version 1.5, 2000/09/23 15:46:51
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version 1.8, 2001/02/24 17:24:44
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Line 28 s" address-unit-bits" environment? drop
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Line 28 s" address-unit-bits" environment? drop
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: th ( addr1 n -- addr2 ) |
: th ( addr1 n -- addr2 ) |
cells + ; |
cells + ; |
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: bset ( bmask c-addr -- ) |
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tuck c@ or swap c! ; |
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: set-bit { u addr -- } |
: set-bit { u addr -- } |
\ set bit u in bit-vector addr |
\ set bit u in bit-vector addr |
u bits/au /mod |
u bits/au /mod |
>r 1 bits/au 1- rot - lshift |
>r 1 bits/au 1- rot - lshift |
r> addr + cset ; |
r> addr + bset ; |
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: compare-images { image1 image2 reloc-bits size file-id -- } |
: compare-images { image1 image2 reloc-bits size file-id -- } |
\G compares image1 and image2 (of size cells) and sets reloc-bits. |
\G compares image1 and image2 (of size cells) and sets reloc-bits. |
Line 80 s" address-unit-bits" environment? drop
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Line 83 s" address-unit-bits" environment? drop
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endif |
endif |
loop ; |
loop ; |
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: slurp-file ( c-addr1 u1 -- c-addr2 u2 ) |
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\ c-addr1 u1 is the filename, c-addr2 u2 is the file's contents |
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r/o bin open-file throw >r |
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r@ file-size throw abort" file too large" |
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dup allocate throw swap |
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2dup r@ read-file throw over <> abort" could not read whole file" |
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r> close-file throw ; |
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: comp-image ( "image-file1" "image-file2" "new-image" -- ) |
: comp-image ( "image-file1" "image-file2" "new-image" -- ) |
name slurp-file { image1 size1 } |
name slurp-file { image1 size1 } |
image1 size1 s" Gforth2" search 0= abort" not a Gforth image" |
image1 size1 s" Gforth2" search 0= abort" not a Gforth image" |
drop 8 + image1 - { header-offset } |
drop 8 + image1 - { header-offset } |
size1 aligned size1 <> abort" unaligned image size" |
size1 aligned size1 <> abort" unaligned image size" |
size1 image1 header-offset + 2 cells + @ header-offset + <> abort" header gives wrong size" |
image1 header-offset + 2 cells + @ header-offset + size1 <> abort" header gives wrong size" |
name slurp-file { image2 size2 } |
name slurp-file { image2 size2 } |
size1 size2 <> abort" image sizes differ" |
size1 size2 <> abort" image sizes differ" |
name ( "new-image" ) w/o bin create-file throw { outfile } |
name ( "new-image" ) w/o bin create-file throw { outfile } |