Path: utzoo!utgpu!news-server.csri.toronto.edu!rutgers!cs.utexas.edu!usc!apple!portal!cup.portal.com!Chuck_M_Grandgent
From: Chuck_M_Grandgent@cup.portal.com
Newsgroups: sci.electronics
Subject: Re: RCA MicroSystem CDP 1802 uP
Message-ID: <32970@cup.portal.com>
Date: 19 Aug 90 03:15:16 GMT
References: Technical Manual for  CDP 1800 series
  <32839@eerie.acsu.Buffalo.EDU>
Distribution: usa
Organization: The Portal System (TM)
Lines: 18

Do you realize the vintage of the CDP 1802 ?
I was doing 1802 stuff back in 1978 or 1979.
Also, the recent Jupiter lander from Voyager was 1802-based !
If you really can't find documentation for this chip, please
EMail me, I have original RCA manuals I would be willing to make
copies of.
BTW - I liked this chip.
Compared to 6502 which had only 3 eight-bit registers,
1802 had real 16-bit registers,
and you could change the PC to one of 16 PC values
with a one-byte instruction.
It was ahead of its time, but bad RCA-marketing crippled it.
==================================================
Chuck Grandgent,  K1OM
PictureTel Corporation,
Peabody, MA
    - K1OM@cup.portal.com
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