What is Macintosh 68000 Development System?

Programming the Macintosh in assembly language is not a simple task. It requires detailed and thorough knowledge of the Macintosh. The Inside Macintosh manual provides all the technical information programmers need to create Macintosh applications. In places this manual assumes you are familiar with certain aspects of the Macintosh. Please refer to Inside Macintosh when you come across such passages. 

To help you launch your Macintosh programming career, this development system contains an application that displays a menu bar and a window, and lets you edit within the window. A listing of the program, called Window, is in an appendix; the source for the program is on disk. The importance of this program cannot be over-stressed. It shows how to initialize and use Macintosh ROM routines, how to support desk accessories from your application, and how to support multiple windows from an application. Sample desk accessories are also on the disk.

The Macintosh 68000 Development System includes two disks, named MDS1 and MDS2. These disks contain a host of useful applications and files. To acquaint you with the Macintosh 68000 Development System, these files are described below. MDS1 is the disk that should be placed in the built-in drive when you start up the development system. In general it contains the main applications provided with the system.

• Edit is the Editor. It is the application with which you enter Assembler, Linker, Exec, and RMaker source files. 
• Asm is the Assembler. It translates assembly-language source files into relocatable modules that can be linked together into one application.
• Link is the Linker. It connects modules produced by the Assembler together into one application.
• Exec is the Executive. It automates and integrates assembling, linking, and the adding of resources to your application.
• RMaker is the Resource Compiler. It uses the instructions in a text file to create a resource file. 
• PackSyms is an application that converts a symbol file into a packed symbol file. The use of packed symbol files saves memory, time, and disk space. 
• MacDB Nubs is a folder. It contains small programs (Nubs) that should be run on the same Macintosh as the program being debugged. 
• System Folder and Empty Folder contain their usual files.

MDS2 contains debuggers, sample programs, and useful definition files.

• Debuggers is a folder that contains several Debuggers, providing various levels of assembly-language debugging tools 
• Sample Programs is a folder that contains a sample program, some sample desk accessories, a sample window definition procedure, and their associated files. An example given later in this chapter uses files from this folder. 
• Trap Files is a folder. The files in this folder assign trap numbers to trap names. These trap names and numbers are listed in an appendix. The traps are described in Inside Macintosh. 
• Equ Files is a folder. The files in this folder assign values to the constants and absolute memory locations used by the system. These constants are described in Inside Macintosh, and can help you avoid using incorrect values in your application.
• .D Files is a folder that contains packed versions of the files in the Trap Files and Equ Files folders. These are the files you will probably use with your application.
• Empty Folder is devoid of the usual files.

Apple Computer, Inc. (1984). The Macintosh 68000 Development System User's Guide. (pgs. 3-5). Cupertino, CA.

---

Disk images are in dc42 and DART format. Works with emulators and Floppy Emu.

From the VintageMicros collection.

Download Macintosh 68000 Development System for Mac

Architecture

Motorola 68K

System Requirements

From Mac OS 1.0 up to Mac OS 5.0

Compatibility notes

• Macintosh 128K

Emulating this? It could probably run under: Mini vMac