May 2014 - Oberon - mailman3.inf.ethz.ch

Proof of Concept, ARM Linux Oberon
by Peter Matthias 14 May '14

14 May '14

Hi all, I put the current state of ARM Linux Oberon public. Only the modules needed for development are included. More information here: http://matthias.dnsdynamic.com/oberon/doku.php?id=alo (it's my Desktop, so it might have downtimes) Regards, Peter

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Re: [Oberon] Oberon] initializing variable - was: Maintained open source Oberon/Oberon-2 compiler?
by Treutwein Bernhard 14 May '14

14 May '14

> If not, are declared variables initialized to a default value? you can initialize in the body of the module. Constructs like VAR temp_int: INTEGER = 100; add a lot overhead to linker (and for the Oberon System to the dynamic loader), which should be avoided. MODULE bodies allow to do that transparently and you see what has to be done. > If not, are declared variables initialized to a default value? as far as I know, this is deliberately unspecified. -- Bernhard

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How ETHO trumps WaltDisney.
by eas lab 14 May '14

14 May '14

My question is how to use ETHO to get back the efficient emailing of the 90s - pre-gmail? Here's a few concrete examples of how ETHO:TextMail.* was so superior in saving YOUR time and effort. For email there are only 4 actions: directory = show me what's available; fetch : those ones; delete : those ones; send : this one & this one ..... TextMail.Directory gave you a textFrame <piece of paper>, which listed your directory [at the ISP] which you could keep/place anywhere. And this <piece of paper> was a live object, which effectively had 'buttons' for fetch and delete. But the buttons were subtle/space-economical: being mere words in the frames menu-bar. With WaltDisneys's gmail, there are delete buttons at top and bottom. So if you are in the middle none is visible. That's ONE example of how ETHO of the 90s was superior to Modern xxx. Each fetched email of ETHO:TextMail came on its own separate <piece of paper> which you could edit/save/delete/move/hide.. independantly of the MailDirectory or other TextFrames. With gmail: selecting a fetch from the directory, REPLACES the directory with the fetched text. It treats you like a baby: who can have only one-thing-at-a-time. ETHO allows you to keep the Directory, indefinitely, and examine it repeatedly, and even color-mark [as all ETHO frames can] any entry. As mails are deleted [at the ISP] they disapear from the 'live' directory frame. Also optimisations exist, like: delete-all-mails-from-this-marked-one-plus-all-EARLIER-ones. When it became necessary to include sender-authorisation for emailing, TextMail.Mod was easily updateable. The code was clearer and better factorised than most ETHO sources. After the 'revolution' my ISP collapsed and I was forced to use gmail. ============ So, theoretically gmail is available via pop & imap [on special ports] but it needs <encrypted transmission>. LEO's SSH seems to be a whole suite of modules? And I'm reluctant to start trying it without confirmation that others have tested that it will handle gmail. ===== SSH looks like the absurdity of connecting the rPi, 2 m away from the PC using an encrypted ethernet [national-railway-equivalent + visa]. Did anybody manage gmail with the ETHO-family? == Chris Glur.

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Re: [Oberon] Maintained open source Oberon/Oberon-2 compiler?
by Matic Kukovec 14 May '14

14 May '14

Thanks for all of the information, guys. I will try one of the mentioned compilers. Thanks again, Matic

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In Spirit of Oberon
by volkert＠nivoba.de 14 May '14

14 May '14

Dear all, I am starting to collect some ideas for the "Manifesto". Need some help. Here my questions for you: 1) What does "In Spirit Of Oberon" mean for you? 2) What are the essential characteristics of "Oberon" (PL, OS) for you? 3) Why is "Oberon" important for you? BW, Volkert

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Compiling in the RISC emulator
by Charles Perkins 13 May '14

13 May '14

I have downloaded, compiled, and run the Oberon V5 RISC emulator... thank you Peter for building this! I am trying to compile Clibpoard.Mod and failing. This is what I see in the System.Log: Clipboard.Mod compiling Clipboard pos 1513 new symbol file inhibited compilation FAILED I see 'new symbol file inhibited' for all compilations, I suspect I am missing something important. I am using the RISC.img from S3RISCinstall.zip downloaded from http://www.paddedcell.com/projectoberon/S3RISCinstall.zip Is there a different RISC.img file that I should use or a command I must run first?

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Re: [Oberon] Maintained open source Oberon/Oberon-2 compiler?
by David Egan Evans 13 May '14

13 May '14

I have documented as best I can all existing compilers for Oberon, or those directly related, at my website. (Comments for improvement are always welcome.) There are two strictly Oberon-2 compilers that I know of that are still maintained: Oxford (obc) and Vishap (voc). Both authors have indicated a desire to migrate to Oberon-07. voc will likely be forked for -07, while obc has already added ELSIF in WHILE, etc. while still maintaining code compatibility for the present time. -- D. E. Evans http://oberon07.com

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Maintained open source Oberon/Oberon-2 compiler?
by Matic Kukovec 13 May '14

13 May '14

Hello Guys. Are there any somewhat recently maintaned open source compilers for Oberon/Oberon-2? The only one I found was Zonnon for .NET, which is great, but it is not a true Oberon compiler and does not compile to machine code. I also found XDS, but it seems to be only freeware, not open source. Another thing I wanted to ask was, when a variable is declared, is there a way to initialize it on decleration like in Free Pascal: VAR temp_int: INTEGER = 100; If not, are declared variables initialized to a default value? Thanks, Matic

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Verilog module generator - porting Oberon-07 'V5' to another FPGA module
by "ɹǝzıuıʇnɹɔs ǝoɾ" 12 May '14

12 May '14

this might be helpful when porting Oberon-07 'V5' to another FPGA module: * Perlilog is a command-line tool which generates Verilog modules from a set of files, which come in several other formats. It was originally designed to integrate Verilog IP cores. It's released as free software (GPL). Motivation: Anyone who has needed to integrate a few Verilog modules into something working, knows it's a headache. It's not only a mechanic task, but also a source of bugs. Since Verilog modules' interface is basically wires, the integration task requires an accurate understanding of what each wire stands for, and how it's expected to behave. Having many details to keep track on, it's common that undesidered ... http://www.billauer.co.il/perlilog.html

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file size/memory limits for native A2
by Zdenek 12 May '14

12 May '14

What is the file size limit for native A2 file system? What is the memory size limit for A2 OS? z.

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