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

[Wilm Boerhout]

tiggerlasv at aim.com vaguely mentioned on 13-4-2009 1:53:
>
> Let's see.   What else could it be. . . .
>
> I've not messed with DZ emulation before.
>
> The DZ on the Unibus has more than 4 ports.
>
> The DZ on the Q-bus (DZV11) is only 4 ports per device.
>
> Can you try disabling the DZ emulation,
> and enable a more "modern" emulation, such as:
>
> SET VH ENABLED
> ATT VH0 10000
>
> (Then disable the DZ emulation, and try starting RSTS.   No need for 
> SYSGEN)
>
> With Simh, I've found it very helpful to disable every emulation
> that I'm not using.   Some of the massbus emulations mess with
> some of the tape controllers, for example.
>
> Do a SHO DEV in Simh, and see what is still enabled.
>
> If you're just doing basic operations, you can pare the system down
> quite a bit.   ( I even pull out modules during the Simh compile, to
> cut down on the size of the emulator. . . .)
>
> Really, all you need for basic interaction is:
>
> CLK
> TTI
> TTO
>
> and your disks/tapes/comm.
>
> For example, after I run my Simh startup file,
> a (simh) SHO DEV on my PC will return:
>
> CPU, 11/73, NOCIS, idle disabled, autoconfiguration on, 4088KB
> CLK, 60hz, address=blahblabblah
> TTI, address=blahblahblah
> TTO, address=blahblahblah
> VH0, etc. . .
> RQ, etc. . .
> TQ, etc. . .
> XQ, etc. . .
>
> That's pretty much it.   Everything else can be disabled,
> particularly the RHA and RHB adapters. . .
>
> Here is a .ZIP file with the executable that I use regularly.
>
> Note:   This is a pared-down version, and only supports
> the CPU's, and the following devices:  LPT, VH, RL, RQ, TQ, and XQ.
>
> (Note:  The RA70 emulation has been removed,
> so I could add a custom disk size.)
>
> Give it a shot, and see if it works for you.
>
>
>
> Tim
>
>
>
>
>
>
>
>
>
> -----Original Message-----
> From: Wilm Boerhout <w781 at planet.nl>
> To: SIMH Mailing List <simh at trailing-edge.com>
> Sent: Sun, 12 Apr 2009 12:03 pm
> Subject: Re: [Simh] PDP-11, RSTS/E, DECnet/E 4.1, DELQA
>
>
>
> 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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