[gforth] / gforth / stuff.fs  

gforth: gforth/stuff.fs


1 : anton 1.1 \ miscelleneous words
2 :    
3 : anton 1.7 \ Copyright (C) 1996,1997,1998 Free Software Foundation, Inc.
4 : anton 1.1
5 :     \ This file is part of Gforth.
6 :    
7 :     \ Gforth is free software; you can redistribute it and/or
8 :     \ modify it under the terms of the GNU General Public License
9 :     \ as published by the Free Software Foundation; either version 2
10 :     \ of the License, or (at your option) any later version.
11 :    
12 :     \ This program is distributed in the hope that it will be useful,
13 :     \ but WITHOUT ANY WARRANTY; without even the implied warranty of
14 :     \ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 :     \ GNU General Public License for more details.
16 :    
17 :     \ You should have received a copy of the GNU General Public License
18 :     \ along with this program; if not, write to the Free Software
19 :     \ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 :    
21 : anton 1.6 ' require alias needs ( ... "name" -- ... ) \ gforth
22 :     \G an alias for @code{require}; exists on other systems (e.g., Win32Forth).
23 : anton 1.1 \ needs is an F-PC name. we will probably switch to 'needs' in the future
24 :    
25 :     \ a little more compiler security
26 :    
27 :     \ currently not used by Gforth, but maybe by add-ons e.g., the 486asm
28 :     AUser CSP
29 :    
30 :     : !CSP ( -- )
31 :     sp@ csp ! ;
32 :    
33 :     : ?CSP ( -- )
34 :     sp@ csp @ <> -22 and throw ;
35 : anton 1.2
36 : anton 1.4 \ DMIN and DMAX
37 :    
38 : anton 1.2 : dmin ( d1 d2 -- d ) \ double
39 : pazsan 1.5 2over 2over d> IF 2swap THEN 2drop ;
40 : anton 1.2
41 :     : dmax ( d1 d2 -- d ) \ double
42 : pazsan 1.5 2over 2over d< IF 2swap THEN 2drop ;
43 : anton 1.4
44 :     \ shell commands
45 :    
46 :     0 Value $?
47 :    
48 :     : system ( addr u -- ) \ gforth
49 :     (system) throw TO $? ;
50 :     : sh ( "..." -- ) \ gforth
51 :     '# parse cr system ;
52 :    

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