Path: utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!gatech!purdue!haven!umd5!brett From: brett@umd5.umd.edu (Brett Bourbin) Newsgroups: comp.sys.atari.8bit Subject: Re: Disk Operating Systems Message-ID: <5074@umd5.umd.edu> Date: 6 Jul 89 13:43:49 GMT References: <115200034@uxa.cso.uiuc.edu> <1790@zaphod.axion.bt.co.uk> <10134@dasys1.UUCP> Reply-To: brett@umd5.umd.edu (Brett Bourbin) Organization: University of Maryland, College Park Lines: 30 In article <10134@dasys1.UUCP> andrewh@dasys1.UUCP (andrew huie) writes: >"Inside Atari Dos" is compiled by Bill Wilkinson. The publisher is Compute! >Books, a division of Small System Services, Inc. The ISBN number is: >0-942386-02-7. It deals with how DOS.SYS works, its most important routines, >and how a disk is set up. Note that there is an error in how a sector in a >file is set up, if I remember correctly, the byte which says how many data >bytes in a sector is 127, not 125 (bytes go from 0-127 for a single density >disk). The book also contains the source code for DOS.SYS and DUP.SYS. ^^^^^^^^ No, this book _DOESN'T_ contain the source to the DUP.SYS. Andrew was right about the author of work. Bill worked for the company that was contracted to write the DOS for that Atari, OSS (I don't remember if it was called that at the time, though), and they still had the rights to the source. Later this same company came out with other DOS' for the Atari that did not have some of the limitations Atari, Inc. set for the original DOS. The DUP.SYS was Atari's own software and therefore not included in that book. Atari DID release the source to it though, as they did the source to the OS in the technical reference volumes. I have these volumes if you would care to talk. >andrew huie ( andrewh@dasys1.UUCP ) -- --Brett S Bourbin, Instructional Computing Programs -- Univ of Maryland Computer Science Center, College Park, MD 20742 INTERNET: brett@umd5.umd.edu BIX: brettb DELPHI: brettb