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From: richard@gryphon.CTS.COM (Richard Sexton)
Newsgroups: comp.arch
Subject: Re: pdp-11/55
Message-ID: <1896@gryphon.CTS.COM>
Date: Tue, 13-Oct-87 21:00:24 EDT
Article-I.D.: gryphon.1896
Posted: Tue Oct 13 21:00:24 1987
Date-Received: Thu, 15-Oct-87 22:21:19 EDT
References: too many
Reply-To: richard@gryphon.CTS.COM (Richard Sexton)
Organization: Trailing Edge Technology, Redondo Beach, CA
Lines: 26
Keywords: nostalgia, not IBM 1130's

In article <15435@topaz.rutgers.edu> ron@topaz.rutgers.edu (Ron Natalie) writes:
>The RSX use of split I/D came in RSX-11M+ which allowed you to use
>split I/D in supervisor mode.
>
>-Ron
>
>What no mark instruction?

I used a MARK instruction. Once.

I read up on it, found a place to use it and used it.

When I was showing the code to my boss, he said "What is THAT!"

"Why it's a MARK instruction" I gloated.

I explained to him what it did, how neat it was and he said:

"Please remove it".

-- 
Richard J. Sexton
INTERNET:     richard@gryphon.CTS.COM
UUCP:         {hplabs!hp-sdd, sdcsvax, ihnp4, nosc}!crash!gryphon!richard

"It's too dark to put the keys in my ignition..."