Re: Compressor/cruncher that works with PET/CBM 3032?

From: Anders Carlsson <*anders.carlsson_at_sfks.se*> Date: Mon, 7 Sep 2015 00:31:38 +0200 Message-ID: <C9F6DA8F75C14485AA5C413997D29C44@ZAPACASUS> · anders.carlsson_at_sfks.se

I wrote:

> I'm too tired and lazy to figure out the differences in the memory map to 
> make it work with BASIC 2 as well.

Haha! I solved it myself on second thought.

The differences are just a series of instructions in the decruncher:

BASIC 4:
JSR $B622
JSR $B5F0
JSR $B4B6
JMP $B74A

BASIC 2:
JSR $C5A7
JSR $C579
JSR $C442
JMP $C6C4

(courtesy of Derek Bush & Peter Holmes book on assembly programming with 
annotated ROM list)

Well, that would make it trivial to extend the patched Exomizer with yet 
another config...

Best regards

Anders Carlsson

       Message was sent through the cbm-hackers mailing list