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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 01:10•4 Comments

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

Testing in progress...
Previous log

Address Register Installed

06/08/2017 at 09:40 • 1 comment
Next log

Program Counter Up and Running

09/04/2017 at 09:31 • 0 comments

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 :-)

  Are you sure? yes | no

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

  Are you sure? yes | no

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.

  Are you sure? yes | no

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 ;-)

  Are you sure? yes | no

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