Article 4182 of alt.sys.pdp10: Path: news3.best.com!news1.best.com!nntprelay.mathworks.com!europa.clark.net!206.55.3.15!news.clark.net!not-for-mail From: gagner@clark.net (Philip Gagner) Newsgroups: alt.sys.pdp10 Subject: Re: KL Console Commands Date: Wed, 07 Oct 1998 17:31:00 GMT Organization: TWLG Lines: 32 Message-ID: <361ba313.5952698@news.clark.net> References: <3613e9a8.18494117@news.clark.net> <6uvli1$o2j$1@strato.ultra.net> <3615172c.19558816@news.clark.net> <36149B71.237C@s054.aone.net.au> <361b6174.71109341@news.clark.net> Reply-To: gagner@clark.net NNTP-Posting-Host: gagner-ppp.clark.net Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Newsreader: Forte Agent 1.5/32.451 Xref: news3.best.com alt.sys.pdp10:4182 Daniel Seagraves wrote: >> One might, I suppose, want to implement console TTY, but it would be >> easier to emulate a DC-10 and remap the console functions. > >What's a DC-10? I have DATAO TTY working... > The DC-10 was the old, ancient, and best of all simple, terminal controller for PDP-10s. It came out around the same time as the KA-10. It supported multiple serial terminals. You're probably right that the I/O instruction was conventionally DATAO TTY, but I vaguely remember it as conventionally DATAO CON, for DATAO Console. 'course it's all in the assignments, and was a matter of taste. > >I'm not going to limit it to ITS - I'm going to try to emulate enough to >make TOPS-20 work. Speaking of which, does anyone have a diskimage? This means you're really going to implement all the page-fault stuff right? Wow! As I recall, TOPS-20 was a little sensitive to page fault timings. I'm probably wrong about this, but as I recall ITS ran on the modified page controller that MIT used--would it ever run on a vanilla KL? I vaguely remember an effort to make it do that, but I never heard whether anyone got it working. > >Daniel Seagraves | I'm an International Clandestine Arms Dealer! >#!/bin/perl -sp0777i$/=unpack('H*',$_);$_=`echo 16dio\U$k"SK$/SM$n\EsN0p[lN*1 >lK[d2%Sa2/d0$^Ixp"|dc`;s/\W//g;$_=pack('H*',/((..)*)$/) >What is this? See http://www.dcs.ex.ac.uk/~aba/rsa | 36 BITS 4EVER! > Article 4185 of alt.sys.pdp10: Path: news3.best.com!news1.best.com!nntprelay.mathworks.com!news.idt.net!nntp.farm.idt.net!news From: "Chris Ward" Newsgroups: alt.sys.pdp10 Subject: Re: KL Console Commands Date: Wed, 7 Oct 1998 15:40:05 -0400 Organization: IDT (Best News In The World) Lines: 19 Message-ID: <6vgg60$1gu@nnrp3.farm.idt.net> References: <3613e9a8.18494117@news.clark.net> <6uvli1$o2j$1@strato.ultra.net> <3615172c.19558816@news.clark.net> <36149B71.237C@s054.aone.net.au> <361b6174.71109341@news.clark.net> <361ba313.5952698@news.clark.net> NNTP-Posting-Host: ppp-29.ts-5-bay.hck.idt.net X-Newsreader: Microsoft Outlook Express 4.72.3115.0 X-MimeOLE: Produced By Microsoft MimeOLE V4.72.3110.3 Xref: news3.best.com alt.sys.pdp10:4185 Daniel Seagraves wrote in message ... >On Wed, 7 Oct 1998, Philip Gagner wrote: > >> The DC-10 was the old, ancient, and best of all simple, terminal >> controller for PDP-10s. It came out around the same time as the KA-10. >> It supported multiple serial terminals. You're probably right that the >> I/O instruction was conventionally DATAO TTY, but I vaguely remember >> it as conventionally DATAO CON, for DATAO Console. 'course it's all in >> the assignments, and was a matter of taste. The terminal controller for the PDP-10 that I remember was actually a PDP-8/I (I think) with 32K of 12 bit words, and it was described to me as the predecessor of the UART, that is, it read each bit and assembled a seven (or eight or whatever) bit byte by sensing the start bit, the data bits, the parity, the stop and the rest. It handled 30 or more 10CPS terminals (110 baud, 2 stop bits) and 5 or so 300 bps (High Speed) terminals. Article 4186 of alt.sys.pdp10: Path: news3.best.com!news1.best.com!nntprelay.mathworks.com!howland.erols.net!newshub2.home.com!newshub1.home.com!news.home.com!newshub1-work.home.com!void.agames.com!albaugh From: albaugh@agames.com (Mike Albaugh) Newsgroups: alt.sys.pdp10 Subject: Re: KL Console Commands Date: 7 Oct 1998 20:27:40 GMT Organization: Atari Games Corporation Lines: 29 Message-ID: <6vgirs$3hr$1@void.agames.com> References: <361ba313.5952698@news.clark.net> <6vgg60$1gu@nnrp3.farm.idt.net> NNTP-Posting-Host: java.agames.com X-Newsreader: TIN [version 1.2 PL2] Xref: news3.best.com alt.sys.pdp10:4186 Chris Ward (ccw@idt.net) wrote: : The terminal controller for the PDP-10 that I remember was actually a : PDP-8/I (I think) with 32K of 12 bit words, and it was described to me as : the predecessor of the UART, Kinda doubtful, IMHO, that last bit. Although I well remember the 8/I used as a "terminal concentrator" via bit-boffing software, I also well remember UARTs made out of three "System Modules" (tm) each, programmed very much like (sane) UARTS of today. I would be _very_ surprised to hear that a bit-boffing 8/I (made of TTL ?) preceded these system-modules, the basic building blocks of the PDP-1, -4, -5, and -6. : that is, it read each bit and assembled a seven : (or eight or whatever) bit byte by sensing the start bit, the data bits, the : parity, the stop and the rest. It handled 30 or more 10CPS terminals (110 : baud, 2 stop bits) and 5 or so 300 bps (High Speed) terminals. Software UARTS are fun. My first was on a machine with vacuum tubes and drum main-memory, but that post-dated my use of mechanical "UARTS" (with both "pulling" and "holding" magnets, for all you other grey-beards :-) Apologies for the distinctly thin veneer of -10 content. Mine was a -6 :-) Mike | albaugh@agames.com, speaking only for myself Article 4190 of alt.sys.pdp10: Path: news3.best.com!news1.best.com!nntprelay.mathworks.com!europa.clark.net!206.55.3.15!news.clark.net!not-for-mail From: gagner@clark.net (Philip Gagner) Newsgroups: alt.sys.pdp10 Subject: Re: KL Console Commands Date: Wed, 07 Oct 1998 21:48:11 GMT Organization: TWLG Lines: 37 Message-ID: <361be09f.4444373@news.clark.net> References: <3613e9a8.18494117@news.clark.net> <6uvli1$o2j$1@strato.ultra.net> <3615172c.19558816@news.clark.net> <36149B71.237C@s054.aone.net.au> <361b6174.71109341@news.clark.net> <361ba313.5952698@news.clark.net> <6vgg60$1gu@nnrp3.farm.idt.net> Reply-To: gagner@clark.net NNTP-Posting-Host: gagner-ppp.clark.net Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Newsreader: Forte Agent 1.5/32.451 Xref: news3.best.com alt.sys.pdp10:4190 "Chris Ward" wrote: > >Daniel Seagraves wrote in message ... >>On Wed, 7 Oct 1998, Philip Gagner wrote: >> >>> The DC-10 was the old, ancient, and best of all simple, terminal >>> controller for PDP-10s. It came out around the same time as the KA-10. >>> It supported multiple serial terminals. You're probably right that the >>> I/O instruction was conventionally DATAO TTY, but I vaguely remember >>> it as conventionally DATAO CON, for DATAO Console. 'course it's all in >>> the assignments, and was a matter of taste. > >The terminal controller for the PDP-10 that I remember was actually a >PDP-8/I (I think) with 32K of 12 bit words, and it was described to me as >the predecessor of the UART, that is, it read each bit and assembled a seven >(or eight or whatever) bit byte by sensing the start bit, the data bits, the >parity, the stop and the rest. It handled 30 or more 10CPS terminals (110 >baud, 2 stop bits) and 5 or so 300 bps (High Speed) terminals. > This was a device variously named, but generally called a DC72. It was a remote terminal controller (although it could be connected over a local interface--indeed at least one local controller HAD to be on an interface. I'm probably wrong, but I think the hardware box that connected the local FE to the -10 was called a something like a DL10 (or maybe the DL10 was only used for -11 FE's--in which case I don't recall waht the box was). The PDP8/I was MUCH later, and it was a general purpose computer (a PDP-8 in fact) which sat at the end of a network (see above). You could hook several terminals (I think 8 was pretty much the max) to it, as well as a remote lineprinter and a remote card reader. Also, it could handle speeds much higher than 30 CPS. It was designed by DAS (Digital Advanced Systems) and programmed by several people, notably Eric Peabody. Eventually it got superceded by the DNx series of PDP-11 based front ends. Article 4202 of alt.sys.pdp10: Path: news3.best.com!news1.best.com!news.maxwell.syr.edu!newsfeed.cwix.com!207.241.0.194!news.wwa.com!not-for-mail From: jeverett@wwa.DEFEAT.UCE.BOTS.com (John Everett) Newsgroups: alt.sys.pdp10 Subject: Re: KL Console Commands Date: 8 Oct 1998 13:20:19 GMT Organization: Everett Associates Lines: 23 Message-ID: <6vie6j$jk4$1@hirame.wwa.com> References: <3613e9a8.18494117@news.clark.net> <6uvli1$o2j$1@strato.ultra.net> <3615172c.19558816@news.clark.net> <36149B71.237C@s054.aone.net.au> <361b6174.71109341@news.clark.net> <361ba313.5952698@news.clark.net> <6vgg60$1gu@nnrp3.farm.idt.net> NNTP-Posting-Host: poolf7-033.wwa.com Mime-Version: 1.0 Content-Type: Text/Plain; charset=US-ASCII X-Newsreader: WinVN 0.99.8 (x86 32bit) Xref: news3.best.com alt.sys.pdp10:4202 In article <6vgg60$1gu@nnrp3.farm.idt.net>, ccw@idt.net says... > >The terminal controller for the PDP-10 that I remember was actually a >PDP-8/I (I think) with 32K of 12 bit words, and it was described to me as >the predecessor of the UART, that is, it read each bit and assembled a seven >(or eight or whatever) bit byte by sensing the start bit, the data bits, the >parity, the stop and the rest. It handled 30 or more 10CPS terminals (110 >baud, 2 stop bits) and 5 or so 300 bps (High Speed) terminals. The bit-banger being described above was called the 680, at least on the PDP-8. Back before I joined the PDP-10 Monitor Group I co-wrote (with Don Witcraft) a little OS called TSS-8. I was responsible for (among other things) the TTY support and had to get intimately familiar with the little beast. I seem to recall on the 8/I there was a 680I which differed from the 680 in bit sampling rate. I think the 680 sampled 8 times per bit, while the 680I only sampled 5 times. But then again that was a long time ago. -- jeverett@wwa.DEFEAT.UCE.BOTS.com (John Everett) http://www.wwa.com/~jeverett ^^^^^^^^^^^^^^^ Things have gotten so bad I feel the need to disguise my email address. And I don't like this explanation because I just hate long signatures. Article 2863 of alt.sys.pdp10: Path: nntp1.ba.best.com!news1.best.com!newshub.sdsu.edu!128.230.129.112!news-spur1.maxwell.syr.edu!news.maxwell.syr.edu!newsfeed.frii.net!easynews!uunet!dfw.uu.net!ffx.uu.net!spool0.news.uu.net!reader1.news.uu.net!not-for-mail From: X@Y.Z.net (Jynx) Newsgroups: alt.sys.pdp10,alt.folklore.computers Subject: Re: restoring tape readers (Was: New Tape Container format) References: <4ub43tskou7ev3slch65fvp65mju167q2c@4ax.com> <90u806$9iu$1@spies.com> <3A46481E.7515106F@shrimp.osfn.org> <9rhi4t4lj4e87lcqdsud79t862diuterqm@4ax.com> Reply-To: If You Reply Message-ID: User-Agent: slrn/0.9.6.2 (Linux) Date: 27 Dec 2000 17:45:49 GMT Lines: 30 NNTP-Posting-Host: 63.105.232.12 X-Trace: reader1.news.uu.net 977939149 23818 63.105.232.12 Xref: nntp1.ba.best.com alt.sys.pdp10:2863 alt.folklore.computers:13547 On Wed, 27 Dec 2000 12:45:18 +1100, Lionel scribbled: >Word has it that on Sun, 24 Dec 2000 14:01:50 -0500, in this august >forum, Michael Umbricht said: > >>Are there any sources for spare parts, or ways to repair them? > >For commercial repair jobs, many roller manufacturers can recondition or >make replacements for old & obscure rollers. Try looking under 'rollers' >or 'rubber' in your local yellow pages phone book. If you can't find a >suitable shop, or they're too expensive, you could try sanding down the >surface of the roller, then coating it lightly with silicon rubber >compound, then planing it down until smoooth, after it's cured. >('Silastic' is a popular brand name over here, I have no idea if that >brand name is used in the States.) In a parallel universe I once ran a small office equipment repair business. I used a product called "Fedron" from the Federal Mining and Manufacturing Company., 288 12th Ave., Roselle, N.J. 07203. I used it to treat Very Olde Typewrite platens. Bear in mind -- the rubber/neoprene/what-ever of the roller/capstan/ what-ever is irreversibly changed. This treatment can make it *somewhat* better. But, it'll never be as good as it was on Day One. HTH, Jonesy -- Marvin L Jones | jonz | W3DHJ | OS/2 Gunnison, Colorado | @ | Jonesy | linux __ 7,703' -- 2,345m | frontier.net | DM68mn SK