Bill Budge has posted to github the source code to his seminal hit Pinball Construction Set, according to this Y-Combinator item.  Some sharp eyes in the comments thread noticed that although the code is for the Atari 800 version of the program, it was developed on an Apple II, a common practice in those days and made easy by the fact that both platforms use a 6502 processor.  According to one of Bill’s recent tweets: “The Atari 800 had a raster mode that was very similar to the Apple II Hi-res graphics. The code had minimal differences.”


Bill has also tweeted that he intends to go through and comment the code, which you can find here.

(HT: Sean Fahey, image source: The Digital Antiquarian)

Mike is the editor-in-chief of A2Central, as well as a blogger and rescuer of classic manuals and books.