>From: "Patrick Rigney" <patrick(a)evocative.com>
>
>> It currently takes
>> about 40H+ of code to enter ( in octal for Heath monitor ).
>> I might find some code in the ROMs that does this
>> part for me. This is a little long but there is not much
>> I can do about it.
>
>> Any suggestions on things I might want to add?
>> Dwight
>
>Dwight,
>
>Hmmm... interesting. I have an idea... How about borrowing a concept from
>bootloaders in general? Shorten the program that you have to key in by hand
>to just a short bootstrap loader that reads bytes from the serial port and
>stuffs memory. The PC-side program's job, then, is to *first* send the
>*real* larger downloader down the line before the disk image data, which the
>bootloader stuffs into memory and then executes to read the image data that
>then follows. I'm not sure how much shorter the bootloader could be than
>40H, but I have to imagine a good bit since no disk I/O is needed at that
>stage, and it would certainly facilitate the bigger duplicator app being
>much larger without much hassle to the operator.
>
>Patrick
>
Hi Patrick
Reread my post. That is just about all it does. It does
have to initialize the port and that takes more than about
half the code. The loop that loads the memory is quite short.
The com port on the H89 is a 8250 and so needs a bunch of stuff
setup. To load a value into the port I/O takes 3 to 4 bytes,
regardless of how it is done. I suspect I can strip a little
but I doubt I can take out more than about 10%.
One thing I haven't tried is to use the Z80 I/O instructions
and have a table of things to output in sequence. This might be
shorter.
Anyway, I've made it so that I can optimize it more after
I get the rest of the functionality of the main code.
There is a small amount of extra because I've not used a fixed
load address or fixed size. I could shorten it a little and
keep it flexable by only writing the load address. One would
write the bytes backwards from there. At some point, the
JMP instructions address would be over written by my new load code.
The address of the high byte would be the same, just the
low byte part of the address would change, directing the
code to the newly loaded code. This would simplify the load
loop since no count needs to be maintained ( a trick I learned
form my Nicolet 1080's bootstrap ).
I'll make another pass at the code and publish what I have.
Others can then look at it for optimizations.
Dwight
I have a Plus Hardcard 40 and a 80286-20 ISA single board ISA card
available. These look to be in good shape and probably function properly.
Best offer, prefer Paypal.
Thanks Norm
Is anyone here familar with these drives? I was checking some HP 1000s today and making particular note of what boot roms they contained. One of them had a label that said that it had a boot rom for the "7905/20 disk". I checked my references and found that these drives are supposed to use the Amigo/MAC protocall. I know that a lot of the older HP floppy drives (9885, 82901/902, 9121, etc) also use the Amigo prototcall. I'm wondering if that means that this 1000 can boot from one of those floppy drives. How compatible is the 7905/7920 Amigo protocall and the Amigo protocall that's used for the floppy drives?
Joe
I'm looking for two items to complete my omnibot 2000. I need the remote
control and the tray. Also the cardboard base would be nice to have. If
anyone has these items to sell or trade let me know off line. Thanks
Hi
I've started looking at how to make a H89 disk
transfer program that would allow one to make images
of the hard sectored disk into a DOS file. I've
had my H89 powered up and thought I'd pass on one
of the first problems I came across ( other than
one of the tantalums popping ). The belts on the
floppy drives have all stretched. Only about half
of my floppies would read. Since I don't have the
original full height drive, the drives I do have
had no adjustment for belt tension( they were ALPS
single sided drives, half height ). I had to file the
motor mount holes to get the drives to work well with the
pile of disk I have. Anyway, this is something to
watch for in the older drives.
Now, onto the more useful stuff. I've written some
bootstrap code that allows me to pass a program
into the H89 from a serial port. The code to do this
take a reasonable amount of space because of the need
to initialize the serial port. It currently takes
about 40H+ of code to enter ( in octal for Heath monitor ).
I might find some code in the ROMs that does this
part for me. This is a little long but there is not much
I can do about it. I am using the LP serial port of the H89
since it runs with a 1:1 wiring of a PC serial port ;)
The idea is that the first 4 bytes will contain
the address and count to load. The rest will be
the actual code. When it finishes the counted bytes,
it will automatically switch to the down loaded code.
This next code is expected to perform the functions of
format, disk image write and disk image read.
This will be used as the next level of bootstrapping.
I've got notes on all of the entry points to control
the H17 disk controller so I can do the various disk
operations. There is one problem I have now and that
is that the HDOS disk all have a thing called 'Volume
Number'. I expect that this was so that one could avoid
trashing other disk ( HDOS uses a mount/dismount system ).
The difficulty is that the first track is always volume
0 and the others are the particular volume number selected
for that disk. In order to read or write, one needs to
know the volume number for that disk. This is encoded on
the disk, similar to things like sector number and
track number. I haven't figured out how HDOS knows
what volume the disk is by looking at the first track.
I suppose it is someplace there. I suspect that
I may want to format the disk as I write the image so
that I can pass the volume number along. I'm not sure
if it is a good idea or not to keep the original
volume number. One might want to have new volume numbers
for each disk in their collection.
Still, I am making progress. Hopefully, this will
make sending and archiving HDOS disk easier. Any
suggestions on things I might want to add?
Dwight
I am still being harrassed once again by Sellam.
I am posting this to the list so that members can
observe for themselves the behavior of one of it's
members...
Here is the text of his latest message...
-----------------------------------------------------
Message 4:
The next time you send me a message I will report you
to the FBI for harassment and violating my civil
rights. You have called me an "Islamic Idiot" one
time too many and I will not stand for this anymore.
This is hate speech!
I am forwarding your messages to colleagues at the
ACLU and will pursue the matter legally if you
continue to send me your vitriolic hate
speech.
-----------------------------------------------------
I look forward to speaking to representatives of the
ACLU and FBI and presenting factual data of this list
user's continual hate and harrassment of me.
I'm sure there are several other list members who have
been harrassed by Sellam who would like to do likewise
(Contact me off the list if you'd like to do that).
I'd like the fantasies and harrassment to stop.
I have NEVER attacked Sellam over his religious
beliefs, and never would.
I have commented on Nastiness of Radical Islamics in
Afghanistan, Iraq, Iran, and other Middle Eastern
Countries. There lies the hate and intolerance.
But, I would plead guilty to being intolerant of
intolerance... LOL!
I'd much rather be dicussing some cool Classic
Computers...
The first weekend of May is the Trenton Computer
Festival (oddly held in Edison, New Jersey rather than
Trenton...). I'm looking forward to the Flea Market,
as I do every year.
Though sadly, each year the flea is dominated more and
more by PC's and less by cool classic computers.
I'm still hoping to get some Amiga Equipment, and a
TRS-80 Model I/III/4 for my collection. And possibly
anything for my Atari ST. But, there wasn't much there
last year. Mostly because I think the price for a Flea
Booth is too expensive for most people to sell the few
things they have.
It's a shame Ken Gore bought the rights for this show
>from the original User's Group that ran it. They've
made it less special and smaller in recent years.
Regards,
Al Hartman
I am being harrassed once again by Sellam.
I am posting this to the list so that members can
observe for themselves the behavior of one of it's
members...
Here are the texts of his messages...
-----------------------------------------------------
Message 1:
Shut up you fucking dickhead. Quit fanning the flames
on the list you
filthy scum.
Message 2:
Shut your filthy scum hole you nationalistic servant
of American
facism.
You're part of the reason for the decline of this
nation and the
destruction of the world that is coming upon us.
Go find a dirty little hole befitting for your kind,
crawl into it, and
pull a rock in behind you.
Your stink is overwhelming.
Message 3:
The next time you send me a message I will report you
to the FBI for
harassment and violating my civil rights. You have
called me an
"Islamic Idiot" one time too many and I will not stand
for this
anymore.
This is hate speech!
-----------------------------------------------------
The claim I called him an "Islamic Idiot" is totally
fictional. I used the term in a reply to message #2,
but was referring to people in the Radical Islamic
Community who hailed the explosion of the Space
Shuttle as Punishment from Allah to the U.S.
I predicted that would happen, and then got attacked
on and off the list by Sellam. Who somehow takes the
actions of other people of the Islamic faith
personally. In that people who criticizing them are
also criticizing him...
I just want the list to know how nasty and awful
Sellam is. Just for those few of you who might not.
And to give those of you who have written to me about
him off-list some more data for your files..
I am currently reporting him to his ISP for
harrassment.
Thanks!
Al Hartman
Hi, I've found this
http://www.classiccmp.org/pipermail/cctech/2002-July/000553.html
searching for technical specs about the expansion ports of the PPC640.
In it you write "I have both the (software) technical manual and the service
manual."
Can you please look at the manuals, for the pinout of expansion ports A anc B?
My interest is about this statement:
"2) The PPC has an expansion bus which can be turned into normal
PC-compatible (8 bit) slots, so you can have an external display adapter"
The expansion bus is the ISA-8bit bus? Can I use it (rewiring it) for connect
a ISA card?
TIA, and sorry for my English. ^_^;
--
The disadvantage of working over networks is that you can't so easily go into
someone else's office and rip their bloody heart out. (Jim McDonald)
Chaps,
Cars: I love classic cars & motor racing, that's why I subscribe to one
mailing list & several newsgroups. I rarely read about classic computers in
those.
Politics: I detest politics & politicians, this is why I neither subscribe
to related mailing lists or newsgroups.
Hate mail: Never had any, never sent any, probably never will.
Classic computers: Love 'em, that's why I subscribe to this list, and
several newsgroups.
I've got my cars elsewhere. I've got my classic comps here. I don't want
politics or hate mail. Can we keep it on topic please? You Know Who You Are.
And finally: Please please please DO NOT reply to this message. Ever.
Thanks.
--
Cheers, Ade.
Be where it's at, B-Racing!
http://b-racing.com
Hi
I think this show why we should keep both political
and religious comments out of our text and even our
signature lines. This group is really intend to be
a classic computer list. There are plenty of other
news groups and mail list that one can go out and
pick fights in.
I know that most people feel strongly about things.
It is good that they voice their opinions. It is just
that this is not the place.
Dwight
> With
>the computerization of manufacturing that's available, it makes no
>sense to me why auto manufacturers can't stamp out any body part, for
>any car, from any year, on demand.
Can't they?
Eons ago, when I owned a 65 T-Bird and was rebuilding it (a failed
project), I was told by a Ford Dealer that Ford can make ANY part for the
car if I request it. However it was going to cost a bundle as they had to
retool to make the parts. (The conversation was specifically revolving
around body panels and interior body parts... so engine and other
mechanical parts may not be included... I didn't clarify as I wasn't able
to afford used parts much less factory new).
-chris
<http://www.mythtech.net>
>The first weekend of May is the Trenton Computer
>Festival (oddly held in Edison, New Jersey rather than
>Trenton...). I'm looking forward to the Flea Market,
>as I do every year.
Anyone have a URL with info on the Festival?
I missed it last year, and am thinking heavily of going this year, but
would like to find out more info before I pen in the date.
-chris
<http://www.mythtech.net>
----- Original Message -----
From: "Joe" <rigdonj(a)cfl.rr.com>
To: <cctech(a)classiccmp.org>
Sent: Monday, April 07, 2003 6:12 PM
Subject: 3.5" floppy drive in IBM XT?
> I picked up an old IBM XT today and it has a 3.5" floppy drive in
it (and it works!) Anybody ever heard of this? The drive has
it's own controller card and both it and the drive appear to be IBM
parts. )I haven't pulled everything apart to be sure.) FWIW the
computer also has a FH 5 1/4" floppy drive and a HH 5 1/4" 10 Mb hard
drive with a Seagate logo on the front of it. Anybody know if
this is an original XT hard drive or a replacement drive? It's been so
long since I've seen an original XT with the 10 Mb drive that
I don't remember much about it.
>
> Joe
I have a highly original late production XT, with the 640k system board,
720k hh floppy, 360k hh floppy, and full height IBM 20mb hard drive.
Interesting features include a Y cable to power both floppy drives from
the PSU connector (Y cable has black wires, and a cloth tag with IBM
part number 6480173). Also, the 720k drive has a plain blue eject
button. The 3.5" drives from the PS/2 series were labelled 1.44m or
2.88m as appropriate. The 360k drive has an asterisk on it, just like
on the optional AT 360k drive. Apparently the IBM convention for 5.25"
drives was that if it was a full height floppy, drive then it was 360k,
if it was a half height drive it was assumed to be 1.2M, unless it had
an asterisk, then it was 360k.
Mueller's book says that the 640k system board, XT 20M hd, half height
360k drive, and 720k drive were introduced in April, 1986.
Hope this helps solve the mystery....
--
Jim
Visit the Selectric Typewriter Museum!
http://www.mindspring.com/~jforbes2
It's nothing spectacular...
I have several IBM Model 76's sitting around my office (in storage) and I
thought I would try to replace the couple of remaining dumb terminals that
are all dying a slow death. I found a couple of these 3270 cards in an old
box a couple of years ago so I built a PC DOS 5.0/IBM PC3270 disk image on
one of the PCs. I built two and they still work beautifully ! I would have
built more but I could find no more cards and there wasn't much of a
demand. These are very sturdy machines (The IBM 76 and 77 Models) and I
would love to put more of them back in service. I admit I have a
sentimental attachment to them and have on several occasions had to make
excuses to keep others from tossing them.
So it's not critical... but if I can accomplish this I will be quite happy.
Peace to you as well.
- Michael
At 01:35 PM 4/13/2003 -0400, vance(a)neurotica.com wrote:
>What kind of project is it?
>
>Peace... Sridhar
>
>On Thu, 10 Apr 2003, JunkMale wrote:
>
>
> > I am looking for one or more IBM 3270 Microchannel cards for a pet
> project of mine.
> >
> > Thanks for your time,
> > Michael
Hi again...been awhile!
I got hold of the remains of a computer my dad built (with the help of
us kids, college age at the time) about 1980 or so. It's a 6809 S-100
bus system, with a microdasys MDA-6809A processor board, and a Solid
State Music VB1B video interface board. It also uses a Jameco JE610
ASCII keyboard.
The computer was stored in a shed where rats got in, and chewed away all
the wires connecing the cpu board to the case keyboard connector. So, I
need to figure out how to wire it back up. I also need to build a power
supply, although I might be able to use a bench supply I borrowed from
my brother...but it only provides 2 amps per side (dual supply, 0-30vdc).
Any scans of microdasys or SSM data shemetatics would be incredibly
helpful...but if you have links to sites with S-100 bus info, that would
also be a help.
I'm on digest mode, so expect delays...
Thanks!
--
Jim
Visit the Selectric Typewriter Museum!
http://www.mindspring.com/~jforbes2
>Have a mac classic that I gave to one of the local kids a few months
>back. Apparently a visiting friend was fiddling with it and
>has somehow gotten it into magnify mode. IIRC, it's system 7.something.
>Can't figure out how to turn it off. It's on maximum
>magnfiy apparently, can only see a very tiny part of anything, even a
>single word takes more than the entire screen which makes it
>real hard to use the GUI.
>Is there a keyboard shortcut that will turn the $%^& thing off??
They have accidentally activated CloseView, a control panel designed to
magnify the screen for people with vision problems.
To deactivate it, type Command-Option-O (hold the command key, that's the
cloverleaf, apple key, the option key, and the letter O all at the same
time).
To permanantly disable it, remove the CloseView icon from the Control
Panels folder and reboot the Mac.
-chris
<http://www.mythtech.net>
Does anyone remember what the last update to System 7.5.x was? I'm in the process of getting my old PowerBook 540c (purchased used a few years ago to replace the 520c I wore out) setup to use as a 'typewriter', and noticed that I've got it running System 7.5.3.
Zane
--
--
| Zane H. Healy | UNIX Systems Administrator |
| healyzh(a)aracnet.com (primary) | OpenVMS Enthusiast |
| | Classic Computer Collector |
+----------------------------------+----------------------------+
| Empire of the Petal Throne and Traveller Role Playing, |
| PDP-10 Emulation and Zane's Computer Museum. |
| http://www.aracnet.com/~healyzh/ |
From a Mac Swap list. Please contact NeptuneMidheaven(a)ao;.com for
further info.
Jim
-------- Original Message --------
Subject: [swap] FS: BCS-MAC newsletters
Date: Sun, 13 Apr 2003 15:01:54 EDT
From: NeptuneMidheaven(a)aol.com
To: <lem-swap(a)mail.maclaunch.com> (LEM Swap List)
Would like to see these go to a good home rather than the trash.
Eight vintage editions of "The Active Window" BCS-MAC newsletter (Boston
Computer Society Macintosh Users' Group Magazine). In mint condition.
7/87
12/87
2/88
5/88
6/88
7/88
10/88
1/89
How about $3.00 for all & media mail shipping (weight 2+ pounds) from 02368.
Paypal verified (non cc only)
NeptuneMidheaven(a)aol.com
Ebay ID: Cattastro
--
LEM-Swap is sponsored by and...
123Inkjets.com
Support Low End Mac
LEM-Swap list info:
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Send list messages to:
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---------------------------------------------------------------
>The Think Different Store
http://www.ThinkDifferentStore.com
---------------------------------------------------------------
.
Bryan Blackburn <oldcomp(a)cox.net> wrote:
> I'm not suggesting it is! What I am subtly suggesting, is that if
> you think the company is still in business, or would still recognize
> the product name, send them a check. More power to you! I stopped
> using the software when the hardware it was specifically designed to
> work with became obsolete, well over a decade ago. (Probably about a
> year or two after the company went out of business.)
Gibson Research is still in business, and still sells Spinrite.
http://grc.com/spinrite.htm
-Frank McConnell
I've just finished putting some HP computer and disk drive manuals on E-bay. I previously listed some HP software manuals and I'll be adding more as time permits. <http://cgi6.ebay.com/ws/eBayISAPI.dll?ViewSellersOtherItems&userid=rigdonj>.
Also listed a NEW unassembled Heathkit kit on there if anyone is intersted.
Joe
>Pirating is not something that should be condoned on this list.
I don't want to start a battle, so I'm not going to comment beyond this
email...
but... shouldn't "pirating" be something that IS condoned on this list?
At least under the idea of "abandonware". After all, without some degree
of software piracy, it is highly unlikely that a good chunk of the
hardware this list is interested in would have any useful software
available to it.
I very much support the idea of abondonware, and I would think that idea
is very much in this list's interest. However, it is in many cases still
piracy.
-chris
<http://www.mythtech.net>
I took Doug's advice and called Tom Fischer who took over IMSAI's
operations when they went bankrupt.
The number of IMSAI's produced is as follows:
"According to a July 2002 e-mail from the IMSAI 8080 creator Joe Killian,
"I remember passing the 17,000 mark. I believe it never went past 20,000"
[between December of 1975 and September 1979]. Fischer-Freitas Company
produced another 2100+ machines between November 1979 and June 1986.
These machines can be identified by the Fischer-Freitas Company back panel
label."
This is right on the front page of imsai.net. More detailed information
can be found here:
http://www.imsai.net/history/imsai_history/imsai_pre_history.htm
These numbers are not broken down by front panel vs. turnkey system, so
it's still not readily known what the split was in terms of those counts.
IMSAI also sold a number of other machines. Here's a nice summary (still
being edited by Tom so some inaccuracies exist):
http://www.imsai.net/support/imsai_systems.htm
--
Sellam Ismail Vintage Computer Festival
------------------------------------------------------------------------------
International Man of Intrigue and Danger http://www.vintage.org
* Old computing resources for business and academia at www.VintageTech.com *
Found another HP 1000! Third one in three weeks. I think this one is a keeper. Got ALL the cables including the AC power cables, the interface panel, the CPU (2113E with option 065) and 1 MW of memory, boot loader ROMs for HP 264x terminal, CS-80 hard drives and HP 79xx disk drives, plenty of interface cards and a HP 12979 I/O Expander chassis. Best of all, this one was untampered with so everything was there and where it was suppsoed to be and I was able to mark where all the cables, etc all went to. The only thing that I've found wrong with it so far is two broken switches on the front panel from where they kicked it off the truck! It had a 7914 hard drive attached but I left it behind. I've never found one worth taking home. Pictures at <http://home.cfl.rr.com/rigdon14/hp1000/>.
Joe
