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Date   : Sun, 05 Nov 1989 15:19:04 GMT
From   : cs.utexas.edu!usc!sdsu!crash!mwilson@tut.cis.ohio-state.edu (Marc Wilson)
Subject: on the other side of the floppy ...

In article <1553@crdos1.crd.ge.COM> davidsen@crdos1.UUCP (bill davidsen)
writes:

>  I have never heard of anything like this... a BIOS which understands
>double sided disks at all uses both sides of the disk all the time. One
>logical track goes on one side, one on the other. I *did* have a BIOS
>which treated the two sides as separate drives (C: and D:) but that was
>a BIOS I wrote myself from scratch and which had a special purpose.

     There are some CP/M BIOSes that treat the second side of the disk as
an extension of the first... i.e. as a track with twice the # of sectors.

     CCS BIOS for their 2422 S-100 disk controlr is like this.
-- 
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Marc Wilson
     ARPA: ...!crash!mwilson@nosc.mil
           ...!crash!pnet01!pro-sol!mwilson@nosc.mil
     UUCP: [ cbosgd | hp-sdd!hplabs | sdcsvax | nosc ]!crash!mwilson
     INET: mwilson@crash.CTS.COM
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