Re: POSTPONE behaviour

From	Gerry Jackson <gerry@jackson9000.fsnet.co.uk>
Newsgroups	comp.lang.forth
Subject	Re: POSTPONE behaviour
Date	2015-11-27 09:53 +0000
Organization	A noiseless patient Spider
Message-ID	<n39915$ph7$1@dont-email.me> (permalink)
References	(6 earlier) <n33pnt$2tq$1@dont-email.me> <91b7cce8-9779-4ab4-84bf-6f4b04115189@googlegroups.com> <n33u8h$h4j$1@dont-email.me> <29d96442-5161-4d80-ae1a-5592f9509389@googlegroups.com> <2b2cb8ba-e5a4-4245-a416-7387bc22dc85@googlegroups.com>

Show all headers | View raw

On 26/11/2015 20:29, hughaguilar96@gmail.com wrote:
> Also, ANS-Forth was sabotaged to prevent cross-compilers from
 > being written.. In gForth, FIND crashes on some words (such as
> IF etc.), but in VFX FIND returns an xt for these words and
> the xt crashes when it is executed. Both systems are considered
> to be ANS-Forth compliant. Also, words are not defined to be
> either immediate or non-immediate, but this is left implementation
> dependent (WTF?) so there isn't any consistency between the systems.
>
> POSTPONE was not sabotaged however! Because of this loophole,
>  it is possible to work-around the sabotage to make ANS-Forth
> behave consistently from one system to another. This is done with
> my disambiguifiers:
>
> : if  state @ 0= abort" *** no interpretation semantics for:
> IF ***"  postpone if  ;  immediate

When I developed my system some 10 years ago I was ignorant of the fact 
that the perpetrators of ANS Forth had sabotaged it so that cross 
compilers couldn't be written in ANS Forth. So I developed my system  in 
ANS Forth as a cross compiler, albeit with the same target as the host, 
without recourse to the anti-sabotage counter measures using POSTPONE 
that you describe and without writing my own outer interpreter. So 
either the saboteurs failed or I have dreamed that my cross compiler 
actually works - it must be the latter.

Thank you for enlightening me, I was so ignorant, please forgive me - I 
live in my dream world so I'll destroy my system before the legions of 
ANS Forth police send out the assassination squads. We cannot be too 
careful!

-- 
Gerry

Thread

POSTPONE behaviour Aliaksei Chapyzhenka <alex.drom@gmail.com> - 2015-11-24 21:18 -0800
  Re: POSTPONE behaviour Raimond Dragomir <raimond.dragomir@gmail.com> - 2015-11-24 22:00 -0800
    Re: POSTPONE behaviour Aliaksei Chapyzhenka <alex.drom@gmail.com> - 2015-11-24 22:15 -0800
      Re: POSTPONE behaviour Raimond Dragomir <raimond.dragomir@gmail.com> - 2015-11-24 22:54 -0800
        Re: POSTPONE behaviour Aliaksei Chapyzhenka <alex.drom@gmail.com> - 2015-11-24 23:09 -0800
        Re: POSTPONE behaviour Lars Brinkhoff <lars.spam@nocrew.org> - 2015-11-25 08:15 +0100
          Re: POSTPONE behaviour Raimond Dragomir <raimond.dragomir@gmail.com> - 2015-11-24 23:38 -0800
            Re: POSTPONE behaviour Lars Brinkhoff <lars.spam@nocrew.org> - 2015-11-25 08:46 +0100
              Re: POSTPONE behaviour Raimond Dragomir <raimond.dragomir@gmail.com> - 2015-11-25 00:04 -0800
            Re: POSTPONE behaviour rickman <gnuarm@gmail.com> - 2015-11-25 03:01 -0500
              Re: POSTPONE behaviour Raimond Dragomir <raimond.dragomir@gmail.com> - 2015-11-25 00:09 -0800
                Re: POSTPONE behaviour rickman <gnuarm@gmail.com> - 2015-11-25 03:23 -0500
                Re: POSTPONE behaviour Raimond Dragomir <raimond.dragomir@gmail.com> - 2015-11-25 01:09 -0800
                Re: POSTPONE behaviour rickman <gnuarm@gmail.com> - 2015-11-25 10:49 -0500
                Re: POSTPONE behaviour "Elizabeth D. Rather" <erather@forth.com> - 2015-11-25 09:10 -1000
                Re: POSTPONE behaviour Gerry Jackson <gerry@jackson9000.fsnet.co.uk> - 2015-11-25 09:18 +0000
                Re: POSTPONE behaviour Raimond Dragomir <raimond.dragomir@gmail.com> - 2015-11-25 02:21 -0800
                Re: POSTPONE behaviour Mark Wills <markwills1970@gmail.com> - 2015-11-25 02:47 -0800
                Re: POSTPONE behaviour Gerry Jackson <gerry@jackson9000.fsnet.co.uk> - 2015-11-25 13:58 +0000
                Re: POSTPONE behaviour Mark Wills <markwills1970@gmail.com> - 2015-11-25 06:35 -0800
                Re: POSTPONE behaviour Bernd Paysan <bernd.paysan@gmx.de> - 2015-11-25 18:45 +0100
                Re: POSTPONE behaviour Raimond Dragomir <raimond.dragomir@gmail.com> - 2015-11-25 22:11 -0800
                Re: POSTPONE behaviour Gerry Jackson <gerry@jackson9000.fsnet.co.uk> - 2015-11-26 07:42 +0000
                Re: POSTPONE behaviour "Rod Pemberton" <boo@fasdfrewar.cdm> - 2015-11-26 05:20 -0500
                Re: POSTPONE behaviour anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2015-11-26 16:50 +0000
                Re: POSTPONE behaviour Gerry Jackson <gerry@jackson9000.fsnet.co.uk> - 2015-11-26 17:59 +0000
                Re: POSTPONE behaviour Bernd Paysan <bernd.paysan@gmx.de> - 2015-11-27 19:07 +0100
                Re: POSTPONE behaviour anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2015-11-28 11:24 +0000
                Re: POSTPONE behaviour hughaguilar96@gmail.com - 2015-11-26 12:29 -0800
                Re: POSTPONE behaviour Gerry Jackson <gerry@jackson9000.fsnet.co.uk> - 2015-11-27 09:53 +0000
                Re: POSTPONE behaviour hughaguilar96@gmail.com - 2015-11-29 21:48 -0800
                Re: POSTPONE behaviour Gerry Jackson <gerry@jackson9000.fsnet.co.uk> - 2015-11-30 12:18 +0000
                Re: POSTPONE behaviour Lars Brinkhoff <lars.spam@nocrew.org> - 2015-11-30 13:41 +0100
                Re: POSTPONE behaviour hughaguilar96@gmail.com - 2015-11-30 19:56 -0800
                Re: POSTPONE behaviour Gerry Jackson <gerry@jackson9000.fsnet.co.uk> - 2015-12-01 09:59 +0000
                Re: POSTPONE behaviour hughaguilar96@gmail.com - 2015-12-01 22:46 -0800
                Re: POSTPONE behaviour Gerry Jackson <gerry@jackson9000.fsnet.co.uk> - 2015-12-02 07:50 +0000
              Re: POSTPONE behaviour anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2015-11-25 13:45 +0000
                Re: POSTPONE behaviour rickman <gnuarm@gmail.com> - 2015-11-25 10:54 -0500
        Re: POSTPONE behaviour Gerry Jackson <gerry@jackson9000.fsnet.co.uk> - 2015-11-25 07:39 +0000
          Re: POSTPONE behaviour Aliaksei Chapyzhenka <alex.drom@gmail.com> - 2015-11-24 23:48 -0800
            Re: POSTPONE behaviour Gerry Jackson <gerry@jackson9000.fsnet.co.uk> - 2015-11-25 08:03 +0000
    Re: POSTPONE behaviour Bernd Paysan <bernd.paysan@gmx.de> - 2015-11-25 18:37 +0100
  Re: POSTPONE behaviour "Rod Pemberton" <boo@fasdfrewar.cdm> - 2015-11-25 01:27 -0500
    Re: POSTPONE behaviour Aliaksei Chapyzhenka <alex.drom@gmail.com> - 2015-11-24 22:51 -0800
  Re: POSTPONE behaviour Aliaksei Chapyzhenka <alex.drom@gmail.com> - 2015-11-25 21:19 -0800

csiph-web