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OpcodeDispatcher: rmif mask for OF in rcr smaller

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Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
This commit is contained in:
Alyssa Rosenzweig 2024-01-24 22:12:23 -04:00
parent be8d37ef3d
commit ad5c3cb268
1 changed files with 2 additions and 2 deletions
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4
FEXCore/Source/Interface/Core/OpcodeDispatcher.cpp
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@ -2612,8 +2612,8 @@ void OpDispatchBuilder::RCRSmallerOp(OpcodeArgs) {
// OF is the top two MSBs XOR'd together // OF is the top two MSBs XOR'd together
// Only when Shift == 1, it is undefined otherwise // Only when Shift == 1, it is undefined otherwise
if (!IsSrcConst || SrcConst == 1) { if (!IsSrcConst || SrcConst == 1) {
auto NewOF = _Xor(IR::SizeToOpSize(std::max<uint8_t>(4u, GetOpSize(Res))), _Bfe(OpSize::i64Bit, 1, Size - 1, Res), _Bfe(OpSize::i64Bit, 1, Size - 2, Res)); auto NewOF = _XorShift(IR::SizeToOpSize(std::max<uint8_t>(4u, GetOpSize(Res))), Res, Res, ShiftType::LSR, 1);
SetRFLAG<FEXCore::X86State::RFLAG_OF_RAW_LOC>(NewOF); SetRFLAG<FEXCore::X86State::RFLAG_OF_RAW_LOC>(NewOF, Size - 2, true);
} }
}); });
} }