--- gforth/extend.fs	2000/04/27 08:51:33	1.38
+++ gforth/extend.fs	2002/12/04 10:42:58	1.47
@@ -1,6 +1,6 @@
 \ EXTEND.FS    CORE-EXT Word not fully tested!         12may93jaw
 
-\ Copyright (C) 1995,1998 Free Software Foundation, Inc.
+\ Copyright (C) 1995,1998,2000 Free Software Foundation, Inc.
 
 \ This file is part of Gforth.
 
@@ -16,7 +16,7 @@
 
 \ You should have received a copy of the GNU General Public License
 \ 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.
 
 
 \ May be cross-compiled
@@ -25,10 +25,11 @@ decimal
 
 \ .(                                                    12may93jaw
 
-: .(   ( "ccc<paren>" -- ) \ core-ext dot-paren
-  \G Parse a string @i{ccc} delimited by a @code{)} (right
-  \G parenthesis). Display the string. This is often used to display
-  \G progress information during compilation; see examples below.
+: .(   ( compilation,interpretation "ccc<paren>" -- ) \ core-ext dot-paren
+  \G Compilation and interpretation semantics: Parse a string @i{ccc}
+  \G delimited by a @code{)} (right parenthesis). Display the
+  \G string. This is often used to display progress information during
+  \G compilation; see examples below.
   [char] ) parse type ; immediate
 
 \ VALUE 2>R 2R> 2R@                                     17may93jaw
@@ -42,7 +43,9 @@ decimal
 
 ' drop alias d>s ( d -- n ) \ double		d_to_s
 
-: m*/ ( d1 n2 u3 -- dqout ) \ double m-star-slash
+: m*/ ( d1 n2 u3 -- dquot ) \ double m-star-slash
+    \G dquot=(d1*n2)/u3, with the intermediate result being triple-precision.
+    \G In ANS Forth u3 can only be a positive signed number.
     >r s>d >r abs -rot
     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 nip swap
@@ -70,11 +73,6 @@ decimal
 
 \ C"                                                    17may93jaw
 
-: (c")     "lit ;
-
-: CLiteral
-    postpone (c") here over char+ allot  place align ; immediate restrict
-
 : C" ( compilation "ccc<quote>" -- ; run-time  -- c-addr ) \ core-ext c-quote
     \G Compilation: parse a string @i{ccc} delimited by a @code{"}
     \G (double quote). At run-time, return @i{c-addr} which
@@ -100,15 +98,12 @@ decimal
 
 \ ERASE                                                 17may93jaw
 
-: erase ( addr len -- ) \ core-ext
-    \G If @i{len}>0, clear all bits in each location of a memory region
-    \G of @i{len} address units starting at address @i{addr}.
+: erase ( addr u -- ) \ core-ext
+    \G Clear all bits in @i{u} aus starting at @i{addr}.
     \ !! dependence on "1 chars 1 ="
     ( 0 1 chars um/mod nip )  0 fill ;
 : blank ( c-addr u -- ) \ string
-    \G If @i{u}>0, store the character value for a space in each
-    \G location of a memory region
-    \G of @i{u} character units starting at address @i{c-addr}.
+    \G Store the space character into @i{u} chars starting at @i{c-addr}.
     bl fill ;
 
 \ SEARCH                                                02sep94py
@@ -132,6 +127,7 @@ decimal
 
 \ SOURCE-ID SAVE-INPUT RESTORE-INPUT                    11jun93jaw
 
+[IFUNDEF] source-id
 : source-id ( -- 0 | -1 | fileid ) \ core-ext,file source-i-d
     \G Return 0 (the input source is the user input device), -1 (the
     \G input source is a string being processed by @code{evaluate}) or
@@ -146,7 +142,8 @@ decimal
     >in @
     loadfile @
     if
-	loadfile @ file-position throw #TIB @ 1+ 0 d- \ !! bug for CRLF and EOF
+	loadfile @ file-position throw
+	[IFDEF] #fill-bytes #fill-bytes @ [ELSE] #tib @ 1+ [THEN] 0 d-
     else
 	blk @
 	linestart @
@@ -180,7 +177,7 @@ decimal
     r> loadline !
     >in !
     false ;
-
+[THEN]
 \ This things we don't need, but for being complete... jaw
 
 \ EXPECT SPAN                                           17may93jaw