Annotation of gforth/fi2c.fs, revision 1.2

1.1       pazsan      1: \ Convert image to C include file
                      2: 
1.2     ! anton       3: \ Copyright (C) 1998 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: 
1.1       pazsan     21: 0 Value image
                     22: 0 Value bitmap
                     23: 
                     24: Create magicbuf 8 allot
                     25: 
                     26: : search-magic ( fd -- )  >r
                     27:     BEGIN  magicbuf 8 r@ read-file throw  8 =  WHILE
                     28:        magicbuf s" Gforth1" tuck compare 0=  UNTIL
                     29:     ELSE  true abort" No magic found"  THEN
                     30:     rdrop ;
                     31: 
                     32: Create image-header  4 cells allot
                     33: Variable image-cells
                     34: Variable bitmap-chars
                     35: 
                     36: : read-header ( fd -- )
                     37:     image-header 4 cells rot read-file throw drop
                     38:     image-header 2 cells + @ dup cell / image-cells ! 1- 8 cells / 1+ bitmap-chars !
                     39:     image-cells @ cells allocate throw to image
                     40:     bitmap-chars @ allocate throw to bitmap ;
                     41: 
                     42: : read-dictionary ( fd -- )  >r
                     43:     image image-cells @ cells r> read-file throw drop ;
                     44: 
                     45: : read-bitmap ( fd -- )  >r
                     46:     bitmap bitmap-chars @ r> read-file throw drop ;
                     47: 
                     48: : .08x ( n -- ) 0 <# # # # # # # # # 'x hold '0 hold #> type ;
                     49: : .02x ( n -- ) 0 <# # # 'x hold '0 hold #> type ;
                     50: 
                     51: : .image ( -- )
                     52:     image-cells @ 0 ?DO
                     53:        I 4 + I' min I ?DO  space image I cells + @ .08x ." ," LOOP cr
                     54:        4 +LOOP ;
                     55: 
                     56: : .reloc ( -- )
                     57:     bitmap-chars @ 0 ?DO
                     58:        I 8 + I' min I ?DO  space bitmap I + c@ .02x ." ," LOOP cr
                     59:        8 +LOOP ;
                     60: 
                     61: : read-image ( addr u -- )
                     62:     r/o bin open-file throw >r
                     63:     r@ search-magic
                     64:     r@ file-position throw r@ read-header r@ reposition-file throw
                     65:     r@ read-dictionary r@ read-bitmap r> close-file throw ;
                     66: 
                     67: : .imagesize ( -- )
                     68:     image-header 3 cells + @ 1 cells / .08x ;
                     69: 
                     70: : .relocsize ( -- )
                     71:     bitmap-chars @ .08x ;
                     72: 
                     73: : fi2c ( addr u -- )  base @ >r hex
                     74:     read-image
                     75:     ." #include " '" emit ." forth.h" '" emit cr
                     76:     ." Cell image[" .imagesize ." ] = {" cr .image ." };" cr
                     77:     ." const char reloc_bits[" .relocsize ." ] = {" cr .reloc ." };" cr
                     78:     r> base ! ;
                     79: 

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