11/40, 11/45 INSTRUCTION EXERCISER listing

Charles H. Dickman chd_1 at nktelco.net
Tue Sep 6 18:09:24 CDT 2005


I have been trying to run diagnostic tapes on my PDP-11/40. It seems 
that I am missing the documentation for many of the CPU diagnostics. 
Does anyone have a listing for the 11/40 instruction exerciser? My paper 
tape is MAINDEC-11-DCQKC-A-PB.

I load the tape and start it at 200 and it runs for a while and then 
begins printing out:

PASS #0000 PC=015354 PSW=000000
PASS #0000 PC=015356 PSW=000000
PASS #0000 PC=015360 PSW=000000
PASS #0000 PC=015352 PSW=000001
PASS #0000 PC=015354 PSW=000001
PASS #0000 PC=015356 PSW=000001
PASS #0000 PC=015360 PSW=000001
PASS #0000 PC=015352 PSW=000001
...

This seems to run indefinitely.

I have tried several different switch setting as described in the PDP-11 
Diagnostic Handbook recently online at bitsavers, but it always ended up 
with this result.

Anyone have information on this diagnostic?

-chuck





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