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Interpreter: Accurate CLIP

This commit is contained in:
TellowKrinkle 2025-02-17 23:26:28 -06:00 committed by refractionpcsx2
parent 0539c177ab
commit aaf156478e
1 changed files with 11 additions and 7 deletions
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18
pcsx2/VUops.cpp
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@ -910,15 +910,19 @@ static __fi void _vuITOF15(VURegs* VU) { applyUnaryFunction<intToFloat<15>>(VU);
static __fi void _vuCLIP(VURegs* VU)
{
float value = fabs(vuDouble(VU->VF[_Ft_].i.w));
s32 value = VU->VF[_Ft_].i.w;
// If denormal, set to the highest possible denormal value so only non-denormals compare higher
value = (value & 0x7f800000) ? value & 0x7fffffff : 0x007fffff;
const u32 pos = 0x00000000;
const u32 neg = 0x80000000;
VU->clipflag <<= 6;
if ( vuDouble(VU->VF[_Fs_].i.x) > +value ) VU->clipflag|= 0x01;
if ( vuDouble(VU->VF[_Fs_].i.x) < -value ) VU->clipflag|= 0x02;
if ( vuDouble(VU->VF[_Fs_].i.y) > +value ) VU->clipflag|= 0x04;
if ( vuDouble(VU->VF[_Fs_].i.y) < -value ) VU->clipflag|= 0x08;
if ( vuDouble(VU->VF[_Fs_].i.z) > +value ) VU->clipflag|= 0x10;
if ( vuDouble(VU->VF[_Fs_].i.z) < -value ) VU->clipflag|= 0x20;
if (static_cast<s32>(VU->VF[_Fs_].i.x ^ pos) > value) VU->clipflag |= 0x01;
if (static_cast<s32>(VU->VF[_Fs_].i.x ^ neg) > value) VU->clipflag |= 0x02;
if (static_cast<s32>(VU->VF[_Fs_].i.y ^ pos) > value) VU->clipflag |= 0x04;
if (static_cast<s32>(VU->VF[_Fs_].i.y ^ neg) > value) VU->clipflag |= 0x08;
if (static_cast<s32>(VU->VF[_Fs_].i.z ^ pos) > value) VU->clipflag |= 0x10;
if (static_cast<s32>(VU->VF[_Fs_].i.z ^ neg) > value) VU->clipflag |= 0x20;
VU->clipflag = VU->clipflag & 0xFFFFFF;
}