Re: R-DOS (REX DOS??) on an oceanic 1541 clone drive

From: Gerrit Heitsch <>
Date: Wed, 08 Oct 2014 17:08:34 +0200
Message-ID: <>
On 10/07/2014 11:58 PM, Julian Perry wrote:
> Gerrit
>> VSP problems have been linked to the VIC. So maybe your old 6569R1 is
>> not affected by it?
> Not sure. I DO know that I fixed VSP problems in my main 250407
> machine by replacing the RAM.

Well, that might work too since RAM from a different maker, speed or 
even a different batch might behave differently. A few ns can make the 
difference between 'works' and 'crashes'.

With some extra logic you could also use an SRAM in your C64 and hope to 
get around the issue that way...


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Received on 2014-10-08 16:01:06

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