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IR: Add vrot

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This commit is contained in:
Henrik Rydgard 2016-05-14 21:12:32 +02:00
parent 168573e711
commit 7046f960e5
1 changed files with 38 additions and 1 deletions
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39
Core/MIPS/IR/IRCompVFPU.cpp
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@ -1529,7 +1529,44 @@ namespace MIPSComp {
// Very heavily used by FF:CC. Should be replaced by a fast approximation instead of
// calling the math library.
void IRFrontend::Comp_VRot(MIPSOpcode op) {
DISABLE;
CONDITIONAL_DISABLE;
int vd = _VD;
int vs = _VS;
int imm = (op >> 16) & 0x1f;
VectorSize sz = GetVecSize(op);
int n = GetNumVectorElements(sz);
bool negSin = (imm & 0x10) ? true : false;
logBlocks = 1;
char d[4] = { '0', '0', '0', '0' };
if (((imm >> 2) & 3) == (imm & 3)) {
for (int i = 0; i < 4; i++)
d[i] = 's';
}
d[(imm >> 2) & 3] = 's';
d[imm & 3] = 'c';
u8 dregs[4];
GetVectorRegs(dregs, sz, vd);
u8 sreg[1];
GetVectorRegs(sreg, V_Single, vs);
for (int i = 0; i < n; i++) {
switch (d[i]) {
case '0':
ir.Write(IROp::SetConstF, dregs[i], ir.AddConstantFloat(0.0f));
break;
case 's':
ir.Write(IROp::FSin, dregs[i], sreg[0]);
if (negSin) {
ir.Write(IROp::FNeg, dregs[i], dregs[i]);
}
break;
case 'c':
ir.Write(IROp::FCos, dregs[i], sreg[0]);
break;
}
}
}
void IRFrontend::Comp_Vsgn(MIPSOpcode op) {