{
u32 count;
+ rcnts[index].mode |= RcUnknown10;
+
if( rcnts[index].counterState == CountToTarget )
{
+ count = psxRegs.cycle;
+ count -= rcnts[index].cycleStart;
+ if( rcnts[index].rate > 1 )
+ count /= rcnts[index].rate;
if( rcnts[index].mode & RcCountToTarget )
- {
- count = psxRegs.cycle;
- count -= rcnts[index].cycleStart;
- if (rcnts[index].rate > 1)
- count /= rcnts[index].rate;
count -= rcnts[index].target;
- }
- else
- {
- count = _psxRcntRcount( index );
- }
_psxRcntWcount( index, count );
}
rcnts[index].mode |= RcCountEqTarget;
+
+ if( count < 0xffff ) // special case, overflow too?
+ return;
}
- else if( rcnts[index].counterState == CountToOverflow )
+
+ if( rcnts[index].counterState == CountToOverflow )
{
count = psxRegs.cycle;
count -= rcnts[index].cycleStart;
rcnts[index].mode |= RcOverflow;
}
-
- rcnts[index].mode |= RcUnknown10;
-
- psxRcntSet();
}
void psxRcntUpdate()
base_cycle += hsync_steps * 8791293;
rcnts[3].cycle = base_cycle >> 12;
base_cycle &= 0xfff;
- psxRcntSet();
}
+ psxRcntSet();
+
#ifndef NDEBUG
DebugVSync();
#endif