[gforth] / gforth / savesys.fs  

gforth: gforth/savesys.fs


1 : anton 1.1 \ image dump 15nov94py
2 :    
3 : anton 1.14 \ Copyright (C) 1995,1997,2003,2006,2007,2010 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 : anton 1.11 \ as published by the Free Software Foundation, either version 3
10 : anton 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 1.11 \ along with this program. If not, see http://www.gnu.org/licenses/.
19 : anton 1.1
20 : anton 1.9 : delete-prefix ( c-addr1 u1 c-addr2 u2 -- c-addr3 u3 )
21 :     \ if c-addr2 u2 is a prefix of c-addr1 u1, delete it
22 :     2over 2over string-prefix? if
23 :     nip /string
24 :     else
25 :     2drop
26 :     endif ;
27 :    
28 : anton 1.1 : update-image-included-files ( -- )
29 :     included-files 2@ { addr cnt }
30 :     image-included-files 2@ { old-addr old-cnt }
31 :     align here { new-addr }
32 :     cnt 2* cells allot
33 :     new-addr cnt image-included-files 2!
34 :     old-addr new-addr old-cnt 2* cells move
35 :     cnt old-cnt
36 :     U+DO
37 : anton 1.9 addr i 2* cells + 2@
38 :     s" GFORTHDESTDIR" getenv delete-prefix save-mem-dict
39 : anton 1.1 new-addr i 2* cells + 2!
40 :     LOOP
41 :     maxalign ;
42 :    
43 :     : dump-fi ( addr u -- )
44 :     w/o bin create-file throw >r
45 :     update-image-included-files
46 : anton 1.5 update-image-order
47 : anton 1.1 here forthstart - forthstart 2 cells + !
48 :     forthstart
49 :     begin \ search for start of file ("#! " at a multiple of 8)
50 :     8 -
51 : anton 1.4 dup 3 s" #! " str=
52 : anton 1.1 until ( imagestart )
53 :     here over - r@ write-file throw
54 :     r> close-file throw ;
55 :    
56 :     : savesystem ( "name" -- ) \ gforth
57 :     name dump-fi ;

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