Bug: Battlezone high score rendering

On Tue, 22 Jul 2003, Scott Brasington wrote:
>
> Thanks for the quick reply. I thought that was just a bug in MAME
> or something.
>
> If anybody knows of any BZ bugs or has ideas on *simple* feature requests,
> please let me know. If they are simple enough to implement I might be able
> to include them.

One BZ bug that should be easy to fix comes to mind:

After the initials/score, the high score table displays one tank per
100,000 points scored. For high scoring games (500000+), the tanks can
stretch "off" the screen.

As long as only three players have tanks "off" the screen, that's only a
minor bug. (Noticeable flicker, maybe a little stress on a driver
transistor, but only for a few seconds at a time).

When all 10 players have 500K+ high scores (I've installed Mark Jenison's
BZ score-save mod a few years ago and tweaked it to store the top 9 scores
forever, which is how I triggered it), drawing *all* those tanks overflows
a buffer in the state machine, leading to a corrupt display about 2/3 of
the way through the high score table.

Note: I've forgotten which rev of the ROMs I'm using and haven't looked at
the original BZ score code. It's possible that this is the bug that was
fixed between the two revisions of BZ?

Later,
Doug.

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Received on Tue Jul 22 15:21:37 2003