A language-agnostic JSON-encoded instruction-by-instruction test suite for the 8088, 68000, 65816, 65[c]02 and SPC700 that includes bus activity.

An emulator for various m68k and z80 based computers, written in Rust. Currently it has support for the Sega Genesis, TRS-80, and Computie (my own project), with Macintosh support in the works

A collection of development tools targetting SEGA's SVP chip found in the Mega Drive/Genesis version of Virtua Racing.

The “Quite OK Image Format” for fast, lossless image compression