> There really isn't much need for cycle counting in
> your vblank and overscan... for a couple of
> reasons. First, there's actually quite a bit of
> elbow room, cycle-wise, in those areas. If your
> goal is to produce 2 or 4K programs, you could
> easily run out of space before you run out of
cycles.
> Second, you could spend a LOT of time counting
> cycles in your vblank and overscan code, and it may
> often be impossible due to complex loops and
> branches.
well, I haven't seen the things using this point of
view. Indeed, your explanations are judicious ;-)
> If your game kernel begins to "twitch" or behave
> oddly and you suspect you've overrun the cycles,
> backtrack a little bit and try to rule out a few
> other things like page boundary crossing or, as I
> recently experienced, an errant loop structure.
Thanks for the tip, It seems to be easier to dectect
a problem using this way.
Thanks lee,
Take Care,
Chris
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