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OpcodeDispatcher: rework InsertNZCV

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in prep for rmif.

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
This commit is contained in:
Alyssa Rosenzweig committed 2023-11-09 09:40:51 -04:00
1 parent bdaa70405f
commit 3a03e1c93c
1 file changed
+8 -7
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FEXCore/Source/Interface/Core/OpcodeDispatcher.h
+8 -7
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@@ -1307,18 +1307,19 @@ private:
NZCVDirty = false;
}
OrderedNode *InsertNZCV(OrderedNode *NZCV, unsigned BitOffset, OrderedNode *Value) {
unsigned Bit = IndexNZCV(BitOffset);
void InsertNZCV(unsigned BitOffset, OrderedNode *Value) {
uint32_t SetBits = PossiblySetNZCVBits;
OrderedNode *NZCV = SetBits ? GetNZCV() : nullptr;
unsigned Bit = IndexNZCV(BitOffset);
PossiblySetNZCVBits |= (1u << Bit);
if (SetBits == 0)
return _Lshl(OpSize::i64Bit, Value, _Constant(Bit));
SetNZCV(_Lshl(OpSize::i64Bit, Value, _Constant(Bit)));
else if ((SetBits & (1u << Bit)) == 0)
return _Orlshl(OpSize::i32Bit, NZCV, Value, Bit);
SetNZCV(_Orlshl(OpSize::i32Bit, NZCV, Value, Bit));
else
return _Bfi(OpSize::i32Bit, 1, Bit, NZCV, Value);
SetNZCV(_Bfi(OpSize::i32Bit, 1, Bit, NZCV, Value));
}
void CarryInvert() {
@@ -1345,7 +1346,7 @@ private:
flagsOp = SelectionFlag::Nothing;
if (IsNZCV(BitOffset))
SetNZCV(InsertNZCV(PossiblySetNZCVBits ? GetNZCV() : nullptr, BitOffset, Value));
InsertNZCV(BitOffset, Value);
else
_StoreFlag(Value, BitOffset);
}