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Re: structure and interpretation of computer programs exercsie 1.3 in forth

From stephenXXX@mpeforth.com (Stephen Pelc)
Newsgroups comp.lang.forth
Subject Re: structure and interpretation of computer programs exercsie 1.3 in forth
Message-ID <50fd2b7a.291053998@192.168.0.50> (permalink)
References (6 earlier) <3242f719-8f64-4c56-bd2e-39579f7bab60@i1g2000vbp.googlegroups.com> <ae9ad6ca-dd83-421c-8c83-9c868af3f1da@googlegroups.com> <kda9q4$3g3$1@speranza.aioe.org> <3381911.3ZU4d4d4Dr@sunwukong.fritz.box> <kdfi3o$47s$1@speranza.aioe.org>
Date 2013-01-21 12:13 +0000

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On Sun, 20 Jan 2013 12:42:18 +1100, "Ed" <invalid@nospam.com> wrote:

>I don't accept every criticism Jeff made about ANS in his public writings
>(and indeed some of it was far too personal) nevertheless I find myself
>agreeing that the Forth in Standard Forth is increasingly hard to find.

There's very little in the ANS and Forth200x standards that is
required to be present in a Forth system. But there has to be a
mechanism to extend the system.

However many times members of the technical committee remind people
of this, our statements are ignored.

In consequence, the ANS and Forth200x desktop Forths contain almost
everything. MPE has been criticised more than once for not 
providing floating point as part of the VFX Forth package. We
support three FP packages. One of the critics is a TC member.

The point to remember is that almost everything is optional
according to the standard, regardless of how people misread
the standard.

Because of the standard, MPE uses far more third-party code than
before the standard existed.

>Take locals - allegedly "optional" in ANS.  Should a Forth Standard expect
>Forth CPU's to have the resources to efficiently implement foreign notions
>such as locals because the Standard libraries that you load could well be
>full of them?

That depends on what the "Forth" CPU is for. Disciples of the
minimalism will probably conclude that silicon can be replaced by
clever programmers. People who want Forth CPUs to be commercially
successful will probably conclude that a language-neutral instruction
set is required. I have discussed the requirements of the C (Pasgol)
and Forth virtual machines several times in Rochester, EuroForth and
Dr Dobbs papers.

It is probably a mistake to talk about Forth CPUs. What we see are
silicon implementations of some two-stack architectures in which
there is one stack mainly for data and another stack mainly for
addresses.

Stephen


-- 
Stephen Pelc, stephenXXX@mpeforth.com
MicroProcessor Engineering Ltd - More Real, Less Time
133 Hill Lane, Southampton SO15 5AF, England
tel: +44 (0)23 8063 1441, fax: +44 (0)23 8033 9691
web: http://www.mpeforth.com - free VFX Forth downloads

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structure and interpretation of computer programs exercsie 1.3 in forth gavino_himself <visploveslisp@gmail.com> - 2013-01-11 04:22 -0800
  Re: structure and interpretation of computer programs exercsie 1.3 in forth Alex McDonald <blog@rivadpm.com> - 2013-01-11 05:47 -0800
    Re: structure and interpretation of computer programs exercsie 1.3 in forth Mark Wills <forthfreak@gmail.com> - 2013-01-11 06:12 -0800
      Re: structure and interpretation of computer programs exercsie 1.3 in forth gavino_himself <visploveslisp@gmail.com> - 2013-01-11 06:18 -0800
        Re: structure and interpretation of computer programs exercsie 1.3 in forth Mark Wills <forthfreak@gmail.com> - 2013-01-11 06:20 -0800
      Re: structure and interpretation of computer programs exercsie 1.3 in forth Mark Wills <forthfreak@gmail.com> - 2013-01-11 06:19 -0800
        Re: structure and interpretation of computer programs exercsie 1.3 in forth gavino_himself <visploveslisp@gmail.com> - 2013-01-11 06:38 -0800
          Re: structure and interpretation of computer programs exercsie 1.3 in forth Mark Wills <forthfreak@gmail.com> - 2013-01-11 06:51 -0800
            Re: structure and interpretation of computer programs exercsie 1.3 in forth gavino_himself <visploveslisp@gmail.com> - 2013-01-11 07:10 -0800
            Re: structure and interpretation of computer programs exercsie 1.3 in forth gavino_himself <visploveslisp@gmail.com> - 2013-01-11 07:58 -0800
              Re: structure and interpretation of computer programs exercsie 1.3 in forth rickman <gnuarm@gmail.com> - 2013-01-14 10:01 -0500
      Re: structure and interpretation of computer programs exercsie 1.3 in forth gavino_himself <visploveslisp@gmail.com> - 2013-01-11 06:25 -0800
        Re: structure and interpretation of computer programs exercsie 1.3 in forth gavino_himself <visploveslisp@gmail.com> - 2013-01-11 06:28 -0800
        Re: structure and interpretation of computer programs exercsie 1.3 in forth Mark Wills <forthfreak@gmail.com> - 2013-01-11 06:33 -0800
          Re: structure and interpretation of computer programs exercsie 1.3 in forth gavino_himself <visploveslisp@gmail.com> - 2013-01-11 06:37 -0800
      Re: structure and interpretation of computer programs exercsie 1.3 in forth Mark Wills <forthfreak@gmail.com> - 2013-01-11 06:56 -0800
        Re: structure and interpretation of computer programs exercsie 1.3 in forth gavino_himself <visploveslisp@gmail.com> - 2013-01-11 08:03 -0800
          Re: structure and interpretation of computer programs exercsie 1.3 in forth gavino_himself <visploveslisp@gmail.com> - 2013-01-11 08:06 -0800
            Re: structure and interpretation of computer programs exercsie 1.3 in forth Mark Wills <forthfreak@gmail.com> - 2013-01-11 12:27 -0800
              Re: structure and interpretation of computer programs exercsie 1.3 in forth gavino_himself <visploveslisp@gmail.com> - 2013-01-13 17:32 -0800
                Re: structure and interpretation of computer programs exercsie 1.3 in forth Mark Wills <forthfreak@gmail.com> - 2013-01-13 23:21 -0800
                Re: structure and interpretation of computer programs exercsie 1.3 in forth Mark Wills <forthfreak@gmail.com> - 2013-01-13 23:41 -0800
                Re: structure and interpretation of computer programs exercsie 1.3 in forth Paul Rubin <no.email@nospam.invalid> - 2013-01-13 23:43 -0800
                Re: structure and interpretation of computer programs exercsie 1.3 in forth Mark Wills <forthfreak@gmail.com> - 2013-01-14 00:02 -0800
                Re: structure and interpretation of computer programs exercsie 1.3 in forth "Elizabeth D. Rather" <erather@forth.com> - 2013-01-14 22:43 +1300
                Re: structure and interpretation of computer programs exercsie 1.3 in forth Paul Rubin <no.email@nospam.invalid> - 2013-01-14 02:41 -0800
                Re: structure and interpretation of computer programs exercsie 1.3 in forth Gerry Jackson <gerry@jackson9000.fsnet.co.uk> - 2013-01-14 11:13 +0000
                Re: structure and interpretation of computer programs exercsie 1.3 in forth albert@spenarnc.xs4all.nl (Albert van der Horst) - 2013-01-14 11:16 +0000
                Re: structure and interpretation of computer programs exercsie 1.3 in forth mhx@iae.nl (Marcel Hendrix) - 2013-01-14 21:27 +0200
                Re: structure and interpretation of computer programs exercsie 1.3 in forth Howerd <howerdo@yahoo.co.uk> - 2013-01-14 03:34 -0800
                Re: structure and interpretation of computer programs exercsie 1.3  in forth anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2013-01-14 12:53 +0000
                Re: structure and interpretation of computer programs exercsie 1.3  in forth "Elizabeth D. Rather" <erather@forth.com> - 2013-01-17 17:31 +1300
                Re: structure and interpretation of computer programs exercsie 1.3 in forth Hugh Aguilar <hughaguilar96@yahoo.com> - 2013-01-21 19:35 -0800
                Re: structure and interpretation of computer programs exercsie 1.3 in forth Paul Rubin <no.email@nospam.invalid> - 2013-01-14 02:55 -0800
                Re: structure and interpretation of computer programs exercsie 1.3 in forth rickman <gnuarm@gmail.com> - 2013-01-14 10:14 -0500
                Re: structure and interpretation of computer programs exercsie 1.3 in forth Bernd Paysan <bernd.paysan@gmx.de> - 2013-01-14 20:04 +0100
                Re: structure and interpretation of computer programs exercsie 1.3 in forth Hugh Aguilar <hughaguilar96@yahoo.com> - 2013-01-21 19:57 -0800
                Re: structure and interpretation of computer programs exercsie 1.3 in forth Mark Wills <forthfreak@gmail.com> - 2013-01-21 23:19 -0800
                Re: structure and interpretation of computer programs exercsie 1.3 in forth Hugh Aguilar <hughaguilar96@yahoo.com> - 2013-01-24 18:58 -0800
                Re: structure and interpretation of computer programs exercsie 1.3 in forth Alex McDonald <blog@rivadpm.com> - 2013-01-25 15:46 -0800
                Re: structure and interpretation of computer programs exercsie 1.3 in forth Pablo Hugo Reda <pabloreda@gmail.com> - 2013-01-25 19:09 -0800
                Re: structure and interpretation of computer programs exercsie 1.3 in forth Alex McDonald <blog@rivadpm.com> - 2013-01-26 01:12 -0800
                Re: structure and interpretation of computer programs exercsie 1.3 in forth mhx@iae.nl (Marcel Hendrix) - 2013-01-26 12:58 +0200
                Re: structure and interpretation of computer programs exercsie 1.3 in forth Alex McDonald <blog@rivadpm.com> - 2013-01-26 04:42 -0800
                Re: structure and interpretation of computer programs exercsie 1.3 in forth albert@spenarnc.xs4all.nl (Albert van der Horst) - 2013-01-26 14:35 +0000
                Re: structure and interpretation of computer programs exercsie 1.3 in forth gavino_himself <visploveslisp@gmail.com> - 2013-01-21 22:38 -0800
            Re: structure and interpretation of computer programs exercsie 1.3 in forth Mark Wills <forthfreak@gmail.com> - 2013-01-11 12:36 -0800
              Re: structure and interpretation of computer programs exercsie 1.3 in forth gavino_himself <visploveslisp@gmail.com> - 2013-01-13 17:33 -0800
                Re: structure and interpretation of computer programs exercsie 1.3 in forth "Elizabeth D. Rather" <erather@forth.com> - 2013-01-14 22:46 +1300
                Re: structure and interpretation of computer programs exercsie 1.3 in forth rickman <gnuarm@gmail.com> - 2013-01-14 10:20 -0500
                Re: structure and interpretation of computer programs exercsie 1.3 in forth Andrew Haley <andrew29@littlepinkcloud.invalid> - 2013-01-14 10:41 -0600
                Re: structure and interpretation of computer programs exercsie 1.3 in forth "Elizabeth D. Rather" <erather@forth.com> - 2013-01-17 17:34 +1300
                Re: structure and interpretation of computer programs exercsie 1.3 in forth gavino_himself <visploveslisp@gmail.com> - 2013-01-21 22:48 -0800
                Re: structure and interpretation of computer programs exercsie 1.3 in forth gavino_himself <visploveslisp@gmail.com> - 2013-01-21 22:49 -0800
                Re: structure and interpretation of computer programs exercsie 1.3 in forth Mark Wills <forthfreak@gmail.com> - 2013-01-21 23:55 -0800
                Re: structure and interpretation of computer programs exercsie 1.3 in forth "Ed" <invalid@nospam.com> - 2013-01-18 12:50 +1100
                Re: structure and interpretation of computer programs exercsie 1.3 in forth Bernd Paysan <bernd.paysan@gmx.de> - 2013-01-18 23:31 +0100
                Re: structure and interpretation of computer programs exercsie 1.3 in forth "Ed" <invalid@nospam.com> - 2013-01-20 12:42 +1100
                Re: structure and interpretation of computer programs exercsie 1.3 in forth Mark Wills <markrobertwills@yahoo.co.uk> - 2013-01-20 01:24 -0800
                Re: structure and interpretation of computer programs exercsie 1.3 in forth Hugh Aguilar <hughaguilar96@yahoo.com> - 2013-01-20 15:51 -0800
                Re: structure and interpretation of computer programs exercsie 1.3 in forth "Elizabeth D. Rather" <erather@forth.com> - 2013-01-21 22:14 +1300
                Re: structure and interpretation of computer programs exercsie 1.3 in forth Hugh Aguilar <hughaguilar96@yahoo.com> - 2013-01-21 19:14 -0800
                Re: structure and interpretation of computer programs exercsie 1.3 in forth "A. K." <akk@nospam.org> - 2013-01-20 11:13 +0100
                Re: structure and interpretation of computer programs exercsie 1.3 in forth Paul Rubin <no.email@nospam.invalid> - 2013-01-20 02:45 -0800
                Re: structure and interpretation of computer programs exercsie 1.3 in forth anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2013-01-21 17:14 +0000
                Re: structure and interpretation of computer programs exercsie 1.3 in forth Paul Rubin <no.email@nospam.invalid> - 2013-01-23 01:52 -0800
                Re: structure and interpretation of computer programs exercsie 1.3 in forth Andrew Haley <andrew29@littlepinkcloud.invalid> - 2013-01-23 04:25 -0600
                Re: structure and interpretation of computer programs exercsie 1.3 in forth anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2013-01-23 15:20 +0000
                Re: structure and interpretation of computer programs exercsie 1.3 in forth Paul Rubin <no.email@nospam.invalid> - 2013-01-23 09:29 -0800
                Re: structure and interpretation of computer programs exercsie 1.3 in forth anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2013-01-23 17:40 +0000
                Re: structure and interpretation of computer programs exercsie 1.3 in forth Paul Rubin <no.email@nospam.invalid> - 2013-01-23 22:03 -0800
                Re: structure and interpretation of computer programs exercsie 1.3 in forth "Elizabeth D. Rather" <erather@forth.com> - 2013-01-24 22:13 +1300
                Re: structure and interpretation of computer programs exercsie 1.3 in forth Mark Wills <forthfreak@gmail.com> - 2013-01-24 02:57 -0800
                Re: structure and interpretation of computer programs exercsie 1.3 in forth Paul Rubin <no.email@nospam.invalid> - 2013-01-26 13:49 -0800
                Re: structure and interpretation of computer programs exercsie 1.3 in forth "Elizabeth D. Rather" <erather@forth.com> - 2013-01-26 12:40 -1000
                Re: structure and interpretation of computer programs exercsie 1.3 in forth Paul Rubin <no.email@nospam.invalid> - 2013-01-26 23:20 -0800
                Re: structure and interpretation of computer programs exercsie 1.3 in forth mhx@iae.nl (Marcel Hendrix) - 2013-01-27 09:52 +0200
                Re: structure and interpretation of computer programs exercsie 1.3 in forth "Paul E. Bennett" <Paul_E.Bennett@topmail.co.uk> - 2013-01-23 23:05 +0000
                Re: structure and interpretation of computer programs exercsie 1.3  in forth anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2013-01-21 17:05 +0000
                Re: structure and interpretation of computer programs exercsie 1.3  in forth "A. K." <akk@nospam.org> - 2013-01-21 19:28 +0100
                Re: structure and interpretation of computer programs exercsie 1.3   in forth anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2013-01-22 17:43 +0000
                Re: structure and interpretation of computer programs exercsie 1.3 in forth "Paul E. Bennett" <Paul_E.Bennett@topmail.co.uk> - 2013-01-22 19:12 +0000
                Re: structure and interpretation of computer programs exercsie 1.3 in forth stephenXXX@mpeforth.com (Stephen Pelc) - 2013-01-21 12:13 +0000
                Re: structure and interpretation of computer programs exercsie 1.3 in forth anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2013-01-21 17:28 +0000
                Re: structure and interpretation of computer programs exercsie 1.3 in forth anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2013-01-22 18:06 +0000
                Re: structure and interpretation of computer programs exercsie 1.3 in forth Bernd Paysan <bernd.paysan@gmx.de> - 2013-01-22 19:30 +0100
              Re: structure and interpretation of computer programs exercsie 1.3 in forth gavino_himself <visploveslisp@gmail.com> - 2013-01-21 23:06 -0800
                Re: structure and interpretation of computer programs exercsie 1.3 in forth Mark Wills <forthfreak@gmail.com> - 2013-01-22 02:20 -0800
                Re: structure and interpretation of computer programs exercsie 1.3 in forth Mark Wills <forthfreak@gmail.com> - 2013-01-22 03:36 -0800
                Re: structure and interpretation of computer programs exercsie 1.3 in forth Mark Wills <forthfreak@gmail.com> - 2013-01-22 06:51 -0800
                Re: structure and interpretation of computer programs exercsie 1.3 in forth marko <marko@marko.marko> - 2013-01-24 22:14 +1100
                Re: structure and interpretation of computer programs exercsie 1.3 in forth the_gavino_himself <visphatesjava@gmail.com> - 2013-01-27 20:39 -0800
                Re: structure and interpretation of computer programs exercsie 1.3 in forth marko <marko@marko.marko> - 2013-02-01 22:07 +1100
                Re: structure and interpretation of computer programs exercsie 1.3 in forth marko <marko@marko.marko> - 2013-02-01 22:53 +1100
                Re: structure and interpretation of computer programs exercsie 1.3 in forth the_gavino_himself <visphatesjava@gmail.com> - 2013-02-08 19:50 -0800
                Re: structure and interpretation of computer programs exercsie 1.3 in forth Elizabeth D Rather <erather@forth.com> - 2013-02-08 19:22 -1000
      Re: structure and interpretation of computer programs exercsie 1.3 in forth Andrew Haley <andrew29@littlepinkcloud.invalid> - 2013-01-11 11:44 -0600
        Re: structure and interpretation of computer programs exercsie 1.3 in forth Mark Wills <forthfreak@gmail.com> - 2013-01-11 12:34 -0800
    Re: structure and interpretation of computer programs exercsie 1.3 in forth gavino_himself <visploveslisp@gmail.com> - 2013-01-11 06:18 -0800
  Re:structure and interpretation of computer programs exercsie 1.3 in forth Hans Bezemer <the.beez.speaks@gmail.com> - 2013-01-14 00:13 +0100
    Re: structure and interpretation of computer programs exercsie 1.3 in forth Doug Hoffman <glidedog@gmail.com> - 2013-01-13 19:12 -0500
      Re: structure and interpretation of computer programs exercsie 1.3 in forth gavino_himself <visploveslisp@gmail.com> - 2013-01-13 18:26 -0800
      Re: structure and interpretation of computer programs exercsie 1.3 in forth Gerry Jackson <gerry@jackson9000.fsnet.co.uk> - 2013-01-14 08:29 +0000
        Re: structure and interpretation of computer programs exercsie 1.3 in forth Hans Bezemer <the.beez.speaks@gmail.com> - 2013-01-14 23:52 +0100
    Re: structure and interpretation of computer programs exercsie 1.3 in forth gavino_himself <visploveslisp@gmail.com> - 2013-01-13 18:31 -0800
    Re: structure and interpretation of computer programs exercsie 1.3 in forth Mark Wills <forthfreak@gmail.com> - 2013-01-13 23:19 -0800
      Re: structure and interpretation of computer programs exercsie 1.3 in forth gavino_himself <visploveslisp@gmail.com> - 2013-01-21 22:46 -0800
        Re: structure and interpretation of computer programs exercsie 1.3 in forth Mark Wills <forthfreak@gmail.com> - 2013-01-21 23:40 -0800

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