222 files changed, 9506 insertions, 5177 deletions
diff --git a/src/citra/citra.cpp b/src/citra/citra.cpp
index 6ac5c5dc5..d6e8a4ec7 100644
--- a/src/citra/citra.cpp
+++ b/src/citra/citra.cpp
@@ -2,9 +2,15 @@
 // Licensed under GPLv2
 // Refer to the license.txt file included.
+#include <thread>
 #include "common/common.h"
-#include "common/log_manager.h"
+#include "common/logging/text_formatter.h"
+#include "common/logging/backend.h"
+#include "common/logging/filter.h"
+#include "common/scope_exit.h"
+#include "core/settings.h"
 #include "core/system.h"
 #include "core/core.h"
 #include "core/loader/loader.h"
@@ -14,14 +20,21 @@
 /// Application entry point
 int __cdecl main(int argc, char **argv) {
-    LogManager::Init();
+    std::shared_ptr<Log::Logger> logger = Log::InitGlobalLogger();
+    Log::Filter log_filter(Log::Level::Debug);
+    std::thread logging_thread(Log::TextLoggingLoop, logger, &log_filter);
+    SCOPE_EXIT({
+        logger->Close();
+        logging_thread.join();
+    });
    if (argc < 2) {
-        ERROR_LOG(BOOT, "Failed to load ROM: No ROM specified");
+        LOG_CRITICAL(Frontend, "Failed to load ROM: No ROM specified");
        return -1;
    }
    Config config;
+    log_filter.ParseFilterString(Settings::values.log_filter);
    std::string boot_filename = argv[1];
    EmuWindow_GLFW* emu_window = new EmuWindow_GLFW;
@@ -30,7 +43,7 @@ int __cdecl main(int argc, char **argv) {
    Loader::ResultStatus load_result = Loader::LoadFile(boot_filename);
    if (Loader::ResultStatus::Success != load_result) {
-        ERROR_LOG(BOOT, "Failed to load ROM (Error %i)!", load_result);
+        LOG_CRITICAL(Frontend, "Failed to load ROM (Error %i)!", load_result);
        return -1;
    }
diff --git a/src/citra/config.cpp b/src/citra/config.cpp
index c5ce8a164..92764809e 100644
--- a/src/citra/config.cpp
+++ b/src/citra/config.cpp
@@ -22,21 +22,22 @@ Config::Config() {
 bool Config::LoadINI(INIReader* config, const char* location, const std::string& default_contents, bool retry) {
    if (config->ParseError() < 0) {
        if (retry) {
-            ERROR_LOG(CONFIG, "Failed to load %s. Creating file from defaults...", location);
+            LOG_WARNING(Config, "Failed to load %s. Creating file from defaults...", location);
            FileUtil::CreateFullPath(location);
            FileUtil::WriteStringToFile(true, default_contents, location);
            *config = INIReader(location); // Reopen file
            return LoadINI(config, location, default_contents, false);
        }
-        ERROR_LOG(CONFIG, "Failed.");
+        LOG_ERROR(Config, "Failed.");
        return false;
    }
-    INFO_LOG(CONFIG, "Successfully loaded %s", location);
+    LOG_INFO(Config, "Successfully loaded %s", location);
    return true;
 }
-void Config::ReadControls() {
+void Config::ReadValues() {
+    // Controls
    Settings::values.pad_a_key = glfw_config->GetInteger("Controls", "pad_a", GLFW_KEY_A);
    Settings::values.pad_b_key = glfw_config->GetInteger("Controls", "pad_b", GLFW_KEY_S);
    Settings::values.pad_x_key = glfw_config->GetInteger("Controls", "pad_x", GLFW_KEY_Z);
@@ -54,22 +55,21 @@ void Config::ReadControls() {
    Settings::values.pad_sdown_key  = glfw_config->GetInteger("Controls", "pad_sdown",  GLFW_KEY_DOWN);
    Settings::values.pad_sleft_key  = glfw_config->GetInteger("Controls", "pad_sleft",  GLFW_KEY_LEFT);
    Settings::values.pad_sright_key = glfw_config->GetInteger("Controls", "pad_sright", GLFW_KEY_RIGHT);
-}
-void Config::ReadCore() {
+    // Core
    Settings::values.cpu_core = glfw_config->GetInteger("Core", "cpu_core", Core::CPU_Interpreter);
    Settings::values.gpu_refresh_rate = glfw_config->GetInteger("Core", "gpu_refresh_rate", 60);
-}
-void Config::ReadData() {
+    // Data Storage
    Settings::values.use_virtual_sd = glfw_config->GetBoolean("Data Storage", "use_virtual_sd", true);
+    // Miscellaneous
+    Settings::values.log_filter = glfw_config->Get("Miscellaneous", "log_filter", "*:Info");
 }
 void Config::Reload() {
    LoadINI(glfw_config, glfw_config_loc.c_str(), DefaultINI::glfw_config_file);
-    ReadControls();
+    ReadValues();
-    ReadCore();
-    ReadData();
 }
 Config::~Config() {
diff --git a/src/citra/config.h b/src/citra/config.h
index 4f6551876..2b46fa8aa 100644
--- a/src/citra/config.h
+++ b/src/citra/config.h
@@ -15,9 +15,7 @@ class Config {
    std::string glfw_config_loc;
    bool LoadINI(INIReader* config, const char* location, const std::string& default_contents="", bool retry=true);
-    void ReadControls();
+    void ReadValues();
-    void ReadCore();
-    void ReadData();
 public:
    Config();
    ~Config();
diff --git a/src/citra/default_ini.h b/src/citra/default_ini.h
index 7352c70c2..7cf543e07 100644
--- a/src/citra/default_ini.h
+++ b/src/citra/default_ini.h
@@ -28,10 +28,13 @@ pad_sright =
 [Core]
 cpu_core = ## 0: Interpreter (default), 1: FastInterpreter (experimental)
-gpu_refresh_rate = ## 60 (default), 1024 or 2048 may work better on the FastInterpreter
+gpu_refresh_rate = ## 60 (default)
 [Data Storage]
 use_virtual_sd =
+[Miscellaneous]
+log_filter = *:Info  ## Examples: *:Debug Kernel.SVC:Trace Service.*:Critical
 )";
 }
diff --git a/src/citra/emu_window/emu_window_glfw.cpp b/src/citra/emu_window/emu_window_glfw.cpp
index 0c774bbc5..929e09f43 100644
--- a/src/citra/emu_window/emu_window_glfw.cpp
+++ b/src/citra/emu_window/emu_window_glfw.cpp
@@ -2,6 +2,8 @@
 // Licensed under GPLv2
 // Refer to the license.txt file included.
+#include <GLFW/glfw3.h>
 #include "common/common.h"
 #include "video_core/video_core.h"
@@ -10,22 +12,21 @@
 #include "citra/emu_window/emu_window_glfw.h"
+EmuWindow_GLFW* EmuWindow_GLFW::GetEmuWindow(GLFWwindow* win) {
+    return static_cast<EmuWindow_GLFW*>(glfwGetWindowUserPointer(win));
+}
 /// Called by GLFW when a key event occurs
 void EmuWindow_GLFW::OnKeyEvent(GLFWwindow* win, int key, int scancode, int action, int mods) {
-    if (!VideoCore::g_emu_window) {
+    int keyboard_id = GetEmuWindow(win)->keyboard_id;
-        return;
-    }
-    int keyboard_id = ((EmuWindow_GLFW*)VideoCore::g_emu_window)->keyboard_id;
    if (action == GLFW_PRESS) {
        EmuWindow::KeyPressed({key, keyboard_id});
-    }
+    } else if (action == GLFW_RELEASE) {
-    if (action == GLFW_RELEASE) {
        EmuWindow::KeyReleased({key, keyboard_id});
    }
    HID_User::PadUpdateComplete();
 }
@@ -34,15 +35,36 @@ const bool EmuWindow_GLFW::IsOpen() {
    return glfwWindowShouldClose(m_render_window) == 0;
 }
+void EmuWindow_GLFW::OnFramebufferResizeEvent(GLFWwindow* win, int width, int height) {
+    _dbg_assert_(Frontend, width > 0);
+    _dbg_assert_(Frontend, height > 0);
+    GetEmuWindow(win)->NotifyFramebufferSizeChanged(std::pair<unsigned,unsigned>(width, height));
+}
+void EmuWindow_GLFW::OnClientAreaResizeEvent(GLFWwindow* win, int width, int height) {
+    _dbg_assert_(Frontend, width > 0);
+    _dbg_assert_(Frontend, height > 0);
+    // NOTE: GLFW provides no proper way to set a minimal window size.
+    //       Hence, we just ignore the corresponding EmuWindow hint.
+    GetEmuWindow(win)->NotifyClientAreaSizeChanged(std::pair<unsigned,unsigned>(width, height));
+}
 /// EmuWindow_GLFW constructor
 EmuWindow_GLFW::EmuWindow_GLFW() {
    keyboard_id = KeyMap::NewDeviceId();
    ReloadSetKeymaps();
+    glfwSetErrorCallback([](int error, const char *desc){
+        LOG_ERROR(Frontend, "GLFW 0x%08x: %s", error, desc);
+    });
    // Initialize the window
    if(glfwInit() != GL_TRUE) {
-        printf("Failed to initialize GLFW! Exiting...");
+        LOG_CRITICAL(Frontend, "Failed to initialize GLFW! Exiting...");
        exit(1);
    }
    glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
@@ -50,19 +72,31 @@ EmuWindow_GLFW::EmuWindow_GLFW() {
    // GLFW on OSX requires these window hints to be set to create a 3.2+ GL context.
    glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE);
    glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
-        
-    m_render_window = glfwCreateWindow(VideoCore::kScreenTopWidth, 
-        (VideoCore::kScreenTopHeight + VideoCore::kScreenBottomHeight), 
-        m_window_title.c_str(), NULL, NULL);
-    if (m_render_window == NULL) {
+    std::string window_title = Common::StringFromFormat("Citra | %s-%s", Common::g_scm_branch, Common::g_scm_desc);
-        printf("Failed to create GLFW window! Exiting...");
+    m_render_window = glfwCreateWindow(VideoCore::kScreenTopWidth,
+        (VideoCore::kScreenTopHeight + VideoCore::kScreenBottomHeight),
+        window_title.c_str(), nullptr, nullptr);
+    if (m_render_window == nullptr) {
+        LOG_CRITICAL(Frontend, "Failed to create GLFW window! Exiting...");
        exit(1);
    }
-    
-    // Setup callbacks
    glfwSetWindowUserPointer(m_render_window, this);
+    // Notify base interface about window state
+    int width, height;
+    glfwGetFramebufferSize(m_render_window, &width, &height);
+    OnFramebufferResizeEvent(m_render_window, width, height);
+    glfwGetWindowSize(m_render_window, &width, &height);
+    OnClientAreaResizeEvent(m_render_window, width, height);
+    // Setup callbacks
    glfwSetKeyCallback(m_render_window, OnKeyEvent);
+    glfwSetFramebufferSizeCallback(m_render_window, OnFramebufferResizeEvent);
+    glfwSetWindowSizeCallback(m_render_window, OnClientAreaResizeEvent);
    DoneCurrent();
 }
@@ -89,7 +123,7 @@ void EmuWindow_GLFW::MakeCurrent() {
 /// Releases (dunno if this is the "right" word) the GLFW context from the caller thread
 void EmuWindow_GLFW::DoneCurrent() {
-    glfwMakeContextCurrent(NULL);
+    glfwMakeContextCurrent(nullptr);
 }
 void EmuWindow_GLFW::ReloadSetKeymaps() {
@@ -110,3 +144,15 @@ void EmuWindow_GLFW::ReloadSetKeymaps() {
    KeyMap::SetKeyMapping({Settings::values.pad_sup_key,    keyboard_id}, HID_User::PAD_CIRCLE_UP);
    KeyMap::SetKeyMapping({Settings::values.pad_sdown_key,  keyboard_id}, HID_User::PAD_CIRCLE_DOWN);
 }
+void EmuWindow_GLFW::OnMinimalClientAreaChangeRequest(const std::pair<unsigned,unsigned>& minimal_size) {
+    std::pair<int,int> current_size;
+    glfwGetWindowSize(m_render_window, &current_size.first, &current_size.second);
+    _dbg_assert_(Frontend, (int)minimal_size.first > 0 && (int)minimal_size.second > 0);
+    int new_width  = std::max(current_size.first,  (int)minimal_size.first);
+    int new_height = std::max(current_size.second, (int)minimal_size.second);
+    if (current_size != std::make_pair(new_width, new_height))
+        glfwSetWindowSize(m_render_window, new_width, new_height);
+}
diff --git a/src/citra/emu_window/emu_window_glfw.h b/src/citra/emu_window/emu_window_glfw.h
index 7c3072145..5b04e87bb 100644
--- a/src/citra/emu_window/emu_window_glfw.h
+++ b/src/citra/emu_window/emu_window_glfw.h
@@ -4,10 +4,10 @@
 #pragma once
-#include <GLFW/glfw3.h>
 #include "common/emu_window.h"
+struct GLFWwindow;
 class EmuWindow_GLFW : public EmuWindow {
 public:
    EmuWindow_GLFW();
@@ -16,12 +16,12 @@ public:
    /// Swap buffers to display the next frame
    void SwapBuffers() override;
-        /// Polls window events
+    /// Polls window events
-        void PollEvents() override;
+    void PollEvents() override;
    /// Makes the graphics context current for the caller thread
    void MakeCurrent() override;
-    
    /// Releases (dunno if this is the "right" word) the GLFW context from the caller thread
    void DoneCurrent() override;
@@ -30,9 +30,17 @@ public:
    /// Whether the window is still open, and a close request hasn't yet been sent
    const bool IsOpen();
+    static void OnClientAreaResizeEvent(GLFWwindow* win, int width, int height);
+    static void OnFramebufferResizeEvent(GLFWwindow* win, int width, int height);
    void ReloadSetKeymaps() override;
 private:
+    void OnMinimalClientAreaChangeRequest(const std::pair<unsigned,unsigned>& minimal_size) override;
+    static EmuWindow_GLFW* GetEmuWindow(GLFWwindow* win);
    GLFWwindow* m_render_window; ///< Internal GLFW render window
    /// Device id of keyboard for use with KeyMap
diff --git a/src/citra_qt/CMakeLists.txt b/src/citra_qt/CMakeLists.txt
index 98a48a69a..90e5c6aa6 100644
--- a/src/citra_qt/CMakeLists.txt
+++ b/src/citra_qt/CMakeLists.txt
@@ -8,9 +8,12 @@ set(SRCS
            debugger/callstack.cpp
            debugger/disassembler.cpp
            debugger/graphics.cpp
+            debugger/graphics_breakpoints.cpp
            debugger/graphics_cmdlists.cpp
+            debugger/graphics_framebuffer.cpp
            debugger/ramview.cpp
            debugger/registers.cpp
+            util/spinbox.cpp
            bootmanager.cpp
            hotkeys.cpp
            main.cpp
@@ -23,9 +26,13 @@ set(HEADERS
            debugger/callstack.hxx
            debugger/disassembler.hxx
            debugger/graphics.hxx
+            debugger/graphics_breakpoints.hxx
+            debugger/graphics_breakpoints_p.hxx
            debugger/graphics_cmdlists.hxx
+            debugger/graphics_framebuffer.hxx
            debugger/ramview.hxx
            debugger/registers.hxx
+            util/spinbox.hxx
            bootmanager.hxx
            hotkeys.hxx
            main.hxx
diff --git a/src/citra_qt/bootmanager.cpp b/src/citra_qt/bootmanager.cpp
index 8f3799351..6d08d6afc 100644
--- a/src/citra_qt/bootmanager.cpp
+++ b/src/citra_qt/bootmanager.cpp
@@ -2,12 +2,20 @@
 #include <QKeyEvent>
 #include <QApplication>
+#if QT_VERSION >= QT_VERSION_CHECK(5, 0, 0)
+// Required for screen DPI information
+#include <QScreen>
+#include <QWindow>
+#endif
 #include "common/common.h"
 #include "bootmanager.hxx"
 #include "core/core.h"
 #include "core/settings.h"
+#include "video_core/debug_utils/debug_utils.h"
 #include "video_core/video_core.h"
 #include "citra_qt/version.h"
@@ -17,7 +25,7 @@
 #define APP_TITLE       APP_NAME " " APP_VERSION
 #define COPYRIGHT       "Copyright (C) 2013-2014 Citra Team"
-EmuThread::EmuThread(GRenderWindow* render_window) : 
+EmuThread::EmuThread(GRenderWindow* render_window) :
    filename(""), exec_cpu_step(false), cpu_running(false),
    stop_run(false), render_window(render_window)
 {
@@ -33,19 +41,16 @@ void EmuThread::run()
    stop_run = false;
    while (!stop_run)
    {
-        for (int tight_loop = 0; tight_loop < 10000; ++tight_loop)
+        if (cpu_running)
        {
-            if (cpu_running || exec_cpu_step)
+            Core::RunLoop();
-            {
+        }
-                if (exec_cpu_step)
+        else if (exec_cpu_step)
-                    exec_cpu_step = false;
+        {
+            exec_cpu_step = false;
-                Core::SingleStep();
+            Core::SingleStep();
-                if (!cpu_running) {
+            emit CPUStepped();
-                    emit CPUStepped();
+            yieldCurrentThread();
-                    yieldCurrentThread();
-                }
-            }
        }
    }
    render_window->moveContext();
@@ -57,26 +62,33 @@ void EmuThread::Stop()
 {
    if (!isRunning())
    {
-        INFO_LOG(MASTER_LOG, "EmuThread::Stop called while emu thread wasn't running, returning...");
+        LOG_WARNING(Frontend, "EmuThread::Stop called while emu thread wasn't running, returning...");
        return;
    }
    stop_run = true;
+    // Release emu threads from any breakpoints, so that this doesn't hang forever.
+    Pica::g_debug_context->ClearBreakpoints();
    //core::g_state = core::SYS_DIE;
-    wait(500);
+    // TODO: Waiting here is just a bad workaround for retarded shutdown logic.
+    wait(1000);
    if (isRunning())
    {
-        WARN_LOG(MASTER_LOG, "EmuThread still running, terminating...");
+        LOG_WARNING(Frontend, "EmuThread still running, terminating...");
        quit();
-        wait(1000);
+        // TODO: Waiting 50 seconds can be necessary if the logging subsystem has a lot of spam
+        // queued... This should be fixed.
+        wait(50000);
        if (isRunning())
        {
-            WARN_LOG(MASTER_LOG, "EmuThread STILL running, something is wrong here...");
+            LOG_CRITICAL(Frontend, "EmuThread STILL running, something is wrong here...");
            terminate();
        }
    }
-    INFO_LOG(MASTER_LOG, "EmuThread stopped");
+    LOG_INFO(Frontend, "EmuThread stopped");
 }
@@ -85,20 +97,20 @@ void EmuThread::Stop()
 class GGLWidgetInternal : public QGLWidget
 {
 public:
-    GGLWidgetInternal(QGLFormat fmt, GRenderWindow* parent) : QGLWidget(fmt, parent)
+    GGLWidgetInternal(QGLFormat fmt, GRenderWindow* parent)
-    {
+                     : QGLWidget(fmt, parent), parent(parent) {
-        parent_ = parent;
    }
-    void paintEvent(QPaintEvent* ev) override
+    void paintEvent(QPaintEvent* ev) override {
-    {
    }
    void resizeEvent(QResizeEvent* ev) override {
-        parent_->SetClientAreaWidth(size().width());
+        parent->OnClientAreaResized(ev->size().width(), ev->size().height());
-        parent_->SetClientAreaHeight(size().height());
+        parent->OnFramebufferSizeChanged();
    }
 private:
-    GRenderWindow* parent_;
+    GRenderWindow* parent;
 };
 EmuThread& GRenderWindow::GetEmuThread()
@@ -108,6 +120,9 @@ EmuThread& GRenderWindow::GetEmuThread()
 GRenderWindow::GRenderWindow(QWidget* parent) : QWidget(parent), emu_thread(this), keyboard_id(0)
 {
+    std::string window_title = Common::StringFromFormat("Citra | %s-%s", Common::g_scm_branch, Common::g_scm_desc);
+    setWindowTitle(QString::fromStdString(window_title));
    keyboard_id = KeyMap::NewDeviceId();
    ReloadSetKeymaps();
@@ -117,16 +132,25 @@ GRenderWindow::GRenderWindow(QWidget* parent) : QWidget(parent), emu_thread(this
    fmt.setProfile(QGLFormat::CoreProfile);
    // Requests a forward-compatible context, which is required to get a 3.2+ context on OS X
    fmt.setOption(QGL::NoDeprecatedFunctions);
-    
    child = new GGLWidgetInternal(fmt, this);
    QBoxLayout* layout = new QHBoxLayout(this);
    resize(VideoCore::kScreenTopWidth, VideoCore::kScreenTopHeight + VideoCore::kScreenBottomHeight);
    layout->addWidget(child);
    layout->setMargin(0);
    setLayout(layout);
-    QObject::connect(&emu_thread, SIGNAL(started()), this, SLOT(moveContext()));
+    connect(&emu_thread, SIGNAL(started()), this, SLOT(moveContext()));
+    OnMinimalClientAreaChangeRequest(GetActiveConfig().min_client_area_size);
+    OnFramebufferSizeChanged();
+    NotifyClientAreaSizeChanged(std::pair<unsigned,unsigned>(child->width(), child->height()));
    BackupGeometry();
+#if QT_VERSION >= QT_VERSION_CHECK(5, 0, 0)
+    connect(this->windowHandle(), SIGNAL(screenChanged(QScreen*)), this, SLOT(OnFramebufferSizeChanged()));
+#endif
 }
 void GRenderWindow::moveContext()
@@ -169,14 +193,28 @@ void GRenderWindow::DoneCurrent()
 }
 void GRenderWindow::PollEvents() {
-    // TODO(ShizZy): Does this belong here? This is a reasonable place to update the window title
+}
-    //  from the main thread, but this should probably be in an event handler...
-    /*
+// On Qt 5.0+, this correctly gets the size of the framebuffer (pixels).
-    static char title[128];
+//
-    sprintf(title, "%s (FPS: %02.02f)", window_title_.c_str(), 
+// Older versions get the window size (density independent pixels),
-        video_core::g_renderer->current_fps());
+// and hence, do not support DPI scaling ("retina" displays).
-    setWindowTitle(title);
+// The result will be a viewport that is smaller than the extent of the window.
-    */
+void GRenderWindow::OnFramebufferSizeChanged()
+{
+    // Screen changes potentially incur a change in screen DPI, hence we should update the framebuffer size
+#if QT_VERSION >= QT_VERSION_CHECK(5, 0, 0)
+    // windowHandle() might not be accessible until the window is displayed to screen.
+    auto pixel_ratio = windowHandle() ? (windowHandle()->screen()->devicePixelRatio()) : 1.0;
+    unsigned width = child->QPaintDevice::width() * pixel_ratio;
+    unsigned height = child->QPaintDevice::height() * pixel_ratio;
+#else
+    unsigned width = child->QPaintDevice::width();
+    unsigned height = child->QPaintDevice::height();
+#endif
+    NotifyFramebufferSizeChanged(std::make_pair(width, height));
 }
 void GRenderWindow::BackupGeometry()
@@ -201,7 +239,7 @@ QByteArray GRenderWindow::saveGeometry()
 {
    // If we are a top-level widget, store the current geometry
    // otherwise, store the last backup
-    if (parent() == NULL)
+    if (parent() == nullptr)
        return ((QGLWidget*)this)->saveGeometry();
    else
        return geometry;
@@ -239,3 +277,11 @@ void GRenderWindow::ReloadSetKeymaps()
    KeyMap::SetKeyMapping({Settings::values.pad_sdown_key,  keyboard_id}, HID_User::PAD_CIRCLE_DOWN);
 }
+void GRenderWindow::OnClientAreaResized(unsigned width, unsigned height)
+{
+    NotifyClientAreaSizeChanged(std::make_pair(width, height));
+}
+void GRenderWindow::OnMinimalClientAreaChangeRequest(const std::pair<unsigned,unsigned>& minimal_size) {
+    setMinimumSize(minimal_size.first, minimal_size.second);
+}
diff --git a/src/citra_qt/bootmanager.hxx b/src/citra_qt/bootmanager.hxx
index f8afc403e..5f69f15ea 100644
--- a/src/citra_qt/bootmanager.hxx
+++ b/src/citra_qt/bootmanager.hxx
@@ -1,12 +1,16 @@
+#include <atomic>
 #include <QThread>
 #include <QGLWidget>
-#include <atomic>
 #include "common/common.h"
 #include "common/emu_window.h"
-class GRenderWindow;
+class QScreen;
 class QKeyEvent;
+class GRenderWindow;
 class EmuThread : public QThread
 {
    Q_OBJECT
@@ -14,7 +18,7 @@ class EmuThread : public QThread
 public:
    /**
     * Set image filename
-     * 
+     *
     * @param filename
     * @warning Only call when not running!
     */
@@ -74,7 +78,7 @@ private:
 signals:
    /**
     * Emitted when CPU when we've finished processing a single Gekko instruction
-     * 
+     *
     * @warning This will only be emitted when the CPU is not running (SetCpuRunning(false))
     * @warning When connecting to this signal from other threads, make sure to specify either Qt::QueuedConnection (invoke slot within the destination object's message thread) or even Qt::BlockingQueuedConnection (additionally block source thread until slot returns)
     */
@@ -100,7 +104,7 @@ public:
    void BackupGeometry();
    void RestoreGeometry();
    void restoreGeometry(const QByteArray& geometry); // overridden
-    QByteArray saveGeometry(); // overridden
+    QByteArray saveGeometry();  // overridden
    EmuThread& GetEmuThread();
@@ -109,10 +113,16 @@ public:
    void ReloadSetKeymaps() override;
+    void OnClientAreaResized(unsigned width, unsigned height);
+    void OnFramebufferSizeChanged();
 public slots:
-    void moveContext();
+    void moveContext();  // overridden
 private:
+    void OnMinimalClientAreaChangeRequest(const std::pair<unsigned,unsigned>& minimal_size) override;
    QGLWidget* child;
    EmuThread emu_thread;
diff --git a/src/citra_qt/config.cpp b/src/citra_qt/config.cpp
index 63d396439..0ae6b8b2d 100644
--- a/src/citra_qt/config.cpp
+++ b/src/citra_qt/config.cpp
@@ -21,7 +21,7 @@ Config::Config() {
    Reload();
 }
-void Config::ReadControls() {
+void Config::ReadValues() {
    qt_config->beginGroup("Controls");
    Settings::values.pad_a_key = qt_config->value("pad_a", Qt::Key_A).toInt();
    Settings::values.pad_b_key = qt_config->value("pad_b", Qt::Key_S).toInt();
@@ -41,9 +41,22 @@ void Config::ReadControls() {
    Settings::values.pad_sleft_key  = qt_config->value("pad_sleft",  Qt::Key_Left).toInt();
    Settings::values.pad_sright_key = qt_config->value("pad_sright", Qt::Key_Right).toInt();
    qt_config->endGroup();
+    qt_config->beginGroup("Core");
+    Settings::values.cpu_core = qt_config->value("cpu_core", Core::CPU_Interpreter).toInt();
+    Settings::values.gpu_refresh_rate = qt_config->value("gpu_refresh_rate", 60).toInt();
+    qt_config->endGroup();
+    qt_config->beginGroup("Data Storage");
+    Settings::values.use_virtual_sd = qt_config->value("use_virtual_sd", true).toBool();
+    qt_config->endGroup();
+    qt_config->beginGroup("Miscellaneous");
+    Settings::values.log_filter = qt_config->value("log_filter", "*:Info").toString().toStdString();
+    qt_config->endGroup();
 }
-void Config::SaveControls() {
+void Config::SaveValues() {
    qt_config->beginGroup("Controls");
    qt_config->setValue("pad_a", Settings::values.pad_a_key);
    qt_config->setValue("pad_b", Settings::values.pad_b_key);
@@ -63,44 +76,27 @@ void Config::SaveControls() {
    qt_config->setValue("pad_sleft",  Settings::values.pad_sleft_key);
    qt_config->setValue("pad_sright", Settings::values.pad_sright_key);
    qt_config->endGroup();
-}
-void Config::ReadCore() {
-    qt_config->beginGroup("Core");
-    Settings::values.cpu_core = qt_config->value("cpu_core", Core::CPU_Interpreter).toInt();
-    Settings::values.gpu_refresh_rate = qt_config->value("gpu_refresh_rate", 60).toInt();
-    qt_config->endGroup();
-}
-void Config::SaveCore() {
    qt_config->beginGroup("Core");
    qt_config->setValue("cpu_core", Settings::values.cpu_core);
    qt_config->setValue("gpu_refresh_rate", Settings::values.gpu_refresh_rate);
    qt_config->endGroup();
-}
-void Config::ReadData() {
    qt_config->beginGroup("Data Storage");
-    Settings::values.use_virtual_sd = qt_config->value("use_virtual_sd", true).toBool();
+    qt_config->setValue("use_virtual_sd", Settings::values.use_virtual_sd);
    qt_config->endGroup();
-}
-void Config::SaveData() {
+    qt_config->beginGroup("Miscellaneous");
-    qt_config->beginGroup("Data Storage");
+    qt_config->setValue("log_filter", QString::fromStdString(Settings::values.log_filter));
-    qt_config->setValue("use_virtual_sd", Settings::values.use_virtual_sd);
    qt_config->endGroup();
 }
 void Config::Reload() {
-    ReadControls();
+    ReadValues();
-    ReadCore();
-    ReadData();
 }
 void Config::Save() {
-    SaveControls();
+    SaveValues();
-    SaveCore();
-    SaveData();
 }
 Config::~Config() {
diff --git a/src/citra_qt/config.h b/src/citra_qt/config.h
index 782c26287..4c95d0cb9 100644
--- a/src/citra_qt/config.h
+++ b/src/citra_qt/config.h
@@ -12,12 +12,8 @@ class Config {
    QSettings* qt_config;
    std::string qt_config_loc;
-    void ReadControls();
+    void ReadValues();
-    void SaveControls();
+    void SaveValues();
-    void ReadCore();
-    void SaveCore();
-    void ReadData();
-    void SaveData();
 public:
    Config();
    ~Config();
diff --git a/src/citra_qt/config/controller_config_util.cpp b/src/citra_qt/config/controller_config_util.cpp
index c5426570b..aee3f8616 100644
--- a/src/citra_qt/config/controller_config_util.cpp
+++ b/src/citra_qt/config/controller_config_util.cpp
@@ -48,7 +48,7 @@ void GKeyConfigButton::OnActivePortChanged(const common::Config::ControllerPort&
    else if (config.keys.key_code[id] == Qt::Key_Control) text = tr("Control");
    else if (config.keys.key_code[id] == Qt::Key_Alt) text = tr("Alt");
    else if (config.keys.key_code[id] == Qt::Key_Meta) text = tr("Meta");
-        setText(text);
+    setText(text);
 }
 void GKeyConfigButton::OnClicked()
@@ -118,4 +118,4 @@ GButtonConfigGroup::GButtonConfigGroup(const QString& name, common::Config::Cont
    setLayout(layout);
 }
-*/
-\ No newline at end of file
+*/
diff --git a/src/citra_qt/debugger/callstack.cpp b/src/citra_qt/debugger/callstack.cpp
index 77fb0c9ed..895851be3 100644
--- a/src/citra_qt/debugger/callstack.cpp
+++ b/src/citra_qt/debugger/callstack.cpp
@@ -28,7 +28,7 @@ void CallstackWidget::OnCPUStepped()
    u32 sp = app_core->GetReg(13); //stack pointer
    u32 addr, ret_addr, call_addr, func_addr;
-    
    int counter = 0;
    for (int addr = 0x10000000; addr >= sp; addr -= 4)
    {
@@ -55,7 +55,7 @@ void CallstackWidget::OnCPUStepped()
            callstack_model->setItem(counter, 0, new QStandardItem(QString("0x%1").arg(addr, 8, 16, QLatin1Char('0'))));
            callstack_model->setItem(counter, 1, new QStandardItem(QString("0x%1").arg(ret_addr, 8, 16, QLatin1Char('0'))));
            callstack_model->setItem(counter, 2, new QStandardItem(QString("0x%1").arg(call_addr, 8, 16, QLatin1Char('0'))));
-            
            name = Symbols::HasSymbol(func_addr) ? Symbols::GetSymbol(func_addr).name : "unknown";
            callstack_model->setItem(counter, 3, new QStandardItem(QString("%1_%2").arg(QString::fromStdString(name))
                .arg(QString("0x%1").arg(func_addr, 8, 16, QLatin1Char('0')))));
@@ -63,4 +63,4 @@ void CallstackWidget::OnCPUStepped()
            counter++;
        }
    }
-}
-\ No newline at end of file
+}
diff --git a/src/citra_qt/debugger/graphics_breakpoints.cpp b/src/citra_qt/debugger/graphics_breakpoints.cpp
new file mode 100644
index 000000000..53394b6e6
--- /dev/null
+++ b/src/citra_qt/debugger/graphics_breakpoints.cpp
@@ -0,0 +1,261 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2
+// Refer to the license.txt file included.
+#include <QMetaType>
+#include <QPushButton>
+#include <QTreeWidget>
+#include <QVBoxLayout>
+#include <QLabel>
+#include "graphics_breakpoints.hxx"
+#include "graphics_breakpoints_p.hxx"
+BreakPointModel::BreakPointModel(std::shared_ptr<Pica::DebugContext> debug_context, QObject* parent)
+    : QAbstractListModel(parent), context_weak(debug_context),
+      at_breakpoint(debug_context->at_breakpoint),
+      active_breakpoint(debug_context->active_breakpoint)
+{
+}
+int BreakPointModel::columnCount(const QModelIndex& parent) const
+{
+    return 2;
+}
+int BreakPointModel::rowCount(const QModelIndex& parent) const
+{
+    return static_cast<int>(Pica::DebugContext::Event::NumEvents);
+}
+QVariant BreakPointModel::data(const QModelIndex& index, int role) const
+{
+    const auto event = static_cast<Pica::DebugContext::Event>(index.row());
+    switch (role) {
+    case Qt::DisplayRole:
+    {
+        switch (index.column()) {
+        case 0:
+        {
+            std::map<Pica::DebugContext::Event, QString> map;
+            map.insert({Pica::DebugContext::Event::CommandLoaded, tr("Pica command loaded")});
+            map.insert({Pica::DebugContext::Event::CommandProcessed, tr("Pica command processed")});
+            map.insert({Pica::DebugContext::Event::IncomingPrimitiveBatch, tr("Incoming primitive batch")});
+            map.insert({Pica::DebugContext::Event::FinishedPrimitiveBatch, tr("Finished primitive batch")});
+            _dbg_assert_(Debug_GPU, map.size() == static_cast<size_t>(Pica::DebugContext::Event::NumEvents));
+            return map[event];
+        }
+        case 1:
+            return data(index, Role_IsEnabled).toBool() ? tr("Enabled") : tr("Disabled");
+        default:
+            break;
+        }
+        break;
+    }
+    case Qt::BackgroundRole:
+    {
+        if (at_breakpoint && index.row() == static_cast<int>(active_breakpoint)) {
+            return QBrush(QColor(0xE0, 0xE0, 0x10));
+        }
+        break;
+    }
+    case Role_IsEnabled:
+    {
+        auto context = context_weak.lock();
+        return context && context->breakpoints[event].enabled;
+    }
+    default:
+        break;
+    }
+    return QVariant();
+}
+QVariant BreakPointModel::headerData(int section, Qt::Orientation orientation, int role) const
+{
+    switch(role) {
+    case Qt::DisplayRole:
+    {
+        if (section == 0) {
+            return tr("Event");
+        } else if (section == 1) {
+            return tr("Status");
+        }
+        break;
+    }
+    }
+    return QVariant();
+}
+bool BreakPointModel::setData(const QModelIndex& index, const QVariant& value, int role)
+{
+    const auto event = static_cast<Pica::DebugContext::Event>(index.row());
+    switch (role) {
+    case Role_IsEnabled:
+    {
+        auto context = context_weak.lock();
+        if (!context)
+            return false;
+        context->breakpoints[event].enabled = value.toBool();
+        QModelIndex changed_index = createIndex(index.row(), 1);
+        emit dataChanged(changed_index, changed_index);
+        return true;
+    }
+    }
+    return false;
+}
+void BreakPointModel::OnBreakPointHit(Pica::DebugContext::Event event)
+{
+    auto context = context_weak.lock();
+    if (!context)
+        return;
+    active_breakpoint = context->active_breakpoint;
+    at_breakpoint = context->at_breakpoint;
+    emit dataChanged(createIndex(static_cast<int>(event), 0),
+                     createIndex(static_cast<int>(event), 1));
+}
+void BreakPointModel::OnResumed()
+{
+    auto context = context_weak.lock();
+    if (!context)
+        return;
+    at_breakpoint = context->at_breakpoint;
+    emit dataChanged(createIndex(static_cast<int>(active_breakpoint), 0),
+                     createIndex(static_cast<int>(active_breakpoint), 1));
+    active_breakpoint = context->active_breakpoint;
+}
+GraphicsBreakPointsWidget::GraphicsBreakPointsWidget(std::shared_ptr<Pica::DebugContext> debug_context,
+                                                     QWidget* parent)
+    : QDockWidget(tr("Pica Breakpoints"), parent),
+      Pica::DebugContext::BreakPointObserver(debug_context)
+{
+    setObjectName("PicaBreakPointsWidget");
+    status_text = new QLabel(tr("Emulation running"));
+    resume_button = new QPushButton(tr("Resume"));
+    resume_button->setEnabled(false);
+    breakpoint_model = new BreakPointModel(debug_context, this);
+    breakpoint_list = new QTreeView;
+    breakpoint_list->setModel(breakpoint_model);
+    toggle_breakpoint_button = new QPushButton(tr("Enable"));
+    toggle_breakpoint_button->setEnabled(false);
+    qRegisterMetaType<Pica::DebugContext::Event>("Pica::DebugContext::Event");
+    connect(resume_button, SIGNAL(clicked()), this, SLOT(OnResumeRequested()));
+    connect(this, SIGNAL(BreakPointHit(Pica::DebugContext::Event,void*)),
+            this, SLOT(OnBreakPointHit(Pica::DebugContext::Event,void*)),
+            Qt::BlockingQueuedConnection);
+    connect(this, SIGNAL(Resumed()), this, SLOT(OnResumed()));
+    connect(this, SIGNAL(BreakPointHit(Pica::DebugContext::Event,void*)),
+            breakpoint_model, SLOT(OnBreakPointHit(Pica::DebugContext::Event)),
+            Qt::BlockingQueuedConnection);
+    connect(this, SIGNAL(Resumed()), breakpoint_model, SLOT(OnResumed()));
+    connect(this, SIGNAL(BreakPointsChanged(const QModelIndex&,const QModelIndex&)),
+            breakpoint_model, SIGNAL(dataChanged(const QModelIndex&,const QModelIndex&)));
+    connect(breakpoint_list->selectionModel(), SIGNAL(currentChanged(QModelIndex,QModelIndex)),
+            this, SLOT(OnBreakpointSelectionChanged(QModelIndex)));
+    connect(toggle_breakpoint_button, SIGNAL(clicked()), this, SLOT(OnToggleBreakpointEnabled()));
+    QWidget* main_widget = new QWidget;
+    auto main_layout = new QVBoxLayout;
+    {
+        auto sub_layout = new QHBoxLayout;
+        sub_layout->addWidget(status_text);
+        sub_layout->addWidget(resume_button);
+        main_layout->addLayout(sub_layout);
+    }
+    main_layout->addWidget(breakpoint_list);
+    main_layout->addWidget(toggle_breakpoint_button);
+    main_widget->setLayout(main_layout);
+    setWidget(main_widget);
+}
+void GraphicsBreakPointsWidget::OnPicaBreakPointHit(Event event, void* data)
+{
+    // Process in GUI thread
+    emit BreakPointHit(event, data);
+}
+void GraphicsBreakPointsWidget::OnBreakPointHit(Pica::DebugContext::Event event, void* data)
+{
+    status_text->setText(tr("Emulation halted at breakpoint"));
+    resume_button->setEnabled(true);
+}
+void GraphicsBreakPointsWidget::OnPicaResume()
+{
+    // Process in GUI thread
+    emit Resumed();
+}
+void GraphicsBreakPointsWidget::OnResumed()
+{
+    status_text->setText(tr("Emulation running"));
+    resume_button->setEnabled(false);
+}
+void GraphicsBreakPointsWidget::OnResumeRequested()
+{
+    if (auto context = context_weak.lock())
+        context->Resume();
+}
+void GraphicsBreakPointsWidget::OnBreakpointSelectionChanged(const QModelIndex& index)
+{
+    if (!index.isValid()) {
+        toggle_breakpoint_button->setEnabled(false);
+        return;
+    }
+    toggle_breakpoint_button->setEnabled(true);
+    UpdateToggleBreakpointButton(index);
+}
+void GraphicsBreakPointsWidget::OnToggleBreakpointEnabled()
+{
+    QModelIndex index = breakpoint_list->selectionModel()->currentIndex();
+    bool new_state = !(breakpoint_model->data(index, BreakPointModel::Role_IsEnabled).toBool());
+    breakpoint_model->setData(index, new_state,
+                              BreakPointModel::Role_IsEnabled);
+    UpdateToggleBreakpointButton(index);
+}
+void GraphicsBreakPointsWidget::UpdateToggleBreakpointButton(const QModelIndex& index)
+{
+    if (true == breakpoint_model->data(index, BreakPointModel::Role_IsEnabled).toBool()) {
+        toggle_breakpoint_button->setText(tr("Disable"));
+    } else {
+        toggle_breakpoint_button->setText(tr("Enable"));
+    }
+}
diff --git a/src/citra_qt/debugger/graphics_breakpoints.hxx b/src/citra_qt/debugger/graphics_breakpoints.hxx
new file mode 100644
index 000000000..2142c6fa1
--- /dev/null
+++ b/src/citra_qt/debugger/graphics_breakpoints.hxx
@@ -0,0 +1,53 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2
+// Refer to the license.txt file included.
+#pragma once
+#include <memory>
+#include <QAbstractListModel>
+#include <QDockWidget>
+#include "video_core/debug_utils/debug_utils.h"
+class QLabel;
+class QPushButton;
+class QTreeView;
+class BreakPointModel;
+class GraphicsBreakPointsWidget : public QDockWidget, Pica::DebugContext::BreakPointObserver {
+    Q_OBJECT
+    using Event = Pica::DebugContext::Event;
+public:
+    GraphicsBreakPointsWidget(std::shared_ptr<Pica::DebugContext> debug_context,
+                              QWidget* parent = nullptr);
+    void OnPicaBreakPointHit(Pica::DebugContext::Event event, void* data) override;
+    void OnPicaResume() override;
+public slots:
+    void OnBreakPointHit(Pica::DebugContext::Event event, void* data);
+    void OnResumeRequested();
+    void OnResumed();
+    void OnBreakpointSelectionChanged(const QModelIndex&);
+    void OnToggleBreakpointEnabled();
+signals:
+    void Resumed();
+    void BreakPointHit(Pica::DebugContext::Event event, void* data);
+    void BreakPointsChanged(const QModelIndex& topLeft, const QModelIndex& bottomRight);
+private:
+    void UpdateToggleBreakpointButton(const QModelIndex& index);
+    QLabel* status_text;
+    QPushButton* resume_button;
+    QPushButton* toggle_breakpoint_button;
+    BreakPointModel* breakpoint_model;
+    QTreeView* breakpoint_list;
+};
diff --git a/src/citra_qt/debugger/graphics_breakpoints_p.hxx b/src/citra_qt/debugger/graphics_breakpoints_p.hxx
new file mode 100644
index 000000000..bf5daf73d
--- /dev/null
+++ b/src/citra_qt/debugger/graphics_breakpoints_p.hxx
@@ -0,0 +1,38 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2
+// Refer to the license.txt file included.
+#pragma once
+#include <memory>
+#include <QAbstractListModel>
+#include "video_core/debug_utils/debug_utils.h"
+class BreakPointModel : public QAbstractListModel {
+    Q_OBJECT
+public:
+    enum {
+        Role_IsEnabled = Qt::UserRole,
+    };
+    BreakPointModel(std::shared_ptr<Pica::DebugContext> context, QObject* parent);
+    int columnCount(const QModelIndex& parent = QModelIndex()) const override;
+    int rowCount(const QModelIndex& parent = QModelIndex()) const override;
+    QVariant data(const QModelIndex& index, int role = Qt::DisplayRole) const override;
+    QVariant headerData(int section, Qt::Orientation orientation, int role = Qt::DisplayRole) const override;
+    bool setData(const QModelIndex& index, const QVariant& value, int role = Qt::EditRole);
+public slots:
+    void OnBreakPointHit(Pica::DebugContext::Event event);
+    void OnResumed();
+private:
+    std::weak_ptr<Pica::DebugContext> context_weak;
+    bool at_breakpoint;
+    Pica::DebugContext::Event active_breakpoint;
+};
diff --git a/src/citra_qt/debugger/graphics_cmdlists.cpp b/src/citra_qt/debugger/graphics_cmdlists.cpp
index 71dd166cd..7f97cf143 100644
--- a/src/citra_qt/debugger/graphics_cmdlists.cpp
+++ b/src/citra_qt/debugger/graphics_cmdlists.cpp
@@ -2,30 +2,171 @@
 // Licensed under GPLv2
 // Refer to the license.txt file included.
+#include <QLabel>
 #include <QListView>
+#include <QMainWindow>
 #include <QPushButton>
 #include <QVBoxLayout>
 #include <QTreeView>
+#include <QSpinBox>
+#include <QComboBox>
+#include "video_core/pica.h"
+#include "video_core/math.h"
+#include "video_core/debug_utils/debug_utils.h"
 #include "graphics_cmdlists.hxx"
-GPUCommandListModel::GPUCommandListModel(QObject* parent) : QAbstractListModel(parent)
+#include "util/spinbox.hxx"
-{
+QImage LoadTexture(u8* src, const Pica::DebugUtils::TextureInfo& info) {
+    QImage decoded_image(info.width, info.height, QImage::Format_ARGB32);
+    for (int y = 0; y < info.height; ++y) {
+        for (int x = 0; x < info.width; ++x) {
+            Math::Vec4<u8> color = Pica::DebugUtils::LookupTexture(src, x, y, info);
+            decoded_image.setPixel(x, y, qRgba(color.r(), color.g(), color.b(), color.a()));
+        }
+    }
+    return decoded_image;
+}
+class TextureInfoWidget : public QWidget {
+public:
+    TextureInfoWidget(u8* src, const Pica::DebugUtils::TextureInfo& info, QWidget* parent = nullptr) : QWidget(parent) {
+        QLabel* image_widget = new QLabel;
+        QPixmap image_pixmap = QPixmap::fromImage(LoadTexture(src, info));
+        image_pixmap = image_pixmap.scaled(200, 100, Qt::KeepAspectRatio, Qt::SmoothTransformation);
+        image_widget->setPixmap(image_pixmap);
+        QVBoxLayout* layout = new QVBoxLayout;
+        layout->addWidget(image_widget);
+        setLayout(layout);
+    }
+};
+TextureInfoDockWidget::TextureInfoDockWidget(const Pica::DebugUtils::TextureInfo& info, QWidget* parent)
+    : QDockWidget(tr("Texture 0x%1").arg(info.address, 8, 16, QLatin1Char('0'))),
+      info(info) {
+    QWidget* main_widget = new QWidget;
+    QLabel* image_widget = new QLabel;
+    connect(this, SIGNAL(UpdatePixmap(const QPixmap&)), image_widget, SLOT(setPixmap(const QPixmap&)));
+    CSpinBox* phys_address_spinbox = new CSpinBox;
+    phys_address_spinbox->SetBase(16);
+    phys_address_spinbox->SetRange(0, 0xFFFFFFFF);
+    phys_address_spinbox->SetPrefix("0x");
+    phys_address_spinbox->SetValue(info.address);
+    connect(phys_address_spinbox, SIGNAL(ValueChanged(qint64)), this, SLOT(OnAddressChanged(qint64)));
+    QComboBox* format_choice = new QComboBox;
+    format_choice->addItem(tr("RGBA8"));
+    format_choice->addItem(tr("RGB8"));
+    format_choice->addItem(tr("RGBA5551"));
+    format_choice->addItem(tr("RGB565"));
+    format_choice->addItem(tr("RGBA4"));
+    format_choice->setCurrentIndex(static_cast<int>(info.format));
+    connect(format_choice, SIGNAL(currentIndexChanged(int)), this, SLOT(OnFormatChanged(int)));
+    QSpinBox* width_spinbox = new QSpinBox;
+    width_spinbox->setMaximum(65535);
+    width_spinbox->setValue(info.width);
+    connect(width_spinbox, SIGNAL(valueChanged(int)), this, SLOT(OnWidthChanged(int)));
+    QSpinBox* height_spinbox = new QSpinBox;
+    height_spinbox->setMaximum(65535);
+    height_spinbox->setValue(info.height);
+    connect(height_spinbox, SIGNAL(valueChanged(int)), this, SLOT(OnHeightChanged(int)));
+    QSpinBox* stride_spinbox = new QSpinBox;
+    stride_spinbox->setMaximum(65535 * 4);
+    stride_spinbox->setValue(info.stride);
+    connect(stride_spinbox, SIGNAL(valueChanged(int)), this, SLOT(OnStrideChanged(int)));
+    QVBoxLayout* main_layout = new QVBoxLayout;
+    main_layout->addWidget(image_widget);
+    {
+        QHBoxLayout* sub_layout = new QHBoxLayout;
+        sub_layout->addWidget(new QLabel(tr("Source Address:")));
+        sub_layout->addWidget(phys_address_spinbox);
+        main_layout->addLayout(sub_layout);
+    }
+    {
+        QHBoxLayout* sub_layout = new QHBoxLayout;
+        sub_layout->addWidget(new QLabel(tr("Format")));
+        sub_layout->addWidget(format_choice);
+        main_layout->addLayout(sub_layout);
+    }
+    {
+        QHBoxLayout* sub_layout = new QHBoxLayout;
+        sub_layout->addWidget(new QLabel(tr("Width:")));
+        sub_layout->addWidget(width_spinbox);
+        sub_layout->addStretch();
+        sub_layout->addWidget(new QLabel(tr("Height:")));
+        sub_layout->addWidget(height_spinbox);
+        sub_layout->addStretch();
+        sub_layout->addWidget(new QLabel(tr("Stride:")));
+        sub_layout->addWidget(stride_spinbox);
+        main_layout->addLayout(sub_layout);
+    }
+    main_widget->setLayout(main_layout);
+    emit UpdatePixmap(ReloadPixmap());
+    setWidget(main_widget);
+}
+void TextureInfoDockWidget::OnAddressChanged(qint64 value) {
+    info.address = value;
+    emit UpdatePixmap(ReloadPixmap());
+}
+void TextureInfoDockWidget::OnFormatChanged(int value) {
+    info.format = static_cast<Pica::Regs::TextureFormat>(value);
+    emit UpdatePixmap(ReloadPixmap());
+}
+void TextureInfoDockWidget::OnWidthChanged(int value) {
+    info.width = value;
+    emit UpdatePixmap(ReloadPixmap());
+}
+void TextureInfoDockWidget::OnHeightChanged(int value) {
+    info.height = value;
+    emit UpdatePixmap(ReloadPixmap());
+}
+void TextureInfoDockWidget::OnStrideChanged(int value) {
+    info.stride = value;
+    emit UpdatePixmap(ReloadPixmap());
 }
-int GPUCommandListModel::rowCount(const QModelIndex& parent) const
+QPixmap TextureInfoDockWidget::ReloadPixmap() const {
-{
+    u8* src = Memory::GetPointer(info.address);
+    return QPixmap::fromImage(LoadTexture(src, info));
+}
+GPUCommandListModel::GPUCommandListModel(QObject* parent) : QAbstractListModel(parent) {
+}
+int GPUCommandListModel::rowCount(const QModelIndex& parent) const {
    return pica_trace.writes.size();
 }
-int GPUCommandListModel::columnCount(const QModelIndex& parent) const
+int GPUCommandListModel::columnCount(const QModelIndex& parent) const {
-{
    return 2;
 }
-QVariant GPUCommandListModel::data(const QModelIndex& index, int role) const
+QVariant GPUCommandListModel::data(const QModelIndex& index, int role) const {
-{
    if (!index.isValid())
        return QVariant();
@@ -36,21 +177,39 @@ QVariant GPUCommandListModel::data(const QModelIndex& index, int role) const
    if (role == Qt::DisplayRole) {
        QString content;
        if (index.column() == 0) {
-            content = QString::fromLatin1(Pica::Regs::GetCommandName(cmd.cmd_id).c_str());
+            QString content = QString::fromLatin1(Pica::Regs::GetCommandName(cmd.cmd_id).c_str());
            content.append(" ");
+            return content;
        } else if (index.column() == 1) {
-            content.append(QString("%1 ").arg(cmd.hex, 8, 16, QLatin1Char('0')));
+            QString content = QString("%1 ").arg(cmd.hex, 8, 16, QLatin1Char('0'));
            content.append(QString("%1 ").arg(val, 8, 16, QLatin1Char('0')));
+            return content;
        }
+    } else if (role == CommandIdRole) {
+        return QVariant::fromValue<int>(cmd.cmd_id.Value());
+    }
-        return QVariant(content);
+    return QVariant();
+}
+QVariant GPUCommandListModel::headerData(int section, Qt::Orientation orientation, int role) const {
+    switch(role) {
+    case Qt::DisplayRole:
+    {
+        if (section == 0) {
+            return tr("Command Name");
+        } else if (section == 1) {
+            return tr("Data");
+        }
+        break;
+    }
    }
    return QVariant();
 }
-void GPUCommandListModel::OnPicaTraceFinished(const Pica::DebugUtils::PicaTrace& trace)
+void GPUCommandListModel::OnPicaTraceFinished(const Pica::DebugUtils::PicaTrace& trace) {
-{
    beginResetModel();
    pica_trace = trace;
@@ -58,38 +217,82 @@ void GPUCommandListModel::OnPicaTraceFinished(const Pica::DebugUtils::PicaTrace&
    endResetModel();
 }
+#define COMMAND_IN_RANGE(cmd_id, reg_name)   \
+    (cmd_id >= PICA_REG_INDEX(reg_name) &&   \
+     cmd_id < PICA_REG_INDEX(reg_name) + sizeof(decltype(Pica::registers.reg_name)) / 4)
+void GPUCommandListWidget::OnCommandDoubleClicked(const QModelIndex& index) {
+    const int command_id = list_widget->model()->data(index, GPUCommandListModel::CommandIdRole).toInt();
+    if (COMMAND_IN_RANGE(command_id, texture0)) {
+        auto info = Pica::DebugUtils::TextureInfo::FromPicaRegister(Pica::registers.texture0,
+                                                                    Pica::registers.texture0_format);
+        // TODO: Instead, emit a signal here to be caught by the main window widget.
+        auto main_window = static_cast<QMainWindow*>(parent());
+        main_window->tabifyDockWidget(this, new TextureInfoDockWidget(info, main_window));
+    }
+}
+void GPUCommandListWidget::SetCommandInfo(const QModelIndex& index) {
+    QWidget* new_info_widget;
+    const int command_id = list_widget->model()->data(index, GPUCommandListModel::CommandIdRole).toInt();
+    if (COMMAND_IN_RANGE(command_id, texture0)) {
+        u8* src = Memory::GetPointer(Pica::registers.texture0.GetPhysicalAddress());
+        auto info = Pica::DebugUtils::TextureInfo::FromPicaRegister(Pica::registers.texture0,
+                                                                    Pica::registers.texture0_format);
+        new_info_widget = new TextureInfoWidget(src, info);
+    } else {
+        new_info_widget = new QWidget;
+    }
+    widget()->layout()->removeWidget(command_info_widget);
+    delete command_info_widget;
+    widget()->layout()->addWidget(new_info_widget);
+    command_info_widget = new_info_widget;
+}
+#undef COMMAND_IN_RANGE
-GPUCommandListWidget::GPUCommandListWidget(QWidget* parent) : QDockWidget(tr("Pica Command List"), parent)
+GPUCommandListWidget::GPUCommandListWidget(QWidget* parent) : QDockWidget(tr("Pica Command List"), parent) {
-{
+    setObjectName("Pica Command List");
    GPUCommandListModel* model = new GPUCommandListModel(this);
    QWidget* main_widget = new QWidget;
-    QTreeView* list_widget = new QTreeView;
+    list_widget = new QTreeView;
    list_widget->setModel(model);
    list_widget->setFont(QFont("monospace"));
    list_widget->setRootIsDecorated(false);
-    QPushButton* toggle_tracing = new QPushButton(tr("Start Tracing"));
+    connect(list_widget->selectionModel(), SIGNAL(currentChanged(const QModelIndex&,const QModelIndex&)),
+            this, SLOT(SetCommandInfo(const QModelIndex&)));
+    connect(list_widget, SIGNAL(doubleClicked(const QModelIndex&)),
+            this, SLOT(OnCommandDoubleClicked(const QModelIndex&)));
+    toggle_tracing = new QPushButton(tr("Start Tracing"));
    connect(toggle_tracing, SIGNAL(clicked()), this, SLOT(OnToggleTracing()));
    connect(this, SIGNAL(TracingFinished(const Pica::DebugUtils::PicaTrace&)),
            model, SLOT(OnPicaTraceFinished(const Pica::DebugUtils::PicaTrace&)));
+    command_info_widget = new QWidget;
    QVBoxLayout* main_layout = new QVBoxLayout;
    main_layout->addWidget(list_widget);
    main_layout->addWidget(toggle_tracing);
+    main_layout->addWidget(command_info_widget);
    main_widget->setLayout(main_layout);
    setWidget(main_widget);
 }
-void GPUCommandListWidget::OnToggleTracing()
+void GPUCommandListWidget::OnToggleTracing() {
-{
    if (!Pica::DebugUtils::IsPicaTracing()) {
        Pica::DebugUtils::StartPicaTracing();
+        toggle_tracing->setText(tr("Finish Tracing"));
    } else {
        pica_trace = Pica::DebugUtils::FinishPicaTracing();
        emit TracingFinished(*pica_trace);
+        toggle_tracing->setText(tr("Start Tracing"));
    }
 }
diff --git a/src/citra_qt/debugger/graphics_cmdlists.hxx b/src/citra_qt/debugger/graphics_cmdlists.hxx
index 1523e724f..a459bba64 100644
--- a/src/citra_qt/debugger/graphics_cmdlists.hxx
+++ b/src/citra_qt/debugger/graphics_cmdlists.hxx
@@ -10,16 +10,24 @@
 #include "video_core/gpu_debugger.h"
 #include "video_core/debug_utils/debug_utils.h"
+class QPushButton;
+class QTreeView;
 class GPUCommandListModel : public QAbstractListModel
 {
    Q_OBJECT
 public:
+    enum {
+        CommandIdRole = Qt::UserRole,
+    };
    GPUCommandListModel(QObject* parent);
    int columnCount(const QModelIndex& parent = QModelIndex()) const override;
    int rowCount(const QModelIndex& parent = QModelIndex()) const override;
    QVariant data(const QModelIndex& index, int role = Qt::DisplayRole) const override;
+    QVariant headerData(int section, Qt::Orientation orientation, int role = Qt::DisplayRole) const override;
 public slots:
    void OnPicaTraceFinished(const Pica::DebugUtils::PicaTrace& trace);
@@ -37,10 +45,39 @@ public:
 public slots:
    void OnToggleTracing();
+    void OnCommandDoubleClicked(const QModelIndex&);
+    void SetCommandInfo(const QModelIndex&);
 signals:
    void TracingFinished(const Pica::DebugUtils::PicaTrace&);
 private:
    std::unique_ptr<Pica::DebugUtils::PicaTrace> pica_trace;
+    QTreeView* list_widget;
+    QWidget* command_info_widget;
+    QPushButton* toggle_tracing;
+};
+class TextureInfoDockWidget : public QDockWidget {
+    Q_OBJECT
+public:
+    TextureInfoDockWidget(const Pica::DebugUtils::TextureInfo& info, QWidget* parent = nullptr);
+signals:
+    void UpdatePixmap(const QPixmap& pixmap);
+private slots:
+    void OnAddressChanged(qint64 value);
+    void OnFormatChanged(int value);
+    void OnWidthChanged(int value);
+    void OnHeightChanged(int value);
+    void OnStrideChanged(int value);
+private:
+    QPixmap ReloadPixmap() const;
+    Pica::DebugUtils::TextureInfo info;
 };
diff --git a/src/citra_qt/debugger/graphics_framebuffer.cpp b/src/citra_qt/debugger/graphics_framebuffer.cpp
new file mode 100644
index 000000000..ac47f298d
--- /dev/null
+++ b/src/citra_qt/debugger/graphics_framebuffer.cpp
@@ -0,0 +1,282 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2
+// Refer to the license.txt file included.
+#include <QBoxLayout>
+#include <QComboBox>
+#include <QDebug>
+#include <QLabel>
+#include <QMetaType>
+#include <QPushButton>
+#include <QSpinBox>
+#include "video_core/pica.h"
+#include "graphics_framebuffer.hxx"
+#include "util/spinbox.hxx"
+BreakPointObserverDock::BreakPointObserverDock(std::shared_ptr<Pica::DebugContext> debug_context,
+                                               const QString& title, QWidget* parent)
+    : QDockWidget(title, parent), BreakPointObserver(debug_context)
+{
+    qRegisterMetaType<Pica::DebugContext::Event>("Pica::DebugContext::Event");
+    connect(this, SIGNAL(Resumed()), this, SLOT(OnResumed()));
+    // NOTE: This signal is emitted from a non-GUI thread, but connect() takes
+    //       care of delaying its handling to the GUI thread.
+    connect(this, SIGNAL(BreakPointHit(Pica::DebugContext::Event,void*)),
+            this, SLOT(OnBreakPointHit(Pica::DebugContext::Event,void*)),
+            Qt::BlockingQueuedConnection);
+}
+void BreakPointObserverDock::OnPicaBreakPointHit(Pica::DebugContext::Event event, void* data)
+{
+    emit BreakPointHit(event, data);
+}
+void BreakPointObserverDock::OnPicaResume()
+{
+    emit Resumed();
+}
+GraphicsFramebufferWidget::GraphicsFramebufferWidget(std::shared_ptr<Pica::DebugContext> debug_context,
+                                                     QWidget* parent)
+    : BreakPointObserverDock(debug_context, tr("Pica Framebuffer"), parent),
+      framebuffer_source(Source::PicaTarget)
+{
+    setObjectName("PicaFramebuffer");
+    framebuffer_source_list = new QComboBox;
+    framebuffer_source_list->addItem(tr("Active Render Target"));
+    framebuffer_source_list->addItem(tr("Custom"));
+    framebuffer_source_list->setCurrentIndex(static_cast<int>(framebuffer_source));
+    framebuffer_address_control = new CSpinBox;
+    framebuffer_address_control->SetBase(16);
+    framebuffer_address_control->SetRange(0, 0xFFFFFFFF);
+    framebuffer_address_control->SetPrefix("0x");
+    framebuffer_width_control = new QSpinBox;
+    framebuffer_width_control->setMinimum(1);
+    framebuffer_width_control->setMaximum(std::numeric_limits<int>::max()); // TODO: Find actual maximum
+    framebuffer_height_control = new QSpinBox;
+    framebuffer_height_control->setMinimum(1);
+    framebuffer_height_control->setMaximum(std::numeric_limits<int>::max()); // TODO: Find actual maximum
+    framebuffer_format_control = new QComboBox;
+    framebuffer_format_control->addItem(tr("RGBA8"));
+    framebuffer_format_control->addItem(tr("RGB8"));
+    framebuffer_format_control->addItem(tr("RGBA5551"));
+    framebuffer_format_control->addItem(tr("RGB565"));
+    framebuffer_format_control->addItem(tr("RGBA4"));
+    // TODO: This QLabel should shrink the image to the available space rather than just expanding...
+    framebuffer_picture_label = new QLabel;
+    auto enlarge_button = new QPushButton(tr("Enlarge"));
+    // Connections
+    connect(this, SIGNAL(Update()), this, SLOT(OnUpdate()));
+    connect(framebuffer_source_list, SIGNAL(currentIndexChanged(int)), this, SLOT(OnFramebufferSourceChanged(int)));
+    connect(framebuffer_address_control, SIGNAL(ValueChanged(qint64)), this, SLOT(OnFramebufferAddressChanged(qint64)));
+    connect(framebuffer_width_control, SIGNAL(valueChanged(int)), this, SLOT(OnFramebufferWidthChanged(int)));
+    connect(framebuffer_height_control, SIGNAL(valueChanged(int)), this, SLOT(OnFramebufferHeightChanged(int)));
+    connect(framebuffer_format_control, SIGNAL(currentIndexChanged(int)), this, SLOT(OnFramebufferFormatChanged(int)));
+    auto main_widget = new QWidget;
+    auto main_layout = new QVBoxLayout;
+    {
+        auto sub_layout = new QHBoxLayout;
+        sub_layout->addWidget(new QLabel(tr("Source:")));
+        sub_layout->addWidget(framebuffer_source_list);
+        main_layout->addLayout(sub_layout);
+    }
+    {
+        auto sub_layout = new QHBoxLayout;
+        sub_layout->addWidget(new QLabel(tr("Virtual Address:")));
+        sub_layout->addWidget(framebuffer_address_control);
+        main_layout->addLayout(sub_layout);
+    }
+    {
+        auto sub_layout = new QHBoxLayout;
+        sub_layout->addWidget(new QLabel(tr("Width:")));
+        sub_layout->addWidget(framebuffer_width_control);
+        main_layout->addLayout(sub_layout);
+    }
+    {
+        auto sub_layout = new QHBoxLayout;
+        sub_layout->addWidget(new QLabel(tr("Height:")));
+        sub_layout->addWidget(framebuffer_height_control);
+        main_layout->addLayout(sub_layout);
+    }
+    {
+        auto sub_layout = new QHBoxLayout;
+        sub_layout->addWidget(new QLabel(tr("Format:")));
+        sub_layout->addWidget(framebuffer_format_control);
+        main_layout->addLayout(sub_layout);
+    }
+    main_layout->addWidget(framebuffer_picture_label);
+    main_layout->addWidget(enlarge_button);
+    main_widget->setLayout(main_layout);
+    setWidget(main_widget);
+    // Load current data - TODO: Make sure this works when emulation is not running
+    emit Update();
+    widget()->setEnabled(false); // TODO: Only enable if currently at breakpoint
+}
+void GraphicsFramebufferWidget::OnBreakPointHit(Pica::DebugContext::Event event, void* data)
+{
+    emit Update();
+    widget()->setEnabled(true);
+}
+void GraphicsFramebufferWidget::OnResumed()
+{
+    widget()->setEnabled(false);
+}
+void GraphicsFramebufferWidget::OnFramebufferSourceChanged(int new_value)
+{
+    framebuffer_source = static_cast<Source>(new_value);
+    emit Update();
+}
+void GraphicsFramebufferWidget::OnFramebufferAddressChanged(qint64 new_value)
+{
+    if (framebuffer_address != new_value) {
+        framebuffer_address = static_cast<unsigned>(new_value);
+        framebuffer_source_list->setCurrentIndex(static_cast<int>(Source::Custom));
+        emit Update();
+    }
+}
+void GraphicsFramebufferWidget::OnFramebufferWidthChanged(int new_value)
+{
+    if (framebuffer_width != new_value) {
+        framebuffer_width = new_value;
+        framebuffer_source_list->setCurrentIndex(static_cast<int>(Source::Custom));
+        emit Update();
+    }
+}
+void GraphicsFramebufferWidget::OnFramebufferHeightChanged(int new_value)
+{
+    if (framebuffer_height != new_value) {
+        framebuffer_height = new_value;
+        framebuffer_source_list->setCurrentIndex(static_cast<int>(Source::Custom));
+        emit Update();
+    }
+}
+void GraphicsFramebufferWidget::OnFramebufferFormatChanged(int new_value)
+{
+    if (framebuffer_format != static_cast<Format>(new_value)) {
+        framebuffer_format = static_cast<Format>(new_value);
+        framebuffer_source_list->setCurrentIndex(static_cast<int>(Source::Custom));
+        emit Update();
+    }
+}
+void GraphicsFramebufferWidget::OnUpdate()
+{
+    QPixmap pixmap;
+    switch (framebuffer_source) {
+    case Source::PicaTarget:
+    {
+        // TODO: Store a reference to the registers in the debug context instead of accessing them directly...
+        auto framebuffer = Pica::registers.framebuffer;
+        using Framebuffer = decltype(framebuffer);
+        framebuffer_address = framebuffer.GetColorBufferAddress();
+        framebuffer_width = framebuffer.GetWidth();
+        framebuffer_height = framebuffer.GetHeight();
+        framebuffer_format = static_cast<Format>(framebuffer.color_format);
+        break;
+    }
+    case Source::Custom:
+    {
+        // Keep user-specified values
+        break;
+    }
+    default:
+        qDebug() << "Unknown framebuffer source " << static_cast<int>(framebuffer_source);
+        break;
+    }
+    // TODO: Implement a good way to visualize alpha components!
+    // TODO: Unify this decoding code with the texture decoder
+    switch (framebuffer_format) {
+    case Format::RGBA8:
+    {
+        QImage decoded_image(framebuffer_width, framebuffer_height, QImage::Format_ARGB32);
+        u32* color_buffer = (u32*)Memory::GetPointer(framebuffer_address);
+        for (int y = 0; y < framebuffer_height; ++y) {
+            for (int x = 0; x < framebuffer_width; ++x) {
+                u32 value = *(color_buffer + x + y * framebuffer_width);
+                decoded_image.setPixel(x, y, qRgba((value >> 16) & 0xFF, (value >> 8) & 0xFF, value & 0xFF, 255/*value >> 24*/));
+            }
+        }
+        pixmap = QPixmap::fromImage(decoded_image);
+        break;
+    }
+    case Format::RGB8:
+    {
+        QImage decoded_image(framebuffer_width, framebuffer_height, QImage::Format_ARGB32);
+        u8* color_buffer = Memory::GetPointer(framebuffer_address);
+        for (int y = 0; y < framebuffer_height; ++y) {
+            for (int x = 0; x < framebuffer_width; ++x) {
+                u8* pixel_pointer = color_buffer + x * 3 + y * 3 * framebuffer_width;
+                decoded_image.setPixel(x, y, qRgba(pixel_pointer[0], pixel_pointer[1], pixel_pointer[2], 255/*value >> 24*/));
+            }
+        }
+        pixmap = QPixmap::fromImage(decoded_image);
+        break;
+    }
+    case Format::RGBA5551:
+    {
+        QImage decoded_image(framebuffer_width, framebuffer_height, QImage::Format_ARGB32);
+        u32* color_buffer = (u32*)Memory::GetPointer(framebuffer_address);
+        for (int y = 0; y < framebuffer_height; ++y) {
+            for (int x = 0; x < framebuffer_width; ++x) {
+                u16 value = *(u16*)(((u8*)color_buffer) + x * 2 + y * framebuffer_width * 2);
+                u8 r = (value >> 11) & 0x1F;
+                u8 g = (value >> 6) & 0x1F;
+                u8 b = (value >> 1) & 0x1F;
+                u8 a = value & 1;
+                decoded_image.setPixel(x, y, qRgba(r, g, b, 255/*a*/));
+            }
+        }
+        pixmap = QPixmap::fromImage(decoded_image);
+        break;
+    }
+    default:
+        qDebug() << "Unknown fb color format " << static_cast<int>(framebuffer_format);
+        break;
+    }
+    framebuffer_address_control->SetValue(framebuffer_address);
+    framebuffer_width_control->setValue(framebuffer_width);
+    framebuffer_height_control->setValue(framebuffer_height);
+    framebuffer_format_control->setCurrentIndex(static_cast<int>(framebuffer_format));
+    framebuffer_picture_label->setPixmap(pixmap);
+}
diff --git a/src/citra_qt/debugger/graphics_framebuffer.hxx b/src/citra_qt/debugger/graphics_framebuffer.hxx
new file mode 100644
index 000000000..1151ee7a1
--- /dev/null
+++ b/src/citra_qt/debugger/graphics_framebuffer.hxx
@@ -0,0 +1,92 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2
+// Refer to the license.txt file included.
+#pragma once
+#include <QDockWidget>
+#include "video_core/debug_utils/debug_utils.h"
+class QComboBox;
+class QLabel;
+class QSpinBox;
+class CSpinBox;
+// Utility class which forwards calls to OnPicaBreakPointHit and OnPicaResume to public slots.
+// This is because the Pica breakpoint callbacks are called from a non-GUI thread, while
+// the widget usually wants to perform reactions in the GUI thread.
+class BreakPointObserverDock : public QDockWidget, Pica::DebugContext::BreakPointObserver {
+    Q_OBJECT
+public:
+    BreakPointObserverDock(std::shared_ptr<Pica::DebugContext> debug_context, const QString& title,
+                           QWidget* parent = nullptr);
+    void OnPicaBreakPointHit(Pica::DebugContext::Event event, void* data) override;
+    void OnPicaResume() override;
+private slots:
+    virtual void OnBreakPointHit(Pica::DebugContext::Event event, void* data) = 0;
+    virtual void OnResumed() = 0;
+signals:
+    void Resumed();
+    void BreakPointHit(Pica::DebugContext::Event event, void* data);
+};
+class GraphicsFramebufferWidget : public BreakPointObserverDock {
+    Q_OBJECT
+    using Event = Pica::DebugContext::Event;
+    enum class Source {
+        PicaTarget = 0,
+        Custom = 1,
+        // TODO: Add GPU framebuffer sources!
+    };
+    enum class Format {
+        RGBA8    = 0,
+        RGB8     = 1,
+        RGBA5551 = 2,
+        RGB565   = 3,
+        RGBA4    = 4,
+    };
+public:
+    GraphicsFramebufferWidget(std::shared_ptr<Pica::DebugContext> debug_context, QWidget* parent = nullptr);
+public slots:
+    void OnFramebufferSourceChanged(int new_value);
+    void OnFramebufferAddressChanged(qint64 new_value);
+    void OnFramebufferWidthChanged(int new_value);
+    void OnFramebufferHeightChanged(int new_value);
+    void OnFramebufferFormatChanged(int new_value);
+    void OnUpdate();
+private slots:
+    void OnBreakPointHit(Pica::DebugContext::Event event, void* data) override;
+    void OnResumed() override;
+signals:
+    void Update();
+private:
+    QComboBox* framebuffer_source_list;
+    CSpinBox* framebuffer_address_control;
+    QSpinBox* framebuffer_width_control;
+    QSpinBox* framebuffer_height_control;
+    QComboBox* framebuffer_format_control;
+    QLabel* framebuffer_picture_label;
+    Source framebuffer_source;
+    unsigned framebuffer_address;
+    unsigned framebuffer_width;
+    unsigned framebuffer_height;
+    Format framebuffer_format;
+};
diff --git a/src/citra_qt/debugger/registers.cpp b/src/citra_qt/debugger/registers.cpp
index 96ceed480..ed17ee4b4 100644
--- a/src/citra_qt/debugger/registers.cpp
+++ b/src/citra_qt/debugger/registers.cpp
@@ -46,18 +46,18 @@ void RegistersWidget::OnCPUStepped()
    CSPR->setText(1, QString("0x%1").arg(app_core->GetCPSR(), 8, 16, QLatin1Char('0')));
    CSPR->child(0)->setText(1, QString("b%1").arg(app_core->GetCPSR() & 0x1F, 5, 2, QLatin1Char('0'))); // M - Mode
-    CSPR->child(1)->setText(1, QString("%1").arg((app_core->GetCPSR() >> 5) & 0x1));    // T - State
+    CSPR->child(1)->setText(1, QString("%1").arg((app_core->GetCPSR() >> 5) & 0x1));    // T - State
-    CSPR->child(2)->setText(1, QString("%1").arg((app_core->GetCPSR() >> 6) & 0x1));    // F - FIQ disable
+    CSPR->child(2)->setText(1, QString("%1").arg((app_core->GetCPSR() >> 6) & 0x1));    // F - FIQ disable
-    CSPR->child(3)->setText(1, QString("%1").arg((app_core->GetCPSR() >> 7) & 0x1));    // I - IRQ disable
+    CSPR->child(3)->setText(1, QString("%1").arg((app_core->GetCPSR() >> 7) & 0x1));    // I - IRQ disable
-    CSPR->child(4)->setText(1, QString("%1").arg((app_core->GetCPSR() >> 8) & 0x1));    // A - Imprecise abort
+    CSPR->child(4)->setText(1, QString("%1").arg((app_core->GetCPSR() >> 8) & 0x1));    // A - Imprecise abort
-    CSPR->child(5)->setText(1, QString("%1").arg((app_core->GetCPSR() >> 9) & 0x1));    // E - Data endianess
+    CSPR->child(5)->setText(1, QString("%1").arg((app_core->GetCPSR() >> 9) & 0x1));    // E - Data endianess
-    CSPR->child(6)->setText(1, QString("%1").arg((app_core->GetCPSR() >> 10) & 0x3F));  // IT - If-Then state (DNM)
+    CSPR->child(6)->setText(1, QString("%1").arg((app_core->GetCPSR() >> 10) & 0x3F));  // IT - If-Then state (DNM)
-    CSPR->child(7)->setText(1, QString("%1").arg((app_core->GetCPSR() >> 16) & 0xF));   // GE - Greater-than-or-Equal
+    CSPR->child(7)->setText(1, QString("%1").arg((app_core->GetCPSR() >> 16) & 0xF));   // GE - Greater-than-or-Equal
-    CSPR->child(8)->setText(1, QString("%1").arg((app_core->GetCPSR() >> 20) & 0xF));   // DNM - Do not modify
+    CSPR->child(8)->setText(1, QString("%1").arg((app_core->GetCPSR() >> 20) & 0xF));   // DNM - Do not modify
-    CSPR->child(9)->setText(1, QString("%1").arg((app_core->GetCPSR() >> 24) & 0x1));   // J - Java state
+    CSPR->child(9)->setText(1, QString("%1").arg((app_core->GetCPSR() >> 24) & 0x1));   // J - Java state
-    CSPR->child(10)->setText(1, QString("%1").arg((app_core->GetCPSR() >> 27) & 0x1));  // Q - Sticky overflow
+    CSPR->child(10)->setText(1, QString("%1").arg((app_core->GetCPSR() >> 27) & 0x1));  // Q - Sticky overflow
-    CSPR->child(11)->setText(1, QString("%1").arg((app_core->GetCPSR() >> 28) & 0x1));  // V - Overflow
+    CSPR->child(11)->setText(1, QString("%1").arg((app_core->GetCPSR() >> 28) & 0x1));  // V - Overflow
-    CSPR->child(12)->setText(1, QString("%1").arg((app_core->GetCPSR() >> 29) & 0x1));  // C - Carry/Borrow/Extend
+    CSPR->child(12)->setText(1, QString("%1").arg((app_core->GetCPSR() >> 29) & 0x1));  // C - Carry/Borrow/Extend
-    CSPR->child(13)->setText(1, QString("%1").arg((app_core->GetCPSR() >> 30) & 0x1));  // Z - Zero
+    CSPR->child(13)->setText(1, QString("%1").arg((app_core->GetCPSR() >> 30) & 0x1));  // Z - Zero
-    CSPR->child(14)->setText(1, QString("%1").arg((app_core->GetCPSR() >> 31) & 0x1));  // N - Negative/Less than
+    CSPR->child(14)->setText(1, QString("%1").arg((app_core->GetCPSR() >> 31) & 0x1));  // N - Negative/Less than
 }
diff --git a/src/citra_qt/debugger/registers.hxx b/src/citra_qt/debugger/registers.hxx
index 9645feb2a..4cca957ce 100644
--- a/src/citra_qt/debugger/registers.hxx
+++ b/src/citra_qt/debugger/registers.hxx
@@ -16,10 +16,10 @@ public slots:
    void OnCPUStepped();
 private:
-        Ui::ARMRegisters cpu_regs_ui;
+    Ui::ARMRegisters cpu_regs_ui;
-        QTreeWidget* tree;
+    QTreeWidget* tree;
-    
-        QTreeWidgetItem* registers;
+    QTreeWidgetItem* registers;
-        QTreeWidgetItem* CSPR;
+    QTreeWidgetItem* CSPR;
 };
diff --git a/src/citra_qt/hotkeys.cpp b/src/citra_qt/hotkeys.cpp
index bbaa4a8dc..5d0b52e4f 100644
--- a/src/citra_qt/hotkeys.cpp
+++ b/src/citra_qt/hotkeys.cpp
@@ -5,7 +5,7 @@
 struct Hotkey
 {
-    Hotkey() : shortcut(NULL), context(Qt::WindowShortcut) {}
+    Hotkey() : shortcut(nullptr), context(Qt::WindowShortcut) {}
    QKeySequence keyseq;
    QShortcut* shortcut;
@@ -81,7 +81,7 @@ QShortcut* GetHotkey(const QString& group, const QString& action, QWidget* widge
    Hotkey& hk = hotkey_groups[group][action];
    if (!hk.shortcut)
-        hk.shortcut = new QShortcut(hk.keyseq, widget, NULL, NULL, hk.context);
+        hk.shortcut = new QShortcut(hk.keyseq, widget, nullptr, nullptr, hk.context);
    return hk.shortcut;
 }
diff --git a/src/citra_qt/main.cpp b/src/citra_qt/main.cpp
index 304c169b9..23d4925b8 100644
--- a/src/citra_qt/main.cpp
+++ b/src/citra_qt/main.cpp
@@ -1,3 +1,5 @@
+#include <thread>
 #include <QtGui>
 #include <QDesktopWidget>
 #include <QFileDialog>
@@ -5,8 +7,13 @@
 #include "main.hxx"
 #include "common/common.h"
+#include "common/logging/text_formatter.h"
+#include "common/logging/log.h"
+#include "common/logging/backend.h"
+#include "common/logging/filter.h"
 #include "common/platform.h"
-#include "common/log_manager.h"
+#include "common/scope_exit.h"
 #if EMU_PLATFORM == PLATFORM_LINUX
 #include <unistd.h>
 #endif
@@ -20,8 +27,11 @@
 #include "debugger/callstack.hxx"
 #include "debugger/ramview.hxx"
 #include "debugger/graphics.hxx"
+#include "debugger/graphics_breakpoints.hxx"
 #include "debugger/graphics_cmdlists.hxx"
+#include "debugger/graphics_framebuffer.hxx"
+#include "core/settings.h"
 #include "core/system.h"
 #include "core/core.h"
 #include "core/loader/loader.h"
@@ -30,10 +40,10 @@
 #include "version.h"
 GMainWindow::GMainWindow()
 {
-    LogManager::Init();
+    Pica::g_debug_context = Pica::DebugContext::Construct();
    Config config;
    ui.setupUi(this);
@@ -62,12 +72,22 @@ GMainWindow::GMainWindow()
    addDockWidget(Qt::RightDockWidgetArea, graphicsCommandsWidget);
    graphicsCommandsWidget->hide();
+    auto graphicsBreakpointsWidget = new GraphicsBreakPointsWidget(Pica::g_debug_context, this);
+    addDockWidget(Qt::RightDockWidgetArea, graphicsBreakpointsWidget);
+    graphicsBreakpointsWidget->hide();
+    auto graphicsFramebufferWidget = new GraphicsFramebufferWidget(Pica::g_debug_context, this);
+    addDockWidget(Qt::RightDockWidgetArea, graphicsFramebufferWidget);
+    graphicsFramebufferWidget->hide();
    QMenu* debug_menu = ui.menu_View->addMenu(tr("Debugging"));
    debug_menu->addAction(disasmWidget->toggleViewAction());
    debug_menu->addAction(registersWidget->toggleViewAction());
    debug_menu->addAction(callstackWidget->toggleViewAction());
    debug_menu->addAction(graphicsWidget->toggleViewAction());
    debug_menu->addAction(graphicsCommandsWidget->toggleViewAction());
+    debug_menu->addAction(graphicsBreakpointsWidget->toggleViewAction());
+    debug_menu->addAction(graphicsFramebufferWidget->toggleViewAction());
    // Set default UI state
    // geometry: 55% of the window contents are in the upper screen half, 45% in the lower half
@@ -112,7 +132,8 @@ GMainWindow::GMainWindow()
    connect(GetHotkey("Main Window", "Load File", this), SIGNAL(activated()), this, SLOT(OnMenuLoadFile()));
    connect(GetHotkey("Main Window", "Start Emulation", this), SIGNAL(activated()), this, SLOT(OnStartGame()));
-    setWindowTitle(render_window->GetWindowTitle().c_str());
+    std::string window_title = Common::StringFromFormat("Citra | %s-%s", Common::g_scm_branch, Common::g_scm_desc);
+    setWindowTitle(window_title.c_str());
    show();
@@ -125,24 +146,20 @@ GMainWindow::GMainWindow()
 GMainWindow::~GMainWindow()
 {
    // will get automatically deleted otherwise
-    if (render_window->parent() == NULL)
+    if (render_window->parent() == nullptr)
        delete render_window;
+    Pica::g_debug_context.reset();
 }
 void GMainWindow::BootGame(std::string filename)
 {
-    NOTICE_LOG(MASTER_LOG, "Citra starting...\n");
+    LOG_INFO(Frontend, "Citra starting...\n");
    System::Init(render_window);
-    if (Core::Init()) {
-        ERROR_LOG(MASTER_LOG, "Core initialization failed, exiting...");
-        Core::Stop();
-        exit(1);
-    }
    // Load a game or die...
    if (Loader::ResultStatus::Success != Loader::LoadFile(filename)) {
-        ERROR_LOG(BOOT, "Failed to load ROM!");
+        LOG_CRITICAL(Frontend, "Failed to load ROM!");
    }
    disasmWidget->Init();
@@ -158,7 +175,7 @@ void GMainWindow::BootGame(std::string filename)
 void GMainWindow::OnMenuLoadFile()
 {
-    QString filename = QFileDialog::getOpenFileName(this, tr("Load file"), QString(), tr("3DS executable (*.elf *.axf *.bin *.cci *.cxi)"));
+    QString filename = QFileDialog::getOpenFileName(this, tr("Load file"), QString(), tr("3DS executable (*.3dsx *.elf *.axf *.bin *.cci *.cxi)"));
    if (filename.size())
       BootGame(filename.toLatin1().data());
 }
@@ -207,14 +224,14 @@ void GMainWindow::OnOpenHotkeysDialog()
 void GMainWindow::ToggleWindowMode()
 {
    bool enable = ui.action_Popout_Window_Mode->isChecked();
-    if (enable && render_window->parent() != NULL)
+    if (enable && render_window->parent() != nullptr)
    {
        ui.horizontalLayout->removeWidget(render_window);
-        render_window->setParent(NULL);
+        render_window->setParent(nullptr);
        render_window->setVisible(true);
        render_window->RestoreGeometry();
    }
-    else if (!enable && render_window->parent() == NULL)
+    else if (!enable && render_window->parent() == nullptr)
    {
        render_window->BackupGeometry();
        ui.horizontalLayout->addWidget(render_window);
@@ -249,9 +266,21 @@ void GMainWindow::closeEvent(QCloseEvent* event)
 int __cdecl main(int argc, char* argv[])
 {
+    std::shared_ptr<Log::Logger> logger = Log::InitGlobalLogger();
+    Log::Filter log_filter(Log::Level::Info);
+    std::thread logging_thread(Log::TextLoggingLoop, logger, &log_filter);
+    SCOPE_EXIT({
+        logger->Close();
+        logging_thread.join();
+    });
    QApplication::setAttribute(Qt::AA_X11InitThreads);
    QApplication app(argc, argv);
    GMainWindow main_window;
+    // After settings have been loaded by GMainWindow, apply the filter
+    log_filter.ParseFilterString(Settings::values.log_filter);
    main_window.show();
    return app.exec();
 }
diff --git a/src/citra_qt/util/spinbox.cpp b/src/citra_qt/util/spinbox.cpp
new file mode 100644
index 000000000..9672168f5
--- /dev/null
+++ b/src/citra_qt/util/spinbox.cpp
@@ -0,0 +1,303 @@
+// Licensed under GPLv2+
+// Refer to the license.txt file included.
+// Copyright 2014 Tony Wasserka
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are met:
+//
+//     * Redistributions of source code must retain the above copyright
+//       notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above copyright
+//       notice, this list of conditions and the following disclaimer in the
+//       documentation and/or other materials provided with the distribution.
+//     * Neither the name of the owner nor the names of its contributors may
+//       be used to endorse or promote products derived from this software
+//       without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+#include <QLineEdit>
+#include <QRegExpValidator>
+#include "common/log.h"
+#include "spinbox.hxx"
+CSpinBox::CSpinBox(QWidget* parent) : QAbstractSpinBox(parent), base(10), min_value(-100), max_value(100), value(0), num_digits(0)
+{
+    // TODO: Might be nice to not immediately call the slot.
+    //       Think of an address that is being replaced by a different one, in which case a lot
+    //       invalid intermediate addresses would be read from during editing.
+    connect(lineEdit(), SIGNAL(textEdited(QString)), this, SLOT(OnEditingFinished()));
+    UpdateText();
+}
+void CSpinBox::SetValue(qint64 val)
+{
+    auto old_value = value;
+    value = std::max(std::min(val, max_value), min_value);
+    if (old_value != value) {
+        UpdateText();
+        emit ValueChanged(value);
+    }
+}
+void CSpinBox::SetRange(qint64 min, qint64 max)
+{
+    min_value = min;
+    max_value = max;
+    SetValue(value);
+    UpdateText();
+}
+void CSpinBox::stepBy(int steps)
+{
+    auto new_value = value;
+    // Scale number of steps by the currently selected digit
+    // TODO: Move this code elsewhere and enable it.
+    // TODO: Support for num_digits==0, too
+    // TODO: Support base!=16, too
+    // TODO: Make the cursor not jump back to the end of the line...
+    /*if (base == 16 && num_digits > 0) {
+        int digit = num_digits - (lineEdit()->cursorPosition() - prefix.length()) - 1;
+        digit = std::max(0, std::min(digit, num_digits - 1));
+        steps <<= digit * 4;
+    }*/
+    // Increment "new_value" by "steps", and perform annoying overflow checks, too.
+    if (steps < 0 && new_value + steps > new_value) {
+        new_value = std::numeric_limits<qint64>::min();
+    } else if (steps > 0 && new_value + steps < new_value) {
+        new_value = std::numeric_limits<qint64>::max();
+    } else {
+        new_value += steps;
+    }
+    SetValue(new_value);
+    UpdateText();
+}
+QAbstractSpinBox::StepEnabled CSpinBox::stepEnabled() const
+{
+    StepEnabled ret = StepNone;
+    if (value > min_value)
+        ret |= StepDownEnabled;
+    if (value < max_value)
+        ret |= StepUpEnabled;
+    return ret;
+}
+void CSpinBox::SetBase(int base)
+{
+    this->base = base;
+    UpdateText();
+}
+void CSpinBox::SetNumDigits(int num_digits)
+{
+    this->num_digits = num_digits;
+    UpdateText();
+}
+void CSpinBox::SetPrefix(const QString& prefix)
+{
+    this->prefix = prefix;
+    UpdateText();
+}
+void CSpinBox::SetSuffix(const QString& suffix)
+{
+    this->suffix = suffix;
+    UpdateText();
+}
+static QString StringToInputMask(const QString& input) {
+    QString mask = input;
+    // ... replace any special characters by their escaped counterparts ...
+    mask.replace("\\", "\\\\");
+    mask.replace("A", "\\A");
+    mask.replace("a", "\\a");
+    mask.replace("N", "\\N");
+    mask.replace("n", "\\n");
+    mask.replace("X", "\\X");
+    mask.replace("x", "\\x");
+    mask.replace("9", "\\9");
+    mask.replace("0", "\\0");
+    mask.replace("D", "\\D");
+    mask.replace("d", "\\d");
+    mask.replace("#", "\\#");
+    mask.replace("H", "\\H");
+    mask.replace("h", "\\h");
+    mask.replace("B", "\\B");
+    mask.replace("b", "\\b");
+    mask.replace(">", "\\>");
+    mask.replace("<", "\\<");
+    mask.replace("!", "\\!");
+    return mask;
+}
+void CSpinBox::UpdateText()
+{
+    // If a fixed number of digits is used, we put the line edit in insertion mode by setting an
+    // input mask.
+    QString mask;
+    if (num_digits != 0) {
+        mask += StringToInputMask(prefix);
+        // For base 10 and negative range, demand a single sign character
+        if (HasSign())
+            mask += "X"; // identified as "-" or "+" in the validator
+        // Uppercase digits greater than 9.
+        mask += ">";
+        // The greatest signed 64-bit number has 19 decimal digits.
+        // TODO: Could probably make this more generic with some logarithms.
+        // For reference, unsigned 64-bit can have up to 20 decimal digits.
+        int digits = (num_digits != 0) ? num_digits
+                     : (base == 16) ? 16
+                     : (base == 10) ? 19
+                     : 0xFF; // fallback case...
+        // Match num_digits digits
+        // Digits irrelevant to the chosen number base are filtered in the validator
+        mask += QString("H").repeated(std::max(num_digits, 1));
+        // Switch off case conversion
+        mask += "!";
+        mask += StringToInputMask(suffix);
+    }
+    lineEdit()->setInputMask(mask);
+    // Set new text without changing the cursor position. This will cause the cursor to briefly
+    // appear at the end of the line and then to jump back to its original position. That's
+    // a bit ugly, but better than having setText() move the cursor permanently all the time.
+    int cursor_position = lineEdit()->cursorPosition();
+    lineEdit()->setText(TextFromValue());
+    lineEdit()->setCursorPosition(cursor_position);
+}
+QString CSpinBox::TextFromValue()
+{
+    return prefix
+           + QString(HasSign() ? ((value < 0) ? "-" : "+") : "")
+           + QString("%1").arg(abs(value), num_digits, base, QLatin1Char('0')).toUpper()
+           + suffix;
+}
+qint64 CSpinBox::ValueFromText()
+{
+    unsigned strpos = prefix.length();
+    QString num_string = text().mid(strpos, text().length() - strpos - suffix.length());
+    return num_string.toLongLong(nullptr, base);
+}
+bool CSpinBox::HasSign() const
+{
+    return base == 10 && min_value < 0;
+}
+void CSpinBox::OnEditingFinished()
+{
+    // Only update for valid input
+    QString input = lineEdit()->text();
+    int pos = 0;
+    if (QValidator::Acceptable == validate(input, pos))
+        SetValue(ValueFromText());
+}
+QValidator::State CSpinBox::validate(QString& input, int& pos) const
+{
+    if (!prefix.isEmpty() && input.left(prefix.length()) != prefix)
+        return QValidator::Invalid;
+    unsigned strpos = prefix.length();
+    // Empty "numbers" allowed as intermediate values
+    if (strpos >= input.length() - HasSign() - suffix.length())
+        return QValidator::Intermediate;
+    _dbg_assert_(Frontend, base <= 10 || base == 16);
+    QString regexp;
+    // Demand sign character for negative ranges
+    if (HasSign())
+        regexp += "[+\\-]";
+    // Match digits corresponding to the chosen number base.
+    regexp += QString("[0-%1").arg(std::min(base, 9));
+    if (base == 16) {
+        regexp += "a-fA-F";
+    }
+    regexp += "]";
+    // Specify number of digits
+    if (num_digits > 0) {
+        regexp += QString("{%1}").arg(num_digits);
+    } else {
+        regexp += "+";
+    }
+    // Match string
+    QRegExp num_regexp(regexp);
+    int num_pos = strpos;
+    QString sub_input = input.mid(strpos, input.length() - strpos - suffix.length());
+    if (!num_regexp.exactMatch(sub_input) && num_regexp.matchedLength() == 0)
+        return QValidator::Invalid;
+    sub_input = sub_input.left(num_regexp.matchedLength());
+    bool ok;
+    qint64 val = sub_input.toLongLong(&ok, base);
+    if (!ok)
+        return QValidator::Invalid;
+    // Outside boundaries => don't accept
+    if (val < min_value || val > max_value)
+        return QValidator::Invalid;
+    // Make sure we are actually at the end of this string...
+    strpos += num_regexp.matchedLength();
+    if (!suffix.isEmpty() && input.mid(strpos) != suffix) {
+        return QValidator::Invalid;
+    } else {
+        strpos += suffix.length();
+    }
+    if (strpos != input.length())
+        return QValidator::Invalid;
+    // At this point we can say for sure that the input is fine. Let's fix it up a bit though
+    input.replace(num_pos, sub_input.length(), sub_input.toUpper());
+    return QValidator::Acceptable;
+}
diff --git a/src/citra_qt/util/spinbox.hxx b/src/citra_qt/util/spinbox.hxx
new file mode 100644
index 000000000..68f5b9894
--- /dev/null
+++ b/src/citra_qt/util/spinbox.hxx
@@ -0,0 +1,88 @@
+// Licensed under GPLv2+
+// Refer to the license.txt file included.
+// Copyright 2014 Tony Wasserka
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are met:
+//
+//     * Redistributions of source code must retain the above copyright
+//       notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above copyright
+//       notice, this list of conditions and the following disclaimer in the
+//       documentation and/or other materials provided with the distribution.
+//     * Neither the name of the owner nor the names of its contributors may
+//       be used to endorse or promote products derived from this software
+//       without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+#pragma once
+#include <QAbstractSpinBox>
+#include <QtGlobal>
+class QVariant;
+/**
+ * A custom spin box widget with enhanced functionality over Qt's QSpinBox
+ */
+class CSpinBox : public QAbstractSpinBox {
+    Q_OBJECT
+public:
+    CSpinBox(QWidget* parent = nullptr);
+    void stepBy(int steps) override;
+    StepEnabled stepEnabled() const override;
+    void SetValue(qint64 val);
+    void SetRange(qint64 min, qint64 max);
+    void SetBase(int base);
+    void SetPrefix(const QString& prefix);
+    void SetSuffix(const QString& suffix);
+    void SetNumDigits(int num_digits);
+    QValidator::State validate(QString& input, int& pos) const override;
+signals:
+    void ValueChanged(qint64 val);
+private slots:
+    void OnEditingFinished();
+private:
+    void UpdateText();
+    bool HasSign() const;
+    QString TextFromValue();
+    qint64 ValueFromText();
+    qint64 min_value, max_value;
+    qint64 value;
+    QString prefix, suffix;
+    int base;
+    int num_digits;
+};
diff --git a/src/common/CMakeLists.txt b/src/common/CMakeLists.txt
index 9d5a90762..15989708d 100644
--- a/src/common/CMakeLists.txt
+++ b/src/common/CMakeLists.txt
@@ -3,14 +3,15 @@ configure_file("${CMAKE_CURRENT_SOURCE_DIR}/scm_rev.cpp.in" "${CMAKE_CURRENT_SOU
 set(SRCS
            break_points.cpp
-            console_listener.cpp
            emu_window.cpp
            extended_trace.cpp
            file_search.cpp
            file_util.cpp
            hash.cpp
            key_map.cpp
-            log_manager.cpp
+            logging/filter.cpp
+            logging/text_formatter.cpp
+            logging/backend.cpp
            math_util.cpp
            mem_arena.cpp
            memory_util.cpp
@@ -32,7 +33,7 @@ set(HEADERS
            common_funcs.h
            common_paths.h
            common_types.h
-            console_listener.h
+            concurrent_ring_buffer.h
            cpu_detect.h
            debug_interface.h
            emu_window.h
@@ -44,13 +45,17 @@ set(HEADERS
            key_map.h
            linear_disk_cache.h
            log.h
-            log_manager.h
+            logging/text_formatter.h
+            logging/filter.h
+            logging/log.h
+            logging/backend.h
            math_util.h
            mem_arena.h
            memory_util.h
            msg_handler.h
            platform.h
            scm_rev.h
+            scope_exit.h
            string_util.h
            swap.h
            symbols.h
diff --git a/src/common/break_points.cpp b/src/common/break_points.cpp
index 25528b864..587dbf40a 100644
--- a/src/common/break_points.cpp
+++ b/src/common/break_points.cpp
@@ -180,7 +180,7 @@ void TMemCheck::Action(DebugInterface *debug_interface, u32 iValue, u32 addr,
    {
        if (Log)
        {
-            INFO_LOG(MEMMAP, "CHK %08x (%s) %s%i %0*x at %08x (%s)",
+            LOG_DEBUG(Debug_Breakpoint, "CHK %08x (%s) %s%i %0*x at %08x (%s)",
                pc, debug_interface->getDescription(pc).c_str(),
                write ? "Write" : "Read", size*8, size*2, iValue, addr,
                debug_interface->getDescription(addr).c_str()
diff --git a/src/common/chunk_file.h b/src/common/chunk_file.h
index dc8ac1fd9..39a14dc81 100644
--- a/src/common/chunk_file.h
+++ b/src/common/chunk_file.h
@@ -51,7 +51,7 @@ public:
    PointerWrapSection(PointerWrap &p, int ver, const char *title) : p_(p), ver_(ver), title_(title) {
    }
    ~PointerWrapSection();
-    
    bool operator == (const int &v) const { return ver_ == v; }
    bool operator != (const int &v) const { return ver_ != v; }
    bool operator <= (const int &v) const { return ver_ <= v; }
@@ -154,7 +154,7 @@ public:
            Do(foundVersion);
        if (error == ERROR_FAILURE || foundVersion < minVer || foundVersion > ver) {
-            WARN_LOG(COMMON, "Savestate failure: wrong version %d found for %s", foundVersion, title);
+            LOG_ERROR(Common, "Savestate failure: wrong version %d found for %s", foundVersion, title);
            SetError(ERROR_FAILURE);
            return PointerWrapSection(*this, -1, title);
        }
@@ -178,7 +178,14 @@ public:
        case MODE_READ:    if (memcmp(data, *ptr, size) != 0) return false; break;
        case MODE_WRITE: memcpy(*ptr, data, size); break;
        case MODE_MEASURE: break;  // MODE_MEASURE - don't need to do anything
-        case MODE_VERIFY: for(int i = 0; i < size; i++) _dbg_assert_msg_(COMMON, ((u8*)data)[i] == (*ptr)[i], "Savestate verification failure: %d (0x%X) (at %p) != %d (0x%X) (at %p).\n", ((u8*)data)[i], ((u8*)data)[i], &((u8*)data)[i], (*ptr)[i], (*ptr)[i], &(*ptr)[i]); break;
+        case MODE_VERIFY:
+            for (int i = 0; i < size; i++) {
+                _dbg_assert_msg_(Common, ((u8*)data)[i] == (*ptr)[i],
+                    "Savestate verification failure: %d (0x%X) (at %p) != %d (0x%X) (at %p).\n",
+                    ((u8*)data)[i], ((u8*)data)[i], &((u8*)data)[i],
+                    (*ptr)[i], (*ptr)[i], &(*ptr)[i]);
+            }
+            break;
        default: break;  // throw an error?
        }
        (*ptr) += size;
@@ -191,12 +198,19 @@ public:
        case MODE_READ:    memcpy(data, *ptr, size); break;
        case MODE_WRITE: memcpy(*ptr, data, size); break;
        case MODE_MEASURE: break;  // MODE_MEASURE - don't need to do anything
-        case MODE_VERIFY: for(int i = 0; i < size; i++) _dbg_assert_msg_(COMMON, ((u8*)data)[i] == (*ptr)[i], "Savestate verification failure: %d (0x%X) (at %p) != %d (0x%X) (at %p).\n", ((u8*)data)[i], ((u8*)data)[i], &((u8*)data)[i], (*ptr)[i], (*ptr)[i], &(*ptr)[i]); break;
+        case MODE_VERIFY:
+            for (int i = 0; i < size; i++) {
+                _dbg_assert_msg_(Common, ((u8*)data)[i] == (*ptr)[i],
+                    "Savestate verification failure: %d (0x%X) (at %p) != %d (0x%X) (at %p).\n",
+                    ((u8*)data)[i], ((u8*)data)[i], &((u8*)data)[i],
+                    (*ptr)[i], (*ptr)[i], &(*ptr)[i]);
+            }
+            break;
        default: break;  // throw an error?
        }
        (*ptr) += size;
    }
-    
    template<class K, class T>
    void Do(std::map<K, T *> &x)
    {
@@ -204,11 +218,11 @@ public:
        {
            for (auto it = x.begin(), end = x.end(); it != end; ++it)
            {
-                if (it->second != NULL)
+                if (it->second != nullptr)
                    delete it->second;
            }
        }
-        T *dv = NULL;
+        T *dv = nullptr;
        DoMap(x, dv);
    }
@@ -264,11 +278,11 @@ public:
        {
            for (auto it = x.begin(), end = x.end(); it != end; ++it)
            {
-                if (it->second != NULL)
+                if (it->second != nullptr)
                    delete it->second;
            }
        }
-        T *dv = NULL;
+        T *dv = nullptr;
        DoMultimap(x, dv);
    }
@@ -320,7 +334,7 @@ public:
    template<class T>
    void Do(std::vector<T *> &x)
    {
-        T *dv = NULL;
+        T *dv = nullptr;
        DoVector(x, dv);
    }
@@ -364,12 +378,12 @@ public:
        if (vec_size > 0)
            DoArray(&x[0], vec_size);
    }
-    
    // Store deques.
    template<class T>
    void Do(std::deque<T *> &x)
    {
-        T *dv = NULL;
+        T *dv = nullptr;
        DoDeque(x, dv);
    }
@@ -395,7 +409,7 @@ public:
    template<class T>
    void Do(std::list<T *> &x)
    {
-        T *dv = NULL;
+        T *dv = nullptr;
        Do(x, dv);
    }
@@ -433,7 +447,7 @@ public:
        {
            for (auto it = x.begin(), end = x.end(); it != end; ++it)
            {
-                if (*it != NULL)
+                if (*it != nullptr)
                    delete *it;
            }
        }
@@ -476,26 +490,31 @@ public:
            break;
        default:
-            ERROR_LOG(COMMON, "Savestate error: invalid mode %d.", mode);
+            LOG_ERROR(Common, "Savestate error: invalid mode %d.", mode);
        }
    }
    // Store strings.
-    void Do(std::string &x) 
+    void Do(std::string &x)
    {
        int stringLen = (int)x.length() + 1;
        Do(stringLen);
-        
        switch (mode) {
        case MODE_READ:        x = (char*)*ptr; break;
        case MODE_WRITE:    memcpy(*ptr, x.c_str(), stringLen); break;
        case MODE_MEASURE: break;
-        case MODE_VERIFY: _dbg_assert_msg_(COMMON, !strcmp(x.c_str(), (char*)*ptr), "Savestate verification failure: \"%s\" != \"%s\" (at %p).\n", x.c_str(), (char*)*ptr, ptr); break;
+        case MODE_VERIFY:
+            _dbg_assert_msg_(Common,
+                !strcmp(x.c_str(), (char*)*ptr),
+                "Savestate verification failure: \"%s\" != \"%s\" (at %p).\n",
+                x.c_str(), (char*)*ptr, ptr);
+            break;
        }
        (*ptr) += stringLen;
    }
-    void Do(std::wstring &x) 
+    void Do(std::wstring &x)
    {
        int stringLen = sizeof(wchar_t)*((int)x.length() + 1);
        Do(stringLen);
@@ -504,7 +523,11 @@ public:
        case MODE_READ:        x = (wchar_t*)*ptr; break;
        case MODE_WRITE:    memcpy(*ptr, x.c_str(), stringLen); break;
        case MODE_MEASURE: break;
-        case MODE_VERIFY: _dbg_assert_msg_(COMMON, x == (wchar_t*)*ptr, "Savestate verification failure: \"%ls\" != \"%ls\" (at %p).\n", x.c_str(), (wchar_t*)*ptr, ptr); break;
+        case MODE_VERIFY:
+            _dbg_assert_msg_(Common, x == (wchar_t*)*ptr,
+                "Savestate verification failure: \"%ls\" != \"%ls\" (at %p).\n",
+                x.c_str(), (wchar_t*)*ptr, ptr);
+            break;
        }
        (*ptr) += stringLen;
    }
@@ -518,7 +541,7 @@ public:
    void DoClass(T *&x) {
        if (mode == MODE_READ)
        {
-            if (x != NULL)
+            if (x != nullptr)
                delete x;
            x = new T();
        }
@@ -534,7 +557,7 @@ public:
    void Do(T &x) {
        DoHelper<T>::Do(this, x);
    }
-    
    template<class T>
    void DoPOD(T &x) {
        DoHelper<T>::Do(this, x);
@@ -567,7 +590,7 @@ public:
                {
                    if (mode == MODE_READ)
                    {
-                        cur->next = 0;
+                        cur->next = nullptr;
                        list_cur = cur;
                        if (prev)
                            prev->next = cur;
@@ -586,13 +609,13 @@ public:
                if (mode == MODE_READ)
                {
                    if (prev)
-                        prev->next = 0;
+                        prev->next = nullptr;
                    if (list_end)
                        *list_end = prev;
                    if (list_cur)
                    {
                        if (list_start == list_cur)
-                            list_start = 0;
+                            list_start = nullptr;
                        do
                        {
                            LinkedListItem<T>* next = list_cur->next;
diff --git a/src/common/common_funcs.h b/src/common/common_funcs.h
index c18afe119..67b3679b0 100644
--- a/src/common/common_funcs.h
+++ b/src/common/common_funcs.h
@@ -4,6 +4,9 @@
 #pragma once
+#include "common_types.h"
+#include <cstdlib>
 #ifdef _WIN32
 #define SLEEP(x) Sleep(x)
 #else
@@ -17,7 +20,7 @@ template<> struct CompileTimeAssert<true> {};
 #define b2(x)   (   (x) | (   (x) >> 1) )
 #define b4(x)   ( b2(x) | ( b2(x) >> 2) )
 #define b8(x)   ( b4(x) | ( b4(x) >> 4) )
-#define b16(x)  ( b8(x) | ( b8(x) >> 8) )  
+#define b16(x)  ( b8(x) | ( b8(x) >> 8) )
 #define b32(x)  (b16(x) | (b16(x) >>16) )
 #define ROUND_UP_POW2(x)    (b32(x - 1) + 1)
@@ -73,18 +76,20 @@ inline u64 _rotr64(u64 x, unsigned int shift){
 }
 #else // WIN32
+#include <locale.h>
 // Function Cross-Compatibility
    #define strcasecmp _stricmp
    #define strncasecmp _strnicmp
    #define unlink _unlink
    #define snprintf _snprintf
    #define vscprintf _vscprintf
-    
 // Locale Cross-Compatibility
    #define locale_t _locale_t
    #define freelocale _free_locale
    #define newlocale(mask, locale, base) _create_locale(mask, locale)
-    
    #define LC_GLOBAL_LOCALE    ((locale_t)-1)
    #define LC_ALL_MASK            LC_ALL
    #define LC_COLLATE_MASK        LC_COLLATE
@@ -92,7 +97,7 @@ inline u64 _rotr64(u64 x, unsigned int shift){
    #define LC_MONETARY_MASK    LC_MONETARY
    #define LC_NUMERIC_MASK        LC_NUMERIC
    #define LC_TIME_MASK        LC_TIME
-    
    inline locale_t uselocale(locale_t new_locale)
    {
        // Retrieve the current per thread locale setting
@@ -106,7 +111,7 @@ inline u64 _rotr64(u64 x, unsigned int shift){
            // Restore the global locale
            _configthreadlocale(_DISABLE_PER_THREAD_LOCALE);
        }
-        else if(new_locale != NULL)
+        else if(new_locale != nullptr)
        {
            // Configure the thread to set the locale only for this thread
            _configthreadlocale(_ENABLE_PER_THREAD_LOCALE);
@@ -168,8 +173,8 @@ inline u16 swap16(u16 _data) {return _byteswap_ushort(_data);}
 inline u32 swap32(u32 _data) {return _byteswap_ulong (_data);}
 inline u64 swap64(u64 _data) {return _byteswap_uint64(_data);}
 #elif _M_ARM
-inline u16 swap16 (u16 _data) { u32 data = _data; __asm__ ("rev16 %0, %1\n" : "=l" (data) : "l" (data)); return (u16)data;} 
+inline u16 swap16 (u16 _data) { u32 data = _data; __asm__ ("rev16 %0, %1\n" : "=l" (data) : "l" (data)); return (u16)data;}
-inline u32 swap32 (u32 _data) {__asm__ ("rev %0, %1\n" : "=l" (_data) : "l" (_data)); return _data;} 
+inline u32 swap32 (u32 _data) {__asm__ ("rev %0, %1\n" : "=l" (_data) : "l" (_data)); return _data;}
 inline u64 swap64(u64 _data) {return ((u64)swap32(_data) << 32) | swap32(_data >> 32);}
 #elif __linux__
 inline u16 swap16(u16 _data) {return bswap_16(_data);}
@@ -226,7 +231,7 @@ template <typename T>
 inline T FromBigEndian(T data)
 {
    //static_assert(std::is_arithmetic<T>::value, "function only makes sense with arithmetic types");
-    
    swap<sizeof(data)>(reinterpret_cast<u8*>(&data));
    return data;
 }
diff --git a/src/common/common_paths.h b/src/common/common_paths.h
index ae08d082a..a86889756 100644
--- a/src/common/common_paths.h
+++ b/src/common/common_paths.h
@@ -29,19 +29,6 @@
    #endif
 #endif
-// Shared data dirs (Sys and shared User for linux)
-#ifdef _WIN32
-    #define SYSDATA_DIR "sys"
-#else
-    #ifdef DATA_DIR
-        #define SYSDATA_DIR DATA_DIR "sys"
-        #define SHARED_USER_DIR  DATA_DIR USERDATA_DIR DIR_SEP
-    #else
-        #define SYSDATA_DIR "sys"
-        #define SHARED_USER_DIR  ROOT_DIR DIR_SEP USERDATA_DIR DIR_SEP
-    #endif
-#endif
 // Dirs in both User and Sys
 #define EUR_DIR "EUR"
 #define USA_DIR "USA"
@@ -53,6 +40,8 @@
 #define MAPS_DIR          "maps"
 #define CACHE_DIR         "cache"
 #define SDMC_DIR          "sdmc"
+#define SAVEDATA_DIR      "savedata"
+#define SYSDATA_DIR       "sysdata"
 #define SHADERCACHE_DIR   "shader_cache"
 #define STATESAVES_DIR    "state_saves"
 #define SCREENSHOTS_DIR   "screenShots"
@@ -70,6 +59,9 @@
 #define DEBUGGER_CONFIG   "debugger.ini"
 #define LOGGER_CONFIG     "logger.ini"
+// Sys files
+#define SHARED_FONT       "shared_font.bin"
 // Files in the directory returned by GetUserPath(D_LOGS_IDX)
 #define MAIN_LOG "emu.log"
diff --git a/src/common/common_types.h b/src/common/common_types.h
index 7ce6b2240..c74c74f0f 100644
--- a/src/common/common_types.h
+++ b/src/common/common_types.h
@@ -22,7 +22,7 @@
 * http://code.google.com/p/gekko-gc-emu/
 */
-#pragma once 
+#pragma once
 #include <cmath>
 #include <cstdint>
@@ -41,12 +41,10 @@ typedef std::int64_t s64; ///< 64-bit signed int
 typedef float   f32; ///< 32-bit floating point
 typedef double  f64; ///< 64-bit floating point
-#include "common/common.h"
 /// Union for fast 16-bit type casting
 union t16 {
-        u8      _u8[2];             ///< 8-bit unsigned char(s)
+    u8  _u8[2];             ///< 8-bit unsigned char(s)
-        u16 _u16;               ///< 16-bit unsigned shorts(s)
+    u16 _u16;               ///< 16-bit unsigned shorts(s)
 };
 /// Union for fast 32-bit type casting
diff --git a/src/common/concurrent_ring_buffer.h b/src/common/concurrent_ring_buffer.h
new file mode 100644
index 000000000..2951d93db
--- /dev/null
+++ b/src/common/concurrent_ring_buffer.h
@@ -0,0 +1,164 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2+
+// Refer to the license.txt file included.
+#pragma once
+#include <array>
+#include <condition_variable>
+#include <cstdint>
+#include <mutex>
+#include <thread>
+#include "common/common.h" // for NonCopyable
+#include "common/log.h" // for _dbg_assert_
+namespace Common {
+/**
+ * A MPMC (Multiple-Producer Multiple-Consumer) concurrent ring buffer. This data structure permits
+ * multiple threads to push and pop from a queue of bounded size.
+ */
+template <typename T, size_t ArraySize>
+class ConcurrentRingBuffer : private NonCopyable {
+public:
+    /// Value returned by the popping functions when the queue has been closed.
+    static const size_t QUEUE_CLOSED = -1;
+    ConcurrentRingBuffer() {}
+    ~ConcurrentRingBuffer() {
+        // If for whatever reason the queue wasn't completely drained, destroy the left over items.
+        for (size_t i = reader_index, end = writer_index; i != end; i = (i + 1) % ArraySize) {
+            Data()[i].~T();
+        }
+    }
+    /**
+     * Pushes a value to the queue. If the queue is full, this method will block. Does nothing if
+     * the queue is closed.
+     */
+    void Push(T val) {
+        std::unique_lock<std::mutex> lock(mutex);
+        if (closed) {
+            return;
+        }
+        // If the buffer is full, wait
+        writer.wait(lock, [&]{
+            return (writer_index + 1) % ArraySize != reader_index;
+        });
+        T* item = &Data()[writer_index];
+        new (item) T(std::move(val));
+        writer_index = (writer_index + 1) % ArraySize;
+        // Wake up waiting readers
+        lock.unlock();
+        reader.notify_one();
+    }
+    /**
+     * Pops up to `dest_len` items from the queue, storing them in `dest`. This function will not
+     * block, and might return 0 values if there are no elements in the queue when it is called.
+     *
+     * @return The number of elements stored in `dest`. If the queue has been closed, returns
+     *          `QUEUE_CLOSED`.
+     */
+    size_t Pop(T* dest, size_t dest_len) {
+        std::unique_lock<std::mutex> lock(mutex);
+        if (closed && !CanRead()) {
+            return QUEUE_CLOSED;
+        }
+        return PopInternal(dest, dest_len);
+    }
+    /**
+     * Pops up to `dest_len` items from the queue, storing them in `dest`. This function will block
+     * if there are no elements in the queue when it is called.
+     *
+     * @return The number of elements stored in `dest`. If the queue has been closed, returns
+     *         `QUEUE_CLOSED`.
+     */
+    size_t BlockingPop(T* dest, size_t dest_len) {
+        std::unique_lock<std::mutex> lock(mutex);
+        if (closed && !CanRead()) {
+            return QUEUE_CLOSED;
+        }
+        while (!CanRead()) {
+            reader.wait(lock);
+            if (closed && !CanRead()) {
+                return QUEUE_CLOSED;
+            }
+        }
+        _dbg_assert_(Common, CanRead());
+        return PopInternal(dest, dest_len);
+    }
+    /**
+     * Closes the queue. After calling this method, `Push` operations won't have any effect, and
+     * `PopMany` and `PopManyBlock` will start returning `QUEUE_CLOSED`. This is intended to allow
+     * a graceful shutdown of all consumers.
+     */
+    void Close() {
+        std::unique_lock<std::mutex> lock(mutex);
+        closed = true;
+        // We need to wake up any reader that are waiting for an item that will never come.
+        lock.unlock();
+        reader.notify_all();
+    }
+    /// Returns true if `Close()` has been called.
+    bool IsClosed() const {
+        return closed;
+    }
+private:
+    size_t PopInternal(T* dest, size_t dest_len) {
+        size_t output_count = 0;
+        while (output_count < dest_len && CanRead()) {
+            _dbg_assert_(Common, CanRead());
+            T* item = &Data()[reader_index];
+            T out_val = std::move(*item);
+            item->~T();
+            size_t prev_index = (reader_index + ArraySize - 1) % ArraySize;
+            reader_index = (reader_index + 1) % ArraySize;
+            if (writer_index == prev_index) {
+                writer.notify_one();
+            }
+            dest[output_count++] = std::move(out_val);
+        }
+        return output_count;
+    }
+    bool CanRead() const {
+        return reader_index != writer_index;
+    }
+    T* Data() {
+        return static_cast<T*>(static_cast<void*>(&storage));
+    }
+    /// Storage for entries
+    typename std::aligned_storage<ArraySize * sizeof(T),
+                                  std::alignment_of<T>::value>::type storage;
+    /// Data is valid in the half-open interval [reader, writer). If they are `QUEUE_CLOSED` then the
+    /// queue has been closed.
+    size_t writer_index = 0, reader_index = 0;
+    // True if the queue has been closed.
+    bool closed = false;
+    /// Mutex that protects the entire data structure.
+    std::mutex mutex;
+    /// Signaling wakes up reader which is waiting for storage to be non-empty.
+    std::condition_variable reader;
+    /// Signaling wakes up writer which is waiting for storage to be non-full.
+    std::condition_variable writer;
+};
+} // namespace
diff --git a/src/common/console_listener.cpp b/src/common/console_listener.cpp
deleted file mode 100644
index 53f20d754..000000000
--- a/src/common/console_listener.cpp
+++ /dev/null
@@ -1,319 +0,0 @@
-// Copyright 2013 Dolphin Emulator Project
-// Licensed under GPLv2
-// Refer to the license.txt file included.
-#include <algorithm>
-#ifdef _WIN32
-#include <windows.h>
-#include <array>
-#endif
-#include "common/common.h"
-#include "common/log_manager.h" // Common
-#include "common/console_listener.h" // Common
-ConsoleListener::ConsoleListener()
-{
-#ifdef _WIN32
-    hConsole = NULL;
-    bUseColor = true;
-#else
-    bUseColor = isatty(fileno(stdout));
-#endif
-}
-ConsoleListener::~ConsoleListener()
-{
-    Close();
-}
-// 100, 100, "Dolphin Log Console"
-// Open console window - width and height is the size of console window
-// Name is the window title
-void ConsoleListener::Open(bool Hidden, int Width, int Height, const char *Title)
-{
-#ifdef _WIN32
-    if (!GetConsoleWindow())
-    {
-        // Open the console window and create the window handle for GetStdHandle()
-        AllocConsole();
-        // Hide
-        if (Hidden) ShowWindow(GetConsoleWindow(), SW_HIDE);
-        // Save the window handle that AllocConsole() created
-        hConsole = GetStdHandle(STD_OUTPUT_HANDLE);
-        // Set the console window title
-        SetConsoleTitle(Common::UTF8ToTStr(Title).c_str());
-        // Set letter space
-        LetterSpace(80, 4000);
-        //MoveWindow(GetConsoleWindow(), 200,200, 800,800, true);
-    }
-    else
-    {
-        hConsole = GetStdHandle(STD_OUTPUT_HANDLE);
-    }
-#endif
-}
-void ConsoleListener::UpdateHandle()
-{
-#ifdef _WIN32
-    hConsole = GetStdHandle(STD_OUTPUT_HANDLE);
-#endif
-}
-// Close the console window and close the eventual file handle
-void ConsoleListener::Close()
-{
-#ifdef _WIN32
-    if (hConsole == NULL)
-        return;
-    FreeConsole();
-    hConsole = NULL;
-#else
-    fflush(NULL);
-#endif
-}
-bool ConsoleListener::IsOpen()
-{
-#ifdef _WIN32
-    return (hConsole != NULL);
-#else
-    return true;
-#endif
-}
-/*
-  LetterSpace: SetConsoleScreenBufferSize and SetConsoleWindowInfo are
-    dependent on each other, that's the reason for the additional checks.  
-*/
-void ConsoleListener::BufferWidthHeight(int BufferWidth, int BufferHeight, int ScreenWidth, int ScreenHeight, bool BufferFirst)
-{
-#ifdef _WIN32
-    BOOL SB, SW;
-    if (BufferFirst)
-    {
-        // Change screen buffer size
-        COORD Co = {BufferWidth, BufferHeight};
-        SB = SetConsoleScreenBufferSize(hConsole, Co);
-        // Change the screen buffer window size
-        SMALL_RECT coo = {0,0,ScreenWidth, ScreenHeight}; // top, left, right, bottom
-        SW = SetConsoleWindowInfo(hConsole, TRUE, &coo);
-    }
-    else
-    {
-        // Change the screen buffer window size
-        SMALL_RECT coo = {0,0, ScreenWidth, ScreenHeight}; // top, left, right, bottom
-        SW = SetConsoleWindowInfo(hConsole, TRUE, &coo);
-        // Change screen buffer size
-        COORD Co = {BufferWidth, BufferHeight};
-        SB = SetConsoleScreenBufferSize(hConsole, Co);
-    }
-#endif
-}
-void ConsoleListener::LetterSpace(int Width, int Height)
-{
-#ifdef _WIN32
-    // Get console info
-    CONSOLE_SCREEN_BUFFER_INFO ConInfo;
-    GetConsoleScreenBufferInfo(hConsole, &ConInfo);
-    //
-    int OldBufferWidth = ConInfo.dwSize.X;
-    int OldBufferHeight = ConInfo.dwSize.Y;
-    int OldScreenWidth = (ConInfo.srWindow.Right - ConInfo.srWindow.Left);
-    int OldScreenHeight = (ConInfo.srWindow.Bottom - ConInfo.srWindow.Top);
-    //
-    int NewBufferWidth = Width;
-    int NewBufferHeight = Height;
-    int NewScreenWidth = NewBufferWidth - 1;
-    int NewScreenHeight = OldScreenHeight;
-    // Width
-    BufferWidthHeight(NewBufferWidth, OldBufferHeight, NewScreenWidth, OldScreenHeight, (NewBufferWidth > OldScreenWidth-1));
-    // Height
-    BufferWidthHeight(NewBufferWidth, NewBufferHeight, NewScreenWidth, NewScreenHeight, (NewBufferHeight > OldScreenHeight-1));
-    // Resize the window too
-    //MoveWindow(GetConsoleWindow(), 200,200, (Width*8 + 50),(NewScreenHeight*12 + 200), true);
-#endif
-}
-#ifdef _WIN32
-COORD ConsoleListener::GetCoordinates(int BytesRead, int BufferWidth)
-{
-    COORD Ret = {0, 0};
-    // Full rows
-    int Step = (int)floor((float)BytesRead / (float)BufferWidth);
-    Ret.Y += Step;
-    // Partial row
-    Ret.X = BytesRead - (BufferWidth * Step);
-    return Ret;
-}
-#endif
-void ConsoleListener::PixelSpace(int Left, int Top, int Width, int Height, bool Resize)
-{
-#ifdef _WIN32
-    // Check size
-    if (Width < 8 || Height < 12) return;
-    bool DBef = true;
-    bool DAft = true;
-    std::string SLog = "";
-    const HWND hWnd = GetConsoleWindow();
-    const HANDLE hConsole = GetStdHandle(STD_OUTPUT_HANDLE);
-    // Get console info
-    CONSOLE_SCREEN_BUFFER_INFO ConInfo;
-    GetConsoleScreenBufferInfo(hConsole, &ConInfo);
-    DWORD BufferSize = ConInfo.dwSize.X * ConInfo.dwSize.Y;
-    // ---------------------------------------------------------------------
-    //  Save the current text
-    // ------------------------
-    DWORD cCharsRead = 0;
-    COORD coordScreen = { 0, 0 };
-    static const int MAX_BYTES = 1024 * 16;
-    std::vector<std::array<TCHAR, MAX_BYTES>> Str;
-    std::vector<std::array<WORD, MAX_BYTES>> Attr;
-    // ReadConsoleOutputAttribute seems to have a limit at this level
-    static const int ReadBufferSize = MAX_BYTES - 32;
-    DWORD cAttrRead = ReadBufferSize;
-    DWORD BytesRead = 0;
-    while (BytesRead < BufferSize)
-    {
-        Str.resize(Str.size() + 1);
-        if (!ReadConsoleOutputCharacter(hConsole, Str.back().data(), ReadBufferSize, coordScreen, &cCharsRead))
-            SLog += Common::StringFromFormat("WriteConsoleOutputCharacter error");
-        Attr.resize(Attr.size() + 1);
-        if (!ReadConsoleOutputAttribute(hConsole, Attr.back().data(), ReadBufferSize, coordScreen, &cAttrRead))
-            SLog += Common::StringFromFormat("WriteConsoleOutputAttribute error");
-        // Break on error
-        if (cAttrRead == 0) break;
-        BytesRead += cAttrRead;
-        coordScreen = GetCoordinates(BytesRead, ConInfo.dwSize.X);
-    }
-    // Letter space
-    int LWidth = (int)(floor((float)Width / 8.0f) - 1.0f);
-    int LHeight = (int)(floor((float)Height / 12.0f) - 1.0f);
-    int LBufWidth = LWidth + 1;
-    int LBufHeight = (int)floor((float)BufferSize / (float)LBufWidth);
-    // Change screen buffer size
-    LetterSpace(LBufWidth, LBufHeight);
-    ClearScreen(true);
-    coordScreen.Y = 0;
-    coordScreen.X = 0;
-    DWORD cCharsWritten = 0;
-    int BytesWritten = 0;
-    DWORD cAttrWritten = 0;
-    for (size_t i = 0; i < Attr.size(); i++)
-    {
-        if (!WriteConsoleOutputCharacter(hConsole, Str[i].data(), ReadBufferSize, coordScreen, &cCharsWritten))
-            SLog += Common::StringFromFormat("WriteConsoleOutputCharacter error");
-        if (!WriteConsoleOutputAttribute(hConsole, Attr[i].data(), ReadBufferSize, coordScreen, &cAttrWritten))
-            SLog += Common::StringFromFormat("WriteConsoleOutputAttribute error");
-        BytesWritten += cAttrWritten;
-        coordScreen = GetCoordinates(BytesWritten, LBufWidth);
-    }    
-    const int OldCursor = ConInfo.dwCursorPosition.Y * ConInfo.dwSize.X + ConInfo.dwCursorPosition.X;
-    COORD Coo = GetCoordinates(OldCursor, LBufWidth);
-    SetConsoleCursorPosition(hConsole, Coo);
-    if (SLog.length() > 0) Log(LogTypes::LNOTICE, SLog.c_str());
-    // Resize the window too
-    if (Resize) MoveWindow(GetConsoleWindow(), Left,Top, (Width + 100),Height, true);
-#endif
-}
-void ConsoleListener::Log(LogTypes::LOG_LEVELS Level, const char *Text)
-{
-#if defined(_WIN32)
-    WORD Color;
-    switch (Level)
-    {
-    case OS_LEVEL: // light yellow
-        Color = FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_INTENSITY;
-        break;
-    case NOTICE_LEVEL: // light green
-        Color = FOREGROUND_GREEN | FOREGROUND_INTENSITY;
-        break;
-    case ERROR_LEVEL: // light red
-        Color = FOREGROUND_RED | FOREGROUND_INTENSITY;
-        break;
-    case WARNING_LEVEL: // light purple
-        Color = FOREGROUND_RED | FOREGROUND_BLUE | FOREGROUND_INTENSITY;
-        break;
-    case INFO_LEVEL: // cyan
-        Color = FOREGROUND_GREEN | FOREGROUND_BLUE | FOREGROUND_INTENSITY;
-        break;
-    case DEBUG_LEVEL: // gray
-        Color = FOREGROUND_INTENSITY;
-        break;
-    default: // off-white
-        Color = FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_BLUE;
-        break;
-    }
-    SetConsoleTextAttribute(hConsole, Color);
-    printf(Text);
-#else
-    char ColorAttr[16] = "";
-    char ResetAttr[16] = "";
-    if (bUseColor)
-    {
-        strcpy(ResetAttr, "\033[0m");
-        switch (Level)
-        {
-        case NOTICE_LEVEL: // light green
-            strcpy(ColorAttr, "\033[92m");
-            break;
-        case ERROR_LEVEL: // light red
-            strcpy(ColorAttr, "\033[91m");
-            break;
-        case WARNING_LEVEL: // light yellow
-            strcpy(ColorAttr, "\033[93m");
-            break;
-        default:
-            break;
-        }
-    }
-    fprintf(stderr, "%s%s%s", ColorAttr, Text, ResetAttr);
-#endif
-}
-// Clear console screen
-void ConsoleListener::ClearScreen(bool Cursor)
-{ 
-#if defined(_WIN32)
-    COORD coordScreen = { 0, 0 }; 
-    DWORD cCharsWritten; 
-    CONSOLE_SCREEN_BUFFER_INFO csbi; 
-    DWORD dwConSize; 
-    HANDLE hConsole = GetStdHandle(STD_OUTPUT_HANDLE); 
-    GetConsoleScreenBufferInfo(hConsole, &csbi); 
-    dwConSize = csbi.dwSize.X * csbi.dwSize.Y;
-    // Write space to the entire console
-    FillConsoleOutputCharacter(hConsole, TEXT(' '), dwConSize, coordScreen, &cCharsWritten); 
-    GetConsoleScreenBufferInfo(hConsole, &csbi); 
-    FillConsoleOutputAttribute(hConsole, csbi.wAttributes, dwConSize, coordScreen, &cCharsWritten);
-    // Reset cursor
-    if (Cursor) SetConsoleCursorPosition(hConsole, coordScreen); 
-#endif
-}
diff --git a/src/common/console_listener.h b/src/common/console_listener.h
deleted file mode 100644
index ebd90a105..000000000
--- a/src/common/console_listener.h
+++ /dev/null
@@ -1,38 +0,0 @@
-// Copyright 2013 Dolphin Emulator Project
-// Licensed under GPLv2
-// Refer to the license.txt file included.
-#pragma once
-#include "common/log_manager.h"
-#ifdef _WIN32
-#include <windows.h>
-#endif
-class ConsoleListener : public LogListener
-{
-public:
-    ConsoleListener();
-    ~ConsoleListener();
-    void Open(bool Hidden = false, int Width = 100, int Height = 100, const char * Name = "Console");
-    void UpdateHandle();
-    void Close();
-    bool IsOpen();
-    void LetterSpace(int Width, int Height);
-    void BufferWidthHeight(int BufferWidth, int BufferHeight, int ScreenWidth, int ScreenHeight, bool BufferFirst);
-    void PixelSpace(int Left, int Top, int Width, int Height, bool);
-#ifdef _WIN32
-    COORD GetCoordinates(int BytesRead, int BufferWidth);
-#endif
-    void Log(LogTypes::LOG_LEVELS, const char *Text) override;
-    void ClearScreen(bool Cursor = true);
-private:
-#ifdef _WIN32
-    HWND GetHwnd(void);
-    HANDLE hConsole;
-#endif
-    bool bUseColor;
-};
diff --git a/src/common/emu_window.h b/src/common/emu_window.h
index 4d09acb8b..4cb94fed1 100644
--- a/src/common/emu_window.h
+++ b/src/common/emu_window.h
@@ -9,17 +9,33 @@
 #include "common/string_util.h"
 #include "common/key_map.h"
-// Abstraction class used to provide an interface between emulation code and the frontend (e.g. SDL, 
+/**
-//  QGLWidget, GLFW, etc...)
+ * Abstraction class used to provide an interface between emulation code and the frontend
+ * (e.g. SDL, QGLWidget, GLFW, etc...).
+ *
+ * Design notes on the interaction between EmuWindow and the emulation core:
+ * - Generally, decisions on anything visible to the user should be left up to the GUI.
+ *   For example, the emulation core should not try to dictate some window title or size.
+ *   This stuff is not the core's business and only causes problems with regards to thread-safety
+ *   anyway.
+ * - Under certain circumstances, it may be desirable for the core to politely request the GUI
+ *   to set e.g. a minimum window size. However, the GUI should always be free to ignore any
+ *   such hints.
+ * - EmuWindow may expose some of its state as read-only to the emulation core, however care
+ *   should be taken to make sure the provided information is self-consistent. This requires
+ *   some sort of synchronization (most of this is still a TODO).
+ * - DO NOT TREAT THIS CLASS AS A GUI TOOLKIT ABSTRACTION LAYER. That's not what it is. Please
+ *   re-read the upper points again and think about it if you don't see this.
+ */
 class EmuWindow
 {
 public:
-    /// Data structure to store an emuwindow configuration
+    /// Data structure to store emuwindow configuration
    struct WindowConfig {
        bool    fullscreen;
        int     res_width;
        int     res_height;
+        std::pair<unsigned,unsigned> min_client_area_size;
    };
    /// Swap buffers to display the next frame
@@ -42,52 +58,96 @@ public:
    /// Signals a key release action to the HID module
    static void KeyReleased(KeyMap::HostDeviceKey key);
-    WindowConfig GetConfig() const {
+    /**
-        return m_config;
+     * Returns currently active configuration.
+     * @note Accesses to the returned object need not be consistent because it may be modified in another thread
+     */
+    const WindowConfig& GetActiveConfig() const {
+        return active_config;
    }
+    /**
+     * Requests the internal configuration to be replaced by the specified argument at some point in the future.
+     * @note This method is thread-safe, because it delays configuration changes to the GUI event loop. Hence there is no guarantee on when the requested configuration will be active.
+     */
    void SetConfig(const WindowConfig& val) {
-        m_config = val;
+        config = val;
-    }
-    
-    int GetClientAreaWidth() const { 
-        return m_client_area_width;
    }
-    void SetClientAreaWidth(const int val) {
+    /**
-        m_client_area_width = val;
+      * Gets the framebuffer size in pixels.
+      * @note This method is thread-safe
+      */
+    const std::pair<unsigned,unsigned> GetFramebufferSize() const {
+        return framebuffer_size;
    }
-    int GetClientAreaHeight() const {
+    /**
-        return m_client_area_height;
+     * Gets window client area width in logical coordinates.
+     * @note For high-DPI systems, this is smaller than the framebuffer size.
+     * @note This method is thread-safe
+     */
+    std::pair<unsigned,unsigned> GetClientAreaSize() const {
+        return std::make_pair(client_area_width, client_area_height);
    }
-    void SetClientAreaHeight(const int val) {
+protected:
-        m_client_area_height = val;
+    EmuWindow()
+    {
+        // TODO: Find a better place to set this.
+        config.min_client_area_size = std::make_pair(400u, 480u);
+        active_config = config;
    }
+    virtual ~EmuWindow() {}
-    std::string GetWindowTitle() const { 
+    /**
-        return m_window_title;
+     * Processes any pending configuration changes from the last SetConfig call.
+     * This method invokes OnMinimalClientAreaChangeRequest if the corresponding configuration
+     * field changed.
+     * @note Implementations will usually want to call this from the GUI thread.
+     * @todo Actually call this in existing implementations.
+     */
+    void ProcessConfigurationChanges() {
+        // TODO: For proper thread safety, we should eventually implement a proper
+        // multiple-writer/single-reader queue...
+        if (config.min_client_area_size != active_config.min_client_area_size) {
+            OnMinimalClientAreaChangeRequest(config.min_client_area_size);
+            config.min_client_area_size = active_config.min_client_area_size;
+        }
    }
-    
-    void SetWindowTitle(std::string val) {
+    /**
-        m_window_title = val;
+     * Update internal framebuffer size with the given parameter.
+     * @note EmuWindow implementations will usually use this in window resize event handlers.
+     */
+    void NotifyFramebufferSizeChanged(const std::pair<unsigned,unsigned>& size) {
+        framebuffer_size = size;
    }
-protected:
+    /**
-    EmuWindow():
+     * Update internal client area size with the given parameter.
-        m_client_area_width(640),
+     * @note EmuWindow implementations will usually use this in window resize event handlers.
-        m_client_area_height(480),
+     */
-        m_window_title(Common::StringFromFormat("Citra | %s-%s", Common::g_scm_branch, Common::g_scm_desc))
+    void NotifyClientAreaSizeChanged(const std::pair<unsigned,unsigned>& size) {
-    {}
+        client_area_width = size.first;
-    virtual ~EmuWindow() {}
+        client_area_height = size.second;
+    }
-    std::string m_window_title;     ///< Current window title, should be used by window impl.
+private:
+    /**
+     * Handler called when the minimal client area was requested to be changed via SetConfig.
+     * For the request to be honored, EmuWindow implementations will usually reimplement this function.
+     */
+    virtual void OnMinimalClientAreaChangeRequest(const std::pair<unsigned,unsigned>& minimal_size) {
+        // By default, ignore this request and do nothing.
+    }
-    int m_client_area_width;        ///< Current client width, should be set by window impl.
+    std::pair<unsigned,unsigned> framebuffer_size;
-    int m_client_area_height;       ///< Current client height, should be set by window impl.
-private:
+    unsigned client_area_width;    ///< Current client width, should be set by window impl.
-    WindowConfig m_config;                ///< Internal configuration
+    unsigned client_area_height;   ///< Current client height, should be set by window impl.
+    WindowConfig config;         ///< Internal configuration (changes pending for being applied in ProcessConfigurationChanges)
+    WindowConfig active_config;  ///< Internal active configuration
 };
diff --git a/src/common/extended_trace.cpp b/src/common/extended_trace.cpp
index 9cd0398ed..cf7c346d4 100644
--- a/src/common/extended_trace.cpp
+++ b/src/common/extended_trace.cpp
@@ -29,7 +29,7 @@ using namespace std;
 void PCSTR2LPTSTR( PCSTR lpszIn, LPTSTR lpszOut )
 {
 #if defined(UNICODE)||defined(_UNICODE)
-    ULONG index = 0; 
+    ULONG index = 0;
    PCSTR lpAct = lpszIn;
    for( ; ; lpAct++ )
@@ -37,7 +37,7 @@ void PCSTR2LPTSTR( PCSTR lpszIn, LPTSTR lpszOut )
        lpszOut[index++] = (TCHAR)(*lpAct);
        if ( *lpAct == 0 )
            break;
-    } 
+    }
 #else
    // This is trivial :)
    strcpy( lpszOut, lpszIn );
@@ -82,7 +82,7 @@ static void InitSymbolPath( PSTR lpszSymbolPath, PCSTR lpszIniPath )
    }
    // Add user defined path
-    if ( lpszIniPath != NULL )
+    if ( lpszIniPath != nullptr )
        if ( lpszIniPath[0] != '\0' )
        {
            strcat( lpszSymbolPath, ";" );
@@ -101,7 +101,7 @@ BOOL InitSymInfo( PCSTR lpszInitialSymbolPath )
    CHAR     lpszSymbolPath[BUFFERSIZE];
    DWORD    symOptions = SymGetOptions();
-    symOptions |= SYMOPT_LOAD_LINES; 
+    symOptions |= SYMOPT_LOAD_LINES;
    symOptions &= ~SYMOPT_UNDNAME;
    SymSetOptions( symOptions );
    InitSymbolPath( lpszSymbolPath, lpszInitialSymbolPath );
@@ -138,7 +138,7 @@ static BOOL GetFunctionInfoFromAddresses( ULONG fnAddress, ULONG stackAddress, L
    DWORD             dwSymSize = 10000;
    TCHAR             lpszUnDSymbol[BUFFERSIZE]=_T("?");
    CHAR              lpszNonUnicodeUnDSymbol[BUFFERSIZE]="?";
-    LPTSTR            lpszParamSep = NULL;
+    LPTSTR            lpszParamSep = nullptr;
    LPTSTR            lpszParsed = lpszUnDSymbol;
    PIMAGEHLP_SYMBOL  pSym = (PIMAGEHLP_SYMBOL)GlobalAlloc( GMEM_FIXED, dwSymSize );
@@ -153,15 +153,15 @@ static BOOL GetFunctionInfoFromAddresses( ULONG fnAddress, ULONG stackAddress, L
 #ifndef _M_X64
    DWORD             dwDisp = 0;
    if ( SymGetSymFromAddr( GetCurrentProcess(), (ULONG)fnAddress, &dwDisp, pSym ) )
-#else 
+#else
    //makes it compile but hell im not sure if this works...
    DWORD64           dwDisp = 0;
    if ( SymGetSymFromAddr( GetCurrentProcess(), (ULONG)fnAddress, (PDWORD64)&dwDisp, pSym ) )
 #endif
    {
        // Make the symbol readable for humans
-        UnDecorateSymbolName( pSym->Name, lpszNonUnicodeUnDSymbol, BUFFERSIZE, 
+        UnDecorateSymbolName( pSym->Name, lpszNonUnicodeUnDSymbol, BUFFERSIZE,
-            UNDNAME_COMPLETE | 
+            UNDNAME_COMPLETE |
            UNDNAME_NO_THISTYPE |
            UNDNAME_NO_SPECIAL_SYMS |
            UNDNAME_NO_MEMBER_TYPE |
@@ -187,13 +187,13 @@ static BOOL GetFunctionInfoFromAddresses( ULONG fnAddress, ULONG stackAddress, L
        // Let's go through the stack, and modify the function prototype, and insert the actual
        // parameter values from the stack
-        if ( _tcsstr( lpszUnDSymbol, _T("(void)") ) == NULL && _tcsstr( lpszUnDSymbol, _T("()") ) == NULL)
+        if ( _tcsstr( lpszUnDSymbol, _T("(void)") ) == nullptr && _tcsstr( lpszUnDSymbol, _T("()") ) == nullptr)
        {
            ULONG index = 0;
            for( ; ; index++ )
            {
                lpszParamSep = _tcschr( lpszParsed, _T(',') );
-                if ( lpszParamSep == NULL )
+                if ( lpszParamSep == nullptr )
                    break;
                *lpszParamSep = _T('\0');
@@ -205,7 +205,7 @@ static BOOL GetFunctionInfoFromAddresses( ULONG fnAddress, ULONG stackAddress, L
            }
            lpszParamSep = _tcschr( lpszParsed, _T(')') );
-            if ( lpszParamSep != NULL )
+            if ( lpszParamSep != nullptr )
            {
                *lpszParamSep = _T('\0');
@@ -219,7 +219,7 @@ static BOOL GetFunctionInfoFromAddresses( ULONG fnAddress, ULONG stackAddress, L
        _tcscat( lpszSymbol, lpszParsed );
        ret = TRUE;
-    } 
+    }
    GlobalFree( pSym );
    return ret;
@@ -248,7 +248,7 @@ static BOOL GetSourceInfoFromAddress( UINT address, LPTSTR lpszSourceInfo )
        PCSTR2LPTSTR( lineInfo.FileName, lpszFileName );
        TCHAR fname[_MAX_FNAME];
        TCHAR ext[_MAX_EXT];
-        _tsplitpath(lpszFileName, NULL, NULL, fname, ext);
+        _tsplitpath(lpszFileName, nullptr, nullptr, fname, ext);
        _stprintf( lpszSourceInfo, _T("%s%s(%d)"), fname, ext, lineInfo.LineNumber );
        ret = TRUE;
    }
@@ -325,23 +325,23 @@ void StackTrace( HANDLE hThread, const char* lpszMessage, FILE *file )
        PrintFunctionAndSourceInfo(file, callStack);
-        for( ULONG index = 0; ; index++ ) 
+        for( ULONG index = 0; ; index++ )
        {
            bResult = StackWalk(
                IMAGE_FILE_MACHINE_I386,
                hProcess,
                hThread,
                &callStack,
-                NULL, 
+                nullptr,
-                NULL,
+                nullptr,
                SymFunctionTableAccess,
                SymGetModuleBase,
-                NULL);
+                nullptr);
            if ( index == 0 )
                continue;
-            if( !bResult || callStack.AddrFrame.Offset == 0 ) 
+            if( !bResult || callStack.AddrFrame.Offset == 0 )
                break;
            PrintFunctionAndSourceInfo(file, callStack);
@@ -382,23 +382,23 @@ void StackTrace(HANDLE hThread, const char* lpszMessage, FILE *file, DWORD eip,
        PrintFunctionAndSourceInfo(file, callStack);
-        for( ULONG index = 0; ; index++ ) 
+        for( ULONG index = 0; ; index++ )
        {
            bResult = StackWalk(
                IMAGE_FILE_MACHINE_I386,
                hProcess,
                hThread,
                &callStack,
-                NULL, 
+                nullptr,
-                NULL,
+                nullptr,
                SymFunctionTableAccess,
                SymGetModuleBase,
-                NULL);
+                nullptr);
            if ( index == 0 )
                continue;
-            if( !bResult || callStack.AddrFrame.Offset == 0 ) 
+            if( !bResult || callStack.AddrFrame.Offset == 0 )
                break;
            PrintFunctionAndSourceInfo(file, callStack);
diff --git a/src/common/fifo_queue.h b/src/common/fifo_queue.h
index 78a8f561d..b426e6596 100644
--- a/src/common/fifo_queue.h
+++ b/src/common/fifo_queue.h
@@ -45,7 +45,7 @@ public:
        // create the element, add it to the queue
        m_write_ptr->current = new T(std::forward<Arg>(t));
        // set the next pointer to a new element ptr
-        // then advance the write pointer 
+        // then advance the write pointer
        m_write_ptr = m_write_ptr->next = new ElementPtr();
        Common::AtomicIncrement(m_size);
    }
@@ -57,7 +57,7 @@ public:
        // advance the read pointer
        m_read_ptr = m_read_ptr->next;
        // set the next element to NULL to stop the recursive deletion
-        tmpptr->next = NULL;
+        tmpptr->next = nullptr;
        delete tmpptr;    // this also deletes the element
    }
@@ -86,7 +86,7 @@ private:
    class ElementPtr
    {
    public:
-        ElementPtr() : current(NULL), next(NULL) {}
+        ElementPtr() : current(nullptr), next(nullptr) {}
        ~ElementPtr()
        {
diff --git a/src/common/file_search.cpp b/src/common/file_search.cpp
index 63580f688..bfb54ce72 100644
--- a/src/common/file_search.cpp
+++ b/src/common/file_search.cpp
@@ -43,7 +43,7 @@ void CFileSearch::FindFiles(const std::string& _searchString, const std::string&
        bool bkeepLooping = true;
        while (bkeepLooping)
-        {            
+        {
            if (findData.cFileName[0] != '.')
            {
                std::string strFilename;
diff --git a/src/common/file_util.cpp b/src/common/file_util.cpp
index 35da07306..42cdf3262 100644
--- a/src/common/file_util.cpp
+++ b/src/common/file_util.cpp
@@ -88,7 +88,7 @@ bool IsDirectory(const std::string &filename)
 #endif
    if (result < 0) {
-        WARN_LOG(COMMON, "IsDirectory: stat failed on %s: %s", 
+        LOG_WARNING(Common_Filesystem, "stat failed on %s: %s",
                 filename.c_str(), GetLastErrorMsg());
        return false;
    }
@@ -100,33 +100,33 @@ bool IsDirectory(const std::string &filename)
 // Doesn't supports deleting a directory
 bool Delete(const std::string &filename)
 {
-    INFO_LOG(COMMON, "Delete: file %s", filename.c_str());
+    LOG_INFO(Common_Filesystem, "file %s", filename.c_str());
-    // Return true because we care about the file no 
+    // Return true because we care about the file no
    // being there, not the actual delete.
    if (!Exists(filename))
    {
-        WARN_LOG(COMMON, "Delete: %s does not exist", filename.c_str());
+        LOG_WARNING(Common_Filesystem, "%s does not exist", filename.c_str());
        return true;
    }
    // We can't delete a directory
    if (IsDirectory(filename))
    {
-        WARN_LOG(COMMON, "Delete failed: %s is a directory", filename.c_str());
+        LOG_ERROR(Common_Filesystem, "Failed: %s is a directory", filename.c_str());
        return false;
    }
 #ifdef _WIN32
    if (!DeleteFile(Common::UTF8ToTStr(filename).c_str()))
    {
-        WARN_LOG(COMMON, "Delete: DeleteFile failed on %s: %s", 
+        LOG_ERROR(Common_Filesystem, "DeleteFile failed on %s: %s",
                 filename.c_str(), GetLastErrorMsg());
        return false;
    }
 #else
    if (unlink(filename.c_str()) == -1) {
-        WARN_LOG(COMMON, "Delete: unlink failed on %s: %s", 
+        LOG_ERROR(Common_Filesystem, "unlink failed on %s: %s",
                 filename.c_str(), GetLastErrorMsg());
        return false;
    }
@@ -138,17 +138,17 @@ bool Delete(const std::string &filename)
 // Returns true if successful, or path already exists.
 bool CreateDir(const std::string &path)
 {
-    INFO_LOG(COMMON, "CreateDir: directory %s", path.c_str());
+    LOG_TRACE(Common_Filesystem, "directory %s", path.c_str());
 #ifdef _WIN32
-    if (::CreateDirectory(Common::UTF8ToTStr(path).c_str(), NULL))
+    if (::CreateDirectory(Common::UTF8ToTStr(path).c_str(), nullptr))
        return true;
    DWORD error = GetLastError();
    if (error == ERROR_ALREADY_EXISTS)
    {
-        WARN_LOG(COMMON, "CreateDir: CreateDirectory failed on %s: already exists", path.c_str());
+        LOG_WARNING(Common_Filesystem, "CreateDirectory failed on %s: already exists", path.c_str());
        return true;
    }
-    ERROR_LOG(COMMON, "CreateDir: CreateDirectory failed on %s: %i", path.c_str(), error);
+    LOG_ERROR(Common_Filesystem, "CreateDirectory failed on %s: %i", path.c_str(), error);
    return false;
 #else
    if (mkdir(path.c_str(), 0755) == 0)
@@ -158,11 +158,11 @@ bool CreateDir(const std::string &path)
    if (err == EEXIST)
    {
-        WARN_LOG(COMMON, "CreateDir: mkdir failed on %s: already exists", path.c_str());
+        LOG_WARNING(Common_Filesystem, "mkdir failed on %s: already exists", path.c_str());
        return true;
    }
-    ERROR_LOG(COMMON, "CreateDir: mkdir failed on %s: %s", path.c_str(), strerror(err));
+    LOG_ERROR(Common_Filesystem, "mkdir failed on %s: %s", path.c_str(), strerror(err));
    return false;
 #endif
 }
@@ -171,11 +171,11 @@ bool CreateDir(const std::string &path)
 bool CreateFullPath(const std::string &fullPath)
 {
    int panicCounter = 100;
-    INFO_LOG(COMMON, "CreateFullPath: path %s", fullPath.c_str());
+    LOG_TRACE(Common_Filesystem, "path %s", fullPath.c_str());
    if (FileUtil::Exists(fullPath))
    {
-        INFO_LOG(COMMON, "CreateFullPath: path exists %s", fullPath.c_str());
+        LOG_WARNING(Common_Filesystem, "path exists %s", fullPath.c_str());
        return true;
    }
@@ -192,7 +192,7 @@ bool CreateFullPath(const std::string &fullPath)
        // Include the '/' so the first call is CreateDir("/") rather than CreateDir("")
        std::string const subPath(fullPath.substr(0, position + 1));
        if (!FileUtil::IsDirectory(subPath) && !FileUtil::CreateDir(subPath)) {
-            ERROR_LOG(COMMON, "CreateFullPath: directory creation failed");
+            LOG_ERROR(Common, "CreateFullPath: directory creation failed");
            return false;
        }
@@ -200,7 +200,7 @@ bool CreateFullPath(const std::string &fullPath)
        panicCounter--;
        if (panicCounter <= 0)
        {
-            ERROR_LOG(COMMON, "CreateFullPath: directory structure is too deep");
+            LOG_ERROR(Common, "CreateFullPath: directory structure is too deep");
            return false;
        }
        position++;
@@ -211,12 +211,12 @@ bool CreateFullPath(const std::string &fullPath)
 // Deletes a directory filename, returns true on success
 bool DeleteDir(const std::string &filename)
 {
-    INFO_LOG(COMMON, "DeleteDir: directory %s", filename.c_str());
+    LOG_INFO(Common_Filesystem, "directory %s", filename.c_str());
    // check if a directory
    if (!FileUtil::IsDirectory(filename))
    {
-        ERROR_LOG(COMMON, "DeleteDir: Not a directory %s", filename.c_str());
+        LOG_ERROR(Common_Filesystem, "Not a directory %s", filename.c_str());
        return false;
    }
@@ -227,33 +227,33 @@ bool DeleteDir(const std::string &filename)
    if (rmdir(filename.c_str()) == 0)
        return true;
 #endif
-    ERROR_LOG(COMMON, "DeleteDir: %s: %s", filename.c_str(), GetLastErrorMsg());
+    LOG_ERROR(Common_Filesystem, "failed %s: %s", filename.c_str(), GetLastErrorMsg());
    return false;
 }
-// renames file srcFilename to destFilename, returns true on success 
+// renames file srcFilename to destFilename, returns true on success
 bool Rename(const std::string &srcFilename, const std::string &destFilename)
 {
-    INFO_LOG(COMMON, "Rename: %s --> %s", 
+    LOG_TRACE(Common_Filesystem, "%s --> %s",
            srcFilename.c_str(), destFilename.c_str());
    if (rename(srcFilename.c_str(), destFilename.c_str()) == 0)
        return true;
-    ERROR_LOG(COMMON, "Rename: failed %s --> %s: %s", 
+    LOG_ERROR(Common_Filesystem, "failed %s --> %s: %s",
              srcFilename.c_str(), destFilename.c_str(), GetLastErrorMsg());
    return false;
 }
-// copies file srcFilename to destFilename, returns true on success 
+// copies file srcFilename to destFilename, returns true on success
 bool Copy(const std::string &srcFilename, const std::string &destFilename)
 {
-    INFO_LOG(COMMON, "Copy: %s --> %s", 
+    LOG_TRACE(Common_Filesystem, "%s --> %s",
            srcFilename.c_str(), destFilename.c_str());
 #ifdef _WIN32
    if (CopyFile(Common::UTF8ToTStr(srcFilename).c_str(), Common::UTF8ToTStr(destFilename).c_str(), FALSE))
        return true;
-    ERROR_LOG(COMMON, "Copy: failed %s --> %s: %s", 
+    LOG_ERROR(Common_Filesystem, "failed %s --> %s: %s",
            srcFilename.c_str(), destFilename.c_str(), GetLastErrorMsg());
    return false;
 #else
@@ -267,7 +267,7 @@ bool Copy(const std::string &srcFilename, const std::string &destFilename)
    FILE *input = fopen(srcFilename.c_str(), "rb");
    if (!input)
    {
-        ERROR_LOG(COMMON, "Copy: input failed %s --> %s: %s", 
+        LOG_ERROR(Common_Filesystem, "opening input failed %s --> %s: %s",
                srcFilename.c_str(), destFilename.c_str(), GetLastErrorMsg());
        return false;
    }
@@ -277,7 +277,7 @@ bool Copy(const std::string &srcFilename, const std::string &destFilename)
    if (!output)
    {
        fclose(input);
-        ERROR_LOG(COMMON, "Copy: output failed %s --> %s: %s", 
+        LOG_ERROR(Common_Filesystem, "opening output failed %s --> %s: %s",
                srcFilename.c_str(), destFilename.c_str(), GetLastErrorMsg());
        return false;
    }
@@ -291,8 +291,8 @@ bool Copy(const std::string &srcFilename, const std::string &destFilename)
        {
            if (ferror(input) != 0)
            {
-                ERROR_LOG(COMMON, 
+                LOG_ERROR(Common_Filesystem,
-                        "Copy: failed reading from source, %s --> %s: %s", 
+                        "failed reading from source, %s --> %s: %s",
                        srcFilename.c_str(), destFilename.c_str(), GetLastErrorMsg());
                goto bail;
            }
@@ -302,8 +302,8 @@ bool Copy(const std::string &srcFilename, const std::string &destFilename)
        int wnum = fwrite(buffer, sizeof(char), rnum, output);
        if (wnum != rnum)
        {
-            ERROR_LOG(COMMON, 
+            LOG_ERROR(Common_Filesystem,
-                    "Copy: failed writing to output, %s --> %s: %s", 
+                    "failed writing to output, %s --> %s: %s",
                    srcFilename.c_str(), destFilename.c_str(), GetLastErrorMsg());
            goto bail;
        }
@@ -326,16 +326,16 @@ u64 GetSize(const std::string &filename)
 {
    if (!Exists(filename))
    {
-        WARN_LOG(COMMON, "GetSize: failed %s: No such file", filename.c_str());
+        LOG_ERROR(Common_Filesystem, "failed %s: No such file", filename.c_str());
        return 0;
    }
    if (IsDirectory(filename))
    {
-        WARN_LOG(COMMON, "GetSize: failed %s: is a directory", filename.c_str());
+        LOG_ERROR(Common_Filesystem, "failed %s: is a directory", filename.c_str());
        return 0;
    }
-    
    struct stat64 buf;
 #ifdef _WIN32
    if (_tstat64(Common::UTF8ToTStr(filename).c_str(), &buf) == 0)
@@ -343,12 +343,12 @@ u64 GetSize(const std::string &filename)
    if (stat64(filename.c_str(), &buf) == 0)
 #endif
    {
-        DEBUG_LOG(COMMON, "GetSize: %s: %lld",
+        LOG_TRACE(Common_Filesystem, "%s: %lld",
                filename.c_str(), (long long)buf.st_size);
        return buf.st_size;
    }
-    ERROR_LOG(COMMON, "GetSize: Stat failed %s: %s",
+    LOG_ERROR(Common_Filesystem, "Stat failed %s: %s",
            filename.c_str(), GetLastErrorMsg());
    return 0;
 }
@@ -358,7 +358,7 @@ u64 GetSize(const int fd)
 {
    struct stat64 buf;
    if (fstat64(fd, &buf) != 0) {
-        ERROR_LOG(COMMON, "GetSize: stat failed %i: %s",
+        LOG_ERROR(Common_Filesystem, "GetSize: stat failed %i: %s",
            fd, GetLastErrorMsg());
        return 0;
    }
@@ -371,27 +371,27 @@ u64 GetSize(FILE *f)
    // can't use off_t here because it can be 32-bit
    u64 pos = ftello(f);
    if (fseeko(f, 0, SEEK_END) != 0) {
-        ERROR_LOG(COMMON, "GetSize: seek failed %p: %s",
+        LOG_ERROR(Common_Filesystem, "GetSize: seek failed %p: %s",
              f, GetLastErrorMsg());
        return 0;
    }
    u64 size = ftello(f);
    if ((size != pos) && (fseeko(f, pos, SEEK_SET) != 0)) {
-        ERROR_LOG(COMMON, "GetSize: seek failed %p: %s",
+        LOG_ERROR(Common_Filesystem, "GetSize: seek failed %p: %s",
              f, GetLastErrorMsg());
        return 0;
    }
    return size;
 }
-// creates an empty file filename, returns true on success 
+// creates an empty file filename, returns true on success
 bool CreateEmptyFile(const std::string &filename)
 {
-    INFO_LOG(COMMON, "CreateEmptyFile: %s", filename.c_str()); 
+    LOG_TRACE(Common_Filesystem, "%s", filename.c_str());
    if (!FileUtil::IOFile(filename, "wb"))
    {
-        ERROR_LOG(COMMON, "CreateEmptyFile: failed %s: %s",
+        LOG_ERROR(Common_Filesystem, "failed %s: %s",
                  filename.c_str(), GetLastErrorMsg());
        return false;
    }
@@ -404,7 +404,7 @@ bool CreateEmptyFile(const std::string &filename)
 // results into parentEntry. Returns the number of files+directories found
 u32 ScanDirectoryTree(const std::string &directory, FSTEntry& parentEntry)
 {
-    INFO_LOG(COMMON, "ScanDirectoryTree: directory %s", directory.c_str());
+    LOG_TRACE(Common_Filesystem, "directory %s", directory.c_str());
    // How many files + directories we found
    u32 foundEntries = 0;
 #ifdef _WIN32
@@ -423,7 +423,7 @@ u32 ScanDirectoryTree(const std::string &directory, FSTEntry& parentEntry)
        FSTEntry entry;
        const std::string virtualName(Common::TStrToUTF8(ffd.cFileName));
 #else
-    struct dirent dirent, *result = NULL;
+    struct dirent dirent, *result = nullptr;
    DIR *dirp = opendir(directory.c_str());
    if (!dirp)
@@ -437,7 +437,7 @@ u32 ScanDirectoryTree(const std::string &directory, FSTEntry& parentEntry)
 #endif
        // check for "." and ".."
        if (((virtualName[0] == '.') && (virtualName[1] == '\0')) ||
-                ((virtualName[0] == '.') && (virtualName[1] == '.') && 
+                ((virtualName[0] == '.') && (virtualName[1] == '.') &&
                 (virtualName[2] == '\0')))
            continue;
        entry.virtualName = virtualName;
@@ -452,14 +452,14 @@ u32 ScanDirectoryTree(const std::string &directory, FSTEntry& parentEntry)
            foundEntries += (u32)entry.size;
        }
        else
-        { // is a file 
+        { // is a file
            entry.isDirectory = false;
            entry.size = GetSize(entry.physicalName.c_str());
        }
        ++foundEntries;
        // Push into the tree
-        parentEntry.children.push_back(entry);        
+        parentEntry.children.push_back(entry);
-#ifdef _WIN32 
+#ifdef _WIN32
    } while (FindNextFile(hFind, &ffd) != 0);
    FindClose(hFind);
 #else
@@ -474,7 +474,7 @@ u32 ScanDirectoryTree(const std::string &directory, FSTEntry& parentEntry)
 // Deletes the given directory and anything under it. Returns true on success.
 bool DeleteDirRecursively(const std::string &directory)
 {
-    INFO_LOG(COMMON, "DeleteDirRecursively: %s", directory.c_str());
+    LOG_TRACE(Common_Filesystem, "%s", directory.c_str());
 #ifdef _WIN32
    // Find the first file in the directory.
    WIN32_FIND_DATA ffd;
@@ -491,7 +491,7 @@ bool DeleteDirRecursively(const std::string &directory)
    {
        const std::string virtualName(Common::TStrToUTF8(ffd.cFileName));
 #else
-    struct dirent dirent, *result = NULL;
+    struct dirent dirent, *result = nullptr;
    DIR *dirp = opendir(directory.c_str());
    if (!dirp)
        return false;
@@ -504,7 +504,7 @@ bool DeleteDirRecursively(const std::string &directory)
        // check for "." and ".."
        if (((virtualName[0] == '.') && (virtualName[1] == '\0')) ||
-            ((virtualName[0] == '.') && (virtualName[1] == '.') && 
+            ((virtualName[0] == '.') && (virtualName[1] == '.') &&
             (virtualName[2] == '\0')))
            continue;
@@ -540,7 +540,7 @@ bool DeleteDirRecursively(const std::string &directory)
    closedir(dirp);
 #endif
    FileUtil::DeleteDir(directory);
-        
    return true;
 }
@@ -552,7 +552,7 @@ void CopyDir(const std::string &source_path, const std::string &dest_path)
    if (!FileUtil::Exists(source_path)) return;
    if (!FileUtil::Exists(dest_path)) FileUtil::CreateFullPath(dest_path);
-    struct dirent dirent, *result = NULL;
+    struct dirent dirent, *result = nullptr;
    DIR *dirp = opendir(source_path.c_str());
    if (!dirp) return;
@@ -585,12 +585,12 @@ void CopyDir(const std::string &source_path, const std::string &dest_path)
 std::string GetCurrentDir()
 {
    char *dir;
-    // Get the current working directory (getcwd uses malloc) 
+    // Get the current working directory (getcwd uses malloc)
-    if (!(dir = __getcwd(NULL, 0))) {
+    if (!(dir = __getcwd(nullptr, 0))) {
-        ERROR_LOG(COMMON, "GetCurrentDirectory failed: %s",
+        LOG_ERROR(Common_Filesystem, "GetCurrentDirectory failed: %s",
                GetLastErrorMsg());
-        return NULL;
+        return nullptr;
    }
    std::string strDir = dir;
    free(dir);
@@ -604,7 +604,7 @@ bool SetCurrentDir(const std::string &directory)
 }
 #if defined(__APPLE__)
-std::string GetBundleDirectory() 
+std::string GetBundleDirectory()
 {
    CFURLRef BundleRef;
    char AppBundlePath[MAXPATHLEN];
@@ -626,7 +626,7 @@ std::string& GetExeDirectory()
    if (DolphinPath.empty())
    {
        TCHAR Dolphin_exe_Path[2048];
-        GetModuleFileName(NULL, Dolphin_exe_Path, 2048);
+        GetModuleFileName(nullptr, Dolphin_exe_Path, 2048);
        DolphinPath = Common::TStrToUTF8(Dolphin_exe_Path);
        DolphinPath = DolphinPath.substr(0, DolphinPath.find_last_of('\\'));
    }
@@ -647,7 +647,7 @@ std::string GetSysDirectory()
 #endif
    sysDir += DIR_SEP;
-    INFO_LOG(COMMON, "GetSysDirectory: Setting to %s:", sysDir.c_str());
+    LOG_DEBUG(Common_Filesystem, "Setting to %s:", sysDir.c_str());
    return sysDir;
 }
@@ -666,8 +666,8 @@ const std::string& GetUserPath(const unsigned int DirIDX, const std::string &new
        if (FileUtil::Exists(ROOT_DIR DIR_SEP USERDATA_DIR))
            paths[D_USER_IDX] = ROOT_DIR DIR_SEP USERDATA_DIR DIR_SEP;
        else
-            paths[D_USER_IDX] = std::string(getenv("HOME") ? 
+            paths[D_USER_IDX] = std::string(getenv("HOME") ?
-                getenv("HOME") : getenv("PWD") ? 
+                getenv("HOME") : getenv("PWD") ?
                getenv("PWD") : "") + DIR_SEP EMU_DATA_DIR DIR_SEP;
 #endif
@@ -676,6 +676,8 @@ const std::string& GetUserPath(const unsigned int DirIDX, const std::string &new
        paths[D_MAPS_IDX]           = paths[D_USER_IDX] + MAPS_DIR DIR_SEP;
        paths[D_CACHE_IDX]          = paths[D_USER_IDX] + CACHE_DIR DIR_SEP;
        paths[D_SDMC_IDX]           = paths[D_USER_IDX] + SDMC_DIR DIR_SEP;
+        paths[D_SAVEDATA_IDX]       = paths[D_USER_IDX] + SAVEDATA_DIR DIR_SEP;
+        paths[D_SYSDATA_IDX]        = paths[D_USER_IDX] + SYSDATA_DIR DIR_SEP;
        paths[D_SHADERCACHE_IDX]    = paths[D_USER_IDX] + SHADERCACHE_DIR DIR_SEP;
        paths[D_SHADERS_IDX]        = paths[D_USER_IDX] + SHADERS_DIR DIR_SEP;
        paths[D_STATESAVES_IDX]     = paths[D_USER_IDX] + STATESAVES_DIR DIR_SEP;
@@ -694,7 +696,7 @@ const std::string& GetUserPath(const unsigned int DirIDX, const std::string &new
    {
        if (!FileUtil::IsDirectory(newPath))
        {
-            WARN_LOG(COMMON, "Invalid path specified %s", newPath.c_str());
+            LOG_ERROR(Common_Filesystem, "Invalid path specified %s", newPath.c_str());
            return paths[DirIDX];
        }
        else
@@ -717,6 +719,7 @@ const std::string& GetUserPath(const unsigned int DirIDX, const std::string &new
            paths[D_MAPS_IDX]           = paths[D_USER_IDX] + MAPS_DIR DIR_SEP;
            paths[D_CACHE_IDX]          = paths[D_USER_IDX] + CACHE_DIR DIR_SEP;
            paths[D_SDMC_IDX]           = paths[D_USER_IDX] + SDMC_DIR DIR_SEP;
+            paths[D_SAVEDATA_IDX]       = paths[D_USER_IDX] + SAVEDATA_DIR DIR_SEP;
            paths[D_SHADERCACHE_IDX]    = paths[D_USER_IDX] + SHADERCACHE_DIR DIR_SEP;
            paths[D_SHADERS_IDX]        = paths[D_USER_IDX] + SHADERS_DIR DIR_SEP;
            paths[D_STATESAVES_IDX]     = paths[D_USER_IDX] + STATESAVES_DIR DIR_SEP;
@@ -749,23 +752,10 @@ const std::string& GetUserPath(const unsigned int DirIDX, const std::string &new
            paths[F_MAINLOG_IDX]        = paths[D_LOGS_IDX] + MAIN_LOG;
        }
    }
-    
    return paths[DirIDX];
 }
-//std::string GetThemeDir(const std::string& theme_name)
-//{
-//    std::string dir = FileUtil::GetUserPath(D_THEMES_IDX) + theme_name + "/";
-//
-//#if !defined(_WIN32)
-//    // If theme does not exist in user's dir load from shared directory
-//    if (!FileUtil::Exists(dir))
-//        dir = SHARED_USER_DIR THEMES_DIR "/" + theme_name + "/";
-//#endif
-//    
-//    return dir;
-//}
 size_t WriteStringToFile(bool text_file, const std::string &str, const char *filename)
 {
    return FileUtil::IOFile(filename, text_file ? "w" : "wb").WriteBytes(str.data(), str.size());
@@ -826,7 +816,7 @@ void SplitFilename83(const std::string& filename, std::array<char, 9>& short_nam
 }
 IOFile::IOFile()
-    : m_file(NULL), m_good(true)
+    : m_file(nullptr), m_good(true)
 {}
 IOFile::IOFile(std::FILE* file)
@@ -834,7 +824,7 @@ IOFile::IOFile(std::FILE* file)
 {}
 IOFile::IOFile(const std::string& filename, const char openmode[])
-    : m_file(NULL), m_good(true)
+    : m_file(nullptr), m_good(true)
 {
    Open(filename, openmode);
 }
@@ -845,7 +835,7 @@ IOFile::~IOFile()
 }
 IOFile::IOFile(IOFile&& other)
-    : m_file(NULL), m_good(true)
+    : m_file(nullptr), m_good(true)
 {
    Swap(other);
 }
@@ -880,14 +870,14 @@ bool IOFile::Close()
    if (!IsOpen() || 0 != std::fclose(m_file))
        m_good = false;
-    m_file = NULL;
+    m_file = nullptr;
    return m_good;
 }
 std::FILE* IOFile::ReleaseHandle()
 {
    std::FILE* const ret = m_file;
-    m_file = NULL;
+    m_file = nullptr;
    return ret;
 }
diff --git a/src/common/file_util.h b/src/common/file_util.h
index 173ce6623..e691b6139 100644
--- a/src/common/file_util.h
+++ b/src/common/file_util.h
@@ -16,33 +16,35 @@
 // User directory indices for GetUserPath
 enum {
-        D_USER_IDX,
+    D_USER_IDX,
-        D_ROOT_IDX,
+    D_ROOT_IDX,
-        D_CONFIG_IDX,
+    D_CONFIG_IDX,
-        D_GAMECONFIG_IDX,
+    D_GAMECONFIG_IDX,
-        D_MAPS_IDX,
+    D_MAPS_IDX,
-        D_CACHE_IDX,
+    D_CACHE_IDX,
-        D_SHADERCACHE_IDX,
+    D_SHADERCACHE_IDX,
-        D_SHADERS_IDX,
+    D_SHADERS_IDX,
-        D_STATESAVES_IDX,
+    D_STATESAVES_IDX,
-        D_SCREENSHOTS_IDX,
+    D_SCREENSHOTS_IDX,
-        D_SDMC_IDX,
+    D_SDMC_IDX,
-        D_HIRESTEXTURES_IDX,
+    D_SAVEDATA_IDX,
-        D_DUMP_IDX,
+    D_SYSDATA_IDX,
-        D_DUMPFRAMES_IDX,
+    D_HIRESTEXTURES_IDX,
-        D_DUMPAUDIO_IDX,
+    D_DUMP_IDX,
-        D_DUMPTEXTURES_IDX,
+    D_DUMPFRAMES_IDX,
-        D_DUMPDSP_IDX,
+    D_DUMPAUDIO_IDX,
-        D_LOGS_IDX,
+    D_DUMPTEXTURES_IDX,
-        D_SYSCONF_IDX,
+    D_DUMPDSP_IDX,
-        F_EMUCONFIG_IDX,
+    D_LOGS_IDX,
-        F_DEBUGGERCONFIG_IDX,
+    D_SYSCONF_IDX,
-        F_LOGGERCONFIG_IDX,
+    F_EMUCONFIG_IDX,
-        F_MAINLOG_IDX,
+    F_DEBUGGERCONFIG_IDX,
-        F_RAMDUMP_IDX,
+    F_LOGGERCONFIG_IDX,
-        F_ARAMDUMP_IDX,
+    F_MAINLOG_IDX,
-        F_SYSCONF_IDX,
+    F_RAMDUMP_IDX,
-        NUM_PATH_INDICES
+    F_ARAMDUMP_IDX,
+    F_SYSCONF_IDX,
+    NUM_PATH_INDICES
 };
 namespace FileUtil
@@ -51,11 +53,11 @@ namespace FileUtil
 // FileSystem tree node/
 struct FSTEntry
 {
-        bool isDirectory;
+    bool isDirectory;
-        u64 size;                                               // file length or number of entries from children
+    u64 size;                       // file length or number of entries from children
-        std::string physicalName;               // name on disk
+    std::string physicalName;       // name on disk
-        std::string virtualName;                // name in FST names table
+    std::string virtualName;        // name in FST names table
-        std::vector<FSTEntry> children;
+    std::vector<FSTEntry> children;
 };
 // Returns true if file filename exists
@@ -148,86 +150,86 @@ void SplitFilename83(const std::string& filename, std::array<char, 9>& short_nam
 class IOFile : public NonCopyable
 {
 public:
-        IOFile();
+    IOFile();
-        IOFile(std::FILE* file);
+    IOFile(std::FILE* file);
-        IOFile(const std::string& filename, const char openmode[]);
+    IOFile(const std::string& filename, const char openmode[]);
-        ~IOFile();
+    ~IOFile();
-        IOFile(IOFile&& other);
+    IOFile(IOFile&& other);
-        IOFile& operator=(IOFile&& other);
+    IOFile& operator=(IOFile&& other);
-        void Swap(IOFile& other);
+    void Swap(IOFile& other);
-        bool Open(const std::string& filename, const char openmode[]);
+    bool Open(const std::string& filename, const char openmode[]);
-        bool Close();
+    bool Close();
-        template <typename T>
+    template <typename T>
-        size_t ReadArray(T* data, size_t length)
+    size_t ReadArray(T* data, size_t length)
-        {
+    {
-                if (!IsOpen()) {
+        if (!IsOpen()) {
-                        m_good = false;
+            m_good = false;
-                        return -1;
+            return -1;
-                }
+        }
-                size_t items_read = std::fread(data, sizeof(T), length, m_file);
+        size_t items_read = std::fread(data, sizeof(T), length, m_file);
-                if (items_read != length)
+        if (items_read != length)
-                        m_good = false;
+            m_good = false;
-                return items_read;
+        return items_read;
-        }
+    }
-        template <typename T>
+    template <typename T>
-        size_t WriteArray(const T* data, size_t length)
+    size_t WriteArray(const T* data, size_t length)
-        {
+    {
-                if (!IsOpen()) {
+        if (!IsOpen()) {
-                        m_good = false;
+            m_good = false;
-                        return -1;
+            return -1;
-                }
+        }
-                size_t items_written = std::fwrite(data, sizeof(T), length, m_file);
+        size_t items_written = std::fwrite(data, sizeof(T), length, m_file);
-                if (items_written != length)
+        if (items_written != length)
-                        m_good = false;
+            m_good = false;
-                return items_written;
+        return items_written;
-        }
+    }
-        size_t ReadBytes(void* data, size_t length)
+    size_t ReadBytes(void* data, size_t length)
-        {
+    {
-                return ReadArray(reinterpret_cast<char*>(data), length);
+        return ReadArray(reinterpret_cast<char*>(data), length);
-        }
+    }
-        size_t WriteBytes(const void* data, size_t length)
+    size_t WriteBytes(const void* data, size_t length)
-        {
+    {
-                return WriteArray(reinterpret_cast<const char*>(data), length);
+        return WriteArray(reinterpret_cast<const char*>(data), length);
-        }
+    }
-        bool IsOpen() { return NULL != m_file; }
+    bool IsOpen() { return nullptr != m_file; }
-        // m_good is set to false when a read, write or other function fails
+    // m_good is set to false when a read, write or other function fails
-        bool IsGood() { return m_good; }
+    bool IsGood() {    return m_good; }
-        operator void*() { return m_good ? m_file : NULL; }
+    operator void*() { return m_good ? m_file : nullptr; }
-        std::FILE* ReleaseHandle();
+    std::FILE* ReleaseHandle();
-        std::FILE* GetHandle() { return m_file; }
+    std::FILE* GetHandle() { return m_file; }
-        void SetHandle(std::FILE* file);
+    void SetHandle(std::FILE* file);
-        bool Seek(s64 off, int origin);
+    bool Seek(s64 off, int origin);
-        u64 Tell();
+    u64 Tell();
-        u64 GetSize();
+    u64 GetSize();
-        bool Resize(u64 size);
+    bool Resize(u64 size);
-        bool Flush();
+    bool Flush();
-        // clear error state
+    // clear error state
-        void Clear() { m_good = true; std::clearerr(m_file); }
+    void Clear() { m_good = true; std::clearerr(m_file); }
-        std::FILE* m_file;
+    std::FILE* m_file;
-        bool m_good;
+    bool m_good;
 private:
-        IOFile(IOFile&);
+    IOFile(IOFile&);
-        IOFile& operator=(IOFile& other);
+    IOFile& operator=(IOFile& other);
 };
 }  // namespace
@@ -237,8 +239,8 @@ template <typename T>
 void OpenFStream(T& fstream, const std::string& filename, std::ios_base::openmode openmode)
 {
 #ifdef _WIN32
-        fstream.open(Common::UTF8ToTStr(filename).c_str(), openmode);
+    fstream.open(Common::UTF8ToTStr(filename).c_str(), openmode);
 #else
-        fstream.open(filename.c_str(), openmode);
+    fstream.open(filename.c_str(), openmode);
 #endif
 }
diff --git a/src/common/hash.cpp b/src/common/hash.cpp
index d2ebc7341..2ddcfe6b7 100644
--- a/src/common/hash.cpp
+++ b/src/common/hash.cpp
@@ -115,15 +115,15 @@ inline u64 getblock(const u64 * p, int i)
 inline void bmix64(u64 & h1, u64 & h2, u64 & k1, u64 & k2, u64 & c1, u64 & c2)
 {
-    k1 *= c1; 
+    k1 *= c1;
-    k1  = _rotl64(k1,23); 
+    k1  = _rotl64(k1,23);
    k1 *= c2;
    h1 ^= k1;
    h1 += h2;
    h2 = _rotl64(h2,41);
-    k2 *= c2; 
+    k2 *= c2;
    k2  = _rotl64(k2,23);
    k2 *= c1;
    h2 ^= k2;
@@ -250,7 +250,7 @@ u64 GetCRC32(const u8 *src, int len, u32 samples)
 }
-/* 
+/*
 * NOTE: This hash function is used for custom texture loading/dumping, so
 * it should not be changed, which would require all custom textures to be
 * recalculated for their new hash values. If the hashing function is
@@ -273,7 +273,7 @@ u64 GetHashHiresTexture(const u8 *src, int len, u32 samples)
        u64 k = data[0];
        data+=Step;
        k *= m;
-        k ^= k >> r; 
+        k ^= k >> r;
        k *= m;
        h ^= k;
        h *= m;
@@ -292,13 +292,13 @@ u64 GetHashHiresTexture(const u8 *src, int len, u32 samples)
    case 1: h ^= u64(data2[0]);
            h *= m;
    };
- 
    h ^= h >> r;
    h *= m;
    h ^= h >> r;
    return h;
-} 
+}
 #else
 // CRC32 hash using the SSE4.2 instruction
 u64 GetCRC32(const u8 *src, int len, u32 samples)
@@ -351,15 +351,15 @@ inline u32 fmix32(u32 h)
 inline void bmix32(u32 & h1, u32 & h2, u32 & k1, u32 & k2, u32 & c1, u32 & c2)
 {
-    k1 *= c1; 
+    k1 *= c1;
-    k1  = _rotl(k1,11); 
+    k1  = _rotl(k1,11);
    k1 *= c2;
    h1 ^= k1;
    h1 += h2;
    h2 = _rotl(h2,17);
-    k2 *= c2; 
+    k2 *= c2;
    k2  = _rotl(k2,11);
    k2 *= c1;
    h2 ^= k2;
@@ -405,7 +405,7 @@ u64 GetMurmurHash3(const u8* src, int len, u32 samples)
    //----------
    // tail
-    
    const u8 * tail = (const u8*)(data + nblocks*8);
    u32 k1 = 0;
@@ -439,7 +439,7 @@ u64 GetMurmurHash3(const u8* src, int len, u32 samples)
    out[0] = h1;
    out[1] = h2;
-    
    return *((u64 *)&out);
 }
@@ -463,11 +463,11 @@ u64 GetHashHiresTexture(const u8 *src, int len, u32 samples)
    {
        u64 k = data[0];
        data+=Step;
-        k *= m; 
+        k *= m;
-        k ^= k >> r; 
+        k ^= k >> r;
        k *= m;
        h ^= k;
-        h *= m; 
+        h *= m;
    }
    const u8 * data2 = (const u8*)end;
@@ -483,7 +483,7 @@ u64 GetHashHiresTexture(const u8 *src, int len, u32 samples)
    case 1: h ^= u64(data2[0]);
            h *= m;
    };
- 
    h ^= h >> r;
    h *= m;
    h ^= h >> r;
diff --git a/src/common/linear_disk_cache.h b/src/common/linear_disk_cache.h
index 96dce3155..bb1b5174f 100644
--- a/src/common/linear_disk_cache.h
+++ b/src/common/linear_disk_cache.h
@@ -64,13 +64,13 @@ public:
        m_file.seekg(0, std::ios::beg);
        std::fstream::pos_type start_pos = m_file.tellg();
        std::streamoff file_size = end_pos - start_pos;
-        
        if (m_file.is_open() && ValidateHeader())
        {
            // good header, read some key/value pairs
            K key;
-            V *value = NULL;
+            V *value = nullptr;
            u32 value_size;
            u32 entry_number;
@@ -87,7 +87,7 @@ public:
                // read key/value and pass to reader
                if (Read(&key) &&
-                    Read(value, value_size) && 
+                    Read(value, value_size) &&
                    Read(&entry_number) &&
                    entry_number == m_num_entries+1)
                 {
@@ -115,7 +115,7 @@ public:
        WriteHeader();
        return 0;
    }
-    
    void Sync()
    {
        m_file.flush();
diff --git a/src/common/log.h b/src/common/log.h
index bfd73f8a5..663eda9ad 100644
--- a/src/common/log.h
+++ b/src/common/log.h
@@ -4,104 +4,9 @@
 #pragma once
-#ifndef LOGGING
+#include "common/common_funcs.h"
-#define LOGGING
+#include "common/msg_handler.h"
-#endif
+#include "common/logging/log.h"
-enum {
-    OS_LEVEL,       // Printed by the emulated operating system
-    NOTICE_LEVEL,   // VERY important information that is NOT errors. Like startup and OSReports.
-    ERROR_LEVEL,    // Critical errors 
-    WARNING_LEVEL,  // Something is suspicious.
-    INFO_LEVEL,     // General information.
-    DEBUG_LEVEL,    // Detailed debugging - might make things slow.
-};
-namespace LogTypes
-{
-enum LOG_TYPE {
-    ACTIONREPLAY,
-    AUDIO,
-    AUDIO_INTERFACE,
-    BOOT,
-    COMMANDPROCESSOR,
-    COMMON,
-    CONSOLE,
-    CONFIG,
-    DISCIO,
-    FILEMON,
-    DSPHLE,
-    DSPLLE,
-    DSP_MAIL,
-    DSPINTERFACE,
-    DVDINTERFACE,
-    DYNA_REC,
-    EXPANSIONINTERFACE,
-    GDB_STUB,
-    ARM11,
-    GSP,
-    OSHLE,
-    MASTER_LOG,
-    MEMMAP,
-    MEMCARD_MANAGER,
-    OSREPORT,
-    PAD, 
-    PROCESSORINTERFACE,
-    PIXELENGINE,
-    SERIALINTERFACE,
-    SP1,
-    STREAMINGINTERFACE,
-    VIDEO,
-    VIDEOINTERFACE,
-    LOADER,
-    FILESYS,
-    WII_IPC_DVD,
-    WII_IPC_ES,
-    WII_IPC_FILEIO,
-    WII_IPC_HID,
-    KERNEL,
-    SVC,
-    NDMA,
-    HLE,
-    RENDER,
-    GPU,
-    HW,
-    TIME,
-    NETPLAY,
-    NUMBER_OF_LOGS // Must be last
-};
-// FIXME: should this be removed?
-enum LOG_LEVELS {
-    LOS = OS_LEVEL,
-    LNOTICE = NOTICE_LEVEL,
-    LERROR = ERROR_LEVEL,
-    LWARNING = WARNING_LEVEL,
-    LINFO = INFO_LEVEL,
-    LDEBUG = DEBUG_LEVEL,
-};
-#define LOGTYPES_LEVELS LogTypes::LOG_LEVELS
-#define LOGTYPES_TYPE LogTypes::LOG_TYPE
-}  // namespace
-void GenericLog(LOGTYPES_LEVELS level, LOGTYPES_TYPE type, const char*file, int line, 
-    const char* function, const char* fmt, ...)
-#ifdef __GNUC__
-        __attribute__((format(printf, 6, 7)))
-#endif
-        ;
-#if defined LOGGING || defined _DEBUG || defined DEBUGFAST
-#define MAX_LOGLEVEL LDEBUG
-#else
-#ifndef MAX_LOGLEVEL
-#define MAX_LOGLEVEL LWARNING
-#endif // loglevel
-#endif // logging
 #ifdef _WIN32
 #ifndef __func__
@@ -109,29 +14,16 @@ void GenericLog(LOGTYPES_LEVELS level, LOGTYPES_TYPE type, const char*file, int
 #endif
 #endif
-// Let the compiler optimize this out
+#if _DEBUG
-#define GENERIC_LOG(t, v, ...) { \
-    if (v <= LogTypes::MAX_LOGLEVEL) \
-        GenericLog(v, t, __FILE__, __LINE__, __func__, __VA_ARGS__); \
-    }
-#define OS_LOG(t,...) do { GENERIC_LOG(LogTypes::t, LogTypes::LOS, __VA_ARGS__) } while (0)
-#define ERROR_LOG(t,...) do { GENERIC_LOG(LogTypes::t, LogTypes::LERROR, __VA_ARGS__) } while (0)
-#define WARN_LOG(t,...) do { GENERIC_LOG(LogTypes::t, LogTypes::LWARNING, __VA_ARGS__) } while (0)
-#define NOTICE_LOG(t,...) do { GENERIC_LOG(LogTypes::t, LogTypes::LNOTICE, __VA_ARGS__) } while (0)
-#define INFO_LOG(t,...) do { GENERIC_LOG(LogTypes::t, LogTypes::LINFO, __VA_ARGS__) } while (0)
-#define DEBUG_LOG(t,...) do { GENERIC_LOG(LogTypes::t, LogTypes::LDEBUG, __VA_ARGS__) } while (0)
-#if MAX_LOGLEVEL >= DEBUG_LEVEL
 #define _dbg_assert_(_t_, _a_) \
    if (!(_a_)) {\
-        ERROR_LOG(_t_, "Error...\n\n  Line: %d\n  File: %s\n  Time: %s\n\nIgnore and continue?", \
+        LOG_CRITICAL(_t_, "Error...\n\n  Line: %d\n  File: %s\n  Time: %s\n\nIgnore and continue?", \
                       __LINE__, __FILE__, __TIME__); \
        if (!PanicYesNo("*** Assertion (see log)***\n")) {Crash();} \
    }
 #define _dbg_assert_msg_(_t_, _a_, ...)\
    if (!(_a_)) {\
-        ERROR_LOG(_t_, __VA_ARGS__); \
+        LOG_CRITICAL(_t_, __VA_ARGS__); \
        if (!PanicYesNo(__VA_ARGS__)) {Crash();} \
    }
 #define _dbg_update_() Host_UpdateLogDisplay();
@@ -143,11 +35,10 @@ void GenericLog(LOGTYPES_LEVELS level, LOGTYPES_TYPE type, const char*file, int
 #define _dbg_assert_(_t_, _a_) {}
 #define _dbg_assert_msg_(_t_, _a_, _desc_, ...) {}
 #endif // dbg_assert
-#endif // MAX_LOGLEVEL DEBUG
+#endif
 #define _assert_(_a_) _dbg_assert_(MASTER_LOG, _a_)
-#ifndef GEKKO
 #ifdef _WIN32
 #define _assert_msg_(_t_, _a_, _fmt_, ...)        \
    if (!(_a_)) {\
@@ -159,6 +50,3 @@ void GenericLog(LOGTYPES_LEVELS level, LOGTYPES_TYPE type, const char*file, int
        if (!PanicYesNo(_fmt_, ##__VA_ARGS__)) {Crash();} \
    }
 #endif // WIN32
-#else // GEKKO
-#define _assert_msg_(_t_, _a_, _fmt_, ...)
-#endif
diff --git a/src/common/log_manager.cpp b/src/common/log_manager.cpp
deleted file mode 100644
index 4d590d98f..000000000
--- a/src/common/log_manager.cpp
+++ /dev/null
@@ -1,199 +0,0 @@
-// Copyright 2013 Dolphin Emulator Project
-// Licensed under GPLv2
-// Refer to the license.txt file included.
-#include <algorithm>
-#include "common/log_manager.h"
-#include "common/console_listener.h"
-#include "common/timer.h"
-#include "common/thread.h"
-void GenericLog(LogTypes::LOG_LEVELS level, LogTypes::LOG_TYPE type, const char* file, int line, 
-    const char* function, const char* fmt, ...)
-{
-    va_list args;
-    va_start(args, fmt);
-    if (LogManager::GetInstance()) {
-        LogManager::GetInstance()->Log(level, type,
-            file, line, function, fmt, args);
-    }
-    va_end(args);
-}
-LogManager *LogManager::m_logManager = NULL;
-LogManager::LogManager()
-{
-    // create log files
-    m_Log[LogTypes::MASTER_LOG]         = new LogContainer("*",                 "Master Log");
-    m_Log[LogTypes::BOOT]               = new LogContainer("BOOT",              "Boot");
-    m_Log[LogTypes::COMMON]             = new LogContainer("COMMON",            "Common");
-    m_Log[LogTypes::CONFIG]             = new LogContainer("CONFIG",            "Configuration");
-    m_Log[LogTypes::DISCIO]             = new LogContainer("DIO",               "Disc IO");
-    m_Log[LogTypes::FILEMON]            = new LogContainer("FileMon",           "File Monitor");
-    m_Log[LogTypes::PAD]                = new LogContainer("PAD",               "Pad");
-    m_Log[LogTypes::PIXELENGINE]        = new LogContainer("PE",                "PixelEngine");
-    m_Log[LogTypes::COMMANDPROCESSOR]   = new LogContainer("CP",                "CommandProc");
-    m_Log[LogTypes::VIDEOINTERFACE]     = new LogContainer("VI",                "VideoInt");
-    m_Log[LogTypes::SERIALINTERFACE]    = new LogContainer("SI",                "SerialInt");
-    m_Log[LogTypes::PROCESSORINTERFACE] = new LogContainer("PI",                "ProcessorInt");
-    m_Log[LogTypes::MEMMAP]             = new LogContainer("MI",                "MI & memmap");
-    m_Log[LogTypes::SP1]                = new LogContainer("SP1",               "Serial Port 1");
-    m_Log[LogTypes::STREAMINGINTERFACE] = new LogContainer("Stream",            "StreamingInt");
-    m_Log[LogTypes::DSPINTERFACE]       = new LogContainer("DSP",               "DSPInterface");
-    m_Log[LogTypes::DVDINTERFACE]       = new LogContainer("DVD",               "DVDInterface");
-    m_Log[LogTypes::GSP]                = new LogContainer("GSP",               "GSP");
-    m_Log[LogTypes::EXPANSIONINTERFACE] = new LogContainer("EXI",               "ExpansionInt");
-    m_Log[LogTypes::GDB_STUB]           = new LogContainer("GDB_STUB",          "GDB Stub");
-    m_Log[LogTypes::AUDIO_INTERFACE]    = new LogContainer("AI",                "AudioInt");
-    m_Log[LogTypes::ARM11]              = new LogContainer("ARM11",             "ARM11");
-    m_Log[LogTypes::OSHLE]              = new LogContainer("HLE",               "HLE");
-    m_Log[LogTypes::DSPHLE]             = new LogContainer("DSPHLE",            "DSP HLE");
-    m_Log[LogTypes::DSPLLE]             = new LogContainer("DSPLLE",            "DSP LLE");
-    m_Log[LogTypes::DSP_MAIL]           = new LogContainer("DSPMails",          "DSP Mails");
-    m_Log[LogTypes::VIDEO]              = new LogContainer("Video",             "Video Backend");
-    m_Log[LogTypes::AUDIO]              = new LogContainer("Audio",             "Audio Emulator");
-    m_Log[LogTypes::DYNA_REC]           = new LogContainer("JIT",               "JIT");
-    m_Log[LogTypes::CONSOLE]            = new LogContainer("CONSOLE",           "Dolphin Console");
-    m_Log[LogTypes::OSREPORT]           = new LogContainer("OSREPORT",          "OSReport");
-    m_Log[LogTypes::TIME]               = new LogContainer("Time",              "Core Timing");
-    m_Log[LogTypes::LOADER]             = new LogContainer("Loader",            "Loader");
-    m_Log[LogTypes::FILESYS]            = new LogContainer("FileSys",           "File System");
-    m_Log[LogTypes::WII_IPC_HID]        = new LogContainer("WII_IPC_HID",       "WII IPC HID");
-    m_Log[LogTypes::KERNEL]             = new LogContainer("KERNEL",            "KERNEL HLE");
-    m_Log[LogTypes::WII_IPC_DVD]        = new LogContainer("WII_IPC_DVD",       "WII IPC DVD");
-    m_Log[LogTypes::WII_IPC_ES]         = new LogContainer("WII_IPC_ES",        "WII IPC ES");
-    m_Log[LogTypes::WII_IPC_FILEIO]     = new LogContainer("WII_IPC_FILEIO",    "WII IPC FILEIO");
-    m_Log[LogTypes::RENDER]             = new LogContainer("RENDER",            "RENDER");
-    m_Log[LogTypes::GPU]                = new LogContainer("GPU",               "GPU");
-    m_Log[LogTypes::SVC]                = new LogContainer("SVC",               "Supervisor Call HLE");
-    m_Log[LogTypes::NDMA]               = new LogContainer("NDMA",              "NDMA");
-    m_Log[LogTypes::HLE]                = new LogContainer("HLE",               "High Level Emulation");
-    m_Log[LogTypes::HW]                 = new LogContainer("HW",                "Hardware");
-    m_Log[LogTypes::ACTIONREPLAY]       = new LogContainer("ActionReplay",      "ActionReplay");
-    m_Log[LogTypes::MEMCARD_MANAGER]    = new LogContainer("MemCard Manager",   "MemCard Manager");
-    m_Log[LogTypes::NETPLAY]            = new LogContainer("NETPLAY",           "Netplay");
-    m_fileLog = new FileLogListener(FileUtil::GetUserPath(F_MAINLOG_IDX).c_str());
-    m_consoleLog = new ConsoleListener();
-    m_debuggerLog = new DebuggerLogListener();
-    for (int i = 0; i < LogTypes::NUMBER_OF_LOGS; ++i)
-    {
-        m_Log[i]->SetEnable(true);
-        m_Log[i]->AddListener(m_fileLog);
-        m_Log[i]->AddListener(m_consoleLog);
-#ifdef _MSC_VER
-        if (IsDebuggerPresent())
-            m_Log[i]->AddListener(m_debuggerLog);
-#endif
-    }
-    m_consoleLog->Open();
-}
-LogManager::~LogManager()
-{
-    for (int i = 0; i < LogTypes::NUMBER_OF_LOGS; ++i)
-    {
-        m_logManager->RemoveListener((LogTypes::LOG_TYPE)i, m_fileLog);
-        m_logManager->RemoveListener((LogTypes::LOG_TYPE)i, m_consoleLog);
-        m_logManager->RemoveListener((LogTypes::LOG_TYPE)i, m_debuggerLog);
-    }
-    for (int i = 0; i < LogTypes::NUMBER_OF_LOGS; ++i)
-        delete m_Log[i];
-    delete m_fileLog;
-    delete m_consoleLog;
-    delete m_debuggerLog;
-}
-void LogManager::Log(LogTypes::LOG_LEVELS level, LogTypes::LOG_TYPE type, const char* file, 
-    int line, const char* function, const char *fmt, va_list args)
-{
-    char temp[MAX_MSGLEN];
-    char msg[MAX_MSGLEN * 2];
-    LogContainer *log = m_Log[type];
-    if (!log->IsEnabled() || level > log->GetLevel() || ! log->HasListeners())
-        return;
-    Common::CharArrayFromFormatV(temp, MAX_MSGLEN, fmt, args);
-    static const char level_to_char[7] = "ONEWID";
-    sprintf(msg, "%s %s:%u %c[%s] %s: %s\n", Common::Timer::GetTimeFormatted().c_str(), file, line, 
-        level_to_char[(int)level], log->GetShortName(), function, temp);
-    
-#ifdef ANDROID
-    Host_SysMessage(msg);    
-#endif
-    log->Trigger(level, msg);
-}
-void LogManager::Init()
-{
-    m_logManager = new LogManager();
-}
-void LogManager::Shutdown()
-{
-    delete m_logManager;
-    m_logManager = NULL;
-}
-LogContainer::LogContainer(const char* shortName, const char* fullName, bool enable)
-    : m_enable(enable)
-{
-    strncpy(m_fullName, fullName, 128);
-    strncpy(m_shortName, shortName, 32);
-    m_level = LogTypes::MAX_LOGLEVEL;
-}
-// LogContainer
-void LogContainer::AddListener(LogListener *listener)
-{
-    std::lock_guard<std::mutex> lk(m_listeners_lock);
-    m_listeners.insert(listener);
-}
-void LogContainer::RemoveListener(LogListener *listener)
-{
-    std::lock_guard<std::mutex> lk(m_listeners_lock);
-    m_listeners.erase(listener);
-}
-void LogContainer::Trigger(LogTypes::LOG_LEVELS level, const char *msg)
-{
-    std::lock_guard<std::mutex> lk(m_listeners_lock);
-    std::set<LogListener*>::const_iterator i;
-    for (i = m_listeners.begin(); i != m_listeners.end(); ++i)
-    {
-        (*i)->Log(level, msg);
-    }
-}
-FileLogListener::FileLogListener(const char *filename)
-{
-    OpenFStream(m_logfile, filename, std::ios::app);
-    SetEnable(true);
-}
-void FileLogListener::Log(LogTypes::LOG_LEVELS, const char *msg)
-{
-    if (!IsEnabled() || !IsValid())
-        return;
-    std::lock_guard<std::mutex> lk(m_log_lock);
-    m_logfile << msg << std::flush;
-}
-void DebuggerLogListener::Log(LogTypes::LOG_LEVELS, const char *msg)
-{
-#if _MSC_VER
-    ::OutputDebugStringA(msg);
-#endif
-}
diff --git a/src/common/log_manager.h b/src/common/log_manager.h
deleted file mode 100644
index de1d16ee5..000000000
--- a/src/common/log_manager.h
+++ /dev/null
@@ -1,166 +0,0 @@
-// Copyright 2013 Dolphin Emulator Project
-// Licensed under GPLv2
-// Refer to the license.txt file included.
-#pragma once
-#include "common/log.h"
-#include "common/string_util.h"
-#include "common/file_util.h"
-#include <cstring>
-#include <set>
-#include <mutex>
-#define MAX_MESSAGES 8000
-#define MAX_MSGLEN  1024
-// pure virtual interface
-class LogListener
-{
-public:
-    virtual ~LogListener() {}
-    virtual void Log(LogTypes::LOG_LEVELS, const char *msg) = 0;
-};
-class FileLogListener : public LogListener
-{
-public:
-    FileLogListener(const char *filename);
-    void Log(LogTypes::LOG_LEVELS, const char *msg) override;
-    bool IsValid() { return !m_logfile.fail(); }
-    bool IsEnabled() const { return m_enable; }
-    void SetEnable(bool enable) { m_enable = enable; }
-    const char* GetName() const { return "file"; }
-private:
-    std::mutex m_log_lock;
-    std::ofstream m_logfile;
-    bool m_enable;
-};
-class DebuggerLogListener : public LogListener
-{
-public:
-    void Log(LogTypes::LOG_LEVELS, const char *msg) override;
-};
-class LogContainer
-{
-public:
-    LogContainer(const char* shortName, const char* fullName, bool enable = false);
-    
-    const char* GetShortName() const { return m_shortName; }
-    const char* GetFullName() const { return m_fullName; }
-    void AddListener(LogListener* listener);
-    void RemoveListener(LogListener* listener);
-    void Trigger(LogTypes::LOG_LEVELS, const char *msg);
-    bool IsEnabled() const { return m_enable; }
-    void SetEnable(bool enable) { m_enable = enable; }
-    LogTypes::LOG_LEVELS GetLevel() const { return m_level;    }
-    void SetLevel(LogTypes::LOG_LEVELS level) {    m_level = level; }
-    bool HasListeners() const { return !m_listeners.empty(); }
-private:
-    char m_fullName[128];
-    char m_shortName[32];
-    bool m_enable;
-    LogTypes::LOG_LEVELS m_level;
-    std::mutex m_listeners_lock;
-    std::set<LogListener*> m_listeners;
-};
-class ConsoleListener;
-class LogManager : NonCopyable
-{
-private:
-    LogContainer* m_Log[LogTypes::NUMBER_OF_LOGS];
-    FileLogListener *m_fileLog;
-    ConsoleListener *m_consoleLog;
-    DebuggerLogListener *m_debuggerLog;
-    static LogManager *m_logManager;  // Singleton. Ugh.
-    LogManager();
-    ~LogManager();
-public:
-    static u32 GetMaxLevel() { return LogTypes::MAX_LOGLEVEL;    }
-    void Log(LogTypes::LOG_LEVELS level, LogTypes::LOG_TYPE type, const char* file, int line, 
-        const char* function, const char *fmt, va_list args);
-    void SetLogLevel(LogTypes::LOG_TYPE type, LogTypes::LOG_LEVELS level)
-    {
-        m_Log[type]->SetLevel(level);
-    }
-    void SetEnable(LogTypes::LOG_TYPE type, bool enable)
-    {
-        m_Log[type]->SetEnable(enable);
-    }
-    bool IsEnabled(LogTypes::LOG_TYPE type) const
-    {
-        return m_Log[type]->IsEnabled();
-    }
-    const char* GetShortName(LogTypes::LOG_TYPE type) const
-    {
-        return m_Log[type]->GetShortName();
-    }
-    const char* GetFullName(LogTypes::LOG_TYPE type) const
-    {
-        return m_Log[type]->GetFullName();
-    }
-    void AddListener(LogTypes::LOG_TYPE type, LogListener *listener)
-    {
-        m_Log[type]->AddListener(listener);
-    }
-    void RemoveListener(LogTypes::LOG_TYPE type, LogListener *listener)
-    {
-        m_Log[type]->RemoveListener(listener);
-    }
-    FileLogListener *GetFileListener() const
-    {
-        return m_fileLog;
-    }
-    ConsoleListener *GetConsoleListener() const
-    {
-        return m_consoleLog;
-    }
-    DebuggerLogListener *GetDebuggerListener() const
-    {
-        return m_debuggerLog;
-    }
-    static LogManager* GetInstance()
-    {
-        return m_logManager;
-    }
-    static void SetInstance(LogManager *logManager)
-    {
-        m_logManager = logManager;
-    }
-    static void Init();
-    static void Shutdown();
-};
diff --git a/src/common/logging/backend.cpp b/src/common/logging/backend.cpp
new file mode 100644
index 000000000..e79b84604
--- /dev/null
+++ b/src/common/logging/backend.cpp
@@ -0,0 +1,151 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2+
+// Refer to the license.txt file included.
+#include <algorithm>
+#include "common/log.h" // For _dbg_assert_
+#include "common/logging/backend.h"
+#include "common/logging/log.h"
+#include "common/logging/text_formatter.h"
+namespace Log {
+static std::shared_ptr<Logger> global_logger;
+/// Macro listing all log classes. Code should define CLS and SUB as desired before invoking this.
+#define ALL_LOG_CLASSES() \
+        CLS(Log) \
+        CLS(Common) \
+        SUB(Common, Filesystem) \
+        SUB(Common, Memory) \
+        CLS(Core) \
+        SUB(Core, ARM11) \
+        CLS(Config) \
+        CLS(Debug) \
+        SUB(Debug, Emulated) \
+        SUB(Debug, GPU) \
+        SUB(Debug, Breakpoint) \
+        CLS(Kernel) \
+        SUB(Kernel, SVC) \
+        CLS(Service) \
+        SUB(Service, SRV) \
+        SUB(Service, FS) \
+        SUB(Service, APT) \
+        SUB(Service, GSP) \
+        SUB(Service, AC) \
+        SUB(Service, PTM) \
+        SUB(Service, CFG) \
+        SUB(Service, DSP) \
+        SUB(Service, HID) \
+        CLS(HW) \
+        SUB(HW, Memory) \
+        SUB(HW, GPU) \
+        CLS(Frontend) \
+        CLS(Render) \
+        SUB(Render, Software) \
+        SUB(Render, OpenGL) \
+        CLS(Loader)
+Logger::Logger() {
+    // Register logging classes so that they can be queried at runtime
+    size_t parent_class;
+    all_classes.reserve((size_t)Class::Count);
+#define CLS(x) \
+        all_classes.push_back(Class::x); \
+        parent_class = all_classes.size() - 1;
+#define SUB(x, y) \
+        all_classes.push_back(Class::x##_##y); \
+        all_classes[parent_class].num_children += 1;
+    ALL_LOG_CLASSES()
+#undef CLS
+#undef SUB
+    // Ensures that ALL_LOG_CLASSES isn't missing any entries.
+    _dbg_assert_(Log, all_classes.size() == (size_t)Class::Count);
+}
+// GetClassName is a macro defined by Windows.h, grrr...
+const char* Logger::GetLogClassName(Class log_class) {
+    switch (log_class) {
+#define CLS(x) case Class::x: return #x;
+#define SUB(x, y) case Class::x##_##y: return #x "." #y;
+        ALL_LOG_CLASSES()
+#undef CLS
+#undef SUB
+    }
+    return "Unknown";
+}
+const char* Logger::GetLevelName(Level log_level) {
+#define LVL(x) case Level::x: return #x
+    switch (log_level) {
+        LVL(Trace);
+        LVL(Debug);
+        LVL(Info);
+        LVL(Warning);
+        LVL(Error);
+        LVL(Critical);
+    }
+    return "Unknown";
+#undef LVL
+}
+void Logger::LogMessage(Entry entry) {
+    ring_buffer.Push(std::move(entry));
+}
+size_t Logger::GetEntries(Entry* out_buffer, size_t buffer_len) {
+    return ring_buffer.BlockingPop(out_buffer, buffer_len);
+}
+std::shared_ptr<Logger> InitGlobalLogger() {
+    global_logger = std::make_shared<Logger>();
+    return global_logger;
+}
+Entry CreateEntry(Class log_class, Level log_level,
+                        const char* filename, unsigned int line_nr, const char* function,
+                        const char* format, va_list args) {
+    using std::chrono::steady_clock;
+    using std::chrono::duration_cast;
+    static steady_clock::time_point time_origin = steady_clock::now();
+    std::array<char, 4 * 1024> formatting_buffer;
+    Entry entry;
+    entry.timestamp = duration_cast<std::chrono::microseconds>(steady_clock::now() - time_origin);
+    entry.log_class = log_class;
+    entry.log_level = log_level;
+    snprintf(formatting_buffer.data(), formatting_buffer.size(), "%s:%s:%u", filename, function, line_nr);
+    entry.location = std::string(formatting_buffer.data());
+    vsnprintf(formatting_buffer.data(), formatting_buffer.size(), format, args);
+    entry.message = std::string(formatting_buffer.data());
+    return std::move(entry);
+}
+void LogMessage(Class log_class, Level log_level,
+                const char* filename, unsigned int line_nr, const char* function,
+                const char* format, ...) {
+    va_list args;
+    va_start(args, format);
+    Entry entry = CreateEntry(log_class, log_level,
+            filename, line_nr, function, format, args);
+    va_end(args);
+    if (global_logger != nullptr && !global_logger->IsClosed()) {
+        global_logger->LogMessage(std::move(entry));
+    } else {
+        // Fall back to directly printing to stderr
+        PrintMessage(entry);
+    }
+}
+}
diff --git a/src/common/logging/backend.h b/src/common/logging/backend.h
new file mode 100644
index 000000000..ae270efe8
--- /dev/null
+++ b/src/common/logging/backend.h
@@ -0,0 +1,134 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2+
+// Refer to the license.txt file included.
+#pragma once
+#include <cstdarg>
+#include <memory>
+#include <vector>
+#include "common/concurrent_ring_buffer.h"
+#include "common/logging/log.h"
+namespace Log {
+/**
+ * A log entry. Log entries are store in a structured format to permit more varied output
+ * formatting on different frontends, as well as facilitating filtering and aggregation.
+ */
+struct Entry {
+    std::chrono::microseconds timestamp;
+    Class log_class;
+    Level log_level;
+    std::string location;
+    std::string message;
+    Entry() = default;
+    // TODO(yuriks) Use defaulted move constructors once MSVC supports them
+#define MOVE(member) member(std::move(o.member))
+    Entry(Entry&& o)
+        : MOVE(timestamp), MOVE(log_class), MOVE(log_level),
+        MOVE(location), MOVE(message)
+    {}
+#undef MOVE
+    Entry& operator=(const Entry&& o) {
+#define MOVE(member) member = std::move(o.member)
+        MOVE(timestamp);
+        MOVE(log_class);
+        MOVE(log_level);
+        MOVE(location);
+        MOVE(message);
+#undef MOVE
+        return *this;
+    }
+};
+struct ClassInfo {
+    Class log_class;
+    /**
+        * Total number of (direct or indirect) sub classes this class has. If any, they follow in
+        * sequence after this class in the class list.
+        */
+    unsigned int num_children = 0;
+    ClassInfo(Class log_class) : log_class(log_class) {}
+};
+/**
+ * Logging management class. This class has the dual purpose of acting as an exchange point between
+ * the logging clients and the log outputter, as well as containing reflection info about available
+ * log classes.
+ */
+class Logger {
+private:
+    using Buffer = Common::ConcurrentRingBuffer<Entry, 16 * 1024 / sizeof(Entry)>;
+public:
+    static const size_t QUEUE_CLOSED = Buffer::QUEUE_CLOSED;
+    Logger();
+    /**
+     * Returns a list of all vector classes and subclasses. The sequence returned is a pre-order of
+     * classes and subclasses, which together with the `num_children` field in ClassInfo, allows
+     * you to recover the hierarchy.
+     */
+    const std::vector<ClassInfo>& GetClasses() const { return all_classes; }
+    /**
+     * Returns the name of the passed log class as a C-string. Subclasses are separated by periods
+     * instead of underscores as in the enumeration.
+     */
+    static const char* GetLogClassName(Class log_class);
+    /**
+     * Returns the name of the passed log level as a C-string.
+     */
+    static const char* GetLevelName(Level log_level);
+    /**
+     * Appends a messages to the log buffer.
+     * @note This function is thread safe.
+     */
+    void LogMessage(Entry entry);
+    /**
+     * Retrieves a batch of messages from the log buffer, blocking until they are available.
+     * @note This function is thread safe.
+     *
+     * @param out_buffer Destination buffer that will receive the log entries.
+     * @param buffer_len The maximum size of `out_buffer`.
+     * @return The number of entries stored. In case the logger is shutting down, `QUEUE_CLOSED` is
+     *         returned, no entries are stored and the logger should shutdown.
+     */
+    size_t GetEntries(Entry* out_buffer, size_t buffer_len);
+    /**
+     * Initiates a shutdown of the logger. This will indicate to log output clients that they
+     * should shutdown.
+     */
+    void Close() { ring_buffer.Close(); }
+    /**
+     * Returns true if Close() has already been called on the Logger.
+     */
+    bool IsClosed() const { return ring_buffer.IsClosed(); }
+private:
+    Buffer ring_buffer;
+    std::vector<ClassInfo> all_classes;
+};
+/// Creates a log entry by formatting the given source location, and message.
+Entry CreateEntry(Class log_class, Level log_level,
+                        const char* filename, unsigned int line_nr, const char* function,
+                        const char* format, va_list args);
+/// Initializes the default Logger.
+std::shared_ptr<Logger> InitGlobalLogger();
+}
diff --git a/src/common/logging/filter.cpp b/src/common/logging/filter.cpp
new file mode 100644
index 000000000..0cf9b05e7
--- /dev/null
+++ b/src/common/logging/filter.cpp
@@ -0,0 +1,132 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2+
+// Refer to the license.txt file included.
+#include <algorithm>
+#include "common/logging/filter.h"
+#include "common/logging/backend.h"
+#include "common/string_util.h"
+namespace Log {
+Filter::Filter(Level default_level) {
+    ResetAll(default_level);
+}
+void Filter::ResetAll(Level level) {
+    class_levels.fill(level);
+}
+void Filter::SetClassLevel(Class log_class, Level level) {
+    class_levels[static_cast<size_t>(log_class)] = level;
+}
+void Filter::SetSubclassesLevel(const ClassInfo& log_class, Level level) {
+    const size_t log_class_i = static_cast<size_t>(log_class.log_class);
+    const size_t begin = log_class_i + 1;
+    const size_t end = begin + log_class.num_children;
+    for (size_t i = begin; begin < end; ++i) {
+        class_levels[i] = level;
+    }
+}
+void Filter::ParseFilterString(const std::string& filter_str) {
+    auto clause_begin = filter_str.cbegin();
+    while (clause_begin != filter_str.cend()) {
+        auto clause_end = std::find(clause_begin, filter_str.cend(), ' ');
+        // If clause isn't empty
+        if (clause_end != clause_begin) {
+            ParseFilterRule(clause_begin, clause_end);
+        }
+        if (clause_end != filter_str.cend()) {
+            // Skip over the whitespace
+            ++clause_end;
+        }
+        clause_begin = clause_end;
+    }
+}
+template <typename It>
+static Level GetLevelByName(const It begin, const It end) {
+    for (u8 i = 0; i < static_cast<u8>(Level::Count); ++i) {
+        const char* level_name = Logger::GetLevelName(static_cast<Level>(i));
+        if (Common::ComparePartialString(begin, end, level_name)) {
+            return static_cast<Level>(i);
+        }
+    }
+    return Level::Count;
+}
+template <typename It>
+static Class GetClassByName(const It begin, const It end) {
+    for (ClassType i = 0; i < static_cast<ClassType>(Class::Count); ++i) {
+        const char* level_name = Logger::GetLogClassName(static_cast<Class>(i));
+        if (Common::ComparePartialString(begin, end, level_name)) {
+            return static_cast<Class>(i);
+        }
+    }
+    return Class::Count;
+}
+template <typename InputIt, typename T>
+static InputIt find_last(InputIt begin, const InputIt end, const T& value) {
+    auto match = end;
+    while (begin != end) {
+        auto new_match = std::find(begin, end, value);
+        if (new_match != end) {
+            match = new_match;
+            ++new_match;
+        }
+        begin = new_match;
+    }
+    return match;
+}
+bool Filter::ParseFilterRule(const std::string::const_iterator begin,
+        const std::string::const_iterator end) {
+    auto level_separator = std::find(begin, end, ':');
+    if (level_separator == end) {
+        LOG_ERROR(Log, "Invalid log filter. Must specify a log level after `:`: %s",
+                std::string(begin, end).c_str());
+        return false;
+    }
+    const Level level = GetLevelByName(level_separator + 1, end);
+    if (level == Level::Count) {
+        LOG_ERROR(Log, "Unknown log level in filter: %s", std::string(begin, end).c_str());
+        return false;
+    }
+    if (Common::ComparePartialString(begin, level_separator, "*")) {
+        ResetAll(level);
+        return true;
+    }
+    auto class_name_end = find_last(begin, level_separator, '.');
+    if (class_name_end != level_separator &&
+            !Common::ComparePartialString(class_name_end + 1, level_separator, "*")) {
+        class_name_end = level_separator;
+    }
+    const Class log_class = GetClassByName(begin, class_name_end);
+    if (log_class == Class::Count) {
+        LOG_ERROR(Log, "Unknown log class in filter: %s", std::string(begin, end).c_str());
+        return false;
+    }
+    if (class_name_end == level_separator) {
+        SetClassLevel(log_class, level);
+    }
+    SetSubclassesLevel(log_class, level);
+    return true;
+}
+bool Filter::CheckMessage(Class log_class, Level level) const {
+    return static_cast<u8>(level) >= static_cast<u8>(class_levels[static_cast<size_t>(log_class)]);
+}
+}
diff --git a/src/common/logging/filter.h b/src/common/logging/filter.h
new file mode 100644
index 000000000..32b14b159
--- /dev/null
+++ b/src/common/logging/filter.h
@@ -0,0 +1,63 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2+
+// Refer to the license.txt file included.
+#include <array>
+#include <string>
+#include "common/logging/log.h"
+namespace Log {
+struct ClassInfo;
+/**
+ * Implements a log message filter which allows different log classes to have different minimum
+ * severity levels. The filter can be changed at runtime and can be parsed from a string to allow
+ * editing via the interface or loading from a configuration file.
+ */
+class Filter {
+public:
+    /// Initializes the filter with all classes having `default_level` as the minimum level.
+    Filter(Level default_level);
+    /// Resets the filter so that all classes have `level` as the minimum displayed level.
+    void ResetAll(Level level);
+    /// Sets the minimum level of `log_class` (and not of its subclasses) to `level`.
+    void SetClassLevel(Class log_class, Level level);
+    /**
+     * Sets the minimum level of all of `log_class` subclasses to `level`. The level of `log_class`
+     * itself is not changed.
+     */
+    void SetSubclassesLevel(const ClassInfo& log_class, Level level);
+    /**
+     * Parses a filter string and applies it to this filter.
+     *
+     * A filter string consists of a space-separated list of filter rules, each of the format
+     * `<class>:<level>`. `<class>` is a log class name, with subclasses separated using periods.
+     * A rule for a given class also affects all of its subclasses. `*` wildcards are allowed and
+     * can be used to apply a rule to all classes or to all subclasses of a class without affecting
+     * the parent class. `<level>` a severity level name which will be set as the minimum logging
+     * level of the matched classes. Rules are applied left to right, with each rule overriding
+     * previous ones in the sequence.
+     *
+     * A few examples of filter rules:
+     *  - `*:Info` -- Resets the level of all classes to Info.
+     *  - `Service:Info` -- Sets the level of Service and all subclasses (Service.FS, Service.APT,
+     *                       etc.) to Info.
+     *  - `Service.*:Debug` -- Sets the level of all Service subclasses to Debug, while leaving the
+     *                         level of Service unchanged.
+     *  - `Service.FS:Trace` -- Sets the level of the Service.FS class to Trace.
+     */
+    void ParseFilterString(const std::string& filter_str);
+    bool ParseFilterRule(const std::string::const_iterator start, const std::string::const_iterator end);
+    /// Matches class/level combination against the filter, returning true if it passed.
+    bool CheckMessage(Class log_class, Level level) const;
+private:
+    std::array<Level, (size_t)Class::Count> class_levels;
+};
+}
diff --git a/src/common/logging/log.h b/src/common/logging/log.h
new file mode 100644
index 000000000..1eec34fbb
--- /dev/null
+++ b/src/common/logging/log.h
@@ -0,0 +1,115 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2+
+// Refer to the license.txt file included.
+#pragma once
+#include <cassert>
+#include <chrono>
+#include <string>
+#include "common/common_types.h"
+namespace Log {
+/// Specifies the severity or level of detail of the log message.
+enum class Level : u8 {
+    Trace,    ///< Extremely detailed and repetitive debugging information that is likely to
+              ///  pollute logs.
+    Debug,    ///< Less detailed debugging information.
+    Info,     ///< Status information from important points during execution.
+    Warning,  ///< Minor or potential problems found during execution of a task.
+    Error,    ///< Major problems found during execution of a task that prevent it from being
+              ///  completed.
+    Critical, ///< Major problems during execution that threathen the stability of the entire
+              ///  application.
+    Count ///< Total number of logging levels
+};
+typedef u8 ClassType;
+/**
+ * Specifies the sub-system that generated the log message.
+ *
+ * @note If you add a new entry here, also add a corresponding one to `ALL_LOG_CLASSES` in log.cpp.
+ */
+enum class Class : ClassType {
+    Log,                        ///< Messages about the log system itself
+    Common,                     ///< Library routines
+    Common_Filesystem,          ///< Filesystem interface library
+    Common_Memory,              ///< Memory mapping and management functions
+    Core,                       ///< LLE emulation core
+    Core_ARM11,                 ///< ARM11 CPU core
+    Config,                     ///< Emulator configuration (including commandline)
+    Debug,                      ///< Debugging tools
+    Debug_Emulated,             ///< Debug messages from the emulated programs
+    Debug_GPU,                  ///< GPU debugging tools
+    Debug_Breakpoint,           ///< Logging breakpoints and watchpoints
+    Kernel,                     ///< The HLE implementation of the CTR kernel
+    Kernel_SVC,                 ///< Kernel system calls
+    Service,                    ///< HLE implementation of system services. Each major service
+                                ///  should have its own subclass.
+    Service_SRV,                ///< The SRV (Service Directory) implementation
+    Service_FS,                 ///< The FS (Filesystem) service implementation
+    Service_APT,                ///< The APT (Applets) service
+    Service_GSP,                ///< The GSP (GPU control) service
+    Service_AC,                 ///< The AC (WiFi status) service
+    Service_PTM,                ///< The PTM (Power status & misc.) service
+    Service_CFG,                ///< The CFG (Configuration) service
+    Service_DSP,                ///< The DSP (DSP control) service
+    Service_HID,                ///< The HID (User input) service
+    HW,                         ///< Low-level hardware emulation
+    HW_Memory,                  ///< Memory-map and address translation
+    HW_GPU,                     ///< GPU control emulation
+    Frontend,                   ///< Emulator UI
+    Render,                     ///< Emulator video output and hardware acceleration
+    Render_Software,            ///< Software renderer backend
+    Render_OpenGL,              ///< OpenGL backend
+    Loader,                     ///< ROM loader
+    Count ///< Total number of logging classes
+};
+/**
+ * Level below which messages are simply discarded without buffering regardless of the display
+ * settings.
+ */
+const Level MINIMUM_LEVEL =
+#ifdef _DEBUG
+    Level::Trace;
+#else
+    Level::Debug;
+#endif
+/**
+ * Logs a message to the global logger. This proxy exists to avoid exposing the details of the
+ * Logger class, including the ConcurrentRingBuffer template, to all files that desire to log
+ * messages, reducing unecessary recompilations.
+ */
+void LogMessage(Class log_class, Level log_level,
+    const char* filename, unsigned int line_nr, const char* function,
+#ifdef _MSC_VER
+    _Printf_format_string_
+#endif
+    const char* format, ...)
+#ifdef __GNUC__
+    __attribute__((format(printf, 6, 7)))
+#endif
+    ;
+} // namespace Log
+#define LOG_GENERIC(log_class, log_level, ...) \
+    do { \
+        if (::Log::Level::log_level >= ::Log::MINIMUM_LEVEL) \
+            ::Log::LogMessage(::Log::Class::log_class, ::Log::Level::log_level, \
+                       __FILE__, __LINE__, __func__, __VA_ARGS__); \
+    } while (0)
+#define LOG_TRACE(   log_class, ...) LOG_GENERIC(log_class, Trace,    __VA_ARGS__)
+#define LOG_DEBUG(   log_class, ...) LOG_GENERIC(log_class, Debug,    __VA_ARGS__)
+#define LOG_INFO(    log_class, ...) LOG_GENERIC(log_class, Info,     __VA_ARGS__)
+#define LOG_WARNING( log_class, ...) LOG_GENERIC(log_class, Warning,  __VA_ARGS__)
+#define LOG_ERROR(   log_class, ...) LOG_GENERIC(log_class, Error,    __VA_ARGS__)
+#define LOG_CRITICAL(log_class, ...) LOG_GENERIC(log_class, Critical, __VA_ARGS__)
diff --git a/src/common/logging/text_formatter.cpp b/src/common/logging/text_formatter.cpp
new file mode 100644
index 000000000..f6b02fd47
--- /dev/null
+++ b/src/common/logging/text_formatter.cpp
@@ -0,0 +1,136 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2+
+// Refer to the license.txt file included.
+#include <array>
+#include <cstdio>
+#ifdef _WIN32
+#   define WIN32_LEAN_AND_MEAN
+#   include <Windows.h>
+#endif
+#include "common/logging/backend.h"
+#include "common/logging/filter.h"
+#include "common/logging/log.h"
+#include "common/logging/text_formatter.h"
+#include "common/string_util.h"
+namespace Log {
+// TODO(bunnei): This should be moved to a generic path manipulation library
+const char* TrimSourcePath(const char* path, const char* root) {
+    const char* p = path;
+    while (*p != '\0') {
+        const char* next_slash = p;
+        while (*next_slash != '\0' && *next_slash != '/' && *next_slash != '\\') {
+            ++next_slash;
+        }
+        bool is_src = Common::ComparePartialString(p, next_slash, root);
+        p = next_slash;
+        if (*p != '\0') {
+            ++p;
+        }
+        if (is_src) {
+            path = p;
+        }
+    }
+    return path;
+}
+void FormatLogMessage(const Entry& entry, char* out_text, size_t text_len) {
+    unsigned int time_seconds    = static_cast<unsigned int>(entry.timestamp.count() / 1000000);
+    unsigned int time_fractional = static_cast<unsigned int>(entry.timestamp.count() % 1000000);
+    const char* class_name = Logger::GetLogClassName(entry.log_class);
+    const char* level_name = Logger::GetLevelName(entry.log_level);
+    snprintf(out_text, text_len, "[%4u.%06u] %s <%s> %s: %s",
+        time_seconds, time_fractional, class_name, level_name,
+        TrimSourcePath(entry.location.c_str()), entry.message.c_str());
+}
+void PrintMessage(const Entry& entry) {
+    std::array<char, 4 * 1024> format_buffer;
+    FormatLogMessage(entry, format_buffer.data(), format_buffer.size());
+    fputs(format_buffer.data(), stderr);
+    fputc('\n', stderr);
+}
+void PrintColoredMessage(const Entry& entry) {
+#ifdef _WIN32
+    static HANDLE console_handle = GetStdHandle(STD_ERROR_HANDLE);
+    CONSOLE_SCREEN_BUFFER_INFO original_info = {0};
+    GetConsoleScreenBufferInfo(console_handle, &original_info);
+    WORD color = 0;
+    switch (entry.log_level) {
+    case Level::Trace: // Grey
+        color = FOREGROUND_INTENSITY; break;
+    case Level::Debug: // Cyan
+        color = FOREGROUND_GREEN | FOREGROUND_BLUE; break;
+    case Level::Info: // Bright gray
+        color = FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_BLUE; break;
+    case Level::Warning: // Bright yellow
+        color = FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_INTENSITY; break;
+    case Level::Error: // Bright red
+        color = FOREGROUND_RED | FOREGROUND_INTENSITY; break;
+    case Level::Critical: // Bright magenta
+        color = FOREGROUND_RED | FOREGROUND_BLUE | FOREGROUND_INTENSITY; break;
+    }
+    SetConsoleTextAttribute(console_handle, color);
+#else
+#   define ESC "\x1b"
+    const char* color = "";
+    switch (entry.log_level) {
+    case Level::Trace: // Grey
+        color = ESC "[1;30m"; break;
+    case Level::Debug: // Cyan
+        color = ESC "[0;36m"; break;
+    case Level::Info: // Bright gray
+        color = ESC "[0;37m"; break;
+    case Level::Warning: // Bright yellow
+        color = ESC "[1;33m"; break;
+    case Level::Error: // Bright red
+        color = ESC "[1;31m"; break;
+    case Level::Critical: // Bright magenta
+        color = ESC "[1;35m"; break;
+    }
+    fputs(color, stderr);
+#endif
+    PrintMessage(entry);
+#ifdef _WIN32
+    SetConsoleTextAttribute(console_handle, original_info.wAttributes);
+#else
+    fputs(ESC "[0m", stderr);
+#   undef ESC
+#endif
+}
+void TextLoggingLoop(std::shared_ptr<Logger> logger, const Filter* filter) {
+    std::array<Entry, 256> entry_buffer;
+    while (true) {
+        size_t num_entries = logger->GetEntries(entry_buffer.data(), entry_buffer.size());
+        if (num_entries == Logger::QUEUE_CLOSED) {
+            break;
+        }
+        for (size_t i = 0; i < num_entries; ++i) {
+            const Entry& entry = entry_buffer[i];
+            if (filter->CheckMessage(entry.log_class, entry.log_level)) {
+                PrintColoredMessage(entry);
+            }
+        }
+    }
+}
+}
diff --git a/src/common/logging/text_formatter.h b/src/common/logging/text_formatter.h
new file mode 100644
index 000000000..1f73ca44a
--- /dev/null
+++ b/src/common/logging/text_formatter.h
@@ -0,0 +1,41 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2+
+// Refer to the license.txt file included.
+#pragma once
+#include <cstddef>
+#include <memory>
+namespace Log {
+class Logger;
+struct Entry;
+class Filter;
+/**
+ * Attempts to trim an arbitrary prefix from `path`, leaving only the part starting at `root`. It's
+ * intended to be used to strip a system-specific build directory from the `__FILE__` macro,
+ * leaving only the path relative to the sources root.
+ *
+ * @param path The input file path as a null-terminated string
+ * @param root The name of the root source directory as a null-terminated string. Path up to and
+ *             including the last occurence of this name will be stripped
+ * @return A pointer to the same string passed as `path`, but starting at the trimmed portion
+ */
+const char* TrimSourcePath(const char* path, const char* root = "src");
+/// Formats a log entry into the provided text buffer.
+void FormatLogMessage(const Entry& entry, char* out_text, size_t text_len);
+/// Formats and prints a log entry to stderr.
+void PrintMessage(const Entry& entry);
+/// Prints the same message as `PrintMessage`, but colored acoording to the severity level.
+void PrintColoredMessage(const Entry& entry);
+/**
+ * Logging loop that repeatedly reads messages from the provided logger and prints them to the
+ * console. It is the baseline barebones log outputter.
+ */
+void TextLoggingLoop(std::shared_ptr<Logger> logger, const Filter* filter);
+}
diff --git a/src/common/math_util.cpp b/src/common/math_util.cpp
index ab0e6b75c..3613e82a6 100644
--- a/src/common/math_util.cpp
+++ b/src/common/math_util.cpp
@@ -18,7 +18,7 @@ u32 ClassifyDouble(double dvalue)
    value.d = dvalue;
    u64 sign = value.i & DOUBLE_SIGN;
    u64 exp  = value.i & DOUBLE_EXP;
-    if (exp > DOUBLE_ZERO && exp < DOUBLE_EXP) 
+    if (exp > DOUBLE_ZERO && exp < DOUBLE_EXP)
    {
        // Nice normalized number.
        return sign ? PPC_FPCLASS_NN : PPC_FPCLASS_PN;
@@ -58,7 +58,7 @@ u32 ClassifyFloat(float fvalue)
    value.f = fvalue;
    u32 sign = value.i & FLOAT_SIGN;
    u32 exp  = value.i & FLOAT_EXP;
-    if (exp > FLOAT_ZERO && exp < FLOAT_EXP) 
+    if (exp > FLOAT_ZERO && exp < FLOAT_EXP)
    {
        // Nice normalized number.
        return sign ? PPC_FPCLASS_NN : PPC_FPCLASS_PN;
@@ -77,13 +77,13 @@ u32 ClassifyFloat(float fvalue)
                // Denormalized number.
                return sign ? PPC_FPCLASS_ND : PPC_FPCLASS_PD;
            }
-        } 
+        }
-        else if (exp) 
+        else if (exp)
        {
            // Infinite
            return sign ? PPC_FPCLASS_NINF : PPC_FPCLASS_PINF;
-        } 
+        }
-        else 
+        else
        {
            //Zero
            return sign ? PPC_FPCLASS_NZ : PPC_FPCLASS_PZ;
@@ -143,7 +143,7 @@ void Matrix33::RotateY(Matrix33 &mtx, float rad)
    mtx.data[0] = c;
    mtx.data[2] = s;
    mtx.data[4] = 1;
-    mtx.data[6] = -s;    
+    mtx.data[6] = -s;
    mtx.data[8] = c;
 }
diff --git a/src/common/math_util.h b/src/common/math_util.h
index b32e7bb14..b10a25c13 100644
--- a/src/common/math_util.h
+++ b/src/common/math_util.h
@@ -7,6 +7,7 @@
 #include "common/common.h"
 #include <algorithm>
+#include <type_traits>
 #include <vector>
 namespace MathUtil
@@ -109,11 +110,11 @@ struct Rectangle
    Rectangle(T theLeft, T theTop, T theRight, T theBottom)
        : left(theLeft), top(theTop), right(theRight), bottom(theBottom)
    { }
-    
    bool operator==(const Rectangle& r) { return left==r.left && top==r.top && right==r.right && bottom==r.bottom; }
-    T GetWidth() const { return abs(right - left); }
+    T GetWidth() const { return std::abs(static_cast<typename std::make_signed<T>::type>(right - left)); }
-    T GetHeight() const { return abs(bottom - top); }
+    T GetHeight() const { return std::abs(static_cast<typename std::make_signed<T>::type>(bottom - top)); }
    // If the rectangle is in a coordinate system with a lower-left origin, use
    // this Clamp.
@@ -127,7 +128,7 @@ struct Rectangle
    // If the rectangle is in a coordinate system with an upper-left origin,
    // use this Clamp.
-    void ClampUL(T x1, T y1, T x2, T y2) 
+    void ClampUL(T x1, T y1, T x2, T y2)
    {
        if (left < x1) left = x1;
        if (right > x2) right = x2;
diff --git a/src/common/mem_arena.cpp b/src/common/mem_arena.cpp
index 40d9c03a2..9904d2472 100644
--- a/src/common/mem_arena.cpp
+++ b/src/common/mem_arena.cpp
@@ -30,7 +30,7 @@
 #endif
 #ifdef IOS
-void* globalbase = NULL;
+void* globalbase = nullptr;
 #endif
 #ifdef ANDROID
@@ -38,7 +38,7 @@ void* globalbase = NULL;
 // Hopefully this ABI will never change...
-#define ASHMEM_DEVICE   "/dev/ashmem"
+#define ASHMEM_DEVICE "/dev/ashmem"
 /*
 * ashmem_create_region - creates a new ashmem region and returns the file
@@ -71,7 +71,7 @@ int ashmem_create_region(const char *name, size_t size)
    return fd;
 error:
-    ERROR_LOG(MEMMAP, "NASTY ASHMEM ERROR: ret = %08x", ret);
+    LOG_ERROR(Common_Memory, "NASTY ASHMEM ERROR: ret = %08x", ret);
    close(fd);
    return ret;
 }
@@ -121,7 +121,7 @@ void MemArena::GrabLowMemSpace(size_t size)
 {
 #ifdef _WIN32
 #ifndef _XBOX
-    hMemoryMapping = CreateFileMapping(INVALID_HANDLE_VALUE, NULL, PAGE_READWRITE, 0, (DWORD)(size), NULL);
+    hMemoryMapping = CreateFileMapping(INVALID_HANDLE_VALUE, nullptr, PAGE_READWRITE, 0, (DWORD)(size), nullptr);
    GetSystemInfo(&sysInfo);
 #endif
 #elif defined(ANDROID)
@@ -130,7 +130,7 @@ void MemArena::GrabLowMemSpace(size_t size)
    // Note that it appears that ashmem is pinned by default, so no need to pin.
    if (fd < 0)
    {
-        ERROR_LOG(MEMMAP, "Failed to grab ashmem space of size: %08x  errno: %d", (int)size, (int)(errno));
+        LOG_ERROR(Common_Memory, "Failed to grab ashmem space of size: %08x  errno: %d", (int)size, (int)(errno));
        return;
    }
 #else
@@ -148,12 +148,12 @@ void MemArena::GrabLowMemSpace(size_t size)
        }
        else if (errno != EEXIST)
        {
-            ERROR_LOG(MEMMAP, "shm_open failed: %s", strerror(errno));
+            LOG_ERROR(Common_Memory, "shm_open failed: %s", strerror(errno));
            return;
        }
    }
    if (ftruncate(fd, size) < 0)
-        ERROR_LOG(MEMMAP, "Failed to allocate low memory space");
+        LOG_ERROR(Common_Memory, "Failed to allocate low memory space");
 #endif
 }
@@ -178,7 +178,7 @@ void *MemArena::CreateView(s64 offset, size_t size, void *base)
 #ifdef _XBOX
    size = roundup(size);
    // use 64kb pages
-    void * ptr = VirtualAlloc(NULL, size, MEM_COMMIT | MEM_LARGE_PAGES, PAGE_READWRITE);
+    void * ptr = VirtualAlloc(nullptr, size, MEM_COMMIT | MEM_LARGE_PAGES, PAGE_READWRITE);
    return ptr;
 #else
    size = roundup(size);
@@ -197,7 +197,7 @@ void *MemArena::CreateView(s64 offset, size_t size, void *base)
    if (retval == MAP_FAILED)
    {
-        NOTICE_LOG(MEMMAP, "mmap failed");
+        LOG_ERROR(Common_Memory, "mmap failed");
        return nullptr;
    }
    return retval;
@@ -243,8 +243,8 @@ u8* MemArena::Find4GBBase()
    return base;
 #else
 #ifdef IOS
-    void* base = NULL;
+    void* base = nullptr;
-    if (globalbase == NULL){
+    if (globalbase == nullptr){
        base = mmap(0, 0x08000000, PROT_READ | PROT_WRITE,
            MAP_ANON | MAP_SHARED, -1, 0);
        if (base == MAP_FAILED) {
@@ -272,11 +272,11 @@ u8* MemArena::Find4GBBase()
 // yeah, this could also be done in like two bitwise ops...
-#define SKIP(a_flags, b_flags) 
+#define SKIP(a_flags, b_flags)
-//      if (!(a_flags & MV_WII_ONLY) && (b_flags & MV_WII_ONLY)) 
+//if (!(a_flags & MV_WII_ONLY) && (b_flags & MV_WII_ONLY))
-//              continue; 
+//    continue;
-//      if (!(a_flags & MV_FAKE_VMEM) && (b_flags & MV_FAKE_VMEM)) 
+//if (!(a_flags & MV_FAKE_VMEM) && (b_flags & MV_FAKE_VMEM))
-//              continue; 
+//    continue;
 static bool Memory_TryBase(u8 *base, const MemoryView *views, int num_views, u32 flags, MemArena *arena) {
    // OK, we know where to find free space. Now grab it!
@@ -357,7 +357,7 @@ bail:
        if (views[j].out_ptr_low && *views[j].out_ptr_low)
        {
            arena->ReleaseView(*views[j].out_ptr_low, views[j].size);
-            *views[j].out_ptr_low = NULL;
+            *views[j].out_ptr_low = nullptr;
        }
        if (*views[j].out_ptr)
        {
@@ -369,7 +369,7 @@ bail:
                arena->ReleaseView(*views[j].out_ptr, views[j].size);
            }
 #endif
-            *views[j].out_ptr = NULL;
+            *views[j].out_ptr = nullptr;
        }
    }
    return false;
@@ -415,7 +415,7 @@ u8 *MemoryMap_Setup(const MemoryView *views, int num_views, u32 flags, MemArena
 #elif defined(_WIN32)
    // Try a whole range of possible bases. Return once we got a valid one.
    u32 max_base_addr = 0x7FFF0000 - 0x10000000;
-    u8 *base = NULL;
+    u8 *base = nullptr;
    for (u32 base_addr = 0x01000000; base_addr < max_base_addr; base_addr += 0x400000)
    {
@@ -423,7 +423,7 @@ u8 *MemoryMap_Setup(const MemoryView *views, int num_views, u32 flags, MemArena
        base = (u8 *)base_addr;
        if (Memory_TryBase(base, views, num_views, flags, arena))
        {
-            INFO_LOG(MEMMAP, "Found valid memory base at %p after %i tries.", base, base_attempts);
+            LOG_DEBUG(Common_Memory, "Found valid memory base at %p after %i tries.", base, base_attempts);
            base_attempts = 0;
            break;
        }
@@ -442,7 +442,7 @@ u8 *MemoryMap_Setup(const MemoryView *views, int num_views, u32 flags, MemArena
    u8 *base = MemArena::Find4GBBase();
    if (!Memory_TryBase(base, views, num_views, flags, arena))
    {
-        ERROR_LOG(MEMMAP, "MemoryMap_Setup: Failed finding a memory base.");
+        LOG_ERROR(Common_Memory, "MemoryMap_Setup: Failed finding a memory base.");
        PanicAlert("MemoryMap_Setup: Failed finding a memory base.");
        return 0;
    }
@@ -463,8 +463,8 @@ void MemoryMap_Shutdown(const MemoryView *views, int num_views, u32 flags, MemAr
            arena->ReleaseView(*views[i].out_ptr_low, views[i].size);
        if (*views[i].out_ptr && (views[i].out_ptr_low && *views[i].out_ptr != *views[i].out_ptr_low))
            arena->ReleaseView(*views[i].out_ptr, views[i].size);
-        *views[i].out_ptr = NULL;
+        *views[i].out_ptr = nullptr;
        if (views[i].out_ptr_low)
-            *views[i].out_ptr_low = NULL;
+            *views[i].out_ptr_low = nullptr;
    }
 }
diff --git a/src/common/memory_util.cpp b/src/common/memory_util.cpp
index bab7d9f7a..ca8a2a9e4 100644
--- a/src/common/memory_util.cpp
+++ b/src/common/memory_util.cpp
@@ -47,7 +47,7 @@ void* AllocateExecutableMemory(size_t size, bool low)
    // printf("Mapped executable memory at %p (size %ld)\n", ptr,
    //    (unsigned long)size);
-    
 #ifdef _WIN32
    if (ptr == nullptr)
    {
@@ -55,7 +55,7 @@ void* AllocateExecutableMemory(size_t size, bool low)
    if (ptr == MAP_FAILED)
    {
        ptr = nullptr;
-#endif 
+#endif
        PanicAlert("Failed to allocate executable memory");
    }
 #if !defined(_WIN32) && defined(__x86_64__) && !defined(MAP_32BIT)
@@ -93,7 +93,7 @@ void* AllocateMemoryPages(size_t size)
    // printf("Mapped memory at %p (size %ld)\n", ptr,
    //    (unsigned long)size);
-    if (ptr == NULL)
+    if (ptr == nullptr)
        PanicAlert("Failed to allocate raw memory");
    return ptr;
@@ -104,19 +104,19 @@ void* AllocateAlignedMemory(size_t size,size_t alignment)
 #ifdef _WIN32
    void* ptr =  _aligned_malloc(size,alignment);
 #else
-    void* ptr = NULL;
+    void* ptr = nullptr;
 #ifdef ANDROID
    ptr = memalign(alignment, size);
 #else
    if (posix_memalign(&ptr, alignment, size) != 0)
-        ERROR_LOG(MEMMAP, "Failed to allocate aligned memory");
+        LOG_ERROR(Common_Memory, "Failed to allocate aligned memory");
 #endif
 #endif
    // printf("Mapped memory at %p (size %ld)\n", ptr,
    //    (unsigned long)size);
-    if (ptr == NULL)
+    if (ptr == nullptr)
        PanicAlert("Failed to allocate aligned memory");
    return ptr;
@@ -127,11 +127,11 @@ void FreeMemoryPages(void* ptr, size_t size)
    if (ptr)
    {
 #ifdef _WIN32
-    
        if (!VirtualFree(ptr, 0, MEM_RELEASE))
            PanicAlert("FreeMemoryPages failed!\n%s", GetLastErrorMsg());
-        ptr = NULL; // Is this our responsibility?
+        ptr = nullptr; // Is this our responsibility?
-    
 #else
        munmap(ptr, size);
 #endif
@@ -184,7 +184,7 @@ std::string MemUsage()
    // Print information about the memory usage of the process.
    hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, processID);
-    if (NULL == hProcess) return "MemUsage Error";
+    if (nullptr == hProcess) return "MemUsage Error";
    if (GetProcessMemoryInfo(hProcess, &pmc, sizeof(pmc)))
        Ret = Common::StringFromFormat("%s K", Common::ThousandSeparate(pmc.WorkingSetSize / 1024, 7).c_str());
diff --git a/src/common/misc.cpp b/src/common/misc.cpp
index cf6df44e8..bc9d26188 100644
--- a/src/common/misc.cpp
+++ b/src/common/misc.cpp
@@ -23,9 +23,9 @@ const char* GetLastErrorMsg()
 #ifdef _WIN32
    static __declspec(thread) char err_str[buff_size] = {};
-    FormatMessageA(FORMAT_MESSAGE_FROM_SYSTEM, NULL, GetLastError(),
+    FormatMessageA(FORMAT_MESSAGE_FROM_SYSTEM, nullptr, GetLastError(),
        MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
-        err_str, buff_size, NULL);
+        err_str, buff_size, nullptr);
 #else
    static __thread char err_str[buff_size] = {};
diff --git a/src/common/msg_handler.cpp b/src/common/msg_handler.cpp
index b3556aaa8..7ffedc45a 100644
--- a/src/common/msg_handler.cpp
+++ b/src/common/msg_handler.cpp
@@ -75,7 +75,7 @@ bool MsgAlert(bool yes_no, int Style, const char* format, ...)
    Common::CharArrayFromFormatV(buffer, sizeof(buffer)-1, str_translator(format).c_str(), args);
    va_end(args);
-    ERROR_LOG(MASTER_LOG, "%s: %s", caption.c_str(), buffer);
+    LOG_INFO(Common, "%s: %s", caption.c_str(), buffer);
    // Don't ignore questions, especially AskYesNo, PanicYesNo could be ignored
    if (msg_handler && (AlertEnabled || Style == QUESTION || Style == CRITICAL))
diff --git a/src/common/msg_handler.h b/src/common/msg_handler.h
index 7c5319ec3..9bfdf950e 100644
--- a/src/common/msg_handler.h
+++ b/src/common/msg_handler.h
@@ -15,7 +15,7 @@ enum MSG_TYPE
    CRITICAL
 };
-typedef bool (*MsgAlertHandler)(const char* caption, const char* text, 
+typedef bool (*MsgAlertHandler)(const char* caption, const char* text,
                                bool yes_no, int Style);
 typedef std::string (*StringTranslator)(const char* text);
@@ -31,29 +31,29 @@ void SetEnableAlert(bool enable);
 #ifndef GEKKO
 #ifdef _WIN32
-    #define SuccessAlert(format, ...) MsgAlert(false, INFORMATION, format, __VA_ARGS__) 
+    #define SuccessAlert(format, ...) MsgAlert(false, INFORMATION, format, __VA_ARGS__)
-    #define PanicAlert(format, ...) MsgAlert(false, WARNING, format, __VA_ARGS__) 
+    #define PanicAlert(format, ...) MsgAlert(false, WARNING, format, __VA_ARGS__)
-    #define PanicYesNo(format, ...) MsgAlert(true, WARNING, format, __VA_ARGS__) 
+    #define PanicYesNo(format, ...) MsgAlert(true, WARNING, format, __VA_ARGS__)
-    #define AskYesNo(format, ...) MsgAlert(true, QUESTION, format, __VA_ARGS__) 
+    #define AskYesNo(format, ...) MsgAlert(true, QUESTION, format, __VA_ARGS__)
-    #define CriticalAlert(format, ...) MsgAlert(false, CRITICAL, format, __VA_ARGS__) 
+    #define CriticalAlert(format, ...) MsgAlert(false, CRITICAL, format, __VA_ARGS__)
    // Use these macros (that do the same thing) if the message should be translated.
-    #define SuccessAlertT(format, ...) MsgAlert(false, INFORMATION, format, __VA_ARGS__) 
+    #define SuccessAlertT(format, ...) MsgAlert(false, INFORMATION, format, __VA_ARGS__)
-    #define PanicAlertT(format, ...) MsgAlert(false, WARNING, format, __VA_ARGS__) 
+    #define PanicAlertT(format, ...) MsgAlert(false, WARNING, format, __VA_ARGS__)
-    #define PanicYesNoT(format, ...) MsgAlert(true, WARNING, format, __VA_ARGS__) 
+    #define PanicYesNoT(format, ...) MsgAlert(true, WARNING, format, __VA_ARGS__)
-    #define AskYesNoT(format, ...) MsgAlert(true, QUESTION, format, __VA_ARGS__) 
+    #define AskYesNoT(format, ...) MsgAlert(true, QUESTION, format, __VA_ARGS__)
-    #define CriticalAlertT(format, ...) MsgAlert(false, CRITICAL, format, __VA_ARGS__) 
+    #define CriticalAlertT(format, ...) MsgAlert(false, CRITICAL, format, __VA_ARGS__)
 #else
-    #define SuccessAlert(format, ...) MsgAlert(false, INFORMATION, format, ##__VA_ARGS__) 
+    #define SuccessAlert(format, ...) MsgAlert(false, INFORMATION, format, ##__VA_ARGS__)
-    #define PanicAlert(format, ...) MsgAlert(false, WARNING, format, ##__VA_ARGS__) 
+    #define PanicAlert(format, ...) MsgAlert(false, WARNING, format, ##__VA_ARGS__)
-    #define PanicYesNo(format, ...) MsgAlert(true, WARNING, format, ##__VA_ARGS__) 
+    #define PanicYesNo(format, ...) MsgAlert(true, WARNING, format, ##__VA_ARGS__)
-    #define AskYesNo(format, ...) MsgAlert(true, QUESTION, format, ##__VA_ARGS__) 
+    #define AskYesNo(format, ...) MsgAlert(true, QUESTION, format, ##__VA_ARGS__)
-    #define CriticalAlert(format, ...) MsgAlert(false, CRITICAL, format, ##__VA_ARGS__) 
+    #define CriticalAlert(format, ...) MsgAlert(false, CRITICAL, format, ##__VA_ARGS__)
    // Use these macros (that do the same thing) if the message should be translated.
-    #define SuccessAlertT(format, ...) MsgAlert(false, INFORMATION, format, ##__VA_ARGS__) 
+    #define SuccessAlertT(format, ...) MsgAlert(false, INFORMATION, format, ##__VA_ARGS__)
-    #define PanicAlertT(format, ...) MsgAlert(false, WARNING, format, ##__VA_ARGS__) 
+    #define PanicAlertT(format, ...) MsgAlert(false, WARNING, format, ##__VA_ARGS__)
-    #define PanicYesNoT(format, ...) MsgAlert(true, WARNING, format, ##__VA_ARGS__) 
+    #define PanicYesNoT(format, ...) MsgAlert(true, WARNING, format, ##__VA_ARGS__)
-    #define AskYesNoT(format, ...) MsgAlert(true, QUESTION, format, ##__VA_ARGS__) 
+    #define AskYesNoT(format, ...) MsgAlert(true, QUESTION, format, ##__VA_ARGS__)
-    #define CriticalAlertT(format, ...) MsgAlert(false, CRITICAL, format, ##__VA_ARGS__) 
+    #define CriticalAlertT(format, ...) MsgAlert(false, CRITICAL, format, ##__VA_ARGS__)
 #endif
 #else
 // GEKKO
diff --git a/src/common/platform.h b/src/common/platform.h
index d9f095433..53d98fe74 100644
--- a/src/common/platform.h
+++ b/src/common/platform.h
@@ -77,7 +77,7 @@
 inline struct tm* localtime_r(const time_t *clock, struct tm *result) {
    if (localtime_s(result, clock) == 0)
        return result;
-    return NULL;
+    return nullptr;
 }
 #else
diff --git a/src/common/scope_exit.h b/src/common/scope_exit.h
new file mode 100644
index 000000000..1d3e59319
--- /dev/null
+++ b/src/common/scope_exit.h
@@ -0,0 +1,37 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2+
+// Refer to the license.txt file included.
+#pragma once
+namespace detail {
+    template <typename Func>
+    struct ScopeExitHelper {
+        explicit ScopeExitHelper(Func&& func) : func(std::move(func)) {}
+        ~ScopeExitHelper() { func(); }
+        Func func;
+    };
+    template <typename Func>
+    ScopeExitHelper<Func> ScopeExit(Func&& func) { return ScopeExitHelper<Func>(std::move(func)); }
+}
+/**
+ * This macro allows you to conveniently specify a block of code that will run on scope exit. Handy
+ * for doing ad-hoc clean-up tasks in a function with multiple returns.
+ *
+ * Example usage:
+ * \code
+ * const int saved_val = g_foo;
+ * g_foo = 55;
+ * SCOPE_EXIT({ g_foo = saved_val; });
+ *
+ * if (Bar()) {
+ *     return 0;
+ * } else {
+ *     return 20;
+ * }
+ * \endcode
+ */
+#define SCOPE_EXIT(body) auto scope_exit_helper_##__LINE__ = detail::ScopeExit([&]() body)
diff --git a/src/common/string_util.cpp b/src/common/string_util.cpp
index 61f0939c4..6d9612fb5 100644
--- a/src/common/string_util.cpp
+++ b/src/common/string_util.cpp
@@ -2,13 +2,14 @@
 // Licensed under GPLv2
 // Refer to the license.txt file included.
-#include <algorithm>
+#include <boost/range/algorithm.hpp>
 #include "common/common.h"
 #include "common/string_util.h"
 #ifdef _WIN32
    #include <Windows.h>
+    #include <codecvt>
 #else
    #include <iconv.h>
 #endif
@@ -17,20 +18,20 @@ namespace Common {
 /// Make a string lowercase
 std::string ToLower(std::string str) {
-    std::transform(str.begin(), str.end(), str.begin(), ::tolower);
+    boost::transform(str, str.begin(), ::tolower);
    return str;
 }
 /// Make a string uppercase
 std::string ToUpper(std::string str) {
-    std::transform(str.begin(), str.end(), str.begin(), ::toupper);
+    boost::transform(str, str.begin(), ::toupper);
    return str;
 }
 // faster than sscanf
 bool AsciiToHex(const char* _szValue, u32& result)
 {
-    char *endptr = NULL;
+    char *endptr = nullptr;
    const u32 value = strtoul(_szValue, &endptr, 16);
    if (!endptr || *endptr)
@@ -68,7 +69,7 @@ bool CharArrayFromFormatV(char* out, int outsize, const char* format, va_list ar
    // will be present in the middle of a multibyte sequence.
    //
    // This is why we lookup an ANSI (cp1252) locale here and use _vsnprintf_l.
-    static locale_t c_locale = NULL;
+    static locale_t c_locale = nullptr;
    if (!c_locale)
        c_locale = _create_locale(LC_ALL, ".1252");
    writtenCount = _vsnprintf_l(out, outsize, format, c_locale, args);
@@ -91,7 +92,7 @@ bool CharArrayFromFormatV(char* out, int outsize, const char* format, va_list ar
 std::string StringFromFormat(const char* format, ...)
 {
    va_list args;
-    char *buf = NULL;
+    char *buf = nullptr;
 #ifdef _WIN32
    int required = 0;
@@ -106,7 +107,7 @@ std::string StringFromFormat(const char* format, ...)
 #else
    va_start(args, format);
    if (vasprintf(&buf, format, args) < 0)
-        ERROR_LOG(COMMON, "Unable to allocate memory for string");
+        LOG_ERROR(Common, "Unable to allocate memory for string");
    va_end(args);
    std::string temp = buf;
@@ -120,11 +121,11 @@ std::string ArrayToString(const u8 *data, u32 size, int line_len, bool spaces)
 {
    std::ostringstream oss;
    oss << std::setfill('0') << std::hex;
-    
    for (int line = 0; size; ++data, --size)
    {
        oss << std::setw(2) << (int)*data;
-        
        if (line_len == ++line)
        {
            oss << '\n';
@@ -161,13 +162,13 @@ std::string StripQuotes(const std::string& s)
 bool TryParse(const std::string &str, u32 *const output)
 {
-    char *endptr = NULL;
+    char *endptr = nullptr;
    // Reset errno to a value other than ERANGE
    errno = 0;
    unsigned long value = strtoul(str.c_str(), &endptr, 0);
-    
    if (!endptr || *endptr)
        return false;
@@ -293,7 +294,7 @@ std::string ReplaceAll(std::string result, const std::string& src, const std::st
 //#include <string>
 //#include <assert.h>
-const char HEX2DEC[256] = 
+const char HEX2DEC[256] =
 {
    /*       0  1  2  3   4  5  6  7   8  9  A  B   C  D  E  F */
    /* 0 */ 16,16,16,16, 16,16,16,16, 16,16,16,16, 16,16,16,16,
@@ -326,7 +327,7 @@ std::string UriDecode(const std::string & sSrc)
    const unsigned char * pSrc = (const unsigned char *)sSrc.c_str();
    const size_t SRC_LEN = sSrc.length();
    const unsigned char * const SRC_END = pSrc + SRC_LEN;
-    const unsigned char * const SRC_LAST_DEC = SRC_END - 2;   // last decodable '%' 
+    const unsigned char * const SRC_LAST_DEC = SRC_END - 2;   // last decodable '%'
    char * const pStart = new char[SRC_LEN];
    char * pEnd = pStart;
@@ -393,7 +394,7 @@ std::string UriEncode(const std::string & sSrc)
    for (; pSrc < SRC_END; ++pSrc)
    {
-        if (SAFE[*pSrc]) 
+        if (SAFE[*pSrc])
            *pEnd++ = *pSrc;
        else
        {
@@ -411,7 +412,19 @@ std::string UriEncode(const std::string & sSrc)
 #ifdef _WIN32
-std::string UTF16ToUTF8(const std::wstring& input)
+std::string UTF16ToUTF8(const std::u16string& input)
+{
+    std::wstring_convert<std::codecvt_utf8_utf16<char16_t>, char16_t> convert;
+    return convert.to_bytes(input);
+}
+std::u16string UTF8ToUTF16(const std::string& input)
+{
+    std::wstring_convert<std::codecvt_utf8_utf16<char16_t>, char16_t> convert;
+    return convert.from_bytes(input);
+}
+static std::string UTF16ToUTF8(const std::wstring& input)
 {
    auto const size = WideCharToMultiByte(CP_UTF8, 0, input.data(), input.size(), nullptr, 0, nullptr, nullptr);
@@ -424,7 +437,7 @@ std::string UTF16ToUTF8(const std::wstring& input)
    return output;
 }
-std::wstring CPToUTF16(u32 code_page, const std::string& input)
+static std::wstring CPToUTF16(u32 code_page, const std::string& input)
 {
    auto const size = MultiByteToWideChar(code_page, 0, input.data(), input.size(), nullptr, 0);
@@ -437,7 +450,7 @@ std::wstring CPToUTF16(u32 code_page, const std::string& input)
    return output;
 }
-std::wstring UTF8ToUTF16(const std::string& input)
+std::wstring UTF8ToUTF16W(const std::string &input)
 {
    return CPToUTF16(CP_UTF8, input);
 }
@@ -455,61 +468,123 @@ std::string CP1252ToUTF8(const std::string& input)
 #else
 template <typename T>
-std::string CodeToUTF8(const char* fromcode, const std::basic_string<T>& input)
+static std::string CodeToUTF8(const char* fromcode, const std::basic_string<T>& input)
 {
    std::string result;
    iconv_t const conv_desc = iconv_open("UTF-8", fromcode);
-    if ((iconv_t)-1 == conv_desc)
+    if ((iconv_t)(-1) == conv_desc)
    {
-        ERROR_LOG(COMMON, "Iconv initialization failure [%s]: %s", fromcode, strerror(errno));
+        LOG_ERROR(Common, "Iconv initialization failure [%s]: %s", fromcode, strerror(errno));
+        iconv_close(conv_desc);
+        return {};
    }
-    else
-    {
-        size_t const in_bytes = sizeof(T) * input.size();
-        size_t const out_buffer_size = 4 * in_bytes;
-        std::string out_buffer;
+    const size_t in_bytes = sizeof(T) * input.size();
-        out_buffer.resize(out_buffer_size);
+    // Multiply by 4, which is the max number of bytes to encode a codepoint
+    const size_t out_buffer_size = 4 * in_bytes;
-        auto src_buffer = &input[0];
+    std::string out_buffer;
-        size_t src_bytes = in_bytes;
+    out_buffer.resize(out_buffer_size);
-        auto dst_buffer = &out_buffer[0];
-        size_t dst_bytes = out_buffer.size();
-        while (src_bytes != 0)
+    auto src_buffer = &input[0];
-        {
+    size_t src_bytes = in_bytes;
-            size_t const iconv_result = iconv(conv_desc, (char**)(&src_buffer), &src_bytes,
+    auto dst_buffer = &out_buffer[0];
-                &dst_buffer, &dst_bytes);
+    size_t dst_bytes = out_buffer.size();
-            if ((size_t)-1 == iconv_result)
+    while (0 != src_bytes)
+    {
+        size_t const iconv_result = iconv(conv_desc, (char**)(&src_buffer), &src_bytes,
+            &dst_buffer, &dst_bytes);
+        if (static_cast<size_t>(-1) == iconv_result)
+        {
+            if (EILSEQ == errno || EINVAL == errno)
            {
-                if (EILSEQ == errno || EINVAL == errno)
+                // Try to skip the bad character
-                {
+                if (0 != src_bytes)
-                    // Try to skip the bad character
-                    if (src_bytes != 0)
-                    {
-                        --src_bytes;
-                        ++src_buffer;
-                    }
-                }
-                else
                {
-                    ERROR_LOG(COMMON, "iconv failure [%s]: %s", fromcode, strerror(errno));
+                    --src_bytes;
-                    break;
+                    ++src_buffer;
                }
            }
+            else
+            {
+                LOG_ERROR(Common, "iconv failure [%s]: %s", fromcode, strerror(errno));
+                break;
+            }
        }
+    }
+    out_buffer.resize(out_buffer_size - dst_bytes);
+    out_buffer.swap(result);
+    iconv_close(conv_desc);
+    return result;
+}
+std::u16string UTF8ToUTF16(const std::string& input)
+{
+    std::u16string result;
-        out_buffer.resize(out_buffer_size - dst_bytes);
+    iconv_t const conv_desc = iconv_open("UTF-16LE", "UTF-8");
-        out_buffer.swap(result);
+    if ((iconv_t)(-1) == conv_desc)
-        
+    {
+        LOG_ERROR(Common, "Iconv initialization failure [UTF-8]: %s", strerror(errno));
        iconv_close(conv_desc);
+        return {};
    }
-    
+    const size_t in_bytes = sizeof(char) * input.size();
+    // Multiply by 4, which is the max number of bytes to encode a codepoint
+    const size_t out_buffer_size = 4 * sizeof(char16_t) * in_bytes;
+    std::u16string out_buffer;
+    out_buffer.resize(out_buffer_size);
+    char* src_buffer = const_cast<char*>(&input[0]);
+    size_t src_bytes = in_bytes;
+    char* dst_buffer = (char*)(&out_buffer[0]);
+    size_t dst_bytes = out_buffer.size();
+    while (0 != src_bytes)
+    {
+        size_t const iconv_result = iconv(conv_desc, &src_buffer, &src_bytes,
+                                          &dst_buffer, &dst_bytes);
+        if (static_cast<size_t>(-1) == iconv_result)
+        {
+            if (EILSEQ == errno || EINVAL == errno)
+            {
+                // Try to skip the bad character
+                if (0 != src_bytes)
+                {
+                    --src_bytes;
+                    ++src_buffer;
+                }
+            }
+            else
+            {
+                LOG_ERROR(Common, "iconv failure [UTF-8]: %s", strerror(errno));
+                break;
+            }
+        }
+    }
+    out_buffer.resize(out_buffer_size - dst_bytes);
+    out_buffer.swap(result);
+    iconv_close(conv_desc);
    return result;
 }
+std::string UTF16ToUTF8(const std::u16string& input)
+{
+    return CodeToUTF8("UTF-16LE", input);
+}
 std::string CP1252ToUTF8(const std::string& input)
 {
    //return CodeToUTF8("CP1252//TRANSLIT", input);
@@ -523,19 +598,6 @@ std::string SHIFTJISToUTF8(const std::string& input)
    return CodeToUTF8("SJIS", input);
 }
-std::string UTF16ToUTF8(const std::wstring& input)
-{
-    std::string result =
-    //    CodeToUTF8("UCS-2", input);
-    //    CodeToUTF8("UCS-2LE", input);
-    //    CodeToUTF8("UTF-16", input);
-        CodeToUTF8("UTF-16LE", input);
-    // TODO: why is this needed?
-    result.erase(std::remove(result.begin(), result.end(), 0x00), result.end());
-    return result;
-}
 #endif
 }
diff --git a/src/common/string_util.h b/src/common/string_util.h
index a41ccc691..7d75691b1 100644
--- a/src/common/string_util.h
+++ b/src/common/string_util.h
@@ -63,7 +63,7 @@ template <typename N>
 static bool TryParse(const std::string &str, N *const output)
 {
    std::istringstream iss(str);
-    
    N tmp = 0;
    if (iss >> tmp)
    {
@@ -89,20 +89,22 @@ std::string ReplaceAll(std::string result, const std::string& src, const std::st
 std::string UriDecode(const std::string & sSrc);
 std::string UriEncode(const std::string & sSrc);
+std::string UTF16ToUTF8(const std::u16string& input);
+std::u16string UTF8ToUTF16(const std::string& input);
 std::string CP1252ToUTF8(const std::string& str);
 std::string SHIFTJISToUTF8(const std::string& str);
-std::string UTF16ToUTF8(const std::wstring& str);
 #ifdef _WIN32
-std::wstring UTF8ToUTF16(const std::string& str);
+std::wstring UTF8ToUTF16W(const std::string& str);
 #ifdef _UNICODE
 inline std::string TStrToUTF8(const std::wstring& str)
 { return UTF16ToUTF8(str); }
 inline std::wstring UTF8ToTStr(const std::string& str)
-{ return UTF8ToUTF16(str); }
+{ return UTF8ToUTF16W(str); }
 #else
 inline std::string TStrToUTF8(const std::string& str)
 { return str; }
@@ -113,4 +115,19 @@ inline std::string UTF8ToTStr(const std::string& str)
 #endif
+/**
+ * Compares the string defined by the range [`begin`, `end`) to the null-terminated C-string
+ * `other` for equality.
+ */
+template <typename InIt>
+bool ComparePartialString(InIt begin, InIt end, const char* other) {
+    for (; begin != end && *other != '\0'; ++begin, ++other) {
+        if (*begin != *other) {
+            return false;
+        }
+    }
+    // Only return true if both strings finished at the same point
+    return (begin == end) == (*other == '\0');
+}
 }
diff --git a/src/common/symbols.cpp b/src/common/symbols.cpp
index d61f4c0c6..63ad6218b 100644
--- a/src/common/symbols.cpp
+++ b/src/common/symbols.cpp
@@ -31,7 +31,7 @@ namespace Symbols
    {
        TSymbolsMap::iterator foundSymbolItr;
        TSymbol symbol;
-        
        foundSymbolItr = g_symbols.find(_address);
        if (foundSymbolItr != g_symbols.end())
        {
@@ -44,7 +44,7 @@ namespace Symbols
    {
        return GetSymbol(_address).name;
    }
-    
    void Remove(u32 _address)
    {
        g_symbols.erase(_address);
diff --git a/src/common/symbols.h b/src/common/symbols.h
index b13a8001a..4560f5240 100644
--- a/src/common/symbols.h
+++ b/src/common/symbols.h
@@ -33,5 +33,5 @@ namespace Symbols
    const std::string GetName(u32 _address);
    void Remove(u32 _address);
    void Clear();
-};
+}
diff --git a/src/common/thread.cpp b/src/common/thread.cpp
index 60d8ed075..dc153ba71 100644
--- a/src/common/thread.cpp
+++ b/src/common/thread.cpp
@@ -25,7 +25,7 @@ int CurrentThreadId()
    return 0;
 #endif
 }
-    
 #ifdef _WIN32
 void SetThreadAffinity(std::thread::native_handle_type thread, u32 mask)
@@ -52,7 +52,7 @@ void SwitchCurrentThread()
 // Sets the debugger-visible name of the current thread.
 // Uses undocumented (actually, it is now documented) trick.
 // http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vsdebug/html/vxtsksettingthreadname.asp
-    
 // This is implemented much nicer in upcoming msvc++, see:
 // http://msdn.microsoft.com/en-us/library/xcb2z8hs(VS.100).aspx
 void SetCurrentThreadName(const char* szThreadName)
@@ -81,7 +81,7 @@ void SetCurrentThreadName(const char* szThreadName)
    __except(EXCEPTION_CONTINUE_EXECUTION)
    {}
 }
-    
 #else // !WIN32, so must be POSIX threads
 void SetThreadAffinity(std::thread::native_handle_type thread, u32 mask)
diff --git a/src/common/thread.h b/src/common/thread.h
index f7ace21b4..8c36d3f07 100644
--- a/src/common/thread.h
+++ b/src/common/thread.h
@@ -21,6 +21,7 @@
 //for gettimeofday and struct time(spec|val)
 #include <time.h>
 #include <sys/time.h>
+#include <unistd.h>
 #endif
 namespace Common
@@ -30,13 +31,13 @@ int CurrentThreadId();
 void SetThreadAffinity(std::thread::native_handle_type thread, u32 mask);
 void SetCurrentThreadAffinity(u32 mask);
-    
 class Event
 {
 public:
    Event()
        : is_set(false)
-    {};
+    {}
    void Set()
    {
@@ -135,7 +136,7 @@ private:
    const size_t m_count;
    volatile size_t m_waiting;
 };
-    
 void SleepCurrentThread(int ms);
 void SwitchCurrentThread();    // On Linux, this is equal to sleep 1ms
@@ -146,7 +147,7 @@ inline void YieldCPU()
 {
    std::this_thread::yield();
 }
-    
 void SetCurrentThreadName(const char *name);
-    
 } // namespace Common
diff --git a/src/common/thread_queue_list.h b/src/common/thread_queue_list.h
index 4a89572f6..7e3b620c7 100644
--- a/src/common/thread_queue_list.h
+++ b/src/common/thread_queue_list.h
@@ -1,6 +1,6 @@
 // Copyright 2014 Citra Emulator Project / PPSSPP Project
 // Licensed under GPLv2
-// Refer to the license.txt file included.  
+// Refer to the license.txt file included.
 #pragma once
@@ -12,7 +12,7 @@ template<class IdType>
 struct ThreadQueueList {
    // Number of queues (number of priority levels starting at 0.)
    static const int NUM_QUEUES = 128;
-    
    // Initial number of threads a single queue can handle.
    static const int INITIAL_CAPACITY = 32;
@@ -37,7 +37,7 @@ struct ThreadQueueList {
    ~ThreadQueueList() {
        for (int i = 0; i < NUM_QUEUES; ++i)
        {
-            if (queues[i].data != NULL)
+            if (queues[i].data != nullptr)
                free(queues[i].data);
        }
    }
@@ -46,7 +46,7 @@ struct ThreadQueueList {
    int contains(const IdType uid) {
        for (int i = 0; i < NUM_QUEUES; ++i)
        {
-            if (queues[i].data == NULL)
+            if (queues[i].data == nullptr)
                continue;
            Queue *cur = &queues[i];
@@ -133,7 +133,7 @@ struct ThreadQueueList {
    inline void clear() {
        for (int i = 0; i < NUM_QUEUES; ++i)
        {
-            if (queues[i].data != NULL)
+            if (queues[i].data != nullptr)
                free(queues[i].data);
        }
        memset(queues, 0, sizeof(queues));
@@ -147,7 +147,7 @@ struct ThreadQueueList {
    inline void prepare(u32 priority) {
        Queue *cur = &queues[priority];
-        if (cur->next == NULL)
+        if (cur->next == nullptr)
            link(priority, INITIAL_CAPACITY);
    }
@@ -176,7 +176,7 @@ private:
        for (int i = (int) priority - 1; i >= 0; --i)
        {
-            if (queues[i].next != NULL)
+            if (queues[i].next != nullptr)
            {
                cur->next = queues[i].next;
                queues[i].next = cur;
@@ -193,7 +193,7 @@ private:
        int size = cur->end - cur->first;
        if (size >= cur->capacity - 2)  {
            IdType *new_data = (IdType *)realloc(cur->data, cur->capacity * 2 * sizeof(IdType));
-            if (new_data != NULL)  {
+            if (new_data != nullptr)  {
                cur->capacity *= 2;
                cur->data = new_data;
            }
diff --git a/src/common/timer.cpp b/src/common/timer.cpp
index ded4a344e..4a797f751 100644
--- a/src/common/timer.cpp
+++ b/src/common/timer.cpp
@@ -25,7 +25,7 @@ u32 Timer::GetTimeMs()
    return timeGetTime();
 #else
    struct timeval t;
-    (void)gettimeofday(&t, NULL);
+    (void)gettimeofday(&t, nullptr);
    return ((u32)(t.tv_sec * 1000 + t.tv_usec / 1000));
 #endif
 }
@@ -183,7 +183,7 @@ std::string Timer::GetTimeFormatted()
    return StringFromFormat("%s:%03i", tmp, tp.millitm);
 #else
    struct timeval t;
-    (void)gettimeofday(&t, NULL);
+    (void)gettimeofday(&t, nullptr);
    return StringFromFormat("%s:%03d", tmp, (int)(t.tv_usec / 1000));
 #endif
 }
@@ -197,7 +197,7 @@ double Timer::GetDoubleTime()
    (void)::ftime(&tp);
 #else
    struct timeval t;
-    (void)gettimeofday(&t, NULL);
+    (void)gettimeofday(&t, nullptr);
 #endif
    // Get continuous timestamp
    u64 TmpSeconds = Common::Timer::GetTimeSinceJan1970();
diff --git a/src/common/utf8.cpp b/src/common/utf8.cpp
index be4ebc855..66a2f6339 100644
--- a/src/common/utf8.cpp
+++ b/src/common/utf8.cpp
@@ -281,28 +281,28 @@ int u8_read_escape_sequence(const char *str, u32 *dest)
    do {
      digs[dno++] = str[i++];
    } while (octal_digit(str[i]) && dno < 3);
-    ch = strtol(digs, NULL, 8);
+    ch = strtol(digs, nullptr, 8);
  }
  else if (str[0] == 'x') {
    while (hex_digit(str[i]) && dno < 2) {
      digs[dno++] = str[i++];
    }
    if (dno > 0)
-      ch = strtol(digs, NULL, 16);
+      ch = strtol(digs, nullptr, 16);
  }
  else if (str[0] == 'u') {
    while (hex_digit(str[i]) && dno < 4) {
      digs[dno++] = str[i++];
    }
    if (dno > 0)
-      ch = strtol(digs, NULL, 16);
+      ch = strtol(digs, nullptr, 16);
  }
  else if (str[0] == 'U') {
    while (hex_digit(str[i]) && dno < 8) {
      digs[dno++] = str[i++];
    }
    if (dno > 0)
-      ch = strtol(digs, NULL, 16);
+      ch = strtol(digs, nullptr, 16);
  }
  *dest = ch;
@@ -353,7 +353,7 @@ const char *u8_strchr(const char *s, u32 ch, int *charn)
    lasti = i;
    (*charn)++;
  }
-  return NULL;
+  return nullptr;
 }
 const char *u8_memchr(const char *s, u32 ch, size_t sz, int *charn)
@@ -378,7 +378,7 @@ const char *u8_memchr(const char *s, u32 ch, size_t sz, int *charn)
    lasti = i;
    (*charn)++;
  }
-  return NULL;
+  return nullptr;
 }
 int u8_is_locale_utf8(const char *locale)
@@ -419,35 +419,35 @@ bool UTF8StringHasNonASCII(const char *utf8string) {
 std::string ConvertWStringToUTF8(const wchar_t *wstr) {
    int len = (int)wcslen(wstr);
-    int size = (int)WideCharToMultiByte(CP_UTF8, 0, wstr, len, 0, 0, NULL, NULL);
+    int size = (int)WideCharToMultiByte(CP_UTF8, 0, wstr, len, 0, 0, nullptr, nullptr);
    std::string s;
    s.resize(size);
    if (size > 0) {
-        WideCharToMultiByte(CP_UTF8, 0, wstr, len, &s[0], size, NULL, NULL);
+        WideCharToMultiByte(CP_UTF8, 0, wstr, len, &s[0], size, nullptr, nullptr);
    }
    return s;
 }
 std::string ConvertWStringToUTF8(const std::wstring &wstr) {
    int len = (int)wstr.size();
-    int size = (int)WideCharToMultiByte(CP_UTF8, 0, wstr.c_str(), len, 0, 0, NULL, NULL);
+    int size = (int)WideCharToMultiByte(CP_UTF8, 0, wstr.c_str(), len, 0, 0, nullptr, nullptr);
    std::string s;
    s.resize(size);
    if (size > 0) {
-        WideCharToMultiByte(CP_UTF8, 0, wstr.c_str(), len, &s[0], size, NULL, NULL);
+        WideCharToMultiByte(CP_UTF8, 0, wstr.c_str(), len, &s[0], size, nullptr, nullptr);
    }
    return s;
 }
 void ConvertUTF8ToWString(wchar_t *dest, size_t destSize, const std::string &source) {
    int len = (int)source.size();
-    int size = (int)MultiByteToWideChar(CP_UTF8, 0, source.c_str(), len, NULL, 0);
+    int size = (int)MultiByteToWideChar(CP_UTF8, 0, source.c_str(), len, nullptr, 0);
    MultiByteToWideChar(CP_UTF8, 0, source.c_str(), len, dest, std::min((int)destSize, size));
 }
 std::wstring ConvertUTF8ToWString(const std::string &source) {
    int len = (int)source.size();
-    int size = (int)MultiByteToWideChar(CP_UTF8, 0, source.c_str(), len, NULL, 0);
+    int size = (int)MultiByteToWideChar(CP_UTF8, 0, source.c_str(), len, nullptr, 0);
    std::wstring str;
    str.resize(size);
    if (size > 0) {
diff --git a/src/core/CMakeLists.txt b/src/core/CMakeLists.txt
index f67481359..f71232c1a 100644
--- a/src/core/CMakeLists.txt
+++ b/src/core/CMakeLists.txt
@@ -18,29 +18,42 @@ set(SRCS
            arm/skyeye_common/vfp/vfpinstr.cpp
            arm/skyeye_common/vfp/vfpsingle.cpp
            file_sys/archive_romfs.cpp
+            file_sys/archive_savedata.cpp
            file_sys/archive_sdmc.cpp
+            file_sys/disk_archive.cpp
            file_sys/file_romfs.cpp
-            file_sys/file_sdmc.cpp
            file_sys/directory_romfs.cpp
-            file_sys/directory_sdmc.cpp
            hle/kernel/address_arbiter.cpp
-            hle/kernel/archive.cpp
            hle/kernel/event.cpp
            hle/kernel/kernel.cpp
            hle/kernel/mutex.cpp
+            hle/kernel/semaphore.cpp
            hle/kernel/shared_memory.cpp
            hle/kernel/thread.cpp
            hle/service/ac_u.cpp
+            hle/service/am_app.cpp
+            hle/service/am_net.cpp
            hle/service/apt_u.cpp
+            hle/service/boss_u.cpp
+            hle/service/cecd_u.cpp
+            hle/service/cfg_i.cpp
            hle/service/cfg_u.cpp
+            hle/service/csnd_snd.cpp
            hle/service/dsp_dsp.cpp
            hle/service/err_f.cpp
-            hle/service/fs_user.cpp
+            hle/service/fs/archive.cpp
+            hle/service/fs/fs_user.cpp
+            hle/service/frd_u.cpp
            hle/service/gsp_gpu.cpp
            hle/service/hid_user.cpp
+            hle/service/ir_rst.cpp
+            hle/service/ir_u.cpp
+            hle/service/ldr_ro.cpp
            hle/service/mic_u.cpp
+            hle/service/nim_aoc.cpp
            hle/service/ndm_u.cpp
            hle/service/nwm_uds.cpp
+            hle/service/pm_app.cpp
            hle/service/ptm_u.cpp
            hle/service/service.cpp
            hle/service/soc_u.cpp
@@ -51,10 +64,10 @@ set(SRCS
            hle/svc.cpp
            hw/gpu.cpp
            hw/hw.cpp
-            hw/ndma.cpp
            loader/elf.cpp
            loader/loader.cpp
            loader/ncch.cpp
+            loader/3dsx.cpp
            core.cpp
            core_timing.cpp
            mem_map.cpp
@@ -84,48 +97,63 @@ set(HEADERS
            arm/skyeye_common/vfp/vfp.h
            arm/skyeye_common/vfp/vfp_helper.h
            arm/arm_interface.h
-            file_sys/archive.h
+            file_sys/archive_backend.h
            file_sys/archive_romfs.h
+            file_sys/archive_savedata.h
            file_sys/archive_sdmc.h
-            file_sys/file.h
+            file_sys/disk_archive.h
+            file_sys/file_backend.h
            file_sys/file_romfs.h
-            file_sys/file_sdmc.h
+            file_sys/directory_backend.h
-            file_sys/directory.h
            file_sys/directory_romfs.h
-            file_sys/directory_sdmc.h
            hle/kernel/address_arbiter.h
-            hle/kernel/archive.h
            hle/kernel/event.h
            hle/kernel/kernel.h
            hle/kernel/mutex.h
+            hle/kernel/semaphore.h
+            hle/kernel/session.h
            hle/kernel/shared_memory.h
            hle/kernel/thread.h
            hle/service/ac_u.h
+            hle/service/am_app.h
+            hle/service/am_net.h
            hle/service/apt_u.h
+            hle/service/boss_u.h
+            hle/service/cecd_u.h
+            hle/service/cfg_i.h
            hle/service/cfg_u.h
+            hle/service/csnd_snd.h
            hle/service/dsp_dsp.h
            hle/service/err_f.h
-            hle/service/fs_user.h
+            hle/service/fs/archive.h
+            hle/service/fs/fs_user.h
+            hle/service/frd_u.h
            hle/service/gsp_gpu.h
            hle/service/hid_user.h
+            hle/service/ir_rst.h
+            hle/service/ir_u.h
+            hle/service/ldr_ro.h
            hle/service/mic_u.h
+            hle/service/nim_aoc.h
            hle/service/ndm_u.h
            hle/service/nwm_uds.h
+            hle/service/pm_app.h
            hle/service/ptm_u.h
            hle/service/service.h
            hle/service/soc_u.h
            hle/service/srv.h
            hle/service/ssl_c.h
            hle/config_mem.h
+            hle/result.h
            hle/function_wrappers.h
            hle/hle.h
            hle/svc.h
            hw/gpu.h
            hw/hw.h
-            hw/ndma.h
            loader/elf.h
            loader/loader.h
            loader/ncch.h
+            loader/3dsx.h
            core.h
            core_timing.h
            mem_map.h
diff --git a/src/core/arm/arm_interface.h b/src/core/arm/arm_interface.h
index be677ae20..3ae528562 100644
--- a/src/core/arm/arm_interface.h
+++ b/src/core/arm/arm_interface.h
@@ -1,6 +1,6 @@
 // Copyright 2014 Citra Emulator Project
 // Licensed under GPLv2
-// Refer to the license.txt file included.  
+// Refer to the license.txt file included.
 #pragma once
@@ -16,7 +16,7 @@ public:
        num_instructions = 0;
    }
-    ~ARM_Interface() {
+    virtual ~ARM_Interface() {
    }
    /**
@@ -63,7 +63,7 @@ public:
     * Get the current CPSR register
     * @return Returns the value of the CPSR register
     */
-    virtual u32 GetCPSR() const = 0;  
+    virtual u32 GetCPSR() const = 0;
    /**
     * Set the current CPSR register
@@ -98,7 +98,7 @@ public:
    }
 protected:
-    
    /**
     * Executes the given number of instructions
     * @param num_instructions Number of instructions to executes
diff --git a/src/core/arm/disassembler/load_symbol_map.cpp b/src/core/arm/disassembler/load_symbol_map.cpp
index 0f384ad3e..55278474b 100644
--- a/src/core/arm/disassembler/load_symbol_map.cpp
+++ b/src/core/arm/disassembler/load_symbol_map.cpp
@@ -22,8 +22,8 @@ void LoadSymbolMap(std::string filename) {
    while (std::getline(infile, line)) {
        std::istringstream iss(line);
-        if (!(iss >> address_str >> size >> function_name)) { 
+        if (!(iss >> address_str >> size >> function_name)) {
-            break; // Error parsing 
+            break; // Error parsing
        }
        u32 address = std::stoul(address_str, nullptr, 16);
diff --git a/src/core/arm/dyncom/arm_dyncom.cpp b/src/core/arm/dyncom/arm_dyncom.cpp
index 669b612fc..6c8ea211e 100644
--- a/src/core/arm/dyncom/arm_dyncom.cpp
+++ b/src/core/arm/dyncom/arm_dyncom.cpp
@@ -1,6 +1,6 @@
 // Copyright 2014 Citra Emulator Project
 // Licensed under GPLv2
-// Refer to the license.txt file included.  
+// Refer to the license.txt file included.
 #include "core/arm/skyeye_common/armcpu.h"
 #include "core/arm/skyeye_common/armemu.h"
@@ -60,7 +60,7 @@ void ARM_DynCom::SetPC(u32 pc) {
 * @return Returns current PC
 */
 u32 ARM_DynCom::GetPC() const {
-    return state->pc;
+    return state->Reg[15];
 }
 /**
@@ -110,9 +110,12 @@ u64 ARM_DynCom::GetTicks() const {
 * @param num_instructions Number of instructions to executes
 */
 void ARM_DynCom::ExecuteInstructions(int num_instructions) {
-    ticks += num_instructions;
    state->NumInstrsToExecute = num_instructions;
-    InterpreterMainLoop(state.get());
+    // Dyncom only breaks on instruction dispatch. This only happens on every instruction when
+    // executing one instruction at a time. Otherwise, if a block is being executed, more
+    // instructions may actually be executed than specified.
+    ticks += InterpreterMainLoop(state.get());
 }
 /**
@@ -126,7 +129,7 @@ void ARM_DynCom::SaveContext(ThreadContext& ctx) {
    ctx.sp = state->Reg[13];
    ctx.lr = state->Reg[14];
-    ctx.pc = state->pc;
+    ctx.pc = state->Reg[15];
    ctx.cpsr = state->Cpsr;
    ctx.fpscr = state->VFP[1];
diff --git a/src/core/arm/dyncom/arm_dyncom.h b/src/core/arm/dyncom/arm_dyncom.h
index 1f8cd3a3a..51eea41ed 100644
--- a/src/core/arm/dyncom/arm_dyncom.h
+++ b/src/core/arm/dyncom/arm_dyncom.h
@@ -1,6 +1,6 @@
 // Copyright 2014 Citra Emulator Project
 // Licensed under GPLv2
-// Refer to the license.txt file included.  
+// Refer to the license.txt file included.
 #pragma once
@@ -19,7 +19,7 @@ public:
    /**
     * Set the Program Counter to an address
-     * @param addr Address to set PC to
+     * @param pc Address to set PC to
     */
    void SetPC(u32 pc) override;
diff --git a/src/core/arm/dyncom/arm_dyncom_interpreter.cpp b/src/core/arm/dyncom/arm_dyncom_interpreter.cpp
index fe1501b59..68012bffd 100644
--- a/src/core/arm/dyncom/arm_dyncom_interpreter.cpp
+++ b/src/core/arm/dyncom/arm_dyncom_interpreter.cpp
@@ -26,7 +26,7 @@
 #define CITRA_IGNORE_EXIT(x)
 #include <algorithm>
-#include <map>
+#include <unordered_map>
 #include <stdio.h>
 #include <assert.h>
 #include <cstdio>
@@ -94,9 +94,8 @@ typedef unsigned int (*shtop_fp_t)(arm_processor *cpu, unsigned int sht_oper);
 /* exclusive memory access */
 static int exclusive_detect(ARMul_State* state, ARMword addr){
-        int i;
        #if 0
-        for(i = 0; i < 128; i++){
+        for(int i = 0; i < 128; i++){
                if(state->exclusive_tag_array[i] == addr)
                        return 0;
        }
@@ -108,9 +107,8 @@ static int exclusive_detect(ARMul_State* state, ARMword addr){
 }
 static void add_exclusive_addr(ARMul_State* state, ARMword addr){
-        int i;
        #if 0
-        for(i = 0; i < 128; i++){
+        for(int i = 0; i < 128; i++){
                if(state->exclusive_tag_array[i] == 0xffffffff){
                        state->exclusive_tag_array[i] = addr;
                        //DEBUG_LOG(ARM11, "In %s, add  addr 0x%x\n", __func__, addr);
@@ -435,9 +433,7 @@ typedef struct _ldst_inst {
        unsigned int inst;
        get_addr_fp_t get_addr;
 } ldst_inst;
-#define DEBUG_MSG       DEBUG_LOG(ARM11, "in %s %d\n", __FUNCTION__, __LINE__);         \
+#define DEBUG_MSG LOG_DEBUG(Core_ARM11, "inst is %x", inst); CITRA_IGNORE_EXIT(0)
-                        DEBUG_LOG(ARM11, "inst is %x\n", inst);                         \
-                        CITRA_IGNORE_EXIT(0)
 int CondPassed(arm_processor *cpu, unsigned int cond);
 #define LnSWoUB(s)      glue(LnSWoUB, s)
@@ -1425,7 +1421,7 @@ inline void *AllocBuffer(unsigned int size)
        int start = top;
        top += size;
        if (top > CACHE_BUFFER_SIZE) {
-                DEBUG_LOG(ARM11, "inst_buf is full\n");
+                LOG_ERROR(Core_ARM11, "inst_buf is full");
                CITRA_IGNORE_EXIT(-1);
        }
        return (void *)&inst_buf[start];
@@ -1611,6 +1607,10 @@ get_addr_fp_t get_calc_addr_op(unsigned int inst)
 #define CHECK_RM                        (inst_cream->Rm == 15)
 #define CHECK_RS                        (inst_cream->Rs == 15)
+#define UNIMPLEMENTED_INSTRUCTION(mnemonic) \
+    LOG_ERROR(Core_ARM11, "unimplemented instruction: %s", mnemonic); \
+    CITRA_IGNORE_EXIT(-1); \
+    return nullptr;
 ARM_INST_PTR INTERPRETER_TRANSLATE(adc)(unsigned int inst, int index)
 {
@@ -1725,7 +1725,7 @@ ARM_INST_PTR INTERPRETER_TRANSLATE(bic)(unsigned int inst, int index)
                inst_base->br = INDIRECT_BRANCH;
        return inst_base;
 }
-ARM_INST_PTR INTERPRETER_TRANSLATE(bkpt)(unsigned int inst, int index){DEBUG_LOG(ARM11, "in func %s\n", __FUNCTION__);CITRA_IGNORE_EXIT(-1); return nullptr;}
+ARM_INST_PTR INTERPRETER_TRANSLATE(bkpt)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("BKPT"); }
 ARM_INST_PTR INTERPRETER_TRANSLATE(blx)(unsigned int inst, int index)
 {
        arm_inst *inst_base = (arm_inst *)AllocBuffer(sizeof(arm_inst) + sizeof(blx_inst));
@@ -1760,7 +1760,7 @@ ARM_INST_PTR INTERPRETER_TRANSLATE(bx)(unsigned int inst, int index)
        return inst_base;
 }
-ARM_INST_PTR INTERPRETER_TRANSLATE(bxj)(unsigned int inst, int index){DEBUG_LOG(ARM11, "in func %s\n", __FUNCTION__);CITRA_IGNORE_EXIT(-1); return nullptr;}
+ARM_INST_PTR INTERPRETER_TRANSLATE(bxj)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("BXJ"); }
 ARM_INST_PTR INTERPRETER_TRANSLATE(cdp)(unsigned int inst, int index){
        arm_inst *inst_base = (arm_inst *)AllocBuffer(sizeof(arm_inst) + sizeof(cdp_inst));
        cdp_inst *inst_cream = (cdp_inst *)inst_base->component;
@@ -1777,7 +1777,7 @@ ARM_INST_PTR INTERPRETER_TRANSLATE(cdp)(unsigned int inst, int index){
        inst_cream->opcode_1   = BITS(inst, 20, 23);
        inst_cream->inst = inst;
-        DEBUG_LOG(ARM11, "in func %s inst %x index %x\n", __FUNCTION__, inst, index);
+        LOG_TRACE(Core_ARM11, "inst %x index %x", inst, index);
        return inst_base;
 }
 ARM_INST_PTR INTERPRETER_TRANSLATE(clrex)(unsigned int inst, int index)
@@ -2207,7 +2207,7 @@ ARM_INST_PTR INTERPRETER_TRANSLATE(mcr)(unsigned int inst, int index)
        inst_cream->inst     = inst;
        return inst_base;
 }
-ARM_INST_PTR INTERPRETER_TRANSLATE(mcrr)(unsigned int inst, int index){DEBUG_LOG(ARM11, "in func %s\n", __FUNCTION__);CITRA_IGNORE_EXIT(-1); return nullptr;}
+ARM_INST_PTR INTERPRETER_TRANSLATE(mcrr)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("MCRR"); }
 ARM_INST_PTR INTERPRETER_TRANSLATE(mla)(unsigned int inst, int index)
 {
        arm_inst *inst_base = (arm_inst *)AllocBuffer(sizeof(arm_inst) + sizeof(mla_inst));
@@ -2266,7 +2266,7 @@ ARM_INST_PTR INTERPRETER_TRANSLATE(mrc)(unsigned int inst, int index)
        inst_cream->inst     = inst;
        return inst_base;
 }
-ARM_INST_PTR INTERPRETER_TRANSLATE(mrrc)(unsigned int inst, int index){DEBUG_LOG(ARM11, "in func %s\n", __FUNCTION__);CITRA_IGNORE_EXIT(-1); return nullptr;}
+ARM_INST_PTR INTERPRETER_TRANSLATE(mrrc)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("MRRC"); }
 ARM_INST_PTR INTERPRETER_TRANSLATE(mrs)(unsigned int inst, int index)
 {
        arm_inst *inst_base = (arm_inst *)AllocBuffer(sizeof(arm_inst) + sizeof(mrs_inst));
@@ -2360,8 +2360,8 @@ ARM_INST_PTR INTERPRETER_TRANSLATE(orr)(unsigned int inst, int index)
        }
        return inst_base;
 }
-ARM_INST_PTR INTERPRETER_TRANSLATE(pkhbt)(unsigned int inst, int index){DEBUG_LOG(ARM11, "in func %s\n", __FUNCTION__);CITRA_IGNORE_EXIT(-1); return nullptr;}
+ARM_INST_PTR INTERPRETER_TRANSLATE(pkhbt)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("PKHBT"); }
-ARM_INST_PTR INTERPRETER_TRANSLATE(pkhtb)(unsigned int inst, int index){DEBUG_LOG(ARM11, "in func %s\n", __FUNCTION__);CITRA_IGNORE_EXIT(-1); return nullptr;}
+ARM_INST_PTR INTERPRETER_TRANSLATE(pkhtb)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("PKHTB"); }
 ARM_INST_PTR INTERPRETER_TRANSLATE(pld)(unsigned int inst, int index)
 {
        arm_inst *inst_base = (arm_inst *)AllocBuffer(sizeof(arm_inst) + sizeof(pld_inst));
@@ -2373,16 +2373,16 @@ ARM_INST_PTR INTERPRETER_TRANSLATE(pld)(unsigned int inst, int index)
        return inst_base;
 }
-ARM_INST_PTR INTERPRETER_TRANSLATE(qadd)(unsigned int inst, int index){DEBUG_LOG(ARM11, "in func %s\n", __FUNCTION__);CITRA_IGNORE_EXIT(-1); return nullptr;}
+ARM_INST_PTR INTERPRETER_TRANSLATE(qadd)(unsigned int inst, int index)     { UNIMPLEMENTED_INSTRUCTION("QADD"); }
-ARM_INST_PTR INTERPRETER_TRANSLATE(qadd16)(unsigned int inst, int index){DEBUG_LOG(ARM11, "in func %s\n", __FUNCTION__);CITRA_IGNORE_EXIT(-1); return nullptr;}
+ARM_INST_PTR INTERPRETER_TRANSLATE(qadd16)(unsigned int inst, int index)   { UNIMPLEMENTED_INSTRUCTION("QADD16"); }
-ARM_INST_PTR INTERPRETER_TRANSLATE(qadd8)(unsigned int inst, int index){DEBUG_LOG(ARM11, "in func %s\n", __FUNCTION__);CITRA_IGNORE_EXIT(-1); return nullptr;}
+ARM_INST_PTR INTERPRETER_TRANSLATE(qadd8)(unsigned int inst, int index)    { UNIMPLEMENTED_INSTRUCTION("QADD8"); }
-ARM_INST_PTR INTERPRETER_TRANSLATE(qaddsubx)(unsigned int inst, int index){DEBUG_LOG(ARM11, "in func %s\n", __FUNCTION__);CITRA_IGNORE_EXIT(-1); return nullptr;}
+ARM_INST_PTR INTERPRETER_TRANSLATE(qaddsubx)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("QADDSUBX"); }
-ARM_INST_PTR INTERPRETER_TRANSLATE(qdadd)(unsigned int inst, int index){DEBUG_LOG(ARM11, "in func %s\n", __FUNCTION__);CITRA_IGNORE_EXIT(-1); return nullptr;}
+ARM_INST_PTR INTERPRETER_TRANSLATE(qdadd)(unsigned int inst, int index)    { UNIMPLEMENTED_INSTRUCTION("QDADD"); }
-ARM_INST_PTR INTERPRETER_TRANSLATE(qdsub)(unsigned int inst, int index){DEBUG_LOG(ARM11, "in func %s\n", __FUNCTION__);CITRA_IGNORE_EXIT(-1); return nullptr;}
+ARM_INST_PTR INTERPRETER_TRANSLATE(qdsub)(unsigned int inst, int index)    { UNIMPLEMENTED_INSTRUCTION("QDSUB"); }
-ARM_INST_PTR INTERPRETER_TRANSLATE(qsub)(unsigned int inst, int index){DEBUG_LOG(ARM11, "in func %s\n", __FUNCTION__);CITRA_IGNORE_EXIT(-1); return nullptr;}
+ARM_INST_PTR INTERPRETER_TRANSLATE(qsub)(unsigned int inst, int index)     { UNIMPLEMENTED_INSTRUCTION("QSUB"); }
-ARM_INST_PTR INTERPRETER_TRANSLATE(qsub16)(unsigned int inst, int index){DEBUG_LOG(ARM11, "in func %s\n", __FUNCTION__);CITRA_IGNORE_EXIT(-1); return nullptr;}
+ARM_INST_PTR INTERPRETER_TRANSLATE(qsub16)(unsigned int inst, int index)   { UNIMPLEMENTED_INSTRUCTION("QSUB16"); }
-ARM_INST_PTR INTERPRETER_TRANSLATE(qsub8)(unsigned int inst, int index){DEBUG_LOG(ARM11, "in func %s\n", __FUNCTION__);CITRA_IGNORE_EXIT(-1); return nullptr;}
+ARM_INST_PTR INTERPRETER_TRANSLATE(qsub8)(unsigned int inst, int index)    { UNIMPLEMENTED_INSTRUCTION("QSUB8"); }
-ARM_INST_PTR INTERPRETER_TRANSLATE(qsubaddx)(unsigned int inst, int index){DEBUG_LOG(ARM11, "in func %s\n", __FUNCTION__);CITRA_IGNORE_EXIT(-1); return nullptr;}
+ARM_INST_PTR INTERPRETER_TRANSLATE(qsubaddx)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("QSUBADDX"); }
 ARM_INST_PTR INTERPRETER_TRANSLATE(rev)(unsigned int inst, int index)
 {
        arm_inst *inst_base = (arm_inst *)AllocBuffer(sizeof(arm_inst) + sizeof(rev_inst));
@@ -2412,8 +2412,8 @@ ARM_INST_PTR INTERPRETER_TRANSLATE(rev16)(unsigned int inst, int index){
        return inst_base;
 }
-ARM_INST_PTR INTERPRETER_TRANSLATE(revsh)(unsigned int inst, int index){DEBUG_LOG(ARM11, "in func %s\n", __FUNCTION__);CITRA_IGNORE_EXIT(-1); return nullptr;}
+ARM_INST_PTR INTERPRETER_TRANSLATE(revsh)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("REVSH"); }
-ARM_INST_PTR INTERPRETER_TRANSLATE(rfe)(unsigned int inst, int index){DEBUG_LOG(ARM11, "in func %s\n", __FUNCTION__);CITRA_IGNORE_EXIT(-1); return nullptr;}
+ARM_INST_PTR INTERPRETER_TRANSLATE(rfe)(unsigned int inst, int index)   { UNIMPLEMENTED_INSTRUCTION("RFE"); }
 ARM_INST_PTR INTERPRETER_TRANSLATE(rsb)(unsigned int inst, int index)
 {
        arm_inst *inst_base = (arm_inst *)AllocBuffer(sizeof(arm_inst) + sizeof(rsb_inst));
@@ -2462,9 +2462,9 @@ ARM_INST_PTR INTERPRETER_TRANSLATE(rsc)(unsigned int inst, int index)
        }
        return inst_base;
 }
-ARM_INST_PTR INTERPRETER_TRANSLATE(sadd16)(unsigned int inst, int index){DEBUG_LOG(ARM11, "in func %s\n", __FUNCTION__);CITRA_IGNORE_EXIT(-1); return nullptr;}
+ARM_INST_PTR INTERPRETER_TRANSLATE(sadd16)(unsigned int inst, int index)   { UNIMPLEMENTED_INSTRUCTION("SADD16"); }
-ARM_INST_PTR INTERPRETER_TRANSLATE(sadd8)(unsigned int inst, int index){DEBUG_LOG(ARM11, "in func %s\n", __FUNCTION__);CITRA_IGNORE_EXIT(-1); return nullptr;}
+ARM_INST_PTR INTERPRETER_TRANSLATE(sadd8)(unsigned int inst, int index)    { UNIMPLEMENTED_INSTRUCTION("SADD8"); }
-ARM_INST_PTR INTERPRETER_TRANSLATE(saddsubx)(unsigned int inst, int index){DEBUG_LOG(ARM11, "in func %s\n", __FUNCTION__);CITRA_IGNORE_EXIT(-1); return nullptr;}
+ARM_INST_PTR INTERPRETER_TRANSLATE(saddsubx)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("SADDSUBX"); }
 ARM_INST_PTR INTERPRETER_TRANSLATE(sbc)(unsigned int inst, int index)
 {
        arm_inst *inst_base = (arm_inst *)AllocBuffer(sizeof(arm_inst) + sizeof(sbc_inst));
@@ -2489,14 +2489,14 @@ ARM_INST_PTR INTERPRETER_TRANSLATE(sbc)(unsigned int inst, int index)
        }
        return inst_base;
 }
-ARM_INST_PTR INTERPRETER_TRANSLATE(sel)(unsigned int inst, int index){DEBUG_LOG(ARM11, "in func %s\n", __FUNCTION__);CITRA_IGNORE_EXIT(-1); return nullptr;}
+ARM_INST_PTR INTERPRETER_TRANSLATE(sel)(unsigned int inst, int index)       { UNIMPLEMENTED_INSTRUCTION("SEL"); }
-ARM_INST_PTR INTERPRETER_TRANSLATE(setend)(unsigned int inst, int index){DEBUG_LOG(ARM11, "in func %s\n", __FUNCTION__);CITRA_IGNORE_EXIT(-1); return nullptr;}
+ARM_INST_PTR INTERPRETER_TRANSLATE(setend)(unsigned int inst, int index)    { UNIMPLEMENTED_INSTRUCTION("SETEND"); }
-ARM_INST_PTR INTERPRETER_TRANSLATE(shadd16)(unsigned int inst, int index){DEBUG_LOG(ARM11, "in func %s\n", __FUNCTION__);CITRA_IGNORE_EXIT(-1); return nullptr;}
+ARM_INST_PTR INTERPRETER_TRANSLATE(shadd16)(unsigned int inst, int index)   { UNIMPLEMENTED_INSTRUCTION("SHADD16"); }
-ARM_INST_PTR INTERPRETER_TRANSLATE(shadd8)(unsigned int inst, int index){DEBUG_LOG(ARM11, "in func %s\n", __FUNCTION__);CITRA_IGNORE_EXIT(-1); return nullptr;}
+ARM_INST_PTR INTERPRETER_TRANSLATE(shadd8)(unsigned int inst, int index)    { UNIMPLEMENTED_INSTRUCTION("SHADD8"); }
-ARM_INST_PTR INTERPRETER_TRANSLATE(shaddsubx)(unsigned int inst, int index){DEBUG_LOG(ARM11, "in func %s\n", __FUNCTION__);CITRA_IGNORE_EXIT(-1); return nullptr;}
+ARM_INST_PTR INTERPRETER_TRANSLATE(shaddsubx)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("SHADDSUBX"); }
-ARM_INST_PTR INTERPRETER_TRANSLATE(shsub16)(unsigned int inst, int index){DEBUG_LOG(ARM11, "in func %s\n", __FUNCTION__);CITRA_IGNORE_EXIT(-1); return nullptr;}
+ARM_INST_PTR INTERPRETER_TRANSLATE(shsub16)(unsigned int inst, int index)   { UNIMPLEMENTED_INSTRUCTION("SHSUB16"); }
-ARM_INST_PTR INTERPRETER_TRANSLATE(shsub8)(unsigned int inst, int index){DEBUG_LOG(ARM11, "in func %s\n", __FUNCTION__);CITRA_IGNORE_EXIT(-1); return nullptr;}
+ARM_INST_PTR INTERPRETER_TRANSLATE(shsub8)(unsigned int inst, int index)    { UNIMPLEMENTED_INSTRUCTION("SHSUB8"); }
-ARM_INST_PTR INTERPRETER_TRANSLATE(shsubaddx)(unsigned int inst, int index){DEBUG_LOG(ARM11, "in func %s\n", __FUNCTION__);CITRA_IGNORE_EXIT(-1); return nullptr;}
+ARM_INST_PTR INTERPRETER_TRANSLATE(shsubaddx)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("SHSUBADDX"); }
 ARM_INST_PTR INTERPRETER_TRANSLATE(smla)(unsigned int inst, int index)
 {
        arm_inst *inst_base = (arm_inst *)AllocBuffer(sizeof(arm_inst) + sizeof(smla_inst));
@@ -2555,15 +2555,15 @@ ARM_INST_PTR INTERPRETER_TRANSLATE(smlal)(unsigned int inst, int index)
                inst_base->load_r15 = 1;
        return inst_base;
 }
-ARM_INST_PTR INTERPRETER_TRANSLATE(smlalxy)(unsigned int inst, int index){DEBUG_LOG(ARM11, "in func %s\n", __FUNCTION__);CITRA_IGNORE_EXIT(-1); return nullptr;}
+ARM_INST_PTR INTERPRETER_TRANSLATE(smlalxy)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("SMLALXY"); }
-ARM_INST_PTR INTERPRETER_TRANSLATE(smlald)(unsigned int inst, int index){DEBUG_LOG(ARM11, "in func %s\n", __FUNCTION__);CITRA_IGNORE_EXIT(-1); return nullptr;}
+ARM_INST_PTR INTERPRETER_TRANSLATE(smlald)(unsigned int inst, int index)  { UNIMPLEMENTED_INSTRUCTION("SMLALD"); }
-ARM_INST_PTR INTERPRETER_TRANSLATE(smlaw)(unsigned int inst, int index){DEBUG_LOG(ARM11, "in func %s\n", __FUNCTION__);CITRA_IGNORE_EXIT(-1); return nullptr;}
+ARM_INST_PTR INTERPRETER_TRANSLATE(smlaw)(unsigned int inst, int index)   { UNIMPLEMENTED_INSTRUCTION("SMLAW"); }
-ARM_INST_PTR INTERPRETER_TRANSLATE(smlsd)(unsigned int inst, int index){DEBUG_LOG(ARM11, "in func %s\n", __FUNCTION__);CITRA_IGNORE_EXIT(-1); return nullptr;}
+ARM_INST_PTR INTERPRETER_TRANSLATE(smlsd)(unsigned int inst, int index)   { UNIMPLEMENTED_INSTRUCTION("SMLSD"); }
-ARM_INST_PTR INTERPRETER_TRANSLATE(smlsld)(unsigned int inst, int index){DEBUG_LOG(ARM11, "in func %s\n", __FUNCTION__);CITRA_IGNORE_EXIT(-1); return nullptr;}
+ARM_INST_PTR INTERPRETER_TRANSLATE(smlsld)(unsigned int inst, int index)  { UNIMPLEMENTED_INSTRUCTION("SMLSLD"); }
-ARM_INST_PTR INTERPRETER_TRANSLATE(smmla)(unsigned int inst, int index){DEBUG_LOG(ARM11, "in func %s\n", __FUNCTION__);CITRA_IGNORE_EXIT(-1); return nullptr;}
+ARM_INST_PTR INTERPRETER_TRANSLATE(smmla)(unsigned int inst, int index)   { UNIMPLEMENTED_INSTRUCTION("SMMLA"); }
-ARM_INST_PTR INTERPRETER_TRANSLATE(smmls)(unsigned int inst, int index){DEBUG_LOG(ARM11, "in func %s\n", __FUNCTION__);CITRA_IGNORE_EXIT(-1); return nullptr;}
+ARM_INST_PTR INTERPRETER_TRANSLATE(smmls)(unsigned int inst, int index)   { UNIMPLEMENTED_INSTRUCTION("SMMLS"); }
-ARM_INST_PTR INTERPRETER_TRANSLATE(smmul)(unsigned int inst, int index){DEBUG_LOG(ARM11, "in func %s\n", __FUNCTION__);CITRA_IGNORE_EXIT(-1); return nullptr;}
+ARM_INST_PTR INTERPRETER_TRANSLATE(smmul)(unsigned int inst, int index)   { UNIMPLEMENTED_INSTRUCTION("SMMUL"); }
-ARM_INST_PTR INTERPRETER_TRANSLATE(smuad)(unsigned int inst, int index){DEBUG_LOG(ARM11, "in func %s\n", __FUNCTION__);CITRA_IGNORE_EXIT(-1); return nullptr;}
+ARM_INST_PTR INTERPRETER_TRANSLATE(smuad)(unsigned int inst, int index)   { UNIMPLEMENTED_INSTRUCTION("SMUAD"); }
 ARM_INST_PTR INTERPRETER_TRANSLATE(smul)(unsigned int inst, int index)
 {
        arm_inst *inst_base = (arm_inst *)AllocBuffer(sizeof(arm_inst) + sizeof(smul_inst));
@@ -2626,13 +2626,13 @@ ARM_INST_PTR INTERPRETER_TRANSLATE(smulw)(unsigned int inst, int index)
                inst_base->load_r15 = 1;
        return inst_base;
 }
-ARM_INST_PTR INTERPRETER_TRANSLATE(smusd)(unsigned int inst, int index){DEBUG_LOG(ARM11, "in func %s\n", __FUNCTION__);CITRA_IGNORE_EXIT(-1); return nullptr;}
+ARM_INST_PTR INTERPRETER_TRANSLATE(smusd)(unsigned int inst, int index)    { UNIMPLEMENTED_INSTRUCTION("SMUSD"); }
-ARM_INST_PTR INTERPRETER_TRANSLATE(srs)(unsigned int inst, int index){DEBUG_LOG(ARM11, "in func %s\n", __FUNCTION__);CITRA_IGNORE_EXIT(-1); return nullptr;}
+ARM_INST_PTR INTERPRETER_TRANSLATE(srs)(unsigned int inst, int index)      { UNIMPLEMENTED_INSTRUCTION("SRS"); }
-ARM_INST_PTR INTERPRETER_TRANSLATE(ssat)(unsigned int inst, int index){DEBUG_LOG(ARM11, "in func %s\n", __FUNCTION__);CITRA_IGNORE_EXIT(-1); return nullptr;}
+ARM_INST_PTR INTERPRETER_TRANSLATE(ssat)(unsigned int inst, int index)     { UNIMPLEMENTED_INSTRUCTION("SSAT"); }
-ARM_INST_PTR INTERPRETER_TRANSLATE(ssat16)(unsigned int inst, int index){DEBUG_LOG(ARM11, "in func %s\n", __FUNCTION__);CITRA_IGNORE_EXIT(-1); return nullptr;}
+ARM_INST_PTR INTERPRETER_TRANSLATE(ssat16)(unsigned int inst, int index)   { UNIMPLEMENTED_INSTRUCTION("SSAT16"); }
-ARM_INST_PTR INTERPRETER_TRANSLATE(ssub16)(unsigned int inst, int index){DEBUG_LOG(ARM11, "in func %s\n", __FUNCTION__);CITRA_IGNORE_EXIT(-1); return nullptr;}
+ARM_INST_PTR INTERPRETER_TRANSLATE(ssub16)(unsigned int inst, int index)   { UNIMPLEMENTED_INSTRUCTION("SSUB16"); }
-ARM_INST_PTR INTERPRETER_TRANSLATE(ssub8)(unsigned int inst, int index){DEBUG_LOG(ARM11, "in func %s\n", __FUNCTION__);CITRA_IGNORE_EXIT(-1); return nullptr;}
+ARM_INST_PTR INTERPRETER_TRANSLATE(ssub8)(unsigned int inst, int index)    { UNIMPLEMENTED_INSTRUCTION("SSUB8"); }
-ARM_INST_PTR INTERPRETER_TRANSLATE(ssubaddx)(unsigned int inst, int index){DEBUG_LOG(ARM11, "in func %s\n", __FUNCTION__);CITRA_IGNORE_EXIT(-1); return nullptr;}
+ARM_INST_PTR INTERPRETER_TRANSLATE(ssubaddx)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("SSUBADDX"); }
 ARM_INST_PTR INTERPRETER_TRANSLATE(stc)(unsigned int inst, int index)
 {
        arm_inst *inst_base = (arm_inst *)AllocBuffer(sizeof(arm_inst) + sizeof(stc_inst));
@@ -2939,9 +2939,9 @@ ARM_INST_PTR INTERPRETER_TRANSLATE(sxtab)(unsigned int inst, int index){
        return inst_base;
 }
-ARM_INST_PTR INTERPRETER_TRANSLATE(sxtab16)(unsigned int inst, int index){DEBUG_LOG(ARM11, "in func %s\n", __FUNCTION__);CITRA_IGNORE_EXIT(-1); return nullptr;}
+ARM_INST_PTR INTERPRETER_TRANSLATE(sxtab16)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("SXTAB16"); }
 ARM_INST_PTR INTERPRETER_TRANSLATE(sxtah)(unsigned int inst, int index){
-        DEBUG_LOG(ARM11, "in func %s, SXTAH untested\n", __func__);
+        LOG_WARNING(Core_ARM11, "SXTAH untested");
        arm_inst *inst_base = (arm_inst *)AllocBuffer(sizeof(arm_inst) + sizeof(sxtah_inst));
        sxtah_inst *inst_cream = (sxtah_inst *)inst_base->component;
@@ -2957,7 +2957,7 @@ ARM_INST_PTR INTERPRETER_TRANSLATE(sxtah)(unsigned int inst, int index){
        return inst_base;
 }
-ARM_INST_PTR INTERPRETER_TRANSLATE(sxtb16)(unsigned int inst, int index){DEBUG_LOG(ARM11, "in func %s\n", __FUNCTION__);CITRA_IGNORE_EXIT(-1); return nullptr;}
+ARM_INST_PTR INTERPRETER_TRANSLATE(sxtb16)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("SXTB16"); }
 ARM_INST_PTR INTERPRETER_TRANSLATE(teq)(unsigned int inst, int index)
 {
        arm_inst *inst_base = (arm_inst *)AllocBuffer(sizeof(arm_inst) + sizeof(teq_inst));
@@ -3001,16 +3001,16 @@ ARM_INST_PTR INTERPRETER_TRANSLATE(tst)(unsigned int inst, int index)
                inst_base->load_r15 = 1;
        return inst_base;
 }
-ARM_INST_PTR INTERPRETER_TRANSLATE(uadd16)(unsigned int inst, int index){DEBUG_LOG(ARM11, "in func %s\n", __FUNCTION__);CITRA_IGNORE_EXIT(-1); return nullptr;}
+ARM_INST_PTR INTERPRETER_TRANSLATE(uadd16)(unsigned int inst, int index)    { UNIMPLEMENTED_INSTRUCTION("UADD16"); }
-ARM_INST_PTR INTERPRETER_TRANSLATE(uadd8)(unsigned int inst, int index){DEBUG_LOG(ARM11, "in func %s\n", __FUNCTION__);CITRA_IGNORE_EXIT(-1); return nullptr;}
+ARM_INST_PTR INTERPRETER_TRANSLATE(uadd8)(unsigned int inst, int index)     { UNIMPLEMENTED_INSTRUCTION("UADD8"); }
-ARM_INST_PTR INTERPRETER_TRANSLATE(uaddsubx)(unsigned int inst, int index){DEBUG_LOG(ARM11, "in func %s\n", __FUNCTION__);CITRA_IGNORE_EXIT(-1); return nullptr;}
+ARM_INST_PTR INTERPRETER_TRANSLATE(uaddsubx)(unsigned int inst, int index)  { UNIMPLEMENTED_INSTRUCTION("UADDSUBX"); }
-ARM_INST_PTR INTERPRETER_TRANSLATE(uhadd16)(unsigned int inst, int index){DEBUG_LOG(ARM11, "in func %s\n", __FUNCTION__);CITRA_IGNORE_EXIT(-1); return nullptr;}
+ARM_INST_PTR INTERPRETER_TRANSLATE(uhadd16)(unsigned int inst, int index)   { UNIMPLEMENTED_INSTRUCTION("UHADD16"); }
-ARM_INST_PTR INTERPRETER_TRANSLATE(uhadd8)(unsigned int inst, int index){DEBUG_LOG(ARM11, "in func %s\n", __FUNCTION__);CITRA_IGNORE_EXIT(-1); return nullptr;}
+ARM_INST_PTR INTERPRETER_TRANSLATE(uhadd8)(unsigned int inst, int index)    { UNIMPLEMENTED_INSTRUCTION("UHADD8"); }
-ARM_INST_PTR INTERPRETER_TRANSLATE(uhaddsubx)(unsigned int inst, int index){DEBUG_LOG(ARM11, "in func %s\n", __FUNCTION__);CITRA_IGNORE_EXIT(-1); return nullptr;}
+ARM_INST_PTR INTERPRETER_TRANSLATE(uhaddsubx)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("UHADDSUBX"); }
-ARM_INST_PTR INTERPRETER_TRANSLATE(uhsub16)(unsigned int inst, int index){DEBUG_LOG(ARM11, "in func %s\n", __FUNCTION__);CITRA_IGNORE_EXIT(-1); return nullptr;}
+ARM_INST_PTR INTERPRETER_TRANSLATE(uhsub16)(unsigned int inst, int index)   { UNIMPLEMENTED_INSTRUCTION("UHSUB16"); }
-ARM_INST_PTR INTERPRETER_TRANSLATE(uhsub8)(unsigned int inst, int index){DEBUG_LOG(ARM11, "in func %s\n", __FUNCTION__);CITRA_IGNORE_EXIT(-1); return nullptr;}
+ARM_INST_PTR INTERPRETER_TRANSLATE(uhsub8)(unsigned int inst, int index)    { UNIMPLEMENTED_INSTRUCTION("UHSUB8"); }
-ARM_INST_PTR INTERPRETER_TRANSLATE(uhsubaddx)(unsigned int inst, int index){DEBUG_LOG(ARM11, "in func %s\n", __FUNCTION__);CITRA_IGNORE_EXIT(-1); return nullptr;}
+ARM_INST_PTR INTERPRETER_TRANSLATE(uhsubaddx)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("UHSUBADDX"); }
-ARM_INST_PTR INTERPRETER_TRANSLATE(umaal)(unsigned int inst, int index){DEBUG_LOG(ARM11, "in func %s\n", __FUNCTION__);CITRA_IGNORE_EXIT(-1); return nullptr;}
+ARM_INST_PTR INTERPRETER_TRANSLATE(umaal)(unsigned int inst, int index)     { UNIMPLEMENTED_INSTRUCTION("UMAAL"); }
 ARM_INST_PTR INTERPRETER_TRANSLATE(umlal)(unsigned int inst, int index)
 {
        arm_inst *inst_base = (arm_inst *)AllocBuffer(sizeof(arm_inst) + sizeof(umlal_inst));
@@ -3113,21 +3113,21 @@ ARM_INST_PTR INTERPRETER_TRANSLATE(blx_1_thumb)(unsigned int tinst, int index)
        return inst_base;
 }
-ARM_INST_PTR INTERPRETER_TRANSLATE(uqadd16)(unsigned int inst, int index){DEBUG_LOG(ARM11, "in func %s\n", __FUNCTION__);CITRA_IGNORE_EXIT(-1); return nullptr;}
+ARM_INST_PTR INTERPRETER_TRANSLATE(uqadd16)(unsigned int inst, int index)   { UNIMPLEMENTED_INSTRUCTION("UQADD16"); }
-ARM_INST_PTR INTERPRETER_TRANSLATE(uqadd8)(unsigned int inst, int index){DEBUG_LOG(ARM11, "in func %s\n", __FUNCTION__);CITRA_IGNORE_EXIT(-1); return nullptr;}
+ARM_INST_PTR INTERPRETER_TRANSLATE(uqadd8)(unsigned int inst, int index)    { UNIMPLEMENTED_INSTRUCTION("UQADD8"); }
-ARM_INST_PTR INTERPRETER_TRANSLATE(uqaddsubx)(unsigned int inst, int index){DEBUG_LOG(ARM11, "in func %s\n", __FUNCTION__);CITRA_IGNORE_EXIT(-1); return nullptr;}
+ARM_INST_PTR INTERPRETER_TRANSLATE(uqaddsubx)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("UQADDSUBX"); }
-ARM_INST_PTR INTERPRETER_TRANSLATE(uqsub16)(unsigned int inst, int index){DEBUG_LOG(ARM11, "in func %s\n", __FUNCTION__);CITRA_IGNORE_EXIT(-1); return nullptr;}
+ARM_INST_PTR INTERPRETER_TRANSLATE(uqsub16)(unsigned int inst, int index)   { UNIMPLEMENTED_INSTRUCTION("UQSUB16"); }
-ARM_INST_PTR INTERPRETER_TRANSLATE(uqsub8)(unsigned int inst, int index){DEBUG_LOG(ARM11, "in func %s\n", __FUNCTION__);CITRA_IGNORE_EXIT(-1); return nullptr;}
+ARM_INST_PTR INTERPRETER_TRANSLATE(uqsub8)(unsigned int inst, int index)    { UNIMPLEMENTED_INSTRUCTION("UQSUB8"); }
-ARM_INST_PTR INTERPRETER_TRANSLATE(uqsubaddx)(unsigned int inst, int index){DEBUG_LOG(ARM11, "in func %s\n", __FUNCTION__);CITRA_IGNORE_EXIT(-1); return nullptr;}
+ARM_INST_PTR INTERPRETER_TRANSLATE(uqsubaddx)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("UQSUBADDX"); }
-ARM_INST_PTR INTERPRETER_TRANSLATE(usad8)(unsigned int inst, int index){DEBUG_LOG(ARM11, "in func %s\n", __FUNCTION__);CITRA_IGNORE_EXIT(-1); return nullptr;}
+ARM_INST_PTR INTERPRETER_TRANSLATE(usad8)(unsigned int inst, int index)     { UNIMPLEMENTED_INSTRUCTION("USAD8"); }
-ARM_INST_PTR INTERPRETER_TRANSLATE(usada8)(unsigned int inst, int index){DEBUG_LOG(ARM11, "in func %s\n", __FUNCTION__);CITRA_IGNORE_EXIT(-1); return nullptr;}
+ARM_INST_PTR INTERPRETER_TRANSLATE(usada8)(unsigned int inst, int index)    { UNIMPLEMENTED_INSTRUCTION("USADA8"); }
-ARM_INST_PTR INTERPRETER_TRANSLATE(usat)(unsigned int inst, int index){DEBUG_LOG(ARM11, "in func %s\n", __FUNCTION__);CITRA_IGNORE_EXIT(-1); return nullptr;}
+ARM_INST_PTR INTERPRETER_TRANSLATE(usat)(unsigned int inst, int index)      { UNIMPLEMENTED_INSTRUCTION("USAT"); }
-ARM_INST_PTR INTERPRETER_TRANSLATE(usat16)(unsigned int inst, int index){DEBUG_LOG(ARM11, "in func %s\n", __FUNCTION__);CITRA_IGNORE_EXIT(-1); return nullptr;}
+ARM_INST_PTR INTERPRETER_TRANSLATE(usat16)(unsigned int inst, int index)    { UNIMPLEMENTED_INSTRUCTION("USAT16"); }
-ARM_INST_PTR INTERPRETER_TRANSLATE(usub16)(unsigned int inst, int index){DEBUG_LOG(ARM11, "in func %s\n", __FUNCTION__);CITRA_IGNORE_EXIT(-1); return nullptr;}
+ARM_INST_PTR INTERPRETER_TRANSLATE(usub16)(unsigned int inst, int index)    { UNIMPLEMENTED_INSTRUCTION("USUB16"); }
-ARM_INST_PTR INTERPRETER_TRANSLATE(usub8)(unsigned int inst, int index){DEBUG_LOG(ARM11, "in func %s\n", __FUNCTION__);CITRA_IGNORE_EXIT(-1); return nullptr;}
+ARM_INST_PTR INTERPRETER_TRANSLATE(usub8)(unsigned int inst, int index)     { UNIMPLEMENTED_INSTRUCTION("USUB8"); }
-ARM_INST_PTR INTERPRETER_TRANSLATE(usubaddx)(unsigned int inst, int index){DEBUG_LOG(ARM11, "in func %s\n", __FUNCTION__);CITRA_IGNORE_EXIT(-1); return nullptr;}
+ARM_INST_PTR INTERPRETER_TRANSLATE(usubaddx)(unsigned int inst, int index)  { UNIMPLEMENTED_INSTRUCTION("USUBADDX"); }
-ARM_INST_PTR INTERPRETER_TRANSLATE(uxtab16)(unsigned int inst, int index){DEBUG_LOG(ARM11, "in func %s\n", __FUNCTION__);CITRA_IGNORE_EXIT(-1); return nullptr;}
+ARM_INST_PTR INTERPRETER_TRANSLATE(uxtab16)(unsigned int inst, int index)   { UNIMPLEMENTED_INSTRUCTION("UXTAB16"); }
-ARM_INST_PTR INTERPRETER_TRANSLATE(uxtb16)(unsigned int inst, int index){DEBUG_LOG(ARM11, "in func %s\n", __FUNCTION__);CITRA_IGNORE_EXIT(-1); return nullptr;}
+ARM_INST_PTR INTERPRETER_TRANSLATE(uxtb16)(unsigned int inst, int index)    { UNIMPLEMENTED_INSTRUCTION("UXTB16"); }
@@ -3309,9 +3309,8 @@ const transop_fp_t arm_instruction_trans[] = {
        INTERPRETER_TRANSLATE(blx_1_thumb)
 };
-typedef map<unsigned int, int> bb_map;
+typedef std::unordered_map<u32, int> bb_map;
-bb_map CreamCache[65536];
+bb_map CreamCache;
-bb_map ProfileCache[65536];
 //#define USE_DUMMY_CACHE
@@ -3319,14 +3318,12 @@ bb_map ProfileCache[65536];
 unsigned int DummyCache[0x100000];
 #endif
-#define HASH(x) ((x + (x << 3) + (x >> 6)) % 65536)
 void insert_bb(unsigned int addr, int start)
 {
 #ifdef USE_DUMMY_CACHE
        DummyCache[addr] = start;
 #else
-//      CreamCache[addr] = start;
+        CreamCache[addr] = start;
-        CreamCache[HASH(addr)][addr] = start;
 #endif
 }
@@ -3341,8 +3338,8 @@ int find_bb(unsigned int addr, int &start)
        } else
                ret = -1;
 #else
-        bb_map::const_iterator it = CreamCache[HASH(addr)].find(addr);
+        bb_map::const_iterator it = CreamCache.find(addr);
-        if (it != CreamCache[HASH(addr)].end()) {
+        if (it != CreamCache.end()) {
                start = static_cast<int>(it->second);
                ret = 0;
 #if HYBRID_MODE
@@ -3396,7 +3393,7 @@ static tdstate decode_thumb_instr(arm_processor *cpu, uint32_t inst, addr_t addr
                        }
                        else{
                        /* something wrong */
-                                DEBUG_LOG(ARM11, "In %s, thumb decoder error\n", __FUNCTION__);
+                                LOG_ERROR(Core_ARM11, "thumb decoder error");
                        }
                        break;
                case 28:
@@ -3473,30 +3470,15 @@ void flush_bb(uint32_t addr)
        uint32_t start;
        addr  &= 0xfffff000;
-        for (int i = 0; i < 65536; i ++) {
+        for (it = CreamCache.begin(); it != CreamCache.end(); ) {
-                for (it = CreamCache[i].begin(); it != CreamCache[i].end(); ) {
+                start = static_cast<uint32_t>(it->first);
-                        start = static_cast<uint32_t>(it->first);
+                //start = (start >> 12) << 12;
-                        //start = (start >> 12) << 12;
+                start &= 0xfffff000;
-                        start &= 0xfffff000;
+                if (start == addr) {
-                        if (start == addr) {
+                        //DEBUG_LOG(ARM11, "[ERASE][0x%08x]\n", static_cast<int>(it->first));
-                                //DEBUG_LOG(ARM11, "[ERASE][0x%08x]\n", static_cast<int>(it->first));
+                        CreamCache.erase(it++);
-                                CreamCache[i].erase(it ++);
+                } else
-                        } else
+                        ++it;
-                                ++it;
-                }
-        }
-        for (int i = 0; i < 65536; i ++) {
-                for (it = ProfileCache[i].begin(); it != ProfileCache[i].end(); ) {
-                        start = static_cast<uint32_t>(it->first);
-                        //start = (start >> 12) << 12;
-                        start &= 0xfffff000;
-                        if (start == addr) {
-                                //DEBUG_LOG(ARM11, "[ERASE][0x%08x]\n", static_cast<int>(it->first));
-                                ProfileCache[i].erase(it ++);
-                        } else
-                                ++it;
-                }
        }
        //DEBUG_LOG(ARM11, "flush bb @ %x\n", addr);
@@ -3619,7 +3601,7 @@ int InterpreterTranslate(arm_processor *cpu, int &bb_start, addr_t addr)
                       bank->bank_read(32, phys_addr, &inst);
               }
               else {
-                       DEBUG_LOG(ARM11, "SKYEYE: Read physical addr 0x%x error!!\n", phys_addr);
+                       LOG_ERROR(Core_ARM11, "SKYEYE: Read physical addr 0x%x error!!\n", phys_addr);
                       return FETCH_FAILURE;
               }
 #else
@@ -3649,8 +3631,8 @@ int InterpreterTranslate(arm_processor *cpu, int &bb_start, addr_t addr)
                ret = decode_arm_instr(inst, &idx);
                if (ret == DECODE_FAILURE) {
-                        DEBUG_LOG(ARM11, "[info] : Decode failure.\tPC : [0x%x]\tInstruction : [%x]\n", phys_addr, inst);
+                        LOG_ERROR(Core_ARM11, "Decode failure.\tPC : [0x%x]\tInstruction : [%x]", phys_addr, inst);
-                        DEBUG_LOG(ARM11, "cpsr=0x%x, cpu->TFlag=%d, r15=0x%x\n", cpu->Cpsr, cpu->TFlag, cpu->Reg[15]);
+                        LOG_ERROR(Core_ARM11, "cpsr=0x%x, cpu->TFlag=%d, r15=0x%x", cpu->Cpsr, cpu->TFlag, cpu->Reg[15]);
                        CITRA_IGNORE_EXIT(-1);
                }
 //              DEBUG_LOG(ARM11, "PC : [0x%x] INST : %s\n", cpu->translate_pc, arm_instruction[idx].name);
@@ -3694,7 +3676,7 @@ void InterpreterInitInstLength(unsigned long long int *ptr, size_t size)
                }
        }
        for (int i = 0; i < array_size - 4; i ++)
-                DEBUG_LOG(ARM11, "[%d]:%d\n", i, InstLength[i]);
+                LOG_DEBUG(Core_ARM11, "[%d]:%d", i, InstLength[i]);
 }
 int clz(unsigned int x)
@@ -3718,7 +3700,7 @@ static bool InAPrivilegedMode(arm_core_t *core)
 }
 /* r15 = r15 + 8 */
-void InterpreterMainLoop(ARMul_State* state)
+unsigned InterpreterMainLoop(ARMul_State* state)
 {
        #define CRn                             inst_cream->crn
        #define OPCODE_2                        inst_cream->opcode_2
@@ -3741,22 +3723,28 @@ void InterpreterMainLoop(ARMul_State* state)
                                                //if (debug_function(core))                                          \
                                                        if (core->check_int_flag)                                  \
                                                                goto END
-                                                //DEBUG_LOG(ARM11, "icounter is %llx line is %d pc is %x\n", cpu->icounter, __LINE__, cpu->Reg[15])
+                                                //LOG_TRACE(Core_ARM11, "icounter is %llx pc is %x\n", cpu->icounter, cpu->Reg[15])
        #else
        #define INC_ICOUNTER                    ;                                                   
        #endif
        #define FETCH_INST                      if (inst_base->br != NON_BRANCH)                                   \
-                                                        goto PROFILING;                                             \
+                                                        goto DISPATCH;                                             \
                                                inst_base = (arm_inst *)&inst_buf[ptr]                             
 #define INC_PC(l)                       ptr += sizeof(arm_inst) + l
 // GCC and Clang have a C++ extension to support a lookup table of labels. Otherwise, fallback to a
 // clunky switch statement.
 #if defined __GNUC__ || defined __clang__
-#define GOTO_NEXT_INST                  goto *InstLabel[inst_base->idx]
+#define GOTO_NEXT_INST \
+    if (num_instrs >= cpu->NumInstrsToExecute) goto END; \
+    num_instrs++; \
+    goto *InstLabel[inst_base->idx]
 #else
-#define GOTO_NEXT_INST switch(inst_base->idx) { \
+#define GOTO_NEXT_INST \
+    if (num_instrs >= cpu->NumInstrsToExecute) goto END; \
+    num_instrs++; \
+    switch(inst_base->idx) { \
    case 0: goto VMLA_INST; \
    case 1: goto VMLS_INST; \
    case 2: goto VNMLA_INST; \
@@ -4028,20 +4016,15 @@ void InterpreterMainLoop(ARMul_State* state)
        unsigned int addr;
        unsigned int phys_addr;
        unsigned int last_pc = 0;
+        unsigned int num_instrs = 0;
        fault_t fault;
        static unsigned int last_physical_base = 0, last_logical_base = 0;
        int ptr;
+        bool single_step = (cpu->NumInstrsToExecute == 1);
        LOAD_NZCVT;
        DISPATCH:
        {
-        if (cpu->NumInstrsToExecute == 0)
-            return;
-        cpu->NumInstrsToExecute--;
-        //NOTICE_LOG(ARM11, "instr!");
                if (!cpu->NirqSig) {
                        if (!(cpu->Cpsr & 0x80)) {
                                goto END;
@@ -4179,10 +4162,6 @@ void InterpreterMainLoop(ARMul_State* state)
                inst_base = (arm_inst *)&inst_buf[ptr];
                GOTO_NEXT_INST;
        }
-        PROFILING:
-        {
-                goto DISPATCH;
-        }
        ADC_INST:
        {
                INC_ICOUNTER;
@@ -4207,7 +4186,7 @@ void InterpreterMainLoop(ARMul_State* state)
                        }
                        if (inst_cream->Rd == 15) {
                                INC_PC(sizeof(adc_inst));
-                                goto PROFILING;
+                                goto DISPATCH;
                        }
                }
                cpu->Reg[15] += GET_INST_SIZE(cpu);
@@ -4241,7 +4220,7 @@ void InterpreterMainLoop(ARMul_State* state)
                        }
                        if (inst_cream->Rd == 15) {
                                INC_PC(sizeof(add_inst));
-                                goto PROFILING;
+                                goto DISPATCH;
                        }
                }
                cpu->Reg[15] += GET_INST_SIZE(cpu);
@@ -4272,7 +4251,7 @@ void InterpreterMainLoop(ARMul_State* state)
                        }
                        if (inst_cream->Rd == 15) {
                                INC_PC(sizeof(and_inst));
-                                goto PROFILING;
+                                goto DISPATCH;
                        }
                }
                cpu->Reg[15] += GET_INST_SIZE(cpu);
@@ -4290,11 +4269,11 @@ void InterpreterMainLoop(ARMul_State* state)
                        }
                        SET_PC;
                        INC_PC(sizeof(bbl_inst));
-                        goto PROFILING;
+                        goto DISPATCH;
                }
                cpu->Reg[15] += GET_INST_SIZE(cpu);
                INC_PC(sizeof(bbl_inst));
-                goto PROFILING;
+                goto DISPATCH;
        }
        BIC_INST:
        {
@@ -4322,7 +4301,7 @@ void InterpreterMainLoop(ARMul_State* state)
                        }
                        if (inst_cream->Rd == 15) {
                                INC_PC(sizeof(bic_inst));
-                                goto PROFILING;
+                                goto DISPATCH;
                        }
                }
                cpu->Reg[15] += GET_INST_SIZE(cpu);
@@ -4358,12 +4337,12 @@ void InterpreterMainLoop(ARMul_State* state)
                                //DEBUG_MSG;
                        }
                        INC_PC(sizeof(blx_inst));
-                        goto PROFILING;
+                        goto DISPATCH;
                }
                cpu->Reg[15] += GET_INST_SIZE(cpu);
 //              INC_PC(sizeof(bx_inst));
                INC_PC(sizeof(blx_inst));
-                goto PROFILING;
+                goto DISPATCH;
        }
        BX_INST:
        {
@@ -4371,17 +4350,17 @@ void InterpreterMainLoop(ARMul_State* state)
                bx_inst *inst_cream = (bx_inst *)inst_base->component;
                if ((inst_base->cond == 0xe) || CondPassed(cpu, inst_base->cond)) {
                        if (inst_cream->Rm == 15)
-                                DEBUG_LOG(ARM11, "In %s, BX at pc %x: use of Rm = R15 is discouraged\n", __FUNCTION__, cpu->Reg[15]);
+                                LOG_WARNING(Core_ARM11, "BX at pc %x: use of Rm = R15 is discouraged", cpu->Reg[15]);
                        cpu->TFlag = cpu->Reg[inst_cream->Rm] & 0x1;
                        cpu->Reg[15] = cpu->Reg[inst_cream->Rm] & 0xfffffffe;
 //                      cpu->TFlag = cpu->Reg[inst_cream->Rm] & 0x1;
                        INC_PC(sizeof(bx_inst));
-                        goto PROFILING;
+                        goto DISPATCH;
                }
                cpu->Reg[15] += GET_INST_SIZE(cpu);
 //              INC_PC(sizeof(bx_inst));
                INC_PC(sizeof(bx_inst));
-                goto PROFILING;
+                goto DISPATCH;
        }
        BXJ_INST:
        CDP_INST:
@@ -4393,12 +4372,13 @@ void InterpreterMainLoop(ARMul_State* state)
                        #define CP_ACCESS_ALLOW 0
                        if(CP_ACCESS_ALLOW){
                                /* undefined instruction here */
-                                return;
+                                cpu->NumInstrsToExecute = 0;
+                                return num_instrs;
                        }
-                        ERROR_LOG(ARM11, "CDP insn inst=0x%x, pc=0x%x\n", inst_cream->inst, cpu->Reg[15]);
+                        LOG_ERROR(Core_ARM11, "CDP insn inst=0x%x, pc=0x%x\n", inst_cream->inst, cpu->Reg[15]);
                        unsigned cpab = (cpu->CDP[inst_cream->cp_num]) (cpu, ARMul_FIRST, inst_cream->inst);
                        if(cpab != ARMul_DONE){
-                                ERROR_LOG(ARM11, "CDP insn wrong, inst=0x%x, cp_num=0x%x\n", inst_cream->inst, inst_cream->cp_num);
+                                LOG_ERROR(Core_ARM11, "CDP insn wrong, inst=0x%x, cp_num=0x%x\n", inst_cream->inst, inst_cream->cp_num);
                                //CITRA_IGNORE_EXIT(-1);
                        }
                }
@@ -4522,7 +4502,7 @@ void InterpreterMainLoop(ARMul_State* state)
 //                      RD = RM;
                        if ((inst_cream->Rd == 15)) {
                                INC_PC(sizeof(mov_inst));
-                                goto PROFILING;
+                                goto DISPATCH;
                        }
                }
 //              DEBUG_LOG(ARM11, "cpy inst %x\n", cpu->Reg[15]);
@@ -4558,7 +4538,7 @@ void InterpreterMainLoop(ARMul_State* state)
                        }
                        if (inst_cream->Rd == 15) {
                                INC_PC(sizeof(eor_inst));
-                                goto PROFILING;
+                                goto DISPATCH;
                        }
                }
                cpu->Reg[15] += GET_INST_SIZE(cpu);
@@ -4717,7 +4697,7 @@ void InterpreterMainLoop(ARMul_State* state)
                        }
                        if (BIT(inst, 15)) {
                                INC_PC(sizeof(ldst_inst));
-                                goto PROFILING;
+                                goto DISPATCH;
                        }
                }
                cpu->Reg[15] += GET_INST_SIZE(cpu);
@@ -4764,7 +4744,7 @@ void InterpreterMainLoop(ARMul_State* state)
                                cpu->TFlag = value & 0x1;
                                cpu->Reg[15] &= 0xFFFFFFFE;
                                INC_PC(sizeof(ldst_inst));
-                                goto PROFILING;
+                                goto DISPATCH;
                        }
                //}
                cpu->Reg[15] += GET_INST_SIZE(cpu);
@@ -4794,7 +4774,7 @@ void InterpreterMainLoop(ARMul_State* state)
                                cpu->TFlag = value & 0x1;
                                cpu->Reg[15] &= 0xFFFFFFFE;
                                INC_PC(sizeof(ldst_inst));
-                                goto PROFILING;
+                                goto DISPATCH;
                        }
                }
                cpu->Reg[15] += GET_INST_SIZE(cpu);
@@ -4825,7 +4805,7 @@ void InterpreterMainLoop(ARMul_State* state)
                                                & 0xffff;
                        RD = RN + operand2;
                        if (inst_cream->Rn == 15 || inst_cream->Rm == 15) {
-                                DEBUG_LOG(ARM11, "in line %d\n", __LINE__);
+                                LOG_ERROR(Core_ARM11, "invalid operands for UXTAH");
                                CITRA_IGNORE_EXIT(-1);
                        }
                }
@@ -4848,7 +4828,7 @@ void InterpreterMainLoop(ARMul_State* state)
                        cpu->Reg[BITS(inst_cream->inst, 12, 15)] = value;
                        if (BITS(inst_cream->inst, 12, 15) == 15) {
                                INC_PC(sizeof(ldst_inst));
-                                goto PROFILING;
+                                goto DISPATCH;
                        }
                }
                cpu->Reg[15] += GET_INST_SIZE(cpu);
@@ -4869,7 +4849,7 @@ void InterpreterMainLoop(ARMul_State* state)
                        cpu->Reg[BITS(inst_cream->inst, 12, 15)] = value;
                        if (BITS(inst_cream->inst, 12, 15) == 15) {
                                INC_PC(sizeof(ldst_inst));
-                                goto PROFILING;
+                                goto DISPATCH;
                        }
                }
                cpu->Reg[15] += GET_INST_SIZE(cpu);
@@ -4888,7 +4868,7 @@ void InterpreterMainLoop(ARMul_State* state)
                        uint32_t rear_phys_addr;
                         fault = check_address_validity(cpu, addr + 4, &rear_phys_addr, 1);
                        if(fault){
-                                ERROR_LOG(ARM11, "mmu fault , should rollback the above get_addr\n");
+                                LOG_ERROR(Core_ARM11, "mmu fault , should rollback the above get_addr\n");
                                CITRA_IGNORE_EXIT(-1);
                                goto MMU_EXCEPTION;
                        }
@@ -4926,7 +4906,7 @@ void InterpreterMainLoop(ARMul_State* state)
                        cpu->Reg[BITS(inst_cream->inst, 12, 15)] = value;
                        if (BITS(inst_cream->inst, 12, 15) == 15) {
                                INC_PC(sizeof(ldst_inst));
-                                goto PROFILING;
+                                goto DISPATCH;
                        }
                }
                cpu->Reg[15] += GET_INST_SIZE(cpu);
@@ -4953,7 +4933,7 @@ void InterpreterMainLoop(ARMul_State* state)
                        cpu->Reg[BITS(inst_cream->inst, 12, 15)] = value;
                        if (BITS(inst_cream->inst, 12, 15) == 15) {
                                INC_PC(sizeof(ldst_inst));
-                                goto PROFILING;
+                                goto DISPATCH;
                        }
                }
                cpu->Reg[15] += GET_INST_SIZE(cpu);
@@ -4980,7 +4960,7 @@ void InterpreterMainLoop(ARMul_State* state)
                        cpu->Reg[BITS(inst_cream->inst, 12, 15)] = value;
                        if (BITS(inst_cream->inst, 12, 15) == 15) {
                                INC_PC(sizeof(ldst_inst));
-                                goto PROFILING;
+                                goto DISPATCH;
                        }
                }
                cpu->Reg[15] += GET_INST_SIZE(cpu);
@@ -5006,7 +4986,7 @@ void InterpreterMainLoop(ARMul_State* state)
                        cpu->Reg[BITS(inst_cream->inst, 12, 15)] = value;
                        if (BITS(inst_cream->inst, 12, 15) == 15) {
                                INC_PC(sizeof(ldst_inst));
-                                goto PROFILING;
+                                goto DISPATCH;
                        }
                }
                cpu->Reg[15] += GET_INST_SIZE(cpu);
@@ -5031,7 +5011,7 @@ void InterpreterMainLoop(ARMul_State* state)
                        cpu->Reg[BITS(inst_cream->inst, 12, 15)] = value;
                        if (BITS(inst_cream->inst, 12, 15) == 15) {
                                INC_PC(sizeof(ldst_inst));
-                                goto PROFILING;
+                                goto DISPATCH;
                        }
                }
                cpu->Reg[15] += GET_INST_SIZE(cpu);
@@ -5058,7 +5038,7 @@ void InterpreterMainLoop(ARMul_State* state)
                        if (BITS(inst_cream->inst, 12, 15) == 15) {
                                INC_PC(sizeof(ldst_inst));
-                                goto PROFILING;
+                                goto DISPATCH;
                        }
                }
                cpu->Reg[15] += GET_INST_SIZE(cpu);
@@ -5111,7 +5091,7 @@ void InterpreterMainLoop(ARMul_State* state)
                                                        switch(OPCODE_2){
                                                        case 0: /* invalidate all */
                                                                //invalidate_all_tlb(state);
-                                                                DEBUG_LOG(ARM11, "{TLB} [INSN] invalidate all\n");
+                                                                LOG_DEBUG(Core_ARM11, "{TLB} [INSN] invalidate all");
                                                                //remove_tlb(INSN_TLB);
                                                                //erase_all(core, INSN_TLB);
                                                                break;
@@ -5137,7 +5117,7 @@ void InterpreterMainLoop(ARMul_State* state)
                                                                //invalidate_all_tlb(state);
                                                                //remove_tlb(DATA_TLB);
                                                                //erase_all(core, DATA_TLB);
-                                                                DEBUG_LOG(ARM11, "{TLB} [DATA] invalidate all\n");
+                                                                LOG_DEBUG(Core_ARM11, "{TLB} [DATA] invalidate all");
                                                                break;
                                                        case 1: /* invalidate by MVA */
                                                                //invalidate_by_mva(state, value);
@@ -5169,13 +5149,13 @@ void InterpreterMainLoop(ARMul_State* state)
                                                                //invalidate_by_mva(state, value);
                                                                //erase_by_mva(core, RD, DATA_TLB);
                                                                //erase_by_mva(core, RD, INSN_TLB);
-                                                                DEBUG_LOG(ARM11, "{TLB} [UNIFILED] invalidate by mva\n");
+                                                                LOG_DEBUG(Core_ARM11, "{TLB} [UNIFILED] invalidate by mva");
                                                                break;
                                                        case 2: /* invalidate by asid */
                                                                //invalidate_by_asid(state, value);
                                                                //erase_by_asid(core, RD, DATA_TLB);
                                                                //erase_by_asid(core, RD, INSN_TLB);
-                                                                DEBUG_LOG(ARM11, "{TLB} [UNIFILED] invalidate by asid\n");
+                                                                LOG_DEBUG(Core_ARM11, "{TLB} [UNIFILED] invalidate by asid");
                                                                break;
                                                        default:
                                                                break;
@@ -5197,7 +5177,7 @@ void InterpreterMainLoop(ARMul_State* state)
                                                }
                                        } else {
-                                                DEBUG_LOG(ARM11, "mcr is not implementated. CRn is %d, CRm is %d, OPCODE_2 is %d\n", CRn, CRm, OPCODE_2);
+                                                LOG_ERROR(Core_ARM11, "mcr CRn=%d, CRm=%d OP2=%d is not implemented", CRn, CRm, OPCODE_2);
                                        }
                                }
                        }
@@ -5217,7 +5197,7 @@ void InterpreterMainLoop(ARMul_State* state)
                        uint64_t rs = RS;
                        uint64_t rn = RN;
                        if (inst_cream->Rm == 15 || inst_cream->Rs == 15 || inst_cream->Rn == 15) {
-                                DEBUG_LOG(ARM11, "in __line__\n", __LINE__);
+                                LOG_ERROR(Core_ARM11, "invalid operands for MLA");
                                CITRA_IGNORE_EXIT(-1);
                        }
 //                      RD = dst = RM * RS + RN;
@@ -5228,7 +5208,7 @@ void InterpreterMainLoop(ARMul_State* state)
                        }
                        if (inst_cream->Rd == 15) {
                                INC_PC(sizeof(mla_inst));
-                                goto PROFILING;
+                                goto DISPATCH;
                        }
                }
                cpu->Reg[15] += GET_INST_SIZE(cpu);
@@ -5260,7 +5240,7 @@ void InterpreterMainLoop(ARMul_State* state)
                        }
                        if (inst_cream->Rd == 15) {
                                INC_PC(sizeof(mov_inst));
-                                goto PROFILING;
+                                goto DISPATCH;
                        }
 //                              return;
                }
@@ -5331,7 +5311,7 @@ void InterpreterMainLoop(ARMul_State* state)
                                                }
                                        }
                                        else {
-                                                DEBUG_LOG(ARM11, "mrc is not implementated. CRn is %d, CRm is %d, OPCODE_2 is %d\n", CRn, CRm, OPCODE_2);
+                                            LOG_ERROR(Core_ARM11, "mrc CRn=%d, CRm=%d, OP2=%d is not implemented", CRn, CRm, OPCODE_2);
                                        }
                                }
                                //DEBUG_LOG(ARM11, "mrc is not implementated. CRn is %d, CRm is %d, OPCODE_2 is %d\n", CRn, CRm, OPCODE_2);
@@ -5422,7 +5402,7 @@ void InterpreterMainLoop(ARMul_State* state)
                        }
                        if (inst_cream->Rd == 15) {
                                INC_PC(sizeof(mul_inst));
-                                goto PROFILING;
+                                goto DISPATCH;
                        }
                }
                cpu->Reg[15] += GET_INST_SIZE(cpu);
@@ -5451,7 +5431,7 @@ void InterpreterMainLoop(ARMul_State* state)
                        }
                        if (inst_cream->Rd == 15) {
                                INC_PC(sizeof(mvn_inst));
-                                goto PROFILING;
+                                goto DISPATCH;
                        }
                }
                cpu->Reg[15] += GET_INST_SIZE(cpu);
@@ -5483,7 +5463,7 @@ void InterpreterMainLoop(ARMul_State* state)
                        }
                        if (inst_cream->Rd == 15) {
                                INC_PC(sizeof(orr_inst));
-                                goto PROFILING;
+                                goto DISPATCH;
                        }
                }
                cpu->Reg[15] += GET_INST_SIZE(cpu);
@@ -5522,7 +5502,7 @@ void InterpreterMainLoop(ARMul_State* state)
                                (((RM >> 16) & 0xff) << 8) |
                                ((RM >> 24) & 0xff);
                        if (inst_cream->Rm == 15) {
-                                DEBUG_LOG(ARM11, "in line %d\n", __LINE__);
+                                LOG_ERROR(Core_ARM11, "invalid operand for REV");
                                CITRA_IGNORE_EXIT(-1);
                        }
                }
@@ -5575,7 +5555,7 @@ void InterpreterMainLoop(ARMul_State* state)
                        }
                        if (inst_cream->Rd == 15) {
                                INC_PC(sizeof(rsb_inst));
-                                goto PROFILING;
+                                goto DISPATCH;
                        }
                }
                cpu->Reg[15] += GET_INST_SIZE(cpu);
@@ -5612,7 +5592,7 @@ void InterpreterMainLoop(ARMul_State* state)
                        }
                        if (inst_cream->Rd == 15) {
                                INC_PC(sizeof(rsc_inst));
-                                goto PROFILING;
+                                goto DISPATCH;
                        }
                }
                cpu->Reg[15] += GET_INST_SIZE(cpu);
@@ -5653,7 +5633,7 @@ void InterpreterMainLoop(ARMul_State* state)
                        }
                        if (inst_cream->Rd == 15) {
                                INC_PC(sizeof(sbc_inst));
-                                goto PROFILING;
+                                goto DISPATCH;
                        }
                }
                cpu->Reg[15] += GET_INST_SIZE(cpu);
@@ -5975,7 +5955,7 @@ void InterpreterMainLoop(ARMul_State* state)
                sxtb_inst *inst_cream = (sxtb_inst *)inst_base->component;
                if ((inst_base->cond == 0xe) || CondPassed(cpu, inst_base->cond)) {
                        if (inst_cream->Rm == 15) {
-                                DEBUG_LOG(ARM11, "line is %d\n", __LINE__);
+                                LOG_ERROR(Core_ARM11, "invalid operand for SXTB");
                                CITRA_IGNORE_EXIT(-1);
                        }
                        unsigned int operand2 = ROTATE_RIGHT_32(RM, 8 * inst_cream->rotate);
@@ -6066,7 +6046,7 @@ void InterpreterMainLoop(ARMul_State* state)
                }
                cpu->Reg[15] += GET_INST_SIZE(cpu);
                //if (BITS(inst_cream->inst, 12, 15) == 15)
-                //      goto PROFILING;
+                //      goto DISPATCH;
                INC_PC(sizeof(ldst_inst));
                FETCH_INST;
                GOTO_NEXT_INST;
@@ -6081,7 +6061,7 @@ void InterpreterMainLoop(ARMul_State* state)
                        uint32_t rear_phys_addr;
                        fault = check_address_validity(cpu, addr + 4, &rear_phys_addr, 0);
                        if (fault){
-                                ERROR_LOG(ARM11, "mmu fault , should rollback the above get_addr\n");
+                                LOG_ERROR(Core_ARM11, "mmu fault , should rollback the above get_addr\n");
                                CITRA_IGNORE_EXIT(-1);
                                goto MMU_EXCEPTION;
                        }
@@ -6175,7 +6155,7 @@ void InterpreterMainLoop(ARMul_State* state)
                }
                cpu->Reg[15] += GET_INST_SIZE(cpu);
                //if (BITS(inst_cream->inst, 12, 15) == 15)
-                //      goto PROFILING;
+                //      goto DISPATCH;
                INC_PC(sizeof(ldst_inst));
                FETCH_INST;
                GOTO_NEXT_INST;
@@ -6225,7 +6205,7 @@ void InterpreterMainLoop(ARMul_State* state)
                        }
                        if (inst_cream->Rd == 15) {
                                INC_PC(sizeof(sub_inst));
-                                goto PROFILING;
+                                goto DISPATCH;
                        }
                }
                cpu->Reg[15] += GET_INST_SIZE(cpu);
@@ -6449,7 +6429,7 @@ void InterpreterMainLoop(ARMul_State* state)
                cpu->Reg[15] = cpu->Reg[15] + 4 + inst_cream->imm;
                //DEBUG_LOG(ARM11, " BL_1_THUMB: imm=0x%x, r14=0x%x, r15=0x%x\n", inst_cream->imm, cpu->Reg[14], cpu->Reg[15]);
                INC_PC(sizeof(b_2_thumb));
-                goto PROFILING;
+                goto DISPATCH;
        }
        B_COND_THUMB:
        {
@@ -6461,7 +6441,7 @@ void InterpreterMainLoop(ARMul_State* state)
                        cpu->Reg[15] += 2;
                //DEBUG_LOG(ARM11, " B_COND_THUMB: imm=0x%x, r15=0x%x\n", inst_cream->imm, cpu->Reg[15]);
                INC_PC(sizeof(b_cond_thumb));
-                goto PROFILING;
+                goto DISPATCH;
        }
        BL_1_THUMB:
        {
@@ -6487,7 +6467,7 @@ void InterpreterMainLoop(ARMul_State* state)
                cpu->Reg[14] = tmp;
                //DEBUG_LOG(ARM11, " BL_2_THUMB: imm=0x%x, r14=0x%x, r15=0x%x\n", inst_cream->imm, cpu->Reg[14], cpu->Reg[15]);
                INC_PC(sizeof(bl_2_thumb));
-                goto PROFILING;
+                goto DISPATCH;
        }
        BLX_1_THUMB:
        {       
@@ -6503,7 +6483,7 @@ void InterpreterMainLoop(ARMul_State* state)
                cpu->TFlag = 0;
                //DEBUG_LOG(ARM11, "In BLX_1_THUMB, BLX(1),imm=0x%x,r14=0x%x, r15=0x%x, \n", inst_cream->imm, cpu->Reg[14], cpu->Reg[15]);
                INC_PC(sizeof(blx_1_thumb));
-                goto PROFILING;
+                goto DISPATCH;
        }
        UQADD16_INST:
@@ -6532,12 +6512,14 @@ void InterpreterMainLoop(ARMul_State* state)
                cpu->AbortAddr = addr;
                cpu->CP15[CP15(CP15_FAULT_STATUS)] = fault & 0xff;
                cpu->CP15[CP15(CP15_FAULT_ADDRESS)] = addr;
-                return;
+                cpu->NumInstrsToExecute = 0;
+                return num_instrs;
        }
        END:
        {
                SAVE_NZCVT;
-                return;
+                cpu->NumInstrsToExecute = 0;
+                return num_instrs;
        }
        INIT_INST_LENGTH:
        {
@@ -6557,7 +6539,8 @@ void InterpreterMainLoop(ARMul_State* state)
        DEBUG_LOG(ARM11, "%llx\n", InstLabel[1]);
        DEBUG_LOG(ARM11, "%lld\n", (char *)InstEndLabel[1] - (char *)InstLabel[1]);
 #endif
-        return;
+        cpu->NumInstrsToExecute = 0;
+        return num_instrs;
        }
 }
diff --git a/src/core/arm/dyncom/arm_dyncom_interpreter.h b/src/core/arm/dyncom/arm_dyncom_interpreter.h
index d73f8f65f..3a2462f55 100644
--- a/src/core/arm/dyncom/arm_dyncom_interpreter.h
+++ b/src/core/arm/dyncom/arm_dyncom_interpreter.h
@@ -1,7 +1,7 @@
 // Copyright 2014 Citra Emulator Project
 // Licensed under GPLv2
-// Refer to the license.txt file included.  
+// Refer to the license.txt file included.
 #pragma once
-void InterpreterMainLoop(ARMul_State* state);
+unsigned InterpreterMainLoop(ARMul_State* state);
diff --git a/src/core/arm/interpreter/arm_interpreter.cpp b/src/core/arm/interpreter/arm_interpreter.cpp
index ed4415082..e2aa5ce92 100644
--- a/src/core/arm/interpreter/arm_interpreter.cpp
+++ b/src/core/arm/interpreter/arm_interpreter.cpp
@@ -1,6 +1,6 @@
 // Copyright 2014 Citra Emulator Project
 // Licensed under GPLv2
-// Refer to the license.txt file included.  
+// Refer to the license.txt file included.
 #include "core/arm/interpreter/arm_interpreter.h"
@@ -24,7 +24,7 @@ ARM_Interpreter::ARM_Interpreter()  {
    state->lateabtSig = LOW;
    // Reset the core to initial state
-    ARMul_CoProInit(state); 
+    ARMul_CoProInit(state);
    ARMul_Reset(state);
    state->NextInstr = RESUME; // NOTE: This will be overwritten by LoadContext
    state->Emulate = 3;
diff --git a/src/core/arm/interpreter/arm_interpreter.h b/src/core/arm/interpreter/arm_interpreter.h
index ceb1be438..ed53d997c 100644
--- a/src/core/arm/interpreter/arm_interpreter.h
+++ b/src/core/arm/interpreter/arm_interpreter.h
@@ -1,6 +1,6 @@
 // Copyright 2014 Citra Emulator Project
 // Licensed under GPLv2
-// Refer to the license.txt file included.  
+// Refer to the license.txt file included.
 #pragma once
@@ -18,7 +18,7 @@ public:
    /**
     * Set the Program Counter to an address
-     * @param addr Address to set PC to
+     * @param pc Address to set PC to
     */
    void SetPC(u32 pc) override;
diff --git a/src/core/arm/interpreter/armemu.cpp b/src/core/arm/interpreter/armemu.cpp
index 73223874e..1a589e39c 100644
--- a/src/core/arm/interpreter/armemu.cpp
+++ b/src/core/arm/interpreter/armemu.cpp
@@ -949,7 +949,7 @@ ARMul_Emulate26 (ARMul_State * state)
                //printf("t decode %04lx -> %08lx\n", instr & 0xffff, armOp);
                if (armOp == 0xDEADC0DE) {
-                    DEBUG("Failed to decode thumb opcode %04X at %08X\n", instr, pc);
+                    LOG_ERROR(Core_ARM11, "Failed to decode thumb opcode %04X at %08X", instr, pc);
                }
                instr = armOp;
@@ -1166,7 +1166,7 @@ mainswitch:
                else if ((((int)BITS(21, 27)) == 0x3e) && ((int)BITS(4, 6) == 0x1)) {
                    //(ARMword)(instr<<(31-(n))) >> ((31-(n))+(m))
                    unsigned msb ,tmp_rn, tmp_rd, dst;
-                    msb = tmp_rd = tmp_rn = dst = 0;
+                    tmp_rd = tmp_rn = dst = 0;
                    Rd = BITS(12, 15);
                    Rn = BITS(0, 3);
                    lsb = BITS(7, 11);
@@ -1737,7 +1737,7 @@ mainswitch:
                        //chy 2006-02-15 if in user mode, can not set cpsr 0:23
                        //from p165 of ARMARM book
                        state->Cpsr = GETSPSR (state->Bank);
-                        //ARMul_CPSRAltered (state);
+                        ARMul_CPSRAltered (state);
 #else
                        rhs = DPRegRHS;
                        temp = LHS & rhs;
@@ -1877,7 +1877,7 @@ mainswitch:
                        /* TEQP reg */
 #ifdef MODE32
                        state->Cpsr = GETSPSR (state->Bank);
-                        //ARMul_CPSRAltered (state);
+                        ARMul_CPSRAltered (state);
 #else
                        rhs = DPRegRHS;
                        temp = LHS ^ rhs;
@@ -1993,7 +1993,7 @@ mainswitch:
                        /* CMPP reg.  */
 #ifdef MODE32
                        state->Cpsr = GETSPSR (state->Bank);
-                        //ARMul_CPSRAltered (state);
+                        ARMul_CPSRAltered (state);
 #else
                        rhs = DPRegRHS;
                        temp = LHS - rhs;
@@ -2112,7 +2112,7 @@ mainswitch:
                    if (DESTReg == 15) {
 #ifdef MODE32
                        state->Cpsr = GETSPSR (state->Bank);
-                        //ARMul_CPSRAltered (state);
+                        ARMul_CPSRAltered (state);
 #else
                        rhs = DPRegRHS;
                        temp = LHS + rhs;
@@ -2200,17 +2200,57 @@ mainswitch:
                        Handle_Store_Double (state, instr);
                        break;
                    }
+                    if (BITS(4, 11) == 0xF9) { //strexd
+                        u32 l = LHSReg;
+                        bool enter = false;
+                        if (state->currentexval == (u32)ARMul_ReadWord(state, state->currentexaddr)&&
+                                state->currentexvald == (u32)ARMul_ReadWord(state, state->currentexaddr + 4))
+                            enter = true;
+                        //todo bug this and STREXD and LDREXD http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.ddi0360e/CHDGJGGC.html
+                        if (enter) {
+                            ARMul_StoreWordN(state, LHS, state->Reg[RHSReg]);
+                            ARMul_StoreWordN(state,LHS + 4 , state->Reg[RHSReg + 1]);
+                            state->Reg[DESTReg] = 0;
+                        } else {
+                            state->Reg[DESTReg] = 1;
+                        }
+                        break;
+                    }
 #endif
                    dest = DPRegRHS;
                    WRITEDEST (dest);
                    break;
-                case 0x1b:      /* MOVS reg */
+                case 0x1B:      /* MOVS reg */
 #ifdef MODET
+                    /* ldrexd ichfly */
+                    if (BITS(0, 11) == 0xF9F) { //strexd
+                        lhs = LHS;
+                        state->currentexaddr = lhs;
+                        state->currentexval = (u32)ARMul_ReadWord(state, lhs);
+                        state->currentexvald = (u32)ARMul_ReadWord(state, lhs + 4);
+                        state->Reg[DESTReg] = ARMul_LoadWordN(state, lhs);
+                        state->Reg[DESTReg] = ARMul_LoadWordN(state, lhs + 4);
+                        break;
+                    }
                    if ((BITS (4, 11) & 0xF9) == 0x9)
                        /* LDR register offset, write-back, up, pre indexed.  */
                        LHPREUPWB ();
                    /* Continue with remaining instruction decoding.  */
 #endif
                    dest = DPSRegRHS;
                    WRITESDEST (dest);
@@ -2297,12 +2337,12 @@ mainswitch:
                        if (state->currentexval == (u32)ARMul_LoadHalfWord(state, state->currentexaddr))enter = true;
-                        ARMul_StoreHalfWord(state, lhs, RHS);
                        //StoreWord(state, lhs, RHS)
                        if (state->Aborted) {
                            TAKEABORT;
                        }
                        if (enter) {
+                            ARMul_StoreHalfWord(state, lhs, RHS);
                            state->Reg[DESTReg] = 0;
                        } else {
                            state->Reg[DESTReg] = 1;
@@ -2520,7 +2560,7 @@ mainswitch:
                        /* TSTP immed.  */
 #ifdef MODE32
                        state->Cpsr = GETSPSR (state->Bank);
-                        //ARMul_CPSRAltered (state);
+                        ARMul_CPSRAltered (state);
 #else
                        temp = LHS & DPImmRHS;
                        SETR15PSR (temp);
@@ -2547,7 +2587,7 @@ mainswitch:
                        /* TEQP immed.  */
 #ifdef MODE32
                        state->Cpsr = GETSPSR (state->Bank);
-                        //ARMul_CPSRAltered (state);
+                        ARMul_CPSRAltered (state);
 #else
                        temp = LHS ^ DPImmRHS;
                        SETR15PSR (temp);
@@ -2568,7 +2608,7 @@ mainswitch:
                        /* CMPP immed.  */
 #ifdef MODE32
                        state->Cpsr = GETSPSR (state->Bank);
-                        //ARMul_CPSRAltered (state);
+                        ARMul_CPSRAltered (state);
 #else
                        temp = LHS - DPImmRHS;
                        SETR15PSR (temp);
@@ -2604,7 +2644,7 @@ mainswitch:
                        /* CMNP immed.  */
 #ifdef MODE32
                        state->Cpsr = GETSPSR (state->Bank);
-                        //ARMul_CPSRAltered (state);
+                        ARMul_CPSRAltered (state);
 #else
                        temp = LHS + DPImmRHS;
                        SETR15PSR (temp);
@@ -3055,17 +3095,14 @@ mainswitch:
                case 0x68:      /* Store Word, No WriteBack, Post Inc, Reg.  */
                    //ichfly PKHBT PKHTB todo check this
-                    if ((instr & 0x70) == 0x10) //pkhbt
+                    if ((instr & 0x70) == 0x10) { //pkhbt
-                    {
                        u8 idest = BITS(12, 15);
                        u8 rfis = BITS(16, 19);
                        u8 rlast = BITS(0, 3);
                        u8 ishi = BITS(7,11);
                        state->Reg[idest] = (state->Reg[rfis] & 0xFFFF) | ((state->Reg[rlast] << ishi) & 0xFFFF0000);
                        break;
-                    }
+                    } else if ((instr & 0x70) == 0x50) { //pkhtb
-                    else if ((instr & 0x70) == 0x50)//pkhtb
-                    {
                        u8 idest = BITS(12, 15);
                        u8 rfis = BITS(16, 19);
                        u8 rlast = BITS(0, 3);
@@ -3073,8 +3110,7 @@ mainswitch:
                        if (ishi == 0)ishi = 0x20;
                        state->Reg[idest] = (((int)(state->Reg[rlast]) >> (int)(ishi))& 0xFFFF) | ((state->Reg[rfis]) & 0xFFFF0000);
                        break;
-                    }
+                    } else if (BIT (4)) {
-                    else if (BIT (4)) {
 #ifdef MODE32
                        if (state->is_v6
                                && handle_v6_insn (state, instr))
@@ -3437,7 +3473,7 @@ mainswitch:
                case 0x7f:      /* Load Byte, WriteBack, Pre Inc, Reg.  */
                    if (BIT (4)) {
-                        DEBUG("got unhandled special breakpoint\n");
+                        LOG_DEBUG(Core_ARM11, "got unhandled special breakpoint");
                        return 1;
                    }
                    UNDEF_LSRBaseEQOffWb;
@@ -3686,13 +3722,11 @@ mainswitch:
                /* Co-Processor Data Transfers.  */
                case 0xc4:
-                    if ((instr & 0x0FF00FF0) == 0xC400B10) //vmov BIT(0-3), BIT(12-15), BIT(16-20),  vmov d0, r0, r0
+                    if ((instr & 0x0FF00FF0) == 0xC400B10) { //vmov BIT(0-3), BIT(12-15), BIT(16-20),  vmov d0, r0, r0
-                    {
                        state->ExtReg[BITS(0, 3) << 1] = state->Reg[BITS(12, 15)];
                        state->ExtReg[(BITS(0, 3) << 1) + 1] = state->Reg[BITS(16, 20)];
                        break;
-                    }
+                    } else if (state->is_v5) {
-                    else if (state->is_v5) {
                        /* Reading from R15 is UNPREDICTABLE.  */
                        if (BITS (12, 15) == 15 || BITS (16, 19) == 15)
                            ARMul_UndefInstr (state, instr);
@@ -3712,22 +3746,18 @@ mainswitch:
                    break;
                case 0xc5:
-                    if ((instr & 0x00000FF0) == 0xB10) //vmov BIT(12-15), BIT(16-20), BIT(0-3) vmov r0, r0, d0
+                    if ((instr & 0x00000FF0) == 0xB10) { //vmov BIT(12-15), BIT(16-20), BIT(0-3) vmov r0, r0, d0
-                    {
                        state->Reg[BITS(12, 15)] = state->ExtReg[BITS(0, 3) << 1];
                        state->Reg[BITS(16, 19)] = state->ExtReg[(BITS(0, 3) << 1) + 1];
                        break;
-                    }
+                    } else if (state->is_v5) {
-                    else if (state->is_v5) {
                        /* Writes to R15 are UNPREDICATABLE.  */
                        if (DESTReg == 15 || LHSReg == 15)
                            ARMul_UndefInstr (state, instr);
                        /* Is access to the coprocessor allowed ?  */
-                        else if (!CP_ACCESS_ALLOWED(state, CPNum))
+                        else if (!CP_ACCESS_ALLOWED(state, CPNum)) {
-                        {
                            ARMul_UndefInstr(state, instr);
-                        }
+                        } else {
-                        else {
                            /* MRRC, ARMv5TE and up */
                            ARMul_MRRC (state, instr, &DEST, &(state->Reg[LHSReg]));
                            break;
@@ -4565,7 +4595,7 @@ out:
 #ifdef MODE32
        if (state->Bank > 0) {
            state->Cpsr = state->Spsr[state->Bank];
-            //ARMul_CPSRAltered (state);
+            ARMul_CPSRAltered (state);
        }
 #ifdef MODET
        if (TFLAG)
@@ -5256,7 +5286,7 @@ L_ldm_s_makeabort:
            //chy 2006-02-16 , should not consider system mode, don't conside 26bit mode
            if (state->Mode != USER26MODE && state->Mode != USER32MODE ) {
                state->Cpsr = GETSPSR (state->Bank);
-                //ARMul_CPSRAltered (state);
+                ARMul_CPSRAltered (state);
            }
            WriteR15 (state, PC);
@@ -5641,30 +5671,9 @@ L_stm_s_takeabort:
    static int
    handle_v6_insn (ARMul_State * state, ARMword instr) {
-        switch (BITS (20, 27)) {
+                ARMword lhs, temp;
-        //ichfly
-        case 0x66: //UQSUB8
-            if ((instr & 0x0FF00FF0) == 0x06600FF0) {
-                u32 rd = (instr >> 12) & 0xF;
-                u32 rm = (instr >> 16) & 0xF;
-                u32 rn = (instr >> 0) & 0xF;
-                u32 subfrom = state->Reg[rm];
-                u32 tosub = state->Reg[rn];
-                u8 b1 = (u8)((u8)(subfrom)-(u8)(tosub));
+        switch (BITS (20, 27)) {
-                if (b1 > (u8)(subfrom)) b1 = 0;
-                u8 b2 = (u8)((u8)(subfrom >> 8) - (u8)(tosub >> 8));
-                if (b2 > (u8)(subfrom >> 8)) b2 = 0;
-                u8 b3 = (u8)((u8)(subfrom >> 16) - (u8)(tosub >> 16));
-                if (b3 > (u8)(subfrom >> 16)) b3 = 0;
-                u8 b4 = (u8)((u8)(subfrom >> 24) - (u8)(tosub >> 24));
-                if (b4 > (u8)(subfrom >> 24)) b4 = 0;
-                state->Reg[rd] = (u32)(b1 | b2 << 8 | b3 << 16 | b4 << 24);
-                return 1;
-            } else {
-                printf("UQSUB8 decoding fail %08X",instr);
-            }
-#if 0
        case 0x03:
            printf ("Unhandled v6 insn: ldr\n");
            break;
@@ -5678,9 +5687,43 @@ L_stm_s_takeabort:
            printf ("Unhandled v6 insn: smi\n");
            break;
        case 0x18:
+                        if (BITS(4, 7) == 0x9) {
+                                /* strex */
+                                u32 l = LHSReg;
+                                u32 r = RHSReg;
+                                lhs = LHS;
+                                bool enter = false;
+                                if (state->currentexval == (u32)ARMul_ReadWord(state, state->currentexaddr))enter = true;
+                                //StoreWord(state, lhs, RHS)
+                                if (state->Aborted) {
+                                        TAKEABORT;
+                                }
+                                if (enter) {
+                                        ARMul_StoreWordS(state, lhs, RHS);
+                                        state->Reg[DESTReg] = 0;
+                                }
+                                else {
+                                        state->Reg[DESTReg] = 1;
+                                }
+                                return 1;
+                        }
            printf ("Unhandled v6 insn: strex\n");
            break;
        case 0x19:
+                        /* ldrex */
+                        if (BITS(4, 7) == 0x9) {
+                                lhs = LHS;
+                                state->currentexaddr = lhs;
+                                state->currentexval = ARMul_ReadWord(state, lhs);
+                                LoadWord(state, instr, lhs);
+                                return 1;
+                        }
            printf ("Unhandled v6 insn: ldrex\n");
            break;
        case 0x1a:
@@ -5690,9 +5733,52 @@ L_stm_s_takeabort:
            printf ("Unhandled v6 insn: ldrexd\n");
            break;
        case 0x1c:
+                        if (BITS(4, 7) == 0x9) {
+                                /* strexb */
+                                lhs = LHS;
+                                bool enter = false;
+                                if (state->currentexval == (u32)ARMul_ReadByte(state, state->currentexaddr))enter = true;
+                                BUSUSEDINCPCN;
+                                if (state->Aborted) {
+                                        TAKEABORT;
+                                }
+                                if (enter) {
+                                        ARMul_StoreByte(state, lhs, RHS);
+                                        state->Reg[DESTReg] = 0;
+                                }
+                                else {
+                                        state->Reg[DESTReg] = 1;
+                                }
+                                //printf("In %s, strexb not implemented\n", __FUNCTION__);
+                                UNDEF_LSRBPC;
+                                /* WRITESDEST (dest); */
+                                return 1;
+                        }
            printf ("Unhandled v6 insn: strexb\n");
            break;
        case 0x1d:
+                        if ((BITS(4, 7)) == 0x9) {
+                                /* ldrexb */
+                                temp = LHS;
+                                LoadByte(state, instr, temp, LUNSIGNED);
+                                state->currentexaddr = temp;
+                                state->currentexval = (u32)ARMul_ReadByte(state, temp);
+                                //state->Reg[BITS(12, 15)] = ARMul_LoadByte(state, state->Reg[BITS(16, 19)]);
+                                //printf("ldrexb\n");
+                                //printf("instr is %x rm is %d\n", instr, BITS(16, 19));
+                                //exit(-1);
+                                //printf("In %s, ldrexb not implemented\n", __FUNCTION__);
+                                return 1;
+                        }
            printf ("Unhandled v6 insn: ldrexb\n");
            break;
        case 0x1e:
@@ -5713,10 +5799,8 @@ L_stm_s_takeabort:
        case 0x3f:
            printf ("Unhandled v6 insn: rbit\n");
            break;
-#endif
        case 0x61:
-            if ((instr & 0xFF0) == 0xf70)//ssub16
+            if ((instr & 0xFF0) == 0xf70) { //ssub16
-            {
                u8 tar = BITS(12, 15);
                u8 src1 = BITS(16, 19);
                u8 src2 = BITS(0, 3);
@@ -5724,23 +5808,20 @@ L_stm_s_takeabort:
                s16 a2 = ((state->Reg[src1] >> 0x10) & 0xFFFF);
                s16 b1 = (state->Reg[src2] & 0xFFFF);
                s16 b2 = ((state->Reg[src2] >> 0x10) & 0xFFFF);
-                state->Reg[tar] = (a1 - a2)&0xFFFF | (((b1 - b2)&0xFFFF)<< 0x10);
+                                state->Reg[tar] = ((a1 - a2) & 0xFFFF) | (((b1 - b2) & 0xFFFF) << 0x10);
                return 1;
-            }
+            } else if ((instr & 0xFF0) == 0xf10) { //sadd16
-            else if ((instr & 0xFF0) == 0xf10)//sadd16
+                const u8 rd_idx = BITS(12, 15);
-            {
+                const u8 rm_idx = BITS(0, 3);
-                u8 tar = BITS(12, 15);
+                const u8 rn_idx = BITS(16, 19);
-                u8 src1 = BITS(16, 19);
+                const s16 rm_lo = (state->Reg[rm_idx] & 0xFFFF);
-                u8 src2 = BITS(0, 3);
+                const s16 rm_hi = ((state->Reg[rm_idx] >> 16) & 0xFFFF);
-                s16 a1 = (state->Reg[src1] & 0xFFFF);
+                const s16 rn_lo = (state->Reg[rn_idx] & 0xFFFF);
-                s16 a2 = ((state->Reg[src1] >> 0x10) & 0xFFFF);
+                const s16 rn_hi = ((state->Reg[rn_idx] >> 16) & 0xFFFF);
-                s16 b1 = (state->Reg[src2] & 0xFFFF);
-                s16 b2 = ((state->Reg[src2] >> 0x10) & 0xFFFF);
+                state->Reg[rd_idx] = ((rn_lo + rm_lo) & 0xFFFF) | (((rn_hi + rm_hi) & 0xFFFF) << 16);
-                state->Reg[tar] = (a1 + a2)&0xFFFF | (((b1 + b2)&0xFFFF)<< 0x10);
                return 1;
-            }
+            } else if ((instr & 0xFF0) == 0xf50) { //ssax
-            else if ((instr & 0xFF0) == 0xf50)//ssax
-            {
                u8 tar = BITS(12, 15);
                u8 src1 = BITS(16, 19);
                u8 src2 = BITS(0, 3);
@@ -5748,11 +5829,9 @@ L_stm_s_takeabort:
                s16 a2 = ((state->Reg[src1] >> 0x10) & 0xFFFF);
                s16 b1 = (state->Reg[src2] & 0xFFFF);
                s16 b2 = ((state->Reg[src2] >> 0x10) & 0xFFFF);
-                state->Reg[tar] = (a1 - b2) & 0xFFFF | (((a2 + b1) & 0xFFFF) << 0x10);
+                                state->Reg[tar] = ((a1 + b2) & 0xFFFF) | (((a2 - b1) & 0xFFFF) << 0x10);
                return 1;
-            }
+            } else if ((instr & 0xFF0) == 0xf30) { //sasx
-            else if ((instr & 0xFF0) == 0xf30)//sasx
-            {
                u8 tar = BITS(12, 15);
                u8 src1 = BITS(16, 19);
                u8 src2 = BITS(0, 3);
@@ -5760,127 +5839,445 @@ L_stm_s_takeabort:
                s16 a2 = ((state->Reg[src1] >> 0x10) & 0xFFFF);
                s16 b1 = (state->Reg[src2] & 0xFFFF);
                s16 b2 = ((state->Reg[src2] >> 0x10) & 0xFFFF);
-                state->Reg[tar] = (a2 - b1) & 0xFFFF | (((a2 + b1) & 0xFFFF) << 0x10);
+                                state->Reg[tar] = ((a1 - b2) & 0xFFFF) | (((a2 + b1) & 0xFFFF) << 0x10);
                return 1;
-            }
+            } else printf ("Unhandled v6 insn: sadd/ssub/ssax/sasx\n");
-            else printf ("Unhandled v6 insn: sadd/ssub\n");
            break;
-        case 0x62:
+        case 0x62: // QSUB16 and QADD16
-            if ((instr & 0xFF0) == 0xf70)//QSUB16
+            if ((instr & 0xFF0) == 0xf70 || (instr & 0xFF0) == 0xf10) {
-            {
+                const u8 rd_idx = BITS(12, 15);
-                u8 tar = BITS(12, 15);
+                const u8 rn_idx = BITS(16, 19);
-                u8 src1 = BITS(16, 19);
+                const u8 rm_idx = BITS(0, 3);
-                u8 src2 = BITS(0, 3);
+                const s16 rm_lo = (state->Reg[rm_idx] & 0xFFFF);
-                s16 a1 = (state->Reg[src1] & 0xFFFF);
+                const s16 rm_hi = ((state->Reg[rm_idx] >> 0x10) & 0xFFFF);
-                s16 a2 = ((state->Reg[src1] >> 0x10) & 0xFFFF);
+                const s16 rn_lo = (state->Reg[rn_idx] & 0xFFFF);
-                s16 b1 = (state->Reg[src2] & 0xFFFF);
+                const s16 rn_hi = ((state->Reg[rn_idx] >> 0x10) & 0xFFFF);
-                s16 b2 = ((state->Reg[src2] >> 0x10) & 0xFFFF);
-                s32 res1 = (a1 - b1);
+                s32 lo_result;
-                s32 res2 = (a2 - b2);
+                s32 hi_result;
-                if (res1 > 0x7FFF) res1 = 0x7FFF;
-                if (res2 > 0x7FFF) res2 = 0x7FFF;
+                // QSUB16
-                if (res1 < 0x7FFF) res1 = -0x8000;
+                if ((instr & 0xFF0) == 0xf70) {
-                if (res2 < 0x7FFF) res2 = -0x8000;
+                    lo_result = (rn_lo - rm_lo);
-                state->Reg[tar] = (res1 & 0xFFFF) | ((res2 & 0xFFFF) << 0x10);
+                    hi_result = (rn_hi - rm_hi);
-                return 1;
+                }
-            }
+                else { // QADD16
-            else if ((instr & 0xFF0) == 0xf10)//QADD16
+                    lo_result = (rn_lo + rm_lo);
-            {
+                    hi_result = (rn_hi + rm_hi);
-                u8 tar = BITS(12, 15);
+                }
-                u8 src1 = BITS(16, 19);
-                u8 src2 = BITS(0, 3);
+                if (lo_result > 0x7FFF)
-                s16 a1 = (state->Reg[src1] & 0xFFFF);
+                    lo_result = 0x7FFF;
-                s16 a2 = ((state->Reg[src1] >> 0x10) & 0xFFFF);
+                else if (lo_result < -0x8000)
-                s16 b1 = (state->Reg[src2] & 0xFFFF);
+                    lo_result = -0x8000;
-                s16 b2 = ((state->Reg[src2] >> 0x10) & 0xFFFF);
-                s32 res1 = (a1 + b1);
+                if (hi_result > 0x7FFF)
-                s32 res2 = (a2 + b2);
+                    hi_result = 0x7FFF;
-                if (res1 > 0x7FFF) res1 = 0x7FFF;
+                else if (hi_result < -0x8000)
-                if (res2 > 0x7FFF) res2 = 0x7FFF;
+                    hi_result = -0x8000;
-                if (res1 < 0x7FFF) res1 = -0x8000;
-                if (res2 < 0x7FFF) res2 = -0x8000;
+                state->Reg[rd_idx] = (lo_result & 0xFFFF) | ((hi_result & 0xFFFF) << 16);
-                state->Reg[tar] = ((res1) & 0xFFFF) | (((res2) & 0xFFFF) << 0x10);
                return 1;
+            } else {
+                printf("Unhandled v6 insn: %08x", BITS(20, 27));
            }
-            else printf ("Unhandled v6 insn: qadd/qsub\n");
            break;
-#if 0
        case 0x63:
            printf ("Unhandled v6 insn: shadd/shsub\n");
            break;
        case 0x65:
-            printf ("Unhandled v6 insn: uadd/usub\n");
+        {
+            u32 rd = (instr >> 12) & 0xF;
+            u32 rn = (instr >> 16) & 0xF;
+            u32 rm = (instr >> 0) & 0xF;
+            u32 from = state->Reg[rn];
+            u32 to = state->Reg[rm];
+            if ((instr & 0xFF0) == 0xF10 || (instr & 0xFF0) == 0xF70) { // UADD16/USUB16
+                u32 h1, h2;
+                state->Cpsr &= 0xfff0ffff;
+                if ((instr & 0x0F0) == 0x070) { // USUB16
+                    h1 = ((u16)from - (u16)to);
+                    h2 = ((u16)(from >> 16) - (u16)(to >> 16));
+                    if (!(h1 & 0xffff0000)) state->Cpsr |= (3 << 16);
+                    if (!(h2 & 0xffff0000)) state->Cpsr |= (3 << 18);
+                }
+                else { // UADD16
+                    h1 = ((u16)from + (u16)to);
+                    h2 = ((u16)(from >> 16) + (u16)(to >> 16));
+                    if (h1 & 0xffff0000) state->Cpsr |= (3 << 16);
+                    if (h2 & 0xffff0000) state->Cpsr |= (3 << 18);
+                }
+                state->Reg[rd] = (u32)((h1 & 0xffff) | ((h2 & 0xffff) << 16));
+                return 1;
+            }
+            else
+                if ((instr & 0xFF0) == 0xF90 || (instr & 0xFF0) == 0xFF0) { // UADD8/USUB8
+                    u32 b1, b2, b3, b4;
+                    state->Cpsr &= 0xfff0ffff;
+                    if ((instr & 0x0F0) == 0x0F0) { // USUB8
+                        b1 = ((u8)from - (u8)to);
+                        b2 = ((u8)(from >> 8) - (u8)(to >> 8));
+                        b3 = ((u8)(from >> 16) - (u8)(to >> 16));
+                        b4 = ((u8)(from >> 24) - (u8)(to >> 24));
+                        if (!(b1 & 0xffffff00)) state->Cpsr |= (1 << 16);
+                        if (!(b2 & 0xffffff00)) state->Cpsr |= (1 << 17);
+                        if (!(b3 & 0xffffff00)) state->Cpsr |= (1 << 18);
+                        if (!(b4 & 0xffffff00)) state->Cpsr |= (1 << 19);
+                    }
+                    else { // UADD8
+                        b1 = ((u8)from + (u8)to);
+                        b2 = ((u8)(from >> 8) + (u8)(to >> 8));
+                        b3 = ((u8)(from >> 16) + (u8)(to >> 16));
+                        b4 = ((u8)(from >> 24) + (u8)(to >> 24));
+                        if (b1 & 0xffffff00) state->Cpsr |= (1 << 16);
+                        if (b2 & 0xffffff00) state->Cpsr |= (1 << 17);
+                        if (b3 & 0xffffff00) state->Cpsr |= (1 << 18);
+                        if (b4 & 0xffffff00) state->Cpsr |= (1 << 19);
+                    }
+                    state->Reg[rd] = (u32)(b1 | (b2 & 0xff) << 8 | (b3 & 0xff) << 16 | (b4 & 0xff) << 24);
+                    return 1;
+                }
+        }
+            printf("Unhandled v6 insn: uasx/usax\n");
            break;
        case 0x66:
-            printf ("Unhandled v6 insn: uqadd/uqsub\n");
+                        if ((instr & 0x0FF00FF0) == 0x06600FF0) { //uqsub8
+                u32 rd = (instr >> 12) & 0xF;
+                u32 rm = (instr >> 16) & 0xF;
+                u32 rn = (instr >> 0) & 0xF;
+                u32 subfrom = state->Reg[rm];
+                u32 tosub = state->Reg[rn];
+                u8 b1 = (u8)((u8)(subfrom)-(u8)(tosub));
+                if (b1 > (u8)(subfrom)) b1 = 0;
+                u8 b2 = (u8)((u8)(subfrom >> 8) - (u8)(tosub >> 8));
+                if (b2 > (u8)(subfrom >> 8)) b2 = 0;
+                u8 b3 = (u8)((u8)(subfrom >> 16) - (u8)(tosub >> 16));
+                if (b3 > (u8)(subfrom >> 16)) b3 = 0;
+                u8 b4 = (u8)((u8)(subfrom >> 24) - (u8)(tosub >> 24));
+                if (b4 > (u8)(subfrom >> 24)) b4 = 0;
+                state->Reg[rd] = (u32)(b1 | b2 << 8 | b3 << 16 | b4 << 24);
+                return 1;
+            } else {
+                printf ("Unhandled v6 insn: uqsub16\n");
+            }
            break;
        case 0x67:
            printf ("Unhandled v6 insn: uhadd/uhsub\n");
            break;
        case 0x68:
-            printf ("Unhandled v6 insn: pkh/sxtab/selsxtb\n");
+        {
-            break;
+            u32 rd = (instr >> 12) & 0xF;
-#endif
+            u32 rn = (instr >> 16) & 0xF;
-        case 0x6c:
+            u32 rm = (instr >> 0) & 0xF;
-            if ((instr & 0xf03f0) == 0xf0070) //uxtb16
+            u32 from = state->Reg[rn];
-            {
+            u32 to = state->Reg[rm];
-                u8 src1 = BITS(0, 3);
+            u32 cpsr = state->Cpsr;
-                u8 tar = BITS(12, 15);
+            if ((instr & 0xFF0) == 0xFB0) { // SEL
-                u32 base = state->Reg[src1];
+                u32 result;
-                u32 shamt = BITS(9,10)* 8;
+                if (cpsr & (1 << 16))
-                u32 in = ((base << (32 - shamt)) | (base >> shamt));
+                    result = from & 0xff;
-                state->Reg[tar] = in & 0x00FF00FF;
+                else
+                    result = to & 0xff;
+                if (cpsr & (1 << 17))
+                    result |= from & 0x0000ff00;
+                else
+                    result |= to & 0x0000ff00;
+                if (cpsr & (1 << 18))
+                    result |= from & 0x00ff0000;
+                else
+                    result |= to & 0x00ff0000;
+                if (cpsr & (1 << 19))
+                    result |= from & 0xff000000;
+                else
+                    result |= to & 0xff000000;
+                state->Reg[rd] = result;
                return 1;
            }
-            else
+        }
-                printf ("Unhandled v6 insn: uxtb16/uxtab16\n");
+            printf("Unhandled v6 insn: pkh/sxtab/selsxtb\n");
            break;
+                case 0x6a: {
+                        ARMword Rm;
+                        int ror = -1;
+                        switch (BITS(4, 11)) {
+                                case 0x07:
+                                        ror = 0;
+                                        break;
+                                case 0x47:
+                                        ror = 8;
+                                        break;
+                                case 0x87:
+                                        ror = 16;
+                                        break;
+                                case 0xc7:
+                                        ror = 24;
+                                        break;
+                                case 0x01:
+                                case 0xf3:
+                                        //ichfly
+                                        //SSAT16
+                                {
+                                        u8 tar = BITS(12, 15);
+                                        u8 src = BITS(0, 3);
+                                        u8 val = BITS(16, 19) + 1;
+                                        s16 a1 = (state->Reg[src]);
+                                        s16 a2 = (state->Reg[src] >> 0x10);
+                                        s16 min = (s16)(0x8000 >> (16 - val));
+                                        s16 max = 0x7FFF >> (16 - val);
+                                        if (min > a1) a1 = min;
+                                        if (max < a1) a1 = max;
+                                        if (min > a2) a2 = min;
+                                        if (max < a2) a2 = max;
+                                        u32 temp2 = ((u32)(a2)) << 0x10;
+                                        state->Reg[tar] = (a1 & 0xFFFF) | (temp2);
+                                }
+                                return 1;
+                                default:
+                                        break;
+                        }
+                        if (ror == -1) {
+                                if (BITS(4, 6) == 0x7) {
+                                        printf("Unhandled v6 insn: ssat\n");
+                                        return 0;
+                                }
+                                break;
+                        }
+                        Rm = ((state->Reg[BITS(0, 3)] >> ror) & 0xFF);
+                        if (Rm & 0x80)
+                                Rm |= 0xffffff00;
+                        if (BITS(16, 19) == 0xf)
+                                /* SXTB */
+                                state->Reg[BITS(12, 15)] = Rm;
+                        else
+                                /* SXTAB */
+                                state->Reg[BITS(12, 15)] += Rm;
+                        return 1;
+                }
+                case 0x6b: {
+                        ARMword Rm;
+                        int ror = -1;
+                        switch (BITS(4, 11)) {
+                                case 0x07:
+                                        ror = 0;
+                                        break;
+                                case 0x47:
+                                        ror = 8;
+                                        break;
+                                case 0x87:
+                                        ror = 16;
+                                        break;
+                                case 0xc7:
+                                        ror = 24;
+                                        break;
+                                case 0xf3:
+                                        DEST = ((RHS & 0xFF) << 24) | ((RHS & 0xFF00)) << 8 | ((RHS & 0xFF0000) >> 8) | ((RHS & 0xFF000000) >> 24);
+                                        return 1;
+                                case 0xfb:
+                                        DEST = ((RHS & 0xFF) << 8) | ((RHS & 0xFF00)) >> 8 | ((RHS & 0xFF0000) << 8) | ((RHS & 0xFF000000) >> 8);
+                                        return 1;
+                                default:
+                                        break;
+                        }
+                        if (ror == -1)
+                                break;
+                        Rm = ((state->Reg[BITS(0, 3)] >> ror) & 0xFFFF);
+                        if (Rm & 0x8000)
+                                Rm |= 0xffff0000;
+                        if (BITS(16, 19) == 0xf)
+                                /* SXTH */
+                                state->Reg[BITS(12, 15)] = Rm;
+                        else
+                                /* SXTAH */
+                                state->Reg[BITS(12, 15)] = state->Reg[BITS(16, 19)] + Rm;
+                        return 1;
+                }
+                case 0x6c: // UXTB16 and UXTAB16
+                        {
+                                const u8 rm_idx = BITS(0, 3);
+                                const u8 rn_idx = BITS(16, 19);
+                                const u8 rd_idx = BITS(12, 15);
+                                const u32 rm_val = state->Reg[rm_idx];
+                                const u32 rn_val = state->Reg[rn_idx];
+                                const u32 rotation = BITS(10, 11) * 8;
+                                const u32 rotated_rm = ((rm_val << (32 - rotation)) | (rm_val >> rotation));
+                                // UXTB16
+                                if ((instr & 0xf03f0) == 0xf0070) {
+                                        state->Reg[rd_idx] = rotated_rm & 0x00FF00FF;
+                                }
+                                else { // UXTAB16
+                                        const u8 lo_rotated = (rotated_rm & 0xFF);
+                                        const u16 lo_result = (rn_val & 0xFFFF) + (u16)lo_rotated;
+                                        const u8 hi_rotated = (rotated_rm >> 16) & 0xFF;
+                                        const u16 hi_result = (rn_val >> 16) + (u16)hi_rotated;
+                                        state->Reg[rd_idx] = ((hi_result << 16) | (lo_result & 0xFFFF));
+                                }
+                                return 1;
+                        }
+                        break;
+                case 0x6e: {
+                        ARMword Rm;
+                        int ror = -1;
+                        switch (BITS(4, 11)) {
+                                case 0x07:
+                                        ror = 0;
+                                        break;
+                                case 0x47:
+                                        ror = 8;
+                                        break;
+                                case 0x87:
+                                        ror = 16;
+                                        break;
+                                case 0xc7:
+                                        ror = 24;
+                                        break;
+                                case 0x01:
+                                case 0xf3:
+                                        //ichfly
+                                        //USAT16
+                                {
+                                        u8 tar = BITS(12, 15);
+                                        u8 src = BITS(0, 3);
+                                        u8 val = BITS(16, 19);
+                                        s16 a1 = (state->Reg[src]);
+                                        s16 a2 = (state->Reg[src] >> 0x10);
+                                        s16 max = 0xFFFF >> (16 - val);
+                                        if (max < a1) a1 = max;
+                                        if (max < a2) a2 = max;
+                                        u32 temp2 = ((u32)(a2)) << 0x10;
+                                        state->Reg[tar] = (a1 & 0xFFFF) | (temp2);
+                                }
+                                return 1;
+                                default:
+                                        break;
+                        }
+                        if (ror == -1) {
+                                if (BITS(4, 6) == 0x7) {
+                                        printf("Unhandled v6 insn: usat\n");
+                                        return 0;
+                                }
+                                break;
+                        }
+                        Rm = ((state->Reg[BITS(0, 3)] >> ror) & 0xFF);
+                        if (BITS(16, 19) == 0xf)
+                                /* UXTB */
+                                state->Reg[BITS(12, 15)] = Rm;
+                        else
+                                /* UXTAB */
+                                state->Reg[BITS(12, 15)] = state->Reg[BITS(16, 19)] + Rm;
+                        return 1;
+                }
+                case 0x6f: {
+                        ARMword Rm;
+                        int ror = -1;
+                        switch (BITS(4, 11)) {
+                                case 0x07:
+                                        ror = 0;
+                                        break;
+                                case 0x47:
+                                        ror = 8;
+                                        break;
+                                case 0x87:
+                                        ror = 16;
+                                        break;
+                                case 0xc7:
+                                        ror = 24;
+                                        break;
+                                case 0xfb:
+                                        printf("Unhandled v6 insn: revsh\n");
+                                        return 0;
+                                default:
+                                        break;
+                        }
+                        if (ror == -1)
+                                break;
+                        Rm = ((state->Reg[BITS(0, 3)] >> ror) & 0xFFFF);
+                        /* UXT */
+                        /* state->Reg[BITS (12, 15)] = Rm; */
+                        /* dyf add */
+                        if (BITS(16, 19) == 0xf) {
+                                state->Reg[BITS(12, 15)] = (Rm >> (8 * BITS(10, 11))) & 0x0000FFFF;
+                        }
+                        else {
+                                /* UXTAH */
+                                /* state->Reg[BITS (12, 15)] = state->Reg [BITS (16, 19)] + Rm; */
+                                //            printf("rd is %x rn is %x rm is %x rotate is %x\n", state->Reg[BITS (12, 15)], state->Reg[BITS (16, 19)]
+                                //                   , Rm, BITS(10, 11));
+                                //            printf("icounter is %lld\n", state->NumInstrs);
+                                state->Reg[BITS(12, 15)] = (state->Reg[BITS(16, 19)] >> (8 * (BITS(10, 11)))) + Rm;
+                                //        printf("rd is %x\n", state->Reg[BITS (12, 15)]);
+                                //        exit(-1);
+                        }
+                        return 1;
+                }
        case 0x70:
-            if ((instr & 0xf0d0) == 0xf010)//smuad //ichfly
+            // ichfly
-            {
+            // SMUAD, SMUSD, SMLAD
-                u8 tar = BITS(16, 19);
+            if ((instr & 0xf0d0) == 0xf010 || (instr & 0xf0d0) == 0xf050 || (instr & 0xd0) == 0x10) {
-                u8 src1 = BITS(0, 3);
+                const u8 rd_idx = BITS(16, 19);
-                u8 src2 = BITS(8, 11);
+                const u8 rn_idx = BITS(0, 3);
-                u8 swap = BIT(5);
+                const u8 rm_idx = BITS(8, 11);
-                s16 a1 = (state->Reg[src1] & 0xFFFF);
+                const bool do_swap = (BIT(5) == 1);
-                s16 a2 = ((state->Reg[src1] >> 0x10) & 0xFFFF);
-                s16 b1 = swap ? ((state->Reg[src2] >> 0x10) & 0xFFFF) : (state->Reg[src2] & 0xFFFF);
+                u32 rm_val = state->Reg[rm_idx];
-                s16 b2 = swap ? (state->Reg[src2] & 0xFFFF) : ((state->Reg[src2] >> 0x10) & 0xFFFF);
+                const u32 rn_val = state->Reg[rn_idx];
-                state->Reg[tar] = a1*a2 + b1*b2;
-                return 1;
+                if (do_swap)
+                    rm_val = (((rm_val & 0xFFFF) << 16) | (rm_val >> 16));
-            }
-            else if ((instr & 0xf0d0) == 0xf050)//smusd
+                const s16 rm_lo = (rm_val & 0xFFFF);
-            {
+                const s16 rm_hi = ((rm_val >> 16) & 0xFFFF);
-                u8 tar = BITS(16, 19);
+                const s16 rn_lo = (rn_val & 0xFFFF);
-                u8 src1 = BITS(0, 3);
+                const s16 rn_hi = ((rn_val >> 16) & 0xFFFF);
-                u8 src2 = BITS(8, 11);
-                u8 swap = BIT(5);
+                // SMUAD
-                s16 a1 = (state->Reg[src1] & 0xFFFF);
+                if ((instr & 0xf0d0) == 0xf010) {
-                s16 a2 = ((state->Reg[src1] >> 0x10) & 0xFFFF);
+                    state->Reg[rd_idx] = (rn_lo * rm_lo) + (rn_hi * rm_hi);
-                s16 b1 = swap ? ((state->Reg[src2] >> 0x10) & 0xFFFF) : (state->Reg[src2] & 0xFFFF);
+                }
-                s16 b2 = swap ? (state->Reg[src2] & 0xFFFF) : ((state->Reg[src2] >> 0x10) & 0xFFFF);
+                // SMUSD
-                state->Reg[tar] = a1*a2 - b1*b2;
+                else if ((instr & 0xf0d0) == 0xf050) {
-                return 1;
+                    state->Reg[rd_idx] = (rn_lo * rm_lo) - (rn_hi * rm_hi);
-            }
+                }
-            else if ((instr & 0xd0) == 0x10)//smlad
+                // SMLAD
-            {
+                else {
-                u8 tar = BITS(16, 19);
+                    const u8 ra_idx = BITS(12, 15);
-                u8 src1 = BITS(0, 3);
+                    state->Reg[rd_idx] = (rn_lo * rm_lo) + (rn_hi * rm_hi) + (s32)state->Reg[ra_idx];
-                u8 src2 = BITS(8, 11);
+                }
-                u8 src3 = BITS(12, 15);
-                u8 swap = BIT(5);
-                u32 a3 = state->Reg[src3];
-                s16 a1 = (state->Reg[src1] & 0xFFFF);
-                s16 a2 = ((state->Reg[src1] >> 0x10) & 0xFFFF);
-                s16 b1 = swap ? ((state->Reg[src2] >> 0x10) & 0xFFFF) : (state->Reg[src2] & 0xFFFF);
-                s16 b2 = swap ? (state->Reg[src2] & 0xFFFF) : ((state->Reg[src2] >> 0x10) & 0xFFFF);
-                state->Reg[tar] = a1*a2 + b1*b2 + a3;
                return 1;
+            } else {
+                printf ("Unhandled v6 insn: smlsd\n");
            }
-            else printf ("Unhandled v6 insn: smuad/smusd/smlad/smlsd\n");
            break;
        case 0x74:
            printf ("Unhandled v6 insn: smlald/smlsld\n");
@@ -5891,332 +6288,18 @@ L_stm_s_takeabort:
        case 0x78:
            printf ("Unhandled v6 insn: usad/usada8\n");
            break;
-#if 0
        case 0x7a:
            printf ("Unhandled v6 insn: usbfx\n");
            break;
        case 0x7c:
            printf ("Unhandled v6 insn: bfc/bfi\n");
            break;
-#endif
-            /* add new instr for arm v6. */
-            ARMword lhs, temp;
-        case 0x18: {    /* ORR reg */
-            /* dyf add armv6 instr strex  2010.9.17 */
-            if (BITS (4, 7) == 0x9) {
-                u32 l = LHSReg;
-                u32 r = RHSReg;
-                lhs = LHS;
-                bool enter = false;
-                if (state->currentexval == (u32)ARMul_ReadWord(state, state->currentexaddr))enter = true;
-                ARMul_StoreWordS(state, lhs, RHS);
-                //StoreWord(state, lhs, RHS)
-                if (state->Aborted) {
-                    TAKEABORT;
-                }
-                if (enter) {
-                    state->Reg[DESTReg] = 0;
-                } else {
-                    state->Reg[DESTReg] = 1;
-                }
-                return 1;
-            }
-            break;
-        }
-        case 0x19: {    /* orrs reg */
-            /* dyf add armv6 instr ldrex  */
-            if (BITS (4, 7) == 0x9) {
-                lhs = LHS;
-                state->currentexaddr = lhs;
-                state->currentexval = ARMul_ReadWord(state, lhs);
-                LoadWord (state, instr, lhs);
-                return 1;
-            }
-            break;
-        }
-        case 0x1c: {    /* BIC reg */
-            /* dyf add for STREXB */
-            if (BITS (4, 7) == 0x9) {
-                lhs = LHS;
-                bool enter = false;
-                if (state->currentexval == (u32)ARMul_ReadByte(state, state->currentexaddr))enter = true;
-                ARMul_StoreByte (state, lhs, RHS);
-                BUSUSEDINCPCN;
-                if (state->Aborted) {
-                    TAKEABORT;
-                }
-                if (enter) {
-                    state->Reg[DESTReg] = 0;
-                } else {
-                    state->Reg[DESTReg] = 1;
-                }
-                //printf("In %s, strexb not implemented\n", __FUNCTION__);
-                UNDEF_LSRBPC;
-                /* WRITESDEST (dest); */
-                return 1;
-            }
-            break;
-        }
-        case 0x1d: {    /* BICS reg */
-            if ((BITS (4, 7)) == 0x9) {
-                /* ldrexb */
-                temp = LHS;
-                LoadByte (state, instr, temp, LUNSIGNED);
-                state->currentexaddr = temp;
-                state->currentexval = (u32)ARMul_ReadByte(state, temp);
-                //state->Reg[BITS(12, 15)] = ARMul_LoadByte(state, state->Reg[BITS(16, 19)]);
-                //printf("ldrexb\n");
-                //printf("instr is %x rm is %d\n", instr, BITS(16, 19));
-                //exit(-1);
-                //printf("In %s, ldrexb not implemented\n", __FUNCTION__);
-                return 1;
-            }
-            break;
-        }
-        /* add end */
-        case 0x6a: {
-            ARMword Rm;
-            int ror = -1;
-            switch (BITS (4, 11)) {
-            case 0x07:
-                ror = 0;
-                break;
-            case 0x47:
-                ror = 8;
-                break;
-            case 0x87:
-                ror = 16;
-                break;
-            case 0xc7:
-                ror = 24;
-                break;
-            case 0x01:
-            case 0xf3:
-                //ichfly
-                //SSAT16
-            {
-                         u8 tar = BITS(12,15);
-                         u8 src = BITS(0, 3);
-                         u8 val = BITS(16, 19) + 1;
-                         s16 a1 = (state->Reg[src]);
-                         s16 a2 = (state->Reg[src] >> 0x10);
-                         s16 min = (s16)(0x8000) >> (16 - val);
-                         s16 max = 0x7FFF >> (16 - val);
-                         if (min > a1) a1 = min;
-                         if (max < a1) a1 = max;
-                         if (min > a2) a2 = min;
-                         if (max < a2) a2 = max;
-                         u32 temp2 = ((u32)(a2)) << 0x10;
-                         state->Reg[tar] = (a1&0xFFFF) | (temp2);
-            }
-                return 1;
-            default:
-                break;
-            }
-            if (ror == -1) {
-                if (BITS (4, 6) == 0x7) {
-                    printf ("Unhandled v6 insn: ssat\n");
-                    return 0;
-                }
-                break;
-            }
-            Rm = ((state->Reg[BITS (0, 3)] >> ror) & 0xFF);
-            if (Rm & 0x80)
-                Rm |= 0xffffff00;
-            if (BITS (16, 19) == 0xf)
-                /* SXTB */
-                state->Reg[BITS (12, 15)] = Rm;
-            else
-                /* SXTAB */
-                state->Reg[BITS (12, 15)] += Rm;
-        }
-        return 1;
-        case 0x6b: {
-            ARMword Rm;
-            int ror = -1;
-            switch (BITS (4, 11)) {
-            case 0x07:
-                ror = 0;
-                break;
-            case 0x47:
-                ror = 8;
-                break;
-            case 0x87:
-                ror = 16;
-                break;
-            case 0xc7:
-                ror = 24;
-                break;
-            case 0xf3:
-                DEST = ((RHS & 0xFF) << 24) | ((RHS & 0xFF00)) << 8 | ((RHS & 0xFF0000) >> 8) | ((RHS & 0xFF000000) >> 24);
-                return 1;
-            case 0xfb:
-                DEST = ((RHS & 0xFF) << 8) | ((RHS & 0xFF00)) >> 8 | ((RHS & 0xFF0000) << 8) | ((RHS & 0xFF000000) >> 8);
-                return 1;
-            default:
-                break;
-            }
-            if (ror == -1)
-                break;
-            Rm = ((state->Reg[BITS (0, 3)] >> ror) & 0xFFFF);
-            if (Rm & 0x8000)
-                Rm |= 0xffff0000;
-            if (BITS (16, 19) == 0xf)
-                /* SXTH */
-                state->Reg[BITS (12, 15)] = Rm;
-            else
-                /* SXTAH */
-                state->Reg[BITS (12, 15)] = state->Reg[BITS (16, 19)] + Rm;
-        }
-        return 1;
-        case 0x6e: {
-            ARMword Rm;
-            int ror = -1;
-            switch (BITS (4, 11)) {
-            case 0x07:
-                ror = 0;
-                break;
-            case 0x47:
-                ror = 8;
-                break;
-            case 0x87:
-                ror = 16;
-                break;
-            case 0xc7:
-                ror = 24;
-                break;
-            case 0x01:
-            case 0xf3:
-                //ichfly
-                //USAT16
-                {
-                    u8 tar = BITS(12, 15);
-                    u8 src = BITS(0, 3);
-                    u8 val = BITS(16, 19);
-                    s16 a1 = (state->Reg[src]);
-                    s16 a2 = (state->Reg[src] >> 0x10);
-                    s16 max = 0xFFFF >> (16 - val);
-                    if (max < a1) a1 = max;
-                    if (max < a2) a2 = max;
-                    u32 temp2 = ((u32)(a2)) << 0x10;
-                    state->Reg[tar] = (a1 & 0xFFFF) | (temp2);
-                }
-                return 1;
-            default:
-                break;
-            }
-            if (ror == -1) {
-                if (BITS (4, 6) == 0x7) {
-                    printf ("Unhandled v6 insn: usat\n");
-                    return 0;
-                }
-                break;
-            }
-            Rm = ((state->Reg[BITS (0, 3)] >> ror) & 0xFF);
-            if (BITS (16, 19) == 0xf)
-                /* UXTB */
-                state->Reg[BITS (12, 15)] = Rm;
-            else
-                /* UXTAB */
-                state->Reg[BITS (12, 15)] = state->Reg[BITS (16, 19)] + Rm;
-        }
-        return 1;
-        case 0x6f: {
-            ARMword Rm;
-            int ror = -1;
-            switch (BITS (4, 11)) {
-            case 0x07:
-                ror = 0;
-                break;
-            case 0x47:
-                ror = 8;
-                break;
-            case 0x87:
-                ror = 16;
-                break;
-            case 0xc7:
-                ror = 24;
-                break;
-            case 0xfb:
-                printf ("Unhandled v6 insn: revsh\n");
-                return 0;
-            default:
-                break;
-            }
-            if (ror == -1)
-                break;
-            Rm = ((state->Reg[BITS (0, 3)] >> ror) & 0xFFFF);
-            /* UXT */
-            /* state->Reg[BITS (12, 15)] = Rm; */
-            /* dyf add */
-            if (BITS (16, 19) == 0xf) {
-                state->Reg[BITS (12, 15)] = (Rm >> (8 * BITS(10, 11))) & 0x0000FFFF;
-            } else {
-                /* UXTAH */
-                /* state->Reg[BITS (12, 15)] = state->Reg [BITS (16, 19)] + Rm; */
-//            printf("rd is %x rn is %x rm is %x rotate is %x\n", state->Reg[BITS (12, 15)], state->Reg[BITS (16, 19)]
-//                   , Rm, BITS(10, 11));
-//            printf("icounter is %lld\n", state->NumInstrs);
-                state->Reg[BITS (12, 15)] = (state->Reg[BITS (16, 19)] >> (8 * (BITS(10, 11)))) + Rm;
-//        printf("rd is %x\n", state->Reg[BITS (12, 15)]);
-//        exit(-1);
-            }
-        }
-        return 1;
-#if 0
        case 0x84:
            printf ("Unhandled v6 insn: srs\n");
            break;
-#endif
        default:
            break;
        }
        printf("Unhandled v6 insn: UNKNOWN: %08x %08X\n", instr, BITS(20, 27));
        return 0;
-    }
+    }
+\ No newline at end of file
diff --git a/src/core/arm/interpreter/armsupp.cpp b/src/core/arm/interpreter/armsupp.cpp
index 2568b93ef..30519f216 100644
--- a/src/core/arm/interpreter/armsupp.cpp
+++ b/src/core/arm/interpreter/armsupp.cpp
@@ -665,7 +665,7 @@ ARMul_MCR (ARMul_State * state, ARMword instr, ARMword source)
    //if (!CP_ACCESS_ALLOWED (state, CPNum)) {
    if (!state->MCR[CPNum]) {
        //chy 2004-07-19 should fix in the future ????!!!!
-        DEBUG("SKYEYE ARMul_MCR, ACCESS_not ALLOWed, UndefinedInstr  CPnum is %x, source %x\n",CPNum, source);
+        LOG_ERROR(Core_ARM11, "SKYEYE ARMul_MCR, ACCESS_not ALLOWed, UndefinedInstr  CPnum is %x, source %x",CPNum, source);
        ARMul_UndefInstr (state, instr);
        return;
    }
@@ -690,7 +690,7 @@ ARMul_MCR (ARMul_State * state, ARMword instr, ARMword source)
    }
    if (cpab == ARMul_CANT) {
-        DEBUG("SKYEYE ARMul_MCR, CANT, UndefinedInstr %x CPnum is %x, source %x\n", instr, CPNum, source); //ichfly todo
+        LOG_ERROR(Core_ARM11, "SKYEYE ARMul_MCR, CANT, UndefinedInstr %x CPnum is %x, source %x", instr, CPNum, source); //ichfly todo
        //ARMul_Abort (state, ARMul_UndefinedInstrV);
    } else {
        BUSUSEDINCPCN;
@@ -762,7 +762,7 @@ ARMword ARMul_MRC (ARMul_State * state, ARMword instr)
    //if (!CP_ACCESS_ALLOWED (state, CPNum)) {
    if (!state->MRC[CPNum]) {
        //chy 2004-07-19 should fix in the future????!!!!
-        DEBUG("SKYEYE ARMul_MRC,NOT ALLOWed UndefInstr  CPnum is %x, instr %x\n", CPNum, instr);
+        LOG_ERROR(Core_ARM11, "SKYEYE ARMul_MRC,NOT ALLOWed UndefInstr  CPnum is %x, instr %x", CPNum, instr);
        ARMul_UndefInstr (state, instr);
        return -1;
    }
@@ -865,7 +865,7 @@ void
 ARMul_UndefInstr (ARMul_State * state, ARMword instr)
 {
    std::string disasm = ARM_Disasm::Disassemble(state->pc, instr);
-    ERROR_LOG(ARM11, "Undefined instruction!! Disasm: %s Opcode: 0x%x", disasm.c_str(), instr);
+    LOG_ERROR(Core_ARM11, "Undefined instruction!! Disasm: %s Opcode: 0x%x", disasm.c_str(), instr);
    ARMul_Abort (state, ARMul_UndefinedInstrV);
 }
diff --git a/src/core/arm/interpreter/thumbemu.cpp b/src/core/arm/interpreter/thumbemu.cpp
index f7f11f714..9cf80672d 100644
--- a/src/core/arm/interpreter/thumbemu.cpp
+++ b/src/core/arm/interpreter/thumbemu.cpp
@@ -467,7 +467,7 @@ ARMul_ThumbDecode (
                                (state->Reg[14] + ((tinstr & 0x07FF) << 1)) & 0xFFFFFFFC;
                        state->Reg[14] = (tmp | 1);
                        CLEART;
-                        DEBUG_LOG(ARM11, "In %s, After  BLX(1),LR=0x%x,PC=0x%x, offset=0x%x\n", __FUNCTION__, state->Reg[14], state->Reg[15], (tinstr &0x7FF) << 1);
+                        LOG_DEBUG(Core_ARM11, "After  BLX(1),LR=0x%x,PC=0x%x, offset=0x%x", state->Reg[14], state->Reg[15], (tinstr &0x7FF) << 1);
                        valid = t_branch;
                        FLUSHPIPE;
                }
diff --git a/src/core/arm/skyeye_common/armcpu.h b/src/core/arm/skyeye_common/armcpu.h
index 3a029f0e7..2b756c5bc 100644
--- a/src/core/arm/skyeye_common/armcpu.h
+++ b/src/core/arm/skyeye_common/armcpu.h
@@ -24,8 +24,6 @@
 #include <stddef.h>
 #include <stdio.h>
-#include "common/thread.h"
 #include "core/arm/skyeye_common/armdefs.h"
 typedef struct ARM_CPU_State_s {
diff --git a/src/core/arm/skyeye_common/armdefs.h b/src/core/arm/skyeye_common/armdefs.h
index 8e71948c6..28a4a0db4 100644
--- a/src/core/arm/skyeye_common/armdefs.h
+++ b/src/core/arm/skyeye_common/armdefs.h
@@ -18,38 +18,26 @@
 #ifndef _ARMDEFS_H_
 #define _ARMDEFS_H_
-#include <stdio.h>
+#include <cerrno>
-#include <stdlib.h>
+#include <csignal>
-#include <errno.h>
+#include <cstdio>
+#include <cstdlib>
-#include "common/platform.h"
+#include <cstring>
+#include <fcntl.h>
-//teawater add for arm2x86 2005.02.14-------------------------------------------
+#include <sys/stat.h>
-// koodailar remove it for mingw 2005.12.18----------------
+#include <sys/types.h>
-//anthonylee modify it for portable 2007.01.30
-//#include "portable/mman.h"
 #include "arm_regformat.h"
+#include "common/common_types.h"
 #include "common/platform.h"
+#include "core/arm/skyeye_common/armmmu.h"
 #include "core/arm/skyeye_common/skyeye_defs.h"
-//AJ2D--------------------------------------------------------------------------
-//teawater add for arm2x86 2005.07.03-------------------------------------------
-#include <sys/types.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
 #if EMU_PLATFORM == PLATFORM_LINUX
+#include <sys/time.h>
 #include <unistd.h>
 #endif
-#include <errno.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-//#include <memory_space.h>
-//AJ2D--------------------------------------------------------------------------
 #if 0
 #if 0
 #define DIFF_STATE 1
@@ -70,25 +58,8 @@
 #define LOWHIGH 1
 #define HIGHLOW 2
-//teawater add DBCT_TEST_SPEED 2005.10.04---------------------------------------
-#include <signal.h>
-#include "common/platform.h"
-#if EMU_PLATFORM == PLATFORM_LINUX
-#include <sys/time.h>
-#endif
 //#define DBCT_TEST_SPEED
 #define DBCT_TEST_SPEED_SEC    10
-//AJ2D--------------------------------------------------------------------------
-//teawater add compile switch for DBCT GDB RSP function 2005.10.21--------------
-//#define DBCT_GDBRSP
-//AJ2D--------------------------------------------------------------------------
-//#include <skyeye_defs.h>
-//#include <skyeye_types.h>
 #define ARM_BYTE_TYPE         0
 #define ARM_HALFWORD_TYPE     1
@@ -103,71 +74,34 @@
 typedef char *VoidStar;
 #endif
-typedef unsigned long long ARMdword;    /* must be 64 bits wide */
+typedef u64 ARMdword;  // must be 64 bits wide
-typedef unsigned int ARMword;    /* must be 32 bits wide */
+typedef u32 ARMword;   // must be 32 bits wide
-typedef unsigned char ARMbyte;    /* must be 8 bits wide */
+typedef u16 ARMhword;  // must be 16 bits wide
-typedef unsigned short ARMhword;    /* must be 16 bits wide */
+typedef u8 ARMbyte;    // must be 8 bits wide
 typedef struct ARMul_State ARMul_State;
 typedef struct ARMul_io ARMul_io;
 typedef struct ARMul_Energy ARMul_Energy;
-//teawater add for arm2x86 2005.06.24-------------------------------------------
-#include <stdint.h>
-//AJ2D--------------------------------------------------------------------------
-/*
-//chy 2005-05-11
-#ifndef __CYGWIN__
-//teawater add for arm2x86 2005.02.14-------------------------------------------
-typedef unsigned char           uint8_t;
-typedef unsigned short          uint16_t;
-typedef unsigned int            u32;
-#if defined (__x86_64__)
-typedef unsigned long           uint64_t;
-#else
-typedef unsigned long long      uint64_t;
-#endif
-////AJ2D--------------------------------------------------------------------------
-#endif
-*/
-#include "core/arm/skyeye_common/armmmu.h"
+typedef unsigned ARMul_CPInits(ARMul_State* state);
-//#include "lcd/skyeye_lcd.h"
+typedef unsigned ARMul_CPExits(ARMul_State* state);
+typedef unsigned ARMul_LDCs(ARMul_State* state, unsigned type, ARMword instr, ARMword value);
+typedef unsigned ARMul_STCs(ARMul_State* state, unsigned type, ARMword instr, ARMword* value);
-//#include "skyeye.h"
+typedef unsigned ARMul_MRCs(ARMul_State* state, unsigned type, ARMword instr, ARMword* value);
-//#include "skyeye_device.h"
+typedef unsigned ARMul_MCRs(ARMul_State* state, unsigned type, ARMword instr, ARMword value);
-//#include "net/skyeye_net.h"
+typedef unsigned ARMul_MRRCs(ARMul_State* state, unsigned type, ARMword instr, ARMword* value1, ARMword* value2);
-//#include "skyeye_config.h"
+typedef unsigned ARMul_MCRRs(ARMul_State* state, unsigned type, ARMword instr, ARMword value1, ARMword value2);
+typedef unsigned ARMul_CDPs(ARMul_State* state, unsigned type, ARMword instr);
+typedef unsigned ARMul_CPReads(ARMul_State* state, unsigned reg, ARMword* value);
-typedef unsigned ARMul_CPInits (ARMul_State * state);
+typedef unsigned ARMul_CPWrites(ARMul_State* state, unsigned reg, ARMword value);
-typedef unsigned ARMul_CPExits (ARMul_State * state);
-typedef unsigned ARMul_LDCs (ARMul_State * state, unsigned type,
-                 ARMword instr, ARMword value);
-typedef unsigned ARMul_STCs (ARMul_State * state, unsigned type,
-                 ARMword instr, ARMword * value);
-typedef unsigned ARMul_MRCs (ARMul_State * state, unsigned type,
-                 ARMword instr, ARMword * value);
-typedef unsigned ARMul_MCRs (ARMul_State * state, unsigned type,
-                 ARMword instr, ARMword value);
-typedef unsigned ARMul_MRRCs (ARMul_State * state, unsigned type,
-                 ARMword instr, ARMword * value1, ARMword * value2);
-typedef unsigned ARMul_MCRRs (ARMul_State * state, unsigned type,
-                 ARMword instr, ARMword value1, ARMword value2);
-typedef unsigned ARMul_CDPs (ARMul_State * state, unsigned type,
-                 ARMword instr);
-typedef unsigned ARMul_CPReads (ARMul_State * state, unsigned reg,
-                ARMword * value);
-typedef unsigned ARMul_CPWrites (ARMul_State * state, unsigned reg,
-                 ARMword value);
 //added by ksh,2004-3-5
 struct ARMul_io
 {
-    ARMword *instr;        //to display the current interrupt state
+    ARMword *instr;      // to display the current interrupt state
-    ARMword *net_flag;    //to judge if network is enabled
+    ARMword *net_flag;   // to judge if network is enabled
-    ARMword *net_int;    //netcard interrupt
+    ARMword *net_int;    // netcard interrupt
    //ywc,2004-04-01
    ARMword *ts_int;
@@ -180,17 +114,17 @@ struct ARMul_io
 /* added by ksh,2004-11-26,some energy profiling */
 struct ARMul_Energy
 {
-    int energy_prof;    /* <tktan>  BUG200103282109 : for energy profiling */
+    int energy_prof;        /* <tktan>  BUG200103282109 : for energy profiling */
-    int enable_func_energy;    /* <tktan> BUG200105181702 */
+    int enable_func_energy; /* <tktan> BUG200105181702 */
    char *func_energy;
-    int func_display;    /* <tktan> BUG200103311509 : for function call display */
+    int func_display;       /* <tktan> BUG200103311509 : for function call display */
    int func_disp_start;    /* <tktan> BUG200104191428 : to start func profiling */
-    char *start_func;    /* <tktan> BUG200104191428 */
+    char *start_func;       /* <tktan> BUG200104191428 */
-    FILE *outfile;        /* <tktan> BUG200105201531 : direct console to file */
+    FILE *outfile;          /* <tktan> BUG200105201531 : direct console to file */
    long long tcycle, pcycle;
    float t_energy;
-    void *cur_task;        /* <tktan> BUG200103291737 */
+    void *cur_task;         /* <tktan> BUG200103291737 */
    long long t_mem_cycle, t_idle_cycle, t_uart_cycle;
    long long p_mem_cycle, p_idle_cycle, p_uart_cycle;
    long long p_io_update_tcycle;
@@ -203,13 +137,12 @@ struct ARMul_Energy
 typedef struct mem_bank
 {
-    ARMword (*read_byte) (ARMul_State * state, ARMword addr);
+    ARMword (*read_byte) (ARMul_State* state, ARMword addr);
-    void (*write_byte) (ARMul_State * state, ARMword addr, ARMword data);
+    void (*write_byte) (ARMul_State* state, ARMword addr, ARMword data);
-      ARMword (*read_halfword) (ARMul_State * state, ARMword addr);
+    ARMword (*read_halfword) (ARMul_State* state, ARMword addr);
-    void (*write_halfword) (ARMul_State * state, ARMword addr,
+    void (*write_halfword) (ARMul_State* state, ARMword addr, ARMword data);
-                ARMword data);
+    ARMword (*read_word) (ARMul_State* state, ARMword addr);
-      ARMword (*read_word) (ARMul_State * state, ARMword addr);
+    void (*write_word) (ARMul_State* state, ARMword addr, ARMword data);
-    void (*write_word) (ARMul_State * state, ARMword addr, ARMword data);
    unsigned int addr, len;
    char filename[MAX_STR];
    unsigned type;        //chy 2003-09-21: maybe io,ram,rom
@@ -224,24 +157,24 @@ typedef struct
 #define VFP_REG_NUM 64
 struct ARMul_State
 {
-    ARMword Emulate;    /* to start and stop emulation */
+    ARMword Emulate;       /* to start and stop emulation */
-    unsigned EndCondition;    /* reason for stopping */
+    unsigned EndCondition; /* reason for stopping */
    unsigned ErrorCode;    /* type of illegal instruction */
    /* Order of the following register should not be modified */
-    ARMword Reg[16];    /* the current register file */
+    ARMword Reg[16];      /* the current register file */
-    ARMword Cpsr;        /* the current psr */
+    ARMword Cpsr;         /* the current psr */
    ARMword Spsr_copy;
    ARMword phys_pc;
    ARMword Reg_usr[2];
-    ARMword Reg_svc[2]; /* R13_SVC R14_SVC */
+    ARMword Reg_svc[2];   /* R13_SVC R14_SVC */
    ARMword Reg_abort[2]; /* R13_ABORT R14_ABORT */
    ARMword Reg_undef[2]; /* R13 UNDEF R14 UNDEF */
    ARMword Reg_irq[2];   /* R13_IRQ R14_IRQ */
    ARMword Reg_firq[7];  /* R8---R14 FIRQ */
-    ARMword Spsr[7];    /* the exception psr's */
+    ARMword Spsr[7];      /* the exception psr's */
-    ARMword Mode;        /* the current mode */
+    ARMword Mode;         /* the current mode */
-    ARMword Bank;        /* the current register bank */
+    ARMword Bank;         /* the current register bank */
    ARMword exclusive_tag;
    ARMword exclusive_state;
    ARMword exclusive_result;
@@ -281,38 +214,39 @@ struct ARMul_State
    ARMword currentexaddr;
    ARMword currentexval;
+    ARMword currentexvald;
    ARMword servaddr;
    unsigned NextInstr;
-    unsigned VectorCatch;    /* caught exception mask */
+    unsigned VectorCatch;                   /* caught exception mask */
-    unsigned CallDebug;    /* set to call the debugger */
+    unsigned CallDebug;                     /* set to call the debugger */
-    unsigned CanWatch;    /* set by memory interface if its willing to suffer the
+    unsigned CanWatch;                      /* set by memory interface if its willing to suffer the
-                   overhead of checking for watchpoints on each memory
+                                               overhead of checking for watchpoints on each memory
-                   access */
+                                               access */
    unsigned int StopHandle;
-    char *CommandLine;    /* Command Line from ARMsd */
+    char *CommandLine;                      /* Command Line from ARMsd */
-    ARMul_CPInits *CPInit[16];    /* coprocessor initialisers */
+    ARMul_CPInits *CPInit[16];              /* coprocessor initialisers */
-    ARMul_CPExits *CPExit[16];    /* coprocessor finalisers */
+    ARMul_CPExits *CPExit[16];              /* coprocessor finalisers */
-    ARMul_LDCs *LDC[16];    /* LDC instruction */
+    ARMul_LDCs *LDC[16];                    /* LDC instruction */
-    ARMul_STCs *STC[16];    /* STC instruction */
+    ARMul_STCs *STC[16];                    /* STC instruction */
-    ARMul_MRCs *MRC[16];    /* MRC instruction */
+    ARMul_MRCs *MRC[16];                    /* MRC instruction */
-    ARMul_MCRs *MCR[16];    /* MCR instruction */
+    ARMul_MCRs *MCR[16];                    /* MCR instruction */
-    ARMul_MRRCs *MRRC[16];    /* MRRC instruction */
+    ARMul_MRRCs *MRRC[16];                  /* MRRC instruction */
-    ARMul_MCRRs *MCRR[16];    /* MCRR instruction */
+    ARMul_MCRRs *MCRR[16];                  /* MCRR instruction */
-    ARMul_CDPs *CDP[16];    /* CDP instruction */
+    ARMul_CDPs *CDP[16];                    /* CDP instruction */
-    ARMul_CPReads *CPRead[16];    /* Read CP register */
+    ARMul_CPReads *CPRead[16];              /* Read CP register */
-    ARMul_CPWrites *CPWrite[16];    /* Write CP register */
+    ARMul_CPWrites *CPWrite[16];            /* Write CP register */
-    unsigned char *CPData[16];    /* Coprocessor data */
+    unsigned char *CPData[16];              /* Coprocessor data */
    unsigned char const *CPRegWords[16];    /* map of coprocessor register sizes */
-    unsigned EventSet;    /* the number of events in the queue */
+    unsigned EventSet;                      /* the number of events in the queue */
-    unsigned int Now;    /* time to the nearest cycle */
+    unsigned int Now;                       /* time to the nearest cycle */
-    struct EventNode **EventPtr;    /* the event list */
+    struct EventNode **EventPtr;            /* the event list */
-    unsigned Debug;        /* show instructions as they are executed */
+    unsigned Debug;                         /* show instructions as they are executed */
-    unsigned NresetSig;    /* reset the processor */
+    unsigned NresetSig;                     /* reset the processor */
    unsigned NfiqSig;
    unsigned NirqSig;
@@ -356,12 +290,12 @@ So, if lateabtSig=1, then it means Late Abort Model(Base Updated Abort Model)
 */
    unsigned lateabtSig;
-    ARMword Vector;        /* synthesize aborts in cycle modes */
+    ARMword Vector;              /* synthesize aborts in cycle modes */
-    ARMword Aborted;    /* sticky flag for aborts */
+    ARMword Aborted;             /* sticky flag for aborts */
-    ARMword Reseted;    /* sticky flag for Reset */
+    ARMword Reseted;             /* sticky flag for Reset */
    ARMword Inted, LastInted;    /* sticky flags for interrupts */
-    ARMword Base;        /* extra hand for base writeback */
+    ARMword Base;                /* extra hand for base writeback */
-    ARMword AbortAddr;    /* to keep track of Prefetch aborts */
+    ARMword AbortAddr;           /* to keep track of Prefetch aborts */
    const struct Dbg_HostosInterface *hostif;
@@ -378,7 +312,7 @@ So, if lateabtSig=1, then it means Late Abort Model(Base Updated Abort Model)
    //chy: 2003-08-11, for different arm core type
    unsigned is_v4;        /* Are we emulating a v4 architecture (or higher) ?  */
    unsigned is_v5;        /* Are we emulating a v5 architecture ?  */
-    unsigned is_v5e;    /* Are we emulating a v5e architecture ?  */
+    unsigned is_v5e;       /* Are we emulating a v5e architecture ?  */
    unsigned is_v6;        /* Are we emulating a v6 architecture ?  */
    unsigned is_v7;        /* Are we emulating a v7 architecture ?  */
    unsigned is_XScale;    /* Are we emulating an XScale architecture ?  */
@@ -387,51 +321,43 @@ So, if lateabtSig=1, then it means Late Abort Model(Base Updated Abort Model)
    //chy 2005-09-19
    unsigned is_pxa27x;    /* Are we emulating a Intel PXA27x co-processor ?  */
    //chy: seems only used in xscale's CP14
-    unsigned int LastTime;    /* Value of last call to ARMul_Time() */
+    unsigned int LastTime; /* Value of last call to ARMul_Time() */
    ARMword CP14R0_CCD;    /* used to count 64 clock cycles with CP14 R0 bit 3 set */
-//added by ksh:for handle different machs io 2004-3-5
+    //added by ksh:for handle different machs io 2004-3-5
    ARMul_io mach_io;
-/*added by ksh,2004-11-26,some energy profiling*/
+    /*added by ksh,2004-11-26,some energy profiling*/
    ARMul_Energy energy;
-//teawater add for next_dis 2004.10.27-----------------------
+    //teawater add for next_dis 2004.10.27-----------------------
    int disassemble;
-//AJ2D------------------------------------------
-//teawater add for arm2x86 2005.02.15-------------------------------------------
+    //teawater add for arm2x86 2005.02.15-------------------------------------------
    u32 trap;
    u32 tea_break_addr;
    u32 tea_break_ok;
    int tea_pc;
-//AJ2D--------------------------------------------------------------------------
-//teawater add for arm2x86 2005.07.03-------------------------------------------
-    /*
-     * 2007-01-24 removed the term-io functions by Anthony Lee,
-     * moved to "device/uart/skyeye_uart_stdio.c".
-     */
-//AJ2D--------------------------------------------------------------------------
+    //teawater add for arm2x86 2005.07.05-------------------------------------------
-//teawater add for arm2x86 2005.07.05-------------------------------------------
    //arm_arm A2-18
    int abort_model;    //0 Base Restored Abort Model, 1 the Early Abort Model, 2 Base Updated Abort Model 
-//AJ2D--------------------------------------------------------------------------
-//teawater change for return if running tb dirty 2005.07.09---------------------
+    //teawater change for return if running tb dirty 2005.07.09---------------------
    void *tb_now;
-//AJ2D--------------------------------------------------------------------------
-//teawater add for record reg value to ./reg.txt 2005.07.10---------------------
+    //teawater add for record reg value to ./reg.txt 2005.07.10---------------------
    FILE *tea_reg_fd;
-//AJ2D--------------------------------------------------------------------------
-/*added by ksh in 2005-10-1*/
+    /*added by ksh in 2005-10-1*/
    cpu_config_t *cpu;
    //mem_config_t *mem_bank;
-/* added LPC remap function */
+    /* added LPC remap function */
    int vector_remap_flag;
    u32 vector_remap_addr;
    u32 vector_remap_size;
@@ -486,17 +412,14 @@ typedef ARMul_State arm_core_t;
 #define ARM_Debug_Prop   0x10
 #define ARM_Isync_Prop   ARM_Debug_Prop
 #define ARM_Lock_Prop    0x20
-//chy 2003-08-11 
 #define ARM_v4_Prop      0x40
 #define ARM_v5_Prop      0x80
-/*jeff.du 2010-08-05 */
 #define ARM_v6_Prop      0xc0
 #define ARM_v5e_Prop     0x100
 #define ARM_XScale_Prop  0x200
 #define ARM_ep9312_Prop  0x400
 #define ARM_iWMMXt_Prop  0x800
-//chy 2005-09-19
 #define ARM_PXA27X_Prop  0x1000
 #define ARM_v7_Prop      0x2000
@@ -591,47 +514,44 @@ typedef ARMul_State arm_core_t;
 #ifdef __cplusplus
 extern "C" {
 #endif
-extern void ARMul_EmulateInit (void);
+extern void ARMul_EmulateInit();
-extern void ARMul_Reset (ARMul_State * state);
+extern void ARMul_Reset(ARMul_State* state);
 #ifdef __cplusplus
    }
 #endif
-extern ARMul_State *ARMul_NewState (ARMul_State * state);
+extern ARMul_State *ARMul_NewState(ARMul_State* state);
-extern ARMword ARMul_DoProg (ARMul_State * state);
+extern ARMword ARMul_DoProg(ARMul_State* state);
-extern ARMword ARMul_DoInstr (ARMul_State * state);
+extern ARMword ARMul_DoInstr(ARMul_State* state);
 /***************************************************************************\
 *                Definitons of things for event handling                    *
 \***************************************************************************/
-extern void ARMul_ScheduleEvent (ARMul_State * state, unsigned int delay,
+extern void ARMul_ScheduleEvent(ARMul_State* state, unsigned int delay, unsigned(*func) ());
-                 unsigned (*func) ());
+extern void ARMul_EnvokeEvent(ARMul_State* state);
-extern void ARMul_EnvokeEvent (ARMul_State * state);
+extern unsigned int ARMul_Time(ARMul_State* state);
-extern unsigned int ARMul_Time (ARMul_State * state);
 /***************************************************************************\
 *                          Useful support routines                          *
 \***************************************************************************/
-extern ARMword ARMul_GetReg (ARMul_State * state, unsigned mode,
+extern ARMword ARMul_GetReg (ARMul_State* state, unsigned mode, unsigned reg);
-                 unsigned reg);
+extern void ARMul_SetReg (ARMul_State* state, unsigned mode, unsigned reg, ARMword value);
-extern void ARMul_SetReg (ARMul_State * state, unsigned mode, unsigned reg,
+extern ARMword ARMul_GetPC(ARMul_State* state);
-              ARMword value);
+extern ARMword ARMul_GetNextPC(ARMul_State* state);
-extern ARMword ARMul_GetPC (ARMul_State * state);
+extern void ARMul_SetPC(ARMul_State* state, ARMword value);
-extern ARMword ARMul_GetNextPC (ARMul_State * state);
+extern ARMword ARMul_GetR15(ARMul_State* state);
-extern void ARMul_SetPC (ARMul_State * state, ARMword value);
+extern void ARMul_SetR15(ARMul_State* state, ARMword value);
-extern ARMword ARMul_GetR15 (ARMul_State * state);
-extern void ARMul_SetR15 (ARMul_State * state, ARMword value);
+extern ARMword ARMul_GetCPSR(ARMul_State* state);
+extern void ARMul_SetCPSR(ARMul_State* state, ARMword value);
-extern ARMword ARMul_GetCPSR (ARMul_State * state);
+extern ARMword ARMul_GetSPSR(ARMul_State* state, ARMword mode);
-extern void ARMul_SetCPSR (ARMul_State * state, ARMword value);
+extern void ARMul_SetSPSR(ARMul_State* state, ARMword mode, ARMword value);
-extern ARMword ARMul_GetSPSR (ARMul_State * state, ARMword mode);
-extern void ARMul_SetSPSR (ARMul_State * state, ARMword mode, ARMword value);
 /***************************************************************************\
 *                  Definitons of things to handle aborts                    *
 \***************************************************************************/
-extern void ARMul_Abort (ARMul_State * state, ARMword address);
+extern void ARMul_Abort(ARMul_State* state, ARMword address);
 #ifdef MODET
 #define ARMul_ABORTWORD (state->TFlag ? 0xefffdfff : 0xefffffff)    /* SWI -1 */
 #define ARMul_PREFETCHABORT(address) if (state->AbortAddr == 1) \
@@ -649,54 +569,40 @@ extern void ARMul_Abort (ARMul_State * state, ARMword address);
 *              Definitons of things in the memory interface                 *
 \***************************************************************************/
-extern unsigned ARMul_MemoryInit (ARMul_State * state,
+extern unsigned ARMul_MemoryInit(ARMul_State* state, unsigned int initmemsize);
-                  unsigned int initmemsize);
+extern void ARMul_MemoryExit(ARMul_State* state);
-extern void ARMul_MemoryExit (ARMul_State * state);
-extern ARMword ARMul_LoadInstrS (ARMul_State * state, ARMword address,
+extern ARMword ARMul_LoadInstrS(ARMul_State* state, ARMword address, ARMword isize);
-                 ARMword isize);
+extern ARMword ARMul_LoadInstrN(ARMul_State* state, ARMword address, ARMword isize);
-extern ARMword ARMul_LoadInstrN (ARMul_State * state, ARMword address,
-                 ARMword isize);
 #ifdef __cplusplus
 extern "C" {
 #endif
-extern ARMword ARMul_ReLoadInstr (ARMul_State * state, ARMword address,
+extern ARMword ARMul_ReLoadInstr(ARMul_State* state, ARMword address, ARMword isize);
-                  ARMword isize);
 #ifdef __cplusplus
    }
 #endif
-extern ARMword ARMul_LoadWordS (ARMul_State * state, ARMword address);
+extern ARMword ARMul_LoadWordS(ARMul_State* state, ARMword address);
-extern ARMword ARMul_LoadWordN (ARMul_State * state, ARMword address);
+extern ARMword ARMul_LoadWordN(ARMul_State* state, ARMword address);
-extern ARMword ARMul_LoadHalfWord (ARMul_State * state, ARMword address);
+extern ARMword ARMul_LoadHalfWord(ARMul_State* state, ARMword address);
-extern ARMword ARMul_LoadByte (ARMul_State * state, ARMword address);
+extern ARMword ARMul_LoadByte(ARMul_State* state, ARMword address);
-extern void ARMul_StoreWordS (ARMul_State * state, ARMword address,
+extern void ARMul_StoreWordS(ARMul_State* state, ARMword address, ARMword data);
-                  ARMword data);
+extern void ARMul_StoreWordN(ARMul_State* state, ARMword address, ARMword data);
-extern void ARMul_StoreWordN (ARMul_State * state, ARMword address,
+extern void ARMul_StoreHalfWord(ARMul_State* state, ARMword address, ARMword data);
-                  ARMword data);
+extern void ARMul_StoreByte(ARMul_State* state, ARMword address, ARMword data);
-extern void ARMul_StoreHalfWord (ARMul_State * state, ARMword address,
-                 ARMword data);
+extern ARMword ARMul_SwapWord(ARMul_State* state, ARMword address, ARMword data);
-extern void ARMul_StoreByte (ARMul_State * state, ARMword address,
+extern ARMword ARMul_SwapByte(ARMul_State* state, ARMword address, ARMword data);
-                 ARMword data);
+extern void ARMul_Icycles(ARMul_State* state, unsigned number, ARMword address);
-extern ARMword ARMul_SwapWord (ARMul_State * state, ARMword address,
+extern void ARMul_Ccycles(ARMul_State* state, unsigned number, ARMword address);
-                   ARMword data);
-extern ARMword ARMul_SwapByte (ARMul_State * state, ARMword address,
+extern ARMword ARMul_ReadWord(ARMul_State* state, ARMword address);
-                   ARMword data);
+extern ARMword ARMul_ReadByte(ARMul_State* state, ARMword address);
+extern void ARMul_WriteWord(ARMul_State* state, ARMword address, ARMword data);
-extern void ARMul_Icycles (ARMul_State * state, unsigned number,
+extern void ARMul_WriteByte(ARMul_State* state, ARMword address, ARMword data);
-               ARMword address);
-extern void ARMul_Ccycles (ARMul_State * state, unsigned number,
+extern ARMword ARMul_MemAccess(ARMul_State* state, ARMword, ARMword,
-               ARMword address);
-extern ARMword ARMul_ReadWord (ARMul_State * state, ARMword address);
-extern ARMword ARMul_ReadByte (ARMul_State * state, ARMword address);
-extern void ARMul_WriteWord (ARMul_State * state, ARMword address,
-                 ARMword data);
-extern void ARMul_WriteByte (ARMul_State * state, ARMword address,
-                 ARMword data);
-extern ARMword ARMul_MemAccess (ARMul_State * state, ARMword, ARMword,
                ARMword, ARMword, ARMword, ARMword, ARMword,
                ARMword, ARMword, ARMword);
@@ -739,82 +645,58 @@ extern ARMword ARMul_MemAccess (ARMul_State * state, ARMword, ARMword,
 #define ARMul_CP15_DBCON_E1     0x000c
 #define ARMul_CP15_DBCON_E0     0x0003
-extern unsigned ARMul_CoProInit (ARMul_State * state);
+extern unsigned ARMul_CoProInit(ARMul_State* state);
-extern void ARMul_CoProExit (ARMul_State * state);
+extern void ARMul_CoProExit(ARMul_State* state);
-extern void ARMul_CoProAttach (ARMul_State * state, unsigned number,
+extern void ARMul_CoProAttach (ARMul_State* state, unsigned number,
-                   ARMul_CPInits * init, ARMul_CPExits * exit,
+                   ARMul_CPInits* init, ARMul_CPExits* exit,
-                   ARMul_LDCs * ldc, ARMul_STCs * stc,
+                   ARMul_LDCs* ldc, ARMul_STCs* stc,
-                   ARMul_MRCs * mrc, ARMul_MCRs * mcr,
+                   ARMul_MRCs* mrc, ARMul_MCRs* mcr,
-                   ARMul_MRRCs * mrrc, ARMul_MCRRs * mcrr,
+                   ARMul_MRRCs* mrrc, ARMul_MCRRs* mcrr,
-                   ARMul_CDPs * cdp,
+                   ARMul_CDPs* cdp,
-                   ARMul_CPReads * read, ARMul_CPWrites * write);
+                   ARMul_CPReads* read, ARMul_CPWrites* write);
-extern void ARMul_CoProDetach (ARMul_State * state, unsigned number);
+extern void ARMul_CoProDetach(ARMul_State* state, unsigned number);
 /***************************************************************************\
 *               Definitons of things in the host environment                *
 \***************************************************************************/
-extern unsigned ARMul_OSInit (ARMul_State * state);
+extern unsigned ARMul_OSInit(ARMul_State* state);
-extern void ARMul_OSExit (ARMul_State * state);
+extern void ARMul_OSExit(ARMul_State* state);
 #ifdef __cplusplus
 extern "C" {
 #endif
-extern unsigned ARMul_OSHandleSWI (ARMul_State * state, ARMword number);
+extern unsigned ARMul_OSHandleSWI(ARMul_State* state, ARMword number);
 #ifdef __cplusplus
 }
 #endif
-extern ARMword ARMul_OSLastErrorP (ARMul_State * state);
+extern ARMword ARMul_OSLastErrorP(ARMul_State* state);
-extern ARMword ARMul_Debug (ARMul_State * state, ARMword pc, ARMword instr);
+extern ARMword ARMul_Debug(ARMul_State* state, ARMword pc, ARMword instr);
-extern unsigned ARMul_OSException (ARMul_State * state, ARMword vector,
+extern unsigned ARMul_OSException(ARMul_State* state, ARMword vector, ARMword pc);
-                   ARMword pc);
 extern int rdi_log;
-/***************************************************************************\
+enum ConditionCode {
-*                            Host-dependent stuff                           *
+    EQ = 0,
-\***************************************************************************/
+    NE = 1,
+    CS = 2,
-#ifdef macintosh
+    CC = 3,
-pascal void SpinCursor (short increment);    /* copied from CursorCtl.h */
+    MI = 4,
-# define HOURGLASS           SpinCursor( 1 )
+    PL = 5,
-# define HOURGLASS_RATE      1023    /* 2^n - 1 */
+    VS = 6,
-#endif
+    VC = 7,
+    HI = 8,
-//teawater add for arm2x86 2005.02.14-------------------------------------------
+    LS = 9,
-/*ywc 2005-03-31*/
+    GE = 10,
-/*
+    LT = 11,
-#include "arm2x86.h"
+    GT = 12,
-#include "arm2x86_dp.h"
+    LE = 13,
-#include "arm2x86_movl.h"
+    AL = 14,
-#include "arm2x86_psr.h"
+    NV = 15,
-#include "arm2x86_shift.h"
+};
-#include "arm2x86_mem.h"
-#include "arm2x86_mul.h"
-#include "arm2x86_test.h"
-#include "arm2x86_other.h"
-#include "list.h"
-#include "tb.h"
-*/
-#define EQ 0
-#define NE 1
-#define CS 2
-#define CC 3
-#define MI 4
-#define PL 5
-#define VS 6
-#define VC 7
-#define HI 8
-#define LS 9
-#define GE 10
-#define LT 11
-#define GT 12
-#define LE 13
-#define AL 14
-#define NV 15
 #ifndef NFLAG
 #define NFLAG    state->NFlag
@@ -849,32 +731,16 @@ pascal void SpinCursor (short increment);    /* copied from CursorCtl.h */
 #define ZBIT_SHIFT    30
 #define CBIT_SHIFT    29
 #define VBIT_SHIFT    28
-#ifdef DBCT
-//teawater change for local tb branch directly jump 2005.10.18------------------
-#include "dbct/list.h"
-#include "dbct/arm2x86.h"
-#include "dbct/arm2x86_dp.h"
-#include "dbct/arm2x86_movl.h"
-#include "dbct/arm2x86_psr.h"
-#include "dbct/arm2x86_shift.h"
-#include "dbct/arm2x86_mem.h"
-#include "dbct/arm2x86_mul.h"
-#include "dbct/arm2x86_test.h"
-#include "dbct/arm2x86_other.h"
-#include "dbct/arm2x86_coproc.h"
-#include "dbct/tb.h"
-#endif
-//AJ2D--------------------------------------------------------------------------
-//AJ2D--------------------------------------------------------------------------
 #define SKYEYE_OUTREGS(fd) { fprintf ((fd), "R %x,%x,%x,%x,%x,%x,%x,%x,%x,%x,%x,%x,%x,%x,%x,%x,C %x,S %x,%x,%x,%x,%x,%x,%x,M %x,B %x,E %x,I %x,P %x,T %x,L %x,D %x,",\
                         state->Reg[0],state->Reg[1],state->Reg[2],state->Reg[3], \
                         state->Reg[4],state->Reg[5],state->Reg[6],state->Reg[7], \
                         state->Reg[8],state->Reg[9],state->Reg[10],state->Reg[11], \
                         state->Reg[12],state->Reg[13],state->Reg[14],state->Reg[15], \
-             state->Cpsr,   state->Spsr[0], state->Spsr[1], state->Spsr[2],\
+                         state->Cpsr,   state->Spsr[0], state->Spsr[1], state->Spsr[2],\
                         state->Spsr[3],state->Spsr[4], state->Spsr[5], state->Spsr[6],\
-             state->Mode,state->Bank,state->ErrorCode,state->instr,state->pc,\
+                         state->Mode,state->Bank,state->ErrorCode,state->instr,state->pc,\
-             state->temp,state->loaded,state->decoded);}
+                         state->temp,state->loaded,state->decoded);}
 #define SKYEYE_OUTMOREREGS(fd) { fprintf ((fd),"\
 RUs %x,%x,%x,%x,%x,%x,%x,%x,%x,%x,%x,%x,%x,%x,%x,%x,\
@@ -912,17 +778,17 @@ RUn %x,%x,%x,%x,%x,%x,%x,%x,%x,%x,%x,%x,%x,%x,%x,%x\n",\
 #define SA1110        0x6901b110
 #define SA1100        0x4401a100
-#define PXA250          0x69052100
+#define PXA250        0x69052100
-#define PXA270           0x69054110
+#define PXA270        0x69054110
-//#define PXA250              0x69052903
+//#define PXA250      0x69052903
 // 0x69052903;  //PXA250 B1 from intel 278522-001.pdf
-extern void ARMul_UndefInstr (ARMul_State *, ARMword);
+extern void ARMul_UndefInstr(ARMul_State*, ARMword);
-extern void ARMul_FixCPSR (ARMul_State *, ARMword, ARMword);
+extern void ARMul_FixCPSR(ARMul_State*, ARMword, ARMword);
-extern void ARMul_FixSPSR (ARMul_State *, ARMword, ARMword);
+extern void ARMul_FixSPSR(ARMul_State*, ARMword, ARMword);
-extern void ARMul_ConsolePrint (ARMul_State *, const char *, ...);
+extern void ARMul_ConsolePrint(ARMul_State*, const char*, ...);
-extern void ARMul_SelectProcessor (ARMul_State *, unsigned);
+extern void ARMul_SelectProcessor(ARMul_State*, unsigned);
 #define DIFF_LOG 0
 #define SAVE_LOG 0
diff --git a/src/core/arm/skyeye_common/armemu.h b/src/core/arm/skyeye_common/armemu.h
index c0f0270fe..7f7c0e682 100644
--- a/src/core/arm/skyeye_common/armemu.h
+++ b/src/core/arm/skyeye_common/armemu.h
@@ -23,26 +23,6 @@
 //extern ARMword isize;
-#define DEBUG(...) DEBUG_LOG(ARM11, __VA_ARGS__)
-/* Condition code values.  */
-#define EQ 0
-#define NE 1
-#define CS 2
-#define CC 3
-#define MI 4
-#define PL 5
-#define VS 6
-#define VC 7
-#define HI 8
-#define LS 9
-#define GE 10
-#define LT 11
-#define GT 12
-#define LE 13
-#define AL 14
-#define NV 15
 /* Shift Opcodes.  */
 #define LSL 0
 #define LSR 1
@@ -503,7 +483,7 @@ tdstate;
 * out-of-updated with the newer ISA.
 * -- Michael.Kang
 ********************************************************************************/
-#define UNDEF_WARNING WARN_LOG(ARM11, "undefined or unpredicted behavior for arm instruction.\n");
+#define UNDEF_WARNING LOG_WARNING(Core_ARM11, "undefined or unpredicted behavior for arm instruction.");
 /* Macros to scrutinize instructions.  */
 #define UNDEF_Test UNDEF_WARNING
diff --git a/src/core/arm/skyeye_common/vfp/vfpsingle.cpp b/src/core/arm/skyeye_common/vfp/vfpsingle.cpp
index 07d0c1f44..6c33d8b78 100644
--- a/src/core/arm/skyeye_common/vfp/vfpsingle.cpp
+++ b/src/core/arm/skyeye_common/vfp/vfpsingle.cpp
@@ -522,8 +522,7 @@ static s64 vfp_single_to_doubleintern(ARMul_State* state, s32 m, u32 fpscr) //ic
        if (tm == VFP_QNAN)
            vdd.significand |= VFP_DOUBLE_SIGNIFICAND_QNAN;
        goto pack_nan;
-    }
+    } else if (tm & VFP_ZERO)
-    else if (tm & VFP_ZERO)
        vdd.exponent = 0;
    else
        vdd.exponent = vsm.exponent + (1023 - 127);
@@ -615,12 +614,12 @@ static u32 vfp_single_ftoui(ARMul_State* state, int sd, int unused, s32 m, u32 f
        exceptions |= FPSCR_IDC;
    if (tm & VFP_NAN)
-        vsm.sign = 0;
+        vsm.sign = 1;
    if (vsm.exponent >= 127 + 32) {
        d = vsm.sign ? 0 : 0xffffffff;
        exceptions = FPSCR_IOC;
-    } else if (vsm.exponent >= 127 - 1) {
+    } else if (vsm.exponent >= 127) {
        int shift = 127 + 31 - vsm.exponent;
        u32 rem, incr = 0;
@@ -705,7 +704,7 @@ static u32 vfp_single_ftosi(ARMul_State* state, int sd, int unused, s32 m, u32 f
        if (vsm.sign)
            d = ~d;
        exceptions |= FPSCR_IOC;
-    } else if (vsm.exponent >= 127 - 1) {
+    } else if (vsm.exponent >= 127) {
        int shift = 127 + 31 - vsm.exponent;
        u32 rem, incr = 0;
@@ -1149,7 +1148,10 @@ static u32 vfp_single_fsub(ARMul_State* state, int sd, int sn, s32 m, u32 fpscr)
    /*
     * Subtraction is addition with one sign inverted.
     */
-    return vfp_single_fadd(state, sd, sn, vfp_single_packed_negate(m), fpscr);
+    if (m != 0x7FC00000) // Only negate if m isn't NaN.
+        m = vfp_single_packed_negate(m);
+    return vfp_single_fadd(state, sd, sn, m, fpscr);
 }
 /*
diff --git a/src/core/core.cpp b/src/core/core.cpp
index 25c78d33c..64de0cbba 100644
--- a/src/core/core.cpp
+++ b/src/core/core.cpp
@@ -16,10 +16,10 @@
 namespace Core {
-u64             g_last_ticks    = 0;        ///< Last CPU ticks
+static u64         last_ticks = 0;        ///< Last CPU ticks
-ARM_Disasm*     g_disasm        = nullptr;  ///< ARM disassembler
+static ARM_Disasm* disasm     = nullptr;  ///< ARM disassembler
-ARM_Interface*  g_app_core      = nullptr;  ///< ARM11 application core
+ARM_Interface*     g_app_core = nullptr;  ///< ARM11 application core
-ARM_Interface*  g_sys_core      = nullptr;  ///< ARM11 system (OS) core
+ARM_Interface*     g_sys_core = nullptr;  ///< ARM11 system (OS) core
 /// Run the core CPU loop
 void RunLoop(int tight_loop) {
@@ -47,9 +47,9 @@ void Stop() {
 /// Initialize the core
 int Init() {
-    NOTICE_LOG(MASTER_LOG, "initialized OK");
+    LOG_DEBUG(Core, "initialized OK");
-    g_disasm = new ARM_Disasm();
+    disasm = new ARM_Disasm();
    g_sys_core = new ARM_Interpreter();
    switch (Settings::values.cpu_core) {
@@ -62,17 +62,17 @@ int Init() {
            break;
    }
-    g_last_ticks = Core::g_app_core->GetTicks();
+    last_ticks = Core::g_app_core->GetTicks();
    return 0;
 }
 void Shutdown() {
-    delete g_disasm;
+    delete disasm;
    delete g_app_core;
    delete g_sys_core;
-    NOTICE_LOG(MASTER_LOG, "shutdown OK");
+    LOG_DEBUG(Core, "shutdown OK");
 }
 } // namespace
diff --git a/src/core/core.h b/src/core/core.h
index 872dc0cd1..850bb0ab4 100644
--- a/src/core/core.h
+++ b/src/core/core.h
@@ -26,13 +26,13 @@ void Start();
 /**
 * Run the core CPU loop
- * This function loops for 100 instructions in the CPU before trying to update hardware. This is a
+ * This function runs the core for the specified number of CPU instructions before trying to update
- * little bit faster than SingleStep, and should be pretty much equivalent. The number of
+ * hardware. This is much faster than SingleStep (and should be equivalent), as the CPU is not
- * instructions chosen is fairly arbitrary, however a large number will more drastically affect the
+ * required to do a full dispatch with each instruction. NOTE: the number of instructions requested
- * frequency of GSP interrupts and likely break things. The point of this is to just loop in the CPU
+ * is not guaranteed to run, as this will be interrupted preemptively if a hardware update is
- * for more than 1 instruction to reduce overhead and make it a little bit faster...
+ * requested (e.g. on a thread switch).
 */
-void RunLoop(int tight_loop=100);
+void RunLoop(int tight_loop=1000);
 /// Step the CPU one instruction
 void SingleStep();
diff --git a/src/core/core_timing.cpp b/src/core/core_timing.cpp
index 0116cb376..1a0b2724a 100644
--- a/src/core/core_timing.cpp
+++ b/src/core/core_timing.cpp
@@ -41,7 +41,7 @@ struct BaseEvent
    s64 time;
    u64 userdata;
    int type;
-    //  Event *next;
+    // Event *next;
 };
 typedef LinkedListItem<BaseEvent> Event;
@@ -67,7 +67,7 @@ s64 idledCycles;
 static std::recursive_mutex externalEventSection;
 // Warning: not included in save state.
-void(*advanceCallback)(int cyclesExecuted) = NULL;
+void(*advanceCallback)(int cyclesExecuted) = nullptr;
 void SetClockFrequencyMHz(int cpuMhz)
 {
@@ -124,7 +124,7 @@ int RegisterEvent(const char *name, TimedCallback callback)
 void AntiCrashCallback(u64 userdata, int cyclesLate)
 {
-    ERROR_LOG(TIME, "Savestate broken: an unregistered event was called.");
+    LOG_CRITICAL(Core, "Savestate broken: an unregistered event was called.");
    Core::Halt("invalid timing events");
 }
@@ -176,7 +176,7 @@ void Shutdown()
 u64 GetTicks()
 {
-    ERROR_LOG(TIME, "Unimplemented function!");
+    LOG_ERROR(Core, "Unimplemented function!");
    return 0;
    //return (u64)globalTimer + slicelength - currentMIPS->downcount;
 }
@@ -231,7 +231,7 @@ void ClearPendingEvents()
 void AddEventToQueue(Event* ne)
 {
-    Event* prev = NULL;
+    Event* prev = nullptr;
    Event** pNext = &first;
    for (;;)
    {
@@ -249,7 +249,7 @@ void AddEventToQueue(Event* ne)
 // This must be run ONLY from within the cpu thread
 // cyclesIntoFuture may be VERY inaccurate if called from anything else
-// than Advance 
+// than Advance
 void ScheduleEvent(s64 cyclesIntoFuture, int event_type, u64 userdata)
 {
    Event *ne = GetNewEvent();
@@ -327,7 +327,7 @@ s64 UnscheduleThreadsafeEvent(int event_type, u64 userdata)
    }
    if (!tsFirst)
    {
-        tsLast = NULL;
+        tsLast = nullptr;
        return result;
    }
@@ -433,7 +433,7 @@ void RemoveThreadsafeEvent(int event_type)
    }
    if (!tsFirst)
    {
-        tsLast = NULL;
+        tsLast = nullptr;
        return;
    }
    Event *prev = tsFirst;
@@ -469,8 +469,8 @@ void ProcessFifoWaitEvents()
    {
        if (first->time <= globalTimer)
        {
-            //                  LOG(TIMER, "[Scheduler] %s               (%lld, %lld) ", 
+            //LOG(TIMER, "[Scheduler] %s (%lld, %lld) ",
-            //                          first->name ? first->name : "?", (u64)globalTimer, (u64)first->time);
+            //    first->name ? first->name : "?", (u64)globalTimer, (u64)first->time);
            Event* evt = first;
            first = first->next;
            event_types[evt->type].callback(evt->userdata, (int)(globalTimer - evt->time));
@@ -495,7 +495,7 @@ void MoveEvents()
        AddEventToQueue(tsFirst);
        tsFirst = next;
    }
-    tsLast = NULL;
+    tsLast = nullptr;
    // Move free events to threadsafe pool
    while (allocatedTsEvents > 0 && eventPool)
@@ -510,29 +510,29 @@ void MoveEvents()
 void Advance()
 {
-    ERROR_LOG(TIME, "Unimplemented function!");
+    LOG_ERROR(Core, "Unimplemented function!");
    //int cyclesExecuted = slicelength - currentMIPS->downcount;
    //globalTimer += cyclesExecuted;
    //currentMIPS->downcount = slicelength;
    //if (Common::AtomicLoadAcquire(hasTsEvents))
-    //  MoveEvents();
+    //    MoveEvents();
    //ProcessFifoWaitEvents();
    //if (!first)
    //{
-    //  // WARN_LOG(TIMER, "WARNING - no events in queue. Setting currentMIPS->downcount to 10000");
+    //    // WARN_LOG(TIMER, "WARNING - no events in queue. Setting currentMIPS->downcount to 10000");
-    //  currentMIPS->downcount += 10000;
+    //    currentMIPS->downcount += 10000;
    //}
    //else
    //{
-    //  slicelength = (int)(first->time - globalTimer);
+    //    slicelength = (int)(first->time - globalTimer);
-    //  if (slicelength > MAX_SLICE_LENGTH)
+    //    if (slicelength > MAX_SLICE_LENGTH)
-    //          slicelength = MAX_SLICE_LENGTH;
+    //        slicelength = MAX_SLICE_LENGTH;
-    //  currentMIPS->downcount = slicelength;
+    //    currentMIPS->downcount = slicelength;
    //}
    //if (advanceCallback)
-    //  advanceCallback(cyclesExecuted);
+    //    advanceCallback(cyclesExecuted);
 }
 void LogPendingEvents()
@@ -547,23 +547,23 @@ void LogPendingEvents()
 void Idle(int maxIdle)
 {
-    ERROR_LOG(TIME, "Unimplemented function!");
+    LOG_ERROR(Core, "Unimplemented function!");
    //int cyclesDown = currentMIPS->downcount;
    //if (maxIdle != 0 && cyclesDown > maxIdle)
-    //  cyclesDown = maxIdle;
+    //    cyclesDown = maxIdle;
    //if (first && cyclesDown > 0)
    //{
-    //  int cyclesExecuted = slicelength - currentMIPS->downcount;
+    //    int cyclesExecuted = slicelength - currentMIPS->downcount;
-    //  int cyclesNextEvent = (int) (first->time - globalTimer);
+    //    int cyclesNextEvent = (int) (first->time - globalTimer);
-    //  if (cyclesNextEvent < cyclesExecuted + cyclesDown)
+    //    if (cyclesNextEvent < cyclesExecuted + cyclesDown)
-    //  {
+    //    {
-    //          cyclesDown = cyclesNextEvent - cyclesExecuted;
+    //        cyclesDown = cyclesNextEvent - cyclesExecuted;
-    //          // Now, now... no time machines, please.
+    //        // Now, now... no time machines, please.
-    //          if (cyclesDown < 0)
+    //        if (cyclesDown < 0)
-    //                  cyclesDown = 0;
+    //            cyclesDown = 0;
-    //  }
+    //    }
    //}
    //INFO_LOG(TIME, "Idle for %i cycles! (%f ms)", cyclesDown, cyclesDown / (float)(g_clock_rate_arm11 * 0.001f));
@@ -571,7 +571,7 @@ void Idle(int maxIdle)
    //idledCycles += cyclesDown;
    //currentMIPS->downcount -= cyclesDown;
    //if (currentMIPS->downcount == 0)
-    //  currentMIPS->downcount = -1;
+    //    currentMIPS->downcount = -1;
 }
 std::string GetScheduledEventsSummary()
@@ -614,7 +614,7 @@ void DoState(PointerWrap &p)
    // These (should) be filled in later by the modules.
    event_types.resize(n, EventType(AntiCrashCallback, "INVALID EVENT"));
-    p.DoLinkedList<BaseEvent, GetNewEvent, FreeEvent, Event_DoState>(first, (Event **)NULL);
+    p.DoLinkedList<BaseEvent, GetNewEvent, FreeEvent, Event_DoState>(first, (Event **)nullptr);
    p.DoLinkedList<BaseEvent, GetNewTsEvent, FreeTsEvent, Event_DoState>(tsFirst, &tsLast);
    p.Do(g_clock_rate_arm11);
@@ -623,4 +623,4 @@ void DoState(PointerWrap &p)
    p.Do(idledCycles);
 }
-}       // namespace
+} // namespace
diff --git a/src/core/core_timing.h b/src/core/core_timing.h
index 09fdf7a90..b197cf40c 100644
--- a/src/core/core_timing.h
+++ b/src/core/core_timing.h
@@ -106,4 +106,4 @@ void SetClockFrequencyMHz(int cpuMhz);
 int GetClockFrequencyMHz();
 extern int slicelength;
-}; // namespace
+} // namespace
diff --git a/src/core/file_sys/archive.h b/src/core/file_sys/archive.h
deleted file mode 100644
index aeabf09ac..000000000
--- a/src/core/file_sys/archive.h
+++ /dev/null
@@ -1,104 +0,0 @@
-// Copyright 2014 Citra Emulator Project
-// Licensed under GPLv2
-// Refer to the license.txt file included.
-#pragma once
-#include <memory>
-#include "common/common_types.h"
-#include "common/bit_field.h"
-#include "core/file_sys/file.h"
-#include "core/file_sys/directory.h"
-#include "core/hle/kernel/kernel.h"
-////////////////////////////////////////////////////////////////////////////////////////////////////
-// FileSys namespace
-namespace FileSys {
-union Mode {
-    u32 hex;
-    BitField<0, 1, u32> read_flag;
-    BitField<1, 1, u32> write_flag;
-    BitField<2, 1, u32> create_flag;
-};
-class Archive : NonCopyable {
-public:
-    /// Supported archive types
-    enum class IdCode : u32 {
-        RomFS               = 0x00000003,
-        SaveData            = 0x00000004,
-        ExtSaveData         = 0x00000006,
-        SharedExtSaveData   = 0x00000007,
-        SystemSaveData      = 0x00000008,
-        SDMC                = 0x00000009,
-        SDMCWriteOnly       = 0x0000000A,
-    };
-    Archive() { }
-    virtual ~Archive() { }
-    /**
-     * Get the IdCode of the archive (e.g. RomFS, SaveData, etc.)
-     * @return IdCode of the archive
-     */
-    virtual IdCode GetIdCode() const = 0;
-    /**
-     * Open a file specified by its path, using the specified mode
-     * @param path Path relative to the archive
-     * @param mode Mode to open the file with
-     * @return Opened file, or nullptr
-     */
-    virtual std::unique_ptr<File> OpenFile(const std::string& path, const Mode mode) const = 0;
-    /**
-     * Create a directory specified by its path
-     * @param path Path relative to the archive
-     * @return Whether the directory could be created
-     */
-    virtual bool CreateDirectory(const std::string& path) const = 0;
-    /**
-     * Open a directory specified by its path
-     * @param path Path relative to the archive
-     * @return Opened directory, or nullptr
-     */
-    virtual std::unique_ptr<Directory> OpenDirectory(const std::string& path) const = 0;
-    /**
-     * Read data from the archive
-     * @param offset Offset in bytes to start reading data from
-     * @param length Length in bytes of data to read from archive
-     * @param buffer Buffer to read data into
-     * @return Number of bytes read
-     */
-    virtual size_t Read(const u64 offset, const u32 length, u8* buffer) const = 0;
-    /**
-     * Write data to the archive
-     * @param offset Offset in bytes to start writing data to
-     * @param length Length in bytes of data to write to archive
-     * @param buffer Buffer to write data from
-     * @param flush  The flush parameters (0 == do not flush)
-     * @return Number of bytes written
-     */
-    virtual size_t Write(const u64 offset, const u32 length, const u32 flush, u8* buffer) = 0;
-    /**
-     * Get the size of the archive in bytes
-     * @return Size of the archive in bytes
-     */
-    virtual size_t GetSize() const = 0;
-    
-    /**
-     * Set the size of the archive in bytes
-     */
-    virtual void SetSize(const u64 size) = 0;
-};
-} // namespace FileSys
diff --git a/src/core/file_sys/archive_backend.h b/src/core/file_sys/archive_backend.h
new file mode 100644
index 000000000..18c314884
--- /dev/null
+++ b/src/core/file_sys/archive_backend.h
@@ -0,0 +1,225 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2
+// Refer to the license.txt file included.
+#pragma once
+#include <memory>
+#include "common/common_types.h"
+#include "common/string_util.h"
+#include "common/bit_field.h"
+#include "core/file_sys/file_backend.h"
+#include "core/file_sys/directory_backend.h"
+#include "core/mem_map.h"
+#include "core/hle/kernel/kernel.h"
+////////////////////////////////////////////////////////////////////////////////////////////////////
+// FileSys namespace
+namespace FileSys {
+// Path string type
+enum LowPathType : u32 {
+    Invalid = 0,
+    Empty   = 1,
+    Binary  = 2,
+    Char    = 3,
+    Wchar   = 4
+};
+union Mode {
+    u32 hex;
+    BitField<0, 1, u32> read_flag;
+    BitField<1, 1, u32> write_flag;
+    BitField<2, 1, u32> create_flag;
+};
+class Path {
+public:
+    Path():
+        type(Invalid)
+    {
+    }
+    Path(LowPathType type, u32 size, u32 pointer):
+        type(type)
+    {
+        switch (type) {
+            case Binary:
+            {
+                u8* data = Memory::GetPointer(pointer);
+                binary = std::vector<u8>(data, data + size);
+                break;
+            }
+            case Char:
+            {
+                const char* data = reinterpret_cast<const char*>(Memory::GetPointer(pointer));
+                string = std::string(data, size - 1); // Data is always null-terminated.
+                break;
+            }
+            case Wchar:
+            {
+                const char16_t* data = reinterpret_cast<const char16_t*>(Memory::GetPointer(pointer));
+                u16str = std::u16string(data, size/2 - 1); // Data is always null-terminated.
+                break;
+            }
+            default:
+                break;
+        }
+    }
+    LowPathType GetType() const {
+        return type;
+    }
+    /**
+     * Gets the string representation of the path for debugging
+     * @return String representation of the path for debugging
+     */
+    const std::string DebugStr() const {
+        switch (GetType()) {
+        case Invalid:
+            return "[Invalid]";
+        case Empty:
+            return "[Empty]";
+        case Binary:
+        {
+            std::stringstream res;
+            res << "[Binary: ";
+            for (unsigned byte : binary)
+                res << std::hex << std::setw(2) << std::setfill('0') << byte;
+            res << ']';
+            return res.str();
+        }
+        case Char:
+            return "[Char: " + AsString() + ']';
+        case Wchar:
+            return "[Wchar: " + AsString() + ']';
+        default:
+            // TODO(yuriks): Add assert
+            LOG_ERROR(Service_FS, "LowPathType cannot be converted to string!");
+            return {};
+        }
+    }
+    const std::string AsString() const {
+        switch (GetType()) {
+            case Char:
+                return string;
+            case Wchar:
+                return Common::UTF16ToUTF8(u16str);
+            case Empty:
+                return {};
+            default:
+                // TODO(yuriks): Add assert
+                LOG_ERROR(Service_FS, "LowPathType cannot be converted to string!");
+                return {};
+        }
+    }
+    const std::u16string AsU16Str() const {
+        switch (GetType()) {
+            case Char:
+                return Common::UTF8ToUTF16(string);
+            case Wchar:
+                return u16str;
+            case Empty:
+                return {};
+            default:
+                // TODO(yuriks): Add assert
+                LOG_ERROR(Service_FS, "LowPathType cannot be converted to u16string!");
+                return {};
+        }
+    }
+    const std::vector<u8> AsBinary() const {
+        switch (GetType()) {
+            case Binary:
+                return binary;
+            case Char:
+                return std::vector<u8>(string.begin(), string.end());
+            case Wchar:
+                return std::vector<u8>(u16str.begin(), u16str.end());
+            case Empty:
+                return {};
+            default:
+                // TODO(yuriks): Add assert
+                LOG_ERROR(Service_FS, "LowPathType cannot be converted to binary!");
+                return {};
+        }
+    }
+private:
+    LowPathType type;
+    std::vector<u8> binary;
+    std::string string;
+    std::u16string u16str;
+};
+class ArchiveBackend : NonCopyable {
+public:
+    virtual ~ArchiveBackend() { }
+    /**
+     * Get a descriptive name for the archive (e.g. "RomFS", "SaveData", etc.)
+     */
+    virtual std::string GetName() const = 0;
+    /**
+     * Open a file specified by its path, using the specified mode
+     * @param path Path relative to the archive
+     * @param mode Mode to open the file with
+     * @return Opened file, or nullptr
+     */
+    virtual std::unique_ptr<FileBackend> OpenFile(const Path& path, const Mode mode) const = 0;
+    /**
+     * Delete a file specified by its path
+     * @param path Path relative to the archive
+     * @return Whether the file could be deleted
+     */
+    virtual bool DeleteFile(const FileSys::Path& path) const = 0;
+    /**
+     * Rename a File specified by its path
+     * @param src_path Source path relative to the archive
+     * @param dest_path Destination path relative to the archive
+     * @return Whether rename succeeded
+     */
+    virtual bool RenameFile(const FileSys::Path& src_path, const FileSys::Path& dest_path) const = 0;
+    /**
+     * Delete a directory specified by its path
+     * @param path Path relative to the archive
+     * @return Whether the directory could be deleted
+     */
+    virtual bool DeleteDirectory(const FileSys::Path& path) const = 0;
+    /**
+     * Create a directory specified by its path
+     * @param path Path relative to the archive
+     * @return Whether the directory could be created
+     */
+    virtual bool CreateDirectory(const Path& path) const = 0;
+    /**
+     * Rename a Directory specified by its path
+     * @param src_path Source path relative to the archive
+     * @param dest_path Destination path relative to the archive
+     * @return Whether rename succeeded
+     */
+    virtual bool RenameDirectory(const FileSys::Path& src_path, const FileSys::Path& dest_path) const = 0;
+    /**
+     * Open a directory specified by its path
+     * @param path Path relative to the archive
+     * @return Opened directory, or nullptr
+     */
+    virtual std::unique_ptr<DirectoryBackend> OpenDirectory(const Path& path) const = 0;
+};
+} // namespace FileSys
diff --git a/src/core/file_sys/archive_romfs.cpp b/src/core/file_sys/archive_romfs.cpp
index cc759faa8..0709b62a1 100644
--- a/src/core/file_sys/archive_romfs.cpp
+++ b/src/core/file_sys/archive_romfs.cpp
@@ -2,6 +2,8 @@
 // Licensed under GPLv2
 // Refer to the license.txt file included.
+#include <memory>
 #include "common/common_types.h"
 #include "core/file_sys/archive_romfs.h"
@@ -16,81 +18,67 @@ namespace FileSys {
 Archive_RomFS::Archive_RomFS(const Loader::AppLoader& app_loader) {
    // Load the RomFS from the app
    if (Loader::ResultStatus::Success != app_loader.ReadRomFS(raw_data)) {
-        WARN_LOG(FILESYS, "Unable to read RomFS!");
+        LOG_ERROR(Service_FS, "Unable to read RomFS!");
    }
 }
-Archive_RomFS::~Archive_RomFS() {
-}
 /**
 * Open a file specified by its path, using the specified mode
 * @param path Path relative to the archive
 * @param mode Mode to open the file with
 * @return Opened file, or nullptr
 */
-std::unique_ptr<File> Archive_RomFS::OpenFile(const std::string& path, const Mode mode) const {
+std::unique_ptr<FileBackend> Archive_RomFS::OpenFile(const Path& path, const Mode mode) const {
-    return std::unique_ptr<File>(new File_RomFS);
+    return std::make_unique<File_RomFS>(this);
 }
 /**
- * Create a directory specified by its path
+ * Delete a file specified by its path
 * @param path Path relative to the archive
- * @return Whether the directory could be created
+ * @return Whether the file could be deleted
 */
-bool Archive_RomFS::CreateDirectory(const std::string& path) const {
+bool Archive_RomFS::DeleteFile(const FileSys::Path& path) const {
-    ERROR_LOG(FILESYS, "Attempted to create a directory in ROMFS.");
+    LOG_WARNING(Service_FS, "Attempted to delete a file from ROMFS.");
    return false;
-};
+}
-/**
+bool Archive_RomFS::RenameFile(const FileSys::Path& src_path, const FileSys::Path& dest_path) const {
- * Open a directory specified by its path
+    LOG_WARNING(Service_FS, "Attempted to rename a file within ROMFS.");
- * @param path Path relative to the archive
+    return false;
- * @return Opened directory, or nullptr
- */
-std::unique_ptr<Directory> Archive_RomFS::OpenDirectory(const std::string& path) const {
-    return std::unique_ptr<Directory>(new Directory_RomFS);
 }
 /**
- * Read data from the archive
+ * Delete a directory specified by its path
- * @param offset Offset in bytes to start reading data from
+ * @param path Path relative to the archive
- * @param length Length in bytes of data to read from archive
+ * @return Whether the directory could be deleted
- * @param buffer Buffer to read data into
- * @return Number of bytes read
 */
-size_t Archive_RomFS::Read(const u64 offset, const u32 length, u8* buffer) const {
+bool Archive_RomFS::DeleteDirectory(const FileSys::Path& path) const {
-    DEBUG_LOG(FILESYS, "called offset=%llu, length=%d", offset, length);
+    LOG_WARNING(Service_FS, "Attempted to delete a directory from ROMFS.");
-    memcpy(buffer, &raw_data[(u32)offset], length);
+    return false;
-    return length;
 }
 /**
- * Write data to the archive
+ * Create a directory specified by its path
- * @param offset Offset in bytes to start writing data to
+ * @param path Path relative to the archive
- * @param length Length in bytes of data to write to archive
+ * @return Whether the directory could be created
- * @param buffer Buffer to write data from
- * @param flush  The flush parameters (0 == do not flush)
- * @return Number of bytes written
 */
-size_t Archive_RomFS::Write(const u64 offset, const u32 length, const u32 flush, u8* buffer) {
+bool Archive_RomFS::CreateDirectory(const Path& path) const {
-    ERROR_LOG(FILESYS, "Attempted to write to ROMFS.");
+    LOG_WARNING(Service_FS, "Attempted to create a directory in ROMFS.");
-    return 0;
+    return false;
 }
-/**
+bool Archive_RomFS::RenameDirectory(const FileSys::Path& src_path, const FileSys::Path& dest_path) const {
- * Get the size of the archive in bytes
+    LOG_WARNING(Service_FS, "Attempted to rename a file within ROMFS.");
- * @return Size of the archive in bytes
+    return false;
- */
-size_t Archive_RomFS::GetSize() const {
-    return sizeof(u8) * raw_data.size();
 }
 /**
- * Set the size of the archive in bytes
+ * Open a directory specified by its path
+ * @param path Path relative to the archive
+ * @return Opened directory, or nullptr
 */
-void Archive_RomFS::SetSize(const u64 size) {
+std::unique_ptr<DirectoryBackend> Archive_RomFS::OpenDirectory(const Path& path) const {
-    ERROR_LOG(FILESYS, "Attempted to set the size of ROMFS");
+    return std::make_unique<Directory_RomFS>();
 }
 } // namespace FileSys
diff --git a/src/core/file_sys/archive_romfs.h b/src/core/file_sys/archive_romfs.h
index ae2344e82..5b1ee6332 100644
--- a/src/core/file_sys/archive_romfs.h
+++ b/src/core/file_sys/archive_romfs.h
@@ -8,7 +8,7 @@
 #include "common/common_types.h"
-#include "core/file_sys/archive.h"
+#include "core/file_sys/archive_backend.h"
 #include "core/loader/loader.h"
 ////////////////////////////////////////////////////////////////////////////////////////////////////
@@ -17,16 +17,11 @@
 namespace FileSys {
 /// File system interface to the RomFS archive
-class Archive_RomFS final : public Archive {
+class Archive_RomFS final : public ArchiveBackend {
 public:
    Archive_RomFS(const Loader::AppLoader& app_loader);
-    ~Archive_RomFS() override;
-    /**
+    std::string GetName() const override { return "RomFS"; }
-     * Get the IdCode of the archive (e.g. RomFS, SaveData, etc.)
-     * @return IdCode of the archive
-     */
-    IdCode GetIdCode() const override { return IdCode::RomFS; };
    /**
     * Open a file specified by its path, using the specified mode
@@ -34,53 +29,55 @@ public:
     * @param mode Mode to open the file with
     * @return Opened file, or nullptr
     */
-    std::unique_ptr<File> OpenFile(const std::string& path, const Mode mode) const override;
+    std::unique_ptr<FileBackend> OpenFile(const Path& path, const Mode mode) const override;
    /**
-     * Create a directory specified by its path
+     * Delete a file specified by its path
     * @param path Path relative to the archive
-     * @return Whether the directory could be created
+     * @return Whether the file could be deleted
     */
-    bool CreateDirectory(const std::string& path) const override;
+    bool DeleteFile(const FileSys::Path& path) const override;
    /**
-     * Open a directory specified by its path
+     * Rename a File specified by its path
-     * @param path Path relative to the archive
+     * @param src_path Source path relative to the archive
-     * @return Opened directory, or nullptr
+     * @param dest_path Destination path relative to the archive
+     * @return Whether rename succeeded
     */
-    std::unique_ptr<Directory> OpenDirectory(const std::string& path) const override;
+    bool RenameFile(const FileSys::Path& src_path, const FileSys::Path& dest_path) const override;
    /**
-     * Read data from the archive
+     * Delete a directory specified by its path
-     * @param offset Offset in bytes to start reading data from
+     * @param path Path relative to the archive
-     * @param length Length in bytes of data to read from archive
+     * @return Whether the directory could be deleted
-     * @param buffer Buffer to read data into
-     * @return Number of bytes read
     */
-    size_t Read(const u64 offset, const u32 length, u8* buffer) const override;
+    bool DeleteDirectory(const FileSys::Path& path) const override;
    /**
-     * Write data to the archive
+     * Create a directory specified by its path
-     * @param offset Offset in bytes to start writing data to
+     * @param path Path relative to the archive
-     * @param length Length in bytes of data to write to archive
+     * @return Whether the directory could be created
-     * @param buffer Buffer to write data from
-     * @param flush  The flush parameters (0 == do not flush)
-     * @return Number of bytes written
     */
-    size_t Write(const u64 offset, const u32 length, const u32 flush, u8* buffer) override;
+    bool CreateDirectory(const Path& path) const override;
    /**
-     * Get the size of the archive in bytes
+     * Rename a Directory specified by its path
-     * @return Size of the archive in bytes
+     * @param src_path Source path relative to the archive
+     * @param dest_path Destination path relative to the archive
+     * @return Whether rename succeeded
     */
-    size_t GetSize() const override;
+    bool RenameDirectory(const FileSys::Path& src_path, const FileSys::Path& dest_path) const override;
-    
    /**
-     * Set the size of the archive in bytes
+     * Open a directory specified by its path
+     * @param path Path relative to the archive
+     * @return Opened directory, or nullptr
     */
-    void SetSize(const u64 size) override;
+    std::unique_ptr<DirectoryBackend> OpenDirectory(const Path& path) const override;
 private:
+    friend class File_RomFS;
    std::vector<u8> raw_data;
 };
diff --git a/src/core/file_sys/archive_savedata.cpp b/src/core/file_sys/archive_savedata.cpp
new file mode 100644
index 000000000..2414564e4
--- /dev/null
+++ b/src/core/file_sys/archive_savedata.cpp
@@ -0,0 +1,33 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2+
+// Refer to the license.txt file included.
+#include <sys/stat.h>
+#include "common/common_types.h"
+#include "common/file_util.h"
+#include "core/file_sys/archive_savedata.h"
+#include "core/file_sys/disk_archive.h"
+#include "core/settings.h"
+////////////////////////////////////////////////////////////////////////////////////////////////////
+// FileSys namespace
+namespace FileSys {
+Archive_SaveData::Archive_SaveData(const std::string& mount_point, u64 program_id) 
+        : DiskArchive(mount_point + Common::StringFromFormat("%016X", program_id) + DIR_SEP) {
+    LOG_INFO(Service_FS, "Directory %s set as SaveData.", this->mount_point.c_str());
+}
+bool Archive_SaveData::Initialize() {
+    if (!FileUtil::CreateFullPath(mount_point)) {
+        LOG_ERROR(Service_FS, "Unable to create SaveData path.");
+        return false;
+    }
+    return true;
+}
+} // namespace FileSys
diff --git a/src/core/file_sys/archive_savedata.h b/src/core/file_sys/archive_savedata.h
new file mode 100644
index 000000000..b3e561130
--- /dev/null
+++ b/src/core/file_sys/archive_savedata.h
@@ -0,0 +1,32 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2+
+// Refer to the license.txt file included.
+#pragma once
+#include "common/common_types.h"
+#include "core/file_sys/disk_archive.h"
+#include "core/loader/loader.h"
+////////////////////////////////////////////////////////////////////////////////////////////////////
+// FileSys namespace
+namespace FileSys {
+/// File system interface to the SaveData archive
+class Archive_SaveData final : public DiskArchive {
+public:
+    Archive_SaveData(const std::string& mount_point, u64 program_id);
+    /**
+     * Initialize the archive.
+     * @return CreateSaveDataResult AlreadyExists if the SaveData folder already exists,
+     * Success if it was created properly and Failure if there was any error
+     */
+    bool Initialize();
+    std::string GetName() const override { return "SaveData"; }
+};
+} // namespace FileSys
diff --git a/src/core/file_sys/archive_sdmc.cpp b/src/core/file_sys/archive_sdmc.cpp
index 66931e93e..dccdf7f67 100644
--- a/src/core/file_sys/archive_sdmc.cpp
+++ b/src/core/file_sys/archive_sdmc.cpp
@@ -8,8 +8,7 @@
 #include "common/file_util.h"
 #include "core/file_sys/archive_sdmc.h"
-#include "core/file_sys/directory_sdmc.h"
+#include "core/file_sys/disk_archive.h"
-#include "core/file_sys/file_sdmc.h"
 #include "core/settings.h"
 ////////////////////////////////////////////////////////////////////////////////////////////////////
@@ -17,113 +16,22 @@
 namespace FileSys {
-Archive_SDMC::Archive_SDMC(const std::string& mount_point) {
+Archive_SDMC::Archive_SDMC(const std::string& mount_point) : DiskArchive(mount_point) {
-    this->mount_point = mount_point;
+    LOG_INFO(Service_FS, "Directory %s set as SDMC.", mount_point.c_str());
-    DEBUG_LOG(FILESYS, "Directory %s set as SDMC.", mount_point.c_str());
 }
-Archive_SDMC::~Archive_SDMC() {
-}
-/**
- * Initialize the archive.
- * @return true if it initialized successfully
- */
 bool Archive_SDMC::Initialize() {
    if (!Settings::values.use_virtual_sd) {
-        WARN_LOG(FILESYS, "SDMC disabled by config.");
+        LOG_WARNING(Service_FS, "SDMC disabled by config.");
        return false;
    }
    if (!FileUtil::CreateFullPath(mount_point)) {
-        WARN_LOG(FILESYS, "Unable to create SDMC path.");
+        LOG_ERROR(Service_FS, "Unable to create SDMC path.");
        return false;
    }
    return true;
 }
-/**
- * Open a file specified by its path, using the specified mode
- * @param path Path relative to the archive
- * @param mode Mode to open the file with
- * @return Opened file, or nullptr
- */
-std::unique_ptr<File> Archive_SDMC::OpenFile(const std::string& path, const Mode mode) const {
-    DEBUG_LOG(FILESYS, "called path=%s mode=%d", path.c_str(), mode);
-    File_SDMC* file = new File_SDMC(this, path, mode);
-    if (!file->Open())
-        return nullptr;
-    return std::unique_ptr<File>(file);
-}
-/**
- * Create a directory specified by its path
- * @param path Path relative to the archive
- * @return Whether the directory could be created
- */
-bool Archive_SDMC::CreateDirectory(const std::string& path) const {
-    return FileUtil::CreateDir(GetMountPoint() + path);
-}
-/**
- * Open a directory specified by its path
- * @param path Path relative to the archive
- * @return Opened directory, or nullptr
- */
-std::unique_ptr<Directory> Archive_SDMC::OpenDirectory(const std::string& path) const {
-    DEBUG_LOG(FILESYS, "called path=%s", path.c_str());
-    Directory_SDMC* directory = new Directory_SDMC(this, path);
-    return std::unique_ptr<Directory>(directory);
-}
-/**
- * Read data from the archive
- * @param offset Offset in bytes to start reading archive from
- * @param length Length in bytes to read data from archive
- * @param buffer Buffer to read data into
- * @return Number of bytes read
- */
-size_t Archive_SDMC::Read(const u64 offset, const u32 length, u8* buffer) const {
-    ERROR_LOG(FILESYS, "(UNIMPLEMENTED)");
-    return -1;
-}
-/**
- * Write data to the archive
- * @param offset Offset in bytes to start writing data to
- * @param length Length in bytes of data to write to archive
- * @param buffer Buffer to write data from
- * @param flush  The flush parameters (0 == do not flush)
- * @return Number of bytes written
- */
-size_t Archive_SDMC::Write(const u64 offset, const u32 length, const u32 flush, u8* buffer) {
-    ERROR_LOG(FILESYS, "(UNIMPLEMENTED)");
-    return -1;
-}
-/**
- * Get the size of the archive in bytes
- * @return Size of the archive in bytes
- */
-size_t Archive_SDMC::GetSize() const {
-    ERROR_LOG(FILESYS, "(UNIMPLEMENTED)");
-    return 0;
-}
-/**
- * Set the size of the archive in bytes
- */
-void Archive_SDMC::SetSize(const u64 size) {
-    ERROR_LOG(FILESYS, "(UNIMPLEMENTED)");
-}
-/**
- * Getter for the path used for this Archive
- * @return Mount point of that passthrough archive
- */
-std::string Archive_SDMC::GetMountPoint() const {
-    return mount_point;
-}
 } // namespace FileSys
diff --git a/src/core/file_sys/archive_sdmc.h b/src/core/file_sys/archive_sdmc.h
index 0e059b635..c84c6948e 100644
--- a/src/core/file_sys/archive_sdmc.h
+++ b/src/core/file_sys/archive_sdmc.h
@@ -6,7 +6,7 @@
 #include "common/common_types.h"
-#include "core/file_sys/archive.h"
+#include "core/file_sys/disk_archive.h"
 #include "core/loader/loader.h"
 ////////////////////////////////////////////////////////////////////////////////////////////////////
@@ -15,10 +15,9 @@
 namespace FileSys {
 /// File system interface to the SDMC archive
-class Archive_SDMC final : public Archive {
+class Archive_SDMC final : public DiskArchive {
 public:
    Archive_SDMC(const std::string& mount_point);
-    ~Archive_SDMC() override;
    /**
     * Initialize the archive.
@@ -26,72 +25,7 @@ public:
     */
    bool Initialize();
-    /**
+    std::string GetName() const override { return "SDMC"; }
-     * Get the IdCode of the archive (e.g. RomFS, SaveData, etc.)
-     * @return IdCode of the archive
-     */
-    IdCode GetIdCode() const override { return IdCode::SDMC; };
-    /**
-     * Open a file specified by its path, using the specified mode
-     * @param path Path relative to the archive
-     * @param mode Mode to open the file with
-     * @return Opened file, or nullptr
-     */
-    std::unique_ptr<File> OpenFile(const std::string& path, const Mode mode) const override;
-    /**
-     * Create a directory specified by its path
-     * @param path Path relative to the archive
-     * @return Whether the directory could be created
-     */
-    bool CreateDirectory(const std::string& path) const override;
-    /**
-     * Open a directory specified by its path
-     * @param path Path relative to the archive
-     * @return Opened directory, or nullptr
-     */
-    std::unique_ptr<Directory> OpenDirectory(const std::string& path) const override;
-    /**
-     * Read data from the archive
-     * @param offset Offset in bytes to start reading archive from
-     * @param length Length in bytes to read data from archive
-     * @param buffer Buffer to read data into
-     * @return Number of bytes read
-     */
-    size_t Read(const u64 offset, const u32 length, u8* buffer) const override;
-    /**
-     * Write data to the archive
-     * @param offset Offset in bytes to start writing data to
-     * @param length Length in bytes of data to write to archive
-     * @param buffer Buffer to write data from
-     * @param flush  The flush parameters (0 == do not flush)
-     * @return Number of bytes written
-     */
-    size_t Write(const u64 offset, const u32 length, const u32 flush, u8* buffer) override;
-    /**
-     * Get the size of the archive in bytes
-     * @return Size of the archive in bytes
-     */
-    size_t GetSize() const override;
-    /**
-     * Set the size of the archive in bytes
-     */
-    void SetSize(const u64 size) override;
-    /**
-     * Getter for the path used for this Archive
-     * @return Mount point of that passthrough archive
-     */
-    std::string GetMountPoint() const;
-private:
-    std::string mount_point;
 };
 } // namespace FileSys
diff --git a/src/core/file_sys/directory.h b/src/core/file_sys/directory_backend.h
index e10431337..188746a6f 100644
--- a/src/core/file_sys/directory.h
+++ b/src/core/file_sys/directory_backend.h
@@ -36,10 +36,16 @@ static_assert(offsetof(Entry, extension) == 0x216, "Wrong offset for extension i
 static_assert(offsetof(Entry, is_archive) == 0x21E, "Wrong offset for is_archive in Entry.");
 static_assert(offsetof(Entry, file_size) == 0x220, "Wrong offset for file_size in Entry.");
-class Directory : NonCopyable {
+class DirectoryBackend : NonCopyable {
 public:
-    Directory() { }
+    DirectoryBackend() { }
-    virtual ~Directory() { }
+    virtual ~DirectoryBackend() { }
+    /**
+    * Open the directory
+    * @return true if the directory opened correctly
+    */
+    virtual bool Open() = 0;
    /**
     * List files contained in the directory
diff --git a/src/core/file_sys/directory_romfs.cpp b/src/core/file_sys/directory_romfs.cpp
index 4e8f4c04d..e6d571391 100644
--- a/src/core/file_sys/directory_romfs.cpp
+++ b/src/core/file_sys/directory_romfs.cpp
@@ -17,6 +17,10 @@ Directory_RomFS::Directory_RomFS() {
 Directory_RomFS::~Directory_RomFS() {
 }
+bool Directory_RomFS::Open() {
+    return false;
+}
 /**
 * List files contained in the directory
 * @param count Number of entries to return at once in entries
diff --git a/src/core/file_sys/directory_romfs.h b/src/core/file_sys/directory_romfs.h
index 4b71c4b13..b775f014d 100644
--- a/src/core/file_sys/directory_romfs.h
+++ b/src/core/file_sys/directory_romfs.h
@@ -6,7 +6,7 @@
 #include "common/common_types.h"
-#include "core/file_sys/directory.h"
+#include "core/file_sys/directory_backend.h"
 #include "core/loader/loader.h"
 ////////////////////////////////////////////////////////////////////////////////////////////////////
@@ -14,12 +14,18 @@
 namespace FileSys {
-class Directory_RomFS final : public Directory {
+class Directory_RomFS final : public DirectoryBackend {
 public:
    Directory_RomFS();
    ~Directory_RomFS() override;
    /**
+    * Open the directory
+    * @return true if the directory opened correctly
+    */
+    bool Open() override;
+    /**
     * List files contained in the directory
     * @param count Number of entries to return at once in entries
     * @param entries Buffer to read data into
diff --git a/src/core/file_sys/directory_sdmc.cpp b/src/core/file_sys/directory_sdmc.cpp
deleted file mode 100644
index fd558def9..000000000
--- a/src/core/file_sys/directory_sdmc.cpp
+++ /dev/null
@@ -1,81 +0,0 @@
-// Copyright 2014 Citra Emulator Project
-// Licensed under GPLv2
-// Refer to the license.txt file included.
-#include <sys/stat.h>
-#include "common/common_types.h"
-#include "common/file_util.h"
-#include "core/file_sys/directory_sdmc.h"
-#include "core/file_sys/archive_sdmc.h"
-////////////////////////////////////////////////////////////////////////////////////////////////////
-// FileSys namespace
-namespace FileSys {
-Directory_SDMC::Directory_SDMC(const Archive_SDMC* archive, const std::string& path) {
-    // TODO(Link Mauve): normalize path into an absolute path without "..", it can currently bypass
-    // the root directory we set while opening the archive.
-    // For example, opening /../../usr/bin can give the emulated program your installed programs.
-    std::string absolute_path = archive->GetMountPoint() + path;
-    FileUtil::ScanDirectoryTree(absolute_path, directory);
-    children_iterator = directory.children.begin();
-}
-Directory_SDMC::~Directory_SDMC() {
-    Close();
-}
-/**
- * List files contained in the directory
- * @param count Number of entries to return at once in entries
- * @param entries Buffer to read data into
- * @return Number of entries listed
- */
-u32 Directory_SDMC::Read(const u32 count, Entry* entries) {
-    u32 entries_read = 0;
-    while (entries_read < count && children_iterator != directory.children.cend()) {
-        const FileUtil::FSTEntry& file = *children_iterator;
-        const std::string& filename = file.virtualName;
-        Entry& entry = entries[entries_read];
-        WARN_LOG(FILESYS, "File %s: size=%llu dir=%d", filename.c_str(), file.size, file.isDirectory);
-        // TODO(Link Mauve): use a proper conversion to UTF-16.
-        for (int j = 0; j < FILENAME_LENGTH; ++j) {
-            entry.filename[j] = filename[j];
-            if (!filename[j])
-                break;
-        }
-        FileUtil::SplitFilename83(filename, entry.short_name, entry.extension);
-        entry.is_directory = file.isDirectory;
-        entry.is_hidden = (filename[0] == '.');
-        entry.is_read_only = 0;
-        entry.file_size = file.size;
-        // We emulate a SD card where the archive bit has never been cleared, as it would be on
-        // most user SD cards.
-        // Some homebrews (blargSNES for instance) are known to mistakenly use the archive bit as a
-        // file bit.
-        entry.is_archive = !file.isDirectory;
-        ++entries_read;
-        ++children_iterator;
-    }
-    return entries_read;
-}
-/**
- * Close the directory
- * @return true if the directory closed correctly
- */
-bool Directory_SDMC::Close() const {
-    return true;
-}
-} // namespace FileSys
diff --git a/src/core/file_sys/directory_sdmc.h b/src/core/file_sys/directory_sdmc.h
deleted file mode 100644
index cb8d32fda..000000000
--- a/src/core/file_sys/directory_sdmc.h
+++ /dev/null
@@ -1,48 +0,0 @@
-// Copyright 2014 Citra Emulator Project
-// Licensed under GPLv2
-// Refer to the license.txt file included.
-#pragma once
-#include "common/common_types.h"
-#include "common/file_util.h"
-#include "core/file_sys/directory.h"
-#include "core/file_sys/archive_sdmc.h"
-#include "core/loader/loader.h"
-////////////////////////////////////////////////////////////////////////////////////////////////////
-// FileSys namespace
-namespace FileSys {
-class Directory_SDMC final : public Directory {
-public:
-    Directory_SDMC();
-    Directory_SDMC(const Archive_SDMC* archive, const std::string& path);
-    ~Directory_SDMC() override;
-    /**
-     * List files contained in the directory
-     * @param count Number of entries to return at once in entries
-     * @param entries Buffer to read data into
-     * @return Number of entries listed
-     */
-    u32 Read(const u32 count, Entry* entries) override;
-    /**
-     * Close the directory
-     * @return true if the directory closed correctly
-     */
-    bool Close() const override;
-private:
-    u32 total_entries_in_directory;
-    FileUtil::FSTEntry directory;
-    // We need to remember the last entry we returned, so a subsequent call to Read will continue
-    // from the next one.  This iterator will always point to the next unread entry.
-    std::vector<FileUtil::FSTEntry>::iterator children_iterator;
-};
-} // namespace FileSys
diff --git a/src/core/file_sys/disk_archive.cpp b/src/core/file_sys/disk_archive.cpp
new file mode 100644
index 000000000..eabf58057
--- /dev/null
+++ b/src/core/file_sys/disk_archive.cpp
@@ -0,0 +1,167 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2
+// Refer to the license.txt file included.
+#include <sys/stat.h>
+#include "common/common_types.h"
+#include "common/file_util.h"
+#include "core/file_sys/disk_archive.h"
+#include "core/settings.h"
+////////////////////////////////////////////////////////////////////////////////////////////////////
+// FileSys namespace
+namespace FileSys {
+std::unique_ptr<FileBackend> DiskArchive::OpenFile(const Path& path, const Mode mode) const {
+    LOG_DEBUG(Service_FS, "called path=%s mode=%01X", path.DebugStr().c_str(), mode.hex);
+    DiskFile* file = new DiskFile(this, path, mode);
+    if (!file->Open())
+        return nullptr;
+    return std::unique_ptr<FileBackend>(file);
+}
+bool DiskArchive::DeleteFile(const FileSys::Path& path) const {
+    return FileUtil::Delete(GetMountPoint() + path.AsString());
+}
+bool DiskArchive::RenameFile(const FileSys::Path& src_path, const FileSys::Path& dest_path) const {
+    return FileUtil::Rename(GetMountPoint() + src_path.AsString(), GetMountPoint() + dest_path.AsString());
+}
+bool DiskArchive::DeleteDirectory(const FileSys::Path& path) const {
+    return FileUtil::DeleteDir(GetMountPoint() + path.AsString());
+}
+bool DiskArchive::CreateDirectory(const Path& path) const {
+    return FileUtil::CreateDir(GetMountPoint() + path.AsString());
+}
+bool DiskArchive::RenameDirectory(const FileSys::Path& src_path, const FileSys::Path& dest_path) const {
+    return FileUtil::Rename(GetMountPoint() + src_path.AsString(), GetMountPoint() + dest_path.AsString());
+}
+std::unique_ptr<DirectoryBackend> DiskArchive::OpenDirectory(const Path& path) const {
+    LOG_DEBUG(Service_FS, "called path=%s", path.DebugStr().c_str());
+    DiskDirectory* directory = new DiskDirectory(this, path);
+    if (!directory->Open())
+        return nullptr;
+    return std::unique_ptr<DirectoryBackend>(directory);
+}
+////////////////////////////////////////////////////////////////////////////////////////////////////
+DiskFile::DiskFile(const DiskArchive* archive, const Path& path, const Mode mode) {
+    // TODO(Link Mauve): normalize path into an absolute path without "..", it can currently bypass
+    // the root directory we set while opening the archive.
+    // For example, opening /../../etc/passwd can give the emulated program your users list.
+    this->path = archive->GetMountPoint() + path.AsString();
+    this->mode.hex = mode.hex;
+    this->archive = archive;
+}
+bool DiskFile::Open() {
+    if (!mode.create_flag && !FileUtil::Exists(path)) {
+        LOG_ERROR(Service_FS, "Non-existing file %s can�t be open without mode create.", path.c_str());
+        return false;
+    }
+    std::string mode_string;
+    if (mode.create_flag)
+        mode_string = "w+";
+    else if (mode.write_flag)
+        mode_string = "r+"; // Files opened with Write access can be read from
+    else if (mode.read_flag)
+        mode_string = "r";
+    // Open the file in binary mode, to avoid problems with CR/LF on Windows systems
+    mode_string += "b";
+    file = new FileUtil::IOFile(path, mode_string.c_str());
+    return true;
+}
+size_t DiskFile::Read(const u64 offset, const u32 length, u8* buffer) const {
+    file->Seek(offset, SEEK_SET);
+    return file->ReadBytes(buffer, length);
+}
+size_t DiskFile::Write(const u64 offset, const u32 length, const u32 flush, const u8* buffer) const {
+    file->Seek(offset, SEEK_SET);
+    size_t written = file->WriteBytes(buffer, length);
+    if (flush)
+        file->Flush();
+    return written;
+}
+size_t DiskFile::GetSize() const {
+    return static_cast<size_t>(file->GetSize());
+}
+bool DiskFile::SetSize(const u64 size) const {
+    file->Resize(size);
+    file->Flush();
+    return true;
+}
+bool DiskFile::Close() const {
+    return file->Close();
+}
+////////////////////////////////////////////////////////////////////////////////////////////////////
+DiskDirectory::DiskDirectory(const DiskArchive* archive, const Path& path) {
+    // TODO(Link Mauve): normalize path into an absolute path without "..", it can currently bypass
+    // the root directory we set while opening the archive.
+    // For example, opening /../../usr/bin can give the emulated program your installed programs.
+    this->path = archive->GetMountPoint() + path.AsString();
+    this->archive = archive;
+}
+bool DiskDirectory::Open() {
+    if (!FileUtil::IsDirectory(path))
+        return false;
+    FileUtil::ScanDirectoryTree(path, directory);
+    children_iterator = directory.children.begin();
+    return true;
+}
+u32 DiskDirectory::Read(const u32 count, Entry* entries) {
+    u32 entries_read = 0;
+    while (entries_read < count && children_iterator != directory.children.cend()) {
+        const FileUtil::FSTEntry& file = *children_iterator;
+        const std::string& filename = file.virtualName;
+        Entry& entry = entries[entries_read];
+        LOG_TRACE(Service_FS, "File %s: size=%llu dir=%d", filename.c_str(), file.size, file.isDirectory);
+        // TODO(Link Mauve): use a proper conversion to UTF-16.
+        for (size_t j = 0; j < FILENAME_LENGTH; ++j) {
+            entry.filename[j] = filename[j];
+            if (!filename[j])
+                break;
+        }
+        FileUtil::SplitFilename83(filename, entry.short_name, entry.extension);
+        entry.is_directory = file.isDirectory;
+        entry.is_hidden = (filename[0] == '.');
+        entry.is_read_only = 0;
+        entry.file_size = file.size;
+        // We emulate a SD card where the archive bit has never been cleared, as it would be on
+        // most user SD cards.
+        // Some homebrews (blargSNES for instance) are known to mistakenly use the archive bit as a
+        // file bit.
+        entry.is_archive = !file.isDirectory;
+        ++entries_read;
+        ++children_iterator;
+    }
+    return entries_read;
+}
+} // namespace FileSys
diff --git a/src/core/file_sys/disk_archive.h b/src/core/file_sys/disk_archive.h
new file mode 100644
index 000000000..778c83953
--- /dev/null
+++ b/src/core/file_sys/disk_archive.h
@@ -0,0 +1,101 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2
+// Refer to the license.txt file included.
+#pragma once
+#include "common/common_types.h"
+#include "core/file_sys/archive_backend.h"
+#include "core/loader/loader.h"
+////////////////////////////////////////////////////////////////////////////////////////////////////
+// FileSys namespace
+namespace FileSys {
+/**
+ * Helper which implements a backend accessing the host machine's filesystem. 
+ * This should be subclassed by concrete archive types, which will provide the 
+ * base directory on the host filesystem and override any required functionality.
+ */
+class DiskArchive : public ArchiveBackend {
+public:
+    DiskArchive(const std::string& mount_point_) : mount_point(mount_point_) {}
+    virtual std::string GetName() const = 0;
+    std::unique_ptr<FileBackend> OpenFile(const Path& path, const Mode mode) const override;
+    bool DeleteFile(const FileSys::Path& path) const override;
+    bool RenameFile(const FileSys::Path& src_path, const FileSys::Path& dest_path) const override;
+    bool DeleteDirectory(const FileSys::Path& path) const override;
+    bool CreateDirectory(const Path& path) const override;
+    bool RenameDirectory(const FileSys::Path& src_path, const FileSys::Path& dest_path) const override;
+    std::unique_ptr<DirectoryBackend> OpenDirectory(const Path& path) const override;
+    /**
+     * Getter for the path used for this Archive
+     * @return Mount point of that passthrough archive
+     */
+    const std::string& GetMountPoint() const {
+        return mount_point;
+    }
+protected:
+    std::string mount_point;
+};
+class DiskFile : public FileBackend {
+public:
+    DiskFile();
+    DiskFile(const DiskArchive* archive, const Path& path, const Mode mode);
+    
+    ~DiskFile() override {
+        Close();
+    }
+    bool Open() override;
+    size_t Read(const u64 offset, const u32 length, u8* buffer) const override;
+    size_t Write(const u64 offset, const u32 length, const u32 flush, const u8* buffer) const override;
+    size_t GetSize() const override;
+    bool SetSize(const u64 size) const override;
+    bool Close() const override;
+    
+    void Flush() const override {
+        file->Flush();
+    }
+protected:
+    const DiskArchive* archive;
+    std::string path;
+    Mode mode;
+    FileUtil::IOFile* file;
+};
+class DiskDirectory : public DirectoryBackend {
+public:
+    DiskDirectory();
+    DiskDirectory(const DiskArchive* archive, const Path& path);
+    ~DiskDirectory() override {
+        Close();
+    }
+    bool Open() override;
+    u32 Read(const u32 count, Entry* entries) override;
+    bool Close() const override {
+        return true;
+    }
+protected:
+    const DiskArchive* archive;
+    std::string path;
+    u32 total_entries_in_directory;
+    FileUtil::FSTEntry directory;
+    // We need to remember the last entry we returned, so a subsequent call to Read will continue
+    // from the next one.  This iterator will always point to the next unread entry.
+    std::vector<FileUtil::FSTEntry>::iterator children_iterator;
+};
+} // namespace FileSys
diff --git a/src/core/file_sys/file.h b/src/core/file_sys/file_backend.h
index 4013b6c3e..539ec7314 100644
--- a/src/core/file_sys/file.h
+++ b/src/core/file_sys/file_backend.h
@@ -13,10 +13,10 @@
 namespace FileSys {
-class File : NonCopyable {
+class FileBackend : NonCopyable {
 public:
-    File() { }
+    FileBackend() { }
-    virtual ~File() { }
+    virtual ~FileBackend() { }
    /**
     * Open the file
@@ -61,6 +61,11 @@ public:
     * @return true if the file closed correctly
     */
    virtual bool Close() const = 0;
+    /**
+     * Flushes the file
+     */
+    virtual void Flush() const = 0;
 };
 } // namespace FileSys
diff --git a/src/core/file_sys/file_romfs.cpp b/src/core/file_sys/file_romfs.cpp
index b55708df4..5f38c2704 100644
--- a/src/core/file_sys/file_romfs.cpp
+++ b/src/core/file_sys/file_romfs.cpp
@@ -5,24 +5,19 @@
 #include "common/common_types.h"
 #include "core/file_sys/file_romfs.h"
+#include "core/file_sys/archive_romfs.h"
 ////////////////////////////////////////////////////////////////////////////////////////////////////
 // FileSys namespace
 namespace FileSys {
-File_RomFS::File_RomFS() {
-}
-File_RomFS::~File_RomFS() {
-}
 /**
 * Open the file
 * @return true if the file opened correctly
 */
 bool File_RomFS::Open() {
-    return false;
+    return true;
 }
 /**
@@ -33,7 +28,9 @@ bool File_RomFS::Open() {
 * @return Number of bytes read
 */
 size_t File_RomFS::Read(const u64 offset, const u32 length, u8* buffer) const {
-    return -1;
+    LOG_TRACE(Service_FS, "called offset=%llu, length=%d", offset, length);
+    memcpy(buffer, &archive->raw_data[(u32)offset], length);
+    return length;
 }
 /**
@@ -45,7 +42,8 @@ size_t File_RomFS::Read(const u64 offset, const u32 length, u8* buffer) const {
 * @return Number of bytes written
 */
 size_t File_RomFS::Write(const u64 offset, const u32 length, const u32 flush, const u8* buffer) const {
-    return -1;
+    LOG_WARNING(Service_FS, "Attempted to write to ROMFS.");
+    return 0;
 }
 /**
@@ -53,7 +51,7 @@ size_t File_RomFS::Write(const u64 offset, const u32 length, const u32 flush, co
 * @return Size of the file in bytes
 */
 size_t File_RomFS::GetSize() const {
-    return -1;
+    return sizeof(u8) * archive->raw_data.size();
 }
 /**
@@ -62,6 +60,7 @@ size_t File_RomFS::GetSize() const {
 * @return true if successful
 */
 bool File_RomFS::SetSize(const u64 size) const {
+    LOG_WARNING(Service_FS, "Attempted to set the size of ROMFS");
    return false;
 }
diff --git a/src/core/file_sys/file_romfs.h b/src/core/file_sys/file_romfs.h
index 5196701d3..32fa6b6d3 100644
--- a/src/core/file_sys/file_romfs.h
+++ b/src/core/file_sys/file_romfs.h
@@ -6,7 +6,7 @@
 #include "common/common_types.h"
-#include "core/file_sys/file.h"
+#include "core/file_sys/file_backend.h"
 #include "core/loader/loader.h"
 ////////////////////////////////////////////////////////////////////////////////////////////////////
@@ -14,10 +14,11 @@
 namespace FileSys {
-class File_RomFS final : public File {
+class Archive_RomFS;
+class File_RomFS final : public FileBackend {
 public:
-    File_RomFS();
+    File_RomFS(const Archive_RomFS* archive) : archive(archive) {}
-    ~File_RomFS() override;
    /**
     * Open the file
@@ -62,6 +63,11 @@ public:
     * @return true if the file closed correctly
     */
    bool Close() const override;
+    void Flush() const override { }
+private:
+    const Archive_RomFS* archive;
 };
 } // namespace FileSys
diff --git a/src/core/file_sys/file_sdmc.cpp b/src/core/file_sys/file_sdmc.cpp
deleted file mode 100644
index 26204392c..000000000
--- a/src/core/file_sys/file_sdmc.cpp
+++ /dev/null
@@ -1,107 +0,0 @@
-// Copyright 2014 Citra Emulator Project
-// Licensed under GPLv2
-// Refer to the license.txt file included.
-#include <sys/stat.h>
-#include "common/common_types.h"
-#include "common/file_util.h"
-#include "core/file_sys/file_sdmc.h"
-#include "core/file_sys/archive_sdmc.h"
-////////////////////////////////////////////////////////////////////////////////////////////////////
-// FileSys namespace
-namespace FileSys {
-File_SDMC::File_SDMC(const Archive_SDMC* archive, const std::string& path, const Mode mode) {
-    // TODO(Link Mauve): normalize path into an absolute path without "..", it can currently bypass
-    // the root directory we set while opening the archive.
-    // For example, opening /../../etc/passwd can give the emulated program your users list.
-    this->path = archive->GetMountPoint() + path;
-    this->mode.hex = mode.hex;
-}
-File_SDMC::~File_SDMC() {
-    Close();
-}
-/**
- * Open the file
- * @return true if the file opened correctly
- */
-bool File_SDMC::Open() {
-    if (!mode.create_flag && !FileUtil::Exists(path)) {
-        ERROR_LOG(FILESYS, "Non-existing file %s can’t be open without mode create.", path.c_str());
-        return false;
-    }
-    std::string mode_string;
-    if (mode.read_flag && mode.write_flag)
-        mode_string = "w+";
-    else if (mode.read_flag)
-        mode_string = "r";
-    else if (mode.write_flag)
-        mode_string = "w";
-    file = new FileUtil::IOFile(path, mode_string.c_str());
-    return true;
-}
-/**
- * Read data from the file
- * @param offset Offset in bytes to start reading data from
- * @param length Length in bytes of data to read from file
- * @param buffer Buffer to read data into
- * @return Number of bytes read
- */
-size_t File_SDMC::Read(const u64 offset, const u32 length, u8* buffer) const {
-    file->Seek(offset, SEEK_SET);
-    return file->ReadBytes(buffer, length);
-}
-/**
- * Write data to the file
- * @param offset Offset in bytes to start writing data to
- * @param length Length in bytes of data to write to file
- * @param flush The flush parameters (0 == do not flush)
- * @param buffer Buffer to read data from
- * @return Number of bytes written
- */
-size_t File_SDMC::Write(const u64 offset, const u32 length, const u32 flush, const u8* buffer) const {
-    file->Seek(offset, SEEK_SET);
-    size_t written = file->WriteBytes(buffer, length);
-    if (flush)
-        file->Flush();
-    return written;
-}
-/**
- * Get the size of the file in bytes
- * @return Size of the file in bytes
- */
-size_t File_SDMC::GetSize() const {
-    return static_cast<size_t>(file->GetSize());
-}
-/**
- * Set the size of the file in bytes
- * @param size New size of the file
- * @return true if successful
- */
-bool File_SDMC::SetSize(const u64 size) const {
-    file->Resize(size);
-    file->Flush();
-    return true;
-}
-/**
- * Close the file
- * @return true if the file closed correctly
- */
-bool File_SDMC::Close() const {
-    return file->Close();
-}
-} // namespace FileSys
diff --git a/src/core/file_sys/file_sdmc.h b/src/core/file_sys/file_sdmc.h
deleted file mode 100644
index df032f7c0..000000000
--- a/src/core/file_sys/file_sdmc.h
+++ /dev/null
@@ -1,75 +0,0 @@
-// Copyright 2014 Citra Emulator Project
-// Licensed under GPLv2
-// Refer to the license.txt file included.
-#pragma once
-#include "common/common_types.h"
-#include "common/file_util.h"
-#include "core/file_sys/file.h"
-#include "core/file_sys/archive_sdmc.h"
-#include "core/loader/loader.h"
-////////////////////////////////////////////////////////////////////////////////////////////////////
-// FileSys namespace
-namespace FileSys {
-class File_SDMC final : public File {
-public:
-    File_SDMC();
-    File_SDMC(const Archive_SDMC* archive, const std::string& path, const Mode mode);
-    ~File_SDMC() override;
-    /**
-     * Open the file
-     * @return true if the file opened correctly
-     */
-    bool Open() override;
-    /**
-     * Read data from the file
-     * @param offset Offset in bytes to start reading data from
-     * @param length Length in bytes of data to read from file
-     * @param buffer Buffer to read data into
-     * @return Number of bytes read
-     */
-    size_t Read(const u64 offset, const u32 length, u8* buffer) const override;
-    /**
-     * Write data to the file
-     * @param offset Offset in bytes to start writing data to
-     * @param length Length in bytes of data to write to file
-     * @param flush The flush parameters (0 == do not flush)
-     * @param buffer Buffer to read data from
-     * @return Number of bytes written
-     */
-    size_t Write(const u64 offset, const u32 length, const u32 flush, const u8* buffer) const override;
-    /**
-     * Get the size of the file in bytes
-     * @return Size of the file in bytes
-     */
-    size_t GetSize() const override;
-    /**
-     * Set the size of the file in bytes
-     * @param size New size of the file
-     * @return true if successful
-     */
-    bool SetSize(const u64 size) const override;
-    /**
-     * Close the file
-     * @return true if the file closed correctly
-     */
-    bool Close() const override;
-private:
-    std::string path;
-    Mode mode;
-    FileUtil::IOFile* file;
-};
-} // namespace FileSys
diff --git a/src/core/hle/config_mem.cpp b/src/core/hle/config_mem.cpp
index a45e61427..d8ba9e6cf 100644
--- a/src/core/hle/config_mem.cpp
+++ b/src/core/hle/config_mem.cpp
@@ -1,8 +1,9 @@
 // Copyright 2014 Citra Emulator Project
 // Licensed under GPLv2
-// Refer to the license.txt file included.  
+// Refer to the license.txt file included.
 #include "common/common_types.h"
+#include "common/log.h"
 #include "core/hle/config_mem.h"
@@ -54,7 +55,7 @@ inline void Read(T &var, const u32 addr) {
        break;
    default:
-        ERROR_LOG(HLE, "unknown addr=0x%08X", addr);
+        LOG_ERROR(Kernel, "unknown addr=0x%08X", addr);
    }
 }
diff --git a/src/core/hle/coprocessor.cpp b/src/core/hle/coprocessor.cpp
index 1eb33eb86..e34229a57 100644
--- a/src/core/hle/coprocessor.cpp
+++ b/src/core/hle/coprocessor.cpp
@@ -1,6 +1,6 @@
 // Copyright 2014 Citra Emulator Project
 // Licensed under GPLv2
-// Refer to the license.txt file included.  
+// Refer to the license.txt file included.
 #include "core/hle/coprocessor.h"
 #include "core/hle/hle.h"
diff --git a/src/core/hle/function_wrappers.h b/src/core/hle/function_wrappers.h
index 55eaf0621..b44479b2f 100644
--- a/src/core/hle/function_wrappers.h
+++ b/src/core/hle/function_wrappers.h
@@ -50,7 +50,7 @@ template<s32 func(u32*, u32, u32, u32, u32, u32)> void Wrap(){
 template<s32 func(s32*, u32*, s32, bool, s64)> void Wrap() {
    s32 param_1 = 0;
-    s32 retval = func(&param_1, (Handle*)Memory::GetPointer(PARAM(1)), (s32)PARAM(2), 
+    s32 retval = func(&param_1, (Handle*)Memory::GetPointer(PARAM(1)), (s32)PARAM(2),
        (PARAM(3) != 0), (((s64)PARAM(4) << 32) | PARAM(0)));
    Core::g_app_core->SetReg(1, (u32)param_1);
    FuncReturn(retval);
@@ -103,7 +103,7 @@ template<s32 func(void*)> void Wrap() {
 }
 template<s32 func(s64*, u32, void*, s32)> void Wrap(){
-    FuncReturn(func((s64*)Memory::GetPointer(PARAM(0)), PARAM(1), Memory::GetPointer(PARAM(2)), 
+    FuncReturn(func((s64*)Memory::GetPointer(PARAM(0)), PARAM(1), Memory::GetPointer(PARAM(2)),
        (s32)PARAM(3)));
 }
@@ -114,6 +114,20 @@ template<s32 func(u32*, const char*)> void Wrap() {
    FuncReturn(retval);
 }
+template<s32 func(u32*, s32, s32)> void Wrap() {
+    u32 param_1 = 0;
+    u32 retval = func(&param_1, PARAM(1), PARAM(2));
+    Core::g_app_core->SetReg(1, param_1);
+    FuncReturn(retval);
+}
+template<s32 func(s32*, u32, s32)> void Wrap() {
+    s32 param_1 = 0;
+    u32 retval = func(&param_1, PARAM(1), PARAM(2));
+    Core::g_app_core->SetReg(1, param_1);
+    FuncReturn(retval);
+}
 ////////////////////////////////////////////////////////////////////////////////////////////////////
 // Function wrappers that return type u32
diff --git a/src/core/hle/hle.cpp b/src/core/hle/hle.cpp
index b03894ad7..cc3d5255a 100644
--- a/src/core/hle/hle.cpp
+++ b/src/core/hle/hle.cpp
@@ -1,6 +1,6 @@
 // Copyright 2014 Citra Emulator Project
 // Licensed under GPLv2
-// Refer to the license.txt file included.  
+// Refer to the license.txt file included.
 #include <vector>
@@ -8,6 +8,7 @@
 #include "core/hle/hle.h"
 #include "core/hle/kernel/thread.h"
 #include "core/hle/service/service.h"
+#include "core/hle/service/fs/archive.h"
 ////////////////////////////////////////////////////////////////////////////////////////////////////
@@ -20,7 +21,7 @@ bool g_reschedule = false;  ///< If true, immediately reschedules the CPU to a n
 const FunctionDef* GetSVCInfo(u32 opcode) {
    u32 func_num = opcode & 0xFFFFFF; // 8 bits
    if (func_num > 0xFF) {
-        ERROR_LOG(HLE,"unknown svc=0x%02X", func_num); 
+        LOG_ERROR(Kernel_SVC,"unknown svc=0x%02X", func_num);
        return nullptr;
    }
    return &g_module_db[0].func_table[func_num];
@@ -35,14 +36,12 @@ void CallSVC(u32 opcode) {
    if (info->func) {
        info->func();
    } else {
-        ERROR_LOG(HLE, "unimplemented SVC function %s(..)", info->name.c_str());
+        LOG_ERROR(Kernel_SVC, "unimplemented SVC function %s(..)", info->name.c_str());
    }
 }
 void Reschedule(const char *reason) {
-#ifdef _DEBUG
+    _dbg_assert_msg_(Kernel, reason != 0 && strlen(reason) < 256, "Reschedule: Invalid or too long reason.");
-    _dbg_assert_msg_(HLE, reason != 0 && strlen(reason) < 256, "Reschedule: Invalid or too long reason.");
-#endif
    Core::g_app_core->PrepareReschedule();
    g_reschedule = true;
 }
@@ -58,18 +57,20 @@ void RegisterAllModules() {
 void Init() {
    Service::Init();
-    
+    Service::FS::ArchiveInit();
    RegisterAllModules();
-    NOTICE_LOG(HLE, "initialized OK");
+    LOG_DEBUG(Kernel, "initialized OK");
 }
 void Shutdown() {
+    Service::FS::ArchiveShutdown();
    Service::Shutdown();
    g_module_db.clear();
-    NOTICE_LOG(HLE, "shutdown OK");
+    LOG_DEBUG(Kernel, "shutdown OK");
 }
 } // namespace
diff --git a/src/core/hle/hle.h b/src/core/hle/hle.h
index bf4d84575..4ab258c69 100644
--- a/src/core/hle/hle.h
+++ b/src/core/hle/hle.h
@@ -1,6 +1,6 @@
 // Copyright 2014 Citra Emulator Project
 // Licensed under GPLv2
-// Refer to the license.txt file included.  
+// Refer to the license.txt file included.
 #pragma once
diff --git a/src/core/hle/kernel/address_arbiter.cpp b/src/core/hle/kernel/address_arbiter.cpp
index 2b21657da..9a921108d 100644
--- a/src/core/hle/kernel/address_arbiter.cpp
+++ b/src/core/hle/kernel/address_arbiter.cpp
@@ -24,23 +24,12 @@ public:
    Kernel::HandleType GetHandleType() const override { return HandleType::AddressArbiter; }
    std::string name;   ///< Name of address arbiter object (optional)
-    /**
-     * Wait for kernel object to synchronize
-     * @param wait Boolean wait set if current thread should wait as a result of sync operation
-     * @return Result of operation, 0 on success, otherwise error code
-     */
-    Result WaitSynchronization(bool* wait) override {
-        // TODO(bunnei): ImplementMe
-        ERROR_LOG(OSHLE, "(UNIMPLEMENTED)");
-        return 0;
-    }
 };
 ////////////////////////////////////////////////////////////////////////////////////////////////////
 /// Arbitrate an address
-Result ArbitrateAddress(Handle handle, ArbitrationType type, u32 address, s32 value) {
+ResultCode ArbitrateAddress(Handle handle, ArbitrationType type, u32 address, s32 value) {
    switch (type) {
    // Signal thread(s) waiting for arbitrate address...
@@ -58,16 +47,16 @@ Result ArbitrateAddress(Handle handle, ArbitrationType type, u32 address, s32 va
    // Wait current thread (acquire the arbiter)...
    case ArbitrationType::WaitIfLessThan:
        if ((s32)Memory::Read32(address) <= value) {
-            Kernel::WaitCurrentThread(WAITTYPE_ARB, handle);
+            Kernel::WaitCurrentThread(WAITTYPE_ARB, handle, address);
            HLE::Reschedule(__func__);
        }
        break;
    default:
-        ERROR_LOG(KERNEL, "unknown type=%d", type);
+        LOG_ERROR(Kernel, "unknown type=%d", type);
-        return -1;
+        return ResultCode(ErrorDescription::InvalidEnumValue, ErrorModule::Kernel, ErrorSummary::WrongArgument, ErrorLevel::Usage);
    }
-    return 0;
+    return RESULT_SUCCESS;
 }
 /// Create an address arbiter
diff --git a/src/core/hle/kernel/address_arbiter.h b/src/core/hle/kernel/address_arbiter.h
index a483fe466..8a5fb10b4 100644
--- a/src/core/hle/kernel/address_arbiter.h
+++ b/src/core/hle/kernel/address_arbiter.h
@@ -11,7 +11,7 @@
 // Address arbiters are an underlying kernel synchronization object that can be created/used via
 // supervisor calls (SVCs). They function as sort of a global lock. Typically, games/other CTR
 // applications use them as an underlying mechanism to implement thread-safe barriers, events, and
-// semphores. 
+// semphores.
 ////////////////////////////////////////////////////////////////////////////////////////////////////
 // Kernel namespace
@@ -28,7 +28,7 @@ enum class ArbitrationType : u32 {
 };
 /// Arbitrate an address
-Result ArbitrateAddress(Handle handle, ArbitrationType type, u32 address, s32 value);
+ResultCode ArbitrateAddress(Handle handle, ArbitrationType type, u32 address, s32 value);
 /// Create an address arbiter
 Handle CreateAddressArbiter(const std::string& name = "Unknown");
diff --git a/src/core/hle/kernel/archive.cpp b/src/core/hle/kernel/archive.cpp
deleted file mode 100644
index 764082d71..000000000
--- a/src/core/hle/kernel/archive.cpp
+++ /dev/null
@@ -1,436 +0,0 @@
-// Copyright 2014 Citra Emulator Project
-// Licensed under GPLv2
-// Refer to the license.txt file included.
-#include "common/common_types.h"
-#include "common/file_util.h"
-#include "common/math_util.h"
-#include "core/file_sys/archive.h"
-#include "core/file_sys/archive_sdmc.h"
-#include "core/file_sys/directory.h"
-#include "core/hle/service/service.h"
-#include "core/hle/kernel/archive.h"
-////////////////////////////////////////////////////////////////////////////////////////////////////
-// Kernel namespace
-namespace Kernel {
-// Command to access archive file
-enum class FileCommand : u32 {
-    Dummy1          = 0x000100C6,
-    Control         = 0x040100C4,
-    OpenSubFile     = 0x08010100,
-    Read            = 0x080200C2,
-    Write           = 0x08030102,
-    GetSize         = 0x08040000,
-    SetSize         = 0x08050080,
-    GetAttributes   = 0x08060000,
-    SetAttributes   = 0x08070040,
-    Close           = 0x08080000,
-    Flush           = 0x08090000,
-};
-// Command to access directory
-enum class DirectoryCommand : u32 {
-    Dummy1          = 0x000100C6,
-    Control         = 0x040100C4,
-    Read            = 0x08010042,
-    Close           = 0x08020000,
-};
-class Archive : public Object {
-public:
-    std::string GetTypeName() const override { return "Archive"; }
-    std::string GetName() const override { return name; }
-    static Kernel::HandleType GetStaticHandleType() { return HandleType::Archive; }
-    Kernel::HandleType GetHandleType() const override { return HandleType::Archive; }
-    std::string name;           ///< Name of archive (optional)
-    FileSys::Archive* backend;  ///< Archive backend interface
-    /**
-     * Synchronize kernel object 
-     * @param wait Boolean wait set if current thread should wait as a result of sync operation
-     * @return Result of operation, 0 on success, otherwise error code
-     */
-    Result SyncRequest(bool* wait) override {
-        u32* cmd_buff = Service::GetCommandBuffer();
-        FileCommand cmd = static_cast<FileCommand>(cmd_buff[0]);
-        
-        switch (cmd) {
-        // Read from archive...
-        case FileCommand::Read:
-        {
-            u64 offset  = cmd_buff[1] | ((u64)cmd_buff[2] << 32);
-            u32 length  = cmd_buff[3];
-            u32 address = cmd_buff[5];
-            // Number of bytes read
-            cmd_buff[2] = backend->Read(offset, length, Memory::GetPointer(address));
-            break;
-        }
-        // Write to archive...
-        case FileCommand::Write:
-        {
-            u64 offset  = cmd_buff[1] | ((u64)cmd_buff[2] << 32);
-            u32 length  = cmd_buff[3];
-            u32 flush   = cmd_buff[4];
-            u32 address = cmd_buff[6];
-            // Number of bytes written
-            cmd_buff[2] = backend->Write(offset, length, flush, Memory::GetPointer(address));
-            break;
-        }
-        case FileCommand::GetSize:
-        {
-            u64 filesize = (u64) backend->GetSize();
-            cmd_buff[2]  = (u32) filesize;         // Lower word
-            cmd_buff[3]  = (u32) (filesize >> 32); // Upper word
-            break;
-        }
-        case FileCommand::SetSize:
-        {
-            backend->SetSize(cmd_buff[1] | ((u64)cmd_buff[2] << 32));
-            break;
-        }
-        case FileCommand::Close:
-        {
-            DEBUG_LOG(KERNEL, "Close %s %s", GetTypeName().c_str(), GetName().c_str());
-            Kernel::g_object_pool.Destroy<Archive>(GetHandle());
-            CloseArchive(backend->GetIdCode());
-            break;
-        }
-        // Unknown command...
-        default:
-        {
-            ERROR_LOG(KERNEL, "Unknown command=0x%08X!", cmd);
-            return -1;
-        }
-        }
-        cmd_buff[1] = 0; // No error
-        return 0;
-    }
-    /**
-     * Wait for kernel object to synchronize
-     * @param wait Boolean wait set if current thread should wait as a result of sync operation
-     * @return Result of operation, 0 on success, otherwise error code
-     */
-    Result WaitSynchronization(bool* wait) override {
-        // TODO(bunnei): ImplementMe
-        ERROR_LOG(OSHLE, "(UNIMPLEMENTED)");
-        return 0;
-    }
-};
-class File : public Object {
-public:
-    std::string GetTypeName() const override { return "File"; }
-    std::string GetName() const override { return path; }
-    static Kernel::HandleType GetStaticHandleType() { return HandleType::File; }
-    Kernel::HandleType GetHandleType() const override { return HandleType::File; }
-    std::string path; ///< Path of the file
-    std::unique_ptr<FileSys::File> backend; ///< File backend interface
-    /**
-     * Synchronize kernel object
-     * @param wait Boolean wait set if current thread should wait as a result of sync operation
-     * @return Result of operation, 0 on success, otherwise error code
-     */
-    Result SyncRequest(bool* wait) override {
-        u32* cmd_buff = Service::GetCommandBuffer();
-        FileCommand cmd = static_cast<FileCommand>(cmd_buff[0]);
-        switch (cmd) {
-        // Read from file...
-        case FileCommand::Read:
-        {
-            u64 offset = cmd_buff[1] | ((u64) cmd_buff[2]) << 32;
-            u32 length  = cmd_buff[3];
-            u32 address = cmd_buff[5];
-            DEBUG_LOG(KERNEL, "Read %s %s: offset=0x%llx length=%d address=0x%x",
-                      GetTypeName().c_str(), GetName().c_str(), offset, length, address);
-            cmd_buff[2] = backend->Read(offset, length, Memory::GetPointer(address));
-            break;
-        }
-        // Write to file...
-        case FileCommand::Write:
-        {
-            u64 offset  = cmd_buff[1] | ((u64) cmd_buff[2]) << 32;
-            u32 length  = cmd_buff[3];
-            u32 flush   = cmd_buff[4];
-            u32 address = cmd_buff[6];
-            DEBUG_LOG(KERNEL, "Write %s %s: offset=0x%llx length=%d address=0x%x, flush=0x%x",
-                      GetTypeName().c_str(), GetName().c_str(), offset, length, address, flush);
-            cmd_buff[2] = backend->Write(offset, length, flush, Memory::GetPointer(address));
-            break;
-        }
-        case FileCommand::GetSize:
-        {
-            DEBUG_LOG(KERNEL, "GetSize %s %s", GetTypeName().c_str(), GetName().c_str());
-            u64 size = backend->GetSize();
-            cmd_buff[2] = (u32)size;
-            cmd_buff[3] = size >> 32;
-            break;
-        }
-        case FileCommand::SetSize:
-        {
-            u64 size = cmd_buff[1] | ((u64)cmd_buff[2] << 32);
-            DEBUG_LOG(KERNEL, "SetSize %s %s size=%llu", GetTypeName().c_str(), GetName().c_str(), size);
-            backend->SetSize(size);
-            break;
-        }
-        case FileCommand::Close:
-        {
-            DEBUG_LOG(KERNEL, "Close %s %s", GetTypeName().c_str(), GetName().c_str());
-            Kernel::g_object_pool.Destroy<File>(GetHandle());
-            break;
-        }
-        // Unknown command...
-        default:
-            ERROR_LOG(KERNEL, "Unknown command=0x%08X!", cmd);
-            cmd_buff[1] = -1; // TODO(Link Mauve): use the correct error code for that.
-            return -1;
-        }
-        cmd_buff[1] = 0; // No error
-        return 0;
-    }
-    /**
-     * Wait for kernel object to synchronize
-     * @param wait Boolean wait set if current thread should wait as a result of sync operation
-     * @return Result of operation, 0 on success, otherwise error code
-     */
-    Result WaitSynchronization(bool* wait) override {
-        // TODO(bunnei): ImplementMe
-        ERROR_LOG(OSHLE, "(UNIMPLEMENTED)");
-        return 0;
-    }
-};
-class Directory : public Object {
-public:
-    std::string GetTypeName() const override { return "Directory"; }
-    std::string GetName() const override { return path; }
-    static Kernel::HandleType GetStaticHandleType() { return HandleType::Directory; }
-    Kernel::HandleType GetHandleType() const override { return HandleType::Directory; }
-    std::string path; ///< Path of the directory
-    std::unique_ptr<FileSys::Directory> backend; ///< File backend interface
-    /**
-     * Synchronize kernel object
-     * @param wait Boolean wait set if current thread should wait as a result of sync operation
-     * @return Result of operation, 0 on success, otherwise error code
-     */
-    Result SyncRequest(bool* wait) override {
-        u32* cmd_buff = Service::GetCommandBuffer();
-        DirectoryCommand cmd = static_cast<DirectoryCommand>(cmd_buff[0]);
-        switch (cmd) {
-        // Read from directory...
-        case DirectoryCommand::Read:
-        {
-            u32 count = cmd_buff[1];
-            u32 address = cmd_buff[3];
-            FileSys::Entry* entries = reinterpret_cast<FileSys::Entry*>(Memory::GetPointer(address));
-            DEBUG_LOG(KERNEL, "Read %s %s: count=%d", GetTypeName().c_str(), GetName().c_str(), count);
-            // Number of entries actually read
-            cmd_buff[2] = backend->Read(count, entries);
-            break;
-        }
-        case DirectoryCommand::Close:
-        {
-            DEBUG_LOG(KERNEL, "Close %s %s", GetTypeName().c_str(), GetName().c_str());
-            Kernel::g_object_pool.Destroy<Directory>(GetHandle());
-            break;
-        }
-        // Unknown command...
-        default:
-            ERROR_LOG(KERNEL, "Unknown command=0x%08X!", cmd);
-            cmd_buff[1] = -1; // TODO(Link Mauve): use the correct error code for that.
-            return -1;
-        }
-        cmd_buff[1] = 0; // No error
-        return 0;
-    }
-    /**
-     * Wait for kernel object to synchronize
-     * @param wait Boolean wait set if current thread should wait as a result of sync operation
-     * @return Result of operation, 0 on success, otherwise error code
-     */
-    Result WaitSynchronization(bool* wait) override {
-        // TODO(bunnei): ImplementMe
-        ERROR_LOG(OSHLE, "(UNIMPLEMENTED)");
-        return 0;
-    }
-};
-////////////////////////////////////////////////////////////////////////////////////////////////////
-std::map<FileSys::Archive::IdCode, Handle> g_archive_map; ///< Map of file archives by IdCode
-/**
- * Opens an archive
- * @param id_code IdCode of the archive to open
- * @return Handle to archive if it exists, otherwise a null handle (0)
- */
-Handle OpenArchive(FileSys::Archive::IdCode id_code) {
-    auto itr = g_archive_map.find(id_code);
-    if (itr == g_archive_map.end()) {
-        return 0;
-    }
-    return itr->second;
-}
-/**
- * Closes an archive
- * @param id_code IdCode of the archive to open
- * @return Result of operation, 0 on success, otherwise error code
- */
-Result CloseArchive(FileSys::Archive::IdCode id_code) {
-    if (1 != g_archive_map.erase(id_code)) {
-        ERROR_LOG(KERNEL, "Cannot close archive %d", (int) id_code);
-        return -1;
-    }
-    INFO_LOG(KERNEL, "Closed archive %d", (int) id_code);
-    return 0;
-}
-/**
- * Mounts an archive
- * @param archive Pointer to the archive to mount
- * @return Result of operation, 0 on success, otherwise error code
- */
-Result MountArchive(Archive* archive) {
-    FileSys::Archive::IdCode id_code = archive->backend->GetIdCode();
-    if (0 != OpenArchive(id_code)) {
-        ERROR_LOG(KERNEL, "Cannot mount two archives with the same ID code! (%d)", (int) id_code);
-        return -1;
-    }
-    g_archive_map[id_code] = archive->GetHandle();
-    INFO_LOG(KERNEL, "Mounted archive %s", archive->GetName().c_str());
-    return 0;
-}
-/**
- * Creates an Archive
- * @param handle Handle to newly created archive object
- * @param backend File system backend interface to the archive
- * @param name Optional name of Archive
- * @return Newly created Archive object
- */
-Archive* CreateArchive(Handle& handle, FileSys::Archive* backend, const std::string& name) {
-    Archive* archive = new Archive;
-    handle = Kernel::g_object_pool.Create(archive);
-    archive->name = name;
-    archive->backend = backend;
-    MountArchive(archive);
-    
-    return archive;
-}
-/**
- * Creates an Archive
- * @param backend File system backend interface to the archive
- * @param name Optional name of Archive
- * @return Handle to newly created Archive object
- */
-Handle CreateArchive(FileSys::Archive* backend, const std::string& name) {
-    Handle handle;
-    CreateArchive(handle, backend, name);
-    return handle;
-}
-/**
- * Open a File from an Archive
- * @param archive_handle Handle to an open Archive object
- * @param path Path to the File inside of the Archive
- * @param mode Mode under which to open the File
- * @return Opened File object
- */
-Handle OpenFileFromArchive(Handle archive_handle, const std::string& path, const FileSys::Mode mode) {
-    File* file = new File;
-    Handle handle = Kernel::g_object_pool.Create(file);
-    Archive* archive = Kernel::g_object_pool.GetFast<Archive>(archive_handle);
-    file->path = path;
-    file->backend = archive->backend->OpenFile(path, mode);
-    if (!file->backend)
-        return 0;
-    return handle;
-}
-/**
- * Create a Directory from an Archive
- * @param archive_handle Handle to an open Archive object
- * @param path Path to the Directory inside of the Archive
- * @return Opened Directory object
- */
-Result CreateDirectoryFromArchive(Handle archive_handle, const std::string& path) {
-    Archive* archive = Kernel::g_object_pool.GetFast<Archive>(archive_handle);
-    if (archive == nullptr)
-        return -1;
-    if (archive->backend->CreateDirectory(path))
-        return 0;
-    return -1;
-}
-/**
- * Open a Directory from an Archive
- * @param archive_handle Handle to an open Archive object
- * @param path Path to the Directory inside of the Archive
- * @return Opened Directory object
- */
-Handle OpenDirectoryFromArchive(Handle archive_handle, const std::string& path) {
-    Directory* directory = new Directory;
-    Handle handle = Kernel::g_object_pool.Create(directory);
-    Archive* archive = Kernel::g_object_pool.GetFast<Archive>(archive_handle);
-    directory->path = path;
-    directory->backend = archive->backend->OpenDirectory(path);
-    return handle;
-}
-/// Initialize archives
-void ArchiveInit() {
-    g_archive_map.clear();
-    // TODO(Link Mauve): Add the other archive types (see here for the known types:
-    // http://3dbrew.org/wiki/FS:OpenArchive#Archive_idcodes).  Currently the only half-finished
-    // archive type is SDMC, so it is the only one getting exposed.
-    std::string sdmc_directory = FileUtil::GetUserPath(D_SDMC_IDX);
-    auto archive = new FileSys::Archive_SDMC(sdmc_directory);
-    if (archive->Initialize())
-        CreateArchive(archive, "SDMC");
-    else
-        ERROR_LOG(KERNEL, "Can't instantiate SDMC archive with path %s", sdmc_directory.c_str());
-}
-/// Shutdown archives
-void ArchiveShutdown() {
-    g_archive_map.clear();
-}
-} // namespace Kernel
diff --git a/src/core/hle/kernel/archive.h b/src/core/hle/kernel/archive.h
deleted file mode 100644
index 0230996b6..000000000
--- a/src/core/hle/kernel/archive.h
+++ /dev/null
@@ -1,70 +0,0 @@
-// Copyright 2014 Citra Emulator Project
-// Licensed under GPLv2
-// Refer to the license.txt file included.
-#pragma once
-#include "common/common_types.h"
-#include "core/hle/kernel/kernel.h"
-#include "core/file_sys/archive.h"
-////////////////////////////////////////////////////////////////////////////////////////////////////
-// Kernel namespace
-namespace Kernel {
-/**
- * Opens an archive
- * @param id_code IdCode of the archive to open
- * @return Handle to archive if it exists, otherwise a null handle (0)
- */
-Handle OpenArchive(FileSys::Archive::IdCode id_code);
-/**
- * Closes an archive
- * @param id_code IdCode of the archive to open
- * @return true if it worked fine
- */
-Result CloseArchive(FileSys::Archive::IdCode id_code);
-/**
- * Creates an Archive
- * @param backend File system backend interface to the archive
- * @param name Optional name of Archive
- * @return Handle to newly created Archive object
- */
-Handle CreateArchive(FileSys::Archive* backend, const std::string& name);
-/**
- * Open a File from an Archive
- * @param archive_handle Handle to an open Archive object
- * @param path Path to the File inside of the Archive
- * @param mode Mode under which to open the File
- * @return Opened File object
- */
-Handle OpenFileFromArchive(Handle archive_handle, const std::string& name, const FileSys::Mode mode);
-/**
- * Create a Directory from an Archive
- * @param archive_handle Handle to an open Archive object
- * @param path Path to the Directory inside of the Archive
- * @return Whether creation of directory succeeded
- */
-Result CreateDirectoryFromArchive(Handle archive_handle, const std::string& name);
-/**
- * Open a Directory from an Archive
- * @param archive_handle Handle to an open Archive object
- * @param path Path to the Directory inside of the Archive
- * @return Opened Directory object
- */
-Handle OpenDirectoryFromArchive(Handle archive_handle, const std::string& name);
-/// Initialize archives
-void ArchiveInit();
-/// Shutdown archives
-void ArchiveShutdown();
-} // namespace FileSys
diff --git a/src/core/hle/kernel/event.cpp b/src/core/hle/kernel/event.cpp
index 45ed79be8..288080209 100644
--- a/src/core/hle/kernel/event.cpp
+++ b/src/core/hle/kernel/event.cpp
@@ -1,6 +1,6 @@
 // Copyright 2014 Citra Emulator Project
 // Licensed under GPLv2
-// Refer to the license.txt file included.  
+// Refer to the license.txt file included.
 #include <map>
 #include <algorithm>
@@ -30,13 +30,8 @@ public:
    std::vector<Handle> waiting_threads;    ///< Threads that are waiting for the event
    std::string name;                       ///< Name of event (optional)
-    /**
+    ResultVal<bool> WaitSynchronization() override {
-     * Wait for kernel object to synchronize
+        bool wait = locked;
-     * @param wait Boolean wait set if current thread should wait as a result of sync operation
-     * @return Result of operation, 0 on success, otherwise error code
-     */
-    Result WaitSynchronization(bool* wait) override {
-        *wait = locked;
        if (locked) {
            Handle thread = GetCurrentThreadHandle();
            if (std::find(waiting_threads.begin(), waiting_threads.end(), thread) == waiting_threads.end()) {
@@ -47,7 +42,7 @@ public:
        if (reset_type != RESETTYPE_STICKY && !permanent_locked) {
            locked = true;
        }
-        return 0;
+        return MakeResult<bool>(wait);
    }
 };
@@ -57,12 +52,12 @@ public:
 * @param permanent_locked Boolean permanent locked value to set event
 * @return Result of operation, 0 on success, otherwise error code
 */
-Result SetPermanentLock(Handle handle, const bool permanent_locked) {
+ResultCode SetPermanentLock(Handle handle, const bool permanent_locked) {
-    Event* evt = g_object_pool.GetFast<Event>(handle);
+    Event* evt = g_object_pool.Get<Event>(handle);
-    _assert_msg_(KERNEL, (evt != nullptr), "called, but event is nullptr!");
+    if (evt == nullptr) return InvalidHandle(ErrorModule::Kernel);
    evt->permanent_locked = permanent_locked;
-    return 0;
+    return RESULT_SUCCESS;
 }
 /**
@@ -71,14 +66,14 @@ Result SetPermanentLock(Handle handle, const bool permanent_locked) {
 * @param locked Boolean locked value to set event
 * @return Result of operation, 0 on success, otherwise error code
 */
-Result SetEventLocked(const Handle handle, const bool locked) {
+ResultCode SetEventLocked(const Handle handle, const bool locked) {
-    Event* evt = g_object_pool.GetFast<Event>(handle);
+    Event* evt = g_object_pool.Get<Event>(handle);
-    _assert_msg_(KERNEL, (evt != nullptr), "called, but event is nullptr!");
+    if (evt == nullptr) return InvalidHandle(ErrorModule::Kernel);
    if (!evt->permanent_locked) {
        evt->locked = locked;
    }
-    return 0;
+    return RESULT_SUCCESS;
 }
 /**
@@ -86,16 +81,16 @@ Result SetEventLocked(const Handle handle, const bool locked) {
 * @param handle Handle to event to signal
 * @return Result of operation, 0 on success, otherwise error code
 */
-Result SignalEvent(const Handle handle) {
+ResultCode SignalEvent(const Handle handle) {
-    Event* evt = g_object_pool.GetFast<Event>(handle);
+    Event* evt = g_object_pool.Get<Event>(handle);
-    _assert_msg_(KERNEL, (evt != nullptr), "called, but event is nullptr!");
+    if (evt == nullptr) return InvalidHandle(ErrorModule::Kernel);
    // Resume threads waiting for event to signal
    bool event_caught = false;
    for (size_t i = 0; i < evt->waiting_threads.size(); ++i) {
        ResumeThreadFromWait( evt->waiting_threads[i]);
-        // If any thread is signalled awake by this event, assume the event was "caught" and reset 
+        // If any thread is signalled awake by this event, assume the event was "caught" and reset
        // the event. This will result in the next thread waiting on the event to block. Otherwise,
        // the event will not be reset, and the next thread to call WaitSynchronization on it will
        // not block. Not sure if this is correct behavior, but it seems to work.
@@ -106,7 +101,7 @@ Result SignalEvent(const Handle handle) {
    if (!evt->permanent_locked) {
        evt->locked = event_caught;
    }
-    return 0;
+    return RESULT_SUCCESS;
 }
 /**
@@ -114,14 +109,14 @@ Result SignalEvent(const Handle handle) {
 * @param handle Handle to event to clear
 * @return Result of operation, 0 on success, otherwise error code
 */
-Result ClearEvent(Handle handle) {
+ResultCode ClearEvent(Handle handle) {
-    Event* evt = g_object_pool.GetFast<Event>(handle);
+    Event* evt = g_object_pool.Get<Event>(handle);
-    _assert_msg_(KERNEL, (evt != nullptr), "called, but event is nullptr!");
+    if (evt == nullptr) return InvalidHandle(ErrorModule::Kernel);
    if (!evt->permanent_locked) {
        evt->locked = true;
    }
-    return 0;
+    return RESULT_SUCCESS;
 }
 /**
diff --git a/src/core/hle/kernel/event.h b/src/core/hle/kernel/event.h
index c39b33180..73aec4e79 100644
--- a/src/core/hle/kernel/event.h
+++ b/src/core/hle/kernel/event.h
@@ -1,6 +1,6 @@
 // Copyright 2014 Citra Emulator Project
 // Licensed under GPLv2
-// Refer to the license.txt file included.  
+// Refer to the license.txt file included.
 #pragma once
@@ -15,31 +15,27 @@ namespace Kernel {
 * Changes whether an event is locked or not
 * @param handle Handle to event to change
 * @param locked Boolean locked value to set event
- * @return Result of operation, 0 on success, otherwise error code
 */
-Result SetEventLocked(const Handle handle, const bool locked);
+ResultCode SetEventLocked(const Handle handle, const bool locked);
 /**
 * Hackish function to set an events permanent lock state, used to pass through synch blocks
 * @param handle Handle to event to change
 * @param permanent_locked Boolean permanent locked value to set event
- * @return Result of operation, 0 on success, otherwise error code
 */
-Result SetPermanentLock(Handle handle, const bool permanent_locked);
+ResultCode SetPermanentLock(Handle handle, const bool permanent_locked);
 /**
 * Signals an event
 * @param handle Handle to event to signal
- * @return Result of operation, 0 on success, otherwise error code
 */
-Result SignalEvent(const Handle handle);
+ResultCode SignalEvent(const Handle handle);
 /**
 * Clears an event
 * @param handle Handle to event to clear
- * @return Result of operation, 0 on success, otherwise error code
 */
-Result ClearEvent(Handle handle);
+ResultCode ClearEvent(Handle handle);
 /**
 * Creates an event
diff --git a/src/core/hle/kernel/kernel.cpp b/src/core/hle/kernel/kernel.cpp
index 88cbc1af5..6a690e915 100644
--- a/src/core/hle/kernel/kernel.cpp
+++ b/src/core/hle/kernel/kernel.cpp
@@ -1,18 +1,20 @@
 // Copyright 2014 Citra Emulator Project / PPSSPP Project
 // Licensed under GPLv2
-// Refer to the license.txt file included.  
+// Refer to the license.txt file included.
+#include <algorithm>
 #include "common/common.h"
 #include "core/core.h"
 #include "core/hle/kernel/kernel.h"
 #include "core/hle/kernel/thread.h"
-#include "core/hle/kernel/archive.h"
 namespace Kernel {
 Handle g_main_thread = 0;
 ObjectPool g_object_pool;
+u64 g_program_id = 0;
 ObjectPool::ObjectPool() {
    next_id = INITIAL_NEXT_ID;
@@ -33,11 +35,11 @@ Handle ObjectPool::Create(Object* obj, int range_bottom, int range_top) {
            return i + HANDLE_OFFSET;
        }
    }
-    ERROR_LOG(HLE, "Unable to allocate kernel object, too many objects slots in use.");
+    LOG_ERROR(Kernel, "Unable to allocate kernel object, too many objects slots in use.");
    return 0;
 }
-bool ObjectPool::IsValid(Handle handle) {
+bool ObjectPool::IsValid(Handle handle) const {
    int index = handle - HANDLE_OFFSET;
    if (index < 0)
        return false;
@@ -60,7 +62,7 @@ void ObjectPool::Clear() {
 Object* &ObjectPool::operator [](Handle handle)
 {
-    _dbg_assert_msg_(KERNEL, IsValid(handle), "GRABBING UNALLOCED KERNEL OBJ");
+    _dbg_assert_msg_(Kernel, IsValid(handle), "GRABBING UNALLOCED KERNEL OBJ");
    return pool[handle - HANDLE_OFFSET];
 }
@@ -68,37 +70,30 @@ void ObjectPool::List() {
    for (int i = 0; i < MAX_COUNT; i++) {
        if (occupied[i]) {
            if (pool[i]) {
-                INFO_LOG(KERNEL, "KO %i: %s \"%s\"", i + HANDLE_OFFSET, pool[i]->GetTypeName().c_str(), 
+                LOG_DEBUG(Kernel, "KO %i: %s \"%s\"", i + HANDLE_OFFSET, pool[i]->GetTypeName().c_str(),
                    pool[i]->GetName().c_str());
            }
        }
    }
 }
-int ObjectPool::GetCount() {
+int ObjectPool::GetCount() const {
-    int count = 0;
+    return std::count(occupied.begin(), occupied.end(), true);
-    for (int i = 0; i < MAX_COUNT; i++) {
-        if (occupied[i])
-            count++;
-    }
-    return count;
 }
 Object* ObjectPool::CreateByIDType(int type) {
-    ERROR_LOG(COMMON, "Unimplemented: %d.", type);
+    LOG_ERROR(Kernel, "Unimplemented: %d.", type);
    return nullptr;
 }
 /// Initialize the kernel
 void Init() {
    Kernel::ThreadingInit();
-    Kernel::ArchiveInit();
 }
 /// Shutdown the kernel
 void Shutdown() {
    Kernel::ThreadingShutdown();
-    Kernel::ArchiveShutdown();
    g_object_pool.Clear(); // Free all kernel objects
 }
@@ -109,8 +104,6 @@ void Shutdown() {
 * @return True on success, otherwise false
 */
 bool LoadExec(u32 entry_point) {
-    Init();
-    
    Core::g_app_core->SetPC(entry_point);
    // 0x30 is the typical main thread priority I've seen used so far
diff --git a/src/core/hle/kernel/kernel.h b/src/core/hle/kernel/kernel.h
index 867d1b89c..7123485be 100644
--- a/src/core/hle/kernel/kernel.h
+++ b/src/core/hle/kernel/kernel.h
@@ -1,12 +1,13 @@
 // Copyright 2014 Citra Emulator Project / PPSSPP Project
 // Licensed under GPLv2
-// Refer to the license.txt file included.  
+// Refer to the license.txt file included.
 #pragma once
 #include <array>
 #include <string>
 #include "common/common.h"
+#include "core/hle/result.h"
 typedef u32 Handle;
 typedef s32 Result;
@@ -21,7 +22,7 @@ enum KernelHandle {
 enum class HandleType : u32 {
    Unknown         = 0,
    Port            = 1,
-    Service         = 2,
+    Session         = 2,
    Event           = 3,
    Mutex           = 4,
    SharedMemory    = 5,
@@ -29,12 +30,9 @@ enum class HandleType : u32 {
    Thread          = 7,
    Process         = 8,
    AddressArbiter  = 9,
-    File            = 10,
+    Semaphore       = 10,
-    Semaphore       = 11,
-    Archive         = 12,
-    Directory       = 13,
 };
-    
 enum {
    DEFAULT_STACK_SIZE  = 0x4000,
 };
@@ -52,21 +50,13 @@ public:
    virtual Kernel::HandleType GetHandleType() const = 0;
    /**
-     * Synchronize kernel object 
+     * Wait for kernel object to synchronize.
-     * @param wait Boolean wait set if current thread should wait as a result of sync operation
+     * @return True if the current thread should wait as a result of the wait
-     * @return Result of operation, 0 on success, otherwise error code
     */
-    virtual Result SyncRequest(bool* wait) {
+    virtual ResultVal<bool> WaitSynchronization() {
-        ERROR_LOG(KERNEL, "(UNIMPLEMENTED)");
+        LOG_ERROR(Kernel, "(UNIMPLEMENTED)");
-        return -1;
+        return UnimplementedFunction(ErrorModule::Kernel);
    }
-    /**
-     * Wait for kernel object to synchronize
-     * @param wait Boolean wait set if current thread should wait as a result of sync operation
-     * @return Result of operation, 0 on success, otherwise error code
-     */
-    virtual Result WaitSynchronization(bool* wait) = 0;
 };
 class ObjectPool : NonCopyable {
@@ -80,38 +70,29 @@ public:
    static Object* CreateByIDType(int type);
    template <class T>
-    u32 Destroy(Handle handle) {
+    void Destroy(Handle handle) {
-        u32 error;
+        if (Get<T>(handle)) {
-        if (Get<T>(handle, error)) {
            occupied[handle - HANDLE_OFFSET] = false;
            delete pool[handle - HANDLE_OFFSET];
        }
-        return error;
+    }
-    };
-    bool IsValid(Handle handle);
+    bool IsValid(Handle handle) const;
    template <class T>
-    T* Get(Handle handle, u32& outError) {
+    T* Get(Handle handle) {
        if (handle < HANDLE_OFFSET || handle >= HANDLE_OFFSET + MAX_COUNT || !occupied[handle - HANDLE_OFFSET]) {
-            // Tekken 6 spams 0x80020001 gets wrong with no ill effects, also on the real PSP
+            if (handle != 0) {
-            if (handle != 0 && (u32)handle != 0x80020001) {
+                LOG_ERROR(Kernel, "Bad object handle %08x", handle);
-                WARN_LOG(KERNEL, "Kernel: Bad object handle %i (%08x)", handle, handle);
            }
-            outError = 0;//T::GetMissingErrorCode();
+            return nullptr;
-            return 0;
        } else {
-            // Previously we had a dynamic_cast here, but since RTTI was disabled traditionally,
+            Object* t = pool[handle - HANDLE_OFFSET];
-            // it just acted as a static case and everything worked. This means that we will never
+            if (t->GetHandleType() != T::GetStaticHandleType()) {
-            // see the Wrong type object error below, but we'll just have to live with that danger.
+                LOG_ERROR(Kernel, "Wrong object type for %08x", handle);
-            T* t = static_cast<T*>(pool[handle - HANDLE_OFFSET]);
+                return nullptr;
-            if (t == 0 || t->GetHandleType() != T::GetStaticHandleType()) {
-                WARN_LOG(KERNEL, "Kernel: Wrong object type for %i (%08x)", handle, handle);
-                outError = 0;//T::GetMissingErrorCode();
-                return 0;
            }
-            outError = 0;//SCE_KERNEL_ERROR_OK;
+            return static_cast<T*>(t);
-            return t;
        }
    }
@@ -119,7 +100,7 @@ public:
    template <class T>
    T *GetFast(Handle handle) {
        const Handle realHandle = handle - HANDLE_OFFSET;
-        _dbg_assert_(KERNEL, realHandle >= 0 && realHandle < MAX_COUNT && occupied[realHandle]);
+        _dbg_assert_(Kernel, realHandle >= 0 && realHandle < MAX_COUNT && occupied[realHandle]);
        return static_cast<T*>(pool[realHandle]);
    }
@@ -139,9 +120,9 @@ public:
    }
    bool GetIDType(Handle handle, HandleType* type) const {
-        if ((handle < HANDLE_OFFSET) || (handle >= HANDLE_OFFSET + MAX_COUNT) || 
+        if ((handle < HANDLE_OFFSET) || (handle >= HANDLE_OFFSET + MAX_COUNT) ||
-            !occupied[handle - HANDLE_OFFSET]) {
+                !occupied[handle - HANDLE_OFFSET]) {
-            ERROR_LOG(KERNEL, "Kernel: Bad object handle %i (%08x)", handle, handle);
+            LOG_ERROR(Kernel, "Bad object handle %08X", handle);
            return false;
        }
        Object* t = pool[handle - HANDLE_OFFSET];
@@ -152,10 +133,10 @@ public:
    Object* &operator [](Handle handle);
    void List();
    void Clear();
-    int GetCount();
+    int GetCount() const;
 private:
-    
    enum {
        MAX_COUNT       = 0x1000,
        HANDLE_OFFSET   = 0x100,
@@ -170,6 +151,12 @@ private:
 extern ObjectPool g_object_pool;
 extern Handle g_main_thread;
+/// The ID code of the currently running game
+/// TODO(Subv): This variable should not be here, 
+/// we need a way to store information about the currently loaded application 
+/// for later query during runtime, maybe using the LDR service?
+extern u64 g_program_id;
 /// Initialize the kernel
 void Init();
diff --git a/src/core/hle/kernel/mutex.cpp b/src/core/hle/kernel/mutex.cpp
index fcfd061ac..5a173e129 100644
--- a/src/core/hle/kernel/mutex.cpp
+++ b/src/core/hle/kernel/mutex.cpp
@@ -1,6 +1,6 @@
 // Copyright 2014 Citra Emulator Project
 // Licensed under GPLv2
-// Refer to the license.txt file included.  
+// Refer to the license.txt file included.
 #include <map>
 #include <vector>
@@ -27,32 +27,7 @@ public:
    std::vector<Handle> waiting_threads;        ///< Threads that are waiting for the mutex
    std::string name;                           ///< Name of mutex (optional)
-    /**
+    ResultVal<bool> WaitSynchronization() override;
-     * Synchronize kernel object 
-     * @param wait Boolean wait set if current thread should wait as a result of sync operation
-     * @return Result of operation, 0 on success, otherwise error code
-     */
-    Result SyncRequest(bool* wait) override {
-        // TODO(bunnei): ImplementMe
-        locked = true;
-        return 0;
-    }
-    /**
-     * Wait for kernel object to synchronize
-     * @param wait Boolean wait set if current thread should wait as a result of sync operation
-     * @return Result of operation, 0 on success, otherwise error code
-     */
-    Result WaitSynchronization(bool* wait) override {
-        // TODO(bunnei): ImplementMe
-        *wait = locked;
-        if (locked) {
-            Kernel::WaitCurrentThread(WAITTYPE_MUTEX, GetHandle());
-        }
-        return 0;
-    }
 };
 ////////////////////////////////////////////////////////////////////////////////////////////////////
@@ -60,21 +35,46 @@ public:
 typedef std::multimap<Handle, Handle> MutexMap;
 static MutexMap g_mutex_held_locks;
-void MutexAcquireLock(Mutex* mutex, Handle thread) {
+/**
+ * Acquires the specified mutex for the specified thread
+ * @param mutex Mutex that is to be acquired
+ * @param thread Thread that will acquired
+ */
+void MutexAcquireLock(Mutex* mutex, Handle thread = GetCurrentThreadHandle()) {
    g_mutex_held_locks.insert(std::make_pair(thread, mutex->GetHandle()));
    mutex->lock_thread = thread;
 }
-void MutexAcquireLock(Mutex* mutex) {
+bool ReleaseMutexForThread(Mutex* mutex, Handle thread) {
-    Handle thread = GetCurrentThreadHandle();
    MutexAcquireLock(mutex, thread);
+    Kernel::ResumeThreadFromWait(thread);
+    return true;
+}
+/**
+ * Resumes a thread waiting for the specified mutex
+ * @param mutex The mutex that some thread is waiting on
+ */
+void ResumeWaitingThread(Mutex* mutex) {
+    // Find the next waiting thread for the mutex...
+    if (mutex->waiting_threads.empty()) {
+        // Reset mutex lock thread handle, nothing is waiting
+        mutex->locked = false;
+        mutex->lock_thread = -1;
+    }
+    else {
+        // Resume the next waiting thread and re-lock the mutex
+        std::vector<Handle>::iterator iter = mutex->waiting_threads.begin();
+        ReleaseMutexForThread(mutex, *iter);
+        mutex->waiting_threads.erase(iter);
+    }
 }
 void MutexEraseLock(Mutex* mutex) {
    Handle handle = mutex->GetHandle();
    auto locked = g_mutex_held_locks.equal_range(mutex->lock_thread);
    for (MutexMap::iterator iter = locked.first; iter != locked.second; ++iter) {
-        if ((*iter).second == handle) {
+        if (iter->second == handle) {
            g_mutex_held_locks.erase(iter);
            break;
        }
@@ -82,6 +82,19 @@ void MutexEraseLock(Mutex* mutex) {
    mutex->lock_thread = -1;
 }
+void ReleaseThreadMutexes(Handle thread) {
+    auto locked = g_mutex_held_locks.equal_range(thread);
+    
+    // Release every mutex that the thread holds, and resume execution on the waiting threads
+    for (MutexMap::iterator iter = locked.first; iter != locked.second; ++iter) {
+        Mutex* mutex = g_object_pool.GetFast<Mutex>(iter->second);
+        ResumeWaitingThread(mutex);
+    }
+    // Erase all the locks that this thread holds
+    g_mutex_held_locks.erase(thread);
+}
 bool LockMutex(Mutex* mutex) {
    // Mutex alread locked?
    if (mutex->locked) {
@@ -91,43 +104,27 @@ bool LockMutex(Mutex* mutex) {
    return true;
 }
-bool ReleaseMutexForThread(Mutex* mutex, Handle thread) {
-    MutexAcquireLock(mutex, thread);
-    Kernel::ResumeThreadFromWait(thread);
-    return true;
-}
 bool ReleaseMutex(Mutex* mutex) {
    MutexEraseLock(mutex);
-    bool woke_threads = false;
+    ResumeWaitingThread(mutex);
+    return true;
-    // Find the next waiting thread for the mutex...
-    while (!woke_threads && !mutex->waiting_threads.empty()) {
-        std::vector<Handle>::iterator iter = mutex->waiting_threads.begin();
-        woke_threads |= ReleaseMutexForThread(mutex, *iter);
-        mutex->waiting_threads.erase(iter);
-    }
-    // Reset mutex lock thread handle, nothing is waiting
-    if (!woke_threads) {
-        mutex->locked = false;
-        mutex->lock_thread = -1;
-    }
-    return woke_threads;
 }
 /**
 * Releases a mutex
 * @param handle Handle to mutex to release
 */
-Result ReleaseMutex(Handle handle) {
+ResultCode ReleaseMutex(Handle handle) {
-    Mutex* mutex = Kernel::g_object_pool.GetFast<Mutex>(handle);
+    Mutex* mutex = Kernel::g_object_pool.Get<Mutex>(handle);
+    if (mutex == nullptr) return InvalidHandle(ErrorModule::Kernel);
-    _assert_msg_(KERNEL, (mutex != nullptr), "ReleaseMutex tried to release a nullptr mutex!");
    if (!ReleaseMutex(mutex)) {
-        return -1;
+        // TODO(yuriks): Verify error code, this one was pulled out of thin air. I'm not even sure
+        // what error condition this is supposed to be signaling.
+        return ResultCode(ErrorDescription::AlreadyDone, ErrorModule::Kernel,
+                ErrorSummary::NothingHappened, ErrorLevel::Temporary);
    }
-    return 0;
+    return RESULT_SUCCESS;
 }
 /**
@@ -167,4 +164,17 @@ Handle CreateMutex(bool initial_locked, const std::string& name) {
    return handle;
 }
+ResultVal<bool> Mutex::WaitSynchronization() {
+    bool wait = locked;
+    if (locked) {
+        Kernel::WaitCurrentThread(WAITTYPE_MUTEX, GetHandle());
+    }
+    else {
+        // Lock the mutex when the first thread accesses it
+        locked = true;
+        MutexAcquireLock(this);
+    }
+    return MakeResult<bool>(wait);
+}
 } // namespace
diff --git a/src/core/hle/kernel/mutex.h b/src/core/hle/kernel/mutex.h
index 7d7b5137e..7f4909a6e 100644
--- a/src/core/hle/kernel/mutex.h
+++ b/src/core/hle/kernel/mutex.h
@@ -1,6 +1,6 @@
 // Copyright 2014 Citra Emulator Project
 // Licensed under GPLv2
-// Refer to the license.txt file included.  
+// Refer to the license.txt file included.
 #pragma once
@@ -13,9 +13,8 @@ namespace Kernel {
 /**
 * Releases a mutex
 * @param handle Handle to mutex to release
- * @return Result of operation, 0 on success, otherwise error code
 */
-Result ReleaseMutex(Handle handle);
+ResultCode ReleaseMutex(Handle handle);
 /**
 * Creates a mutex
@@ -25,4 +24,10 @@ Result ReleaseMutex(Handle handle);
 */
 Handle CreateMutex(bool initial_locked, const std::string& name="Unknown");
+/**
+ * Releases all the mutexes held by the specified thread
+ * @param thread Thread that is holding the mutexes
+ */
+void ReleaseThreadMutexes(Handle thread);
 } // namespace
diff --git a/src/core/hle/kernel/semaphore.cpp b/src/core/hle/kernel/semaphore.cpp
new file mode 100644
index 000000000..6f56da8a9
--- /dev/null
+++ b/src/core/hle/kernel/semaphore.cpp
@@ -0,0 +1,94 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2+
+// Refer to the license.txt file included.
+#include <queue>
+#include "common/common.h"
+#include "core/hle/kernel/kernel.h"
+#include "core/hle/kernel/semaphore.h"
+#include "core/hle/kernel/thread.h"
+namespace Kernel {
+class Semaphore : public Object {
+public:
+    std::string GetTypeName() const override { return "Semaphore"; }
+    std::string GetName() const override { return name; }
+    static Kernel::HandleType GetStaticHandleType() { return Kernel::HandleType::Semaphore; }
+    Kernel::HandleType GetHandleType() const override { return Kernel::HandleType::Semaphore; }
+    u32 max_count;                              ///< Maximum number of simultaneous holders the semaphore can have
+    u32 available_count;                        ///< Number of free slots left in the semaphore
+    std::queue<Handle> waiting_threads;         ///< Threads that are waiting for the semaphore
+    std::string name;                           ///< Name of semaphore (optional)
+    /**
+     * Tests whether a semaphore still has free slots
+     * @return Whether the semaphore is available
+     */
+    bool IsAvailable() const {
+        return available_count > 0;
+    }
+    ResultVal<bool> WaitSynchronization() override {
+        bool wait = !IsAvailable();
+        if (wait) {
+            Kernel::WaitCurrentThread(WAITTYPE_SEMA, GetHandle());
+            waiting_threads.push(GetCurrentThreadHandle());
+        } else {
+            --available_count;
+        }
+        return MakeResult<bool>(wait);
+    }
+};
+////////////////////////////////////////////////////////////////////////////////////////////////////
+ResultCode CreateSemaphore(Handle* handle, u32 initial_count, 
+    u32 max_count, const std::string& name) {
+    if (initial_count > max_count)
+        return ResultCode(ErrorDescription::InvalidCombination, ErrorModule::Kernel,
+                          ErrorSummary::WrongArgument, ErrorLevel::Permanent);
+    Semaphore* semaphore = new Semaphore;
+    *handle = g_object_pool.Create(semaphore);
+    // When the semaphore is created, some slots are reserved for other threads,
+    // and the rest is reserved for the caller thread
+    semaphore->max_count = max_count;
+    semaphore->available_count = initial_count;
+    semaphore->name = name;
+    return RESULT_SUCCESS;
+}
+ResultCode ReleaseSemaphore(s32* count, Handle handle, s32 release_count) {
+    Semaphore* semaphore = g_object_pool.Get<Semaphore>(handle);
+    if (semaphore == nullptr)
+        return InvalidHandle(ErrorModule::Kernel);
+    if (semaphore->max_count - semaphore->available_count < release_count)
+        return ResultCode(ErrorDescription::OutOfRange, ErrorModule::Kernel, 
+                          ErrorSummary::InvalidArgument, ErrorLevel::Permanent);
+    *count = semaphore->available_count;
+    semaphore->available_count += release_count;
+    // Notify some of the threads that the semaphore has been released
+    // stop once the semaphore is full again or there are no more waiting threads
+    while (!semaphore->waiting_threads.empty() && semaphore->IsAvailable()) {
+        Kernel::ResumeThreadFromWait(semaphore->waiting_threads.front());
+        semaphore->waiting_threads.pop();
+        --semaphore->available_count;
+    }
+    return RESULT_SUCCESS;
+}
+} // namespace
diff --git a/src/core/hle/kernel/semaphore.h b/src/core/hle/kernel/semaphore.h
new file mode 100644
index 000000000..f0075fdb8
--- /dev/null
+++ b/src/core/hle/kernel/semaphore.h
@@ -0,0 +1,32 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2+
+// Refer to the license.txt file included.
+#pragma once
+#include "common/common_types.h"
+#include "core/hle/kernel/kernel.h"
+namespace Kernel {
+/**
+ * Creates a semaphore.
+ * @param handle Pointer to the handle of the newly created object
+ * @param initial_count Number of slots reserved for other threads
+ * @param max_count Maximum number of slots the semaphore can have
+ * @param name Optional name of semaphore
+ * @return ResultCode of the error
+ */
+ResultCode CreateSemaphore(Handle* handle, u32 initial_count, u32 max_count, const std::string& name = "Unknown");
+/**
+ * Releases a certain number of slots from a semaphore.
+ * @param count The number of free slots the semaphore had before this call
+ * @param handle The handle of the semaphore to release
+ * @param release_count The number of slots to release
+ * @return ResultCode of the error
+ */
+ResultCode ReleaseSemaphore(s32* count, Handle handle, s32 release_count);
+} // namespace
diff --git a/src/core/hle/kernel/session.h b/src/core/hle/kernel/session.h
new file mode 100644
index 000000000..06ae4bc39
--- /dev/null
+++ b/src/core/hle/kernel/session.h
@@ -0,0 +1,58 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2+
+// Refer to the license.txt file included.
+#pragma once
+#include "core/hle/kernel/kernel.h"
+namespace Kernel {
+static const int kCommandHeaderOffset = 0x80; ///< Offset into command buffer of header
+/**
+ * Returns a pointer to the command buffer in kernel memory
+ * @param offset Optional offset into command buffer
+ * @return Pointer to command buffer
+ */
+inline static u32* GetCommandBuffer(const int offset=0) {
+    return (u32*)Memory::GetPointer(Memory::KERNEL_MEMORY_VADDR + kCommandHeaderOffset + offset);
+}
+/**
+ * Kernel object representing the client endpoint of an IPC session. Sessions are the basic CTR-OS
+ * primitive for communication between different processes, and are used to implement service calls
+ * to the various system services.
+ *
+ * To make a service call, the client must write the command header and parameters to the buffer
+ * located at offset 0x80 of the TLS (Thread-Local Storage) area, then execute a SendSyncRequest
+ * SVC call with its Session handle. The kernel will read the command header, using it to marshall
+ * the parameters to the process at the server endpoint of the session. After the server replies to
+ * the request, the response is marshalled back to the caller's TLS buffer and control is
+ * transferred back to it.
+ *
+ * In Citra, only the client endpoint is currently implemented and only HLE calls, where the IPC
+ * request is answered by C++ code in the emulator, are supported. When SendSyncRequest is called
+ * with the session handle, this class's SyncRequest method is called, which should read the TLS
+ * buffer and emulate the call accordingly. Since the code can directly read the emulated memory,
+ * no parameter marshalling is done.
+ *
+ * In the long term, this should be turned into the full-fledged IPC mechanism implemented by
+ * CTR-OS so that IPC calls can be optionally handled by the real implementations of processes, as
+ * opposed to HLE simulations.
+ */
+class Session : public Object {
+public:
+    std::string GetTypeName() const override { return "Session"; }
+    static Kernel::HandleType GetStaticHandleType() { return Kernel::HandleType::Session; }
+    Kernel::HandleType GetHandleType() const override { return Kernel::HandleType::Session; }
+    /**
+     * Handles a synchronous call to this session using HLE emulation. Emulated <-> emulated calls
+     * aren't supported yet.
+     */
+    virtual ResultVal<bool> SyncRequest() = 0;
+};
+}
diff --git a/src/core/hle/kernel/shared_memory.cpp b/src/core/hle/kernel/shared_memory.cpp
index 6bd5e2728..3c8c502c6 100644
--- a/src/core/hle/kernel/shared_memory.cpp
+++ b/src/core/hle/kernel/shared_memory.cpp
@@ -1,6 +1,6 @@
 // Copyright 2014 Citra Emulator Project
 // Licensed under GPLv2
-// Refer to the license.txt file included.  
+// Refer to the license.txt file included.
 #include "common/common.h"
@@ -16,17 +16,6 @@ public:
    static Kernel::HandleType GetStaticHandleType() {  return Kernel::HandleType::SharedMemory; }
    Kernel::HandleType GetHandleType() const override { return Kernel::HandleType::SharedMemory; }
-    /**
-     * Wait for kernel object to synchronize
-     * @param wait Boolean wait set if current thread should wait as a result of sync operation
-     * @return Result of operation, 0 on success, otherwise error code
-     */
-    Result WaitSynchronization(bool* wait) override {
-        // TODO(bunnei): ImplementMe
-        ERROR_LOG(OSHLE, "(UNIMPLEMENTED)");
-        return 0;
-    }
    u32 base_address;                   ///< Address of shared memory block in RAM
    MemoryPermission permissions;       ///< Permissions of shared memory block (SVC field)
    MemoryPermission other_permissions; ///< Other permissions of shared memory block (SVC field)
@@ -48,11 +37,6 @@ SharedMemory* CreateSharedMemory(Handle& handle, const std::string& name) {
    return shared_memory;
 }
-/**
- * Creates a shared memory object
- * @param name Optional name of shared memory object
- * @return Handle of newly created shared memory object
- */
 Handle CreateSharedMemory(const std::string& name) {
    Handle handle;
    CreateSharedMemory(handle, name);
@@ -67,39 +51,36 @@ Handle CreateSharedMemory(const std::string& name) {
 * @param other_permissions Memory block map other permissions (specified by SVC field)
 * @return Result of operation, 0 on success, otherwise error code
 */
-Result MapSharedMemory(u32 handle, u32 address, MemoryPermission permissions, 
+ResultCode MapSharedMemory(u32 handle, u32 address, MemoryPermission permissions,
    MemoryPermission other_permissions) {
    if (address < Memory::SHARED_MEMORY_VADDR || address >= Memory::SHARED_MEMORY_VADDR_END) {
-        ERROR_LOG(KERNEL, "cannot map handle=0x%08X, address=0x%08X outside of shared mem bounds!",
+        LOG_ERROR(Kernel_SVC, "cannot map handle=0x%08X, address=0x%08X outside of shared mem bounds!",
-            handle);
+            handle, address);
-        return -1;
+        return ResultCode(ErrorDescription::InvalidAddress, ErrorModule::Kernel,
+                ErrorSummary::InvalidArgument, ErrorLevel::Permanent);
    }
-    SharedMemory* shared_memory = Kernel::g_object_pool.GetFast<SharedMemory>(handle);
+    SharedMemory* shared_memory = Kernel::g_object_pool.Get<SharedMemory>(handle);
-    _assert_msg_(KERNEL, (shared_memory != nullptr), "handle 0x%08X is not valid!", handle);
+    if (shared_memory == nullptr) return InvalidHandle(ErrorModule::Kernel);
    shared_memory->base_address = address;
    shared_memory->permissions = permissions;
    shared_memory->other_permissions = other_permissions;
-    return 0;
+    return RESULT_SUCCESS;
 }
-/**
+ResultVal<u8*> GetSharedMemoryPointer(Handle handle, u32 offset) {
- * Gets a pointer to the shared memory block
+    SharedMemory* shared_memory = Kernel::g_object_pool.Get<SharedMemory>(handle);
- * @param handle Shared memory block handle
+    if (shared_memory == nullptr) return InvalidHandle(ErrorModule::Kernel);
- * @param offset Offset from the start of the shared memory block to get pointer
- * @return Pointer to the shared memory block from the specified offset
- */
-u8* GetSharedMemoryPointer(Handle handle, u32 offset) {
-    SharedMemory* shared_memory = Kernel::g_object_pool.GetFast<SharedMemory>(handle);
-    _assert_msg_(KERNEL, (shared_memory != nullptr), "handle 0x%08X is not valid!", handle);
    if (0 != shared_memory->base_address)
-        return Memory::GetPointer(shared_memory->base_address + offset);
+        return MakeResult<u8*>(Memory::GetPointer(shared_memory->base_address + offset));
-    ERROR_LOG(KERNEL, "memory block handle=0x%08X not mapped!", handle);
+    LOG_ERROR(Kernel_SVC, "memory block handle=0x%08X not mapped!", handle);
-    return nullptr;
+    // TODO(yuriks): Verify error code.
+    return ResultCode(ErrorDescription::InvalidAddress, ErrorModule::Kernel,
+            ErrorSummary::InvalidState, ErrorLevel::Permanent);
 }
 } // namespace
diff --git a/src/core/hle/kernel/shared_memory.h b/src/core/hle/kernel/shared_memory.h
index 6204d8a45..bb778ec26 100644
--- a/src/core/hle/kernel/shared_memory.h
+++ b/src/core/hle/kernel/shared_memory.h
@@ -1,6 +1,6 @@
 // Copyright 2014 Citra Emulator Project
 // Licensed under GPLv2
-// Refer to the license.txt file included.  
+// Refer to the license.txt file included.
 #pragma once
@@ -36,9 +36,8 @@ Handle CreateSharedMemory(const std::string& name="Unknown");
 * @param address Address in system memory to map shared memory block to
 * @param permissions Memory block map permissions (specified by SVC field)
 * @param other_permissions Memory block map other permissions (specified by SVC field)
- * @return Result of operation, 0 on success, otherwise error code
 */
-Result MapSharedMemory(u32 handle, u32 address, MemoryPermission permissions, 
+ResultCode MapSharedMemory(Handle handle, u32 address, MemoryPermission permissions,
    MemoryPermission other_permissions);
 /**
@@ -47,6 +46,6 @@ Result MapSharedMemory(u32 handle, u32 address, MemoryPermission permissions,
 * @param offset Offset from the start of the shared memory block to get pointer
 * @return Pointer to the shared memory block from the specified offset
 */
-u8* GetSharedMemoryPointer(Handle handle, u32 offset);
+ResultVal<u8*> GetSharedMemoryPointer(Handle handle, u32 offset);
 } // namespace
diff --git a/src/core/hle/kernel/thread.cpp b/src/core/hle/kernel/thread.cpp
index e15590c49..1c04701de 100644
--- a/src/core/hle/kernel/thread.cpp
+++ b/src/core/hle/kernel/thread.cpp
@@ -1,6 +1,6 @@
 // Copyright 2014 Citra Emulator Project / PPSSPP Project
 // Licensed under GPLv2
-// Refer to the license.txt file included.  
+// Refer to the license.txt file included.
 #include <algorithm>
 #include <list>
@@ -11,10 +11,12 @@
 #include "common/thread_queue_list.h"
 #include "core/core.h"
-#include "core/mem_map.h"
 #include "core/hle/hle.h"
 #include "core/hle/kernel/kernel.h"
 #include "core/hle/kernel/thread.h"
+#include "core/hle/kernel/mutex.h"
+#include "core/hle/result.h"
+#include "core/mem_map.h"
 namespace Kernel {
@@ -33,25 +35,23 @@ public:
    inline bool IsWaiting() const { return (status & THREADSTATUS_WAIT) != 0; }
    inline bool IsSuspended() const { return (status & THREADSTATUS_SUSPEND) != 0; }
-    /**
+    ResultVal<bool> WaitSynchronization() override {
-     * Wait for kernel object to synchronize
+        const bool wait = status != THREADSTATUS_DORMANT;
-     * @param wait Boolean wait set if current thread should wait as a result of sync operation
+        if (wait) {
-     * @return Result of operation, 0 on success, otherwise error code
-     */
-    Result WaitSynchronization(bool* wait) override {
-        if (status != THREADSTATUS_DORMANT) {
            Handle thread = GetCurrentThreadHandle();
            if (std::find(waiting_threads.begin(), waiting_threads.end(), thread) == waiting_threads.end()) {
                waiting_threads.push_back(thread);
            }
            WaitCurrentThread(WAITTYPE_THREADEND, this->GetHandle());
-            *wait = true;
        }
-        return 0;
+        return MakeResult<bool>(wait);
    }
    ThreadContext context;
+    u32 thread_id;
    u32 status;
    u32 entry_point;
    u32 stack_top;
@@ -64,6 +64,7 @@ public:
    WaitType wait_type;
    Handle wait_handle;
+    VAddr wait_address;
    std::vector<Handle> waiting_threads;
@@ -71,17 +72,20 @@ public:
 };
 // Lists all thread ids that aren't deleted/etc.
-std::vector<Handle> g_thread_queue;
+static std::vector<Handle> thread_queue;
 // Lists only ready thread ids.
-Common::ThreadQueueList<Handle> g_thread_ready_queue;
+static Common::ThreadQueueList<Handle> thread_ready_queue;
+static Handle current_thread_handle;
+static Thread* current_thread;
-Handle g_current_thread_handle;
+static const u32 INITIAL_THREAD_ID = 1; ///< The first available thread id at startup
-Thread* g_current_thread;
+static u32 next_thread_id; ///< The next available thread id
 /// Gets the current thread
 inline Thread* GetCurrentThread() {
-    return g_current_thread;
+    return current_thread;
 }
 /// Gets the current thread handle
@@ -91,8 +95,8 @@ Handle GetCurrentThreadHandle() {
 /// Sets the current thread
 inline void SetCurrentThread(Thread* t) {
-    g_current_thread = t;
+    current_thread = t;
-    g_current_thread_handle = t->GetHandle();
+    current_thread_handle = t->GetHandle();
 }
 /// Saves the current CPU context
@@ -113,7 +117,7 @@ void ResetThread(Thread* t, u32 arg, s32 lowest_priority) {
    t->context.pc = t->context.reg_15 = t->entry_point;
    t->context.sp = t->stack_top;
    t->context.cpsr = 0x1F; // Usermode
-    
    // TODO(bunnei): This instructs the CPU core to start the execution as if it is "resuming" a
    // thread. This is somewhat Sky-Eye specific, and should be re-architected in the future to be
    // agnostic of the CPU core.
@@ -124,6 +128,7 @@ void ResetThread(Thread* t, u32 arg, s32 lowest_priority) {
    }
    t->wait_type = WAITTYPE_NONE;
    t->wait_handle = 0;
+    t->wait_address = 0;
 }
 /// Change a thread to "ready" state
@@ -131,40 +136,44 @@ void ChangeReadyState(Thread* t, bool ready) {
    Handle handle = t->GetHandle();
    if (t->IsReady()) {
        if (!ready) {
-            g_thread_ready_queue.remove(t->current_priority, handle);
+            thread_ready_queue.remove(t->current_priority, handle);
        }
    }  else if (ready) {
        if (t->IsRunning()) {
-            g_thread_ready_queue.push_front(t->current_priority, handle);
+            thread_ready_queue.push_front(t->current_priority, handle);
        } else {
-            g_thread_ready_queue.push_back(t->current_priority, handle);
+            thread_ready_queue.push_back(t->current_priority, handle);
        }
        t->status = THREADSTATUS_READY;
    }
 }
 /// Verify that a thread has not been released from waiting
-inline bool VerifyWait(const Handle& handle, WaitType type, Handle wait_handle) {
+static bool VerifyWait(const Thread* thread, WaitType type, Handle wait_handle) {
-    Thread* thread = g_object_pool.GetFast<Thread>(handle);
+    _dbg_assert_(Kernel, thread != nullptr);
-    _assert_msg_(KERNEL, (thread != nullptr), "called, but thread is nullptr!");
+    return (type == thread->wait_type) && (wait_handle == thread->wait_handle) && (thread->IsWaiting());
+}
-    if (type != thread->wait_type || wait_handle != thread->wait_handle) 
-        return false;
-    return true;
+/// Verify that a thread has not been released from waiting (with wait address)
+static bool VerifyWait(const Thread* thread, WaitType type, Handle wait_handle, VAddr wait_address) {
+    _dbg_assert_(Kernel, thread != nullptr);
+    return VerifyWait(thread, type, wait_handle) && (wait_address == thread->wait_address);
 }
 /// Stops the current thread
-void StopThread(Handle handle, const char* reason) {
+ResultCode StopThread(Handle handle, const char* reason) {
-    Thread* thread = g_object_pool.GetFast<Thread>(handle);
+    Thread* thread = g_object_pool.Get<Thread>(handle);
-    _assert_msg_(KERNEL, (thread != nullptr), "called, but thread is nullptr!");
+    if (thread == nullptr) return InvalidHandle(ErrorModule::Kernel);
-    
+    // Release all the mutexes that this thread holds
+    ReleaseThreadMutexes(handle);
    ChangeReadyState(thread, false);
    thread->status = THREADSTATUS_DORMANT;
-    for (size_t i = 0; i < thread->waiting_threads.size(); ++i) {
+    for (Handle waiting_handle : thread->waiting_threads) {
-        const Handle waiting_thread = thread->waiting_threads[i];
+        Thread* waiting_thread = g_object_pool.Get<Thread>(waiting_handle);
        if (VerifyWait(waiting_thread, WAITTYPE_THREADEND, handle)) {
-            ResumeThreadFromWait(waiting_thread);
+            ResumeThreadFromWait(waiting_handle);
        }
    }
    thread->waiting_threads.clear();
@@ -172,6 +181,9 @@ void StopThread(Handle handle, const char* reason) {
    // Stopped threads are never waiting.
    thread->wait_type = WAITTYPE_NONE;
    thread->wait_handle = 0;
+    thread->wait_address = 0;
+    return RESULT_SUCCESS;
 }
 /// Changes a threads state
@@ -181,10 +193,10 @@ void ChangeThreadState(Thread* t, ThreadStatus new_status) {
    }
    ChangeReadyState(t, (new_status & THREADSTATUS_READY) != 0);
    t->status = new_status;
-    
    if (new_status == THREADSTATUS_WAIT) {
        if (t->wait_type == WAITTYPE_NONE) {
-            ERROR_LOG(KERNEL, "Waittype none not allowed");
+            LOG_ERROR(Kernel, "Waittype none not allowed");
        }
    }
 }
@@ -195,13 +207,15 @@ Handle ArbitrateHighestPriorityThread(u32 arbiter, u32 address) {
    s32 priority = THREADPRIO_LOWEST;
    // Iterate through threads, find highest priority thread that is waiting to be arbitrated...
-    for (const auto& handle : g_thread_queue) {
+    for (Handle handle : thread_queue) {
+        Thread* thread = g_object_pool.Get<Thread>(handle);
-        // TODO(bunnei): Verify arbiter address...
+        if (!VerifyWait(thread, WAITTYPE_ARB, arbiter, address))
-        if (!VerifyWait(handle, WAITTYPE_ARB, arbiter))
            continue;
-        Thread* thread = g_object_pool.GetFast<Thread>(handle);
+        if (thread == nullptr)
+            continue; // TODO(yuriks): Thread handle will hang around forever. Should clean up.
        if(thread->current_priority <= priority) {
            highest_priority_thread = handle;
            priority = thread->current_priority;
@@ -216,12 +230,12 @@ Handle ArbitrateHighestPriorityThread(u32 arbiter, u32 address) {
 /// Arbitrate all threads currently waiting
 void ArbitrateAllThreads(u32 arbiter, u32 address) {
-    
    // Iterate through threads, find highest priority thread that is waiting to be arbitrated...
-    for (const auto& handle : g_thread_queue) {
+    for (Handle handle : thread_queue) {
+        Thread* thread = g_object_pool.Get<Thread>(handle);
-        // TODO(bunnei): Verify arbiter address...
+        if (VerifyWait(thread, WAITTYPE_ARB, arbiter, address))
-        if (VerifyWait(handle, WAITTYPE_ARB, arbiter))
            ResumeThreadFromWait(handle);
    }
 }
@@ -238,11 +252,11 @@ void CallThread(Thread* t) {
 /// Switches CPU context to that of the specified thread
 void SwitchContext(Thread* t) {
    Thread* cur = GetCurrentThread();
-    
    // Save context for current thread
    if (cur) {
        SaveContext(cur->context);
-        
        if (cur->IsRunning()) {
            ChangeReadyState(cur, true);
        }
@@ -263,23 +277,18 @@ void SwitchContext(Thread* t) {
 Thread* NextThread() {
    Handle next;
    Thread* cur = GetCurrentThread();
-    
    if (cur && cur->IsRunning()) {
-        next = g_thread_ready_queue.pop_first_better(cur->current_priority);
+        next = thread_ready_queue.pop_first_better(cur->current_priority);
    } else  {
-        next = g_thread_ready_queue.pop_first();
+        next = thread_ready_queue.pop_first();
    }
    if (next == 0) {
        return nullptr;
    }
-    return Kernel::g_object_pool.GetFast<Thread>(next);
+    return Kernel::g_object_pool.Get<Thread>(next);
 }
-/**
- * Puts the current thread in the wait state for the given type
- * @param wait_type Type of wait
- * @param wait_handle Handle of Kernel object that we are waiting on, defaults to current thread
- */
 void WaitCurrentThread(WaitType wait_type, Handle wait_handle) {
    Thread* thread = GetCurrentThread();
    thread->wait_type = wait_type;
@@ -287,10 +296,14 @@ void WaitCurrentThread(WaitType wait_type, Handle wait_handle) {
    ChangeThreadState(thread, ThreadStatus(THREADSTATUS_WAIT | (thread->status & THREADSTATUS_SUSPEND)));
 }
+void WaitCurrentThread(WaitType wait_type, Handle wait_handle, VAddr wait_address) {
+    WaitCurrentThread(wait_type, wait_handle);
+    GetCurrentThread()->wait_address = wait_address;
+}
 /// Resumes a thread from waiting by marking it as "ready"
 void ResumeThreadFromWait(Handle handle) {
-    u32 error;
+    Thread* thread = Kernel::g_object_pool.Get<Thread>(handle);
-    Thread* thread = Kernel::g_object_pool.Get<Thread>(handle, error);
    if (thread) {
        thread->status &= ~THREADSTATUS_WAIT;
        if (!(thread->status & (THREADSTATUS_WAITSUSPEND | THREADSTATUS_DORMANT | THREADSTATUS_DEAD))) {
@@ -305,12 +318,12 @@ void DebugThreadQueue() {
    if (!thread) {
        return;
    }
-    INFO_LOG(KERNEL, "0x%02X 0x%08X (current)", thread->current_priority, GetCurrentThreadHandle());
+    LOG_DEBUG(Kernel, "0x%02X 0x%08X (current)", thread->current_priority, GetCurrentThreadHandle());
-    for (u32 i = 0; i < g_thread_queue.size(); i++) {
+    for (u32 i = 0; i < thread_queue.size(); i++) {
-        Handle handle = g_thread_queue[i];
+        Handle handle = thread_queue[i];
-        s32 priority = g_thread_ready_queue.contains(handle);
+        s32 priority = thread_ready_queue.contains(handle);
        if (priority != -1) {
-            INFO_LOG(KERNEL, "0x%02X 0x%08X", priority, handle);
+            LOG_DEBUG(Kernel, "0x%02X 0x%08X", priority, handle);
        }
    }
 }
@@ -319,16 +332,17 @@ void DebugThreadQueue() {
 Thread* CreateThread(Handle& handle, const char* name, u32 entry_point, s32 priority,
    s32 processor_id, u32 stack_top, int stack_size) {
-    _assert_msg_(KERNEL, (priority >= THREADPRIO_HIGHEST && priority <= THREADPRIO_LOWEST), 
+    _assert_msg_(KERNEL, (priority >= THREADPRIO_HIGHEST && priority <= THREADPRIO_LOWEST),
-        "CreateThread priority=%d, outside of allowable range!", priority)
+        "priority=%d, outside of allowable range!", priority)
    Thread* thread = new Thread;
    handle = Kernel::g_object_pool.Create(thread);
-    g_thread_queue.push_back(handle);
+    thread_queue.push_back(handle);
-    g_thread_ready_queue.prepare(priority);
+    thread_ready_queue.prepare(priority);
+    thread->thread_id = next_thread_id++;
    thread->status = THREADSTATUS_DORMANT;
    thread->entry_point = entry_point;
    thread->stack_top = stack_top;
@@ -337,6 +351,7 @@ Thread* CreateThread(Handle& handle, const char* name, u32 entry_point, s32 prio
    thread->processor_id = processor_id;
    thread->wait_type = WAITTYPE_NONE;
    thread->wait_handle = 0;
+    thread->wait_address = 0;
    thread->name = name;
    return thread;
@@ -347,28 +362,28 @@ Handle CreateThread(const char* name, u32 entry_point, s32 priority, u32 arg, s3
    u32 stack_top, int stack_size) {
    if (name == nullptr) {
-        ERROR_LOG(KERNEL, "CreateThread(): nullptr name");
+        LOG_ERROR(Kernel_SVC, "nullptr name");
        return -1;
    }
    if ((u32)stack_size < 0x200) {
-        ERROR_LOG(KERNEL, "CreateThread(name=%s): invalid stack_size=0x%08X", name, 
+        LOG_ERROR(Kernel_SVC, "(name=%s): invalid stack_size=0x%08X", name,
            stack_size);
        return -1;
    }
    if (priority < THREADPRIO_HIGHEST || priority > THREADPRIO_LOWEST) {
        s32 new_priority = CLAMP(priority, THREADPRIO_HIGHEST, THREADPRIO_LOWEST);
-        WARN_LOG(KERNEL, "CreateThread(name=%s): invalid priority=0x%08X, clamping to %08X",
+        LOG_WARNING(Kernel_SVC, "(name=%s): invalid priority=%d, clamping to %d",
            name, priority, new_priority);
        // TODO(bunnei): Clamping to a valid priority is not necessarily correct behavior... Confirm
        // validity of this
        priority = new_priority;
    }
    if (!Memory::GetPointer(entry_point)) {
-        ERROR_LOG(KERNEL, "CreateThread(name=%s): invalid entry %08x", name, entry_point);
+        LOG_ERROR(Kernel_SVC, "(name=%s): invalid entry %08x", name, entry_point);
        return -1;
    }
    Handle handle;
-    Thread* thread = CreateThread(handle, name, entry_point, priority, processor_id, stack_top, 
+    Thread* thread = CreateThread(handle, name, entry_point, priority, processor_id, stack_top,
        stack_size);
    ResetThread(thread, arg, 0);
@@ -378,26 +393,30 @@ Handle CreateThread(const char* name, u32 entry_point, s32 priority, u32 arg, s3
 }
 /// Get the priority of the thread specified by handle
-u32 GetThreadPriority(const Handle handle) {
+ResultVal<u32> GetThreadPriority(const Handle handle) {
-    Thread* thread = g_object_pool.GetFast<Thread>(handle);
+    Thread* thread = g_object_pool.Get<Thread>(handle);
-    _assert_msg_(KERNEL, (thread != nullptr), "called, but thread is nullptr!");
+    if (thread == nullptr) return InvalidHandle(ErrorModule::Kernel);
-    return thread->current_priority;
+    return MakeResult<u32>(thread->current_priority);
 }
 /// Set the priority of the thread specified by handle
-Result SetThreadPriority(Handle handle, s32 priority) {
+ResultCode SetThreadPriority(Handle handle, s32 priority) {
    Thread* thread = nullptr;
    if (!handle) {
        thread = GetCurrentThread(); // TODO(bunnei): Is this correct behavior?
    } else {
-        thread = g_object_pool.GetFast<Thread>(handle);
+        thread = g_object_pool.Get<Thread>(handle);
+        if (thread == nullptr) {
+            return InvalidHandle(ErrorModule::Kernel);
+        }
    }
    _assert_msg_(KERNEL, (thread != nullptr), "called, but thread is nullptr!");
    // If priority is invalid, clamp to valid range
    if (priority < THREADPRIO_HIGHEST || priority > THREADPRIO_LOWEST) {
        s32 new_priority = CLAMP(priority, THREADPRIO_HIGHEST, THREADPRIO_LOWEST);
-        WARN_LOG(KERNEL, "invalid priority=0x%08X, clamping to %08X", priority, new_priority);
+        LOG_WARNING(Kernel_SVC, "invalid priority=%d, clamping to %d", priority, new_priority);
        // TODO(bunnei): Clamping to a valid priority is not necessarily correct behavior... Confirm
        // validity of this
        priority = new_priority;
@@ -405,37 +424,37 @@ Result SetThreadPriority(Handle handle, s32 priority) {
    // Change thread priority
    s32 old = thread->current_priority;
-    g_thread_ready_queue.remove(old, handle);
+    thread_ready_queue.remove(old, handle);
    thread->current_priority = priority;
-    g_thread_ready_queue.prepare(thread->current_priority);
+    thread_ready_queue.prepare(thread->current_priority);
    // Change thread status to "ready" and push to ready queue
    if (thread->IsRunning()) {
        thread->status = (thread->status & ~THREADSTATUS_RUNNING) | THREADSTATUS_READY;
    }
    if (thread->IsReady()) {
-        g_thread_ready_queue.push_back(thread->current_priority, handle);
+        thread_ready_queue.push_back(thread->current_priority, handle);
    }
-    return 0;
+    return RESULT_SUCCESS;
 }
 /// Sets up the primary application thread
 Handle SetupMainThread(s32 priority, int stack_size) {
    Handle handle;
-    
    // Initialize new "main" thread
-    Thread* thread = CreateThread(handle, "main", Core::g_app_core->GetPC(), priority, 
+    Thread* thread = CreateThread(handle, "main", Core::g_app_core->GetPC(), priority,
        THREADPROCESSORID_0, Memory::SCRATCHPAD_VADDR_END, stack_size);
-    
    ResetThread(thread, 0, 0);
-    
    // If running another thread already, set it to "ready" state
    Thread* cur = GetCurrentThread();
    if (cur && cur->IsRunning()) {
        ChangeReadyState(cur, true);
    }
-    
    // Run new "main" thread
    SetCurrentThread(thread);
    thread->status = THREADSTATUS_RUNNING;
@@ -451,13 +470,13 @@ void Reschedule() {
    Thread* next = NextThread();
    HLE::g_reschedule = false;
    if (next > 0) {
-        INFO_LOG(KERNEL, "context switch 0x%08X -> 0x%08X", prev->GetHandle(), next->GetHandle());
+        LOG_TRACE(Kernel, "context switch 0x%08X -> 0x%08X", prev->GetHandle(), next->GetHandle());
-        
        SwitchContext(next);
        // Hack - There is no mechanism yet to waken the primary thread if it has been put to sleep
        // by a simulated VBLANK thread switch. So, we'll just immediately set it to "ready" again.
-        // This results in the current thread yielding on a VBLANK once, and then it will be 
+        // This results in the current thread yielding on a VBLANK once, and then it will be
        // immediately placed back in the queue for execution.
        if (prev->wait_type == WAITTYPE_VBLANK) {
            ResumeThreadFromWait(prev->GetHandle());
@@ -465,9 +484,21 @@ void Reschedule() {
    }
 }
+ResultCode GetThreadId(u32* thread_id, Handle handle) {
+    Thread* thread = g_object_pool.Get<Thread>(handle);
+    if (thread == nullptr)
+        return ResultCode(ErrorDescription::InvalidHandle, ErrorModule::OS, 
+                          ErrorSummary::WrongArgument, ErrorLevel::Permanent);
+    *thread_id = thread->thread_id;
+    return RESULT_SUCCESS;
+}
 ////////////////////////////////////////////////////////////////////////////////////////////////////
 void ThreadingInit() {
+    next_thread_id = INITIAL_THREAD_ID;
 }
 void ThreadingShutdown() {
diff --git a/src/core/hle/kernel/thread.h b/src/core/hle/kernel/thread.h
index 39fa38b75..be7adface 100644
--- a/src/core/hle/kernel/thread.h
+++ b/src/core/hle/kernel/thread.h
@@ -1,11 +1,15 @@
 // Copyright 2014 Citra Emulator Project / PPSSPP Project
 // Licensed under GPLv2
-// Refer to the license.txt file included.  
+// Refer to the license.txt file included.
 #pragma once
 #include "common/common_types.h"
+#include "core/mem_map.h"
 #include "core/hle/kernel/kernel.h"
+#include "core/hle/result.h"
 enum ThreadPriority {
    THREADPRIO_HIGHEST      = 0,    ///< Highest thread priority
@@ -55,7 +59,15 @@ Handle SetupMainThread(s32 priority, int stack_size=Kernel::DEFAULT_STACK_SIZE);
 void Reschedule();
 /// Stops the current thread
-void StopThread(Handle thread, const char* reason);
+ResultCode StopThread(Handle thread, const char* reason);
+/**
+ * Retrieves the ID of the specified thread handle
+ * @param thread_id Will contain the output thread id
+ * @param handle Handle to the thread we want
+ * @return Whether the function was successful or not
+ */
+ResultCode GetThreadId(u32* thread_id, Handle handle);
 /// Resumes a thread from waiting by marking it as "ready"
 void ResumeThreadFromWait(Handle handle);
@@ -76,14 +88,22 @@ Handle GetCurrentThreadHandle();
 */
 void WaitCurrentThread(WaitType wait_type, Handle wait_handle=GetCurrentThreadHandle());
+/**
+ * Puts the current thread in the wait state for the given type
+ * @param wait_type Type of wait
+ * @param wait_handle Handle of Kernel object that we are waiting on, defaults to current thread
+ * @param wait_address Arbitration address used to resume from wait
+ */
+void WaitCurrentThread(WaitType wait_type, Handle wait_handle, VAddr wait_address);
 /// Put current thread in a wait state - on WaitSynchronization
 void WaitThread_Synchronization();
 /// Get the priority of the thread specified by handle
-u32 GetThreadPriority(const Handle handle);
+ResultVal<u32> GetThreadPriority(const Handle handle);
 /// Set the priority of the thread specified by handle
-Result SetThreadPriority(Handle handle, s32 priority);
+ResultCode SetThreadPriority(Handle handle, s32 priority);
 /// Initialize threading
 void ThreadingInit();
diff --git a/src/core/hle/result.h b/src/core/hle/result.h
new file mode 100644
index 000000000..14d2be4a2
--- /dev/null
+++ b/src/core/hle/result.h
@@ -0,0 +1,402 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2
+// Refer to the license.txt file included.
+#pragma once
+#include <cassert>
+#include <cstddef>
+#include <type_traits>
+#include <utility>
+#include "common/common_types.h"
+#include "common/bit_field.h"
+// All the constants in this file come from http://3dbrew.org/wiki/Error_codes
+/// Detailed description of the error. This listing is likely incomplete.
+enum class ErrorDescription : u32 {
+    Success = 0,
+    FS_NotFound = 100,
+    FS_NotFormatted = 340, ///< This is used by the FS service when creating a SaveData archive
+    InvalidSection = 1000,
+    TooLarge = 1001,
+    NotAuthorized = 1002,
+    AlreadyDone = 1003,
+    InvalidSize = 1004,
+    InvalidEnumValue = 1005,
+    InvalidCombination = 1006,
+    NoData = 1007,
+    Busy = 1008,
+    MisalignedAddress = 1009,
+    MisalignedSize = 1010,
+    OutOfMemory = 1011,
+    NotImplemented = 1012,
+    InvalidAddress = 1013,
+    InvalidPointer = 1014,
+    InvalidHandle = 1015,
+    NotInitialized = 1016,
+    AlreadyInitialized = 1017,
+    NotFound = 1018,
+    CancelRequested = 1019,
+    AlreadyExists = 1020,
+    OutOfRange = 1021,
+    Timeout = 1022,
+    InvalidResultValue = 1023,
+};
+/**
+ * Identifies the module which caused the error. Error codes can be propagated through a call
+ * chain, meaning that this doesn't always correspond to the module where the API call made is
+ * contained.
+ */
+enum class ErrorModule : u32 {
+    Common = 0,
+    Kernel = 1,
+    Util = 2,
+    FileServer = 3,
+    LoaderServer = 4,
+    TCB = 5,
+    OS = 6,
+    DBG = 7,
+    DMNT = 8,
+    PDN = 9,
+    GX = 10,
+    I2C = 11,
+    GPIO = 12,
+    DD = 13,
+    CODEC = 14,
+    SPI = 15,
+    PXI = 16,
+    FS = 17,
+    DI = 18,
+    HID = 19,
+    CAM = 20,
+    PI = 21,
+    PM = 22,
+    PM_LOW = 23,
+    FSI = 24,
+    SRV = 25,
+    NDM = 26,
+    NWM = 27,
+    SOC = 28,
+    LDR = 29,
+    ACC = 30,
+    RomFS = 31,
+    AM = 32,
+    HIO = 33,
+    Updater = 34,
+    MIC = 35,
+    FND = 36,
+    MP = 37,
+    MPWL = 38,
+    AC = 39,
+    HTTP = 40,
+    DSP = 41,
+    SND = 42,
+    DLP = 43,
+    HIO_LOW = 44,
+    CSND = 45,
+    SSL = 46,
+    AM_LOW = 47,
+    NEX = 48,
+    Friends = 49,
+    RDT = 50,
+    Applet = 51,
+    NIM = 52,
+    PTM = 53,
+    MIDI = 54,
+    MC = 55,
+    SWC = 56,
+    FatFS = 57,
+    NGC = 58,
+    CARD = 59,
+    CARDNOR = 60,
+    SDMC = 61,
+    BOSS = 62,
+    DBM = 63,
+    Config = 64,
+    PS = 65,
+    CEC = 66,
+    IR = 67,
+    UDS = 68,
+    PL = 69,
+    CUP = 70,
+    Gyroscope = 71,
+    MCU = 72,
+    NS = 73,
+    News = 74,
+    RO_1 = 75,
+    GD = 76,
+    CardSPI = 77,
+    EC = 78,
+    RO_2 = 79,
+    WebBrowser = 80,
+    Test = 81,
+    ENC = 82,
+    PIA = 83,
+    Application = 254,
+    InvalidResult = 255
+};
+/// A less specific error cause.
+enum class ErrorSummary : u32 {
+    Success = 0,
+    NothingHappened = 1,
+    WouldBlock = 2,
+    OutOfResource = 3,      ///< There are no more kernel resources (memory, table slots) to
+                            ///< execute the operation.
+    NotFound = 4,           ///< A file or resource was not found.
+    InvalidState = 5,
+    NotSupported = 6,       ///< The operation is not supported or not implemented.
+    InvalidArgument = 7,    ///< Returned when a passed argument is invalid in the current runtime
+                            ///< context. (Invalid handle, out-of-bounds pointer or size, etc.)
+    WrongArgument = 8,      ///< Returned when a passed argument is in an incorrect format for use
+                            ///< with the function. (E.g. Invalid enum value)
+    Canceled = 9,
+    StatusChanged = 10,
+    Internal = 11,
+    InvalidResult = 63
+};
+/// The severity of the error.
+enum class ErrorLevel : u32 {
+    Success = 0,
+    Info = 1,
+    Status = 25,
+    Temporary = 26,
+    Permanent = 27,
+    Usage = 28,
+    Reinitialize = 29,
+    Reset = 30,
+    Fatal = 31
+};
+/// Encapsulates a CTR-OS error code, allowing it to be separated into its constituent fields.
+union ResultCode {
+    u32 raw;
+    BitField<0, 10, ErrorDescription> description;
+    BitField<10, 8, ErrorModule> module;
+    BitField<21, 6, ErrorSummary> summary;
+    BitField<27, 5, ErrorLevel> level;
+    // The last bit of `level` is checked by apps and the kernel to determine if a result code is an error
+    BitField<31, 1, u32> is_error;
+    explicit ResultCode(u32 raw) : raw(raw) {}
+    ResultCode(ErrorDescription description_, ErrorModule module_,
+            ErrorSummary summary_, ErrorLevel level_) : raw(0) {
+        description = description_;
+        module = module_;
+        summary = summary_;
+        level = level_;
+    }
+    ResultCode& operator=(const ResultCode& o) { raw = o.raw; return *this; }
+    bool IsSuccess() const {
+        return is_error == 0;
+    }
+    bool IsError() const {
+        return is_error == 1;
+    }
+};
+inline bool operator==(const ResultCode a, const ResultCode b) {
+    return a.raw == b.raw;
+}
+inline bool operator!=(const ResultCode a, const ResultCode b) {
+    return a.raw != b.raw;
+}
+// Convenience functions for creating some common kinds of errors:
+/// The default success `ResultCode`.
+const ResultCode RESULT_SUCCESS(0);
+/// Might be returned instead of a dummy success for unimplemented APIs.
+inline ResultCode UnimplementedFunction(ErrorModule module) {
+    return ResultCode(ErrorDescription::NotImplemented, module,
+            ErrorSummary::NotSupported, ErrorLevel::Permanent);
+}
+/// Returned when a function is passed an invalid handle.
+inline ResultCode InvalidHandle(ErrorModule module) {
+    return ResultCode(ErrorDescription::InvalidHandle, module,
+            ErrorSummary::InvalidArgument, ErrorLevel::Permanent);
+}
+/**
+ * This is an optional value type. It holds a `ResultCode` and, if that code is a success code,
+ * also holds a result of type `T`. If the code is an error code then trying to access the inner
+ * value fails, thus ensuring that the ResultCode of functions is always checked properly before
+ * their return value is used.  It is similar in concept to the `std::optional` type
+ * (http://en.cppreference.com/w/cpp/experimental/optional) originally proposed for inclusion in
+ * C++14, or the `Result` type in Rust (http://doc.rust-lang.org/std/result/index.html).
+ *
+ * An example of how it could be used:
+ * \code
+ * ResultVal<int> Frobnicate(float strength) {
+ *     if (strength < 0.f || strength > 1.0f) {
+ *         // Can't frobnicate too weakly or too strongly
+ *         return ResultCode(ErrorDescription::OutOfRange, ErrorModule::Common,
+ *             ErrorSummary::InvalidArgument, ErrorLevel::Permanent);
+ *     } else {
+ *         // Frobnicated! Give caller a cookie
+ *         return MakeResult<int>(42);
+ *     }
+ * }
+ * \endcode
+ *
+ * \code
+ * ResultVal<int> frob_result = Frobnicate(0.75f);
+ * if (frob_result) {
+ *     // Frobbed ok
+ *     printf("My cookie is %d\n", *frob_result);
+ * } else {
+ *     printf("Guess I overdid it. :( Error code: %ux\n", frob_result.code().hex);
+ * }
+ * \endcode
+ */
+template <typename T>
+class ResultVal {
+public:
+    /// Constructs an empty `ResultVal` with the given error code. The code must not be a success code.
+    ResultVal(ResultCode error_code = ResultCode(-1))
+        : result_code(error_code)
+    {
+        assert(error_code.IsError());
+        UpdateDebugPtr();
+    }
+    /**
+     * Similar to the non-member function `MakeResult`, with the exception that you can manually
+     * specify the success code. `success_code` must not be an error code.
+     */
+    template <typename... Args>
+    static ResultVal WithCode(ResultCode success_code, Args&&... args) {
+        ResultVal<T> result;
+        result.emplace(success_code, std::forward<Args>(args)...);
+        return result;
+    }
+    ResultVal(const ResultVal& o)
+        : result_code(o.result_code)
+    {
+        if (!o.empty()) {
+            new (&storage) T(*o.GetPointer());
+        }
+        UpdateDebugPtr();
+    }
+    ResultVal(ResultVal&& o)
+        : result_code(o.result_code)
+    {
+        if (!o.empty()) {
+            new (&storage) T(std::move(*o.GetPointer()));
+        }
+        UpdateDebugPtr();
+    }
+    ~ResultVal() {
+        if (!empty()) {
+            GetPointer()->~T();
+        }
+    }
+    ResultVal& operator=(const ResultVal& o) {
+        if (*this) {
+            if (o) {
+                *GetPointer() = *o.GetPointer();
+            } else {
+                GetPointer()->~T();
+            }
+        } else {
+            if (o) {
+                new (&storage) T(*o.GetPointer());
+            }
+        }
+        result_code = o.result_code;
+        UpdateDebugPtr();
+        return *this;
+    }
+    /**
+     * Replaces the current result with a new constructed result value in-place. The code must not
+     * be an error code.
+     */
+    template <typename... Args>
+    void emplace(ResultCode success_code, Args&&... args) {
+        assert(success_code.IsSuccess());
+        if (!empty()) {
+            GetPointer()->~T();
+        }
+        new (&storage) T(std::forward<Args>(args)...);
+        result_code = success_code;
+        UpdateDebugPtr();
+    }
+    /// Returns true if the `ResultVal` contains an error code and no value.
+    bool empty() const { return result_code.IsError(); }
+    /// Returns true if the `ResultVal` contains a return value.
+    bool Succeeded() const { return result_code.IsSuccess(); }
+    /// Returns true if the `ResultVal` contains an error code and no value.
+    bool Failed() const { return empty(); }
+    ResultCode Code() const { return result_code; }
+    const T& operator* () const { return *GetPointer(); }
+          T& operator* ()       { return *GetPointer(); }
+    const T* operator->() const { return  GetPointer(); }
+          T* operator->()       { return  GetPointer(); }
+    /// Returns the value contained in this `ResultVal`, or the supplied default if it is missing.
+    template <typename U>
+    T ValueOr(U&& value) const {
+        return !empty() ? *GetPointer() : std::move(value);
+    }
+private:
+    typedef typename std::aligned_storage<sizeof(T), std::alignment_of<T>::value>::type StorageType;
+    StorageType storage;
+    ResultCode result_code;
+#if _DEBUG
+    // The purpose of this pointer is to aid inspecting the type with a debugger, eliminating the
+    // need to cast `storage` to a pointer or pay attention to `result_code`.
+    const T* debug_ptr;
+#endif
+    void UpdateDebugPtr() {
+#if _DEBUG
+        debug_ptr = empty() ? nullptr : static_cast<const T*>(static_cast<const void*>(&storage));
+#endif
+    }
+    const T* GetPointer() const {
+        assert(!empty());
+        return static_cast<const T*>(static_cast<const void*>(&storage));
+    }
+    T* GetPointer() {
+        assert(!empty());
+        return static_cast<T*>(static_cast<void*>(&storage));
+    }
+};
+/**
+ * This function is a helper used to construct `ResultVal`s. It receives the arguments to construct
+ * `T` with and creates a success `ResultVal` contained the constructed value.
+ */
+template <typename T, typename... Args>
+ResultVal<T> MakeResult(Args&&... args) {
+    return ResultVal<T>::WithCode(RESULT_SUCCESS, std::forward<Args>(args)...);
+}
diff --git a/src/core/hle/service/ac_u.cpp b/src/core/hle/service/ac_u.cpp
index b39603bdf..311682abf 100644
--- a/src/core/hle/service/ac_u.cpp
+++ b/src/core/hle/service/ac_u.cpp
@@ -11,6 +11,24 @@
 namespace AC_U {
+/**
+ * AC_U::GetWifiStatus service function
+ *  Outputs:
+ *      1 : Result of function, 0 on success, otherwise error code
+ *      2 : Output connection type, 0 = none, 1 = Old3DS Internet, 2 = New3DS Internet.
+ */
+void GetWifiStatus(Service::Interface* self) {
+    u32* cmd_buff = Kernel::GetCommandBuffer();
+    // TODO(purpasmart96): This function is only a stub,
+    // it returns a valid result without implementing full functionality.
+    cmd_buff[1] = 0; // No error
+    cmd_buff[2] = 0; // Connection type set to none
+    LOG_WARNING(Service_AC, "(STUBBED) called");
+}
 const Interface::FunctionInfo FunctionTable[] = {
    {0x00010000, nullptr,               "CreateDefaultConfig"},
    {0x00040006, nullptr,               "ConnectAsync"},
@@ -18,16 +36,16 @@ const Interface::FunctionInfo FunctionTable[] = {
    {0x00080004, nullptr,               "CloseAsync"},
    {0x00090002, nullptr,               "GetCloseResult"},
    {0x000A0000, nullptr,               "GetLastErrorCode"},
-    {0x000D0000, nullptr,               "GetWifiStatus"},
+    {0x000D0000, GetWifiStatus,         "GetWifiStatus"},
    {0x000E0042, nullptr,               "GetCurrentAPInfo"},
    {0x00100042, nullptr,               "GetCurrentNZoneInfo"},
    {0x00110042, nullptr,               "GetNZoneApNumService"},
-    {0x00240042, nullptr,               "AddDenyApType "},
+    {0x00240042, nullptr,               "AddDenyApType"},
-    {0x00270002, nullptr,               "GetInfraPriority "},
+    {0x00270002, nullptr,               "GetInfraPriority"},
    {0x002D0082, nullptr,               "SetRequestEulaVersion"},
    {0x00300004, nullptr,               "RegisterDisconnectEvent"},
    {0x003C0042, nullptr,               "GetAPSSIDList"},
-    {0x003E0042, nullptr,               "IsConnected "},
+    {0x003E0042, nullptr,               "IsConnected"},
    {0x00400042, nullptr,               "SetClientVersion"},
 };
diff --git a/src/core/hle/service/ac_u.h b/src/core/hle/service/ac_u.h
index 3c5958d27..c91b28353 100644
--- a/src/core/hle/service/ac_u.h
+++ b/src/core/hle/service/ac_u.h
@@ -9,7 +9,7 @@
 ////////////////////////////////////////////////////////////////////////////////////////////////////
 // Namespace AC_U
-// socket service "ac:u" 
+// socket service "ac:u"
 namespace AC_U {
@@ -21,7 +21,7 @@ public:
     * Gets the string port name used by CTROS for the service
     * @return Port name of service
     */
-    std::string GetPortName() const {
+    std::string GetPortName() const override {
        return "ac:u";
    }
 };
diff --git a/src/core/hle/service/am_app.cpp b/src/core/hle/service/am_app.cpp
new file mode 100644
index 000000000..b8b06418c
--- /dev/null
+++ b/src/core/hle/service/am_app.cpp
@@ -0,0 +1,24 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2+
+// Refer to the license.txt file included.
+#include "common/log.h"
+#include "core/hle/hle.h"
+#include "core/hle/service/am_app.h"
+////////////////////////////////////////////////////////////////////////////////////////////////////
+// Namespace AM_APP
+namespace AM_APP {
+// Empty arrays are illegal -- commented out until an entry is added.
+//const Interface::FunctionInfo FunctionTable[] = { };
+////////////////////////////////////////////////////////////////////////////////////////////////////
+// Interface class
+Interface::Interface() {
+    //Register(FunctionTable, ARRAY_SIZE(FunctionTable));
+}
+} // namespace
diff --git a/src/core/hle/service/am_app.h b/src/core/hle/service/am_app.h
new file mode 100644
index 000000000..86a5f5b74
--- /dev/null
+++ b/src/core/hle/service/am_app.h
@@ -0,0 +1,27 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2+
+// Refer to the license.txt file included.
+#pragma once
+#include "core/hle/service/service.h"
+////////////////////////////////////////////////////////////////////////////////////////////////////
+// Namespace AM_APP
+namespace AM_APP {
+class Interface : public Service::Interface {
+public:
+    Interface();
+    /**
+     * Gets the string port name used by CTROS for the service
+     * @return Port name of service
+     */
+    std::string GetPortName() const override {
+        return "am:app";
+    }
+};
+} // namespace
diff --git a/src/core/hle/service/am_net.cpp b/src/core/hle/service/am_net.cpp
new file mode 100644
index 000000000..403cac353
--- /dev/null
+++ b/src/core/hle/service/am_net.cpp
@@ -0,0 +1,47 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2
+// Refer to the license.txt file included.
+#include "common/log.h"
+#include "core/hle/hle.h"
+#include "core/hle/service/am_net.h"
+////////////////////////////////////////////////////////////////////////////////////////////////////
+// Namespace AM_NET
+namespace AM_NET {
+const Interface::FunctionInfo FunctionTable[] = {
+    {0x08010000, nullptr,               "OpenTicket"},
+    {0x08020002, nullptr,               "TicketAbortInstall"},
+    {0x08030002, nullptr,               "TicketFinalizeInstall"},
+    {0x08040100, nullptr,               "InstallTitleBegin"},
+    {0x08050000, nullptr,               "InstallTitleAbort"},
+    {0x080600C0, nullptr,               "InstallTitleResume"},
+    {0x08070000, nullptr,               "InstallTitleAbortTMD"},
+    {0x08080000, nullptr,               "InstallTitleFinish"},
+    {0x080A0000, nullptr,               "OpenTMD"},
+    {0x080B0002, nullptr,               "TMDAbortInstall"},
+    {0x080C0042, nullptr,               "TMDFinalizeInstall"},
+    {0x080E0040, nullptr,               "OpenContentCreate"},
+    {0x080F0002, nullptr,               "ContentAbortInstall"},
+    {0x08100040, nullptr,               "OpenContentResume"},
+    {0x08120002, nullptr,               "ContentFinalizeInstall"},
+    {0x08130000, nullptr,               "GetTotalContents"},
+    {0x08140042, nullptr,               "GetContentIndexes"},
+    {0x08150044, nullptr,               "GetContentsInfo"},
+    {0x08190108, nullptr,               "Unknown"},
+    {0x081B00C2, nullptr,               "InstallTitlesFinish"},
+};
+////////////////////////////////////////////////////////////////////////////////////////////////////
+// Interface class
+Interface::Interface() {
+    Register(FunctionTable, ARRAY_SIZE(FunctionTable));
+}
+Interface::~Interface() {
+}
+} // namespace
diff --git a/src/core/hle/service/fs_user.h b/src/core/hle/service/am_net.h
index 005382540..4816e1697 100644
--- a/src/core/hle/service/fs_user.h
+++ b/src/core/hle/service/am_net.h
@@ -7,24 +7,20 @@
 #include "core/hle/service/service.h"
 ////////////////////////////////////////////////////////////////////////////////////////////////////
-// Namespace FS_User
+// Namespace AM_NET
-namespace FS_User {
+namespace AM_NET {
-/// Interface to "fs:USER" service
 class Interface : public Service::Interface {
 public:
    Interface();
    ~Interface();
    /**
     * Gets the string port name used by CTROS for the service
     * @return Port name of service
     */
    std::string GetPortName() const override {
-        return "fs:USER";
+        return "am:net";
    }
 };
diff --git a/src/core/hle/service/apt_u.cpp b/src/core/hle/service/apt_u.cpp
index 617b6add4..ebfba4d8d 100644
--- a/src/core/hle/service/apt_u.cpp
+++ b/src/core/hle/service/apt_u.cpp
@@ -4,10 +4,12 @@
 #include "common/common.h"
+#include "common/file_util.h"
 #include "core/hle/hle.h"
 #include "core/hle/kernel/event.h"
 #include "core/hle/kernel/mutex.h"
+#include "core/hle/kernel/shared_memory.h"
 #include "apt_u.h"
 ////////////////////////////////////////////////////////////////////////////////////////////////////
@@ -15,6 +17,20 @@
 namespace APT_U {
+// Address used for shared font (as observed on HW)
+// TODO(bunnei): This is the hard-coded address where we currently dump the shared font from via
+// https://github.com/citra-emu/3dsutils. This is technically a hack, and will not work at any
+// address other than 0x18000000 due to internal pointers in the shared font dump that would need to
+// be relocated. This might be fixed by dumping the shared font @ address 0x00000000 and then
+// correctly mapping it in Citra, however we still do not understand how the mapping is determined.
+static const VAddr SHARED_FONT_VADDR = 0x18000000;
+// Handle to shared memory region designated to for shared system font
+static Handle shared_font_mem = 0;
+static Handle lock_handle = 0;
+static std::vector<u8> shared_font;
 /// Signals used by APT functions
 enum class SignalType : u32 {
    None            = 0x0,
@@ -24,83 +40,178 @@ enum class SignalType : u32 {
 };
 void Initialize(Service::Interface* self) {
-    u32* cmd_buff = Service::GetCommandBuffer();
+    u32* cmd_buff = Kernel::GetCommandBuffer();
-    
    cmd_buff[3] = Kernel::CreateEvent(RESETTYPE_ONESHOT, "APT_U:Menu");  // APT menu event handle
    cmd_buff[4] = Kernel::CreateEvent(RESETTYPE_ONESHOT, "APT_U:Pause"); // APT pause event handle
    Kernel::SetEventLocked(cmd_buff[3], true);
    Kernel::SetEventLocked(cmd_buff[4], false); // Fire start event
+    _assert_msg_(KERNEL, (0 != lock_handle), "Cannot initialize without lock");
+    Kernel::ReleaseMutex(lock_handle);
    cmd_buff[1] = 0; // No error
-    DEBUG_LOG(KERNEL, "called");
+    LOG_DEBUG(Service_APT, "called");
 }
 void GetLockHandle(Service::Interface* self) {
-    u32* cmd_buff = Service::GetCommandBuffer();
+    u32* cmd_buff = Kernel::GetCommandBuffer();
    u32 flags = cmd_buff[1]; // TODO(bunnei): Figure out the purpose of the flag field
+    if (0 == lock_handle) {
+        // TODO(bunnei): Verify if this is created here or at application boot?
+        lock_handle = Kernel::CreateMutex(false, "APT_U:Lock");
+        Kernel::ReleaseMutex(lock_handle);
+    }
    cmd_buff[1] = 0; // No error
-    cmd_buff[5] = Kernel::CreateMutex(false, "APT_U:Lock");
-    DEBUG_LOG(KERNEL, "called handle=0x%08X", cmd_buff[5]);
+    // Not sure what these parameters are used for, but retail apps check that they are 0 after
+    // GetLockHandle has been called.
+    cmd_buff[2] = 0;
+    cmd_buff[3] = 0;
+    cmd_buff[4] = 0;
+    cmd_buff[5] = lock_handle;
+    LOG_TRACE(Service_APT, "called handle=0x%08X", cmd_buff[5]);
 }
 void Enable(Service::Interface* self) {
-    u32* cmd_buff = Service::GetCommandBuffer();
+    u32* cmd_buff = Kernel::GetCommandBuffer();
    u32 unk = cmd_buff[1]; // TODO(bunnei): What is this field used for?
    cmd_buff[1] = 0; // No error
-    WARN_LOG(KERNEL, "(STUBBED) called unk=0x%08X", unk);
+    LOG_WARNING(Service_APT, "(STUBBED) called unk=0x%08X", unk);
 }
 void InquireNotification(Service::Interface* self) {
-    u32* cmd_buff = Service::GetCommandBuffer();
+    u32* cmd_buff = Kernel::GetCommandBuffer();
    u32 app_id = cmd_buff[2];
    cmd_buff[1] = 0; // No error
    cmd_buff[2] = static_cast<u32>(SignalType::None); // Signal type
-    WARN_LOG(KERNEL, "(STUBBED) called app_id=0x%08X", app_id);
+    LOG_WARNING(Service_APT, "(STUBBED) called app_id=0x%08X", app_id);
 }
+/**
+ * APT_U::ReceiveParameter service function. This returns the current parameter data from NS state,
+ * from the source process which set the parameters. Once finished, NS will clear a flag in the NS
+ * state so that this command will return an error if this command is used again if parameters were
+ * not set again. This is called when the second Initialize event is triggered. It returns a signal
+ * type indicating why it was triggered.
+ *  Inputs:
+ *      1 : AppID
+ *      2 : Parameter buffer size, max size is 0x1000
+ *  Outputs:
+ *      1 : Result of function, 0 on success, otherwise error code
+ *      2 : Unknown, for now assume AppID of the process which sent these parameters
+ *      3 : Unknown, for now assume Signal type
+ *      4 : Actual parameter buffer size, this is <= to the the input size
+ *      5 : Value
+ *      6 : Handle from the source process which set the parameters, likely used for shared memory
+ *      7 : Size
+ *      8 : Output parameter buffer ptr
+ */
 void ReceiveParameter(Service::Interface* self) {
-    u32* cmd_buff = Service::GetCommandBuffer();
+    u32* cmd_buff = Kernel::GetCommandBuffer();
    u32 app_id = cmd_buff[1];
    u32 buffer_size = cmd_buff[2];
    cmd_buff[1] = 0; // No error
    cmd_buff[2] = 0;
    cmd_buff[3] = static_cast<u32>(SignalType::AppJustStarted); // Signal type
-    cmd_buff[4] = 0x10;
+    cmd_buff[4] = 0x10; // Parameter buffer size (16)
    cmd_buff[5] = 0;
    cmd_buff[6] = 0;
    cmd_buff[7] = 0;
-    WARN_LOG(KERNEL, "(STUBBED) called app_id=0x%08X, buffer_size=0x%08X", app_id, buffer_size);
+    LOG_WARNING(Service_APT, "(STUBBED) called app_id=0x%08X, buffer_size=0x%08X", app_id, buffer_size);
 }
 /**
-* APT_U::GlanceParameter service function
+ * APT_U::GlanceParameter service function. This is exactly the same as APT_U::ReceiveParameter
-* Inputs:
+ * (except for the word value prior to the output handle), except this will not clear the flag
-* 1 : AppID
+ * (except when responseword[3]==8 || responseword[3]==9) in NS state.
-* 2 : Parameter buffer size, max size is 0x1000
+ *  Inputs:
-* Outputs:
+ *      1 : AppID
-* 1 : Result of function, 0 on success, otherwise error code
+ *      2 : Parameter buffer size, max size is 0x1000
-* 2 : Unknown, for now assume AppID of the process which sent these parameters
+ *  Outputs:
-* 3 : Unknown, for now assume Signal type
+ *      1 : Result of function, 0 on success, otherwise error code
-* 4 : Actual parameter buffer size, this is <= to the the input size
+ *      2 : Unknown, for now assume AppID of the process which sent these parameters
-* 5 : Value
+ *      3 : Unknown, for now assume Signal type
-* 6 : Handle from the source process which set the parameters, likely used for shared memory
+ *      4 : Actual parameter buffer size, this is <= to the the input size
-* 7 : Size
+ *      5 : Value
-* 8 : Output parameter buffer ptr
+ *      6 : Handle from the source process which set the parameters, likely used for shared memory
-*/
+ *      7 : Size
+ *      8 : Output parameter buffer ptr
+ */
 void GlanceParameter(Service::Interface* self) {
-    u32* cmd_buff = Service::GetCommandBuffer();
+    u32* cmd_buff = Kernel::GetCommandBuffer();
    u32 app_id = cmd_buff[1];
    u32 buffer_size = cmd_buff[2];
    cmd_buff[1] = 0; // No error
    cmd_buff[2] = 0;
    cmd_buff[3] = static_cast<u32>(SignalType::AppJustStarted); // Signal type
-    cmd_buff[4] = 0;
+    cmd_buff[4] = 0x10; // Parameter buffer size (16)
    cmd_buff[5] = 0;
    cmd_buff[6] = 0;
    cmd_buff[7] = 0;
-    cmd_buff[8] = 0;
-    WARN_LOG(KERNEL, "(STUBBED) called app_id=0x%08X, buffer_size=0x%08X", app_id, buffer_size);
+    LOG_WARNING(Service_APT, "(STUBBED) called app_id=0x%08X, buffer_size=0x%08X", app_id, buffer_size);
+}
+/**
+ * APT_U::AppletUtility service function
+ *  Inputs:
+ *      1 : Unknown, but clearly used for something
+ *      2 : Buffer 1 size (purpose is unknown)
+ *      3 : Buffer 2 size (purpose is unknown)
+ *      5 : Buffer 1 address (purpose is unknown)
+ *      65 : Buffer 2 address (purpose is unknown)
+ *  Outputs:
+ *      1 : Result of function, 0 on success, otherwise error code
+ */
+void AppletUtility(Service::Interface* self) {
+    u32* cmd_buff = Kernel::GetCommandBuffer();
+    // These are from 3dbrew - I'm not really sure what they're used for.
+    u32 unk = cmd_buff[1];
+    u32 buffer1_size = cmd_buff[2];
+    u32 buffer2_size = cmd_buff[3];
+    u32 buffer1_addr = cmd_buff[5];
+    u32 buffer2_addr = cmd_buff[65];
+    cmd_buff[1] = 0; // No error
+    LOG_WARNING(Service_APT, "(STUBBED) called unk=0x%08X, buffer1_size=0x%08x, buffer2_size=0x%08x, "
+             "buffer1_addr=0x%08x, buffer2_addr=0x%08x", unk, buffer1_size, buffer2_size,
+             buffer1_addr, buffer2_addr);
+}
+/**
+ * APT_U::GetSharedFont service function
+ *  Outputs:
+ *      1 : Result of function, 0 on success, otherwise error code
+ *      2 : Virtual address of where shared font will be loaded in memory
+ *      4 : Handle to shared font memory
+ */
+void GetSharedFont(Service::Interface* self) {
+    LOG_TRACE(Kernel_SVC, "called");
+    u32* cmd_buff = Kernel::GetCommandBuffer();
+    if (!shared_font.empty()) {
+        // TODO(bunnei): This function shouldn't copy the shared font every time it's called.
+        // Instead, it should probably map the shared font as RO memory. We don't currently have
+        // an easy way to do this, but the copy should be sufficient for now.
+        memcpy(Memory::GetPointer(SHARED_FONT_VADDR), shared_font.data(), shared_font.size());
+        cmd_buff[0] = 0x00440082;
+        cmd_buff[1] = 0; // No error
+        cmd_buff[2] = SHARED_FONT_VADDR;
+        cmd_buff[4] = shared_font_mem;
+    } else {
+        cmd_buff[1] = -1; // Generic error (not really possible to verify this on hardware)
+        LOG_ERROR(Kernel_SVC, "called, but %s has not been loaded!", SHARED_FONT);
+    }
 }
 const Interface::FunctionInfo FunctionTable[] = {
@@ -171,14 +282,14 @@ const Interface::FunctionInfo FunctionTable[] = {
    {0x00410040, nullptr,               "ReceiveCaptureBufferInfo"},
    {0x00420080, nullptr,               "SleepSystem"},
    {0x00430040, nullptr,               "NotifyToWait"},
-    {0x00440000, nullptr,               "GetSharedFont"},
+    {0x00440000, GetSharedFont,         "GetSharedFont"},
    {0x00450040, nullptr,               "GetWirelessRebootInfo"},
    {0x00460104, nullptr,               "Wrap"},
    {0x00470104, nullptr,               "Unwrap"},
    {0x00480100, nullptr,               "GetProgramInfo"},
    {0x00490180, nullptr,               "Reboot"},
    {0x004A0040, nullptr,               "GetCaptureInfo"},
-    {0x004B00C2, nullptr,               "AppletUtility"},
+    {0x004B00C2, AppletUtility,         "AppletUtility"},
    {0x004C0000, nullptr,               "SetFatalErrDispMode"},
    {0x004D0080, nullptr,               "GetAppletProgramInfo"},
    {0x004E0000, nullptr,               "HardwareResetAsync"},
@@ -190,6 +301,32 @@ const Interface::FunctionInfo FunctionTable[] = {
 // Interface class
 Interface::Interface() {
+    // Load the shared system font (if available).
+    // The expected format is a decrypted, uncompressed BCFNT file with the 0x80 byte header
+    // generated by the APT:U service. The best way to get is by dumping it from RAM. We've provided
+    // a homebrew app to do this: https://github.com/citra-emu/3dsutils. Put the resulting file
+    // "shared_font.bin" in the Citra "sysdata" directory.
+    shared_font.clear();
+    std::string filepath = FileUtil::GetUserPath(D_SYSDATA_IDX) + SHARED_FONT;
+    FileUtil::CreateFullPath(filepath); // Create path if not already created
+    FileUtil::IOFile file(filepath, "rb");
+    if (file.IsOpen()) {
+        // Read shared font data
+        shared_font.resize(file.GetSize());
+        file.ReadBytes(shared_font.data(), file.GetSize());
+        // Create shared font memory object
+        shared_font_mem = Kernel::CreateSharedMemory("APT_U:shared_font_mem");
+    } else {
+        LOG_WARNING(Service_APT, "Unable to load shared font: %s", filepath.c_str());
+        shared_font_mem = 0;
+    }
+    lock_handle = 0;
    Register(FunctionTable, ARRAY_SIZE(FunctionTable));
 }
diff --git a/src/core/hle/service/apt_u.h b/src/core/hle/service/apt_u.h
index 5af39e085..306730400 100644
--- a/src/core/hle/service/apt_u.h
+++ b/src/core/hle/service/apt_u.h
@@ -13,8 +13,8 @@ namespace APT_U {
 // Application and title launching service. These services handle signaling for home/power button as
 // well. Only one session for either APT service can be open at a time, normally processes close the
-// service handle immediately once finished using the service. The commands for APT:U and APT:S are 
+// service handle immediately once finished using the service. The commands for APT:U and APT:S are
-// exactly the same, however certain commands are only accessible with APT:S(NS module will call 
+// exactly the same, however certain commands are only accessible with APT:S(NS module will call
 // svcBreak when the command isn't accessible). See http://3dbrew.org/wiki/NS#APT_Services.
 /// Interface to "APT:U" service
diff --git a/src/core/hle/service/boss_u.cpp b/src/core/hle/service/boss_u.cpp
new file mode 100644
index 000000000..b2ff4a756
--- /dev/null
+++ b/src/core/hle/service/boss_u.cpp
@@ -0,0 +1,28 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2
+// Refer to the license.txt file included.
+#include "common/log.h"
+#include "core/hle/hle.h"
+#include "core/hle/service/boss_u.h"
+////////////////////////////////////////////////////////////////////////////////////////////////////
+// Namespace BOSS_U
+namespace BOSS_U {
+    const Interface::FunctionInfo FunctionTable[] = {
+        {0x00020100, nullptr,               "GetStorageInfo"},
+    };
+    ////////////////////////////////////////////////////////////////////////////////////////////////////
+    // Interface class
+    Interface::Interface() {
+        Register(FunctionTable, ARRAY_SIZE(FunctionTable));
+    }
+    Interface::~Interface() {
+    }
+} // namespace
diff --git a/src/core/hle/service/boss_u.h b/src/core/hle/service/boss_u.h
new file mode 100644
index 000000000..af39b8e65
--- /dev/null
+++ b/src/core/hle/service/boss_u.h
@@ -0,0 +1,27 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2
+// Refer to the license.txt file included.
+#pragma once
+#include "core/hle/service/service.h"
+////////////////////////////////////////////////////////////////////////////////////////////////////
+// Namespace BOSS_U
+namespace BOSS_U {
+    class Interface : public Service::Interface {
+    public:
+        Interface();
+        ~Interface();
+        /**
+         * Gets the string port name used by CTROS for the service
+         * @return Port name of service
+         */
+        std::string GetPortName() const {
+            return "boss:U";
+        }
+    };
+} // namespace
diff --git a/src/core/hle/service/cecd_u.cpp b/src/core/hle/service/cecd_u.cpp
new file mode 100644
index 000000000..25d903516
--- /dev/null
+++ b/src/core/hle/service/cecd_u.cpp
@@ -0,0 +1,24 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2+
+// Refer to the license.txt file included.
+#include "common/log.h"
+#include "core/hle/hle.h"
+#include "core/hle/service/cecd_u.h"
+////////////////////////////////////////////////////////////////////////////////////////////////////
+// Namespace CECD_U
+namespace CECD_U {
+// Empty arrays are illegal -- commented out until an entry is added.
+//const Interface::FunctionInfo FunctionTable[] = { };
+////////////////////////////////////////////////////////////////////////////////////////////////////
+// Interface class
+Interface::Interface() {
+    //Register(FunctionTable, ARRAY_SIZE(FunctionTable));
+}
+} // namespace
diff --git a/src/core/hle/service/cecd_u.h b/src/core/hle/service/cecd_u.h
new file mode 100644
index 000000000..969e1ed1b
--- /dev/null
+++ b/src/core/hle/service/cecd_u.h
@@ -0,0 +1,27 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2+
+// Refer to the license.txt file included.
+#pragma once
+#include "core/hle/service/service.h"
+////////////////////////////////////////////////////////////////////////////////////////////////////
+// Namespace CECD_U
+namespace CECD_U {
+class Interface : public Service::Interface {
+public:
+    Interface();
+    /**
+     * Gets the string port name used by CTROS for the service
+     * @return Port name of service
+     */
+    std::string GetPortName() const override {
+        return "cecd:u";
+    }
+};
+} // namespace
diff --git a/src/core/hle/service/cfg_i.cpp b/src/core/hle/service/cfg_i.cpp
new file mode 100644
index 000000000..88d13d459
--- /dev/null
+++ b/src/core/hle/service/cfg_i.cpp
@@ -0,0 +1,59 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2
+// Refer to the license.txt file included.
+#include "common/log.h"
+#include "core/hle/hle.h"
+#include "core/hle/service/cfg_i.h"
+////////////////////////////////////////////////////////////////////////////////////////////////////
+// Namespace CFG_I
+namespace CFG_I {
+const Interface::FunctionInfo FunctionTable[] = {
+    {0x04010082, nullptr,               "GetConfigInfoBlk8"},
+    {0x04020082, nullptr,               "GetConfigInfoBlk4"},
+    {0x04030000, nullptr,               "UpdateConfigNANDSavegame"},
+    {0x04040042, nullptr,               "GetLocalFriendCodeSeedData"},
+    {0x04050000, nullptr,               "GetLocalFriendCodeSeed"},
+    {0x04060000, nullptr,               "SecureInfoGetRegion"},
+    {0x04070000, nullptr,               "SecureInfoGetByte101"},
+    {0x04080042, nullptr,               "SecureInfoGetSerialNo"},
+    {0x04090000, nullptr,               "UpdateConfigBlk00040003"},
+    {0x08010082, nullptr,               "GetConfigInfoBlk8"},
+    {0x08020082, nullptr,               "GetConfigInfoBlk4"},
+    {0x08030000, nullptr,               "UpdateConfigNANDSavegame"},
+    {0x080400C2, nullptr,               "CreateConfigInfoBlk"},
+    {0x08050000, nullptr,               "DeleteConfigNANDSavefile"},
+    {0x08060000, nullptr,               "FormatConfig"},
+    {0x08070000, nullptr,               "Unknown"},
+    {0x08080000, nullptr,               "UpdateConfigBlk1"},
+    {0x08090000, nullptr,               "UpdateConfigBlk2"},
+    {0x080A0000, nullptr,               "UpdateConfigBlk3"},
+    {0x080B0082, nullptr,               "SetGetLocalFriendCodeSeedData"},
+    {0x080C0042, nullptr,               "SetLocalFriendCodeSeedSignature"},
+    {0x080D0000, nullptr,               "DeleteCreateNANDLocalFriendCodeSeed"},
+    {0x080E0000, nullptr,               "VerifySigLocalFriendCodeSeed"},
+    {0x080F0042, nullptr,               "GetLocalFriendCodeSeedData"},
+    {0x08100000, nullptr,               "GetLocalFriendCodeSeed"},
+    {0x08110084, nullptr,               "SetSecureInfo"},
+    {0x08120000, nullptr,               "DeleteCreateNANDSecureInfo"},
+    {0x08130000, nullptr,               "VerifySigSecureInfo"},
+    {0x08140042, nullptr,               "SecureInfoGetData"},
+    {0x08150042, nullptr,               "SecureInfoGetSignature"},
+    {0x08160000, nullptr,               "SecureInfoGetRegion"},
+    {0x08170000, nullptr,               "SecureInfoGetByte101"},
+    {0x08180042, nullptr,               "SecureInfoGetSerialNo"},
+};
+////////////////////////////////////////////////////////////////////////////////////////////////////
+// Interface class
+Interface::Interface() {
+    Register(FunctionTable, ARRAY_SIZE(FunctionTable));
+}
+Interface::~Interface() {
+}
+} // namespace
diff --git a/src/core/hle/service/cfg_i.h b/src/core/hle/service/cfg_i.h
new file mode 100644
index 000000000..fe343c968
--- /dev/null
+++ b/src/core/hle/service/cfg_i.h
@@ -0,0 +1,27 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2
+// Refer to the license.txt file included.
+#pragma once
+#include "core/hle/service/service.h"
+////////////////////////////////////////////////////////////////////////////////////////////////////
+// Namespace CFG_I
+namespace CFG_I {
+class Interface : public Service::Interface {
+public:
+    Interface();
+    ~Interface();
+    /**
+     * Gets the string port name used by CTROS for the service
+     * @return Port name of service
+     */
+    std::string GetPortName() const override {
+        return "cfg:i";
+    }
+};
+} // namespace
diff --git a/src/core/hle/service/cfg_u.cpp b/src/core/hle/service/cfg_u.cpp
index 822b0e2b8..2e9d7bf21 100644
--- a/src/core/hle/service/cfg_u.cpp
+++ b/src/core/hle/service/cfg_u.cpp
@@ -11,6 +11,94 @@
 namespace CFG_U {
+// TODO(Link Mauve): use a constexpr once MSVC starts supporting it.
+#define C(code) ((code)[0] | ((code)[1] << 8))
+static const std::array<u16, 187> country_codes = {
+    0,       C("JP"), 0,       0,       0,       0,       0,       0,       // 0-7
+    C("AI"), C("AG"), C("AR"), C("AW"), C("BS"), C("BB"), C("BZ"), C("BO"), // 8-15
+    C("BR"), C("VG"), C("CA"), C("KY"), C("CL"), C("CO"), C("CR"), C("DM"), // 16-23
+    C("DO"), C("EC"), C("SV"), C("GF"), C("GD"), C("GP"), C("GT"), C("GY"), // 24-31
+    C("HT"), C("HN"), C("JM"), C("MQ"), C("MX"), C("MS"), C("AN"), C("NI"), // 32-39
+    C("PA"), C("PY"), C("PE"), C("KN"), C("LC"), C("VC"), C("SR"), C("TT"), // 40-47
+    C("TC"), C("US"), C("UY"), C("VI"), C("VE"), 0,       0,       0,       // 48-55
+    0,       0,       0,       0,       0,       0,       0,       0,       // 56-63
+    C("AL"), C("AU"), C("AT"), C("BE"), C("BA"), C("BW"), C("BG"), C("HR"), // 64-71
+    C("CY"), C("CZ"), C("DK"), C("EE"), C("FI"), C("FR"), C("DE"), C("GR"), // 72-79
+    C("HU"), C("IS"), C("IE"), C("IT"), C("LV"), C("LS"), C("LI"), C("LT"), // 80-87
+    C("LU"), C("MK"), C("MT"), C("ME"), C("MZ"), C("NA"), C("NL"), C("NZ"), // 88-95
+    C("NO"), C("PL"), C("PT"), C("RO"), C("RU"), C("RS"), C("SK"), C("SI"), // 96-103
+    C("ZA"), C("ES"), C("SZ"), C("SE"), C("CH"), C("TR"), C("GB"), C("ZM"), // 104-111
+    C("ZW"), C("AZ"), C("MR"), C("ML"), C("NE"), C("TD"), C("SD"), C("ER"), // 112-119
+    C("DJ"), C("SO"), C("AD"), C("GI"), C("GG"), C("IM"), C("JE"), C("MC"), // 120-127
+    C("TW"), 0,       0,       0,       0,       0,       0,       0,       // 128-135
+    C("KR"), 0,       0,       0,       0,       0,       0,       0,       // 136-143
+    C("HK"), C("MO"), 0,       0,       0,       0,       0,       0,       // 144-151
+    C("ID"), C("SG"), C("TH"), C("PH"), C("MY"), 0,       0,       0,       // 152-159
+    C("CN"), 0,       0,       0,       0,       0,       0,       0,       // 160-167
+    C("AE"), C("IN"), C("EG"), C("OM"), C("QA"), C("KW"), C("SA"), C("SY"), // 168-175
+    C("BH"), C("JO"), 0,       0,       0,       0,       0,       0,       // 176-183
+    C("SM"), C("VA"), C("BM")                                               // 184-186
+};
+#undef C
+/**
+ * CFG_User::GetCountryCodeString service function
+ *  Inputs:
+ *      1 : Country Code ID
+ *  Outputs:
+ *      1 : Result of function, 0 on success, otherwise error code
+ *      2 : Country's 2-char string
+ */
+static void GetCountryCodeString(Service::Interface* self) {
+    u32* cmd_buffer = Kernel::GetCommandBuffer();
+    u32 country_code_id = cmd_buffer[1];
+    if (country_code_id >= country_codes.size() || 0 == country_codes[country_code_id]) {
+        LOG_ERROR(Service_CFG, "requested country code id=%d is invalid", country_code_id);
+        cmd_buffer[1] = ResultCode(ErrorDescription::NotFound, ErrorModule::Config, ErrorSummary::WrongArgument, ErrorLevel::Permanent).raw;
+        return;
+    }
+    cmd_buffer[1] = 0;
+    cmd_buffer[2] = country_codes[country_code_id];
+}
+/**
+ * CFG_User::GetCountryCodeID service function
+ *  Inputs:
+ *      1 : Country Code 2-char string
+ *  Outputs:
+ *      1 : Result of function, 0 on success, otherwise error code
+ *      2 : Country Code ID
+ */
+static void GetCountryCodeID(Service::Interface* self) {
+    u32* cmd_buffer = Kernel::GetCommandBuffer();
+    u16 country_code = cmd_buffer[1];
+    u16 country_code_id = 0;
+    // The following algorithm will fail if the first country code isn't 0.
+    _dbg_assert_(Service_CFG, country_codes[0] == 0);
+    for (size_t id = 0; id < country_codes.size(); ++id) {
+        if (country_codes[id] == country_code) {
+            country_code_id = id;
+            break;
+        }
+    }
+    if (0 == country_code_id) {
+        LOG_ERROR(Service_CFG, "requested country code name=%c%c is invalid", country_code & 0xff, country_code >> 8);
+        cmd_buffer[1] = ResultCode(ErrorDescription::NotFound, ErrorModule::Config, ErrorSummary::WrongArgument, ErrorLevel::Permanent).raw;
+        cmd_buffer[2] = 0xFFFF;
+        return;
+    }
+    cmd_buffer[1] = 0;
+    cmd_buffer[2] = country_code_id;
+}
 const Interface::FunctionInfo FunctionTable[] = {
    {0x00010082, nullptr,               "GetConfigInfoBlk2"},
    {0x00020000, nullptr,               "SecureInfoGetRegion"},
@@ -20,8 +108,8 @@ const Interface::FunctionInfo FunctionTable[] = {
    {0x00060000, nullptr,               "GetModelNintendo2DS"},
    {0x00070040, nullptr,               "unknown"},
    {0x00080080, nullptr,               "unknown"},
-    {0x00090080, nullptr,               "GetCountryCodeString"},
+    {0x00090040, GetCountryCodeString,  "GetCountryCodeString"},
-    {0x000A0040, nullptr,               "GetCountryCodeID"},
+    {0x000A0040, GetCountryCodeID,      "GetCountryCodeID"},
 };
 ////////////////////////////////////////////////////////////////////////////////////////////////////
 // Interface class
diff --git a/src/core/hle/service/cfg_u.h b/src/core/hle/service/cfg_u.h
index 7525bd7c6..8075d19a8 100644
--- a/src/core/hle/service/cfg_u.h
+++ b/src/core/hle/service/cfg_u.h
@@ -19,7 +19,7 @@ public:
     * Gets the string port name used by CTROS for the service
     * @return Port name of service
     */
-    std::string GetPortName() const {
+    std::string GetPortName() const override {
        return "cfg:u";
    }
 };
diff --git a/src/core/hle/service/csnd_snd.cpp b/src/core/hle/service/csnd_snd.cpp
new file mode 100644
index 000000000..6e59a9bf3
--- /dev/null
+++ b/src/core/hle/service/csnd_snd.cpp
@@ -0,0 +1,39 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2
+// Refer to the license.txt file included.
+#include "common/log.h"
+#include "core/hle/hle.h"
+#include "core/hle/service/csnd_snd.h"
+////////////////////////////////////////////////////////////////////////////////////////////////////
+// Namespace CSND_SND
+namespace CSND_SND {
+const Interface::FunctionInfo FunctionTable[] = {
+    {0x00010140, nullptr,               "Initialize"},
+    {0x00020000, nullptr,               "Shutdown"},
+    {0x00030040, nullptr,               "Unknown"},
+    {0x00040080, nullptr,               "Unknown"},
+    {0x00050000, nullptr,               "Unknown"},
+    {0x00060000, nullptr,               "Unknown"},
+    {0x00070000, nullptr,               "Unknown"},
+    {0x00080040, nullptr,               "Unknown"},
+    {0x00090082, nullptr,               "FlushDCache"},
+    {0x000A0082, nullptr,               "StoreDCache"},
+    {0x000B0082, nullptr,               "InvalidateDCache"},
+    {0x000C0000, nullptr,               "Unknown"},
+};
+////////////////////////////////////////////////////////////////////////////////////////////////////
+// Interface class
+Interface::Interface() {
+    Register(FunctionTable, ARRAY_SIZE(FunctionTable));
+}
+Interface::~Interface() {
+}
+} // namespace
diff --git a/src/core/hle/service/csnd_snd.h b/src/core/hle/service/csnd_snd.h
new file mode 100644
index 000000000..31cc85b07
--- /dev/null
+++ b/src/core/hle/service/csnd_snd.h
@@ -0,0 +1,27 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2
+// Refer to the license.txt file included.
+#pragma once
+#include "core/hle/service/service.h"
+////////////////////////////////////////////////////////////////////////////////////////////////////
+// Namespace CSND_SND
+namespace CSND_SND {
+class Interface : public Service::Interface {
+public:
+    Interface();
+    ~Interface();
+    /**
+     * Gets the string port name used by CTROS for the service
+     * @return Port name of service
+     */
+    std::string GetPortName() const override {
+        return "csnd:SND";
+    }
+};
+} // namespace
diff --git a/src/core/hle/service/dsp_dsp.cpp b/src/core/hle/service/dsp_dsp.cpp
index 9e84ac938..bd82063c6 100644
--- a/src/core/hle/service/dsp_dsp.cpp
+++ b/src/core/hle/service/dsp_dsp.cpp
@@ -4,6 +4,7 @@
 #include "common/log.h"
 #include "core/hle/hle.h"
+#include "core/hle/kernel/event.h"
 #include "core/hle/service/dsp_dsp.h"
 ////////////////////////////////////////////////////////////////////////////////////////////////////
@@ -11,38 +12,181 @@
 namespace DSP_DSP {
+static u32 read_pipe_count;
+static Handle semaphore_event;
+static Handle interrupt_event;
+/**
+ * DSP_DSP::ConvertProcessAddressFromDspDram service function
+ *  Inputs:
+ *      1 : Address
+ *  Outputs:
+ *      1 : Result of function, 0 on success, otherwise error code
+ *      2 : (inaddr << 1) + 0x1FF40000 (where 0x1FF00000 is the DSP RAM address)
+ */
+void ConvertProcessAddressFromDspDram(Service::Interface* self) {
+    u32* cmd_buff = Kernel::GetCommandBuffer();
+    u32 addr = cmd_buff[1];
+    cmd_buff[1] = 0; // No error
+    cmd_buff[2] = (addr << 1) + (Memory::DSP_MEMORY_VADDR + 0x40000);
+    LOG_WARNING(Service_DSP, "(STUBBED) called with address %u", addr);
+}
+/**
+ * DSP_DSP::LoadComponent service function
+ *  Inputs:
+ *      1 : Size
+ *      2 : Unknown (observed only half word used)
+ *      3 : Unknown (observed only half word used)
+ *      4 : (size << 4) | 0xA
+ *      5 : Buffer address
+ *  Outputs:
+ *      1 : Result of function, 0 on success, otherwise error code
+ *      2 : Component loaded, 0 on not loaded, 1 on loaded
+ */
+void LoadComponent(Service::Interface* self) {
+    u32* cmd_buff = Kernel::GetCommandBuffer();
+    cmd_buff[1] = 0; // No error
+    cmd_buff[2] = 1; // Pretend that we actually loaded the DSP firmware
+    // TODO(bunnei): Implement real DSP firmware loading
+    LOG_WARNING(Service_DSP, "(STUBBED) called");
+}
+/**
+ * DSP_DSP::GetSemaphoreEventHandle service function
+ *  Outputs:
+ *      1 : Result of function, 0 on success, otherwise error code
+ *      3 : Semaphore event handle
+ */
+void GetSemaphoreEventHandle(Service::Interface* self) {
+    u32* cmd_buff = Kernel::GetCommandBuffer();
+    cmd_buff[1] = 0; // No error
+    cmd_buff[3] = semaphore_event; // Event handle
+    LOG_WARNING(Service_DSP, "(STUBBED) called");
+}
+/**
+ * DSP_DSP::RegisterInterruptEvents service function
+ *  Inputs:
+ *      1 : Parameter 0 (purpose unknown)
+ *      2 : Parameter 1 (purpose unknown)
+ *      4 : Interrupt event handle
+ *  Outputs:
+ *      1 : Result of function, 0 on success, otherwise error code
+ */
+void RegisterInterruptEvents(Service::Interface* self) {
+    u32* cmd_buff = Kernel::GetCommandBuffer();
+    interrupt_event = static_cast<Handle>(cmd_buff[4]);
+    cmd_buff[1] = 0; // No error
+    LOG_WARNING(Service_DSP, "(STUBBED) called");
+}
+/**
+ * DSP_DSP::WriteReg0x10 service function
+ *  Inputs:
+ *      1 : Unknown (observed only half word used)
+ *  Outputs:
+ *      1 : Result of function, 0 on success, otherwise error code
+ */
+void WriteReg0x10(Service::Interface* self) {
+    u32* cmd_buff = Kernel::GetCommandBuffer();
+    Kernel::SignalEvent(interrupt_event);
+    cmd_buff[1] = 0; // No error
+    LOG_WARNING(Service_DSP, "(STUBBED) called");
+}
+/**
+ * DSP_DSP::ReadPipeIfPossible service function
+ *  Inputs:
+ *      1 : Unknown
+ *      2 : Unknown
+ *      3 : Size in bytes of read (observed only lower half word used)
+ *      0x41 : Virtual address to read from DSP pipe to in memory
+ *  Outputs:
+ *      1 : Result of function, 0 on success, otherwise error code
+ *      2 : Number of bytes read from pipe
+ */
+void ReadPipeIfPossible(Service::Interface* self) {
+    u32* cmd_buff = Kernel::GetCommandBuffer();
+    u32 size = cmd_buff[3] & 0xFFFF;// Lower 16 bits are size
+    VAddr addr = cmd_buff[0x41];
+    // Canned DSP responses that games expect. These were taken from HW by 3dmoo team.
+    // TODO: Remove this hack :)
+    static const std::array<u16, 16> canned_read_pipe = {
+        0x000F, 0xBFFF, 0x9E8E, 0x8680, 0xA78E, 0x9430, 0x8400, 0x8540,
+        0x948E, 0x8710, 0x8410, 0xA90E, 0xAA0E, 0xAACE, 0xAC4E, 0xAC58
+    };
+    u32 initial_size = read_pipe_count;
+    for (unsigned offset = 0; offset < size; offset += sizeof(u16)) {
+        if (read_pipe_count < canned_read_pipe.size()) {
+            Memory::Write16(addr + offset, canned_read_pipe[read_pipe_count]);
+            read_pipe_count++;
+        } else {
+            LOG_ERROR(Service_DSP, "canned read pipe log exceeded!");
+            break;
+        }
+    }
+    cmd_buff[1] = 0; // No error
+    cmd_buff[2] = (read_pipe_count - initial_size) * sizeof(u16);
+    LOG_WARNING(Service_DSP, "(STUBBED) called size=0x%08X, buffer=0x%08X", size, addr);
+}
 const Interface::FunctionInfo FunctionTable[] = {
-    {0x00010040, nullptr,               "RecvData"},
+    {0x00010040, nullptr,                          "RecvData"},
-    {0x00020040, nullptr,               "RecvDataIsReady"},
+    {0x00020040, nullptr,                          "RecvDataIsReady"},
-    {0x00030080, nullptr,               "SendData"},
+    {0x00030080, nullptr,                          "SendData"},
-    {0x00040040, nullptr,               "SendDataIsEmpty"},
+    {0x00040040, nullptr,                          "SendDataIsEmpty"},
-    {0x00070040, nullptr,               "WriteReg0x10"},
+    {0x00070040, WriteReg0x10,                     "WriteReg0x10"},
-    {0x00080000, nullptr,               "GetSemaphore"},
+    {0x00080000, nullptr,                          "GetSemaphore"},
-    {0x00090040, nullptr,               "ClearSemaphore"},
+    {0x00090040, nullptr,                          "ClearSemaphore"},
-    {0x000B0000, nullptr,               "CheckSemaphoreRequest"},
+    {0x000B0000, nullptr,                          "CheckSemaphoreRequest"},
-    {0x000C0040, nullptr,               "ConvertProcessAddressFromDspDram"},
+    {0x000C0040, ConvertProcessAddressFromDspDram, "ConvertProcessAddressFromDspDram"},
-    {0x000D0082, nullptr,               "WriteProcessPipe"},
+    {0x000D0082, nullptr,                          "WriteProcessPipe"},
-    {0x001000C0, nullptr,               "ReadPipeIfPossible"},
+    {0x001000C0, ReadPipeIfPossible,               "ReadPipeIfPossible"},
-    {0x001100C2, nullptr,               "LoadComponent"},
+    {0x001100C2, LoadComponent,                    "LoadComponent"},
-    {0x00120000, nullptr,               "UnloadComponent"},
+    {0x00120000, nullptr,                          "UnloadComponent"},
-    {0x00130082, nullptr,               "FlushDataCache"},
+    {0x00130082, nullptr,                          "FlushDataCache"},
-    {0x00140082, nullptr,               "InvalidateDCache "},
+    {0x00140082, nullptr,                          "InvalidateDCache"},
-    {0x00150082, nullptr,               "RegisterInterruptEvents"},
+    {0x00150082, RegisterInterruptEvents,          "RegisterInterruptEvents"},
-    {0x00160000, nullptr,               "GetSemaphoreEventHandle"},
+    {0x00160000, GetSemaphoreEventHandle,          "GetSemaphoreEventHandle"},
-    {0x00170040, nullptr,               "SetSemaphoreMask"},
+    {0x00170040, nullptr,                          "SetSemaphoreMask"},
-    {0x00180040, nullptr,               "GetPhysicalAddress"},
+    {0x00180040, nullptr,                          "GetPhysicalAddress"},
-    {0x00190040, nullptr,               "GetVirtualAddress" },
+    {0x00190040, nullptr,                          "GetVirtualAddress"},
-    {0x001A0042, nullptr,               "SetIirFilterI2S1_cmd1"},
+    {0x001A0042, nullptr,                          "SetIirFilterI2S1_cmd1"},
-    {0x001B0042, nullptr,               "SetIirFilterI2S1_cmd2"},
+    {0x001B0042, nullptr,                          "SetIirFilterI2S1_cmd2"},
-    {0x001C0082, nullptr,               "SetIirFilterEQ"},
+    {0x001C0082, nullptr,                          "SetIirFilterEQ"},
-    {0x001F0000, nullptr,               "GetHeadphoneStatus"},
+    {0x001F0000, nullptr,                          "GetHeadphoneStatus"},
-    {0x00210000, nullptr,               "GetIsDspOccupied"},
+    {0x00210000, nullptr,                          "GetIsDspOccupied"},
 };
 ////////////////////////////////////////////////////////////////////////////////////////////////////
 // Interface class
 Interface::Interface() {
+    semaphore_event = Kernel::CreateEvent(RESETTYPE_ONESHOT, "DSP_DSP::semaphore_event");
+    interrupt_event = 0;
+    read_pipe_count = 0;
    Register(FunctionTable, ARRAY_SIZE(FunctionTable));
 }
diff --git a/src/core/hle/service/dsp_dsp.h b/src/core/hle/service/dsp_dsp.h
index c439ed266..9431b62f6 100644
--- a/src/core/hle/service/dsp_dsp.h
+++ b/src/core/hle/service/dsp_dsp.h
@@ -19,8 +19,8 @@ public:
     * Gets the string port name used by CTROS for the service
     * @return Port name of service
     */
-    std::string GetPortName() const {
+    std::string GetPortName() const override {
-        return "dsp:DSP";
+        return "dsp::DSP";
    }
 };
diff --git a/src/core/hle/service/err_f.cpp b/src/core/hle/service/err_f.cpp
index 917b2f8ca..785c351e9 100644
--- a/src/core/hle/service/err_f.cpp
+++ b/src/core/hle/service/err_f.cpp
@@ -20,8 +20,8 @@ namespace ERR_F {
    Interface::Interface() {
        Register(FunctionTable, ARRAY_SIZE(FunctionTable));
    }
-    
    Interface::~Interface() {
    }
-    
 } // namespace
diff --git a/src/core/hle/service/err_f.h b/src/core/hle/service/err_f.h
index 5da663267..6d7141c1b 100644
--- a/src/core/hle/service/err_f.h
+++ b/src/core/hle/service/err_f.h
@@ -19,9 +19,9 @@ namespace ERR_F {
         * Gets the string port name used by CTROS for the service
         * @return Port name of service
         */
-        std::string GetPortName() const {
+        std::string GetPortName() const override {
            return "err:f";
        }
    };
-    
 } // namespace
diff --git a/src/core/hle/service/frd_u.cpp b/src/core/hle/service/frd_u.cpp
new file mode 100644
index 000000000..58023e536
--- /dev/null
+++ b/src/core/hle/service/frd_u.cpp
@@ -0,0 +1,35 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2
+// Refer to the license.txt file included.
+#include "common/log.h"
+#include "core/hle/hle.h"
+#include "core/hle/service/frd_u.h"
+////////////////////////////////////////////////////////////////////////////////////////////////////
+// Namespace FRD_U
+namespace FRD_U {
+    const Interface::FunctionInfo FunctionTable[] = {
+        {0x00050000, nullptr,               "GetFriendKey"},
+        {0x00080000, nullptr,               "GetMyPresence"},
+        {0x00100040, nullptr,               "GetPassword"},
+        {0x00190042, nullptr,               "GetFriendFavoriteGame"},
+        {0x001A00C4, nullptr,               "GetFriendInfo"},
+        {0x001B0080, nullptr,               "IsOnFriendList"},
+        {0x001C0042, nullptr,               "DecodeLocalFriendCode"},
+        {0x001D0002, nullptr,               "SetCurrentlyPlayingText"},
+        {0x00320042, nullptr,               "SetClientSdkVersion"}
+    };
+    ////////////////////////////////////////////////////////////////////////////////////////////////////
+    // Interface class
+    Interface::Interface() {
+        Register(FunctionTable, ARRAY_SIZE(FunctionTable));
+    }
+    Interface::~Interface() {
+    }
+} // namespace
diff --git a/src/core/hle/service/frd_u.h b/src/core/hle/service/frd_u.h
new file mode 100644
index 000000000..4020c6664
--- /dev/null
+++ b/src/core/hle/service/frd_u.h
@@ -0,0 +1,27 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2
+// Refer to the license.txt file included.
+#pragma once
+#include "core/hle/service/service.h"
+////////////////////////////////////////////////////////////////////////////////////////////////////
+// Namespace FRD_U
+namespace FRD_U {
+    class Interface : public Service::Interface {
+    public:
+        Interface();
+        ~Interface();
+        /**
+         * Gets the string port name used by CTROS for the service
+         * @return Port name of service
+         */
+        std::string GetPortName() const override {
+            return "frd:u";
+        }
+    };
+} // namespace
diff --git a/src/core/hle/service/fs/archive.cpp b/src/core/hle/service/fs/archive.cpp
new file mode 100644
index 000000000..9c3834733
--- /dev/null
+++ b/src/core/hle/service/fs/archive.cpp
@@ -0,0 +1,431 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2
+// Refer to the license.txt file included.
+#include <memory>
+#include <unordered_map>
+#include "common/common_types.h"
+#include "common/file_util.h"
+#include "common/math_util.h"
+#include "core/file_sys/archive_savedata.h"
+#include "core/file_sys/archive_backend.h"
+#include "core/file_sys/archive_sdmc.h"
+#include "core/file_sys/directory_backend.h"
+#include "core/hle/service/fs/archive.h"
+#include "core/hle/kernel/session.h"
+#include "core/hle/result.h"
+// Specializes std::hash for ArchiveIdCode, so that we can use it in std::unordered_map.
+// Workaroung for libstdc++ bug: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60970
+namespace std {
+    template <>
+    struct hash<Service::FS::ArchiveIdCode> {
+        typedef Service::FS::ArchiveIdCode argument_type;
+        typedef std::size_t result_type;
+        result_type operator()(const argument_type& id_code) const {
+            typedef std::underlying_type<argument_type>::type Type;
+            return std::hash<Type>()(static_cast<Type>(id_code));
+        }
+    };
+}
+namespace Service {
+namespace FS {
+// Command to access archive file
+enum class FileCommand : u32 {
+    Dummy1          = 0x000100C6,
+    Control         = 0x040100C4,
+    OpenSubFile     = 0x08010100,
+    Read            = 0x080200C2,
+    Write           = 0x08030102,
+    GetSize         = 0x08040000,
+    SetSize         = 0x08050080,
+    GetAttributes   = 0x08060000,
+    SetAttributes   = 0x08070040,
+    Close           = 0x08080000,
+    Flush           = 0x08090000,
+};
+// Command to access directory
+enum class DirectoryCommand : u32 {
+    Dummy1          = 0x000100C6,
+    Control         = 0x040100C4,
+    Read            = 0x08010042,
+    Close           = 0x08020000,
+};
+class Archive {
+public:
+    Archive(std::unique_ptr<FileSys::ArchiveBackend>&& backend, ArchiveIdCode id_code)
+            : backend(std::move(backend)), id_code(id_code) {
+    }
+    std::string GetName() const { return "Archive: " + backend->GetName(); }
+    ArchiveIdCode id_code; ///< Id code of the archive
+    std::unique_ptr<FileSys::ArchiveBackend> backend; ///< Archive backend interface
+};
+class File : public Kernel::Session {
+public:
+    File(std::unique_ptr<FileSys::FileBackend>&& backend, const FileSys::Path& path)
+            : backend(std::move(backend)), path(path) {
+    }
+    std::string GetName() const override { return "Path: " + path.DebugStr(); }
+    FileSys::Path path; ///< Path of the file
+    std::unique_ptr<FileSys::FileBackend> backend; ///< File backend interface
+    ResultVal<bool> SyncRequest() override {
+        u32* cmd_buff = Kernel::GetCommandBuffer();
+        FileCommand cmd = static_cast<FileCommand>(cmd_buff[0]);
+        switch (cmd) {
+        // Read from file...
+        case FileCommand::Read:
+        {
+            u64 offset = cmd_buff[1] | ((u64) cmd_buff[2]) << 32;
+            u32 length  = cmd_buff[3];
+            u32 address = cmd_buff[5];
+            LOG_TRACE(Service_FS, "Read %s %s: offset=0x%llx length=%d address=0x%x",
+                      GetTypeName().c_str(), GetName().c_str(), offset, length, address);
+            cmd_buff[2] = backend->Read(offset, length, Memory::GetPointer(address));
+            break;
+        }
+        // Write to file...
+        case FileCommand::Write:
+        {
+            u64 offset  = cmd_buff[1] | ((u64) cmd_buff[2]) << 32;
+            u32 length  = cmd_buff[3];
+            u32 flush   = cmd_buff[4];
+            u32 address = cmd_buff[6];
+            LOG_TRACE(Service_FS, "Write %s %s: offset=0x%llx length=%d address=0x%x, flush=0x%x",
+                      GetTypeName().c_str(), GetName().c_str(), offset, length, address, flush);
+            cmd_buff[2] = backend->Write(offset, length, flush, Memory::GetPointer(address));
+            break;
+        }
+        case FileCommand::GetSize:
+        {
+            LOG_TRACE(Service_FS, "GetSize %s %s", GetTypeName().c_str(), GetName().c_str());
+            u64 size = backend->GetSize();
+            cmd_buff[2] = (u32)size;
+            cmd_buff[3] = size >> 32;
+            break;
+        }
+        case FileCommand::SetSize:
+        {
+            u64 size = cmd_buff[1] | ((u64)cmd_buff[2] << 32);
+            LOG_TRACE(Service_FS, "SetSize %s %s size=%llu",
+                    GetTypeName().c_str(), GetName().c_str(), size);
+            backend->SetSize(size);
+            break;
+        }
+        case FileCommand::Close:
+        {
+            LOG_TRACE(Service_FS, "Close %s %s", GetTypeName().c_str(), GetName().c_str());
+            Kernel::g_object_pool.Destroy<File>(GetHandle());
+            break;
+        }
+        case FileCommand::Flush:
+        {
+            LOG_TRACE(Service_FS, "Flush");
+            backend->Flush();
+            break;
+        }
+        // Unknown command...
+        default:
+            LOG_ERROR(Service_FS, "Unknown command=0x%08X!", cmd);
+            ResultCode error = UnimplementedFunction(ErrorModule::FS);
+            cmd_buff[1] = error.raw; // TODO(Link Mauve): use the correct error code for that.
+            return error;
+        }
+        cmd_buff[1] = 0; // No error
+        return MakeResult<bool>(false);
+    }
+};
+class Directory : public Kernel::Session {
+public:
+    Directory(std::unique_ptr<FileSys::DirectoryBackend>&& backend, const FileSys::Path& path)
+            : backend(std::move(backend)), path(path) {
+    }
+    std::string GetName() const override { return "Directory: " + path.DebugStr(); }
+    FileSys::Path path; ///< Path of the directory
+    std::unique_ptr<FileSys::DirectoryBackend> backend; ///< File backend interface
+    ResultVal<bool> SyncRequest() override {
+        u32* cmd_buff = Kernel::GetCommandBuffer();
+        DirectoryCommand cmd = static_cast<DirectoryCommand>(cmd_buff[0]);
+        switch (cmd) {
+        // Read from directory...
+        case DirectoryCommand::Read:
+        {
+            u32 count = cmd_buff[1];
+            u32 address = cmd_buff[3];
+            auto entries = reinterpret_cast<FileSys::Entry*>(Memory::GetPointer(address));
+            LOG_TRACE(Service_FS, "Read %s %s: count=%d",
+                    GetTypeName().c_str(), GetName().c_str(), count);
+            // Number of entries actually read
+            cmd_buff[2] = backend->Read(count, entries);
+            break;
+        }
+        case DirectoryCommand::Close:
+        {
+            LOG_TRACE(Service_FS, "Close %s %s", GetTypeName().c_str(), GetName().c_str());
+            Kernel::g_object_pool.Destroy<Directory>(GetHandle());
+            break;
+        }
+        // Unknown command...
+        default:
+            LOG_ERROR(Service_FS, "Unknown command=0x%08X!", cmd);
+            ResultCode error = UnimplementedFunction(ErrorModule::FS);
+            cmd_buff[1] = error.raw; // TODO(Link Mauve): use the correct error code for that.
+            return MakeResult<bool>(false);
+        }
+        cmd_buff[1] = 0; // No error
+        return MakeResult<bool>(false);
+    }
+};
+////////////////////////////////////////////////////////////////////////////////////////////////////
+/**
+ * Map of registered archives, identified by id code. Once an archive is registered here, it is
+ * never removed until the FS service is shut down.
+ */
+static std::unordered_map<ArchiveIdCode, std::unique_ptr<Archive>> id_code_map;
+/**
+ * Map of active archive handles. Values are pointers to the archives in `idcode_map`.
+ */
+static std::unordered_map<ArchiveHandle, Archive*> handle_map;
+static ArchiveHandle next_handle;
+static Archive* GetArchive(ArchiveHandle handle) {
+    auto itr = handle_map.find(handle);
+    return (itr == handle_map.end()) ? nullptr : itr->second;
+}
+ResultVal<ArchiveHandle> OpenArchive(ArchiveIdCode id_code) {
+    LOG_TRACE(Service_FS, "Opening archive with id code 0x%08X", id_code);
+    auto itr = id_code_map.find(id_code);
+    if (itr == id_code_map.end()) {
+        if (id_code == ArchiveIdCode::SaveData) {
+            // When a SaveData archive is created for the first time, it is not yet formatted
+            // and the save file/directory structure expected by the game has not yet been initialized. 
+            // Returning the NotFormatted error code will signal the game to provision the SaveData archive 
+            // with the files and folders that it expects. 
+            // The FormatSaveData service call will create the SaveData archive when it is called.
+            return ResultCode(ErrorDescription::FS_NotFormatted, ErrorModule::FS,
+                              ErrorSummary::InvalidState, ErrorLevel::Status);
+        }
+        // TODO: Verify error against hardware
+        return ResultCode(ErrorDescription::NotFound, ErrorModule::FS,
+                          ErrorSummary::NotFound, ErrorLevel::Permanent);
+    }
+    // This should never even happen in the first place with 64-bit handles, 
+    while (handle_map.count(next_handle) != 0) {
+        ++next_handle;
+    }
+    handle_map.emplace(next_handle, itr->second.get());
+    return MakeResult<ArchiveHandle>(next_handle++);
+}
+ResultCode CloseArchive(ArchiveHandle handle) {
+    if (handle_map.erase(handle) == 0)
+        return InvalidHandle(ErrorModule::FS);
+    else
+        return RESULT_SUCCESS;
+}
+// TODO(yuriks): This might be what the fs:REG service is for. See the Register/Unregister calls in
+// http://3dbrew.org/wiki/Filesystem_services#ProgramRegistry_service_.22fs:REG.22
+ResultCode CreateArchive(std::unique_ptr<FileSys::ArchiveBackend>&& backend, ArchiveIdCode id_code) {
+    auto result = id_code_map.emplace(id_code, std::make_unique<Archive>(std::move(backend), id_code));
+    bool inserted = result.second;
+    _dbg_assert_msg_(Service_FS, inserted, "Tried to register more than one archive with same id code");
+    auto& archive = result.first->second;
+    LOG_DEBUG(Service_FS, "Registered archive %s with id code 0x%08X", archive->GetName().c_str(), id_code);
+    return RESULT_SUCCESS;
+}
+ResultVal<Handle> OpenFileFromArchive(ArchiveHandle archive_handle, const FileSys::Path& path, const FileSys::Mode mode) {
+    Archive* archive = GetArchive(archive_handle);
+    if (archive == nullptr)
+        return InvalidHandle(ErrorModule::FS);
+    std::unique_ptr<FileSys::FileBackend> backend = archive->backend->OpenFile(path, mode);
+    if (backend == nullptr) {
+        return ResultCode(ErrorDescription::FS_NotFound, ErrorModule::FS,
+                          ErrorSummary::NotFound, ErrorLevel::Status);
+    }
+    auto file = std::make_unique<File>(std::move(backend), path);
+    Handle handle = Kernel::g_object_pool.Create(file.release());
+    return MakeResult<Handle>(handle);
+}
+ResultCode DeleteFileFromArchive(ArchiveHandle archive_handle, const FileSys::Path& path) {
+    Archive* archive = GetArchive(archive_handle);
+    if (archive == nullptr)
+        return InvalidHandle(ErrorModule::FS);
+    if (archive->backend->DeleteFile(path))
+        return RESULT_SUCCESS;
+    return ResultCode(ErrorDescription::NoData, ErrorModule::FS, // TODO: verify description
+                      ErrorSummary::Canceled, ErrorLevel::Status);
+}
+ResultCode RenameFileBetweenArchives(ArchiveHandle src_archive_handle, const FileSys::Path& src_path,
+                                     ArchiveHandle dest_archive_handle, const FileSys::Path& dest_path) {
+    Archive* src_archive = GetArchive(src_archive_handle);
+    Archive* dest_archive = GetArchive(dest_archive_handle);
+    if (src_archive == nullptr || dest_archive == nullptr)
+        return InvalidHandle(ErrorModule::FS);
+    if (src_archive == dest_archive) {
+        if (src_archive->backend->RenameFile(src_path, dest_path))
+            return RESULT_SUCCESS;
+    } else {
+        // TODO: Implement renaming across archives
+        return UnimplementedFunction(ErrorModule::FS);
+    }
+    // TODO(yuriks): This code probably isn't right, it'll return a Status even if the file didn't
+    // exist or similar. Verify.
+    return ResultCode(ErrorDescription::NoData, ErrorModule::FS, // TODO: verify description
+                      ErrorSummary::NothingHappened, ErrorLevel::Status);
+}
+ResultCode DeleteDirectoryFromArchive(ArchiveHandle archive_handle, const FileSys::Path& path) {
+    Archive* archive = GetArchive(archive_handle);
+    if (archive == nullptr)
+        return InvalidHandle(ErrorModule::FS);
+    if (archive->backend->DeleteDirectory(path))
+        return RESULT_SUCCESS;
+    return ResultCode(ErrorDescription::NoData, ErrorModule::FS, // TODO: verify description
+                      ErrorSummary::Canceled, ErrorLevel::Status);
+}
+ResultCode CreateDirectoryFromArchive(ArchiveHandle archive_handle, const FileSys::Path& path) {
+    Archive* archive = GetArchive(archive_handle);
+    if (archive == nullptr)
+        return InvalidHandle(ErrorModule::FS);
+    if (archive->backend->CreateDirectory(path))
+        return RESULT_SUCCESS;
+    return ResultCode(ErrorDescription::NoData, ErrorModule::FS, // TODO: verify description
+                      ErrorSummary::Canceled, ErrorLevel::Status);
+}
+ResultCode RenameDirectoryBetweenArchives(ArchiveHandle src_archive_handle, const FileSys::Path& src_path,
+                                          ArchiveHandle dest_archive_handle, const FileSys::Path& dest_path) {
+    Archive* src_archive = GetArchive(src_archive_handle);
+    Archive* dest_archive = GetArchive(dest_archive_handle);
+    if (src_archive == nullptr || dest_archive == nullptr)
+        return InvalidHandle(ErrorModule::FS);
+    if (src_archive == dest_archive) {
+        if (src_archive->backend->RenameDirectory(src_path, dest_path))
+            return RESULT_SUCCESS;
+    } else {
+        // TODO: Implement renaming across archives
+        return UnimplementedFunction(ErrorModule::FS);
+    }
+    // TODO(yuriks): This code probably isn't right, it'll return a Status even if the file didn't
+    // exist or similar. Verify.
+    return ResultCode(ErrorDescription::NoData, ErrorModule::FS, // TODO: verify description
+                      ErrorSummary::NothingHappened, ErrorLevel::Status);
+}
+/**
+ * Open a Directory from an Archive
+ * @param archive_handle Handle to an open Archive object
+ * @param path Path to the Directory inside of the Archive
+ * @return Opened Directory object
+ */
+ResultVal<Handle> OpenDirectoryFromArchive(ArchiveHandle archive_handle, const FileSys::Path& path) {
+    Archive* archive = GetArchive(archive_handle);
+    if (archive == nullptr)
+        return InvalidHandle(ErrorModule::FS);
+    std::unique_ptr<FileSys::DirectoryBackend> backend = archive->backend->OpenDirectory(path);
+    if (backend == nullptr) {
+        return ResultCode(ErrorDescription::NotFound, ErrorModule::FS,
+                          ErrorSummary::NotFound, ErrorLevel::Permanent);
+    }
+    auto directory = std::make_unique<Directory>(std::move(backend), path);
+    Handle handle = Kernel::g_object_pool.Create(directory.release());
+    return MakeResult<Handle>(handle);
+}
+ResultCode FormatSaveData() {
+    // TODO(Subv): Actually wipe the savedata folder after creating or opening it
+    // Do not create the archive again if it already exists
+    if (id_code_map.find(ArchiveIdCode::SaveData) != id_code_map.end())
+        return UnimplementedFunction(ErrorModule::FS); // TODO(Subv): Find the correct error code
+    // Create the SaveData archive
+    std::string savedata_directory = FileUtil::GetUserPath(D_SAVEDATA_IDX);
+    auto savedata_archive = std::make_unique<FileSys::Archive_SaveData>(savedata_directory,
+        Kernel::g_program_id);
+    if (savedata_archive->Initialize()) {
+        CreateArchive(std::move(savedata_archive), ArchiveIdCode::SaveData);
+        return RESULT_SUCCESS;
+    } else {
+        LOG_ERROR(Service_FS, "Can't instantiate SaveData archive with path %s",
+            savedata_archive->GetMountPoint().c_str());
+        return UnimplementedFunction(ErrorModule::FS); // TODO(Subv): Find the proper error code
+    }
+}
+/// Initialize archives
+void ArchiveInit() {
+    next_handle = 1;
+    // TODO(Link Mauve): Add the other archive types (see here for the known types:
+    // http://3dbrew.org/wiki/FS:OpenArchive#Archive_idcodes).  Currently the only half-finished
+    // archive type is SDMC, so it is the only one getting exposed.
+    std::string sdmc_directory = FileUtil::GetUserPath(D_SDMC_IDX);
+    auto sdmc_archive = std::make_unique<FileSys::Archive_SDMC>(sdmc_directory);
+    if (sdmc_archive->Initialize())
+        CreateArchive(std::move(sdmc_archive), ArchiveIdCode::SDMC);
+    else
+        LOG_ERROR(Service_FS, "Can't instantiate SDMC archive with path %s", sdmc_directory.c_str());
+}
+/// Shutdown archives
+void ArchiveShutdown() {
+    handle_map.clear();
+    id_code_map.clear();
+}
+} // namespace FS
+} // namespace Service
diff --git a/src/core/hle/service/fs/archive.h b/src/core/hle/service/fs/archive.h
new file mode 100644
index 000000000..a128276b6
--- /dev/null
+++ b/src/core/hle/service/fs/archive.h
@@ -0,0 +1,125 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2
+// Refer to the license.txt file included.
+#pragma once
+#include "common/common_types.h"
+#include "core/file_sys/archive_backend.h"
+#include "core/hle/kernel/kernel.h"
+#include "core/hle/result.h"
+namespace Service {
+namespace FS {
+/// Supported archive types
+enum class ArchiveIdCode : u32 {
+    RomFS               = 0x00000003,
+    SaveData            = 0x00000004,
+    ExtSaveData         = 0x00000006,
+    SharedExtSaveData   = 0x00000007,
+    SystemSaveData      = 0x00000008,
+    SDMC                = 0x00000009,
+    SDMCWriteOnly       = 0x0000000A,
+};
+typedef u64 ArchiveHandle;
+/**
+ * Opens an archive
+ * @param id_code IdCode of the archive to open
+ * @return Handle to the opened archive
+ */
+ResultVal<ArchiveHandle> OpenArchive(ArchiveIdCode id_code);
+/**
+ * Closes an archive
+ * @param id_code IdCode of the archive to open
+ */
+ResultCode CloseArchive(ArchiveHandle handle);
+/**
+ * Creates an Archive
+ * @param backend File system backend interface to the archive
+ * @param id_code Id code used to access this type of archive
+ */
+ResultCode CreateArchive(std::unique_ptr<FileSys::ArchiveBackend>&& backend, ArchiveIdCode id_code);
+/**
+ * Open a File from an Archive
+ * @param archive_handle Handle to an open Archive object
+ * @param path Path to the File inside of the Archive
+ * @param mode Mode under which to open the File
+ * @return Handle to the opened File object
+ */
+ResultVal<Handle> OpenFileFromArchive(ArchiveHandle archive_handle, const FileSys::Path& path, const FileSys::Mode mode);
+/**
+ * Delete a File from an Archive
+ * @param archive_handle Handle to an open Archive object
+ * @param path Path to the File inside of the Archive
+ * @return Whether deletion succeeded
+ */
+ResultCode DeleteFileFromArchive(ArchiveHandle archive_handle, const FileSys::Path& path);
+/**
+ * Rename a File between two Archives
+ * @param src_archive_handle Handle to the source Archive object
+ * @param src_path Path to the File inside of the source Archive
+ * @param dest_archive_handle Handle to the destination Archive object
+ * @param dest_path Path to the File inside of the destination Archive
+ * @return Whether rename succeeded
+ */
+ResultCode RenameFileBetweenArchives(ArchiveHandle src_archive_handle, const FileSys::Path& src_path,
+                                     ArchiveHandle dest_archive_handle, const FileSys::Path& dest_path);
+/**
+ * Delete a Directory from an Archive
+ * @param archive_handle Handle to an open Archive object
+ * @param path Path to the Directory inside of the Archive
+ * @return Whether deletion succeeded
+ */
+ResultCode DeleteDirectoryFromArchive(ArchiveHandle archive_handle, const FileSys::Path& path);
+/**
+ * Create a Directory from an Archive
+ * @param archive_handle Handle to an open Archive object
+ * @param path Path to the Directory inside of the Archive
+ * @return Whether creation of directory succeeded
+ */
+ResultCode CreateDirectoryFromArchive(ArchiveHandle archive_handle, const FileSys::Path& path);
+/**
+ * Rename a Directory between two Archives
+ * @param src_archive_handle Handle to the source Archive object
+ * @param src_path Path to the Directory inside of the source Archive
+ * @param dest_archive_handle Handle to the destination Archive object
+ * @param dest_path Path to the Directory inside of the destination Archive
+ * @return Whether rename succeeded
+ */
+ResultCode RenameDirectoryBetweenArchives(ArchiveHandle src_archive_handle, const FileSys::Path& src_path,
+                                          ArchiveHandle dest_archive_handle, const FileSys::Path& dest_path);
+/**
+ * Open a Directory from an Archive
+ * @param archive_handle Handle to an open Archive object
+ * @param path Path to the Directory inside of the Archive
+ * @return Handle to the opened File object
+ */
+ResultVal<Handle> OpenDirectoryFromArchive(ArchiveHandle archive_handle, const FileSys::Path& path);
+/**
+ * Creates a blank SaveData archive.
+ * @return ResultCode 0 on success or the corresponding code on error
+ */
+ResultCode FormatSaveData();
+/// Initialize archives
+void ArchiveInit();
+/// Shutdown archives
+void ArchiveShutdown();
+} // namespace FS
+} // namespace Service
diff --git a/src/core/hle/service/fs/fs_user.cpp b/src/core/hle/service/fs/fs_user.cpp
new file mode 100644
index 000000000..f99d84b2f
--- /dev/null
+++ b/src/core/hle/service/fs/fs_user.cpp
@@ -0,0 +1,529 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2
+// Refer to the license.txt file included.
+#include "common/common.h"
+#include "common/file_util.h"
+#include "common/scope_exit.h"
+#include "common/string_util.h"
+#include "core/hle/result.h"
+#include "core/hle/service/fs/archive.h"
+#include "core/hle/service/fs/fs_user.h"
+#include "core/settings.h"
+////////////////////////////////////////////////////////////////////////////////////////////////////
+// Namespace FS_User
+namespace Service {
+namespace FS {
+static ArchiveHandle MakeArchiveHandle(u32 low_word, u32 high_word) {
+    return (u64)low_word | ((u64)high_word << 32);
+}
+static void Initialize(Service::Interface* self) {
+    u32* cmd_buff = Kernel::GetCommandBuffer();
+    // TODO(Link Mauve): check the behavior when cmd_buff[1] isn't 32, as per
+    // http://3dbrew.org/wiki/FS:Initialize#Request
+    cmd_buff[1] = RESULT_SUCCESS.raw;
+    LOG_DEBUG(Service_FS, "called");
+}
+/**
+ * FS_User::OpenFile service function
+ *  Inputs:
+ *      1 : Transaction
+ *      2 : Archive handle lower word
+ *      3 : Archive handle upper word
+ *      4 : Low path type
+ *      5 : Low path size
+ *      6 : Open flags
+ *      7 : Attributes
+ *      8 : (LowPathSize << 14) | 2
+ *      9 : Low path data pointer
+ *  Outputs:
+ *      1 : Result of function, 0 on success, otherwise error code
+ *      3 : File handle
+ */
+static void OpenFile(Service::Interface* self) {
+    u32* cmd_buff = Kernel::GetCommandBuffer();
+    ArchiveHandle archive_handle = MakeArchiveHandle(cmd_buff[2], cmd_buff[3]);
+    auto filename_type    = static_cast<FileSys::LowPathType>(cmd_buff[4]);
+    u32 filename_size     = cmd_buff[5];
+    FileSys::Mode mode; mode.hex = cmd_buff[6];
+    u32 attributes        = cmd_buff[7]; // TODO(Link Mauve): do something with those attributes.
+    u32 filename_ptr      = cmd_buff[9];
+    FileSys::Path file_path(filename_type, filename_size, filename_ptr);
+    LOG_DEBUG(Service_FS, "path=%s, mode=%d attrs=%u", file_path.DebugStr().c_str(), mode.hex, attributes);
+    ResultVal<Handle> handle = OpenFileFromArchive(archive_handle, file_path, mode);
+    cmd_buff[1] = handle.Code().raw;
+    if (handle.Succeeded()) {
+        cmd_buff[3] = *handle;
+    } else {
+        cmd_buff[3] = 0;
+        LOG_ERROR(Service_FS, "failed to get a handle for file %s", file_path.DebugStr().c_str());
+    }
+}
+/**
+ * FS_User::OpenFileDirectly service function
+ *  Inputs:
+ *      1 : Transaction
+ *      2 : Archive ID
+ *      3 : Archive low path type
+ *      4 : Archive low path size
+ *      5 : File low path type
+ *      6 : File low path size
+ *      7 : Flags
+ *      8 : Attributes
+ *      9 : (ArchiveLowPathSize << 14) | 0x802
+ *      10 : Archive low path
+ *      11 : (FileLowPathSize << 14) | 2
+ *      12 : File low path
+ *  Outputs:
+ *      1 : Result of function, 0 on success, otherwise error code
+ *      3 : File handle
+ */
+static void OpenFileDirectly(Service::Interface* self) {
+    u32* cmd_buff = Kernel::GetCommandBuffer();
+    auto archive_id       = static_cast<FS::ArchiveIdCode>(cmd_buff[2]);
+    auto archivename_type = static_cast<FileSys::LowPathType>(cmd_buff[3]);
+    u32 archivename_size  = cmd_buff[4];
+    auto filename_type    = static_cast<FileSys::LowPathType>(cmd_buff[5]);
+    u32 filename_size     = cmd_buff[6];
+    FileSys::Mode mode; mode.hex = cmd_buff[7];
+    u32 attributes        = cmd_buff[8]; // TODO(Link Mauve): do something with those attributes.
+    u32 archivename_ptr   = cmd_buff[10];
+    u32 filename_ptr      = cmd_buff[12];
+    FileSys::Path archive_path(archivename_type, archivename_size, archivename_ptr);
+    FileSys::Path file_path(filename_type, filename_size, filename_ptr);
+    LOG_DEBUG(Service_FS, "archive_path=%s file_path=%s, mode=%u attributes=%d",
+              archive_path.DebugStr().c_str(), file_path.DebugStr().c_str(), mode.hex, attributes);
+    if (archive_path.GetType() != FileSys::Empty) {
+        LOG_ERROR(Service_FS, "archive LowPath type other than empty is currently unsupported");
+        cmd_buff[1] = UnimplementedFunction(ErrorModule::FS).raw;
+        cmd_buff[3] = 0;
+        return;
+    }
+    ResultVal<ArchiveHandle> archive_handle = OpenArchive(archive_id);
+    if (archive_handle.Failed()) {
+        LOG_ERROR(Service_FS, "failed to get a handle for archive");
+        cmd_buff[1] = archive_handle.Code().raw;
+        cmd_buff[3] = 0;
+        return;
+    }
+    SCOPE_EXIT({ CloseArchive(*archive_handle); });
+    ResultVal<Handle> handle = OpenFileFromArchive(*archive_handle, file_path, mode);
+    cmd_buff[1] = handle.Code().raw;
+    if (handle.Succeeded()) {
+        cmd_buff[3] = *handle;
+    } else {
+        cmd_buff[3] = 0;
+        LOG_ERROR(Service_FS, "failed to get a handle for file %s", file_path.DebugStr().c_str());
+    }
+}
+/*
+ * FS_User::DeleteFile service function
+ *  Inputs:
+ *      2 : Archive handle lower word
+ *      3 : Archive handle upper word
+ *      4 : File path string type
+ *      5 : File path string size
+ *      7 : File path string data
+ *  Outputs:
+ *      1 : Result of function, 0 on success, otherwise error code
+ */
+static void DeleteFile(Service::Interface* self) {
+    u32* cmd_buff = Kernel::GetCommandBuffer();
+    ArchiveHandle archive_handle = MakeArchiveHandle(cmd_buff[2], cmd_buff[3]);
+    auto filename_type    = static_cast<FileSys::LowPathType>(cmd_buff[4]);
+    u32 filename_size     = cmd_buff[5];
+    u32 filename_ptr      = cmd_buff[7];
+    FileSys::Path file_path(filename_type, filename_size, filename_ptr);
+    LOG_DEBUG(Service_FS, "type=%d size=%d data=%s",
+              filename_type, filename_size, file_path.DebugStr().c_str());
+    cmd_buff[1] = DeleteFileFromArchive(archive_handle, file_path).raw;
+}
+/*
+ * FS_User::RenameFile service function
+ *  Inputs:
+ *      2 : Source archive handle lower word
+ *      3 : Source archive handle upper word
+ *      4 : Source file path type
+ *      5 : Source file path size
+ *      6 : Dest archive handle lower word
+ *      7 : Dest archive handle upper word
+ *      8 : Dest file path type
+ *      9 : Dest file path size
+ *      11: Source file path string data
+ *      13: Dest file path string
+ *  Outputs:
+ *      1 : Result of function, 0 on success, otherwise error code
+ */
+static void RenameFile(Service::Interface* self) {
+    u32* cmd_buff = Kernel::GetCommandBuffer();
+    ArchiveHandle src_archive_handle = MakeArchiveHandle(cmd_buff[2], cmd_buff[3]);
+    auto src_filename_type     = static_cast<FileSys::LowPathType>(cmd_buff[4]);
+    u32 src_filename_size      = cmd_buff[5];
+    ArchiveHandle dest_archive_handle = MakeArchiveHandle(cmd_buff[6], cmd_buff[7]);;
+    auto dest_filename_type    = static_cast<FileSys::LowPathType>(cmd_buff[8]);
+    u32 dest_filename_size     = cmd_buff[9];
+    u32 src_filename_ptr       = cmd_buff[11];
+    u32 dest_filename_ptr      = cmd_buff[13];
+    FileSys::Path src_file_path(src_filename_type, src_filename_size, src_filename_ptr);
+    FileSys::Path dest_file_path(dest_filename_type, dest_filename_size, dest_filename_ptr);
+    LOG_DEBUG(Service_FS, "src_type=%d src_size=%d src_data=%s dest_type=%d dest_size=%d dest_data=%s",
+              src_filename_type, src_filename_size, src_file_path.DebugStr().c_str(),
+              dest_filename_type, dest_filename_size, dest_file_path.DebugStr().c_str());
+    cmd_buff[1] = RenameFileBetweenArchives(src_archive_handle, src_file_path, dest_archive_handle, dest_file_path).raw;
+}
+/*
+ * FS_User::DeleteDirectory service function
+ *  Inputs:
+ *      2 : Archive handle lower word
+ *      3 : Archive handle upper word
+ *      4 : Directory path string type
+ *      5 : Directory path string size
+ *      7 : Directory path string data
+ *  Outputs:
+ *      1 : Result of function, 0 on success, otherwise error code
+ */
+static void DeleteDirectory(Service::Interface* self) {
+    u32* cmd_buff = Kernel::GetCommandBuffer();
+    ArchiveHandle archive_handle = MakeArchiveHandle(cmd_buff[2], cmd_buff[3]);
+    auto dirname_type     = static_cast<FileSys::LowPathType>(cmd_buff[4]);
+    u32 dirname_size      = cmd_buff[5];
+    u32 dirname_ptr       = cmd_buff[7];
+    FileSys::Path dir_path(dirname_type, dirname_size, dirname_ptr);
+    LOG_DEBUG(Service_FS, "type=%d size=%d data=%s",
+              dirname_type, dirname_size, dir_path.DebugStr().c_str());
+    
+    cmd_buff[1] = DeleteDirectoryFromArchive(archive_handle, dir_path).raw;
+}
+/*
+ * FS_User::CreateDirectory service function
+ *  Inputs:
+ *      2 : Archive handle lower word
+ *      3 : Archive handle upper word
+ *      4 : Directory path string type
+ *      5 : Directory path string size
+ *      8 : Directory path string data
+ *  Outputs:
+ *      1 : Result of function, 0 on success, otherwise error code
+ */
+static void CreateDirectory(Service::Interface* self) {
+    u32* cmd_buff = Kernel::GetCommandBuffer();
+    ArchiveHandle archive_handle = MakeArchiveHandle(cmd_buff[2], cmd_buff[3]);
+    auto dirname_type = static_cast<FileSys::LowPathType>(cmd_buff[4]);
+    u32 dirname_size = cmd_buff[5];
+    u32 dirname_ptr = cmd_buff[8];
+    FileSys::Path dir_path(dirname_type, dirname_size, dirname_ptr);
+    LOG_DEBUG(Service_FS, "type=%d size=%d data=%s", dirname_type, dirname_size, dir_path.DebugStr().c_str());
+    cmd_buff[1] = CreateDirectoryFromArchive(archive_handle, dir_path).raw;
+}
+/*
+ * FS_User::RenameDirectory service function
+ *  Inputs:
+ *      2 : Source archive handle lower word
+ *      3 : Source archive handle upper word
+ *      4 : Source dir path type
+ *      5 : Source dir path size
+ *      6 : Dest archive handle lower word
+ *      7 : Dest archive handle upper word
+ *      8 : Dest dir path type
+ *      9 : Dest dir path size
+ *      11: Source dir path string data
+ *      13: Dest dir path string
+ *  Outputs:
+ *      1 : Result of function, 0 on success, otherwise error code
+ */
+static void RenameDirectory(Service::Interface* self) {
+    u32* cmd_buff = Kernel::GetCommandBuffer();
+    ArchiveHandle src_archive_handle = MakeArchiveHandle(cmd_buff[2], cmd_buff[3]);
+    auto src_dirname_type      = static_cast<FileSys::LowPathType>(cmd_buff[4]);
+    u32 src_dirname_size       = cmd_buff[5];
+    ArchiveHandle dest_archive_handle = MakeArchiveHandle(cmd_buff[6], cmd_buff[7]);
+    auto dest_dirname_type     = static_cast<FileSys::LowPathType>(cmd_buff[8]);
+    u32 dest_dirname_size      = cmd_buff[9];
+    u32 src_dirname_ptr        = cmd_buff[11];
+    u32 dest_dirname_ptr       = cmd_buff[13];
+    FileSys::Path src_dir_path(src_dirname_type, src_dirname_size, src_dirname_ptr);
+    FileSys::Path dest_dir_path(dest_dirname_type, dest_dirname_size, dest_dirname_ptr);
+    LOG_DEBUG(Service_FS, "src_type=%d src_size=%d src_data=%s dest_type=%d dest_size=%d dest_data=%s",
+              src_dirname_type, src_dirname_size, src_dir_path.DebugStr().c_str(),
+              dest_dirname_type, dest_dirname_size, dest_dir_path.DebugStr().c_str());
+    cmd_buff[1] = RenameDirectoryBetweenArchives(src_archive_handle, src_dir_path, dest_archive_handle, dest_dir_path).raw;
+}
+/**
+ * FS_User::OpenDirectory service function
+ *  Inputs:
+ *      1 : Archive handle low word
+ *      2 : Archive handle high word
+ *      3 : Low path type
+ *      4 : Low path size
+ *      7 : (LowPathSize << 14) | 2
+ *      8 : Low path data pointer
+ *  Outputs:
+ *      1 : Result of function, 0 on success, otherwise error code
+ *      3 : Directory handle
+ */
+static void OpenDirectory(Service::Interface* self) {
+    u32* cmd_buff = Kernel::GetCommandBuffer();
+    ArchiveHandle archive_handle = MakeArchiveHandle(cmd_buff[1], cmd_buff[2]);
+    auto dirname_type = static_cast<FileSys::LowPathType>(cmd_buff[3]);
+    u32 dirname_size = cmd_buff[4];
+    u32 dirname_ptr = cmd_buff[6];
+    FileSys::Path dir_path(dirname_type, dirname_size, dirname_ptr);
+    LOG_DEBUG(Service_FS, "type=%d size=%d data=%s", dirname_type, dirname_size, dir_path.DebugStr().c_str());
+    ResultVal<Handle> handle = OpenDirectoryFromArchive(archive_handle, dir_path);
+    cmd_buff[1] = handle.Code().raw;
+    if (handle.Succeeded()) {
+        cmd_buff[3] = *handle;
+    } else {
+        LOG_ERROR(Service_FS, "failed to get a handle for directory");
+    }
+}
+/**
+ * FS_User::OpenArchive service function
+ *  Inputs:
+ *      1 : Archive ID
+ *      2 : Archive low path type
+ *      3 : Archive low path size
+ *      4 : (LowPathSize << 14) | 2
+ *      5 : Archive low path
+ *  Outputs:
+ *      1 : Result of function, 0 on success, otherwise error code
+ *      2 : Archive handle lower word (unused)
+ *      3 : Archive handle upper word (same as file handle)
+ */
+static void OpenArchive(Service::Interface* self) {
+    u32* cmd_buff = Kernel::GetCommandBuffer();
+    auto archive_id       = static_cast<FS::ArchiveIdCode>(cmd_buff[1]);
+    auto archivename_type = static_cast<FileSys::LowPathType>(cmd_buff[2]);
+    u32 archivename_size  = cmd_buff[3];
+    u32 archivename_ptr   = cmd_buff[5];
+    FileSys::Path archive_path(archivename_type, archivename_size, archivename_ptr);
+    LOG_DEBUG(Service_FS, "archive_path=%s", archive_path.DebugStr().c_str());
+    if (archive_path.GetType() != FileSys::Empty) {
+        LOG_ERROR(Service_FS, "archive LowPath type other than empty is currently unsupported");
+        cmd_buff[1] = UnimplementedFunction(ErrorModule::FS).raw;
+        return;
+    }
+    ResultVal<ArchiveHandle> handle = OpenArchive(archive_id);
+    cmd_buff[1] = handle.Code().raw;
+    if (handle.Succeeded()) {
+        cmd_buff[2] = *handle & 0xFFFFFFFF;
+        cmd_buff[3] = (*handle >> 32) & 0xFFFFFFFF;
+    } else {
+        cmd_buff[2] = cmd_buff[3] = 0;
+        LOG_ERROR(Service_FS, "failed to get a handle for archive");
+    }
+}
+/**
+ * FS_User::CloseArchive service function
+ *  Inputs:
+ *      0 : 0x080E0080
+ *      1 : Archive handle low word
+ *      2 : Archive handle high word
+ *  Outputs:
+ *      0 : ??? TODO(yuriks): Verify return header
+ *      1 : Result of function, 0 on success, otherwise error code
+ */
+static void CloseArchive(Service::Interface* self) {
+    u32* cmd_buff = Kernel::GetCommandBuffer();
+    ArchiveHandle archive_handle = MakeArchiveHandle(cmd_buff[1], cmd_buff[2]);
+    cmd_buff[1] = CloseArchive(archive_handle).raw;
+}
+/*
+* FS_User::IsSdmcDetected service function
+*  Outputs:
+*      1 : Result of function, 0 on success, otherwise error code
+*      2 : Whether the Sdmc could be detected
+*/
+static void IsSdmcDetected(Service::Interface* self) {
+    u32* cmd_buff = Kernel::GetCommandBuffer();
+    cmd_buff[1] = 0;
+    cmd_buff[2] = Settings::values.use_virtual_sd ? 1 : 0;
+    LOG_DEBUG(Service_FS, "called");
+}
+/**
+ * FS_User::FormatSaveData service function
+ *  Inputs:
+ *  Outputs:
+ *      1 : Result of function, 0 on success, otherwise error code
+ */
+static void FormatSaveData(Service::Interface* self) {
+    u32* cmd_buff = Kernel::GetCommandBuffer();
+    LOG_DEBUG(Service_FS, "(STUBBED)");
+    // TODO(Subv): Find out what the inputs and outputs of this function are
+    cmd_buff[1] = FormatSaveData().raw;
+}
+/**
+ * FS_User::FormatThisUserSaveData service function
+ *  Inputs:
+ *  Outputs:
+ *      1 : Result of function, 0 on success, otherwise error code
+ */
+static void FormatThisUserSaveData(Service::Interface* self) {
+    u32* cmd_buff = Kernel::GetCommandBuffer();
+    LOG_DEBUG(Service_FS, "(STUBBED)");
+    // TODO(Subv): Find out what the inputs and outputs of this function are
+    cmd_buff[1] = FormatSaveData().raw;
+}
+const FSUserInterface::FunctionInfo FunctionTable[] = {
+    {0x000100C6, nullptr,               "Dummy1"},
+    {0x040100C4, nullptr,               "Control"},
+    {0x08010002, Initialize,            "Initialize"},
+    {0x080201C2, OpenFile,              "OpenFile"},
+    {0x08030204, OpenFileDirectly,      "OpenFileDirectly"},
+    {0x08040142, DeleteFile,            "DeleteFile"},
+    {0x08050244, RenameFile,            "RenameFile"},
+    {0x08060142, DeleteDirectory,       "DeleteDirectory"},
+    {0x08070142, nullptr,               "DeleteDirectoryRecursively"},
+    {0x08080202, nullptr,               "CreateFile"},
+    {0x08090182, CreateDirectory,       "CreateDirectory"},
+    {0x080A0244, RenameDirectory,       "RenameDirectory"},
+    {0x080B0102, OpenDirectory,         "OpenDirectory"},
+    {0x080C00C2, OpenArchive,           "OpenArchive"},
+    {0x080D0144, nullptr,               "ControlArchive"},
+    {0x080E0080, CloseArchive,          "CloseArchive"},
+    {0x080F0180, FormatThisUserSaveData,"FormatThisUserSaveData"},
+    {0x08100200, nullptr,               "CreateSystemSaveData"},
+    {0x08110040, nullptr,               "DeleteSystemSaveData"},
+    {0x08120080, nullptr,               "GetFreeBytes"},
+    {0x08130000, nullptr,               "GetCardType"},
+    {0x08140000, nullptr,               "GetSdmcArchiveResource"},
+    {0x08150000, nullptr,               "GetNandArchiveResource"},
+    {0x08160000, nullptr,               "GetSdmcFatfsErro"},
+    {0x08170000, IsSdmcDetected,        "IsSdmcDetected"},
+    {0x08180000, nullptr,               "IsSdmcWritable"},
+    {0x08190042, nullptr,               "GetSdmcCid"},
+    {0x081A0042, nullptr,               "GetNandCid"},
+    {0x081B0000, nullptr,               "GetSdmcSpeedInfo"},
+    {0x081C0000, nullptr,               "GetNandSpeedInfo"},
+    {0x081D0042, nullptr,               "GetSdmcLog"},
+    {0x081E0042, nullptr,               "GetNandLog"},
+    {0x081F0000, nullptr,               "ClearSdmcLog"},
+    {0x08200000, nullptr,               "ClearNandLog"},
+    {0x08210000, nullptr,               "CardSlotIsInserted"},
+    {0x08220000, nullptr,               "CardSlotPowerOn"},
+    {0x08230000, nullptr,               "CardSlotPowerOff"},
+    {0x08240000, nullptr,               "CardSlotGetCardIFPowerStatus"},
+    {0x08250040, nullptr,               "CardNorDirectCommand"},
+    {0x08260080, nullptr,               "CardNorDirectCommandWithAddress"},
+    {0x08270082, nullptr,               "CardNorDirectRead"},
+    {0x082800C2, nullptr,               "CardNorDirectReadWithAddress"},
+    {0x08290082, nullptr,               "CardNorDirectWrite"},
+    {0x082A00C2, nullptr,               "CardNorDirectWriteWithAddress"},
+    {0x082B00C2, nullptr,               "CardNorDirectRead_4xIO"},
+    {0x082C0082, nullptr,               "CardNorDirectCpuWriteWithoutVerify"},
+    {0x082D0040, nullptr,               "CardNorDirectSectorEraseWithoutVerify"},
+    {0x082E0040, nullptr,               "GetProductInfo"},
+    {0x082F0040, nullptr,               "GetProgramLaunchInfo"},
+    {0x08300182, nullptr,               "CreateExtSaveData"},
+    {0x08310180, nullptr,               "CreateSharedExtSaveData"},
+    {0x08320102, nullptr,               "ReadExtSaveDataIcon"},
+    {0x08330082, nullptr,               "EnumerateExtSaveData"},
+    {0x08340082, nullptr,               "EnumerateSharedExtSaveData"},
+    {0x08350080, nullptr,               "DeleteExtSaveData"},
+    {0x08360080, nullptr,               "DeleteSharedExtSaveData"},
+    {0x08370040, nullptr,               "SetCardSpiBaudRate"},
+    {0x08380040, nullptr,               "SetCardSpiBusMode"},
+    {0x08390000, nullptr,               "SendInitializeInfoTo9"},
+    {0x083A0100, nullptr,               "GetSpecialContentIndex"},
+    {0x083B00C2, nullptr,               "GetLegacyRomHeader"},
+    {0x083C00C2, nullptr,               "GetLegacyBannerData"},
+    {0x083D0100, nullptr,               "CheckAuthorityToAccessExtSaveData"},
+    {0x083E00C2, nullptr,               "QueryTotalQuotaSize"},
+    {0x083F00C0, nullptr,               "GetExtDataBlockSize"},
+    {0x08400040, nullptr,               "AbnegateAccessRight"},
+    {0x08410000, nullptr,               "DeleteSdmcRoot"},
+    {0x08420040, nullptr,               "DeleteAllExtSaveDataOnNand"},
+    {0x08430000, nullptr,               "InitializeCtrFileSystem"},
+    {0x08440000, nullptr,               "CreateSeed"},
+    {0x084500C2, nullptr,               "GetFormatInfo"},
+    {0x08460102, nullptr,               "GetLegacyRomHeader2"},
+    {0x08470180, nullptr,               "FormatCtrCardUserSaveData"},
+    {0x08480042, nullptr,               "GetSdmcCtrRootPath"},
+    {0x08490040, nullptr,               "GetArchiveResource"},
+    {0x084A0002, nullptr,               "ExportIntegrityVerificationSeed"},
+    {0x084B0002, nullptr,               "ImportIntegrityVerificationSeed"},
+    {0x084C0242, FormatSaveData,        "FormatSaveData"},
+    {0x084D0102, nullptr,               "GetLegacySubBannerData"},
+    {0x084E0342, nullptr,               "UpdateSha256Context"},
+    {0x084F0102, nullptr,               "ReadSpecialFile"},
+    {0x08500040, nullptr,               "GetSpecialFileSize"},
+    {0x08580000, nullptr,               "GetMovableSedHashedKeyYRandomData"},
+    {0x08610042, nullptr,               "InitializeWithSdkVersion"},
+    {0x08620040, nullptr,               "SetPriority"},
+    {0x08630000, nullptr,               "GetPriority"},
+};
+////////////////////////////////////////////////////////////////////////////////////////////////////
+// Interface class
+FSUserInterface::FSUserInterface() {
+    Register(FunctionTable, ARRAY_SIZE(FunctionTable));
+}
+FSUserInterface::~FSUserInterface() {
+}
+} // namespace FS
+} // namespace Service
diff --git a/src/core/hle/service/fs/fs_user.h b/src/core/hle/service/fs/fs_user.h
new file mode 100644
index 000000000..80e3804e0
--- /dev/null
+++ b/src/core/hle/service/fs/fs_user.h
@@ -0,0 +1,33 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2
+// Refer to the license.txt file included.
+#pragma once
+#include "core/hle/service/service.h"
+////////////////////////////////////////////////////////////////////////////////////////////////////
+// Namespace FS_User
+namespace Service {
+namespace FS {
+/// Interface to "fs:USER" service
+class FSUserInterface : public Service::Interface {
+public:
+    FSUserInterface();
+    ~FSUserInterface();
+    /**
+     * Gets the string port name used by CTROS for the service
+     * @return Port name of service
+     */
+    std::string GetPortName() const override {
+        return "fs:USER";
+    }
+};
+} // namespace FS
+} // namespace Service
diff --git a/src/core/hle/service/fs_user.cpp b/src/core/hle/service/fs_user.cpp
deleted file mode 100644
index 48d806e2f..000000000
--- a/src/core/hle/service/fs_user.cpp
+++ /dev/null
@@ -1,354 +0,0 @@
-// Copyright 2014 Citra Emulator Project
-// Licensed under GPLv2
-// Refer to the license.txt file included.
-#include "common/common.h"
-#include "fs_user.h"
-#include "core/settings.h"
-#include "core/hle/kernel/archive.h"
-////////////////////////////////////////////////////////////////////////////////////////////////////
-// Namespace FS_User
-namespace FS_User {
-// Command to access archive file
-enum class LowPathType : u32 {
-    Invalid = 0,
-    Empty   = 1,
-    Binary  = 2,
-    Char    = 3,
-    Wchar   = 4
-};
-std::string GetStringFromCmdBuff(const u32 pointer, const u32 size) {
-    auto data = reinterpret_cast<const char*>(Memory::GetPointer(pointer));
-    return std::string(data, size - 1);
-}
-// We currently return 0 for success and -1 for failure in cmd_buff[1].  -1 was chosen because it
-// puts all the sections of the http://3dbrew.org/wiki/Error_codes to something non-zero, to make
-// sure we don't mislead the application into thinking something worked.
-void Initialize(Service::Interface* self) {
-    u32* cmd_buff = Service::GetCommandBuffer();
-    // TODO(Link Mauve): check the behavior when cmd_buff[1] isn't 32, as per
-    // http://3dbrew.org/wiki/FS:Initialize#Request
-    cmd_buff[1] = 0;
-    DEBUG_LOG(KERNEL, "called");
-}
-void OpenFile(Service::Interface* self) {
-    u32* cmd_buff = Service::GetCommandBuffer();
-    u32 transaction = cmd_buff[1];
-    // TODO(Link Mauve): cmd_buff[2], aka archive handle lower word, isn't used according to
-    // 3dmoo's or ctrulib's implementations.  Triple check if it's really the case.
-    Handle archive_handle = static_cast<Handle>(cmd_buff[3]);
-    LowPathType type = static_cast<LowPathType>(cmd_buff[4]);
-    u32 size = cmd_buff[5];
-    FileSys::Mode mode; mode.hex = cmd_buff[6];
-    u32 attributes = cmd_buff[7]; // TODO(Link Mauve): do something with those attributes.
-    u32 pointer = cmd_buff[9];
-    if (type != LowPathType::Char) {
-        ERROR_LOG(KERNEL, "file LowPath type other than char is currently unsupported");
-        cmd_buff[1] = -1;
-        return;
-    }
-    std::string file_name = GetStringFromCmdBuff(pointer, size);
-    DEBUG_LOG(KERNEL, "type=%d size=%d mode=%d attrs=%d data=%s", type, size, mode, attributes, file_name.c_str());
-    Handle handle = Kernel::OpenFileFromArchive(archive_handle, file_name, mode);
-    if (handle) {
-        cmd_buff[1] = 0;
-        cmd_buff[3] = handle;
-    } else {
-        ERROR_LOG(KERNEL, "failed to get a handle for file %s", file_name.c_str());
-        // TODO(Link Mauve): check for the actual error values, this one was just chosen arbitrarily.
-        cmd_buff[1] = -1;
-    }
-    DEBUG_LOG(KERNEL, "called");
-}
-void OpenFileDirectly(Service::Interface* self) {
-    u32* cmd_buff = Service::GetCommandBuffer();
-    u32 transaction = cmd_buff[1];
-    auto archive_id = static_cast<FileSys::Archive::IdCode>(cmd_buff[2]);
-    LowPathType archive_type = static_cast<LowPathType>(cmd_buff[3]);
-    u32 archive_size = cmd_buff[4];
-    LowPathType file_type = static_cast<LowPathType>(cmd_buff[5]);
-    u32 size = cmd_buff[6];
-    FileSys::Mode mode; mode.hex = cmd_buff[7];
-    u32 attributes = cmd_buff[8]; // TODO(Link Mauve): do something with those attributes.
-    u32 archive_pointer = cmd_buff[10];
-    u32 pointer = cmd_buff[12];
-    if (archive_type != LowPathType::Empty) {
-        ERROR_LOG(KERNEL, "archive LowPath type other than empty is currently unsupported");
-        cmd_buff[1] = -1;
-        return;
-    }
-    std::string archive_name = GetStringFromCmdBuff(archive_pointer, archive_size);
-    std::string file_name = GetStringFromCmdBuff(pointer, size);
-    DEBUG_LOG(KERNEL, "archive_type=%d archive_size=%d archive_data=%s "
-                      "file_type=%d file_size=%d file_mode=%d file_attrs=%d file_data=%s",
-              archive_type, archive_size, archive_name.c_str(),
-              file_type, size, mode, attributes, file_name.c_str());
-    // TODO(Link Mauve): check if we should even get a handle for the archive, and don't leak it.
-    Handle archive_handle = Kernel::OpenArchive(archive_id);
-    if (archive_handle) {
-        cmd_buff[1] = 0;
-        // cmd_buff[2] isn't used according to 3dmoo's implementation.
-        cmd_buff[3] = archive_handle;
-    } else {
-        ERROR_LOG(KERNEL, "failed to get a handle for archive %s", archive_name.c_str());
-        // TODO(Link Mauve): check for the actual error values, this one was just chosen arbitrarily.
-        cmd_buff[1] = -1;
-        return;
-    }
-    if (file_type != LowPathType::Char) {
-        WARN_LOG(KERNEL, "file LowPath type other than char is currently unsupported; returning archive handle instead");
-        return;
-    }
-    Handle handle = Kernel::OpenFileFromArchive(archive_handle, file_name, mode);
-    if (handle) {
-        cmd_buff[1] = 0;
-        cmd_buff[3] = handle;
-    } else {
-        ERROR_LOG(KERNEL, "failed to get a handle for file %s", file_name.c_str());
-        // TODO(Link Mauve): check for the actual error values, this one was just chosen arbitrarily.
-        cmd_buff[1] = -1;
-    }
-    DEBUG_LOG(KERNEL, "called");
-}
-/*
- * FS_User::CreateDirectory service function
- *  Inputs:
- *      2 : Archive handle lower word
- *      3 : Archive handle upper word
- *      4 : Directory path string type
- *      5 : Directory path string size
- *      8 : Directory path string data
- *  Outputs:
- *      1 : Result of function, 0 on success, otherwise error code
- */
-void CreateDirectory(Service::Interface* self) {
-    u32* cmd_buff = Service::GetCommandBuffer();
-    // TODO: cmd_buff[2], aka archive handle lower word, isn't used according to
-    // 3dmoo's or ctrulib's implementations.  Triple check if it's really the case.
-    Handle archive_handle = static_cast<Handle>(cmd_buff[3]);
-    LowPathType type = static_cast<LowPathType>(cmd_buff[4]);
-    u32 name_size = cmd_buff[5];
-    u32 name_offset = cmd_buff[8];
-    if (type != LowPathType::Char) {
-        ERROR_LOG(KERNEL, "directory LowPath type other than char is currently unsupported");
-        cmd_buff[1] = -1;
-        return;
-    }
-    std::string dir_name = GetStringFromCmdBuff(name_offset, name_size);
-    DEBUG_LOG(KERNEL, "type=%d size=%d data=%s", type, name_size, dir_name.c_str());
-    cmd_buff[1] = Kernel::CreateDirectoryFromArchive(archive_handle, dir_name);
-    DEBUG_LOG(KERNEL, "called");
-}
-void OpenDirectory(Service::Interface* self) {
-    u32* cmd_buff = Service::GetCommandBuffer();
-    // TODO(Link Mauve): cmd_buff[2], aka archive handle lower word, isn't used according to
-    // 3dmoo's or ctrulib's implementations.  Triple check if it's really the case.
-    Handle archive_handle = static_cast<Handle>(cmd_buff[2]);
-    LowPathType type = static_cast<LowPathType>(cmd_buff[3]);
-    u32 size = cmd_buff[4];
-    u32 pointer = cmd_buff[6];
-    if (type != LowPathType::Char) {
-        ERROR_LOG(KERNEL, "directory LowPath type other than char is currently unsupported");
-        cmd_buff[1] = -1;
-        return;
-    }
-    std::string dir_name = GetStringFromCmdBuff(pointer, size);
-    DEBUG_LOG(KERNEL, "type=%d size=%d data=%s", type, size, dir_name.c_str());
-    Handle handle = Kernel::OpenDirectoryFromArchive(archive_handle, dir_name);
-    if (handle) {
-        cmd_buff[1] = 0;
-        cmd_buff[3] = handle;
-    } else {
-        ERROR_LOG(KERNEL, "failed to get a handle for directory %s", dir_name.c_str());
-        // TODO(Link Mauve): check for the actual error values, this one was just chosen arbitrarily.
-        cmd_buff[1] = -1;
-    }
-    DEBUG_LOG(KERNEL, "called");
-}
-void OpenArchive(Service::Interface* self) {
-    u32* cmd_buff = Service::GetCommandBuffer();
-    auto arch_id = static_cast<FileSys::Archive::IdCode>(cmd_buff[1]);
-    LowPathType type = static_cast<LowPathType>(cmd_buff[2]);
-    u32 size = cmd_buff[3];
-    u32 pointer = cmd_buff[5];
-    if (type != LowPathType::Empty) {
-        ERROR_LOG(KERNEL, "archive LowPath type other than empty is currently unsupported");
-        cmd_buff[1] = -1;
-        return;
-    }
-    std::string archive_name = GetStringFromCmdBuff(pointer, size);
-    DEBUG_LOG(KERNEL, "type=%d size=%d data=%s", type, size, archive_name.c_str());
-    Handle handle = Kernel::OpenArchive(arch_id);
-    if (handle) {
-        cmd_buff[1] = 0;
-        // cmd_buff[2] isn't used according to 3dmoo's implementation.
-        cmd_buff[3] = handle;
-    } else {
-        ERROR_LOG(KERNEL, "failed to get a handle for archive %s", archive_name.c_str());
-        // TODO(Link Mauve): check for the actual error values, this one was just chosen arbitrarily.
-        cmd_buff[1] = -1;
-    }
-    DEBUG_LOG(KERNEL, "called");
-}
-/*
-* FS_User::IsSdmcDetected service function
-*  Outputs:
-*      1 : Result of function, 0 on success, otherwise error code
-*      2 : Whether the Sdmc could be detected
-*/
-void IsSdmcDetected(Service::Interface* self) {
-    u32* cmd_buff = Service::GetCommandBuffer();
-    cmd_buff[1] = 0;
-    cmd_buff[2] = Settings::values.use_virtual_sd ? 1 : 0;
-    
-    DEBUG_LOG(KERNEL, "called");
-}
-const Interface::FunctionInfo FunctionTable[] = {
-    {0x000100C6, nullptr,               "Dummy1"},
-    {0x040100C4, nullptr,               "Control"},
-    {0x08010002, Initialize,            "Initialize"},
-    {0x080201C2, OpenFile,              "OpenFile"},
-    {0x08030204, OpenFileDirectly,      "OpenFileDirectly"},
-    {0x08040142, nullptr,               "DeleteFile"},
-    {0x08050244, nullptr,               "RenameFile"},
-    {0x08060142, nullptr,               "DeleteDirectory"},
-    {0x08070142, nullptr,               "DeleteDirectoryRecursively"},
-    {0x08080202, nullptr,               "CreateFile"},
-    {0x08090182, CreateDirectory,       "CreateDirectory"},
-    {0x080A0244, nullptr,               "RenameDirectory"},
-    {0x080B0102, OpenDirectory,         "OpenDirectory"},
-    {0x080C00C2, OpenArchive,           "OpenArchive"},
-    {0x080D0144, nullptr,               "ControlArchive"},
-    {0x080E0080, nullptr,               "CloseArchive"},
-    {0x080F0180, nullptr,               "FormatThisUserSaveData"},
-    {0x08100200, nullptr,               "CreateSystemSaveData"},
-    {0x08110040, nullptr,               "DeleteSystemSaveData"},
-    {0x08120080, nullptr,               "GetFreeBytes"},
-    {0x08130000, nullptr,               "GetCardType"},
-    {0x08140000, nullptr,               "GetSdmcArchiveResource"},
-    {0x08150000, nullptr,               "GetNandArchiveResource"},
-    {0x08160000, nullptr,               "GetSdmcFatfsErro"},
-    {0x08170000, IsSdmcDetected,        "IsSdmcDetected"},
-    {0x08180000, nullptr,               "IsSdmcWritable"},
-    {0x08190042, nullptr,               "GetSdmcCid"},
-    {0x081A0042, nullptr,               "GetNandCid"},
-    {0x081B0000, nullptr,               "GetSdmcSpeedInfo"},
-    {0x081C0000, nullptr,               "GetNandSpeedInfo"},
-    {0x081D0042, nullptr,               "GetSdmcLog"},
-    {0x081E0042, nullptr,               "GetNandLog"},
-    {0x081F0000, nullptr,               "ClearSdmcLog"},
-    {0x08200000, nullptr,               "ClearNandLog"},
-    {0x08210000, nullptr,               "CardSlotIsInserted"},
-    {0x08220000, nullptr,               "CardSlotPowerOn"},
-    {0x08230000, nullptr,               "CardSlotPowerOff"},
-    {0x08240000, nullptr,               "CardSlotGetCardIFPowerStatus"},
-    {0x08250040, nullptr,               "CardNorDirectCommand"},
-    {0x08260080, nullptr,               "CardNorDirectCommandWithAddress"},
-    {0x08270082, nullptr,               "CardNorDirectRead"},
-    {0x082800C2, nullptr,               "CardNorDirectReadWithAddress"},
-    {0x08290082, nullptr,               "CardNorDirectWrite"},
-    {0x082A00C2, nullptr,               "CardNorDirectWriteWithAddress"},
-    {0x082B00C2, nullptr,               "CardNorDirectRead_4xIO"},
-    {0x082C0082, nullptr,               "CardNorDirectCpuWriteWithoutVerify"},
-    {0x082D0040, nullptr,               "CardNorDirectSectorEraseWithoutVerify"},
-    {0x082E0040, nullptr,               "GetProductInfo"},
-    {0x082F0040, nullptr,               "GetProgramLaunchInfo"},
-    {0x08300182, nullptr,               "CreateExtSaveData"},
-    {0x08310180, nullptr,               "CreateSharedExtSaveData"},
-    {0x08320102, nullptr,               "ReadExtSaveDataIcon"},
-    {0x08330082, nullptr,               "EnumerateExtSaveData"},
-    {0x08340082, nullptr,               "EnumerateSharedExtSaveData"},
-    {0x08350080, nullptr,               "DeleteExtSaveData"},
-    {0x08360080, nullptr,               "DeleteSharedExtSaveData"},
-    {0x08370040, nullptr,               "SetCardSpiBaudRate"},
-    {0x08380040, nullptr,               "SetCardSpiBusMode"},
-    {0x08390000, nullptr,               "SendInitializeInfoTo9"},
-    {0x083A0100, nullptr,               "GetSpecialContentIndex"},
-    {0x083B00C2, nullptr,               "GetLegacyRomHeader"},
-    {0x083C00C2, nullptr,               "GetLegacyBannerData"},
-    {0x083D0100, nullptr,               "CheckAuthorityToAccessExtSaveData"},
-    {0x083E00C2, nullptr,               "QueryTotalQuotaSize"},
-    {0x083F00C0, nullptr,               "GetExtDataBlockSize"},
-    {0x08400040, nullptr,               "AbnegateAccessRight"},
-    {0x08410000, nullptr,               "DeleteSdmcRoot"},
-    {0x08420040, nullptr,               "DeleteAllExtSaveDataOnNand"},
-    {0x08430000, nullptr,               "InitializeCtrFileSystem"},
-    {0x08440000, nullptr,               "CreateSeed"},
-    {0x084500C2, nullptr,               "GetFormatInfo"},
-    {0x08460102, nullptr,               "GetLegacyRomHeader2"},
-    {0x08470180, nullptr,               "FormatCtrCardUserSaveData"},
-    {0x08480042, nullptr,               "GetSdmcCtrRootPath"},
-    {0x08490040, nullptr,               "GetArchiveResource"},
-    {0x084A0002, nullptr,               "ExportIntegrityVerificationSeed"},
-    {0x084B0002, nullptr,               "ImportIntegrityVerificationSeed"},
-    {0x084C0242, nullptr,               "FormatSaveData"},
-    {0x084D0102, nullptr,               "GetLegacySubBannerData"},
-    {0x084E0342, nullptr,               "UpdateSha256Context"},
-    {0x084F0102, nullptr,               "ReadSpecialFile"},
-    {0x08500040, nullptr,               "GetSpecialFileSize"},
-    {0x08580000, nullptr,               "GetMovableSedHashedKeyYRandomData"},
-    {0x08610042, nullptr,               "InitializeWithSdkVersion"},
-    {0x08620040, nullptr,               "SetPriority"},
-    {0x08630000, nullptr,               "GetPriority"},
-};
-////////////////////////////////////////////////////////////////////////////////////////////////////
-// Interface class
-Interface::Interface() {
-    Register(FunctionTable, ARRAY_SIZE(FunctionTable));
-}
-Interface::~Interface() {
-}
-} // namespace
diff --git a/src/core/hle/service/gsp_gpu.cpp b/src/core/hle/service/gsp_gpu.cpp
index 6119e6300..db8027142 100644
--- a/src/core/hle/service/gsp_gpu.cpp
+++ b/src/core/hle/service/gsp_gpu.cpp
@@ -28,41 +28,36 @@ u32 g_thread_id = 1;            ///< Thread index into interrupt relay queue, 1
 /// Gets a pointer to a thread command buffer in GSP shared memory
 static inline u8* GetCommandBuffer(u32 thread_id) {
-    if (0 == g_shared_memory)
+    ResultVal<u8*> ptr = Kernel::GetSharedMemoryPointer(g_shared_memory, 0x800 + (thread_id * sizeof(CommandBuffer)));
-        return nullptr;
+    return ptr.ValueOr(nullptr);
-    return Kernel::GetSharedMemoryPointer(g_shared_memory,
-        0x800 + (thread_id * sizeof(CommandBuffer)));
 }
 static inline FrameBufferUpdate* GetFrameBufferInfo(u32 thread_id, u32 screen_index) {
-    if (0 == g_shared_memory)
+    _dbg_assert_msg_(Service_GSP, screen_index < 2, "Invalid screen index");
-        return nullptr;
-    _dbg_assert_msg_(GSP, screen_index < 2, "Invalid screen index");
    // For each thread there are two FrameBufferUpdate fields
    u32 offset = 0x200 + (2 * thread_id + screen_index) * sizeof(FrameBufferUpdate);
-    return (FrameBufferUpdate*)Kernel::GetSharedMemoryPointer(g_shared_memory, offset);
+    ResultVal<u8*> ptr = Kernel::GetSharedMemoryPointer(g_shared_memory, offset);
+    return reinterpret_cast<FrameBufferUpdate*>(ptr.ValueOr(nullptr));
 }
 /// Gets a pointer to the interrupt relay queue for a given thread index
 static inline InterruptRelayQueue* GetInterruptRelayQueue(u32 thread_id) {
-    return (InterruptRelayQueue*)Kernel::GetSharedMemoryPointer(g_shared_memory,
+    ResultVal<u8*> ptr = Kernel::GetSharedMemoryPointer(g_shared_memory, sizeof(InterruptRelayQueue) * thread_id);
-        sizeof(InterruptRelayQueue) * thread_id);
+    return reinterpret_cast<InterruptRelayQueue*>(ptr.ValueOr(nullptr));
 }
-void WriteHWRegs(u32 base_address, u32 size_in_bytes, const u32* data) {
+static void WriteHWRegs(u32 base_address, u32 size_in_bytes, const u32* data) {
    // TODO: Return proper error codes
    if (base_address + size_in_bytes >= 0x420000) {
-        ERROR_LOG(GPU, "Write address out of range! (address=0x%08x, size=0x%08x)",
+        LOG_ERROR(Service_GSP, "Write address out of range! (address=0x%08x, size=0x%08x)",
                  base_address, size_in_bytes);
        return;
    }
    // size should be word-aligned
    if ((size_in_bytes % 4) != 0) {
-        ERROR_LOG(GPU, "Invalid size 0x%08x", size_in_bytes);
+        LOG_ERROR(Service_GSP, "Invalid size 0x%08x", size_in_bytes);
        return;
    }
@@ -76,8 +71,8 @@ void WriteHWRegs(u32 base_address, u32 size_in_bytes, const u32* data) {
 }
 /// Write a GSP GPU hardware register
-void WriteHWRegs(Service::Interface* self) {
+static void WriteHWRegs(Service::Interface* self) {
-    u32* cmd_buff = Service::GetCommandBuffer();
+    u32* cmd_buff = Kernel::GetCommandBuffer();
    u32 reg_addr = cmd_buff[1];
    u32 size = cmd_buff[2];
@@ -87,20 +82,20 @@ void WriteHWRegs(Service::Interface* self) {
 }
 /// Read a GSP GPU hardware register
-void ReadHWRegs(Service::Interface* self) {
+static void ReadHWRegs(Service::Interface* self) {
-    u32* cmd_buff = Service::GetCommandBuffer();
+    u32* cmd_buff = Kernel::GetCommandBuffer();
    u32 reg_addr = cmd_buff[1];
    u32 size = cmd_buff[2];
    // TODO: Return proper error codes
    if (reg_addr + size >= 0x420000) {
-        ERROR_LOG(GPU, "Read address out of range! (address=0x%08x, size=0x%08x)", reg_addr, size);
+        LOG_ERROR(Service_GSP, "Read address out of range! (address=0x%08x, size=0x%08x)", reg_addr, size);
        return;
    }
    // size should be word-aligned
    if ((size % 4) != 0) {
-        ERROR_LOG(GPU, "Invalid size 0x%08x", size);
+        LOG_ERROR(Service_GSP, "Invalid size 0x%08x", size);
        return;
    }
@@ -115,7 +110,7 @@ void ReadHWRegs(Service::Interface* self) {
    }
 }
-void SetBufferSwap(u32 screen_id, const FrameBufferInfo& info) {
+static void SetBufferSwap(u32 screen_id, const FrameBufferInfo& info) {
    u32 base_address = 0x400000;
    if (info.active_fb == 0) {
        WriteHWRegs(base_address + 4 * GPU_REG_INDEX(framebuffer_config[screen_id].address_left1), 4, &info.address_left);
@@ -140,8 +135,8 @@ void SetBufferSwap(u32 screen_id, const FrameBufferInfo& info) {
 *  Outputs:
 *      1: Result code
 */
-void SetBufferSwap(Service::Interface* self) {
+static void SetBufferSwap(Service::Interface* self) {
-    u32* cmd_buff = Service::GetCommandBuffer();
+    u32* cmd_buff = Kernel::GetCommandBuffer();
    u32 screen_id = cmd_buff[1];
    FrameBufferInfo* fb_info = (FrameBufferInfo*)&cmd_buff[2];
    SetBufferSwap(screen_id, *fb_info);
@@ -159,15 +154,16 @@ void SetBufferSwap(Service::Interface* self) {
 *      2 : Thread index into GSP command buffer
 *      4 : Handle to GSP shared memory
 */
-void RegisterInterruptRelayQueue(Service::Interface* self) {
+static void RegisterInterruptRelayQueue(Service::Interface* self) {
-    u32* cmd_buff = Service::GetCommandBuffer();
+    u32* cmd_buff = Kernel::GetCommandBuffer();
    u32 flags = cmd_buff[1];
    g_interrupt_event = cmd_buff[3];
    g_shared_memory = Kernel::CreateSharedMemory("GSPSharedMem");
    _assert_msg_(GSP, (g_interrupt_event != 0), "handle is not valid!");
-    cmd_buff[2] = g_thread_id++; // ThreadID
+    cmd_buff[1] = 0x2A07; // Value verified by 3dmoo team, purpose unknown, but needed for GSP init
+    cmd_buff[2] = g_thread_id++; // Thread ID
    cmd_buff[4] = g_shared_memory; // GSP shared memory
    Kernel::SignalEvent(g_interrupt_event); // TODO(bunnei): Is this correct?
@@ -177,14 +173,15 @@ void RegisterInterruptRelayQueue(Service::Interface* self) {
 * Signals that the specified interrupt type has occurred to userland code
 * @param interrupt_id ID of interrupt that is being signalled
 * @todo This should probably take a thread_id parameter and only signal this thread?
+ * @todo This probably does not belong in the GSP module, instead move to video_core
 */
 void SignalInterrupt(InterruptId interrupt_id) {
    if (0 == g_interrupt_event) {
-        WARN_LOG(GSP, "cannot synchronize until GSP event has been created!");
+        LOG_WARNING(Service_GSP, "cannot synchronize until GSP event has been created!");
        return;
    }
    if (0 == g_shared_memory) {
-        WARN_LOG(GSP, "cannot synchronize until GSP shared memory has been created!");
+        LOG_WARNING(Service_GSP, "cannot synchronize until GSP shared memory has been created!");
        return;
    }
    for (int thread_id = 0; thread_id < 0x4; ++thread_id) {
@@ -202,7 +199,7 @@ void SignalInterrupt(InterruptId interrupt_id) {
 }
 /// Executes the next GSP command
-void ExecuteCommand(const Command& command, u32 thread_id) {
+static void ExecuteCommand(const Command& command, u32 thread_id) {
    // Utility function to convert register ID to address
    auto WriteGPURegister = [](u32 id, u32 data) {
        GPU::Write<u32>(0x1EF00000 + 4 * id, data);
@@ -215,6 +212,7 @@ void ExecuteCommand(const Command& command, u32 thread_id) {
        memcpy(Memory::GetPointer(command.dma_request.dest_address),
               Memory::GetPointer(command.dma_request.source_address),
               command.dma_request.size);
+        SignalInterrupt(InterruptId::DMA);
        break;
    // ctrulib homebrew sends all relevant command list data with this command,
@@ -223,13 +221,13 @@ void ExecuteCommand(const Command& command, u32 thread_id) {
    case CommandId::SET_COMMAND_LIST_LAST:
    {
        auto& params = command.set_command_list_last;
        WriteGPURegister(GPU_REG_INDEX(command_processor_config.address), Memory::VirtualToPhysicalAddress(params.address) >> 3);
-        WriteGPURegister(GPU_REG_INDEX(command_processor_config.size), params.size >> 3);
+        WriteGPURegister(GPU_REG_INDEX(command_processor_config.size), params.size);
        // TODO: Not sure if we are supposed to always write this .. seems to trigger processing though
        WriteGPURegister(GPU_REG_INDEX(command_processor_config.trigger), 1);
-        SignalInterrupt(InterruptId::P3D);
        break;
    }
@@ -247,6 +245,8 @@ void ExecuteCommand(const Command& command, u32 thread_id) {
        WriteGPURegister(GPU_REG_INDEX(memory_fill_config[1].address_end), Memory::VirtualToPhysicalAddress(params.end2) >> 3);
        WriteGPURegister(GPU_REG_INDEX(memory_fill_config[1].size), params.end2 - params.start2);
        WriteGPURegister(GPU_REG_INDEX(memory_fill_config[1].value), params.value2);
+        SignalInterrupt(InterruptId::PSC0);
        break;
    }
@@ -260,14 +260,9 @@ void ExecuteCommand(const Command& command, u32 thread_id) {
        WriteGPURegister(GPU_REG_INDEX(display_transfer_config.flags), params.flags);
        WriteGPURegister(GPU_REG_INDEX(display_transfer_config.trigger), 1);
-        // TODO(bunnei): Signalling all of these interrupts here is totally wrong, but it seems to
+        // TODO(bunnei): Determine if these interrupts should be signalled here.
-        // work well enough for running demos. Need to figure out how these all work and trigger
-        // them correctly.
-        SignalInterrupt(InterruptId::PSC0);
        SignalInterrupt(InterruptId::PSC1);
        SignalInterrupt(InterruptId::PPF);
-        SignalInterrupt(InterruptId::P3D);
-        SignalInterrupt(InterruptId::DMA);
        // Update framebuffer information if requested
        for (int screen_id = 0; screen_id < 2; ++screen_id) {
@@ -303,12 +298,14 @@ void ExecuteCommand(const Command& command, u32 thread_id) {
    }
    default:
-        ERROR_LOG(GSP, "unknown command 0x%08X", (int)command.id.Value());
+        LOG_ERROR(Service_GSP, "unknown command 0x%08X", (int)command.id.Value());
    }
 }
 /// This triggers handling of the GX command written to the command buffer in shared memory.
-void TriggerCmdReqQueue(Service::Interface* self) {
+static void TriggerCmdReqQueue(Service::Interface* self) {
+    LOG_TRACE(Service_GSP, "called");
    // Iterate through each thread's command queue...
    for (unsigned thread_id = 0; thread_id < 0x4; ++thread_id) {
@@ -325,6 +322,9 @@ void TriggerCmdReqQueue(Service::Interface* self) {
            command_buffer->number_commands = command_buffer->number_commands - 1;
        }
    }
+    u32* cmd_buff = Kernel::GetCommandBuffer();
+    cmd_buff[1] = 0; // No error
 }
 const Interface::FunctionInfo FunctionTable[] = {
diff --git a/src/core/hle/service/hid_user.cpp b/src/core/hle/service/hid_user.cpp
index 0eb32ba4a..eb2d35964 100644
--- a/src/core/hle/service/hid_user.cpp
+++ b/src/core/hle/service/hid_user.cpp
@@ -34,10 +34,7 @@ static s16 next_circle_y = 0;
 * Gets a pointer to the PadData structure inside HID shared memory
 */
 static inline PadData* GetPadData() {
-    if (0 == shared_mem)
+    return reinterpret_cast<PadData*>(Kernel::GetSharedMemoryPointer(shared_mem, 0).ValueOr(nullptr));
-        return nullptr;
-    return reinterpret_cast<PadData*>(Kernel::GetSharedMemoryPointer(shared_mem, 0));
 }
 /**
@@ -47,7 +44,7 @@ static inline PadData* GetPadData() {
 *
 * Indicate the circle pad is pushed completely to the edge in 1 of 8 directions.
 */
-void UpdateNextCirclePadState() {
+static void UpdateNextCirclePadState() {
    static const s16 max_value = 0x9C;
    next_circle_x = next_state.circle_left ? -max_value : 0x0;
    next_circle_x += next_state.circle_right ? max_value : 0x0;
@@ -58,7 +55,7 @@ void UpdateNextCirclePadState() {
 /**
 * Sets a Pad state (button or button combo) as pressed
 */
-void PadButtonPress(PadState pad_state) {
+void PadButtonPress(const PadState& pad_state) {
    next_state.hex |= pad_state.hex;
    UpdateNextCirclePadState();
 }
@@ -66,7 +63,7 @@ void PadButtonPress(PadState pad_state) {
 /**
 * Sets a Pad state (button or button combo) as released
 */
-void PadButtonRelease(PadState pad_state) {
+void PadButtonRelease(const PadState& pad_state) {
    next_state.hex &= ~pad_state.hex;
    UpdateNextCirclePadState();
 }
@@ -155,8 +152,8 @@ void PadUpdateComplete() {
 *      7 : Gyroscope event
 *      8 : Event signaled by HID_User
 */
-void GetIPCHandles(Service::Interface* self) {
+static void GetIPCHandles(Service::Interface* self) {
-    u32* cmd_buff = Service::GetCommandBuffer();
+    u32* cmd_buff = Kernel::GetCommandBuffer();
    cmd_buff[1] = 0; // No error
    cmd_buff[3] = shared_mem;
@@ -166,7 +163,7 @@ void GetIPCHandles(Service::Interface* self) {
    cmd_buff[7] = event_gyroscope;
    cmd_buff[8] = event_debug_pad;
-    DEBUG_LOG(KERNEL, "called");
+    LOG_TRACE(Service_HID, "called");
 }
 const Interface::FunctionInfo FunctionTable[] = {
diff --git a/src/core/hle/service/hid_user.h b/src/core/hle/service/hid_user.h
index 9f6c4d5ed..8f53befdb 100644
--- a/src/core/hle/service/hid_user.h
+++ b/src/core/hle/service/hid_user.h
@@ -15,7 +15,7 @@
 namespace HID_User {
-/** 
+/**
 * Structure of a Pad controller state.
 */
 struct PadState {
@@ -93,8 +93,8 @@ const PadState PAD_CIRCLE_UP    = {{1u << 30}};
 const PadState PAD_CIRCLE_DOWN  = {{1u << 31}};
 // Methods for updating the HID module's state
-void PadButtonPress(PadState pad_state);
+void PadButtonPress(const PadState& pad_state);
-void PadButtonRelease(PadState pad_state);
+void PadButtonRelease(const PadState& pad_state);
 void PadUpdateComplete();
 /**
diff --git a/src/core/hle/service/ir_rst.cpp b/src/core/hle/service/ir_rst.cpp
new file mode 100644
index 000000000..be15db231
--- /dev/null
+++ b/src/core/hle/service/ir_rst.cpp
@@ -0,0 +1,36 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2
+// Refer to the license.txt file included.
+#include "common/log.h"
+#include "core/hle/hle.h"
+#include "core/hle/service/ir_rst.h"
+////////////////////////////////////////////////////////////////////////////////////////////////////
+// Namespace IR_RST
+namespace IR_RST {
+const Interface::FunctionInfo FunctionTable[] = {
+    {0x00010000, nullptr,                 "GetHandles"},
+    {0x00020080, nullptr,                 "Initialize"},
+    {0x00030000, nullptr,                 "Shutdown"},
+    {0x00040000, nullptr,                 "Unknown"},
+    {0x00050000, nullptr,                 "Unknown"},
+    {0x00060000, nullptr,                 "Unknown"},
+    {0x00070080, nullptr,                 "Unknown"},
+    {0x00080000, nullptr,                 "Unknown"},
+    {0x00090000, nullptr,                 "Unknown"},
+};
+////////////////////////////////////////////////////////////////////////////////////////////////////
+// Interface class
+Interface::Interface() {
+    Register(FunctionTable, ARRAY_SIZE(FunctionTable));
+}
+Interface::~Interface() {
+}
+} // namespace
diff --git a/src/core/hle/service/ir_rst.h b/src/core/hle/service/ir_rst.h
new file mode 100644
index 000000000..73effd7e3
--- /dev/null
+++ b/src/core/hle/service/ir_rst.h
@@ -0,0 +1,27 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2
+// Refer to the license.txt file included.
+#pragma once
+#include "core/hle/service/service.h"
+////////////////////////////////////////////////////////////////////////////////////////////////////
+// Namespace IR_RST 
+namespace IR_RST {
+class Interface : public Service::Interface {
+public:
+    Interface();
+    ~Interface();
+    /**
+     * Gets the string port name used by CTROS for the service
+     * @return Port name of service
+     */
+    std::string GetPortName() const override {
+        return "ir:rst";
+    }
+};
+} // namespace
diff --git a/src/core/hle/service/ir_u.cpp b/src/core/hle/service/ir_u.cpp
new file mode 100644
index 000000000..aa9db6f6d
--- /dev/null
+++ b/src/core/hle/service/ir_u.cpp
@@ -0,0 +1,45 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2
+// Refer to the license.txt file included.
+#include "common/log.h"
+#include "core/hle/hle.h"
+#include "core/hle/service/ir_u.h"
+////////////////////////////////////////////////////////////////////////////////////////////////////
+// Namespace IR_U
+namespace IR_U {
+const Interface::FunctionInfo FunctionTable[] = {
+    {0x00010000, nullptr,                 "Initialize"},
+    {0x00020000, nullptr,                 "Shutdown"},
+    {0x00030042, nullptr,                 "StartSendTransfer"},
+    {0x00040000, nullptr,                 "WaitSendTransfer"},
+    {0x000500C2, nullptr,                 "StartRecvTransfer"},
+    {0x00060000, nullptr,                 "WaitRecvTransfer"},
+    {0x00070080, nullptr,                 "GetRecvTransferCount"},
+    {0x00080000, nullptr,                 "GetSendState"},
+    {0x00090040, nullptr,                 "SetBitRate"},
+    {0x000A0000, nullptr,                 "GetBitRate"},
+    {0x000B0040, nullptr,                 "SetIRLEDState"},
+    {0x000C0000, nullptr,                 "GetIRLEDRecvState"},
+    {0x000D0000, nullptr,                 "GetSendFinishedEvent"},
+    {0x000E0000, nullptr,                 "GetRecvFinishedEvent"},
+    {0x000F0000, nullptr,                 "GetTransferState"},
+    {0x00100000, nullptr,                 "GetErrorStatus"},
+    {0x00110040, nullptr,                 "SetSleepModeActive"},
+    {0x00120040, nullptr,                 "SetSleepModeState"},
+};
+////////////////////////////////////////////////////////////////////////////////////////////////////
+// Interface class
+Interface::Interface() {
+    Register(FunctionTable, ARRAY_SIZE(FunctionTable));
+}
+Interface::~Interface() {
+}
+} // namespace
diff --git a/src/core/hle/service/ir_u.h b/src/core/hle/service/ir_u.h
new file mode 100644
index 000000000..86d98d079
--- /dev/null
+++ b/src/core/hle/service/ir_u.h
@@ -0,0 +1,27 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2
+// Refer to the license.txt file included.
+#pragma once
+#include "core/hle/service/service.h"
+////////////////////////////////////////////////////////////////////////////////////////////////////
+// Namespace IR_U
+namespace IR_U {
+class Interface : public Service::Interface {
+public:
+    Interface();
+    ~Interface();
+    /**
+     * Gets the string port name used by CTROS for the service
+     * @return Port name of service
+     */
+    std::string GetPortName() const override {
+        return "ir:u";
+    }
+};
+} // namespace
diff --git a/src/core/hle/service/ldr_ro.cpp b/src/core/hle/service/ldr_ro.cpp
new file mode 100644
index 000000000..91b1a6fc5
--- /dev/null
+++ b/src/core/hle/service/ldr_ro.cpp
@@ -0,0 +1,28 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2+
+// Refer to the license.txt file included.
+#include "common/log.h"
+#include "core/hle/hle.h"
+#include "core/hle/service/ldr_ro.h"
+////////////////////////////////////////////////////////////////////////////////////////////////////
+// Namespace LDR_RO
+namespace LDR_RO {
+const Interface::FunctionInfo FunctionTable[] = {
+    {0x000100C2, nullptr,               "Initialize"},
+    {0x00020082, nullptr,               "CRR_Load"},
+    {0x00030042, nullptr,               "CRR_Unload"},
+    {0x000402C2, nullptr,               "CRO_LoadAndFix"},
+    {0x000500C2, nullptr,               "CRO_ApplyRelocationPatchesAndLink"}
+};
+////////////////////////////////////////////////////////////////////////////////////////////////////
+// Interface class
+Interface::Interface() {
+    Register(FunctionTable, ARRAY_SIZE(FunctionTable));
+}
+} // namespace
diff --git a/src/core/hle/service/ldr_ro.h b/src/core/hle/service/ldr_ro.h
new file mode 100644
index 000000000..32d7c29cf
--- /dev/null
+++ b/src/core/hle/service/ldr_ro.h
@@ -0,0 +1,27 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2+
+// Refer to the license.txt file included.
+#pragma once
+#include "core/hle/service/service.h"
+////////////////////////////////////////////////////////////////////////////////////////////////////
+// Namespace LDR_RO
+namespace LDR_RO {
+class Interface : public Service::Interface {
+public:
+    Interface();
+    /**
+     * Gets the string port name used by CTROS for the service
+     * @return Port name of service
+     */
+    std::string GetPortName() const override {
+        return "ldr:ro";
+    }
+};
+} // namespace
diff --git a/src/core/hle/service/mic_u.cpp b/src/core/hle/service/mic_u.cpp
index 58051f133..d6f30e9ae 100644
--- a/src/core/hle/service/mic_u.cpp
+++ b/src/core/hle/service/mic_u.cpp
@@ -27,7 +27,7 @@ const Interface::FunctionInfo FunctionTable[] = {
    {0x000D0040, nullptr,               "SetClamp"},
    {0x000E0000, nullptr,               "GetClamp"},
    {0x000F0040, nullptr,               "unknown_input1"},
-    {0x00100040, nullptr,               "unknown_input2"},      
+    {0x00100040, nullptr,               "unknown_input2"},
 };
 ////////////////////////////////////////////////////////////////////////////////////////////////////
diff --git a/src/core/hle/service/mic_u.h b/src/core/hle/service/mic_u.h
index 72ba048ef..2a495f3a9 100644
--- a/src/core/hle/service/mic_u.h
+++ b/src/core/hle/service/mic_u.h
@@ -21,7 +21,7 @@ public:
     * Gets the string port name used by CTROS for the service
     * @return Port name of service
     */
-    std::string GetPortName() const {
+    std::string GetPortName() const override {
        return "mic:u";
    }
 };
diff --git a/src/core/hle/service/nim_aoc.cpp b/src/core/hle/service/nim_aoc.cpp
new file mode 100644
index 000000000..04c1e0cf3
--- /dev/null
+++ b/src/core/hle/service/nim_aoc.cpp
@@ -0,0 +1,31 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2+
+// Refer to the license.txt file included.
+#include "common/log.h"
+#include "core/hle/hle.h"
+#include "core/hle/service/nim_aoc.h"
+////////////////////////////////////////////////////////////////////////////////////////////////////
+// Namespace NIM_AOC
+namespace NIM_AOC {
+const Interface::FunctionInfo FunctionTable[] = {
+    {0x00030042, nullptr,               "SetApplicationId"},
+    {0x00040042, nullptr,               "SetTin"},
+    {0x000902D0, nullptr,               "ListContentSetsEx"},
+    {0x00180000, nullptr,               "GetBalance"},
+    {0x001D0000, nullptr,               "GetCustomerSupportCode"},
+    {0x00210000, nullptr,               "Initialize"},
+    {0x00240282, nullptr,               "CalculateContentsRequiredSize"},
+    {0x00250000, nullptr,               "RefreshServerTime"},
+};
+////////////////////////////////////////////////////////////////////////////////////////////////////
+// Interface class
+Interface::Interface() {
+    Register(FunctionTable, ARRAY_SIZE(FunctionTable));
+}
+} // namespace
diff --git a/src/core/hle/service/nim_aoc.h b/src/core/hle/service/nim_aoc.h
new file mode 100644
index 000000000..2cc673118
--- /dev/null
+++ b/src/core/hle/service/nim_aoc.h
@@ -0,0 +1,27 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2+
+// Refer to the license.txt file included.
+#pragma once
+#include "core/hle/service/service.h"
+////////////////////////////////////////////////////////////////////////////////////////////////////
+// Namespace NIM_AOC
+namespace NIM_AOC {
+class Interface : public Service::Interface {
+public:
+    Interface();
+    /**
+     * Gets the string port name used by CTROS for the service
+     * @return Port name of service
+     */
+    std::string GetPortName() const override {
+        return "nim:aoc";
+    }
+};
+} // namespace
diff --git a/src/core/hle/service/nwm_uds.h b/src/core/hle/service/nwm_uds.h
index a956ca812..69d2c2002 100644
--- a/src/core/hle/service/nwm_uds.h
+++ b/src/core/hle/service/nwm_uds.h
@@ -21,7 +21,7 @@ public:
     * Gets the string port name used by CTROS for the service
     * @return Port name of service
     */
-    std::string GetPortName() const {
+    std::string GetPortName() const override {
        return "nwm:UDS";
    }
 };
diff --git a/src/core/hle/service/pm_app.cpp b/src/core/hle/service/pm_app.cpp
new file mode 100644
index 000000000..90e9b1bfa
--- /dev/null
+++ b/src/core/hle/service/pm_app.cpp
@@ -0,0 +1,35 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2
+// Refer to the license.txt file included.
+#include "common/log.h"
+#include "core/hle/hle.h"
+#include "core/hle/service/pm_app.h"
+////////////////////////////////////////////////////////////////////////////////////////////////////
+// Namespace PM_APP
+namespace PM_APP {
+const Interface::FunctionInfo FunctionTable[] = {
+    {0x00010140, nullptr,                 "LaunchTitle"},
+    {0x00020082, nullptr,                 "LaunchFIRMSetParams"},
+    {0x00030080, nullptr,                 "TerminateProcesse"},
+    {0x00040100, nullptr,                 "TerminateProcessTID"},
+    {0x000500C0, nullptr,                 "TerminateProcessTID_unknown"},
+    {0x00070042, nullptr,                 "GetFIRMLaunchParams"},
+    {0x00080100, nullptr,                 "GetTitleExheaderFlags"},
+    {0x00090042, nullptr,                 "SetFIRMLaunchParams"},
+};
+////////////////////////////////////////////////////////////////////////////////////////////////////
+// Interface class
+Interface::Interface() {
+    Register(FunctionTable, ARRAY_SIZE(FunctionTable));
+}
+Interface::~Interface() {
+}
+} // namespace
diff --git a/src/core/hle/service/pm_app.h b/src/core/hle/service/pm_app.h
new file mode 100644
index 000000000..28c38f582
--- /dev/null
+++ b/src/core/hle/service/pm_app.h
@@ -0,0 +1,27 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2
+// Refer to the license.txt file included.
+#pragma once
+#include "core/hle/service/service.h"
+////////////////////////////////////////////////////////////////////////////////////////////////////
+// Namespace PM_APP
+namespace PM_APP {
+class Interface : public Service::Interface {
+public:
+    Interface();
+    ~Interface();
+    /**
+     * Gets the string port name used by CTROS for the service
+     * @return Port name of service
+     */
+    std::string GetPortName() const override {
+        return "pm:app";
+    }
+};
+} // namespace
diff --git a/src/core/hle/service/ptm_u.cpp b/src/core/hle/service/ptm_u.cpp
index f6a14d509..b8c0f6da8 100644
--- a/src/core/hle/service/ptm_u.cpp
+++ b/src/core/hle/service/ptm_u.cpp
@@ -11,19 +11,105 @@
 namespace PTM_U {
+/// Charge levels used by PTM functions
+enum class ChargeLevels : u32 {
+    CriticalBattery    = 1,
+    LowBattery         = 2,
+    HalfFull           = 3,
+    MostlyFull         = 4,
+    CompletelyFull     = 5,
+};
+static bool shell_open = true;
+static bool battery_is_charging = true;
+/**
+ * It is unknown if GetAdapterState is the same as GetBatteryChargeState,
+ * it is likely to just be a duplicate function of GetBatteryChargeState
+ * that controls another part of the HW.
+ * PTM_U::GetAdapterState service function
+ *  Outputs:
+ *      1 : Result of function, 0 on success, otherwise error code
+ *      2 : Output of function, 0 = not charging, 1 = charging.
+ */
+static void GetAdapterState(Service::Interface* self) {
+    u32* cmd_buff = Kernel::GetCommandBuffer();
+    // TODO(purpasmart96): This function is only a stub,
+    // it returns a valid result without implementing full functionality.
+    cmd_buff[1] = 0; // No error
+    cmd_buff[2] = battery_is_charging ? 1 : 0;
+    LOG_WARNING(Service_PTM, "(STUBBED) called");
+}
+/*
+ * PTM_User::GetShellState service function.
+ *  Outputs:
+ *      1 : Result of function, 0 on success, otherwise error code
+ *      2 : Whether the 3DS's physical shell casing is open (1) or closed (0)
+ */
+static void GetShellState(Service::Interface* self) {
+    u32* cmd_buff = Kernel::GetCommandBuffer();
+    cmd_buff[1] = 0;
+    cmd_buff[2] = shell_open ? 1 : 0;
+    LOG_TRACE(Service_PTM, "PTM_U::GetShellState called");
+}
+/**
+ * PTM_U::GetBatteryLevel service function
+ *  Outputs:
+ *      1 : Result of function, 0 on success, otherwise error code
+ *      2 : Battery level, 5 = completely full battery, 4 = mostly full battery,
+ *          3 = half full battery, 2 =  low battery, 1 = critical battery.
+ */
+static void GetBatteryLevel(Service::Interface* self) {
+    u32* cmd_buff = Kernel::GetCommandBuffer();
+    // TODO(purpasmart96): This function is only a stub,
+    // it returns a valid result without implementing full functionality.
+    cmd_buff[1] = 0; // No error
+    cmd_buff[2] = static_cast<u32>(ChargeLevels::CompletelyFull); // Set to a completely full battery
+    LOG_WARNING(Service_PTM, "(STUBBED) called");
+}
+/**
+ * PTM_U::GetBatteryChargeState service function
+ *  Outputs:
+ *      1 : Result of function, 0 on success, otherwise error code
+ *      2 : Output of function, 0 = not charging, 1 = charging.
+ */
+static void GetBatteryChargeState(Service::Interface* self) {
+    u32* cmd_buff = Kernel::GetCommandBuffer();
+    // TODO(purpasmart96): This function is only a stub,
+    // it returns a valid result without implementing full functionality.
+    cmd_buff[1] = 0; // No error
+    cmd_buff[2] = battery_is_charging ? 1 : 0;
+    LOG_WARNING(Service_PTM, "(STUBBED) called");
+}
 const Interface::FunctionInfo FunctionTable[] = {
    {0x00010002, nullptr,               "RegisterAlarmClient"},
    {0x00020080, nullptr,               "SetRtcAlarm"},
    {0x00030000, nullptr,               "GetRtcAlarm"},
    {0x00040000, nullptr,               "CancelRtcAlarm"},
-    {0x00050000, nullptr,               "GetAdapterState"},
+    {0x00050000, GetAdapterState,       "GetAdapterState"},
-    {0x00060000, nullptr,               "GetShellState "},
+    {0x00060000, GetShellState,         "GetShellState"},
-    {0x00070000, nullptr,               "GetBatteryLevel"},
+    {0x00070000, GetBatteryLevel,       "GetBatteryLevel"},
-    {0x00080000, nullptr,               "GetBatteryChargeState"},
+    {0x00080000, GetBatteryChargeState, "GetBatteryChargeState"},
    {0x00090000, nullptr,               "GetPedometerState"},
    {0x000A0042, nullptr,               "GetStepHistoryEntry"},
-    {0x000B00C2, nullptr,               "GetStepHistory "},
+    {0x000B00C2, nullptr,               "GetStepHistory"},
-    {0x000C0000, nullptr,               "GetTotalStepCount "},
+    {0x000C0000, nullptr,               "GetTotalStepCount"},
    {0x000D0040, nullptr,               "SetPedometerRecordingMode"},
    {0x000E0000, nullptr,               "GetPedometerRecordingMode"},
    {0x000F0084, nullptr,               "GetStepHistoryAll"},
diff --git a/src/core/hle/service/ptm_u.h b/src/core/hle/service/ptm_u.h
index 82749fa39..f8d9f57be 100644
--- a/src/core/hle/service/ptm_u.h
+++ b/src/core/hle/service/ptm_u.h
@@ -21,7 +21,7 @@ public:
     * Gets the string port name used by CTROS for the service
     * @return Port name of service
     */
-    std::string GetPortName() const {
+    std::string GetPortName() const override {
        return "ptm:u";
    }
 };
diff --git a/src/core/hle/service/service.cpp b/src/core/hle/service/service.cpp
index b144a77d4..2230045e3 100644
--- a/src/core/hle/service/service.cpp
+++ b/src/core/hle/service/service.cpp
@@ -7,16 +7,28 @@
 #include "core/hle/service/service.h"
 #include "core/hle/service/ac_u.h"
+#include "core/hle/service/am_app.h"
+#include "core/hle/service/am_net.h"
 #include "core/hle/service/apt_u.h"
+#include "core/hle/service/boss_u.h"
+#include "core/hle/service/cecd_u.h"
+#include "core/hle/service/cfg_i.h"
 #include "core/hle/service/cfg_u.h"
+#include "core/hle/service/csnd_snd.h"
 #include "core/hle/service/dsp_dsp.h"
 #include "core/hle/service/err_f.h"
-#include "core/hle/service/fs_user.h"
+#include "core/hle/service/fs/fs_user.h"
+#include "core/hle/service/frd_u.h"
 #include "core/hle/service/gsp_gpu.h"
 #include "core/hle/service/hid_user.h"
+#include "core/hle/service/ir_rst.h"
+#include "core/hle/service/ir_u.h"
+#include "core/hle/service/ldr_ro.h"
 #include "core/hle/service/mic_u.h"
+#include "core/hle/service/nim_aoc.h"
 #include "core/hle/service/ndm_u.h"
 #include "core/hle/service/nwm_uds.h"
+#include "core/hle/service/pm_app.h"
 #include "core/hle/service/ptm_u.h"
 #include "core/hle/service/soc_u.h"
 #include "core/hle/service/srv.h"
@@ -54,7 +66,7 @@ void Manager::DeleteService(const std::string& port_name) {
 /// Get a Service Interface from its Handle
 Interface* Manager::FetchFromHandle(Handle handle) {
-    return Kernel::g_object_pool.GetFast<Interface>(handle);
+    return Kernel::g_object_pool.Get<Interface>(handle);
 }
 /// Get a Service Interface from its port
@@ -73,30 +85,42 @@ Interface* Manager::FetchFromPortName(const std::string& port_name) {
 /// Initialize ServiceManager
 void Init() {
    g_manager = new Manager;
-    
    g_manager->AddService(new SRV::Interface);
    g_manager->AddService(new AC_U::Interface);
+    g_manager->AddService(new AM_APP::Interface);
+    g_manager->AddService(new AM_NET::Interface);
    g_manager->AddService(new APT_U::Interface);
+    g_manager->AddService(new BOSS_U::Interface);
+    g_manager->AddService(new CECD_U::Interface);
+    g_manager->AddService(new CFG_I::Interface);
    g_manager->AddService(new CFG_U::Interface);
+    g_manager->AddService(new CSND_SND::Interface);
    g_manager->AddService(new DSP_DSP::Interface);
    g_manager->AddService(new ERR_F::Interface);
-    g_manager->AddService(new FS_User::Interface);
+    g_manager->AddService(new FRD_U::Interface);
+    g_manager->AddService(new FS::FSUserInterface);
    g_manager->AddService(new GSP_GPU::Interface);
    g_manager->AddService(new HID_User::Interface);
+    g_manager->AddService(new IR_RST::Interface);
+    g_manager->AddService(new IR_U::Interface);
+    g_manager->AddService(new LDR_RO::Interface);
    g_manager->AddService(new MIC_U::Interface);
+    g_manager->AddService(new NIM_AOC::Interface);
    g_manager->AddService(new NDM_U::Interface);
    g_manager->AddService(new NWM_UDS::Interface);
+    g_manager->AddService(new PM_APP::Interface);
    g_manager->AddService(new PTM_U::Interface);
    g_manager->AddService(new SOC_U::Interface);
    g_manager->AddService(new SSL_C::Interface);
-    NOTICE_LOG(HLE, "initialized OK");
+    LOG_DEBUG(Service, "initialized OK");
 }
 /// Shutdown ServiceManager
 void Shutdown() {
    delete g_manager;
-    NOTICE_LOG(HLE, "shutdown OK");
+    LOG_DEBUG(Service, "shutdown OK");
 }
diff --git a/src/core/hle/service/service.h b/src/core/hle/service/service.h
index 2f5a866c9..9cd906150 100644
--- a/src/core/hle/service/service.h
+++ b/src/core/hle/service/service.h
@@ -10,9 +10,11 @@
 #include <string>
 #include "common/common.h"
+#include "common/string_util.h"
 #include "core/mem_map.h"
 #include "core/hle/kernel/kernel.h"
+#include "core/hle/kernel/session.h"
 #include "core/hle/svc.h"
 ////////////////////////////////////////////////////////////////////////////////////////////////////
@@ -20,30 +22,19 @@
 namespace Service {
-static const int kMaxPortSize           = 0x08; ///< Maximum size of a port name (8 characters)
+static const int kMaxPortSize = 8; ///< Maximum size of a port name (8 characters)
-static const int kCommandHeaderOffset   = 0x80; ///< Offset into command buffer of header
-/**
- * Returns a pointer to the command buffer in kernel memory
- * @param offset Optional offset into command buffer
- * @return Pointer to command buffer
- */
-inline static u32* GetCommandBuffer(const int offset=0) {
-    return (u32*)Memory::GetPointer(Memory::KERNEL_MEMORY_VADDR + kCommandHeaderOffset + offset);
-}
 class Manager;
 /// Interface to a CTROS service
-class Interface  : public Kernel::Object {
+class Interface  : public Kernel::Session {
+    // TODO(yuriks): An "Interface" being a Kernel::Object is mostly non-sense. Interface should be
+    // just something that encapsulates a session and acts as a helper to implement service
+    // processes.
    friend class Manager;
 public:
-    
    std::string GetName() const override { return GetPortName(); }
-    std::string GetTypeName() const override { return GetPortName(); }
-    static Kernel::HandleType GetStaticHandleType() { return Kernel::HandleType::Service; }
-    Kernel::HandleType GetHandleType() const override { return Kernel::HandleType::Service; }
    typedef void (*Function)(Interface*);
@@ -75,48 +66,31 @@ public:
        m_handles.erase(std::remove(m_handles.begin(), m_handles.end(), handle), m_handles.end());
    }
-    /**
+    ResultVal<bool> SyncRequest() override {
-     * Synchronize kernel object 
+        u32* cmd_buff = Kernel::GetCommandBuffer();
-     * @param wait Boolean wait set if current thread should wait as a result of sync operation
-     * @return Result of operation, 0 on success, otherwise error code
-     */
-    Result SyncRequest(bool* wait) override {
-        u32* cmd_buff = GetCommandBuffer();
        auto itr = m_functions.find(cmd_buff[0]);
-        if (itr == m_functions.end()) {
+        if (itr == m_functions.end() || itr->second.func == nullptr) {
-            ERROR_LOG(OSHLE, "unknown/unimplemented function: port=%s, command=0x%08X", 
+            // Number of params == bits 0-5 + bits 6-11
-                GetPortName().c_str(), cmd_buff[0]);
+            int num_params = (cmd_buff[0] & 0x3F) + ((cmd_buff[0] >> 6) & 0x3F);
-            // TODO(bunnei): Hack - ignore error
+            std::string error = "unknown/unimplemented function '%s': port=%s";
-            u32* cmd_buff = Service::GetCommandBuffer();
+            for (int i = 1; i <= num_params; ++i) {
-            cmd_buff[1] = 0;
+                error += Common::StringFromFormat(", cmd_buff[%i]=%u", i, cmd_buff[i]);
-            return 0; 
+            }
-        }
-        if (itr->second.func == nullptr) {
+            std::string name = (itr == m_functions.end()) ? Common::StringFromFormat("0x%08X", cmd_buff[0]) : itr->second.name;
-            ERROR_LOG(OSHLE, "unimplemented function: port=%s, name=%s", 
-                GetPortName().c_str(), itr->second.name.c_str());
+            LOG_ERROR(Service, error.c_str(), name.c_str(), GetPortName().c_str());
            // TODO(bunnei): Hack - ignore error
-            u32* cmd_buff = Service::GetCommandBuffer();
            cmd_buff[1] = 0;
-            return 0; 
+            return MakeResult<bool>(false);
-        } 
+        }
        itr->second.func(this);
-        return 0; // TODO: Implement return from actual function
+        return MakeResult<bool>(false); // TODO: Implement return from actual function
-    }
-    /**
-     * Wait for kernel object to synchronize
-     * @param wait Boolean wait set if current thread should wait as a result of sync operation
-     * @return Result of operation, 0 on success, otherwise error code
-     */
-    Result WaitSynchronization(bool* wait) override {
-        // TODO(bunnei): ImplementMe
-        ERROR_LOG(OSHLE, "unimplemented function");
-        return 0;
    }
 protected:
diff --git a/src/core/hle/service/soc_u.h b/src/core/hle/service/soc_u.h
index e27a2b1fe..d5590a683 100644
--- a/src/core/hle/service/soc_u.h
+++ b/src/core/hle/service/soc_u.h
@@ -19,7 +19,7 @@ public:
     * Gets the string port name used by CTROS for the service
     * @return Port name of service
     */
-    std::string GetPortName() const {
+    std::string GetPortName() const override {
        return "soc:U";
    }
 };
diff --git a/src/core/hle/service/srv.cpp b/src/core/hle/service/srv.cpp
index 6c02a43d9..165fd7aac 100644
--- a/src/core/hle/service/srv.cpp
+++ b/src/core/hle/service/srv.cpp
@@ -11,20 +11,20 @@
 namespace SRV {
-Handle g_event_handle = 0;
+static Handle g_event_handle = 0;
-void Initialize(Service::Interface* self) {
+static void Initialize(Service::Interface* self) {
-    DEBUG_LOG(OSHLE, "called");
+    LOG_DEBUG(Service_SRV, "called");
-    u32* cmd_buff = Service::GetCommandBuffer();
+    u32* cmd_buff = Kernel::GetCommandBuffer();
    cmd_buff[1] = 0; // No error
 }
-void GetProcSemaphore(Service::Interface* self) {
+static void GetProcSemaphore(Service::Interface* self) {
-    DEBUG_LOG(OSHLE, "called");
+    LOG_TRACE(Service_SRV, "called");
-    u32* cmd_buff = Service::GetCommandBuffer();
+    u32* cmd_buff = Kernel::GetCommandBuffer();
    // TODO(bunnei): Change to a semaphore once these have been implemented
    g_event_handle = Kernel::CreateEvent(RESETTYPE_ONESHOT, "SRV:Event");
@@ -34,21 +34,21 @@ void GetProcSemaphore(Service::Interface* self) {
    cmd_buff[3] = g_event_handle;
 }
-void GetServiceHandle(Service::Interface* self) {
+static void GetServiceHandle(Service::Interface* self) {
-    Result res = 0;
+    ResultCode res = RESULT_SUCCESS;
-    u32* cmd_buff = Service::GetCommandBuffer();
+    u32* cmd_buff = Kernel::GetCommandBuffer();
    std::string port_name = std::string((const char*)&cmd_buff[1], 0, Service::kMaxPortSize);
    Service::Interface* service = Service::g_manager->FetchFromPortName(port_name);
    if (nullptr != service) {
        cmd_buff[3] = service->GetHandle();
-        DEBUG_LOG(OSHLE, "called port=%s, handle=0x%08X", port_name.c_str(), cmd_buff[3]);
+        LOG_TRACE(Service_SRV, "called port=%s, handle=0x%08X", port_name.c_str(), cmd_buff[3]);
    } else {
-        ERROR_LOG(OSHLE, "(UNIMPLEMENTED) called port=%s", port_name.c_str());
+        LOG_ERROR(Service_SRV, "(UNIMPLEMENTED) called port=%s", port_name.c_str());
-        res = -1;
+        res = UnimplementedFunction(ErrorModule::SRV);
    }
-    cmd_buff[1] = res;
+    cmd_buff[1] = res.raw;
 }
 const Interface::FunctionInfo FunctionTable[] = {
diff --git a/src/core/hle/svc.cpp b/src/core/hle/svc.cpp
index 2aa1303f6..47e9bf77e 100644
--- a/src/core/hle/svc.cpp
+++ b/src/core/hle/svc.cpp
@@ -1,6 +1,6 @@
 // Copyright 2014 Citra Emulator Project
 // Licensed under GPLv2
-// Refer to the license.txt file included.  
+// Refer to the license.txt file included.
 #include <map>
@@ -12,10 +12,12 @@
 #include "core/hle/kernel/address_arbiter.h"
 #include "core/hle/kernel/event.h"
 #include "core/hle/kernel/mutex.h"
+#include "core/hle/kernel/semaphore.h"
 #include "core/hle/kernel/shared_memory.h"
 #include "core/hle/kernel/thread.h"
 #include "core/hle/function_wrappers.h"
+#include "core/hle/result.h"
 #include "core/hle/service/service.h"
 ////////////////////////////////////////////////////////////////////////////////////////////////////
@@ -29,8 +31,8 @@ enum ControlMemoryOperation {
 };
 /// Map application or GSP heap memory
-Result ControlMemory(u32* out_addr, u32 operation, u32 addr0, u32 addr1, u32 size, u32 permissions) {
+static Result ControlMemory(u32* out_addr, u32 operation, u32 addr0, u32 addr1, u32 size, u32 permissions) {
-    DEBUG_LOG(SVC,"called operation=0x%08X, addr0=0x%08X, addr1=0x%08X, size=%08X, permissions=0x%08X", 
+    LOG_TRACE(Kernel_SVC,"called operation=0x%08X, addr0=0x%08X, addr1=0x%08X, size=%08X, permissions=0x%08X",
        operation, addr0, addr1, size, permissions);
    switch (operation) {
@@ -42,19 +44,19 @@ Result ControlMemory(u32* out_addr, u32 operation, u32 addr0, u32 addr1, u32 siz
    // Map GSP heap memory
    case MEMORY_OPERATION_GSP_HEAP:
-        *out_addr = Memory::MapBlock_HeapGSP(size, operation, permissions);
+        *out_addr = Memory::MapBlock_HeapLinear(size, operation, permissions);
        break;
    // Unknown ControlMemory operation
    default:
-        ERROR_LOG(SVC, "unknown operation=0x%08X", operation);
+        LOG_ERROR(Kernel_SVC, "unknown operation=0x%08X", operation);
    }
    return 0;
 }
 /// Maps a memory block to specified address
-Result MapMemoryBlock(Handle handle, u32 addr, u32 permissions, u32 other_permissions) {
+static Result MapMemoryBlock(Handle handle, u32 addr, u32 permissions, u32 other_permissions) {
-    DEBUG_LOG(SVC, "called memblock=0x%08X, addr=0x%08X, mypermissions=0x%08X, otherpermission=%d", 
+    LOG_TRACE(Kernel_SVC, "called memblock=0x%08X, addr=0x%08X, mypermissions=0x%08X, otherpermission=%d",
        handle, addr, permissions, other_permissions);
    Kernel::MemoryPermission permissions_type = static_cast<Kernel::MemoryPermission>(permissions);
@@ -67,20 +69,20 @@ Result MapMemoryBlock(Handle handle, u32 addr, u32 permissions, u32 other_permis
    case Kernel::MemoryPermission::WriteExecute:
    case Kernel::MemoryPermission::ReadWriteExecute:
    case Kernel::MemoryPermission::DontCare:
-        Kernel::MapSharedMemory(handle, addr, permissions_type, 
+        Kernel::MapSharedMemory(handle, addr, permissions_type,
            static_cast<Kernel::MemoryPermission>(other_permissions));
        break;
    default:
-        ERROR_LOG(OSHLE, "unknown permissions=0x%08X", permissions);
+        LOG_ERROR(Kernel_SVC, "unknown permissions=0x%08X", permissions);
    }
    return 0;
 }
 /// Connect to an OS service given the port name, returns the handle to the port to out
-Result ConnectToPort(Handle* out, const char* port_name) {
+static Result ConnectToPort(Handle* out, const char* port_name) {
    Service::Interface* service = Service::g_manager->FetchFromPortName(port_name);
-    DEBUG_LOG(SVC, "called port_name=%s", port_name);
+    LOG_TRACE(Kernel_SVC, "called port_name=%s", port_name);
    _assert_msg_(KERNEL, (service != nullptr), "called, but service is not implemented!");
    *out = service->GetHandle();
@@ -89,78 +91,80 @@ Result ConnectToPort(Handle* out, const char* port_name) {
 }
 /// Synchronize to an OS service
-Result SendSyncRequest(Handle handle) {
+static Result SendSyncRequest(Handle handle) {
-    Kernel::Object* object = Kernel::g_object_pool.GetFast<Kernel::Object>(handle);
+    Kernel::Session* session = Kernel::g_object_pool.Get<Kernel::Session>(handle);
+    if (session == nullptr) {
+        return InvalidHandle(ErrorModule::Kernel).raw;
+    }
-    _assert_msg_(KERNEL, (object != nullptr), "called, but kernel object is nullptr!");
+    LOG_TRACE(Kernel_SVC, "called handle=0x%08X(%s)", handle, session->GetName().c_str());
-    DEBUG_LOG(SVC, "called handle=0x%08X(%s)", handle, object->GetTypeName().c_str());
-    bool wait = false;
+    ResultVal<bool> wait = session->SyncRequest();
-    Result res = object->SyncRequest(&wait);
+    if (wait.Succeeded() && *wait) {
-    if (wait) {
        Kernel::WaitCurrentThread(WAITTYPE_SYNCH); // TODO(bunnei): Is this correct?
    }
-    return res;
+    return wait.Code().raw;
 }
 /// Close a handle
-Result CloseHandle(Handle handle) {
+static Result CloseHandle(Handle handle) {
    // ImplementMe
-    ERROR_LOG(SVC, "(UNIMPLEMENTED) called handle=0x%08X", handle);
+    LOG_ERROR(Kernel_SVC, "(UNIMPLEMENTED) called handle=0x%08X", handle);
    return 0;
 }
 /// Wait for a handle to synchronize, timeout after the specified nanoseconds
-Result WaitSynchronization1(Handle handle, s64 nano_seconds) {
+static Result WaitSynchronization1(Handle handle, s64 nano_seconds) {
    // TODO(bunnei): Do something with nano_seconds, currently ignoring this
-    bool wait = false;
    bool wait_infinite = (nano_seconds == -1); // Used to wait until a thread has terminated
+    if (!Kernel::g_object_pool.IsValid(handle)) {
+        return InvalidHandle(ErrorModule::Kernel).raw;
+    }
    Kernel::Object* object = Kernel::g_object_pool.GetFast<Kernel::Object>(handle);
+    _dbg_assert_(Kernel, object != nullptr);
-    DEBUG_LOG(SVC, "called handle=0x%08X(%s:%s), nanoseconds=%lld", handle, object->GetTypeName().c_str(), 
+    LOG_TRACE(Kernel_SVC, "called handle=0x%08X(%s:%s), nanoseconds=%lld", handle, object->GetTypeName().c_str(),
            object->GetName().c_str(), nano_seconds);
-    _assert_msg_(KERNEL, (object != nullptr), "called, but kernel object is nullptr!");
+    ResultVal<bool> wait = object->WaitSynchronization();
-    Result res = object->WaitSynchronization(&wait);
    // Check for next thread to schedule
-    if (wait) {
+    if (wait.Succeeded() && *wait) {
        HLE::Reschedule(__func__);
-        return 0;
    }
-    return res;
+    return wait.Code().raw;
 }
 /// Wait for the given handles to synchronize, timeout after the specified nanoseconds
-Result WaitSynchronizationN(s32* out, Handle* handles, s32 handle_count, bool wait_all, 
+static Result WaitSynchronizationN(s32* out, Handle* handles, s32 handle_count, bool wait_all,
    s64 nano_seconds) {
    // TODO(bunnei): Do something with nano_seconds, currently ignoring this
    bool unlock_all = true;
    bool wait_infinite = (nano_seconds == -1); // Used to wait until a thread has terminated
-    DEBUG_LOG(SVC, "called handle_count=%d, wait_all=%s, nanoseconds=%lld", 
+    LOG_TRACE(Kernel_SVC, "called handle_count=%d, wait_all=%s, nanoseconds=%lld",
        handle_count, (wait_all ? "true" : "false"), nano_seconds);
    // Iterate through each handle, synchronize kernel object
    for (s32 i = 0; i < handle_count; i++) {
-        bool wait = false;
+        if (!Kernel::g_object_pool.IsValid(handles[i])) {
+            return InvalidHandle(ErrorModule::Kernel).raw;
+        }
        Kernel::Object* object = Kernel::g_object_pool.GetFast<Kernel::Object>(handles[i]);
-        _assert_msg_(KERNEL, (object != nullptr), "called handle=0x%08X, but kernel object "
+        LOG_TRACE(Kernel_SVC, "\thandle[%d] = 0x%08X(%s:%s)", i, handles[i], object->GetTypeName().c_str(),
-            "is nullptr!", handles[i]);
-        DEBUG_LOG(SVC, "\thandle[%d] = 0x%08X(%s:%s)", i, handles[i], object->GetTypeName().c_str(), 
            object->GetName().c_str());
-        Result res = object->WaitSynchronization(&wait);
+        // TODO(yuriks): Verify how the real function behaves when an error happens here
+        ResultVal<bool> wait_result = object->WaitSynchronization();
+        bool wait = wait_result.Succeeded() && *wait_result;
        if (!wait && !wait_all) {
            *out = i;
-            return 0;
+            return RESULT_SUCCESS.raw;
        } else {
            unlock_all = false;
        }
@@ -168,55 +172,57 @@ Result WaitSynchronizationN(s32* out, Handle* handles, s32 handle_count, bool wa
    if (wait_all && unlock_all) {
        *out = handle_count;
-        return 0;
+        return RESULT_SUCCESS.raw;
    }
    // Check for next thread to schedule
    HLE::Reschedule(__func__);
-    return 0;
+    return RESULT_SUCCESS.raw;
 }
 /// Create an address arbiter (to allocate access to shared resources)
-Result CreateAddressArbiter(u32* arbiter) {
+static Result CreateAddressArbiter(u32* arbiter) {
-    DEBUG_LOG(SVC, "called");
+    LOG_TRACE(Kernel_SVC, "called");
    Handle handle = Kernel::CreateAddressArbiter();
    *arbiter = handle;
    return 0;
 }
 /// Arbitrate address
-Result ArbitrateAddress(Handle arbiter, u32 address, u32 type, u32 value, s64 nanoseconds) {
+static Result ArbitrateAddress(Handle arbiter, u32 address, u32 type, u32 value, s64 nanoseconds) {
-    return Kernel::ArbitrateAddress(arbiter, static_cast<Kernel::ArbitrationType>(type), address, 
+    LOG_TRACE(Kernel_SVC, "called handle=0x%08X, address=0x%08X, type=0x%08X, value=0x%08X", arbiter,
-        value);
+        address, type, value);
+    return Kernel::ArbitrateAddress(arbiter, static_cast<Kernel::ArbitrationType>(type),
+            address, value).raw;
 }
 /// Used to output a message on a debug hardware unit - does nothing on a retail unit
-void OutputDebugString(const char* string) {
+static void OutputDebugString(const char* string) {
-    OS_LOG(SVC, "%s", string);
+    LOG_DEBUG(Debug_Emulated, "%s", string);
 }
 /// Get resource limit
-Result GetResourceLimit(Handle* resource_limit, Handle process) {
+static Result GetResourceLimit(Handle* resource_limit, Handle process) {
    // With regards to proceess values:
-    // 0xFFFF8001 is a handle alias for the current KProcess, and 0xFFFF8000 is a handle alias for 
+    // 0xFFFF8001 is a handle alias for the current KProcess, and 0xFFFF8000 is a handle alias for
    // the current KThread.
    *resource_limit = 0xDEADBEEF;
-    ERROR_LOG(SVC, "(UNIMPLEMENTED) called process=0x%08X", process);
+    LOG_ERROR(Kernel_SVC, "(UNIMPLEMENTED) called process=0x%08X", process);
    return 0;
 }
 /// Get resource limit current values
-Result GetResourceLimitCurrentValues(s64* values, Handle resource_limit, void* names, 
+static Result GetResourceLimitCurrentValues(s64* values, Handle resource_limit, void* names,
    s32 name_count) {
-    ERROR_LOG(SVC, "(UNIMPLEMENTED) called resource_limit=%08X, names=%s, name_count=%d",
+    LOG_ERROR(Kernel_SVC, "(UNIMPLEMENTED) called resource_limit=%08X, names=%s, name_count=%d",
        resource_limit, names, name_count);
    Memory::Write32(Core::g_app_core->GetReg(0), 0); // Normmatt: Set used memory to 0 for now
    return 0;
 }
 /// Creates a new thread
-Result CreateThread(u32 priority, u32 entry_point, u32 arg, u32 stack_top, u32 processor_id) {
+static Result CreateThread(u32 priority, u32 entry_point, u32 arg, u32 stack_top, u32 processor_id) {
    std::string name;
    if (Symbols::HasSymbol(entry_point)) {
        TSymbol symbol = Symbols::GetSymbol(entry_point);
@@ -230,18 +236,18 @@ Result CreateThread(u32 priority, u32 entry_point, u32 arg, u32 stack_top, u32 p
    Core::g_app_core->SetReg(1, thread);
-    DEBUG_LOG(SVC, "called entrypoint=0x%08X (%s), arg=0x%08X, stacktop=0x%08X, "
+    LOG_TRACE(Kernel_SVC, "called entrypoint=0x%08X (%s), arg=0x%08X, stacktop=0x%08X, "
-        "threadpriority=0x%08X, processorid=0x%08X : created handle=0x%08X", entry_point, 
+        "threadpriority=0x%08X, processorid=0x%08X : created handle=0x%08X", entry_point,
        name.c_str(), arg, stack_top, priority, processor_id, thread);
-    
    return 0;
 }
 /// Called when a thread exits
-u32 ExitThread() {
+static u32 ExitThread() {
    Handle thread = Kernel::GetCurrentThreadHandle();
-    DEBUG_LOG(SVC, "called, pc=0x%08X", Core::g_app_core->GetPC()); // PC = 0x0010545C
+    LOG_TRACE(Kernel_SVC, "called, pc=0x%08X", Core::g_app_core->GetPC()); // PC = 0x0010545C
    Kernel::StopThread(thread, __func__);
    HLE::Reschedule(__func__);
@@ -249,55 +255,73 @@ u32 ExitThread() {
 }
 /// Gets the priority for the specified thread
-Result GetThreadPriority(s32* priority, Handle handle) {
+static Result GetThreadPriority(s32* priority, Handle handle) {
-    *priority = Kernel::GetThreadPriority(handle);
+    ResultVal<u32> priority_result = Kernel::GetThreadPriority(handle);
-    return 0;
+    if (priority_result.Succeeded()) {
+        *priority = *priority_result;
+    }
+    return priority_result.Code().raw;
 }
 /// Sets the priority for the specified thread
-Result SetThreadPriority(Handle handle, s32 priority) {
+static Result SetThreadPriority(Handle handle, s32 priority) {
-    return Kernel::SetThreadPriority(handle, priority);
+    return Kernel::SetThreadPriority(handle, priority).raw;
 }
 /// Create a mutex
-Result CreateMutex(Handle* mutex, u32 initial_locked) {
+static Result CreateMutex(Handle* mutex, u32 initial_locked) {
    *mutex = Kernel::CreateMutex((initial_locked != 0));
-    DEBUG_LOG(SVC, "called initial_locked=%s : created handle=0x%08X", 
+    LOG_TRACE(Kernel_SVC, "called initial_locked=%s : created handle=0x%08X",
        initial_locked ? "true" : "false", *mutex);
    return 0;
 }
 /// Release a mutex
-Result ReleaseMutex(Handle handle) {
+static Result ReleaseMutex(Handle handle) {
-    DEBUG_LOG(SVC, "called handle=0x%08X", handle);
+    LOG_TRACE(Kernel_SVC, "called handle=0x%08X", handle);
-    _assert_msg_(KERNEL, (handle != 0), "called, but handle is nullptr!");
+    ResultCode res = Kernel::ReleaseMutex(handle);
-    Kernel::ReleaseMutex(handle);
+    return res.raw;
-    return 0;
 }
-/// Get current thread ID
+/// Get the ID for the specified thread.
-Result GetThreadId(u32* thread_id, Handle thread) {
+static Result GetThreadId(u32* thread_id, Handle handle) {
-    ERROR_LOG(SVC, "(UNIMPLEMENTED) called thread=0x%08X", thread);
+    LOG_TRACE(Kernel_SVC, "called thread=0x%08X", handle);
-    return 0;
+    ResultCode result = Kernel::GetThreadId(thread_id, handle);
+    return result.raw;
+}
+/// Creates a semaphore
+static Result CreateSemaphore(Handle* semaphore, s32 initial_count, s32 max_count) {
+    ResultCode res = Kernel::CreateSemaphore(semaphore, initial_count, max_count);
+    LOG_TRACE(Kernel_SVC, "called initial_count=%d, max_count=%d, created handle=0x%08X",
+        initial_count, max_count, *semaphore);
+    return res.raw;
+}
+/// Releases a certain number of slots in a semaphore
+static Result ReleaseSemaphore(s32* count, Handle semaphore, s32 release_count) {
+    LOG_TRACE(Kernel_SVC, "called release_count=%d, handle=0x%08X", release_count, semaphore);
+    ResultCode res = Kernel::ReleaseSemaphore(count, semaphore, release_count);
+    return res.raw;
 }
 /// Query memory
-Result QueryMemory(void* info, void* out, u32 addr) {
+static Result QueryMemory(void* info, void* out, u32 addr) {
-    ERROR_LOG(SVC, "(UNIMPLEMENTED) called addr=0x%08X", addr);
+    LOG_ERROR(Kernel_SVC, "(UNIMPLEMENTED) called addr=0x%08X", addr);
    return 0;
 }
 /// Create an event
-Result CreateEvent(Handle* evt, u32 reset_type) {
+static Result CreateEvent(Handle* evt, u32 reset_type) {
    *evt = Kernel::CreateEvent((ResetType)reset_type);
-    DEBUG_LOG(SVC, "called reset_type=0x%08X : created handle=0x%08X", 
+    LOG_TRACE(Kernel_SVC, "called reset_type=0x%08X : created handle=0x%08X",
        reset_type, *evt);
    return 0;
 }
 /// Duplicates a kernel handle
-Result DuplicateHandle(Handle* out, Handle handle) {
+static Result DuplicateHandle(Handle* out, Handle handle) {
-    DEBUG_LOG(SVC, "called handle=0x%08X", handle);
+    LOG_WARNING(Kernel_SVC, "(STUBBED) called handle=0x%08X", handle);
    // Translate kernel handles -> real handles
    if (handle == Kernel::CurrentThread) {
@@ -305,7 +329,7 @@ Result DuplicateHandle(Handle* out, Handle handle) {
    }
    _assert_msg_(KERNEL, (handle != Kernel::CurrentProcess),
        "(UNIMPLEMENTED) process handle duplication!");
-    
    // TODO(bunnei): FixMe - This is a hack to return the handle that we were asked to duplicate.
    *out = handle;
@@ -313,26 +337,27 @@ Result DuplicateHandle(Handle* out, Handle handle) {
 }
 /// Signals an event
-Result SignalEvent(Handle evt) {
+static Result SignalEvent(Handle evt) {
-    Result res = Kernel::SignalEvent(evt);
+    LOG_TRACE(Kernel_SVC, "called event=0x%08X", evt);
-    DEBUG_LOG(SVC, "called event=0x%08X", evt);
+    return Kernel::SignalEvent(evt).raw;
-    return res;
 }
 /// Clears an event
-Result ClearEvent(Handle evt) {
+static Result ClearEvent(Handle evt) {
-    Result res = Kernel::ClearEvent(evt);
+    LOG_TRACE(Kernel_SVC, "called event=0x%08X", evt);
-    DEBUG_LOG(SVC, "called event=0x%08X", evt);
+    return Kernel::ClearEvent(evt).raw;
-    return res;
 }
 /// Sleep the current thread
-void SleepThread(s64 nanoseconds) {
+static void SleepThread(s64 nanoseconds) {
-    DEBUG_LOG(SVC, "called nanoseconds=%lld", nanoseconds);
+    LOG_TRACE(Kernel_SVC, "called nanoseconds=%lld", nanoseconds);
+    // Check for next thread to schedule
+    HLE::Reschedule(__func__);
 }
 /// This returns the total CPU ticks elapsed since the CPU was powered-on
-s64 GetSystemTick() {
+static s64 GetSystemTick() {
    return (s64)Core::g_app_core->GetTicks();
 }
@@ -358,8 +383,8 @@ const HLE::FunctionDef SVC_Table[] = {
    {0x12, nullptr,                         "Run"},
    {0x13, HLE::Wrap<CreateMutex>,          "CreateMutex"},
    {0x14, HLE::Wrap<ReleaseMutex>,         "ReleaseMutex"},
-    {0x15, nullptr,                         "CreateSemaphore"},
+    {0x15, HLE::Wrap<CreateSemaphore>,      "CreateSemaphore"},
-    {0x16, nullptr,                         "ReleaseSemaphore"},
+    {0x16, HLE::Wrap<ReleaseSemaphore>,     "ReleaseSemaphore"},
    {0x17, HLE::Wrap<CreateEvent>,          "CreateEvent"},
    {0x18, HLE::Wrap<SignalEvent>,          "SignalEvent"},
    {0x19, HLE::Wrap<ClearEvent>,           "ClearEvent"},
diff --git a/src/core/hle/svc.h b/src/core/hle/svc.h
index 1d125faf6..6be393d0b 100644
--- a/src/core/hle/svc.h
+++ b/src/core/hle/svc.h
@@ -1,6 +1,6 @@
 // Copyright 2014 Citra Emulator Project
 // Licensed under GPLv2
-// Refer to the license.txt file included.  
+// Refer to the license.txt file included.
 #pragma once
diff --git a/src/core/hw/gpu.cpp b/src/core/hw/gpu.cpp
index 3ad801c63..da78b85e5 100644
--- a/src/core/hw/gpu.cpp
+++ b/src/core/hw/gpu.cpp
@@ -35,7 +35,7 @@ inline void Read(T &var, const u32 raw_addr) {
    // Reads other than u32 are untested, so I'd rather have them abort than silently fail
    if (index >= Regs::NumIds() || !std::is_same<T,u32>::value) {
-        ERROR_LOG(GPU, "unknown Read%lu @ 0x%08X", sizeof(var) * 8, addr);
+        LOG_ERROR(HW_GPU, "unknown Read%lu @ 0x%08X", sizeof(var) * 8, addr);
        return;
    }
@@ -49,7 +49,7 @@ inline void Write(u32 addr, const T data) {
    // Writes other than u32 are untested, so I'd rather have them abort than silently fail
    if (index >= Regs::NumIds() || !std::is_same<T,u32>::value) {
-        ERROR_LOG(GPU, "unknown Write%lu 0x%08X @ 0x%08X", sizeof(data) * 8, data, addr);
+        LOG_ERROR(HW_GPU, "unknown Write%lu 0x%08X @ 0x%08X", sizeof(data) * 8, (u32)data, addr);
        return;
    }
@@ -73,7 +73,7 @@ inline void Write(u32 addr, const T data) {
            for (u32* ptr = start; ptr < end; ++ptr)
                *ptr = bswap32(config.value); // TODO: This is just a workaround to missing framebuffer format emulation
-            DEBUG_LOG(GPU, "MemoryFill from 0x%08x to 0x%08x", config.GetStartAddress(), config.GetEndAddress());
+            LOG_TRACE(HW_GPU, "MemoryFill from 0x%08x to 0x%08x", config.GetStartAddress(), config.GetEndAddress());
        }
        break;
    }
@@ -105,7 +105,7 @@ inline void Write(u32 addr, const T data) {
                    }
                    default:
-                        ERROR_LOG(GPU, "Unknown source framebuffer format %x", config.input_format.Value());
+                        LOG_ERROR(HW_GPU, "Unknown source framebuffer format %x", config.input_format.Value());
                        break;
                    }
@@ -132,16 +132,16 @@ inline void Write(u32 addr, const T data) {
                    }
                    default:
-                        ERROR_LOG(GPU, "Unknown destination framebuffer format %x", config.output_format.Value());
+                        LOG_ERROR(HW_GPU, "Unknown destination framebuffer format %x", config.output_format.Value());
                        break;
                    }
                }
            }
-            DEBUG_LOG(GPU, "DisplayTriggerTransfer: 0x%08x bytes from 0x%08x(%ux%u)-> 0x%08x(%ux%u), dst format %x",
+            LOG_TRACE(HW_GPU, "DisplayTriggerTransfer: 0x%08x bytes from 0x%08x(%ux%u)-> 0x%08x(%ux%u), dst format %x",
                      config.output_height * config.output_width * 4,
-                      config.GetPhysicalInputAddress(), config.input_width, config.input_height,
+                      config.GetPhysicalInputAddress(), (u32)config.input_width, (u32)config.input_height,
-                      config.GetPhysicalOutputAddress(), config.output_width, config.output_height,
+                      config.GetPhysicalOutputAddress(), (u32)config.output_width, (u32)config.output_height,
                      config.output_format.Value());
        }
        break;
@@ -154,8 +154,7 @@ inline void Write(u32 addr, const T data) {
        if (config.trigger & 1)
        {
            u32* buffer = (u32*)Memory::GetPointer(Memory::PhysicalToVirtualAddress(config.GetPhysicalAddress()));
-            u32 size = config.size << 3;
+            Pica::CommandProcessor::ProcessCommandList(buffer, config.size);
-            Pica::CommandProcessor::ProcessCommandList(buffer, size);
        }
        break;
    }
@@ -252,12 +251,12 @@ void Init() {
    framebuffer_sub.color_format = Regs::PixelFormat::RGB8;
    framebuffer_sub.active_fb = 0;
-    NOTICE_LOG(GPU, "initialized OK");
+    LOG_DEBUG(HW_GPU, "initialized OK");
 }
 /// Shutdown hardware
 void Shutdown() {
-    NOTICE_LOG(GPU, "shutdown OK");
+    LOG_DEBUG(HW_GPU, "shutdown OK");
 }
 } // namespace
diff --git a/src/core/hw/gpu.h b/src/core/hw/gpu.h
index 3fa7b9ccf..86cd5e680 100644
--- a/src/core/hw/gpu.h
+++ b/src/core/hw/gpu.h
@@ -169,7 +169,7 @@ struct Regs {
    INSERT_PADDING_WORDS(0x331);
    struct {
-        // command list size
+        // command list size (in bytes)
        u32 size;
        INSERT_PADDING_WORDS(0x1);
diff --git a/src/core/hw/hw.cpp b/src/core/hw/hw.cpp
index 33f75c50a..af42b41fb 100644
--- a/src/core/hw/hw.cpp
+++ b/src/core/hw/hw.cpp
@@ -6,7 +6,6 @@
 #include "core/hw/hw.h"
 #include "core/hw/gpu.h"
-#include "core/hw/ndma.h"
 namespace HW {
@@ -39,36 +38,26 @@ enum {
 template <typename T>
 inline void Read(T &var, const u32 addr) {
    switch (addr & 0xFFFFF000) {
-    
-    // TODO(bunnei): What is the virtual address of NDMA?
-    // case VADDR_NDMA:
-    //     NDMA::Read(var, addr);
-    //     break;
    case VADDR_GPU:
        GPU::Read(var, addr);
        break;
    default:
-        ERROR_LOG(HW, "unknown Read%lu @ 0x%08X", sizeof(var) * 8, addr);
+        LOG_ERROR(HW_Memory, "unknown Read%lu @ 0x%08X", sizeof(var) * 8, addr);
    }
 }
 template <typename T>
 inline void Write(u32 addr, const T data) {
    switch (addr & 0xFFFFF000) {
-    
-    // TODO(bunnei): What is the virtual address of NDMA?
-    // case VADDR_NDMA 
-    //     NDMA::Write(addr, data);
-    //     break;
    case VADDR_GPU:
        GPU::Write(addr, data);
        break;
    default:
-        ERROR_LOG(HW, "unknown Write%lu 0x%08X @ 0x%08X", sizeof(data) * 8, data, addr);
+        LOG_ERROR(HW_Memory, "unknown Write%lu 0x%08X @ 0x%08X", sizeof(data) * 8, (u32)data, addr);
    }
 }
@@ -87,19 +76,17 @@ template void Write<u8>(u32 addr, const u8 data);
 /// Update hardware
 void Update() {
    GPU::Update();
-    NDMA::Update();
 }
 /// Initialize hardware
 void Init() {
    GPU::Init();
-    NDMA::Init();
+    LOG_DEBUG(HW, "initialized OK");
-    NOTICE_LOG(HW, "initialized OK");
 }
 /// Shutdown hardware
 void Shutdown() {
-    NOTICE_LOG(HW, "shutdown OK");
+    LOG_DEBUG(HW, "shutdown OK");
 }
 }
 \ No newline at end of file
diff --git a/src/core/hw/ndma.cpp b/src/core/hw/ndma.cpp
deleted file mode 100644
index e29a773f1..000000000
--- a/src/core/hw/ndma.cpp
+++ /dev/null
@@ -1,47 +0,0 @@
-// Copyright 2014 Citra Emulator Project
-// Licensed under GPLv2
-// Refer to the license.txt file included.
-#include "common/common_types.h"
-#include "core/hw/ndma.h"
-namespace NDMA {
-template <typename T>
-inline void Read(T &var, const u32 addr) {
-    ERROR_LOG(NDMA, "unknown Read%lu @ 0x%08X", sizeof(var) * 8, addr);
-}
-template <typename T>
-inline void Write(u32 addr, const T data) {
-    ERROR_LOG(NDMA, "unknown Write%lu 0x%08X @ 0x%08X", sizeof(data) * 8, data, addr);
-}
-// Explicitly instantiate template functions because we aren't defining this in the header:
-template void Read<u64>(u64 &var, const u32 addr);
-template void Read<u32>(u32 &var, const u32 addr);
-template void Read<u16>(u16 &var, const u32 addr);
-template void Read<u8>(u8 &var, const u32 addr);
-template void Write<u64>(u32 addr, const u64 data);
-template void Write<u32>(u32 addr, const u32 data);
-template void Write<u16>(u32 addr, const u16 data);
-template void Write<u8>(u32 addr, const u8 data);
-/// Update hardware
-void Update() {
-}
-/// Initialize hardware
-void Init() {
-    NOTICE_LOG(GPU, "initialized OK");
-}
-/// Shutdown hardware
-void Shutdown() {
-    NOTICE_LOG(GPU, "shutdown OK");
-}
-} // namespace
diff --git a/src/core/hw/ndma.h b/src/core/hw/ndma.h
deleted file mode 100644
index d8fa3d40b..000000000
--- a/src/core/hw/ndma.h
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright 2014 Citra Emulator Project
-// Licensed under GPLv2
-// Refer to the license.txt file included.
-#pragma once
-#include "common/common_types.h"
-namespace NDMA {
-template <typename T>
-inline void Read(T &var, const u32 addr);
-template <typename T>
-inline void Write(u32 addr, const T data);
-/// Update hardware
-void Update();
-/// Initialize hardware
-void Init();
-/// Shutdown hardware
-void Shutdown();
-} // namespace
diff --git a/src/core/loader/3dsx.cpp b/src/core/loader/3dsx.cpp
new file mode 100644
index 000000000..0437e5374
--- /dev/null
+++ b/src/core/loader/3dsx.cpp
@@ -0,0 +1,236 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2+
+// Refer to the license.txt file included.
+#include <algorithm>
+#include <vector>
+#include "core/file_sys/archive_romfs.h"
+#include "core/loader/elf.h"
+#include "core/loader/ncch.h"
+#include "core/hle/service/fs/archive.h"
+#include "core/mem_map.h"
+#include "3dsx.h"
+namespace Loader {
+/** 
+ * File layout:
+ * - File header
+ * - Code, rodata and data relocation table headers
+ * - Code segment
+ * - Rodata segment
+ * - Loadable (non-BSS) part of the data segment
+ * - Code relocation table
+ * - Rodata relocation table
+ * - Data relocation table
+ *
+ * Memory layout before relocations are applied:
+ * [0..codeSegSize)             -> code segment
+ * [codeSegSize..rodataSegSize) -> rodata segment
+ * [rodataSegSize..dataSegSize) -> data segment
+ *
+ * Memory layout after relocations are applied: well, however the loader sets it up :)
+ * The entrypoint is always the start of the code segment.
+ * The BSS section must be cleared manually by the application.
+ */
+enum THREEDSX_Error {
+    ERROR_NONE = 0,
+    ERROR_READ = 1,
+    ERROR_FILE = 2,
+    ERROR_ALLOC = 3
+};
+static const u32 RELOCBUFSIZE = 512;
+// File header
+static const u32 THREEDSX_MAGIC = 0x58534433; // '3DSX'
+#pragma pack(1)
+struct THREEDSX_Header
+{
+    u32 magic;
+    u16 header_size, reloc_hdr_size;
+    u32 format_ver;
+    u32 flags;
+    // Sizes of the code, rodata and data segments +
+    // size of the BSS section (uninitialized latter half of the data segment)
+    u32 code_seg_size, rodata_seg_size, data_seg_size, bss_size;
+};
+// Relocation header: all fields (even extra unknown fields) are guaranteed to be relocation counts.
+struct THREEDSX_RelocHdr
+{
+    // # of absolute relocations (that is, fix address to post-relocation memory layout)
+    u32 cross_segment_absolute; 
+    // # of cross-segment relative relocations (that is, 32bit signed offsets that need to be patched)
+    u32 cross_segment_relative; 
+    // more?
+    // Relocations are written in this order:
+    // - Absolute relocations
+    // - Relative relocations
+};
+// Relocation entry: from the current pointer, skip X words and patch Y words
+struct THREEDSX_Reloc
+{
+    u16 skip, patch;
+};
+#pragma pack()
+struct THREEloadinfo
+{
+    u8* seg_ptrs[3]; // code, rodata & data
+    u32 seg_addrs[3];
+    u32 seg_sizes[3];
+};
+class THREEDSXReader {
+public:
+     static int Load3DSXFile(const std::string& filename, u32 base_addr);
+};
+static u32 TranslateAddr(u32 addr, THREEloadinfo *loadinfo, u32* offsets)
+{
+    if (addr < offsets[0])
+        return loadinfo->seg_addrs[0] + addr;
+    if (addr < offsets[1])
+        return loadinfo->seg_addrs[1] + addr - offsets[0];
+    return loadinfo->seg_addrs[2] + addr - offsets[1];
+}
+int THREEDSXReader::Load3DSXFile(const std::string& filename, u32 base_addr)
+{
+    FileUtil::IOFile file(filename, "rb");
+    if (!file.IsOpen()) {
+        return ERROR_FILE;
+    }
+    THREEDSX_Header hdr;
+    if (file.ReadBytes(&hdr, sizeof(hdr)) != sizeof(hdr))
+        return ERROR_READ;
+    THREEloadinfo loadinfo;
+    //loadinfo segments must be a multiple of 0x1000
+    loadinfo.seg_sizes[0] = (hdr.code_seg_size + 0xFFF) &~0xFFF;
+    loadinfo.seg_sizes[1] = (hdr.rodata_seg_size + 0xFFF) &~0xFFF;
+    loadinfo.seg_sizes[2] = (hdr.data_seg_size + 0xFFF) &~0xFFF;
+    u32 offsets[2] = { loadinfo.seg_sizes[0], loadinfo.seg_sizes[0] + loadinfo.seg_sizes[1] };
+    u32 data_load_size = (hdr.data_seg_size - hdr.bss_size + 0xFFF) &~0xFFF;
+    u32 bss_load_size = loadinfo.seg_sizes[2] - data_load_size;
+    u32 n_reloc_tables = hdr.reloc_hdr_size / 4;
+    std::vector<u8> all_mem(loadinfo.seg_sizes[0] + loadinfo.seg_sizes[1] + loadinfo.seg_sizes[2] + 3 * n_reloc_tables);
+    loadinfo.seg_addrs[0] = base_addr;
+    loadinfo.seg_addrs[1] = loadinfo.seg_addrs[0] + loadinfo.seg_sizes[0];
+    loadinfo.seg_addrs[2] = loadinfo.seg_addrs[1] + loadinfo.seg_sizes[1];
+    loadinfo.seg_ptrs[0] = &all_mem[0];
+    loadinfo.seg_ptrs[1] = loadinfo.seg_ptrs[0] + loadinfo.seg_sizes[0];
+    loadinfo.seg_ptrs[2] = loadinfo.seg_ptrs[1] + loadinfo.seg_sizes[1];
+    // Skip header for future compatibility
+    file.Seek(hdr.header_size, SEEK_SET);
+    // Read the relocation headers
+    u32* relocs = (u32*)(loadinfo.seg_ptrs[2] + hdr.data_seg_size);
+    for (u32 current_segment = 0; current_segment < 3; current_segment++) {
+        if (file.ReadBytes(&relocs[current_segment*n_reloc_tables], n_reloc_tables * 4) != n_reloc_tables * 4)
+            return ERROR_READ;
+    }
+    // Read the segments
+    if (file.ReadBytes(loadinfo.seg_ptrs[0], hdr.code_seg_size) != hdr.code_seg_size)
+        return ERROR_READ;
+    if (file.ReadBytes(loadinfo.seg_ptrs[1], hdr.rodata_seg_size) != hdr.rodata_seg_size)
+        return ERROR_READ;
+    if (file.ReadBytes(loadinfo.seg_ptrs[2], hdr.data_seg_size - hdr.bss_size) != hdr.data_seg_size - hdr.bss_size)
+        return ERROR_READ;
+    // BSS clear
+    memset((char*)loadinfo.seg_ptrs[2] + hdr.data_seg_size - hdr.bss_size, 0, hdr.bss_size);
+    // Relocate the segments
+    for (u32 current_segment = 0; current_segment < 3; current_segment++) {
+        for (u32 current_segment_reloc_table = 0; current_segment_reloc_table < n_reloc_tables; current_segment_reloc_table++) {
+            u32 n_relocs = relocs[current_segment*n_reloc_tables + current_segment_reloc_table];
+            if (current_segment_reloc_table >= 2) {
+                // We are not using this table - ignore it because we don't know what it dose
+                file.Seek(n_relocs*sizeof(THREEDSX_Reloc), SEEK_CUR);
+                continue;
+            }
+            static THREEDSX_Reloc reloc_table[RELOCBUFSIZE];
+            u32* pos = (u32*)loadinfo.seg_ptrs[current_segment];
+            u32* end_pos = pos + (loadinfo.seg_sizes[current_segment] / 4);
+            while (n_relocs) {
+                u32 remaining = std::min(RELOCBUFSIZE, n_relocs);
+                n_relocs -= remaining;
+                if (file.ReadBytes(reloc_table, remaining*sizeof(THREEDSX_Reloc)) != remaining*sizeof(THREEDSX_Reloc))
+                    return ERROR_READ;
+                for (u32 current_inprogress = 0; current_inprogress < remaining && pos < end_pos; current_inprogress++) {
+                    LOG_TRACE(Loader, "(t=%d,skip=%u,patch=%u)\n",
+                        current_segment_reloc_table, (u32)reloc_table[current_inprogress].skip, (u32)reloc_table[current_inprogress].patch);
+                    pos += reloc_table[current_inprogress].skip;
+                    s32 num_patches = reloc_table[current_inprogress].patch;
+                    while (0 < num_patches && pos < end_pos) {
+                        u32 in_addr = (char*)pos - (char*)&all_mem[0];
+                        u32 addr = TranslateAddr(*pos, &loadinfo, offsets);
+                        LOG_TRACE(Loader, "Patching %08X <-- rel(%08X,%d) (%08X)\n",
+                            base_addr + in_addr, addr, current_segment_reloc_table, *pos);
+                        switch (current_segment_reloc_table) {
+                        case 0: *pos = (addr); break;
+                        case 1: *pos = (addr - in_addr); break;
+                        default: break; //this should never happen
+                        }
+                        pos++;
+                        num_patches--;
+                    }
+                }
+            }
+        }
+    }
+    // Write the data
+    memcpy(Memory::GetPointer(base_addr), &all_mem[0], loadinfo.seg_sizes[0] + loadinfo.seg_sizes[1] + loadinfo.seg_sizes[2]);
+    LOG_DEBUG(Loader, "CODE:   %u pages\n", loadinfo.seg_sizes[0] / 0x1000);
+    LOG_DEBUG(Loader, "RODATA: %u pages\n", loadinfo.seg_sizes[1] / 0x1000);
+    LOG_DEBUG(Loader, "DATA:   %u pages\n", data_load_size / 0x1000);
+    LOG_DEBUG(Loader, "BSS:    %u pages\n", bss_load_size / 0x1000);
+    return ERROR_NONE;
+}
+    /// AppLoader_DSX constructor
+    AppLoader_THREEDSX::AppLoader_THREEDSX(const std::string& filename) : filename(filename) {
+    }
+    /// AppLoader_DSX destructor
+    AppLoader_THREEDSX::~AppLoader_THREEDSX() {
+    }
+    /**
+    * Loads a 3DSX file
+    * @return Success on success, otherwise Error
+    */
+    ResultStatus AppLoader_THREEDSX::Load() {
+        LOG_INFO(Loader, "Loading 3DSX file %s...", filename.c_str());
+        FileUtil::IOFile file(filename, "rb");
+        if (file.IsOpen()) {
+            THREEDSXReader reader;
+            reader.Load3DSXFile(filename, 0x00100000);
+            Kernel::LoadExec(0x00100000);
+        } else {
+            return ResultStatus::Error;
+        }
+        return ResultStatus::Success;
+    }
+} // namespace Loader
diff --git a/src/core/loader/3dsx.h b/src/core/loader/3dsx.h
new file mode 100644
index 000000000..848d3ef8a
--- /dev/null
+++ b/src/core/loader/3dsx.h
@@ -0,0 +1,32 @@
+// Copyright 2014 Dolphin Emulator Project / Citra Emulator Project
+// Licensed under GPLv2+
+// Refer to the license.txt file included.
+#pragma once
+#include "common/common_types.h"
+#include "core/loader/loader.h"
+////////////////////////////////////////////////////////////////////////////////////////////////////
+// Loader namespace
+namespace Loader {
+/// Loads an 3DSX file
+class AppLoader_THREEDSX final : public AppLoader {
+public:
+    AppLoader_THREEDSX(const std::string& filename);
+    ~AppLoader_THREEDSX() override;
+    /**
+     * Load the bootable file
+     * @return ResultStatus result of function
+     */
+    ResultStatus Load() override;
+private:
+    std::string filename;
+    bool        is_loaded;
+};
+} // namespace Loader
diff --git a/src/core/loader/elf.cpp b/src/core/loader/elf.cpp
index 389d5a8c9..c95882f4a 100644
--- a/src/core/loader/elf.cpp
+++ b/src/core/loader/elf.cpp
@@ -254,18 +254,18 @@ const char *ElfReader::GetSectionName(int section) const {
 }
 bool ElfReader::LoadInto(u32 vaddr) {
-    DEBUG_LOG(MASTER_LOG, "String section: %i", header->e_shstrndx);
+    LOG_DEBUG(Loader, "String section: %i", header->e_shstrndx);
    // Should we relocate?
    relocate = (header->e_type != ET_EXEC);
    if (relocate) {
-        DEBUG_LOG(MASTER_LOG, "Relocatable module");
+        LOG_DEBUG(Loader, "Relocatable module");
        entryPoint += vaddr;
    } else {
-        DEBUG_LOG(MASTER_LOG, "Prerelocated executable");
+        LOG_DEBUG(Loader, "Prerelocated executable");
    }
-    INFO_LOG(MASTER_LOG, "%i segments:", header->e_phnum);
+    LOG_DEBUG(Loader, "%i segments:", header->e_phnum);
    // First pass : Get the bits into RAM
    u32 segment_addr[32];
@@ -273,17 +273,17 @@ bool ElfReader::LoadInto(u32 vaddr) {
    for (int i = 0; i < header->e_phnum; i++) {
        Elf32_Phdr *p = segments + i;
-        INFO_LOG(MASTER_LOG, "Type: %i Vaddr: %08x Filesz: %i Memsz: %i ", p->p_type, p->p_vaddr, 
+        LOG_DEBUG(Loader, "Type: %i Vaddr: %08x Filesz: %i Memsz: %i ", p->p_type, p->p_vaddr,
            p->p_filesz, p->p_memsz);
        if (p->p_type == PT_LOAD) {
            segment_addr[i] = base_addr + p->p_vaddr;
            memcpy(Memory::GetPointer(segment_addr[i]), GetSegmentPtr(i), p->p_filesz);
-            INFO_LOG(MASTER_LOG, "Loadable Segment Copied to %08x, size %08x", segment_addr[i], 
+            LOG_DEBUG(Loader, "Loadable Segment Copied to %08x, size %08x", segment_addr[i],
                p->p_memsz);
        }
    }
-    INFO_LOG(MASTER_LOG, "Done loading.");
+    LOG_DEBUG(Loader, "Done loading.");
    return true;
 }
@@ -346,7 +346,7 @@ AppLoader_ELF::~AppLoader_ELF() {
 * @return True on success, otherwise false
 */
 ResultStatus AppLoader_ELF::Load() {
-    INFO_LOG(LOADER, "Loading ELF file %s...", filename.c_str());
+    LOG_INFO(Loader, "Loading ELF file %s...", filename.c_str());
    if (is_loaded)
        return ResultStatus::ErrorAlreadyLoaded;
diff --git a/src/core/loader/loader.cpp b/src/core/loader/loader.cpp
index a268e021a..480274d23 100644
--- a/src/core/loader/loader.cpp
+++ b/src/core/loader/loader.cpp
@@ -5,9 +5,10 @@
 #include <memory>
 #include "core/file_sys/archive_romfs.h"
+#include "core/loader/3dsx.h"
 #include "core/loader/elf.h"
 #include "core/loader/ncch.h"
-#include "core/hle/kernel/archive.h"
+#include "core/hle/service/fs/archive.h"
 #include "core/mem_map.h"
 ////////////////////////////////////////////////////////////////////////////////////////////////////
@@ -22,7 +23,7 @@ namespace Loader {
 */
 FileType IdentifyFile(const std::string &filename) {
    if (filename.size() == 0) {
-        ERROR_LOG(LOADER, "invalid filename %s", filename.c_str());
+        LOG_ERROR(Loader, "invalid filename %s", filename.c_str());
        return FileType::Error;
    }
@@ -42,6 +43,8 @@ FileType IdentifyFile(const std::string &filename) {
        return FileType::CCI;
    } else if (extension == ".bin") {
        return FileType::BIN;
+    } else if (extension == ".3dsx") {
+        return FileType::THREEDSX;
    }
    return FileType::Unknown;
 }
@@ -52,10 +55,14 @@ FileType IdentifyFile(const std::string &filename) {
 * @return ResultStatus result of function
 */
 ResultStatus LoadFile(const std::string& filename) {
-    INFO_LOG(LOADER, "Loading file %s...", filename.c_str());
+    LOG_INFO(Loader, "Loading file %s...", filename.c_str());
    switch (IdentifyFile(filename)) {
+    //3DSX file format...
+    case FileType::THREEDSX:
+        return AppLoader_THREEDSX(filename).Load();
    // Standard ELF file format...
    case FileType::ELF:
        return AppLoader_ELF(filename).Load();
@@ -67,7 +74,8 @@ ResultStatus LoadFile(const std::string& filename) {
        // Load application and RomFS
        if (ResultStatus::Success == app_loader.Load()) {
-            Kernel::CreateArchive(new FileSys::Archive_RomFS(app_loader), "RomFS");
+            Kernel::g_program_id = app_loader.GetProgramId();
+            Service::FS::CreateArchive(std::make_unique<FileSys::Archive_RomFS>(app_loader), Service::FS::ArchiveIdCode::RomFS);
            return ResultStatus::Success;
        }
        break;
@@ -76,7 +84,7 @@ ResultStatus LoadFile(const std::string& filename) {
    // Raw BIN file format...
    case FileType::BIN:
    {
-        INFO_LOG(LOADER, "Loading BIN file %s...", filename.c_str());
+        LOG_INFO(Loader, "Loading BIN file %s...", filename.c_str());
        FileUtil::IOFile file(filename, "rb");
diff --git a/src/core/loader/loader.h b/src/core/loader/loader.h
index 68f843005..0f836d285 100644
--- a/src/core/loader/loader.h
+++ b/src/core/loader/loader.h
@@ -22,6 +22,7 @@ enum class FileType {
    CIA,
    ELF,
    BIN,
+    THREEDSX, //3DSX
 };
 /// Return type for functions in Loader namespace
diff --git a/src/core/loader/ncch.cpp b/src/core/loader/ncch.cpp
index 1e5501e6d..4d23656ec 100644
--- a/src/core/loader/ncch.cpp
+++ b/src/core/loader/ncch.cpp
@@ -24,7 +24,7 @@ static const int kBlockSize     = 0x200;    ///< Size of ExeFS blocks (in bytes)
 * @param size Size of compressed buffer
 * @return Size of decompressed buffer
 */
-u32 LZSS_GetDecompressedSize(u8* buffer, u32 size) {
+static u32 LZSS_GetDecompressedSize(u8* buffer, u32 size) {
    u32 offset_size = *(u32*)(buffer + size - 4);
    return offset_size + size;
 }
@@ -37,7 +37,7 @@ u32 LZSS_GetDecompressedSize(u8* buffer, u32 size) {
 * @param decompressed_size Size of decompressed buffer
 * @return True on success, otherwise false
 */
-bool LZSS_Decompress(u8* compressed, u32 compressed_size, u8* decompressed, u32 decompressed_size) {
+static bool LZSS_Decompress(u8* compressed, u32 compressed_size, u8* decompressed, u32 decompressed_size) {
    u8* footer = compressed + compressed_size - 8;
    u32 buffer_top_and_bottom = *(u32*)footer;
    u32 out = decompressed_size;
@@ -118,7 +118,7 @@ AppLoader_NCCH::~AppLoader_NCCH() {
 * @return ResultStatus result of function
 */
 ResultStatus AppLoader_NCCH::LoadExec() const {
-    if (!is_loaded) 
+    if (!is_loaded)
        return ResultStatus::ErrorNotLoaded;
    std::vector<u8> code;
@@ -140,13 +140,13 @@ ResultStatus AppLoader_NCCH::LoadSectionExeFS(const char* name, std::vector<u8>&
    // Iterate through the ExeFs archive until we find the .code file...
    FileUtil::IOFile file(filename, "rb");
    if (file.IsOpen()) {
+        LOG_DEBUG(Loader, "%d sections:", kMaxSections);
        for (int i = 0; i < kMaxSections; i++) {
            // Load the specified section...
            if (strcmp((const char*)exefs_header.section[i].name, name) == 0) {
-                INFO_LOG(LOADER, "ExeFS section %d:", i);
+                LOG_DEBUG(Loader, "%d - offset: 0x%08X, size: 0x%08X, name: %s", i,
-                INFO_LOG(LOADER, "    name:   %s", exefs_header.section[i].name);
+                        exefs_header.section[i].offset, exefs_header.section[i].size,
-                INFO_LOG(LOADER, "    offset: 0x%08X", exefs_header.section[i].offset);
+                        exefs_header.section[i].name);
-                INFO_LOG(LOADER, "    size:   0x%08X", exefs_header.section[i].size);
                s64 section_offset = (exefs_header.section[i].offset + exefs_offset +
                    sizeof(ExeFs_Header)+ncch_offset);
@@ -181,11 +181,11 @@ ResultStatus AppLoader_NCCH::LoadSectionExeFS(const char* name, std::vector<u8>&
            }
        }
    } else {
-        ERROR_LOG(LOADER, "Unable to read file %s!", filename.c_str());
+        LOG_ERROR(Loader, "Unable to read file %s!", filename.c_str());
        return ResultStatus::Error;
    }
    return ResultStatus::ErrorNotUsed;
-} 
+}
 /**
 * Loads an NCCH file (e.g. from a CCI, or the first NCCH in a CXI)
@@ -194,7 +194,7 @@ ResultStatus AppLoader_NCCH::LoadSectionExeFS(const char* name, std::vector<u8>&
 * @return True on success, otherwise false
 */
 ResultStatus AppLoader_NCCH::Load() {
-    INFO_LOG(LOADER, "Loading NCCH file %s...", filename.c_str());
+    LOG_INFO(Loader, "Loading NCCH file %s...", filename.c_str());
    if (is_loaded)
        return ResultStatus::ErrorAlreadyLoaded;
@@ -205,12 +205,12 @@ ResultStatus AppLoader_NCCH::Load() {
        // Skip NCSD header and load first NCCH (NCSD is just a container of NCCH files)...
        if (0 == memcmp(&ncch_header.magic, "NCSD", 4)) {
-            WARN_LOG(LOADER, "Only loading the first (bootable) NCCH within the NCSD file!");
+            LOG_WARNING(Loader, "Only loading the first (bootable) NCCH within the NCSD file!");
            ncch_offset = 0x4000;
            file.Seek(ncch_offset, 0);
            file.ReadBytes(&ncch_header, sizeof(NCCH_Header));
        }
-        
        // Verify we are loading the correct file type...
        if (0 != memcmp(&ncch_header.magic, "NCCH", 4))
            return ResultStatus::ErrorInvalidFormat;
@@ -222,17 +222,17 @@ ResultStatus AppLoader_NCCH::Load() {
        is_compressed = (exheader_header.codeset_info.flags.flag & 1) == 1;
        entry_point = exheader_header.codeset_info.text.address;
-        INFO_LOG(LOADER, "Name:            %s", exheader_header.codeset_info.name);
+        LOG_INFO(Loader, "Name:            %s", exheader_header.codeset_info.name);
-        INFO_LOG(LOADER, "Code compressed: %s", is_compressed ? "yes" : "no");
+        LOG_DEBUG(Loader, "Code compressed: %s", is_compressed ? "yes" : "no");
-        INFO_LOG(LOADER, "Entry point:     0x%08X", entry_point);
+        LOG_DEBUG(Loader, "Entry point:     0x%08X", entry_point);
        // Read ExeFS...
        exefs_offset = ncch_header.exefs_offset * kBlockSize;
        u32 exefs_size = ncch_header.exefs_size * kBlockSize;
-        INFO_LOG(LOADER, "ExeFS offset:    0x%08X", exefs_offset);
+        LOG_DEBUG(Loader, "ExeFS offset:    0x%08X", exefs_offset);
-        INFO_LOG(LOADER, "ExeFS size:      0x%08X", exefs_size);
+        LOG_DEBUG(Loader, "ExeFS size:      0x%08X", exefs_size);
        file.Seek(exefs_offset + ncch_offset, 0);
        file.ReadBytes(&exefs_header, sizeof(ExeFs_Header));
@@ -243,7 +243,7 @@ ResultStatus AppLoader_NCCH::Load() {
        return ResultStatus::Success;
    } else {
-        ERROR_LOG(LOADER, "Unable to read file %s!", filename.c_str());
+        LOG_ERROR(Loader, "Unable to read file %s!", filename.c_str());
    }
    return ResultStatus::Error;
 }
@@ -297,8 +297,8 @@ ResultStatus AppLoader_NCCH::ReadRomFS(std::vector<u8>& buffer) const {
            u32 romfs_offset = ncch_offset + (ncch_header.romfs_offset * kBlockSize) + 0x1000;
            u32 romfs_size = (ncch_header.romfs_size * kBlockSize) - 0x1000;
-            INFO_LOG(LOADER, "RomFS offset:    0x%08X", romfs_offset);
+            LOG_DEBUG(Loader, "RomFS offset:    0x%08X", romfs_offset);
-            INFO_LOG(LOADER, "RomFS size:      0x%08X", romfs_size);
+            LOG_DEBUG(Loader, "RomFS size:      0x%08X", romfs_size);
            buffer.resize(romfs_size);
@@ -307,12 +307,16 @@ ResultStatus AppLoader_NCCH::ReadRomFS(std::vector<u8>& buffer) const {
            return ResultStatus::Success;
        }
-        NOTICE_LOG(LOADER, "RomFS unused");
+        LOG_DEBUG(Loader, "NCCH has no RomFS");
        return ResultStatus::ErrorNotUsed;
    } else {
-        ERROR_LOG(LOADER, "Unable to read file %s!", filename.c_str());
+        LOG_ERROR(Loader, "Unable to read file %s!", filename.c_str());
    }
    return ResultStatus::Error;
 }
+u64 AppLoader_NCCH::GetProgramId() const {
+    return *reinterpret_cast<u64 const*>(&ncch_header.program_id[0]);
+}
 } // namespace Loader
diff --git a/src/core/loader/ncch.h b/src/core/loader/ncch.h
index f40a258b7..2fe2a7d82 100644
--- a/src/core/loader/ncch.h
+++ b/src/core/loader/ncch.h
@@ -191,6 +191,12 @@ public:
     */
    ResultStatus ReadRomFS(std::vector<u8>& buffer) const override;
+    /*
+     * Gets the program id from the NCCH header
+     * @return u64 Program id
+     */
+    u64 GetProgramId() const;
 private:
    /**
@@ -215,7 +221,7 @@ private:
    u32             entry_point;
    u32             ncch_offset; // Offset to NCCH header, can be 0 or after NCSD header
    u32             exefs_offset;
-    
    NCCH_Header     ncch_header;
    ExeFs_Header    exefs_header;
    ExHeader_Header exheader_header;
diff --git a/src/core/mem_map.cpp b/src/core/mem_map.cpp
index cf12f24d9..d1c44ed24 100644
--- a/src/core/mem_map.cpp
+++ b/src/core/mem_map.cpp
@@ -11,38 +11,38 @@
 namespace Memory {
-u8*    g_base                   = NULL;         ///< The base pointer to the auto-mirrored arena.
+u8* g_base                      = nullptr;   ///< The base pointer to the auto-mirrored arena.
-MemArena g_arena;                               ///< The MemArena class
+static MemArena arena;                       ///< The MemArena class
-u8* g_exefs_code                = NULL;         ///< ExeFS:/.code is loaded here
+u8* g_exefs_code                = nullptr;   ///< ExeFS:/.code is loaded here
-u8* g_system_mem                = NULL;         ///< System memory
+u8* g_system_mem                = nullptr;   ///< System memory
-u8* g_heap                      = NULL;         ///< Application heap (main memory)
+u8* g_heap                      = nullptr;   ///< Application heap (main memory)
-u8* g_heap_gsp                  = NULL;         ///< GSP heap (main memory)
+u8* g_heap_linear               = nullptr;   ///< Linear heap
-u8* g_vram                      = NULL;         ///< Video memory (VRAM) pointer
+u8* g_vram                      = nullptr;   ///< Video memory (VRAM) pointer
-u8* g_shared_mem                = NULL;         ///< Shared memory
+u8* g_shared_mem                = nullptr;   ///< Shared memory
-u8* g_kernel_mem;                               ///< Kernel memory
+u8* g_kernel_mem;                              ///< Kernel memory
-u8* g_physical_bootrom          = NULL;         ///< Bootrom physical memory
+static u8* physical_bootrom     = nullptr;   ///< Bootrom physical memory
-u8* g_uncached_bootrom          = NULL;
+static u8* uncached_bootrom     = nullptr;
-u8* g_physical_exefs_code       = NULL;         ///< Phsical ExeFS:/.code is loaded here
+static u8* physical_exefs_code  = nullptr;   ///< Phsical ExeFS:/.code is loaded here
-u8* g_physical_system_mem       = NULL;         ///< System physical memory
+static u8* physical_system_mem  = nullptr;   ///< System physical memory
-u8* g_physical_fcram            = NULL;         ///< Main physical memory (FCRAM)
+static u8* physical_fcram       = nullptr;   ///< Main physical memory (FCRAM)
-u8* g_physical_heap_gsp         = NULL;         ///< GSP heap physical memory
+static u8* physical_heap_gsp    = nullptr;   ///< GSP heap physical memory
-u8* g_physical_vram             = NULL;         ///< Video physical memory (VRAM)
+static u8* physical_vram        = nullptr;   ///< Video physical memory (VRAM)
-u8* g_physical_shared_mem       = NULL;         ///< Physical shared memory
+static u8* physical_shared_mem  = nullptr;   ///< Physical shared memory
-u8* g_physical_kernel_mem;                      ///< Kernel memory
+static u8* physical_kernel_mem;              ///< Kernel memory
 // We don't declare the IO region in here since its handled by other means.
 static MemoryView g_views[] = {
-    {&g_exefs_code, &g_physical_exefs_code, EXEFS_CODE_VADDR,       EXEFS_CODE_SIZE,    0},
+    {&g_exefs_code,     &physical_exefs_code,   EXEFS_CODE_VADDR,       EXEFS_CODE_SIZE,    0},
-    {&g_vram,       &g_physical_vram,       VRAM_VADDR,             VRAM_SIZE,          0},
+    {&g_vram,           &physical_vram,         VRAM_VADDR,             VRAM_SIZE,          0},
-    {&g_heap,       &g_physical_fcram,      HEAP_VADDR,             HEAP_SIZE,          MV_IS_PRIMARY_RAM},
+    {&g_heap,           &physical_fcram,        HEAP_VADDR,             HEAP_SIZE,          MV_IS_PRIMARY_RAM},
-    {&g_shared_mem, &g_physical_shared_mem, SHARED_MEMORY_VADDR,    SHARED_MEMORY_SIZE, 0},
+    {&g_shared_mem,     &physical_shared_mem,   SHARED_MEMORY_VADDR,    SHARED_MEMORY_SIZE, 0},
-    {&g_system_mem, &g_physical_system_mem, SYSTEM_MEMORY_VADDR,    SYSTEM_MEMORY_SIZE,    0},
+    {&g_system_mem,     &physical_system_mem,   SYSTEM_MEMORY_VADDR,    SYSTEM_MEMORY_SIZE, 0},
-    {&g_kernel_mem, &g_physical_kernel_mem, KERNEL_MEMORY_VADDR,    KERNEL_MEMORY_SIZE, 0},
+    {&g_kernel_mem,     &physical_kernel_mem,   KERNEL_MEMORY_VADDR,    KERNEL_MEMORY_SIZE, 0},
-    {&g_heap_gsp,   &g_physical_heap_gsp,   HEAP_GSP_VADDR,         HEAP_GSP_SIZE,      0},
+    {&g_heap_linear,    &physical_heap_gsp,     HEAP_LINEAR_VADDR,      HEAP_LINEAR_SIZE,   0},
 };
 /*static MemoryView views[] =
@@ -69,20 +69,20 @@ void Init() {
            g_views[i].size = FCRAM_SIZE;
    }
-    g_base = MemoryMap_Setup(g_views, kNumMemViews, flags, &g_arena);
+    g_base = MemoryMap_Setup(g_views, kNumMemViews, flags, &arena);
-    NOTICE_LOG(MEMMAP, "initialized OK, RAM at %p (mirror at 0 @ %p)", g_heap,
+    LOG_DEBUG(HW_Memory, "initialized OK, RAM at %p (mirror at 0 @ %p)", g_heap,
-        g_physical_fcram);
+        physical_fcram);
 }
 void Shutdown() {
    u32 flags = 0;
-    MemoryMap_Shutdown(g_views, kNumMemViews, flags, &g_arena);
+    MemoryMap_Shutdown(g_views, kNumMemViews, flags, &arena);
-    g_arena.ReleaseSpace();
+    arena.ReleaseSpace();
-    g_base = NULL;
+    g_base = nullptr;
-    NOTICE_LOG(MEMMAP, "shutdown OK");
+    LOG_DEBUG(HW_Memory, "shutdown OK");
 }
 } // namespace
diff --git a/src/core/mem_map.h b/src/core/mem_map.h
index eed445046..7b750f848 100644
--- a/src/core/mem_map.h
+++ b/src/core/mem_map.h
@@ -16,10 +16,9 @@ typedef u32 PAddr; ///< Represents a pointer in the physical address space.
 ////////////////////////////////////////////////////////////////////////////////////////////////////
-enum {
+enum : u32 {
    BOOTROM_SIZE            = 0x00010000,   ///< Bootrom (super secret code/data @ 0x8000) size
    MPCORE_PRIV_SIZE        = 0x00002000,   ///< MPCore private memory region size
-    DSP_SIZE                = 0x00080000,   ///< DSP memory size
    AXI_WRAM_SIZE           = 0x00080000,   ///< AXI WRAM size
    FCRAM_SIZE              = 0x08000000,   ///< FCRAM size
@@ -27,47 +26,42 @@ enum {
    FCRAM_PADDR_END         = (FCRAM_PADDR + FCRAM_SIZE),       ///< FCRAM end of physical space
    FCRAM_VADDR             = 0x08000000,                       ///< FCRAM virtual address
    FCRAM_VADDR_END         = (FCRAM_VADDR + FCRAM_SIZE),       ///< FCRAM end of virtual space
-    FCRAM_MASK              = (FCRAM_SIZE - 1),                 ///< FCRAM mask
    SHARED_MEMORY_SIZE      = 0x04000000,   ///< Shared memory size
    SHARED_MEMORY_VADDR     = 0x10000000,   ///< Shared memory
    SHARED_MEMORY_VADDR_END = (SHARED_MEMORY_VADDR + SHARED_MEMORY_SIZE),
-    SHARED_MEMORY_MASK      = (SHARED_MEMORY_SIZE - 1),
+    DSP_MEMORY_SIZE         = 0x00080000,   ///< DSP memory size
+    DSP_MEMORY_VADDR        = 0x1FF00000,   ///< DSP memory virtual address
    CONFIG_MEMORY_SIZE      = 0x00001000,   ///< Configuration memory size
    CONFIG_MEMORY_VADDR     = 0x1FF80000,   ///< Configuration memory virtual address
    CONFIG_MEMORY_VADDR_END = (CONFIG_MEMORY_VADDR + CONFIG_MEMORY_SIZE),
-    CONFIG_MEMORY_MASK      = (CONFIG_MEMORY_SIZE - 1),
    KERNEL_MEMORY_SIZE      = 0x00001000,   ///< Kernel memory size
    KERNEL_MEMORY_VADDR     = 0xFFFF0000,   ///< Kernel memory where the kthread objects etc are
    KERNEL_MEMORY_VADDR_END = (KERNEL_MEMORY_VADDR + KERNEL_MEMORY_SIZE),
-    KERNEL_MEMORY_MASK      = (KERNEL_MEMORY_SIZE - 1),
    EXEFS_CODE_SIZE         = 0x03F00000,
    EXEFS_CODE_VADDR        = 0x00100000,   ///< ExeFS:/.code is loaded here
    EXEFS_CODE_VADDR_END    = (EXEFS_CODE_VADDR + EXEFS_CODE_SIZE),
-    EXEFS_CODE_MASK         = 0x03FFFFFF,
    // Region of FCRAM used by system
    SYSTEM_MEMORY_SIZE      = 0x02C00000,   ///< 44MB
    SYSTEM_MEMORY_VADDR     = 0x04000000,
    SYSTEM_MEMORY_VADDR_END = (SYSTEM_MEMORY_VADDR + SYSTEM_MEMORY_SIZE),
-    SYSTEM_MEMORY_MASK      = 0x03FFFFFF,
    HEAP_SIZE               = FCRAM_SIZE,   ///< Application heap size
    //HEAP_PADDR              = HEAP_GSP_SIZE,
    //HEAP_PADDR_END          = (HEAP_PADDR + HEAP_SIZE),
    HEAP_VADDR              = 0x08000000,
    HEAP_VADDR_END          = (HEAP_VADDR + HEAP_SIZE),
-    HEAP_MASK               = (HEAP_SIZE - 1),
-    HEAP_GSP_SIZE           = 0x02000000,   ///< GSP heap size... TODO: Define correctly?
+    HEAP_LINEAR_SIZE        = 0x08000000,   ///< Linear heap size... TODO: Define correctly?
-    HEAP_GSP_VADDR          = 0x14000000,
+    HEAP_LINEAR_VADDR       = 0x14000000,
-    HEAP_GSP_VADDR_END      = (HEAP_GSP_VADDR + HEAP_GSP_SIZE),
+    HEAP_LINEAR_VADDR_END   = (HEAP_LINEAR_VADDR + HEAP_LINEAR_SIZE),
-    HEAP_GSP_PADDR          = 0x00000000,
+    HEAP_LINEAR_PADDR       = 0x00000000,
-    HEAP_GSP_PADDR_END      = (HEAP_GSP_PADDR + HEAP_GSP_SIZE),
+    HEAP_LINEAR_PADDR_END   = (HEAP_LINEAR_PADDR + HEAP_LINEAR_SIZE),
-    HEAP_GSP_MASK           = (HEAP_GSP_SIZE - 1),
    HARDWARE_IO_SIZE        = 0x01000000,
    HARDWARE_IO_PADDR       = 0x10000000,                       ///< IO physical address start
@@ -80,12 +74,10 @@ enum {
    VRAM_VADDR              = 0x1F000000,
    VRAM_PADDR_END          = (VRAM_PADDR + VRAM_SIZE),
    VRAM_VADDR_END          = (VRAM_VADDR + VRAM_SIZE),
-    VRAM_MASK               = 0x007FFFFF,
    SCRATCHPAD_SIZE         = 0x00004000,   ///< Typical stack size - TODO: Read from exheader
    SCRATCHPAD_VADDR_END    = 0x10000000,
    SCRATCHPAD_VADDR        = (SCRATCHPAD_VADDR_END - SCRATCHPAD_SIZE), ///< Stack space
-    SCRATCHPAD_MASK         = (SCRATCHPAD_SIZE - 1),            ///< Scratchpad memory mask
 };
 ////////////////////////////////////////////////////////////////////////////////////////////////////
@@ -120,7 +112,7 @@ extern u8 *g_base;
 // These are guaranteed to point to "low memory" addresses (sub-32-bit).
 // 64-bit: Pointers to low-mem (sub-0x10000000) mirror
 // 32-bit: Same as the corresponding physical/virtual pointers.
-extern u8* g_heap_gsp;      ///< GSP heap (main memory)
+extern u8* g_heap_linear;   ///< Linear heap (main memory)
 extern u8* g_heap;          ///< Application heap (main memory)
 extern u8* g_vram;          ///< Video memory (VRAM)
 extern u8* g_shared_mem;    ///< Shared memory
@@ -147,6 +139,7 @@ u32 Read16_ZX(VAddr addr);
 void Write8(VAddr addr, u8 data);
 void Write16(VAddr addr, u16 data);
 void Write32(VAddr addr, u32 data);
+void Write64(VAddr addr, u64 data);
 void WriteBlock(VAddr addr, const u8* data, size_t size);
@@ -156,7 +149,7 @@ u8* GetPointer(VAddr virtual_address);
 * Maps a block of memory on the heap
 * @param size Size of block in bytes
 * @param operation Memory map operation type
- * @param flags Memory allocation flags
+ * @param permissions Memory allocation permissions
 */
 u32 MapBlock_Heap(u32 size, u32 operation, u32 permissions);
@@ -166,7 +159,7 @@ u32 MapBlock_Heap(u32 size, u32 operation, u32 permissions);
 * @param operation Memory map operation type
 * @param permissions Control memory permissions
 */
-u32 MapBlock_HeapGSP(u32 size, u32 operation, u32 permissions);
+u32 MapBlock_HeapLinear(u32 size, u32 operation, u32 permissions);
 inline const char* GetCharPointer(const VAddr address) {
    return (const char *)GetPointer(address);
diff --git a/src/core/mem_map_funcs.cpp b/src/core/mem_map_funcs.cpp
index 90951812b..7f7e77233 100644
--- a/src/core/mem_map_funcs.cpp
+++ b/src/core/mem_map_funcs.cpp
@@ -12,9 +12,9 @@
 namespace Memory {
-std::map<u32, MemoryBlock> g_heap_map;
+static std::map<u32, MemoryBlock> heap_map;
-std::map<u32, MemoryBlock> g_heap_gsp_map;
+static std::map<u32, MemoryBlock> heap_linear_map;
-std::map<u32, MemoryBlock> g_shared_map;
+static std::map<u32, MemoryBlock> shared_map;
 /// Convert a physical address to virtual address
 VAddr PhysicalToVirtualAddress(const PAddr addr) {
@@ -28,7 +28,7 @@ VAddr PhysicalToVirtualAddress(const PAddr addr) {
        return addr - FCRAM_PADDR + FCRAM_VADDR;
    }
-    ERROR_LOG(MEMMAP, "Unknown physical address @ 0x%08x", addr);
+    LOG_ERROR(HW_Memory, "Unknown physical address @ 0x%08x", addr);
    return addr;
 }
@@ -44,7 +44,7 @@ PAddr VirtualToPhysicalAddress(const VAddr addr) {
        return addr - FCRAM_VADDR + FCRAM_PADDR;
    }
-    ERROR_LOG(MEMMAP, "Unknown virtual address @ 0x%08x", addr);
+    LOG_ERROR(HW_Memory, "Unknown virtual address @ 0x%08x", addr);
    return addr;
 }
@@ -56,7 +56,7 @@ inline void Read(T &var, const VAddr vaddr) {
    // Kernel memory command buffer
    if (vaddr >= KERNEL_MEMORY_VADDR && vaddr < KERNEL_MEMORY_VADDR_END) {
-        var = *((const T*)&g_kernel_mem[vaddr & KERNEL_MEMORY_MASK]);
+        var = *((const T*)&g_kernel_mem[vaddr - KERNEL_MEMORY_VADDR]);
    // Hardware I/O register reads
    // 0x10XXXXXX- is physical address space, 0x1EXXXXXX is virtual address space
@@ -65,23 +65,23 @@ inline void Read(T &var, const VAddr vaddr) {
    // ExeFS:/.code is loaded here
    } else if ((vaddr >= EXEFS_CODE_VADDR)  && (vaddr < EXEFS_CODE_VADDR_END)) {
-        var = *((const T*)&g_exefs_code[vaddr & EXEFS_CODE_MASK]);
+        var = *((const T*)&g_exefs_code[vaddr - EXEFS_CODE_VADDR]);
-    // FCRAM - GSP heap
+    // FCRAM - linear heap
-    } else if ((vaddr >= HEAP_GSP_VADDR) && (vaddr < HEAP_GSP_VADDR_END)) {
+    } else if ((vaddr >= HEAP_LINEAR_VADDR) && (vaddr < HEAP_LINEAR_VADDR_END)) {
-        var = *((const T*)&g_heap_gsp[vaddr & HEAP_GSP_MASK]);
+        var = *((const T*)&g_heap_linear[vaddr - HEAP_LINEAR_VADDR]);
    // FCRAM - application heap
    } else if ((vaddr >= HEAP_VADDR)  && (vaddr < HEAP_VADDR_END)) {
-        var = *((const T*)&g_heap[vaddr & HEAP_MASK]);
+        var = *((const T*)&g_heap[vaddr - HEAP_VADDR]);
    // Shared memory
    } else if ((vaddr >= SHARED_MEMORY_VADDR)  && (vaddr < SHARED_MEMORY_VADDR_END)) {
-        var = *((const T*)&g_shared_mem[vaddr & SHARED_MEMORY_MASK]);
+        var = *((const T*)&g_shared_mem[vaddr - SHARED_MEMORY_VADDR]);
    // System memory
    } else if ((vaddr >= SYSTEM_MEMORY_VADDR)  && (vaddr < SYSTEM_MEMORY_VADDR_END)) {
-        var = *((const T*)&g_system_mem[vaddr & SYSTEM_MEMORY_MASK]);
+        var = *((const T*)&g_system_mem[vaddr - SYSTEM_MEMORY_VADDR]);
    // Config memory
    } else if ((vaddr >= CONFIG_MEMORY_VADDR)  && (vaddr < CONFIG_MEMORY_VADDR_END)) {
@@ -89,10 +89,10 @@ inline void Read(T &var, const VAddr vaddr) {
    // VRAM
    } else if ((vaddr >= VRAM_VADDR)  && (vaddr < VRAM_VADDR_END)) {
-        var = *((const T*)&g_vram[vaddr & VRAM_MASK]);
+        var = *((const T*)&g_vram[vaddr - VRAM_VADDR]);
    } else {
-        ERROR_LOG(MEMMAP, "unknown Read%d @ 0x%08X", sizeof(var) * 8, vaddr);
+        LOG_ERROR(HW_Memory, "unknown Read%lu @ 0x%08X", sizeof(var) * 8, vaddr);
    }
 }
@@ -101,7 +101,7 @@ inline void Write(const VAddr vaddr, const T data) {
    // Kernel memory command buffer
    if (vaddr >= KERNEL_MEMORY_VADDR && vaddr < KERNEL_MEMORY_VADDR_END) {
-        *(T*)&g_kernel_mem[vaddr & KERNEL_MEMORY_MASK] = data;
+        *(T*)&g_kernel_mem[vaddr - KERNEL_MEMORY_VADDR] = data;
    // Hardware I/O register writes
    // 0x10XXXXXX- is physical address space, 0x1EXXXXXX is virtual address space
@@ -110,27 +110,27 @@ inline void Write(const VAddr vaddr, const T data) {
    // ExeFS:/.code is loaded here
    } else if ((vaddr >= EXEFS_CODE_VADDR)  && (vaddr < EXEFS_CODE_VADDR_END)) {
-        *(T*)&g_exefs_code[vaddr & EXEFS_CODE_MASK] = data;
+        *(T*)&g_exefs_code[vaddr - EXEFS_CODE_VADDR] = data;
-    // FCRAM - GSP heap
+    // FCRAM - linear heap
-    } else if ((vaddr >= HEAP_GSP_VADDR)  && (vaddr < HEAP_GSP_VADDR_END)) {
+    } else if ((vaddr >= HEAP_LINEAR_VADDR)  && (vaddr < HEAP_LINEAR_VADDR_END)) {
-        *(T*)&g_heap_gsp[vaddr & HEAP_GSP_MASK] = data;
+        *(T*)&g_heap_linear[vaddr - HEAP_LINEAR_VADDR] = data;
    // FCRAM - application heap
    } else if ((vaddr >= HEAP_VADDR)  && (vaddr < HEAP_VADDR_END)) {
-        *(T*)&g_heap[vaddr & HEAP_MASK] = data;
+        *(T*)&g_heap[vaddr - HEAP_VADDR] = data;
    // Shared memory
    } else if ((vaddr >= SHARED_MEMORY_VADDR)  && (vaddr < SHARED_MEMORY_VADDR_END)) {
-        *(T*)&g_shared_mem[vaddr & SHARED_MEMORY_MASK] = data;
+        *(T*)&g_shared_mem[vaddr - SHARED_MEMORY_VADDR] = data;
    // System memory
    } else if ((vaddr >= SYSTEM_MEMORY_VADDR)  && (vaddr < SYSTEM_MEMORY_VADDR_END)) {
-         *(T*)&g_system_mem[vaddr & SYSTEM_MEMORY_MASK] = data;
+        *(T*)&g_system_mem[vaddr - SYSTEM_MEMORY_VADDR] = data;
    // VRAM
    } else if ((vaddr >= VRAM_VADDR)  && (vaddr < VRAM_VADDR_END)) {
-        *(T*)&g_vram[vaddr & VRAM_MASK] = data;
+        *(T*)&g_vram[vaddr - VRAM_VADDR] = data;
    //} else if ((vaddr & 0xFFF00000) == 0x1FF00000) {
    //    _assert_msg_(MEMMAP, false, "umimplemented write to DSP memory");
@@ -141,41 +141,41 @@ inline void Write(const VAddr vaddr, const T data) {
    // Error out...
    } else {
-        ERROR_LOG(MEMMAP, "unknown Write%d 0x%08X @ 0x%08X", sizeof(data) * 8, data, vaddr);
+        LOG_ERROR(HW_Memory, "unknown Write%lu 0x%08X @ 0x%08X", sizeof(data) * 8, (u32)data, vaddr);
    }
 }
 u8 *GetPointer(const VAddr vaddr) {
    // Kernel memory command buffer
    if (vaddr >= KERNEL_MEMORY_VADDR && vaddr < KERNEL_MEMORY_VADDR_END) {
-        return g_kernel_mem + (vaddr & KERNEL_MEMORY_MASK);
+        return g_kernel_mem + (vaddr - KERNEL_MEMORY_VADDR);
    // ExeFS:/.code is loaded here
    } else if ((vaddr >= EXEFS_CODE_VADDR)  && (vaddr < EXEFS_CODE_VADDR_END)) {
-        return g_exefs_code + (vaddr & EXEFS_CODE_MASK);
+        return g_exefs_code + (vaddr - EXEFS_CODE_VADDR);
-    // FCRAM - GSP heap
+    // FCRAM - linear heap
-    } else if ((vaddr >= HEAP_GSP_VADDR)  && (vaddr < HEAP_GSP_VADDR_END)) {
+    } else if ((vaddr >= HEAP_LINEAR_VADDR)  && (vaddr < HEAP_LINEAR_VADDR_END)) {
-        return g_heap_gsp + (vaddr & HEAP_GSP_MASK);
+        return g_heap_linear + (vaddr - HEAP_LINEAR_VADDR);
    // FCRAM - application heap
    } else if ((vaddr >= HEAP_VADDR)  && (vaddr < HEAP_VADDR_END)) {
-        return g_heap + (vaddr & HEAP_MASK);
+        return g_heap + (vaddr - HEAP_VADDR);
    // Shared memory
    } else if ((vaddr >= SHARED_MEMORY_VADDR)  && (vaddr < SHARED_MEMORY_VADDR_END)) {
-        return g_shared_mem + (vaddr & SHARED_MEMORY_MASK);
+        return g_shared_mem + (vaddr - SHARED_MEMORY_VADDR);
    // System memory
    } else if ((vaddr >= SYSTEM_MEMORY_VADDR)  && (vaddr < SYSTEM_MEMORY_VADDR_END)) {
-         return g_system_mem + (vaddr & SYSTEM_MEMORY_MASK);
+        return g_system_mem + (vaddr - SYSTEM_MEMORY_VADDR);
    // VRAM
    } else if ((vaddr >= VRAM_VADDR)  && (vaddr < VRAM_VADDR_END)) {
-        return g_vram + (vaddr & VRAM_MASK);
+        return g_vram + (vaddr - VRAM_VADDR);
    } else {
-        ERROR_LOG(MEMMAP, "unknown GetPointer @ 0x%08x", vaddr);
+        LOG_ERROR(HW_Memory, "unknown GetPointer @ 0x%08x", vaddr);
        return 0;
    }
 }
@@ -194,34 +194,34 @@ u32 MapBlock_Heap(u32 size, u32 operation, u32 permissions) {
    block.operation     = operation;
    block.permissions   = permissions;
-    if (g_heap_map.size() > 0) {
+    if (heap_map.size() > 0) {
-        const MemoryBlock last_block = g_heap_map.rbegin()->second;
+        const MemoryBlock last_block = heap_map.rbegin()->second;
        block.address = last_block.address + last_block.size;
    }
-    g_heap_map[block.GetVirtualAddress()] = block;
+    heap_map[block.GetVirtualAddress()] = block;
    return block.GetVirtualAddress();
 }
 /**
- * Maps a block of memory on the GSP heap
+ * Maps a block of memory on the linear heap
 * @param size Size of block in bytes
 * @param operation Memory map operation type
 * @param flags Memory allocation flags
 */
-u32 MapBlock_HeapGSP(u32 size, u32 operation, u32 permissions) {
+u32 MapBlock_HeapLinear(u32 size, u32 operation, u32 permissions) {
    MemoryBlock block;
-    block.base_address  = HEAP_GSP_VADDR;
+    block.base_address  = HEAP_LINEAR_VADDR;
    block.size          = size;
    block.operation     = operation;
    block.permissions   = permissions;
-    if (g_heap_gsp_map.size() > 0) {
+    if (heap_linear_map.size() > 0) {
-        const MemoryBlock last_block = g_heap_gsp_map.rbegin()->second;
+        const MemoryBlock last_block = heap_linear_map.rbegin()->second;
        block.address = last_block.address + last_block.size;
    }
-    g_heap_gsp_map[block.GetVirtualAddress()] = block;
+    heap_linear_map[block.GetVirtualAddress()] = block;
    return block.GetVirtualAddress();
 }
@@ -239,7 +239,7 @@ u16 Read16(const VAddr addr) {
    // Check for 16-bit unaligned memory reads...
    if (addr & 1) {
        // TODO(bunnei): Implement 16-bit unaligned memory reads
-        ERROR_LOG(MEMMAP, "16-bit unaligned memory reads are not implemented!");
+        LOG_ERROR(HW_Memory, "16-bit unaligned memory reads are not implemented!");
    }
    return (u16)data;
diff --git a/src/core/settings.h b/src/core/settings.h
index 6a6265e18..138ffc615 100644
--- a/src/core/settings.h
+++ b/src/core/settings.h
@@ -4,6 +4,8 @@
 #pragma once
+#include <string>
 namespace Settings {
 struct Values {
@@ -32,6 +34,8 @@ struct Values {
    // Data Storage
    bool use_virtual_sd;
+    std::string log_filter;
 } extern values;
 }
diff --git a/src/core/system.cpp b/src/core/system.cpp
index 43d0eef2c..2885ff45f 100644
--- a/src/core/system.cpp
+++ b/src/core/system.cpp
@@ -23,10 +23,10 @@ void Init(EmuWindow* emu_window) {
    Core::Init();
    Memory::Init();
    HW::Init();
+    Kernel::Init();
    HLE::Init();
    CoreTiming::Init();
    VideoCore::Init(emu_window);
-    Kernel::Init();
 }
 void RunLoopFor(int cycles) {
@@ -37,13 +37,13 @@ void RunLoopUntil(u64 global_cycles) {
 }
 void Shutdown() {
-    Core::Shutdown();
-    Memory::Shutdown();
-    HW::Shutdown();
-    HLE::Shutdown();
-    CoreTiming::Shutdown();
    VideoCore::Shutdown();
+    CoreTiming::Shutdown();
+    HLE::Shutdown();
    Kernel::Shutdown();
+    HW::Shutdown();
+    Memory::Shutdown();
+    Core::Shutdown();
 }
 } // namespace
diff --git a/src/core/system.h b/src/core/system.h
index 8f8ddf87b..2bc2edc75 100644
--- a/src/core/system.h
+++ b/src/core/system.h
@@ -11,16 +11,16 @@
 namespace System {
 // State of the full emulator
-typedef enum {
+enum State {
-        STATE_NULL = 0, ///< System is in null state, nothing initialized
+    STATE_NULL = 0, ///< System is in null state, nothing initialized
-        STATE_IDLE,             ///< System is in an initialized state, but not running
+    STATE_IDLE,     ///< System is in an initialized state, but not running
-        STATE_RUNNING,  ///< System is running
+    STATE_RUNNING,  ///< System is running
-        STATE_LOADING,  ///< System is loading a ROM
+    STATE_LOADING,  ///< System is loading a ROM
-        STATE_HALTED,   ///< System is halted (error)
+    STATE_HALTED,   ///< System is halted (error)
-        STATE_STALLED,  ///< System is stalled (unused)
+    STATE_STALLED,  ///< System is stalled (unused)
-        STATE_DEBUG,    ///< System is in a special debug mode (unused)
+    STATE_DEBUG,    ///< System is in a special debug mode (unused)
-        STATE_DIE               ///< System is shutting down
+    STATE_DIE       ///< System is shutting down
-} State;
+};
 extern volatile State g_state;
@@ -30,4 +30,4 @@ void RunLoopFor(int cycles);
 void RunLoopUntil(u64 global_cycles);
 void Shutdown();
-};
+}
diff --git a/src/video_core/clipper.cpp b/src/video_core/clipper.cpp
index 96d3dabe2..632fb959a 100644
--- a/src/video_core/clipper.cpp
+++ b/src/video_core/clipper.cpp
@@ -157,12 +157,12 @@ void ProcessTriangle(OutputVertex &v0, OutputVertex &v1, OutputVertex &v2) {
        InitScreenCoordinates(vtx2);
-        DEBUG_LOG(GPU,
+        LOG_TRACE(Render_Software,
                  "Triangle %lu/%lu (%lu buffer vertices) at position (%.3f, %.3f, %.3f, %.3f), "
-                  "(%.3lu, %.3f, %.3f, %.3f), (%.3f, %.3f, %.3f, %.3f) and "
+                  "(%.3f, %.3f, %.3f, %.3f), (%.3f, %.3f, %.3f, %.3f) and "
                  "screen position (%.2f, %.2f, %.2f), (%.2f, %.2f, %.2f), (%.2f, %.2f, %.2f)",
                  i,output_list.size(), buffer_vertices.size(),
-                  vtx0.pos.x.ToFloat32(), vtx0.pos.y.ToFloat32(), vtx0.pos.z.ToFloat32(), vtx0.pos.w.ToFloat32(),output_list.size(),
+                  vtx0.pos.x.ToFloat32(), vtx0.pos.y.ToFloat32(), vtx0.pos.z.ToFloat32(), vtx0.pos.w.ToFloat32(),
                  vtx1.pos.x.ToFloat32(), vtx1.pos.y.ToFloat32(), vtx1.pos.z.ToFloat32(), vtx1.pos.w.ToFloat32(),
                  vtx2.pos.x.ToFloat32(), vtx2.pos.y.ToFloat32(), vtx2.pos.z.ToFloat32(), vtx2.pos.w.ToFloat32(),
                  vtx0.screenpos.x.ToFloat32(), vtx0.screenpos.y.ToFloat32(), vtx0.screenpos.z.ToFloat32(),
diff --git a/src/video_core/command_processor.cpp b/src/video_core/command_processor.cpp
index 1ec727698..b74cd3261 100644
--- a/src/video_core/command_processor.cpp
+++ b/src/video_core/command_processor.cpp
@@ -8,6 +8,7 @@
 #include "pica.h"
 #include "primitive_assembly.h"
 #include "vertex_shader.h"
+#include "core/hle/service/gsp_gpu.h"
 #include "debug_utils/debug_utils.h"
@@ -34,15 +35,26 @@ static inline void WritePicaReg(u32 id, u32 value, u32 mask) {
    u32 old_value = registers[id];
    registers[id] = (old_value & ~mask) | (value & mask);
+    if (g_debug_context)
+        g_debug_context->OnEvent(DebugContext::Event::CommandLoaded, reinterpret_cast<void*>(&id));
    DebugUtils::OnPicaRegWrite(id, registers[id]);
    switch(id) {
+        // Trigger IRQ
+        case PICA_REG_INDEX(trigger_irq):
+            GSP_GPU::SignalInterrupt(GSP_GPU::InterruptId::P3D);
+            return;
        // It seems like these trigger vertex rendering
        case PICA_REG_INDEX(trigger_draw):
        case PICA_REG_INDEX(trigger_draw_indexed):
        {
            DebugUtils::DumpTevStageConfig(registers.GetTevStages());
+            if (g_debug_context)
+                g_debug_context->OnEvent(DebugContext::Event::IncomingPrimitiveBatch, nullptr);
            const auto& attribute_config = registers.vertex_attributes;
            const u8* const base_address = Memory::GetPointer(attribute_config.GetBaseAddress());
@@ -60,7 +72,7 @@ static inline void WritePicaReg(u32 id, u32 value, u32 mask) {
                const u8* load_address = base_address + loader_config.data_offset;
                // TODO: What happens if a loader overwrites a previous one's data?
-                for (int component = 0; component < loader_config.component_count; ++component) {
+                for (unsigned component = 0; component < loader_config.component_count; ++component) {
                    u32 attribute_index = loader_config.GetComponent(component);
                    vertex_attribute_sources[attribute_index] = load_address;
                    vertex_attribute_strides[attribute_index] = static_cast<u32>(loader_config.byte_count);
@@ -102,7 +114,7 @@ static inline void WritePicaReg(u32 id, u32 value, u32 mask) {
                                             (vertex_attribute_formats[i] == 2) ? *(s16*)srcdata :
                                                                                  *(float*)srcdata;
                        input.attr[i][comp] = float24::FromFloat32(srcval);
-                        DEBUG_LOG(GPU, "Loaded component %x of attribute %x for vertex %x (index %x) from 0x%08x + 0x%08lx + 0x%04lx: %f",
+                        LOG_TRACE(HW_GPU, "Loaded component %x of attribute %x for vertex %x (index %x) from 0x%08x + 0x%08lx + 0x%04lx: %f",
                                  comp, i, vertex, index,
                                  attribute_config.GetBaseAddress(),
                                  vertex_attribute_sources[i] - base_address,
@@ -132,6 +144,10 @@ static inline void WritePicaReg(u32 id, u32 value, u32 mask) {
                clipper_primitive_assembler.SubmitVertex(output, Clipper::ProcessTriangle);
            }
            geometry_dumper.Dump();
+            if (g_debug_context)
+                g_debug_context->OnEvent(DebugContext::Event::FinishedPrimitiveBatch, nullptr);
            break;
        }
@@ -160,7 +176,7 @@ static inline void WritePicaReg(u32 id, u32 value, u32 mask) {
                auto& uniform = VertexShader::GetFloatUniform(uniform_setup.index);
                if (uniform_setup.index > 95) {
-                    ERROR_LOG(GPU, "Invalid VS uniform index %d", (int)uniform_setup.index);
+                    LOG_ERROR(HW_GPU, "Invalid VS uniform index %d", (int)uniform_setup.index);
                    break;
                }
@@ -176,7 +192,7 @@ static inline void WritePicaReg(u32 id, u32 value, u32 mask) {
                    uniform.x = float24::FromRawFloat24(uniform_write_buffer[2] & 0xFFFFFF);
                }
-                DEBUG_LOG(GPU, "Set uniform %x to (%f %f %f %f)", (int)uniform_setup.index,
+                LOG_TRACE(HW_GPU, "Set uniform %x to (%f %f %f %f)", (int)uniform_setup.index,
                          uniform.x.ToFloat32(), uniform.y.ToFloat32(), uniform.z.ToFloat32(),
                          uniform.w.ToFloat32());
@@ -229,6 +245,9 @@ static inline void WritePicaReg(u32 id, u32 value, u32 mask) {
        default:
            break;
    }
+    if (g_debug_context)
+        g_debug_context->OnEvent(DebugContext::Event::CommandProcessed, reinterpret_cast<void*>(&id));
 }
 static std::ptrdiff_t ExecuteCommandBlock(const u32* first_command_word) {
@@ -259,8 +278,9 @@ static std::ptrdiff_t ExecuteCommandBlock(const u32* first_command_word) {
 void ProcessCommandList(const u32* list, u32 size) {
    u32* read_pointer = (u32*)list;
+    u32 list_length = size / sizeof(u32);
-    while (read_pointer < list + size) {
+    while (read_pointer < list + list_length) {
        read_pointer += ExecuteCommandBlock(read_pointer);
    }
 }
diff --git a/src/video_core/debug_utils/debug_utils.cpp b/src/video_core/debug_utils/debug_utils.cpp
index 22b8e9950..1a20f19ec 100644
--- a/src/video_core/debug_utils/debug_utils.cpp
+++ b/src/video_core/debug_utils/debug_utils.cpp
@@ -3,6 +3,8 @@
 // Refer to the license.txt file included.
 #include <algorithm>
+#include <condition_variable>
+#include <list>
 #include <map>
 #include <fstream>
 #include <mutex>
@@ -12,14 +14,56 @@
 #include <png.h>
 #endif
+#include "common/log.h"
 #include "common/file_util.h"
+#include "video_core/math.h"
 #include "video_core/pica.h"
 #include "debug_utils.h"
 namespace Pica {
+void DebugContext::OnEvent(Event event, void* data) {
+    if (!breakpoints[event].enabled)
+        return;
+    {
+        std::unique_lock<std::mutex> lock(breakpoint_mutex);
+        // TODO: Should stop the CPU thread here once we multithread emulation.
+        active_breakpoint = event;
+        at_breakpoint = true;
+        // Tell all observers that we hit a breakpoint
+        for (auto& breakpoint_observer : breakpoint_observers) {
+            breakpoint_observer->OnPicaBreakPointHit(event, data);
+        }
+        // Wait until another thread tells us to Resume()
+        resume_from_breakpoint.wait(lock, [&]{ return !at_breakpoint; });
+    }
+}
+void DebugContext::Resume() {
+    {
+        std::unique_lock<std::mutex> lock(breakpoint_mutex);
+        // Tell all observers that we are about to resume
+        for (auto& breakpoint_observer : breakpoint_observers) {
+            breakpoint_observer->OnPicaResume();
+        }
+        // Resume the waiting thread (i.e. OnEvent())
+        at_breakpoint = false;
+    }
+    resume_from_breakpoint.notify_one();
+}
+std::shared_ptr<DebugContext> g_debug_context; // TODO: Get rid of this global
 namespace DebugUtils {
 void GeometryDumper::AddTriangle(Vertex& v0, Vertex& v1, Vertex& v2) {
@@ -155,7 +199,7 @@ void DumpShader(const u32* binary_data, u32 binary_size, const u32* swizzle_data
    // This is put into a try-catch block to make sure we notice unknown configurations.
    std::vector<OutputRegisterInfo> output_info_table;
-        for (int i = 0; i < 7; ++i) {
+        for (unsigned i = 0; i < 7; ++i) {
            using OutputAttributes = Pica::Regs::VSOutputAttributes;
            // TODO: It's still unclear how the attribute components map to the register!
@@ -204,8 +248,8 @@ void DumpShader(const u32* binary_data, u32 binary_size, const u32* swizzle_data
                        it->component_mask = it->component_mask | component_mask;
                    }
                } catch (const std::out_of_range& ) {
-                    _dbg_assert_msg_(GPU, 0, "Unknown output attribute mapping");
+                    _dbg_assert_msg_(HW_GPU, 0, "Unknown output attribute mapping");
-                    ERROR_LOG(GPU, "Unknown output attribute mapping: %03x, %03x, %03x, %03x",
+                    LOG_ERROR(HW_GPU, "Unknown output attribute mapping: %03x, %03x, %03x, %03x",
                              (int)output_attributes[i].map_x.Value(),
                              (int)output_attributes[i].map_y.Value(),
                              (int)output_attributes[i].map_z.Value(),
@@ -265,7 +309,7 @@ static int is_pica_tracing = false;
 void StartPicaTracing()
 {
    if (is_pica_tracing) {
-        ERROR_LOG(GPU, "StartPicaTracing called even though tracing already running!");
+        LOG_WARNING(HW_GPU, "StartPicaTracing called even though tracing already running!");
        return;
    }
@@ -298,7 +342,7 @@ void OnPicaRegWrite(u32 id, u32 value)
 std::unique_ptr<PicaTrace> FinishPicaTracing()
 {
    if (!is_pica_tracing) {
-        ERROR_LOG(GPU, "FinishPicaTracing called even though tracing already running!");
+        LOG_WARNING(HW_GPU, "FinishPicaTracing called even though tracing isn't running!");
        return {};
    }
@@ -312,15 +356,51 @@ std::unique_ptr<PicaTrace> FinishPicaTracing()
    return std::move(ret);
 }
+const Math::Vec4<u8> LookupTexture(const u8* source, int x, int y, const TextureInfo& info) {
+    _dbg_assert_(Debug_GPU, info.format == Pica::Regs::TextureFormat::RGB8);
+    // Cf. rasterizer code for an explanation of this algorithm.
+    int texel_index_within_tile = 0;
+    for (int block_size_index = 0; block_size_index < 3; ++block_size_index) {
+        int sub_tile_width = 1 << block_size_index;
+        int sub_tile_height = 1 << block_size_index;
+        int sub_tile_index = (x & sub_tile_width) << block_size_index;
+        sub_tile_index += 2 * ((y & sub_tile_height) << block_size_index);
+        texel_index_within_tile += sub_tile_index;
+    }
+    const int block_width = 8;
+    const int block_height = 8;
+    int coarse_x = (x / block_width) * block_width;
+    int coarse_y = (y / block_height) * block_height;
+    const u8* source_ptr = source + coarse_x * block_height * 3 + coarse_y * info.stride + texel_index_within_tile * 3;
+    return { source_ptr[2], source_ptr[1], source_ptr[0], 255 };
+}
+TextureInfo TextureInfo::FromPicaRegister(const Regs::TextureConfig& config,
+                                          const Regs::TextureFormat& format)
+{
+    TextureInfo info;
+    info.address = config.GetPhysicalAddress();
+    info.width = config.width;
+    info.height = config.height;
+    info.format = format;
+    info.stride = Pica::Regs::BytesPerPixel(info.format) * info.width;
+    return info;
+}
 void DumpTexture(const Pica::Regs::TextureConfig& texture_config, u8* data) {
    // NOTE: Permanently enabling this just trashes hard disks for no reason.
    //       Hence, this is currently disabled.
    return;
 #ifndef HAVE_PNG
-        return;
+    return;
 #else
-        if (!data)
+    if (!data)
        return;
    // Write data to file
@@ -341,7 +421,7 @@ void DumpTexture(const Pica::Regs::TextureConfig& texture_config, u8* data) {
    // Initialize write structure
    png_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING, nullptr, nullptr, nullptr);
    if (png_ptr == nullptr) {
-        ERROR_LOG(GPU, "Could not allocate write struct\n");
+        LOG_ERROR(Debug_GPU, "Could not allocate write struct\n");
        goto finalise;
    }
@@ -349,13 +429,13 @@ void DumpTexture(const Pica::Regs::TextureConfig& texture_config, u8* data) {
    // Initialize info structure
    info_ptr = png_create_info_struct(png_ptr);
    if (info_ptr == nullptr) {
-        ERROR_LOG(GPU, "Could not allocate info struct\n");
+        LOG_ERROR(Debug_GPU, "Could not allocate info struct\n");
        goto finalise;
    }
    // Setup Exception handling
    if (setjmp(png_jmpbuf(png_ptr))) {
-        ERROR_LOG(GPU, "Error during png creation\n");
+        LOG_ERROR(Debug_GPU, "Error during png creation\n");
        goto finalise;
    }
@@ -375,34 +455,22 @@ void DumpTexture(const Pica::Regs::TextureConfig& texture_config, u8* data) {
    png_write_info(png_ptr, info_ptr);
    buf = new u8[row_stride * texture_config.height];
-    for (int y = 0; y < texture_config.height; ++y) {
+    for (unsigned y = 0; y < texture_config.height; ++y) {
-        for (int x = 0; x < texture_config.width; ++x) {
+        for (unsigned x = 0; x < texture_config.width; ++x) {
-            // Cf. rasterizer code for an explanation of this algorithm.
+            TextureInfo info;
-            int texel_index_within_tile = 0;
+            info.width = texture_config.width;
-            for (int block_size_index = 0; block_size_index < 3; ++block_size_index) {
+            info.height = texture_config.height;
-                int sub_tile_width = 1 << block_size_index;
+            info.stride = row_stride;
-                int sub_tile_height = 1 << block_size_index;
+            info.format = registers.texture0_format;
+            Math::Vec4<u8> texture_color = LookupTexture(data, x, y, info);
-                int sub_tile_index = (x & sub_tile_width) << block_size_index;
+            buf[3 * x + y * row_stride    ] = texture_color.r();
-                sub_tile_index += 2 * ((y & sub_tile_height) << block_size_index);
+            buf[3 * x + y * row_stride + 1] = texture_color.g();
-                texel_index_within_tile += sub_tile_index;
+            buf[3 * x + y * row_stride + 2] = texture_color.b();
-            }
-            const int block_width = 8;
-            const int block_height = 8;
-            int coarse_x = (x / block_width) * block_width;
-            int coarse_y = (y / block_height) * block_height;
-            u8* source_ptr = (u8*)data + coarse_x * block_height * 3 + coarse_y * row_stride + texel_index_within_tile * 3;
-            buf[3 * x + y * row_stride    ] = source_ptr[2];
-            buf[3 * x + y * row_stride + 1] = source_ptr[1];
-            buf[3 * x + y * row_stride + 2] = source_ptr[0];
        }
    }
    // Write image data
-    for (auto y = 0; y < texture_config.height; ++y)
+    for (unsigned y = 0; y < texture_config.height; ++y)
    {
        u8* row_ptr = (u8*)buf + y * row_stride;
        u8* ptr = row_ptr;
@@ -514,7 +582,7 @@ void DumpTevStageConfig(const std::array<Pica::Regs::TevStageConfig,6>& stages)
        stage_info += "Stage " + std::to_string(index) + ": " + GetColorCombinerStr(tev_stage) + "   " + GetAlphaCombinerStr(tev_stage) + "\n";
    }
-    DEBUG_LOG(GPU, "%s", stage_info.c_str());
+    LOG_TRACE(HW_GPU, "%s", stage_info.c_str());
 }
 } // namespace
diff --git a/src/video_core/debug_utils/debug_utils.h b/src/video_core/debug_utils/debug_utils.h
index 8b1499bf2..51f14f12f 100644
--- a/src/video_core/debug_utils/debug_utils.h
+++ b/src/video_core/debug_utils/debug_utils.h
@@ -5,13 +5,147 @@
 #pragma once
 #include <array>
+#include <condition_variable>
+#include <list>
+#include <map>
 #include <memory>
+#include <mutex>
 #include <vector>
+#include "video_core/math.h"
 #include "video_core/pica.h"
 namespace Pica {
+class DebugContext {
+public:
+    enum class Event {
+        FirstEvent = 0,
+        CommandLoaded = FirstEvent,
+        CommandProcessed,
+        IncomingPrimitiveBatch,
+        FinishedPrimitiveBatch,
+        NumEvents
+    };
+    /**
+     * Inherit from this class to be notified of events registered to some debug context.
+     * Most importantly this is used for our debugger GUI.
+     *
+     * To implement event handling, override the OnPicaBreakPointHit and OnPicaResume methods.
+     * @warning All BreakPointObservers need to be on the same thread to guarantee thread-safe state access
+     * @todo Evaluate an alternative interface, in which there is only one managing observer and multiple child observers running (by design) on the same thread.
+     */
+    class BreakPointObserver {
+    public:
+        /// Constructs the object such that it observes events of the given DebugContext.
+        BreakPointObserver(std::shared_ptr<DebugContext> debug_context) : context_weak(debug_context) {
+            std::unique_lock<std::mutex> lock(debug_context->breakpoint_mutex);
+            debug_context->breakpoint_observers.push_back(this);
+        }
+        virtual ~BreakPointObserver() {
+            auto context = context_weak.lock();
+            if (context) {
+                std::unique_lock<std::mutex> lock(context->breakpoint_mutex);
+                context->breakpoint_observers.remove(this);
+                // If we are the last observer to be destroyed, tell the debugger context that
+                // it is free to continue. In particular, this is required for a proper Citra
+                // shutdown, when the emulation thread is waiting at a breakpoint.
+                if (context->breakpoint_observers.empty())
+                    context->Resume();
+            }
+        }
+        /**
+         * Action to perform when a breakpoint was reached.
+         * @param event Type of event which triggered the breakpoint
+         * @param data Optional data pointer (if unused, this is a nullptr)
+         * @note This function will perform nothing unless it is overridden in the child class.
+         */
+        virtual void OnPicaBreakPointHit(Event, void*) {
+        }
+        /**
+         * Action to perform when emulation is resumed from a breakpoint.
+         * @note This function will perform nothing unless it is overridden in the child class.
+         */
+        virtual void OnPicaResume() {
+        }
+    protected:
+        /**
+         * Weak context pointer. This need not be valid, so when requesting a shared_ptr via
+         * context_weak.lock(), always compare the result against nullptr.
+         */
+        std::weak_ptr<DebugContext> context_weak;
+    };
+    /**
+     * Simple structure defining a breakpoint state
+     */
+    struct BreakPoint {
+        bool enabled = false;
+    };
+    /**
+     * Static constructor used to create a shared_ptr of a DebugContext.
+     */
+    static std::shared_ptr<DebugContext> Construct() {
+        return std::shared_ptr<DebugContext>(new DebugContext);
+    }
+    /**
+     * Used by the emulation core when a given event has happened. If a breakpoint has been set
+     * for this event, OnEvent calls the event handlers of the registered breakpoint observers.
+     * The current thread then is halted until Resume() is called from another thread (or until
+     * emulation is stopped).
+     * @param event Event which has happened
+     * @param data Optional data pointer (pass nullptr if unused). Needs to remain valid until Resume() is called.
+     */
+    void OnEvent(Event event, void* data);
+    /**
+     * Resume from the current breakpoint.
+     * @warning Calling this from the same thread that OnEvent was called in will cause a deadlock. Calling from any other thread is safe.
+     */
+    void Resume();
+    /**
+     * Delete all set breakpoints and resume emulation.
+     */
+    void ClearBreakpoints() {
+        breakpoints.clear();
+        Resume();
+    }
+    // TODO: Evaluate if access to these members should be hidden behind a public interface.
+    std::map<Event, BreakPoint> breakpoints;
+    Event active_breakpoint;
+    bool at_breakpoint = false;
+private:
+    /**
+     * Private default constructor to make sure people always construct this through Construct()
+     * instead.
+     */
+    DebugContext() = default;
+    /// Mutex protecting current breakpoint state and the observer list.
+    std::mutex breakpoint_mutex;
+    /// Used by OnEvent to wait for resumption.
+    std::condition_variable resume_from_breakpoint;
+    /// List of registered observers
+    std::list<BreakPointObserver*> breakpoint_observers;
+};
+extern std::shared_ptr<DebugContext> g_debug_context; // TODO: Get rid of this global
 namespace DebugUtils {
 // Simple utility class for dumping geometry data to an OBJ file
@@ -41,7 +175,7 @@ void DumpShader(const u32* binary_data, u32 binary_size, const u32* swizzle_data
 // Utility class to log Pica commands.
 struct PicaTrace {
    struct Write : public std::pair<u32,u32> {
-                Write(u32 id, u32 value) : std::pair<u32,u32>(id, value) {}
+        Write(u32 id, u32 value) : std::pair<u32,u32>(id, value) {}
        u32& Id() { return first; }
        const u32& Id() const { return first; }
@@ -57,6 +191,18 @@ bool IsPicaTracing();
 void OnPicaRegWrite(u32 id, u32 value);
 std::unique_ptr<PicaTrace> FinishPicaTracing();
+struct TextureInfo {
+    unsigned int address;
+    int width;
+    int height;
+    int stride;
+    Pica::Regs::TextureFormat format;
+    static TextureInfo FromPicaRegister(const Pica::Regs::TextureConfig& config,
+                                        const Pica::Regs::TextureFormat& format);
+};
+const Math::Vec4<u8> LookupTexture(const u8* source, int x, int y, const TextureInfo& info);
 void DumpTexture(const Pica::Regs::TextureConfig& texture_config, u8* data);
 void DumpTevStageConfig(const std::array<Pica::Regs::TevStageConfig,6>& stages);
diff --git a/src/video_core/gpu_debugger.h b/src/video_core/gpu_debugger.h
index 1242eb58f..16b1656bb 100644
--- a/src/video_core/gpu_debugger.h
+++ b/src/video_core/gpu_debugger.h
@@ -39,7 +39,7 @@ public:
        virtual void GXCommandProcessed(int total_command_count)
        {
            const GSP_GPU::Command& cmd = observed->ReadGXCommandHistory(total_command_count-1);
-            ERROR_LOG(GSP, "Received command: id=%x", (int)cmd.id.Value());
+            LOG_TRACE(Debug_GPU, "Received command: id=%x", (int)cmd.id.Value());
        }
    protected:
diff --git a/src/video_core/pica.h b/src/video_core/pica.h
index 5fe15a218..4c3791ad9 100644
--- a/src/video_core/pica.h
+++ b/src/video_core/pica.h
@@ -45,10 +45,16 @@ struct Regs {
 #define INSERT_PADDING_WORDS_HELPER2(x, y) INSERT_PADDING_WORDS_HELPER1(x, y)
 #define INSERT_PADDING_WORDS(num_words) u32 INSERT_PADDING_WORDS_HELPER2(pad, __LINE__)[(num_words)];
-    INSERT_PADDING_WORDS(0x41);
+    INSERT_PADDING_WORDS(0x10);
+    u32 trigger_irq;
+    INSERT_PADDING_WORDS(0x30);
    BitField<0, 24, u32> viewport_size_x;
    INSERT_PADDING_WORDS(0x1);
    BitField<0, 24, u32> viewport_size_y;
    INSERT_PADDING_WORDS(0x9);
@@ -109,8 +115,8 @@ struct Regs {
        u32 address;
-        u32 GetPhysicalAddress() {
+        u32 GetPhysicalAddress() const {
-            return DecodeAddressRegister(address) - Memory::FCRAM_PADDR + Memory::HEAP_GSP_VADDR;
+            return DecodeAddressRegister(address) - Memory::FCRAM_PADDR + Memory::HEAP_LINEAR_VADDR;
        }
        // texture1 and texture2 store the texture format directly after the address
@@ -130,7 +136,26 @@ struct Regs {
        // Seems like they are luminance formats and compressed textures.
    };
-    BitField<0, 1, u32> texturing_enable;
+    static unsigned BytesPerPixel(TextureFormat format) {
+        switch (format) {
+        case TextureFormat::RGBA8:
+            return 4;
+        case TextureFormat::RGB8:
+            return 3;
+        case TextureFormat::RGBA5551:
+        case TextureFormat::RGB565:
+        case TextureFormat::RGBA4:
+            return 2;
+        default:
+            // placeholder for yet unknown formats
+            return 1;
+        }
+    }
+    BitField< 0, 1, u32> texturing_enable;
    TextureConfig texture0;
    INSERT_PADDING_WORDS(0x8);
    BitField<0, 4, TextureFormat> texture0_format;
@@ -287,7 +312,7 @@ struct Regs {
        inline u32 GetBaseAddress() const {
            // TODO: Ugly, should fix PhysicalToVirtualAddress instead
-            return DecodeAddressRegister(base_address) - Memory::FCRAM_PADDR + Memory::HEAP_GSP_VADDR;
+            return DecodeAddressRegister(base_address) - Memory::FCRAM_PADDR + Memory::HEAP_LINEAR_VADDR;
        }
        // Descriptor for internal vertex attributes
@@ -517,10 +542,6 @@ struct Regs {
    static std::string GetCommandName(int index) {
        std::map<u32, std::string> map;
-        // TODO: MSVC does not support using offsetof() on non-static data members even though this
-        //       is technically allowed since C++11. Hence, this functionality is disabled until
-        //       MSVC properly supports it.
-        #ifndef _MSC_VER
        Regs regs;
        #define ADD_FIELD(name)                                                                               \
            do {                                                                                              \
@@ -529,6 +550,7 @@ struct Regs {
                    map.insert({i, #name + std::string("+") + std::to_string(i-PICA_REG_INDEX(name))});       \
            } while(false)
+        ADD_FIELD(trigger_irq);
        ADD_FIELD(viewport_size_x);
        ADD_FIELD(viewport_size_y);
        ADD_FIELD(viewport_depth_range);
@@ -557,7 +579,6 @@ struct Regs {
        ADD_FIELD(vs_swizzle_patterns);
        #undef ADD_FIELD
-        #endif // _MSC_VER
        // Return empty string if no match is found
        return map[index];
@@ -593,6 +614,7 @@ private:
 #ifndef _MSC_VER
 #define ASSERT_REG_POSITION(field_name, position) static_assert(offsetof(Regs, field_name) == position * 4, "Field "#field_name" has invalid position")
+ASSERT_REG_POSITION(trigger_irq, 0x10);
 ASSERT_REG_POSITION(viewport_size_x, 0x41);
 ASSERT_REG_POSITION(viewport_size_y, 0x43);
 ASSERT_REG_POSITION(viewport_depth_range, 0x4d);
diff --git a/src/video_core/primitive_assembly.cpp b/src/video_core/primitive_assembly.cpp
index dabf2d1a3..102693ed9 100644
--- a/src/video_core/primitive_assembly.cpp
+++ b/src/video_core/primitive_assembly.cpp
@@ -43,7 +43,7 @@ void PrimitiveAssembler<VertexType>::SubmitVertex(VertexType& vtx, TriangleHandl
            break;
        default:
-            ERROR_LOG(GPU, "Unknown triangle topology %x:", (int)topology);
+            LOG_ERROR(Render_Software, "Unknown triangle topology %x:", (int)topology);
            break;
    }
 }
diff --git a/src/video_core/rasterizer.cpp b/src/video_core/rasterizer.cpp
index a35f0c0d8..b7e04a560 100644
--- a/src/video_core/rasterizer.cpp
+++ b/src/video_core/rasterizer.cpp
@@ -252,7 +252,7 @@ void ProcessTriangle(const VertexShader::OutputVertex& v0,
                        return combiner_output.rgb();
                    default:
-                        ERROR_LOG(GPU, "Unknown color combiner source %d\n", (int)source);
+                        LOG_ERROR(HW_GPU, "Unknown color combiner source %d\n", (int)source);
                        return {};
                    }
                };
@@ -272,7 +272,7 @@ void ProcessTriangle(const VertexShader::OutputVertex& v0,
                        return combiner_output.a();
                    default:
-                        ERROR_LOG(GPU, "Unknown alpha combiner source %d\n", (int)source);
+                        LOG_ERROR(HW_GPU, "Unknown alpha combiner source %d\n", (int)source);
                        return 0;
                    }
                };
@@ -283,7 +283,7 @@ void ProcessTriangle(const VertexShader::OutputVertex& v0,
                    case ColorModifier::SourceColor:
                        return values;
                    default:
-                        ERROR_LOG(GPU, "Unknown color factor %d\n", (int)factor);
+                        LOG_ERROR(HW_GPU, "Unknown color factor %d\n", (int)factor);
                        return {};
                    }
                };
@@ -293,7 +293,7 @@ void ProcessTriangle(const VertexShader::OutputVertex& v0,
                    case AlphaModifier::SourceAlpha:
                        return value;
                    default:
-                        ERROR_LOG(GPU, "Unknown color factor %d\n", (int)factor);
+                        LOG_ERROR(HW_GPU, "Unknown color factor %d\n", (int)factor);
                        return 0;
                    }
                };
@@ -307,7 +307,7 @@ void ProcessTriangle(const VertexShader::OutputVertex& v0,
                        return ((input[0] * input[1]) / 255).Cast<u8>();
                    default:
-                        ERROR_LOG(GPU, "Unknown color combiner operation %d\n", (int)op);
+                        LOG_ERROR(HW_GPU, "Unknown color combiner operation %d\n", (int)op);
                        return {};
                    }
                };
@@ -321,7 +321,7 @@ void ProcessTriangle(const VertexShader::OutputVertex& v0,
                        return input[0] * input[1] / 255;
                    default:
-                        ERROR_LOG(GPU, "Unknown alpha combiner operation %d\n", (int)op);
+                        LOG_ERROR(HW_GPU, "Unknown alpha combiner operation %d\n", (int)op);
                        return 0;
                    }
                };
diff --git a/src/video_core/renderer_base.h b/src/video_core/renderer_base.h
index f1dbc9d17..bce402b88 100644
--- a/src/video_core/renderer_base.h
+++ b/src/video_core/renderer_base.h
@@ -25,7 +25,7 @@ public:
    /// Swap buffers (render frame)
    virtual void SwapBuffers() = 0;
-    /** 
+    /**
     * Set the emulator window to use for renderer
     * @param window EmuWindow handle to emulator window to use for rendering
     */
diff --git a/src/video_core/renderer_opengl/gl_shader_util.cpp b/src/video_core/renderer_opengl/gl_shader_util.cpp
index a0eb0418c..d0f82e6cd 100644
--- a/src/video_core/renderer_opengl/gl_shader_util.cpp
+++ b/src/video_core/renderer_opengl/gl_shader_util.cpp
@@ -20,9 +20,9 @@ GLuint LoadShaders(const char* vertex_shader, const char* fragment_shader) {
    int info_log_length;
    // Compile Vertex Shader
-    DEBUG_LOG(GPU, "Compiling vertex shader.");
+    LOG_DEBUG(Render_OpenGL, "Compiling vertex shader...");
-    glShaderSource(vertex_shader_id, 1, &vertex_shader, NULL);
+    glShaderSource(vertex_shader_id, 1, &vertex_shader, nullptr);
    glCompileShader(vertex_shader_id);
    // Check Vertex Shader
@@ -31,14 +31,18 @@ GLuint LoadShaders(const char* vertex_shader, const char* fragment_shader) {
    if (info_log_length > 1) {
        std::vector<char> vertex_shader_error(info_log_length);
-        glGetShaderInfoLog(vertex_shader_id, info_log_length, NULL, &vertex_shader_error[0]);
+        glGetShaderInfoLog(vertex_shader_id, info_log_length, nullptr, &vertex_shader_error[0]);
-        DEBUG_LOG(GPU, "%s", &vertex_shader_error[0]);
+        if (result) {
+            LOG_DEBUG(Render_OpenGL, "%s", &vertex_shader_error[0]);
+        } else {
+            LOG_ERROR(Render_OpenGL, "Error compiling vertex shader:\n%s", &vertex_shader_error[0]);
+        }
    }
    // Compile Fragment Shader
-    DEBUG_LOG(GPU, "Compiling fragment shader.");
+    LOG_DEBUG(Render_OpenGL, "Compiling fragment shader...");
-    glShaderSource(fragment_shader_id, 1, &fragment_shader, NULL);
+    glShaderSource(fragment_shader_id, 1, &fragment_shader, nullptr);
    glCompileShader(fragment_shader_id);
    // Check Fragment Shader
@@ -47,12 +51,16 @@ GLuint LoadShaders(const char* vertex_shader, const char* fragment_shader) {
    if (info_log_length > 1) {
        std::vector<char> fragment_shader_error(info_log_length);
-        glGetShaderInfoLog(fragment_shader_id, info_log_length, NULL, &fragment_shader_error[0]);
+        glGetShaderInfoLog(fragment_shader_id, info_log_length, nullptr, &fragment_shader_error[0]);
-        DEBUG_LOG(GPU, "%s", &fragment_shader_error[0]);
+        if (result) {
+            LOG_DEBUG(Render_OpenGL, "%s", &fragment_shader_error[0]);
+        } else {
+            LOG_ERROR(Render_OpenGL, "Error compiling fragment shader:\n%s", &fragment_shader_error[0]);
+        }
    }
    // Link the program
-    DEBUG_LOG(GPU, "Linking program.");
+    LOG_DEBUG(Render_OpenGL, "Linking program...");
    GLuint program_id = glCreateProgram();
    glAttachShader(program_id, vertex_shader_id);
@@ -65,8 +73,12 @@ GLuint LoadShaders(const char* vertex_shader, const char* fragment_shader) {
    if (info_log_length > 1) {
        std::vector<char> program_error(info_log_length);
-        glGetProgramInfoLog(program_id, info_log_length, NULL, &program_error[0]);
+        glGetProgramInfoLog(program_id, info_log_length, nullptr, &program_error[0]);
-        DEBUG_LOG(GPU, "%s", &program_error[0]);
+        if (result) {
+            LOG_DEBUG(Render_OpenGL, "%s", &program_error[0]);
+        } else {
+            LOG_ERROR(Render_OpenGL, "Error linking shader:\n%s", &program_error[0]);
+        }
    }
    glDeleteShader(vertex_shader_id);
diff --git a/src/video_core/renderer_opengl/renderer_opengl.cpp b/src/video_core/renderer_opengl/renderer_opengl.cpp
index 8483f79be..e2caeeb8f 100644
--- a/src/video_core/renderer_opengl/renderer_opengl.cpp
+++ b/src/video_core/renderer_opengl/renderer_opengl.cpp
@@ -61,7 +61,7 @@ void RendererOpenGL::SwapBuffers() {
    for(int i : {0, 1}) {
        const auto& framebuffer = GPU::g_regs.framebuffer_config[i];
-        if (textures[i].width != framebuffer.width || textures[i].height != framebuffer.height) {
+        if (textures[i].width != (GLsizei)framebuffer.width || textures[i].height != (GLsizei)framebuffer.height) {
            // Reallocate texture if the framebuffer size has changed.
            // This is expected to not happen very often and hence should not be a
            // performance problem.
@@ -90,7 +90,7 @@ void RendererOpenGL::LoadFBToActiveGLTexture(const GPU::Regs::FramebufferConfig&
    const VAddr framebuffer_vaddr = Memory::PhysicalToVirtualAddress(
        framebuffer.active_fb == 1 ? framebuffer.address_left2 : framebuffer.address_left1);
-    DEBUG_LOG(GPU, "0x%08x bytes from 0x%08x(%dx%d), fmt %x",
+    LOG_TRACE(Render_OpenGL, "0x%08x bytes from 0x%08x(%dx%d), fmt %x",
        framebuffer.stride * framebuffer.height,
        framebuffer_vaddr, (int)framebuffer.width,
        (int)framebuffer.height, (int)framebuffer.format);
@@ -98,15 +98,15 @@ void RendererOpenGL::LoadFBToActiveGLTexture(const GPU::Regs::FramebufferConfig&
    const u8* framebuffer_data = Memory::GetPointer(framebuffer_vaddr);
    // TODO: Handle other pixel formats
-    _dbg_assert_msg_(RENDER, framebuffer.color_format == GPU::Regs::PixelFormat::RGB8,
+    _dbg_assert_msg_(Render_OpenGL, framebuffer.color_format == GPU::Regs::PixelFormat::RGB8,
                     "Unsupported 3DS pixel format.");
    size_t pixel_stride = framebuffer.stride / 3;
    // OpenGL only supports specifying a stride in units of pixels, not bytes, unfortunately
-    _dbg_assert_(RENDER, pixel_stride * 3 == framebuffer.stride);
+    _dbg_assert_(Render_OpenGL, pixel_stride * 3 == framebuffer.stride);
    // Ensure no bad interactions with GL_UNPACK_ALIGNMENT, which by default
    // only allows rows to have a memory alignement of 4.
-    _dbg_assert_(RENDER, pixel_stride % 4 == 0);
+    _dbg_assert_(Render_OpenGL, pixel_stride % 4 == 0);
    glBindTexture(GL_TEXTURE_2D, texture.handle);
    glPixelStorei(GL_UNPACK_ROW_LENGTH, (GLint)pixel_stride);
@@ -191,7 +191,8 @@ void RendererOpenGL::DrawSingleScreenRotated(const TextureInfo& texture, float x
 * Draws the emulated screens to the emulator window.
 */
 void RendererOpenGL::DrawScreens() {
-    glViewport(0, 0, resolution_width, resolution_height);
+    auto viewport_extent = GetViewportExtent();
+    glViewport(viewport_extent.left, viewport_extent.top, viewport_extent.GetWidth(), viewport_extent.GetHeight()); // TODO: Or bottom?
    glClear(GL_COLOR_BUFFER_BIT);
    glUseProgram(program_id);
@@ -228,17 +229,45 @@ void RendererOpenGL::SetWindow(EmuWindow* window) {
    render_window = window;
 }
+MathUtil::Rectangle<unsigned> RendererOpenGL::GetViewportExtent() {
+    unsigned framebuffer_width;
+    unsigned framebuffer_height;
+    std::tie(framebuffer_width, framebuffer_height) = render_window->GetFramebufferSize();
+    float window_aspect_ratio = static_cast<float>(framebuffer_height) / framebuffer_width;
+    float emulation_aspect_ratio = static_cast<float>(resolution_height) / resolution_width;
+    MathUtil::Rectangle<unsigned> viewport_extent;
+    if (window_aspect_ratio > emulation_aspect_ratio) {
+        // Window is narrower than the emulation content => apply borders to the top and bottom
+        unsigned viewport_height = std::round(emulation_aspect_ratio * framebuffer_width);
+        viewport_extent.left = 0;
+        viewport_extent.top = (framebuffer_height - viewport_height) / 2;
+        viewport_extent.right = viewport_extent.left + framebuffer_width;
+        viewport_extent.bottom = viewport_extent.top + viewport_height;
+    } else {
+        // Otherwise, apply borders to the left and right sides of the window.
+        unsigned viewport_width = std::round(framebuffer_height / emulation_aspect_ratio);
+        viewport_extent.left = (framebuffer_width - viewport_width) / 2;
+        viewport_extent.top = 0;
+        viewport_extent.right = viewport_extent.left + viewport_width;
+        viewport_extent.bottom = viewport_extent.top + framebuffer_height;
+    }
+    return viewport_extent;
+}
 /// Initialize the renderer
 void RendererOpenGL::Init() {
    render_window->MakeCurrent();
    int err = ogl_LoadFunctions();
    if (ogl_LOAD_SUCCEEDED != err) {
-        ERROR_LOG(RENDER, "Failed to initialize GL functions! Exiting...");
+        LOG_CRITICAL(Render_OpenGL, "Failed to initialize GL functions! Exiting...");
        exit(-1);
    }
-    NOTICE_LOG(RENDER, "GL_VERSION: %s\n", glGetString(GL_VERSION));
+    LOG_INFO(Render_OpenGL, "GL_VERSION: %s", glGetString(GL_VERSION));
    InitOpenGLObjects();
 }
diff --git a/src/video_core/renderer_opengl/renderer_opengl.h b/src/video_core/renderer_opengl/renderer_opengl.h
index eed201a95..7fdcec731 100644
--- a/src/video_core/renderer_opengl/renderer_opengl.h
+++ b/src/video_core/renderer_opengl/renderer_opengl.h
@@ -4,13 +4,15 @@
 #pragma once
+#include <array>
 #include "generated/gl_3_2_core.h"
-#include "common/common.h"
+#include "common/math_util.h"
 #include "core/hw/gpu.h"
-#include "video_core/renderer_base.h"
-#include <array>
+#include "video_core/renderer_base.h"
 class EmuWindow;
@@ -52,6 +54,9 @@ private:
    static void LoadFBToActiveGLTexture(const GPU::Regs::FramebufferConfig& framebuffer,
                                        const TextureInfo& texture);
+    /// Computes the viewport rectangle
+    MathUtil::Rectangle<unsigned> GetViewportExtent();
    EmuWindow*  render_window;                    ///< Handle to render window
    u32         last_mode;                        ///< Last render mode
diff --git a/src/video_core/utils.cpp b/src/video_core/utils.cpp
index c1848f923..f1156a493 100644
--- a/src/video_core/utils.cpp
+++ b/src/video_core/utils.cpp
@@ -20,7 +20,7 @@ namespace VideoCore {
 void DumpTGA(std::string filename, short width, short height, u8* raw_data) {
    TGAHeader hdr = {0, 0, 2, 0, 0, 0, 0, width, height, 24, 0};
    FILE* fout = fopen(filename.c_str(), "wb");
-    
    fwrite(&hdr, sizeof(TGAHeader), 1, fout);
    for (int y = 0; y < height; y++) {
@@ -30,7 +30,7 @@ void DumpTGA(std::string filename, short width, short height, u8* raw_data) {
            putc(raw_data[(3 * (y * width)) + (3 * x) + 2], fout); // r
        }
    }
-    
    fclose(fout);
 }
 } // namespace
diff --git a/src/video_core/utils.h b/src/video_core/utils.h
index 9cb3d4d43..21380a908 100644
--- a/src/video_core/utils.h
+++ b/src/video_core/utils.h
@@ -12,24 +12,24 @@ namespace FormatPrecision {
 /// Adjust RGBA8 color with RGBA6 precision
 static inline u32 rgba8_with_rgba6(u32 src) {
-        u32 color = src;
+    u32 color = src;
-        color &= 0xFCFCFCFC;
+    color &= 0xFCFCFCFC;
-        color |= (color >> 6) & 0x03030303;
+    color |= (color >> 6) & 0x03030303;
-        return color;
+    return color;
 }
 /// Adjust RGBA8 color with RGB565 precision
 static inline u32 rgba8_with_rgb565(u32 src) {
-        u32 color = (src & 0xF8FCF8);
+    u32 color = (src & 0xF8FCF8);
-        color |= (color >> 5) & 0x070007;
+    color |= (color >> 5) & 0x070007;
-        color |= (color >> 6) & 0x000300;
+    color |= (color >> 6) & 0x000300;
-        color |= 0xFF000000;
+    color |= 0xFF000000;
-        return color;
+    return color;
 }
 /// Adjust Z24 depth value with Z16 precision
 static inline u32 z24_with_z16(u32 src) {
-        return (src & 0xFFFF00) | (src >> 16);
+    return (src & 0xFFFF00) | (src >> 16);
 }
 } // namespace
diff --git a/src/video_core/vertex_shader.cpp b/src/video_core/vertex_shader.cpp
index 96625791c..477e78cfe 100644
--- a/src/video_core/vertex_shader.cpp
+++ b/src/video_core/vertex_shader.cpp
@@ -2,11 +2,16 @@
 // Licensed under GPLv2
 // Refer to the license.txt file included.
+#include <boost/range/algorithm.hpp>
+#include <common/file_util.h>
+#include <core/mem_map.h>
+#include "debug_utils/debug_utils.h"
 #include "pica.h"
 #include "vertex_shader.h"
-#include "debug_utils/debug_utils.h"
-#include <core/mem_map.h>
-#include <common/file_util.h>
 namespace Pica {
@@ -201,7 +206,7 @@ static void ProcessShaderCode(VertexShaderState& state) {
            case Instruction::OpCode::CALL:
                increment_pc = false;
-                _dbg_assert_(GPU, state.call_stack_pointer - state.call_stack < sizeof(state.call_stack));
+                _dbg_assert_(HW_GPU, state.call_stack_pointer - state.call_stack < sizeof(state.call_stack));
                *++state.call_stack_pointer = state.program_counter - shader_memory;
                // TODO: Does this offset refer to the beginning of shader memory?
@@ -213,7 +218,7 @@ static void ProcessShaderCode(VertexShaderState& state) {
                break;
            default:
-                ERROR_LOG(GPU, "Unhandled instruction: 0x%02x (%s): 0x%08x",
+                LOG_ERROR(HW_GPU, "Unhandled instruction: 0x%02x (%s): 0x%08x",
                          (int)instr.opcode.Value(), instr.GetOpCodeName().c_str(), instr.hex);
                break;
        }
@@ -238,7 +243,7 @@ OutputVertex RunShader(const InputVertex& input, int num_attributes)
    // Setup input register table
    const auto& attribute_register_map = registers.vs_input_register_map;
    float24 dummy_register;
-    std::fill(&state.input_register_table[0], &state.input_register_table[16], &dummy_register);
+    boost::fill(state.input_register_table, &dummy_register);
    if(num_attributes > 0) state.input_register_table[attribute_register_map.attribute0_register] = &input.attr[0].x;
    if(num_attributes > 1) state.input_register_table[attribute_register_map.attribute1_register] = &input.attr[1].x;
    if(num_attributes > 2) state.input_register_table[attribute_register_map.attribute2_register] = &input.attr[2].x;
@@ -272,8 +277,7 @@ OutputVertex RunShader(const InputVertex& input, int num_attributes)
    state.status_registers[0] = false;
    state.status_registers[1] = false;
-    std::fill(state.call_stack, state.call_stack + sizeof(state.call_stack) / sizeof(state.call_stack[0]),
+    boost::fill(state.call_stack, VertexShaderState::INVALID_ADDRESS);
-              VertexShaderState::INVALID_ADDRESS);
    state.call_stack_pointer = &state.call_stack[0];
    ProcessShaderCode(state);
@@ -281,7 +285,7 @@ OutputVertex RunShader(const InputVertex& input, int num_attributes)
                           state.debug.max_opdesc_id, registers.vs_main_offset,
                           registers.vs_output_attributes);
-    DEBUG_LOG(GPU, "Output vertex: pos (%.2f, %.2f, %.2f, %.2f), col(%.2f, %.2f, %.2f, %.2f), tc0(%.2f, %.2f)",
+    LOG_TRACE(Render_Software, "Output vertex: pos (%.2f, %.2f, %.2f, %.2f), col(%.2f, %.2f, %.2f, %.2f), tc0(%.2f, %.2f)",
        ret.pos.x.ToFloat32(), ret.pos.y.ToFloat32(), ret.pos.z.ToFloat32(), ret.pos.w.ToFloat32(),
        ret.color.x.ToFloat32(), ret.color.y.ToFloat32(), ret.color.z.ToFloat32(), ret.color.w.ToFloat32(),
        ret.tc0.u().ToFloat32(), ret.tc0.v().ToFloat32());
diff --git a/src/video_core/vertex_shader.h b/src/video_core/vertex_shader.h
index 607a8e803..bfb6fb6e3 100644
--- a/src/video_core/vertex_shader.h
+++ b/src/video_core/vertex_shader.h
@@ -141,7 +141,7 @@ union Instruction {
                    return BitFieldType::Value();
                else if (GetRegisterType() == Temporary)
                    return BitFieldType::Value() - 0x10;
-                else if (GetRegisterType() == FloatUniform)
+                else // if (GetRegisterType() == FloatUniform)
                    return BitFieldType::Value() - 0x20;
            }
diff --git a/src/video_core/video_core.cpp b/src/video_core/video_core.cpp
index c779771c5..6791e4007 100644
--- a/src/video_core/video_core.cpp
+++ b/src/video_core/video_core.cpp
@@ -17,8 +17,8 @@
 namespace VideoCore {
-EmuWindow*      g_emu_window    = NULL;     ///< Frontend emulator window
+EmuWindow*      g_emu_window    = nullptr;     ///< Frontend emulator window
-RendererBase*   g_renderer      = NULL;     ///< Renderer plugin
+RendererBase*   g_renderer      = nullptr;     ///< Renderer plugin
 int             g_current_frame = 0;
 /// Initialize the video core
@@ -30,13 +30,13 @@ void Init(EmuWindow* emu_window) {
    g_current_frame = 0;
-    NOTICE_LOG(VIDEO, "initialized OK");
+    LOG_DEBUG(Render, "initialized OK");
 }
 /// Shutdown the video core
 void Shutdown() {
    delete g_renderer;
-    NOTICE_LOG(VIDEO, "shutdown OK");
+    LOG_DEBUG(Render, "shutdown OK");
 }
 } // namespace