27 Apr
1999
27 Apr
'99
3:26 a.m.
My single biggest problem seems to be stopping a
diagnostic once I've
started it. So far I've been resorting to stopping the CPU and rebooting,
but one would think that there must be a better way, and that I've missed
it.
You don't have to reboot; you can often just halt the CPU and start
up XXDP+ again at the restart address (this is given at boot time as
a message on the console.) Some diagnostics (especially the really
extensive memory diagnostics) wipe out the XXDP+ monitor and you do,
indeed, have to reboot.
CKK FA <xy> 1 11/44 Diagnostic ROM*
My second problem is the first test, I can't find a KKFA*.* test. Is there
another test I can run on the diagnostic ROM?
The diagnostic ROM *is* the test :-). This is the "big" bipolar
PROM located near the boot PROM's. And the test is executed at startup.
#3 is #3, but I think this is proper behavior
CKKABD0 11/44 TRAPS
NO FLOATING POINT OPTION PRESENT
NO CIS OPTION PRESENT
CONSOLE
17777707 023252
>>
#5 may or may not be a problem with the cache (real
problem is my not
knowing how to interpret it).
CKKKAC0 11-44 KK11B CACHE
RMI REGISTER (G5179) NOT USED-SKIP HI ORDER BIT ADDRESS TEST
The G5179 is the PDP-11/44 Remote Memory Interface (an extremely
rare option). You don't have it :-).
UNIBUS EXERCISER NOT USED-DMA TESTS NOT PERFORMED
There was also an optional Unibus exerciser that could be installed
instead of the normal terminator. These aren't all that rare - they're
very commonly found inside 11/750's.
--
Tim Shoppa Email: shoppa(a)trailing-edge.com
Trailing Edge Technology WWW: http://www.trailing-edge.com/
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