Diff for /gforth/environ.fs between versions 1.3 and 1.14

version 1.3, 1994/11/17 15:53:11 version 1.14, 1997/08/31 19:31:28
Line 1 Line 1
 \ environmental queries  \ environmental queries
   
   \ Copyright (C) 1995 Free Software Foundation, Inc.
   
   \ This file is part of Gforth.
   
   \ Gforth is free software; you can redistribute it and/or
   \ modify it under the terms of the GNU General Public License
   \ as published by the Free Software Foundation; either version 2
   \ of the License, or (at your option) any later version.
   
   \ This program is distributed in the hope that it will be useful,
   \ but WITHOUT ANY WARRANTY; without even the implied warranty of
   \ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   \ GNU General Public License for more details.
   
   \ You should have received a copy of the GNU General Public License
   \ along with this program; if not, write to the Free Software
   \ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
   
 \ wordlist constant environment-wordlist  \ wordlist constant environment-wordlist
   
 Create environment-wordlist  wordlist drop  Create environment-wordlist  wordlist drop
   
 : environment? ( c-addr u -- false / ... true )  : environment? ( c-addr u -- false / ... true ) \ core environment-query
     environment-wordlist search-wordlist if      environment-wordlist search-wordlist if
         execute true          execute true
     else      else
         false          false
     endif ;      endif ;
   
   : e? name environment? ; immediate
   
   : has? name environment? IF ELSE false THEN ;
   
   : $has? environment? IF ELSE false THEN ;
   
 environment-wordlist set-current  environment-wordlist set-current
 get-order environment-wordlist swap 1+ set-order  get-order environment-wordlist swap 1+ set-order
   
Line 18  get-order environment-wordlist swap 1+ s Line 42  get-order environment-wordlist swap 1+ s
   
 \ this should be computed in C as CHAR_BITS/sizeof(char),  \ this should be computed in C as CHAR_BITS/sizeof(char),
 \ but I don't know any machine with gcc where an au does not have 8 bits.  \ but I don't know any machine with gcc where an au does not have 8 bits.
 8 constant ADDRESS-UNIT-BITS  8 constant ADDRESS-UNIT-BITS ( -- n ) \ environment
 1 ADDRESS-UNIT-BITS chars lshift 1- constant MAX-CHAR  1 ADDRESS-UNIT-BITS chars lshift 1- constant MAX-CHAR
 MAX-CHAR constant /COUNTED-STRING  MAX-CHAR constant /COUNTED-STRING
 ADDRESS-UNIT-BITS cells 2* 2 + constant /HOLD  ADDRESS-UNIT-BITS cells 2* 2 + constant /HOLD
 &84 constant /PAD  &84 constant /PAD
 true constant CORE  true constant CORE
 \ CORE-EXT?  true constant CORE-EXT
 1 -3 mod 0< constant FLOORED  1 -3 mod 0< constant FLOORED
   
 1 ADDRESS-UNIT-BITS cells 1- lshift 1- constant MAX-N  1 ADDRESS-UNIT-BITS cells 1- lshift 1- constant MAX-N
Line 33  true constant CORE Line 57  true constant CORE
 -1 MAX-N 2constant MAX-D  -1 MAX-N 2constant MAX-D
 -1. 2constant MAX-UD  -1. 2constant MAX-UD
   
 0 0 2constant gforth \ minor mayor version  version-string 2constant gforth \ version string (for versions>0.3.0)
   \ the version strings of the various versions are guaranteed to be
 \ !! RETURN-STACK-CELLS  \ sorted lexicographically
 \ !! STACK-CELLS  
   : return-stack-cells ( -- n )
       [ forthstart 6 cells + ] literal @ cell / ;
   
   : stack-cells ( -- n )
       [ forthstart 4 cells + ] literal @ cell / ;
   
   : floating-stack ( -- n )
       [ forthstart 5 cells + ] literal @
       [IFDEF] float  float  [ELSE]  [ 1 floats ] Literal [THEN] / ;
   
   \ !! max-float
   15 constant #locals \ 1000 64 /
       \ One local can take up to 64 bytes, the size of locals-buffer is 1000
   maxvp constant wordlists
   
 forth definitions  forth definitions
 previous  previous

Removed from v.1.3  
changed lines
  Added in v.1.14


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