diff options
| author | calc84maniac <calc84maniac@gmail.com> | 2012-01-02 15:07:36 -0500 |
|---|---|---|
| committer | calc84maniac <calc84maniac@gmail.com> | 2012-01-02 15:07:36 -0500 |
| commit | 7d262ff1f423ba44d931d3cd79f837446c36ee0f (patch) | |
| tree | 1906694bd071155cb7fcebae6b3e78446cb87efe /Source/Core | |
| parent | a2bd91b7266826199ba4b407ac22639d4cd9334d (diff) | |
rlwimix optimizations
Diffstat (limited to 'Source/Core')
| -rw-r--r-- | Source/Core/Core/Src/PowerPC/Jit64/Jit_Integer.cpp | 78 |
1 files changed, 66 insertions, 12 deletions
diff --git a/Source/Core/Core/Src/PowerPC/Jit64/Jit_Integer.cpp b/Source/Core/Core/Src/PowerPC/Jit64/Jit_Integer.cpp index b246a2cc9e..cfac1728d6 100644 --- a/Source/Core/Core/Src/PowerPC/Jit64/Jit_Integer.cpp +++ b/Source/Core/Core/Src/PowerPC/Jit64/Jit_Integer.cpp @@ -1476,25 +1476,79 @@ void Jit64::rlwimix(UGeckoInstruction inst) { u32 mask = Helper_Mask(inst.MB,inst.ME); gpr.SetImmediate32(a, ((u32)gpr.R(a).offset & ~mask) | (_rotl((u32)gpr.R(s).offset,inst.SH) & mask)); + if (inst.Rc) + { + ComputeRC(gpr.R(a)); + } } else { gpr.Lock(a, s); - gpr.KillImmediate(a, true, true); + gpr.BindToRegister(a, true, true); u32 mask = Helper_Mask(inst.MB, inst.ME); - MOV(32, R(EAX), gpr.R(s)); - AND(32, gpr.R(a), Imm32(~mask)); - if (inst.SH) - ROL(32, R(EAX), Imm8(inst.SH)); - AND(32, R(EAX), Imm32(mask)); - OR(32, gpr.R(a), R(EAX)); + if (mask == 0 || (a == s && inst.SH == 0)) + { + if (inst.RC) + { + ComputeRC(gpr.R(a)); + } + } + else if (mask == 0xFFFFFFFF) + { + if (a != s) + { + MOV(32, gpr.R(a), gpr.R(s)); + } + if (inst.SH) + { + ROL(32, gpr.R(a), Imm8(inst.SH)); + } + if (inst.Rc) + { + ComputeRC(gpr.R(a)); + } + } + else if (inst.SH) + { + if (mask == -(1 << inst.SH)) + { + MOV(32, R(EAX), gpr.R(s)); + SHL(32, R(EAX), Imm8(inst.SH)); + AND(32, gpr.R(a), Imm32(~mask)); + OR(32, gpr.R(a), R(EAX)); + } + else if (mask == (1 << inst.SH) - 1) + { + MOV(32, R(EAX), gpr.R(s)); + SHR(32, R(EAX), Imm8(32-inst.SH)); + AND(32, gpr.R(a), Imm32(~mask)); + OR(32, gpr.R(a), R(EAX)); + } + else + { + MOV(32, R(EAX), gpr.R(s)); + ROL(32, R(EAX), Imm8(inst.SH)); + XOR(32, R(EAX), gpr.R(a)); + AND(32, R(EAX), Imm32(mask)); + XOR(32, gpr.R(a), R(EAX)); + } + if (inst.Rc) + { + GenerateRC(); + } + } + else + { + XOR(32, gpr.R(a), gpr.R(s)); + AND(32, gpr.R(a), Imm32(~mask)); + XOR(32, gpr.R(a), gpr.R(s)); + if (inst.Rc) + { + GenerateRC(); + } + } gpr.UnlockAll(); } - - if (inst.Rc) - { - ComputeRC(gpr.R(a)); - } } void Jit64::rlwnmx(UGeckoInstruction inst) |