Path: utzoo!attcan!uunet!mcsun!unido!mpirbn!p554mve
From: p554mve@mpirbn.mpifr-bonn.mpg.de (Michael van Elst)
Newsgroups: sci.electronics
Subject: Re: "Name These Chips"
Message-ID: <1284@mpirbn.mpifr-bonn.mpg.de>
Date: 8 Oct 90 16:54:01 GMT
References: <9689@uhccux.uhcc.Hawaii.Edu> <4083@kitty.UUCP> <1990Oct5.152413.24200@zoo.toronto.edu> <1990Oct6.215013.21449@bpdsun1.uucp>
Reply-To: p554mve@mpirbn.UUCP (Michael van Elst)
Organization: Max-Planck-Institut fuer Radioastronomie, Bonn
Lines: 18

In article <1990Oct6.215013.21449@bpdsun1.uucp> rmf@bpdsun1.UUCP (Rob Finley) writes:
>My favorite was the Motorola 1-bit cpu chip.  Don't remember too many 
>details except an 8085 was cheaper.  They did have an app note where
>it controled traffic signals.  Hmm.  Wonder how it did that... B-).

No problem, you could extend the opcodes with an address field
and use a multiplexer to select an input channel. The finest thing
was that it didn't have a branch instruction. You could store the
result of an operation into a flag and it would continue reading
instructions (but not execute them) until a clear_flag instruction
was found.


-- 
Michael van Elst
UUCP:     universe!local-cluster!milky-way!sol!earth!uunet!unido!mpirbn!p554mve
Internet: p554mve@mpirbn.mpifr-bonn.mpg.de
                                "A potential Snark may lurk in every tree."