The Gigatron uses 5 chips for a 4bit ALU. It's one of the test layouts that I put in this perfboard layout program that I ened up making because trying to figu

The Gigatron uses 5 chips for a 4bit ALU. It's one of the test layouts that I put in this perfboard layout program that I ened up making because trying to figure out wiring on both sides at once in my head melted my brain. https://fingswotidun.com/PerfBoard/ https://fingswotidun.com/PerfBoard/ (Try the 4-bit ALU example) Of course I haven't yet verified it works because of getting sidetracked by the editor, https://xkcd.com/974/ https://xkcd.com/974/