Impulse Tracker

This was originally released on BitBucket in 2014 alongside an article series titled "20 years of Impulse Tracker", but BitBucket sunset mercurial repositories, and so this is now made available on GitHub. First Article Second Article Third Article Fourth Article Note that this repository is purely sharing what used to be -- there is no active development, and changes/fixes will not be merged other than issues preventing build. To build Impulse Tracker, you will need: Turbo Assembler v4.1 Turbo Link v3.01 Borland MAKE v4.0 A DOS environment Once you have these, building IT.EXE should be just a single call to MAKE Sound drivers are build individually via M .BAT files inside the SoundDrivers subdirectory A: Simply because I didn't know about them at the time. I wish I did. There's a InternalDocumentation folder that I've included in the repository that details what some of the magic numbers appearing through the code might mean. Q: "Flow in some functions seems to jump all over the place. Why?" A: The original code was compatible all the way back to an 8086 machine. 8086 would allow you to do conditional jumps only within +/-128 bytes, so I spent too much time shuffling code around to meet this restriction. When I shifted away from this 8086 restriction, I never went back to update the code that was mutilated by it.