version 1.17, 2000/09/23 15:06:02
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version 1.21, 2003/01/19 23:35:30
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\ search order wordset 14may93py |
\ search order wordset 14may93py |
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\ Copyright (C) 1995,1996,1997,1998,2000 Free Software Foundation, Inc. |
\ Copyright (C) 1995-2003 Free Software Foundation, Inc. |
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\ This file is part of Gforth. |
\ This file is part of Gforth. |
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\ You should have received a copy of the GNU General Public License |
\ You should have received a copy of the GNU General Public License |
\ along with this program; if not, write to the Free Software |
\ along with this program; if not, write to the Free Software |
\ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
\ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA. |
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$10 constant maxvp |
$10 Value maxvp \ current size of search order stack |
Variable vp |
$400 Value maxvp-limit \ upper limit for resizing search order stack |
0 A, 0 A, 0 A, 0 A, 0 A, 0 A, 0 A, 0 A, |
0 AValue vp \ will be initialized later (dynamic) |
0 A, 0 A, 0 A, 0 A, 0 A, 0 A, 0 A, 0 A, |
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: get-current ( -- wid ) \ search |
: get-current ( -- wid ) \ search |
\G @i{wid} is the identifier of the current compilation word list. |
\G @i{wid} is the identifier of the current compilation word list. |
Line 71 Variable slowvoc 0 slowvoc !
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Line 70 Variable slowvoc 0 slowvoc !
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Create wordlist drop DOES> context ! ; |
Create wordlist drop DOES> context ! ; |
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: check-maxvp ( n -- ) |
: check-maxvp ( n -- ) |
maxvp > -49 and throw ; |
dup maxvp-limit > -49 and throw |
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dup maxvp > IF |
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BEGIN dup maxvp 2* dup TO maxvp <= UNTIL |
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vp maxvp 1+ cells resize throw TO vp |
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THEN drop ; |
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: >order ( wid -- ) \ gforth to-order |
: >order ( wid -- ) \ gforth to-order |
\g Push @var{wid} on the search order. |
\g Push @var{wid} on the search order. |
Line 146 Vocabulary Root ( -- ) \ gforth
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Line 149 Vocabulary Root ( -- ) \ gforth
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\G order (for Gforth, this is the word list @code{Root}). |
\G order (for Gforth, this is the word list @code{Root}). |
1 vp! Root also ; |
1 vp! Root also ; |
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: init-vp ( -- ) |
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$10 TO maxvp |
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maxvp 1+ cells allocate throw TO vp |
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Only Forth also definitions ; |
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:noname |
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init-vp DEFERS 'cold ; |
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IS 'cold |
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init-vp |
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\ set initial search order 14may93py |
\ set initial search order 14may93py |
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Forth-wordlist wordlist-id @ ' Forth >body wordlist-id ! |
Forth-wordlist wordlist-id @ ' Forth >body wordlist-id ! |
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0 vp! also Root also definitions |
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Only Forth also definitions |
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lookup ! \ our dictionary search order becomes the law ( -- ) |
lookup ! \ our dictionary search order becomes the law ( -- ) |
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' Forth >body to Forth-wordlist \ "forth definitions get-current" and "forth-wordlist" should produce the same wid |
' Forth >body to Forth-wordlist \ "forth definitions get-current" and "forth-wordlist" should produce the same wid |