RE: VSM troubleshooting, Asteroids

Hot dog, there it is... I knew it was somewhere !!

It puts a medium sized PLUS on the screen. I jumper the watchdog
and let if fly. I was going to put scope patterns in a doc for
the various test points during the draw but never got around to
it. What I'd like to do is increase the scaling, and have the vsm
code put in three different places in the vsm ram. I've run into
a few cases that it ran fine, but only because it was located low
in the vsm ram (its such a small pgm it does not fully test the
vsm address space). The game would die, but the vsm was fine.
Turns out that one of the high order bits (I forget the chip) was
out in the vsm ram. So to make this run in low vsm and then again
in high vsm memory space would be nice. Did anyone ever document
the vsm command structure ? That would be helpfull, this PLUS is
from the atari catbox documentation and I just adapted the tests
to the 9010. On of these day's I'll make it pretty..

TomW

>
>
> Isn't it still on your website? :)
>
> http://www.enteract.com/~twisnion/asteroids1.txt
>
>
>
> tm
>
> TomWiz wrote:
> >
> > The fluke 9010 Asteroids test script that I wrote
> put up a medium
> > + screen using only
> > the VSM (No CPU) it loaded the vsm directly and
> initiated a go. I
> > use it all the time working on vsm's, maybe someone
> could expand
> > it. I believe John Robertson had it posted in with
> his 9010 test
> > procedure zip. If not, I might have it here at work
> somewhere..
> >
> > TomW
> >
> > > -----Original Message-----
> > > From: owner-vectorlist@synthcom.com
> > > [mailto:owner-vectorlist@synthcom.com]On Behalf Of Kev
> > > Sent: Tuesday, February 12, 2002 12:39 PM
> > > To: vectorlist@synthcom.com
> > > Subject: Re: VECTOR: VSM troubleshooting, Asteroids
> > >
> > >
> > > Yes I'm hoping not to need to duplicate the efforts of
> > > someone else (plus
> > > I'm not real anxious to learn VSM programming).
> > >
> > > I had envisioned a script that I could run from a
> > > 9010A (and that could be
> > > stuck into a ROM format after perfected).
> > >
> > > Problem as I see it is most of the VSM data is sent to
> > > the DACs and that is
> > > the point where you would start troubleshooting back
> > > from, if you had a
> > > "signature" or data pattern of some sort.
> > >
> > > I was hoping it was possible to start some sort of
> > > counter loop that would
> > > count 0-1024 repeatedly. (and be useful)
> > >
> > > Thanks,
> > > Kev
> > >
> > >
> > >
> > > > At one point I was convinced it would be possible to
> > > program a test rom
> > > set that would exercise the VSM and even give pointers
> > > to where the problem
> > > might be, but I never got around to trying to code
> > > anything. It is a bitch
> > > to troubleshoot as it is now and requires quite a bit
> > > of luck :(
> > > >
> > > > Jon
> > >
> > >
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> > >
> >
> >
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Received on Tue Feb 12 12:28:11 2002