Annotation of gforth/cross.fs, revision 1.104

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: 
1.103     jwilke    631: \ Ghost Builder                                        06oct92py
                    632: 
                    633: hex
                    634: 4711 Constant <fwd>             4712 Constant <res>
                    635: 4713 Constant <imm>             4714 Constant <do:>
                    636: 4715 Constant <skip>
                    637: 
                    638: 1 Constant <unique>
                    639: 
                    640: Struct
1.52      jwilke    641: 
1.103     jwilke    642:   \ link to next ghost (always the first element)
                    643:   cell% field >next-ghost
1.52      jwilke    644: 
1.103     jwilke    645:   \ type of ghost
                    646:   cell% field >magic
                    647:                
                    648:   \ pointer where ghost is in target, or if unresolved
                    649:   \ points to the where we have to resolve (linked-list)
                    650:   cell% field >link
1.52      jwilke    651: 
1.103     jwilke    652:   \ execution symantics (while target compiling) of ghost
                    653:   cell% field >exec
1.52      jwilke    654: 
1.103     jwilke    655:   cell% field >exec-compile
1.52      jwilke    656: 
1.103     jwilke    657:   cell% field >exec2
1.52      jwilke    658: 
1.103     jwilke    659:   cell% field >created
1.52      jwilke    660: 
1.103     jwilke    661:   \ the xt of the created ghost word itself
                    662:   cell% field >ghost-xt
1.52      jwilke    663: 
1.103     jwilke    664:   \ pointer to the counted string of the assiciated
                    665:   \ assembler label
                    666:   cell% field >asm-name
1.52      jwilke    667: 
1.103     jwilke    668:   \ mapped primitives have a special address, so
                    669:   \ we are able to detect them
                    670:   cell% field >asm-dummyaddr
                    671:                        
                    672:   \ for builder (create, variable...) words
                    673:   \ the execution symantics of words built are placed here
                    674:   \ this is a doer ghost or a dummy ghost
                    675:   cell% field >do:ghost
1.93      pazsan    676: 
1.103     jwilke    677:   cell% field >ghost-flags
1.93      pazsan    678: 
1.103     jwilke    679:   cell% field >ghost-name
1.52      jwilke    680: 
1.103     jwilke    681: End-Struct ghost-struct
1.52      jwilke    682: 
1.103     jwilke    683: Variable ghost-list
                    684: 0 ghost-list !
1.52      jwilke    685: 
                    686: Variable executed-ghost \ last executed ghost, needed in tcreate and gdoes>
1.103     jwilke    687: \ Variable last-ghost  \ last ghost that is created
1.52      jwilke    688: Variable last-header-ghost \ last ghost definitions with header
                    689: 
1.103     jwilke    690: \ space for ghosts resolve structure
                    691: \ we create ghosts in a sepearte space
                    692: \ and not to the current host dp, because this
                    693: \ gives trouble with instant while compiling and creating
                    694: \ a ghost for a forward reference
                    695: \ BTW: we cannot allocate another memory region
                    696: \ because allot will check the overflow!!
                    697: Variable cross-space-dp
                    698: Create cross-space 250000 allot here 100 allot align 
                    699: Constant cross-space-end
                    700: cross-space cross-space-dp !
                    701: Variable cross-space-dp-orig
                    702: 
                    703: : cross-space-used cross-space-dp @ cross-space - ;
                    704: 
                    705: : >space ( -- )
                    706:   dp @ cross-space-dp-orig !
                    707:   cross-space-dp @ dp ! ;
                    708: 
                    709: : space> ( -- )
                    710:   dp @ dup cross-space-dp !
                    711:   cross-space-end u> ABORT" CROSS: cross-space overflow"
                    712:   cross-space-dp-orig @ dp ! ;
                    713: 
                    714: : execute-exec execute ;
                    715: : execute-exec2 execute ;
                    716: : execute-exec-compile execute ;
                    717: 
                    718: : NoExec
                    719:   executed-ghost @ >exec2 @
                    720:   ?dup 
                    721:   IF   execute-exec2
                    722:   ELSE true ABORT" CROSS: Don't execute ghost, or immediate target word"
                    723:   THEN ;
                    724: 
                    725: : (ghostheader) ( -- )
                    726:   ghost-list linked <fwd> , 0 , ['] NoExec , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , ;
                    727: 
                    728: : ghostheader ( -- ) (ghostheader) 0 , ;
                    729: 
                    730: ' Ghosts >wordlist Constant ghosts-wordlist
                    731: 
                    732: \ the current wordlist for ghost definitions in the host
                    733: ghosts-wordlist Value current-ghosts
                    734: 
1.52      jwilke    735: : Make-Ghost ( "name" -- ghost )
1.103     jwilke    736:   >space
                    737:   \ save current and create in ghost vocabulary
                    738:   get-current >r current-ghosts set-current
                    739:   >in @ Create >in !
                    740:   \ some forth systems like iForth need the immediate directly
                    741:   \ after the word is created
                    742:   \ restore current
                    743:   r> set-current
                    744:   here (ghostheader)
                    745:   bl word count string, align
                    746:   space>
                    747:   \ set ghost-xt field by doing a search
                    748:   dup >ghost-name count 
                    749:   current-ghosts search-wordlist
                    750:   0= ABORT" CROSS: Just created, must be there!"
                    751:   over >ghost-xt !
                    752:   DOES> 
                    753:       dup executed-ghost !
                    754:       >exec @ execute-exec ;
1.52      jwilke    755: 
                    756: \ ghost words                                          14oct92py
                    757: \                                          changed:    10may93py/jaw
                    758: 
1.103     jwilke    759: Defer search-ghosts
                    760: 
                    761: : (search-ghosts) ( adr len -- cfa true | 0 )
                    762:   current-ghosts search-wordlist ; 
                    763: 
                    764:   ' (search-ghosts) IS search-ghosts
                    765: 
                    766: : gsearch ( addr len -- ghost true | 0 )
                    767:   search-ghosts
                    768:   dup IF swap >body swap THEN ;
                    769: 
                    770: : gfind   ( string -- ghost true / string false )
1.52      jwilke    771: \ searches for string in word-list ghosts
1.103     jwilke    772:   \ dup count type space
                    773:   dup >r count gsearch
                    774:   dup IF rdrop ELSE r> swap THEN ;
1.52      jwilke    775: 
                    776: : gdiscover ( xt -- ghost true | xt false )
1.103     jwilke    777:   >r ghost-list
1.52      jwilke    778:   BEGIN @ dup
1.103     jwilke    779:   WHILE dup >magic @ <fwd> <>
                    780:         IF dup >link @ r@ =
                    781:            IF rdrop true EXIT THEN
                    782:         THEN
1.52      jwilke    783:   REPEAT
1.103     jwilke    784:   drop r> false ;
1.52      jwilke    785: 
1.103     jwilke    786: : Ghost   ( "name" -- ghost )
                    787:   >in @ bl word gfind IF  nip EXIT  THEN
1.52      jwilke    788:   drop  >in !  Make-Ghost ;
                    789: 
                    790: : >ghostname ( ghost -- adr len )
1.103     jwilke    791:   >ghost-name count ;
                    792: 
                    793: : forward? ( ghost -- flag )
                    794:   >magic @ <fwd> = ;
                    795: 
                    796: : undefined? ( ghost -- flag )
                    797:   >magic @ dup <fwd> = swap <skip> = or ;
                    798: 
                    799: : immediate? ( ghost -- flag )
                    800:   >magic @ <imm> = ;
                    801: 
                    802: Variable TWarnings
                    803: TWarnings on
                    804: Variable Exists-Warnings
                    805: Exists-Warnings on
                    806: 
                    807: : exists-warning ( ghost -- ghost )
                    808:   TWarnings @ Exists-Warnings @ and
                    809:   IF dup >ghostname warnhead type ."  exists " THEN ;
                    810: 
                    811: \ : HeaderGhost Ghost ;
                    812: 
                    813: Variable reuse-ghosts reuse-ghosts off
                    814: 
                    815: 1 [IF] \ FIXME: define when vocs are ready
                    816: : HeaderGhost ( "name" -- ghost )
                    817:   >in @ 
                    818:   bl word count 
                    819: \  2dup type space
                    820:   current-ghosts search-wordlist
                    821:   IF  >body dup undefined? reuse-ghosts @ or
                    822:       IF   nip EXIT
                    823:       ELSE exists-warning 
                    824:       THEN
                    825:       drop >in ! 
                    826:   ELSE >in ! 
                    827:   THEN 
                    828:   \ we keep the execution semantics of the prviously
                    829:   \ defined words, this is a workaround
                    830:   \ for the redefined \ until vocs work
                    831:   Make-Ghost ;
                    832: [THEN] 
1.52      jwilke    833: 
1.103     jwilke    834:  
1.78      jwilke    835: : .ghost ( ghost -- ) >ghostname type ;
                    836: 
1.77      jwilke    837: \ ' >ghostname ALIAS @name
1.52      jwilke    838: 
1.103     jwilke    839: : [G'] ( -- ghost : name )
                    840: \G ticks a ghost and returns its address
                    841: \  bl word gfind 0= ABORT" CROSS: Ghost don't exists"
                    842:   ghost state @ IF postpone literal THEN ; immediate
                    843: 
                    844: : ghost>cfa ( ghost -- cfa )
                    845:   dup undefined? ABORT" CROSS: forward " >link @ ;
                    846:    
                    847: 1 Constant <label>
1.52      jwilke    848: 
1.103     jwilke    849: Struct
                    850:   \ bitmask of address type (not used for now)
                    851:   cell% field addr-type
                    852:   \ if this address is an xt, this field points to the ghost
                    853:   cell% field addr-xt-ghost
                    854:   \ a bit mask that tells as what part of the cell
                    855:   \ is refenced from an address pointer, used for assembler generation
                    856:   cell% field addr-refs
                    857: End-Struct addr-struct
                    858: 
                    859: : %allocerase ( align size -- addr )
                    860:   dup >r %alloc dup r> erase ;
                    861: 
                    862: \ returns the addr struct, define it if 0 reference
                    863: : define-addr-struct ( addr -- struct-addr )
                    864:   dup @ ?dup IF nip EXIT THEN
                    865:   addr-struct %allocerase tuck swap ! ;
1.75      jwilke    866: 
1.52      jwilke    867: \ Predefined ghosts                                    12dec92py
                    868: 
1.103     jwilke    869: Ghost 0=                                        drop
                    870: Ghost branch    Ghost ?branch                   2drop
                    871: Ghost (do)      Ghost (?do)                     2drop
                    872: Ghost (for)                                     drop
                    873: Ghost (loop)    Ghost (+loop)                   2drop
                    874: Ghost (next)                                    drop
                    875: Ghost unloop    Ghost ;S                        2drop
                    876: Ghost lit       Ghost (compile) Ghost !         2drop drop
                    877: Ghost (does>)   Ghost noop                      2drop
                    878: Ghost (.")      Ghost (S")      Ghost (ABORT")  2drop drop
                    879: Ghost '                                         drop
                    880: Ghost :docol    Ghost :doesjump Ghost :dodoes   2drop drop
                    881: Ghost :dovar                                   drop
                    882: Ghost over      Ghost =         Ghost drop      2drop drop
                    883: Ghost - drop
                    884: Ghost 2drop drop
                    885: Ghost 2dup drop
                    886: 
                    887: 
1.52      jwilke    888: 
                    889: \ \ Parameter for target systems                         06oct92py
                    890: 
1.103     jwilke    891: 
                    892: >cross
1.52      jwilke    893: \ we define it ans like...
                    894: wordlist Constant target-environment
                    895: 
1.103     jwilke    896: \ save information of current dictionary to restore with environ>
                    897: Variable env-current 
1.52      jwilke    898: 
                    899: : >ENVIRON get-current env-current ! target-environment set-current ;
                    900: : ENVIRON> env-current @ set-current ; 
1.43      pazsan    901: 
1.48      anton     902: >TARGET
1.43      pazsan    903: 
1.103     jwilke    904: : environment? ( addr len -- [ x ] true | false )
                    905: \G returns the content of environment variable and true or
                    906: \G false if not present
                    907:    target-environment search-wordlist 
                    908:    IF EXECUTE true ELSE false THEN ;
                    909: 
                    910: : $has? ( addr len -- x | false )
                    911: \G returns the content of environment variable 
                    912: \G or false if not present
                    913:    T environment? H dup IF drop THEN ;
                    914: 
                    915: : e? ( "name" -- x )
                    916: \G returns the content of environment variable. 
                    917: \G The variable is expected to exist. If not, issue an error.
                    918:    bl word count T environment? H 
                    919:    0= ABORT" environment variable not defined!" ;
                    920: 
                    921: : has? ( "name" --- x | false )
                    922: \G returns the content of environment variable 
                    923: \G or false if not present
                    924:    bl word count T $has? H ;
1.52      jwilke    925: 
1.48      anton     926: 
1.54      pazsan    927: >ENVIRON get-order get-current swap 1+ set-order
                    928: true SetValue compiler
1.83      pazsan    929: true SetValue cross
1.54      pazsan    930: true SetValue standard-threading
                    931: >TARGET previous
1.52      jwilke    932: 
1.77      jwilke    933: 0
1.103     jwilke    934: [IFDEF] mach-file drop mach-file count 1 [THEN]
                    935: [IFDEF] machine-file drop machine-file 1 [THEN]
                    936: [IF]   included hex
1.77      jwilke    937: [ELSE]  cr ." No machine description!" ABORT 
                    938: [THEN]
1.43      pazsan    939: 
1.53      jwilke    940: >ENVIRON
                    941: 
1.54      pazsan    942: T has? ec H
                    943: [IF]
                    944: false DefaultValue relocate
                    945: false DefaultValue file
                    946: false DefaultValue OS
                    947: false DefaultValue prims
                    948: false DefaultValue floating
                    949: false DefaultValue glocals
                    950: false DefaultValue dcomps
                    951: false DefaultValue hash
                    952: false DefaultValue xconds
                    953: false DefaultValue header
                    954: [THEN]
                    955: 
                    956: true DefaultValue interpreter
                    957: true DefaultValue ITC
                    958: false DefaultValue rom
1.73      jwilke    959: true DefaultValue standardthreading
1.53      jwilke    960: 
1.52      jwilke    961: >TARGET
1.53      jwilke    962: s" relocate" T environment? H 
1.103     jwilke    963: \ JAW why set NIL to this?!
                    964: [IF]   drop \ SetValue NIL
1.53      jwilke    965: [ELSE] >ENVIRON T NIL H SetValue relocate
                    966: [THEN]
1.43      pazsan    967: 
                    968: >CROSS
                    969: 
1.52      jwilke    970: \ \ Create additional parameters                         19jan95py
1.19      pazsan    971: 
1.71      jwilke    972: \ currently cross only works for host machines with address-unit-bits
                    973: \ eual to 8 because of s! and sc!
                    974: \ but I start to query the environment just to modularize a little bit
                    975: 
                    976: : check-address-unit-bits ( -- )       
                    977: \      s" ADDRESS-UNIT-BITS" environment?
                    978: \      IF 8 <> ELSE true THEN
                    979: \      ABORT" ADDRESS-UNIT-BITS unknown or not equal to 8!"
                    980: 
                    981: \      shit, this doesn't work because environment? is only defined for 
                    982: \      gforth.fi and not kernl???.fi
                    983:        ;
                    984: 
                    985: check-address-unit-bits
                    986: 8 Constant bits/byte   \ we define: byte is address-unit
                    987: 
                    988: 1 bits/byte lshift Constant maxbyte 
1.77      jwilke    989: \ this sets byte size for the target machine, (probably right guess) jaw
1.67      jwilke    990: 
1.19      pazsan    991: T
1.71      jwilke    992: NIL                    Constant TNIL
                    993: cell                   Constant tcell
                    994: cell<<                 Constant tcell<<
                    995: cell>bit               Constant tcell>bit
                    996: bits/char              Constant tbits/char
                    997: bits/char H bits/byte T /      
                    998:                        Constant tchar
                    999: float                  Constant tfloat
                   1000: 1 bits/char lshift     Constant tmaxchar
                   1001: [IFUNDEF] bits/byte
                   1002: 8                      Constant tbits/byte
                   1003: [ELSE]
                   1004: bits/byte              Constant tbits/byte
                   1005: [THEN]
1.19      pazsan   1006: H
1.81      pazsan   1007: tbits/char bits/byte / Constant tbyte
1.71      jwilke   1008: 
1.19      pazsan   1009: 
1.48      anton    1010: \ Variables                                            06oct92py
                   1011: 
                   1012: Variable image
                   1013: Variable tlast    TNIL tlast !  \ Last name field
                   1014: Variable tlastcfa \ Last code field
                   1015: Variable bit$
1.52      jwilke   1016: 
                   1017: \ statistics                                           10jun97jaw
                   1018: 
                   1019: Variable headers-named 0 headers-named !
                   1020: Variable user-vars 0 user-vars !
                   1021: 
1.67      jwilke   1022: : target>bitmask-size ( u1 -- u2 )
                   1023:   1- tcell>bit rshift 1+ ;
                   1024: 
1.102     jwilke   1025: : allocatetarget ( size --- adr )
1.67      jwilke   1026:   dup allocate ABORT" CROSS: No memory for target"
                   1027:   swap over swap erase ;
1.52      jwilke   1028: 
1.54      pazsan   1029: \ \ memregion.fs
1.52      jwilke   1030: 
                   1031: 
                   1032: Variable last-defined-region    \ pointer to last defined region
                   1033: Variable region-link            \ linked list with all regions
                   1034: Variable mirrored-link          \ linked list for mirrored regions
                   1035: 0 dup mirrored-link ! region-link !
                   1036: 
                   1037: 
1.103     jwilke   1038: : >rname 7 cells + ;
                   1039: : >rbm   4 cells + ;
                   1040: : >rmem  5 cells + ;
                   1041: : >rtype 6 cells + ;
1.67      jwilke   1042: : >rlink 3 cells + ;
1.52      jwilke   1043: : >rdp 2 cells + ;
                   1044: : >rlen cell+ ;
                   1045: : >rstart ;
                   1046: 
                   1047: 
1.103     jwilke   1048: : region ( addr len -- )                
                   1049: \G create a new region
1.52      jwilke   1050:   \ check whether predefined region exists 
                   1051:   save-input bl word find >r >r restore-input throw r> r> 0= 
                   1052:   IF   \ make region
                   1053:        drop
                   1054:        save-input create restore-input throw
                   1055:        here last-defined-region !
                   1056:        over ( startaddr ) , ( length ) , ( dp ) ,
1.103     jwilke   1057:        region-link linked 0 , 0 , 0 , bl word count string,
1.52      jwilke   1058:   ELSE \ store new parameters in region
                   1059:         bl word drop
                   1060:        >body >r r@ last-defined-region !
1.67      jwilke   1061:        r@ >rlen ! dup r@ >rstart ! r> >rdp !
1.52      jwilke   1062:   THEN ;
                   1063: 
1.103     jwilke   1064: : borders ( region -- startaddr endaddr ) 
                   1065: \G returns lower and upper region border
1.67      jwilke   1066:   dup >rstart @ swap >rlen @ over + ;
1.52      jwilke   1067: 
1.103     jwilke   1068: : extent  ( region -- startaddr len )   
                   1069: \G returns the really used area
1.67      jwilke   1070:   dup >rstart @ swap >rdp @ over - ;
1.52      jwilke   1071: 
1.103     jwilke   1072: : area ( region -- startaddr totallen ) 
                   1073: \G returns the total area
1.79      jwilke   1074:   dup >rstart @ swap >rlen @ ;
1.52      jwilke   1075: 
1.103     jwilke   1076: : mirrored                              
                   1077: \G mark a region as mirrored
1.52      jwilke   1078:   mirrored-link
1.68      jwilke   1079:   align linked last-defined-region @ , ;
1.52      jwilke   1080: 
1.67      jwilke   1081: : .addr ( u -- )
                   1082: \G prints a 16 or 32 Bit nice hex value
1.52      jwilke   1083:   base @ >r hex
                   1084:   tcell 2 u>
1.77      jwilke   1085:   IF s>d <# # # # # [char] . hold # # # # #> type
1.52      jwilke   1086:   ELSE s>d <# # # # # # #> type
1.103     jwilke   1087:   THEN r> base ! space ;
1.52      jwilke   1088: 
                   1089: : .regions                      \G display region statistic
                   1090: 
                   1091:   \ we want to list the regions in the right order
                   1092:   \ so first collect all regions on stack
                   1093:   0 region-link @
                   1094:   BEGIN dup WHILE dup @ REPEAT drop
                   1095:   BEGIN dup
1.67      jwilke   1096:   WHILE cr
                   1097:         0 >rlink - >r
                   1098:         r@ >rname count tuck type
1.52      jwilke   1099:         12 swap - 0 max spaces space
1.67      jwilke   1100:         ." Start: " r@ >rstart @ dup .addr space
                   1101:         ." End: " r@ >rlen @ + .addr space
                   1102:         ." DP: " r> >rdp @ .addr
1.52      jwilke   1103:   REPEAT drop
1.53      jwilke   1104:   s" rom" T $has? H 0= ?EXIT
1.52      jwilke   1105:   cr ." Mirrored:"
                   1106:   mirrored-link @
                   1107:   BEGIN dup
1.67      jwilke   1108:   WHILE space dup cell+ @ >rname count type @
1.52      jwilke   1109:   REPEAT drop cr
                   1110:   ;
                   1111: 
                   1112: \ -------- predefined regions
                   1113: 
                   1114: 0 0 region address-space
                   1115: \ total memory addressed and used by the target system
                   1116: 
                   1117: 0 0 region dictionary
                   1118: \ rom area for the compiler
                   1119: 
1.53      jwilke   1120: T has? rom H
1.52      jwilke   1121: [IF]
                   1122: 0 0 region ram-dictionary mirrored
                   1123: \ ram area for the compiler
                   1124: [ELSE]
                   1125: ' dictionary ALIAS ram-dictionary
                   1126: [THEN]
                   1127: 
                   1128: 0 0 region return-stack
                   1129: 
                   1130: 0 0 region data-stack
                   1131: 
                   1132: 0 0 region tib-region
                   1133: 
                   1134: ' dictionary ALIAS rom-dictionary
                   1135: 
                   1136: 
1.102     jwilke   1137: : setup-target ( -- )   \G initialize targets memory space
1.53      jwilke   1138:   s" rom" T $has? H
1.52      jwilke   1139:   IF  \ check for ram and rom...
1.72      jwilke   1140:       \ address-space area nip 0<>
1.67      jwilke   1141:       ram-dictionary area nip 0<>
                   1142:       rom-dictionary area nip 0<>
1.72      jwilke   1143:       and 0=
1.52      jwilke   1144:       ABORT" CROSS: define address-space, rom- , ram-dictionary, with rom-support!"
                   1145:   THEN
                   1146:   address-space area nip
                   1147:   IF
                   1148:       address-space area
                   1149:   ELSE
                   1150:       dictionary area
                   1151:   THEN
1.67      jwilke   1152:   nip 0=
1.52      jwilke   1153:   ABORT" CROSS: define at least address-space or dictionary!!"
1.67      jwilke   1154: 
                   1155:   \ allocate target for each region
                   1156:   region-link
                   1157:   BEGIN @ dup
                   1158:   WHILE dup
                   1159:         0 >rlink - >r
                   1160:         r@ >rlen @
                   1161:         IF      \ allocate mem
1.103     jwilke   1162:                 r@ >rlen @ allocatetarget dup image !
1.67      jwilke   1163:                 r@ >rmem !
                   1164: 
1.103     jwilke   1165:                 r@ >rlen @
1.67      jwilke   1166:                 target>bitmask-size allocatetarget
1.72      jwilke   1167:                 dup bit$ !
1.103     jwilke   1168:                 r@ >rbm !
1.67      jwilke   1169: 
1.103     jwilke   1170:                r@ >rlen @
                   1171:                tcell / 1+ cells allocatetarget r@ >rtype !
                   1172: 
                   1173:                rdrop
1.67      jwilke   1174:         ELSE    r> drop THEN
1.72      jwilke   1175:    REPEAT drop ;
                   1176: 
1.102     jwilke   1177: \ MakeKernal                                                           22feb99jaw
1.72      jwilke   1178: 
                   1179: : makekernel ( targetsize -- targetsize )
                   1180:   dup dictionary >rlen ! setup-target ;
                   1181: 
                   1182: >MINIMAL
                   1183: : makekernel makekernel ;
                   1184: >CROSS
1.52      jwilke   1185: 
1.54      pazsan   1186: \ \ switched tdp for rom support                               03jun97jaw
1.52      jwilke   1187: 
                   1188: \ second value is here to store some maximal value for statistics
                   1189: \ tempdp is also embedded here but has nothing to do with rom support
                   1190: \ (needs switched dp)
                   1191: 
                   1192: variable tempdp        0 ,     \ temporary dp for resolving
                   1193: variable tempdp-save
                   1194: 
                   1195: 0 [IF]
                   1196: variable romdp 0 ,      \ Dictionary-Pointer for ramarea
                   1197: variable ramdp 0 ,      \ Dictionary-Pointer for romarea
                   1198: 
                   1199: \
                   1200: variable sramdp                \ start of ram-area for forth
                   1201: variable sromdp                \ start of rom-area for forth
                   1202: 
                   1203: [THEN]
                   1204: 
                   1205: 
                   1206: 0 value tdp
                   1207: variable fixed         \ flag: true: no automatic switching
                   1208:                        \       false: switching is done automatically
                   1209: 
                   1210: \ Switch-Policy:
                   1211: \
                   1212: \ a header is always compiled into rom
                   1213: \ after a created word (create and variable) compilation goes to ram
                   1214: \
                   1215: \ Be careful: If you want to make the data behind create into rom
                   1216: \ you have to put >rom before create!
                   1217: 
                   1218: variable constflag constflag off
                   1219: 
1.67      jwilke   1220: : activate ( region -- )
                   1221: \G next code goes to this region
                   1222:   >rdp to tdp ;
                   1223: 
1.52      jwilke   1224: : (switchram)
1.53      jwilke   1225:   fixed @ ?EXIT s" rom" T $has? H 0= ?EXIT
1.67      jwilke   1226:   ram-dictionary activate ;
1.52      jwilke   1227: 
                   1228: : switchram
                   1229:   constflag @
                   1230:   IF constflag off ELSE (switchram) THEN ;
                   1231: 
                   1232: : switchrom
1.67      jwilke   1233:   fixed @ ?EXIT rom-dictionary activate ;
1.52      jwilke   1234: 
                   1235: : >tempdp ( addr -- ) 
                   1236:   tdp tempdp-save ! tempdp to tdp tdp ! ;
                   1237: : tempdp> ( -- )
                   1238:   tempdp-save @ to tdp ;
                   1239: 
                   1240: : >ram  fixed off (switchram) fixed on ;
                   1241: : >rom  fixed off switchrom fixed on ;
                   1242: : >auto fixed off switchrom ;
                   1243: 
                   1244: 
                   1245: 
                   1246: \ : romstart dup sromdp ! romdp ! ;
                   1247: \ : ramstart dup sramdp ! ramdp ! ;
                   1248: 
1.67      jwilke   1249: \ default compilation goes to rom
1.52      jwilke   1250: \ when romable support is off, only the rom switch is used (!!)
                   1251: >auto
                   1252: 
1.48      anton    1253: : there  tdp @ ;
                   1254: 
1.52      jwilke   1255: >TARGET
1.48      anton    1256: 
1.52      jwilke   1257: \ \ Target Memory Handling
1.1       anton    1258: 
                   1259: \ Byte ordering and cell size                          06oct92py
                   1260: 
1.19      pazsan   1261: : cell+         tcell + ;
                   1262: : cells         tcell<< lshift ;
1.71      jwilke   1263: : chars         tchar * ;
                   1264: : char+                tchar + ;
1.19      pazsan   1265: : floats       tfloat * ;
1.6       anton    1266:     
1.1       anton    1267: >CROSS
1.19      pazsan   1268: : cell/         tcell<< rshift ;
1.1       anton    1269: >TARGET
                   1270: 20 CONSTANT bl
1.52      jwilke   1271: \ TNIL Constant NIL
1.1       anton    1272: 
                   1273: >CROSS
                   1274: 
1.20      pazsan   1275: bigendian
                   1276: [IF]
1.52      jwilke   1277:    : S!  ( n addr -- )  >r s>d r> tcell bounds swap 1-
1.20      pazsan   1278:      DO  maxbyte ud/mod rot I c!  -1 +LOOP  2drop ;
1.52      jwilke   1279:    : S@  ( addr -- n )  >r 0 0 r> tcell bounds
1.20      pazsan   1280:      DO  maxbyte * swap maxbyte um* rot + swap I c@ + swap  LOOP d>s ;
1.57      pazsan   1281:    : Sc!  ( n addr -- )  >r s>d r> tchar bounds swap 1-
                   1282:      DO  maxbyte ud/mod rot I c!  -1 +LOOP  2drop ;
                   1283:    : Sc@  ( addr -- n )  >r 0 0 r> tchar bounds
                   1284:      DO  maxbyte * swap maxbyte um* rot + swap I c@ + swap  LOOP d>s ;
1.19      pazsan   1285: [ELSE]
1.52      jwilke   1286:    : S!  ( n addr -- )  >r s>d r> tcell bounds
1.20      pazsan   1287:      DO  maxbyte ud/mod rot I c!  LOOP  2drop ;
1.52      jwilke   1288:    : S@  ( addr -- n )  >r 0 0 r> tcell bounds swap 1-
1.20      pazsan   1289:      DO  maxbyte * swap maxbyte um* rot + swap I c@ + swap  -1 +LOOP d>s ;
1.57      pazsan   1290:    : Sc!  ( n addr -- )  >r s>d r> tchar bounds
                   1291:      DO  maxbyte ud/mod rot I c!  LOOP  2drop ;
                   1292:    : Sc@  ( addr -- n )  >r 0 0 r> tchar bounds swap 1-
                   1293:      DO  maxbyte * swap maxbyte um* rot + swap I c@ + swap  -1 +LOOP d>s ;
1.1       anton    1294: [THEN]
                   1295: 
1.67      jwilke   1296: : taddr>region ( taddr -- region | 0 )
                   1297: \G finds for a target-address the correct region
                   1298: \G returns 0 if taddr is not in range of a target memory region
                   1299:   region-link
                   1300:   BEGIN @ dup
                   1301:   WHILE dup >r
                   1302:         0 >rlink - >r
                   1303:         r@ >rlen @
                   1304:         IF      dup r@ borders within
                   1305:                 IF r> r> drop nip EXIT THEN
                   1306:         THEN
                   1307:         r> drop
                   1308:         r>
                   1309:   REPEAT
                   1310:   2drop 0 ;
                   1311: 
1.103     jwilke   1312: : taddr>region-abort ( taddr -- region | 0 )
                   1313:   dup taddr>region dup 0= 
                   1314:   IF    drop cr ." Wrong address: " .addr
                   1315:         -1 ABORT" Address out of range!"
                   1316:   THEN nip ;
                   1317: 
1.67      jwilke   1318: : (>regionimage) ( taddr -- 'taddr )
                   1319:   dup
                   1320:   \ find region we want to address
1.103     jwilke   1321:   taddr>region-abort
1.67      jwilke   1322:   >r
                   1323:   \ calculate offset in region
                   1324:   r@ >rstart @ -
                   1325:   \ add regions real address in our memory
                   1326:   r> >rmem @ + ;
                   1327: 
1.103     jwilke   1328: : (>regionbm) ( taddr -- 'taddr bitmaskbaseaddr )
                   1329:   dup
                   1330:   \ find region we want to address
                   1331:   taddr>region-abort
                   1332:   >r
                   1333:   \ calculate offset in region
                   1334:   r@ >rstart @ -
                   1335:   \ add regions real address in our memory
                   1336:   r> >rbm @ ;
                   1337: 
                   1338: : (>regiontype) ( taddr -- 'taddr )
                   1339:   dup
                   1340:   \ find region we want to address
                   1341:   taddr>region-abort
                   1342:   >r
                   1343:   \ calculate offset in region
                   1344:   r@ >rstart @ - tcell / cells
                   1345:   \ add regions real address in our memory
                   1346:   r> >rtype @ + ;
                   1347:   
1.1       anton    1348: \ Bit string manipulation                               06oct92py
                   1349: \                                                       9may93jaw
                   1350: CREATE Bittable 80 c, 40 c, 20 c, 10 c, 8 c, 4 c, 2 c, 1 c,
                   1351: : bits ( n -- n ) chars Bittable + c@ ;
                   1352: 
                   1353: : >bit ( addr n -- c-addr mask ) 8 /mod rot + swap bits ;
                   1354: : +bit ( addr n -- )  >bit over c@ or swap c! ;
1.4       pazsan   1355: : -bit ( addr n -- )  >bit invert over c@ and swap c! ;
1.67      jwilke   1356: 
1.103     jwilke   1357: : @relbit ( taddr -- f ) (>regionbm) swap cell/ >bit swap c@ and ;
                   1358: 
1.84      jwilke   1359: : (relon) ( taddr -- )  
                   1360:   [ [IFDEF] fd-relocation-table ]
                   1361:   s" +" fd-relocation-table write-file throw
                   1362:   dup s>d <# #s #> fd-relocation-table write-line throw
                   1363:   [ [THEN] ]
1.103     jwilke   1364:   (>regionbm) swap cell/ +bit ;
1.84      jwilke   1365: 
                   1366: : (reloff) ( taddr -- ) 
                   1367:   [ [IFDEF] fd-relocation-table ]
                   1368:   s" -" fd-relocation-table write-file throw
                   1369:   dup s>d <# #s #> fd-relocation-table write-line throw
                   1370:   [ [THEN] ]
1.103     jwilke   1371:   (>regionbm) swap cell/ -bit ;
1.67      jwilke   1372: 
                   1373: : (>image) ( taddr -- absaddr ) image @ + ;
                   1374: 
                   1375: DEFER >image
                   1376: DEFER relon
                   1377: DEFER reloff
                   1378: DEFER correcter
                   1379: 
                   1380: T has? relocate H
                   1381: [IF]
                   1382: ' (relon) IS relon
                   1383: ' (reloff) IS reloff
1.103     jwilke   1384: ' (>regionimage) IS >image
1.67      jwilke   1385: [ELSE]
                   1386: ' drop IS relon
                   1387: ' drop IS reloff
1.68      jwilke   1388: ' (>regionimage) IS >image
1.67      jwilke   1389: [THEN]
1.1       anton    1390: 
                   1391: \ Target memory access                                 06oct92py
                   1392: 
                   1393: : align+  ( taddr -- rest )
1.48      anton    1394:     tcell tuck 1- and - [ tcell 1- ] Literal and ;
1.22      anton    1395: : cfalign+  ( taddr -- rest )
1.39      pazsan   1396:     \ see kernel.fs:cfaligned
1.43      pazsan   1397:     /maxalign tuck 1- and - [ /maxalign 1- ] Literal and ;
1.1       anton    1398: 
                   1399: >TARGET
                   1400: : aligned ( taddr -- ta-addr )  dup align+ + ;
                   1401: \ assumes cell alignment granularity (as GNU C)
                   1402: 
1.22      anton    1403: : cfaligned ( taddr1 -- taddr2 )
1.39      pazsan   1404:     \ see kernel.fs
1.22      anton    1405:     dup cfalign+ + ;
                   1406: 
1.52      jwilke   1407: : @  ( taddr -- w )     >image S@ ;
                   1408: : !  ( w taddr -- )     >image S! ;
1.57      pazsan   1409: : c@ ( taddr -- char )  >image Sc@ ;
                   1410: : c! ( char taddr -- )  >image Sc! ;
1.7       anton    1411: : 2@ ( taddr -- x1 x2 ) T dup cell+ @ swap @ H ;
1.82      pazsan   1412: : 2! ( x1 x2 taddr -- ) T tuck ! cell+ ! H ;
1.1       anton    1413: 
                   1414: \ Target compilation primitives                        06oct92py
                   1415: \ included A!                                          16may93jaw
                   1416: 
                   1417: : here  ( -- there )    there ;
                   1418: : allot ( n -- )        tdp +! ;
1.78      jwilke   1419: : ,     ( w -- )        T here H tcell T allot  ! H ;
                   1420: : c,    ( char -- )     T here H tchar T allot c! H ;
                   1421: : align ( -- )          T here H align+ 0 ?DO  bl T c, H tchar +LOOP ;
1.22      anton    1422: : cfalign ( -- )
1.78      jwilke   1423:     T here H cfalign+ 0 ?DO  bl T c, H tchar +LOOP ;
1.1       anton    1424: 
1.71      jwilke   1425: : >address             dup 0>= IF tbyte / THEN ; \ ?? jaw 
1.59      pazsan   1426: : A!                    swap >address swap dup relon T ! H ;
                   1427: : A,    ( w -- )        >address T here H relon T , H ;
1.1       anton    1428: 
1.103     jwilke   1429: 
1.1       anton    1430: >CROSS
                   1431: 
1.52      jwilke   1432: : tcmove ( source dest len -- )
                   1433: \G cmove in target memory
1.57      pazsan   1434:   tchar * bounds
1.52      jwilke   1435:   ?DO  dup T c@ H I T c! H 1+
1.57      pazsan   1436:   tchar +LOOP  drop ;
1.1       anton    1437: 
1.103     jwilke   1438: 
1.67      jwilke   1439: \ \ Load Assembler
                   1440: 
1.1       anton    1441: >TARGET
1.74      jwilke   1442: H also Forth definitions
1.1       anton    1443: 
1.77      jwilke   1444: : X    bl word count [ ' target >wordlist ] Literal search-wordlist
1.52      jwilke   1445:        IF      state @ IF compile,
                   1446:                ELSE execute THEN
1.77      jwilke   1447:        ELSE    -1 ABORT" Cross: access method not supported!"
                   1448:        THEN ; immediate
1.1       anton    1449: 
1.52      jwilke   1450: [IFDEF] asm-include asm-include [THEN] hex
1.1       anton    1451: 
1.52      jwilke   1452: previous
1.103     jwilke   1453: 
                   1454: \ \ --------------------        Host/Target copy etc.          29aug01jaw
                   1455: 
                   1456: 
                   1457: >CROSS
                   1458: 
                   1459: : th-count ( taddr -- host-addr len )
                   1460: \G returns host address of target string
                   1461:   assert1( tbyte 1 = )
                   1462:   dup X c@ swap X char+ >image swap ;
                   1463: 
                   1464: : ht-move ( haddr taddr len -- )
                   1465: \G moves data from host-addr to destination in target-addr
                   1466: \G character by character
                   1467:   swap -rot bounds ?DO I c@ over X c! X char+ LOOP drop ;
                   1468: 
                   1469: 2Variable last-string
                   1470: 
                   1471: : ht-string,  ( addr count -- )
                   1472:   dup there swap last-string 2!
                   1473:   dup T c, H bounds  ?DO  I c@ T c, H  LOOP ; 
                   1474: 
                   1475: >TARGET
                   1476: 
                   1477: : count dup X c@ swap X char+ swap ;
                   1478: \ FIXME -1 on 64 bit machines?!?!
                   1479: : on           T -1 swap ! H ; 
                   1480: : off          T 0 swap ! H ;
1.1       anton    1481: 
1.52      jwilke   1482: \ \ --------------------        Compiler Plug Ins               01aug97jaw
1.1       anton    1483: 
1.103     jwilke   1484: >CROSS
                   1485: 
1.102     jwilke   1486: \  Compiler States
                   1487: 
                   1488: Variable comp-state
                   1489: 0 Constant interpreting
                   1490: 1 Constant compiling
                   1491: 2 Constant resolving
                   1492: 3 Constant assembling
                   1493: 
1.103     jwilke   1494: : compiling? comp-state @ compiling = ;
1.102     jwilke   1495: 
1.103     jwilke   1496: : Plugin ( -- : pluginname )
                   1497:   Create 
                   1498:   ['] noop , \ action
                   1499:   ['] noop , \ target plugin action
                   1500:   8765 ,     \ plugin magic
                   1501:   DOES> perform ;
                   1502: 
                   1503: Plugin DummyPlugin
                   1504: 
                   1505: : 'PI ( -- addr : pluginname )
                   1506:   ' >body dup 2 cells + @ 8765 <> ABORT" not a plugin" ;
                   1507: 
                   1508: : plugin-of ( xt -- : pluginname )
                   1509:   dup 'PI 2! ;
                   1510: 
                   1511: : action-of ( xt -- : plunginname )
                   1512:   'PI cell+ ! ;
                   1513: 
                   1514: : TPA ( -- : plugin )
                   1515: \ target plugin action
                   1516: \ executes current target action of plugin
                   1517:   'PI cell+ POSTPONE literal POSTPONE perform ; immediate
                   1518: 
                   1519: Variable ppi-temp 0 ppi-temp !
                   1520: 
                   1521: : pa:
                   1522: \g define plugin action
                   1523:   ppi-temp @ ABORT" pa: definition not closed"
                   1524:   'PI ppi-temp ! :noname ;
                   1525: 
                   1526: : ;pa
                   1527: \g end a definition for plugin action
                   1528:   POSTPONE ; ppi-temp @ ! 0 ppi-temp ! ; immediate
                   1529: 
                   1530: 
                   1531: Plugin lit, ( n -- )
                   1532: Plugin alit, ( n -- )
                   1533: 
                   1534: Plugin branch, ( target-addr -- )      \ compiles a branch
                   1535: Plugin ?branch, ( target-addr -- )     \ compiles a ?branch
                   1536: Plugin branchmark, ( -- branch-addr )  \ reserves room for a branch
                   1537: Plugin ?branchmark, ( -- branch-addr ) \ reserves room for a ?branch
                   1538: Plugin ?domark, ( -- branch-addr )     \ reserves room for a ?do branch
                   1539: Plugin branchto, ( -- )                        \ actual program position is target of a branch (do e.g. alignment)
                   1540: Plugin branchtoresolve, ( branch-addr -- ) \ resolves a forward reference from branchmark
                   1541: Plugin branchtomark, ( -- target-addr )        \ marks a branch destination
                   1542: 
                   1543: Plugin colon, ( tcfa -- )              \ compiles call to tcfa at current position
                   1544: Plugin colonmark, ( -- addr )          \ marks a colon call
                   1545: Plugin colon-resolve ( tcfa addr -- )
                   1546: 
                   1547: Plugin addr-resolve ( target-addr addr -- )
                   1548: Plugin doer-resolve ( ghost res-pnt target-addr addr -- ghost res-pnt )
                   1549: 
                   1550: Plugin ncontrols? ( [ xn ... x1 ] n -- ) \ checks wheter n control structures are open
                   1551: Plugin if,     ( -- if-token )
                   1552: Plugin else,   ( if-token -- if-token )
                   1553: Plugin then,   ( if-token -- )
                   1554: Plugin ahead,
                   1555: Plugin begin,
                   1556: Plugin while,
                   1557: Plugin until,
                   1558: Plugin again,
                   1559: Plugin repeat,
                   1560: Plugin cs-swap ( x1 x2 -- x2 x1 )
                   1561: 
                   1562: Plugin case,   ( -- n )
                   1563: Plugin of,     ( n -- x1 n )
                   1564: Plugin endof,  ( x1 n -- x2 n )
                   1565: Plugin endcase,        ( x1 .. xn n -- )
                   1566: 
                   1567: Plugin do,     ( -- do-token )
                   1568: Plugin ?do,    ( -- ?do-token )
                   1569: Plugin for,    ( -- for-token )
                   1570: Plugin loop,   ( do-token / ?do-token -- )
                   1571: Plugin +loop,  ( do-token / ?do-token -- )
                   1572: Plugin next,   ( for-token )
                   1573: Plugin leave,  ( -- )
                   1574: Plugin ?leave,         ( -- )
1.102     jwilke   1575: 
                   1576: [IFUNDEF] ca>native
1.103     jwilke   1577: Plugin ca>native       
1.102     jwilke   1578: [THEN]
                   1579: 
1.103     jwilke   1580: Plugin doprim, \ compiles start of a primitive
                   1581: Plugin docol,          \ compiles start of a colon definition
                   1582: Plugin doer,           
                   1583: Plugin fini,      \ compiles end of definition ;s
                   1584: Plugin doeshandler,
                   1585: Plugin dodoes,
                   1586: 
                   1587: Plugin colon-start
                   1588: Plugin colon-end
                   1589: 
                   1590: Plugin ]comp     \ starts compilation
                   1591: Plugin comp[     \ ends compilation
                   1592: 
                   1593: T 2 cells H Value xt>body
                   1594: 
                   1595: Plugin t>body             \ we need the system >body
                   1596:                        \ and the target >body
                   1597: 
1.52      jwilke   1598: >TARGET
1.103     jwilke   1599: : >body t>body ;
1.52      jwilke   1600: >CROSS
                   1601: 
1.103     jwilke   1602: : (cc) T a, H ;                                        ' (cc) plugin-of colon,
1.52      jwilke   1603: 
1.103     jwilke   1604: : (cr) >tempdp ]comp colon, comp[ tempdp> ;    ' (cr) plugin-of colon-resolve
                   1605: : (ar) T ! H ;                                 ' (ar) plugin-of addr-resolve
1.54      pazsan   1606: : (dr)  ( ghost res-pnt target-addr addr )
                   1607:        >tempdp drop over 
                   1608:        dup >magic @ <do:> =
                   1609:        IF      doer,
                   1610:        ELSE    dodoes,
                   1611:        THEN 
1.103     jwilke   1612:        tempdp> ;                               ' (dr) plugin-of doer-resolve
1.54      pazsan   1613: 
                   1614: : (cm) ( -- addr )
                   1615:     T here align H
1.103     jwilke   1616:     -1 colon, ;                                        ' (cm) plugin-of colonmark,
1.1       anton    1617: 
1.52      jwilke   1618: >TARGET
1.102     jwilke   1619: : compile, colon, ;
1.52      jwilke   1620: >CROSS
1.1       anton    1621: 
1.102     jwilke   1622: \ resolve structure
                   1623: 
                   1624: : >next ;              \ link to next field
                   1625: : >tag cell+ ;         \ indecates type of reference: 0: call, 1: address, 2: doer
                   1626: : >taddr cell+ cell+ ; 
                   1627: : >ghost 3 cells + ;
                   1628: : >file 4 cells + ;
                   1629: : >line 5 cells + ;
                   1630: 
                   1631: : (refered) ( ghost addr tag -- )
                   1632: \G creates a reference to ghost at address taddr
1.103     jwilke   1633:     >space
                   1634:     rot >link linked
1.102     jwilke   1635:     ( taddr tag ) ,
                   1636:     ( taddr ) , 
                   1637:     last-header-ghost @ , 
                   1638:     loadfile , 
                   1639:     sourceline# , 
1.103     jwilke   1640:     space>
1.102     jwilke   1641:   ;
                   1642: 
1.52      jwilke   1643: : refered ( ghost tag -- )
1.53      jwilke   1644: \G creates a resolve structure
1.54      pazsan   1645:     T here aligned H swap (refered)
                   1646:   ;
                   1647: 
                   1648: : killref ( addr ghost -- )
                   1649: \G kills a forward reference to ghost at position addr
                   1650: \G this is used to eleminate a :dovar refence after making a DOES>
                   1651:     dup >magic @ <fwd> <> IF 2drop EXIT THEN
                   1652:     swap >r >link
                   1653:     BEGIN dup @ dup  ( addr last this )
                   1654:     WHILE dup >taddr @ r@ =
                   1655:         IF   @ over !
                   1656:         ELSE nip THEN
                   1657:     REPEAT rdrop 2drop 
1.53      jwilke   1658:   ;
1.48      anton    1659: 
1.52      jwilke   1660: Defer resolve-warning
1.1       anton    1661: 
1.52      jwilke   1662: : reswarn-test ( ghost res-struct -- ghost res-struct )
1.78      jwilke   1663:   over cr ." Resolving " .ghost dup ."  in " >ghost @ .ghost ;
1.1       anton    1664: 
1.52      jwilke   1665: : reswarn-forward ( ghost res-struct -- ghost res-struct )
1.78      jwilke   1666:   over warnhead .ghost dup ."  is referenced in " 
                   1667:   >ghost @ .ghost ;
1.1       anton    1668: 
1.52      jwilke   1669: \ ' reswarn-test IS resolve-warning
                   1670:  
1.1       anton    1671: \ resolve                                              14oct92py
                   1672: 
1.54      pazsan   1673:  : resolve-loop ( ghost resolve-list tcfa -- )
                   1674:     >r
                   1675:     BEGIN dup WHILE 
                   1676: \        dup >tag @ 2 = IF reswarn-forward THEN
                   1677:          resolve-warning 
                   1678:          r@ over >taddr @ 
                   1679:          2 pick >tag @
                   1680:          CASE  0 OF colon-resolve ENDOF
                   1681:                1 OF addr-resolve ENDOF
                   1682:                2 OF doer-resolve ENDOF
                   1683:          ENDCASE
                   1684:          @ \ next list element
                   1685:     REPEAT 2drop rdrop 
                   1686:   ;
1.52      jwilke   1687: 
                   1688: \ : resolve-loop ( ghost tcfa -- ghost tcfa )
                   1689: \  >r dup >link @
                   1690: \  BEGIN  dup  WHILE  dup T @ H r@ rot T ! H REPEAT  drop r> ;
1.1       anton    1691: 
                   1692: \ exists                                                9may93jaw
                   1693: 
1.103     jwilke   1694: : exists ( ghost tcfa -- )
                   1695: \G print warning and set new target link in ghost
                   1696:   swap exists-warning
                   1697:   >link ! ;
1.52      jwilke   1698: 
1.103     jwilke   1699: Variable rdbg
1.1       anton    1700: 
                   1701: : resolve  ( ghost tcfa -- )
1.54      pazsan   1702: \G resolve referencies to ghost with tcfa
1.103     jwilke   1703:     rdbg @ IF break: THEN 
                   1704:     dup taddr>region 0<> IF
                   1705:       2dup (>regiontype) define-addr-struct addr-xt-ghost 
                   1706: 
                   1707:       \ we define new address only if empty
                   1708:       \ this is for not to overtake the alias ghost
                   1709:       \ but the very first that really defines it
                   1710: \ FIXME: define when HeaderGhost is ready
                   1711:       dup @ 0= IF ! ELSE 2drop THEN
                   1712: \    !
                   1713:     THEN
                   1714: 
                   1715:     \ is ghost resolved?, second resolve means another 
                   1716:     \ definition with the same name
1.75      jwilke   1717:     over undefined? 0= IF  exists EXIT THEN
1.54      pazsan   1718:     \ get linked-list
                   1719:     swap >r r@ >link @ swap \ ( list tcfa R: ghost )
                   1720:     \ mark ghost as resolved
                   1721:     dup r@ >link ! <res> r@ >magic !
                   1722:     \ loop through forward referencies
                   1723:     r> -rot 
                   1724:     comp-state @ >r Resolving comp-state !
                   1725:     resolve-loop 
                   1726:     r> comp-state !
                   1727: 
                   1728:     ['] noop IS resolve-warning 
1.52      jwilke   1729:   ;
1.1       anton    1730: 
                   1731: \ gexecute ghost,                                      01nov92py
                   1732: 
1.102     jwilke   1733: : is-forward   ( ghost -- )
                   1734:   colonmark, 0 (refered) ; \ compile space for call
                   1735: 
                   1736: : is-resolved   ( ghost -- )
                   1737:   >link @ colon, ; \ compile-call
                   1738: 
1.103     jwilke   1739: : (gexecute)   ( ghost -- )
                   1740:   dup >magic @ 
                   1741:   <fwd> = IF  is-forward  ELSE  is-resolved  THEN ;
                   1742: 
                   1743: : gexecute ( ghost -- )
                   1744: \  dup >magic @ <imm> = IF -1 ABORT" CROSS: gexecute on immediate word" THEN
                   1745:   (gexecute) ;
1.52      jwilke   1746: 
                   1747: : addr,  ( ghost -- )
1.103     jwilke   1748:   dup >magic @ <fwd> = IF  1 refered 0 T a, H ELSE >link @ T a, H THEN ;
1.52      jwilke   1749: 
                   1750: \ !! : ghost,     ghost  gexecute ;
1.1       anton    1751: 
                   1752: \ .unresolved                                          11may93jaw
                   1753: 
                   1754: variable ResolveFlag
                   1755: 
                   1756: \ ?touched                                             11may93jaw
                   1757: 
1.52      jwilke   1758: : ?touched ( ghost -- flag ) dup forward? swap >link @
1.1       anton    1759:                                0 <> and ;
                   1760: 
1.53      jwilke   1761: : .forwarddefs ( ghost -- )
1.103     jwilke   1762:   ."  appeared in:"
                   1763:   >link
                   1764:   BEGIN        @ dup
                   1765:   WHILE        cr 5 spaces
                   1766:        dup >ghost @ .ghost
                   1767:        ."  file " dup >file @ ?dup IF count type ELSE ." CON" THEN
                   1768:        ."  line " dup >line @ .dec
                   1769:   REPEAT 
                   1770:   drop ;
                   1771: 
                   1772: : ?resolved  ( ghost -- )
                   1773:   dup ?touched
                   1774:   IF   ResolveFlag on 
                   1775:        dup cr .ghost .forwarddefs
1.53      jwilke   1776:   ELSE         drop 
                   1777:   THEN ;
1.1       anton    1778: 
                   1779: : .unresolved  ( -- )
                   1780:   ResolveFlag off cr ." Unresolved: "
1.103     jwilke   1781:   ghost-list
1.1       anton    1782:   BEGIN @ dup
                   1783:   WHILE dup ?resolved
1.10      anton    1784:   REPEAT drop ResolveFlag @
                   1785:   IF
1.48      anton    1786:       -1 abort" Unresolved words!"
1.10      anton    1787:   ELSE
                   1788:       ." Nothing!"
                   1789:   THEN
                   1790:   cr ;
1.1       anton    1791: 
1.52      jwilke   1792: : .stats
                   1793:   base @ >r decimal
                   1794:   cr ." named Headers: " headers-named @ . 
                   1795:   r> base ! ;
                   1796: 
1.79      jwilke   1797: >MINIMAL
                   1798: 
                   1799: : .unresolved .unresolved ;
                   1800: 
1.1       anton    1801: >CROSS
                   1802: \ Header states                                        12dec92py
                   1803: 
1.102     jwilke   1804: \ : flag! ( 8b -- )   tlast @ dup >r T c@ xor r> c! H ;
1.90      pazsan   1805: bigendian [IF] 0 [ELSE] tcell 1- [THEN] Constant flag+
                   1806: : flag! ( w -- )   tlast @ flag+ + dup >r T c@ xor r> c! H ;
1.1       anton    1807: 
                   1808: VARIABLE ^imm
                   1809: 
                   1810: >TARGET
1.102     jwilke   1811: : immediate     40 flag!
1.18      pazsan   1812:                 ^imm @ @ dup <imm> = IF  drop  EXIT  THEN
1.1       anton    1813:                 <res> <> ABORT" CROSS: Cannot immediate a unresolved word"
                   1814:                 <imm> ^imm @ ! ;
1.102     jwilke   1815: : restrict      20 flag! ;
1.52      jwilke   1816: 
1.54      pazsan   1817: : isdoer       
                   1818: \G define a forth word as doer, this makes obviously only sence on
                   1819: \G forth processors such as the PSC1000
                   1820:                <do:> last-header-ghost @ >magic ! ;
1.1       anton    1821: >CROSS
                   1822: 
                   1823: \ Target Header Creation                               01nov92py
                   1824: 
1.103     jwilke   1825: : ht-lstring, ( addr count -- )
1.102     jwilke   1826:   dup T , H bounds  ?DO  I c@ T c, H  LOOP ;
                   1827: 
1.103     jwilke   1828: >TARGET
                   1829: : name,  ( "name" -- )  bl word count ht-lstring, X cfalign ;
1.1       anton    1830: : view,   ( -- ) ( dummy ) ;
1.52      jwilke   1831: >CROSS
1.1       anton    1832: 
1.25      pazsan   1833: \ Target Document Creation (goes to crossdoc.fd)       05jul95py
                   1834: 
1.55      pazsan   1835: s" ./doc/crossdoc.fd" r/w create-file throw value doc-file-id
1.25      pazsan   1836: \ contains the file-id of the documentation file
                   1837: 
1.40      pazsan   1838: : T-\G ( -- )
1.25      pazsan   1839:     source >in @ /string doc-file-id write-line throw
1.40      pazsan   1840:     postpone \ ;
1.25      pazsan   1841: 
1.39      pazsan   1842: Variable to-doc  to-doc on
1.25      pazsan   1843: 
                   1844: : cross-doc-entry  ( -- )
                   1845:     to-doc @ tlast @ 0<> and   \ not an anonymous (i.e. noname) header
                   1846:     IF
                   1847:        s" " doc-file-id write-line throw
                   1848:        s" make-doc " doc-file-id write-file throw
1.102     jwilke   1849: 
                   1850:        tlast @ >image count 1F and doc-file-id write-file throw
1.25      pazsan   1851:        >in @
                   1852:        [char] ( parse 2drop
                   1853:        [char] ) parse doc-file-id write-file throw
                   1854:        s"  )" doc-file-id write-file throw
                   1855:        [char] \ parse 2drop                                    
1.40      pazsan   1856:        T-\G
1.25      pazsan   1857:        >in !
1.39      pazsan   1858:     THEN ;
1.25      pazsan   1859: 
1.28      pazsan   1860: \ Target TAGS creation
                   1861: 
1.39      pazsan   1862: s" kernel.TAGS" r/w create-file throw value tag-file-id
1.28      pazsan   1863: \ contains the file-id of the tags file
                   1864: 
                   1865: Create tag-beg 2 c,  7F c, bl c,
                   1866: Create tag-end 2 c,  bl c, 01 c,
                   1867: Create tag-bof 1 c,  0C c,
                   1868: 
                   1869: 2variable last-loadfilename 0 0 last-loadfilename 2!
                   1870:            
                   1871: : put-load-file-name ( -- )
1.77      jwilke   1872:     sourcefilename last-loadfilename 2@ d<>
1.28      pazsan   1873:     IF
                   1874:        tag-bof count tag-file-id write-line throw
1.31      anton    1875:        sourcefilename 2dup
1.28      pazsan   1876:        tag-file-id write-file throw
                   1877:        last-loadfilename 2!
                   1878:        s" ,0" tag-file-id write-line throw
                   1879:     THEN ;
                   1880: 
                   1881: : cross-tag-entry  ( -- )
                   1882:     tlast @ 0<>        \ not an anonymous (i.e. noname) header
                   1883:     IF
                   1884:        put-load-file-name
                   1885:        source >in @ min tag-file-id write-file throw
                   1886:        tag-beg count tag-file-id write-file throw
1.77      jwilke   1887:        tlast @ >image count 1F and tag-file-id write-file throw
1.28      pazsan   1888:        tag-end count tag-file-id write-file throw
1.31      anton    1889:        base @ decimal sourceline# 0 <# #s #> tag-file-id write-file throw
1.28      pazsan   1890: \      >in @ 0 <# #s [char] , hold #> tag-file-id write-line throw
                   1891:        s" ,0" tag-file-id write-line throw
                   1892:        base !
                   1893:     THEN ;
                   1894: 
1.43      pazsan   1895: \ Check for words
                   1896: 
                   1897: Defer skip? ' false IS skip?
                   1898: 
1.103     jwilke   1899: : skipdef ( "name" -- )
1.79      jwilke   1900: \G skip definition of an undefined word in undef-words and
                   1901: \G all-words mode
1.103     jwilke   1902:     Ghost dup forward?
1.75      jwilke   1903:     IF  >magic <skip> swap !
                   1904:     ELSE drop THEN ;
                   1905: 
1.103     jwilke   1906: : tdefined? ( "name" -- flag ) 
                   1907:     Ghost undefined? 0= ;
1.75      jwilke   1908: 
1.103     jwilke   1909: : defined2? ( "name" -- flag ) 
1.75      jwilke   1910: \G return true for anything else than forward, even for <skip>
                   1911: \G that's what we want
1.103     jwilke   1912:     Ghost forward? 0= ;
1.43      pazsan   1913: 
1.103     jwilke   1914: : forced? ( "name" -- flag )
1.79      jwilke   1915: \G return ture if it is a foreced skip with defskip
1.103     jwilke   1916:     Ghost >magic @ <skip> = ;
1.79      jwilke   1917: 
1.43      pazsan   1918: : needed? ( -- flag ) \ name
1.48      anton    1919: \G returns a false flag when
                   1920: \G a word is not defined
                   1921: \G a forward reference exists
                   1922: \G so the definition is not skipped!
                   1923:     bl word gfind
1.75      jwilke   1924:     IF dup undefined?
1.48      anton    1925:        nip
                   1926:        0=
                   1927:     ELSE  drop true  THEN ;
1.43      pazsan   1928: 
1.44      pazsan   1929: : doer? ( -- flag ) \ name
1.103     jwilke   1930:     Ghost >magic @ <do:> = ;
1.44      pazsan   1931: 
1.43      pazsan   1932: : skip-defs ( -- )
                   1933:     BEGIN  refill  WHILE  source -trailing nip 0= UNTIL  THEN ;
                   1934: 
1.28      pazsan   1935: \ Target header creation
                   1936: 
1.54      pazsan   1937: Variable NoHeaderFlag
                   1938: NoHeaderFlag off
1.1       anton    1939: 
1.54      pazsan   1940: : 0.r ( n1 n2 -- ) 
                   1941:     base @ >r hex 
                   1942:     0 swap <# 0 ?DO # LOOP #> type 
                   1943:     r> base ! ;
1.84      jwilke   1944: 
                   1945: : .sym ( adr len -- )
                   1946: \G escapes / and \ to produce sed output
1.52      jwilke   1947:   bounds 
                   1948:   DO I c@ dup
1.77      jwilke   1949:        CASE    [char] / OF drop ." \/" ENDOF
                   1950:                [char] \ OF drop ." \\" ENDOF
1.52      jwilke   1951:                dup OF emit ENDOF
                   1952:        ENDCASE
1.54      pazsan   1953:     LOOP ;
1.52      jwilke   1954: 
1.103     jwilke   1955: Defer setup-execution-semantics
                   1956: 0 Value lastghost
                   1957: 
                   1958: : (THeader ( "name" -- ghost )
1.54      pazsan   1959:     \  >in @ bl word count type 2 spaces >in !
                   1960:     \ wordheaders will always be compiled to rom
                   1961:     switchrom
                   1962:     \ build header in target
                   1963:     NoHeaderFlag @
                   1964:     IF  NoHeaderFlag off
                   1965:     ELSE
                   1966:        T align H view,
1.78      jwilke   1967:        tlast @ dup 0> IF tcell - THEN T A, H  there tlast !
1.54      pazsan   1968:        1 headers-named +!      \ Statistic
                   1969:        >in @ T name, H >in !
                   1970:     THEN
                   1971:     T cfalign here H tlastcfa !
1.84      jwilke   1972:     \ Old Symbol table sed-script
1.54      pazsan   1973: \    >in @ cr ." sym:s/CFA=" there 4 0.r ." /"  bl word count .sym ." /g" cr >in !
1.103     jwilke   1974:     HeaderGhost
1.84      jwilke   1975:     \ output symbol table to extra file
                   1976:     [ [IFDEF] fd-symbol-table ]
                   1977:       base @ hex there s>d <# 8 0 DO # LOOP #> fd-symbol-table write-file throw base !
                   1978:       s" :" fd-symbol-table write-file throw
                   1979:       dup >ghostname fd-symbol-table write-line throw
                   1980:     [ [THEN] ]
1.103     jwilke   1981:     dup Last-Header-Ghost ! dup to lastghost
1.54      pazsan   1982:     dup >magic ^imm !     \ a pointer for immediate
1.102     jwilke   1983:     80 flag!
1.103     jwilke   1984:     cross-doc-entry cross-tag-entry 
                   1985:     setup-execution-semantics
                   1986:     ;
1.1       anton    1987: 
1.52      jwilke   1988: \ this is the resolver information from ":"
                   1989: \ resolving is done by ";"
1.103     jwilke   1990: Variable ;Resolve 1 cells allot
                   1991: 
                   1992: : hereresolve ( ghost -- )
                   1993:   there resolve 0 ;Resolve ! ;
1.1       anton    1994: 
1.11      pazsan   1995: : Theader  ( "name" -- ghost )
1.103     jwilke   1996:   (THeader dup hereresolve ;
                   1997: 
                   1998: Variable aprim-nr -20 aprim-nr !
                   1999: 
                   2000: : copy-execution-semantics ( ghost-from ghost-dest -- )
                   2001:   >r
                   2002:   dup >exec @ r@ >exec !
                   2003:   dup >exec2 @ r@ >exec2 !
                   2004:   dup >exec-compile @ r@ >exec-compile !
                   2005:   dup >ghost-xt @ r@ >ghost-xt !
                   2006:   dup >created @ r@ >created !
                   2007:   rdrop drop ;
1.1       anton    2008: 
                   2009: >TARGET
1.103     jwilke   2010: 
1.1       anton    2011: : Alias    ( cfa -- ) \ name
1.103     jwilke   2012:   >in @ skip? IF  2drop  EXIT  THEN  >in !
                   2013:   (THeader ( S xt ghost )
                   2014:   2dup swap gdiscover 0= ABORT" missing" swap copy-execution-semantics
                   2015:   over resolve T A, H 80 flag! ;
                   2016: 
                   2017: Variable last-prim-ghost
                   2018: 0 last-prim-ghost !
                   2019: 
                   2020: : asmprimname, ( ghost -- : name ) 
                   2021:   dup last-prim-ghost !
                   2022:   >r
                   2023:   here bl word count string, r@ >asm-name !
                   2024:   aprim-nr @ r> >asm-dummyaddr ! ;
                   2025: 
                   2026: Defer setup-prim-semantics
                   2027: 
                   2028: : aprim   ( -- ) 
                   2029:   THeader -1 aprim-nr +! aprim-nr @ T A, H
                   2030:   asmprimname, 
                   2031:   setup-prim-semantics ;
                   2032: 
                   2033: : aprim:   ( -- ) 
                   2034:   -1 aprim-nr +! aprim-nr @
                   2035:   Ghost tuck swap resolve <do:> swap tuck >magic !
                   2036:   asmprimname, ;
                   2037: 
1.42      pazsan   2038: : Alias:   ( cfa -- ) \ name
1.103     jwilke   2039:   >in @ skip? IF  2drop  EXIT  THEN  >in !
                   2040:   dup 0< s" prims" T $has? H 0= and
                   2041:   IF
                   2042:       .sourcepos ." needs doer: " >in @ bl word count type >in ! cr
                   2043:   THEN
                   2044:   Ghost tuck swap resolve <do:> swap >magic ! ;
1.64      pazsan   2045: 
                   2046: Variable prim#
                   2047: : first-primitive ( n -- )  prim# ! ;
                   2048: : Primitive  ( -- ) \ name
1.103     jwilke   2049:   >in @ skip? IF  2drop  EXIT  THEN  >in !
                   2050:   dup 0< s" prims" T $has? H 0= and
                   2051:   IF
                   2052:      .sourcepos ." needs prim: " >in @ bl word count type >in ! cr
                   2053:   THEN
                   2054:   prim# @ (THeader ( S xt ghost )
                   2055:   over resolve T A, H 80 flag!
                   2056:   -1 prim# +! ;
1.1       anton    2057: >CROSS
                   2058: 
                   2059: \ Conditionals and Comments                            11may93jaw
                   2060: 
1.103     jwilke   2061: \G saves the existing cond action, this is used for redefining in
                   2062: \G instant
                   2063: Variable cond-xt-old
                   2064: 
                   2065: : cond-target ( -- )
                   2066: \G Compiles semantic of redefined cond into new one
                   2067:   cond-xt-old @ compile, ; immediate restrict
                   2068: 
1.1       anton    2069: : ;Cond
                   2070:   postpone ;
                   2071:   swap ! ;  immediate
                   2072: 
1.103     jwilke   2073: : Cond: ( "name" -- ) 
                   2074: \g defines a conditional or another word that must
                   2075: \g be executed directly while compiling
                   2076: \g these words have no interpretative semantics by default
                   2077:   Ghost
                   2078:   >exec-compile
                   2079:   dup @ cond-xt-old !
1.1       anton    2080:   :NONAME ;
                   2081: 
                   2082: 
                   2083: : Comment ( -- )
1.103     jwilke   2084:   >in @ Ghost swap >in ! ' swap 
                   2085:   2dup >exec-compile ! >exec ! ;
1.1       anton    2086: 
                   2087: Comment (       Comment \
                   2088: 
                   2089: \ compile                                              10may93jaw
                   2090: 
1.103     jwilke   2091: : compile  ( "name" -- ) \ name
                   2092: \  bl word gfind 0= ABORT" CROSS: Can't compile "
                   2093:   ghost
                   2094:   dup >exec-compile @ ?dup
                   2095:   IF    nip compile,
                   2096:   ELSE  postpone literal postpone gexecute  THEN ;  immediate restrict
                   2097:             
1.52      jwilke   2098: >TARGET
                   2099: 
                   2100: : '  ( -- cfa ) 
                   2101: \ returns the target-cfa of a ghost
                   2102:   bl word gfind 0= ABORT" CROSS: Ghost don't exists"
                   2103:   ghost>cfa ;
                   2104: 
1.103     jwilke   2105: \ FIXME: this works for the current use cases, but is not
                   2106: \ in all cases correct ;-) 
                   2107: : comp' X ' 0 ;
                   2108: 
1.52      jwilke   2109: Cond: [']  T ' H alit, ;Cond
                   2110: 
                   2111: >CROSS
                   2112: 
                   2113: : [T']
                   2114: \ returns the target-cfa of a ghost, or compiles it as literal
                   2115:   postpone [G'] state @ IF postpone ghost>cfa ELSE ghost>cfa THEN ; immediate
1.42      pazsan   2116: 
1.52      jwilke   2117: \ \ threading modell                                   13dec92py
                   2118: \ modularized                                          14jun97jaw
                   2119: 
                   2120: : fillcfa   ( usedcells -- )
1.78      jwilke   2121:   T cells H xt>body swap - 0 ?DO 0 X c, tchar +LOOP ;
1.52      jwilke   2122: 
1.103     jwilke   2123: : (>body)   ( cfa -- pfa ) 
                   2124:   xt>body + ;                                  ' (>body) plugin-of t>body
1.52      jwilke   2125: 
1.103     jwilke   2126: : (doer,)   ( ghost -- ) 
                   2127:   addr, 1 fillcfa ;                            ' (doer,) plugin-of doer,
1.52      jwilke   2128: 
1.103     jwilke   2129: : (docol,)  ( -- ) [G'] :docol (doer,) ;       ' (docol,) plugin-of docol,
1.52      jwilke   2130: 
                   2131: : (doprim,) ( -- )
1.103     jwilke   2132:   there xt>body + ca>native T a, H 1 fillcfa ; ' (doprim,) plugin-of doprim,
1.52      jwilke   2133: 
                   2134: : (doeshandler,) ( -- ) 
1.103     jwilke   2135:   T cfalign H compile :doesjump T 0 , H ;      ' (doeshandler,) plugin-of doeshandler,
1.52      jwilke   2136: 
                   2137: : (dodoes,) ( does-action-ghost -- )
                   2138:   ]comp [G'] :dodoes gexecute comp[
                   2139:   addr,
1.103     jwilke   2140:   \ the relocator in the c engine, does not like the
                   2141:   \ does-address to marked for relocation
                   2142:   [ T e? ec H 0= [IF] ] T here H tcell - reloff [ [THEN] ]
                   2143:   2 fillcfa ;          ' (dodoes,) plugin-of dodoes,
1.52      jwilke   2144: 
1.103     jwilke   2145: : (lit,) ( n -- )   compile lit T  ,  H ;      ' (lit,) plugin-of lit,
1.52      jwilke   2146: 
1.67      jwilke   2147: \ if we dont produce relocatable code alit, defaults to lit, jaw
1.84      jwilke   2148: \ this is just for convenience, so we don't have to define alit,
                   2149: \ seperately for embedded systems....
                   2150: T has? relocate H
1.67      jwilke   2151: [IF]
1.103     jwilke   2152: : (alit,) ( n -- )  compile lit T  a, H ;      ' (alit,) plugin-of alit,
1.67      jwilke   2153: [ELSE]
1.103     jwilke   2154: : (alit,) ( n -- )  lit, ;                     ' (alit,) plugin-of alit,
1.67      jwilke   2155: [THEN]
1.52      jwilke   2156: 
1.103     jwilke   2157: : (fini,)         compile ;s ;                 ' (fini,) plugin-of fini,
1.42      pazsan   2158: 
1.43      pazsan   2159: [IFUNDEF] (code) 
                   2160: Defer (code)
                   2161: Defer (end-code)
                   2162: [THEN]
                   2163: 
1.1       anton    2164: >TARGET
1.43      pazsan   2165: : Code
1.52      jwilke   2166:   defempty?
1.48      anton    2167:   (THeader there resolve
1.53      jwilke   2168:   [ T e? prims H 0= [IF] T e? ITC H [ELSE] true [THEN] ] [IF]
1.52      jwilke   2169:   doprim, 
1.48      anton    2170:   [THEN]
                   2171:   depth (code) ;
1.43      pazsan   2172: 
                   2173: : Code:
1.52      jwilke   2174:   defempty?
1.103     jwilke   2175:     Ghost dup there ca>native resolve  <do:> swap >magic !
1.43      pazsan   2176:     depth (code) ;
                   2177: 
                   2178: : end-code
1.52      jwilke   2179:     (end-code)
1.43      pazsan   2180:     depth ?dup IF   1- <> ABORT" CROSS: Stack changed"
                   2181:     ELSE true ABORT" CROSS: Stack empty" THEN
1.52      jwilke   2182:     ;
1.14      anton    2183: 
1.1       anton    2184: >CROSS
1.52      jwilke   2185: 
1.1       anton    2186: \ tLiteral                                             12dec92py
                   2187: 
                   2188: >TARGET
1.40      pazsan   2189: Cond: \G  T-\G ;Cond
                   2190: 
1.103     jwilke   2191: Cond:  Literal ( n -- )   lit, ;Cond
                   2192: Cond: ALiteral ( n -- )   alit, ;Cond
1.1       anton    2193: 
                   2194: : Char ( "<char>" -- )  bl word char+ c@ ;
1.103     jwilke   2195: Cond: [Char]   ( "<char>" -- )  Char  lit, ;Cond
                   2196: 
1.104   ! jwilke   2197: tchar 1 = [IF]
        !          2198: Cond: chars ;Cond 
        !          2199: [THEN]
1.1       anton    2200: 
1.43      pazsan   2201: \ some special literals                                        27jan97jaw
                   2202: 
1.52      jwilke   2203: \ !! Known Bug: Special Literals and plug-ins work only correct
1.102     jwilke   2204: \ on 16 and 32 Bit Targets and 32 Bit Hosts!
1.52      jwilke   2205: 
1.43      pazsan   2206: Cond: MAXU
1.102     jwilke   2207:   tcell 1 cells u> 
                   2208:   IF   compile lit tcell 0 ?DO FF T c, H LOOP 
                   2209:   ELSE ffffffff lit, THEN
1.52      jwilke   2210:   ;Cond
1.43      pazsan   2211: 
                   2212: Cond: MINI
1.102     jwilke   2213:   tcell 1 cells u>
                   2214:   IF   compile lit bigendian 
                   2215:        IF      80 T c, H tcell 1 ?DO 0 T c, H LOOP 
                   2216:        ELSE    tcell 1 ?DO 0 T c, H LOOP 80 T c, H
                   2217:        THEN
                   2218:   ELSE tcell 2 = IF 8000 ELSE 80000000 THEN lit, THEN
1.52      jwilke   2219:   ;Cond
1.43      pazsan   2220:  
                   2221: Cond: MAXI
1.102     jwilke   2222:  tcell 1 cells u>
                   2223:  IF    compile lit bigendian 
                   2224:        IF      7F T c, H tcell 1 ?DO FF T c, H LOOP
                   2225:        ELSE    tcell 1 ?DO FF T c, H LOOP 7F T c, H
                   2226:        THEN
                   2227:  ELSE  tcell 2 = IF 7fff ELSE 7fffffff THEN lit, THEN
1.43      pazsan   2228:  ;Cond
                   2229: 
1.1       anton    2230: >CROSS
                   2231: \ Target compiling loop                                12dec92py
                   2232: \ ">tib trick thrown out                               10may93jaw
                   2233: \ number? defined at the top                           11may93jaw
1.77      jwilke   2234: \ replaced >in by save-input                           
                   2235: 
                   2236: : discard 0 ?DO drop LOOP ;
1.1       anton    2237: 
                   2238: \ compiled word might leave items on stack!
1.77      jwilke   2239: : tcom ( x1 .. xn n name -- )
                   2240: \  dup count type space
1.103     jwilke   2241:   gfind 
                   2242:   IF    >r ( discard saved input state ) discard r>
                   2243:        dup >exec-compile @ ?dup
                   2244:         IF   nip execute-exec-compile ELSE gexecute  THEN 
1.77      jwilke   2245:        EXIT 
                   2246:   THEN
                   2247:   number? dup  
                   2248:   IF   0> IF swap lit,  THEN  lit, discard
1.103     jwilke   2249:   ELSE 2drop restore-input throw Ghost gexecute THEN  ;
1.1       anton    2250: 
                   2251: >TARGET
                   2252: \ : ; DOES>                                            13dec92py
                   2253: \ ]                                                     9may93py/jaw
                   2254: 
1.103     jwilke   2255: : ] 
1.54      pazsan   2256:     Compiling comp-state !
1.103     jwilke   2257:     \ if we have a state in target, change it with the compile state
                   2258:     [G'] state dup undefined? 0= IF >ghost-xt @ execute X on ELSE drop THEN
1.1       anton    2259:     BEGIN
1.77      jwilke   2260:         BEGIN save-input bl word
                   2261:               dup c@ 0= WHILE drop discard refill 0=
1.1       anton    2262:               ABORT" CROSS: End of file while target compiling"
                   2263:         REPEAT
                   2264:         tcom
1.103     jwilke   2265:         compiling? 0=
1.1       anton    2266:     UNTIL ;
                   2267: 
                   2268: \ by the way: defining a second interpreter (a compiler-)loop
                   2269: \             is not allowed if a system should be ans conform
                   2270: 
                   2271: : : ( -- colon-sys ) \ Name
1.52      jwilke   2272:   defempty?
                   2273:   constflag off \ don't let this flag work over colon defs
                   2274:                \ just to go sure nothing unwanted happens
1.43      pazsan   2275:   >in @ skip? IF  drop skip-defs  EXIT  THEN  >in !
1.1       anton    2276:   (THeader ;Resolve ! there ;Resolve cell+ !
1.103     jwilke   2277:    docol, ]comp  colon-start depth T ] H ;
1.1       anton    2278: 
1.37      pazsan   2279: : :noname ( -- colon-sys )
1.103     jwilke   2280:   X cfalign
                   2281:   \ FIXME: cleanup!!!!!!!!
                   2282:   \ idtentical to : with dummy ghost?!
                   2283:   here ghostheader dup ;Resolve ! dup last-header-ghost ! to lastghost
                   2284:   there ;Resolve cell+ !
                   2285:   there docol, ]comp 
                   2286:   colon-start depth T ] H ;
1.37      pazsan   2287: 
1.103     jwilke   2288: Cond: EXIT ( -- )   compile ;S  ;Cond
1.6       anton    2289: 
                   2290: Cond: ?EXIT ( -- ) 1 abort" CROSS: using ?exit" ;Cond
1.2       pazsan   2291: 
1.52      jwilke   2292: >CROSS
                   2293: : LastXT ;Resolve @ 0= abort" CROSS: no definition for LastXT"
                   2294:          ;Resolve cell+ @ ;
                   2295: 
                   2296: >TARGET
                   2297: 
1.103     jwilke   2298: Cond: recurse ( -- ) Last-Header-Ghost @ gexecute ;Cond
1.52      jwilke   2299: 
1.103     jwilke   2300: Cond: ; ( -- ) 
1.1       anton    2301:                depth ?dup IF   1- <> ABORT" CROSS: Stack changed"
                   2302:                           ELSE true ABORT" CROSS: Stack empty" THEN
1.103     jwilke   2303:                colon-end
1.52      jwilke   2304:                fini,
                   2305:                comp[
1.1       anton    2306:                ;Resolve @
1.102     jwilke   2307:                IF ;Resolve @ ;Resolve cell+ @ resolve THEN
1.103     jwilke   2308:     [G'] state dup undefined? 0= IF >ghost-xt @ execute X off ELSE drop THEN
                   2309:                Interpreting comp-state !
1.1       anton    2310:                ;Cond
1.103     jwilke   2311: Cond: [  
                   2312:   \ if we have a state in target, change it with the compile state
                   2313:     [G'] state dup undefined? 0= IF >ghost-xt @ execute X off ELSE drop THEN
                   2314: \  [G'] state dup undefined? 0= IF ghost>cfa X >body X off ELSE drop THEN
                   2315:   Interpreting comp-state ! ;Cond
1.1       anton    2316: 
                   2317: >CROSS
1.54      pazsan   2318: 
                   2319: Create GhostDummy ghostheader
                   2320: <res> GhostDummy >magic !
                   2321: 
1.52      jwilke   2322: : !does ( does-action -- )
                   2323: \ !! zusammenziehen und dodoes, machen!
1.54      pazsan   2324:     tlastcfa @ [G'] :dovar killref
                   2325: \    tlastcfa @ dup there >r tdp ! compile :dodoes r> tdp ! T cell+ ! H ;
1.52      jwilke   2326: \ !! geht so nicht, da dodoes, ghost will!
1.54      pazsan   2327:     GhostDummy >link ! GhostDummy 
                   2328:     tlastcfa @ >tempdp dodoes, tempdp> ;
1.1       anton    2329: 
1.103     jwilke   2330: 
                   2331: Defer instant-compile-does>-hook
                   2332: Defer instant-interpret-does>-hook
                   2333: 
                   2334: : resolve-does>-part ( -- )
                   2335: \ resolve words made by builders
                   2336:   Last-Header-Ghost @ >do:ghost @ ?dup IF there resolve THEN ;
                   2337: 
1.1       anton    2338: >TARGET
1.103     jwilke   2339: Cond: DOES>
                   2340:         compile (does>) doeshandler,
                   2341:         resolve-does>-part
                   2342: \        instant-compile-does>-hook
1.1       anton    2343:         ;Cond
1.103     jwilke   2344: 
                   2345: : DOES> switchrom doeshandler, T here H !does 
                   2346:   instant-interpret-does>-hook
                   2347:   depth T ] H ;
1.1       anton    2348: 
                   2349: >CROSS
                   2350: \ Creation                                             01nov92py
                   2351: 
                   2352: \ Builder                                               11may93jaw
                   2353: 
1.102     jwilke   2354: : Builder    ( Create-xt do:-xt "name" -- )
1.52      jwilke   2355: \ builds up a builder in current vocabulary
                   2356: \ create-xt is executed when word is interpreted
                   2357: \ do:-xt is executet when the created word from builder is executed
                   2358: \ for do:-xt an additional entry after the normal ghost-enrys is used
                   2359: 
1.102     jwilke   2360:   Make-Ghost           ( Create-xt do:-xt ghost )
1.103     jwilke   2361:   dup >created on
1.102     jwilke   2362:   rot swap             ( do:-xt Create-xt ghost )
1.103     jwilke   2363:   tuck >exec ! >do:ghost ! ;
1.102     jwilke   2364: \  rot swap >exec dup @ ['] NoExec <>
                   2365: \  IF 2drop ELSE ! THEN , ;
1.1       anton    2366: 
1.52      jwilke   2367: : gdoes,  ( ghost -- )
                   2368: \ makes the codefield for a word that is built
1.103     jwilke   2369:   >do:ghost @ dup undefined? 0=
1.52      jwilke   2370:   IF
1.42      pazsan   2371:        dup >magic @ <do:> =
1.54      pazsan   2372:        IF       doer, 
                   2373:        ELSE    dodoes,
                   2374:        THEN
                   2375:        EXIT
1.52      jwilke   2376:   THEN
                   2377: \  compile :dodoes gexecute
                   2378: \  T here H tcell - reloff 
1.54      pazsan   2379:   2 refered 
                   2380:   0 fillcfa
                   2381:   ;
1.1       anton    2382: 
1.103     jwilke   2383: : takeover-x-semantics ( S constructor-ghost new-ghost -- )
                   2384: \g stores execution semantic in the built word
                   2385: \g if the word already has a semantic (concerns S", IS, .", DOES>)
                   2386: \g then keep it
                   2387:    swap >do:ghost @ >exec @ swap >exec2 ! ;
                   2388: \  >exec dup @ ['] NoExec = 
                   2389: \  IF swap >do:ghost @ >exec @ swap ! ELSE 2drop THEN ;
                   2390: 
1.52      jwilke   2391: : TCreate ( <name> -- )
                   2392:   create-forward-warn
                   2393:   IF ['] reswarn-forward IS resolve-warning THEN
1.103     jwilke   2394:   executed-ghost @ (Theader
                   2395:   dup >created on
                   2396:   2dup takeover-x-semantics hereresolve gdoes, ;
1.52      jwilke   2397: 
                   2398: : RTCreate ( <name> -- )
                   2399: \ creates a new word with code-field in ram
                   2400:   create-forward-warn
                   2401:   IF ['] reswarn-forward IS resolve-warning THEN
                   2402:   \ make Alias
1.103     jwilke   2403:   executed-ghost @ (THeader 
                   2404:   dup >created on
                   2405:   2dup takeover-x-semantics
                   2406:   there 0 T a, H 80 flag!
                   2407:   \ store poiter to code-field
1.52      jwilke   2408:   switchram T cfalign H
                   2409:   there swap T ! H
                   2410:   there tlastcfa ! 
1.103     jwilke   2411:   hereresolve gdoes, ;
1.1       anton    2412: 
                   2413: : Build:  ( -- [xt] [colon-sys] )
1.52      jwilke   2414:   :noname postpone TCreate ;
                   2415: 
                   2416: : BuildSmart:  ( -- [xt] [colon-sys] )
                   2417:   :noname
1.53      jwilke   2418:   [ T has? rom H [IF] ]
1.52      jwilke   2419:   postpone RTCreate
                   2420:   [ [ELSE] ]
                   2421:   postpone TCreate 
                   2422:   [ [THEN] ] ;
1.1       anton    2423: 
                   2424: : gdoes>  ( ghost -- addr flag )
1.52      jwilke   2425:   executed-ghost @
1.103     jwilke   2426: \  compiling? ABORT" CROSS: Executing gdoes> while compiling"
                   2427: \ ?! compiling? IF  gexecute true EXIT  THEN
                   2428:   >link @ X >body ( false ) ;
1.1       anton    2429: 
                   2430: \ DO: ;DO                                               11may93jaw
                   2431: \ changed to ?EXIT                                      10may93jaw
                   2432: 
1.102     jwilke   2433: : DO:     ( -- addr [xt] [colon-sys] )
1.1       anton    2434:   here ghostheader
1.103     jwilke   2435:   :noname postpone gdoes> ( postpone ?EXIT ) ;
1.1       anton    2436: 
1.102     jwilke   2437: : by:     ( -- addr [xt] [colon-sys] ) \ name
1.103     jwilke   2438:   Ghost
                   2439:   :noname postpone gdoes> ( postpone ?EXIT ) ;
1.42      pazsan   2440: 
1.102     jwilke   2441: : ;DO ( addr [xt] [colon-sys] -- addr )
1.1       anton    2442:   postpone ;    ( S addr xt )
                   2443:   over >exec ! ; immediate
                   2444: 
1.102     jwilke   2445: : by      ( -- addr ) \ Name
1.103     jwilke   2446:   Ghost >do:ghost @ ;
1.1       anton    2447: 
                   2448: >TARGET
                   2449: \ Variables and Constants                              05dec92py
                   2450: 
1.52      jwilke   2451: Build:  ( n -- ) ;
1.103     jwilke   2452: by: :docon ( target-body-addr -- n ) T @ H ;DO
1.52      jwilke   2453: Builder (Constant)
                   2454: 
                   2455: Build:  ( n -- ) T , H ;
                   2456: by (Constant)
                   2457: Builder Constant
                   2458: 
                   2459: Build:  ( n -- ) T A, H ;
                   2460: by (Constant)
                   2461: Builder AConstant
                   2462: 
                   2463: Build:  ( d -- ) T , , H ;
                   2464: DO: ( ghost -- d ) T dup cell+ @ swap @ H ;DO
                   2465: Builder 2Constant
                   2466: 
                   2467: BuildSmart: ;
1.103     jwilke   2468: by: :dovar ( target-body-addr -- addr ) ;DO
1.1       anton    2469: Builder Create
                   2470: 
1.53      jwilke   2471: T has? rom H [IF]
1.103     jwilke   2472: Build: ( -- ) T here 0 A, H switchram T align here swap ! 0 , H ( switchrom ) ;
1.52      jwilke   2473: by (Constant)
                   2474: Builder Variable
                   2475: [ELSE]
1.1       anton    2476: Build: T 0 , H ;
                   2477: by Create
                   2478: Builder Variable
1.52      jwilke   2479: [THEN]
1.1       anton    2480: 
1.53      jwilke   2481: T has? rom H [IF]
1.103     jwilke   2482: Build: ( -- ) T here 0 A, H switchram T align here swap ! 0 , 0 , H ( switchrom ) ;
1.54      pazsan   2483: by (Constant)
                   2484: Builder 2Variable
                   2485: [ELSE]
                   2486: Build: T 0 , 0 , H ;
                   2487: by Create
                   2488: Builder 2Variable
                   2489: [THEN]
                   2490: 
                   2491: T has? rom H [IF]
1.103     jwilke   2492: Build: ( -- ) T here 0 A, H switchram T align here swap ! 0 A, H ( switchrom ) ;
1.52      jwilke   2493: by (Constant)
                   2494: Builder AVariable
                   2495: [ELSE]
1.1       anton    2496: Build: T 0 A, H ;
                   2497: by Create
                   2498: Builder AVariable
1.52      jwilke   2499: [THEN]
1.1       anton    2500: 
1.3       pazsan   2501: \ User variables                                       04may94py
                   2502: 
                   2503: >CROSS
1.78      jwilke   2504: 
1.3       pazsan   2505: Variable tup  0 tup !
                   2506: Variable tudp 0 tudp !
1.78      jwilke   2507: 
1.3       pazsan   2508: : u,  ( n -- udp )
                   2509:   tup @ tudp @ + T  ! H
1.19      pazsan   2510:   tudp @ dup T cell+ H tudp ! ;
1.78      jwilke   2511: 
1.3       pazsan   2512: : au, ( n -- udp )
                   2513:   tup @ tudp @ + T A! H
1.19      pazsan   2514:   tudp @ dup T cell+ H tudp ! ;
1.78      jwilke   2515: 
1.3       pazsan   2516: >TARGET
                   2517: 
1.78      jwilke   2518: Build: 0 u, X , ;
                   2519: by: :douser ( ghost -- up-addr )  X @ tup @ + ;DO
1.1       anton    2520: Builder User
                   2521: 
1.78      jwilke   2522: Build: 0 u, X , 0 u, drop ;
1.3       pazsan   2523: by User
1.1       anton    2524: Builder 2User
                   2525: 
1.78      jwilke   2526: Build: 0 au, X , ;
1.3       pazsan   2527: by User
1.1       anton    2528: Builder AUser
                   2529: 
1.52      jwilke   2530: BuildSmart: T , H ;
1.44      pazsan   2531: by (Constant)
1.1       anton    2532: Builder Value
                   2533: 
1.52      jwilke   2534: BuildSmart: T A, H ;
1.44      pazsan   2535: by (Constant)
1.32      pazsan   2536: Builder AValue
                   2537: 
1.103     jwilke   2538: Defer texecute
                   2539: 
1.52      jwilke   2540: BuildSmart:  ( -- ) [T'] noop T A, H ;
1.103     jwilke   2541: by: :dodefer ( ghost -- ) X @ texecute ;DO
1.1       anton    2542: Builder Defer
1.37      pazsan   2543: 
1.78      jwilke   2544: Build: ( inter comp -- ) swap T immediate A, A, H ;
1.37      pazsan   2545: DO: ( ghost -- ) ABORT" CROSS: Don't execute" ;DO
1.38      anton    2546: Builder interpret/compile:
1.24      pazsan   2547: 
                   2548: \ Sturctures                                           23feb95py
                   2549: 
                   2550: >CROSS
                   2551: : nalign ( addr1 n -- addr2 )
                   2552: \ addr2 is the aligned version of addr1 wrt the alignment size n
                   2553:  1- tuck +  swap invert and ;
                   2554: >TARGET
                   2555: 
1.44      pazsan   2556: Build: ;
                   2557: by: :dofield T @ H + ;DO
                   2558: Builder (Field)
                   2559: 
1.51      anton    2560: Build: ( align1 offset1 align size "name" --  align2 offset2 )
                   2561:     rot dup T , H ( align1 align size offset1 )
                   2562:     + >r nalign r> ;
1.44      pazsan   2563: by (Field)
1.24      pazsan   2564: Builder Field
                   2565: 
1.51      anton    2566: : struct  T 1 chars 0 H ;
1.24      pazsan   2567: : end-struct  T 2Constant H ;
                   2568: 
1.52      jwilke   2569: : cell% ( n -- size align )
1.51      anton    2570:     T 1 cells H dup ;
1.88      pazsan   2571: 
1.102     jwilke   2572: 
1.103     jwilke   2573: 
1.91      pazsan   2574: Build: ( m v -- m' v )  dup T , cell+ H ;
1.88      pazsan   2575: DO:  abort" Not in cross mode" ;DO
                   2576: Builder input-method
                   2577: 
                   2578: Build: ( m v size -- m v' )  over T , H + ;
                   2579: DO:  abort" Not in cross mode" ;DO
                   2580: Builder input-var
1.24      pazsan   2581: 
1.102     jwilke   2582: 
                   2583: 
1.103     jwilke   2584: 
1.52      jwilke   2585: \ structural conditionals                              17dec92py
                   2586: 
                   2587: >CROSS
1.103     jwilke   2588: : (ncontrols?) ( n -- ) 
                   2589: \g We expect n open control structures
                   2590:   depth over u<= 
                   2591:   ABORT" CROSS: unstructured, stack underflow"
                   2592:   0 ?DO I pick 0= 
                   2593:         ABORT" CROSS: unstructured" 
                   2594:   LOOP ;                                       ' (ncontrols?) plugin-of ncontrols?
                   2595: 
                   2596: \ : ?struc      ( flag -- )       ABORT" CROSS: unstructured " ;
                   2597: \ : sys?        ( sys -- sys )    dup 0= ?struc ;
                   2598: 
1.52      jwilke   2599: : >mark       ( -- sys )        T here  ( dup ." M" hex. ) 0 , H ;
                   2600: 
1.78      jwilke   2601: : branchoffset ( src dest -- )  - tchar / ; \ ?? jaw
1.52      jwilke   2602: 
1.78      jwilke   2603: : >resolve    ( sys -- )        
                   2604:        X here ( dup ." >" hex. ) over branchoffset swap X ! ;
1.52      jwilke   2605: 
1.78      jwilke   2606: : <resolve    ( sys -- )
                   2607:        X here ( dup ." <" hex. ) branchoffset X , ;
1.52      jwilke   2608: 
1.78      jwilke   2609: :noname compile branch X here branchoffset X , ;
1.54      pazsan   2610:   IS branch, ( target-addr -- )
1.78      jwilke   2611: :noname compile ?branch X here branchoffset X , ;
1.54      pazsan   2612:   IS ?branch, ( target-addr -- )
                   2613: :noname compile branch T here 0 , H ;
                   2614:   IS branchmark, ( -- branchtoken )
                   2615: :noname compile ?branch T here 0 , H ;
                   2616:   IS ?branchmark, ( -- branchtoken )
                   2617: :noname T here 0 , H ;
                   2618:   IS ?domark, ( -- branchtoken )
1.78      jwilke   2619: :noname dup X @ ?struc X here over branchoffset swap X ! ;
1.54      pazsan   2620:   IS branchtoresolve, ( branchtoken -- )
1.78      jwilke   2621: :noname branchto, X here ;
1.54      pazsan   2622:   IS branchtomark, ( -- target-addr )
1.52      jwilke   2623: 
                   2624: >TARGET
                   2625: 
                   2626: \ Structural Conditionals                              12dec92py
                   2627: 
1.103     jwilke   2628: \ CLEANUP Cond: BUT       sys? swap ;Cond
                   2629: \ CLEANUP Cond: YET       sys? dup ;Cond
1.52      jwilke   2630: 
                   2631: >CROSS
                   2632: 
1.78      jwilke   2633: Variable tleavings 0 tleavings !
1.52      jwilke   2634: 
1.54      pazsan   2635: : (done) ( addr -- )
                   2636:     tleavings @
                   2637:     BEGIN  dup
                   2638:     WHILE
                   2639:        >r dup r@ cell+ @ \ address of branch
                   2640:        u> 0=      \ lower than DO?     
                   2641:     WHILE
                   2642:        r@ 2 cells + @ \ branch token
                   2643:        branchtoresolve,
                   2644:        r@ @ r> free throw
                   2645:     REPEAT  r>  THEN
                   2646:     tleavings ! drop ;
                   2647: 
1.53      jwilke   2648: >TARGET
                   2649: 
1.103     jwilke   2650: \ What for? ANS? JAW Cond: DONE   ( addr -- )  (done) ;Cond
1.53      jwilke   2651: 
                   2652: >CROSS
1.54      pazsan   2653: : (leave) ( branchtoken -- )
1.53      jwilke   2654:     3 cells allocate throw >r
                   2655:     T here H r@ cell+ !
                   2656:     r@ 2 cells + !
                   2657:     tleavings @ r@ !
                   2658:     r> tleavings ! ;
                   2659: >TARGET
                   2660: 
1.103     jwilke   2661: : (leave,) ( -- ) 
                   2662:   branchmark, (leave) ;                        ' (leave,) plugin-of leave,
                   2663: 
                   2664: : (?leave,) ( -- )
                   2665:   compile 0= ?branchmark, (leave) ;            ' (?leave,) plugin-of ?leave,
                   2666: 
                   2667: Cond: LEAVE     leave, ;Cond
                   2668: Cond: ?LEAVE    ?leave, ;Cond
1.53      jwilke   2669: 
1.54      pazsan   2670: >CROSS
                   2671: \ !!JW ToDo : Move to general tools section
                   2672: 
                   2673: : to1 ( x1 x2 xn n -- addr )
1.103     jwilke   2674: \G packs n stack elements in am allocated memory region
1.54      pazsan   2675:    dup dup 1+ cells allocate throw dup >r swap 1+
                   2676:    0 DO tuck ! cell+ LOOP
                   2677:    drop r> ;
1.103     jwilke   2678: 
1.54      pazsan   2679: : 1to ( addr -- x1 x2 xn )
                   2680: \G unpacks the elements saved by to1
                   2681:     dup @ swap over cells + swap
                   2682:     0 DO  dup @ swap 1 cells -  LOOP
                   2683:     free throw ;
                   2684: 
                   2685: : loop]     branchto, dup <resolve tcell - (done) ;
                   2686: 
                   2687: : skiploop] ?dup IF branchto, branchtoresolve, THEN ;
                   2688: 
                   2689: >TARGET
                   2690: 
1.52      jwilke   2691: \ Structural Conditionals                              12dec92py
                   2692: 
1.103     jwilke   2693: : (cs-swap) ( x1 x2 -- x2 x1 )
                   2694:   swap ;                                       ' (cs-swap) plugin-of cs-swap
                   2695: 
                   2696: : (ahead,) branchmark, ;                       ' (ahead,) plugin-of ahead,
                   2697: 
                   2698: : (if,) ?branchmark, ;                                 ' (if,) plugin-of if,
                   2699: 
                   2700: : (then,) branchto, branchtoresolve, ;                 ' (then,) plugin-of then,
                   2701: 
                   2702: : (else,) ( ahead ) branchmark, 
                   2703:           swap 
                   2704:           ( then ) branchto, branchtoresolve, ;        ' (else,) plugin-of else,
                   2705: 
                   2706: : (begin,) branchtomark, ;                     ' (begin,) plugin-of begin,
                   2707: 
                   2708: : (while,) ( if ) ?branchmark,
                   2709:            swap ;                              ' (while,) plugin-of while,
                   2710: 
                   2711: : (again,) branch, ;                           ' (again,) plugin-of again,
                   2712: 
                   2713: : (until,) ?branch, ;                          ' (until,) plugin-of until,
                   2714: 
                   2715: : (repeat,) ( again ) branch,
                   2716:             ( then ) branchto, branchtoresolve, ; ' (repeat,) plugin-of repeat,
                   2717: 
                   2718: : (case,)   ( -- n )
                   2719:   0 ;                                          ' (case,) plugin-of case,
                   2720: 
                   2721: : (of,) ( n -- x1 n )
                   2722:   1+ >r 
                   2723:   compile over compile = 
                   2724:   if, compile drop r> ;                                ' (of,) plugin-of of,
                   2725: 
                   2726: : (endof,) ( x1 n -- x2 n )
                   2727:   >r 1 ncontrols? else, r> ;                   ' (endof,) plugin-of endof,
                   2728: 
                   2729: : (endcase,) ( x1 .. xn n -- )
                   2730:   compile drop 0 ?DO 1 ncontrols? then, LOOP ; ' (endcase,) plugin-of endcase,
                   2731: 
1.53      jwilke   2732: >TARGET
1.103     jwilke   2733: Cond: AHEAD     ahead, ;Cond
                   2734: Cond: IF        if,  ;Cond
                   2735: Cond: THEN      1 ncontrols? then, ;Cond
                   2736: Cond: ENDIF     1 ncontrols? then, ;Cond
                   2737: Cond: ELSE      1 ncontrols? else, ;Cond
                   2738: 
                   2739: Cond: BEGIN     begin, ;Cond
                   2740: Cond: WHILE     1 ncontrols? while, ;Cond
                   2741: Cond: AGAIN     1 ncontrols? again, ;Cond
                   2742: Cond: UNTIL     1 ncontrols? until, ;Cond
                   2743: Cond: REPEAT    2 ncontrols? repeat, ;Cond
                   2744: 
                   2745: Cond: CASE      case, ;Cond
                   2746: Cond: OF        of, ;Cond
                   2747: Cond: ENDOF     endof, ;Cond
                   2748: Cond: ENDCASE   endcase, ;Cond
1.1       anton    2749: 
                   2750: \ Structural Conditionals                              12dec92py
                   2751: 
1.103     jwilke   2752: : (do,) ( -- target-addr )
                   2753:   \ ?? i think 0 is too much! jaw
1.54      pazsan   2754:     0 compile (do)
1.103     jwilke   2755:     branchtomark,  2 to1 ;                     ' (do,) plugin-of do,
1.54      pazsan   2756: 
1.103     jwilke   2757: \ alternative for if no ?do
                   2758: \ : (do,)
1.54      pazsan   2759: \     compile 2dup compile = compile IF
                   2760: \     compile 2drop compile ELSE
                   2761: \     compile (do) branchtomark, 2 to1 ;
                   2762:     
1.103     jwilke   2763: : (?do,) ( -- target-addr )
1.54      pazsan   2764:     0 compile (?do)  ?domark, (leave)
1.103     jwilke   2765:     branchtomark,  2 to1 ;                     ' (?do,) plugin-of ?do,
                   2766: 
                   2767: : (for,) ( -- target-addr )
                   2768:   compile (for) branchtomark, ;                        ' (for,) plugin-of for,
                   2769: 
                   2770: : (loop,) ( target-addr -- )
                   2771:   1to compile (loop)  loop] 
                   2772:   compile unloop skiploop] ;                   ' (loop,) plugin-of loop,
                   2773: 
                   2774: : (+loop,) ( target-addr -- )
                   2775:   1to compile (+loop)  loop] 
                   2776:   compile unloop skiploop] ;                   ' (+loop,) plugin-of +loop,
                   2777: 
                   2778: : (next,) 
                   2779:   compile (next)  loop] compile unloop ;       ' (next,) plugin-of next,
                   2780: 
                   2781: Cond: DO       do, ;Cond
                   2782: Cond: ?DO      ?do, ;Cond
                   2783: Cond: FOR      for, ;Cond
                   2784: 
                   2785: Cond: LOOP     1 ncontrols? loop, ;Cond
                   2786: Cond: +LOOP    1 ncontrols? +loop, ;Cond
                   2787: Cond: NEXT     1 ncontrols? next, ;Cond
1.52      jwilke   2788: 
1.1       anton    2789: \ String words                                         23feb93py
                   2790: 
1.103     jwilke   2791: : ,"            [char] " parse ht-string, X align ;
1.1       anton    2792: 
1.103     jwilke   2793: Cond: ."        compile (.")     T ," H ;Cond
                   2794: Cond: S"        compile (S")     T ," H ;Cond
                   2795: Cond: C"        compile (C")     T ," H ;Cond
                   2796: Cond: ABORT"    compile (ABORT") T ," H ;Cond
1.1       anton    2797: 
                   2798: Cond: IS        T ' >body H compile ALiteral compile ! ;Cond
1.66      pazsan   2799: : IS            T >address ' >body ! H ;
1.9       pazsan   2800: Cond: TO        T ' >body H compile ALiteral compile ! ;Cond
                   2801: : TO            T ' >body ! H ;
1.1       anton    2802: 
1.52      jwilke   2803: Cond: defers   T ' >body @ compile, H ;Cond
                   2804: 
1.1       anton    2805: \ LINKED ERR" ENV" 2ENV"                                18may93jaw
                   2806: 
                   2807: \ linked list primitive
1.79      jwilke   2808: : linked        X here over X @ X A, swap X ! ;
1.52      jwilke   2809: : chained      T linked A, H ;
1.1       anton    2810: 
                   2811: : err"   s" ErrLink linked" evaluate T , H
1.103     jwilke   2812:          [char] " parse ht-string, X align ;
1.1       anton    2813: 
                   2814: : env"  [char] " parse s" EnvLink linked" evaluate
1.103     jwilke   2815:         ht-string, X align X , ;
1.1       anton    2816: 
                   2817: : 2env" [char] " parse s" EnvLink linked" evaluate
1.103     jwilke   2818:         here >r ht-string, X align X , X ,
1.1       anton    2819:         r> dup T c@ H 80 and swap T c! H ;
                   2820: 
                   2821: \ compile must be last                                 22feb93py
                   2822: 
1.103     jwilke   2823: Cond: [compile] ( -- ) \ name
                   2824: \g For immediate words, works even if forward reference
                   2825:       bl word gfind 0= ABORT" CROSS: Can't compile"
                   2826:       (gexecute) ;Cond
                   2827:           
                   2828: Cond: postpone ( -- ) \ name
                   2829:       bl word gfind 0= ABORT" CROSS: Can't compile"
                   2830:       dup >magic @ <fwd> =
                   2831:       ABORT" CROSS: Can't postpone on forward declaration"
                   2832:       dup >magic @ <imm> =
                   2833:       IF   (gexecute)
                   2834:       ELSE compile (compile) addr, THEN ;Cond
1.54      pazsan   2835:           
1.77      jwilke   2836: \ save-cross                                           17mar93py
                   2837: 
                   2838: hex
                   2839: 
                   2840: >CROSS
                   2841: Create magic  s" Gforth2x" here over allot swap move
                   2842: 
                   2843: bigendian 1+ \ strangely, in magic big=0, little=1
                   2844: tcell 1 = 0 and or
                   2845: tcell 2 = 2 and or
                   2846: tcell 4 = 4 and or
                   2847: tcell 8 = 6 and or
                   2848: tchar 1 = 00 and or
                   2849: tchar 2 = 28 and or
                   2850: tchar 4 = 50 and or
                   2851: tchar 8 = 78 and or
                   2852: magic 7 + c!
                   2853: 
                   2854: : save-cross ( "image-name" "binary-name" -- )
                   2855:   bl parse ." Saving to " 2dup type cr
                   2856:   w/o bin create-file throw >r
                   2857:   TNIL IF
1.80      anton    2858:       s" #! "           r@ write-file throw
                   2859:       bl parse          r@ write-file throw
                   2860:       s"  --image-file" r@ write-file throw
1.77      jwilke   2861:       #lf       r@ emit-file throw
                   2862:       r@ dup file-position throw drop 8 mod 8 swap ( file-id limit index )
                   2863:       ?do
                   2864:          bl over emit-file throw
                   2865:       loop
                   2866:       drop
                   2867:       magic 8       r@ write-file throw \ write magic
                   2868:   ELSE
                   2869:       bl parse 2drop
                   2870:   THEN
                   2871:   image @ there 
                   2872:   r@ write-file throw \ write image
                   2873:   TNIL IF
                   2874:       bit$  @ there 1- tcell>bit rshift 1+
                   2875:                 r@ write-file throw \ write tags
                   2876:   THEN
                   2877:   r> close-file throw ;
                   2878: 
                   2879: : save-region ( addr len -- )
                   2880:   bl parse w/o bin create-file throw >r
                   2881:   swap >image swap r@ write-file throw
                   2882:   r> close-file throw ;
                   2883: 
1.103     jwilke   2884: 1 [IF]
                   2885: 
                   2886: Variable name-ptr
                   2887: Create name-buf 200 chars allot
                   2888: : init-name-buf name-buf name-ptr ! ;
                   2889: : nb, name-ptr @ c! 1 chars name-ptr +! ;
                   2890: : $nb, ( adr len -- ) bounds ?DO I c@ nb, LOOP ;
                   2891: : @nb name-ptr @ name-buf tuck - ;
                   2892: 
                   2893: \ stores a usefull string representation of the character
                   2894: \ in the name buffer
                   2895: : name-char, ( c -- )
                   2896:   dup 'a 'z 1+ within IF nb, EXIT THEN
                   2897:   dup 'A 'Z 1+ within IF $20 + nb, EXIT THEN
                   2898:   dup '0 '9 1+ within IF nb, EXIT THEN
                   2899:   CASE '+ OF s" _PLUS" $nb, ENDOF
                   2900:        '- OF s" _MINUS" $nb, ENDOF
                   2901:        '* OF s" _STAR" $nb, ENDOF
                   2902:        '/ OF s" _SLASH" $nb, ENDOF
                   2903:        '' OF s" _TICK" $nb, ENDOF
                   2904:        '( OF s" _OPAREN" $nb, ENDOF
                   2905:        ') OF s" _CPAREN" $nb, ENDOF
                   2906:        '[ OF s" _OBRACKET" $nb, ENDOF
                   2907:        '] OF s" _CBRACKET" $nb, ENDOF
                   2908:        '! OF s" _STORE" $nb, ENDOF
                   2909:        '@ OF s" _FETCH" $nb, ENDOF
                   2910:        '> OF s" _GREATER" $nb, ENDOF
                   2911:        '< OF s" _LESS" $nb, ENDOF
                   2912:        '= OF s" _EQUAL" $nb, ENDOF
                   2913:        '# OF s" _HASH" $nb, ENDOF
                   2914:        '? OF s" _QUEST" $nb, ENDOF
                   2915:        ': OF s" _COL" $nb, ENDOF
                   2916:        '; OF s" _SEMICOL" $nb, ENDOF
                   2917:        ', OF s" _COMMA" $nb, ENDOF
                   2918:        '. OF s" _DOT" $nb, ENDOF
                   2919:        '" OF s" _DQUOT" $nb, ENDOF
                   2920:        dup 
                   2921:        base @ >r hex s>d <# #s 'X hold '_ hold #> $nb, r> base !
                   2922:   ENDCASE ;
                   2923:  
                   2924: : label-from-ghostname ( ghost -- addr len )
                   2925:   dup >ghostname init-name-buf 'L nb, bounds 
                   2926:   ?DO I c@ name-char, LOOP 
                   2927:   \ we add the address to a name to make in unique
                   2928:   \ because one name may appear more then once
                   2929:   \ there are names (e.g. boot) that may be reference from other
                   2930:   \ assembler source files, so we declare them as unique
                   2931:   \ and don't add the address suffix
                   2932:   dup >ghost-flags @ <unique> and 0= 
                   2933:   IF   s" __" $nb, >link @ base @ >r hex 0 <# #s 'L hold #> r> base ! $nb, 
                   2934:   ELSE drop 
                   2935:   THEN
                   2936:   @nb ;
                   2937: 
                   2938: : label-from-ghostnameXX ( ghost -- addr len )
                   2939: \ same as (label-from-ghostname) but caches generated names
                   2940:   dup >asm-name @ ?dup IF nip count EXIT THEN
                   2941:  \ dup >r (label-from-ghostname) 2dup
                   2942:   align here >r string, align
                   2943:   r> r> >asm-name ! ;
                   2944: 
                   2945: : primghostdiscover ( xt -- ghost true | xt false )
                   2946:   dup 0= IF false EXIT THEN
                   2947:   >r last-prim-ghost
                   2948:   BEGIN @ dup
                   2949:   WHILE dup >asm-dummyaddr @ r@ =
                   2950:         IF rdrop true EXIT THEN
                   2951:   REPEAT
                   2952:   drop r> false ;
                   2953: 
                   2954: : gdiscover2 ( xt -- ghost true | xt false ) 
                   2955:   dup taddr>region 0= IF false EXIT THEN
                   2956:   dup (>regiontype) @ dup 0= IF drop false EXIT THEN
                   2957:   addr-xt-ghost @ dup 0= IF drop false EXIT THEN
                   2958:   nip true ;
                   2959: \  dup >ghost-name @ IF nip true ELSE drop false THEN ;
                   2960: 
                   2961: \ generates a label name for the target address
                   2962: : generate-label-name ( taddr -- addr len )
                   2963:   gdiscover2
                   2964:   IF dup >magic @ <do:> =
                   2965:      IF >asm-name @ count EXIT THEN
                   2966:      label-from-ghostname
                   2967:   ELSE
                   2968:      primghostdiscover
                   2969:      IF   >asm-name @ count 
                   2970:      ELSE base @ >r hex 0 <# #s 'L hold #> r> base !
                   2971:      THEN
                   2972:   THEN ;
                   2973: 
                   2974: Variable outfile-fd
                   2975: 
                   2976: : $out ( adr len -- ) outfile-fd @ write-file throw  ;
                   2977: : nlout newline $out ;
                   2978: : .ux ( n -- ) 
                   2979:   base @ hex swap 0 <# #S #> $out base ! ;
                   2980: 
                   2981: : save-asm-region-part-aligned ( taddr len -- 'taddr 'len )
                   2982:   dup cell/ 0 
                   2983:   ?DO nlout s"    .word " $out over @relbit 
                   2984:       IF   over X @ generate-label-name $out
                   2985:       ELSE over X @ s" 0x0" $out .ux
                   2986:       THEN
                   2987:       tcell /string
                   2988:   LOOP ;
                   2989: 
                   2990: : print-bytes ( taddr len n -- taddr' len' )
                   2991:   over min dup 0> 
                   2992:   IF   nlout s"    .byte " $out 0 
                   2993:        ?DO  I 0> IF s" , " $out THEN
                   2994:             over X c@ s" 0x0" $out .ux 1 /string 
                   2995:        LOOP 
                   2996:   THEN ;
                   2997: 
                   2998: : save-asm-region-part ( addr len -- )
                   2999:   over dup X aligned swap - ?dup
                   3000:   IF   print-bytes THEN
                   3001:   save-asm-region-part-aligned
                   3002:   dup dup X aligned swap - ?dup
                   3003:   IF   2 pick @relbit ABORT" relocated field splitted"
                   3004:        print-bytes
                   3005:   THEN
                   3006:   2drop ;
                   3007: 
                   3008: : print-label ( taddr -- )
                   3009:   nlout generate-label-name $out s" :" $out ;
                   3010: 
                   3011: : snl-calc ( taddr taddr2 -- )
                   3012:   tuck over - ;
                   3013: 
                   3014: : skip-nolables ( taddr -- taddr2 taddr len )
                   3015: \G skips memory region where no lables are defined
                   3016: \G starting from taddr+1
                   3017: \G Labels will be introduced for each reference mark
                   3018: \G in addr-refs.
                   3019: \G This word deals with lables at byte addresses as well.
                   3020: \G The main idea is to have an intro part which
                   3021: \G skips until the next cell boundary, the middle part
                   3022: \G which skips whole cells very efficiently and the third
                   3023: \G part which skips the bytes to the label in a cell
                   3024:   dup 1+ dup (>regiontype) 
                   3025:   ( S taddr taddr-realstart type-addr )
                   3026:   dup @ dup IF addr-refs @ THEN
                   3027:   swap >r
                   3028:   over align+ tuck tcell swap - rshift swap 0
                   3029:   DO dup 1 and 
                   3030:      IF drop rdrop snl-calc UNLOOP EXIT THEN 
                   3031:      2/ swap 1+ swap 
                   3032:   LOOP
                   3033:   drop r> cell+
                   3034:   ( S .. taddr2 type-addr ) dup
                   3035:   BEGIN dup @ dup IF addr-refs @ THEN 0= WHILE cell+ REPEAT
                   3036:   dup >r swap - 1 cells / tcell * + r>
                   3037:   ( S .. taddr2+skiplencells type-addr )
                   3038:   @ addr-refs @ 1 tcell lshift or
                   3039:   BEGIN dup 1 and 0= WHILE swap 1+ swap 2/ REPEAT drop
                   3040:   ( S .. taddr2+skiplencells+skiplenbytes )
                   3041:   snl-calc ;
                   3042: 
                   3043: : insert-label ( taddr -- )
                   3044:   dup 0= IF drop EXIT THEN
                   3045:   \ ignore everything which points outside our memory regions
                   3046:   \ maybe a primitive pointer or whatever
                   3047:   dup taddr>region 0= IF drop EXIT THEN
                   3048:   dup >r (>regiontype) define-addr-struct addr-refs dup @ 
                   3049:   r> tcell 1- and 1 swap lshift or swap ! ;
                   3050: 
                   3051: \ this generates a sorted list of addresses which must be labels
                   3052: \ it scans therefore a whole region
                   3053: : generate-label-list-region ( taddr len -- )
                   3054:   BEGIN over @relbit IF over X @ insert-label THEN
                   3055:         tcell /string dup 0< 
                   3056:   UNTIL 2drop ;
                   3057: 
                   3058: : generate-label-list ( -- )
                   3059:   region-link
                   3060:   BEGIN @ dup WHILE 
                   3061:         dup 0 >rlink - extent 
                   3062:         ?dup IF generate-label-list-region ELSE drop THEN
                   3063:   REPEAT drop ;
                   3064: 
                   3065: : create-outfile ( addr len -- )
                   3066:   w/o bin create-file throw outfile-fd ! ;
                   3067: 
                   3068: : close-outfile ( -- )
                   3069:   outfile-fd @ close-file throw ;
                   3070: 
                   3071: : (save-asm-region) ( region -- )
                   3072:   \ ." label list..."
                   3073:   generate-label-list
                   3074:   \ ." ok!" cr
                   3075:   extent ( S taddr len )
                   3076:   over insert-label
                   3077:   2dup + dup insert-label >r ( R end-label )
                   3078:   ( S taddr len ) drop
                   3079:   BEGIN
                   3080:      dup print-label
                   3081:      dup r@ <> WHILE
                   3082:      skip-nolables save-asm-region-part
                   3083:   REPEAT drop rdrop ;
                   3084: 
                   3085: : lineout ( addr len -- )
                   3086:   outfile-fd @ write-line throw ;  
                   3087: 
                   3088: : save-asm-region ( region adr len -- )
                   3089:   create-outfile (save-asm-region) close-outfile ;
                   3090: 
                   3091: [THEN]
                   3092: 
1.54      pazsan   3093: \ \ minimal definitions
                   3094:           
1.77      jwilke   3095: >MINIMAL also minimal
                   3096: 
1.1       anton    3097: \ Usefull words                                        13feb93py
                   3098: 
                   3099: : KB  400 * ;
                   3100: 
1.54      pazsan   3101: \ \ [IF] [ELSE] [THEN] ...                             14sep97jaw
                   3102: 
                   3103: \ it is useful to define our own structures and not to rely
                   3104: \ on the words in the compiler
                   3105: \ The words in the compiler might be defined with vocabularies
                   3106: \ this doesn't work with our self-made compile-loop
                   3107: 
                   3108: Create parsed 20 chars allot   \ store word we parsed
                   3109: 
                   3110: : upcase
                   3111:     parsed count bounds
                   3112:     ?DO I c@ toupper I c! LOOP ;
                   3113: 
                   3114: : [ELSE]
                   3115:     1 BEGIN
                   3116:        BEGIN bl word count dup WHILE
1.77      jwilke   3117:            comment? 20 umin parsed place upcase parsed count
1.54      pazsan   3118:            2dup s" [IF]" compare 0= >r 
                   3119:            2dup s" [IFUNDEF]" compare 0= >r
                   3120:            2dup s" [IFDEF]" compare 0= r> or r> or
                   3121:            IF   2drop 1+
                   3122:            ELSE 2dup s" [ELSE]" compare 0=
                   3123:                IF   2drop 1- dup
                   3124:                    IF 1+
                   3125:                    THEN
                   3126:                ELSE
                   3127:                    2dup s" [ENDIF]" compare 0= >r
                   3128:                    s" [THEN]" compare 0= r> or
                   3129:                    IF 1- THEN
                   3130:                THEN
                   3131:            THEN
                   3132:            ?dup 0= ?EXIT
                   3133:        REPEAT
                   3134:        2drop refill 0=
                   3135:     UNTIL drop ; immediate
                   3136:   
                   3137: : [THEN] ( -- ) ; immediate
                   3138: 
                   3139: : [ENDIF] ( -- ) ; immediate
                   3140: 
                   3141: : [IF] ( flag -- )
                   3142:     0= IF postpone [ELSE] THEN ; immediate 
                   3143: 
                   3144: Cond: [IF]      postpone [IF] ;Cond
                   3145: Cond: [THEN]    postpone [THEN] ;Cond
                   3146: Cond: [ELSE]    postpone [ELSE] ;Cond
                   3147: 
1.1       anton    3148: \ define new [IFDEF] and [IFUNDEF]                      20may93jaw
                   3149: 
1.77      jwilke   3150: : defined? tdefined? ;
1.44      pazsan   3151: : needed? needed? ;
                   3152: : doer? doer? ;
1.1       anton    3153: 
1.52      jwilke   3154: \ we want to use IFDEF on compiler directives (e.g. E?) in the source, too
                   3155: 
                   3156: : directive? 
1.77      jwilke   3157:   bl word count [ ' target >wordlist ] literal search-wordlist 
1.52      jwilke   3158:   dup IF nip THEN ;
                   3159: 
                   3160: : [IFDEF]  >in @ directive? swap >in !
1.77      jwilke   3161:           0= IF tdefined? ELSE name 2drop true THEN
1.52      jwilke   3162:           postpone [IF] ;
                   3163: 
1.77      jwilke   3164: : [IFUNDEF] tdefined? 0= postpone [IF] ;
1.1       anton    3165: 
1.54      pazsan   3166: Cond: [IFDEF]   postpone [IFDEF] ;Cond
                   3167: 
                   3168: Cond: [IFUNDEF] postpone [IFUNDEF] ;Cond
                   3169: 
1.1       anton    3170: \ C: \- \+ Conditional Compiling                         09jun93jaw
                   3171: 
1.77      jwilke   3172: : C: >in @ tdefined? 0=
                   3173:      IF    >in ! X :
1.1       anton    3174:      ELSE drop
                   3175:         BEGIN bl word dup c@
                   3176:               IF   count comment? s" ;" compare 0= ?EXIT
                   3177:               ELSE refill 0= ABORT" CROSS: Out of Input while C:"
                   3178:               THEN
                   3179:         AGAIN
                   3180:      THEN ;
                   3181: 
1.74      jwilke   3182: : d? d? ;
                   3183: 
                   3184: \G doesn't skip line when debug switch is on
                   3185: : \D D? 0= IF postpone \ THEN ;
1.52      jwilke   3186: 
1.48      anton    3187: \G interprets the line if word is not defined
1.77      jwilke   3188: : \- tdefined? IF postpone \ THEN ;
1.48      anton    3189: 
                   3190: \G interprets the line if word is defined
1.77      jwilke   3191: : \+ tdefined? 0= IF postpone \ THEN ;
1.1       anton    3192: 
1.48      anton    3193: Cond: \- \- ;Cond
                   3194: Cond: \+ \+ ;Cond
1.52      jwilke   3195: Cond: \D \D ;Cond
1.48      anton    3196: 
                   3197: : ?? bl word find IF execute ELSE drop 0 THEN ;
                   3198: 
                   3199: : needed:
                   3200: \G defines ghost for words that we want to be compiled
1.103     jwilke   3201:   BEGIN >in @ bl word c@ WHILE >in ! Ghost drop REPEAT drop ;
1.48      anton    3202: 
1.1       anton    3203: \ words that should be in minimal
1.52      jwilke   3204: 
                   3205: create s-buffer 50 chars allot
                   3206: 
1.77      jwilke   3207: bigendian Constant bigendian
1.1       anton    3208: 
1.52      jwilke   3209: : here there ;
1.67      jwilke   3210: : equ constant ;
                   3211: : mark there constant ;
1.54      pazsan   3212: 
                   3213: \ compiler directives
1.52      jwilke   3214: : >ram >ram ;
                   3215: : >rom >rom ;
                   3216: : >auto >auto ;
                   3217: : >tempdp >tempdp ;
                   3218: : tempdp> tempdp> ;
                   3219: : const constflag on ;
1.103     jwilke   3220: 
                   3221: : Redefinitions-start
                   3222: \G Starts a redefinition section. Warnings are disabled and
                   3223: \G existing ghosts are reused. This is used in the kernel
                   3224: \G where ( and \ and the like are redefined
                   3225:   twarnings off warnings off reuse-ghosts on ;
                   3226: 
                   3227: : Redefinitions-end
                   3228: \G Ends a redefinition section. Warnings are enabled again.
                   3229:   twarnings on warnings on reuse-ghosts off ;
                   3230: 
                   3231: : warnings name 3 = 
                   3232:   IF twarnings off warnings off ELSE twarnings on warnings on THEN drop ;
1.102     jwilke   3233: 
1.60      anton    3234: : | ;
                   3235: \ : | NoHeaderFlag on ; \ This is broken (damages the last word)
1.52      jwilke   3236: 
1.48      anton    3237: : save-cross save-cross ;
1.52      jwilke   3238: : save-region save-region ;
                   3239: : tdump swap >image swap dump ;
                   3240: 
1.48      anton    3241: also forth 
1.52      jwilke   3242: [IFDEF] Label           : Label defempty? Label ; [THEN] 
                   3243: [IFDEF] start-macros    : start-macros defempty? start-macros ; [THEN]
1.77      jwilke   3244: \ [IFDEF] builttag     : builttag builttag ;   [THEN]
1.48      anton    3245: previous
                   3246: 
1.52      jwilke   3247: : s" [char] " parse s-buffer place s-buffer count ; \ for environment?
1.43      pazsan   3248: : + + ;
1.52      jwilke   3249: : 1+ 1 + ;
                   3250: : 2+ 2 + ;
1.43      pazsan   3251: : 1- 1- ;
                   3252: : - - ;
1.52      jwilke   3253: : and and ;
                   3254: : or or ;
1.43      pazsan   3255: : 2* 2* ;
                   3256: : * * ;
                   3257: : / / ;
                   3258: : dup dup ;
                   3259: : over over ;
                   3260: : swap swap ;
                   3261: : rot rot ;
                   3262: : drop drop ;
                   3263: : =   = ;
                   3264: : 0=   0= ;
                   3265: : lshift lshift ;
                   3266: : 2/ 2/ ;
1.103     jwilke   3267: \ : . . ;
1.1       anton    3268: 
1.79      jwilke   3269: : all-words    ['] forced?    IS skip? ;
1.43      pazsan   3270: : needed-words ['] needed?  IS skip? ;
1.75      jwilke   3271: : undef-words  ['] defined2? IS skip? ;
                   3272: : skipdef skipdef ;
1.1       anton    3273: 
1.40      pazsan   3274: : \  postpone \ ;  immediate
1.47      pazsan   3275: : \G T-\G ; immediate
1.40      pazsan   3276: : (  postpone ( ;  immediate
1.1       anton    3277: : include bl word count included ;
1.103     jwilke   3278: : included swap >image swap included ;
1.52      jwilke   3279: : require require ;
1.103     jwilke   3280: : needs require ;
1.1       anton    3281: : .( [char] ) parse type ;
1.52      jwilke   3282: : ." [char] " parse type ;
1.1       anton    3283: : cr cr ;
                   3284: 
1.77      jwilke   3285: : times 0 ?DO dup X c, LOOP drop ; \ used for space table creation
                   3286: 
                   3287: \ only forth also cross also minimal definitions order
1.1       anton    3288: 
                   3289: \ cross-compiler words
                   3290: 
1.103     jwilke   3291: : decimal       decimal [g'] decimal >exec2 @ ?dup IF EXECUTE THEN ;
                   3292: : hex           hex [g'] hex >exec2 @ ?dup IF EXECUTE THEN ;
1.1       anton    3293: 
1.77      jwilke   3294: \ : tudp          X tudp ;
                   3295: \ : tup           X tup ;
                   3296: 
                   3297: : doc-off       false to-doc ! ;
                   3298: : doc-on        true  to-doc ! ;
1.39      pazsan   3299: 
1.103     jwilke   3300: : declareunique ( "name" -- )
                   3301: \G Sets the unique flag for a ghost. The assembler output
                   3302: \G generates labels with the ghostname concatenated with the address
                   3303: \G while cross-compiling. The address is concatenated
                   3304: \G because we have double occurences of the same name.
                   3305: \G If we want to reference the labels from the assembler or C
                   3306: \G code we declare them unique, so the address is skipped.
                   3307:   Ghost >ghost-flags dup @ <unique> or swap ! ;
                   3308: 
                   3309: \ [IFDEF] dbg : dbg dbg ; [THEN]
1.39      pazsan   3310: 
1.1       anton    3311: \ for debugging...
1.103     jwilke   3312: \ : dbg dbg ;
                   3313: : horder         order ;
                   3314: : hwords        words ;
                   3315: \ : words      also ghosts 
                   3316: \                words previous ;
                   3317: \ : .s            .s ;
1.1       anton    3318: : bye           bye ;
1.99      pazsan   3319: 
1.103     jwilke   3320: \ dummy
                   3321: : group 0 word drop ;
                   3322: 
1.1       anton    3323: \ turnkey direction
                   3324: : H forth ; immediate
                   3325: : T minimal ; immediate
                   3326: : G ghosts ; immediate
                   3327: 
                   3328: 
                   3329: \ these ones are pefered:
                   3330: 
1.74      jwilke   3331: : unlock previous forth also cross ;
1.52      jwilke   3332: 
1.77      jwilke   3333: \ also minimal
1.103     jwilke   3334: >cross
                   3335: 
                   3336: : turnkey 
                   3337:    ghosts-wordlist 1 set-order
                   3338:    also target definitions
                   3339:    also Minimal also ;
                   3340: 
                   3341: >minimal
                   3342: 
                   3343: : [[+++
                   3344:   turnkey unlock ;
1.1       anton    3345: 
                   3346: unlock definitions also minimal
1.77      jwilke   3347: 
1.103     jwilke   3348: : lock   turnkey ;
                   3349: 
                   3350: Defer +++]]-hook
                   3351: : +++]] +++]]-hook lock ;
                   3352: 
                   3353: LOCK
1.77      jwilke   3354: \ load cross compiler extension defined in mach file
                   3355: 
                   3356: UNLOCK >CROSS
                   3357: 
                   3358: [IFDEF] extend-cross extend-cross [THEN]
                   3359: 
                   3360: LOCK
1.103     jwilke   3361: 
                   3362: 
                   3363: 

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