In a message dated 4/29/99 10:00:04 PM Central Daylight Time,
bsa3(a)cornell.edu writes:
> On Tue, Jan 26, 1999 at 10:15:09PM -0800, Jason Willgruber wrote:
> > To tell the truth, I can't think of ANY IBM that had a factory reset
> > switch. My L40sx laptop has a place on the mother board for one,
> > but no actual external switch.
>
> I'm fairly certain that I saw one on a 1990-vintage RS/6000. I'll
> look tommorow and let you know. [That's about the only >= 1985
> workstation architecture I don't have an example of in my apartment.]
>
>
yep, the 250's and 350's have a reset switch. i had to use one today.
(the reset switch, that is)
Kelly
>would wildcarding be *.* ? or some other characters? and is it
>DX1:*.*=DX0:*.*
>
>My pip just responds ?OUT FIL?
>and DX1:=DX0:*.* responds with : ?ILL DEV?
Right... the CSI requires a file specification of some sort (which
is reason for the dummy filename I mentioned in a recent post). But
I think that the proper form for wildcards in the copy is
DX1:*=DX0:*.*
but it has been so long, I won't commit to it...
>I'm guessing that the version of FORMAT does this because if I FORMAT a
>disk and then DCOPY the HT-11B Distribution to it, it boots.
That is a strange FORMAT... Then again, it could be .CHAINing to
PIP with the appropriate command...
>Nope, no DUP.
DUP didn't show up until a few releases later, when the functions
of PIP were split into PIP, DUP and DIR. PIP was then specifically
used for file copies, DUP for disk utility operations, and DIR
specifically for directories.
>The reason I ask is that in my quest for 8" floppies I found two floppies
>marked RT-11V20C (which is one letter later than V20B which HT-11 thinks
>it is) but I can't seem to get a complete copy of DISK 1, but I can boot
>it.
I know I have a copy of V2C in my collection, on RK05... it probably
should be cleaned before use, though...
Megan Gentry
Former RT-11 Developer
+--------------------------------+-------------------------------------+
| Megan Gentry, EMT/B, PP-ASEL | Internet (work): gentry!zk3.dec.com |
| Unix Support Engineering Group | (home): mbg!world.std.com |
| Compaq Computer Corporation | addresses need '@' in place of '!' |
| 110 Spitbrook Rd. ZK03-2/T43 | URL: http://world.std.com/~mbg/ |
| Nashua, NH 03062 | "pdp-11 programmer - some assembler |
| (603) 884 1055 | required." - mbg |
+--------------------------------+-------------------------------------+
>You also have to put a bootblock on the resulting disk to make it
>bootable, but I don't know how to do this (off the top of my head)
>in HT-11 (or RT-11 V2B). In later RT-11's, this is done via DUP, but
>this doesn't exist in your distribution, does it?
Boy, this is nudging some long-dormant brain cells...
To write a bootstrap on V2(B or C), I believe the incantation is:
.R PIP
*DY1:A=DY1:MONITR.SYS/O
*
the 'A' is a dummy file name to satisfy the requirments of the
CSI, the /O is the option for writing the boot, using blocks
>from the file MONITR.SYS (which was listed in the directory
Chuck supplied earlier).
Megan Gentry
Former RT-11 Developer (1977-1992)
Long-time RT-11 User (since 1975)
+--------------------------------+-------------------------------------+
| Megan Gentry, EMT/B, PP-ASEL | Internet (work): gentry!zk3.dec.com |
| Unix Support Engineering Group | (home): mbg!world.std.com |
| Compaq Computer Corporation | addresses need '@' in place of '!' |
| 110 Spitbrook Rd. ZK03-2/T43 | URL: http://world.std.com/~mbg/ |
| Nashua, NH 03062 | "pdp-11 programmer - some assembler |
| (603) 884 1055 | required." - mbg |
+--------------------------------+-------------------------------------+
>Can anyone tell me how to copy files with PIP on an RT-11 V2 system? DCOPY
>fails to copy the complete disk and while the directory is intact the disk
>doesn't boot, so I want to use PIP to copy a file at a time and identify
>which files are on the bad part of the disk.
.R PIP
*DY1:FILE.OUT=DY0:FILE.IN
wildcarding works, too. If you want to find which blocks are readable,
and your distribution has the null device built in, you can try copying
each file to NL:.
You also have to put a bootblock on the resulting disk to make it
bootable, but I don't know how to do this (off the top of my head)
in HT-11 (or RT-11 V2B). In later RT-11's, this is done via DUP, but
this doesn't exist in your distribution, does it?
--
Tim Shoppa Email: shoppa(a)trailing-edge.com
Trailing Edge Technology WWW: http://www.trailing-edge.com/
7328 Bradley Blvd Voice: 301-767-5917
Bethesda, MD, USA 20817 Fax: 301-767-5927
Can anyone tell me how to copy files with PIP on an RT-11 V2 system? DCOPY
fails to copy the complete disk and while the directory is intact the disk
doesn't boot, so I want to use PIP to copy a file at a time and identify
which files are on the bad part of the disk.
--Chuck
In a message dated 99-04-29 22:09:30 EDT, you write:
> We're tossing out old computers this week, they are scheduled to be picked
> up
> by the local transportation company next monday or tuesday (probably
tuesday)
> .
> There are quite a few NDC 15" monochrome xterms. About 4 Sun ELC, 3-4 old
> style sun 19" monitors, that Decrwriter III that doesnt quite work.. A
> interesting color printer called a Howtek Pixelmaster (about the size of a
> water cooler). A pair of Apple Imagewriters.
>
> Anyways, they are in the hallway near my office, in teh basement of
> the computer science building. Let me know if anyone is interested, and
> I can give precise directions.
>
uh, what part of the globe do you live on?
>> I went scrounging today and found some interesting cards. A picture of
>>the first one is at "http://www.intellistar.net/~rigdonj/card1.jpg" and a
>>picture of the second is at "http://www.intellistar.net/~rigdonj/card2.jpg".
>> The first one is interesting because it has a list on the right side that
>>appears to be a list of memory locations and op codes. It's hard to see in
>>the photo but the first column is labeled CNT. (count?). Most of the ICs
>>are dated 1972. The only other markings on the card is "TERADYNE A 794" and
>>"Made in USA".
>Looks like a ROM built out of a diode array. I'd make a WAG that it's
>a bootstrap for some computer, but I don't know what. Judging by the
>content list, I'd say it's a 18-bit computer of some sort, but I don't
>recognize the board form factor or the opcodes.
Further insight: if you count the number of instructions listed that
have the low bit set, then count the diodes in the B01 region on the board,
they match up. And so on. Lots of zeroes in this particular opcode
set, whatever it is!
Tim.
We're tossing out old computers this week, they are scheduled to be picked up
by the local transportation company next monday or tuesday (probably tuesday).
There are quite a few NDC 15" monochrome xterms. About 4 Sun ELC, 3-4 old
style sun 19" monitors, that Decrwriter III that doesnt quite work.. A
interesting color printer called a Howtek Pixelmaster (about the size of a
water cooler). A pair of Apple Imagewriters.
Anyways, they are in the hallway near my office, in teh basement of
the computer science building. Let me know if anyone is interested, and
I can give precise directions.
-Lawrence LeMay
lemay(a)cs.umn.edu
Hey, I'm helping out a friend of mine that just got his first computer (a
386.. he's so excited about it - like a child on Christmas morning.. it's
funny). Anyway, it's pretty barren. I have a few things in my basement
(14.4 modem, printer, etc) but am looking for a CD-ROM (single speed is
great!), maybe a 500meg HD, overdrive chip, etc... just basically anything
to get him going.
Thanks in advance,
Kevin
--------------------------------------------------------------------------------
After sifting through the overwritten remaining blocks of Luke's
home directory, Luke and PDP-1 sped away from /u/lars, across the surface
of the Winchester riding Luke's flying read/write head. PDP-1 had Luke stop
at the edge of the cylinder overlooking /usr/spool/uucp.
"Unix-to-Unix Copy Program;" said PDP-1. "You will never find a
more wretched hive of bugs and flamers. We must be cautious."
-- DECWARS
____________________________________________________________________
| Kevin Stewart | "I am a secret |
| KC8BLL ----------| Wrapped in a mystery -Milford High School |
| a2k(a)one.net | Wrapped in an enigma Drama Tech Dept. |
|jlennon(a)nether.net| And drizzled in some tasty chocolate stuff.|
--------------------------------------------------------------------
A good starting reference to many of the computers used in spaceflight
is
NASA Contractor Report 182505
Computers in Spaceflight
The NASA Experience
James E. Tomayko
Wichita State University
Wichita, Kansas
It's available in hardcopy from CASI, and over the web from
http://www.hq.nasa.gov/office/pao/History/computers/Compspace.html
It gives a decent overview of the hardware involved, and has references
to very technical documents if you want to go into that much detail.
The HAL/S programming language is covered as an appendix.
--
Tim Shoppa Email: shoppa(a)trailing-edge.com
Trailing Edge Technology WWW: http://www.trailing-edge.com/
7328 Bradley Blvd Voice: 301-767-5917
Bethesda, MD, USA 20817 Fax: 301-767-5927
