Annotation of gforth/cross.fs, revision 1.90

1.1       anton       1: \ CROSS.FS     The Cross-Compiler                      06oct92py
                      2: \ Idea and implementation: Bernd Paysan (py)
1.30      anton       3: 
1.86      anton       4: \ Copyright (C) 1995,1996,1997,1998,1999,2000 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
1.87      anton      20: \ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, 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 )
1.85      pazsan    477:     \ deletes phrases like "xy/.." out of our directory name 2dec97jaw
                    478:     over swap
                    479:     BEGIN  dup  WHILE
                    480:         dup >r '/ scan 2dup 4 min s" /../" compare 0=
                    481:         IF
                    482:             dup r> - >r 4 /string over r> + 4 -
                    483:             swap 2dup + >r move dup r> over -
                    484:         ELSE
                    485:             rdrop dup 1 min /string
                    486:         THEN
                    487:     REPEAT  drop over - ;
1.77      jwilke    488: 
                    489: : reworkdir ( -- )
                    490:   remove~+
                    491:   ofile count compact..
                    492:   nip ofile c! ;
                    493: 
                    494: : open-ofile ( -- fid ior )
                    495:     \G opens the file whose name is in ofile
                    496:     expandtopic reworkdir
                    497:     ofile count r/o open-file ;
                    498: 
                    499: : check-path ( adr1 len1 adr2 len2 -- fd 0 | 0 <>0 )
                    500:   0 ofile ! >r >r ofile place need/
                    501:   r> r> ofile +place
                    502:   open-ofile ;
                    503: 
                    504: : open-path-file ( addr1 u1 path-addr -- wfileid addr2 u2 0 | ior ) \ gforth
                    505:     \G Look in path @var{path-addr} for the file specified by @var{addr1 u1}.
                    506:     \G If found, the resulting path and an open file descriptor
                    507:     \G are returned. If the file is not found, @var{ior} is non-zero.
                    508:   >r
                    509:   2dup absolut-path?
                    510:   IF    rdrop
                    511:         ofile place open-ofile
                    512:        dup 0= IF >r ofile count r> THEN EXIT
                    513:   ELSE  r> path>counted
                    514:         BEGIN  next-path dup
                    515:         WHILE  5 pick 5 pick check-path
                    516:         0= IF >r 2drop 2drop r> ofile count 0 EXIT ELSE drop THEN
                    517:   REPEAT
                    518:         2drop 2drop 2drop -38
                    519:   THEN ;
                    520: 
                    521: : open-fpath-file ( addr1 u1 -- wfileid addr2 u2 0 | ior ) \ gforth
                    522:     \G Look in the Forth search path for the file specified by @var{addr1 u1}.
                    523:     \G If found, the resulting path and an open file descriptor
                    524:     \G are returned. If the file is not found, @var{ior} is non-zero.
                    525:     fpath open-path-file ;
                    526: 
                    527: fpath= ~+
                    528: 
                    529: [THEN]
                    530: 
                    531: \ \ --------------------       include require                 13may99jaw
                    532: 
                    533: >CROSS
                    534: 
                    535: : add-included-file ( adr len -- adr )
                    536:   dup >fl-name char+ allocate throw >r
                    537:   file-list @ r@ ! r@ file-list !
                    538:   r@ >fl-name place r> ;
                    539: 
                    540: : included? ( c-addr u -- f )
                    541:   file-list
                    542:   BEGIN        @ dup
                    543:   WHILE        >r 2dup r@ >fl-name count compare 0=
                    544:        IF rdrop 2drop true EXIT THEN
                    545:        r>
                    546:   REPEAT
                    547:   2drop drop false ;   
                    548: 
                    549: false DebugFlag showincludedfiles
                    550: 
                    551: : included1 ( fd adr u -- )
                    552: \ include file adr u / fd
                    553: \ we don't use fd with include-file, because the forth system
                    554: \ doesn't know the name of the file to get a nice error report
                    555:   [d?] showincludedfiles
                    556:   IF   cr ." Including: " 2dup type ." ..." THEN
                    557:   rot close-file throw
                    558:   source-desc >r
                    559:   add-included-file to source-desc 
                    560:   sourcefilename
                    561:   ['] included catch
                    562:   r> to source-desc 
                    563:   throw ;
                    564: 
                    565: : included ( adr len -- )
                    566:        cross-file-list to file-list
                    567:        open-fpath-file throw 
                    568:         included1 ;
                    569: 
                    570: : required ( adr len -- )
                    571:        cross-file-list to file-list
                    572:        open-fpath-file throw \ 2dup cr ." R:" type
                    573:        2dup included?
                    574:        IF      2drop close-file throw
                    575:        ELSE    included1
                    576:        THEN ;
                    577: 
                    578: : include bl word count included ;
                    579: 
                    580: : require bl word count required ;
                    581: 
1.78      jwilke    582: 0 [IF]
                    583: 
1.77      jwilke    584: also forth definitions previous
                    585: 
                    586: : included ( adr len -- ) included ;
                    587: 
                    588: : required ( adr len -- ) required ;
                    589: 
                    590: : include include ;
                    591: 
                    592: : require require ;
                    593: 
1.78      jwilke    594: [THEN]
                    595: 
1.77      jwilke    596: >CROSS
                    597: hex
                    598: 
                    599: \ \ --------------------        Error Handling                  05aug97jaw
                    600: 
                    601: \ Flags
                    602: 
                    603: also forth definitions  \ these values may be predefined before
                    604:                         \ the cross-compiler is loaded
                    605: 
                    606: false DefaultValue stack-warn           \ check on empty stack at any definition
                    607: false DefaultValue create-forward-warn   \ warn on forward declaration of created words
                    608: 
                    609: previous >CROSS
                    610: 
                    611: : .dec
                    612:   base @ decimal swap . base ! ;
                    613: 
                    614: : .sourcepos
                    615:   cr sourcefilename type ." :"
                    616:   sourceline# .dec ;
                    617: 
                    618: : warnhead
                    619: \G display error-message head
                    620: \G perhaps with linenumber and filename
                    621:   .sourcepos ." Warning: " ;
                    622: 
                    623: : empty? depth IF .sourcepos ." Stack not empty!"  THEN ;
                    624: 
                    625: stack-warn [IF]
                    626: : defempty? empty? ;
                    627: [ELSE]
                    628: : defempty? ; immediate
                    629: [THEN]
                    630: 
1.52      jwilke    631: \ \ GhostNames Ghosts                                  9may93jaw
                    632: 
                    633: \ second name source to search trough list
                    634: 
                    635: VARIABLE GhostNames
                    636: 0 GhostNames !
                    637: 
                    638: : GhostName ( -- addr )
1.79      jwilke    639:     align here GhostNames @ , GhostNames ! here 0 ,
1.52      jwilke    640:     bl word count
                    641:     \ 2dup type space
                    642:     string, \ !! cfalign ?
                    643:     align ;
                    644: 
                    645: \ Ghost Builder                                        06oct92py
                    646: 
                    647: \ <T T> new version with temp variable                 10may93jaw
                    648: 
                    649: VARIABLE VocTemp
                    650: 
                    651: : <T  get-current VocTemp ! also Ghosts definitions ;
                    652: : T>  previous VocTemp @ set-current ;
                    653: 
                    654: hex
                    655: 4711 Constant <fwd>             4712 Constant <res>
                    656: 4713 Constant <imm>             4714 Constant <do:>
1.75      jwilke    657: 4715 Constant <skip>
1.52      jwilke    658: 
                    659: \ iForth makes only immediate directly after create
                    660: \ make atonce trick! ?
                    661: 
                    662: Variable atonce atonce off
                    663: 
1.76      jwilke    664: : NoExec true ABORT" CROSS: Don't execute ghost, or immediate target word" ;
1.52      jwilke    665: 
                    666: : GhostHeader <fwd> , 0 , ['] NoExec , ;
                    667: 
                    668: : >magic ;             \ type of ghost
                    669: : >link cell+ ;                \ pointer where ghost is in target, or if unresolved
                    670:                        \ points to the where we have to resolve (linked-list)
                    671: : >exec cell+ cell+ ;  \ execution symantics (while target compiling) of ghost
                    672: : >end 3 cells + ;     \ room for additional tags
                    673:                        \ for builder (create, variable...) words the
                    674:                        \ execution symantics of words built are placed here
                    675: 
                    676: Variable executed-ghost \ last executed ghost, needed in tcreate and gdoes>
                    677: Variable last-ghost    \ last ghost that is created
                    678: Variable last-header-ghost \ last ghost definitions with header
                    679: 
                    680: : Make-Ghost ( "name" -- ghost )
                    681:   >in @ GhostName swap >in !
                    682:   <T Create atonce @ IF immediate atonce off THEN
                    683:   here tuck swap ! ghostheader T>
                    684:   dup last-ghost !
                    685:   DOES> dup executed-ghost ! >exec @ execute ;
                    686: 
                    687: \ ghost words                                          14oct92py
                    688: \                                          changed:    10may93py/jaw
                    689: 
                    690: : gfind   ( string -- ghost true/1 / string false )
                    691: \ searches for string in word-list ghosts
1.77      jwilke    692:   dup count [ ' ghosts >wordlist ] Literal search-wordlist
1.52      jwilke    693:   dup IF >r >body nip r>  THEN ;
                    694: 
                    695: : gdiscover ( xt -- ghost true | xt false )
                    696:   GhostNames
                    697:   BEGIN @ dup
                    698:   WHILE 2dup
                    699:         cell+ @ dup >magic @ <fwd> <>
                    700:         >r >link @ = r> and
                    701:         IF cell+ @ nip true EXIT THEN
                    702:   REPEAT
                    703:   drop false ;
                    704: 
                    705: VARIABLE Already
                    706: 
                    707: : ghost   ( "name" -- ghost )
                    708:   Already off
1.76      jwilke    709:   >in @  bl word gfind   IF  atonce off Already on nip EXIT  THEN
1.52      jwilke    710:   drop  >in !  Make-Ghost ;
                    711: 
                    712: : >ghostname ( ghost -- adr len )
                    713:   GhostNames
                    714:   BEGIN @ dup
                    715:   WHILE 2dup cell+ @ =
                    716:   UNTIL nip 2 cells + count
1.54      pazsan    717:   ELSE  2drop 
                    718:        \ true abort" CROSS: Ghostnames inconsistent"
                    719:        s" ?!?!?!"
1.52      jwilke    720:   THEN ;
                    721: 
1.78      jwilke    722: : .ghost ( ghost -- ) >ghostname type ;
                    723: 
1.77      jwilke    724: \ ' >ghostname ALIAS @name
1.52      jwilke    725: 
                    726: : forward? ( ghost -- flag )
                    727:   >magic @ <fwd> = ;
                    728: 
1.75      jwilke    729: : undefined? ( ghost -- flag )
                    730:   >magic @ dup <fwd> = swap <skip> = or ;
                    731: 
1.52      jwilke    732: \ Predefined ghosts                                    12dec92py
                    733: 
                    734: ghost 0=                                        drop
                    735: ghost branch    ghost ?branch                   2drop
                    736: ghost (do)      ghost (?do)                     2drop
                    737: ghost (for)                                     drop
                    738: ghost (loop)    ghost (+loop)                   2drop
                    739: ghost (next)                                    drop
                    740: ghost unloop    ghost ;S                        2drop
                    741: ghost lit       ghost (compile) ghost !         2drop drop
                    742: ghost (does>)   ghost noop                      2drop
                    743: ghost (.")      ghost (S")      ghost (ABORT")  2drop drop
                    744: ghost '                                         drop
                    745: ghost :docol    ghost :doesjump ghost :dodoes   2drop drop
1.54      pazsan    746: ghost :dovar                                   drop
1.52      jwilke    747: ghost over      ghost =         ghost drop      2drop drop
                    748: ghost - drop
1.54      pazsan    749: ghost 2drop drop
                    750: ghost 2dup drop
1.52      jwilke    751: 
                    752: \ \ Parameter for target systems                         06oct92py
                    753: 
                    754: \ we define it ans like...
                    755: wordlist Constant target-environment
                    756: 
                    757: VARIABLE env-current \ save information of current dictionary to restore with environ>
                    758: 
                    759: : >ENVIRON get-current env-current ! target-environment set-current ;
                    760: : ENVIRON> env-current @ set-current ; 
1.43      pazsan    761: 
1.48      anton     762: >TARGET
1.43      pazsan    763: 
1.67      jwilke    764: : environment? ( adr len -- [ x ] true | false )
1.52      jwilke    765:   target-environment search-wordlist 
                    766:   IF execute true ELSE false THEN ;
                    767: 
1.67      jwilke    768: : e? bl word count T environment? H 0= ABORT" environment variable not defined!" ;
1.52      jwilke    769: 
1.67      jwilke    770: : has?         bl word count T environment? H 
1.53      jwilke    771:        IF      \ environment variable is present, return its value
                    772:        ELSE    \ environment variable is not present, return false
1.75      jwilke    773:                false \ debug true ABORT" arg" 
1.53      jwilke    774:        THEN ;
1.52      jwilke    775: 
                    776: : $has? T environment? H IF ELSE false THEN ;
1.48      anton     777: 
1.54      pazsan    778: >ENVIRON get-order get-current swap 1+ set-order
                    779: true SetValue compiler
1.83      pazsan    780: true SetValue cross
1.54      pazsan    781: true SetValue standard-threading
                    782: >TARGET previous
1.52      jwilke    783: 
1.77      jwilke    784: 0
                    785: [IFDEF] mach-file mach-file count 1 [THEN]
                    786: [IFDEF] machine-file machine-file 1 [THEN]
                    787: [IF]   included hex drop
                    788: [ELSE]  cr ." No machine description!" ABORT 
                    789: [THEN]
1.43      pazsan    790: 
1.53      jwilke    791: >ENVIRON
                    792: 
1.54      pazsan    793: T has? ec H
                    794: [IF]
                    795: false DefaultValue relocate
                    796: false DefaultValue file
                    797: false DefaultValue OS
                    798: false DefaultValue prims
                    799: false DefaultValue floating
                    800: false DefaultValue glocals
                    801: false DefaultValue dcomps
                    802: false DefaultValue hash
                    803: false DefaultValue xconds
                    804: false DefaultValue header
1.88      pazsan    805: false DefaultValue new-input
1.54      pazsan    806: [THEN]
                    807: 
                    808: true DefaultValue interpreter
                    809: true DefaultValue ITC
                    810: false DefaultValue rom
1.73      jwilke    811: true DefaultValue standardthreading
1.53      jwilke    812: 
1.52      jwilke    813: >TARGET
1.53      jwilke    814: s" relocate" T environment? H 
                    815: [IF]   SetValue NIL
                    816: [ELSE] >ENVIRON T NIL H SetValue relocate
                    817: [THEN]
1.43      pazsan    818: 
                    819: >CROSS
                    820: 
1.52      jwilke    821: \ \ Create additional parameters                         19jan95py
1.19      pazsan    822: 
1.71      jwilke    823: \ currently cross only works for host machines with address-unit-bits
                    824: \ eual to 8 because of s! and sc!
                    825: \ but I start to query the environment just to modularize a little bit
                    826: 
                    827: : check-address-unit-bits ( -- )       
                    828: \      s" ADDRESS-UNIT-BITS" environment?
                    829: \      IF 8 <> ELSE true THEN
                    830: \      ABORT" ADDRESS-UNIT-BITS unknown or not equal to 8!"
                    831: 
                    832: \      shit, this doesn't work because environment? is only defined for 
                    833: \      gforth.fi and not kernl???.fi
                    834:        ;
                    835: 
                    836: check-address-unit-bits
                    837: 8 Constant bits/byte   \ we define: byte is address-unit
                    838: 
                    839: 1 bits/byte lshift Constant maxbyte 
1.77      jwilke    840: \ this sets byte size for the target machine, (probably right guess) jaw
1.67      jwilke    841: 
1.19      pazsan    842: T
1.71      jwilke    843: NIL                    Constant TNIL
                    844: cell                   Constant tcell
                    845: cell<<                 Constant tcell<<
                    846: cell>bit               Constant tcell>bit
                    847: bits/char              Constant tbits/char
                    848: bits/char H bits/byte T /      
                    849:                        Constant tchar
                    850: float                  Constant tfloat
                    851: 1 bits/char lshift     Constant tmaxchar
                    852: [IFUNDEF] bits/byte
                    853: 8                      Constant tbits/byte
                    854: [ELSE]
                    855: bits/byte              Constant tbits/byte
                    856: [THEN]
1.19      pazsan    857: H
1.81      pazsan    858: tbits/char bits/byte / Constant tbyte
1.71      jwilke    859: 
1.19      pazsan    860: 
1.48      anton     861: \ Variables                                            06oct92py
                    862: 
                    863: Variable image
                    864: Variable tlast    TNIL tlast !  \ Last name field
                    865: Variable tlastcfa \ Last code field
                    866: Variable tdoes    \ Resolve does> calls
                    867: Variable bit$
1.52      jwilke    868: 
                    869: \ statistics                                           10jun97jaw
                    870: 
                    871: Variable headers-named 0 headers-named !
                    872: Variable user-vars 0 user-vars !
                    873: 
1.67      jwilke    874: : target>bitmask-size ( u1 -- u2 )
                    875:   1- tcell>bit rshift 1+ ;
                    876: 
                    877: : allocatetarget ( size --- adr )
                    878:   dup allocate ABORT" CROSS: No memory for target"
                    879:   swap over swap erase ;
1.52      jwilke    880: 
1.54      pazsan    881: \ \ memregion.fs
1.52      jwilke    882: 
                    883: 
                    884: Variable last-defined-region    \ pointer to last defined region
                    885: Variable region-link            \ linked list with all regions
                    886: Variable mirrored-link          \ linked list for mirrored regions
                    887: 0 dup mirrored-link ! region-link !
                    888: 
                    889: 
1.67      jwilke    890: : >rname 6 cells + ;
                    891: : >rbm   5 cells + ;
                    892: : >rmem  4 cells + ;
                    893: : >rlink 3 cells + ;
1.52      jwilke    894: : >rdp 2 cells + ;
                    895: : >rlen cell+ ;
                    896: : >rstart ;
                    897: 
                    898: 
                    899: : region ( addr len -- )                \G create a new region
                    900:   \ check whether predefined region exists 
                    901:   save-input bl word find >r >r restore-input throw r> r> 0= 
                    902:   IF   \ make region
                    903:        drop
                    904:        save-input create restore-input throw
                    905:        here last-defined-region !
                    906:        over ( startaddr ) , ( length ) , ( dp ) ,
1.67      jwilke    907:        region-link linked 0 , 0 , bl word count string,
1.52      jwilke    908:   ELSE \ store new parameters in region
                    909:         bl word drop
                    910:        >body >r r@ last-defined-region !
1.67      jwilke    911:        r@ >rlen ! dup r@ >rstart ! r> >rdp !
1.52      jwilke    912:   THEN ;
                    913: 
                    914: : borders ( region -- startaddr endaddr ) \G returns lower and upper region border
1.67      jwilke    915:   dup >rstart @ swap >rlen @ over + ;
1.52      jwilke    916: 
                    917: : extent  ( region -- startaddr len )   \G returns the really used area
1.67      jwilke    918:   dup >rstart @ swap >rdp @ over - ;
1.52      jwilke    919: 
                    920: : area ( region -- startaddr totallen ) \G returns the total area
1.79      jwilke    921:   dup >rstart @ swap >rlen @ ;
1.52      jwilke    922: 
                    923: : mirrored                              \G mark a region as mirrored
                    924:   mirrored-link
1.68      jwilke    925:   align linked last-defined-region @ , ;
1.52      jwilke    926: 
1.67      jwilke    927: : .addr ( u -- )
                    928: \G prints a 16 or 32 Bit nice hex value
1.52      jwilke    929:   base @ >r hex
                    930:   tcell 2 u>
1.77      jwilke    931:   IF s>d <# # # # # [char] . hold # # # # #> type
1.52      jwilke    932:   ELSE s>d <# # # # # # #> type
                    933:   THEN r> base ! ;
                    934: 
                    935: : .regions                      \G display region statistic
                    936: 
                    937:   \ we want to list the regions in the right order
                    938:   \ so first collect all regions on stack
                    939:   0 region-link @
                    940:   BEGIN dup WHILE dup @ REPEAT drop
                    941:   BEGIN dup
1.67      jwilke    942:   WHILE cr
                    943:         0 >rlink - >r
                    944:         r@ >rname count tuck type
1.52      jwilke    945:         12 swap - 0 max spaces space
1.67      jwilke    946:         ." Start: " r@ >rstart @ dup .addr space
                    947:         ." End: " r@ >rlen @ + .addr space
                    948:         ." DP: " r> >rdp @ .addr
1.52      jwilke    949:   REPEAT drop
1.53      jwilke    950:   s" rom" T $has? H 0= ?EXIT
1.52      jwilke    951:   cr ." Mirrored:"
                    952:   mirrored-link @
                    953:   BEGIN dup
1.67      jwilke    954:   WHILE space dup cell+ @ >rname count type @
1.52      jwilke    955:   REPEAT drop cr
                    956:   ;
                    957: 
                    958: \ -------- predefined regions
                    959: 
                    960: 0 0 region address-space
                    961: \ total memory addressed and used by the target system
                    962: 
                    963: 0 0 region dictionary
                    964: \ rom area for the compiler
                    965: 
1.53      jwilke    966: T has? rom H
1.52      jwilke    967: [IF]
                    968: 0 0 region ram-dictionary mirrored
                    969: \ ram area for the compiler
                    970: [ELSE]
                    971: ' dictionary ALIAS ram-dictionary
                    972: [THEN]
                    973: 
                    974: 0 0 region return-stack
                    975: 
                    976: 0 0 region data-stack
                    977: 
                    978: 0 0 region tib-region
                    979: 
                    980: ' dictionary ALIAS rom-dictionary
                    981: 
                    982: 
                    983: : setup-target ( -- )   \G initialize targets memory space
1.53      jwilke    984:   s" rom" T $has? H
1.52      jwilke    985:   IF  \ check for ram and rom...
1.72      jwilke    986:       \ address-space area nip 0<>
1.67      jwilke    987:       ram-dictionary area nip 0<>
                    988:       rom-dictionary area nip 0<>
1.72      jwilke    989:       and 0=
1.52      jwilke    990:       ABORT" CROSS: define address-space, rom- , ram-dictionary, with rom-support!"
                    991:   THEN
                    992:   address-space area nip
                    993:   IF
                    994:       address-space area
                    995:   ELSE
                    996:       dictionary area
                    997:   THEN
1.67      jwilke    998:   nip 0=
1.52      jwilke    999:   ABORT" CROSS: define at least address-space or dictionary!!"
1.67      jwilke   1000: 
                   1001:   \ allocate target for each region
                   1002:   region-link
                   1003:   BEGIN @ dup
                   1004:   WHILE dup
                   1005:         0 >rlink - >r
                   1006:         r@ >rlen @
                   1007:         IF      \ allocate mem
                   1008:                 r@ >rlen @ dup
                   1009: 
                   1010:                 allocatetarget dup image !
                   1011:                 r@ >rmem !
                   1012: 
                   1013:                 target>bitmask-size allocatetarget
1.72      jwilke   1014:                 dup bit$ !
1.67      jwilke   1015:                 r> >rbm !
                   1016: 
                   1017:         ELSE    r> drop THEN
1.72      jwilke   1018:    REPEAT drop ;
                   1019: 
                   1020: \ MakeKernal                                                           22feb99jaw
                   1021: 
                   1022: : makekernel ( targetsize -- targetsize )
                   1023:   dup dictionary >rlen ! setup-target ;
                   1024: 
                   1025: >MINIMAL
                   1026: : makekernel makekernel ;
                   1027: >CROSS
1.52      jwilke   1028: 
1.54      pazsan   1029: \ \ switched tdp for rom support                               03jun97jaw
1.52      jwilke   1030: 
                   1031: \ second value is here to store some maximal value for statistics
                   1032: \ tempdp is also embedded here but has nothing to do with rom support
                   1033: \ (needs switched dp)
                   1034: 
                   1035: variable tempdp        0 ,     \ temporary dp for resolving
                   1036: variable tempdp-save
                   1037: 
                   1038: 0 [IF]
                   1039: variable romdp 0 ,      \ Dictionary-Pointer for ramarea
                   1040: variable ramdp 0 ,      \ Dictionary-Pointer for romarea
                   1041: 
                   1042: \
                   1043: variable sramdp                \ start of ram-area for forth
                   1044: variable sromdp                \ start of rom-area for forth
                   1045: 
                   1046: [THEN]
                   1047: 
                   1048: 
                   1049: 0 value tdp
                   1050: variable fixed         \ flag: true: no automatic switching
                   1051:                        \       false: switching is done automatically
                   1052: 
                   1053: \ Switch-Policy:
                   1054: \
                   1055: \ a header is always compiled into rom
                   1056: \ after a created word (create and variable) compilation goes to ram
                   1057: \
                   1058: \ Be careful: If you want to make the data behind create into rom
                   1059: \ you have to put >rom before create!
                   1060: 
                   1061: variable constflag constflag off
                   1062: 
1.67      jwilke   1063: : activate ( region -- )
                   1064: \G next code goes to this region
                   1065:   >rdp to tdp ;
                   1066: 
1.52      jwilke   1067: : (switchram)
1.53      jwilke   1068:   fixed @ ?EXIT s" rom" T $has? H 0= ?EXIT
1.67      jwilke   1069:   ram-dictionary activate ;
1.52      jwilke   1070: 
                   1071: : switchram
                   1072:   constflag @
                   1073:   IF constflag off ELSE (switchram) THEN ;
                   1074: 
                   1075: : switchrom
1.67      jwilke   1076:   fixed @ ?EXIT rom-dictionary activate ;
1.52      jwilke   1077: 
                   1078: : >tempdp ( addr -- ) 
                   1079:   tdp tempdp-save ! tempdp to tdp tdp ! ;
                   1080: : tempdp> ( -- )
                   1081:   tempdp-save @ to tdp ;
                   1082: 
                   1083: : >ram  fixed off (switchram) fixed on ;
                   1084: : >rom  fixed off switchrom fixed on ;
                   1085: : >auto fixed off switchrom ;
                   1086: 
                   1087: 
                   1088: 
                   1089: \ : romstart dup sromdp ! romdp ! ;
                   1090: \ : ramstart dup sramdp ! ramdp ! ;
                   1091: 
1.67      jwilke   1092: \ default compilation goes to rom
1.52      jwilke   1093: \ when romable support is off, only the rom switch is used (!!)
                   1094: >auto
                   1095: 
1.48      anton    1096: : there  tdp @ ;
                   1097: 
1.52      jwilke   1098: >TARGET
1.48      anton    1099: 
1.52      jwilke   1100: \ \ Target Memory Handling
1.1       anton    1101: 
                   1102: \ Byte ordering and cell size                          06oct92py
                   1103: 
1.19      pazsan   1104: : cell+         tcell + ;
                   1105: : cells         tcell<< lshift ;
1.71      jwilke   1106: : chars         tchar * ;
                   1107: : char+                tchar + ;
1.19      pazsan   1108: : floats       tfloat * ;
1.6       anton    1109:     
1.1       anton    1110: >CROSS
1.19      pazsan   1111: : cell/         tcell<< rshift ;
1.1       anton    1112: >TARGET
                   1113: 20 CONSTANT bl
1.52      jwilke   1114: \ TNIL Constant NIL
1.1       anton    1115: 
                   1116: >CROSS
                   1117: 
1.20      pazsan   1118: bigendian
                   1119: [IF]
1.52      jwilke   1120:    : S!  ( n addr -- )  >r s>d r> tcell bounds swap 1-
1.20      pazsan   1121:      DO  maxbyte ud/mod rot I c!  -1 +LOOP  2drop ;
1.52      jwilke   1122:    : S@  ( addr -- n )  >r 0 0 r> tcell bounds
1.20      pazsan   1123:      DO  maxbyte * swap maxbyte um* rot + swap I c@ + swap  LOOP d>s ;
1.57      pazsan   1124:    : Sc!  ( n addr -- )  >r s>d r> tchar bounds swap 1-
                   1125:      DO  maxbyte ud/mod rot I c!  -1 +LOOP  2drop ;
                   1126:    : Sc@  ( addr -- n )  >r 0 0 r> tchar bounds
                   1127:      DO  maxbyte * swap maxbyte um* rot + swap I c@ + swap  LOOP d>s ;
1.19      pazsan   1128: [ELSE]
1.52      jwilke   1129:    : S!  ( n addr -- )  >r s>d r> tcell bounds
1.20      pazsan   1130:      DO  maxbyte ud/mod rot I c!  LOOP  2drop ;
1.52      jwilke   1131:    : S@  ( addr -- n )  >r 0 0 r> tcell bounds swap 1-
1.20      pazsan   1132:      DO  maxbyte * swap maxbyte um* rot + swap I c@ + swap  -1 +LOOP d>s ;
1.57      pazsan   1133:    : Sc!  ( n addr -- )  >r s>d r> tchar bounds
                   1134:      DO  maxbyte ud/mod rot I c!  LOOP  2drop ;
                   1135:    : Sc@  ( addr -- n )  >r 0 0 r> tchar bounds swap 1-
                   1136:      DO  maxbyte * swap maxbyte um* rot + swap I c@ + swap  -1 +LOOP d>s ;
1.1       anton    1137: [THEN]
                   1138: 
1.67      jwilke   1139: : taddr>region ( taddr -- region | 0 )
                   1140: \G finds for a target-address the correct region
                   1141: \G returns 0 if taddr is not in range of a target memory region
                   1142:   region-link
                   1143:   BEGIN @ dup
                   1144:   WHILE dup >r
                   1145:         0 >rlink - >r
                   1146:         r@ >rlen @
                   1147:         IF      dup r@ borders within
                   1148:                 IF r> r> drop nip EXIT THEN
                   1149:         THEN
                   1150:         r> drop
                   1151:         r>
                   1152:   REPEAT
                   1153:   2drop 0 ;
                   1154: 
                   1155: : (>regionimage) ( taddr -- 'taddr )
                   1156:   dup
                   1157:   \ find region we want to address
                   1158:   taddr>region dup 0= ABORT" Address out of range!"
                   1159:   >r
                   1160:   \ calculate offset in region
                   1161:   r@ >rstart @ -
                   1162:   \ add regions real address in our memory
                   1163:   r> >rmem @ + ;
                   1164: 
1.1       anton    1165: \ Bit string manipulation                               06oct92py
                   1166: \                                                       9may93jaw
                   1167: CREATE Bittable 80 c, 40 c, 20 c, 10 c, 8 c, 4 c, 2 c, 1 c,
                   1168: : bits ( n -- n ) chars Bittable + c@ ;
                   1169: 
                   1170: : >bit ( addr n -- c-addr mask ) 8 /mod rot + swap bits ;
                   1171: : +bit ( addr n -- )  >bit over c@ or swap c! ;
1.4       pazsan   1172: : -bit ( addr n -- )  >bit invert over c@ and swap c! ;
1.67      jwilke   1173: 
1.84      jwilke   1174: : (relon) ( taddr -- )  
                   1175:   [ [IFDEF] fd-relocation-table ]
                   1176:   s" +" fd-relocation-table write-file throw
                   1177:   dup s>d <# #s #> fd-relocation-table write-line throw
                   1178:   [ [THEN] ]
                   1179:   bit$ @ swap cell/ +bit ;
                   1180: 
                   1181: : (reloff) ( taddr -- ) 
                   1182:   [ [IFDEF] fd-relocation-table ]
                   1183:   s" -" fd-relocation-table write-file throw
                   1184:   dup s>d <# #s #> fd-relocation-table write-line throw
                   1185:   [ [THEN] ]
                   1186:   bit$ @ swap cell/ -bit ;
1.67      jwilke   1187: 
                   1188: : (>image) ( taddr -- absaddr ) image @ + ;
                   1189: 
                   1190: DEFER >image
                   1191: DEFER relon
                   1192: DEFER reloff
                   1193: DEFER correcter
                   1194: 
                   1195: T has? relocate H
                   1196: [IF]
                   1197: ' (relon) IS relon
                   1198: ' (reloff) IS reloff
                   1199: ' (>image) IS >image
                   1200: [ELSE]
                   1201: ' drop IS relon
                   1202: ' drop IS reloff
1.68      jwilke   1203: ' (>regionimage) IS >image
1.67      jwilke   1204: [THEN]
1.1       anton    1205: 
                   1206: \ Target memory access                                 06oct92py
                   1207: 
                   1208: : align+  ( taddr -- rest )
1.48      anton    1209:     tcell tuck 1- and - [ tcell 1- ] Literal and ;
1.22      anton    1210: : cfalign+  ( taddr -- rest )
1.39      pazsan   1211:     \ see kernel.fs:cfaligned
1.43      pazsan   1212:     /maxalign tuck 1- and - [ /maxalign 1- ] Literal and ;
1.1       anton    1213: 
                   1214: >TARGET
                   1215: : aligned ( taddr -- ta-addr )  dup align+ + ;
                   1216: \ assumes cell alignment granularity (as GNU C)
                   1217: 
1.22      anton    1218: : cfaligned ( taddr1 -- taddr2 )
1.39      pazsan   1219:     \ see kernel.fs
1.22      anton    1220:     dup cfalign+ + ;
                   1221: 
1.52      jwilke   1222: : @  ( taddr -- w )     >image S@ ;
                   1223: : !  ( w taddr -- )     >image S! ;
1.57      pazsan   1224: : c@ ( taddr -- char )  >image Sc@ ;
                   1225: : c! ( char taddr -- )  >image Sc! ;
1.7       anton    1226: : 2@ ( taddr -- x1 x2 ) T dup cell+ @ swap @ H ;
1.82      pazsan   1227: : 2! ( x1 x2 taddr -- ) T tuck ! cell+ ! H ;
1.1       anton    1228: 
                   1229: \ Target compilation primitives                        06oct92py
                   1230: \ included A!                                          16may93jaw
                   1231: 
                   1232: : here  ( -- there )    there ;
                   1233: : allot ( n -- )        tdp +! ;
1.78      jwilke   1234: : ,     ( w -- )        T here H tcell T allot  ! H ;
                   1235: : c,    ( char -- )     T here H tchar T allot c! H ;
                   1236: : align ( -- )          T here H align+ 0 ?DO  bl T c, H tchar +LOOP ;
1.22      anton    1237: : cfalign ( -- )
1.78      jwilke   1238:     T here H cfalign+ 0 ?DO  bl T c, H tchar +LOOP ;
1.1       anton    1239: 
1.71      jwilke   1240: : >address             dup 0>= IF tbyte / THEN ; \ ?? jaw 
1.59      pazsan   1241: : A!                    swap >address swap dup relon T ! H ;
                   1242: : A,    ( w -- )        >address T here H relon T , H ;
1.1       anton    1243: 
                   1244: >CROSS
                   1245: 
1.52      jwilke   1246: : tcmove ( source dest len -- )
                   1247: \G cmove in target memory
1.57      pazsan   1248:   tchar * bounds
1.52      jwilke   1249:   ?DO  dup T c@ H I T c! H 1+
1.57      pazsan   1250:   tchar +LOOP  drop ;
1.1       anton    1251: 
1.67      jwilke   1252: \ \ Load Assembler
                   1253: 
1.1       anton    1254: >TARGET
1.74      jwilke   1255: H also Forth definitions
1.1       anton    1256: 
1.77      jwilke   1257: : X    bl word count [ ' target >wordlist ] Literal search-wordlist
1.52      jwilke   1258:        IF      state @ IF compile,
                   1259:                ELSE execute THEN
1.77      jwilke   1260:        ELSE    -1 ABORT" Cross: access method not supported!"
                   1261:        THEN ; immediate
1.1       anton    1262: 
1.52      jwilke   1263: [IFDEF] asm-include asm-include [THEN] hex
1.1       anton    1264: 
1.52      jwilke   1265: previous
                   1266: >CROSS H
1.1       anton    1267: 
1.52      jwilke   1268: \ \ --------------------        Compiler Plug Ins               01aug97jaw
1.1       anton    1269: 
1.54      pazsan   1270: \  Compiler States
                   1271: 
                   1272: Variable comp-state
                   1273: 0 Constant interpreting
                   1274: 1 Constant compiling
                   1275: 2 Constant resolving
                   1276: 3 Constant assembling
                   1277: 
1.52      jwilke   1278: Defer lit, ( n -- )
                   1279: Defer alit, ( n -- )
1.54      pazsan   1280: 
                   1281: Defer branch, ( target-addr -- )       \ compiles a branch
                   1282: Defer ?branch, ( target-addr -- )      \ compiles a ?branch
                   1283: Defer branchmark, ( -- branch-addr )   \ reserves room for a branch
                   1284: Defer ?branchmark, ( -- branch-addr )  \ reserves room for a ?branch
                   1285: Defer ?domark, ( -- branch-addr )      \ reserves room for a ?do branch
                   1286: Defer branchto, ( -- )                 \ actual program position is target of a branch (do e.g. alignment)
                   1287: Defer branchtoresolve, ( branch-addr -- ) \ resolves a forward reference from branchmark
                   1288: Defer branchfrom, ( -- )               \ ?!
                   1289: Defer branchtomark, ( -- target-addr ) \ marks a branch destination
                   1290: 
1.52      jwilke   1291: Defer colon, ( tcfa -- )               \ compiles call to tcfa at current position
1.54      pazsan   1292: Defer colonmark, ( -- addr )           \ marks a colon call
1.52      jwilke   1293: Defer colon-resolve ( tcfa addr -- )
1.54      pazsan   1294: 
1.52      jwilke   1295: Defer addr-resolve ( target-addr addr -- )
1.54      pazsan   1296: Defer doer-resolve ( ghost res-pnt target-addr addr -- ghost res-pnt )
                   1297: 
                   1298: Defer do,      ( -- do-token )
                   1299: Defer ?do,     ( -- ?do-token )
                   1300: Defer for,     ( -- for-token )
                   1301: Defer loop,    ( do-token / ?do-token -- )
                   1302: Defer +loop,   ( do-token / ?do-token -- )
                   1303: Defer next,    ( for-token )
1.1       anton    1304: 
1.52      jwilke   1305: [IFUNDEF] ca>native
                   1306: defer ca>native        
                   1307: [THEN]
1.1       anton    1308: 
1.52      jwilke   1309: >TARGET
                   1310: DEFER >body             \ we need the system >body
                   1311:                        \ and the target >body
                   1312: >CROSS
                   1313: T 2 cells H VALUE xt>body
1.54      pazsan   1314: DEFER doprim,  \ compiles start of a primitive
                   1315: DEFER docol,           \ compiles start of a colon definition
1.52      jwilke   1316: DEFER doer,            
                   1317: DEFER fini,      \ compiles end of definition ;s
                   1318: DEFER doeshandler,
                   1319: DEFER dodoes,
                   1320: 
                   1321: DEFER ]comp     \ starts compilation
                   1322: DEFER comp[     \ ends compilation
                   1323: 
1.54      pazsan   1324: : (cc) T a, H ;                                        ' (cc) IS colon,
                   1325: 
                   1326: : (cr) >tempdp ]comp colon, comp[ tempdp> ;    ' (cr) IS colon-resolve
                   1327: : (ar) T ! H ;                                 ' (ar) IS addr-resolve
                   1328: : (dr)  ( ghost res-pnt target-addr addr )
                   1329:        >tempdp drop over 
                   1330:        dup >magic @ <do:> =
                   1331:        IF      doer,
                   1332:        ELSE    dodoes,
                   1333:        THEN 
                   1334:        tempdp> ;                               ' (dr) IS doer-resolve
                   1335: 
                   1336: : (cm) ( -- addr )
                   1337:     T here align H
                   1338:     -1 colon, ;                                        ' (cm) IS colonmark,
1.1       anton    1339: 
1.52      jwilke   1340: >TARGET
                   1341: : compile, colon, ;
                   1342: >CROSS
1.1       anton    1343: 
1.52      jwilke   1344: \ resolve structure
1.1       anton    1345: 
1.52      jwilke   1346: : >next ;              \ link to next field
1.54      pazsan   1347: : >tag cell+ ;         \ indecates type of reference: 0: call, 1: address, 2: doer
1.53      jwilke   1348: : >taddr cell+ cell+ ; 
1.52      jwilke   1349: : >ghost 3 cells + ;
1.53      jwilke   1350: : >file 4 cells + ;
                   1351: : >line 5 cells + ;
1.48      anton    1352: 
1.54      pazsan   1353: : (refered) ( ghost addr tag -- )
                   1354: \G creates a reference to ghost at address taddr
                   1355:     rot >r here r@ >link @ , r> >link ! 
                   1356:     ( taddr tag ) ,
                   1357:     ( taddr ) , 
                   1358:     last-header-ghost @ , 
                   1359:     loadfile , 
                   1360:     sourceline# , 
                   1361:   ;
                   1362: 
1.52      jwilke   1363: : refered ( ghost tag -- )
1.53      jwilke   1364: \G creates a resolve structure
1.54      pazsan   1365:     T here aligned H swap (refered)
                   1366:   ;
                   1367: 
                   1368: : killref ( addr ghost -- )
                   1369: \G kills a forward reference to ghost at position addr
                   1370: \G this is used to eleminate a :dovar refence after making a DOES>
                   1371:     dup >magic @ <fwd> <> IF 2drop EXIT THEN
                   1372:     swap >r >link
                   1373:     BEGIN dup @ dup  ( addr last this )
                   1374:     WHILE dup >taddr @ r@ =
                   1375:         IF   @ over !
                   1376:         ELSE nip THEN
                   1377:     REPEAT rdrop 2drop 
1.53      jwilke   1378:   ;
1.48      anton    1379: 
1.52      jwilke   1380: Defer resolve-warning
1.1       anton    1381: 
1.52      jwilke   1382: : reswarn-test ( ghost res-struct -- ghost res-struct )
1.78      jwilke   1383:   over cr ." Resolving " .ghost dup ."  in " >ghost @ .ghost ;
1.1       anton    1384: 
1.52      jwilke   1385: : reswarn-forward ( ghost res-struct -- ghost res-struct )
1.78      jwilke   1386:   over warnhead .ghost dup ."  is referenced in " 
                   1387:   >ghost @ .ghost ;
1.1       anton    1388: 
1.52      jwilke   1389: \ ' reswarn-test IS resolve-warning
                   1390:  
1.1       anton    1391: \ resolve                                              14oct92py
                   1392: 
1.54      pazsan   1393:  : resolve-loop ( ghost resolve-list tcfa -- )
                   1394:     >r
                   1395:     BEGIN dup WHILE 
                   1396: \        dup >tag @ 2 = IF reswarn-forward THEN
                   1397:          resolve-warning 
                   1398:          r@ over >taddr @ 
                   1399:          2 pick >tag @
                   1400:          CASE  0 OF colon-resolve ENDOF
                   1401:                1 OF addr-resolve ENDOF
                   1402:                2 OF doer-resolve ENDOF
                   1403:          ENDCASE
                   1404:          @ \ next list element
                   1405:     REPEAT 2drop rdrop 
                   1406:   ;
1.52      jwilke   1407: 
                   1408: \ : resolve-loop ( ghost tcfa -- ghost tcfa )
                   1409: \  >r dup >link @
                   1410: \  BEGIN  dup  WHILE  dup T @ H r@ rot T ! H REPEAT  drop r> ;
1.1       anton    1411: 
                   1412: \ exists                                                9may93jaw
                   1413: 
1.52      jwilke   1414: Variable TWarnings
                   1415: TWarnings on
                   1416: Variable Exists-Warnings
                   1417: Exists-Warnings on
                   1418: 
1.1       anton    1419: : exists ( ghost tcfa -- )
                   1420:   over GhostNames
                   1421:   BEGIN @ dup
                   1422:   WHILE 2dup cell+ @ =
                   1423:   UNTIL
1.52      jwilke   1424:         2 cells + count
                   1425:         TWarnings @ Exists-Warnings @ and
                   1426:         IF warnhead type ."  exists"
                   1427:         ELSE 2drop THEN
                   1428:         drop swap >link !
1.24      pazsan   1429:   ELSE  true abort" CROSS: Ghostnames inconsistent "
1.1       anton    1430:   THEN ;
                   1431: 
                   1432: : resolve  ( ghost tcfa -- )
1.54      pazsan   1433: \G resolve referencies to ghost with tcfa
                   1434:     \ is ghost resolved?, second resolve means another definition with the
                   1435:     \ same name
1.75      jwilke   1436:     over undefined? 0= IF  exists EXIT THEN
1.54      pazsan   1437:     \ get linked-list
                   1438:     swap >r r@ >link @ swap \ ( list tcfa R: ghost )
                   1439:     \ mark ghost as resolved
                   1440:     dup r@ >link ! <res> r@ >magic !
                   1441:     \ loop through forward referencies
                   1442:     r> -rot 
                   1443:     comp-state @ >r Resolving comp-state !
                   1444:     resolve-loop 
                   1445:     r> comp-state !
                   1446: 
                   1447:     ['] noop IS resolve-warning 
1.52      jwilke   1448:   ;
1.1       anton    1449: 
                   1450: \ gexecute ghost,                                      01nov92py
                   1451: 
1.52      jwilke   1452: : is-forward   ( ghost -- )
1.54      pazsan   1453:   colonmark, 0 (refered) ; \ compile space for call
1.52      jwilke   1454: 
                   1455: : is-resolved   ( ghost -- )
                   1456:   >link @ colon, ; \ compile-call
                   1457: 
                   1458: : gexecute   ( ghost -- )
                   1459:   dup @ <fwd> = IF  is-forward  ELSE  is-resolved  THEN ;
                   1460: 
                   1461: : addr,  ( ghost -- )
                   1462:   dup @ <fwd> = IF  1 refered 0 T a, H ELSE >link @ T a, H THEN ;
                   1463: 
                   1464: \ !! : ghost,     ghost  gexecute ;
1.1       anton    1465: 
                   1466: \ .unresolved                                          11may93jaw
                   1467: 
                   1468: variable ResolveFlag
                   1469: 
                   1470: \ ?touched                                             11may93jaw
                   1471: 
1.52      jwilke   1472: : ?touched ( ghost -- flag ) dup forward? swap >link @
1.1       anton    1473:                                0 <> and ;
                   1474: 
1.53      jwilke   1475: : .forwarddefs ( ghost -- )
                   1476:        ."  appeared in:"
                   1477:        >link
                   1478:        BEGIN   @ dup
                   1479:        WHILE   cr 5 spaces
1.78      jwilke   1480:                dup >ghost @ .ghost
1.53      jwilke   1481:                ."  file " dup >file @ ?dup IF count type ELSE ." CON" THEN
                   1482:                ."  line " dup >line @ .dec
                   1483:        REPEAT 
                   1484:        drop ;
                   1485: 
1.1       anton    1486: : ?resolved  ( ghostname -- )
                   1487:   dup cell+ @ ?touched
1.53      jwilke   1488:   IF   dup 
                   1489:        cell+ cell+ count cr type ResolveFlag on 
                   1490:        cell+ @ .forwarddefs
                   1491:   ELSE         drop 
                   1492:   THEN ;
1.1       anton    1493: 
                   1494: : .unresolved  ( -- )
                   1495:   ResolveFlag off cr ." Unresolved: "
                   1496:   Ghostnames
                   1497:   BEGIN @ dup
                   1498:   WHILE dup ?resolved
1.10      anton    1499:   REPEAT drop ResolveFlag @
                   1500:   IF
1.48      anton    1501:       -1 abort" Unresolved words!"
1.10      anton    1502:   ELSE
                   1503:       ." Nothing!"
                   1504:   THEN
                   1505:   cr ;
1.1       anton    1506: 
1.52      jwilke   1507: : .stats
                   1508:   base @ >r decimal
                   1509:   cr ." named Headers: " headers-named @ . 
                   1510:   r> base ! ;
                   1511: 
1.79      jwilke   1512: >MINIMAL
                   1513: 
                   1514: : .unresolved .unresolved ;
                   1515: 
1.1       anton    1516: >CROSS
                   1517: \ Header states                                        12dec92py
                   1518: 
1.90    ! pazsan   1519: bigendian [IF] 0 [ELSE] tcell 1- [THEN] Constant flag+
        !          1520: : flag! ( w -- )   tlast @ flag+ + dup >r T c@ xor r> c! H ;
1.1       anton    1521: 
                   1522: VARIABLE ^imm
                   1523: 
1.89      anton    1524: \ !! should be target wordsize specific
1.90    ! pazsan   1525: $80 constant alias-mask
        !          1526: $40 constant immediate-mask
        !          1527: $20 constant restrict-mask
1.89      anton    1528: 
1.1       anton    1529: >TARGET
1.89      anton    1530: : immediate     immediate-mask flag!
1.18      pazsan   1531:                 ^imm @ @ dup <imm> = IF  drop  EXIT  THEN
1.1       anton    1532:                 <res> <> ABORT" CROSS: Cannot immediate a unresolved word"
                   1533:                 <imm> ^imm @ ! ;
1.89      anton    1534: : restrict      restrict-mask flag! ;
1.52      jwilke   1535: 
1.54      pazsan   1536: : isdoer       
                   1537: \G define a forth word as doer, this makes obviously only sence on
                   1538: \G forth processors such as the PSC1000
                   1539:                <do:> last-header-ghost @ >magic ! ;
1.1       anton    1540: >CROSS
                   1541: 
                   1542: \ Target Header Creation                               01nov92py
                   1543: 
1.52      jwilke   1544: >TARGET
1.1       anton    1545: : string,  ( addr count -- )
1.89      anton    1546:     dup T c, H bounds  ?DO  I c@ T c, H  LOOP ;
                   1547: : lstring, ( addr count -- )
                   1548:     dup T , H bounds  ?DO  I c@ T c, H  LOOP ;
                   1549: : name,  ( "name" -- )  bl word count T lstring, cfalign H ;
1.1       anton    1550: : view,   ( -- ) ( dummy ) ;
1.52      jwilke   1551: >CROSS
1.1       anton    1552: 
1.25      pazsan   1553: \ Target Document Creation (goes to crossdoc.fd)       05jul95py
                   1554: 
1.55      pazsan   1555: s" ./doc/crossdoc.fd" r/w create-file throw value doc-file-id
1.25      pazsan   1556: \ contains the file-id of the documentation file
                   1557: 
1.40      pazsan   1558: : T-\G ( -- )
1.25      pazsan   1559:     source >in @ /string doc-file-id write-line throw
1.40      pazsan   1560:     postpone \ ;
1.25      pazsan   1561: 
1.39      pazsan   1562: Variable to-doc  to-doc on
1.25      pazsan   1563: 
                   1564: : cross-doc-entry  ( -- )
                   1565:     to-doc @ tlast @ 0<> and   \ not an anonymous (i.e. noname) header
                   1566:     IF
                   1567:        s" " doc-file-id write-line throw
                   1568:        s" make-doc " doc-file-id write-file throw
1.77      jwilke   1569: 
                   1570:        tlast @ >image count 1F and doc-file-id write-file throw
1.25      pazsan   1571:        >in @
                   1572:        [char] ( parse 2drop
                   1573:        [char] ) parse doc-file-id write-file throw
                   1574:        s"  )" doc-file-id write-file throw
                   1575:        [char] \ parse 2drop                                    
1.40      pazsan   1576:        T-\G
1.25      pazsan   1577:        >in !
1.39      pazsan   1578:     THEN ;
1.25      pazsan   1579: 
1.28      pazsan   1580: \ Target TAGS creation
                   1581: 
1.39      pazsan   1582: s" kernel.TAGS" r/w create-file throw value tag-file-id
1.28      pazsan   1583: \ contains the file-id of the tags file
                   1584: 
                   1585: Create tag-beg 2 c,  7F c, bl c,
                   1586: Create tag-end 2 c,  bl c, 01 c,
                   1587: Create tag-bof 1 c,  0C c,
                   1588: 
                   1589: 2variable last-loadfilename 0 0 last-loadfilename 2!
                   1590:            
                   1591: : put-load-file-name ( -- )
1.77      jwilke   1592:     sourcefilename last-loadfilename 2@ d<>
1.28      pazsan   1593:     IF
                   1594:        tag-bof count tag-file-id write-line throw
1.31      anton    1595:        sourcefilename 2dup
1.28      pazsan   1596:        tag-file-id write-file throw
                   1597:        last-loadfilename 2!
                   1598:        s" ,0" tag-file-id write-line throw
                   1599:     THEN ;
                   1600: 
                   1601: : cross-tag-entry  ( -- )
                   1602:     tlast @ 0<>        \ not an anonymous (i.e. noname) header
                   1603:     IF
                   1604:        put-load-file-name
                   1605:        source >in @ min tag-file-id write-file throw
                   1606:        tag-beg count tag-file-id write-file throw
1.77      jwilke   1607:        tlast @ >image count 1F and tag-file-id write-file throw
1.28      pazsan   1608:        tag-end count tag-file-id write-file throw
1.31      anton    1609:        base @ decimal sourceline# 0 <# #s #> tag-file-id write-file throw
1.28      pazsan   1610: \      >in @ 0 <# #s [char] , hold #> tag-file-id write-line throw
                   1611:        s" ,0" tag-file-id write-line throw
                   1612:        base !
                   1613:     THEN ;
                   1614: 
1.43      pazsan   1615: \ Check for words
                   1616: 
                   1617: Defer skip? ' false IS skip?
                   1618: 
1.75      jwilke   1619: : skipdef ( <name> -- )
1.79      jwilke   1620: \G skip definition of an undefined word in undef-words and
                   1621: \G all-words mode
1.75      jwilke   1622:     ghost dup forward?
                   1623:     IF  >magic <skip> swap !
                   1624:     ELSE drop THEN ;
                   1625: 
1.77      jwilke   1626: : tdefined? ( -- flag ) \ name
1.75      jwilke   1627:     ghost undefined? 0= ;
                   1628: 
                   1629: : defined2? ( -- flag ) \ name
                   1630: \G return true for anything else than forward, even for <skip>
                   1631: \G that's what we want
1.52      jwilke   1632:     ghost forward? 0= ;
1.43      pazsan   1633: 
1.79      jwilke   1634: : forced? ( -- flag ) \ name
                   1635: \G return ture if it is a foreced skip with defskip
                   1636:     ghost >magic @ <skip> = ;
                   1637: 
1.43      pazsan   1638: : needed? ( -- flag ) \ name
1.48      anton    1639: \G returns a false flag when
                   1640: \G a word is not defined
                   1641: \G a forward reference exists
                   1642: \G so the definition is not skipped!
                   1643:     bl word gfind
1.75      jwilke   1644:     IF dup undefined?
1.48      anton    1645:        nip
                   1646:        0=
                   1647:     ELSE  drop true  THEN ;
1.43      pazsan   1648: 
1.44      pazsan   1649: : doer? ( -- flag ) \ name
                   1650:     ghost >magic @ <do:> = ;
                   1651: 
1.43      pazsan   1652: : skip-defs ( -- )
                   1653:     BEGIN  refill  WHILE  source -trailing nip 0= UNTIL  THEN ;
                   1654: 
1.28      pazsan   1655: \ Target header creation
                   1656: 
1.54      pazsan   1657: Variable NoHeaderFlag
                   1658: NoHeaderFlag off
1.1       anton    1659: 
1.54      pazsan   1660: : 0.r ( n1 n2 -- ) 
                   1661:     base @ >r hex 
                   1662:     0 swap <# 0 ?DO # LOOP #> type 
                   1663:     r> base ! ;
1.84      jwilke   1664: 
                   1665: : .sym ( adr len -- )
                   1666: \G escapes / and \ to produce sed output
1.52      jwilke   1667:   bounds 
                   1668:   DO I c@ dup
1.77      jwilke   1669:        CASE    [char] / OF drop ." \/" ENDOF
                   1670:                [char] \ OF drop ." \\" ENDOF
1.52      jwilke   1671:                dup OF emit ENDOF
                   1672:        ENDCASE
1.54      pazsan   1673:     LOOP ;
1.52      jwilke   1674: 
1.43      pazsan   1675: : (Theader ( "name" -- ghost )
1.54      pazsan   1676:     \  >in @ bl word count type 2 spaces >in !
                   1677:     \ wordheaders will always be compiled to rom
                   1678:     switchrom
                   1679:     \ build header in target
                   1680:     NoHeaderFlag @
                   1681:     IF  NoHeaderFlag off
                   1682:     ELSE
                   1683:        T align H view,
1.78      jwilke   1684:        tlast @ dup 0> IF tcell - THEN T A, H  there tlast !
1.54      pazsan   1685:        1 headers-named +!      \ Statistic
                   1686:        >in @ T name, H >in !
                   1687:     THEN
                   1688:     T cfalign here H tlastcfa !
1.84      jwilke   1689:     \ Old Symbol table sed-script
1.54      pazsan   1690: \    >in @ cr ." sym:s/CFA=" there 4 0.r ." /"  bl word count .sym ." /g" cr >in !
1.78      jwilke   1691:     ghost
1.84      jwilke   1692:     \ output symbol table to extra file
                   1693:     [ [IFDEF] fd-symbol-table ]
                   1694:       base @ hex there s>d <# 8 0 DO # LOOP #> fd-symbol-table write-file throw base !
                   1695:       s" :" fd-symbol-table write-file throw
                   1696:       dup >ghostname fd-symbol-table write-line throw
                   1697:     [ [THEN] ]
1.54      pazsan   1698:     dup Last-Header-Ghost !
                   1699:     dup >magic ^imm !     \ a pointer for immediate
                   1700:     Already @
                   1701:     IF  dup >end tdoes !
                   1702:     ELSE 0 tdoes !
                   1703:     THEN
1.89      anton    1704:     alias-mask flag!
1.54      pazsan   1705:     cross-doc-entry cross-tag-entry ;
1.1       anton    1706: 
                   1707: VARIABLE ;Resolve 1 cells allot
1.52      jwilke   1708: \ this is the resolver information from ":"
                   1709: \ resolving is done by ";"
1.1       anton    1710: 
1.11      pazsan   1711: : Theader  ( "name" -- ghost )
                   1712:   (THeader dup there resolve 0 ;Resolve ! ;
1.1       anton    1713: 
                   1714: >TARGET
                   1715: : Alias    ( cfa -- ) \ name
1.43      pazsan   1716:     >in @ skip? IF  2drop  EXIT  THEN  >in !
1.53      jwilke   1717:     dup 0< s" prims" T $has? H 0= and
1.43      pazsan   1718:     IF
1.53      jwilke   1719:        .sourcepos ." needs prim: " >in @ bl word count type >in ! cr
1.43      pazsan   1720:     THEN
1.89      anton    1721:     (THeader over resolve T A, H alias-mask flag! ;
1.42      pazsan   1722: : Alias:   ( cfa -- ) \ name
1.43      pazsan   1723:     >in @ skip? IF  2drop  EXIT  THEN  >in !
1.53      jwilke   1724:     dup 0< s" prims" T $has? H 0= and
1.43      pazsan   1725:     IF
1.53      jwilke   1726:        .sourcepos ." needs doer: " >in @ bl word count type >in ! cr
1.43      pazsan   1727:     THEN
                   1728:     ghost tuck swap resolve <do:> swap >magic ! ;
1.64      pazsan   1729: 
                   1730: Variable prim#
                   1731: : first-primitive ( n -- )  prim# ! ;
                   1732: : Primitive  ( -- ) \ name
                   1733:     prim# @ T Alias H  -1 prim# +! ;
1.1       anton    1734: >CROSS
                   1735: 
                   1736: \ Conditionals and Comments                            11may93jaw
                   1737: 
                   1738: : ;Cond
                   1739:   postpone ;
                   1740:   swap ! ;  immediate
                   1741: 
                   1742: : Cond: ( -- ) \ name {code } ;
                   1743:   atonce on
                   1744:   ghost
                   1745:   >exec
                   1746:   :NONAME ;
                   1747: 
                   1748: : restrict? ( -- )
                   1749: \ aborts on interprete state - ae
                   1750:   state @ 0= ABORT" CROSS: Restricted" ;
                   1751: 
                   1752: : Comment ( -- )
                   1753:   >in @ atonce on ghost swap >in ! ' swap >exec ! ;
                   1754: 
                   1755: Comment (       Comment \
                   1756: 
                   1757: \ compile                                              10may93jaw
                   1758: 
                   1759: : compile  ( -- ) \ name
                   1760:   restrict?
1.13      pazsan   1761:   bl word gfind dup 0= ABORT" CROSS: Can't compile "
1.1       anton    1762:   0> ( immediate? )
                   1763:   IF    >exec @ compile,
                   1764:   ELSE  postpone literal postpone gexecute  THEN ;
                   1765:                                         immediate
                   1766: 
1.52      jwilke   1767: : [G'] 
                   1768: \G ticks a ghost and returns its address
                   1769:   bl word gfind 0= ABORT" CROSS: Ghost don't exists"
                   1770:   state @
                   1771:   IF   postpone literal
                   1772:   THEN ; immediate
                   1773: 
                   1774: : ghost>cfa
1.75      jwilke   1775:   dup undefined? ABORT" CROSS: forward " >link @ ;
1.52      jwilke   1776:                
                   1777: >TARGET
                   1778: 
                   1779: : '  ( -- cfa ) 
                   1780: \ returns the target-cfa of a ghost
                   1781:   bl word gfind 0= ABORT" CROSS: Ghost don't exists"
                   1782:   ghost>cfa ;
                   1783: 
                   1784: Cond: [']  T ' H alit, ;Cond
                   1785: 
                   1786: >CROSS
                   1787: 
                   1788: : [T']
                   1789: \ returns the target-cfa of a ghost, or compiles it as literal
                   1790:   postpone [G'] state @ IF postpone ghost>cfa ELSE ghost>cfa THEN ; immediate
1.42      pazsan   1791: 
1.52      jwilke   1792: \ \ threading modell                                   13dec92py
                   1793: \ modularized                                          14jun97jaw
                   1794: 
                   1795: : fillcfa   ( usedcells -- )
1.78      jwilke   1796:   T cells H xt>body swap - 0 ?DO 0 X c, tchar +LOOP ;
1.52      jwilke   1797: 
                   1798: : (>body)   ( cfa -- pfa ) xt>body + ;         ' (>body) T IS >body H
                   1799: 
                   1800: : (doer,)   ( ghost -- ) ]comp gexecute comp[ 1 fillcfa ;   ' (doer,) IS doer,
                   1801: 
                   1802: : (docol,)  ( -- ) [G'] :docol doer, ;         ' (docol,) IS docol,
                   1803: 
                   1804: : (doprim,) ( -- )
                   1805:   there xt>body + ca>native T a, H 1 fillcfa ; ' (doprim,) IS doprim,
                   1806: 
                   1807: : (doeshandler,) ( -- ) 
                   1808:   T cfalign H compile :doesjump T 0 , H ;      ' (doeshandler,) IS doeshandler,
                   1809: 
                   1810: : (dodoes,) ( does-action-ghost -- )
                   1811:   ]comp [G'] :dodoes gexecute comp[
                   1812:   addr,
                   1813:   T here H tcell - reloff 2 fillcfa ;          ' (dodoes,) IS dodoes,
                   1814: 
                   1815: : (lit,) ( n -- )   compile lit T  ,  H ;      ' (lit,) IS lit,
                   1816: 
1.67      jwilke   1817: \ if we dont produce relocatable code alit, defaults to lit, jaw
1.84      jwilke   1818: \ this is just for convenience, so we don't have to define alit,
                   1819: \ seperately for embedded systems....
                   1820: T has? relocate H
1.67      jwilke   1821: [IF]
1.66      pazsan   1822: : (alit,) ( n -- )  compile lit T  a, H ;      ' (alit,) IS alit,
1.67      jwilke   1823: [ELSE]
                   1824: : (alit,) ( n -- )  lit, ;                     ' (alit,) IS alit,
                   1825: [THEN]
1.52      jwilke   1826: 
                   1827: : (fini,)         compile ;s ;                ' (fini,) IS fini,
1.42      pazsan   1828: 
1.43      pazsan   1829: [IFUNDEF] (code) 
                   1830: Defer (code)
                   1831: Defer (end-code)
                   1832: [THEN]
                   1833: 
1.1       anton    1834: >TARGET
1.43      pazsan   1835: : Code
1.52      jwilke   1836:   defempty?
1.48      anton    1837:   (THeader there resolve
1.53      jwilke   1838:   [ T e? prims H 0= [IF] T e? ITC H [ELSE] true [THEN] ] [IF]
1.52      jwilke   1839:   doprim, 
1.48      anton    1840:   [THEN]
                   1841:   depth (code) ;
1.43      pazsan   1842: 
                   1843: : Code:
1.52      jwilke   1844:   defempty?
1.48      anton    1845:     ghost dup there ca>native resolve  <do:> swap >magic !
1.43      pazsan   1846:     depth (code) ;
                   1847: 
                   1848: : end-code
1.52      jwilke   1849:     (end-code)
1.43      pazsan   1850:     depth ?dup IF   1- <> ABORT" CROSS: Stack changed"
                   1851:     ELSE true ABORT" CROSS: Stack empty" THEN
1.52      jwilke   1852:     ;
1.14      anton    1853: 
1.1       anton    1854: >CROSS
1.52      jwilke   1855: 
1.1       anton    1856: \ tLiteral                                             12dec92py
                   1857: 
                   1858: >TARGET
1.40      pazsan   1859: Cond: \G  T-\G ;Cond
                   1860: 
1.1       anton    1861: Cond:  Literal ( n -- )   restrict? lit, ;Cond
                   1862: Cond: ALiteral ( n -- )   restrict? alit, ;Cond
                   1863: 
                   1864: : Char ( "<char>" -- )  bl word char+ c@ ;
                   1865: Cond: [Char]   ( "<char>" -- )  restrict? Char  lit, ;Cond
                   1866: 
1.43      pazsan   1867: \ some special literals                                        27jan97jaw
                   1868: 
1.52      jwilke   1869: \ !! Known Bug: Special Literals and plug-ins work only correct
                   1870: \ on 16 and 32 Bit Targets and 32 Bit Hosts!
                   1871: 
1.43      pazsan   1872: Cond: MAXU
1.52      jwilke   1873:   restrict? 
                   1874:   tcell 1 cells u> 
                   1875:   IF   compile lit tcell 0 ?DO FF T c, H LOOP 
1.77      jwilke   1876:   ELSE ffffffff lit, THEN
1.52      jwilke   1877:   ;Cond
1.43      pazsan   1878: 
                   1879: Cond: MINI
1.52      jwilke   1880:   restrict?
                   1881:   tcell 1 cells u>
                   1882:   IF   compile lit bigendian 
                   1883:        IF      80 T c, H tcell 1 ?DO 0 T c, H LOOP 
                   1884:        ELSE    tcell 1 ?DO 0 T c, H LOOP 80 T c, H
                   1885:        THEN
1.77      jwilke   1886:   ELSE tcell 2 = IF 8000 ELSE 80000000 THEN lit, THEN
1.52      jwilke   1887:   ;Cond
1.43      pazsan   1888:  
                   1889: Cond: MAXI
1.52      jwilke   1890:  restrict?
                   1891:  tcell 1 cells u>
                   1892:  IF    compile lit bigendian 
                   1893:        IF      7F T c, H tcell 1 ?DO FF T c, H LOOP
                   1894:        ELSE    tcell 1 ?DO FF T c, H LOOP 7F T c, H
                   1895:        THEN
1.77      jwilke   1896:  ELSE  tcell 2 = IF 7fff ELSE 7fffffff THEN lit, THEN
1.43      pazsan   1897:  ;Cond
                   1898: 
1.1       anton    1899: >CROSS
                   1900: \ Target compiling loop                                12dec92py
                   1901: \ ">tib trick thrown out                               10may93jaw
                   1902: \ number? defined at the top                           11may93jaw
1.77      jwilke   1903: \ replaced >in by save-input                           
                   1904: 
                   1905: : discard 0 ?DO drop LOOP ;
1.1       anton    1906: 
                   1907: \ compiled word might leave items on stack!
1.77      jwilke   1908: : tcom ( x1 .. xn n name -- )
                   1909: \  dup count type space
                   1910:   gfind  ?dup
                   1911:   IF    >r >r discard r> r>
                   1912:        0> IF   >exec @ execute
                   1913:        ELSE    gexecute  THEN 
                   1914:        EXIT 
                   1915:   THEN
                   1916:   number? dup  
                   1917:   IF   0> IF swap lit,  THEN  lit, discard
                   1918:   ELSE 2drop restore-input throw ghost gexecute THEN  ;
1.1       anton    1919: 
                   1920: >TARGET
                   1921: \ : ; DOES>                                            13dec92py
                   1922: \ ]                                                     9may93py/jaw
                   1923: 
                   1924: : ] state on
1.54      pazsan   1925:     Compiling comp-state !
1.1       anton    1926:     BEGIN
1.77      jwilke   1927:         BEGIN save-input bl word
                   1928:               dup c@ 0= WHILE drop discard refill 0=
1.1       anton    1929:               ABORT" CROSS: End of file while target compiling"
                   1930:         REPEAT
                   1931:         tcom
                   1932:         state @
                   1933:         0=
                   1934:     UNTIL ;
                   1935: 
                   1936: \ by the way: defining a second interpreter (a compiler-)loop
                   1937: \             is not allowed if a system should be ans conform
                   1938: 
                   1939: : : ( -- colon-sys ) \ Name
1.52      jwilke   1940:   defempty?
                   1941:   constflag off \ don't let this flag work over colon defs
                   1942:                \ just to go sure nothing unwanted happens
1.43      pazsan   1943:   >in @ skip? IF  drop skip-defs  EXIT  THEN  >in !
1.1       anton    1944:   (THeader ;Resolve ! there ;Resolve cell+ !
1.52      jwilke   1945:   docol, ]comp depth T ] H ;
1.1       anton    1946: 
1.37      pazsan   1947: : :noname ( -- colon-sys )
1.52      jwilke   1948:   T cfalign H there docol, 0 ;Resolve ! depth T ] H ;
1.37      pazsan   1949: 
1.2       pazsan   1950: Cond: EXIT ( -- )  restrict?  compile ;S  ;Cond
1.6       anton    1951: 
                   1952: Cond: ?EXIT ( -- ) 1 abort" CROSS: using ?exit" ;Cond
1.2       pazsan   1953: 
1.52      jwilke   1954: >CROSS
                   1955: : LastXT ;Resolve @ 0= abort" CROSS: no definition for LastXT"
                   1956:          ;Resolve cell+ @ ;
                   1957: 
                   1958: >TARGET
                   1959: 
                   1960: Cond: recurse ( -- ) Last-Ghost @ gexecute ;Cond
                   1961: 
1.1       anton    1962: Cond: ; ( -- ) restrict?
                   1963:                depth ?dup IF   1- <> ABORT" CROSS: Stack changed"
                   1964:                           ELSE true ABORT" CROSS: Stack empty" THEN
1.52      jwilke   1965:                fini,
                   1966:                comp[
                   1967:                state off
1.1       anton    1968:                ;Resolve @
                   1969:                IF ;Resolve @ ;Resolve cell+ @ resolve THEN
1.54      pazsan   1970:                Interpreting comp-state !
1.1       anton    1971:                ;Cond
1.54      pazsan   1972: Cond: [  restrict? state off Interpreting comp-state ! ;Cond
1.1       anton    1973: 
                   1974: >CROSS
1.54      pazsan   1975: 
                   1976: Create GhostDummy ghostheader
                   1977: <res> GhostDummy >magic !
                   1978: 
1.52      jwilke   1979: : !does ( does-action -- )
                   1980: \ !! zusammenziehen und dodoes, machen!
1.54      pazsan   1981:     tlastcfa @ [G'] :dovar killref
                   1982: \    tlastcfa @ dup there >r tdp ! compile :dodoes r> tdp ! T cell+ ! H ;
1.52      jwilke   1983: \ !! geht so nicht, da dodoes, ghost will!
1.54      pazsan   1984:     GhostDummy >link ! GhostDummy 
                   1985:     tlastcfa @ >tempdp dodoes, tempdp> ;
1.1       anton    1986: 
                   1987: >TARGET
                   1988: Cond: DOES> restrict?
1.52      jwilke   1989:         compile (does>) doeshandler, 
                   1990:        \ resolve words made by builders
                   1991:        tdoes @ ?dup IF  @ T here H resolve THEN
1.1       anton    1992:         ;Cond
1.52      jwilke   1993: : DOES> switchrom doeshandler, T here H !does depth T ] H ;
1.1       anton    1994: 
                   1995: >CROSS
                   1996: \ Creation                                             01nov92py
                   1997: 
                   1998: \ Builder                                               11may93jaw
                   1999: 
1.52      jwilke   2000: : Builder    ( Create-xt do:-xt "name" -- )
                   2001: \ builds up a builder in current vocabulary
                   2002: \ create-xt is executed when word is interpreted
                   2003: \ do:-xt is executet when the created word from builder is executed
                   2004: \ for do:-xt an additional entry after the normal ghost-enrys is used
                   2005: 
1.78      jwilke   2006:   Make-Ghost           ( Create-xt do:-xt ghost )
                   2007:   rot swap             ( do:-xt Create-xt ghost )
                   2008:   >exec ! , ;
                   2009: \  rot swap >exec dup @ ['] NoExec <>
                   2010: \  IF 2drop ELSE ! THEN , ;
1.1       anton    2011: 
1.52      jwilke   2012: : gdoes,  ( ghost -- )
                   2013: \ makes the codefield for a word that is built
1.75      jwilke   2014:   >end @ dup undefined? 0=
1.52      jwilke   2015:   IF
1.42      pazsan   2016:        dup >magic @ <do:> =
1.54      pazsan   2017:        IF       doer, 
                   2018:        ELSE    dodoes,
                   2019:        THEN
                   2020:        EXIT
1.52      jwilke   2021:   THEN
                   2022: \  compile :dodoes gexecute
                   2023: \  T here H tcell - reloff 
1.54      pazsan   2024:   2 refered 
                   2025:   0 fillcfa
                   2026:   ;
1.1       anton    2027: 
1.52      jwilke   2028: : TCreate ( <name> -- )
                   2029:   executed-ghost @
                   2030:   create-forward-warn
                   2031:   IF ['] reswarn-forward IS resolve-warning THEN
1.11      pazsan   2032:   Theader >r dup gdoes,
1.77      jwilke   2033: \ stores execution semantic in the built word
1.78      jwilke   2034: \ if the word already has a semantic (concerns S", IS, .", DOES>)
                   2035: \ then keep it
                   2036:   >end @ >exec @ r> >exec dup @ ['] NoExec =
                   2037:   IF ! ELSE 2drop THEN ;
1.52      jwilke   2038: 
                   2039: : RTCreate ( <name> -- )
                   2040: \ creates a new word with code-field in ram
                   2041:   executed-ghost @
                   2042:   create-forward-warn
                   2043:   IF ['] reswarn-forward IS resolve-warning THEN
                   2044:   \ make Alias
1.89      anton    2045:   (THeader there 0 T a, H alias-mask flag! ( S executed-ghost new-ghost )
1.52      jwilke   2046:   \ store  poiter to code-field
                   2047:   switchram T cfalign H
                   2048:   there swap T ! H
                   2049:   there tlastcfa ! 
                   2050:   dup there resolve 0 ;Resolve !
                   2051:   >r dup gdoes,
1.78      jwilke   2052: \ stores execution semantic in the built word
                   2053: \ if the word already has a semantic (concerns S", IS, .", DOES>)
                   2054: \ then keep it
                   2055:   >end @ >exec @ r> >exec dup @ ['] NoExec =
                   2056:   IF ! ELSE 2drop THEN ;
1.1       anton    2057: 
                   2058: : Build:  ( -- [xt] [colon-sys] )
1.52      jwilke   2059:   :noname postpone TCreate ;
                   2060: 
                   2061: : BuildSmart:  ( -- [xt] [colon-sys] )
                   2062:   :noname
1.53      jwilke   2063:   [ T has? rom H [IF] ]
1.52      jwilke   2064:   postpone RTCreate
                   2065:   [ [ELSE] ]
                   2066:   postpone TCreate 
                   2067:   [ [THEN] ] ;
1.1       anton    2068: 
                   2069: : gdoes>  ( ghost -- addr flag )
1.52      jwilke   2070:   executed-ghost @
1.1       anton    2071:   state @ IF  gexecute true EXIT  THEN
1.52      jwilke   2072:   >link @ T >body H false ;
1.1       anton    2073: 
                   2074: \ DO: ;DO                                               11may93jaw
                   2075: \ changed to ?EXIT                                      10may93jaw
                   2076: 
                   2077: : DO:     ( -- addr [xt] [colon-sys] )
                   2078:   here ghostheader
1.11      pazsan   2079:   :noname postpone gdoes> postpone ?EXIT ;
1.1       anton    2080: 
1.42      pazsan   2081: : by:     ( -- addr [xt] [colon-sys] ) \ name
                   2082:   ghost
                   2083:   :noname postpone gdoes> postpone ?EXIT ;
                   2084: 
1.52      jwilke   2085: : ;DO ( addr [xt] [colon-sys] -- addr )
1.1       anton    2086:   postpone ;    ( S addr xt )
                   2087:   over >exec ! ; immediate
                   2088: 
                   2089: : by      ( -- addr ) \ Name
                   2090:   ghost >end @ ;
                   2091: 
                   2092: >TARGET
                   2093: \ Variables and Constants                              05dec92py
                   2094: 
1.52      jwilke   2095: Build:  ( n -- ) ;
                   2096: by: :docon ( ghost -- n ) T @ H ;DO
                   2097: Builder (Constant)
                   2098: 
                   2099: Build:  ( n -- ) T , H ;
                   2100: by (Constant)
                   2101: Builder Constant
                   2102: 
                   2103: Build:  ( n -- ) T A, H ;
                   2104: by (Constant)
                   2105: Builder AConstant
                   2106: 
                   2107: Build:  ( d -- ) T , , H ;
                   2108: DO: ( ghost -- d ) T dup cell+ @ swap @ H ;DO
                   2109: Builder 2Constant
                   2110: 
                   2111: BuildSmart: ;
1.42      pazsan   2112: by: :dovar ( ghost -- addr ) ;DO
1.1       anton    2113: Builder Create
                   2114: 
1.53      jwilke   2115: T has? rom H [IF]
1.54      pazsan   2116: Build: ( -- ) T here 0 , H switchram T align here swap ! 0 , H ( switchrom ) ;
1.52      jwilke   2117: by (Constant)
                   2118: Builder Variable
                   2119: [ELSE]
1.1       anton    2120: Build: T 0 , H ;
                   2121: by Create
                   2122: Builder Variable
1.52      jwilke   2123: [THEN]
1.1       anton    2124: 
1.53      jwilke   2125: T has? rom H [IF]
1.54      pazsan   2126: Build: ( -- ) T here 0 , H switchram T align here swap ! 0 , 0 , H ( switchrom ) ;
                   2127: by (Constant)
                   2128: Builder 2Variable
                   2129: [ELSE]
                   2130: Build: T 0 , 0 , H ;
                   2131: by Create
                   2132: Builder 2Variable
                   2133: [THEN]
                   2134: 
                   2135: T has? rom H [IF]
                   2136: Build: ( -- ) T here 0 , H switchram T align here swap ! 0 , H ( switchrom ) ;
1.52      jwilke   2137: by (Constant)
                   2138: Builder AVariable
                   2139: [ELSE]
1.1       anton    2140: Build: T 0 A, H ;
                   2141: by Create
                   2142: Builder AVariable
1.52      jwilke   2143: [THEN]
1.1       anton    2144: 
1.3       pazsan   2145: \ User variables                                       04may94py
                   2146: 
                   2147: >CROSS
1.78      jwilke   2148: 
1.3       pazsan   2149: Variable tup  0 tup !
                   2150: Variable tudp 0 tudp !
1.78      jwilke   2151: 
1.3       pazsan   2152: : u,  ( n -- udp )
                   2153:   tup @ tudp @ + T  ! H
1.19      pazsan   2154:   tudp @ dup T cell+ H tudp ! ;
1.78      jwilke   2155: 
1.3       pazsan   2156: : au, ( n -- udp )
                   2157:   tup @ tudp @ + T A! H
1.19      pazsan   2158:   tudp @ dup T cell+ H tudp ! ;
1.78      jwilke   2159: 
1.3       pazsan   2160: >TARGET
                   2161: 
1.78      jwilke   2162: Build: 0 u, X , ;
                   2163: by: :douser ( ghost -- up-addr )  X @ tup @ + ;DO
1.1       anton    2164: Builder User
                   2165: 
1.78      jwilke   2166: Build: 0 u, X , 0 u, drop ;
1.3       pazsan   2167: by User
1.1       anton    2168: Builder 2User
                   2169: 
1.78      jwilke   2170: Build: 0 au, X , ;
1.3       pazsan   2171: by User
1.1       anton    2172: Builder AUser
                   2173: 
1.52      jwilke   2174: BuildSmart: T , H ;
1.44      pazsan   2175: by (Constant)
1.1       anton    2176: Builder Value
                   2177: 
1.52      jwilke   2178: BuildSmart: T A, H ;
1.44      pazsan   2179: by (Constant)
1.32      pazsan   2180: Builder AValue
                   2181: 
1.52      jwilke   2182: BuildSmart:  ( -- ) [T'] noop T A, H ;
1.42      pazsan   2183: by: :dodefer ( ghost -- ) ABORT" CROSS: Don't execute" ;DO
1.1       anton    2184: Builder Defer
1.37      pazsan   2185: 
1.78      jwilke   2186: Build: ( inter comp -- ) swap T immediate A, A, H ;
1.37      pazsan   2187: DO: ( ghost -- ) ABORT" CROSS: Don't execute" ;DO
1.38      anton    2188: Builder interpret/compile:
1.24      pazsan   2189: 
                   2190: \ Sturctures                                           23feb95py
                   2191: 
                   2192: >CROSS
                   2193: : nalign ( addr1 n -- addr2 )
                   2194: \ addr2 is the aligned version of addr1 wrt the alignment size n
                   2195:  1- tuck +  swap invert and ;
                   2196: >TARGET
                   2197: 
1.44      pazsan   2198: Build: ;
                   2199: by: :dofield T @ H + ;DO
                   2200: Builder (Field)
                   2201: 
1.51      anton    2202: Build: ( align1 offset1 align size "name" --  align2 offset2 )
                   2203:     rot dup T , H ( align1 align size offset1 )
                   2204:     + >r nalign r> ;
1.44      pazsan   2205: by (Field)
1.24      pazsan   2206: Builder Field
                   2207: 
1.51      anton    2208: : struct  T 1 chars 0 H ;
1.24      pazsan   2209: : end-struct  T 2Constant H ;
                   2210: 
1.52      jwilke   2211: : cell% ( n -- size align )
1.51      anton    2212:     T 1 cells H dup ;
1.88      pazsan   2213: 
                   2214: Build: ( m v -- m' v )  dup T , H cell+ ;
                   2215: DO:  abort" Not in cross mode" ;DO
                   2216: Builder input-method
                   2217: 
                   2218: Build: ( m v size -- m v' )  over T , H + ;
                   2219: DO:  abort" Not in cross mode" ;DO
                   2220: Builder input-var
1.24      pazsan   2221: 
1.52      jwilke   2222: \ structural conditionals                              17dec92py
                   2223: 
                   2224: >CROSS
                   2225: : ?struc      ( flag -- )       ABORT" CROSS: unstructured " ;
                   2226: : sys?        ( sys -- sys )    dup 0= ?struc ;
                   2227: : >mark       ( -- sys )        T here  ( dup ." M" hex. ) 0 , H ;
                   2228: 
1.78      jwilke   2229: : branchoffset ( src dest -- )  - tchar / ; \ ?? jaw
1.52      jwilke   2230: 
1.78      jwilke   2231: : >resolve    ( sys -- )        
                   2232:        X here ( dup ." >" hex. ) over branchoffset swap X ! ;
1.52      jwilke   2233: 
1.78      jwilke   2234: : <resolve    ( sys -- )
                   2235:        X here ( dup ." <" hex. ) branchoffset X , ;
1.52      jwilke   2236: 
1.78      jwilke   2237: :noname compile branch X here branchoffset X , ;
1.54      pazsan   2238:   IS branch, ( target-addr -- )
1.78      jwilke   2239: :noname compile ?branch X here branchoffset X , ;
1.54      pazsan   2240:   IS ?branch, ( target-addr -- )
                   2241: :noname compile branch T here 0 , H ;
                   2242:   IS branchmark, ( -- branchtoken )
                   2243: :noname compile ?branch T here 0 , H ;
                   2244:   IS ?branchmark, ( -- branchtoken )
                   2245: :noname T here 0 , H ;
                   2246:   IS ?domark, ( -- branchtoken )
1.78      jwilke   2247: :noname dup X @ ?struc X here over branchoffset swap X ! ;
1.54      pazsan   2248:   IS branchtoresolve, ( branchtoken -- )
1.78      jwilke   2249: :noname branchto, X here ;
1.54      pazsan   2250:   IS branchtomark, ( -- target-addr )
1.52      jwilke   2251: 
                   2252: >TARGET
                   2253: 
                   2254: \ Structural Conditionals                              12dec92py
                   2255: 
                   2256: Cond: BUT       restrict? sys? swap ;Cond
                   2257: Cond: YET       restrict? sys? dup ;Cond
                   2258: 
                   2259: >CROSS
                   2260: 
1.78      jwilke   2261: Variable tleavings 0 tleavings !
1.52      jwilke   2262: 
1.54      pazsan   2263: : (done) ( addr -- )
                   2264:     tleavings @
                   2265:     BEGIN  dup
                   2266:     WHILE
                   2267:        >r dup r@ cell+ @ \ address of branch
                   2268:        u> 0=      \ lower than DO?     
                   2269:     WHILE
                   2270:        r@ 2 cells + @ \ branch token
                   2271:        branchtoresolve,
                   2272:        r@ @ r> free throw
                   2273:     REPEAT  r>  THEN
                   2274:     tleavings ! drop ;
                   2275: 
1.53      jwilke   2276: >TARGET
                   2277: 
1.54      pazsan   2278: Cond: DONE   ( addr -- )  restrict? (done) ;Cond
1.53      jwilke   2279: 
                   2280: >CROSS
1.54      pazsan   2281: : (leave) ( branchtoken -- )
1.53      jwilke   2282:     3 cells allocate throw >r
                   2283:     T here H r@ cell+ !
                   2284:     r@ 2 cells + !
                   2285:     tleavings @ r@ !
                   2286:     r> tleavings ! ;
                   2287: >TARGET
                   2288: 
1.54      pazsan   2289: Cond: LEAVE     restrict? branchmark, (leave) ;Cond
                   2290: Cond: ?LEAVE    restrict? compile 0=  ?branchmark, (leave)  ;Cond
1.53      jwilke   2291: 
1.54      pazsan   2292: >CROSS
                   2293: \ !!JW ToDo : Move to general tools section
                   2294: 
                   2295: : to1 ( x1 x2 xn n -- addr )
                   2296: \G packs n stack elements in a allocated memory region
                   2297:    dup dup 1+ cells allocate throw dup >r swap 1+
                   2298:    0 DO tuck ! cell+ LOOP
                   2299:    drop r> ;
                   2300: : 1to ( addr -- x1 x2 xn )
                   2301: \G unpacks the elements saved by to1
                   2302:     dup @ swap over cells + swap
                   2303:     0 DO  dup @ swap 1 cells -  LOOP
                   2304:     free throw ;
                   2305: 
                   2306: : loop]     branchto, dup <resolve tcell - (done) ;
                   2307: 
                   2308: : skiploop] ?dup IF branchto, branchtoresolve, THEN ;
                   2309: 
                   2310: >TARGET
                   2311: 
1.52      jwilke   2312: \ Structural Conditionals                              12dec92py
                   2313: 
1.53      jwilke   2314: >TARGET
1.52      jwilke   2315: Cond: AHEAD     restrict? branchmark, ;Cond
                   2316: Cond: IF        restrict? ?branchmark, ;Cond
                   2317: Cond: THEN      restrict? sys? branchto, branchtoresolve, ;Cond
                   2318: Cond: ELSE      restrict? sys? compile AHEAD swap compile THEN ;Cond
                   2319: 
                   2320: Cond: BEGIN     restrict? branchtomark, ;Cond
                   2321: Cond: WHILE     restrict? sys? compile IF swap ;Cond
                   2322: Cond: AGAIN     restrict? sys? branch, ;Cond
                   2323: Cond: UNTIL     restrict? sys? ?branch, ;Cond
                   2324: Cond: REPEAT    restrict? over 0= ?struc compile AGAIN compile THEN ;Cond
                   2325: 
                   2326: Cond: CASE      restrict? 0 ;Cond
                   2327: Cond: OF        restrict? 1+ >r compile over compile =
                   2328:                 compile IF compile drop r> ;Cond
1.45      pazsan   2329: Cond: ENDOF     restrict? >r compile ELSE r> ;Cond
                   2330: Cond: ENDCASE   restrict? compile drop 0 ?DO  compile THEN  LOOP ;Cond
1.1       anton    2331: 
                   2332: \ Structural Conditionals                              12dec92py
                   2333: 
1.67      jwilke   2334: :noname \ ?? i think 0 is too much! jaw
1.54      pazsan   2335:     0 compile (do)
                   2336:     branchtomark,  2 to1 ;
                   2337:   IS do, ( -- target-addr )
                   2338: 
                   2339: \ :noname
                   2340: \     compile 2dup compile = compile IF
                   2341: \     compile 2drop compile ELSE
                   2342: \     compile (do) branchtomark, 2 to1 ;
                   2343: \   IS ?do,
                   2344:     
                   2345: :noname
                   2346:     0 compile (?do)  ?domark, (leave)
                   2347:     branchtomark,  2 to1 ;
                   2348:   IS ?do, ( -- target-addr )
                   2349: :noname compile (for) branchtomark, ;
                   2350:   IS for, ( -- target-addr )
                   2351: :noname 1to compile (loop)  loop] compile unloop skiploop] ;
                   2352:   IS loop, ( target-addr -- )
                   2353: :noname 1to compile (+loop)  loop] compile unloop skiploop] ;
                   2354:   IS +loop, ( target-addr -- )
                   2355: :noname compile (next)  loop] compile unloop ;
                   2356:   IS next, ( target-addr -- )
                   2357: 
                   2358: Cond: DO       restrict? do, ;Cond
                   2359: Cond: ?DO      restrict? ?do, ;Cond
                   2360: Cond: FOR      restrict? for, ;Cond
                   2361: 
                   2362: Cond: LOOP     restrict? sys? loop, ;Cond
                   2363: Cond: +LOOP    restrict? sys? +loop, ;Cond
                   2364: Cond: NEXT     restrict? sys? next, ;Cond
1.52      jwilke   2365: 
1.1       anton    2366: \ String words                                         23feb93py
                   2367: 
1.52      jwilke   2368: : ,"            [char] " parse T string, align H ;
1.1       anton    2369: 
                   2370: Cond: ."        restrict? compile (.")     T ," H ;Cond
                   2371: Cond: S"        restrict? compile (S")     T ," H ;Cond
                   2372: Cond: ABORT"    restrict? compile (ABORT") T ," H ;Cond
                   2373: 
                   2374: Cond: IS        T ' >body H compile ALiteral compile ! ;Cond
1.66      pazsan   2375: : IS            T >address ' >body ! H ;
1.9       pazsan   2376: Cond: TO        T ' >body H compile ALiteral compile ! ;Cond
                   2377: : TO            T ' >body ! H ;
1.1       anton    2378: 
1.52      jwilke   2379: Cond: defers   T ' >body @ compile, H ;Cond
                   2380: : on           T -1 swap ! H ; 
                   2381: : off          T 0 swap ! H ;
                   2382: 
1.1       anton    2383: \ LINKED ERR" ENV" 2ENV"                                18may93jaw
                   2384: 
                   2385: \ linked list primitive
1.79      jwilke   2386: : linked        X here over X @ X A, swap X ! ;
1.52      jwilke   2387: : chained      T linked A, H ;
1.1       anton    2388: 
                   2389: : err"   s" ErrLink linked" evaluate T , H
1.52      jwilke   2390:          [char] " parse T string, align H ;
1.1       anton    2391: 
                   2392: : env"  [char] " parse s" EnvLink linked" evaluate
1.52      jwilke   2393:         T string, align , H ;
1.1       anton    2394: 
                   2395: : 2env" [char] " parse s" EnvLink linked" evaluate
1.52      jwilke   2396:         here >r T string, align , , H
1.1       anton    2397:         r> dup T c@ H 80 and swap T c! H ;
                   2398: 
                   2399: \ compile must be last                                 22feb93py
                   2400: 
                   2401: Cond: compile ( -- ) 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
1.1       anton    2407: 
                   2408: Cond: postpone ( -- ) restrict? \ name
1.13      pazsan   2409:       bl word gfind dup 0= ABORT" CROSS: Can't compile"
1.1       anton    2410:       0> IF    gexecute
                   2411:          ELSE  dup >magic @ <imm> =
                   2412:                IF   gexecute
1.54      pazsan   2413:               ELSE compile (compile) addr, THEN THEN ;Cond
                   2414:           
1.77      jwilke   2415: \ save-cross                                           17mar93py
                   2416: 
                   2417: hex
                   2418: 
                   2419: >CROSS
                   2420: Create magic  s" Gforth2x" here over allot swap move
                   2421: 
                   2422: bigendian 1+ \ strangely, in magic big=0, little=1
                   2423: tcell 1 = 0 and or
                   2424: tcell 2 = 2 and or
                   2425: tcell 4 = 4 and or
                   2426: tcell 8 = 6 and or
                   2427: tchar 1 = 00 and or
                   2428: tchar 2 = 28 and or
                   2429: tchar 4 = 50 and or
                   2430: tchar 8 = 78 and or
                   2431: magic 7 + c!
                   2432: 
                   2433: : save-cross ( "image-name" "binary-name" -- )
                   2434:   bl parse ." Saving to " 2dup type cr
                   2435:   w/o bin create-file throw >r
                   2436:   TNIL IF
1.80      anton    2437:       s" #! "           r@ write-file throw
                   2438:       bl parse          r@ write-file throw
                   2439:       s"  --image-file" r@ write-file throw
1.77      jwilke   2440:       #lf       r@ emit-file throw
                   2441:       r@ dup file-position throw drop 8 mod 8 swap ( file-id limit index )
                   2442:       ?do
                   2443:          bl over emit-file throw
                   2444:       loop
                   2445:       drop
                   2446:       magic 8       r@ write-file throw \ write magic
                   2447:   ELSE
                   2448:       bl parse 2drop
                   2449:   THEN
                   2450:   image @ there 
                   2451:   r@ write-file throw \ write image
                   2452:   TNIL IF
                   2453:       bit$  @ there 1- tcell>bit rshift 1+
                   2454:                 r@ write-file throw \ write tags
                   2455:   THEN
                   2456:   r> close-file throw ;
                   2457: 
                   2458: : save-region ( addr len -- )
                   2459:   bl parse w/o bin create-file throw >r
                   2460:   swap >image swap r@ write-file throw
                   2461:   r> close-file throw ;
                   2462: 
1.54      pazsan   2463: \ \ minimal definitions
                   2464:           
1.77      jwilke   2465: >MINIMAL also minimal
                   2466: 
1.1       anton    2467: \ Usefull words                                        13feb93py
                   2468: 
                   2469: : KB  400 * ;
                   2470: 
1.54      pazsan   2471: \ \ [IF] [ELSE] [THEN] ...                             14sep97jaw
                   2472: 
                   2473: \ it is useful to define our own structures and not to rely
                   2474: \ on the words in the compiler
                   2475: \ The words in the compiler might be defined with vocabularies
                   2476: \ this doesn't work with our self-made compile-loop
                   2477: 
                   2478: Create parsed 20 chars allot   \ store word we parsed
                   2479: 
                   2480: : upcase
                   2481:     parsed count bounds
                   2482:     ?DO I c@ toupper I c! LOOP ;
                   2483: 
                   2484: : [ELSE]
                   2485:     1 BEGIN
                   2486:        BEGIN bl word count dup WHILE
1.77      jwilke   2487:            comment? 20 umin parsed place upcase parsed count
1.54      pazsan   2488:            2dup s" [IF]" compare 0= >r 
                   2489:            2dup s" [IFUNDEF]" compare 0= >r
                   2490:            2dup s" [IFDEF]" compare 0= r> or r> or
                   2491:            IF   2drop 1+
                   2492:            ELSE 2dup s" [ELSE]" compare 0=
                   2493:                IF   2drop 1- dup
                   2494:                    IF 1+
                   2495:                    THEN
                   2496:                ELSE
                   2497:                    2dup s" [ENDIF]" compare 0= >r
                   2498:                    s" [THEN]" compare 0= r> or
                   2499:                    IF 1- THEN
                   2500:                THEN
                   2501:            THEN
                   2502:            ?dup 0= ?EXIT
                   2503:        REPEAT
                   2504:        2drop refill 0=
                   2505:     UNTIL drop ; immediate
                   2506:   
                   2507: : [THEN] ( -- ) ; immediate
                   2508: 
                   2509: : [ENDIF] ( -- ) ; immediate
                   2510: 
                   2511: : [IF] ( flag -- )
                   2512:     0= IF postpone [ELSE] THEN ; immediate 
                   2513: 
                   2514: Cond: [IF]      postpone [IF] ;Cond
                   2515: Cond: [THEN]    postpone [THEN] ;Cond
                   2516: Cond: [ELSE]    postpone [ELSE] ;Cond
                   2517: 
1.1       anton    2518: \ define new [IFDEF] and [IFUNDEF]                      20may93jaw
                   2519: 
1.77      jwilke   2520: : defined? tdefined? ;
1.44      pazsan   2521: : needed? needed? ;
                   2522: : doer? doer? ;
1.1       anton    2523: 
1.52      jwilke   2524: \ we want to use IFDEF on compiler directives (e.g. E?) in the source, too
                   2525: 
                   2526: : directive? 
1.77      jwilke   2527:   bl word count [ ' target >wordlist ] literal search-wordlist 
1.52      jwilke   2528:   dup IF nip THEN ;
                   2529: 
                   2530: : [IFDEF]  >in @ directive? swap >in !
1.77      jwilke   2531:           0= IF tdefined? ELSE name 2drop true THEN
1.52      jwilke   2532:           postpone [IF] ;
                   2533: 
1.77      jwilke   2534: : [IFUNDEF] tdefined? 0= postpone [IF] ;
1.1       anton    2535: 
1.54      pazsan   2536: Cond: [IFDEF]   postpone [IFDEF] ;Cond
                   2537: 
                   2538: Cond: [IFUNDEF] postpone [IFUNDEF] ;Cond
                   2539: 
1.1       anton    2540: \ C: \- \+ Conditional Compiling                         09jun93jaw
                   2541: 
1.77      jwilke   2542: : C: >in @ tdefined? 0=
                   2543:      IF    >in ! X :
1.1       anton    2544:      ELSE drop
                   2545:         BEGIN bl word dup c@
                   2546:               IF   count comment? s" ;" compare 0= ?EXIT
                   2547:               ELSE refill 0= ABORT" CROSS: Out of Input while C:"
                   2548:               THEN
                   2549:         AGAIN
                   2550:      THEN ;
                   2551: 
1.74      jwilke   2552: : d? d? ;
                   2553: 
                   2554: \G doesn't skip line when debug switch is on
                   2555: : \D D? 0= IF postpone \ THEN ;
1.52      jwilke   2556: 
1.48      anton    2557: \G interprets the line if word is not defined
1.77      jwilke   2558: : \- tdefined? IF postpone \ THEN ;
1.48      anton    2559: 
                   2560: \G interprets the line if word is defined
1.77      jwilke   2561: : \+ tdefined? 0= IF postpone \ THEN ;
1.1       anton    2562: 
1.48      anton    2563: Cond: \- \- ;Cond
                   2564: Cond: \+ \+ ;Cond
1.52      jwilke   2565: Cond: \D \D ;Cond
1.48      anton    2566: 
                   2567: : ?? bl word find IF execute ELSE drop 0 THEN ;
                   2568: 
                   2569: : needed:
                   2570: \G defines ghost for words that we want to be compiled
                   2571:   BEGIN >in @ bl word c@ WHILE >in ! ghost drop REPEAT drop ;
                   2572: 
1.1       anton    2573: \ words that should be in minimal
1.52      jwilke   2574: 
                   2575: create s-buffer 50 chars allot
                   2576: 
1.77      jwilke   2577: bigendian Constant bigendian
1.1       anton    2578: 
1.52      jwilke   2579: : here there ;
1.67      jwilke   2580: : equ constant ;
                   2581: : mark there constant ;
1.54      pazsan   2582: 
                   2583: \ compiler directives
1.52      jwilke   2584: : >ram >ram ;
                   2585: : >rom >rom ;
                   2586: : >auto >auto ;
                   2587: : >tempdp >tempdp ;
                   2588: : tempdp> tempdp> ;
                   2589: : const constflag on ;
                   2590: : warnings name 3 = 0= twarnings ! drop ;
1.60      anton    2591: : | ;
                   2592: \ : | NoHeaderFlag on ; \ This is broken (damages the last word)
1.52      jwilke   2593: 
1.48      anton    2594: : save-cross save-cross ;
1.52      jwilke   2595: : save-region save-region ;
                   2596: : tdump swap >image swap dump ;
                   2597: 
1.48      anton    2598: also forth 
1.52      jwilke   2599: [IFDEF] Label           : Label defempty? Label ; [THEN] 
                   2600: [IFDEF] start-macros    : start-macros defempty? start-macros ; [THEN]
1.77      jwilke   2601: \ [IFDEF] builttag     : builttag builttag ;   [THEN]
1.48      anton    2602: previous
                   2603: 
1.52      jwilke   2604: : s" [char] " parse s-buffer place s-buffer count ; \ for environment?
1.43      pazsan   2605: : + + ;
1.52      jwilke   2606: : 1+ 1 + ;
                   2607: : 2+ 2 + ;
1.43      pazsan   2608: : 1- 1- ;
                   2609: : - - ;
1.52      jwilke   2610: : and and ;
                   2611: : or or ;
1.43      pazsan   2612: : 2* 2* ;
                   2613: : * * ;
                   2614: : / / ;
                   2615: : dup dup ;
                   2616: : over over ;
                   2617: : swap swap ;
                   2618: : rot rot ;
                   2619: : drop drop ;
                   2620: : =   = ;
                   2621: : 0=   0= ;
                   2622: : lshift lshift ;
                   2623: : 2/ 2/ ;
1.19      pazsan   2624: : . . ;
1.1       anton    2625: 
1.79      jwilke   2626: : all-words    ['] forced?    IS skip? ;
1.43      pazsan   2627: : needed-words ['] needed?  IS skip? ;
1.75      jwilke   2628: : undef-words  ['] defined2? IS skip? ;
                   2629: : skipdef skipdef ;
1.1       anton    2630: 
1.40      pazsan   2631: : \  postpone \ ;  immediate
1.47      pazsan   2632: : \G T-\G ; immediate
1.40      pazsan   2633: : (  postpone ( ;  immediate
1.1       anton    2634: : include bl word count included ;
1.52      jwilke   2635: : require require ;
1.1       anton    2636: : .( [char] ) parse type ;
1.52      jwilke   2637: : ." [char] " parse type ;
1.1       anton    2638: : cr cr ;
                   2639: 
1.77      jwilke   2640: : times 0 ?DO dup X c, LOOP drop ; \ used for space table creation
                   2641: 
                   2642: \ only forth also cross also minimal definitions order
1.1       anton    2643: 
                   2644: \ cross-compiler words
                   2645: 
                   2646: : decimal       decimal ;
                   2647: : hex           hex ;
                   2648: 
1.77      jwilke   2649: \ : tudp          X tudp ;
                   2650: \ : tup           X tup ;
                   2651: 
                   2652: : doc-off       false to-doc ! ;
                   2653: : doc-on        true  to-doc ! ;
1.39      pazsan   2654: 
1.52      jwilke   2655: [IFDEF] dbg : dbg dbg ; [THEN]
1.39      pazsan   2656: 
1.1       anton    2657: \ for debugging...
                   2658: : order         order ;
1.52      jwilke   2659: : hwords         words ;
                   2660: : words        also ghosts words previous ;
1.1       anton    2661: : .s            .s ;
                   2662: : bye           bye ;
                   2663: 
                   2664: \ turnkey direction
                   2665: : H forth ; immediate
                   2666: : T minimal ; immediate
                   2667: : G ghosts ; immediate
                   2668: 
1.77      jwilke   2669: : turnkey 
1.78      jwilke   2670:    \GFORTH 0 set-order also ghosts
                   2671:    \ANSI [ ' ghosts >wordlist ] Literal 1 set-order
                   2672:    also target definitions
1.77      jwilke   2673:    also Minimal also ;
1.1       anton    2674: 
                   2675: \ these ones are pefered:
                   2676: 
                   2677: : lock   turnkey ;
1.74      jwilke   2678: : unlock previous forth also cross ;
1.52      jwilke   2679: 
1.77      jwilke   2680: \ also minimal
1.52      jwilke   2681: : [[ also unlock ;
1.78      jwilke   2682: : ]] previous previous also also ;
1.1       anton    2683: 
                   2684: unlock definitions also minimal
                   2685: : lock   lock ;
                   2686: lock
1.77      jwilke   2687: 
                   2688: \ load cross compiler extension defined in mach file
                   2689: 
                   2690: UNLOCK >CROSS
                   2691: 
                   2692: [IFDEF] extend-cross extend-cross [THEN]
                   2693: 
                   2694: LOCK

FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>