Article View: comp.sys.misc
Article #1374Re: pascal microengine...
From: Carl Lowenstein
Date: Fri, 22 Jan 1988 21:46
Date: Fri, 22 Jan 1988 21:46
29 lines
1854 bytes
1854 bytes
In article <4516@sdcsvax.UCSD.EDU> allyn@sdcsvax.UCSD.EDU (Allyn Fratkin) writes:
-In article <16946@gatech.edu>, ken@gatech.edu (Ken Seefried iii) writes:
-> This may be a bit of ancient history...but does anyone remeber the
-> Pascal Microengine? Who made it and what processor did it use?
-> I used one back in the Dark Ages ( c. 1980 ).
-
-the pascal microengine was from western digital.
-
-"The WD/9000 processor is a hardware realization of UCSD's pseudo P-machine.
-The processor is comprised of five LSI/MOS circuits, each contained in
-a 40-pin package. The individual circuits are:
-
- o The Data Chip, containing the microinstruction decoder, the arithmetic
- and logic unit (ALU), and the register file.
-
- o The Control Chip, containing the macroinstruction decoder, protions of
- the control circuitry, the microinstruction counter, and input/output
- control logic.
-
- o Three 22 by 512-bit MICROM chips, containing processor microinstructions."
Just to add a few bits more information -- the same WD processor on a
different board and with different MICROM chips was sold in large volume
as the DEC LSI-11. Also the 11/2, on yet another board, although by that
time DEC was making their own chips rather than buying them from Western D.
--
carl lowenstein marine physical lab u.c. san diego
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Path: arc1-ca.pugleaf.net!utzoo!mnetor!uunet!husc6!bbn!uwmcsd1!ig!agate!ucbvax!sdcsvax!sdcc6!mplvax!cdl From: cdl@mplvax.nosc.MIL (Carl Lowenstein) Newsgroups: comp.sys.misc,comp.lang.pascal Subject: Re: pascal microengine... Message-ID: <708@mplvax.nosc.MIL> Date: 22 Jan 88 21:46:17 GMT References: <16946@gatech.edu> <4516@sdcsvax.UCSD.EDU> Reply-To: cdl@mplvax.nosc.mil.UUCP (Carl Lowenstein) Organization: U.C. San Diego, Marine Physical Laboratory Lines: 29