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Optimize SLTI in RSP Recompiler 

Mia Hamm benefits from this optimization.
This commit is contained in:
LegendOfDragoon 2016-08-22 12:54:24 -07:00
parent a960bc94ee
commit 10260dbdc8
1 changed files with 11 additions and 3 deletions
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14
Source/RSP/Recompiler Ops.c
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@ -517,9 +517,17 @@ void Compile_SLTI ( void ) {
if (RSPOpC.rt == 0) return;
Immediate = (short)RSPOpC.immediate;
XorX86RegToX86Reg(x86_ECX, x86_ECX);
CompConstToVariable(Immediate, &RSP_GPR[RSPOpC.rs].UW, GPR_Name(RSPOpC.rs));
Setl(x86_ECX);
if (Immediate == 0)
{
MoveVariableToX86reg(&RSP_GPR[RSPOpC.rs].UW, GPR_Name(RSPOpC.rs), x86_ECX);
ShiftRightUnsignImmed(x86_ECX, 31);
}
else
{
XorX86RegToX86Reg(x86_ECX, x86_ECX);
CompConstToVariable(Immediate, &RSP_GPR[RSPOpC.rs].UW, GPR_Name(RSPOpC.rs));
Setl(x86_ECX);
}
MoveX86regToVariable(x86_ECX, &RSP_GPR[RSPOpC.rt].UW, GPR_Name(RSPOpC.rt));
}