diff options
Diffstat (limited to 'Source/Core')
| -rw-r--r-- | Source/Core/Core/PowerPC/JitArm64/Jit.h | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/Source/Core/Core/PowerPC/JitArm64/Jit.h b/Source/Core/Core/PowerPC/JitArm64/Jit.h index 3ef1955e37..e979e3a0cc 100644 --- a/Source/Core/Core/PowerPC/JitArm64/Jit.h +++ b/Source/Core/Core/PowerPC/JitArm64/Jit.h @@ -215,10 +215,29 @@ protected: // Dump a memory range of code void DumpCode(const u8* start, const u8* end); - // Backpatching routines + // This is the core routine for accessing emulated memory, with support for + // many different kinds of loads and stores as well as fastmem backpatching. + // + // Registers used: + // addr scratch + // Store: X1 X0 + // Load: X0 + // Zero 256: X0 X30 + // Store float: X1 Q0 + // Load float: X0 + // + // If fastmem && !do_farcode, the addr argument can be any register. + // Otherwise it must be the register listed in the table above. + // + // Additional scratch registers are used in the following situations: + // fastmem && do_farcode && emitting_routine: X2 + // fastmem && do_farcode && emitting_routine && (flags & BackPatchInfo::FLAG_STORE): X0 + // fastmem && do_farcode && emitting_routine && !(flags & BackPatchInfo::FLAG_STORE): X3 + // !fastmem || do_farcode: X30 (plus lots more unless you set gprs_to_push and fprs_to_push) void EmitBackpatchRoutine(u32 flags, bool fastmem, bool do_farcode, Arm64Gen::ARM64Reg RS, Arm64Gen::ARM64Reg addr, BitSet32 gprs_to_push = BitSet32(0), BitSet32 fprs_to_push = BitSet32(0), bool emitting_routine = false); + // Loadstore routines void SafeLoadToReg(u32 dest, s32 addr, s32 offsetReg, u32 flags, s32 offset, bool update); void SafeStoreFromReg(s32 dest, u32 value, s32 regOffset, u32 flags, s32 offset, bool update); |