Re: Forth Implementations advantages and disadvantages.

Subject	Re: Forth Implementations advantages and disadvantages.
Newsgroups	comp.lang.forth
References	(2 earlier) <ogb4dg$11e$1@dont-email.me> <ogb4vt$1f4$1@dont-email.me> <ogc2ke$d2$1@dont-email.me> <ogc8td$ko1$1@dont-email.me> <ogcann$q5d$1@dont-email.me>
From	David Schultz <abuse@127.0.0.1>
Date	2017-05-27 12:24 -0500
Message-ID	<V82dnfsErojxK7TEnZ2dnUU7-RGdnZ2d@earthlink.com> (permalink)

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On 05/27/2017 11:53 AM, Cecil Bayona wrote:
> Actually Mecrisp is not a great example, assembler is the least portable
> method there is, if it were in C one would use the built in libraries to
> setup the clock, and do I/O, part of that is telling the C compiler what
> device you are compiling it for and the C compiler will take care of the
> differences assembler does not do that for you.
> 
> I currently use C and Pascal with embedded CPUs, switching chips used is
> not a major problem, part of the project settings is identifying the CPU
> used and the compiler takes care of the details. So this is a minor
> issue, that is one reason for using C one can re-compile software for
> different CPUs with at most minor software changes, the big minus is
> that it's not as fast as assembler, with a lot of CPUs it's still fast
> enough so not big deal.
> 

This makes no sense to me at all.

The C compiler knows nothing about the hardware, all it knows is how to
generate code for the CPU. The care and feeding of things like UARTS is
up to the user.

You might get lucky and find that someone else has already written code
to make a UART dance the way you want it to but that isn't likely.

Worse, the CPUs have supporting hardware (clock generation, etc.) that
can vary between devices. The compiler has no clue.

My C code startup looks a lot like my assembly code startup for the
MSP430. Turn off the watch dog, configure the clocks, start a timer,
etc. They are both equally portable between devices, ie. not very.

-- 
David W. Schultz
http://home.earthlink.net/~david.schultz
"Life without stock is barely worth living..." - Anthony Bourdain

Thread

Forth Implementations advantages and disadvantages. Cecil Bayona <cbayona@cbayona.com> - 2017-05-26 14:49 -0500
  Re: Forth Implementations advantages and disadvantages. minforth@arcor.de - 2017-05-26 13:17 -0700
    Re: Forth Implementations advantages and disadvantages. Cecil Bayona <cbayona@cbayona.com> - 2017-05-26 17:53 -0500
      Re: Forth Implementations advantages and disadvantages. Raimond Dragomir <raimond.dragomir@gmail.com> - 2017-05-26 22:31 -0700
        Re: Forth Implementations advantages and disadvantages. Cecil Bayona <cbayona@cbayona.com> - 2017-05-27 00:57 -0500
  Re: Forth Implementations advantages and disadvantages. rickman <gnuarm@gmail.com> - 2017-05-27 01:09 -0400
    Re: Forth Implementations advantages and disadvantages. Cecil Bayona <cbayona@cbayona.com> - 2017-05-27 00:59 -0500
      Re: Forth Implementations advantages and disadvantages. rickman <gnuarm@gmail.com> - 2017-05-27 02:09 -0400
        Re: Forth Implementations advantages and disadvantages. Cecil Bayona <cbayona@cbayona.com> - 2017-05-27 09:35 -0500
          Re: Forth Implementations advantages and disadvantages. rickman <gnuarm@gmail.com> - 2017-05-27 12:22 -0400
            Re: Forth Implementations advantages and disadvantages. Cecil Bayona <cbayona@cbayona.com> - 2017-05-27 11:53 -0500
              Re: Forth Implementations advantages and disadvantages. rickman <gnuarm@gmail.com> - 2017-05-27 13:13 -0400
              Re: Forth Implementations advantages and disadvantages. David Schultz <abuse@127.0.0.1> - 2017-05-27 12:24 -0500
                Re: Forth Implementations advantages and disadvantages. Cecil Bayona <cbayona@cbayona.com> - 2017-05-27 13:13 -0500
                Re: Forth Implementations advantages and disadvantages. David Schultz <abuse@127.0.0.1> - 2017-05-27 13:33 -0500
                Re: Forth Implementations advantages and disadvantages. rickman <gnuarm@gmail.com> - 2017-05-27 14:53 -0400
                Re: Forth Implementations advantages and disadvantages. Cecil Bayona <cbayona@cbayona.com> - 2017-05-27 14:44 -0500
                Re: Forth Implementations advantages and disadvantages. albert@cherry.spenarnc.xs4all.nl (Albert van der Horst) - 2017-05-28 10:09 +0200
                Re: Forth Implementations advantages and disadvantages. rickman <gnuarm@gmail.com> - 2017-05-28 12:57 -0400
                Re: Forth Implementations advantages and disadvantages. Cecil Bayona <cbayona@cbayona.com> - 2017-05-28 12:14 -0500
                Re: Forth Implementations advantages and disadvantages. Paul Rubin <no.email@nospam.invalid> - 2017-05-28 16:11 -0700
                Re: Forth Implementations advantages and disadvantages. rickman <gnuarm@gmail.com> - 2017-05-29 02:11 -0400
                Re: Forth Implementations advantages and disadvantages. Cecil Bayona <cbayona@cbayona.com> - 2017-05-29 01:54 -0500
                Re: Forth Implementations advantages and disadvantages. rickman <gnuarm@gmail.com> - 2017-05-29 03:22 -0400
    Re: Forth Implementations advantages and disadvantages. Joel Rees <joel.rees@gmail.com> - 2017-05-28 15:46 -0700
  Re: Forth Implementations advantages and disadvantages. Andrew Haley <andrew29@littlepinkcloud.invalid> - 2017-05-27 01:23 -0500
    Re: Forth Implementations advantages and disadvantages. Cecil Bayona <cbayona@cbayona.com> - 2017-05-27 09:29 -0500
      Re: Forth Implementations advantages and disadvantages. Paul Rubin <no.email@nospam.invalid> - 2017-05-27 11:36 -0700
        Re: Forth Implementations advantages and disadvantages. Cecil Bayona <cbayona@cbayona.com> - 2017-05-27 14:25 -0500
      Re: Forth Implementations advantages and disadvantages. Rod Pemberton <NeedNotReplyHere@xrsevnneqk.cem> - 2017-05-27 21:58 -0400
    Re: Forth Implementations advantages and disadvantages. hughaguilar96@gmail.com - 2017-05-27 11:20 -0700
      Re: Forth Implementations advantages and disadvantages. rickman <gnuarm@gmail.com> - 2017-05-27 15:20 -0400
      Re: Forth Implementations advantages and disadvantages. Cecil Bayona <cbayona@cbayona.com> - 2017-05-27 14:20 -0500
        Re: Forth Implementations advantages and disadvantages. rickman <gnuarm@gmail.com> - 2017-05-27 18:33 -0400
          Re: Forth Implementations advantages and disadvantages. Cecil Bayona <cbayona@cbayona.com> - 2017-05-27 18:50 -0500
            Re: Forth Implementations advantages and disadvantages. rickman <gnuarm@gmail.com> - 2017-05-27 20:13 -0400
          Re: Forth Implementations advantages and disadvantages. albert@cherry.spenarnc.xs4all.nl (Albert van der Horst) - 2017-05-28 10:23 +0200
            Re: Forth Implementations advantages and disadvantages. Cecil Bayona <cbayona@cbayona.com> - 2017-05-28 12:26 -0500
              Re: Forth Implementations advantages and disadvantages. Andrew Haley <andrew29@littlepinkcloud.invalid> - 2017-05-30 04:22 -0500
                Re: Forth Implementations advantages and disadvantages. albert@cherry.spenarnc.xs4all.nl (Albert van der Horst) - 2017-05-30 11:49 +0200
                Re: Forth Implementations advantages and disadvantages. Andrew Haley <andrew29@littlepinkcloud.invalid> - 2017-05-30 05:07 -0500
                Re: Forth Implementations advantages and disadvantages. Lars Brinkhoff <lars.spam@nocrew.org> - 2017-05-30 18:58 +0200
            Re: Forth Implementations advantages and disadvantages. Cecil Bayona <cbayona@cbayona.com> - 2017-05-28 12:28 -0500
              Re: Forth Implementations advantages and disadvantages. albert@cherry.spenarnc.xs4all.nl (Albert van der Horst) - 2017-05-28 20:14 +0200
                Re: Forth Implementations advantages and disadvantages. Cecil Bayona <cbayona@cbayona.com> - 2017-05-28 14:08 -0500
                Re: Forth Implementations advantages and disadvantages. albert@cherry.spenarnc.xs4all.nl (Albert van der Horst) - 2017-05-29 10:52 +0200
                Re: Forth Implementations advantages and disadvantages. Cecil Bayona <cbayona@cbayona.com> - 2017-05-29 12:50 -0500
                Re: Forth Implementations advantages and disadvantages. Alex <alex@rivadpm.com> - 2017-05-29 19:06 +0100
        Re: Forth Implementations advantages and disadvantages. hughaguilar96@gmail.com - 2017-05-27 20:00 -0700
          Re: Forth Implementations advantages and disadvantages. Cecil Bayona <cbayona@cbayona.com> - 2017-05-27 22:29 -0500
            Re: Forth Implementations advantages and disadvantages. hughaguilar96@gmail.com - 2017-05-27 22:10 -0700
              Re: Forth Implementations advantages and disadvantages. Cecil Bayona <cbayona@cbayona.com> - 2017-05-28 11:22 -0500
                Re: Forth Implementations advantages and disadvantages. hughaguilar96@gmail.com - 2017-05-28 14:45 -0700
                Re: Forth Implementations advantages and disadvantages. hughaguilar96@gmail.com - 2017-05-28 18:25 -0700
                Re: Forth Implementations advantages and disadvantages. Cecil Bayona <cbayona@cbayona.com> - 2017-05-28 21:43 -0500
                Re: Forth Implementations advantages and disadvantages. Cecil Bayona <cbayona@cbayona.com> - 2017-06-01 11:27 -0500
                Re: Forth Implementations advantages and disadvantages. rickman <gnuarm@gmail.com> - 2017-06-01 12:50 -0400
                Re: Forth Implementations advantages and disadvantages. Cecil Bayona <cbayona@cbayona.com> - 2017-06-01 12:47 -0500
                Re: Forth Implementations advantages and disadvantages. rickman <gnuarm@gmail.com> - 2017-06-01 16:23 -0400
                Re: Forth Implementations advantages and disadvantages. rickman <gnuarm@gmail.com> - 2017-06-01 16:32 -0400
                Re: Forth Implementations advantages and disadvantages. hughaguilar96@gmail.com - 2017-06-01 12:08 -0700
                Re: Forth Implementations advantages and disadvantages. Cecil Bayona <cbayona@cbayona.com> - 2017-06-01 21:47 -0500
                Re: Forth Implementations advantages and disadvantages. hughaguilar96@gmail.com - 2017-06-02 06:34 -0700
                Re: Forth Implementations advantages and disadvantages. foxaudioresearch@gmail.com - 2017-06-02 07:13 -0700
                Re: Forth Implementations advantages and disadvantages. hughaguilar96@gmail.com - 2017-06-02 07:57 -0700
                Re: Forth Implementations advantages and disadvantages. albert@cherry.spenarnc.xs4all.nl (Albert van der Horst) - 2017-06-03 02:17 +0200
                Re: Forth Implementations advantages and disadvantages. Cecil Bayona <cbayona@cbayona.com> - 2017-05-28 21:07 -0500
                Re: Forth Implementations advantages and disadvantages. hughaguilar96@gmail.com - 2017-05-28 21:48 -0700
                Re: Forth Implementations advantages and disadvantages. Cecil Bayona <cbayona@cbayona.com> - 2017-05-29 00:52 -0500
                Re: Forth Implementations advantages and disadvantages. hughaguilar96@gmail.com - 2017-05-29 09:17 -0700
                Re: Forth Implementations advantages and disadvantages. Cecil Bayona <cbayona@cbayona.com> - 2017-05-29 12:16 -0500
                Re: Forth Implementations advantages and disadvantages. hughaguilar96@gmail.com - 2017-05-29 19:21 -0700
                Re: Forth Implementations advantages and disadvantages. Cecil Bayona <cbayona@cbayona.com> - 2017-05-29 23:13 -0500
                Re: Forth Implementations advantages and disadvantages. Paul Rubin <no.email@nospam.invalid> - 2017-05-30 01:07 -0700
                Re: Forth Implementations advantages and disadvantages. Alex <alex@rivadpm.com> - 2017-05-30 15:54 +0100
                Re: Forth Implementations advantages and disadvantages. Alex <alex@rivadpm.com> - 2017-05-29 19:02 +0100
                Re: Forth Implementations advantages and disadvantages. Raimond Dragomir <raimond.dragomir@gmail.com> - 2017-05-29 11:06 -0700
                Re: Forth Implementations advantages and disadvantages. hughaguilar96@gmail.com - 2017-05-29 19:29 -0700
                Re: Forth Implementations advantages and disadvantages. Cecil Bayona <cbayona@cbayona.com> - 2017-05-29 23:01 -0500
                Re: Forth Implementations advantages and disadvantages. hughaguilar96@gmail.com - 2017-05-30 14:53 -0700
                Re: Forth Implementations advantages and disadvantages. Paul Rubin <no.email@nospam.invalid> - 2017-05-29 13:59 -0700
                Re: Forth Implementations advantages and disadvantages. Cecil Bayona <cbayona@cbayona.com> - 2017-05-29 17:03 -0500
                Re: Forth Implementations advantages and disadvantages. hughaguilar96@gmail.com - 2017-05-29 19:37 -0700
                Re: Forth Implementations advantages and disadvantages. Cecil Bayona <cbayona@cbayona.com> - 2017-05-29 22:52 -0500
            Re: Forth Implementations advantages and disadvantages. Mark Wills <markwills1970@gmail.com> - 2017-05-28 11:49 -0700
              Re: Forth Implementations advantages and disadvantages. Cecil Bayona <cbayona@cbayona.com> - 2017-05-28 14:12 -0500
              Re: Forth Implementations advantages and disadvantages. rickman <gnuarm@gmail.com> - 2017-05-29 02:35 -0400
          Re: Forth Implementations advantages and disadvantages. jim.brakefield@ieee.org - 2017-05-27 21:04 -0700
            Re: Forth Implementations advantages and disadvantages. hughaguilar96@gmail.com - 2017-05-27 21:56 -0700
              Re: Forth Implementations advantages and disadvantages. jim.brakefield@ieee.org - 2017-05-28 01:10 -0700
                Re: Forth Implementations advantages and disadvantages. rickman <gnuarm@gmail.com> - 2017-05-28 13:21 -0400
                Re: Forth Implementations advantages and disadvantages. jim.brakefield@ieee.org - 2017-05-28 11:53 -0700
                Re: Forth Implementations advantages and disadvantages. hughaguilar96@gmail.com - 2017-05-28 15:09 -0700
                Re: Forth Implementations advantages and disadvantages. rickman <gnuarm@gmail.com> - 2017-05-29 02:40 -0400
                Re: Forth Implementations advantages and disadvantages. jim.brakefield@ieee.org - 2017-05-29 13:10 -0700
                Re: Forth Implementations advantages and disadvantages. rickman <gnuarm@gmail.com> - 2017-05-30 00:57 -0400
          Re: Forth Implementations advantages and disadvantages. rickman <gnuarm@gmail.com> - 2017-05-28 02:17 -0400
            Re: Forth Implementations advantages and disadvantages. Cecil Bayona <cbayona@cbayona.com> - 2017-05-28 11:50 -0500
              Re: Forth Implementations advantages and disadvantages. rickman <gnuarm@gmail.com> - 2017-05-28 13:52 -0400
                Re: Forth Implementations advantages and disadvantages. Cecil Bayona <cbayona@cbayona.com> - 2017-05-28 13:47 -0500
                Re: Forth Implementations advantages and disadvantages. rickman <gnuarm@gmail.com> - 2017-05-29 03:19 -0400
              Re: Forth Implementations advantages and disadvantages. hughaguilar96@gmail.com - 2017-05-28 15:40 -0700
  Re: Forth Implementations advantages and disadvantages. Joel Rees <joel.rees@gmail.com> - 2017-05-28 16:31 -0700
    Re: Forth Implementations advantages and disadvantages. Joel Rees <joel.rees@gmail.com> - 2017-05-28 20:17 -0700
      Opinions on a C language header for words? Joel Rees <joel.rees@gmail.com> - 2017-05-28 21:38 -0700

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