Re: Commodore "Most Wanted" List

From: A.Fachat <>
Date: Wed, 02 May 2012 15:27:42 +0200
Message-ID: <>
I have implemented hd floppies with basically a 1581 setup. Not even sure I needed a 2mhz 6502. Overclocked the 1770 though. 

Details are on my cs/a computer web page.

Diese Nachricht wurde von meinem Android-Mobiltelefon mit K-9 Mail gesendet.

"Michał Pleban" <> schrieb:

didier derny wrote:

> it may be a problem of speed, on a standard floppy 3 1/2 floppy as far
> as I can remember, we have 13 or 14 microseconds
> to transfer the data. with a HD it's probably faster and probably why a
> dma is needed.

As far as I remember, in Amiga HD drives they simply slowed down disk 
rotation by half, so that the data arrives at the same speed. Similar 
technique could be used here.


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