RE: [stella] Re: About your tutorial

Subject: RE: [stella] Re: About your tutorial
From: Christian Bogey <khryssun@xxxxxxxx>
Date: Mon, 12 Apr 2004 19:52:21 +0200 (CEST)
> 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
> 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,


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