version 1.61, 2007/12/31 17:34:58
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version 1.70, 2011/12/31 15:29:25
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\ EXTEND.FS CORE-EXT Word not fully tested! 12may93jaw |
\ EXTEND.FS CORE-EXT Word not fully tested! 12may93jaw |
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\ Copyright (C) 1995,1998,2000,2003,2005,2007 Free Software Foundation, Inc. |
\ Copyright (C) 1995,1998,2000,2003,2005,2007,2009,2010,2011 Free Software Foundation, Inc. |
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\ This file is part of Gforth. |
\ This file is part of Gforth. |
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\ Gforth is free software; you can redistribute it and/or |
\ Gforth is free software; you can redistribute it and/or |
\ modify it under the terms of the GNU General Public License |
\ modify it under the terms of the GNU General Public License |
\ as published by the Free Software Foundation; either version 2 |
\ as published by the Free Software Foundation, either version 3 |
\ of the License, or (at your option) any later version. |
\ of the License, or (at your option) any later version. |
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\ This program is distributed in the hope that it will be useful, |
\ This program is distributed in the hope that it will be useful, |
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\ GNU General Public License for more details. |
\ GNU General Public License for more details. |
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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, see http://www.gnu.org/licenses/. |
\ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA. |
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\ May be cross-compiled |
\ May be cross-compiled |
Line 51 decimal
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Line 50 decimal
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>r s>d >r abs -rot |
>r s>d >r abs -rot |
s>d r> xor r> swap >r >r dabs rot tuck um* 2swap um* |
s>d r> xor r> swap >r >r dabs rot tuck um* 2swap um* |
swap >r 0 d+ r> -rot r@ um/mod -rot r> um/mod |
swap >r 0 d+ r> -rot r@ um/mod -rot r> um/mod |
[ s" floored" environment? 0= throw ] [if] |
[ 1 -3 mod 0< ] [if] |
-rot r> IF IF 1. d+ THEN dnegate ELSE drop THEN |
-rot r> IF IF 1. d+ THEN dnegate ELSE drop THEN |
[else] |
[else] |
nip swap r> IF dnegate THEN |
nip swap r> IF dnegate THEN |
Line 61 decimal
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Line 60 decimal
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\ just as described in dpANS5 |
\ just as described in dpANS5 |
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0 CONSTANT case ( compilation -- case-sys ; run-time -- ) \ core-ext |
[ifundef] cs-drop |
immediate |
: CS-DROP ( dest -- ) \ gforth |
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dest? 2drop ; |
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[then] |
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: case ( compilation -- case-sys ; run-time -- ) \ core-ext |
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postpone begin 0 ; immediate |
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: ?of ( compilation -- of-sys ; run-time f -- ) \ gforth |
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>r POSTPONE if r> ; immediate |
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: of ( compilation -- of-sys ; run-time x1 x2 -- |x1 ) \ core-ext |
: of ( compilation -- of-sys ; run-time x1 x2 -- |x1 ) \ core-ext |
\ !! the implementation does not match the stack effect |
\ !! the implementation does not match the stack effect |
1+ >r |
postpone over postpone = postpone ?of postpone drop ; immediate |
postpone over postpone = postpone if postpone drop |
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r> ; immediate |
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: endof ( compilation case-sys1 of-sys -- case-sys2 ; run-time -- ) \ core-ext end-of |
: endof ( compilation case-sys1 of-sys -- case-sys2 ; run-time -- ) \ core-ext end-of |
>r postpone else r> ; immediate |
>r postpone else 1 cs-roll r> 1+ ; immediate |
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: contof ( compilation case-sys1 of-sys -- case-sys2 ; run-time -- ) |
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\ like @code{endof}, but loops back to the @code{case} |
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>r 1 cs-pick postpone again postpone then r> ; immediate |
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: n-thens ( orig1 ... origu u -- ) |
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0 ?do postpone then loop ; |
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: endcase ( compilation case-sys -- ; run-time x -- ) \ core-ext end-case |
: endcase ( compilation case-sys -- ; run-time x -- ) \ core-ext end-case |
postpone drop |
>r cs-drop postpone drop r> n-thens ; immediate |
0 ?do postpone then loop ; immediate |
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: nextcase ( compilation case-sys -- ; run-time x -- ) \ gforth-undocumented |
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\ like ENDCASE, but start again from the beginning if this is |
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\ reached by fallthrough |
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>r postpone drop postpone again r> n-thens ; immediate |
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\ C" 17may93jaw |
\ C" 17may93jaw |
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Line 200 variable span ( -- c-addr ) \ core-ext-o
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Line 217 variable span ( -- c-addr ) \ core-ext-o
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\G editing capabilites are available. The length of the string is |
\G editing capabilites are available. The length of the string is |
\G stored in @code{span}; it does not include the <return> |
\G stored in @code{span}; it does not include the <return> |
\G character. OBSOLESCENT: superceeded by @code{accept}. |
\G character. OBSOLESCENT: superceeded by @code{accept}. |
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everyline |
0 rot over |
0 rot over |
BEGIN ( maxlen span c-addr pos1 ) |
BEGIN ( maxlen span c-addr pos1 ) |
key decode ( maxlen span c-addr pos2 flag ) |
xkey decode ( maxlen span c-addr pos2 flag ) |
>r 2over = r> or |
>r 2over = r> or |
UNTIL |
UNTIL |
2 pick swap /string type |
2 pick swap /string type |
Line 214 variable span ( -- c-addr ) \ core-ext-o
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Line 232 variable span ( -- c-addr ) \ core-ext-o
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\ defined afterwards) when executing the mark. |
\ defined afterwards) when executing the mark. |
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: included-files-mark ( -- u ) |
: included-files-mark ( -- u ) |
included-files 2@ nip |
included-files @ ; |
blk @ 0= |
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if \ not input from blocks |
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source-id 1 -1 within |
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if \ input from file |
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1- \ do not include the last file (hopefully this is the |
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\ currently included file) |
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then |
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then ; |
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\ hmm, most of the saving appears to be pretty unnecessary: we could |
\ hmm, most of the saving appears to be pretty unnecessary: we could |
\ derive the wordlists and the words that have to be kept from the |
\ derive the wordlists and the words that have to be kept from the |
Line 248 variable span ( -- c-addr ) \ core-ext-o
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Line 258 variable span ( -- c-addr ) \ core-ext-o
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: marker! ( mark -- ) |
: marker! ( mark -- ) |
\ reset included files count; resize will happen on next add-included-file |
\ reset included files count; resize will happen on next add-included-file |
included-files 2@ drop over @ included-files 2! cell+ |
included-files @ over @ min included-files ! cell+ |
\ rest of marker! |
\ rest of marker! |
dup @ swap cell+ ( here rest-of-marker ) |
dup @ swap cell+ ( here rest-of-marker ) |
dup @ voclink ! cell+ |
dup @ voclink ! cell+ |