[Simh] PDP-11, RSTS/E, DECnet/E 4.1, DELQA

Wilm Boerhout w781 at planet.nl
Sun Apr 12 15:03:05 EDT 2009


tiggerlasv at aim.com vaguely mentioned on 12-4-2009 20:54:

Thanks for taking the time to look into this! Comments interspersed below.

> Have you installed the appropriate WinPcap software?
> (Required for ethernet operations under Simh)
Yes. VMS runs fine on SIMH with this network setup, both DEcnet and TCP-IP.
>
> In your command file, try keeping the SET commands as basic as possible.
>
>
> SET XQ ENA     (should be enabled by default, unless you've disabled 
> it somewhere else)
>
> Don't issue any "SET TYPE" or "MAC = " commands; use the Simh defaults
>
> Do a "SHOW XQ ETH" . . . .   and find the number of your ethernet 
> adaptor.
>
> ATT XQ ETH0   (or ETH1, depending on how many network adapters you 
> have installed,
>                        and which one you want to use.)
>
>
> If the ATT isn't successful, either because of lack of WinPcap support,
> or some other problem, then RSTS/E will not see the device when it 
> starts up.
>
> Do a "SHOW XQ", and verify that it's attached.
Up to here, all good.
>
> On a REAL PDP-11, if you start RSTS/E, and the network cable
> isn't attached to the DELQA, RSTS/E will disable the DELQA.
> I don't know if Simh is smart enough to replicate this behavior or not.
Interesting, I'll look into that. But - there's a cable allright.
>
> When INIT starts, go to an INIT prompt, and do a "HAR LIST".
>
> It should show   XH0:    with the proper CSR, and a programmable 
> vector number
> such as P310, P314, or something similar.    Don't worry about whether 
> or not it shows
> DELQA or DEQNA at this point.
>
> Make sure your monitor is installed with "INSTALL RSTS"  (or whatever 
> you called it.)
>
> Start RSTS. . . .  and do a SHOW DEV . . . .  it should be in the list.
>
Yup. Should be, is not.  I've downgraded to a very simple 11/73, rq, tq, 
xq, dz setup and verified the QBUS config. In SIMH, everything looks 
allright. In RSTS INIT, no such luck. The only time I succeeded 
generating a QNA device into SIMH RSTS DECnet, was with a UNIBUS 11/94. 
But that did not work (and it should not, really).

I'll keep trying...

/Wilm



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