Deciphering PDP-11/05 ZQKC (Instruction Exerciser) MAINDEC failures...
derschjo at gmail.com
Mon Nov 9 15:42:41 CST 2015
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 (
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.
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