| |
|
| Variable bswap? |
Variable bswap? |
| Variable tchars |
Variable tchars |
| |
Variable tcell |
| |
|
| : bswap ( n -- n' ) bswap? @ 0= ?EXIT 0 |
: bswap ( n -- n' ) bswap? @ 0= ?EXIT 0 |
| over 24 rshift $FF and or |
over 24 rshift $FF and or |
| magicbuf s" Gforth" 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 6 + c@ digit? drop tchars ! |
| magicbuf 7 + c@ 1 and 0= [ pad off 1 pad ! pad c@ 1 = ] Literal = bswap? ! |
magicbuf 7 + c@ digit? drop dup -2 and tcell ! |
| |
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 |
| : read-bitmap ( fd -- ) >r |
: read-bitmap ( fd -- ) >r |
| bitmap bitmap-chars @ r> read-file throw drop ; |
bitmap bitmap-chars @ r> read-file throw drop ; |
| |
|
| : .08x ( n -- ) 0 <# # # # # # # # # 'x hold '0 hold #> type ; |
: .08x ( n -- ) 0 <# tcell @ 0 ?DO # # LOOP 'x hold '0 hold #> type ; |
| : .02x ( n -- ) 0 <# # # 'x hold '0 hold #> type ; |
: .02x ( n -- ) 0 <# tchars @ 0 ?DO # # LOOP 'x hold '0 hold #> type ; |
| |
|
| : .image ( -- ) |
: .image ( -- ) |
| image-cells @ 0 ?DO |
image-cells @ 0 ?DO |
| |
|
| : .reloc ( -- ) |
: .reloc ( -- ) |
| bitmap-chars @ 0 ?DO |
bitmap-chars @ 0 ?DO |
| I 8 + I' min I ?DO space bitmap I + c@ .02x ." ," LOOP cr |
I $10 + I' min I ?DO space |
| 8 +LOOP ; |
0 I tchars @ bounds ?DO 8 lshift bitmap I + c@ + LOOP |
| |
.02x ." ," tchars @ +LOOP cr |
| |
$10 +LOOP ; |
| |
|
| : read-image ( addr u -- ) |
: read-image ( addr u -- ) |
| r/o bin open-file throw >r |
r/o bin open-file throw >r |
| 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 + @ bswap 1 cells / tchars @ * .08x ; |
image-header 3 cells + @ bswap tcell @ / tchars @ * .08x ; |
| |
|
| : .relocsize ( -- ) |
: .relocsize ( -- ) |
| bitmap-chars @ .08x ; |
bitmap-chars @ tchars @ / .08x ; |
| |
|
| : fi2c ( addr u -- ) base @ >r hex |
: fi2c ( addr u -- ) base @ >r hex |
| read-image |
read-image |