1\ Convert image to C include file
2
3\ Copyright (C) 1998,1999,2002,2003,2007 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 3
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, see http://www.gnu.org/licenses/.
19
20require string.fs
21
220 Value image
230 Value bitmap
24
25Create magicbuf 8 allot
26
27Create groups 32 0 [DO] 512 cells allocate throw dup 512 cells erase , [LOOP]
28
29\ we define it ans like...
30wordlist Constant target-environment
31
32\ save information of current dictionary to restore with environ>
33Variable env-current
34
35: >ENVIRON get-current env-current ! target-environment set-current
36  also target-environment context ! ;
37: ENVIRON> previous env-current @ set-current ;
38
39: t-env? ( addr len -- [ x ] true | false )
40\G returns the content of environment variable and true or
41\G false if not present
42   target-environment search-wordlist
43   IF EXECUTE true ELSE false THEN ;
44
45: $has? ( addr u -- x | false )
46\G returns the content of environment variable
47\G or false if not present
48   t-env? dup IF drop THEN ;
49
50' Value Alias DefaultValue
51' Value Alias SetValue
52
53: kb 1024 * ;
54
55' noop alias T
56' noop alias H
57
58: has?  parse-name 2drop true ;
59
60include machpc.fs
61ENVIRON>
62
63: prefix? ( string u1 prefix u2 -- flag )
64    tuck 2>r umin 2r> str= ;
65
66s" NULL" groups @ cell+ $!
67
68: scan-ifs ( fd -- ) >r 1
69    BEGIN  pad $100 r@ read-line throw  WHILE
70	    pad swap
71	    2dup s" #ifdef HAS_" prefix? >r
72	    2dup s" #else" prefix? >r
73	    s" #endif" prefix? r> or r> - +
74	dup 0= UNTIL  THEN  rdrop drop ;
75
76: read-groups ( addr u -- )
77    r/o open-file throw >r  0 2
78    BEGIN  pad $100 r@ read-line throw  WHILE
79	    pad swap
80	    2dup s" #ifdef HAS_" prefix?
81	    IF
82		11 /string $has? 0= IF r@ scan-ifs  THEN
83	    ELSE  2dup s" #else" prefix?
84		IF  2drop r@ scan-ifs
85		ELSE  2dup s" GROUP(" prefix?
86		    IF  2drop drop 1+ 0  ELSE
87			2dup s" INST_ADDR(" prefix?
88			IF  &10 /string 2dup ') scan nip -
89			    2over cells swap cells groups + @ + $!
90			    1+
91			ELSE  2drop  THEN  THEN  THEN  THEN
92    REPEAT
93    2drop r> close-file throw ;
94s" prim_lab.i" read-groups
95
96Variable bswap?
97Variable endian
98Variable tchars
99Variable tcell
100Variable au
101
102: t@ ( addr -- x )
103    endian @ IF
104	0 swap tcell @ bounds ?DO
105	    8 lshift I c@ or
106	LOOP
107    ELSE
108	0 swap tcell @ bounds ?DO
109	    8 rshift I c@ 8 tcell @ 1- * lshift or
110	LOOP
111    THEN
112    dup 1 8 tcell @ * 1- lshift and negate or ;
113
114: search-magic ( fd -- )  >r
115    BEGIN  magicbuf 8 r@ read-file throw  8 =  WHILE
116	magicbuf s" Gforth3" tuck str=  UNTIL
117    ELSE  true abort" No magic found"  THEN
118    1 magicbuf 7 + c@ 5 rshift 3 and lshift tchars !
119    1 magicbuf 7 + c@ 1 rshift 3 and lshift tcell !
120    1 magicbuf 7 + c@ 3 rshift 3 and lshift au !
121    magicbuf 7 + c@ 1 and 0= dup endian !
122    [ pad off 1 pad ! pad c@ 1 = ] Literal = bswap? !
123    ." /* Image with " tcell @ . ." bytes cell, " tchars @ . ." bytes per char and " au @ . ." bytes per address unit */" cr
124    rdrop ;
125
126Create image-header  4 cells allot
127Variable image-cells
128Variable bitmap-chars
129
130: read-header ( fd -- )
131    image-header 4 tcell @ * rot read-file throw drop
132    image-header 2 tcell @ * + t@ tchars @ * tcell @ / au @ /
133    dup image-cells ! 1- 8 / tchars @ / 1+ bitmap-chars !
134    image-cells @ tcell @ * allocate throw to image
135    bitmap-chars @ allocate throw to bitmap ;
136
137: read-dictionary ( fd -- )  >r
138    image image-cells @ tcell @ * r> read-file throw drop ;
139
140: read-bitmap ( fd -- )  >r
141    bitmap bitmap-chars @ tchars @ * r> read-file throw drop ;
142
143: .08x ( n -- ) 0 <# tcell  @ 0 ?DO # # LOOP 'x hold '0 hold #> type ;
144: .02x ( n -- ) 0 <# tchars @ 0 ?DO # # LOOP 'x hold '0 hold #> type ;
145
146: bit@ ( addr n -- flag )
147    dup 7 and $80 swap rshift >r 3 rshift + c@ r> and
148    0<> ;
149
150: .image ( -- )
151    image-cells @ 0 ?DO
152	I 1 + I' min I ?DO  space image I tcell @ * + t@
153	    bitmap I bit@ IF
154		dup 0< IF
155		    dup -1 = IF
156			drop ." NULL"
157		    ELSE
158			negate dup $3E00 and 9 rshift swap $1FF and
159			over cells groups + @ over $1FF and cells +
160			dup @ 0= IF  drop
161			    2dup 0 8 d= IF  2drop s" doesjump"
162			    ELSE
163				<# '] hold 0 #S 2drop '[ hold '] hold
164				0 #S '[ hold #>
165			    THEN
166			ELSE
167			    >r 2drop r> $@
168			THEN
169			." INST_ADDR(" type ." )"
170		    THEN
171		ELSE
172		    dup IF  ." ((void*)image)+"  THEN  .08x
173		THEN
174	    ELSE
175		." (void*)" .08x
176	    THEN  ." ,"
177	LOOP cr
178    1 +LOOP ;
179
180: .reloc ( -- )
181    bitmap-chars @ tchars @ * 0 ?DO
182	I $10 + I' min I ?DO  space
183	    0 I tchars @ bounds ?DO  8 lshift bitmap I + c@ +  LOOP
184	    .02x ." ," tchars @ +LOOP cr
185	$10 +LOOP ;
186
187: read-image ( addr u -- )
188    r/o bin open-file throw >r
189    r@ search-magic
190    r@ file-position throw r@ read-header r@ reposition-file throw
191    r@ read-dictionary r@ read-bitmap r> close-file throw ;
192
193: .imagesize ( -- )
194    image-header 3 tcell @ * + t@ tchars @ * tcell @ / au @ / .08x ;
195
196: .relocsize ( -- )
197    bitmap-chars @ .08x ;
198
199: fi2c ( addr u -- )  base @ >r hex
200    read-image
201    \    .\" const static __attribute__ ((__section__ (\".rodata\"))) void* image[" .imagesize ." ] = {" cr .image ." };" cr
202    .\" static void* image[" .imagesize ." ] = {" cr .image ." };" cr
203    ." #ifdef USE_RELOC" cr
204    ." const char reloc_bits[" .relocsize ." ] = {" cr .reloc ." };" cr
205    ." #endif" cr
206    r> base ! ;
207
208