--- gforth/wordinfo.fs 1996/01/07 17:22:17 1.9 +++ gforth/wordinfo.fs 2007/12/31 18:40:24 1.27 @@ -1,12 +1,12 @@ \ WORDINFO.FS V1.0 17may93jaw -\ Copyright (C) 1995 Free Software Foundation, Inc. +\ Copyright (C) 1995,1996,1998,2000,2003 Free Software Foundation, Inc. \ This file is part of Gforth. \ Gforth is free software; you can redistribute it and/or \ 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. \ This program is distributed in the hope that it will be useful, @@ -15,14 +15,13 @@ \ GNU General Public License for more details. \ 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. +\ along with this program. If not, see http://www.gnu.org/licenses/. \ May be cross-compiled \ If you want check values then exclude comments, \ 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 \ and finds out what wordtype we have @@ -31,48 +30,47 @@ INCLUDE look.fs \ the old alias? did not work and it is not used, so I changed \ it in many respects - anton : alias? ( nfa1 -- nfa2|0 ) - \ if nfa1 is an alias, nfa2 is the name of the original word - cell+ dup c@ $80 and 0= - IF - (name>) @ >name ( use look instead? ) + \ if nfa1 is an alias, nfa2 is the name of the original word. + \ if the original word has no name, return 0. + dup cell+ @ alias-mask and 0= + IF ( nfa1 ) + ((name>)) @ >name ELSE drop 0 THEN ; : var? ( nfa -- flag ) - cell+ (name>) >code-address dovar: = ; + ((name>)) >code-address dovar: = ; : con? ( nfa -- flag ) - cell+ (name>) >code-address docon: = ; + ((name>)) >code-address docon: = ; : user? ( nfa -- flag ) - cell+ (name>) >code-address douser: = ; + ((name>)) >code-address douser: = ; : does? ( nfa -- flag ) - \ !! does not work on all installations - cell+ (name>) - >code-address ['] bits >code-address = ; + ((name>)) + >does-code 0<> ; : defered? ( nfa -- flag ) - cell+ (name>) >code-address dodefer: = ; + ((name>)) >code-address dodefer: = ; : colon? ( nfa -- flag ) - cell+ (name>) >code-address docol: = ; + ((name>)) >code-address docol: = ; \ the above words could be factored with create-does>, but this would \ probably make this file incompatible with cross. -\ VALUE VCheck - -\ : value? ( nfa -- flag ) -\ dup does? -\ IF here @ ['] VCheck cell+ @ = -\ dup IF swap (name>) >body @ here ! ELSE nip THEN -\ ELSE drop false THEN ; - +[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 ) - name> - forthstart u< ; + name>int xtprim? ; \ None nestable IDs: