[A83] Re: Secret program


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[A83] Re: Secret program




That counts for all Z80 based TI-calcs I think. What is different between
the 83- and 83+ is the interrupt speed. On the 83-, it's about 180Hz and
according to this page ( http://tcpa.calc.org/members/dan/83pfreq.txt )
it's about 330Hz on the 83+. And there doesn't seem to be a way to slow
that down.

----- Original Message -----
From: "Xavier LaRue" <paxl@ca.inter.net>
To: <assembly-83@lists.ticalc.org>
Sent: Saturday, November 17, 2001 22:19
Subject: [A83] Re: Secret program


>
> Hi
> Interupt on 83+ are at variable speed.. just look at:
> http://www.radicalsoft.org/michael/info/Interrupt%20Acceleration.txt
>
> Hope that help
> Paxl
>
> On Saturday 17 November 2001 12:33 pm, you wrote:
> > > From: "Ronald Teune" <rtwolf@gmx.net>
> > >
> > > What about the 'secret program' Tijl Coosemans mentioned? Is it
still
> > > secret? I meant the interrupt thing.
> >
> > Well, it's not public yet, but I'll tell you what it is.
> >
> > It's an interrupt based greyscale routine for the 83- with no flicker
at
> > all whatever your battery status is. The only problem is that it eats
> > processor power so it's probably useless in games. I still have to try
> > that out though.
> >
> > On the 83+ it didn't work because its interrupt speed is about twice
as
> > fast as on the 83- and that c





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