Don't let this happen to YOU -OR- Asteroids to AD mod

Gang,

I've been running an Asteroids board in my AD cabinet for a while,
and as everyone knows, the rotate buttons were reversed. A bit of an
annoyance, but I didn't think much of it. In fact, I started to get
pretty good at it. The problem didn't appear until I put an AD board
back in the cabinet, only to find that I now had problems playing the
game with the correct controls!

In protest, and since I've recently learned way more about Asteroids
than I ever wanted to know, I've patched it to play in an UNMODIFIED
AD cabinet. This can be thought of as a revision to Doug Jefferys'
AtoAD adapter article of yar.

I have not adjusted the self-test routine (or check byte(s)), mainly
because I haven't had time to track it/them down), therefore, the test
REPORTS ROM ERRORS. Anyone who knows where it is, feel free to chime in,
or someday I'll get some time to look for it.

Thanks to Neil for his sliceable, diceable, relocatable, not only that
but it's a dessert topping AND a floor polish version of the Asteroids code base.

*************************************************************************

Patch for Asteroids to run in an unmodified Asteroids Deluxe cabinet.

Apply the changes to the files specified at the address(es) specified.
If, for some reason, you find a different "OLD" value at an address,
you may be looking at the wrong rom or a different version of the code,
either way, you should stop and correct your problem before proceeding.
See my other msg regarding the Asteroids rom files and readme file.

As always, it worked for me, but use at your own risk, blah, blah, blah.

If you have any problems, feel free to email the list.

Bug reports & comments can be sent to me at shostak@cinelabs.com .

File Addr Old New
--------- ---- --- ---
035143-02 296 00 02 Coin

035144-02 087 07 06 Game play
035144-02 090 06 07 Game play

035145-02 0b7 03 01 P.1 Start
035145-02 0c0 04 00 P.2 Start
035145-02 641 07 06 HS Entry (for the truly anal)
035145-02 64a 06 07 HS Entry (for the truly anal)

Last revised 12/08/2002

Have fun.

-Mark

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Received on Mon Dec 9 09:49:47 2002