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vsel/vsel128

This commit is contained in:
Ben Vanik 2013-10-19 21:20:27 -07:00
parent d62e8aaf78
commit 2cce46c232
1 changed files with 15 additions and 4 deletions
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19
src/xenia/cpu/x64/x64_emit_altivec.cc
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@ -1541,13 +1541,24 @@ XEEMITTER(vrsqrtefp128, VX128_3(6, 1648), VX128_3)(X64Emitter& e, X86Compiler&
return InstrEmit_vrsqrtefp_(e, c, VX128_3_VD128, VX128_3_VB128);
}
int InstrEmit_vsel_(X64Emitter& e, X86Compiler& c, uint32_t vd, uint32_t va, uint32_t vb, uint32_t vc) {
// http://markplusplus.wordpress.com/2007/03/14/fast-sse-select-operation/
XmmVar a(c.newXmmVar());
c.movaps(a, e.vr_value(va));
XmmVar v(c.newXmmVar());
c.movaps(v, e.vr_value(vb));
c.xorps(v, a);
c.andps(v, e.vr_value(vc));
c.xorps(v, a);
e.update_vr_value(vd, v);
e.TraceVR(vd, va, vb, vc);
return 0;
}
XEEMITTER(vsel, 0x1000002A, VXA )(X64Emitter& e, X86Compiler& c, InstrData& i) {
XEINSTRNOTIMPLEMENTED();
return 1;
return InstrEmit_vsel_(e, c, i.VXA.VD, i.VXA.VA, i.VXA.VB, i.VXA.VC);
}
XEEMITTER(vsel128, VX128(5, 848), VX128 )(X64Emitter& e, X86Compiler& c, InstrData& i) {
XEINSTRNOTIMPLEMENTED();
return 1;
return InstrEmit_vsel_(e, c, VX128_VD128, VX128_VA128, VX128_VB128, VX128_VD128);
}
XEEMITTER(vsl, 0x100001C4, VX )(X64Emitter& e, X86Compiler& c, InstrData& i) {