Re: Semper VMS - Nuclear Mode

From	cross@spitfire.i.gajendra.net (Dan Cross)
Newsgroups	comp.os.vms
Subject	Re: Semper VMS - Nuclear Mode
Date	2025-10-28 12:58 +0000
Organization	PANIX Public Access Internet and UNIX, NYC
Message-ID	<10dqemg$8u4$1@reader2.panix.com> (permalink)
References	<10dfric$2j5ee$1@dont-email.me> <mm81r8Fbt72U2@mid.individual.net> <10dmk89$bj46$1@dont-email.me> <873474p1an.fsf@atr2.ath.cx>

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In article <873474p1an.fsf@atr2.ath.cx>,
jayjwa  <jayjwa@atr2.ath.cx.invalid> wrote:
>Arne Vajhøj <arne@vajhoej.dk> writes:
>[snip]
>> 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.
>
>It's an SDK but no one calls it that. It would be much easier to
>understand if they did. One creates an application in C or Pascal. Then
>you compile/link it with ELN libraries. Maybe it supports other
>languages but the docs mention C and Pascal.

According to the VAXELN Technical Summary, it also contains a
runtime component that includes the kernel, which manages tasks
and provides synchronization/concurrency primitives, and little
else.  Even drivers are userspace processes; it's very
microkernelesque.
https://archive.org/details/h42_DEC_VAXELN_Technical_Summary/

I suspect something that throws people unfamiliar with embedded
and/or real-time systems for a loop is that the system is
statically configured at build time.  That is, one builds a
system configured with exactly those services, drivers, programs
etc, that are actually going to run on the target system.  And
yet there still is a real kernel there, unlike a pure "bare
metal" program written by an end user that has, essentially, no
runtime at all other than one the programmer provides.

	- 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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