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

An Oberon7 compiler for Linux.
by Andreas Pirklbauer 14 Jul '16

14 Jul '16

Srinivas, obc is very nice piece work! As for the modules Kernel.Mod, FileDir.Mod, Files.Mod and Modules.Mod, you should note that these 4 modules constitute the so-called Oberon "inner core". The inner core must be loaded in pre-linked format onto the disk's boot area from where it is loaded (at boot time) by the Oberon boot loader (BootLoader.Mod) byte for byte into main memory. Then the boot loader passes control to its top module (module Modules). So, if you really want to be complete, you may also want port the "linker" (a program that pre-links the 4 modules of the inner core and makes a valid boot file from them) and the "builder" (a program that transfers the boot file to the disk's boot area) from https://github.com/andreaspirklbauer/Oberon-building-tools to run on Linux (or MacOS) as well. Then you'd have a true cross-compile *and* bootstrap environment running on Linux. Andreas Pirklbauer ----------------------------------------------------------- Srinivas Nayak sinu.nayak2001 at gmail.com Thu Jul 14 10:54:51 CEST 2016Previous message: [Oberon] An Oberon7 compiler for Linux.Next message: [Oberon] An Oberon7 compiler for Linux.Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]Many many thanks to my Oberon friends,for their kind help and support. How I use it: Using this compiler, first I compile Kernel.Mod.txt, FileDir.Mod.txt etc.I gather the *.smb file and *.rsc file in my "obc" folder.Now my "obc" folder acts as an Oberon development environment!I can now create/modify/compile any Oberon module on Linux.And finally I can send the .Mod, .smb and .rsc file to Simulator to run it! I hope, people like me, who are not having much of Oberon experience,will find it easy to develop their Oberon skills using this compiler. With thanks and best regards, Yours sincerely,Srinivas Nayak Home: http://www.mathmeth.com/sn/Blog: http://srinivas-nayak.blogspot.in/ On 07/14/2016 01:45 PM, Srinivas Nayak wrote:> Dear All,>> Here is an Oberon7 compiler for Linux.> https://github.com/snayaksnayak/obc>> Now it acts like a cross compiler; running on x86 Linux> and generating code for FPGA RISC-5 processor.>> You can use this to compile Kernel.Mod.txt, FileDir.Mod.txt etc. on Linux;> and use the generated Kernel.smb, Kernel.rsc, FileDir.smb, FileDir.rsc etc.> on FPGA Oberon.>> [Initially tested OK on Peter De Wachter's Oberon Simulator]>> Your suggestions, opinions, bug reports are most welcome.> I shall be very happy if Paul mentions this github link on his website.>> :-)>>>> With thanks and best regards,>> Yours sincerely,> Srinivas Nayak

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An Oberon7 compiler for Linux.
by Srinivas Nayak 14 Jul '16

14 Jul '16

Dear All, Here is an Oberon7 compiler for Linux. https://github.com/snayaksnayak/obc Now it acts like a cross compiler; running on x86 Linux and generating code for FPGA RISC-5 processor. You can use this to compile Kernel.Mod.txt, FileDir.Mod.txt etc. on Linux; and use the generated Kernel.smb, Kernel.rsc, FileDir.smb, FileDir.rsc etc. on FPGA Oberon. [Initially tested OK on Peter De Wachter's Oberon Simulator] Your suggestions, opinions, bug reports are most welcome. I shall be very happy if Paul mentions this github link on his website. :-) 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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oberonstation vs. a $9 computer
by skulski＠pas.rochester.edu 14 Jul '16

14 Jul '16

Lars: It is sort of funny that one can use the low price as an argument. How much do you value your time? Let's say it is $5 per hour, way below minimum wage. How much time will you spend on getting anything done with any piece of hardware, be it Arduino, RPi, Beagle Bone, or Oberon Station? Are you going to achieve anything meaningful in less than 10 hours? If so then I will consider hiring you for $50 per hour. The low price does indeed matter if you will use the hardware in a finished product. They are talking of a disposable computer. If you are going to basically throw it away after a single use (provided that you environmental soul lets you do it), then indeed $9 matters. But if you are going to do any development or experimentation with the HW, then you will likely spend hundreds of hours doing so. Then it does not matter if you invest $9, $90, or even $900 into your hardware. Almost any such amount is dwarfed by the cost of your time. Oberon Station is a development platform. The valid question is "development of what?". The initial dollar investment in the development hardware is not that important in this case. W. > The oberon station is tempting, but with Raspberry Pi at $35 > or the C.H.I.P computer for $9.00... that has USB, > and WIFI that works like any wifi, the oberon station > is really priced way out of the market. If the > oberonstation was around $50 more people would buy. > How can you possibly compete with the C.H.I.P. > for $9.00.

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Data transfer; was How to save a viewer's text as a file
by peter＠easthope.ca 13 Jul '16

13 Jul '16

>From skulski at pas.rochester.edu Wed Jul 13 02:10:00 2016 > On a more general note, what are the means of easily and efficiently > exchanging data between the FPGA Oberon and the workstation world? > ... Trickling the file through the wireless or serial is not quite adequate ... >From joerg.straube at iaeth.ch Tue Feb 16 11:00:06 2016 > TCP/IP networking will come this summer, but still based on RISC5 :-) Wojtek, might this TCP/IP networking be relevant? If so, help with documentation, coding or testing might hasten progress. Regards, ... Lyall E. -- 123456789 123456789 123456789 123456789 123456789 123456789 123456789 Tel +1 360 639 0202 http://easthope.ca/Peter.html Bcc: peter at easthope. ca

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HOW2 get output of ORTool.DecSym and ORTool.DecObj in a file.
by Srinivas Nayak 13 Jul '16

13 Jul '16

Dear All, I see two valuable commands inside ORTool.Mod.txt, ORTool.DecSym and ORTool.DecObj. I used them as follows: ORTool.DecSym Files.smb ~ ORTool.DecObj Files.rsc ~ Beautifully they present their desired output. :-) However, instead of reading the output from System.Log, I would like to get the output collected in a file. So that, I can easily take the generated file out from Oberon Simulator (Peter De Wachter's), and read/analyze it on my Linux desktop. How can the code of ORTool.DecSym and ORTool.DecObj be changed, so that they can produce their output collected in a file? Confessions: 1. You can suggest me to copy paste the output from System.Log to a file. But I find it very hard, because output is very long and copy-paste it needs a special trick. 2. I find it easier to use pcreceive.sh and pcsend.sh to send files in/out of Oberon Simulator, and to modify code/text on Linux Desktop. 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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HOW2 debug ORP.Mod inside Oberon.
by Srinivas Nayak 13 Jul '16

13 Jul '16

Dear All, Is there a way to debug a program inside Oberon? I want to check how ORP proceeds through a case. When code is little unfamiliar, I thought, debugging would aid to understand. 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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Two observations on Oberon Simulator
by Srinivas Nayak 13 Jul '16

13 Jul '16

Dear Peter and Others, Here are two observations: 1. --fullscreen works, but inside fullscreen, Oberon is presented in almost 70% of the screen. Is there a way, it can use all available space on left and right side? By the way, on Linux, how to come out of this fullscreen mode? 2. --size <width>x<height> seems to not work. It presents a screen with white dots. May be the custom size stretches/shrinks the actual size without aspect ratio. How to correct it? 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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Clean set of source files
by Srinivas Nayak 13 Jul '16

13 Jul '16

Dear All, Problem seen: I am using Peter De Wachter's Oberon RISC Emulator on Linux. I am trying to compile the compiler itself. Found that ORP.Mod.txt gives a TRAP 4 at pos 6262, when compiled with the compiler available in RISC.img. I collected all these things from http://www.projectoberon.com My interest: I am trying to modify the compiler code and experiment. While compiling my modified compiler, I need to compare, how the compiler compiles itself and how it compiles my version. Also, I would like to compile and test Kernel.Mod etc. with my modified compiler. I am sure, I may make a mess of it while simultaneously learning and modifying code. If I make a mess of it, I would like to revert back to initial clean state. Help needed: Where can I find the latest, cleanly compiling, source code for the Oberon system where I can compile the compiler itself and then compile the rest of the modules starting from Kernel.Mod? It would be great if the RISC.img itself is created from this clean set of files. Possible solution: I hope, such a clean set of files would be there, if any of us have built the RISC.img compiling everything from scratch recently. 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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Doubt on code generated with Oberon Simulator.
by Srinivas Nayak 13 Jul '16

13 Jul '16

Dear All, I use Peter De Wachter's Oberon Simulator on Linux. I took the latest compiler code from www.projectoberon.com. I compiled the latest compiler (ORS, ORB, ORG, ORP). Using the latest compiler, I compiled latest Files.Mod.txt. It gave Files.rsc. Now I see, Files.Mod.txt has 8 calls to NEW(). [1st NEW at pos=3022, 2nd NEW at pos=3241, 3rd NEW at pos=3592, ...] ORG.Mod.txt says, PROCEDURE New*(VAR x: Item); BEGIN loadAdr(x); loadTypTagAdr(x.type.base); Trap(7, 0); RH := 0; invalSB END New; PROCEDURE Trap(cond, num: LONGINT); BEGIN Put3(BLR, cond, ORS.Pos()*100H + num*10H + MT) END Trap; It seems, from inside Trap(), compiler should generate the opcode 0xD70BCE0C (Pos*256+num*16+MT = 3022*256+0*16+12 = 0x0BCE0C) 0xD70CA90C (Pos*256+num*16+MT = 3241*256+0*16+12 = 0x0CA90C) 0xD70E080C (Pos*256+num*16+MT = 3592*256+0*16+12 = 0x0E080C) ... However, Files.rsc contains only 0xD700000C 0xD700000C 0xD700000C ... That means, Trap will not be able to report the position at run time! I have no real Oberon hardware. Kindly let me know if your latest Files.rsc contains only 0xD700000C corresponding to each NEW or not. I shall be grateful, if I can get the latest Files.rsc from the latest native Oberon. [By latest native Oberon, I mean FPGA Oberon update of 4 July 2016 running on real FPGA hardware.] 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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HOW2 go on-line with LinuxAos?
by eas lab 12 Jul '16

12 Jul '16

Old ETHO users can't salvage many of their leaned reflexes to use on LinuxAos. The MailClient looks interesting, especially if it can handle TTL(?)TSL to escape the cursed web-based gmail. ETHO for linux automatically connects to the underlying networking system, so that all internet facilities are immediately available. What is the recommended check/comfirm-1, check/comfirm-2,.. sequence to get on-line with LinuxAos? == Chris Glur. PS. LinuxAos' syntax coloring is very impressive.

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