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Program Counter Completed

A project log for ED-64: A discrete 8-bit computer

ED-64 will be an 8-bit computer built with discrete components, and will feature a ferrite core memory (documented as a separate project).

Andrew StarrAndrew Starr 08/27/2017 at 01:104 Comments

The program counter (a presettable 6-bit up-counter) has been completed:

Testing in progress...

Discussions

Dr. Cockroach wrote 08/28/2017 at 07:47 point

Looks a lot nicer and faster than what I am working  on. Keep up the great work :-)

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Andrew Starr wrote 08/28/2017 at 07:54 point

I wouldn't say mine necessarily looks 'nicer'...we have chosen different aesthetic approaches (and substrates) :) Cardboard and brass tacks capture that 'cyberpunk' spirit  - I really like it

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Andrew Starr wrote 08/28/2017 at 06:06 point

It should be good for at least a several hundred kHz. It's a synchronous counter, which helps. I'll know in a day or so.

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Ted Yapo wrote 08/27/2017 at 15:21 point

How fast do you think it will count? (I know you're still testing it ;-)

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