ShuriZma
/
project64
mirror of https://github.com/project64/project64.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Merge pull request #803 from cxd4/speed-plz 

re-ordered CPU interpreter main loop if/else branch predictor
This commit is contained in:
zilmar 2015-12-04 12:41:39 +11:00
parent d87a5cedc0 2c3c13862b
commit 8b8c7fa2bb
1 changed files with 50 additions and 51 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

21
Source/Project64/N64 System/Interpreter/Interpreter CPU.cpp
View File

@ -276,14 +276,19 @@ void CInterpreterCPU::ExecuteCPU()
{ {
while (!Done) while (!Done)
{ {
if (g_MMU->LW_VAddr(PROGRAM_COUNTER, Opcode.Hex)) if (!g_MMU->LW_VAddr(PROGRAM_COUNTER, Opcode.Hex))
{ {
/*if (PROGRAM_COUNTER > 0x80000300 && PROGRAM_COUNTER< 0x80380000) g_Reg->DoTLBReadMiss(R4300iOp::m_NextInstruction == JUMP, PROGRAM_COUNTER);
R4300iOp::m_NextInstruction = NORMAL;
continue;
}
/* if (PROGRAM_COUNTER > 0x80000300 && PROGRAM_COUNTER < 0x80380000)
{ {
WriteTraceF((TraceType)(TraceError | TraceNoHeader),"%X: %s",*_PROGRAM_COUNTER,R4300iOpcodeName(Opcode.Hex,*_PROGRAM_COUNTER)); WriteTraceF((TraceType)(TraceError | TraceNoHeader),"%X: %s",*_PROGRAM_COUNTER,R4300iOpcodeName(Opcode.Hex,*_PROGRAM_COUNTER));
//WriteTraceF((TraceType)(TraceError | TraceNoHeader),"%X: %s t9: %08X v1: %08X",*_PROGRAM_COUNTER,R4300iOpcodeName(Opcode.Hex,*_PROGRAM_COUNTER),_GPR[0x19].UW[0],_GPR[0x03].UW[0]); // WriteTraceF((TraceType)(TraceError | TraceNoHeader),"%X: %s t9: %08X v1: %08X",*_PROGRAM_COUNTER,R4300iOpcodeName(Opcode.Hex,*_PROGRAM_COUNTER),_GPR[0x19].UW[0],_GPR[0x03].UW[0]);
//WriteTraceF((TraceType)(TraceError | TraceNoHeader),"%X: %d %d",*_PROGRAM_COUNTER,*g_NextTimer,g_SystemTimer->CurrentType()); // WriteTraceF((TraceType)(TraceError | TraceNoHeader),"%X: %d %d",*_PROGRAM_COUNTER,*g_NextTimer,g_SystemTimer->CurrentType());
}*/ } */
m_R4300i_Opcode[Opcode.op](); m_R4300i_Opcode[Opcode.op]();
NextTimer -= CountPerOp; NextTimer -= CountPerOp;
@ -333,12 +338,6 @@ void CInterpreterCPU::ExecuteCPU()
g_Notify->BreakPoint(__FILEW__, __LINE__); g_Notify->BreakPoint(__FILEW__, __LINE__);
} }
} }
else
{
g_Reg->DoTLBReadMiss(R4300iOp::m_NextInstruction == JUMP, PROGRAM_COUNTER);
R4300iOp::m_NextInstruction = NORMAL;
}
}
} }
__except (g_MMU->MemoryFilter(GetExceptionCode(), GetExceptionInformation())) __except (g_MMU->MemoryFilter(GetExceptionCode(), GetExceptionInformation()))
{ {