File:  [gforth] / gforth / fi2c.fs
Revision 1.22: download - view: text, annotated - select for diffs
Mon Dec 31 18:40:24 2007 UTC (11 years, 6 months ago) by anton
Branches: MAIN
CVS tags: v0-7-0, HEAD
updated copyright notices for GPL v3

    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: 
   20: require string.fs
   21: 
   22: 0 Value image
   23: 0 Value bitmap
   24: 
   25: Create magicbuf 8 allot
   26: 
   27: Create groups 32 0 [DO] 512 cells allocate throw dup 512 cells erase , [LOOP]
   28: 
   29: \ we define it ans like...
   30: wordlist Constant target-environment
   31: 
   32: \ save information of current dictionary to restore with environ>
   33: Variable 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: 
   60: include machpc.fs
   61: ENVIRON>
   62: 
   63: : prefix? ( string u1 prefix u2 -- flag )
   64:     tuck 2>r umin 2r> str= ;
   65: 
   66: s" 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 ;
   94: s" prim_lab.i" read-groups
   95: 
   96: Variable bswap?
   97: Variable endian
   98: Variable tchars
   99: Variable tcell
  100: Variable 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: 
  126: Create image-header  4 cells allot
  127: Variable image-cells
  128: Variable 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: 

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