Annotation of gforth/cross.fs, revision 1.75

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:>
1.75    ! jwilke    214: 4715 Constant <skip>
1.52      jwilke    215: 
                    216: \ iForth makes only immediate directly after create
                    217: \ make atonce trick! ?
                    218: 
                    219: Variable atonce atonce off
                    220: 
                    221: : NoExec true ABORT" CROSS: Don't execute ghost" ;
                    222: 
                    223: : GhostHeader <fwd> , 0 , ['] NoExec , ;
                    224: 
                    225: : >magic ;             \ type of ghost
                    226: : >link cell+ ;                \ pointer where ghost is in target, or if unresolved
                    227:                        \ points to the where we have to resolve (linked-list)
                    228: : >exec cell+ cell+ ;  \ execution symantics (while target compiling) of ghost
                    229: : >end 3 cells + ;     \ room for additional tags
                    230:                        \ for builder (create, variable...) words the
                    231:                        \ execution symantics of words built are placed here
                    232: 
                    233: Variable executed-ghost \ last executed ghost, needed in tcreate and gdoes>
                    234: Variable last-ghost    \ last ghost that is created
                    235: Variable last-header-ghost \ last ghost definitions with header
                    236: 
                    237: : Make-Ghost ( "name" -- ghost )
                    238:   >in @ GhostName swap >in !
                    239:   <T Create atonce @ IF immediate atonce off THEN
                    240:   here tuck swap ! ghostheader T>
                    241:   dup last-ghost !
                    242:   DOES> dup executed-ghost ! >exec @ execute ;
                    243: 
                    244: \ ghost words                                          14oct92py
                    245: \                                          changed:    10may93py/jaw
                    246: 
                    247: : gfind   ( string -- ghost true/1 / string false )
                    248: \ searches for string in word-list ghosts
                    249:   dup count [ ' ghosts >wordlist ] ALiteral search-wordlist
                    250:   dup IF >r >body nip r>  THEN ;
                    251: 
                    252: : gdiscover ( xt -- ghost true | xt false )
                    253:   GhostNames
                    254:   BEGIN @ dup
                    255:   WHILE 2dup
                    256:         cell+ @ dup >magic @ <fwd> <>
                    257:         >r >link @ = r> and
                    258:         IF cell+ @ nip true EXIT THEN
                    259:   REPEAT
                    260:   drop false ;
                    261: 
                    262: VARIABLE Already
                    263: 
                    264: : ghost   ( "name" -- ghost )
                    265:   Already off
                    266:   >in @  bl word gfind   IF  Already on nip EXIT  THEN
                    267:   drop  >in !  Make-Ghost ;
                    268: 
                    269: : >ghostname ( ghost -- adr len )
                    270:   GhostNames
                    271:   BEGIN @ dup
                    272:   WHILE 2dup cell+ @ =
                    273:   UNTIL nip 2 cells + count
1.54      pazsan    274:   ELSE  2drop 
                    275:        \ true abort" CROSS: Ghostnames inconsistent"
                    276:        s" ?!?!?!"
1.52      jwilke    277:   THEN ;
                    278: 
                    279: ' >ghostname ALIAS @name
                    280: 
                    281: : forward? ( ghost -- flag )
                    282:   >magic @ <fwd> = ;
                    283: 
1.75    ! jwilke    284: : undefined? ( ghost -- flag )
        !           285:   >magic @ dup <fwd> = swap <skip> = or ;
        !           286: 
1.52      jwilke    287: \ Predefined ghosts                                    12dec92py
                    288: 
                    289: ghost 0=                                        drop
                    290: ghost branch    ghost ?branch                   2drop
                    291: ghost (do)      ghost (?do)                     2drop
                    292: ghost (for)                                     drop
                    293: ghost (loop)    ghost (+loop)                   2drop
                    294: ghost (next)                                    drop
                    295: ghost unloop    ghost ;S                        2drop
                    296: ghost lit       ghost (compile) ghost !         2drop drop
                    297: ghost (does>)   ghost noop                      2drop
                    298: ghost (.")      ghost (S")      ghost (ABORT")  2drop drop
                    299: ghost '                                         drop
                    300: ghost :docol    ghost :doesjump ghost :dodoes   2drop drop
1.54      pazsan    301: ghost :dovar                                   drop
1.52      jwilke    302: ghost over      ghost =         ghost drop      2drop drop
                    303: ghost - drop
1.54      pazsan    304: ghost 2drop drop
                    305: ghost 2dup drop
1.52      jwilke    306: 
                    307: \ \ Parameter for target systems                         06oct92py
                    308: 
                    309: \ we define it ans like...
                    310: wordlist Constant target-environment
                    311: 
                    312: VARIABLE env-current \ save information of current dictionary to restore with environ>
                    313: 
                    314: : >ENVIRON get-current env-current ! target-environment set-current ;
                    315: : ENVIRON> env-current @ set-current ; 
1.43      pazsan    316: 
1.48      anton     317: >TARGET
1.43      pazsan    318: 
1.67      jwilke    319: : environment? ( adr len -- [ x ] true | false )
1.52      jwilke    320:   target-environment search-wordlist 
                    321:   IF execute true ELSE false THEN ;
                    322: 
1.67      jwilke    323: : e? bl word count T environment? H 0= ABORT" environment variable not defined!" ;
1.52      jwilke    324: 
1.67      jwilke    325: : has?         bl word count T environment? H 
1.53      jwilke    326:        IF      \ environment variable is present, return its value
                    327:        ELSE    \ environment variable is not present, return false
1.75    ! jwilke    328:                false \ debug true ABORT" arg" 
1.53      jwilke    329:        THEN ;
1.52      jwilke    330: 
                    331: : $has? T environment? H IF ELSE false THEN ;
1.48      anton     332: 
1.54      pazsan    333: >ENVIRON get-order get-current swap 1+ set-order
                    334: true SetValue compiler
1.53      jwilke    335: true  SetValue cross
1.54      pazsan    336: true SetValue standard-threading
                    337: >TARGET previous
1.52      jwilke    338: 
1.59      pazsan    339: 
1.52      jwilke    340: mach-file count included hex
1.43      pazsan    341: 
1.53      jwilke    342: >ENVIRON
                    343: 
1.54      pazsan    344: T has? ec H
                    345: [IF]
                    346: false DefaultValue relocate
                    347: false DefaultValue file
                    348: false DefaultValue OS
                    349: false DefaultValue prims
                    350: false DefaultValue floating
                    351: false DefaultValue glocals
                    352: false DefaultValue dcomps
                    353: false DefaultValue hash
                    354: false DefaultValue xconds
                    355: false DefaultValue header
                    356: [THEN]
                    357: 
                    358: true DefaultValue interpreter
                    359: true DefaultValue ITC
                    360: false DefaultValue rom
1.73      jwilke    361: true DefaultValue standardthreading
1.53      jwilke    362: 
1.52      jwilke    363: >TARGET
1.53      jwilke    364: s" relocate" T environment? H 
                    365: [IF]   SetValue NIL
                    366: [ELSE] >ENVIRON T NIL H SetValue relocate
                    367: [THEN]
1.43      pazsan    368: 
                    369: >CROSS
                    370: 
1.52      jwilke    371: \ \ Create additional parameters                         19jan95py
1.19      pazsan    372: 
1.71      jwilke    373: \ currently cross only works for host machines with address-unit-bits
                    374: \ eual to 8 because of s! and sc!
                    375: \ but I start to query the environment just to modularize a little bit
                    376: 
                    377: : check-address-unit-bits ( -- )       
                    378: \      s" ADDRESS-UNIT-BITS" environment?
                    379: \      IF 8 <> ELSE true THEN
                    380: \      ABORT" ADDRESS-UNIT-BITS unknown or not equal to 8!"
                    381: 
                    382: \      shit, this doesn't work because environment? is only defined for 
                    383: \      gforth.fi and not kernl???.fi
                    384:        ;
                    385: 
                    386: check-address-unit-bits
                    387: 8 Constant bits/byte   \ we define: byte is address-unit
                    388: 
                    389: 1 bits/byte lshift Constant maxbyte 
1.67      jwilke    390: \ this sets byte size for the target machine, an (probably right guess) jaw
                    391: 
1.19      pazsan    392: T
1.71      jwilke    393: NIL                    Constant TNIL
                    394: cell                   Constant tcell
                    395: cell<<                 Constant tcell<<
                    396: cell>bit               Constant tcell>bit
                    397: bits/char              Constant tbits/char
                    398: bits/char H bits/byte T /      
                    399:                        Constant tchar
                    400: float                  Constant tfloat
                    401: 1 bits/char lshift     Constant tmaxchar
                    402: [IFUNDEF] bits/byte
                    403: 8                      Constant tbits/byte
                    404: [ELSE]
                    405: bits/byte              Constant tbits/byte
                    406: [THEN]
1.19      pazsan    407: H
1.71      jwilke    408: tbits/byte bits/byte / Constant tbyte
                    409: 
1.19      pazsan    410: 
1.48      anton     411: \ Variables                                            06oct92py
                    412: 
                    413: Variable image
                    414: Variable tlast    TNIL tlast !  \ Last name field
                    415: Variable tlastcfa \ Last code field
                    416: Variable tdoes    \ Resolve does> calls
                    417: Variable bit$
1.52      jwilke    418: 
                    419: \ statistics                                           10jun97jaw
                    420: 
                    421: Variable headers-named 0 headers-named !
                    422: Variable user-vars 0 user-vars !
                    423: 
1.67      jwilke    424: : target>bitmask-size ( u1 -- u2 )
                    425:   1- tcell>bit rshift 1+ ;
                    426: 
                    427: : allocatetarget ( size --- adr )
                    428:   dup allocate ABORT" CROSS: No memory for target"
                    429:   swap over swap erase ;
1.52      jwilke    430: 
1.54      pazsan    431: \ \ memregion.fs
1.52      jwilke    432: 
                    433: 
                    434: Variable last-defined-region    \ pointer to last defined region
                    435: Variable region-link            \ linked list with all regions
                    436: Variable mirrored-link          \ linked list for mirrored regions
                    437: 0 dup mirrored-link ! region-link !
                    438: 
                    439: 
1.67      jwilke    440: : >rname 6 cells + ;
                    441: : >rbm   5 cells + ;
                    442: : >rmem  4 cells + ;
                    443: : >rlink 3 cells + ;
1.52      jwilke    444: : >rdp 2 cells + ;
                    445: : >rlen cell+ ;
                    446: : >rstart ;
                    447: 
                    448: 
                    449: : region ( addr len -- )                \G create a new region
                    450:   \ check whether predefined region exists 
                    451:   save-input bl word find >r >r restore-input throw r> r> 0= 
                    452:   IF   \ make region
                    453:        drop
                    454:        save-input create restore-input throw
                    455:        here last-defined-region !
                    456:        over ( startaddr ) , ( length ) , ( dp ) ,
1.67      jwilke    457:        region-link linked 0 , 0 , bl word count string,
1.52      jwilke    458:   ELSE \ store new parameters in region
                    459:         bl word drop
                    460:        >body >r r@ last-defined-region !
1.67      jwilke    461:        r@ >rlen ! dup r@ >rstart ! r> >rdp !
1.52      jwilke    462:   THEN ;
                    463: 
                    464: : borders ( region -- startaddr endaddr ) \G returns lower and upper region border
1.67      jwilke    465:   dup >rstart @ swap >rlen @ over + ;
1.52      jwilke    466: 
                    467: : extent  ( region -- startaddr len )   \G returns the really used area
1.67      jwilke    468:   dup >rstart @ swap >rdp @ over - ;
1.52      jwilke    469: 
                    470: : area ( region -- startaddr totallen ) \G returns the total area
1.67      jwilke    471:   dup >rstart swap >rlen @ ;
1.52      jwilke    472: 
                    473: : mirrored                              \G mark a region as mirrored
                    474:   mirrored-link
1.68      jwilke    475:   align linked last-defined-region @ , ;
1.52      jwilke    476: 
1.67      jwilke    477: : .addr ( u -- )
                    478: \G prints a 16 or 32 Bit nice hex value
1.52      jwilke    479:   base @ >r hex
                    480:   tcell 2 u>
                    481:   IF s>d <# # # # # '. hold # # # # #> type
                    482:   ELSE s>d <# # # # # # #> type
                    483:   THEN r> base ! ;
                    484: 
                    485: : .regions                      \G display region statistic
                    486: 
                    487:   \ we want to list the regions in the right order
                    488:   \ so first collect all regions on stack
                    489:   0 region-link @
                    490:   BEGIN dup WHILE dup @ REPEAT drop
                    491:   BEGIN dup
1.67      jwilke    492:   WHILE cr
                    493:         0 >rlink - >r
                    494:         r@ >rname count tuck type
1.52      jwilke    495:         12 swap - 0 max spaces space
1.67      jwilke    496:         ." Start: " r@ >rstart @ dup .addr space
                    497:         ." End: " r@ >rlen @ + .addr space
                    498:         ." DP: " r> >rdp @ .addr
1.52      jwilke    499:   REPEAT drop
1.53      jwilke    500:   s" rom" T $has? H 0= ?EXIT
1.52      jwilke    501:   cr ." Mirrored:"
                    502:   mirrored-link @
                    503:   BEGIN dup
1.67      jwilke    504:   WHILE space dup cell+ @ >rname count type @
1.52      jwilke    505:   REPEAT drop cr
                    506:   ;
                    507: 
                    508: \ -------- predefined regions
                    509: 
                    510: 0 0 region address-space
                    511: \ total memory addressed and used by the target system
                    512: 
                    513: 0 0 region dictionary
                    514: \ rom area for the compiler
                    515: 
1.53      jwilke    516: T has? rom H
1.52      jwilke    517: [IF]
                    518: 0 0 region ram-dictionary mirrored
                    519: \ ram area for the compiler
                    520: [ELSE]
                    521: ' dictionary ALIAS ram-dictionary
                    522: [THEN]
                    523: 
                    524: 0 0 region return-stack
                    525: 
                    526: 0 0 region data-stack
                    527: 
                    528: 0 0 region tib-region
                    529: 
                    530: ' dictionary ALIAS rom-dictionary
                    531: 
                    532: 
                    533: : setup-target ( -- )   \G initialize targets memory space
1.53      jwilke    534:   s" rom" T $has? H
1.52      jwilke    535:   IF  \ check for ram and rom...
1.72      jwilke    536:       \ address-space area nip 0<>
1.67      jwilke    537:       ram-dictionary area nip 0<>
                    538:       rom-dictionary area nip 0<>
1.72      jwilke    539:       and 0=
1.52      jwilke    540:       ABORT" CROSS: define address-space, rom- , ram-dictionary, with rom-support!"
                    541:   THEN
                    542:   address-space area nip
                    543:   IF
                    544:       address-space area
                    545:   ELSE
                    546:       dictionary area
                    547:   THEN
1.67      jwilke    548:   nip 0=
1.52      jwilke    549:   ABORT" CROSS: define at least address-space or dictionary!!"
1.67      jwilke    550: 
                    551:   \ allocate target for each region
                    552:   region-link
                    553:   BEGIN @ dup
                    554:   WHILE dup
                    555:         0 >rlink - >r
                    556:         r@ >rlen @
                    557:         IF      \ allocate mem
                    558:                 r@ >rlen @ dup
                    559: 
                    560:                 allocatetarget dup image !
                    561:                 r@ >rmem !
                    562: 
                    563:                 target>bitmask-size allocatetarget
1.72      jwilke    564:                 dup bit$ !
1.67      jwilke    565:                 r> >rbm !
                    566: 
                    567:         ELSE    r> drop THEN
1.72      jwilke    568:    REPEAT drop ;
                    569: 
                    570: \ MakeKernal                                                           22feb99jaw
                    571: 
                    572: : makekernel ( targetsize -- targetsize )
                    573:   dup dictionary >rlen ! setup-target ;
                    574: 
                    575: >MINIMAL
                    576: : makekernel makekernel ;
                    577: >CROSS
1.52      jwilke    578: 
1.54      pazsan    579: \ \ switched tdp for rom support                               03jun97jaw
1.52      jwilke    580: 
                    581: \ second value is here to store some maximal value for statistics
                    582: \ tempdp is also embedded here but has nothing to do with rom support
                    583: \ (needs switched dp)
                    584: 
                    585: variable tempdp        0 ,     \ temporary dp for resolving
                    586: variable tempdp-save
                    587: 
                    588: 0 [IF]
                    589: variable romdp 0 ,      \ Dictionary-Pointer for ramarea
                    590: variable ramdp 0 ,      \ Dictionary-Pointer for romarea
                    591: 
                    592: \
                    593: variable sramdp                \ start of ram-area for forth
                    594: variable sromdp                \ start of rom-area for forth
                    595: 
                    596: [THEN]
                    597: 
                    598: 
                    599: 0 value tdp
                    600: variable fixed         \ flag: true: no automatic switching
                    601:                        \       false: switching is done automatically
                    602: 
                    603: \ Switch-Policy:
                    604: \
                    605: \ a header is always compiled into rom
                    606: \ after a created word (create and variable) compilation goes to ram
                    607: \
                    608: \ Be careful: If you want to make the data behind create into rom
                    609: \ you have to put >rom before create!
                    610: 
                    611: variable constflag constflag off
                    612: 
1.67      jwilke    613: : activate ( region -- )
                    614: \G next code goes to this region
                    615:   >rdp to tdp ;
                    616: 
1.52      jwilke    617: : (switchram)
1.53      jwilke    618:   fixed @ ?EXIT s" rom" T $has? H 0= ?EXIT
1.67      jwilke    619:   ram-dictionary activate ;
1.52      jwilke    620: 
                    621: : switchram
                    622:   constflag @
                    623:   IF constflag off ELSE (switchram) THEN ;
                    624: 
                    625: : switchrom
1.67      jwilke    626:   fixed @ ?EXIT rom-dictionary activate ;
1.52      jwilke    627: 
                    628: : >tempdp ( addr -- ) 
                    629:   tdp tempdp-save ! tempdp to tdp tdp ! ;
                    630: : tempdp> ( -- )
                    631:   tempdp-save @ to tdp ;
                    632: 
                    633: : >ram  fixed off (switchram) fixed on ;
                    634: : >rom  fixed off switchrom fixed on ;
                    635: : >auto fixed off switchrom ;
                    636: 
                    637: 
                    638: 
                    639: \ : romstart dup sromdp ! romdp ! ;
                    640: \ : ramstart dup sramdp ! ramdp ! ;
                    641: 
1.67      jwilke    642: \ default compilation goes to rom
1.52      jwilke    643: \ when romable support is off, only the rom switch is used (!!)
                    644: >auto
                    645: 
1.48      anton     646: : there  tdp @ ;
                    647: 
1.52      jwilke    648: >TARGET
1.48      anton     649: 
1.52      jwilke    650: \ \ Target Memory Handling
1.1       anton     651: 
                    652: \ Byte ordering and cell size                          06oct92py
                    653: 
1.19      pazsan    654: : cell+         tcell + ;
                    655: : cells         tcell<< lshift ;
1.71      jwilke    656: : chars         tchar * ;
                    657: : char+                tchar + ;
1.19      pazsan    658: : floats       tfloat * ;
1.6       anton     659:     
1.1       anton     660: >CROSS
1.19      pazsan    661: : cell/         tcell<< rshift ;
1.1       anton     662: >TARGET
                    663: 20 CONSTANT bl
1.52      jwilke    664: \ TNIL Constant NIL
1.1       anton     665: 
                    666: >CROSS
                    667: 
1.20      pazsan    668: bigendian
                    669: [IF]
1.52      jwilke    670:    : S!  ( n addr -- )  >r s>d r> tcell bounds swap 1-
1.20      pazsan    671:      DO  maxbyte ud/mod rot I c!  -1 +LOOP  2drop ;
1.52      jwilke    672:    : S@  ( addr -- n )  >r 0 0 r> tcell bounds
1.20      pazsan    673:      DO  maxbyte * swap maxbyte um* rot + swap I c@ + swap  LOOP d>s ;
1.57      pazsan    674:    : Sc!  ( n addr -- )  >r s>d r> tchar bounds swap 1-
                    675:      DO  maxbyte ud/mod rot I c!  -1 +LOOP  2drop ;
                    676:    : Sc@  ( addr -- n )  >r 0 0 r> tchar bounds
                    677:      DO  maxbyte * swap maxbyte um* rot + swap I c@ + swap  LOOP d>s ;
1.19      pazsan    678: [ELSE]
1.52      jwilke    679:    : S!  ( n addr -- )  >r s>d r> tcell bounds
1.20      pazsan    680:      DO  maxbyte ud/mod rot I c!  LOOP  2drop ;
1.52      jwilke    681:    : S@  ( addr -- n )  >r 0 0 r> tcell bounds swap 1-
1.20      pazsan    682:      DO  maxbyte * swap maxbyte um* rot + swap I c@ + swap  -1 +LOOP d>s ;
1.57      pazsan    683:    : Sc!  ( n addr -- )  >r s>d r> tchar bounds
                    684:      DO  maxbyte ud/mod rot I c!  LOOP  2drop ;
                    685:    : Sc@  ( addr -- n )  >r 0 0 r> tchar bounds swap 1-
                    686:      DO  maxbyte * swap maxbyte um* rot + swap I c@ + swap  -1 +LOOP d>s ;
1.1       anton     687: [THEN]
                    688: 
1.67      jwilke    689: : taddr>region ( taddr -- region | 0 )
                    690: \G finds for a target-address the correct region
                    691: \G returns 0 if taddr is not in range of a target memory region
                    692:   region-link
                    693:   BEGIN @ dup
                    694:   WHILE dup >r
                    695:         0 >rlink - >r
                    696:         r@ >rlen @
                    697:         IF      dup r@ borders within
                    698:                 IF r> r> drop nip EXIT THEN
                    699:         THEN
                    700:         r> drop
                    701:         r>
                    702:   REPEAT
                    703:   2drop 0 ;
                    704: 
                    705: : (>regionimage) ( taddr -- 'taddr )
                    706:   dup
                    707:   \ find region we want to address
                    708:   taddr>region dup 0= ABORT" Address out of range!"
                    709:   >r
                    710:   \ calculate offset in region
                    711:   r@ >rstart @ -
                    712:   \ add regions real address in our memory
                    713:   r> >rmem @ + ;
                    714: 
1.1       anton     715: \ Bit string manipulation                               06oct92py
                    716: \                                                       9may93jaw
                    717: CREATE Bittable 80 c, 40 c, 20 c, 10 c, 8 c, 4 c, 2 c, 1 c,
                    718: : bits ( n -- n ) chars Bittable + c@ ;
                    719: 
                    720: : >bit ( addr n -- c-addr mask ) 8 /mod rot + swap bits ;
                    721: : +bit ( addr n -- )  >bit over c@ or swap c! ;
1.4       pazsan    722: : -bit ( addr n -- )  >bit invert over c@ and swap c! ;
1.67      jwilke    723: 
                    724: : (relon) ( taddr -- )  bit$ @ swap cell/ +bit ;
                    725: : (reloff) ( taddr -- ) bit$ @ swap cell/ -bit ;
                    726: 
                    727: : (>image) ( taddr -- absaddr ) image @ + ;
                    728: 
                    729: DEFER >image
                    730: DEFER relon
                    731: DEFER reloff
                    732: DEFER correcter
                    733: 
                    734: T has? relocate H
                    735: [IF]
                    736: ' (relon) IS relon
                    737: ' (reloff) IS reloff
                    738: ' (>image) IS >image
                    739: [ELSE]
                    740: ' drop IS relon
                    741: ' drop IS reloff
1.68      jwilke    742: ' (>regionimage) IS >image
1.67      jwilke    743: [THEN]
1.1       anton     744: 
                    745: \ Target memory access                                 06oct92py
                    746: 
                    747: : align+  ( taddr -- rest )
1.48      anton     748:     tcell tuck 1- and - [ tcell 1- ] Literal and ;
1.22      anton     749: : cfalign+  ( taddr -- rest )
1.39      pazsan    750:     \ see kernel.fs:cfaligned
1.43      pazsan    751:     /maxalign tuck 1- and - [ /maxalign 1- ] Literal and ;
1.1       anton     752: 
                    753: >TARGET
                    754: : aligned ( taddr -- ta-addr )  dup align+ + ;
                    755: \ assumes cell alignment granularity (as GNU C)
                    756: 
1.22      anton     757: : cfaligned ( taddr1 -- taddr2 )
1.39      pazsan    758:     \ see kernel.fs
1.22      anton     759:     dup cfalign+ + ;
                    760: 
1.52      jwilke    761: : @  ( taddr -- w )     >image S@ ;
                    762: : !  ( w taddr -- )     >image S! ;
1.57      pazsan    763: : c@ ( taddr -- char )  >image Sc@ ;
                    764: : c! ( char taddr -- )  >image Sc! ;
1.7       anton     765: : 2@ ( taddr -- x1 x2 ) T dup cell+ @ swap @ H ;
                    766: : 2! ( x1 x2 taddr -- ) T swap over ! cell+ ! H ;
1.1       anton     767: 
                    768: \ Target compilation primitives                        06oct92py
                    769: \ included A!                                          16may93jaw
                    770: 
                    771: : here  ( -- there )    there ;
                    772: : allot ( n -- )        tdp +! ;
1.52      jwilke    773: : ,     ( w -- )        T here H tcell T allot  ! H T here drop H ;
1.57      pazsan    774: : c,    ( char -- )     T here    tchar allot c! H ;
1.67      jwilke    775: : align ( -- )          T here H align+ 0 ?DO  bl T c, tchar H +LOOP ;
1.22      anton     776: : cfalign ( -- )
1.59      pazsan    777:     T here H cfalign+ 0 ?DO  bl T c, tchar H +LOOP ;
1.1       anton     778: 
1.71      jwilke    779: : >address             dup 0>= IF tbyte / THEN ; \ ?? jaw 
1.59      pazsan    780: : A!                    swap >address swap dup relon T ! H ;
                    781: : A,    ( w -- )        >address T here H relon T , H ;
1.1       anton     782: 
                    783: >CROSS
                    784: 
1.52      jwilke    785: : tcmove ( source dest len -- )
                    786: \G cmove in target memory
1.57      pazsan    787:   tchar * bounds
1.52      jwilke    788:   ?DO  dup T c@ H I T c! H 1+
1.57      pazsan    789:   tchar +LOOP  drop ;
1.1       anton     790: 
1.67      jwilke    791: \ \ Load Assembler
                    792: 
1.1       anton     793: >TARGET
1.74      jwilke    794: H also Forth definitions
1.1       anton     795: 
1.52      jwilke    796: : X    also target bl word find
                    797:        IF      state @ IF compile,
                    798:                ELSE execute THEN
                    799:        ELSE    previous ABORT" Cross: access method not supported!"
                    800:        THEN 
                    801:        previous ; immediate
1.1       anton     802: 
1.52      jwilke    803: [IFDEF] asm-include asm-include [THEN] hex
1.1       anton     804: 
1.52      jwilke    805: previous
                    806: >CROSS H
1.1       anton     807: 
1.52      jwilke    808: \ \ --------------------        Compiler Plug Ins               01aug97jaw
1.1       anton     809: 
1.54      pazsan    810: \  Compiler States
                    811: 
                    812: Variable comp-state
                    813: 0 Constant interpreting
                    814: 1 Constant compiling
                    815: 2 Constant resolving
                    816: 3 Constant assembling
                    817: 
1.52      jwilke    818: Defer lit, ( n -- )
                    819: Defer alit, ( n -- )
1.54      pazsan    820: 
                    821: Defer branch, ( target-addr -- )       \ compiles a branch
                    822: Defer ?branch, ( target-addr -- )      \ compiles a ?branch
                    823: Defer branchmark, ( -- branch-addr )   \ reserves room for a branch
                    824: Defer ?branchmark, ( -- branch-addr )  \ reserves room for a ?branch
                    825: Defer ?domark, ( -- branch-addr )      \ reserves room for a ?do branch
                    826: Defer branchto, ( -- )                 \ actual program position is target of a branch (do e.g. alignment)
                    827: Defer branchtoresolve, ( branch-addr -- ) \ resolves a forward reference from branchmark
                    828: Defer branchfrom, ( -- )               \ ?!
                    829: Defer branchtomark, ( -- target-addr ) \ marks a branch destination
                    830: 
1.52      jwilke    831: Defer colon, ( tcfa -- )               \ compiles call to tcfa at current position
1.54      pazsan    832: Defer colonmark, ( -- addr )           \ marks a colon call
1.52      jwilke    833: Defer colon-resolve ( tcfa addr -- )
1.54      pazsan    834: 
1.52      jwilke    835: Defer addr-resolve ( target-addr addr -- )
1.54      pazsan    836: Defer doer-resolve ( ghost res-pnt target-addr addr -- ghost res-pnt )
                    837: 
                    838: Defer do,      ( -- do-token )
                    839: Defer ?do,     ( -- ?do-token )
                    840: Defer for,     ( -- for-token )
                    841: Defer loop,    ( do-token / ?do-token -- )
                    842: Defer +loop,   ( do-token / ?do-token -- )
                    843: Defer next,    ( for-token )
1.1       anton     844: 
1.52      jwilke    845: [IFUNDEF] ca>native
                    846: defer ca>native        
                    847: [THEN]
1.1       anton     848: 
1.52      jwilke    849: >TARGET
                    850: DEFER >body             \ we need the system >body
                    851:                        \ and the target >body
                    852: >CROSS
                    853: T 2 cells H VALUE xt>body
1.54      pazsan    854: DEFER doprim,  \ compiles start of a primitive
                    855: DEFER docol,           \ compiles start of a colon definition
1.52      jwilke    856: DEFER doer,            
                    857: DEFER fini,      \ compiles end of definition ;s
                    858: DEFER doeshandler,
                    859: DEFER dodoes,
                    860: 
                    861: DEFER ]comp     \ starts compilation
                    862: DEFER comp[     \ ends compilation
                    863: 
1.54      pazsan    864: : (cc) T a, H ;                                        ' (cc) IS colon,
                    865: 
                    866: : (cr) >tempdp ]comp colon, comp[ tempdp> ;    ' (cr) IS colon-resolve
                    867: : (ar) T ! H ;                                 ' (ar) IS addr-resolve
                    868: : (dr)  ( ghost res-pnt target-addr addr )
                    869:        >tempdp drop over 
                    870:        dup >magic @ <do:> =
                    871:        IF      doer,
                    872:        ELSE    dodoes,
                    873:        THEN 
                    874:        tempdp> ;                               ' (dr) IS doer-resolve
                    875: 
                    876: : (cm) ( -- addr )
                    877:     T here align H
                    878:     -1 colon, ;                                        ' (cm) IS colonmark,
1.1       anton     879: 
1.52      jwilke    880: >TARGET
                    881: : compile, colon, ;
                    882: >CROSS
1.1       anton     883: 
1.53      jwilke    884: \ file loading
                    885: 
1.54      pazsan    886: : >fl-id   1 cells + ;
                    887: : >fl-name 2 cells + ;
                    888: 
1.53      jwilke    889: Variable filelist 0 filelist !
1.67      jwilke    890: Create NoFile ," #load-file#"
1.54      pazsan    891: 0 Value         filemem
1.67      jwilke    892: : loadfile  FileMem ?dup IF >fl-name ELSE NoFile THEN ;
1.53      jwilke    893: 
1.54      pazsan    894: 1 [IF] \ !! JAW WIP
1.1       anton     895: 
1.53      jwilke    896: : add-included-file ( adr len -- )
1.54      pazsan    897:        dup char+ >fl-name allocate throw >r
                    898:        r@ >fl-name place
1.53      jwilke    899:        filelist @ r@ !
1.54      pazsan    900:        r> dup filelist ! to FileMem
                    901:        ;
1.53      jwilke    902: 
                    903: : included? ( c-addr u -- f )
                    904:        filelist
                    905:        BEGIN   @ dup
                    906:        WHILE   >r r@ 1 cells + count compare 0=
                    907:                IF rdrop 2drop true EXIT THEN
                    908:                r>
                    909:        REPEAT
                    910:        2drop drop false ;      
                    911: 
1.74      jwilke    912: false DebugFlag showincludedfiles
                    913: 
1.53      jwilke    914: : included 
1.74      jwilke    915:        [d?] showincludedfiles
                    916:        IF      cr ." Including: " 2dup type ." ..." THEN
1.54      pazsan    917:        FileMem >r
                    918:        2dup add-included-file included 
                    919:        r> to FileMem ;
1.53      jwilke    920: 
                    921: : include bl word count included ;
                    922: 
                    923: : require bl word count included ;
                    924: 
                    925: [THEN]
1.1       anton     926: 
1.52      jwilke    927: \ resolve structure
1.1       anton     928: 
1.52      jwilke    929: : >next ;              \ link to next field
1.54      pazsan    930: : >tag cell+ ;         \ indecates type of reference: 0: call, 1: address, 2: doer
1.53      jwilke    931: : >taddr cell+ cell+ ; 
1.52      jwilke    932: : >ghost 3 cells + ;
1.53      jwilke    933: : >file 4 cells + ;
                    934: : >line 5 cells + ;
1.48      anton     935: 
1.54      pazsan    936: : (refered) ( ghost addr tag -- )
                    937: \G creates a reference to ghost at address taddr
                    938:     rot >r here r@ >link @ , r> >link ! 
                    939:     ( taddr tag ) ,
                    940:     ( taddr ) , 
                    941:     last-header-ghost @ , 
                    942:     loadfile , 
                    943:     sourceline# , 
                    944:   ;
                    945: 
1.52      jwilke    946: : refered ( ghost tag -- )
1.53      jwilke    947: \G creates a resolve structure
1.54      pazsan    948:     T here aligned H swap (refered)
                    949:   ;
                    950: 
                    951: : killref ( addr ghost -- )
                    952: \G kills a forward reference to ghost at position addr
                    953: \G this is used to eleminate a :dovar refence after making a DOES>
                    954:     dup >magic @ <fwd> <> IF 2drop EXIT THEN
                    955:     swap >r >link
                    956:     BEGIN dup @ dup  ( addr last this )
                    957:     WHILE dup >taddr @ r@ =
                    958:         IF   @ over !
                    959:         ELSE nip THEN
                    960:     REPEAT rdrop 2drop 
1.53      jwilke    961:   ;
1.48      anton     962: 
1.52      jwilke    963: Defer resolve-warning
1.1       anton     964: 
1.52      jwilke    965: : reswarn-test ( ghost res-struct -- ghost res-struct )
                    966:   over cr ." Resolving " >ghostname type dup ."  in " >ghost @ >ghostname type ;
1.1       anton     967: 
1.52      jwilke    968: : reswarn-forward ( ghost res-struct -- ghost res-struct )
                    969:   over warnhead >ghostname type dup ."  is referenced in " 
                    970:   >ghost @ >ghostname type ;
1.1       anton     971: 
1.52      jwilke    972: \ ' reswarn-test IS resolve-warning
                    973:  
1.1       anton     974: \ resolve                                              14oct92py
                    975: 
1.54      pazsan    976:  : resolve-loop ( ghost resolve-list tcfa -- )
                    977:     >r
                    978:     BEGIN dup WHILE 
                    979: \        dup >tag @ 2 = IF reswarn-forward THEN
                    980:          resolve-warning 
                    981:          r@ over >taddr @ 
                    982:          2 pick >tag @
                    983:          CASE  0 OF colon-resolve ENDOF
                    984:                1 OF addr-resolve ENDOF
                    985:                2 OF doer-resolve ENDOF
                    986:          ENDCASE
                    987:          @ \ next list element
                    988:     REPEAT 2drop rdrop 
                    989:   ;
1.52      jwilke    990: 
                    991: \ : resolve-loop ( ghost tcfa -- ghost tcfa )
                    992: \  >r dup >link @
                    993: \  BEGIN  dup  WHILE  dup T @ H r@ rot T ! H REPEAT  drop r> ;
1.1       anton     994: 
                    995: \ exists                                                9may93jaw
                    996: 
1.52      jwilke    997: Variable TWarnings
                    998: TWarnings on
                    999: Variable Exists-Warnings
                   1000: Exists-Warnings on
                   1001: 
1.1       anton    1002: : exists ( ghost tcfa -- )
                   1003:   over GhostNames
                   1004:   BEGIN @ dup
                   1005:   WHILE 2dup cell+ @ =
                   1006:   UNTIL
1.52      jwilke   1007:         2 cells + count
                   1008:         TWarnings @ Exists-Warnings @ and
                   1009:         IF warnhead type ."  exists"
                   1010:         ELSE 2drop THEN
                   1011:         drop swap >link !
1.24      pazsan   1012:   ELSE  true abort" CROSS: Ghostnames inconsistent "
1.1       anton    1013:   THEN ;
                   1014: 
                   1015: : resolve  ( ghost tcfa -- )
1.54      pazsan   1016: \G resolve referencies to ghost with tcfa
                   1017:     \ is ghost resolved?, second resolve means another definition with the
                   1018:     \ same name
1.75    ! jwilke   1019:     over undefined? 0= IF  exists EXIT THEN
1.54      pazsan   1020:     \ get linked-list
                   1021:     swap >r r@ >link @ swap \ ( list tcfa R: ghost )
                   1022:     \ mark ghost as resolved
                   1023:     dup r@ >link ! <res> r@ >magic !
                   1024:     \ loop through forward referencies
                   1025:     r> -rot 
                   1026:     comp-state @ >r Resolving comp-state !
                   1027:     resolve-loop 
                   1028:     r> comp-state !
                   1029: 
                   1030:     ['] noop IS resolve-warning 
1.52      jwilke   1031:   ;
1.1       anton    1032: 
                   1033: \ gexecute ghost,                                      01nov92py
                   1034: 
1.52      jwilke   1035: : is-forward   ( ghost -- )
1.54      pazsan   1036:   colonmark, 0 (refered) ; \ compile space for call
1.52      jwilke   1037: 
                   1038: : is-resolved   ( ghost -- )
                   1039:   >link @ colon, ; \ compile-call
                   1040: 
                   1041: : gexecute   ( ghost -- )
                   1042:   dup @ <fwd> = IF  is-forward  ELSE  is-resolved  THEN ;
                   1043: 
                   1044: : addr,  ( ghost -- )
                   1045:   dup @ <fwd> = IF  1 refered 0 T a, H ELSE >link @ T a, H THEN ;
                   1046: 
                   1047: \ !! : ghost,     ghost  gexecute ;
1.1       anton    1048: 
                   1049: \ .unresolved                                          11may93jaw
                   1050: 
                   1051: variable ResolveFlag
                   1052: 
                   1053: \ ?touched                                             11may93jaw
                   1054: 
1.52      jwilke   1055: : ?touched ( ghost -- flag ) dup forward? swap >link @
1.1       anton    1056:                                0 <> and ;
                   1057: 
1.53      jwilke   1058: : .forwarddefs ( ghost -- )
                   1059:        ."  appeared in:"
                   1060:        >link
                   1061:        BEGIN   @ dup
                   1062:        WHILE   cr 5 spaces
                   1063:                dup >ghost @ >ghostname type
                   1064:                ."  file " dup >file @ ?dup IF count type ELSE ." CON" THEN
                   1065:                ."  line " dup >line @ .dec
                   1066:        REPEAT 
                   1067:        drop ;
                   1068: 
1.1       anton    1069: : ?resolved  ( ghostname -- )
                   1070:   dup cell+ @ ?touched
1.53      jwilke   1071:   IF   dup 
                   1072:        cell+ cell+ count cr type ResolveFlag on 
                   1073:        cell+ @ .forwarddefs
                   1074:   ELSE         drop 
                   1075:   THEN ;
1.1       anton    1076: 
                   1077: >MINIMAL
                   1078: : .unresolved  ( -- )
                   1079:   ResolveFlag off cr ." Unresolved: "
                   1080:   Ghostnames
                   1081:   BEGIN @ dup
                   1082:   WHILE dup ?resolved
1.10      anton    1083:   REPEAT drop ResolveFlag @
                   1084:   IF
1.48      anton    1085:       -1 abort" Unresolved words!"
1.10      anton    1086:   ELSE
                   1087:       ." Nothing!"
                   1088:   THEN
                   1089:   cr ;
1.1       anton    1090: 
1.52      jwilke   1091: : .stats
                   1092:   base @ >r decimal
                   1093:   cr ." named Headers: " headers-named @ . 
                   1094:   r> base ! ;
                   1095: 
1.1       anton    1096: >CROSS
                   1097: \ Header states                                        12dec92py
                   1098: 
                   1099: : flag! ( 8b -- )   tlast @ dup >r T c@ xor r> c! H ;
                   1100: 
                   1101: VARIABLE ^imm
                   1102: 
                   1103: >TARGET
1.36      anton    1104: : immediate     40 flag!
1.18      pazsan   1105:                 ^imm @ @ dup <imm> = IF  drop  EXIT  THEN
1.1       anton    1106:                 <res> <> ABORT" CROSS: Cannot immediate a unresolved word"
                   1107:                 <imm> ^imm @ ! ;
1.36      anton    1108: : restrict      20 flag! ;
1.52      jwilke   1109: 
1.54      pazsan   1110: : isdoer       
                   1111: \G define a forth word as doer, this makes obviously only sence on
                   1112: \G forth processors such as the PSC1000
                   1113:                <do:> last-header-ghost @ >magic ! ;
1.1       anton    1114: >CROSS
                   1115: 
                   1116: \ ALIAS2 ansforth conform alias                          9may93jaw
                   1117: 
                   1118: : ALIAS2 create here 0 , DOES> @ execute ;
                   1119: \ usage:
1.18      pazsan   1120: \ ' <name> alias2 bla !
1.1       anton    1121: 
                   1122: \ Target Header Creation                               01nov92py
                   1123: 
1.52      jwilke   1124: >TARGET
1.1       anton    1125: : string,  ( addr count -- )
1.28      pazsan   1126:   dup T c, H bounds  ?DO  I c@ T c, H  LOOP ; 
1.52      jwilke   1127: : name,  ( "name" -- )  bl word count T string, cfalign H ;
1.1       anton    1128: : view,   ( -- ) ( dummy ) ;
1.52      jwilke   1129: >CROSS
1.1       anton    1130: 
1.25      pazsan   1131: \ Target Document Creation (goes to crossdoc.fd)       05jul95py
                   1132: 
1.55      pazsan   1133: s" ./doc/crossdoc.fd" r/w create-file throw value doc-file-id
1.25      pazsan   1134: \ contains the file-id of the documentation file
                   1135: 
1.40      pazsan   1136: : T-\G ( -- )
1.25      pazsan   1137:     source >in @ /string doc-file-id write-line throw
1.40      pazsan   1138:     postpone \ ;
1.25      pazsan   1139: 
1.39      pazsan   1140: Variable to-doc  to-doc on
1.25      pazsan   1141: 
                   1142: : cross-doc-entry  ( -- )
                   1143:     to-doc @ tlast @ 0<> and   \ not an anonymous (i.e. noname) header
                   1144:     IF
                   1145:        s" " doc-file-id write-line throw
                   1146:        s" make-doc " doc-file-id write-file throw
                   1147:        tlast @ >image count $1F and doc-file-id write-file throw
                   1148:        >in @
                   1149:        [char] ( parse 2drop
                   1150:        [char] ) parse doc-file-id write-file throw
                   1151:        s"  )" doc-file-id write-file throw
                   1152:        [char] \ parse 2drop                                    
1.40      pazsan   1153:        T-\G
1.25      pazsan   1154:        >in !
1.39      pazsan   1155:     THEN ;
1.25      pazsan   1156: 
1.28      pazsan   1157: \ Target TAGS creation
                   1158: 
1.39      pazsan   1159: s" kernel.TAGS" r/w create-file throw value tag-file-id
1.28      pazsan   1160: \ contains the file-id of the tags file
                   1161: 
                   1162: Create tag-beg 2 c,  7F c, bl c,
                   1163: Create tag-end 2 c,  bl c, 01 c,
                   1164: Create tag-bof 1 c,  0C c,
                   1165: 
                   1166: 2variable last-loadfilename 0 0 last-loadfilename 2!
                   1167:            
                   1168: : put-load-file-name ( -- )
                   1169:     loadfilename 2@ last-loadfilename 2@ d<>
                   1170:     IF
                   1171:        tag-bof count tag-file-id write-line throw
1.31      anton    1172:        sourcefilename 2dup
1.28      pazsan   1173:        tag-file-id write-file throw
                   1174:        last-loadfilename 2!
                   1175:        s" ,0" tag-file-id write-line throw
                   1176:     THEN ;
                   1177: 
                   1178: : cross-tag-entry  ( -- )
                   1179:     tlast @ 0<>        \ not an anonymous (i.e. noname) header
                   1180:     IF
                   1181:        put-load-file-name
                   1182:        source >in @ min tag-file-id write-file throw
                   1183:        tag-beg count tag-file-id write-file throw
                   1184:        tlast @ >image count $1F and tag-file-id write-file throw
                   1185:        tag-end count tag-file-id write-file throw
1.31      anton    1186:        base @ decimal sourceline# 0 <# #s #> tag-file-id write-file throw
1.28      pazsan   1187: \      >in @ 0 <# #s [char] , hold #> tag-file-id write-line throw
                   1188:        s" ,0" tag-file-id write-line throw
                   1189:        base !
                   1190:     THEN ;
                   1191: 
1.43      pazsan   1192: \ Check for words
                   1193: 
                   1194: Defer skip? ' false IS skip?
                   1195: 
1.75    ! jwilke   1196: : skipdef ( <name> -- )
        !          1197: \G skip definition of an undefined word in undef-words mode
        !          1198:     ghost dup forward?
        !          1199:     IF  >magic <skip> swap !
        !          1200:     ELSE drop THEN ;
        !          1201: 
1.43      pazsan   1202: : defined? ( -- flag ) \ name
1.75    ! jwilke   1203:     ghost undefined? 0= ;
        !          1204: 
        !          1205: : defined2? ( -- flag ) \ name
        !          1206: \G return true for anything else than forward, even for <skip>
        !          1207: \G that's what we want
1.52      jwilke   1208:     ghost forward? 0= ;
1.43      pazsan   1209: 
                   1210: : needed? ( -- flag ) \ name
1.48      anton    1211: \G returns a false flag when
                   1212: \G a word is not defined
                   1213: \G a forward reference exists
                   1214: \G so the definition is not skipped!
                   1215:     bl word gfind
1.75    ! jwilke   1216:     IF dup undefined?
1.48      anton    1217:        nip
                   1218:        0=
                   1219:     ELSE  drop true  THEN ;
1.43      pazsan   1220: 
1.44      pazsan   1221: : doer? ( -- flag ) \ name
                   1222:     ghost >magic @ <do:> = ;
                   1223: 
1.43      pazsan   1224: : skip-defs ( -- )
                   1225:     BEGIN  refill  WHILE  source -trailing nip 0= UNTIL  THEN ;
                   1226: 
1.28      pazsan   1227: \ Target header creation
                   1228: 
1.54      pazsan   1229: Variable CreateFlag
                   1230: CreateFlag off
1.52      jwilke   1231: 
1.54      pazsan   1232: Variable NoHeaderFlag
                   1233: NoHeaderFlag off
1.1       anton    1234: 
1.54      pazsan   1235: : 0.r ( n1 n2 -- ) 
                   1236:     base @ >r hex 
                   1237:     0 swap <# 0 ?DO # LOOP #> type 
                   1238:     r> base ! ;
1.52      jwilke   1239: : .sym
                   1240:   bounds 
                   1241:   DO I c@ dup
                   1242:        CASE    '/ OF drop ." \/" ENDOF
                   1243:                '\ OF drop ." \\" ENDOF
                   1244:                dup OF emit ENDOF
                   1245:        ENDCASE
1.54      pazsan   1246:     LOOP ;
1.52      jwilke   1247: 
1.43      pazsan   1248: : (Theader ( "name" -- ghost )
1.54      pazsan   1249:     \  >in @ bl word count type 2 spaces >in !
                   1250:     \ wordheaders will always be compiled to rom
                   1251:     switchrom
                   1252:     \ build header in target
                   1253:     NoHeaderFlag @
                   1254:     IF  NoHeaderFlag off
                   1255:     ELSE
                   1256:        T align H view,
1.59      pazsan   1257:        tlast @ dup 0> IF  T 1 cells - H THEN T A, H  there tlast !
1.54      pazsan   1258:        1 headers-named +!      \ Statistic
                   1259:        >in @ T name, H >in !
                   1260:     THEN
                   1261:     T cfalign here H tlastcfa !
                   1262:     \ Symbol table
                   1263: \    >in @ cr ." sym:s/CFA=" there 4 0.r ." /"  bl word count .sym ." /g" cr >in !
                   1264:     CreateFlag @
                   1265:     IF
                   1266:        >in @ alias2 swap >in !         \ create alias in target
                   1267:        >in @ ghost swap >in !
                   1268:        swap also ghosts ' previous swap !     \ tick ghost and store in alias
                   1269:        CreateFlag off
                   1270:     ELSE ghost
                   1271:     THEN
                   1272:     dup Last-Header-Ghost !
                   1273:     dup >magic ^imm !     \ a pointer for immediate
                   1274:     Already @
                   1275:     IF  dup >end tdoes !
                   1276:     ELSE 0 tdoes !
                   1277:     THEN
                   1278:     80 flag!
                   1279:     cross-doc-entry cross-tag-entry ;
1.1       anton    1280: 
                   1281: VARIABLE ;Resolve 1 cells allot
1.52      jwilke   1282: \ this is the resolver information from ":"
                   1283: \ resolving is done by ";"
1.1       anton    1284: 
1.11      pazsan   1285: : Theader  ( "name" -- ghost )
                   1286:   (THeader dup there resolve 0 ;Resolve ! ;
1.1       anton    1287: 
                   1288: >TARGET
                   1289: : Alias    ( cfa -- ) \ name
1.43      pazsan   1290:     >in @ skip? IF  2drop  EXIT  THEN  >in !
1.53      jwilke   1291:     dup 0< s" prims" T $has? H 0= and
1.43      pazsan   1292:     IF
1.53      jwilke   1293:        .sourcepos ." needs prim: " >in @ bl word count type >in ! cr
1.43      pazsan   1294:     THEN
                   1295:     (THeader over resolve T A, H 80 flag! ;
1.42      pazsan   1296: : Alias:   ( cfa -- ) \ name
1.43      pazsan   1297:     >in @ skip? IF  2drop  EXIT  THEN  >in !
1.53      jwilke   1298:     dup 0< s" prims" T $has? H 0= and
1.43      pazsan   1299:     IF
1.53      jwilke   1300:        .sourcepos ." needs doer: " >in @ bl word count type >in ! cr
1.43      pazsan   1301:     THEN
                   1302:     ghost tuck swap resolve <do:> swap >magic ! ;
1.64      pazsan   1303: 
                   1304: Variable prim#
                   1305: : first-primitive ( n -- )  prim# ! ;
                   1306: : Primitive  ( -- ) \ name
                   1307:     prim# @ T Alias H  -1 prim# +! ;
1.1       anton    1308: >CROSS
                   1309: 
                   1310: \ Conditionals and Comments                            11may93jaw
                   1311: 
                   1312: : ;Cond
                   1313:   postpone ;
                   1314:   swap ! ;  immediate
                   1315: 
                   1316: : Cond: ( -- ) \ name {code } ;
                   1317:   atonce on
                   1318:   ghost
                   1319:   >exec
                   1320:   :NONAME ;
                   1321: 
                   1322: : restrict? ( -- )
                   1323: \ aborts on interprete state - ae
                   1324:   state @ 0= ABORT" CROSS: Restricted" ;
                   1325: 
                   1326: : Comment ( -- )
                   1327:   >in @ atonce on ghost swap >in ! ' swap >exec ! ;
                   1328: 
                   1329: Comment (       Comment \
                   1330: 
                   1331: \ compile                                              10may93jaw
                   1332: 
                   1333: : compile  ( -- ) \ name
                   1334:   restrict?
1.13      pazsan   1335:   bl word gfind dup 0= ABORT" CROSS: Can't compile "
1.1       anton    1336:   0> ( immediate? )
                   1337:   IF    >exec @ compile,
                   1338:   ELSE  postpone literal postpone gexecute  THEN ;
                   1339:                                         immediate
                   1340: 
1.52      jwilke   1341: : [G'] 
                   1342: \G ticks a ghost and returns its address
                   1343:   bl word gfind 0= ABORT" CROSS: Ghost don't exists"
                   1344:   state @
                   1345:   IF   postpone literal
                   1346:   THEN ; immediate
                   1347: 
                   1348: : ghost>cfa
1.75    ! jwilke   1349:   dup undefined? ABORT" CROSS: forward " >link @ ;
1.52      jwilke   1350:                
                   1351: >TARGET
                   1352: 
                   1353: : '  ( -- cfa ) 
                   1354: \ returns the target-cfa of a ghost
                   1355:   bl word gfind 0= ABORT" CROSS: Ghost don't exists"
                   1356:   ghost>cfa ;
                   1357: 
                   1358: Cond: [']  T ' H alit, ;Cond
                   1359: 
                   1360: >CROSS
                   1361: 
                   1362: : [T']
                   1363: \ returns the target-cfa of a ghost, or compiles it as literal
                   1364:   postpone [G'] state @ IF postpone ghost>cfa ELSE ghost>cfa THEN ; immediate
1.42      pazsan   1365: 
1.52      jwilke   1366: \ \ threading modell                                   13dec92py
                   1367: \ modularized                                          14jun97jaw
                   1368: 
                   1369: : fillcfa   ( usedcells -- )
1.59      pazsan   1370:   T cells H xt>body swap - 0 ?DO 0 T c, tchar H +LOOP ;
1.52      jwilke   1371: 
                   1372: : (>body)   ( cfa -- pfa ) xt>body + ;         ' (>body) T IS >body H
                   1373: 
                   1374: : (doer,)   ( ghost -- ) ]comp gexecute comp[ 1 fillcfa ;   ' (doer,) IS doer,
                   1375: 
                   1376: : (docol,)  ( -- ) [G'] :docol doer, ;         ' (docol,) IS docol,
                   1377: 
                   1378: : (doprim,) ( -- )
                   1379:   there xt>body + ca>native T a, H 1 fillcfa ; ' (doprim,) IS doprim,
                   1380: 
                   1381: : (doeshandler,) ( -- ) 
                   1382:   T cfalign H compile :doesjump T 0 , H ;      ' (doeshandler,) IS doeshandler,
                   1383: 
                   1384: : (dodoes,) ( does-action-ghost -- )
                   1385:   ]comp [G'] :dodoes gexecute comp[
                   1386:   addr,
                   1387:   T here H tcell - reloff 2 fillcfa ;          ' (dodoes,) IS dodoes,
                   1388: 
                   1389: : (lit,) ( n -- )   compile lit T  ,  H ;      ' (lit,) IS lit,
                   1390: 
1.67      jwilke   1391: \ if we dont produce relocatable code alit, defaults to lit, jaw
                   1392: has? relocate
                   1393: [IF]
1.66      pazsan   1394: : (alit,) ( n -- )  compile lit T  a, H ;      ' (alit,) IS alit,
1.67      jwilke   1395: [ELSE]
                   1396: : (alit,) ( n -- )  lit, ;                     ' (alit,) IS alit,
                   1397: [THEN]
1.52      jwilke   1398: 
                   1399: : (fini,)         compile ;s ;                ' (fini,) IS fini,
1.42      pazsan   1400: 
1.43      pazsan   1401: [IFUNDEF] (code) 
                   1402: Defer (code)
                   1403: Defer (end-code)
                   1404: [THEN]
                   1405: 
1.1       anton    1406: >TARGET
1.43      pazsan   1407: : Code
1.52      jwilke   1408:   defempty?
1.48      anton    1409:   (THeader there resolve
1.53      jwilke   1410:   [ T e? prims H 0= [IF] T e? ITC H [ELSE] true [THEN] ] [IF]
1.52      jwilke   1411:   doprim, 
1.48      anton    1412:   [THEN]
                   1413:   depth (code) ;
1.43      pazsan   1414: 
                   1415: : Code:
1.52      jwilke   1416:   defempty?
1.48      anton    1417:     ghost dup there ca>native resolve  <do:> swap >magic !
1.43      pazsan   1418:     depth (code) ;
                   1419: 
                   1420: : end-code
1.52      jwilke   1421:     (end-code)
1.43      pazsan   1422:     depth ?dup IF   1- <> ABORT" CROSS: Stack changed"
                   1423:     ELSE true ABORT" CROSS: Stack empty" THEN
1.52      jwilke   1424:     ;
1.14      anton    1425: 
1.57      pazsan   1426: ( Cond ) : chars tchar * ; ( Cond )
1.1       anton    1427: 
                   1428: >CROSS
1.52      jwilke   1429: 
1.1       anton    1430: \ tLiteral                                             12dec92py
                   1431: 
                   1432: >TARGET
1.40      pazsan   1433: Cond: \G  T-\G ;Cond
                   1434: 
1.1       anton    1435: Cond:  Literal ( n -- )   restrict? lit, ;Cond
                   1436: Cond: ALiteral ( n -- )   restrict? alit, ;Cond
                   1437: 
                   1438: : Char ( "<char>" -- )  bl word char+ c@ ;
                   1439: Cond: [Char]   ( "<char>" -- )  restrict? Char  lit, ;Cond
                   1440: 
1.43      pazsan   1441: \ some special literals                                        27jan97jaw
                   1442: 
1.52      jwilke   1443: \ !! Known Bug: Special Literals and plug-ins work only correct
                   1444: \ on 16 and 32 Bit Targets and 32 Bit Hosts!
                   1445: 
1.43      pazsan   1446: Cond: MAXU
1.52      jwilke   1447:   restrict? 
                   1448:   tcell 1 cells u> 
                   1449:   IF   compile lit tcell 0 ?DO FF T c, H LOOP 
                   1450:   ELSE $ffffffff lit, THEN
                   1451:   ;Cond
1.43      pazsan   1452: 
                   1453: Cond: MINI
1.52      jwilke   1454:   restrict?
                   1455:   tcell 1 cells u>
                   1456:   IF   compile lit bigendian 
                   1457:        IF      80 T c, H tcell 1 ?DO 0 T c, H LOOP 
                   1458:        ELSE    tcell 1 ?DO 0 T c, H LOOP 80 T c, H
                   1459:        THEN
                   1460:   ELSE tcell 2 = IF $8000 ELSE $80000000 THEN lit, THEN
                   1461:   ;Cond
1.43      pazsan   1462:  
                   1463: Cond: MAXI
1.52      jwilke   1464:  restrict?
                   1465:  tcell 1 cells u>
                   1466:  IF    compile lit bigendian 
                   1467:        IF      7F T c, H tcell 1 ?DO FF T c, H LOOP
                   1468:        ELSE    tcell 1 ?DO FF T c, H LOOP 7F T c, H
                   1469:        THEN
                   1470:  ELSE  tcell 2 = IF $7fff ELSE $7fffffff THEN lit, THEN
1.43      pazsan   1471:  ;Cond
                   1472: 
1.1       anton    1473: >CROSS
                   1474: \ Target compiling loop                                12dec92py
                   1475: \ ">tib trick thrown out                               10may93jaw
                   1476: \ number? defined at the top                           11may93jaw
                   1477: 
                   1478: \ compiled word might leave items on stack!
                   1479: : tcom ( in name -- )
                   1480:   gfind  ?dup  IF    0> IF    nip >exec @ execute
                   1481:                         ELSE  nip gexecute  THEN EXIT THEN
                   1482:   number? dup  IF    0> IF swap lit,  THEN  lit,  drop
                   1483:                ELSE  2drop >in !
                   1484:                ghost gexecute THEN  ;
                   1485: 
                   1486: >TARGET
                   1487: \ : ; DOES>                                            13dec92py
                   1488: \ ]                                                     9may93py/jaw
                   1489: 
                   1490: : ] state on
1.54      pazsan   1491:     Compiling comp-state !
1.1       anton    1492:     BEGIN
1.13      pazsan   1493:         BEGIN >in @ bl word
1.1       anton    1494:               dup c@ 0= WHILE 2drop refill 0=
                   1495:               ABORT" CROSS: End of file while target compiling"
                   1496:         REPEAT
                   1497:         tcom
                   1498:         state @
                   1499:         0=
                   1500:     UNTIL ;
                   1501: 
                   1502: \ by the way: defining a second interpreter (a compiler-)loop
                   1503: \             is not allowed if a system should be ans conform
                   1504: 
                   1505: : : ( -- colon-sys ) \ Name
1.52      jwilke   1506:   defempty?
                   1507:   constflag off \ don't let this flag work over colon defs
                   1508:                \ just to go sure nothing unwanted happens
1.43      pazsan   1509:   >in @ skip? IF  drop skip-defs  EXIT  THEN  >in !
1.1       anton    1510:   (THeader ;Resolve ! there ;Resolve cell+ !
1.52      jwilke   1511:   docol, ]comp depth T ] H ;
1.1       anton    1512: 
1.37      pazsan   1513: : :noname ( -- colon-sys )
1.52      jwilke   1514:   T cfalign H there docol, 0 ;Resolve ! depth T ] H ;
1.37      pazsan   1515: 
1.2       pazsan   1516: Cond: EXIT ( -- )  restrict?  compile ;S  ;Cond
1.6       anton    1517: 
                   1518: Cond: ?EXIT ( -- ) 1 abort" CROSS: using ?exit" ;Cond
1.2       pazsan   1519: 
1.52      jwilke   1520: >CROSS
                   1521: : LastXT ;Resolve @ 0= abort" CROSS: no definition for LastXT"
                   1522:          ;Resolve cell+ @ ;
                   1523: 
                   1524: >TARGET
                   1525: 
                   1526: Cond: recurse ( -- ) Last-Ghost @ gexecute ;Cond
                   1527: 
1.1       anton    1528: Cond: ; ( -- ) restrict?
                   1529:                depth ?dup IF   1- <> ABORT" CROSS: Stack changed"
                   1530:                           ELSE true ABORT" CROSS: Stack empty" THEN
1.52      jwilke   1531:                fini,
                   1532:                comp[
                   1533:                state off
1.1       anton    1534:                ;Resolve @
                   1535:                IF ;Resolve @ ;Resolve cell+ @ resolve THEN
1.54      pazsan   1536:                Interpreting comp-state !
1.1       anton    1537:                ;Cond
1.54      pazsan   1538: Cond: [  restrict? state off Interpreting comp-state ! ;Cond
1.1       anton    1539: 
                   1540: >CROSS
1.54      pazsan   1541: 
                   1542: Create GhostDummy ghostheader
                   1543: <res> GhostDummy >magic !
                   1544: 
1.52      jwilke   1545: : !does ( does-action -- )
                   1546: \ !! zusammenziehen und dodoes, machen!
1.54      pazsan   1547:     tlastcfa @ [G'] :dovar killref
                   1548: \    tlastcfa @ dup there >r tdp ! compile :dodoes r> tdp ! T cell+ ! H ;
1.52      jwilke   1549: \ !! geht so nicht, da dodoes, ghost will!
1.54      pazsan   1550:     GhostDummy >link ! GhostDummy 
                   1551:     tlastcfa @ >tempdp dodoes, tempdp> ;
1.1       anton    1552: 
                   1553: >TARGET
                   1554: Cond: DOES> restrict?
1.52      jwilke   1555:         compile (does>) doeshandler, 
                   1556:        \ resolve words made by builders
                   1557:        tdoes @ ?dup IF  @ T here H resolve THEN
1.1       anton    1558:         ;Cond
1.52      jwilke   1559: : DOES> switchrom doeshandler, T here H !does depth T ] H ;
1.1       anton    1560: 
                   1561: >CROSS
                   1562: \ Creation                                             01nov92py
                   1563: 
                   1564: \ Builder                                               11may93jaw
                   1565: 
1.52      jwilke   1566: : Builder    ( Create-xt do:-xt "name" -- )
                   1567: \ builds up a builder in current vocabulary
                   1568: \ create-xt is executed when word is interpreted
                   1569: \ do:-xt is executet when the created word from builder is executed
                   1570: \ for do:-xt an additional entry after the normal ghost-enrys is used
                   1571: 
1.1       anton    1572:   >in @ alias2 swap dup >in ! >r >r
1.54      pazsan   1573:   Make-Ghost 
                   1574:   rot swap >exec dup @ ['] NoExec <>
                   1575:   IF 2drop ELSE ! THEN
                   1576:   ,
1.1       anton    1577:   r> r> >in !
1.11      pazsan   1578:   also ghosts ' previous swap ! ;
                   1579: \  DOES>  dup >exec @ execute ;
1.1       anton    1580: 
1.52      jwilke   1581: : gdoes,  ( ghost -- )
                   1582: \ makes the codefield for a word that is built
1.75    ! jwilke   1583:   >end @ dup undefined? 0=
1.52      jwilke   1584:   IF
1.42      pazsan   1585:        dup >magic @ <do:> =
1.54      pazsan   1586:        IF       doer, 
                   1587:        ELSE    dodoes,
                   1588:        THEN
                   1589:        EXIT
1.52      jwilke   1590:   THEN
                   1591: \  compile :dodoes gexecute
                   1592: \  T here H tcell - reloff 
1.54      pazsan   1593:   2 refered 
                   1594:   0 fillcfa
                   1595:   ;
1.1       anton    1596: 
1.52      jwilke   1597: : TCreate ( <name> -- )
                   1598:   executed-ghost @
1.1       anton    1599:   CreateFlag on
1.52      jwilke   1600:   create-forward-warn
                   1601:   IF ['] reswarn-forward IS resolve-warning THEN
1.11      pazsan   1602:   Theader >r dup gdoes,
1.52      jwilke   1603: \ stores execution symantic in the built word
                   1604:   >end @ >exec @ r> >exec ! ;
                   1605: 
                   1606: : RTCreate ( <name> -- )
                   1607: \ creates a new word with code-field in ram
                   1608:   executed-ghost @
                   1609:   CreateFlag on
                   1610:   create-forward-warn
                   1611:   IF ['] reswarn-forward IS resolve-warning THEN
                   1612:   \ make Alias
                   1613:   (THeader there 0 T a, H 80 flag! ( S executed-ghost new-ghost )
                   1614:   \ store  poiter to code-field
                   1615:   switchram T cfalign H
                   1616:   there swap T ! H
                   1617:   there tlastcfa ! 
                   1618:   dup there resolve 0 ;Resolve !
                   1619:   >r dup gdoes,
1.11      pazsan   1620:   >end @ >exec @ r> >exec ! ;
1.1       anton    1621: 
                   1622: : Build:  ( -- [xt] [colon-sys] )
1.52      jwilke   1623:   :noname postpone TCreate ;
                   1624: 
                   1625: : BuildSmart:  ( -- [xt] [colon-sys] )
                   1626:   :noname
1.53      jwilke   1627:   [ T has? rom H [IF] ]
1.52      jwilke   1628:   postpone RTCreate
                   1629:   [ [ELSE] ]
                   1630:   postpone TCreate 
                   1631:   [ [THEN] ] ;
1.1       anton    1632: 
                   1633: : gdoes>  ( ghost -- addr flag )
1.52      jwilke   1634:   executed-ghost @
1.1       anton    1635:   state @ IF  gexecute true EXIT  THEN
1.52      jwilke   1636:   >link @ T >body H false ;
1.1       anton    1637: 
                   1638: \ DO: ;DO                                               11may93jaw
                   1639: \ changed to ?EXIT                                      10may93jaw
                   1640: 
                   1641: : DO:     ( -- addr [xt] [colon-sys] )
                   1642:   here ghostheader
1.11      pazsan   1643:   :noname postpone gdoes> postpone ?EXIT ;
1.1       anton    1644: 
1.42      pazsan   1645: : by:     ( -- addr [xt] [colon-sys] ) \ name
                   1646:   ghost
                   1647:   :noname postpone gdoes> postpone ?EXIT ;
                   1648: 
1.52      jwilke   1649: : ;DO ( addr [xt] [colon-sys] -- addr )
1.1       anton    1650:   postpone ;    ( S addr xt )
                   1651:   over >exec ! ; immediate
                   1652: 
                   1653: : by      ( -- addr ) \ Name
                   1654:   ghost >end @ ;
                   1655: 
                   1656: >TARGET
                   1657: \ Variables and Constants                              05dec92py
                   1658: 
1.52      jwilke   1659: Build:  ( n -- ) ;
                   1660: by: :docon ( ghost -- n ) T @ H ;DO
                   1661: Builder (Constant)
                   1662: 
                   1663: Build:  ( n -- ) T , H ;
                   1664: by (Constant)
                   1665: Builder Constant
                   1666: 
                   1667: Build:  ( n -- ) T A, H ;
                   1668: by (Constant)
                   1669: Builder AConstant
                   1670: 
                   1671: Build:  ( d -- ) T , , H ;
                   1672: DO: ( ghost -- d ) T dup cell+ @ swap @ H ;DO
                   1673: Builder 2Constant
                   1674: 
                   1675: BuildSmart: ;
1.42      pazsan   1676: by: :dovar ( ghost -- addr ) ;DO
1.1       anton    1677: Builder Create
                   1678: 
1.53      jwilke   1679: T has? rom H [IF]
1.54      pazsan   1680: Build: ( -- ) T here 0 , H switchram T align here swap ! 0 , H ( switchrom ) ;
1.52      jwilke   1681: by (Constant)
                   1682: Builder Variable
                   1683: [ELSE]
1.1       anton    1684: Build: T 0 , H ;
                   1685: by Create
                   1686: Builder Variable
1.52      jwilke   1687: [THEN]
1.1       anton    1688: 
1.53      jwilke   1689: T has? rom H [IF]
1.54      pazsan   1690: Build: ( -- ) T here 0 , H switchram T align here swap ! 0 , 0 , H ( switchrom ) ;
                   1691: by (Constant)
                   1692: Builder 2Variable
                   1693: [ELSE]
                   1694: Build: T 0 , 0 , H ;
                   1695: by Create
                   1696: Builder 2Variable
                   1697: [THEN]
                   1698: 
                   1699: T has? rom H [IF]
                   1700: Build: ( -- ) T here 0 , H switchram T align here swap ! 0 , H ( switchrom ) ;
1.52      jwilke   1701: by (Constant)
                   1702: Builder AVariable
                   1703: [ELSE]
1.1       anton    1704: Build: T 0 A, H ;
                   1705: by Create
                   1706: Builder AVariable
1.52      jwilke   1707: [THEN]
1.1       anton    1708: 
1.3       pazsan   1709: \ User variables                                       04may94py
                   1710: 
                   1711: >CROSS
                   1712: Variable tup  0 tup !
                   1713: Variable tudp 0 tudp !
                   1714: : u,  ( n -- udp )
                   1715:   tup @ tudp @ + T  ! H
1.19      pazsan   1716:   tudp @ dup T cell+ H tudp ! ;
1.3       pazsan   1717: : au, ( n -- udp )
                   1718:   tup @ tudp @ + T A! H
1.19      pazsan   1719:   tudp @ dup T cell+ H tudp ! ;
1.3       pazsan   1720: >TARGET
                   1721: 
                   1722: Build: T 0 u, , H ;
1.42      pazsan   1723: by: :douser ( ghost -- up-addr )  T @ H tup @ + ;DO
1.1       anton    1724: Builder User
                   1725: 
1.3       pazsan   1726: Build: T 0 u, , 0 u, drop H ;
                   1727: by User
1.1       anton    1728: Builder 2User
                   1729: 
1.3       pazsan   1730: Build: T 0 au, , H ;
                   1731: by User
1.1       anton    1732: Builder AUser
                   1733: 
1.52      jwilke   1734: BuildSmart: T , H ;
1.44      pazsan   1735: by (Constant)
1.1       anton    1736: Builder Value
                   1737: 
1.52      jwilke   1738: BuildSmart: T A, H ;
1.44      pazsan   1739: by (Constant)
1.32      pazsan   1740: Builder AValue
                   1741: 
1.52      jwilke   1742: BuildSmart:  ( -- ) [T'] noop T A, H ;
1.42      pazsan   1743: by: :dodefer ( ghost -- ) ABORT" CROSS: Don't execute" ;DO
1.1       anton    1744: Builder Defer
1.37      pazsan   1745: 
1.52      jwilke   1746: BuildSmart:  ( inter comp -- ) swap T immediate A, A, H ;
1.37      pazsan   1747: DO: ( ghost -- ) ABORT" CROSS: Don't execute" ;DO
1.38      anton    1748: Builder interpret/compile:
1.24      pazsan   1749: 
                   1750: \ Sturctures                                           23feb95py
                   1751: 
                   1752: >CROSS
                   1753: : nalign ( addr1 n -- addr2 )
                   1754: \ addr2 is the aligned version of addr1 wrt the alignment size n
                   1755:  1- tuck +  swap invert and ;
                   1756: >TARGET
                   1757: 
1.44      pazsan   1758: Build: ;
                   1759: by: :dofield T @ H + ;DO
                   1760: Builder (Field)
                   1761: 
1.51      anton    1762: Build: ( align1 offset1 align size "name" --  align2 offset2 )
                   1763:     rot dup T , H ( align1 align size offset1 )
                   1764:     + >r nalign r> ;
1.44      pazsan   1765: by (Field)
1.24      pazsan   1766: Builder Field
                   1767: 
1.51      anton    1768: : struct  T 1 chars 0 H ;
1.24      pazsan   1769: : end-struct  T 2Constant H ;
                   1770: 
1.52      jwilke   1771: : cell% ( n -- size align )
1.51      anton    1772:     T 1 cells H dup ;
1.24      pazsan   1773: 
                   1774: \ ' 2Constant Alias2 end-struct
                   1775: \ 0 1 T Chars H 2Constant struct
1.1       anton    1776: 
1.52      jwilke   1777: \ structural conditionals                              17dec92py
                   1778: 
                   1779: >CROSS
                   1780: : ?struc      ( flag -- )       ABORT" CROSS: unstructured " ;
                   1781: : sys?        ( sys -- sys )    dup 0= ?struc ;
                   1782: : >mark       ( -- sys )        T here  ( dup ." M" hex. ) 0 , H ;
                   1783: 
1.67      jwilke   1784: : branchoffset ( src dest -- ) - tchar / ; \ ?? jaw
1.52      jwilke   1785: 
                   1786: : >resolve    ( sys -- )        T here ( dup ." >" hex. ) over branchoffset swap ! H ;
                   1787: 
                   1788: : <resolve    ( sys -- )        T here ( dup ." <" hex. ) branchoffset , H ;
                   1789: 
1.54      pazsan   1790: :noname compile branch T here branchoffset , H ;
                   1791:   IS branch, ( target-addr -- )
                   1792: :noname compile ?branch T here branchoffset , H ;
                   1793:   IS ?branch, ( target-addr -- )
                   1794: :noname compile branch T here 0 , H ;
                   1795:   IS branchmark, ( -- branchtoken )
                   1796: :noname compile ?branch T here 0 , H ;
                   1797:   IS ?branchmark, ( -- branchtoken )
                   1798: :noname T here 0 , H ;
                   1799:   IS ?domark, ( -- branchtoken )
                   1800: :noname dup T @ H ?struc T here over branchoffset swap ! H ;
                   1801:   IS branchtoresolve, ( branchtoken -- )
                   1802: :noname branchto, T here H ;
                   1803:   IS branchtomark, ( -- target-addr )
1.52      jwilke   1804: 
                   1805: >TARGET
                   1806: 
                   1807: \ Structural Conditionals                              12dec92py
                   1808: 
                   1809: Cond: BUT       restrict? sys? swap ;Cond
                   1810: Cond: YET       restrict? sys? dup ;Cond
                   1811: 
1.54      pazsan   1812: 0 [IF]
1.52      jwilke   1813: >CROSS
                   1814: Variable tleavings
                   1815: >TARGET
                   1816: 
                   1817: Cond: DONE   ( addr -- )  restrict? tleavings @
                   1818:       BEGIN  2dup u> 0=  WHILE  dup T @ H swap >resolve REPEAT
                   1819:       tleavings ! drop ;Cond
                   1820: 
                   1821: >CROSS
1.54      pazsan   1822: : (leave)  T here H tleavings @ T , H  tleavings ! ;
1.52      jwilke   1823: >TARGET
                   1824: 
1.54      pazsan   1825: Cond: LEAVE     restrict? compile branch (leave) ;Cond
                   1826: Cond: ?LEAVE    restrict? compile 0=  compile ?branch (leave)  ;Cond
1.52      jwilke   1827: 
1.53      jwilke   1828: [ELSE]
                   1829:     \ !! This is WIP
                   1830:     \ The problem is (?DO)!
                   1831:     \ perhaps we need a plug-in for (?DO)
                   1832:     
                   1833: >CROSS
                   1834: Variable tleavings 0 tleavings !
1.54      pazsan   1835: : (done) ( addr -- )
                   1836:     tleavings @
                   1837:     BEGIN  dup
                   1838:     WHILE
                   1839:        >r dup r@ cell+ @ \ address of branch
                   1840:        u> 0=      \ lower than DO?     
                   1841:     WHILE
                   1842:        r@ 2 cells + @ \ branch token
                   1843:        branchtoresolve,
                   1844:        r@ @ r> free throw
                   1845:     REPEAT  r>  THEN
                   1846:     tleavings ! drop ;
                   1847: 
1.53      jwilke   1848: >TARGET
                   1849: 
1.54      pazsan   1850: Cond: DONE   ( addr -- )  restrict? (done) ;Cond
1.53      jwilke   1851: 
                   1852: >CROSS
1.54      pazsan   1853: : (leave) ( branchtoken -- )
1.53      jwilke   1854:     3 cells allocate throw >r
                   1855:     T here H r@ cell+ !
                   1856:     r@ 2 cells + !
                   1857:     tleavings @ r@ !
                   1858:     r> tleavings ! ;
                   1859: >TARGET
                   1860: 
1.54      pazsan   1861: Cond: LEAVE     restrict? branchmark, (leave) ;Cond
                   1862: Cond: ?LEAVE    restrict? compile 0=  ?branchmark, (leave)  ;Cond
1.53      jwilke   1863: 
                   1864: [THEN]
                   1865: 
1.54      pazsan   1866: >CROSS
                   1867: \ !!JW ToDo : Move to general tools section
                   1868: 
                   1869: : to1 ( x1 x2 xn n -- addr )
                   1870: \G packs n stack elements in a allocated memory region
                   1871:    dup dup 1+ cells allocate throw dup >r swap 1+
                   1872:    0 DO tuck ! cell+ LOOP
                   1873:    drop r> ;
                   1874: : 1to ( addr -- x1 x2 xn )
                   1875: \G unpacks the elements saved by to1
                   1876:     dup @ swap over cells + swap
                   1877:     0 DO  dup @ swap 1 cells -  LOOP
                   1878:     free throw ;
                   1879: 
                   1880: : loop]     branchto, dup <resolve tcell - (done) ;
                   1881: 
                   1882: : skiploop] ?dup IF branchto, branchtoresolve, THEN ;
                   1883: 
                   1884: >TARGET
                   1885: 
1.52      jwilke   1886: \ Structural Conditionals                              12dec92py
                   1887: 
1.53      jwilke   1888: >TARGET
1.52      jwilke   1889: Cond: AHEAD     restrict? branchmark, ;Cond
                   1890: Cond: IF        restrict? ?branchmark, ;Cond
                   1891: Cond: THEN      restrict? sys? branchto, branchtoresolve, ;Cond
                   1892: Cond: ELSE      restrict? sys? compile AHEAD swap compile THEN ;Cond
                   1893: 
                   1894: Cond: BEGIN     restrict? branchtomark, ;Cond
                   1895: Cond: WHILE     restrict? sys? compile IF swap ;Cond
                   1896: Cond: AGAIN     restrict? sys? branch, ;Cond
                   1897: Cond: UNTIL     restrict? sys? ?branch, ;Cond
                   1898: Cond: REPEAT    restrict? over 0= ?struc compile AGAIN compile THEN ;Cond
                   1899: 
                   1900: Cond: CASE      restrict? 0 ;Cond
                   1901: Cond: OF        restrict? 1+ >r compile over compile =
                   1902:                 compile IF compile drop r> ;Cond
1.45      pazsan   1903: Cond: ENDOF     restrict? >r compile ELSE r> ;Cond
                   1904: Cond: ENDCASE   restrict? compile drop 0 ?DO  compile THEN  LOOP ;Cond
1.1       anton    1905: 
                   1906: \ Structural Conditionals                              12dec92py
                   1907: 
1.67      jwilke   1908: :noname \ ?? i think 0 is too much! jaw
1.54      pazsan   1909:     0 compile (do)
                   1910:     branchtomark,  2 to1 ;
                   1911:   IS do, ( -- target-addr )
                   1912: 
                   1913: \ :noname
                   1914: \     compile 2dup compile = compile IF
                   1915: \     compile 2drop compile ELSE
                   1916: \     compile (do) branchtomark, 2 to1 ;
                   1917: \   IS ?do,
                   1918:     
                   1919: :noname
                   1920:     0 compile (?do)  ?domark, (leave)
                   1921:     branchtomark,  2 to1 ;
                   1922:   IS ?do, ( -- target-addr )
                   1923: :noname compile (for) branchtomark, ;
                   1924:   IS for, ( -- target-addr )
                   1925: :noname 1to compile (loop)  loop] compile unloop skiploop] ;
                   1926:   IS loop, ( target-addr -- )
                   1927: :noname 1to compile (+loop)  loop] compile unloop skiploop] ;
                   1928:   IS +loop, ( target-addr -- )
                   1929: :noname compile (next)  loop] compile unloop ;
                   1930:   IS next, ( target-addr -- )
                   1931: 
                   1932: Cond: DO       restrict? do, ;Cond
                   1933: Cond: ?DO      restrict? ?do, ;Cond
                   1934: Cond: FOR      restrict? for, ;Cond
                   1935: 
                   1936: Cond: LOOP     restrict? sys? loop, ;Cond
                   1937: Cond: +LOOP    restrict? sys? +loop, ;Cond
                   1938: Cond: NEXT     restrict? sys? next, ;Cond
1.52      jwilke   1939: 
1.1       anton    1940: \ String words                                         23feb93py
                   1941: 
1.52      jwilke   1942: : ,"            [char] " parse T string, align H ;
1.1       anton    1943: 
                   1944: Cond: ."        restrict? compile (.")     T ," H ;Cond
                   1945: Cond: S"        restrict? compile (S")     T ," H ;Cond
                   1946: Cond: ABORT"    restrict? compile (ABORT") T ," H ;Cond
                   1947: 
                   1948: Cond: IS        T ' >body H compile ALiteral compile ! ;Cond
1.66      pazsan   1949: : IS            T >address ' >body ! H ;
1.9       pazsan   1950: Cond: TO        T ' >body H compile ALiteral compile ! ;Cond
                   1951: : TO            T ' >body ! H ;
1.1       anton    1952: 
1.52      jwilke   1953: Cond: defers   T ' >body @ compile, H ;Cond
                   1954: : on           T -1 swap ! H ; 
                   1955: : off          T 0 swap ! H ;
                   1956: 
1.1       anton    1957: \ LINKED ERR" ENV" 2ENV"                                18may93jaw
                   1958: 
                   1959: \ linked list primitive
                   1960: : linked        T here over @ A, swap ! H ;
1.52      jwilke   1961: : chained      T linked A, H ;
1.1       anton    1962: 
                   1963: : err"   s" ErrLink linked" evaluate T , H
1.52      jwilke   1964:          [char] " parse T string, align H ;
1.1       anton    1965: 
                   1966: : env"  [char] " parse s" EnvLink linked" evaluate
1.52      jwilke   1967:         T string, align , H ;
1.1       anton    1968: 
                   1969: : 2env" [char] " parse s" EnvLink linked" evaluate
1.52      jwilke   1970:         here >r T string, align , , H
1.1       anton    1971:         r> dup T c@ H 80 and swap T c! H ;
                   1972: 
                   1973: \ compile must be last                                 22feb93py
                   1974: 
                   1975: Cond: compile ( -- ) restrict? \ name
1.13      pazsan   1976:       bl word gfind dup 0= ABORT" CROSS: Can't compile"
1.1       anton    1977:       0> IF    gexecute
                   1978:          ELSE  dup >magic @ <imm> =
                   1979:                IF   gexecute
1.54      pazsan   1980:                ELSE compile (compile) addr, THEN THEN ;Cond
1.1       anton    1981: 
                   1982: Cond: postpone ( -- ) restrict? \ name
1.13      pazsan   1983:       bl word gfind dup 0= ABORT" CROSS: Can't compile"
1.1       anton    1984:       0> IF    gexecute
                   1985:          ELSE  dup >magic @ <imm> =
                   1986:                IF   gexecute
1.54      pazsan   1987:               ELSE compile (compile) addr, THEN THEN ;Cond
                   1988:           
                   1989: \ \ minimal definitions
                   1990:           
1.1       anton    1991: >MINIMAL
                   1992: also minimal
                   1993: \ Usefull words                                        13feb93py
                   1994: 
                   1995: : KB  400 * ;
                   1996: 
1.54      pazsan   1997: \ \ [IF] [ELSE] [THEN] ...                             14sep97jaw
                   1998: 
                   1999: \ it is useful to define our own structures and not to rely
                   2000: \ on the words in the compiler
                   2001: \ The words in the compiler might be defined with vocabularies
                   2002: \ this doesn't work with our self-made compile-loop
                   2003: 
                   2004: Create parsed 20 chars allot   \ store word we parsed
                   2005: 
                   2006: : upcase
                   2007:     parsed count bounds
                   2008:     ?DO I c@ toupper I c! LOOP ;
                   2009: 
                   2010: : [ELSE]
                   2011:     1 BEGIN
                   2012:        BEGIN bl word count dup WHILE
                   2013:            comment? parsed place upcase parsed count
                   2014:            2dup s" [IF]" compare 0= >r 
                   2015:            2dup s" [IFUNDEF]" compare 0= >r
                   2016:            2dup s" [IFDEF]" compare 0= r> or r> or
                   2017:            IF   2drop 1+
                   2018:            ELSE 2dup s" [ELSE]" compare 0=
                   2019:                IF   2drop 1- dup
                   2020:                    IF 1+
                   2021:                    THEN
                   2022:                ELSE
                   2023:                    2dup s" [ENDIF]" compare 0= >r
                   2024:                    s" [THEN]" compare 0= r> or
                   2025:                    IF 1- THEN
                   2026:                THEN
                   2027:            THEN
                   2028:            ?dup 0= ?EXIT
                   2029:        REPEAT
                   2030:        2drop refill 0=
                   2031:     UNTIL drop ; immediate
                   2032:   
                   2033: : [THEN] ( -- ) ; immediate
                   2034: 
                   2035: : [ENDIF] ( -- ) ; immediate
                   2036: 
                   2037: : [IF] ( flag -- )
                   2038:     0= IF postpone [ELSE] THEN ; immediate 
                   2039: 
                   2040: Cond: [IF]      postpone [IF] ;Cond
                   2041: Cond: [THEN]    postpone [THEN] ;Cond
                   2042: Cond: [ELSE]    postpone [ELSE] ;Cond
                   2043: 
1.1       anton    2044: \ define new [IFDEF] and [IFUNDEF]                      20may93jaw
                   2045: 
1.43      pazsan   2046: : defined? defined? ;
1.44      pazsan   2047: : needed? needed? ;
                   2048: : doer? doer? ;
1.1       anton    2049: 
1.52      jwilke   2050: \ we want to use IFDEF on compiler directives (e.g. E?) in the source, too
                   2051: 
                   2052: : directive? 
                   2053:   bl word count [ ' target >wordlist ] aliteral search-wordlist 
                   2054:   dup IF nip THEN ;
                   2055: 
                   2056: : [IFDEF]  >in @ directive? swap >in !
                   2057:           0= IF defined? ELSE name 2drop true THEN
                   2058:           postpone [IF] ;
                   2059: 
1.43      pazsan   2060: : [IFUNDEF] defined? 0= postpone [IF] ;
1.1       anton    2061: 
1.54      pazsan   2062: Cond: [IFDEF]   postpone [IFDEF] ;Cond
                   2063: 
                   2064: Cond: [IFUNDEF] postpone [IFUNDEF] ;Cond
                   2065: 
1.1       anton    2066: \ C: \- \+ Conditional Compiling                         09jun93jaw
                   2067: 
1.43      pazsan   2068: : C: >in @ defined? 0=
1.1       anton    2069:      IF    >in ! T : H
                   2070:      ELSE drop
                   2071:         BEGIN bl word dup c@
                   2072:               IF   count comment? s" ;" compare 0= ?EXIT
                   2073:               ELSE refill 0= ABORT" CROSS: Out of Input while C:"
                   2074:               THEN
                   2075:         AGAIN
                   2076:      THEN ;
                   2077: 
                   2078: also minimal
                   2079: 
1.74      jwilke   2080: : d? d? ;
                   2081: 
                   2082: \G doesn't skip line when debug switch is on
                   2083: : \D D? 0= IF postpone \ THEN ;
1.52      jwilke   2084: 
1.48      anton    2085: \G interprets the line if word is not defined
1.43      pazsan   2086: : \- defined? IF postpone \ THEN ;
1.48      anton    2087: 
                   2088: \G interprets the line if word is defined
1.43      pazsan   2089: : \+ defined? 0= IF postpone \ THEN ;
1.1       anton    2090: 
1.48      anton    2091: Cond: \- \- ;Cond
                   2092: Cond: \+ \+ ;Cond
1.52      jwilke   2093: Cond: \D \D ;Cond
1.48      anton    2094: 
                   2095: : ?? bl word find IF execute ELSE drop 0 THEN ;
                   2096: 
                   2097: : needed:
                   2098: \G defines ghost for words that we want to be compiled
                   2099:   BEGIN >in @ bl word c@ WHILE >in ! ghost drop REPEAT drop ;
                   2100: 
                   2101: previous
                   2102: 
1.1       anton    2103: \ save-cross                                           17mar93py
                   2104: 
1.48      anton    2105: >CROSS
1.62      pazsan   2106: Create magic  s" Gforth2x" here over allot swap move
1.26      pazsan   2107: 
1.63      anton    2108: bigendian 1+ \ strangely, in magic big=0, little=1
                   2109: tcell 1 = 0 and or
1.62      pazsan   2110: tcell 2 = 2 and or
                   2111: tcell 4 = 4 and or
                   2112: tcell 8 = 6 and or
1.65      pazsan   2113: tchar 1 = $00 and or
                   2114: tchar 2 = $28 and or
                   2115: tchar 4 = $50 and or
                   2116: tchar 8 = $78 and or
1.62      pazsan   2117: magic 7 + c!
1.26      pazsan   2118: 
1.34      anton    2119: : save-cross ( "image-name" "binary-name" -- )
                   2120:   bl parse ." Saving to " 2dup type cr
1.1       anton    2121:   w/o bin create-file throw >r
1.48      anton    2122:   TNIL IF
1.43      pazsan   2123:       s" #! "   r@ write-file throw
                   2124:       bl parse  r@ write-file throw
                   2125:       s"  -i"   r@ write-file throw
                   2126:       #lf       r@ emit-file throw
                   2127:       r@ dup file-position throw drop 8 mod 8 swap ( file-id limit index )
                   2128:       ?do
                   2129:          bl over emit-file throw
                   2130:       loop
                   2131:       drop
                   2132:       magic 8       r@ write-file throw \ write magic
                   2133:   ELSE
                   2134:       bl parse 2drop
                   2135:   THEN
1.52      jwilke   2136:   image @ there 
                   2137:   r@ write-file throw \ write image
1.48      anton    2138:   TNIL IF
                   2139:       bit$  @ there 1- tcell>bit rshift 1+
1.16      pazsan   2140:                 r@ write-file throw \ write tags
1.43      pazsan   2141:   THEN
1.1       anton    2142:   r> close-file throw ;
                   2143: 
1.52      jwilke   2144: : save-region ( addr len -- )
                   2145:   bl parse w/o bin create-file throw >r
1.67      jwilke   2146:   swap >image swap r@ write-file throw
1.52      jwilke   2147:   r> close-file throw ;
                   2148: 
1.1       anton    2149: \ words that should be in minimal
1.52      jwilke   2150: 
                   2151: create s-buffer 50 chars allot
                   2152: 
1.48      anton    2153: >MINIMAL
                   2154: also minimal
1.1       anton    2155: 
1.48      anton    2156: bigendian Constant bigendian
1.52      jwilke   2157: : here there ;
1.67      jwilke   2158: : equ constant ;
                   2159: : mark there constant ;
1.54      pazsan   2160: 
                   2161: \ compiler directives
1.52      jwilke   2162: : >ram >ram ;
                   2163: : >rom >rom ;
                   2164: : >auto >auto ;
                   2165: : >tempdp >tempdp ;
                   2166: : tempdp> tempdp> ;
                   2167: : const constflag on ;
                   2168: : warnings name 3 = 0= twarnings ! drop ;
1.60      anton    2169: : | ;
                   2170: \ : | NoHeaderFlag on ; \ This is broken (damages the last word)
1.52      jwilke   2171: 
1.48      anton    2172: : save-cross save-cross ;
1.52      jwilke   2173: : save-region save-region ;
                   2174: : tdump swap >image swap dump ;
                   2175: 
1.48      anton    2176: also forth 
1.52      jwilke   2177: [IFDEF] Label           : Label defempty? Label ; [THEN] 
                   2178: [IFDEF] start-macros    : start-macros defempty? start-macros ; [THEN]
                   2179: [IFDEF] builttag       : builttag builttag ;   [THEN]
1.48      anton    2180: previous
                   2181: 
1.52      jwilke   2182: : s" [char] " parse s-buffer place s-buffer count ; \ for environment?
1.43      pazsan   2183: : + + ;
1.52      jwilke   2184: : 1+ 1 + ;
                   2185: : 2+ 2 + ;
1.43      pazsan   2186: : or or ;
                   2187: : 1- 1- ;
                   2188: : - - ;
1.52      jwilke   2189: : and and ;
                   2190: : or or ;
1.43      pazsan   2191: : 2* 2* ;
                   2192: : * * ;
                   2193: : / / ;
                   2194: : dup dup ;
                   2195: : over over ;
                   2196: : swap swap ;
                   2197: : rot rot ;
                   2198: : drop drop ;
                   2199: : =   = ;
                   2200: : 0=   0= ;
                   2201: : lshift lshift ;
                   2202: : 2/ 2/ ;
1.19      pazsan   2203: : . . ;
1.1       anton    2204: 
1.43      pazsan   2205: : all-words    ['] false    IS skip? ;
                   2206: : needed-words ['] needed?  IS skip? ;
1.75    ! jwilke   2207: : undef-words  ['] defined2? IS skip? ;
        !          2208: : skipdef skipdef ;
1.1       anton    2209: 
1.40      pazsan   2210: : \  postpone \ ;  immediate
1.47      pazsan   2211: : \G T-\G ; immediate
1.40      pazsan   2212: : (  postpone ( ;  immediate
1.1       anton    2213: : include bl word count included ;
1.52      jwilke   2214: : require require ;
1.1       anton    2215: : .( [char] ) parse type ;
1.52      jwilke   2216: : ." [char] " parse type ;
1.1       anton    2217: : cr cr ;
                   2218: 
                   2219: : times 0 ?DO dup T c, H LOOP drop ; \ used for space table creation
                   2220: only forth also minimal definitions
                   2221: 
                   2222: \ cross-compiler words
                   2223: 
                   2224: : decimal       decimal ;
                   2225: : hex           hex ;
                   2226: 
1.3       pazsan   2227: : tudp          T tudp H ;
1.39      pazsan   2228: : tup           T tup H ;
                   2229: 
                   2230: : doc-off       false T to-doc H ! ;
                   2231: : doc-on        true  T to-doc H ! ;
1.52      jwilke   2232: [IFDEF] dbg : dbg dbg ; [THEN]
1.39      pazsan   2233: 
                   2234: minimal
1.1       anton    2235: 
                   2236: \ for debugging...
                   2237: : order         order ;
1.52      jwilke   2238: : hwords         words ;
                   2239: : words        also ghosts words previous ;
1.1       anton    2240: : .s            .s ;
                   2241: : bye           bye ;
                   2242: 
                   2243: \ turnkey direction
                   2244: : H forth ; immediate
                   2245: : T minimal ; immediate
                   2246: : G ghosts ; immediate
                   2247: 
                   2248: : turnkey  0 set-order also Target definitions
                   2249:            also Minimal also ;
                   2250: 
                   2251: \ these ones are pefered:
                   2252: 
                   2253: : lock   turnkey ;
1.74      jwilke   2254: : unlock previous forth also cross ;
1.52      jwilke   2255: 
                   2256: : [[ also unlock ;
                   2257: : ]] previous previous ;
1.1       anton    2258: 
                   2259: unlock definitions also minimal
                   2260: : lock   lock ;
                   2261: lock

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