Reply to post: Re: Completely and utterly bonkers

This whopping 16-bit computer processor is being built by hand, transistor by transistor

Steve Crook

Re: Completely and utterly bonkers

If you haven't, go and look at the WEB site for the project. It's fascinating, board construction, component layout, testing, managing connections. Amazing breadth of skills the man has.

From his site:

"I spent a bit of time trying to work out how to do the 7-segment display using discrete transistors but the answer is vast. Really, really big. It would have near doubled the size of the thing and the circuitry for the display would have obscured the circuitry for the processor which would have undermined what I was trying to do. As its only for debug and not proper function I went for chips. This is definitely NOT cheating, it is just for debug. It is irritating though."

And

"The RAM's turning out to be quite sizable. A square inch per bit ! I'm hoping to do 64 bytes, but that translates to the best part of two square metres."

Really, I had to laugh. Sizeable? Not half it isn't.

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