Annotation of gforth/cross.fs, revision 1.161

1.1       anton       1: \ CROSS.FS     The Cross-Compiler                      06oct92py
                      2: \ Idea and implementation: Bernd Paysan (py)
1.30      anton       3: 
1.161   ! anton       4: \ Copyright (C) 1995,1996,1997,1998,1999,2000,2003,2004,2005,2006 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:
1.107     jwilke     26: - Crossdoc destination ./doc/crossdoc.fd makes no sense when
                     27:   cross.fs is used seperately. jaw
                     28: - Do we need this char translation with >address and in branchoffset? 
                     29:   (>body also affected) jaw
1.67      jwilke     30: 
                     31: [THEN]
1.48      anton      32: 
1.128     anton      33: s" compat/strcomp.fs" included
                     34: 
1.77      jwilke     35: hex
                     36: 
                     37: \ debugging for compiling
                     38: 
                     39: \ print stack at each colon definition
                     40: \ : : save-input cr bl word count type restore-input throw .s : ;
                     41: 
                     42: \ print stack at each created word
                     43: \ : create save-input cr bl word count type restore-input throw .s create ;
                     44: 
                     45: 
                     46: \ \ -------------  Setup Vocabularies
                     47: 
                     48: \ Remark: Vocabulary is not ANS, but it should work...
                     49: 
                     50: Vocabulary Cross
                     51: Vocabulary Target
                     52: Vocabulary Ghosts
                     53: Vocabulary Minimal
                     54: only Forth also Target also also
                     55: definitions Forth
                     56: 
1.78      jwilke     57: : T  previous Ghosts also Target ; immediate
1.77      jwilke     58: : G  Ghosts ; immediate
                     59: : H  previous Forth also Cross ; immediate
                     60: 
                     61: forth definitions
                     62: 
1.78      jwilke     63: : T  previous Ghosts also Target ; immediate
1.77      jwilke     64: : G  Ghosts ; immediate
                     65: 
1.105     jwilke     66: 
1.77      jwilke     67: : >cross  also Cross definitions previous ;
                     68: : >target also Target definitions previous ;
                     69: : >minimal also Minimal definitions previous ;
                     70: 
                     71: H
                     72: 
                     73: >CROSS
                     74: 
1.123     jwilke     75: \ Test against this definitions to find out whether we are cross-compiling
                     76: \ may be usefull for assemblers
                     77: 0 Constant gforth-cross-indicator
                     78: 
1.77      jwilke     79: \ find out whether we are compiling with gforth
                     80: 
                     81: : defined? bl word find nip ;
                     82: defined? emit-file defined? toupper and \ drop 0
                     83: [IF]
                     84: \ use this in a gforth system
                     85: : \GFORTH ; immediate
                     86: : \ANSI postpone \ ; immediate
                     87: [ELSE]
                     88: : \GFORTH postpone \ ; immediate
                     89: : \ANSI ; immediate
                     90: [THEN]
                     91: 
                     92: \ANSI : [IFUNDEF] defined? 0= postpone [IF] ; immediate
                     93: \ANSI : [IFDEF] defined? postpone [IF] ; immediate
                     94: 0 \ANSI drop 1
                     95: [IF]
                     96: : \G postpone \ ; immediate
                     97: : rdrop postpone r> postpone drop ; immediate
                     98: : name bl word count ;
                     99: : bounds over + swap ;
                    100: : scan >r BEGIN dup WHILE over c@ r@ <> WHILE 1 /string REPEAT THEN rdrop ;
                    101: : linked here over @ , swap ! ;
                    102: : alias create , DOES> @ EXECUTE ;
                    103: : defer ['] noop alias ;
                    104: : is state @ 
                    105:   IF ' >body postpone literal postpone ! 
                    106:   ELSE ' >body ! THEN ; immediate
                    107: : 0>= 0< 0= ;
                    108: : d<> rot <> -rot <> or ;
                    109: : toupper dup [char] a [char] z 1+ within IF [char] A [char] a - + THEN ;
                    110: Variable ebuf
                    111: : emit-file ( c fd -- ior ) swap ebuf c! ebuf 1 chars rot write-file ;
                    112: 0a Constant #lf
                    113: 0d Constant #cr
                    114: 
                    115: [IFUNDEF] Warnings Variable Warnings [THEN]
                    116: 
                    117: \ \ Number parsing                                     23feb93py
                    118: 
                    119: \ number? number                                       23feb93py
                    120: 
                    121: Variable dpl
                    122: 
                    123: hex
                    124: Create bases   10 ,   2 ,   A , 100 ,
                    125: \              16     2    10   character
                    126: 
                    127: \ !! protect BASE saving wrapper against exceptions
                    128: : getbase ( addr u -- addr' u' )
                    129:     over c@ [char] $ - dup 4 u<
                    130:     IF
                    131:        cells bases + @ base ! 1 /string
                    132:     ELSE
                    133:        drop
                    134:     THEN ;
                    135: 
                    136: : sign? ( addr u -- addr u flag )
                    137:     over c@ [char] - =  dup >r
                    138:     IF
                    139:        1 /string
                    140:     THEN
                    141:     r> ;
                    142: 
                    143: : s>unumber? ( addr u -- ud flag )
1.78      jwilke    144:     over [char] ' =
                    145:     IF         \ a ' alone is rather unusual :-)
                    146:        drop char+ c@ 0 true EXIT 
                    147:     THEN
1.77      jwilke    148:     base @ >r  dpl on  getbase
                    149:     0. 2swap
                    150:     BEGIN ( d addr len )
                    151:        dup >r >number dup
                    152:     WHILE \ there are characters left
                    153:        dup r> -
                    154:     WHILE \ the last >number parsed something
                    155:        dup 1- dpl ! over c@ [char] . =
                    156:     WHILE \ the current char is '.'
                    157:        1 /string
                    158:     REPEAT  THEN \ there are unparseable characters left
                    159:        2drop false
                    160:     ELSE
                    161:        rdrop 2drop true
                    162:     THEN
                    163:     r> base ! ;
                    164: 
                    165: \ ouch, this is complicated; there must be a simpler way - anton
                    166: : s>number? ( addr len -- d f )
                    167:     \ converts string addr len into d, flag indicates success
                    168:     sign? >r
                    169:     s>unumber?
                    170:     0= IF
                    171:         rdrop false
                    172:     ELSE \ no characters left, all ok
                    173:        r>
                    174:        IF
                    175:            dnegate
                    176:        THEN
                    177:        true
                    178:     THEN ;
                    179: 
                    180: : s>number ( addr len -- d )
                    181:     \ don't use this, there is no way to tell success
                    182:     s>number? drop ;
                    183: 
                    184: : snumber? ( c-addr u -- 0 / n -1 / d 0> )
                    185:     s>number? 0=
                    186:     IF
                    187:        2drop false  EXIT
                    188:     THEN
                    189:     dpl @ dup 0< IF
                    190:        nip
                    191:     ELSE
                    192:        1+
                    193:     THEN ;
                    194: 
                    195: : number? ( string -- string 0 / n -1 / d 0> )
                    196:     dup >r count snumber? dup if
                    197:        rdrop
                    198:     else
                    199:        r> swap
                    200:     then ;
                    201: 
                    202: : number ( string -- d )
                    203:     number? ?dup 0= abort" ?"  0<
                    204:     IF
                    205:        s>d
                    206:     THEN ;
                    207: 
                    208: [THEN]
1.48      anton     209: 
1.115     jwilke    210: \ this provides assert( and struct stuff
                    211: \GFORTH [IFUNDEF] assert1(
                    212: \GFORTH also forth definitions require assert.fs previous
                    213: \GFORTH [THEN]
                    214: 
                    215: >CROSS
                    216: 
1.52      jwilke    217: hex     \ the defualt base for the cross-compiler is hex !!
1.78      jwilke    218: \ Warnings off
1.52      jwilke    219: 
                    220: \ words that are generaly useful
                    221: 
1.59      pazsan    222: : KB  400 * ;
1.52      jwilke    223: : >wordlist ( vocabulary-xt -- wordlist-struct )
                    224:   also execute get-order swap >r 1- set-order r> ;
                    225: 
                    226: : umax 2dup u< IF swap THEN drop ;
                    227: : umin 2dup u> IF swap THEN drop ;
1.1       anton     228: 
1.23      pazsan    229: : string, ( c-addr u -- )
                    230:     \ puts down string as cstring
                    231:     dup c, here swap chars dup allot move ;
1.5       pazsan    232: 
1.77      jwilke    233: : ," [char] " parse string, ;
                    234: 
1.52      jwilke    235: : SetValue ( n -- <name> )
1.54      pazsan    236: \G Same behaviour as "Value" if the <name> is not defined
                    237: \G Same behaviour as "to" if <name> is defined
1.52      jwilke    238: \G SetValue searches in the current vocabulary
1.68      jwilke    239:   save-input bl word >r restore-input throw r> count
                    240:   get-current search-wordlist
                    241:   IF   drop >r
                    242:        \ we have to set current to be topmost context wordlist
                    243:        get-order get-order get-current swap 1+ set-order
                    244:        r> ['] to execute
1.74      jwilke    245:        set-order
1.68      jwilke    246:   ELSE Value THEN ;
1.52      jwilke    247: 
                    248: : DefaultValue ( n -- <name> )
1.54      pazsan    249: \G Same behaviour as "Value" if the <name> is not defined
                    250: \G DefaultValue searches in the current vocabulary
1.52      jwilke    251:  save-input bl word >r restore-input throw r> count
                    252:  get-current search-wordlist
1.56      pazsan    253:  IF bl word drop 2drop ELSE Value THEN ;
1.1       anton     254: 
                    255: hex
                    256: 
1.120     jwilke    257: \ FIXME delete`
1.52      jwilke    258: \ 1 Constant Cross-Flag        \ to check whether assembler compiler plug-ins are
                    259:                        \ for cross-compiling
                    260: \ No! we use "[IFUNDEF]" there to find out whether we are target compiling!!!
                    261: 
1.120     jwilke    262: \ FIXME move down
1.52      jwilke    263: : comment? ( c-addr u -- c-addr u )
1.128     anton     264:         2dup s" (" str=
1.52      jwilke    265:         IF    postpone (
1.128     anton     266:         ELSE  2dup s" \" str= IF postpone \ THEN
1.52      jwilke    267:         THEN ;
                    268: 
1.120     jwilke    269: : X ( -- <name> )
                    270: \G The next word in the input is a target word.
                    271: \G Equivalent to T <name> but without permanent
                    272: \G switch to target dictionary. Used as prefix e.g. for @, !, here etc.
                    273:   bl word count [ ' target >wordlist ] Literal search-wordlist
                    274:   IF state @ IF compile, ELSE execute THEN
                    275:   ELSE -1 ABORT" Cross: access method not supported!"
                    276:   THEN ; immediate
1.105     jwilke    277: 
1.52      jwilke    278: \ Begin CROSS COMPILER:
                    279: 
1.74      jwilke    280: \ debugging
1.52      jwilke    281: 
1.74      jwilke    282: 0 [IF]
                    283: 
                    284: This implements debugflags for the cross compiler and the compiled
                    285: images. It works identical to the has-flags in the environment.
                    286: The debugflags are defined in a vocabluary. If the word exists and
                    287: its value is true, the flag is switched on.
                    288: 
                    289: [THEN]
                    290: 
1.77      jwilke    291: >CROSS
                    292: 
1.74      jwilke    293: Vocabulary debugflags  \ debug flags for cross
                    294: also debugflags get-order over
                    295: Constant debugflags-wl
                    296: set-order previous
                    297: 
                    298: : DebugFlag
                    299:   get-current >r debugflags-wl set-current
                    300:   SetValue
                    301:   r> set-current ;
                    302: 
                    303: : Debug? ( adr u -- flag )
                    304: \G return true if debug flag is defined or switched on
                    305:   debugflags-wl search-wordlist
                    306:   IF EXECUTE
                    307:   ELSE false THEN ;
                    308: 
                    309: : D? ( <name> -- flag )
                    310: \G return true if debug flag is defined or switched on
                    311: \G while compiling we do not return the current value but
                    312:   bl word count debug? ;
                    313: 
                    314: : [d?]
                    315: \G compile the value-xt so the debug flag can be switched
                    316: \G the flag must exist!
                    317:   bl word count debugflags-wl search-wordlist
                    318:   IF   compile,
                    319:   ELSE  -1 ABORT" unknown debug flag"
                    320:        \ POSTPONE false 
                    321:   THEN ; immediate
1.54      pazsan    322: 
1.123     jwilke    323: : symentry ( adr len taddr -- )
                    324: \G Produce a symbol table (an optional symbol address
                    325: \G map) if wanted
                    326:     [ [IFDEF] fd-symbol-table ]
                    327:       base @ swap hex s>d <# 8 0 DO # LOOP #> fd-symbol-table write-file throw base !
                    328:       s" :" fd-symbol-table write-file throw
                    329:       fd-symbol-table write-line throw
                    330:     [ [ELSE] ]
                    331:       2drop drop
                    332:     [ [THEN] ] ;
                    333: 
                    334: 
1.77      jwilke    335: \ \ --------------------       source file
                    336: 
                    337: decimal
                    338: 
                    339: Variable cross-file-list
                    340: 0 cross-file-list !
                    341: Variable target-file-list
                    342: 0 target-file-list !
                    343: Variable host-file-list
                    344: 0 host-file-list !
                    345: 
                    346: cross-file-list Value file-list
                    347: 0 Value source-desc
                    348: 
                    349: \ file loading
                    350: 
                    351: : >fl-id   1 cells + ;
                    352: : >fl-name 2 cells + ;
                    353: 
                    354: Variable filelist 0 filelist !
                    355: Create NoFile ," #load-file#"
                    356: 
                    357: : loadfile ( -- adr )
                    358:   source-desc ?dup IF >fl-name ELSE NoFile THEN ;
                    359: 
                    360: : sourcefilename ( -- adr len ) 
                    361:   loadfile count ;
                    362: 
                    363: \ANSI : sourceline# 0 ;
                    364: 
                    365: \ \ --------------------       path handling from kernel/paths.fs
                    366: 
                    367: \ paths.fs path file handling                                    03may97jaw
                    368: 
                    369: \ -Changing the search-path:
                    370: \ fpath+ <path>        adds a directory to the searchpath
                    371: \ fpath= <path>|<path> makes complete now searchpath
                    372: \                      seperator is |
                    373: \ .fpath               displays the search path
                    374: \ remark I: 
                    375: \ a ./ in the beginning of filename is expanded to the directory the
                    376: \ current file comes from. ./ can also be included in the search-path!
                    377: \ ~+/ loads from the current working directory
                    378: 
                    379: \ remark II:
                    380: \ if there is no sufficient space for the search path increase it!
                    381: 
                    382: 
                    383: \ -Creating custom paths:
                    384: 
                    385: \ It is possible to use the search mechanism on yourself.
                    386: 
                    387: \ Make a buffer for the path:
                    388: \ create mypath        100 chars ,     \ maximum length (is checked)
                    389: \              0 ,             \ real len
                    390: \              100 chars allot \ space for path
                    391: \ use the same functions as above with:
                    392: \ mypath path+ 
                    393: \ mypath path=
                    394: \ mypath .path
                    395: 
                    396: \ do a open with the search path:
                    397: \ open-path-file ( adr len path -- fd adr len ior )
                    398: \ the file is opened read-only; if the file is not found an error is generated
                    399: 
                    400: \ questions to: wilke@jwdt.com
                    401: 
                    402: [IFUNDEF] +place
                    403: : +place ( adr len adr )
                    404:         2dup >r >r
                    405:         dup c@ char+ + swap move
                    406:         r> r> dup c@ rot + swap c! ;
                    407: [THEN]
                    408: 
                    409: [IFUNDEF] place
                    410: : place ( c-addr1 u c-addr2 )
                    411:         2dup c! char+ swap move ;
                    412: [THEN]
                    413: 
                    414: \ if we have path handling, use this and the setup of it
                    415: [IFUNDEF] open-fpath-file
                    416: 
                    417: create sourcepath 1024 chars , 0 , 1024 chars allot \ !! make this dynamic
                    418: sourcepath value fpath
                    419: 
                    420: : also-path ( adr len path^ -- )
                    421:   >r
                    422:   \ len check
                    423:   r@ cell+ @ over + r@ @ u> ABORT" path buffer too small!"
                    424:   \ copy into
                    425:   tuck r@ cell+ dup @ cell+ + swap cmove
                    426:   \ make delimiter
                    427:   0 r@ cell+ dup @ cell+ + 2 pick + c! 1 + r> cell+ +!
                    428:   ;
                    429: 
                    430: : only-path ( adr len path^ -- )
                    431:   dup 0 swap cell+ ! also-path ;
                    432: 
                    433: : path+ ( path-addr  "dir" -- ) \ gforth
                    434:     \G Add the directory @var{dir} to the search path @var{path-addr}.
                    435:     name rot also-path ;
                    436: 
                    437: : fpath+ ( "dir" ) \ gforth
                    438:     \G Add directory @var{dir} to the Forth search path.
                    439:     fpath path+ ;
                    440: 
                    441: : path= ( path-addr "dir1|dir2|dir3" ) \ gforth
                    442:     \G Make a complete new search path; the path separator is |.
                    443:     name 2dup bounds ?DO i c@ [char] | = IF 0 i c! THEN LOOP
                    444:     rot only-path ;
                    445: 
                    446: : fpath= ( "dir1|dir2|dir3" ) \ gforth
                    447:     \G Make a complete new Forth search path; the path separator is |.
                    448:     fpath path= ;
                    449: 
1.145     anton     450: : path>string  cell+ dup cell+ swap @ ;
1.77      jwilke    451: 
                    452: : next-path ( adr len -- adr2 len2 )
                    453:   2dup 0 scan
                    454:   dup 0= IF     2drop 0 -rot 0 -rot EXIT THEN
                    455:   >r 1+ -rot r@ 1- -rot
                    456:   r> - ;
                    457: 
                    458: : previous-path ( path^ -- )
1.145     anton     459:   dup path>string
1.77      jwilke    460:   BEGIN tuck dup WHILE repeat ;
                    461: 
                    462: : .path ( path-addr -- ) \ gforth
                    463:     \G Display the contents of the search path @var{path-addr}.
1.145     anton     464:     path>string
1.77      jwilke    465:     BEGIN next-path dup WHILE type space REPEAT 2drop 2drop ;
                    466: 
                    467: : .fpath ( -- ) \ gforth
                    468:     \G Display the contents of the Forth search path.
                    469:     fpath .path ;
                    470: 
                    471: : absolut-path? ( addr u -- flag ) \ gforth
                    472:     \G A path is absolute if it starts with a / or a ~ (~ expansion),
                    473:     \G or if it is in the form ./*, extended regexp: ^[/~]|./, or if
                    474:     \G it has a colon as second character ("C:...").  Paths simply
                    475:     \G containing a / are not absolute!
                    476:     2dup 2 u> swap 1+ c@ [char] : = and >r \ dos absoulte: c:/....
                    477:     over c@ [char] / = >r
                    478:     over c@ [char] ~ = >r
1.128     anton     479:     \ 2dup S" ../" string-prefix? r> or >r \ not catered for in expandtopic
                    480:     S" ./" string-prefix?
1.77      jwilke    481:     r> r> r> or or or ;
                    482: 
                    483: Create ofile 0 c, 255 chars allot
                    484: Create tfile 0 c, 255 chars allot
                    485: 
                    486: : pathsep? dup [char] / = swap [char] \ = or ;
                    487: 
                    488: : need/   ofile dup c@ + c@ pathsep? 0= IF s" /" ofile +place THEN ;
                    489: 
                    490: : extractpath ( adr len -- adr len2 )
                    491:   BEGIN dup WHILE 1-
                    492:         2dup + c@ pathsep? IF EXIT THEN
                    493:   REPEAT ;
                    494: 
                    495: : remove~+ ( -- )
1.128     anton     496:     ofile count s" ~+/" string-prefix?
1.77      jwilke    497:     IF
                    498:        ofile count 3 /string ofile place
                    499:     THEN ;
                    500: 
                    501: : expandtopic ( -- ) \ stack effect correct? - anton
                    502:     \ expands "./" into an absolute name
1.128     anton     503:     ofile count s" ./" string-prefix?
1.77      jwilke    504:     IF
                    505:        ofile count 1 /string tfile place
                    506:        0 ofile c! sourcefilename extractpath ofile place
                    507:        ofile c@ IF need/ THEN
                    508:        tfile count over c@ pathsep? IF 1 /string THEN
                    509:        ofile +place
                    510:     THEN ;
                    511: 
                    512: : compact.. ( adr len -- adr2 len2 )
1.85      pazsan    513:     \ deletes phrases like "xy/.." out of our directory name 2dec97jaw
                    514:     over swap
                    515:     BEGIN  dup  WHILE
1.128     anton     516:         dup >r '/ scan 2dup s" /../" string-prefix?
1.85      pazsan    517:         IF
                    518:             dup r> - >r 4 /string over r> + 4 -
                    519:             swap 2dup + >r move dup r> over -
                    520:         ELSE
                    521:             rdrop dup 1 min /string
                    522:         THEN
                    523:     REPEAT  drop over - ;
1.77      jwilke    524: 
                    525: : reworkdir ( -- )
                    526:   remove~+
                    527:   ofile count compact..
                    528:   nip ofile c! ;
                    529: 
                    530: : open-ofile ( -- fid ior )
                    531:     \G opens the file whose name is in ofile
                    532:     expandtopic reworkdir
                    533:     ofile count r/o open-file ;
                    534: 
                    535: : check-path ( adr1 len1 adr2 len2 -- fd 0 | 0 <>0 )
                    536:   0 ofile ! >r >r ofile place need/
                    537:   r> r> ofile +place
                    538:   open-ofile ;
                    539: 
                    540: : open-path-file ( addr1 u1 path-addr -- wfileid addr2 u2 0 | ior ) \ gforth
                    541:     \G Look in path @var{path-addr} for the file specified by @var{addr1 u1}.
                    542:     \G If found, the resulting path and an open file descriptor
                    543:     \G are returned. If the file is not found, @var{ior} is non-zero.
                    544:   >r
                    545:   2dup absolut-path?
                    546:   IF    rdrop
                    547:         ofile place open-ofile
                    548:        dup 0= IF >r ofile count r> THEN EXIT
1.145     anton     549:   ELSE  r> path>string
1.77      jwilke    550:         BEGIN  next-path dup
                    551:         WHILE  5 pick 5 pick check-path
                    552:         0= IF >r 2drop 2drop r> ofile count 0 EXIT ELSE drop THEN
                    553:   REPEAT
                    554:         2drop 2drop 2drop -38
                    555:   THEN ;
                    556: 
                    557: : open-fpath-file ( addr1 u1 -- wfileid addr2 u2 0 | ior ) \ gforth
                    558:     \G Look in the Forth search path for the file specified by @var{addr1 u1}.
                    559:     \G If found, the resulting path and an open file descriptor
                    560:     \G are returned. If the file is not found, @var{ior} is non-zero.
                    561:     fpath open-path-file ;
                    562: 
                    563: fpath= ~+
                    564: 
                    565: [THEN]
                    566: 
                    567: \ \ --------------------       include require                 13may99jaw
                    568: 
                    569: >CROSS
                    570: 
                    571: : add-included-file ( adr len -- adr )
                    572:   dup >fl-name char+ allocate throw >r
                    573:   file-list @ r@ ! r@ file-list !
                    574:   r@ >fl-name place r> ;
                    575: 
                    576: : included? ( c-addr u -- f )
                    577:   file-list
                    578:   BEGIN        @ dup
1.128     anton     579:   WHILE        >r 2dup r@ >fl-name count str=
1.77      jwilke    580:        IF rdrop 2drop true EXIT THEN
                    581:        r>
                    582:   REPEAT
                    583:   2drop drop false ;   
                    584: 
                    585: false DebugFlag showincludedfiles
                    586: 
                    587: : included1 ( fd adr u -- )
                    588: \ include file adr u / fd
                    589: \ we don't use fd with include-file, because the forth system
                    590: \ doesn't know the name of the file to get a nice error report
                    591:   [d?] showincludedfiles
                    592:   IF   cr ." Including: " 2dup type ." ..." THEN
                    593:   rot close-file throw
                    594:   source-desc >r
                    595:   add-included-file to source-desc 
                    596:   sourcefilename
                    597:   ['] included catch
                    598:   r> to source-desc 
                    599:   throw ;
                    600: 
                    601: : included ( adr len -- )
                    602:        cross-file-list to file-list
                    603:        open-fpath-file throw 
                    604:         included1 ;
                    605: 
                    606: : required ( adr len -- )
                    607:        cross-file-list to file-list
                    608:        open-fpath-file throw \ 2dup cr ." R:" type
                    609:        2dup included?
                    610:        IF      2drop close-file throw
                    611:        ELSE    included1
                    612:        THEN ;
                    613: 
                    614: : include bl word count included ;
                    615: 
                    616: : require bl word count required ;
                    617: 
1.78      jwilke    618: 0 [IF]
                    619: 
1.77      jwilke    620: also forth definitions previous
                    621: 
                    622: : included ( adr len -- ) included ;
                    623: 
                    624: : required ( adr len -- ) required ;
                    625: 
                    626: : include include ;
                    627: 
                    628: : require require ;
                    629: 
1.78      jwilke    630: [THEN]
                    631: 
1.77      jwilke    632: >CROSS
                    633: hex
                    634: 
                    635: \ \ --------------------        Error Handling                  05aug97jaw
                    636: 
                    637: \ Flags
                    638: 
                    639: also forth definitions  \ these values may be predefined before
                    640:                         \ the cross-compiler is loaded
                    641: 
                    642: false DefaultValue stack-warn           \ check on empty stack at any definition
                    643: false DefaultValue create-forward-warn   \ warn on forward declaration of created words
                    644: 
                    645: previous >CROSS
                    646: 
                    647: : .dec
                    648:   base @ decimal swap . base ! ;
                    649: 
                    650: : .sourcepos
                    651:   cr sourcefilename type ." :"
                    652:   sourceline# .dec ;
                    653: 
                    654: : warnhead
                    655: \G display error-message head
                    656: \G perhaps with linenumber and filename
                    657:   .sourcepos ." Warning: " ;
                    658: 
                    659: : empty? depth IF .sourcepos ." Stack not empty!"  THEN ;
                    660: 
                    661: stack-warn [IF]
                    662: : defempty? empty? ;
                    663: [ELSE]
                    664: : defempty? ; immediate
1.139     jwilke    665: \ : defempty? .sourcepos ; 
1.77      jwilke    666: [THEN]
                    667: 
1.105     jwilke    668: \ \ --------------------        Compiler Plug Ins               01aug97jaw
                    669: 
                    670: >CROSS
                    671: 
                    672: \ Compiler States
                    673: 
                    674: Variable comp-state
                    675: 0 Constant interpreting
                    676: 1 Constant compiling
                    677: 2 Constant resolving
                    678: 3 Constant assembling
                    679: 
                    680: : compiling? comp-state @ compiling = ;
                    681: 
                    682: : pi-undefined -1 ABORT" Plugin undefined" ;
                    683: 
                    684: : Plugin ( -- : pluginname )
                    685:   Create 
                    686:   \ for normal cross-compiling only one action
                    687:   \ exists, this fields are identical. For the instant
                    688:   \ simulation environment we need, two actions for each plugin
                    689:   \ the target one and the one that generates the simulation code
                    690:   ['] pi-undefined , \ action
                    691:   ['] pi-undefined , \ target plugin action
                    692:   8765 ,     \ plugin magic
                    693:   DOES> perform ;
                    694: 
                    695: Plugin DummyPlugin
                    696: 
                    697: : 'PI ( -- addr : pluginname )
                    698:   ' >body dup 2 cells + @ 8765 <> ABORT" not a plugin" ;
                    699: 
                    700: : plugin-of ( xt -- : pluginname )
                    701:   dup 'PI 2! ;
                    702: 
                    703: : action-of ( xt -- : plunginname )
                    704:   'PI cell+ ! ;
                    705: 
                    706: : TPA ( -- : plugin )
                    707: \ target plugin action
                    708: \ executes current target action of plugin
                    709:   'PI cell+ POSTPONE literal POSTPONE perform ; immediate
                    710: 
                    711: Variable ppi-temp 0 ppi-temp !
                    712: 
                    713: : pa:
                    714: \g define plugin action
                    715:   ppi-temp @ ABORT" pa: definition not closed"
                    716:   'PI ppi-temp ! :noname ;
                    717: 
                    718: : ;pa
                    719: \g end a definition for plugin action
                    720:   POSTPONE ; ppi-temp @ ! 0 ppi-temp ! ; immediate
                    721: 
                    722: 
1.107     jwilke    723: Plugin dlit, ( d -- )                  \ compile numerical value the target
1.105     jwilke    724: Plugin lit, ( n -- )
                    725: Plugin alit, ( n -- )
                    726: 
                    727: Plugin branch, ( target-addr -- )      \ compiles a branch
                    728: Plugin ?branch, ( target-addr -- )     \ compiles a ?branch
                    729: Plugin branchmark, ( -- branch-addr )  \ reserves room for a branch
                    730: Plugin ?branchmark, ( -- branch-addr ) \ reserves room for a ?branch
                    731: Plugin ?domark, ( -- branch-addr )     \ reserves room for a ?do branch
                    732: Plugin branchto, ( -- )                        \ actual program position is target of a branch (do e.g. alignment)
                    733: ' NOOP plugin-of branchto, 
                    734: Plugin branchtoresolve, ( branch-addr -- ) \ resolves a forward reference from branchmark
                    735: Plugin branchtomark, ( -- target-addr )        \ marks a branch destination
                    736: 
                    737: Plugin colon, ( tcfa -- )              \ compiles call to tcfa at current position
                    738: Plugin prim, ( tcfa -- )               \ compiles primitive invocation
                    739: Plugin colonmark, ( -- addr )          \ marks a colon call
                    740: Plugin colon-resolve ( tcfa addr -- )
                    741: 
                    742: Plugin addr-resolve ( target-addr addr -- )
                    743: Plugin doer-resolve ( ghost res-pnt target-addr addr -- ghost res-pnt )
                    744: 
                    745: Plugin ncontrols? ( [ xn ... x1 ] n -- ) \ checks wheter n control structures are open
                    746: Plugin if,     ( -- if-token )
                    747: Plugin else,   ( if-token -- if-token )
                    748: Plugin then,   ( if-token -- )
                    749: Plugin ahead,
                    750: Plugin begin,
                    751: Plugin while,
                    752: Plugin until,
                    753: Plugin again,
                    754: Plugin repeat,
                    755: Plugin cs-swap ( x1 x2 -- x2 x1 )
                    756: 
                    757: Plugin case,   ( -- n )
                    758: Plugin of,     ( n -- x1 n )
                    759: Plugin endof,  ( x1 n -- x2 n )
                    760: Plugin endcase,        ( x1 .. xn n -- )
                    761: 
                    762: Plugin do,     ( -- do-token )
                    763: Plugin ?do,    ( -- ?do-token )
                    764: Plugin for,    ( -- for-token )
                    765: Plugin loop,   ( do-token / ?do-token -- )
                    766: Plugin +loop,  ( do-token / ?do-token -- )
                    767: Plugin next,   ( for-token )
                    768: Plugin leave,  ( -- )
                    769: Plugin ?leave,         ( -- )
                    770: 
1.121     jwilke    771: Plugin ca>native  \ Convert a code address to the processors
                    772:                   \ native address. This is used in doprim, and
                    773:                   \ code/code: primitive definitions word to
                    774:                   \ convert the addresses.
                    775:                   \ The only target where we need this is the misc
                    776:                   \ which is a 16 Bit processor with word addresses
                    777:                   \ but the forth system we build has a normal byte
                    778:                   \ addressed memory model    
1.105     jwilke    779: 
                    780: Plugin doprim, \ compiles start of a primitive
                    781: Plugin docol,          \ compiles start of a colon definition
                    782: Plugin doer,           
                    783: Plugin fini,      \ compiles end of definition ;s
                    784: Plugin doeshandler,
                    785: Plugin dodoes,
                    786: 
                    787: Plugin colon-start
                    788: ' noop plugin-of colon-start
                    789: Plugin colon-end
                    790: ' noop plugin-of colon-end
                    791: 
                    792: Plugin ]comp     \ starts compilation
                    793: ' noop plugin-of ]comp
                    794: Plugin comp[     \ ends compilation
                    795: ' noop plugin-of comp[
                    796: 
                    797: Plugin t>body             \ we need the system >body
                    798:                        \ and the target >body
                    799: 
                    800: >TARGET
                    801: : >body t>body ;
                    802: 
                    803: 
1.103     jwilke    804: \ Ghost Builder                                        06oct92py
                    805: 
1.105     jwilke    806: >CROSS
1.103     jwilke    807: hex
1.105     jwilke    808: \ Values for ghost magic
1.103     jwilke    809: 4711 Constant <fwd>             4712 Constant <res>
                    810: 4713 Constant <imm>             4714 Constant <do:>
                    811: 4715 Constant <skip>
                    812: 
1.105     jwilke    813: \ Bitmask for ghost flags
1.103     jwilke    814: 1 Constant <unique>
1.105     jwilke    815: 2 Constant <primitive>
                    816: 
                    817: \ FXIME: move this to general stuff?
                    818: : set-flag ( addr flag -- )
                    819:   over @ or swap ! ;
                    820: 
                    821: : reset-flag ( addr flag -- )
                    822:   invert over @ and swap ! ;
                    823: 
                    824: : get-flag ( addr flag -- f )
                    825:   swap @ and 0<> ;
                    826:   
1.103     jwilke    827: 
                    828: Struct
1.52      jwilke    829: 
1.103     jwilke    830:   \ link to next ghost (always the first element)
                    831:   cell% field >next-ghost
1.52      jwilke    832: 
1.103     jwilke    833:   \ type of ghost
                    834:   cell% field >magic
                    835:                
                    836:   \ pointer where ghost is in target, or if unresolved
                    837:   \ points to the where we have to resolve (linked-list)
                    838:   cell% field >link
1.52      jwilke    839: 
1.106     jwilke    840:   \ execution semantics (while target compiling) of ghost
1.103     jwilke    841:   cell% field >exec
1.52      jwilke    842: 
1.106     jwilke    843:   \ compilation action of this ghost; this is what is
                    844:   \ done to compile a call (or whatever) to this definition.
                    845:   \ E.g. >comp contains the semantic of postpone s"
                    846:   \ whereas >exec-compile contains the semantic of s"
1.105     jwilke    847:   cell% field >comp
                    848: 
1.106     jwilke    849:   \ Compilation sematics (while parsing) of this ghost. E.g. 
                    850:   \ "\" will skip the rest of line.
                    851:   \ These semantics are defined by Cond: and
                    852:   \ if a word is made immediate in instant, then the >exec2 field
                    853:   \ gets copied to here
1.103     jwilke    854:   cell% field >exec-compile
1.52      jwilke    855: 
1.106     jwilke    856:   \ Additional execution semantics of this ghost. This is used
                    857:   \ for code generated by instant and for the doer-xt of created
                    858:   \ words
1.103     jwilke    859:   cell% field >exec2
1.52      jwilke    860: 
1.103     jwilke    861:   cell% field >created
1.52      jwilke    862: 
1.103     jwilke    863:   \ the xt of the created ghost word itself
                    864:   cell% field >ghost-xt
1.52      jwilke    865: 
1.103     jwilke    866:   \ pointer to the counted string of the assiciated
                    867:   \ assembler label
                    868:   cell% field >asm-name
1.52      jwilke    869: 
1.103     jwilke    870:   \ mapped primitives have a special address, so
                    871:   \ we are able to detect them
                    872:   cell% field >asm-dummyaddr
                    873:                        
                    874:   \ for builder (create, variable...) words
                    875:   \ the execution symantics of words built are placed here
                    876:   \ this is a doer ghost or a dummy ghost
                    877:   cell% field >do:ghost
1.93      pazsan    878: 
1.103     jwilke    879:   cell% field >ghost-flags
1.93      pazsan    880: 
1.103     jwilke    881:   cell% field >ghost-name
1.52      jwilke    882: 
1.103     jwilke    883: End-Struct ghost-struct
1.52      jwilke    884: 
1.103     jwilke    885: Variable ghost-list
                    886: 0 ghost-list !
1.52      jwilke    887: 
                    888: Variable executed-ghost \ last executed ghost, needed in tcreate and gdoes>
1.103     jwilke    889: \ Variable last-ghost  \ last ghost that is created
1.52      jwilke    890: Variable last-header-ghost \ last ghost definitions with header
                    891: 
1.103     jwilke    892: \ space for ghosts resolve structure
                    893: \ we create ghosts in a sepearte space
                    894: \ and not to the current host dp, because this
                    895: \ gives trouble with instant while compiling and creating
                    896: \ a ghost for a forward reference
                    897: \ BTW: we cannot allocate another memory region
                    898: \ because allot will check the overflow!!
                    899: Variable cross-space-dp
                    900: Create cross-space 250000 allot here 100 allot align 
                    901: Constant cross-space-end
                    902: cross-space cross-space-dp !
                    903: Variable cross-space-dp-orig
                    904: 
                    905: : cross-space-used cross-space-dp @ cross-space - ;
                    906: 
                    907: : >space ( -- )
                    908:   dp @ cross-space-dp-orig !
                    909:   cross-space-dp @ dp ! ;
                    910: 
                    911: : space> ( -- )
                    912:   dp @ dup cross-space-dp !
                    913:   cross-space-end u> ABORT" CROSS: cross-space overflow"
                    914:   cross-space-dp-orig @ dp ! ;
                    915: 
1.106     jwilke    916: \ this is just for debugging, to see this in the backtrace
1.103     jwilke    917: : execute-exec execute ;
                    918: : execute-exec2 execute ;
                    919: : execute-exec-compile execute ;
                    920: 
                    921: : NoExec
                    922:   executed-ghost @ >exec2 @
                    923:   ?dup 
                    924:   IF   execute-exec2
                    925:   ELSE true ABORT" CROSS: Don't execute ghost, or immediate target word"
                    926:   THEN ;
                    927: 
1.105     jwilke    928: Defer is-forward
                    929: 
1.103     jwilke    930: : (ghostheader) ( -- )
1.121     jwilke    931:     ghost-list linked <fwd> , 0 , ['] NoExec , ['] is-forward ,
1.118     pazsan    932:     0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , ;
1.103     jwilke    933: 
                    934: : ghostheader ( -- ) (ghostheader) 0 , ;
                    935: 
                    936: ' Ghosts >wordlist Constant ghosts-wordlist
                    937: 
                    938: \ the current wordlist for ghost definitions in the host
                    939: ghosts-wordlist Value current-ghosts
                    940: 
1.52      jwilke    941: : Make-Ghost ( "name" -- ghost )
1.103     jwilke    942:   >space
                    943:   \ save current and create in ghost vocabulary
                    944:   get-current >r current-ghosts set-current
                    945:   >in @ Create >in !
                    946:   \ some forth systems like iForth need the immediate directly
                    947:   \ after the word is created
                    948:   \ restore current
                    949:   r> set-current
                    950:   here (ghostheader)
                    951:   bl word count string, align
                    952:   space>
                    953:   \ set ghost-xt field by doing a search
                    954:   dup >ghost-name count 
                    955:   current-ghosts search-wordlist
                    956:   0= ABORT" CROSS: Just created, must be there!"
                    957:   over >ghost-xt !
                    958:   DOES> 
                    959:       dup executed-ghost !
                    960:       >exec @ execute-exec ;
1.52      jwilke    961: 
                    962: \ ghost words                                          14oct92py
                    963: \                                          changed:    10may93py/jaw
                    964: 
1.103     jwilke    965: Defer search-ghosts
                    966: 
                    967: : (search-ghosts) ( adr len -- cfa true | 0 )
                    968:   current-ghosts search-wordlist ; 
                    969: 
                    970:   ' (search-ghosts) IS search-ghosts
                    971: 
                    972: : gsearch ( addr len -- ghost true | 0 )
                    973:   search-ghosts
                    974:   dup IF swap >body swap THEN ;
                    975: 
                    976: : gfind   ( string -- ghost true / string false )
1.52      jwilke    977: \ searches for string in word-list ghosts
1.103     jwilke    978:   \ dup count type space
                    979:   dup >r count gsearch
                    980:   dup IF rdrop ELSE r> swap THEN ;
1.52      jwilke    981: 
                    982: : gdiscover ( xt -- ghost true | xt false )
1.103     jwilke    983:   >r ghost-list
1.52      jwilke    984:   BEGIN @ dup
1.103     jwilke    985:   WHILE dup >magic @ <fwd> <>
                    986:         IF dup >link @ r@ =
                    987:            IF rdrop true EXIT THEN
                    988:         THEN
1.52      jwilke    989:   REPEAT
1.103     jwilke    990:   drop r> false ;
1.52      jwilke    991: 
1.105     jwilke    992: : xt>ghost ( xt -- ghost )
                    993:   gdiscover 0= ABORT" CROSS: ghost not found for this xt" ;
                    994: 
1.103     jwilke    995: : Ghost   ( "name" -- ghost )
                    996:   >in @ bl word gfind IF  nip EXIT  THEN
1.52      jwilke    997:   drop  >in !  Make-Ghost ;
                    998: 
                    999: : >ghostname ( ghost -- adr len )
1.103     jwilke   1000:   >ghost-name count ;
                   1001: 
                   1002: : forward? ( ghost -- flag )
                   1003:   >magic @ <fwd> = ;
                   1004: 
                   1005: : undefined? ( ghost -- flag )
                   1006:   >magic @ dup <fwd> = swap <skip> = or ;
                   1007: 
                   1008: : immediate? ( ghost -- flag )
                   1009:   >magic @ <imm> = ;
                   1010: 
                   1011: Variable TWarnings
                   1012: TWarnings on
                   1013: Variable Exists-Warnings
                   1014: Exists-Warnings on
                   1015: 
                   1016: : exists-warning ( ghost -- ghost )
                   1017:   TWarnings @ Exists-Warnings @ and
                   1018:   IF dup >ghostname warnhead type ."  exists " THEN ;
                   1019: 
                   1020: \ : HeaderGhost Ghost ;
                   1021: 
                   1022: Variable reuse-ghosts reuse-ghosts off
                   1023: 
                   1024: : HeaderGhost ( "name" -- ghost )
                   1025:   >in @ 
                   1026:   bl word count 
                   1027: \  2dup type space
                   1028:   current-ghosts search-wordlist
                   1029:   IF  >body dup undefined? reuse-ghosts @ or
                   1030:       IF   nip EXIT
                   1031:       ELSE exists-warning 
                   1032:       THEN
                   1033:       drop >in ! 
                   1034:   ELSE >in ! 
                   1035:   THEN 
                   1036:   \ we keep the execution semantics of the prviously
                   1037:   \ defined words, this is a workaround
                   1038:   \ for the redefined \ until vocs work
                   1039:   Make-Ghost ;
                   1040:  
1.78      jwilke   1041: : .ghost ( ghost -- ) >ghostname type ;
                   1042: 
1.77      jwilke   1043: \ ' >ghostname ALIAS @name
1.52      jwilke   1044: 
1.115     jwilke   1045: : findghost ( "ghostname" -- ghost ) 
                   1046:   bl word gfind 0= ABORT" CROSS: Ghost don't exists" ;
                   1047: 
1.103     jwilke   1048: : [G'] ( -- ghost : name )
                   1049: \G ticks a ghost and returns its address
1.115     jwilke   1050:   findghost
                   1051:   state @ IF postpone literal THEN ; immediate
1.103     jwilke   1052: 
1.105     jwilke   1053: : g>xt ( ghost -- xt )
                   1054: \G Returns the xt (cfa) of a ghost. Issues a warning if undefined.
1.103     jwilke   1055:   dup undefined? ABORT" CROSS: forward " >link @ ;
                   1056:    
1.105     jwilke   1057: : g>body ( ghost -- body )
                   1058: \G Returns the body-address (pfa) of a ghost. 
                   1059: \G Issues a warning if undefined (a forward-reference).
                   1060:   g>xt X >body ;
                   1061: 
1.103     jwilke   1062: 1 Constant <label>
1.52      jwilke   1063: 
1.103     jwilke   1064: Struct
                   1065:   \ bitmask of address type (not used for now)
                   1066:   cell% field addr-type
                   1067:   \ if this address is an xt, this field points to the ghost
                   1068:   cell% field addr-xt-ghost
                   1069:   \ a bit mask that tells as what part of the cell
                   1070:   \ is refenced from an address pointer, used for assembler generation
                   1071:   cell% field addr-refs
                   1072: End-Struct addr-struct
                   1073: 
                   1074: : %allocerase ( align size -- addr )
                   1075:   dup >r %alloc dup r> erase ;
                   1076: 
                   1077: \ returns the addr struct, define it if 0 reference
                   1078: : define-addr-struct ( addr -- struct-addr )
                   1079:   dup @ ?dup IF nip EXIT THEN
                   1080:   addr-struct %allocerase tuck swap ! ;
1.75      jwilke   1081: 
1.118     pazsan   1082: >cross
                   1083: 
1.52      jwilke   1084: \ Predefined ghosts                                    12dec92py
                   1085: 
1.114     jwilke   1086: Ghost - drop \ need a ghost otherwise "-" would be treated as a number
                   1087: 
1.103     jwilke   1088: Ghost 0=                                        drop
                   1089: Ghost branch    Ghost ?branch                   2drop
                   1090: Ghost unloop    Ghost ;S                        2drop
1.118     pazsan   1091: Ghost lit       Ghost !                         2drop
                   1092: Ghost noop                                      drop
1.103     jwilke   1093: Ghost over      Ghost =         Ghost drop      2drop drop
                   1094: Ghost 2drop drop
                   1095: Ghost 2dup drop
1.115     jwilke   1096: Ghost call drop
                   1097: Ghost @ drop
                   1098: Ghost useraddr drop
                   1099: Ghost execute drop
                   1100: Ghost + drop
                   1101: Ghost decimal drop
                   1102: Ghost hex drop
1.118     pazsan   1103: Ghost lit@ drop
                   1104: Ghost lit-perform drop
                   1105: Ghost lit+ drop
                   1106: Ghost does-exec drop
1.52      jwilke   1107: 
1.119     pazsan   1108: Ghost :docol    Ghost :doesjump Ghost :dodoes   2drop drop
                   1109: Ghost :dovar                                   drop
                   1110: 
1.52      jwilke   1111: \ \ Parameter for target systems                         06oct92py
                   1112: 
1.103     jwilke   1113: 
1.52      jwilke   1114: \ we define it ans like...
                   1115: wordlist Constant target-environment
                   1116: 
1.103     jwilke   1117: \ save information of current dictionary to restore with environ>
                   1118: Variable env-current 
1.52      jwilke   1119: 
                   1120: : >ENVIRON get-current env-current ! target-environment set-current ;
                   1121: : ENVIRON> env-current @ set-current ; 
1.43      pazsan   1122: 
1.48      anton    1123: >TARGET
1.43      pazsan   1124: 
1.103     jwilke   1125: : environment? ( addr len -- [ x ] true | false )
                   1126: \G returns the content of environment variable and true or
                   1127: \G false if not present
                   1128:    target-environment search-wordlist 
                   1129:    IF EXECUTE true ELSE false THEN ;
                   1130: 
                   1131: : $has? ( addr len -- x | false )
                   1132: \G returns the content of environment variable 
                   1133: \G or false if not present
                   1134:    T environment? H dup IF drop THEN ;
                   1135: 
                   1136: : e? ( "name" -- x )
                   1137: \G returns the content of environment variable. 
                   1138: \G The variable is expected to exist. If not, issue an error.
                   1139:    bl word count T environment? H 
                   1140:    0= ABORT" environment variable not defined!" ;
                   1141: 
                   1142: : has? ( "name" --- x | false )
                   1143: \G returns the content of environment variable 
                   1144: \G or false if not present
                   1145:    bl word count T $has? H ;
1.52      jwilke   1146: 
1.48      anton    1147: 
1.54      pazsan   1148: >ENVIRON get-order get-current swap 1+ set-order
                   1149: true SetValue compiler
1.83      pazsan   1150: true SetValue cross
1.54      pazsan   1151: true SetValue standard-threading
                   1152: >TARGET previous
1.52      jwilke   1153: 
1.77      jwilke   1154: 0
1.103     jwilke   1155: [IFDEF] mach-file drop mach-file count 1 [THEN]
                   1156: [IFDEF] machine-file drop machine-file 1 [THEN]
                   1157: [IF]   included hex
1.77      jwilke   1158: [ELSE]  cr ." No machine description!" ABORT 
                   1159: [THEN]
1.43      pazsan   1160: 
1.53      jwilke   1161: >ENVIRON
                   1162: 
1.54      pazsan   1163: T has? ec H
                   1164: [IF]
                   1165: false DefaultValue relocate
                   1166: false DefaultValue file
                   1167: false DefaultValue OS
                   1168: false DefaultValue prims
                   1169: false DefaultValue floating
                   1170: false DefaultValue glocals
                   1171: false DefaultValue dcomps
                   1172: false DefaultValue hash
                   1173: false DefaultValue xconds
                   1174: false DefaultValue header
1.105     jwilke   1175: false DefaultValue backtrace
                   1176: false DefaultValue new-input
                   1177: false DefaultValue peephole
1.129     jwilke   1178: false DefaultValue abranch
1.139     jwilke   1179: true DefaultValue f83headerstring
1.141     pazsan   1180: true DefaultValue control-rack
1.54      pazsan   1181: [THEN]
                   1182: 
1.139     jwilke   1183: true DefaultValue gforthcross
1.54      pazsan   1184: true DefaultValue interpreter
                   1185: true DefaultValue ITC
                   1186: false DefaultValue rom
1.158     pazsan   1187: false DefaultValue flash
1.73      jwilke   1188: true DefaultValue standardthreading
1.53      jwilke   1189: 
1.139     jwilke   1190: \ ANSForth environment  stuff
                   1191: 8 DefaultValue ADDRESS-UNIT-BITS
                   1192: 255 DefaultValue MAX-CHAR
                   1193: 255 DefaultValue /COUNTED-STRING
                   1194: 
1.52      jwilke   1195: >TARGET
1.53      jwilke   1196: s" relocate" T environment? H 
1.103     jwilke   1197: \ JAW why set NIL to this?!
                   1198: [IF]   drop \ SetValue NIL
1.113     jwilke   1199: [ELSE] >ENVIRON X NIL SetValue relocate
1.53      jwilke   1200: [THEN]
1.113     jwilke   1201: >TARGET
                   1202: 
                   1203: 0 Constant NIL
1.43      pazsan   1204: 
                   1205: >CROSS
                   1206: 
1.52      jwilke   1207: \ \ Create additional parameters                         19jan95py
1.19      pazsan   1208: 
1.71      jwilke   1209: \ currently cross only works for host machines with address-unit-bits
                   1210: \ eual to 8 because of s! and sc!
                   1211: \ but I start to query the environment just to modularize a little bit
                   1212: 
                   1213: : check-address-unit-bits ( -- )       
                   1214: \      s" ADDRESS-UNIT-BITS" environment?
                   1215: \      IF 8 <> ELSE true THEN
                   1216: \      ABORT" ADDRESS-UNIT-BITS unknown or not equal to 8!"
                   1217: 
                   1218: \      shit, this doesn't work because environment? is only defined for 
                   1219: \      gforth.fi and not kernl???.fi
                   1220:        ;
                   1221: 
                   1222: check-address-unit-bits
                   1223: 8 Constant bits/byte   \ we define: byte is address-unit
                   1224: 
                   1225: 1 bits/byte lshift Constant maxbyte 
1.77      jwilke   1226: \ this sets byte size for the target machine, (probably right guess) jaw
1.67      jwilke   1227: 
1.19      pazsan   1228: T
1.71      jwilke   1229: NIL                    Constant TNIL
                   1230: cell                   Constant tcell
                   1231: cell<<                 Constant tcell<<
                   1232: cell>bit               Constant tcell>bit
                   1233: bits/char              Constant tbits/char
                   1234: bits/char H bits/byte T /      
                   1235:                        Constant tchar
                   1236: float                  Constant tfloat
                   1237: 1 bits/char lshift     Constant tmaxchar
                   1238: [IFUNDEF] bits/byte
                   1239: 8                      Constant tbits/byte
                   1240: [ELSE]
                   1241: bits/byte              Constant tbits/byte
                   1242: [THEN]
1.19      pazsan   1243: H
1.81      pazsan   1244: tbits/char bits/byte / Constant tbyte
1.71      jwilke   1245: 
1.19      pazsan   1246: 
1.48      anton    1247: \ Variables                                            06oct92py
                   1248: 
1.124     jwilke   1249: Variable (tlast)    
                   1250: (tlast) Value tlast TNIL tlast !  \ Last name field
1.48      anton    1251: Variable tlastcfa \ Last code field
1.52      jwilke   1252: 
                   1253: \ statistics                                           10jun97jaw
                   1254: 
                   1255: Variable headers-named 0 headers-named !
                   1256: Variable user-vars 0 user-vars !
                   1257: 
1.67      jwilke   1258: : target>bitmask-size ( u1 -- u2 )
                   1259:   1- tcell>bit rshift 1+ ;
                   1260: 
1.105     jwilke   1261: : allocatetarget ( size -- adr )
1.67      jwilke   1262:   dup allocate ABORT" CROSS: No memory for target"
                   1263:   swap over swap erase ;
1.52      jwilke   1264: 
1.54      pazsan   1265: \ \ memregion.fs
1.52      jwilke   1266: 
                   1267: 
                   1268: Variable last-defined-region    \ pointer to last defined region
                   1269: Variable region-link            \ linked list with all regions
                   1270: Variable mirrored-link          \ linked list for mirrored regions
                   1271: 0 dup mirrored-link ! region-link !
                   1272: 
1.139     jwilke   1273: : >rname 9 cells + ;
                   1274: : >rtouch 8 cells + ; \ executed when region is accessed
1.124     jwilke   1275: : >rbm   4 cells + ; \ bitfield per cell witch indicates relocation
1.103     jwilke   1276: : >rmem  5 cells + ;
1.124     jwilke   1277: : >rtype 6 cells + ; \ field per cell witch points to a type struct
                   1278: : >rrom 7 cells + ;  \ a -1 indicates that this region is rom
1.67      jwilke   1279: : >rlink 3 cells + ;
1.52      jwilke   1280: : >rdp 2 cells + ;
                   1281: : >rlen cell+ ;
                   1282: : >rstart ;
                   1283: 
1.113     jwilke   1284: : (region) ( addr len region -- )
                   1285: \G change startaddress and length of an existing region
                   1286:   >r r@ last-defined-region !
                   1287:   r@ >rlen ! dup r@ >rstart ! r> >rdp ! ;
1.52      jwilke   1288: 
1.139     jwilke   1289: : uninitialized -1 ABORT" CROSS: Region is uninitialized" ;
                   1290: 
1.123     jwilke   1291: : region ( addr len -- "name" )                
1.103     jwilke   1292: \G create a new region
1.52      jwilke   1293:   \ check whether predefined region exists 
                   1294:   save-input bl word find >r >r restore-input throw r> r> 0= 
                   1295:   IF   \ make region
                   1296:        drop
                   1297:        save-input create restore-input throw
                   1298:        here last-defined-region !
                   1299:        over ( startaddr ) , ( length ) , ( dp ) ,
1.139     jwilke   1300:        region-link linked 0 , 0 , 0 , 0 , 
                   1301:         ['] uninitialized ,
                   1302:         bl word count string,
1.52      jwilke   1303:   ELSE \ store new parameters in region
                   1304:         bl word drop
1.113     jwilke   1305:        >body (region)
1.52      jwilke   1306:   THEN ;
                   1307: 
1.103     jwilke   1308: : borders ( region -- startaddr endaddr ) 
                   1309: \G returns lower and upper region border
1.67      jwilke   1310:   dup >rstart @ swap >rlen @ over + ;
1.52      jwilke   1311: 
1.103     jwilke   1312: : extent  ( region -- startaddr len )   
                   1313: \G returns the really used area
1.67      jwilke   1314:   dup >rstart @ swap >rdp @ over - ;
1.52      jwilke   1315: 
1.103     jwilke   1316: : area ( region -- startaddr totallen ) 
                   1317: \G returns the total area
1.79      jwilke   1318:   dup >rstart @ swap >rlen @ ;
1.52      jwilke   1319: 
1.139     jwilke   1320: : dp@ ( region -- dp )
                   1321:   >rdp @ ;
                   1322: 
1.124     jwilke   1323: : mirrored ( -- )                              
                   1324: \G mark last defined region as mirrored
1.52      jwilke   1325:   mirrored-link
1.68      jwilke   1326:   align linked last-defined-region @ , ;
1.52      jwilke   1327: 
1.124     jwilke   1328: : writeprotected
                   1329: \G mark a region as write protected
                   1330:   -1 last-defined-region @ >rrom ! ;
                   1331: 
1.67      jwilke   1332: : .addr ( u -- )
                   1333: \G prints a 16 or 32 Bit nice hex value
1.52      jwilke   1334:   base @ >r hex
                   1335:   tcell 2 u>
1.77      jwilke   1336:   IF s>d <# # # # # [char] . hold # # # # #> type
1.52      jwilke   1337:   ELSE s>d <# # # # # # #> type
1.103     jwilke   1338:   THEN r> base ! space ;
1.52      jwilke   1339: 
                   1340: : .regions                      \G display region statistic
                   1341: 
                   1342:   \ we want to list the regions in the right order
                   1343:   \ so first collect all regions on stack
                   1344:   0 region-link @
                   1345:   BEGIN dup WHILE dup @ REPEAT drop
                   1346:   BEGIN dup
1.67      jwilke   1347:   WHILE cr
                   1348:         0 >rlink - >r
                   1349:         r@ >rname count tuck type
1.52      jwilke   1350:         12 swap - 0 max spaces space
1.67      jwilke   1351:         ." Start: " r@ >rstart @ dup .addr space
                   1352:         ." End: " r@ >rlen @ + .addr space
                   1353:         ." DP: " r> >rdp @ .addr
1.52      jwilke   1354:   REPEAT drop
1.53      jwilke   1355:   s" rom" T $has? H 0= ?EXIT
1.52      jwilke   1356:   cr ." Mirrored:"
                   1357:   mirrored-link @
                   1358:   BEGIN dup
1.67      jwilke   1359:   WHILE space dup cell+ @ >rname count type @
1.52      jwilke   1360:   REPEAT drop cr
                   1361:   ;
                   1362: 
                   1363: \ -------- predefined regions
                   1364: 
                   1365: 0 0 region address-space
                   1366: \ total memory addressed and used by the target system
                   1367: 
1.139     jwilke   1368: 0 0 region user-region
                   1369: \ data for user variables goes here
                   1370: \ this has to be defined before dictionary or ram-dictionary
                   1371: 
1.52      jwilke   1372: 0 0 region dictionary
                   1373: \ rom area for the compiler
                   1374: 
1.53      jwilke   1375: T has? rom H
1.52      jwilke   1376: [IF]
                   1377: 0 0 region ram-dictionary mirrored
                   1378: \ ram area for the compiler
                   1379: [ELSE]
                   1380: ' dictionary ALIAS ram-dictionary
                   1381: [THEN]
                   1382: 
                   1383: 0 0 region return-stack
                   1384: 
                   1385: 0 0 region data-stack
                   1386: 
                   1387: 0 0 region tib-region
                   1388: 
                   1389: ' dictionary ALIAS rom-dictionary
                   1390: 
1.139     jwilke   1391: : setup-region ( region -- )
                   1392:   >r
                   1393:   \ allocate mem
                   1394:   r@ >rlen @ allocatetarget
                   1395:   r@ >rmem !
                   1396: 
                   1397:   r@ >rlen @
                   1398:   target>bitmask-size allocatetarget
                   1399:   r@ >rbm !
                   1400: 
                   1401:   r@ >rlen @
                   1402:   tcell / 1+ cells allocatetarget r@ >rtype !
                   1403: 
                   1404:   ['] noop r@ >rtouch !
                   1405:   rdrop ;
1.52      jwilke   1406: 
1.105     jwilke   1407: : setup-target ( -- )   \G initialize target's memory space
1.53      jwilke   1408:   s" rom" T $has? H
1.52      jwilke   1409:   IF  \ check for ram and rom...
1.72      jwilke   1410:       \ address-space area nip 0<>
1.67      jwilke   1411:       ram-dictionary area nip 0<>
                   1412:       rom-dictionary area nip 0<>
1.72      jwilke   1413:       and 0=
1.52      jwilke   1414:       ABORT" CROSS: define address-space, rom- , ram-dictionary, with rom-support!"
                   1415:   THEN
                   1416:   address-space area nip
                   1417:   IF
                   1418:       address-space area
                   1419:   ELSE
                   1420:       dictionary area
                   1421:   THEN
1.67      jwilke   1422:   nip 0=
1.52      jwilke   1423:   ABORT" CROSS: define at least address-space or dictionary!!"
1.67      jwilke   1424: 
                   1425:   \ allocate target for each region
                   1426:   region-link
                   1427:   BEGIN @ dup
                   1428:   WHILE dup
                   1429:         0 >rlink - >r
                   1430:         r@ >rlen @
1.139     jwilke   1431:         IF      r@ setup-region
                   1432:         THEN    rdrop
1.72      jwilke   1433:    REPEAT drop ;
                   1434: 
1.105     jwilke   1435: \ MakeKernel                                                           22feb99jaw
1.72      jwilke   1436: 
1.134     pazsan   1437: : makekernel ( start targetsize -- )
1.113     jwilke   1438: \G convenience word to setup the memory of the target
                   1439: \G used by main.fs of the c-engine based systems
1.134     pazsan   1440:   dictionary (region) setup-target ;
1.72      jwilke   1441: 
                   1442: >MINIMAL
                   1443: : makekernel makekernel ;
                   1444: >CROSS
1.52      jwilke   1445: 
1.54      pazsan   1446: \ \ switched tdp for rom support                               03jun97jaw
1.52      jwilke   1447: 
                   1448: \ second value is here to store some maximal value for statistics
                   1449: \ tempdp is also embedded here but has nothing to do with rom support
                   1450: \ (needs switched dp)
                   1451: 
                   1452: variable tempdp        0 ,     \ temporary dp for resolving
                   1453: variable tempdp-save
                   1454: 
                   1455: 0 [IF]
                   1456: variable romdp 0 ,      \ Dictionary-Pointer for ramarea
                   1457: variable ramdp 0 ,      \ Dictionary-Pointer for romarea
                   1458: 
                   1459: \
                   1460: variable sramdp                \ start of ram-area for forth
                   1461: variable sromdp                \ start of rom-area for forth
                   1462: 
                   1463: [THEN]
                   1464: 
1.123     jwilke   1465: 0 Value current-region
                   1466: 0 Value tdp
                   1467: Variable fixed         \ flag: true: no automatic switching
1.52      jwilke   1468:                        \       false: switching is done automatically
                   1469: 
                   1470: \ Switch-Policy:
                   1471: \
                   1472: \ a header is always compiled into rom
                   1473: \ after a created word (create and variable) compilation goes to ram
                   1474: \
                   1475: \ Be careful: If you want to make the data behind create into rom
                   1476: \ you have to put >rom before create!
                   1477: 
                   1478: variable constflag constflag off
                   1479: 
1.67      jwilke   1480: : activate ( region -- )
                   1481: \G next code goes to this region
1.123     jwilke   1482:   dup to current-region >rdp to tdp ;
1.67      jwilke   1483: 
1.52      jwilke   1484: : (switchram)
1.53      jwilke   1485:   fixed @ ?EXIT s" rom" T $has? H 0= ?EXIT
1.67      jwilke   1486:   ram-dictionary activate ;
1.52      jwilke   1487: 
                   1488: : switchram
                   1489:   constflag @
                   1490:   IF constflag off ELSE (switchram) THEN ;
                   1491: 
                   1492: : switchrom
1.67      jwilke   1493:   fixed @ ?EXIT rom-dictionary activate ;
1.52      jwilke   1494: 
                   1495: : >tempdp ( addr -- ) 
                   1496:   tdp tempdp-save ! tempdp to tdp tdp ! ;
                   1497: : tempdp> ( -- )
                   1498:   tempdp-save @ to tdp ;
                   1499: 
                   1500: : >ram  fixed off (switchram) fixed on ;
                   1501: : >rom  fixed off switchrom fixed on ;
                   1502: : >auto fixed off switchrom ;
                   1503: 
                   1504: 
                   1505: 
                   1506: \ : romstart dup sromdp ! romdp ! ;
                   1507: \ : ramstart dup sramdp ! ramdp ! ;
                   1508: 
1.67      jwilke   1509: \ default compilation goes to rom
1.52      jwilke   1510: \ when romable support is off, only the rom switch is used (!!)
                   1511: >auto
                   1512: 
1.48      anton    1513: : there  tdp @ ;
                   1514: 
1.52      jwilke   1515: >TARGET
1.48      anton    1516: 
1.52      jwilke   1517: \ \ Target Memory Handling
1.1       anton    1518: 
                   1519: \ Byte ordering and cell size                          06oct92py
                   1520: 
1.19      pazsan   1521: : cell+         tcell + ;
                   1522: : cells         tcell<< lshift ;
1.71      jwilke   1523: : chars         tchar * ;
                   1524: : char+                tchar + ;
1.19      pazsan   1525: : floats       tfloat * ;
1.6       anton    1526:     
1.1       anton    1527: >CROSS
1.19      pazsan   1528: : cell/         tcell<< rshift ;
1.1       anton    1529: >TARGET
                   1530: 20 CONSTANT bl
1.52      jwilke   1531: \ TNIL Constant NIL
1.1       anton    1532: 
                   1533: >CROSS
                   1534: 
1.20      pazsan   1535: bigendian
                   1536: [IF]
1.106     jwilke   1537:    : DS!  ( d addr -- )  tcell bounds swap 1-
1.20      pazsan   1538:      DO  maxbyte ud/mod rot I c!  -1 +LOOP  2drop ;
1.106     jwilke   1539:    : DS@  ( addr -- d )  >r 0 0 r> tcell bounds
                   1540:      DO  maxbyte * swap maxbyte um* rot + swap I c@ + swap  LOOP ;
1.57      pazsan   1541:    : Sc!  ( n addr -- )  >r s>d r> tchar bounds swap 1-
                   1542:      DO  maxbyte ud/mod rot I c!  -1 +LOOP  2drop ;
                   1543:    : Sc@  ( addr -- n )  >r 0 0 r> tchar bounds
                   1544:      DO  maxbyte * swap maxbyte um* rot + swap I c@ + swap  LOOP d>s ;
1.19      pazsan   1545: [ELSE]
1.106     jwilke   1546:    : DS!  ( d addr -- )  tcell bounds
1.20      pazsan   1547:      DO  maxbyte ud/mod rot I c!  LOOP  2drop ;
1.106     jwilke   1548:    : DS@  ( addr -- n )  >r 0 0 r> tcell bounds swap 1-
                   1549:      DO  maxbyte * swap maxbyte um* rot + swap I c@ + swap  -1 +LOOP ;
1.57      pazsan   1550:    : Sc!  ( n addr -- )  >r s>d r> tchar bounds
                   1551:      DO  maxbyte ud/mod rot I c!  LOOP  2drop ;
                   1552:    : Sc@  ( addr -- n )  >r 0 0 r> tchar bounds swap 1-
                   1553:      DO  maxbyte * swap maxbyte um* rot + swap I c@ + swap  -1 +LOOP d>s ;
1.1       anton    1554: [THEN]
                   1555: 
1.106     jwilke   1556: : S! ( n addr -- ) >r s>d r> DS! ;
                   1557: : S@ ( addr -- n ) DS@ d>s ;
                   1558: 
1.67      jwilke   1559: : taddr>region ( taddr -- region | 0 )
                   1560: \G finds for a target-address the correct region
                   1561: \G returns 0 if taddr is not in range of a target memory region
                   1562:   region-link
                   1563:   BEGIN @ dup
                   1564:   WHILE dup >r
                   1565:         0 >rlink - >r
                   1566:         r@ >rlen @
                   1567:         IF      dup r@ borders within
1.139     jwilke   1568:                 IF r> r> drop nip 
                   1569:                    dup >rtouch @ EXECUTE EXIT 
                   1570:                 THEN
1.67      jwilke   1571:         THEN
                   1572:         r> drop
                   1573:         r>
                   1574:   REPEAT
                   1575:   2drop 0 ;
                   1576: 
1.103     jwilke   1577: : taddr>region-abort ( taddr -- region | 0 )
1.122     jwilke   1578: \G Same as taddr>region but aborts if taddr is not
                   1579: \G a valid address in the target address space
1.103     jwilke   1580:   dup taddr>region dup 0= 
                   1581:   IF    drop cr ." Wrong address: " .addr
                   1582:         -1 ABORT" Address out of range!"
                   1583:   THEN nip ;
                   1584: 
1.67      jwilke   1585: : (>regionimage) ( taddr -- 'taddr )
                   1586:   dup
                   1587:   \ find region we want to address
1.103     jwilke   1588:   taddr>region-abort
1.67      jwilke   1589:   >r
                   1590:   \ calculate offset in region
                   1591:   r@ >rstart @ -
                   1592:   \ add regions real address in our memory
                   1593:   r> >rmem @ + ;
                   1594: 
1.124     jwilke   1595: : (>regionramimage) ( taddr -- 'taddr )
                   1596: \G same as (>regionimage) but aborts if the region is rom
                   1597:   dup
                   1598:   \ find region we want to address
                   1599:   taddr>region-abort
                   1600:   >r
                   1601:   r@ >rrom @ ABORT" CROSS: region is write-protected!"
                   1602:   \ calculate offset in region
                   1603:   r@ >rstart @ -
                   1604:   \ add regions real address in our memory
                   1605:   r> >rmem @ + ;
                   1606: 
1.103     jwilke   1607: : (>regionbm) ( taddr -- 'taddr bitmaskbaseaddr )
                   1608:   dup
                   1609:   \ find region we want to address
                   1610:   taddr>region-abort
                   1611:   >r
                   1612:   \ calculate offset in region
                   1613:   r@ >rstart @ -
                   1614:   \ add regions real address in our memory
                   1615:   r> >rbm @ ;
                   1616: 
                   1617: : (>regiontype) ( taddr -- 'taddr )
                   1618:   dup
                   1619:   \ find region we want to address
                   1620:   taddr>region-abort
                   1621:   >r
                   1622:   \ calculate offset in region
                   1623:   r@ >rstart @ - tcell / cells
                   1624:   \ add regions real address in our memory
                   1625:   r> >rtype @ + ;
                   1626:   
1.1       anton    1627: \ Bit string manipulation                               06oct92py
                   1628: \                                                       9may93jaw
                   1629: CREATE Bittable 80 c, 40 c, 20 c, 10 c, 8 c, 4 c, 2 c, 1 c,
                   1630: : bits ( n -- n ) chars Bittable + c@ ;
                   1631: 
                   1632: : >bit ( addr n -- c-addr mask ) 8 /mod rot + swap bits ;
                   1633: : +bit ( addr n -- )  >bit over c@ or swap c! ;
1.4       pazsan   1634: : -bit ( addr n -- )  >bit invert over c@ and swap c! ;
1.67      jwilke   1635: 
1.103     jwilke   1636: : @relbit ( taddr -- f ) (>regionbm) swap cell/ >bit swap c@ and ;
                   1637: 
1.84      jwilke   1638: : (relon) ( taddr -- )  
                   1639:   [ [IFDEF] fd-relocation-table ]
                   1640:   s" +" fd-relocation-table write-file throw
                   1641:   dup s>d <# #s #> fd-relocation-table write-line throw
                   1642:   [ [THEN] ]
1.103     jwilke   1643:   (>regionbm) swap cell/ +bit ;
1.84      jwilke   1644: 
                   1645: : (reloff) ( taddr -- ) 
                   1646:   [ [IFDEF] fd-relocation-table ]
                   1647:   s" -" fd-relocation-table write-file throw
                   1648:   dup s>d <# #s #> fd-relocation-table write-line throw
                   1649:   [ [THEN] ]
1.103     jwilke   1650:   (>regionbm) swap cell/ -bit ;
1.67      jwilke   1651: 
                   1652: DEFER >image
1.124     jwilke   1653: DEFER >ramimage
1.67      jwilke   1654: DEFER relon
                   1655: DEFER reloff
                   1656: DEFER correcter
                   1657: 
                   1658: T has? relocate H
                   1659: [IF]
                   1660: ' (relon) IS relon
                   1661: ' (reloff) IS reloff
1.103     jwilke   1662: ' (>regionimage) IS >image
1.124     jwilke   1663: ' (>regionimage) IS >ramimage
1.67      jwilke   1664: [ELSE]
                   1665: ' drop IS relon
                   1666: ' drop IS reloff
1.68      jwilke   1667: ' (>regionimage) IS >image
1.124     jwilke   1668: ' (>regionimage) IS >ramimage
1.67      jwilke   1669: [THEN]
1.1       anton    1670: 
1.124     jwilke   1671: : enforce-writeprotection ( -- )
                   1672:   ['] (>regionramimage) IS >ramimage ;
                   1673: 
                   1674: : relax-writeprotection ( -- )
                   1675:   ['] (>regionimage) IS >ramimage ;
                   1676: 
                   1677: : writeprotection-relaxed? ( -- )
                   1678:   ['] >ramimage >body @ ['] (>regionimage) = ;
                   1679: 
1.1       anton    1680: \ Target memory access                                 06oct92py
                   1681: 
                   1682: : align+  ( taddr -- rest )
1.48      anton    1683:     tcell tuck 1- and - [ tcell 1- ] Literal and ;
1.22      anton    1684: : cfalign+  ( taddr -- rest )
1.39      pazsan   1685:     \ see kernel.fs:cfaligned
1.43      pazsan   1686:     /maxalign tuck 1- and - [ /maxalign 1- ] Literal and ;
1.1       anton    1687: 
                   1688: >TARGET
                   1689: : aligned ( taddr -- ta-addr )  dup align+ + ;
                   1690: \ assumes cell alignment granularity (as GNU C)
                   1691: 
1.22      anton    1692: : cfaligned ( taddr1 -- taddr2 )
1.39      pazsan   1693:     \ see kernel.fs
1.22      anton    1694:     dup cfalign+ + ;
                   1695: 
1.52      jwilke   1696: : @  ( taddr -- w )     >image S@ ;
1.124     jwilke   1697: : !  ( w taddr -- )     >ramimage S! ;
1.57      pazsan   1698: : c@ ( taddr -- char )  >image Sc@ ;
1.124     jwilke   1699: : c! ( char taddr -- )  >ramimage Sc! ;
1.7       anton    1700: : 2@ ( taddr -- x1 x2 ) T dup cell+ @ swap @ H ;
1.82      pazsan   1701: : 2! ( x1 x2 taddr -- ) T tuck ! cell+ ! H ;
1.1       anton    1702: 
                   1703: \ Target compilation primitives                        06oct92py
                   1704: \ included A!                                          16may93jaw
                   1705: 
                   1706: : here  ( -- there )    there ;
                   1707: : allot ( n -- )        tdp +! ;
1.78      jwilke   1708: : ,     ( w -- )        T here H tcell T allot  ! H ;
                   1709: : c,    ( char -- )     T here H tchar T allot c! H ;
                   1710: : align ( -- )          T here H align+ 0 ?DO  bl T c, H tchar +LOOP ;
1.22      anton    1711: : cfalign ( -- )
1.78      jwilke   1712:     T here H cfalign+ 0 ?DO  bl T c, H tchar +LOOP ;
1.1       anton    1713: 
1.71      jwilke   1714: : >address             dup 0>= IF tbyte / THEN ; \ ?? jaw 
1.59      pazsan   1715: : A!                    swap >address swap dup relon T ! H ;
                   1716: : A,    ( w -- )        >address T here H relon T , H ;
1.1       anton    1717: 
1.118     pazsan   1718: \ high-level ghosts
                   1719: 
                   1720: >CROSS
                   1721: 
                   1722: Ghost (do)      Ghost (?do)                     2drop
                   1723: Ghost (for)                                     drop
                   1724: Ghost (loop)    Ghost (+loop)                   2drop
                   1725: Ghost (next)                                    drop
1.146     anton    1726: Ghost (does>)   Ghost (does>1)  Ghost (does>2)  2drop drop
                   1727: Ghost compile,                                  drop
1.118     pazsan   1728: Ghost (.")      Ghost (S")      Ghost (ABORT")  2drop drop
1.130     pazsan   1729: Ghost (C")      Ghost c(abort") Ghost type      2drop drop
1.118     pazsan   1730: Ghost '                                         drop
                   1731: 
                   1732: \ user ghosts
                   1733: 
                   1734: Ghost state drop
1.103     jwilke   1735: 
                   1736: \ \ --------------------        Host/Target copy etc.          29aug01jaw
                   1737: 
                   1738: 
                   1739: >CROSS
                   1740: 
1.107     jwilke   1741: : TD! >image DS! ;
                   1742: : TD@ >image DS@ ;
                   1743: 
1.103     jwilke   1744: : th-count ( taddr -- host-addr len )
                   1745: \G returns host address of target string
                   1746:   assert1( tbyte 1 = )
                   1747:   dup X c@ swap X char+ >image swap ;
                   1748: 
                   1749: : ht-move ( haddr taddr len -- )
                   1750: \G moves data from host-addr to destination in target-addr
                   1751: \G character by character
                   1752:   swap -rot bounds ?DO I c@ over X c! X char+ LOOP drop ;
                   1753: 
                   1754: 2Variable last-string
1.157     pazsan   1755: X has? rom [IF] $60 [ELSE] $00 [THEN] Constant header-masks
1.103     jwilke   1756: 
1.157     pazsan   1757: : ht-header,  ( addr count -- )
                   1758:   dup there swap last-string 2!
                   1759:     dup header-masks or T c, H bounds  ?DO  I c@ T c, H  LOOP ;
1.103     jwilke   1760: : ht-string,  ( addr count -- )
                   1761:   dup there swap last-string 2!
1.130     pazsan   1762:     dup T c, H bounds  ?DO  I c@ T c, H  LOOP ;
                   1763: : ht-mem, ( addr count )
                   1764:     bounds ?DO  I c@  T c, H  LOOP ;
1.103     jwilke   1765: 
                   1766: >TARGET
                   1767: 
                   1768: : count dup X c@ swap X char+ swap ;
1.110     jwilke   1769: 
1.149     pazsan   1770: : on           >r -1 -1 r> TD!  ; 
1.103     jwilke   1771: : off          T 0 swap ! H ;
1.1       anton    1772: 
1.107     jwilke   1773: : tcmove ( source dest len -- )
                   1774: \G cmove in target memory
                   1775:   tchar * bounds
                   1776:   ?DO  dup T c@ H I T c! H 1+
                   1777:   tchar +LOOP  drop ;
                   1778: 
1.154     pazsan   1779: : tcallot ( char size -- )
                   1780:     0 ?DO  dup T c, H  tchar +LOOP  drop ;
                   1781: 
1.107     jwilke   1782: : td, ( d -- )
                   1783: \G Store a host value as one cell into the target
                   1784:   there tcell X allot TD! ;
                   1785: 
                   1786: \ \ Load Assembler
                   1787: 
                   1788: >TARGET
                   1789: H also Forth definitions
                   1790: 
                   1791: \ FIXME: should we include the assembler really in the forth 
                   1792: \ dictionary?!?!?!? This conflicts with the existing assembler 
                   1793: \ of the host forth system!!
                   1794: [IFDEF] asm-include asm-include [THEN] hex
                   1795: 
                   1796: previous
                   1797: 
                   1798: 
1.52      jwilke   1799: >CROSS
                   1800: 
1.103     jwilke   1801: : (cc) T a, H ;                                        ' (cc) plugin-of colon,
1.105     jwilke   1802: : (prim) T a, H ;                              ' (prim) plugin-of prim,
1.52      jwilke   1803: 
1.118     pazsan   1804: : (cr) >tempdp colon, tempdp> ;                 ' (cr) plugin-of colon-resolve
1.103     jwilke   1805: : (ar) T ! H ;                                 ' (ar) plugin-of addr-resolve
1.54      pazsan   1806: : (dr)  ( ghost res-pnt target-addr addr )
                   1807:        >tempdp drop over 
                   1808:        dup >magic @ <do:> =
                   1809:        IF      doer,
                   1810:        ELSE    dodoes,
                   1811:        THEN 
1.103     jwilke   1812:        tempdp> ;                               ' (dr) plugin-of doer-resolve
1.54      pazsan   1813: 
                   1814: : (cm) ( -- addr )
1.121     jwilke   1815:     there -1 colon, ;                          ' (cm) plugin-of colonmark,
1.1       anton    1816: 
1.52      jwilke   1817: >TARGET
1.105     jwilke   1818: : compile, ( xt -- )
1.107     jwilke   1819:   dup xt>ghost >comp @ EXECUTE ;
1.52      jwilke   1820: >CROSS
1.1       anton    1821: 
1.102     jwilke   1822: \ resolve structure
                   1823: 
                   1824: : >next ;              \ link to next field
                   1825: : >tag cell+ ;         \ indecates type of reference: 0: call, 1: address, 2: doer
                   1826: : >taddr cell+ cell+ ; 
                   1827: : >ghost 3 cells + ;
                   1828: : >file 4 cells + ;
                   1829: : >line 5 cells + ;
                   1830: 
                   1831: : (refered) ( ghost addr tag -- )
                   1832: \G creates a reference to ghost at address taddr
1.103     jwilke   1833:     >space
                   1834:     rot >link linked
1.102     jwilke   1835:     ( taddr tag ) ,
                   1836:     ( taddr ) , 
                   1837:     last-header-ghost @ , 
                   1838:     loadfile , 
                   1839:     sourceline# , 
1.103     jwilke   1840:     space>
1.118     pazsan   1841: ;
                   1842: 
1.52      jwilke   1843: : refered ( ghost tag -- )
1.53      jwilke   1844: \G creates a resolve structure
1.54      pazsan   1845:     T here aligned H swap (refered)
                   1846:   ;
                   1847: 
                   1848: : killref ( addr ghost -- )
                   1849: \G kills a forward reference to ghost at position addr
                   1850: \G this is used to eleminate a :dovar refence after making a DOES>
                   1851:     dup >magic @ <fwd> <> IF 2drop EXIT THEN
                   1852:     swap >r >link
                   1853:     BEGIN dup @ dup  ( addr last this )
                   1854:     WHILE dup >taddr @ r@ =
                   1855:         IF   @ over !
                   1856:         ELSE nip THEN
                   1857:     REPEAT rdrop 2drop 
1.53      jwilke   1858:   ;
1.48      anton    1859: 
1.52      jwilke   1860: Defer resolve-warning
1.1       anton    1861: 
1.52      jwilke   1862: : reswarn-test ( ghost res-struct -- ghost res-struct )
1.78      jwilke   1863:   over cr ." Resolving " .ghost dup ."  in " >ghost @ .ghost ;
1.1       anton    1864: 
1.52      jwilke   1865: : reswarn-forward ( ghost res-struct -- ghost res-struct )
1.78      jwilke   1866:   over warnhead .ghost dup ."  is referenced in " 
                   1867:   >ghost @ .ghost ;
1.1       anton    1868: 
1.52      jwilke   1869: \ ' reswarn-test IS resolve-warning
                   1870:  
1.1       anton    1871: \ resolve                                              14oct92py
                   1872: 
1.54      pazsan   1873:  : resolve-loop ( ghost resolve-list tcfa -- )
                   1874:     >r
                   1875:     BEGIN dup WHILE 
                   1876: \        dup >tag @ 2 = IF reswarn-forward THEN
                   1877:          resolve-warning 
                   1878:          r@ over >taddr @ 
                   1879:          2 pick >tag @
                   1880:          CASE  0 OF colon-resolve ENDOF
                   1881:                1 OF addr-resolve ENDOF
                   1882:                2 OF doer-resolve ENDOF
                   1883:          ENDCASE
                   1884:          @ \ next list element
                   1885:     REPEAT 2drop rdrop 
                   1886:   ;
1.52      jwilke   1887: 
                   1888: \ : resolve-loop ( ghost tcfa -- ghost tcfa )
                   1889: \  >r dup >link @
                   1890: \  BEGIN  dup  WHILE  dup T @ H r@ rot T ! H REPEAT  drop r> ;
1.1       anton    1891: 
                   1892: \ exists                                                9may93jaw
                   1893: 
1.103     jwilke   1894: : exists ( ghost tcfa -- )
                   1895: \G print warning and set new target link in ghost
                   1896:   swap exists-warning
                   1897:   >link ! ;
1.52      jwilke   1898: 
1.105     jwilke   1899: : colon-resolved   ( ghost -- )
1.121     jwilke   1900: \ compiles a call to a colon definition,
                   1901: \ compile action for >comp field
                   1902:     >link @ colon, ; 
1.105     jwilke   1903: 
                   1904: : prim-resolved  ( ghost -- )
1.121     jwilke   1905: \ compiles a call to a primitive
1.105     jwilke   1906:     >link @ prim, ;
                   1907: 
1.121     jwilke   1908: : (is-forward)   ( ghost -- )
                   1909:     colonmark, 0 (refered) ; \ compile space for call
                   1910: ' (is-forward) IS is-forward
                   1911: 
1.118     pazsan   1912: 0 Value resolved
1.1       anton    1913: 
1.122     jwilke   1914: : resolve-forward-references ( ghost resolve-list -- )
                   1915:     \ loop through forward referencies
                   1916:     comp-state @ >r Resolving comp-state !
                   1917:     over >link @ resolve-loop 
                   1918:     r> comp-state !
                   1919: 
                   1920:     ['] noop IS resolve-warning ;
                   1921: 
                   1922: 
                   1923: : (resolve) ( ghost tcfa -- ghost resolve-list )
                   1924:     \ check for a valid address, it is a primitive reference
                   1925:     \ otherwise
1.103     jwilke   1926:     dup taddr>region 0<> IF
1.122     jwilke   1927:       \ define this address in the region address type table
1.103     jwilke   1928:       2dup (>regiontype) define-addr-struct addr-xt-ghost 
                   1929:       \ we define new address only if empty
1.105     jwilke   1930:       \ this is for not to take over the alias ghost
                   1931:       \ (different ghost, but identical xt)
1.103     jwilke   1932:       \ but the very first that really defines it
                   1933:       dup @ 0= IF ! ELSE 2drop THEN
                   1934:     THEN
1.122     jwilke   1935:     swap >r
1.118     pazsan   1936:     r@ to resolved
1.121     jwilke   1937: 
                   1938: \    r@ >comp @ ['] is-forward =
                   1939: \    ABORT" >comp action not set on a resolved ghost"
                   1940: 
                   1941:     \ copmile action defaults to colon-resolved
                   1942:     \ if this is not right something must be set before
                   1943:     \ calling resolve
                   1944:     r@ >comp @ ['] is-forward = IF
1.122     jwilke   1945:        ['] colon-resolved r@ >comp !
                   1946:    THEN
                   1947:     r@ >link @ swap \ ( list tcfa R: ghost )
                   1948:     \ mark ghost as resolved
                   1949:     r@ >link ! <res> r@ >magic !
                   1950:     r> swap ;
1.54      pazsan   1951: 
1.122     jwilke   1952: : resolve  ( ghost tcfa -- )
                   1953: \G resolve referencies to ghost with tcfa
                   1954:     \ is ghost resolved?, second resolve means another 
                   1955:     \ definition with the same name
                   1956:     over undefined? 0= IF  exists EXIT THEN
                   1957:     (resolve)
                   1958:     ( ghost resolve-list )
                   1959:     resolve-forward-references ;
                   1960: 
                   1961: : resolve-noforwards ( ghost tcfa -- )
                   1962: \G Same as resolve but complain if there are any
                   1963: \G forward references on this ghost
                   1964:    \ is ghost resolved?, second resolve means another 
                   1965:    \ definition with the same name
                   1966:    over undefined? 0= IF  exists EXIT THEN
                   1967:    (resolve)
                   1968:    IF cr ." No forward references allowed on: " .ghost cr
                   1969:       -1 ABORT" Illegal forward reference"
                   1970:    THEN
                   1971:    drop ;
1.1       anton    1972: 
                   1973: \ gexecute ghost,                                      01nov92py
                   1974: 
1.103     jwilke   1975: : (gexecute)   ( ghost -- )
1.105     jwilke   1976:   dup >comp @ EXECUTE ;
1.103     jwilke   1977: 
                   1978: : gexecute ( ghost -- )
1.120     jwilke   1979:   dup >magic @ <imm> = ABORT" CROSS: gexecute on immediate word"
1.103     jwilke   1980:   (gexecute) ;
1.52      jwilke   1981: 
                   1982: : addr,  ( ghost -- )
1.105     jwilke   1983:   dup forward? IF  1 refered 0 T a, H ELSE >link @ T a, H THEN ;
1.52      jwilke   1984: 
1.1       anton    1985: \ .unresolved                                          11may93jaw
                   1986: 
                   1987: variable ResolveFlag
                   1988: 
                   1989: \ ?touched                                             11may93jaw
                   1990: 
1.52      jwilke   1991: : ?touched ( ghost -- flag ) dup forward? swap >link @
1.1       anton    1992:                                0 <> and ;
                   1993: 
1.53      jwilke   1994: : .forwarddefs ( ghost -- )
1.103     jwilke   1995:   ."  appeared in:"
                   1996:   >link
                   1997:   BEGIN        @ dup
                   1998:   WHILE        cr 5 spaces
                   1999:        dup >ghost @ .ghost
                   2000:        ."  file " dup >file @ ?dup IF count type ELSE ." CON" THEN
                   2001:        ."  line " dup >line @ .dec
                   2002:   REPEAT 
                   2003:   drop ;
                   2004: 
                   2005: : ?resolved  ( ghost -- )
                   2006:   dup ?touched
                   2007:   IF   ResolveFlag on 
                   2008:        dup cr .ghost .forwarddefs
1.53      jwilke   2009:   ELSE         drop 
                   2010:   THEN ;
1.1       anton    2011: 
                   2012: : .unresolved  ( -- )
                   2013:   ResolveFlag off cr ." Unresolved: "
1.103     jwilke   2014:   ghost-list
1.1       anton    2015:   BEGIN @ dup
                   2016:   WHILE dup ?resolved
1.10      anton    2017:   REPEAT drop ResolveFlag @
                   2018:   IF
1.48      anton    2019:       -1 abort" Unresolved words!"
1.10      anton    2020:   ELSE
                   2021:       ." Nothing!"
                   2022:   THEN
                   2023:   cr ;
1.1       anton    2024: 
1.52      jwilke   2025: : .stats
                   2026:   base @ >r decimal
                   2027:   cr ." named Headers: " headers-named @ . 
                   2028:   r> base ! ;
                   2029: 
1.79      jwilke   2030: >MINIMAL
                   2031: 
                   2032: : .unresolved .unresolved ;
                   2033: 
1.1       anton    2034: >CROSS
                   2035: \ Header states                                        12dec92py
                   2036: 
1.102     jwilke   2037: \ : flag! ( 8b -- )   tlast @ dup >r T c@ xor r> c! H ;
1.142     pazsan   2038: X has? f83headerstring bigendian or [IF] 0 [ELSE] tcell 1- [THEN] Constant flag+
1.90      pazsan   2039: : flag! ( w -- )   tlast @ flag+ + dup >r T c@ xor r> c! H ;
1.1       anton    2040: 
                   2041: VARIABLE ^imm
                   2042: 
1.105     jwilke   2043: \ !! should be target wordsize specific
                   2044: $80 constant alias-mask
                   2045: $40 constant immediate-mask
                   2046: $20 constant restrict-mask
                   2047: 
1.1       anton    2048: >TARGET
1.105     jwilke   2049: : immediate     immediate-mask flag!
1.18      pazsan   2050:                 ^imm @ @ dup <imm> = IF  drop  EXIT  THEN
1.1       anton    2051:                 <res> <> ABORT" CROSS: Cannot immediate a unresolved word"
                   2052:                 <imm> ^imm @ ! ;
1.105     jwilke   2053: : restrict      restrict-mask flag! ;
1.52      jwilke   2054: 
1.54      pazsan   2055: : isdoer       
                   2056: \G define a forth word as doer, this makes obviously only sence on
                   2057: \G forth processors such as the PSC1000
                   2058:                <do:> last-header-ghost @ >magic ! ;
1.1       anton    2059: >CROSS
                   2060: 
                   2061: \ Target Header Creation                               01nov92py
                   2062: 
1.103     jwilke   2063: : ht-lstring, ( addr count -- )
1.102     jwilke   2064:   dup T , H bounds  ?DO  I c@ T c, H  LOOP ;
                   2065: 
1.103     jwilke   2066: >TARGET
1.139     jwilke   2067: X has? f83headerstring [IF]
1.157     pazsan   2068: : name,  ( "name" -- )  bl word count ht-header, X cfalign ;
1.139     jwilke   2069: [ELSE]
1.103     jwilke   2070: : name,  ( "name" -- )  bl word count ht-lstring, X cfalign ;
1.139     jwilke   2071: [THEN]
1.1       anton    2072: : view,   ( -- ) ( dummy ) ;
1.52      jwilke   2073: >CROSS
1.1       anton    2074: 
1.25      pazsan   2075: \ Target Document Creation (goes to crossdoc.fd)       05jul95py
                   2076: 
1.55      pazsan   2077: s" ./doc/crossdoc.fd" r/w create-file throw value doc-file-id
1.25      pazsan   2078: \ contains the file-id of the documentation file
                   2079: 
1.40      pazsan   2080: : T-\G ( -- )
1.25      pazsan   2081:     source >in @ /string doc-file-id write-line throw
1.40      pazsan   2082:     postpone \ ;
1.25      pazsan   2083: 
1.39      pazsan   2084: Variable to-doc  to-doc on
1.25      pazsan   2085: 
                   2086: : cross-doc-entry  ( -- )
                   2087:     to-doc @ tlast @ 0<> and   \ not an anonymous (i.e. noname) header
                   2088:     IF
                   2089:        s" " doc-file-id write-line throw
                   2090:        s" make-doc " doc-file-id write-file throw
1.102     jwilke   2091: 
1.105     jwilke   2092:        Last-Header-Ghost @ >ghostname doc-file-id write-file throw
1.25      pazsan   2093:        >in @
                   2094:        [char] ( parse 2drop
                   2095:        [char] ) parse doc-file-id write-file throw
                   2096:        s"  )" doc-file-id write-file throw
                   2097:        [char] \ parse 2drop                                    
1.40      pazsan   2098:        T-\G
1.25      pazsan   2099:        >in !
1.39      pazsan   2100:     THEN ;
1.25      pazsan   2101: 
1.28      pazsan   2102: \ Target TAGS creation
                   2103: 
1.39      pazsan   2104: s" kernel.TAGS" r/w create-file throw value tag-file-id
1.116     pazsan   2105: s" kernel.tags" r/w create-file throw value vi-tag-file-id
1.28      pazsan   2106: \ contains the file-id of the tags file
                   2107: 
1.137     anton    2108: Create tag-beg 1 c,  7F c,
                   2109: Create tag-end 1 c,  01 c,
1.28      pazsan   2110: Create tag-bof 1 c,  0C c,
1.116     pazsan   2111: Create tag-tab 1 c,  09 c,
1.28      pazsan   2112: 
                   2113: 2variable last-loadfilename 0 0 last-loadfilename 2!
                   2114:            
                   2115: : put-load-file-name ( -- )
1.77      jwilke   2116:     sourcefilename last-loadfilename 2@ d<>
1.28      pazsan   2117:     IF
                   2118:        tag-bof count tag-file-id write-line throw
1.31      anton    2119:        sourcefilename 2dup
1.28      pazsan   2120:        tag-file-id write-file throw
                   2121:        last-loadfilename 2!
                   2122:        s" ,0" tag-file-id write-line throw
                   2123:     THEN ;
                   2124: 
1.116     pazsan   2125: : cross-gnu-tag-entry  ( -- )
1.28      pazsan   2126:     tlast @ 0<>        \ not an anonymous (i.e. noname) header
                   2127:     IF
                   2128:        put-load-file-name
                   2129:        source >in @ min tag-file-id write-file throw
                   2130:        tag-beg count tag-file-id write-file throw
1.116     pazsan   2131:        Last-Header-Ghost @ >ghostname tag-file-id write-file throw
1.28      pazsan   2132:        tag-end count tag-file-id write-file throw
1.31      anton    2133:        base @ decimal sourceline# 0 <# #s #> tag-file-id write-file throw
1.28      pazsan   2134: \      >in @ 0 <# #s [char] , hold #> tag-file-id write-line throw
                   2135:        s" ,0" tag-file-id write-line throw
                   2136:        base !
                   2137:     THEN ;
1.116     pazsan   2138: 
                   2139: : cross-vi-tag-entry ( -- )
                   2140:     tlast @ 0<>        \ not an anonymous (i.e. noname) header
                   2141:     IF
                   2142:        sourcefilename vi-tag-file-id write-file throw
                   2143:        tag-tab count vi-tag-file-id write-file throw
                   2144:        Last-Header-Ghost @ >ghostname vi-tag-file-id write-file throw
                   2145:        tag-tab count vi-tag-file-id write-file throw
                   2146:        s" /^" vi-tag-file-id write-file throw
                   2147:        source vi-tag-file-id write-file throw
                   2148:        s" $/" vi-tag-file-id write-line throw
                   2149:     THEN ;
                   2150: 
                   2151: : cross-tag-entry ( -- )
                   2152:     cross-gnu-tag-entry
                   2153:     cross-vi-tag-entry ;
1.28      pazsan   2154: 
1.43      pazsan   2155: \ Check for words
                   2156: 
                   2157: Defer skip? ' false IS skip?
                   2158: 
1.103     jwilke   2159: : skipdef ( "name" -- )
1.79      jwilke   2160: \G skip definition of an undefined word in undef-words and
                   2161: \G all-words mode
1.103     jwilke   2162:     Ghost dup forward?
1.75      jwilke   2163:     IF  >magic <skip> swap !
                   2164:     ELSE drop THEN ;
                   2165: 
1.103     jwilke   2166: : tdefined? ( "name" -- flag ) 
                   2167:     Ghost undefined? 0= ;
1.75      jwilke   2168: 
1.103     jwilke   2169: : defined2? ( "name" -- flag ) 
1.75      jwilke   2170: \G return true for anything else than forward, even for <skip>
                   2171: \G that's what we want
1.103     jwilke   2172:     Ghost forward? 0= ;
1.43      pazsan   2173: 
1.103     jwilke   2174: : forced? ( "name" -- flag )
1.79      jwilke   2175: \G return ture if it is a foreced skip with defskip
1.103     jwilke   2176:     Ghost >magic @ <skip> = ;
1.79      jwilke   2177: 
1.43      pazsan   2178: : needed? ( -- flag ) \ name
1.48      anton    2179: \G returns a false flag when
                   2180: \G a word is not defined
                   2181: \G a forward reference exists
                   2182: \G so the definition is not skipped!
                   2183:     bl word gfind
1.75      jwilke   2184:     IF dup undefined?
1.48      anton    2185:        nip
                   2186:        0=
                   2187:     ELSE  drop true  THEN ;
1.43      pazsan   2188: 
1.139     jwilke   2189: : doer? ( "name" -- 0 | addr ) \ name
                   2190:     Ghost dup >magic @ <do:> = 
                   2191:     IF >link @ ELSE drop 0 THEN ;
1.44      pazsan   2192: 
1.43      pazsan   2193: : skip-defs ( -- )
                   2194:     BEGIN  refill  WHILE  source -trailing nip 0= UNTIL  THEN ;
                   2195: 
1.28      pazsan   2196: \ Target header creation
                   2197: 
1.54      pazsan   2198: Variable NoHeaderFlag
                   2199: NoHeaderFlag off
1.1       anton    2200: 
1.54      pazsan   2201: : 0.r ( n1 n2 -- ) 
                   2202:     base @ >r hex 
                   2203:     0 swap <# 0 ?DO # LOOP #> type 
                   2204:     r> base ! ;
1.84      jwilke   2205: 
                   2206: : .sym ( adr len -- )
                   2207: \G escapes / and \ to produce sed output
1.52      jwilke   2208:   bounds 
                   2209:   DO I c@ dup
1.77      jwilke   2210:        CASE    [char] / OF drop ." \/" ENDOF
                   2211:                [char] \ OF drop ." \\" ENDOF
1.52      jwilke   2212:                dup OF emit ENDOF
                   2213:        ENDCASE
1.54      pazsan   2214:     LOOP ;
1.52      jwilke   2215: 
1.147     pazsan   2216: Defer setup-execution-semantics  ' noop IS setup-execution-semantics
1.103     jwilke   2217: 0 Value lastghost
                   2218: 
                   2219: : (THeader ( "name" -- ghost )
1.54      pazsan   2220:     \  >in @ bl word count type 2 spaces >in !
                   2221:     \ wordheaders will always be compiled to rom
                   2222:     switchrom
                   2223:     \ build header in target
                   2224:     NoHeaderFlag @
                   2225:     IF  NoHeaderFlag off
                   2226:     ELSE
                   2227:        T align H view,
1.78      jwilke   2228:        tlast @ dup 0> IF tcell - THEN T A, H  there tlast !
1.54      pazsan   2229:        1 headers-named +!      \ Statistic
                   2230:        >in @ T name, H >in !
                   2231:     THEN
                   2232:     T cfalign here H tlastcfa !
1.84      jwilke   2233:     \ Old Symbol table sed-script
1.54      pazsan   2234: \    >in @ cr ." sym:s/CFA=" there 4 0.r ." /"  bl word count .sym ." /g" cr >in !
1.103     jwilke   2235:     HeaderGhost
1.84      jwilke   2236:     \ output symbol table to extra file
1.123     jwilke   2237:     dup >ghostname there symentry
1.103     jwilke   2238:     dup Last-Header-Ghost ! dup to lastghost
1.54      pazsan   2239:     dup >magic ^imm !     \ a pointer for immediate
1.105     jwilke   2240:     alias-mask flag!
1.103     jwilke   2241:     cross-doc-entry cross-tag-entry 
                   2242:     setup-execution-semantics
                   2243:     ;
1.1       anton    2244: 
1.52      jwilke   2245: \ this is the resolver information from ":"
                   2246: \ resolving is done by ";"
1.103     jwilke   2247: Variable ;Resolve 1 cells allot
                   2248: 
                   2249: : hereresolve ( ghost -- )
                   2250:   there resolve 0 ;Resolve ! ;
1.1       anton    2251: 
1.11      pazsan   2252: : Theader  ( "name" -- ghost )
1.103     jwilke   2253:   (THeader dup hereresolve ;
                   2254: 
                   2255: Variable aprim-nr -20 aprim-nr !
                   2256: 
                   2257: : copy-execution-semantics ( ghost-from ghost-dest -- )
                   2258:   >r
                   2259:   dup >exec @ r@ >exec !
1.117     pazsan   2260:   dup >comp @ r@ >comp !
1.103     jwilke   2261:   dup >exec2 @ r@ >exec2 !
                   2262:   dup >exec-compile @ r@ >exec-compile !
                   2263:   dup >ghost-xt @ r@ >ghost-xt !
                   2264:   dup >created @ r@ >created !
                   2265:   rdrop drop ;
1.1       anton    2266: 
                   2267: >TARGET
1.103     jwilke   2268: 
1.1       anton    2269: : Alias    ( cfa -- ) \ name
1.103     jwilke   2270:   >in @ skip? IF  2drop  EXIT  THEN  >in !
                   2271:   (THeader ( S xt ghost )
1.105     jwilke   2272:   2dup swap xt>ghost swap copy-execution-semantics
                   2273:   over resolve T A, H alias-mask flag! ;
1.103     jwilke   2274: 
                   2275: Variable last-prim-ghost
                   2276: 0 last-prim-ghost !
                   2277: 
                   2278: : asmprimname, ( ghost -- : name ) 
                   2279:   dup last-prim-ghost !
                   2280:   >r
                   2281:   here bl word count string, r@ >asm-name !
                   2282:   aprim-nr @ r> >asm-dummyaddr ! ;
                   2283: 
                   2284: Defer setup-prim-semantics
                   2285: 
1.112     jwilke   2286: : mapprim   ( "forthname" "asmlabel" -- ) 
1.103     jwilke   2287:   THeader -1 aprim-nr +! aprim-nr @ T A, H
                   2288:   asmprimname, 
                   2289:   setup-prim-semantics ;
                   2290: 
1.112     jwilke   2291: : mapprim:   ( "forthname" "asmlabel" -- ) 
1.103     jwilke   2292:   -1 aprim-nr +! aprim-nr @
1.122     jwilke   2293:   Ghost tuck swap resolve-noforwards <do:> swap tuck >magic !
1.103     jwilke   2294:   asmprimname, ;
                   2295: 
1.119     pazsan   2296: : Doer:   ( cfa -- ) \ name
1.103     jwilke   2297:   >in @ skip? IF  2drop  EXIT  THEN  >in !
                   2298:   dup 0< s" prims" T $has? H 0= and
                   2299:   IF
                   2300:       .sourcepos ." needs doer: " >in @ bl word count type >in ! cr
                   2301:   THEN
1.119     pazsan   2302:   Ghost
1.122     jwilke   2303:   tuck swap resolve-noforwards <do:> swap >magic ! ;
1.64      pazsan   2304: 
                   2305: Variable prim#
                   2306: : first-primitive ( n -- )  prim# ! ;
1.132     pazsan   2307: : group 0 word drop prim# @ 1- -$200 and prim# ! ;
1.140     pazsan   2308: : groupadd  ( n -- )  drop ;
1.64      pazsan   2309: : Primitive  ( -- ) \ name
1.117     pazsan   2310:   >in @ skip? IF  drop  EXIT  THEN  >in !
                   2311:   s" prims" T $has? H 0=
1.103     jwilke   2312:   IF
                   2313:      .sourcepos ." needs prim: " >in @ bl word count type >in ! cr
                   2314:   THEN
                   2315:   prim# @ (THeader ( S xt ghost )
1.121     jwilke   2316:   ['] prim-resolved over >comp !
1.105     jwilke   2317:   dup >ghost-flags <primitive> set-flag
1.122     jwilke   2318:   over resolve-noforwards T A, H alias-mask flag!
1.103     jwilke   2319:   -1 prim# +! ;
1.1       anton    2320: >CROSS
                   2321: 
                   2322: \ Conditionals and Comments                            11may93jaw
                   2323: 
1.103     jwilke   2324: \G saves the existing cond action, this is used for redefining in
                   2325: \G instant
                   2326: Variable cond-xt-old
                   2327: 
                   2328: : cond-target ( -- )
                   2329: \G Compiles semantic of redefined cond into new one
                   2330:   cond-xt-old @ compile, ; immediate restrict
                   2331: 
1.1       anton    2332: : ;Cond
                   2333:   postpone ;
                   2334:   swap ! ;  immediate
                   2335: 
1.103     jwilke   2336: : Cond: ( "name" -- ) 
                   2337: \g defines a conditional or another word that must
                   2338: \g be executed directly while compiling
                   2339: \g these words have no interpretative semantics by default
                   2340:   Ghost
                   2341:   >exec-compile
                   2342:   dup @ cond-xt-old !
1.1       anton    2343:   :NONAME ;
                   2344: 
                   2345: 
                   2346: : Comment ( -- )
1.103     jwilke   2347:   >in @ Ghost swap >in ! ' swap 
                   2348:   2dup >exec-compile ! >exec ! ;
1.1       anton    2349: 
                   2350: Comment (       Comment \
                   2351: 
                   2352: \ compile                                              10may93jaw
                   2353: 
1.103     jwilke   2354: : compile  ( "name" -- ) \ name
1.115     jwilke   2355:   findghost
1.103     jwilke   2356:   dup >exec-compile @ ?dup
                   2357:   IF    nip compile,
                   2358:   ELSE  postpone literal postpone gexecute  THEN ;  immediate restrict
                   2359:             
1.52      jwilke   2360: >TARGET
                   2361: 
1.105     jwilke   2362: : '  ( -- xt ) 
                   2363: \G returns the target-cfa of a ghost
1.52      jwilke   2364:   bl word gfind 0= ABORT" CROSS: Ghost don't exists"
1.105     jwilke   2365:   g>xt ;
1.52      jwilke   2366: 
1.103     jwilke   2367: \ FIXME: this works for the current use cases, but is not
                   2368: \ in all cases correct ;-) 
                   2369: : comp' X ' 0 ;
                   2370: 
1.52      jwilke   2371: Cond: [']  T ' H alit, ;Cond
                   2372: 
                   2373: >CROSS
                   2374: 
                   2375: : [T']
                   2376: \ returns the target-cfa of a ghost, or compiles it as literal
1.115     jwilke   2377:   postpone [G'] 
                   2378:   state @ IF postpone g>xt ELSE g>xt THEN ; immediate
1.42      pazsan   2379: 
1.52      jwilke   2380: \ \ threading modell                                   13dec92py
                   2381: \ modularized                                          14jun97jaw
                   2382: 
1.106     jwilke   2383: T 2 cells H Value xt>body
1.52      jwilke   2384: 
1.103     jwilke   2385: : (>body)   ( cfa -- pfa ) 
1.105     jwilke   2386:   xt>body + ;                                          ' (>body) plugin-of t>body
                   2387: 
                   2388: : fillcfa   ( usedcells -- )
1.106     jwilke   2389:   T cells H xt>body swap -
1.105     jwilke   2390:   assert1( dup 0 >= )
                   2391:   0 ?DO 0 X c, tchar +LOOP ;
1.52      jwilke   2392: 
1.103     jwilke   2393: : (doer,)   ( ghost -- ) 
1.105     jwilke   2394:   addr, 1 fillcfa ;                                    ' (doer,) plugin-of doer,
1.52      jwilke   2395: 
1.105     jwilke   2396: : (docol,)  ( -- ) [G'] :docol (doer,) ;               ' (docol,) plugin-of docol,
1.52      jwilke   2397: 
1.121     jwilke   2398:                                                         ' NOOP plugin-of ca>native
                   2399: 
1.52      jwilke   2400: : (doprim,) ( -- )
1.105     jwilke   2401:   there xt>body + ca>native T a, H 1 fillcfa ;         ' (doprim,) plugin-of doprim,
1.52      jwilke   2402: 
                   2403: : (doeshandler,) ( -- ) 
1.119     pazsan   2404:   T cfalign H [G'] :doesjump addr, T 0 , H ;           ' (doeshandler,) plugin-of doeshandler,
1.52      jwilke   2405: 
                   2406: : (dodoes,) ( does-action-ghost -- )
1.119     pazsan   2407:   ]comp [G'] :dodoes addr, comp[
1.52      jwilke   2408:   addr,
1.103     jwilke   2409:   \ the relocator in the c engine, does not like the
                   2410:   \ does-address to marked for relocation
                   2411:   [ T e? ec H 0= [IF] ] T here H tcell - reloff [ [THEN] ]
1.105     jwilke   2412:   2 fillcfa ;                                          ' (dodoes,) plugin-of dodoes,
1.52      jwilke   2413: 
1.107     jwilke   2414: : (dlit,) ( n -- ) compile lit td, ;                   ' (dlit,) plugin-of dlit,
                   2415: 
                   2416: : (lit,) ( n -- )  s>d dlit, ;                         ' (lit,) plugin-of lit,
1.52      jwilke   2417: 
1.67      jwilke   2418: \ if we dont produce relocatable code alit, defaults to lit, jaw
1.84      jwilke   2419: \ this is just for convenience, so we don't have to define alit,
                   2420: \ seperately for embedded systems....
                   2421: T has? relocate H
1.67      jwilke   2422: [IF]
1.105     jwilke   2423: : (alit,) ( n -- )  compile lit T  a, H ;              ' (alit,) plugin-of alit,
1.67      jwilke   2424: [ELSE]
1.105     jwilke   2425: : (alit,) ( n -- )  lit, ;                             ' (alit,) plugin-of alit,
1.67      jwilke   2426: [THEN]
1.52      jwilke   2427: 
1.105     jwilke   2428: : (fini,)         compile ;s ;                         ' (fini,) plugin-of fini,
1.42      pazsan   2429: 
1.43      pazsan   2430: [IFUNDEF] (code) 
                   2431: Defer (code)
                   2432: Defer (end-code)
                   2433: [THEN]
                   2434: 
1.1       anton    2435: >TARGET
1.43      pazsan   2436: : Code
1.52      jwilke   2437:   defempty?
1.121     jwilke   2438:   (THeader ( ghost )
                   2439:   ['] prim-resolved over >comp !
1.122     jwilke   2440:   there resolve-noforwards
1.121     jwilke   2441:   
1.53      jwilke   2442:   [ T e? prims H 0= [IF] T e? ITC H [ELSE] true [THEN] ] [IF]
1.52      jwilke   2443:   doprim, 
1.48      anton    2444:   [THEN]
                   2445:   depth (code) ;
1.43      pazsan   2446: 
1.121     jwilke   2447: \ FIXME : no-compile -1 ABORT" this ghost is not for compilation" ;
                   2448: 
1.43      pazsan   2449: : Code:
1.52      jwilke   2450:   defempty?
1.121     jwilke   2451:     Ghost >r 
1.123     jwilke   2452:     r@ >ghostname there symentry
1.122     jwilke   2453:     r@ there ca>native resolve-noforwards
1.121     jwilke   2454:     <do:> r@ >magic !
                   2455:     r> drop
1.43      pazsan   2456:     depth (code) ;
                   2457: 
                   2458: : end-code
1.52      jwilke   2459:     (end-code)
1.43      pazsan   2460:     depth ?dup IF   1- <> ABORT" CROSS: Stack changed"
                   2461:     ELSE true ABORT" CROSS: Stack empty" THEN
1.52      jwilke   2462:     ;
1.14      anton    2463: 
1.1       anton    2464: >CROSS
1.52      jwilke   2465: 
1.1       anton    2466: \ tLiteral                                             12dec92py
                   2467: 
                   2468: >TARGET
1.40      pazsan   2469: Cond: \G  T-\G ;Cond
                   2470: 
1.105     jwilke   2471: Cond: Literal  ( n -- )   lit, ;Cond
1.103     jwilke   2472: Cond: ALiteral ( n -- )   alit, ;Cond
1.1       anton    2473: 
                   2474: : Char ( "<char>" -- )  bl word char+ c@ ;
1.103     jwilke   2475: Cond: [Char]   ( "<char>" -- )  Char  lit, ;Cond
                   2476: 
1.139     jwilke   2477: : (x#) ( adr len base -- )
                   2478:   base @ >r base ! 0 0 name >number 2drop drop r> base ! ;
                   2479: 
                   2480: : d# $0a (x#) ;
                   2481: : h# $010 (x#) ;
                   2482: 
                   2483: Cond: d# $0a (x#) lit, ;Cond
                   2484: Cond: h# $010 (x#) lit, ;Cond
                   2485: 
1.104     jwilke   2486: tchar 1 = [IF]
1.110     jwilke   2487: Cond: chars ;Cond 
1.104     jwilke   2488: [THEN]
1.1       anton    2489: 
1.43      pazsan   2490: \ some special literals                                        27jan97jaw
                   2491: 
                   2492: Cond: MAXU
1.125     jwilke   2493:   -1 s>d dlit,
1.52      jwilke   2494:   ;Cond
1.43      pazsan   2495: 
1.125     jwilke   2496: tcell 2 = tcell 4 = or tcell 8 = or 0=
                   2497: [IF]
                   2498: .( Warning: MINI and MAXI may not work with this host) cr
                   2499: [THEN]
                   2500: 
1.43      pazsan   2501: Cond: MINI
1.125     jwilke   2502:   tcell 2 = IF $8000 ELSE $80000000 THEN 0
                   2503:   tcell 8 = IF swap THEN dlit,
1.52      jwilke   2504:   ;Cond
1.43      pazsan   2505:  
                   2506: Cond: MAXI
1.125     jwilke   2507:   tcell 2 = IF $7fff ELSE $7fffffff THEN 0
                   2508:   tcell 8 = IF drop -1 swap THEN dlit,
                   2509:   ;Cond
1.43      pazsan   2510: 
1.1       anton    2511: >CROSS
1.115     jwilke   2512: 
1.1       anton    2513: \ Target compiling loop                                12dec92py
                   2514: \ ">tib trick thrown out                               10may93jaw
                   2515: \ number? defined at the top                           11may93jaw
1.77      jwilke   2516: \ replaced >in by save-input                           
                   2517: 
                   2518: : discard 0 ?DO drop LOOP ;
1.1       anton    2519: 
                   2520: \ compiled word might leave items on stack!
1.77      jwilke   2521: : tcom ( x1 .. xn n name -- )
                   2522: \  dup count type space
1.103     jwilke   2523:   gfind 
                   2524:   IF    >r ( discard saved input state ) discard r>
                   2525:        dup >exec-compile @ ?dup
                   2526:         IF   nip execute-exec-compile ELSE gexecute  THEN 
1.77      jwilke   2527:        EXIT 
                   2528:   THEN
                   2529:   number? dup  
                   2530:   IF   0> IF swap lit,  THEN  lit, discard
1.103     jwilke   2531:   ELSE 2drop restore-input throw Ghost gexecute THEN  ;
1.1       anton    2532: 
                   2533: \ : ; DOES>                                            13dec92py
                   2534: \ ]                                                     9may93py/jaw
                   2535: 
1.115     jwilke   2536: >CROSS
                   2537: 
1.105     jwilke   2538: : compiling-state ( -- )
                   2539: \G set states to compililng
1.54      pazsan   2540:     Compiling comp-state !
1.103     jwilke   2541:     \ if we have a state in target, change it with the compile state
1.105     jwilke   2542:     [G'] state dup undefined? 0= 
                   2543:     IF >ghost-xt @ execute X on ELSE drop THEN ;
                   2544: 
                   2545: : interpreting-state ( -- )
                   2546: \G set states to interpreting
                   2547:    \ if target has a state variable, change it according to our state
                   2548:    [G'] state dup undefined? 0= 
                   2549:    IF >ghost-xt @ execute X off ELSE drop THEN
                   2550:    Interpreting comp-state ! ;
1.115     jwilke   2551: 
                   2552: >TARGET
1.105     jwilke   2553: 
                   2554: : ] 
                   2555:     compiling-state
1.1       anton    2556:     BEGIN
1.77      jwilke   2557:         BEGIN save-input bl word
                   2558:               dup c@ 0= WHILE drop discard refill 0=
1.1       anton    2559:               ABORT" CROSS: End of file while target compiling"
                   2560:         REPEAT
                   2561:         tcom
1.103     jwilke   2562:         compiling? 0=
1.1       anton    2563:     UNTIL ;
                   2564: 
                   2565: \ by the way: defining a second interpreter (a compiler-)loop
                   2566: \             is not allowed if a system should be ans conform
                   2567: 
1.110     jwilke   2568: : (:) ( ghost -- ) 
                   2569: \ common factor of : and :noname. Prepare ;Resolve and start definition
                   2570:    ;Resolve ! there ;Resolve cell+ !
                   2571:    docol, ]comp  colon-start depth T ] H ;
                   2572: 
1.1       anton    2573: : : ( -- colon-sys ) \ Name
1.52      jwilke   2574:   defempty?
                   2575:   constflag off \ don't let this flag work over colon defs
                   2576:                \ just to go sure nothing unwanted happens
1.43      pazsan   2577:   >in @ skip? IF  drop skip-defs  EXIT  THEN  >in !
1.110     jwilke   2578:   (THeader (:) ;
1.1       anton    2579: 
1.37      pazsan   2580: : :noname ( -- colon-sys )
1.155     pazsan   2581:   switchrom X cfalign there 
1.110     jwilke   2582:   \ define a nameless ghost
                   2583:   here ghostheader dup last-header-ghost ! dup to lastghost
                   2584:   (:) ;  
1.37      pazsan   2585: 
1.103     jwilke   2586: Cond: EXIT ( -- )   compile ;S  ;Cond
1.6       anton    2587: 
                   2588: Cond: ?EXIT ( -- ) 1 abort" CROSS: using ?exit" ;Cond
1.2       pazsan   2589: 
1.52      jwilke   2590: >CROSS
                   2591: : LastXT ;Resolve @ 0= abort" CROSS: no definition for LastXT"
                   2592:          ;Resolve cell+ @ ;
                   2593: 
                   2594: >TARGET
                   2595: 
1.103     jwilke   2596: Cond: recurse ( -- ) Last-Header-Ghost @ gexecute ;Cond
1.52      jwilke   2597: 
1.103     jwilke   2598: Cond: ; ( -- ) 
1.105     jwilke   2599:        depth ?dup 
                   2600:        IF   1- <> ABORT" CROSS: Stack changed"
                   2601:        ELSE true ABORT" CROSS: Stack empty" 
                   2602:        THEN
                   2603:        colon-end
                   2604:        fini,
                   2605:        comp[
                   2606:        ;Resolve @ 
1.118     pazsan   2607:        IF  ['] colon-resolved ;Resolve @ >comp !
                   2608:            ;Resolve @ ;Resolve cell+ @ resolve 
1.105     jwilke   2609:        THEN
                   2610:        interpreting-state
                   2611:        ;Cond
                   2612: 
                   2613: Cond: [ ( -- ) interpreting-state ;Cond
1.1       anton    2614: 
                   2615: >CROSS
1.54      pazsan   2616: 
1.117     pazsan   2617: 0 Value created
1.54      pazsan   2618: 
1.52      jwilke   2619: : !does ( does-action -- )
1.54      pazsan   2620:     tlastcfa @ [G'] :dovar killref
1.117     pazsan   2621:     >space here >r ghostheader space>
1.121     jwilke   2622:     ['] colon-resolved r@ >comp !
1.117     pazsan   2623:     r@ created >do:ghost ! r@ swap resolve
                   2624:     r> tlastcfa @ >tempdp dodoes, tempdp> ;
1.103     jwilke   2625: 
1.147     pazsan   2626: Defer instant-interpret-does>-hook  ' noop IS instant-interpret-does>-hook
1.103     jwilke   2627: 
1.134     pazsan   2628: T has? peephole H [IF]
1.118     pazsan   2629: : does-resolved ( ghost -- )
                   2630:     compile does-exec g>xt T a, H ;
1.134     pazsan   2631: [ELSE]
                   2632: : does-resolved ( ghost -- )
                   2633:     g>xt T a, H ;
                   2634: [THEN]
1.118     pazsan   2635: 
1.103     jwilke   2636: : resolve-does>-part ( -- )
                   2637: \ resolve words made by builders
1.105     jwilke   2638:   Last-Header-Ghost @ >do:ghost @ ?dup 
1.117     pazsan   2639:   IF  there resolve  THEN ;
1.103     jwilke   2640: 
1.1       anton    2641: >TARGET
1.103     jwilke   2642: Cond: DOES>
1.158     pazsan   2643:         T here H [ T has? peephole H [IF] ] 5 [ [ELSE] ] 4 [ [THEN] ] T cells
                   2644:         H + alit, compile (does>2) compile ;s
1.144     pazsan   2645:         doeshandler, resolve-does>-part
1.1       anton    2646:         ;Cond
1.103     jwilke   2647: 
1.118     pazsan   2648: : DOES>
                   2649:     ['] does-resolved created >comp !
                   2650:     switchrom doeshandler, T here H !does 
                   2651:     instant-interpret-does>-hook
                   2652:     depth T ] H ;
1.1       anton    2653: 
                   2654: >CROSS
1.108     jwilke   2655: \ Creation                                              01nov92py
1.1       anton    2656: 
                   2657: \ Builder                                               11may93jaw
                   2658: 
1.108     jwilke   2659: 0 Value built
                   2660: 
1.105     jwilke   2661: : Builder    ( Create-xt do-ghost "name" -- )
1.52      jwilke   2662: \ builds up a builder in current vocabulary
                   2663: \ create-xt is executed when word is interpreted
1.106     jwilke   2664: \ do:-xt is executed when the created word from builder is executed
1.105     jwilke   2665: \ for do:-xt an additional entry after the normal ghost-entrys is used
1.52      jwilke   2666: 
1.109     jwilke   2667:   ghost to built 
1.108     jwilke   2668:   built >created @ 0= IF
                   2669:     built >created on
                   2670:   THEN ;
1.1       anton    2671: 
1.52      jwilke   2672: : gdoes,  ( ghost -- )
                   2673: \ makes the codefield for a word that is built
1.103     jwilke   2674:   >do:ghost @ dup undefined? 0=
1.52      jwilke   2675:   IF
1.42      pazsan   2676:        dup >magic @ <do:> =
1.54      pazsan   2677:        IF       doer, 
                   2678:        ELSE    dodoes,
                   2679:        THEN
                   2680:        EXIT
1.52      jwilke   2681:   THEN
                   2682: \  compile :dodoes gexecute
                   2683: \  T here H tcell - reloff 
1.54      pazsan   2684:   2 refered 
                   2685:   0 fillcfa
                   2686:   ;
1.1       anton    2687: 
1.103     jwilke   2688: : takeover-x-semantics ( S constructor-ghost new-ghost -- )
1.117     pazsan   2689:    \g stores execution semantic and compilation semantic in the built word
                   2690:    swap >do:ghost @ 2dup swap >do:ghost !
1.110     jwilke   2691:    \ we use the >exec2 field for the semantic of a created word,
                   2692:    \ using exec or exec2 makes no difference for normal cross-compilation
                   2693:    \ but is usefull for instant where the exec field is already
                   2694:    \ defined (e.g. Vocabularies)
1.105     jwilke   2695:    2dup >exec @ swap >exec2 ! 
                   2696:    >comp @ swap >comp ! ;
1.103     jwilke   2697: 
1.118     pazsan   2698: 0 Value createhere
                   2699: 
                   2700: : create-resolve ( -- )
                   2701:     created createhere resolve 0 ;Resolve ! ;
                   2702: : create-resolve-immediate ( -- )
                   2703:     create-resolve T immediate H ;
                   2704: 
1.52      jwilke   2705: : TCreate ( <name> -- )
                   2706:   create-forward-warn
                   2707:   IF ['] reswarn-forward IS resolve-warning THEN
1.103     jwilke   2708:   executed-ghost @ (Theader
1.117     pazsan   2709:   dup >created on  dup to created
1.118     pazsan   2710:   2dup takeover-x-semantics
                   2711:   there to createhere drop gdoes, ;
1.52      jwilke   2712: 
                   2713: : RTCreate ( <name> -- )
                   2714: \ creates a new word with code-field in ram
                   2715:   create-forward-warn
                   2716:   IF ['] reswarn-forward IS resolve-warning THEN
                   2717:   \ make Alias
1.103     jwilke   2718:   executed-ghost @ (THeader 
1.118     pazsan   2719:   dup >created on  dup to created
1.103     jwilke   2720:   2dup takeover-x-semantics
1.105     jwilke   2721:   there 0 T a, H alias-mask flag!
1.103     jwilke   2722:   \ store poiter to code-field
1.52      jwilke   2723:   switchram T cfalign H
                   2724:   there swap T ! H
                   2725:   there tlastcfa ! 
1.118     pazsan   2726:   there to createhere drop gdoes, ;
1.1       anton    2727: 
                   2728: : Build:  ( -- [xt] [colon-sys] )
1.52      jwilke   2729:   :noname postpone TCreate ;
                   2730: 
                   2731: : BuildSmart:  ( -- [xt] [colon-sys] )
                   2732:   :noname
1.53      jwilke   2733:   [ T has? rom H [IF] ]
1.52      jwilke   2734:   postpone RTCreate
                   2735:   [ [ELSE] ]
                   2736:   postpone TCreate 
                   2737:   [ [THEN] ] ;
1.1       anton    2738: 
1.108     jwilke   2739: : ;Build
1.118     pazsan   2740:   postpone create-resolve postpone ; built >exec ! ; immediate
                   2741: 
                   2742: : ;Build-immediate
                   2743:     postpone create-resolve-immediate
                   2744:     postpone ; built >exec ! ; immediate
1.108     jwilke   2745: 
1.1       anton    2746: : gdoes>  ( ghost -- addr flag )
1.110     jwilke   2747:   executed-ghost @ g>body ;
1.1       anton    2748: 
                   2749: \ DO: ;DO                                               11may93jaw
                   2750: 
1.108     jwilke   2751: : do:ghost! ( ghost -- ) built >do:ghost ! ;
                   2752: : doexec! ( xt -- ) built >do:ghost @ >exec ! ;
                   2753: 
                   2754: : DO:     ( -- [xt] [colon-sys] )
                   2755:   here ghostheader do:ghost!
1.110     jwilke   2756:   :noname postpone gdoes> ;
1.1       anton    2757: 
1.108     jwilke   2758: : by:     ( -- [xt] [colon-sys] ) \ name
                   2759:   Ghost do:ghost!
1.110     jwilke   2760:   :noname postpone gdoes> ;
1.42      pazsan   2761: 
1.108     jwilke   2762: : ;DO ( [xt] [colon-sys] -- )
                   2763:   postpone ; doexec! ; immediate
1.1       anton    2764: 
1.109     jwilke   2765: : by      ( -- ) \ Name
1.108     jwilke   2766:   Ghost >do:ghost @ do:ghost! ;
1.107     jwilke   2767: 
1.109     jwilke   2768: : compile: ( --[xt] [colon-sys] )
1.107     jwilke   2769: \G defines a compile time action for created words
                   2770: \G by this builder
                   2771:   :noname ;
                   2772: 
1.109     jwilke   2773: : ;compile ( [xt] [colon-sys] -- )
                   2774:   postpone ; built >do:ghost @ >comp ! ; immediate
1.107     jwilke   2775: 
1.1       anton    2776: \ Variables and Constants                              05dec92py
                   2777: 
1.108     jwilke   2778: Builder (Constant)
                   2779: Build:  ( n -- ) ;Build
1.103     jwilke   2780: by: :docon ( target-body-addr -- n ) T @ H ;DO
1.52      jwilke   2781: 
1.108     jwilke   2782: Builder Constant
                   2783: Build:  ( n -- ) T , H ;Build
1.52      jwilke   2784: by (Constant)
                   2785: 
1.108     jwilke   2786: Builder AConstant
                   2787: Build:  ( n -- ) T A, H ;Build
1.52      jwilke   2788: by (Constant)
                   2789: 
1.108     jwilke   2790: Builder 2Constant
                   2791: Build:  ( d -- ) T , , H ;Build
1.52      jwilke   2792: DO: ( ghost -- d ) T dup cell+ @ swap @ H ;DO
                   2793: 
1.108     jwilke   2794: Builder Create
                   2795: BuildSmart: ;Build
1.103     jwilke   2796: by: :dovar ( target-body-addr -- addr ) ;DO
1.1       anton    2797: 
1.108     jwilke   2798: Builder Variable
1.53      jwilke   2799: T has? rom H [IF]
1.108     jwilke   2800: Build: ( -- ) T here 0 A, H switchram T align here swap ! 0 , H ( switchrom ) ;Build
1.52      jwilke   2801: by (Constant)
                   2802: [ELSE]
1.108     jwilke   2803: Build: T 0 , H ;Build
1.1       anton    2804: by Create
1.52      jwilke   2805: [THEN]
1.1       anton    2806: 
1.108     jwilke   2807: Builder 2Variable
1.53      jwilke   2808: T has? rom H [IF]
1.108     jwilke   2809: Build: ( -- ) T here 0 A, H switchram T align here swap ! 0 , 0 , H ( switchrom ) ;Build
1.54      pazsan   2810: by (Constant)
                   2811: [ELSE]
1.108     jwilke   2812: Build: T 0 , 0 , H ;Build
1.54      pazsan   2813: by Create
                   2814: [THEN]
                   2815: 
1.108     jwilke   2816: Builder AVariable
1.54      pazsan   2817: T has? rom H [IF]
1.108     jwilke   2818: Build: ( -- ) T here 0 A, H switchram T align here swap ! 0 A, H ( switchrom ) ;Build
1.52      jwilke   2819: by (Constant)
                   2820: [ELSE]
1.108     jwilke   2821: Build: T 0 A, H ;Build
1.1       anton    2822: by Create
1.52      jwilke   2823: [THEN]
1.1       anton    2824: 
1.3       pazsan   2825: \ User variables                                       04may94py
                   2826: 
1.139     jwilke   2827: : tup@ user-region >rstart @ ;
                   2828: 
                   2829: \ Variable tup  0 tup !
                   2830: \ Variable tudp 0 tudp !
1.78      jwilke   2831: 
1.3       pazsan   2832: : u,  ( n -- udp )
1.153     pazsan   2833:   current-region >r user-region activate
                   2834:   X here swap X , tup@ -
1.139     jwilke   2835:   r> activate ;
1.78      jwilke   2836: 
1.3       pazsan   2837: : au, ( n -- udp )
1.139     jwilke   2838:   current-region >r user-region activate
                   2839:   X here swap X a, tup@ - 
                   2840:   r> activate ;
                   2841: 
                   2842: T has? no-userspace H [IF]
                   2843: 
                   2844: : buildby
                   2845:   ghost >exec @ built >exec ! ;
                   2846: 
                   2847: Builder User
                   2848: buildby Variable
                   2849: by Variable
                   2850: 
                   2851: Builder 2User
                   2852: buildby 2Variable
                   2853: by 2Variable
                   2854: 
                   2855: Builder AUser
                   2856: buildby AVariable
                   2857: by AVariable
                   2858: 
                   2859: [ELSE]
1.78      jwilke   2860: 
1.108     jwilke   2861: Builder User
                   2862: Build: 0 u, X , ;Build
1.139     jwilke   2863: by: :douser ( ghost -- up-addr )  X @ tup@ + ;DO
1.1       anton    2864: 
1.108     jwilke   2865: Builder 2User
                   2866: Build: 0 u, X , 0 u, drop ;Build
1.3       pazsan   2867: by User
1.1       anton    2868: 
1.108     jwilke   2869: Builder AUser
                   2870: Build: 0 au, X , ;Build
1.3       pazsan   2871: by User
1.1       anton    2872: 
1.139     jwilke   2873: [THEN]
                   2874: 
1.155     pazsan   2875: T has? rom H [IF]
                   2876: Builder (Value)
                   2877: Build:  ( n -- ) ;Build
                   2878: by: :dovalue ( target-body-addr -- n ) T @ @ H ;DO
                   2879: 
                   2880: Builder Value
                   2881: Build: T here 0 A, H switchram T align here swap ! , H ;Build
                   2882: by (Value)
                   2883: 
                   2884: Builder AValue
                   2885: Build: T here 0 A, H switchram T align here swap ! A, H ;Build
                   2886: by (Value)
                   2887: [ELSE]
1.108     jwilke   2888: Builder (Value)
                   2889: Build:  ( n -- ) ;Build
1.156     pazsan   2890: by: :dovalue ( target-body-addr -- n ) T @ H ;DO
1.108     jwilke   2891: 
1.1       anton    2892: Builder Value
1.108     jwilke   2893: BuildSmart: T , H ;Build
                   2894: by (Value)
1.1       anton    2895: 
1.32      pazsan   2896: Builder AValue
1.108     jwilke   2897: BuildSmart: T A, H ;Build
                   2898: by (Value)
1.155     pazsan   2899: [THEN]
1.32      pazsan   2900: 
1.103     jwilke   2901: Defer texecute
                   2902: 
1.108     jwilke   2903: Builder Defer
1.155     pazsan   2904: T has? rom H [IF]
                   2905:     Build: ( -- )  T here 0 A, H switchram T align here swap ! H [T'] noop T A, H ( switchrom ) ;Build
                   2906:     by: :dodefer ( ghost -- ) X @ X @ texecute ;DO
                   2907: [ELSE]
                   2908:     BuildSmart:  ( -- ) [T'] noop T A, H ;Build
                   2909:     by: :dodefer ( ghost -- ) X @ texecute ;DO
                   2910: [THEN]
1.37      pazsan   2911: 
1.108     jwilke   2912: Builder interpret/compile:
1.118     pazsan   2913: Build: ( inter comp -- ) swap T A, A, H ;Build-immediate
1.37      pazsan   2914: DO: ( ghost -- ) ABORT" CROSS: Don't execute" ;DO
1.24      pazsan   2915: 
                   2916: \ Sturctures                                           23feb95py
                   2917: 
                   2918: : nalign ( addr1 n -- addr2 )
                   2919: \ addr2 is the aligned version of addr1 wrt the alignment size n
                   2920:  1- tuck +  swap invert and ;
1.109     jwilke   2921: 
1.24      pazsan   2922: 
1.108     jwilke   2923: Builder (Field)
                   2924: Build: ;Build
1.44      pazsan   2925: by: :dofield T @ H + ;DO
                   2926: 
1.108     jwilke   2927: Builder Field
1.51      anton    2928: Build: ( align1 offset1 align size "name" --  align2 offset2 )
                   2929:     rot dup T , H ( align1 align size offset1 )
1.108     jwilke   2930:     + >r nalign r> ;Build
1.44      pazsan   2931: by (Field)
1.24      pazsan   2932: 
1.109     jwilke   2933: >TARGET
1.51      anton    2934: : struct  T 1 chars 0 H ;
1.24      pazsan   2935: : end-struct  T 2Constant H ;
                   2936: 
1.52      jwilke   2937: : cell% ( n -- size align )
1.51      anton    2938:     T 1 cells H dup ;
1.109     jwilke   2939: >CROSS
1.88      pazsan   2940: 
1.105     jwilke   2941: \ Input-Methods                                            01py
1.103     jwilke   2942: 
1.108     jwilke   2943: Builder input-method
                   2944: Build: ( m v -- m' v )  dup T , cell+ H ;Build
1.88      pazsan   2945: DO:  abort" Not in cross mode" ;DO
                   2946: 
1.108     jwilke   2947: Builder input-var
                   2948: Build: ( m v size -- m v' )  over T , H + ;Build
1.88      pazsan   2949: DO:  abort" Not in cross mode" ;DO
1.24      pazsan   2950: 
1.108     jwilke   2951: \ Peephole optimization                                        05sep01jaw
                   2952: 
                   2953: \ this section defines different compilation
                   2954: \ actions for created words
                   2955: \ this will help the peephole optimizer
1.121     jwilke   2956: \ I (jaw) took this from bernds latest cross-compiler
1.108     jwilke   2957: \ changes but seperated it from the original
                   2958: \ Builder words. The final plan is to put this
                   2959: \ into a seperate file, together with the peephole
                   2960: \ optimizer for cross
                   2961: 
                   2962: 
                   2963: T has? peephole H [IF]
                   2964: 
1.139     jwilke   2965: \ .( loading peephole optimization) cr
                   2966: 
1.109     jwilke   2967: >CROSS
1.118     pazsan   2968: 
1.109     jwilke   2969: : (callc) compile call T >body a, H ;          ' (callc) plugin-of colon,
1.121     jwilke   2970: : (callcm) T here 0 a, 0 a, H ;                 ' (callcm) plugin-of colonmark,
1.118     pazsan   2971: : (call-res) >tempdp resolved gexecute tempdp> drop ;
                   2972:                                                 ' (call-res) plugin-of colon-resolve
1.121     jwilke   2973: : (pprim) dup 0< IF  $4000 -  ELSE
                   2974:     cr ." wrong usage of (prim) "
                   2975:     dup gdiscover IF  .ghost  ELSE  .  THEN  cr -1 throw  THEN
                   2976:     T a, H ;                                   ' (pprim) plugin-of prim,
1.109     jwilke   2977: 
                   2978: \ if we want this, we have to spilt aconstant
                   2979: \ and constant!!
                   2980: \ Builder (Constant)
                   2981: \ compile: g>body X @ lit, ;compile
1.108     jwilke   2982: 
                   2983: Builder (Constant)
1.118     pazsan   2984: compile: g>body compile lit@ T a, H ;compile
1.108     jwilke   2985: 
                   2986: Builder (Value)
1.118     pazsan   2987: compile: g>body compile lit@ T a, H ;compile
1.108     jwilke   2988: 
                   2989: \ this changes also Variable, AVariable and 2Variable
                   2990: Builder Create
1.117     pazsan   2991: compile: g>body alit, ;compile
1.108     jwilke   2992: 
                   2993: Builder User
                   2994: compile: g>body compile useraddr T @ , H ;compile
                   2995: 
                   2996: Builder Defer
1.118     pazsan   2997: compile: g>body compile lit-perform T A, H ;compile
1.102     jwilke   2998: 
1.108     jwilke   2999: Builder (Field)
1.118     pazsan   3000: compile: g>body T @ H compile lit+ T , H ;compile
1.117     pazsan   3001: 
                   3002: Builder interpret/compile:
                   3003: compile: does-resolved ;compile
                   3004: 
                   3005: Builder input-method
                   3006: compile: does-resolved ;compile
                   3007: 
                   3008: Builder input-var
                   3009: compile: does-resolved ;compile
1.102     jwilke   3010: 
1.108     jwilke   3011: [THEN]
1.103     jwilke   3012: 
1.52      jwilke   3013: \ structural conditionals                              17dec92py
                   3014: 
                   3015: >CROSS
1.103     jwilke   3016: : (ncontrols?) ( n -- ) 
                   3017: \g We expect n open control structures
                   3018:   depth over u<= 
                   3019:   ABORT" CROSS: unstructured, stack underflow"
                   3020:   0 ?DO I pick 0= 
                   3021:         ABORT" CROSS: unstructured" 
                   3022:   LOOP ;                                       ' (ncontrols?) plugin-of ncontrols?
                   3023: 
                   3024: \ : ?struc      ( flag -- )       ABORT" CROSS: unstructured " ;
                   3025: \ : sys?        ( sys -- sys )    dup 0= ?struc ;
                   3026: 
1.52      jwilke   3027: : >mark       ( -- sys )        T here  ( dup ." M" hex. ) 0 , H ;
                   3028: 
1.133     pazsan   3029: X has? abranch [IF]
                   3030:     : branchoffset ( src dest -- )  drop ;
                   3031:     : offset, ( n -- )  X A, ;
                   3032: [ELSE]
                   3033:     : branchoffset ( src dest -- )  - tchar / ; \ ?? jaw
                   3034:     : offset, ( n -- )  X , ;
                   3035: [THEN]
1.52      jwilke   3036: 
1.133     pazsan   3037: :noname compile branch X here branchoffset offset, ;
1.54      pazsan   3038:   IS branch, ( target-addr -- )
1.133     pazsan   3039: :noname compile ?branch X here branchoffset offset, ;
1.54      pazsan   3040:   IS ?branch, ( target-addr -- )
1.133     pazsan   3041: :noname compile branch T here 0 H offset, ;
1.54      pazsan   3042:   IS branchmark, ( -- branchtoken )
1.133     pazsan   3043: :noname compile ?branch T here 0 H offset, ;
1.54      pazsan   3044:   IS ?branchmark, ( -- branchtoken )
1.133     pazsan   3045: :noname T here 0 H offset, ;
1.54      pazsan   3046:   IS ?domark, ( -- branchtoken )
1.78      jwilke   3047: :noname dup X @ ?struc X here over branchoffset swap X ! ;
1.54      pazsan   3048:   IS branchtoresolve, ( branchtoken -- )
1.78      jwilke   3049: :noname branchto, X here ;
1.54      pazsan   3050:   IS branchtomark, ( -- target-addr )
1.52      jwilke   3051: 
                   3052: >TARGET
                   3053: 
                   3054: \ Structural Conditionals                              12dec92py
                   3055: 
1.103     jwilke   3056: \ CLEANUP Cond: BUT       sys? swap ;Cond
                   3057: \ CLEANUP Cond: YET       sys? dup ;Cond
1.52      jwilke   3058: 
                   3059: >CROSS
                   3060: 
1.78      jwilke   3061: Variable tleavings 0 tleavings !
1.52      jwilke   3062: 
1.129     jwilke   3063: : (done) ( do-addr -- )
                   3064: \G resolve branches of leave and ?leave and ?do
                   3065: \G do-addr is the address of the beginning of our
                   3066: \G loop so we can take care of nested loops
1.54      pazsan   3067:     tleavings @
                   3068:     BEGIN  dup
                   3069:     WHILE
                   3070:        >r dup r@ cell+ @ \ address of branch
                   3071:        u> 0=      \ lower than DO?     
                   3072:     WHILE
                   3073:        r@ 2 cells + @ \ branch token
                   3074:        branchtoresolve,
                   3075:        r@ @ r> free throw
                   3076:     REPEAT  r>  THEN
                   3077:     tleavings ! drop ;
                   3078: 
1.53      jwilke   3079: >TARGET
                   3080: 
1.103     jwilke   3081: \ What for? ANS? JAW Cond: DONE   ( addr -- )  (done) ;Cond
1.53      jwilke   3082: 
                   3083: >CROSS
1.54      pazsan   3084: : (leave) ( branchtoken -- )
1.53      jwilke   3085:     3 cells allocate throw >r
                   3086:     T here H r@ cell+ !
                   3087:     r@ 2 cells + !
                   3088:     tleavings @ r@ !
                   3089:     r> tleavings ! ;
                   3090: >TARGET
                   3091: 
1.103     jwilke   3092: : (leave,) ( -- ) 
                   3093:   branchmark, (leave) ;                        ' (leave,) plugin-of leave,
                   3094: 
                   3095: : (?leave,) ( -- )
                   3096:   compile 0= ?branchmark, (leave) ;            ' (?leave,) plugin-of ?leave,
                   3097: 
                   3098: Cond: LEAVE     leave, ;Cond
                   3099: Cond: ?LEAVE    ?leave, ;Cond
1.53      jwilke   3100: 
1.54      pazsan   3101: >CROSS
                   3102: \ !!JW ToDo : Move to general tools section
                   3103: 
                   3104: : to1 ( x1 x2 xn n -- addr )
1.103     jwilke   3105: \G packs n stack elements in am allocated memory region
1.54      pazsan   3106:    dup dup 1+ cells allocate throw dup >r swap 1+
                   3107:    0 DO tuck ! cell+ LOOP
                   3108:    drop r> ;
1.103     jwilke   3109: 
1.54      pazsan   3110: : 1to ( addr -- x1 x2 xn )
                   3111: \G unpacks the elements saved by to1
                   3112:     dup @ swap over cells + swap
                   3113:     0 DO  dup @ swap 1 cells -  LOOP
                   3114:     free throw ;
                   3115: 
1.129     jwilke   3116: : loop] ( target-addr -- )
                   3117:   branchto, 
1.133     pazsan   3118:   dup  X here branchoffset offset, 
1.129     jwilke   3119:   tcell - (done) ;
1.54      pazsan   3120: 
                   3121: : skiploop] ?dup IF branchto, branchtoresolve, THEN ;
                   3122: 
                   3123: >TARGET
                   3124: 
1.52      jwilke   3125: \ Structural Conditionals                              12dec92py
                   3126: 
1.103     jwilke   3127: : (cs-swap) ( x1 x2 -- x2 x1 )
                   3128:   swap ;                                       ' (cs-swap) plugin-of cs-swap
                   3129: 
                   3130: : (ahead,) branchmark, ;                       ' (ahead,) plugin-of ahead,
                   3131: 
                   3132: : (if,) ?branchmark, ;                                 ' (if,) plugin-of if,
                   3133: 
                   3134: : (then,) branchto, branchtoresolve, ;                 ' (then,) plugin-of then,
                   3135: 
                   3136: : (else,) ( ahead ) branchmark, 
                   3137:           swap 
                   3138:           ( then ) branchto, branchtoresolve, ;        ' (else,) plugin-of else,
                   3139: 
                   3140: : (begin,) branchtomark, ;                     ' (begin,) plugin-of begin,
                   3141: 
                   3142: : (while,) ( if ) ?branchmark,
                   3143:            swap ;                              ' (while,) plugin-of while,
                   3144: 
                   3145: : (again,) branch, ;                           ' (again,) plugin-of again,
                   3146: 
                   3147: : (until,) ?branch, ;                          ' (until,) plugin-of until,
                   3148: 
                   3149: : (repeat,) ( again ) branch,
                   3150:             ( then ) branchto, branchtoresolve, ; ' (repeat,) plugin-of repeat,
                   3151: 
                   3152: : (case,)   ( -- n )
                   3153:   0 ;                                          ' (case,) plugin-of case,
                   3154: 
                   3155: : (of,) ( n -- x1 n )
                   3156:   1+ >r 
                   3157:   compile over compile = 
                   3158:   if, compile drop r> ;                                ' (of,) plugin-of of,
                   3159: 
                   3160: : (endof,) ( x1 n -- x2 n )
                   3161:   >r 1 ncontrols? else, r> ;                   ' (endof,) plugin-of endof,
                   3162: 
                   3163: : (endcase,) ( x1 .. xn n -- )
                   3164:   compile drop 0 ?DO 1 ncontrols? then, LOOP ; ' (endcase,) plugin-of endcase,
                   3165: 
1.53      jwilke   3166: >TARGET
1.103     jwilke   3167: Cond: AHEAD     ahead, ;Cond
                   3168: Cond: IF        if,  ;Cond
                   3169: Cond: THEN      1 ncontrols? then, ;Cond
                   3170: Cond: ENDIF     1 ncontrols? then, ;Cond
                   3171: Cond: ELSE      1 ncontrols? else, ;Cond
                   3172: 
                   3173: Cond: BEGIN     begin, ;Cond
                   3174: Cond: WHILE     1 ncontrols? while, ;Cond
                   3175: Cond: AGAIN     1 ncontrols? again, ;Cond
                   3176: Cond: UNTIL     1 ncontrols? until, ;Cond
                   3177: Cond: REPEAT    2 ncontrols? repeat, ;Cond
                   3178: 
                   3179: Cond: CASE      case, ;Cond
                   3180: Cond: OF        of, ;Cond
                   3181: Cond: ENDOF     endof, ;Cond
                   3182: Cond: ENDCASE   endcase, ;Cond
1.1       anton    3183: 
                   3184: \ Structural Conditionals                              12dec92py
                   3185: 
1.103     jwilke   3186: : (do,) ( -- target-addr )
                   3187:   \ ?? i think 0 is too much! jaw
1.54      pazsan   3188:     0 compile (do)
1.103     jwilke   3189:     branchtomark,  2 to1 ;                     ' (do,) plugin-of do,
1.54      pazsan   3190: 
1.103     jwilke   3191: \ alternative for if no ?do
                   3192: \ : (do,)
1.54      pazsan   3193: \     compile 2dup compile = compile IF
                   3194: \     compile 2drop compile ELSE
                   3195: \     compile (do) branchtomark, 2 to1 ;
                   3196:     
1.103     jwilke   3197: : (?do,) ( -- target-addr )
1.54      pazsan   3198:     0 compile (?do)  ?domark, (leave)
1.103     jwilke   3199:     branchtomark,  2 to1 ;                     ' (?do,) plugin-of ?do,
                   3200: 
                   3201: : (for,) ( -- target-addr )
                   3202:   compile (for) branchtomark, ;                        ' (for,) plugin-of for,
                   3203: 
                   3204: : (loop,) ( target-addr -- )
                   3205:   1to compile (loop)  loop] 
                   3206:   compile unloop skiploop] ;                   ' (loop,) plugin-of loop,
                   3207: 
                   3208: : (+loop,) ( target-addr -- )
                   3209:   1to compile (+loop)  loop] 
                   3210:   compile unloop skiploop] ;                   ' (+loop,) plugin-of +loop,
                   3211: 
                   3212: : (next,) 
                   3213:   compile (next)  loop] compile unloop ;       ' (next,) plugin-of next,
                   3214: 
                   3215: Cond: DO       do, ;Cond
                   3216: Cond: ?DO      ?do, ;Cond
                   3217: Cond: FOR      for, ;Cond
                   3218: 
                   3219: Cond: LOOP     1 ncontrols? loop, ;Cond
                   3220: Cond: +LOOP    1 ncontrols? +loop, ;Cond
                   3221: Cond: NEXT     1 ncontrols? next, ;Cond
1.52      jwilke   3222: 
1.1       anton    3223: \ String words                                         23feb93py
                   3224: 
1.103     jwilke   3225: : ,"            [char] " parse ht-string, X align ;
1.1       anton    3226: 
1.130     pazsan   3227: X has? control-rack [IF]
1.103     jwilke   3228: Cond: ."        compile (.")     T ," H ;Cond
                   3229: Cond: S"        compile (S")     T ," H ;Cond
                   3230: Cond: C"        compile (C")     T ," H ;Cond
                   3231: Cond: ABORT"    compile (ABORT") T ," H ;Cond
1.130     pazsan   3232: [ELSE]
                   3233: Cond: ."        '" parse tuck 2>r ahead, there 2r> ht-mem, X align
                   3234:                 >r then, r> compile ALiteral compile Literal compile type ;Cond
                   3235: Cond: S"        '" parse tuck 2>r ahead, there 2r> ht-mem, X align
                   3236:                 >r then, r> compile ALiteral compile Literal ;Cond
                   3237: Cond: C"        ahead, there [char] " parse ht-string, X align
                   3238:                 >r then, r> compile ALiteral ;Cond
                   3239: Cond: ABORT"    if, ahead, there [char] " parse ht-string, X align
                   3240:                 >r then, r> compile ALiteral compile c(abort") then, ;Cond
                   3241: [THEN]
1.1       anton    3242: 
1.155     pazsan   3243: X has? rom [IF]
                   3244: Cond: IS        T ' >body @ H compile ALiteral compile ! ;Cond
                   3245: : IS            T >address ' >body @ ! H ;
                   3246: Cond: TO        T ' >body @ H compile ALiteral compile ! ;Cond
                   3247: : TO            T ' >body @ ! H ;
1.160     pazsan   3248: Cond: CTO       T ' >body H compile ALiteral compile ! ;Cond
                   3249: : CTO           T ' >body ! H ;
1.155     pazsan   3250: [ELSE]
1.1       anton    3251: Cond: IS        T ' >body H compile ALiteral compile ! ;Cond
1.66      pazsan   3252: : IS            T >address ' >body ! H ;
1.9       pazsan   3253: Cond: TO        T ' >body H compile ALiteral compile ! ;Cond
                   3254: : TO            T ' >body ! H ;
1.155     pazsan   3255: [THEN]
1.1       anton    3256: 
1.52      jwilke   3257: Cond: defers   T ' >body @ compile, H ;Cond
                   3258: 
1.1       anton    3259: \ LINKED ERR" ENV" 2ENV"                                18may93jaw
                   3260: 
                   3261: \ linked list primitive
1.79      jwilke   3262: : linked        X here over X @ X A, swap X ! ;
1.52      jwilke   3263: : chained      T linked A, H ;
1.1       anton    3264: 
                   3265: : err"   s" ErrLink linked" evaluate T , H
1.103     jwilke   3266:          [char] " parse ht-string, X align ;
1.1       anton    3267: 
                   3268: : env"  [char] " parse s" EnvLink linked" evaluate
1.103     jwilke   3269:         ht-string, X align X , ;
1.1       anton    3270: 
                   3271: : 2env" [char] " parse s" EnvLink linked" evaluate
1.103     jwilke   3272:         here >r ht-string, X align X , X ,
1.1       anton    3273:         r> dup T c@ H 80 and swap T c! H ;
                   3274: 
                   3275: \ compile must be last                                 22feb93py
                   3276: 
1.103     jwilke   3277: Cond: [compile] ( -- ) \ name
                   3278: \g For immediate words, works even if forward reference
                   3279:       bl word gfind 0= ABORT" CROSS: Can't compile"
                   3280:       (gexecute) ;Cond
                   3281:           
                   3282: Cond: postpone ( -- ) \ name
                   3283:       bl word gfind 0= ABORT" CROSS: Can't compile"
                   3284:       dup >magic @ <fwd> =
                   3285:       ABORT" CROSS: Can't postpone on forward declaration"
                   3286:       dup >magic @ <imm> =
                   3287:       IF   (gexecute)
1.143     pazsan   3288:       ELSE >link @ alit, compile compile,  THEN ;Cond
1.54      pazsan   3289:           
1.77      jwilke   3290: \ save-cross                                           17mar93py
                   3291: 
                   3292: hex
                   3293: 
                   3294: >CROSS
1.131     anton    3295: Create magic  s" Gforth3x" here over allot swap move
1.77      jwilke   3296: 
                   3297: bigendian 1+ \ strangely, in magic big=0, little=1
                   3298: tcell 1 = 0 and or
                   3299: tcell 2 = 2 and or
                   3300: tcell 4 = 4 and or
                   3301: tcell 8 = 6 and or
                   3302: tchar 1 = 00 and or
                   3303: tchar 2 = 28 and or
                   3304: tchar 4 = 50 and or
                   3305: tchar 8 = 78 and or
                   3306: magic 7 + c!
                   3307: 
                   3308: : save-cross ( "image-name" "binary-name" -- )
1.152     pazsan   3309:   .regions \  s" ec" X $has? IF  .regions  THEN
1.77      jwilke   3310:   bl parse ." Saving to " 2dup type cr
                   3311:   w/o bin create-file throw >r
1.113     jwilke   3312:   s" header" X $has? IF
1.80      anton    3313:       s" #! "           r@ write-file throw
                   3314:       bl parse          r@ write-file throw
                   3315:       s"  --image-file" r@ write-file throw
1.77      jwilke   3316:       #lf       r@ emit-file throw
                   3317:       r@ dup file-position throw drop 8 mod 8 swap ( file-id limit index )
                   3318:       ?do
                   3319:          bl over emit-file throw
                   3320:       loop
                   3321:       drop
                   3322:       magic 8       r@ write-file throw \ write magic
                   3323:   ELSE
                   3324:       bl parse 2drop
                   3325:   THEN
1.151     pazsan   3326:   >rom dictionary >rmem @ there
                   3327:   s" rom" X $has? IF  dictionary >rstart @ -  THEN
1.77      jwilke   3328:   r@ write-file throw \ write image
1.113     jwilke   3329:   s" relocate" X $has? IF
1.139     jwilke   3330:       dictionary >rbm @ there 1- tcell>bit rshift 1+
1.77      jwilke   3331:                 r@ write-file throw \ write tags
                   3332:   THEN
                   3333:   r> close-file throw ;
                   3334: 
                   3335: : save-region ( addr len -- )
                   3336:   bl parse w/o bin create-file throw >r
                   3337:   swap >image swap r@ write-file throw
                   3338:   r> close-file throw ;
                   3339: 
1.110     jwilke   3340: \ save-asm-region                                      29aug01jaw
1.103     jwilke   3341: 
                   3342: Variable name-ptr
                   3343: Create name-buf 200 chars allot
                   3344: : init-name-buf name-buf name-ptr ! ;
                   3345: : nb, name-ptr @ c! 1 chars name-ptr +! ;
                   3346: : $nb, ( adr len -- ) bounds ?DO I c@ nb, LOOP ;
                   3347: : @nb name-ptr @ name-buf tuck - ;
                   3348: 
                   3349: \ stores a usefull string representation of the character
                   3350: \ in the name buffer
                   3351: : name-char, ( c -- )
                   3352:   dup 'a 'z 1+ within IF nb, EXIT THEN
                   3353:   dup 'A 'Z 1+ within IF $20 + nb, EXIT THEN
                   3354:   dup '0 '9 1+ within IF nb, EXIT THEN
                   3355:   CASE '+ OF s" _PLUS" $nb, ENDOF
                   3356:        '- OF s" _MINUS" $nb, ENDOF
                   3357:        '* OF s" _STAR" $nb, ENDOF
                   3358:        '/ OF s" _SLASH" $nb, ENDOF
                   3359:        '' OF s" _TICK" $nb, ENDOF
                   3360:        '( OF s" _OPAREN" $nb, ENDOF
                   3361:        ') OF s" _CPAREN" $nb, ENDOF
                   3362:        '[ OF s" _OBRACKET" $nb, ENDOF
                   3363:        '] OF s" _CBRACKET" $nb, ENDOF
                   3364:        '! OF s" _STORE" $nb, ENDOF
                   3365:        '@ OF s" _FETCH" $nb, ENDOF
                   3366:        '> OF s" _GREATER" $nb, ENDOF
                   3367:        '< OF s" _LESS" $nb, ENDOF
                   3368:        '= OF s" _EQUAL" $nb, ENDOF
                   3369:        '# OF s" _HASH" $nb, ENDOF
                   3370:        '? OF s" _QUEST" $nb, ENDOF
                   3371:        ': OF s" _COL" $nb, ENDOF
                   3372:        '; OF s" _SEMICOL" $nb, ENDOF
                   3373:        ', OF s" _COMMA" $nb, ENDOF
                   3374:        '. OF s" _DOT" $nb, ENDOF
                   3375:        '" OF s" _DQUOT" $nb, ENDOF
                   3376:        dup 
                   3377:        base @ >r hex s>d <# #s 'X hold '_ hold #> $nb, r> base !
                   3378:   ENDCASE ;
                   3379:  
                   3380: : label-from-ghostname ( ghost -- addr len )
                   3381:   dup >ghostname init-name-buf 'L nb, bounds 
                   3382:   ?DO I c@ name-char, LOOP 
                   3383:   \ we add the address to a name to make in unique
                   3384:   \ because one name may appear more then once
                   3385:   \ there are names (e.g. boot) that may be reference from other
                   3386:   \ assembler source files, so we declare them as unique
                   3387:   \ and don't add the address suffix
                   3388:   dup >ghost-flags @ <unique> and 0= 
                   3389:   IF   s" __" $nb, >link @ base @ >r hex 0 <# #s 'L hold #> r> base ! $nb, 
                   3390:   ELSE drop 
                   3391:   THEN
                   3392:   @nb ;
                   3393: 
1.111     jwilke   3394: \ FIXME why disabled?!
1.103     jwilke   3395: : label-from-ghostnameXX ( ghost -- addr len )
                   3396: \ same as (label-from-ghostname) but caches generated names
                   3397:   dup >asm-name @ ?dup IF nip count EXIT THEN
                   3398:  \ dup >r (label-from-ghostname) 2dup
                   3399:   align here >r string, align
                   3400:   r> r> >asm-name ! ;
                   3401: 
                   3402: : primghostdiscover ( xt -- ghost true | xt false )
                   3403:   dup 0= IF false EXIT THEN
                   3404:   >r last-prim-ghost
                   3405:   BEGIN @ dup
                   3406:   WHILE dup >asm-dummyaddr @ r@ =
                   3407:         IF rdrop true EXIT THEN
                   3408:   REPEAT
                   3409:   drop r> false ;
                   3410: 
                   3411: : gdiscover2 ( xt -- ghost true | xt false ) 
                   3412:   dup taddr>region 0= IF false EXIT THEN
                   3413:   dup (>regiontype) @ dup 0= IF drop false EXIT THEN
                   3414:   addr-xt-ghost @ dup 0= IF drop false EXIT THEN
                   3415:   nip true ;
                   3416: \  dup >ghost-name @ IF nip true ELSE drop false THEN ;
                   3417: 
                   3418: \ generates a label name for the target address
                   3419: : generate-label-name ( taddr -- addr len )
                   3420:   gdiscover2
                   3421:   IF dup >magic @ <do:> =
                   3422:      IF >asm-name @ count EXIT THEN
                   3423:      label-from-ghostname
                   3424:   ELSE
                   3425:      primghostdiscover
                   3426:      IF   >asm-name @ count 
                   3427:      ELSE base @ >r hex 0 <# #s 'L hold #> r> base !
                   3428:      THEN
                   3429:   THEN ;
                   3430: 
                   3431: Variable outfile-fd
                   3432: 
                   3433: : $out ( adr len -- ) outfile-fd @ write-file throw  ;
                   3434: : nlout newline $out ;
                   3435: : .ux ( n -- ) 
                   3436:   base @ hex swap 0 <# #S #> $out base ! ;
                   3437: 
                   3438: : save-asm-region-part-aligned ( taddr len -- 'taddr 'len )
                   3439:   dup cell/ 0 
                   3440:   ?DO nlout s"    .word " $out over @relbit 
                   3441:       IF   over X @ generate-label-name $out
                   3442:       ELSE over X @ s" 0x0" $out .ux
                   3443:       THEN
                   3444:       tcell /string
                   3445:   LOOP ;
                   3446: 
                   3447: : print-bytes ( taddr len n -- taddr' len' )
                   3448:   over min dup 0> 
                   3449:   IF   nlout s"    .byte " $out 0 
                   3450:        ?DO  I 0> IF s" , " $out THEN
                   3451:             over X c@ s" 0x0" $out .ux 1 /string 
                   3452:        LOOP 
                   3453:   THEN ;
                   3454: 
                   3455: : save-asm-region-part ( addr len -- )
                   3456:   over dup X aligned swap - ?dup
                   3457:   IF   print-bytes THEN
                   3458:   save-asm-region-part-aligned
                   3459:   dup dup X aligned swap - ?dup
                   3460:   IF   2 pick @relbit ABORT" relocated field splitted"
                   3461:        print-bytes
                   3462:   THEN
                   3463:   2drop ;
                   3464: 
                   3465: : print-label ( taddr -- )
                   3466:   nlout generate-label-name $out s" :" $out ;
                   3467: 
                   3468: : snl-calc ( taddr taddr2 -- )
                   3469:   tuck over - ;
                   3470: 
                   3471: : skip-nolables ( taddr -- taddr2 taddr len )
                   3472: \G skips memory region where no lables are defined
                   3473: \G starting from taddr+1
                   3474: \G Labels will be introduced for each reference mark
                   3475: \G in addr-refs.
                   3476: \G This word deals with lables at byte addresses as well.
                   3477: \G The main idea is to have an intro part which
                   3478: \G skips until the next cell boundary, the middle part
                   3479: \G which skips whole cells very efficiently and the third
                   3480: \G part which skips the bytes to the label in a cell
                   3481:   dup 1+ dup (>regiontype) 
                   3482:   ( S taddr taddr-realstart type-addr )
                   3483:   dup @ dup IF addr-refs @ THEN
                   3484:   swap >r
                   3485:   over align+ tuck tcell swap - rshift swap 0
1.126     jwilke   3486:   ?DO dup 1 and 
1.103     jwilke   3487:      IF drop rdrop snl-calc UNLOOP EXIT THEN 
                   3488:      2/ swap 1+ swap 
                   3489:   LOOP
                   3490:   drop r> cell+
                   3491:   ( S .. taddr2 type-addr ) dup
                   3492:   BEGIN dup @ dup IF addr-refs @ THEN 0= WHILE cell+ REPEAT
                   3493:   dup >r swap - 1 cells / tcell * + r>
                   3494:   ( S .. taddr2+skiplencells type-addr )
                   3495:   @ addr-refs @ 1 tcell lshift or
                   3496:   BEGIN dup 1 and 0= WHILE swap 1+ swap 2/ REPEAT drop
                   3497:   ( S .. taddr2+skiplencells+skiplenbytes )
                   3498:   snl-calc ;
                   3499: 
                   3500: : insert-label ( taddr -- )
                   3501:   dup 0= IF drop EXIT THEN
                   3502:   \ ignore everything which points outside our memory regions
                   3503:   \ maybe a primitive pointer or whatever
                   3504:   dup taddr>region 0= IF drop EXIT THEN
                   3505:   dup >r (>regiontype) define-addr-struct addr-refs dup @ 
                   3506:   r> tcell 1- and 1 swap lshift or swap ! ;
                   3507: 
                   3508: \ this generates a sorted list of addresses which must be labels
                   3509: \ it scans therefore a whole region
                   3510: : generate-label-list-region ( taddr len -- )
                   3511:   BEGIN over @relbit IF over X @ insert-label THEN
                   3512:         tcell /string dup 0< 
                   3513:   UNTIL 2drop ;
                   3514: 
                   3515: : generate-label-list ( -- )
                   3516:   region-link
                   3517:   BEGIN @ dup WHILE 
                   3518:         dup 0 >rlink - extent 
                   3519:         ?dup IF generate-label-list-region ELSE drop THEN
                   3520:   REPEAT drop ;
                   3521: 
                   3522: : create-outfile ( addr len -- )
                   3523:   w/o bin create-file throw outfile-fd ! ;
                   3524: 
                   3525: : close-outfile ( -- )
                   3526:   outfile-fd @ close-file throw ;
                   3527: 
                   3528: : (save-asm-region) ( region -- )
                   3529:   \ ." label list..."
                   3530:   generate-label-list
                   3531:   \ ." ok!" cr
                   3532:   extent ( S taddr len )
                   3533:   over insert-label
                   3534:   2dup + dup insert-label >r ( R end-label )
                   3535:   ( S taddr len ) drop
                   3536:   BEGIN
                   3537:      dup print-label
                   3538:      dup r@ <> WHILE
                   3539:      skip-nolables save-asm-region-part
                   3540:   REPEAT drop rdrop ;
                   3541: 
                   3542: : lineout ( addr len -- )
                   3543:   outfile-fd @ write-line throw ;  
                   3544: 
                   3545: : save-asm-region ( region adr len -- )
                   3546:   create-outfile (save-asm-region) close-outfile ;
                   3547: 
1.54      pazsan   3548: \ \ minimal definitions
                   3549:           
1.77      jwilke   3550: >MINIMAL also minimal
                   3551: 
1.1       anton    3552: \ Usefull words                                        13feb93py
                   3553: 
                   3554: : KB  400 * ;
                   3555: 
1.54      pazsan   3556: \ \ [IF] [ELSE] [THEN] ...                             14sep97jaw
                   3557: 
                   3558: \ it is useful to define our own structures and not to rely
1.109     jwilke   3559: \ on the words in the host system
                   3560: \ The words in the host system might be defined with vocabularies
1.54      pazsan   3561: \ this doesn't work with our self-made compile-loop
                   3562: 
                   3563: Create parsed 20 chars allot   \ store word we parsed
                   3564: 
                   3565: : upcase
                   3566:     parsed count bounds
                   3567:     ?DO I c@ toupper I c! LOOP ;
                   3568: 
                   3569: : [ELSE]
                   3570:     1 BEGIN
                   3571:        BEGIN bl word count dup WHILE
1.77      jwilke   3572:            comment? 20 umin parsed place upcase parsed count
1.128     anton    3573:            2dup s" [IF]" str= >r 
                   3574:            2dup s" [IFUNDEF]" str= >r
                   3575:            2dup s" [IFDEF]" str= r> or r> or
1.54      pazsan   3576:            IF   2drop 1+
1.128     anton    3577:            ELSE 2dup s" [ELSE]" str=
1.54      pazsan   3578:                IF   2drop 1- dup
                   3579:                    IF 1+
                   3580:                    THEN
                   3581:                ELSE
1.128     anton    3582:                    2dup s" [ENDIF]" str= >r
                   3583:                    s" [THEN]" str= r> or
1.54      pazsan   3584:                    IF 1- THEN
                   3585:                THEN
                   3586:            THEN
                   3587:            ?dup 0= ?EXIT
                   3588:        REPEAT
                   3589:        2drop refill 0=
                   3590:     UNTIL drop ; immediate
                   3591:   
                   3592: : [THEN] ( -- ) ; immediate
                   3593: 
                   3594: : [ENDIF] ( -- ) ; immediate
                   3595: 
                   3596: : [IF] ( flag -- )
                   3597:     0= IF postpone [ELSE] THEN ; immediate 
                   3598: 
                   3599: Cond: [IF]      postpone [IF] ;Cond
                   3600: Cond: [THEN]    postpone [THEN] ;Cond
                   3601: Cond: [ELSE]    postpone [ELSE] ;Cond
                   3602: 
1.1       anton    3603: \ define new [IFDEF] and [IFUNDEF]                      20may93jaw
                   3604: 
1.77      jwilke   3605: : defined? tdefined? ;
1.44      pazsan   3606: : needed? needed? ;
                   3607: : doer? doer? ;
1.1       anton    3608: 
1.52      jwilke   3609: \ we want to use IFDEF on compiler directives (e.g. E?) in the source, too
                   3610: 
                   3611: : directive? 
1.77      jwilke   3612:   bl word count [ ' target >wordlist ] literal search-wordlist 
1.52      jwilke   3613:   dup IF nip THEN ;
                   3614: 
                   3615: : [IFDEF]  >in @ directive? swap >in !
1.77      jwilke   3616:           0= IF tdefined? ELSE name 2drop true THEN
1.52      jwilke   3617:           postpone [IF] ;
                   3618: 
1.77      jwilke   3619: : [IFUNDEF] tdefined? 0= postpone [IF] ;
1.1       anton    3620: 
1.54      pazsan   3621: Cond: [IFDEF]   postpone [IFDEF] ;Cond
                   3622: 
                   3623: Cond: [IFUNDEF] postpone [IFUNDEF] ;Cond
                   3624: 
1.1       anton    3625: \ C: \- \+ Conditional Compiling                         09jun93jaw
                   3626: 
1.77      jwilke   3627: : C: >in @ tdefined? 0=
                   3628:      IF    >in ! X :
1.1       anton    3629:      ELSE drop
                   3630:         BEGIN bl word dup c@
1.128     anton    3631:               IF   count comment? s" ;" str= ?EXIT
1.1       anton    3632:               ELSE refill 0= ABORT" CROSS: Out of Input while C:"
                   3633:               THEN
                   3634:         AGAIN
                   3635:      THEN ;
                   3636: 
1.74      jwilke   3637: : d? d? ;
                   3638: 
1.123     jwilke   3639: : \D ( -- "debugswitch" ) 
1.74      jwilke   3640: \G doesn't skip line when debug switch is on
1.123     jwilke   3641:     D? 0= IF postpone \ THEN ;
1.52      jwilke   3642: 
1.123     jwilke   3643: : \- ( -- "wordname" )
1.48      anton    3644: \G interprets the line if word is not defined
1.123     jwilke   3645:    tdefined? IF postpone \ THEN ;
1.48      anton    3646: 
1.123     jwilke   3647: : \+ ( -- "wordname" )
1.48      anton    3648: \G interprets the line if word is defined
1.123     jwilke   3649:    tdefined? 0= IF postpone \ THEN ;
                   3650: 
                   3651: : \? ( -- "envorinstring" )
                   3652: \G Skip line if environmental variable evaluates to false
                   3653:    X has? 0= IF postpone \ THEN ;
1.1       anton    3654: 
1.48      anton    3655: Cond: \- \- ;Cond
                   3656: Cond: \+ \+ ;Cond
1.52      jwilke   3657: Cond: \D \D ;Cond
1.123     jwilke   3658: Cond: \? \? ;Cond
1.48      anton    3659: 
                   3660: : ?? bl word find IF execute ELSE drop 0 THEN ;
                   3661: 
                   3662: : needed:
                   3663: \G defines ghost for words that we want to be compiled
1.103     jwilke   3664:   BEGIN >in @ bl word c@ WHILE >in ! Ghost drop REPEAT drop ;
1.48      anton    3665: 
1.1       anton    3666: \ words that should be in minimal
1.52      jwilke   3667: 
                   3668: create s-buffer 50 chars allot
                   3669: 
1.77      jwilke   3670: bigendian Constant bigendian
1.1       anton    3671: 
1.52      jwilke   3672: : here there ;
1.67      jwilke   3673: : equ constant ;
                   3674: : mark there constant ;
1.54      pazsan   3675: 
                   3676: \ compiler directives
1.52      jwilke   3677: : >ram >ram ;
                   3678: : >rom >rom ;
                   3679: : >auto >auto ;
                   3680: : >tempdp >tempdp ;
                   3681: : tempdp> tempdp> ;
                   3682: : const constflag on ;
1.103     jwilke   3683: 
                   3684: : Redefinitions-start
                   3685: \G Starts a redefinition section. Warnings are disabled and
                   3686: \G existing ghosts are reused. This is used in the kernel
                   3687: \G where ( and \ and the like are redefined
                   3688:   twarnings off warnings off reuse-ghosts on ;
                   3689: 
                   3690: : Redefinitions-end
                   3691: \G Ends a redefinition section. Warnings are enabled again.
                   3692:   twarnings on warnings on reuse-ghosts off ;
                   3693: 
                   3694: : warnings name 3 = 
                   3695:   IF twarnings off warnings off ELSE twarnings on warnings on THEN drop ;
1.102     jwilke   3696: 
1.60      anton    3697: : | ;
                   3698: \ : | NoHeaderFlag on ; \ This is broken (damages the last word)
1.52      jwilke   3699: 
1.48      anton    3700: : save-cross save-cross ;
1.52      jwilke   3701: : save-region save-region ;
                   3702: : tdump swap >image swap dump ;
                   3703: 
1.48      anton    3704: also forth 
1.52      jwilke   3705: [IFDEF] Label           : Label defempty? Label ; [THEN] 
                   3706: [IFDEF] start-macros    : start-macros defempty? start-macros ; [THEN]
1.77      jwilke   3707: \ [IFDEF] builttag     : builttag builttag ;   [THEN]
1.48      anton    3708: previous
                   3709: 
1.52      jwilke   3710: : s" [char] " parse s-buffer place s-buffer count ; \ for environment?
1.43      pazsan   3711: : + + ;
1.52      jwilke   3712: : 1+ 1 + ;
                   3713: : 2+ 2 + ;
1.43      pazsan   3714: : 1- 1- ;
                   3715: : - - ;
1.52      jwilke   3716: : and and ;
                   3717: : or or ;
1.43      pazsan   3718: : 2* 2* ;
                   3719: : * * ;
                   3720: : / / ;
                   3721: : dup dup ;
1.139     jwilke   3722: : ?dup ?dup ;
1.43      pazsan   3723: : over over ;
                   3724: : swap swap ;
                   3725: : rot rot ;
                   3726: : drop drop ;
1.139     jwilke   3727: : 2drop 2drop ;
1.43      pazsan   3728: : =   = ;
1.122     jwilke   3729: : <>  <> ;
1.43      pazsan   3730: : 0=   0= ;
                   3731: : lshift lshift ;
                   3732: : 2/ 2/ ;
1.139     jwilke   3733: : hex. base @ $10 base ! swap . base ! ;
                   3734: : invert invert ;
1.159     pazsan   3735: : linkstring ( addr u n addr -- )
                   3736:     X here over X @ X , swap X ! X , ht-string, X align ;
1.103     jwilke   3737: \ : . . ;
1.1       anton    3738: 
1.79      jwilke   3739: : all-words    ['] forced?    IS skip? ;
1.43      pazsan   3740: : needed-words ['] needed?  IS skip? ;
1.75      jwilke   3741: : undef-words  ['] defined2? IS skip? ;
                   3742: : skipdef skipdef ;
1.1       anton    3743: 
1.40      pazsan   3744: : \  postpone \ ;  immediate
1.47      pazsan   3745: : \G T-\G ; immediate
1.40      pazsan   3746: : (  postpone ( ;  immediate
1.1       anton    3747: : include bl word count included ;
1.103     jwilke   3748: : included swap >image swap included ;
1.52      jwilke   3749: : require require ;
1.103     jwilke   3750: : needs require ;
1.1       anton    3751: : .( [char] ) parse type ;
1.139     jwilke   3752: : ERROR" [char] " parse 
                   3753:   rot 
                   3754:   IF cr ." *** " type ."  ***" -1 ABORT" CROSS: Target error, see text above" 
                   3755:   ELSE 2drop 
                   3756:   THEN ;
1.52      jwilke   3757: : ." [char] " parse type ;
1.1       anton    3758: : cr cr ;
                   3759: 
1.77      jwilke   3760: : times 0 ?DO dup X c, LOOP drop ; \ used for space table creation
                   3761: 
                   3762: \ only forth also cross also minimal definitions order
1.1       anton    3763: 
                   3764: \ cross-compiler words
                   3765: 
1.103     jwilke   3766: : decimal       decimal [g'] decimal >exec2 @ ?dup IF EXECUTE THEN ;
                   3767: : hex           hex [g'] hex >exec2 @ ?dup IF EXECUTE THEN ;
1.1       anton    3768: 
1.77      jwilke   3769: \ : tudp          X tudp ;
                   3770: \ : tup           X tup ;
                   3771: 
                   3772: : doc-off       false to-doc ! ;
                   3773: : doc-on        true  to-doc ! ;
1.39      pazsan   3774: 
1.103     jwilke   3775: : declareunique ( "name" -- )
1.127     anton    3776: \ Sets the unique flag for a ghost. The assembler output
                   3777: \ generates labels with the ghostname concatenated with the address
                   3778: \ while cross-compiling. The address is concatenated
                   3779: \ because we have double occurences of the same name.
                   3780: \ If we want to reference the labels from the assembler or C
                   3781: \ code we declare them unique, so the address is skipped.
1.103     jwilke   3782:   Ghost >ghost-flags dup @ <unique> or swap ! ;
                   3783: 
                   3784: \ [IFDEF] dbg : dbg dbg ; [THEN]
1.39      pazsan   3785: 
1.1       anton    3786: \ for debugging...
1.103     jwilke   3787: \ : dbg dbg ;
                   3788: : horder         order ;
                   3789: : hwords        words ;
                   3790: \ : words      also ghosts 
                   3791: \                words previous ;
1.105     jwilke   3792: : .s            .s ;
1.122     jwilke   3793: : depth         depth ;
1.1       anton    3794: : bye           bye ;
1.99      pazsan   3795: 
1.103     jwilke   3796: \ dummy
                   3797: 
1.1       anton    3798: \ turnkey direction
                   3799: : H forth ; immediate
                   3800: : T minimal ; immediate
                   3801: : G ghosts ; immediate
                   3802: 
                   3803: 
                   3804: \ these ones are pefered:
                   3805: 
1.74      jwilke   3806: : unlock previous forth also cross ;
1.52      jwilke   3807: 
1.77      jwilke   3808: \ also minimal
1.103     jwilke   3809: >cross
                   3810: 
                   3811: : turnkey 
                   3812:    ghosts-wordlist 1 set-order
                   3813:    also target definitions
                   3814:    also Minimal also ;
                   3815: 
                   3816: >minimal
                   3817: 
                   3818: : [[+++
                   3819:   turnkey unlock ;
1.1       anton    3820: 
                   3821: unlock definitions also minimal
1.77      jwilke   3822: 
1.103     jwilke   3823: : lock   turnkey ;
                   3824: 
                   3825: Defer +++]]-hook
                   3826: : +++]] +++]]-hook lock ;
                   3827: 
                   3828: LOCK
1.77      jwilke   3829: \ load cross compiler extension defined in mach file
                   3830: 
                   3831: UNLOCK >CROSS
                   3832: 
                   3833: [IFDEF] extend-cross extend-cross [THEN]
                   3834: 
                   3835: LOCK

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