Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.2 9/18/84; site burl.UUCP Path: utzoo!watmath!clyde!burl!egb From: egb@burl.UUCP (egb) Newsgroups: net.micro.cpm Subject: Re: Xerox 820-I micro documentation Message-ID: <763@burl.UUCP> Date: Sat, 29-Jun-85 12:20:43 EDT Article-I.D.: burl.763 Posted: Sat Jun 29 12:20:43 1985 Date-Received: Sun, 30-Jun-85 00:43:41 EDT References: <1928@ukma.UUCP> Distribution: na Organization: AT&T Technologies, Burlington NC Lines: 40 > > Does anyone know where I can get some documentation for a > Xerox 820-I microcomputer? Is there a user's group for these > things? > > Steve Ferry > ukma!steve@anl-mcs.arpa Steve Ferry: All the information you want is in a book for $25.00 by XEROX called: 820 INFORMATION PROCESSOR SOFTWARE DEVELOPMENT GUIDE It is misnamed, because it includes all of the hardware logic diagrams and the software code for the two different versions of the monitor EPROMs and how to interface with the monitor in application programs. The CP/M interfaces with the monitor EPROMs for I/O, and these monitors are similar to the old APPLE MONITOR or ZAPPLE MONITOR. Xerox has an outfit that handles the distribution of these manuals, but I'm sorry to say I discarded the 800-telno and name after acquiring my copy of the document. The check was made out to "XEROX Inventory." I suggest you call or write: Xerox Corporation 1341 West Mockingbird Lane Dallas, Texas 75247 which is the address given on the back page of the "Software Development Guide." Good luck, Ed Baldwin, Burlington, N.C. ihnp4!burl!egb