test-drb September 2016

test-drb@ccmp.vtda.org

162 participants
227 discussions

by jnc＠mercury.lcs.mit.edu

> From: Devin Davison > I am looking for a short program to key in to try and test the > functionality of the cpu. "BRANCH ." is always a good one - 0777. If that runs, much of the CPU is functional, and any errors found from there should be pretty easy to track down. > Is there anywhere aside from the DEC manuals I could go to get a quick > idea of how to operate the front panel? The manual is very in depth, > however i am looking for sort of a quick start guide to get started > pretty quickly. I'm assuming you have the 'Programmer's Front Console', the one with the 0-7 number keys, etc? If you have the simple one, instead, that uses a program in ROM to drive the console serial line, and most of the CPU has to be running to use that. The Programmer's Console is pretty simple. Key in the address, hit "LAD" (Load Address), and then you can read ("EXAM"), store ("DEP" - after entering the number you want deposit), or start the CPU running at that address (hold down "CNRTL" and "START"). Hitting "EXAM" multiple times examines successive locations - "DIS AD" will show you how far it has gotten. If the CPU is running ("RUN" light is on), pressing down "CNRTL" and "HLT/SS" will halt it. Load, deposit, etc don't work unless the CPU is halted. Noel

8 years, 3 months

Signetics PLS173 PLA fuse numbering?

by glen.slick＠gmail.com

A Signetics PLS173 PLA has a total of 2178 programmable fuses: (32 AND gates for logic terms plus 10 AND gates for control terms) times (24 true/complement inputs plus 20 true/complement inputs/outputs) = 1848 fuses (10 OR gates) times (32 AND gates logic term outputs) = 320 fuses 10 fuses for true/complement output selection For reference see the PLS173 FPLA Logic Diagram on page 5-70 (page 242 of the PDF) of the Signetics PLD Data Manual 1987 http://www.bitsavers.org/_dataBooks/1987_Signetics_pldData.pdf The question is for anyone here that knows: How are these fuses in the FPLA Logic Diagram numbered as they would be in a JEDEC fuse map file used to program a device, or when read back from a device? I can't find that information anywhere. If I read a PLS173 device into a JEDEC fuse map it should be trivial to generate the logic equations by hand if the fuse numbering is known, which is what I want to do.

8 years, 3 months

Free manuals...

by lbickley＠bickleywest.com

I'm cleaning out my library of manuals and books I no longer need and before I recycle these particular IBM manuals, I thought someone on cctalk might find them useful. They are free for the shipping and packaging cost - local pickup gets priority ;) 1) "RS/6000 Diagnostic Information for Multiple Bus Systems" (Version 5.100) 2) "RS/6000 Adapters, Devices and Cable Information for Multiple Bus Systems" 3) Large 8.5" X 11" "Systems Network Architecture, Reference Summary" (Updated to 2/4/86). Includes "IBM Synchronous Data Link Control General Information" manual. 4) 8.5" X 11: "Systems Network Architecture, Transaction Programmer's Reference Manual for LU Type 6.2" Cheers, Lyle -- 73 AF6WS Bickley Consulting West Inc. http://bickleywest.com "Black holes are where God is dividing by zero"

8 years, 3 months

Michael Holley

by david＠thecoolbears.org

I'm not sure that I'm comfortable asking this, but here goes.... I ran into the famous Michael Holley (www.swtpc.com) at VCF West and had a pleasant conversation. I've emailed him several times at the address on his web page, but haven't had a reply. I'm wondering if he ever hangs out on cctech and if not, if there is someone that knows of a different email and could let him know that I would like to chat with him.

8 years, 3 months

Looking for a MXV11 board (QBus)

by azd30＠telus.net

Hi, As per the subject, I'm wondering if anyone has a spare MXV11 that they would be willing to part with. It's going in 2x4 (H9281) enclosure, where I'm currently losing two slots to a mem card and a DLV11-J. I would prefer the -BF version, so I can run either my 11/23 or the 11/73 processor card in there, but the -A version will do in a pinch. Boot ROM's would also be nice, but not a hard requirement... Please let me know off-list. I am in the Pacific Northwest if that makes a difference to anyone... cheers -- alex

8 years, 3 months

ISO: VAXBI hardware

by derschjo＠gmail.com

Hi all -- I have a VAX 8250 I'm bringing up and I'd like to track down an Ethernet adapter, this would be the T1034 (DEBNT). There are a few on eBay, but none include the cabling and bulkhead, which would be nice to have. I'm also looking for a T1010 (BI to Unibus adapter), as the one in my system is shot (and given the lack of documentation, I doubt I'm going to be able to fix it). Also -- any suggestions for mass storage? I have a KDB50 (T1002, T1003 set), but SDI drives are getting harder to find. I assume VAXBI SCSI adapters are even more scarce than their Unibus counterparts.... Thanks as always, Josh

8 years, 3 months

DEC 3000 Model 400 Alpha Workstation

by rlloken＠telus.net

Gentlemen, I was rooting through the morgue this morning looking for a cable to revive my AlphaServer 4100 when I stumbled over my long moribund DEC 3000. This machine was retired because some of the memory failed and, although it is too large and heavy to ship, there are a lot of parts and accessories that may be of use including the strange little cable that had a connector block for the mouse and keyboard and an adaptor that I obtained from DEC which allows you to use a VGA monitor instead of the original Trinitron with its array of BNC cables. I also have an array of documentation and (good grief!) the original mouse. Anybody want any DEC 3000 parts? Or a couple of ES45 CPU cards? I have two those also. -- Richard Loken VE6BSV, Systems Programmer - VMS : "...underneath those Athabasca University : tuques we wear, our Athabasca, Alberta Canada : heads are naked!" ** rlloken at telus.net ** : - Arthur Black

8 years, 3 months

Third release of the HP 3000 Series III simulator

by jdbryan＠acm.org

The third release of the HP 3000 Series III simulator is now available from the Computer History Simulation Project (SIMH) site: https://github.com/simh/simh This release adds the cold dump facility. Entering the DUMP command simulates pressing the ENABLE and DUMP front panel buttons. The contents of main memory are written to an attached magnetic tape in a format suitable for analyzing with the DPAN4 program provided with MPE. The new SET CPU DUMPDEV and SET CPU DUMPCTL options specify the default device number and control byte for the dump. Also, the user may simulate a system power loss with the POWER FAIL command and resume powered operation with the POWER RESTORE command. The SET CPU ARS/NOARS command determines whether or not MPE automatically restarts when power is restored. The full set of new features is listed in the release notes that accompany the simulator source files. In addition, an updated HP 3000 Simulator User's Guide that covers the new commands is provided in Microsoft Word format with the source download and also as a PDF file at: http://alum.mit.edu/www/jdbryan/hp3000_doc.pdf The preconfigured MPE-V/R disc image available from Bitsavers: http://www.bitsavers.org/bits/HP/HP_3000/ ...was not changed for this release. -- Dave

8 years, 3 months

Hazeltine Esprit III manual

by aek＠bitsavers.org

Just noticed this. Did anyone on the list buy it? http://www.ebay.com/itm/221674855740

8 years, 3 months

DEC F-11 (Fonz) processor ceramic chip carriers (PDP-11) on eBay

by scott.l.baker＠gmail.com

http://www.ebay.com/itm/191974796676?ssPageName=STRK:MESELX:IT&_trksid=p398…

8 years, 3 months

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test-drb September 2016