The BIIN Computer was not a workstation. It was a fault tolerant transaction
processing machine of the late 1980s. It was to compete against Tandon and
IBM. The plans were to build 100 machines and put them out for trial and then
ramp up for production.
It used a variant of the i860 with multiple processors and 64 or 128 Megs of
ram, a 300 Meg HD for SW and mirrored IPI drives for data. Nice computer with
the entire chassis made to very high German standards in Germany and
airfreighted to here (Portland, OR).
Unfortunately we had a contract to dismantle and destroy all the machines
returned to intel after they closed down. Intel pulled all of the processor
chips before they even got to us. A very interesting machine, the chassis
took four hours to strip by our most experienced person.
For intel, Siemens was impossible to deal with, talk about a culture clash.
They were happy to see the project end. Intel had 5 or 10% with Siemens the
rest. When it became apparent that it was going to cost a huge amount of
money to compete, the BIIN Company was offered for sale and then shut down
and liquidated.
I have the original nail board for the BIIN Processor Card with all of it's
original documentation. If anyone out there is interested please contact me
off line at whoagiii(a)aol.com. I got the nail bed in another sale that was not
covered under the contract.
Paxton
I will also be inflicting myself on VCFE; I will be arriving in
Munchen Thurs morning and returning Monday; it will be a Big Fun to
meet anyone from the List who will be there.
Cheers
John
PS: a 'picture' of me is on the VCF 3.0 website... I exhibited the
Heathkit Large Analogue Computer, and was unfortunately too close to
it when Sellam took the photo. :( So you can figure out who I
am without having to decode eine NamenTag.
Ok, can someone explain why flip-chips keep selling for serious cash on
Ebay? I thought one thing people liked about flip-chips was how easy
they are to repair, ie, they are typicaly either transistor/resistor/diode
circuits, or possibly even simpler circuits implemented with very basic
IC's...
If someone is looking for a particular flip chip, and is willing to trade
some PDP8/E interface board for it, or something else PDP8 related, just
let me know. I picked up a bunch of flip chips reciently, i was planning
to use them in a display someday (ie, rows of flip chips plugged into
wire-wrapped backplanes).
-Lawrence LeMay
lemay(a)cs.umn.edu
At 12:39 PM 4/21/2000 -0700, you wrote:
>On Fri, 21 Apr 2000, Sellam Ismail wrote:
>> VCF 1.0e is about a week away and plans are rolling right along. It
>
>Better take along a LOT of visual aids (slides, overhead foils, etc.) If
>that's the extent of your German, then 45 minutes is going to call for a
>LOT of beer drinking, toilet visiting, and vomiting!
>Maybe you should have Hans translate, or rely on their knowing some
>English.
>
>> I'm also giving a talk at Oxford (that would be in England :) at the
>
>So you're going to have to learn British, also. Remember that we are two
>peoples divided by a common language.
>
>--
>Grumpy Ol' Fred cisin(a)xenosoft.com
>
You know what Professor Higgens said, "In America they haven't spoken it
in years!"
Maybe Sam could get Tony to translate.
Cheers
Charlie Fox
Charles E. Fox
Chas E. Fox Video Productions
793 Argyle Rd. Windsor N8Y 3J8 Ont. Canada
email foxvideo(a)wincom.net Homepage http://www.wincom.net/foxvideo
Check out "The Old Walkerville Virtual Museum" at
http://www.skyboom.com/foxvideo --works best with I.E.5
I just picked up three of the Intel EV80960SX evaluation boards. They're
evaluation boards for the Intel 80960 processors. There's a picture of one
at "www.intellistar.net/~rigdonj/misc/int80960.jpg". Does anyone have the
specs or any docs for them?
Joe
--- ks <ks(a)coastalnet.com> wrote:
> Cameron Kaiser wrote:
> >
> > Well, for those of you following HyperLink 2.5, the web browser I'm working
> > on for the C64, as of this morning I was able to surf Yahoo at 26.4 kbps
> > with a PC 28.8 modem and an ACIA cartridge.
>
>
> Cameron what is an ACIA cartridge?
I know what one is but not where to get one. The ACIA is a particular
variety of UART. IIRC, it stands for Advanced Communications Interface
Adapter or something similar. Should be a variant of 6550 chip in there.
Since I have a small drawer of 6550s (stripped from some 1970s 6502-based
dumb terminals), I'm wondering if there are plans on the net (ftp.funet.fi?)
to build one.
I happen to already have an IDE interface for the C-64 (and a 1.3" KittyHawk
drive to go with it); I'd love to stick a browser on there and go. If
possible, I'd probably try to retrofit an ACIA to a recycled C-64 game cart
with some creative wiring. Presumably at low speeds, DMA is not required.
As they say, it's not how well the bear dances, but that the bear can dance
at all.
Great Job, Cameron! Let me know if it's possible to homebrew a serial
interface that's compatible with what you are working on.
-ethan
=====
Even though my old e-mail address is no longer going to
vanish, please note my new public address: erd(a)iname.com
The original webpage address is still going away. The
permanent home is: http://penguincentral.com/
See http://ohio.voyager.net/ for details.
__________________________________________________
Do You Yahoo!?
Send online invitations with Yahoo! Invites.
http://invites.yahoo.com
Well, for those of you following HyperLink 2.5, the web browser I'm working
on for the C64, as of this morning I was able to surf Yahoo at 26.4 kbps
with a PC 28.8 modem and an ACIA cartridge. And a few other sites too, which
reminds me that Sam Ismail needs to put some ALT tags on those images on the
VCF site. ;-)
--
----------------------------- personal page: http://www.armory.com/~spectre/ --
Cameron Kaiser * Point Loma Nazarene University * ckaiser(a)ptloma.edu
-- Really???? WOW!!!!! I'm shallow TOO!!!!! -----------------------------------
I know this has been discussed before, but I can't find the info. I just
aquired a Maxtor 2190 disk drive that I want to convert into a DEC RD54. I
know about formatting it under XXDP, but I remember that a jumper had to be
changed on the drive. Can anyone help me out here?
Thanks,
Bill King
In a press release dated April 18, 2000, SCO has announced that they
have dropped the $100 processing fee for an "Ancient" Unix License:
http://www.sco.com/press/releases/2000/6927.html
They say that it will be possible to download code directly from their
site. As far as I can tell, they haven't yet made it available.
Once one has an Ancient Unix License, one can also get other Unix code
derived from Unix editions through 7th Edition, and 32V, from
PUPS, the PDP Unix Preservation Society:
http://minnie.cs.adfa.edu.au/PUPS/
And Marshall Kirk McKusick's CSRG Archive CD-ROM set (four discs, $99.00),
which contains all of the BSD releases:
http://www.mckusick.com/csrg/index.html
Hi All,
A couple of years ago I picked up a second Altair. It was missing all the
cards except for a Godbout active terminator card and is missing the top
case. While working on it a couple of weeks ago I found a previous owner's
name in it. It recognized the name, it was a guy that I worked with for
many years at Martin Marietta. After some searching, I finally tracked him
down and asked him about the Altair. Here's his reply:
>
>My EXwife 'disposed' of a fair amount of my equipment a few years back.
(She didn't pay the payments on the storage locked so the stuff was
trashed. ed)
> The
>Altair was in perfect shape, worked, had all of the cards and was attached
>to a Hazeltine1500 CRT. It had a couple of 8 inch floppy drives and a CDC
>Hawk 5x5 hard disk drive that fit a 19E rack. If I remember correctly, the
>Altair was serial 28. It wasn't a kit but was a production (one of the
>first off the line) model.
>
>Interesting how things happen??? BTW, I still live in Orlando. The number
>you gave was my work phone number when I was still working for Lockheed up
>in Ocala. I commuted each day from Orlando...got old and just about wore my
>car out.
>
>Nice hearing from you after all this time.
>
>Richard
>
Somehow a scrapper ended up with it. He evidently pulled the cards for
their scrap value. Then he sold the chassis at a hamfest. Another ex-Martin
employee bought it and years later I bought it from him. Does anyone have a
top case that they'll part with? My first Altair is nearly complete but I
still need the MITs floppy drive controller cards. Does anyone have a set
that they'll sell or trade? I have an original MITs floppy drive and
original MITs disks so I only need the controller cards to make it
operational.
Joe
They are having a clearout at work :). Due to the disposals policy and
procedures all of this stuff isn't considered worth putting through the
disposals procedure and being sold/given away and so must go in the
skip. However they are prepared to lend it to me on indefinite loan on
the condition that I return it so that they can throw it in the skip if
I leave.
The best find, in my opinion, is a Samsung S5200 luggable with all docs
and the original system floppies. From the documentation it is a 286
with 2MB RAM and 32MB SCSI hard drive. The only problem is that it has
a PSU fault - when I turn it on there is no life at all. I didn't bring
it home tonight as I was on the bike and it was raining but I will
collect the complete haul on Tuesday so I will be asking for help
diagnosing this fault. I have opened it up and the PSU contains no ICs
so it is the sort of thing I might have a chance of working on.
Also in the haul is Windows 2, Windows/286, Windows 3, DOS versions 3.1,
3.2, 4, 5, and 6.22, DR-DOS 5, OS/2, DBase versions 2 and 4, Turbo C++
V3, Zortech C, Wordstar 3, and 6 along with WordStar for Windoze,
SuperCalc versions 4, 5 and 5.1, DataEase, TAS + and Professional, and
much more on 5.25 and 8" disks which I haven't had time to catalogue
yet. There is even a full box of 10 brand new 8" disks. I also have a
Dragon 32 and may get an RM NB300 laptop if I am lucky. There is also
an original IBM PC/AT and a Wyse SCSI DAT drive. A lot of the software
is complete with original docs and some is shrink wrapped.
Can't wait to play with it all ;-)
--
Regards
Pete
On Thu, Apr 20, 2000 at 04:25:28PM +0000, bpechter(a)mail.monmouth.com wrote:
> I thought RJ45's are 8 pin maximum -- but I may be wrong.
The 10-pin ones are rare, but they do exist, Altex sells the cables/connectors
and Digikey has the sockets. With the usual RS232 pinning, the "RI" signal
is on one of the outer two pins, so the more common 8-pin RJ45s will lose
it, I know some people who have been burned by that. So that's why I care...
John Wilson
D Bit
Hello, boys and girls.
I've come to the realization that I have too much stuff. I'm building a
small Mac-based production studio in my basement so I can start
do theatrical sound effects in my spare time, and I'd like to finally
get started on the model rr layout.
Unfortunately, due to the stupid laws of physics, I only have a fixed
amount of space to do all this in.
I looked over all the shelves, and realized that I have been given
many machines that I'm really not interested in keeping, so
therefore I'm thinning the herd down to the key pieces.
I'll put together a list over the upcoming weekend if anyone's
interested, but since most of what I'm getting rid of is big stuff (big
in the desktop/laptop sort of world, not big as in the "I've got a
roomful of PDP stuff" sense......) so I'd like to not have to ship it.
If you're in the NW Indiana/Chicago region and might be interested
in some older IBM stuff, some Kaypro II's, and other miscellany,
please email me off-list and I'll get back to you as soon as I can. I'll
be tied up most of this week, but I'll try to answer quickly.
I'd hate to just scrap this stuff, as I'm sure someone can make use
of it. I just plain ran out of room and would like to have part of my
basement back.....
Thanks.
Paul Braun
NerdWare -- The History of the PC and the Nerds who brought it to you.
nerdware(a)laidbak.com
www.laidbak.com/nerdware
I recently read about an intresting old portable (luggable?) called the
Rover I. This is an intresting machine because instead of using floppy
drives like most portables, it uses wafertape drives (now *there's* a
storage system that never really took off, but I have heard that they were
reasonably popular on TRaSh-80's.)
My question: What is it? Does it exist? Was it ever released?
____________________________________________________________
David Vohs, Digital Archaeologist & Computer Historian.
Computer Collection:
"Triumph": Commodore 64C, 1802, 1541, FSD-1, GeoRAM 512, Okimate 20.
"Leela": Macintosh 128 (Plus upgrade), Nova SCSI HDD, Imagewriter II.
"Delorean": TI-99/4A.
"Monolith": Apple Macintosh Portable.
"Spectrum": Tandy Color Computer 3.
"Boombox": Sharp PC-7000.
____________________________________________________________
______________________________________________________
Get Your Private, Free Email at http://www.hotmail.com
>From previous usenet posting:
The bulbs look like the 8 bulbs, they can still be purchased from DEC
12-09169-00 LAMP, 15V @ .040AMP MAX, .075 $2.00
See web page http://www.digital.com/info/DAS-Catalog/dassearch.htmhttp://x35.deja.com/getdoc.xp?AN=534721209&CONTEXT=956232079.1091174408&hit…
On the 8/I I think the serial # is on the back of the frame, one has
two plates M26 8I L3221 and M26 8I SYS3194, which is the newer
of the machine, it also has a DEC looking piece of paper glued to the
bottom of the frame below the wirewrap dated 3/28/72. This is a negibus
also. Plates labeled M26 8I L3221 and M26 8I SYS3194. This one has chips
69-72.
The older? is M-2 L-927. It has a bunch of blue and other color wires which
I assume are ECO's or options added later. It doesn't have any of the
option plates on the top of the frame. The one above only has a few.
Most of it's chips are 68, it has some of the blue Sprague chips.
Sorry, only have the one copy of 8/I manuals that I scanned.
David Gesswein
After looking around on the net for a Dec MMJ terminal cable and finding
conflicting sources for their pinouts, I figured it would be just easier to
drive the 225mi round trip to dig around again int my favorite scrapper's
junk piles... As luck would have it, I did find 4 of the cables and two
RJ?? to db25 adapters.
So... I speed home and hook up a few of the VaxStation 3100's for a virgin
spin via the(MMJ) console and get:
KA43-A V1.3
F...E...D...C...B...A...9...8...7...6...5...4...3_...2_...1?...
? C 0080 0000.40001
?? 1 00C0 0000.7004
>>>
I'm guessing this is a memory or media fault but I'm not sure... Anyone?
Also, I finally opened rack #4 of the 11/44 system
http://users.leading.net/~dogas/classiccmp/digital/pdp1144.htm )
I picked up that was supposedly empty... And inside is a SC008 Star Coupler
and User Manual! A little happy dance ensued, of course, but I thought
these things were just for vax clusters. Can a 44 be a node along side
MicroVAXen ???
I also found a reference on the web
http://www.tapr.org/tapr/html/internethistory/slide10.html ) that asserts
that tcp was first written for a 44 too, is that true?
Sorry for all the dec boneheadedness.
Thanks
- Mike: dogas(a)leading.net
"Mike":
> ? C 0080 0000.40001
> ?? 1 00C0 0000.7004
> [...]
> I'm guessing this is a memory or media fault but I'm not sure... Anyone?
Nope. "C" refers to the serial ports, "?" probably because you don't
have a keyboard or mouse connected. "1" is the Ethernet port, with
"0000.7004" saying that it's in the BNC mode, and nothing's connected.
Only the "??" will stop it from trying to boot automatically. Connect a
BNC "T" with a pair of 50-ohm terminators to eliminate this complaint.
No one cares about the other one. See, for example,
"http://www.antinode.org/dec/vs3100_diag.html" (and its friends) for
more details. (Most of the VAXstation 2000 diagnostics info applies to
the 3100 series, too.) Try "TEST 50" and "SHOW DEVICE" for more and
better info.
I haven't tried it, but I'd bet a quarter that an AltaVista or Deja
search for 0000.7004 would tell you more than you might expect. This
may be _the_ most common/problem question on these things.
------------------------------------------------------------------------
Steven M. Schweda (+1) 651-699-9818 (voice, home)
382 South Warwick Street (+1) 763-781-0308 (voice, work)
Saint Paul MN 55105-2547 (+1) 763-781-0309 (facsimile, work)
sms(a)antinode.org sms(a)provis.com (work)
In a message dated 4/19/00 7:03:03 PM Eastern Daylight Time,
netsurfer_x1(a)hotmail.com writes:
> I recently read about an intresting old portable (luggable?) called the
> Rover I. This is an intresting machine because instead of using floppy
> drives like most portables, it uses wafertape drives (now *there's* a
> storage system that never really took off, but I have heard that they were
> reasonably popular on TRaSh-80's.)
wafertape - you mean stringy floppy? i have an exatron stringy floppy drive
with my trs80 model 1. no tapes though. anyone have any? a guy i worked with
has a stringy floppy drive with his model 1 and he said it was much better
than cassette tape. i think it was random access type device too. i think he
said you could store ~100k per wafertape. really looks like fishing line in a
little tape case.
DB Young ICQ: 29427634
view the computers of yesteryear at
http://members.aol.com/suprdave/classiccmp/museum.htm
--You can lead a whore to Vassar, but you can't make her think--
Hi,
I think I heard somewhere that magnetic drums are somewhat like core memory,
i.e. they retain their contents when shut off... I believe I read this in
the IBM 704 manual, so I'm not entirely certain that facts about those drums
(8192 36-bit words!) can really be applied to the drums I'm going to be
getting, which are from Vermont Research and are approximately 256K or so..
Also, does anyone know what other computer companies used drums from Vermont
Research? They're for my Interdata 7/32, but I know at least Varian used
Vermont Research drums... any others?
Will J
______________________________________________________
Get Your Private, Free Email at http://www.hotmail.com
>Boggles the mind, doesn't it? I remember that I paid $1250 for the first
>ST506 I bought. It even said Shugart Technology rather than Seagate
>Technology . That was 5 MB.
Managed to get my St506 in mid 81 for much less than half that.
connections.
>Well, if you're willing to believe that what's in the timing diagrams,
after
>you see they clearly violate other spec's, you can do that. I prefer to
>latch the data to ensure that I have it. Likewise, whether I have to write
>two locations or the same one twice, the data has to be latched. You also
Didnt' say you didn't need the latch only you didnt need an extra FF to
track
the silo status.
>'646..'654 type device, which won't work the way that's needed because
>they're edge-triggered, you'll run up the parts count. After all, you have
>to latch the low byte on writes and the high byte on reads. I think saving
What about 573s? Thats what I used. though the proto used ls373s.
>parts by leaving out functionality is risky here. If you write the high
>byte to the latch first, then write the low byte AND high byte, in a single
>unlatched write for the low byte, it may work, but now you can't use those
>handy instructions that make the Z-80 handier than the 8080/8085.
Well true, but then I don't always use z80. one version happens to use a
8749 with a 8155 and 8251 to serialize the data for a low speed net.
I only said I didnt' require the FF to track the data, not that it would
allow INIR.
>IMHO, once you have more than two components you have to look at
>programmable logic. I'm convinced that a CPLD, a small one, in fact, is
the
>correct solution here, except in the case of an 8-bit capable drive, in
>which case no logic at all is needed, beyond what's already there.
I have 2064s and 3030s but those packages are a real pain to wirewrap.
Then I ahve to balast a erpm with the pattern and wire that too. No savings
in wiring. For a PC card, yep, the only way.
>Yes, it's been done, and if I'm going to do the 16-bit interface, I'm going
>to do it with what's essentially their code. That means a pretty similar
>interface, which, by the way, is pretty minimal. It does latch both bytes
>of the data at the port.
Still no need to do that. you only latch the data you cant transfer
immediately.
Saves one latch though you could use it for a gated buffer if you wanted to.
>What matters to me more than making the extended versions of CP/M work, is
>making the REAL CP/M work.
Been there done that. It's easy enough, I have working examples. the
problem is with 8mb logical disks I tend to fill them and ploughing through
1000+ files
is a real pita to look at on the tube and slower than sludge cpu time wise.
Keep in mind I've been running CP/M since 1.4 was new. I have over
12 systems in the room that are running CP/M now. maybe another 5
that would run save for they are on the shelf (run but, are in storage).
Running systems CP/M more than half of which are running BIOS of my
design and ZCPR3. Some have mods to CPM like banked BIOS:
* means it's anything but stock and is a production use machine.
* hurikon MLZ92 Multibus CPM 2.2, banked.
* ISC8010 (modded) with NEC BP575 and BP2190 (two of them) running
banked with 3.5" floppies. (another multibus crate)
NS* horizon (restored, dual MDS-A) running Lifeboat CP/M 1.4
* NS* horizon with expansions and my own controllers runnign banked
ZCPR/SUPRBDOS/bios (CP/M2.2 compatable with extensions).
Current controller has 71mb (RD53). Controller is WD1002WXS with
Z80 frontend to the bus. this crate is 22years old and nothing near
stock.
NS* Advantage (restoring), 15mb CCS and floppy CP/M2.2 in 128k
Has a unique bios that attaches the NS hard disk DOS tot he cpm file
system allowing definable partitions.
* CCS runing their version and also a version of 2.2 I assembled for
Compupro
Controller (disk 1A)..
DEC vt180 (in Vt100) stock
* DEC VT180 (standalone, modded) running CP/M 2.2 from romdisk.
used as testbed for IDE, bubble memory. Runs at 6mhz (z80).
* AmproLB (scsi fujitsu 45mb) no mods other than cmos and it's production.
* Kaypro with Advent TURBOrom, 1 360k 5.25 and two 781k 3.5" floppies plus
2mb ramdisk.
Visual 1050 ( restored 128k CP/M 3) with dual 5.25 96tpi 781k, 20mb
Xebec
controller.
* Visual 1050 (modded, IDE 120mb). Banked bios CP/M2.2
* Compupro crate, NS* z80 cpu with MMU added 256k ram, Disk -1a controller
and IDE (85mb).
* Epson PX-8, with 120mb wedge CPM2.2 from rom. My laptop.
Allison
>drive work. I'm interested in the ones too small to bring even $10 at the
>flea market, i.e. the ones that are 10x what I need but only cost $6 or so.
Ok that ranges up to maybe 500mb now.
>It takes more than a latch, by the way, since you have to latch and hold
the
>low byte on writes, and the high byte on reads, in order not to screw up
the
>order of the bytes. Consequently, you need not only the two latches, but a
>bit of logic to effect the byte steering on reads and to perform the write
>after the CPU does the write, since the only time you can guarantee data
>valid is at the very end of the write strobe.
Limited logic, one latch. No rule said only one address for the data read
or write.
>The reason I'm whoring after the few drives with this feature included is
>that when this feature was available, if at all, the popular drives were of
>about the "right" capacity for the typical application of CP/M.
Of course when the IMSAI and Altair were around that would be casette tape,
8" floppy (SSSD 256k) or maybe minifloppy (80k).
Better find two as likely they will be so old that any reliability has been
run
out of them.
The nice part of a real 16bit interface is if it fails any drive make a good
replacement even if I dont choose to use all of it. that and despite the
claim that 8080 and cpm was slow they do run better with fast drives and
ramdisks proved that. So a fast drive (13-15ms or so, 4500rpm) with a
cache of say 32-256k does indeed improve perfomance.
Since IDE has been done for CPM (several articles in TCJ) and SCSI
even longer the idea of the right size is really a red herring to me. In the
CPM world the right size was literally whatever you had or could get
you hands on, the bigger the better. Even the deblocking example
in the CP/M-2.0 alteration guide they talk about how taking advantage
of it enabled a 35mb drive to be formatted using larger sectors to 57mb
with better perfomance. that was written in 1981. The concept was the
abiltiy to interface to almost any storage hardware via an extensable BIOS.
My current project is to take CP/M V2.2 and capitalize on P2DOS (suprbdos,
novados, Zrdos etal) clones and add a heirarchal directory to get past the
former flat structure (user areas helped only a little) and stay compatable
with apps that ran under V2.2. After all I want is better and not obsolete
perfectly good software.
Allison
----- Original Message -----
From: <sms(a)antinode.org>
To: <SIPKE(a)wxs.nl>
Sent: Saturday, April 08, 2000 6:27 PM
Subject: no chars on uVAX console
> Is that the speed selected by the rotary switch on the console
> bulkhead?
Yep
I've removed all boards save the memory boards (2*M7609)
and the CPU (M7606-AA)
Now I get characters (XON/OFF = on) and the bootprocess continues
until char 3
I've tried to put some of the boards back but I am not sure if I have a
missing
board.
Het boards were arranged as follows
slot 1 ----------------M 7606------------------
slot 2 ----------------M 7609------------------
slot 3 ----------------M 7609------------------
slot 4 -----M7516-------- (empty)
slot 5 -----M7555-------- ------M7546------
slot 6 (empty) ---Dilog sq703a---
The uVAX used to contain a Serial concentrator or something
like it but that was removed, propably from one of the
empty slot positions.
I've gathered that the first 4 slots are different from the rest of
the BA123, those beeing true Qbus 22 slots.
Should I rearrange the boards ? If so what do you suggest?
Sipke de Wal
-----Original Message-----
From: Peter Pachla <peter.pachla(a)wintermute.org.uk>
To: classiccmp(a)classiccmp.org <classiccmp(a)classiccmp.org>
Date: Monday, April 17, 2000 5:09 PM
Subject: Re: CPU upgrades, pt. II
>Hi,
>
> > Heres a PS2/50z question.
> >
> > Mine only has 1meg, looks like 72pin simm but none I have seem
> >work. All of them happen to be 8x32 (16chip).
>
>I don't really know too much about PS/2s yet, I'm only just starting to
>investigate these machines (I've got 3 - a Model 50, a Model 80 and a
Model
>95).
Ah, the model 95! The Ardent Tool of Capitalism itself! Makes a lovely file
server when running OS/2 or an old copy of NT 3.5. The machine is
indestructible, there's more than enough power and room for 3 or 4 modern
SCSI drives, and plenty of slots for a LANstreamer or two. If you don't
already have them, I'd suggest upgrading to a Type 4 (Pentium 60 or 66)
complex, and an IBM Fast/Wide SCSI controller. Alternatively, many of the
older complexes can take Evergreen or other upgrade CPUs, with the suitable
interposer.
The only downside of PS/2s these days is that 100 Meg Ethernet cards for
MCA are very hard to find.
You'll grow to love that Model 95 - I plan to have mine used as my
headstone when the time comes : v )
Cheers,
Mark
Does anyone have information on light bulbs for DEC front panels
circa 1968, in particular from a KA10 panel?
The bulbs in question have two metal pins. Some bear the legend
"OL-1", and others have two rows of info, "PL10161" on above "1209169".
There's temporarily a photo of one, next to a US penny for scale, at
http://www.36bit.org/dec/bulb.jpg
Would these be the same bulbs used on the PDP-8, PDP-8/I, or PDP-8/e?
I'd like to get a manufacturer and part number of a currently available
replacement. Or a source of old stock.
I've been told that there were also plug-compatible LED lamps in red and
green. These obviously must have contained a series current limiting
resistor. Any info?
Thanks!
Eric
>Does anyone have information on light bulbs for DEC front panels
>circa 1968, in particular from a KA10 panel?
>I've been told that there were also plug-compatible LED lamps in red and
>green. These obviously must have contained a series current limiting
>resistor. Any info?
If they're anything like the -8 front panels, there is also a "warming"
current through the bulb. The aftermarket LED "upgrades" either had you
snip the resistors that kept the prelight current flowing on the front
panel drivers, or (more classy) they had
divider networks in addition to current limiting to make sure the warming
current didn't appreciably light the LED.
It was about three years ago I posted an analysis of the divider method
to alt.sys.pdp8. I'd be glad to dredge up those calculations here if there
is any interest. The divider method is a little more complicated to
solder up, but it's easier to go back to real light bulbs if/when you decide
to go back to the "completely original" look.
Tim.
From: Richard Erlacher <edick(a)idcomm.com>
>I've never seen a CompuPro ANYTHING I liked. However, there's no
>accounting for taste.
Well the basic box with terminated mother board cant have ben that bad
since it was widely copied.
>You mustn't forget, BTW, that I'm not a collector, except in the sense that
>I haven't thrown some things away because I remember what they cost me.
I never said I was. Some of my sysstems are working systems because I
bought them 20+ years ago to do exactly that, work. Improving them is
reasonable in that context. The reast are collected because I wanted one
back when and could never afford it. Now I get to play with it.
>Of course, I have a real bunch of Multibus-1 stuff because it was always up
>to the mark.
I have MB1 and MBII systems as well plus boards made by my former (four
lifetimes ago) for MB as well. Nice stuff, big, sophisticated often very
fast
or very slow.
Allison
> "Has anyone got sufficient experience with the IDE in non-PC-compatible
>applications to say, unequivocally, whether the 8-bit operating mode
>described in section 6 of the standard for the ATA (IDE) interface, yes
>SPELLED OUT, actually exists in drives of the pre-1996 vintage?" It was
>dropped from the standard in 1996. There seem to be many folks with
>suggestions about how to implement this extremely elementary interface.
>There seem to be few who know whether the standard was every full
>implemented.
Why would they include that? NONE of the PC hardware they were intended
for wants to run as 8bit bus. Even the crippled SL/SLC run as 16bit busses.
>Allison seems to be the only one who's tried this, and, I fear, it may be
in
>a PC-compatible, where all bets are off as to what really happens.
Obviously visually impaired! I don't hack IO in PCs nor have I tried that
yet.
I may add why even bother, IDE works there as is.
ALL of the IDE work I've done was with 8085, z80s either stand alone
(bus less) or S100 Z80s. Further I'm currently working on a Z280 system
with IDE (Zbus 16bit). This is where I need interfaces and so I can replace
older MFM or non-existent hard disks. I currently have one S100 system
running a connor3044A (40mb) IDE that will be upgraded to a ST3250
(250mb) as it's a better drive.
The drives I've tried include:
Connor 2022
Connor 3044
WD2120
WD2420
St3096A
St3144A
St3250A
St3660
Fijitsu 528mb
Quantum LPS 80 and 120
Maxtor 124mb
and afew other sub 60mb WD, NEC, Seagate drives.
I now have two 2.5mb IDE in the 700-800mb region I may try one day.
I do have two WD PS/2m30 compatable 8bit IDE 20meg drives.
I think this is a good cross section
Allison
>
>Dick
>
>----- Original Message -----
>From: Mike Ford <mikeford(a)socal.rr.com>
>To: <classiccmp(a)classiccmp.org>
>Sent: Monday, April 17, 2000 7:22 PM
>Subject: Re: 8-bit IDE
>
>
>> I don't know a hoot about this, but I wonder if taking a look at the
>> Sequential Systems Focus card for the Apple II might be instuctive. Its a
>> controller and notebook IDE drive that all fits on a Apple II slot card.
>>
>>
>
Recently, as part of my effort on an S-100 "hard-card" using a 2-1/2 inch ide drive, I've been revisiting the 1994 standard for the ATA interface. There's a not-too-detailed mention of an 8-bit mode which is set up using a bit in register. This feature was apparently obsoleted as of 1996's standard.
Have any of you folks had contact with this feature as part of one or more of the standards? I know the original version of IDE as implemented on Compaq drives was 8-bits wide. However, once the ATA approach to HD interfacing became popular the 16-bit version won out.
Has anyone on this list dealt directly (not through the BIOS) with 8-bit IDE drives of 2-1/2" size? ... Any size at all?
Dick
--- "Merle K. Peirce" <at258(a)osfn.org> wrote:
>
> Actually, we got about 20 keyboards. It seems odd that the controller
> has a floppy drive. What was the purpose? Software upgrades?
Microcode, IIRC.
-ethan
=====
Even though my old e-mail address is no longer going to
vanish, please note my new public address: erd(a)iname.com
The original webpage address is still going away. The
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See http://ohio.voyager.net/ for details.
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--- Tony Duell <ard(a)p850ug1.demon.co.uk> wrote:
> Yes, but if you remove the entire head positioner (including the guide
> rails, etc) and put it back on _some_ drives you might have moved it
> sideways slightly. This will affect the index timing (since the relative
> position of head and index sensor have moved).
>
> Some drives have the guide rails fitting into V-grooves in the main
> casting, and those generally you can take apart and put back without
> problems.
I recently restored a Mac PowerBook 160 that was apparently dropped before
it made its way into my hands - the hard disk won't even spin up, several
of the screw mounts were sheared in the lower case and the floppy guide
rail had jumped its track entirely. The head was flopping around loose
inside the drive. It took a bit of fiddling, but I remounted the guide rail
and reassembled the drive - worked the first time. Now if only I had a
60-120Mb
2.5" SCSI drive to drop in this thing, I'd have a portable rig for dumping
my QuickTake 150 digital camera.
-ethan
=====
Even though my old e-mail address is no longer going to
vanish, please note my new public address: erd(a)iname.com
The original webpage address is still going away. The
permanent home is: http://penguincentral.com/
See http://ohio.voyager.net/ for details.
__________________________________________________
Do You Yahoo!?
Send online invitations with Yahoo! Invites.
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Hi,
looking for a defunct cray el series, in the UK.
Thanks,
Stu
Stuart Birchall
-----------------------------------------
Network Consultant
Zen Internet
http://home.zen.co.uk
Tel: 01706 713714 x 217
>This is described rather minimally in chapter 6 wherein the registers are
>defined. There's an 8-bit enable bit which, when properly conditioned,
will
>cause the data port interface to transfer 512 bytes as bytes rather than as
>256 words. There are LOTS of ways to "fake" it, but I'm trying to
determine
>whether anyone has actually operated an IDE interface normally used in
>16-bit mode in this obscure and, possibly, scantily supported mode.
If you find a drive that supports it let me know. I never did and I have a
good
list of drive to pick from.
>What I want is information from people who've actually read the standard
and
>attempted to use a normally 16-bit drive in 8-bit mode. This is not
>particularly easy with the existing hardware. I'll be surprised if anyone
>has built interface hardware that is actually capable of this. It's
>possible, though.
Actually 8bit mode is the desireable config. Just that it was deemed
optional.
figure it out, why would a PC vendor put in a mode that is inherently half
the performance?
Allison
Or an 8100 series minicomputer for that matter... they're not exclusively
mainframe devices, I know the DPPX/SP manuals for my 8100's tell how to
attach those devices to the 8100, not to mention that you can also attach a
Series/1, 3270 PC, Displaywriter, etc.
Will J
______________________________________________________
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>But if you want an IDE interface for the S100 bus that will work with
>just about any IDE drive that you throw at it, then you should only
>depend on whatever features are required for the drive to work in a
>normal PC. Because you can bet that some drive (or most drives!) won't
>implement anything else.
I'd agree from my experience. I'd add the 2.5" drive are less likely too.
>> willing to believe that the interface will not assert IOCS16- if the
drive's
>> interface is programmed to operate in 8-bit mode. I would expect that if
I
>
>The term 'interface' is ambiguous here. IOCS16/ is asserted by the drive,
>not by the bus adapter card.
True! I built the interface on the assumption it would be asserted to
save logic.
>The bus adapter simply buffers the signal (most of the time) and sends it
>to the ISA slot. In particular, note that the address decoder logic on
>the bus adapter is not what asserts IOCS16/
Correct, those assert CS lines.
>AFAIK, a standard IDE drive only asserts IOCS16/ for accesses to the data
>register. Not for accesses to any of the control/status registers. Which
>means all of those are seen as 8-bit registers.
Yep. That mas a 8<>16 adaptor simpler as it's only reads and writes to one
address that need folding.
>> MSI-implemented IDE channels don't have the means to operate in that
mode.
>
>See above. The bus adapter should do the right thing provided the drive
>asserts IOCS16/ at the right time. The TTL bus adapter cards are just a
>couple of buffers and an address decoder (normally a PAL, but it doesn't
>have to be).
Actually this is only important to obscure hardware as the software knows
a data register read/write is 16bit (word) and that all other registers are
byte.
I think the idea was that IOCS16 was to notify byte oriented logic to handle
the 16bit transfer (ISA-8).
Allison
>
>-tony
>
> > I can't help with your question, but you may want to post it on
> >comp.sys.ibm.ps2.hardware....
>
>Yes, that was going to be my next move....as you say they're VERY helpful
>over there!!
Heres a PS2/50z question.
Mine only has 1meg, looks like 72pin simm but none I have seem work.
All of them happen to be 8x32 (16chip).
There is only one SIMM socket. What is the limit for ram (max)?
Where can I get something bigger than 1mb?
As my internal network progresses this box has value as I have a SMC 10bt
NIC for it. I figure OS/2 warp V3 or Win3.1 would be a good os for it.
Being 286 there are few unix based OSs with a networking that run well on
it.
That and its just too silly not to.
Allison
[For those that don't read acquisition reports, there's a parts search
request at the bottom!]
Whee, what a pleasant week or so it's been. :-) Found a local guy
selling a mono NeXT slab about a week ago -- I've been meaning to pick
up one of these for *years* but never really got around to it. So I
pick it up, and it's got an N4000A monitor. Now, for those that don't
know NeXT, the phosphor in the 4000s and 4000As is relatively
low-life. Like any Unix machine, NeXTs tended to be left turned on,
and there was no way to turn the display off when the machine was on
(power being supplied through the monitor cable). So, the displays by
now tend to be quite dim. So, the seller pulls it out of the closet
and it's under about half an inch of dust. He apologizes for the
condition, and explains that a local university bought it but only
used it three months before putting it in storage, and he bought it
>from the university for a ridiculously low price but never used it
himself. So, with the dust out of the way, I find myself with what is
basically a brand-new NeXTstation! Were that not enough, it was a
*steal*, and then as I was leaving, the seller goes "Oh, I should give
you the documentation" and comes out with a NEXTSTEP Academic Bundle
(with Developer and Mathematica) and a documentation library.
So then today, a week later, I stop by my old faculty to pick up a Sun
386i that they were about to throw out ("Hey, better I decide to get
rid of it than you", I say). I'm carting the machine out the door
(alas, stripped of disks) and one of the technicians goes "You know, I
think we have some documentation for that". There was too much for me
to take; by the time we finished going through the storage room I'd
found the original 19" mono display, a full documentation set, the
system's purchase orders and maintenance history ($3500 for a 300mb
disk, anyone?), an expansion cabinet, and two boxes of looseleaf Sun
documentation about a foot square each, labeled "Owner's Supplement"
(but containing all sorts of hardware docs for sun-3, -4, and 386i)
and "Toolkit Documentation Set" (which appeared to be the equivalent
for software and drivers) and two bags of disks and tapes. All free!
So I still need to pick up a keyboard, which should be easy; but I'm
having a hard time tracking down the Y-cable for the 386i that goes
between the framebuffer card and the monitor and keyboard. It's a
501-1244 mono hi-res framebuffer and a 540-1062 monitor; anyone know
of a source for these cables?
-Rich
--
------------------------------ Rich Lafferty ---------------------------
Sysadmin/Programmer, Instructional and Information Technology Services
Concordia University, Montreal, QC (514) 848-7625
------------------------- rich(a)alcor.concordia.ca ----------------------
>I wonder why we never had access to this stuff at work, I'm sure it
would've
>been of some help.
only if you could find what you sought. ;-P
>Yes, I'd be using NT4 myself except that I cannot run DVE (Vectrex
emulator)
>under it. I haven't tried it under Win2K Professional yet, but I'm none too
>hopeful.
I'm running NT4ws and things I was told would not run seems to work fine!
Even Gcadd6.1 (a PITA even under dos) runs smoothly. Then again I'm not
running AGP video (using a PCI 2mb S3 board).
>One thing I will say about Win2K is that it seems to be far more stable
than
>any other M$ OS on my hardware thus far. NT4 was giving me memory faults
>when running OE5, Win95 is flaky at best and Win98 wouldn't run for more
>than 4 or 5 minutes without "freezing" up completely. Sigh.
Well, there is a message there.
Memory faults??? doesn't this sugggest something to you? I'd start with the
hardware setup. You may have bad ram, some device that is abusing the
bus. or just maybe something is misconfigured. FYI there is a patch for W95
if your using a AMDk6-2/300 or faster (timing race condition in w95 breaks).
That was after I fofund the board didn't want to run PC100 but did run PC66
as stable.
That is an example of what subtle things can screw a system up. While I
don't love w95 I have 40 clients running it and for the most part one burp a
week among them all is the common thing and often reboot solves that. I've
found office97 to be more troublesome. Then again, we don't run games and we
dont run IE5.0 for obvious reasons. I'd look at that system for problems
that make it unstable. Video drivers are commonly a problem, and some sound
drivers are painful. the worst problem we have are things like ODBC drivers
that leak, solution is a once perday stop/restart of Coldfusion on the NT
server. Over the last year I've spent a lot of time debunking the
rebilability myth and NT3.51 can be stable and so can W95. The work was
finding all those gremlin apps, drivers and some hardware that didn't work.
Then installing W95 correctly in some cases. MS code is not as robust as
I'd like but if it falls over too often then you have a different problem.
W95 is at least three versions with OSR2.1 (aka 95c) being the latest W95
and win 98 is really 95 with bug fixes and enhancements and currently OSR2
is the latest. W98 is more stable than 95 and has some debugging functions
to help. Upgrades are available, W98 OSR2 is free for download if you have
W98! NT4 is really improved 3.51, same deal, more stable ONLY if SP4
or later is installed. However bad apps and bad hardware will get you even
with Linux, faster as it uses hardware harder! Start with good hardware.
I'm not a MS lover, though it makes me a living now. I have foudn one thing
that was true when I was hacking PDP-8s and later 8080s.
Don't blame the cow for soggy cereal.
Allison
> > There is only one SIMM socket. What is the limit for ram (max)?
> >Where can I get something bigger than 1mb?
>
>Interesting, my Model 50 has a pair of SIMM sockets on the planar. They
look
>more like 30-pin SIMMs than 72-pin ones, but I haven't taken them out to
>check yet. Also, I've never seen SIMMs like these before - the PCB is a
>brown/beige colour, and the RAM chips are in small silver "cans" rather
than
>the usual black epoxy.
Ok, there are two merged messages there to start with.
Also there are two versions of the PS/2M50 one is like yours and uses two
simms. the other is like mine a 50Z that uses one. the 50z is also 286
powered but was designed for no memory wait states. It's a tiny bit faster.
At onepoint I had working examples of both, I kept the 50Z and geve the
other away.
>Anyway, I suspect you'll find that the limit for RAM (on the
>motherboard/planar/whateveryouwanttocallit) will be 2Mb. IBM used to make
>these wierd, double sided, 2Mb 72-pin SIMMs specifically for some models in
>the PS/2 family.
Thats what some one else already said.
>I remember these SIMMs distinctly since around 10 years ago they used to
>sell for practically nothing on FidoNet as they were of no use whatsoever
in
>anything but a PS/2.
Figures.
Allison
>Any idea where I can find one of these IBM ESDI drives, the one from my
>Model 50 is missing and I want to restore the machine to it's original
>configuration?
If its mod 50 then not EDSI but RLL or MFM. I have one of the MFM ones
with a few bad blocks.
Allison
>The coding, unfortunately, is not similar enough to the 1003-wah to make
the
>code directly portable, but there are simply more registers in the IDE.
The only additional register is the FDC control hence the second CS.
I used the 1003spec as I had that for writing code as it was more complete.
>from what I could see for drives that were smaller than 500mb the two are
identical. for larger dirves that could be different (things like LBA and
all).
Allison
On Apr 17, 18:06, Nick Oliviero wrote:
> Jeffrey l Kaneko wrote:
>
> > BTW-- Are RL02's a maintainance nightmare? Do the advantages
> > of these drives outweigh the problems (not to mention their *size*,
> > or are they simply not worth it?
>
> I'll second Tony's comments re:maintenance&alignment. We've had two
> RL01's running on a 11/23 since 1980 and one RL02 on a 11/45 since
> 1991 and I can recall just one head crash in all that time. I'm no longer
> on the maintenance side, but I don't believe anyones changed the filters
> in the last 5 years. (I am not recommending this aproach)
Same sort of story with my pair of RL02s; they're not really in continuous
use, though they were for about 4-5 years, haven't had a filter change in
ten years, and they live in the garage. The only real incident was when a
spider decided that nice warm drive was a good place to live, made its home
amongst the heads, and came to a sticky end when the drive was spun up.
--
Pete Peter Turnbull
Dept. of Computer Science
University of York
On Apr 17, 22:09, Peter Pachla wrote:
> >> It's a nice machine, but of little use with nothing but the OS
> >>installed. :-(
>
> > True :-) I've possibly got things that you might have a use for. It
> >depends on what you're interested, obviously. What would you like to
do?
>
> Initially, the main things I'm interested in are learning about the
system
> architecture and getting an assembler for it so I can try out ARM
assembly
> language.
Ah, well I might have an assembler somewhere -- there were two flavours:
one produced executable object code directly (I think) and the other
produced object modules which could be linked with modules produced by
high-level languages such as C, Fortran, and Pascal. I'm sure some of the
remaining Acorn web and/or FTP sites, like Stuttgart or HENSA, still have
instruction set lists.
But you don't even need that to get going -- BBC BASIC V contains a
reasonable 2-pass ARM assembler. It works just like the 6502 assembler in
BBC BASIC II (et al). Here's a sample so you seen what I mean (don't ask
me exactly how it works, it's intimatley bound up with the interactions
between the desktop palette, the OS palette, and the hardware palette, and
anyway I wrote this 12 years ago :-)):
REM part of palette control program for RISC OS 2.0
DIM code% 408
PROCassemble
REM main program loop here
REM followed by several other procedures/functions
DEF PROCsupremacy
CALL getpal : REM read actual colour mapping
D%=colour% : REM R3=colour%
H%=windowhandle% : REM R7=windowhandle%
CALL do_sup
ENDPROC
DEF PROCassemble
LOCAL cnt,sup,bm,sptr,vptr,val,ptr,ccol,sp,link,pass%
ptr=1 : ccol=3 : cnt=6 : sp=13 : link=14 : REM windowhandle passed in
R7
sup=10 : bm=4 : sptr=5 : vptr=8 : val=9 : REM arbitrary register
choice
log=0 : phys=1 : bpp=4 : wptr=5 : tmp=9
FOR pass%=0 TO 2 STEP 2
P%=code%
[ OPT pass%
.do_sup STMFD (sp)!, {link}
ADR sptr, supremacy% ; set up pointers
ADR vptr, vpalette%
LDR sup, [sptr] ; get supremacy word
MOV bm, #&80 ; supremacy bit mask
MOV R0, #12 ; for OSWORD 12
; In case of moving from 16-colour mode to 256-colour mode,
; we need all the clrs separate from all the sets - because
; several colours may share one physical palette register
ADD ptr, vptr, #95 ; ptr to last vpalette entry
MOV cnt, #19 ; counter
.clr TST sup, bm, LSL cnt ; s-bit for this palette entry
LDRB val, [ptr, #1]
AND val, val, #&7F
STRB val, [ptr, #1]
SWI "OS_Word"
SUB ptr, ptr, #5
SUBS cnt, cnt, #1
BPL clr
; Do sets after clrs to ensure that if any colour in a group
; is set, all will be. If we did set/clr together, might
; finish a group with a clear.
ADD ptr, vptr, #95 ; ptr to last vpalette entry
MOV cnt, #19 ; counter
.set TST bm, sup, LSR cnt ; s-bit for this palette entry
LDRNEB val, [ptr, #1]
ORRNE val, val, #&80
STRNEB val, [ptr, #1]
SWINE "OS_Word"
.next SUB ptr, ptr, #5
SUBS cnt, cnt, #1
BPL set
; If there is a current colour, and it should be clear, then
; we need to clear it explicitly in case it's been set as part
; of a group which is set
TST ccol, ccol ; see if there IS a current colour
BMI newsup
ADD ptr, ccol, ccol, ASL#2 ; if so, point to vpalette%+ccol*5
ADD ptr, ptr, vptr
LDRB val, [ptr, #1] ; get logical colour
ORR val, val, #&80
TST sup, bm, LSL ccol ; should it be set ?
ANDEQ val, val, #&7F ; clear supremacy if not
STRB val, [ptr, #1]
SWI "OS_Word"
; now we re-get supremacy in case of interactions above
.newsup ADD vptr, vptr, #95 ; ptr to final vpalette entry
MOV cnt, #19 ; counter
MOV val, #0
.nsloop LDRB R0, [vptr] ; logical colour
LDRB R1, [vptr, #1] ; supremacy+programming info
AND R1, R1, #&7F ; just programming info
SWI "OS_ReadPalette"
AND R2, R2, #&80 ; return just supremacy
ADD val, R2, val, LSL#1 ; shift into new supremacy word
AND R0, bm, sup, LSR cnt ; corresponding bit in old word
TEQ R0, R2 ; see if same
BLNE toggle
SUB vptr, vptr, #5
SUBS cnt, cnt, #1
BPL nsloop
STR val, [sptr]
LDMFD (sp)!, {PC} ; pop PC to return
.toggle ADR R1, wimp%+1024
SUB R1, R1, #1024
STR R7, [R1] ; wimp%!0=windowhandle%
STR cnt, [R1, #4] ; wimp%!4=icon% or cnt (ie R6)
CMP cnt, #16
MOVLT R11, #&00000005 ; depending on which icon,
MOVGE R11, #&77000000 ; change different things
STR R11, [R1, #8] ; wimp%!8=icon flags EOR word
MOV R11, #0
STR R11, [R1, #12] ; wimp%!12=icon flags clear word
SWI "Wimp_SetIconState"
MOVS pc, link
.getpal MVN R0, #0 ; get bits-per-pixel for mode#-1
MOV R1, #9
SWI "OS_ReadModeVariable"
MOV bpp, R2 ; save Log2BPP
ADR wptr, wpalette%
MOV R1, wptr
SWI "Wimp_ReadPalette" ; get wimp palette mappings
ADR vptr, vpalette%
ADD vptr, vptr, #95
MOV cnt, #19
.pal CMP cnt, #16
LDRMIB log, [wptr, cnt, LSL#2] ; get colour programming info
ANDPL log, cnt, #7 ; for 16-19, log=cnt MOD 16
MOVMI phys, #16
MOVEQ phys, #24
MOVHI phys, #25
BPL lc_ok
CMP bpp, #3 ; if 256 colours, GCOL => LogColNo
ANDEQ tmp, log, #&40
ANDEQ log, log, #7
ADDEQ log, log, tmp, LSR#3
.lc_ok STRB log, [vptr]
SWI "OS_ReadPalette"
BIC R2, R2, #&1F ; correct physical colour
ADD R2, R2, phys
MOV tmp, #3
.byte STRB R2, [vptr, #1]! ; save RGB, prog info, supremacy
MOV R2, R2, LSR#8
SUBS tmp, tmp, #1
BPL byte
SUB vptr, vptr, #9
SUBS cnt, cnt, #1
BPL pal
MOV pc, link
; claims upcall to permit OS_ChangeDynamicArea
; as it does no checking, it must only be enabled immediately prior
; to calling OS_ChangeDynamicArea, and disabled immediately
thereafter
.upcall MOV R0, #0
LDMFD R13!, {PC}
]
NEXT pass%
ENDPROC
--
Pete Peter Turnbull
Dept. of Computer Science
University of York
On Mon, 17 Apr 2000 12:35:56 -0400 (EDT) allisonp(a)world.std.com writes:
> > Has anybody ever ripped the Low Level formatter
> > from the XXDP+ diskpack and put the needed components
> > onto a floppy (of some sort)?
> >
> > I'm contemplating attempting to do this myself,
> > but in case it's been done already, I'd just as
> > soon as not re-invent the wheel.
>
> It's doable. You need to create a bootable XXDP disk and copy the
> required formatter to it. not much more than that required.
I figured as much; I was just probing to see if anyone had already
done it.
BTW-- Are RL02's a maintainance nightmare? Do the advantages
of these drives outweigh the problems (not to mention their *size*,
or are they simply not worth it?
Jeff
________________________________________________________________
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Hello, all:
This weekend I finished archiving my Mac diskette collection. I copied them
to the hard drive of my Mac SE as a safety maneuver. Once I have a little mo
re time, I'll make images of them on the gs, move the images to the PC and b
urn a CD of them.
Anyway, I found two diskettes which have unrecoverable errors. If anyone ha
s these that they can image and send my way, I'd appreciate it:
Microsoft Basic Interpreter, version 2.10 (single disk)
Microsoft Basic Interpreter, version 3.00 (disk 2 of 2)
Thanks again.
Rich
[ Rich Cini
[ ClubWin!/CW1
[ MCP Windows 95/Windows Networking
[ Collector of "classic" computers
[ <http://highgate.comm.sfu.ca/~rcini/classiccmp/>
<================ reply separator =================>
>I seem to remember that the IDE standard that I read said that the
>command/status registers were all 8 bits (and mapped to the lower 8 data
>lines). Only the data register was 16 bits, and the drive would assert
>I/OCS16 when that was accessed and at no other time. Of course I have no
>idea how modern drives handle this...
This is still true for all the ones I've worked with (up to 528mb). Based
on how the larger ones work in older systems they should be identical. The
emulation is supposed to be WD1003 controller and based on the work I've
done with them
it rings true. This is why every 8bit system example you see the data path
is folded somehow to 8bits.
While reading the spec I discovered that Set_IO_8bit command and did a,
Wow this will help. Never could make it do what is written in the spec. I
suspect the drive never read the spec. If it worked I'm sure the 8bit
community
like those that did the GIDE, COCO IDE and others would have jumped on that.
Allison
I've been sorting through a large pile of Shugart 800's and 801's here,
and many of them have goo on the head stepper lead screw. It looks
like white lithium grease, undoubtedly put there by a previous owner
or all-thumbs tech, as the Shugart manuals say (section 3.3):
Do not lubricate the SA800/801; oil will allow dust and dirt to
accumulate.
However the goo got there on the leadscrew, it's so thick now that it's
quite difficult to turn it - not only is the stepper motor not up to the
job, I can barely turn it by hand in some cases.
I have found that "Liquid Wrench" (yes, that stuff you get at the auto
parts store) does a pretty good job of at least softening the goo temporarily,
enough so that I can actually run the drive through diagnostics,
but eventually the solvents evaporate and I'm left with thick goo. Is
there an easy way to clean this goo off without completely disassembling
the stepper motor/leadscrew assembly and doing the subsequent realignment?
I can go in and do a half-assed job of cleaning the goo off the threads
with Q-tips and skewers, but there's really a lot there and this doesn't
get it all.
--
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
As an aside to the 8-bit IDE thread, I was wondering whether anyone knew
where I could find the specification for the Matsushita CD-ROM interface
used on Panasonic and Creative Labs drives?
I have a "CR-562-B" I'd like to interface to a non-PC machine you see....
TTFN - Pete.
--
Hardware & Software Engineer. Sound Engineer.
Collector of Arcade Machines, Games Consoles & Obsolete Computers (esp DEC)
peter.pachla(a)wintermute.org.uk | www.wintermute.org.uk
--
In a message dated 4/14/00 11:30:19 PM Eastern Daylight Time,
allisonp(a)world.std.com writes:
> Heres a PS2/50z question.
>
> Mine only has 1meg, looks like 72pin simm but none I have seem work.
> All of them happen to be 8x32 (16chip).
>
> There is only one SIMM socket. What is the limit for ram (max)?
> Where can I get something bigger than 1mb?
>
> As my internal network progresses this box has value as I have a SMC 10bt
> NIC for it. I figure OS/2 warp V3 or Win3.1 would be a good os for it.
> Being 286 there are few unix based OSs with a networking that run well on
> it.
>
> That and its just too silly not to.
the only version of OS2 that will work on the mod50 is 1.3. any OS2 version
with built in windows support requires 386 or higher. you can put in various
memory cards to goto max supported mem of 16meg. plus, the hard drive has bus
attachment with only 160meg size being the biggest i've seen.
DB Young ICQ: 29427634
view the computers of yesteryear at
http://members.aol.com/suprdave/classiccmp/museum.htm
--You can lead a whore to Vassar, but you can't make her think--
-----Original Message-----
From: Peter Pachla <peter.pachla(a)wintermute.org.uk>
> > Actually the documentation is good but also there is tons of it worse
> >than the vax grey wall if you try to get it all in one place....
>
>That's very interesting, both the local college and factory I worked at had
>support contracts with M$ but we were unable to get much more information
>than what comes in the "user guide" out of them.
Between technet Cdroms and microsoft press I have far more info about NT3.51
then I can possible use and yet I can't find what I need when (or
even around when) I need it. it's so convoluted and random as to be
useless.
The gray wall at least has a useful index and the structure for the gray is
the same as the orange before it. But then again you pay $3000 for VMS!
Then again I paid nearly that for NT4 and 50 clients... and got that horrid
0.250 inch thick thing the call a book and all the helpfines I can stand on
CDrom.
>I must admit, I'm a little concerned with the way things are headed in the
>Linux world right now. But then at least the underlying OS is lean and
>stable and you can pare down your installation any way you want. My recent
>Win2K test installation, OTOH, came in at well over 600Mb, and insisted on
>installing piles of stuff which I neither want nor use (like the
>accessibility options) with no way of uninstalling them....without going to
>a LOT of trouble anyway.
True, and all the bugs too! Thats why I went with NT4, it's finally mature.
Allison
On Apr 2, 19:44, Peter Pachla wrote:
> Actually, do you know of any sites which cover the A4000?
>
> I got one about 6 months back, and despite asking in the appropriate
> newsgroups have been unable to find any useful sites on the web thus far
-
> all the ones I was pointed at were either no longer there or were of
> manufacturers of hardware for RiscPCs....
>
> It's a nice machine, but of little use with nothing but the OS installed.
> :-(
True :-) I've possibly got things that you might have a use for. It
depends on what you're interested, obviously. What would you like to do?
Is there any extra hardware (I expect not much, as an A4000 is baically an
A3000 re-boxed)?
--
Pete Peter Turnbull
Dept. of Computer Science
University of York
