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Groups > comp.lang.forth > #39024

Re: FORTH - How Does It Work?

From anton@mips.complang.tuwien.ac.at (Anton Ertl)
Newsgroups comp.lang.forth
Subject Re: FORTH - How Does It Work?
Date 2015-05-12 14:52 +0000
Organization Institut fuer Computersprachen, Technische Universitaet Wien
Message-ID <2015May12.165207@mips.complang.tuwien.ac.at> (permalink)
References (5 earlier) <ec930a5e-5d5d-4e46-b4eb-422e7dba47c6@googlegroups.com> <1070100d-5d55-4e9e-b2f9-51d6b4157802@googlegroups.com> <8ca958eb-4d11-465f-9fc2-c59b5ee561ab@googlegroups.com> <e654e7da-6a10-41fa-b04a-d06e4e2a2f7d@googlegroups.com> <mistun$tle$1@dont-email.me>

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"Alex McDonald" <blog@rivadpm.com> writes:
>Have you read the spec for ' and FIND? I don't know where you are getting
>this from, but neither ' nor FIND in any ANS Forth (in fact, in any Forth
>I've heard of) do an ABORT if the word is found but has undefined
>interpretation semantics.

In Gforth ticking compile-only words produces an error.

In Gforth 0.7.0:
' if 
:1: Cannot tick compile-only word (try COMP' ... DROP)
' >>>if<<<

(The current development version gives a less refined error message).

The error message resulted in several complaints; the complainers probably
expected an xt of a word representing the compilation semantics, same
as if the word had just been defined IMMEDIATE without COMPILE-ONLY.
Maybe that would have been the better option.

FINDing a compile-only word in interpret state does not produce an
error in Gforth (and should not in any Forth IMO, if FIND is to be
useful for a text interpreter), but gives the xt of a word that
produces an error when executed:

:noname c" if" ; execute find cr . execute
1 
:3: Interpreting a compile-only word
:noname c" if" ; execute find cr . >>>execute<<<

- 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 2015: http://www.mpeforth.com/euroforth2015/euroforth2015.htm

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FORTH - How Does It Work? Jason Damisch <jasondamisch@yahoo.com> - 2015-05-04 09:44 -0700
  FORTH - How Does It Work? Mark Wills <markwills1970@gmail.com> - 2015-05-04 10:21 -0700
    Re: FORTH - How Does It Work? hughaguilar96@gmail.com - 2015-05-04 11:00 -0700
      Re: FORTH - How Does It Work? Mark Wills <markwills1970@gmail.com> - 2015-05-05 03:03 -0700
      Re: FORTH - How Does It Work? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2015-05-05 11:31 +0000
    Re: FORTH - How Does It Work? lehs <skydda.barnen@gmail.com> - 2015-05-05 01:31 -0700
      Re: FORTH - How Does It Work? albert@spenarnc.xs4all.nl (Albert van der Horst) - 2015-05-05 08:49 +0000
      Re: FORTH - How Does It Work? Lars Brinkhoff <lars.spam@nocrew.org> - 2015-05-05 11:16 +0200
      Re: FORTH - How Does It Work? Mark Wills <markwills1970@gmail.com> - 2015-05-05 02:33 -0700
  Re: FORTH - How Does It Work? "Elizabeth D. Rather" <erather@forth.com> - 2015-05-04 08:49 -1000
    Re: FORTH - How Does It Work? albert@spenarnc.xs4all.nl (Albert van der Horst) - 2015-05-04 19:13 +0000
      Re: FORTH - How Does It Work? "Alex McDonald" <blog@rivadpm.com> - 2015-05-04 20:35 +0100
        Re: FORTH - How Does It Work? "Elizabeth D. Rather" <erather@forth.com> - 2015-05-04 10:43 -1000
        Re: FORTH - How Does It Work? albert@spenarnc.xs4all.nl (Albert van der Horst) - 2015-05-05 08:52 +0000
          Re: FORTH - How Does It Work? "Alex McDonald" <blog@rivadpm.com> - 2015-05-05 10:54 +0100
            Re: FORTH - How Does It Work? "Alex McDonald" <blog@rivadpm.com> - 2015-05-05 10:56 +0100
      Re: FORTH - How Does It Work? "Rod Pemberton" <bork@lllljunkqwer.cpm> - 2015-05-04 20:01 -0400
        Re: FORTH - How Does It Work? Jason Damisch <jasondamisch@yahoo.com> - 2015-05-04 17:23 -0700
        Re: FORTH - How Does It Work? Jason Damisch <jasondamisch@yahoo.com> - 2015-05-04 17:34 -0700
          Re: FORTH - How Does It Work? Mark Wills <markwills1970@gmail.com> - 2015-05-05 00:25 -0700
            Re: FORTH - How Does It Work? Coos Haak <chforth@hccnet.nl> - 2015-05-05 12:41 +0200
          Re: FORTH - How Does It Work? "Rod Pemberton" <bork@lllljunkqwer.cpm> - 2015-05-05 03:31 -0400
            Re: FORTH - How Does It Work? "Alex McDonald" <blog@rivadpm.com> - 2015-05-05 08:41 +0100
        Re: FORTH - How Does It Work? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2015-05-05 11:36 +0000
    Re: FORTH - How Does It Work? "HAA" <someone@microsoft.com> - 2015-05-07 11:26 +1000
      Re: FORTH - How Does It Work? "Elizabeth D. Rather" <erather@forth.com> - 2015-05-06 16:46 -1000
        Re: FORTH - How Does It Work? lehs <skydda.barnen@gmail.com> - 2015-05-07 00:06 -0700
        Re: FORTH - How Does It Work? "HAA" <someone@microsoft.com> - 2015-05-10 12:57 +1000
          Re: FORTH - How Does It Work? hughaguilar96@gmail.com - 2015-05-09 21:36 -0700
          Re: FORTH - How Does It Work? "Elizabeth D. Rather" <erather@forth.com> - 2015-05-09 18:36 -1000
            Re: FORTH - How Does It Work? hughaguilar96@gmail.com - 2015-05-09 22:09 -0700
              Re: FORTH - How Does It Work? Walter Banks <walter@bytecraft.com> - 2015-05-10 13:38 -0400
                Re: FORTH - How Does It Work? Richard Owlett <rowlett@cloud85.net> - 2015-05-10 14:23 -0500
                Re: FORTH - How Does It Work? "Alex McDonald" <blog@rivadpm.com> - 2015-05-10 20:51 +0100
                Re: FORTH - How Does It Work? Coos Haak <chforth@hccnet.nl> - 2015-05-11 01:18 +0200
                Apology to Walter Banks - was [Re: FORTH - How Does It Work?] Richard Owlett <rowlett@cloud85.net> - 2015-05-10 23:09 -0500
                Re: Apology to Walter Banks - was [Re: FORTH - How Does It Work?] Walter Banks <walter@bytecraft.com> - 2015-05-11 07:24 -0400
                Re: Apology to Walter Banks - was [Re: FORTH - How Does It Work?] rickman <gnuarm@gmail.com> - 2015-05-11 11:34 -0400
                Re: FORTH - How Does It Work? hughaguilar96@gmail.com - 2015-05-10 19:18 -0700
                Re: FORTH - How Does It Work? Walter Banks <walter@bytecraft.com> - 2015-05-11 07:50 -0400
                Re: FORTH - How Does It Work? beeflo <beeflobill@gmail.com> - 2015-05-11 09:37 -0700
                Re: FORTH - How Does It Work? hughaguilar96@gmail.com - 2015-05-11 11:32 -0700
                Re: FORTH - How Does It Work? Mark Wills <markwills1970@gmail.com> - 2015-05-12 05:21 -0700
                Re: FORTH - How Does It Work? "Alex McDonald" <blog@rivadpm.com> - 2015-05-12 14:08 +0100
                Re: FORTH - How Does It Work? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2015-05-12 14:52 +0000
                Re: FORTH - How Does It Work? "Alex McDonald" <blog@rivadpm.com> - 2015-05-12 17:18 +0100
                Re: FORTH - How Does It Work? Lars Brinkhoff <lars.spam@nocrew.org> - 2015-05-13 08:41 +0200
                Re: FORTH - How Does It Work? "Alex McDonald" <blog@rivadpm.com> - 2015-05-13 08:07 +0100
                Re: FORTH - How Does It Work? hughaguilar96@gmail.com - 2015-05-13 19:29 -0700
                Re: FORTH - How Does It Work? Mark Wills <markwills1970@gmail.com> - 2015-05-12 08:10 -0700
                Re: FORTH - How Does It Work? "Alex McDonald" <blog@rivadpm.com> - 2015-05-12 17:13 +0100
                Re: FORTH - How Does It Work? Jason Damisch <jasondamisch@yahoo.com> - 2015-05-12 09:33 -0700
                Re: FORTH - How Does It Work? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2015-05-12 15:38 +0000
                Re: FORTH - How Does It Work? hughaguilar96@gmail.com - 2015-05-12 21:51 -0700
                Re: FORTH - How Does It Work? "WJ" <w_a_x_man@yahoo.com> - 2015-05-12 16:05 +0000
                Re: FORTH - How Does It Work? hughaguilar96@gmail.com - 2015-05-14 17:26 -0700
                Re: FORTH - How Does It Work? bettilyona@gmail.com - 2015-06-02 10:21 -0700
                Re: FORTH - How Does It Work? hughaguilar96@gmail.com - 2015-06-02 20:39 -0700
                Re: FORTH - How Does It Work? bettilyona@gmail.com - 2015-06-08 13:14 -0700
                Re: FORTH - How Does It Work? Hans Bezemer <the.beez.speaks@gmail.com> - 2015-06-20 13:15 +0200
                Re: FORTH - How Does It Work? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2015-06-20 14:37 +0000
                Re: FORTH - How Does It Work? "Elizabeth D. Rather" <erather@forth.com> - 2015-06-20 08:23 -1000
                Re: FORTH - How Does It Work? hughaguilar96@gmail.com - 2015-06-20 19:24 -0700
                Re: FORTH - How Does It Work? Hans Bezemer <the.beez.speaks@gmail.com> - 2015-06-21 12:30 +0200
                Re: FORTH - How Does It Work? "Alex McDonald" <blog@rivadpm.com> - 2015-06-21 20:58 +0100
                Re: FORTH - How Does It Work? Bernd Paysan <bernd.paysan@gmx.de> - 2015-06-22 00:13 +0200
            Re: FORTH - How Does It Work? "HAA" <someone@microsoft.com> - 2015-05-11 12:10 +1000
              Re: FORTH - How Does It Work? rickman <gnuarm@gmail.com> - 2015-05-11 11:35 -0400
                Re: FORTH - How Does It Work? "Alex McDonald" <blog@rivadpm.com> - 2015-05-11 16:52 +0100
                Re: FORTH - How Does It Work? "Elizabeth D. Rather" <erather@forth.com> - 2015-05-11 08:12 -1000
                Re: FORTH - How Does It Work? hughaguilar96@gmail.com - 2015-05-11 12:37 -0700
                Re: FORTH - How Does It Work? Walter Banks <walter@bytecraft.com> - 2015-05-11 15:59 -0400
                Re: FORTH - How Does It Work? "Alex McDonald" <blog@rivadpm.com> - 2015-05-11 21:34 +0100
                Re: FORTH - How Does It Work? rickman <gnuarm@gmail.com> - 2015-05-11 16:42 -0400
                Re: FORTH - How Does It Work? "Alex McDonald" <blog@rivadpm.com> - 2015-05-11 21:52 +0100
                Re: FORTH - How Does It Work? hughaguilar96@gmail.com - 2015-05-11 14:55 -0700
                Re: FORTH - How Does It Work? "WJ" <w_a_x_man@yahoo.com> - 2015-05-12 16:22 +0000
                Re: FORTH - How Does It Work? hughaguilar96@gmail.com - 2015-05-12 22:42 -0700
                Re: FORTH - How Does It Work? Jason Damisch <jasondamisch@yahoo.com> - 2015-05-13 11:18 -0700
                Re: FORTH - How Does It Work? "WJ" <w_a_x_man@yahoo.com> - 2015-05-25 15:04 +0000
                Re: FORTH - How Does It Work? rickman <gnuarm@gmail.com> - 2015-05-11 20:38 -0400
                Re: FORTH - How Does It Work? hughaguilar96@gmail.com - 2015-05-11 14:31 -0700
                Re: FORTH - How Does It Work? Walter Banks <walter@bytecraft.com> - 2015-05-12 07:06 -0400
                Re: FORTH - How Does It Work? "Alex McDonald" <blog@rivadpm.com> - 2015-05-11 21:30 +0100
                Re: FORTH - How Does It Work? hughaguilar96@gmail.com - 2015-05-11 14:52 -0700
                Re: FORTH - How Does It Work? rickman <gnuarm@gmail.com> - 2015-05-11 20:40 -0400
                Re: FORTH - How Does It Work? Bernd Paysan <bernd.paysan@gmx.de> - 2015-05-12 03:38 +0200
                Re: FORTH - How Does It Work? rickman <gnuarm@gmail.com> - 2015-05-11 22:10 -0400
                Re: FORTH - How Does It Work? hughaguilar96@gmail.com - 2015-05-11 20:25 -0700
                Re: FORTH - How Does It Work? Mark Wills <markwills1970@gmail.com> - 2015-05-12 01:13 -0700
                Re: FORTH - How Does It Work? "Alex McDonald" <blog@rivadpm.com> - 2015-05-12 11:03 +0100
                Re: FORTH - How Does It Work? Bernd Paysan <bernd.paysan@gmx.de> - 2015-05-12 16:08 +0200
                Re: FORTH - How Does It Work? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2015-05-12 14:04 +0000
                Re: FORTH - How Does It Work? hughaguilar96@gmail.com - 2015-05-11 19:08 -0700
                Re: FORTH - How Does It Work? rickman <gnuarm@gmail.com> - 2015-05-11 22:46 -0400
                Re: FORTH - How Does It Work? "HAA" <someone@microsoft.com> - 2015-05-14 18:30 +1000
                Re: FORTH - How Does It Work? "Elizabeth D. Rather" <erather@forth.com> - 2015-05-13 22:55 -1000
                Re: FORTH - How Does It Work? "HAA" <someone@microsoft.com> - 2015-05-16 05:08 +1000
                Re: FORTH - How Does It Work? "Elizabeth D. Rather" <erather@forth.com> - 2015-05-15 09:54 -1000
                Re: FORTH - How Does It Work? hughaguilar96@gmail.com - 2015-05-20 13:59 -0700
                Re: FORTH - How Does It Work? "Alex McDonald" <blog@rivadpm.com> - 2015-05-14 10:40 +0100
                Re: FORTH - How Does It Work? Mark Wills <markwills1970@gmail.com> - 2015-05-14 03:12 -0700
                Re: FORTH - How Does It Work? "Alex McDonald" <blog@rivadpm.com> - 2015-05-14 12:03 +0100
            Re: FORTH - How Does It Work? hughaguilar96@gmail.com - 2015-05-10 22:09 -0700
              Re: FORTH - How Does It Work? Jason Damisch <jasondamisch@yahoo.com> - 2015-05-11 10:12 -0700
                Re: FORTH - How Does It Work? "Alex McDonald" <blog@rivadpm.com> - 2015-05-11 18:57 +0100
                Re: FORTH - How Does It Work? hughaguilar96@gmail.com - 2015-05-11 11:48 -0700
                Re: FORTH - How Does It Work? "Alex McDonald" <blog@rivadpm.com> - 2015-05-11 20:28 +0100
                Re: FORTH - How Does It Work? hughaguilar96@gmail.com - 2015-05-12 21:28 -0700
        Re: FORTH - How Does It Work? rickman <gnuarm@gmail.com> - 2015-05-11 11:29 -0400
  Re: FORTH - How Does It Work? Ching-Tang Tseng <ilikeforth@gmail.com> - 2015-05-04 19:40 -0700
  Re: FORTH - How Does It Work? tthomas@duelcraft2.com - 2015-05-08 16:22 -0700

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