- test-drb@ccmp.vtda.org - classiccmp.org

by lynchaj＠yahoo.com

Hi, I am preparing to get some S-100 6502 CPU board PCBs manufactured for the N8VEM and S100computers.com builders. These are CPU bus master only (no TMI circuitry) and include provisions for a 4K boot ROM. There is no onboard SRAM or other IO. The board includes a large prototyping area for builder customization. Assuming we can get 20 solid board builder commitments, I will place a PCB manufacturing order in the next few weeks. Please contact me by email if you are interested in participating. This is a hobbyist board built by hobbyists for hobbyists. The PCBs will be $20 each plus $3 shipping in the US and $6 elsewhere. http://n8vem-sbc.pbworks.com/w/browse/#view=ViewFolder&param=S-100%206502%2… http://www.youtube.com/watch?v=tgFUeJdO7-E Thanks and have a nice day! Andrew Lynch

14 years, 7 months

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APC 6808 EXORBUS board docs?

by chrise＠pobox.com

I'm looking for any documentation that might be around for APC Automation Products Company Microprocessor, PCB ASSY 0002-3768-151 which is a Motorola EXORBUS CPU board with the following goodies on it, 6808 CPU (w/ 4.000 MHz xtal) (2) 6821 PIA (4) 2716 EPROM M58725 2Kx8 SRAM 6840 timer 6850 ACIA there's a bipolar PROM too which is probably used as an address decoder of some sort. These appear to have been offered as an OEM product for integration into customer's designs rather than being some custom board for a specific purpose. Most parts are dated '83, '84. I have several of them. Any info about jumpers, address decoding or certainly schematics would be greatly appreciated! Chris -- Chris Elmquist

14 years, 7 months

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VCFMW6 Leftover Shirts

by silent700＠gmail.com

Now that we've all recovered from Turkey Coma and are thinking about the next holiday(s) to come, perhaps the geek in your life (that's ok if that's you) would like a rare, soon-to-be-collectable, highly fashionable souvenir T-shirt from the bygone Vintage Computer Festival Midwest 6! Here's the current list of sizes still available and links to some pics (should be updated fairly regularly:) http://chiclassiccomp.org/vcfshirts.html Shirts are $15 including shipping within the continental US. Contact me for international rates. Thanks and we hope to see you in person next year!

14 years, 7 months

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4000 Series CMOS Parts?

by michael.99.thompson＠gmail.com

A friend said that he has a collection of NOS 4000 series CMOS ICs. If there is any interest I will get them so they don't go in the trash. -- Michael Thompson

14 years, 7 months

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Surviving Pong cabinets - UK?

by jules.richardson99＠gmail.com

Query which got bounced via the NMoC mailing list - some journalist is looking for somewhere to play on a Pong cab in the UK. Does anyone keep tabs on surviving examples? I don't remember ever seeing one there over the years, but it's hard to believe that there are none left. The message just said cabinet; I'm assuming they're after an upright, but maybe the cocktail version would be acceptable too. Perhaps even a faithful replica of either would do the job as well. cheers Jules

14 years, 7 months

3
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Phone # for Joe Rigdon?

by eric＠brouhaha.com

Does anyone happen to have Joe Rigdon's phone number? I used to have it, but can't find it now.

14 years, 7 months

1
1
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Looks like a home brew PDP 111 here ... Soviet chips need not apply

by bfranchuk＠jetnet.ab.ca

http://porkrind.org/missives/the-core-memory-module-from-my-dads-homebuilt-…

14 years, 7 months

6
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CMD CQD-220TM problems

by fraveydank＠gmail.com

Here's a quandary that I've posted a few places, with varying success. I have a CMD CQD-220TM SCSI board (QBUS MSCP SCSI, drive and tape) which was working fine when I got it. It's now only partially functional with a few odd symptoms on my 11/23+. The basic problem is that the CPU (it's actually an embedded 8086 system) seems unstable, but in a somewhat deterministic way. I can have it copy the PDP-11 online utility into RAM and execute that, and I can perform a few operations on that before it bugs out (basically the CSR stops responding to requests and the utility hangs waiting for a confirmation code). The most interesting is when I try to run the "other utilities"; it starts up, but then crashes when trying to display the serial number. I should also mention that the UART doesn't seem to work, and I've tried both wirings (NULL modem and non) with no success. It's wired up like a standard DEC serial port (the header on the board has the same Rx/Tx and GND pins, which are all that are connected in my adaptors), so I just attached one of my adaptors to it. Here's the really interesting bit. After running over both the PDP and the 8086 side for a while with IDA Pro (which has been a lifesaver on many projects), it looks like the "other utilities" section actually talks directly to the 8086; the software on the board redirects the character output to one of the CSRs and the PDP and the 8086 converse that way. You get the same output as the UART. This is only true for the "other utilities" section, though; the rest of it executes natively on the PDP. Has anyone experienced this sort of problem with this (or a similar) card? I'm not really keen on building up a trace module to figure out what the 8086 is doing (though I have a few FPGA eval boards which would work just fine if I use SignalTap; I just don't want to go through the trouble of building it if the answer is simple). I'm honestly puzzled by this; it was working fine when I got it, and then I plugged it in after a move and no dice. I'm still banging on it with IDA pro. I hope it's not a busted PAL/GAL/PLA (of which there are about 20 on the board), because for the most part there's no way of redoing any of those without spending weeks on the assembly trying to figure out what they're supposed to do. The SCSI chip (a 53C90A) is a socketed PLCC, and they're not impossible to find second-hand, so if it turns out to be a problem there, I should be able to fix that by just throwing some money at it. - Dave

14 years, 7 months

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Anyone have a Hobby Board for sale (4" x 4.5" , 44 contacts, 1.56 on center contacts) wire wrap prototype board

by nick.allen＠comcast.net

14 years, 7 months

4
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Canon VP-3000 most FAQ plus other important information

by chrism3667＠yahoo.com

I have opened up my Canon VP-3000. It has an 8088. I need docs and warez. I have a boxed up set of docs for the AT & T 7300 UNIX PC. I don't want them. They're free for shippage. Let me know.

14 years, 7 months

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Seattle Retro-Computing Society: last 2011 meeting Sat. Nov. 26th

by searetcompsoc＠gmail.com

Many thanks to whomever unclogged the backlog that, until recently, kept me from accessing cctalk or cctech. Now I can post these announcements myself! And there was much rejoicing, etc. -------- Come one, come all, to the Seattle Retro-Computing Society's monthly meeting, on Saturday, November 26th, 2011! You don't want to miss this one -- it's our last meeting until January 2012. Do you do any of the following with old computers near Seattle? + Use, collect, and/or restore them + Play games on them + Write programs for them + Develop new hardware for them + Help other people do any of the above If your answer was "yes," as I expect it will be if you're reading this near Seattle, then the SRCS is for you! We exist so you can show off your awesome stuff, bounce ideas off of fellow enthusiasts, and be inspired by one another's achievements, plans and aspirations. No idea is too big or too small, and we're not picky about what flavor of vintage machine you prefer! Come on down and tell us about it! Please note that, as it would fall on Christmas Eve and no one would attend, we will not be meeting in December. If you miss this meeting, you won't get to see everyone (and their nifty stuff) again until January. The meetings are graciously hosted by the Living Computer Museum, which is gradually fitting out a computer museum in Seattle's SODO neighborhood. There will be refreshments, a Buy-Sell-Free-Trade table, and enough table space & power to set up anything you may want to show off! For further details, please see our web page at http://www.seattleretrocomputing.com/ and our mailing list at http://groups.google.com/group/seattle-retrocomp . Hope to see you there! Gordon "gsteemso" Steemson SRCS agitator-in-chief -- The Seattle Retro-Computing Society http://www.seattleretrocomputing.com/

14 years, 7 months

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Anyone with Cipher F880 experience?

by fraveydank＠gmail.com

I have a DEC TS05 (re-badged F880 without high-density mode; otherwise same PCB and everything) which is poorly behaved. Before I go diving in with the maintenance manual, is there anyone on here with experience repairing F880s? Symptoms: - It occasionally just resets (especially once it gets warmer). I'm willing to bet this is a flaky regulator somewhere, but I don't have a digital scope to see the transients very well. - When loading (and occasionally during operation, if it ever gets that far), it bugs out with either a compliance arm or tachometer error. Both of the superficial diagnostics for the compliance arm and the tachometer indicate no problems, so I'm assuming it's a problem somewhere in the logic. It only successfully loads maybe one time out of 20, even when I load it pre-threaded (1 out of 3 when it's cold, but it doesn't stay that way for long), which makes the first problem all the more irritating. - Dave

14 years, 7 months

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SUN/HP/DEC Equipment for pickup in Slovenia

by janprunk＠gmail.com

Disolving my collection of old computer stuff. Only for personal pickup in Ljubljana, Slovenia. If you want the computer badly, the shipping wont be less than 40 EUR/piece inside Europe, for USA or Asia shipping, you better forget it ! Stuff must be picked up latest until the new year. I accept any reasonable offers above 20 eur/computer to my E-mail address. The equipment consist of 1 x Hewlett Packard 9000 E35 2 x SUN Sparcstation 4 1 x Digital DEC 2000 Alpha 3 x Hewlett Packard Appollo 9000 712/60 1 x Hewlett Packard PC 9000 PC-308 (XT) 1 x Digital DEC 3000 1 x Power Macintosh 7500/100 Please for any queries contact me directly to my E-mail address janprunk at gmail.com I don't follow the mailing list. Regards, Jan

14 years, 7 months

1
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o_O

by stephane.tsacas＠gmail.com

I don't know what to think about this http://www.pixiv.net/member_illust.php?mode=medium&illust_id=16362209 -- Stephane FreeDonne <http://www.freedonne.org> Join FreeDonne - Rejoignez FreeDonne.

14 years, 7 months

8
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TeX - Knuth - Software quality - Re: Bug-Free Software, was: Re: on FPGA simulation

by mcguire＠neurotica.com

...especially coming from people so far removed from them that they have no information to draw on but their own assumptions. Homework is done in Word. Papers are done in LaTeX. -Dave William Donzelli <wdonzelli at gmail.com> wrote: >> While its true that WYSIWYG has replaced markup for most academic >> publishing, TeX (or more properly the macro packages on top of TeX) >> are still superior in the area where it was created: typesetting >> mathematics. > >Yes, and that is what, 1% of all academic publications? Maybe 0.1%, >for stuff that Word can not handle? > >"Standard" is a funny word. > >-- >Will

14 years, 7 months

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information disappearing, was Re: HP classic computer site "Computer Asylum"-- gone dark?

by mcguire＠neurotica.com

8-) Cameron Kaiser <spectre at floodgap.com> wrote: >> > Dave, what did you settle on? >> >> DSpace from MIT. > >And here I was hoping for WAIS' triumphant return. :) > >-- >------------------------------------ personal: http://www.cameronkaiser.com/ -- > Cameron Kaiser * Floodgap Systems * www.floodgap.com * ckaiser at floodgap.com >-- "Another day, another dangling modifier" -----------------------------------

14 years, 7 months

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TeX - Knuth - Software quality - Re: Bug-Free Software, was: Re: on FPGA simulation

by mcguire＠neurotica.com

Got any data to back that up? Been to any universities lately? Read many research papers? I do all the time, and most are done in LaTeX. Like it or not. -Dave William Donzelli <wdonzelli at gmail.com> wrote: >>> these don't seem to have impaired their reliability, >>> performance, or sheer longevity: Being the 30-year de facto standard in >>> academic publishing. > >TeX is, well, sort of the "de facto standard". For the past ten years, >Word has done all the heavy lifting in academics, like it or not. > >-- >Will

14 years, 7 months

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HP classic computer site "Computer Asylum"-- gone dark?

by hp-fix＠xs4all.nl

> > A while back, when I was restoring my HP 9825B, I found a great site with lots > of beautiful pictures of HP classic computers in various states of disassembly. I > believe it was called "Computer Asylum" at www.bohemiae.com. Now the site > seems to have disappeared. Did it get relocated, or hidden intentionally by the > "warden" of the asylum, or is the site just gone? It would be a shame if so. Did > anybody happen to archive some of those images and pages? > > > > Thanks for any info, > > > > Dave > > I found remnants of the website (last crawled on July 8th) at > http://www.archive.org/web/web.php - not sure what happened to it, though, > there also did not seem to be any reference to computer asylum in the pages > that are archived there. It's related to the UK firm Bohemiae house owned by Jiri Picka The site can be found at : http://www.computerasylum.co.uk/ The company site which also leads to the asylum : http://www.bohemiahouse.co.uk/index.html -Rik

14 years, 7 months

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Xeltek algorithm generator?

by fraveydank＠gmail.com

Someone mentioned something about a Xeltek algorithm generator a while back. Any idea how that one works? The NMC9306 algorithm seems to be non-functional even for a tube of 9306s that seem to work fine in their target device (the aforementioned CQD-220). Looking at it in a hex editor, the algorithms appear to be PE (either executables or libraries), and IDA brings them in OK, but I'm not in the mood to reverse engineer more 8086 code to fix this stupid ROM burner. Worst case, maybe I'll build a quick and dirty 9306 communicator on my DE1. :-) I already have a perfectly functional UART peek/poke unit. - Dave

14 years, 7 months

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(OT) SmartMedia un-erasing - help?

by mtapley＠swri.edu

Joe P., thanks for the pointer to digital image recovery! I'll find a Windows machine and try it if I can't work the problem with my Mac. ----- John F, DigitalForensics will also get a shot when/if I start seeing bits of files recovered. That's not looking so likely, though. ----- At 19:31 -0600 11/17/11, Ian wrote: >Not that I've ever accidentally deleted files from a camera card. No. Never. You have my sympathy and thanks! What was on my card would have been all .jpg compressed images, so Photorec looks perfect. ------ At 19:31 -0600 11/17/11, Ian and Mouse pretty much chorused: >You need to specify the device itself, not the mountpoint. Type >mount to get a list of all the devices that are currently mounted, >and see which one corresponds to the /Volumes/Untitled mountpoint. >Unmount it from the command line, then use dd to copy it to a file. Ah! mtapley-3:~ mtapley$ mount ... /dev/disk1s1 on /Volumes/Untitled (local, nodev, nosuid) mtapley-3:~ mtapley$ su root ... mtapley-3:/Users/mtapley root# umount /dev/disk1s1 mtapley-3:/Users/mtapley root# dd if=/dev/disk1s1 of=PhotosToSort/LostCard/ddClone128M.dd conv=noerror,sync 255953+0 records in 255953+0 records out 131047936 bytes transferred in 153.810460 secs (852009 bytes/sec) The naive shortcut to /Volumes just got me a symlink or something? I'm embarrassed to admit I had to hit more man pages to remember that unmount is spelled umount. Anyway the dd command chugged for several minutes.... ...at the end of which, I got another image which was composed almost entirely of "FF" pairs, according to OxED. Near the start, there is, as in the other images, "FAT16", some stuff that says "DCIM" and "Trashes", "100OLYMP", a "Mac OS X" string, a "This resource fork intentionally left blank " string, and a few other short (10's of bytes) bits of stuff in mostly 00 areas. After that, just an ocean of FF pairs. Not surprisingly, Photorec finds nothing. Likewise for Exif-U. 0 files saved in /Users/mtapley/Applications/testdisk-6.13/recup_dir directory. Recovery completed. Although I'm willing to go on and try other tools if people want, I've become a tad discouraged at this point. Am I right to be so? It looks to me like the camera re-initialized the card and wrote all FF, ready to be recorded on, and if Mouse is correct that's pretty much that. Even for the cool Yellowstone photos, I'm not willing to pay for an AFM image of the flash memory. Cheaper to round up the family and go back to Yellowstone. Any further suggestions? Expecting none, I still want to offer most heartfelt thanks to everyone for their pointers and tips. If *this* group can't help me, it's a testament to how well and truly I managed to screw myself. -- - Mark 210-379-4635 ----------------------------------------------------------------------- Large Asteroids headed toward planets inhabited by beings that don't have technology adequate to stop them: Think of it as Evolution in Fast-Forward.

14 years, 7 months

2
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Intel MDS units

by wmachacek＠q.com

I just picked up a couple of Intel MDS units last week and now I'm not quite sure what to do with them. I have an MDS-225 with an MDS-230 keyboard. The unit is dated 7/80. I also have an MDS-120 with an MDS-120 keyboard. This unit also includes an ICE 86A BB Intellec module which is attached. I have no documentation to go with these items and as far as I can tell, they were taken out of operation many years ago and just stored. I have no way of verifying if they are working or not. Is there a market for these units? They are pretty heavy. I can strip them myself if need be, but if there is someone who can put these to good use, I'd rather see them go there. Any ideas, thoughts will be appreciated. Bill Machacek Colo. Springs, CO

14 years, 7 months

2
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DEC and PDP links "Gordon Bell's Publications"

by vintagecoder＠aol.com

I guess everybody already knows about this: http://research.microsoft.com/en-us/um/people/gbell/Digital/DECMuseum.htm Since I haven't used or seen DEC gear since the 1970s I found many things of interest on the page, specifically "Digital at Work" in PDF. Unfortunately many of the pictures are almost illegible. Still a good read. -- +------------------------------------------------------------------------+ | Vintage Coder America Online ivagntrpbqre at nby.pbz <ROT13> | | | | Collecting: DOS assemblers, compilers, & books (Z80, M68K, 6502, 808X) | | Software & doc for IBM S/360 through OS/390 | | | | Wants: Ada 95 compilers for MVS/ESA & Solaris SPARC | | PL/I X Optimizing Compiler for MVS, APL/SV for MVS | | Stony Brook Modula-2 for Solaris SPARC | |---------------------------------------+--------------------------------| | Powered by Slackware 64 Intel and Solaris 10 SPARC | |=======================================+================================| | PGP Key 4096R 0x1CB84BEFC73ACB32 Encrypted email preferred | | PGP Fingerprint 5C1C 3AEB A7B2 E6F7 34A0 2870 1CB8 4BEF C73A CB32 | +------------------------------------------------------------------------+

14 years, 7 months

1
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HP classic computer site "Computer Asylum"-- gone dark?

by dfnr2＠yahoo.com

A while back, when I was restoring my HP 9825B, I found a great site with lots of beautiful pictures of HP classic computers in various states of disassembly.? I believe it was called "Computer Asylum" at www.bohemiae.com.? Now the site seems to have disappeared.? Did it get relocated, or hidden intentionally by the "warden" of the asylum, or is the site just gone?? It would be a shame if so.? Did anybody happen to archive some of those images and pages? Thanks for any info, Dave

14 years, 7 months

2
1
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VAX "mainframe" available?

by stephane.tsacas＠gmail.com

http://thedailyreview.com/news/gop-candidates-for-county-office-speak-in-to… -- Stephane FreeDonne <http://www.freedonne.org> Join FreeDonne - Rejoignez FreeDonne.

14 years, 7 months

4
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(OT) SmartMedia un-erasing - help?

by mtapley＠swri.edu

At 12:00 -0600 11/17/11, David R. wrote: >I guess it's possible... does SmartMedia format as FAT[12|16|32]? Questions that prompted some more research. Disk Utility (see below) thinks MS-DOS File System (FAT16). >Probably a good idea to make a backup image of the card before you >do any experiments, though. If you have access to a UNIX-y machine >that can access the card, dd should do the job. I don't know what >to use on Windows. (Thanks also to Liam and Ian, both also suggesting the same thing.) My normal process was to read the card using a SmartMedia to PCMCIA adapter on a PowerBook G4. Stage 1 of the disaster happened when I got impatient as OS X.4's driver was re-writing the directory, and manually ejected the PCMCIA adapter. At that point, the SmartMedia became un-mountable either on the camera or on the Mac/adapter. Stage 2 happened when I asked the camera to use its little hammer-icon process on the card, hoping that would allow me to edit - no such luck. It reformatted. I did make a .dmg clone of the SmartMedia after re-formatting it, using a freeware called "Exif Untrasher". There are some odd things about that (like, parts of very very old images still left on the card, and images that I'm surprised were ever on that card). Also, the 128MB card was mostly full, but the Exif-U .dmg is only 62.5 MB. I'm thinking maybe I copied the wrong card? Just now, I repeated that process and came up with a 125 MB file (more what I expected). I also made a copy using DiskUtility, also 125 MB. What's the correct incantation for a dd command under OS X.4 Tiger? The naive dd if=/Volumes/Untitled/ of=clone128M.bin conv=noerror gets only 8k bytes. On the resulting files, Exif Untrasher finds nothing. That makes some sense, as examining the files (both the Exif-U generated and the Disk Utility generated) shows mostly 00's, with the occasional block of FF, and a few random things at the start like "DOS FAT 16" and "this resource fork intentionally left blank" (probably written when I put the card into my OS9 Powerbook 3400's PC slot). I think the camera's format was a real "format" format, ie rewrote all the flash memory to 0. I'm hoping for something that will read residual charge left in the flash even after a format/reset ... and hoping the bill for that isn't something that only a three-letter agency would be interested in. -- - Mark 210-379-4635 ----------------------------------------------------------------------- Large Asteroids headed toward planets inhabited by beings that don't have technology adequate to stop them: Think of it as Evolution in Fast-Forward.

14 years, 7 months

3
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Wanted : SAA5070 datasheet

by ard＠p850ug1.demon.co.uk

Does anyone have any information on the Philips / Mullard (/ Signetics?) SAA5070 ('Lucy') chip)? It's a 40 pin DIL package that contains much of the elctronics of a 1200/75 baud modem and I believe some other I/O ports. The usual data sheet sites don't seem to have it, my old databook has the other ICs in the familiy (like the SAA5050 character generator), but not this one. I am pretty sure I saw a data sheet on it years ago, so I think the data was published A full data sheet would be ideal, but even just a pinout would be a great help. Thanks in advnace for any help -tony

14 years, 7 months

1
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(OT) SmartMedia un-erasing - help?

by john_finigan＠yahoo.com

> I have a 128 MB Smart Media card from my camera which I >inadvertently formatted, erasing a whole pile of really good photos >from Yellowstone Park, in mid-June 2009. It recently re-surfaced in >my pile of things to do. > >1) Is there any hope at all that the original images are recoverable? > >2) Any recommendations on where to go to get that done? Yes, I think you stand a good chance of getting something back.? Assuming you're on a unix-like system:? First take an image of the card with dd or something similar.? Then compile this program:? http://www.digitalforensicssolutions.com/Scalpel/ If your photos are jpegs, edit the config file to enable jpeg and then run it against the disk image.? If they're some less common format, you might have to open a sample file in a hex editor and see if it has a recognizable header, and add that header to the config file. The program does a string search through the image and pulls out anything which starts with a particular header.? Obviously this makes it useless for recovering files that don't start with a recognizable sequence of bytes, and also for fragmented files. Please feel free to email me off list if you need a hand. I think the chkdsk-like tools others have suggested could work too, but what's neat about this method is that it is filesystem agnostic (although susceptible to fragmentation). John Finigan

14 years, 7 months

1
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Processor_Technology 8KRA revC

by billdeg＠degnanco.com

I noticed that there is no copy of the Processor_Technology 8KRA assembly and test instructions manual online (includes jumpers, schematic, test code), so I made a scan and posted a copy. Feel free to download/mirror elsewhere. Note my copy is Rev C. http://vintagecomputer.net/processor_tech/Processor_Technology_8KRA_revC.pdf Bill Degnan

14 years, 7 months

1
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(OT) SmartMedia un-erasing - help?

by mtapley＠swri.edu

All, I have a 128 MB Smart Media card from my camera which I inadvertently formatted, erasing a whole pile of really good photos >from Yellowstone Park, in mid-June 2009. It recently re-surfaced in my pile of things to do. 1) Is there any hope at all that the original images are recoverable? 2) Any recommendations on where to go to get that done? OT-ness is that it applies to a (now) 10-year-old camera, which is a pretty tenuous thread. However, I think I dimly recall a discussion on this topic here recently, so if anyone can help me, please do! Private email is fine, if the topic is not deemed of general interest. -- - Mark 210-379-4635 ----------------------------------------------------------------------- Large Asteroids headed toward planets inhabited by beings that don't have technology adequate to stop them: Think of it as Evolution in Fast-Forward.

14 years, 7 months

7
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Looking for Memory Modules for DECstation 5000/2xx

by jjacocks＠mac.com

Does anyone here have DECstation 5000 memory that they would be willing to part with? I'd prefer 32mb modules, of course, but I'll take 8mb modules. The best price that I can find, through resellers, is ~?55 + shipping _per module_ for the 32mb modules. I'd hope to do better than that. For shipping purposes, I'm located in Queenstown, MD, USA, zip 21658. Thanks! - Alex

14 years, 7 months

1
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DSP56001 MandelZot (was: Re: Oldest CPU Chip)

by mtapley＠swri.edu

At 16:47 -0600 11/15/11, Eric wrote: >In that timeframe I was using a single Motorola DSP56001 to do >Mandelbrot set computations, and it was *much* faster than an array of >8051s. ... Originally I did this with a >386 PC, but later hooked it up to a Macintosh, and Dave Platt added >plugin support to MandelZot so I could use it without writing an entire >custom Macintosh application.... MandelZot - one of my favorite-ever applications, and Dave Platt is one of my favorite-ever software authors (just for that program). If you still talk to him, please send my regards and thanks! I saw once, but don't have, a NeXTStep application which did a side-by-side comparison of Mandelbrot set calculations on the 68030 (on the original Cube) and on the DSP56000 audio co-processor. The DSP56000 was faster. That application dropped off the NeXT radar when the newer machines came out with the 68040, since that CPU was faster than the DSP56000. Personally, I think it would be awesome to resurrect that code and get Distributed.net running on my NeXT's '040 and 56000 simultaneously, but have not managed to squeeze time into my schedule to (learn how to and then) do that. At 16:47 -0600 11/15/11, Ethan wrote: >...ISTR there's an expiry mechanism in the SETI at Home client that >if you request a work unit and don't return it in a few days or weeks, >it's discarded. ... essentially it put a de facto lower bound on the >amount of CPU you could throw at the problem ... AFAIK, Distributed.net doesn't have that feature since the only problems they (currently) work on are very massively parallel: http://www.distributed.net/ for details. Current clients for AmigaOS/68k and NeXTStep/68k (I'm running it) exist, so that may give a de facto lower boundary for the effective compute power an 1802 array would have to contribute, but I'll go out on a limb and suggest you probably can contribute with anything you can make run. Their *earliest* projected completion date for any active project is 22-Jul-2015. -- - Mark 210-379-4635 ----------------------------------------------------------------------- Large Asteroids headed toward planets inhabited by beings that don't have technology adequate to stop them: Think of it as Evolution in Fast-Forward.

14 years, 7 months

1
0
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BeOS R5 believes the end of the world happens in 2011

by spectre＠floodgap.com

Or at least my BeBox does: the Time control panel won't let me enter the year 2011. I set it to 2005 since that was the calendar match. I can't find anywhere that addresses this for R5 -- anyone know? The epoch seems to start in 1965, so assuming it is a 32-bit time counter, internally it should still be able to handle that. -- ------------------------------------ personal: http://www.cameronkaiser.com/ -- Cameron Kaiser * Floodgap Systems * www.floodgap.com * ckaiser at floodgap.com -- "I'd love to go out with you, but I'm taking punk totem pole carving." -----

14 years, 7 months

8
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Xerox Star on Ebay

by billdeg＠degnanco.com

Xerox Star on Ebay http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=270854962233 Let me know if you have questions. Bill

14 years, 7 months

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FreeBee (AT&T 3B1 emulator) -- pagefault handling fixed!

by classiccmp＠philpem.me.uk

Hi guys, I've just uploaded a new version of my AT&T 3B1 emulator: http://hg.philpem.me.uk/3b1emu/ Andrew Warkentin sent me two patches this morning which fix a long-standing CPU emulation bug and an issue with the polarity of the UDS and LDS bits in the BSR0 register. The end result of this is that the current TIP build will run the full battery of PVTEST CPU diagnostics, with the exception of the hard disk controller test (which is hardly surprising seeing as I haven't implemented the HDC). For reference -- this is either the Simple Mode CPU test, or the Expert mode (s4test) Test 12,0 (group 12, ALL subtests). Still to do: - Hard disc controller emulation - Fix the floppy controller implementation (this still fails PVTEST with a Read Timeout error, but boots the Test disk correctly...) - Add support for emulating the different motherboard revisions - Add some form of status bar along the bottom (disc status, heartbeat/status LEDs and so on) - Add some form of UI to allow disc images to be swapped in and out - Serial I/O and modem emulation (or at least enough of a facsimile to fake out the I/O tests). - Add some way of triggering the extended keys (a PC keyboard doesn't have enough keys to emulate the entire 3B1 keyboard). - Try and reduce the CPU load. It currently runs my 1.6GHz AMD MV40-based laptop at near 100% CPU... Comments, criticisms and patches are, as always welcome Thanks, -- Phil. classiccmp at philpem.me.uk http://www.philpem.me.uk/

14 years, 7 months

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Oldest CPU Chip

by ploopster＠gmail.com

What is the oldest microprocessor still being manufactured? Z80? Peace... Sridhar

14 years, 7 months

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on FPGA simulation

by tshoppa＠wmata.com

> As far as I know, there is no reasonable logic design > using transmission gates that can't be restructured to use something > else instead. Probably true but some designs using transmission gates are so incredibly elegant. Look up Caldwell and Keister-Ritchie-Washburn and you will find that there are some classes of problems that are handled very nicely with transmission gates (AKA relays) but are cumbersome with more modern symbology. This class of problem is broadly called "iterative networks". And these are real world problems important to designers of low to high complexity systems in that era. Interestingly, since the modern tools no longer make these problems feasible, hardly anyone tries to solve them with the same efficiency anymore. (Some of the combinatoric problems that are easy with iterative networks happen to overlap closely with classic cryptography BTW.) > Transmission gates are really a hardware optimization, > and not part of pure digital design. Maybe, if you definition of pure digital design limits you to NANDS for example. But all the logic design handbooks/textbooks up until the 60's were inclusive of transmission gates as basic elements. Tim.

14 years, 7 months

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FreeBee (AT&T 3B1 emulator) -- pagefault handling fixed!

by philpem＠philpem.me.uk

Hi guys, I've just uploaded a new version of my AT&T 3B1 emulator: http://hg.philpem.me.uk/3b1emu/ Andrew Warkentin sent me two patches this morning which fix a long-standing CPU emulation bug and an issue with the polarity of the UDS and LDS bits in the BSR0 register. The end result of this is that the current TIP build will run the full battery of PVTEST CPU diagnostics, with the exception of the hard disk controller test (which is hardly surprising seeing as I haven't implemented the HDC). For reference -- this is either the Simple Mode CPU test, or the Expert mode (s4test) Test 12,0 (group 12, ALL subtests). Still to do: - Hard disc controller emulation - Fix the floppy controller implementation (this still fails PVTEST with a Read Timeout error, but boots the Test disk correctly...) - Add support for emulating the different motherboard revisions - Add some form of status bar along the bottom (disc status, heartbeat/status LEDs and so on) - Add some form of UI to allow disc images to be swapped in and out - Serial I/O and modem emulation (or at least enough of a facsimile to fake out the I/O tests). - Add some way of triggering the extended keys (a PC keyboard doesn't have enough keys to emulate the entire 3B1 keyboard). - Try and reduce the CPU load. It currently runs my 1.6GHz AMD MV40-based laptop at near 100% CPU... Comments, criticisms and patches are, as always welcome :) Thanks, -- Phil. philpem at philpem.me.uk http://www.philpem.me.uk/

14 years, 7 months

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[SunHELP] Developer's Edge book free pdf on Oracle Blogs

by vintagecoder＠aol.com

From: Kevin Bowling <kevin.bowling at kev009.com> > Also, the link is not working for me :( I'm not sure why, sorry about that. The book is now on the front page of Darryl's blog. Hopefully this link will work: http://blogs.oracle.com/d

14 years, 7 months

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can someone identify these boards?

by tshoppa＠wmata.com

> I know the M8417 AA is 16k, and the BB is 32k, but I have a BE and a BF. > Anyone have a list with these numbers on it? With very few exceptions on DEC solid state memory boards over a long era, first letter is the size, second letter is the chip manufacturer. Often for the first letter, each letter up means a doubling in capacity but not always true (because there were 3/4 populated boards for example.) The mapping of last letter to manufacturer depends on rest of part number. M8417-BB is 32Kx12 Mostek 4027 chips M8417-BE is 32Kx12 Fujitsu 8227 chips M8417-BF is 32Kx12 Intel 2104A chips The "Edited Option Module List" is your friend. Hardly pocket sized though :-)

14 years, 7 months

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VHDL PDP11

by tpresence＠hotmail.com

I have a Xilinx ML605 Dev kit I would be willing to attempt this with if someone thinks its valuable, but I am a newcomer when it comes to FPGA. I do have the full toolsuite. Kevin

14 years, 7 months

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Developer's Edge book free pdf on Oracle Blogs

by vintagecoder＠aol.com

A book containing blog entries and articles from Darryl Gove, one of Sun's compiler guys, has been made available as a free download on Oracle. http://blogs.oracle.com/d/tags/sparc Look for "The Developer's Edge" on the right margin and click to download the book as a PDF. Lots of good stuff in there including much SPARC info I haven't seen elsewhere. Get it while quantities last! -- +------------------------------------------------------------------------+ | Vintage Coder America Online ivagntrpbqre at nby.pbz <ROT13> | | | | Collecting: DOS assemblers, compilers, & books (Z80, M68K, 6502, 808X) | | Software & doc for IBM S/360 through OS/390 | | | | Wants: Ada 95 compilers for MVS/ESA & Solaris SPARC | | PL/I X Optimizing Compiler for MVS, APL/SV for MVS | | Stony Brook Modula-2 for Solaris SPARC | |---------------------------------------+--------------------------------| | Powered by Slackware 64 Intel and Solaris 10 SPARC | |=======================================+================================| | PGP Key 4096R 0x1CB84BEFC73ACB32 Encrypted email preferred | | PGP Fingerprint 5C1C 3AEB A7B2 E6F7 34A0 2870 1CB8 4BEF C73A CB32 | +------------------------------------------------------------------------+

14 years, 7 months

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can someone identify these boards?

by trestivo＠cfl.rr.com

I know the M8417 AA is 16k, and the BB is 32k, but I have a BE and a BF. Anyone have a list with these numbers on it? Thom Thomas Restivo Technical Assurance Resources, Inc. PH/Fax: (321)768-0006 Cell: (321)537-2384

14 years, 7 months

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FPGA history (was Re: VHDL PDP11)

by swtpc6800＠comcast.net

Signetics started using the term Field Programmable Gate Array in 1977 or 1978 to describe their 82S102 (open collector) and 82S103 (tri-state) bipolar devices. They had 16 inputs and 9 outputs with a programmable AND array. The name was mostly a marketing ploy because they were small devices similar to MMI's PALs. Gate Arrays were the popular large scale mask programmable logic device at the time. Signetics introduced the 82S100/82S101, the Field Programmable Logic Array, in 1975. The term FPGA became popular with larger devices such as the Xilinx LCA (1985) and the Actel ACT devices (1988). Both of these had many small logic elements as opposed to the wide AND gates of the early Altera devices. You also designed these devices by creating a schematic using a standard macro cell library, just like a real Gate Array. Actel even mimicked the LSI Logic Gate Array library. In a few years, hardware description languages started making inroads into FPGA designs. I worked at Data I/O from 1981 to 1997 developing commercial software for designing with programmable logic. The PLD language, ABEL, was one of projects I worked on. Michael Holley

14 years, 7 months

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A Lisp Machine on an FPGA

by brad＠heeltoe.com

>From: Liam Proven <lproven at gmail.com> >... >This is a new one on me. I don't know enough to judge, but it seems to >be more of a /de novo/ implementation than anything directly >compatible with a classic Symbolics or LSI Lisp Machine. > >http://www.aviduratas.de/lisp/lispmfpga/index.html Yes, it's a fun project but not related to any prior lispm hardware. On a similar note, I'm still plugging away on my MIT CADR fpga. It boots fine in simulation, but crashes on real FPGA hardware. It does show the debugger on a VGA screen with keyboard input, which is mildly interesting. You can even get emacs to run briefly. I don't know of any Symbolics compatible lispm-fpga work. I keep looking for a CAD files for the Ivory but no luck yet. -brad

14 years, 7 months

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Needed: Diskette for "Dissecting DOS: A Code-Level Look at the DOS Operating System"

by rich.cini＠verizon.net

Mike -- I believe I have this at home somewhere. Contact me off-list and I'll send it to you. ------Original Message------ From: Michael B. Brutman Sender: cctalk-bounces at classiccmp.org To: CCTalk ReplyTo: CCTalk Subject: Needed: Diskette for "Dissecting DOS: A Code-Level Look at the DOS Operating System" Sent: Nov 14, 2011 8:53 AM I purchased this new from Amazon with the expectation that there would be a diskette in it. Perhaps not readable, but still present. To my amazement there is no diskette at all and no provision for even holding one in the book despite the prominent "DISK Included" on the front cover. Rather than return it and try for a used one, does anybody have the diskette? I'd like a raw image of it, but even just a Zip of the files would be fine. On a slightly related note, I have enough older books like this where I'm thinking it's time to start an online archive. The books are still good without the disks, but the disks often have code that the book didn't bother to print. Thanks, Mike Sent from my Verizon Wireless BlackBerry

14 years, 7 months

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Needed: Diskette for "Dissecting DOS: A Code-Level Look at the DOS Operating System"

by mbbrutman-cctalk＠brutman.com

I purchased this new from Amazon with the expectation that there would be a diskette in it. Perhaps not readable, but still present. To my amazement there is no diskette at all and no provision for even holding one in the book despite the prominent "DISK Included" on the front cover. Rather than return it and try for a used one, does anybody have the diskette? I'd like a raw image of it, but even just a Zip of the files would be fine. On a slightly related note, I have enough older books like this where I'm thinking it's time to start an online archive. The books are still good without the disks, but the disks often have code that the book didn't bother to print. Thanks, Mike

14 years, 7 months

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A Lisp Machine on an FPGA

by lproven＠gmail.com

This is a new one on me. I don't know enough to judge, but it seems to be more of a /de novo/ implementation than anything directly compatible with a classic Symbolics or LSI Lisp Machine. http://www.aviduratas.de/lisp/lispmfpga/index.html -- Liam Proven ? Info & profile: http://www.google.com/profiles/lproven Email: lproven at cix.co.uk ? GMail/GoogleTalk/Orkut: lproven at gmail.com Tel: +44 20-8685-0498 ? Cell: +44 7939-087884 ? Fax: + 44 870-9151419 AIM/Yahoo/Skype: liamproven ? MSN: lproven at hotmail.com ? ICQ: 73187508

14 years, 7 months

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PDP11 time table

by gerhard.kreuzer＠liftoff.at

Hi folks, get some question here, so is somebody out there who can give a good answer (because he was part of the team at this time??) Citate starts here: Hi, found this website via your comment on Sytse's site. One remark on the PDP-11 history table: wasn't the 11/40 an earlier model than the 11/45? Regards, Hans Submitted By: Hans Vlems Thanks for helping With best regards Gerhard

14 years, 7 months

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Storage of LCD Monitors?

by healyzh＠aracnet.com

Are there any temperature concerns when storing LCD Monitors? I'm concerned as this winter looks like it will probably be very cold, and it could get below freezing in our garage. Zane -- | Zane H. Healy | UNIX Systems Administrator | | healyzh at aracnet.com | OpenVMS Enthusiast | | | Photographer | +----------------------------------+----------------------------+ | My flickr Photostream | | http://www.flickr.com/photos/33848088 at N03/ |

14 years, 7 months

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Futurama

by technobug＠comcast.net

It's Saturday afternoon and it is raining here in Arizona. So I'm sitting around inside sorting parts with the boob tube on. Futurama comes on (Season 2, Episode 4). The professor pulls out his new "F" ray and scans Bender (the robot) to find why he's sick and lo and behold he's running on a 6502! <http://www.watchcartoononline.com/futurama-episode-113-fry-and-the-slurm-fa…> @ 4 minutes - > CRC

14 years, 7 months

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