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Date   : Mon, 28 Apr 2003 19:53:33 +0100
From   : Roy Collett <roy@...>
Subject: Re: BBC Micro Games Copy Protection

In article <20030428145622.E3317FE822@...>, Richard_Talbot-
Watkins@... writes
>
>[BBC games protection]
>
> Here are my memories...
>
>  Disassembling !Boot first involved having to get past a
>self-modifying decrypter - not too hard but still challenging!

Not too hard! One of these little demons had me up until daybreak.

I remember giving up on one and cheating it with a timed interrupt.


Roy Collett  roy@...
New Southgate, London, England.
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