Re: A83:STILL NEED HELP!


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Re: A83:STILL NEED HELP!





> Dines Justesen wrote:
> > BTW Are you sure it is 53 T-states ?
>
> When I fiddled with this, a long time ago, I think I landed on about 30..
> (I dont even have a ti83 anylonger)
> The tricky thing is that the exact number changes, depending on
temperature and
> how good your batteries are.

Yep, indeed. Lotus doesn't function right when the batteries are new because
it waits not long enough. By the way, does Lotus use the fastCopy routine???
I think so because it requires ZGFXL which has no real other useful
functions, but at the other hand, I had no problems with other games which
used it... I remember Sqrxz having the same problems too (long ago...).

Oh, and I heard the 83+ required even more waiting (the processor is
probably running a little faster or so).


> Another trick to speed up the update, is to set the screen in
"column-mode" and
> write colums to it, instead of rows. If you do that, you will save quite a
few
> writes to the controller, and that is good, because writes to the
controller is
> _slow_.

the fastCopy routine of SOS (and ION) has the auto-increment mode set to
columns. A shame that it doesn't increase the row when it reaches the end by
the way.


~Grauw


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