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Annotation of gforth/kernel/doers.fs, revision 1.2

1.2     ! anton       1: \ run-time code for defining words
        !             2: 
        !             3: \ Copyright (C) 1995,1996,1997,1998 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., 675 Mass Ave, Cambridge, MA 02139, USA.
1.1       pazsan     20: 
                     21: 
                     22: \ If we leave out the compiler we need the runtime code for our defining
                     23: \ words. This file defines the defining words without the
                     24: \ interpretative/compiling part.
                     25: 
                     26: has? compiler 0= [IF]
                     27: 
                     28: \ fillers for interpreter only mode
                     29: .( Do-Fillers: )
                     30: 
                     31: : (does>) ;    
                     32: 
                     33: doer? :dofield 0= [IF] .( DOFIELD )
                     34: | : (Field)  DOES> @ + ;
                     35: [THEN]
                     36: 
                     37: doer? :dodefer 0= [IF] .( DODEFER )
                     38: | : Defer ( "name" -- ) DOES> @ execute ;
                     39: [THEN]
                     40: 
                     41: | : 2Constant ( w1 w2 "name" -- ) \ double
                     42:     DOES> ( -- w1 w2 )
                     43:         2@ ;
                     44: 
                     45: doer? :docon 0= [IF] .( DOCON )
                     46: | : (Constant)  DOES> @ ;
                     47: [THEN]
                     48: 
                     49: doer? :douser 0= [IF] .( DOUSER )
                     50: | : User DOES> @ up @ + ;
                     51: [THEN]
                     52: 
                     53: doer? :dovar 0= [IF] .( DOVAR )
                     54: | : Create ( "name" -- ) \ core
                     55:     DOES> ;
                     56: 
                     57: .( .)
                     58: [THEN]
                     59: