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x86jit: Implement vfad and vavg.

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This commit is contained in:
Unknown W. Brackets 2014-11-08 09:39:55 -08:00
parent 7d54622e2c
commit ddc90ee550
1 changed files with 38 additions and 3 deletions
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41
Core/MIPS/x86/CompVFPU.cpp
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@ -2226,16 +2226,51 @@ void Jit::Comp_Vi2x(MIPSOpcode op) {
DISABLE;
}
void Jit::Comp_Vhoriz(MIPSOpcode op) {
DISABLE;
static const float MEMORY_ALIGNED16( vavg_table[4] ) = {1.0f, 1.0f / 2.0f, 1.0f / 3.0f, 1.0f / 4.0f};
void Jit::Comp_Vhoriz(MIPSOpcode op) {
CONDITIONAL_DISABLE;
if (js.HasUnknownPrefix())
DISABLE;
VectorSize sz = GetVecSize(op);
int n = GetNumVectorElements(sz);
u8 sregs[4], dregs[1];
GetVectorRegsPrefixS(sregs, sz, _VS);
GetVectorRegsPrefixD(dregs, V_Single, _VD);
X64Reg reg = XMM0;
if (IsOverlapSafeAllowS(dregs[0], 0, n, sregs)) {
fpr.MapRegV(dregs[0], (dregs[0] == sregs[0] ? 0 : MAP_NOINIT) | MAP_DIRTY);
fpr.SpillLockV(dregs[0]);
reg = fpr.VX(dregs[0]);
}
// We use a temp reg in case of overlap.
if (!fpr.V(sregs[0]).IsSimpleReg(reg)) {
MOVSS(reg, fpr.V(sregs[0]));
}
for (int i = 1; i < n; ++i) {
ADDSS(reg, fpr.V(sregs[i]));
}
// Do any games use these a noticable amount?
switch ((op >> 16) & 31) {
case 6: // vfad
break;
case 7: // vavg
MOVSS(XMM1, M(&vavg_table[n]));
MULSS(reg, R(XMM1));
break;
}
if (reg == XMM0) {
MOVSS(fpr.V(dregs[0]), XMM0);
}
ApplyPrefixD(dregs, V_Single);
fpr.ReleaseSpillLocks();
}
void Jit::Comp_Viim(MIPSOpcode op) {