another timer change for Dai Makaimura

git-svn-id: file:///home/notaz/opt/svn/PicoDrive@473 be3aeb3a-fb24-0410-a615-afba39da0efa
This commit is contained in:
notaz 2008-05-30 20:02:23 +00:00
parent de89bf45d7
commit 6720087563

View file

@ -815,7 +815,7 @@ int ym2612_write_local(u32 a, u32 d, int is_from_z80)
//ym2612.OPN.ST.TBC = (256-d)<<4;
//ym2612.OPN.ST.TBC *= 18;
//ym2612.OPN.ST.TBT = 0;
timer_b_step = timer_b_offset = 262840 * (256 - d); // 262881
timer_b_step = timer_b_offset = 262800 * (256 - d); // 262881
if (ym2612.OPN.ST.mode & 2) {
int cycles = is_from_z80 ? z80_cyclesDone() : cycles_68k_to_z80(SekCyclesDone());
timer_b_next_oflow = (cycles << 8) + timer_b_step;