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Annotation of gforth/savesys.fs, revision 1.1

1.1     ! anton       1: \ image dump                                           15nov94py
        !             2: 
        !             3: \ Copyright (C) 1995 Free Software Foundation, Inc.
        !             4: 
        !             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: : save-string-dict { addr1 u -- addr2 u }
        !            22:     here { addr2 }
        !            23:     u allot
        !            24:     addr1 addr2 u move
        !            25:     addr2 u ;
        !            26: 
        !            27: : update-image-included-files ( -- )
        !            28:     included-files 2@ { addr cnt }
        !            29:     image-included-files 2@ { old-addr old-cnt }
        !            30:     align here { new-addr }
        !            31:     cnt 2* cells allot
        !            32:     new-addr cnt image-included-files 2!
        !            33:     old-addr new-addr old-cnt 2* cells move
        !            34:     cnt old-cnt
        !            35:     U+DO
        !            36:         addr i 2* cells + 2@ save-string-dict
        !            37:        new-addr i 2* cells + 2!
        !            38:     LOOP
        !            39:     maxalign ;
        !            40: 
        !            41: : dump-fi ( addr u -- )
        !            42:     w/o bin create-file throw >r
        !            43:     update-image-included-files
        !            44:     here forthstart - forthstart 2 cells + !
        !            45:     forthstart
        !            46:     begin \ search for start of file ("#! " at a multiple of 8)
        !            47:        8 -
        !            48:        dup 3 s" #! " compare 0=
        !            49:     until ( imagestart )
        !            50:     here over - r@ write-file throw
        !            51:     r> close-file throw ;
        !            52: 
        !            53: : savesystem ( "name" -- ) \ gforth
        !            54:     name dump-fi ;