Custom, fully programmable 8 bit computer

Following Ben Eater's model (http://www.eater.net) and several days of bending wires, I managed to put together a computer out of 74ls ICs and breadboards. It's a real powerhouse: 2x 8 bit general purpose registers, an ALU that can add AND subtract, an 8 bit instruction register, 16 bytes of ram and a language with up to 16 unique instructions.

https://youtu.be/rLwxE87b2j8: the instructions it's executing: 0) load 0 into the first register 1) increment the value in the first register 2) display the contents of the first register 3) jump back to the instruction at memory location 1.

6 Likes

I don't understand a thing you said honestly but I can appreciate someone being creative, learning and I assume having fun with it. Now for me to get back to being creative, learning and having fun with it ..... eh someday : )

Well, the CPU market is really heating up then. First Ryzen and then this. Have you had any success passing a GPU through to a vm? :wink:

Ok, seriously now; That is awesome. I used to make computers in simulator games (http://powdertoy.co.uk/Browse/View.html?ID=975033), but always thought a physical device would just be too much work. Love to see someone who has actually done it.