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Improve Compile_Special_SLT 

It is supposed to skip if rd = 0, not rt. Also optimized the code a bit.
This commit is contained in:
LegendOfDragoon 2016-08-23 12:12:55 -07:00
parent c29bff4353
commit 400c466278
1 changed files with 8 additions and 8 deletions
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16
Source/RSP/Recompiler Ops.c
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@ -1498,26 +1498,26 @@ void Compile_Special_SLT ( void ) {
#endif
CPU_Message(" %X %s",CompilePC,RSPOpcodeName(RSPOpC.Hex,CompilePC));
if (RSPOpC.rt == 0) { return; }
if (RSPOpC.rd == 0) { return; }
if (RSPOpC.rt == RSPOpC.rs) {
MoveConstToVariable(0, &RSP_GPR[RSPOpC.rd].UW, GPR_Name(RSPOpC.rd));
} else {
XorX86RegToX86Reg(x86_EBX, x86_EBX);
if (RSPOpC.rs == 0) {
MoveVariableToX86reg(&RSP_GPR[RSPOpC.rt].UW, GPR_Name(RSPOpC.rt), x86_EAX);
XorX86RegToX86Reg(x86_ECX, x86_ECX);
CompConstToX86reg(x86_EAX, 0);
Setg(x86_EBX);
Setg(x86_ECX);
} else if (RSPOpC.rt == 0) {
MoveVariableToX86reg(&RSP_GPR[RSPOpC.rs].UW, GPR_Name(RSPOpC.rs), x86_EAX);
CompConstToX86reg(x86_EAX, 0);
Setl(x86_EBX);
MoveVariableToX86reg(&RSP_GPR[RSPOpC.rs].UW, GPR_Name(RSPOpC.rs), x86_ECX);
ShiftRightUnsignImmed(x86_ECX, 31);
} else {
MoveVariableToX86reg(&RSP_GPR[RSPOpC.rs].UW, GPR_Name(RSPOpC.rs), x86_EAX);
XorX86RegToX86Reg(x86_ECX, x86_ECX);
CompX86regToVariable(x86_EAX, &RSP_GPR[RSPOpC.rt].UW, GPR_Name(RSPOpC.rt));
Setl(x86_EBX);
Setl(x86_ECX);
}
MoveX86regToVariable(x86_EBX, &RSP_GPR[RSPOpC.rd].UW, GPR_Name(RSPOpC.rd));
MoveX86regToVariable(x86_ECX, &RSP_GPR[RSPOpC.rd].UW, GPR_Name(RSPOpC.rd));
}
}