[Simh] KS10 and the DMR

[Phil Budne]

> From: "R. Voorhorst" <simh at swabhawat.com>
> Date: Thu, 1 May 2014 08:10:23 +0000 (UTC)
.....
> The Ks10 Dmr case hos now been solved; the Dmr can be used in Tops10 V7.02 
> to 7.05 with Decnet and Anf, but some minor issues have still to be 
> resolved.
> The trace can be followed at the Simh issue list #100:
> https://github.com/simh/simh/issues/100

Thanks for the detailed notes!

It's wild to see the virtual network you created; I was just thinking
this week about _some_ things that DECnet got right (backwards
compatible evolution thru "Phases", PHase IV "areas" could span over
multiple "links"; "hello timer" values in routing packets)

    .network /topology
    [ANF10 network: connected to BITXT1(10), located at BITXT1(10), 1 node]
    Node BITXT1 (10) None

    [DECnet network: local node BITXT1, 12 reachable nodes in area 7]
    Name Number Line Cost Hops L.Links Delay
    BITXOM (7.72) KDP-0-0 7 2
    BITXOO (7.61) KDP-0-0 4 1
    BITXOR (7.71) KDP-0-0 7 2
    BITXOT (7.70) KDP-0-0 7 2 0 1000
    BITXOU (7.82) KDP-0-0 7 2 0 1000
    BITXOV (7.60) KDP-0-0 7 2 0 1000
    BITXOW (7.74) KDP-0-0 7 2 0 1000
    BITXOX (7.76) KDP-0-0 7 2
    BITXOZ (7.81) KDP-0-0 7 2
    BITXT0 (7.79) KDP-0-0 7 2
    BITXT1 (7.80) local 0 0 0 5000
    MBSERV (7.6) KDP-0-0 7 2


But....

    That delivers the following:

    1.   Dmr Tops10-702:      D8RINT V006     ANF ok    Decnet phase-III ok
    2.   Dmr Tops10-703:      D8RINT V016     ANF ok    Decnet phase IV crash
    3.   Dmr Tops10-704/5:    D8RINT V022     ANF ok    Decnet phase IV crash (UBA)
    ......
    The things to do are:

    1.  Retrieve either BB-X128A-SB or a full backup of a 702 system pack with [10,7] build tree
    2.  Repair D8RINT.MAC V016 to a newer V017 and possibly some Tops10-703 modules
    3.  Repair D8RINT.MAC V022 to a newer V023 and possibly some Tops10-704 modules

V017 of the file was already used (on the way to V020 (if versions
were octal, or V018 if they weren't)), and there's some possibility
that there was a V023 that wasn't released, or hasn't been found, yet.

So V016A and V022A might be better designations for modified files.

Also I have some tiny memory that "WEM" stopcode was one where it was
someone's initials!  Wayne Matson?

http://pdp-10.trailing-edge.com/bb-bt99g-bb/01/d60unv.mac.html
	; [111]	  12-May-81  WEM     Add D6IAB, D6OAB error returns


Phil