Annotation of gforth/fi2c.fs, revision 1.15

1.1       pazsan      1: \ Convert image to C include file
                      2: 
1.14      anton       3: \ Copyright (C) 1998,1999,2002,2003 Free Software Foundation, Inc.
1.2       anton       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
1.10      anton      19: \ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
1.2       anton      20: 
1.15    ! pazsan     21: require string.fs
        !            22: 
1.1       pazsan     23: 0 Value image
                     24: 0 Value bitmap
                     25: 
                     26: Create magicbuf 8 allot
                     27: 
1.15    ! pazsan     28: Create groups 32 0 [DO] 512 cells allocate throw dup 512 cells erase , [LOOP]
        !            29: 
        !            30: : prefix? ( string u1 prefix u2 -- flag )
        !            31:     tuck 2>r umin 2r> str= ;
        !            32: 
        !            33: : read-groups ( addr u -- )
        !            34:     r/o open-file throw >r  0 0
        !            35:     BEGIN  pad $100 r@ read-line throw  WHILE
        !            36:            pad swap 2dup s" GROUP(" prefix?
        !            37:            IF  2drop drop 1+ 0  ELSE
        !            38:                2dup s" INST_ADDR(" prefix?
        !            39:                IF  &10 /string 2dup ') scan nip -
        !            40:                    2over cells swap cells groups + @ + $!
        !            41:                    1+
        !            42:                ELSE  2drop  THEN  THEN
        !            43:     REPEAT
        !            44:     2drop r> close-file throw ;
        !            45: s" prim_lab.i" read-groups
        !            46: 
1.3       pazsan     47: Variable bswap?
1.15    ! pazsan     48: Variable endian
1.3       pazsan     49: Variable tchars
1.4       pazsan     50: Variable tcell
1.7       pazsan     51: Variable au
1.3       pazsan     52: 
1.15    ! pazsan     53: : t@ ( addr -- x )
        !            54:     endian @ IF
        !            55:        0 swap tcell @ bounds ?DO
        !            56:            8 lshift I c@ or
        !            57:        LOOP
        !            58:     ELSE
        !            59:        0 swap tcell @ bounds ?DO
        !            60:            8 rshift I c@ 8 tcell @ 1- * lshift or
        !            61:        LOOP
        !            62:     THEN
        !            63:     dup 1 8 tcell @ * 1- lshift and negate or ;
        !            64: 
        !            65: 1 cells 4 = [IF]
1.3       pazsan     66: : bswap ( n -- n' )  bswap? @ 0= ?EXIT  0
                     67:     over 24 rshift $FF       and or
                     68:     over  8 rshift $FF00     and or
                     69:     over  8 lshift $FF0000   and or
                     70:     over 24 lshift $FF000000 and or nip ;
1.15    ! pazsan     71: [THEN]
        !            72: 
        !            73: 1 cells 8 = [IF]
        !            74: : bswap ( n -- n' )  bswap? @ 0= ?EXIT  0
        !            75:     over 56 rshift $FF               and or
        !            76:     over 40 rshift $FF00             and or
        !            77:     over 24 rshift $FF0000           and or
        !            78:     over  8 rshift $FF000000         and or
        !            79:     over  8 lshift $FF00000000       and or
        !            80:     over 24 lshift $FF0000000000     and or
        !            81:     over 40 lshift $FF000000000000   and or
        !            82:     over 56 lshift $FF00000000000000 and or
        !            83:     nip ;
        !            84: [THEN]
1.3       pazsan     85: 
1.1       pazsan     86: : search-magic ( fd -- )  >r
                     87:     BEGIN  magicbuf 8 r@ read-file throw  8 =  WHILE
1.15    ! pazsan     88:        magicbuf s" Gforth3" tuck str=  UNTIL
1.1       pazsan     89:     ELSE  true abort" No magic found"  THEN
1.6       pazsan     90:     1 magicbuf 7 + c@ 5 rshift 3 and lshift tchars !
                     91:     1 magicbuf 7 + c@ 1 rshift 3 and lshift tcell !
1.7       pazsan     92:     1 magicbuf 7 + c@ 3 rshift 3 and lshift au !
1.15    ! pazsan     93:     magicbuf 7 + c@ 1 and 0= dup endian !
1.6       pazsan     94:     [ pad off 1 pad ! pad c@ 1 = ] Literal = bswap? !
1.7       pazsan     95:     ." /* Image with " tcell @ . ." bytes cell, " tchars @ . ." bytes per char and " au @ . ." bytes per address unit */" cr
1.1       pazsan     96:     rdrop ;
                     97: 
                     98: Create image-header  4 cells allot
                     99: Variable image-cells
                    100: Variable bitmap-chars
                    101: 
                    102: : read-header ( fd -- )
1.15    ! pazsan    103:     image-header 4 tcell @ * rot read-file throw drop
        !           104:     image-header 2 tcell @ * + t@ tchars @ * tcell @ / au @ /
1.8       pazsan    105:     dup image-cells ! 1- 8 / tchars @ / 1+ bitmap-chars !
1.15    ! pazsan    106:     image-cells @ tcell @ * allocate throw to image
1.1       pazsan    107:     bitmap-chars @ allocate throw to bitmap ;
                    108: 
                    109: : read-dictionary ( fd -- )  >r
1.15    ! pazsan    110:     image image-cells @ tcell @ * r> read-file throw drop ;
1.1       pazsan    111: 
                    112: : read-bitmap ( fd -- )  >r
1.8       pazsan    113:     bitmap bitmap-chars @ tchars @ * r> read-file throw drop ;
1.1       pazsan    114: 
1.4       pazsan    115: : .08x ( n -- ) 0 <# tcell  @ 0 ?DO # # LOOP 'x hold '0 hold #> type ;
                    116: : .02x ( n -- ) 0 <# tchars @ 0 ?DO # # LOOP 'x hold '0 hold #> type ;
1.1       pazsan    117: 
1.15    ! pazsan    118: : bit@ ( addr n -- flag )
        !           119:     dup 7 and $80 swap rshift >r 3 rshift + c@ r> and
        !           120:     0<> ;
        !           121: 
1.1       pazsan    122: : .image ( -- )
                    123:     image-cells @ 0 ?DO
1.15    ! pazsan    124:        I 1 + I' min I ?DO  space image I tcell @ * + t@
        !           125:            bitmap I bit@ IF
        !           126:                dup 0< IF
        !           127:                    negate dup $3E00 and 9 rshift swap $1FF and
        !           128:                    over cells groups + @ over $1FF and cells +
        !           129:                    dup @ 0= IF  drop
        !           130:                        2dup 0 8 d= IF  2drop s" doesjump"
        !           131:                        ELSE
        !           132:                            <# '] hold 0 #S 2drop '[ hold '] hold
        !           133:                            0 #S '[ hold #>
        !           134:                        THEN
        !           135:                    ELSE
        !           136:                        >r 2drop r> $@
        !           137:                    THEN
        !           138:                    ." &&" type
        !           139:                ELSE
        !           140:                    ." image+" tcell @ / .08x
        !           141:                THEN
        !           142:            ELSE
        !           143:                .08x
        !           144:            THEN  ." ,"
        !           145:        LOOP cr
        !           146:     1 +LOOP ;
1.1       pazsan    147: 
                    148: : .reloc ( -- )
1.8       pazsan    149:     bitmap-chars @ tchars @ * 0 ?DO
1.4       pazsan    150:        I $10 + I' min I ?DO  space
                    151:            0 I tchars @ bounds ?DO  8 lshift bitmap I + c@ +  LOOP
                    152:            .02x ." ," tchars @ +LOOP cr
                    153:        $10 +LOOP ;
1.1       pazsan    154: 
                    155: : read-image ( addr u -- )
                    156:     r/o bin open-file throw >r
                    157:     r@ search-magic
                    158:     r@ file-position throw r@ read-header r@ reposition-file throw
                    159:     r@ read-dictionary r@ read-bitmap r> close-file throw ;
                    160: 
                    161: : .imagesize ( -- )
1.15    ! pazsan    162:     image-header 3 tcell @ * + t@ tchars @ * tcell @ / au @ / .08x ;
1.1       pazsan    163: 
                    164: : .relocsize ( -- )
1.8       pazsan    165:     bitmap-chars @ .08x ;
1.1       pazsan    166: 
                    167: : fi2c ( addr u -- )  base @ >r hex
                    168:     read-image
                    169:     ." #include " '" emit ." forth.h" '" emit cr
1.15    ! pazsan    170:     ." void* image[" .imagesize ." ] = {" cr .image ." };" cr
1.1       pazsan    171:     ." const char reloc_bits[" .relocsize ." ] = {" cr .reloc ." };" cr
                    172:     r> base ! ;
                    173: 

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