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SPU: Minor FREST bugfix

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Eladash 2020-01-21 14:55:07 +02:00 • committed by Ivan
parent f05a3da964
commit 160ddcf86b
2 changed files with 5 additions and 9 deletions
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12
rpcs3/Emu/Cell/SPUInterpreter.cpp
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@ -1908,20 +1908,16 @@ bool spu_interpreter_precise::FREST(spu_thread& spu, spu_opcode_t op)
for (int i = 0; i < 4; i++) for (int i = 0; i < 4; i++)
{ {
const auto a = ra._f[i]; const auto a = ra._f[i];
switch (fexpf(a)) const int exp = fexpf(a);
{
case 0: if (exp == 0)
{ {
spu.fpscr.setDivideByZeroFlag(i); spu.fpscr.setDivideByZeroFlag(i);
res._f[i] = extended(std::signbit(a), 0x7FFFFF); res._f[i] = extended(std::signbit(a), 0x7FFFFF);
break;
} }
case (0x7e800000 >> 23): // Special case for value not handled properly in rcpps else if (exp >= (0x7e800000 >> 23)) // Special case for values not handled properly in rcpps
{ {
res._f[i] = 0.0f; res._f[i] = 0.0f;
break;
}
default: break;
} }
} }

2
rpcs3/Emu/Cell/SPURecompiler.cpp
View file

@ -7225,7 +7225,7 @@ public:
{ {
const auto a = get_vr<f32[4]>(op.ra); const auto a = get_vr<f32[4]>(op.ra);
const auto mask_ov = sext<s32[4]>(bitcast<s32[4]>(fabs(a)) > splat<s32[4]>(0x7e7fffff)); const auto mask_ov = sext<s32[4]>(bitcast<s32[4]>(fabs(a)) > splat<s32[4]>(0x7e7fffff));
const auto mask_de = eval(noncast<u32[4]>(sext<s32[4]>(fcmp_uno(a == fsplat<f32[4]>(0.)))) >> 1); const auto mask_de = eval(noncast<u32[4]>(sext<s32[4]>(fcmp_ord(a == fsplat<f32[4]>(0.)))) >> 1);
set_vr(op.rt, (bitcast<s32[4]>(fre(a)) & ~mask_ov) | noncast<s32[4]>(mask_de)); set_vr(op.rt, (bitcast<s32[4]>(fre(a)) & ~mask_ov) | noncast<s32[4]>(mask_de));
} }
else else