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// Copyright 2020 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include <array>
#include <bitset>
#include <xbyak/xbyak.h>
#include "common/bit_field.h"
#include "common/common_types.h"
#include "common/x64/xbyak_abi.h"
#include "video_core/macro/macro.h"
namespace Tegra {
namespace Engines {
class Maxwell3D;
}
/// MAX_CODE_SIZE is arbitrarily chosen based on current booting games
constexpr size_t MAX_CODE_SIZE = 0x10000;
class MacroJITx64 final : public MacroEngine {
public:
explicit MacroJITx64(Engines::Maxwell3D& maxwell3d_);
protected:
std::unique_ptr<CachedMacro> Compile(const std::vector<u32>& code) override;
private:
Engines::Maxwell3D& maxwell3d;
};
class MacroJITx64Impl : public Xbyak::CodeGenerator, public CachedMacro {
public:
explicit MacroJITx64Impl(Engines::Maxwell3D& maxwell3d_, const std::vector<u32>& code_);
~MacroJITx64Impl();
void Execute(const std::vector<u32>& parameters, u32 method) override;
void Compile_ALU(Macro::Opcode opcode);
void Compile_AddImmediate(Macro::Opcode opcode);
void Compile_ExtractInsert(Macro::Opcode opcode);
void Compile_ExtractShiftLeftImmediate(Macro::Opcode opcode);
void Compile_ExtractShiftLeftRegister(Macro::Opcode opcode);
void Compile_Read(Macro::Opcode opcode);
void Compile_Branch(Macro::Opcode opcode);
private:
void Optimizer_ScanFlags();
void Compile();
bool Compile_NextInstruction();
Xbyak::Reg32 Compile_FetchParameter();
Xbyak::Reg32 Compile_GetRegister(u32 index, Xbyak::Reg32 dst);
void Compile_ProcessResult(Macro::ResultOperation operation, u32 reg);
void Compile_Send(Xbyak::Reg32 value);
Macro::Opcode GetOpCode() const;
std::bitset<32> PersistentCallerSavedRegs() const;
struct JITState {
Engines::Maxwell3D* maxwell3d{};
std::array<u32, Macro::NUM_MACRO_REGISTERS> registers{};
u32 carry_flag{};
};
static_assert(offsetof(JITState, maxwell3d) == 0, "Maxwell3D is not at 0x0");
using ProgramType = void (*)(JITState*, const u32*);
struct OptimizerState {
bool can_skip_carry{};
bool has_delayed_pc{};
bool zero_reg_skip{};
bool skip_dummy_addimmediate{};
bool optimize_for_method_move{};
bool enable_asserts{};
};
OptimizerState optimizer{};
std::optional<Macro::Opcode> next_opcode{};
ProgramType program{nullptr};
std::array<Xbyak::Label, MAX_CODE_SIZE> labels;
std::array<Xbyak::Label, MAX_CODE_SIZE> delay_skip;
Xbyak::Label end_of_code{};
bool is_delay_slot{};
u32 pc{};
std::optional<u32> delayed_pc;
const std::vector<u32>& code;
Engines::Maxwell3D& maxwell3d;
};
} // namespace Tegra
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