Re: offtopic - Critical of the Computer Industry

From	rickman <gnuarm@gmail.com>
Newsgroups	comp.lang.forth
Subject	Re: offtopic - Critical of the Computer Industry
Date	2013-05-11 21:05 -0400
Organization	A noiseless patient Spider
Message-ID	<kmmpmp$1th$1@dont-email.me> (permalink)
References	(8 earlier) <7xobcmcew7.fsf@ruckus.brouhaha.com> <kmhdr9$sgh$1@speranza.aioe.org> <7xbo8hk5vn.fsf@ruckus.brouhaha.com> <kmloq1$p90$1@dont-email.me> <7xk3n5dzza.fsf@ruckus.brouhaha.com>

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On 5/11/2013 4:27 PM, Paul Rubin wrote:
> rickman<gnuarm@gmail.com>  writes:
>> That all sounds right except for the assumed equivalence between the
>> target machine instructions and Forth.  Just because a CPU design uses
>> a stack does not mean it is equivalent to Forth code.
>
> The first sentence in the article is:
>
>    This is a personal account of my experience implementing and using
>    the Forth programming language and the stack machine architecture.
>
> Later it says:
>
>    I defined the instruction set in a couple of hours. It mapped to Forth
>    words as straightforwardly as possible, plus it had a few things Forth
>    doesn't have that C might need, as a kind of insurance (say, access to
>    16-bit values in memory).
>
> I think the thing about 16-bit values just means it has something like
> c! and c@ but for 16 bit fields.  The data cell size is apparently 64
> bits.

I don't see the connection.  The fact that someone designed a stack 
machine to run something very Forth like does not mean the stack machine 
executes Forth.  None of the above quotes contradict this statement.

To generate Forth from a C compiler means you need to generate Forth. 
I'm not saying this would be hard, I think just the opposite.  But any 
given stack machine is not necessarily the same as the Forth VM so that 
they are not equivalent problems.  Equivalent in complexity perhaps, but 
obviously there are some issues which the author of the link you refer 
to seemed to think required some special instructions which are not part 
of Forth.

-- 

Rick

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offtopic - Critical of the Computer Industry Jason Damisch <jasondamisch@yahoo.com> - 2013-05-03 11:17 -0700
  Re: offtopic - Critical of the Computer Industry "Rod Pemberton" <do_not_have@notemailnotq.cpm> - 2013-05-03 16:54 -0400
    Re: offtopic - Critical of the Computer Industry Jason Damisch <jasondamisch@yahoo.com> - 2013-05-03 14:30 -0700
      Re: offtopic - Critical of the Computer Industry rickman <gnuarm@gmail.com> - 2013-05-04 16:03 -0400
  Re: offtopic - Critical of the Computer Industry visualforth@rocketmail.com - 2013-05-03 23:24 -0700
    Re: offtopic - Critical of the Computer Industry rickman <gnuarm@gmail.com> - 2013-05-04 16:24 -0400
      Re: offtopic - Critical of the Computer Industry "visualforth@rocketmail.com" <babruehl@gmail.com> - 2013-05-04 15:01 -0700
      Re: offtopic - Critical of the Computer Industry Paul Rubin <no.email@nospam.invalid> - 2013-05-04 15:50 -0700
        Re: offtopic - Critical of the Computer Industry "Elizabeth D. Rather" <erather@forth.com> - 2013-05-04 13:45 -1000
          Re: offtopic - Critical of the Computer Industry babruehl@gmail.com - 2013-05-04 16:55 -0700
            Re: offtopic - Critical of the Computer Industry "Elizabeth D. Rather" <erather@forth.com> - 2013-05-04 15:08 -1000
          Re: offtopic - Critical of the Computer Industry Paul Rubin <no.email@nospam.invalid> - 2013-05-04 21:52 -0700
            Re: offtopic - Critical of the Computer Industry "Rod Pemberton" <do_not_have@notemailnotq.cpm> - 2013-05-05 18:51 -0400
              Re: offtopic - Critical of the Computer Industry rickman <gnuarm@gmail.com> - 2013-05-05 18:50 -0400
                Re: offtopic - Critical of the Computer Industry "Rod Pemberton" <do_not_have@notemailnotq.cpm> - 2013-05-05 20:13 -0400
          Re: offtopic - Critical of the Computer Industry albert@spenarnc.xs4all.nl (Albert van der Horst) - 2013-05-05 09:38 +0000
            Re: offtopic - Critical of the Computer Industry rickman <gnuarm@gmail.com> - 2013-05-05 17:00 -0400
        Re: offtopic - Critical of the Computer Industry "visualforth@rocketmail.com" <babruehl@gmail.com> - 2013-05-04 16:50 -0700
          Re: offtopic - Critical of the Computer Industry Mark Wills <markrobertwills@yahoo.co.uk> - 2013-05-05 13:02 -0700
            Re: offtopic - Critical of the Computer Industry Coos Haak <chforth@hccnet.nl> - 2013-05-05 23:14 +0200
            Re: offtopic - Critical of the Computer Industry "Elizabeth D. Rather" <erather@forth.com> - 2013-05-05 13:44 -1000
              Re: offtopic - Critical of the Computer Industry Steve <nospam275@gmail.com> - 2013-05-05 21:07 -0700
                Re: offtopic - Critical of the Computer Industry "Elizabeth D. Rather" <erather@forth.com> - 2013-05-05 19:35 -1000
                Re: offtopic - Critical of the Computer Industry Steve <nospam275@gmail.com> - 2013-05-05 23:17 -0700
                Re: offtopic - Critical of the Computer Industry Steve <nospam275@gmail.com> - 2013-05-05 23:39 -0700
            Re: offtopic - Critical of the Computer Industry visualforth@rocketmail.com - 2013-05-06 01:21 -0700
      Re: offtopic - Critical of the Computer Industry Steve <nospam275@gmail.com> - 2013-05-05 00:08 -0700
        Re: offtopic - Critical of the Computer Industry "Elizabeth D. Rather" <erather@forth.com> - 2013-05-04 21:58 -1000
          Re: offtopic - Critical of the Computer Industry Steve <nospam275@gmail.com> - 2013-05-05 06:56 -0700
          Re: offtopic - Critical of the Computer Industry "Rod Pemberton" <do_not_have@notemailnotq.cpm> - 2013-05-05 18:42 -0400
        Re: offtopic - Critical of the Computer Industry rickman <gnuarm@gmail.com> - 2013-05-05 17:11 -0400
          Re: offtopic - Critical of the Computer Industry "Rod Pemberton" <do_not_have@notemailnotq.cpm> - 2013-05-05 18:41 -0400
            Re: offtopic - Critical of the Computer Industry Paul Rubin <no.email@nospam.invalid> - 2013-05-05 15:42 -0700
            Re: offtopic - Critical of the Computer Industry Steve <nospam275@gmail.com> - 2013-05-05 20:10 -0700
              Re: offtopic - Critical of the Computer Industry "Rod Pemberton" <do_not_have@notemailnotq.cpm> - 2013-05-07 18:53 -0400
                Re: offtopic - Critical of the Computer Industry rickman <gnuarm@gmail.com> - 2013-05-07 20:59 -0400
                Re: offtopic - Critical of the Computer Industry Steve <nospam275@gmail.com> - 2013-05-07 20:24 -0700
                Re: offtopic - Critical of the Computer Industry "Rod Pemberton" <do_not_have@notemailnotq.cpm> - 2013-05-09 20:16 -0400
                Re: offtopic - Critical of the Computer Industry Steve <nospam275@gmail.com> - 2013-05-10 02:14 -0700
                Re: offtopic - Critical of the Computer Industry Paul Rubin <no.email@nospam.invalid> - 2013-05-07 20:46 -0700
                Re: offtopic - Critical of the Computer Industry "Rod Pemberton" <do_not_have@notemailnotq.cpm> - 2013-05-09 20:12 -0400
                Re: offtopic - Critical of the Computer Industry Paul Rubin <no.email@nospam.invalid> - 2013-05-11 06:23 -0700
                Re: offtopic - Critical of the Computer Industry rickman <gnuarm@gmail.com> - 2013-05-11 11:44 -0400
                Re: offtopic - Critical of the Computer Industry Paul Rubin <no.email@nospam.invalid> - 2013-05-11 13:27 -0700
                Re: offtopic - Critical of the Computer Industry rickman <gnuarm@gmail.com> - 2013-05-11 21:05 -0400
                Re: offtopic - Critical of the Computer Industry Paul Rubin <no.email@nospam.invalid> - 2013-05-11 18:27 -0700
                Re: offtopic - Critical of the Computer Industry "Rod Pemberton" <do_not_have@notemailnotq.cpm> - 2013-05-15 05:24 -0400
                Re: offtopic - Critical of the Computer Industry Paul Rubin <no.email@nospam.invalid> - 2013-05-15 10:03 -0700
                Re: offtopic - Critical of the Computer Industry "Elizabeth D. Rather" <erather@forth.com> - 2013-05-15 07:30 -1000
                Re: offtopic - Critical of the Computer Industry Paul Rubin <no.email@nospam.invalid> - 2013-05-15 10:39 -0700
                Re: offtopic - Critical of the Computer Industry "Elizabeth D. Rather" <erather@forth.com> - 2013-05-15 08:15 -1000
                Re: offtopic - Critical of the Computer Industry Paul Rubin <no.email@nospam.invalid> - 2013-05-15 22:56 -0700
                Re: offtopic - Critical of the Computer Industry "Elizabeth D. Rather" <erather@forth.com> - 2013-05-15 21:37 -1000
                Re: offtopic - Critical of the Computer Industry anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2013-05-16 14:01 +0000
                Re: offtopic - Critical of the Computer Industry "Elizabeth D. Rather" <erather@forth.com> - 2013-05-16 11:47 -1000
                Re: offtopic - Critical of the Computer Industry rickman <gnuarm@gmail.com> - 2013-05-16 23:19 -0400
                Re: offtopic - Critical of the Computer Industry "Elizabeth D. Rather" <erather@forth.com> - 2013-05-16 17:38 -1000
                Re: offtopic - Critical of the Computer Industry anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2013-05-17 13:35 +0000
                Re: offtopic - Critical of the Computer Industry "Elizabeth D. Rather" <erather@forth.com> - 2013-05-17 08:14 -1000
          Re: offtopic - Critical of the Computer Industry Steve <nospam275@gmail.com> - 2013-05-05 19:56 -0700
            Re: offtopic - Critical of the Computer Industry rickman <gnuarm@gmail.com> - 2013-05-06 13:34 -0400
    Re: offtopic - Critical of the Computer Industry Steve <nospam275@gmail.com> - 2013-05-04 23:50 -0700
  Re: offtopic - Critical of the Computer Industry Andrew Haley <andrew29@littlepinkcloud.invalid> - 2013-05-04 03:48 -0500
    Re: offtopic - Critical of the Computer Industry Bernd Paysan <bernd.paysan@gmx.de> - 2013-05-04 19:31 +0200
      Re: offtopic - Critical of the Computer Industry Paul Rubin <no.email@nospam.invalid> - 2013-05-04 11:05 -0700
      Re: offtopic - Critical of the Computer Industry Andrew Haley <andrew29@littlepinkcloud.invalid> - 2013-05-04 13:46 -0500
        Re: offtopic - Critical of the Computer Industry rickman <gnuarm@gmail.com> - 2013-05-04 16:31 -0400
          Re: offtopic - Critical of the Computer Industry Andrew Haley <andrew29@littlepinkcloud.invalid> - 2013-05-04 15:58 -0500
            Re: offtopic - Critical of the Computer Industry rickman <gnuarm@gmail.com> - 2013-05-04 17:04 -0400
              Re: offtopic - Critical of the Computer Industry Andrew Haley <andrew29@littlepinkcloud.invalid> - 2013-05-04 17:23 -0500
                Re: offtopic - Critical of the Computer Industry rickman <gnuarm@gmail.com> - 2013-05-05 10:28 -0400
              Re: offtopic - Critical of the Computer Industry Bernd Paysan <bernd.paysan@gmx.de> - 2013-05-05 01:41 +0200
                Re: offtopic - Critical of the Computer Industry Andrew Haley <andrew29@littlepinkcloud.invalid> - 2013-05-05 04:16 -0500
            Re: offtopic - Critical of the Computer Industry Mark Wills <markrobertwills@yahoo.co.uk> - 2013-05-05 12:56 -0700
              Re: offtopic - Critical of the Computer Industry Andrew Haley <andrew29@littlepinkcloud.invalid> - 2013-05-06 05:19 -0500
                Re: offtopic - Critical of the Computer Industry Mark Wills <forthfreak@gmail.com> - 2013-05-06 04:01 -0700
                Re: offtopic - Critical of the Computer Industry Andrew Haley <andrew29@littlepinkcloud.invalid> - 2013-05-06 09:48 -0500
                Re: offtopic - Critical of the Computer Industry rickman <gnuarm@gmail.com> - 2013-05-06 11:08 -0400
                Re: offtopic - Critical of the Computer Industry Andrew Haley <andrew29@littlepinkcloud.invalid> - 2013-05-06 17:21 -0500
                Re: offtopic - Critical of the Computer Industry Mark Wills <forthfreak@gmail.com> - 2013-05-06 22:58 -0700
                Re: offtopic - Critical of the Computer Industry rickman <gnuarm@gmail.com> - 2013-05-07 21:04 -0400
                Re: offtopic - Critical of the Computer Industry Andrew Haley <andrew29@littlepinkcloud.invalid> - 2013-05-08 03:02 -0500
                Re: offtopic - Critical of the Computer Industry "Rod Pemberton" <do_not_have@notemailnotq.cpm> - 2013-05-09 20:08 -0400
                Re: offtopic - Critical of the Computer Industry Alex McDonald <blog@rivadpm.com> - 2013-05-10 05:03 -0700
                Re: offtopic - Critical of the Computer Industry rickman <gnuarm@gmail.com> - 2013-05-10 11:21 -0400
                Re: offtopic - Critical of the Computer Industry "Rod Pemberton" <do_not_have@notemailnotq.cpm> - 2013-05-11 15:53 -0400
                Re: offtopic - Critical of the Computer Industry rickman <gnuarm@gmail.com> - 2013-05-11 21:07 -0400
                Re: offtopic - Critical of the Computer Industry Mark Wills <forthfreak@gmail.com> - 2013-05-06 08:29 -0700
                Re: offtopic - Critical of the Computer Industry "Rod Pemberton" <do_not_have@notemailnotq.cpm> - 2013-05-09 20:08 -0400
                Re: offtopic - Critical of the Computer Industry rickman <gnuarm@gmail.com> - 2013-05-10 11:39 -0400
                Re: offtopic - Critical of the Computer Industry "Rod Pemberton" <do_not_have@notemailnotq.cpm> - 2013-05-11 15:56 -0400
                Re: offtopic - Critical of the Computer Industry rickman <gnuarm@gmail.com> - 2013-05-11 21:14 -0400
                Re: offtopic - Critical of the Computer Industry albert@spenarnc.xs4all.nl (Albert van der Horst) - 2013-05-12 12:29 +0000
                Re: offtopic - Critical of the Computer Industry "Elizabeth D. Rather" <erather@forth.com> - 2013-05-12 08:33 -1000
                Re: offtopic - Critical of the Computer Industry "Rod Pemberton" <do_not_have@notemailnotq.cpm> - 2013-05-15 05:23 -0400
                Re: offtopic - Critical of the Computer Industry "Elizabeth D. Rather" <erather@forth.com> - 2013-05-15 07:43 -1000
                Re: offtopic - Critical of the Computer Industry Andrew Haley <andrew29@littlepinkcloud.invalid> - 2013-05-15 14:11 -0500
                Re: offtopic - Critical of the Computer Industry Elizabeth D Rather <erather@forth.com> - 2013-05-15 11:41 -1000
                Re: offtopic - Critical of the Computer Industry Brad Eckert <hwfwguy@gmail.com> - 2013-05-16 09:35 -0700
                Re: offtopic - Critical of the Computer Industry rickman <gnuarm@gmail.com> - 2013-05-16 13:50 -0400
                Re: offtopic - Critical of the Computer Industry Steve <nospam275@gmail.com> - 2013-05-19 19:34 -0700
                Re: offtopic - Critical of the Computer Industry visualforth@rocketmail.com - 2013-05-19 23:41 -0700
                Re: offtopic - Critical of the Computer Industry dirk.bruehl@usa.net - 2013-05-17 08:53 -0700
          Re: offtopic - Critical of the Computer Industry AKE <assadebrahim2000@gmail.com> - 2013-05-05 11:06 -0700
            Re: offtopic - Critical of the Computer Industry Paul Rubin <no.email@nospam.invalid> - 2013-05-05 18:56 -0700
              Re: offtopic - Critical of the Computer Industry AKE <assadebrahim2000@gmail.com> - 2013-05-06 03:56 -0700
            Re: offtopic - Critical of the Computer Industry visualforth@rocketmail.com - 2013-05-06 00:31 -0700
              Re: offtopic - Critical of the Computer Industry Steve <nospam275@gmail.com> - 2013-05-06 00:54 -0700
              Re: offtopic - Critical of the Computer Industry "Elizabeth D. Rather" <erather@forth.com> - 2013-05-05 22:06 -1000
        Re: offtopic - Critical of the Computer Industry Alex McDonald <blog@rivadpm.com> - 2013-05-05 02:43 -0700
          Re: offtopic - Critical of the Computer Industry Paul Rubin <no.email@nospam.invalid> - 2013-05-05 19:06 -0700
  Re: offtopic - Critical of the Computer Industry Steve <nospam275@gmail.com> - 2013-05-04 21:55 -0700
  Re: offtopic - Critical of the Computer Industry Doug Hoffman <glidedog@gmail.com> - 2013-05-05 07:41 -0400
  Re: offtopic - Critical of the Computer Industry Jason Damisch <jasondamisch@yahoo.com> - 2013-05-05 21:02 -0700

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