March 2016 - Oberon - mailman3.inf.ethz.ch

New ETH low power Open Source Processor
by skulski＠pas.rochester.edu 02 Apr '16

02 Apr '16

greim <greim(a)schleibinger.com> wrote: Maybe its not new, bit quite interesting.... iis-projects.ee.ethz.ch/index.php/PULP www.pulp-platform.org These web pages mention "32-bit RISC-V core that was developed at ETH Zurich" and then refer to the RISC-V web site riscv.org, where one can read "RISC-V was originally developed in the Computer Science Division of the EECS Department at the University of California, Berkeley". Also Wikipedia attributes RISC-V to Krste Asanovic and David Patterson at UC Berkeley. The connection with ETH Zurich is somehow unclear. And there is also Universita di Bologna in the mix, mentioned on www.pulp-platform.org. RISC-V sounds quite close to RISC5, but the two are not the same. So here is another level of confusion. Perhaps ETH Zurich could sort these out and perhaps could somehow bring Oberon on board of RISC-V, PULP, and Pulpino, which are all somehow associated with ETH. ETH could perhaps clear the confusion and perhaps help the future users by adopting the ETH computer language to program ETH processor cores. At this point it seems pretty confusing to me. W.

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Message Objects in Oberon
by Srinivas Nayak 02 Apr '16

02 Apr '16

Dear All, Oberon OS source code uses Handlers and Message objects extensively. We know, they are costly (run time type check), unhandled messages consume more time even (sequential check of if else ladder), compilers can't catch the errors made (inappropriate message sent to an object). Still how do we consciously decide to use message objects more in Oberon (which benefits outweigh all these)? With thanks and best regards, Yours sincerely, Srinivas Nayak Home: http://www.mathmeth.com/sn/ Blog: http://srinivas-nayak.blogspot.in/

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Compiling PC Native Oberon from scratch.
by Srinivas Nayak 01 Apr '16

01 Apr '16

Dear All, Is it possible to compile the whole PC Native Oberon source code from scratch? Where can I find the assembler code for Kernel, Display and Files etc? Is there a document describing the compilation steps? Which compiler and tool chain is appropriate for this? With thanks and best regards, Yours sincerely, Srinivas Nayak Home: http://www.mathmeth.com/sn/ Blog: http://srinivas-nayak.blogspot.in/

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New ETH low power Open Source Processor
by greim 31 Mar '16

31 Mar '16

Maybe its not new, bit quite interesting.... http://iis-projects.ee.ethz.ch/index.php/PULP http://www.pulp-platform.org/ or in German: http://www.elektroniknet.de/halbleiter/prozessoren/artikel/128830/?cid=NL A processor from the ETH without Oberon.. what a pity..... Regards Markus

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Re (2): RISC.img format
by peter＠easthope.ca 31 Mar '16

31 Mar '16

From: Chris Burrows <chris(a)cfbsoftware.com>, Mon, 21 Mar 2016 18:10:18 +1030 > ... USB / SDCard adaptor which cost about $10. > e.g. search for 'SanDisk MobileMate USB Card Reader'. Functionally equivalent devices on eBay are priced as little as 1 $US delivered to your mailbox. Search for "usb sd adapter -mini -micro". A name branded adapter is probably more reliable or faster. For occasional use the econo version can work. Regards, ... Peter E. -- 123456789 123456789 123456789 123456789 123456789 123456789 123456789 12 Tel +1 360 639 0202 http://easthope.ca/Peter.html Bcc: peter at easthope. ca

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RISC5 Oberon on a $99 FPGA Development Board
by Chris Burrows 31 Mar '16

31 Mar '16

We have now successfully ported the RISC5 processor to Digilent's latest 'Arty' development board which uses the Xilinx ArtixR-7 35T FPGA device and retails at $US 99: http://www.xilinx.com/products/boards-and-kits/arty.html We are planning to support our 'Embedded' version of Project Oberon (i.e. not the full 'Workstation' version) running in the BRAM on this board. For more information on the Embedded and Workstation Project Oberon systems that can be used with the Astrobe IDE and to register your details to be notified when the Arty-targeted version is available go to: http://www.astrobe.com/RISC5 Regards, Chris Burrows CFB Software http://www.astrobe.com

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Re: [Oberon] Compiling PC Native Oberon from scratch.
by Treutwein Bernhard 30 Mar '16

30 Mar '16

Oops >>Is there a document describing the compilation steps? I finally found it: It is Native.Tool contained in SystemB.zip but I do not understand everything in it. regards -- Bernhard

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Converting Oberon .Mod files to plain ASCII .txt files
by Srinivas Nayak 29 Mar '16

29 Mar '16

Dear All, Is there any linux application that can convert Oberon .Mod files to plain ASCII .txt files? I collected ftp://ftp.gwdg.de/pub/languages/oberon/ftp.inf.ethz.ch/Books/ProjectOberon/ProjectOberon.V4.tar.gz I want to read these .Mod files. By the way, are these files correspond to Oberon System V4 or Oberon version 1.2 as described in the 1992 book? With thanks and best regards, Yours sincerely, Srinivas Nayak Home: http://www.mathmeth.com/sn/ Blog: http://srinivas-nayak.blogspot.in/

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Oberon .Def-inition files
by Tomas Kral 28 Mar '16

28 Mar '16

Hi, I'd love to ask about definition files, as I am now studying compiler and RISC chapters. I also briefly read through revised Oberon Language book. It seems definition files are not needed in Oberon, as they were used by Modula-2, .DEF along with .MOD Yet in Oberon V4 archive for Ceres-2, I can see a number of .DEFs (Display, Kernel, Math ..), I believe this is because these modules were coded in Assembly. Now with FPGA (Oberon V5) everything is coded in Oberon Language MOD files. DEFs are not needed. What use is nowadays for definition files, is it only for documentation purposes, application libraries? I also read somewhere about Browser and Watson tools, that can produce and also work with definition files. Many thanks. -- Tomas Kral <thomas.kral(a)email.cz>

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Re: [Oberon] Message Objects in Oberon
by Florian Negele 28 Mar '16

28 Mar '16

Dear Srinivas, according to the procedures Texts.Store and Texts.Close from your source code, Oberon text files begin with two tag bytes indicating the type and version, followed by a four byte offset that skips the rest of the header and points to the beginning of the actual contents. The offset is relative to the beginning of the file and represented in the byte order of the machine that stored the file in the first place (little-endian in your case). Note that Oberon uses carriage-return characters for new lines whereas Linux uses new-line characters. With this information at hand, it should be easy to write a small converter tool running on your system. Please feel free to contact me if you need further help. Best regards, Florian > Dear All, > > Is there any linux application that can convert Oberon .Mod files to plain ASCII .txt files? > I collected ftp://ftp.gwdg.de/pub/languages/oberon/ftp.inf.ethz.ch/Books/ProjectOberon/ProjectOberon.V4.tar.gz > I want to read these .Mod files. > > By the way, are these files correspond to Oberon System V4 or Oberon version 1.2 as described in the 1992 book? > > > With thanks and best regards, > > Yours sincerely, > Srinivas Nayak > > Home: http://www.mathmeth.com/sn/ > Blog: http://srinivas-nayak.blogspot.in/

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