Short test programs for pdp 11/34

Jörg Hoppe j_hoppe at
Fri Sep 23 07:47:00 CDT 2016

Hi Devin,

if you have the M9312 boot strap card: do you see the console emulator 
If the machine HALTs on power-up, some micro coded diagnostic failed
=> bad!
If you see the M9312 prompt, you can use PDP11GUI for further testing
Then you can write own assembler programs and download paper-tape based 
diagnostics. Contact me for more.


Am 23.09.2016 um 03:55 schrieb devin davison:
> Hello, made some progress with the pdp 11/34 I picked up a while back.
> Managed to repair the faulty power supply. I am in the process of trying to
> get a minimal configuration of the machine up and running.
> I am looking for a short program to key in to try and test the
> functionality of the cpu. Is there anywhere aside from the DEC manuals I
> could go to get a quick idea of how to operate the front panel? The manual
> is very in depth, however i am looking for sort of a quick start guide to
> get started pretty quickly. Any site with info on how to operate the front
> panel or some quick short programs i can key in would be of interest.
> I  almost have the whole machine put back together on my desk, if all goes
> well and it runs as expected, i want to post back with some nice orderly
> pictures of it in the rack next to all the drives and the tape Drive.
> Progress overall with the whole machine has been slow going, the machine
> came with a heap of rsx 11 disk packs and tapes, however I am not to the
> point where i can use them just yet. Ive been kinda itching to see whats on
> those tapes, hopefully soon.
> --Devin

More information about the cctalk mailing list