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CPU/Recompiler: Make generated code invariant to virtual PC

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This commit is contained in:
Connor McLaughlin
2020-08-08 15:15:56 +10:00
parent 8d4216068a
commit f6e88353eb
13 changed files with 258 additions and 213 deletions
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36
src/core/cpu_recompiler_thunks.h
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@ -7,44 +7,20 @@ struct CodeBlockInstruction;
namespace Recompiler::Thunks {
union RaiseExceptionInfo
{
u32 bits;
struct
{
u8 excode;
bool BD;
u8 CE;
u8 unused;
};
};
ALWAYS_INLINE u32 MakeRaiseExceptionInfo(Exception excode, const CodeBlockInstruction& cbi)
{
RaiseExceptionInfo ri = {};
ri.excode = static_cast<u8>(excode);
ri.BD = cbi.is_branch_delay_slot;
ri.CE = cbi.instruction.cop.cop_n;
return ri.bits;
}
//////////////////////////////////////////////////////////////////////////
// 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();
void RaiseException(u32 epc, u32 ri_bits);
void RaiseAddressException(u32 address, bool store, bool branch);
// Memory access functions for the JIT - MSB is set on exception.
u64 ReadMemoryByte(u32 pc, u32 address);
u64 ReadMemoryHalfWord(u32 pc, u32 address);
u64 ReadMemoryWord(u32 pc, u32 address);
bool WriteMemoryByte(u32 pc, u32 address, u8 value);
bool WriteMemoryHalfWord(u32 pc, u32 address, u16 value);
bool WriteMemoryWord(u32 pc, u32 address, u32 value);
u64 ReadMemoryByte(u32 address);
u64 ReadMemoryHalfWord(u32 address);
u64 ReadMemoryWord(u32 address);
u32 WriteMemoryByte(u32 address, u8 value);
u32 WriteMemoryHalfWord(u32 address, u16 value);
u32 WriteMemoryWord(u32 address, u32 value);
} // namespace Recompiler::Thunks