RE: Space Duel/Gravitar?

I think the deepest I ever go is 1.
If I remember right (from looking at space duel and star wars vector data)
the deepest they go in the VROM is 2 and if you had a jsr from VRAM it would
make it 3.

-jeff

-----Original Message-----
From: Clay Cowgill [mailto:ClayC@diamondmm.com]
Sent: Monday, August 30, 1999 4:01 PM
To: 'vectorlist@lists.cc.utexas.edu'
Subject: RE: Space Duel/Gravitar?

> Clay Cowgill wrote:
> > (Yeah, these two are pretty close, although Space Duel went to the
> > integrated Vector Address Generator circuit. Chages the stack depth I
> > think...)
>
> ohhh, that is a good thing to know. Isn't the stack depth 4 on Tempest?
> How big is it on the AVG chip? Is this something you found out about
> from those 'insider' Atari docs or did you write a little prog?
>
Actually it's something I heard, so I can't really swear to it's accuracy...
;-) The Tempest stack is 4, and the AVG replacement boards I'm (still)
working on are 4 deep as well. The rumor though is that the AVG ASIC is
only three levels deep due to cost/silicon restrictions at the time. Maybe
Jeff or Anders know for sure from their coding... (I haven't written
anything on SpaceDuel or other ASIC based AVGs.)

-Clay
Received on Tue Aug 31 00:21:57 1999