Following the model of Eric Shepherd’s “Some Assembly Required: Hello World” article on A2Central, I’d like to present the traditional “Hello World” program for 8-bit Apple II using the Mindcraft Assembler. Slide the Assembler disk into your drive or run the BOOT.SYSTEM program. Press “E” to enter the editor. Press “enter” once to get a “!” [...]
Apple IIgs development with MPW – Setup
The Apple IIgs is a great platform for software development. Compared to 8-bit Apple II machines, the IIgs offers a faster processor, more memory, higher resolution video, and a more modern desktop graphical user interface (GUI). The operating system, GS/OS, offers features found in modern desktop operating systems, such as a relocating system loader, dynamic [...]
Low-Res Life for the Apple II
Wikipedia gives more details, including examples, a more formal definition of the game, and history. I have implemented the game of life for the Apple II computer using the low-resolution (40×40) video mode and the Macrosoft macro language. Macrosoft is a library of assembler macros that produce assembly language code. I chose this language because [...]
B-tree page still exists
My (old) page on b-trees is still here, unchanged. One of these days, I’ll update the page and incorporate numerous comments.