Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!cs.utexas.edu!uunet!sco!brianm
From: brianm@sco.COM (Brian Moffet)
Newsgroups: comp.sys.amiga.tech
Subject: Reading AT type 720K disks
Message-ID: <3963@scolex.sco.COM>
Date: 1 Dec 89 05:05:11 GMT
Sender: news@sco.COM
Reply-To: brianm@sco.COM (Brian Moffet)
Organization: The Santa Cruz Operation, Inc.
Lines: 25



I would like to read an PC type 720K diskette on my amiga.
It does not have a DOS filesystem on it, rather just has data.
How would I go about reading this data off onto my hard disk?

I can't seem to figure it out using the trackdisk.device,
as I am not sure of the format of the data on the disk.
Do I use TD_RAWREAD?  If so, how do I decode the bit patterns?
I though MFM was high bit for a change in the bits, low for no change.

I have a program to read and write to the Amiga floppy (880K)
without going through the filesystem, but I would really like to
be able to read 720K cpio archives from the Unix machines at work.
(386 machines).

Any help is greatly appreciated.  I know it can be done, as PcC720
works.  I just need the low level, without the MS-DOS filesystem
format stuff.

If I get it working, I'll post a sample.

thanks in advance.

brian m