version 1.15, 1997/05/29 19:42:12
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version 1.17, 1997/07/31 16:17:06
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Line 32
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Line 32
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require struct.fs |
require struct.fs |
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struct |
struct |
1 cells: field buffer-block \ the block number |
cell% field buffer-block \ the block number |
1 cells: field buffer-fid \ the block's fid |
cell% field buffer-fid \ the block's fid |
1 cells: field buffer-dirty \ the block dirty flag |
cell% field buffer-dirty \ the block dirty flag |
chars/block chars: field block-buffer \ the data |
char% chars/block * field block-buffer \ the data |
0 cells: field next-buffer |
cell% 0 * field next-buffer |
end-struct buffer-struct |
end-struct buffer-struct |
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Variable block-buffers |
Variable block-buffers |
Line 46 $20 Value buffers
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Line 46 $20 Value buffers
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User block-fid |
User block-fid |
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: block-cold |
: block-cold ( -- ) |
defers 'cold block-fid off last-block off |
block-fid off last-block off |
buffers buffer-struct drop * allocate throw dup block-buffers ! |
buffer-struct buffers * %alloc dup block-buffers ! ( addr ) |
buffers buffer-struct drop * erase ; |
buffer-struct %size buffers * erase ; |
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' block-cold IS 'cold |
' block-cold INIT8 chained |
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block-cold |
block-cold |
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Line 114 Defer flush-blocks
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Line 114 Defer flush-blocks
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' flush IS flush-blocks |
' flush IS flush-blocks |
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: get-buffer ( n -- a-addr ) |
: get-buffer ( n -- a-addr ) |
buffers mod buffer-struct drop * block-buffers @ + ; |
buffers mod buffer-struct %size * block-buffers @ + ; |
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: block ( u -- a-addr ) |
: block ( u -- a-addr ) |
dup 0= -35 and throw |
dup 0= -35 and throw |
Line 192 true constant block
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Line 192 true constant block
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true constant block-ext |
true constant block-ext |
set-current |
set-current |
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: bye ['] flush catch drop bye ; |
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: bye ['] flush catch drop bye ; |