Commodore VIC20 part 2/2 – Building and testing the diagnostics test harness

This video is now available as early and ad-free access on Support me on Patreon to get ad-free/early access to all videos, plus other perks. Part 2/2. This video is about the Commodore VIC 20 8-bit machine from the early 80’s. In this part I build […]

VIC 20 diagnostics harness

Next and final part of the VIC 20 video will be about building the Commodore VIC 20 diagnostics harness. This was designed by Sven Petersen. It is used for testing the various ports on the VIC 20 with the diagnostics test cartridge that I built in part 1. […]