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

SIF does status communication as well, which we detected as null transfers. 

Not interrupting on that seems to be bad for a couple games.
This commit should fix Persona3 again. 
(The Eternal Poison problem is something else, will have to look at it more.)

git-svn-id: http://pcsx2.googlecode.com/svn/trunk@2629 96395faa-99c1-11dd-bbfe-3dabce05a288
This commit is contained in:
ramapcsx2 2010-02-23 13:42:58 +00:00
parent 227a651c17
commit f8e9c20664
2 changed files with 14 additions and 30 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

22
pcsx2/Sif0.cpp
View File

@ -164,14 +164,10 @@ static __forceinline void EndEE()
sif0.ee.busy = false; sif0.ee.busy = false;
if (sif0.ee.cycles == 0) if (sif0.ee.cycles == 0)
{ {
// No transfer happened,
DevCon.Warning("SIF0 EE: cycles = 0"); DevCon.Warning("SIF0 EE: cycles = 0");
sif0.ee.cycles = 1;
} }
else CPU_INT(DMAC_SIF0, sif0.ee.cycles*BIAS);
{
// hence no Interrupt.
CPU_INT(DMAC_SIF0, sif0.ee.cycles*BIAS);
}
} }
// Stop transferring iop, and signal an interrupt. // Stop transferring iop, and signal an interrupt.
@ -184,17 +180,13 @@ static __forceinline void EndIOP()
if (sif0.iop.cycles == 0) if (sif0.iop.cycles == 0)
{ {
// No transfer happened,
DevCon.Warning("SIF0 IOP: cycles = 0"); DevCon.Warning("SIF0 IOP: cycles = 0");
sif0.iop.cycles = 1;
} }
else // 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:
// hence no Interrupt. //PSX_INT(IopEvt_SIF0, ( ( sif0.iop.cycles*BIAS ) / 4 ) / 8);
// iop is 1/8th the clock rate of the EE and psxcycles is in words (not quadwords) PSX_INT(IopEvt_SIF0, sif0.iop.cycles);
// So when we're all done, the equation looks like thus:
//PSX_INT(IopEvt_SIF0, ( ( sif0.iop.cycles*BIAS ) / 4 ) / 8);
PSX_INT(IopEvt_SIF0, sif0.iop.cycles);
}
} }
// Handle the EE transfer. // Handle the EE transfer.

18
pcsx2/Sif1.cpp
View File

@ -185,14 +185,10 @@ static __forceinline void EndEE()
// (Cause of double interrupts on the EE) // (Cause of double interrupts on the EE)
if (sif1.ee.cycles == 0) if (sif1.ee.cycles == 0)
{ {
// No transfer happened
DevCon.Warning("SIF1 EE: cycles = 0"); DevCon.Warning("SIF1 EE: cycles = 0");
sif1.ee.cycles = 1;
} }
else CPU_INT(DMAC_SIF1, min((int)(sif1.ee.cycles*BIAS), 384));
{
// Hence no Interrupt (fixes Eternal Poison reboot when selecting new game)
CPU_INT(DMAC_SIF1, min((int)(sif1.ee.cycles*BIAS), 384));
}
} }
// Stop processing IOP, and signal an interrupt. // Stop processing IOP, and signal an interrupt.
@ -209,15 +205,11 @@ static __forceinline void EndIOP()
//Total cycles over 1024 makes SIF too slow to keep up the sound stream in so3... //Total cycles over 1024 makes SIF too slow to keep up the sound stream in so3...
if (sif1.iop.cycles == 0) if (sif1.iop.cycles == 0)
{ {
// No transfer happened
DevCon.Warning("SIF1 IOP: cycles = 0"); DevCon.Warning("SIF1 IOP: cycles = 0");
sif1.iop.cycles = 1;
} }
else // iop is 1/8th the clock rate of the EE and psxcycles is in words (not quadwords)
{ PSX_INT(IopEvt_SIF1, min((sif1.iop.cycles * 26), 1024));
// Hence no Interrupt
// iop is 1/8th the clock rate of the EE and psxcycles is in words (not quadwords)
PSX_INT(IopEvt_SIF1, min((sif1.iop.cycles * 26), 1024));
}
} }
// Handle the EE transfer. // Handle the EE transfer.