Re: 8050 ROM dump

From: Jim Brain <>
Date: Thu, 14 Apr 2011 11:14:18 -0500
Message-ID: <>
On Thu, April 14, 2011 10:05 am, Steve Gray wrote:
> This doesn't seem right. Surely commodore used EPROMs while developing the
> drives, before they made masked roms. Perhaps it's a matter of selecting
> the correct speed EPROM? Afaik the two CPUs don't access the same rom
> anyway. I'm sure I've seen drives with EPROMs direct from commodore.

The user contacted me to state that he was able to rig up a way to read
the 2364 onto his programmer.  He notes the code is substantially
different from the Zimmers ROMs.  I don't have a copy yet, so I cannot
verify this information (yes, it is possible he messed up the wiring on
his reader interface, but I can't confirm either way).

He notes he cannot continue working on it this week, but will try next
week or so.  I will keep the group updated.


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Received on 2011-04-14 17:00:26

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