Annotation of gforth/fi2c.fs, revision 1.3
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:
1.3 ! pazsan 26: Variable bswap?
! 27: Variable tchars
! 28:
! 29: : bswap ( n -- n' ) bswap? @ 0= ?EXIT 0
! 30: over 24 rshift $FF and or
! 31: over 8 rshift $FF00 and or
! 32: over 8 lshift $FF0000 and or
! 33: over 24 lshift $FF000000 and or nip ;
! 34:
1.1 pazsan 35: : search-magic ( fd -- ) >r
36: BEGIN magicbuf 8 r@ read-file throw 8 = WHILE
1.3 ! pazsan 37: magicbuf s" Gforth" tuck compare 0= UNTIL
1.1 pazsan 38: ELSE true abort" No magic found" THEN
1.3 ! pazsan 39: magicbuf 6 + c@ digit? drop tchars !
! 40: magicbuf 7 + c@ 1 and 0= [ pad off 1 pad ! pad c@ 1 = ] Literal = bswap? !
1.1 pazsan 41: rdrop ;
42:
43: Create image-header 4 cells allot
44: Variable image-cells
45: Variable bitmap-chars
46:
47: : read-header ( fd -- )
48: image-header 4 cells rot read-file throw drop
1.3 ! pazsan 49: image-header 2 cells + @ bswap tchars @ *
! 50: dup cell / image-cells ! 1- 8 cells / 1+ bitmap-chars !
1.1 pazsan 51: image-cells @ cells allocate throw to image
52: bitmap-chars @ allocate throw to bitmap ;
53:
54: : read-dictionary ( fd -- ) >r
55: image image-cells @ cells r> read-file throw drop ;
56:
57: : read-bitmap ( fd -- ) >r
58: bitmap bitmap-chars @ r> read-file throw drop ;
59:
60: : .08x ( n -- ) 0 <# # # # # # # # # 'x hold '0 hold #> type ;
61: : .02x ( n -- ) 0 <# # # 'x hold '0 hold #> type ;
62:
63: : .image ( -- )
64: image-cells @ 0 ?DO
1.3 ! pazsan 65: I 4 + I' min I ?DO space image I cells + @ bswap .08x ." ," LOOP cr
1.1 pazsan 66: 4 +LOOP ;
67:
68: : .reloc ( -- )
69: bitmap-chars @ 0 ?DO
70: I 8 + I' min I ?DO space bitmap I + c@ .02x ." ," LOOP cr
71: 8 +LOOP ;
72:
73: : read-image ( addr u -- )
74: r/o bin open-file throw >r
75: r@ search-magic
76: r@ file-position throw r@ read-header r@ reposition-file throw
77: r@ read-dictionary r@ read-bitmap r> close-file throw ;
78:
79: : .imagesize ( -- )
1.3 ! pazsan 80: image-header 3 cells + @ bswap 1 cells / tchars @ * .08x ;
1.1 pazsan 81:
82: : .relocsize ( -- )
83: bitmap-chars @ .08x ;
84:
85: : fi2c ( addr u -- ) base @ >r hex
86: read-image
87: ." #include " '" emit ." forth.h" '" emit cr
88: ." Cell image[" .imagesize ." ] = {" cr .image ." };" cr
89: ." const char reloc_bits[" .relocsize ." ] = {" cr .reloc ." };" cr
90: r> base ! ;
91:
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