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August 30, 2017 - My short To Do list for IO

A project log for The Cardboard Computer - IO is my name

My goal is a 4-bit CPU using recycled cardboard substrate and Diode Transistor Logic. This is an educational platform for me.

dr-cockroachDr. Cockroach 08/31/2017 at 00:130 Comments

I now have a short list of To Do's for IO

One instruction register.

One cell pointer register

Five 4-bit memory nibbles for the pointer ( Just choose 5 to start with )

Brainwarp instruction card read logic

Transistor clock circuit ( this is the oldest To Do )

Add two more rows to the Dmux circuit

Logic for eight Brainwarp instructions

I have the logic circuits down on paper for all but the actual instructions. Those will be the tough nuts to crack :-) But hay, this is what it's all about, learn by building. I can read all the web pages out there but the real learning is in the doing :-)

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