Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Posting-Version: version B 2.10.2 9/18/84; site drivax.UUCP
Path: utzoo!watmath!clyde!burl!ulysses!mhuxr!mhuxb!mhuxn!mhuxm!mhuxj!houxm!vax135!cornell!uw-beaver!tektronix!hplabs!amdahl!drivax!alan
From: alan@drivax.UUCP (Alan Fargusson)
Newsgroups: net.arch
Subject: Re: OS info request
Message-ID: <85@drivax.UUCP>
Date: Tue, 29-Jan-85 15:22:56 EST
Article-I.D.: drivax.85
Posted: Tue Jan 29 15:22:56 1985
Date-Received: Fri, 1-Feb-85 00:58:19 EST
Distribution: net
Organization: Digital Research, Monterey, CA
Lines: 13

MPE on the HP3000 has no system calls.

System services are implemented in priveleged segments, and are
called in the same way as any user subroutine. A segment is priveleged
(can execute protected instructions) if it is compiled with 'option preveleged'
and the owner of the file that it resides in has preveleged permission.

How would you rate this system?
-- 

Alan Fargusson.

{ ihnp4, sftig, amdahl, ucscc, ucbvax!unisoft }!drivax!alan