XXDP+ 2.5 - test-drb@ccmp.vtda.org

27 Apr 1999

...
 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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