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I like projects like this. I started reading Code a while back, and thought it would be fun to make a computer out of relays, light bulbs, tinker toys, or whatnot. Then I started reading The Elements of Computing Systems, and thought about building something in a FPGA. One of these days.

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I had The Elements of Computing Systems in my lap, opened to the chapter on creating an ALU as i came across this post :) Still have to build all the logic chips before I can implement the ALU though. This stuff is super fun.

Actually, you don't need to implement the other chips to create your ALU. You just have to implement the chips in the chapter. Each chapter is designed to be self-sustaining, so if you wanted to jump ahead to make the ALU you could, then later implement the underlying components.

Reading and thinking are one thing, actually building something is another. Suggest getting a soldering iron or a breadboard and make anything.

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