File:  [gforth] / gforth / kernel / tools.fs
Revision 1.22: download - view: text, annotated - select for diffs
Sun May 7 05:46:48 2006 UTC (17 years, 10 months ago) by anton
Branches: MAIN
CVS tags: HEAD
documentation changes

    1: \ TOOLS.FS     Toolkit extentions                      2may93jaw
    2: 
    3: \ Copyright (C) 1995,1998,1999,2001,2003 Free Software Foundation, Inc.
    4: 
    5: \ This file is part of Gforth.
    6: 
    7: \ Gforth is free software; you can redistribute it and/or
    8: \ modify it under the terms of the GNU General Public License
    9: \ as published by the Free Software Foundation; either version 2
   10: \ of the License, or (at your option) any later version.
   11: 
   12: \ This program is distributed in the hope that it will be useful,
   13: \ but WITHOUT ANY WARRANTY; without even the implied warranty of
   14: \ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   15: \ GNU General Public License for more details.
   16: 
   17: \ You should have received a copy of the GNU General Public License
   18: \ along with this program; if not, write to the Free Software
   19: \ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
   20: 
   21: \ May be cross-compiled
   22: 
   23: require ./io.fs		\ type ...
   24: require ./nio.fs	\ . <# ...
   25: require ./int.fs	\ wordlist-id ..
   26: 
   27: hex
   28: 
   29: \ .S            CORE / CORE EXT                         9may93jaw
   30: 
   31: variable maxdepth-.s \ gforth maxdepth-dot-s
   32: \G A variable containing 9 by default.  \code{.s} and \code{f.s}
   33: \G display at most that many stack items.
   34: 9 maxdepth-.s !
   35: 
   36: : .s ( -- ) \ tools dot-s
   37: \G Display the number of items on the data stack, followed by a list
   38: \G of the items (but not more than specified by @code{maxdepth-.s};
   39: \G TOS is the right-most item.
   40:     ." <" depth 0 .r ." > "
   41:     depth 0 max maxdepth-.s @ min
   42:     dup 0
   43:     ?do
   44: 	dup i - pick .
   45:     loop
   46:     drop ;
   47: 
   48: \ DUMP                       2may93jaw - 9may93jaw    06jul93py
   49: \ looks very nice, I know
   50: 
   51: Variable /dump
   52: 
   53: : .4 ( addr -- addr' )
   54:     3 FOR  -1 /dump +!  /dump @ 0<
   55:         IF  ."    "  ELSE  dup c@ 0 <<# # # #> type #>> space  THEN
   56:     char+ NEXT ;
   57: : .chars ( addr -- )
   58:     /dump @ bounds
   59:     ?DO I c@ dup 7f bl within
   60: 	IF  drop [char] .  THEN  emit
   61:     LOOP ;
   62: 
   63: : .line ( addr -- )
   64:   dup .4 space .4 ." - " .4 space .4 drop  10 /dump +!  space .chars ;
   65: 
   66: : dump  ( addr u -- ) \ tools dump
   67:     \G Display @var{u} lines of memory starting at address @var{addr}. Each line
   68:     \G displays the contents of 16 bytes. When Gforth is running under
   69:     \G an operating system you may get @file{Invalid memory address} errors
   70:     \G if you attempt to access arbitrary locations.
   71:     cr base @ >r hex        \ save base on return stack
   72:     0 ?DO  I' I - 10 min /dump !
   73: 	dup 8 u.r ." : " dup .line cr  10 +
   74: 	10 +LOOP
   75:     drop r> base ! ;
   76: 
   77: \ ?                                                     17may93jaw
   78: 
   79: : ? ( a-addr -- ) \ tools question
   80:     \G Display the contents of address @var{a-addr} in the current number base.
   81:     @ . ;
   82: 
   83: \ words visible in roots                               14may93py
   84: 
   85: include  ./../termsize.fs
   86: 
   87: : wordlist-words ( wid -- ) \ gforth
   88:     \G Display the contents of the wordlist wid.
   89:     [ has? ec 0= [IF] ] wordlist-id [ [THEN] ]
   90:     0 swap cr
   91:     BEGIN
   92: 	@ dup
   93:     WHILE
   94: 	2dup name>string nip 2 + dup >r +
   95: 	cols >=
   96: 	IF
   97: 	    cr nip 0 swap
   98: 	THEN
   99: 	dup name>string type space r> rot + swap
  100:     REPEAT
  101:     2drop ;
  102: 
  103: : words
  104:     \G ** this will not get annotated. See other defn in search.fs .. **
  105:     \G It does not work to use "wordset-" prefix since this file is glossed
  106:     \G by cross.fs which doesn't have the same functionalty as makedoc.fs
  107:     [ has? ec 0= [IF] ] context @ [ [ELSE] ] forth-wordlist [ [THEN] ]
  108:     wordlist-words ;
  109: 
  110: ' words alias vlist ( -- ) \ gforth
  111: \g Old (pre-Forth-83) name for @code{WORDS}.

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