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OpcodeDispatcher: use transformed DF for memset/memcpy

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Use the 1/-1 representation instead of 0/1. This will be better by the end of
the series.

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
This commit is contained in:
Alyssa Rosenzweig committed 2024-03-11 18:50:31 -04:00
1 parent aee00f524c
commit e3ee65e491
3 files changed
+13 -14
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FEXCore/Source/Interface/Core/OpcodeDispatcher.cpp
+3 -4
View File
@@ -3651,9 +3651,8 @@ void OpDispatchBuilder::STOSOp(OpcodeArgs) {
auto Segment = GetSegment(0, FEXCore::X86Tables::DecodeFlags::FLAG_ES_PREFIX, true);
OrderedNode *Counter = LoadGPRRegister(X86State::REG_RCX);
auto DF = GetRFLAG(FEXCore::X86State::RFLAG_DF_LOC);
auto Result = _MemSet(CTX->IsAtomicTSOEnabled(), Size, Segment ?: InvalidNode, Dest, Src, Counter, DF);
auto Result = _MemSet(CTX->IsAtomicTSOEnabled(), Size, Segment ?: InvalidNode, Dest, Src, Counter, LoadDir(1));
StoreGPRRegister(X86State::REG_RCX, _Constant(0));
StoreGPRRegister(X86State::REG_RDI, Result);
}
@@ -3677,11 +3676,11 @@ void OpDispatchBuilder::MOVSOp(OpcodeArgs) {
auto DstSegment = GetSegment(0, FEXCore::X86Tables::DecodeFlags::FLAG_ES_PREFIX, true);
auto SrcSegment = GetSegment(Op->Flags, FEXCore::X86Tables::DecodeFlags::FLAG_DS_PREFIX);
auto DF = GetRFLAG(FEXCore::X86State::RFLAG_DF_LOC);
auto Result = _MemCpy(CTX->IsAtomicTSOEnabled(), Size,
DstSegment ?: InvalidNode,
SrcSegment ?: InvalidNode,
DstAddr, SrcAddr, Counter, DF);
DstAddr, SrcAddr, Counter,
LoadDir(1));
OrderedNode *Result_Dst = _ExtractElementPair(OpSize::i64Bit, Result, 0);
OrderedNode *Result_Src = _ExtractElementPair(OpSize::i64Bit, Result, 1);