August 2008 - Oberon - mailman3.inf.ethz.ch

Linux Oberon error
by Chris Glur 26 Aug '08

26 Aug '08

Martin Bishop wrote: > I followed the instructions here > (ftp://ftp.inf.ethz.ch/pub/Oberon/System3/Unix/x86.Linux/Readme.txt) to > install Linux Oberon, however when I try to start it, I get: > > martin@thinkpad:~/workdir$ oberon > Oberon Boot File Loader 22.11.2004 > starting System.Init > Trace/breakpoint trap > martin@thinkpad:~/workdir$ > > Any way to fix this? -- My now running: "ETH Oberon (2.4.3) for Linux x86 System.Time 23.08.2008 03:19:55 . Threads disabled! " showed: Oberon Boot File Loader 22.11.2004 starting System.Init So at least you seem on the right course. My now running: Threads enabled version has lost what it 'showed on startup'. I don't think the Oberon-system is writing: "martin@thinkpad:~/workdir$". So I think it's at the linux stage. This could be difficult to debug. Is 'Trace/breakpoint trap' a <dir>/file name, with the vital info ? You've got the complexity of linux overlaid with the complexity of the ETH-Oberon system. For the last months I've been running linux from an old Mandrake9.1 version. And the loss of the caret position, when the display re-draws, when swithing to other applications annoyed. And Mandk9.1 couldn't handle the "Threads enabled" version of Oberon, which I hoped would fix the caret-poition-loss problem. So I'm now running linux FC1, less old than Mandk9.1, to see if the "Threads enabled" version is better. It is not. And it also traps for ET-popupmenues, which the Mandk9.1 version didn't. I'm using linux-oberon instead of standAlone-oberon because it allows me to fetch other linux-based inet loads, while I'm paying to have my oberon fetches payed for on a slow dial-up connection. It's also nice to be able to see the *.pdf, *.ps on the same box, by just switching tasks. Obviously linux-ETH-oberon is not as stable as StandAlone-ETH-oberon. == Chris Glur

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Oberon wikipedia page
by Martin Bishop 26 Aug '08

26 Aug '08

OK, I made an edit to the Oberon-1 page, but I also asked on the discussion page for Oberon-1 that Oberon-1 and Oberon-2's pages be merged into a single "Oberon" page.

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Oberon wikipedia page
by Martin Bishop 25 Aug '08

25 Aug '08

I updated the Oberon wikipedia page (http://en.wikipedia.org/wiki/Oberon-2) and included some new links and a new section about Oberon-07. The page could probably use a little more fixing up, though.

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Linux Oberon error
by Martin Bishop 25 Aug '08

25 Aug '08

I followed the instructions here (ftp://ftp.inf.ethz.ch/pub/Oberon/System3/Unix/x86.Linux/Readme.txt) to install Linux Oberon, however when I try to start it, I get: martin@thinkpad:~/workdir$ oberon Oberon Boot File Loader 22.11.2004 starting System.Init Trace/breakpoint trap martin@thinkpad:~/workdir$ Any way to fix this?

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Arrow-key substitute for mouse ?
by Chris Glur 25 Aug '08

25 Aug '08

I'm investigating a 4,5..8 button mouse/pointer, for handheld devices; [probably with 'capacitance-sensing-buttons']. And the first task [by the principle of hello-world/succesive-refinement] would be for me to refresh my memory of how the existing 'move the cursor/caret by the num-pad arrow-keys' feels. But neither my N-O 2001, nor Linux ETH-oberon 2.4.3 will 'move the cursor/caret by the num-pad arrow-keys'. Nor do I find documentation referring to this facility on hand. Am I dreaming that a version of N-O could do this - also diagonally ? TIA for help with this trivial but annoying for me query, == Chris Glur.

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Dr. Michael Franz
by Douglas G. Danforth 22 Aug '08

22 Aug '08

There is a very interesting article http://arstechnica.com/news.ars/post/20080822-firefox-to-get-massive-javasc… discussing Mozilla Firefox and a new upgrade to the JavaScript engine. It seems that the improvements are based on work by Dr. Michael Franz and Dr. Andreas Gal, research scientists at the University of California, Irvine. I believe Michael Franz was the greater of Slim Binaries http://wiki.tcl.tk/4400 I find this most interesting. -Doug Danforth

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Linux-Oberon's ftp.informatik.uni-bremen.de DOWN?
by Chris Glur 19 Aug '08

19 Aug '08

My otherwise good-working linux ftp shows: (6) Couldn't resolve host 'ftp.informatik.uni-bremen.de' for several days now. Also googling <uni-bremen.de> + oberon shows nothing. Is there a mirror-site for linux-ETH-oberon ? == Chris Glur.

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Old timers keep occupied ?
by Chris Glur 10 Aug '08

10 Aug '08

Hi Tim, > The other thing is having had someone in to do the worst rotten bits in the > roof of this house. Every body is saying the whole roof is rotten so we are > having all the brandering and plastic replaced. Surely you know [can see] if it's rotten. And why ? Is it these 'metal-sheet tiled type ? And water gets in ? Be careful of falling, at our age. We fracture bones easily. My class-mate told of his father in law who, while changing a light bulb, fell from the chair and fractured his hip, and died of pneumonia in hospital. I thought it far fetched, by my med-research re. my fractured femur from a gently push off my bike, needing breaking and going over the handle-bars, explained that the forced 'lying on your back' is dangerous re. pneumonia. > Anyway I try to keep busy as Diana is always wanting this or > that to be done. Reminds me of Mary: as an outside observer I can see that her hospital & clinic visits give structure and meaning to her life. It's quiet a challenge/an-outing for her to use the public transport and navigate the african-circus admin of the hospital/s. == Chris Glur.

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Operating API's on Windows
by "Hürlimann Bruno" 06 Aug '08

06 Aug '08

Hello I am working with WinAos205. It is possible to control other programs on Windows with commands on Bluebottle? Greetings Bruno

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RE: Where's Coco's 'hello world' ?
by Chris Glur 02 Aug '08

02 Aug '08

Jorg_Straube wrote: > > Normally, Wirth lives according to "Make it as > > simple as possible but not simpler". > > > > Look at this syntax: > > a) IF Cond THEN Statments END; > > b) WHILE Cond DO Statments END; > > > > Sometimes during debugging algorithms I find > > myself in the position to start with an IF and > > change it later to a WHILE! (Don't know, if > > I'm the only one with such an approach...) > > > > So, I have to change the "IF" into a "WHILE" > > AND THE "THEN" INTO A "DO"!! > > > > I always was wondering why he did not propose > > this syntax: > > a) IF Cond DO Statements END; -- Chris Burrows wrote: > Wirth has actually made a move in a similar direction very recently. In > Oberon-07 he has introduced an extension to the WHILE statement which has a > DO following an ELSIF. > > WHILE expression DO statementSequence This was all thrashed-out in the '60 by Wirth & other high-priests for Algol ? Of course there are marginal considerations, eg. if "FOR" should be included. ========= John Drake wrote: > Coco.Report.ps is an Adobe Postscript file. There is a free Postscript viewer for Linux > called Ghostscript. You can find a more detailed user manual in PDF format here: > > http://www.ssw.uni-linz.ac.at/coco/ Thanks, the *.ps which eventually did render via gv is from Linz. It's "PS-Adobe-3.0". I'm guessing that "PS-Adobe-2.0" 'time', linux's gv was immature, and the newer version can't handle "PS-Adobe-2.0". ========= Aubrey.McIntosh wrote: > I actually use Coco in lots of projects. Recently, I modified the > grammar given in the N. Wirth papers and have a Coco .atg file for > PICL that will compile with no Coco errors. Did you still keep his proposed forth-like syntax for the bit-operations ? Is Wirth's *.atg file available/public-domain ? Have you done testing down to the hardware level ? I've got a set of hardware tests that I designed for the Picforth compiler, which found a bug, which the author quickly fixed - years ago. Since you have experience with coco, can't you just write the 'hello world' for eg. my task, or your idea of a 'hello world'. I'll fill in the procedure-actions if you give them descriptive IDs. I don't want to work-blind, by just running a *.atg without knowing the background. My query to the <pic compiler> mailing list 'if pic16c84 is still available', got repeated condemnation for not using the later, better, cheaper version -- altho' pic16c84 is still available. The point is: * hardware is cheap, * software is expensive, * your OWN knowledge is the most valuable. That's why/how M$ was able to flourish: not forcing the original DOS users to abandon their invested labour ? Thanks, == Chris Glur.

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