version 1.27, 1999/11/08 22:01:07
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version 1.29, 2000/02/28 21:27:07
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Line 91 Defer flush-blocks ( -- ) \ gforth
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Line 91 Defer flush-blocks ( -- ) \ gforth
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offset @ - chars/block chars um* get-block-fid reposition-file throw ; |
offset @ - chars/block chars um* get-block-fid reposition-file throw ; |
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: update ( -- ) \ block |
: update ( -- ) \ block |
\G Mark the current block buffer as dirty. |
\G Mark the state of the current block buffer as assigned-dirty. |
last-block @ ?dup IF buffer-dirty on THEN ; |
last-block @ ?dup IF buffer-dirty on THEN ; |
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: save-buffer ( buffer -- ) \ gforth |
: save-buffer ( buffer -- ) \ gforth |
Line 131 Defer flush-blocks ( -- ) \ gforth
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Line 131 Defer flush-blocks ( -- ) \ gforth
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: get-buffer ( u -- a-addr ) \ gforth |
: get-buffer ( u -- a-addr ) \ gforth |
0 buffers um/mod drop buffer-struct %size * block-buffers @ + ; |
0 buffers um/mod drop buffer-struct %size * block-buffers @ + ; |
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: block ( u -- a-addr ) \ block- block |
: block ( u -- a-addr ) \ gforthman- block |
\G If a block buffer is assigned for block @i{u}, return its |
\G If a block buffer is assigned for block @i{u}, return its |
\G start address, @i{a-addr}. Otherwise, assign a block buffer |
\G start address, @i{a-addr}. Otherwise, assign a block buffer |
\G for block @i{u} (if the assigned block buffer has been |
\G for block @i{u} (if the assigned block buffer has been |
Line 168 Defer flush-blocks ( -- ) \ gforth
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Line 168 Defer flush-blocks ( -- ) \ gforth
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\ reading in the block is unnecessary, but simpler |
\ reading in the block is unnecessary, but simpler |
block ; |
block ; |
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User scr ( -- a-addr ) \ block-ext |
User scr ( -- a-addr ) \ block-ext s-c-r |
\G @code{User} variable -- @i{a-addr} is the address of a cell containing |
\G @code{User} variable -- @i{a-addr} is the address of a cell containing |
\G the block number of the block most recently processed by |
\G the block number of the block most recently processed by |
\G @code{list}. |
\G @code{list}. |
Line 176 User scr ( -- a-addr ) \ block-ext
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Line 176 User scr ( -- a-addr ) \ block-ext
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\ nac31Mar1999 moved "scr @" to list to make the stack comment correct |
\ nac31Mar1999 moved "scr @" to list to make the stack comment correct |
: updated? ( n -- f ) \ gforth |
: updated? ( n -- f ) \ gforth |
\G Return true if block @i{n} has been marked as dirty. |
\G Return true if @code{updated} has been used to mark block @i{n} |
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\G as assigned-dirty. |
buffer |
buffer |
[ 0 buffer-dirty 0 block-buffer - ] Literal + @ ; |
[ 0 buffer-dirty 0 block-buffer - ] Literal + @ ; |
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Line 225 User scr ( -- a-addr ) \ block-ext
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Line 226 User scr ( -- a-addr ) \ block-ext
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\G current block + @i{n1} thru the current block + @i{n2}. |
\G current block + @i{n1} thru the current block + @i{n2}. |
1+ swap ?DO I +load LOOP ; |
1+ swap ?DO I +load LOOP ; |
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: --> ( -- ) \ gforth- gforth chain |
: --> ( -- ) \ gforthman- gforth chain |
\G If this symbol is encountered whilst loading block @i{n}, |
\G If this symbol is encountered whilst loading block @i{n}, |
\G discard the remainder of the block and load block @i{n+1}. Used |
\G discard the remainder of the block and load block @i{n+1}. Used |
\G for chaining multiple blocks together as a single loadable |
\G for chaining multiple blocks together as a single loadable |