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JIT: add fselx implementation 

Based on a patch by Tilka.
This commit is contained in:
Fiora 2014-09-15 08:33:02 -07:00
parent 7ab820c6f8
commit 764ce4b513
3 changed files with 35 additions and 1 deletions
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1
Source/Core/Core/PowerPC/Jit64/Jit.h
View File

@ -206,6 +206,7 @@ public:
void fmaddXX(UGeckoInstruction inst);
void fsign(UGeckoInstruction inst);
void fselx(UGeckoInstruction inst);
void stX(UGeckoInstruction inst); //stw sth stb
void rlwinmx(UGeckoInstruction inst);
void rlwimix(UGeckoInstruction inst);

2
Source/Core/Core/PowerPC/Jit64/Jit64_Tables.cpp
View File

@ -358,7 +358,7 @@ static GekkoOPTemplate table63_2[] =
{20, &Jit64::fp_arith}, //"fsubx", OPTYPE_FPU, FL_RC_BIT_F}},
{21, &Jit64::fp_arith}, //"faddx", OPTYPE_FPU, FL_RC_BIT_F}},
{22, &Jit64::FallBackToInterpreter}, //"fsqrtx", OPTYPE_FPU, FL_RC_BIT_F}},
{23, &Jit64::FallBackToInterpreter}, //"fselx", OPTYPE_FPU, FL_RC_BIT_F}},
{23, &Jit64::fselx}, //"fselx", OPTYPE_FPU, FL_RC_BIT_F}},
{25, &Jit64::fp_arith}, //"fmulx", OPTYPE_FPU, FL_RC_BIT_F}},
{26, &Jit64::frsqrtex}, //"frsqrtex", OPTYPE_FPU, FL_RC_BIT_F}},
{28, &Jit64::fmaddXX}, //"fmsubx", OPTYPE_FPU, FL_RC_BIT_F}},

33
Source/Core/Core/PowerPC/Jit64/Jit_FloatingPoint.cpp
View File

@ -200,6 +200,39 @@ void Jit64::fsign(UGeckoInstruction inst)
fpr.UnlockAll();
}
void Jit64::fselx(UGeckoInstruction inst)
{
INSTRUCTION_START
JITDISABLE(bJITFloatingPointOff);
FALLBACK_IF(inst.Rc);
int d = inst.FD;
int a = inst.FA;
int b = inst.FB;
int c = inst.FC;
fpr.Lock(a, b, c, d);
MOVSD(XMM0, fpr.R(a));
PXOR(XMM1, R(XMM1));
// XMM0 = XMM0 < 0 ? all 1s : all 0s
CMPSD(XMM0, R(XMM1), LT);
if (cpu_info.bSSE4_1)
{
MOVSD(XMM1, fpr.R(c));
BLENDVPD(XMM1, fpr.R(b));
}
else
{
MOVSD(XMM1, R(XMM0));
PAND(XMM0, fpr.R(b));
PANDN(XMM1, fpr.R(c));
POR(XMM1, R(XMM0));
}
fpr.BindToRegister(d, false);
MOVSD(fpr.RX(d), R(XMM1));
fpr.UnlockAll();
}
void Jit64::fmrx(UGeckoInstruction inst)
{
INSTRUCTION_START