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[JIT] Full support for vcfux

This commit is contained in:
DrChat 2018-03-02 15:11:29 -06:00
parent b0b920c040
commit fd0d2185ef
1 changed files with 15 additions and 7 deletions
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22
src/xenia/cpu/backend/x64/x64_sequences.cc
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@ -1581,15 +1581,23 @@ struct VECTOR_CONVERT_I2F
I<OPCODE_VECTOR_CONVERT_I2F, V128Op, V128Op>> {
static void Emit(X64Emitter& e, const EmitArgType& i) {
// flags = ARITHMETIC_UNSIGNED
// TODO(benvanik): are these really the same? VC++ thinks so.
Xmm src1;
if (i.src1.is_constant) {
e.LoadConstantXmm(e.xmm0, i.src1.constant());
src1 = e.xmm0;
if (i.instr->flags & ARITHMETIC_UNSIGNED) {
// xmm0 = mask of positive values
e.vpcmpgtd(e.xmm0, i.src1, e.GetXmmConstPtr(XMMFFFF));
// scale any values >= (unsigned)INT_MIN back to [0, INT_MAX]
e.vpsubd(e.xmm1, i.src1, e.GetXmmConstPtr(XMMSignMaskI32));
e.vblendvps(e.xmm1, e.xmm1, i.src1, e.xmm0);
// xmm1 = [0, INT_MAX]
e.vcvtdq2ps(i.dest, e.xmm1);
// scale values back above [INT_MIN, UINT_MAX]
e.vpandn(e.xmm0, e.xmm0, e.GetXmmConstPtr(XMMPosIntMinPS));
e.vaddps(i.dest, i.dest, e.xmm0);
} else {
src1 = i.src1;
e.vcvtdq2ps(i.dest, i.src1);
}
e.vcvtdq2ps(i.dest, src1);
}
};
EMITTER_OPCODE_TABLE(OPCODE_VECTOR_CONVERT_I2F, VECTOR_CONVERT_I2F);