--- gforth/fi2c.fs 1998/12/08 22:02:41 1.2 +++ gforth/fi2c.fs 1998/12/13 23:29:58 1.4 @@ -23,10 +23,23 @@ 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" Gforth1" tuck compare 0= UNTIL + magicbuf s" Gforth" tuck compare 0= UNTIL ELSE true abort" No magic found" THEN + magicbuf 6 + c@ digit? drop tchars ! + magicbuf 7 + c@ digit? drop dup -2 and tcell ! + 1 and 0= [ pad off 1 pad ! pad c@ 1 = ] Literal = bswap? ! rdrop ; Create image-header 4 cells allot @@ -35,7 +48,8 @@ Variable bitmap-chars : read-header ( fd -- ) 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 bitmap-chars @ allocate throw to bitmap ; @@ -45,18 +59,20 @@ Variable bitmap-chars : read-bitmap ( fd -- ) >r bitmap bitmap-chars @ r> read-file throw drop ; -: .08x ( n -- ) 0 <# # # # # # # # # 'x hold '0 hold #> type ; -: .02x ( n -- ) 0 <# # # 'x hold '0 hold #> type ; +: .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 + @ .08x ." ," LOOP cr + I 4 + I' min I ?DO space image I cells + @ bswap .08x ." ," LOOP cr 4 +LOOP ; : .reloc ( -- ) bitmap-chars @ 0 ?DO - I 8 + I' min I ?DO space bitmap I + c@ .02x ." ," LOOP cr - 8 +LOOP ; + 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 @@ -65,10 +81,10 @@ Variable bitmap-chars r@ read-dictionary r@ read-bitmap r> close-file throw ; : .imagesize ( -- ) - image-header 3 cells + @ 1 cells / .08x ; + image-header 3 cells + @ bswap tcell @ / tchars @ * .08x ; : .relocsize ( -- ) - bitmap-chars @ .08x ; + bitmap-chars @ tchars @ / .08x ; : fi2c ( addr u -- ) base @ >r hex read-image