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Make applying prefixes mostly automatic.

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And implement (hopefully) D prefixes.
This commit is contained in:
Unknown W. Brackets 2013-02-17 23:15:16 -08:00
parent 18c03d0816
commit 8ea59990ab
2 changed files with 45 additions and 19 deletions
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51
Core/MIPS/x86/CompVFPU.cpp
View File

@ -122,21 +122,42 @@ void Jit::ApplyPrefixST(u8 *vregs, u32 prefix, VectorSize sz) {
}
}
void Jit::ApplyPrefixD(const u8 *vregs, u32 prefix, VectorSize sz, bool onlyWriteMask) {
void Jit::GetVectorRegsPrefixD(u8 *regs, VectorSize sz, int vectorReg) {
_assert_(js.prefixDFlag & JitState::PREFIX_KNOWN);
if (!prefix || onlyWriteMask) return;
GetVectorRegs(regs, sz, vectorReg);
if (js.prefixD == 0)
return;
int n = GetNumVectorElements(sz);
for (int i = 0; i < n; i++)
{
int sat = (prefix >> (i * 2)) & 3;
// Hopefully this is rare, we'll just write it into a reg we drop.
if (js.VfpuWriteMask(i))
regs[i] = fpr.GetTempV();
}
}
void Jit::ApplyPrefixD(const u8 *vregs, VectorSize sz) {
_assert_(js.prefixDFlag & JitState::PREFIX_KNOWN);
if (!js.prefixD) return;
int n = GetNumVectorElements(sz);
for (int i = 0; i < n; i++)
{
if (js.VfpuWriteMask(i))
continue;
int sat = (js.prefixD >> (i * 2)) & 3;
if (sat == 1)
{
fpr.MapRegV(vregs[i], MAP_DIRTY);
MAXSS(fpr.VX(vregs[i]), M((void *)&zero));
MINSS(fpr.VX(vregs[i]), M((void *)&one));
}
else if (sat == 3)
{
fpr.MapRegV(vregs[i], MAP_DIRTY);
MAXSS(fpr.VX(vregs[i]), M((void *)&minus_one));
MINSS(fpr.VX(vregs[i]), M((void *)&one));
}
@ -322,12 +343,7 @@ void Jit::Comp_VDot(u32 op) {
return;
}
// No-op.
if (js.VfpuWriteMask(0)) {
return;
}
// WARNING: No prefix support!
// WARNING: No prefix support! (maybe soon)
if (js.MayHavePrefix()) {
Comp_Generic(op);
return;
@ -340,11 +356,9 @@ void Jit::Comp_VDot(u32 op) {
// TODO: Force read one of them into regs? probably not.
u8 sregs[4], tregs[4], dregs[1];
GetVectorRegs(sregs, sz, vs);
GetVectorRegs(tregs, sz, vt);
GetVectorRegs(dregs, V_Single, vd);
// TODO: applyprefixST here somehow (shuffle, etc...)
GetVectorRegsPrefixS(sregs, sz, vs);
GetVectorRegsPrefixT(tregs, sz, vt);
GetVectorRegsPrefixD(dregs, V_Single, vd);
int n = GetNumVectorElements(sz);
X64Reg tempxreg = XMM0;
@ -370,7 +384,7 @@ void Jit::Comp_VDot(u32 op) {
MOVSS(fpr.V(dregs[0]), tempxreg);
}
// TODO: applyprefixD here somehow (write mask etc..)
ApplyPrefixD(dregs, V_Single);
fpr.ReleaseSpillLocks();
}
@ -440,9 +454,10 @@ void Jit::Comp_VecDo3(u32 op) {
tempxregs[i] = (X64Reg) (XMM0 + i);
else
{
fpr.BindToRegister(TEMP0 + i, false, true);
fpr.SpillLock(TEMP0 + i);
tempxregs[i] = fpr.RX(TEMP0 + i);
int reg = fpr.GetTempV();
fpr.MapRegV(reg, MAP_NOINIT | MAP_DIRTY);
fpr.SpillLockV(reg);
tempxregs[i] = fpr.VX(reg);
}
}
else

13
Core/MIPS/x86/Jit.h
View File

@ -184,7 +184,18 @@ public:
void Comp_DoNothing(u32 op);
void ApplyPrefixST(u8 *vregs, u32 prefix, VectorSize sz);
void ApplyPrefixD(const u8 *vregs, u32 prefix, VectorSize sz, bool onlyWriteMask = false);
void ApplyPrefixD(const u8 *vregs, VectorSize sz);
void GetVectorRegsPrefixS(u8 *regs, VectorSize sz, int vectorReg) {
_assert_(js.prefixSFlag & JitState::PREFIX_KNOWN);
GetVectorRegs(regs, sz, vectorReg);
ApplyPrefixST(regs, js.prefixS, sz);
}
void GetVectorRegsPrefixT(u8 *regs, VectorSize sz, int vectorReg) {
_assert_(js.prefixTFlag & JitState::PREFIX_KNOWN);
GetVectorRegs(regs, sz, vectorReg);
ApplyPrefixST(regs, js.prefixT, sz);
}
void GetVectorRegsPrefixD(u8 *regs, VectorSize sz, int vectorReg);
void EatPrefix() { js.EatPrefix(); }
JitBlockCache *GetBlockCache() { return &blocks; }