[gforth] / gforth / wordinfo.fs  

gforth: gforth/wordinfo.fs

Diff for /gforth/wordinfo.fs between version 1.12 and 1.24

version 1.12, Wed Aug 21 14:58:45 1996 UTC version 1.24, Sun Jan 19 23:35:30 2003 UTC
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 \ WORDINFO.FS  V1.0                                    17may93jaw  \ WORDINFO.FS  V1.0                                    17may93jaw
   
 \ Copyright (C) 1995 Free Software Foundation, Inc.  \ Copyright (C) 1995-2003 Free Software Foundation, Inc.
   
 \ 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.
   
 \ May be cross-compiled  \ May be cross-compiled
 \ If you want check values then exclude comments,  \ If you want check values then exclude comments,
 \ but keep in mind that this can't be cross-compiled  \ but keep in mind that this can't be cross-compiled
   
 INCLUDE look.fs  require look.fs
   
 \ Wordinfo is a tool that checks a nfa  \ Wordinfo is a tool that checks a nfa
 \ and finds out what wordtype we have  \ and finds out what wordtype we have
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 \ the old alias? did not work and it is not used, so I changed  \ the old alias? did not work and it is not used, so I changed
 \ it in many respects - anton  \ it in many respects - anton
 : alias? ( nfa1 -- nfa2|0 )  : alias? ( nfa1 -- nfa2|0 )
     \ if nfa1 is an alias, nfa2 is the name of the original word      \ if nfa1 is an alias, nfa2 is the name of the original word.
     dup cell+ c@ alias-mask and 0=      \ if the original word has no name, return 0.
       dup cell+ @ alias-mask and 0=
     IF ( nfa1 )      IF ( nfa1 )
         ((name>)) @ >name ( use look instead? )          ((name>)) @ >name
     ELSE      ELSE
         drop 0          drop 0
     THEN ;      THEN ;
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     ((name>)) >code-address douser: = ;      ((name>)) >code-address douser: = ;
   
 : does? ( nfa -- flag )  : does? ( nfa -- flag )
     \ !! does not work on all installations  
     ((name>))      ((name>))
     >code-address ['] spaces >code-address = ;      >does-code 0<> ;
   
 : defered? ( nfa -- flag )  : defered? ( nfa -- flag )
     ((name>)) >code-address dodefer: = ;      ((name>)) >code-address dodefer: = ;
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 \ the above words could be factored with create-does>, but this would  \ the above words could be factored with create-does>, but this would
 \ probably make this file incompatible with cross.  \ probably make this file incompatible with cross.
   
   [IFDEF] forthstart
   : xtprim? ( xt -- flag )
       in-dictionary? 0= ; \ !! does not work for CODE words
   [ELSE]
   : xtprim? ( xt -- flag )
       dup >body swap >code-address = ; \ !! works only for indirect threaded code
                                        \ !! does not work for primitives
   [THEN]
 : prim? ( nfa -- flag )  : prim? ( nfa -- flag )
         name>int          name>int xtprim? ;
         forthstart u< ;  
   
 \ None nestable IDs:  \ None nestable IDs:
   

Generate output suitable for use with a patch program
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Removed from v.1.12  
changed lines
  Added in v.1.24
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