See https://eater.net/bbcpu8-control-logic for more. In this video we use two EEPROMs to translate the instruction cycle ring counter and the contents of the instruction register to the correct control signals for each microinstruction. At the end of the video, we run the first full program! Support me on Patreon: https://www.patreon.com/beneater https://www.eater.net https://twitter.com/ben_eater https://www.patreon.com/beneater