December 2021 - Oberon - mailman3.inf.ethz.ch

Re: [Oberon] Emulators
by Jörg 14 Feb '22

14 Feb '22

Wojtek > How can I proceed, in practical terms, to use your JS emulator for development? Perhaps we should start discussing, WHAT you want to change. At the moment I see three different levels of HW modifications: easy, more difficult, impossible. Basically, see an emulator as virtualization. In virtualization you have a host machine (where the emulator runs on) and a guest machine (this is the FPGA board). I ignore „containers“ at the moment Easy: if you want to extend the RISC-5 instruction set in Verilog (eg add an autoincrement instruction) the modification of the emulator is rather straight forward. I neglect the fact that you have to modify the Oberon-07 compiler to use this new instruction, because this is not important for the emulator. More difficult: if you want to add IO mapped HW (eg Ethernet or Wifi) or memory mapped HW (eg color display) to your FPGA and the host machine has an equivalent of this HW, with a little bit of effort the emulator can be modified to map the IO register commands or new memory layout to the corresponding host HW. Impossible: if you want to add HW to your FPGA and the host machine does not have an equivalent HW (eg a neutrino sensor) then it‘s impossible for the emulator to mimic the new FPGA HW. br Jörg

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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

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Re (2): Clock and calendar in A2.
by peter＠easthope.ca 31 Dec '21

31 Dec '21

From: Sergey Durmanov <serge.durmanov(a)yandex.ru> Date: Fri, 31 Dec 2021 19:52:27 +0700 > ... Autostart section in the Configuration. But the position on the > screen will not be restored. Straightforward. Thanks. > Another variant: arrange widgets(Clock&Calendar) on the screen > and save the state of the desktop (Menu-System-Save Desktop). Next time the system starts it refers to my Configuration.XML. How can it be directed to the saved configuration? Thx, ... P.L. -- mobile: +1 778 951 5147 VoIP: +1 604 670 0140 48.7693 N 123.3053 W

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Clock and calendar in A2.
by peter＠easthope.ca 31 Dec '21

31 Dec '21

Greetings for the New Year, The list is awfully quiet now. Here's a frivolous question. In A2, System > Clock gives a digital clock. Similar for calendar. Should be possible to start the clock with a command in the Autostart section of Configuration.XML but I haven't found the command or source. Ideas? Thanks, ... P. -- mobile: +1 778 951 5147 VoIP: +1 604 670 0140 48.7693 N 123.3053 W

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Oberon initial ideas by Wirth
by Pablo Cayuela 24 Dec '21

24 Dec '21

Dear fellows, I've recently discovered more material related to Project Oberon, Ceres Computer and even to Lilith Computer and MEDOS on www.bitsavers.org (fascinating site) at Software and Computing Archives. The site was already mentioned many times in the Oberon list related to many articles and documents hosted there. I'm amazed to read some of the first emails by Prof Niklaus Wirth on the starting ideas to design a new operating system while at Xerox sabbatical visit. I hope you enjoy it as well as me. I don't know if it was mentioned before, but in case it is no, here it is: http://www.bitsavers.org/pdf/eth/ceres/OberonBasicIdeasNW.pdf Best regards, Prof Pablo Cayuela Argentina

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Re (2): Re (2): A2 WebBrowser.
by peter＠easthope.ca 23 Dec '21

23 Dec '21

From: Chris Burrows <cfbsoftware(a)gmail.com> Date: Wed, 22 Dec 2021 15:18:34 +1030 > I tried browsing some local pages on Windows 10 using A2/WinAos. Apart from > a suspected problem with hyphens in folder names, that worked OK. I see > error and trace messages in the Kernel Log viewer, do you? For example: > > ... > ... > ContentLoader: Loading: file://D:/WebAstrobe/Cortex-M3/default.htm > file not found: file://D:/WebAstrobe/Cortex-M3/default.htm > Not found: file://D:/WebAstrobe/Cortex-M3/default.htm > ContentLoader: Loading done. > ContentLoader: Loading: file://D:/WebAstrobe/CPIde/matrix.htm > ---Loading HTMLPanel. Url: file://D:/WebAstrobe/CPIde/matrix.htm > ---Parsing file://D:/WebAstrobe/CPIde/matrix.htm > ---Parsing done. > ... > ... ContentLoader: Loading: http://bluebottle.ethz.ch Not found: http://bluebottle.ethz.ch ContentLoader: Loading done. ContentLoader: Loading: file:///home/peter/MY/Peter.html ---Loading HTMLPanel. Url: file:///home/peter/MY/Peter.html ---Parsing file:///home/peter/MY/Peter.html ---Parsing done. ---Loading StretchImagePanel. Url: file:///home/peter/MY/SalishSea.jpg... done. ContentLoader: Loading done. No problem evident there but the browser shows only "Loading...". Thanks for checking, ... P.L. -- mobile: +1 778 951 5147 VoIP: +1 604 670 0140 48.7693 N 123.3053 W

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Re (2): A2 WebBrowser.
by peter＠easthope.ca 22 Dec '21

22 Dec '21

From: Liam Proven <lproven(a)gmail.com> Date: Mon, 20 Dec 2021 18:50:34 +0100 > Are you referring to my email from last June? Yes. > You need to try non-HTTPS sites. Certainly. Firefox and Dillo open a trivial local page. file:///home/peter/a.html The A2 WebBrowser freezes at "Loading...". The failure is lower level than TLS. You have UnixA2 (LinuxA2)? A2 on a bare PC? Which revision of A2? 32 bit machine? 64 bit? Thanks, ... P.L. -- mobile: +1 778 951 5147 VoIP: +1 604 670 0140 48.7693 N 123.3053 W

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Re (2): Re (2): A2 WebBrowser.
by peter＠easthope.ca 21 Dec '21

21 Dec '21

From: Liam Proven <lproven(a)gmail.com> Date: Tue, 21 Dec 2021 10:16:15 +0100 > This was on bare-metal on a Thinkpad X200. I will have to fire it up to check. > > I also tried bare-metal A2 but running in VirtualBox on an Intel iMac. Native vs. LinuxA2 is a significant difference. No problem with email here. The only failure observed is for WebBrowser. Thanks, ... P.L. -- mobile: +1 778 951 5147 VoIP: +1 604 670 0140 48.7693 N 123.3053 W

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A2 WebBrowser.
by peter＠easthope.ca 20 Dec '21

20 Dec '21

>From lproven at gmail.com Wed Jun 9 18:17:08 2021 > I have recently tried the A2 browser ... Here LinuxA2 Gen. 32-bit, rev.9799 is in Debian 11. Apps > WebBrowser opens the browser. The default home page is http://bluebottle.ethz.ch which is not available. Consequently the display is "Not found: http://bluebottle.ethz.ch". OK. If a live URL is supplied, the display is "Loading..." but nothing else is rendered. Appears communication is broken. Any tips? Did you adjust Configuration.XML? Thanks, ... P.L. -- mobile: +1 778 951 5147 VoIP: +1 604 670 0140 48.7693 N 123.3053 W

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Oberon is on HackerNews again
by Liam Proven 17 Dec '21

17 Dec '21

http://www.edm2.com/0608/oberon.html https://news.ycombinator.com/item?id=29581754 -- Liam Proven ~ Profile: https://about.me/liamproven Email: lproven(a)cix.co.uk ~ gMail/gTalk/FB: lproven(a)gmail.com Twitter/LinkedIn: lproven ~ Skype: liamproven UK: (+44) 7939-087884 ~ Czech [+ WhatsApp/Telegram/Signal]: (+420) 702-829-053

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