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OpenVMS Hobbyist Program | VAX Systems Forums | Emulated VAX Forum
Author SimH VAX Peculiarity?

Posts: 10
Joined: 29.05.11
Posted on June 06 2011 17:35
I noticed that whenever I boot up SimH VAX inside Putty under Windows, I get this peculiar message:

Connected to the VAX simulator

?C6 2 01 FF 00 0000

P1=00000000 P2=00000000 P3=00000000 P4=00000000 P5=00000000
P6=00000000 P7=00000000 P8=00000000 P9=00000000 P10=00000000
r0=00000080 r1=00000020 r2=00000000 r3=201407A4 r4=2004D2F0
r5=2004D310 r6=2004D312 r7=00000000 r8=00000000 ERF=80000000

KA655-B V5.3, VMB 2.7
Performing normal system tests.

Normal operation not possible.

>>>b dua0

Why does the 6c always occur such that I need to do a carriage return first that result in a 22 ILL CMD, followed by a b dua0 to boot normally?
Author RE: SimH VAX Peculiarity?
Bruce Claremont

Posts: 499
Joined: 07.01.10
Posted on June 07 2011 04:39
Under Windows, I have had enough problems with PuTTY as the boot console that I quit using it and just leave the Windows command window as the console. It is clumsy, but does the job. I use PuTTY to connect to serial and telnet sessions and it works very well.
Author RE: SimH VAX Peculiarity?

Posts: 459
Joined: 15.04.08
Posted on June 07 2011 11:56
Have you tried using the delete key in putting (configured to send a delete, not backspace of course) to delete those characters?

I run SimH in a Linux VM.

I do not know if the console is trying to auto-detect what type of terminal is attached and is failing to detect putty.
Author RE: SimH VAX Peculiarity?

Posts: 10
Joined: 29.05.11
Posted on June 07 2011 19:51
I've just tried using Tera Term Pro emulating VT320 and the 6c disappeared. However, the first key I pressed at the >>> prompt did not appear until the second time and the rest is normal.
Wonder if it's the terminal emulation mode that's giving the problem.

Btw, is it possible to autoboot from, let's say, DUA0 without having to keep typing >>> b dua0 each time I open a telnet console? The SimH 'dep -b bdr 0' didn't seem to work. I've tried >>> set boot dua0 and that didn't work either. Just wondering.
Author RE: SimH VAX Peculiarity?
Bruce Claremont

Posts: 499
Joined: 07.01.10
Posted on June 09 2011 03:56
; Uncomment the line below to enable auto-boot
dep bdr 0

At the VAX console prompt (>>>smiley you will need to issue a SET BOOT DUA0:
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April 05 2018
ah maybe they love that!

March 24 2018
Probably. More people hang out on the comp.os.vms newsgroup.

March 23 2018
I have a PE42A and other Alpha system stuff for sale. I'm in So California. Any interest out there?

February 27 2018
To Prohorenko. Please, visit group OpenVMS in the ok.ru

February 24 2018
How much does it cost to buy a complete OpenVMS hardcopy documentation set of the latest version

February 17 2018
Please help to obtain the license on OpenVMS

December 12 2017
HPE only makes the most current version of OpenVMS Alpha / IA64 /VAX available to hobbyists. When I had access to the Alliance 1 program it was the same. No public downloads are allowed by HPE.

December 08 2017
Is anybody knows OpenVMS 8.2 version downloadable version? or CD copy? Thank you very much

December 02 2017
Bitcoin and Blockchain enthusiasts ( plus distributed computing ) please connec / reply: http://www.openvmshobbyis

September 10 2017
lation/ For the most part just use VMS 6.1 media instead of 7.3. But why run the older release?

August 07 2017
Where can I find the write up on running VMS 6.1 using the simh emulator?

March 20 2017
Happy to have found my password again!

March 16 2017
peteherrera. Agreed.

March 04 2017
It would be nice to be able to buy the lastest hardcopy full OpenVMS docset at a very reduced price through the Hobbyist program. smiley

February 05 2017
Decus > Connect > Encompass<Country>

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