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Groups > comp.lang.forth > #19797

Re: Locals with a broader scope

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Andrew Haley wrote:
> Well, I know what you mean, kinda sorta, but the world has changed.
> Processors with more than one core are common now, even in many
> embedded designs.  To program such computers effectively really
> requires multi-tasking and re-eentrant coding.  That standard Forth
> still doesn't address this is a shortcoming.

Standard Forth has no multitasking wordset.  There is some common practise, 
and for task-specific variables, we use USER <name>.

I tend to use current-object OOP for this purpose.  The current object is in 
a user variable or register (depends on what is available), and points to a 
structure; polymorphic methods aren't needed for that; the access is similar 
to normal variables (could also be locals with auto-fetch and to).

We should accept that any scope bigger than a single word in Forth is 
indeterminated, so it should be a (potentially) long-living object that 
contains those information.

-- 
Bernd Paysan
"If you want it done right, you have to do it yourself"
http://bernd-paysan.de/

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Locals with a broader scope Brad Eckert <hwfwguy@gmail.com> - 2013-02-16 10:40 -0800
  Re: Locals with a broader scope Brad Eckert <hwfwguy@gmail.com> - 2013-02-16 13:50 -0800
    Re: Locals with a broader scope anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2013-02-17 13:24 +0000
      Re: Locals with a broader scope Andrew Haley <andrew29@littlepinkcloud.invalid> - 2013-02-17 09:47 -0600
        Re: Locals with a broader scope anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2013-02-18 13:40 +0000
    Re: Locals with a broader scope "Elizabeth D. Rather" <erather@forth.com> - 2013-02-17 21:34 -1000
      Re: Locals with a broader scope Andrew Haley <andrew29@littlepinkcloud.invalid> - 2013-02-18 03:29 -0600
        Re: Locals with a broader scope Bernd Paysan <bernd.paysan@gmx.de> - 2013-02-18 17:29 +0100
      Re: Locals with a broader scope albert@spenarnc.xs4all.nl (Albert van der Horst) - 2013-02-18 12:05 +0000
      Re: Locals with a broader scope anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2013-02-18 14:39 +0000
        Re: Locals with a broader scope Brad Eckert <hwfwguy@gmail.com> - 2013-02-18 09:04 -0800
          Re: Locals with a broader scope Percy <percival.andrews@gmail.com> - 2013-02-19 02:33 -0800
            Re: Locals with a broader scope anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2013-02-19 11:25 +0000
              Re: Locals with a broader scope Andrew Haley <andrew29@littlepinkcloud.invalid> - 2013-02-19 11:42 -0600
  Re: Locals with a broader scope Bernd Paysan <bernd.paysan@gmx.de> - 2013-02-17 02:00 +0100
  Re: Locals with a broader scope Doug Hoffman <glidedog@gmail.com> - 2013-02-17 16:51 -0500
    Re: Locals with a broader scope "A. K." <akk@nospam.org> - 2013-02-18 07:58 +0100
  Re: Locals with a broader scope Brad Eckert <hwfwguy@gmail.com> - 2013-02-19 09:20 -0800
  Re: Locals with a broader scope Brad Eckert <hwfwguy@gmail.com> - 2013-02-22 08:27 -0800

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