Merge branch 'master' into tlds

87 files changed, 699 insertions, 581 deletions

diff --git a/src/core/arm/arm_interface.h b/src/core/arm/arm_interface.h
index c368745b1..867e34932 100644
--- a/src/core/arm/arm_interface.h
+++ b/src/core/arm/arm_interface.h
@@ -10,7 +10,7 @@
 
 namespace Core {
 
-/// Generic ARM11 CPU interface
+/// Generic ARMv8 CPU interface
 class ARM_Interface : NonCopyable {
 public:
     virtual ~ARM_Interface() {}
@@ -19,9 +19,9 @@ public:
         std::array<u64, 31> cpu_registers;
         u64 sp;
         u64 pc;
-        u64 cpsr;
-        std::array<u128, 32> fpu_registers;
-        u64 fpscr;
+        u64 pstate;
+        std::array<u128, 32> vector_registers;
+        u64 fpcr;
     };
 
     /// Runs the CPU until an event happens
@@ -31,11 +31,11 @@ public:
     virtual void Step() = 0;
 
     /// Maps a backing memory region for the CPU
-    virtual void MapBackingMemory(VAddr address, size_t size, u8* memory,
+    virtual void MapBackingMemory(VAddr address, std::size_t size, u8* memory,
                                   Kernel::VMAPermission perms) = 0;
 
     /// Unmaps a region of memory that was previously mapped using MapBackingMemory
-    virtual void UnmapMemory(VAddr address, size_t size) = 0;
+    virtual void UnmapMemory(VAddr address, std::size_t size) = 0;
 
     /// Clear all instruction cache
     virtual void ClearInstructionCache() = 0;
@@ -69,42 +69,50 @@ public:
      */
     virtual void SetReg(int index, u64 value) = 0;
 
-    virtual u128 GetExtReg(int index) const = 0;
-
-    virtual void SetExtReg(int index, u128 value) = 0;
-
     /**
-     * Gets the value of a VFP register
-     * @param index Register index (0-31)
-     * @return Returns the value in the register
+     * Gets the value of a specified vector register.
+     *
+     * @param index The index of the vector register.
+     * @return the value within the vector register.
      */
-    virtual u32 GetVFPReg(int index) const = 0;
+    virtual u128 GetVectorReg(int index) const = 0;
 
     /**
-     * Sets a VFP register to the given value
-     * @param index Register index (0-31)
-     * @param value Value to set register to
+     * Sets a given value into a vector register.
+     *
+     * @param index The index of the vector register.
+     * @param value The new value to place in the register.
      */
-    virtual void SetVFPReg(int index, u32 value) = 0;
+    virtual void SetVectorReg(int index, u128 value) = 0;
 
     /**
-     * Get the current CPSR register
-     * @return Returns the value of the CPSR register
+     * Get the current PSTATE register
+     * @return Returns the value of the PSTATE register
      */
-    virtual u32 GetCPSR() const = 0;
+    virtual u32 GetPSTATE() const = 0;
 
     /**
-     * Set the current CPSR register
-     * @param cpsr Value to set CPSR to
+     * Set the current PSTATE register
+     * @param pstate Value to set PSTATE to
      */
-    virtual void SetCPSR(u32 cpsr) = 0;
+    virtual void SetPSTATE(u32 pstate) = 0;
 
     virtual VAddr GetTlsAddress() const = 0;
 
     virtual void SetTlsAddress(VAddr address) = 0;
 
+    /**
+     * Gets the value within the TPIDR_EL0 (read/write software thread ID) register.
+     *
+     * @return the value within the register.
+     */
     virtual u64 GetTPIDR_EL0() const = 0;
 
+    /**
+     * Sets a new value within the TPIDR_EL0 (read/write software thread ID) register.
+     *
+     * @param value The new value to place in the register.
+     */
     virtual void SetTPIDR_EL0(u64 value) = 0;
 
     /**
@@ -119,6 +127,7 @@ public:
      */
     virtual void LoadContext(const ThreadContext& ctx) = 0;
 
+    /// Clears the exclusive monitor's state.
     virtual void ClearExclusiveState() = 0;
 
     /// Prepare core for thread reschedule (if needed to correctly handle state)
diff --git a/src/core/arm/dynarmic/arm_dynarmic.cpp b/src/core/arm/dynarmic/arm_dynarmic.cpp
index b47f04988..3f072c51f 100644
--- a/src/core/arm/dynarmic/arm_dynarmic.cpp
+++ b/src/core/arm/dynarmic/arm_dynarmic.cpp
@@ -58,7 +58,7 @@ public:
         Memory::Write64(vaddr + 8, value[1]);
     }
 
-    void InterpreterFallback(u64 pc, size_t num_instructions) override {
+    void InterpreterFallback(u64 pc, std::size_t num_instructions) override {
         LOG_INFO(Core_ARM, "Unicorn fallback @ 0x{:X} for {} instructions (instr = {:08X})", pc,
                  num_instructions, MemoryReadCode(pc));
 
@@ -81,7 +81,7 @@ public:
             return;
         default:
             ASSERT_MSG(false, "ExceptionRaised(exception = {}, pc = {:X})",
-                       static_cast<size_t>(exception), pc);
+                       static_cast<std::size_t>(exception), pc);
         }
     }
 
@@ -110,7 +110,7 @@ public:
     }
 
     ARM_Dynarmic& parent;
-    size_t num_interpreted_instructions = 0;
+    std::size_t num_interpreted_instructions = 0;
     u64 tpidrro_el0 = 0;
     u64 tpidr_el0 = 0;
 };
@@ -157,7 +157,8 @@ void ARM_Dynarmic::Step() {
     cb->InterpreterFallback(jit->GetPC(), 1);
 }
 
-ARM_Dynarmic::ARM_Dynarmic(std::shared_ptr<ExclusiveMonitor> exclusive_monitor, size_t core_index)
+ARM_Dynarmic::ARM_Dynarmic(std::shared_ptr<ExclusiveMonitor> exclusive_monitor,
+                           std::size_t core_index)
     : cb(std::make_unique<ARM_Dynarmic_Callbacks>(*this)), core_index{core_index},
       exclusive_monitor{std::dynamic_pointer_cast<DynarmicExclusiveMonitor>(exclusive_monitor)} {
     ThreadContext ctx;
@@ -168,12 +169,12 @@ ARM_Dynarmic::ARM_Dynarmic(std::shared_ptr<ExclusiveMonitor> exclusive_monitor,
 
 ARM_Dynarmic::~ARM_Dynarmic() = default;
 
-void ARM_Dynarmic::MapBackingMemory(u64 address, size_t size, u8* memory,
+void ARM_Dynarmic::MapBackingMemory(u64 address, std::size_t size, u8* memory,
                                     Kernel::VMAPermission perms) {
     inner_unicorn.MapBackingMemory(address, size, memory, perms);
 }
 
-void ARM_Dynarmic::UnmapMemory(u64 address, size_t size) {
+void ARM_Dynarmic::UnmapMemory(u64 address, std::size_t size) {
     inner_unicorn.UnmapMemory(address, size);
 }
 
@@ -193,29 +194,20 @@ void ARM_Dynarmic::SetReg(int index, u64 value) {
     jit->SetRegister(index, value);
 }
 
-u128 ARM_Dynarmic::GetExtReg(int index) const {
+u128 ARM_Dynarmic::GetVectorReg(int index) const {
     return jit->GetVector(index);
 }
 
-void ARM_Dynarmic::SetExtReg(int index, u128 value) {
+void ARM_Dynarmic::SetVectorReg(int index, u128 value) {
     jit->SetVector(index, value);
 }
 
-u32 ARM_Dynarmic::GetVFPReg(int /*index*/) const {
-    UNIMPLEMENTED();
-    return {};
-}
-
-void ARM_Dynarmic::SetVFPReg(int /*index*/, u32 /*value*/) {
-    UNIMPLEMENTED();
-}
-
-u32 ARM_Dynarmic::GetCPSR() const {
+u32 ARM_Dynarmic::GetPSTATE() const {
     return jit->GetPstate();
 }
 
-void ARM_Dynarmic::SetCPSR(u32 cpsr) {
-    jit->SetPstate(cpsr);
+void ARM_Dynarmic::SetPSTATE(u32 pstate) {
+    jit->SetPstate(pstate);
 }
 
 u64 ARM_Dynarmic::GetTlsAddress() const {
@@ -238,18 +230,18 @@ void ARM_Dynarmic::SaveContext(ThreadContext& ctx) {
     ctx.cpu_registers = jit->GetRegisters();
     ctx.sp = jit->GetSP();
     ctx.pc = jit->GetPC();
-    ctx.cpsr = jit->GetPstate();
-    ctx.fpu_registers = jit->GetVectors();
-    ctx.fpscr = jit->GetFpcr();
+    ctx.pstate = jit->GetPstate();
+    ctx.vector_registers = jit->GetVectors();
+    ctx.fpcr = jit->GetFpcr();
 }
 
 void ARM_Dynarmic::LoadContext(const ThreadContext& ctx) {
     jit->SetRegisters(ctx.cpu_registers);
     jit->SetSP(ctx.sp);
     jit->SetPC(ctx.pc);
-    jit->SetPstate(static_cast<u32>(ctx.cpsr));
-    jit->SetVectors(ctx.fpu_registers);
-    jit->SetFpcr(static_cast<u32>(ctx.fpscr));
+    jit->SetPstate(static_cast<u32>(ctx.pstate));
+    jit->SetVectors(ctx.vector_registers);
+    jit->SetFpcr(static_cast<u32>(ctx.fpcr));
 }
 
 void ARM_Dynarmic::PrepareReschedule() {
@@ -269,10 +261,10 @@ void ARM_Dynarmic::PageTableChanged() {
     current_page_table = Memory::GetCurrentPageTable();
 }
 
-DynarmicExclusiveMonitor::DynarmicExclusiveMonitor(size_t core_count) : monitor(core_count) {}
+DynarmicExclusiveMonitor::DynarmicExclusiveMonitor(std::size_t core_count) : monitor(core_count) {}
 DynarmicExclusiveMonitor::~DynarmicExclusiveMonitor() = default;
 
-void DynarmicExclusiveMonitor::SetExclusive(size_t core_index, VAddr addr) {
+void DynarmicExclusiveMonitor::SetExclusive(std::size_t core_index, VAddr addr) {
     // Size doesn't actually matter.
     monitor.Mark(core_index, addr, 16);
 }
@@ -281,30 +273,30 @@ void DynarmicExclusiveMonitor::ClearExclusive() {
     monitor.Clear();
 }
 
-bool DynarmicExclusiveMonitor::ExclusiveWrite8(size_t core_index, VAddr vaddr, u8 value) {
+bool DynarmicExclusiveMonitor::ExclusiveWrite8(std::size_t core_index, VAddr vaddr, u8 value) {
     return monitor.DoExclusiveOperation(core_index, vaddr, 1,
                                         [&] { Memory::Write8(vaddr, value); });
 }
 
-bool DynarmicExclusiveMonitor::ExclusiveWrite16(size_t core_index, VAddr vaddr, u16 value) {
+bool DynarmicExclusiveMonitor::ExclusiveWrite16(std::size_t core_index, VAddr vaddr, u16 value) {
     return monitor.DoExclusiveOperation(core_index, vaddr, 2,
                                         [&] { Memory::Write16(vaddr, value); });
 }
 
-bool DynarmicExclusiveMonitor::ExclusiveWrite32(size_t core_index, VAddr vaddr, u32 value) {
+bool DynarmicExclusiveMonitor::ExclusiveWrite32(std::size_t core_index, VAddr vaddr, u32 value) {
     return monitor.DoExclusiveOperation(core_index, vaddr, 4,
                                         [&] { Memory::Write32(vaddr, value); });
 }
 
-bool DynarmicExclusiveMonitor::ExclusiveWrite64(size_t core_index, VAddr vaddr, u64 value) {
+bool DynarmicExclusiveMonitor::ExclusiveWrite64(std::size_t core_index, VAddr vaddr, u64 value) {
     return monitor.DoExclusiveOperation(core_index, vaddr, 8,
                                         [&] { Memory::Write64(vaddr, value); });
 }
 
-bool DynarmicExclusiveMonitor::ExclusiveWrite128(size_t core_index, VAddr vaddr, u128 value) {
+bool DynarmicExclusiveMonitor::ExclusiveWrite128(std::size_t core_index, VAddr vaddr, u128 value) {
     return monitor.DoExclusiveOperation(core_index, vaddr, 16, [&] {
-        Memory::Write64(vaddr, value[0]);
-        Memory::Write64(vaddr, value[1]);
+        Memory::Write64(vaddr + 0, value[0]);
+        Memory::Write64(vaddr + 8, value[1]);
     });
 }
 
diff --git a/src/core/arm/dynarmic/arm_dynarmic.h b/src/core/arm/dynarmic/arm_dynarmic.h
index 3bdfd8cd9..e61382d3d 100644
--- a/src/core/arm/dynarmic/arm_dynarmic.h
+++ b/src/core/arm/dynarmic/arm_dynarmic.h
@@ -19,24 +19,22 @@ class DynarmicExclusiveMonitor;
 
 class ARM_Dynarmic final : public ARM_Interface {
 public:
-    ARM_Dynarmic(std::shared_ptr<ExclusiveMonitor> exclusive_monitor, size_t core_index);
+    ARM_Dynarmic(std::shared_ptr<ExclusiveMonitor> exclusive_monitor, std::size_t core_index);
     ~ARM_Dynarmic();
 
-    void MapBackingMemory(VAddr address, size_t size, u8* memory,
+    void MapBackingMemory(VAddr address, std::size_t size, u8* memory,
                           Kernel::VMAPermission perms) override;
-    void UnmapMemory(u64 address, size_t size) override;
+    void UnmapMemory(u64 address, std::size_t size) override;
     void SetPC(u64 pc) override;
     u64 GetPC() const override;
     u64 GetReg(int index) const override;
     void SetReg(int index, u64 value) override;
-    u128 GetExtReg(int index) const override;
-    void SetExtReg(int index, u128 value) override;
-    u32 GetVFPReg(int index) const override;
-    void SetVFPReg(int index, u32 value) override;
-    u32 GetCPSR() const override;
+    u128 GetVectorReg(int index) const override;
+    void SetVectorReg(int index, u128 value) override;
+    u32 GetPSTATE() const override;
+    void SetPSTATE(u32 pstate) override;
     void Run() override;
     void Step() override;
-    void SetCPSR(u32 cpsr) override;
     VAddr GetTlsAddress() const override;
     void SetTlsAddress(VAddr address) override;
     void SetTPIDR_EL0(u64 value) override;
@@ -59,7 +57,7 @@ private:
     std::unique_ptr<Dynarmic::A64::Jit> jit;
     ARM_Unicorn inner_unicorn;
 
-    size_t core_index;
+    std::size_t core_index;
     std::shared_ptr<DynarmicExclusiveMonitor> exclusive_monitor;
 
     Memory::PageTable* current_page_table = nullptr;
@@ -67,17 +65,17 @@ private:
 
 class DynarmicExclusiveMonitor final : public ExclusiveMonitor {
 public:
-    explicit DynarmicExclusiveMonitor(size_t core_count);
+    explicit DynarmicExclusiveMonitor(std::size_t core_count);
     ~DynarmicExclusiveMonitor();
 
-    void SetExclusive(size_t core_index, VAddr addr) override;
+    void SetExclusive(std::size_t core_index, VAddr addr) override;
     void ClearExclusive() override;
 
-    bool ExclusiveWrite8(size_t core_index, VAddr vaddr, u8 value) override;
-    bool ExclusiveWrite16(size_t core_index, VAddr vaddr, u16 value) override;
-    bool ExclusiveWrite32(size_t core_index, VAddr vaddr, u32 value) override;
-    bool ExclusiveWrite64(size_t core_index, VAddr vaddr, u64 value) override;
-    bool ExclusiveWrite128(size_t core_index, VAddr vaddr, u128 value) override;
+    bool ExclusiveWrite8(std::size_t core_index, VAddr vaddr, u8 value) override;
+    bool ExclusiveWrite16(std::size_t core_index, VAddr vaddr, u16 value) override;
+    bool ExclusiveWrite32(std::size_t core_index, VAddr vaddr, u32 value) override;
+    bool ExclusiveWrite64(std::size_t core_index, VAddr vaddr, u64 value) override;
+    bool ExclusiveWrite128(std::size_t core_index, VAddr vaddr, u128 value) override;
 
 private:
     friend class ARM_Dynarmic;
diff --git a/src/core/arm/exclusive_monitor.h b/src/core/arm/exclusive_monitor.h
index 6f9b51573..f59aca667 100644
--- a/src/core/arm/exclusive_monitor.h
+++ b/src/core/arm/exclusive_monitor.h
@@ -12,14 +12,14 @@ class ExclusiveMonitor {
 public:
     virtual ~ExclusiveMonitor();
 
-    virtual void SetExclusive(size_t core_index, VAddr addr) = 0;
+    virtual void SetExclusive(std::size_t core_index, VAddr addr) = 0;
     virtual void ClearExclusive() = 0;
 
-    virtual bool ExclusiveWrite8(size_t core_index, VAddr vaddr, u8 value) = 0;
-    virtual bool ExclusiveWrite16(size_t core_index, VAddr vaddr, u16 value) = 0;
-    virtual bool ExclusiveWrite32(size_t core_index, VAddr vaddr, u32 value) = 0;
-    virtual bool ExclusiveWrite64(size_t core_index, VAddr vaddr, u64 value) = 0;
-    virtual bool ExclusiveWrite128(size_t core_index, VAddr vaddr, u128 value) = 0;
+    virtual bool ExclusiveWrite8(std::size_t core_index, VAddr vaddr, u8 value) = 0;
+    virtual bool ExclusiveWrite16(std::size_t core_index, VAddr vaddr, u16 value) = 0;
+    virtual bool ExclusiveWrite32(std::size_t core_index, VAddr vaddr, u32 value) = 0;
+    virtual bool ExclusiveWrite64(std::size_t core_index, VAddr vaddr, u64 value) = 0;
+    virtual bool ExclusiveWrite128(std::size_t core_index, VAddr vaddr, u128 value) = 0;
 };
 
 } // namespace Core
diff --git a/src/core/arm/unicorn/arm_unicorn.cpp b/src/core/arm/unicorn/arm_unicorn.cpp
index 4c4de2623..e218a0b15 100644
--- a/src/core/arm/unicorn/arm_unicorn.cpp
+++ b/src/core/arm/unicorn/arm_unicorn.cpp
@@ -90,12 +90,12 @@ ARM_Unicorn::~ARM_Unicorn() {
     CHECKED(uc_close(uc));
 }
 
-void ARM_Unicorn::MapBackingMemory(VAddr address, size_t size, u8* memory,
+void ARM_Unicorn::MapBackingMemory(VAddr address, std::size_t size, u8* memory,
                                    Kernel::VMAPermission perms) {
     CHECKED(uc_mem_map_ptr(uc, address, size, static_cast<u32>(perms), memory));
 }
 
-void ARM_Unicorn::UnmapMemory(VAddr address, size_t size) {
+void ARM_Unicorn::UnmapMemory(VAddr address, std::size_t size) {
     CHECKED(uc_mem_unmap(uc, address, size));
 }
 
@@ -131,33 +131,24 @@ void ARM_Unicorn::SetReg(int regn, u64 val) {
     CHECKED(uc_reg_write(uc, treg, &val));
 }
 
-u128 ARM_Unicorn::GetExtReg(int /*index*/) const {
+u128 ARM_Unicorn::GetVectorReg(int /*index*/) const {
     UNIMPLEMENTED();
     static constexpr u128 res{};
     return res;
 }
 
-void ARM_Unicorn::SetExtReg(int /*index*/, u128 /*value*/) {
+void ARM_Unicorn::SetVectorReg(int /*index*/, u128 /*value*/) {
     UNIMPLEMENTED();
 }
 
-u32 ARM_Unicorn::GetVFPReg(int /*index*/) const {
-    UNIMPLEMENTED();
-    return {};
-}
-
-void ARM_Unicorn::SetVFPReg(int /*index*/, u32 /*value*/) {
-    UNIMPLEMENTED();
-}
-
-u32 ARM_Unicorn::GetCPSR() const {
+u32 ARM_Unicorn::GetPSTATE() const {
     u64 nzcv{};
     CHECKED(uc_reg_read(uc, UC_ARM64_REG_NZCV, &nzcv));
     return static_cast<u32>(nzcv);
 }
 
-void ARM_Unicorn::SetCPSR(u32 cpsr) {
-    u64 nzcv = cpsr;
+void ARM_Unicorn::SetPSTATE(u32 pstate) {
+    u64 nzcv = pstate;
     CHECKED(uc_reg_write(uc, UC_ARM64_REG_NZCV, &nzcv));
 }
 
@@ -219,7 +210,7 @@ void ARM_Unicorn::SaveContext(ThreadContext& ctx) {
 
     CHECKED(uc_reg_read(uc, UC_ARM64_REG_SP, &ctx.sp));
     CHECKED(uc_reg_read(uc, UC_ARM64_REG_PC, &ctx.pc));
-    CHECKED(uc_reg_read(uc, UC_ARM64_REG_NZCV, &ctx.cpsr));
+    CHECKED(uc_reg_read(uc, UC_ARM64_REG_NZCV, &ctx.pstate));
 
     for (auto i = 0; i < 29; ++i) {
         uregs[i] = UC_ARM64_REG_X0 + i;
@@ -234,7 +225,7 @@ void ARM_Unicorn::SaveContext(ThreadContext& ctx) {
 
     for (int i = 0; i < 32; ++i) {
         uregs[i] = UC_ARM64_REG_Q0 + i;
-        tregs[i] = &ctx.fpu_registers[i];
+        tregs[i] = &ctx.vector_registers[i];
     }
 
     CHECKED(uc_reg_read_batch(uc, uregs, tregs, 32));
@@ -246,7 +237,7 @@ void ARM_Unicorn::LoadContext(const ThreadContext& ctx) {
 
     CHECKED(uc_reg_write(uc, UC_ARM64_REG_SP, &ctx.sp));
     CHECKED(uc_reg_write(uc, UC_ARM64_REG_PC, &ctx.pc));
-    CHECKED(uc_reg_write(uc, UC_ARM64_REG_NZCV, &ctx.cpsr));
+    CHECKED(uc_reg_write(uc, UC_ARM64_REG_NZCV, &ctx.pstate));
 
     for (int i = 0; i < 29; ++i) {
         uregs[i] = UC_ARM64_REG_X0 + i;
@@ -261,7 +252,7 @@ void ARM_Unicorn::LoadContext(const ThreadContext& ctx) {
 
     for (auto i = 0; i < 32; ++i) {
         uregs[i] = UC_ARM64_REG_Q0 + i;
-        tregs[i] = (void*)&ctx.fpu_registers[i];
+        tregs[i] = (void*)&ctx.vector_registers[i];
     }
 
     CHECKED(uc_reg_write_batch(uc, uregs, tregs, 32));
diff --git a/src/core/arm/unicorn/arm_unicorn.h b/src/core/arm/unicorn/arm_unicorn.h
index bd6b2f723..75761950b 100644
--- a/src/core/arm/unicorn/arm_unicorn.h
+++ b/src/core/arm/unicorn/arm_unicorn.h
@@ -15,19 +15,17 @@ class ARM_Unicorn final : public ARM_Interface {
 public:
     ARM_Unicorn();
     ~ARM_Unicorn();
-    void MapBackingMemory(VAddr address, size_t size, u8* memory,
+    void MapBackingMemory(VAddr address, std::size_t size, u8* memory,
                           Kernel::VMAPermission perms) override;
-    void UnmapMemory(VAddr address, size_t size) override;
+    void UnmapMemory(VAddr address, std::size_t size) override;
     void SetPC(u64 pc) override;
     u64 GetPC() const override;
     u64 GetReg(int index) const override;
     void SetReg(int index, u64 value) override;
-    u128 GetExtReg(int index) const override;
-    void SetExtReg(int index, u128 value) override;
-    u32 GetVFPReg(int index) const override;
-    void SetVFPReg(int index, u32 value) override;
-    u32 GetCPSR() const override;
-    void SetCPSR(u32 cpsr) override;
+    u128 GetVectorReg(int index) const override;
+    void SetVectorReg(int index, u128 value) override;
+    u32 GetPSTATE() const override;
+    void SetPSTATE(u32 pstate) override;
     VAddr GetTlsAddress() const override;
     void SetTlsAddress(VAddr address) override;
     void SetTPIDR_EL0(u64 value) override;
diff --git a/src/core/core.cpp b/src/core/core.cpp
index 713ee17c1..50f0a42fb 100644
--- a/src/core/core.cpp
+++ b/src/core/core.cpp
@@ -140,7 +140,7 @@ struct System::Impl {
 
         cpu_barrier = std::make_shared<CpuBarrier>();
         cpu_exclusive_monitor = Cpu::MakeExclusiveMonitor(cpu_cores.size());
-        for (size_t index = 0; index < cpu_cores.size(); ++index) {
+        for (std::size_t index = 0; index < cpu_cores.size(); ++index) {
             cpu_cores[index] = std::make_shared<Cpu>(cpu_exclusive_monitor, cpu_barrier, index);
         }
 
@@ -161,7 +161,7 @@ struct System::Impl {
         // CPU core 0 is run on the main thread
         thread_to_cpu[std::this_thread::get_id()] = cpu_cores[0];
         if (Settings::values.use_multi_core) {
-            for (size_t index = 0; index < cpu_core_threads.size(); ++index) {
+            for (std::size_t index = 0; index < cpu_core_threads.size(); ++index) {
                 cpu_core_threads[index] =
                     std::make_unique<std::thread>(RunCpuCore, cpu_cores[index + 1]);
                 thread_to_cpu[cpu_core_threads[index]->get_id()] = cpu_cores[index + 1];
@@ -285,7 +285,7 @@ struct System::Impl {
     std::shared_ptr<CpuBarrier> cpu_barrier;
     std::array<std::shared_ptr<Cpu>, NUM_CPU_CORES> cpu_cores;
     std::array<std::unique_ptr<std::thread>, NUM_CPU_CORES - 1> cpu_core_threads;
-    size_t active_core{}; ///< Active core, only used in single thread mode
+    std::size_t active_core{}; ///< Active core, only used in single thread mode
 
     /// Service manager
     std::shared_ptr<Service::SM::ServiceManager> service_manager;
@@ -348,7 +348,7 @@ ARM_Interface& System::CurrentArmInterface() {
     return CurrentCpuCore().ArmInterface();
 }
 
-size_t System::CurrentCoreIndex() {
+std::size_t System::CurrentCoreIndex() {
     return CurrentCpuCore().CoreIndex();
 }
 
@@ -356,7 +356,7 @@ Kernel::Scheduler& System::CurrentScheduler() {
     return *CurrentCpuCore().Scheduler();
 }
 
-const std::shared_ptr<Kernel::Scheduler>& System::Scheduler(size_t core_index) {
+const std::shared_ptr<Kernel::Scheduler>& System::Scheduler(std::size_t core_index) {
     ASSERT(core_index < NUM_CPU_CORES);
     return impl->cpu_cores[core_index]->Scheduler();
 }
@@ -369,12 +369,12 @@ const Kernel::SharedPtr<Kernel::Process>& System::CurrentProcess() const {
     return impl->kernel.CurrentProcess();
 }
 
-ARM_Interface& System::ArmInterface(size_t core_index) {
+ARM_Interface& System::ArmInterface(std::size_t core_index) {
     ASSERT(core_index < NUM_CPU_CORES);
     return impl->cpu_cores[core_index]->ArmInterface();
 }
 
-Cpu& System::CpuCore(size_t core_index) {
+Cpu& System::CpuCore(std::size_t core_index) {
     ASSERT(core_index < NUM_CPU_CORES);
     return *impl->cpu_cores[core_index];
 }
diff --git a/src/core/core.h b/src/core/core.h
index ab3663427..f9a3e97e3 100644
--- a/src/core/core.h
+++ b/src/core/core.h
@@ -145,16 +145,16 @@ public:
     ARM_Interface& CurrentArmInterface();
 
     /// Gets the index of the currently running CPU core
-    size_t CurrentCoreIndex();
+    std::size_t CurrentCoreIndex();
 
     /// Gets the scheduler for the CPU core that is currently running
     Kernel::Scheduler& CurrentScheduler();
 
     /// Gets an ARM interface to the CPU core with the specified index
-    ARM_Interface& ArmInterface(size_t core_index);
+    ARM_Interface& ArmInterface(std::size_t core_index);
 
     /// Gets a CPU interface to the CPU core with the specified index
-    Cpu& CpuCore(size_t core_index);
+    Cpu& CpuCore(std::size_t core_index);
 
     /// Gets the exclusive monitor
     ExclusiveMonitor& Monitor();
@@ -172,7 +172,7 @@ public:
     const VideoCore::RendererBase& Renderer() const;
 
     /// Gets the scheduler for the CPU core with the specified index
-    const std::shared_ptr<Kernel::Scheduler>& Scheduler(size_t core_index);
+    const std::shared_ptr<Kernel::Scheduler>& Scheduler(std::size_t core_index);
 
     /// Provides a reference to the current process
     Kernel::SharedPtr<Kernel::Process>& CurrentProcess();
diff --git a/src/core/core_cpu.cpp b/src/core/core_cpu.cpp
index b042ee02b..21568ad50 100644
--- a/src/core/core_cpu.cpp
+++ b/src/core/core_cpu.cpp
@@ -9,6 +9,7 @@
 #ifdef ARCHITECTURE_x86_64
 #include "core/arm/dynarmic/arm_dynarmic.h"
 #endif
+#include "core/arm/exclusive_monitor.h"
 #include "core/arm/unicorn/arm_unicorn.h"
 #include "core/core_cpu.h"
 #include "core/core_timing.h"
@@ -49,7 +50,7 @@ bool CpuBarrier::Rendezvous() {
 }
 
 Cpu::Cpu(std::shared_ptr<ExclusiveMonitor> exclusive_monitor,
-         std::shared_ptr<CpuBarrier> cpu_barrier, size_t core_index)
+         std::shared_ptr<CpuBarrier> cpu_barrier, std::size_t core_index)
     : cpu_barrier{std::move(cpu_barrier)}, core_index{core_index} {
 
     if (Settings::values.use_cpu_jit) {
@@ -66,7 +67,9 @@ Cpu::Cpu(std::shared_ptr<ExclusiveMonitor> exclusive_monitor,
     scheduler = std::make_shared<Kernel::Scheduler>(arm_interface.get());
 }
 
-std::shared_ptr<ExclusiveMonitor> Cpu::MakeExclusiveMonitor(size_t num_cores) {
+Cpu::~Cpu() = default;
+
+std::shared_ptr<ExclusiveMonitor> Cpu::MakeExclusiveMonitor(std::size_t num_cores) {
     if (Settings::values.use_cpu_jit) {
 #ifdef ARCHITECTURE_x86_64
         return std::make_shared<DynarmicExclusiveMonitor>(num_cores);
diff --git a/src/core/core_cpu.h b/src/core/core_cpu.h
index 40ed34b47..685532965 100644
--- a/src/core/core_cpu.h
+++ b/src/core/core_cpu.h
@@ -6,11 +6,10 @@
 
 #include <atomic>
 #include <condition_variable>
+#include <cstddef>
 #include <memory>
 #include <mutex>
-#include <string>
 #include "common/common_types.h"
-#include "core/arm/exclusive_monitor.h"
 
 namespace Kernel {
 class Scheduler;
@@ -19,6 +18,7 @@ class Scheduler;
 namespace Core {
 
 class ARM_Interface;
+class ExclusiveMonitor;
 
 constexpr unsigned NUM_CPU_CORES{4};
 
@@ -42,7 +42,8 @@ private:
 class Cpu {
 public:
     Cpu(std::shared_ptr<ExclusiveMonitor> exclusive_monitor,
-        std::shared_ptr<CpuBarrier> cpu_barrier, size_t core_index);
+        std::shared_ptr<CpuBarrier> cpu_barrier, std::size_t core_index);
+    ~Cpu();
 
     void RunLoop(bool tight_loop = true);
 
@@ -66,11 +67,11 @@ public:
         return core_index == 0;
     }
 
-    size_t CoreIndex() const {
+    std::size_t CoreIndex() const {
         return core_index;
     }
 
-    static std::shared_ptr<ExclusiveMonitor> MakeExclusiveMonitor(size_t num_cores);
+    static std::shared_ptr<ExclusiveMonitor> MakeExclusiveMonitor(std::size_t num_cores);
 
 private:
     void Reschedule();
@@ -80,7 +81,7 @@ private:
     std::shared_ptr<Kernel::Scheduler> scheduler;
 
     std::atomic<bool> reschedule_pending = false;
-    size_t core_index;
+    std::size_t core_index;
 };
 
 } // namespace Core
diff --git a/src/core/crypto/aes_util.cpp b/src/core/crypto/aes_util.cpp
index 89ade5000..4be76bb43 100644
--- a/src/core/crypto/aes_util.cpp
+++ b/src/core/crypto/aes_util.cpp
@@ -10,9 +10,9 @@
 
 namespace Core::Crypto {
 namespace {
-std::vector<u8> CalculateNintendoTweak(size_t sector_id) {
+std::vector<u8> CalculateNintendoTweak(std::size_t sector_id) {
     std::vector<u8> out(0x10);
-    for (size_t i = 0xF; i <= 0xF; --i) {
+    for (std::size_t i = 0xF; i <= 0xF; --i) {
         out[i] = sector_id & 0xFF;
         sector_id >>= 8;
     }
@@ -20,11 +20,14 @@ std::vector<u8> CalculateNintendoTweak(size_t sector_id) {
 }
 } // Anonymous namespace
 
-static_assert(static_cast<size_t>(Mode::CTR) == static_cast<size_t>(MBEDTLS_CIPHER_AES_128_CTR),
+static_assert(static_cast<std::size_t>(Mode::CTR) ==
+                  static_cast<std::size_t>(MBEDTLS_CIPHER_AES_128_CTR),
               "CTR has incorrect value.");
-static_assert(static_cast<size_t>(Mode::ECB) == static_cast<size_t>(MBEDTLS_CIPHER_AES_128_ECB),
+static_assert(static_cast<std::size_t>(Mode::ECB) ==
+                  static_cast<std::size_t>(MBEDTLS_CIPHER_AES_128_ECB),
               "ECB has incorrect value.");
-static_assert(static_cast<size_t>(Mode::XTS) == static_cast<size_t>(MBEDTLS_CIPHER_AES_128_XTS),
+static_assert(static_cast<std::size_t>(Mode::XTS) ==
+                  static_cast<std::size_t>(MBEDTLS_CIPHER_AES_128_XTS),
               "XTS has incorrect value.");
 
 // Structure to hide mbedtls types from header file
@@ -33,7 +36,7 @@ struct CipherContext {
     mbedtls_cipher_context_t decryption_context;
 };
 
-template <typename Key, size_t KeySize>
+template <typename Key, std::size_t KeySize>
 Crypto::AESCipher<Key, KeySize>::AESCipher(Key key, Mode mode)
     : ctx(std::make_unique<CipherContext>()) {
     mbedtls_cipher_init(&ctx->encryption_context);
@@ -54,26 +57,26 @@ Crypto::AESCipher<Key, KeySize>::AESCipher(Key key, Mode mode)
     //"Failed to set key on mbedtls ciphers.");
 }
 
-template <typename Key, size_t KeySize>
+template <typename Key, std::size_t KeySize>
 AESCipher<Key, KeySize>::~AESCipher() {
     mbedtls_cipher_free(&ctx->encryption_context);
     mbedtls_cipher_free(&ctx->decryption_context);
 }
 
-template <typename Key, size_t KeySize>
+template <typename Key, std::size_t KeySize>
 void AESCipher<Key, KeySize>::SetIV(std::vector<u8> iv) {
     ASSERT_MSG((mbedtls_cipher_set_iv(&ctx->encryption_context, iv.data(), iv.size()) ||
                 mbedtls_cipher_set_iv(&ctx->decryption_context, iv.data(), iv.size())) == 0,
                "Failed to set IV on mbedtls ciphers.");
 }
 
-template <typename Key, size_t KeySize>
-void AESCipher<Key, KeySize>::Transcode(const u8* src, size_t size, u8* dest, Op op) const {
+template <typename Key, std::size_t KeySize>
+void AESCipher<Key, KeySize>::Transcode(const u8* src, std::size_t size, u8* dest, Op op) const {
     auto* const context = op == Op::Encrypt ? &ctx->encryption_context : &ctx->decryption_context;
 
     mbedtls_cipher_reset(context);
 
-    size_t written = 0;
+    std::size_t written = 0;
     if (mbedtls_cipher_get_cipher_mode(context) == MBEDTLS_MODE_XTS) {
         mbedtls_cipher_update(context, src, size, dest, &written);
         if (written != size) {
@@ -90,8 +93,8 @@ void AESCipher<Key, KeySize>::Transcode(const u8* src, size_t size, u8* dest, Op
             return;
         }
 
-        for (size_t offset = 0; offset < size; offset += block_size) {
-            auto length = std::min<size_t>(block_size, size - offset);
+        for (std::size_t offset = 0; offset < size; offset += block_size) {
+            auto length = std::min<std::size_t>(block_size, size - offset);
             mbedtls_cipher_update(context, src + offset, length, dest + offset, &written);
             if (written != length) {
                 if (length < block_size) {
@@ -110,12 +113,12 @@ void AESCipher<Key, KeySize>::Transcode(const u8* src, size_t size, u8* dest, Op
     mbedtls_cipher_finish(context, nullptr, nullptr);
 }
 
-template <typename Key, size_t KeySize>
-void AESCipher<Key, KeySize>::XTSTranscode(const u8* src, size_t size, u8* dest, size_t sector_id,
-                                           size_t sector_size, Op op) {
+template <typename Key, std::size_t KeySize>
+void AESCipher<Key, KeySize>::XTSTranscode(const u8* src, std::size_t size, u8* dest,
+                                           std::size_t sector_id, std::size_t sector_size, Op op) {
     ASSERT_MSG(size % sector_size == 0, "XTS decryption size must be a multiple of sector size.");
 
-    for (size_t i = 0; i < size; i += sector_size) {
+    for (std::size_t i = 0; i < size; i += sector_size) {
         SetIV(CalculateNintendoTweak(sector_id++));
         Transcode<u8, u8>(src + i, sector_size, dest + i, op);
     }
diff --git a/src/core/crypto/aes_util.h b/src/core/crypto/aes_util.h
index 8ce9d6612..edc4ab910 100644
--- a/src/core/crypto/aes_util.h
+++ b/src/core/crypto/aes_util.h
@@ -25,7 +25,7 @@ enum class Op {
     Decrypt,
 };
 
-template <typename Key, size_t KeySize = sizeof(Key)>
+template <typename Key, std::size_t KeySize = sizeof(Key)>
 class AESCipher {
     static_assert(std::is_same_v<Key, std::array<u8, KeySize>>, "Key must be std::array of u8.");
     static_assert(KeySize == 0x10 || KeySize == 0x20, "KeySize must be 128 or 256.");
@@ -38,25 +38,25 @@ public:
     void SetIV(std::vector<u8> iv);
 
     template <typename Source, typename Dest>
-    void Transcode(const Source* src, size_t size, Dest* dest, Op op) const {
+    void Transcode(const Source* src, std::size_t size, Dest* dest, Op op) const {
         static_assert(std::is_trivially_copyable_v<Source> && std::is_trivially_copyable_v<Dest>,
                       "Transcode source and destination types must be trivially copyable.");
         Transcode(reinterpret_cast<const u8*>(src), size, reinterpret_cast<u8*>(dest), op);
     }
 
-    void Transcode(const u8* src, size_t size, u8* dest, Op op) const;
+    void Transcode(const u8* src, std::size_t size, u8* dest, Op op) const;
 
     template <typename Source, typename Dest>
-    void XTSTranscode(const Source* src, size_t size, Dest* dest, size_t sector_id,
-                      size_t sector_size, Op op) {
+    void XTSTranscode(const Source* src, std::size_t size, Dest* dest, std::size_t sector_id,
+                      std::size_t sector_size, Op op) {
         static_assert(std::is_trivially_copyable_v<Source> && std::is_trivially_copyable_v<Dest>,
                       "XTSTranscode source and destination types must be trivially copyable.");
         XTSTranscode(reinterpret_cast<const u8*>(src), size, reinterpret_cast<u8*>(dest), sector_id,
                      sector_size, op);
     }
 
-    void XTSTranscode(const u8* src, size_t size, u8* dest, size_t sector_id, size_t sector_size,
-                      Op op);
+    void XTSTranscode(const u8* src, std::size_t size, u8* dest, std::size_t sector_id,
+                      std::size_t sector_size, Op op);
 
 private:
     std::unique_ptr<CipherContext> ctx;
diff --git a/src/core/crypto/ctr_encryption_layer.cpp b/src/core/crypto/ctr_encryption_layer.cpp
index 296fad419..902841c77 100644
--- a/src/core/crypto/ctr_encryption_layer.cpp
+++ b/src/core/crypto/ctr_encryption_layer.cpp
@@ -8,11 +8,12 @@
 
 namespace Core::Crypto {
 
-CTREncryptionLayer::CTREncryptionLayer(FileSys::VirtualFile base_, Key128 key_, size_t base_offset)
+CTREncryptionLayer::CTREncryptionLayer(FileSys::VirtualFile base_, Key128 key_,
+                                       std::size_t base_offset)
     : EncryptionLayer(std::move(base_)), base_offset(base_offset), cipher(key_, Mode::CTR),
       iv(16, 0) {}
 
-size_t CTREncryptionLayer::Read(u8* data, size_t length, size_t offset) const {
+std::size_t CTREncryptionLayer::Read(u8* data, std::size_t length, std::size_t offset) const {
     if (length == 0)
         return 0;
 
@@ -28,7 +29,7 @@ size_t CTREncryptionLayer::Read(u8* data, size_t length, size_t offset) const {
     std::vector<u8> block = base->ReadBytes(0x10, offset - sector_offset);
     UpdateIV(base_offset + offset - sector_offset);
     cipher.Transcode(block.data(), block.size(), block.data(), Op::Decrypt);
-    size_t read = 0x10 - sector_offset;
+    std::size_t read = 0x10 - sector_offset;
 
     if (length + sector_offset < 0x10) {
         std::memcpy(data, block.data() + sector_offset, std::min<u64>(length, read));
@@ -43,9 +44,9 @@ void CTREncryptionLayer::SetIV(const std::vector<u8>& iv_) {
     iv.assign(iv_.cbegin(), iv_.cbegin() + length);
 }
 
-void CTREncryptionLayer::UpdateIV(size_t offset) const {
+void CTREncryptionLayer::UpdateIV(std::size_t offset) const {
     offset >>= 4;
-    for (size_t i = 0; i < 8; ++i) {
+    for (std::size_t i = 0; i < 8; ++i) {
         iv[16 - i - 1] = offset & 0xFF;
         offset >>= 8;
     }
diff --git a/src/core/crypto/ctr_encryption_layer.h b/src/core/crypto/ctr_encryption_layer.h
index 11b8683c7..a7bf810f4 100644
--- a/src/core/crypto/ctr_encryption_layer.h
+++ b/src/core/crypto/ctr_encryption_layer.h
@@ -14,20 +14,20 @@ namespace Core::Crypto {
 // Sits on top of a VirtualFile and provides CTR-mode AES decription.
 class CTREncryptionLayer : public EncryptionLayer {
 public:
-    CTREncryptionLayer(FileSys::VirtualFile base, Key128 key, size_t base_offset);
+    CTREncryptionLayer(FileSys::VirtualFile base, Key128 key, std::size_t base_offset);
 
-    size_t Read(u8* data, size_t length, size_t offset) const override;
+    std::size_t Read(u8* data, std::size_t length, std::size_t offset) const override;
 
     void SetIV(const std::vector<u8>& iv);
 
 private:
-    size_t base_offset;
+    std::size_t base_offset;
 
     // Must be mutable as operations modify cipher contexts.
     mutable AESCipher<Key128> cipher;
     mutable std::vector<u8> iv;
 
-    void UpdateIV(size_t offset) const;
+    void UpdateIV(std::size_t offset) const;
 };
 
 } // namespace Core::Crypto
diff --git a/src/core/crypto/encryption_layer.cpp b/src/core/crypto/encryption_layer.cpp
index 4204527e3..4c377d7d4 100644
--- a/src/core/crypto/encryption_layer.cpp
+++ b/src/core/crypto/encryption_layer.cpp
@@ -12,11 +12,11 @@ std::string EncryptionLayer::GetName() const {
     return base->GetName();
 }
 
-size_t EncryptionLayer::GetSize() const {
+std::size_t EncryptionLayer::GetSize() const {
     return base->GetSize();
 }
 
-bool EncryptionLayer::Resize(size_t new_size) {
+bool EncryptionLayer::Resize(std::size_t new_size) {
     return false;
 }
 
@@ -32,7 +32,7 @@ bool EncryptionLayer::IsReadable() const {
     return true;
 }
 
-size_t EncryptionLayer::Write(const u8* data, size_t length, size_t offset) {
+std::size_t EncryptionLayer::Write(const u8* data, std::size_t length, std::size_t offset) {
     return 0;
 }
 
diff --git a/src/core/crypto/encryption_layer.h b/src/core/crypto/encryption_layer.h
index 7f05af9b4..53619cb38 100644
--- a/src/core/crypto/encryption_layer.h
+++ b/src/core/crypto/encryption_layer.h
@@ -15,15 +15,15 @@ class EncryptionLayer : public FileSys::VfsFile {
 public:
     explicit EncryptionLayer(FileSys::VirtualFile base);
 
-    size_t Read(u8* data, size_t length, size_t offset) const override = 0;
+    std::size_t Read(u8* data, std::size_t length, std::size_t offset) const override = 0;
 
     std::string GetName() const override;
-    size_t GetSize() const override;
-    bool Resize(size_t new_size) override;
+    std::size_t GetSize() const override;
+    bool Resize(std::size_t new_size) override;
     std::shared_ptr<FileSys::VfsDirectory> GetContainingDirectory() const override;
     bool IsWritable() const override;
     bool IsReadable() const override;
-    size_t Write(const u8* data, size_t length, size_t offset) override;
+    std::size_t Write(const u8* data, std::size_t length, std::size_t offset) override;
     bool Rename(std::string_view name) override;
 
 protected:
diff --git a/src/core/crypto/key_manager.cpp b/src/core/crypto/key_manager.cpp
index 6f27f990b..bf3a70944 100644
--- a/src/core/crypto/key_manager.cpp
+++ b/src/core/crypto/key_manager.cpp
@@ -54,7 +54,7 @@ boost::optional<Key128> DeriveSDSeed() {
         return boost::none;
 
     std::array<u8, 0x10> buffer{};
-    size_t offset = 0;
+    std::size_t offset = 0;
     for (; offset + 0x10 < save_43.GetSize(); ++offset) {
         save_43.Seek(offset, SEEK_SET);
         save_43.ReadBytes(buffer.data(), buffer.size());
@@ -105,7 +105,7 @@ Loader::ResultStatus DeriveSDKeys(std::array<Key256, 2>& sd_keys, const KeyManag
 
     // Combine sources and seed
     for (auto& source : sd_key_sources) {
-        for (size_t i = 0; i < source.size(); ++i)
+        for (std::size_t i = 0; i < source.size(); ++i)
             source[i] ^= sd_seed[i & 0xF];
     }
 
@@ -207,7 +207,7 @@ Key256 KeyManager::GetKey(S256KeyType id, u64 field1, u64 field2) const {
     return s256_keys.at({id, field1, field2});
 }
 
-template <size_t Size>
+template <std::size_t Size>
 void KeyManager::WriteKeyToFile(bool title_key, std::string_view keyname,
                                 const std::array<u8, Size>& key) {
     const std::string yuzu_keys_dir = FileUtil::GetUserPath(FileUtil::UserPath::KeysDir);
diff --git a/src/core/crypto/key_manager.h b/src/core/crypto/key_manager.h
index ce67913bb..978eec8dc 100644
--- a/src/core/crypto/key_manager.h
+++ b/src/core/crypto/key_manager.h
@@ -108,7 +108,7 @@ private:
     void LoadFromFile(const std::string& filename, bool is_title_keys);
     void AttemptLoadKeyFile(const std::string& dir1, const std::string& dir2,
                             const std::string& filename, bool title);
-    template <size_t Size>
+    template <std::size_t Size>
     void WriteKeyToFile(bool title_key, std::string_view keyname, const std::array<u8, Size>& key);
 
     static const boost::container::flat_map<std::string, KeyIndex<S128KeyType>> s128_file_id;
diff --git a/src/core/crypto/xts_encryption_layer.cpp b/src/core/crypto/xts_encryption_layer.cpp
index c10832cfe..8f0ba4ee7 100644
--- a/src/core/crypto/xts_encryption_layer.cpp
+++ b/src/core/crypto/xts_encryption_layer.cpp
@@ -14,7 +14,7 @@ constexpr u64 XTS_SECTOR_SIZE = 0x4000;
 XTSEncryptionLayer::XTSEncryptionLayer(FileSys::VirtualFile base_, Key256 key_)
     : EncryptionLayer(std::move(base_)), cipher(key_, Mode::XTS) {}
 
-size_t XTSEncryptionLayer::Read(u8* data, size_t length, size_t offset) const {
+std::size_t XTSEncryptionLayer::Read(u8* data, std::size_t length, std::size_t offset) const {
     if (length == 0)
         return 0;
 
@@ -46,7 +46,7 @@ size_t XTSEncryptionLayer::Read(u8* data, size_t length, size_t offset) const {
         block.resize(XTS_SECTOR_SIZE);
     cipher.XTSTranscode(block.data(), block.size(), block.data(),
                         (offset - sector_offset) / XTS_SECTOR_SIZE, XTS_SECTOR_SIZE, Op::Decrypt);
-    const size_t read = XTS_SECTOR_SIZE - sector_offset;
+    const std::size_t read = XTS_SECTOR_SIZE - sector_offset;
 
     if (length + sector_offset < XTS_SECTOR_SIZE) {
         std::memcpy(data, block.data() + sector_offset, std::min<u64>(length, read));
diff --git a/src/core/crypto/xts_encryption_layer.h b/src/core/crypto/xts_encryption_layer.h
index 7a1f1dc64..5f8f00fe7 100644
--- a/src/core/crypto/xts_encryption_layer.h
+++ b/src/core/crypto/xts_encryption_layer.h
@@ -15,7 +15,7 @@ class XTSEncryptionLayer : public EncryptionLayer {
 public:
     XTSEncryptionLayer(FileSys::VirtualFile base, Key256 key);
 
-    size_t Read(u8* data, size_t length, size_t offset) const override;
+    std::size_t Read(u8* data, std::size_t length, std::size_t offset) const override;
 
 private:
     // Must be mutable as operations modify cipher contexts.
diff --git a/src/core/file_sys/card_image.cpp b/src/core/file_sys/card_image.cpp
index 8218893b2..edfc1bbd4 100644
--- a/src/core/file_sys/card_image.cpp
+++ b/src/core/file_sys/card_image.cpp
@@ -41,13 +41,14 @@ XCI::XCI(VirtualFile file_) : file(std::move(file_)), partitions(0x4) {
 
     for (XCIPartition partition :
          {XCIPartition::Update, XCIPartition::Normal, XCIPartition::Secure, XCIPartition::Logo}) {
-        auto raw = main_hfs.GetFile(partition_names[static_cast<size_t>(partition)]);
+        auto raw = main_hfs.GetFile(partition_names[static_cast<std::size_t>(partition)]);
         if (raw != nullptr)
-            partitions[static_cast<size_t>(partition)] = std::make_shared<PartitionFilesystem>(raw);
+            partitions[static_cast<std::size_t>(partition)] =
+                std::make_shared<PartitionFilesystem>(raw);
     }
 
     secure_partition = std::make_shared<NSP>(
-        main_hfs.GetFile(partition_names[static_cast<size_t>(XCIPartition::Secure)]));
+        main_hfs.GetFile(partition_names[static_cast<std::size_t>(XCIPartition::Secure)]));
 
     const auto secure_ncas = secure_partition->GetNCAsCollapsed();
     std::copy(secure_ncas.begin(), secure_ncas.end(), std::back_inserter(ncas));
@@ -92,7 +93,7 @@ Loader::ResultStatus XCI::GetProgramNCAStatus() const {
 }
 
 VirtualDir XCI::GetPartition(XCIPartition partition) const {
-    return partitions[static_cast<size_t>(partition)];
+    return partitions[static_cast<std::size_t>(partition)];
 }
 
 std::shared_ptr<NSP> XCI::GetSecurePartitionNSP() const {
@@ -168,11 +169,11 @@ bool XCI::ReplaceFileWithSubdirectory(VirtualFile file, VirtualDir dir) {
 }
 
 Loader::ResultStatus XCI::AddNCAFromPartition(XCIPartition part) {
-    if (partitions[static_cast<size_t>(part)] == nullptr) {
+    if (partitions[static_cast<std::size_t>(part)] == nullptr) {
         return Loader::ResultStatus::ErrorXCIMissingPartition;
     }
 
-    for (const VirtualFile& file : partitions[static_cast<size_t>(part)]->GetFiles()) {
+    for (const VirtualFile& file : partitions[static_cast<std::size_t>(part)]->GetFiles()) {
         if (file->GetExtension() != "nca")
             continue;
         auto nca = std::make_shared<NCA>(file);
@@ -187,7 +188,7 @@ Loader::ResultStatus XCI::AddNCAFromPartition(XCIPartition part) {
         } else {
             const u16 error_id = static_cast<u16>(nca->GetStatus());
             LOG_CRITICAL(Loader, "Could not load NCA {}/{}, failed with error code {:04X} ({})",
-                         partition_names[static_cast<size_t>(part)], nca->GetName(), error_id,
+                         partition_names[static_cast<std::size_t>(part)], nca->GetName(), error_id,
                          nca->GetStatus());
         }
     }
diff --git a/src/core/file_sys/content_archive.cpp b/src/core/file_sys/content_archive.cpp
index 79bfb6fec..45fc0b574 100644
--- a/src/core/file_sys/content_archive.cpp
+++ b/src/core/file_sys/content_archive.cpp
@@ -298,11 +298,11 @@ NCA::NCA(VirtualFile file_, VirtualFile bktr_base_romfs_, u64 bktr_base_ivfc_off
         auto section = sections[i];
 
         if (section.raw.header.filesystem_type == NCASectionFilesystemType::ROMFS) {
-            const size_t base_offset =
+            const std::size_t base_offset =
                 header.section_tables[i].media_offset * MEDIA_OFFSET_MULTIPLIER;
             ivfc_offset = section.romfs.ivfc.levels[IVFC_MAX_LEVEL - 1].offset;
-            const size_t romfs_offset = base_offset + ivfc_offset;
-            const size_t romfs_size = section.romfs.ivfc.levels[IVFC_MAX_LEVEL - 1].size;
+            const std::size_t romfs_offset = base_offset + ivfc_offset;
+            const std::size_t romfs_size = section.romfs.ivfc.levels[IVFC_MAX_LEVEL - 1].size;
             auto raw = std::make_shared<OffsetVfsFile>(file, romfs_size, romfs_offset);
             auto dec = Decrypt(section, raw, romfs_offset);
 
diff --git a/src/core/file_sys/directory.h b/src/core/file_sys/directory.h
index 3759e743a..12bb90ec8 100644
--- a/src/core/file_sys/directory.h
+++ b/src/core/file_sys/directory.h
@@ -25,7 +25,7 @@ enum EntryType : u8 {
 struct Entry {
     Entry(std::string_view view, EntryType entry_type, u64 entry_size)
         : type{entry_type}, file_size{entry_size} {
-        const size_t copy_size = view.copy(filename, std::size(filename) - 1);
+        const std::size_t copy_size = view.copy(filename, std::size(filename) - 1);
         filename[copy_size] = '\0';
     }
 
diff --git a/src/core/file_sys/nca_metadata.cpp b/src/core/file_sys/nca_metadata.cpp
index cdfbc5aaf..479916b69 100644
--- a/src/core/file_sys/nca_metadata.cpp
+++ b/src/core/file_sys/nca_metadata.cpp
@@ -11,11 +11,11 @@
 namespace FileSys {
 
 bool operator>=(TitleType lhs, TitleType rhs) {
-    return static_cast<size_t>(lhs) >= static_cast<size_t>(rhs);
+    return static_cast<std::size_t>(lhs) >= static_cast<std::size_t>(rhs);
 }
 
 bool operator<=(TitleType lhs, TitleType rhs) {
-    return static_cast<size_t>(lhs) <= static_cast<size_t>(rhs);
+    return static_cast<std::size_t>(lhs) <= static_cast<std::size_t>(rhs);
 }
 
 CNMT::CNMT(VirtualFile file) {
diff --git a/src/core/file_sys/nca_patch.cpp b/src/core/file_sys/nca_patch.cpp
index 6fc5bd7d8..0090cc6c4 100644
--- a/src/core/file_sys/nca_patch.cpp
+++ b/src/core/file_sys/nca_patch.cpp
@@ -22,11 +22,11 @@ BKTR::BKTR(VirtualFile base_romfs_, VirtualFile bktr_romfs_, RelocationBlock rel
       base_romfs(std::move(base_romfs_)), bktr_romfs(std::move(bktr_romfs_)),
       encrypted(is_encrypted_), key(key_), base_offset(base_offset_), ivfc_offset(ivfc_offset_),
       section_ctr(section_ctr_) {
-    for (size_t i = 0; i < relocation.number_buckets - 1; ++i) {
+    for (std::size_t i = 0; i < relocation.number_buckets - 1; ++i) {
         relocation_buckets[i].entries.push_back({relocation.base_offsets[i + 1], 0, 0});
     }
 
-    for (size_t i = 0; i < subsection.number_buckets - 1; ++i) {
+    for (std::size_t i = 0; i < subsection.number_buckets - 1; ++i) {
         subsection_buckets[i].entries.push_back({subsection_buckets[i + 1].entries[0].address_patch,
                                                  {0},
                                                  subsection_buckets[i + 1].entries[0].ctr});
@@ -37,7 +37,7 @@ BKTR::BKTR(VirtualFile base_romfs_, VirtualFile bktr_romfs_, RelocationBlock rel
 
 BKTR::~BKTR() = default;
 
-size_t BKTR::Read(u8* data, size_t length, size_t offset) const {
+std::size_t BKTR::Read(u8* data, std::size_t length, std::size_t offset) const {
     // Read out of bounds.
     if (offset >= relocation.size)
         return 0;
@@ -69,14 +69,14 @@ size_t BKTR::Read(u8* data, size_t length, size_t offset) const {
     std::vector<u8> iv(16);
     auto subsection_ctr = subsection.ctr;
     auto offset_iv = section_offset + base_offset;
-    for (size_t i = 0; i < section_ctr.size(); ++i)
+    for (std::size_t i = 0; i < section_ctr.size(); ++i)
         iv[i] = section_ctr[0x8 - i - 1];
     offset_iv >>= 4;
-    for (size_t i = 0; i < sizeof(u64); ++i) {
+    for (std::size_t i = 0; i < sizeof(u64); ++i) {
         iv[0xF - i] = static_cast<u8>(offset_iv & 0xFF);
         offset_iv >>= 8;
     }
-    for (size_t i = 0; i < sizeof(u32); ++i) {
+    for (std::size_t i = 0; i < sizeof(u32); ++i) {
         iv[0x7 - i] = static_cast<u8>(subsection_ctr & 0xFF);
         subsection_ctr >>= 8;
     }
@@ -110,8 +110,8 @@ size_t BKTR::Read(u8* data, size_t length, size_t offset) const {
 }
 
 template <bool Subsection, typename BlockType, typename BucketType>
-std::pair<size_t, size_t> BKTR::SearchBucketEntry(u64 offset, BlockType block,
-                                                  BucketType buckets) const {
+std::pair<std::size_t, std::size_t> BKTR::SearchBucketEntry(u64 offset, BlockType block,
+                                                            BucketType buckets) const {
     if constexpr (Subsection) {
         const auto last_bucket = buckets[block.number_buckets - 1];
         if (offset >= last_bucket.entries[last_bucket.number_entries].address_patch)
@@ -120,18 +120,18 @@ std::pair<size_t, size_t> BKTR::SearchBucketEntry(u64 offset, BlockType block,
         ASSERT_MSG(offset <= block.size, "Offset is out of bounds in BKTR relocation block.");
     }
 
-    size_t bucket_id = std::count_if(block.base_offsets.begin() + 1,
-                                     block.base_offsets.begin() + block.number_buckets,
-                                     [&offset](u64 base_offset) { return base_offset <= offset; });
+    std::size_t bucket_id = std::count_if(
+        block.base_offsets.begin() + 1, block.base_offsets.begin() + block.number_buckets,
+        [&offset](u64 base_offset) { return base_offset <= offset; });
 
     const auto bucket = buckets[bucket_id];
 
     if (bucket.number_entries == 1)
         return {bucket_id, 0};
 
-    size_t low = 0;
-    size_t mid = 0;
-    size_t high = bucket.number_entries - 1;
+    std::size_t low = 0;
+    std::size_t mid = 0;
+    std::size_t high = bucket.number_entries - 1;
     while (low <= high) {
         mid = (low + high) / 2;
         if (bucket.entries[mid].address_patch > offset) {
@@ -179,11 +179,11 @@ std::string BKTR::GetName() const {
     return base_romfs->GetName();
 }
 
-size_t BKTR::GetSize() const {
+std::size_t BKTR::GetSize() const {
     return relocation.size;
 }
 
-bool BKTR::Resize(size_t new_size) {
+bool BKTR::Resize(std::size_t new_size) {
     return false;
 }
 
@@ -199,7 +199,7 @@ bool BKTR::IsReadable() const {
     return true;
 }
 
-size_t BKTR::Write(const u8* data, size_t length, size_t offset) {
+std::size_t BKTR::Write(const u8* data, std::size_t length, std::size_t offset) {
     return 0;
 }
 
diff --git a/src/core/file_sys/nca_patch.h b/src/core/file_sys/nca_patch.h
index 381f3504f..8e64e8378 100644
--- a/src/core/file_sys/nca_patch.h
+++ b/src/core/file_sys/nca_patch.h
@@ -98,13 +98,13 @@ public:
          Core::Crypto::Key128 key, u64 base_offset, u64 ivfc_offset, std::array<u8, 8> section_ctr);
     ~BKTR() override;
 
-    size_t Read(u8* data, size_t length, size_t offset) const override;
+    std::size_t Read(u8* data, std::size_t length, std::size_t offset) const override;
 
     std::string GetName() const override;
 
-    size_t GetSize() const override;
+    std::size_t GetSize() const override;
 
-    bool Resize(size_t new_size) override;
+    bool Resize(std::size_t new_size) override;
 
     std::shared_ptr<VfsDirectory> GetContainingDirectory() const override;
 
@@ -112,14 +112,14 @@ public:
 
     bool IsReadable() const override;
 
-    size_t Write(const u8* data, size_t length, size_t offset) override;
+    std::size_t Write(const u8* data, std::size_t length, std::size_t offset) override;
 
     bool Rename(std::string_view name) override;
 
 private:
     template <bool Subsection, typename BlockType, typename BucketType>
-    std::pair<size_t, size_t> SearchBucketEntry(u64 offset, BlockType block,
-                                                BucketType buckets) const;
+    std::pair<std::size_t, std::size_t> SearchBucketEntry(u64 offset, BlockType block,
+                                                          BucketType buckets) const;
 
     RelocationEntry GetRelocationEntry(u64 offset) const;
     RelocationEntry GetNextRelocationEntry(u64 offset) const;
diff --git a/src/core/file_sys/partition_filesystem.cpp b/src/core/file_sys/partition_filesystem.cpp
index c377edc9c..f5b3b0175 100644
--- a/src/core/file_sys/partition_filesystem.cpp
+++ b/src/core/file_sys/partition_filesystem.cpp
@@ -42,21 +42,21 @@ PartitionFilesystem::PartitionFilesystem(std::shared_ptr<VfsFile> file) {
 
     is_hfs = pfs_header.magic == Common::MakeMagic('H', 'F', 'S', '0');
 
-    size_t entry_size = is_hfs ? sizeof(HFSEntry) : sizeof(PFSEntry);
-    size_t metadata_size =
+    std::size_t entry_size = is_hfs ? sizeof(HFSEntry) : sizeof(PFSEntry);
+    std::size_t metadata_size =
         sizeof(Header) + (pfs_header.num_entries * entry_size) + pfs_header.strtab_size;
 
     // Actually read in now...
     std::vector<u8> file_data = file->ReadBytes(metadata_size);
-    const size_t total_size = file_data.size();
+    const std::size_t total_size = file_data.size();
 
     if (total_size != metadata_size) {
         status = Loader::ResultStatus::ErrorIncorrectPFSFileSize;
         return;
     }
 
-    size_t entries_offset = sizeof(Header);
-    size_t strtab_offset = entries_offset + (pfs_header.num_entries * entry_size);
+    std::size_t entries_offset = sizeof(Header);
+    std::size_t strtab_offset = entries_offset + (pfs_header.num_entries * entry_size);
     content_offset = strtab_offset + pfs_header.strtab_size;
     for (u16 i = 0; i < pfs_header.num_entries; i++) {
         FSEntry entry;
diff --git a/src/core/file_sys/partition_filesystem.h b/src/core/file_sys/partition_filesystem.h
index be7bc32a8..e80d2456b 100644
--- a/src/core/file_sys/partition_filesystem.h
+++ b/src/core/file_sys/partition_filesystem.h
@@ -79,7 +79,7 @@ private:
 
     Header pfs_header{};
     bool is_hfs = false;
-    size_t content_offset = 0;
+    std::size_t content_offset = 0;
 
     std::vector<VirtualFile> pfs_files;
     std::vector<VirtualDir> pfs_dirs;
diff --git a/src/core/file_sys/patch_manager.cpp b/src/core/file_sys/patch_manager.cpp
index 6cecab336..b37b4c68b 100644
--- a/src/core/file_sys/patch_manager.cpp
+++ b/src/core/file_sys/patch_manager.cpp
@@ -21,7 +21,7 @@ constexpr u64 SINGLE_BYTE_MODULUS = 0x100;
 std::string FormatTitleVersion(u32 version, TitleVersionFormat format) {
     std::array<u8, sizeof(u32)> bytes{};
     bytes[0] = version % SINGLE_BYTE_MODULUS;
-    for (size_t i = 1; i < bytes.size(); ++i) {
+    for (std::size_t i = 1; i < bytes.size(); ++i) {
         version /= SINGLE_BYTE_MODULUS;
         bytes[i] = version % SINGLE_BYTE_MODULUS;
     }
@@ -36,7 +36,7 @@ constexpr std::array<const char*, 1> PATCH_TYPE_NAMES{
 };
 
 std::string FormatPatchTypeName(PatchType type) {
-    return PATCH_TYPE_NAMES.at(static_cast<size_t>(type));
+    return PATCH_TYPE_NAMES.at(static_cast<std::size_t>(type));
 }
 
 PatchManager::PatchManager(u64 title_id) : title_id(title_id) {}
diff --git a/src/core/file_sys/program_metadata.cpp b/src/core/file_sys/program_metadata.cpp
index ccb685526..9d19aaa6d 100644
--- a/src/core/file_sys/program_metadata.cpp
+++ b/src/core/file_sys/program_metadata.cpp
@@ -13,7 +13,7 @@
 namespace FileSys {
 
 Loader::ResultStatus ProgramMetadata::Load(VirtualFile file) {
-    size_t total_size = static_cast<size_t>(file->GetSize());
+    std::size_t total_size = static_cast<std::size_t>(file->GetSize());
     if (total_size < sizeof(Header))
         return Loader::ResultStatus::ErrorBadNPDMHeader;
 
diff --git a/src/core/file_sys/registered_cache.cpp b/src/core/file_sys/registered_cache.cpp
index 7361a67be..dad7ae10b 100644
--- a/src/core/file_sys/registered_cache.cpp
+++ b/src/core/file_sys/registered_cache.cpp
@@ -62,11 +62,11 @@ static std::string GetCNMTName(TitleType type, u64 title_id) {
         "" ///< Currently unknown 'DeltaTitle'
     };
 
-    auto index = static_cast<size_t>(type);
+    auto index = static_cast<std::size_t>(type);
     // If the index is after the jump in TitleType, subtract it out.
-    if (index >= static_cast<size_t>(TitleType::Application)) {
-        index -= static_cast<size_t>(TitleType::Application) -
-                 static_cast<size_t>(TitleType::FirmwarePackageB);
+    if (index >= static_cast<std::size_t>(TitleType::Application)) {
+        index -= static_cast<std::size_t>(TitleType::Application) -
+                 static_cast<std::size_t>(TitleType::FirmwarePackageB);
     }
     return fmt::format("{}_{:016x}.cnmt", TITLE_TYPE_NAMES[index], title_id);
 }
@@ -105,7 +105,7 @@ VirtualFile RegisteredCache::OpenFileOrDirectoryConcat(const VirtualDir& dir,
         } else {
             std::vector<VirtualFile> concat;
             // Since the files are a two-digit hex number, max is FF.
-            for (size_t i = 0; i < 0x100; ++i) {
+            for (std::size_t i = 0; i < 0x100; ++i) {
                 auto next = nca_dir->GetFile(fmt::format("{:02X}", i));
                 if (next != nullptr) {
                     concat.push_back(std::move(next));
diff --git a/src/core/file_sys/romfs.cpp b/src/core/file_sys/romfs.cpp
index e490c8ace..9f6e41cdf 100644
--- a/src/core/file_sys/romfs.cpp
+++ b/src/core/file_sys/romfs.cpp
@@ -49,7 +49,7 @@ struct FileEntry {
 static_assert(sizeof(FileEntry) == 0x20, "FileEntry has incorrect size.");
 
 template <typename Entry>
-static std::pair<Entry, std::string> GetEntry(const VirtualFile& file, size_t offset) {
+static std::pair<Entry, std::string> GetEntry(const VirtualFile& file, std::size_t offset) {
     Entry entry{};
     if (file->ReadObject(&entry, offset) != sizeof(Entry))
         return {};
@@ -59,8 +59,8 @@ static std::pair<Entry, std::string> GetEntry(const VirtualFile& file, size_t of
     return {entry, string};
 }
 
-void ProcessFile(VirtualFile file, size_t file_offset, size_t data_offset, u32 this_file_offset,
-                 std::shared_ptr<VectorVfsDirectory> parent) {
+void ProcessFile(VirtualFile file, std::size_t file_offset, std::size_t data_offset,
+                 u32 this_file_offset, std::shared_ptr<VectorVfsDirectory> parent) {
     while (true) {
         auto entry = GetEntry<FileEntry>(file, file_offset + this_file_offset);
 
@@ -74,8 +74,9 @@ void ProcessFile(VirtualFile file, size_t file_offset, size_t data_offset, u32 t
     }
 }
 
-void ProcessDirectory(VirtualFile file, size_t dir_offset, size_t file_offset, size_t data_offset,
-                      u32 this_dir_offset, std::shared_ptr<VectorVfsDirectory> parent) {
+void ProcessDirectory(VirtualFile file, std::size_t dir_offset, std::size_t file_offset,
+                      std::size_t data_offset, u32 this_dir_offset,
+                      std::shared_ptr<VectorVfsDirectory> parent) {
     while (true) {
         auto entry = GetEntry<DirectoryEntry>(file, dir_offset + this_dir_offset);
         auto current = std::make_shared<VectorVfsDirectory>(
diff --git a/src/core/file_sys/vfs.cpp b/src/core/file_sys/vfs.cpp
index 146c839f4..d7b52abfd 100644
--- a/src/core/file_sys/vfs.cpp
+++ b/src/core/file_sys/vfs.cpp
@@ -167,18 +167,18 @@ std::string VfsFile::GetExtension() const {
 
 VfsDirectory::~VfsDirectory() = default;
 
-boost::optional<u8> VfsFile::ReadByte(size_t offset) const {
+boost::optional<u8> VfsFile::ReadByte(std::size_t offset) const {
     u8 out{};
-    size_t size = Read(&out, 1, offset);
+    std::size_t size = Read(&out, 1, offset);
     if (size == 1)
         return out;
 
     return boost::none;
 }
 
-std::vector<u8> VfsFile::ReadBytes(size_t size, size_t offset) const {
+std::vector<u8> VfsFile::ReadBytes(std::size_t size, std::size_t offset) const {
     std::vector<u8> out(size);
-    size_t read_size = Read(out.data(), size, offset);
+    std::size_t read_size = Read(out.data(), size, offset);
     out.resize(read_size);
     return out;
 }
@@ -187,11 +187,11 @@ std::vector<u8> VfsFile::ReadAllBytes() const {
     return ReadBytes(GetSize());
 }
 
-bool VfsFile::WriteByte(u8 data, size_t offset) {
+bool VfsFile::WriteByte(u8 data, std::size_t offset) {
     return Write(&data, 1, offset) == 1;
 }
 
-size_t VfsFile::WriteBytes(const std::vector<u8>& data, size_t offset) {
+std::size_t VfsFile::WriteBytes(const std::vector<u8>& data, std::size_t offset) {
     return Write(data.data(), data.size(), offset);
 }
 
@@ -215,7 +215,7 @@ std::shared_ptr<VfsFile> VfsDirectory::GetFileRelative(std::string_view path) co
     }
 
     auto dir = GetSubdirectory(vec[0]);
-    for (size_t component = 1; component < vec.size() - 1; ++component) {
+    for (std::size_t component = 1; component < vec.size() - 1; ++component) {
         if (dir == nullptr) {
             return nullptr;
         }
@@ -249,7 +249,7 @@ std::shared_ptr<VfsDirectory> VfsDirectory::GetDirectoryRelative(std::string_vie
     }
 
     auto dir = GetSubdirectory(vec[0]);
-    for (size_t component = 1; component < vec.size(); ++component) {
+    for (std::size_t component = 1; component < vec.size(); ++component) {
         if (dir == nullptr) {
             return nullptr;
         }
@@ -286,7 +286,7 @@ bool VfsDirectory::IsRoot() const {
     return GetParentDirectory() == nullptr;
 }
 
-size_t VfsDirectory::GetSize() const {
+std::size_t VfsDirectory::GetSize() const {
     const auto& files = GetFiles();
     const auto sum_sizes = [](const auto& range) {
         return std::accumulate(range.begin(), range.end(), 0ULL,
@@ -434,13 +434,13 @@ bool ReadOnlyVfsDirectory::Rename(std::string_view name) {
     return false;
 }
 
-bool DeepEquals(const VirtualFile& file1, const VirtualFile& file2, size_t block_size) {
+bool DeepEquals(const VirtualFile& file1, const VirtualFile& file2, std::size_t block_size) {
     if (file1->GetSize() != file2->GetSize())
         return false;
 
     std::vector<u8> f1_v(block_size);
     std::vector<u8> f2_v(block_size);
-    for (size_t i = 0; i < file1->GetSize(); i += block_size) {
+    for (std::size_t i = 0; i < file1->GetSize(); i += block_size) {
         auto f1_vs = file1->Read(f1_v.data(), block_size, i);
         auto f2_vs = file2->Read(f2_v.data(), block_size, i);
 
diff --git a/src/core/file_sys/vfs.h b/src/core/file_sys/vfs.h
index 5142a3e86..74489b452 100644
--- a/src/core/file_sys/vfs.h
+++ b/src/core/file_sys/vfs.h
@@ -92,9 +92,9 @@ public:
     // Retrieves the extension of the file name.
     virtual std::string GetExtension() const;
     // Retrieves the size of the file.
-    virtual size_t GetSize() const = 0;
+    virtual std::size_t GetSize() const = 0;
     // Resizes the file to new_size. Returns whether or not the operation was successful.
-    virtual bool Resize(size_t new_size) = 0;
+    virtual bool Resize(std::size_t new_size) = 0;
     // Gets a pointer to the directory containing this file, returning nullptr if there is none.
     virtual std::shared_ptr<VfsDirectory> GetContainingDirectory() const = 0;
 
@@ -105,15 +105,15 @@ public:
 
     // The primary method of reading from the file. Reads length bytes into data starting at offset
     // into file. Returns number of bytes successfully read.
-    virtual size_t Read(u8* data, size_t length, size_t offset = 0) const = 0;
+    virtual std::size_t Read(u8* data, std::size_t length, std::size_t offset = 0) const = 0;
     // The primary method of writing to the file. Writes length bytes from data starting at offset
     // into file. Returns number of bytes successfully written.
-    virtual size_t Write(const u8* data, size_t length, size_t offset = 0) = 0;
+    virtual std::size_t Write(const u8* data, std::size_t length, std::size_t offset = 0) = 0;
 
     // Reads exactly one byte at the offset provided, returning boost::none on error.
-    virtual boost::optional<u8> ReadByte(size_t offset = 0) const;
+    virtual boost::optional<u8> ReadByte(std::size_t offset = 0) const;
     // Reads size bytes starting at offset in file into a vector.
-    virtual std::vector<u8> ReadBytes(size_t size, size_t offset = 0) const;
+    virtual std::vector<u8> ReadBytes(std::size_t size, std::size_t offset = 0) const;
     // Reads all the bytes from the file into a vector. Equivalent to 'file->Read(file->GetSize(),
     // 0)'
     virtual std::vector<u8> ReadAllBytes() const;
@@ -121,7 +121,7 @@ public:
     // Reads an array of type T, size number_elements starting at offset.
     // Returns the number of bytes (sizeof(T)*number_elements) read successfully.
     template <typename T>
-    size_t ReadArray(T* data, size_t number_elements, size_t offset = 0) const {
+    std::size_t ReadArray(T* data, std::size_t number_elements, std::size_t offset = 0) const {
         static_assert(std::is_trivially_copyable_v<T>, "Data type must be trivially copyable.");
 
         return Read(reinterpret_cast<u8*>(data), number_elements * sizeof(T), offset);
@@ -130,7 +130,7 @@ public:
     // Reads size bytes into the memory starting at data starting at offset into the file.
     // Returns the number of bytes read successfully.
     template <typename T>
-    size_t ReadBytes(T* data, size_t size, size_t offset = 0) const {
+    std::size_t ReadBytes(T* data, std::size_t size, std::size_t offset = 0) const {
         static_assert(std::is_trivially_copyable_v<T>, "Data type must be trivially copyable.");
         return Read(reinterpret_cast<u8*>(data), size, offset);
     }
@@ -138,22 +138,22 @@ public:
     // Reads one object of type T starting at offset in file.
     // Returns the number of bytes read successfully (sizeof(T)).
     template <typename T>
-    size_t ReadObject(T* data, size_t offset = 0) const {
+    std::size_t ReadObject(T* data, std::size_t offset = 0) const {
         static_assert(std::is_trivially_copyable_v<T>, "Data type must be trivially copyable.");
         return Read(reinterpret_cast<u8*>(data), sizeof(T), offset);
     }
 
     // Writes exactly one byte to offset in file and retuns whether or not the byte was written
     // successfully.
-    virtual bool WriteByte(u8 data, size_t offset = 0);
+    virtual bool WriteByte(u8 data, std::size_t offset = 0);
     // Writes a vector of bytes to offset in file and returns the number of bytes successfully
     // written.
-    virtual size_t WriteBytes(const std::vector<u8>& data, size_t offset = 0);
+    virtual std::size_t WriteBytes(const std::vector<u8>& data, std::size_t offset = 0);
 
     // Writes an array of type T, size number_elements to offset in file.
     // Returns the number of bytes (sizeof(T)*number_elements) written successfully.
     template <typename T>
-    size_t WriteArray(const T* data, size_t number_elements, size_t offset = 0) {
+    std::size_t WriteArray(const T* data, std::size_t number_elements, std::size_t offset = 0) {
         static_assert(std::is_trivially_copyable_v<T>, "Data type must be trivially copyable.");
         return Write(data, number_elements * sizeof(T), offset);
     }
@@ -161,7 +161,7 @@ public:
     // Writes size bytes starting at memory location data to offset in file.
     // Returns the number of bytes written successfully.
     template <typename T>
-    size_t WriteBytes(const T* data, size_t size, size_t offset = 0) {
+    std::size_t WriteBytes(const T* data, std::size_t size, std::size_t offset = 0) {
         static_assert(std::is_trivially_copyable_v<T>, "Data type must be trivially copyable.");
         return Write(reinterpret_cast<const u8*>(data), size, offset);
     }
@@ -169,7 +169,7 @@ public:
     // Writes one object of type T to offset in file.
     // Returns the number of bytes written successfully (sizeof(T)).
     template <typename T>
-    size_t WriteObject(const T& data, size_t offset = 0) {
+    std::size_t WriteObject(const T& data, std::size_t offset = 0) {
         static_assert(std::is_trivially_copyable_v<T>, "Data type must be trivially copyable.");
         return Write(&data, sizeof(T), offset);
     }
@@ -221,7 +221,7 @@ public:
     // Returns the name of the directory.
     virtual std::string GetName() const = 0;
     // Returns the total size of all files and subdirectories in this directory.
-    virtual size_t GetSize() const;
+    virtual std::size_t GetSize() const;
     // Returns the parent directory of this directory. Returns nullptr if this directory is root or
     // has no parent.
     virtual std::shared_ptr<VfsDirectory> GetParentDirectory() const = 0;
@@ -311,7 +311,7 @@ public:
 };
 
 // Compare the two files, byte-for-byte, in increments specificed by block_size
-bool DeepEquals(const VirtualFile& file1, const VirtualFile& file2, size_t block_size = 0x200);
+bool DeepEquals(const VirtualFile& file1, const VirtualFile& file2, std::size_t block_size = 0x200);
 
 // A method that copies the raw data between two different implementations of VirtualFile. If you
 // are using the same implementation, it is probably better to use the Copy method in the parent
diff --git a/src/core/file_sys/vfs_concat.cpp b/src/core/file_sys/vfs_concat.cpp
index e6bf586a3..25a980cbb 100644
--- a/src/core/file_sys/vfs_concat.cpp
+++ b/src/core/file_sys/vfs_concat.cpp
@@ -20,7 +20,7 @@ VirtualFile ConcatenateFiles(std::vector<VirtualFile> files, std::string name) {
 
 ConcatenatedVfsFile::ConcatenatedVfsFile(std::vector<VirtualFile> files_, std::string name)
     : name(std::move(name)) {
-    size_t next_offset = 0;
+    std::size_t next_offset = 0;
     for (const auto& file : files_) {
         files[next_offset] = file;
         next_offset += file->GetSize();
@@ -35,13 +35,13 @@ std::string ConcatenatedVfsFile::GetName() const {
     return files.begin()->second->GetName();
 }
 
-size_t ConcatenatedVfsFile::GetSize() const {
+std::size_t ConcatenatedVfsFile::GetSize() const {
     if (files.empty())
         return 0;
     return files.rbegin()->first + files.rbegin()->second->GetSize();
 }
 
-bool ConcatenatedVfsFile::Resize(size_t new_size) {
+bool ConcatenatedVfsFile::Resize(std::size_t new_size) {
     return false;
 }
 
@@ -59,7 +59,7 @@ bool ConcatenatedVfsFile::IsReadable() const {
     return true;
 }
 
-size_t ConcatenatedVfsFile::Read(u8* data, size_t length, size_t offset) const {
+std::size_t ConcatenatedVfsFile::Read(u8* data, std::size_t length, std::size_t offset) const {
     auto entry = files.end();
     for (auto iter = files.begin(); iter != files.end(); ++iter) {
         if (iter->first > offset) {
@@ -84,7 +84,7 @@ size_t ConcatenatedVfsFile::Read(u8* data, size_t length, size_t offset) const {
     return entry->second->Read(data, length, offset - entry->first);
 }
 
-size_t ConcatenatedVfsFile::Write(const u8* data, size_t length, size_t offset) {
+std::size_t ConcatenatedVfsFile::Write(const u8* data, std::size_t length, std::size_t offset) {
     return 0;
 }
 
diff --git a/src/core/file_sys/vfs_concat.h b/src/core/file_sys/vfs_concat.h
index 686d32515..31775db7e 100644
--- a/src/core/file_sys/vfs_concat.h
+++ b/src/core/file_sys/vfs_concat.h
@@ -23,13 +23,13 @@ class ConcatenatedVfsFile : public VfsFile {
 
 public:
     std::string GetName() const override;
-    size_t GetSize() const override;
-    bool Resize(size_t new_size) override;
+    std::size_t GetSize() const override;
+    bool Resize(std::size_t new_size) override;
     std::shared_ptr<VfsDirectory> GetContainingDirectory() const override;
     bool IsWritable() const override;
     bool IsReadable() const override;
-    size_t Read(u8* data, size_t length, size_t offset) const override;
-    size_t Write(const u8* data, size_t length, size_t offset) override;
+    std::size_t Read(u8* data, std::size_t length, std::size_t offset) const override;
+    std::size_t Write(const u8* data, std::size_t length, std::size_t offset) override;
     bool Rename(std::string_view name) override;
 
 private:
diff --git a/src/core/file_sys/vfs_offset.cpp b/src/core/file_sys/vfs_offset.cpp
index 847cde2f5..f5ed291ea 100644
--- a/src/core/file_sys/vfs_offset.cpp
+++ b/src/core/file_sys/vfs_offset.cpp
@@ -9,7 +9,7 @@
 
 namespace FileSys {
 
-OffsetVfsFile::OffsetVfsFile(std::shared_ptr<VfsFile> file_, size_t size_, size_t offset_,
+OffsetVfsFile::OffsetVfsFile(std::shared_ptr<VfsFile> file_, std::size_t size_, std::size_t offset_,
                              std::string name_, VirtualDir parent_)
     : file(file_), offset(offset_), size(size_), name(std::move(name_)),
       parent(parent_ == nullptr ? file->GetContainingDirectory() : std::move(parent_)) {}
@@ -18,11 +18,11 @@ std::string OffsetVfsFile::GetName() const {
     return name.empty() ? file->GetName() : name;
 }
 
-size_t OffsetVfsFile::GetSize() const {
+std::size_t OffsetVfsFile::GetSize() const {
     return size;
 }
 
-bool OffsetVfsFile::Resize(size_t new_size) {
+bool OffsetVfsFile::Resize(std::size_t new_size) {
     if (offset + new_size < file->GetSize()) {
         size = new_size;
     } else {
@@ -47,22 +47,22 @@ bool OffsetVfsFile::IsReadable() const {
     return file->IsReadable();
 }
 
-size_t OffsetVfsFile::Read(u8* data, size_t length, size_t r_offset) const {
+std::size_t OffsetVfsFile::Read(u8* data, std::size_t length, std::size_t r_offset) const {
     return file->Read(data, TrimToFit(length, r_offset), offset + r_offset);
 }
 
-size_t OffsetVfsFile::Write(const u8* data, size_t length, size_t r_offset) {
+std::size_t OffsetVfsFile::Write(const u8* data, std::size_t length, std::size_t r_offset) {
     return file->Write(data, TrimToFit(length, r_offset), offset + r_offset);
 }
 
-boost::optional<u8> OffsetVfsFile::ReadByte(size_t r_offset) const {
+boost::optional<u8> OffsetVfsFile::ReadByte(std::size_t r_offset) const {
     if (r_offset < size)
         return file->ReadByte(offset + r_offset);
 
     return boost::none;
 }
 
-std::vector<u8> OffsetVfsFile::ReadBytes(size_t r_size, size_t r_offset) const {
+std::vector<u8> OffsetVfsFile::ReadBytes(std::size_t r_size, std::size_t r_offset) const {
     return file->ReadBytes(TrimToFit(r_size, r_offset), offset + r_offset);
 }
 
@@ -70,14 +70,14 @@ std::vector<u8> OffsetVfsFile::ReadAllBytes() const {
     return file->ReadBytes(size, offset);
 }
 
-bool OffsetVfsFile::WriteByte(u8 data, size_t r_offset) {
+bool OffsetVfsFile::WriteByte(u8 data, std::size_t r_offset) {
     if (r_offset < size)
         return file->WriteByte(data, offset + r_offset);
 
     return false;
 }
 
-size_t OffsetVfsFile::WriteBytes(const std::vector<u8>& data, size_t r_offset) {
+std::size_t OffsetVfsFile::WriteBytes(const std::vector<u8>& data, std::size_t r_offset) {
     return file->Write(data.data(), TrimToFit(data.size(), r_offset), offset + r_offset);
 }
 
@@ -85,12 +85,12 @@ bool OffsetVfsFile::Rename(std::string_view name) {
     return file->Rename(name);
 }
 
-size_t OffsetVfsFile::GetOffset() const {
+std::size_t OffsetVfsFile::GetOffset() const {
     return offset;
 }
 
-size_t OffsetVfsFile::TrimToFit(size_t r_size, size_t r_offset) const {
-    return std::clamp(r_size, size_t{0}, size - r_offset);
+std::size_t OffsetVfsFile::TrimToFit(std::size_t r_size, std::size_t r_offset) const {
+    return std::clamp(r_size, std::size_t{0}, size - r_offset);
 }
 
 } // namespace FileSys
diff --git a/src/core/file_sys/vfs_offset.h b/src/core/file_sys/vfs_offset.h
index cb92d1570..34cb180b3 100644
--- a/src/core/file_sys/vfs_offset.h
+++ b/src/core/file_sys/vfs_offset.h
@@ -17,33 +17,33 @@ namespace FileSys {
 // the size of this wrapper.
 class OffsetVfsFile : public VfsFile {
 public:
-    OffsetVfsFile(std::shared_ptr<VfsFile> file, size_t size, size_t offset = 0,
+    OffsetVfsFile(std::shared_ptr<VfsFile> file, std::size_t size, std::size_t offset = 0,
                   std::string new_name = "", VirtualDir new_parent = nullptr);
 
     std::string GetName() const override;
-    size_t GetSize() const override;
-    bool Resize(size_t new_size) override;
+    std::size_t GetSize() const override;
+    bool Resize(std::size_t new_size) override;
     std::shared_ptr<VfsDirectory> GetContainingDirectory() const override;
     bool IsWritable() const override;
     bool IsReadable() const override;
-    size_t Read(u8* data, size_t length, size_t offset) const override;
-    size_t Write(const u8* data, size_t length, size_t offset) override;
-    boost::optional<u8> ReadByte(size_t offset) const override;
-    std::vector<u8> ReadBytes(size_t size, size_t offset) const override;
+    std::size_t Read(u8* data, std::size_t length, std::size_t offset) const override;
+    std::size_t Write(const u8* data, std::size_t length, std::size_t offset) override;
+    boost::optional<u8> ReadByte(std::size_t offset) const override;
+    std::vector<u8> ReadBytes(std::size_t size, std::size_t offset) const override;
     std::vector<u8> ReadAllBytes() const override;
-    bool WriteByte(u8 data, size_t offset) override;
-    size_t WriteBytes(const std::vector<u8>& data, size_t offset) override;
+    bool WriteByte(u8 data, std::size_t offset) override;
+    std::size_t WriteBytes(const std::vector<u8>& data, std::size_t offset) override;
 
     bool Rename(std::string_view name) override;
 
-    size_t GetOffset() const;
+    std::size_t GetOffset() const;
 
 private:
-    size_t TrimToFit(size_t r_size, size_t r_offset) const;
+    std::size_t TrimToFit(std::size_t r_size, std::size_t r_offset) const;
 
     std::shared_ptr<VfsFile> file;
-    size_t offset;
-    size_t size;
+    std::size_t offset;
+    std::size_t size;
     std::string name;
     VirtualDir parent;
 };
diff --git a/src/core/file_sys/vfs_real.cpp b/src/core/file_sys/vfs_real.cpp
index 89b101145..5e242e20f 100644
--- a/src/core/file_sys/vfs_real.cpp
+++ b/src/core/file_sys/vfs_real.cpp
@@ -227,11 +227,11 @@ std::string RealVfsFile::GetName() const {
     return path_components.back();
 }
 
-size_t RealVfsFile::GetSize() const {
+std::size_t RealVfsFile::GetSize() const {
     return backing->GetSize();
 }
 
-bool RealVfsFile::Resize(size_t new_size) {
+bool RealVfsFile::Resize(std::size_t new_size) {
     return backing->Resize(new_size);
 }
 
@@ -247,13 +247,13 @@ bool RealVfsFile::IsReadable() const {
     return (perms & Mode::ReadWrite) != 0;
 }
 
-size_t RealVfsFile::Read(u8* data, size_t length, size_t offset) const {
+std::size_t RealVfsFile::Read(u8* data, std::size_t length, std::size_t offset) const {
     if (!backing->Seek(offset, SEEK_SET))
         return 0;
     return backing->ReadBytes(data, length);
 }
 
-size_t RealVfsFile::Write(const u8* data, size_t length, size_t offset) {
+std::size_t RealVfsFile::Write(const u8* data, std::size_t length, std::size_t offset) {
     if (!backing->Seek(offset, SEEK_SET))
         return 0;
     return backing->WriteBytes(data, length);
diff --git a/src/core/file_sys/vfs_real.h b/src/core/file_sys/vfs_real.h
index 7db86691f..681c43e82 100644
--- a/src/core/file_sys/vfs_real.h
+++ b/src/core/file_sys/vfs_real.h
@@ -48,13 +48,13 @@ public:
     ~RealVfsFile() override;
 
     std::string GetName() const override;
-    size_t GetSize() const override;
-    bool Resize(size_t new_size) override;
+    std::size_t GetSize() const override;
+    bool Resize(std::size_t new_size) override;
     std::shared_ptr<VfsDirectory> GetContainingDirectory() const override;
     bool IsWritable() const override;
     bool IsReadable() const override;
-    size_t Read(u8* data, size_t length, size_t offset) const override;
-    size_t Write(const u8* data, size_t length, size_t offset) override;
+    std::size_t Read(u8* data, std::size_t length, std::size_t offset) const override;
+    std::size_t Write(const u8* data, std::size_t length, std::size_t offset) override;
     bool Rename(std::string_view name) override;
 
 private:
diff --git a/src/core/file_sys/xts_archive.cpp b/src/core/file_sys/xts_archive.cpp
index 4dbc25c55..0173f71c1 100644
--- a/src/core/file_sys/xts_archive.cpp
+++ b/src/core/file_sys/xts_archive.cpp
@@ -25,8 +25,8 @@ namespace FileSys {
 constexpr u64 NAX_HEADER_PADDING_SIZE = 0x4000;
 
 template <typename SourceData, typename SourceKey, typename Destination>
-static bool CalculateHMAC256(Destination* out, const SourceKey* key, size_t key_length,
-                             const SourceData* data, size_t data_length) {
+static bool CalculateHMAC256(Destination* out, const SourceKey* key, std::size_t key_length,
+                             const SourceData* data, std::size_t data_length) {
     mbedtls_md_context_t context;
     mbedtls_md_init(&context);
 
@@ -91,7 +91,7 @@ Loader::ResultStatus NAX::Parse(std::string_view path) {
 
     const auto enc_keys = header->key_area;
 
-    size_t i = 0;
+    std::size_t i = 0;
     for (; i < sd_keys.size(); ++i) {
         std::array<Core::Crypto::Key128, 2> nax_keys{};
         if (!CalculateHMAC256(nax_keys.data(), sd_keys[i].data(), 0x10, std::string(path).c_str(),
@@ -99,7 +99,7 @@ Loader::ResultStatus NAX::Parse(std::string_view path) {
             return Loader::ResultStatus::ErrorNAXKeyHMACFailed;
         }
 
-        for (size_t j = 0; j < nax_keys.size(); ++j) {
+        for (std::size_t j = 0; j < nax_keys.size(); ++j) {
             Core::Crypto::AESCipher<Core::Crypto::Key128> cipher(nax_keys[j],
                                                                  Core::Crypto::Mode::ECB);
             cipher.Transcode(enc_keys[j].data(), 0x10, header->key_area[j].data(),
diff --git a/src/core/gdbstub/gdbstub.cpp b/src/core/gdbstub/gdbstub.cpp
index 332e5c3d0..1b04f68bf 100644
--- a/src/core/gdbstub/gdbstub.cpp
+++ b/src/core/gdbstub/gdbstub.cpp
@@ -65,9 +65,9 @@ constexpr u32 MSG_WAITALL = 8;
 constexpr u32 LR_REGISTER = 30;
 constexpr u32 SP_REGISTER = 31;
 constexpr u32 PC_REGISTER = 32;
-constexpr u32 CPSR_REGISTER = 33;
+constexpr u32 PSTATE_REGISTER = 33;
 constexpr u32 UC_ARM64_REG_Q0 = 34;
-constexpr u32 FPSCR_REGISTER = 66;
+constexpr u32 FPCR_REGISTER = 66;
 
 // TODO/WiP - Used while working on support for FPU
 constexpr u32 TODO_DUMMY_REG_997 = 997;
@@ -116,7 +116,7 @@ constexpr char target_xml[] =
 
     <reg name="pc" bitsize="64" type="code_ptr"/>
 
-    <flags id="cpsr_flags" size="4">
+    <flags id="pstate_flags" size="4">
       <field name="SP" start="0" end="0"/>
       <field name="" start="1" end="1"/>
       <field name="EL" start="2" end="3"/>
@@ -135,7 +135,7 @@ constexpr char target_xml[] =
       <field name="Z" start="30" end="30"/>
       <field name="N" start="31" end="31"/>
     </flags>
-    <reg name="cpsr" bitsize="32" type="cpsr_flags"/>
+    <reg name="pstate" bitsize="32" type="pstate_flags"/>
   </feature>
   <feature name="org.gnu.gdb.aarch64.fpu">
   </feature>
@@ -227,10 +227,10 @@ static u64 RegRead(std::size_t id, Kernel::Thread* thread = nullptr) {
         return thread->context.sp;
     } else if (id == PC_REGISTER) {
         return thread->context.pc;
-    } else if (id == CPSR_REGISTER) {
-        return thread->context.cpsr;
-    } else if (id > CPSR_REGISTER && id < FPSCR_REGISTER) {
-        return thread->context.fpu_registers[id - UC_ARM64_REG_Q0][0];
+    } else if (id == PSTATE_REGISTER) {
+        return thread->context.pstate;
+    } else if (id > PSTATE_REGISTER && id < FPCR_REGISTER) {
+        return thread->context.vector_registers[id - UC_ARM64_REG_Q0][0];
     } else {
         return 0;
     }
@@ -247,10 +247,10 @@ static void RegWrite(std::size_t id, u64 val, Kernel::Thread* thread = nullptr)
         thread->context.sp = val;
     } else if (id == PC_REGISTER) {
         thread->context.pc = val;
-    } else if (id == CPSR_REGISTER) {
-        thread->context.cpsr = val;
-    } else if (id > CPSR_REGISTER && id < FPSCR_REGISTER) {
-        thread->context.fpu_registers[id - (CPSR_REGISTER + 1)][0] = val;
+    } else if (id == PSTATE_REGISTER) {
+        thread->context.pstate = val;
+    } else if (id > PSTATE_REGISTER && id < FPCR_REGISTER) {
+        thread->context.vector_registers[id - (PSTATE_REGISTER + 1)][0] = val;
     }
 }
 
@@ -292,7 +292,7 @@ static u8 NibbleToHex(u8 n) {
  * @param src Pointer to array of output hex string characters.
  * @param len Length of src array.
  */
-static u32 HexToInt(const u8* src, size_t len) {
+static u32 HexToInt(const u8* src, std::size_t len) {
     u32 output = 0;
     while (len-- > 0) {
         output = (output << 4) | HexCharToValue(src[0]);
@@ -307,7 +307,7 @@ static u32 HexToInt(const u8* src, size_t len) {
  * @param src Pointer to array of output hex string characters.
  * @param len Length of src array.
  */
-static u64 HexToLong(const u8* src, size_t len) {
+static u64 HexToLong(const u8* src, std::size_t len) {
     u64 output = 0;
     while (len-- > 0) {
         output = (output << 4) | HexCharToValue(src[0]);
@@ -323,7 +323,7 @@ static u64 HexToLong(const u8* src, size_t len) {
  * @param src Pointer to array of u8 bytes.
  * @param len Length of src array.
  */
-static void MemToGdbHex(u8* dest, const u8* src, size_t len) {
+static void MemToGdbHex(u8* dest, const u8* src, std::size_t len) {
     while (len-- > 0) {
         u8 tmp = *src++;
         *dest++ = NibbleToHex(tmp >> 4);
@@ -338,7 +338,7 @@ static void MemToGdbHex(u8* dest, const u8* src, size_t len) {
  * @param src Pointer to array of output hex string characters.
  * @param len Length of src array.
  */
-static void GdbHexToMem(u8* dest, const u8* src, size_t len) {
+static void GdbHexToMem(u8* dest, const u8* src, std::size_t len) {
     while (len-- > 0) {
         *dest++ = (HexCharToValue(src[0]) << 4) | HexCharToValue(src[1]);
         src += 2;
@@ -406,7 +406,7 @@ static u64 GdbHexToLong(const u8* src) {
 /// Read a byte from the gdb client.
 static u8 ReadByte() {
     u8 c;
-    size_t received_size = recv(gdbserver_socket, reinterpret_cast<char*>(&c), 1, MSG_WAITALL);
+    std::size_t received_size = recv(gdbserver_socket, reinterpret_cast<char*>(&c), 1, MSG_WAITALL);
     if (received_size != 1) {
         LOG_ERROR(Debug_GDBStub, "recv failed: {}", received_size);
         Shutdown();
@@ -416,7 +416,7 @@ static u8 ReadByte() {
 }
 
 /// Calculate the checksum of the current command buffer.
-static u8 CalculateChecksum(const u8* buffer, size_t length) {
+static u8 CalculateChecksum(const u8* buffer, std::size_t length) {
     return static_cast<u8>(std::accumulate(buffer, buffer + length, 0, std::plus<u8>()));
 }
 
@@ -518,7 +518,7 @@ bool CheckBreakpoint(VAddr addr, BreakpointType type) {
  * @param packet Packet to be sent to client.
  */
 static void SendPacket(const char packet) {
-    size_t sent_size = send(gdbserver_socket, &packet, 1, 0);
+    std::size_t sent_size = send(gdbserver_socket, &packet, 1, 0);
     if (sent_size != 1) {
         LOG_ERROR(Debug_GDBStub, "send failed");
     }
@@ -781,11 +781,11 @@ static void ReadRegister() {
         LongToGdbHex(reply, RegRead(id, current_thread));
     } else if (id == PC_REGISTER) {
         LongToGdbHex(reply, RegRead(id, current_thread));
-    } else if (id == CPSR_REGISTER) {
-        IntToGdbHex(reply, (u32)RegRead(id, current_thread));
-    } else if (id >= UC_ARM64_REG_Q0 && id < FPSCR_REGISTER) {
+    } else if (id == PSTATE_REGISTER) {
+        IntToGdbHex(reply, static_cast<u32>(RegRead(id, current_thread)));
+    } else if (id >= UC_ARM64_REG_Q0 && id < FPCR_REGISTER) {
         LongToGdbHex(reply, RegRead(id, current_thread));
-    } else if (id == FPSCR_REGISTER) {
+    } else if (id == FPCR_REGISTER) {
         LongToGdbHex(reply, RegRead(TODO_DUMMY_REG_998, current_thread));
     } else {
         LongToGdbHex(reply, RegRead(TODO_DUMMY_REG_997, current_thread));
@@ -811,7 +811,7 @@ static void ReadRegisters() {
 
     bufptr += 16;
 
-    IntToGdbHex(bufptr, (u32)RegRead(CPSR_REGISTER, current_thread));
+    IntToGdbHex(bufptr, static_cast<u32>(RegRead(PSTATE_REGISTER, current_thread)));
 
     bufptr += 8;
 
@@ -843,11 +843,11 @@ static void WriteRegister() {
         RegWrite(id, GdbHexToLong(buffer_ptr), current_thread);
     } else if (id == PC_REGISTER) {
         RegWrite(id, GdbHexToLong(buffer_ptr), current_thread);
-    } else if (id == CPSR_REGISTER) {
+    } else if (id == PSTATE_REGISTER) {
         RegWrite(id, GdbHexToInt(buffer_ptr), current_thread);
-    } else if (id >= UC_ARM64_REG_Q0 && id < FPSCR_REGISTER) {
+    } else if (id >= UC_ARM64_REG_Q0 && id < FPCR_REGISTER) {
         RegWrite(id, GdbHexToLong(buffer_ptr), current_thread);
-    } else if (id == FPSCR_REGISTER) {
+    } else if (id == FPCR_REGISTER) {
         RegWrite(TODO_DUMMY_REG_998, GdbHexToLong(buffer_ptr), current_thread);
     } else {
         RegWrite(TODO_DUMMY_REG_997, GdbHexToLong(buffer_ptr), current_thread);
@@ -866,16 +866,16 @@ static void WriteRegisters() {
     if (command_buffer[0] != 'G')
         return SendReply("E01");
 
-    for (u32 i = 0, reg = 0; reg <= FPSCR_REGISTER; i++, reg++) {
+    for (u32 i = 0, reg = 0; reg <= FPCR_REGISTER; i++, reg++) {
         if (reg <= SP_REGISTER) {
             RegWrite(reg, GdbHexToLong(buffer_ptr + i * 16), current_thread);
         } else if (reg == PC_REGISTER) {
             RegWrite(PC_REGISTER, GdbHexToLong(buffer_ptr + i * 16), current_thread);
-        } else if (reg == CPSR_REGISTER) {
-            RegWrite(CPSR_REGISTER, GdbHexToInt(buffer_ptr + i * 16), current_thread);
-        } else if (reg >= UC_ARM64_REG_Q0 && reg < FPSCR_REGISTER) {
+        } else if (reg == PSTATE_REGISTER) {
+            RegWrite(PSTATE_REGISTER, GdbHexToInt(buffer_ptr + i * 16), current_thread);
+        } else if (reg >= UC_ARM64_REG_Q0 && reg < FPCR_REGISTER) {
             RegWrite(reg, GdbHexToLong(buffer_ptr + i * 16), current_thread);
-        } else if (reg == FPSCR_REGISTER) {
+        } else if (reg == FPCR_REGISTER) {
             RegWrite(TODO_DUMMY_REG_998, GdbHexToLong(buffer_ptr + i * 16), current_thread);
         } else {
             UNIMPLEMENTED();
diff --git a/src/core/hle/ipc.h b/src/core/hle/ipc.h
index 545cd884a..419f45896 100644
--- a/src/core/hle/ipc.h
+++ b/src/core/hle/ipc.h
@@ -12,7 +12,7 @@
 namespace IPC {
 
 /// Size of the command buffer area, in 32-bit words.
-constexpr size_t COMMAND_BUFFER_LENGTH = 0x100 / sizeof(u32);
+constexpr std::size_t COMMAND_BUFFER_LENGTH = 0x100 / sizeof(u32);
 
 // These errors are commonly returned by invalid IPC translations, so alias them here for
 // convenience.
diff --git a/src/core/hle/ipc_helpers.h b/src/core/hle/ipc_helpers.h
index 0f3ffdb60..7545ecf2a 100644
--- a/src/core/hle/ipc_helpers.h
+++ b/src/core/hle/ipc_helpers.h
@@ -152,8 +152,8 @@ public:
     }
 
     void ValidateHeader() {
-        const size_t num_domain_objects = context->NumDomainObjects();
-        const size_t num_move_objects = context->NumMoveObjects();
+        const std::size_t num_domain_objects = context->NumDomainObjects();
+        const std::size_t num_move_objects = context->NumMoveObjects();
         ASSERT_MSG(!num_domain_objects || !num_move_objects,
                    "cannot move normal handles and domain objects");
         ASSERT_MSG((index - datapayload_index) == normal_params_size,
@@ -329,10 +329,10 @@ public:
     T PopRaw();
 
     template <typename T>
-    Kernel::SharedPtr<T> GetMoveObject(size_t index);
+    Kernel::SharedPtr<T> GetMoveObject(std::size_t index);
 
     template <typename T>
-    Kernel::SharedPtr<T> GetCopyObject(size_t index);
+    Kernel::SharedPtr<T> GetCopyObject(std::size_t index);
 
     template <class T>
     std::shared_ptr<T> PopIpcInterface() {
@@ -406,12 +406,12 @@ void RequestParser::Pop(First& first_value, Other&... other_values) {
 }
 
 template <typename T>
-Kernel::SharedPtr<T> RequestParser::GetMoveObject(size_t index) {
+Kernel::SharedPtr<T> RequestParser::GetMoveObject(std::size_t index) {
     return context->GetMoveObject<T>(index);
 }
 
 template <typename T>
-Kernel::SharedPtr<T> RequestParser::GetCopyObject(size_t index) {
+Kernel::SharedPtr<T> RequestParser::GetCopyObject(std::size_t index) {
     return context->GetCopyObject<T>(index);
 }
 
diff --git a/src/core/hle/kernel/address_arbiter.cpp b/src/core/hle/kernel/address_arbiter.cpp
index 6657accd5..93577591f 100644
--- a/src/core/hle/kernel/address_arbiter.cpp
+++ b/src/core/hle/kernel/address_arbiter.cpp
@@ -35,16 +35,17 @@ static ResultCode WaitForAddress(VAddr address, s64 timeout) {
 
 // Gets the threads waiting on an address.
 static std::vector<SharedPtr<Thread>> GetThreadsWaitingOnAddress(VAddr address) {
-    const auto RetrieveWaitingThreads =
-        [](size_t core_index, std::vector<SharedPtr<Thread>>& waiting_threads, VAddr arb_addr) {
-            const auto& scheduler = Core::System::GetInstance().Scheduler(core_index);
-            auto& thread_list = scheduler->GetThreadList();
-
-            for (auto& thread : thread_list) {
-                if (thread->arb_wait_address == arb_addr)
-                    waiting_threads.push_back(thread);
-            }
-        };
+    const auto RetrieveWaitingThreads = [](std::size_t core_index,
+                                           std::vector<SharedPtr<Thread>>& waiting_threads,
+                                           VAddr arb_addr) {
+        const auto& scheduler = Core::System::GetInstance().Scheduler(core_index);
+        auto& thread_list = scheduler->GetThreadList();
+
+        for (auto& thread : thread_list) {
+            if (thread->arb_wait_address == arb_addr)
+                waiting_threads.push_back(thread);
+        }
+    };
 
     // Retrieve all threads that are waiting for this address.
     std::vector<SharedPtr<Thread>> threads;
@@ -66,12 +67,12 @@ static std::vector<SharedPtr<Thread>> GetThreadsWaitingOnAddress(VAddr address)
 static void WakeThreads(std::vector<SharedPtr<Thread>>& waiting_threads, s32 num_to_wake) {
     // Only process up to 'target' threads, unless 'target' is <= 0, in which case process
     // them all.
-    size_t last = waiting_threads.size();
+    std::size_t last = waiting_threads.size();
     if (num_to_wake > 0)
         last = num_to_wake;
 
     // Signal the waiting threads.
-    for (size_t i = 0; i < last; i++) {
+    for (std::size_t i = 0; i < last; i++) {
         ASSERT(waiting_threads[i]->status == ThreadStatus::WaitArb);
         waiting_threads[i]->SetWaitSynchronizationResult(RESULT_SUCCESS);
         waiting_threads[i]->arb_wait_address = 0;
diff --git a/src/core/hle/kernel/errors.h b/src/core/hle/kernel/errors.h
index ad39c8271..8c2be2681 100644
--- a/src/core/hle/kernel/errors.h
+++ b/src/core/hle/kernel/errors.h
@@ -17,6 +17,7 @@ enum {
 
     // Confirmed Switch OS error codes
     MaxConnectionsReached = 7,
+    InvalidSize = 101,
     InvalidAddress = 102,
     HandleTableFull = 105,
     InvalidMemoryState = 106,
@@ -29,6 +30,7 @@ enum {
     SynchronizationCanceled = 118,
     TooLarge = 119,
     InvalidEnumValue = 120,
+    NoSuchEntry = 121,
     InvalidState = 125,
     ResourceLimitExceeded = 132,
 };
@@ -55,6 +57,7 @@ constexpr ResultCode ERR_INVALID_MEMORY_PERMISSIONS(ErrorModule::Kernel,
                                                     ErrCodes::InvalidMemoryPermissions);
 constexpr ResultCode ERR_INVALID_HANDLE(ErrorModule::Kernel, ErrCodes::InvalidHandle);
 constexpr ResultCode ERR_INVALID_PROCESSOR_ID(ErrorModule::Kernel, ErrCodes::InvalidProcessorId);
+constexpr ResultCode ERR_INVALID_SIZE(ErrorModule::Kernel, ErrCodes::InvalidSize);
 constexpr ResultCode ERR_INVALID_STATE(ErrorModule::Kernel, ErrCodes::InvalidState);
 constexpr ResultCode ERR_INVALID_THREAD_PRIORITY(ErrorModule::Kernel,
                                                  ErrCodes::InvalidThreadPriority);
@@ -63,7 +66,7 @@ constexpr ResultCode ERR_INVALID_OBJECT_ADDR(-1);
 constexpr ResultCode ERR_NOT_AUTHORIZED(-1);
 /// Alternate code returned instead of ERR_INVALID_HANDLE in some code paths.
 constexpr ResultCode ERR_INVALID_HANDLE_OS(-1);
-constexpr ResultCode ERR_NOT_FOUND(-1);
+constexpr ResultCode ERR_NOT_FOUND(ErrorModule::Kernel, ErrCodes::NoSuchEntry);
 constexpr ResultCode RESULT_TIMEOUT(ErrorModule::Kernel, ErrCodes::Timeout);
 /// Returned when Accept() is called on a port with no sessions to be accepted.
 constexpr ResultCode ERR_NO_PENDING_SESSIONS(-1);
diff --git a/src/core/hle/kernel/handle_table.cpp b/src/core/hle/kernel/handle_table.cpp
index 3a079b9a9..5ee5c05e3 100644
--- a/src/core/hle/kernel/handle_table.cpp
+++ b/src/core/hle/kernel/handle_table.cpp
@@ -65,7 +65,7 @@ ResultCode HandleTable::Close(Handle handle) {
 }
 
 bool HandleTable::IsValid(Handle handle) const {
-    size_t slot = GetSlot(handle);
+    std::size_t slot = GetSlot(handle);
     u16 generation = GetGeneration(handle);
 
     return slot < MAX_COUNT && objects[slot] != nullptr && generations[slot] == generation;
diff --git a/src/core/hle/kernel/handle_table.h b/src/core/hle/kernel/handle_table.h
index cac928adb..9e2f33e8a 100644
--- a/src/core/hle/kernel/handle_table.h
+++ b/src/core/hle/kernel/handle_table.h
@@ -93,7 +93,7 @@ private:
      * This is the maximum limit of handles allowed per process in CTR-OS. It can be further
      * reduced by ExHeader values, but this is not emulated here.
      */
-    static const size_t MAX_COUNT = 4096;
+    static const std::size_t MAX_COUNT = 4096;
 
     static u16 GetSlot(Handle handle) {
         return handle >> 15;
diff --git a/src/core/hle/kernel/hle_ipc.cpp b/src/core/hle/kernel/hle_ipc.cpp
index 7264be906..72fb9d250 100644
--- a/src/core/hle/kernel/hle_ipc.cpp
+++ b/src/core/hle/kernel/hle_ipc.cpp
@@ -42,9 +42,9 @@ SharedPtr<Event> HLERequestContext::SleepClientThread(SharedPtr<Thread> thread,
                                                       Kernel::SharedPtr<Kernel::Event> event) {
 
     // Put the client thread to sleep until the wait event is signaled or the timeout expires.
-    thread->wakeup_callback =
-        [context = *this, callback](ThreadWakeupReason reason, SharedPtr<Thread> thread,
-                                    SharedPtr<WaitObject> object, size_t index) mutable -> bool {
+    thread->wakeup_callback = [context = *this, callback](
+                                  ThreadWakeupReason reason, SharedPtr<Thread> thread,
+                                  SharedPtr<WaitObject> object, std::size_t index) mutable -> bool {
         ASSERT(thread->status == ThreadStatus::WaitHLEEvent);
         callback(thread, context, reason);
         context.WriteToOutgoingCommandBuffer(*thread);
@@ -199,8 +199,8 @@ ResultCode HLERequestContext::PopulateFromIncomingCommandBuffer(u32_le* src_cmdb
     }
 
     // The data_size already includes the payload header, the padding and the domain header.
-    size_t size = data_payload_offset + command_header->data_size -
-                  sizeof(IPC::DataPayloadHeader) / sizeof(u32) - 4;
+    std::size_t size = data_payload_offset + command_header->data_size -
+                       sizeof(IPC::DataPayloadHeader) / sizeof(u32) - 4;
     if (domain_message_header)
         size -= sizeof(IPC::DomainMessageHeader) / sizeof(u32);
     std::copy_n(src_cmdbuf, size, cmd_buf.begin());
@@ -217,8 +217,8 @@ ResultCode HLERequestContext::WriteToOutgoingCommandBuffer(const Thread& thread)
     ParseCommandBuffer(cmd_buf.data(), false);
 
     // The data_size already includes the payload header, the padding and the domain header.
-    size_t size = data_payload_offset + command_header->data_size -
-                  sizeof(IPC::DataPayloadHeader) / sizeof(u32) - 4;
+    std::size_t size = data_payload_offset + command_header->data_size -
+                       sizeof(IPC::DataPayloadHeader) / sizeof(u32) - 4;
     if (domain_message_header)
         size -= sizeof(IPC::DomainMessageHeader) / sizeof(u32);
 
@@ -229,7 +229,7 @@ ResultCode HLERequestContext::WriteToOutgoingCommandBuffer(const Thread& thread)
                    "Handle descriptor bit set but no handles to translate");
         // We write the translated handles at a specific offset in the command buffer, this space
         // was already reserved when writing the header.
-        size_t current_offset =
+        std::size_t current_offset =
             (sizeof(IPC::CommandHeader) + sizeof(IPC::HandleDescriptorHeader)) / sizeof(u32);
         ASSERT_MSG(!handle_descriptor_header->send_current_pid, "Sending PID is not implemented");
 
@@ -258,7 +258,7 @@ ResultCode HLERequestContext::WriteToOutgoingCommandBuffer(const Thread& thread)
         ASSERT(domain_message_header->num_objects == domain_objects.size());
         // Write the domain objects to the command buffer, these go after the raw untranslated data.
         // TODO(Subv): This completely ignores C buffers.
-        size_t domain_offset = size - domain_message_header->num_objects;
+        std::size_t domain_offset = size - domain_message_header->num_objects;
         auto& request_handlers = server_session->domain_request_handlers;
 
         for (auto& object : domain_objects) {
@@ -291,14 +291,15 @@ std::vector<u8> HLERequestContext::ReadBuffer(int buffer_index) const {
     return buffer;
 }
 
-size_t HLERequestContext::WriteBuffer(const void* buffer, size_t size, int buffer_index) const {
+std::size_t HLERequestContext::WriteBuffer(const void* buffer, std::size_t size,
+                                           int buffer_index) const {
     if (size == 0) {
         LOG_WARNING(Core, "skip empty buffer write");
         return 0;
     }
 
     const bool is_buffer_b{BufferDescriptorB().size() && BufferDescriptorB()[buffer_index].Size()};
-    const size_t buffer_size{GetWriteBufferSize(buffer_index)};
+    const std::size_t buffer_size{GetWriteBufferSize(buffer_index)};
     if (size > buffer_size) {
         LOG_CRITICAL(Core, "size ({:016X}) is greater than buffer_size ({:016X})", size,
                      buffer_size);
@@ -314,13 +315,13 @@ size_t HLERequestContext::WriteBuffer(const void* buffer, size_t size, int buffe
     return size;
 }
 
-size_t HLERequestContext::GetReadBufferSize(int buffer_index) const {
+std::size_t HLERequestContext::GetReadBufferSize(int buffer_index) const {
     const bool is_buffer_a{BufferDescriptorA().size() && BufferDescriptorA()[buffer_index].Size()};
     return is_buffer_a ? BufferDescriptorA()[buffer_index].Size()
                        : BufferDescriptorX()[buffer_index].Size();
 }
 
-size_t HLERequestContext::GetWriteBufferSize(int buffer_index) const {
+std::size_t HLERequestContext::GetWriteBufferSize(int buffer_index) const {
     const bool is_buffer_b{BufferDescriptorB().size() && BufferDescriptorB()[buffer_index].Size()};
     return is_buffer_b ? BufferDescriptorB()[buffer_index].Size()
                        : BufferDescriptorC()[buffer_index].Size();
diff --git a/src/core/hle/kernel/hle_ipc.h b/src/core/hle/kernel/hle_ipc.h
index f0d07f1b6..894479ee0 100644
--- a/src/core/hle/kernel/hle_ipc.h
+++ b/src/core/hle/kernel/hle_ipc.h
@@ -170,7 +170,7 @@ public:
     std::vector<u8> ReadBuffer(int buffer_index = 0) const;
 
     /// Helper function to write a buffer using the appropriate buffer descriptor
-    size_t WriteBuffer(const void* buffer, size_t size, int buffer_index = 0) const;
+    std::size_t WriteBuffer(const void* buffer, std::size_t size, int buffer_index = 0) const;
 
     /* Helper function to write a buffer using the appropriate buffer descriptor
      *
@@ -182,7 +182,7 @@ public:
      */
     template <typename ContiguousContainer,
               typename = std::enable_if_t<!std::is_pointer_v<ContiguousContainer>>>
-    size_t WriteBuffer(const ContiguousContainer& container, int buffer_index = 0) const {
+    std::size_t WriteBuffer(const ContiguousContainer& container, int buffer_index = 0) const {
         using ContiguousType = typename ContiguousContainer::value_type;
 
         static_assert(std::is_trivially_copyable_v<ContiguousType>,
@@ -193,19 +193,19 @@ public:
     }
 
     /// Helper function to get the size of the input buffer
-    size_t GetReadBufferSize(int buffer_index = 0) const;
+    std::size_t GetReadBufferSize(int buffer_index = 0) const;
 
     /// Helper function to get the size of the output buffer
-    size_t GetWriteBufferSize(int buffer_index = 0) const;
+    std::size_t GetWriteBufferSize(int buffer_index = 0) const;
 
     template <typename T>
-    SharedPtr<T> GetCopyObject(size_t index) {
+    SharedPtr<T> GetCopyObject(std::size_t index) {
         ASSERT(index < copy_objects.size());
         return DynamicObjectCast<T>(copy_objects[index]);
     }
 
     template <typename T>
-    SharedPtr<T> GetMoveObject(size_t index) {
+    SharedPtr<T> GetMoveObject(std::size_t index) {
         ASSERT(index < move_objects.size());
         return DynamicObjectCast<T>(move_objects[index]);
     }
@@ -223,7 +223,7 @@ public:
     }
 
     template <typename T>
-    std::shared_ptr<T> GetDomainRequestHandler(size_t index) const {
+    std::shared_ptr<T> GetDomainRequestHandler(std::size_t index) const {
         return std::static_pointer_cast<T>(domain_request_handlers[index]);
     }
 
@@ -240,15 +240,15 @@ public:
         domain_objects.clear();
     }
 
-    size_t NumMoveObjects() const {
+    std::size_t NumMoveObjects() const {
         return move_objects.size();
     }
 
-    size_t NumCopyObjects() const {
+    std::size_t NumCopyObjects() const {
         return copy_objects.size();
     }
 
-    size_t NumDomainObjects() const {
+    std::size_t NumDomainObjects() const {
         return domain_objects.size();
     }
 
diff --git a/src/core/hle/kernel/mutex.cpp b/src/core/hle/kernel/mutex.cpp
index 36bf0b677..51f4544be 100644
--- a/src/core/hle/kernel/mutex.cpp
+++ b/src/core/hle/kernel/mutex.cpp
@@ -62,7 +62,7 @@ ResultCode Mutex::TryAcquire(HandleTable& handle_table, VAddr address, Handle ho
                              Handle requesting_thread_handle) {
     // The mutex address must be 4-byte aligned
     if ((address % sizeof(u32)) != 0) {
-        return ResultCode(ErrorModule::Kernel, ErrCodes::InvalidAddress);
+        return ERR_INVALID_ADDRESS;
     }
 
     SharedPtr<Thread> holding_thread = handle_table.Get<Thread>(holding_thread_handle);
@@ -100,7 +100,7 @@ ResultCode Mutex::TryAcquire(HandleTable& handle_table, VAddr address, Handle ho
 ResultCode Mutex::Release(VAddr address) {
     // The mutex address must be 4-byte aligned
     if ((address % sizeof(u32)) != 0) {
-        return ResultCode(ErrorModule::Kernel, ErrCodes::InvalidAddress);
+        return ERR_INVALID_ADDRESS;
     }
 
     auto [thread, num_waiters] = GetHighestPriorityMutexWaitingThread(GetCurrentThread(), address);
diff --git a/src/core/hle/kernel/process.cpp b/src/core/hle/kernel/process.cpp
index b025e323f..7a272d031 100644
--- a/src/core/hle/kernel/process.cpp
+++ b/src/core/hle/kernel/process.cpp
@@ -40,8 +40,8 @@ SharedPtr<Process> Process::Create(KernelCore& kernel, std::string&& name) {
     return process;
 }
 
-void Process::ParseKernelCaps(const u32* kernel_caps, size_t len) {
-    for (size_t i = 0; i < len; ++i) {
+void Process::ParseKernelCaps(const u32* kernel_caps, std::size_t len) {
+    for (std::size_t i = 0; i < len; ++i) {
         u32 descriptor = kernel_caps[i];
         u32 type = descriptor >> 20;
 
@@ -211,7 +211,7 @@ ResultCode Process::MirrorMemory(VAddr dst_addr, VAddr src_addr, u64 size) {
                "Shared memory exceeds bounds of mapped block");
 
     const std::shared_ptr<std::vector<u8>>& backing_block = vma->second.backing_block;
-    size_t backing_block_offset = vma->second.offset + vma_offset;
+    std::size_t backing_block_offset = vma->second.offset + vma_offset;
 
     CASCADE_RESULT(auto new_vma,
                    vm_manager.MapMemoryBlock(dst_addr, backing_block, backing_block_offset, size,
diff --git a/src/core/hle/kernel/process.h b/src/core/hle/kernel/process.h
index 1587d40c1..81538f70c 100644
--- a/src/core/hle/kernel/process.h
+++ b/src/core/hle/kernel/process.h
@@ -59,7 +59,7 @@ class ResourceLimit;
 
 struct CodeSet final : public Object {
     struct Segment {
-        size_t offset = 0;
+        std::size_t offset = 0;
         VAddr addr = 0;
         u32 size = 0;
     };
@@ -164,7 +164,7 @@ public:
      * Parses a list of kernel capability descriptors (as found in the ExHeader) and applies them
      * to this process.
      */
-    void ParseKernelCaps(const u32* kernel_caps, size_t len);
+    void ParseKernelCaps(const u32* kernel_caps, std::size_t len);
 
     /**
      * Applies address space changes and launches the process main thread.
diff --git a/src/core/hle/kernel/shared_memory.h b/src/core/hle/kernel/shared_memory.h
index 2c729afe3..2c06bb7ce 100644
--- a/src/core/hle/kernel/shared_memory.h
+++ b/src/core/hle/kernel/shared_memory.h
@@ -119,7 +119,7 @@ public:
     /// Backing memory for this shared memory block.
     std::shared_ptr<std::vector<u8>> backing_block;
     /// Offset into the backing block for this shared memory.
-    size_t backing_block_offset;
+    std::size_t backing_block_offset;
     /// Size of the memory block. Page-aligned.
     u64 size;
     /// Permission restrictions applied to the process which created the block.
diff --git a/src/core/hle/kernel/svc.cpp b/src/core/hle/kernel/svc.cpp
index f500fd2e7..371fc439e 100644
--- a/src/core/hle/kernel/svc.cpp
+++ b/src/core/hle/kernel/svc.cpp
@@ -35,10 +35,21 @@
 #include "core/hle/service/service.h"
 
 namespace Kernel {
+namespace {
+constexpr bool Is4KBAligned(VAddr address) {
+    return (address & 0xFFF) == 0;
+}
+} // Anonymous namespace
 
 /// Set the process heap to a given Size. It can both extend and shrink the heap.
 static ResultCode SetHeapSize(VAddr* heap_addr, u64 heap_size) {
     LOG_TRACE(Kernel_SVC, "called, heap_size=0x{:X}", heap_size);
+
+    // Size must be a multiple of 0x200000 (2MB) and be equal to or less than 4GB.
+    if ((heap_size & 0xFFFFFFFE001FFFFF) != 0) {
+        return ERR_INVALID_SIZE;
+    }
+
     auto& process = *Core::CurrentProcess();
     CASCADE_RESULT(*heap_addr,
                    process.HeapAllocate(Memory::HEAP_VADDR, heap_size, VMAPermission::ReadWrite));
@@ -56,6 +67,15 @@ static ResultCode SetMemoryAttribute(VAddr addr, u64 size, u32 state0, u32 state
 static ResultCode MapMemory(VAddr dst_addr, VAddr src_addr, u64 size) {
     LOG_TRACE(Kernel_SVC, "called, dst_addr=0x{:X}, src_addr=0x{:X}, size=0x{:X}", dst_addr,
               src_addr, size);
+
+    if (!Is4KBAligned(dst_addr) || !Is4KBAligned(src_addr)) {
+        return ERR_INVALID_ADDRESS;
+    }
+
+    if (size == 0 || !Is4KBAligned(size)) {
+        return ERR_INVALID_SIZE;
+    }
+
     return Core::CurrentProcess()->MirrorMemory(dst_addr, src_addr, size);
 }
 
@@ -63,6 +83,15 @@ static ResultCode MapMemory(VAddr dst_addr, VAddr src_addr, u64 size) {
 static ResultCode UnmapMemory(VAddr dst_addr, VAddr src_addr, u64 size) {
     LOG_TRACE(Kernel_SVC, "called, dst_addr=0x{:X}, src_addr=0x{:X}, size=0x{:X}", dst_addr,
               src_addr, size);
+
+    if (!Is4KBAligned(dst_addr) || !Is4KBAligned(src_addr)) {
+        return ERR_INVALID_ADDRESS;
+    }
+
+    if (size == 0 || !Is4KBAligned(size)) {
+        return ERR_INVALID_SIZE;
+    }
+
     return Core::CurrentProcess()->UnmapMemory(dst_addr, src_addr, size);
 }
 
@@ -146,7 +175,7 @@ static ResultCode GetProcessId(u32* process_id, Handle process_handle) {
 
 /// Default thread wakeup callback for WaitSynchronization
 static bool DefaultThreadWakeupCallback(ThreadWakeupReason reason, SharedPtr<Thread> thread,
-                                        SharedPtr<WaitObject> object, size_t index) {
+                                        SharedPtr<WaitObject> object, std::size_t index) {
     ASSERT(thread->status == ThreadStatus::WaitSynchAny);
 
     if (reason == ThreadWakeupReason::Timeout) {
@@ -251,6 +280,10 @@ static ResultCode ArbitrateLock(Handle holding_thread_handle, VAddr mutex_addr,
               "requesting_current_thread_handle=0x{:08X}",
               holding_thread_handle, mutex_addr, requesting_thread_handle);
 
+    if (Memory::IsKernelVirtualAddress(mutex_addr)) {
+        return ERR_INVALID_ADDRESS_STATE;
+    }
+
     auto& handle_table = Core::System::GetInstance().Kernel().HandleTable();
     return Mutex::TryAcquire(handle_table, mutex_addr, holding_thread_handle,
                              requesting_thread_handle);
@@ -260,6 +293,10 @@ static ResultCode ArbitrateLock(Handle holding_thread_handle, VAddr mutex_addr,
 static ResultCode ArbitrateUnlock(VAddr mutex_addr) {
     LOG_TRACE(Kernel_SVC, "called mutex_addr=0x{:X}", mutex_addr);
 
+    if (Memory::IsKernelVirtualAddress(mutex_addr)) {
+        return ERR_INVALID_ADDRESS_STATE;
+    }
+
     return Mutex::Release(mutex_addr);
 }
 
@@ -415,35 +452,43 @@ static ResultCode MapSharedMemory(Handle shared_memory_handle, VAddr addr, u64 s
               "called, shared_memory_handle=0x{:X}, addr=0x{:X}, size=0x{:X}, permissions=0x{:08X}",
               shared_memory_handle, addr, size, permissions);
 
+    if (!Is4KBAligned(addr)) {
+        return ERR_INVALID_ADDRESS;
+    }
+
+    if (size == 0 || !Is4KBAligned(size)) {
+        return ERR_INVALID_SIZE;
+    }
+
+    const auto permissions_type = static_cast<MemoryPermission>(permissions);
+    if (permissions_type != MemoryPermission::Read &&
+        permissions_type != MemoryPermission::ReadWrite) {
+        LOG_ERROR(Kernel_SVC, "Invalid permissions=0x{:08X}", permissions);
+        return ERR_INVALID_MEMORY_PERMISSIONS;
+    }
+
     auto& kernel = Core::System::GetInstance().Kernel();
     auto shared_memory = kernel.HandleTable().Get<SharedMemory>(shared_memory_handle);
     if (!shared_memory) {
         return ERR_INVALID_HANDLE;
     }
 
-    MemoryPermission permissions_type = static_cast<MemoryPermission>(permissions);
-    switch (permissions_type) {
-    case MemoryPermission::Read:
-    case MemoryPermission::Write:
-    case MemoryPermission::ReadWrite:
-    case MemoryPermission::Execute:
-    case MemoryPermission::ReadExecute:
-    case MemoryPermission::WriteExecute:
-    case MemoryPermission::ReadWriteExecute:
-    case MemoryPermission::DontCare:
-        return shared_memory->Map(Core::CurrentProcess().get(), addr, permissions_type,
-                                  MemoryPermission::DontCare);
-    default:
-        LOG_ERROR(Kernel_SVC, "unknown permissions=0x{:08X}", permissions);
-    }
-
-    return RESULT_SUCCESS;
+    return shared_memory->Map(Core::CurrentProcess().get(), addr, permissions_type,
+                              MemoryPermission::DontCare);
 }
 
 static ResultCode UnmapSharedMemory(Handle shared_memory_handle, VAddr addr, u64 size) {
     LOG_WARNING(Kernel_SVC, "called, shared_memory_handle=0x{:08X}, addr=0x{:X}, size=0x{:X}",
                 shared_memory_handle, addr, size);
 
+    if (!Is4KBAligned(addr)) {
+        return ERR_INVALID_ADDRESS;
+    }
+
+    if (size == 0 || !Is4KBAligned(size)) {
+        return ERR_INVALID_SIZE;
+    }
+
     auto& kernel = Core::System::GetInstance().Kernel();
     auto shared_memory = kernel.HandleTable().Get<SharedMemory>(shared_memory_handle);
 
@@ -524,7 +569,7 @@ static void ExitProcess() {
 /// Creates a new thread
 static ResultCode CreateThread(Handle* out_handle, VAddr entry_point, u64 arg, VAddr stack_top,
                                u32 priority, s32 processor_id) {
-    std::string name = fmt::format("unknown-{:X}", entry_point);
+    std::string name = fmt::format("thread-{:X}", entry_point);
 
     if (priority > THREADPRIO_LOWEST) {
         return ERR_INVALID_THREAD_PRIORITY;
@@ -647,16 +692,17 @@ static ResultCode SignalProcessWideKey(VAddr condition_variable_addr, s32 target
     LOG_TRACE(Kernel_SVC, "called, condition_variable_addr=0x{:X}, target=0x{:08X}",
               condition_variable_addr, target);
 
-    auto RetrieveWaitingThreads =
-        [](size_t core_index, std::vector<SharedPtr<Thread>>& waiting_threads, VAddr condvar_addr) {
-            const auto& scheduler = Core::System::GetInstance().Scheduler(core_index);
-            auto& thread_list = scheduler->GetThreadList();
+    auto RetrieveWaitingThreads = [](std::size_t core_index,
+                                     std::vector<SharedPtr<Thread>>& waiting_threads,
+                                     VAddr condvar_addr) {
+        const auto& scheduler = Core::System::GetInstance().Scheduler(core_index);
+        auto& thread_list = scheduler->GetThreadList();
 
-            for (auto& thread : thread_list) {
-                if (thread->condvar_wait_address == condvar_addr)
-                    waiting_threads.push_back(thread);
-            }
-        };
+        for (auto& thread : thread_list) {
+            if (thread->condvar_wait_address == condvar_addr)
+                waiting_threads.push_back(thread);
+        }
+    };
 
     // Retrieve a list of all threads that are waiting for this condition variable.
     std::vector<SharedPtr<Thread>> waiting_threads;
@@ -672,7 +718,7 @@ static ResultCode SignalProcessWideKey(VAddr condition_variable_addr, s32 target
 
     // Only process up to 'target' threads, unless 'target' is -1, in which case process
     // them all.
-    size_t last = waiting_threads.size();
+    std::size_t last = waiting_threads.size();
     if (target != -1)
         last = target;
 
@@ -680,12 +726,12 @@ static ResultCode SignalProcessWideKey(VAddr condition_variable_addr, s32 target
     if (last > waiting_threads.size())
         return RESULT_SUCCESS;
 
-    for (size_t index = 0; index < last; ++index) {
+    for (std::size_t index = 0; index < last; ++index) {
         auto& thread = waiting_threads[index];
 
         ASSERT(thread->condvar_wait_address == condition_variable_addr);
 
-        size_t current_core = Core::System::GetInstance().CurrentCoreIndex();
+        std::size_t current_core = Core::System::GetInstance().CurrentCoreIndex();
 
         auto& monitor = Core::System::GetInstance().Monitor();
 
@@ -898,12 +944,28 @@ static ResultCode CreateSharedMemory(Handle* handle, u64 size, u32 local_permiss
     LOG_TRACE(Kernel_SVC, "called, size=0x{:X}, localPerms=0x{:08X}, remotePerms=0x{:08X}", size,
               local_permissions, remote_permissions);
 
+    // Size must be a multiple of 4KB and be less than or equal to
+    // approx. 8 GB (actually (1GB - 512B) * 8)
+    if (size == 0 || (size & 0xFFFFFFFE00000FFF) != 0) {
+        return ERR_INVALID_SIZE;
+    }
+
+    const auto local_perms = static_cast<MemoryPermission>(local_permissions);
+    if (local_perms != MemoryPermission::Read && local_perms != MemoryPermission::ReadWrite) {
+        return ERR_INVALID_MEMORY_PERMISSIONS;
+    }
+
+    const auto remote_perms = static_cast<MemoryPermission>(remote_permissions);
+    if (remote_perms != MemoryPermission::Read && remote_perms != MemoryPermission::ReadWrite &&
+        remote_perms != MemoryPermission::DontCare) {
+        return ERR_INVALID_MEMORY_PERMISSIONS;
+    }
+
     auto& kernel = Core::System::GetInstance().Kernel();
     auto& handle_table = kernel.HandleTable();
     auto shared_mem_handle =
         SharedMemory::Create(kernel, handle_table.Get<Process>(KernelHandle::CurrentProcess), size,
-                             static_cast<MemoryPermission>(local_permissions),
-                             static_cast<MemoryPermission>(remote_permissions));
+                             local_perms, remote_perms);
 
     CASCADE_RESULT(*handle, handle_table.Create(shared_mem_handle));
     return RESULT_SUCCESS;
diff --git a/src/core/hle/kernel/svc_wrap.h b/src/core/hle/kernel/svc_wrap.h
index 1eda5f879..fea9ba5ea 100644
--- a/src/core/hle/kernel/svc_wrap.h
+++ b/src/core/hle/kernel/svc_wrap.h
@@ -13,7 +13,9 @@
 
 namespace Kernel {
 
-#define PARAM(n) Core::CurrentArmInterface().GetReg(n)
+static inline u64 Param(int n) {
+    return Core::CurrentArmInterface().GetReg(n);
+}
 
 /**
  * HLE a function return from the current ARM userland process
@@ -28,23 +30,23 @@ static inline void FuncReturn(u64 res) {
 
 template <ResultCode func(u64)>
 void SvcWrap() {
-    FuncReturn(func(PARAM(0)).raw);
+    FuncReturn(func(Param(0)).raw);
 }
 
 template <ResultCode func(u32)>
 void SvcWrap() {
-    FuncReturn(func((u32)PARAM(0)).raw);
+    FuncReturn(func((u32)Param(0)).raw);
 }
 
 template <ResultCode func(u32, u32)>
 void SvcWrap() {
-    FuncReturn(func((u32)PARAM(0), (u32)PARAM(1)).raw);
+    FuncReturn(func((u32)Param(0), (u32)Param(1)).raw);
 }
 
 template <ResultCode func(u32*, u32)>
 void SvcWrap() {
     u32 param_1 = 0;
-    u32 retval = func(&param_1, (u32)PARAM(1)).raw;
+    u32 retval = func(&param_1, (u32)Param(1)).raw;
     Core::CurrentArmInterface().SetReg(1, param_1);
     FuncReturn(retval);
 }
@@ -52,39 +54,39 @@ void SvcWrap() {
 template <ResultCode func(u32*, u64)>
 void SvcWrap() {
     u32 param_1 = 0;
-    u32 retval = func(&param_1, PARAM(1)).raw;
+    u32 retval = func(&param_1, Param(1)).raw;
     Core::CurrentArmInterface().SetReg(1, param_1);
     FuncReturn(retval);
 }
 
 template <ResultCode func(u64, s32)>
 void SvcWrap() {
-    FuncReturn(func(PARAM(0), (s32)PARAM(1)).raw);
+    FuncReturn(func(Param(0), (s32)Param(1)).raw);
 }
 
 template <ResultCode func(u64*, u64)>
 void SvcWrap() {
     u64 param_1 = 0;
-    u32 retval = func(&param_1, PARAM(1)).raw;
+    u32 retval = func(&param_1, Param(1)).raw;
     Core::CurrentArmInterface().SetReg(1, param_1);
     FuncReturn(retval);
 }
 
 template <ResultCode func(u32, u64)>
 void SvcWrap() {
-    FuncReturn(func((u32)(PARAM(0) & 0xFFFFFFFF), PARAM(1)).raw);
+    FuncReturn(func((u32)(Param(0) & 0xFFFFFFFF), Param(1)).raw);
 }
 
 template <ResultCode func(u32, u32, u64)>
 void SvcWrap() {
-    FuncReturn(func((u32)(PARAM(0) & 0xFFFFFFFF), (u32)(PARAM(1) & 0xFFFFFFFF), PARAM(2)).raw);
+    FuncReturn(func((u32)(Param(0) & 0xFFFFFFFF), (u32)(Param(1) & 0xFFFFFFFF), Param(2)).raw);
 }
 
 template <ResultCode func(u32, u32*, u64*)>
 void SvcWrap() {
     u32 param_1 = 0;
     u64 param_2 = 0;
-    ResultCode retval = func((u32)(PARAM(2) & 0xFFFFFFFF), &param_1, &param_2);
+    ResultCode retval = func((u32)(Param(2) & 0xFFFFFFFF), &param_1, &param_2);
     Core::CurrentArmInterface().SetReg(1, param_1);
     Core::CurrentArmInterface().SetReg(2, param_2);
     FuncReturn(retval.raw);
@@ -93,46 +95,46 @@ void SvcWrap() {
 template <ResultCode func(u64, u64, u32, u32)>
 void SvcWrap() {
     FuncReturn(
-        func(PARAM(0), PARAM(1), (u32)(PARAM(3) & 0xFFFFFFFF), (u32)(PARAM(3) & 0xFFFFFFFF)).raw);
+        func(Param(0), Param(1), (u32)(Param(3) & 0xFFFFFFFF), (u32)(Param(3) & 0xFFFFFFFF)).raw);
 }
 
 template <ResultCode func(u32, u64, u32)>
 void SvcWrap() {
-    FuncReturn(func((u32)PARAM(0), PARAM(1), (u32)PARAM(2)).raw);
+    FuncReturn(func((u32)Param(0), Param(1), (u32)Param(2)).raw);
 }
 
 template <ResultCode func(u64, u64, u64)>
 void SvcWrap() {
-    FuncReturn(func(PARAM(0), PARAM(1), PARAM(2)).raw);
+    FuncReturn(func(Param(0), Param(1), Param(2)).raw);
 }
 
 template <ResultCode func(u32, u64, u64, u32)>
 void SvcWrap() {
-    FuncReturn(func((u32)PARAM(0), PARAM(1), PARAM(2), (u32)PARAM(3)).raw);
+    FuncReturn(func((u32)Param(0), Param(1), Param(2), (u32)Param(3)).raw);
 }
 
 template <ResultCode func(u32, u64, u64)>
 void SvcWrap() {
-    FuncReturn(func((u32)PARAM(0), PARAM(1), PARAM(2)).raw);
+    FuncReturn(func((u32)Param(0), Param(1), Param(2)).raw);
 }
 
 template <ResultCode func(u32*, u64, u64, s64)>
 void SvcWrap() {
     u32 param_1 = 0;
-    ResultCode retval = func(&param_1, PARAM(1), (u32)(PARAM(2) & 0xFFFFFFFF), (s64)PARAM(3));
+    ResultCode retval = func(&param_1, Param(1), (u32)(Param(2) & 0xFFFFFFFF), (s64)Param(3));
     Core::CurrentArmInterface().SetReg(1, param_1);
     FuncReturn(retval.raw);
 }
 
 template <ResultCode func(u64, u64, u32, s64)>
 void SvcWrap() {
-    FuncReturn(func(PARAM(0), PARAM(1), (u32)PARAM(2), (s64)PARAM(3)).raw);
+    FuncReturn(func(Param(0), Param(1), (u32)Param(2), (s64)Param(3)).raw);
 }
 
 template <ResultCode func(u64*, u64, u64, u64)>
 void SvcWrap() {
     u64 param_1 = 0;
-    u32 retval = func(&param_1, PARAM(1), PARAM(2), PARAM(3)).raw;
+    u32 retval = func(&param_1, Param(1), Param(2), Param(3)).raw;
     Core::CurrentArmInterface().SetReg(1, param_1);
     FuncReturn(retval);
 }
@@ -141,7 +143,7 @@ template <ResultCode func(u32*, u64, u64, u64, u32, s32)>
 void SvcWrap() {
     u32 param_1 = 0;
     u32 retval =
-        func(&param_1, PARAM(1), PARAM(2), PARAM(3), (u32)PARAM(4), (s32)(PARAM(5) & 0xFFFFFFFF))
+        func(&param_1, Param(1), Param(2), Param(3), (u32)Param(4), (s32)(Param(5) & 0xFFFFFFFF))
             .raw;
     Core::CurrentArmInterface().SetReg(1, param_1);
     FuncReturn(retval);
@@ -151,13 +153,13 @@ template <ResultCode func(MemoryInfo*, PageInfo*, u64)>
 void SvcWrap() {
     MemoryInfo memory_info = {};
     PageInfo page_info = {};
-    u32 retval = func(&memory_info, &page_info, PARAM(2)).raw;
+    u32 retval = func(&memory_info, &page_info, Param(2)).raw;
 
-    Memory::Write64(PARAM(0), memory_info.base_address);
-    Memory::Write64(PARAM(0) + 8, memory_info.size);
-    Memory::Write32(PARAM(0) + 16, memory_info.type);
-    Memory::Write32(PARAM(0) + 20, memory_info.attributes);
-    Memory::Write32(PARAM(0) + 24, memory_info.permission);
+    Memory::Write64(Param(0), memory_info.base_address);
+    Memory::Write64(Param(0) + 8, memory_info.size);
+    Memory::Write32(Param(0) + 16, memory_info.type);
+    Memory::Write32(Param(0) + 20, memory_info.attributes);
+    Memory::Write32(Param(0) + 24, memory_info.permission);
 
     FuncReturn(retval);
 }
@@ -165,7 +167,7 @@ void SvcWrap() {
 template <ResultCode func(u32*, u64, u64, u32)>
 void SvcWrap() {
     u32 param_1 = 0;
-    u32 retval = func(&param_1, PARAM(1), PARAM(2), (u32)(PARAM(3) & 0xFFFFFFFF)).raw;
+    u32 retval = func(&param_1, Param(1), Param(2), (u32)(Param(3) & 0xFFFFFFFF)).raw;
     Core::CurrentArmInterface().SetReg(1, param_1);
     FuncReturn(retval);
 }
@@ -174,7 +176,7 @@ template <ResultCode func(Handle*, u64, u32, u32)>
 void SvcWrap() {
     u32 param_1 = 0;
     u32 retval =
-        func(&param_1, PARAM(1), (u32)(PARAM(2) & 0xFFFFFFFF), (u32)(PARAM(3) & 0xFFFFFFFF)).raw;
+        func(&param_1, Param(1), (u32)(Param(2) & 0xFFFFFFFF), (u32)(Param(3) & 0xFFFFFFFF)).raw;
     Core::CurrentArmInterface().SetReg(1, param_1);
     FuncReturn(retval);
 }
@@ -182,14 +184,14 @@ void SvcWrap() {
 template <ResultCode func(u64, u32, s32, s64)>
 void SvcWrap() {
     FuncReturn(
-        func(PARAM(0), (u32)(PARAM(1) & 0xFFFFFFFF), (s32)(PARAM(2) & 0xFFFFFFFF), (s64)PARAM(3))
+        func(Param(0), (u32)(Param(1) & 0xFFFFFFFF), (s32)(Param(2) & 0xFFFFFFFF), (s64)Param(3))
             .raw);
 }
 
 template <ResultCode func(u64, u32, s32, s32)>
 void SvcWrap() {
-    FuncReturn(func(PARAM(0), (u32)(PARAM(1) & 0xFFFFFFFF), (s32)(PARAM(2) & 0xFFFFFFFF),
-                    (s32)(PARAM(3) & 0xFFFFFFFF))
+    FuncReturn(func(Param(0), (u32)(Param(1) & 0xFFFFFFFF), (s32)(Param(2) & 0xFFFFFFFF),
+                    (s32)(Param(3) & 0xFFFFFFFF))
                    .raw);
 }
 
@@ -219,20 +221,17 @@ void SvcWrap() {
 
 template <void func(s64)>
 void SvcWrap() {
-    func((s64)PARAM(0));
+    func((s64)Param(0));
 }
 
 template <void func(u64, u64 len)>
 void SvcWrap() {
-    func(PARAM(0), PARAM(1));
+    func(Param(0), Param(1));
 }
 
 template <void func(u64, u64, u64)>
 void SvcWrap() {
-    func(PARAM(0), PARAM(1), PARAM(2));
+    func(Param(0), Param(1), Param(2));
 }
 
-#undef PARAM
-#undef FuncReturn
-
 } // namespace Kernel
diff --git a/src/core/hle/kernel/thread.cpp b/src/core/hle/kernel/thread.cpp
index 3f12a84dc..d4183d6e3 100644
--- a/src/core/hle/kernel/thread.cpp
+++ b/src/core/hle/kernel/thread.cpp
@@ -217,8 +217,8 @@ static void ResetThreadContext(Core::ARM_Interface::ThreadContext& context, VAdd
     context.cpu_registers[0] = arg;
     context.pc = entry_point;
     context.sp = stack_top;
-    context.cpsr = 0;
-    context.fpscr = 0;
+    context.pstate = 0;
+    context.fpcr = 0;
 }
 
 ResultVal<SharedPtr<Thread>> Thread::Create(KernelCore& kernel, std::string name, VAddr entry_point,
@@ -275,7 +275,7 @@ ResultVal<SharedPtr<Thread>> Thread::Create(KernelCore& kernel, std::string name
         available_slot = 0; // Use the first slot in the new page
 
         // Allocate some memory from the end of the linear heap for this region.
-        const size_t offset = thread->tls_memory->size();
+        const std::size_t offset = thread->tls_memory->size();
         thread->tls_memory->insert(thread->tls_memory->end(), Memory::PAGE_SIZE, 0);
 
         auto& vm_manager = owner_process->vm_manager;
diff --git a/src/core/hle/kernel/thread.h b/src/core/hle/kernel/thread.h
index cb57ee78a..df4748942 100644
--- a/src/core/hle/kernel/thread.h
+++ b/src/core/hle/kernel/thread.h
@@ -254,7 +254,7 @@ public:
     Handle callback_handle;
 
     using WakeupCallback = bool(ThreadWakeupReason reason, SharedPtr<Thread> thread,
-                                SharedPtr<WaitObject> object, size_t index);
+                                SharedPtr<WaitObject> object, std::size_t index);
     // Callback that will be invoked when the thread is resumed from a waiting state. If the thread
     // was waiting via WaitSynchronizationN then the object will be the last object that became
     // available. In case of a timeout, the object will be nullptr.
diff --git a/src/core/hle/kernel/vm_manager.cpp b/src/core/hle/kernel/vm_manager.cpp
index 479cacb62..608cbd57b 100644
--- a/src/core/hle/kernel/vm_manager.cpp
+++ b/src/core/hle/kernel/vm_manager.cpp
@@ -86,7 +86,7 @@ VMManager::VMAHandle VMManager::FindVMA(VAddr target) const {
 
 ResultVal<VMManager::VMAHandle> VMManager::MapMemoryBlock(VAddr target,
                                                           std::shared_ptr<std::vector<u8>> block,
-                                                          size_t offset, u64 size,
+                                                          std::size_t offset, u64 size,
                                                           MemoryState state) {
     ASSERT(block != nullptr);
     ASSERT(offset + size <= block->size());
diff --git a/src/core/hle/kernel/vm_manager.h b/src/core/hle/kernel/vm_manager.h
index 98bd04bea..de75036c0 100644
--- a/src/core/hle/kernel/vm_manager.h
+++ b/src/core/hle/kernel/vm_manager.h
@@ -81,7 +81,7 @@ struct VirtualMemoryArea {
     /// Memory block backing this VMA.
     std::shared_ptr<std::vector<u8>> backing_block = nullptr;
     /// Offset into the backing_memory the mapping starts from.
-    size_t offset = 0;
+    std::size_t offset = 0;
 
     // Settings for type = BackingMemory
     /// Pointer backing this VMA. It will not be destroyed or freed when the VMA is removed.
@@ -147,7 +147,7 @@ public:
      * @param state MemoryState tag to attach to the VMA.
      */
     ResultVal<VMAHandle> MapMemoryBlock(VAddr target, std::shared_ptr<std::vector<u8>> block,
-                                        size_t offset, u64 size, MemoryState state);
+                                        std::size_t offset, u64 size, MemoryState state);
 
     /**
      * Maps an unmanaged host memory pointer at a given address.
diff --git a/src/core/hle/kernel/wait_object.cpp b/src/core/hle/kernel/wait_object.cpp
index eef00b729..b190ceb98 100644
--- a/src/core/hle/kernel/wait_object.cpp
+++ b/src/core/hle/kernel/wait_object.cpp
@@ -81,7 +81,7 @@ void WaitObject::WakeupWaitingThread(SharedPtr<Thread> thread) {
         }
     }
 
-    size_t index = thread->GetWaitObjectIndex(this);
+    std::size_t index = thread->GetWaitObjectIndex(this);
 
     for (auto& object : thread->wait_objects)
         object->RemoveWaitingThread(thread.get());
diff --git a/src/core/hle/service/acc/acc.cpp b/src/core/hle/service/acc/acc.cpp
index 1502dbf55..4d4eb542e 100644
--- a/src/core/hle/service/acc/acc.cpp
+++ b/src/core/hle/service/acc/acc.cpp
@@ -34,7 +34,7 @@ public:
         static const FunctionInfo functions[] = {
             {0, &IProfile::Get, "Get"},
             {1, &IProfile::GetBase, "GetBase"},
-            {10, nullptr, "GetImageSize"},
+            {10, &IProfile::GetImageSize, "GetImageSize"},
             {11, &IProfile::LoadImage, "LoadImage"},
         };
         RegisterHandlers(functions);
@@ -93,6 +93,14 @@ private:
         rb.Push<u32>(jpeg_size);
     }
 
+    void GetImageSize(Kernel::HLERequestContext& ctx) {
+        LOG_WARNING(Service_ACC, "(STUBBED) called");
+        constexpr u32 jpeg_size = 107;
+        IPC::ResponseBuilder rb{ctx, 3};
+        rb.Push(RESULT_SUCCESS);
+        rb.Push<u32>(jpeg_size);
+    }
+
     const ProfileManager& profile_manager;
     UUID user_id; ///< The user id this profile refers to.
 };
diff --git a/src/core/hle/service/acc/profile_manager.cpp b/src/core/hle/service/acc/profile_manager.cpp
index 4ccebef23..bcb3475db 100644
--- a/src/core/hle/service/acc/profile_manager.cpp
+++ b/src/core/hle/service/acc/profile_manager.cpp
@@ -25,7 +25,7 @@ const UUID& UUID::Generate() {
 ProfileManager::ProfileManager() {
     // TODO(ogniK): Create the default user we have for now until loading/saving users is added
     auto user_uuid = UUID{1, 0};
-    CreateNewUser(user_uuid, Settings::values.username);
+    ASSERT(CreateNewUser(user_uuid, Settings::values.username).IsSuccess());
     OpenUser(user_uuid);
 }
 
@@ -33,7 +33,7 @@ ProfileManager::~ProfileManager() = default;
 
 /// After a users creation it needs to be "registered" to the system. AddToProfiles handles the
 /// internal management of the users profiles
-boost::optional<size_t> ProfileManager::AddToProfiles(const ProfileInfo& user) {
+boost::optional<std::size_t> ProfileManager::AddToProfiles(const ProfileInfo& user) {
     if (user_count >= MAX_USERS) {
         return boost::none;
     }
@@ -42,7 +42,7 @@ boost::optional<size_t> ProfileManager::AddToProfiles(const ProfileInfo& user) {
 }
 
 /// Deletes a specific profile based on it's profile index
-bool ProfileManager::RemoveProfileAtIndex(size_t index) {
+bool ProfileManager::RemoveProfileAtIndex(std::size_t index) {
     if (index >= MAX_USERS || index >= user_count) {
         return false;
     }
@@ -91,7 +91,8 @@ ResultCode ProfileManager::CreateNewUser(UUID uuid, const ProfileUsername& usern
 /// specifically by allowing an std::string for the username. This is required specifically since
 /// we're loading a string straight from the config
 ResultCode ProfileManager::CreateNewUser(UUID uuid, const std::string& username) {
-    ProfileUsername username_output;
+    ProfileUsername username_output{};
+
     if (username.size() > username_output.size()) {
         std::copy_n(username.begin(), username_output.size(), username_output.begin());
     } else {
@@ -101,7 +102,7 @@ ResultCode ProfileManager::CreateNewUser(UUID uuid, const std::string& username)
 }
 
 /// Returns a users profile index based on their user id.
-boost::optional<size_t> ProfileManager::GetUserIndex(const UUID& uuid) const {
+boost::optional<std::size_t> ProfileManager::GetUserIndex(const UUID& uuid) const {
     if (!uuid) {
         return boost::none;
     }
@@ -110,16 +111,17 @@ boost::optional<size_t> ProfileManager::GetUserIndex(const UUID& uuid) const {
     if (iter == profiles.end()) {
         return boost::none;
     }
-    return static_cast<size_t>(std::distance(profiles.begin(), iter));
+    return static_cast<std::size_t>(std::distance(profiles.begin(), iter));
 }
 
 /// Returns a users profile index based on their profile
-boost::optional<size_t> ProfileManager::GetUserIndex(const ProfileInfo& user) const {
+boost::optional<std::size_t> ProfileManager::GetUserIndex(const ProfileInfo& user) const {
     return GetUserIndex(user.user_uuid);
 }
 
 /// Returns the data structure used by the switch when GetProfileBase is called on acc:*
-bool ProfileManager::GetProfileBase(boost::optional<size_t> index, ProfileBase& profile) const {
+bool ProfileManager::GetProfileBase(boost::optional<std::size_t> index,
+                                    ProfileBase& profile) const {
     if (index == boost::none || index >= MAX_USERS) {
         return false;
     }
@@ -143,14 +145,16 @@ bool ProfileManager::GetProfileBase(const ProfileInfo& user, ProfileBase& profil
 
 /// Returns the current user count on the system. We keep a variable which tracks the count so we
 /// don't have to loop the internal profile array every call.
-size_t ProfileManager::GetUserCount() const {
+
+std::size_t ProfileManager::GetUserCount() const {
     return user_count;
 }
 
 /// Lists the current "opened" users on the system. Users are typically not open until they sign
 /// into something or pick a profile. As of right now users should all be open until qlaunch is
 /// booting
-size_t ProfileManager::GetOpenUserCount() const {
+
+std::size_t ProfileManager::GetOpenUserCount() const {
     return std::count_if(profiles.begin(), profiles.end(),
                          [](const ProfileInfo& p) { return p.is_open; });
 }
@@ -206,7 +210,7 @@ UUID ProfileManager::GetLastOpenedUser() const {
 }
 
 /// Return the users profile base and the unknown arbitary data.
-bool ProfileManager::GetProfileBaseAndData(boost::optional<size_t> index, ProfileBase& profile,
+bool ProfileManager::GetProfileBaseAndData(boost::optional<std::size_t> index, ProfileBase& profile,
                                            ProfileData& data) const {
     if (GetProfileBase(index, profile)) {
         data = profiles[index.get()].data;
diff --git a/src/core/hle/service/acc/profile_manager.h b/src/core/hle/service/acc/profile_manager.h
index cd8df93a5..bffd4cf4d 100644
--- a/src/core/hle/service/acc/profile_manager.h
+++ b/src/core/hle/service/acc/profile_manager.h
@@ -12,8 +12,8 @@
 #include "core/hle/result.h"
 
 namespace Service::Account {
-constexpr size_t MAX_USERS = 8;
-constexpr size_t MAX_DATA = 128;
+constexpr std::size_t MAX_USERS = 8;
+constexpr std::size_t MAX_DATA = 128;
 constexpr u128 INVALID_UUID{{0, 0}};
 
 struct UUID {
@@ -87,18 +87,18 @@ public:
     ResultCode AddUser(const ProfileInfo& user);
     ResultCode CreateNewUser(UUID uuid, const ProfileUsername& username);
     ResultCode CreateNewUser(UUID uuid, const std::string& username);
-    boost::optional<size_t> GetUserIndex(const UUID& uuid) const;
-    boost::optional<size_t> GetUserIndex(const ProfileInfo& user) const;
-    bool GetProfileBase(boost::optional<size_t> index, ProfileBase& profile) const;
+    boost::optional<std::size_t> GetUserIndex(const UUID& uuid) const;
+    boost::optional<std::size_t> GetUserIndex(const ProfileInfo& user) const;
+    bool GetProfileBase(boost::optional<std::size_t> index, ProfileBase& profile) const;
     bool GetProfileBase(UUID uuid, ProfileBase& profile) const;
     bool GetProfileBase(const ProfileInfo& user, ProfileBase& profile) const;
-    bool GetProfileBaseAndData(boost::optional<size_t> index, ProfileBase& profile,
+    bool GetProfileBaseAndData(boost::optional<std::size_t> index, ProfileBase& profile,
                                ProfileData& data) const;
     bool GetProfileBaseAndData(UUID uuid, ProfileBase& profile, ProfileData& data) const;
     bool GetProfileBaseAndData(const ProfileInfo& user, ProfileBase& profile,
                                ProfileData& data) const;
-    size_t GetUserCount() const;
-    size_t GetOpenUserCount() const;
+    std::size_t GetUserCount() const;
+    std::size_t GetOpenUserCount() const;
     bool UserExists(UUID uuid) const;
     void OpenUser(UUID uuid);
     void CloseUser(UUID uuid);
@@ -110,9 +110,9 @@ public:
 
 private:
     std::array<ProfileInfo, MAX_USERS> profiles{};
-    size_t user_count = 0;
-    boost::optional<size_t> AddToProfiles(const ProfileInfo& profile);
-    bool RemoveProfileAtIndex(size_t index);
+    std::size_t user_count = 0;
+    boost::optional<std::size_t> AddToProfiles(const ProfileInfo& profile);
+    bool RemoveProfileAtIndex(std::size_t index);
     UUID last_opened_user{INVALID_UUID};
 };
 
diff --git a/src/core/hle/service/am/am.cpp b/src/core/hle/service/am/am.cpp
index a57ed3042..9c975325a 100644
--- a/src/core/hle/service/am/am.cpp
+++ b/src/core/hle/service/am/am.cpp
@@ -20,6 +20,7 @@
 #include "core/hle/service/nvflinger/nvflinger.h"
 #include "core/hle/service/pm/pm.h"
 #include "core/hle/service/set/set.h"
+#include "core/hle/service/vi/vi.h"
 #include "core/settings.h"
 
 namespace Service::AM {
@@ -334,7 +335,7 @@ ICommonStateGetter::ICommonStateGetter() : ServiceFramework("ICommonStateGetter"
         {51, nullptr, "SetVrModeEnabled"},
         {52, nullptr, "SwitchLcdBacklight"},
         {55, nullptr, "IsInControllerFirmwareUpdateSection"},
-        {60, nullptr, "GetDefaultDisplayResolution"},
+        {60, &ICommonStateGetter::GetDefaultDisplayResolution, "GetDefaultDisplayResolution"},
         {61, &ICommonStateGetter::GetDefaultDisplayResolutionChangeEvent,
          "GetDefaultDisplayResolutionChangeEvent"},
         {62, nullptr, "GetHdcpAuthenticationState"},
@@ -393,6 +394,21 @@ void ICommonStateGetter::GetDefaultDisplayResolutionChangeEvent(Kernel::HLEReque
     LOG_WARNING(Service_AM, "(STUBBED) called");
 }
 
+void ICommonStateGetter::GetDefaultDisplayResolution(Kernel::HLERequestContext& ctx) {
+    IPC::ResponseBuilder rb{ctx, 4};
+    rb.Push(RESULT_SUCCESS);
+
+    if (Settings::values.use_docked_mode) {
+        rb.Push(static_cast<u32>(Service::VI::DisplayResolution::DockedWidth));
+        rb.Push(static_cast<u32>(Service::VI::DisplayResolution::DockedHeight));
+    } else {
+        rb.Push(static_cast<u32>(Service::VI::DisplayResolution::UndockedWidth));
+        rb.Push(static_cast<u32>(Service::VI::DisplayResolution::UndockedHeight));
+    }
+
+    LOG_DEBUG(Service_AM, "called");
+}
+
 void ICommonStateGetter::GetOperationMode(Kernel::HLERequestContext& ctx) {
     const bool use_docked_mode{Settings::values.use_docked_mode};
     IPC::ResponseBuilder rb{ctx, 3};
@@ -456,7 +472,7 @@ private:
         IPC::RequestParser rp{ctx};
 
         const u64 offset{rp.Pop<u64>()};
-        const size_t size{ctx.GetWriteBufferSize()};
+        const std::size_t size{ctx.GetWriteBufferSize()};
 
         ASSERT(offset + size <= buffer.size());
 
diff --git a/src/core/hle/service/am/am.h b/src/core/hle/service/am/am.h
index fd9ae296b..b39b0d838 100644
--- a/src/core/hle/service/am/am.h
+++ b/src/core/hle/service/am/am.h
@@ -123,6 +123,7 @@ private:
     void GetOperationMode(Kernel::HLERequestContext& ctx);
     void GetPerformanceMode(Kernel::HLERequestContext& ctx);
     void GetBootMode(Kernel::HLERequestContext& ctx);
+    void GetDefaultDisplayResolution(Kernel::HLERequestContext& ctx);
 
     Kernel::SharedPtr<Kernel::Event> event;
 };
diff --git a/src/core/hle/service/audio/hwopus.cpp b/src/core/hle/service/audio/hwopus.cpp
index 668fef145..fc6067e59 100644
--- a/src/core/hle/service/audio/hwopus.cpp
+++ b/src/core/hle/service/audio/hwopus.cpp
@@ -61,7 +61,7 @@ private:
 
     bool Decoder_DecodeInterleaved(u32& consumed, u32& sample_count, const std::vector<u8>& input,
                                    std::vector<opus_int16>& output) {
-        size_t raw_output_sz = output.size() * sizeof(opus_int16);
+        std::size_t raw_output_sz = output.size() * sizeof(opus_int16);
         if (sizeof(OpusHeader) > input.size())
             return false;
         OpusHeader hdr{};
@@ -96,7 +96,7 @@ private:
     u32 channel_count;
 };
 
-static size_t WorkerBufferSize(u32 channel_count) {
+static std::size_t WorkerBufferSize(u32 channel_count) {
     ASSERT_MSG(channel_count == 1 || channel_count == 2, "Invalid channel count");
     return opus_decoder_get_size(static_cast<int>(channel_count));
 }
@@ -129,7 +129,7 @@ void HwOpus::OpenOpusDecoder(Kernel::HLERequestContext& ctx) {
                "Invalid sample rate");
     ASSERT_MSG(channel_count == 1 || channel_count == 2, "Invalid channel count");
 
-    size_t worker_sz = WorkerBufferSize(channel_count);
+    std::size_t worker_sz = WorkerBufferSize(channel_count);
     ASSERT_MSG(buffer_sz < worker_sz, "Worker buffer too large");
     std::unique_ptr<OpusDecoder, OpusDeleter> decoder{
         static_cast<OpusDecoder*>(operator new(worker_sz))};
diff --git a/src/core/hle/service/hid/hid.cpp b/src/core/hle/service/hid/hid.cpp
index a8e0c869f..256c49bfc 100644
--- a/src/core/hle/service/hid/hid.cpp
+++ b/src/core/hle/service/hid/hid.cpp
@@ -89,7 +89,7 @@ private:
         controller_header.left_color_body = JOYCON_BODY_NEON_BLUE;
         controller_header.left_color_buttons = JOYCON_BUTTONS_NEON_BLUE;
 
-        for (size_t controller = 0; controller < mem.controllers.size(); controller++) {
+        for (std::size_t controller = 0; controller < mem.controllers.size(); controller++) {
             for (auto& layout : mem.controllers[controller].layouts) {
                 layout.header.num_entries = HID_NUM_ENTRIES;
                 layout.header.max_entry_index = HID_NUM_ENTRIES - 1;
@@ -313,7 +313,7 @@ public:
             {64, nullptr, "DeactivateJoySixAxisSensor"},
             {65, nullptr, "GetJoySixAxisSensorLifoHandle"},
             {66, &Hid::StartSixAxisSensor, "StartSixAxisSensor"},
-            {67, nullptr, "StopSixAxisSensor"},
+            {67, &Hid::StopSixAxisSensor, "StopSixAxisSensor"},
             {68, nullptr, "IsSixAxisSensorFusionEnabled"},
             {69, nullptr, "EnableSixAxisSensorFusion"},
             {70, nullptr, "SetSixAxisSensorFusionParameters"},
@@ -329,7 +329,7 @@ public:
             {80, nullptr, "GetGyroscopeZeroDriftMode"},
             {81, nullptr, "ResetGyroscopeZeroDriftMode"},
             {82, &Hid::IsSixAxisSensorAtRest, "IsSixAxisSensorAtRest"},
-            {91, nullptr, "ActivateGesture"},
+            {91, &Hid::ActivateGesture, "ActivateGesture"},
             {100, &Hid::SetSupportedNpadStyleSet, "SetSupportedNpadStyleSet"},
             {101, &Hid::GetSupportedNpadStyleSet, "GetSupportedNpadStyleSet"},
             {102, &Hid::SetSupportedNpadIdType, "SetSupportedNpadIdType"},
@@ -364,8 +364,8 @@ public:
             {208, nullptr, "GetActualVibrationGcErmCommand"},
             {209, nullptr, "BeginPermitVibrationSession"},
             {210, nullptr, "EndPermitVibrationSession"},
-            {300, nullptr, "ActivateConsoleSixAxisSensor"},
-            {301, nullptr, "StartConsoleSixAxisSensor"},
+            {300, &Hid::ActivateConsoleSixAxisSensor, "ActivateConsoleSixAxisSensor"},
+            {301, &Hid::StartConsoleSixAxisSensor, "StartConsoleSixAxisSensor"},
             {302, nullptr, "StopConsoleSixAxisSensor"},
             {303, nullptr, "ActivateSevenSixAxisSensor"},
             {304, nullptr, "StartSevenSixAxisSensor"},
@@ -579,6 +579,30 @@ private:
         rb.Push(RESULT_SUCCESS);
         LOG_WARNING(Service_HID, "(STUBBED) called");
     }
+
+    void ActivateConsoleSixAxisSensor(Kernel::HLERequestContext& ctx) {
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(RESULT_SUCCESS);
+        LOG_WARNING(Service_HID, "(STUBBED) called");
+    }
+
+    void StartConsoleSixAxisSensor(Kernel::HLERequestContext& ctx) {
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(RESULT_SUCCESS);
+        LOG_WARNING(Service_HID, "(STUBBED) called");
+    }
+
+    void StopSixAxisSensor(Kernel::HLERequestContext& ctx) {
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(RESULT_SUCCESS);
+        LOG_WARNING(Service_HID, "(STUBBED) called");
+    }
+
+    void ActivateGesture(Kernel::HLERequestContext& ctx) {
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(RESULT_SUCCESS);
+        LOG_WARNING(Service_HID, "(STUBBED) called");
+    }
 };
 
 class HidDbg final : public ServiceFramework<HidDbg> {
diff --git a/src/core/hle/service/lm/lm.cpp b/src/core/hle/service/lm/lm.cpp
index 098da2a41..c89157a4d 100644
--- a/src/core/hle/service/lm/lm.cpp
+++ b/src/core/hle/service/lm/lm.cpp
@@ -99,7 +99,7 @@ private:
         std::string thread;
         while (addr < end_addr) {
             const Field field{static_cast<Field>(Memory::Read8(addr++))};
-            const size_t length{Memory::Read8(addr++)};
+            const std::size_t length{Memory::Read8(addr++)};
 
             if (static_cast<Field>(Memory::Read8(addr)) == Field::Skip) {
                 ++addr;
diff --git a/src/core/hle/service/ns/pl_u.cpp b/src/core/hle/service/ns/pl_u.cpp
index 447689a1a..1069d103f 100644
--- a/src/core/hle/service/ns/pl_u.cpp
+++ b/src/core/hle/service/ns/pl_u.cpp
@@ -78,7 +78,7 @@ enum class LoadState : u32 {
 };
 
 static void DecryptSharedFont(const std::vector<u32>& input, std::vector<u8>& output,
-                              size_t& offset) {
+                              std::size_t& offset) {
     ASSERT_MSG(offset + (input.size() * sizeof(u32)) < SHARED_FONT_MEM_SIZE,
                "Shared fonts exceeds 17mb!");
     ASSERT_MSG(input[0] == EXPECTED_MAGIC, "Failed to derive key, unexpected magic number");
@@ -95,7 +95,7 @@ static void DecryptSharedFont(const std::vector<u32>& input, std::vector<u8>& ou
 }
 
 static void EncryptSharedFont(const std::vector<u8>& input, std::vector<u8>& output,
-                              size_t& offset) {
+                              std::size_t& offset) {
     ASSERT_MSG(offset + input.size() + 8 < SHARED_FONT_MEM_SIZE, "Shared fonts exceeds 17mb!");
     const u32 KEY = EXPECTED_MAGIC ^ EXPECTED_RESULT;
     std::memcpy(output.data() + offset, &EXPECTED_RESULT, sizeof(u32)); // Magic header
@@ -113,7 +113,7 @@ static u32 GetU32Swapped(const u8* data) {
 }
 
 struct PL_U::Impl {
-    const FontRegion& GetSharedFontRegion(size_t index) const {
+    const FontRegion& GetSharedFontRegion(std::size_t index) const {
         if (index >= shared_font_regions.size() || shared_font_regions.empty()) {
             // No font fallback
             return EMPTY_REGION;
@@ -126,7 +126,7 @@ struct PL_U::Impl {
         // based on the shared memory dump
         unsigned cur_offset = 0;
 
-        for (size_t i = 0; i < SHARED_FONTS.size(); i++) {
+        for (std::size_t i = 0; i < SHARED_FONTS.size(); i++) {
             // Out of shared fonts/invalid font
             if (GetU32Swapped(input.data() + cur_offset) != EXPECTED_RESULT) {
                 break;
@@ -162,7 +162,7 @@ PL_U::PL_U() : ServiceFramework("pl:u"), impl{std::make_unique<Impl>()} {
     RegisterHandlers(functions);
     // Attempt to load shared font data from disk
     const auto nand = FileSystem::GetSystemNANDContents();
-    size_t offset = 0;
+    std::size_t offset = 0;
     // Rebuild shared fonts from data ncas
     if (nand->HasEntry(static_cast<u64>(FontArchives::Standard),
                        FileSys::ContentRecordType::Data)) {
@@ -344,7 +344,7 @@ void PL_U::GetSharedFontInOrderOfPriority(Kernel::HLERequestContext& ctx) {
     std::vector<u32> font_sizes;
 
     // TODO(ogniK): Have actual priority order
-    for (size_t i = 0; i < impl->shared_font_regions.size(); i++) {
+    for (std::size_t i = 0; i < impl->shared_font_regions.size(); i++) {
         font_codes.push_back(static_cast<u32>(i));
         auto region = impl->GetSharedFontRegion(i);
         font_offsets.push_back(region.offset);
diff --git a/src/core/hle/service/nvdrv/devices/nvhost_as_gpu.cpp b/src/core/hle/service/nvdrv/devices/nvhost_as_gpu.cpp
index 25d5a93fa..d8b8037a8 100644
--- a/src/core/hle/service/nvdrv/devices/nvhost_as_gpu.cpp
+++ b/src/core/hle/service/nvdrv/devices/nvhost_as_gpu.cpp
@@ -71,7 +71,7 @@ u32 nvhost_as_gpu::AllocateSpace(const std::vector<u8>& input, std::vector<u8>&
 }
 
 u32 nvhost_as_gpu::Remap(const std::vector<u8>& input, std::vector<u8>& output) {
-    size_t num_entries = input.size() / sizeof(IoctlRemapEntry);
+    std::size_t num_entries = input.size() / sizeof(IoctlRemapEntry);
 
     LOG_WARNING(Service_NVDRV, "(STUBBED) called, num_entries=0x{:X}", num_entries);
 
diff --git a/src/core/hle/service/nvflinger/nvflinger.cpp b/src/core/hle/service/nvflinger/nvflinger.cpp
index 7455ddd19..d47b6f659 100644
--- a/src/core/hle/service/nvflinger/nvflinger.cpp
+++ b/src/core/hle/service/nvflinger/nvflinger.cpp
@@ -23,7 +23,7 @@
 
 namespace Service::NVFlinger {
 
-constexpr size_t SCREEN_REFRESH_RATE = 60;
+constexpr std::size_t SCREEN_REFRESH_RATE = 60;
 constexpr u64 frame_ticks = static_cast<u64>(CoreTiming::BASE_CLOCK_RATE / SCREEN_REFRESH_RATE);
 
 NVFlinger::NVFlinger() {
diff --git a/src/core/hle/service/service.cpp b/src/core/hle/service/service.cpp
index 9bb7c7b26..62f049660 100644
--- a/src/core/hle/service/service.cpp
+++ b/src/core/hle/service/service.cpp
@@ -50,6 +50,7 @@
 #include "core/hle/service/nim/nim.h"
 #include "core/hle/service/ns/ns.h"
 #include "core/hle/service/nvdrv/nvdrv.h"
+#include "core/hle/service/nvflinger/nvflinger.h"
 #include "core/hle/service/pcie/pcie.h"
 #include "core/hle/service/pctl/pctl.h"
 #include "core/hle/service/pcv/pcv.h"
@@ -58,7 +59,6 @@
 #include "core/hle/service/psc/psc.h"
 #include "core/hle/service/service.h"
 #include "core/hle/service/set/settings.h"
-#include "core/hle/service/sm/controller.h"
 #include "core/hle/service/sm/sm.h"
 #include "core/hle/service/sockets/sockets.h"
 #include "core/hle/service/spl/module.h"
@@ -129,9 +129,9 @@ Kernel::SharedPtr<Kernel::ClientPort> ServiceFrameworkBase::CreatePort() {
     return client_port;
 }
 
-void ServiceFrameworkBase::RegisterHandlersBase(const FunctionInfoBase* functions, size_t n) {
+void ServiceFrameworkBase::RegisterHandlersBase(const FunctionInfoBase* functions, std::size_t n) {
     handlers.reserve(handlers.size() + n);
-    for (size_t i = 0; i < n; ++i) {
+    for (std::size_t i = 0; i < n; ++i) {
         // Usually this array is sorted by id already, so hint to insert at the end
         handlers.emplace_hint(handlers.cend(), functions[i].expected_header, functions[i]);
     }
diff --git a/src/core/hle/service/service.h b/src/core/hle/service/service.h
index 7a051523e..2fc57a82e 100644
--- a/src/core/hle/service/service.h
+++ b/src/core/hle/service/service.h
@@ -88,7 +88,7 @@ private:
     ServiceFrameworkBase(const char* service_name, u32 max_sessions, InvokerFn* handler_invoker);
     ~ServiceFrameworkBase();
 
-    void RegisterHandlersBase(const FunctionInfoBase* functions, size_t n);
+    void RegisterHandlersBase(const FunctionInfoBase* functions, std::size_t n);
     void ReportUnimplementedFunction(Kernel::HLERequestContext& ctx, const FunctionInfoBase* info);
 
     /// Identifier string used to connect to the service.
@@ -152,7 +152,7 @@ protected:
         : ServiceFrameworkBase(service_name, max_sessions, Invoker) {}
 
     /// Registers handlers in the service.
-    template <size_t N>
+    template <std::size_t N>
     void RegisterHandlers(const FunctionInfo (&functions)[N]) {
         RegisterHandlers(functions, N);
     }
@@ -161,7 +161,7 @@ protected:
      * Registers handlers in the service. Usually prefer using the other RegisterHandlers
      * overload in order to avoid needing to specify the array size.
      */
-    void RegisterHandlers(const FunctionInfo* functions, size_t n) {
+    void RegisterHandlers(const FunctionInfo* functions, std::size_t n) {
         RegisterHandlersBase(functions, n);
     }
 
diff --git a/src/core/hle/service/set/set.cpp b/src/core/hle/service/set/set.cpp
index 59eb20155..9e5af7839 100644
--- a/src/core/hle/service/set/set.cpp
+++ b/src/core/hle/service/set/set.cpp
@@ -32,21 +32,21 @@ constexpr std::array<LanguageCode, 17> available_language_codes = {{
     LanguageCode::ZH_HANT,
 }};
 
-constexpr size_t pre4_0_0_max_entries = 0xF;
-constexpr size_t post4_0_0_max_entries = 0x40;
+constexpr std::size_t pre4_0_0_max_entries = 0xF;
+constexpr std::size_t post4_0_0_max_entries = 0x40;
 
-LanguageCode GetLanguageCodeFromIndex(size_t index) {
+LanguageCode GetLanguageCodeFromIndex(std::size_t index) {
     return available_language_codes.at(index);
 }
 
-template <size_t size>
+template <std::size_t size>
 static std::array<LanguageCode, size> MakeLanguageCodeSubset() {
     std::array<LanguageCode, size> arr;
     std::copy_n(available_language_codes.begin(), size, arr.begin());
     return arr;
 }
 
-static void PushResponseLanguageCode(Kernel::HLERequestContext& ctx, size_t max_size) {
+static void PushResponseLanguageCode(Kernel::HLERequestContext& ctx, std::size_t max_size) {
     IPC::ResponseBuilder rb{ctx, 3};
     rb.Push(RESULT_SUCCESS);
     if (available_language_codes.size() > max_size)
diff --git a/src/core/hle/service/set/set.h b/src/core/hle/service/set/set.h
index 5f0214359..266f13e46 100644
--- a/src/core/hle/service/set/set.h
+++ b/src/core/hle/service/set/set.h
@@ -28,7 +28,7 @@ enum class LanguageCode : u64 {
     ZH_HANS = 0x00736E61482D687A,
     ZH_HANT = 0x00746E61482D687A,
 };
-LanguageCode GetLanguageCodeFromIndex(size_t idx);
+LanguageCode GetLanguageCodeFromIndex(std::size_t idx);
 
 class SET final : public ServiceFramework<SET> {
 public:
diff --git a/src/core/hle/service/sm/sm.cpp b/src/core/hle/service/sm/sm.cpp
index 18d1641b8..096f0fd52 100644
--- a/src/core/hle/service/sm/sm.cpp
+++ b/src/core/hle/service/sm/sm.cpp
@@ -15,6 +15,10 @@
 
 namespace Service::SM {
 
+constexpr ResultCode ERR_ALREADY_REGISTERED(ErrorModule::SM, 4);
+constexpr ResultCode ERR_INVALID_NAME(ErrorModule::SM, 6);
+constexpr ResultCode ERR_SERVICE_NOT_REGISTERED(ErrorModule::SM, 7);
+
 ServiceManager::ServiceManager() = default;
 ServiceManager::~ServiceManager() = default;
 
@@ -24,10 +28,10 @@ void ServiceManager::InvokeControlRequest(Kernel::HLERequestContext& context) {
 
 static ResultCode ValidateServiceName(const std::string& name) {
     if (name.size() <= 0 || name.size() > 8) {
-        return ERR_INVALID_NAME_SIZE;
+        return ERR_INVALID_NAME;
     }
     if (name.find('\0') != std::string::npos) {
-        return ERR_NAME_CONTAINS_NUL;
+        return ERR_INVALID_NAME;
     }
     return RESULT_SUCCESS;
 }
diff --git a/src/core/hle/service/sm/sm.h b/src/core/hle/service/sm/sm.h
index a58d922a0..da2c51082 100644
--- a/src/core/hle/service/sm/sm.h
+++ b/src/core/hle/service/sm/sm.h
@@ -36,12 +36,6 @@ private:
     std::shared_ptr<ServiceManager> service_manager;
 };
 
-constexpr ResultCode ERR_SERVICE_NOT_REGISTERED(-1);
-constexpr ResultCode ERR_MAX_CONNECTIONS_REACHED(-1);
-constexpr ResultCode ERR_INVALID_NAME_SIZE(-1);
-constexpr ResultCode ERR_NAME_CONTAINS_NUL(-1);
-constexpr ResultCode ERR_ALREADY_REGISTERED(-1);
-
 class ServiceManager {
 public:
     static void InstallInterfaces(std::shared_ptr<ServiceManager> self);
diff --git a/src/core/hle/service/spl/module.cpp b/src/core/hle/service/spl/module.cpp
index 0d8441fb1..44a6717d0 100644
--- a/src/core/hle/service/spl/module.cpp
+++ b/src/core/hle/service/spl/module.cpp
@@ -21,7 +21,7 @@ Module::Interface::~Interface() = default;
 void Module::Interface::GetRandomBytes(Kernel::HLERequestContext& ctx) {
     IPC::RequestParser rp{ctx};
 
-    size_t size = ctx.GetWriteBufferSize();
+    std::size_t size = ctx.GetWriteBufferSize();
 
     std::vector<u8> data(size);
     std::generate(data.begin(), data.end(), std::rand);
diff --git a/src/core/hle/service/vi/vi.cpp b/src/core/hle/service/vi/vi.cpp
index cf94b00e6..d0cde5ede 100644
--- a/src/core/hle/service/vi/vi.cpp
+++ b/src/core/hle/service/vi/vi.cpp
@@ -4,25 +4,28 @@
 
 #include <algorithm>
 #include <array>
+#include <cstring>
 #include <memory>
 #include <type_traits>
 #include <utility>
 #include <boost/optional.hpp>
 #include "common/alignment.h"
+#include "common/assert.h"
+#include "common/common_funcs.h"
+#include "common/logging/log.h"
 #include "common/math_util.h"
-#include "common/scope_exit.h"
+#include "common/swap.h"
 #include "core/core_timing.h"
 #include "core/hle/ipc_helpers.h"
 #include "core/hle/kernel/event.h"
 #include "core/hle/service/nvdrv/nvdrv.h"
 #include "core/hle/service/nvflinger/buffer_queue.h"
+#include "core/hle/service/nvflinger/nvflinger.h"
 #include "core/hle/service/vi/vi.h"
 #include "core/hle/service/vi/vi_m.h"
 #include "core/hle/service/vi/vi_s.h"
 #include "core/hle/service/vi/vi_u.h"
 #include "core/settings.h"
-#include "video_core/renderer_base.h"
-#include "video_core/video_core.h"
 
 namespace Service::VI {
 
@@ -38,7 +41,7 @@ static_assert(sizeof(DisplayInfo) == 0x60, "DisplayInfo has wrong size");
 class Parcel {
 public:
     // This default size was chosen arbitrarily.
-    static constexpr size_t DefaultBufferSize = 0x40;
+    static constexpr std::size_t DefaultBufferSize = 0x40;
     Parcel() : buffer(DefaultBufferSize) {}
     explicit Parcel(std::vector<u8> data) : buffer(std::move(data)) {}
     virtual ~Parcel() = default;
@@ -66,7 +69,7 @@ public:
         return val;
     }
 
-    std::vector<u8> ReadBlock(size_t length) {
+    std::vector<u8> ReadBlock(std::size_t length) {
         ASSERT(read_index + length <= buffer.size());
         const u8* const begin = buffer.data() + read_index;
         const u8* const end = begin + length;
@@ -156,8 +159,8 @@ private:
     static_assert(sizeof(Header) == 16, "ParcelHeader has wrong size");
 
     std::vector<u8> buffer;
-    size_t read_index = 0;
-    size_t write_index = 0;
+    std::size_t read_index = 0;
+    std::size_t write_index = 0;
 };
 
 class NativeWindow : public Parcel {
diff --git a/src/core/hle/service/vi/vi.h b/src/core/hle/service/vi/vi.h
index c2dc83605..e3963502a 100644
--- a/src/core/hle/service/vi/vi.h
+++ b/src/core/hle/service/vi/vi.h
@@ -4,11 +4,10 @@
 
 #pragma once
 
-#include "core/hle/service/nvflinger/nvflinger.h"
 #include "core/hle/service/service.h"
 
-namespace CoreTiming {
-struct EventType;
+namespace Service::NVFlinger {
+class NVFlinger;
 }
 
 namespace Service::VI {
diff --git a/src/core/loader/elf.cpp b/src/core/loader/elf.cpp
index 120e1e133..0e2af20b4 100644
--- a/src/core/loader/elf.cpp
+++ b/src/core/loader/elf.cpp
@@ -300,7 +300,7 @@ SharedPtr<CodeSet> ElfReader::LoadInto(u32 vaddr) {
     }
 
     std::vector<u8> program_image(total_image_size);
-    size_t current_image_position = 0;
+    std::size_t current_image_position = 0;
 
     auto& kernel = Core::System::GetInstance().Kernel();
     SharedPtr<CodeSet> codeset = CodeSet::Create(kernel, "");
diff --git a/src/core/loader/loader.cpp b/src/core/loader/loader.cpp
index fa43a2650..f2a183ba1 100644
--- a/src/core/loader/loader.cpp
+++ b/src/core/loader/loader.cpp
@@ -155,7 +155,7 @@ constexpr std::array<const char*, 58> RESULT_MESSAGES{
 };
 
 std::ostream& operator<<(std::ostream& os, ResultStatus status) {
-    os << RESULT_MESSAGES.at(static_cast<size_t>(status));
+    os << RESULT_MESSAGES.at(static_cast<std::size_t>(status));
     return os;
 }
 
diff --git a/src/core/memory.cpp b/src/core/memory.cpp
index 0e4e0157c..316b46820 100644
--- a/src/core/memory.cpp
+++ b/src/core/memory.cpp
@@ -370,16 +370,16 @@ u64 Read64(const VAddr addr) {
 }
 
 void ReadBlock(const Kernel::Process& process, const VAddr src_addr, void* dest_buffer,
-               const size_t size) {
+               const std::size_t size) {
     auto& page_table = process.vm_manager.page_table;
 
-    size_t remaining_size = size;
-    size_t page_index = src_addr >> PAGE_BITS;
-    size_t page_offset = src_addr & PAGE_MASK;
+    std::size_t remaining_size = size;
+    std::size_t page_index = src_addr >> PAGE_BITS;
+    std::size_t page_offset = src_addr & PAGE_MASK;
 
     while (remaining_size > 0) {
-        const size_t copy_amount =
-            std::min(static_cast<size_t>(PAGE_SIZE) - page_offset, remaining_size);
+        const std::size_t copy_amount =
+            std::min(static_cast<std::size_t>(PAGE_SIZE) - page_offset, remaining_size);
         const VAddr current_vaddr = static_cast<VAddr>((page_index << PAGE_BITS) + page_offset);
 
         switch (page_table.attributes[page_index]) {
@@ -414,7 +414,7 @@ void ReadBlock(const Kernel::Process& process, const VAddr src_addr, void* dest_
     }
 }
 
-void ReadBlock(const VAddr src_addr, void* dest_buffer, const size_t size) {
+void ReadBlock(const VAddr src_addr, void* dest_buffer, const std::size_t size) {
     ReadBlock(*Core::CurrentProcess(), src_addr, dest_buffer, size);
 }
 
@@ -435,15 +435,15 @@ void Write64(const VAddr addr, const u64 data) {
 }
 
 void WriteBlock(const Kernel::Process& process, const VAddr dest_addr, const void* src_buffer,
-                const size_t size) {
+                const std::size_t size) {
     auto& page_table = process.vm_manager.page_table;
-    size_t remaining_size = size;
-    size_t page_index = dest_addr >> PAGE_BITS;
-    size_t page_offset = dest_addr & PAGE_MASK;
+    std::size_t remaining_size = size;
+    std::size_t page_index = dest_addr >> PAGE_BITS;
+    std::size_t page_offset = dest_addr & PAGE_MASK;
 
     while (remaining_size > 0) {
-        const size_t copy_amount =
-            std::min(static_cast<size_t>(PAGE_SIZE) - page_offset, remaining_size);
+        const std::size_t copy_amount =
+            std::min(static_cast<std::size_t>(PAGE_SIZE) - page_offset, remaining_size);
         const VAddr current_vaddr = static_cast<VAddr>((page_index << PAGE_BITS) + page_offset);
 
         switch (page_table.attributes[page_index]) {
@@ -477,19 +477,19 @@ void WriteBlock(const Kernel::Process& process, const VAddr dest_addr, const voi
     }
 }
 
-void WriteBlock(const VAddr dest_addr, const void* src_buffer, const size_t size) {
+void WriteBlock(const VAddr dest_addr, const void* src_buffer, const std::size_t size) {
     WriteBlock(*Core::CurrentProcess(), dest_addr, src_buffer, size);
 }
 
-void ZeroBlock(const Kernel::Process& process, const VAddr dest_addr, const size_t size) {
+void ZeroBlock(const Kernel::Process& process, const VAddr dest_addr, const std::size_t size) {
     auto& page_table = process.vm_manager.page_table;
-    size_t remaining_size = size;
-    size_t page_index = dest_addr >> PAGE_BITS;
-    size_t page_offset = dest_addr & PAGE_MASK;
+    std::size_t remaining_size = size;
+    std::size_t page_index = dest_addr >> PAGE_BITS;
+    std::size_t page_offset = dest_addr & PAGE_MASK;
 
     while (remaining_size > 0) {
-        const size_t copy_amount =
-            std::min(static_cast<size_t>(PAGE_SIZE) - page_offset, remaining_size);
+        const std::size_t copy_amount =
+            std::min(static_cast<std::size_t>(PAGE_SIZE) - page_offset, remaining_size);
         const VAddr current_vaddr = static_cast<VAddr>((page_index << PAGE_BITS) + page_offset);
 
         switch (page_table.attributes[page_index]) {
@@ -522,15 +522,16 @@ void ZeroBlock(const Kernel::Process& process, const VAddr dest_addr, const size
     }
 }
 
-void CopyBlock(const Kernel::Process& process, VAddr dest_addr, VAddr src_addr, const size_t size) {
+void CopyBlock(const Kernel::Process& process, VAddr dest_addr, VAddr src_addr,
+               const std::size_t size) {
     auto& page_table = process.vm_manager.page_table;
-    size_t remaining_size = size;
-    size_t page_index = src_addr >> PAGE_BITS;
-    size_t page_offset = src_addr & PAGE_MASK;
+    std::size_t remaining_size = size;
+    std::size_t page_index = src_addr >> PAGE_BITS;
+    std::size_t page_offset = src_addr & PAGE_MASK;
 
     while (remaining_size > 0) {
-        const size_t copy_amount =
-            std::min(static_cast<size_t>(PAGE_SIZE) - page_offset, remaining_size);
+        const std::size_t copy_amount =
+            std::min(static_cast<std::size_t>(PAGE_SIZE) - page_offset, remaining_size);
         const VAddr current_vaddr = static_cast<VAddr>((page_index << PAGE_BITS) + page_offset);
 
         switch (page_table.attributes[page_index]) {
@@ -565,7 +566,7 @@ void CopyBlock(const Kernel::Process& process, VAddr dest_addr, VAddr src_addr,
     }
 }
 
-void CopyBlock(VAddr dest_addr, VAddr src_addr, size_t size) {
+void CopyBlock(VAddr dest_addr, VAddr src_addr, std::size_t size) {
     CopyBlock(*Core::CurrentProcess(), dest_addr, src_addr, size);
 }
 
diff --git a/src/core/memory.h b/src/core/memory.h
index f06e04a75..2a27c0251 100644
--- a/src/core/memory.h
+++ b/src/core/memory.h
@@ -22,11 +22,11 @@ namespace Memory {
  * Page size used by the ARM architecture. This is the smallest granularity with which memory can
  * be mapped.
  */
-constexpr size_t PAGE_BITS = 12;
+constexpr std::size_t PAGE_BITS = 12;
 constexpr u64 PAGE_SIZE = 1 << PAGE_BITS;
 constexpr u64 PAGE_MASK = PAGE_SIZE - 1;
-constexpr size_t ADDRESS_SPACE_BITS = 36;
-constexpr size_t PAGE_TABLE_NUM_ENTRIES = 1ULL << (ADDRESS_SPACE_BITS - PAGE_BITS);
+constexpr std::size_t ADDRESS_SPACE_BITS = 36;
+constexpr std::size_t PAGE_TABLE_NUM_ENTRIES = 1ULL << (ADDRESS_SPACE_BITS - PAGE_BITS);
 
 enum class PageType : u8 {
     /// Page is unmapped and should cause an access error.
@@ -154,13 +154,13 @@ void Write16(VAddr addr, u16 data);
 void Write32(VAddr addr, u32 data);
 void Write64(VAddr addr, u64 data);
 
-void ReadBlock(const Kernel::Process& process, VAddr src_addr, void* dest_buffer, size_t size);
-void ReadBlock(VAddr src_addr, void* dest_buffer, size_t size);
+void ReadBlock(const Kernel::Process& process, VAddr src_addr, void* dest_buffer, std::size_t size);
+void ReadBlock(VAddr src_addr, void* dest_buffer, std::size_t size);
 void WriteBlock(const Kernel::Process& process, VAddr dest_addr, const void* src_buffer,
-                size_t size);
-void WriteBlock(VAddr dest_addr, const void* src_buffer, size_t size);
-void ZeroBlock(const Kernel::Process& process, VAddr dest_addr, size_t size);
-void CopyBlock(VAddr dest_addr, VAddr src_addr, size_t size);
+                std::size_t size);
+void WriteBlock(VAddr dest_addr, const void* src_buffer, std::size_t size);
+void ZeroBlock(const Kernel::Process& process, VAddr dest_addr, std::size_t size);
+void CopyBlock(VAddr dest_addr, VAddr src_addr, std::size_t size);
 
 u8* GetPointer(VAddr vaddr);
 
diff --git a/src/core/memory_hook.h b/src/core/memory_hook.h
index e8ea19333..0269c7ff1 100644
--- a/src/core/memory_hook.h
+++ b/src/core/memory_hook.h
@@ -32,14 +32,14 @@ public:
     virtual boost::optional<u32> Read32(VAddr addr) = 0;
     virtual boost::optional<u64> Read64(VAddr addr) = 0;
 
-    virtual bool ReadBlock(VAddr src_addr, void* dest_buffer, size_t size) = 0;
+    virtual bool ReadBlock(VAddr src_addr, void* dest_buffer, std::size_t size) = 0;
 
     virtual bool Write8(VAddr addr, u8 data) = 0;
     virtual bool Write16(VAddr addr, u16 data) = 0;
     virtual bool Write32(VAddr addr, u32 data) = 0;
     virtual bool Write64(VAddr addr, u64 data) = 0;
 
-    virtual bool WriteBlock(VAddr dest_addr, const void* src_buffer, size_t size) = 0;
+    virtual bool WriteBlock(VAddr dest_addr, const void* src_buffer, std::size_t size) = 0;
 };
 
 using MemoryHookPointer = std::shared_ptr<MemoryHook>;
diff --git a/src/core/tracer/recorder.cpp b/src/core/tracer/recorder.cpp
index af032f0c9..73cacb47f 100644
--- a/src/core/tracer/recorder.cpp
+++ b/src/core/tracer/recorder.cpp
@@ -76,7 +76,7 @@ void Recorder::Finish(const std::string& filename) {
     try {
         // Open file and write header
         FileUtil::IOFile file(filename, "wb");
-        size_t written = file.WriteObject(header);
+        std::size_t written = file.WriteObject(header);
         if (written != 1 || file.Tell() != initial.gpu_registers)
             throw "Failed to write header";