Opensimh issue

75 views
Skip to first unread message

John Blackburn

unread,
Sep 29, 2025, 10:27:24 AMSep 29
to PiDP-10
Hi,

I have installed opensimh on my Macbook, so I can do some networking development work for the PDP10.  I have installed Tops20 and I can get it to run booted from mag tape.  However, there are a couple of peculiarities:

1.)  When I login [ LOG OPERATOR ] and hit return I immediately receive
       "Incorrect Password".  I can login if I type the login command immediately
       followed by the password on the same line.

2.)   When I go into wheels privilege mode and type:  ^ECEASE NOW  it rejects the
        keyword NOW and doesn't shutdown.  I have tried a number of other possible
        commands including "SHUTDOWN" and none of them work.  I have to terminate the
        MACOS  window to get out of it.   Any ideas ?

Many Thanks


John

Adam Morris

unread,
Sep 29, 2025, 2:34:23 PMSep 29
to PiDP-10
The biggest issue I have is how to pronounce Opensimh.  I am learning Gaelic at the moment and "mh" is pronounced as "v".  So this would be open sieve, but then I usually want to add an extra H in and I think open shiv.

What do others think or say?

Adam

Lawrence Harris

unread,
Sep 29, 2025, 2:46:48 PMSep 29
to Adam Morris, PiDP-10
Just pedantic, open sim h for me

Lawrence

-- 
You received this message because you are subscribed to the Google Groups "PiDP-10" group.
To unsubscribe from this group and stop receiving emails from it, send an email to pidp-10+u...@googlegroups.com.
To view this discussion visit https://groups.google.com/d/msgid/pidp-10/D9F1730A-164F-428E-AABF-4B9090670DFB%40mutant.net.

Tim Radde

unread,
Sep 29, 2025, 10:16:48 PMSep 29
to PiDP-10
Same for me.  I've always pronounced it as Open Sim H.

John Francini

unread,
Oct 2, 2025, 3:45:59 PMOct 2
to John Blackburn, PiDP-10
Hello John,

I don't believe that DEC-distributed TOPS-20's LOGIN command has a "press RETURN after username and get a password prompt" mode. I've always had to type the password on the same line.  If you use the command-completion and incremental help features - which work everywhere, even when logged-out - it should be something like this:

[letters I typed are in lower-case; the system's responses are in upper-case; a "$" means I pressed ESCape at that point:]

@log$IN (USERNAME) operator $(PASSWORD) password 

For ^ECEASE have you tried typing a ? to get a list of options?

Thanks and regards,

John

--
John Francini <fran...@mac.com>
"It is a capital mistake to theorize before one has data. Insensibly one begins to twist facts to suit theories, instead of theories to suit facts." -- Sherlock Holmes, A Scandal in Bohemia

--
You received this message because you are subscribed to the Google Groups "PiDP-10" group.
To unsubscribe from this group and stop receiving emails from it, send an email to pidp-10+u...@googlegroups.com.
Reply all
Reply to author
Forward
0 new messages