[gforth] / gforth / fi2c.fs  

gforth: gforth/fi2c.fs

Diff for /gforth/fi2c.fs between version 1.2 and 1.3

version 1.2, Tue Dec 8 22:02:41 1998 UTC version 1.3, Fri Dec 11 22:54:27 1998 UTC
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 Create magicbuf 8 allot  Create magicbuf 8 allot
   
   Variable bswap?
   Variable tchars
   
   : 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  : search-magic ( fd -- )  >r
     BEGIN  magicbuf 8 r@ read-file throw  8 =  WHILE      BEGIN  magicbuf 8 r@ read-file throw  8 =  WHILE
         magicbuf s" Gforth1" tuck compare 0=  UNTIL          magicbuf s" Gforth" tuck compare 0=  UNTIL
     ELSE  true abort" No magic found"  THEN      ELSE  true abort" No magic found"  THEN
       magicbuf 6 + c@ digit? drop tchars !
       magicbuf 7 + c@ 1 and 0= [ pad off 1 pad ! pad c@ 1 = ] Literal = bswap? !
     rdrop ;      rdrop ;
   
 Create image-header  4 cells allot  Create image-header  4 cells allot
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 : read-header ( fd -- )  : read-header ( fd -- )
     image-header 4 cells rot read-file throw drop      image-header 4 cells rot read-file throw drop
     image-header 2 cells + @ dup cell / image-cells ! 1- 8 cells / 1+ bitmap-chars !      image-header 2 cells + @ bswap tchars @ *
       dup cell / image-cells ! 1- 8 cells / 1+ bitmap-chars !
     image-cells @ cells allocate throw to image      image-cells @ cells allocate throw to image
     bitmap-chars @ allocate throw to bitmap ;      bitmap-chars @ allocate throw to bitmap ;
   
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 : .image ( -- )  : .image ( -- )
     image-cells @ 0 ?DO      image-cells @ 0 ?DO
         I 4 + I' min I ?DO  space image I cells + @ .08x ." ," LOOP cr          I 4 + I' min I ?DO  space image I cells + @ bswap .08x ." ," LOOP cr
         4 +LOOP ;          4 +LOOP ;
   
 : .reloc ( -- )  : .reloc ( -- )
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     r@ read-dictionary r@ read-bitmap r> close-file throw ;      r@ read-dictionary r@ read-bitmap r> close-file throw ;
   
 : .imagesize ( -- )  : .imagesize ( -- )
     image-header 3 cells + @ 1 cells / .08x ;      image-header 3 cells + @ bswap 1 cells / tchars @ * .08x ;
   
 : .relocsize ( -- )  : .relocsize ( -- )
     bitmap-chars @ .08x ;      bitmap-chars @ .08x ;

Generate output suitable for use with a patch program
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Removed from v.1.2  
changed lines
  Added in v.1.3
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