This file demonstrates a grab-bag of utility code I wrote recently. The library includes two versions of Burtle's small noncryptographic PRNG, PSG code, sprite code, a timer, and a a Z-text decoder, among other things.
Largely, this is code that I kept writing for several projects -- or code that I wanted to write but hadn't gotten around to, yet. I consolidated these little odds and ends because I tend to use them a lot but want them all in one place.
The repo is https://github.com/bobbyjim/x16-c-tools