ShuriZma
/
pcsx2
mirror of https://github.com/PCSX2/pcsx2.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

SIF: Kind of revert a SIF timing change made a while back to fix Parappa the Rapper 2

This commit is contained in:
refractionpcsx2 2021-09-23 04:44:23 +01:00
parent ffbfd2c844
commit d73bf834b3
2 changed files with 8 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
pcsx2/Sif0.cpp
View File

@ -182,9 +182,12 @@ static __fi void EndIOP()
DevCon.Warning("SIF0 IOP: cycles = 0");
sif0.iop.cycles = 1;
}
// iop is 1/8th the clock rate of the EE and psxcycles is in words (not quadwords)
// So when we're all done, the equation looks like thus:
//PSX_INT(IopEvt_SIF0, ( ( sif0.iop.cycles*BIAS ) / 4 ) / 8);
// Hack alert
// Parappa the rapper hates SIF0 taking the length of time it should do on bigger packets
// I logged it and couldn't work out why, changing any other SIF timing (EE or IOP) seems to have no effect.
if (sif0.iop.cycles > 1000)
sif0.iop.cycles >>= 1; //2 word per cycle
PSX_INT(IopEvt_SIF0, sif0.iop.cycles);
}

4
pcsx2/ps2/LegacyDmac.cpp
View File

@ -554,7 +554,7 @@ __fi bool dmacWrite32( u32 mem, mem32_t& value )
new_source = "None";
break;
}
DevCon.Warning("32bit Stall Source Changed to %s", new_source.c_str());
//DevCon.Warning("32bit Stall Source Changed to %s", new_source.c_str());
}
if ((oldvalue & 0xC0) != (value & 0xC0))
{
@ -575,7 +575,7 @@ __fi bool dmacWrite32( u32 mem, mem32_t& value )
new_dest = "None";
break;
}
DevCon.Warning("32bit Stall Destination Changed to %s", new_dest.c_str());
//DevCon.Warning("32bit Stall Destination Changed to %s", new_dest.c_str());
}
#endif
return false;