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  • .lookup on the TT device problem

    From Lee Gleason@lee.gleason@comcast.net to alt.sys.pdp11 on Thu May 12 21:54:13 2022
    From Newsgroup: alt.sys.pdp11


    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

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  • From Jerry Weiss@jsw@ieee.org to alt.sys.pdp11 on Fri May 20 00:14:44 2022
    From Newsgroup: alt.sys.pdp11

    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.

    rCa..

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

    ?MON-F-No device 012620

    rCa.

    What are the details of the environment?
    SHOW ALL
    TT.SYS present? Installed? Loaded?
    Jerry
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  • From Lee Gleason@lee.gleason@comcast.net to alt.sys.pdp11 on Fri May 20 10:38:04 2022
    From Newsgroup: alt.sys.pdp11

    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.

    rCa..

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

    ?MON-F-No device 012620

    rCa.


    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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