'Abacus copy protection'
Author:schweppes (registered user: 4 posts )
Date: Thu, Sep 15th, 2011 @ 11:46 ( . )

FOUND IT: the protection uses error 21 on track 36!

This one works as expected:

See the [D64[ section of TOSEC and look out for a file named
'Basic 64 Compiler v1.03 (1984)(Data Becker).zip'

If you open the D64 with a BAM editor, the complete track 36 is covered with error 21.

Is it far fetched to guess this was the protection used on ALL Abacus / Data Becker titles of 1984?

Note that the loader in there mentions CADPAK-64 and CHARTPAK-64...


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Replies:
--* Abacus copy protection
9/15/2011 @ 13:11--schweppes
9/15/2011 @ 14:03----Pete Rittwage

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