MAINDEC-11-DZQKC-E-D listing posted (Re: Deciphering PDP-11/05 ZQKC (Instruction Exerciser) MAINDEC failures...)

Josh Dersch derschjo at gmail.com
Tue Nov 10 21:42:00 CST 2015


On 11/10/15 2:10 PM, Jay Jaeger wrote:
> On 11/9/2015 3:42 PM, Josh Dersch wrote:
>
>> On Mon, Nov 9, 2015 at 12:37 PM, Jay Jaeger <cube1 at charter.net> wrote:
>>
>>> On 11/8/2015 11:50 AM, Josh Dersch wrote:
>>>
>>>> Anyone have any experience with this particular diagnostic?
>>>>
>>>> Thanks,
>>>> Josh
>>>>
>>> The version can normally be identified either by the file name or on the
>>> paper tape if you are using a real paper tape.  My guess is that the
>>> version you are running does not match the PDF.
>>>
>>> Some of us also have diagnostic listings of various versions, and have
>>> some of them on Microfiche.  Unfortunately, I do not seem to have a
>>> listing for DZQKC (any revision).  [It isn't missing - it isn't even
>>> listed in the fiche index.  :( ]
>>>
>>> HOWEVER, I *DO* have a *paper* listing of revision E (among others).
>>> The code starting at 16002 reads
>>>
>>> 016002  105737 177564      TSTB @#TPS
>>> 016006  100375             BPL  .-4
>>> 016010  006237 177564      TSTB @#TPS
>>> 016014  000001             WAIT          ; WAIT FOR FIRST INTERRUPT
>>>
>>> The routine starts at 015734 and the comment is ";CHECK TTY INTERRUPT"
>>>
>>> AND, the paper copy has a red stamp indicating that a change may be
>>> required for it to operation.
>>>
>>>    LOC  FROM     TO
>>>   2266   200     340
>>> 14146   200     340
>>> 16164  5227    4737
>>> 16166     0     160
>>>
>>>   160      -     5227
>>>   162      -        0
>>>   164      -     1375
>>>   166      -      207
>>>
>>> So, please provide either the complete file name you loaded (if you are
>>> loading from RX, hard disk, DECTape, etc., or the complete information
>>> on the paper tape and we should at least be able to help you figure out
>>> if they match, or not, and whether or not someone has a listing that
>>> matches and can tell you what the error might mean, and perhaps provide
>>> a scan to you (and bitsavers).
>>>
>> Thanks, I should have thought to check the revision codes in the first
>> place.  Looks like the Bitsavers docs are from revision C; I've been
>> running the paper-tape version that's on Bitsavers (
>> http://bitsavers.informatik.uni-stuttgart.de/bits/DEC/pdp11/papertapeimages/20031230/tray4.txt),
>> which is labeled as "maindec-11-dzqkc-e-pb" which looks like it should be
>> Revision E (which is fortunate!).
>>
>> If you do have the ability to scan this, I'd love to see it.
>>
>> Thanks,
>> Josh
>>
>>
>>
>>> JRJ
>>>
>>>
>>>
> The diagnostic listing is now available in my new bitsavers-contrib
> folder on Google drive:
>
> https://drive.google.com/folderview?id=0B2v4WRwISEQRWWFFdVpCZWFTZEU&usp=sharing
>
> This is the only document in there right now, and you will find it in
> the same path that the other occupies on bitsavers, i.e. in folder
> ./pdf/dec/pdp11/xxdp/diag_listings
>
> A PDF is there as well as a zip file containing the original .tif files
> as Al Kossow prefers for submissions.  (Al:  Hint, Hint  ;) ).
>
> JRJ
>
>
>

Thanks a ton for taking the time to make this available.  Time for some 
debugging!

- Josh



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