> Message: 1
> Date: Wed, 14 Jun 2006 16:24:29 -0700 (PDT)
> From: Martin Lovick <martin_lovick(a)yahoo.com>
> Subject: [pups] bitsavers document
> To: pups(a)minnie.tuhs.org
> Message-ID: <20060614232429.78414.qmail(a)web36905.mail.mud.yahoo.com>
> Content-Type: text/plain; charset=iso-8859-1
>
> whilst looking around the bitsavers.org pdf archive, I
> found a document called
> PreliminaryUnixImplementationDocument_Jun72.pdf.
> Having had a quick scan through, it contains a source
> code listing and some commentary (lions i hear you
> say).
No, not Lions. The author is listed on the first page as one T. R.
Bashkow.
> The strange thing is that all of the source code
> appears to be in assembler...
yup. This would be an early pdp11 UNIX from the period before the
rewrite in C.
>
> whats this about?
It appears to be a listing of an assembly language version of an
early UNIX kernel for the pdp11 in the pages labelled E*-*; the pages
F*-* are a commentary; G*-* is a glossary of terms used; H*-*
contains a description of each function in the kernel with complete
details of each function.
>
> is it a comentary of PDP-7 unix?
It's (Bell Labs flavor) pdp11 assembly language.
>
> regards
>
> Martin
--
Milo Velimirović <milov(a)uwlax.edu>
Unix Computer Network Administrator 608-785-6618 Office
ITS Network Services 608-386-2817 Cell
University of Wisconsin - La Crosse
La Crosse, Wisconsin 54601 USA 43 48 48 N 91 13 53 W
--
Unix: Where /etc/init is job #1.
I downloaded the tape building kit of Fred's enhanced Ultrix 3.1 and
set about trying to build an image file suitable for use with SIMH. As
simply modifying the included script to write to a normal file instead
of a (non-existant) tape device failed, I tried doing things by hand,
running maketape and then "cat"ing the file it created along with all
the other files "dd"ed by the script into a single file. While this
produced a file that looked about the right size, it didn't work with
SIMH as mounting it to the emulated TK50 device and booting produced:
HALT instruction, PC: 016300 (CLR R3)
Any help on how to get a working image available so that my nerdy
history project can proceed?
Mike "Madcrow" K.
> I tried doing things by hand,
> running maketape and then "cat"ing the file it created along with all
> the other files "dd"ed by the script into a single file.
You need to put file marks between everything logically 'dd'-ed
In the .tap format, file marks are four bytes of 0.
End of tape should have two sets of file marks (eight bytes of 0)
FWIW, I sent warren a .tap image of Ultrix 2.0. Never heard anything from
him about it.
Actually what I meant Gregg was Jon Pertwee was the Doctor back in the
'60s which is the time period you were referring to, and Troughton too I
guess. That reminds me of an episode called "The time..." something or other
with Roger Delgado. They were trying to do something with some type of
computer obviously an old mini of some type and some anciet artifact. There
were toggle switches and lights. Otherwise it certainly didn't look like and
PDP that I've ever seen in pictures. Just to get close to one of those old
things would be breathtaking. Before my time though.
Bill
Hello!
I have here a Doctor Who book which takes place during the early part of the
computer revolution, about the time the whole of what's discussed here
happened. The people concerned in the book have machines running UNIX. Some
of these are indeed PDP-11s and there are also a few DG Eclipses.
Now the question: How difficult would it to port UNIX V7 from the usual
machine, probably a PDP-11/43 (But I might be wrong about the model!) to a
DG Eclipse? Naturally since I don't have physical hardware here, the
intended target would be a SIMH DG virtual Eclipse (Or even a Nova 4) and
the one doing all the work would be a SIMH PDP-11.
--
Gregg C Levine hansolofalcon(a)worldnet.att.net
"The Force will be with you. Always." Obi-Wan Kenobi
Hi Bent Lee,
you asked for help
>
>I need help with the V6 kernel compilation. I read the Unix setup guide
>and the
>file /usr/sys/run. I've seen one problem so far with the /usr/sys/run
>file. That is
>that the two lib files (lib1 & lib2) did not contain any symbols.
>
>When I ran:
># ar r ../lib1
>and
># ar r ../lib2
>
>I got a string of error messages from ld.
which error messages?
>
>But after I did this:
># ar r ../lib1 *.o
>and
># ar r ../lib2 *.o
This might have corrupted your lib files. These two lines are only meant as
templates to replace some files in your archives, that is lib[12], if necessary.
But replacing an object file is necessary only if you changed the corresponding
source file and recompiled it.
Here are the files supposed to be in lib1:
# ar t lib1
main.o
alloc.o
iget.o
prf.o
rdwri.o
slp.o
subr.o
text.o
trap.o
sig.o
sysent.o
clock.o
fio.o
malloc.o
nami.o
pipe.o
sys1.o
sys2.o
sys3.o
sys4.o
>
>I have these missing symbols
># ld -x l.o m40.o c.o ../lib1 ../lib2
>Undefined:
>_end (defined by ld if successful)
>_edata (same)
>_iinit (from alloc.c)
>_iget (from iget.c)
replace lib1 and lib2 with the original files and it should work!
You might want to consult
http://www.ba-stuttgart.de/~helbig/os/script/chapt1.1
for help installing V6.
Regards,
Wolfgang
--
"Dijkstra is right, but you don't say such things!"
(A less courageous programmer)
Hi All
I need help with the V6 kernel compilation. I read the Unix setup guide
and the
file /usr/sys/run. I've seen one problem so far with the /usr/sys/run
file. That is
that the two lib files (lib1 & lib2) did not contain any symbols.
When I ran:
# ar r ../lib1
and
# ar r ../lib2
I got a string of error messages from ld.
But after I did this:
# ar r ../lib1 *.o
and
# ar r ../lib2 *.o
I have these missing symbols
# ld -x l.o m40.o c.o ../lib1 ../lib2
Undefined:
_end
_edata
_iinit
_iget
_update
_schar
_namei
_maknode
_access
_itrunc
_iput
_alloc
_uchar
_closef
_getf
Can anyone help me with this?
(I saw that MIT athena has a V6 repository with a Makefile in it
But I cannot access it at all. (-_-) )
thanks
bent lee
I would start with the gears first. Stepper motor
testing can be done by visual inpection by running
through 1 character at a time. Mark each turn when
moving to the next character. This requires diassembly
of the casing and other visual blocking components.
John
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> 1. weird problem with our Decwriter III terminal
> ... (asbesto)
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----------------------------------------------------------------------
>
> Message: 1
> Date: Wed, 21 Jun 2006 09:38:10 +0000
> From: asbesto <asbesto(a)freaknet.org>
> Subject: [TUHS] weird problem with our Decwriter III
> terminal ...
> To: tuhs(a)tuhs.org
> Message-ID: <20060621093810.GA24010(a)freaknet.org>
> Content-Type: text/plain; charset=us-ascii
>
>
> Hi,
>
> maybe someone here can help us - our problem is that
> the
> decwriter terminal seem to "jump" in particular
> positions
> when printing
>
> we don't understand how to solve this problem -
> maybe this is a
> stepper motor problem, or another problem in
> gears/transmission?
>
> the problem is evident in this image:
>
>
http://dyne.org/museum/dec/terminals/la120/tn/dscn3488.jpg.html
>
> does someone have an idea about this problem?
> tnx!
>
> :)
>
> --
> [ asbesto : IW9HGS : freaknet medialab :
> radiocybernet : poetry ]
> [ http://freaknet.org/asbesto
> http://papuasia.org/radiocybernet ]
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> MANDARMI ALLEGATI ]
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> End of TUHS Digest, Vol 32, Issue 15
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Hi,
maybe someone here can help us - our problem is that the
decwriter terminal seem to "jump" in particular positions
when printing
we don't understand how to solve this problem - maybe this is a
stepper motor problem, or another problem in gears/transmission?
the problem is evident in this image:
http://dyne.org/museum/dec/terminals/la120/tn/dscn3488.jpg.html
does someone have an idea about this problem?
tnx!
:)
--
[ asbesto : IW9HGS : freaknet medialab : radiocybernet : poetry ]
[ http://freaknet.org/asbestohttp://papuasia.org/radiocybernet ]
[ NON SCRIVERMI USANDO LETTERE ACCENTATE, NON MANDARMI ALLEGATI ]
[ *I DELETE* EMAIL > 100K, ATTACHMENTS, HTML, M$-WORD DOC, SPAM ]