diff --git a/Source/Core/Core/PowerPC/Jit64/Jit_Integer.cpp b/Source/Core/Core/PowerPC/Jit64/Jit_Integer.cpp index bd4b20a2d3..607c001bd7 100644 --- a/Source/Core/Core/PowerPC/Jit64/Jit_Integer.cpp +++ b/Source/Core/Core/PowerPC/Jit64/Jit_Integer.cpp @@ -948,6 +948,31 @@ void Jit64::subfx(UGeckoInstruction inst) if (inst.OE) GenerateConstantOverflow((s64)i - (s64)j); } + else if (gpr.IsImm(a)) + { + s32 j = gpr.SImm32(a); + RCOpArg Rb = gpr.Use(b, RCMode::Read); + RCX64Reg Rd = gpr.Bind(d, RCMode::Write); + RegCache::Realize(Rb, Rd); + + if (d == b) + { + SUB(32, Rd, Imm32(j)); + if (inst.OE) + GenerateOverflow(); + } + else if (Rb.IsSimpleReg() && !inst.OE) + { + LEA(32, Rd, MDisp(Rb.GetSimpleReg(), -j)); + } + else + { + MOV(32, Rd, Rb); + SUB(32, Rd, Imm32(j)); + if (inst.OE) + GenerateOverflow(); + } + } else { RCOpArg Ra = gpr.Use(a, RCMode::Read); @@ -965,10 +990,6 @@ void Jit64::subfx(UGeckoInstruction inst) MOV(32, Rd, Rb); SUB(32, Rd, R(RSCRATCH)); } - else if (Rb.IsSimpleReg() && Ra.IsImm() && !inst.OE) - { - LEA(32, Rd, MDisp(Rb.GetSimpleReg(), -Ra.SImm32())); - } else { MOV(32, Rd, Rb);