and realized the simple schematic would allow him to recreate those classic VIC-20 cartridges using modern hardware. This project began by cracking open a few game cartridges to see what was inside.

Conveniently, all it took to set up a Forth development system was inserting the cartridge into the VIC-20 and powering it on, with the VIC-FORTH cartridge by [Tom Zimmer] being a popular choice ...