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OpcodeDispatcher: use real branch for rep cmps

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Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
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Alyssa Rosenzweig committed 2024-02-28 10:35:12 -04:00
1 parent edd6becc56
commit 4f4e38ace2
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FEXCore/Source/Interface/Core/OpcodeDispatcher.cpp
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@@ -3785,9 +3785,8 @@ void OpDispatchBuilder::CMPSOp(OpcodeArgs) {
Dest_RSI = _Add(OpSize::i64Bit, Dest_RSI, PtrDir);
StoreGPRRegister(X86State::REG_RSI, Dest_RSI);
OrderedNode *ZF = GetRFLAG(FEXCore::X86State::RFLAG_ZF_RAW_LOC);
CalculateDeferredFlags();
InternalCondJump = CondJump(ZF, {REPE ? COND_NEQ : COND_EQ});
InternalCondJump = CondJumpNZCV({REPE ? COND_EQ : COND_NEQ});
// Jump back to the start if we have more work to do
SetTrueJumpTarget(InternalCondJump, LoopStart);