[gforth] / gforth / wordlib.fs  

gforth: gforth/wordlib.fs


1 : jwilke 1.1 \ wordlib.fs Handle shared library with forth primitive extentions 9oct97jaw
2 :    
3 : anton 1.8 \ Copyright (C) 1995,1996,1997,1998,1999,2000,2003,2007 Free Software Foundation, Inc.
4 : jwilke 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 : anton 1.7 \ as published by the Free Software Foundation, either version 3
10 : jwilke 1.1 \ 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 : anton 1.7 \ along with this program. If not, see http://www.gnu.org/licenses/.
19 : jwilke 1.1
20 :     \ Author: Jens Wilke
21 :     \ Revision Log
22 :     \ 09oct97jaw V1.0 Initial Version
23 :    
24 :     \ ToDo:
25 :     \
26 :     \ Bootup initialization
27 :     \ "require" for libs
28 :    
29 :     0 Value wlib \ temporary library handle to make live easy
30 :    
31 : jwilke 1.2 : wl-catalog ( n lib-addr -- addr | u )
32 :     s" catalog" rot lib-sym dup 0=
33 : jwilke 1.1 ABORT" No word catalog"
34 :     icall1 ;
35 :    
36 :     : wl-words ( lib-addr -- )
37 : jwilke 1.2 0
38 :     BEGIN 2dup swap wl-catalog ?dup
39 : jwilke 1.1 WHILE cell+ count type space
40 :     1+
41 : jwilke 1.2 REPEAT 2drop ;
42 : jwilke 1.1
43 :     : wl-create ( adr adr2 len2 -- )
44 :     nextname
45 :     Create ,
46 : jwilke 1.2 DOES> @ wcall ;
47 : jwilke 1.1
48 : jwilke 1.2 : wl-tovoc ( lib-addr -- )
49 : jwilke 1.1 0
50 : jwilke 1.2 BEGIN 2dup swap wl-catalog ?dup
51 : jwilke 1.1 WHILE dup @ swap cell+ count wl-create
52 :     1+
53 : jwilke 1.2 REPEAT 2drop ;
54 : jwilke 1.1
55 :     : (WordLibrary)
56 :     Create DOES> @ ;
57 :    
58 :     : WordLibrary ( "wordname" "libfilename" )
59 :     (WordLibrary)
60 :     \ open library with forth path
61 :     bl word count open-fpath-file throw rot close-file throw
62 :     \ open library with correct path
63 :     open-lib
64 : jwilke 1.2 dup 0= ABORT" Library load error"
65 :     dup ,
66 : jwilke 1.1 wl-tovoc ;

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