Annotation of gforth/cross.fs, revision 1.74

1.1       anton       1: \ CROSS.FS     The Cross-Compiler                      06oct92py
                      2: \ Idea and implementation: Bernd Paysan (py)
1.30      anton       3: 
1.69      anton       4: \ Copyright (C) 1995,1996,1997,1998,1999 Free Software Foundation, Inc.
1.30      anton       5: 
                      6: \ This file is part of Gforth.
                      7: 
                      8: \ Gforth is free software; you can redistribute it and/or
                      9: \ modify it under the terms of the GNU General Public License
                     10: \ as published by the Free Software Foundation; either version 2
                     11: \ of the License, or (at your option) any later version.
                     12: 
                     13: \ This program is distributed in the hope that it will be useful,
                     14: \ but WITHOUT ANY WARRANTY; without even the implied warranty of
                     15: \ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
                     16: \ GNU General Public License for more details.
                     17: 
                     18: \ You should have received a copy of the GNU General Public License
                     19: \ along with this program; if not, write to the Free Software
                     20: \ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
1.1       anton      21: 
1.67      jwilke     22: 0 
                     23: [IF]
                     24: 
                     25: ToDo:
                     26: Crossdoc destination ./doc/crossdoc.fd makes no sense when
                     27: cross.fs is uses seperately. jaw
                     28: Do we need this char translation with >address and in branchoffset? 
                     29: (>body also affected) jaw
                     30: Clean up mark> and >resolve stuff jaw
                     31: 
                     32: [THEN]
1.48      anton      33: 
                     34: 
1.52      jwilke     35: hex     \ the defualt base for the cross-compiler is hex !!
                     36: Warnings off
                     37: 
                     38: \ words that are generaly useful
                     39: 
1.59      pazsan     40: : KB  400 * ;
1.52      jwilke     41: : >wordlist ( vocabulary-xt -- wordlist-struct )
                     42:   also execute get-order swap >r 1- set-order r> ;
                     43: 
                     44: : umax 2dup u< IF swap THEN drop ;
                     45: : umin 2dup u> IF swap THEN drop ;
1.1       anton      46: 
1.23      pazsan     47: : string, ( c-addr u -- )
                     48:     \ puts down string as cstring
                     49:     dup c, here swap chars dup allot move ;
1.5       pazsan     50: 
1.52      jwilke     51: : SetValue ( n -- <name> )
1.54      pazsan     52: \G Same behaviour as "Value" if the <name> is not defined
                     53: \G Same behaviour as "to" if <name> is defined
1.52      jwilke     54: \G SetValue searches in the current vocabulary
1.68      jwilke     55:   save-input bl word >r restore-input throw r> count
                     56:   get-current search-wordlist
                     57:   IF   drop >r
                     58:        \ we have to set current to be topmost context wordlist
                     59:        get-order get-order get-current swap 1+ set-order
                     60:        r> ['] to execute
1.74    ! jwilke     61:        set-order
1.68      jwilke     62:   ELSE Value THEN ;
1.52      jwilke     63: 
                     64: : DefaultValue ( n -- <name> )
1.54      pazsan     65: \G Same behaviour as "Value" if the <name> is not defined
                     66: \G DefaultValue searches in the current vocabulary
1.52      jwilke     67:  save-input bl word >r restore-input throw r> count
                     68:  get-current search-wordlist
1.56      pazsan     69:  IF bl word drop 2drop ELSE Value THEN ;
1.1       anton      70: 
                     71: hex
                     72: 
                     73: Vocabulary Cross
                     74: Vocabulary Target
                     75: Vocabulary Ghosts
                     76: VOCABULARY Minimal
                     77: only Forth also Target also also
                     78: definitions Forth
                     79: 
                     80: : T  previous Cross also Target ; immediate
                     81: : G  Ghosts ; immediate
                     82: : H  previous Forth also Cross ; immediate
                     83: 
                     84: forth definitions
                     85: 
                     86: : T  previous Cross also Target ; immediate
                     87: : G  Ghosts ; immediate
                     88: 
                     89: : >cross  also Cross definitions previous ;
                     90: : >target also Target definitions previous ;
                     91: : >minimal also Minimal definitions previous ;
                     92: 
                     93: H
                     94: 
                     95: >CROSS
                     96: 
1.52      jwilke     97: \ 1 Constant Cross-Flag        \ to check whether assembler compiler plug-ins are
                     98:                        \ for cross-compiling
                     99: \ No! we use "[IFUNDEF]" there to find out whether we are target compiling!!!
                    100: 
                    101: : comment? ( c-addr u -- c-addr u )
                    102:         2dup s" (" compare 0=
                    103:         IF    postpone (
                    104:         ELSE  2dup s" \" compare 0= IF postpone \ THEN
                    105:         THEN ;
                    106: 
                    107: \ Begin CROSS COMPILER:
                    108: 
                    109: 
                    110: 
                    111: \ \ --------------------        Error Handling                  05aug97jaw
                    112: 
                    113: \ Flags
                    114: 
                    115: also forth definitions  \ these values may be predefined before
                    116:                         \ the cross-compiler is loaded
                    117: 
                    118: false DefaultValue stack-warn           \ check on empty stack at any definition
                    119: false DefaultValue create-forward-warn   \ warn on forward declaration of created words
                    120: 
1.74    ! jwilke    121: 
        !           122: 
        !           123:   
1.52      jwilke    124: 
                    125: previous >CROSS
                    126: 
1.53      jwilke    127: : .dec
                    128:   base @ decimal swap . base ! ;
                    129: 
1.52      jwilke    130: : .sourcepos
                    131:   cr sourcefilename type ." :"
1.53      jwilke    132:   sourceline# .dec ;
1.52      jwilke    133: 
                    134: : warnhead
                    135: \G display error-message head
                    136: \G perhaps with linenumber and filename
                    137:   .sourcepos ." Warning: " ;
                    138: 
                    139: : empty? depth IF .sourcepos ." Stack not empty!"  THEN ;
                    140: 
                    141: stack-warn [IF]
                    142: : defempty? empty? ;
                    143: [ELSE]
                    144: : defempty? ; immediate
                    145: [THEN]
                    146: 
1.74    ! jwilke    147: \ debugging
1.52      jwilke    148: 
1.74    ! jwilke    149: 0 [IF]
        !           150: 
        !           151: This implements debugflags for the cross compiler and the compiled
        !           152: images. It works identical to the has-flags in the environment.
        !           153: The debugflags are defined in a vocabluary. If the word exists and
        !           154: its value is true, the flag is switched on.
        !           155: 
        !           156: [THEN]
        !           157: 
        !           158: Vocabulary debugflags  \ debug flags for cross
        !           159: also debugflags get-order over
        !           160: Constant debugflags-wl
        !           161: set-order previous
        !           162: 
        !           163: : DebugFlag
        !           164:   get-current >r debugflags-wl set-current
        !           165:   SetValue
        !           166:   r> set-current ;
        !           167: 
        !           168: : Debug? ( adr u -- flag )
        !           169: \G return true if debug flag is defined or switched on
        !           170:   debugflags-wl search-wordlist
        !           171:   IF EXECUTE
        !           172:   ELSE false THEN ;
        !           173: 
        !           174: : D? ( <name> -- flag )
        !           175: \G return true if debug flag is defined or switched on
        !           176: \G while compiling we do not return the current value but
        !           177:   bl word count debug? ;
        !           178: 
        !           179: : [d?]
        !           180: \G compile the value-xt so the debug flag can be switched
        !           181: \G the flag must exist!
        !           182:   bl word count debugflags-wl search-wordlist
        !           183:   IF   compile,
        !           184:   ELSE  -1 ABORT" unknown debug flag"
        !           185:        \ POSTPONE false 
        !           186:   THEN ; immediate
1.54      pazsan    187: 
1.52      jwilke    188: \ \ GhostNames Ghosts                                  9may93jaw
                    189: 
                    190: \ second name source to search trough list
                    191: 
                    192: VARIABLE GhostNames
                    193: 0 GhostNames !
                    194: 
                    195: : GhostName ( -- addr )
                    196:     here GhostNames @ , GhostNames ! here 0 ,
                    197:     bl word count
                    198:     \ 2dup type space
                    199:     string, \ !! cfalign ?
                    200:     align ;
                    201: 
                    202: \ Ghost Builder                                        06oct92py
                    203: 
                    204: \ <T T> new version with temp variable                 10may93jaw
                    205: 
                    206: VARIABLE VocTemp
                    207: 
                    208: : <T  get-current VocTemp ! also Ghosts definitions ;
                    209: : T>  previous VocTemp @ set-current ;
                    210: 
                    211: hex
                    212: 4711 Constant <fwd>             4712 Constant <res>
                    213: 4713 Constant <imm>             4714 Constant <do:>
                    214: 
                    215: \ iForth makes only immediate directly after create
                    216: \ make atonce trick! ?
                    217: 
                    218: Variable atonce atonce off
                    219: 
                    220: : NoExec true ABORT" CROSS: Don't execute ghost" ;
                    221: 
                    222: : GhostHeader <fwd> , 0 , ['] NoExec , ;
                    223: 
                    224: : >magic ;             \ type of ghost
                    225: : >link cell+ ;                \ pointer where ghost is in target, or if unresolved
                    226:                        \ points to the where we have to resolve (linked-list)
                    227: : >exec cell+ cell+ ;  \ execution symantics (while target compiling) of ghost
                    228: : >end 3 cells + ;     \ room for additional tags
                    229:                        \ for builder (create, variable...) words the
                    230:                        \ execution symantics of words built are placed here
                    231: 
                    232: Variable executed-ghost \ last executed ghost, needed in tcreate and gdoes>
                    233: Variable last-ghost    \ last ghost that is created
                    234: Variable last-header-ghost \ last ghost definitions with header
                    235: 
                    236: : Make-Ghost ( "name" -- ghost )
                    237:   >in @ GhostName swap >in !
                    238:   <T Create atonce @ IF immediate atonce off THEN
                    239:   here tuck swap ! ghostheader T>
                    240:   dup last-ghost !
                    241:   DOES> dup executed-ghost ! >exec @ execute ;
                    242: 
                    243: \ ghost words                                          14oct92py
                    244: \                                          changed:    10may93py/jaw
                    245: 
                    246: : gfind   ( string -- ghost true/1 / string false )
                    247: \ searches for string in word-list ghosts
                    248:   dup count [ ' ghosts >wordlist ] ALiteral search-wordlist
                    249:   dup IF >r >body nip r>  THEN ;
                    250: 
                    251: : gdiscover ( xt -- ghost true | xt false )
                    252:   GhostNames
                    253:   BEGIN @ dup
                    254:   WHILE 2dup
                    255:         cell+ @ dup >magic @ <fwd> <>
                    256:         >r >link @ = r> and
                    257:         IF cell+ @ nip true EXIT THEN
                    258:   REPEAT
                    259:   drop false ;
                    260: 
                    261: VARIABLE Already
                    262: 
                    263: : ghost   ( "name" -- ghost )
                    264:   Already off
                    265:   >in @  bl word gfind   IF  Already on nip EXIT  THEN
                    266:   drop  >in !  Make-Ghost ;
                    267: 
                    268: : >ghostname ( ghost -- adr len )
                    269:   GhostNames
                    270:   BEGIN @ dup
                    271:   WHILE 2dup cell+ @ =
                    272:   UNTIL nip 2 cells + count
1.54      pazsan    273:   ELSE  2drop 
                    274:        \ true abort" CROSS: Ghostnames inconsistent"
                    275:        s" ?!?!?!"
1.52      jwilke    276:   THEN ;
                    277: 
                    278: ' >ghostname ALIAS @name
                    279: 
                    280: : forward? ( ghost -- flag )
                    281:   >magic @ <fwd> = ;
                    282: 
                    283: \ Predefined ghosts                                    12dec92py
                    284: 
                    285: ghost 0=                                        drop
                    286: ghost branch    ghost ?branch                   2drop
                    287: ghost (do)      ghost (?do)                     2drop
                    288: ghost (for)                                     drop
                    289: ghost (loop)    ghost (+loop)                   2drop
                    290: ghost (next)                                    drop
                    291: ghost unloop    ghost ;S                        2drop
                    292: ghost lit       ghost (compile) ghost !         2drop drop
                    293: ghost (does>)   ghost noop                      2drop
                    294: ghost (.")      ghost (S")      ghost (ABORT")  2drop drop
                    295: ghost '                                         drop
                    296: ghost :docol    ghost :doesjump ghost :dodoes   2drop drop
1.54      pazsan    297: ghost :dovar                                   drop
1.52      jwilke    298: ghost over      ghost =         ghost drop      2drop drop
                    299: ghost - drop
1.54      pazsan    300: ghost 2drop drop
                    301: ghost 2dup drop
1.52      jwilke    302: 
                    303: \ \ Parameter for target systems                         06oct92py
                    304: 
                    305: \ we define it ans like...
                    306: wordlist Constant target-environment
                    307: 
                    308: VARIABLE env-current \ save information of current dictionary to restore with environ>
                    309: 
                    310: : >ENVIRON get-current env-current ! target-environment set-current ;
                    311: : ENVIRON> env-current @ set-current ; 
1.43      pazsan    312: 
1.48      anton     313: >TARGET
1.43      pazsan    314: 
1.67      jwilke    315: : environment? ( adr len -- [ x ] true | false )
1.52      jwilke    316:   target-environment search-wordlist 
                    317:   IF execute true ELSE false THEN ;
                    318: 
1.67      jwilke    319: : e? bl word count T environment? H 0= ABORT" environment variable not defined!" ;
1.52      jwilke    320: 
1.67      jwilke    321: : has?         bl word count T environment? H 
1.53      jwilke    322:        IF      \ environment variable is present, return its value
                    323:        ELSE    \ environment variable is not present, return false
                    324:                \ !! JAW abort is just for testing
                    325:                false true ABORT" arg" 
                    326:        THEN ;
1.52      jwilke    327: 
                    328: : $has? T environment? H IF ELSE false THEN ;
1.48      anton     329: 
1.54      pazsan    330: >ENVIRON get-order get-current swap 1+ set-order
                    331: true SetValue compiler
1.53      jwilke    332: true  SetValue cross
1.54      pazsan    333: true SetValue standard-threading
                    334: >TARGET previous
1.52      jwilke    335: 
1.59      pazsan    336: 
1.52      jwilke    337: mach-file count included hex
1.43      pazsan    338: 
1.53      jwilke    339: >ENVIRON
                    340: 
1.54      pazsan    341: T has? ec H
                    342: [IF]
                    343: false DefaultValue relocate
                    344: false DefaultValue file
                    345: false DefaultValue OS
                    346: false DefaultValue prims
                    347: false DefaultValue floating
                    348: false DefaultValue glocals
                    349: false DefaultValue dcomps
                    350: false DefaultValue hash
                    351: false DefaultValue xconds
                    352: false DefaultValue header
                    353: [THEN]
                    354: 
                    355: true DefaultValue interpreter
                    356: true DefaultValue ITC
                    357: false DefaultValue rom
1.73      jwilke    358: true DefaultValue standardthreading
1.53      jwilke    359: 
1.52      jwilke    360: >TARGET
1.53      jwilke    361: s" relocate" T environment? H 
                    362: [IF]   SetValue NIL
                    363: [ELSE] >ENVIRON T NIL H SetValue relocate
                    364: [THEN]
1.43      pazsan    365: 
                    366: >CROSS
                    367: 
1.52      jwilke    368: \ \ Create additional parameters                         19jan95py
1.19      pazsan    369: 
1.71      jwilke    370: \ currently cross only works for host machines with address-unit-bits
                    371: \ eual to 8 because of s! and sc!
                    372: \ but I start to query the environment just to modularize a little bit
                    373: 
                    374: : check-address-unit-bits ( -- )       
                    375: \      s" ADDRESS-UNIT-BITS" environment?
                    376: \      IF 8 <> ELSE true THEN
                    377: \      ABORT" ADDRESS-UNIT-BITS unknown or not equal to 8!"
                    378: 
                    379: \      shit, this doesn't work because environment? is only defined for 
                    380: \      gforth.fi and not kernl???.fi
                    381:        ;
                    382: 
                    383: check-address-unit-bits
                    384: 8 Constant bits/byte   \ we define: byte is address-unit
                    385: 
                    386: 1 bits/byte lshift Constant maxbyte 
1.67      jwilke    387: \ this sets byte size for the target machine, an (probably right guess) jaw
                    388: 
1.19      pazsan    389: T
1.71      jwilke    390: NIL                    Constant TNIL
                    391: cell                   Constant tcell
                    392: cell<<                 Constant tcell<<
                    393: cell>bit               Constant tcell>bit
                    394: bits/char              Constant tbits/char
                    395: bits/char H bits/byte T /      
                    396:                        Constant tchar
                    397: float                  Constant tfloat
                    398: 1 bits/char lshift     Constant tmaxchar
                    399: [IFUNDEF] bits/byte
                    400: 8                      Constant tbits/byte
                    401: [ELSE]
                    402: bits/byte              Constant tbits/byte
                    403: [THEN]
1.19      pazsan    404: H
1.71      jwilke    405: tbits/byte bits/byte / Constant tbyte
                    406: 
1.19      pazsan    407: 
1.48      anton     408: \ Variables                                            06oct92py
                    409: 
                    410: Variable image
                    411: Variable tlast    TNIL tlast !  \ Last name field
                    412: Variable tlastcfa \ Last code field
                    413: Variable tdoes    \ Resolve does> calls
                    414: Variable bit$
1.52      jwilke    415: 
                    416: \ statistics                                           10jun97jaw
                    417: 
                    418: Variable headers-named 0 headers-named !
                    419: Variable user-vars 0 user-vars !
                    420: 
1.67      jwilke    421: : target>bitmask-size ( u1 -- u2 )
                    422:   1- tcell>bit rshift 1+ ;
                    423: 
                    424: : allocatetarget ( size --- adr )
                    425:   dup allocate ABORT" CROSS: No memory for target"
                    426:   swap over swap erase ;
1.52      jwilke    427: 
1.54      pazsan    428: \ \ memregion.fs
1.52      jwilke    429: 
                    430: 
                    431: Variable last-defined-region    \ pointer to last defined region
                    432: Variable region-link            \ linked list with all regions
                    433: Variable mirrored-link          \ linked list for mirrored regions
                    434: 0 dup mirrored-link ! region-link !
                    435: 
                    436: 
1.67      jwilke    437: : >rname 6 cells + ;
                    438: : >rbm   5 cells + ;
                    439: : >rmem  4 cells + ;
                    440: : >rlink 3 cells + ;
1.52      jwilke    441: : >rdp 2 cells + ;
                    442: : >rlen cell+ ;
                    443: : >rstart ;
                    444: 
                    445: 
                    446: : region ( addr len -- )                \G create a new region
                    447:   \ check whether predefined region exists 
                    448:   save-input bl word find >r >r restore-input throw r> r> 0= 
                    449:   IF   \ make region
                    450:        drop
                    451:        save-input create restore-input throw
                    452:        here last-defined-region !
                    453:        over ( startaddr ) , ( length ) , ( dp ) ,
1.67      jwilke    454:        region-link linked 0 , 0 , bl word count string,
1.52      jwilke    455:   ELSE \ store new parameters in region
                    456:         bl word drop
                    457:        >body >r r@ last-defined-region !
1.67      jwilke    458:        r@ >rlen ! dup r@ >rstart ! r> >rdp !
1.52      jwilke    459:   THEN ;
                    460: 
                    461: : borders ( region -- startaddr endaddr ) \G returns lower and upper region border
1.67      jwilke    462:   dup >rstart @ swap >rlen @ over + ;
1.52      jwilke    463: 
                    464: : extent  ( region -- startaddr len )   \G returns the really used area
1.67      jwilke    465:   dup >rstart @ swap >rdp @ over - ;
1.52      jwilke    466: 
                    467: : area ( region -- startaddr totallen ) \G returns the total area
1.67      jwilke    468:   dup >rstart swap >rlen @ ;
1.52      jwilke    469: 
                    470: : mirrored                              \G mark a region as mirrored
                    471:   mirrored-link
1.68      jwilke    472:   align linked last-defined-region @ , ;
1.52      jwilke    473: 
1.67      jwilke    474: : .addr ( u -- )
                    475: \G prints a 16 or 32 Bit nice hex value
1.52      jwilke    476:   base @ >r hex
                    477:   tcell 2 u>
                    478:   IF s>d <# # # # # '. hold # # # # #> type
                    479:   ELSE s>d <# # # # # # #> type
                    480:   THEN r> base ! ;
                    481: 
                    482: : .regions                      \G display region statistic
                    483: 
                    484:   \ we want to list the regions in the right order
                    485:   \ so first collect all regions on stack
                    486:   0 region-link @
                    487:   BEGIN dup WHILE dup @ REPEAT drop
                    488:   BEGIN dup
1.67      jwilke    489:   WHILE cr
                    490:         0 >rlink - >r
                    491:         r@ >rname count tuck type
1.52      jwilke    492:         12 swap - 0 max spaces space
1.67      jwilke    493:         ." Start: " r@ >rstart @ dup .addr space
                    494:         ." End: " r@ >rlen @ + .addr space
                    495:         ." DP: " r> >rdp @ .addr
1.52      jwilke    496:   REPEAT drop
1.53      jwilke    497:   s" rom" T $has? H 0= ?EXIT
1.52      jwilke    498:   cr ." Mirrored:"
                    499:   mirrored-link @
                    500:   BEGIN dup
1.67      jwilke    501:   WHILE space dup cell+ @ >rname count type @
1.52      jwilke    502:   REPEAT drop cr
                    503:   ;
                    504: 
                    505: \ -------- predefined regions
                    506: 
                    507: 0 0 region address-space
                    508: \ total memory addressed and used by the target system
                    509: 
                    510: 0 0 region dictionary
                    511: \ rom area for the compiler
                    512: 
1.53      jwilke    513: T has? rom H
1.52      jwilke    514: [IF]
                    515: 0 0 region ram-dictionary mirrored
                    516: \ ram area for the compiler
                    517: [ELSE]
                    518: ' dictionary ALIAS ram-dictionary
                    519: [THEN]
                    520: 
                    521: 0 0 region return-stack
                    522: 
                    523: 0 0 region data-stack
                    524: 
                    525: 0 0 region tib-region
                    526: 
                    527: ' dictionary ALIAS rom-dictionary
                    528: 
                    529: 
                    530: : setup-target ( -- )   \G initialize targets memory space
1.53      jwilke    531:   s" rom" T $has? H
1.52      jwilke    532:   IF  \ check for ram and rom...
1.72      jwilke    533:       \ address-space area nip 0<>
1.67      jwilke    534:       ram-dictionary area nip 0<>
                    535:       rom-dictionary area nip 0<>
1.72      jwilke    536:       and 0=
1.52      jwilke    537:       ABORT" CROSS: define address-space, rom- , ram-dictionary, with rom-support!"
                    538:   THEN
                    539:   address-space area nip
                    540:   IF
                    541:       address-space area
                    542:   ELSE
                    543:       dictionary area
                    544:   THEN
1.67      jwilke    545:   nip 0=
1.52      jwilke    546:   ABORT" CROSS: define at least address-space or dictionary!!"
1.67      jwilke    547: 
                    548:   \ allocate target for each region
                    549:   region-link
                    550:   BEGIN @ dup
                    551:   WHILE dup
                    552:         0 >rlink - >r
                    553:         r@ >rlen @
                    554:         IF      \ allocate mem
                    555:                 r@ >rlen @ dup
                    556: 
                    557:                 allocatetarget dup image !
                    558:                 r@ >rmem !
                    559: 
                    560:                 target>bitmask-size allocatetarget
1.72      jwilke    561:                 dup bit$ !
1.67      jwilke    562:                 r> >rbm !
                    563: 
                    564:         ELSE    r> drop THEN
1.72      jwilke    565:    REPEAT drop ;
                    566: 
                    567: \ MakeKernal                                                           22feb99jaw
                    568: 
                    569: : makekernel ( targetsize -- targetsize )
                    570:   dup dictionary >rlen ! setup-target ;
                    571: 
                    572: >MINIMAL
                    573: : makekernel makekernel ;
                    574: >CROSS
1.52      jwilke    575: 
1.54      pazsan    576: \ \ switched tdp for rom support                               03jun97jaw
1.52      jwilke    577: 
                    578: \ second value is here to store some maximal value for statistics
                    579: \ tempdp is also embedded here but has nothing to do with rom support
                    580: \ (needs switched dp)
                    581: 
                    582: variable tempdp        0 ,     \ temporary dp for resolving
                    583: variable tempdp-save
                    584: 
                    585: 0 [IF]
                    586: variable romdp 0 ,      \ Dictionary-Pointer for ramarea
                    587: variable ramdp 0 ,      \ Dictionary-Pointer for romarea
                    588: 
                    589: \
                    590: variable sramdp                \ start of ram-area for forth
                    591: variable sromdp                \ start of rom-area for forth
                    592: 
                    593: [THEN]
                    594: 
                    595: 
                    596: 0 value tdp
                    597: variable fixed         \ flag: true: no automatic switching
                    598:                        \       false: switching is done automatically
                    599: 
                    600: \ Switch-Policy:
                    601: \
                    602: \ a header is always compiled into rom
                    603: \ after a created word (create and variable) compilation goes to ram
                    604: \
                    605: \ Be careful: If you want to make the data behind create into rom
                    606: \ you have to put >rom before create!
                    607: 
                    608: variable constflag constflag off
                    609: 
1.67      jwilke    610: : activate ( region -- )
                    611: \G next code goes to this region
                    612:   >rdp to tdp ;
                    613: 
1.52      jwilke    614: : (switchram)
1.53      jwilke    615:   fixed @ ?EXIT s" rom" T $has? H 0= ?EXIT
1.67      jwilke    616:   ram-dictionary activate ;
1.52      jwilke    617: 
                    618: : switchram
                    619:   constflag @
                    620:   IF constflag off ELSE (switchram) THEN ;
                    621: 
                    622: : switchrom
1.67      jwilke    623:   fixed @ ?EXIT rom-dictionary activate ;
1.52      jwilke    624: 
                    625: : >tempdp ( addr -- ) 
                    626:   tdp tempdp-save ! tempdp to tdp tdp ! ;
                    627: : tempdp> ( -- )
                    628:   tempdp-save @ to tdp ;
                    629: 
                    630: : >ram  fixed off (switchram) fixed on ;
                    631: : >rom  fixed off switchrom fixed on ;
                    632: : >auto fixed off switchrom ;
                    633: 
                    634: 
                    635: 
                    636: \ : romstart dup sromdp ! romdp ! ;
                    637: \ : ramstart dup sramdp ! ramdp ! ;
                    638: 
1.67      jwilke    639: \ default compilation goes to rom
1.52      jwilke    640: \ when romable support is off, only the rom switch is used (!!)
                    641: >auto
                    642: 
1.48      anton     643: : there  tdp @ ;
                    644: 
1.52      jwilke    645: >TARGET
1.48      anton     646: 
1.52      jwilke    647: \ \ Target Memory Handling
1.1       anton     648: 
                    649: \ Byte ordering and cell size                          06oct92py
                    650: 
1.19      pazsan    651: : cell+         tcell + ;
                    652: : cells         tcell<< lshift ;
1.71      jwilke    653: : chars         tchar * ;
                    654: : char+                tchar + ;
1.19      pazsan    655: : floats       tfloat * ;
1.6       anton     656:     
1.1       anton     657: >CROSS
1.19      pazsan    658: : cell/         tcell<< rshift ;
1.1       anton     659: >TARGET
                    660: 20 CONSTANT bl
1.52      jwilke    661: \ TNIL Constant NIL
1.1       anton     662: 
                    663: >CROSS
                    664: 
1.20      pazsan    665: bigendian
                    666: [IF]
1.52      jwilke    667:    : S!  ( n addr -- )  >r s>d r> tcell bounds swap 1-
1.20      pazsan    668:      DO  maxbyte ud/mod rot I c!  -1 +LOOP  2drop ;
1.52      jwilke    669:    : S@  ( addr -- n )  >r 0 0 r> tcell bounds
1.20      pazsan    670:      DO  maxbyte * swap maxbyte um* rot + swap I c@ + swap  LOOP d>s ;
1.57      pazsan    671:    : Sc!  ( n addr -- )  >r s>d r> tchar bounds swap 1-
                    672:      DO  maxbyte ud/mod rot I c!  -1 +LOOP  2drop ;
                    673:    : Sc@  ( addr -- n )  >r 0 0 r> tchar bounds
                    674:      DO  maxbyte * swap maxbyte um* rot + swap I c@ + swap  LOOP d>s ;
1.19      pazsan    675: [ELSE]
1.52      jwilke    676:    : S!  ( n addr -- )  >r s>d r> tcell bounds
1.20      pazsan    677:      DO  maxbyte ud/mod rot I c!  LOOP  2drop ;
1.52      jwilke    678:    : S@  ( addr -- n )  >r 0 0 r> tcell bounds swap 1-
1.20      pazsan    679:      DO  maxbyte * swap maxbyte um* rot + swap I c@ + swap  -1 +LOOP d>s ;
1.57      pazsan    680:    : Sc!  ( n addr -- )  >r s>d r> tchar bounds
                    681:      DO  maxbyte ud/mod rot I c!  LOOP  2drop ;
                    682:    : Sc@  ( addr -- n )  >r 0 0 r> tchar bounds swap 1-
                    683:      DO  maxbyte * swap maxbyte um* rot + swap I c@ + swap  -1 +LOOP d>s ;
1.1       anton     684: [THEN]
                    685: 
1.67      jwilke    686: : taddr>region ( taddr -- region | 0 )
                    687: \G finds for a target-address the correct region
                    688: \G returns 0 if taddr is not in range of a target memory region
                    689:   region-link
                    690:   BEGIN @ dup
                    691:   WHILE dup >r
                    692:         0 >rlink - >r
                    693:         r@ >rlen @
                    694:         IF      dup r@ borders within
                    695:                 IF r> r> drop nip EXIT THEN
                    696:         THEN
                    697:         r> drop
                    698:         r>
                    699:   REPEAT
                    700:   2drop 0 ;
                    701: 
                    702: : (>regionimage) ( taddr -- 'taddr )
                    703:   dup
                    704:   \ find region we want to address
                    705:   taddr>region dup 0= ABORT" Address out of range!"
                    706:   >r
                    707:   \ calculate offset in region
                    708:   r@ >rstart @ -
                    709:   \ add regions real address in our memory
                    710:   r> >rmem @ + ;
                    711: 
1.1       anton     712: \ Bit string manipulation                               06oct92py
                    713: \                                                       9may93jaw
                    714: CREATE Bittable 80 c, 40 c, 20 c, 10 c, 8 c, 4 c, 2 c, 1 c,
                    715: : bits ( n -- n ) chars Bittable + c@ ;
                    716: 
                    717: : >bit ( addr n -- c-addr mask ) 8 /mod rot + swap bits ;
                    718: : +bit ( addr n -- )  >bit over c@ or swap c! ;
1.4       pazsan    719: : -bit ( addr n -- )  >bit invert over c@ and swap c! ;
1.67      jwilke    720: 
                    721: : (relon) ( taddr -- )  bit$ @ swap cell/ +bit ;
                    722: : (reloff) ( taddr -- ) bit$ @ swap cell/ -bit ;
                    723: 
                    724: : (>image) ( taddr -- absaddr ) image @ + ;
                    725: 
                    726: DEFER >image
                    727: DEFER relon
                    728: DEFER reloff
                    729: DEFER correcter
                    730: 
                    731: T has? relocate H
                    732: [IF]
                    733: ' (relon) IS relon
                    734: ' (reloff) IS reloff
                    735: ' (>image) IS >image
                    736: [ELSE]
                    737: ' drop IS relon
                    738: ' drop IS reloff
1.68      jwilke    739: ' (>regionimage) IS >image
1.67      jwilke    740: [THEN]
1.1       anton     741: 
                    742: \ Target memory access                                 06oct92py
                    743: 
                    744: : align+  ( taddr -- rest )
1.48      anton     745:     tcell tuck 1- and - [ tcell 1- ] Literal and ;
1.22      anton     746: : cfalign+  ( taddr -- rest )
1.39      pazsan    747:     \ see kernel.fs:cfaligned
1.43      pazsan    748:     /maxalign tuck 1- and - [ /maxalign 1- ] Literal and ;
1.1       anton     749: 
                    750: >TARGET
                    751: : aligned ( taddr -- ta-addr )  dup align+ + ;
                    752: \ assumes cell alignment granularity (as GNU C)
                    753: 
1.22      anton     754: : cfaligned ( taddr1 -- taddr2 )
1.39      pazsan    755:     \ see kernel.fs
1.22      anton     756:     dup cfalign+ + ;
                    757: 
1.52      jwilke    758: : @  ( taddr -- w )     >image S@ ;
                    759: : !  ( w taddr -- )     >image S! ;
1.57      pazsan    760: : c@ ( taddr -- char )  >image Sc@ ;
                    761: : c! ( char taddr -- )  >image Sc! ;
1.7       anton     762: : 2@ ( taddr -- x1 x2 ) T dup cell+ @ swap @ H ;
                    763: : 2! ( x1 x2 taddr -- ) T swap over ! cell+ ! H ;
1.1       anton     764: 
                    765: \ Target compilation primitives                        06oct92py
                    766: \ included A!                                          16may93jaw
                    767: 
                    768: : here  ( -- there )    there ;
                    769: : allot ( n -- )        tdp +! ;
1.52      jwilke    770: : ,     ( w -- )        T here H tcell T allot  ! H T here drop H ;
1.57      pazsan    771: : c,    ( char -- )     T here    tchar allot c! H ;
1.67      jwilke    772: : align ( -- )          T here H align+ 0 ?DO  bl T c, tchar H +LOOP ;
1.22      anton     773: : cfalign ( -- )
1.59      pazsan    774:     T here H cfalign+ 0 ?DO  bl T c, tchar H +LOOP ;
1.1       anton     775: 
1.71      jwilke    776: : >address             dup 0>= IF tbyte / THEN ; \ ?? jaw 
1.59      pazsan    777: : A!                    swap >address swap dup relon T ! H ;
                    778: : A,    ( w -- )        >address T here H relon T , H ;
1.1       anton     779: 
                    780: >CROSS
                    781: 
1.52      jwilke    782: : tcmove ( source dest len -- )
                    783: \G cmove in target memory
1.57      pazsan    784:   tchar * bounds
1.52      jwilke    785:   ?DO  dup T c@ H I T c! H 1+
1.57      pazsan    786:   tchar +LOOP  drop ;
1.1       anton     787: 
1.67      jwilke    788: \ \ Load Assembler
                    789: 
1.1       anton     790: >TARGET
1.74    ! jwilke    791: H also Forth definitions
1.1       anton     792: 
1.52      jwilke    793: : X    also target bl word find
                    794:        IF      state @ IF compile,
                    795:                ELSE execute THEN
                    796:        ELSE    previous ABORT" Cross: access method not supported!"
                    797:        THEN 
                    798:        previous ; immediate
1.1       anton     799: 
1.52      jwilke    800: [IFDEF] asm-include asm-include [THEN] hex
1.1       anton     801: 
1.52      jwilke    802: previous
                    803: >CROSS H
1.1       anton     804: 
1.52      jwilke    805: \ \ --------------------        Compiler Plug Ins               01aug97jaw
1.1       anton     806: 
1.54      pazsan    807: \  Compiler States
                    808: 
                    809: Variable comp-state
                    810: 0 Constant interpreting
                    811: 1 Constant compiling
                    812: 2 Constant resolving
                    813: 3 Constant assembling
                    814: 
1.52      jwilke    815: Defer lit, ( n -- )
                    816: Defer alit, ( n -- )
1.54      pazsan    817: 
                    818: Defer branch, ( target-addr -- )       \ compiles a branch
                    819: Defer ?branch, ( target-addr -- )      \ compiles a ?branch
                    820: Defer branchmark, ( -- branch-addr )   \ reserves room for a branch
                    821: Defer ?branchmark, ( -- branch-addr )  \ reserves room for a ?branch
                    822: Defer ?domark, ( -- branch-addr )      \ reserves room for a ?do branch
                    823: Defer branchto, ( -- )                 \ actual program position is target of a branch (do e.g. alignment)
                    824: Defer branchtoresolve, ( branch-addr -- ) \ resolves a forward reference from branchmark
                    825: Defer branchfrom, ( -- )               \ ?!
                    826: Defer branchtomark, ( -- target-addr ) \ marks a branch destination
                    827: 
1.52      jwilke    828: Defer colon, ( tcfa -- )               \ compiles call to tcfa at current position
1.54      pazsan    829: Defer colonmark, ( -- addr )           \ marks a colon call
1.52      jwilke    830: Defer colon-resolve ( tcfa addr -- )
1.54      pazsan    831: 
1.52      jwilke    832: Defer addr-resolve ( target-addr addr -- )
1.54      pazsan    833: Defer doer-resolve ( ghost res-pnt target-addr addr -- ghost res-pnt )
                    834: 
                    835: Defer do,      ( -- do-token )
                    836: Defer ?do,     ( -- ?do-token )
                    837: Defer for,     ( -- for-token )
                    838: Defer loop,    ( do-token / ?do-token -- )
                    839: Defer +loop,   ( do-token / ?do-token -- )
                    840: Defer next,    ( for-token )
1.1       anton     841: 
1.52      jwilke    842: [IFUNDEF] ca>native
                    843: defer ca>native        
                    844: [THEN]
1.1       anton     845: 
1.52      jwilke    846: >TARGET
                    847: DEFER >body             \ we need the system >body
                    848:                        \ and the target >body
                    849: >CROSS
                    850: T 2 cells H VALUE xt>body
1.54      pazsan    851: DEFER doprim,  \ compiles start of a primitive
                    852: DEFER docol,           \ compiles start of a colon definition
1.52      jwilke    853: DEFER doer,            
                    854: DEFER fini,      \ compiles end of definition ;s
                    855: DEFER doeshandler,
                    856: DEFER dodoes,
                    857: 
                    858: DEFER ]comp     \ starts compilation
                    859: DEFER comp[     \ ends compilation
                    860: 
1.54      pazsan    861: : (cc) T a, H ;                                        ' (cc) IS colon,
                    862: 
                    863: : (cr) >tempdp ]comp colon, comp[ tempdp> ;    ' (cr) IS colon-resolve
                    864: : (ar) T ! H ;                                 ' (ar) IS addr-resolve
                    865: : (dr)  ( ghost res-pnt target-addr addr )
                    866:        >tempdp drop over 
                    867:        dup >magic @ <do:> =
                    868:        IF      doer,
                    869:        ELSE    dodoes,
                    870:        THEN 
                    871:        tempdp> ;                               ' (dr) IS doer-resolve
                    872: 
                    873: : (cm) ( -- addr )
                    874:     T here align H
                    875:     -1 colon, ;                                        ' (cm) IS colonmark,
1.1       anton     876: 
1.52      jwilke    877: >TARGET
                    878: : compile, colon, ;
                    879: >CROSS
1.1       anton     880: 
1.53      jwilke    881: \ file loading
                    882: 
1.54      pazsan    883: : >fl-id   1 cells + ;
                    884: : >fl-name 2 cells + ;
                    885: 
1.53      jwilke    886: Variable filelist 0 filelist !
1.67      jwilke    887: Create NoFile ," #load-file#"
1.54      pazsan    888: 0 Value         filemem
1.67      jwilke    889: : loadfile  FileMem ?dup IF >fl-name ELSE NoFile THEN ;
1.53      jwilke    890: 
1.54      pazsan    891: 1 [IF] \ !! JAW WIP
1.1       anton     892: 
1.53      jwilke    893: : add-included-file ( adr len -- )
1.54      pazsan    894:        dup char+ >fl-name allocate throw >r
                    895:        r@ >fl-name place
1.53      jwilke    896:        filelist @ r@ !
1.54      pazsan    897:        r> dup filelist ! to FileMem
                    898:        ;
1.53      jwilke    899: 
                    900: : included? ( c-addr u -- f )
                    901:        filelist
                    902:        BEGIN   @ dup
                    903:        WHILE   >r r@ 1 cells + count compare 0=
                    904:                IF rdrop 2drop true EXIT THEN
                    905:                r>
                    906:        REPEAT
                    907:        2drop drop false ;      
                    908: 
1.74    ! jwilke    909: false DebugFlag showincludedfiles
        !           910: 
1.53      jwilke    911: : included 
1.74    ! jwilke    912:        [d?] showincludedfiles
        !           913:        IF      cr ." Including: " 2dup type ." ..." THEN
1.54      pazsan    914:        FileMem >r
                    915:        2dup add-included-file included 
                    916:        r> to FileMem ;
1.53      jwilke    917: 
                    918: : include bl word count included ;
                    919: 
                    920: : require bl word count included ;
                    921: 
                    922: [THEN]
1.1       anton     923: 
1.52      jwilke    924: \ resolve structure
1.1       anton     925: 
1.52      jwilke    926: : >next ;              \ link to next field
1.54      pazsan    927: : >tag cell+ ;         \ indecates type of reference: 0: call, 1: address, 2: doer
1.53      jwilke    928: : >taddr cell+ cell+ ; 
1.52      jwilke    929: : >ghost 3 cells + ;
1.53      jwilke    930: : >file 4 cells + ;
                    931: : >line 5 cells + ;
1.48      anton     932: 
1.54      pazsan    933: : (refered) ( ghost addr tag -- )
                    934: \G creates a reference to ghost at address taddr
                    935:     rot >r here r@ >link @ , r> >link ! 
                    936:     ( taddr tag ) ,
                    937:     ( taddr ) , 
                    938:     last-header-ghost @ , 
                    939:     loadfile , 
                    940:     sourceline# , 
                    941:   ;
                    942: 
1.52      jwilke    943: : refered ( ghost tag -- )
1.53      jwilke    944: \G creates a resolve structure
1.54      pazsan    945:     T here aligned H swap (refered)
                    946:   ;
                    947: 
                    948: : killref ( addr ghost -- )
                    949: \G kills a forward reference to ghost at position addr
                    950: \G this is used to eleminate a :dovar refence after making a DOES>
                    951:     dup >magic @ <fwd> <> IF 2drop EXIT THEN
                    952:     swap >r >link
                    953:     BEGIN dup @ dup  ( addr last this )
                    954:     WHILE dup >taddr @ r@ =
                    955:         IF   @ over !
                    956:         ELSE nip THEN
                    957:     REPEAT rdrop 2drop 
1.53      jwilke    958:   ;
1.48      anton     959: 
1.52      jwilke    960: Defer resolve-warning
1.1       anton     961: 
1.52      jwilke    962: : reswarn-test ( ghost res-struct -- ghost res-struct )
                    963:   over cr ." Resolving " >ghostname type dup ."  in " >ghost @ >ghostname type ;
1.1       anton     964: 
1.52      jwilke    965: : reswarn-forward ( ghost res-struct -- ghost res-struct )
                    966:   over warnhead >ghostname type dup ."  is referenced in " 
                    967:   >ghost @ >ghostname type ;
1.1       anton     968: 
1.52      jwilke    969: \ ' reswarn-test IS resolve-warning
                    970:  
1.1       anton     971: \ resolve                                              14oct92py
                    972: 
1.54      pazsan    973:  : resolve-loop ( ghost resolve-list tcfa -- )
                    974:     >r
                    975:     BEGIN dup WHILE 
                    976: \        dup >tag @ 2 = IF reswarn-forward THEN
                    977:          resolve-warning 
                    978:          r@ over >taddr @ 
                    979:          2 pick >tag @
                    980:          CASE  0 OF colon-resolve ENDOF
                    981:                1 OF addr-resolve ENDOF
                    982:                2 OF doer-resolve ENDOF
                    983:          ENDCASE
                    984:          @ \ next list element
                    985:     REPEAT 2drop rdrop 
                    986:   ;
1.52      jwilke    987: 
                    988: \ : resolve-loop ( ghost tcfa -- ghost tcfa )
                    989: \  >r dup >link @
                    990: \  BEGIN  dup  WHILE  dup T @ H r@ rot T ! H REPEAT  drop r> ;
1.1       anton     991: 
                    992: \ exists                                                9may93jaw
                    993: 
1.52      jwilke    994: Variable TWarnings
                    995: TWarnings on
                    996: Variable Exists-Warnings
                    997: Exists-Warnings on
                    998: 
1.1       anton     999: : exists ( ghost tcfa -- )
                   1000:   over GhostNames
                   1001:   BEGIN @ dup
                   1002:   WHILE 2dup cell+ @ =
                   1003:   UNTIL
1.52      jwilke   1004:         2 cells + count
                   1005:         TWarnings @ Exists-Warnings @ and
                   1006:         IF warnhead type ."  exists"
                   1007:         ELSE 2drop THEN
                   1008:         drop swap >link !
1.24      pazsan   1009:   ELSE  true abort" CROSS: Ghostnames inconsistent "
1.1       anton    1010:   THEN ;
                   1011: 
                   1012: : resolve  ( ghost tcfa -- )
1.54      pazsan   1013: \G resolve referencies to ghost with tcfa
                   1014:     \ is ghost resolved?, second resolve means another definition with the
                   1015:     \ same name
                   1016:     over forward? 0= IF  exists EXIT THEN
                   1017:     \ get linked-list
                   1018:     swap >r r@ >link @ swap \ ( list tcfa R: ghost )
                   1019:     \ mark ghost as resolved
                   1020:     dup r@ >link ! <res> r@ >magic !
                   1021:     \ loop through forward referencies
                   1022:     r> -rot 
                   1023:     comp-state @ >r Resolving comp-state !
                   1024:     resolve-loop 
                   1025:     r> comp-state !
                   1026: 
                   1027:     ['] noop IS resolve-warning 
1.52      jwilke   1028:   ;
1.1       anton    1029: 
                   1030: \ gexecute ghost,                                      01nov92py
                   1031: 
1.52      jwilke   1032: : is-forward   ( ghost -- )
1.54      pazsan   1033:   colonmark, 0 (refered) ; \ compile space for call
1.52      jwilke   1034: 
                   1035: : is-resolved   ( ghost -- )
                   1036:   >link @ colon, ; \ compile-call
                   1037: 
                   1038: : gexecute   ( ghost -- )
                   1039:   dup @ <fwd> = IF  is-forward  ELSE  is-resolved  THEN ;
                   1040: 
                   1041: : addr,  ( ghost -- )
                   1042:   dup @ <fwd> = IF  1 refered 0 T a, H ELSE >link @ T a, H THEN ;
                   1043: 
                   1044: \ !! : ghost,     ghost  gexecute ;
1.1       anton    1045: 
                   1046: \ .unresolved                                          11may93jaw
                   1047: 
                   1048: variable ResolveFlag
                   1049: 
                   1050: \ ?touched                                             11may93jaw
                   1051: 
1.52      jwilke   1052: : ?touched ( ghost -- flag ) dup forward? swap >link @
1.1       anton    1053:                                0 <> and ;
                   1054: 
1.53      jwilke   1055: : .forwarddefs ( ghost -- )
                   1056:        ."  appeared in:"
                   1057:        >link
                   1058:        BEGIN   @ dup
                   1059:        WHILE   cr 5 spaces
                   1060:                dup >ghost @ >ghostname type
                   1061:                ."  file " dup >file @ ?dup IF count type ELSE ." CON" THEN
                   1062:                ."  line " dup >line @ .dec
                   1063:        REPEAT 
                   1064:        drop ;
                   1065: 
1.1       anton    1066: : ?resolved  ( ghostname -- )
                   1067:   dup cell+ @ ?touched
1.53      jwilke   1068:   IF   dup 
                   1069:        cell+ cell+ count cr type ResolveFlag on 
                   1070:        cell+ @ .forwarddefs
                   1071:   ELSE         drop 
                   1072:   THEN ;
1.1       anton    1073: 
                   1074: >MINIMAL
                   1075: : .unresolved  ( -- )
                   1076:   ResolveFlag off cr ." Unresolved: "
                   1077:   Ghostnames
                   1078:   BEGIN @ dup
                   1079:   WHILE dup ?resolved
1.10      anton    1080:   REPEAT drop ResolveFlag @
                   1081:   IF
1.48      anton    1082:       -1 abort" Unresolved words!"
1.10      anton    1083:   ELSE
                   1084:       ." Nothing!"
                   1085:   THEN
                   1086:   cr ;
1.1       anton    1087: 
1.52      jwilke   1088: : .stats
                   1089:   base @ >r decimal
                   1090:   cr ." named Headers: " headers-named @ . 
                   1091:   r> base ! ;
                   1092: 
1.1       anton    1093: >CROSS
                   1094: \ Header states                                        12dec92py
                   1095: 
                   1096: : flag! ( 8b -- )   tlast @ dup >r T c@ xor r> c! H ;
                   1097: 
                   1098: VARIABLE ^imm
                   1099: 
                   1100: >TARGET
1.36      anton    1101: : immediate     40 flag!
1.18      pazsan   1102:                 ^imm @ @ dup <imm> = IF  drop  EXIT  THEN
1.1       anton    1103:                 <res> <> ABORT" CROSS: Cannot immediate a unresolved word"
                   1104:                 <imm> ^imm @ ! ;
1.36      anton    1105: : restrict      20 flag! ;
1.52      jwilke   1106: 
1.54      pazsan   1107: : isdoer       
                   1108: \G define a forth word as doer, this makes obviously only sence on
                   1109: \G forth processors such as the PSC1000
                   1110:                <do:> last-header-ghost @ >magic ! ;
1.1       anton    1111: >CROSS
                   1112: 
                   1113: \ ALIAS2 ansforth conform alias                          9may93jaw
                   1114: 
                   1115: : ALIAS2 create here 0 , DOES> @ execute ;
                   1116: \ usage:
1.18      pazsan   1117: \ ' <name> alias2 bla !
1.1       anton    1118: 
                   1119: \ Target Header Creation                               01nov92py
                   1120: 
1.52      jwilke   1121: >TARGET
1.1       anton    1122: : string,  ( addr count -- )
1.28      pazsan   1123:   dup T c, H bounds  ?DO  I c@ T c, H  LOOP ; 
1.52      jwilke   1124: : name,  ( "name" -- )  bl word count T string, cfalign H ;
1.1       anton    1125: : view,   ( -- ) ( dummy ) ;
1.52      jwilke   1126: >CROSS
1.1       anton    1127: 
1.25      pazsan   1128: \ Target Document Creation (goes to crossdoc.fd)       05jul95py
                   1129: 
1.55      pazsan   1130: s" ./doc/crossdoc.fd" r/w create-file throw value doc-file-id
1.25      pazsan   1131: \ contains the file-id of the documentation file
                   1132: 
1.40      pazsan   1133: : T-\G ( -- )
1.25      pazsan   1134:     source >in @ /string doc-file-id write-line throw
1.40      pazsan   1135:     postpone \ ;
1.25      pazsan   1136: 
1.39      pazsan   1137: Variable to-doc  to-doc on
1.25      pazsan   1138: 
                   1139: : cross-doc-entry  ( -- )
                   1140:     to-doc @ tlast @ 0<> and   \ not an anonymous (i.e. noname) header
                   1141:     IF
                   1142:        s" " doc-file-id write-line throw
                   1143:        s" make-doc " doc-file-id write-file throw
                   1144:        tlast @ >image count $1F and doc-file-id write-file throw
                   1145:        >in @
                   1146:        [char] ( parse 2drop
                   1147:        [char] ) parse doc-file-id write-file throw
                   1148:        s"  )" doc-file-id write-file throw
                   1149:        [char] \ parse 2drop                                    
1.40      pazsan   1150:        T-\G
1.25      pazsan   1151:        >in !
1.39      pazsan   1152:     THEN ;
1.25      pazsan   1153: 
1.28      pazsan   1154: \ Target TAGS creation
                   1155: 
1.39      pazsan   1156: s" kernel.TAGS" r/w create-file throw value tag-file-id
1.28      pazsan   1157: \ contains the file-id of the tags file
                   1158: 
                   1159: Create tag-beg 2 c,  7F c, bl c,
                   1160: Create tag-end 2 c,  bl c, 01 c,
                   1161: Create tag-bof 1 c,  0C c,
                   1162: 
                   1163: 2variable last-loadfilename 0 0 last-loadfilename 2!
                   1164:            
                   1165: : put-load-file-name ( -- )
                   1166:     loadfilename 2@ last-loadfilename 2@ d<>
                   1167:     IF
                   1168:        tag-bof count tag-file-id write-line throw
1.31      anton    1169:        sourcefilename 2dup
1.28      pazsan   1170:        tag-file-id write-file throw
                   1171:        last-loadfilename 2!
                   1172:        s" ,0" tag-file-id write-line throw
                   1173:     THEN ;
                   1174: 
                   1175: : cross-tag-entry  ( -- )
                   1176:     tlast @ 0<>        \ not an anonymous (i.e. noname) header
                   1177:     IF
                   1178:        put-load-file-name
                   1179:        source >in @ min tag-file-id write-file throw
                   1180:        tag-beg count tag-file-id write-file throw
                   1181:        tlast @ >image count $1F and tag-file-id write-file throw
                   1182:        tag-end count tag-file-id write-file throw
1.31      anton    1183:        base @ decimal sourceline# 0 <# #s #> tag-file-id write-file throw
1.28      pazsan   1184: \      >in @ 0 <# #s [char] , hold #> tag-file-id write-line throw
                   1185:        s" ,0" tag-file-id write-line throw
                   1186:        base !
                   1187:     THEN ;
                   1188: 
1.43      pazsan   1189: \ Check for words
                   1190: 
                   1191: Defer skip? ' false IS skip?
                   1192: 
                   1193: : defined? ( -- flag ) \ name
1.52      jwilke   1194:     ghost forward? 0= ;
1.43      pazsan   1195: 
                   1196: : needed? ( -- flag ) \ name
1.48      anton    1197: \G returns a false flag when
                   1198: \G a word is not defined
                   1199: \G a forward reference exists
                   1200: \G so the definition is not skipped!
                   1201:     bl word gfind
1.52      jwilke   1202:     IF dup forward?
1.48      anton    1203:        nip
                   1204:        0=
                   1205:     ELSE  drop true  THEN ;
1.43      pazsan   1206: 
1.44      pazsan   1207: : doer? ( -- flag ) \ name
                   1208:     ghost >magic @ <do:> = ;
                   1209: 
1.43      pazsan   1210: : skip-defs ( -- )
                   1211:     BEGIN  refill  WHILE  source -trailing nip 0= UNTIL  THEN ;
                   1212: 
1.28      pazsan   1213: \ Target header creation
                   1214: 
1.54      pazsan   1215: Variable CreateFlag
                   1216: CreateFlag off
1.52      jwilke   1217: 
1.54      pazsan   1218: Variable NoHeaderFlag
                   1219: NoHeaderFlag off
1.1       anton    1220: 
1.54      pazsan   1221: : 0.r ( n1 n2 -- ) 
                   1222:     base @ >r hex 
                   1223:     0 swap <# 0 ?DO # LOOP #> type 
                   1224:     r> base ! ;
1.52      jwilke   1225: : .sym
                   1226:   bounds 
                   1227:   DO I c@ dup
                   1228:        CASE    '/ OF drop ." \/" ENDOF
                   1229:                '\ OF drop ." \\" ENDOF
                   1230:                dup OF emit ENDOF
                   1231:        ENDCASE
1.54      pazsan   1232:     LOOP ;
1.52      jwilke   1233: 
1.43      pazsan   1234: : (Theader ( "name" -- ghost )
1.54      pazsan   1235:     \  >in @ bl word count type 2 spaces >in !
                   1236:     \ wordheaders will always be compiled to rom
                   1237:     switchrom
                   1238:     \ build header in target
                   1239:     NoHeaderFlag @
                   1240:     IF  NoHeaderFlag off
                   1241:     ELSE
                   1242:        T align H view,
1.59      pazsan   1243:        tlast @ dup 0> IF  T 1 cells - H THEN T A, H  there tlast !
1.54      pazsan   1244:        1 headers-named +!      \ Statistic
                   1245:        >in @ T name, H >in !
                   1246:     THEN
                   1247:     T cfalign here H tlastcfa !
                   1248:     \ Symbol table
                   1249: \    >in @ cr ." sym:s/CFA=" there 4 0.r ." /"  bl word count .sym ." /g" cr >in !
                   1250:     CreateFlag @
                   1251:     IF
                   1252:        >in @ alias2 swap >in !         \ create alias in target
                   1253:        >in @ ghost swap >in !
                   1254:        swap also ghosts ' previous swap !     \ tick ghost and store in alias
                   1255:        CreateFlag off
                   1256:     ELSE ghost
                   1257:     THEN
                   1258:     dup Last-Header-Ghost !
                   1259:     dup >magic ^imm !     \ a pointer for immediate
                   1260:     Already @
                   1261:     IF  dup >end tdoes !
                   1262:     ELSE 0 tdoes !
                   1263:     THEN
                   1264:     80 flag!
                   1265:     cross-doc-entry cross-tag-entry ;
1.1       anton    1266: 
                   1267: VARIABLE ;Resolve 1 cells allot
1.52      jwilke   1268: \ this is the resolver information from ":"
                   1269: \ resolving is done by ";"
1.1       anton    1270: 
1.11      pazsan   1271: : Theader  ( "name" -- ghost )
                   1272:   (THeader dup there resolve 0 ;Resolve ! ;
1.1       anton    1273: 
                   1274: >TARGET
                   1275: : Alias    ( cfa -- ) \ name
1.43      pazsan   1276:     >in @ skip? IF  2drop  EXIT  THEN  >in !
1.53      jwilke   1277:     dup 0< s" prims" T $has? H 0= and
1.43      pazsan   1278:     IF
1.53      jwilke   1279:        .sourcepos ." needs prim: " >in @ bl word count type >in ! cr
1.43      pazsan   1280:     THEN
                   1281:     (THeader over resolve T A, H 80 flag! ;
1.42      pazsan   1282: : Alias:   ( cfa -- ) \ name
1.43      pazsan   1283:     >in @ skip? IF  2drop  EXIT  THEN  >in !
1.53      jwilke   1284:     dup 0< s" prims" T $has? H 0= and
1.43      pazsan   1285:     IF
1.53      jwilke   1286:        .sourcepos ." needs doer: " >in @ bl word count type >in ! cr
1.43      pazsan   1287:     THEN
                   1288:     ghost tuck swap resolve <do:> swap >magic ! ;
1.64      pazsan   1289: 
                   1290: Variable prim#
                   1291: : first-primitive ( n -- )  prim# ! ;
                   1292: : Primitive  ( -- ) \ name
                   1293:     prim# @ T Alias H  -1 prim# +! ;
1.1       anton    1294: >CROSS
                   1295: 
                   1296: \ Conditionals and Comments                            11may93jaw
                   1297: 
                   1298: : ;Cond
                   1299:   postpone ;
                   1300:   swap ! ;  immediate
                   1301: 
                   1302: : Cond: ( -- ) \ name {code } ;
                   1303:   atonce on
                   1304:   ghost
                   1305:   >exec
                   1306:   :NONAME ;
                   1307: 
                   1308: : restrict? ( -- )
                   1309: \ aborts on interprete state - ae
                   1310:   state @ 0= ABORT" CROSS: Restricted" ;
                   1311: 
                   1312: : Comment ( -- )
                   1313:   >in @ atonce on ghost swap >in ! ' swap >exec ! ;
                   1314: 
                   1315: Comment (       Comment \
                   1316: 
                   1317: \ compile                                              10may93jaw
                   1318: 
                   1319: : compile  ( -- ) \ name
                   1320:   restrict?
1.13      pazsan   1321:   bl word gfind dup 0= ABORT" CROSS: Can't compile "
1.1       anton    1322:   0> ( immediate? )
                   1323:   IF    >exec @ compile,
                   1324:   ELSE  postpone literal postpone gexecute  THEN ;
                   1325:                                         immediate
                   1326: 
1.52      jwilke   1327: : [G'] 
                   1328: \G ticks a ghost and returns its address
                   1329:   bl word gfind 0= ABORT" CROSS: Ghost don't exists"
                   1330:   state @
                   1331:   IF   postpone literal
                   1332:   THEN ; immediate
                   1333: 
                   1334: : ghost>cfa
                   1335:   dup forward? ABORT" CROSS: forward " >link @ ;
                   1336:                
                   1337: >TARGET
                   1338: 
                   1339: : '  ( -- cfa ) 
                   1340: \ returns the target-cfa of a ghost
                   1341:   bl word gfind 0= ABORT" CROSS: Ghost don't exists"
                   1342:   ghost>cfa ;
                   1343: 
                   1344: Cond: [']  T ' H alit, ;Cond
                   1345: 
                   1346: >CROSS
                   1347: 
                   1348: : [T']
                   1349: \ returns the target-cfa of a ghost, or compiles it as literal
                   1350:   postpone [G'] state @ IF postpone ghost>cfa ELSE ghost>cfa THEN ; immediate
1.42      pazsan   1351: 
1.52      jwilke   1352: \ \ threading modell                                   13dec92py
                   1353: \ modularized                                          14jun97jaw
                   1354: 
                   1355: : fillcfa   ( usedcells -- )
1.59      pazsan   1356:   T cells H xt>body swap - 0 ?DO 0 T c, tchar H +LOOP ;
1.52      jwilke   1357: 
                   1358: : (>body)   ( cfa -- pfa ) xt>body + ;         ' (>body) T IS >body H
                   1359: 
                   1360: : (doer,)   ( ghost -- ) ]comp gexecute comp[ 1 fillcfa ;   ' (doer,) IS doer,
                   1361: 
                   1362: : (docol,)  ( -- ) [G'] :docol doer, ;         ' (docol,) IS docol,
                   1363: 
                   1364: : (doprim,) ( -- )
                   1365:   there xt>body + ca>native T a, H 1 fillcfa ; ' (doprim,) IS doprim,
                   1366: 
                   1367: : (doeshandler,) ( -- ) 
                   1368:   T cfalign H compile :doesjump T 0 , H ;      ' (doeshandler,) IS doeshandler,
                   1369: 
                   1370: : (dodoes,) ( does-action-ghost -- )
                   1371:   ]comp [G'] :dodoes gexecute comp[
                   1372:   addr,
                   1373:   T here H tcell - reloff 2 fillcfa ;          ' (dodoes,) IS dodoes,
                   1374: 
                   1375: : (lit,) ( n -- )   compile lit T  ,  H ;      ' (lit,) IS lit,
                   1376: 
1.67      jwilke   1377: \ if we dont produce relocatable code alit, defaults to lit, jaw
                   1378: has? relocate
                   1379: [IF]
1.66      pazsan   1380: : (alit,) ( n -- )  compile lit T  a, H ;      ' (alit,) IS alit,
1.67      jwilke   1381: [ELSE]
                   1382: : (alit,) ( n -- )  lit, ;                     ' (alit,) IS alit,
                   1383: [THEN]
1.52      jwilke   1384: 
                   1385: : (fini,)         compile ;s ;                ' (fini,) IS fini,
1.42      pazsan   1386: 
1.43      pazsan   1387: [IFUNDEF] (code) 
                   1388: Defer (code)
                   1389: Defer (end-code)
                   1390: [THEN]
                   1391: 
1.1       anton    1392: >TARGET
1.43      pazsan   1393: : Code
1.52      jwilke   1394:   defempty?
1.48      anton    1395:   (THeader there resolve
1.53      jwilke   1396:   [ T e? prims H 0= [IF] T e? ITC H [ELSE] true [THEN] ] [IF]
1.52      jwilke   1397:   doprim, 
1.48      anton    1398:   [THEN]
                   1399:   depth (code) ;
1.43      pazsan   1400: 
                   1401: : Code:
1.52      jwilke   1402:   defempty?
1.48      anton    1403:     ghost dup there ca>native resolve  <do:> swap >magic !
1.43      pazsan   1404:     depth (code) ;
                   1405: 
                   1406: : end-code
1.52      jwilke   1407:     (end-code)
1.43      pazsan   1408:     depth ?dup IF   1- <> ABORT" CROSS: Stack changed"
                   1409:     ELSE true ABORT" CROSS: Stack empty" THEN
1.52      jwilke   1410:     ;
1.14      anton    1411: 
1.57      pazsan   1412: ( Cond ) : chars tchar * ; ( Cond )
1.1       anton    1413: 
                   1414: >CROSS
1.52      jwilke   1415: 
1.1       anton    1416: \ tLiteral                                             12dec92py
                   1417: 
                   1418: >TARGET
1.40      pazsan   1419: Cond: \G  T-\G ;Cond
                   1420: 
1.1       anton    1421: Cond:  Literal ( n -- )   restrict? lit, ;Cond
                   1422: Cond: ALiteral ( n -- )   restrict? alit, ;Cond
                   1423: 
                   1424: : Char ( "<char>" -- )  bl word char+ c@ ;
                   1425: Cond: [Char]   ( "<char>" -- )  restrict? Char  lit, ;Cond
                   1426: 
1.43      pazsan   1427: \ some special literals                                        27jan97jaw
                   1428: 
1.52      jwilke   1429: \ !! Known Bug: Special Literals and plug-ins work only correct
                   1430: \ on 16 and 32 Bit Targets and 32 Bit Hosts!
                   1431: 
1.43      pazsan   1432: Cond: MAXU
1.52      jwilke   1433:   restrict? 
                   1434:   tcell 1 cells u> 
                   1435:   IF   compile lit tcell 0 ?DO FF T c, H LOOP 
                   1436:   ELSE $ffffffff lit, THEN
                   1437:   ;Cond
1.43      pazsan   1438: 
                   1439: Cond: MINI
1.52      jwilke   1440:   restrict?
                   1441:   tcell 1 cells u>
                   1442:   IF   compile lit bigendian 
                   1443:        IF      80 T c, H tcell 1 ?DO 0 T c, H LOOP 
                   1444:        ELSE    tcell 1 ?DO 0 T c, H LOOP 80 T c, H
                   1445:        THEN
                   1446:   ELSE tcell 2 = IF $8000 ELSE $80000000 THEN lit, THEN
                   1447:   ;Cond
1.43      pazsan   1448:  
                   1449: Cond: MAXI
1.52      jwilke   1450:  restrict?
                   1451:  tcell 1 cells u>
                   1452:  IF    compile lit bigendian 
                   1453:        IF      7F T c, H tcell 1 ?DO FF T c, H LOOP
                   1454:        ELSE    tcell 1 ?DO FF T c, H LOOP 7F T c, H
                   1455:        THEN
                   1456:  ELSE  tcell 2 = IF $7fff ELSE $7fffffff THEN lit, THEN
1.43      pazsan   1457:  ;Cond
                   1458: 
1.1       anton    1459: >CROSS
                   1460: \ Target compiling loop                                12dec92py
                   1461: \ ">tib trick thrown out                               10may93jaw
                   1462: \ number? defined at the top                           11may93jaw
                   1463: 
                   1464: \ compiled word might leave items on stack!
                   1465: : tcom ( in name -- )
                   1466:   gfind  ?dup  IF    0> IF    nip >exec @ execute
                   1467:                         ELSE  nip gexecute  THEN EXIT THEN
                   1468:   number? dup  IF    0> IF swap lit,  THEN  lit,  drop
                   1469:                ELSE  2drop >in !
                   1470:                ghost gexecute THEN  ;
                   1471: 
                   1472: >TARGET
                   1473: \ : ; DOES>                                            13dec92py
                   1474: \ ]                                                     9may93py/jaw
                   1475: 
                   1476: : ] state on
1.54      pazsan   1477:     Compiling comp-state !
1.1       anton    1478:     BEGIN
1.13      pazsan   1479:         BEGIN >in @ bl word
1.1       anton    1480:               dup c@ 0= WHILE 2drop refill 0=
                   1481:               ABORT" CROSS: End of file while target compiling"
                   1482:         REPEAT
                   1483:         tcom
                   1484:         state @
                   1485:         0=
                   1486:     UNTIL ;
                   1487: 
                   1488: \ by the way: defining a second interpreter (a compiler-)loop
                   1489: \             is not allowed if a system should be ans conform
                   1490: 
                   1491: : : ( -- colon-sys ) \ Name
1.52      jwilke   1492:   defempty?
                   1493:   constflag off \ don't let this flag work over colon defs
                   1494:                \ just to go sure nothing unwanted happens
1.43      pazsan   1495:   >in @ skip? IF  drop skip-defs  EXIT  THEN  >in !
1.1       anton    1496:   (THeader ;Resolve ! there ;Resolve cell+ !
1.52      jwilke   1497:   docol, ]comp depth T ] H ;
1.1       anton    1498: 
1.37      pazsan   1499: : :noname ( -- colon-sys )
1.52      jwilke   1500:   T cfalign H there docol, 0 ;Resolve ! depth T ] H ;
1.37      pazsan   1501: 
1.2       pazsan   1502: Cond: EXIT ( -- )  restrict?  compile ;S  ;Cond
1.6       anton    1503: 
                   1504: Cond: ?EXIT ( -- ) 1 abort" CROSS: using ?exit" ;Cond
1.2       pazsan   1505: 
1.52      jwilke   1506: >CROSS
                   1507: : LastXT ;Resolve @ 0= abort" CROSS: no definition for LastXT"
                   1508:          ;Resolve cell+ @ ;
                   1509: 
                   1510: >TARGET
                   1511: 
                   1512: Cond: recurse ( -- ) Last-Ghost @ gexecute ;Cond
                   1513: 
1.1       anton    1514: Cond: ; ( -- ) restrict?
                   1515:                depth ?dup IF   1- <> ABORT" CROSS: Stack changed"
                   1516:                           ELSE true ABORT" CROSS: Stack empty" THEN
1.52      jwilke   1517:                fini,
                   1518:                comp[
                   1519:                state off
1.1       anton    1520:                ;Resolve @
                   1521:                IF ;Resolve @ ;Resolve cell+ @ resolve THEN
1.54      pazsan   1522:                Interpreting comp-state !
1.1       anton    1523:                ;Cond
1.54      pazsan   1524: Cond: [  restrict? state off Interpreting comp-state ! ;Cond
1.1       anton    1525: 
                   1526: >CROSS
1.54      pazsan   1527: 
                   1528: Create GhostDummy ghostheader
                   1529: <res> GhostDummy >magic !
                   1530: 
1.52      jwilke   1531: : !does ( does-action -- )
                   1532: \ !! zusammenziehen und dodoes, machen!
1.54      pazsan   1533:     tlastcfa @ [G'] :dovar killref
                   1534: \    tlastcfa @ dup there >r tdp ! compile :dodoes r> tdp ! T cell+ ! H ;
1.52      jwilke   1535: \ !! geht so nicht, da dodoes, ghost will!
1.54      pazsan   1536:     GhostDummy >link ! GhostDummy 
                   1537:     tlastcfa @ >tempdp dodoes, tempdp> ;
1.1       anton    1538: 
                   1539: >TARGET
                   1540: Cond: DOES> restrict?
1.52      jwilke   1541:         compile (does>) doeshandler, 
                   1542:        \ resolve words made by builders
                   1543:        tdoes @ ?dup IF  @ T here H resolve THEN
1.1       anton    1544:         ;Cond
1.52      jwilke   1545: : DOES> switchrom doeshandler, T here H !does depth T ] H ;
1.1       anton    1546: 
                   1547: >CROSS
                   1548: \ Creation                                             01nov92py
                   1549: 
                   1550: \ Builder                                               11may93jaw
                   1551: 
1.52      jwilke   1552: : Builder    ( Create-xt do:-xt "name" -- )
                   1553: \ builds up a builder in current vocabulary
                   1554: \ create-xt is executed when word is interpreted
                   1555: \ do:-xt is executet when the created word from builder is executed
                   1556: \ for do:-xt an additional entry after the normal ghost-enrys is used
                   1557: 
1.1       anton    1558:   >in @ alias2 swap dup >in ! >r >r
1.54      pazsan   1559:   Make-Ghost 
                   1560:   rot swap >exec dup @ ['] NoExec <>
                   1561:   IF 2drop ELSE ! THEN
                   1562:   ,
1.1       anton    1563:   r> r> >in !
1.11      pazsan   1564:   also ghosts ' previous swap ! ;
                   1565: \  DOES>  dup >exec @ execute ;
1.1       anton    1566: 
1.52      jwilke   1567: : gdoes,  ( ghost -- )
                   1568: \ makes the codefield for a word that is built
                   1569:   >end @ dup forward? 0=
                   1570:   IF
1.42      pazsan   1571:        dup >magic @ <do:> =
1.54      pazsan   1572:        IF       doer, 
                   1573:        ELSE    dodoes,
                   1574:        THEN
                   1575:        EXIT
1.52      jwilke   1576:   THEN
                   1577: \  compile :dodoes gexecute
                   1578: \  T here H tcell - reloff 
1.54      pazsan   1579:   2 refered 
                   1580:   0 fillcfa
                   1581:   ;
1.1       anton    1582: 
1.52      jwilke   1583: : TCreate ( <name> -- )
                   1584:   executed-ghost @
1.1       anton    1585:   CreateFlag on
1.52      jwilke   1586:   create-forward-warn
                   1587:   IF ['] reswarn-forward IS resolve-warning THEN
1.11      pazsan   1588:   Theader >r dup gdoes,
1.52      jwilke   1589: \ stores execution symantic in the built word
                   1590:   >end @ >exec @ r> >exec ! ;
                   1591: 
                   1592: : RTCreate ( <name> -- )
                   1593: \ creates a new word with code-field in ram
                   1594:   executed-ghost @
                   1595:   CreateFlag on
                   1596:   create-forward-warn
                   1597:   IF ['] reswarn-forward IS resolve-warning THEN
                   1598:   \ make Alias
                   1599:   (THeader there 0 T a, H 80 flag! ( S executed-ghost new-ghost )
                   1600:   \ store  poiter to code-field
                   1601:   switchram T cfalign H
                   1602:   there swap T ! H
                   1603:   there tlastcfa ! 
                   1604:   dup there resolve 0 ;Resolve !
                   1605:   >r dup gdoes,
1.11      pazsan   1606:   >end @ >exec @ r> >exec ! ;
1.1       anton    1607: 
                   1608: : Build:  ( -- [xt] [colon-sys] )
1.52      jwilke   1609:   :noname postpone TCreate ;
                   1610: 
                   1611: : BuildSmart:  ( -- [xt] [colon-sys] )
                   1612:   :noname
1.53      jwilke   1613:   [ T has? rom H [IF] ]
1.52      jwilke   1614:   postpone RTCreate
                   1615:   [ [ELSE] ]
                   1616:   postpone TCreate 
                   1617:   [ [THEN] ] ;
1.1       anton    1618: 
                   1619: : gdoes>  ( ghost -- addr flag )
1.52      jwilke   1620:   executed-ghost @
1.1       anton    1621:   state @ IF  gexecute true EXIT  THEN
1.52      jwilke   1622:   >link @ T >body H false ;
1.1       anton    1623: 
                   1624: \ DO: ;DO                                               11may93jaw
                   1625: \ changed to ?EXIT                                      10may93jaw
                   1626: 
                   1627: : DO:     ( -- addr [xt] [colon-sys] )
                   1628:   here ghostheader
1.11      pazsan   1629:   :noname postpone gdoes> postpone ?EXIT ;
1.1       anton    1630: 
1.42      pazsan   1631: : by:     ( -- addr [xt] [colon-sys] ) \ name
                   1632:   ghost
                   1633:   :noname postpone gdoes> postpone ?EXIT ;
                   1634: 
1.52      jwilke   1635: : ;DO ( addr [xt] [colon-sys] -- addr )
1.1       anton    1636:   postpone ;    ( S addr xt )
                   1637:   over >exec ! ; immediate
                   1638: 
                   1639: : by      ( -- addr ) \ Name
                   1640:   ghost >end @ ;
                   1641: 
                   1642: >TARGET
                   1643: \ Variables and Constants                              05dec92py
                   1644: 
1.52      jwilke   1645: Build:  ( n -- ) ;
                   1646: by: :docon ( ghost -- n ) T @ H ;DO
                   1647: Builder (Constant)
                   1648: 
                   1649: Build:  ( n -- ) T , H ;
                   1650: by (Constant)
                   1651: Builder Constant
                   1652: 
                   1653: Build:  ( n -- ) T A, H ;
                   1654: by (Constant)
                   1655: Builder AConstant
                   1656: 
                   1657: Build:  ( d -- ) T , , H ;
                   1658: DO: ( ghost -- d ) T dup cell+ @ swap @ H ;DO
                   1659: Builder 2Constant
                   1660: 
                   1661: BuildSmart: ;
1.42      pazsan   1662: by: :dovar ( ghost -- addr ) ;DO
1.1       anton    1663: Builder Create
                   1664: 
1.53      jwilke   1665: T has? rom H [IF]
1.54      pazsan   1666: Build: ( -- ) T here 0 , H switchram T align here swap ! 0 , H ( switchrom ) ;
1.52      jwilke   1667: by (Constant)
                   1668: Builder Variable
                   1669: [ELSE]
1.1       anton    1670: Build: T 0 , H ;
                   1671: by Create
                   1672: Builder Variable
1.52      jwilke   1673: [THEN]
1.1       anton    1674: 
1.53      jwilke   1675: T has? rom H [IF]
1.54      pazsan   1676: Build: ( -- ) T here 0 , H switchram T align here swap ! 0 , 0 , H ( switchrom ) ;
                   1677: by (Constant)
                   1678: Builder 2Variable
                   1679: [ELSE]
                   1680: Build: T 0 , 0 , H ;
                   1681: by Create
                   1682: Builder 2Variable
                   1683: [THEN]
                   1684: 
                   1685: T has? rom H [IF]
                   1686: Build: ( -- ) T here 0 , H switchram T align here swap ! 0 , H ( switchrom ) ;
1.52      jwilke   1687: by (Constant)
                   1688: Builder AVariable
                   1689: [ELSE]
1.1       anton    1690: Build: T 0 A, H ;
                   1691: by Create
                   1692: Builder AVariable
1.52      jwilke   1693: [THEN]
1.1       anton    1694: 
1.3       pazsan   1695: \ User variables                                       04may94py
                   1696: 
                   1697: >CROSS
                   1698: Variable tup  0 tup !
                   1699: Variable tudp 0 tudp !
                   1700: : u,  ( n -- udp )
                   1701:   tup @ tudp @ + T  ! H
1.19      pazsan   1702:   tudp @ dup T cell+ H tudp ! ;
1.3       pazsan   1703: : au, ( n -- udp )
                   1704:   tup @ tudp @ + T A! H
1.19      pazsan   1705:   tudp @ dup T cell+ H tudp ! ;
1.3       pazsan   1706: >TARGET
                   1707: 
                   1708: Build: T 0 u, , H ;
1.42      pazsan   1709: by: :douser ( ghost -- up-addr )  T @ H tup @ + ;DO
1.1       anton    1710: Builder User
                   1711: 
1.3       pazsan   1712: Build: T 0 u, , 0 u, drop H ;
                   1713: by User
1.1       anton    1714: Builder 2User
                   1715: 
1.3       pazsan   1716: Build: T 0 au, , H ;
                   1717: by User
1.1       anton    1718: Builder AUser
                   1719: 
1.52      jwilke   1720: BuildSmart: T , H ;
1.44      pazsan   1721: by (Constant)
1.1       anton    1722: Builder Value
                   1723: 
1.52      jwilke   1724: BuildSmart: T A, H ;
1.44      pazsan   1725: by (Constant)
1.32      pazsan   1726: Builder AValue
                   1727: 
1.52      jwilke   1728: BuildSmart:  ( -- ) [T'] noop T A, H ;
1.42      pazsan   1729: by: :dodefer ( ghost -- ) ABORT" CROSS: Don't execute" ;DO
1.1       anton    1730: Builder Defer
1.37      pazsan   1731: 
1.52      jwilke   1732: BuildSmart:  ( inter comp -- ) swap T immediate A, A, H ;
1.37      pazsan   1733: DO: ( ghost -- ) ABORT" CROSS: Don't execute" ;DO
1.38      anton    1734: Builder interpret/compile:
1.24      pazsan   1735: 
                   1736: \ Sturctures                                           23feb95py
                   1737: 
                   1738: >CROSS
                   1739: : nalign ( addr1 n -- addr2 )
                   1740: \ addr2 is the aligned version of addr1 wrt the alignment size n
                   1741:  1- tuck +  swap invert and ;
                   1742: >TARGET
                   1743: 
1.44      pazsan   1744: Build: ;
                   1745: by: :dofield T @ H + ;DO
                   1746: Builder (Field)
                   1747: 
1.51      anton    1748: Build: ( align1 offset1 align size "name" --  align2 offset2 )
                   1749:     rot dup T , H ( align1 align size offset1 )
                   1750:     + >r nalign r> ;
1.44      pazsan   1751: by (Field)
1.24      pazsan   1752: Builder Field
                   1753: 
1.51      anton    1754: : struct  T 1 chars 0 H ;
1.24      pazsan   1755: : end-struct  T 2Constant H ;
                   1756: 
1.52      jwilke   1757: : cell% ( n -- size align )
1.51      anton    1758:     T 1 cells H dup ;
1.24      pazsan   1759: 
                   1760: \ ' 2Constant Alias2 end-struct
                   1761: \ 0 1 T Chars H 2Constant struct
1.1       anton    1762: 
1.52      jwilke   1763: \ structural conditionals                              17dec92py
                   1764: 
                   1765: >CROSS
                   1766: : ?struc      ( flag -- )       ABORT" CROSS: unstructured " ;
                   1767: : sys?        ( sys -- sys )    dup 0= ?struc ;
                   1768: : >mark       ( -- sys )        T here  ( dup ." M" hex. ) 0 , H ;
                   1769: 
1.67      jwilke   1770: : branchoffset ( src dest -- ) - tchar / ; \ ?? jaw
1.52      jwilke   1771: 
                   1772: : >resolve    ( sys -- )        T here ( dup ." >" hex. ) over branchoffset swap ! H ;
                   1773: 
                   1774: : <resolve    ( sys -- )        T here ( dup ." <" hex. ) branchoffset , H ;
                   1775: 
1.54      pazsan   1776: :noname compile branch T here branchoffset , H ;
                   1777:   IS branch, ( target-addr -- )
                   1778: :noname compile ?branch T here branchoffset , H ;
                   1779:   IS ?branch, ( target-addr -- )
                   1780: :noname compile branch T here 0 , H ;
                   1781:   IS branchmark, ( -- branchtoken )
                   1782: :noname compile ?branch T here 0 , H ;
                   1783:   IS ?branchmark, ( -- branchtoken )
                   1784: :noname T here 0 , H ;
                   1785:   IS ?domark, ( -- branchtoken )
                   1786: :noname dup T @ H ?struc T here over branchoffset swap ! H ;
                   1787:   IS branchtoresolve, ( branchtoken -- )
                   1788: :noname branchto, T here H ;
                   1789:   IS branchtomark, ( -- target-addr )
1.52      jwilke   1790: 
                   1791: >TARGET
                   1792: 
                   1793: \ Structural Conditionals                              12dec92py
                   1794: 
                   1795: Cond: BUT       restrict? sys? swap ;Cond
                   1796: Cond: YET       restrict? sys? dup ;Cond
                   1797: 
1.54      pazsan   1798: 0 [IF]
1.52      jwilke   1799: >CROSS
                   1800: Variable tleavings
                   1801: >TARGET
                   1802: 
                   1803: Cond: DONE   ( addr -- )  restrict? tleavings @
                   1804:       BEGIN  2dup u> 0=  WHILE  dup T @ H swap >resolve REPEAT
                   1805:       tleavings ! drop ;Cond
                   1806: 
                   1807: >CROSS
1.54      pazsan   1808: : (leave)  T here H tleavings @ T , H  tleavings ! ;
1.52      jwilke   1809: >TARGET
                   1810: 
1.54      pazsan   1811: Cond: LEAVE     restrict? compile branch (leave) ;Cond
                   1812: Cond: ?LEAVE    restrict? compile 0=  compile ?branch (leave)  ;Cond
1.52      jwilke   1813: 
1.53      jwilke   1814: [ELSE]
                   1815:     \ !! This is WIP
                   1816:     \ The problem is (?DO)!
                   1817:     \ perhaps we need a plug-in for (?DO)
                   1818:     
                   1819: >CROSS
                   1820: Variable tleavings 0 tleavings !
1.54      pazsan   1821: : (done) ( addr -- )
                   1822:     tleavings @
                   1823:     BEGIN  dup
                   1824:     WHILE
                   1825:        >r dup r@ cell+ @ \ address of branch
                   1826:        u> 0=      \ lower than DO?     
                   1827:     WHILE
                   1828:        r@ 2 cells + @ \ branch token
                   1829:        branchtoresolve,
                   1830:        r@ @ r> free throw
                   1831:     REPEAT  r>  THEN
                   1832:     tleavings ! drop ;
                   1833: 
1.53      jwilke   1834: >TARGET
                   1835: 
1.54      pazsan   1836: Cond: DONE   ( addr -- )  restrict? (done) ;Cond
1.53      jwilke   1837: 
                   1838: >CROSS
1.54      pazsan   1839: : (leave) ( branchtoken -- )
1.53      jwilke   1840:     3 cells allocate throw >r
                   1841:     T here H r@ cell+ !
                   1842:     r@ 2 cells + !
                   1843:     tleavings @ r@ !
                   1844:     r> tleavings ! ;
                   1845: >TARGET
                   1846: 
1.54      pazsan   1847: Cond: LEAVE     restrict? branchmark, (leave) ;Cond
                   1848: Cond: ?LEAVE    restrict? compile 0=  ?branchmark, (leave)  ;Cond
1.53      jwilke   1849: 
                   1850: [THEN]
                   1851: 
1.54      pazsan   1852: >CROSS
                   1853: \ !!JW ToDo : Move to general tools section
                   1854: 
                   1855: : to1 ( x1 x2 xn n -- addr )
                   1856: \G packs n stack elements in a allocated memory region
                   1857:    dup dup 1+ cells allocate throw dup >r swap 1+
                   1858:    0 DO tuck ! cell+ LOOP
                   1859:    drop r> ;
                   1860: : 1to ( addr -- x1 x2 xn )
                   1861: \G unpacks the elements saved by to1
                   1862:     dup @ swap over cells + swap
                   1863:     0 DO  dup @ swap 1 cells -  LOOP
                   1864:     free throw ;
                   1865: 
                   1866: : loop]     branchto, dup <resolve tcell - (done) ;
                   1867: 
                   1868: : skiploop] ?dup IF branchto, branchtoresolve, THEN ;
                   1869: 
                   1870: >TARGET
                   1871: 
1.52      jwilke   1872: \ Structural Conditionals                              12dec92py
                   1873: 
1.53      jwilke   1874: >TARGET
1.52      jwilke   1875: Cond: AHEAD     restrict? branchmark, ;Cond
                   1876: Cond: IF        restrict? ?branchmark, ;Cond
                   1877: Cond: THEN      restrict? sys? branchto, branchtoresolve, ;Cond
                   1878: Cond: ELSE      restrict? sys? compile AHEAD swap compile THEN ;Cond
                   1879: 
                   1880: Cond: BEGIN     restrict? branchtomark, ;Cond
                   1881: Cond: WHILE     restrict? sys? compile IF swap ;Cond
                   1882: Cond: AGAIN     restrict? sys? branch, ;Cond
                   1883: Cond: UNTIL     restrict? sys? ?branch, ;Cond
                   1884: Cond: REPEAT    restrict? over 0= ?struc compile AGAIN compile THEN ;Cond
                   1885: 
                   1886: Cond: CASE      restrict? 0 ;Cond
                   1887: Cond: OF        restrict? 1+ >r compile over compile =
                   1888:                 compile IF compile drop r> ;Cond
1.45      pazsan   1889: Cond: ENDOF     restrict? >r compile ELSE r> ;Cond
                   1890: Cond: ENDCASE   restrict? compile drop 0 ?DO  compile THEN  LOOP ;Cond
1.1       anton    1891: 
                   1892: \ Structural Conditionals                              12dec92py
                   1893: 
1.67      jwilke   1894: :noname \ ?? i think 0 is too much! jaw
1.54      pazsan   1895:     0 compile (do)
                   1896:     branchtomark,  2 to1 ;
                   1897:   IS do, ( -- target-addr )
                   1898: 
                   1899: \ :noname
                   1900: \     compile 2dup compile = compile IF
                   1901: \     compile 2drop compile ELSE
                   1902: \     compile (do) branchtomark, 2 to1 ;
                   1903: \   IS ?do,
                   1904:     
                   1905: :noname
                   1906:     0 compile (?do)  ?domark, (leave)
                   1907:     branchtomark,  2 to1 ;
                   1908:   IS ?do, ( -- target-addr )
                   1909: :noname compile (for) branchtomark, ;
                   1910:   IS for, ( -- target-addr )
                   1911: :noname 1to compile (loop)  loop] compile unloop skiploop] ;
                   1912:   IS loop, ( target-addr -- )
                   1913: :noname 1to compile (+loop)  loop] compile unloop skiploop] ;
                   1914:   IS +loop, ( target-addr -- )
                   1915: :noname compile (next)  loop] compile unloop ;
                   1916:   IS next, ( target-addr -- )
                   1917: 
                   1918: Cond: DO       restrict? do, ;Cond
                   1919: Cond: ?DO      restrict? ?do, ;Cond
                   1920: Cond: FOR      restrict? for, ;Cond
                   1921: 
                   1922: Cond: LOOP     restrict? sys? loop, ;Cond
                   1923: Cond: +LOOP    restrict? sys? +loop, ;Cond
                   1924: Cond: NEXT     restrict? sys? next, ;Cond
1.52      jwilke   1925: 
1.1       anton    1926: \ String words                                         23feb93py
                   1927: 
1.52      jwilke   1928: : ,"            [char] " parse T string, align H ;
1.1       anton    1929: 
                   1930: Cond: ."        restrict? compile (.")     T ," H ;Cond
                   1931: Cond: S"        restrict? compile (S")     T ," H ;Cond
                   1932: Cond: ABORT"    restrict? compile (ABORT") T ," H ;Cond
                   1933: 
                   1934: Cond: IS        T ' >body H compile ALiteral compile ! ;Cond
1.66      pazsan   1935: : IS            T >address ' >body ! H ;
1.9       pazsan   1936: Cond: TO        T ' >body H compile ALiteral compile ! ;Cond
                   1937: : TO            T ' >body ! H ;
1.1       anton    1938: 
1.52      jwilke   1939: Cond: defers   T ' >body @ compile, H ;Cond
                   1940: : on           T -1 swap ! H ; 
                   1941: : off          T 0 swap ! H ;
                   1942: 
1.1       anton    1943: \ LINKED ERR" ENV" 2ENV"                                18may93jaw
                   1944: 
                   1945: \ linked list primitive
                   1946: : linked        T here over @ A, swap ! H ;
1.52      jwilke   1947: : chained      T linked A, H ;
1.1       anton    1948: 
                   1949: : err"   s" ErrLink linked" evaluate T , H
1.52      jwilke   1950:          [char] " parse T string, align H ;
1.1       anton    1951: 
                   1952: : env"  [char] " parse s" EnvLink linked" evaluate
1.52      jwilke   1953:         T string, align , H ;
1.1       anton    1954: 
                   1955: : 2env" [char] " parse s" EnvLink linked" evaluate
1.52      jwilke   1956:         here >r T string, align , , H
1.1       anton    1957:         r> dup T c@ H 80 and swap T c! H ;
                   1958: 
                   1959: \ compile must be last                                 22feb93py
                   1960: 
                   1961: Cond: compile ( -- ) restrict? \ name
1.13      pazsan   1962:       bl word gfind dup 0= ABORT" CROSS: Can't compile"
1.1       anton    1963:       0> IF    gexecute
                   1964:          ELSE  dup >magic @ <imm> =
                   1965:                IF   gexecute
1.54      pazsan   1966:                ELSE compile (compile) addr, THEN THEN ;Cond
1.1       anton    1967: 
                   1968: Cond: postpone ( -- ) restrict? \ name
1.13      pazsan   1969:       bl word gfind dup 0= ABORT" CROSS: Can't compile"
1.1       anton    1970:       0> IF    gexecute
                   1971:          ELSE  dup >magic @ <imm> =
                   1972:                IF   gexecute
1.54      pazsan   1973:               ELSE compile (compile) addr, THEN THEN ;Cond
                   1974:           
                   1975: \ \ minimal definitions
                   1976:           
1.1       anton    1977: >MINIMAL
                   1978: also minimal
                   1979: \ Usefull words                                        13feb93py
                   1980: 
                   1981: : KB  400 * ;
                   1982: 
1.54      pazsan   1983: \ \ [IF] [ELSE] [THEN] ...                             14sep97jaw
                   1984: 
                   1985: \ it is useful to define our own structures and not to rely
                   1986: \ on the words in the compiler
                   1987: \ The words in the compiler might be defined with vocabularies
                   1988: \ this doesn't work with our self-made compile-loop
                   1989: 
                   1990: Create parsed 20 chars allot   \ store word we parsed
                   1991: 
                   1992: : upcase
                   1993:     parsed count bounds
                   1994:     ?DO I c@ toupper I c! LOOP ;
                   1995: 
                   1996: : [ELSE]
                   1997:     1 BEGIN
                   1998:        BEGIN bl word count dup WHILE
                   1999:            comment? parsed place upcase parsed count
                   2000:            2dup s" [IF]" compare 0= >r 
                   2001:            2dup s" [IFUNDEF]" compare 0= >r
                   2002:            2dup s" [IFDEF]" compare 0= r> or r> or
                   2003:            IF   2drop 1+
                   2004:            ELSE 2dup s" [ELSE]" compare 0=
                   2005:                IF   2drop 1- dup
                   2006:                    IF 1+
                   2007:                    THEN
                   2008:                ELSE
                   2009:                    2dup s" [ENDIF]" compare 0= >r
                   2010:                    s" [THEN]" compare 0= r> or
                   2011:                    IF 1- THEN
                   2012:                THEN
                   2013:            THEN
                   2014:            ?dup 0= ?EXIT
                   2015:        REPEAT
                   2016:        2drop refill 0=
                   2017:     UNTIL drop ; immediate
                   2018:   
                   2019: : [THEN] ( -- ) ; immediate
                   2020: 
                   2021: : [ENDIF] ( -- ) ; immediate
                   2022: 
                   2023: : [IF] ( flag -- )
                   2024:     0= IF postpone [ELSE] THEN ; immediate 
                   2025: 
                   2026: Cond: [IF]      postpone [IF] ;Cond
                   2027: Cond: [THEN]    postpone [THEN] ;Cond
                   2028: Cond: [ELSE]    postpone [ELSE] ;Cond
                   2029: 
1.1       anton    2030: \ define new [IFDEF] and [IFUNDEF]                      20may93jaw
                   2031: 
1.43      pazsan   2032: : defined? defined? ;
1.44      pazsan   2033: : needed? needed? ;
                   2034: : doer? doer? ;
1.1       anton    2035: 
1.52      jwilke   2036: \ we want to use IFDEF on compiler directives (e.g. E?) in the source, too
                   2037: 
                   2038: : directive? 
                   2039:   bl word count [ ' target >wordlist ] aliteral search-wordlist 
                   2040:   dup IF nip THEN ;
                   2041: 
                   2042: : [IFDEF]  >in @ directive? swap >in !
                   2043:           0= IF defined? ELSE name 2drop true THEN
                   2044:           postpone [IF] ;
                   2045: 
1.43      pazsan   2046: : [IFUNDEF] defined? 0= postpone [IF] ;
1.1       anton    2047: 
1.54      pazsan   2048: Cond: [IFDEF]   postpone [IFDEF] ;Cond
                   2049: 
                   2050: Cond: [IFUNDEF] postpone [IFUNDEF] ;Cond
                   2051: 
1.1       anton    2052: \ C: \- \+ Conditional Compiling                         09jun93jaw
                   2053: 
1.43      pazsan   2054: : C: >in @ defined? 0=
1.1       anton    2055:      IF    >in ! T : H
                   2056:      ELSE drop
                   2057:         BEGIN bl word dup c@
                   2058:               IF   count comment? s" ;" compare 0= ?EXIT
                   2059:               ELSE refill 0= ABORT" CROSS: Out of Input while C:"
                   2060:               THEN
                   2061:         AGAIN
                   2062:      THEN ;
                   2063: 
                   2064: also minimal
                   2065: 
1.74    ! jwilke   2066: : d? d? ;
        !          2067: 
        !          2068: \G doesn't skip line when debug switch is on
        !          2069: : \D D? 0= IF postpone \ THEN ;
1.52      jwilke   2070: 
1.48      anton    2071: \G interprets the line if word is not defined
1.43      pazsan   2072: : \- defined? IF postpone \ THEN ;
1.48      anton    2073: 
                   2074: \G interprets the line if word is defined
1.43      pazsan   2075: : \+ defined? 0= IF postpone \ THEN ;
1.1       anton    2076: 
1.48      anton    2077: Cond: \- \- ;Cond
                   2078: Cond: \+ \+ ;Cond
1.52      jwilke   2079: Cond: \D \D ;Cond
1.48      anton    2080: 
                   2081: : ?? bl word find IF execute ELSE drop 0 THEN ;
                   2082: 
                   2083: : needed:
                   2084: \G defines ghost for words that we want to be compiled
                   2085:   BEGIN >in @ bl word c@ WHILE >in ! ghost drop REPEAT drop ;
                   2086: 
                   2087: previous
                   2088: 
1.1       anton    2089: \ save-cross                                           17mar93py
                   2090: 
1.48      anton    2091: >CROSS
1.62      pazsan   2092: Create magic  s" Gforth2x" here over allot swap move
1.26      pazsan   2093: 
1.63      anton    2094: bigendian 1+ \ strangely, in magic big=0, little=1
                   2095: tcell 1 = 0 and or
1.62      pazsan   2096: tcell 2 = 2 and or
                   2097: tcell 4 = 4 and or
                   2098: tcell 8 = 6 and or
1.65      pazsan   2099: tchar 1 = $00 and or
                   2100: tchar 2 = $28 and or
                   2101: tchar 4 = $50 and or
                   2102: tchar 8 = $78 and or
1.62      pazsan   2103: magic 7 + c!
1.26      pazsan   2104: 
1.34      anton    2105: : save-cross ( "image-name" "binary-name" -- )
                   2106:   bl parse ." Saving to " 2dup type cr
1.1       anton    2107:   w/o bin create-file throw >r
1.48      anton    2108:   TNIL IF
1.43      pazsan   2109:       s" #! "   r@ write-file throw
                   2110:       bl parse  r@ write-file throw
                   2111:       s"  -i"   r@ write-file throw
                   2112:       #lf       r@ emit-file throw
                   2113:       r@ dup file-position throw drop 8 mod 8 swap ( file-id limit index )
                   2114:       ?do
                   2115:          bl over emit-file throw
                   2116:       loop
                   2117:       drop
                   2118:       magic 8       r@ write-file throw \ write magic
                   2119:   ELSE
                   2120:       bl parse 2drop
                   2121:   THEN
1.52      jwilke   2122:   image @ there 
                   2123:   r@ write-file throw \ write image
1.48      anton    2124:   TNIL IF
                   2125:       bit$  @ there 1- tcell>bit rshift 1+
1.16      pazsan   2126:                 r@ write-file throw \ write tags
1.43      pazsan   2127:   THEN
1.1       anton    2128:   r> close-file throw ;
                   2129: 
1.52      jwilke   2130: : save-region ( addr len -- )
                   2131:   bl parse w/o bin create-file throw >r
1.67      jwilke   2132:   swap >image swap r@ write-file throw
1.52      jwilke   2133:   r> close-file throw ;
                   2134: 
1.1       anton    2135: \ words that should be in minimal
1.52      jwilke   2136: 
                   2137: create s-buffer 50 chars allot
                   2138: 
1.48      anton    2139: >MINIMAL
                   2140: also minimal
1.1       anton    2141: 
1.48      anton    2142: bigendian Constant bigendian
1.52      jwilke   2143: : here there ;
1.67      jwilke   2144: : equ constant ;
                   2145: : mark there constant ;
1.54      pazsan   2146: 
                   2147: \ compiler directives
1.52      jwilke   2148: : >ram >ram ;
                   2149: : >rom >rom ;
                   2150: : >auto >auto ;
                   2151: : >tempdp >tempdp ;
                   2152: : tempdp> tempdp> ;
                   2153: : const constflag on ;
                   2154: : warnings name 3 = 0= twarnings ! drop ;
1.60      anton    2155: : | ;
                   2156: \ : | NoHeaderFlag on ; \ This is broken (damages the last word)
1.52      jwilke   2157: 
1.48      anton    2158: : save-cross save-cross ;
1.52      jwilke   2159: : save-region save-region ;
                   2160: : tdump swap >image swap dump ;
                   2161: 
1.48      anton    2162: also forth 
1.52      jwilke   2163: [IFDEF] Label           : Label defempty? Label ; [THEN] 
                   2164: [IFDEF] start-macros    : start-macros defempty? start-macros ; [THEN]
                   2165: [IFDEF] builttag       : builttag builttag ;   [THEN]
1.48      anton    2166: previous
                   2167: 
1.52      jwilke   2168: : s" [char] " parse s-buffer place s-buffer count ; \ for environment?
1.43      pazsan   2169: : + + ;
1.52      jwilke   2170: : 1+ 1 + ;
                   2171: : 2+ 2 + ;
1.43      pazsan   2172: : or or ;
                   2173: : 1- 1- ;
                   2174: : - - ;
1.52      jwilke   2175: : and and ;
                   2176: : or or ;
1.43      pazsan   2177: : 2* 2* ;
                   2178: : * * ;
                   2179: : / / ;
                   2180: : dup dup ;
                   2181: : over over ;
                   2182: : swap swap ;
                   2183: : rot rot ;
                   2184: : drop drop ;
                   2185: : =   = ;
                   2186: : 0=   0= ;
                   2187: : lshift lshift ;
                   2188: : 2/ 2/ ;
1.19      pazsan   2189: : . . ;
1.1       anton    2190: 
1.43      pazsan   2191: : all-words    ['] false    IS skip? ;
                   2192: : needed-words ['] needed?  IS skip? ;
                   2193: : undef-words  ['] defined? IS skip? ;
1.1       anton    2194: 
1.40      pazsan   2195: : \  postpone \ ;  immediate
1.47      pazsan   2196: : \G T-\G ; immediate
1.40      pazsan   2197: : (  postpone ( ;  immediate
1.1       anton    2198: : include bl word count included ;
1.52      jwilke   2199: : require require ;
1.1       anton    2200: : .( [char] ) parse type ;
1.52      jwilke   2201: : ." [char] " parse type ;
1.1       anton    2202: : cr cr ;
                   2203: 
                   2204: : times 0 ?DO dup T c, H LOOP drop ; \ used for space table creation
                   2205: only forth also minimal definitions
                   2206: 
                   2207: \ cross-compiler words
                   2208: 
                   2209: : decimal       decimal ;
                   2210: : hex           hex ;
                   2211: 
1.3       pazsan   2212: : tudp          T tudp H ;
1.39      pazsan   2213: : tup           T tup H ;
                   2214: 
                   2215: : doc-off       false T to-doc H ! ;
                   2216: : doc-on        true  T to-doc H ! ;
1.52      jwilke   2217: [IFDEF] dbg : dbg dbg ; [THEN]
1.39      pazsan   2218: 
                   2219: minimal
1.1       anton    2220: 
                   2221: \ for debugging...
                   2222: : order         order ;
1.52      jwilke   2223: : hwords         words ;
                   2224: : words        also ghosts words previous ;
1.1       anton    2225: : .s            .s ;
                   2226: : bye           bye ;
                   2227: 
                   2228: \ turnkey direction
                   2229: : H forth ; immediate
                   2230: : T minimal ; immediate
                   2231: : G ghosts ; immediate
                   2232: 
                   2233: : turnkey  0 set-order also Target definitions
                   2234:            also Minimal also ;
                   2235: 
                   2236: \ these ones are pefered:
                   2237: 
                   2238: : lock   turnkey ;
1.74    ! jwilke   2239: : unlock previous forth also cross ;
1.52      jwilke   2240: 
                   2241: : [[ also unlock ;
                   2242: : ]] previous previous ;
1.1       anton    2243: 
                   2244: unlock definitions also minimal
                   2245: : lock   lock ;
                   2246: lock

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