[A83] Re: Secret program
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[A83] Re: Secret program
I guess you can't slow down the calls to interrupts ... so you might put
that it updates only every other interrupt call ... .
the first thing you do in the interrupt si to check if it's even or odd
interrupt calls....
if it's one then update, if it's the other RETI immediately... should be
ok... if 180*360 ~ 330 in 1 sec.... it's ok...
----- Original Message -----
From: "Tijl Coosemans" <tijl@ulyssis.org>
To: <assembly-83@lists.ticalc.org>
Sent: Saturday, November 17, 2001 10:48 PM
Subject: [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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