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OpcodeDispatcher: simplify AAM

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in the area.

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
This commit is contained in:
Alyssa Rosenzweig 2024-03-25 17:10:34 -04:00
parent 86b5a2f352
commit e26481e3cc
1 changed files with 4 additions and 7 deletions
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11
FEXCore/Source/Interface/Core/OpcodeDispatcher.cpp
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@ -3272,14 +3272,11 @@ void OpDispatchBuilder::AAMOp(OpcodeArgs) {
auto Imm8 = _Constant(Op->Src[0].Data.Literal.Value & 0xFF);
auto UDivOp = _UDiv(OpSize::i64Bit, AL, Imm8);
auto URemOp = _URem(OpSize::i64Bit, AL, Imm8);
auto AH = _Lshl(OpSize::i64Bit, UDivOp, _Constant(8));
auto AX = _Add(OpSize::i64Bit, AH, URemOp);
StoreGPRRegister(X86State::REG_RAX, AX, 2);
auto Res = _AddShift(OpSize::i64Bit, URemOp, UDivOp, ShiftType::LSL, 8);
StoreGPRRegister(X86State::REG_RAX, Res, 2);
// Update Flags
AL = LoadGPRRegister(X86State::REG_RAX, 1);
SetNZ_ZeroCV(1, AL);
CalculatePF(AL);
SetNZ_ZeroCV(1, Res);
CalculatePF(Res);
_InvalidateFlags(1u << X86State::RFLAG_AF_RAW_LOC);
}