November 2013 - Oberon - mailman3.inf.ethz.ch

Re: [Oberon] WITH removal in Oberon-07
by Paul Reed 13 Mar '14

13 Mar '14

> Date: Thu, 21 Feb 2013 22:52:05 +0100 > From: "Frans-Pieter Vonck" <fp(a)vonck.nl> > Subject: Re: [Oberon] WITH removal in Oberon-07 Hi Frans-Pieter, > i watched your presentation at MEDIA OberonDay2011. > Am I right that you made an ARM emulator first. No. The virtual machine is RISC, as in Prof. Wirth's Compiler Construction book (published in English in 1996 and updated on his home page http://www.inf.ethz.ch/personal/wirth/) > And did you use this emulator to ran Oberon System07 on top of it? It's not called System07, but it's basically the original system in the Project Oberon book, modified to compile under Oberon-07, run inside a RISC virtual machine executing on a bare-metal PC. > You showed a Spartan FPGA. I scanned through the Verilog ARM code. But > that seems a to big leap to me. I don't know what Verilog code you are referring to here. The Spartan-3 board only has 500K gates and 1MB of external static RAM, so it's much smaller and simpler than a typical ARM system. But ideal for Oberon. > Do you think it is possible to run [The Oberon System, compiled in Oberon-07] on an of the shelf > board with a Cortex M3 processor? I don't see why not, but most small ARM boards don't have a video framebuffer. The Raspberry Pi does, but it's a complicated board, as I've said before. The Oberon inner core (Kernel, FileDir, Files, Modules) and even the text system do not actually require a framebuffer display, so you could build a hybrid system. Using a simple FPGA board allows us to avoid the vast and irrelevant complexity inherent with most ARM System-on-Chip (SoC) systems; but since field-programmable gate arrays are so flexible, they will never be as cheap or as fast as a dedicated ARM. That's life. :) HTH Paul

4 5

Can ETHO be ported to ARM?
by eas lab 13 Jan '14

13 Jan '14

No, not the <language>, but the unique interface of S3/V4. What matters is the human-interface. That's what determines your productivety [maximum gain for minimum pain]. Not needing to switch between awkward F-keys and the screen, and having easy access to multiple text-files together, and each text-view having <what the bottle does, written on the bottle, instead of in the filing cabinet>. Porting ETHO to linux [both S3 & V4] was a killer app:. you get the Inet capability of *nix together with the superior human-interface of ETHO, plus you can view *pdf, LaTex..etc. on the same screen. For tricky problems, needing simultaneous views of: email/s, USEnet/s, your test-logs EHO is unbeaten, especially with the text colouring facilities, which help extract the meaning of difficult explanations. Because opeing/closing a new ETHO-for-linux takes a second, it's viable to have several copies running in the various dirs, which are handling current problems. Real life doesn't allow fixing one problem at a time. Can those of us who want to escape the WinTel monopoly, hope to use ARM based CPUs with an ETHO-like interface, by a porting of the existing/proven code? == Chris Glur. PS. LNO's inability to easily navigate the dir-tree, limits its utility.

3 7

Oberon-2 cross compiler source for INMOS T800 Transputer available now (OP2/V4)
by "ɹǝzıuıʇnɹɔs ǝoɾ" 07 Dec '13

07 Dec '13

http://modulaware.com/mdlt/?n=89#t800-op2 written in 1990 by Stephane Micheloud. since 2013 there's a free open-source Transputer emulator; follow link.

4 4

Re: [Oberon] Oberon Digest, Vol 114, Issue 7
by Søren Renner 03 Dec '13

03 Dec '13

After a decade of coding in AOS, I still miss NO. On Sat, Nov 30, 2013 at 5:00 AM, <oberon-request(a)lists.inf.ethz.ch> wrote: > Send Oberon mailing list submissions to > oberon(a)lists.inf.ethz.ch > > To subscribe or unsubscribe via the World Wide Web, visit > https://lists.inf.ethz.ch/mailman/listinfo/oberon > or, via email, send a message with subject or body 'help' to > oberon-request(a)lists.inf.ethz.ch > > You can reach the person managing the list at > oberon-owner(a)lists.inf.ethz.ch > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of Oberon digest..." > > > Today's Topics: > > 1. Re: Oberon-2 cross compiler source for INMOS T800 Transputer > available now (OP2/V4) (eas lab) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Fri, 29 Nov 2013 20:04:50 +0200 > From: eas lab <lab.eas(a)gmail.com> > Subject: Re: [Oberon] Oberon-2 cross compiler source for INMOS T800 > Transputer available now (OP2/V4) > To: ETH Oberon and related systems <oberon(a)lists.inf.ethz.ch> > Message-ID: > < > CAN3-DLGb9LyufHqMSRnkGqvXEA-4TEyTeFD4jQfm6s6T+1fDzg(a)mail.gmail.com> > Content-Type: text/plain; charset=UTF-8 > > I don't appreciate 'these-days-twitter-style' minimal content burps. > So here is some contents:- > ETHO is much less about the language, than the unsurpassed total OS, where > you > see everytihing on the single screen, without the need to bob-yo-head > upNdown > between keybrd & screen. > > LinuxEthOberon builds on this to newly discovered extremes. > My original 40GB IDE for ETHO from the 90s started failing; and I have some > valuable legal files on some of the 48 partitions. > > LNO can read these, on the same PC that's running Linux for other tasks. > LEO is more convenient/versatile than LNO, but I was astounded that LEO > can ALSO read the AosFS partitions of old:nativeOberon. > > It doesn't directly fetch and display file contents. > But you can: from linux -> running LEO -> run any *nix command. > And of course the *nix command repetoire is massive. > > This is linux leveraging LEO leveraging Linux! > > So with 'try' being a symbolic-link to an AosFS partition on the > old NativeOberon disk something like: > read the whole NO partition & > delete all non-ascii-chars & > fold the lines < 80-char-len & > print all lines to a file, which contain the critical name that we're > searching; > allows you to search the whole partition, and extract the critical text. > > Previously I remember examining the AosFS structure. > IIRC Partitions.Mod has got nice clear code, and it's not difficult to > extract > the dir & file structure. So the actual files could perhaps be accessed. > I wonder what would happen by 'porting' Partitions.Mode to LEO? > --- Here's actual logged code and results including my errors:-- > >> -> System.Execute cat try | tr -d \\200-\\377 | hexdump -C | head > >> == looks OK. So count lines containing "Heus". Let's see line-count ? > >> > >> -> System.Execute cat try | tr -d \\200-\\377 | fmt | grep Heus | wc -l > >> ==1 <- ! I can see *MANY* "Heus" in many of the different 'folded' > lines! > >> > >> -> System.Execute cat try | tr -d \\200-\\377 | fmt | wc > >> == 1000653 9864738 72189840 <- 100Klines for 72MB > >> > >> What am I doing wrong, to fail to `grep <all lines containing "Heus">? > > > > Your 'tr' command is leaving behind a lot of non-printing characters in > > the \000 to \037 range, which is going to cause 'grep' to report > > "non-ASCII" and may be seriously confusing the 'fmt' command. You do > > need to preserve formatting characters such as \n, \t, \r, but you should > > delete the others. Try this: > > > > tr -d \\000-\\007\\016-\\037\\177-\\377 > > > > That leaves the just the range \010 (BS) through \015 (CR) and the > > ASCII characters \040 (SPACE) through \176 (~). > > OK, afterwards I thought of the (chars < Octal_37), like <bell>. > I'll test and file-away your tr-version. > Perhaps `strings` is appropriate. > ---- end of USEnet query:------------- > > For non*nix users: > cat try | tr -d \\200-\\377 | fmt | grep Heus | wc -l > means: output file:try [the whole partition] & > delete all chars between Octal(200...377) & > use the `format` filter to <clean up> the lines of text & > output only lines containing "Heus" & > count and list newline, word, and byte of previous stage. > > So with LEO, you get the superb HCI of ETHO, PLUS the massive facilities of > the *nix industry. > > == Chris Glur. > > Did I mention that it's free? > Provided you can detach yourself from the herd.... > > > > On 11/27/13, "??z?u??n??s ?o?" <scruty(a)users.sourceforge.net> wrote: > > http://modulaware.com/mdlt/?n=89#t800-op2 > > > > written in 1990 by Stephane Micheloud. > > > > since 2013 there's a free open-source Transputer emulator; follow link. > > > > -- > > Oberon(a)lists.inf.ethz.ch mailing list for ETH Oberon and related systems > > https://lists.inf.ethz.ch/mailman/listinfo/oberon > > > > > > ------------------------------ > > -- > Oberon(a)lists.inf.ethz.ch mailing list for ETH Oberon and related systems > https://lists.inf.ethz.ch/mailman/listinfo/oberon > > > End of Oberon Digest, Vol 114, Issue 7 > ************************************** >

3 2

PNG Encoder codec
by Zdenek 03 Dec '13

03 Dec '13

Hello I have noticed that as of AOS revision 5406 there is no encoder for PNG images. I can open PNG image with PNG decoder but not save it. I need encoder for some lossless RGB format. There is encoder for BMP but it produces something like 12MB image compared to compressed 2 MB PNG file. Another encoder for GIF is present but it converts to bitmap file and I need RGB. Therefore my question if someone is working on PNG encoder and if we can expect it in next aos revision? Zdenek

2 2

linux executable
by Zdenek 25 Nov '13

25 Nov '13

Hello, is it possible in aos to create standalone executable for linux without need of running "aos -x ... " ? I mean like compiling module test.Mod in aos and then running executable test in any linux shell without aos installed. Zdenek

3 2

nomenclature of fonts
by peasthope＠shaw.ca 06 Nov '13

06 Nov '13

OType.Text states '... <file.TTF> is the filename of the OpenType font file, <name> is the name of the font as Oberon will see it, <style> is a single letter (usually "i", "b" or "m"), <size> is an integer and dev is one of "Scn", "Pr2", "Pr3" or "Pr6". An example would be: OTFonts.Make ArialBold.TTF Arial b 8 10 12 14 16 20 24 Scn Pr3 ~ which creates all standard sizes of the Arial_Bold font for screen and printer at 300 dots per inch, from "Arial8b.Scn.Fnt" to "Arial24b.Pr3.Fnt".' In Oberon8.Md6.Fnt, what does Md6 refer to? Thanks, ... Peter E. -- 123456789 123456789 123456789 123456789 123456789 123456789 123456789 12 Tel +13606390202 Bcc: peasthope at shaw.ca http://carnot.yi.org/

1 0