Annotation of gforth/cross.fs, revision 1.97

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: 
1.93      pazsan    659: \  Compiler States
                    660: 
                    661: Variable comp-state
                    662: 0 Constant interpreting
                    663: 1 Constant compiling
                    664: 2 Constant resolving
                    665: 3 Constant assembling
                    666: 
                    667: Defer lit, ( n -- )
                    668: Defer alit, ( n -- )
                    669: 
                    670: Defer branch, ( target-addr -- )       \ compiles a branch
                    671: Defer ?branch, ( target-addr -- )      \ compiles a ?branch
                    672: Defer branchmark, ( -- branch-addr )   \ reserves room for a branch
                    673: Defer ?branchmark, ( -- branch-addr )  \ reserves room for a ?branch
                    674: Defer ?domark, ( -- branch-addr )      \ reserves room for a ?do branch
                    675: Defer branchto, ( -- )                 \ actual program position is target of a branch (do e.g. alignment)
                    676: Defer branchtoresolve, ( branch-addr -- ) \ resolves a forward reference from branchmark
                    677: Defer branchfrom, ( -- )               \ ?!
                    678: Defer branchtomark, ( -- target-addr ) \ marks a branch destination
                    679: 
                    680: Defer colon, ( tcfa -- )               \ compiles call to tcfa at current position
1.94      pazsan    681: Defer prim, ( tcfa -- )                 \ compiles a primitive invocation
                    682:                                        \ at current position
1.93      pazsan    683: Defer colonmark, ( -- addr )           \ marks a colon call
                    684: Defer colon-resolve ( tcfa addr -- )
                    685: 
                    686: Defer addr-resolve ( target-addr addr -- )
                    687: Defer doer-resolve ( ghost res-pnt target-addr addr -- ghost res-pnt )
1.52      jwilke    688: 
1.93      pazsan    689: Defer do,      ( -- do-token )
                    690: Defer ?do,     ( -- ?do-token )
                    691: Defer for,     ( -- for-token )
                    692: Defer loop,    ( do-token / ?do-token -- )
                    693: Defer +loop,   ( do-token / ?do-token -- )
                    694: Defer next,    ( for-token )
1.52      jwilke    695: 
1.93      pazsan    696: [IFUNDEF] ca>native
                    697: defer ca>native        
                    698: [THEN]
1.52      jwilke    699: 
1.93      pazsan    700: \ ghost structure
1.52      jwilke    701: 
                    702: : >magic ;             \ type of ghost
                    703: : >link cell+ ;                \ pointer where ghost is in target, or if unresolved
                    704:                        \ points to the where we have to resolve (linked-list)
                    705: : >exec cell+ cell+ ;  \ execution symantics (while target compiling) of ghost
1.93      pazsan    706: : >comp 3 cells + ;     \ compilation semantics
                    707: : >end 4 cells + ;     \ room for additional tags
1.52      jwilke    708:                        \ for builder (create, variable...) words the
                    709:                        \ execution symantics of words built are placed here
                    710: 
1.93      pazsan    711: \ resolve structure
                    712: 
                    713: : >next ;              \ link to next field
                    714: : >tag cell+ ;         \ indecates type of reference: 0: call, 1: address, 2: doer
                    715: : >taddr cell+ cell+ ; 
                    716: : >ghost 3 cells + ;
                    717: : >file 4 cells + ;
                    718: : >line 5 cells + ;
                    719: 
                    720: \ refer variables
                    721: 
1.52      jwilke    722: Variable executed-ghost \ last executed ghost, needed in tcreate and gdoes>
                    723: Variable last-ghost    \ last ghost that is created
                    724: Variable last-header-ghost \ last ghost definitions with header
                    725: 
1.93      pazsan    726: : (refered) ( ghost addr tag -- )
                    727: \G creates a reference to ghost at address taddr
                    728:     rot >r here r@ >link @ , r> >link ! 
                    729:     ( taddr tag ) ,
                    730:     ( taddr ) , 
                    731:     last-header-ghost @ , 
                    732:     loadfile , 
                    733:     sourceline# , 
                    734:   ;
                    735: 
                    736: \ iForth makes only immediate directly after create
                    737: \ make atonce trick! ?
                    738: 
                    739: Variable atonce atonce off
                    740: 
                    741: : NoExec true ABORT" CROSS: Don't execute ghost, or immediate target word" ;
                    742: 
                    743: : is-forward   ( ghost -- )
                    744:   colonmark, 0 (refered) ; \ compile space for call
                    745: 
                    746: : GhostHeader <fwd> , 0 , ['] NoExec , ['] is-forward , ;
                    747: 
1.52      jwilke    748: : Make-Ghost ( "name" -- ghost )
                    749:   >in @ GhostName swap >in !
                    750:   <T Create atonce @ IF immediate atonce off THEN
                    751:   here tuck swap ! ghostheader T>
                    752:   dup last-ghost !
                    753:   DOES> dup executed-ghost ! >exec @ execute ;
                    754: 
                    755: \ ghost words                                          14oct92py
                    756: \                                          changed:    10may93py/jaw
                    757: 
                    758: : gfind   ( string -- ghost true/1 / string false )
                    759: \ searches for string in word-list ghosts
1.77      jwilke    760:   dup count [ ' ghosts >wordlist ] Literal search-wordlist
1.52      jwilke    761:   dup IF >r >body nip r>  THEN ;
                    762: 
                    763: : gdiscover ( xt -- ghost true | xt false )
                    764:   GhostNames
                    765:   BEGIN @ dup
                    766:   WHILE 2dup
                    767:         cell+ @ dup >magic @ <fwd> <>
                    768:         >r >link @ = r> and
                    769:         IF cell+ @ nip true EXIT THEN
                    770:   REPEAT
                    771:   drop false ;
                    772: 
                    773: VARIABLE Already
                    774: 
                    775: : ghost   ( "name" -- ghost )
                    776:   Already off
1.76      jwilke    777:   >in @  bl word gfind   IF  atonce off Already on nip EXIT  THEN
1.52      jwilke    778:   drop  >in !  Make-Ghost ;
                    779: 
                    780: : >ghostname ( ghost -- adr len )
                    781:   GhostNames
                    782:   BEGIN @ dup
                    783:   WHILE 2dup cell+ @ =
                    784:   UNTIL nip 2 cells + count
1.54      pazsan    785:   ELSE  2drop 
                    786:        \ true abort" CROSS: Ghostnames inconsistent"
                    787:        s" ?!?!?!"
1.52      jwilke    788:   THEN ;
                    789: 
1.78      jwilke    790: : .ghost ( ghost -- ) >ghostname type ;
                    791: 
1.77      jwilke    792: \ ' >ghostname ALIAS @name
1.52      jwilke    793: 
                    794: : forward? ( ghost -- flag )
                    795:   >magic @ <fwd> = ;
                    796: 
1.75      jwilke    797: : undefined? ( ghost -- flag )
                    798:   >magic @ dup <fwd> = swap <skip> = or ;
                    799: 
1.52      jwilke    800: \ Predefined ghosts                                    12dec92py
                    801: 
                    802: ghost 0=                                        drop
                    803: ghost branch    ghost ?branch                   2drop
                    804: ghost (do)      ghost (?do)                     2drop
                    805: ghost (for)                                     drop
                    806: ghost (loop)    ghost (+loop)                   2drop
                    807: ghost (next)                                    drop
                    808: ghost unloop    ghost ;S                        2drop
                    809: ghost lit       ghost (compile) ghost !         2drop drop
                    810: ghost (does>)   ghost noop                      2drop
1.97    ! pazsan    811: ghost (.")      ghost (S")      ghost (ABORT")  2drop drop
1.52      jwilke    812: ghost '                                         drop
                    813: ghost :docol    ghost :doesjump ghost :dodoes   2drop drop
1.93      pazsan    814: ghost :dovar   ghost :dodefer  ghost :dofield  2drop drop
1.52      jwilke    815: ghost over      ghost =         ghost drop      2drop drop
1.93      pazsan    816: ghost call      ghost useraddr  ghost execute   2drop drop
                    817: ghost +         ghost -         ghost @         2drop drop
1.54      pazsan    818: ghost 2drop drop
                    819: ghost 2dup drop
1.52      jwilke    820: 
                    821: \ \ Parameter for target systems                         06oct92py
                    822: 
                    823: \ we define it ans like...
                    824: wordlist Constant target-environment
                    825: 
                    826: VARIABLE env-current \ save information of current dictionary to restore with environ>
                    827: 
                    828: : >ENVIRON get-current env-current ! target-environment set-current ;
                    829: : ENVIRON> env-current @ set-current ; 
1.43      pazsan    830: 
1.48      anton     831: >TARGET
1.43      pazsan    832: 
1.67      jwilke    833: : environment? ( adr len -- [ x ] true | false )
1.52      jwilke    834:   target-environment search-wordlist 
                    835:   IF execute true ELSE false THEN ;
                    836: 
1.67      jwilke    837: : e? bl word count T environment? H 0= ABORT" environment variable not defined!" ;
1.52      jwilke    838: 
1.67      jwilke    839: : has?         bl word count T environment? H 
1.53      jwilke    840:        IF      \ environment variable is present, return its value
                    841:        ELSE    \ environment variable is not present, return false
1.75      jwilke    842:                false \ debug true ABORT" arg" 
1.53      jwilke    843:        THEN ;
1.52      jwilke    844: 
                    845: : $has? T environment? H IF ELSE false THEN ;
1.48      anton     846: 
1.54      pazsan    847: >ENVIRON get-order get-current swap 1+ set-order
                    848: true SetValue compiler
1.83      pazsan    849: true SetValue cross
1.54      pazsan    850: true SetValue standard-threading
                    851: >TARGET previous
1.52      jwilke    852: 
1.77      jwilke    853: 0
                    854: [IFDEF] mach-file mach-file count 1 [THEN]
                    855: [IFDEF] machine-file machine-file 1 [THEN]
                    856: [IF]   included hex drop
                    857: [ELSE]  cr ." No machine description!" ABORT 
                    858: [THEN]
1.43      pazsan    859: 
1.53      jwilke    860: >ENVIRON
                    861: 
1.54      pazsan    862: T has? ec H
                    863: [IF]
                    864: false DefaultValue relocate
                    865: false DefaultValue file
                    866: false DefaultValue OS
                    867: false DefaultValue prims
                    868: false DefaultValue floating
                    869: false DefaultValue glocals
                    870: false DefaultValue dcomps
                    871: false DefaultValue hash
                    872: false DefaultValue xconds
                    873: false DefaultValue header
1.92      pazsan    874: false DefaultValue backtrace
1.88      pazsan    875: false DefaultValue new-input
1.54      pazsan    876: [THEN]
                    877: 
                    878: true DefaultValue interpreter
                    879: true DefaultValue ITC
                    880: false DefaultValue rom
1.73      jwilke    881: true DefaultValue standardthreading
1.53      jwilke    882: 
1.52      jwilke    883: >TARGET
1.53      jwilke    884: s" relocate" T environment? H 
                    885: [IF]   SetValue NIL
                    886: [ELSE] >ENVIRON T NIL H SetValue relocate
                    887: [THEN]
1.43      pazsan    888: 
                    889: >CROSS
                    890: 
1.52      jwilke    891: \ \ Create additional parameters                         19jan95py
1.19      pazsan    892: 
1.71      jwilke    893: \ currently cross only works for host machines with address-unit-bits
                    894: \ eual to 8 because of s! and sc!
                    895: \ but I start to query the environment just to modularize a little bit
                    896: 
                    897: : check-address-unit-bits ( -- )       
                    898: \      s" ADDRESS-UNIT-BITS" environment?
                    899: \      IF 8 <> ELSE true THEN
                    900: \      ABORT" ADDRESS-UNIT-BITS unknown or not equal to 8!"
                    901: 
                    902: \      shit, this doesn't work because environment? is only defined for 
                    903: \      gforth.fi and not kernl???.fi
                    904:        ;
                    905: 
                    906: check-address-unit-bits
                    907: 8 Constant bits/byte   \ we define: byte is address-unit
                    908: 
                    909: 1 bits/byte lshift Constant maxbyte 
1.77      jwilke    910: \ this sets byte size for the target machine, (probably right guess) jaw
1.67      jwilke    911: 
1.19      pazsan    912: T
1.71      jwilke    913: NIL                    Constant TNIL
                    914: cell                   Constant tcell
                    915: cell<<                 Constant tcell<<
                    916: cell>bit               Constant tcell>bit
                    917: bits/char              Constant tbits/char
                    918: bits/char H bits/byte T /      
                    919:                        Constant tchar
                    920: float                  Constant tfloat
                    921: 1 bits/char lshift     Constant tmaxchar
                    922: [IFUNDEF] bits/byte
                    923: 8                      Constant tbits/byte
                    924: [ELSE]
                    925: bits/byte              Constant tbits/byte
                    926: [THEN]
1.19      pazsan    927: H
1.81      pazsan    928: tbits/char bits/byte / Constant tbyte
1.71      jwilke    929: 
1.19      pazsan    930: 
1.48      anton     931: \ Variables                                            06oct92py
                    932: 
                    933: Variable image
                    934: Variable tlast    TNIL tlast !  \ Last name field
                    935: Variable tlastcfa \ Last code field
                    936: Variable tdoes    \ Resolve does> calls
                    937: Variable bit$
1.52      jwilke    938: 
                    939: \ statistics                                           10jun97jaw
                    940: 
                    941: Variable headers-named 0 headers-named !
                    942: Variable user-vars 0 user-vars !
                    943: 
1.67      jwilke    944: : target>bitmask-size ( u1 -- u2 )
                    945:   1- tcell>bit rshift 1+ ;
                    946: 
                    947: : allocatetarget ( size --- adr )
                    948:   dup allocate ABORT" CROSS: No memory for target"
                    949:   swap over swap erase ;
1.52      jwilke    950: 
1.54      pazsan    951: \ \ memregion.fs
1.52      jwilke    952: 
                    953: 
                    954: Variable last-defined-region    \ pointer to last defined region
                    955: Variable region-link            \ linked list with all regions
                    956: Variable mirrored-link          \ linked list for mirrored regions
                    957: 0 dup mirrored-link ! region-link !
                    958: 
                    959: 
1.67      jwilke    960: : >rname 6 cells + ;
                    961: : >rbm   5 cells + ;
                    962: : >rmem  4 cells + ;
                    963: : >rlink 3 cells + ;
1.52      jwilke    964: : >rdp 2 cells + ;
                    965: : >rlen cell+ ;
                    966: : >rstart ;
                    967: 
                    968: 
                    969: : region ( addr len -- )                \G create a new region
                    970:   \ check whether predefined region exists 
                    971:   save-input bl word find >r >r restore-input throw r> r> 0= 
                    972:   IF   \ make region
                    973:        drop
                    974:        save-input create restore-input throw
                    975:        here last-defined-region !
                    976:        over ( startaddr ) , ( length ) , ( dp ) ,
1.67      jwilke    977:        region-link linked 0 , 0 , bl word count string,
1.52      jwilke    978:   ELSE \ store new parameters in region
                    979:         bl word drop
                    980:        >body >r r@ last-defined-region !
1.67      jwilke    981:        r@ >rlen ! dup r@ >rstart ! r> >rdp !
1.52      jwilke    982:   THEN ;
                    983: 
                    984: : borders ( region -- startaddr endaddr ) \G returns lower and upper region border
1.67      jwilke    985:   dup >rstart @ swap >rlen @ over + ;
1.52      jwilke    986: 
                    987: : extent  ( region -- startaddr len )   \G returns the really used area
1.67      jwilke    988:   dup >rstart @ swap >rdp @ over - ;
1.52      jwilke    989: 
                    990: : area ( region -- startaddr totallen ) \G returns the total area
1.79      jwilke    991:   dup >rstart @ swap >rlen @ ;
1.52      jwilke    992: 
                    993: : mirrored                              \G mark a region as mirrored
                    994:   mirrored-link
1.68      jwilke    995:   align linked last-defined-region @ , ;
1.52      jwilke    996: 
1.67      jwilke    997: : .addr ( u -- )
                    998: \G prints a 16 or 32 Bit nice hex value
1.52      jwilke    999:   base @ >r hex
                   1000:   tcell 2 u>
1.77      jwilke   1001:   IF s>d <# # # # # [char] . hold # # # # #> type
1.52      jwilke   1002:   ELSE s>d <# # # # # # #> type
                   1003:   THEN r> base ! ;
                   1004: 
                   1005: : .regions                      \G display region statistic
                   1006: 
                   1007:   \ we want to list the regions in the right order
                   1008:   \ so first collect all regions on stack
                   1009:   0 region-link @
                   1010:   BEGIN dup WHILE dup @ REPEAT drop
                   1011:   BEGIN dup
1.67      jwilke   1012:   WHILE cr
                   1013:         0 >rlink - >r
                   1014:         r@ >rname count tuck type
1.52      jwilke   1015:         12 swap - 0 max spaces space
1.67      jwilke   1016:         ." Start: " r@ >rstart @ dup .addr space
                   1017:         ." End: " r@ >rlen @ + .addr space
                   1018:         ." DP: " r> >rdp @ .addr
1.52      jwilke   1019:   REPEAT drop
1.53      jwilke   1020:   s" rom" T $has? H 0= ?EXIT
1.52      jwilke   1021:   cr ." Mirrored:"
                   1022:   mirrored-link @
                   1023:   BEGIN dup
1.67      jwilke   1024:   WHILE space dup cell+ @ >rname count type @
1.52      jwilke   1025:   REPEAT drop cr
                   1026:   ;
                   1027: 
                   1028: \ -------- predefined regions
                   1029: 
                   1030: 0 0 region address-space
                   1031: \ total memory addressed and used by the target system
                   1032: 
                   1033: 0 0 region dictionary
                   1034: \ rom area for the compiler
                   1035: 
1.53      jwilke   1036: T has? rom H
1.52      jwilke   1037: [IF]
                   1038: 0 0 region ram-dictionary mirrored
                   1039: \ ram area for the compiler
                   1040: [ELSE]
                   1041: ' dictionary ALIAS ram-dictionary
                   1042: [THEN]
                   1043: 
                   1044: 0 0 region return-stack
                   1045: 
                   1046: 0 0 region data-stack
                   1047: 
                   1048: 0 0 region tib-region
                   1049: 
                   1050: ' dictionary ALIAS rom-dictionary
                   1051: 
                   1052: 
                   1053: : setup-target ( -- )   \G initialize targets memory space
1.53      jwilke   1054:   s" rom" T $has? H
1.52      jwilke   1055:   IF  \ check for ram and rom...
1.72      jwilke   1056:       \ address-space area nip 0<>
1.67      jwilke   1057:       ram-dictionary area nip 0<>
                   1058:       rom-dictionary area nip 0<>
1.72      jwilke   1059:       and 0=
1.52      jwilke   1060:       ABORT" CROSS: define address-space, rom- , ram-dictionary, with rom-support!"
                   1061:   THEN
                   1062:   address-space area nip
                   1063:   IF
                   1064:       address-space area
                   1065:   ELSE
                   1066:       dictionary area
                   1067:   THEN
1.67      jwilke   1068:   nip 0=
1.52      jwilke   1069:   ABORT" CROSS: define at least address-space or dictionary!!"
1.67      jwilke   1070: 
                   1071:   \ allocate target for each region
                   1072:   region-link
                   1073:   BEGIN @ dup
                   1074:   WHILE dup
                   1075:         0 >rlink - >r
                   1076:         r@ >rlen @
                   1077:         IF      \ allocate mem
                   1078:                 r@ >rlen @ dup
                   1079: 
                   1080:                 allocatetarget dup image !
                   1081:                 r@ >rmem !
                   1082: 
                   1083:                 target>bitmask-size allocatetarget
1.72      jwilke   1084:                 dup bit$ !
1.67      jwilke   1085:                 r> >rbm !
                   1086: 
                   1087:         ELSE    r> drop THEN
1.72      jwilke   1088:    REPEAT drop ;
                   1089: 
                   1090: \ MakeKernal                                                           22feb99jaw
                   1091: 
                   1092: : makekernel ( targetsize -- targetsize )
                   1093:   dup dictionary >rlen ! setup-target ;
                   1094: 
                   1095: >MINIMAL
                   1096: : makekernel makekernel ;
                   1097: >CROSS
1.52      jwilke   1098: 
1.54      pazsan   1099: \ \ switched tdp for rom support                               03jun97jaw
1.52      jwilke   1100: 
                   1101: \ second value is here to store some maximal value for statistics
                   1102: \ tempdp is also embedded here but has nothing to do with rom support
                   1103: \ (needs switched dp)
                   1104: 
                   1105: variable tempdp        0 ,     \ temporary dp for resolving
                   1106: variable tempdp-save
                   1107: 
                   1108: 0 [IF]
                   1109: variable romdp 0 ,      \ Dictionary-Pointer for ramarea
                   1110: variable ramdp 0 ,      \ Dictionary-Pointer for romarea
                   1111: 
                   1112: \
                   1113: variable sramdp                \ start of ram-area for forth
                   1114: variable sromdp                \ start of rom-area for forth
                   1115: 
                   1116: [THEN]
                   1117: 
                   1118: 
                   1119: 0 value tdp
                   1120: variable fixed         \ flag: true: no automatic switching
                   1121:                        \       false: switching is done automatically
                   1122: 
                   1123: \ Switch-Policy:
                   1124: \
                   1125: \ a header is always compiled into rom
                   1126: \ after a created word (create and variable) compilation goes to ram
                   1127: \
                   1128: \ Be careful: If you want to make the data behind create into rom
                   1129: \ you have to put >rom before create!
                   1130: 
                   1131: variable constflag constflag off
                   1132: 
1.67      jwilke   1133: : activate ( region -- )
                   1134: \G next code goes to this region
                   1135:   >rdp to tdp ;
                   1136: 
1.52      jwilke   1137: : (switchram)
1.53      jwilke   1138:   fixed @ ?EXIT s" rom" T $has? H 0= ?EXIT
1.67      jwilke   1139:   ram-dictionary activate ;
1.52      jwilke   1140: 
                   1141: : switchram
                   1142:   constflag @
                   1143:   IF constflag off ELSE (switchram) THEN ;
                   1144: 
                   1145: : switchrom
1.67      jwilke   1146:   fixed @ ?EXIT rom-dictionary activate ;
1.52      jwilke   1147: 
                   1148: : >tempdp ( addr -- ) 
                   1149:   tdp tempdp-save ! tempdp to tdp tdp ! ;
                   1150: : tempdp> ( -- )
                   1151:   tempdp-save @ to tdp ;
                   1152: 
                   1153: : >ram  fixed off (switchram) fixed on ;
                   1154: : >rom  fixed off switchrom fixed on ;
                   1155: : >auto fixed off switchrom ;
                   1156: 
                   1157: 
                   1158: 
                   1159: \ : romstart dup sromdp ! romdp ! ;
                   1160: \ : ramstart dup sramdp ! ramdp ! ;
                   1161: 
1.67      jwilke   1162: \ default compilation goes to rom
1.52      jwilke   1163: \ when romable support is off, only the rom switch is used (!!)
                   1164: >auto
                   1165: 
1.48      anton    1166: : there  tdp @ ;
                   1167: 
1.52      jwilke   1168: >TARGET
1.48      anton    1169: 
1.52      jwilke   1170: \ \ Target Memory Handling
1.1       anton    1171: 
                   1172: \ Byte ordering and cell size                          06oct92py
                   1173: 
1.19      pazsan   1174: : cell+         tcell + ;
                   1175: : cells         tcell<< lshift ;
1.71      jwilke   1176: : chars         tchar * ;
                   1177: : char+                tchar + ;
1.19      pazsan   1178: : floats       tfloat * ;
1.6       anton    1179:     
1.1       anton    1180: >CROSS
1.19      pazsan   1181: : cell/         tcell<< rshift ;
1.1       anton    1182: >TARGET
                   1183: 20 CONSTANT bl
1.52      jwilke   1184: \ TNIL Constant NIL
1.1       anton    1185: 
                   1186: >CROSS
                   1187: 
1.20      pazsan   1188: bigendian
                   1189: [IF]
1.52      jwilke   1190:    : S!  ( n addr -- )  >r s>d r> tcell bounds swap 1-
1.20      pazsan   1191:      DO  maxbyte ud/mod rot I c!  -1 +LOOP  2drop ;
1.52      jwilke   1192:    : S@  ( addr -- n )  >r 0 0 r> tcell bounds
1.20      pazsan   1193:      DO  maxbyte * swap maxbyte um* rot + swap I c@ + swap  LOOP d>s ;
1.57      pazsan   1194:    : Sc!  ( n addr -- )  >r s>d r> tchar bounds swap 1-
                   1195:      DO  maxbyte ud/mod rot I c!  -1 +LOOP  2drop ;
                   1196:    : Sc@  ( addr -- n )  >r 0 0 r> tchar bounds
                   1197:      DO  maxbyte * swap maxbyte um* rot + swap I c@ + swap  LOOP d>s ;
1.19      pazsan   1198: [ELSE]
1.52      jwilke   1199:    : S!  ( n addr -- )  >r s>d r> tcell bounds
1.20      pazsan   1200:      DO  maxbyte ud/mod rot I c!  LOOP  2drop ;
1.52      jwilke   1201:    : S@  ( addr -- n )  >r 0 0 r> tcell bounds swap 1-
1.20      pazsan   1202:      DO  maxbyte * swap maxbyte um* rot + swap I c@ + swap  -1 +LOOP d>s ;
1.57      pazsan   1203:    : Sc!  ( n addr -- )  >r s>d r> tchar bounds
                   1204:      DO  maxbyte ud/mod rot I c!  LOOP  2drop ;
                   1205:    : Sc@  ( addr -- n )  >r 0 0 r> tchar bounds swap 1-
                   1206:      DO  maxbyte * swap maxbyte um* rot + swap I c@ + swap  -1 +LOOP d>s ;
1.1       anton    1207: [THEN]
                   1208: 
1.67      jwilke   1209: : taddr>region ( taddr -- region | 0 )
                   1210: \G finds for a target-address the correct region
                   1211: \G returns 0 if taddr is not in range of a target memory region
                   1212:   region-link
                   1213:   BEGIN @ dup
                   1214:   WHILE dup >r
                   1215:         0 >rlink - >r
                   1216:         r@ >rlen @
                   1217:         IF      dup r@ borders within
                   1218:                 IF r> r> drop nip EXIT THEN
                   1219:         THEN
                   1220:         r> drop
                   1221:         r>
                   1222:   REPEAT
                   1223:   2drop 0 ;
                   1224: 
                   1225: : (>regionimage) ( taddr -- 'taddr )
                   1226:   dup
                   1227:   \ find region we want to address
                   1228:   taddr>region dup 0= ABORT" Address out of range!"
                   1229:   >r
                   1230:   \ calculate offset in region
                   1231:   r@ >rstart @ -
                   1232:   \ add regions real address in our memory
                   1233:   r> >rmem @ + ;
                   1234: 
1.1       anton    1235: \ Bit string manipulation                               06oct92py
                   1236: \                                                       9may93jaw
                   1237: CREATE Bittable 80 c, 40 c, 20 c, 10 c, 8 c, 4 c, 2 c, 1 c,
                   1238: : bits ( n -- n ) chars Bittable + c@ ;
                   1239: 
                   1240: : >bit ( addr n -- c-addr mask ) 8 /mod rot + swap bits ;
                   1241: : +bit ( addr n -- )  >bit over c@ or swap c! ;
1.4       pazsan   1242: : -bit ( addr n -- )  >bit invert over c@ and swap c! ;
1.67      jwilke   1243: 
1.84      jwilke   1244: : (relon) ( taddr -- )  
                   1245:   [ [IFDEF] fd-relocation-table ]
                   1246:   s" +" fd-relocation-table write-file throw
                   1247:   dup s>d <# #s #> fd-relocation-table write-line throw
                   1248:   [ [THEN] ]
                   1249:   bit$ @ swap cell/ +bit ;
                   1250: 
                   1251: : (reloff) ( taddr -- ) 
                   1252:   [ [IFDEF] fd-relocation-table ]
                   1253:   s" -" fd-relocation-table write-file throw
                   1254:   dup s>d <# #s #> fd-relocation-table write-line throw
                   1255:   [ [THEN] ]
                   1256:   bit$ @ swap cell/ -bit ;
1.67      jwilke   1257: 
                   1258: : (>image) ( taddr -- absaddr ) image @ + ;
                   1259: 
                   1260: DEFER >image
                   1261: DEFER relon
                   1262: DEFER reloff
                   1263: DEFER correcter
                   1264: 
                   1265: T has? relocate H
                   1266: [IF]
                   1267: ' (relon) IS relon
                   1268: ' (reloff) IS reloff
                   1269: ' (>image) IS >image
                   1270: [ELSE]
                   1271: ' drop IS relon
                   1272: ' drop IS reloff
1.68      jwilke   1273: ' (>regionimage) IS >image
1.67      jwilke   1274: [THEN]
1.1       anton    1275: 
                   1276: \ Target memory access                                 06oct92py
                   1277: 
                   1278: : align+  ( taddr -- rest )
1.48      anton    1279:     tcell tuck 1- and - [ tcell 1- ] Literal and ;
1.22      anton    1280: : cfalign+  ( taddr -- rest )
1.39      pazsan   1281:     \ see kernel.fs:cfaligned
1.43      pazsan   1282:     /maxalign tuck 1- and - [ /maxalign 1- ] Literal and ;
1.1       anton    1283: 
                   1284: >TARGET
                   1285: : aligned ( taddr -- ta-addr )  dup align+ + ;
                   1286: \ assumes cell alignment granularity (as GNU C)
                   1287: 
1.22      anton    1288: : cfaligned ( taddr1 -- taddr2 )
1.39      pazsan   1289:     \ see kernel.fs
1.22      anton    1290:     dup cfalign+ + ;
                   1291: 
1.52      jwilke   1292: : @  ( taddr -- w )     >image S@ ;
                   1293: : !  ( w taddr -- )     >image S! ;
1.57      pazsan   1294: : c@ ( taddr -- char )  >image Sc@ ;
                   1295: : c! ( char taddr -- )  >image Sc! ;
1.7       anton    1296: : 2@ ( taddr -- x1 x2 ) T dup cell+ @ swap @ H ;
1.82      pazsan   1297: : 2! ( x1 x2 taddr -- ) T tuck ! cell+ ! H ;
1.1       anton    1298: 
                   1299: \ Target compilation primitives                        06oct92py
                   1300: \ included A!                                          16may93jaw
                   1301: 
                   1302: : here  ( -- there )    there ;
                   1303: : allot ( n -- )        tdp +! ;
1.78      jwilke   1304: : ,     ( w -- )        T here H tcell T allot  ! H ;
                   1305: : c,    ( char -- )     T here H tchar T allot c! H ;
                   1306: : align ( -- )          T here H align+ 0 ?DO  bl T c, H tchar +LOOP ;
1.22      anton    1307: : cfalign ( -- )
1.78      jwilke   1308:     T here H cfalign+ 0 ?DO  bl T c, H tchar +LOOP ;
1.1       anton    1309: 
1.71      jwilke   1310: : >address             dup 0>= IF tbyte / THEN ; \ ?? jaw 
1.59      pazsan   1311: : A!                    swap >address swap dup relon T ! H ;
                   1312: : A,    ( w -- )        >address T here H relon T , H ;
1.1       anton    1313: 
                   1314: >CROSS
                   1315: 
1.52      jwilke   1316: : tcmove ( source dest len -- )
                   1317: \G cmove in target memory
1.57      pazsan   1318:   tchar * bounds
1.52      jwilke   1319:   ?DO  dup T c@ H I T c! H 1+
1.57      pazsan   1320:   tchar +LOOP  drop ;
1.1       anton    1321: 
1.67      jwilke   1322: \ \ Load Assembler
                   1323: 
1.1       anton    1324: >TARGET
1.74      jwilke   1325: H also Forth definitions
1.1       anton    1326: 
1.77      jwilke   1327: : X    bl word count [ ' target >wordlist ] Literal search-wordlist
1.52      jwilke   1328:        IF      state @ IF compile,
                   1329:                ELSE execute THEN
1.77      jwilke   1330:        ELSE    -1 ABORT" Cross: access method not supported!"
                   1331:        THEN ; immediate
1.1       anton    1332: 
1.52      jwilke   1333: [IFDEF] asm-include asm-include [THEN] hex
1.1       anton    1334: 
1.52      jwilke   1335: previous
                   1336: >CROSS H
1.1       anton    1337: 
1.52      jwilke   1338: \ \ --------------------        Compiler Plug Ins               01aug97jaw
1.1       anton    1339: 
1.52      jwilke   1340: >TARGET
                   1341: DEFER >body             \ we need the system >body
                   1342:                        \ and the target >body
                   1343: >CROSS
                   1344: T 2 cells H VALUE xt>body
1.54      pazsan   1345: DEFER doprim,  \ compiles start of a primitive
                   1346: DEFER docol,           \ compiles start of a colon definition
1.52      jwilke   1347: DEFER doer,            
                   1348: DEFER fini,      \ compiles end of definition ;s
                   1349: DEFER doeshandler,
                   1350: DEFER dodoes,
                   1351: 
                   1352: DEFER ]comp     \ starts compilation
                   1353: DEFER comp[     \ ends compilation
                   1354: 
1.94      pazsan   1355: : (prim) T a, H ;                              ' (prim) IS prim,
1.54      pazsan   1356: 
1.94      pazsan   1357: : (cr) >tempdp ]comp prim, comp[ tempdp> ;     ' (cr) IS colon-resolve
1.54      pazsan   1358: : (ar) T ! H ;                                 ' (ar) IS addr-resolve
                   1359: : (dr)  ( ghost res-pnt target-addr addr )
                   1360:        >tempdp drop over 
                   1361:        dup >magic @ <do:> =
                   1362:        IF      doer,
                   1363:        ELSE    dodoes,
                   1364:        THEN 
                   1365:        tempdp> ;                               ' (dr) IS doer-resolve
                   1366: 
                   1367: : (cm) ( -- addr )
                   1368:     T here align H
1.94      pazsan   1369:     -1 prim, ;                                 ' (cm) IS colonmark,
1.1       anton    1370: 
1.52      jwilke   1371: >TARGET
1.94      pazsan   1372: : compile, prim, ;
1.52      jwilke   1373: >CROSS
1.1       anton    1374: 
1.52      jwilke   1375: : refered ( ghost tag -- )
1.53      jwilke   1376: \G creates a resolve structure
1.54      pazsan   1377:     T here aligned H swap (refered)
                   1378:   ;
                   1379: 
                   1380: : killref ( addr ghost -- )
                   1381: \G kills a forward reference to ghost at position addr
                   1382: \G this is used to eleminate a :dovar refence after making a DOES>
                   1383:     dup >magic @ <fwd> <> IF 2drop EXIT THEN
                   1384:     swap >r >link
                   1385:     BEGIN dup @ dup  ( addr last this )
                   1386:     WHILE dup >taddr @ r@ =
                   1387:         IF   @ over !
                   1388:         ELSE nip THEN
                   1389:     REPEAT rdrop 2drop 
1.53      jwilke   1390:   ;
1.48      anton    1391: 
1.52      jwilke   1392: Defer resolve-warning
1.1       anton    1393: 
1.52      jwilke   1394: : reswarn-test ( ghost res-struct -- ghost res-struct )
1.78      jwilke   1395:   over cr ." Resolving " .ghost dup ."  in " >ghost @ .ghost ;
1.1       anton    1396: 
1.52      jwilke   1397: : reswarn-forward ( ghost res-struct -- ghost res-struct )
1.78      jwilke   1398:   over warnhead .ghost dup ."  is referenced in " 
                   1399:   >ghost @ .ghost ;
1.1       anton    1400: 
1.52      jwilke   1401: \ ' reswarn-test IS resolve-warning
                   1402:  
1.1       anton    1403: \ resolve                                              14oct92py
                   1404: 
1.54      pazsan   1405:  : resolve-loop ( ghost resolve-list tcfa -- )
                   1406:     >r
                   1407:     BEGIN dup WHILE 
                   1408: \        dup >tag @ 2 = IF reswarn-forward THEN
                   1409:          resolve-warning 
                   1410:          r@ over >taddr @ 
                   1411:          2 pick >tag @
                   1412:          CASE  0 OF colon-resolve ENDOF
                   1413:                1 OF addr-resolve ENDOF
                   1414:                2 OF doer-resolve ENDOF
                   1415:          ENDCASE
                   1416:          @ \ next list element
                   1417:     REPEAT 2drop rdrop 
                   1418:   ;
1.52      jwilke   1419: 
                   1420: \ : resolve-loop ( ghost tcfa -- ghost tcfa )
                   1421: \  >r dup >link @
                   1422: \  BEGIN  dup  WHILE  dup T @ H r@ rot T ! H REPEAT  drop r> ;
1.1       anton    1423: 
                   1424: \ exists                                                9may93jaw
                   1425: 
1.52      jwilke   1426: Variable TWarnings
                   1427: TWarnings on
                   1428: Variable Exists-Warnings
                   1429: Exists-Warnings on
                   1430: 
1.1       anton    1431: : exists ( ghost tcfa -- )
                   1432:   over GhostNames
                   1433:   BEGIN @ dup
                   1434:   WHILE 2dup cell+ @ =
                   1435:   UNTIL
1.52      jwilke   1436:         2 cells + count
                   1437:         TWarnings @ Exists-Warnings @ and
                   1438:         IF warnhead type ."  exists"
                   1439:         ELSE 2drop THEN
                   1440:         drop swap >link !
1.24      pazsan   1441:   ELSE  true abort" CROSS: Ghostnames inconsistent "
1.1       anton    1442:   THEN ;
                   1443: 
1.94      pazsan   1444: : colon-resolved   ( ghost -- )
                   1445:     >link @ colon, ; \ compile-call
                   1446: : prim-resolved  ( ghost -- )
                   1447:     >link @ prim, ;
1.93      pazsan   1448: 
1.1       anton    1449: : resolve  ( ghost tcfa -- )
1.54      pazsan   1450: \G resolve referencies to ghost with tcfa
                   1451:     \ is ghost resolved?, second resolve means another definition with the
                   1452:     \ same name
1.75      jwilke   1453:     over undefined? 0= IF  exists EXIT THEN
1.54      pazsan   1454:     \ get linked-list
                   1455:     swap >r r@ >link @ swap \ ( list tcfa R: ghost )
                   1456:     \ mark ghost as resolved
                   1457:     dup r@ >link ! <res> r@ >magic !
1.94      pazsan   1458:     r@ >comp @ ['] is-forward = IF
                   1459:        ['] prim-resolved  r@ >comp !  THEN
1.54      pazsan   1460:     \ loop through forward referencies
                   1461:     r> -rot 
                   1462:     comp-state @ >r Resolving comp-state !
                   1463:     resolve-loop 
                   1464:     r> comp-state !
                   1465: 
                   1466:     ['] noop IS resolve-warning 
1.52      jwilke   1467:   ;
1.1       anton    1468: 
                   1469: \ gexecute ghost,                                      01nov92py
                   1470: 
1.52      jwilke   1471: : gexecute   ( ghost -- )
1.93      pazsan   1472:     dup >comp @ execute ;
1.52      jwilke   1473: 
                   1474: : addr,  ( ghost -- )
1.93      pazsan   1475:   dup forward? IF  1 refered 0 T a, H ELSE >link @ T a, H THEN ;
1.52      jwilke   1476: 
                   1477: \ !! : ghost,     ghost  gexecute ;
1.1       anton    1478: 
                   1479: \ .unresolved                                          11may93jaw
                   1480: 
                   1481: variable ResolveFlag
                   1482: 
                   1483: \ ?touched                                             11may93jaw
                   1484: 
1.52      jwilke   1485: : ?touched ( ghost -- flag ) dup forward? swap >link @
1.1       anton    1486:                                0 <> and ;
                   1487: 
1.53      jwilke   1488: : .forwarddefs ( ghost -- )
                   1489:        ."  appeared in:"
                   1490:        >link
                   1491:        BEGIN   @ dup
                   1492:        WHILE   cr 5 spaces
1.78      jwilke   1493:                dup >ghost @ .ghost
1.53      jwilke   1494:                ."  file " dup >file @ ?dup IF count type ELSE ." CON" THEN
                   1495:                ."  line " dup >line @ .dec
                   1496:        REPEAT 
                   1497:        drop ;
                   1498: 
1.1       anton    1499: : ?resolved  ( ghostname -- )
                   1500:   dup cell+ @ ?touched
1.53      jwilke   1501:   IF   dup 
                   1502:        cell+ cell+ count cr type ResolveFlag on 
                   1503:        cell+ @ .forwarddefs
                   1504:   ELSE         drop 
                   1505:   THEN ;
1.1       anton    1506: 
                   1507: : .unresolved  ( -- )
                   1508:   ResolveFlag off cr ." Unresolved: "
                   1509:   Ghostnames
                   1510:   BEGIN @ dup
                   1511:   WHILE dup ?resolved
1.10      anton    1512:   REPEAT drop ResolveFlag @
                   1513:   IF
1.48      anton    1514:       -1 abort" Unresolved words!"
1.10      anton    1515:   ELSE
                   1516:       ." Nothing!"
                   1517:   THEN
                   1518:   cr ;
1.1       anton    1519: 
1.52      jwilke   1520: : .stats
                   1521:   base @ >r decimal
                   1522:   cr ." named Headers: " headers-named @ . 
                   1523:   r> base ! ;
                   1524: 
1.79      jwilke   1525: >MINIMAL
                   1526: 
                   1527: : .unresolved .unresolved ;
                   1528: 
1.1       anton    1529: >CROSS
                   1530: \ Header states                                        12dec92py
                   1531: 
1.90      pazsan   1532: bigendian [IF] 0 [ELSE] tcell 1- [THEN] Constant flag+
                   1533: : flag! ( w -- )   tlast @ flag+ + dup >r T c@ xor r> c! H ;
1.1       anton    1534: 
                   1535: VARIABLE ^imm
                   1536: 
1.89      anton    1537: \ !! should be target wordsize specific
1.90      pazsan   1538: $80 constant alias-mask
                   1539: $40 constant immediate-mask
                   1540: $20 constant restrict-mask
1.89      anton    1541: 
1.1       anton    1542: >TARGET
1.89      anton    1543: : immediate     immediate-mask flag!
1.18      pazsan   1544:                 ^imm @ @ dup <imm> = IF  drop  EXIT  THEN
1.1       anton    1545:                 <res> <> ABORT" CROSS: Cannot immediate a unresolved word"
                   1546:                 <imm> ^imm @ ! ;
1.89      anton    1547: : restrict      restrict-mask flag! ;
1.52      jwilke   1548: 
1.54      pazsan   1549: : isdoer       
                   1550: \G define a forth word as doer, this makes obviously only sence on
                   1551: \G forth processors such as the PSC1000
                   1552:                <do:> last-header-ghost @ >magic ! ;
1.1       anton    1553: >CROSS
                   1554: 
                   1555: \ Target Header Creation                               01nov92py
                   1556: 
1.52      jwilke   1557: >TARGET
1.1       anton    1558: : string,  ( addr count -- )
1.89      anton    1559:     dup T c, H bounds  ?DO  I c@ T c, H  LOOP ;
                   1560: : lstring, ( addr count -- )
                   1561:     dup T , H bounds  ?DO  I c@ T c, H  LOOP ;
                   1562: : name,  ( "name" -- )  bl word count T lstring, cfalign H ;
1.1       anton    1563: : view,   ( -- ) ( dummy ) ;
1.52      jwilke   1564: >CROSS
1.1       anton    1565: 
1.25      pazsan   1566: \ Target Document Creation (goes to crossdoc.fd)       05jul95py
                   1567: 
1.55      pazsan   1568: s" ./doc/crossdoc.fd" r/w create-file throw value doc-file-id
1.25      pazsan   1569: \ contains the file-id of the documentation file
                   1570: 
1.40      pazsan   1571: : T-\G ( -- )
1.25      pazsan   1572:     source >in @ /string doc-file-id write-line throw
1.40      pazsan   1573:     postpone \ ;
1.25      pazsan   1574: 
1.39      pazsan   1575: Variable to-doc  to-doc on
1.25      pazsan   1576: 
                   1577: : cross-doc-entry  ( -- )
                   1578:     to-doc @ tlast @ 0<> and   \ not an anonymous (i.e. noname) header
                   1579:     IF
                   1580:        s" " doc-file-id write-line throw
                   1581:        s" make-doc " doc-file-id write-file throw
1.77      jwilke   1582: 
                   1583:        tlast @ >image count 1F and doc-file-id write-file throw
1.25      pazsan   1584:        >in @
                   1585:        [char] ( parse 2drop
                   1586:        [char] ) parse doc-file-id write-file throw
                   1587:        s"  )" doc-file-id write-file throw
                   1588:        [char] \ parse 2drop                                    
1.40      pazsan   1589:        T-\G
1.25      pazsan   1590:        >in !
1.39      pazsan   1591:     THEN ;
1.25      pazsan   1592: 
1.28      pazsan   1593: \ Target TAGS creation
                   1594: 
1.39      pazsan   1595: s" kernel.TAGS" r/w create-file throw value tag-file-id
1.28      pazsan   1596: \ contains the file-id of the tags file
                   1597: 
                   1598: Create tag-beg 2 c,  7F c, bl c,
                   1599: Create tag-end 2 c,  bl c, 01 c,
                   1600: Create tag-bof 1 c,  0C c,
                   1601: 
                   1602: 2variable last-loadfilename 0 0 last-loadfilename 2!
                   1603:            
                   1604: : put-load-file-name ( -- )
1.77      jwilke   1605:     sourcefilename last-loadfilename 2@ d<>
1.28      pazsan   1606:     IF
                   1607:        tag-bof count tag-file-id write-line throw
1.31      anton    1608:        sourcefilename 2dup
1.28      pazsan   1609:        tag-file-id write-file throw
                   1610:        last-loadfilename 2!
                   1611:        s" ,0" tag-file-id write-line throw
                   1612:     THEN ;
                   1613: 
                   1614: : cross-tag-entry  ( -- )
                   1615:     tlast @ 0<>        \ not an anonymous (i.e. noname) header
                   1616:     IF
                   1617:        put-load-file-name
                   1618:        source >in @ min tag-file-id write-file throw
                   1619:        tag-beg count tag-file-id write-file throw
1.77      jwilke   1620:        tlast @ >image count 1F and tag-file-id write-file throw
1.28      pazsan   1621:        tag-end count tag-file-id write-file throw
1.31      anton    1622:        base @ decimal sourceline# 0 <# #s #> tag-file-id write-file throw
1.28      pazsan   1623: \      >in @ 0 <# #s [char] , hold #> tag-file-id write-line throw
                   1624:        s" ,0" tag-file-id write-line throw
                   1625:        base !
                   1626:     THEN ;
                   1627: 
1.43      pazsan   1628: \ Check for words
                   1629: 
                   1630: Defer skip? ' false IS skip?
                   1631: 
1.75      jwilke   1632: : skipdef ( <name> -- )
1.79      jwilke   1633: \G skip definition of an undefined word in undef-words and
                   1634: \G all-words mode
1.75      jwilke   1635:     ghost dup forward?
                   1636:     IF  >magic <skip> swap !
                   1637:     ELSE drop THEN ;
                   1638: 
1.77      jwilke   1639: : tdefined? ( -- flag ) \ name
1.75      jwilke   1640:     ghost undefined? 0= ;
                   1641: 
                   1642: : defined2? ( -- flag ) \ name
                   1643: \G return true for anything else than forward, even for <skip>
                   1644: \G that's what we want
1.52      jwilke   1645:     ghost forward? 0= ;
1.43      pazsan   1646: 
1.79      jwilke   1647: : forced? ( -- flag ) \ name
                   1648: \G return ture if it is a foreced skip with defskip
                   1649:     ghost >magic @ <skip> = ;
                   1650: 
1.43      pazsan   1651: : needed? ( -- flag ) \ name
1.48      anton    1652: \G returns a false flag when
                   1653: \G a word is not defined
                   1654: \G a forward reference exists
                   1655: \G so the definition is not skipped!
                   1656:     bl word gfind
1.75      jwilke   1657:     IF dup undefined?
1.48      anton    1658:        nip
                   1659:        0=
                   1660:     ELSE  drop true  THEN ;
1.43      pazsan   1661: 
1.44      pazsan   1662: : doer? ( -- flag ) \ name
                   1663:     ghost >magic @ <do:> = ;
                   1664: 
1.43      pazsan   1665: : skip-defs ( -- )
                   1666:     BEGIN  refill  WHILE  source -trailing nip 0= UNTIL  THEN ;
                   1667: 
1.28      pazsan   1668: \ Target header creation
                   1669: 
1.54      pazsan   1670: Variable NoHeaderFlag
                   1671: NoHeaderFlag off
1.1       anton    1672: 
1.54      pazsan   1673: : 0.r ( n1 n2 -- ) 
                   1674:     base @ >r hex 
                   1675:     0 swap <# 0 ?DO # LOOP #> type 
                   1676:     r> base ! ;
1.84      jwilke   1677: 
                   1678: : .sym ( adr len -- )
                   1679: \G escapes / and \ to produce sed output
1.52      jwilke   1680:   bounds 
                   1681:   DO I c@ dup
1.77      jwilke   1682:        CASE    [char] / OF drop ." \/" ENDOF
                   1683:                [char] \ OF drop ." \\" ENDOF
1.52      jwilke   1684:                dup OF emit ENDOF
                   1685:        ENDCASE
1.54      pazsan   1686:     LOOP ;
1.52      jwilke   1687: 
1.43      pazsan   1688: : (Theader ( "name" -- ghost )
1.54      pazsan   1689:     \  >in @ bl word count type 2 spaces >in !
                   1690:     \ wordheaders will always be compiled to rom
                   1691:     switchrom
                   1692:     \ build header in target
                   1693:     NoHeaderFlag @
                   1694:     IF  NoHeaderFlag off
                   1695:     ELSE
                   1696:        T align H view,
1.78      jwilke   1697:        tlast @ dup 0> IF tcell - THEN T A, H  there tlast !
1.54      pazsan   1698:        1 headers-named +!      \ Statistic
                   1699:        >in @ T name, H >in !
                   1700:     THEN
                   1701:     T cfalign here H tlastcfa !
1.84      jwilke   1702:     \ Old Symbol table sed-script
1.54      pazsan   1703: \    >in @ cr ." sym:s/CFA=" there 4 0.r ." /"  bl word count .sym ." /g" cr >in !
1.78      jwilke   1704:     ghost
1.84      jwilke   1705:     \ output symbol table to extra file
                   1706:     [ [IFDEF] fd-symbol-table ]
                   1707:       base @ hex there s>d <# 8 0 DO # LOOP #> fd-symbol-table write-file throw base !
                   1708:       s" :" fd-symbol-table write-file throw
                   1709:       dup >ghostname fd-symbol-table write-line throw
                   1710:     [ [THEN] ]
1.54      pazsan   1711:     dup Last-Header-Ghost !
                   1712:     dup >magic ^imm !     \ a pointer for immediate
                   1713:     Already @
                   1714:     IF  dup >end tdoes !
                   1715:     ELSE 0 tdoes !
                   1716:     THEN
1.89      anton    1717:     alias-mask flag!
1.54      pazsan   1718:     cross-doc-entry cross-tag-entry ;
1.1       anton    1719: 
                   1720: VARIABLE ;Resolve 1 cells allot
1.52      jwilke   1721: \ this is the resolver information from ":"
                   1722: \ resolving is done by ";"
1.1       anton    1723: 
1.11      pazsan   1724: : Theader  ( "name" -- ghost )
                   1725:   (THeader dup there resolve 0 ;Resolve ! ;
1.1       anton    1726: 
                   1727: >TARGET
                   1728: : Alias    ( cfa -- ) \ name
1.43      pazsan   1729:     >in @ skip? IF  2drop  EXIT  THEN  >in !
1.53      jwilke   1730:     dup 0< s" prims" T $has? H 0= and
1.43      pazsan   1731:     IF
1.53      jwilke   1732:        .sourcepos ." needs prim: " >in @ bl word count type >in ! cr
1.43      pazsan   1733:     THEN
1.89      anton    1734:     (THeader over resolve T A, H alias-mask flag! ;
1.42      pazsan   1735: : Alias:   ( cfa -- ) \ name
1.43      pazsan   1736:     >in @ skip? IF  2drop  EXIT  THEN  >in !
1.53      jwilke   1737:     dup 0< s" prims" T $has? H 0= and
1.43      pazsan   1738:     IF
1.53      jwilke   1739:        .sourcepos ." needs doer: " >in @ bl word count type >in ! cr
1.43      pazsan   1740:     THEN
                   1741:     ghost tuck swap resolve <do:> swap >magic ! ;
1.64      pazsan   1742: 
                   1743: Variable prim#
                   1744: : first-primitive ( n -- )  prim# ! ;
                   1745: : Primitive  ( -- ) \ name
                   1746:     prim# @ T Alias H  -1 prim# +! ;
1.1       anton    1747: >CROSS
                   1748: 
                   1749: \ Conditionals and Comments                            11may93jaw
                   1750: 
                   1751: : ;Cond
                   1752:   postpone ;
                   1753:   swap ! ;  immediate
                   1754: 
                   1755: : Cond: ( -- ) \ name {code } ;
                   1756:   atonce on
                   1757:   ghost
                   1758:   >exec
                   1759:   :NONAME ;
                   1760: 
                   1761: : restrict? ( -- )
                   1762: \ aborts on interprete state - ae
                   1763:   state @ 0= ABORT" CROSS: Restricted" ;
                   1764: 
                   1765: : Comment ( -- )
                   1766:   >in @ atonce on ghost swap >in ! ' swap >exec ! ;
                   1767: 
                   1768: Comment (       Comment \
                   1769: 
                   1770: \ compile                                              10may93jaw
                   1771: 
                   1772: : compile  ( -- ) \ name
                   1773:   restrict?
1.13      pazsan   1774:   bl word gfind dup 0= ABORT" CROSS: Can't compile "
1.1       anton    1775:   0> ( immediate? )
                   1776:   IF    >exec @ compile,
                   1777:   ELSE  postpone literal postpone gexecute  THEN ;
                   1778:                                         immediate
                   1779: 
1.96      pazsan   1780: T has? peephole H [IF]
1.95      pazsan   1781: : (cc) compile call T >body a, H ;             ' (cc) IS colon,
1.96      pazsan   1782: [ELSE]
                   1783:     ' (prim) IS colon,
                   1784: [THEN]
1.94      pazsan   1785: 
1.52      jwilke   1786: : [G'] 
                   1787: \G ticks a ghost and returns its address
                   1788:   bl word gfind 0= ABORT" CROSS: Ghost don't exists"
                   1789:   state @
                   1790:   IF   postpone literal
                   1791:   THEN ; immediate
                   1792: 
                   1793: : ghost>cfa
1.75      jwilke   1794:   dup undefined? ABORT" CROSS: forward " >link @ ;
1.52      jwilke   1795:                
                   1796: >TARGET
                   1797: 
                   1798: : '  ( -- cfa ) 
                   1799: \ returns the target-cfa of a ghost
                   1800:   bl word gfind 0= ABORT" CROSS: Ghost don't exists"
                   1801:   ghost>cfa ;
                   1802: 
                   1803: Cond: [']  T ' H alit, ;Cond
                   1804: 
                   1805: >CROSS
                   1806: 
                   1807: : [T']
                   1808: \ returns the target-cfa of a ghost, or compiles it as literal
                   1809:   postpone [G'] state @ IF postpone ghost>cfa ELSE ghost>cfa THEN ; immediate
1.42      pazsan   1810: 
1.52      jwilke   1811: \ \ threading modell                                   13dec92py
                   1812: \ modularized                                          14jun97jaw
                   1813: 
                   1814: : fillcfa   ( usedcells -- )
1.78      jwilke   1815:   T cells H xt>body swap - 0 ?DO 0 X c, tchar +LOOP ;
1.52      jwilke   1816: 
                   1817: : (>body)   ( cfa -- pfa ) xt>body + ;         ' (>body) T IS >body H
                   1818: 
1.94      pazsan   1819: : (doer,)   ( ghost -- ) ]comp addr, comp[ 1 fillcfa ;   ' (doer,) IS doer,
1.52      jwilke   1820: 
                   1821: : (docol,)  ( -- ) [G'] :docol doer, ;         ' (docol,) IS docol,
                   1822: 
                   1823: : (doprim,) ( -- )
                   1824:   there xt>body + ca>native T a, H 1 fillcfa ; ' (doprim,) IS doprim,
                   1825: 
                   1826: : (doeshandler,) ( -- ) 
                   1827:   T cfalign H compile :doesjump T 0 , H ;      ' (doeshandler,) IS doeshandler,
                   1828: 
                   1829: : (dodoes,) ( does-action-ghost -- )
                   1830:   ]comp [G'] :dodoes gexecute comp[
                   1831:   addr,
                   1832:   T here H tcell - reloff 2 fillcfa ;          ' (dodoes,) IS dodoes,
                   1833: 
                   1834: : (lit,) ( n -- )   compile lit T  ,  H ;      ' (lit,) IS lit,
                   1835: 
1.67      jwilke   1836: \ if we dont produce relocatable code alit, defaults to lit, jaw
1.84      jwilke   1837: \ this is just for convenience, so we don't have to define alit,
                   1838: \ seperately for embedded systems....
                   1839: T has? relocate H
1.67      jwilke   1840: [IF]
1.66      pazsan   1841: : (alit,) ( n -- )  compile lit T  a, H ;      ' (alit,) IS alit,
1.67      jwilke   1842: [ELSE]
                   1843: : (alit,) ( n -- )  lit, ;                     ' (alit,) IS alit,
                   1844: [THEN]
1.52      jwilke   1845: 
                   1846: : (fini,)         compile ;s ;                ' (fini,) IS fini,
1.42      pazsan   1847: 
1.43      pazsan   1848: [IFUNDEF] (code) 
                   1849: Defer (code)
                   1850: Defer (end-code)
                   1851: [THEN]
                   1852: 
1.1       anton    1853: >TARGET
1.43      pazsan   1854: : Code
1.52      jwilke   1855:   defempty?
1.48      anton    1856:   (THeader there resolve
1.53      jwilke   1857:   [ T e? prims H 0= [IF] T e? ITC H [ELSE] true [THEN] ] [IF]
1.52      jwilke   1858:   doprim, 
1.48      anton    1859:   [THEN]
                   1860:   depth (code) ;
1.43      pazsan   1861: 
                   1862: : Code:
1.52      jwilke   1863:   defempty?
1.48      anton    1864:     ghost dup there ca>native resolve  <do:> swap >magic !
1.43      pazsan   1865:     depth (code) ;
                   1866: 
                   1867: : end-code
1.52      jwilke   1868:     (end-code)
1.43      pazsan   1869:     depth ?dup IF   1- <> ABORT" CROSS: Stack changed"
                   1870:     ELSE true ABORT" CROSS: Stack empty" THEN
1.52      jwilke   1871:     ;
1.14      anton    1872: 
1.1       anton    1873: >CROSS
1.52      jwilke   1874: 
1.1       anton    1875: \ tLiteral                                             12dec92py
                   1876: 
                   1877: >TARGET
1.40      pazsan   1878: Cond: \G  T-\G ;Cond
                   1879: 
1.1       anton    1880: Cond:  Literal ( n -- )   restrict? lit, ;Cond
                   1881: Cond: ALiteral ( n -- )   restrict? alit, ;Cond
                   1882: 
                   1883: : Char ( "<char>" -- )  bl word char+ c@ ;
                   1884: Cond: [Char]   ( "<char>" -- )  restrict? Char  lit, ;Cond
                   1885: 
1.43      pazsan   1886: \ some special literals                                        27jan97jaw
                   1887: 
1.52      jwilke   1888: \ !! Known Bug: Special Literals and plug-ins work only correct
1.93      pazsan   1889: \ on targets with char = 8 bit
1.52      jwilke   1890: 
1.43      pazsan   1891: Cond: MAXU
1.52      jwilke   1892:   restrict? 
1.93      pazsan   1893:   compile lit tcell 0 ?DO FF T c, H LOOP 
1.52      jwilke   1894:   ;Cond
1.43      pazsan   1895: 
                   1896: Cond: MINI
1.52      jwilke   1897:   restrict?
1.93      pazsan   1898:   compile lit bigendian 
                   1899:   IF   80 T c, H tcell 1 ?DO 0 T c, H LOOP 
                   1900:   ELSE  tcell 1 ?DO 0 T c, H LOOP 80 T c, H
                   1901:   THEN
1.52      jwilke   1902:   ;Cond
1.43      pazsan   1903:  
                   1904: Cond: MAXI
1.52      jwilke   1905:  restrict?
1.93      pazsan   1906:  compile lit bigendian 
                   1907:  IF    7F T c, H tcell 1 ?DO FF T c, H LOOP
                   1908:  ELSE  tcell 1 ?DO FF T c, H LOOP 7F T c, H
                   1909:  THEN
1.43      pazsan   1910:  ;Cond
                   1911: 
1.1       anton    1912: >CROSS
                   1913: \ Target compiling loop                                12dec92py
                   1914: \ ">tib trick thrown out                               10may93jaw
                   1915: \ number? defined at the top                           11may93jaw
1.77      jwilke   1916: \ replaced >in by save-input                           
                   1917: 
                   1918: : discard 0 ?DO drop LOOP ;
1.1       anton    1919: 
                   1920: \ compiled word might leave items on stack!
1.77      jwilke   1921: : tcom ( x1 .. xn n name -- )
                   1922: \  dup count type space
                   1923:   gfind  ?dup
                   1924:   IF    >r >r discard r> r>
                   1925:        0> IF   >exec @ execute
                   1926:        ELSE    gexecute  THEN 
                   1927:        EXIT 
                   1928:   THEN
                   1929:   number? dup  
                   1930:   IF   0> IF swap lit,  THEN  lit, discard
                   1931:   ELSE 2drop restore-input throw ghost gexecute THEN  ;
1.1       anton    1932: 
                   1933: >TARGET
                   1934: \ : ; DOES>                                            13dec92py
                   1935: \ ]                                                     9may93py/jaw
                   1936: 
                   1937: : ] state on
1.54      pazsan   1938:     Compiling comp-state !
1.1       anton    1939:     BEGIN
1.77      jwilke   1940:         BEGIN save-input bl word
                   1941:               dup c@ 0= WHILE drop discard refill 0=
1.1       anton    1942:               ABORT" CROSS: End of file while target compiling"
                   1943:         REPEAT
                   1944:         tcom
                   1945:         state @
                   1946:         0=
                   1947:     UNTIL ;
                   1948: 
                   1949: \ by the way: defining a second interpreter (a compiler-)loop
                   1950: \             is not allowed if a system should be ans conform
                   1951: 
                   1952: : : ( -- colon-sys ) \ Name
1.52      jwilke   1953:   defempty?
                   1954:   constflag off \ don't let this flag work over colon defs
                   1955:                \ just to go sure nothing unwanted happens
1.43      pazsan   1956:   >in @ skip? IF  drop skip-defs  EXIT  THEN  >in !
1.1       anton    1957:   (THeader ;Resolve ! there ;Resolve cell+ !
1.52      jwilke   1958:   docol, ]comp depth T ] H ;
1.1       anton    1959: 
1.37      pazsan   1960: : :noname ( -- colon-sys )
1.52      jwilke   1961:   T cfalign H there docol, 0 ;Resolve ! depth T ] H ;
1.37      pazsan   1962: 
1.2       pazsan   1963: Cond: EXIT ( -- )  restrict?  compile ;S  ;Cond
1.6       anton    1964: 
                   1965: Cond: ?EXIT ( -- ) 1 abort" CROSS: using ?exit" ;Cond
1.2       pazsan   1966: 
1.52      jwilke   1967: >CROSS
                   1968: : LastXT ;Resolve @ 0= abort" CROSS: no definition for LastXT"
                   1969:          ;Resolve cell+ @ ;
                   1970: 
                   1971: >TARGET
                   1972: 
                   1973: Cond: recurse ( -- ) Last-Ghost @ gexecute ;Cond
                   1974: 
1.1       anton    1975: Cond: ; ( -- ) restrict?
                   1976:                depth ?dup IF   1- <> ABORT" CROSS: Stack changed"
                   1977:                           ELSE true ABORT" CROSS: Stack empty" THEN
1.52      jwilke   1978:                fini,
                   1979:                comp[
                   1980:                state off
1.1       anton    1981:                ;Resolve @
1.94      pazsan   1982:               IF ;Resolve @ ;Resolve cell+ @ resolve
1.95      pazsan   1983:                  ['] colon-resolved ;Resolve @ >comp ! THEN
1.54      pazsan   1984:                Interpreting comp-state !
1.1       anton    1985:                ;Cond
1.54      pazsan   1986: Cond: [  restrict? state off Interpreting comp-state ! ;Cond
1.1       anton    1987: 
                   1988: >CROSS
1.54      pazsan   1989: 
                   1990: Create GhostDummy ghostheader
                   1991: <res> GhostDummy >magic !
                   1992: 
1.52      jwilke   1993: : !does ( does-action -- )
                   1994: \ !! zusammenziehen und dodoes, machen!
1.54      pazsan   1995:     tlastcfa @ [G'] :dovar killref
                   1996: \    tlastcfa @ dup there >r tdp ! compile :dodoes r> tdp ! T cell+ ! H ;
1.52      jwilke   1997: \ !! geht so nicht, da dodoes, ghost will!
1.54      pazsan   1998:     GhostDummy >link ! GhostDummy 
                   1999:     tlastcfa @ >tempdp dodoes, tempdp> ;
1.1       anton    2000: 
1.95      pazsan   2001: : g>body ( ghost -- body )
                   2002:     >link @ T >body H ;
                   2003: : does-resolved ( ghost -- )
                   2004:     dup g>body alit, >end @ g>body colon, ;
                   2005: 
1.1       anton    2006: >TARGET
                   2007: Cond: DOES> restrict?
1.52      jwilke   2008:         compile (does>) doeshandler, 
                   2009:        \ resolve words made by builders
1.95      pazsan   2010:        tdoes @ ?dup IF  @ dup T here H resolve
                   2011:            ['] prim-resolved swap >comp !  THEN
1.1       anton    2012:         ;Cond
1.52      jwilke   2013: : DOES> switchrom doeshandler, T here H !does depth T ] H ;
1.1       anton    2014: 
                   2015: >CROSS
                   2016: \ Creation                                             01nov92py
                   2017: 
                   2018: \ Builder                                               11may93jaw
                   2019: 
1.94      pazsan   2020: : Builder    ( Create-xt do-ghost "name" -- )
1.52      jwilke   2021: \ builds up a builder in current vocabulary
                   2022: \ create-xt is executed when word is interpreted
                   2023: \ do:-xt is executet when the created word from builder is executed
                   2024: \ for do:-xt an additional entry after the normal ghost-enrys is used
                   2025: 
1.94      pazsan   2026:   Make-Ghost           ( Create-xt do-ghost ghost )
                   2027:   rot swap             ( do-ghost Create-xt ghost )
1.78      jwilke   2028:   >exec ! , ;
1.1       anton    2029: 
1.52      jwilke   2030: : gdoes,  ( ghost -- )
                   2031: \ makes the codefield for a word that is built
1.75      jwilke   2032:   >end @ dup undefined? 0=
1.52      jwilke   2033:   IF
1.42      pazsan   2034:        dup >magic @ <do:> =
1.54      pazsan   2035:        IF       doer, 
                   2036:        ELSE    dodoes,
                   2037:        THEN
                   2038:        EXIT
1.52      jwilke   2039:   THEN
                   2040: \  compile :dodoes gexecute
                   2041: \  T here H tcell - reloff 
1.54      pazsan   2042:   2 refered 
                   2043:   0 fillcfa
                   2044:   ;
1.1       anton    2045: 
1.52      jwilke   2046: : TCreate ( <name> -- )
                   2047:   executed-ghost @
                   2048:   create-forward-warn
                   2049:   IF ['] reswarn-forward IS resolve-warning THEN
1.96      pazsan   2050:   Theader >r dup , dup gdoes,
1.77      jwilke   2051: \ stores execution semantic in the built word
1.78      jwilke   2052: \ if the word already has a semantic (concerns S", IS, .", DOES>)
                   2053: \ then keep it
1.93      pazsan   2054:   >end @
                   2055:   dup >exec @ r@ >exec dup @ ['] NoExec =  IF ! ELSE 2drop THEN
                   2056:   >comp @ r> >comp ! ;
1.52      jwilke   2057: 
                   2058: : RTCreate ( <name> -- )
                   2059: \ creates a new word with code-field in ram
                   2060:   executed-ghost @
                   2061:   create-forward-warn
                   2062:   IF ['] reswarn-forward IS resolve-warning THEN
                   2063:   \ make Alias
1.89      anton    2064:   (THeader there 0 T a, H alias-mask flag! ( S executed-ghost new-ghost )
1.52      jwilke   2065:   \ store  poiter to code-field
                   2066:   switchram T cfalign H
                   2067:   there swap T ! H
                   2068:   there tlastcfa ! 
                   2069:   dup there resolve 0 ;Resolve !
                   2070:   >r dup gdoes,
1.78      jwilke   2071: \ stores execution semantic in the built word
                   2072: \ if the word already has a semantic (concerns S", IS, .", DOES>)
                   2073: \ then keep it
                   2074:   >end @ >exec @ r> >exec dup @ ['] NoExec =
                   2075:   IF ! ELSE 2drop THEN ;
1.1       anton    2076: 
                   2077: : Build:  ( -- [xt] [colon-sys] )
1.52      jwilke   2078:   :noname postpone TCreate ;
                   2079: 
                   2080: : BuildSmart:  ( -- [xt] [colon-sys] )
                   2081:   :noname
1.53      jwilke   2082:   [ T has? rom H [IF] ]
1.52      jwilke   2083:   postpone RTCreate
                   2084:   [ [ELSE] ]
                   2085:   postpone TCreate 
                   2086:   [ [THEN] ] ;
1.1       anton    2087: 
                   2088: : gdoes>  ( ghost -- addr flag )
1.52      jwilke   2089:   executed-ghost @
1.1       anton    2090:   state @ IF  gexecute true EXIT  THEN
1.93      pazsan   2091:   g>body false ;
1.1       anton    2092: 
                   2093: \ DO: ;DO                                               11may93jaw
                   2094: \ changed to ?EXIT                                      10may93jaw
                   2095: 
1.93      pazsan   2096: : DO:     ( -- ghost [xt] [colon-sys] )
1.1       anton    2097:   here ghostheader
1.11      pazsan   2098:   :noname postpone gdoes> postpone ?EXIT ;
1.1       anton    2099: 
1.93      pazsan   2100: : by:     ( -- ghost [xt] [colon-sys] ) \ name
1.42      pazsan   2101:   ghost
                   2102:   :noname postpone gdoes> postpone ?EXIT ;
                   2103: 
1.93      pazsan   2104: : ;DO ( ghost [xt] [colon-sys] -- ghost )
1.1       anton    2105:   postpone ;    ( S addr xt )
                   2106:   over >exec ! ; immediate
                   2107: 
1.96      pazsan   2108: T has? peephole H [IF]
1.93      pazsan   2109: : compile: ( ghost -- ghost [xt] [colon-sys] )
                   2110:     :noname  postpone g>body ;
                   2111: : ;compile ( ghost [xt] [colon-sys] -- ghost )
1.94      pazsan   2112:     postpone ;  over >comp ! ; immediate
1.96      pazsan   2113: [ELSE]
                   2114: : compile:  ( ghost -- ghost xt colon-sys )  :noname ;
                   2115: : ;compile ( ghost xt colon-sys -- ghost )
                   2116:     postpone ; drop ; immediate
                   2117: [THEN]
1.93      pazsan   2118: 
                   2119: : by      ( -- ghost ) \ Name
1.1       anton    2120:   ghost >end @ ;
                   2121: 
                   2122: >TARGET
                   2123: \ Variables and Constants                              05dec92py
                   2124: 
1.52      jwilke   2125: Build:  ( n -- ) ;
                   2126: by: :docon ( ghost -- n ) T @ H ;DO
1.94      pazsan   2127: compile: alit, compile @ ;compile
1.52      jwilke   2128: Builder (Constant)
                   2129: 
                   2130: Build:  ( n -- ) T , H ;
                   2131: by (Constant)
                   2132: Builder Constant
                   2133: 
                   2134: Build:  ( n -- ) T A, H ;
                   2135: by (Constant)
                   2136: Builder AConstant
                   2137: 
                   2138: Build:  ( d -- ) T , , H ;
                   2139: DO: ( ghost -- d ) T dup cell+ @ swap @ H ;DO
                   2140: Builder 2Constant
                   2141: 
                   2142: BuildSmart: ;
1.42      pazsan   2143: by: :dovar ( ghost -- addr ) ;DO
1.95      pazsan   2144: \ compile: alit, ;compile
1.1       anton    2145: Builder Create
                   2146: 
1.53      jwilke   2147: T has? rom H [IF]
1.54      pazsan   2148: Build: ( -- ) T here 0 , H switchram T align here swap ! 0 , H ( switchrom ) ;
1.52      jwilke   2149: by (Constant)
                   2150: Builder Variable
                   2151: [ELSE]
1.1       anton    2152: Build: T 0 , H ;
                   2153: by Create
1.96      pazsan   2154: \ compile: alit, ;compile
1.1       anton    2155: Builder Variable
1.52      jwilke   2156: [THEN]
1.1       anton    2157: 
1.53      jwilke   2158: T has? rom H [IF]
1.54      pazsan   2159: Build: ( -- ) T here 0 , H switchram T align here swap ! 0 , 0 , H ( switchrom ) ;
                   2160: by (Constant)
                   2161: Builder 2Variable
                   2162: [ELSE]
                   2163: Build: T 0 , 0 , H ;
                   2164: by Create
1.96      pazsan   2165: \ compile: alit, ;compile
1.54      pazsan   2166: Builder 2Variable
                   2167: [THEN]
                   2168: 
                   2169: T has? rom H [IF]
                   2170: Build: ( -- ) T here 0 , H switchram T align here swap ! 0 , H ( switchrom ) ;
1.52      jwilke   2171: by (Constant)
                   2172: Builder AVariable
                   2173: [ELSE]
1.1       anton    2174: Build: T 0 A, H ;
                   2175: by Create
1.96      pazsan   2176: \ compile: alit, ;compile
1.1       anton    2177: Builder AVariable
1.52      jwilke   2178: [THEN]
1.1       anton    2179: 
1.3       pazsan   2180: \ User variables                                       04may94py
                   2181: 
                   2182: >CROSS
1.78      jwilke   2183: 
1.3       pazsan   2184: Variable tup  0 tup !
                   2185: Variable tudp 0 tudp !
1.78      jwilke   2186: 
1.3       pazsan   2187: : u,  ( n -- udp )
                   2188:   tup @ tudp @ + T  ! H
1.19      pazsan   2189:   tudp @ dup T cell+ H tudp ! ;
1.78      jwilke   2190: 
1.3       pazsan   2191: : au, ( n -- udp )
                   2192:   tup @ tudp @ + T A! H
1.19      pazsan   2193:   tudp @ dup T cell+ H tudp ! ;
1.78      jwilke   2194: 
1.3       pazsan   2195: >TARGET
                   2196: 
1.78      jwilke   2197: Build: 0 u, X , ;
                   2198: by: :douser ( ghost -- up-addr )  X @ tup @ + ;DO
1.94      pazsan   2199: compile: compile useraddr T @ , H ;compile
1.1       anton    2200: Builder User
                   2201: 
1.78      jwilke   2202: Build: 0 u, X , 0 u, drop ;
1.3       pazsan   2203: by User
1.1       anton    2204: Builder 2User
                   2205: 
1.78      jwilke   2206: Build: 0 au, X , ;
1.3       pazsan   2207: by User
1.1       anton    2208: Builder AUser
                   2209: 
1.52      jwilke   2210: BuildSmart: T , H ;
1.44      pazsan   2211: by (Constant)
1.1       anton    2212: Builder Value
                   2213: 
1.52      jwilke   2214: BuildSmart: T A, H ;
1.44      pazsan   2215: by (Constant)
1.32      pazsan   2216: Builder AValue
                   2217: 
1.52      jwilke   2218: BuildSmart:  ( -- ) [T'] noop T A, H ;
1.42      pazsan   2219: by: :dodefer ( ghost -- ) ABORT" CROSS: Don't execute" ;DO
1.94      pazsan   2220: compile: alit, compile @ compile execute ;compile
1.1       anton    2221: Builder Defer
1.37      pazsan   2222: 
1.78      jwilke   2223: Build: ( inter comp -- ) swap T immediate A, A, H ;
1.37      pazsan   2224: DO: ( ghost -- ) ABORT" CROSS: Don't execute" ;DO
1.38      anton    2225: Builder interpret/compile:
1.24      pazsan   2226: 
                   2227: \ Sturctures                                           23feb95py
                   2228: 
                   2229: >CROSS
                   2230: : nalign ( addr1 n -- addr2 )
                   2231: \ addr2 is the aligned version of addr1 wrt the alignment size n
                   2232:  1- tuck +  swap invert and ;
                   2233: >TARGET
                   2234: 
1.44      pazsan   2235: Build: ;
                   2236: by: :dofield T @ H + ;DO
1.94      pazsan   2237: compile: T @ H lit, compile + ;compile
1.44      pazsan   2238: Builder (Field)
                   2239: 
1.51      anton    2240: Build: ( align1 offset1 align size "name" --  align2 offset2 )
                   2241:     rot dup T , H ( align1 align size offset1 )
                   2242:     + >r nalign r> ;
1.44      pazsan   2243: by (Field)
1.24      pazsan   2244: Builder Field
                   2245: 
1.51      anton    2246: : struct  T 1 chars 0 H ;
1.24      pazsan   2247: : end-struct  T 2Constant H ;
                   2248: 
1.52      jwilke   2249: : cell% ( n -- size align )
1.51      anton    2250:     T 1 cells H dup ;
1.88      pazsan   2251: 
1.91      pazsan   2252: Build: ( m v -- m' v )  dup T , cell+ H ;
1.88      pazsan   2253: DO:  abort" Not in cross mode" ;DO
                   2254: Builder input-method
                   2255: 
                   2256: Build: ( m v size -- m v' )  over T , H + ;
                   2257: DO:  abort" Not in cross mode" ;DO
                   2258: Builder input-var
1.24      pazsan   2259: 
1.52      jwilke   2260: \ structural conditionals                              17dec92py
                   2261: 
                   2262: >CROSS
                   2263: : ?struc      ( flag -- )       ABORT" CROSS: unstructured " ;
                   2264: : sys?        ( sys -- sys )    dup 0= ?struc ;
                   2265: : >mark       ( -- sys )        T here  ( dup ." M" hex. ) 0 , H ;
                   2266: 
1.78      jwilke   2267: : branchoffset ( src dest -- )  - tchar / ; \ ?? jaw
1.52      jwilke   2268: 
1.78      jwilke   2269: : >resolve    ( sys -- )        
                   2270:        X here ( dup ." >" hex. ) over branchoffset swap X ! ;
1.52      jwilke   2271: 
1.78      jwilke   2272: : <resolve    ( sys -- )
                   2273:        X here ( dup ." <" hex. ) branchoffset X , ;
1.52      jwilke   2274: 
1.78      jwilke   2275: :noname compile branch X here branchoffset X , ;
1.54      pazsan   2276:   IS branch, ( target-addr -- )
1.78      jwilke   2277: :noname compile ?branch X here branchoffset X , ;
1.54      pazsan   2278:   IS ?branch, ( target-addr -- )
                   2279: :noname compile branch T here 0 , H ;
                   2280:   IS branchmark, ( -- branchtoken )
                   2281: :noname compile ?branch T here 0 , H ;
                   2282:   IS ?branchmark, ( -- branchtoken )
                   2283: :noname T here 0 , H ;
                   2284:   IS ?domark, ( -- branchtoken )
1.78      jwilke   2285: :noname dup X @ ?struc X here over branchoffset swap X ! ;
1.54      pazsan   2286:   IS branchtoresolve, ( branchtoken -- )
1.78      jwilke   2287: :noname branchto, X here ;
1.54      pazsan   2288:   IS branchtomark, ( -- target-addr )
1.52      jwilke   2289: 
                   2290: >TARGET
                   2291: 
                   2292: \ Structural Conditionals                              12dec92py
                   2293: 
                   2294: Cond: BUT       restrict? sys? swap ;Cond
                   2295: Cond: YET       restrict? sys? dup ;Cond
                   2296: 
                   2297: >CROSS
                   2298: 
1.78      jwilke   2299: Variable tleavings 0 tleavings !
1.52      jwilke   2300: 
1.54      pazsan   2301: : (done) ( addr -- )
                   2302:     tleavings @
                   2303:     BEGIN  dup
                   2304:     WHILE
                   2305:        >r dup r@ cell+ @ \ address of branch
                   2306:        u> 0=      \ lower than DO?     
                   2307:     WHILE
                   2308:        r@ 2 cells + @ \ branch token
                   2309:        branchtoresolve,
                   2310:        r@ @ r> free throw
                   2311:     REPEAT  r>  THEN
                   2312:     tleavings ! drop ;
                   2313: 
1.53      jwilke   2314: >TARGET
                   2315: 
1.54      pazsan   2316: Cond: DONE   ( addr -- )  restrict? (done) ;Cond
1.53      jwilke   2317: 
                   2318: >CROSS
1.54      pazsan   2319: : (leave) ( branchtoken -- )
1.53      jwilke   2320:     3 cells allocate throw >r
                   2321:     T here H r@ cell+ !
                   2322:     r@ 2 cells + !
                   2323:     tleavings @ r@ !
                   2324:     r> tleavings ! ;
                   2325: >TARGET
                   2326: 
1.54      pazsan   2327: Cond: LEAVE     restrict? branchmark, (leave) ;Cond
                   2328: Cond: ?LEAVE    restrict? compile 0=  ?branchmark, (leave)  ;Cond
1.53      jwilke   2329: 
1.54      pazsan   2330: >CROSS
                   2331: \ !!JW ToDo : Move to general tools section
                   2332: 
                   2333: : to1 ( x1 x2 xn n -- addr )
                   2334: \G packs n stack elements in a allocated memory region
                   2335:    dup dup 1+ cells allocate throw dup >r swap 1+
                   2336:    0 DO tuck ! cell+ LOOP
                   2337:    drop r> ;
                   2338: : 1to ( addr -- x1 x2 xn )
                   2339: \G unpacks the elements saved by to1
                   2340:     dup @ swap over cells + swap
                   2341:     0 DO  dup @ swap 1 cells -  LOOP
                   2342:     free throw ;
                   2343: 
                   2344: : loop]     branchto, dup <resolve tcell - (done) ;
                   2345: 
                   2346: : skiploop] ?dup IF branchto, branchtoresolve, THEN ;
                   2347: 
                   2348: >TARGET
                   2349: 
1.52      jwilke   2350: \ Structural Conditionals                              12dec92py
                   2351: 
1.53      jwilke   2352: >TARGET
1.52      jwilke   2353: Cond: AHEAD     restrict? branchmark, ;Cond
                   2354: Cond: IF        restrict? ?branchmark, ;Cond
                   2355: Cond: THEN      restrict? sys? branchto, branchtoresolve, ;Cond
                   2356: Cond: ELSE      restrict? sys? compile AHEAD swap compile THEN ;Cond
                   2357: 
                   2358: Cond: BEGIN     restrict? branchtomark, ;Cond
                   2359: Cond: WHILE     restrict? sys? compile IF swap ;Cond
                   2360: Cond: AGAIN     restrict? sys? branch, ;Cond
                   2361: Cond: UNTIL     restrict? sys? ?branch, ;Cond
                   2362: Cond: REPEAT    restrict? over 0= ?struc compile AGAIN compile THEN ;Cond
                   2363: 
                   2364: Cond: CASE      restrict? 0 ;Cond
                   2365: Cond: OF        restrict? 1+ >r compile over compile =
                   2366:                 compile IF compile drop r> ;Cond
1.45      pazsan   2367: Cond: ENDOF     restrict? >r compile ELSE r> ;Cond
                   2368: Cond: ENDCASE   restrict? compile drop 0 ?DO  compile THEN  LOOP ;Cond
1.1       anton    2369: 
                   2370: \ Structural Conditionals                              12dec92py
                   2371: 
1.67      jwilke   2372: :noname \ ?? i think 0 is too much! jaw
1.54      pazsan   2373:     0 compile (do)
                   2374:     branchtomark,  2 to1 ;
                   2375:   IS do, ( -- target-addr )
                   2376: 
                   2377: \ :noname
                   2378: \     compile 2dup compile = compile IF
                   2379: \     compile 2drop compile ELSE
                   2380: \     compile (do) branchtomark, 2 to1 ;
                   2381: \   IS ?do,
                   2382:     
                   2383: :noname
                   2384:     0 compile (?do)  ?domark, (leave)
                   2385:     branchtomark,  2 to1 ;
                   2386:   IS ?do, ( -- target-addr )
                   2387: :noname compile (for) branchtomark, ;
                   2388:   IS for, ( -- target-addr )
                   2389: :noname 1to compile (loop)  loop] compile unloop skiploop] ;
                   2390:   IS loop, ( target-addr -- )
                   2391: :noname 1to compile (+loop)  loop] compile unloop skiploop] ;
                   2392:   IS +loop, ( target-addr -- )
                   2393: :noname compile (next)  loop] compile unloop ;
                   2394:   IS next, ( target-addr -- )
                   2395: 
                   2396: Cond: DO       restrict? do, ;Cond
                   2397: Cond: ?DO      restrict? ?do, ;Cond
                   2398: Cond: FOR      restrict? for, ;Cond
                   2399: 
                   2400: Cond: LOOP     restrict? sys? loop, ;Cond
                   2401: Cond: +LOOP    restrict? sys? +loop, ;Cond
                   2402: Cond: NEXT     restrict? sys? next, ;Cond
1.52      jwilke   2403: 
1.1       anton    2404: \ String words                                         23feb93py
                   2405: 
1.52      jwilke   2406: : ,"            [char] " parse T string, align H ;
1.1       anton    2407: 
1.97    ! pazsan   2408: Cond: ."        restrict? compile (.")     T ," H ;Cond
        !          2409: Cond: S"        restrict? compile (S")     T ," H ;Cond
        !          2410: Cond: ABORT"    restrict? compile (ABORT") T ," H ;Cond
1.1       anton    2411: 
                   2412: Cond: IS        T ' >body H compile ALiteral compile ! ;Cond
1.66      pazsan   2413: : IS            T >address ' >body ! H ;
1.9       pazsan   2414: Cond: TO        T ' >body H compile ALiteral compile ! ;Cond
                   2415: : TO            T ' >body ! H ;
1.1       anton    2416: 
1.52      jwilke   2417: Cond: defers   T ' >body @ compile, H ;Cond
                   2418: : on           T -1 swap ! H ; 
                   2419: : off          T 0 swap ! H ;
                   2420: 
1.1       anton    2421: \ LINKED ERR" ENV" 2ENV"                                18may93jaw
                   2422: 
                   2423: \ linked list primitive
1.79      jwilke   2424: : linked        X here over X @ X A, swap X ! ;
1.52      jwilke   2425: : chained      T linked A, H ;
1.1       anton    2426: 
                   2427: : err"   s" ErrLink linked" evaluate T , H
1.52      jwilke   2428:          [char] " parse T string, align H ;
1.1       anton    2429: 
                   2430: : env"  [char] " parse s" EnvLink linked" evaluate
1.52      jwilke   2431:         T string, align , H ;
1.1       anton    2432: 
                   2433: : 2env" [char] " parse s" EnvLink linked" evaluate
1.52      jwilke   2434:         here >r T string, align , , H
1.1       anton    2435:         r> dup T c@ H 80 and swap T c! H ;
                   2436: 
                   2437: \ compile must be last                                 22feb93py
                   2438: 
                   2439: Cond: compile ( -- ) restrict? \ name
1.13      pazsan   2440:       bl word gfind dup 0= ABORT" CROSS: Can't compile"
1.1       anton    2441:       0> IF    gexecute
                   2442:          ELSE  dup >magic @ <imm> =
                   2443:                IF   gexecute
1.54      pazsan   2444:                ELSE compile (compile) addr, THEN THEN ;Cond
1.1       anton    2445: 
                   2446: Cond: postpone ( -- ) restrict? \ name
1.13      pazsan   2447:       bl word gfind dup 0= ABORT" CROSS: Can't compile"
1.1       anton    2448:       0> IF    gexecute
                   2449:          ELSE  dup >magic @ <imm> =
                   2450:                IF   gexecute
1.54      pazsan   2451:               ELSE compile (compile) addr, THEN THEN ;Cond
                   2452:           
1.77      jwilke   2453: \ save-cross                                           17mar93py
                   2454: 
                   2455: hex
                   2456: 
                   2457: >CROSS
                   2458: Create magic  s" Gforth2x" here over allot swap move
                   2459: 
                   2460: bigendian 1+ \ strangely, in magic big=0, little=1
                   2461: tcell 1 = 0 and or
                   2462: tcell 2 = 2 and or
                   2463: tcell 4 = 4 and or
                   2464: tcell 8 = 6 and or
                   2465: tchar 1 = 00 and or
                   2466: tchar 2 = 28 and or
                   2467: tchar 4 = 50 and or
                   2468: tchar 8 = 78 and or
                   2469: magic 7 + c!
                   2470: 
                   2471: : save-cross ( "image-name" "binary-name" -- )
                   2472:   bl parse ." Saving to " 2dup type cr
                   2473:   w/o bin create-file throw >r
                   2474:   TNIL IF
1.80      anton    2475:       s" #! "           r@ write-file throw
                   2476:       bl parse          r@ write-file throw
                   2477:       s"  --image-file" r@ write-file throw
1.77      jwilke   2478:       #lf       r@ emit-file throw
                   2479:       r@ dup file-position throw drop 8 mod 8 swap ( file-id limit index )
                   2480:       ?do
                   2481:          bl over emit-file throw
                   2482:       loop
                   2483:       drop
                   2484:       magic 8       r@ write-file throw \ write magic
                   2485:   ELSE
                   2486:       bl parse 2drop
                   2487:   THEN
                   2488:   image @ there 
                   2489:   r@ write-file throw \ write image
                   2490:   TNIL IF
                   2491:       bit$  @ there 1- tcell>bit rshift 1+
                   2492:                 r@ write-file throw \ write tags
                   2493:   THEN
                   2494:   r> close-file throw ;
                   2495: 
                   2496: : save-region ( addr len -- )
                   2497:   bl parse w/o bin create-file throw >r
                   2498:   swap >image swap r@ write-file throw
                   2499:   r> close-file throw ;
                   2500: 
1.54      pazsan   2501: \ \ minimal definitions
                   2502:           
1.77      jwilke   2503: >MINIMAL also minimal
                   2504: 
1.1       anton    2505: \ Usefull words                                        13feb93py
                   2506: 
                   2507: : KB  400 * ;
                   2508: 
1.54      pazsan   2509: \ \ [IF] [ELSE] [THEN] ...                             14sep97jaw
                   2510: 
                   2511: \ it is useful to define our own structures and not to rely
                   2512: \ on the words in the compiler
                   2513: \ The words in the compiler might be defined with vocabularies
                   2514: \ this doesn't work with our self-made compile-loop
                   2515: 
                   2516: Create parsed 20 chars allot   \ store word we parsed
                   2517: 
                   2518: : upcase
                   2519:     parsed count bounds
                   2520:     ?DO I c@ toupper I c! LOOP ;
                   2521: 
                   2522: : [ELSE]
                   2523:     1 BEGIN
                   2524:        BEGIN bl word count dup WHILE
1.77      jwilke   2525:            comment? 20 umin parsed place upcase parsed count
1.54      pazsan   2526:            2dup s" [IF]" compare 0= >r 
                   2527:            2dup s" [IFUNDEF]" compare 0= >r
                   2528:            2dup s" [IFDEF]" compare 0= r> or r> or
                   2529:            IF   2drop 1+
                   2530:            ELSE 2dup s" [ELSE]" compare 0=
                   2531:                IF   2drop 1- dup
                   2532:                    IF 1+
                   2533:                    THEN
                   2534:                ELSE
                   2535:                    2dup s" [ENDIF]" compare 0= >r
                   2536:                    s" [THEN]" compare 0= r> or
                   2537:                    IF 1- THEN
                   2538:                THEN
                   2539:            THEN
                   2540:            ?dup 0= ?EXIT
                   2541:        REPEAT
                   2542:        2drop refill 0=
                   2543:     UNTIL drop ; immediate
                   2544:   
                   2545: : [THEN] ( -- ) ; immediate
                   2546: 
                   2547: : [ENDIF] ( -- ) ; immediate
                   2548: 
                   2549: : [IF] ( flag -- )
                   2550:     0= IF postpone [ELSE] THEN ; immediate 
                   2551: 
                   2552: Cond: [IF]      postpone [IF] ;Cond
                   2553: Cond: [THEN]    postpone [THEN] ;Cond
                   2554: Cond: [ELSE]    postpone [ELSE] ;Cond
                   2555: 
1.1       anton    2556: \ define new [IFDEF] and [IFUNDEF]                      20may93jaw
                   2557: 
1.77      jwilke   2558: : defined? tdefined? ;
1.44      pazsan   2559: : needed? needed? ;
                   2560: : doer? doer? ;
1.1       anton    2561: 
1.52      jwilke   2562: \ we want to use IFDEF on compiler directives (e.g. E?) in the source, too
                   2563: 
                   2564: : directive? 
1.77      jwilke   2565:   bl word count [ ' target >wordlist ] literal search-wordlist 
1.52      jwilke   2566:   dup IF nip THEN ;
                   2567: 
                   2568: : [IFDEF]  >in @ directive? swap >in !
1.77      jwilke   2569:           0= IF tdefined? ELSE name 2drop true THEN
1.52      jwilke   2570:           postpone [IF] ;
                   2571: 
1.77      jwilke   2572: : [IFUNDEF] tdefined? 0= postpone [IF] ;
1.1       anton    2573: 
1.54      pazsan   2574: Cond: [IFDEF]   postpone [IFDEF] ;Cond
                   2575: 
                   2576: Cond: [IFUNDEF] postpone [IFUNDEF] ;Cond
                   2577: 
1.1       anton    2578: \ C: \- \+ Conditional Compiling                         09jun93jaw
                   2579: 
1.77      jwilke   2580: : C: >in @ tdefined? 0=
                   2581:      IF    >in ! X :
1.1       anton    2582:      ELSE drop
                   2583:         BEGIN bl word dup c@
                   2584:               IF   count comment? s" ;" compare 0= ?EXIT
                   2585:               ELSE refill 0= ABORT" CROSS: Out of Input while C:"
                   2586:               THEN
                   2587:         AGAIN
                   2588:      THEN ;
                   2589: 
1.74      jwilke   2590: : d? d? ;
                   2591: 
                   2592: \G doesn't skip line when debug switch is on
                   2593: : \D D? 0= IF postpone \ THEN ;
1.52      jwilke   2594: 
1.48      anton    2595: \G interprets the line if word is not defined
1.77      jwilke   2596: : \- tdefined? IF postpone \ THEN ;
1.48      anton    2597: 
                   2598: \G interprets the line if word is defined
1.77      jwilke   2599: : \+ tdefined? 0= IF postpone \ THEN ;
1.1       anton    2600: 
1.48      anton    2601: Cond: \- \- ;Cond
                   2602: Cond: \+ \+ ;Cond
1.52      jwilke   2603: Cond: \D \D ;Cond
1.48      anton    2604: 
                   2605: : ?? bl word find IF execute ELSE drop 0 THEN ;
                   2606: 
                   2607: : needed:
                   2608: \G defines ghost for words that we want to be compiled
                   2609:   BEGIN >in @ bl word c@ WHILE >in ! ghost drop REPEAT drop ;
                   2610: 
1.1       anton    2611: \ words that should be in minimal
1.52      jwilke   2612: 
                   2613: create s-buffer 50 chars allot
                   2614: 
1.77      jwilke   2615: bigendian Constant bigendian
1.1       anton    2616: 
1.52      jwilke   2617: : here there ;
1.67      jwilke   2618: : equ constant ;
                   2619: : mark there constant ;
1.54      pazsan   2620: 
                   2621: \ compiler directives
1.52      jwilke   2622: : >ram >ram ;
                   2623: : >rom >rom ;
                   2624: : >auto >auto ;
                   2625: : >tempdp >tempdp ;
                   2626: : tempdp> tempdp> ;
                   2627: : const constflag on ;
                   2628: : warnings name 3 = 0= twarnings ! drop ;
1.60      anton    2629: : | ;
                   2630: \ : | NoHeaderFlag on ; \ This is broken (damages the last word)
1.52      jwilke   2631: 
1.48      anton    2632: : save-cross save-cross ;
1.52      jwilke   2633: : save-region save-region ;
                   2634: : tdump swap >image swap dump ;
                   2635: 
1.48      anton    2636: also forth 
1.52      jwilke   2637: [IFDEF] Label           : Label defempty? Label ; [THEN] 
                   2638: [IFDEF] start-macros    : start-macros defempty? start-macros ; [THEN]
1.77      jwilke   2639: \ [IFDEF] builttag     : builttag builttag ;   [THEN]
1.48      anton    2640: previous
                   2641: 
1.52      jwilke   2642: : s" [char] " parse s-buffer place s-buffer count ; \ for environment?
1.43      pazsan   2643: : + + ;
1.52      jwilke   2644: : 1+ 1 + ;
                   2645: : 2+ 2 + ;
1.43      pazsan   2646: : 1- 1- ;
                   2647: : - - ;
1.52      jwilke   2648: : and and ;
                   2649: : or or ;
1.43      pazsan   2650: : 2* 2* ;
                   2651: : * * ;
                   2652: : / / ;
                   2653: : dup dup ;
                   2654: : over over ;
                   2655: : swap swap ;
                   2656: : rot rot ;
                   2657: : drop drop ;
                   2658: : =   = ;
                   2659: : 0=   0= ;
                   2660: : lshift lshift ;
                   2661: : 2/ 2/ ;
1.19      pazsan   2662: : . . ;
1.1       anton    2663: 
1.79      jwilke   2664: : all-words    ['] forced?    IS skip? ;
1.43      pazsan   2665: : needed-words ['] needed?  IS skip? ;
1.75      jwilke   2666: : undef-words  ['] defined2? IS skip? ;
                   2667: : skipdef skipdef ;
1.1       anton    2668: 
1.40      pazsan   2669: : \  postpone \ ;  immediate
1.47      pazsan   2670: : \G T-\G ; immediate
1.40      pazsan   2671: : (  postpone ( ;  immediate
1.1       anton    2672: : include bl word count included ;
1.52      jwilke   2673: : require require ;
1.1       anton    2674: : .( [char] ) parse type ;
1.52      jwilke   2675: : ." [char] " parse type ;
1.1       anton    2676: : cr cr ;
                   2677: 
1.77      jwilke   2678: : times 0 ?DO dup X c, LOOP drop ; \ used for space table creation
                   2679: 
                   2680: \ only forth also cross also minimal definitions order
1.1       anton    2681: 
                   2682: \ cross-compiler words
                   2683: 
                   2684: : decimal       decimal ;
                   2685: : hex           hex ;
                   2686: 
1.77      jwilke   2687: \ : tudp          X tudp ;
                   2688: \ : tup           X tup ;
                   2689: 
                   2690: : doc-off       false to-doc ! ;
                   2691: : doc-on        true  to-doc ! ;
1.39      pazsan   2692: 
1.52      jwilke   2693: [IFDEF] dbg : dbg dbg ; [THEN]
1.39      pazsan   2694: 
1.1       anton    2695: \ for debugging...
                   2696: : order         order ;
1.52      jwilke   2697: : hwords         words ;
                   2698: : words        also ghosts words previous ;
1.1       anton    2699: : .s            .s ;
                   2700: : bye           bye ;
                   2701: 
                   2702: \ turnkey direction
                   2703: : H forth ; immediate
                   2704: : T minimal ; immediate
                   2705: : G ghosts ; immediate
                   2706: 
1.77      jwilke   2707: : turnkey 
1.78      jwilke   2708:    \GFORTH 0 set-order also ghosts
                   2709:    \ANSI [ ' ghosts >wordlist ] Literal 1 set-order
                   2710:    also target definitions
1.77      jwilke   2711:    also Minimal also ;
1.1       anton    2712: 
                   2713: \ these ones are pefered:
                   2714: 
                   2715: : lock   turnkey ;
1.74      jwilke   2716: : unlock previous forth also cross ;
1.52      jwilke   2717: 
1.77      jwilke   2718: \ also minimal
1.52      jwilke   2719: : [[ also unlock ;
1.78      jwilke   2720: : ]] previous previous also also ;
1.1       anton    2721: 
                   2722: unlock definitions also minimal
                   2723: : lock   lock ;
                   2724: lock
1.77      jwilke   2725: 
                   2726: \ load cross compiler extension defined in mach file
                   2727: 
                   2728: UNLOCK >CROSS
                   2729: 
                   2730: [IFDEF] extend-cross extend-cross [THEN]
                   2731: 
                   2732: LOCK

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