Re: ROM Dump of Amiga Keyboard controller

From: Gerrit Heitsch <>
Date: Mon, 21 Jul 2014 19:13:35 +0200
Message-ID: <>
On 07/21/2014 07:59 AM, Jim Brain wrote:
> On 7/19/2014 3:42 AM, Gerrit Heitsch wrote:
>> I get the strangest ideas while at the public pool doing laps...
>> Now that we have the ROM of the 6500/1 in the VC-1520 dumped,
>> disassembled and analyzed, shouldn't it be 'relatively' easy (*) to
>> build a 100% compatible replacement using one of the Atmel Atmega with
>> enough I/O pins? The Atmega16 comes to mind here. 16 KB flash and 1 KB
>> RAM should be more than enough. The pinout is different, but that
>> would be a purely mechanical problem.
>> (*) for people who know that controller well enough
>>  Gerrit
>>       Message was sent through the cbm-hackers mailing list
> I am sure it's not a huge challenge, but what other cool features should
> the 1520 have :-)  That would seem to be a question worth considering?

Hm, I could see someone using a properly programmed Atmega16 in a 
VIC-1520 to be able to use it again. But I'm not sure if additional 
commands would be useful. Even if someone is still using a 1520 in a 
production environment, the software would only know about the original 
command set and font.

And for demonstration purposes on an exhibition, the original commands 
are good enough.


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Received on 2014-07-21 18:00:02

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