test-drb January 2017

test-drb@ccmp.vtda.org

198 participants
283 discussions

by hilpert＠cs.ubc.ca

On 2017-Jan-10, at 5:03 AM, Noel Chiappa wrote: >> From: Brent Hilpert >>>>> One assembler doc uses a prefix of "&o" >> >> So the answer is, by modern expectations the old standard would be >> ambiguous or misleading. > > Well, the ideas of 'assembler' and 'standard' don't really go together in my > mind... :-) > > But seriously, I don't know how many different PDP-11 assemblers there were, > but the two _main_ ones (DEC's, and Unix's) both use the same numeric > convention (although they differed in other ways, probably because of the > CTSS/Multics erase character convention): a sequence of digits is an octal > number, unless there's a trailing '.', in which case it's decimal. > > (Well, technically, DEC had PAL-11 and MACRO-11, but PAL-11 was basically a > subset of MACRO-11, and used the same number syntax.) > > I've never heard of that '&o' bizzaro-stuff - where did you find that? > > Noel This one: http://mdfs.net/Software/PDP11/Assembler/AsmPDP.txt Reading more closely, the encoding has some relation back to BBC BASIC. I was beginning to wonder if it was some html character-encoding screwup.

8 years, 5 months

pdp-11 assembly standards

by hilpert＠cs.ubc.ca

8 years, 5 months

What's the rarest or most unusual computer-related item do you own?

by COURYHOUSE＠aol.com

That is amazing Ian ! - Photo? Wonder what the ticket was for that back in its new day... Ed# In a message dated 1/10/2017 4:27:44 P.M. US Mountain Standard Time, isking at uw.edu writes: I'd have to say my VAX 6000-600. It has six processors, and therefore is alternatively known as the VAX 6660 - the Devil's VAX. :-) I've not been able to boot it because I don't have three-phase power to my house. However, I've been informed that the H405 can be rewired to run correctly off dryer power, which I do have. That's one of the (many) projects on my post-dissertation list. With six processors and a half-gigabyte of RAM, I've been told this is probably the most built-out VAX 6600 remaining. -- Ian -- Ian S. King, MSIS, MSCS, Ph.D. Candidate The Information School <http://ischool.uw.edu> Dissertation: "Why the Conversation Mattered: Constructing a Sociotechnical Narrative Through a Design Lens Archivist, Voices From the Rwanda Tribunal <http://tribunalvoices.org> Value Sensitive Design Research Lab <http://vsdesign.org> University of Washington There is an old Vulcan saying: "Only Nixon could go to China."

8 years, 5 months

What's the rarest or most unusual computer-related item do you own?

by COURYHOUSE＠aol.com

DIGITAL TRAINERS TUBE TYPE - IBM Digital trainer - uses the earliest of IBM plug in tube things that were in their commercial systytems http://www.smecc.org/video/logic_5.gif IF ANYONE CAN SHED LIGHT ON THIS IT WOULD BE FANTASTIC! SOLID STATE - DEC COMPUTER LAB with the pdp-8 I toggles... not RARE but is cool! RELAY - - MINIVAC 601 COMPUTERS for tube computer - - our sage stuff also. for solid state - some of our GE Erma material. for mechanical analog computer -- some kid of weird thing with gears shafts , bellows and I think this weird thing runs off compressed air. details pending for electronic analog computer - Syston Donner with Tubes in it not that RARE but we are proud of it! for calculators - W.W. Salisbury's HP 35 that he used for Spiral Fusion Calculations ACTIVE DEVICES Tubes- - single Plate early Deforest Spherical Audion Transistors - - experimental and Pre-production prototypes ALL Bell Transistors DIGITAL TRAINERS IBM Digital trainer - uses the earliest of IBM plug in tube things that were in their commercial systems http://www.smecc.org/video/logic_5.gif IF ANYONE CAN SHED LIGHT ON THIS IT WOULD BE FANTASTIC! Comes in a fitted wood case with lots of plugable modules with tubes and other parts. But we love all the stuff! Ed# _www.smecc.org_ (http://www.smecc.org) In a message dated 1/10/2017 4:42:21 P.M. US Mountain Standard Time, mloewen at cpumagic.scol.pa.us writes: On Tue, 10 Jan 2017, Andy Cloud wrote: > I thought this would be an interesting question to ask around - What's the > rarest or most unusual computer-related item do you own? 64Kbit core plane from an AN/FSQ-7 (SAGE) computer: http://q7.neurotica.com/Oldtech/SAGE/Coreplane-1L.jpg ...along with other Q7 parts: http://q7.neurotica.com/Oldtech/SAGE/ Mike Loewen mloewen at cpumagic.scol.pa.us Old Technology http://q7.neurotica.com/Oldtech/

8 years, 5 months

Boot Loader for 3P+S on IMSAI

by wheagy＠gmail.com

Took a little digging but I found the thread where you were talking about port 20/21. I was able to configure the 3P+S card and run the test from the solivant site successfully, but I'm not able to upload basic. I have a couple more things to try, including setting a small upload delay as Bill suggests on his page. http://www.vintagecomputer.net/browse_thread.cfm?id=318 However, I'm thinking that I may still have a configuration issue on the 3P+S card. But I think I'm getting close. Win -- >The manual pretty much has the exact config for that port 20 is all you >have to remember >Bill Degnan >twitter: billdeg >vintagecomputer.net >On Jan 6, 2017 7:41 PM, "Win Heagy" <wheagy at gmail.com> wrote: > I have an IMSAI that I am restoring. The basics appear to be working > (front panel, CPU and RAM cards). I have a Processor Tech, 3P+S card > that is next on the list for testing. I have the manual, but the card > was not configured for RS-232...not sure what it was configured for > but it doesn't match anything in the manual. I plan to reconfigure it > for RS-232. I'm trying to locate boot loader code for that board to > allow serial uploading of files from a PC to the IMSAI? I have boot > loader code for a 2SIO board on an Altair that I restored awhile back, > and would like to find something similar for the 3P+S. I want to be > able to toggle in a boot loader routine and then initiate an upload > from the PC to IMSAI -- something similar to this > https://www.youtube.com/watch?v=YwC1T9oLK1U&t=212s > (at 1:10s in) but with a 3P+S board on an IMSAI. > > Also, a picture of your RS-232 configured card and wiring of the edge > connectors would be helpful to make sure I get things right. Any help > is appreciated.

8 years, 5 months

Female Computer

by rickb＠bensene.com

Ben Wrote: > > Where are the Female Computers? > Hal >To which Dave W. replied: >Here they were ... >http://farm4.static.flickr.com/3311/3214242023_ca5f2425a2_o.jpg And, to this I say - BRILLIANT! These ladies were indeed called computers back in those days! -Rick

8 years, 5 months

Compaq C series 2010c - aka series 2930a posters & Point of sale stuff needed

by COURYHOUSE＠aol.com

Compaq C series 2010c - aka series 2930a posters & Point of sale stuff needed We were given one - apparently not used in box the tab for the what I assume is the config battery next to the main battery compartment never even had its white paper pull tab pulled out to stat the battery up. So anyway want to get other marketing stuff etc to help embellish a display at SMECC project. thanks ed# _www.smecc.org_ (http://www.smecc.org)

8 years, 5 months

OT: Female Computer RE: Contacting Jay West

by dave.g4ugm＠gmail.com

Here they were ... http://farm4.static.flickr.com/3311/3214242023_ca5f2425a2_o.jpg Dave > -----Original Message----- > From: cctalk [mailto:cctalk-bounces at classiccmp.org] On Behalf Of ben > Sent: 10 January 2017 06:50 > To: cctalk at classiccmp.org > Subject: Re: Contacting Jay West > > On 1/9/2017 3:13 PM, geneb wrote: > > On Mon, 9 Jan 2017, Rob Jarratt wrote: > > > >> > >> No HP-2000 problem, just wasn't HP-2000 sure if I had sent it to the > >> right place HP-2000. > >> > > "Meet single HP-2000 in your area!" > > > > g. > > > > Where are the Female Computers? > Hal

8 years, 5 months

pdp-11 assembly standards

by jnc＠mercury.lcs.mit.edu

> From: Phil Budne > I've always assumed the P in PAL was for paper tape. > The Wikipedia artile for PDP-8 says that PAL-8 assembled from paper > tape into memory, so the A and L could have been for Assembler and > Loader. I have a number of different versions of the "PDP-11 Paper Tape Software" manual, and the earliest one (DEC-11-GGPB-D, March '71) turns out to be for PAL-11A, and it says it stands for "Program Assembly Language for the PDP-11's Absolute Assembler" (pg. 3-1). Amusing factoid: the manual says it takes about 45 minutes to re-assemble PAL-11A from the source tape, and punch a new binary tape (this is using the HSRP). > ISTR PAL-11A was also an "absolute" assembler (did not output REL > files), but there was also a PAL-11R. Yup. PAL-11A took an input an ASCII tape with the program, and produced as output "an absolute binary tape" (pg. 3-23). A later version of the 'Paper Tape Software' manual (DEC-11-ASDB-D, May '71) covers PAL11-R (although it does not, alas, decribe the relocatable output format in detail - although I think it's documented elsewhere), and also Link-11 and Libr-11. PAL11-R require DOS. Noel

8 years, 5 months

pdp-11 assembly standards

by jnc＠mercury.lcs.mit.edu

> From: Paul Koning > Is that the Unix assembler convention? Yup. From "Unix Assembler Reference Manual" (by DMR; no date, but the one I'm looking at came with V6): "An octal constant consists of a sequence of digits ... A decimal constant consists of a sequence of digits terminated by a decimal point '.'." > It certainly isn't the one used by the GNU assemblers, which are modeled > after the old Unix syntax. Except when they gratuitously change things. Noel

8 years, 5 months

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test-drb January 2017