Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!ucbvax!LUCID.COM!lnz
From: lnz@LUCID.COM (Leonard N. Zubkoff)
Newsgroups: comp.sys.apollo
Subject: Re:  Reading PC floppies on Apollos
Message-ID: <8902190215.AA00586@atlantis>
Date: 19 Feb 89 02:15:31 GMT
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The Internet
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The problem with reading PC formatted floppies on the Apollo is that, at least
when I last asked Apollo, the Apollo device driver will only deal with 1024
byte sectors on the floppy, which is what DOmain/OS needs.  Unfortunately, the
PC world is based on 512 byte sectors.  Thus one would need a special device
driver that talked to the disk controller directly in order to read PC floppies.

If you merely need to be able to transfer data between a PC/AT and an Apollo,
that I can help with.  If you format the floppy on the Apollo, giving 1024
byte sectors, it can then be accessed by the Apollo and by a PC running a
program that accesses the BIOS directly to do floppy I/O.  I have a simple
program which just treats the floppy as a dumb tape drive and dumps files
onto it and can read them back; it works both on the Apollo and PC.

		Leonard