User:TArntsen

These days a Unix and Linux geek, but I used to work with a Nord-10/S system back in 1982. From 1983 and until about 1986 I worked with real-time systems on ND-100, after that also ND-500, and ND-5000 systems as soon as they became available. The latter systems (first ND-550 and later ND-5500/5700) were deployed at ESA (the European Space Agency) from 1988 to approximately 1995 (when we replaced them with Silicon Graphics systems), where they were used for reception and processing of data from the ERS-1 satellite, and also the ERS-2 satellite in the final year. ERS-1 was launched in 1991 but ESA did fully manned 24/7 simulation-data operations on the first deployed system (ND plus VAX) for two years until launch.. how does that compare to your regular testing regime? :-)

I used to have several sets of what must have been close to every manual Norsk Data ever produced, but unfortunately everything somehow got thrown away at some point, except for a few documents. I also have lots of CCT backup tapes (although some of them are probably quite degraded by now), and I once wrote a tool to read backup-system format tapes on an SGI system, but unfortunately I only copied a couple of tapes back then when I still had a CCT tape drive.

All of which goes to show that despite the best of intentions information loss does continue to happen..

(oh, and I'm also writing my own ND500(x) and ND100 emulators.. the latter just so I can use assembler-500.prog to generate test programs for the former)

Edit: Updating the timeline a bit as and when my memory recall improves.

TArntsen 11:09, 19 October 2009 (UTC): For my contributions to the wiki Mike may use any license he sees fit.

Update: The activity seems to be a bit low these last few months, I guess we all happened to be busy with other things at the same time. I do however have some updates planned which I will add in the not-too-far future. TArntsen 14:29, 25 February 2010 (UTC)

Software for ND-100
* Snoopy calendar program for ND-100. It creates a SNPCAL:OUT file with calendar for 1988. This is the original IBM version modified for PDP-11 slightly modified for ND. The tar file contains source and data files, and an ND-100 executable compiled in 1-bank mode for easy network transfer. There is also a sample output file. Source files have Sintran line endings, but names must be changed from FILE.TYPE to FILE:TYPE

ND-100 disassembler
* http://www.box.net/shared/voqjcalxgk This is a disassembler for ND-100 which executes on *nix (this particular one is for Linux). Disassembles BPUN and PROG files, but also non-programs like floppy bootstrap code or SINTRAN:DATA (which is a file in a Sintran filesystem which simply maps to the first pages of the directory image itself). Usage is fairly simple: ./dump100 -h Usage: ./dump100 [options]  Options: -h             Print this help and exit. -o    Optional start offset, in 16-bit words. Default is start address for PROG and BPUN files, and 0 for RAW files. -b             File is a BPUN file. -p             File is a PROG file. -r             File is a RAW file (no header).

Default file type is deduced from the file extension unless -p or -b is specified. -r must ALWAYS be set for raw files. If both -p and -b are specifed then the last takes precedence. Don't use -b or -p with -r. ./dump100 ~/brf-linker-c01.prog |more Start address : 30031b Restart address: 30031b First address : 0b Last address  : 77023b Bank 2: First address : 0b Last address  : 26011b 030031 : 171400 SAX 0 030032 : 135137 JPL I * 137 030033 : 000002 STZ * 2 030034 : 002372 STZ ,X - 6 030035 : 010000 STT * 0 030036 : 000001 STZ * 1 030037 : 000000 STZ * 0 030040 : 124024 JMP * 24 030041 : 146147 COPY SL DX .. ./dump100 -r ~/nd-image |more Start offset : 0b First address : 0 Last address : 177777b 000000 : 150405 PIOF 000001 : 150001 TRA STS 000002 : 170412 SAA 12 000003 : 150103 TRR PCR 000004 : 170400 SAA 0 000005 : 150111 TRR LCIL .. Sorry for the simple box.net link. This is only a tar.gz file with a statically linked 'dump100' application, it will work on Linux i686 or x86-64 if the kernel is reasonably new - it won't work on 2.6.8, for example, but it will work on at least 2.6.22 or later. Maybe as old as 2.6.18, I'm not sure.

I'll do a proper release at a later point, with source etc. It'll be GPL'ed. I will also add the actual lib function itself (the dump100 tool is just a user interface to the function). The function itself is useful e.g. in emulators/emulator debuggers where you want a trace of the executing code, for example. I'll add an update for that as soon as I can, I'm rather busy right now so this is just to get something out that maybe a very few persons might find useful. A rather limited market I presume, but so be it :-) --TArntsen 16:50, 31 May 2011 (CEST)

Curiosity:
My ND-100 emulator (user-level only) on my Nokia 900, running PED:

The LED editor help screen
Notice this spelling error in the first A01 release. It was still there in later versions, at least as late as verson B03!