Implement macro JIT

1 files changed, 0 insertions, 352 deletions

diff --git a/src/video_core/macro_interpreter.cpp b/src/video_core/macro_interpreter.cpp
deleted file mode 100644
index 947364928..000000000
--- a/src/video_core/macro_interpreter.cpp
+++ /dev/null
@@ -1,352 +0,0 @@
-// Copyright 2018 yuzu Emulator Project
-// Licensed under GPLv2 or any later version
-// Refer to the license.txt file included.
-
-#include "common/assert.h"
-#include "common/logging/log.h"
-#include "common/microprofile.h"
-#include "video_core/engines/maxwell_3d.h"
-#include "video_core/macro_interpreter.h"
-
-MICROPROFILE_DEFINE(MacroInterp, "GPU", "Execute macro interpreter", MP_RGB(128, 128, 192));
-
-namespace Tegra {
-namespace {
-enum class Operation : u32 {
-    ALU = 0,
-    AddImmediate = 1,
-    ExtractInsert = 2,
-    ExtractShiftLeftImmediate = 3,
-    ExtractShiftLeftRegister = 4,
-    Read = 5,
-    Unused = 6, // This operation doesn't seem to be a valid encoding.
-    Branch = 7,
-};
-} // Anonymous namespace
-
-enum class MacroInterpreter::ALUOperation : u32 {
-    Add = 0,
-    AddWithCarry = 1,
-    Subtract = 2,
-    SubtractWithBorrow = 3,
-    // Operations 4-7 don't seem to be valid encodings.
-    Xor = 8,
-    Or = 9,
-    And = 10,
-    AndNot = 11,
-    Nand = 12
-};
-
-enum class MacroInterpreter::ResultOperation : u32 {
-    IgnoreAndFetch = 0,
-    Move = 1,
-    MoveAndSetMethod = 2,
-    FetchAndSend = 3,
-    MoveAndSend = 4,
-    FetchAndSetMethod = 5,
-    MoveAndSetMethodFetchAndSend = 6,
-    MoveAndSetMethodSend = 7
-};
-
-enum class MacroInterpreter::BranchCondition : u32 {
-    Zero = 0,
-    NotZero = 1,
-};
-
-union MacroInterpreter::Opcode {
-    u32 raw;
-    BitField<0, 3, Operation> operation;
-    BitField<4, 3, ResultOperation> result_operation;
-    BitField<4, 1, BranchCondition> branch_condition;
-    // If set on a branch, then the branch doesn't have a delay slot.
-    BitField<5, 1, u32> branch_annul;
-    BitField<7, 1, u32> is_exit;
-    BitField<8, 3, u32> dst;
-    BitField<11, 3, u32> src_a;
-    BitField<14, 3, u32> src_b;
-    // The signed immediate overlaps the second source operand and the alu operation.
-    BitField<14, 18, s32> immediate;
-
-    BitField<17, 5, ALUOperation> alu_operation;
-
-    // Bitfield instructions data
-    BitField<17, 5, u32> bf_src_bit;
-    BitField<22, 5, u32> bf_size;
-    BitField<27, 5, u32> bf_dst_bit;
-
-    u32 GetBitfieldMask() const {
-        return (1 << bf_size) - 1;
-    }
-
-    s32 GetBranchTarget() const {
-        return static_cast<s32>(immediate * sizeof(u32));
-    }
-};
-
-MacroInterpreter::MacroInterpreter(Engines::Maxwell3D& maxwell3d) : maxwell3d(maxwell3d) {}
-
-void MacroInterpreter::Execute(u32 offset, std::size_t num_parameters, const u32* parameters) {
-    MICROPROFILE_SCOPE(MacroInterp);
-    Reset();
-
-    registers[1] = parameters[0];
-
-    if (num_parameters > parameters_capacity) {
-        parameters_capacity = num_parameters;
-        this->parameters = std::make_unique<u32[]>(num_parameters);
-    }
-    std::memcpy(this->parameters.get(), parameters, num_parameters * sizeof(u32));
-    this->num_parameters = num_parameters;
-
-    // Execute the code until we hit an exit condition.
-    bool keep_executing = true;
-    while (keep_executing) {
-        keep_executing = Step(offset, false);
-    }
-
-    // Assert the the macro used all the input parameters
-    ASSERT(next_parameter_index == num_parameters);
-}
-
-void MacroInterpreter::Reset() {
-    registers = {};
-    pc = 0;
-    delayed_pc = {};
-    method_address.raw = 0;
-    num_parameters = 0;
-    // The next parameter index starts at 1, because $r1 already has the value of the first
-    // parameter.
-    next_parameter_index = 1;
-    carry_flag = false;
-}
-
-bool MacroInterpreter::Step(u32 offset, bool is_delay_slot) {
-    u32 base_address = pc;
-
-    Opcode opcode = GetOpcode(offset);
-    pc += 4;
-
-    // Update the program counter if we were delayed
-    if (delayed_pc) {
-        ASSERT(is_delay_slot);
-        pc = *delayed_pc;
-        delayed_pc = {};
-    }
-
-    switch (opcode.operation) {
-    case Operation::ALU: {
-        u32 result = GetALUResult(opcode.alu_operation, GetRegister(opcode.src_a),
-                                  GetRegister(opcode.src_b));
-        ProcessResult(opcode.result_operation, opcode.dst, result);
-        break;
-    }
-    case Operation::AddImmediate: {
-        ProcessResult(opcode.result_operation, opcode.dst,
-                      GetRegister(opcode.src_a) + opcode.immediate);
-        break;
-    }
-    case Operation::ExtractInsert: {
-        u32 dst = GetRegister(opcode.src_a);
-        u32 src = GetRegister(opcode.src_b);
-
-        src = (src >> opcode.bf_src_bit) & opcode.GetBitfieldMask();
-        dst &= ~(opcode.GetBitfieldMask() << opcode.bf_dst_bit);
-        dst |= src << opcode.bf_dst_bit;
-        ProcessResult(opcode.result_operation, opcode.dst, dst);
-        break;
-    }
-    case Operation::ExtractShiftLeftImmediate: {
-        u32 dst = GetRegister(opcode.src_a);
-        u32 src = GetRegister(opcode.src_b);
-
-        u32 result = ((src >> dst) & opcode.GetBitfieldMask()) << opcode.bf_dst_bit;
-
-        ProcessResult(opcode.result_operation, opcode.dst, result);
-        break;
-    }
-    case Operation::ExtractShiftLeftRegister: {
-        u32 dst = GetRegister(opcode.src_a);
-        u32 src = GetRegister(opcode.src_b);
-
-        u32 result = ((src >> opcode.bf_src_bit) & opcode.GetBitfieldMask()) << dst;
-
-        ProcessResult(opcode.result_operation, opcode.dst, result);
-        break;
-    }
-    case Operation::Read: {
-        u32 result = Read(GetRegister(opcode.src_a) + opcode.immediate);
-        ProcessResult(opcode.result_operation, opcode.dst, result);
-        break;
-    }
-    case Operation::Branch: {
-        ASSERT_MSG(!is_delay_slot, "Executing a branch in a delay slot is not valid");
-        u32 value = GetRegister(opcode.src_a);
-        bool taken = EvaluateBranchCondition(opcode.branch_condition, value);
-        if (taken) {
-            // Ignore the delay slot if the branch has the annul bit.
-            if (opcode.branch_annul) {
-                pc = base_address + opcode.GetBranchTarget();
-                return true;
-            }
-
-            delayed_pc = base_address + opcode.GetBranchTarget();
-            // Execute one more instruction due to the delay slot.
-            return Step(offset, true);
-        }
-        break;
-    }
-    default:
-        UNIMPLEMENTED_MSG("Unimplemented macro operation {}",
-                          static_cast<u32>(opcode.operation.Value()));
-    }
-
-    // An instruction with the Exit flag will not actually
-    // cause an exit if it's executed inside a delay slot.
-    if (opcode.is_exit && !is_delay_slot) {
-        // Exit has a delay slot, execute the next instruction
-        Step(offset, true);
-        return false;
-    }
-
-    return true;
-}
-
-MacroInterpreter::Opcode MacroInterpreter::GetOpcode(u32 offset) const {
-    const auto& macro_memory{maxwell3d.GetMacroMemory()};
-    ASSERT((pc % sizeof(u32)) == 0);
-    ASSERT((pc + offset) < macro_memory.size() * sizeof(u32));
-    return {macro_memory[offset + pc / sizeof(u32)]};
-}
-
-u32 MacroInterpreter::GetALUResult(ALUOperation operation, u32 src_a, u32 src_b) {
-    switch (operation) {
-    case ALUOperation::Add: {
-        const u64 result{static_cast<u64>(src_a) + src_b};
-        carry_flag = result > 0xffffffff;
-        return static_cast<u32>(result);
-    }
-    case ALUOperation::AddWithCarry: {
-        const u64 result{static_cast<u64>(src_a) + src_b + (carry_flag ? 1ULL : 0ULL)};
-        carry_flag = result > 0xffffffff;
-        return static_cast<u32>(result);
-    }
-    case ALUOperation::Subtract: {
-        const u64 result{static_cast<u64>(src_a) - src_b};
-        carry_flag = result < 0x100000000;
-        return static_cast<u32>(result);
-    }
-    case ALUOperation::SubtractWithBorrow: {
-        const u64 result{static_cast<u64>(src_a) - src_b - (carry_flag ? 0ULL : 1ULL)};
-        carry_flag = result < 0x100000000;
-        return static_cast<u32>(result);
-    }
-    case ALUOperation::Xor:
-        return src_a ^ src_b;
-    case ALUOperation::Or:
-        return src_a | src_b;
-    case ALUOperation::And:
-        return src_a & src_b;
-    case ALUOperation::AndNot:
-        return src_a & ~src_b;
-    case ALUOperation::Nand:
-        return ~(src_a & src_b);
-
-    default:
-        UNIMPLEMENTED_MSG("Unimplemented ALU operation {}", static_cast<u32>(operation));
-        return 0;
-    }
-}
-
-void MacroInterpreter::ProcessResult(ResultOperation operation, u32 reg, u32 result) {
-    switch (operation) {
-    case ResultOperation::IgnoreAndFetch:
-        // Fetch parameter and ignore result.
-        SetRegister(reg, FetchParameter());
-        break;
-    case ResultOperation::Move:
-        // Move result.
-        SetRegister(reg, result);
-        break;
-    case ResultOperation::MoveAndSetMethod:
-        // Move result and use as Method Address.
-        SetRegister(reg, result);
-        SetMethodAddress(result);
-        break;
-    case ResultOperation::FetchAndSend:
-        // Fetch parameter and send result.
-        SetRegister(reg, FetchParameter());
-        Send(result);
-        break;
-    case ResultOperation::MoveAndSend:
-        // Move and send result.
-        SetRegister(reg, result);
-        Send(result);
-        break;
-    case ResultOperation::FetchAndSetMethod:
-        // Fetch parameter and use result as Method Address.
-        SetRegister(reg, FetchParameter());
-        SetMethodAddress(result);
-        break;
-    case ResultOperation::MoveAndSetMethodFetchAndSend:
-        // Move result and use as Method Address, then fetch and send parameter.
-        SetRegister(reg, result);
-        SetMethodAddress(result);
-        Send(FetchParameter());
-        break;
-    case ResultOperation::MoveAndSetMethodSend:
-        // Move result and use as Method Address, then send bits 12:17 of result.
-        SetRegister(reg, result);
-        SetMethodAddress(result);
-        Send((result >> 12) & 0b111111);
-        break;
-    default:
-        UNIMPLEMENTED_MSG("Unimplemented result operation {}", static_cast<u32>(operation));
-    }
-}
-
-u32 MacroInterpreter::FetchParameter() {
-    ASSERT(next_parameter_index < num_parameters);
-    return parameters[next_parameter_index++];
-}
-
-u32 MacroInterpreter::GetRegister(u32 register_id) const {
-    return registers.at(register_id);
-}
-
-void MacroInterpreter::SetRegister(u32 register_id, u32 value) {
-    // Register 0 is hardwired as the zero register.
-    // Ensure no writes to it actually occur.
-    if (register_id == 0) {
-        return;
-    }
-
-    registers.at(register_id) = value;
-}
-
-void MacroInterpreter::SetMethodAddress(u32 address) {
-    method_address.raw = address;
-}
-
-void MacroInterpreter::Send(u32 value) {
-    maxwell3d.CallMethodFromMME(method_address.address, value);
-    // Increment the method address by the method increment.
-    method_address.address.Assign(method_address.address.Value() +
-                                  method_address.increment.Value());
-}
-
-u32 MacroInterpreter::Read(u32 method) const {
-    return maxwell3d.GetRegisterValue(method);
-}
-
-bool MacroInterpreter::EvaluateBranchCondition(BranchCondition cond, u32 value) const {
-    switch (cond) {
-    case BranchCondition::Zero:
-        return value == 0;
-    case BranchCondition::NotZero:
-        return value != 0;
-    }
-    UNREACHABLE();
-    return true;
-}
-
-} // namespace Tegra