test-drb January 2002

test-drb@ccmp.vtda.org

303 participants
1201 discussions

by GOOI＠oce.nl

Indeed, the 68000 and 68010 pushed the same amount of data onto the stack, but the 68010 produced more different types of stack-frames than the 68000. If you wanted to speed up the ATARI-ST you could replace the 68000 with an 68010, but you needed to patch TOS. Otherwise the O.S. crashed. Nice was the fact that the 68000 and the 68010 are *pin-compatible*. I know, because my StarShip first ran on a 6802, then a 68000 and then on a 68010. I had to re-write a small part of the embedded OS that handles the stack-frame processing. Tight-loops (2 instruction) are cached. [My StarShip runs on a 68020 at 30 MHz. now] - Henk. > -----Original Message----- > From: Ethan Dicks [mailto:erd_6502@yahoo.com] > Sent: dinsdag 15 januari 2002 21:20 > To: classiccmp(a)classiccmp.org > Subject: Re: 68010 (was Re: Mac IIci) > > > > --- Pete Turnbull <pete(a)dunnington.u-net.com> wrote: > > On Jan 14, 14:56, Bruce Robertson wrote: > > > > > Yes, I seem to remember that with the 68000, there was an > interaction > > > with the Bus Fault signal... something to do with what > state got saved > > > on the stack; I don't remember the exact details > > After a bus fault, there was not enough information on the stack to > properly do an instruction restart from where the bus-fault occured. > > > Oops, I forgot about that. You're right; the 68010 saves > slightly more > > state on the stack than the early 68000. I have a feeling > that was fixed > > in later 68000; some traps save more state than others. > > Not as far as I know... the quantity of bytes pushed on the > stack should > be constant for a given member of the 68K family. A lot of > older software > for the Amiga that did things with the stack (debugging > tools, mostly) > assumed certain things relating to the stack - it became confused on > the '010 and up because the number of bytes did change for certain > traps (like bus error). I have the details at home, not with > me, in my > Motorola books, or I'd post them here. Eventually, people learned to > ask the OS what was going on, rather than paw through the stack > indescriminantly, kinda like when people got burned on the > first Fatter > Agnus Amigas - 1Mb of CHIP and 0Mb of FAST RAM - broke all kinds of > software that asked for a buffer of FAST RAM instead of > "fastest available > RAM". > > > You can't get 68010s any more, unless you can find old > stock somewhere > > :-( > > You can still get 68000s and 68020s. > > That's not surprising. Even when they were current, we had a > hard time > getting 68010 chips for our products. We paid $45 each for them at a > time when the 68000P8 was about $3 (eventually, I found them at a > surplus/overstock electronics dealer for $10). > > At the moment, I have dozens of 68000L8s and one tube of 68010P10s. I > hope I never have to look for any more 68010s. > > -ethan > > > __________________________________________________ > Do You Yahoo!? > Send FREE video emails in Yahoo! Mail! > http://promo.yahoo.com/videomail/ >

22 years, 6 months

Alpha Naked Mini / QA country code

by cisin＠xenosoft.com

Is anybody able or willing to help them? Where does Qatar stand in current politics? (what do they want to do with that disk???) -- Fred Cisin cisin(a)xenosoft.com XenoSoft http://www.xenosoft.com ---------- Forwarded message ---------- Date: Wed, 16 Jan 2002 18:49:20 +0300 From: MICROSERVE <microgrp(a)qatar.net.qa> To: info(a)xenosoft.com Subject: Please Help Dear Sir, I have very important 8" Floppy Disk and I need to make 20 copies Duplicate the floppy have very Old System used in Alpha LSI Naked Mini (4/90) Manufacture by Computer Automation in 1976 And this system used for Training Shooting Range Please inform me if possible for any cost? Best regards, Adnan Khanfer MICROSERE Doha - Qatar, Po Box 22904 Tel: + 974 4438779 - 4438767 Fax: + 974 4438710 Email: microgrp(a)qatar.net.qa

22 years, 6 months

IBM R390 IPL woes...

by out2sea00＠yahoo.com

Dave -- I appreciate you're coveting... but the system's not mine to give. It belongs to CSC, and was left-over >from our Y2K group. They had just stuck it in a closet and forgotten it. As the resident UNIX guru at the time it was on my inventory. When I moved out into the field I claimed it as a workstation. Since nobody knew it existed, and since it was way past the 3-year depreciation cycle, there weren't any objections. Unforunately CSC doesn't allow for any internal purchasing because of liability issues. So I couldn't buy it off them. I too would like to get a hold of a board. The system here at the office is the 591. That's the earlier board design. There are three different versions. I'd love to get a hold of an MCA board like this one because I have equivalent RS6000 hardware in my private collection. I could easily host such a thing. The later boards are, I believe, PCI, and in two differnt versions. I've never seen the board appear on auction sites -- and I'm worried that anyone who did have one, might not know it, since it just sits in otherwise ordinary gear. The best I can tell you is watch out for specific models of hardware and hassle the seller to see if they omitted the board. The models are the PC330 and PC500 intel systems. And in RS6000 they've used F50, 591 and a few 390 systems. >From what I've learned so far -- you won't hear much about these systems in the open systems community. If you go trolling through vendor and support organization sites, stick to the mainframe folks. I'm afraid that's as much of a brain dump as I've got on sourcing these boards. If you do find a source, please pass the information on. I'd love to add one to my collection. Until then I'll have to deal with Hercules. Not that this is a bad thing. Hercules on a decent piece of hardware is considerably faster then a P390 board. The one I've got is all of 72mHz clock speed and 128MB RAM. You could build a much more substantial LINUX based system to host a mainframe operating system. Best wishes, Colin Eby Senior Consultant CSC Consulting __________________________________________________ Do You Yahoo!? Send FREE video emails in Yahoo! Mail! http://promo.yahoo.com/videomail/

22 years, 6 months

trying to identify this 68K-based board...

by fmc＠reanimators.org

Eric Chomko <vze2wsvr(a)verizon.net> wrote: > It is an ISA-16 card. It has a 68000, w/2 27128 EEPROMs, 16 1259-15 > RAM chips and Intel chips, 82586 and 8253-5. The rest looks to be > TTL, a couple of connectors and couple of crystals, 16 and 20 MHz. > It was made by Bridge Communications, USA, in 1987. And it has a > D-shell 15 pin (like a Mac video -2 rows of pins) female connector > on the back. Intel 82586 is an Ethernet controller, DA15S is the right connector for an Ethernet transceiver, and Bridge Communications got bought by 3Com in 1987. I think you've got an intelligent Ethernet interface of some sort. -Frank McConnell

22 years, 6 months

OT? Apple Stylewriter problems (longish)

by pete＠dunnington.u-net.com

On Jan 15, 22:54, Tony Duell wrote: > > >Read that as 2SB1243 -- which is not in 'Towers International Transistor > > >Selector'. Can you check that number, please. In fact, please post all > > >markings on the original transistors. > > > > I thought I did, unless there are more markings on the side against the PC > > board? I'll look again. > > Peter has already posted some info on this transistor. My 'Towers', > normally a good reference for obscure transistors, has let me down... OK, > it's not a particularly recent edition... Towers is excellent, and I'd not be without my well-thumbed copy. I suppose I should buy a newer one some day. However, it seems like every time someone in Japan or other some other parts of the Far east designs a circuit, they design or specify a new transistor for it -- a transistor that is almost identical to some existing device, but has with some minor, often trivial, tweak. I suppose it may save some corporation a fraction of a yen on each of hundreds of thousands of units. Or perhaps the way it works is that a designer says "I need a transistor with the following parameters..." and someone makes a batch to order rather than using an existing design (for which they have no stock, because of just-in-time stocking) and the made-to-order gets a unique number, more like a batch number than a type number. That's why I bought the Japanese manuals (there's one for FETs and one for diodes as well as the transistor one), and more particularly, why I posted the main operating parameters. There are probably dozens of relatively common types that could be used as substitutes for a 2SB1243. If you need one, it's just a question of looking in your favourite sales catalogue and going down the list until you see something close enough. -- Pete Peter Turnbull Network Manager University of York

22 years, 6 months

ForSale/Trade: ADSL Modem & POTS line filter...

by DAW＠yalepress3.unipress.yale.edu

Help! I just moved from West Haven to Hamden, but my SNET ADSL service didn't, err, can't. SO.... I have the ADSL equipment for sale: Efficient Networks (?) SpeedStream ADSL modem, and a filter/splitter that connects at the phone block in your basement! No need for filters at each phone... I would prefer to trade for a cable modem setup, (Comcast cable service); but won't turn down cash either ;-) --- David A Woyciesjes --- C & IS Support Specialist --- Yale University Press --- mailto:david.woyciesjes@yale.edu --- (203) 432-0953 --- ICQ # - 905818

22 years, 6 months

IBM R390 IPL woes...

by out2sea00＠yahoo.com

--- Norm Aleks <norm(a)docnorm.com> wrote: > Hi, Colin. I'm trying to get a more-current MVS to > experiment with on > Hercules. Is that what you found, or was it just > the AIX? Was it on > p390.ibm.com? Norm -- You're right about the site. It's ftp://p390.ibm.com. The site covers all the multi-platform systems, and not just the AIX variant. And what I was after were the "support files". In other words the IO channel drivers. IBM doesn't publish iso's for the Application Development MVS there. And I'm guessing mine is as old as yours -- Jan 1997. For me, as a mainframe newbie crossing over from open systems, the version's irrelevant. But good luck locating images. Thanks, Colin Eby Senior Consultant CSC Consulting __________________________________________________ Do You Yahoo!? Send FREE video emails in Yahoo! Mail! http://promo.yahoo.com/videomail/

22 years, 6 months

Punch cards, punch & mag tapes (Toronto)

by mhstein＠usa.net

Sorry, a little overwhelmed by all this at the moment; will get back to ya. Ethan, AIM65 stuff is ready to go. John, still waiting to hear what you need for the Cromemcos. Will be off 'Net till Monday. mike ---------------Original Message----------------- Date: Thu, 18 Oct 2001 09:32:40 -0700 (PDT) From: Ethan Dicks <erd_6502(a)yahoo.com> Subject: Re: Punch cards, punch & mag tapes (Toronto) - --- "John R. Keys Jr." <jrkeys(a)concentric.net> wrote: > Has anyone claimed these yet ? If not I will take them. I tried to. Haven't heard back. Don't know who the lucky winner is, but I suspect several people expressed interest. - -ethan

22 years, 6 months

OT: FS, Metcal hot-air soldering iron

by mcguire＠neurotica.com

Uhh, what? I sell stuff on eBay all the time, and I love it dearly. I think you're thinking of someone else. I've been the [perhaps lone] person *defending* eBay through many of those flame wars. When I'm being an "outspoken critic", it's usually about "suits" and how they've ruined my industry and are working on destroying society. Or about Microsoft and their crappy products that everyone seems to think are so great. Never eBay though, because I *like* it. :-) -Dave On January 16, Ian Koller wrote: > > > > Is this going to be another one of those ridiculously > overpriced eBay items you are such a regular outspoken > critic of? Or is this one different, because it's you > selling this time? > > > > Dave McGuire wrote: > > > > Hi folks. Sorry for the off-topic crosspost, but I figure there > > might be some interest here. > > > > I have a Metcal model PHAP-01 hot-air soldering system here, in > > near-mint condition, that I'd like to sell. I figure I'd mention it > > here before going to eBay. I'm looking to get maybe $350-400 for it. > > Anyone interested? > > > > -Dave > > > > -- > > Dave McGuire > > St. Petersburg, FL "Less talk. More synthohol." --Lt. Worf > -- Dave McGuire St. Petersburg, FL "Less talk. More synthohol." --Lt. Worf

22 years, 6 months

OT: FS, Metcal hot-air soldering iron

by mcguire＠neurotica.com

Hi folks. Sorry for the off-topic crosspost, but I figure there might be some interest here. I have a Metcal model PHAP-01 hot-air soldering system here, in near-mint condition, that I'd like to sell. I figure I'd mention it here before going to eBay. I'm looking to get maybe $350-400 for it. Anyone interested? -Dave -- Dave McGuire St. Petersburg, FL "Less talk. More synthohol." --Lt. Worf

22 years, 6 months

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test-drb January 2002