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Annotation of gforth/kernel/special.fs, revision 1.4

1.1       anton       1: \ words with non-default and non-immediate compilation semantics
                      2: 
                      3: \ Copyright (C) 1996 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.
                     20: 
                     21: \ this file comes last, because these words override cross' words.
                     22: 
                     23: create s"-buffer /line chars allot
1.4     ! jwilke     24: has? ionly 
        !            25: [IF] : s" [ELSE] :noname [THEN]
        !            26:        [char] " parse
        !            27:        /line min >r s"-buffer r@ cmove
        !            28:        s"-buffer r> ;
        !            29: has? ionly 0= [IF]
        !            30: :noname [char] " parse postpone SLiteral ;
1.1       anton      31: interpret/compile: S" ( compilation 'ccc"' -- ; run-time -- c-addr u ) \ core,file     s-quote
1.4     ! jwilke     32: [THEN]
1.1       anton      33: 
1.4     ! jwilke     34: has? ionly 0= [IF]
1.2       anton      35: : [IS] ( compilation "name" -- ; run-time xt -- ) \ possibly-gforth bracket-is
                     36:     ' >body postpone ALiteral postpone ! ; immediate restrict
                     37: 
1.1       anton      38: :noname    ' >body ! ;
1.2       anton      39: ' [IS]
1.1       anton      40: interpret/compile: IS ( addr "name" -- ) \ gforth
                     41: 
                     42: :noname    ' >body @ ;
                     43: :noname    ' >body postpone ALiteral postpone @ ;
                     44: interpret/compile: What's ( "name" -- addr ) \ gforth
                     45: 
                     46: :noname    [char] " parse type ;
                     47: :noname    postpone (.") ,"  align ;
                     48: interpret/compile: ." ( compilation 'ccc"' -- ; run-time -- )  \ core  dot-quote
                     49: 
                     50: \ DOES>                                                17mar93py
                     51: 
                     52: :noname
                     53:     dodoes, here !does ]
                     54:     defstart :-hook ;
                     55: :noname
                     56:     ;-hook postpone (does>) ?struc dodoes,
                     57:     defstart :-hook ;
                     58: interpret/compile: DOES>  ( compilation colon-sys1 -- colon-sys2 ; run-time nest-sys -- ) \ core       does
                     59:     
                     60: ' IS Alias TO ( addr "name" -- ) \ core-ext
                     61: immediate
                     62: 
1.4     ! jwilke     63: [THEN]
1.1       anton      64: 
1.3       jwilke     65: doer? :docon [IF]
                     66: : docon: ( -- addr )   \ gforth
                     67:     \G the code address of a @code{CONSTANT}
                     68:     ['] bl >code-address ;
                     69: [THEN]
                     70: 
                     71: : docol: ( -- addr )   \ gforth
                     72:     \G the code address of a colon definition
                     73:     ['] on >code-address ;
                     74: \ !! mark on
                     75: 
                     76: doer? :dovar [IF]
                     77: : dovar: ( -- addr )   \ gforth
                     78:     \G the code address of a @code{CREATE}d word
                     79:     \ in rom-applications variable might be implemented with constant
                     80:     \ use really a created word!
                     81:     ['] ??? >code-address ;
                     82: [THEN]
                     83: 
                     84: doer? :douser [IF]
                     85: : douser: ( -- addr )  \ gforth
                     86:     \G the code address of a @code{USER} variable
                     87:     ['] sp0 >code-address ;
                     88: [THEN]
                     89: 
                     90: doer? :dodefer [IF]
                     91: : dodefer: ( -- addr ) \ gforth
                     92:     \G the code address of a @code{defer}ed word
                     93:     ['] source >code-address ;
                     94: [THEN]
                     95: 
                     96: doer? :dofield [IF]
                     97: : dofield: ( -- addr ) \ gforth
                     98:     \G the code address of a @code{field}
                     99:     ['] reveal-method >code-address ;
                    100: [THEN]
                    101: 
1.4     ! jwilke    102: has? prims 0= [IF]
1.3       jwilke    103: : dodoes: ( -- addr )  \ gforth
                    104:     \G the code address of a @code{field}
                    105:     ['] spaces >code-address ;
                    106: [THEN]
                    107: 
                    108: : interpret/compile? ( xt -- flag )
                    109:     >does-code ['] S" >does-code = ;
                    110: