[comp.os.cpm] Utility to look at CP/M files

swooldri@orion.cf.uci.edu (Steve Wooldridge) (08/14/89)

Earlier, I posted a note inquiring about availability of programs to
read CP/M files on an MS-DOS machine. I received several invaluable
responses. Now my problem is this: I had one diskette I was trying to
read from CP/M and write to MS-DOS format. The package I was using
(Xeno-Write) was unable to do this. When using a global search request
(*.*) to read all files, it scrolled segments of a file on the screen.

I am suspicious that the file was accidentally erased (if not, then the disk
is damaged) and that the program was looking for the file address which
was not there.

Do there exist programs like Norton Utilities for the CP/M operating system? 
If so, I can look at the file and see if anything can be retrieved.

Thanks in advance for any advice which might be rendered.

Please respond directly to my internet address (but also feel free to post
to the COMP.OS.CPM Usenet board.

Steve Wooldridge
University of California, Irvine
Tel. 714.856.8380

mlewis@unocss.UUCP (Marcus S. Lewis) (08/16/89)

From article <2505@orion.cf.uci.edu>, by swooldri@orion.cf.uci.edu (Steve Wooldridge):
.... 
> Do there exist programs like Norton Utilities for the CP/M operating system? 
> If so, I can look at the file and see if anything can be retrieved.

Check out DU-V80.  THis is a PD absolute disk sector editor.  I have run it
on at least three different machines, and it seems to be very good, as long
as you know what you are doing.  You need to know the directory layout, and
how to read control blocks and such, but it's pretty slick.
You can edit in ASCII or hex at a minimum.  It won't follow the sector 
allocation sequence, you have to do that yourself.  Simtel20 ought to have it,
but I couldn't tell you where it might be.  I think it should be available
on all CP/M BBS's.

Good Luck
Marc


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dbraun@cadev4.intel.com (Doug Braun ~) (08/22/89)

Does anyone know if there is a version of the DU-type programs that
works with CP/M 3?  (Thanks, Bob Haar).  The program DUU, which I
have used for a long time on CP/M 2.2 crashes on 3.0 because
the 3.0 BIOS disk routines handle physical sector sizes larger
than 128 bytes directly.



Doug Braun				Intel Corp CAD
					408 765-4279

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