RE: Battlezone Question

This is part of the game programming, and is as designed. There is no
hardware that differentiates between upper screen and lower screen formats
or areas, like there is on say Pac Man. For vectors, its just a list of
drawing points in memory.

So you indeed still have a boardset that works perfectly!

Thanks,

Chris Brooks

  _____

From: Matt Rossiter [mailto:matt@rossiters.com]
Sent: Thursday, March 12, 2009 1:50 AM
To: Vectorlist
Subject: VECTOR: Battlezone Question

I have a boardset that works perfectly except for one strange thing.

Normally in the red area where you see the score and warning messages, you
don't see things like exploding tank parts, missiles dropping out of the
sky, the screen cracks, etc. On this board you can see everything in the
red area.

Although it looks pretty cool, I'm wondering what part of the circuitry
limits the playground area and the score/messages area? It seems like there
should be some "Y" limitation. I notice that the screen gets really bright
in attract mode right before the Battlezone logo scrolls up. Which means to
me the beam is already turned on before the Battlezone logo is visible on
the screen.

Maybe a bad counter?

Matt

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Received on Thu Mar 12 06:57:22 2009