DOS 3.3 ANATOMY - REFERENCES Command Handlers can be found in the CMDS folder. Function Handlers can be found in the FN folder. Everything else can be found in the MISC folder. This text file series of 'DOS 3.3 Anatomy could not have been completed without review and use of several excellent references. Because DOS 3.3 utilizes monitor ROM ($F800-$FFFF) and is designed to support the Applesoft language ($D000-$F7FF), a diverse array of sources were consulted. Some, but not all, of the references and sources used are listed below. Apple Computer, Inc. 1979. Apple II Reference Manual. Apple Computer Inc. Cupertino, California. ----------. 1980. The DOS Manual: Disk Operating System. Apple Computer Inc. Cupertino, California. ----------. 1981. Apple II Monitors Peeled. Apple Computer Inc. Cupertino, California. ----------. 1984. The Apple II Reference Manual. Volumes 1 and 2. Apple Computer Inc. Cupertino, California. ----------. 1985. Apple IIe Technical Reference Manual. Apple Computer Inc. Cupertino, California. ----------. 1985. Apple IIc Reference Manual. Apple Computer Inc. Cupertino, California. Apple PugetSound Program Library Exchange. 1981. Call-A.P.P.L.E. In Depth (1): All About Applesoft. A Call-A.P.P.L.E. Extra. Apple PugetSound Program Library Exchange, Renton, Washington. - Should be required reading for any Applesoft BASIC programmer. (Apple PugetSound Program Library Exchange has since changed its name to A.P.P.L.E. CO-OP). ---------. 1981. Call-A.P.P.L.E. In Depth (3): All About DOS. A Call-A.P.P.L.E. Extra. Apple PugetSound Program Library Exchange, Renton, Washington. - Like the previous reference listed, this book lives up to its name. Although some of the articles are now dated, this reference is still very useful. Bredon, Glen. 1984. MERLIN: The Macro Assembler for the Apple. Roger Wagner Publishing, Inc. Santee, California. - A high quality 6502 assembler. - Contains a utility and a series of text files for producing a commented source code listing of Applesoft BASIC. Cavallari, Ford. 1982. MICRO on the Apple Vol. 3 (DOS 3.3) MICRO Ink, Inc. Chelm, Massachusetts. East, M.L. and F.B. East. 1985. Programmers' Handbook of Computer Printer Commands. Cardinal Point Incorporated. Ellettsville, Indiana. ----------. 1986. Programmers' Handbook of Computer Printer Commands-II. Cardinal Point Incorporated. Ellettsville, Indiana. Luebbert, W. F. 1981. What's Where in the Apple: A Complete Guide to the Apple Computer for the Apple II, Apple II Plus & Apple IIe. Including: the Atlas & the Gazetteer. MICRO Ink, Inc. Chelmsford, Massachusetts. - Should be in every BASIC and assembly language programmer's library. Mossberg, S. 1983. Disassembly Lines Volume I. MicroSPARC, Inc. Concord, Massachusetts. ----------. 1984. Disassembly Lines Volume II. MicroSPARC, Inc. Concord, Massachusetts. - Both this and the previous reference are a compendium of articles published in Nibble magazine (MicroSPARC Inc.) under the byline of "Disassembly Lines". - These articles represent a linear disassembly of most routines in DOS 3.3. In addition, sections of Applesoft are also disassembled. In keeping with the Mossberg tradition, these references are of very high quality. As usual, Mossberg continues to amaze and reveal. Sather, J. 1983. Understanding the Apple II. Quality Software. Chatsworth, California. - Mainly a hardware/firmware manual that should appeal to those knowledgeable in electronics. Lesser mortals may find some sections difficult to comprehend. However, most assembly language programmers should be able to understand the sections related to the DOS 3.3 operating system. These sections contain information that can easily be translated into protection techniques such as half- and quarter-tracking. S-C Software Corporation. 1980. Apple Assembly Line. S-C Software Corporation. Dallas, Texas. - A newsletter dedicated to the assembly language programmer. - Contains all kinds of information on programming techniques and the DOS 3.3 and PRODOS operating systems. A high quality publication that should be in the library of any 6502 assembly language programmer. ----------. 1982. S-C Docu-Mentor for Applesoft. S-C Software Corporation. Dallas, Texas. - Heavily commented Applesoft source code on a disk. SoftKey Publishing. 1981. Hardcore Computist. Softkey Publishing. Tacoma, Washington. (This magazine has undergone several name changes since its inception.) - AN old classic (now-defunct) magazine, provides detailed protection techniques and trick DOS. Dedicated assembly language programmers may find some articles frustrating because many programs appear to be geared toward users who want to copy protected disks by using a recipe consisting of machine language embedded in Applesoft programs. Because the machine code is often housed in data statements, it is frequently necessary to disassemble the machine code and reformat the BASIC programs in order to understand the techniques being used. Less use of decimal machine code and more use of assembly language would prove useful to assembly language programmers that aren't into copying disks but are instead interested in programming techniques related to protection. This publication carries information not available elsewhere. Wagner, R. 1982. Assembly Lines: The Book. A Beginner's Guide to 6502 Programming on the Apple II. Softalk Publishing. Hollywood, California. - One of the few books that provides a good introduction to assembly language for novice programmers but at the same time is a valuable reference for the more experienced programmer. Elementary techniques for accessing DOS from assembly language are described. - This reference is now available from Penguin Software, Geneva, Illinois. Weisharr, T. ----. DOStalk. Softalk Publishing Incorporated. Hollywood, California. - A regular column that appeared in the now-defunct Softalk magazine. - Although remnants of this magazine are hard to find, two of its former columnists have teamed up to solve the problem. Kersey (of Beagle Brothers fame) and Weisharr have coauthored The DOStalk Scrapbook. This reference is apparently a polished up, reorganized version of their previous DOStalk articles. Recommended for anybody thats interested in DOS 3.3. The DOStalk Scrapbook is available from Tab Books, Blue Ridge Summit, Pennsylvania. ----------. 1985. Open-Apple. Overland Park, Kansas. - Newsletter designed to "fill one of the information voids left by Softalk's demise". A rare breed of publication that is not only down to earth and humurous, but more importantly, it consistently maintains a balance of topics that appeal to both novice programmers as well as professional software authors. Worth, D. and P. Lechner. 1981. Beneath Apple DOS. Quality Software. Reseda, California. - Best described as a true classic. - Should be in the library of any serious assembly language programmer using DOS 3.3. ----------. 1981. Bag of Tricks. Quality Software. Reseda, California. - Information contained in the instruction manual is was worth the price of the entire software package. Special thanks go to the following for source validation references, comments and interpretation; Windsor Scientific, Steve Wozniak and Glen Bredon.