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computers / alt.sys.pdp11 / .lookup on the TT device problem

SubjectAuthor
* .lookup on the TT device problemLee Gleason
`* Re: .lookup on the TT device problemJerry Weiss
 `- Re: .lookup on the TT device problemLee Gleason

1
Subject: .lookup on the TT device problem
From: Lee Gleason
Newsgroups: alt.sys.pdp11
Organization: usenet-news.net
Date: Fri, 13 May 2022 02:54 UTC
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From: lee.glea...@comcast.net (Lee Gleason)
Subject: .lookup on the TT device problem
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   I wrote a slug of programs a while back for RT-11. Haven't needed to look at them for a few years. Today, I need 'em again.


   All of them assign a channel to the TT device (the console) via


tarea:: .blkw   5
tnam::  .rad50  /TT /
         .blkw   6


         .lookup #tarea,#6,#tnam ;open a channel to the console


   This used to work fine. Now, when I run one of these programs, I get

?MON-F-No device 012620

   I cut one of the program down to where I can tell that the .lookup above is the offending line.

   Not sure what that's telling me. I am not a skilled RT-11 programmer....Does anyone have an idea what could have changed in the environment to cause this technique to stop working?

--
Lee K. Gleason N5ZMR
Control-G Consultants
lee.gleason@comcast.net



Subject: Re: .lookup on the TT device problem
From: Jerry Weiss
Newsgroups: alt.sys.pdp11
Date: Fri, 20 May 2022 07:14 UTC
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Subject: Re: .lookup on the TT device problem
From: jsw...@ieee.org (Jerry Weiss)
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On Thursday, May 12, 2022 at 9:54:16 PM UTC-5, lee.g...@gmail.com wrote:
I wrote a slug of programs a while back for RT-11. Haven't needed to
look at them for a few years. Today, I need 'em again.

…..

This used to work fine. Now, when I run one of these programs, I get

?MON-F-No device 012620

….


What are the details of the environment?  

SHOW ALL 

TT.SYS present? Installed? Loaded?

  Jerry



Subject: Re: .lookup on the TT device problem
From: Lee Gleason
Newsgroups: alt.sys.pdp11
Organization: usenet-news.net
Date: Fri, 20 May 2022 15:38 UTC
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Subject: Re: .lookup on the TT device problem
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From: lee.glea...@comcast.net (Lee Gleason)
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On 5/20/2022 2:14 AM, Jerry Weiss wrote:
On Thursday, May 12, 2022 at 9:54:16 PM UTC-5, lee.g...@gmail.com wrote:
I wrote a slug of programs a while back for RT-11. Haven't needed to
look at them for a few years. Today, I need 'em again.

…..

This used to work fine. Now, when I run one of these programs, I get

?MON-F-No device 012620

….


What are the details of the environment?

SHOW ALL

TT.SYS present? Installed? Loaded?

   Jerry



   Thanks for the reply. Your question about TT.SYS gave me the clue I needed to figure it out, TT.SYS had to be LOADed. It didn't initially occur to me that could be the problem area, since the console was working fine already, and I naively assumed that meant all was well with the TT driver. Apparently on the RT11 system where I had previously used these programs, TT had already been LOADed. This current one, it had not. Clearly I have much to learn about RT11...

   Thanks.

--
Lee K. Gleason N5ZMR
Control-G Consultants
lee.gleason@comcast.net


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