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newemuloop: handle an edge case in timing logic better

This commit is contained in:
zeromus 2009-07-17 00:09:33 +00:00
parent 24a040ef2b
commit e482c772e2
1 changed files with 8 additions and 2 deletions
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10
desmume/src/MMU.cpp
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@ -1310,9 +1310,15 @@ static INLINE u16 read_timer(int proc, int timerIndex)
printf("NEW EMULOOP BAD NEWS PLEASE REPORT: TIME READ DIFF < 0 (%d) (%d) (%d)\n",diff,timerIndex,MMU.timerMODE[proc][timerIndex]);
s32 units = diff / (1<<MMU.timerMODE[proc][timerIndex]);
s32 ret;
s32 ret = 65535 - units;
if(ret<0) printf("NEW EMULOOP BAD NEWS PLEASE REPORT: TIME READ RETURN < 0: %d\n", ret);
if(units==65536)
ret = 0;
else if(units>65536) {
printf("NEW EMULOOP BAD NEWS PLEASE REPORT: UNITS %d:%d = %d\n",proc,timerIndex,units);
ret = 0;
}
else ret = 65535 - units;
return ret;
}