Annotation of gforth/cross.fs, revision 1.84

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: 
1.78      jwilke     56: : T  previous Ghosts also Target ; immediate
1.77      jwilke     57: : G  Ghosts ; immediate
                     58: : H  previous Forth also Cross ; immediate
                     59: 
                     60: forth definitions
                     61: 
1.78      jwilke     62: : T  previous Ghosts also Target ; immediate
1.77      jwilke     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 )
1.78      jwilke    138:     over [char] ' =
                    139:     IF         \ a ' alone is rather unusual :-)
                    140:        drop char+ c@ 0 true EXIT 
                    141:     THEN
1.77      jwilke    142:     base @ >r  dpl on  getbase
                    143:     0. 2swap
                    144:     BEGIN ( d addr len )
                    145:        dup >r >number dup
                    146:     WHILE \ there are characters left
                    147:        dup r> -
                    148:     WHILE \ the last >number parsed something
                    149:        dup 1- dpl ! over c@ [char] . =
                    150:     WHILE \ the current char is '.'
                    151:        1 /string
                    152:     REPEAT  THEN \ there are unparseable characters left
                    153:        2drop false
                    154:     ELSE
                    155:        rdrop 2drop true
                    156:     THEN
                    157:     r> base ! ;
                    158: 
                    159: \ ouch, this is complicated; there must be a simpler way - anton
                    160: : s>number? ( addr len -- d f )
                    161:     \ converts string addr len into d, flag indicates success
                    162:     sign? >r
                    163:     s>unumber?
                    164:     0= IF
                    165:         rdrop false
                    166:     ELSE \ no characters left, all ok
                    167:        r>
                    168:        IF
                    169:            dnegate
                    170:        THEN
                    171:        true
                    172:     THEN ;
                    173: 
                    174: : s>number ( addr len -- d )
                    175:     \ don't use this, there is no way to tell success
                    176:     s>number? drop ;
                    177: 
                    178: : snumber? ( c-addr u -- 0 / n -1 / d 0> )
                    179:     s>number? 0=
                    180:     IF
                    181:        2drop false  EXIT
                    182:     THEN
                    183:     dpl @ dup 0< IF
                    184:        nip
                    185:     ELSE
                    186:        1+
                    187:     THEN ;
                    188: 
                    189: : number? ( string -- string 0 / n -1 / d 0> )
                    190:     dup >r count snumber? dup if
                    191:        rdrop
                    192:     else
                    193:        r> swap
                    194:     then ;
                    195: 
                    196: : number ( string -- d )
                    197:     number? ?dup 0= abort" ?"  0<
                    198:     IF
                    199:        s>d
                    200:     THEN ;
                    201: 
                    202: [THEN]
1.48      anton     203: 
1.52      jwilke    204: hex     \ the defualt base for the cross-compiler is hex !!
1.78      jwilke    205: \ Warnings off
1.52      jwilke    206: 
                    207: \ words that are generaly useful
                    208: 
1.59      pazsan    209: : KB  400 * ;
1.52      jwilke    210: : >wordlist ( vocabulary-xt -- wordlist-struct )
                    211:   also execute get-order swap >r 1- set-order r> ;
                    212: 
                    213: : umax 2dup u< IF swap THEN drop ;
                    214: : umin 2dup u> IF swap THEN drop ;
1.1       anton     215: 
1.23      pazsan    216: : string, ( c-addr u -- )
                    217:     \ puts down string as cstring
                    218:     dup c, here swap chars dup allot move ;
1.5       pazsan    219: 
1.77      jwilke    220: : ," [char] " parse string, ;
                    221: 
1.52      jwilke    222: : SetValue ( n -- <name> )
1.54      pazsan    223: \G Same behaviour as "Value" if the <name> is not defined
                    224: \G Same behaviour as "to" if <name> is defined
1.52      jwilke    225: \G SetValue searches in the current vocabulary
1.68      jwilke    226:   save-input bl word >r restore-input throw r> count
                    227:   get-current search-wordlist
                    228:   IF   drop >r
                    229:        \ we have to set current to be topmost context wordlist
                    230:        get-order get-order get-current swap 1+ set-order
                    231:        r> ['] to execute
1.74      jwilke    232:        set-order
1.68      jwilke    233:   ELSE Value THEN ;
1.52      jwilke    234: 
                    235: : DefaultValue ( n -- <name> )
1.54      pazsan    236: \G Same behaviour as "Value" if the <name> is not defined
                    237: \G DefaultValue searches in the current vocabulary
1.52      jwilke    238:  save-input bl word >r restore-input throw r> count
                    239:  get-current search-wordlist
1.56      pazsan    240:  IF bl word drop 2drop ELSE Value THEN ;
1.1       anton     241: 
                    242: hex
                    243: 
1.52      jwilke    244: \ 1 Constant Cross-Flag        \ to check whether assembler compiler plug-ins are
                    245:                        \ for cross-compiling
                    246: \ No! we use "[IFUNDEF]" there to find out whether we are target compiling!!!
                    247: 
                    248: : comment? ( c-addr u -- c-addr u )
                    249:         2dup s" (" compare 0=
                    250:         IF    postpone (
                    251:         ELSE  2dup s" \" compare 0= IF postpone \ THEN
                    252:         THEN ;
                    253: 
                    254: \ Begin CROSS COMPILER:
                    255: 
1.74      jwilke    256: \ debugging
1.52      jwilke    257: 
1.74      jwilke    258: 0 [IF]
                    259: 
                    260: This implements debugflags for the cross compiler and the compiled
                    261: images. It works identical to the has-flags in the environment.
                    262: The debugflags are defined in a vocabluary. If the word exists and
                    263: its value is true, the flag is switched on.
                    264: 
                    265: [THEN]
                    266: 
1.77      jwilke    267: >CROSS
                    268: 
1.74      jwilke    269: Vocabulary debugflags  \ debug flags for cross
                    270: also debugflags get-order over
                    271: Constant debugflags-wl
                    272: set-order previous
                    273: 
                    274: : DebugFlag
                    275:   get-current >r debugflags-wl set-current
                    276:   SetValue
                    277:   r> set-current ;
                    278: 
                    279: : Debug? ( adr u -- flag )
                    280: \G return true if debug flag is defined or switched on
                    281:   debugflags-wl search-wordlist
                    282:   IF EXECUTE
                    283:   ELSE false THEN ;
                    284: 
                    285: : D? ( <name> -- flag )
                    286: \G return true if debug flag is defined or switched on
                    287: \G while compiling we do not return the current value but
                    288:   bl word count debug? ;
                    289: 
                    290: : [d?]
                    291: \G compile the value-xt so the debug flag can be switched
                    292: \G the flag must exist!
                    293:   bl word count debugflags-wl search-wordlist
                    294:   IF   compile,
                    295:   ELSE  -1 ABORT" unknown debug flag"
                    296:        \ POSTPONE false 
                    297:   THEN ; immediate
1.54      pazsan    298: 
1.77      jwilke    299: \ \ --------------------       source file
                    300: 
                    301: decimal
                    302: 
                    303: Variable cross-file-list
                    304: 0 cross-file-list !
                    305: Variable target-file-list
                    306: 0 target-file-list !
                    307: Variable host-file-list
                    308: 0 host-file-list !
                    309: 
                    310: cross-file-list Value file-list
                    311: 0 Value source-desc
                    312: 
                    313: \ file loading
                    314: 
                    315: : >fl-id   1 cells + ;
                    316: : >fl-name 2 cells + ;
                    317: 
                    318: Variable filelist 0 filelist !
                    319: Create NoFile ," #load-file#"
                    320: 
                    321: : loadfile ( -- adr )
                    322:   source-desc ?dup IF >fl-name ELSE NoFile THEN ;
                    323: 
                    324: : sourcefilename ( -- adr len ) 
                    325:   loadfile count ;
                    326: 
                    327: \ANSI : sourceline# 0 ;
                    328: 
                    329: \ \ --------------------       path handling from kernel/paths.fs
                    330: 
                    331: \ paths.fs path file handling                                    03may97jaw
                    332: 
                    333: \ -Changing the search-path:
                    334: \ fpath+ <path>        adds a directory to the searchpath
                    335: \ fpath= <path>|<path> makes complete now searchpath
                    336: \                      seperator is |
                    337: \ .fpath               displays the search path
                    338: \ remark I: 
                    339: \ a ./ in the beginning of filename is expanded to the directory the
                    340: \ current file comes from. ./ can also be included in the search-path!
                    341: \ ~+/ loads from the current working directory
                    342: 
                    343: \ remark II:
                    344: \ if there is no sufficient space for the search path increase it!
                    345: 
                    346: 
                    347: \ -Creating custom paths:
                    348: 
                    349: \ It is possible to use the search mechanism on yourself.
                    350: 
                    351: \ Make a buffer for the path:
                    352: \ create mypath        100 chars ,     \ maximum length (is checked)
                    353: \              0 ,             \ real len
                    354: \              100 chars allot \ space for path
                    355: \ use the same functions as above with:
                    356: \ mypath path+ 
                    357: \ mypath path=
                    358: \ mypath .path
                    359: 
                    360: \ do a open with the search path:
                    361: \ open-path-file ( adr len path -- fd adr len ior )
                    362: \ the file is opened read-only; if the file is not found an error is generated
                    363: 
                    364: \ questions to: wilke@jwdt.com
                    365: 
                    366: [IFUNDEF] +place
                    367: : +place ( adr len adr )
                    368:         2dup >r >r
                    369:         dup c@ char+ + swap move
                    370:         r> r> dup c@ rot + swap c! ;
                    371: [THEN]
                    372: 
                    373: [IFUNDEF] place
                    374: : place ( c-addr1 u c-addr2 )
                    375:         2dup c! char+ swap move ;
                    376: [THEN]
                    377: 
                    378: \ if we have path handling, use this and the setup of it
                    379: [IFUNDEF] open-fpath-file
                    380: 
                    381: create sourcepath 1024 chars , 0 , 1024 chars allot \ !! make this dynamic
                    382: sourcepath value fpath
                    383: 
                    384: : also-path ( adr len path^ -- )
                    385:   >r
                    386:   \ len check
                    387:   r@ cell+ @ over + r@ @ u> ABORT" path buffer too small!"
                    388:   \ copy into
                    389:   tuck r@ cell+ dup @ cell+ + swap cmove
                    390:   \ make delimiter
                    391:   0 r@ cell+ dup @ cell+ + 2 pick + c! 1 + r> cell+ +!
                    392:   ;
                    393: 
                    394: : only-path ( adr len path^ -- )
                    395:   dup 0 swap cell+ ! also-path ;
                    396: 
                    397: : path+ ( path-addr  "dir" -- ) \ gforth
                    398:     \G Add the directory @var{dir} to the search path @var{path-addr}.
                    399:     name rot also-path ;
                    400: 
                    401: : fpath+ ( "dir" ) \ gforth
                    402:     \G Add directory @var{dir} to the Forth search path.
                    403:     fpath path+ ;
                    404: 
                    405: : path= ( path-addr "dir1|dir2|dir3" ) \ gforth
                    406:     \G Make a complete new search path; the path separator is |.
                    407:     name 2dup bounds ?DO i c@ [char] | = IF 0 i c! THEN LOOP
                    408:     rot only-path ;
                    409: 
                    410: : fpath= ( "dir1|dir2|dir3" ) \ gforth
                    411:     \G Make a complete new Forth search path; the path separator is |.
                    412:     fpath path= ;
                    413: 
                    414: : path>counted  cell+ dup cell+ swap @ ;
                    415: 
                    416: : next-path ( adr len -- adr2 len2 )
                    417:   2dup 0 scan
                    418:   dup 0= IF     2drop 0 -rot 0 -rot EXIT THEN
                    419:   >r 1+ -rot r@ 1- -rot
                    420:   r> - ;
                    421: 
                    422: : previous-path ( path^ -- )
                    423:   dup path>counted
                    424:   BEGIN tuck dup WHILE repeat ;
                    425: 
                    426: : .path ( path-addr -- ) \ gforth
                    427:     \G Display the contents of the search path @var{path-addr}.
                    428:     path>counted
                    429:     BEGIN next-path dup WHILE type space REPEAT 2drop 2drop ;
                    430: 
                    431: : .fpath ( -- ) \ gforth
                    432:     \G Display the contents of the Forth search path.
                    433:     fpath .path ;
                    434: 
                    435: : absolut-path? ( addr u -- flag ) \ gforth
                    436:     \G A path is absolute if it starts with a / or a ~ (~ expansion),
                    437:     \G or if it is in the form ./*, extended regexp: ^[/~]|./, or if
                    438:     \G it has a colon as second character ("C:...").  Paths simply
                    439:     \G containing a / are not absolute!
                    440:     2dup 2 u> swap 1+ c@ [char] : = and >r \ dos absoulte: c:/....
                    441:     over c@ [char] / = >r
                    442:     over c@ [char] ~ = >r
                    443:     \ 2dup 3 min S" ../" compare 0= r> or >r \ not catered for in expandtopic
                    444:     2 min S" ./" compare 0=
                    445:     r> r> r> or or or ;
                    446: 
                    447: Create ofile 0 c, 255 chars allot
                    448: Create tfile 0 c, 255 chars allot
                    449: 
                    450: : pathsep? dup [char] / = swap [char] \ = or ;
                    451: 
                    452: : need/   ofile dup c@ + c@ pathsep? 0= IF s" /" ofile +place THEN ;
                    453: 
                    454: : extractpath ( adr len -- adr len2 )
                    455:   BEGIN dup WHILE 1-
                    456:         2dup + c@ pathsep? IF EXIT THEN
                    457:   REPEAT ;
                    458: 
                    459: : remove~+ ( -- )
                    460:     ofile count 3 min s" ~+/" compare 0=
                    461:     IF
                    462:        ofile count 3 /string ofile place
                    463:     THEN ;
                    464: 
                    465: : expandtopic ( -- ) \ stack effect correct? - anton
                    466:     \ expands "./" into an absolute name
                    467:     ofile count 2 min s" ./" compare 0=
                    468:     IF
                    469:        ofile count 1 /string tfile place
                    470:        0 ofile c! sourcefilename extractpath ofile place
                    471:        ofile c@ IF need/ THEN
                    472:        tfile count over c@ pathsep? IF 1 /string THEN
                    473:        ofile +place
                    474:     THEN ;
                    475: 
                    476: : compact.. ( adr len -- adr2 len2 )
                    477: \ deletes phrases like "xy/.." out of our directory name 2dec97jaw
                    478:   over >r -1 >r
                    479:   BEGIN dup WHILE
                    480:        over c@ pathsep? 
                    481:        IF      r@ -1 =
                    482:                IF      r> drop dup >r
                    483:                ELSE    2dup 1 /string 
                    484:                        3 min s" ../" compare
                    485:                        0=
                    486:                        IF      r@ over - ( diff )
                    487:                                2 pick swap - ( dest-adr )
                    488:                                >r 3 /string r> swap 2dup >r >r
                    489:                                move r> r>
                    490:                        ELSE    r> drop dup >r
                    491:                        THEN
                    492:                THEN
                    493:        THEN
                    494:        1 /string
                    495:   REPEAT 
                    496:   r> drop 
                    497:   drop r> tuck - ;
                    498: 
                    499: : reworkdir ( -- )
                    500:   remove~+
                    501:   ofile count compact..
                    502:   nip ofile c! ;
                    503: 
                    504: : open-ofile ( -- fid ior )
                    505:     \G opens the file whose name is in ofile
                    506:     expandtopic reworkdir
                    507:     ofile count r/o open-file ;
                    508: 
                    509: : check-path ( adr1 len1 adr2 len2 -- fd 0 | 0 <>0 )
                    510:   0 ofile ! >r >r ofile place need/
                    511:   r> r> ofile +place
                    512:   open-ofile ;
                    513: 
                    514: : open-path-file ( addr1 u1 path-addr -- wfileid addr2 u2 0 | ior ) \ gforth
                    515:     \G Look in path @var{path-addr} for the file specified by @var{addr1 u1}.
                    516:     \G If found, the resulting path and an open file descriptor
                    517:     \G are returned. If the file is not found, @var{ior} is non-zero.
                    518:   >r
                    519:   2dup absolut-path?
                    520:   IF    rdrop
                    521:         ofile place open-ofile
                    522:        dup 0= IF >r ofile count r> THEN EXIT
                    523:   ELSE  r> path>counted
                    524:         BEGIN  next-path dup
                    525:         WHILE  5 pick 5 pick check-path
                    526:         0= IF >r 2drop 2drop r> ofile count 0 EXIT ELSE drop THEN
                    527:   REPEAT
                    528:         2drop 2drop 2drop -38
                    529:   THEN ;
                    530: 
                    531: : open-fpath-file ( addr1 u1 -- wfileid addr2 u2 0 | ior ) \ gforth
                    532:     \G Look in the Forth search path for the file specified by @var{addr1 u1}.
                    533:     \G If found, the resulting path and an open file descriptor
                    534:     \G are returned. If the file is not found, @var{ior} is non-zero.
                    535:     fpath open-path-file ;
                    536: 
                    537: fpath= ~+
                    538: 
                    539: [THEN]
                    540: 
                    541: \ \ --------------------       include require                 13may99jaw
                    542: 
                    543: >CROSS
                    544: 
                    545: : add-included-file ( adr len -- adr )
                    546:   dup >fl-name char+ allocate throw >r
                    547:   file-list @ r@ ! r@ file-list !
                    548:   r@ >fl-name place r> ;
                    549: 
                    550: : included? ( c-addr u -- f )
                    551:   file-list
                    552:   BEGIN        @ dup
                    553:   WHILE        >r 2dup r@ >fl-name count compare 0=
                    554:        IF rdrop 2drop true EXIT THEN
                    555:        r>
                    556:   REPEAT
                    557:   2drop drop false ;   
                    558: 
                    559: false DebugFlag showincludedfiles
                    560: 
                    561: : included1 ( fd adr u -- )
                    562: \ include file adr u / fd
                    563: \ we don't use fd with include-file, because the forth system
                    564: \ doesn't know the name of the file to get a nice error report
                    565:   [d?] showincludedfiles
                    566:   IF   cr ." Including: " 2dup type ." ..." THEN
                    567:   rot close-file throw
                    568:   source-desc >r
                    569:   add-included-file to source-desc 
                    570:   sourcefilename
                    571:   ['] included catch
                    572:   r> to source-desc 
                    573:   throw ;
                    574: 
                    575: : included ( adr len -- )
                    576:        cross-file-list to file-list
                    577:        open-fpath-file throw 
                    578:         included1 ;
                    579: 
                    580: : required ( adr len -- )
                    581:        cross-file-list to file-list
                    582:        open-fpath-file throw \ 2dup cr ." R:" type
                    583:        2dup included?
                    584:        IF      2drop close-file throw
                    585:        ELSE    included1
                    586:        THEN ;
                    587: 
                    588: : include bl word count included ;
                    589: 
                    590: : require bl word count required ;
                    591: 
1.78      jwilke    592: 0 [IF]
                    593: 
1.77      jwilke    594: also forth definitions previous
                    595: 
                    596: : included ( adr len -- ) included ;
                    597: 
                    598: : required ( adr len -- ) required ;
                    599: 
                    600: : include include ;
                    601: 
                    602: : require require ;
                    603: 
1.78      jwilke    604: [THEN]
                    605: 
1.77      jwilke    606: >CROSS
                    607: hex
                    608: 
                    609: \ \ --------------------        Error Handling                  05aug97jaw
                    610: 
                    611: \ Flags
                    612: 
                    613: also forth definitions  \ these values may be predefined before
                    614:                         \ the cross-compiler is loaded
                    615: 
                    616: false DefaultValue stack-warn           \ check on empty stack at any definition
                    617: false DefaultValue create-forward-warn   \ warn on forward declaration of created words
                    618: 
                    619: previous >CROSS
                    620: 
                    621: : .dec
                    622:   base @ decimal swap . base ! ;
                    623: 
                    624: : .sourcepos
                    625:   cr sourcefilename type ." :"
                    626:   sourceline# .dec ;
                    627: 
                    628: : warnhead
                    629: \G display error-message head
                    630: \G perhaps with linenumber and filename
                    631:   .sourcepos ." Warning: " ;
                    632: 
                    633: : empty? depth IF .sourcepos ." Stack not empty!"  THEN ;
                    634: 
                    635: stack-warn [IF]
                    636: : defempty? empty? ;
                    637: [ELSE]
                    638: : defempty? ; immediate
                    639: [THEN]
                    640: 
1.52      jwilke    641: \ \ GhostNames Ghosts                                  9may93jaw
                    642: 
                    643: \ second name source to search trough list
                    644: 
                    645: VARIABLE GhostNames
                    646: 0 GhostNames !
                    647: 
                    648: : GhostName ( -- addr )
1.79      jwilke    649:     align here GhostNames @ , GhostNames ! here 0 ,
1.52      jwilke    650:     bl word count
                    651:     \ 2dup type space
                    652:     string, \ !! cfalign ?
                    653:     align ;
                    654: 
                    655: \ Ghost Builder                                        06oct92py
                    656: 
                    657: \ <T T> new version with temp variable                 10may93jaw
                    658: 
                    659: VARIABLE VocTemp
                    660: 
                    661: : <T  get-current VocTemp ! also Ghosts definitions ;
                    662: : T>  previous VocTemp @ set-current ;
                    663: 
                    664: hex
                    665: 4711 Constant <fwd>             4712 Constant <res>
                    666: 4713 Constant <imm>             4714 Constant <do:>
1.75      jwilke    667: 4715 Constant <skip>
1.52      jwilke    668: 
                    669: \ iForth makes only immediate directly after create
                    670: \ make atonce trick! ?
                    671: 
                    672: Variable atonce atonce off
                    673: 
1.76      jwilke    674: : NoExec true ABORT" CROSS: Don't execute ghost, or immediate target word" ;
1.52      jwilke    675: 
                    676: : GhostHeader <fwd> , 0 , ['] NoExec , ;
                    677: 
                    678: : >magic ;             \ type of ghost
                    679: : >link cell+ ;                \ pointer where ghost is in target, or if unresolved
                    680:                        \ points to the where we have to resolve (linked-list)
                    681: : >exec cell+ cell+ ;  \ execution symantics (while target compiling) of ghost
                    682: : >end 3 cells + ;     \ room for additional tags
                    683:                        \ for builder (create, variable...) words the
                    684:                        \ execution symantics of words built are placed here
                    685: 
                    686: Variable executed-ghost \ last executed ghost, needed in tcreate and gdoes>
                    687: Variable last-ghost    \ last ghost that is created
                    688: Variable last-header-ghost \ last ghost definitions with header
                    689: 
                    690: : Make-Ghost ( "name" -- ghost )
                    691:   >in @ GhostName swap >in !
                    692:   <T Create atonce @ IF immediate atonce off THEN
                    693:   here tuck swap ! ghostheader T>
                    694:   dup last-ghost !
                    695:   DOES> dup executed-ghost ! >exec @ execute ;
                    696: 
                    697: \ ghost words                                          14oct92py
                    698: \                                          changed:    10may93py/jaw
                    699: 
                    700: : gfind   ( string -- ghost true/1 / string false )
                    701: \ searches for string in word-list ghosts
1.77      jwilke    702:   dup count [ ' ghosts >wordlist ] Literal search-wordlist
1.52      jwilke    703:   dup IF >r >body nip r>  THEN ;
                    704: 
                    705: : gdiscover ( xt -- ghost true | xt false )
                    706:   GhostNames
                    707:   BEGIN @ dup
                    708:   WHILE 2dup
                    709:         cell+ @ dup >magic @ <fwd> <>
                    710:         >r >link @ = r> and
                    711:         IF cell+ @ nip true EXIT THEN
                    712:   REPEAT
                    713:   drop false ;
                    714: 
                    715: VARIABLE Already
                    716: 
                    717: : ghost   ( "name" -- ghost )
                    718:   Already off
1.76      jwilke    719:   >in @  bl word gfind   IF  atonce off Already on nip EXIT  THEN
1.52      jwilke    720:   drop  >in !  Make-Ghost ;
                    721: 
                    722: : >ghostname ( ghost -- adr len )
                    723:   GhostNames
                    724:   BEGIN @ dup
                    725:   WHILE 2dup cell+ @ =
                    726:   UNTIL nip 2 cells + count
1.54      pazsan    727:   ELSE  2drop 
                    728:        \ true abort" CROSS: Ghostnames inconsistent"
                    729:        s" ?!?!?!"
1.52      jwilke    730:   THEN ;
                    731: 
1.78      jwilke    732: : .ghost ( ghost -- ) >ghostname type ;
                    733: 
1.77      jwilke    734: \ ' >ghostname ALIAS @name
1.52      jwilke    735: 
                    736: : forward? ( ghost -- flag )
                    737:   >magic @ <fwd> = ;
                    738: 
1.75      jwilke    739: : undefined? ( ghost -- flag )
                    740:   >magic @ dup <fwd> = swap <skip> = or ;
                    741: 
1.52      jwilke    742: \ Predefined ghosts                                    12dec92py
                    743: 
                    744: ghost 0=                                        drop
                    745: ghost branch    ghost ?branch                   2drop
                    746: ghost (do)      ghost (?do)                     2drop
                    747: ghost (for)                                     drop
                    748: ghost (loop)    ghost (+loop)                   2drop
                    749: ghost (next)                                    drop
                    750: ghost unloop    ghost ;S                        2drop
                    751: ghost lit       ghost (compile) ghost !         2drop drop
                    752: ghost (does>)   ghost noop                      2drop
                    753: ghost (.")      ghost (S")      ghost (ABORT")  2drop drop
                    754: ghost '                                         drop
                    755: ghost :docol    ghost :doesjump ghost :dodoes   2drop drop
1.54      pazsan    756: ghost :dovar                                   drop
1.52      jwilke    757: ghost over      ghost =         ghost drop      2drop drop
                    758: ghost - drop
1.54      pazsan    759: ghost 2drop drop
                    760: ghost 2dup drop
1.52      jwilke    761: 
                    762: \ \ Parameter for target systems                         06oct92py
                    763: 
                    764: \ we define it ans like...
                    765: wordlist Constant target-environment
                    766: 
                    767: VARIABLE env-current \ save information of current dictionary to restore with environ>
                    768: 
                    769: : >ENVIRON get-current env-current ! target-environment set-current ;
                    770: : ENVIRON> env-current @ set-current ; 
1.43      pazsan    771: 
1.48      anton     772: >TARGET
1.43      pazsan    773: 
1.67      jwilke    774: : environment? ( adr len -- [ x ] true | false )
1.52      jwilke    775:   target-environment search-wordlist 
                    776:   IF execute true ELSE false THEN ;
                    777: 
1.67      jwilke    778: : e? bl word count T environment? H 0= ABORT" environment variable not defined!" ;
1.52      jwilke    779: 
1.67      jwilke    780: : has?         bl word count T environment? H 
1.53      jwilke    781:        IF      \ environment variable is present, return its value
                    782:        ELSE    \ environment variable is not present, return false
1.75      jwilke    783:                false \ debug true ABORT" arg" 
1.53      jwilke    784:        THEN ;
1.52      jwilke    785: 
                    786: : $has? T environment? H IF ELSE false THEN ;
1.48      anton     787: 
1.54      pazsan    788: >ENVIRON get-order get-current swap 1+ set-order
                    789: true SetValue compiler
1.83      pazsan    790: true SetValue cross
1.54      pazsan    791: true SetValue standard-threading
                    792: >TARGET previous
1.52      jwilke    793: 
1.77      jwilke    794: 0
                    795: [IFDEF] mach-file mach-file count 1 [THEN]
                    796: [IFDEF] machine-file machine-file 1 [THEN]
                    797: [IF]   included hex drop
                    798: [ELSE]  cr ." No machine description!" ABORT 
                    799: [THEN]
1.43      pazsan    800: 
1.53      jwilke    801: >ENVIRON
                    802: 
1.54      pazsan    803: T has? ec H
                    804: [IF]
                    805: false DefaultValue relocate
                    806: false DefaultValue file
                    807: false DefaultValue OS
                    808: false DefaultValue prims
                    809: false DefaultValue floating
                    810: false DefaultValue glocals
                    811: false DefaultValue dcomps
                    812: false DefaultValue hash
                    813: false DefaultValue xconds
                    814: false DefaultValue header
                    815: [THEN]
                    816: 
                    817: true DefaultValue interpreter
                    818: true DefaultValue ITC
                    819: false DefaultValue rom
1.73      jwilke    820: true DefaultValue standardthreading
1.53      jwilke    821: 
1.52      jwilke    822: >TARGET
1.53      jwilke    823: s" relocate" T environment? H 
                    824: [IF]   SetValue NIL
                    825: [ELSE] >ENVIRON T NIL H SetValue relocate
                    826: [THEN]
1.43      pazsan    827: 
                    828: >CROSS
                    829: 
1.52      jwilke    830: \ \ Create additional parameters                         19jan95py
1.19      pazsan    831: 
1.71      jwilke    832: \ currently cross only works for host machines with address-unit-bits
                    833: \ eual to 8 because of s! and sc!
                    834: \ but I start to query the environment just to modularize a little bit
                    835: 
                    836: : check-address-unit-bits ( -- )       
                    837: \      s" ADDRESS-UNIT-BITS" environment?
                    838: \      IF 8 <> ELSE true THEN
                    839: \      ABORT" ADDRESS-UNIT-BITS unknown or not equal to 8!"
                    840: 
                    841: \      shit, this doesn't work because environment? is only defined for 
                    842: \      gforth.fi and not kernl???.fi
                    843:        ;
                    844: 
                    845: check-address-unit-bits
                    846: 8 Constant bits/byte   \ we define: byte is address-unit
                    847: 
                    848: 1 bits/byte lshift Constant maxbyte 
1.77      jwilke    849: \ this sets byte size for the target machine, (probably right guess) jaw
1.67      jwilke    850: 
1.19      pazsan    851: T
1.71      jwilke    852: NIL                    Constant TNIL
                    853: cell                   Constant tcell
                    854: cell<<                 Constant tcell<<
                    855: cell>bit               Constant tcell>bit
                    856: bits/char              Constant tbits/char
                    857: bits/char H bits/byte T /      
                    858:                        Constant tchar
                    859: float                  Constant tfloat
                    860: 1 bits/char lshift     Constant tmaxchar
                    861: [IFUNDEF] bits/byte
                    862: 8                      Constant tbits/byte
                    863: [ELSE]
                    864: bits/byte              Constant tbits/byte
                    865: [THEN]
1.19      pazsan    866: H
1.81      pazsan    867: tbits/char bits/byte / Constant tbyte
1.71      jwilke    868: 
1.19      pazsan    869: 
1.48      anton     870: \ Variables                                            06oct92py
                    871: 
                    872: Variable image
                    873: Variable tlast    TNIL tlast !  \ Last name field
                    874: Variable tlastcfa \ Last code field
                    875: Variable tdoes    \ Resolve does> calls
                    876: Variable bit$
1.52      jwilke    877: 
                    878: \ statistics                                           10jun97jaw
                    879: 
                    880: Variable headers-named 0 headers-named !
                    881: Variable user-vars 0 user-vars !
                    882: 
1.67      jwilke    883: : target>bitmask-size ( u1 -- u2 )
                    884:   1- tcell>bit rshift 1+ ;
                    885: 
                    886: : allocatetarget ( size --- adr )
                    887:   dup allocate ABORT" CROSS: No memory for target"
                    888:   swap over swap erase ;
1.52      jwilke    889: 
1.54      pazsan    890: \ \ memregion.fs
1.52      jwilke    891: 
                    892: 
                    893: Variable last-defined-region    \ pointer to last defined region
                    894: Variable region-link            \ linked list with all regions
                    895: Variable mirrored-link          \ linked list for mirrored regions
                    896: 0 dup mirrored-link ! region-link !
                    897: 
                    898: 
1.67      jwilke    899: : >rname 6 cells + ;
                    900: : >rbm   5 cells + ;
                    901: : >rmem  4 cells + ;
                    902: : >rlink 3 cells + ;
1.52      jwilke    903: : >rdp 2 cells + ;
                    904: : >rlen cell+ ;
                    905: : >rstart ;
                    906: 
                    907: 
                    908: : region ( addr len -- )                \G create a new region
                    909:   \ check whether predefined region exists 
                    910:   save-input bl word find >r >r restore-input throw r> r> 0= 
                    911:   IF   \ make region
                    912:        drop
                    913:        save-input create restore-input throw
                    914:        here last-defined-region !
                    915:        over ( startaddr ) , ( length ) , ( dp ) ,
1.67      jwilke    916:        region-link linked 0 , 0 , bl word count string,
1.52      jwilke    917:   ELSE \ store new parameters in region
                    918:         bl word drop
                    919:        >body >r r@ last-defined-region !
1.67      jwilke    920:        r@ >rlen ! dup r@ >rstart ! r> >rdp !
1.52      jwilke    921:   THEN ;
                    922: 
                    923: : borders ( region -- startaddr endaddr ) \G returns lower and upper region border
1.67      jwilke    924:   dup >rstart @ swap >rlen @ over + ;
1.52      jwilke    925: 
                    926: : extent  ( region -- startaddr len )   \G returns the really used area
1.67      jwilke    927:   dup >rstart @ swap >rdp @ over - ;
1.52      jwilke    928: 
                    929: : area ( region -- startaddr totallen ) \G returns the total area
1.79      jwilke    930:   dup >rstart @ swap >rlen @ ;
1.52      jwilke    931: 
                    932: : mirrored                              \G mark a region as mirrored
                    933:   mirrored-link
1.68      jwilke    934:   align linked last-defined-region @ , ;
1.52      jwilke    935: 
1.67      jwilke    936: : .addr ( u -- )
                    937: \G prints a 16 or 32 Bit nice hex value
1.52      jwilke    938:   base @ >r hex
                    939:   tcell 2 u>
1.77      jwilke    940:   IF s>d <# # # # # [char] . hold # # # # #> type
1.52      jwilke    941:   ELSE s>d <# # # # # # #> type
                    942:   THEN r> base ! ;
                    943: 
                    944: : .regions                      \G display region statistic
                    945: 
                    946:   \ we want to list the regions in the right order
                    947:   \ so first collect all regions on stack
                    948:   0 region-link @
                    949:   BEGIN dup WHILE dup @ REPEAT drop
                    950:   BEGIN dup
1.67      jwilke    951:   WHILE cr
                    952:         0 >rlink - >r
                    953:         r@ >rname count tuck type
1.52      jwilke    954:         12 swap - 0 max spaces space
1.67      jwilke    955:         ." Start: " r@ >rstart @ dup .addr space
                    956:         ." End: " r@ >rlen @ + .addr space
                    957:         ." DP: " r> >rdp @ .addr
1.52      jwilke    958:   REPEAT drop
1.53      jwilke    959:   s" rom" T $has? H 0= ?EXIT
1.52      jwilke    960:   cr ." Mirrored:"
                    961:   mirrored-link @
                    962:   BEGIN dup
1.67      jwilke    963:   WHILE space dup cell+ @ >rname count type @
1.52      jwilke    964:   REPEAT drop cr
                    965:   ;
                    966: 
                    967: \ -------- predefined regions
                    968: 
                    969: 0 0 region address-space
                    970: \ total memory addressed and used by the target system
                    971: 
                    972: 0 0 region dictionary
                    973: \ rom area for the compiler
                    974: 
1.53      jwilke    975: T has? rom H
1.52      jwilke    976: [IF]
                    977: 0 0 region ram-dictionary mirrored
                    978: \ ram area for the compiler
                    979: [ELSE]
                    980: ' dictionary ALIAS ram-dictionary
                    981: [THEN]
                    982: 
                    983: 0 0 region return-stack
                    984: 
                    985: 0 0 region data-stack
                    986: 
                    987: 0 0 region tib-region
                    988: 
                    989: ' dictionary ALIAS rom-dictionary
                    990: 
                    991: 
                    992: : setup-target ( -- )   \G initialize targets memory space
1.53      jwilke    993:   s" rom" T $has? H
1.52      jwilke    994:   IF  \ check for ram and rom...
1.72      jwilke    995:       \ address-space area nip 0<>
1.67      jwilke    996:       ram-dictionary area nip 0<>
                    997:       rom-dictionary area nip 0<>
1.72      jwilke    998:       and 0=
1.52      jwilke    999:       ABORT" CROSS: define address-space, rom- , ram-dictionary, with rom-support!"
                   1000:   THEN
                   1001:   address-space area nip
                   1002:   IF
                   1003:       address-space area
                   1004:   ELSE
                   1005:       dictionary area
                   1006:   THEN
1.67      jwilke   1007:   nip 0=
1.52      jwilke   1008:   ABORT" CROSS: define at least address-space or dictionary!!"
1.67      jwilke   1009: 
                   1010:   \ allocate target for each region
                   1011:   region-link
                   1012:   BEGIN @ dup
                   1013:   WHILE dup
                   1014:         0 >rlink - >r
                   1015:         r@ >rlen @
                   1016:         IF      \ allocate mem
                   1017:                 r@ >rlen @ dup
                   1018: 
                   1019:                 allocatetarget dup image !
                   1020:                 r@ >rmem !
                   1021: 
                   1022:                 target>bitmask-size allocatetarget
1.72      jwilke   1023:                 dup bit$ !
1.67      jwilke   1024:                 r> >rbm !
                   1025: 
                   1026:         ELSE    r> drop THEN
1.72      jwilke   1027:    REPEAT drop ;
                   1028: 
                   1029: \ MakeKernal                                                           22feb99jaw
                   1030: 
                   1031: : makekernel ( targetsize -- targetsize )
                   1032:   dup dictionary >rlen ! setup-target ;
                   1033: 
                   1034: >MINIMAL
                   1035: : makekernel makekernel ;
                   1036: >CROSS
1.52      jwilke   1037: 
1.54      pazsan   1038: \ \ switched tdp for rom support                               03jun97jaw
1.52      jwilke   1039: 
                   1040: \ second value is here to store some maximal value for statistics
                   1041: \ tempdp is also embedded here but has nothing to do with rom support
                   1042: \ (needs switched dp)
                   1043: 
                   1044: variable tempdp        0 ,     \ temporary dp for resolving
                   1045: variable tempdp-save
                   1046: 
                   1047: 0 [IF]
                   1048: variable romdp 0 ,      \ Dictionary-Pointer for ramarea
                   1049: variable ramdp 0 ,      \ Dictionary-Pointer for romarea
                   1050: 
                   1051: \
                   1052: variable sramdp                \ start of ram-area for forth
                   1053: variable sromdp                \ start of rom-area for forth
                   1054: 
                   1055: [THEN]
                   1056: 
                   1057: 
                   1058: 0 value tdp
                   1059: variable fixed         \ flag: true: no automatic switching
                   1060:                        \       false: switching is done automatically
                   1061: 
                   1062: \ Switch-Policy:
                   1063: \
                   1064: \ a header is always compiled into rom
                   1065: \ after a created word (create and variable) compilation goes to ram
                   1066: \
                   1067: \ Be careful: If you want to make the data behind create into rom
                   1068: \ you have to put >rom before create!
                   1069: 
                   1070: variable constflag constflag off
                   1071: 
1.67      jwilke   1072: : activate ( region -- )
                   1073: \G next code goes to this region
                   1074:   >rdp to tdp ;
                   1075: 
1.52      jwilke   1076: : (switchram)
1.53      jwilke   1077:   fixed @ ?EXIT s" rom" T $has? H 0= ?EXIT
1.67      jwilke   1078:   ram-dictionary activate ;
1.52      jwilke   1079: 
                   1080: : switchram
                   1081:   constflag @
                   1082:   IF constflag off ELSE (switchram) THEN ;
                   1083: 
                   1084: : switchrom
1.67      jwilke   1085:   fixed @ ?EXIT rom-dictionary activate ;
1.52      jwilke   1086: 
                   1087: : >tempdp ( addr -- ) 
                   1088:   tdp tempdp-save ! tempdp to tdp tdp ! ;
                   1089: : tempdp> ( -- )
                   1090:   tempdp-save @ to tdp ;
                   1091: 
                   1092: : >ram  fixed off (switchram) fixed on ;
                   1093: : >rom  fixed off switchrom fixed on ;
                   1094: : >auto fixed off switchrom ;
                   1095: 
                   1096: 
                   1097: 
                   1098: \ : romstart dup sromdp ! romdp ! ;
                   1099: \ : ramstart dup sramdp ! ramdp ! ;
                   1100: 
1.67      jwilke   1101: \ default compilation goes to rom
1.52      jwilke   1102: \ when romable support is off, only the rom switch is used (!!)
                   1103: >auto
                   1104: 
1.48      anton    1105: : there  tdp @ ;
                   1106: 
1.52      jwilke   1107: >TARGET
1.48      anton    1108: 
1.52      jwilke   1109: \ \ Target Memory Handling
1.1       anton    1110: 
                   1111: \ Byte ordering and cell size                          06oct92py
                   1112: 
1.19      pazsan   1113: : cell+         tcell + ;
                   1114: : cells         tcell<< lshift ;
1.71      jwilke   1115: : chars         tchar * ;
                   1116: : char+                tchar + ;
1.19      pazsan   1117: : floats       tfloat * ;
1.6       anton    1118:     
1.1       anton    1119: >CROSS
1.19      pazsan   1120: : cell/         tcell<< rshift ;
1.1       anton    1121: >TARGET
                   1122: 20 CONSTANT bl
1.52      jwilke   1123: \ TNIL Constant NIL
1.1       anton    1124: 
                   1125: >CROSS
                   1126: 
1.20      pazsan   1127: bigendian
                   1128: [IF]
1.52      jwilke   1129:    : S!  ( n addr -- )  >r s>d r> tcell bounds swap 1-
1.20      pazsan   1130:      DO  maxbyte ud/mod rot I c!  -1 +LOOP  2drop ;
1.52      jwilke   1131:    : S@  ( addr -- n )  >r 0 0 r> tcell bounds
1.20      pazsan   1132:      DO  maxbyte * swap maxbyte um* rot + swap I c@ + swap  LOOP d>s ;
1.57      pazsan   1133:    : Sc!  ( n addr -- )  >r s>d r> tchar bounds swap 1-
                   1134:      DO  maxbyte ud/mod rot I c!  -1 +LOOP  2drop ;
                   1135:    : Sc@  ( addr -- n )  >r 0 0 r> tchar bounds
                   1136:      DO  maxbyte * swap maxbyte um* rot + swap I c@ + swap  LOOP d>s ;
1.19      pazsan   1137: [ELSE]
1.52      jwilke   1138:    : S!  ( n addr -- )  >r s>d r> tcell bounds
1.20      pazsan   1139:      DO  maxbyte ud/mod rot I c!  LOOP  2drop ;
1.52      jwilke   1140:    : S@  ( addr -- n )  >r 0 0 r> tcell bounds swap 1-
1.20      pazsan   1141:      DO  maxbyte * swap maxbyte um* rot + swap I c@ + swap  -1 +LOOP d>s ;
1.57      pazsan   1142:    : Sc!  ( n addr -- )  >r s>d r> tchar bounds
                   1143:      DO  maxbyte ud/mod rot I c!  LOOP  2drop ;
                   1144:    : Sc@  ( addr -- n )  >r 0 0 r> tchar bounds swap 1-
                   1145:      DO  maxbyte * swap maxbyte um* rot + swap I c@ + swap  -1 +LOOP d>s ;
1.1       anton    1146: [THEN]
                   1147: 
1.67      jwilke   1148: : taddr>region ( taddr -- region | 0 )
                   1149: \G finds for a target-address the correct region
                   1150: \G returns 0 if taddr is not in range of a target memory region
                   1151:   region-link
                   1152:   BEGIN @ dup
                   1153:   WHILE dup >r
                   1154:         0 >rlink - >r
                   1155:         r@ >rlen @
                   1156:         IF      dup r@ borders within
                   1157:                 IF r> r> drop nip EXIT THEN
                   1158:         THEN
                   1159:         r> drop
                   1160:         r>
                   1161:   REPEAT
                   1162:   2drop 0 ;
                   1163: 
                   1164: : (>regionimage) ( taddr -- 'taddr )
                   1165:   dup
                   1166:   \ find region we want to address
                   1167:   taddr>region dup 0= ABORT" Address out of range!"
                   1168:   >r
                   1169:   \ calculate offset in region
                   1170:   r@ >rstart @ -
                   1171:   \ add regions real address in our memory
                   1172:   r> >rmem @ + ;
                   1173: 
1.1       anton    1174: \ Bit string manipulation                               06oct92py
                   1175: \                                                       9may93jaw
                   1176: CREATE Bittable 80 c, 40 c, 20 c, 10 c, 8 c, 4 c, 2 c, 1 c,
                   1177: : bits ( n -- n ) chars Bittable + c@ ;
                   1178: 
                   1179: : >bit ( addr n -- c-addr mask ) 8 /mod rot + swap bits ;
                   1180: : +bit ( addr n -- )  >bit over c@ or swap c! ;
1.4       pazsan   1181: : -bit ( addr n -- )  >bit invert over c@ and swap c! ;
1.67      jwilke   1182: 
1.84    ! jwilke   1183: : (relon) ( taddr -- )  
        !          1184:   [ [IFDEF] fd-relocation-table ]
        !          1185:   s" +" fd-relocation-table write-file throw
        !          1186:   dup s>d <# #s #> fd-relocation-table write-line throw
        !          1187:   [ [THEN] ]
        !          1188:   bit$ @ swap cell/ +bit ;
        !          1189: 
        !          1190: : (reloff) ( taddr -- ) 
        !          1191:   [ [IFDEF] fd-relocation-table ]
        !          1192:   s" -" fd-relocation-table write-file throw
        !          1193:   dup s>d <# #s #> fd-relocation-table write-line throw
        !          1194:   [ [THEN] ]
        !          1195:   bit$ @ swap cell/ -bit ;
1.67      jwilke   1196: 
                   1197: : (>image) ( taddr -- absaddr ) image @ + ;
                   1198: 
                   1199: DEFER >image
                   1200: DEFER relon
                   1201: DEFER reloff
                   1202: DEFER correcter
                   1203: 
                   1204: T has? relocate H
                   1205: [IF]
                   1206: ' (relon) IS relon
                   1207: ' (reloff) IS reloff
                   1208: ' (>image) IS >image
                   1209: [ELSE]
                   1210: ' drop IS relon
                   1211: ' drop IS reloff
1.68      jwilke   1212: ' (>regionimage) IS >image
1.67      jwilke   1213: [THEN]
1.1       anton    1214: 
                   1215: \ Target memory access                                 06oct92py
                   1216: 
                   1217: : align+  ( taddr -- rest )
1.48      anton    1218:     tcell tuck 1- and - [ tcell 1- ] Literal and ;
1.22      anton    1219: : cfalign+  ( taddr -- rest )
1.39      pazsan   1220:     \ see kernel.fs:cfaligned
1.43      pazsan   1221:     /maxalign tuck 1- and - [ /maxalign 1- ] Literal and ;
1.1       anton    1222: 
                   1223: >TARGET
                   1224: : aligned ( taddr -- ta-addr )  dup align+ + ;
                   1225: \ assumes cell alignment granularity (as GNU C)
                   1226: 
1.22      anton    1227: : cfaligned ( taddr1 -- taddr2 )
1.39      pazsan   1228:     \ see kernel.fs
1.22      anton    1229:     dup cfalign+ + ;
                   1230: 
1.52      jwilke   1231: : @  ( taddr -- w )     >image S@ ;
                   1232: : !  ( w taddr -- )     >image S! ;
1.57      pazsan   1233: : c@ ( taddr -- char )  >image Sc@ ;
                   1234: : c! ( char taddr -- )  >image Sc! ;
1.7       anton    1235: : 2@ ( taddr -- x1 x2 ) T dup cell+ @ swap @ H ;
1.82      pazsan   1236: : 2! ( x1 x2 taddr -- ) T tuck ! cell+ ! H ;
1.1       anton    1237: 
                   1238: \ Target compilation primitives                        06oct92py
                   1239: \ included A!                                          16may93jaw
                   1240: 
                   1241: : here  ( -- there )    there ;
                   1242: : allot ( n -- )        tdp +! ;
1.78      jwilke   1243: : ,     ( w -- )        T here H tcell T allot  ! H ;
                   1244: : c,    ( char -- )     T here H tchar T allot c! H ;
                   1245: : align ( -- )          T here H align+ 0 ?DO  bl T c, H tchar +LOOP ;
1.22      anton    1246: : cfalign ( -- )
1.78      jwilke   1247:     T here H cfalign+ 0 ?DO  bl T c, H tchar +LOOP ;
1.1       anton    1248: 
1.71      jwilke   1249: : >address             dup 0>= IF tbyte / THEN ; \ ?? jaw 
1.59      pazsan   1250: : A!                    swap >address swap dup relon T ! H ;
                   1251: : A,    ( w -- )        >address T here H relon T , H ;
1.1       anton    1252: 
                   1253: >CROSS
                   1254: 
1.52      jwilke   1255: : tcmove ( source dest len -- )
                   1256: \G cmove in target memory
1.57      pazsan   1257:   tchar * bounds
1.52      jwilke   1258:   ?DO  dup T c@ H I T c! H 1+
1.57      pazsan   1259:   tchar +LOOP  drop ;
1.1       anton    1260: 
1.67      jwilke   1261: \ \ Load Assembler
                   1262: 
1.1       anton    1263: >TARGET
1.74      jwilke   1264: H also Forth definitions
1.1       anton    1265: 
1.77      jwilke   1266: : X    bl word count [ ' target >wordlist ] Literal search-wordlist
1.52      jwilke   1267:        IF      state @ IF compile,
                   1268:                ELSE execute THEN
1.77      jwilke   1269:        ELSE    -1 ABORT" Cross: access method not supported!"
                   1270:        THEN ; immediate
1.1       anton    1271: 
1.52      jwilke   1272: [IFDEF] asm-include asm-include [THEN] hex
1.1       anton    1273: 
1.52      jwilke   1274: previous
                   1275: >CROSS H
1.1       anton    1276: 
1.52      jwilke   1277: \ \ --------------------        Compiler Plug Ins               01aug97jaw
1.1       anton    1278: 
1.54      pazsan   1279: \  Compiler States
                   1280: 
                   1281: Variable comp-state
                   1282: 0 Constant interpreting
                   1283: 1 Constant compiling
                   1284: 2 Constant resolving
                   1285: 3 Constant assembling
                   1286: 
1.52      jwilke   1287: Defer lit, ( n -- )
                   1288: Defer alit, ( n -- )
1.54      pazsan   1289: 
                   1290: Defer branch, ( target-addr -- )       \ compiles a branch
                   1291: Defer ?branch, ( target-addr -- )      \ compiles a ?branch
                   1292: Defer branchmark, ( -- branch-addr )   \ reserves room for a branch
                   1293: Defer ?branchmark, ( -- branch-addr )  \ reserves room for a ?branch
                   1294: Defer ?domark, ( -- branch-addr )      \ reserves room for a ?do branch
                   1295: Defer branchto, ( -- )                 \ actual program position is target of a branch (do e.g. alignment)
                   1296: Defer branchtoresolve, ( branch-addr -- ) \ resolves a forward reference from branchmark
                   1297: Defer branchfrom, ( -- )               \ ?!
                   1298: Defer branchtomark, ( -- target-addr ) \ marks a branch destination
                   1299: 
1.52      jwilke   1300: Defer colon, ( tcfa -- )               \ compiles call to tcfa at current position
1.54      pazsan   1301: Defer colonmark, ( -- addr )           \ marks a colon call
1.52      jwilke   1302: Defer colon-resolve ( tcfa addr -- )
1.54      pazsan   1303: 
1.52      jwilke   1304: Defer addr-resolve ( target-addr addr -- )
1.54      pazsan   1305: Defer doer-resolve ( ghost res-pnt target-addr addr -- ghost res-pnt )
                   1306: 
                   1307: Defer do,      ( -- do-token )
                   1308: Defer ?do,     ( -- ?do-token )
                   1309: Defer for,     ( -- for-token )
                   1310: Defer loop,    ( do-token / ?do-token -- )
                   1311: Defer +loop,   ( do-token / ?do-token -- )
                   1312: Defer next,    ( for-token )
1.1       anton    1313: 
1.52      jwilke   1314: [IFUNDEF] ca>native
                   1315: defer ca>native        
                   1316: [THEN]
1.1       anton    1317: 
1.52      jwilke   1318: >TARGET
                   1319: DEFER >body             \ we need the system >body
                   1320:                        \ and the target >body
                   1321: >CROSS
                   1322: T 2 cells H VALUE xt>body
1.54      pazsan   1323: DEFER doprim,  \ compiles start of a primitive
                   1324: DEFER docol,           \ compiles start of a colon definition
1.52      jwilke   1325: DEFER doer,            
                   1326: DEFER fini,      \ compiles end of definition ;s
                   1327: DEFER doeshandler,
                   1328: DEFER dodoes,
                   1329: 
                   1330: DEFER ]comp     \ starts compilation
                   1331: DEFER comp[     \ ends compilation
                   1332: 
1.54      pazsan   1333: : (cc) T a, H ;                                        ' (cc) IS colon,
                   1334: 
                   1335: : (cr) >tempdp ]comp colon, comp[ tempdp> ;    ' (cr) IS colon-resolve
                   1336: : (ar) T ! H ;                                 ' (ar) IS addr-resolve
                   1337: : (dr)  ( ghost res-pnt target-addr addr )
                   1338:        >tempdp drop over 
                   1339:        dup >magic @ <do:> =
                   1340:        IF      doer,
                   1341:        ELSE    dodoes,
                   1342:        THEN 
                   1343:        tempdp> ;                               ' (dr) IS doer-resolve
                   1344: 
                   1345: : (cm) ( -- addr )
                   1346:     T here align H
                   1347:     -1 colon, ;                                        ' (cm) IS colonmark,
1.1       anton    1348: 
1.52      jwilke   1349: >TARGET
                   1350: : compile, colon, ;
                   1351: >CROSS
1.1       anton    1352: 
1.52      jwilke   1353: \ resolve structure
1.1       anton    1354: 
1.52      jwilke   1355: : >next ;              \ link to next field
1.54      pazsan   1356: : >tag cell+ ;         \ indecates type of reference: 0: call, 1: address, 2: doer
1.53      jwilke   1357: : >taddr cell+ cell+ ; 
1.52      jwilke   1358: : >ghost 3 cells + ;
1.53      jwilke   1359: : >file 4 cells + ;
                   1360: : >line 5 cells + ;
1.48      anton    1361: 
1.54      pazsan   1362: : (refered) ( ghost addr tag -- )
                   1363: \G creates a reference to ghost at address taddr
                   1364:     rot >r here r@ >link @ , r> >link ! 
                   1365:     ( taddr tag ) ,
                   1366:     ( taddr ) , 
                   1367:     last-header-ghost @ , 
                   1368:     loadfile , 
                   1369:     sourceline# , 
                   1370:   ;
                   1371: 
1.52      jwilke   1372: : refered ( ghost tag -- )
1.53      jwilke   1373: \G creates a resolve structure
1.54      pazsan   1374:     T here aligned H swap (refered)
                   1375:   ;
                   1376: 
                   1377: : killref ( addr ghost -- )
                   1378: \G kills a forward reference to ghost at position addr
                   1379: \G this is used to eleminate a :dovar refence after making a DOES>
                   1380:     dup >magic @ <fwd> <> IF 2drop EXIT THEN
                   1381:     swap >r >link
                   1382:     BEGIN dup @ dup  ( addr last this )
                   1383:     WHILE dup >taddr @ r@ =
                   1384:         IF   @ over !
                   1385:         ELSE nip THEN
                   1386:     REPEAT rdrop 2drop 
1.53      jwilke   1387:   ;
1.48      anton    1388: 
1.52      jwilke   1389: Defer resolve-warning
1.1       anton    1390: 
1.52      jwilke   1391: : reswarn-test ( ghost res-struct -- ghost res-struct )
1.78      jwilke   1392:   over cr ." Resolving " .ghost dup ."  in " >ghost @ .ghost ;
1.1       anton    1393: 
1.52      jwilke   1394: : reswarn-forward ( ghost res-struct -- ghost res-struct )
1.78      jwilke   1395:   over warnhead .ghost dup ."  is referenced in " 
                   1396:   >ghost @ .ghost ;
1.1       anton    1397: 
1.52      jwilke   1398: \ ' reswarn-test IS resolve-warning
                   1399:  
1.1       anton    1400: \ resolve                                              14oct92py
                   1401: 
1.54      pazsan   1402:  : resolve-loop ( ghost resolve-list tcfa -- )
                   1403:     >r
                   1404:     BEGIN dup WHILE 
                   1405: \        dup >tag @ 2 = IF reswarn-forward THEN
                   1406:          resolve-warning 
                   1407:          r@ over >taddr @ 
                   1408:          2 pick >tag @
                   1409:          CASE  0 OF colon-resolve ENDOF
                   1410:                1 OF addr-resolve ENDOF
                   1411:                2 OF doer-resolve ENDOF
                   1412:          ENDCASE
                   1413:          @ \ next list element
                   1414:     REPEAT 2drop rdrop 
                   1415:   ;
1.52      jwilke   1416: 
                   1417: \ : resolve-loop ( ghost tcfa -- ghost tcfa )
                   1418: \  >r dup >link @
                   1419: \  BEGIN  dup  WHILE  dup T @ H r@ rot T ! H REPEAT  drop r> ;
1.1       anton    1420: 
                   1421: \ exists                                                9may93jaw
                   1422: 
1.52      jwilke   1423: Variable TWarnings
                   1424: TWarnings on
                   1425: Variable Exists-Warnings
                   1426: Exists-Warnings on
                   1427: 
1.1       anton    1428: : exists ( ghost tcfa -- )
                   1429:   over GhostNames
                   1430:   BEGIN @ dup
                   1431:   WHILE 2dup cell+ @ =
                   1432:   UNTIL
1.52      jwilke   1433:         2 cells + count
                   1434:         TWarnings @ Exists-Warnings @ and
                   1435:         IF warnhead type ."  exists"
                   1436:         ELSE 2drop THEN
                   1437:         drop swap >link !
1.24      pazsan   1438:   ELSE  true abort" CROSS: Ghostnames inconsistent "
1.1       anton    1439:   THEN ;
                   1440: 
                   1441: : resolve  ( ghost tcfa -- )
1.54      pazsan   1442: \G resolve referencies to ghost with tcfa
                   1443:     \ is ghost resolved?, second resolve means another definition with the
                   1444:     \ same name
1.75      jwilke   1445:     over undefined? 0= IF  exists EXIT THEN
1.54      pazsan   1446:     \ get linked-list
                   1447:     swap >r r@ >link @ swap \ ( list tcfa R: ghost )
                   1448:     \ mark ghost as resolved
                   1449:     dup r@ >link ! <res> r@ >magic !
                   1450:     \ loop through forward referencies
                   1451:     r> -rot 
                   1452:     comp-state @ >r Resolving comp-state !
                   1453:     resolve-loop 
                   1454:     r> comp-state !
                   1455: 
                   1456:     ['] noop IS resolve-warning 
1.52      jwilke   1457:   ;
1.1       anton    1458: 
                   1459: \ gexecute ghost,                                      01nov92py
                   1460: 
1.52      jwilke   1461: : is-forward   ( ghost -- )
1.54      pazsan   1462:   colonmark, 0 (refered) ; \ compile space for call
1.52      jwilke   1463: 
                   1464: : is-resolved   ( ghost -- )
                   1465:   >link @ colon, ; \ compile-call
                   1466: 
                   1467: : gexecute   ( ghost -- )
                   1468:   dup @ <fwd> = IF  is-forward  ELSE  is-resolved  THEN ;
                   1469: 
                   1470: : addr,  ( ghost -- )
                   1471:   dup @ <fwd> = IF  1 refered 0 T a, H ELSE >link @ T a, H THEN ;
                   1472: 
                   1473: \ !! : ghost,     ghost  gexecute ;
1.1       anton    1474: 
                   1475: \ .unresolved                                          11may93jaw
                   1476: 
                   1477: variable ResolveFlag
                   1478: 
                   1479: \ ?touched                                             11may93jaw
                   1480: 
1.52      jwilke   1481: : ?touched ( ghost -- flag ) dup forward? swap >link @
1.1       anton    1482:                                0 <> and ;
                   1483: 
1.53      jwilke   1484: : .forwarddefs ( ghost -- )
                   1485:        ."  appeared in:"
                   1486:        >link
                   1487:        BEGIN   @ dup
                   1488:        WHILE   cr 5 spaces
1.78      jwilke   1489:                dup >ghost @ .ghost
1.53      jwilke   1490:                ."  file " dup >file @ ?dup IF count type ELSE ." CON" THEN
                   1491:                ."  line " dup >line @ .dec
                   1492:        REPEAT 
                   1493:        drop ;
                   1494: 
1.1       anton    1495: : ?resolved  ( ghostname -- )
                   1496:   dup cell+ @ ?touched
1.53      jwilke   1497:   IF   dup 
                   1498:        cell+ cell+ count cr type ResolveFlag on 
                   1499:        cell+ @ .forwarddefs
                   1500:   ELSE         drop 
                   1501:   THEN ;
1.1       anton    1502: 
                   1503: : .unresolved  ( -- )
                   1504:   ResolveFlag off cr ." Unresolved: "
                   1505:   Ghostnames
                   1506:   BEGIN @ dup
                   1507:   WHILE dup ?resolved
1.10      anton    1508:   REPEAT drop ResolveFlag @
                   1509:   IF
1.48      anton    1510:       -1 abort" Unresolved words!"
1.10      anton    1511:   ELSE
                   1512:       ." Nothing!"
                   1513:   THEN
                   1514:   cr ;
1.1       anton    1515: 
1.52      jwilke   1516: : .stats
                   1517:   base @ >r decimal
                   1518:   cr ." named Headers: " headers-named @ . 
                   1519:   r> base ! ;
                   1520: 
1.79      jwilke   1521: >MINIMAL
                   1522: 
                   1523: : .unresolved .unresolved ;
                   1524: 
1.1       anton    1525: >CROSS
                   1526: \ Header states                                        12dec92py
                   1527: 
                   1528: : flag! ( 8b -- )   tlast @ dup >r T c@ xor r> c! H ;
                   1529: 
                   1530: VARIABLE ^imm
                   1531: 
                   1532: >TARGET
1.36      anton    1533: : immediate     40 flag!
1.18      pazsan   1534:                 ^imm @ @ dup <imm> = IF  drop  EXIT  THEN
1.1       anton    1535:                 <res> <> ABORT" CROSS: Cannot immediate a unresolved word"
                   1536:                 <imm> ^imm @ ! ;
1.36      anton    1537: : restrict      20 flag! ;
1.52      jwilke   1538: 
1.54      pazsan   1539: : isdoer       
                   1540: \G define a forth word as doer, this makes obviously only sence on
                   1541: \G forth processors such as the PSC1000
                   1542:                <do:> last-header-ghost @ >magic ! ;
1.1       anton    1543: >CROSS
                   1544: 
                   1545: \ Target Header Creation                               01nov92py
                   1546: 
1.52      jwilke   1547: >TARGET
1.1       anton    1548: : string,  ( addr count -- )
1.28      pazsan   1549:   dup T c, H bounds  ?DO  I c@ T c, H  LOOP ; 
1.52      jwilke   1550: : name,  ( "name" -- )  bl word count T string, cfalign H ;
1.1       anton    1551: : view,   ( -- ) ( dummy ) ;
1.52      jwilke   1552: >CROSS
1.1       anton    1553: 
1.25      pazsan   1554: \ Target Document Creation (goes to crossdoc.fd)       05jul95py
                   1555: 
1.55      pazsan   1556: s" ./doc/crossdoc.fd" r/w create-file throw value doc-file-id
1.25      pazsan   1557: \ contains the file-id of the documentation file
                   1558: 
1.40      pazsan   1559: : T-\G ( -- )
1.25      pazsan   1560:     source >in @ /string doc-file-id write-line throw
1.40      pazsan   1561:     postpone \ ;
1.25      pazsan   1562: 
1.39      pazsan   1563: Variable to-doc  to-doc on
1.25      pazsan   1564: 
                   1565: : cross-doc-entry  ( -- )
                   1566:     to-doc @ tlast @ 0<> and   \ not an anonymous (i.e. noname) header
                   1567:     IF
                   1568:        s" " doc-file-id write-line throw
                   1569:        s" make-doc " doc-file-id write-file throw
1.77      jwilke   1570: 
                   1571:        tlast @ >image count 1F and doc-file-id write-file throw
1.25      pazsan   1572:        >in @
                   1573:        [char] ( parse 2drop
                   1574:        [char] ) parse doc-file-id write-file throw
                   1575:        s"  )" doc-file-id write-file throw
                   1576:        [char] \ parse 2drop                                    
1.40      pazsan   1577:        T-\G
1.25      pazsan   1578:        >in !
1.39      pazsan   1579:     THEN ;
1.25      pazsan   1580: 
1.28      pazsan   1581: \ Target TAGS creation
                   1582: 
1.39      pazsan   1583: s" kernel.TAGS" r/w create-file throw value tag-file-id
1.28      pazsan   1584: \ contains the file-id of the tags file
                   1585: 
                   1586: Create tag-beg 2 c,  7F c, bl c,
                   1587: Create tag-end 2 c,  bl c, 01 c,
                   1588: Create tag-bof 1 c,  0C c,
                   1589: 
                   1590: 2variable last-loadfilename 0 0 last-loadfilename 2!
                   1591:            
                   1592: : put-load-file-name ( -- )
1.77      jwilke   1593:     sourcefilename last-loadfilename 2@ d<>
1.28      pazsan   1594:     IF
                   1595:        tag-bof count tag-file-id write-line throw
1.31      anton    1596:        sourcefilename 2dup
1.28      pazsan   1597:        tag-file-id write-file throw
                   1598:        last-loadfilename 2!
                   1599:        s" ,0" tag-file-id write-line throw
                   1600:     THEN ;
                   1601: 
                   1602: : cross-tag-entry  ( -- )
                   1603:     tlast @ 0<>        \ not an anonymous (i.e. noname) header
                   1604:     IF
                   1605:        put-load-file-name
                   1606:        source >in @ min tag-file-id write-file throw
                   1607:        tag-beg count tag-file-id write-file throw
1.77      jwilke   1608:        tlast @ >image count 1F and tag-file-id write-file throw
1.28      pazsan   1609:        tag-end count tag-file-id write-file throw
1.31      anton    1610:        base @ decimal sourceline# 0 <# #s #> tag-file-id write-file throw
1.28      pazsan   1611: \      >in @ 0 <# #s [char] , hold #> tag-file-id write-line throw
                   1612:        s" ,0" tag-file-id write-line throw
                   1613:        base !
                   1614:     THEN ;
                   1615: 
1.43      pazsan   1616: \ Check for words
                   1617: 
                   1618: Defer skip? ' false IS skip?
                   1619: 
1.75      jwilke   1620: : skipdef ( <name> -- )
1.79      jwilke   1621: \G skip definition of an undefined word in undef-words and
                   1622: \G all-words mode
1.75      jwilke   1623:     ghost dup forward?
                   1624:     IF  >magic <skip> swap !
                   1625:     ELSE drop THEN ;
                   1626: 
1.77      jwilke   1627: : tdefined? ( -- flag ) \ name
1.75      jwilke   1628:     ghost undefined? 0= ;
                   1629: 
                   1630: : defined2? ( -- flag ) \ name
                   1631: \G return true for anything else than forward, even for <skip>
                   1632: \G that's what we want
1.52      jwilke   1633:     ghost forward? 0= ;
1.43      pazsan   1634: 
1.79      jwilke   1635: : forced? ( -- flag ) \ name
                   1636: \G return ture if it is a foreced skip with defskip
                   1637:     ghost >magic @ <skip> = ;
                   1638: 
1.43      pazsan   1639: : needed? ( -- flag ) \ name
1.48      anton    1640: \G returns a false flag when
                   1641: \G a word is not defined
                   1642: \G a forward reference exists
                   1643: \G so the definition is not skipped!
                   1644:     bl word gfind
1.75      jwilke   1645:     IF dup undefined?
1.48      anton    1646:        nip
                   1647:        0=
                   1648:     ELSE  drop true  THEN ;
1.43      pazsan   1649: 
1.44      pazsan   1650: : doer? ( -- flag ) \ name
                   1651:     ghost >magic @ <do:> = ;
                   1652: 
1.43      pazsan   1653: : skip-defs ( -- )
                   1654:     BEGIN  refill  WHILE  source -trailing nip 0= UNTIL  THEN ;
                   1655: 
1.28      pazsan   1656: \ Target header creation
                   1657: 
1.54      pazsan   1658: Variable NoHeaderFlag
                   1659: NoHeaderFlag off
1.1       anton    1660: 
1.54      pazsan   1661: : 0.r ( n1 n2 -- ) 
                   1662:     base @ >r hex 
                   1663:     0 swap <# 0 ?DO # LOOP #> type 
                   1664:     r> base ! ;
1.84    ! jwilke   1665: 
        !          1666: : .sym ( adr len -- )
        !          1667: \G escapes / and \ to produce sed output
1.52      jwilke   1668:   bounds 
                   1669:   DO I c@ dup
1.77      jwilke   1670:        CASE    [char] / OF drop ." \/" ENDOF
                   1671:                [char] \ OF drop ." \\" ENDOF
1.52      jwilke   1672:                dup OF emit ENDOF
                   1673:        ENDCASE
1.54      pazsan   1674:     LOOP ;
1.52      jwilke   1675: 
1.43      pazsan   1676: : (Theader ( "name" -- ghost )
1.54      pazsan   1677:     \  >in @ bl word count type 2 spaces >in !
                   1678:     \ wordheaders will always be compiled to rom
                   1679:     switchrom
                   1680:     \ build header in target
                   1681:     NoHeaderFlag @
                   1682:     IF  NoHeaderFlag off
                   1683:     ELSE
                   1684:        T align H view,
1.78      jwilke   1685:        tlast @ dup 0> IF tcell - THEN T A, H  there tlast !
1.54      pazsan   1686:        1 headers-named +!      \ Statistic
                   1687:        >in @ T name, H >in !
                   1688:     THEN
                   1689:     T cfalign here H tlastcfa !
1.84    ! jwilke   1690:     \ Old Symbol table sed-script
1.54      pazsan   1691: \    >in @ cr ." sym:s/CFA=" there 4 0.r ." /"  bl word count .sym ." /g" cr >in !
1.78      jwilke   1692:     ghost
1.84    ! jwilke   1693:     \ output symbol table to extra file
        !          1694:     [ [IFDEF] fd-symbol-table ]
        !          1695:       base @ hex there s>d <# 8 0 DO # LOOP #> fd-symbol-table write-file throw base !
        !          1696:       s" :" fd-symbol-table write-file throw
        !          1697:       dup >ghostname fd-symbol-table write-line throw
        !          1698:     [ [THEN] ]
1.54      pazsan   1699:     dup Last-Header-Ghost !
                   1700:     dup >magic ^imm !     \ a pointer for immediate
                   1701:     Already @
                   1702:     IF  dup >end tdoes !
                   1703:     ELSE 0 tdoes !
                   1704:     THEN
                   1705:     80 flag!
                   1706:     cross-doc-entry cross-tag-entry ;
1.1       anton    1707: 
                   1708: VARIABLE ;Resolve 1 cells allot
1.52      jwilke   1709: \ this is the resolver information from ":"
                   1710: \ resolving is done by ";"
1.1       anton    1711: 
1.11      pazsan   1712: : Theader  ( "name" -- ghost )
                   1713:   (THeader dup there resolve 0 ;Resolve ! ;
1.1       anton    1714: 
                   1715: >TARGET
                   1716: : Alias    ( cfa -- ) \ name
1.43      pazsan   1717:     >in @ skip? IF  2drop  EXIT  THEN  >in !
1.53      jwilke   1718:     dup 0< s" prims" T $has? H 0= and
1.43      pazsan   1719:     IF
1.53      jwilke   1720:        .sourcepos ." needs prim: " >in @ bl word count type >in ! cr
1.43      pazsan   1721:     THEN
                   1722:     (THeader over resolve T A, H 80 flag! ;
1.42      pazsan   1723: : Alias:   ( cfa -- ) \ name
1.43      pazsan   1724:     >in @ skip? IF  2drop  EXIT  THEN  >in !
1.53      jwilke   1725:     dup 0< s" prims" T $has? H 0= and
1.43      pazsan   1726:     IF
1.53      jwilke   1727:        .sourcepos ." needs doer: " >in @ bl word count type >in ! cr
1.43      pazsan   1728:     THEN
                   1729:     ghost tuck swap resolve <do:> swap >magic ! ;
1.64      pazsan   1730: 
                   1731: Variable prim#
                   1732: : first-primitive ( n -- )  prim# ! ;
                   1733: : Primitive  ( -- ) \ name
                   1734:     prim# @ T Alias H  -1 prim# +! ;
1.1       anton    1735: >CROSS
                   1736: 
                   1737: \ Conditionals and Comments                            11may93jaw
                   1738: 
                   1739: : ;Cond
                   1740:   postpone ;
                   1741:   swap ! ;  immediate
                   1742: 
                   1743: : Cond: ( -- ) \ name {code } ;
                   1744:   atonce on
                   1745:   ghost
                   1746:   >exec
                   1747:   :NONAME ;
                   1748: 
                   1749: : restrict? ( -- )
                   1750: \ aborts on interprete state - ae
                   1751:   state @ 0= ABORT" CROSS: Restricted" ;
                   1752: 
                   1753: : Comment ( -- )
                   1754:   >in @ atonce on ghost swap >in ! ' swap >exec ! ;
                   1755: 
                   1756: Comment (       Comment \
                   1757: 
                   1758: \ compile                                              10may93jaw
                   1759: 
                   1760: : compile  ( -- ) \ name
                   1761:   restrict?
1.13      pazsan   1762:   bl word gfind dup 0= ABORT" CROSS: Can't compile "
1.1       anton    1763:   0> ( immediate? )
                   1764:   IF    >exec @ compile,
                   1765:   ELSE  postpone literal postpone gexecute  THEN ;
                   1766:                                         immediate
                   1767: 
1.52      jwilke   1768: : [G'] 
                   1769: \G ticks a ghost and returns its address
                   1770:   bl word gfind 0= ABORT" CROSS: Ghost don't exists"
                   1771:   state @
                   1772:   IF   postpone literal
                   1773:   THEN ; immediate
                   1774: 
                   1775: : ghost>cfa
1.75      jwilke   1776:   dup undefined? ABORT" CROSS: forward " >link @ ;
1.52      jwilke   1777:                
                   1778: >TARGET
                   1779: 
                   1780: : '  ( -- cfa ) 
                   1781: \ returns the target-cfa of a ghost
                   1782:   bl word gfind 0= ABORT" CROSS: Ghost don't exists"
                   1783:   ghost>cfa ;
                   1784: 
                   1785: Cond: [']  T ' H alit, ;Cond
                   1786: 
                   1787: >CROSS
                   1788: 
                   1789: : [T']
                   1790: \ returns the target-cfa of a ghost, or compiles it as literal
                   1791:   postpone [G'] state @ IF postpone ghost>cfa ELSE ghost>cfa THEN ; immediate
1.42      pazsan   1792: 
1.52      jwilke   1793: \ \ threading modell                                   13dec92py
                   1794: \ modularized                                          14jun97jaw
                   1795: 
                   1796: : fillcfa   ( usedcells -- )
1.78      jwilke   1797:   T cells H xt>body swap - 0 ?DO 0 X c, tchar +LOOP ;
1.52      jwilke   1798: 
                   1799: : (>body)   ( cfa -- pfa ) xt>body + ;         ' (>body) T IS >body H
                   1800: 
                   1801: : (doer,)   ( ghost -- ) ]comp gexecute comp[ 1 fillcfa ;   ' (doer,) IS doer,
                   1802: 
                   1803: : (docol,)  ( -- ) [G'] :docol doer, ;         ' (docol,) IS docol,
                   1804: 
                   1805: : (doprim,) ( -- )
                   1806:   there xt>body + ca>native T a, H 1 fillcfa ; ' (doprim,) IS doprim,
                   1807: 
                   1808: : (doeshandler,) ( -- ) 
                   1809:   T cfalign H compile :doesjump T 0 , H ;      ' (doeshandler,) IS doeshandler,
                   1810: 
                   1811: : (dodoes,) ( does-action-ghost -- )
                   1812:   ]comp [G'] :dodoes gexecute comp[
                   1813:   addr,
                   1814:   T here H tcell - reloff 2 fillcfa ;          ' (dodoes,) IS dodoes,
                   1815: 
                   1816: : (lit,) ( n -- )   compile lit T  ,  H ;      ' (lit,) IS lit,
                   1817: 
1.67      jwilke   1818: \ if we dont produce relocatable code alit, defaults to lit, jaw
1.84    ! jwilke   1819: \ this is just for convenience, so we don't have to define alit,
        !          1820: \ seperately for embedded systems....
        !          1821: T has? relocate H
1.67      jwilke   1822: [IF]
1.66      pazsan   1823: : (alit,) ( n -- )  compile lit T  a, H ;      ' (alit,) IS alit,
1.67      jwilke   1824: [ELSE]
                   1825: : (alit,) ( n -- )  lit, ;                     ' (alit,) IS alit,
                   1826: [THEN]
1.52      jwilke   1827: 
                   1828: : (fini,)         compile ;s ;                ' (fini,) IS fini,
1.42      pazsan   1829: 
1.43      pazsan   1830: [IFUNDEF] (code) 
                   1831: Defer (code)
                   1832: Defer (end-code)
                   1833: [THEN]
                   1834: 
1.1       anton    1835: >TARGET
1.43      pazsan   1836: : Code
1.52      jwilke   1837:   defempty?
1.48      anton    1838:   (THeader there resolve
1.53      jwilke   1839:   [ T e? prims H 0= [IF] T e? ITC H [ELSE] true [THEN] ] [IF]
1.52      jwilke   1840:   doprim, 
1.48      anton    1841:   [THEN]
                   1842:   depth (code) ;
1.43      pazsan   1843: 
                   1844: : Code:
1.52      jwilke   1845:   defempty?
1.48      anton    1846:     ghost dup there ca>native resolve  <do:> swap >magic !
1.43      pazsan   1847:     depth (code) ;
                   1848: 
                   1849: : end-code
1.52      jwilke   1850:     (end-code)
1.43      pazsan   1851:     depth ?dup IF   1- <> ABORT" CROSS: Stack changed"
                   1852:     ELSE true ABORT" CROSS: Stack empty" THEN
1.52      jwilke   1853:     ;
1.14      anton    1854: 
1.1       anton    1855: >CROSS
1.52      jwilke   1856: 
1.1       anton    1857: \ tLiteral                                             12dec92py
                   1858: 
                   1859: >TARGET
1.40      pazsan   1860: Cond: \G  T-\G ;Cond
                   1861: 
1.1       anton    1862: Cond:  Literal ( n -- )   restrict? lit, ;Cond
                   1863: Cond: ALiteral ( n -- )   restrict? alit, ;Cond
                   1864: 
                   1865: : Char ( "<char>" -- )  bl word char+ c@ ;
                   1866: Cond: [Char]   ( "<char>" -- )  restrict? Char  lit, ;Cond
                   1867: 
1.43      pazsan   1868: \ some special literals                                        27jan97jaw
                   1869: 
1.52      jwilke   1870: \ !! Known Bug: Special Literals and plug-ins work only correct
                   1871: \ on 16 and 32 Bit Targets and 32 Bit Hosts!
                   1872: 
1.43      pazsan   1873: Cond: MAXU
1.52      jwilke   1874:   restrict? 
                   1875:   tcell 1 cells u> 
                   1876:   IF   compile lit tcell 0 ?DO FF T c, H LOOP 
1.77      jwilke   1877:   ELSE ffffffff lit, THEN
1.52      jwilke   1878:   ;Cond
1.43      pazsan   1879: 
                   1880: Cond: MINI
1.52      jwilke   1881:   restrict?
                   1882:   tcell 1 cells u>
                   1883:   IF   compile lit bigendian 
                   1884:        IF      80 T c, H tcell 1 ?DO 0 T c, H LOOP 
                   1885:        ELSE    tcell 1 ?DO 0 T c, H LOOP 80 T c, H
                   1886:        THEN
1.77      jwilke   1887:   ELSE tcell 2 = IF 8000 ELSE 80000000 THEN lit, THEN
1.52      jwilke   1888:   ;Cond
1.43      pazsan   1889:  
                   1890: Cond: MAXI
1.52      jwilke   1891:  restrict?
                   1892:  tcell 1 cells u>
                   1893:  IF    compile lit bigendian 
                   1894:        IF      7F T c, H tcell 1 ?DO FF T c, H LOOP
                   1895:        ELSE    tcell 1 ?DO FF T c, H LOOP 7F T c, H
                   1896:        THEN
1.77      jwilke   1897:  ELSE  tcell 2 = IF 7fff ELSE 7fffffff THEN lit, THEN
1.43      pazsan   1898:  ;Cond
                   1899: 
1.1       anton    1900: >CROSS
                   1901: \ Target compiling loop                                12dec92py
                   1902: \ ">tib trick thrown out                               10may93jaw
                   1903: \ number? defined at the top                           11may93jaw
1.77      jwilke   1904: \ replaced >in by save-input                           
                   1905: 
                   1906: : discard 0 ?DO drop LOOP ;
1.1       anton    1907: 
                   1908: \ compiled word might leave items on stack!
1.77      jwilke   1909: : tcom ( x1 .. xn n name -- )
                   1910: \  dup count type space
                   1911:   gfind  ?dup
                   1912:   IF    >r >r discard r> r>
                   1913:        0> IF   >exec @ execute
                   1914:        ELSE    gexecute  THEN 
                   1915:        EXIT 
                   1916:   THEN
                   1917:   number? dup  
                   1918:   IF   0> IF swap lit,  THEN  lit, discard
                   1919:   ELSE 2drop restore-input throw ghost gexecute THEN  ;
1.1       anton    1920: 
                   1921: >TARGET
                   1922: \ : ; DOES>                                            13dec92py
                   1923: \ ]                                                     9may93py/jaw
                   1924: 
                   1925: : ] state on
1.54      pazsan   1926:     Compiling comp-state !
1.1       anton    1927:     BEGIN
1.77      jwilke   1928:         BEGIN save-input bl word
                   1929:               dup c@ 0= WHILE drop discard refill 0=
1.1       anton    1930:               ABORT" CROSS: End of file while target compiling"
                   1931:         REPEAT
                   1932:         tcom
                   1933:         state @
                   1934:         0=
                   1935:     UNTIL ;
                   1936: 
                   1937: \ by the way: defining a second interpreter (a compiler-)loop
                   1938: \             is not allowed if a system should be ans conform
                   1939: 
                   1940: : : ( -- colon-sys ) \ Name
1.52      jwilke   1941:   defempty?
                   1942:   constflag off \ don't let this flag work over colon defs
                   1943:                \ just to go sure nothing unwanted happens
1.43      pazsan   1944:   >in @ skip? IF  drop skip-defs  EXIT  THEN  >in !
1.1       anton    1945:   (THeader ;Resolve ! there ;Resolve cell+ !
1.52      jwilke   1946:   docol, ]comp depth T ] H ;
1.1       anton    1947: 
1.37      pazsan   1948: : :noname ( -- colon-sys )
1.52      jwilke   1949:   T cfalign H there docol, 0 ;Resolve ! depth T ] H ;
1.37      pazsan   1950: 
1.2       pazsan   1951: Cond: EXIT ( -- )  restrict?  compile ;S  ;Cond
1.6       anton    1952: 
                   1953: Cond: ?EXIT ( -- ) 1 abort" CROSS: using ?exit" ;Cond
1.2       pazsan   1954: 
1.52      jwilke   1955: >CROSS
                   1956: : LastXT ;Resolve @ 0= abort" CROSS: no definition for LastXT"
                   1957:          ;Resolve cell+ @ ;
                   1958: 
                   1959: >TARGET
                   1960: 
                   1961: Cond: recurse ( -- ) Last-Ghost @ gexecute ;Cond
                   1962: 
1.1       anton    1963: Cond: ; ( -- ) restrict?
                   1964:                depth ?dup IF   1- <> ABORT" CROSS: Stack changed"
                   1965:                           ELSE true ABORT" CROSS: Stack empty" THEN
1.52      jwilke   1966:                fini,
                   1967:                comp[
                   1968:                state off
1.1       anton    1969:                ;Resolve @
                   1970:                IF ;Resolve @ ;Resolve cell+ @ resolve THEN
1.54      pazsan   1971:                Interpreting comp-state !
1.1       anton    1972:                ;Cond
1.54      pazsan   1973: Cond: [  restrict? state off Interpreting comp-state ! ;Cond
1.1       anton    1974: 
                   1975: >CROSS
1.54      pazsan   1976: 
                   1977: Create GhostDummy ghostheader
                   1978: <res> GhostDummy >magic !
                   1979: 
1.52      jwilke   1980: : !does ( does-action -- )
                   1981: \ !! zusammenziehen und dodoes, machen!
1.54      pazsan   1982:     tlastcfa @ [G'] :dovar killref
                   1983: \    tlastcfa @ dup there >r tdp ! compile :dodoes r> tdp ! T cell+ ! H ;
1.52      jwilke   1984: \ !! geht so nicht, da dodoes, ghost will!
1.54      pazsan   1985:     GhostDummy >link ! GhostDummy 
                   1986:     tlastcfa @ >tempdp dodoes, tempdp> ;
1.1       anton    1987: 
                   1988: >TARGET
                   1989: Cond: DOES> restrict?
1.52      jwilke   1990:         compile (does>) doeshandler, 
                   1991:        \ resolve words made by builders
                   1992:        tdoes @ ?dup IF  @ T here H resolve THEN
1.1       anton    1993:         ;Cond
1.52      jwilke   1994: : DOES> switchrom doeshandler, T here H !does depth T ] H ;
1.1       anton    1995: 
                   1996: >CROSS
                   1997: \ Creation                                             01nov92py
                   1998: 
                   1999: \ Builder                                               11may93jaw
                   2000: 
1.52      jwilke   2001: : Builder    ( Create-xt do:-xt "name" -- )
                   2002: \ builds up a builder in current vocabulary
                   2003: \ create-xt is executed when word is interpreted
                   2004: \ do:-xt is executet when the created word from builder is executed
                   2005: \ for do:-xt an additional entry after the normal ghost-enrys is used
                   2006: 
1.78      jwilke   2007:   Make-Ghost           ( Create-xt do:-xt ghost )
                   2008:   rot swap             ( do:-xt Create-xt ghost )
                   2009:   >exec ! , ;
                   2010: \  rot swap >exec dup @ ['] NoExec <>
                   2011: \  IF 2drop ELSE ! THEN , ;
1.1       anton    2012: 
1.52      jwilke   2013: : gdoes,  ( ghost -- )
                   2014: \ makes the codefield for a word that is built
1.75      jwilke   2015:   >end @ dup undefined? 0=
1.52      jwilke   2016:   IF
1.42      pazsan   2017:        dup >magic @ <do:> =
1.54      pazsan   2018:        IF       doer, 
                   2019:        ELSE    dodoes,
                   2020:        THEN
                   2021:        EXIT
1.52      jwilke   2022:   THEN
                   2023: \  compile :dodoes gexecute
                   2024: \  T here H tcell - reloff 
1.54      pazsan   2025:   2 refered 
                   2026:   0 fillcfa
                   2027:   ;
1.1       anton    2028: 
1.52      jwilke   2029: : TCreate ( <name> -- )
                   2030:   executed-ghost @
                   2031:   create-forward-warn
                   2032:   IF ['] reswarn-forward IS resolve-warning THEN
1.11      pazsan   2033:   Theader >r dup gdoes,
1.77      jwilke   2034: \ stores execution semantic in the built word
1.78      jwilke   2035: \ if the word already has a semantic (concerns S", IS, .", DOES>)
                   2036: \ then keep it
                   2037:   >end @ >exec @ r> >exec dup @ ['] NoExec =
                   2038:   IF ! ELSE 2drop THEN ;
1.52      jwilke   2039: 
                   2040: : RTCreate ( <name> -- )
                   2041: \ creates a new word with code-field in ram
                   2042:   executed-ghost @
                   2043:   create-forward-warn
                   2044:   IF ['] reswarn-forward IS resolve-warning THEN
                   2045:   \ make Alias
                   2046:   (THeader there 0 T a, H 80 flag! ( S executed-ghost new-ghost )
                   2047:   \ store  poiter to code-field
                   2048:   switchram T cfalign H
                   2049:   there swap T ! H
                   2050:   there tlastcfa ! 
                   2051:   dup there resolve 0 ;Resolve !
                   2052:   >r dup gdoes,
1.78      jwilke   2053: \ stores execution semantic in the built word
                   2054: \ if the word already has a semantic (concerns S", IS, .", DOES>)
                   2055: \ then keep it
                   2056:   >end @ >exec @ r> >exec dup @ ['] NoExec =
                   2057:   IF ! ELSE 2drop THEN ;
1.1       anton    2058: 
                   2059: : Build:  ( -- [xt] [colon-sys] )
1.52      jwilke   2060:   :noname postpone TCreate ;
                   2061: 
                   2062: : BuildSmart:  ( -- [xt] [colon-sys] )
                   2063:   :noname
1.53      jwilke   2064:   [ T has? rom H [IF] ]
1.52      jwilke   2065:   postpone RTCreate
                   2066:   [ [ELSE] ]
                   2067:   postpone TCreate 
                   2068:   [ [THEN] ] ;
1.1       anton    2069: 
                   2070: : gdoes>  ( ghost -- addr flag )
1.52      jwilke   2071:   executed-ghost @
1.1       anton    2072:   state @ IF  gexecute true EXIT  THEN
1.52      jwilke   2073:   >link @ T >body H false ;
1.1       anton    2074: 
                   2075: \ DO: ;DO                                               11may93jaw
                   2076: \ changed to ?EXIT                                      10may93jaw
                   2077: 
                   2078: : DO:     ( -- addr [xt] [colon-sys] )
                   2079:   here ghostheader
1.11      pazsan   2080:   :noname postpone gdoes> postpone ?EXIT ;
1.1       anton    2081: 
1.42      pazsan   2082: : by:     ( -- addr [xt] [colon-sys] ) \ name
                   2083:   ghost
                   2084:   :noname postpone gdoes> postpone ?EXIT ;
                   2085: 
1.52      jwilke   2086: : ;DO ( addr [xt] [colon-sys] -- addr )
1.1       anton    2087:   postpone ;    ( S addr xt )
                   2088:   over >exec ! ; immediate
                   2089: 
                   2090: : by      ( -- addr ) \ Name
                   2091:   ghost >end @ ;
                   2092: 
                   2093: >TARGET
                   2094: \ Variables and Constants                              05dec92py
                   2095: 
1.52      jwilke   2096: Build:  ( n -- ) ;
                   2097: by: :docon ( ghost -- n ) T @ H ;DO
                   2098: Builder (Constant)
                   2099: 
                   2100: Build:  ( n -- ) T , H ;
                   2101: by (Constant)
                   2102: Builder Constant
                   2103: 
                   2104: Build:  ( n -- ) T A, H ;
                   2105: by (Constant)
                   2106: Builder AConstant
                   2107: 
                   2108: Build:  ( d -- ) T , , H ;
                   2109: DO: ( ghost -- d ) T dup cell+ @ swap @ H ;DO
                   2110: Builder 2Constant
                   2111: 
                   2112: BuildSmart: ;
1.42      pazsan   2113: by: :dovar ( ghost -- addr ) ;DO
1.1       anton    2114: Builder Create
                   2115: 
1.53      jwilke   2116: T has? rom H [IF]
1.54      pazsan   2117: Build: ( -- ) T here 0 , H switchram T align here swap ! 0 , H ( switchrom ) ;
1.52      jwilke   2118: by (Constant)
                   2119: Builder Variable
                   2120: [ELSE]
1.1       anton    2121: Build: T 0 , H ;
                   2122: by Create
                   2123: Builder Variable
1.52      jwilke   2124: [THEN]
1.1       anton    2125: 
1.53      jwilke   2126: T has? rom H [IF]
1.54      pazsan   2127: Build: ( -- ) T here 0 , H switchram T align here swap ! 0 , 0 , H ( switchrom ) ;
                   2128: by (Constant)
                   2129: Builder 2Variable
                   2130: [ELSE]
                   2131: Build: T 0 , 0 , H ;
                   2132: by Create
                   2133: Builder 2Variable
                   2134: [THEN]
                   2135: 
                   2136: T has? rom H [IF]
                   2137: Build: ( -- ) T here 0 , H switchram T align here swap ! 0 , H ( switchrom ) ;
1.52      jwilke   2138: by (Constant)
                   2139: Builder AVariable
                   2140: [ELSE]
1.1       anton    2141: Build: T 0 A, H ;
                   2142: by Create
                   2143: Builder AVariable
1.52      jwilke   2144: [THEN]
1.1       anton    2145: 
1.3       pazsan   2146: \ User variables                                       04may94py
                   2147: 
                   2148: >CROSS
1.78      jwilke   2149: 
1.3       pazsan   2150: Variable tup  0 tup !
                   2151: Variable tudp 0 tudp !
1.78      jwilke   2152: 
1.3       pazsan   2153: : u,  ( n -- udp )
                   2154:   tup @ tudp @ + T  ! H
1.19      pazsan   2155:   tudp @ dup T cell+ H tudp ! ;
1.78      jwilke   2156: 
1.3       pazsan   2157: : au, ( n -- udp )
                   2158:   tup @ tudp @ + T A! H
1.19      pazsan   2159:   tudp @ dup T cell+ H tudp ! ;
1.78      jwilke   2160: 
1.3       pazsan   2161: >TARGET
                   2162: 
1.78      jwilke   2163: Build: 0 u, X , ;
                   2164: by: :douser ( ghost -- up-addr )  X @ tup @ + ;DO
1.1       anton    2165: Builder User
                   2166: 
1.78      jwilke   2167: Build: 0 u, X , 0 u, drop ;
1.3       pazsan   2168: by User
1.1       anton    2169: Builder 2User
                   2170: 
1.78      jwilke   2171: Build: 0 au, X , ;
1.3       pazsan   2172: by User
1.1       anton    2173: Builder AUser
                   2174: 
1.52      jwilke   2175: BuildSmart: T , H ;
1.44      pazsan   2176: by (Constant)
1.1       anton    2177: Builder Value
                   2178: 
1.52      jwilke   2179: BuildSmart: T A, H ;
1.44      pazsan   2180: by (Constant)
1.32      pazsan   2181: Builder AValue
                   2182: 
1.52      jwilke   2183: BuildSmart:  ( -- ) [T'] noop T A, H ;
1.42      pazsan   2184: by: :dodefer ( ghost -- ) ABORT" CROSS: Don't execute" ;DO
1.1       anton    2185: Builder Defer
1.37      pazsan   2186: 
1.78      jwilke   2187: Build: ( inter comp -- ) swap T immediate A, A, H ;
1.37      pazsan   2188: DO: ( ghost -- ) ABORT" CROSS: Don't execute" ;DO
1.38      anton    2189: Builder interpret/compile:
1.24      pazsan   2190: 
                   2191: \ Sturctures                                           23feb95py
                   2192: 
                   2193: >CROSS
                   2194: : nalign ( addr1 n -- addr2 )
                   2195: \ addr2 is the aligned version of addr1 wrt the alignment size n
                   2196:  1- tuck +  swap invert and ;
                   2197: >TARGET
                   2198: 
1.44      pazsan   2199: Build: ;
                   2200: by: :dofield T @ H + ;DO
                   2201: Builder (Field)
                   2202: 
1.51      anton    2203: Build: ( align1 offset1 align size "name" --  align2 offset2 )
                   2204:     rot dup T , H ( align1 align size offset1 )
                   2205:     + >r nalign r> ;
1.44      pazsan   2206: by (Field)
1.24      pazsan   2207: Builder Field
                   2208: 
1.51      anton    2209: : struct  T 1 chars 0 H ;
1.24      pazsan   2210: : end-struct  T 2Constant H ;
                   2211: 
1.52      jwilke   2212: : cell% ( n -- size align )
1.51      anton    2213:     T 1 cells H dup ;
1.24      pazsan   2214: 
1.52      jwilke   2215: \ structural conditionals                              17dec92py
                   2216: 
                   2217: >CROSS
                   2218: : ?struc      ( flag -- )       ABORT" CROSS: unstructured " ;
                   2219: : sys?        ( sys -- sys )    dup 0= ?struc ;
                   2220: : >mark       ( -- sys )        T here  ( dup ." M" hex. ) 0 , H ;
                   2221: 
1.78      jwilke   2222: : branchoffset ( src dest -- )  - tchar / ; \ ?? jaw
1.52      jwilke   2223: 
1.78      jwilke   2224: : >resolve    ( sys -- )        
                   2225:        X here ( dup ." >" hex. ) over branchoffset swap X ! ;
1.52      jwilke   2226: 
1.78      jwilke   2227: : <resolve    ( sys -- )
                   2228:        X here ( dup ." <" hex. ) branchoffset X , ;
1.52      jwilke   2229: 
1.78      jwilke   2230: :noname compile branch X here branchoffset X , ;
1.54      pazsan   2231:   IS branch, ( target-addr -- )
1.78      jwilke   2232: :noname compile ?branch X here branchoffset X , ;
1.54      pazsan   2233:   IS ?branch, ( target-addr -- )
                   2234: :noname compile branch T here 0 , H ;
                   2235:   IS branchmark, ( -- branchtoken )
                   2236: :noname compile ?branch T here 0 , H ;
                   2237:   IS ?branchmark, ( -- branchtoken )
                   2238: :noname T here 0 , H ;
                   2239:   IS ?domark, ( -- branchtoken )
1.78      jwilke   2240: :noname dup X @ ?struc X here over branchoffset swap X ! ;
1.54      pazsan   2241:   IS branchtoresolve, ( branchtoken -- )
1.78      jwilke   2242: :noname branchto, X here ;
1.54      pazsan   2243:   IS branchtomark, ( -- target-addr )
1.52      jwilke   2244: 
                   2245: >TARGET
                   2246: 
                   2247: \ Structural Conditionals                              12dec92py
                   2248: 
                   2249: Cond: BUT       restrict? sys? swap ;Cond
                   2250: Cond: YET       restrict? sys? dup ;Cond
                   2251: 
                   2252: >CROSS
                   2253: 
1.78      jwilke   2254: Variable tleavings 0 tleavings !
1.52      jwilke   2255: 
1.54      pazsan   2256: : (done) ( addr -- )
                   2257:     tleavings @
                   2258:     BEGIN  dup
                   2259:     WHILE
                   2260:        >r dup r@ cell+ @ \ address of branch
                   2261:        u> 0=      \ lower than DO?     
                   2262:     WHILE
                   2263:        r@ 2 cells + @ \ branch token
                   2264:        branchtoresolve,
                   2265:        r@ @ r> free throw
                   2266:     REPEAT  r>  THEN
                   2267:     tleavings ! drop ;
                   2268: 
1.53      jwilke   2269: >TARGET
                   2270: 
1.54      pazsan   2271: Cond: DONE   ( addr -- )  restrict? (done) ;Cond
1.53      jwilke   2272: 
                   2273: >CROSS
1.54      pazsan   2274: : (leave) ( branchtoken -- )
1.53      jwilke   2275:     3 cells allocate throw >r
                   2276:     T here H r@ cell+ !
                   2277:     r@ 2 cells + !
                   2278:     tleavings @ r@ !
                   2279:     r> tleavings ! ;
                   2280: >TARGET
                   2281: 
1.54      pazsan   2282: Cond: LEAVE     restrict? branchmark, (leave) ;Cond
                   2283: Cond: ?LEAVE    restrict? compile 0=  ?branchmark, (leave)  ;Cond
1.53      jwilke   2284: 
1.54      pazsan   2285: >CROSS
                   2286: \ !!JW ToDo : Move to general tools section
                   2287: 
                   2288: : to1 ( x1 x2 xn n -- addr )
                   2289: \G packs n stack elements in a allocated memory region
                   2290:    dup dup 1+ cells allocate throw dup >r swap 1+
                   2291:    0 DO tuck ! cell+ LOOP
                   2292:    drop r> ;
                   2293: : 1to ( addr -- x1 x2 xn )
                   2294: \G unpacks the elements saved by to1
                   2295:     dup @ swap over cells + swap
                   2296:     0 DO  dup @ swap 1 cells -  LOOP
                   2297:     free throw ;
                   2298: 
                   2299: : loop]     branchto, dup <resolve tcell - (done) ;
                   2300: 
                   2301: : skiploop] ?dup IF branchto, branchtoresolve, THEN ;
                   2302: 
                   2303: >TARGET
                   2304: 
1.52      jwilke   2305: \ Structural Conditionals                              12dec92py
                   2306: 
1.53      jwilke   2307: >TARGET
1.52      jwilke   2308: Cond: AHEAD     restrict? branchmark, ;Cond
                   2309: Cond: IF        restrict? ?branchmark, ;Cond
                   2310: Cond: THEN      restrict? sys? branchto, branchtoresolve, ;Cond
                   2311: Cond: ELSE      restrict? sys? compile AHEAD swap compile THEN ;Cond
                   2312: 
                   2313: Cond: BEGIN     restrict? branchtomark, ;Cond
                   2314: Cond: WHILE     restrict? sys? compile IF swap ;Cond
                   2315: Cond: AGAIN     restrict? sys? branch, ;Cond
                   2316: Cond: UNTIL     restrict? sys? ?branch, ;Cond
                   2317: Cond: REPEAT    restrict? over 0= ?struc compile AGAIN compile THEN ;Cond
                   2318: 
                   2319: Cond: CASE      restrict? 0 ;Cond
                   2320: Cond: OF        restrict? 1+ >r compile over compile =
                   2321:                 compile IF compile drop r> ;Cond
1.45      pazsan   2322: Cond: ENDOF     restrict? >r compile ELSE r> ;Cond
                   2323: Cond: ENDCASE   restrict? compile drop 0 ?DO  compile THEN  LOOP ;Cond
1.1       anton    2324: 
                   2325: \ Structural Conditionals                              12dec92py
                   2326: 
1.67      jwilke   2327: :noname \ ?? i think 0 is too much! jaw
1.54      pazsan   2328:     0 compile (do)
                   2329:     branchtomark,  2 to1 ;
                   2330:   IS do, ( -- target-addr )
                   2331: 
                   2332: \ :noname
                   2333: \     compile 2dup compile = compile IF
                   2334: \     compile 2drop compile ELSE
                   2335: \     compile (do) branchtomark, 2 to1 ;
                   2336: \   IS ?do,
                   2337:     
                   2338: :noname
                   2339:     0 compile (?do)  ?domark, (leave)
                   2340:     branchtomark,  2 to1 ;
                   2341:   IS ?do, ( -- target-addr )
                   2342: :noname compile (for) branchtomark, ;
                   2343:   IS for, ( -- target-addr )
                   2344: :noname 1to compile (loop)  loop] compile unloop skiploop] ;
                   2345:   IS loop, ( target-addr -- )
                   2346: :noname 1to compile (+loop)  loop] compile unloop skiploop] ;
                   2347:   IS +loop, ( target-addr -- )
                   2348: :noname compile (next)  loop] compile unloop ;
                   2349:   IS next, ( target-addr -- )
                   2350: 
                   2351: Cond: DO       restrict? do, ;Cond
                   2352: Cond: ?DO      restrict? ?do, ;Cond
                   2353: Cond: FOR      restrict? for, ;Cond
                   2354: 
                   2355: Cond: LOOP     restrict? sys? loop, ;Cond
                   2356: Cond: +LOOP    restrict? sys? +loop, ;Cond
                   2357: Cond: NEXT     restrict? sys? next, ;Cond
1.52      jwilke   2358: 
1.1       anton    2359: \ String words                                         23feb93py
                   2360: 
1.52      jwilke   2361: : ,"            [char] " parse T string, align H ;
1.1       anton    2362: 
                   2363: Cond: ."        restrict? compile (.")     T ," H ;Cond
                   2364: Cond: S"        restrict? compile (S")     T ," H ;Cond
                   2365: Cond: ABORT"    restrict? compile (ABORT") T ," H ;Cond
                   2366: 
                   2367: Cond: IS        T ' >body H compile ALiteral compile ! ;Cond
1.66      pazsan   2368: : IS            T >address ' >body ! H ;
1.9       pazsan   2369: Cond: TO        T ' >body H compile ALiteral compile ! ;Cond
                   2370: : TO            T ' >body ! H ;
1.1       anton    2371: 
1.52      jwilke   2372: Cond: defers   T ' >body @ compile, H ;Cond
                   2373: : on           T -1 swap ! H ; 
                   2374: : off          T 0 swap ! H ;
                   2375: 
1.1       anton    2376: \ LINKED ERR" ENV" 2ENV"                                18may93jaw
                   2377: 
                   2378: \ linked list primitive
1.79      jwilke   2379: : linked        X here over X @ X A, swap X ! ;
1.52      jwilke   2380: : chained      T linked A, H ;
1.1       anton    2381: 
                   2382: : err"   s" ErrLink linked" evaluate T , H
1.52      jwilke   2383:          [char] " parse T string, align H ;
1.1       anton    2384: 
                   2385: : env"  [char] " parse s" EnvLink linked" evaluate
1.52      jwilke   2386:         T string, align , H ;
1.1       anton    2387: 
                   2388: : 2env" [char] " parse s" EnvLink linked" evaluate
1.52      jwilke   2389:         here >r T string, align , , H
1.1       anton    2390:         r> dup T c@ H 80 and swap T c! H ;
                   2391: 
                   2392: \ compile must be last                                 22feb93py
                   2393: 
                   2394: Cond: compile ( -- ) restrict? \ name
1.13      pazsan   2395:       bl word gfind dup 0= ABORT" CROSS: Can't compile"
1.1       anton    2396:       0> IF    gexecute
                   2397:          ELSE  dup >magic @ <imm> =
                   2398:                IF   gexecute
1.54      pazsan   2399:                ELSE compile (compile) addr, THEN THEN ;Cond
1.1       anton    2400: 
                   2401: Cond: postpone ( -- ) restrict? \ name
1.13      pazsan   2402:       bl word gfind dup 0= ABORT" CROSS: Can't compile"
1.1       anton    2403:       0> IF    gexecute
                   2404:          ELSE  dup >magic @ <imm> =
                   2405:                IF   gexecute
1.54      pazsan   2406:               ELSE compile (compile) addr, THEN THEN ;Cond
                   2407:           
1.77      jwilke   2408: \ save-cross                                           17mar93py
                   2409: 
                   2410: hex
                   2411: 
                   2412: >CROSS
                   2413: Create magic  s" Gforth2x" here over allot swap move
                   2414: 
                   2415: bigendian 1+ \ strangely, in magic big=0, little=1
                   2416: tcell 1 = 0 and or
                   2417: tcell 2 = 2 and or
                   2418: tcell 4 = 4 and or
                   2419: tcell 8 = 6 and or
                   2420: tchar 1 = 00 and or
                   2421: tchar 2 = 28 and or
                   2422: tchar 4 = 50 and or
                   2423: tchar 8 = 78 and or
                   2424: magic 7 + c!
                   2425: 
                   2426: : save-cross ( "image-name" "binary-name" -- )
                   2427:   bl parse ." Saving to " 2dup type cr
                   2428:   w/o bin create-file throw >r
                   2429:   TNIL IF
1.80      anton    2430:       s" #! "           r@ write-file throw
                   2431:       bl parse          r@ write-file throw
                   2432:       s"  --image-file" r@ write-file throw
1.77      jwilke   2433:       #lf       r@ emit-file throw
                   2434:       r@ dup file-position throw drop 8 mod 8 swap ( file-id limit index )
                   2435:       ?do
                   2436:          bl over emit-file throw
                   2437:       loop
                   2438:       drop
                   2439:       magic 8       r@ write-file throw \ write magic
                   2440:   ELSE
                   2441:       bl parse 2drop
                   2442:   THEN
                   2443:   image @ there 
                   2444:   r@ write-file throw \ write image
                   2445:   TNIL IF
                   2446:       bit$  @ there 1- tcell>bit rshift 1+
                   2447:                 r@ write-file throw \ write tags
                   2448:   THEN
                   2449:   r> close-file throw ;
                   2450: 
                   2451: : save-region ( addr len -- )
                   2452:   bl parse w/o bin create-file throw >r
                   2453:   swap >image swap r@ write-file throw
                   2454:   r> close-file throw ;
                   2455: 
1.54      pazsan   2456: \ \ minimal definitions
                   2457:           
1.77      jwilke   2458: >MINIMAL also minimal
                   2459: 
1.1       anton    2460: \ Usefull words                                        13feb93py
                   2461: 
                   2462: : KB  400 * ;
                   2463: 
1.54      pazsan   2464: \ \ [IF] [ELSE] [THEN] ...                             14sep97jaw
                   2465: 
                   2466: \ it is useful to define our own structures and not to rely
                   2467: \ on the words in the compiler
                   2468: \ The words in the compiler might be defined with vocabularies
                   2469: \ this doesn't work with our self-made compile-loop
                   2470: 
                   2471: Create parsed 20 chars allot   \ store word we parsed
                   2472: 
                   2473: : upcase
                   2474:     parsed count bounds
                   2475:     ?DO I c@ toupper I c! LOOP ;
                   2476: 
                   2477: : [ELSE]
                   2478:     1 BEGIN
                   2479:        BEGIN bl word count dup WHILE
1.77      jwilke   2480:            comment? 20 umin parsed place upcase parsed count
1.54      pazsan   2481:            2dup s" [IF]" compare 0= >r 
                   2482:            2dup s" [IFUNDEF]" compare 0= >r
                   2483:            2dup s" [IFDEF]" compare 0= r> or r> or
                   2484:            IF   2drop 1+
                   2485:            ELSE 2dup s" [ELSE]" compare 0=
                   2486:                IF   2drop 1- dup
                   2487:                    IF 1+
                   2488:                    THEN
                   2489:                ELSE
                   2490:                    2dup s" [ENDIF]" compare 0= >r
                   2491:                    s" [THEN]" compare 0= r> or
                   2492:                    IF 1- THEN
                   2493:                THEN
                   2494:            THEN
                   2495:            ?dup 0= ?EXIT
                   2496:        REPEAT
                   2497:        2drop refill 0=
                   2498:     UNTIL drop ; immediate
                   2499:   
                   2500: : [THEN] ( -- ) ; immediate
                   2501: 
                   2502: : [ENDIF] ( -- ) ; immediate
                   2503: 
                   2504: : [IF] ( flag -- )
                   2505:     0= IF postpone [ELSE] THEN ; immediate 
                   2506: 
                   2507: Cond: [IF]      postpone [IF] ;Cond
                   2508: Cond: [THEN]    postpone [THEN] ;Cond
                   2509: Cond: [ELSE]    postpone [ELSE] ;Cond
                   2510: 
1.1       anton    2511: \ define new [IFDEF] and [IFUNDEF]                      20may93jaw
                   2512: 
1.77      jwilke   2513: : defined? tdefined? ;
1.44      pazsan   2514: : needed? needed? ;
                   2515: : doer? doer? ;
1.1       anton    2516: 
1.52      jwilke   2517: \ we want to use IFDEF on compiler directives (e.g. E?) in the source, too
                   2518: 
                   2519: : directive? 
1.77      jwilke   2520:   bl word count [ ' target >wordlist ] literal search-wordlist 
1.52      jwilke   2521:   dup IF nip THEN ;
                   2522: 
                   2523: : [IFDEF]  >in @ directive? swap >in !
1.77      jwilke   2524:           0= IF tdefined? ELSE name 2drop true THEN
1.52      jwilke   2525:           postpone [IF] ;
                   2526: 
1.77      jwilke   2527: : [IFUNDEF] tdefined? 0= postpone [IF] ;
1.1       anton    2528: 
1.54      pazsan   2529: Cond: [IFDEF]   postpone [IFDEF] ;Cond
                   2530: 
                   2531: Cond: [IFUNDEF] postpone [IFUNDEF] ;Cond
                   2532: 
1.1       anton    2533: \ C: \- \+ Conditional Compiling                         09jun93jaw
                   2534: 
1.77      jwilke   2535: : C: >in @ tdefined? 0=
                   2536:      IF    >in ! X :
1.1       anton    2537:      ELSE drop
                   2538:         BEGIN bl word dup c@
                   2539:               IF   count comment? s" ;" compare 0= ?EXIT
                   2540:               ELSE refill 0= ABORT" CROSS: Out of Input while C:"
                   2541:               THEN
                   2542:         AGAIN
                   2543:      THEN ;
                   2544: 
1.74      jwilke   2545: : d? d? ;
                   2546: 
                   2547: \G doesn't skip line when debug switch is on
                   2548: : \D D? 0= IF postpone \ THEN ;
1.52      jwilke   2549: 
1.48      anton    2550: \G interprets the line if word is not defined
1.77      jwilke   2551: : \- tdefined? IF postpone \ THEN ;
1.48      anton    2552: 
                   2553: \G interprets the line if word is defined
1.77      jwilke   2554: : \+ tdefined? 0= IF postpone \ THEN ;
1.1       anton    2555: 
1.48      anton    2556: Cond: \- \- ;Cond
                   2557: Cond: \+ \+ ;Cond
1.52      jwilke   2558: Cond: \D \D ;Cond
1.48      anton    2559: 
                   2560: : ?? bl word find IF execute ELSE drop 0 THEN ;
                   2561: 
                   2562: : needed:
                   2563: \G defines ghost for words that we want to be compiled
                   2564:   BEGIN >in @ bl word c@ WHILE >in ! ghost drop REPEAT drop ;
                   2565: 
1.1       anton    2566: \ words that should be in minimal
1.52      jwilke   2567: 
                   2568: create s-buffer 50 chars allot
                   2569: 
1.77      jwilke   2570: bigendian Constant bigendian
1.1       anton    2571: 
1.52      jwilke   2572: : here there ;
1.67      jwilke   2573: : equ constant ;
                   2574: : mark there constant ;
1.54      pazsan   2575: 
                   2576: \ compiler directives
1.52      jwilke   2577: : >ram >ram ;
                   2578: : >rom >rom ;
                   2579: : >auto >auto ;
                   2580: : >tempdp >tempdp ;
                   2581: : tempdp> tempdp> ;
                   2582: : const constflag on ;
                   2583: : warnings name 3 = 0= twarnings ! drop ;
1.60      anton    2584: : | ;
                   2585: \ : | NoHeaderFlag on ; \ This is broken (damages the last word)
1.52      jwilke   2586: 
1.48      anton    2587: : save-cross save-cross ;
1.52      jwilke   2588: : save-region save-region ;
                   2589: : tdump swap >image swap dump ;
                   2590: 
1.48      anton    2591: also forth 
1.52      jwilke   2592: [IFDEF] Label           : Label defempty? Label ; [THEN] 
                   2593: [IFDEF] start-macros    : start-macros defempty? start-macros ; [THEN]
1.77      jwilke   2594: \ [IFDEF] builttag     : builttag builttag ;   [THEN]
1.48      anton    2595: previous
                   2596: 
1.52      jwilke   2597: : s" [char] " parse s-buffer place s-buffer count ; \ for environment?
1.43      pazsan   2598: : + + ;
1.52      jwilke   2599: : 1+ 1 + ;
                   2600: : 2+ 2 + ;
1.43      pazsan   2601: : 1- 1- ;
                   2602: : - - ;
1.52      jwilke   2603: : and and ;
                   2604: : or or ;
1.43      pazsan   2605: : 2* 2* ;
                   2606: : * * ;
                   2607: : / / ;
                   2608: : dup dup ;
                   2609: : over over ;
                   2610: : swap swap ;
                   2611: : rot rot ;
                   2612: : drop drop ;
                   2613: : =   = ;
                   2614: : 0=   0= ;
                   2615: : lshift lshift ;
                   2616: : 2/ 2/ ;
1.19      pazsan   2617: : . . ;
1.1       anton    2618: 
1.79      jwilke   2619: : all-words    ['] forced?    IS skip? ;
1.43      pazsan   2620: : needed-words ['] needed?  IS skip? ;
1.75      jwilke   2621: : undef-words  ['] defined2? IS skip? ;
                   2622: : skipdef skipdef ;
1.1       anton    2623: 
1.40      pazsan   2624: : \  postpone \ ;  immediate
1.47      pazsan   2625: : \G T-\G ; immediate
1.40      pazsan   2626: : (  postpone ( ;  immediate
1.1       anton    2627: : include bl word count included ;
1.52      jwilke   2628: : require require ;
1.1       anton    2629: : .( [char] ) parse type ;
1.52      jwilke   2630: : ." [char] " parse type ;
1.1       anton    2631: : cr cr ;
                   2632: 
1.77      jwilke   2633: : times 0 ?DO dup X c, LOOP drop ; \ used for space table creation
                   2634: 
                   2635: \ only forth also cross also minimal definitions order
1.1       anton    2636: 
                   2637: \ cross-compiler words
                   2638: 
                   2639: : decimal       decimal ;
                   2640: : hex           hex ;
                   2641: 
1.77      jwilke   2642: \ : tudp          X tudp ;
                   2643: \ : tup           X tup ;
                   2644: 
                   2645: : doc-off       false to-doc ! ;
                   2646: : doc-on        true  to-doc ! ;
1.39      pazsan   2647: 
1.52      jwilke   2648: [IFDEF] dbg : dbg dbg ; [THEN]
1.39      pazsan   2649: 
1.1       anton    2650: \ for debugging...
                   2651: : order         order ;
1.52      jwilke   2652: : hwords         words ;
                   2653: : words        also ghosts words previous ;
1.1       anton    2654: : .s            .s ;
                   2655: : bye           bye ;
                   2656: 
                   2657: \ turnkey direction
                   2658: : H forth ; immediate
                   2659: : T minimal ; immediate
                   2660: : G ghosts ; immediate
                   2661: 
1.77      jwilke   2662: : turnkey 
1.78      jwilke   2663:    \GFORTH 0 set-order also ghosts
                   2664:    \ANSI [ ' ghosts >wordlist ] Literal 1 set-order
                   2665:    also target definitions
1.77      jwilke   2666:    also Minimal also ;
1.1       anton    2667: 
                   2668: \ these ones are pefered:
                   2669: 
                   2670: : lock   turnkey ;
1.74      jwilke   2671: : unlock previous forth also cross ;
1.52      jwilke   2672: 
1.77      jwilke   2673: \ also minimal
1.52      jwilke   2674: : [[ also unlock ;
1.78      jwilke   2675: : ]] previous previous also also ;
1.1       anton    2676: 
                   2677: unlock definitions also minimal
                   2678: : lock   lock ;
                   2679: lock
1.77      jwilke   2680: 
                   2681: \ load cross compiler extension defined in mach file
                   2682: 
                   2683: UNLOCK >CROSS
                   2684: 
                   2685: [IFDEF] extend-cross extend-cross [THEN]
                   2686: 
                   2687: LOCK

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