TTL homebrew CPUs
Jos Dreesen / Marian Capel
jos.mar at bluewin.ch
Mon Jul 9 00:17:44 CDT 2007
e.stiebler wrote:
> Philip Pemberton wrote:
>> e.stiebler wrote:
>>> Try to find somebody with a copy of the 1974 "elector" magazine (uk).
>>> They had a series of articles about a "computer74" which was designed
>>> in '74, and made of 74' series chips. Was a 16 bit thing.
>>
>> Are you sure about that?
>
> No ;-)
> Actually, I read this in the german edition in 1974, and Tony knew this
> series from elektor, so I assumed it was in the uk edition too ...
>
Elektor started in the 60ties in Holland.
The Elektor 74 is a strange beast : clockless, instructies are tied to
memory addresses . Could have hardware multiply and divide !
But it was also very inefficient in its usage of TTL.
No PCBs were published. I strongly suspect that no machine, other than
the prototype, was ever made. Also software was not covered.
I still need to put up my own 12 bit design.
Jos
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