24 Bit Pseudo CPLD Using An Arduino Uno - Next Stop 64 Bits - Proof Of Concept - Simply Put

From a channel Lumen includes in full: Simply Put, a self-taught educator, builds digital and analog circuits from first principles (clock pulses, DACs, logic chips, microcontroller I/O) and demonstrates each one working on the bench.

A 9-minute video from Simply Put's catalogue; the title names its topic.

Video by Simply Put, played through YouTube's embedded player.