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x86/FPU: Always preserve sign in neg.s

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Stenzek 2023-12-24 21:09:33 +10:00 committed by Connor McLaughlin
parent 8f991c311f
commit 4ffbe0bbf9
1 changed files with 4 additions and 1 deletions
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5
pcsx2/x86/iFPU.cpp
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@ -1669,7 +1669,10 @@ void recNEG_S_xmm(int info)
//xAND(ptr32[&fpuRegs.fprc[31]], ~(FPUflagO|FPUflagU)); // Clear O and U flags //xAND(ptr32[&fpuRegs.fprc[31]], ~(FPUflagO|FPUflagU)); // Clear O and U flags
xXOR.PS(xRegisterSSE(EEREC_D), ptr[&s_neg[0]]); xXOR.PS(xRegisterSSE(EEREC_D), ptr[&s_neg[0]]);
ClampValues(EEREC_D);
// Always preserve sign. Using float clamping here would result in
// +inf to become +fMax instead of -fMax, which is definitely wrong.
fpuFloat3(EEREC_D);
} }
FPURECOMPILE_CONSTCODE(NEG_S, XMMINFO_WRITED | XMMINFO_READS); FPURECOMPILE_CONSTCODE(NEG_S, XMMINFO_WRITED | XMMINFO_READS);