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Date   : Fri, 08 Jul 1988 20:59:39 GMT
From   : young@ee.ecn.purdue.edu (Mike Young)
Subject: CBIOS & format for Xerox 820-1 w/double dens mod

       Greetings!

       I have a Xerox 820-1 I'm trying to upgrade to double
density, using the WD 2793 controller (yes, and the Emerald Microware
upgrade kit). It runs CP/M 2.2, and does it very nicely. It occurs 
to me that I will need a format program to handle
double density. I could write one, but if someone else has invented this
particular wheel, why should I? :-)

       In addition, the CBIOS will also need to know how to select the
proper density, keep track of who's double and who's single at any given
moment, etc. (this particular system will have 2 to 4  5 1/4" DSDD drives
on it, and I need to do a LOT of single -> double copying)
I suspect someone's already addressed this task, and again I don't see
the need to dig into the beast if it's already been done, so....

       Any comments?


                                       -Mike Young
                                               young@eg.ecn.purdue.edu
                                               ..!pur-ee!young

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