Path: utzoo!attcan!uunet!mtndew!friedl
From: friedl@mtndew.Tustin.CA.US (Steve Friedl)
Newsgroups: comp.unix.internals
Subject: Re: Multiplexed Special Devices
Message-ID: <547@mtndew.Tustin.CA.US>
Date: 12 Oct 90 17:20:50 GMT
References: <6633@ncrcae.Columbia.NCR.COM> <4171@auspex.auspex.com> <13869@ulysses.att.com>
Organization: VSI*FAX Tech Ctr, Tustin, CA
Lines: 19

Steven Bellovin:
> As several people have noted, multiplexor devices date to v7.  They were
> indeed quite buggy, though I know of a few uses for the 4.1bsd versions.
> The early BSD support for BLIT terminals (the ancestor of the 5620 and
> the 630) was based on them, as was the IPC mechanism for a multi-player
> adventure-style game called t4c.

Gosling Emacs supported mpx files as well.  We had no end of problems
with them when I was working on it back at Kent State, but later found
out that this was probably due to mpx bugs in the kernel.  I think that
Chris Torek had patches to fix them...

     Steve

-- 
Stephen J. Friedl, KA8CMY / I speak for me only / Tustin, CA / 3B2-kind-of-guy
+1 714 544 6561  / friedl@mtndew.Tustin.CA.US  / {uunet,attmail}!mtndew!friedl

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