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-
- A D V E R T I S E M E N T
- -------------------------
-
- ZSDOS PROGRAMMER'S MANUAL NOW AVAILABLE
- 17 September 90
-
-
- If you are using a CP/M 2.2 machine and have not yet taken advan-
- tage of ZSDOS, you are missing out on one of the most exciting
- developments the CP/M world has seen in recent years. ZSDOS
- replaces the BDOS (Basic Disk Operating System) of CP/M 2.2,
- adding many features "left out" of CP/M 2.2, including:
-
- - file datestamping (built-in or modular)
-
- - Public and Path file access
-
- - automatic login of changed diskettes
-
- - Fast Relog of fixed disks
-
- ZSDOS is also more efficient than original CP/M, and corrects all
- known flaws in the BDOS portion of that disk operating system.
- The ZSDOS package costs $75 (less if you currently own ZRDOS
- and/or your user's group is part of Z-Plan), features menu-
- driven, user-friendly installation, is compatible with any
- standard CP/M 2.2 system, and includes real time clock support
- for over forty computer brands. It also includes a 150-page
- User's Manual and twenty-three programs to help you get the most
- from your new operating system. For more information on ZSDOS,
- contact one of the agents listed at the end of this file, or see
- the file ZSDOS.AD being distributed over CP/M bulletin boards.
-
- Our original intention of publishing the ZSDOS Programmer's
- Manual as part of the ZSDOS User's Manual was scratched when we
- discovered that together the two manuals amounted to over 200
- pages of text. Rather than raise the purchase cost of ZSDOS or
- remove sections from the manuals, we decided to offer the
- Programmer's Manual as a supplement soon after the release of
- ZSDOS 1.0. Well, that was nearly two years ago. We don't
- pretend that we spent ALL of that time drafting the Programmer's
- Manual, but a good deal of care has gone into checking and re-
- checking the text for completeness, clarity, and accuracy. If
- you are programming for the ZSDOS environment, you will find this
- manual essential. If you are using ZSDOS you may want to obtain
- the Programmer's Manual as a further source of technical data.
- And even if you do not currently own ZSDOS, you may want to
- obtain this manual for the wealth of general information it
- includes about CP/M protocols.
-
-
- W H A T Y O U G E T
- -----------------------
-
- The ZSDOS Programmer's Manual includes:
-
- - 2 page Table of Contents;
-
- - 59 pages of text, diagrams, and tables, including in-depth
- coverage of BDOS functions, ZSDOS data structures, ZSDOS
- programming conventions, and ZSDOS function calls;
-
- - four Quick Reference pages detailing ZSDOS and CP/M BIOS
- function numbers, input parameters, and returned values;
-
- - 3 page Index with over 200 entries.
-
- The manual is printed in the convenient 8.5 x 5.5 inch form
- factor using multiple proportional fonts and line graphics
- wherever possible for clarity and attractiveness. It comes with
- a heavy cardstock cover and is pre-punched for use with standard
- "IBM" style documentation binders.
-
- The 59 pages of text include a complete description of the ZSDOS
- interface and much previously unavailable "inside" information on
- the design and operation of CP/M 2.2. ZSDOS data structures such
- as the File Control Block and Directory Record are described in
- detail with attention to distinctions between the different vari-
- eties of CP/M BDOS replacements now in use. Extensive coverage
- of ZSDOS programming conventions includes complete details on
- reentrant ZSDOS calls, the Error Vector table, the Path and Wheel
- addresses, the Flags configuration byte, date vectors, and time
- and date support routines. Descriptions of ZSDOS function calls
- present the system interface in highly readable form, and offer
- many timesaving programming notes and cross-references to other
- BDOS functions. In addition, each function description includes
- a Z80 code fragment illustrating typical usage of the particular
- function.
-
- In short, we feel that we have put together what will become an
- "essential" reference piece not only for ZSDOS programmers, but
- for CP/M programmers in general. And while this manual is not
- intended as a complete tutorial on the CP/M operating system or
- assembly language, it is written in a style that makes much of
- the information accessible even to those without a programming
- background.
-
-
- T H E P R I C E Y O U M U S T P A Y
- -------------------------------------------
-
- In support of ZSDOS and CP/M programmers everywhere, this 68-page
- ZSDOS Programmer's Manual is available for only $10, postpaid,
- from:
-
- Carson Wilson
- "Coauthor of ZSDOS, Author of ZDE, Sysop of Antelope Freeway"
- 1359 W. Greenleaf, #1D
- Chicago, IL 60626
- modem: Antelope Freeway RAS, 312/764-5162, Chicago
-
- Plu*Perfect Systems
- "Plu*Perfect Systems==World Class Software"
- 410 23rd St.
- Santa Monica, CA 90402
- voice phone: 213/393-6105 (evenings)
-
- Sage Microsystems East
- "Selling and Supporting the Best in 8-bit Software"
- 1435 Centre St.
- Newton Centre, MA 02159-2469
- modem: 617/965-7259
- voice phone: 617/965-3552 (9:00am - 11:30pm)
-
-
- Order your copy today, while supplies last!