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dsplle - small optimization for my previous commit + some cleaning 

git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@7589 8ced0084-cf51-0410-be5f-012b33b47a6e
This commit is contained in:
Marko Pusljar 2011-06-05 12:35:11 +00:00
parent b808af1d7f
commit 81844b8955
6 changed files with 10 additions and 52 deletions
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2
Source/Core/Core/Src/DSP/DSPEmitter.cpp
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@ -80,7 +80,7 @@ void DSPEmitter::ClearIRAM()
void DSPEmitter::ClearIRAMandDSPJITCodespaceReset()
{
ResetCodePtr();
ClearCodeSpace();
CompileDispatcher();
stubEntryPoint = CompileStub();

1
Source/Core/Core/Src/DSP/DSPEmitter.h
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@ -82,7 +82,6 @@ public:
void popExtValueToReg();
void pushExtValueFromMem(u16 dreg, u16 sreg);
void pushExtValueFromMem2(u16 dreg, u16 sreg);
void zeroWriteBackLog(const UDSPInstruction opc);
// Ext commands
void l(const UDSPInstruction opc);

1
Source/Core/Core/Src/DSP/Jit/DSPJitArithmetic.cpp
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@ -957,7 +957,6 @@ void DSPEmitter::inc(const UDSPInstruction opc)
else
{
set_long_acc(dreg);
Update_SR_Register64_Carry(EAX, tmp1);//why is this still done?
}
gpr.putXReg(tmp1);
#else

24
Source/Core/Core/Src/DSP/Jit/DSPJitBranch.cpp
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@ -41,24 +41,19 @@ static void ReJitConditional(const UDSPInstruction opc, DSPEmitter& emitter)
case 0x0: // GE - Greater Equal
case 0x1: // L - Less
emitter.MOV(16, R(EDX), R(EAX));
emitter.SHR(16, R(EDX), Imm8(3)); //SR_SIGN flag
emitter.SHR(16, R(EAX), Imm8(1)); //SR_OVERFLOW flag
emitter.SHL(16, R(EDX), Imm8(2));
emitter.XOR(16, R(EAX), R(EDX));
emitter.TEST(16, R(EAX), Imm16(1));
emitter.TEST(16, R(EAX), Imm16(8));
break;
case 0x2: // G - Greater
case 0x3: // LE - Less Equal
emitter.MOV(16, R(EDX), R(EAX));
emitter.MOV(16, R(ECX), R(EAX));
emitter.SHR(16, R(EDX), Imm8(3)); //SR_SIGN flag
emitter.SHR(16, R(EAX), Imm8(1)); //SR_OVERFLOW flag
emitter.SHL(16, R(EDX), Imm8(2));
emitter.XOR(16, R(EAX), R(EDX));
emitter.NOT(16, R(EAX));
emitter.SHR(16, R(ECX), Imm8(2)); //SR_ARITH_ZERO
emitter.NOT(16, R(ECX));
emitter.AND(16, R(EAX), R(ECX));
emitter.NOT(16, R(EAX));
emitter.TEST(16, R(EAX), Imm16(1));
emitter.SHL(16, R(ECX), Imm8(1));
emitter.OR(16, R(EAX), R(ECX));
emitter.TEST(16, R(EAX), Imm16(8));
break;
case 0x4: // NZ - Not Zero
case 0x5: // Z - Zero
@ -76,14 +71,13 @@ static void ReJitConditional(const UDSPInstruction opc, DSPEmitter& emitter)
case 0xb: // ?
emitter.MOV(16, R(EDX), R(EAX));
emitter.MOV(16, R(ECX), R(EAX));
emitter.SHR(16, R(EDX), Imm8(4)); //SR_OVER_S32 flag
emitter.SHR(16, R(EAX), Imm8(5)); //SR_TOP2BITS flag
emitter.SHR(16, R(EDX), Imm8(1));
emitter.OR(16, R(EAX), R(EDX));
emitter.SHR(16, R(ECX), Imm8(2)); //SR_ARITH_ZERO
emitter.SHL(16, R(ECX), Imm8(2));
emitter.NOT(16, R(ECX));
emitter.AND(16, R(EAX), R(ECX));
emitter.NOT(16, R(EAX));
emitter.TEST(16, R(EAX), Imm16(1));
emitter.TEST(16, R(EAX), Imm16(0x10));
break;
case 0xc: // LNZ - Logic Not Zero
case 0xd: // LZ - Logic Zero

32
Source/Core/Core/Src/DSP/Jit/DSPJitExtOps.cpp
View File

@ -728,35 +728,3 @@ void DSPEmitter::popExtValueToReg() {
}
storeIndex2 = -1;
}
// This function is being called in the main op after all input regs were read
// and before it writes into any regs. This way we can always use bitwise or to
// apply the ext command output, because if the main op didn't change the value
// then 0 | ext output = ext output and if it did then bitwise or is still the
// right thing to do
//this is only needed as long as we do fallback for ext ops
void DSPEmitter::zeroWriteBackLog(const UDSPInstruction opc)
{
const DSPOPCTemplate *tinst = GetOpTemplate(opc);
// Call extended
if (!tinst->extended)
return;
if ((opc >> 12) == 0x3) {
if (! extOpTable[opc & 0x7F]->jitFunc)
{
gpr.pushRegs();
ABI_CallFunction((void*)::zeroWriteBackLog);
gpr.popRegs();
}
} else {
if (! extOpTable[opc & 0xFF]->jitFunc)
{
gpr.pushRegs();
ABI_CallFunction((void*)::zeroWriteBackLog);
gpr.popRegs();
}
}
return;
}

2
Source/Core/Core/Src/DSP/Jit/DSPJitMisc.cpp
View File

@ -379,7 +379,6 @@ void DSPEmitter::lris(const UDSPInstruction opc)
// an opcode extension but not do anything. At least according to duddie.
void DSPEmitter::nx(const UDSPInstruction opc)
{
zeroWriteBackLog(opc);
}
//----
@ -479,7 +478,6 @@ void DSPEmitter::sbset(const UDSPInstruction opc)
// but it's harder to know exactly what effect they have.
void DSPEmitter::srbith(const UDSPInstruction opc)
{
zeroWriteBackLog(opc);
switch ((opc >> 8) & 0xf)
{
// M0/M2 change the multiplier mode (it can multiply by 2 for free).