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OpcodeDispatcher: use 1-op "src + CF"

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Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
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Alyssa Rosenzweig committed 2024-02-26 15:35:14 -04:00
1 parent 333271d490
commit e76ebeab58
1 file changed
+3 -4
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FEXCore/Source/Interface/Core/OpcodeDispatcher.cpp
+3 -4
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@@ -418,16 +418,15 @@ void OpDispatchBuilder::SBBOp(OpcodeArgs) {
auto Size = GetDstSize(Op);
const auto OpSize = IR::SizeToOpSize(std::max<uint8_t>(4u, Size));
auto CF = GetRFLAG(FEXCore::X86State::RFLAG_CF_RAW_LOC);
auto ALUOp = _Add(OpSize, Src, CF);
OrderedNode *Result{};
OrderedNode *Before{};
if (DestIsLockedMem(Op)) {
HandledLock = true;
OrderedNode *DestMem = LoadSource(GPRClass, Op, Op->Dest, Op->Flags, {.LoadData = false});
DestMem = AppendSegmentOffset(DestMem, Op->Flags);
Before = _AtomicFetchSub(IR::SizeToOpSize(Size), ALUOp, DestMem);
auto SrcPlusCF = _Adc(OpSize, _Constant(0), Src);
Before = _AtomicFetchSub(IR::SizeToOpSize(Size), SrcPlusCF, DestMem);
}
else {
Before = LoadSource(GPRClass, Op, Op->Dest, Op->Flags);