2004-12-14 sanmaiwashi
It has improved that load state of OBC1 was a bug.

It changed definition of timing.
NTSC crystal 21.47727MHz
PAL crystal 21.28137MHz
Crystal / 6 == fast 65c816 CPU clock.
Crystal / 4 == PPU master clock, 341 clocks per scanline.
Is this the same as NES?
NTSC frames per second 60.098469924559559
PAL frames per second 50.006978908188586
NTSC scanline time 63.509002774e-6
PAL scanline time 64.093618033e-6

Now, the definition is as follows.
NTSC frames per second 60
PAL frames per second 50
NTSC scanline time 63.613231552e-6
PAL scanline time 64.102564103e-6
Scanlinetime is used in SoundSync sample length calculation.

It changed SA1MainLoop ()
...
for (int i = 0; i < 3 && SA1.Executing; i++) {
CheckFlags();
Opcodes();
}
...