test-drb

test-drb@ccmp.vtda.org

101090 discussions

by ggs＠shiresoft.com

Hi, I know it?s been a while (a long while) since I last posted about ordering new UA11 boards. I just placed an order for 25 boards. To get the best price I did a ?4 week turn? which means that I should be receiving the boards by the end of January. I?m only doing bare boards this time, so what you?ll get is a board and a set of printed documentation (which is also available at: http://www.shiresoft.com/downloads/docs/ua11/UA11%20Manual.pdf). I just looked at the documentation and the address and phone numbers are old (so don?t try and use them!). I?ll try and get the documentation updated with current information before I ship any boards. The cost will be less than what?s posted on the website, I won?t have exact numbers until I receive the boards however I expect to charge ~$100/ea + shipping. I?ll let everyone know when the boards arrive, but feel free to email me (off list please!) if you?d like to reserve one (or more!). Do not send any payment until I have boards in hand! Have a Merry Christmas (or whatever your preferred holiday this time of year is)! TTFN - Guy

10 years, 1 month

XY11 Manual, Anyone?

by mattislind＠gmail.com

I have in mind to connect a machine to an IBM 1627 (CALCOMP 565) plotter and then the XY11 which just arrive would fit nicely, I think. But I cannot seem to find any manual for the XY11. Anyone know of a manual? The board is rather simple so it should be possible to work out the details on how to interface it by hand but it would be nice to have the proper manual. Then for software I found a diagnostic, XXYAD0 that supposedly should draw a square and a rectangle. Anyone know of other drawing software that uses the XY11 /Mattis

10 years, 1 month

dumping Western Digital Microms (PDP-11, WD16, Pascal Microengine)

by spacewar＠gmail.com

The DEC LSI-11, Western Digital WD16 (as used in the Alpha Micro AM100), and Western Digital Pascal Microengine use variations of the same chipset, called CP1600 for the LSI-11 and WD16, and WD9000 for the Pacal Microengine. The chipset consists of a control chip, a data path chip, and two to four microcode ROMs, of 512 words of 22 bits each, known as "Microms". I built an apparatus on a breadboard to dump the contents of Microms, using a PIC and a quad gate driver to produce the four-phase 12V clock, three 74HCT163 four-bit counters and two 74HCT245 buffers to drive the address onto the microinstruction bus, and a 74HCT4050 and 74HCT04 to level shift the MOS phase 2 clock back to 5V and invert it, to enable the 74HCT245 buffers. Photos: https://www.flickr.com/photos/22368471 at N04/albums/72157662054690240 The apparatus cycles through the entire 2 kibiword address space continuously. An HP 16701A logic analyzer with 16557D state/timing card is attached to capture the addresses and data. Because the microinstruction bus is active low, the addresses are driven in reverse sequence, and the microinstructions captured on the logic analyzer are inverted. So far I have dumped the following LSI-11 Microms: 3010D, DEC P/N 23-001B5 (also designated CP1631-10) - addr 0x000-0x1ff 3007D, DEC P/N 23-002B5 (also designated CP1631-07) - addr 0x200-0x3ff So far I have dumped the following Pascal Microengine Microms: WD2171-10 - addr 0x000-0x1ff WD2171-12 - addr 0x200-0x3ff WD2171-13 - addr 0x400-0x5ff WD2171-14 - addr 0x000-0x1ff WD2171-15 - addr 0x200-0x3ff WD2171-17 - addr 0x400-0x5ff WD2171-18 - addr 0x400-0x5ff There exists at least one other Pascal Microengine Microm which I don't have, the WD2171-16. I expect that it probably occupies addr 0x400-0x5ff. I have not yet dumped the WD16 Microms as I do not have an AM100 CPU board at hand. My next challenge is exporting the data from the 16701A to anything else. The 16701A used to work fine on my Ethernet, but for mysterious reasons it now claims that the network can't be accessed, despite that plugging a laptop into the same Ethernet cable works fine. I'll need to write a small Python script to post-process the output, for use with my disassembler (also in Python). Note that dumping the Microm contents is only part of the problem; the control chip also contains PLAs that can force microcode jumps under various conditions despite there being no corresponding jump instruction in the Microms. This is used for macroinstruction decode, and possibly for other purposes.

10 years, 1 month

dumping Western Digital Microms (PDP-11, WD16, Pascal Microengine)

by jnc＠mercury.lcs.mit.edu

> From: Eric Smith > The control chip and data chip are not Microms, and MUST be plugged > into the correct socket. Yeah, as you saw, I eventually figured that out. In part, along with the bad diagram, I was thrown by a combo of the fact that i) the DEC part numbers for the control chip started with 23- (which seems to be a ROM part indicator), unlike the data chip, which as a 21-1; and second, the control chip is 23-002C4/23-003C4, which was so close to uROM numbers like 23-002B5 and 23-003B3, it sounded like they were all uROM parts. > There are a number of variants. Thanks for all the additional data. I'll add it all to the LSI-11 page on the he Computer History Wiki (seems as good a place as any to accumulate it). Noel

10 years, 1 month

Has Anyone Written PDP-8 .XOR. Code Using the MQ Register (Without the EAE)?

by bobvines00＠gmail.com

Has anyone written PDP-8 code for .XOR. that uses the MQ Register (when the EAE isn't available)? If so, can you share the source code and/or the algorithm? Thanks, Bob

10 years, 1 month

XY11 Manual, Anyone?

by COURYHOUSE＠aol.com

resending with corrections! it appears the pen kit for our plotter got LIFTED (aka stolen, ripped off... etc... bummer..) before we had it glassed in living the glassed in display a areas if anyone has a calcomp box with the solenoid and pens that is extra to their needs please let us know In a message dated 12/22/2015 9:31:22 P.M. US Mountain Standard Time, COURYHOUSE at aol.com writes: I had the large ibm calcomp plotter if big wide one we have the same ... it is in the hp display case at smecc museum there was a fortran graphics text book we had adn I had gotten with a HP 3000 and it had a interface board ( parallel interface?? too many years) I made it plot squares etc .. as I remember the hp intrinsics may have had some support for this.. once I did that i put it aside and went back to playing with the HP multi-pen HP plotters we sold back them at Computer Exchange Inc. In a message dated 12/22/2015 3:22:01 P.M. US Mountain Standard Time, steven at malikoff.com writes: ---------------------------- Original Message ---------------------------- Subject: XY11 Manual, Anyone? From: "Mattis Lind" <mattislind at gmail.com> Date: Wed, December 23, 2015 2:53 am To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> -------------------------------------------------------------------------- > I have in mind to connect a machine to an IBM 1627 (CALCOMP 565) plotter > and then the XY11 which just arrive would fit nicely, I think. > > But I cannot seem to find any manual for the XY11. Anyone know of a manual? > > The board is rather simple so it should be possible to work out the details > on how to interface it by hand but it would be nice to have the proper > manual. > > Then for software I found a diagnostic, XXYAD0 that supposedly should draw > a square and a rectangle. > > Anyone know of other drawing software that uses the XY11 > > /Mattis The book 'The Minicomputer in the Laboratory' by James W Cooper covers using an X-Y plotter with an 11/05, and has assembly listings and a whole bunch of related stuff about scientific plotting. Also a lot of info on using the LPS-11 too. There are plenty of copies out there and quite cheap too. It's an excellent book and could be of use to you. Steve.

10 years, 1 month

ST-251 MLC-1

by lehmann＠ans-netz.de

Hi, I knew ST-251-0, ST-251-1 drives for ST506. Some time ago I've got a ST-251 labled "MLC-1". Does someone knows what the MLC stands for? What is different to the other ST-251 variants? It looks like a regular ST506 drive. Oliver

10 years, 1 month

Anyone collect Fortune 32/16 systems?

by jwsmail＠jwsss.com

There is one quite inexpensive on Ebay right now. Looks to be a match for the system unit at the CHM as well. Maybe they need a spare. I don't know if they want parts machines or not, but for the price it is almost tempting to pick it up. http://www.ebay.com/itm/321399704868 Hope Christmas brings everyone a lot of new toys. (as in old ones). Thanks jim

10 years, 1 month

Odd disk image format... .552?

by wrm＠dW.co.za

> >Recently found some long-lost images of 5 1/4" floppies that were sent >to me... 10-15 years ago. Here's one of them: > >http://www.corestore.org/RP06.552 Looks like a straight image for a 1.44 what we call "stiffy". The 522 is the version of RP06. Google leads me to http://www.corestore.org/rp12.htm so you already know what it's for :-) W

10 years, 1 month

XY11 Manual, Anyone?

by COURYHOUSE＠aol.com

yes I can... it got LIFTED! Ripped Off! Stolen! Bummer eh? In a message dated 12/23/2015 9:43:59 A.M. US Mountain Standard Time, cisin at xenosoft.com writes: On Wed, 23 Dec 2015, COURYHOUSE at aol.com wrote: > it appears the pen kit for our plotter got listed before we had > it glassed in living the glassed in display a areas Could you rephrase that?

10 years, 1 month

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