May 2015 - Oberon - mailman3.inf.ethz.ch

New version of Regul (and other tools)
by Gérard Meunier 03 Jun '15

03 Jun '15

Hello List, I have a new version of Regul (Regular Expression Finder) and of other tools, which work well in Olr. Where can I publish them? Gérard

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Re (2): Re (2): Project Oberon Hardware
by peter＠easthope.ca 31 May '15

31 May '15

> Is Meunier's RX viable now? Worked well in NO alpha. Never tried it elsewhere. Peter E. -- 123456789 123456789 123456789 123456789 123456789 123456789 123456789 12 Tel +13606390202 http://easthope.ca/peter.html Bcc: peter at easthope. ca

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Re (2): Revision numbers in A2 repository.
by peter＠easthope.ca 30 May '15

30 May '15

From: Felix Friedrich <felix.friedrich(a)inf.ethz.ch> Date: Tue, 26 May 2015 09:30:29 +0200 > apparently you have not relocated your SVN to the new location. The log > entry at the last revision (5906) says: > REPOSITORY HAS MOVED -- PLEASE RELOCATE TO > https://svn.inf.ethz.ch/svn/lecturers/a2 Thanks. I must learn more about svn, ... P. -- 123456789 123456789 123456789 123456789 123456789 123456789 123456789 12 Tel +13606390202 http://easthope.ca/peter.html Bcc: peter at easthope. ca

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Re: [Oberon] oberonnet of things
by Frans-Pieter Vonck 29 May '15

29 May '15

Ah, that is interesting. I'm curious how the idea of registers are implemented in the Oberon Project. I will look into the references you gave me. Thanks and success with your project. Greets, F.P. > FP > > In fact I will write everything in Oberon-07. > > Today, the RISC5 architecture foresees a mechanism to write contents to and > read contents from actual HW by using so called "IO addresses". "IO addresses" look like ordinary addresses but don't address the "normal" SRAM > memory but IO devices with special meaning. > > E.g. if I read the contents at address -64, I get the current > milliseconds. > If I read the contents at address -36, I will get the mouse coordinates. Niklaus Wirth defined 10 special IO addresses in RISC5. In chapter 17 of his > book he documented 8 of them. > > As I don't want to modify the existing behavior of the RISC5, my intention is to extend the IO addresses by one additional address, namely -24. Simply said: By writing to this address with "SYSTEM.PUT(-24, x)" I will put > one byte on the Ethernet interface. When I read from this address with "SYSTEM.GET(-24, x)", I will get one byte from the Ethernet interface. The actual Oberon code to drive the wiz550io is a little more complex than that but to give you an idea. > > Now to make this happen I need some "HW glue logic" to map the Oberon address -24 to the underlying HW mechanism of the Pipistrello board (FPGA) and the wiz550io. This HW behavior is defined in Verilog; I hence adopt "RISC5Top.v" accordingly. > > That's in a nutshell what I intend to do. > > br > Jörg > > -----Original Message----- > From: Frans-Pieter Vonck [mailto:fp@vonck.nl] > Sent: Dienstag, 26. Mai 2015 19:37 > To: oberon(a)lists.inf.ethz.ch > Subject: Re: [Oberon] oberonnet of things > > Hi Jorg, > > that is very encouraging. > I've found a verilog fpga ethernet experiment: > http://www.fpga4fun.com/10BASE-T2.html > I do not know if this is a way to go but is it possible to connect project oberon to these hdl drivers? > > This makes me wondering. I remember the clean code of the original project oberon where the hardware was addressed through its registers. Most of the code was still in Oberon. > Wirth mentioned that using assembly has to be avoided. > Is verilog the new assembly? > > I remember from the Astrobe forum that someone mentioned he had written a ethernet drive in Oberon07 for the Wiz550.(Chris?) > > Greets, > F.P. > >> Hi FP >> >> I'm just working on it. >> I bought the wiz550io and connected it already successfully to the > Pipistrello. >> I will write an additional SPI driver (not to touch the existing one in > case >> somebody wants to use the original Net protocol in addition to Ethernet > and >> to allow for higher speeds than the existing SPI driver) >> As I do it in my spare time allow me some time... >> >> The applications on top however (FTP, Mail, ...) have to be written by > you. >> >> br >> Jörg >> >> -----Original Message----- >> From: Frans-Pieter Vonck [mailto:fp@vonck.nl] >> Sent: Dienstag, 26. Mai 2015 15:22 >> To: oberon(a)lists.inf.ethz.ch >> Subject: [Oberon] oberonnet of things >> >> Hello, >> >> a few considerations. >> I looked at the net module of project oberon. >> Is it true that there is still no ethernet (tcp-ip) module written? I > know there is one in AOS, but that only interfaces with specific ethernetcards. >> >> I have to say, although from a didactical point of view the SCC network > module is very interesting, not being connected to the internet via UDP, is a show stopper for me. >> And it holds me back from promoting it as a 'first programming language' > at the gymnasium I teach. I want to use Oberon in my lessons but are forced to advice Python because of the lack of ethernet libraries.* >> >> >> Has someone interfaced the ethernet linux library to the oberon system > or language? Is there some interest in community to do this for the OLR or OBC? >> >> >> Greets, >> Frans-Pieter Vonck >> >> * I read a recent blog of Jan Verhoeven where he demonstrates the use of > the the 'foreign module' in Modula-2. With the Mocka under linux x86 it is easy to import libraries. >> http://fruttenboel.verhoeven272.nl/mocka/unix2.html >> >> >> -- >> 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 >

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Re: [Oberon] oberonnet of things
by peter＠easthope.ca 26 May '15

26 May '15

Frans-Pieter, From: Frans-Pieter Vonck <fp(a)vonck.nl> Date: Tue, 26 May 2015 15:22:11 +0200 > I looked at the net module of project oberon. > ... holds me back from promoting it as a 'first programming language' > at the gymnasium I teach. Probably your gymnasium has at least one computer laboratory containing about 40 PCs. Most households in the first world have at least one PC. Therefore, PC Native Oberon should be a feasible choice for the present. A set of exercises for your students is immediately evident. Take any module containing LOOP and EXIT. Rewrite without these statements. Compile the new version. Regards, ... Peter E. -- 123456789 123456789 123456789 123456789 123456789 123456789 123456789 12 Tel +13606390202 http://easthope.ca/peter.html Bcc: peter at easthope. ca

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Re: [Oberon] oberonnet of things
by Frans-Pieter Vonck 26 May '15

26 May '15

Hi Jorg, that is very encouraging. I've found a verilog fpga ethernet experiment: http://www.fpga4fun.com/10BASE-T2.html I do not know if this is a way to go but is it possible to connect project oberon to these hdl drivers? This makes me wondering. I remember the clean code of the original project oberon where the hardware was addressed through its registers. Most of the code was still in Oberon. Wirth mentioned that using assembly has to be avoided. Is verilog the new assembly? I remember from the Astrobe forum that someone mentioned he had written a ethernet drive in Oberon07 for the Wiz550.(Chris?) Greets, F.P. > Hi FP > > I'm just working on it. > I bought the wiz550io and connected it already successfully to the Pipistrello. > I will write an additional SPI driver (not to touch the existing one in case > somebody wants to use the original Net protocol in addition to Ethernet and > to allow for higher speeds than the existing SPI driver) > As I do it in my spare time allow me some time... > > The applications on top however (FTP, Mail, ...) have to be written by you. > > br > Jörg > > -----Original Message----- > From: Frans-Pieter Vonck [mailto:fp@vonck.nl] > Sent: Dienstag, 26. Mai 2015 15:22 > To: oberon(a)lists.inf.ethz.ch > Subject: [Oberon] oberonnet of things > > Hello, > > a few considerations. > I looked at the net module of project oberon. > Is it true that there is still no ethernet (tcp-ip) module written? I know there is one in AOS, but that only interfaces with specific ethernetcards. > > I have to say, although from a didactical point of view the SCC network module is very interesting, not being connected to the internet via UDP, is a show stopper for me. > And it holds me back from promoting it as a 'first programming language' at the gymnasium I teach. I want to use Oberon in my lessons but are forced to advice Python because of the lack of ethernet libraries.* > > > Has someone interfaced the ethernet linux library to the oberon system or language? Is there some interest in community to do this for the OLR or OBC? > > > Greets, > Frans-Pieter Vonck > > * I read a recent blog of Jan Verhoeven where he demonstrates the use of the the 'foreign module' in Modula-2. With the Mocka under linux x86 it is easy to import libraries. > http://fruttenboel.verhoeven272.nl/mocka/unix2.html > > > -- > Oberon(a)lists.inf.ethz.ch mailing list for ETH Oberon and related systems https://lists.inf.ethz.ch/mailman/listinfo/oberon >

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Exported procedures in object file
by oberon＠moravcik.info 26 May '15

26 May '15

Hi, I have a quick question here, hopefully will get quick answer: How do I write out exported procedures with parameters from object file using AOS ? Thanks in advance Zdenek

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oberonnet of things
by Frans-Pieter Vonck 26 May '15

26 May '15

Hello, a few considerations. I looked at the net module of project oberon. Is it true that there is still no ethernet (tcp-ip) module written? I know there is one in AOS, but that only interfaces with specific ethernetcards. I have to say, although from a didactical point of view the SCC network module is very interesting, not being connected to the internet via UDP, is a show stopper for me. And it holds me back from promoting it as a 'first programming language' at the gymnasium I teach. I want to use Oberon in my lessons but are forced to advice Python because of the lack of ethernet libraries.* Has someone interfaced the ethernet linux library to the oberon system or language? Is there some interest in community to do this for the OLR or OBC? Greets, Frans-Pieter Vonck * I read a recent blog of Jan Verhoeven where he demonstrates the use of the the 'foreign module' in Modula-2. With the Mocka under linux x86 it is easy to import libraries. http://fruttenboel.verhoeven272.nl/mocka/unix2.html

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Revision numbers in A2 repository.
by peter＠easthope.ca 26 May '15

26 May '15

When "svn update source" finishes it reports "Updated to revision 5906." Whereas https://trac.inf.ethz.ch/trac/lecturers/a2/browser/trunk shows source 6090 I've read http://svnbook.red-bean.com/en/1.7/svn.basic.in-action.html#svn.basic.in-ac… and still don't recognize why there are two different revision numbers. A hint will be appreciated. Thanks, ... Peter E. -- 123456789 123456789 123456789 123456789 123456789 123456789 123456789 12 Tel +13606390202 http://easthope.ca/peter.html Bcc: peter at easthope. ca

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Re (2): Oberon-specific Spartan-6 FPGA board
by peter＠easthope.ca 25 May '15

25 May '15

Hello Chris, > I was thinking the following connectors on the back: KBD, Mouse, HDMI, > VGA, USB, Power And the following on the front: Power on/off switch, > power LED, full-size SD card, 8 LED, 8 dip-switches. A connection for serial tracing? RS-232 _via_ a DE-9 connector? Thanks, ... Peter E. -- 123456789 123456789 123456789 123456789 123456789 123456789 123456789 12 Tel +13606390202 http://easthope.ca/peter.html Bcc: peter at easthope. ca

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