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https://github.com/RetroDECK/Duckstation.git
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67 lines
1.9 KiB
C++
67 lines
1.9 KiB
C++
#pragma once
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#include "cpu_types.h"
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class JitCodeBuffer;
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namespace CPU {
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struct CodeBlockInstruction;
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class Core;
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namespace Recompiler {
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class Thunks
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{
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public:
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union RaiseExceptionInfo
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{
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u32 bits;
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struct
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{
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u8 excode;
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bool BD;
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u8 CE;
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u8 unused;
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};
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};
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static u32 MakeRaiseExceptionInfo(Exception excode, const CodeBlockInstruction& cbi);
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//////////////////////////////////////////////////////////////////////////
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// Trampolines for calling back from the JIT
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// Needed because we can't cast member functions to void*...
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// TODO: Abuse carry flag or something else for exception
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//////////////////////////////////////////////////////////////////////////
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static u64 ReadMemoryByte(Core* cpu, u32 pc, u32 address);
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static u64 ReadMemoryHalfWord(Core* cpu, u32 pc, u32 address);
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static u64 ReadMemoryWord(Core* cpu, u32 pc, u32 address);
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static bool WriteMemoryByte(Core* cpu, u32 pc, u32 address, u8 value);
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static bool WriteMemoryHalfWord(Core* cpu, u32 pc, u32 address, u16 value);
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static bool WriteMemoryWord(Core* cpu, u32 pc, u32 address, u32 value);
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static bool InterpretInstruction(Core* cpu);
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static void UpdateLoadDelay(Core* cpu);
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static void RaiseException(Core* cpu, u32 epc, u32 ri_bits);
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static void RaiseAddressException(Core* cpu, u32 address, bool store, bool branch);
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static void ExecuteGTEInstruction(Core* cpu, u32 instruction_bits);
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static u32 ReadGTERegister(Core* cpu, u32 reg);
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static void WriteGTERegister(Core* cpu, u32 reg, u32 value);
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};
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class ASMFunctions
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{
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public:
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bool (*read_memory_byte)(u32 address, u8* value);
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bool (*read_memory_word)(u32 address, u16* value);
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bool (*read_memory_dword)(u32 address, u32* value);
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void (*write_memory_byte)(u32 address, u8 value);
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void (*write_memory_word)(u32 address, u16 value);
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void (*write_memory_dword)(u32 address, u32 value);
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void Generate(JitCodeBuffer* code_buffer);
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};
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} // namespace Recompiler
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} // namespace CPU
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