Re: Transfer a 8250 diskette

From: Gerrit Heitsch <>
Date: Sat, 12 Nov 2011 22:05:00 +0100
Message-ID: <>
On 11/12/2011 07:07 AM, William Levak wrote:

> The save with replace bug existed in ALL versions of Commodore DOS up to
> 1541-II. You can copy the contents of the 1541-II ROM into EPROMs and
> put them in older 1541s. I have done that on mine, and they work fine.

How did you do that? Using the standard 2764->2364-Adapter or were you 
able to find the fabled EPROMs that directly fit into the sockets?

More than once I thought about doing the same. But with a single 27C128 
in an adapter in one of the sockets, a diode AND gate for the _CS 
signals and stealing the missing address line A12 from the CPU. So far I 
have been too lazy to do it though.


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Received on 2011-11-12 22:00:21

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