1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
|
\ Convert image to C include file
\ Copyright (C) 1998 Free Software Foundation, Inc.
\ This file is part of Gforth.
\ Gforth is free software; you can redistribute it and/or
\ modify it under the terms of the GNU General Public License
\ as published by the Free Software Foundation; either version 2
\ of the License, or (at your option) any later version.
\ This program is distributed in the hope that it will be useful,
\ but WITHOUT ANY WARRANTY; without even the implied warranty of
\ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
\ GNU General Public License for more details.
\ You should have received a copy of the GNU General Public License
\ along with this program; if not, write to the Free Software
\ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
0 Value image
0 Value bitmap
Create magicbuf 8 allot
Variable bswap?
Variable tchars
Variable tcell
: bswap ( n -- n' ) bswap? @ 0= ?EXIT 0
over 24 rshift $FF and or
over 8 rshift $FF00 and or
over 8 lshift $FF0000 and or
over 24 lshift $FF000000 and or nip ;
: search-magic ( fd -- ) >r
BEGIN magicbuf 8 r@ read-file throw 8 = WHILE
magicbuf s" Gforth2" tuck compare 0= UNTIL
ELSE true abort" No magic found" THEN
1 magicbuf 7 + c@ 5 rshift 3 and lshift tchars !
1 magicbuf 7 + c@ 1 rshift 3 and lshift tcell !
magicbuf 7 + c@ 1 and 0=
[ pad off 1 pad ! pad c@ 1 = ] Literal = bswap? !
rdrop ;
Create image-header 4 cells allot
Variable image-cells
Variable bitmap-chars
: read-header ( fd -- )
image-header 4 cells rot read-file throw drop
image-header 2 cells + @ bswap tchars @ *
dup cell / image-cells ! 1- 8 cells / 1+ bitmap-chars !
image-cells @ cells allocate throw to image
bitmap-chars @ allocate throw to bitmap ;
: read-dictionary ( fd -- ) >r
image image-cells @ cells r> read-file throw drop ;
: read-bitmap ( fd -- ) >r
bitmap bitmap-chars @ r> read-file throw drop ;
: .08x ( n -- ) 0 <# tcell @ 0 ?DO # # LOOP 'x hold '0 hold #> type ;
: .02x ( n -- ) 0 <# tchars @ 0 ?DO # # LOOP 'x hold '0 hold #> type ;
: .image ( -- )
image-cells @ 0 ?DO
I 4 + I' min I ?DO space image I cells + @ bswap .08x ." ," LOOP cr
4 +LOOP ;
: .reloc ( -- )
bitmap-chars @ 0 ?DO
I $10 + I' min I ?DO space
0 I tchars @ bounds ?DO 8 lshift bitmap I + c@ + LOOP
.02x ." ," tchars @ +LOOP cr
$10 +LOOP ;
: read-image ( addr u -- )
r/o bin open-file throw >r
r@ search-magic
r@ file-position throw r@ read-header r@ reposition-file throw
r@ read-dictionary r@ read-bitmap r> close-file throw ;
: .imagesize ( -- )
image-header 3 cells + @ bswap tcell @ / tchars @ * .08x ;
: .relocsize ( -- )
bitmap-chars @ 1- tchars @ / 1+ .08x ;
: fi2c ( addr u -- ) base @ >r hex
read-image
." #include " '" emit ." forth.h" '" emit cr
." Cell image[" .imagesize ." ] = {" cr .image ." };" cr
." const char reloc_bits[" .relocsize ." ] = {" cr .reloc ." };" cr
r> base ! ;
|
