RE: Space Duel/Gravitar?

Linear scaling is on all the AVG games except space duel. (which I found out
the hard way. I had a way cool explosion routine in my space wars that works
correctly in MAME but not at all on real hardware)

-----Original Message-----
From: Jess Askey [mailto:jess@magenta.com]
Sent: Monday, August 30, 1999 2:50 PM
To: vectorlist@lists.cc.utexas.edu
Subject: Re: Space Duel/Gravitar?

Just for clarity... is the only main difference between SD and Gravitar
hardware the
existance of Linear Scaling on Gravitar (not counting that the memory map is
a bit
different).
  My alpha 1 looks to be just like Gravitar with the addition of the
"sparkle" and X-Y
flip ability in the VG.

So does it go like this as far as the VG is concerned.....

BattleZone,
Red Baron First AVG (all basic funtions)

Tempest,SpaceDuel Color!!
 
Gravitar/BW,
Star Wars Linear Scaling added

Major Havoc Sparkle, XY flip, ColorRAM

I haven't looked at Quantum hardware lately, did they use a new State
Machine PROM
to make single instructions out of all the 2-step 8 bit instructions?

Clay Cowgill wrote:
>
> Gravitar/BlackWidow is trivial as long as you're starting from a Gravitar
or
> BlackWindow board (they're the same H/W). A Gravitar type board looks to
be
> a functional superset of a SpaceDuel platform as well, so it's probably
> multigame-able too. Going the other way (gravitar/BW on a SpaceDuel
> boardset) is significantly more involved.
>
> So in answer to your question, yes, I'd look for a Gravitar board. ;-)
>
> -Clay
>
> > ----------
> > From: tom mcclintock[SMTP:tomm@mgcap.com]
> >
> > With many thanks to Callan, I have just picked up a nice (albeit
currently
> > non working)
> > Space Duel, and was wondering if Clay's proposed Gravitar/Black Widow
> > multigame will
> > also encompass Space Duel? The boards look pretty similar... ;) Or am
I
> > better off
> > getting a Gravitar board to swap out?
> >
Received on Tue Aug 31 00:14:51 1999