Re: Portable Assembler

Newsgroups	comp.lang.forth
Date	2017-06-09 18:38 -0700
References	(1 earlier) <71960bb7-6a65-4c72-b6fc-2f03416014ff@googlegroups.com> <ohesqt$4qp$1@dont-email.me> <ohf1h9$l9e$1@dont-email.me> <Oe2dnd9i39xlpqbEnZ2dnUU7-Y3NnZ2d@earthlink.com> <ohfhcu$3v6$1@dont-email.me>
Message-ID	<9fa6e21b-e8b2-45c8-976d-1e4597021071@googlegroups.com> (permalink)
Subject	Re: Portable Assembler
From	hughaguilar96@gmail.com

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On Friday, June 9, 2017 at 6:21:58 PM UTC-7, Cecil - k5nwa wrote:
> On 6/9/2017 7:23 PM, David Schultz wrote:
> > On 06/09/2017 03:51 PM, Cecil Bayona wrote:
> >> I decided to create an assembler from scratch, and I have spent a couple
> >> of hours on it. It's for now printing the generated code to the screen
> >> so it's easier to check but a minor change to write it to a definition.
> > 
> > I wrote a MSP430 assembler for eForth and while it isn't fully tested I
> > did use it to write and test some code.
> > 
> > The basic MSP430 instructions aren't too difficult to deal with but the
> > CPUX extensions are more trouble. So far I have just implemented a few
> > that I needed.
> 
> The MSP430 is very nice and after a couple of hours I have the 
> beginnings of an assembler starting to work, most of the time has been 
> spent on reading articles when I spend time on the project. Forth is 
> really a good tool to generate an assembler, a good deal of the things 
> needed is already inside Forth.

For the most part, I don't like CREATE DOES> --- for an assembler however, CREATE DOES> work very well!

If you wrote an assembler such as MACRO11 or MASM in an Algol-derived language, you would have to write code to parse the assembly-language source-code, which can be complicated. Also, you would have to write your own macro language, which can be complicated (that is why most assembler's macro language is very prickly and hard to use, such as in FASM).

In Forth, your outer interpreter does the parsing for you, and Forth itself is the macro language --- all in all, writing an assembler in Forth is significantly easier than in any Algol-derived language --- it might be comparably easy in Lisp, but I don't know enough about Lisp to comment on that.

Thread

Portable Assembler rickman <gnuarm@gmail.com> - 2017-06-09 14:35 -0400
  Portable Assembler Mark Wills <markwills1970@gmail.com> - 2017-06-09 11:47 -0700
    Re: Portable Assembler rickman <gnuarm@gmail.com> - 2017-06-09 15:30 -0400
      Re: Portable Assembler Cecil Bayona <cbayona@cbayona.com> - 2017-06-09 15:51 -0500
        Re: Portable Assembler rickman <gnuarm@gmail.com> - 2017-06-09 18:13 -0400
          Re: Portable Assembler foxaudioresearch@gmail.com - 2017-06-09 15:23 -0700
            Re: Portable Assembler Cecil Bayona <cbayona@cbayona.com> - 2017-06-09 20:34 -0500
              Re: Portable Assembler albert@cherry.spenarnc.xs4all.nl (Albert van der Horst) - 2017-06-10 08:36 +0200
                Re: Portable Assembler Cecil Bayona <cbayona@cbayona.com> - 2017-06-10 10:31 -0500
                Re: Portable Assembler Mark Wills <markwills1970@gmail.com> - 2017-06-11 09:07 -0700
                Re: Portable Assembler rickman <gnuarm@gmail.com> - 2017-06-11 12:36 -0400
                Re: Portable Assembler Cecil Bayona <cbayona@cbayona.com> - 2017-06-11 11:40 -0500
                Re: Portable Assembler Mark Wills <markwills1970@gmail.com> - 2017-06-12 05:30 -0700
                Re: Portable Assembler Mark Wills <markwills1970@gmail.com> - 2017-06-21 02:49 -0700
                Re: Portable Assembler foxaudioresearch@gmail.com - 2017-06-21 06:24 -0700
                Re: Portable Assembler foxaudioresearch@gmail.com - 2017-06-20 17:42 -0700
                Re: Portable Assembler albert@cherry.spenarnc.xs4all.nl (Albert van der Horst) - 2017-06-16 15:02 +0200
                Re: Portable Assembler Alex <alex@rivadpm.com> - 2017-06-16 15:09 +0100
                Re: Portable Assembler Cecil Bayona <cbayona@cbayona.com> - 2017-06-16 11:24 -0500
                Re: Portable Assembler Alex <alex@rivadpm.com> - 2017-06-16 18:04 +0100
                Re: Portable Assembler Alex <alex@rivadpm.com> - 2017-06-16 18:23 +0100
              Re: Portable Assembler Alex <alex@rivadpm.com> - 2017-06-10 11:34 +0100
                Re: Portable Assembler Cecil Bayona <cbayona@cbayona.com> - 2017-06-10 10:57 -0500
              Re: Portable Assembler stephen@mpeforth.com (Stephen Pelc) - 2017-06-10 16:47 +0000
                Re: Portable Assembler Cecil Bayona <cbayona@cbayona.com> - 2017-06-10 12:57 -0500
        Re: Portable Assembler David Schultz <abuse@127.0.0.1> - 2017-06-09 19:23 -0500
          Re: Portable Assembler Cecil Bayona <cbayona@cbayona.com> - 2017-06-09 20:21 -0500
            Re: Portable Assembler hughaguilar96@gmail.com - 2017-06-09 18:38 -0700
  Re: Portable Assembler Paul Rubin <no.email@nospam.invalid> - 2017-06-10 00:28 -0700
    Re: Portable Assembler rickman <gnuarm@gmail.com> - 2017-06-11 01:15 -0400

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