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                                                                            :
Title:          : Asteroids patch to operate in an Asteroids Deluxe cabinet :
Version:        : 1.0                                                       :
Date:           : 08 December 2002                                          :
Author:         : Mark Shostak                                              :
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 Disclaimer  \                                                              :
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                                                                            :
REMEMBER, NO WARRANTEES, EXPRESS OR IMPLIED, ARE GIVEN.  USE THIS           :
INFORMATION AT YOUR OWN RISK.  I AM NOT RESPONSIBLE FOR ANY DAMAGES         :
THAT MAY OCCUR TO YOUR PERSON OR PROPERTY.                                  :
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 Background   \                                                             :
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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 yore.                                              :
                                                                            :
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.                                                                  :
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Any questions or problems with this modification should be directed to      :
the vectorlist. Have fun.                                                   :                                                                         
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 Modification Details  \                                                    :
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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.     :
This modification was made to the Revision 2 Asteroids ROMs.                :
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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)                        :
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