test-drb

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101090 discussions

ELTRAN THE COMPILER ANY DOCS? (NOT THE SEMICONDUCTOR STUFF!)))

by couryhouse＠aol.com

Chuck! Many thanks! Update on? 422 UNIVAC? docs . .? some kind? ?people have mailed in? docs and? ?things? they have? found related to this? 422 UNIVAC ...? things are? shaping up! Many? thanks? ?to? all? these? folks- I? fear ever putting power to this? thing... so? may? parts to go? POP... I have a nice large? Variac.....? ?suggestions? Ed In a message dated 1/5/2019 11:18:00 AM US Mountain Standard Time, cctalk at classiccmp.org writes: Since it was a 53-year old high-school project, I doubt that you're going to find much on it.? However, see the post by Steve Schweda here: https://community.hpe.com/t5/Operating-System-OpenVMS/Left-shift-by-more-th… He may actually have some familiarity with ELTRAN and know where some documentation exists. --Chuck On 1/5/19 10:10 AM, Chuck Guzis via cctalk wrote: > Okay, I think I found the reference to it. > > It turns out that it was a high-school student's project entered in the > "Fourth Annual Computer Programming Contest for Grades 7 to 12'.? To quote:

7 years, 7 months

ELTRAN THE COMPILER ANY DOCS? (NOT THE SEMICONDUCTOR STUFF!)))

by couryhouse＠aol.com

(COME ON SOCRATES ...? DO YOUR? THING!) In a message dated 1/5/2019 1:49:38 AM US Mountain Standard Time, cctalk at classiccmp.org writes: no is compiler a small one only 2 do loops allowed...ed# Sent from AOL Mobile MailOn Friday, January 4, 2019 Chuck Guzis via cctalk <cclist at sydex.com; cctalk at classiccmp.org> wrote:On 1/4/19 8:42 PM, Fred Cisin via cctalk wrote:> Would be? interesting when you find it.> Not necessarily "tiny"> Remember WATFOR??? (very impressive!) I guesss not too many numerical methods types hwere, but ELTRAN is asubroutine in the EISPACK linear programming set.? Yes, it's all FORTRAN: >From the subroutine: cc? ? this subroutine is a translation of the algol procedure elmtrans,c? ? num. math. 16, 181-204(1970) by peters and wilkinson.c? ? handbook for auto. comp., vol.ii-linear algebra, 372-395(1971).cc? ? this subroutine accumulates the stabilized elementaryc? ? similarity transformations used in the reduction of ac? ? real general matrix to upper hessenberg form by? elmhes. --Chuck

7 years, 7 months

ELTRAN THE COMPILER ANY DOCS? (NOT THE SEMICONDUCTOR STUFF!)))

by couryhouse＠aol.com

no is compiler a small one only 2 do loops allowed...ed# Sent from AOL Mobile Mail On Friday, January 4, 2019 Chuck Guzis via cctalk <cclist at sydex.com; cctalk at classiccmp.org> wrote: On 1/4/19 8:42 PM, Fred Cisin via cctalk wrote: > Would be? interesting when you find it. > Not necessarily "tiny" > Remember WATFOR??? (very impressive!) I guesss not too many numerical methods types hwere, but ELTRAN is a subroutine in the EISPACK linear programming set.? Yes, it's all FORTRAN: >From the subroutine: c c? ? this subroutine is a translation of the algol procedure elmtrans, c? ? num. math. 16, 181-204(1970) by peters and wilkinson. c? ? handbook for auto. comp., vol.ii-linear algebra, 372-395(1971). c c? ? this subroutine accumulates the stabilized elementary c? ? similarity transformations used in the reduction of a c? ? real general matrix to upper hessenberg form by? elmhes. --Chuck

7 years, 7 months

PDP-11/45 RSTS/E boot problem

by jnc＠mercury.lcs.mit.edu

> From: Paul Koning >> On Dec 31, 2018, at 6:32 PM, Henk Gooijen via cctalk <cctalk at classiccmp.org> wrote: >> ... >> There are one or two bits in a register of the RK11 that have a >> different meaning/function, depending on the controller being a -C or >> -D. > If someone can point me to the description of the differences I should > be able to say what RSTS will do with them. AFAIK, the only difference (in programming terms) between the -C and -D is that the -D has dropped the maintainance register. Although I cheerfully admit I haven't sat down with -C and -D manuals and done a bit-by-bit compare. I just did that (I used the "RK11-C Moving Head Disk Drive Controller Manual", DEC-11-HRKA-D, and the 1976 "Peripherals Handbook"), and found in the following: In the RKDS: bit 7 has changed the definition slightly ("Drive Ready" to "R/W/S Ready"), but seems to be basically the same. In the RKCS, bit 9 is "Read/Write All" in the -C, and unused in the -D; bit 12 is "Maint" in the -C, unused in the -D. In other words, a -D driver should work just fine with a -C, IMO. Noel

7 years, 7 months

ELTRAN THE COMPILER ANY DOCS? (NOT THE SEMICONDUCTOR STUFF!)))

by couryhouse＠aol.com

ELTRAN THE COMPILER ANY DOCS? ANY ONE? USED IT? (NOT THE SEMICONDUCTOR STUFF!)) ED#

7 years, 7 months

Microcode, which is a no-go for modern designs

by pbirkel＠gmail.com

>-----Original Message----- >From: cctalk [mailto:cctalk-bounces at classiccmp.org] On Behalf Of Carlo Pisani via cctalk >Sent: Tuesday, January 01, 2019 5:35 PM >To: ben; General Discussion: On-Topic and Off-Topic Posts >Subject: Re: Motorola M88K books & user manuals (looking for) > >> I was never a fan of RISC architecture as does not fit the standard high >> level language model. Everybody wants a 1 pass compiler, thus the RISC >> model. If you are doing your own RISC model, you might consider a model >> that supports Effective addressing better since we have got the point >> where fetching the data is taking longer than processing it. > >yup. I am a 68k programmer so I know what you mean. >the 68k is more comfortable to be programmed in assembly, and even the >EA modes (especially in the 68020 and CPU32) help a lot. > >unfortunately, the 68K is very complex to be designed, and the first >68020 used microcode, which is a no-go for modern designs. > >... I'm curious as to why you make this claim that microcode is no-go in "modern" designs. Could you please elaborate on this point? I don't see why the alternative random control logic would be a better proposition. Thanks, paul

7 years, 7 months

music dec tapes? (paper)

by tdk.knight＠gmail.com

anyone seen these music tapes before i grabed this trays for the oddnes of the content of these tapes? also apears to have the software to play them? https://www.ebay.ca/itm/Lot-of-15-digital-decus-Paper-Tapes-w-Case/27362862… https://www.ebay.ca/itm/Lot-of-8-digital-decus-Paper-Tapes-w-Case/273628539… would this be some weird synthy type thing? control points for the sound boaerd used for automation on some fancy desk? or somthing els?

7 years, 7 months

SPACE WAR for PDP-11 - link issues

by mattislind＠gmail.com

So after some intensive transcribing work I finally got all files into source files ready for assembling using PAL11-S. Assembling under PAL11-S rooted out a bunch of errors and then when side by side comparing the output listing with the PDF I found a bunch of more errors. The next step involved linking and during the first run a number of errors surfaced again. On the last run I only had two undefined: $ICO and $ICI. It makes sense since these two are part of the FPMP-11 package and used for number conversion. However adding the FPMP-11 object as an extra input in the link does not resolve these two undefined symbols. Does anyone have a clue on how to get a proper link with FPMP-11 for these two symbols? Here is the repo with PDF files, source PAL files, LST files and OBJ files as generated by PAL11-S: https://github.com/MattisLind/SPACEWAR /Mattis

7 years, 7 months

Which DEC machine made use of th pre Flip-Chip board?

by jnc＠mercury.lcs.mit.edu

> From: Mattis Lind > I cannot figure out which early machine it comes from. They're called 'System Modules': http://gunkies.org/wiki/System_Module and they were used from the PDP-1 through (I think) the PDP-7; at least, this PDP-7 internals image: https://www.soemtron.org/images/jpgs/decimages/sn113robertjohnson85680004.j… seems to show System Modules at the top, and FLIP CHIPs at the bottom. (I'm pretty sure even the first PDP-8 - the 'straight 8' - uses only early FLIP CHIPs - transistorized ones.) The DEC brochure for it (P5141) is a little puzzling; it says (p. 2) that "INTEGRATED CIRCUITS are basic elements of the low cost, newly designed silicon FLIP CHIP modules used throughout PDP-7", but AFAIK, the first FLIP CHIPs (R-series, B-series, etc) were all transistors; the later M-series were the first ones to have ICs. Maybe this is some old meaning of "integrated circuits"? Noel

7 years, 7 months

wanted back issues IEEE ANNALS OF THE HISTORY OF COMPUTING bound or unbound... dtop us a line off list please.

by couryhouse＠aol.com

wanted back issues IEEE ANNALS OF THE HISTORY OF COMPUTING? bound or unbound... dtop us a line off list please.... ed#? SMECC Sent from AOL Mobile Mail

7 years, 7 months

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