RE: Similarity between 1540 and 2031

Oops, I completey forgot about that. I think I'm getting old :)

-----Oorspronkelijk bericht-----
Van: owner-cbm-hackers@musoftware.de [mailto:owner-cbm-hackers@musoftware.de] Namens Spiro Trikaliotis
Verzonden: zaterdag 2 december 2017 14:40
Aan: cbm-hackers ML
Onderwerp: Re: Similarity between 1540 and 2031

Hello Ruud,

* On Sat, Dec 02, 2017 at 09:48:01AM +0000 Baltissen, GJPAA (Ruud) wrote:
 
> Just a know how. After building the 1541IDE, one of my ideas was to 
> build the 2031IDE. Reason: the hardware and software have lots in 
> common. We all know that both the ROMs of both system are different. 
> Yesterday evening I noticed something funny: except for the very first 
> byte, which is the checksum, I could use the source code of the 1540 for the $C000/$DFFF part of the 2031 as well.

I already noted this when I created my 2031/1540/1541/1570/1571 disassembly, and I think I noted this on this very mailing list. The differences in the $C000-$DFFF part are all because of the moved functions in the $E000-$FFFF part.

Regards,
Spiro.

--
Spiro R. Trikaliotis
http://www.trikaliotis.net/


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