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Groups > comp.lang.forth > #59509

Re: Would ?EXIT work in all ANS-Forth systems?

From anton@mips.complang.tuwien.ac.at (Anton Ertl)
Newsgroups comp.lang.forth
Subject Re: Would ?EXIT work in all ANS-Forth systems?
Date 2017-05-18 15:41 +0000
Organization Institut fuer Computersprachen, Technische Universitaet Wien
Message-ID <2017May18.174156@mips.complang.tuwien.ac.at> (permalink)
References (6 earlier) <W6mdnQe9aam6g4bEnZ2dnUU7-UnNnZ2d@supernews.com> <2017May16.183409@mips.complang.tuwien.ac.at> <V_SdnQBzw5l8pIbEnZ2dnUU7-dvNnZ2d@supernews.com> <2017May17.181425@mips.complang.tuwien.ac.at> <dLednZEUu6ub_oDEnZ2dnUU7-aPNnZ2d@supernews.com>

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Andrew Haley <andrew29@littlepinkcloud.invalid> writes:
>Anton Ertl <anton@mips.complang.tuwien.ac.at> wrote:
>> Or, alternatively, you use THROW's ability to clean up all the stacks:
>> 
>> [: 2dup check-something ?lthrow
>>   dup >r check-something-else ?lthrow
>>   2dup fdup check-yet-another-thing ?throw
>>   do the thing that depends on these conditions 
>>   clean up the stacks
>> ;] lexec
>
>Thinking about this some more, something like
>
>: foo
>   sp@ >r
>   2dup check-something if
>     dup >r check-something-else if
>       2dup fdup check-yet-another-thing if
>         do the thing that depends on these conditions
>   then then then
>   r> sp! ;
>
>looks much better to me.  There's no need for the EXECUTE and the
>messing about with the return stack at all.

Actually, in the example above you need to clean up the return stack
as well as the FP stack and the data stack; note the >R in the second
line of my code (fourth line of your code).  And therefore the "R>
SP!"  part will fail if the first condition is true.

>  THROW is overkill for a
>job like this, surely?

Let's see: THROW does three things:

1) clean up the stacks
2) determine the dynamically enclosing CATCH
3) jump there

For this usage we need the cleanup, and we need a jump.  But yes,
point 2 above is overkill (but not particularly expensive).  We can
think about something that fits better, and I will do that below, but
THROW has the advantage that it is already standard and widely
available.

SP@ SP! are non-standard, but at least widely available.  Disadvantages:

- you also need RP@ RP! and FP@ FP! for the other stacks; and where do
  you store the original values then?

- For systems with simple compilers, SP@ SP! is cheap, but for systems
  with sophisticated compilers, it is expensive: it essentially dumbs
  down the sophisticated compiler to the level of the simple compiler
  for parts of the program, unless data-flow analysis can guarantee
  the data flow from SP@ to SP!.  CATCH and THROW are significantly
  easier to handle efficiently for a sophisticated compiler, because
  the THROW is guaranteed to clean up the stack, with no possibility
  of setting the stack pointer to an arbitrary value.

>Maybe a pair of words <MARK MARK>
>which mark and reset both stacks would be better.)

Or rather: all three stacks.  And then you do the jump part
separately, with IFs and a bunch of THENs.  Is there any circumstance
where we want to split the THENs from the MARK>?  I only can think of
a case where the THENs are not quite appropriate:

: foo
   <MARK
   2dup check-something if
     dup >r check-something-else if
       2dup fdup check-yet-another-thing if
         do the thing that depends on these conditions
         leave something on the stacks
   AHEAD THENs-for-the-IFs MARK>
     put something on the stacks to match up the success branch
   THEN ;

So the "AHEAD THENs-for-the-IFs" would be a kind of super-ELSE, but
the MARK> would still be right after these THENs.  So maybe "AHEAD
THENSs-for-the-ifs MARK>" should be combined into one word, say
CLEANUP>; then that example would become:

: foo
   <MARK
   2dup check-something if
     dup >r check-something-else if
       2dup fdup check-yet-another-thing if
         do the thing that depends on these conditions
         leave something on the stacks
   CLEANUP>
     put something on the stacks to match up the success branch
   THEN ;

A cosmetic issue: Using IF turns this conceptually (and optically, if
you use an editor with auto-indent) from a sequence (with exits) into
an if-cascade.  The reasoning for a sequence is simpler (especially if
the exits have guaranteed cleanup), but with the IFs, you have to look
at the whole thing to see that you can reason about it as a sequence.

- anton
-- 
M. Anton Ertl  http://www.complang.tuwien.ac.at/anton/home.html
comp.lang.forth FAQs: http://www.complang.tuwien.ac.at/forth/faq/toc.html
     New standard: http://www.forth200x.org/forth200x.html
   EuroForth 2017: http://www.euroforth.org/ef17/

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Thread

Would ?EXIT work in all ANS-Forth systems? lehs <skydda.barnen@gmail.com> - 2017-05-10 08:21 -0700
  Re: Would ?EXIT work in all ANS-Forth systems? Alex <alex@rivadpm.com> - 2017-05-10 16:39 +0100
    Re: Would ?EXIT work in all ANS-Forth systems? lehs <skydda.barnen@gmail.com> - 2017-05-10 08:46 -0700
    Re: Would ?EXIT work in all ANS-Forth systems? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2017-05-10 16:04 +0000
    Re: Would ?EXIT work in all ANS-Forth systems? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2017-05-11 04:22 -0500
      Re: Would ?EXIT work in all ANS-Forth systems? Alex <alex@rivadpm.com> - 2017-05-11 10:35 +0100
        Re: Would ?EXIT work in all ANS-Forth systems? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2017-05-11 05:08 -0500
          Re: Would ?EXIT work in all ANS-Forth systems? Julian Fondren <julian.fondren@gmail.com> - 2017-05-11 03:51 -0700
            Re: Would ?EXIT work in all ANS-Forth systems? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2017-05-11 07:02 -0500
            Re: Would ?EXIT work in all ANS-Forth systems? rickman <gnuarm@gmail.com> - 2017-05-13 11:55 -0400
        Re: Would ?EXIT work in all ANS-Forth systems? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2017-05-15 09:32 -0500
          Re: Would ?EXIT work in all ANS-Forth systems? Cecil Bayona <cbayona@cbayona.com> - 2017-05-15 11:56 -0500
            Re: Would ?EXIT work in all ANS-Forth systems? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2017-05-15 12:20 -0500
              Re: Would ?EXIT work in all ANS-Forth systems? Cecil Bayona <cbayona@cbayona.com> - 2017-05-15 12:31 -0500
                Re: Would ?EXIT work in all ANS-Forth systems? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2017-05-15 15:50 -0500
  Re: Would ?EXIT work in all ANS-Forth systems? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2017-05-10 16:49 +0000
    Re: Would ?EXIT work in all ANS-Forth systems? lehs <skydda.barnen@gmail.com> - 2017-05-10 12:04 -0700
  Re: Would ?EXIT work in all ANS-Forth systems? humptydumpty <ouatubi@gmail.com> - 2017-05-11 01:08 -0700
    Re: Would ?EXIT work in all ANS-Forth systems? Alex <alex@rivadpm.com> - 2017-05-11 09:13 +0100
      Re: Would ?EXIT work in all ANS-Forth systems? humptydumpty <ouatubi@gmail.com> - 2017-05-11 01:48 -0700
        Re: Would ?EXIT work in all ANS-Forth systems? Alex <alex@rivadpm.com> - 2017-05-11 09:59 +0100
  Re: Would ?EXIT work in all ANS-Forth systems? "Rudy Velthuis" <newsgroups@rvelthuis.de> - 2017-05-12 14:20 +0000
    Re: Would ?EXIT work in all ANS-Forth systems? lehs <skydda.barnen@gmail.com> - 2017-05-12 17:01 -0700
      Re: Would ?EXIT work in all ANS-Forth systems? humptydumpty <ouatubi@gmail.com> - 2017-05-12 22:18 -0700
        Re: Would ?EXIT work in all ANS-Forth systems? lehs <skydda.barnen@gmail.com> - 2017-05-13 03:09 -0700
        Re: Would ?EXIT work in all ANS-Forth systems? "HAA" <someone@microsoft.com> - 2017-05-13 21:07 +1000
        Re: Would ?EXIT work in all ANS-Forth systems? "Rudy Velthuis" <newsgroups@rvelthuis.de> - 2017-05-13 14:20 +0000
          Re: Would ?EXIT work in all ANS-Forth systems? "HAA" <someone@microsoft.com> - 2017-05-14 11:59 +1000
            Re: Would ?EXIT work in all ANS-Forth systems? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2017-05-14 09:21 -0500
              Re: Would ?EXIT work in all ANS-Forth systems? humptydumpty <ouatubi@gmail.com> - 2017-05-14 10:43 -0700
                Re: Would ?EXIT work in all ANS-Forth systems? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2017-05-14 18:35 -0500
                Re: Would ?EXIT work in all ANS-Forth systems? Lars Brinkhoff <lars.spam@nocrew.org> - 2017-05-15 07:11 +0200
                Re: Would ?EXIT work in all ANS-Forth systems? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2017-05-15 04:35 -0500
                Re: Would ?EXIT work in all ANS-Forth systems? Julian Fondren <julian.fondren@gmail.com> - 2017-05-15 03:54 -0700
                Re: Would ?EXIT work in all ANS-Forth systems? mhx@iae.nl - 2017-05-15 04:07 -0700
                Re: Would ?EXIT work in all ANS-Forth systems? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2017-05-15 06:23 -0500
                Re: Would ?EXIT work in all ANS-Forth systems? Julian Fondren <julian.fondren@gmail.com> - 2017-05-15 06:53 -0700
                Re: Would ?EXIT work in all ANS-Forth systems? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2017-05-15 09:18 -0500
                Re: Would ?EXIT work in all ANS-Forth systems? humptydumpty <ouatubi@gmail.com> - 2017-05-14 22:44 -0700
                Re: Would ?EXIT work in all ANS-Forth systems? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2017-05-15 04:16 -0500
                Re: Would ?EXIT work in all ANS-Forth systems? humptydumpty <ouatubi@gmail.com> - 2017-05-16 02:00 -0700
                Re: Would ?EXIT work in all ANS-Forth systems? humptydumpty <ouatubi@gmail.com> - 2017-05-16 02:43 -0700
                Re: Would ?EXIT work in all ANS-Forth systems? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2017-05-16 05:08 -0500
                Re: Would ?EXIT work in all ANS-Forth systems? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2017-05-16 12:11 +0000
                Re: Would ?EXIT work in all ANS-Forth systems? NN <november.nihal@gmail.com> - 2017-05-17 05:24 -0700
                Re: Would ?EXIT work in all ANS-Forth systems? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2017-05-17 07:35 -0500
                Re: Would ?EXIT work in all ANS-Forth systems? Alex <alex@rivadpm.com> - 2017-05-17 14:59 +0100
                Re: Would ?EXIT work in all ANS-Forth systems? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2017-05-17 13:30 +0000
                Re: Would ?EXIT work in all ANS-Forth systems? "HAA" <someone@microsoft.com> - 2017-05-15 11:09 +1000
                Re: Would ?EXIT work in all ANS-Forth systems? Raimond Dragomir <raimond.dragomir@gmail.com> - 2017-05-14 21:17 -0700
                Re: Would ?EXIT work in all ANS-Forth systems? Lars Brinkhoff <lars.spam@nocrew.org> - 2017-05-15 07:13 +0200
                Re: Would ?EXIT work in all ANS-Forth systems? "HAA" <someone@microsoft.com> - 2017-05-16 10:24 +1000
                Re: Would ?EXIT work in all ANS-Forth systems? humptydumpty <ouatubi@gmail.com> - 2017-05-16 01:13 -0700
                Re: Would ?EXIT work in all ANS-Forth systems? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2017-05-16 12:26 +0000
                Re: Would ?EXIT work in all ANS-Forth systems? humptydumpty <ouatubi@gmail.com> - 2017-05-17 01:58 -0700
                Re: Would ?EXIT work in all ANS-Forth systems? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2017-05-17 16:45 +0000
                Re: Would ?EXIT work in all ANS-Forth systems? obi65537@gmail.com - 2017-05-25 12:04 -0700
                Re: Would ?EXIT work in all ANS-Forth systems? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2017-05-26 10:02 +0000
                Re: Would ?EXIT work in all ANS-Forth systems? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2017-05-26 07:46 -0500
                Re: Would ?EXIT work in all ANS-Forth systems? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2017-05-26 13:53 +0000
                Re: Would ?EXIT work in all ANS-Forth systems? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2017-05-26 10:14 -0500
                Re: Would ?EXIT work in all ANS-Forth systems? Cecil Bayona <cbayona@cbayona.com> - 2017-05-26 10:16 -0500
                Re: Would ?EXIT work in all ANS-Forth systems? Raimond Dragomir <raimond.dragomir@gmail.com> - 2017-05-26 08:59 -0700
                Re: Would ?EXIT work in all ANS-Forth systems? Cecil Bayona <cbayona@cbayona.com> - 2017-05-26 11:27 -0500
                Re: Would ?EXIT work in all ANS-Forth systems? Raimond Dragomir <raimond.dragomir@gmail.com> - 2017-05-26 10:19 -0700
                Re: Would ?EXIT work in all ANS-Forth systems? Lars Brinkhoff <lars.spam@nocrew.org> - 2017-05-26 20:20 +0200
                Re: Would ?EXIT work in all ANS-Forth systems? Raimond Dragomir <raimond.dragomir@gmail.com> - 2017-05-26 21:38 -0700
                Re: Would ?EXIT work in all ANS-Forth systems? Cecil Bayona <cbayona@cbayona.com> - 2017-05-26 14:06 -0500
                Re: Would ?EXIT work in all ANS-Forth systems? Raimond Dragomir <raimond.dragomir@gmail.com> - 2017-05-26 22:00 -0700
                Re: Would ?EXIT work in all ANS-Forth systems? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2017-05-26 17:06 +0000
                Re: Would ?EXIT work in all ANS-Forth systems? hum9 <obi65537@gmail.com> - 2017-05-27 01:15 -0700
                Re: Would ?EXIT work in all ANS-Forth systems? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2017-05-28 14:17 +0000
                Re: Would ?EXIT work in all ANS-Forth systems? obi65537@gmail.com - 2017-05-29 20:30 -0700
                Re: Would ?EXIT work in all ANS-Forth systems? hum9 <obi65537@gmail.com> - 2017-05-29 21:08 -0700
                Re: Would ?EXIT work in all ANS-Forth systems? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2017-05-30 04:12 -0500
                Re: Would ?EXIT work in all ANS-Forth systems? Alex <alex@rivadpm.com> - 2017-05-30 12:44 +0100
                Re: Would ?EXIT work in all ANS-Forth systems? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2017-05-30 08:09 -0500
                Re: Would ?EXIT work in all ANS-Forth systems? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2017-05-30 14:35 +0000
                Re: Would ?EXIT work in all ANS-Forth systems? Alex <alex@rivadpm.com> - 2017-05-30 16:27 +0100
                Re: Would ?EXIT work in all ANS-Forth systems? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2017-05-31 12:16 -0500
                Re: Would ?EXIT work in all ANS-Forth systems? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2017-06-01 05:34 +0000
                Re: Would ?EXIT work in all ANS-Forth systems? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2017-06-01 02:14 -0500
                Re: Would ?EXIT work in all ANS-Forth systems? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2017-06-01 08:40 +0000
                Re: Would ?EXIT work in all ANS-Forth systems? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2017-06-01 06:14 -0500
                Re: Would ?EXIT work in all ANS-Forth systems? Alex <alex@rivadpm.com> - 2017-06-01 13:16 +0100
                Re: Would ?EXIT work in all ANS-Forth systems? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2017-06-01 07:43 -0500
                Re: Would ?EXIT work in all ANS-Forth systems? Alex <alex@rivadpm.com> - 2017-06-01 14:15 +0100
                Re: Would ?EXIT work in all ANS-Forth systems? Alex <alex@rivadpm.com> - 2017-06-02 11:49 +0100
                Re: Would ?EXIT work in all ANS-Forth systems? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2017-06-01 16:42 +0000
                Re: Would ?EXIT work in all ANS-Forth systems? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2017-06-02 03:19 -0500
                Re: Would ?EXIT work in all ANS-Forth systems? hughaguilar96@gmail.com - 2017-06-01 14:07 -0700
                Re: Would ?EXIT work in all ANS-Forth systems? Matthias Trute <matthias.trute@gmail.com> - 2017-06-02 12:26 -0700
                Re: Would ?EXIT work in all ANS-Forth systems? minforth@arcor.de - 2017-06-02 13:16 -0700
                Re: Would ?EXIT work in all ANS-Forth systems? Matthias Trute <matthias.trute@gmail.com> - 2017-06-03 01:34 -0700
                Re: Would ?EXIT work in all ANS-Forth systems? minforth@arcor.de - 2017-06-03 02:54 -0700
                Re: Would ?EXIT work in all ANS-Forth systems? hughaguilar96@gmail.com - 2017-06-01 13:53 -0700
                Re: Would ?EXIT work in all ANS-Forth systems? hughaguilar96@gmail.com - 2017-06-01 13:48 -0700
                Re: Would ?EXIT work in all ANS-Forth systems? Alex <alex@rivadpm.com> - 2017-06-01 22:31 +0100
                Re: Would ?EXIT work in all ANS-Forth systems? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2017-06-02 08:03 -0500
                Re: Would ?EXIT work in all ANS-Forth systems? albert@cherry.spenarnc.xs4all.nl (Albert van der Horst) - 2017-06-02 15:16 +0200
                Re: Would ?EXIT work in all ANS-Forth systems? Alex <alex@rivadpm.com> - 2017-06-02 14:30 +0100
                Re: Would ?EXIT work in all ANS-Forth systems? hughaguilar96@gmail.com - 2017-06-02 07:32 -0700
                Re: Would ?EXIT work in all ANS-Forth systems? Alex <alex@rivadpm.com> - 2017-06-02 18:23 +0100
                Re: Would ?EXIT work in all ANS-Forth systems? Julian Fondren <julian.fondren@gmail.com> - 2017-06-01 14:49 -0700
                Re: Would ?EXIT work in all ANS-Forth systems? minforth@arcor.de - 2017-06-01 16:05 -0700
                Re: Would ?EXIT work in all ANS-Forth systems? hughaguilar96@gmail.com - 2017-06-01 17:48 -0700
                Re: Would ?EXIT work in all ANS-Forth systems? Julian Fondren <julian.fondren@gmail.com> - 2017-06-01 18:44 -0700
                Re: Would ?EXIT work in all ANS-Forth systems? hughaguilar96@gmail.com - 2017-06-01 19:14 -0700
                Re: Would ?EXIT work in all ANS-Forth systems? Julian Fondren <julian.fondren@gmail.com> - 2017-06-01 19:54 -0700
                Re: Would ?EXIT work in all ANS-Forth systems? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2017-05-27 17:40 +0000
                WRAP...END-WRAP (was: Would ?EXIT work ...) anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2017-05-30 15:28 +0000
                Re: Would ?EXIT work in all ANS-Forth systems? "HAA" <someone@microsoft.com> - 2017-05-24 15:46 +1000
                Re: Would ?EXIT work in all ANS-Forth systems? humptydumpty <obi65537@gmail.com> - 2017-05-25 11:51 -0700
                Re: Would ?EXIT work in all ANS-Forth systems? humptydumpty <obi65537@gmail.com> - 2017-05-25 20:38 -0700
                Re: Would ?EXIT work in all ANS-Forth systems? obi65537@gmail.com - 2017-05-25 22:03 -0700
                Re: Would ?EXIT work in all ANS-Forth systems? obi65537@gmail.com - 2017-05-25 22:09 -0700
                Re: Would ?EXIT work in all ANS-Forth systems? "HAA" <someone@microsoft.com> - 2017-05-26 21:56 +1000
                Re: Would ?EXIT work in all ANS-Forth systems? Alex <alex@rivadpm.com> - 2017-05-26 13:30 +0100
                Re: Would ?EXIT work in all ANS-Forth systems? "HAA" <someone@microsoft.com> - 2017-05-27 15:04 +1000
                Re: Would ?EXIT work in all ANS-Forth systems? Alex <alex@rivadpm.com> - 2017-05-27 17:33 +0100
                Re: Would ?EXIT work in all ANS-Forth systems? "HAA" <someone@microsoft.com> - 2017-05-29 12:17 +1000
                Re: Would ?EXIT work in all ANS-Forth systems? Alex <alex@rivadpm.com> - 2017-05-29 08:42 +0100
                Re: Would ?EXIT work in all ANS-Forth systems? "HAA" <someone@microsoft.com> - 2017-05-30 11:14 +1000
                Re: Would ?EXIT work in all ANS-Forth systems? obi65537@gmail.com - 2017-05-29 20:32 -0700
                Re: Would ?EXIT work in all ANS-Forth systems? "HAA" <someone@microsoft.com> - 2017-05-30 14:40 +1000
                Re: Would ?EXIT work in all ANS-Forth systems? Alex <alex@rivadpm.com> - 2017-05-30 12:55 +0100
                Re: Would ?EXIT work in all ANS-Forth systems? "HAA" <someone@microsoft.com> - 2017-05-31 12:17 +1000
                Re: Would ?EXIT work in all ANS-Forth systems? "HAA" <someone@microsoft.com> - 2017-06-01 12:01 +1000
                Re: Would ?EXIT work in all ANS-Forth systems? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2017-06-01 02:17 -0500
                Re: Would ?EXIT work in all ANS-Forth systems? "HAA" <someone@microsoft.com> - 2017-06-01 22:09 +1000
                Re: Would ?EXIT work in all ANS-Forth systems? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2017-06-01 07:51 -0500
                Re: Would ?EXIT work in all ANS-Forth systems? Alex <alex@rivadpm.com> - 2017-06-01 14:20 +0100
                Re: Would ?EXIT work in all ANS-Forth systems? "HAA" <someone@microsoft.com> - 2017-06-02 13:09 +1000
                Re: Would ?EXIT work in all ANS-Forth systems? Alex <alex@rivadpm.com> - 2017-06-02 08:44 +0100
                Re: Would ?EXIT work in all ANS-Forth systems? obi65537@gmail.com - 2017-06-02 11:05 -0700
                Re: Would ?EXIT work in all ANS-Forth systems? Alex <alex@rivadpm.com> - 2017-06-02 19:34 +0100
                Re: Would ?EXIT work in all ANS-Forth systems? "HAA" <someone@microsoft.com> - 2017-06-03 14:29 +1000
                Re: Would ?EXIT work in all ANS-Forth systems? Julian Fondren <julian.fondren@gmail.com> - 2017-06-02 21:54 -0700
                Re: Would ?EXIT work in all ANS-Forth systems? "HAA" <someone@microsoft.com> - 2017-06-04 22:52 +1000
                Re: Would ?EXIT work in all ANS-Forth systems? Julian Fondren <julian.fondren@gmail.com> - 2017-06-02 22:24 -0700
                Re: Would ?EXIT work in all ANS-Forth systems? Gerry Jackson <gerry@jackson9000.fsnet.co.uk> - 2017-06-03 07:34 +0100
                Re: Would ?EXIT work in all ANS-Forth systems? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2017-06-03 08:39 +0000
                Re: Would ?EXIT work in all ANS-Forth systems? Gerry Jackson <gerry@jackson9000.fsnet.co.uk> - 2017-06-03 13:47 +0100
                Re: Would ?EXIT work in all ANS-Forth systems? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2017-06-03 14:36 +0000
                Re: Would ?EXIT work in all ANS-Forth systems? Gerry Jackson <gerry@jackson9000.fsnet.co.uk> - 2017-06-04 17:29 +0100
                Re: Would ?EXIT work in all ANS-Forth systems? Alex <alex@rivadpm.com> - 2017-06-04 10:28 +0100
                Re: Would ?EXIT work in all ANS-Forth systems? "HAA" <someone@microsoft.com> - 2017-06-05 15:09 +1000
                Re: Would ?EXIT work in all ANS-Forth systems? Alex <alex@rivadpm.com> - 2017-06-05 09:36 +0100
                Re: Would ?EXIT work in all ANS-Forth systems? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2017-06-05 09:35 +0000
                Re: Would ?EXIT work in all ANS-Forth systems? Alex <alex@rivadpm.com> - 2017-06-05 10:57 +0100
                Re: Would ?EXIT work in all ANS-Forth systems? JennyB <jennybrien@googlemail.com> - 2017-06-05 13:07 -0700
                Re: Would ?EXIT work in all ANS-Forth systems? "HAA" <someone@microsoft.com> - 2017-06-07 12:42 +1000
                Re: Would ?EXIT work in all ANS-Forth systems? "HAA" <someone@microsoft.com> - 2017-06-05 20:07 +1000
                Re: Would ?EXIT work in all ANS-Forth systems? Alex <alex@rivadpm.com> - 2017-06-04 10:45 +0100
                Re: Would ?EXIT work in all ANS-Forth systems? "HAA" <someone@microsoft.com> - 2017-06-05 19:21 +1000
                Re: Would ?EXIT work in all ANS-Forth systems? "HAA" <someone@microsoft.com> - 2017-06-03 14:19 +1000
                Re: Would ?EXIT work in all ANS-Forth systems? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2017-06-02 03:32 -0500
                Re: Would ?EXIT work in all ANS-Forth systems? hughaguilar96@gmail.com - 2017-06-02 06:50 -0700
                Re: Would ?EXIT work in all ANS-Forth systems? hum9 <obi65537@gmail.com> - 2017-05-27 00:33 -0700
                Re: Would ?EXIT work in all ANS-Forth systems? "HAA" <someone@microsoft.com> - 2017-05-27 14:53 +1000
                READ-FILE over-specified? "HAA" <someone@microsoft.com> - 2017-05-27 21:28 +1000
                Re: READ-FILE over-specified? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2017-05-27 13:11 +0000
                Re: READ-FILE over-specified? "HAA" <someone@microsoft.com> - 2017-05-29 13:47 +1000
                Re: READ-FILE over-specified? hughaguilar96@gmail.com - 2017-05-28 21:58 -0700
                Re: READ-FILE over-specified? "HAA" <someone@microsoft.com> - 2017-05-30 11:06 +1000
                Re: READ-FILE over-specified? albert@cherry.spenarnc.xs4all.nl (Albert van der Horst) - 2017-05-28 09:44 +0200
                Re: READ-FILE over-specified? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2017-05-28 13:41 +0000
                Re: READ-FILE over-specified? albert@cherry.spenarnc.xs4all.nl (Albert van der Horst) - 2017-05-28 19:59 +0200
                Re: READ-FILE over-specified? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2017-05-29 05:20 +0000
                Re: READ-FILE over-specified? albert@cherry.spenarnc.xs4all.nl (Albert van der Horst) - 2017-05-29 10:29 +0200
                Re: READ-FILE over-specified? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2017-05-29 09:34 +0000
                Re: Would ?EXIT work in all ANS-Forth systems? Gerry Jackson <gerry@jackson9000.fsnet.co.uk> - 2017-05-16 09:42 +0100
                Re: Would ?EXIT work in all ANS-Forth systems? Alex <alex@rivadpm.com> - 2017-05-16 09:53 +0100
                Re: Would ?EXIT work in all ANS-Forth systems? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2017-05-16 04:53 -0500
                Re: Would ?EXIT work in all ANS-Forth systems? albert@cherry.spenarnc.xs4all.nl (Albert van der Horst) - 2017-05-16 12:32 +0200
                Re: Would ?EXIT work in all ANS-Forth systems? Alex <alex@rivadpm.com> - 2017-05-16 12:35 +0100
                Re: Would ?EXIT work in all ANS-Forth systems? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2017-05-16 10:48 -0500
                Re: Would ?EXIT work in all ANS-Forth systems? Alex <alex@rivadpm.com> - 2017-05-16 18:23 +0100
                Re: Would ?EXIT work in all ANS-Forth systems? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2017-05-17 04:33 -0500
                Re: Would ?EXIT work in all ANS-Forth systems? Alex <alex@rivadpm.com> - 2017-05-17 12:29 +0100
                Re: Would ?EXIT work in all ANS-Forth systems? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2017-05-16 10:28 +0000
                Re: Would ?EXIT work in all ANS-Forth systems? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2017-05-16 10:43 -0500
                Re: Would ?EXIT work in all ANS-Forth systems? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2017-05-16 16:34 +0000
                Re: Would ?EXIT work in all ANS-Forth systems? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2017-05-16 12:41 -0500
                Re: Would ?EXIT work in all ANS-Forth systems? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2017-05-17 16:14 +0000
                Re: Would ?EXIT work in all ANS-Forth systems? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2017-05-18 03:05 -0500
                Re: Would ?EXIT work in all ANS-Forth systems? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2017-05-18 16:33 +0000
                Re: Would ?EXIT work in all ANS-Forth systems? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2017-05-18 12:43 -0500
                Re: Would ?EXIT work in all ANS-Forth systems? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2017-05-18 04:01 -0500
                Re: Would ?EXIT work in all ANS-Forth systems? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2017-05-18 15:41 +0000
                Re: Would ?EXIT work in all ANS-Forth systems? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2017-05-18 11:58 -0500
                Re: Would ?EXIT work in all ANS-Forth systems? Alex <alex@rivadpm.com> - 2017-05-18 22:57 +0100
                Re: Would ?EXIT work in all ANS-Forth systems? "HAA" <someone@microsoft.com> - 2017-05-17 00:32 +1000
                Re: Would ?EXIT work in all ANS-Forth systems? Alex <alex@rivadpm.com> - 2017-05-16 15:53 +0100
                Re: Would ?EXIT work in all ANS-Forth systems? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2017-05-15 05:29 +0000
                Re: Would ?EXIT work in all ANS-Forth systems? humptydumpty <ouatubi@gmail.com> - 2017-05-14 23:00 -0700
                Re: Would ?EXIT work in all ANS-Forth systems? rickman <gnuarm@gmail.com> - 2017-05-17 12:27 -0400
            Re: Would ?EXIT work in all ANS-Forth systems? "Rudy Velthuis" <newsgroups@rvelthuis.de> - 2017-05-15 09:16 +0000
            Re: Would ?EXIT work in all ANS-Forth systems? "Rudy Velthuis" <newsgroups@rvelthuis.de> - 2017-05-15 09:55 +0000
        Re: Would ?EXIT work in all ANS-Forth systems? "Rudy Velthuis" <newsgroups@rvelthuis.de> - 2017-05-13 14:25 +0000
          Re: Would ?EXIT work in all ANS-Forth systems? Julian Fondren <julian.fondren@gmail.com> - 2017-05-13 07:49 -0700
            Re: Would ?EXIT work in all ANS-Forth systems? "Rudy Velthuis" <newsgroups@rvelthuis.de> - 2017-05-15 09:59 +0000
            Re: Would ?EXIT work in all ANS-Forth systems? "Rudy Velthuis" <newsgroups@rvelthuis.de> - 2017-05-15 12:22 +0000
      Re: Would ?EXIT work in all ANS-Forth systems? "Rudy Velthuis" <newsgroups@rvelthuis.de> - 2017-05-13 14:19 +0000
  Re: Would ?EXIT work in all ANS-Forth systems? lehs <skydda.barnen@gmail.com> - 2017-05-14 23:23 -0700
    Re: Would ?EXIT work in all ANS-Forth systems? Raimond Dragomir <raimond.dragomir@gmail.com> - 2017-05-15 00:10 -0700
      Re: Would ?EXIT work in all ANS-Forth systems? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2017-05-15 09:35 +0000
    Re: Would ?EXIT work in all ANS-Forth systems? lehs <skydda.barnen@gmail.com> - 2017-05-15 00:54 -0700
      Return-address manipulation (was: Would ?EXIT ...) anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2017-05-15 08:47 +0000
        Re: Return-address manipulation (was: Would ?EXIT ...) stephen@mpeforth.com (Stephen Pelc) - 2017-05-15 11:53 +0000
          Re: Return-address manipulation (was: Would ?EXIT ...) anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2017-05-16 13:03 +0000
            Re: Return-address manipulation (was: Would ?EXIT ...) Raimond Dragomir <raimond.dragomir@gmail.com> - 2017-05-16 07:06 -0700
              Re: Return-address manipulation (was: Would ?EXIT ...) Raimond Dragomir <raimond.dragomir@gmail.com> - 2017-05-16 07:14 -0700
    Re: Would ?EXIT work in all ANS-Forth systems? "Elizabeth D. Rather" <erather@forth.com> - 2017-05-14 21:58 -1000
      Re: Would ?EXIT work in all ANS-Forth systems? stephen@mpeforth.com (Stephen Pelc) - 2017-05-15 11:23 +0000

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