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Jit64: implement ps_res

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This is probably more accurate than it is allowed to be. After all, the
instructions are supposed to be "estimates".
This commit is contained in:
Tillmann Karras 2013-11-02 16:02:18 +01:00 committed by degasus
parent 0a2a273a2e
commit cdc27e46f1
4 changed files with 24 additions and 13 deletions
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2
Source/Core/Core/Src/PowerPC/Jit64/Jit.h
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@ -178,7 +178,7 @@ public:
void ps_arith(UGeckoInstruction inst); //aggregate
void ps_mergeXX(UGeckoInstruction inst);
void ps_maddXX(UGeckoInstruction inst);
void ps_rsqrte(UGeckoInstruction inst);
void ps_recip(UGeckoInstruction inst);
void ps_sum(UGeckoInstruction inst);
void ps_muls(UGeckoInstruction inst);

4
Source/Core/Core/Src/PowerPC/Jit64/Jit64_Tables.cpp
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@ -138,9 +138,9 @@ static GekkoOPTemplate table4_2[] =
{20, &Jit64::ps_arith}, //"ps_sub", OPTYPE_PS, 0}},
{21, &Jit64::ps_arith}, //"ps_add", OPTYPE_PS, 0}},
{23, &Jit64::ps_sel}, //"ps_sel", OPTYPE_PS, 0}},
{24, &Jit64::Default}, //"ps_res", OPTYPE_PS, 0}},
{24, &Jit64::ps_recip}, //"ps_res", OPTYPE_PS, 0}},
{25, &Jit64::ps_arith}, //"ps_mul", OPTYPE_PS, 0}},
{26, &Jit64::ps_rsqrte}, //"ps_rsqrte", OPTYPE_PS, 0, 1}},
{26, &Jit64::ps_recip}, //"ps_rsqrte", OPTYPE_PS, 0, 1}},
{28, &Jit64::ps_maddXX}, //"ps_msub", OPTYPE_PS, 0}},
{29, &Jit64::ps_maddXX}, //"ps_madd", OPTYPE_PS, 0}},
{30, &Jit64::ps_maddXX}, //"ps_nmsub", OPTYPE_PS, 0}},

10
Source/Core/Core/Src/PowerPC/Jit64/Jit_FloatingPoint.cpp
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@ -8,9 +8,10 @@
#include "JitRegCache.h"
#include "CPUDetect.h"
const u64 GC_ALIGNED16(psSignBits2[2]) = {0x8000000000000000ULL, 0x8000000000000000ULL};
const u64 GC_ALIGNED16(psAbsMask2[2]) = {0x7FFFFFFFFFFFFFFFULL, 0x7FFFFFFFFFFFFFFFULL};
const double GC_ALIGNED16(psOneOne2[2]) = {1.0, 1.0};
static const u64 GC_ALIGNED16(psSignBits2[2]) = {0x8000000000000000ULL, 0x8000000000000000ULL};
static const u64 GC_ALIGNED16(psAbsMask2[2]) = {0x7FFFFFFFFFFFFFFFULL, 0x7FFFFFFFFFFFFFFFULL};
static const double GC_ALIGNED16(psOneOne2[2]) = {1.0, 1.0};
static const double one_const = 1.0f;
void Jit64::fp_tri_op(int d, int a, int b, bool reversible, bool dupe, void (XEmitter::*op)(Gen::X64Reg, Gen::OpArg))
{
@ -59,9 +60,6 @@ void Jit64::fp_tri_op(int d, int a, int b, bool reversible, bool dupe, void (XEm
fpr.UnlockAll();
}
static const double one_const = 1.0f;
void Jit64::fp_arith_s(UGeckoInstruction inst)
{
INSTRUCTION_START

21
Source/Core/Core/Src/PowerPC/Jit64/Jit_Paired.cpp
View File

@ -100,20 +100,33 @@ void Jit64::ps_sign(UGeckoInstruction inst)
fpr.UnlockAll();
}
void Jit64::ps_rsqrte(UGeckoInstruction inst)
// ps_res and ps_rsqrte
void Jit64::ps_recip(UGeckoInstruction inst)
{
INSTRUCTION_START
JITDISABLE(bJITPairedOff)
if (inst.Rc) {
Default(inst); return;
}
OpArg divisor;
int d = inst.FD;
int b = inst.FB;
fpr.Lock(d, b);
fpr.BindToRegister(d, (d == b), true);
SQRTPD(XMM0, fpr.R(b));
fpr.BindToRegister(d, (d == b));
switch (inst.SUBOP5)
{
case 24:
// ps_res
divisor = fpr.R(b);
break;
case 26:
// ps_rsqrte
SQRTPD(XMM0, fpr.R(b));
divisor = R(XMM0);
break;
}
MOVAPD(XMM1, M((void*)&psOneOne));
DIVPD(XMM1, R(XMM0));
DIVPD(XMM1, divisor);
MOVAPD(fpr.R(d), XMM1);
fpr.UnlockAll();
}