Annotation of gforth/cross.fs, revision 1.77

1.1       anton       1: \ CROSS.FS     The Cross-Compiler                      06oct92py
                      2: \ Idea and implementation: Bernd Paysan (py)
1.30      anton       3: 
1.69      anton       4: \ Copyright (C) 1995,1996,1997,1998,1999 Free Software Foundation, Inc.
1.30      anton       5: 
                      6: \ This file is part of Gforth.
                      7: 
                      8: \ Gforth is free software; you can redistribute it and/or
                      9: \ modify it under the terms of the GNU General Public License
                     10: \ as published by the Free Software Foundation; either version 2
                     11: \ of the License, or (at your option) any later version.
                     12: 
                     13: \ This program is distributed in the hope that it will be useful,
                     14: \ but WITHOUT ANY WARRANTY; without even the implied warranty of
                     15: \ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
                     16: \ GNU General Public License for more details.
                     17: 
                     18: \ You should have received a copy of the GNU General Public License
                     19: \ along with this program; if not, write to the Free Software
                     20: \ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
1.1       anton      21: 
1.67      jwilke     22: 0 
                     23: [IF]
                     24: 
                     25: ToDo:
                     26: Crossdoc destination ./doc/crossdoc.fd makes no sense when
                     27: cross.fs is uses seperately. jaw
                     28: Do we need this char translation with >address and in branchoffset? 
                     29: (>body also affected) jaw
                     30: Clean up mark> and >resolve stuff jaw
                     31: 
                     32: [THEN]
1.48      anton      33: 
1.77    ! jwilke     34: hex
        !            35: 
        !            36: \ debugging for compiling
        !            37: 
        !            38: \ print stack at each colon definition
        !            39: \ : : save-input cr bl word count type restore-input throw .s : ;
        !            40: 
        !            41: \ print stack at each created word
        !            42: \ : create save-input cr bl word count type restore-input throw .s create ;
        !            43: 
        !            44: 
        !            45: \ \ -------------  Setup Vocabularies
        !            46: 
        !            47: \ Remark: Vocabulary is not ANS, but it should work...
        !            48: 
        !            49: Vocabulary Cross
        !            50: Vocabulary Target
        !            51: Vocabulary Ghosts
        !            52: Vocabulary Minimal
        !            53: only Forth also Target also also
        !            54: definitions Forth
        !            55: 
        !            56: : T  previous Cross also Target ; immediate
        !            57: : G  Ghosts ; immediate
        !            58: : H  previous Forth also Cross ; immediate
        !            59: 
        !            60: forth definitions
        !            61: 
        !            62: : T  previous Cross also Target ; immediate
        !            63: : G  Ghosts ; immediate
        !            64: 
        !            65: : >cross  also Cross definitions previous ;
        !            66: : >target also Target definitions previous ;
        !            67: : >minimal also Minimal definitions previous ;
        !            68: 
        !            69: H
        !            70: 
        !            71: >CROSS
        !            72: 
        !            73: \ find out whether we are compiling with gforth
        !            74: 
        !            75: : defined? bl word find nip ;
        !            76: defined? emit-file defined? toupper and \ drop 0
        !            77: [IF]
        !            78: \ use this in a gforth system
        !            79: : \GFORTH ; immediate
        !            80: : \ANSI postpone \ ; immediate
        !            81: [ELSE]
        !            82: : \GFORTH postpone \ ; immediate
        !            83: : \ANSI ; immediate
        !            84: [THEN]
        !            85: 
        !            86: \ANSI : [IFUNDEF] defined? 0= postpone [IF] ; immediate
        !            87: \ANSI : [IFDEF] defined? postpone [IF] ; immediate
        !            88: 0 \ANSI drop 1
        !            89: [IF]
        !            90: : \G postpone \ ; immediate
        !            91: : rdrop postpone r> postpone drop ; immediate
        !            92: : name bl word count ;
        !            93: : bounds over + swap ;
        !            94: : scan >r BEGIN dup WHILE over c@ r@ <> WHILE 1 /string REPEAT THEN rdrop ;
        !            95: : linked here over @ , swap ! ;
        !            96: : alias create , DOES> @ EXECUTE ;
        !            97: : defer ['] noop alias ;
        !            98: : is state @ 
        !            99:   IF ' >body postpone literal postpone ! 
        !           100:   ELSE ' >body ! THEN ; immediate
        !           101: : 0>= 0< 0= ;
        !           102: : d<> rot <> -rot <> or ;
        !           103: : toupper dup [char] a [char] z 1+ within IF [char] A [char] a - + THEN ;
        !           104: Variable ebuf
        !           105: : emit-file ( c fd -- ior ) swap ebuf c! ebuf 1 chars rot write-file ;
        !           106: 0a Constant #lf
        !           107: 0d Constant #cr
        !           108: 
        !           109: [IFUNDEF] Warnings Variable Warnings [THEN]
        !           110: 
        !           111: \ \ Number parsing                                     23feb93py
        !           112: 
        !           113: \ number? number                                       23feb93py
        !           114: 
        !           115: Variable dpl
        !           116: 
        !           117: hex
        !           118: Create bases   10 ,   2 ,   A , 100 ,
        !           119: \              16     2    10   character
        !           120: 
        !           121: \ !! protect BASE saving wrapper against exceptions
        !           122: : getbase ( addr u -- addr' u' )
        !           123:     over c@ [char] $ - dup 4 u<
        !           124:     IF
        !           125:        cells bases + @ base ! 1 /string
        !           126:     ELSE
        !           127:        drop
        !           128:     THEN ;
        !           129: 
        !           130: : sign? ( addr u -- addr u flag )
        !           131:     over c@ [char] - =  dup >r
        !           132:     IF
        !           133:        1 /string
        !           134:     THEN
        !           135:     r> ;
        !           136: 
        !           137: : s>unumber? ( addr u -- ud flag )
        !           138:     base @ >r  dpl on  getbase
        !           139:     0. 2swap
        !           140:     BEGIN ( d addr len )
        !           141:        dup >r >number dup
        !           142:     WHILE \ there are characters left
        !           143:        dup r> -
        !           144:     WHILE \ the last >number parsed something
        !           145:        dup 1- dpl ! over c@ [char] . =
        !           146:     WHILE \ the current char is '.'
        !           147:        1 /string
        !           148:     REPEAT  THEN \ there are unparseable characters left
        !           149:        2drop false
        !           150:     ELSE
        !           151:        rdrop 2drop true
        !           152:     THEN
        !           153:     r> base ! ;
        !           154: 
        !           155: \ ouch, this is complicated; there must be a simpler way - anton
        !           156: : s>number? ( addr len -- d f )
        !           157:     \ converts string addr len into d, flag indicates success
        !           158:     sign? >r
        !           159:     s>unumber?
        !           160:     0= IF
        !           161:         rdrop false
        !           162:     ELSE \ no characters left, all ok
        !           163:        r>
        !           164:        IF
        !           165:            dnegate
        !           166:        THEN
        !           167:        true
        !           168:     THEN ;
        !           169: 
        !           170: : s>number ( addr len -- d )
        !           171:     \ don't use this, there is no way to tell success
        !           172:     s>number? drop ;
        !           173: 
        !           174: : snumber? ( c-addr u -- 0 / n -1 / d 0> )
        !           175:     s>number? 0=
        !           176:     IF
        !           177:        2drop false  EXIT
        !           178:     THEN
        !           179:     dpl @ dup 0< IF
        !           180:        nip
        !           181:     ELSE
        !           182:        1+
        !           183:     THEN ;
        !           184: 
        !           185: : number? ( string -- string 0 / n -1 / d 0> )
        !           186:     dup >r count snumber? dup if
        !           187:        rdrop
        !           188:     else
        !           189:        r> swap
        !           190:     then ;
        !           191: 
        !           192: : number ( string -- d )
        !           193:     number? ?dup 0= abort" ?"  0<
        !           194:     IF
        !           195:        s>d
        !           196:     THEN ;
        !           197: 
        !           198: [THEN]
1.48      anton     199: 
1.52      jwilke    200: hex     \ the defualt base for the cross-compiler is hex !!
                    201: Warnings off
                    202: 
                    203: \ words that are generaly useful
                    204: 
1.59      pazsan    205: : KB  400 * ;
1.52      jwilke    206: : >wordlist ( vocabulary-xt -- wordlist-struct )
                    207:   also execute get-order swap >r 1- set-order r> ;
                    208: 
                    209: : umax 2dup u< IF swap THEN drop ;
                    210: : umin 2dup u> IF swap THEN drop ;
1.1       anton     211: 
1.23      pazsan    212: : string, ( c-addr u -- )
                    213:     \ puts down string as cstring
                    214:     dup c, here swap chars dup allot move ;
1.5       pazsan    215: 
1.77    ! jwilke    216: : ," [char] " parse string, ;
        !           217: 
1.52      jwilke    218: : SetValue ( n -- <name> )
1.54      pazsan    219: \G Same behaviour as "Value" if the <name> is not defined
                    220: \G Same behaviour as "to" if <name> is defined
1.52      jwilke    221: \G SetValue searches in the current vocabulary
1.68      jwilke    222:   save-input bl word >r restore-input throw r> count
                    223:   get-current search-wordlist
                    224:   IF   drop >r
                    225:        \ we have to set current to be topmost context wordlist
                    226:        get-order get-order get-current swap 1+ set-order
                    227:        r> ['] to execute
1.74      jwilke    228:        set-order
1.68      jwilke    229:   ELSE Value THEN ;
1.52      jwilke    230: 
                    231: : DefaultValue ( n -- <name> )
1.54      pazsan    232: \G Same behaviour as "Value" if the <name> is not defined
                    233: \G DefaultValue searches in the current vocabulary
1.52      jwilke    234:  save-input bl word >r restore-input throw r> count
                    235:  get-current search-wordlist
1.56      pazsan    236:  IF bl word drop 2drop ELSE Value THEN ;
1.1       anton     237: 
                    238: hex
                    239: 
1.52      jwilke    240: \ 1 Constant Cross-Flag        \ to check whether assembler compiler plug-ins are
                    241:                        \ for cross-compiling
                    242: \ No! we use "[IFUNDEF]" there to find out whether we are target compiling!!!
                    243: 
                    244: : comment? ( c-addr u -- c-addr u )
                    245:         2dup s" (" compare 0=
                    246:         IF    postpone (
                    247:         ELSE  2dup s" \" compare 0= IF postpone \ THEN
                    248:         THEN ;
                    249: 
                    250: \ Begin CROSS COMPILER:
                    251: 
1.74      jwilke    252: \ debugging
1.52      jwilke    253: 
1.74      jwilke    254: 0 [IF]
                    255: 
                    256: This implements debugflags for the cross compiler and the compiled
                    257: images. It works identical to the has-flags in the environment.
                    258: The debugflags are defined in a vocabluary. If the word exists and
                    259: its value is true, the flag is switched on.
                    260: 
                    261: [THEN]
                    262: 
1.77    ! jwilke    263: >CROSS
        !           264: 
1.74      jwilke    265: Vocabulary debugflags  \ debug flags for cross
                    266: also debugflags get-order over
                    267: Constant debugflags-wl
                    268: set-order previous
                    269: 
                    270: : DebugFlag
                    271:   get-current >r debugflags-wl set-current
                    272:   SetValue
                    273:   r> set-current ;
                    274: 
                    275: : Debug? ( adr u -- flag )
                    276: \G return true if debug flag is defined or switched on
                    277:   debugflags-wl search-wordlist
                    278:   IF EXECUTE
                    279:   ELSE false THEN ;
                    280: 
                    281: : D? ( <name> -- flag )
                    282: \G return true if debug flag is defined or switched on
                    283: \G while compiling we do not return the current value but
                    284:   bl word count debug? ;
                    285: 
                    286: : [d?]
                    287: \G compile the value-xt so the debug flag can be switched
                    288: \G the flag must exist!
                    289:   bl word count debugflags-wl search-wordlist
                    290:   IF   compile,
                    291:   ELSE  -1 ABORT" unknown debug flag"
                    292:        \ POSTPONE false 
                    293:   THEN ; immediate
1.54      pazsan    294: 
1.77    ! jwilke    295: \ \ --------------------       source file
        !           296: 
        !           297: decimal
        !           298: 
        !           299: Variable cross-file-list
        !           300: 0 cross-file-list !
        !           301: Variable target-file-list
        !           302: 0 target-file-list !
        !           303: Variable host-file-list
        !           304: 0 host-file-list !
        !           305: 
        !           306: cross-file-list Value file-list
        !           307: 0 Value source-desc
        !           308: 
        !           309: \ file loading
        !           310: 
        !           311: : >fl-id   1 cells + ;
        !           312: : >fl-name 2 cells + ;
        !           313: 
        !           314: Variable filelist 0 filelist !
        !           315: Create NoFile ," #load-file#"
        !           316: 
        !           317: : loadfile ( -- adr )
        !           318:   source-desc ?dup IF >fl-name ELSE NoFile THEN ;
        !           319: 
        !           320: : sourcefilename ( -- adr len ) 
        !           321:   loadfile count ;
        !           322: 
        !           323: \ANSI : sourceline# 0 ;
        !           324: 
        !           325: \ \ --------------------       path handling from kernel/paths.fs
        !           326: 
        !           327: \ paths.fs path file handling                                    03may97jaw
        !           328: 
        !           329: \ -Changing the search-path:
        !           330: \ fpath+ <path>        adds a directory to the searchpath
        !           331: \ fpath= <path>|<path> makes complete now searchpath
        !           332: \                      seperator is |
        !           333: \ .fpath               displays the search path
        !           334: \ remark I: 
        !           335: \ a ./ in the beginning of filename is expanded to the directory the
        !           336: \ current file comes from. ./ can also be included in the search-path!
        !           337: \ ~+/ loads from the current working directory
        !           338: 
        !           339: \ remark II:
        !           340: \ if there is no sufficient space for the search path increase it!
        !           341: 
        !           342: 
        !           343: \ -Creating custom paths:
        !           344: 
        !           345: \ It is possible to use the search mechanism on yourself.
        !           346: 
        !           347: \ Make a buffer for the path:
        !           348: \ create mypath        100 chars ,     \ maximum length (is checked)
        !           349: \              0 ,             \ real len
        !           350: \              100 chars allot \ space for path
        !           351: \ use the same functions as above with:
        !           352: \ mypath path+ 
        !           353: \ mypath path=
        !           354: \ mypath .path
        !           355: 
        !           356: \ do a open with the search path:
        !           357: \ open-path-file ( adr len path -- fd adr len ior )
        !           358: \ the file is opened read-only; if the file is not found an error is generated
        !           359: 
        !           360: \ questions to: wilke@jwdt.com
        !           361: 
        !           362: [IFUNDEF] +place
        !           363: : +place ( adr len adr )
        !           364:         2dup >r >r
        !           365:         dup c@ char+ + swap move
        !           366:         r> r> dup c@ rot + swap c! ;
        !           367: [THEN]
        !           368: 
        !           369: [IFUNDEF] place
        !           370: : place ( c-addr1 u c-addr2 )
        !           371:         2dup c! char+ swap move ;
        !           372: [THEN]
        !           373: 
        !           374: \ if we have path handling, use this and the setup of it
        !           375: [IFUNDEF] open-fpath-file
        !           376: 
        !           377: create sourcepath 1024 chars , 0 , 1024 chars allot \ !! make this dynamic
        !           378: sourcepath value fpath
        !           379: 
        !           380: : also-path ( adr len path^ -- )
        !           381:   >r
        !           382:   \ len check
        !           383:   r@ cell+ @ over + r@ @ u> ABORT" path buffer too small!"
        !           384:   \ copy into
        !           385:   tuck r@ cell+ dup @ cell+ + swap cmove
        !           386:   \ make delimiter
        !           387:   0 r@ cell+ dup @ cell+ + 2 pick + c! 1 + r> cell+ +!
        !           388:   ;
        !           389: 
        !           390: : only-path ( adr len path^ -- )
        !           391:   dup 0 swap cell+ ! also-path ;
        !           392: 
        !           393: : path+ ( path-addr  "dir" -- ) \ gforth
        !           394:     \G Add the directory @var{dir} to the search path @var{path-addr}.
        !           395:     name rot also-path ;
        !           396: 
        !           397: : fpath+ ( "dir" ) \ gforth
        !           398:     \G Add directory @var{dir} to the Forth search path.
        !           399:     fpath path+ ;
        !           400: 
        !           401: : path= ( path-addr "dir1|dir2|dir3" ) \ gforth
        !           402:     \G Make a complete new search path; the path separator is |.
        !           403:     name 2dup bounds ?DO i c@ [char] | = IF 0 i c! THEN LOOP
        !           404:     rot only-path ;
        !           405: 
        !           406: : fpath= ( "dir1|dir2|dir3" ) \ gforth
        !           407:     \G Make a complete new Forth search path; the path separator is |.
        !           408:     fpath path= ;
        !           409: 
        !           410: : path>counted  cell+ dup cell+ swap @ ;
        !           411: 
        !           412: : next-path ( adr len -- adr2 len2 )
        !           413:   2dup 0 scan
        !           414:   dup 0= IF     2drop 0 -rot 0 -rot EXIT THEN
        !           415:   >r 1+ -rot r@ 1- -rot
        !           416:   r> - ;
        !           417: 
        !           418: : previous-path ( path^ -- )
        !           419:   dup path>counted
        !           420:   BEGIN tuck dup WHILE repeat ;
        !           421: 
        !           422: : .path ( path-addr -- ) \ gforth
        !           423:     \G Display the contents of the search path @var{path-addr}.
        !           424:     path>counted
        !           425:     BEGIN next-path dup WHILE type space REPEAT 2drop 2drop ;
        !           426: 
        !           427: : .fpath ( -- ) \ gforth
        !           428:     \G Display the contents of the Forth search path.
        !           429:     fpath .path ;
        !           430: 
        !           431: : absolut-path? ( addr u -- flag ) \ gforth
        !           432:     \G A path is absolute if it starts with a / or a ~ (~ expansion),
        !           433:     \G or if it is in the form ./*, extended regexp: ^[/~]|./, or if
        !           434:     \G it has a colon as second character ("C:...").  Paths simply
        !           435:     \G containing a / are not absolute!
        !           436:     2dup 2 u> swap 1+ c@ [char] : = and >r \ dos absoulte: c:/....
        !           437:     over c@ [char] / = >r
        !           438:     over c@ [char] ~ = >r
        !           439:     \ 2dup 3 min S" ../" compare 0= r> or >r \ not catered for in expandtopic
        !           440:     2 min S" ./" compare 0=
        !           441:     r> r> r> or or or ;
        !           442: 
        !           443: Create ofile 0 c, 255 chars allot
        !           444: Create tfile 0 c, 255 chars allot
        !           445: 
        !           446: : pathsep? dup [char] / = swap [char] \ = or ;
        !           447: 
        !           448: : need/   ofile dup c@ + c@ pathsep? 0= IF s" /" ofile +place THEN ;
        !           449: 
        !           450: : extractpath ( adr len -- adr len2 )
        !           451:   BEGIN dup WHILE 1-
        !           452:         2dup + c@ pathsep? IF EXIT THEN
        !           453:   REPEAT ;
        !           454: 
        !           455: : remove~+ ( -- )
        !           456:     ofile count 3 min s" ~+/" compare 0=
        !           457:     IF
        !           458:        ofile count 3 /string ofile place
        !           459:     THEN ;
        !           460: 
        !           461: : expandtopic ( -- ) \ stack effect correct? - anton
        !           462:     \ expands "./" into an absolute name
        !           463:     ofile count 2 min s" ./" compare 0=
        !           464:     IF
        !           465:        ofile count 1 /string tfile place
        !           466:        0 ofile c! sourcefilename extractpath ofile place
        !           467:        ofile c@ IF need/ THEN
        !           468:        tfile count over c@ pathsep? IF 1 /string THEN
        !           469:        ofile +place
        !           470:     THEN ;
        !           471: 
        !           472: : compact.. ( adr len -- adr2 len2 )
        !           473: \ deletes phrases like "xy/.." out of our directory name 2dec97jaw
        !           474:   over >r -1 >r
        !           475:   BEGIN dup WHILE
        !           476:        over c@ pathsep? 
        !           477:        IF      r@ -1 =
        !           478:                IF      r> drop dup >r
        !           479:                ELSE    2dup 1 /string 
        !           480:                        3 min s" ../" compare
        !           481:                        0=
        !           482:                        IF      r@ over - ( diff )
        !           483:                                2 pick swap - ( dest-adr )
        !           484:                                >r 3 /string r> swap 2dup >r >r
        !           485:                                move r> r>
        !           486:                        ELSE    r> drop dup >r
        !           487:                        THEN
        !           488:                THEN
        !           489:        THEN
        !           490:        1 /string
        !           491:   REPEAT 
        !           492:   r> drop 
        !           493:   drop r> tuck - ;
        !           494: 
        !           495: : reworkdir ( -- )
        !           496:   remove~+
        !           497:   ofile count compact..
        !           498:   nip ofile c! ;
        !           499: 
        !           500: : open-ofile ( -- fid ior )
        !           501:     \G opens the file whose name is in ofile
        !           502:     expandtopic reworkdir
        !           503:     ofile count r/o open-file ;
        !           504: 
        !           505: : check-path ( adr1 len1 adr2 len2 -- fd 0 | 0 <>0 )
        !           506:   0 ofile ! >r >r ofile place need/
        !           507:   r> r> ofile +place
        !           508:   open-ofile ;
        !           509: 
        !           510: : open-path-file ( addr1 u1 path-addr -- wfileid addr2 u2 0 | ior ) \ gforth
        !           511:     \G Look in path @var{path-addr} for the file specified by @var{addr1 u1}.
        !           512:     \G If found, the resulting path and an open file descriptor
        !           513:     \G are returned. If the file is not found, @var{ior} is non-zero.
        !           514:   >r
        !           515:   2dup absolut-path?
        !           516:   IF    rdrop
        !           517:         ofile place open-ofile
        !           518:        dup 0= IF >r ofile count r> THEN EXIT
        !           519:   ELSE  r> path>counted
        !           520:         BEGIN  next-path dup
        !           521:         WHILE  5 pick 5 pick check-path
        !           522:         0= IF >r 2drop 2drop r> ofile count 0 EXIT ELSE drop THEN
        !           523:   REPEAT
        !           524:         2drop 2drop 2drop -38
        !           525:   THEN ;
        !           526: 
        !           527: : open-fpath-file ( addr1 u1 -- wfileid addr2 u2 0 | ior ) \ gforth
        !           528:     \G Look in the Forth search path for the file specified by @var{addr1 u1}.
        !           529:     \G If found, the resulting path and an open file descriptor
        !           530:     \G are returned. If the file is not found, @var{ior} is non-zero.
        !           531:     fpath open-path-file ;
        !           532: 
        !           533: fpath= ~+
        !           534: 
        !           535: [THEN]
        !           536: 
        !           537: \ \ --------------------       include require                 13may99jaw
        !           538: 
        !           539: >CROSS
        !           540: 
        !           541: : add-included-file ( adr len -- adr )
        !           542:   dup >fl-name char+ allocate throw >r
        !           543:   file-list @ r@ ! r@ file-list !
        !           544:   r@ >fl-name place r> ;
        !           545: 
        !           546: : included? ( c-addr u -- f )
        !           547:   file-list
        !           548:   BEGIN        @ dup
        !           549:   WHILE        >r 2dup r@ >fl-name count compare 0=
        !           550:        IF rdrop 2drop true EXIT THEN
        !           551:        r>
        !           552:   REPEAT
        !           553:   2drop drop false ;   
        !           554: 
        !           555: false DebugFlag showincludedfiles
        !           556: 
        !           557: : included1 ( fd adr u -- )
        !           558: \ include file adr u / fd
        !           559: \ we don't use fd with include-file, because the forth system
        !           560: \ doesn't know the name of the file to get a nice error report
        !           561:   [d?] showincludedfiles
        !           562:   IF   cr ." Including: " 2dup type ." ..." THEN
        !           563:   rot close-file throw
        !           564:   source-desc >r
        !           565:   add-included-file to source-desc 
        !           566:   sourcefilename
        !           567:   ['] included catch
        !           568:   r> to source-desc 
        !           569:   throw ;
        !           570: 
        !           571: : included ( adr len -- )
        !           572:        cross-file-list to file-list
        !           573:        open-fpath-file throw 
        !           574:         included1 ;
        !           575: 
        !           576: : required ( adr len -- )
        !           577:        cross-file-list to file-list
        !           578:        open-fpath-file throw \ 2dup cr ." R:" type
        !           579:        2dup included?
        !           580:        IF      2drop close-file throw
        !           581:        ELSE    included1
        !           582:        THEN ;
        !           583: 
        !           584: : include bl word count included ;
        !           585: 
        !           586: : require bl word count required ;
        !           587: 
        !           588: also forth definitions previous
        !           589: 
        !           590: : included ( adr len -- ) included ;
        !           591: 
        !           592: : required ( adr len -- ) required ;
        !           593: 
        !           594: : include include ;
        !           595: 
        !           596: : require require ;
        !           597: 
        !           598: >CROSS
        !           599: hex
        !           600: 
        !           601: \ \ --------------------        Error Handling                  05aug97jaw
        !           602: 
        !           603: \ Flags
        !           604: 
        !           605: also forth definitions  \ these values may be predefined before
        !           606:                         \ the cross-compiler is loaded
        !           607: 
        !           608: false DefaultValue stack-warn           \ check on empty stack at any definition
        !           609: false DefaultValue create-forward-warn   \ warn on forward declaration of created words
        !           610: 
        !           611: previous >CROSS
        !           612: 
        !           613: : .dec
        !           614:   base @ decimal swap . base ! ;
        !           615: 
        !           616: : .sourcepos
        !           617:   cr sourcefilename type ." :"
        !           618:   sourceline# .dec ;
        !           619: 
        !           620: : warnhead
        !           621: \G display error-message head
        !           622: \G perhaps with linenumber and filename
        !           623:   .sourcepos ." Warning: " ;
        !           624: 
        !           625: : empty? depth IF .sourcepos ." Stack not empty!"  THEN ;
        !           626: 
        !           627: stack-warn [IF]
        !           628: : defempty? empty? ;
        !           629: [ELSE]
        !           630: : defempty? ; immediate
        !           631: [THEN]
        !           632: 
1.52      jwilke    633: \ \ GhostNames Ghosts                                  9may93jaw
                    634: 
                    635: \ second name source to search trough list
                    636: 
                    637: VARIABLE GhostNames
                    638: 0 GhostNames !
                    639: 
                    640: : GhostName ( -- addr )
                    641:     here GhostNames @ , GhostNames ! here 0 ,
                    642:     bl word count
                    643:     \ 2dup type space
                    644:     string, \ !! cfalign ?
                    645:     align ;
                    646: 
                    647: \ Ghost Builder                                        06oct92py
                    648: 
                    649: \ <T T> new version with temp variable                 10may93jaw
                    650: 
                    651: VARIABLE VocTemp
                    652: 
                    653: : <T  get-current VocTemp ! also Ghosts definitions ;
                    654: : T>  previous VocTemp @ set-current ;
                    655: 
                    656: hex
                    657: 4711 Constant <fwd>             4712 Constant <res>
                    658: 4713 Constant <imm>             4714 Constant <do:>
1.75      jwilke    659: 4715 Constant <skip>
1.52      jwilke    660: 
                    661: \ iForth makes only immediate directly after create
                    662: \ make atonce trick! ?
                    663: 
                    664: Variable atonce atonce off
                    665: 
1.76      jwilke    666: : NoExec true ABORT" CROSS: Don't execute ghost, or immediate target word" ;
1.52      jwilke    667: 
                    668: : GhostHeader <fwd> , 0 , ['] NoExec , ;
                    669: 
                    670: : >magic ;             \ type of ghost
                    671: : >link cell+ ;                \ pointer where ghost is in target, or if unresolved
                    672:                        \ points to the where we have to resolve (linked-list)
                    673: : >exec cell+ cell+ ;  \ execution symantics (while target compiling) of ghost
                    674: : >end 3 cells + ;     \ room for additional tags
                    675:                        \ for builder (create, variable...) words the
                    676:                        \ execution symantics of words built are placed here
                    677: 
                    678: Variable executed-ghost \ last executed ghost, needed in tcreate and gdoes>
                    679: Variable last-ghost    \ last ghost that is created
                    680: Variable last-header-ghost \ last ghost definitions with header
                    681: 
                    682: : Make-Ghost ( "name" -- ghost )
                    683:   >in @ GhostName swap >in !
                    684:   <T Create atonce @ IF immediate atonce off THEN
                    685:   here tuck swap ! ghostheader T>
                    686:   dup last-ghost !
                    687:   DOES> dup executed-ghost ! >exec @ execute ;
                    688: 
                    689: \ ghost words                                          14oct92py
                    690: \                                          changed:    10may93py/jaw
                    691: 
                    692: : gfind   ( string -- ghost true/1 / string false )
                    693: \ searches for string in word-list ghosts
1.77    ! jwilke    694:   dup count [ ' ghosts >wordlist ] Literal search-wordlist
1.52      jwilke    695:   dup IF >r >body nip r>  THEN ;
                    696: 
                    697: : gdiscover ( xt -- ghost true | xt false )
                    698:   GhostNames
                    699:   BEGIN @ dup
                    700:   WHILE 2dup
                    701:         cell+ @ dup >magic @ <fwd> <>
                    702:         >r >link @ = r> and
                    703:         IF cell+ @ nip true EXIT THEN
                    704:   REPEAT
                    705:   drop false ;
                    706: 
                    707: VARIABLE Already
                    708: 
                    709: : ghost   ( "name" -- ghost )
                    710:   Already off
1.76      jwilke    711:   >in @  bl word gfind   IF  atonce off Already on nip EXIT  THEN
1.52      jwilke    712:   drop  >in !  Make-Ghost ;
                    713: 
                    714: : >ghostname ( ghost -- adr len )
                    715:   GhostNames
                    716:   BEGIN @ dup
                    717:   WHILE 2dup cell+ @ =
                    718:   UNTIL nip 2 cells + count
1.54      pazsan    719:   ELSE  2drop 
                    720:        \ true abort" CROSS: Ghostnames inconsistent"
                    721:        s" ?!?!?!"
1.52      jwilke    722:   THEN ;
                    723: 
1.77    ! jwilke    724: \ ' >ghostname ALIAS @name
1.52      jwilke    725: 
                    726: : forward? ( ghost -- flag )
                    727:   >magic @ <fwd> = ;
                    728: 
1.75      jwilke    729: : undefined? ( ghost -- flag )
                    730:   >magic @ dup <fwd> = swap <skip> = or ;
                    731: 
1.52      jwilke    732: \ Predefined ghosts                                    12dec92py
                    733: 
                    734: ghost 0=                                        drop
                    735: ghost branch    ghost ?branch                   2drop
                    736: ghost (do)      ghost (?do)                     2drop
                    737: ghost (for)                                     drop
                    738: ghost (loop)    ghost (+loop)                   2drop
                    739: ghost (next)                                    drop
                    740: ghost unloop    ghost ;S                        2drop
                    741: ghost lit       ghost (compile) ghost !         2drop drop
                    742: ghost (does>)   ghost noop                      2drop
                    743: ghost (.")      ghost (S")      ghost (ABORT")  2drop drop
                    744: ghost '                                         drop
                    745: ghost :docol    ghost :doesjump ghost :dodoes   2drop drop
1.54      pazsan    746: ghost :dovar                                   drop
1.52      jwilke    747: ghost over      ghost =         ghost drop      2drop drop
                    748: ghost - drop
1.54      pazsan    749: ghost 2drop drop
                    750: ghost 2dup drop
1.52      jwilke    751: 
                    752: \ \ Parameter for target systems                         06oct92py
                    753: 
                    754: \ we define it ans like...
                    755: wordlist Constant target-environment
                    756: 
                    757: VARIABLE env-current \ save information of current dictionary to restore with environ>
                    758: 
                    759: : >ENVIRON get-current env-current ! target-environment set-current ;
                    760: : ENVIRON> env-current @ set-current ; 
1.43      pazsan    761: 
1.48      anton     762: >TARGET
1.43      pazsan    763: 
1.67      jwilke    764: : environment? ( adr len -- [ x ] true | false )
1.52      jwilke    765:   target-environment search-wordlist 
                    766:   IF execute true ELSE false THEN ;
                    767: 
1.67      jwilke    768: : e? bl word count T environment? H 0= ABORT" environment variable not defined!" ;
1.52      jwilke    769: 
1.67      jwilke    770: : has?         bl word count T environment? H 
1.53      jwilke    771:        IF      \ environment variable is present, return its value
                    772:        ELSE    \ environment variable is not present, return false
1.75      jwilke    773:                false \ debug true ABORT" arg" 
1.53      jwilke    774:        THEN ;
1.52      jwilke    775: 
                    776: : $has? T environment? H IF ELSE false THEN ;
1.48      anton     777: 
1.54      pazsan    778: >ENVIRON get-order get-current swap 1+ set-order
                    779: true SetValue compiler
1.53      jwilke    780: true  SetValue cross
1.54      pazsan    781: true SetValue standard-threading
                    782: >TARGET previous
1.52      jwilke    783: 
1.77    ! jwilke    784: 0
        !           785: [IFDEF] mach-file mach-file count 1 [THEN]
        !           786: [IFDEF] machine-file machine-file 1 [THEN]
        !           787: [IF]   included hex drop
        !           788: [ELSE]  cr ." No machine description!" ABORT 
        !           789: [THEN]
1.43      pazsan    790: 
1.53      jwilke    791: >ENVIRON
                    792: 
1.54      pazsan    793: T has? ec H
                    794: [IF]
                    795: false DefaultValue relocate
                    796: false DefaultValue file
                    797: false DefaultValue OS
                    798: false DefaultValue prims
                    799: false DefaultValue floating
                    800: false DefaultValue glocals
                    801: false DefaultValue dcomps
                    802: false DefaultValue hash
                    803: false DefaultValue xconds
                    804: false DefaultValue header
                    805: [THEN]
                    806: 
                    807: true DefaultValue interpreter
                    808: true DefaultValue ITC
                    809: false DefaultValue rom
1.73      jwilke    810: true DefaultValue standardthreading
1.53      jwilke    811: 
1.52      jwilke    812: >TARGET
1.53      jwilke    813: s" relocate" T environment? H 
                    814: [IF]   SetValue NIL
                    815: [ELSE] >ENVIRON T NIL H SetValue relocate
                    816: [THEN]
1.43      pazsan    817: 
                    818: >CROSS
                    819: 
1.52      jwilke    820: \ \ Create additional parameters                         19jan95py
1.19      pazsan    821: 
1.71      jwilke    822: \ currently cross only works for host machines with address-unit-bits
                    823: \ eual to 8 because of s! and sc!
                    824: \ but I start to query the environment just to modularize a little bit
                    825: 
                    826: : check-address-unit-bits ( -- )       
                    827: \      s" ADDRESS-UNIT-BITS" environment?
                    828: \      IF 8 <> ELSE true THEN
                    829: \      ABORT" ADDRESS-UNIT-BITS unknown or not equal to 8!"
                    830: 
                    831: \      shit, this doesn't work because environment? is only defined for 
                    832: \      gforth.fi and not kernl???.fi
                    833:        ;
                    834: 
                    835: check-address-unit-bits
                    836: 8 Constant bits/byte   \ we define: byte is address-unit
                    837: 
                    838: 1 bits/byte lshift Constant maxbyte 
1.77    ! jwilke    839: \ this sets byte size for the target machine, (probably right guess) jaw
1.67      jwilke    840: 
1.19      pazsan    841: T
1.71      jwilke    842: NIL                    Constant TNIL
                    843: cell                   Constant tcell
                    844: cell<<                 Constant tcell<<
                    845: cell>bit               Constant tcell>bit
                    846: bits/char              Constant tbits/char
                    847: bits/char H bits/byte T /      
                    848:                        Constant tchar
                    849: float                  Constant tfloat
                    850: 1 bits/char lshift     Constant tmaxchar
                    851: [IFUNDEF] bits/byte
                    852: 8                      Constant tbits/byte
                    853: [ELSE]
                    854: bits/byte              Constant tbits/byte
                    855: [THEN]
1.19      pazsan    856: H
1.71      jwilke    857: tbits/byte bits/byte / Constant tbyte
                    858: 
1.19      pazsan    859: 
1.48      anton     860: \ Variables                                            06oct92py
                    861: 
                    862: Variable image
                    863: Variable tlast    TNIL tlast !  \ Last name field
                    864: Variable tlastcfa \ Last code field
                    865: Variable tdoes    \ Resolve does> calls
                    866: Variable bit$
1.52      jwilke    867: 
                    868: \ statistics                                           10jun97jaw
                    869: 
                    870: Variable headers-named 0 headers-named !
                    871: Variable user-vars 0 user-vars !
                    872: 
1.67      jwilke    873: : target>bitmask-size ( u1 -- u2 )
                    874:   1- tcell>bit rshift 1+ ;
                    875: 
                    876: : allocatetarget ( size --- adr )
                    877:   dup allocate ABORT" CROSS: No memory for target"
                    878:   swap over swap erase ;
1.52      jwilke    879: 
1.54      pazsan    880: \ \ memregion.fs
1.52      jwilke    881: 
                    882: 
                    883: Variable last-defined-region    \ pointer to last defined region
                    884: Variable region-link            \ linked list with all regions
                    885: Variable mirrored-link          \ linked list for mirrored regions
                    886: 0 dup mirrored-link ! region-link !
                    887: 
                    888: 
1.67      jwilke    889: : >rname 6 cells + ;
                    890: : >rbm   5 cells + ;
                    891: : >rmem  4 cells + ;
                    892: : >rlink 3 cells + ;
1.52      jwilke    893: : >rdp 2 cells + ;
                    894: : >rlen cell+ ;
                    895: : >rstart ;
                    896: 
                    897: 
                    898: : region ( addr len -- )                \G create a new region
                    899:   \ check whether predefined region exists 
                    900:   save-input bl word find >r >r restore-input throw r> r> 0= 
                    901:   IF   \ make region
                    902:        drop
                    903:        save-input create restore-input throw
                    904:        here last-defined-region !
                    905:        over ( startaddr ) , ( length ) , ( dp ) ,
1.67      jwilke    906:        region-link linked 0 , 0 , bl word count string,
1.52      jwilke    907:   ELSE \ store new parameters in region
                    908:         bl word drop
                    909:        >body >r r@ last-defined-region !
1.67      jwilke    910:        r@ >rlen ! dup r@ >rstart ! r> >rdp !
1.52      jwilke    911:   THEN ;
                    912: 
                    913: : borders ( region -- startaddr endaddr ) \G returns lower and upper region border
1.67      jwilke    914:   dup >rstart @ swap >rlen @ over + ;
1.52      jwilke    915: 
                    916: : extent  ( region -- startaddr len )   \G returns the really used area
1.67      jwilke    917:   dup >rstart @ swap >rdp @ over - ;
1.52      jwilke    918: 
                    919: : area ( region -- startaddr totallen ) \G returns the total area
1.67      jwilke    920:   dup >rstart swap >rlen @ ;
1.52      jwilke    921: 
                    922: : mirrored                              \G mark a region as mirrored
                    923:   mirrored-link
1.68      jwilke    924:   align linked last-defined-region @ , ;
1.52      jwilke    925: 
1.67      jwilke    926: : .addr ( u -- )
                    927: \G prints a 16 or 32 Bit nice hex value
1.52      jwilke    928:   base @ >r hex
                    929:   tcell 2 u>
1.77    ! jwilke    930:   IF s>d <# # # # # [char] . hold # # # # #> type
1.52      jwilke    931:   ELSE s>d <# # # # # # #> type
                    932:   THEN r> base ! ;
                    933: 
                    934: : .regions                      \G display region statistic
                    935: 
                    936:   \ we want to list the regions in the right order
                    937:   \ so first collect all regions on stack
                    938:   0 region-link @
                    939:   BEGIN dup WHILE dup @ REPEAT drop
                    940:   BEGIN dup
1.67      jwilke    941:   WHILE cr
                    942:         0 >rlink - >r
                    943:         r@ >rname count tuck type
1.52      jwilke    944:         12 swap - 0 max spaces space
1.67      jwilke    945:         ." Start: " r@ >rstart @ dup .addr space
                    946:         ." End: " r@ >rlen @ + .addr space
                    947:         ." DP: " r> >rdp @ .addr
1.52      jwilke    948:   REPEAT drop
1.53      jwilke    949:   s" rom" T $has? H 0= ?EXIT
1.52      jwilke    950:   cr ." Mirrored:"
                    951:   mirrored-link @
                    952:   BEGIN dup
1.67      jwilke    953:   WHILE space dup cell+ @ >rname count type @
1.52      jwilke    954:   REPEAT drop cr
                    955:   ;
                    956: 
                    957: \ -------- predefined regions
                    958: 
                    959: 0 0 region address-space
                    960: \ total memory addressed and used by the target system
                    961: 
                    962: 0 0 region dictionary
                    963: \ rom area for the compiler
                    964: 
1.53      jwilke    965: T has? rom H
1.52      jwilke    966: [IF]
                    967: 0 0 region ram-dictionary mirrored
                    968: \ ram area for the compiler
                    969: [ELSE]
                    970: ' dictionary ALIAS ram-dictionary
                    971: [THEN]
                    972: 
                    973: 0 0 region return-stack
                    974: 
                    975: 0 0 region data-stack
                    976: 
                    977: 0 0 region tib-region
                    978: 
                    979: ' dictionary ALIAS rom-dictionary
                    980: 
                    981: 
                    982: : setup-target ( -- )   \G initialize targets memory space
1.53      jwilke    983:   s" rom" T $has? H
1.52      jwilke    984:   IF  \ check for ram and rom...
1.72      jwilke    985:       \ address-space area nip 0<>
1.67      jwilke    986:       ram-dictionary area nip 0<>
                    987:       rom-dictionary area nip 0<>
1.72      jwilke    988:       and 0=
1.52      jwilke    989:       ABORT" CROSS: define address-space, rom- , ram-dictionary, with rom-support!"
                    990:   THEN
                    991:   address-space area nip
                    992:   IF
                    993:       address-space area
                    994:   ELSE
                    995:       dictionary area
                    996:   THEN
1.67      jwilke    997:   nip 0=
1.52      jwilke    998:   ABORT" CROSS: define at least address-space or dictionary!!"
1.67      jwilke    999: 
                   1000:   \ allocate target for each region
                   1001:   region-link
                   1002:   BEGIN @ dup
                   1003:   WHILE dup
                   1004:         0 >rlink - >r
                   1005:         r@ >rlen @
                   1006:         IF      \ allocate mem
                   1007:                 r@ >rlen @ dup
                   1008: 
                   1009:                 allocatetarget dup image !
                   1010:                 r@ >rmem !
                   1011: 
                   1012:                 target>bitmask-size allocatetarget
1.72      jwilke   1013:                 dup bit$ !
1.67      jwilke   1014:                 r> >rbm !
                   1015: 
                   1016:         ELSE    r> drop THEN
1.72      jwilke   1017:    REPEAT drop ;
                   1018: 
                   1019: \ MakeKernal                                                           22feb99jaw
                   1020: 
                   1021: : makekernel ( targetsize -- targetsize )
                   1022:   dup dictionary >rlen ! setup-target ;
                   1023: 
                   1024: >MINIMAL
                   1025: : makekernel makekernel ;
                   1026: >CROSS
1.52      jwilke   1027: 
1.54      pazsan   1028: \ \ switched tdp for rom support                               03jun97jaw
1.52      jwilke   1029: 
                   1030: \ second value is here to store some maximal value for statistics
                   1031: \ tempdp is also embedded here but has nothing to do with rom support
                   1032: \ (needs switched dp)
                   1033: 
                   1034: variable tempdp        0 ,     \ temporary dp for resolving
                   1035: variable tempdp-save
                   1036: 
                   1037: 0 [IF]
                   1038: variable romdp 0 ,      \ Dictionary-Pointer for ramarea
                   1039: variable ramdp 0 ,      \ Dictionary-Pointer for romarea
                   1040: 
                   1041: \
                   1042: variable sramdp                \ start of ram-area for forth
                   1043: variable sromdp                \ start of rom-area for forth
                   1044: 
                   1045: [THEN]
                   1046: 
                   1047: 
                   1048: 0 value tdp
                   1049: variable fixed         \ flag: true: no automatic switching
                   1050:                        \       false: switching is done automatically
                   1051: 
                   1052: \ Switch-Policy:
                   1053: \
                   1054: \ a header is always compiled into rom
                   1055: \ after a created word (create and variable) compilation goes to ram
                   1056: \
                   1057: \ Be careful: If you want to make the data behind create into rom
                   1058: \ you have to put >rom before create!
                   1059: 
                   1060: variable constflag constflag off
                   1061: 
1.67      jwilke   1062: : activate ( region -- )
                   1063: \G next code goes to this region
                   1064:   >rdp to tdp ;
                   1065: 
1.52      jwilke   1066: : (switchram)
1.53      jwilke   1067:   fixed @ ?EXIT s" rom" T $has? H 0= ?EXIT
1.67      jwilke   1068:   ram-dictionary activate ;
1.52      jwilke   1069: 
                   1070: : switchram
                   1071:   constflag @
                   1072:   IF constflag off ELSE (switchram) THEN ;
                   1073: 
                   1074: : switchrom
1.67      jwilke   1075:   fixed @ ?EXIT rom-dictionary activate ;
1.52      jwilke   1076: 
                   1077: : >tempdp ( addr -- ) 
                   1078:   tdp tempdp-save ! tempdp to tdp tdp ! ;
                   1079: : tempdp> ( -- )
                   1080:   tempdp-save @ to tdp ;
                   1081: 
                   1082: : >ram  fixed off (switchram) fixed on ;
                   1083: : >rom  fixed off switchrom fixed on ;
                   1084: : >auto fixed off switchrom ;
                   1085: 
                   1086: 
                   1087: 
                   1088: \ : romstart dup sromdp ! romdp ! ;
                   1089: \ : ramstart dup sramdp ! ramdp ! ;
                   1090: 
1.67      jwilke   1091: \ default compilation goes to rom
1.52      jwilke   1092: \ when romable support is off, only the rom switch is used (!!)
                   1093: >auto
                   1094: 
1.48      anton    1095: : there  tdp @ ;
                   1096: 
1.52      jwilke   1097: >TARGET
1.48      anton    1098: 
1.52      jwilke   1099: \ \ Target Memory Handling
1.1       anton    1100: 
                   1101: \ Byte ordering and cell size                          06oct92py
                   1102: 
1.19      pazsan   1103: : cell+         tcell + ;
                   1104: : cells         tcell<< lshift ;
1.71      jwilke   1105: : chars         tchar * ;
                   1106: : char+                tchar + ;
1.19      pazsan   1107: : floats       tfloat * ;
1.6       anton    1108:     
1.1       anton    1109: >CROSS
1.19      pazsan   1110: : cell/         tcell<< rshift ;
1.1       anton    1111: >TARGET
                   1112: 20 CONSTANT bl
1.52      jwilke   1113: \ TNIL Constant NIL
1.1       anton    1114: 
                   1115: >CROSS
                   1116: 
1.20      pazsan   1117: bigendian
                   1118: [IF]
1.52      jwilke   1119:    : S!  ( n addr -- )  >r s>d r> tcell bounds swap 1-
1.20      pazsan   1120:      DO  maxbyte ud/mod rot I c!  -1 +LOOP  2drop ;
1.52      jwilke   1121:    : S@  ( addr -- n )  >r 0 0 r> tcell bounds
1.20      pazsan   1122:      DO  maxbyte * swap maxbyte um* rot + swap I c@ + swap  LOOP d>s ;
1.57      pazsan   1123:    : Sc!  ( n addr -- )  >r s>d r> tchar bounds swap 1-
                   1124:      DO  maxbyte ud/mod rot I c!  -1 +LOOP  2drop ;
                   1125:    : Sc@  ( addr -- n )  >r 0 0 r> tchar bounds
                   1126:      DO  maxbyte * swap maxbyte um* rot + swap I c@ + swap  LOOP d>s ;
1.19      pazsan   1127: [ELSE]
1.52      jwilke   1128:    : S!  ( n addr -- )  >r s>d r> tcell bounds
1.20      pazsan   1129:      DO  maxbyte ud/mod rot I c!  LOOP  2drop ;
1.52      jwilke   1130:    : S@  ( addr -- n )  >r 0 0 r> tcell bounds swap 1-
1.20      pazsan   1131:      DO  maxbyte * swap maxbyte um* rot + swap I c@ + swap  -1 +LOOP d>s ;
1.57      pazsan   1132:    : Sc!  ( n addr -- )  >r s>d r> tchar bounds
                   1133:      DO  maxbyte ud/mod rot I c!  LOOP  2drop ;
                   1134:    : Sc@  ( addr -- n )  >r 0 0 r> tchar bounds swap 1-
                   1135:      DO  maxbyte * swap maxbyte um* rot + swap I c@ + swap  -1 +LOOP d>s ;
1.1       anton    1136: [THEN]
                   1137: 
1.67      jwilke   1138: : taddr>region ( taddr -- region | 0 )
                   1139: \G finds for a target-address the correct region
                   1140: \G returns 0 if taddr is not in range of a target memory region
                   1141:   region-link
                   1142:   BEGIN @ dup
                   1143:   WHILE dup >r
                   1144:         0 >rlink - >r
                   1145:         r@ >rlen @
                   1146:         IF      dup r@ borders within
                   1147:                 IF r> r> drop nip EXIT THEN
                   1148:         THEN
                   1149:         r> drop
                   1150:         r>
                   1151:   REPEAT
                   1152:   2drop 0 ;
                   1153: 
                   1154: : (>regionimage) ( taddr -- 'taddr )
                   1155:   dup
                   1156:   \ find region we want to address
                   1157:   taddr>region dup 0= ABORT" Address out of range!"
                   1158:   >r
                   1159:   \ calculate offset in region
                   1160:   r@ >rstart @ -
                   1161:   \ add regions real address in our memory
                   1162:   r> >rmem @ + ;
                   1163: 
1.1       anton    1164: \ Bit string manipulation                               06oct92py
                   1165: \                                                       9may93jaw
                   1166: CREATE Bittable 80 c, 40 c, 20 c, 10 c, 8 c, 4 c, 2 c, 1 c,
                   1167: : bits ( n -- n ) chars Bittable + c@ ;
                   1168: 
                   1169: : >bit ( addr n -- c-addr mask ) 8 /mod rot + swap bits ;
                   1170: : +bit ( addr n -- )  >bit over c@ or swap c! ;
1.4       pazsan   1171: : -bit ( addr n -- )  >bit invert over c@ and swap c! ;
1.67      jwilke   1172: 
                   1173: : (relon) ( taddr -- )  bit$ @ swap cell/ +bit ;
                   1174: : (reloff) ( taddr -- ) bit$ @ swap cell/ -bit ;
                   1175: 
                   1176: : (>image) ( taddr -- absaddr ) image @ + ;
                   1177: 
                   1178: DEFER >image
                   1179: DEFER relon
                   1180: DEFER reloff
                   1181: DEFER correcter
                   1182: 
                   1183: T has? relocate H
                   1184: [IF]
                   1185: ' (relon) IS relon
                   1186: ' (reloff) IS reloff
                   1187: ' (>image) IS >image
                   1188: [ELSE]
                   1189: ' drop IS relon
                   1190: ' drop IS reloff
1.68      jwilke   1191: ' (>regionimage) IS >image
1.67      jwilke   1192: [THEN]
1.1       anton    1193: 
                   1194: \ Target memory access                                 06oct92py
                   1195: 
                   1196: : align+  ( taddr -- rest )
1.48      anton    1197:     tcell tuck 1- and - [ tcell 1- ] Literal and ;
1.22      anton    1198: : cfalign+  ( taddr -- rest )
1.39      pazsan   1199:     \ see kernel.fs:cfaligned
1.43      pazsan   1200:     /maxalign tuck 1- and - [ /maxalign 1- ] Literal and ;
1.1       anton    1201: 
                   1202: >TARGET
                   1203: : aligned ( taddr -- ta-addr )  dup align+ + ;
                   1204: \ assumes cell alignment granularity (as GNU C)
                   1205: 
1.22      anton    1206: : cfaligned ( taddr1 -- taddr2 )
1.39      pazsan   1207:     \ see kernel.fs
1.22      anton    1208:     dup cfalign+ + ;
                   1209: 
1.52      jwilke   1210: : @  ( taddr -- w )     >image S@ ;
                   1211: : !  ( w taddr -- )     >image S! ;
1.57      pazsan   1212: : c@ ( taddr -- char )  >image Sc@ ;
                   1213: : c! ( char taddr -- )  >image Sc! ;
1.7       anton    1214: : 2@ ( taddr -- x1 x2 ) T dup cell+ @ swap @ H ;
                   1215: : 2! ( x1 x2 taddr -- ) T swap over ! cell+ ! H ;
1.1       anton    1216: 
                   1217: \ Target compilation primitives                        06oct92py
                   1218: \ included A!                                          16may93jaw
                   1219: 
                   1220: : here  ( -- there )    there ;
                   1221: : allot ( n -- )        tdp +! ;
1.52      jwilke   1222: : ,     ( w -- )        T here H tcell T allot  ! H T here drop H ;
1.57      pazsan   1223: : c,    ( char -- )     T here    tchar allot c! H ;
1.67      jwilke   1224: : align ( -- )          T here H align+ 0 ?DO  bl T c, tchar H +LOOP ;
1.22      anton    1225: : cfalign ( -- )
1.59      pazsan   1226:     T here H cfalign+ 0 ?DO  bl T c, tchar H +LOOP ;
1.1       anton    1227: 
1.71      jwilke   1228: : >address             dup 0>= IF tbyte / THEN ; \ ?? jaw 
1.59      pazsan   1229: : A!                    swap >address swap dup relon T ! H ;
                   1230: : A,    ( w -- )        >address T here H relon T , H ;
1.1       anton    1231: 
                   1232: >CROSS
                   1233: 
1.52      jwilke   1234: : tcmove ( source dest len -- )
                   1235: \G cmove in target memory
1.57      pazsan   1236:   tchar * bounds
1.52      jwilke   1237:   ?DO  dup T c@ H I T c! H 1+
1.57      pazsan   1238:   tchar +LOOP  drop ;
1.1       anton    1239: 
1.67      jwilke   1240: \ \ Load Assembler
                   1241: 
1.1       anton    1242: >TARGET
1.74      jwilke   1243: H also Forth definitions
1.1       anton    1244: 
1.77    ! jwilke   1245: : X    bl word count [ ' target >wordlist ] Literal search-wordlist
1.52      jwilke   1246:        IF      state @ IF compile,
                   1247:                ELSE execute THEN
1.77    ! jwilke   1248:        ELSE    -1 ABORT" Cross: access method not supported!"
        !          1249:        THEN ; immediate
1.1       anton    1250: 
1.52      jwilke   1251: [IFDEF] asm-include asm-include [THEN] hex
1.1       anton    1252: 
1.52      jwilke   1253: previous
                   1254: >CROSS H
1.1       anton    1255: 
1.52      jwilke   1256: \ \ --------------------        Compiler Plug Ins               01aug97jaw
1.1       anton    1257: 
1.54      pazsan   1258: \  Compiler States
                   1259: 
                   1260: Variable comp-state
                   1261: 0 Constant interpreting
                   1262: 1 Constant compiling
                   1263: 2 Constant resolving
                   1264: 3 Constant assembling
                   1265: 
1.52      jwilke   1266: Defer lit, ( n -- )
                   1267: Defer alit, ( n -- )
1.54      pazsan   1268: 
                   1269: Defer branch, ( target-addr -- )       \ compiles a branch
                   1270: Defer ?branch, ( target-addr -- )      \ compiles a ?branch
                   1271: Defer branchmark, ( -- branch-addr )   \ reserves room for a branch
                   1272: Defer ?branchmark, ( -- branch-addr )  \ reserves room for a ?branch
                   1273: Defer ?domark, ( -- branch-addr )      \ reserves room for a ?do branch
                   1274: Defer branchto, ( -- )                 \ actual program position is target of a branch (do e.g. alignment)
                   1275: Defer branchtoresolve, ( branch-addr -- ) \ resolves a forward reference from branchmark
                   1276: Defer branchfrom, ( -- )               \ ?!
                   1277: Defer branchtomark, ( -- target-addr ) \ marks a branch destination
                   1278: 
1.52      jwilke   1279: Defer colon, ( tcfa -- )               \ compiles call to tcfa at current position
1.54      pazsan   1280: Defer colonmark, ( -- addr )           \ marks a colon call
1.52      jwilke   1281: Defer colon-resolve ( tcfa addr -- )
1.54      pazsan   1282: 
1.52      jwilke   1283: Defer addr-resolve ( target-addr addr -- )
1.54      pazsan   1284: Defer doer-resolve ( ghost res-pnt target-addr addr -- ghost res-pnt )
                   1285: 
                   1286: Defer do,      ( -- do-token )
                   1287: Defer ?do,     ( -- ?do-token )
                   1288: Defer for,     ( -- for-token )
                   1289: Defer loop,    ( do-token / ?do-token -- )
                   1290: Defer +loop,   ( do-token / ?do-token -- )
                   1291: Defer next,    ( for-token )
1.1       anton    1292: 
1.52      jwilke   1293: [IFUNDEF] ca>native
                   1294: defer ca>native        
                   1295: [THEN]
1.1       anton    1296: 
1.52      jwilke   1297: >TARGET
                   1298: DEFER >body             \ we need the system >body
                   1299:                        \ and the target >body
                   1300: >CROSS
                   1301: T 2 cells H VALUE xt>body
1.54      pazsan   1302: DEFER doprim,  \ compiles start of a primitive
                   1303: DEFER docol,           \ compiles start of a colon definition
1.52      jwilke   1304: DEFER doer,            
                   1305: DEFER fini,      \ compiles end of definition ;s
                   1306: DEFER doeshandler,
                   1307: DEFER dodoes,
                   1308: 
                   1309: DEFER ]comp     \ starts compilation
                   1310: DEFER comp[     \ ends compilation
                   1311: 
1.54      pazsan   1312: : (cc) T a, H ;                                        ' (cc) IS colon,
                   1313: 
                   1314: : (cr) >tempdp ]comp colon, comp[ tempdp> ;    ' (cr) IS colon-resolve
                   1315: : (ar) T ! H ;                                 ' (ar) IS addr-resolve
                   1316: : (dr)  ( ghost res-pnt target-addr addr )
                   1317:        >tempdp drop over 
                   1318:        dup >magic @ <do:> =
                   1319:        IF      doer,
                   1320:        ELSE    dodoes,
                   1321:        THEN 
                   1322:        tempdp> ;                               ' (dr) IS doer-resolve
                   1323: 
                   1324: : (cm) ( -- addr )
                   1325:     T here align H
                   1326:     -1 colon, ;                                        ' (cm) IS colonmark,
1.1       anton    1327: 
1.52      jwilke   1328: >TARGET
                   1329: : compile, colon, ;
                   1330: >CROSS
1.1       anton    1331: 
1.52      jwilke   1332: \ resolve structure
1.1       anton    1333: 
1.52      jwilke   1334: : >next ;              \ link to next field
1.54      pazsan   1335: : >tag cell+ ;         \ indecates type of reference: 0: call, 1: address, 2: doer
1.53      jwilke   1336: : >taddr cell+ cell+ ; 
1.52      jwilke   1337: : >ghost 3 cells + ;
1.53      jwilke   1338: : >file 4 cells + ;
                   1339: : >line 5 cells + ;
1.48      anton    1340: 
1.54      pazsan   1341: : (refered) ( ghost addr tag -- )
                   1342: \G creates a reference to ghost at address taddr
                   1343:     rot >r here r@ >link @ , r> >link ! 
                   1344:     ( taddr tag ) ,
                   1345:     ( taddr ) , 
                   1346:     last-header-ghost @ , 
                   1347:     loadfile , 
                   1348:     sourceline# , 
                   1349:   ;
                   1350: 
1.52      jwilke   1351: : refered ( ghost tag -- )
1.53      jwilke   1352: \G creates a resolve structure
1.54      pazsan   1353:     T here aligned H swap (refered)
                   1354:   ;
                   1355: 
                   1356: : killref ( addr ghost -- )
                   1357: \G kills a forward reference to ghost at position addr
                   1358: \G this is used to eleminate a :dovar refence after making a DOES>
                   1359:     dup >magic @ <fwd> <> IF 2drop EXIT THEN
                   1360:     swap >r >link
                   1361:     BEGIN dup @ dup  ( addr last this )
                   1362:     WHILE dup >taddr @ r@ =
                   1363:         IF   @ over !
                   1364:         ELSE nip THEN
                   1365:     REPEAT rdrop 2drop 
1.53      jwilke   1366:   ;
1.48      anton    1367: 
1.52      jwilke   1368: Defer resolve-warning
1.1       anton    1369: 
1.52      jwilke   1370: : reswarn-test ( ghost res-struct -- ghost res-struct )
                   1371:   over cr ." Resolving " >ghostname type dup ."  in " >ghost @ >ghostname type ;
1.1       anton    1372: 
1.52      jwilke   1373: : reswarn-forward ( ghost res-struct -- ghost res-struct )
                   1374:   over warnhead >ghostname type dup ."  is referenced in " 
                   1375:   >ghost @ >ghostname type ;
1.1       anton    1376: 
1.52      jwilke   1377: \ ' reswarn-test IS resolve-warning
                   1378:  
1.1       anton    1379: \ resolve                                              14oct92py
                   1380: 
1.54      pazsan   1381:  : resolve-loop ( ghost resolve-list tcfa -- )
                   1382:     >r
                   1383:     BEGIN dup WHILE 
                   1384: \        dup >tag @ 2 = IF reswarn-forward THEN
                   1385:          resolve-warning 
                   1386:          r@ over >taddr @ 
                   1387:          2 pick >tag @
                   1388:          CASE  0 OF colon-resolve ENDOF
                   1389:                1 OF addr-resolve ENDOF
                   1390:                2 OF doer-resolve ENDOF
                   1391:          ENDCASE
                   1392:          @ \ next list element
                   1393:     REPEAT 2drop rdrop 
                   1394:   ;
1.52      jwilke   1395: 
                   1396: \ : resolve-loop ( ghost tcfa -- ghost tcfa )
                   1397: \  >r dup >link @
                   1398: \  BEGIN  dup  WHILE  dup T @ H r@ rot T ! H REPEAT  drop r> ;
1.1       anton    1399: 
                   1400: \ exists                                                9may93jaw
                   1401: 
1.52      jwilke   1402: Variable TWarnings
                   1403: TWarnings on
                   1404: Variable Exists-Warnings
                   1405: Exists-Warnings on
                   1406: 
1.1       anton    1407: : exists ( ghost tcfa -- )
                   1408:   over GhostNames
                   1409:   BEGIN @ dup
                   1410:   WHILE 2dup cell+ @ =
                   1411:   UNTIL
1.52      jwilke   1412:         2 cells + count
                   1413:         TWarnings @ Exists-Warnings @ and
                   1414:         IF warnhead type ."  exists"
                   1415:         ELSE 2drop THEN
                   1416:         drop swap >link !
1.24      pazsan   1417:   ELSE  true abort" CROSS: Ghostnames inconsistent "
1.1       anton    1418:   THEN ;
                   1419: 
                   1420: : resolve  ( ghost tcfa -- )
1.54      pazsan   1421: \G resolve referencies to ghost with tcfa
                   1422:     \ is ghost resolved?, second resolve means another definition with the
                   1423:     \ same name
1.75      jwilke   1424:     over undefined? 0= IF  exists EXIT THEN
1.54      pazsan   1425:     \ get linked-list
                   1426:     swap >r r@ >link @ swap \ ( list tcfa R: ghost )
                   1427:     \ mark ghost as resolved
                   1428:     dup r@ >link ! <res> r@ >magic !
                   1429:     \ loop through forward referencies
                   1430:     r> -rot 
                   1431:     comp-state @ >r Resolving comp-state !
                   1432:     resolve-loop 
                   1433:     r> comp-state !
                   1434: 
                   1435:     ['] noop IS resolve-warning 
1.52      jwilke   1436:   ;
1.1       anton    1437: 
                   1438: \ gexecute ghost,                                      01nov92py
                   1439: 
1.52      jwilke   1440: : is-forward   ( ghost -- )
1.54      pazsan   1441:   colonmark, 0 (refered) ; \ compile space for call
1.52      jwilke   1442: 
                   1443: : is-resolved   ( ghost -- )
                   1444:   >link @ colon, ; \ compile-call
                   1445: 
                   1446: : gexecute   ( ghost -- )
                   1447:   dup @ <fwd> = IF  is-forward  ELSE  is-resolved  THEN ;
                   1448: 
                   1449: : addr,  ( ghost -- )
                   1450:   dup @ <fwd> = IF  1 refered 0 T a, H ELSE >link @ T a, H THEN ;
                   1451: 
                   1452: \ !! : ghost,     ghost  gexecute ;
1.1       anton    1453: 
                   1454: \ .unresolved                                          11may93jaw
                   1455: 
                   1456: variable ResolveFlag
                   1457: 
                   1458: \ ?touched                                             11may93jaw
                   1459: 
1.52      jwilke   1460: : ?touched ( ghost -- flag ) dup forward? swap >link @
1.1       anton    1461:                                0 <> and ;
                   1462: 
1.53      jwilke   1463: : .forwarddefs ( ghost -- )
                   1464:        ."  appeared in:"
                   1465:        >link
                   1466:        BEGIN   @ dup
                   1467:        WHILE   cr 5 spaces
                   1468:                dup >ghost @ >ghostname type
                   1469:                ."  file " dup >file @ ?dup IF count type ELSE ." CON" THEN
                   1470:                ."  line " dup >line @ .dec
                   1471:        REPEAT 
                   1472:        drop ;
                   1473: 
1.1       anton    1474: : ?resolved  ( ghostname -- )
                   1475:   dup cell+ @ ?touched
1.53      jwilke   1476:   IF   dup 
                   1477:        cell+ cell+ count cr type ResolveFlag on 
                   1478:        cell+ @ .forwarddefs
                   1479:   ELSE         drop 
                   1480:   THEN ;
1.1       anton    1481: 
                   1482: >MINIMAL
                   1483: : .unresolved  ( -- )
                   1484:   ResolveFlag off cr ." Unresolved: "
                   1485:   Ghostnames
                   1486:   BEGIN @ dup
                   1487:   WHILE dup ?resolved
1.10      anton    1488:   REPEAT drop ResolveFlag @
                   1489:   IF
1.48      anton    1490:       -1 abort" Unresolved words!"
1.10      anton    1491:   ELSE
                   1492:       ." Nothing!"
                   1493:   THEN
                   1494:   cr ;
1.1       anton    1495: 
1.52      jwilke   1496: : .stats
                   1497:   base @ >r decimal
                   1498:   cr ." named Headers: " headers-named @ . 
                   1499:   r> base ! ;
                   1500: 
1.1       anton    1501: >CROSS
                   1502: \ Header states                                        12dec92py
                   1503: 
                   1504: : flag! ( 8b -- )   tlast @ dup >r T c@ xor r> c! H ;
                   1505: 
                   1506: VARIABLE ^imm
                   1507: 
                   1508: >TARGET
1.36      anton    1509: : immediate     40 flag!
1.18      pazsan   1510:                 ^imm @ @ dup <imm> = IF  drop  EXIT  THEN
1.1       anton    1511:                 <res> <> ABORT" CROSS: Cannot immediate a unresolved word"
                   1512:                 <imm> ^imm @ ! ;
1.36      anton    1513: : restrict      20 flag! ;
1.52      jwilke   1514: 
1.54      pazsan   1515: : isdoer       
                   1516: \G define a forth word as doer, this makes obviously only sence on
                   1517: \G forth processors such as the PSC1000
                   1518:                <do:> last-header-ghost @ >magic ! ;
1.1       anton    1519: >CROSS
                   1520: 
                   1521: \ ALIAS2 ansforth conform alias                          9may93jaw
                   1522: 
                   1523: : ALIAS2 create here 0 , DOES> @ execute ;
                   1524: \ usage:
1.18      pazsan   1525: \ ' <name> alias2 bla !
1.1       anton    1526: 
                   1527: \ Target Header Creation                               01nov92py
                   1528: 
1.52      jwilke   1529: >TARGET
1.1       anton    1530: : string,  ( addr count -- )
1.28      pazsan   1531:   dup T c, H bounds  ?DO  I c@ T c, H  LOOP ; 
1.52      jwilke   1532: : name,  ( "name" -- )  bl word count T string, cfalign H ;
1.1       anton    1533: : view,   ( -- ) ( dummy ) ;
1.52      jwilke   1534: >CROSS
1.1       anton    1535: 
1.25      pazsan   1536: \ Target Document Creation (goes to crossdoc.fd)       05jul95py
                   1537: 
1.55      pazsan   1538: s" ./doc/crossdoc.fd" r/w create-file throw value doc-file-id
1.25      pazsan   1539: \ contains the file-id of the documentation file
                   1540: 
1.40      pazsan   1541: : T-\G ( -- )
1.25      pazsan   1542:     source >in @ /string doc-file-id write-line throw
1.40      pazsan   1543:     postpone \ ;
1.25      pazsan   1544: 
1.39      pazsan   1545: Variable to-doc  to-doc on
1.25      pazsan   1546: 
                   1547: : cross-doc-entry  ( -- )
                   1548:     to-doc @ tlast @ 0<> and   \ not an anonymous (i.e. noname) header
                   1549:     IF
                   1550:        s" " doc-file-id write-line throw
                   1551:        s" make-doc " doc-file-id write-file throw
1.77    ! jwilke   1552: 
        !          1553:        tlast @ >image count 1F and doc-file-id write-file throw
1.25      pazsan   1554:        >in @
                   1555:        [char] ( parse 2drop
                   1556:        [char] ) parse doc-file-id write-file throw
                   1557:        s"  )" doc-file-id write-file throw
                   1558:        [char] \ parse 2drop                                    
1.40      pazsan   1559:        T-\G
1.25      pazsan   1560:        >in !
1.39      pazsan   1561:     THEN ;
1.25      pazsan   1562: 
1.28      pazsan   1563: \ Target TAGS creation
                   1564: 
1.39      pazsan   1565: s" kernel.TAGS" r/w create-file throw value tag-file-id
1.28      pazsan   1566: \ contains the file-id of the tags file
                   1567: 
                   1568: Create tag-beg 2 c,  7F c, bl c,
                   1569: Create tag-end 2 c,  bl c, 01 c,
                   1570: Create tag-bof 1 c,  0C c,
                   1571: 
                   1572: 2variable last-loadfilename 0 0 last-loadfilename 2!
                   1573:            
                   1574: : put-load-file-name ( -- )
1.77    ! jwilke   1575:     sourcefilename last-loadfilename 2@ d<>
1.28      pazsan   1576:     IF
                   1577:        tag-bof count tag-file-id write-line throw
1.31      anton    1578:        sourcefilename 2dup
1.28      pazsan   1579:        tag-file-id write-file throw
                   1580:        last-loadfilename 2!
                   1581:        s" ,0" tag-file-id write-line throw
                   1582:     THEN ;
                   1583: 
                   1584: : cross-tag-entry  ( -- )
                   1585:     tlast @ 0<>        \ not an anonymous (i.e. noname) header
                   1586:     IF
                   1587:        put-load-file-name
                   1588:        source >in @ min tag-file-id write-file throw
                   1589:        tag-beg count tag-file-id write-file throw
1.77    ! jwilke   1590:        tlast @ >image count 1F and tag-file-id write-file throw
1.28      pazsan   1591:        tag-end count tag-file-id write-file throw
1.31      anton    1592:        base @ decimal sourceline# 0 <# #s #> tag-file-id write-file throw
1.28      pazsan   1593: \      >in @ 0 <# #s [char] , hold #> tag-file-id write-line throw
                   1594:        s" ,0" tag-file-id write-line throw
                   1595:        base !
                   1596:     THEN ;
                   1597: 
1.43      pazsan   1598: \ Check for words
                   1599: 
                   1600: Defer skip? ' false IS skip?
                   1601: 
1.75      jwilke   1602: : skipdef ( <name> -- )
                   1603: \G skip definition of an undefined word in undef-words mode
                   1604:     ghost dup forward?
                   1605:     IF  >magic <skip> swap !
                   1606:     ELSE drop THEN ;
                   1607: 
1.77    ! jwilke   1608: : tdefined? ( -- flag ) \ name
1.75      jwilke   1609:     ghost undefined? 0= ;
                   1610: 
                   1611: : defined2? ( -- flag ) \ name
                   1612: \G return true for anything else than forward, even for <skip>
                   1613: \G that's what we want
1.52      jwilke   1614:     ghost forward? 0= ;
1.43      pazsan   1615: 
                   1616: : needed? ( -- flag ) \ name
1.48      anton    1617: \G returns a false flag when
                   1618: \G a word is not defined
                   1619: \G a forward reference exists
                   1620: \G so the definition is not skipped!
                   1621:     bl word gfind
1.75      jwilke   1622:     IF dup undefined?
1.48      anton    1623:        nip
                   1624:        0=
                   1625:     ELSE  drop true  THEN ;
1.43      pazsan   1626: 
1.44      pazsan   1627: : doer? ( -- flag ) \ name
                   1628:     ghost >magic @ <do:> = ;
                   1629: 
1.43      pazsan   1630: : skip-defs ( -- )
                   1631:     BEGIN  refill  WHILE  source -trailing nip 0= UNTIL  THEN ;
                   1632: 
1.28      pazsan   1633: \ Target header creation
                   1634: 
1.54      pazsan   1635: Variable CreateFlag
                   1636: CreateFlag off
1.52      jwilke   1637: 
1.54      pazsan   1638: Variable NoHeaderFlag
                   1639: NoHeaderFlag off
1.1       anton    1640: 
1.54      pazsan   1641: : 0.r ( n1 n2 -- ) 
                   1642:     base @ >r hex 
                   1643:     0 swap <# 0 ?DO # LOOP #> type 
                   1644:     r> base ! ;
1.52      jwilke   1645: : .sym
                   1646:   bounds 
                   1647:   DO I c@ dup
1.77    ! jwilke   1648:        CASE    [char] / OF drop ." \/" ENDOF
        !          1649:                [char] \ OF drop ." \\" ENDOF
1.52      jwilke   1650:                dup OF emit ENDOF
                   1651:        ENDCASE
1.54      pazsan   1652:     LOOP ;
1.52      jwilke   1653: 
1.43      pazsan   1654: : (Theader ( "name" -- ghost )
1.54      pazsan   1655:     \  >in @ bl word count type 2 spaces >in !
                   1656:     \ wordheaders will always be compiled to rom
                   1657:     switchrom
                   1658:     \ build header in target
                   1659:     NoHeaderFlag @
                   1660:     IF  NoHeaderFlag off
                   1661:     ELSE
                   1662:        T align H view,
1.59      pazsan   1663:        tlast @ dup 0> IF  T 1 cells - H THEN T A, H  there tlast !
1.54      pazsan   1664:        1 headers-named +!      \ Statistic
                   1665:        >in @ T name, H >in !
                   1666:     THEN
                   1667:     T cfalign here H tlastcfa !
                   1668:     \ Symbol table
                   1669: \    >in @ cr ." sym:s/CFA=" there 4 0.r ." /"  bl word count .sym ." /g" cr >in !
                   1670:     CreateFlag @
1.76      jwilke   1671:     IF \ for a created word we need also a definition in target
                   1672:        \ to execute the created word while compile time
                   1673:        \ dont mind if a alias is defined twice
                   1674:        Warnings @ >r Warnings off
1.54      pazsan   1675:        >in @ alias2 swap >in !         \ create alias in target
1.76      jwilke   1676:        r> Warnings !
1.54      pazsan   1677:        >in @ ghost swap >in !
                   1678:        swap also ghosts ' previous swap !     \ tick ghost and store in alias
                   1679:        CreateFlag off
                   1680:     ELSE ghost
                   1681:     THEN
                   1682:     dup Last-Header-Ghost !
                   1683:     dup >magic ^imm !     \ a pointer for immediate
                   1684:     Already @
                   1685:     IF  dup >end tdoes !
                   1686:     ELSE 0 tdoes !
                   1687:     THEN
                   1688:     80 flag!
                   1689:     cross-doc-entry cross-tag-entry ;
1.1       anton    1690: 
                   1691: VARIABLE ;Resolve 1 cells allot
1.52      jwilke   1692: \ this is the resolver information from ":"
                   1693: \ resolving is done by ";"
1.1       anton    1694: 
1.11      pazsan   1695: : Theader  ( "name" -- ghost )
                   1696:   (THeader dup there resolve 0 ;Resolve ! ;
1.1       anton    1697: 
                   1698: >TARGET
                   1699: : Alias    ( cfa -- ) \ name
1.43      pazsan   1700:     >in @ skip? IF  2drop  EXIT  THEN  >in !
1.53      jwilke   1701:     dup 0< s" prims" T $has? H 0= and
1.43      pazsan   1702:     IF
1.53      jwilke   1703:        .sourcepos ." needs prim: " >in @ bl word count type >in ! cr
1.43      pazsan   1704:     THEN
                   1705:     (THeader over resolve T A, H 80 flag! ;
1.42      pazsan   1706: : Alias:   ( cfa -- ) \ name
1.43      pazsan   1707:     >in @ skip? IF  2drop  EXIT  THEN  >in !
1.53      jwilke   1708:     dup 0< s" prims" T $has? H 0= and
1.43      pazsan   1709:     IF
1.53      jwilke   1710:        .sourcepos ." needs doer: " >in @ bl word count type >in ! cr
1.43      pazsan   1711:     THEN
                   1712:     ghost tuck swap resolve <do:> swap >magic ! ;
1.64      pazsan   1713: 
                   1714: Variable prim#
                   1715: : first-primitive ( n -- )  prim# ! ;
                   1716: : Primitive  ( -- ) \ name
                   1717:     prim# @ T Alias H  -1 prim# +! ;
1.1       anton    1718: >CROSS
                   1719: 
                   1720: \ Conditionals and Comments                            11may93jaw
                   1721: 
                   1722: : ;Cond
                   1723:   postpone ;
                   1724:   swap ! ;  immediate
                   1725: 
                   1726: : Cond: ( -- ) \ name {code } ;
                   1727:   atonce on
                   1728:   ghost
                   1729:   >exec
                   1730:   :NONAME ;
                   1731: 
                   1732: : restrict? ( -- )
                   1733: \ aborts on interprete state - ae
                   1734:   state @ 0= ABORT" CROSS: Restricted" ;
                   1735: 
                   1736: : Comment ( -- )
                   1737:   >in @ atonce on ghost swap >in ! ' swap >exec ! ;
                   1738: 
                   1739: Comment (       Comment \
                   1740: 
                   1741: \ compile                                              10may93jaw
                   1742: 
                   1743: : compile  ( -- ) \ name
                   1744:   restrict?
1.13      pazsan   1745:   bl word gfind dup 0= ABORT" CROSS: Can't compile "
1.1       anton    1746:   0> ( immediate? )
                   1747:   IF    >exec @ compile,
                   1748:   ELSE  postpone literal postpone gexecute  THEN ;
                   1749:                                         immediate
                   1750: 
1.52      jwilke   1751: : [G'] 
                   1752: \G ticks a ghost and returns its address
                   1753:   bl word gfind 0= ABORT" CROSS: Ghost don't exists"
                   1754:   state @
                   1755:   IF   postpone literal
                   1756:   THEN ; immediate
                   1757: 
                   1758: : ghost>cfa
1.75      jwilke   1759:   dup undefined? ABORT" CROSS: forward " >link @ ;
1.52      jwilke   1760:                
                   1761: >TARGET
                   1762: 
                   1763: : '  ( -- cfa ) 
                   1764: \ returns the target-cfa of a ghost
                   1765:   bl word gfind 0= ABORT" CROSS: Ghost don't exists"
                   1766:   ghost>cfa ;
                   1767: 
                   1768: Cond: [']  T ' H alit, ;Cond
                   1769: 
                   1770: >CROSS
                   1771: 
                   1772: : [T']
                   1773: \ returns the target-cfa of a ghost, or compiles it as literal
                   1774:   postpone [G'] state @ IF postpone ghost>cfa ELSE ghost>cfa THEN ; immediate
1.42      pazsan   1775: 
1.52      jwilke   1776: \ \ threading modell                                   13dec92py
                   1777: \ modularized                                          14jun97jaw
                   1778: 
                   1779: : fillcfa   ( usedcells -- )
1.59      pazsan   1780:   T cells H xt>body swap - 0 ?DO 0 T c, tchar H +LOOP ;
1.52      jwilke   1781: 
                   1782: : (>body)   ( cfa -- pfa ) xt>body + ;         ' (>body) T IS >body H
                   1783: 
                   1784: : (doer,)   ( ghost -- ) ]comp gexecute comp[ 1 fillcfa ;   ' (doer,) IS doer,
                   1785: 
                   1786: : (docol,)  ( -- ) [G'] :docol doer, ;         ' (docol,) IS docol,
                   1787: 
                   1788: : (doprim,) ( -- )
                   1789:   there xt>body + ca>native T a, H 1 fillcfa ; ' (doprim,) IS doprim,
                   1790: 
                   1791: : (doeshandler,) ( -- ) 
                   1792:   T cfalign H compile :doesjump T 0 , H ;      ' (doeshandler,) IS doeshandler,
                   1793: 
                   1794: : (dodoes,) ( does-action-ghost -- )
                   1795:   ]comp [G'] :dodoes gexecute comp[
                   1796:   addr,
                   1797:   T here H tcell - reloff 2 fillcfa ;          ' (dodoes,) IS dodoes,
                   1798: 
                   1799: : (lit,) ( n -- )   compile lit T  ,  H ;      ' (lit,) IS lit,
                   1800: 
1.67      jwilke   1801: \ if we dont produce relocatable code alit, defaults to lit, jaw
                   1802: has? relocate
                   1803: [IF]
1.66      pazsan   1804: : (alit,) ( n -- )  compile lit T  a, H ;      ' (alit,) IS alit,
1.67      jwilke   1805: [ELSE]
                   1806: : (alit,) ( n -- )  lit, ;                     ' (alit,) IS alit,
                   1807: [THEN]
1.52      jwilke   1808: 
                   1809: : (fini,)         compile ;s ;                ' (fini,) IS fini,
1.42      pazsan   1810: 
1.43      pazsan   1811: [IFUNDEF] (code) 
                   1812: Defer (code)
                   1813: Defer (end-code)
                   1814: [THEN]
                   1815: 
1.1       anton    1816: >TARGET
1.43      pazsan   1817: : Code
1.52      jwilke   1818:   defempty?
1.48      anton    1819:   (THeader there resolve
1.53      jwilke   1820:   [ T e? prims H 0= [IF] T e? ITC H [ELSE] true [THEN] ] [IF]
1.52      jwilke   1821:   doprim, 
1.48      anton    1822:   [THEN]
                   1823:   depth (code) ;
1.43      pazsan   1824: 
                   1825: : Code:
1.52      jwilke   1826:   defempty?
1.48      anton    1827:     ghost dup there ca>native resolve  <do:> swap >magic !
1.43      pazsan   1828:     depth (code) ;
                   1829: 
                   1830: : end-code
1.52      jwilke   1831:     (end-code)
1.43      pazsan   1832:     depth ?dup IF   1- <> ABORT" CROSS: Stack changed"
                   1833:     ELSE true ABORT" CROSS: Stack empty" THEN
1.52      jwilke   1834:     ;
1.14      anton    1835: 
1.57      pazsan   1836: ( Cond ) : chars tchar * ; ( Cond )
1.1       anton    1837: 
                   1838: >CROSS
1.52      jwilke   1839: 
1.1       anton    1840: \ tLiteral                                             12dec92py
                   1841: 
                   1842: >TARGET
1.40      pazsan   1843: Cond: \G  T-\G ;Cond
                   1844: 
1.1       anton    1845: Cond:  Literal ( n -- )   restrict? lit, ;Cond
                   1846: Cond: ALiteral ( n -- )   restrict? alit, ;Cond
                   1847: 
                   1848: : Char ( "<char>" -- )  bl word char+ c@ ;
                   1849: Cond: [Char]   ( "<char>" -- )  restrict? Char  lit, ;Cond
                   1850: 
1.43      pazsan   1851: \ some special literals                                        27jan97jaw
                   1852: 
1.52      jwilke   1853: \ !! Known Bug: Special Literals and plug-ins work only correct
                   1854: \ on 16 and 32 Bit Targets and 32 Bit Hosts!
                   1855: 
1.43      pazsan   1856: Cond: MAXU
1.52      jwilke   1857:   restrict? 
                   1858:   tcell 1 cells u> 
                   1859:   IF   compile lit tcell 0 ?DO FF T c, H LOOP 
1.77    ! jwilke   1860:   ELSE ffffffff lit, THEN
1.52      jwilke   1861:   ;Cond
1.43      pazsan   1862: 
                   1863: Cond: MINI
1.52      jwilke   1864:   restrict?
                   1865:   tcell 1 cells u>
                   1866:   IF   compile lit bigendian 
                   1867:        IF      80 T c, H tcell 1 ?DO 0 T c, H LOOP 
                   1868:        ELSE    tcell 1 ?DO 0 T c, H LOOP 80 T c, H
                   1869:        THEN
1.77    ! jwilke   1870:   ELSE tcell 2 = IF 8000 ELSE 80000000 THEN lit, THEN
1.52      jwilke   1871:   ;Cond
1.43      pazsan   1872:  
                   1873: Cond: MAXI
1.52      jwilke   1874:  restrict?
                   1875:  tcell 1 cells u>
                   1876:  IF    compile lit bigendian 
                   1877:        IF      7F T c, H tcell 1 ?DO FF T c, H LOOP
                   1878:        ELSE    tcell 1 ?DO FF T c, H LOOP 7F T c, H
                   1879:        THEN
1.77    ! jwilke   1880:  ELSE  tcell 2 = IF 7fff ELSE 7fffffff THEN lit, THEN
1.43      pazsan   1881:  ;Cond
                   1882: 
1.1       anton    1883: >CROSS
                   1884: \ Target compiling loop                                12dec92py
                   1885: \ ">tib trick thrown out                               10may93jaw
                   1886: \ number? defined at the top                           11may93jaw
1.77    ! jwilke   1887: \ replaced >in by save-input                           
        !          1888: 
        !          1889: : discard 0 ?DO drop LOOP ;
1.1       anton    1890: 
                   1891: \ compiled word might leave items on stack!
1.77    ! jwilke   1892: : tcom ( x1 .. xn n name -- )
        !          1893: \  dup count type space
        !          1894:   gfind  ?dup
        !          1895:   IF    >r >r discard r> r>
        !          1896:        0> IF   >exec @ execute
        !          1897:        ELSE    gexecute  THEN 
        !          1898:        EXIT 
        !          1899:   THEN
        !          1900:   number? dup  
        !          1901:   IF   0> IF swap lit,  THEN  lit, discard
        !          1902:   ELSE 2drop restore-input throw ghost gexecute THEN  ;
1.1       anton    1903: 
                   1904: >TARGET
                   1905: \ : ; DOES>                                            13dec92py
                   1906: \ ]                                                     9may93py/jaw
                   1907: 
                   1908: : ] state on
1.54      pazsan   1909:     Compiling comp-state !
1.1       anton    1910:     BEGIN
1.77    ! jwilke   1911:         BEGIN save-input bl word
        !          1912:               dup c@ 0= WHILE drop discard refill 0=
1.1       anton    1913:               ABORT" CROSS: End of file while target compiling"
                   1914:         REPEAT
                   1915:         tcom
                   1916:         state @
                   1917:         0=
                   1918:     UNTIL ;
                   1919: 
                   1920: \ by the way: defining a second interpreter (a compiler-)loop
                   1921: \             is not allowed if a system should be ans conform
                   1922: 
                   1923: : : ( -- colon-sys ) \ Name
1.52      jwilke   1924:   defempty?
                   1925:   constflag off \ don't let this flag work over colon defs
                   1926:                \ just to go sure nothing unwanted happens
1.43      pazsan   1927:   >in @ skip? IF  drop skip-defs  EXIT  THEN  >in !
1.1       anton    1928:   (THeader ;Resolve ! there ;Resolve cell+ !
1.52      jwilke   1929:   docol, ]comp depth T ] H ;
1.1       anton    1930: 
1.37      pazsan   1931: : :noname ( -- colon-sys )
1.52      jwilke   1932:   T cfalign H there docol, 0 ;Resolve ! depth T ] H ;
1.37      pazsan   1933: 
1.2       pazsan   1934: Cond: EXIT ( -- )  restrict?  compile ;S  ;Cond
1.6       anton    1935: 
                   1936: Cond: ?EXIT ( -- ) 1 abort" CROSS: using ?exit" ;Cond
1.2       pazsan   1937: 
1.52      jwilke   1938: >CROSS
                   1939: : LastXT ;Resolve @ 0= abort" CROSS: no definition for LastXT"
                   1940:          ;Resolve cell+ @ ;
                   1941: 
                   1942: >TARGET
                   1943: 
                   1944: Cond: recurse ( -- ) Last-Ghost @ gexecute ;Cond
                   1945: 
1.1       anton    1946: Cond: ; ( -- ) restrict?
                   1947:                depth ?dup IF   1- <> ABORT" CROSS: Stack changed"
                   1948:                           ELSE true ABORT" CROSS: Stack empty" THEN
1.52      jwilke   1949:                fini,
                   1950:                comp[
                   1951:                state off
1.1       anton    1952:                ;Resolve @
                   1953:                IF ;Resolve @ ;Resolve cell+ @ resolve THEN
1.54      pazsan   1954:                Interpreting comp-state !
1.1       anton    1955:                ;Cond
1.54      pazsan   1956: Cond: [  restrict? state off Interpreting comp-state ! ;Cond
1.1       anton    1957: 
                   1958: >CROSS
1.54      pazsan   1959: 
                   1960: Create GhostDummy ghostheader
                   1961: <res> GhostDummy >magic !
                   1962: 
1.52      jwilke   1963: : !does ( does-action -- )
                   1964: \ !! zusammenziehen und dodoes, machen!
1.54      pazsan   1965:     tlastcfa @ [G'] :dovar killref
                   1966: \    tlastcfa @ dup there >r tdp ! compile :dodoes r> tdp ! T cell+ ! H ;
1.52      jwilke   1967: \ !! geht so nicht, da dodoes, ghost will!
1.54      pazsan   1968:     GhostDummy >link ! GhostDummy 
                   1969:     tlastcfa @ >tempdp dodoes, tempdp> ;
1.1       anton    1970: 
                   1971: >TARGET
                   1972: Cond: DOES> restrict?
1.52      jwilke   1973:         compile (does>) doeshandler, 
                   1974:        \ resolve words made by builders
                   1975:        tdoes @ ?dup IF  @ T here H resolve THEN
1.1       anton    1976:         ;Cond
1.52      jwilke   1977: : DOES> switchrom doeshandler, T here H !does depth T ] H ;
1.1       anton    1978: 
                   1979: >CROSS
                   1980: \ Creation                                             01nov92py
                   1981: 
                   1982: \ Builder                                               11may93jaw
                   1983: 
1.52      jwilke   1984: : Builder    ( Create-xt do:-xt "name" -- )
                   1985: \ builds up a builder in current vocabulary
                   1986: \ create-xt is executed when word is interpreted
                   1987: \ do:-xt is executet when the created word from builder is executed
                   1988: \ for do:-xt an additional entry after the normal ghost-enrys is used
                   1989: 
1.1       anton    1990:   >in @ alias2 swap dup >in ! >r >r
1.54      pazsan   1991:   Make-Ghost 
                   1992:   rot swap >exec dup @ ['] NoExec <>
                   1993:   IF 2drop ELSE ! THEN
                   1994:   ,
1.1       anton    1995:   r> r> >in !
1.11      pazsan   1996:   also ghosts ' previous swap ! ;
                   1997: \  DOES>  dup >exec @ execute ;
1.1       anton    1998: 
1.52      jwilke   1999: : gdoes,  ( ghost -- )
                   2000: \ makes the codefield for a word that is built
1.75      jwilke   2001:   >end @ dup undefined? 0=
1.52      jwilke   2002:   IF
1.42      pazsan   2003:        dup >magic @ <do:> =
1.54      pazsan   2004:        IF       doer, 
                   2005:        ELSE    dodoes,
                   2006:        THEN
                   2007:        EXIT
1.52      jwilke   2008:   THEN
                   2009: \  compile :dodoes gexecute
                   2010: \  T here H tcell - reloff 
1.54      pazsan   2011:   2 refered 
                   2012:   0 fillcfa
                   2013:   ;
1.1       anton    2014: 
1.52      jwilke   2015: : TCreate ( <name> -- )
                   2016:   executed-ghost @
1.1       anton    2017:   CreateFlag on
1.52      jwilke   2018:   create-forward-warn
                   2019:   IF ['] reswarn-forward IS resolve-warning THEN
1.11      pazsan   2020:   Theader >r dup gdoes,
1.77    ! jwilke   2021: \ stores execution semantic in the built word
1.52      jwilke   2022:   >end @ >exec @ r> >exec ! ;
                   2023: 
                   2024: : RTCreate ( <name> -- )
                   2025: \ creates a new word with code-field in ram
                   2026:   executed-ghost @
                   2027:   CreateFlag on
                   2028:   create-forward-warn
                   2029:   IF ['] reswarn-forward IS resolve-warning THEN
                   2030:   \ make Alias
                   2031:   (THeader there 0 T a, H 80 flag! ( S executed-ghost new-ghost )
                   2032:   \ store  poiter to code-field
                   2033:   switchram T cfalign H
                   2034:   there swap T ! H
                   2035:   there tlastcfa ! 
                   2036:   dup there resolve 0 ;Resolve !
                   2037:   >r dup gdoes,
1.11      pazsan   2038:   >end @ >exec @ r> >exec ! ;
1.1       anton    2039: 
                   2040: : Build:  ( -- [xt] [colon-sys] )
1.52      jwilke   2041:   :noname postpone TCreate ;
                   2042: 
                   2043: : BuildSmart:  ( -- [xt] [colon-sys] )
                   2044:   :noname
1.53      jwilke   2045:   [ T has? rom H [IF] ]
1.52      jwilke   2046:   postpone RTCreate
                   2047:   [ [ELSE] ]
                   2048:   postpone TCreate 
                   2049:   [ [THEN] ] ;
1.1       anton    2050: 
                   2051: : gdoes>  ( ghost -- addr flag )
1.52      jwilke   2052:   executed-ghost @
1.1       anton    2053:   state @ IF  gexecute true EXIT  THEN
1.52      jwilke   2054:   >link @ T >body H false ;
1.1       anton    2055: 
                   2056: \ DO: ;DO                                               11may93jaw
                   2057: \ changed to ?EXIT                                      10may93jaw
                   2058: 
                   2059: : DO:     ( -- addr [xt] [colon-sys] )
                   2060:   here ghostheader
1.11      pazsan   2061:   :noname postpone gdoes> postpone ?EXIT ;
1.1       anton    2062: 
1.42      pazsan   2063: : by:     ( -- addr [xt] [colon-sys] ) \ name
                   2064:   ghost
                   2065:   :noname postpone gdoes> postpone ?EXIT ;
                   2066: 
1.52      jwilke   2067: : ;DO ( addr [xt] [colon-sys] -- addr )
1.1       anton    2068:   postpone ;    ( S addr xt )
                   2069:   over >exec ! ; immediate
                   2070: 
                   2071: : by      ( -- addr ) \ Name
                   2072:   ghost >end @ ;
                   2073: 
                   2074: >TARGET
                   2075: \ Variables and Constants                              05dec92py
                   2076: 
1.52      jwilke   2077: Build:  ( n -- ) ;
                   2078: by: :docon ( ghost -- n ) T @ H ;DO
                   2079: Builder (Constant)
                   2080: 
                   2081: Build:  ( n -- ) T , H ;
                   2082: by (Constant)
                   2083: Builder Constant
                   2084: 
                   2085: Build:  ( n -- ) T A, H ;
                   2086: by (Constant)
                   2087: Builder AConstant
                   2088: 
                   2089: Build:  ( d -- ) T , , H ;
                   2090: DO: ( ghost -- d ) T dup cell+ @ swap @ H ;DO
                   2091: Builder 2Constant
                   2092: 
                   2093: BuildSmart: ;
1.42      pazsan   2094: by: :dovar ( ghost -- addr ) ;DO
1.1       anton    2095: Builder Create
                   2096: 
1.53      jwilke   2097: T has? rom H [IF]
1.54      pazsan   2098: Build: ( -- ) T here 0 , H switchram T align here swap ! 0 , H ( switchrom ) ;
1.52      jwilke   2099: by (Constant)
                   2100: Builder Variable
                   2101: [ELSE]
1.1       anton    2102: Build: T 0 , H ;
                   2103: by Create
                   2104: Builder Variable
1.52      jwilke   2105: [THEN]
1.1       anton    2106: 
1.53      jwilke   2107: T has? rom H [IF]
1.54      pazsan   2108: Build: ( -- ) T here 0 , H switchram T align here swap ! 0 , 0 , H ( switchrom ) ;
                   2109: by (Constant)
                   2110: Builder 2Variable
                   2111: [ELSE]
                   2112: Build: T 0 , 0 , H ;
                   2113: by Create
                   2114: Builder 2Variable
                   2115: [THEN]
                   2116: 
                   2117: T has? rom H [IF]
                   2118: Build: ( -- ) T here 0 , H switchram T align here swap ! 0 , H ( switchrom ) ;
1.52      jwilke   2119: by (Constant)
                   2120: Builder AVariable
                   2121: [ELSE]
1.1       anton    2122: Build: T 0 A, H ;
                   2123: by Create
                   2124: Builder AVariable
1.52      jwilke   2125: [THEN]
1.1       anton    2126: 
1.3       pazsan   2127: \ User variables                                       04may94py
                   2128: 
                   2129: >CROSS
                   2130: Variable tup  0 tup !
                   2131: Variable tudp 0 tudp !
                   2132: : u,  ( n -- udp )
                   2133:   tup @ tudp @ + T  ! H
1.19      pazsan   2134:   tudp @ dup T cell+ H tudp ! ;
1.3       pazsan   2135: : au, ( n -- udp )
                   2136:   tup @ tudp @ + T A! H
1.19      pazsan   2137:   tudp @ dup T cell+ H tudp ! ;
1.3       pazsan   2138: >TARGET
                   2139: 
                   2140: Build: T 0 u, , H ;
1.42      pazsan   2141: by: :douser ( ghost -- up-addr )  T @ H tup @ + ;DO
1.1       anton    2142: Builder User
                   2143: 
1.3       pazsan   2144: Build: T 0 u, , 0 u, drop H ;
                   2145: by User
1.1       anton    2146: Builder 2User
                   2147: 
1.3       pazsan   2148: Build: T 0 au, , H ;
                   2149: by User
1.1       anton    2150: Builder AUser
                   2151: 
1.52      jwilke   2152: BuildSmart: T , H ;
1.44      pazsan   2153: by (Constant)
1.1       anton    2154: Builder Value
                   2155: 
1.52      jwilke   2156: BuildSmart: T A, H ;
1.44      pazsan   2157: by (Constant)
1.32      pazsan   2158: Builder AValue
                   2159: 
1.52      jwilke   2160: BuildSmart:  ( -- ) [T'] noop T A, H ;
1.42      pazsan   2161: by: :dodefer ( ghost -- ) ABORT" CROSS: Don't execute" ;DO
1.1       anton    2162: Builder Defer
1.37      pazsan   2163: 
1.52      jwilke   2164: BuildSmart:  ( inter comp -- ) swap T immediate A, A, H ;
1.37      pazsan   2165: DO: ( ghost -- ) ABORT" CROSS: Don't execute" ;DO
1.38      anton    2166: Builder interpret/compile:
1.24      pazsan   2167: 
                   2168: \ Sturctures                                           23feb95py
                   2169: 
                   2170: >CROSS
                   2171: : nalign ( addr1 n -- addr2 )
                   2172: \ addr2 is the aligned version of addr1 wrt the alignment size n
                   2173:  1- tuck +  swap invert and ;
                   2174: >TARGET
                   2175: 
1.44      pazsan   2176: Build: ;
                   2177: by: :dofield T @ H + ;DO
                   2178: Builder (Field)
                   2179: 
1.51      anton    2180: Build: ( align1 offset1 align size "name" --  align2 offset2 )
                   2181:     rot dup T , H ( align1 align size offset1 )
                   2182:     + >r nalign r> ;
1.44      pazsan   2183: by (Field)
1.24      pazsan   2184: Builder Field
                   2185: 
1.51      anton    2186: : struct  T 1 chars 0 H ;
1.24      pazsan   2187: : end-struct  T 2Constant H ;
                   2188: 
1.52      jwilke   2189: : cell% ( n -- size align )
1.51      anton    2190:     T 1 cells H dup ;
1.24      pazsan   2191: 
                   2192: \ ' 2Constant Alias2 end-struct
                   2193: \ 0 1 T Chars H 2Constant struct
1.1       anton    2194: 
1.52      jwilke   2195: \ structural conditionals                              17dec92py
                   2196: 
                   2197: >CROSS
                   2198: : ?struc      ( flag -- )       ABORT" CROSS: unstructured " ;
                   2199: : sys?        ( sys -- sys )    dup 0= ?struc ;
                   2200: : >mark       ( -- sys )        T here  ( dup ." M" hex. ) 0 , H ;
                   2201: 
1.67      jwilke   2202: : branchoffset ( src dest -- ) - tchar / ; \ ?? jaw
1.52      jwilke   2203: 
                   2204: : >resolve    ( sys -- )        T here ( dup ." >" hex. ) over branchoffset swap ! H ;
                   2205: 
                   2206: : <resolve    ( sys -- )        T here ( dup ." <" hex. ) branchoffset , H ;
                   2207: 
1.54      pazsan   2208: :noname compile branch T here branchoffset , H ;
                   2209:   IS branch, ( target-addr -- )
                   2210: :noname compile ?branch T here branchoffset , H ;
                   2211:   IS ?branch, ( target-addr -- )
                   2212: :noname compile branch T here 0 , H ;
                   2213:   IS branchmark, ( -- branchtoken )
                   2214: :noname compile ?branch T here 0 , H ;
                   2215:   IS ?branchmark, ( -- branchtoken )
                   2216: :noname T here 0 , H ;
                   2217:   IS ?domark, ( -- branchtoken )
                   2218: :noname dup T @ H ?struc T here over branchoffset swap ! H ;
                   2219:   IS branchtoresolve, ( branchtoken -- )
                   2220: :noname branchto, T here H ;
                   2221:   IS branchtomark, ( -- target-addr )
1.52      jwilke   2222: 
                   2223: >TARGET
                   2224: 
                   2225: \ Structural Conditionals                              12dec92py
                   2226: 
                   2227: Cond: BUT       restrict? sys? swap ;Cond
                   2228: Cond: YET       restrict? sys? dup ;Cond
                   2229: 
1.54      pazsan   2230: 0 [IF]
1.52      jwilke   2231: >CROSS
                   2232: Variable tleavings
                   2233: >TARGET
                   2234: 
                   2235: Cond: DONE   ( addr -- )  restrict? tleavings @
                   2236:       BEGIN  2dup u> 0=  WHILE  dup T @ H swap >resolve REPEAT
                   2237:       tleavings ! drop ;Cond
                   2238: 
                   2239: >CROSS
1.54      pazsan   2240: : (leave)  T here H tleavings @ T , H  tleavings ! ;
1.52      jwilke   2241: >TARGET
                   2242: 
1.54      pazsan   2243: Cond: LEAVE     restrict? compile branch (leave) ;Cond
                   2244: Cond: ?LEAVE    restrict? compile 0=  compile ?branch (leave)  ;Cond
1.52      jwilke   2245: 
1.53      jwilke   2246: [ELSE]
                   2247:     \ !! This is WIP
                   2248:     \ The problem is (?DO)!
                   2249:     \ perhaps we need a plug-in for (?DO)
                   2250:     
                   2251: >CROSS
                   2252: Variable tleavings 0 tleavings !
1.54      pazsan   2253: : (done) ( addr -- )
                   2254:     tleavings @
                   2255:     BEGIN  dup
                   2256:     WHILE
                   2257:        >r dup r@ cell+ @ \ address of branch
                   2258:        u> 0=      \ lower than DO?     
                   2259:     WHILE
                   2260:        r@ 2 cells + @ \ branch token
                   2261:        branchtoresolve,
                   2262:        r@ @ r> free throw
                   2263:     REPEAT  r>  THEN
                   2264:     tleavings ! drop ;
                   2265: 
1.53      jwilke   2266: >TARGET
                   2267: 
1.54      pazsan   2268: Cond: DONE   ( addr -- )  restrict? (done) ;Cond
1.53      jwilke   2269: 
                   2270: >CROSS
1.54      pazsan   2271: : (leave) ( branchtoken -- )
1.53      jwilke   2272:     3 cells allocate throw >r
                   2273:     T here H r@ cell+ !
                   2274:     r@ 2 cells + !
                   2275:     tleavings @ r@ !
                   2276:     r> tleavings ! ;
                   2277: >TARGET
                   2278: 
1.54      pazsan   2279: Cond: LEAVE     restrict? branchmark, (leave) ;Cond
                   2280: Cond: ?LEAVE    restrict? compile 0=  ?branchmark, (leave)  ;Cond
1.53      jwilke   2281: 
                   2282: [THEN]
                   2283: 
1.54      pazsan   2284: >CROSS
                   2285: \ !!JW ToDo : Move to general tools section
                   2286: 
                   2287: : to1 ( x1 x2 xn n -- addr )
                   2288: \G packs n stack elements in a allocated memory region
                   2289:    dup dup 1+ cells allocate throw dup >r swap 1+
                   2290:    0 DO tuck ! cell+ LOOP
                   2291:    drop r> ;
                   2292: : 1to ( addr -- x1 x2 xn )
                   2293: \G unpacks the elements saved by to1
                   2294:     dup @ swap over cells + swap
                   2295:     0 DO  dup @ swap 1 cells -  LOOP
                   2296:     free throw ;
                   2297: 
                   2298: : loop]     branchto, dup <resolve tcell - (done) ;
                   2299: 
                   2300: : skiploop] ?dup IF branchto, branchtoresolve, THEN ;
                   2301: 
                   2302: >TARGET
                   2303: 
1.52      jwilke   2304: \ Structural Conditionals                              12dec92py
                   2305: 
1.53      jwilke   2306: >TARGET
1.52      jwilke   2307: Cond: AHEAD     restrict? branchmark, ;Cond
                   2308: Cond: IF        restrict? ?branchmark, ;Cond
                   2309: Cond: THEN      restrict? sys? branchto, branchtoresolve, ;Cond
                   2310: Cond: ELSE      restrict? sys? compile AHEAD swap compile THEN ;Cond
                   2311: 
                   2312: Cond: BEGIN     restrict? branchtomark, ;Cond
                   2313: Cond: WHILE     restrict? sys? compile IF swap ;Cond
                   2314: Cond: AGAIN     restrict? sys? branch, ;Cond
                   2315: Cond: UNTIL     restrict? sys? ?branch, ;Cond
                   2316: Cond: REPEAT    restrict? over 0= ?struc compile AGAIN compile THEN ;Cond
                   2317: 
                   2318: Cond: CASE      restrict? 0 ;Cond
                   2319: Cond: OF        restrict? 1+ >r compile over compile =
                   2320:                 compile IF compile drop r> ;Cond
1.45      pazsan   2321: Cond: ENDOF     restrict? >r compile ELSE r> ;Cond
                   2322: Cond: ENDCASE   restrict? compile drop 0 ?DO  compile THEN  LOOP ;Cond
1.1       anton    2323: 
                   2324: \ Structural Conditionals                              12dec92py
                   2325: 
1.67      jwilke   2326: :noname \ ?? i think 0 is too much! jaw
1.54      pazsan   2327:     0 compile (do)
                   2328:     branchtomark,  2 to1 ;
                   2329:   IS do, ( -- target-addr )
                   2330: 
                   2331: \ :noname
                   2332: \     compile 2dup compile = compile IF
                   2333: \     compile 2drop compile ELSE
                   2334: \     compile (do) branchtomark, 2 to1 ;
                   2335: \   IS ?do,
                   2336:     
                   2337: :noname
                   2338:     0 compile (?do)  ?domark, (leave)
                   2339:     branchtomark,  2 to1 ;
                   2340:   IS ?do, ( -- target-addr )
                   2341: :noname compile (for) branchtomark, ;
                   2342:   IS for, ( -- target-addr )
                   2343: :noname 1to compile (loop)  loop] compile unloop skiploop] ;
                   2344:   IS loop, ( target-addr -- )
                   2345: :noname 1to compile (+loop)  loop] compile unloop skiploop] ;
                   2346:   IS +loop, ( target-addr -- )
                   2347: :noname compile (next)  loop] compile unloop ;
                   2348:   IS next, ( target-addr -- )
                   2349: 
                   2350: Cond: DO       restrict? do, ;Cond
                   2351: Cond: ?DO      restrict? ?do, ;Cond
                   2352: Cond: FOR      restrict? for, ;Cond
                   2353: 
                   2354: Cond: LOOP     restrict? sys? loop, ;Cond
                   2355: Cond: +LOOP    restrict? sys? +loop, ;Cond
                   2356: Cond: NEXT     restrict? sys? next, ;Cond
1.52      jwilke   2357: 
1.1       anton    2358: \ String words                                         23feb93py
                   2359: 
1.52      jwilke   2360: : ,"            [char] " parse T string, align H ;
1.1       anton    2361: 
                   2362: Cond: ."        restrict? compile (.")     T ," H ;Cond
                   2363: Cond: S"        restrict? compile (S")     T ," H ;Cond
                   2364: Cond: ABORT"    restrict? compile (ABORT") T ," H ;Cond
                   2365: 
                   2366: Cond: IS        T ' >body H compile ALiteral compile ! ;Cond
1.66      pazsan   2367: : IS            T >address ' >body ! H ;
1.9       pazsan   2368: Cond: TO        T ' >body H compile ALiteral compile ! ;Cond
                   2369: : TO            T ' >body ! H ;
1.1       anton    2370: 
1.52      jwilke   2371: Cond: defers   T ' >body @ compile, H ;Cond
                   2372: : on           T -1 swap ! H ; 
                   2373: : off          T 0 swap ! H ;
                   2374: 
1.1       anton    2375: \ LINKED ERR" ENV" 2ENV"                                18may93jaw
                   2376: 
                   2377: \ linked list primitive
                   2378: : linked        T here over @ A, swap ! H ;
1.52      jwilke   2379: : chained      T linked A, H ;
1.1       anton    2380: 
                   2381: : err"   s" ErrLink linked" evaluate T , H
1.52      jwilke   2382:          [char] " parse T string, align H ;
1.1       anton    2383: 
                   2384: : env"  [char] " parse s" EnvLink linked" evaluate
1.52      jwilke   2385:         T string, align , H ;
1.1       anton    2386: 
                   2387: : 2env" [char] " parse s" EnvLink linked" evaluate
1.52      jwilke   2388:         here >r T string, align , , H
1.1       anton    2389:         r> dup T c@ H 80 and swap T c! H ;
                   2390: 
                   2391: \ compile must be last                                 22feb93py
                   2392: 
                   2393: Cond: compile ( -- ) restrict? \ name
1.13      pazsan   2394:       bl word gfind dup 0= ABORT" CROSS: Can't compile"
1.1       anton    2395:       0> IF    gexecute
                   2396:          ELSE  dup >magic @ <imm> =
                   2397:                IF   gexecute
1.54      pazsan   2398:                ELSE compile (compile) addr, THEN THEN ;Cond
1.1       anton    2399: 
                   2400: Cond: postpone ( -- ) restrict? \ name
1.13      pazsan   2401:       bl word gfind dup 0= ABORT" CROSS: Can't compile"
1.1       anton    2402:       0> IF    gexecute
                   2403:          ELSE  dup >magic @ <imm> =
                   2404:                IF   gexecute
1.54      pazsan   2405:               ELSE compile (compile) addr, THEN THEN ;Cond
                   2406:           
1.77    ! jwilke   2407: \ save-cross                                           17mar93py
        !          2408: 
        !          2409: hex
        !          2410: 
        !          2411: >CROSS
        !          2412: Create magic  s" Gforth2x" here over allot swap move
        !          2413: 
        !          2414: bigendian 1+ \ strangely, in magic big=0, little=1
        !          2415: tcell 1 = 0 and or
        !          2416: tcell 2 = 2 and or
        !          2417: tcell 4 = 4 and or
        !          2418: tcell 8 = 6 and or
        !          2419: tchar 1 = 00 and or
        !          2420: tchar 2 = 28 and or
        !          2421: tchar 4 = 50 and or
        !          2422: tchar 8 = 78 and or
        !          2423: magic 7 + c!
        !          2424: 
        !          2425: : save-cross ( "image-name" "binary-name" -- )
        !          2426:   bl parse ." Saving to " 2dup type cr
        !          2427:   w/o bin create-file throw >r
        !          2428:   TNIL IF
        !          2429:       s" #! "   r@ write-file throw
        !          2430:       bl parse  r@ write-file throw
        !          2431:       s"  -i"   r@ write-file throw
        !          2432:       #lf       r@ emit-file throw
        !          2433:       r@ dup file-position throw drop 8 mod 8 swap ( file-id limit index )
        !          2434:       ?do
        !          2435:          bl over emit-file throw
        !          2436:       loop
        !          2437:       drop
        !          2438:       magic 8       r@ write-file throw \ write magic
        !          2439:   ELSE
        !          2440:       bl parse 2drop
        !          2441:   THEN
        !          2442:   image @ there 
        !          2443:   r@ write-file throw \ write image
        !          2444:   TNIL IF
        !          2445:       bit$  @ there 1- tcell>bit rshift 1+
        !          2446:                 r@ write-file throw \ write tags
        !          2447:   THEN
        !          2448:   r> close-file throw ;
        !          2449: 
        !          2450: : save-region ( addr len -- )
        !          2451:   bl parse w/o bin create-file throw >r
        !          2452:   swap >image swap r@ write-file throw
        !          2453:   r> close-file throw ;
        !          2454: 
1.54      pazsan   2455: \ \ minimal definitions
                   2456:           
1.77    ! jwilke   2457: >MINIMAL also minimal
        !          2458: 
1.1       anton    2459: \ Usefull words                                        13feb93py
                   2460: 
                   2461: : KB  400 * ;
                   2462: 
1.54      pazsan   2463: \ \ [IF] [ELSE] [THEN] ...                             14sep97jaw
                   2464: 
                   2465: \ it is useful to define our own structures and not to rely
                   2466: \ on the words in the compiler
                   2467: \ The words in the compiler might be defined with vocabularies
                   2468: \ this doesn't work with our self-made compile-loop
                   2469: 
                   2470: Create parsed 20 chars allot   \ store word we parsed
                   2471: 
                   2472: : upcase
                   2473:     parsed count bounds
                   2474:     ?DO I c@ toupper I c! LOOP ;
                   2475: 
                   2476: : [ELSE]
                   2477:     1 BEGIN
                   2478:        BEGIN bl word count dup WHILE
1.77    ! jwilke   2479:            comment? 20 umin parsed place upcase parsed count
1.54      pazsan   2480:            2dup s" [IF]" compare 0= >r 
                   2481:            2dup s" [IFUNDEF]" compare 0= >r
                   2482:            2dup s" [IFDEF]" compare 0= r> or r> or
                   2483:            IF   2drop 1+
                   2484:            ELSE 2dup s" [ELSE]" compare 0=
                   2485:                IF   2drop 1- dup
                   2486:                    IF 1+
                   2487:                    THEN
                   2488:                ELSE
                   2489:                    2dup s" [ENDIF]" compare 0= >r
                   2490:                    s" [THEN]" compare 0= r> or
                   2491:                    IF 1- THEN
                   2492:                THEN
                   2493:            THEN
                   2494:            ?dup 0= ?EXIT
                   2495:        REPEAT
                   2496:        2drop refill 0=
                   2497:     UNTIL drop ; immediate
                   2498:   
                   2499: : [THEN] ( -- ) ; immediate
                   2500: 
                   2501: : [ENDIF] ( -- ) ; immediate
                   2502: 
                   2503: : [IF] ( flag -- )
                   2504:     0= IF postpone [ELSE] THEN ; immediate 
                   2505: 
                   2506: Cond: [IF]      postpone [IF] ;Cond
                   2507: Cond: [THEN]    postpone [THEN] ;Cond
                   2508: Cond: [ELSE]    postpone [ELSE] ;Cond
                   2509: 
1.1       anton    2510: \ define new [IFDEF] and [IFUNDEF]                      20may93jaw
                   2511: 
1.77    ! jwilke   2512: : defined? tdefined? ;
1.44      pazsan   2513: : needed? needed? ;
                   2514: : doer? doer? ;
1.1       anton    2515: 
1.52      jwilke   2516: \ we want to use IFDEF on compiler directives (e.g. E?) in the source, too
                   2517: 
                   2518: : directive? 
1.77    ! jwilke   2519:   bl word count [ ' target >wordlist ] literal search-wordlist 
1.52      jwilke   2520:   dup IF nip THEN ;
                   2521: 
                   2522: : [IFDEF]  >in @ directive? swap >in !
1.77    ! jwilke   2523:           0= IF tdefined? ELSE name 2drop true THEN
1.52      jwilke   2524:           postpone [IF] ;
                   2525: 
1.77    ! jwilke   2526: : [IFUNDEF] tdefined? 0= postpone [IF] ;
1.1       anton    2527: 
1.54      pazsan   2528: Cond: [IFDEF]   postpone [IFDEF] ;Cond
                   2529: 
                   2530: Cond: [IFUNDEF] postpone [IFUNDEF] ;Cond
                   2531: 
1.1       anton    2532: \ C: \- \+ Conditional Compiling                         09jun93jaw
                   2533: 
1.77    ! jwilke   2534: : C: >in @ tdefined? 0=
        !          2535:      IF    >in ! X :
1.1       anton    2536:      ELSE drop
                   2537:         BEGIN bl word dup c@
                   2538:               IF   count comment? s" ;" compare 0= ?EXIT
                   2539:               ELSE refill 0= ABORT" CROSS: Out of Input while C:"
                   2540:               THEN
                   2541:         AGAIN
                   2542:      THEN ;
                   2543: 
1.74      jwilke   2544: : d? d? ;
                   2545: 
                   2546: \G doesn't skip line when debug switch is on
                   2547: : \D D? 0= IF postpone \ THEN ;
1.52      jwilke   2548: 
1.48      anton    2549: \G interprets the line if word is not defined
1.77    ! jwilke   2550: : \- tdefined? IF postpone \ THEN ;
1.48      anton    2551: 
                   2552: \G interprets the line if word is defined
1.77    ! jwilke   2553: : \+ tdefined? 0= IF postpone \ THEN ;
1.1       anton    2554: 
1.48      anton    2555: Cond: \- \- ;Cond
                   2556: Cond: \+ \+ ;Cond
1.52      jwilke   2557: Cond: \D \D ;Cond
1.48      anton    2558: 
                   2559: : ?? bl word find IF execute ELSE drop 0 THEN ;
                   2560: 
                   2561: : needed:
                   2562: \G defines ghost for words that we want to be compiled
                   2563:   BEGIN >in @ bl word c@ WHILE >in ! ghost drop REPEAT drop ;
                   2564: 
1.1       anton    2565: \ words that should be in minimal
1.52      jwilke   2566: 
                   2567: create s-buffer 50 chars allot
                   2568: 
1.77    ! jwilke   2569: bigendian Constant bigendian
1.1       anton    2570: 
1.52      jwilke   2571: : here there ;
1.67      jwilke   2572: : equ constant ;
                   2573: : mark there constant ;
1.54      pazsan   2574: 
                   2575: \ compiler directives
1.52      jwilke   2576: : >ram >ram ;
                   2577: : >rom >rom ;
                   2578: : >auto >auto ;
                   2579: : >tempdp >tempdp ;
                   2580: : tempdp> tempdp> ;
                   2581: : const constflag on ;
                   2582: : warnings name 3 = 0= twarnings ! drop ;
1.60      anton    2583: : | ;
                   2584: \ : | NoHeaderFlag on ; \ This is broken (damages the last word)
1.52      jwilke   2585: 
1.48      anton    2586: : save-cross save-cross ;
1.52      jwilke   2587: : save-region save-region ;
                   2588: : tdump swap >image swap dump ;
                   2589: 
1.48      anton    2590: also forth 
1.52      jwilke   2591: [IFDEF] Label           : Label defempty? Label ; [THEN] 
                   2592: [IFDEF] start-macros    : start-macros defempty? start-macros ; [THEN]
1.77    ! jwilke   2593: \ [IFDEF] builttag     : builttag builttag ;   [THEN]
1.48      anton    2594: previous
                   2595: 
1.52      jwilke   2596: : s" [char] " parse s-buffer place s-buffer count ; \ for environment?
1.43      pazsan   2597: : + + ;
1.52      jwilke   2598: : 1+ 1 + ;
                   2599: : 2+ 2 + ;
1.43      pazsan   2600: : 1- 1- ;
                   2601: : - - ;
1.52      jwilke   2602: : and and ;
                   2603: : or or ;
1.43      pazsan   2604: : 2* 2* ;
                   2605: : * * ;
                   2606: : / / ;
                   2607: : dup dup ;
                   2608: : over over ;
                   2609: : swap swap ;
                   2610: : rot rot ;
                   2611: : drop drop ;
                   2612: : =   = ;
                   2613: : 0=   0= ;
                   2614: : lshift lshift ;
                   2615: : 2/ 2/ ;
1.19      pazsan   2616: : . . ;
1.1       anton    2617: 
1.43      pazsan   2618: : all-words    ['] false    IS skip? ;
                   2619: : needed-words ['] needed?  IS skip? ;
1.75      jwilke   2620: : undef-words  ['] defined2? IS skip? ;
                   2621: : skipdef skipdef ;
1.1       anton    2622: 
1.40      pazsan   2623: : \  postpone \ ;  immediate
1.47      pazsan   2624: : \G T-\G ; immediate
1.40      pazsan   2625: : (  postpone ( ;  immediate
1.1       anton    2626: : include bl word count included ;
1.52      jwilke   2627: : require require ;
1.1       anton    2628: : .( [char] ) parse type ;
1.52      jwilke   2629: : ." [char] " parse type ;
1.1       anton    2630: : cr cr ;
                   2631: 
1.77    ! jwilke   2632: : times 0 ?DO dup X c, LOOP drop ; \ used for space table creation
        !          2633: 
        !          2634: \ only forth also cross also minimal definitions order
1.1       anton    2635: 
                   2636: \ cross-compiler words
                   2637: 
                   2638: : decimal       decimal ;
                   2639: : hex           hex ;
                   2640: 
1.77    ! jwilke   2641: \ : tudp          X tudp ;
        !          2642: \ : tup           X tup ;
        !          2643: 
        !          2644: : doc-off       false to-doc ! ;
        !          2645: : doc-on        true  to-doc ! ;
1.39      pazsan   2646: 
1.52      jwilke   2647: [IFDEF] dbg : dbg dbg ; [THEN]
1.39      pazsan   2648: 
1.1       anton    2649: \ for debugging...
                   2650: : order         order ;
1.52      jwilke   2651: : hwords         words ;
                   2652: : words        also ghosts words previous ;
1.1       anton    2653: : .s            .s ;
                   2654: : bye           bye ;
                   2655: 
                   2656: \ turnkey direction
                   2657: : H forth ; immediate
                   2658: : T minimal ; immediate
                   2659: : G ghosts ; immediate
                   2660: 
1.77    ! jwilke   2661: : turnkey 
        !          2662:    \GFORTH 0 set-order also Target 
        !          2663:    \ANSI [ ' target >wordlist ] Literal 1 set-order
        !          2664:    definitions
        !          2665:    also Minimal also ;
1.1       anton    2666: 
                   2667: \ these ones are pefered:
                   2668: 
                   2669: : lock   turnkey ;
1.74      jwilke   2670: : unlock previous forth also cross ;
1.52      jwilke   2671: 
1.77    ! jwilke   2672: \ also minimal
1.52      jwilke   2673: : [[ also unlock ;
                   2674: : ]] previous previous ;
1.1       anton    2675: 
                   2676: unlock definitions also minimal
                   2677: : lock   lock ;
                   2678: lock
1.77    ! jwilke   2679: 
        !          2680: \ load cross compiler extension defined in mach file
        !          2681: 
        !          2682: UNLOCK >CROSS
        !          2683: 
        !          2684: [IFDEF] extend-cross extend-cross [THEN]
        !          2685: 
        !          2686: LOCK

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