[HECnet] Who's emulating?

[Paul Koning]

The async DDCMP driver is a whole new driver, and it depends on the
terminal driver structure that exists in the later versions of RSTS.   I
don't remember when that was put in place, but I'm pretty sure it wasn't
there in V8.0.   I did the original work for RSTS V9.6, but that was just
a private prototype.

	paul

-----Original Message-----
From: owner-hecnet at Update.UU.SE [mailto:owner-hecnet at Update.UU.SE] On
Behalf Of Mark Abene
Sent: Thursday, August 20, 2009 6:05 PM
To: hecnet at Update.UU.SE
Subject: Re: [HECnet] Who's emulating?

Unfortunately, given my preference to using RSTS/E v8, I must use
DECnet/E v2.0.   Those DECnet drivers only support a DMC or DMR device
(seen as "XM" in RSTS), or a DMP or DMV device (seen as "XD" in RSTS).
Based on what you're saying, the patch would not solve this problem?


Paul Koning wrote:
Excerpt of message (sent 20 August 2009) by Mark Abene:
Serious?   Are you actually emulating a DMC11?   I'm intrigued...

Yes.

Or rather, the terminal driver contains an implementation of the
DDCMP
protocol.   So it can talk to async DDCMP devices -- just as RSX did
for years.   Until V10, DECnet/E only did DMC/DMR type DDCMP devices.

On a Pro, which has a USART (not UART) console port, it even speaks
sync DDCMP if you want so it can talk to a DMC or DMR (and that
works,
I tested it).   On other PDP-11s it will use any of the async lines
and
speak async DDCMP.

          paul