HECnet

hecnet@lists.dfupdate.se

1 participants
15560 discussions

by bygg＠cafax.se

> Isn't the documentation wrong, since it says 2621? ... copy/paste/transcription error on my part. The file clearly says 2021. Copied sort of by hand from a .pdf file... > Either way, I believe this field was expanded to be interpreted as > unsigned later than your code and documentation, meaning it will work a > while longer. However, I doubt that the TOPS-10 code have been updated > for that. Something for you to do? As I said, the text indicates that the (monitor) code stops working in 2021, but the code does in fact allow one more bit, no change needed here. The thing to wonder about is a piece of (ehum) software called NML. Written in the wonderful language BLISS. (sarcasm) > There is a similar issue with FAL, where the date field was also > extended to be unsigned. RSX only got these updated in 1999 in the code. > I'm sure VMS also have this. But for other OSes, I have no idea. Time for some experimentation. > Johnny --Johnny

8 years, 11 months

Tunnels: update my IP (again)

by b4＠gewt.net

Okay, Now it's static so long as I stop switching routers...;) 50.131.218.138 is now handled by a 7301. -- Cory Smelosky http://gewt.net Personal stuff http://gimme-sympathy.org Projects

8 years, 11 months

Future problems?

by bygg＠cafax.se

When browsing the Tops-10 sources I stumbled onto this (d36com.mac): NMXTIM: IFN FTOPS10,< MOVE T1,DATE## ;GET CURRENT UDT (IN DAYS,,FRACTION) MOVE T2,TIME## ;GET CURRENT TIME (IN JIFFIES SINCE MIDNIGHT) LSH T1,-^D17 ;TRUNCATE TO NUMBER OF HALF DAYS. SUBI T1,124210_1 ;CONVERT DAYS SINCE 1858 TO DAYS SINCE 1977 MOVE T3,[^D60*^D60*^D12] IMUL T3,TICSEC## ;SECONDS SINCE HALF-DAY TRNE T1,1 ;IS THIS THE SECOND HALF OF A DAY? SUB T2,T3 ;YES, RECORD SECONDS SINCE HALF-DAY IDIV T2,TICSEC## ;CONVERT JIFFIES INTO SECONDS. IMULI T3,^D1000 ;CONVERT TO NUMBER OF MILLISECONDS*TICSEC IDIV T3,TICSEC## ;CONVERT TO NUMBER OF MILLISECONDS. SKIPL T2 ;MAKE SURE WE HAVE A POSITIVE NUMBER OF SECONDS TDNE T1,[XWD -1,600000] ;MAKE SURE NO DATE OVERFLOW BUG.(HLT,COM911,D36COM,SOFT,<The date is past 9 November 2021>,,< Cause: The 2 byte julian half-day field in an event message is limited to 9 november 2021. The routine above has calculated the julian half-day, and has found that it overflowed. I doubt very much that the date itself has really gone past 2021. Probably someone smashed an AC or the routine to get the time from the monitor is returning junk. >) RET >;END IFN FTOPS10 This made me search for some documentation, and I found aa-k181a-tk which said, amongst other things: EVENT TIME Is the source node date and time of event processing. Consists of: +----------+--------+-------------+ ! JULIAN ! SECOND ! MILLISECOND ! ! HALF DAY ! ! ! +----------+--------+-------------+ where: JULIAN HALF DAY (2) : B = Number of half days since 1 Jan 1977 and before 9 Nov 2621 (0-32767). For example, the morning of Jan 1, 1977 is 0. SECOND (2) : B = Second within current half day (0-43199). MILLISECOND (2) : B = Millisecond within current second (0-999). If not supported, high order bit is set, remainder are clear, and field is not printed when formatted for output. Some observations/questions: * The code in Tops-10 actually checks for the half day value beeing not more than 16 bits, i.e. it will not trigger until 2066. This means that I will consinder it a typical case of SEP when it does. * I have no idea what will happen when the date goes past 9-Nov-2021, i.e. when the sixteen bit field gets the sign bit set and possibly some software somewhere goes belly up. Maybe we should try to do a controlled test? * Will this be/become a problem? What to do about it? --Johnny

8 years, 11 months

New system online

by r3boot＠r3blog.nl

Hi All, After some effort, I got an PDP-11/93 (simh) online running RSX-11M+ 4.6 bl 87. It is reachable as ROJIN (1.542) and I've configured a guest account on this box if anyone is interested in nosing around on this sytem. Do note, I just have about 2 weeks of experience with rsx, so be gentle with me :) Kind Regards, Lex van Roon -- LRO-RIPE | 570DE0BE | 9BF5 922E AF87 8584 E9CA C3AD C508 39A9 570D E0BE

8 years, 11 months

Sun LSA 800 compatible with DEC 3000

by mholmes10＠hotmail.com

Hey guys, I'm seeking some hardware technical expertise. I have a DEC 3000-300L and have a CRT monitor (with RGB & SOG). The monitor is over 13 years old and I'm not sure how much longer it will last. A friend stumbled upon a Sun LSA 800 flat panel monitors at a resale shop. Online search show the LSA 800 does Sync on Green, but not find details on resolution and freq. Anyone know if the Sun LSA 800 support the resolution and freq of the Dec? I'd like to swap out the CRT with the Sun LSA 800, but don't want to pay the shipping and then find out the Sun isn't compatible. Thanks Mike

8 years, 11 months

Cisco tunnels: update my IP

by b4＠gewt.net

Hi, Can I get my IP updated to 50.131.150.11 please? This should be static-enough. ;) GRE is being forwarded right through to a cisco 2620 I picked up at weirdstuff along with some weird stuff. ;)

8 years, 11 months

Mim.Update.UU.SE

by bqt＠softjar.se

Some people might have noticed that Mim.Update.UU.SE have not been reachable the last week. This is because the University have decided to put all systems behind firewalls, which hurt the Update computer club pretty bad. For people who would still like to get access to Mim, I have now setup telnet to listen to a second port in addition to port 23. Mim is now accessible by telnet on port 10023 as well, which is not blocked by an firewall. In addition, I also added ftp on port 10021 in addition to port 21, so people who would like to get to files on Mim by ftp can do so again. This also prompted me to make a couple of improvements to BQTCP/IP for RSX. The changes are that the telnet daemon can now be set to listen to an alternative port, and can also listen to several ports. I also added the capability to the ftp client to specify which port to connect to. The TCP/IP package can be found at ftp://mim.update.uu.se:10021/ However, if you have the previous version of TCP/IP for RSX, you cannot access this address, as the previous version ftp client did not accept a port argument. So it's a bit of a chicken and egg thing. But using some intermediate system, you can get the disk image to the machine, and install the new version, after which things will be possible to use more or less as before. One more thing: NEMA, my very tiny EMACS clone for RSX, have gotten a lot of work done lately, and if anyone is interested in this tool, I really recommend that you fetch the latest version. A port to VMS is also included with the files now, courtesy of Erik Olufsen. NEMA is available at ftp://nema at mim.update.uu.se:10021/ Johnny -- Johnny Billquist || "I'm on a bus || on a psychedelic trip email: bqt at softjar.se || Reading murder books pdp is alive! || tryin' to stay hip" - B. Idol

8 years, 11 months

Wanting to connect to HECnet

by mark＠matlockfamily.com

All, I am trying to bring my PDP-11/83 "Frodo" address 30.1 on to HECnet. I've been running Johnny's BQTCP and used FTP and TELNET to work from RSX11M+ to the rest of the internet. Now I want to connect to HECnet. I've reNETGENed and added the IP multinet device, rebooted and run INS.CMD and it all looks good. I do need to open the port in my router and direct it to the PDP-11 when I know the correct port #. I'm in the HECnet node database but I need to connect the IP-0-0 network line in BQTCP to another HECnet node. The PDP-11/83 DECnet name is Frodo and it is at DECnet 30.1 my static (as far as I know) IP address is 24.100.118.162 and it's DNS name is Matlock.DYNDNS-IP.COM I would need to know: the port # for the connection (700?) the host name at the end of the connection and it's DECnet address? also what cost you would like me to use for the circuit Again I am VERY new to HECnet but have been around DECnet since 1981. Thanks! Mark Matlock

8 years, 11 months

The 2016 CHIMPY VT100 Retro Tetris Challenge is now officially on!

by sampsa＠mac.com

CHIMPY:: can be reached at telnet to hilant.sampsa.com port 2710. This is for EU players. I still need someone to host a US server as lag really is an issue. Any volunteers? (I?ve got binaries for the AXP version but having some issues getting the VAX one to work) This year's prize is THREE QATARI RIYALS plus of course a printed certificate of your amazing Tetris skills. The competition will run until October 1st, 2016. As before, please if you get the current high score, please take a screenshot of it and email it to sampsa [at] mac.com. sampsa

8 years, 11 months

Looking for VAX 8600 Diagnostic Supervisor (EDSAA.EXE)

by Mark＠infocomm.com

I've been working on rewriting parts of the VAX simulator(s) to avoid some of the undefined behaviors that the C language has relating to overflow and shifts of signed integer values. Changing the details of how instructions are implemented comes with the non trivial potential to break more things than are being fixed. To manage this, I've been trying to use the basic CPU diagnostics that DEC for the systems being simulated. I have found the VAX Diagnostic Supervisor for the 11/730, 11/750 and 11/.780. I'm missing the VAX 8600's diagnostic supervisor. If someone knows where I can find a version of this file it would be helpful. Thanks. - Mark

8 years, 11 months

Jump to page:

2025

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

2008

HECnet