Duckstation/src/core/cpu_recompiler_thunks.h

// SPDX-FileCopyrightText: 2019-2023 Connor McLaughlin <stenzek@gmail.com>
// SPDX-License-Identifier: (GPL-3.0 OR CC-BY-NC-ND-4.0)

#pragma once
#include "cpu_code_cache.h"
#include "cpu_types.h"

namespace CPU::Recompiler::Thunks {

//////////////////////////////////////////////////////////////////////////
// Trampolines for calling back from the JIT
// Needed because we can't cast member functions to void*...
// TODO: Abuse carry flag or something else for exception
//////////////////////////////////////////////////////////////////////////
bool InterpretInstruction();
bool InterpretInstructionPGXP();

// Memory access functions for the JIT - MSB is set on exception.
u64 ReadMemoryByte(u32 address);
u64 ReadMemoryHalfWord(u32 address);
u64 ReadMemoryWord(u32 address);
u32 WriteMemoryByte(u32 address, u32 value);
u32 WriteMemoryHalfWord(u32 address, u32 value);
u32 WriteMemoryWord(u32 address, u32 value);

// Unchecked memory access variants. No alignment or bus exceptions.
u32 UncheckedReadMemoryByte(u32 address);
u32 UncheckedReadMemoryHalfWord(u32 address);
u32 UncheckedReadMemoryWord(u32 address);
void UncheckedWriteMemoryByte(u32 address, u32 value);
void UncheckedWriteMemoryHalfWord(u32 address, u32 value);
void UncheckedWriteMemoryWord(u32 address, u32 value);

} // namespace CPU::Recompiler::Thunks