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Re: multi-threading in Forth?

From mhx@iae.nl (Marcel Hendrix)
Subject Re: multi-threading in Forth?
Newsgroups comp.lang.forth
Message-ID <86181898958436@frunobulax.edu> (permalink)
Date 2011-08-05 17:17 +0200
References <slrnj3ls85.27m.zbigniew2011REMOVE@Tichy.myhome.org>
Organization SunSITE.dk - Supporting Open source

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Zbiggy <zbigniew2011REMOVE@gmail.REMOVE.com> writes Re: multi-threading in Forth?

[..]
> I think, that "rule" doesn't necessarily mean formal requirement of any
> standard committee - it can be just "traditional solution", present and known
> since 30 years, if it still does its work with no problems. 

But it generally doesn't (have no problems), and never did. This means that 
it is not a portable technique, or one that can be made portable, and that is 
the reason the Standard does not mandate it (The Standard's goal is not to 
define better Forths).

> So if I'm trying to use a compiler written for some "exotic" hardware, yes:
> I can expect the presence of some non-standard solution. But why in the case
> of compiler written for most popular hardware? There surely is some
> rationale behind it, although IMHO if such change won't give any tremendous
> profits (much greater efficiency?), perhaps it's better to _not_ introduce
> it, because most programmers will expect to find the things working "old way".

There might be some misunderstanding here. iForth DOES use a return stack, there
are real return addresses on it, and you can manipulate these if you know what 
you are doing (and know about [ -opt ]). 

Unmanaged access to return stack items that weren't put there by the 
program itself will lead to problems. The reason for this is that R> >R R@ etc. 
are first inlined and then optimized away, as are other short definitions. For 
the purposes and target audience of iForth this is many times more important than 
the benefits of return stack manipulation (which is still possible by either 
using [ -opt ] or by redefining R> >R etc.)

-marcel

BTW: Yes, iForth does/did interface to both Tcl and Tk. However, the ActiveState
implementation I just now tried it with on Windows 7 seems to have a broken pipe 
interface (older implementations worked).

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Thread

multi-threading in Forth? Michael L Gassanenko <m_l_g3@yahoo.com> - 2011-08-02 02:01 -0700
  Re: multi-threading in Forth? mhx@iae.nl (Marcel Hendrix) - 2011-08-02 11:22 +0200
    Re: multi-threading in Forth? Zbiggy <zbigniew2011REMOVE@gmail.REMOVE.com> - 2011-08-02 15:26 +0200
    Re: multi-threading in Forth? mlg3 <m_l_g3@yahoo.com> - 2011-08-04 01:06 +0400
      Re: multi-threading in Forth? mhx@iae.nl (Marcel Hendrix) - 2011-08-04 06:36 +0200
        Re: multi-threading in Forth? Mark Wills <markrobertwills@yahoo.co.uk> - 2011-08-04 08:25 +0100
          Re: multi-threading in Forth? coos haak <chforth@hccnet.nl> - 2011-08-04 13:42 +0200
            Re: multi-threading in Forth? Zbiggy <zbigniew2011REMOVE@gmail.REMOVE.com> - 2011-08-04 14:35 +0200
              Re: multi-threading in Forth? Elizabeth D Rather <erather@forth.com> - 2011-08-04 08:30 -0500
                Re: multi-threading in Forth? Zbiggy <zbigniew2011REMOVE@gmail.REMOVE.com> - 2011-08-04 15:38 +0200
                Re: multi-threading in Forth? Elizabeth D Rather <erather@forth.com> - 2011-08-04 09:12 -0500
                Re: multi-threading in Forth? Mark Wills <markrobertwills@yahoo.co.uk> - 2011-08-04 16:50 +0100
                Re: multi-threading in Forth? mlg3 <m_l_g3@yahoo.com> - 2011-08-04 23:52 +0400
                Re: multi-threading in Forth? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2011-08-05 08:50 -0500
                Re: multi-threading in Forth? Mark Wills <markrobertwills@yahoo.co.uk> - 2011-08-04 16:49 +0100
                Re: multi-threading in Forth? Zbiggy <zbigniew2011REMOVE@gmail.REMOVE.com> - 2011-08-04 19:23 +0200
                Re: multi-threading in Forth? Elizabeth D Rather <erather@forth.com> - 2011-08-05 10:57 -0500
              Re: multi-threading in Forth? stephenXXX@mpeforth.com (Stephen Pelc) - 2011-08-04 14:16 +0000
                Re: multi-threading in Forth? Mark Wills <markrobertwills@yahoo.co.uk> - 2011-08-04 16:51 +0100
                Re: multi-threading in Forth? stephenXXX@mpeforth.com (Stephen Pelc) - 2011-08-04 17:14 +0000
                Re: multi-threading in Forth? "Rod Pemberton" <do_not_have@noavailemail.cmm> - 2011-08-06 03:46 -0400
                Re: multi-threading in Forth? Zbiggy <zbigniew2011REMOVE@gmail.REMOVE.com> - 2011-08-04 19:11 +0200
                Re: multi-threading in Forth? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2011-08-05 08:43 -0500
                Re: multi-threading in Forth? mlg3 <m_l_g3@yahoo.com> - 2011-08-06 01:49 +0400
                Re: multi-threading in Forth? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2011-08-06 03:13 -0500
                Re: multi-threading in Forth? mlg3 <m_l_g3@yahoo.com> - 2011-08-09 04:41 +0400
                Re: multi-threading in Forth? mlg3 <m_l_g3@yahoo.com> - 2011-08-09 11:01 +0400
                Re: multi-threading in Forth? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2011-08-10 09:02 -0500
                Re: multi-threading in Forth? mlg3 <m_l_g3@yahoo.com> - 2011-08-11 01:10 +0400
                Re: multi-threading in Forth? Ouatu Bogdan <ouatubi@gmail.com> - 2011-08-10 13:22 +0000
                Re: multi-threading in Forth? Zbiggy <zbigniew2011REMOVE@gmail.REMOVE.com> - 2011-08-06 01:12 +0200
                Re: multi-threading in Forth? coos haak <chforth@hccnet.nl> - 2011-08-06 02:37 +0200
                Re: multi-threading in Forth? Zbiggy <zbigniew2011REMOVE@gmail.REMOVE.com> - 2011-08-06 12:54 +0200
                Re: multi-threading in Forth? alextangent <blog@rivadpm.com> - 2011-08-06 12:15 +0100
                Re: multi-threading in Forth? Elizabeth D Rather <erather@forth.com> - 2011-08-05 22:23 -0500
                Re: multi-threading in Forth? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2011-08-06 03:17 -0500
                Re: multi-threading in Forth? Julian Fondren <ayrnieu@gmail.com> - 2011-08-05 19:02 -0500
                Re: multi-threading in Forth? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2011-08-06 04:01 -0500
                return-address manipulation (was: multi-threading in Forth?) anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2011-08-06 16:35 +0000
                Re: return-address manipulation Gerry Jackson <gerry@jackson9000.fsnet.co.uk> - 2011-08-07 11:45 +0100
                Re: return-address manipulation Josh Grams <josh@qualdan.com> - 2011-08-08 09:40 +0000
                Re: return-address manipulation Gerry Jackson <gerry@jackson9000.fsnet.co.uk> - 2011-08-08 12:17 +0100
                Re: return-address manipulation Josh Grams <josh@qualdan.com> - 2011-08-08 12:29 +0000
                Re: return-address manipulation mlg3 <m_l_g3@yahoo.com> - 2011-08-09 03:54 +0400
                Re: return-address manipulation mlg3 <m_l_g3@yahoo.com> - 2011-08-09 02:52 +0400
                Re: return-address manipulation Gerry Jackson <gerry@jackson9000.fsnet.co.uk> - 2011-08-09 20:54 +0100
                Re: return-address manipulation mlg3 <m_l_g3@yahoo.com> - 2011-08-11 09:00 +0400
                Re: return-address manipulation Andrew Haley <andrew29@littlepinkcloud.invalid> - 2011-08-09 14:49 -0500
                Re: return-address manipulation anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2011-08-10 09:03 +0000
                Re: return-address manipulation Andrew Haley <andrew29@littlepinkcloud.invalid> - 2011-08-10 05:13 -0500
                Re: return-address manipulation mlg3 <m_l_g3@yahoo.com> - 2011-08-11 09:24 +0400
                Re: return-address manipulation Andrew Haley <andrew29@littlepinkcloud.invalid> - 2011-08-11 04:09 -0500
                Re: return-address manipulation mlg3 <m_l_g3@yahoo.com> - 2011-08-11 09:36 +0400
                Re: return-address manipulation mlg3 <m_l_g3@yahoo.com> - 2011-08-11 09:54 +0400
                Re: return-address manipulation Andrew Haley <andrew29@littlepinkcloud.invalid> - 2011-08-11 04:16 -0500
                Re: multi-threading in Forth? Julian Fondren <ayrnieu@gmail.com> - 2011-08-07 01:43 -0500
                Re: multi-threading in Forth? Spam@ControlQ.com - 2011-08-06 12:36 -0400
                Re: multi-threading in Forth? Julian Fondren <ayrnieu@gmail.com> - 2011-08-07 01:13 -0500
                Re: multi-threading in Forth? mlg3 <m_l_g3@yahoo.com> - 2011-08-09 02:35 +0400
                Re: multi-threading in Forth? Albert van der Horst <albert@spenarnc.xs4all.nl> - 2011-08-07 10:08 +0000
                Re: multi-threading in Forth? Josh Grams <josh@qualdan.com> - 2011-08-07 13:45 +0000
                Re: multi-threading in Forth? mhx@iae.nl (Marcel Hendrix) - 2011-08-05 17:17 +0200
                Re: multi-threading in Forth? Zbiggy <zbigniew2011REMOVE@gmail.REMOVE.com> - 2011-08-05 19:23 +0200
                Re: multi-threading in Forth? Elizabeth D Rather <erather@forth.com> - 2011-08-05 10:53 -0500
                Re: multi-threading in Forth? Zbiggy <zbigniew2011REMOVE@gmail.REMOVE.com> - 2011-08-05 19:18 +0200
                Re: multi-threading in Forth? Elizabeth D Rather <erather@forth.com> - 2011-08-06 09:59 -0500
                Re: multi-threading in Forth? Spam@ControlQ.com - 2011-08-06 12:28 -0400
                Re: multi-threading in Forth? Albert van der Horst <albert@spenarnc.xs4all.nl> - 2011-08-06 11:29 +0000
            Re: multi-threading in Forth? Mark Wills <markrobertwills@yahoo.co.uk> - 2011-08-04 16:47 +0100
              Re: multi-threading in Forth? Julian Fondren <ayrnieu@gmail.com> - 2011-08-04 13:54 -0500
              Re: multi-threading in Forth? coos haak <chforth@hccnet.nl> - 2011-08-04 22:02 +0200
  Re: multi-threading in Forth? Elizabeth D Rather <erather@forth.com> - 2011-08-02 08:23 -0500
    Re: multi-threading in Forth? Zbiggy <zbigniew2011REMOVE@gmail.REMOVE.com> - 2011-08-02 15:30 +0200
      Re: multi-threading in Forth? Elizabeth D Rather <erather@forth.com> - 2011-08-02 08:53 -0500
        Re: multi-threading in Forth? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2011-08-03 03:53 -0500

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