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vspltb

This commit is contained in:
Ben Vanik 2013-10-14 18:21:26 -07:00
parent 5bed1069f8
commit 1eba1fb5c2
1 changed files with 17 additions and 2 deletions
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19
src/xenia/cpu/x64/x64_emit_altivec.cc
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@ -1701,8 +1701,23 @@ XEEMITTER(vslo128, VX128(5, 912), VX128 )(X64Emitter& e, X86Compiler&
}
XEEMITTER(vspltb, 0x1000020C, VX )(X64Emitter& e, X86Compiler& c, InstrData& i) {
XEINSTRNOTIMPLEMENTED();
return 1;
// b <- UIMM*8
// do i = 0 to 127 by 8
// (VD)[i:i+7] <- (VB)[b:b+7]
XmmVar v(c.newXmmVar());
c.movaps(v, e.vr_value(i.VX.VB));
uint32_t uimm = SWAP_INLINE(i.VX.VA & 0xF);
GpVar sel(c.newGpVar());
c.mov(sel, imm(uimm));
XmmVar sel_v(c.newXmmVar());
c.movd(sel_v, sel.r32());
XmmVar z(c.newXmmVar());
c.xorps(z, z);
c.pshufb(sel_v, z);
c.pshufb(v, sel_v);
e.update_vr_value(i.VX.VD, v);
e.TraceVR(i.VX.VD);
return 0;
}
XEEMITTER(vsplth, 0x1000024C, VX )(X64Emitter& e, X86Compiler& c, InstrData& i) {