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Re: Semper VMS - Nuclear Mode

From cross@spitfire.i.gajendra.net (Dan Cross)
Newsgroups comp.os.vms
Subject Re: Semper VMS - Nuclear Mode
Date 2025-10-27 10:16 +0000
Organization PANIX Public Access Internet and UNIX, NYC
Message-ID <10dngp8$1k7$1@reader2.panix.com> (permalink)
References <10dfric$2j5ee$1@dont-email.me> <68fe3672$0$668$14726298@news.sunsite.dk> <mm81r8Fbt72U2@mid.individual.net> <10dmk89$bj46$1@dont-email.me>

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In article <10dmk89$bj46$1@dont-email.me>,
Arne Vajhøj  <arne@vajhoej.dk> wrote:
>On 10/26/2025 9:56 PM, bill wrote:
>> On 10/26/2025 10:55 AM, Arne Vajhøj wrote:
>>> On 10/26/2025 8:35 AM, bill wrote:
>>>> On 10/26/2025 6:42 AM, Johnny Billquist wrote:
>>>>> On 2025-10-25 03:35, bill wrote:
>>>>>> On 10/24/2025 1:34 PM, Arne Vajhøj wrote:
>>>>>>> And it seems like a case where support does matter.
>>>>>>
>>>>>> The last mention of the PDP-11 in this kind of work was looking
>>>>>> for people with MACRO-11 experience.  It would not surprise me
>>>>>> to find out that no commercial OS is involved (possible no OS at
>>>>>> all, just running an application on bare metal),  A VAX in the
>>>>>> same environment could do the same.
>>>>>
>>>>> You need some PDP-11 OS running in order to use Macro-11. And unless 
>>>>> I remember wrong, at least Ontario Hydroelectric was/is running RSX.
>>>>
>>>> To do the development maybe.  But one can create programs in Macro-11
>>>> that run all by themselves on bare iron.  Fig Forth?
>>>
>>> Like VAXELN?
>> 
>> I doubt VAXELN will run MACRO-11 or that it will run on a PDP-11.
>
>Of course not.
>
>But it sounds like the same deployment model.
>
>My understanding about VAXELN (based on what I have been told - no
>personal experience) is that you link the OS into the application
>and deploy the application (with embedded OS) directly on
>the VAX.

VAXELN is closer to VxWorks than to what Bill described.  You
do development on a computer running a general purpose OS, and
link against their libraries and so on to generate an image you
load onto the target machine, but the environment provides a
small executive to handle task switching, event management, and
so forth.

I interpreted what Bill wrote as more like treating a PDP-11 as
a glorified microcontroller: perhaps there's a very small boot
loader in firmware, but after that, you're on your own; any
support for multiple tasks that your application has is
something that you provided; more generally, whatever
abstractions you use are ones you provided yourself.  You're
writing your own interrupt handlers, and so.

	- Dan C.

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Semper VMS - Nuclear Mode Subcommandante XDelta <vlf@star.enet.dec.com> - 2025-10-24 23:31 +1100
  Re: Semper VMS - Nuclear Mode Arne Vajhøj <arne@vajhoej.dk> - 2025-10-24 08:49 -0400
    Re: Semper VMS - Nuclear Mode bill <bill.gunshannon@gmail.com> - 2025-10-24 10:45 -0400
      Re: Semper VMS - Nuclear Mode Simon Clubley <clubley@remove_me.eisner.decus.org-Earth.UFP> - 2025-10-24 17:16 +0000
    Re: Semper VMS - Nuclear Mode Simon Clubley <clubley@remove_me.eisner.decus.org-Earth.UFP> - 2025-10-24 17:30 +0000
      Re: Semper VMS - Nuclear Mode Arne Vajhøj <arne@vajhoej.dk> - 2025-10-24 13:42 -0400
        Re: Semper VMS - Nuclear Mode jgd@cix.co.uk (John Dallman) - 2025-10-24 21:01 +0100
          Re: Semper VMS - Nuclear Mode Simon Clubley <clubley@remove_me.eisner.decus.org-Earth.UFP> - 2025-10-28 13:16 +0000
        Re: Semper VMS - Nuclear Mode drb@ihatespam.msu.edu (Dennis Boone) - 2025-10-26 15:56 +0000
          Re: Semper VMS - Nuclear Mode Simon Clubley <clubley@remove_me.eisner.decus.org-Earth.UFP> - 2025-10-28 13:09 +0000
    Re: Semper VMS - Nuclear Mode Dave Froble <davef@tsoft-inc.com> - 2025-10-26 20:45 -0400
  Re: Semper VMS - Nuclear Mode Michael S <already5chosen@yahoo.com> - 2025-10-24 16:58 +0300
    Re: Semper VMS - Nuclear Mode Arne Vajhøj <arne@vajhoej.dk> - 2025-10-24 09:07 -0400
      Re: Semper VMS - Nuclear Mode Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-10-24 21:02 +0000
      Re: Semper VMS - Nuclear Mode Michael S <already5chosen@yahoo.com> - 2025-10-26 17:37 +0200
    Re: Semper VMS - Nuclear Mode Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-10-24 20:59 +0000
  Re: Semper VMS - Nuclear Mode Simon Clubley <clubley@remove_me.eisner.decus.org-Earth.UFP> - 2025-10-24 17:13 +0000
    Re: Semper VMS - Nuclear Mode Arne Vajhøj <arne@vajhoej.dk> - 2025-10-24 13:34 -0400
      Re: Semper VMS - Nuclear Mode Chris Townley <news@cct-net.co.uk> - 2025-10-24 18:46 +0100
        Re: Semper VMS - Nuclear Mode Arne Vajhøj <arne@vajhoej.dk> - 2025-10-24 13:51 -0400
          Re: Semper VMS - Nuclear Mode Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-10-24 21:05 +0000
        Re: Semper VMS - Nuclear Mode cross@spitfire.i.gajendra.net (Dan Cross) - 2025-10-24 18:18 +0000
        Re: Semper VMS - Nuclear Mode Johnny Billquist <bqt@softjar.se> - 2025-10-26 11:40 +0100
          Re: Semper VMS - Nuclear Mode Alexander Schreiber <als@usenet.thangorodrim.de> - 2025-10-26 15:36 +0100
      Re: Semper VMS - Nuclear Mode bill <bill.gunshannon@gmail.com> - 2025-10-24 21:35 -0400
        Re: Semper VMS - Nuclear Mode Johnny Billquist <bqt@softjar.se> - 2025-10-26 11:42 +0100
          Re: Semper VMS - Nuclear Mode bill <bill.gunshannon@gmail.com> - 2025-10-26 08:35 -0400
            Re: Semper VMS - Nuclear Mode Arne Vajhøj <arne@vajhoej.dk> - 2025-10-26 10:55 -0400
              Re: Semper VMS - Nuclear Mode bill <bill.gunshannon@gmail.com> - 2025-10-26 21:56 -0400
                Re: Semper VMS - Nuclear Mode Arne Vajhøj <arne@vajhoej.dk> - 2025-10-26 22:09 -0400
                Re: Semper VMS - Nuclear Mode cross@spitfire.i.gajendra.net (Dan Cross) - 2025-10-27 10:16 +0000
                Re: Semper VMS - Nuclear Mode jayjwa <jayjwa@atr2.ath.cx.invalid> - 2025-10-27 15:55 -0400
                Re: Semper VMS - Nuclear Mode cross@spitfire.i.gajendra.net (Dan Cross) - 2025-10-28 12:58 +0000
                Re: Semper VMS - Nuclear Mode Simon Clubley <clubley@remove_me.eisner.decus.org-Earth.UFP> - 2025-10-28 13:54 +0000
                Re: Semper VMS - Nuclear Mode "Robert A. Brooks" <FIRST.LAST@vmssoftware.com> - 2025-10-28 12:15 -0400
                Re: Semper VMS - Nuclear Mode Johnny Billquist <bqt@softjar.se> - 2025-10-29 10:04 +0100
                Re: Semper VMS - Nuclear Mode Simon Clubley <clubley@remove_me.eisner.decus.org-Earth.UFP> - 2025-10-29 13:13 +0000
      Re: Semper VMS - Nuclear Mode Arne Vajhøj <arne@vajhoej.dk> - 2025-10-26 17:44 -0400
        Re: Semper VMS - Nuclear Mode cross@spitfire.i.gajendra.net (Dan Cross) - 2025-10-27 10:17 +0000
    Re: Semper VMS - Nuclear Mode cross@spitfire.i.gajendra.net (Dan Cross) - 2025-10-24 18:10 +0000
      Re: Semper VMS - Nuclear Mode bill <bill.gunshannon@gmail.com> - 2025-10-24 21:38 -0400
      Re: Semper VMS - Nuclear Mode Dave Froble <davef@tsoft-inc.com> - 2025-10-26 21:57 -0400
        Re: Semper VMS - Nuclear Mode cross@spitfire.i.gajendra.net (Dan Cross) - 2025-10-27 10:22 +0000
          Re: Semper VMS - Nuclear Mode antispam@fricas.org (Waldek Hebisch) - 2025-10-27 11:23 +0000
            Re: Semper VMS - Nuclear Mode cross@spitfire.i.gajendra.net (Dan Cross) - 2025-10-27 14:05 +0000
              Re: Semper VMS - Nuclear Mode Rich Alderson <news@alderson.users.panix.com> - 2025-10-27 18:06 -0400
            Re: Semper VMS - Nuclear Mode Arne Vajhøj <arne@vajhoej.dk> - 2025-10-27 19:37 -0400
  Re: Semper VMS - Nuclear Mode Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-10-24 20:53 +0000
  Re: Semper VMS - Nuclear Mode Olorin <no_email@invalid.invalid> - 2025-10-30 09:14 +0000
    Re: Semper VMS - Nuclear Mode cross@spitfire.i.gajendra.net (Dan Cross) - 2025-10-30 10:52 +0000

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