--
bill bradford
mrbill_at_mrbill.net
austin, texas
--__--__--
Message: 2
Date: Sat, 18 Jan 2003 16:58:47 -0500
Subject: Re: Got the second batch of -11 equipment
From: Dave McGuire <mcguire_at_neurotica.com>
To: mrbill_at_mrbill.net, cctech_at_classiccmp.org
Reply-To: cctech_at_classiccmp.org
On Saturday, January 18, 2003, at 04:11 PM, Bill Bradford wrote:
> Anybody want two RL02s (by the way, how the hell do I get the top
> covers
> open? The "switch" on the top wont budge), and two RL01s? Pickup in
> Austin, Texas..
The top door latch on an RL drive is locked by a solenoid. Apply
power to the drive, make sure the "load" button is out, wait for a
"click" (the load light will come on) then you should be able to
squeeze that little slide handle and open the top cover.
I would really like to have the RL02s but I have no idea how I'd get
them from you. :-(
-Dave
--
Dave McGuire "She's a cheek pincher. I have scars."
St. Petersburg, FL -Gary Nichols
--__--__--
Message: 3
Date: Sat, 18 Jan 2003 10:23:31 +0000 (GMT)
From: =?iso-8859-1?q?Jules=20Richardson?= <julesrichardsonuk_at_yahoo.co.uk>
Subject: Re: Update: BBC Acorn
To: cctalk_at_classiccmp.org
Reply-To: cctech_at_classiccmp.org
>> just checked mine again and it's 25-ANC13-1000049
>>
>Mine is 25-ANC13-1000034, and Rob O'Donnell said his is 25-ANC13-1000038.
well if Rob's was the last then they obviously didn't do a very good job of
numbering things :-) Unless Rob's was the last one released by Acorn, but
they
all sat in storage for a while...
> Do either of you think you have a Disc 1 for it?
no discs at all I'm afraid :-( hence why I was asking about whther there's
a
sensible ftp site to put them on so if a working set can be collected at
least
they can be archived somewhere (the same goes for manuals really, but
scanning
those would be a major pain I expect!)
that used to be the problem - the hardware used to get thrown out but discs
would lie around on shelves until someone did a bit of spring cleaning now
and
then; they would have been trashed seperately and maybe straight into a bin
in
the office :-(
cheers
Jules
(who has too many systems that don't work for lack of necessary discs :-)
__________________________________________________
Do You Yahoo!?
Everything you'll ever need on one web page
from News and Sport to Email and Music Charts
http://uk.my.yahoo.com
--__--__--
Message: 4
Date: Sat, 18 Jan 2003 11:37:37 GMT
From: pete_at_dunnington.u-net.com
To: cctalk_at_classiccmp.org
Subject: Re: PET 2001 oddity
Reply-To: cctech_at_classiccmp.org
On Jan 17, 18:18, Adrian Vickers wrote:
>
> Unfortunately, the PET seems to have developed an odd fault: It won't
take
> a BASIC program, and some keywords seem to be knackered...
> So.... I figure the BASIC ROM has become slightly corrupted, OR I've got
a
> flakey memory chip which reads OK but doesn't write properly. The
question
> is, how to find out?
Swap some of the RAM chips around and see if it makes a difference. If it
does, particularly if it fixes it, swap them back -- it might just be a bad
socket contact. Be careful with the RAM chips: if you have the type of PET
I think you do, they're MOS Technology 6550, aka unobtainium, and unlike
any other RAM chip.
> 1) Can the BASIC ROM be swapped with one from, say, a 3032 or 4016? In
> fact, which one IS the BASIC ROM?
No. BASIC (and also the rest of the code, whether you call it a kernel or
a monitor, or "stuff") is spread over several chips. And in the early
PETs, the ROMs too are MOS Technology specials, and the different versions
of PETs had different ROMs. In fact, there was an upgrade for the
originals, because they didn't handle the IEEE routines properly, which
made it impossible to use disks properly (amongst other things).
> 2) If it's a dodgy memory chip, what's the best way of isolating it? I
have
> an oscilloscope, but nada skill in this sort of thing.
> 3) If, as my money is on, it's the BASIC ROM, can it be replaced with an
> EPROM - if so, there's a whole gamut of additional questions to
follow....
If it's a later unit with 24-pin 2332 mask ROMs, then a TMS2532 EPROM can
be used (not a 2732, nor other 2532s that don't have the TMS prefix). If
it's got 28-pin MOS Technology MPS6540 ROMs, you'd need a carrier to
shuffle some signals, at the very least, and possibly some logic to handle
the multiple select lines. The good news, though, is that I have a
chicklet-keyboard 2001-N as well, and if necessary, I could probably do a
ROM dump for you (though IIRC it used to be on the 'net somewhere). I
wouldn't need to move more than a few hundreweight of stuff to get at it
;-)
--
Pete Peter Turnbull
Network Manager
University of York
--__--__--
Message: 5
From: "Antonio Carlini" <arcarlini_at_iee.org>
To: <cctalk_at_classiccmp.org>
Subject: RE: MV3100 M90 / VAX 4100 (was: VXT X terminal question)
Date: Sat, 18 Jan 2003 11:48:41 -0000
Organization: me_at_home
Reply-To: cctech_at_classiccmp.org
> Wow! I thought the CQBIC was not populated on the KA50.
I'm fairly sure the mainboards are identical (i.e. the same part
number).
I've never been inside a VAX 4000-100 so I've never had the
chance to personally check this, but the last time I saw a
parts list, the part numbers were the same.
> Hmm. I do not suppose that this identity flag can be
> permanently stored anywhere other than in the firmware flash
> ROM. I'm sure DEC wouldn't want people to suddenly discover
> that their machine shape-shifts when the NVRAM battery is
> disconnected. So does this console test actually erase and
> reprogram a sector in the firmware flash ROM, or is the
> change only in effect until the next power cycle?
It's stored in the flash EPROM - it rewrites it as
part of the test (and warns you not to switch off
while it is doing so). The change is permanent (until
you run the test again and switch back).
I doubt HP care whether customers know this or not now. I
doubt they cared even back then: switching from a UV3100-90
to a VAX 4000-100 didn't get you anything extra (unless
you paid for a new case) and it did cost you more
in licence fees. Switching the other way disabled Qbus
and DSSI, so although your licence cost you less, you
got less for it. And if you wanted the cheaper licence
you would have bought the cheaper machine anyway!
Antonio
--
---------------
Antonio Carlini arcarlini_at_iee.org
--__--__--
Message: 6
Date: Sat, 18 Jan 2003 13:28:22 +0000
To: cctalk_at_classiccmp.org
From: Adrian Vickers <avickers_at_solutionengineers.com>
Subject: PET 2001 oddity - solved!
Reply-To: cctech_at_classiccmp.org
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Woohoo!
Turned out to be dead simple; yet another blown 2114.
I figured the chip _at_ $0400 (i.e. the start of BASIC) was faulty, seeing as
how the machine wouldn't take a single line of BASIC. So, I swapped the
appropriate bank out to another bank - and presto! BASIC worked again.
Having done this, I then swapped *one* of the two chips (according to the
schematic, there are two chips for each $0400 block of memory - why is
this?) back to its original spot, and presto again - no BASIC. Swapped that
chip for the one remaining spare, and presto^3! BASIC again.
So, now I need more 2114's as an insurance policy...
Meanwhile, I thank the list *again* for their invaluable help (Ethan, Mike
& Pete in particular in this case). What would I do without you (except
preside over a collection of steadily failing machines)?
--
Cheers, Ade.
Be where it's at, B-Racing!
http://b-racing.com
--=======74632786=======--
--__--__--
Message: 7
From: "Antonio Carlini" <arcarlini_at_iee.org>
To: <cctalk_at_classiccmp.org>
Subject: RE: Musings on BabyVAX video
Date: Sat, 18 Jan 2003 12:06:37 -0000
Organization: me_at_home
Reply-To: cctech_at_classiccmp.org
> I thought so too. But what about SPX? Can it go into a
> pre-M76 VS3100? And what about VS2K SPX? (It would of course
> be very silly in practice, but I'm talking in principle.)
SPX will go into KA42s - although I don't know for sure whether
it was ever sold and supported. It will probably plug into a
VS2K but I have no idea whether it will work (or whether anything
would run on it without more code being written).
> So I thought that KA42 had one big CDAL-to-EDAL bridge
> upfront and the rest of the system except memory was EDAL.
> But I could be wrong, maybe different subsystems have their
> own independent connections to CDAL.
You are probably right - I just threw in "as necessary" because
I don't have a KA42 block diagram handy (in fact, I may not have
one at all - there is not much info floating around on these
and the early UVAX 3100 systems).
> But if KA42 indeed has one big CDAL-to-EDAL bridge upfront,
> the million dollar question becomes: why did the VS4000 M90
> dev team toil to design their own CDAL-to-EDAL bridge (CEAC)
> if there already was one? The only plausible explanation I
> could come up with is that perhaps on KA42 the CDAL-to-EDAL
> bridge was inseparably integrated with the memory controller.
I don't know why they rolled their own. Given that they used
or modified existing designs where possible, I assume that there
were good reasons. Perhaps the existing design was too slow or
took up too much room (this latter consideration was definitely
very important for the -90).
> BTW, I have never found any references to a technical manual
> for VS3100 (any
> model) or for the corresponding early MV3100 models. It looks
> like one never existed. Do you have any more info?
No - and I could never find any even while I was inside
DEC. There must have been *some* such documentation
but it was nowhere I could find.
> Does KA43 have memory on CDAL or on RDAL? I once had one in
> my hands and when I looked on the board to see what chips it
There's not a lot of technical info on the KA43 either!
> Yeah, maybe that was the change. (Was that a typo or was
> EDAQL a chip converting EDAL to SPX's internal bus?)
Typo.
>
>http://www.research.compaq.com/wrl/DECarchives/DTJ/DTJ402/DTJ402SC.TXT
>
>But it talks about the X aspects of it and says nothing about VXT2000
hardware.
Yes, I've read that one and it's not the one. I was sure that there was
an article describing the VXT2000 itself, but I guess since I cannot
find it either on the web or in my docs, I must have
imagined it. Oh well.
Antonio
--
---------------
Antonio Carlini arcarlini_at_iee.org
--__--__--
Message: 8
From: "Antonio Carlini" <arcarlini_at_iee.org>
To: <cctalk_at_classiccmp.org>
Subject: RE: Hobbled NVAX (was: VXT X terminal question)
Date: Sat, 18 Jan 2003 12:11:19 -0000
Organization: me_at_home
Reply-To: cctech_at_classiccmp.org
> I assume the NVAX microcode was patched via its PCS facility
> by the boot firmware, not by making a different NVAX die with
> different microcode I hope, right? If so the abomination is
I assume so too.
> to be reversed by reflashing the boot ROM with non-hobbled
> firmware (stolen from a friend with a non-hobbled machine).
> They had flash ROMs like all other NVAXen, right?
I doubt that non-hobbled firmware exists. I doubt you
could just use the UV3100-96 firmware upgrade on a
UV3100-85 and have it work. In fact, I guess the firmware
is the same but it looks at the machine's hardware (e.g.
size and config of backup cache or something like that)
to determine what it is running on, and disables the VIC
if it thinks the machine is a UV3100-85.
The easiest thing to do would be to try reenabling the VIC.
If that is not enough, you would have to find the bit of code
that disables the VIC and NOP it out. I doubt that the code
was protected too much: it would have been way beyond most
customers' ability to alter it.
Antonio
--
---------------
Antonio Carlini arcarlini_at_iee.org
--__--__--
Message: 9
Date: Sat, 18 Jan 2003 12:49:24 +0000
To: cctalk_at_classiccmp.org
From: Adrian Vickers <avickers_at_solutionengineers.com>
Subject: Re: PET 2001 oddity
Reply-To: cctech_at_classiccmp.org
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At 06:41 18/01/2003, Ethan Dicks wrote:
>--- Adrian Vickers <avickers_at_solutionengineers.com> wrote:
> > I dug the 2001 out of the cupboard the other day...
>
>Can you give more information about *which* 2001 you have? There
>are at least two major motherboard revisions for the static-RAM PETs.
>They use different ROMs and RAMs.
OK, I can but try....
According to the sticker on the back, this is a 2001-8BS. The motherboard
layout appears to be the same as the one pictured on www.zimmers.net on the
4k/8k layout. I've taken some photos of my motherboard, which can now be
found here:
http://helmies.org.uk/images/cbm2001/mobo_front.jpg
http://helmies.org.uk/images/cbm2001/mobo_back.jpg
http://helmies.org.uk/images/cbm2001/mobo_side.jpg
NOTE: Each picture is approx 449K = long download over a modem!
>Also, as I have one, there are also models of 2001 that have _dynamic_
>RAMs. My 2001-N has 32K worth of 4116 chips (from the factory) and a
>full-sized graphic keyboard. If it were for sale in Europe, it would
>most likely been labelled a 3032, for comparison, but here in the States,
>it says "2001" on the front.
>
>I bring it up because I _think_ you are talking about the original
>chicklet-keyboard SRAM PET, but you didn't come right out and say so.
Apologies, I didn't; I keep forgetting that the 2001 went through more
development than perhaps any of the other PETs. Yes, it is a chicklet
keyboard version, with static RAM (2114's) and original 28-pin MOS ROMs.
>
> > Unfortunately, the PET seems to have developed an odd fault: It won't
> > take a BASIC program, and some keywords seem to be knackered...
>.
>.
>.
> > So.... I figure the BASIC ROM has become slightly corrupted, OR I've
got
> > a flakey memory chip...
> >
> > 1) Can the BASIC ROM be swapped with one from, say, a 3032 or 4016?
>
>Most likely not. If your 2001 has 2114 SRAMs, perhaps. There are
>upgrade ROMs (BASIC 2.0, anyway) _for_ the 2001
Personally, I'd rather keep this one as original as possible, i.e. keep the
original (buggy) ROMs. However, if it means keeping it working, then I'm
prepared to substitute the MOS ROMs with a board/set of boards containing
more modern EPROMs wired appropriately containing the original images. Not
that I've got a clue how to go about doing that, mind...
> > In fact, which one IS the BASIC ROM?
>
>BASIC lives in several ROMs, the Kernel lives in several ROMs. BASICs
>prior to 4.0 occupied $C000-$DFFF, and the Kernel occupied $E000-$FFFF,
>minus the PIAs and VIAs, etc., at $E800. BASIC 4.0 starts at $B000
>to add room for diskette commands.
>
>In my PET, $9000, $A000 and $B000 are filled with user-supplied firmware
>(better machine-language monitor, BASIC extensions and a tape speeder).
>These sorts of things, plus ROMs for word processors and other
applications
>were somewhat typical amongst serious PET users. Dunno if yours has
>anything like that, but if you find ROMs where you expect none to be,
>that's probably why.
Well, there are no unpolulated sockets, so perhaps it's a fair bet that
there's some extra stuff in there. Goodness knows what, though, all the
ROMs are MOS 6540's.
> > 2) If it's a dodgy memory chip, what's the best way of isolating it? I
> > have an oscilloscope, but nada skill in this sort of thing.
>
>The typical way of testing RAMs in a C= service center was to rotate
>a pair of them from bank to bank and see if the symptoms shift. It
>was especially handy for detecting zero page problems.
Figures :( I've had to do this once already to locate a broken 2114 (when
I got the machine, it claimed only 1600 bytes of memory were free).
Luckily, I have one more spare 2114 (I got two from someone on this list, I
forget who [for which I apologise] and thank them (again) profusely, as if
it is a broken 2114, there's a chance the second spare might be essential).
Anyway, if it *is* a failing RAM chip, my guess is it's the one which sits
near the bottom of BASIC memory, since the first line number causes a
crash. Does anyone have a map showing the correlation between memory
addresses & specific chips?
If it's on the schematics, I'll be looking there next (so no need to answer
that question).
<snip the rest for brevity>
Ta for that, all good info!
Thus, the order of the day is:
1) Try to determine which 2114 chip might have gone bad, either by
sequenced swapping or by trying to be clever with the schematics.
2) If that doesn't fix it, re-seat all ROMs.
3) If that doesn't fix it, go to plan C - which doesn't exist yet...
Also, I know this has been asked & answered before, but what's the best way
of cleaning the board? It has more dust on it than I am properly
comfortable with, and besides it looks horrible.
I'm guessing that *ideally* it should be washed in distilled water with a
very soft brush, then left in a warm place to dry thoroughly. OTOH, maybe
alcohol would be a better idea? I have some disc head cleaning alcohol
which would suffice - recommendations please!
>Good luck,
Thanks - I'm going to need that (in place of specific skills :)
>P.S. - if you don't know about http://www.funet.fi/pub/cbm/ it's a
>great site with schematics and firmware.
I already knew of it, but had forgotten how useful it might be. Will check
that out next. Ta!
--
Cheers, Ade.
Be where it's at, B-Racing!
http://b-racing.com
--=======54493991=======--
--__--__--
Message: 10
Date: Sat, 18 Jan 2003 12:55:43 +0000
To: cctalk_at_classiccmp.org
From: Adrian Vickers <avickers_at_solutionengineers.com>
Subject: Re: PET 2001 oddity
Reply-To: cctech_at_classiccmp.org
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At 11:37 18/01/2003, you wrote:
>On Jan 17, 18:18, Adrian Vickers wrote:
> >
> > Unfortunately, the PET seems to have developed an odd fault: It won't
>take
> > a BASIC program, and some keywords seem to be knackered...
>
> > So.... I figure the BASIC ROM has become slightly corrupted, OR I've
got
>a
> > flakey memory chip which reads OK but doesn't write properly. The
>question
> > is, how to find out?
>
>Swap some of the RAM chips around and see if it makes a difference. If it
>does, particularly if it fixes it, swap them back -- it might just be a
bad
>socket contact. Be careful with the RAM chips: if you have the type of
PET
>I think you do, they're MOS Technology 6550, aka unobtainium, and unlike
>any other RAM chip.
Hi Pete,
It's not *quite* as bad as all that, it uses 2114's. Although they're not
made of unobtainum, they ARE made of "rareium" (or R_at_RE!ium on eBay -
probably the *WOW* *L_at__at_K* isotope, knowing my luck :).
> > 1) Can the BASIC ROM be swapped with one from, say, a 3032 or 4016? In
> > fact, which one IS the BASIC ROM?
>
>No. BASIC (and also the rest of the code, whether you call it a kernel or
>a monitor, or "stuff") is spread over several chips.
Damn, I just *knew* it wouldn't be that easy.
> And in the early
>PETs, the ROMs too are MOS Technology specials, and the different versions
>of PETs had different ROMs.
AFAICT, these are version 1 ROMs. Every socket is filled, and they're all
MOS6540s.
>If it's got 28-pin MOS Technology MPS6540 ROMs, you'd need a carrier to
>shuffle some signals, at the very least, and possibly some logic to handle
>the multiple select lines.
Harrumph. Guess which one it has...
Still, I've no fear of making carriers, etc. - albeit time constraints &
lack of equipment will make it tough right now - at least until I can get
my MicroMAT going.
>The good news, though, is that I have a
>chicklet-keyboard 2001-N as well, and if necessary, I could probably do a
>ROM dump for you (though IIRC it used to be on the 'net somewhere). I
>wouldn't need to move more than a few hundreweight of stuff to get at it
>;-)
That might be cool (and *snap* about the tons of stuff, although having
seen your little collection I think you do have rather more to shift about
than me!). However, let me try out the RAM swapping & chip re-seating
first, and if that doesn't fix it, then we'll look into EPROMs & suchlike.
--
Cheers, Ade.
Be where it's at, B-Racing!
http://b-racing.com
--=======37E27F29=======--
--__--__--
Message: 11
Date: Sat, 18 Jan 2003 05:40:46 -0800 (PST)
From: Kenneth Donchatz <kendonchatz_at_yahoo.com>
Subject: Apple Macintosh- where would this be useful?
To: cctalk_at_classiccmp.org
Reply-To: cctech_at_classiccmp.org
--0-1341891654-1042897246=:19979
Content-Type: text/plain; charset=us-ascii
I have a 13 year old apple macintosh that works like a dream. It's loaded
with programs, and this great little machine got me through law school and
helped me launch my career. When my employer switched over to a compaq
system, I could no longer use this machine to work on projects at home and
was forced to pick up an etower package instead. For the last 5 years,
it's sat in my basement waiting. Everything works perfectly, including the
printer, and all of the parts are original. Any tips on where I might take
this machine so that it can be used? It's a shame to let it sit here and
rot.
Ken Donchatz
kendonchatz_at_yahoo.com
Columbus, Ohio
---------------------------------
Do you Yahoo!?
Yahoo! Mail Plus - Powerful. Affordable. Sign up now
--0-1341891654-1042897246=:19979
Content-Type: text/html; charset=us-ascii
<P>I have a 13 year old apple macintosh that works like a dream. It's
loaded with programs, and this great little machine got me through law
school and helped me launch my career. When my employer switched over
to a compaq system, I could no longer use this machine to work on projects
at home and was forced to pick up an etower package instead. For the
last 5 years, it's sat in my basement waiting. Everything works
perfectly, including the printer, and all of the parts are original.
Any tips on where I might take this machine so that it can be used? It's a
shame to let it sit here and rot. </P>
<P>Ken Donchatz </P>
<P><A href="mailto:kendonchatz_at_yahoo.com">kendonchatz_at_yahoo.com</A></P>
<P>Columbus, Ohio</P><p><br><hr size=1>Do you Yahoo!?<br>
<a
href="http://rd.yahoo.com/mail/mailsig/*http://mailplus.yahoo.com">Yahoo!
Mail Plus</a> - Powerful. Affordable. <a
href="http://rd.yahoo.com/mail/mailsig/*http://mailplus.yahoo.com">Sign up
now</a>
--0-1341891654-1042897246=:19979--
--__--__--
Message: 12
From: Cameron Kaiser <spectre_at_stockholm.ptloma.edu>
Subject: Re: Apple Macintosh- where would this be useful?
To: cctalk_at_classiccmp.org
Date: Sat, 18 Jan 2003 06:09:47 -0800 (PST)
Reply-To: cctech_at_classiccmp.org
> I have a 13 year old apple macintosh that works like a dream.
Which model?
--
----------------------------- personal page:
http://www.armory.com/~spectre/ --
Cameron Kaiser, Point Loma Nazarene University *
ckaiser_at_stockholm.ptloma.edu
-- Of course I run NetBSD. ---------------------------------------------
-------
--__--__--
Message: 13
Date: Sat, 18 Jan 2003 15:34:45 GMT
From: pete_at_dunnington.u-net.com
To: cctalk_at_classiccmp.org
Subject: Re: PET 2001 oddity - solved!
Reply-To: cctech_at_classiccmp.org
On Jan 18, 13:28, Adrian Vickers wrote:
> Turned out to be dead simple; yet another blown 2114.
>
> I figured the chip _at_ $0400 (i.e. the start of BASIC) was faulty, seeing
as
> how the machine wouldn't take a single line of BASIC. So, I swapped the
> appropriate bank out to another bank - and presto! BASIC worked again.
Good!
> Having done this, I then swapped *one* of the two chips (according to the
> schematic, there are two chips for each $0400 block of memory - why is
> this?)
A 2114 is 1K x 4 bits wide, so they're used in pairs to make bytes.
--
Pete Peter Turnbull
Network Manager
University of York
--__--__--
Message: 14
Date: Sat, 18 Jan 2003 15:11:59 GMT
From: pete_at_dunnington.u-net.com
To: cctalk_at_classiccmp.org
Subject: Re: PET 2001 oddity
Reply-To: cctech_at_classiccmp.org
Hi, Ade.
On Jan 18, 12:55, Adrian Vickers wrote:
> It's not *quite* as bad as all that, it uses 2114's. Although they're not
> made of unobtainum, they ARE made of "rareium" (or R_at_RE!ium on eBay -
> probably the *WOW* *L_at__at_K* isotope, knowing my luck :).
Good! If it *is* a RAM fault, and you can't find one at a reasonable
price, let me know. I think I still have a small number spare.
> AFAICT, these are version 1 ROMs. Every socket is filled, and they're all
> MOS6540s.
Drat. Let's hope it's not a ROM fault. Sadly, my copy of "The PET
Revealed" with its mostly-legible (!) circuit diagrams, shows the later
board with 2332s. But I do have a copy of the MPS6540 pinout somewhere.
> Harrumph. Guess which one it has...
>
> Still, I've no fear of making carriers, etc. - albeit time constraints &
> lack of equipment will make it tough right now - at least until I can get
> my MicroMAT going.
>
> >The good news, though, is that I have a
> >chicklet-keyboard 2001-N as well, and if necessary, I could probably do
a
> >ROM dump for you (though IIRC it used to be on the 'net somewhere). I
> >wouldn't need to move more than a few hundreweight of stuff to get at it
> >;-)
>
> That might be cool (and *snap* about the tons of stuff, although having
> seen your little collection I think you do have rather more to shift
about
> than me!). However, let me try out the RAM swapping & chip re-seating
> first, and if that doesn't fix it, then we'll look into EPROMs &
suchlike.
OK. Give me shout if you want me to start burrowing. Or come and pay a
visit...
--
Pete Peter Turnbull
Network Manager
University of York
--__--__--
Message: 15
Date: Sat, 18 Jan 2003 15:29:23 GMT
From: pete_at_dunnington.u-net.com
To: cctalk_at_classiccmp.org
Subject: Re: PET 2001 oddity
Reply-To: cctech_at_classiccmp.org
On Jan 18, 12:49, Adrian Vickers wrote:
> At 06:41 18/01/2003, Ethan Dicks wrote:
>
> >I bring it up because I _think_ you are talking about the original
> >chicklet-keyboard SRAM PET, but you didn't come right out and say so.
>
> Apologies, I didn't; I keep forgetting that the 2001 went through more
> development than perhaps any of the other PETs. Yes, it is a chicklet
> keyboard version, with static RAM (2114's) and original 28-pin MOS ROMs.
> Well, there are no unpolulated sockets, so perhaps it's a fair bet that
> there's some extra stuff in there. Goodness knows what, though, all the
> ROMs are MOS 6540's.
Then there's no extras. The MOS Technology 6540 ROMs are half the capacity
of the 2332s in later boards, so there are seven of them in a standard PET
and no spare sockets.
> Figures :( I've had to do this once already to locate a broken 2114
(when
> I got the machine, it claimed only 1600 bytes of memory were free).
> Luckily, I have one more spare 2114 (I got two from someone on this list,
I
> forget who [for which I apologise] and thank them (again) profusely, as
if
> it is a broken 2114, there's a chance the second spare might be
essential).
I think it was me (and I think you already said thankyou :-))
> Also, I know this has been asked & answered before, but what's the best
way
> of cleaning the board? It has more dust on it than I am properly
> comfortable with, and besides it looks horrible.
>
> I'm guessing that *ideally* it should be washed in distilled water with a
> very soft brush, then left in a warm place to dry thoroughly. OTOH, maybe
> alcohol would be a better idea? I have some disc head cleaning alcohol
> which would suffice - recommendations please!
Start by vacuuming it with a powerful vacuum and a soft, small, paintbrush
(about 1/2" - 1") to help disldge the dirt. You might not need to wash it
after that. It's not too important for a board like this, but the air
rushing through a plastic vacuum nozzle can generate a surprising amount of
static, so ideally the nozzle should be conductive, and grounded.
If you do wash it, use some detergent, do not get it too hot, rinse with
distilled water and a *very small* amount of wetting agent (to help the
water drain). Blowing off the excess with low-pressure compressed air
and/or rinsing in IPA or meths (which mix with water and helps remove it)
may also be a good idea. Do make sure you get all the water out of places
like IC sockets, switches, and connectors, as residues may eventually lead
to corrosion.
In extreme cases, or where I've had a lot of boards to clean, I've used the
dishwasher -- but do not let the dishwasher do the normal drying cycle as
it's too hot for safety. Some dishwashers seem to use very hot water, too,
and some types of PCB and some types of plastic don't like that. Don't use
a dishwasher on boards that have non-sealed relays, transformers, paper
labels, etc.
--
Pete Peter Turnbull
Network Manager
University of York
--__--__--
Message: 16
From: "Fred deBros" <fdebros_at_verizon.net>
To: <cctalk_at_classiccmp.org>
Subject: RE: Musings on BabyVAX video
Date: Sat, 18 Jan 2003 10:34:21 -0500
Reply-To: cctech_at_classiccmp.org
I'm pretty sure that a VS3100-76 with no graphics board *will* come up
using onboard monochrome (use the green signal).
I don't think I've ever actually used one this way, but I do
know that the GPX and SPX options came with a little stick-on
panel that said either "GPX" or "SPX" in about the right size
and font to stick right after the "VAXstation 3100 M76" nameplate.
Mine does and it is just a matter on which pin you pick it up in the
back of the box! I'd have to go to my office to ck it again.
Fred
--__--__--
Message: 17
Date: Sat, 18 Jan 2003 15:42:37 GMT
From: pete_at_dunnington.u-net.com
To: cctalk_at_classiccmp.org
Subject: Re: Update: BBC Acorn
Reply-To: cctech_at_classiccmp.org
On Jan 18, 10:23, Jules Richardson wrote:
> > Do either of you think you have a Disc 1 for it?
>
> no discs at all I'm afraid :-( hence why I was asking about whther
there's a
> sensible ftp site to put them on so if a working set can be collected at
least
> they can be archived somewhere (the same goes for manuals really, but
scanning
> those would be a major pain I expect!)
Well, someone else has offered to copy Disc 1 for me. I've also found a
few other people who have ARM Evaluation Systems, so once I get a good Disc
1, I'll put the set of six on my website (and if anyone from any of the
Beeb sites wants to make a copy, that's fine by me). Any suggestions as to
format to use for the images?
I've also just been told that the production run of ARM (not ARM2) chips
was 2000. I know some were used in-house for other types of development
system (like the A500) and more were used for Springboard (an ISA card, the
PC equivalent of the ARM Development System), so 50 or 100 seem likely
numbers for the quantity of ARM Development Kits made to fit Beebs.
--
Pete Peter Turnbull
Network Manager
University of York
--__--__--
Message: 18
Date: Sat, 18 Jan 2003 10:09:30 -0600 (CST)
From: Doc Shipley <doc_at_mdrconsult.com>
To: cctalk_at_classiccmp.org
Subject: RE: Musings on BabyVAX video
Reply-To: cctech_at_classiccmp.org
On Sat, 18 Jan 2003, Antonio Carlini wrote:
> > I thought so too. But what about SPX? Can it go into a
> > pre-M76 VS3100? And what about VS2K SPX? (It would of course
> > be very silly in practice, but I'm talking in principle.)
>
> SPX will go into KA42s - although I don't know for sure whether
> it was ever sold and supported. It will probably plug into a
> VS2K but I have no idea whether it will work (or whether anything
> would run on it without more code being written).
I'll look when I get home (next month), but I'm pretty sure one of my
VS3100 m38 machines was labelled SPX from the factory.
Doc
--__--__--
Message: 19
Date: Sat, 18 Jan 2003 15:21:03 +0100
From: Jochen Kunz <jkunz_at_unixag-kl.fh-kl.de>
To: cctalk_at_classiccmp.org
Subject: Re: VXT X terminal question
Reply-To: cctech_at_classiccmp.org
On Fri, Jan 17, 2003 at 11:38:58PM -0000, Antonio Carlini wrote:
> Obviously you have to have a Qbus extension cable and some way
> of connecting it - the easiest way is a VAX 4000-1xx cab :-)
Well, the enclosure is the same. It is only a set of additional
connectors on the back an internal cabling. At least I interpreted
pictures of a VAX4k105 this way. But all I need is the pinout.
Building some cables is no problem and I have a QBus backplane
from a dead and rotten BA23.
> > Sad that I have not the QBus cabling for my MV3100m95. A 83
> > MHz NVAX (32 VUPs?) desktop VAX wirh QBus would be nice.
> It would indeed. The VAX 4000-1xx range is something that
> I only rarely got to play on. But there are plenty of
> other Qbus boxes around.
I have a MV II, MV III, MV3900, MV4k200, VAX4k300, VAX4k400
and a PDP11-73. Enough QBus boxen to play. OK. I miss a KA640
based machine. But none of them brings that power in that small
footprint and is easy to interface to lots of storage, i.e.
SCSI.
--
tschu?,
Jochen
Homepage: http://www.unixag-kl.fh-kl.de/~jkunz
--__--__--
Message: 20
Date: Sat, 18 Jan 2003 12:29:24 +0100
From: Jochen Kunz <jkunz_at_unixag-kl.fh-kl.de>
To: cctalk_at_classiccmp.org
Subject: Re: VXT X terminal question
Reply-To: cctech_at_classiccmp.org
On Sat, Jan 18, 2003 at 10:50:58AM +0100, Fred N. van Kempen wrote:
> I have the Ultrix V4.50 source tree [no comment] and will be porting it
to
> the M76, *and* (which is my target) my beloved 4000-700A.
Someone on the PUPS / TUHS list has ported 4.3BSD-Tahoe and / or
4.3BSD-Reno to the VAX4000-7xx. AFAIK he had some porblems with
interrupts at autoconfig time, but got it running.
--
tschu?,
Jochen
Homepage: http://www.unixag-kl.fh-kl.de/~jkunz
--__--__--
Message: 21
From: "Philip Pemberton" <philpem_at_dsl.pipex.com>
To: <cctalk_at_classiccmp.org>
Subject: BBC Micro - assemblers - info needed
Date: Sat, 18 Jan 2003 16:16:39 -0000
Reply-To: cctech_at_classiccmp.org
Hi all,
I've just downloaded three assemblers from the ROM archive at
http://bbc.nvg.org . Catch is, none of them include manuals. I've got
copies
of:
VASM65 v2.0E by Vida Rebus
ASM 1.10 by SYSTEM (claims to be the "ASM 6502 Macro assembler V1.10",
"Copyright (C) 1984 SYSTEM"). Contains text strings like "Press play", so
may be a tape->ROM conversion.
ROMAS 3.02 by TBK Associates (full copyright string = "ROMAS 3.02
(C)1985 TBK Associates - S.C."
Has anyone here got any documentation for these assemblers? I'd like to
get at least one of them to assemble *something*. Perhaps a "Hello World"
program?
Also, Vasm outputs Intel Hex files from what I can gather - does anyone
here have an Intel Hex -> Binary converter for the BBC Micro?
Finally, does anyone know how some discs were formatted so they were
compatible with 40-track and 80-track disc drives?
Thanks.
--
Phil.
philpem_at_dsl.pipex.com
http://www.philpem.dsl.pipex.com/
--__--__--
Message: 22
Date: Sat, 18 Jan 2003 09:07:36 -0800 (PST)
From: "Peter C. Wallace" <pcw_at_mesanet.com>
To: cctalk_at_classiccmp.org
Subject: RE: Musings on BabyVAX video
Reply-To: cctech_at_classiccmp.org
On Sat, 18 Jan 2003, Antonio Carlini wrote:
> > I thought so too. But what about SPX? Can it go into a
> > pre-M76 VS3100? And what about VS2K SPX? (It would of course
> > be very silly in practice, but I'm talking in principle.)
>
> SPX will go into KA42s - although I don't know for sure whether
> it was ever sold and supported. It will probably plug into a
> VS2K but I have no idea whether it will work (or whether anything
> would run on it without more code being written).
I have a few VT1300's with SPX badges and SPX cards inside, so at least the
Xterm verison of the KA42/SPX seems to have been supported...
Peter Wallace
--__--__--
Message: 23
Date: Sat, 18 Jan 2003 09:23:06 -0800 (PST)
From: Sellam Ismail <foo_at_siconic.com>
To: <cctalk_at_classiccmp.org>
Subject: Re: IBM 5322
Reply-To: cctech_at_classiccmp.org
On Fri, 17 Jan 2003, Tony Duell wrote:
> The System 23 I briefly worked on (as in 'got inside') had a DE9
> connector for the printer IIRC. It was a _current loop_ serial port, and
> of course the character set is EBCDIC (but as you say, that's a minor
> problem).
I was wondering what that connector was. Now I know :)
> I think (based on the current loop on the PC Async card) that IBM's
> convention was that transmiters were active and non-isolated, receivers
> were passive and opto-isolated, but do check this before hooking
> anything up.
Cool, after the punch card project I actually know what you're talking
about ;)
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
*
--__--__--
Message: 24
Subject: SGI Discussions? was Re: Mac SE/30 accessories availability?
From: David Holland <dholland_at_woh.rr.com>
To: Classic Computer Talk <cctalk_at_classiccmp.org>
Date: 18 Jan 2003 13:07:13 -0500
Reply-To: cctech_at_classiccmp.org
Wot about SGI Crimson's? (Or in my case, a Power Series frame, w/
Crimson boards in it) Or are they too new (and LARGE :-) ) for the
list?
(Now for the possibly Off List questions of my post)
I'd like to get hold of a Reality Engine for it as mine (alas) only has
a VGXT boardset. Anyone know where I could find one?
I'd also be interested if anyone has interfaced a Sun Type 5 mouse to
it, as they look like they use the same protocol, just one is +5v logic,
the other is RS232? (Maxim's MAX232's sound vaguely useful, but they're
hard to find around here in 1sie 2sie counts)
(The optical mouse I have for it is in too bad a shape to be really
usable anymore - the felts shot, and it sticks to the metal plate/mouse
pad too much for my tastes.)
The whole thing that torque's me off the worst about it is.. its 3x's
bigger than my PC, and its 3x's quieter... :)
Anyways, If I'm off list focus, someone point it out to me, and I'll
hush, and wait for the Apple II stuff to respond too.. :-)
David
On Fri, 2003-01-17 at 23:19, Brian Chase wrote:
> On Fri, 17 Jan 2003, Zane H. Healy wrote:
>
> > It's not just on a system like that. Earlier this week I got my first
SGI
> > system, a nice little O2. It's about the crappiest of the O2's, but
it's
> > still a *very* nice UNIX workstation. I thought that it was doing OK
at
> > surfing until yesterday when I wanted to check something on gamespot,
it
> > absolutly crawled to a halt trying to render the pages (well the
browser
> > did, the rest of the system was nice and responsive). I swear it took
close
> > to 10 minutes to get to the third page (the one that had the data I was
> > curious about).
> >
> > I think I'll now run the browser on my Linux box and retarget it to the
> > SGI's desktop (at least until I get an Octane).
>
> I'll wait to get an Onyx. Actually, the Origin 2000s are quite lovely,
> too. They're still really off topic for this list.
>
> -brian.
>
--__--__--
Message: 25
From: M H Stein <mhstein_at_canada.com>
To: "'ClassicComputers'" <cctalk_at_classiccmp.org>
Subject: PET 2001 oddity
Date: Sat, 18 Jan 2003 13:19:36 -0500
Reply-To: cctech_at_classiccmp.org
Ethan: thanks for the info; I've never seen a
dynamic RAM 2001N, although a friend of mine
home-brewed a static > dynamic conversion.
4032s of course, but I take it you're talking
about a real small-B/W-screen 2001.
I sometimes toy with the idea of building
a PET using modern chips; shouldn't be too
big a deal (very low on my to-do list though).
Adrian: Was working on adding my .02 to the
discussion, but read on and saw that you're
in business. If you can't find any locally,
I've got several tubes of 2114s here in frosty
Canada. And they are used in pairs because
they're only 4 bits wide (x 1K).
One of my PETs, with an MTU graphics board,
is dead as well; this discussion just might
motivate me to have a look at it.
Good luck!
mike
--__--__--
Message: 26
From: M H Stein <mhstein_at_canada.com>
To: "'ClassicComputers'" <cctalk_at_classiccmp.org>
Subject: T&B Ansley IDC connectors
Date: Sat, 18 Jan 2003 13:25:29 -0500
Reply-To: cctech_at_classiccmp.org
---------------Original Message---------------
Subject: T&B Ansley IDC connectors
From: "Jeffrey H. Ingber" <jingber_at_ix.netcom.com>
Date: 17 Jan 2003 19:17:20 -0500
Does anyone know where I can aquire the T&B ansley "light blue" IDC
ribbon cable connectors that were used by MITS?
Googling reveals that Tyco purchased this line of connectors in 2001,
but I can't find any mention of T&B Ansley on their web site.
Thanks,
Jeff
-------------------------------------------------------
Used to use a lot of these & have a few left; Exactly which ones are
you looking for?
mike
--__--__--
Message: 27
From: M H Stein <mhstein_at_canada.com>
To: "'ClassicComputers'" <cctalk_at_classiccmp.org>
Subject: PerSci Model 277 Dual 8" Floppy Drives - Info Needed
Date: Sat, 18 Jan 2003 13:29:05 -0500
Reply-To: cctech_at_classiccmp.org
---------------------Original Message-------------------------
From: "Tim Myers" <tim.myers_at_sunplan.com>
To: <cctalk_at_classiccmp.org>
Subject: PerSci Model 277 Dual 8" Floppy Drives - Info Needed
Does anyone have any info on these drives? I have some in a CP/M system
(Ithaca Intersystems DPS-1), and they seem completely dead. They have an
electric load mechanism, but when I insert a disk, nothing happens.
Popped the case and can't see anything obviously out of place.
Tim.
-------------------------------------------------------------------------
Cromemco used these in early models of the System 3; not exactly the most
reliable. Sorry to say, I scrapped several of them a year ago and, although
I've
got manuals for most Cromemco stuff I don't think I've got any docs on
these.
But I'll have a look and let you know if I find anything. Meanwhile, there
are
probably several people on this list who have them and could perhaps at
least compare notes with ya. They are getting power?
Good luck,
mike
--__--__--
Message: 28
From: ard_at_p850ug1.demon.co.uk (Tony Duell)
Subject: Re: About Electronics Questions
To: cctalk_at_classiccmp.org
Date: Sat, 18 Jan 2003 19:32:58 +0000 (GMT)
Reply-To: cctech_at_classiccmp.org
> The biggest thing however for anybody doing repair
> is get all the doc's you can even before you start
> repairing something.A schematic is a very useful
Agreed (why do you think I have a few _thousand_ scheamtics/repair
manuals...). However, the schematic is not always available (maybe not
anywhere any more), so it can be useful to be able to make guesses and
'find your way aobut' without a schematic. Alas this comes with (a lot
of) practice...
> PS Caps are the first thing to go in any equiment
> unless you let the magic smoke out first.
Hmmm.. Not always. I've had a number of HP98x0 machines on the bench in
the last few months. I've had to change _one_ electrolytic capacitor and
about 20 TTL chipes (particularly 74Hxx parts). And we all know that 2114
RAM chips are often dead...
-tony
--__--__--
Message: 29
Date: Sat, 18 Jan 2003 19:13:48 -0800
To: cctalk_at_classiccmp.org
From: "Zane H. Healy" <healyzh_at_aracnet.com>
Subject: RE: Dear Santa, I would like a VAX....
Reply-To: cctech_at_classiccmp.org
>Didn't see one at a fiver. Saw
>http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&category=1484&item=23017
>94356
>which is claimed to be a UV3100-95. Assuming it is, then it's
>a darned fast VAX (in VAX terms) and really well worth having.
That's one nice VAX, I'm glad it's on the other side of the pond :^)
>The DLT looks more like a TZ30 to me (still nice to have) and
A good indication that it's a TZ30 is that it's a half-height drive. The
TZ30 is the only half-height drive that uses Compact-Tapes.
Zane
--
| Zane H. Healy | UNIX Systems Administrator |
| healyzh_at_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/ |
--__--__--
Message: 30
Date: Sat, 18 Jan 2003 19:26:42 -0800 (PST)
From: Sellam Ismail <foo_at_siconic.com>
To: <cctalk_at_classiccmp.org>
Subject: Re: Dear Santa, I would like a Yamaha CX5M ...
Reply-To: cctech_at_classiccmp.org
On Sat, 18 Jan 2003, Cameron Kaiser wrote:
> Anyone ever seen someone out there trying to get rid of a Yamaha CX5M?
It's
> about the only MSX machine I have significant curiosity about due to its
> specialised music abilities.
Yes, and I helped them get rid of it by taking it away for them ;)
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
*
--__--__--
Message: 31
Date: Sat, 18 Jan 2003 21:38:05 -0600 (CST)
From: Tothwolf <tothwolf_at_concentric.net>
To: Classic Computer <cctalk_at_classiccmp.org>
Subject: Re: Apple 1 schematics
Reply-To: cctech_at_classiccmp.org
On Sat, 18 Jan 2003, chris wrote:
> In reading my copy of Collectible Microcomputers (yes yes, you all get
> it by now, I like the book... ok, I'll stop refering to it after
> this)... I noticed in the Apple Computer section a mention of how
> Apple's first customers were the folks that got schematics for the Apple
> 1 when it was first shown at Home Brew.
>
> Although I already knew that they alledgedly gave out schematics... I
> began to wonder A: did they really (probably) and B: do any copies exist
> anywhere?
>
> I thought it might be a fun project to try an build an Apple 1 from the
> schematics... just as the first users probably did. So, does anyone know
> if they are available, or does anyone have a copy and might want to send
> me a set? Or are copies just as elusive as the Apple 1 itself and there
> is no shot in ever getting them.
Ok, I guess its time I post on the list about this...
I've been thinking about this very project for sometime. The main problems
that I came up with are:
1. certain parts are difficult to find
2. ROM source and/or binary image availability
3. re-creating the pc boards
The first problem should be possible to overcome either by finding a stock
of surplus parts, or should significant demand exist, having the parts
made by a company that specializes in fabricating out of production parts.
I've actually looked into the later a couple times in the past, and the
prices didn't seem to be out of line. I've even wondered if it would be
possible to get a copy of the mask from Intel for say the i8008 or i4004
and have reproductions made.
The second and third problems may be slightly more difficult to overcome.
One option would be to find an Apple 1, dump the ROMs, carefully unsolder
all the parts and scan each side of the cleaned pc boards. The scanned
images can then be used to create gerber files. I personally don't have
the funds to go out and buy an Apple 1, and I don't know of anyone who
would give up one just for it to be taken to bits.
Another option for the second and third problems is to contact Woz and see
if he would be willing to help. I have so far restrained myself from
emailing him, since I know he gets tons and tons of emails, including
people asking him if he has an Apple 1 he could give them, etc. I'd
imagine Woz would very much like to see the Apple 1 preserved, but it
would probably take him quite a bit of time to find all the docs and info
that we'd need.
-Toth
--__--__--
Message: 32
Date: Sat, 18 Jan 2003 22:41:14 -0500
From: David Gesswein <djg_at_drs-esg.com>
To: cctalk_at_classiccmp.org
Subject: Re: Wanted : Pinouts for 9311, 93L14, 8273 chips
Reply-To: cctech_at_classiccmp.org
Subject: Wanted : Pinouts for 9311, 93L14, 8273 chips
Fairchild 9311 (4 bit -> 16 line decoder?)
1 of 16 decoder
1 : 0
2 : 1
3 : 2
4 : 3
5 : 4
6 : 5
7 : 6
8 : 7
9 : 8
10 : 9
11 : 10
12 : Gnd
13 : 11
14 : 12
15 : 13
16 : 14
17 : 15
18 : E1
19 : E2
20 : A3
21 : A2
22 : A1
23 : A0
24 : Vcc
E1 and E2 both low to enable output. Outputs 0-15 are active low
Fairchild 93L14 (latch?)
Probably same as NSC
http://www.national.com/ds/93/93L14.pdf
Signetics 8273 (10 bit serial-in, parallel out shift register)
1 : Q6
2 : Q7
3 : Q8
4 : Q9
5 : Q10
6 : ClK1/
7 : CLK2
8 : Gnd
9 : Clr/
10 : Serial In
11 : Q1
12 : Q2
13 : Q3
14 : Q4
15 : Q5
16 : Vcc
Clk2 low and clk1 works
clk1 high and clk2 works
clk1 feeds an inverter then is ored with clk2 and result inverted to
clock the flip flops.
David Gesswein
http://www.pdp8.net/ -- Run an old computer with blinkenlights.
--__--__--
Message: 33
Date: Sat, 18 Jan 2003 21:53:42 -0600 (CST)
From: Tothwolf <tothwolf_at_concentric.net>
To: cctalk_at_classiccmp.org
Subject: Re: DOS 1.0
Reply-To: cctech_at_classiccmp.org
On Mon, 13 Jan 2003, Live Wire wrote:
> > I do also memember Wordstar and it's arcane command sequences. Those
> > commands persisted though, through a number of ordinary text editors
> > for programmers & such.
>
> http://sourceforge.net/projects/joe-editor/
>
> This is as close to wordstar and the WS CTRL-K-x command set I have
> found. I used to use wordstar on a tiny portable computer with a 4 line
> display to write asm for the amiga 500 and then dump it via the built in
> modem. Joe is my favorite editor today, though I find myself living in
> vi for the most part...
I use 'joe' constantly myself. It's my day to day editor for editing
source code. I have used vi and vim somewhat, but I've honestly not yet
taken the time to learn vi as well as I should. I'm sure I must be missing
out by not using vi (well, thats what other software developers tell me),
but joe is fast and does what I need it to.
Somewhere, I have a complete Wordstar set for the Apple II. IIRC, I pulled
it and some other complete Apple II software from a trash pile back in
1998 or so.
-Toth
--__--__--
Message: 34
Date: Sat, 18 Jan 03 11:13:01 PST
From: msokolov_at_ivan.Harhan.ORG (Michael Sokolov)
To: cctalk_at_classiccmp.org
Subject: RE: Hobbled NVAX
Reply-To: cctech_at_classiccmp.org
Antonio Carlini <arcarlini_at_iee.org> wrote:
> I doubt that non-hobbled firmware exists. I doubt you
> could just use the UV3100-96 firmware upgrade on a
> UV3100-85 and have it work. In fact, I guess the firmware
> is the same but it looks at the machine's hardware (e.g.
> size and config of backup cache or something like that)
> to determine what it is running on, and disables the VIC
> if it thinks the machine is a UV3100-85.
Umm, I don't think so. It looks like the firmware is the only difference
between M85 and the equivalent M9x model and the hardware is the same. In
this
case flashing M9x firmware would obviously give you the M9x model. But even
if
the M85 board was really different in B-cache or something from all M9x
models,
I doubt that the firmware could detect this by "looking at the hardware".
AFAIK
it's the firmware that has to tell the chips how the board is configured,
not
the other way around.
If indeed the hobbled and non-hobbled firmware are the same code, what it
looks
at to make the decision is most probably a flag in the second longword of
the
ROM.
> The easiest thing to do would be to try reenabling the VIC.
> If that is not enough, you would have to find the bit of code
> that disables the VIC and NOP it out.
Well, if it munges the microcode I would go for option 2 in any case.
BTW, do you know for sure that it really munges the microcode and not just
disables the VIC in the same way normal caches from CVAX onward can be
enabled
and disabled as you like?
MS
--__--__--
Message: 35
From: "Gareth Knight" <knight.beat_at_ntlworld.com>
To: <cctalk_at_classiccmp.org>
Subject: New classic
Date: Sat, 18 Jan 2003 19:20:36 -0000
Reply-To: cctech_at_classiccmp.org
http://c64upgra.de/c-one/s_pictures.htm
First pictures of the CommodoreOne pre-production board are now online:
""the pictures section has been extended by 11 pictures of the
pre-production board. Basic testing has already been done, all chips are
responding positively to diagnostic access. A 100% test procedure will be
developed this weekend."
--
Gareth Knight
Amiga Interactive Guide | Team *AMIGA* member
http://amiga.emugaming.com | http://www.amigau.com/aig/index.html
--__--__--
Message: 36
Date: Sat, 18 Jan 03 11:28:06 PST
From: msokolov_at_ivan.Harhan.ORG (Michael Sokolov)
To: cctalk_at_classiccmp.org
Subject: RE: VXT X terminal question
Reply-To: cctech_at_classiccmp.org
Fred N. van Kempen <Fred.van.Kempen_at_microwalt.nl> wrote:
> Ugh. Make that V4.20, obviously. Development is done on my V4.5 box..
>
> Shitty thing is, that I probably will also have to run a 4.2 system as
> a second-step system for bootstrapping, and I dont have a 4.2/vax tk50
> or cd set.
Why can't you compile and use the V4.20 kernel on your V4.50 system?
BTW, have you tried booting VXT on different VS3100s? I would really like
to
use a KA43 for my own VXT if possible, but I need to know if it is or not.
MS
--__--__--
Message: 37
Date: Sat, 18 Jan 2003 15:23:31 -0500 (EST)
From: vance_at_neurotica.com
To: cctalk_at_classiccmp.org, <geeks_at_sunhelp.org>
Subject: MCA Fast Ethernet Cards
Reply-To: cctech_at_classiccmp.org
Would the people who wanted the PS/2 100Mbps ethernet cards send me an
email? I have access to them now and can ship soon.
Peace... Sridhar
--__--__--
Message: 38
Date: Sat, 18 Jan 2003 12:32:12 -0800 (PDT)
From: Brian Chase <vaxzilla_at_jarai.org>
To: Classic Computer Talk <cctalk_at_classiccmp.org>
Subject: Re: SGI Discussions?
Reply-To: cctech_at_classiccmp.org
On 18 Jan 2003, David Holland wrote:
> Wot about SGI Crimson's? (Or in my case, a Power Series frame, w/
> Crimson boards in it) Or are they too new (and LARGE :-) ) for the
> list?
Pfft! You call that large!? There are plenty of folks on this list
who'd mock the relatively dainty size of the SGI Power Series frames.
There are people on the list with IBM mainframes, PDP-10s, big VAXen,
and a few Crays.
> (Now for the possibly Off List questions of my post)
>
> I'd like to get hold of a Reality Engine for it as mine (alas) only has
> a VGXT boardset. Anyone know where I could find one?
>
> I'd also be interested if anyone has interfaced a Sun Type 5 mouse to
> it, as they look like they use the same protocol, just one is +5v logic,
> the other is RS232? (Maxim's MAX232's sound vaguely useful, but they're
> hard to find around here in 1sie 2sie counts)
>
> (The optical mouse I have for it is in too bad a shape to be really
> usable anymore - the felts shot, and it sticks to the metal plate/mouse
> pad too much for my tastes.)
I'll see if we have any spare older mice. I know at least with the Indy
and Indigo2s onward they all used regular PS/2 mice. I'm not sure about
the Onyx systems, or the gear predating the mid-1990s time frame. My
introduction to SGI equipment came around 1994 or so.
About a year ago my employer returned several pallets worth of Indigo2s
and Indys (~80-100 systems) to SGI for trade ins on Octane2s. It took
about 6 months for SGI to even bother to come and pick them up. I've a
feeling they all ended up being dumpstered once they got back to SGI.
Saving them was out of the question as a list of serial numbers had been
given to SGI; because they were trade ins, they actually had to be
traded in. It's too bad.
On another note, perhaps more related to the list, the new building that
the Computer History Museum is moving into is actually the old SGI
headquarters on Shoreline Dr. in Mountain View. It's a lovely building;
I can't wait until they get things prettied up and moved into the new
location.
-brian.
--__--__--
Message: 39
From: "Antonio Carlini" <arcarlini_at_iee.org>
To: <cctalk_at_classiccmp.org>
Subject: RE: VXT X terminal question
Date: Sat, 18 Jan 2003 20:51:41 -0000
Organization: me_at_home
Reply-To: cctech_at_classiccmp.org
> Well, the enclosure is the same. It is only a set of additional
> connectors on the back an internal cabling. At least I interpreted
> pictures of a VAX4k105 this way. But all I need is the pinout.
> Building some cables is no problem and I have a QBus backplane
> from a dead and rotten BA23.
I have a UV3100-90 and I've been close to a VAX 4000-100 (it
just wasn't mine). The VAX 4000-100 enclosure has a distinctive
sloping part at the back which houses the Qbus (and DSSI?)
connectors. I didn't get to look closely enough to see whether
this housing is an add-on to the UV3100-90 enclosure or the whole
case is a manufacturing modification of that enclosure. Either way,
the standard shipping UV3100-90 enclosure does not have anywhere
for Qbus and DSSI connectors.
I'll look for pinouts if I can dig up the right docs.
Antonio
--
---------------
Antonio Carlini arcarlini_at_iee.org
--__--__--
Message: 40
Date: Sat, 18 Jan 2003 16:04:54 -0500 (EST)
From: "r. 'bear' stricklin" <red_at_bears.org>
To: cctalk_at_classiccmp.org
Subject: RE: Musings on BabyVAX video
Reply-To: cctech_at_classiccmp.org
On Sat, 18 Jan 2003, Doc Shipley wrote:
> I'll look when I get home (next month), but I'm pretty sure one of my
> VS3100 m38 machines was labelled SPX from the factory.
I just hauled home an m38 that had... an SPX installed. Right after I
bought an SPX card for my m76, to replace the GPX in it. The two SPX cards
are identical in every way (except possibly dustiness).
ok
r.
--__--__--
Message: 41
Date: Sat, 18 Jan 2003 16:08:55 -0500 (EST)
From: "r. 'bear' stricklin" <red_at_bears.org>
To: Classic Computer Talk <cctalk_at_classiccmp.org>
Subject: Re: SGI Discussions? was Re: Mac SE/30 accessories availability?
Reply-To: cctech_at_classiccmp.org
On Sat, 18 Jan 2003, David Holland wrote:
> (The optical mouse I have for it is in too bad a shape to be really
> usable anymore - the felts shot, and it sticks to the metal plate/mouse
> pad too much for my tastes.)
Uh..
Or you could go spend $1 on some felt and glue at the craft store, and fix
it.
ok
r.
--__--__--
Message: 42
Subject: RE: VXT X terminal question
Date: Sat, 18 Jan 2003 22:14:35 +0100
From: "Fred N. van Kempen" <Fred.van.Kempen_at_microwalt.nl>
To: <cctalk_at_classiccmp.org>
Reply-To: cctech_at_classiccmp.org
All,
Although I have both the M38 and M76 set up, I cant get the video
part to work - tube (that is on a VXT2000 right now) doesn't seem
to sync on either model. The M38 is standard, the M76 is the SPX
model. Anyone have a clue?
--fred
--__--__--
Message: 43
Subject: Apple 1 schematics
Date: Sat, 18 Jan 2003 16:22:30 -0500
From: chris <cb_at_mythtech.net>
To: "Classic Computer" <cctalk_at_classiccmp.org>
Reply-To: cctech_at_classiccmp.org
In reading my copy of Collectible Microcomputers (yes yes, you all get it
by now, I like the book... ok, I'll stop refering to it after this)... I
noticed in the Apple Computer section a mention of how Apple's first
customers were the folks that got schematics for the Apple 1 when it was
first shown at Home Brew.
Although I already knew that they alledgedly gave out schematics... I
began to wonder A: did they really (probably) and B: do any copies exist
anywhere?
I thought it might be a fun project to try an build an Apple 1 from the
schematics... just as the first users probably did. So, does anyone know
if they are available, or does anyone have a copy and might want to send
me a set? Or are copies just as elusive as the Apple 1 itself and there
is no shot in ever getting them.
-chris
<http://www.mythtech.net>
--__--__--
Message: 44
Subject: RE: VXT X terminal question
Date: Sat, 18 Jan 2003 22:23:32 +0100
From: "Fred N. van Kempen" <Fred.van.Kempen_at_microwalt.nl>
To: <cctalk_at_classiccmp.org>
Reply-To: cctech_at_classiccmp.org
Jochen writes:
> Someone on the PUPS / TUHS list has ported 4.3BSD-Tahoe and / or
> 4.3BSD-Reno to the VAX4000-7xx. AFAIK he had some porblems with
> interrupts at autoconfig time, but got it running.
Heh. This is not too hard, but *only* if he used the machine with
a KFQSA (DSSI-to-MSCP) controller, rather than the onboard SHAC.
It'd be a start, though. Michael, was this you?
--fred
--__--__--
Message: 45
Date: Sat, 18 Jan 03 13:44:31 PST
From: msokolov_at_ivan.Harhan.ORG (Michael Sokolov)
To: cctalk_at_classiccmp.org
Subject: RE: VXT X terminal question
Reply-To: cctech_at_classiccmp.org
Fred N. van Kempen <Fred.van.Kempen_at_microwalt.nl> wrote:
> > Someone on the PUPS / TUHS list has ported 4.3BSD-Tahoe and / or
> > 4.3BSD-Reno to the VAX4000-7xx. AFAIK he had some porblems with
> > interrupts at autoconfig time, but got it running.
> Heh. This is not too hard, but *only* if he used the machine with
> a KFQSA (DSSI-to-MSCP) controller, rather than the onboard SHAC.
>
> It'd be a start, though. Michael, was this you?
Not me. My 4.3BSD suffix is Quasijarus, not Tahoe or Reno. But my opinion
on
SHAC is radically different from yours. SHAC is a darling beauty. It is a
problem only for cheap OSes like NutBSD and Linsux. Since SHAC is a true CI
host adapter with the true Generic VAX Port (GVP) it is perfectly supported
by
the SCA CI port driver present in every proper VAX OS with SCA such as
Ultrix.
Although DEC killed VAX Ultrix before MicroVAXen with SHAC came about,
source
examination shows that the Ultrix V4.20 CI port driver supports SHAC (on
XMI).
Some day I will lift the SCA code wholesale from Ultrix and plop it into
4.3BSD-Quasijarus.
MS
--__--__--
Message: 46
Date: Sat, 18 Jan 2003 14:13:56 -0800 (PST)
Subject: Re: Apple 1 schematics
From: "Eric Smith" <eric_at_brouhaha.com>
To: <cctalk_at_classiccmp.org>
Reply-To: cctech_at_classiccmp.org
chris asks about Apple I schematics.
> Although I already knew that they alledgedly gave out schematics... I
> began to wonder A: did they really (probably) and B: do any copies exist
> anywhere?
A: Yes.
B: Google is your friend.
> I thought it might be a fun project to try an build an Apple 1 from the
> schematics...
It's *extremely* difficult to find some of the Apple I parts, which have
been out of production for over years. Particularly the seven 1024-bit
MOS shift registers, and one hex-40-bit MOS shift register.
> just as the first users probably did.
Not quite, since they had a PCB. (Unless you plan to lay out a PCB
yourself.)
--__--__--
Message: 47
Date: Sat, 18 Jan 2003 22:16:19 +0000
From: John Honniball <coredump_at_gifford.co.uk>
Organization: Stoke Gifford Computer Museum
To: cctalk_at_classiccmp.org
Subject: Re: Got the second batch of -11 equipment
Reply-To: cctech_at_classiccmp.org
Bill Bradford wrote:
> Anybody want two RL02s (by the way, how the hell do I get the top covers
> open? The "switch" on the top wont budge), and two RL01s?
If the RL02s are like the RL01, there's a little metal panel on the
side, near the "switch". Unscrew that, and you should see the solenoid
interlock mechanism. Fiddle with that, and the "switch" should open
the top cover.
You'll need to lock the heads down if you're going to ship the drives.
There's a little metal flap below the head carriage, visible with the
top cover open and no pack in the drive. A single screw holds it in the
"open" position. Loosen the screw, turn the flap 90 degrees, then
tighten the screw. The flap is now in front of the head carriage,
preventing it from moving.
> Pickup in Austin, Texas..
I know someone here in Bristol who'd take the RL02s, if they weren't
so far away.
--
John Honniball
coredump_at_gifford.co.uk
--__--__--
Message: 48
Date: Sat, 18 Jan 2003 22:19:34 +0000
From: John Honniball <coredump_at_gifford.co.uk>
Organization: Stoke Gifford Computer Museum
To: cctalk_at_classiccmp.org
Subject: Re: Apple 1 schematics
Reply-To: cctech_at_classiccmp.org
chris wrote:
> Although I already knew that they alledgedly gave out schematics... I
> began to wonder A: did they really (probably) and B: do any copies exist
> anywhere?
Parts of the Apple I schematics are shown in the second edition of
"Fire In The Valley". Not enought to build a complete replica,
though. You can see, however, that there's an option for installing
either a 6502 CPU or a 6800.
--
John Honniball
coredump_at_gifford.co.uk
End of cctech Digest
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