From: Jerome_V_Vollborn@cup.portal.com
Subject: Re: writing operating systems in ADA
Date: 22 Oct 89 22:57:08 GMT [thread overview]
Message-ID: <23303@cup.portal.com> (raw)
In-Reply-To: 6842@hubcap.clemson.edu
I think the poster is refering to the Intel 432. I don't remember the
operating system being written in Ada but the 432 did support object
in the hardware. Each processor was considered an object and had
a stored object description. See Elliot I. Organick' book "A
Programmer's View of the Intel 432 System" (McGraw-Hill Book Company,
1983, ISBN 0-07-047719-1).
The major problems with the 432 were marketing and technical. The
marketing problem was that the 432 did not look like an 8080 (1/2 :-).
The technical problem was that the 432 was a bus hog. When it went
to request data from memory, it sent a processor number, an address
and a length. The return packet was the processor number, address,
length and data. Too expensive for Multibus I to handle.
Jerome Vollborn
(Jerome_V_Vollborn@cup.portal.com or
uunet!lci386!jerome)
next prev parent reply other threads:[~1989-10-22 22:57 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
1989-10-19 1:34 writing operating systems in ADA Dale R. Wyttenbach
1989-10-20 16:41 ` Phil Johnson
1989-10-21 16:42 ` William Thomas Wolfe, 2847
1989-10-22 13:06 ` Karl Nyberg
1989-10-22 15:42 ` David Farber
1989-10-22 22:57 ` Jerome_V_Vollborn [this message]
1989-10-23 0:45 ` Satish Kumar .C
1989-10-24 17:17 ` R. Kannan
1989-11-01 16:38 ` David Schneider
1989-10-23 17:06 ` Tom Quiggle @sation
1989-10-24 13:30 ` callen
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