Random question
would you prefer having, if you had to pick only one, the original PDP
11/70 or the newer "blue cabinets" PDP 11/70, assuming both were complete
configurations with racks of storage etc as they would have been sold, more
or less.
Assume space and power are not issues, consider just the machine itself.
Bill
Those reading through the recent "PDP-11/45 RSTS/E boot problem" thread here will know that I've gotten to some corners of my 11/45 CPU now that don't match up with the commonly available engineering drawings.
My /45 is an early serial number (#152). So far I've verified hardware differences on at least my M8100 and M8105 cards and spares, relating to parity error abort handling. I would really like to track down any of the following resources:
- PDP 11/45 system engineering drawings *earlier* than those currently available on bitsavers (Jun '74)
- Any PDP 11/45 backplane wire list (what looks to be a wire list in the currently available engineering drawings is actually only a breakdown of the power harness.)
- PDP 11/45 ECO information, particularly the following:
M8100 00003
M8103 00005
M8105 00005
M8106 00007, 00008, 00012, 00012A
M8110 00008
KB11-A 00015
Bitsavers seems to have a DEC-O-LOG for M8105, but this does not contain specifics on cuts and jumps for ECO 00005, referring only to the associated "kit". DEC-O-LOGs for the other processor boards are missing.
If anybody thinks they might have any of this info squirreled away anywhere, I'd really love to find out more about it!
Parts of the ECO's are pretty easy to figure, just by comparing the state of my existing boards to the '74 drawings. But other parts not so much...
thanks much,
--FritzM.
Hi,
I knew that since ~20 yrs, but I didn't know the affected gcc
version(s). According to http://toni.technetium.be/hacker/pragma.htm
this "special" pragma handling should be in gcc 1.34.
But I cannot find gcc 1.34. ftp.gnu.org has gcc-1.30.atari (where the
sequence doesn't exist), and gcc-1.35 (where it's "#if 0"ed).
Does anyone know where to find the source code of gcc 1.34?
regards,
chris
From: Jay Jaeger
> Here is what I have for drawings:
Wow. You have some very desirable stuff there! Let me point at a couple
of things of particular interest:
> B-TC-FP11-C-6 FP11-C (Print Set MP00038) December 75
> [M8126, M8127, M8128, M8129]
AFAIK, prints for the FP11-C are not available online:
http://manx-docs.org/details.php/1,9306
so those of us with an FP11-C would be particularly grateful if you could
scan those and make them available.
> EK-KT11C-MM-005 KT11-C, CD Memory Management Unit Maintenance Manual
Not available online; the earlier DEC-11-HKTCA-C-D KT11-C Memory Management
Unit Maintenance Manual is available online, but doesn't cover the -CD. This
one is in the fiche set, but it's a pain to work with (especially since my
fiche reader burned out its bulb recently :-), so it's a 'nice to have',
scan-wise.
> EK-MS11A-MM-006 MS11-A,B,C memory System Maintenance Manual
Agaih, not available online, but in the fiche. Ditto 'nice to have'.
Of course, anything you've got that's not online should be scanned
'eventually' (I have several of those myself, sigh).
Noel
> Sorry, but no. It?s grossly offensive for things that work perfectly well and that someone might actually find useful to go to scrap. There?s tons of useless and broken junk that our civilization can mine for scrap, we don?t need to actually destroy things that have actual value.
>
> If someone isn?t able to sell for the price they?d like to get, maybe the market won?t bear that price and they need to lower it. Scrapping should be a course of last resort, a way to recover value from something you can?t even give away, not a competing outlet for goods.
>
> -- Chris
While I also don't like scrapping out things that work or can be
repaired relatively easily, a saying I use in a variety of situation is
"don't force your limitations on me, I have enough of my own."
That said, I VERY much appreciate the free pile at VCFMW that allows me
to get rid of stuff that will go to a good home rather than go to
landfill or scrap (I DON'T DO EBAY!!!) Many times I find free to be far
to expensive for most people including myself (think
postage/shipping/prep time.)
> From: Fritz Mueller
> I would really like to track down any of the following resources:
> - PDP 11/45 system engineering drawings *earlier* than those currently
> available on bitsavers (Jun '74)
My KB11-A prints have an 'overall' date of "4/76" (on the front page), but
prints within the set seem to be older.
E.g. my M8100 prints are dated 2/72, and none contain any entries in the
'Revisions' block (lower left). However, they are marked as Rev. D, which is
newer than the KB11-A prints at Bitsaver, which are marked as Rev. C. So I
have no idea what changed to cause the rev update! (The first drawing, the
board layout, does show a listing for 'D', so maybe it was just a layout
change?)
The boards aren't all the same rev, though: the M8102 in mine are marked Rev.
C.
My KT11-D prints are dated "5/72" (on the front page), and the M8107 prints
are hand-marked as Rev. A, but the M8108 pages have mostly been replaced with
'yellow-sheet' updates with Rev. F, dated 6-'73.
Noel
At 07:13 PM 1/28/2019, dwight via cctalk wrote:
>When looking at the 45 minutes, also consider the various overheads involved.
>They are in business. Time is money.
Space is money. Organization is money. Information is money.
Advertising / listing for sale takes time and money. And it all only
gets worse if the item is heavy, dirty, or leaking.
- John
