December 2001 - test-drb@ccmp.vtda.org

by mhstein＠usa.net

Sorry 'bout that ;( Yeah, I've wished for a time machine myself a few times recently; been kicking myself as well over some of the stuff I've tossed. mike ---------------Original Message------------ Date: Sat, 22 Dec 2001 02:20:39 -0700 From: Ben Franchuk <bfranchuk(a)jetnet.ab.ca> Subject: Re: CoCo & MOS books M H Stein wrote: > > Three more books available: > > RS TRS-80 Color Computer Technical Reference Manual 26-3193, 69 pages > > RS TRS-80 MC-10 Micro Color Computer Service Manual 26-3011, 47 pages > (Photocopy purchased from RS) > > MOS Technology MCS6500 Microcomputer Family Programming Manual, Jan '76, > 8 1/2x11, approx. 200 pages. Will throw in Synertek 6500 & 6500B data > sheets full of timing and cycle time info so you can join the > fascinating (!) discussion presently raging among Dick, Allison & Ben. Sure now you tell me 10 years I last had a COCO. You would not believeb the old computers I have thrown out do to 1) lack of software. 2) lack of docs when they break. Mind you most of the computers have been $10 specials but they would have been nice to keep. Also a lot of data-books and old byte and kilabaud magazines that I would have liked to keep got too wet in storage. The 6809 is the cleanest cpu for opcodes and for timing too. And to add to the chaos the FPGA cpu's I am building have even another variation in memory access - a 6809 style access with good setup and hold characteristics. - -- Ben Franchuk --- Pre-historic Cpu's -- www.jetnet.ab.ca/users/bfranchuk/index.html

23 years, 7 months

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HP 1000/E

by steven_j_robertson＠hotmail.com

Took deliveery of my "New" HP 1000/E last week and yes Virgina, there really is a Santa Clause. For those who would bash eBay, here's proof that there are good deals to be had. http://cgi.ebay.com/aw-cgi/eBayISAPI.dll?ViewItem&item=1294677875 Obviously there are no disks or OS but otherwise, the computer seems to be complete. Considering it's age, it's in remarkably good condition. All the cards aand covers are in place, very clean inside. Cool! I powered the thing up and it seems to work. I have absolutely no experience with these machines so, I really can't say for sure. When powered up, some of the lights do come on and I can select different registers and toggle data in and out. So... What's next? I'd really like to see it do "something" even if it's only blinking a coule of the lights. If someone could provide a SIMPLE routine to make it do that, I'd be grateful. Once again, I don't have any exposure with this thing so, I'll need pretty explicit instructions. I'm not familiar with all the cards but, from what I can tell, there is no ASYNC card in the box. I think it was originally used with a HPIB terminal. I do have some HP terminals but, none of them have HPIB interfaces. If anyone has a ASYNC card the'd be willing to part with, please let me know. I'm not sure what the licensing issues are but, would really like to find a OS for the system. I've got plenty of HPIB disks, tapes drives, etc... so copying the OS shouldn't be an issue. If anyone can provide a reasonable solution to getting the OS, once again, I'd appreciate it. Thanks for the help and Happy holidays to all, SteveRob _________________________________________________________________ Send and receive Hotmail on your mobile device: http://mobile.msn.com

23 years, 7 months

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M8650 async board problem

by pete＠dunnington.u-net.com

On Dec 23, 1:22, Pete Turnbull wrote: > On Dec 22, 23:15, Tony Duell wrote: > > > As the fault wasn't on the M8650, why did they cut that track? Did they > > just never want interrupts? > > I've no idea. It wasn't cut by the previous owner; he doesn't know why > either. I've just realised something. The machine was used in a real-time process control system in the pharmaceutical industry. If that system was designed as a "hard" real-time system, then interrupts would be verboten, as then it would be impossible to calculate the worst-case execution times for scheduling routines. I guess this was built not very long after the Flixborough disaster in 1974 -- an event still used as an example in safety-critical systems design courses. My guess is the designers just eliminated all the unlikely problems they could, as well as the likely ones. -- Pete Peter Turnbull Network Manager University of York

23 years, 7 months

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D*A*T*A* I*/*O* M*a*n*u*a*l*s

by mranalog＠attbi.com

CLeyson(a)aol.com wrote: > Try http://www.spies.com/arcade/TE/index.html for the 29A programmer. > Lots of other goodies there too :-) Well DAMN. I thought I was supplying files not on the web yet. Thanks for the link. --Doug ========================================= Doug Coward @ home in Poulsbo, WA Analog Computer Online Museum and History Center http://www.best.com/~dcoward/analog =========================================

23 years, 7 months

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ROM preservation (Dataman S4)

by CLeyson＠aol.com

Apologies - my calling the S4 an overpriced toy was out of order. It is a very compact programmer and will program just about anything. I just never liked them - I could never manage to press the right buttons to get it to do what I wanted - and then the battery went flat :-( Just me being dumb. Chris

23 years, 7 months

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DEC Support & Service CDs (was PDP 11/34 Console & cards)

by fcharp＠rogers.com

Okay, so I dug a tad deeper into the DEC service CD-ROMs and found a lot there. In terms of manuals, the 2 CDs include no less than... 852 (!) PDF-encoded manuals -- yes, that's 525 on one CD and the balance on the other. Remember the VAX technical library room? Ours was covered with orange manuals wall-to-wall, floor-to-ceiling.. Well I have the feeling that these 2 disks contain all of those and then some. The manuals cover everything from operator's manuals to CPU programmers reference, diagrams, bulletins. DECserver, Alpha desktops, storage units. And that's just for manuals. The disks also contain software libraries that include bios, drivers, etc... The index files alone take a fair bit of room. I thought for a minute that I could post them here, but I gave up as soon as I saw the size of them. So.... If you are interested in the index files, email me. I will have a run of disks made. NOT FOR SALE, only giveaways. I'll seed 5 or 10 of those who want it, and they can take it from there and pay forward by obliging other people. Cheers and all that sort of things, Frederic Charpentier P.S.: now, if only this kind of documentation archive existed for S-100 systems... Almost makes you want to take up VAX systems. Then again, I'd probably need to somewhat upgrade my home electrical switchbox. Or I could move next to a nuclear power plant...

23 years, 7 months

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ROM preservation (Data I/O system 19)

by CLeyson＠aol.com

Dave McGuire writes: > If you're serious about programmable devices, Data I/O is the only > real choice in my opinion. The company's policies leaves a bit to be > desired...their software updates are prohibitively expensive, and it's > nearly impossible to use their earlier programmers without docs > because you need to translate chip part numbers to "device numbers" to > enter into the programmer...but other than that the boxes are great. I agree with Dave, Data I/O were, and probably still are, THE recommended manufacturer for programmers. The system 19 with the Unipack fitted will program 16, 18, 20, 24 and 28 pin DIL packages. It will also handle 2704's and 2708's with odd programming voltages. If anyone ever needs any help with this programmer I've got the manuals including schematics. Chris Leyson

23 years, 7 months

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F/S: Atari Model CX-2600 and More

by CLeyson＠aol.com

Sellam Ismail wrote > The only thing it has going for it is the original box. Hmm... I sort of agree. It's a classic games machine just like the C64 or Sinclair Spectrum. OK it ain't a number crucher but it's still a classic and introduced a lot of people to computing (hopefully). Chris Leyson

23 years, 7 months

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[geeks] IBM RS/6000 7012-3XX

by wilby98＠yahoo.com

I will be heading to a computer market tomorrow in Amsterdam and am on the lookout for an IBM RS/6000 7012-3XX type box. I found quite a bit of technical information at the IBM web site but was interested in a few other details. Assuming I find one: 1. How important is it that it have a key? 2. How important is it that it have media or able to boot up? (Can I download and install the appropriate version somewhere?) 3. What is an approximate cash value? 4. Are components easy to come by or should I really take a look to make sure everything is there? Thank you, Bill Amsterdam, NL _______________________________________________ GEEKS: http://www.sunhelp.org/mailman/listinfo/geeks

23 years, 7 months

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how to clean a PDP8/A, dishwasher?

by gunther＠aurora.regenstrief.org

Hi, I have that itching to start up my new PDP8/A even without disks attached. Have a programmers console, so that's enough to enter a few programs. It's intriguing to see a machine with a simple input method and convenient IO programming abstractions, it is possible to bootstrap this system entirely >from scratch with only a manual. But first I need to give this thing a good cleaning. A friend has assured me that there's nothing better than the dishwasher, with the exception of big capacitors and, what about magnetic core memory? So, how should I clean the RAM cards? How the DC power supply units? If I put the other stuff in the dishwasher, I know there should be no detergent and no heat dry. But what about the rinsing aid, do I have to pump this out of the reservoir? I heard of another method using hand-washing first, then drying and finally a bath in Isopropanol. Is that what I should do with the core memory cards? Finally, finally, I noticed that the cards are all slightly bent from being kept in a horizontal position. They are sagging a little, like a hammock. Would that be a cause of concern in the long run? Should I mount the chassis in an upright position in the future? any other things I should know? -Gunther PS: I am probably going to make one "portable" PDP-8, where the console is mounted on the chassis and the rest of the opening covered plus a handle on the top. That would be neat for bringing into the classroom to teach fundamentals of computer programming, wouldn't it? -- Gunther Schadow, M.D., Ph.D. gschadow(a)regenstrief.org Medical Information Scientist Regenstrief Institute for Health Care Adjunct Assistant Professor Indiana University School of Medicine tel:1(317)630-7960 http://aurora.regenstrief.org

23 years, 7 months

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6502/Z80 speed comparison (was MITS 2SIO serial chip?)

by pete＠dunnington.u-net.com

On Dec 22, 1:16, Ben Franchuk wrote: > CLeyson(a)aol.com wrote: > <snip> > > Here is the code from Numerical Recipies for an insertion sort (Fortran and C) > <snip> > Do they have the "Small C Compiler" for the 6502? I know you can get a > Z80 or 8080 > compiler under CP/M. Note the version #1 does not have for or && > instructions. It wouldn't really be fair to use a compiler for the code to compare processors. You'd end up testing the relative merits of two compilers as much as testing the processors. -- Pete Peter Turnbull Network Manager University of York

23 years, 7 months

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ROM preservation

by pete＠dunnington.u-net.com

On Dec 22, 18:06, CLeyson(a)aol.com wrote: > Neil Cherry writes: > > > I really like the Dataman S4, my friends use it pretty heavily in a > > very unfriendly environment. > > When the battery goes flat so does the processor so to speak and you can't > turn on the battery charge electronics ! You have to take the case apart and > "hot wire" the battery. I've always thought of the Dataman as an overpriced > toy. I've used S4's quite a lot, and I seem to recall there's a way to deal with that without opening it up. I've certainly recharged them from totally flat/won't turn on. As for price, they're about the same as other comparble devices, at least in the UK. And they can do PALs GALs serial PROMs and other mildly exotic things. -- Pete Peter Turnbull Network Manager University of York

23 years, 7 months

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Multitech/Acer Micro-Professor info WTD

by philpem＠bigfoot.com

Hi, I've managed to acquire a few Multitech Micro-Professor printers and I'd like to know just how the heck to use them. I've managed to partially decipher the schematic, but I can't get the *ing ROM to dump. I've got it hooked up to a 74HC4040 12-bit binary counter and a Microchip PIC16F874 microcontroller. The hex data the PIC snaffled from the ROM contains some instructions, but most of it is filled with zeroes. Anyone got a ROM dump >from the "PRT-MPF" or "PRT-MPF-IP" boards? All my boards appear to be later-version ones, with Fujitsu 2732 EPROMs onboard. Also, has anyone got scanned copies of the MPF-IP (Micro-Professor mainboard) user's guide, monitor ROM dump, memory map, schematics, etc? I'd love to try my hand at writing an MPF emulator, but I don't have an MPF in my collection. I'd also like to get hold of one of each of the following: Synertek SYM-1 Rockwell AIM-65 (with printer) MOS KIM-1 Ideally, I'd also like the manuals, but if they're AWOL it doesn't matter too much - I'll just snaffle them from Rich Cini's webpage and print them off :-) BTW, the MPF printers seem to be quite plentiful - Greenweld UK appear to have plenty in stock. I've also got the Technical Reference for the Seiko Instruments MTP201-20B printer module that Multitech used on the MPF printer - just in case anyone's interested :-). There's only one minor thing about them - do NOT, under ANY circumstances, activate the head for longer than 1.5mS - it WILL burn out. Just out of interest, what sort of printer mech does the AIM-65 use? I'm not condoning the destruction of a perfectly good AIM-65 just to find this out, but I would like to know (in case anyone has a parts list for the AIM). Thanks again. -- Phil. philpem(a)bigfoot.com http://www.philpem.btinternet.co.uk/

23 years, 7 months

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M8650 async board problem

by pete＠dunnington.u-net.com

I've fixed it. On Dec 20, 19:36, Tony Duell wrote: > Pete wrote: > > Now I'm really puzzled. After spending the evening playing with my > > serial board, and armed with the pinouts this time, I still have an > > interrupt problem. > Be warned DEC can be confusing here. For example on the schematics, pin 8 > of the FF is shown as Q and pin 9 as Q/. But that's because the D input > on pin 12 has an inverting 'bubble'. And of course the Set and Reset pins > are therefore the other way round to what you'd expect. The confusion comes mostly from the Maintenance Manual. Thanks to David Gesswien for scanning the KL8-E printset, and Tony's description of the pinout labelling, I worked out what should be happening. > That's the problem, I think. DEC's data bus is active low. Or that's how > it appears to me. Indeed, and that's what I expected. The Handbook doesn't show the data bus signals as active low, whereas it does secifically show 'L' after other active-low signals. Nevertheless, like most other open-collector type busses, the Omnibus is active low. > > Should I just swap the connections to the SET and CLR, and Q and not-Q on > > the 7474? Or am I missing something? > > No (!). It worked once as it is now, so it can work again. Find out if > you can ever make the Q/ output of that FF low, and if not, why not. Are > you getting a pulse on the clock pin when you execute a KIE instruction? > What is the D pin doing? They all seemed to be doing something, just not necessarily the *right* something, when I first mailed the list. I wasn't sure it actually *had* worked properly; I wondered if there could be an ECO missing. Certainly it hadn't worked for a long time, and presumably that was why someone had cut the INT RQST L track a long time ago. However the fault, for those who're still reading, wasn't really the M8650 itself. There were two problems. At some point, I had unplugged the serial cable from the Berg connector, so there was noise on the serial input, which upset the diagnostics. The second problem was that the PSU +5V was down to about 4.5V, which isn't great for TTL. I'd checked the voltage when I reassembled the machine, but it didn't have a full complement of boards in it at that time, and the additional load made it droop due to several not-too-tight connections between PSU, power cables, and backplane. I've since cleaned them up extra carefully, and tightened the connections, and readjusted the PSU to give 4.9V on the front backplane and just over 5V on the rear one (the difference is due to different loads on the two parts). Now KIE with AC11=0 turns interrupts off, as does CAF and the CLEAR switch, and KIE with AC11=1 turns them on, and it passes all the diagnostics. Oh, and FOCAL 69 runs fine :-) Now onward to OS/8 and some RX01s... Thanks to everyone whose suggestions or websites helped me get this far: David, Kevin, Tony, Allison, Ethan, Doug, Zane, the other Kevin, and Nabil. And probably others I've forgotten. -- Pete Peter Turnbull Network Manager University of York

23 years, 7 months

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ROM preservation

by CLeyson＠aol.com

Neil Cherry writes: > I really like the Dataman S4, my friends use it pretty heavily in a > very unfriendly environment. When the battery goes flat so does the processor so to speak and you can't turn on the battery charge electronics ! You have to take the case apart and "hot wire" the battery. I've always thought of the Dataman as an overpriced toy. Chris Leyson

23 years, 7 months

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ROM preservation

by mcguire＠neurotica.com

On December 21, Christopher Smith wrote: > I've been thinking recently that I should possibly get a ROM reader/writer > so that I can preserve the ROMs out of all my old parts, and I was wondering > whether anyone had some experiences (good or bad) with any different > programmers? > > Which programmers are good, which aren't so good, and why? If you're serious about programmable devices, Data I/O is the only real choice in my opinion. The company's policies leaves a bit to be desired...their software updates are prohibitively expensive, and it's nearly impossible to use their earlier programmers without docs because you need to translate chip part numbers to "device numbers" to enter into the programmer...but other than that the boxes are great. I have a Data I/O 2900 that I adore. I highly recommend that model, or its big brother, the 3900. > Where is the best place to get one, and which is the best to get on a tight > budget? eBay. Sure, everyone here poo-poos eBay, but face it...it's where you can get anything you want, any time you want. > What about making your own? (Note that I think this may be an interesting > project, but I'd really rather put my time into other things right now, so > this is near the bottom on my list of options...) It's fun, and certainly practical...See early literature by Steve Ciarcia for examples of some simple ones. > One called "Leaper 3" interests me because of its ability to copy one ROM to > another without any kind of computer hookup, which I imagine might be > useful, but I know nothing else about it. Ahh, a "real" device programmer. :-) I despise those dumb things that can't do anything unless connected to a PeeCee running Windows...totally useless to those of us who use real computers and don't allow Windows boxes in our homes. -Dave -- Dave McGuire St. Petersburg, FL "Less talk. More synthohol." --Lt. Worf

23 years, 7 months

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Sellam in the news...

by Antonio.Carlini＠riverstonenet.com

>Hey, cool! Any chance of getting a copy >sent to me for my vanity file? http://www.newscientist.com/opinion/opbooks.jsp?id=ns232110 Antonio

23 years, 7 months

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Fwd: F/S: Atari Model CX-2600 and More

by doc＠mdrconsult.com

I don't know what it's worth, but I'm posting it in case it's a decent deal. Doc From: "Bill" <WVIVERETTE(a)houston.SPAMrr.com> Newsgroups: houston.forsale,houston.wanted,austin.forsale, tx.forsale,misc.forsale.computer,misc.forsale-computers Subject: F/S: Atari Model CX-2600 and More Date: Fri, 21 Dec 2001 21:51:11 GMT Vintage 1978 Video Computer System by Atari Model CX-2600 Serial Number 8150545 Woodgrain 6-switch model Good Working Condition Includes: Original Box 8 games (4 with manuals) 4 Joysticks (2 work fine, 2 work some) 3 Paddle Wheel Sets (6 paddles - 3 work, 3 don't) AC Power Adapter TV RF Connector 1981 Atari Game Catalog Looks from e-Bay that it should bring $50-$70 Also, another entire 4-switch System if you want TWO! E-mail if interested. Pictures available. Available in Houston, TX Will ship if buyer pays shipping and insurance

23 years, 7 months

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Unidentified 80-pin 32M modules

by doc＠mdrconsult.com

Hi. The shop I buy a lot of custom stuff from gave me (not free, on spec) some 80-pin RAM modules. Mel thought they would run in the VS4000/60, and the form-factor is identical. They seat perfectly in the memory slots, and the locator-pin holes are right. Except the Vax won't boot at all with that memory installed. I've looked around on the web, and can't identify them. There are 2 paper labels: a QC label with 2 lines, the first line varies, the second line is the same on all: UNI00-20533-064 and a small label with what looks like a DEC/Compaq part number: 33522947-001 Does anybody know what those are? and/or need them? Doc

23 years, 7 months

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6502/Z80 speed comparison (was MITS 2SIO serial chip?)

by ajp166＠bellatlantic.net

When you get over it... Talking about 20mhz 65C02s and other "fast" parts that didn't exist when even the z180 (orginally 64180) was introduced is equally bogus. A Pentuim anything running a Z80 emulator is still emulation and not native silicon. Now cut the crap. Allison -----Original Message----- From: Richard Erlacher <edick(a)idcomm.com> To: classiccmp(a)classiccmp.org <classiccmp(a)classiccmp.org> Date: Friday, December 21, 2001 7:06 PM Subject: Re: 6502/Z80 speed comparison (was MITS 2SIO serial chip?) >We went through all this a couple of years back under the same heading. If the >Z235980 at 234 THz is code compatible then, if I understand you correctly, it IS >a Z80, right? Even though the Z180 won't fit in a Z80 socket, you'd sell it as >a Z80 anyway, right? Even though it didn't even exist back when it mattered, >you still insist it's a Z80, right? > >My Pentium executes the Z80 code just fine at about 75x the speed of of a Z80. >Does that mean it's a Z-80? > >We're comparing CHIPS, not philosophical constructs. If it IS a Z80, or Mostek >3480, or something else EXACTLY a Z80, i.e. built under the license, >pin-compatible, code-compatible, etc. then MAYBE it's germane to this >discussion. No chip that isn't a pin-compatible substitute commonly referred to >as a Z80 back in the days when the Z80 mattered is germane to this topic. If it >won't plug into the socket of a Z80, FORGET IT, because it's not a Z80. If >that's too difficult for you, then please ask an adult why a 47-ohm resistor >isn't the same thing as a 75-ohm resistor. > >I'm sure glad you're not trying to sell parts any more, Allison. I'd hate to >have to argue with you that the choke you're trying to pitch isn't a diode. > >Dick > >----- Original Message ----- >From: "ajp166" <ajp166(a)bellatlantic.net> >To: <classiccmp(a)classiccmp.org> >Sent: Friday, December 21, 2001 4:24 PM >Subject: Re: 6502/Z80 speed comparison (was MITS 2SIO serial chip?) > > >> From: Richard Erlacher <edick(a)idcomm.com> >> >> >> >There are lots of things that you could compare, but the first things >> you've got >> >to leave out are the ones that aren't a Z80, which immediately deletes >> the Z180, >> >and Z280. The Z80 is not around any more than the 6502 is around. >> There are >> >> >> Why? they are still z80 core and code compatable. While they add things >> like >> serial IO, timers and MMU they are Z80, maybe more so than 65C02. >> >> Allison >> >> >> > >

23 years, 7 months

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6502/Z80 speed comparison (was MITS 2SIO serial chip?)

by CLeyson＠aol.com

In a message dated 12/22/01 Richard Erlacher writes: > If you want to insist that you can devise a task, any task at all, mind you, > that you can code in Z80 code to run at 2x the clock rate of a 6502, in, say, > <80 lines of assembler, that's strictly a computing task, just to leave I/O out > of it, or any I/O task that you think you can code in legitimate Z80 > instructions, providing a precise spec for the I/O task, then I'd certainly come > out and say you can't cook a legitimate one up that a 6502 can't accomplish in > less time, in the case of the computing task, and that, since the I/O task spec > limits the rate, the 6502 will be able to do it as well. I'd like to see a task > that meets those spec's How about a straight insertion bubble sort ? A completely useless task but it does take a defined number of data moves and compare operations. The array to be sorted could be say, 16-bit signed integer, 1k words long and in reverse order. (That should take a while for a 6502 to sort out). Chris

23 years, 7 months

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What did you ask "Santa" for this year.... : )

by djenner＠earthlink.net

Doesn't the DQ614 emulate the RL01/RL02? Can't you just use the RL device hander? Dave SP wrote: > > One Dilog DQ614 driver disk for RT-11. I have > one of these boards inoperative because I can't > configure it. > > Happy Christmas (if applicable) > > Greetings > > Sergio -- David C. Jenner djenner(a)earthlink.net

23 years, 7 months

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Pyramid 90x

by pechter＠ureach.com

Here's what I know about the 90x... I haven't worked with Pyramid gear in about 9 years so I may be dropping a few bits. The machine loads COS the diagnostic software from an 80 track 96 tpi 5 1/4 disk. This contains the support software to download the necessary code into the machine to make it boot. The operating system is OS/x (a BSD 4.2 or 4.3 and SysV rel 2 or 3 hybrid). I'd love to get a machine running that around so I could figure out how they do the dual universe stuff so I could do it with FreeBSD. I used to teach OS/x Operations, Sys Admin, Comm and such for Pyramid and I also taught maintenance on their MIS series boxes. I had a 98x (IIRC) in the office which was similar to the 90x. Bill -- Bill Pechter Systems Administrator uReach Technologies 732-335-5432 (Work) 877-661-2126 (Fax) ---- On Sat, 22 Dec 2001, Dan Cohoe (dancohoe(a)oxford.net) wrote: > I recently brought home a Pyramid 90x. The old owner who had run the > machine at his work in the 80's bought it from his employer about 1990, > but never got it set up at home. > > Apparently he decided to dump it a few months ago, but because of its > size didn't get the job done. However, he did put all of the software > and the documentation on the curb for the garbagemen at that time. > > Mike Kenzie and I got there just before he called the recyclers for the > machine itself. > > What I need is a boot disk or other software and any documentation that > might be out there. According to the old owner, it starts by loading > the > boot program off the 8" floppy before it can find the fixed disks. > > Does anyone have anything for this machine? > > thanks, Dan Cohoe > > >

23 years, 7 months

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siemens nixdorf laser printer driver for pageprinter model md12

by ROCKYROADENNIS＠aol.com

driver wanted regards rockyroadennis(a)aol.com

23 years, 7 months

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D*A*T*A* I*/*O* M*a*n*u*a*l*s

by CLeyson＠aol.com

Try http://www.spies.com/arcade/TE/index.html for the 29A programmer. Lots of other goodies there too :-) Chris

23 years, 7 months

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What did you ask "Santa" for this year.... : )

by mranalog＠attbi.com

Matt wrote: > So what is everyone else on the list asking for? Computer related... of > course..... I'm getting a nice 100% mechanical analog. http://dcoward.best.vwh.net/analog/libra.htm It's coming by Big Brown sled as we speak. Reagards, --Doug ========================================= Doug Coward @ home in Poulsbo, WA Analog Computer Online Museum and History Center http://www.best.com/~dcoward/analog =========================================

23 years, 7 months

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6502/Z80 speed comparison (was MITS 2SIO serial chip?)

by ajp166＠bellatlantic.net

From: Richard Erlacher <edick(a)idcomm.com> >without modification, in most cases, on a Z80,.by the time the 6502 became >popular. Now, I've always believed the 6502 at 1 MHz to compare favorably with >the 4 MHz Z80, but I used the Z80 running CP/M 2.2 to do useful work, since it >was a lot more trouble squeezing useful work out of a 6502 back in '78-'79. If anything I'd say CP/M was a factor more than any virtue of Z80. I say that as most "z80" code underused the Z80 as a fancy 8080. One may wonder if a cp/m like (or better!) OS existed for 6502 such that it was portable or easily ported if things may have developed differently. Allison

23 years, 7 months

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D*A*T*A* I*/*O* M*a*n*u*a*l*s

by mranalog＠attbi.com

Last fall I suddenly, in the space of two week, received five requests for a D*A*T*A* I*/*O manual I mentioned on ClassicCmp back in 1999. Thank to help from Arlen Michaels, I got all of those requests filled. Now, I don't mind copying manuals, but after two years and one move the manual and the files where a pain to dig out of "the pile", and these were not list members. So, the ClassicCmp list archive is the reason for the "*"s. Now, one of the people that requested a manual sent me a couple of PDFs that I wondered if anyone here would like to host? I want to get them out there so everyone can use them, but I didn't want to keep getting requests years from now via the archives. 1. D*A*T*A* I*/*O* 2*9*a* U*n*i*v*e*r*s*a*l* P*r*o*g*r*a*m*m*e*r* 9*9*9*-*0*0*2*9* dated May 1982 102 pages (includes schematics) size - 10 MB 2. D*A*T*A* I*/*O* U*N*I*P*A*K* 2* dated 1984 76 pages (includes family, pin*out codes and schematics) size - 8 MB So, if ONE person would like to host these files, (and not mention my name) I can put them up on the web one at a time to be grabbed. Regards, --Doug ========================================= Doug Coward @ home in Poulsbo, WA Analog Computer Online Museum and History Center http://www.best.com/~dcoward/analog =========================================

23 years, 7 months

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summit electronics

by Golemancd＠aol.com

anyone ever use this web site i cant get a response from them joe also this one http://www.summitelectronics.com http://www.ied.pios.com/

23 years, 7 months

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CoCo & MOS books

by mhstein＠usa.net

Three more books available: RS TRS-80 Color Computer Technical Reference Manual 26-3193, 69 pages RS TRS-80 MC-10 Micro Color Computer Service Manual 26-3011, 47 pages (Photocopy purchased from RS) MOS Technology MCS6500 Microcomputer Family Programming Manual, Jan '76, 8 1/2x11, approx. 200 pages. Will throw in Synertek 6500 & 6500B data sheets full of timing and cycle time info so you can join the fascinating (!) discussion presently raging among Dick, Allison & Ben. $4.95 ea plus postage, or BO, if anyone's interested. Meanwhile, the very best wishes of the season to everyone on the list; nice to have met all of you, virtually speaking, and especially the two I've had the pleasure of meeting in person. To those of you still patiently waiting to hear from me regarding items of interest, I haven't forgotten. Bear with me, and after the Xmas rush at the post office, I'll get back to you. And may the New Year be a more peaceful and less traumatic one than this one's been (although it doesn't look good...) Happy & fruitful collecting! mike

23 years, 7 months

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What did you ask "Santa" for this year.... : )

by csmith＠amdocs.com

> -----Original Message----- > From: Loboyko Steve [mailto:sloboyko@yahoo.com] > Where can I get one of these. Not the SGI Indy... I'm not sure, actually, I think it was a limited edition or possibly a prototype that they -- for some stupid reason -- never allowed to reach production. In fact, if you take "classic computer" as a descriptive term for a person who uses "classic computers," maybe she should go on the "hardest to find classic computers" thread. ;) Regards, Chris Christopher Smith, Perl Developer Amdocs - Champaign, IL /usr/bin/perl -e ' print((~"\x95\xc4\xe3"^"Just Another Perl Hacker.")."\x08!\n"); '

23 years, 7 months

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[tfitch@esleeck.com: PDP11]

by mrbill＠mrbill.net

Please contact Thomas directly if interested. I'm just passing this on. Bill ----- Forwarded message from "Thomas R. Fitch" <tfitch(a)esleeck.com> ----- From: "Thomas R. Fitch" <tfitch(a)esleeck.com> To: "'mrbill(a)pdp11.org'" <mrbill(a)pdp11.org> Subject: PDP11 Date: Fri, 21 Dec 2001 15:19:23 -0500 Mr. Bill, I have a PDP11 in two towers, with 2 crt's and keyboards, and a keyboard printer. All in excellent condition. I also have all of the original documentation. This product is available for pickup from our Turners Falls, MA location. Please contact me if you have any interest. Tom Fitch, Treasurer Esleeck Manufacturing Company 36 Canal Road Turners Falls, MA 01376 (413) 863-4326 ext 206 ----- End forwarded message ----- -- Bill Bradford mrbill(a)mrbill.net Austin, TX

23 years, 7 months

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Pyramid 90x

by dancohoe＠oxford.net

I recently brought home a Pyramid 90x. The old owner who had run the machine at his work in the 80's bought it from his employer about 1990, but never got it set up at home. Apparently he decided to dump it a few months ago, but because of its size didn't get the job done. However, he did put all of the software and the documentation on the curb for the garbagemen at that time. Mike Kenzie and I got there just before he called the recyclers for the machine itself. What I need is a boot disk or other software and any documentation that might be out there. According to the old owner, it starts by loading the boot program off the 8" floppy before it can find the fixed disks. Does anyone have anything for this machine? thanks, Dan Cohoe

23 years, 7 months

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Power Series

by csmith＠amdocs.com

> -----Original Message----- > From: Tothwolf [mailto:tothwolf@concentric.net] > Nice...I have a number 4D series machines myself. I haven't > yet found a > source for IRIX 4.0.5 and 5.3 for them tho :/ I have Irix 5.3 on CD-ROM, and have been assuming that will work for now. I also have the original disks (two of them) in the machine. > You can boot these machines with a dumb terminal on the first serial port. > The serial ports have a different pinout then just about any other > computer. I have a url with the info somewhere, and will look for it. Yeah, but it's an SGI ;) > I would recommend you have an electrician install a dedicated 20 amp > circuit. These machines are meant to be breakered at 20 amps. > I would not > recommend sharing an existing major appliance circuit, since you might > forget the computer is on and turn on the appliance. I am kind of leaning towards that option. The only question is price. My guess is it should certainly be less than $200 or so to have done, and likely less than $100, depending on the work involved. That is a guess, though. > holds the power switch. If you unscrew the retaining screw on > the metal > plate, it should slide out and have enough cable to set it on > top of the > machine. I've taken a look at the card-cage, actually. From your description of VGX graphics, it seems to me (not having the thing in front of me right now) that I may have had too many boards. What are the chances the graphics have been upgraded without changing the tags? Regards, Chris Christopher Smith, Perl Developer Amdocs - Champaign, IL /usr/bin/perl -e ' print((~"\x95\xc4\xe3"^"Just Another Perl Hacker.")."\x08!\n"); '

23 years, 7 months

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DEC bus driver/receiver chips

by djg＠drs-esg.com

>From: "Carlini, Antonio" <Antonio.Carlini(a)riverstonenet.com> > But I don't have that one - or anything > PDP-8 related ... anyone have WT78 > printsets or docs? :-) > Yes (assuming the VT78/WS78/WT78 are all the same thing). Are you needing some part in particular or just general looking? David Gesswein http://www.pdp8.net/ -- Run an old computer with blinkenlights.

23 years, 7 months

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6502/Z80 speed comparison (was MITS 2SIO serial chip?)

by CLeyson＠aol.com

Come on guys cool it. Who really cares if a Z80 is faster than a 6502 ? I sure as hell don't. For those who are interested check out the following: US Patent 4004281 Microprocessor Chip Register Bus Structure (6800) US Patent 4332008 Microprocessor Aparatus and Method (Z80) US Patent 3991307 ...on the fly correction to provide decimal results (6502) By the way, the 6800 Patent has complete circuit diagram. The Z80 also contained DRAM refresh circuitry that the 6502 didn't.

23 years, 7 months

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Need manual for Everex digital cassette drive

by dhquebbeman＠theestopinalgroup.com

> Does anyone have a manual, or know how to operate, an Everex digital > cassette drive? > > The one I have is all black, and has a DC-37 connector on the back that I > assume connects to an old-style IBM PC drive interface. If this is the > case, I assume I still need drivers to run this thing? And maybe some > operating software? An original IBM PC with the BASIC ROMs should be able to load >from cassette using LOAD and save using SAVE, shouldn't it? ? -dq

23 years, 7 months

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Now I'm impressed.

by csmith＠amdocs.com

> -----Original Message----- > From: Doc Shipley [mailto:doc@mdrconsult.com] > prompt on a v5.2 VAX/VMS system. OK, now I'm looking at the command > prompt. The SYSTEM password was "system". > TeeHee. I've had SYSTEM, "MANAGER" before. :) You can boot them conversationally, of course, even if you don't have the password, and gain privilege. I've done this on a good three or four machines, and there are a couple different ways to manage it. Regards, Chris Christopher Smith, Perl Developer Amdocs - Champaign, IL /usr/bin/perl -e ' print((~"\x95\xc4\xe3"^"Just Another Perl Hacker.")."\x08!\n"); '

23 years, 7 months

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Round two: PC vs the Dishwasher

by rschaefe＠gcfn.org

Well, it turns out the case isn't in as good of shape as the boards inside it. After a good washing, the cover has surface rust all over it. Not from the washing, but from the 'storage' it sufferred thru before I came across it. I ended up taking out the top drawer to make enough room to stand the case on it's end. I tried with it sitting flat on the top of it, but that didn't work out so well-- hadda run it thru twice. Bob

23 years, 7 months

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8284a, where to find?

by ajp166＠bellatlantic.net

From: Robert Schaefer <rschaefe(a)gcfn.org> >look for another one-- mouser and digikey are all that comes to mind. (Is >this an 8284a, or an 8284?) The 8284 and the 8284A are not the same part and it will make a difference. The 84A is easy to fins and common to many clone wrecks. Allison

23 years, 7 months

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6502/Z80 speed comparison (was MITS 2SIO serial chip?)

by ajp166＠bellatlantic.net

From: Richard Erlacher <edick(a)idcomm.com> >There are lots of things that you could compare, but the first things you've got >to leave out are the ones that aren't a Z80, which immediately deletes the Z180, >and Z280. The Z80 is not around any more than the 6502 is around. There are Why? they are still z80 core and code compatable. While they add things like serial IO, timers and MMU they are Z80, maybe more so than 65C02. Allison

23 years, 7 months

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MITS 2SIO serial chip?

by ajp166＠bellatlantic.net

From: Bill Pechter <pechter(a)ureach.com> >IIRC the Intel 8251 did full Sync as well as >Async which was a plus. It's annoying Yes, worked ok too. >drawback -- (DEC used it in the Robin and >Rainbow) was the lack of modem flow control >support. Design limited but it was there in the Robin. The robin was full modem controls on the comm port. >I'd have killed for an 8251 with >CTS/RTS/DSR/DTR and DCD all on chip. The only one the 8251 doesn't handle or have a pin for was DCD. The others are all there. >Perhaps it should've been done on two chips >if Intel couldn't get it on one. Pincount, they would have needed a 29 pin. ;) Allison

23 years, 7 months

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Microchannel FDDI

by vance＠ikickass.org

Hi. I am looking for Microchannel (MCA) DAS FDDI cards for my RS/6K's. Thanks. Peace... Sridhar

23 years, 7 months

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ROM preservation (Data I/O system 19)

by CLeyson＠aol.com

Geoff Reed wrote > I don't suppose you have the schematics for a model 29? Sorry Geoff can't help there. However if enough people are interested I am prepared to draw up the System 19 schematics in Orcad and provide a dump of the software. As the programmer is 20 years old, it falls into the classic category and should be documented somehow. More important still - programming algorithms for vintage silicon should be documented. Chris Leyson

23 years, 7 months

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Microchannel FDDI

by SUPRDAVE＠aol.com

In a message dated 12/21/01 5:19:04 PM Eastern Standard Time, vance(a)ikickass.org writes: << Hi. I am looking for Microchannel (MCA) DAS FDDI cards for my RS/6K's. Thanks. >> Ive got two SKNet ones that i'd be willing to trade provided you can find me some Serverguard cards...

23 years, 7 months

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ROM preservation (DataIO system 19)

by CLeyson＠aol.com

Correction: Supports devices up to 27256 and Intel Intellec 8/MDS

23 years, 7 months

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ROM preservation

by csmith＠amdocs.com

I've been thinking recently that I should possibly get a ROM reader/writer so that I can preserve the ROMs out of all my old parts, and I was wondering whether anyone had some experiences (good or bad) with any different programmers? Which programmers are good, which aren't so good, and why? Where is the best place to get one, and which is the best to get on a tight budget? What about making your own? (Note that I think this may be an interesting project, but I'd really rather put my time into other things right now, so this is near the bottom on my list of options...) One called "Leaper 3" interests me because of its ability to copy one ROM to another without any kind of computer hookup, which I imagine might be useful, but I know nothing else about it. Regards, Chris Christopher Smith, Perl Developer Amdocs - Champaign, IL /usr/bin/perl -e ' print((~"\x95\xc4\xe3"^"Just Another Perl Hacker.")."\x08!\n"); '

23 years, 7 months

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HP 1000/E

by pete＠dunnington.u-net.com

On Dec 21, 11:35, Steve Robertson wrote: > Took deliveery of my "New" HP 1000/E last week and yes Virgina, there really > is a Santa Clause. For those who would bash eBay, here's proof that there > are good deals to be had. Nice machine! I can see why you'd be pleased :-) -- Pete Peter Turnbull Network Manager University of York

23 years, 7 months

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ROM preservation

by CLeyson＠aol.com

DataIO and Stag programmers seem to be the industry standard. I picked up a DataIO system 19 on ebay recently. It will do vintage eproms up to 27128 as well as bipolar proms, no support for PAL's and PLA's. Comes with RS232, and supports most data formats except Intel Hex. Chris Leyson

23 years, 7 months

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siemens nixdorf laser printer drivers--model pageprinter md12.

by ROCKYROADENNIS＠aol.com

printer-driver needed for above printer regardsrockyroadennis(a)aol.com

23 years, 7 months

1
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test-drb December 2001