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fmadd, orc, extsh, extsw.

This commit is contained in:
Ben Vanik 2013-05-31 01:00:00 -07:00
parent 9bb36c7404
commit e6195c4086
2 changed files with 74 additions and 8 deletions
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59
src/xenia/cpu/x64/x64_emit_alu.cc
View File

@ -870,13 +870,46 @@ XEEMITTER(extsbx, 0x7C000774, X )(X64Emitter& e, X86Compiler& c, InstrDat
}
XEEMITTER(extshx, 0x7C000734, X )(X64Emitter& e, X86Compiler& c, InstrData& i) {
XEINSTRNOTIMPLEMENTED();
return 1;
// s <- (RS)[48]
// RA[48:63] <- (RS)[48:63]
// RA[0:47] <- 48.s
// TODO(benvanik): see if there's a faster way to do this.
GpVar v(c.newGpVar());
c.mov(v, e.gpr_value(i.X.RT));
c.cwde(v);
c.cdqe(v);
e.update_gpr_value(i.X.RA, v);
if (i.X.Rc) {
// Update cr0.
e.update_cr_with_cond(0, v);
}
e.clear_constant_gpr_value(i.X.RA);
return 0;
}
XEEMITTER(extswx, 0x7C0007B4, X )(X64Emitter& e, X86Compiler& c, InstrData& i) {
XEINSTRNOTIMPLEMENTED();
return 1;
// s <- (RS)[32]
// RA[32:63] <- (RS)[32:63]
// RA[0:31] <- i32.s
// TODO(benvanik): see if there's a faster way to do this.
GpVar v(c.newGpVar());
c.mov(v, e.gpr_value(i.X.RT));
c.cdqe(v);
e.update_gpr_value(i.X.RA, v);
if (i.X.Rc) {
// Update cr0.
e.update_cr_with_cond(0, v);
}
e.clear_constant_gpr_value(i.X.RA);
return 0;
}
XEEMITTER(nandx, 0x7C0003B8, X )(X64Emitter& e, X86Compiler& c, InstrData& i) {
@ -926,8 +959,22 @@ XEEMITTER(orx, 0x7C000378, X )(X64Emitter& e, X86Compiler& c, InstrDat
}
XEEMITTER(orcx, 0x7C000338, X )(X64Emitter& e, X86Compiler& c, InstrData& i) {
XEINSTRNOTIMPLEMENTED();
return 1;
// RA <- (RS) | ¬(RB)
GpVar v(c.newGpVar());
c.mov(v, e.gpr_value(i.X.RB));
c.not_(v);
c.or_(v, e.gpr_value(i.X.RT));
e.update_gpr_value(i.X.RA, v);
if (i.X.Rc) {
// With cr0 update.
e.update_cr_with_cond(0, v);
}
e.clear_constant_gpr_value(i.X.RA);
return 0;
}
XEEMITTER(ori, 0x60000000, D )(X64Emitter& e, X86Compiler& c, InstrData& i) {

23
src/xenia/cpu/x64/x64_emit_fpu.cc
View File

@ -290,8 +290,27 @@ XEEMITTER(fsqrtsx, 0xEC00002C, A )(X64Emitter& e, X86Compiler& c, InstrDat
// Floating-point multiply-add (A-9)
XEEMITTER(fmaddx, 0xFC00003A, A )(X64Emitter& e, X86Compiler& c, InstrData& i) {
XEINSTRNOTIMPLEMENTED();
return 1;
// frD <- (frA x frC) + frB
XmmVar v(c.newXmmVar());
// TODO(benvanik): I'm sure there's an SSE op for this.
// NOTE: we do (frB - [frA x frC]) as that's pretty much the same.
c.movq(v, e.fpr_value(i.A.FRA));
c.mulsd(v, e.fpr_value(i.A.FRC));
c.addsd(v, e.fpr_value(i.A.FRB));
e.update_fpr_value(i.A.FRT, v);
// TODO(benvanik): update status/control register.
if (i.A.Rc) {
// With cr0 update.
XEASSERTALWAYS();
//e.update_cr_with_cond(0, v);
XEINSTRNOTIMPLEMENTED();
return 1;
}
return 0;
}
XEEMITTER(fmaddsx, 0xEC00003A, A )(X64Emitter& e, X86Compiler& c, InstrData& i) {