July 2018 - Oberon - mailman3.inf.ethz.ch

Wanted: Oberon Syntax in TextMate, Sublime Text or Atom Grammar
by Treutwein Bernhard 01 Jan '22

01 Jan '22

Does somebody have grammars for Oberon / Oberon-2 / Component Pascal / Active Oberon as grammar for TextMate / Sublime Text / Atom Background: Github wrongly classifies Oberon / Oberon-2 / Component Pascal / Active Oberon as Modula-2. I opened quite some tiome ago an issue in the github/linguist project (https://github.com/github/linguist/issues/3888) and they don't accept EBNF grammars. -- Bernhard Treutwein

6 9

FPGA - Screen.Mod
by Tomas Kral 26 Oct '18

26 Oct '18

Hi, EDIT (1) I am looking for `Screen.Mod' module (mainly its `Screen.Grub' command) hinted in PO2013 pictures. I have completed early version of `Bitmaps.Mod' supporting basic set of raster operations. I wish to share pictures and code. As we may not post attachments to the forum, I could expose to GitHub, there is also `WikiBook' run by Lyall E. Please advise. Many thanks. -- Tomas Kral <thomas.kral(a)email.cz>

4 15

FPGA Oberon - Definition Module Tool
by thomas.kral＠email.cz 08 Oct '18

08 Oct '18

Hi, I am thinking of a simple tool that could extract definition info from *.Mod and produce respective *.Def file. Definition files can be quickly looked at, to remind a programmer of the interface *.Mod modules export. While on Linux one could use grep $ grep PROCEDURE\ * *.Mod.txt to obtain info at least about procedures, but how about exported types and variables? I am looking for a recommended way how to simply code such a tool, is it a good idea to use `ORP' parser somehow for the task? I prefer to code it simple, does not have to be perfect, but should carry the idea. Tomas

5 11

Re: [Oberon] Oberon board availability
by Chris Burrows 28 Aug '18

28 Aug '18

> -----Original Message----- > From: Oberon [mailto:oberon-bounces@lists.inf.ethz.ch] On Behalf Of > Magnus Karlsson > Sent: Saturday, 28 July 2018 7:04 AM > To: oberon(a)lists.inf.ethz.ch > Subject: Re: [Oberon] Oberon board availability (was Moving oberon to > RISCV?) > > Or you could buy a new Pepino Oberon Kit from Saanlima Electronics > with an Oberon system ready to go, just add monitor, keyboard, mouse > and USB cable. The kit is normally $104.95 but is currently on sale > for 20% off (use coupon OberonGo at checkout). > > See > http://saanlima.com/store/index.php?route=product/product&product_id= > 71 > for more details. We have just finished preparing a new disk image and Verilog bitstream files specifically to run the Project Oberon Workstation on the Pepino LX9 FPGA development board 'out-of-the-box'. This release is based on the very latest Oberon sources (July 2018) and Verilog sources (Jun 2018) as described in 'An Update of the RISC5 Implementation', by Niklaus Wirth 15.6.2018: https://people.inf.ethz.ch/wirth/ProjectOberon/RISC5.Update.pdf The system also includes our enhancements: Support for Numeric / Character CASE statements in the compiler, optional real-time clock devices, timestamps on uploaded files, the additional high-capacity file system HCFiler and more source code examples. The entire source code of the system, including the compiler, is included on the disk image. Go to http://www.astrobe.com/RISC5/Workstation for more details and to request a copy of the system, Regards, Chris Burrows CFB Software http://www.astrobe.com/RISC5/Workstation

5 18

Re: [Oberon] Wanted: Oberon Syntax in TextMate, Sublime Text or Atom Grammar
by Bill Buzzell 07 Aug '18

07 Aug '18

Take a look at CudaText. It is an awesome text editor built in Lazarus/Freepascal. Is is built around the SynEdit component, by the original developer of the SynEdit from Delphi (I do believe Alexey is the original programmer or on the original team). What is really appealing is that we have access to the open source Lazarus project files to take it in any direction necessary. Compiler integration is quite simple even without extra coding. The possibilities with CudaText as a "front end editor/project manager/ integrator" for ProjectOberon is quite interesting. CudaText is surprisingly complete and would not require (relatively) much work to have a cross-platform, pc based ProjectOberon front end. I already have the lexers built for Oberon, PicL, and Lola-2 mostly complete. They are in the online repo, which is a neat feature of CudaText. Have a look: http://uvviewsoft.com/cudatext/

3 4

Oberon board availability
by Andreas Pirklbauer 31 Jul '18

31 Jul '18

> I just asked whether Chris used the most recent official compiler which > is now the same between Experimental Oberon and the NW version. I > hope he did, but I would not be surprised if the version slipped back to > before the EO/NW merger. Just to restate it again: There is no such thing as an “official Oberon - Experimental Oberon compiler merger” (at least not that I am aware of..) The EO just happens to be based on the latest version of the official Oberon compiler, which was last updated on 22.7.2018. The EO compiler is NOT compatible with the official one (different object file format), and (now) offers some additional features that are not implemented in the official compiler (nor do I expect them to be added there anytime soon = never?), including: - Numeric case statement - No access to intermediate objects within nested scopes - Forward references and forward declarations of procedures - Exporting and importing of string constants - Generic heap allocation procedure NEW(p, size) - Module contexts It’s amazing: We all have used source code control systems since years or decades, but when it comes to Oberon, we do time travel back to the 80s and are down to email.. -ap

1 0

NAstrobe for RISC5 on Pepino
by Andreas Pirklbauer 31 Jul '18

31 Jul '18

> Wonderful. You are aware that the compiler has been very > recently merged with Experimental Oberon? Is yours the same > as the latest official compiler? Wojtek - just to clarify: The official Oberon-07 compiler at https://www.inf.ethz.ch/personal/wirth/ has indeed been updated on 22.7.2018. But it has NOT been merged with Experimental Oberon. Experimental Oberon just happens to have included some of the same improvements on 22.7.2018 as well ;-) PS: The two compilers are (intentionally) NOT compatible. -ap

1 0

Re: [Oberon] Arduino MKR Vidor 4000 (was New Hardware for Oberon / Risc-5 ?)
by Peter Matthias 30 Jul '18

30 Jul '18

2 1

Importing string constants in PO
by Andreas Pirklbauer 29 Jul '18

29 Jul '18

> Peter Matthias PeterMatthias at web.de Tue Feb 20 21:01:06 CET 2018 > > > Importing string constants does not work in PO. > > > Strings from same module are shown. > > > The fix would be to make string constants aware > > of modules. This require rewriting the compiler. > > Thanks for clarification. Although I think ORG.Mod should be updated to > give an error when importing string constants, like I will do in my ORGx.Mod > Peter Ok. So I couldn’t resist... although it’s easiest to simply disallow exporting and re-importing string constants, I did the implementation: http://github.com/andreaspirklbauer/Oberon-importing-string-constants Implementation cost: ~5 lines. PS: I have seen several different, more or less complex, ways to do this over the years. Some store the string itself in the symbol file, others the string buffer position (strx). I decided to store the string's export number (exno) and treat string constant like exported variables.. -ap

1 0

Re: [Oberon] Moving oberon to RISCV?
by Peter Matthias 28 Jul '18

28 Jul '18

1 0