Path: utzoo!mnetor!uunet!lll-winken!lll-tis!ames!pasteur!agate!eos!riacs!dave
From: dave@riacs.edu (Dave Gehrt)
Newsgroups: comp.unix.wizards
Subject: Re: Real Time UNIX
Message-ID: <765@hydra.riacs.edu>
Date: 6 Apr 88 02:58:21 GMT
References: <12825@brl-adm.ARPA>
Reply-To: dave@hydra.riacs.edu.UUCP (Dave Gehrt)
Organization: Research Institute for Advanced Computer Science
Lines: 17

In article <12825@brl-adm.ARPA> REILLY@wharton.upenn.edu writes:
>I'm looking for a real time UNIX box...

There was an outfit in San Diego called Alcyon, sorry but I have no phone
number for them, who were the developers of REGULUS, which is a Unix like
operating system with some real time extensions.  I used this operating
system, but not for real real time, and it was OK.  The box (*not* an Alcyon
box) on which I used REGULUS had problems (not enough memory and a 68000 SBC)
which made the system more difficult to use than Unix.  Alcyon makes (or did
make) a VME system with REGULUS on it.

I seem to recall that at one time there was talk of AT&T annointing REGULUS as
a real time Unix.  REGULUS provides the capability to hook a user process to
an interrupt, and a couple of other system calls to support real time
operations.

Hpe this helps,
dave