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a few attempts at optimization

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This commit is contained in:
StapleButter
2017-04-23 15:25:15 +02:00
parent 60cdc7d6f7
commit 1759672d14
6 changed files with 109 additions and 42 deletions
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75
src/GPU3D.cpp
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@ -1807,6 +1807,45 @@ u32* GetLine(int line)
}
void WriteToGXFIFO(u32 val)
{
if (NumCommands == 0)
{
NumCommands = 4;
CurCommand = val;
ParamCount = 0;
TotalParams = CmdNumParams[CurCommand & 0xFF];
if (TotalParams > 0) return;
}
else
ParamCount++;
for (;;)
{
if ((CurCommand & 0xFF) || (NumCommands == 4 && CurCommand == 0))
{
CmdFIFOEntry entry;
entry.Command = CurCommand & 0xFF;
entry.Param = val;
CmdFIFOWrite(entry);
}
if (ParamCount >= TotalParams)
{
CurCommand >>= 8;
NumCommands--;
if (NumCommands == 0) break;
ParamCount = 0;
TotalParams = CmdNumParams[CurCommand & 0xFF];
}
if (ParamCount < TotalParams)
break;
}
}
u8 Read8(u32 addr)
{
printf("unknown GPU3D read8 %08X\n", addr);
@ -2012,41 +2051,7 @@ void Write32(u32 addr, u32 val)
if (addr >= 0x04000400 && addr < 0x04000440)
{
if (NumCommands == 0)
{
NumCommands = 4;
CurCommand = val;
ParamCount = 0;
TotalParams = CmdNumParams[CurCommand & 0xFF];
if (TotalParams > 0) return;
}
else
ParamCount++;
for (;;)
{
if ((CurCommand & 0xFF) || (NumCommands == 4 && CurCommand == 0))
{
CmdFIFOEntry entry;
entry.Command = CurCommand & 0xFF;
entry.Param = val;
CmdFIFOWrite(entry);
}
if (ParamCount >= TotalParams)
{
CurCommand >>= 8;
NumCommands--;
if (NumCommands == 0) break;
ParamCount = 0;
TotalParams = CmdNumParams[CurCommand & 0xFF];
}
if (ParamCount < TotalParams)
break;
}
WriteToGXFIFO(val);
return;
}