Re: ROM Dump of Amiga Keyboard controller

From: Kajtár Zsolt <soci_at_c64.rulez.org>
Date: Fri, 27 Jun 2014 01:15:54 +0100
Message-ID: <53ACB7BA.9070602@c64.rulez.org>
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> As before, I still don't have a clear picture of how exactly is this 
> supposed to work. Either this or the (presumably simpler) approach with 
> an EPROM and a 4040. I think I am not alone in this and that is one of 
> the reasons nobody (including myself) haven't done it yet.

It works the same way as the EPROW+counter approach. Except that the external
6502 is the "counter" for addressing the EPROM. Which has the benefit of
inserting dummy fetches automatically to the bus when needed. This way you
could use any assembler/monitor to produce the code for the EPROM, without
tricks. And this 6502 could be used for the communication with the 6500/1 to
dump it's content too.

- -- 
						    -soci-
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Received on 2014-06-27 01:00:02

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