ShuriZma
/
snes9x
mirror of https://github.com/snes9xgit/snes9x.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

fix IRQ v-counter edge case

This commit is contained in:
OV2 2012-08-12 21:10:00 +02:00
parent 3c8804d6ca
commit ef683d61c6
1 changed files with 4 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
cpuexec.h
View File

@ -291,8 +291,11 @@ static inline void S9xCheckInterrupts (void)
if (PPU.VTimerEnabled) if (PPU.VTimerEnabled)
{ {
int32 vcounter = CPU.V_Counter; int32 vcounter = CPU.V_Counter;
if (CPU.Cycles >= Timings.H_Max && (!PPU.HTimerEnabled || PPU.HTimerPosition < CPU.PrevCycles)) if (CPU.Cycles >= Timings.H_Max && (!PPU.HTimerEnabled || PPU.HTimerPosition < CPU.PrevCycles)) {
vcounter++; vcounter++;
if(vcounter >= Timings.V_Max)
vcounter = 0;
}
if (vcounter != PPU.VTimerPosition) if (vcounter != PPU.VTimerPosition)
thisIRQ = FALSE; thisIRQ = FALSE;