🚀 go-pugleaf

>From JSol@RUTGERS Tue Dec  1 18:42:12 1981
Works Digest	       Wednesday, 2 Dec 1981       Volume 1 : Issue 41

Today's Topics:		Release of UNIX III
		  M68000 Paging Hardware & Problems
			 iAPX 432 & 8086's
		      Programming Environments
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Date:      19 Nov 81 1:03:18-EDT (Thu)
Sender:      Michael Muuss <mike.bmd70@BRL>
To:        OA-DRDAR at Brl
Subject:   Commercial Release of UNIX III
From:      Myra Hartwig <myra@brl>

[Note: This message is intended for government sponsored projects, and
not for personal use. It is being presented on WorkS as a time saving
tool for Arpanet-sponsored Unix users. -JSOL]

The Patent Licensing Office of Western Electric has announced the
release of UNIX III to the commercial market.  If you have a
Source license, you can obtain a binary license for $4800.  They
are currently evaluating a COBOL Compiler to run under UNIX III.
In addition to running on 11/780's, 11/70's, 11/34's and 11/23's,
UNIX III now will run on ONYX.

I can be contacted for more information, in needed:

	Myra Hartwig (ARPANET address - myra@brl)
	USA Ballistic Research Laboratories
	Aberdeen Proving Ground, MD  21005
	301-278-5691 or AUTOVON 283-5691

or you can contact Western Electric directly

	Western Electric, Guilford Center
	ATTN:  Joe Hunt, Dept 34GC212310
	P.O. Box 25000
	Greensboro, North Carolina  27420
	919-697-5714

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Date: Monday, 30 November 1981  10:55-EST
From: DPR at MIT-XX
Subject: WorkS Digest V1 #39

The problem with the 68000 is that it handles bus errors wrong:
you can't restart correctly after one.  Don't believe the
manuals!  Any hardware person who does is probably a bit green...

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Date: 30 November 1981 18:21-EST
From: Robert A. Morris <RAM at MIT-MC>
Re: The M68000 paging question about what fails with the facilities
Re: provided by Motorola.

Demand paging requires more than simply detecting when a non-resident
page has been referenced.  Since instructions will be only partially
complete when a page fault occurs, it is generally necessary to bring
in the non-resident page and restart the instruction.  To do this
properly the processor must save sufficient state during the bus error
interrupt to backup the instruction if not to the beginning then at
least to the point where it can proceed, recalling that servicing the
interrupt will change the processor state.  It is known that certain
M68000 instructions, including some very useful ones, do not save
sufficient state to restart these instructions. Since Motorola's
position is to fix this in some future version, some users use
compilers which do not generate the offending instructions program
with these compilers.  Others adopt the two processor solution
described elsewhere in these pages.

Bob Morris

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Date: 30 Nov 1981 22:20:09-PST
From: decvax!watmath!bstempleton at Berkeley
Subject: IAPX 432

Does anybody out there know anything about a special board containing
the 432 and an 8086 that is supposed to plug right into a unix system?
It's supposed to run around $5K, and come with software for Intel's
Object Programming Languange The name of the thing is something like
INTELlect.  We're interested in info on it and how to get it.

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Date: 1 December 1981 17:51-EST
From: Stavros M. Macrakis <MACRAK at MIT-MC>
Subject:  Programming environments

An IEEE tutorial collection has recently appeared: Software
Development Environments, ed. Anthony I. Wasserman, IEEE Order no.
385, Catalog No. EHO 187-5.

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End of WorkS Digest
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