Re: I need a real big data stack

From	anton@mips.complang.tuwien.ac.at (Anton Ertl)
Newsgroups	comp.lang.forth
Subject	Re: I need a real big data stack
Date	2016-01-21 13:53 +0000
Organization	Institut fuer Computersprachen, Technische Universitaet Wien
Message-ID	<2016Jan21.145354@mips.complang.tuwien.ac.at> (permalink)
References	<cf4ff4b0-ddcc-4d67-b5f5-e1c59ea02b1a@googlegroups.com> <8PGdnW9I5ZxtfgLLnZ2dnUU7-Yf46u6z@supernews.com> <234d6315-f6ac-4e11-9f83-31e4d360b33e@googlegroups.com>

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lehs <skydda.barnen@gmail.com> writes:
>How to put the stack in unused indefinite memory? In GForth there seems to be some control that abort if the number on the stack is greater than the stack first implemented in the dictionary. Even if the stack is reallocated thru variables as s0 and sp0.

Gforth has two mechanisms for checking the stack depth: 

1) Unaccessible guard pages around the stacks on decent OSs; these
should not play a role here.

2) It calls ?STACK on between any two words proecessed by the text
interpreter.  ?STACK compares sp@ against sp0.  So if you want to
setup your own stack, you need to change them both, e.g.:

: new-data-stack ( u -- )
  dup aligned allocate throw + dup sp0 ! sp! ;
1000000 new-data-stack

But the -d option is better because it still gives you guard page
protection, while option 2 does not.

- anton
-- 
M. Anton Ertl  http://www.complang.tuwien.ac.at/anton/home.html
comp.lang.forth FAQs: http://www.complang.tuwien.ac.at/forth/faq/toc.html
     New standard: http://www.forth200x.org/forth200x.html
   EuroForth 2015: http://www.rigwit.co.uk/EuroForth2015/

Thread

I need a real big data stack lehs <skydda.barnen@gmail.com> - 2016-01-20 10:19 -0800
  Re: I need a real big data stack "Elizabeth D. Rather" <erather@forth.com> - 2016-01-20 09:45 -1000
    Re: I need a real big data stack lehs <skydda.barnen@gmail.com> - 2016-01-20 12:33 -0800
      Re: I need a real big data stack anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2016-01-21 13:53 +0000
        Re: I need a real big data stack lehs <skydda.barnen@gmail.com> - 2016-02-13 09:41 -0800
          Re: I need a real big data stack anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2016-02-14 15:09 +0000
            Re: I need a real big data stack lehs <skydda.barnen@gmail.com> - 2016-02-14 11:11 -0800
              Re: I need a real big data stack Coos Haak <chforth@hccnet.nl> - 2016-02-14 20:41 +0100
                Re: I need a real big data stack lehs <skydda.barnen@gmail.com> - 2016-02-14 14:24 -0800
  Re: I need a real big data stack Whammo <sidciavic@gmail.com> - 2016-01-20 11:46 -0800
    Re: I need a real big data stack lehs <skydda.barnen@gmail.com> - 2016-01-20 12:36 -0800
      Re: I need a real big data stack Whammo <sidciavic@gmail.com> - 2016-01-21 19:12 -0800
        Re: I need a real big data stack lehs <skydda.barnen@gmail.com> - 2016-01-22 02:25 -0800
    Re: I need a real big data stack lehs <skydda.barnen@gmail.com> - 2016-01-20 12:38 -0800
  Re: I need a real big data stack Pablo Hugo Reda <pabloreda@gmail.com> - 2016-01-20 12:04 -0800
  Re: I need a real big data stack Jan Coombs <jenfhaomndgfwutc@murmic.plus.com> - 2016-01-20 20:15 +0000
    Re: I need a real big data stack lehs <skydda.barnen@gmail.com> - 2016-01-20 12:40 -0800
      Re: I need a real big data stack Jan Coombs <jenfhaomndgfwutc@murmic.plus.com> - 2016-01-21 00:00 +0000
      Re: I need a real big data stack Paul Rubin <no.email@nospam.invalid> - 2016-01-20 17:42 -0800
        Re: I need a real big data stack Albert van der Horst <albert@spenarnc.xs4all.nl> - 2016-01-21 10:45 +0000
          Re: I need a real big data stack Paul Rubin <no.email@nospam.invalid> - 2016-01-21 10:41 -0800
            Re: I need a real big data stack "Elizabeth D. Rather" <erather@forth.com> - 2016-01-21 09:02 -1000
              Re: I need a real big data stack hughaguilar96@gmail.com - 2016-01-21 16:42 -0800
            Re: I need a real big data stack lehs <skydda.barnen@gmail.com> - 2016-01-21 15:24 -0800
              Re: I need a real big data stack Albert van der Horst <albert@spenarnc.xs4all.nl> - 2016-01-22 01:13 +0000
                Re: I need a real big data stack hughaguilar96@gmail.com - 2016-01-21 17:53 -0800
                Re: I need a real big data stack Julian Fondren <julian.fondren@gmail.com> - 2016-01-21 19:09 -0800
                Re: I need a real big data stack Albert van der Horst <albert@spenarnc.xs4all.nl> - 2016-01-22 15:24 +0000
                Re: I need a real big data stack Albert van der Horst <albert@spenarnc.xs4all.nl> - 2016-01-22 15:16 +0000
                Re: I need a real big data stack "Elizabeth D. Rather" <erather@forth.com> - 2016-01-22 09:07 -1000
                Re: I need a real big data stack Coos Haak <chforth@hccnet.nl> - 2016-01-22 15:03 +0100
    Re: I need a real big data stack Albert van der Horst <albert@spenarnc.xs4all.nl> - 2016-01-21 10:36 +0000
  Re: I need a real big data stack anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2016-01-21 13:32 +0000
    Re: I need a real big data stack Ron Aaron <rambamist@gmail.com> - 2016-01-21 15:51 +0200
    Re: I need a real big data stack lehs <skydda.barnen@gmail.com> - 2016-01-21 15:20 -0800
      Re: I need a real big data stack anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2016-01-22 15:28 +0000

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