Need information on TRSDOS 1.3 internals

From: Fred Cisin <>
Date: Wed Dec 4 23:57:00 2002

On Wed, 4 Dec 2002, Sellam Ismail wrote:
> Does anyone have any documentation on the data structures of TRSDOS 1.3?
> Specifically, I'd like to know the catalog structure, as well as the
> scheme for storing files across multiple sectors.
> I'm trying to pull some old word processor and perhaps spreadsheet files
> off some TRSDOS disks using a PC. I already found a utility called
> READDISK that reads TRS-80 disks on a PC and it worked great. Now I need
> to extract the files from the image.
> Is this data published in any of the TRS-80 DOS manuals?

The book that you need is "TRS-80 Disk and other Mysteries" by
H.C. Pennington.
My copy is inaccessible to me until Monday. (in my office at the college)

The program that you need is "Hypercross"? or "PCXZap"? by Mike Gingel

I'm giving final exams next week, so my schedule is a bit screwed up; If
you need help, I'll try to work it in.

Fred Cisin            
PO Box 1236                     (510) 558-9366
Berkeley, CA 94701-1236
Received on Wed Dec 04 2002 - 23:57:00 GMT

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