File:  [gforth] / gforth / cross.fs
Revision 1.53: download - view: text, annotated - select for diffs
Sat Sep 13 12:04:55 1997 UTC (22 years, 2 months ago) by jwilke
Branches: MAIN
CVS tags: HEAD
Fixes to tasker.fs, environ.fs
Changed has-xy flags to environmental queries!!

    1: \ CROSS.FS     The Cross-Compiler                      06oct92py
    2: \ Idea and implementation: Bernd Paysan (py)
    3: 
    4: \ Copyright (C) 1995 Free Software Foundation, Inc.
    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.
   21: 
   22: \ Log:
   23: \       changed in ; [ to state off           12may93jaw
   24: \       included place +place                 12may93jaw
   25: \       for a created word (variable, constant...)
   26: \       is now an alias in the target voabulary.
   27: \       this means it is no longer necessary to
   28: \       switch between vocabularies for variable
   29: \       initialization                        12may93jaw
   30: \       discovered error in DOES>
   31: \       replaced !does with (;code)           16may93jaw
   32: \       made complete redesign and
   33: \       introduced two vocs method
   34: \       to be asure that the right words
   35: \       are found                             08jun93jaw
   36: \       btw:  ! works not with 16 bit
   37: \             targets                         09jun93jaw
   38: \       added: 2user and value                11jun93jaw
   39: 
   40: \ 	needed? works better now!!!		01mar97jaw
   41: \	mach file is only loaded into target
   42: \	cell corrected
   43: \ 	romable extansions			27apr97-5jun97jaw
   44: 
   45: 
   46: hex     \ the defualt base for the cross-compiler is hex !!
   47: Warnings off
   48: 
   49: \ words that are generaly useful
   50: 
   51: : >wordlist ( vocabulary-xt -- wordlist-struct )
   52:   also execute get-order swap >r 1- set-order r> ;
   53: 
   54: : umax 2dup u< IF swap THEN drop ;
   55: : umin 2dup u> IF swap THEN drop ;
   56: 
   57: : string, ( c-addr u -- )
   58:     \ puts down string as cstring
   59:     dup c, here swap chars dup allot move ;
   60: 
   61: : SetValue ( n -- <name> )
   62: \G Same behaviour as "Value" when the <name> is not defined
   63: \G Same behaviour as "to" when <name> is defined
   64: \G SetValue searches in the current vocabulary
   65:  save-input bl word >r restore-input throw r> count
   66:  get-current search-wordlist
   67:  IF bl word drop >body ! ELSE Value THEN ;
   68: 
   69: : DefaultValue ( n -- <name> )
   70: \G Same behaviour as "Value" when the <name> is not defined
   71: \G SetValue searches in the current vocabulary
   72:  save-input bl word >r restore-input throw r> count
   73:  get-current search-wordlist
   74:  IF bl word drop drop drop ELSE Value THEN ;
   75: 
   76: hex
   77: 
   78: Vocabulary Cross
   79: Vocabulary Target
   80: Vocabulary Ghosts
   81: VOCABULARY Minimal
   82: only Forth also Target also also
   83: definitions Forth
   84: 
   85: : T  previous Cross also Target ; immediate
   86: : G  Ghosts ; immediate
   87: : H  previous Forth also Cross ; immediate
   88: 
   89: forth definitions
   90: 
   91: : T  previous Cross also Target ; immediate
   92: : G  Ghosts ; immediate
   93: 
   94: : >cross  also Cross definitions previous ;
   95: : >target also Target definitions previous ;
   96: : >minimal also Minimal definitions previous ;
   97: 
   98: H
   99: 
  100: >CROSS
  101: 
  102: \ 1 Constant Cross-Flag	\ to check whether assembler compiler plug-ins are
  103: 			\ for cross-compiling
  104: \ No! we use "[IFUNDEF]" there to find out whether we are target compiling!!!
  105: 
  106: : comment? ( c-addr u -- c-addr u )
  107:         2dup s" (" compare 0=
  108:         IF    postpone (
  109:         ELSE  2dup s" \" compare 0= IF postpone \ THEN
  110:         THEN ;
  111: 
  112: \ Begin CROSS COMPILER:
  113: 
  114: 
  115: 
  116: \ \ --------------------        Error Handling                  05aug97jaw
  117: 
  118: \ Flags
  119: 
  120: also forth definitions  \ these values may be predefined before
  121:                         \ the cross-compiler is loaded
  122: 
  123: false DefaultValue stack-warn   	 \ check on empty stack at any definition
  124: false DefaultValue create-forward-warn   \ warn on forward declaration of created words
  125: 
  126: [IFUNDEF] DebugMaskSrouce Variable DebugMaskSource 0 DebugMaskSource ! [THEN]
  127: [IFUNDEF] DebugMaskCross  Variable DebugMaskCross  0 DebugMaskCross  ! [THEN]
  128: 
  129: previous >CROSS
  130: 
  131: : .dec
  132:   base @ decimal swap . base ! ;
  133: 
  134: : .sourcepos
  135:   cr sourcefilename type ." :"
  136:   sourceline# .dec ;
  137: 
  138: : warnhead
  139: \G display error-message head
  140: \G perhaps with linenumber and filename
  141:   .sourcepos ." Warning: " ;
  142: 
  143: : empty? depth IF .sourcepos ." Stack not empty!"  THEN ;
  144: 
  145: stack-warn [IF]
  146: : defempty? empty? ;
  147: [ELSE]
  148: : defempty? ; immediate
  149: [THEN]
  150: 
  151: 
  152: \ \ GhostNames Ghosts                                  9may93jaw
  153: 
  154: \ second name source to search trough list
  155: 
  156: VARIABLE GhostNames
  157: 0 GhostNames !
  158: 
  159: : GhostName ( -- addr )
  160:     here GhostNames @ , GhostNames ! here 0 ,
  161:     bl word count
  162:     \ 2dup type space
  163:     string, \ !! cfalign ?
  164:     align ;
  165: 
  166: \ Ghost Builder                                        06oct92py
  167: 
  168: \ <T T> new version with temp variable                 10may93jaw
  169: 
  170: VARIABLE VocTemp
  171: 
  172: : <T  get-current VocTemp ! also Ghosts definitions ;
  173: : T>  previous VocTemp @ set-current ;
  174: 
  175: hex
  176: 4711 Constant <fwd>             4712 Constant <res>
  177: 4713 Constant <imm>             4714 Constant <do:>
  178: 
  179: \ iForth makes only immediate directly after create
  180: \ make atonce trick! ?
  181: 
  182: Variable atonce atonce off
  183: 
  184: : NoExec true ABORT" CROSS: Don't execute ghost" ;
  185: 
  186: : GhostHeader <fwd> , 0 , ['] NoExec , ;
  187: 
  188: : >magic ;		\ type of ghost
  189: : >link cell+ ;		\ pointer where ghost is in target, or if unresolved
  190: 			\ points to the where we have to resolve (linked-list)
  191: : >exec cell+ cell+ ;	\ execution symantics (while target compiling) of ghost
  192: : >end 3 cells + ;	\ room for additional tags
  193: 			\ for builder (create, variable...) words the
  194: 			\ execution symantics of words built are placed here
  195: 
  196: Variable executed-ghost \ last executed ghost, needed in tcreate and gdoes>
  197: Variable last-ghost	\ last ghost that is created
  198: Variable last-header-ghost \ last ghost definitions with header
  199: 
  200: : Make-Ghost ( "name" -- ghost )
  201:   >in @ GhostName swap >in !
  202:   <T Create atonce @ IF immediate atonce off THEN
  203:   here tuck swap ! ghostheader T>
  204:   dup last-ghost !
  205:   DOES> dup executed-ghost ! >exec @ execute ;
  206: 
  207: \ ghost words                                          14oct92py
  208: \                                          changed:    10may93py/jaw
  209: 
  210: : gfind   ( string -- ghost true/1 / string false )
  211: \ searches for string in word-list ghosts
  212:   dup count [ ' ghosts >wordlist ] ALiteral search-wordlist
  213:   dup IF >r >body nip r>  THEN ;
  214: 
  215: : gdiscover ( xt -- ghost true | xt false )
  216:   GhostNames
  217:   BEGIN @ dup
  218:   WHILE 2dup
  219:         cell+ @ dup >magic @ <fwd> <>
  220:         >r >link @ = r> and
  221:         IF cell+ @ nip true EXIT THEN
  222:   REPEAT
  223:   drop false ;
  224: 
  225: VARIABLE Already
  226: 
  227: : ghost   ( "name" -- ghost )
  228:   Already off
  229:   >in @  bl word gfind   IF  Already on nip EXIT  THEN
  230:   drop  >in !  Make-Ghost ;
  231: 
  232: : >ghostname ( ghost -- adr len )
  233:   GhostNames
  234:   BEGIN @ dup
  235:   WHILE 2dup cell+ @ =
  236:   UNTIL nip 2 cells + count
  237:   ELSE  2drop true abort" CROSS: Ghostnames inconsistent"
  238:   THEN ;
  239: 
  240: ' >ghostname ALIAS @name
  241: 
  242: : forward? ( ghost -- flag )
  243:   >magic @ <fwd> = ;
  244: 
  245: \ Predefined ghosts                                    12dec92py
  246: 
  247: ghost 0=                                        drop
  248: ghost branch    ghost ?branch                   2drop
  249: ghost (do)      ghost (?do)                     2drop
  250: ghost (for)                                     drop
  251: ghost (loop)    ghost (+loop)                   2drop
  252: ghost (next)                                    drop
  253: ghost unloop    ghost ;S                        2drop
  254: ghost lit       ghost (compile) ghost !         2drop drop
  255: ghost (does>)   ghost noop                      2drop
  256: ghost (.")      ghost (S")      ghost (ABORT")  2drop drop
  257: ghost '                                         drop
  258: ghost :docol    ghost :doesjump ghost :dodoes   2drop drop
  259: ghost over      ghost =         ghost drop      2drop drop
  260: ghost - drop
  261: 
  262: \ \ Parameter for target systems                         06oct92py
  263: 
  264: \ we define it ans like...
  265: wordlist Constant target-environment
  266: 
  267: VARIABLE env-current \ save information of current dictionary to restore with environ>
  268: 
  269: : >ENVIRON get-current env-current ! target-environment set-current ;
  270: : ENVIRON> env-current @ set-current ; 
  271: 
  272: >TARGET
  273: 
  274: : environment?
  275:   target-environment search-wordlist 
  276:   IF execute true ELSE false THEN ;
  277: 
  278: : e? name T environment? H 0= ABORT" environment variable not defined!" ;
  279: 
  280: : has? 	name T environment? H 
  281: 	IF 	\ environment variable is present, return its value
  282: 	ELSE	\ environment variable is not present, return false
  283: 		\ !! JAW abort is just for testing
  284: 		false true ABORT" arg" 
  285: 	THEN ;
  286: 
  287: : $has? T environment? H IF ELSE false THEN ;
  288: 
  289: >ENVIRON
  290: false SetValue ionly
  291: true  SetValue cross
  292: >TARGET
  293: 
  294: mach-file count included hex
  295: 
  296: >ENVIRON
  297: 
  298: s" interpreter" T environment? H 0= ?dup nip [IF] true Value interpreter [THEN]
  299: s" ITC" T environment? H 0= ?dup nip [IF] true SetValue ITC [THEN]
  300: s" rom" T environment? H 0= ?dup nip [IF] false Value rom [THEN]
  301: 
  302: >TARGET
  303: s" relocate" T environment? H 
  304: [IF]	SetValue NIL
  305: [ELSE]	>ENVIRON T NIL H SetValue relocate
  306: [THEN]
  307: 
  308: >CROSS
  309: 
  310: \ \ Create additional parameters                         19jan95py
  311: 
  312: T
  313: NIL		   Constant TNIL
  314: cell               Constant tcell
  315: cell<<             Constant tcell<<
  316: cell>bit           Constant tcell>bit
  317: bits/byte          Constant tbits/byte
  318: float              Constant tfloat
  319: 1 bits/byte lshift Constant maxbyte
  320: H
  321: 
  322: \ Variables                                            06oct92py
  323: 
  324: Variable image
  325: Variable tlast    TNIL tlast !  \ Last name field
  326: Variable tlastcfa \ Last code field
  327: Variable tdoes    \ Resolve does> calls
  328: Variable bit$
  329: 
  330: \ statistics						10jun97jaw
  331: 
  332: Variable headers-named 0 headers-named !
  333: Variable user-vars 0 user-vars !
  334: 
  335: \ Memory initialisation                                05dec92py
  336: 
  337: [IFDEF] Memory \ Memory is a bigFORTH feature
  338:    also Memory
  339:    : initmem ( var len -- )
  340:      2dup swap handle! >r @ r> erase ;
  341:    toss
  342: [ELSE]
  343:    : initmem ( var len -- )
  344:      tuck allocate abort" CROSS: No memory for target"
  345:      ( len var adr ) dup rot !
  346:      ( len adr ) swap erase ;
  347: [THEN]
  348: 
  349: \ MakeKernal                                           12dec92py
  350: 
  351: : makekernel ( targetsize -- targetsize )
  352:   bit$  over 1- tcell>bit rshift 1+ initmem
  353:   image over initmem ;
  354: 
  355: >MINIMAL
  356: : makekernel makekernel ;
  357: 
  358: 
  359: >CROSS
  360: 
  361: \ memregion.fs
  362: 
  363: 
  364: Variable last-defined-region    \ pointer to last defined region
  365: Variable region-link            \ linked list with all regions
  366: Variable mirrored-link          \ linked list for mirrored regions
  367: 0 dup mirrored-link ! region-link !
  368: 
  369: 
  370: : >rdp 2 cells + ;
  371: : >rlen cell+ ;
  372: : >rstart ;
  373: 
  374: 
  375: : region ( addr len -- )                \G create a new region
  376:   \ check whether predefined region exists 
  377:   save-input bl word find >r >r restore-input throw r> r> 0= 
  378:   IF	\ make region
  379: 	drop
  380: 	save-input create restore-input throw
  381: 	here last-defined-region !
  382: 	over ( startaddr ) , ( length ) , ( dp ) ,
  383: 	region-link linked name string,
  384:   ELSE	\ store new parameters in region
  385:         bl word drop
  386: 	>body >r r@ last-defined-region !
  387: 	r@ cell+ ! dup r@ ! r> 2 cells + !
  388:   THEN ;
  389: 
  390: : borders ( region -- startaddr endaddr ) \G returns lower and upper region border
  391:   dup @ swap cell+ @ over + ;
  392: 
  393: : extent  ( region -- startaddr len )   \G returns the really used area
  394:   dup @ swap 2 cells + @ over - ;
  395: 
  396: : area ( region -- startaddr totallen ) \G returns the total area
  397:   dup @ swap cell+ @ ;
  398: 
  399: : mirrored                              \G mark a region as mirrored
  400:   mirrored-link
  401:   linked last-defined-region @ , ;
  402: 
  403: : .addr
  404:   base @ >r hex
  405:   tcell 2 u>
  406:   IF s>d <# # # # # '. hold # # # # #> type
  407:   ELSE s>d <# # # # # # #> type
  408:   THEN r> base ! ;
  409: 
  410: : .regions                      \G display region statistic
  411: 
  412:   \ we want to list the regions in the right order
  413:   \ so first collect all regions on stack
  414:   0 region-link @
  415:   BEGIN dup WHILE dup @ REPEAT drop
  416:   BEGIN dup
  417:   WHILE cr 3 cells - >r
  418: 	r@ 4 cells + count tuck type
  419:         12 swap - 0 max spaces space
  420: 	." Start: " r@ @ dup .addr space
  421: 	." End: " r@ 1 cells + @ + .addr space
  422: 	." DP: " r> 2 cells + @ .addr 
  423:   REPEAT drop
  424:   s" rom" T $has? H 0= ?EXIT
  425:   cr ." Mirrored:"
  426:   mirrored-link @
  427:   BEGIN dup
  428:   WHILE	space dup cell+ @ 4 cells + count type @
  429:   REPEAT drop cr
  430:   ;
  431: 
  432: \ -------- predefined regions
  433: 
  434: 0 0 region address-space
  435: \ total memory addressed and used by the target system
  436: 
  437: 0 0 region dictionary
  438: \ rom area for the compiler
  439: 
  440: T has? rom H
  441: [IF]
  442: 0 0 region ram-dictionary mirrored
  443: \ ram area for the compiler
  444: [ELSE]
  445: ' dictionary ALIAS ram-dictionary
  446: [THEN]
  447: 
  448: 0 0 region return-stack
  449: 
  450: 0 0 region data-stack
  451: 
  452: 0 0 region tib-region
  453: 
  454: ' dictionary ALIAS rom-dictionary
  455: 
  456: 
  457: : setup-target ( -- )   \G initialize targets memory space
  458:   s" rom" T $has? H
  459:   IF  \ check for ram and rom...
  460:       address-space area nip
  461:       ram-dictionary area nip
  462:       rom-dictionary area nip
  463:       and and 0=
  464:       ABORT" CROSS: define address-space, rom- , ram-dictionary, with rom-support!"
  465:   THEN
  466:   address-space area nip
  467:   IF
  468:       address-space area
  469:   ELSE
  470:       dictionary area
  471:   THEN
  472:   dup 0=
  473:   ABORT" CROSS: define at least address-space or dictionary!!"
  474:   + makekernel drop ;
  475: 
  476: \ switched tdp for rom support				03jun97jaw
  477: 
  478: \ second value is here to store some maximal value for statistics
  479: \ tempdp is also embedded here but has nothing to do with rom support
  480: \ (needs switched dp)
  481: 
  482: variable tempdp	0 ,	\ temporary dp for resolving
  483: variable tempdp-save
  484: 
  485: 0 [IF]
  486: variable romdp 0 ,      \ Dictionary-Pointer for ramarea
  487: variable ramdp 0 ,      \ Dictionary-Pointer for romarea
  488: 
  489: \
  490: variable sramdp		\ start of ram-area for forth
  491: variable sromdp		\ start of rom-area for forth
  492: 
  493: [THEN]
  494: 
  495: 
  496: 0 value tdp
  497: variable fixed		\ flag: true: no automatic switching
  498: 			\	false: switching is done automatically
  499: 
  500: \ Switch-Policy:
  501: \
  502: \ a header is always compiled into rom
  503: \ after a created word (create and variable) compilation goes to ram
  504: \
  505: \ Be careful: If you want to make the data behind create into rom
  506: \ you have to put >rom before create!
  507: 
  508: variable constflag constflag off
  509: 
  510: : (switchram)
  511:   fixed @ ?EXIT s" rom" T $has? H 0= ?EXIT
  512:   ram-dictionary >rdp to tdp ;
  513: 
  514: : switchram
  515:   constflag @
  516:   IF constflag off ELSE (switchram) THEN ;
  517: 
  518: : switchrom
  519:   fixed @ ?EXIT rom-dictionary >rdp to tdp ;
  520: 
  521: : >tempdp ( addr -- ) 
  522:   tdp tempdp-save ! tempdp to tdp tdp ! ;
  523: : tempdp> ( -- )
  524:   tempdp-save @ to tdp ;
  525: 
  526: : >ram  fixed off (switchram) fixed on ;
  527: : >rom  fixed off switchrom fixed on ;
  528: : >auto fixed off switchrom ;
  529: 
  530: 
  531: 
  532: \ : romstart dup sromdp ! romdp ! ;
  533: \ : ramstart dup sramdp ! ramdp ! ;
  534: 
  535: \ default compilation goed to rom
  536: \ when romable support is off, only the rom switch is used (!!)
  537: >auto
  538: 
  539: : there  tdp @ ;
  540: 
  541: >TARGET
  542: 
  543: \ \ Target Memory Handling
  544: 
  545: \ Byte ordering and cell size                          06oct92py
  546: 
  547: : cell+         tcell + ;
  548: : cells         tcell<< lshift ;
  549: : chars         ;
  550: : char+		1 + ;
  551: : floats	tfloat * ;
  552:     
  553: >CROSS
  554: : cell/         tcell<< rshift ;
  555: >TARGET
  556: 20 CONSTANT bl
  557: \ TNIL Constant NIL
  558: 
  559: >CROSS
  560: 
  561: bigendian
  562: [IF]
  563:    : S!  ( n addr -- )  >r s>d r> tcell bounds swap 1-
  564:      DO  maxbyte ud/mod rot I c!  -1 +LOOP  2drop ;
  565:    : S@  ( addr -- n )  >r 0 0 r> tcell bounds
  566:      DO  maxbyte * swap maxbyte um* rot + swap I c@ + swap  LOOP d>s ;
  567: [ELSE]
  568:    : S!  ( n addr -- )  >r s>d r> tcell bounds
  569:      DO  maxbyte ud/mod rot I c!  LOOP  2drop ;
  570:    : S@  ( addr -- n )  >r 0 0 r> tcell bounds swap 1-
  571:      DO  maxbyte * swap maxbyte um* rot + swap I c@ + swap  -1 +LOOP d>s ;
  572: [THEN]
  573: 
  574: >CROSS
  575: \ Bit string manipulation                               06oct92py
  576: \                                                       9may93jaw
  577: CREATE Bittable 80 c, 40 c, 20 c, 10 c, 8 c, 4 c, 2 c, 1 c,
  578: : bits ( n -- n ) chars Bittable + c@ ;
  579: 
  580: : >bit ( addr n -- c-addr mask ) 8 /mod rot + swap bits ;
  581: : +bit ( addr n -- )  >bit over c@ or swap c! ;
  582: : -bit ( addr n -- )  >bit invert over c@ and swap c! ;
  583: : relon ( taddr -- )  bit$ @ swap cell/ +bit ;
  584: : reloff ( taddr -- )  bit$ @ swap cell/ -bit ;
  585: 
  586: \ Target memory access                                 06oct92py
  587: 
  588: : align+  ( taddr -- rest )
  589:     tcell tuck 1- and - [ tcell 1- ] Literal and ;
  590: : cfalign+  ( taddr -- rest )
  591:     \ see kernel.fs:cfaligned
  592:     /maxalign tuck 1- and - [ /maxalign 1- ] Literal and ;
  593: 
  594: >TARGET
  595: : aligned ( taddr -- ta-addr )  dup align+ + ;
  596: \ assumes cell alignment granularity (as GNU C)
  597: 
  598: : cfaligned ( taddr1 -- taddr2 )
  599:     \ see kernel.fs
  600:     dup cfalign+ + ;
  601: 
  602: >CROSS
  603: : >image ( taddr -- absaddr )  image @ + ;
  604: >TARGET
  605: : @  ( taddr -- w )     >image S@ ;
  606: : !  ( w taddr -- )     >image S! ;
  607: : c@ ( taddr -- char )  >image c@ ;
  608: : c! ( char taddr -- )  >image c! ;
  609: : 2@ ( taddr -- x1 x2 ) T dup cell+ @ swap @ H ;
  610: : 2! ( x1 x2 taddr -- ) T swap over ! cell+ ! H ;
  611: 
  612: \ Target compilation primitives                        06oct92py
  613: \ included A!                                          16may93jaw
  614: 
  615: : here  ( -- there )    there ;
  616: : allot ( n -- )        tdp +! ;
  617: : ,     ( w -- )        T here H tcell T allot  ! H T here drop H ;
  618: : c,    ( char -- )     T here    1 allot c! H ;
  619: : align ( -- )          T here H align+ 0 ?DO  bl T c, H LOOP ;
  620: : cfalign ( -- )
  621:     T here H cfalign+ 0 ?DO  bl T c, H LOOP ;
  622: 
  623: : A!                    dup relon T ! H ;
  624: : A,    ( w -- )        T here H relon T , H ;
  625: 
  626: >CROSS
  627: 
  628: : tcmove ( source dest len -- )
  629: \G cmove in target memory
  630:   bounds
  631:   ?DO  dup T c@ H I T c! H 1+
  632:   LOOP  drop ;
  633: 
  634: >TARGET
  635: H also Forth definitions \ ." asm: " order
  636: 
  637: : X 	also target bl word find
  638: 	IF	state @ IF compile,
  639: 		ELSE execute THEN
  640: 	ELSE	previous ABORT" Cross: access method not supported!"
  641: 	THEN 
  642: 	previous ; immediate
  643: 
  644: [IFDEF] asm-include asm-include [THEN] hex
  645: 
  646: previous
  647: >CROSS H
  648: 
  649: \ \ --------------------        Compiler Plug Ins               01aug97jaw
  650: 
  651: Defer lit, ( n -- )
  652: Defer alit, ( n -- )
  653: Defer branch, ( target-addr -- )
  654: Defer ?branch, ( target-addr -- )
  655: Defer branchmark, ( -- branch-addr )
  656: Defer ?branchmark, ( -- branch-addr )
  657: Defer branchto,
  658: Defer branchtoresolve, ( branch-addr -- )
  659: Defer branchfrom, ( -- )
  660: Defer branchtomark, ( -- target-addr )
  661: Defer colon, ( tcfa -- )		\ compiles call to tcfa at current position
  662: Defer colon-resolve ( tcfa addr -- )
  663: Defer addr-resolve ( target-addr addr -- )
  664: 
  665: [IFUNDEF] ca>native
  666: defer ca>native	
  667: [THEN]
  668: 
  669: >TARGET
  670: DEFER >body             \ we need the system >body
  671: 			\ and the target >body
  672: >CROSS
  673: T 2 cells H VALUE xt>body
  674: DEFER doprim,
  675: DEFER docol,     \ compiles start of definition and doer
  676: DEFER doer,		
  677: DEFER fini,      \ compiles end of definition ;s
  678: DEFER doeshandler,
  679: DEFER dodoes,
  680: 
  681: DEFER ]comp     \ starts compilation
  682: DEFER comp[     \ ends compilation
  683: 
  684: : (cc) T a, H ;			' (cc) IS colon,
  685: : (cr) >tempdp ]comp colon, comp[ tempdp> ; ' (cr) IS colon-resolve
  686: : (ar) T ! H ;			' (ar) IS addr-resolve
  687: 
  688: >TARGET
  689: : compile, colon, ;
  690: >CROSS
  691: 
  692: \ file loading
  693: 
  694: Variable filelist 0 filelist !
  695: 0 Value	 loadfile
  696: 
  697: 0 [IF] \ !! JAW WIP
  698: 
  699: : add-included-file ( adr len -- )
  700: 	dup 2 cells + allocate throw >r
  701: 	r@ 1 cells + dup TO loadfile place
  702: 	filelist @ r@ !
  703: 	r> filelist ! ;
  704: 
  705: : included? ( c-addr u -- f )
  706:   	filelist
  707: 	BEGIN	@ dup
  708: 	WHILE	>r r@ 1 cells + count compare 0=
  709: 		IF rdrop 2drop true EXIT THEN
  710: 		r>
  711: 	REPEAT
  712: 	2drop drop false ;	
  713: 
  714: : included 
  715: 	cr ." Including: " 2dup type ." ..."
  716: 	2dup add-included-file included ;
  717: 
  718: : include bl word count included ;
  719: 
  720: : require bl word count included ;
  721: 
  722: [THEN]
  723: 
  724: \ resolve structure
  725: 
  726: : >next ;		\ link to next field
  727: : >tag cell+ ;		\ indecates type of reference: 0: call, 1: address
  728: : >taddr cell+ cell+ ;	
  729: : >ghost 3 cells + ;
  730: : >file 4 cells + ;
  731: : >line 5 cells + ;
  732: 
  733: : refered ( ghost tag -- )
  734: \G creates a resolve structure
  735:   swap >r here r@ >link @ , r@ >link ! ( tag ) ,
  736:   T here aligned H , r> drop  last-header-ghost @ , 
  737:   loadfile , sourceline# , 
  738:   ;
  739: 
  740: Defer resolve-warning
  741: 
  742: : reswarn-test ( ghost res-struct -- ghost res-struct )
  743:   over cr ." Resolving " >ghostname type dup ."  in " >ghost @ >ghostname type ;
  744: 
  745: : reswarn-forward ( ghost res-struct -- ghost res-struct )
  746:   over warnhead >ghostname type dup ."  is referenced in " 
  747:   >ghost @ >ghostname type ;
  748: 
  749: \ ' reswarn-test IS resolve-warning
  750:  
  751: \ resolve                                              14oct92py
  752: 
  753:  : resolve-loop ( ghost tcfa -- ghost tcfa )
  754:   >r dup >link
  755:   BEGIN @ dup WHILE 
  756: 	resolve-warning 
  757: 	r@ over >taddr @ 
  758: 	2 pick >tag @
  759: 	IF	addr-resolve
  760: 	ELSE	colon-resolve
  761: 	THEN
  762:   REPEAT drop r> ;
  763: 
  764: \ : resolve-loop ( ghost tcfa -- ghost tcfa )
  765: \  >r dup >link @
  766: \  BEGIN  dup  WHILE  dup T @ H r@ rot T ! H REPEAT  drop r> ;
  767: 
  768: \ exists                                                9may93jaw
  769: 
  770: Variable TWarnings
  771: TWarnings on
  772: Variable Exists-Warnings
  773: Exists-Warnings on
  774: 
  775: : exists ( ghost tcfa -- )
  776:   over GhostNames
  777:   BEGIN @ dup
  778:   WHILE 2dup cell+ @ =
  779:   UNTIL
  780:         2 cells + count
  781:         TWarnings @ Exists-Warnings @ and
  782:         IF warnhead type ."  exists"
  783:         ELSE 2drop THEN
  784:         drop swap >link !
  785:   ELSE  true abort" CROSS: Ghostnames inconsistent "
  786:   THEN ;
  787: 
  788: : resolve  ( ghost tcfa -- )
  789: \ resolve referencies to ghost with tcfa
  790:   over forward? 0= IF  exists EXIT THEN
  791:   resolve-loop  over >link ! <res> swap >magic ! 
  792:   ['] noop IS resolve-warning 
  793:   ;
  794: 
  795: \ gexecute ghost,                                      01nov92py
  796: 
  797: : is-forward   ( ghost -- )
  798: \  >link dup @ there rot !  T  A,  H ;
  799:   0 refered  -1 colon, ;
  800: 
  801: : is-resolved   ( ghost -- )
  802:   >link @ colon, ; \ compile-call
  803: 
  804: : gexecute   ( ghost -- )
  805:   dup @ <fwd> = IF  is-forward  ELSE  is-resolved  THEN ;
  806: 
  807: : addr,  ( ghost -- )
  808:   dup @ <fwd> = IF  1 refered 0 T a, H ELSE >link @ T a, H THEN ;
  809: 
  810: \ !! : ghost,     ghost  gexecute ;
  811: 
  812: \ .unresolved                                          11may93jaw
  813: 
  814: variable ResolveFlag
  815: 
  816: \ ?touched                                             11may93jaw
  817: 
  818: : ?touched ( ghost -- flag ) dup forward? swap >link @
  819:                                0 <> and ;
  820: 
  821: : .forwarddefs ( ghost -- )
  822: 	."  appeared in:"
  823: 	>link
  824: 	BEGIN	@ dup
  825: 	WHILE	cr 5 spaces
  826: 		dup >ghost @ >ghostname type
  827: 		."  file " dup >file @ ?dup IF count type ELSE ." CON" THEN
  828: 		."  line " dup >line @ .dec
  829: 	REPEAT 
  830: 	drop ;
  831: 
  832: : ?resolved  ( ghostname -- )
  833:   dup cell+ @ ?touched
  834:   IF  	dup 
  835: 	cell+ cell+ count cr type ResolveFlag on 
  836: 	cell+ @ .forwarddefs
  837:   ELSE 	drop 
  838:   THEN ;
  839: 
  840: >MINIMAL
  841: : .unresolved  ( -- )
  842:   ResolveFlag off cr ." Unresolved: "
  843:   Ghostnames
  844:   BEGIN @ dup
  845:   WHILE dup ?resolved
  846:   REPEAT drop ResolveFlag @
  847:   IF
  848:       -1 abort" Unresolved words!"
  849:   ELSE
  850:       ." Nothing!"
  851:   THEN
  852:   cr ;
  853: 
  854: : .stats
  855:   base @ >r decimal
  856:   cr ." named Headers: " headers-named @ . 
  857:   r> base ! ;
  858: 
  859: >CROSS
  860: \ Header states                                        12dec92py
  861: 
  862: : flag! ( 8b -- )   tlast @ dup >r T c@ xor r> c! H ;
  863: 
  864: VARIABLE ^imm
  865: 
  866: >TARGET
  867: : immediate     40 flag!
  868:                 ^imm @ @ dup <imm> = IF  drop  EXIT  THEN
  869:                 <res> <> ABORT" CROSS: Cannot immediate a unresolved word"
  870:                 <imm> ^imm @ ! ;
  871: : restrict      20 flag! ;
  872: 
  873: : isdoer	<do:> last-header-ghost @ >magic ! ;
  874: >CROSS
  875: 
  876: \ ALIAS2 ansforth conform alias                          9may93jaw
  877: 
  878: : ALIAS2 create here 0 , DOES> @ execute ;
  879: \ usage:
  880: \ ' <name> alias2 bla !
  881: 
  882: \ Target Header Creation                               01nov92py
  883: 
  884: >TARGET
  885: : string,  ( addr count -- )
  886:   dup T c, H bounds  ?DO  I c@ T c, H  LOOP ; 
  887: : name,  ( "name" -- )  bl word count T string, cfalign H ;
  888: : view,   ( -- ) ( dummy ) ;
  889: >CROSS
  890: 
  891: \ Target Document Creation (goes to crossdoc.fd)       05jul95py
  892: 
  893: s" doc/crossdoc.fd" r/w create-file throw value doc-file-id
  894: \ contains the file-id of the documentation file
  895: 
  896: : T-\G ( -- )
  897:     source >in @ /string doc-file-id write-line throw
  898:     postpone \ ;
  899: 
  900: Variable to-doc  to-doc on
  901: 
  902: : cross-doc-entry  ( -- )
  903:     to-doc @ tlast @ 0<> and	\ not an anonymous (i.e. noname) header
  904:     IF
  905: 	s" " doc-file-id write-line throw
  906: 	s" make-doc " doc-file-id write-file throw
  907: 	tlast @ >image count $1F and doc-file-id write-file throw
  908: 	>in @
  909: 	[char] ( parse 2drop
  910: 	[char] ) parse doc-file-id write-file throw
  911: 	s"  )" doc-file-id write-file throw
  912: 	[char] \ parse 2drop					
  913: 	T-\G
  914: 	>in !
  915:     THEN ;
  916: 
  917: \ Target TAGS creation
  918: 
  919: s" kernel.TAGS" r/w create-file throw value tag-file-id
  920: \ contains the file-id of the tags file
  921: 
  922: Create tag-beg 2 c,  7F c, bl c,
  923: Create tag-end 2 c,  bl c, 01 c,
  924: Create tag-bof 1 c,  0C c,
  925: 
  926: 2variable last-loadfilename 0 0 last-loadfilename 2!
  927: 	    
  928: : put-load-file-name ( -- )
  929:     loadfilename 2@ last-loadfilename 2@ d<>
  930:     IF
  931: 	tag-bof count tag-file-id write-line throw
  932: 	sourcefilename 2dup
  933: 	tag-file-id write-file throw
  934: 	last-loadfilename 2!
  935: 	s" ,0" tag-file-id write-line throw
  936:     THEN ;
  937: 
  938: : cross-tag-entry  ( -- )
  939:     tlast @ 0<>	\ not an anonymous (i.e. noname) header
  940:     IF
  941: 	put-load-file-name
  942: 	source >in @ min tag-file-id write-file throw
  943: 	tag-beg count tag-file-id write-file throw
  944: 	tlast @ >image count $1F and tag-file-id write-file throw
  945: 	tag-end count tag-file-id write-file throw
  946: 	base @ decimal sourceline# 0 <# #s #> tag-file-id write-file throw
  947: \	>in @ 0 <# #s [char] , hold #> tag-file-id write-line throw
  948: 	s" ,0" tag-file-id write-line throw
  949: 	base !
  950:     THEN ;
  951: 
  952: \ Check for words
  953: 
  954: Defer skip? ' false IS skip?
  955: 
  956: : defined? ( -- flag ) \ name
  957:     ghost forward? 0= ;
  958: 
  959: : needed? ( -- flag ) \ name
  960: \G returns a false flag when
  961: \G a word is not defined
  962: \G a forward reference exists
  963: \G so the definition is not skipped!
  964:     bl word gfind
  965:     IF dup forward?
  966: 	nip
  967: 	0=
  968:     ELSE  drop true  THEN ;
  969: 
  970: : doer? ( -- flag ) \ name
  971:     ghost >magic @ <do:> = ;
  972: 
  973: : skip-defs ( -- )
  974:     BEGIN  refill  WHILE  source -trailing nip 0= UNTIL  THEN ;
  975: 
  976: \ Target header creation
  977: 
  978: 
  979: VARIABLE CreateFlag CreateFlag off
  980: 
  981: : 0.r ( n1 n2 -- ) 0 swap <# 0 ?DO # LOOP #> type ;
  982: : .sym
  983:   bounds 
  984:   DO I c@ dup
  985: 	CASE	'/ OF drop ." \/" ENDOF
  986: 		'\ OF drop ." \\" ENDOF
  987: 		dup OF emit ENDOF
  988: 	ENDCASE
  989:   LOOP ;
  990: 
  991: : (Theader ( "name" -- ghost )
  992: \  >in @ bl word count type 2 spaces >in !
  993: \ wordheaders will always be compiled to rom
  994:   switchrom
  995:   T align H view,
  996:   tlast @ dup 0> IF  T 1 cells - THEN  A, H  there tlast !
  997:   1 headers-named +!	\ Statistic
  998:   >in @ T name, H >in ! T here H tlastcfa !
  999:   \ Symbol table
 1000:   \ >in @ cr ." sym:s/CFA=" there 4 0.r ." /"  bl word count .sym ." /g" cr >in !
 1001:   CreateFlag @ IF
 1002:        >in @ alias2 swap >in !         \ create alias in target
 1003:        >in @ ghost swap >in !
 1004:        swap also ghosts ' previous swap !     \ tick ghost and store in alias
 1005:        CreateFlag off
 1006:   ELSE ghost THEN
 1007:   dup Last-Header-Ghost !
 1008:   dup >magic ^imm !     \ a pointer for immediate
 1009:   Already @ IF  dup >end tdoes !
 1010:   ELSE 0 tdoes ! THEN
 1011:   80 flag!
 1012:   cross-doc-entry cross-tag-entry ;
 1013: 
 1014: VARIABLE ;Resolve 1 cells allot
 1015: \ this is the resolver information from ":"
 1016: \ resolving is done by ";"
 1017: 
 1018: : Theader  ( "name" -- ghost )
 1019:   (THeader dup there resolve 0 ;Resolve ! ;
 1020: 
 1021: >TARGET
 1022: : Alias    ( cfa -- ) \ name
 1023:     >in @ skip? IF  2drop  EXIT  THEN  >in !
 1024:     dup 0< s" prims" T $has? H 0= and
 1025:     IF
 1026: 	.sourcepos ." needs prim: " >in @ bl word count type >in ! cr
 1027:     THEN
 1028:     (THeader over resolve T A, H 80 flag! ;
 1029: : Alias:   ( cfa -- ) \ name
 1030:     >in @ skip? IF  2drop  EXIT  THEN  >in !
 1031:     dup 0< s" prims" T $has? H 0= and
 1032:     IF
 1033: 	.sourcepos ." needs doer: " >in @ bl word count type >in ! cr
 1034:     THEN
 1035:     ghost tuck swap resolve <do:> swap >magic ! ;
 1036: >CROSS
 1037: 
 1038: \ Conditionals and Comments                            11may93jaw
 1039: 
 1040: : ;Cond
 1041:   postpone ;
 1042:   swap ! ;  immediate
 1043: 
 1044: : Cond: ( -- ) \ name {code } ;
 1045:   atonce on
 1046:   ghost
 1047:   >exec
 1048:   :NONAME ;
 1049: 
 1050: : restrict? ( -- )
 1051: \ aborts on interprete state - ae
 1052:   state @ 0= ABORT" CROSS: Restricted" ;
 1053: 
 1054: : Comment ( -- )
 1055:   >in @ atonce on ghost swap >in ! ' swap >exec ! ;
 1056: 
 1057: Comment (       Comment \
 1058: 
 1059: \ compile                                              10may93jaw
 1060: 
 1061: : compile  ( -- ) \ name
 1062:   restrict?
 1063:   bl word gfind dup 0= ABORT" CROSS: Can't compile "
 1064:   0> ( immediate? )
 1065:   IF    >exec @ compile,
 1066:   ELSE  postpone literal postpone gexecute  THEN ;
 1067:                                         immediate
 1068: 
 1069: : [G'] 
 1070: \G ticks a ghost and returns its address
 1071:   bl word gfind 0= ABORT" CROSS: Ghost don't exists"
 1072:   state @
 1073:   IF   postpone literal
 1074:   THEN ; immediate
 1075: 
 1076: : ghost>cfa
 1077:   dup forward? ABORT" CROSS: forward " >link @ ;
 1078:                
 1079: >TARGET
 1080: 
 1081: : '  ( -- cfa ) 
 1082: \ returns the target-cfa of a ghost
 1083:   bl word gfind 0= ABORT" CROSS: Ghost don't exists"
 1084:   ghost>cfa ;
 1085: 
 1086: Cond: [']  T ' H alit, ;Cond
 1087: 
 1088: >CROSS
 1089: 
 1090: : [T']
 1091: \ returns the target-cfa of a ghost, or compiles it as literal
 1092:   postpone [G'] state @ IF postpone ghost>cfa ELSE ghost>cfa THEN ; immediate
 1093: 
 1094: \ \ threading modell					13dec92py
 1095: \ modularized						14jun97jaw
 1096: 
 1097: : fillcfa   ( usedcells -- )
 1098:   T cells H xt>body swap - 0 ?DO 0 T c, H LOOP ;
 1099: 
 1100: : (>body)   ( cfa -- pfa ) xt>body + ;		' (>body) T IS >body H
 1101: 
 1102: : (doer,)   ( ghost -- ) ]comp gexecute comp[ 1 fillcfa ;   ' (doer,) IS doer,
 1103: 
 1104: : (docol,)  ( -- ) [G'] :docol doer, ;		' (docol,) IS docol,
 1105: 
 1106: : (doprim,) ( -- )
 1107:   there xt>body + ca>native T a, H 1 fillcfa ;	' (doprim,) IS doprim,
 1108: 
 1109: : (doeshandler,) ( -- ) 
 1110:   T cfalign H compile :doesjump T 0 , H ; 	' (doeshandler,) IS doeshandler,
 1111: 
 1112: : (dodoes,) ( does-action-ghost -- )
 1113:   ]comp [G'] :dodoes gexecute comp[
 1114:   addr,
 1115:   T here H tcell - reloff 2 fillcfa ;		' (dodoes,) IS dodoes,
 1116: 
 1117: : (lit,) ( n -- )   compile lit T  ,  H ;	' (lit,) IS lit,
 1118: 
 1119: : (alit,) ( n -- )  lit, T here cell - H relon ;	' (alit,) IS alit,
 1120: 
 1121: : (fini,)         compile ;s ;                ' (fini,) IS fini,
 1122: 
 1123: [IFUNDEF] (code) 
 1124: Defer (code)
 1125: Defer (end-code)
 1126: [THEN]
 1127: 
 1128: >TARGET
 1129: : Code
 1130:   defempty?
 1131:   (THeader there resolve
 1132:   [ T e? prims H 0= [IF] T e? ITC H [ELSE] true [THEN] ] [IF]
 1133:   doprim, 
 1134:   [THEN]
 1135:   depth (code) ;
 1136: 
 1137: : Code:
 1138:   defempty?
 1139:     ghost dup there ca>native resolve  <do:> swap >magic !
 1140:     depth (code) ;
 1141: 
 1142: : end-code
 1143:     (end-code)
 1144:     depth ?dup IF   1- <> ABORT" CROSS: Stack changed"
 1145:     ELSE true ABORT" CROSS: Stack empty" THEN
 1146:     ;
 1147: 
 1148: Cond: chars ;Cond
 1149: 
 1150: >CROSS
 1151: 
 1152: \ tLiteral                                             12dec92py
 1153: 
 1154: >TARGET
 1155: Cond: \G  T-\G ;Cond
 1156: 
 1157: Cond:  Literal ( n -- )   restrict? lit, ;Cond
 1158: Cond: ALiteral ( n -- )   restrict? alit, ;Cond
 1159: 
 1160: : Char ( "<char>" -- )  bl word char+ c@ ;
 1161: Cond: [Char]   ( "<char>" -- )  restrict? Char  lit, ;Cond
 1162: 
 1163: \ some special literals					27jan97jaw
 1164: 
 1165: \ !! Known Bug: Special Literals and plug-ins work only correct
 1166: \ on 16 and 32 Bit Targets and 32 Bit Hosts!
 1167: 
 1168: Cond: MAXU
 1169:   restrict? 
 1170:   tcell 1 cells u> 
 1171:   IF	compile lit tcell 0 ?DO FF T c, H LOOP 
 1172:   ELSE	$ffffffff lit, THEN
 1173:   ;Cond
 1174: 
 1175: Cond: MINI
 1176:   restrict?
 1177:   tcell 1 cells u>
 1178:   IF	compile lit bigendian 
 1179:   	IF	80 T c, H tcell 1 ?DO 0 T c, H LOOP 
 1180:   	ELSE  	tcell 1 ?DO 0 T c, H LOOP 80 T c, H
 1181:   	THEN
 1182:   ELSE	tcell 2 = IF $8000 ELSE $80000000 THEN lit, THEN
 1183:   ;Cond
 1184:  
 1185: Cond: MAXI
 1186:  restrict?
 1187:  tcell 1 cells u>
 1188:  IF	compile lit bigendian 
 1189: 	IF 	7F T c, H tcell 1 ?DO FF T c, H LOOP
 1190: 	ELSE 	tcell 1 ?DO FF T c, H LOOP 7F T c, H
 1191:  	THEN
 1192:  ELSE	tcell 2 = IF $7fff ELSE $7fffffff THEN lit, THEN
 1193:  ;Cond
 1194: 
 1195: >CROSS
 1196: \ Target compiling loop                                12dec92py
 1197: \ ">tib trick thrown out                               10may93jaw
 1198: \ number? defined at the top                           11may93jaw
 1199: 
 1200: \ compiled word might leave items on stack!
 1201: : tcom ( in name -- )
 1202:   gfind  ?dup  IF    0> IF    nip >exec @ execute
 1203:                         ELSE  nip gexecute  THEN EXIT THEN
 1204:   number? dup  IF    0> IF swap lit,  THEN  lit,  drop
 1205:                ELSE  2drop >in !
 1206:                ghost gexecute THEN  ;
 1207: 
 1208: >TARGET
 1209: \ : ; DOES>                                            13dec92py
 1210: \ ]                                                     9may93py/jaw
 1211: 
 1212: : ] state on
 1213:     BEGIN
 1214:         BEGIN >in @ bl word
 1215:               dup c@ 0= WHILE 2drop refill 0=
 1216:               ABORT" CROSS: End of file while target compiling"
 1217:         REPEAT
 1218:         tcom
 1219:         state @
 1220:         0=
 1221:     UNTIL ;
 1222: 
 1223: \ by the way: defining a second interpreter (a compiler-)loop
 1224: \             is not allowed if a system should be ans conform
 1225: 
 1226: : : ( -- colon-sys ) \ Name
 1227:   defempty?
 1228:   constflag off \ don't let this flag work over colon defs
 1229: 		\ just to go sure nothing unwanted happens
 1230:   >in @ skip? IF  drop skip-defs  EXIT  THEN  >in !
 1231:   (THeader ;Resolve ! there ;Resolve cell+ !
 1232:   docol, ]comp depth T ] H ;
 1233: 
 1234: : :noname ( -- colon-sys )
 1235:   T cfalign H there docol, 0 ;Resolve ! depth T ] H ;
 1236: 
 1237: Cond: EXIT ( -- )  restrict?  compile ;S  ;Cond
 1238: 
 1239: Cond: ?EXIT ( -- ) 1 abort" CROSS: using ?exit" ;Cond
 1240: 
 1241: >CROSS
 1242: : LastXT ;Resolve @ 0= abort" CROSS: no definition for LastXT"
 1243:          ;Resolve cell+ @ ;
 1244: 
 1245: >TARGET
 1246: 
 1247: Cond: recurse ( -- ) Last-Ghost @ gexecute ;Cond
 1248: 
 1249: Cond: ; ( -- ) restrict?
 1250:                depth ?dup IF   1- <> ABORT" CROSS: Stack changed"
 1251:                           ELSE true ABORT" CROSS: Stack empty" THEN
 1252:                fini,
 1253:                comp[
 1254:                state off
 1255:                ;Resolve @
 1256:                IF ;Resolve @ ;Resolve cell+ @ resolve THEN
 1257:                ;Cond
 1258: Cond: [  restrict? state off ;Cond
 1259: 
 1260: >CROSS
 1261: : !does ( does-action -- )
 1262: \ !! zusammenziehen und dodoes, machen!
 1263:     tlastcfa @ dup there >r tdp ! compile :dodoes r> tdp ! T cell+ ! H ;
 1264: \ !! geht so nicht, da dodoes, ghost will!
 1265: \     tlastcfa @ >tempdp dodoes, tempdp> ;
 1266: 
 1267: >TARGET
 1268: Cond: DOES> restrict?
 1269:         compile (does>) doeshandler, 
 1270: 	\ resolve words made by builders
 1271: 	tdoes @ ?dup IF  @ T here H resolve THEN
 1272:         ;Cond
 1273: : DOES> switchrom doeshandler, T here H !does depth T ] H ;
 1274: 
 1275: >CROSS
 1276: \ Creation                                             01nov92py
 1277: 
 1278: \ Builder                                               11may93jaw
 1279: 
 1280: : Builder    ( Create-xt do:-xt "name" -- )
 1281: \ builds up a builder in current vocabulary
 1282: \ create-xt is executed when word is interpreted
 1283: \ do:-xt is executet when the created word from builder is executed
 1284: \ for do:-xt an additional entry after the normal ghost-enrys is used
 1285: 
 1286:   >in @ alias2 swap dup >in ! >r >r
 1287:   Make-Ghost rot swap >exec ! ,
 1288:   r> r> >in !
 1289:   also ghosts ' previous swap ! ;
 1290: \  DOES>  dup >exec @ execute ;
 1291: 
 1292: : gdoes,  ( ghost -- )
 1293: \ makes the codefield for a word that is built
 1294:   >end @ dup forward? 0=
 1295:   IF
 1296: 	dup >magic @ <do:> =
 1297: 	IF  doer, EXIT THEN
 1298:   THEN
 1299: \  compile :dodoes gexecute
 1300: \  T here H tcell - reloff 
 1301:   dodoes,
 1302: ;
 1303: 
 1304: : TCreate ( <name> -- )
 1305:   executed-ghost @
 1306:   CreateFlag on
 1307:   create-forward-warn
 1308:   IF ['] reswarn-forward IS resolve-warning THEN
 1309:   Theader >r dup gdoes,
 1310: \ stores execution symantic in the built word
 1311:   >end @ >exec @ r> >exec ! ;
 1312: 
 1313: : RTCreate ( <name> -- )
 1314: \ creates a new word with code-field in ram
 1315:   executed-ghost @
 1316:   CreateFlag on
 1317:   create-forward-warn
 1318:   IF ['] reswarn-forward IS resolve-warning THEN
 1319:   \ make Alias
 1320:   (THeader there 0 T a, H 80 flag! ( S executed-ghost new-ghost )
 1321:   \ store  poiter to code-field
 1322:   switchram T cfalign H
 1323:   there swap T ! H
 1324:   there tlastcfa ! 
 1325:   dup there resolve 0 ;Resolve !
 1326:   >r dup gdoes,
 1327:   >end @ >exec @ r> >exec ! ;
 1328: 
 1329: : Build:  ( -- [xt] [colon-sys] )
 1330:   :noname postpone TCreate ;
 1331: 
 1332: : BuildSmart:  ( -- [xt] [colon-sys] )
 1333:   :noname
 1334:   [ T has? rom H [IF] ]
 1335:   postpone RTCreate
 1336:   [ [ELSE] ]
 1337:   postpone TCreate 
 1338:   [ [THEN] ] ;
 1339: 
 1340: : gdoes>  ( ghost -- addr flag )
 1341:   executed-ghost @
 1342:   state @ IF  gexecute true EXIT  THEN
 1343:   >link @ T >body H false ;
 1344: 
 1345: \ DO: ;DO                                               11may93jaw
 1346: \ changed to ?EXIT                                      10may93jaw
 1347: 
 1348: : DO:     ( -- addr [xt] [colon-sys] )
 1349:   here ghostheader
 1350:   :noname postpone gdoes> postpone ?EXIT ;
 1351: 
 1352: : by:     ( -- addr [xt] [colon-sys] ) \ name
 1353:   ghost
 1354:   :noname postpone gdoes> postpone ?EXIT ;
 1355: 
 1356: : ;DO ( addr [xt] [colon-sys] -- addr )
 1357:   postpone ;    ( S addr xt )
 1358:   over >exec ! ; immediate
 1359: 
 1360: : by      ( -- addr ) \ Name
 1361:   ghost >end @ ;
 1362: 
 1363: >TARGET
 1364: \ Variables and Constants                              05dec92py
 1365: 
 1366: Build:  ( n -- ) ;
 1367: by: :docon ( ghost -- n ) T @ H ;DO
 1368: Builder (Constant)
 1369: 
 1370: Build:  ( n -- ) T , H ;
 1371: by (Constant)
 1372: Builder Constant
 1373: 
 1374: Build:  ( n -- ) T A, H ;
 1375: by (Constant)
 1376: Builder AConstant
 1377: 
 1378: Build:  ( d -- ) T , , H ;
 1379: DO: ( ghost -- d ) T dup cell+ @ swap @ H ;DO
 1380: Builder 2Constant
 1381: 
 1382: BuildSmart: ;
 1383: by: :dovar ( ghost -- addr ) ;DO
 1384: Builder Create
 1385: 
 1386: T has? rom H [IF]
 1387: Build: ( n -- ) T here 0 , H switchram T align here swap ! 0 , H ( switchrom ) ;
 1388: by (Constant)
 1389: Builder Variable
 1390: [ELSE]
 1391: Build: T 0 , H ;
 1392: by Create
 1393: Builder Variable
 1394: [THEN]
 1395: 
 1396: T has? rom H [IF]
 1397: Build: ( n -- ) T here 0 , H switchram T align here swap ! 0 , H ( switchrom ) ;
 1398: by (Constant)
 1399: Builder AVariable
 1400: [ELSE]
 1401: Build: T 0 A, H ;
 1402: by Create
 1403: Builder AVariable
 1404: [THEN]
 1405: 
 1406: \ User variables                                       04may94py
 1407: 
 1408: >CROSS
 1409: Variable tup  0 tup !
 1410: Variable tudp 0 tudp !
 1411: : u,  ( n -- udp )
 1412:   tup @ tudp @ + T  ! H
 1413:   tudp @ dup T cell+ H tudp ! ;
 1414: : au, ( n -- udp )
 1415:   tup @ tudp @ + T A! H
 1416:   tudp @ dup T cell+ H tudp ! ;
 1417: >TARGET
 1418: 
 1419: Build: T 0 u, , H ;
 1420: by: :douser ( ghost -- up-addr )  T @ H tup @ + ;DO
 1421: Builder User
 1422: 
 1423: Build: T 0 u, , 0 u, drop H ;
 1424: by User
 1425: Builder 2User
 1426: 
 1427: Build: T 0 au, , H ;
 1428: by User
 1429: Builder AUser
 1430: 
 1431: BuildSmart: T , H ;
 1432: by (Constant)
 1433: Builder Value
 1434: 
 1435: BuildSmart: T A, H ;
 1436: by (Constant)
 1437: Builder AValue
 1438: 
 1439: BuildSmart:  ( -- ) [T'] noop T A, H ;
 1440: by: :dodefer ( ghost -- ) ABORT" CROSS: Don't execute" ;DO
 1441: Builder Defer
 1442: 
 1443: BuildSmart:  ( inter comp -- ) swap T immediate A, A, H ;
 1444: DO: ( ghost -- ) ABORT" CROSS: Don't execute" ;DO
 1445: Builder interpret/compile:
 1446: 
 1447: \ Sturctures                                           23feb95py
 1448: 
 1449: >CROSS
 1450: : nalign ( addr1 n -- addr2 )
 1451: \ addr2 is the aligned version of addr1 wrt the alignment size n
 1452:  1- tuck +  swap invert and ;
 1453: >TARGET
 1454: 
 1455: Build: ;
 1456: by: :dofield T @ H + ;DO
 1457: Builder (Field)
 1458: 
 1459: Build: ( align1 offset1 align size "name" --  align2 offset2 )
 1460:     rot dup T , H ( align1 align size offset1 )
 1461:     + >r nalign r> ;
 1462: by (Field)
 1463: Builder Field
 1464: 
 1465: : struct  T 1 chars 0 H ;
 1466: : end-struct  T 2Constant H ;
 1467: 
 1468: : cell% ( n -- size align )
 1469:     T 1 cells H dup ;
 1470: 
 1471: \ ' 2Constant Alias2 end-struct
 1472: \ 0 1 T Chars H 2Constant struct
 1473: 
 1474: 0 [IF]
 1475: 
 1476: \ structural conditionals                              17dec92py
 1477: 
 1478: >CROSS
 1479: : ?struc      ( flag -- )       ABORT" CROSS: unstructured " ;
 1480: : sys?        ( sys -- sys )    dup 0= ?struc ;
 1481: : >mark       ( -- sys )        T here  ( dup ." M" hex. ) 0 , H ;
 1482: 
 1483: : branchoffset ( src dest -- ) - ;
 1484: : >resolve    ( sys -- )        T here ( dup ." >" hex. ) over branchoffset swap ! H ;
 1485: : <resolve    ( sys -- )        T here ( dup ." <" hex. ) branchoffset , H ;
 1486: >TARGET
 1487: 
 1488: \ Structural Conditionals                              12dec92py
 1489: 
 1490: Cond: BUT       restrict? sys? swap ;Cond
 1491: Cond: YET       restrict? sys? dup ;Cond
 1492: 
 1493: >CROSS
 1494: Variable tleavings
 1495: >TARGET
 1496: 
 1497: Cond: DONE   ( addr -- )  restrict? tleavings @
 1498:       BEGIN  2dup u> 0=  WHILE  dup T @ H swap >resolve REPEAT
 1499:       tleavings ! drop ;Cond
 1500: 
 1501: >CROSS
 1502: : (leave  T here H tleavings @ T , H  tleavings ! ;
 1503: >TARGET
 1504: 
 1505: Cond: LEAVE     restrict? compile branch (leave ;Cond
 1506: Cond: ?LEAVE    restrict? compile 0=  compile ?branch (leave  ;Cond
 1507: 
 1508: \ Structural Conditionals                              12dec92py
 1509: 
 1510: Cond: AHEAD     restrict? compile branch >mark ;Cond
 1511: Cond: IF        restrict? compile ?branch >mark ;Cond
 1512: Cond: THEN      restrict? sys? branchto, dup T @ H ?struc >resolve ;Cond
 1513: Cond: ELSE      restrict? sys? compile AHEAD swap compile THEN ;Cond
 1514: 
 1515: Cond: BEGIN     restrict? T branchto, here ( dup ." B" hex. ) H ;Cond
 1516: Cond: WHILE     restrict? sys? compile IF swap ;Cond
 1517: Cond: AGAIN     restrict? sys? compile branch <resolve ;Cond
 1518: Cond: UNTIL     restrict? sys? compile ?branch <resolve ;Cond
 1519: Cond: REPEAT    restrict? over 0= ?struc compile AGAIN compile THEN ;Cond
 1520: 
 1521: Cond: CASE      restrict? 0 ;Cond
 1522: Cond: OF        restrict? 1+ >r compile over compile =
 1523:                 compile IF compile drop r> ;Cond
 1524: Cond: ENDOF     restrict? >r compile ELSE r> ;Cond
 1525: Cond: ENDCASE   restrict? compile drop 0 ?DO  compile THEN  LOOP ;Cond
 1526: 
 1527: \ Structural Conditionals                              12dec92py
 1528: 
 1529: Cond: DO        restrict? compile (do)   T here H ;Cond
 1530: Cond: ?DO       restrict? compile (?do)  T (leave here H ;Cond
 1531: Cond: FOR       restrict? compile (for)  T here H ;Cond
 1532: 
 1533: >CROSS
 1534: : loop]   dup <resolve tcell - compile DONE compile unloop ;
 1535: >TARGET
 1536: 
 1537: Cond: LOOP      restrict? sys? compile (loop)  loop] ;Cond
 1538: Cond: +LOOP     restrict? sys? compile (+loop) loop] ;Cond
 1539: Cond: NEXT      restrict? sys? compile (next)  loop] ;Cond
 1540: 
 1541: [ELSE]
 1542: 
 1543: \ structural conditionals                              17dec92py
 1544: 
 1545: >CROSS
 1546: : ?struc      ( flag -- )       ABORT" CROSS: unstructured " ;
 1547: : sys?        ( sys -- sys )    dup 0= ?struc ;
 1548: : >mark       ( -- sys )        T here  ( dup ." M" hex. ) 0 , H ;
 1549: 
 1550: : branchoffset ( src dest -- ) - ;
 1551: 
 1552: : >resolve    ( sys -- )        T here ( dup ." >" hex. ) over branchoffset swap ! H ;
 1553: 
 1554: : <resolve    ( sys -- )        T here ( dup ." <" hex. ) branchoffset , H ;
 1555: 
 1556: :noname compile branch T here branchoffset , H ; IS branch,
 1557: :noname compile ?branch T here branchoffset , H ; IS ?branch,
 1558: :noname compile branch T here 0 , H ; IS branchmark,
 1559: :noname compile ?branch T here 0 , H ; IS  ?branchmark,
 1560: :noname dup T @ H ?struc T here over branchoffset swap ! H ; IS branchtoresolve,
 1561: :noname branchto, T here H ; IS branchtomark,
 1562: 
 1563: >TARGET
 1564: 
 1565: \ Structural Conditionals                              12dec92py
 1566: 
 1567: Cond: BUT       restrict? sys? swap ;Cond
 1568: Cond: YET       restrict? sys? dup ;Cond
 1569: 
 1570: 1 [IF]
 1571: >CROSS
 1572: Variable tleavings
 1573: >TARGET
 1574: 
 1575: Cond: DONE   ( addr -- )  restrict? tleavings @
 1576:       BEGIN  2dup u> 0=  WHILE  dup T @ H swap >resolve REPEAT
 1577:       tleavings ! drop ;Cond
 1578: 
 1579: >CROSS
 1580: : (leave  T here H tleavings @ T , H  tleavings ! ;
 1581: >TARGET
 1582: 
 1583: Cond: LEAVE     restrict? compile branch (leave ;Cond
 1584: Cond: ?LEAVE    restrict? compile 0=  compile ?branch (leave  ;Cond
 1585: 
 1586: [ELSE]
 1587:     \ !! This is WIP
 1588:     \ The problem is (?DO)!
 1589:     \ perhaps we need a plug-in for (?DO)
 1590:     
 1591: >CROSS
 1592: Variable tleavings 0 tleavings !
 1593: >TARGET
 1594: 
 1595: Cond: DONE   ( addr -- )  
 1596:       restrict? tleavings @
 1597:       BEGIN  dup
 1598:       WHILE  >r dup r@ cell+ @ \ address of branch
 1599: 	     u> 0=	   \ lower than DO?	
 1600:       WHILE  r@ 2 cells + @ \ branch token
 1601: 	     branchtoresolve,
 1602: 	     r@ @ r> free throw
 1603:       REPEAT drop r>
 1604:       THEN
 1605:       tleavings ! drop ;Cond
 1606: 
 1607: >CROSS
 1608: : (leave ( branchtoken -- )
 1609:     3 cells allocate throw >r
 1610:     T here H r@ cell+ !
 1611:     r@ 2 cells + !
 1612:     tleavings @ r@ !
 1613:     r> tleavings ! ;
 1614: >TARGET
 1615: 
 1616: Cond: LEAVE     restrict? branchmark, (leave ;Cond
 1617: Cond: ?LEAVE    restrict? compile 0=  ?branchmark, (leave  ;Cond
 1618: 
 1619: [THEN]
 1620: 
 1621: \ Structural Conditionals                              12dec92py
 1622: 
 1623: >TARGET
 1624: Cond: AHEAD     restrict? branchmark, ;Cond
 1625: Cond: IF        restrict? ?branchmark, ;Cond
 1626: Cond: THEN      restrict? sys? branchto, branchtoresolve, ;Cond
 1627: Cond: ELSE      restrict? sys? compile AHEAD swap compile THEN ;Cond
 1628: 
 1629: Cond: BEGIN     restrict? branchtomark, ;Cond
 1630: Cond: WHILE     restrict? sys? compile IF swap ;Cond
 1631: Cond: AGAIN     restrict? sys? branch, ;Cond
 1632: Cond: UNTIL     restrict? sys? ?branch, ;Cond
 1633: Cond: REPEAT    restrict? over 0= ?struc compile AGAIN compile THEN ;Cond
 1634: 
 1635: Cond: CASE      restrict? 0 ;Cond
 1636: Cond: OF        restrict? 1+ >r compile over compile =
 1637:                 compile IF compile drop r> ;Cond
 1638: Cond: ENDOF     restrict? >r compile ELSE r> ;Cond
 1639: Cond: ENDCASE   restrict? compile drop 0 ?DO  compile THEN  LOOP ;Cond
 1640: 
 1641: \ Structural Conditionals                              12dec92py
 1642: 
 1643: Cond: DO        restrict? compile (do)   T here H ;Cond
 1644: Cond: ?DO       restrict? compile (?do)  T (leave here H ;Cond
 1645: Cond: FOR       restrict? compile (for)  T here H ;Cond
 1646: 
 1647: >CROSS
 1648: : loop]   branchto, dup <resolve tcell - compile DONE compile unloop ;
 1649: >TARGET
 1650: 
 1651: Cond: LOOP      restrict? sys? compile (loop)  loop] ;Cond
 1652: Cond: +LOOP     restrict? sys? compile (+loop) loop] ;Cond
 1653: Cond: NEXT      restrict? sys? compile (next)  loop] ;Cond
 1654: 
 1655: [THEN]
 1656: 
 1657: \ String words                                         23feb93py
 1658: 
 1659: : ,"            [char] " parse T string, align H ;
 1660: 
 1661: Cond: ."        restrict? compile (.")     T ," H ;Cond
 1662: Cond: S"        restrict? compile (S")     T ," H ;Cond
 1663: Cond: ABORT"    restrict? compile (ABORT") T ," H ;Cond
 1664: 
 1665: Cond: IS        T ' >body H compile ALiteral compile ! ;Cond
 1666: : IS            T ' >body ! H ;
 1667: Cond: TO        T ' >body H compile ALiteral compile ! ;Cond
 1668: : TO            T ' >body ! H ;
 1669: 
 1670: Cond: defers	T ' >body @ compile, H ;Cond
 1671: : on		T -1 swap ! H ; 
 1672: : off   	T 0 swap ! H ;
 1673: 
 1674: \ LINKED ERR" ENV" 2ENV"                                18may93jaw
 1675: 
 1676: \ linked list primitive
 1677: : linked        T here over @ A, swap ! H ;
 1678: : chained	T linked A, H ;
 1679: 
 1680: : err"   s" ErrLink linked" evaluate T , H
 1681:          [char] " parse T string, align H ;
 1682: 
 1683: : env"  [char] " parse s" EnvLink linked" evaluate
 1684:         T string, align , H ;
 1685: 
 1686: : 2env" [char] " parse s" EnvLink linked" evaluate
 1687:         here >r T string, align , , H
 1688:         r> dup T c@ H 80 and swap T c! H ;
 1689: 
 1690: \ compile must be last                                 22feb93py
 1691: 
 1692: Cond: compile ( -- ) restrict? \ name
 1693:       bl word gfind dup 0= ABORT" CROSS: Can't compile"
 1694:       0> IF    gexecute
 1695:          ELSE  dup >magic @ <imm> =
 1696:                IF   gexecute
 1697:                ELSE compile (compile) gexecute THEN THEN ;Cond
 1698: 
 1699: Cond: postpone ( -- ) restrict? \ name
 1700:       bl word gfind dup 0= ABORT" CROSS: Can't compile"
 1701:       0> IF    gexecute
 1702:          ELSE  dup >magic @ <imm> =
 1703:                IF   gexecute
 1704:                ELSE compile (compile) gexecute THEN THEN ;Cond
 1705: 
 1706: >MINIMAL
 1707: also minimal
 1708: \ Usefull words                                        13feb93py
 1709: 
 1710: : KB  400 * ;
 1711: 
 1712: \ define new [IFDEF] and [IFUNDEF]                      20may93jaw
 1713: 
 1714: : defined? defined? ;
 1715: : needed? needed? ;
 1716: : doer? doer? ;
 1717: 
 1718: \ we want to use IFDEF on compiler directives (e.g. E?) in the source, too
 1719: 
 1720: : directive? 
 1721:   bl word count [ ' target >wordlist ] aliteral search-wordlist 
 1722:   dup IF nip THEN ;
 1723: 
 1724: : [IFDEF]  >in @ directive? swap >in !
 1725: 	   0= IF defined? ELSE name 2drop true THEN
 1726: 	   postpone [IF] ;
 1727: 
 1728: : [IFUNDEF] defined? 0= postpone [IF] ;
 1729: 
 1730: \ C: \- \+ Conditional Compiling                         09jun93jaw
 1731: 
 1732: : C: >in @ defined? 0=
 1733:      IF    >in ! T : H
 1734:      ELSE drop
 1735:         BEGIN bl word dup c@
 1736:               IF   count comment? s" ;" compare 0= ?EXIT
 1737:               ELSE refill 0= ABORT" CROSS: Out of Input while C:"
 1738:               THEN
 1739:         AGAIN
 1740:      THEN ;
 1741: 
 1742: also minimal
 1743: 
 1744: \G doesn't skip line when bit is set in debugmask
 1745: : \D name evaluate debugmasksource @ and 0= IF postpone \ THEN ;
 1746: 
 1747: \G interprets the line if word is not defined
 1748: : \- defined? IF postpone \ THEN ;
 1749: 
 1750: \G interprets the line if word is defined
 1751: : \+ defined? 0= IF postpone \ THEN ;
 1752: 
 1753: Cond: \- \- ;Cond
 1754: Cond: \+ \+ ;Cond
 1755: Cond: \D \D ;Cond
 1756: 
 1757: : ?? bl word find IF execute ELSE drop 0 THEN ;
 1758: 
 1759: : needed:
 1760: \G defines ghost for words that we want to be compiled
 1761:   BEGIN >in @ bl word c@ WHILE >in ! ghost drop REPEAT drop ;
 1762: 
 1763: : [IF]   postpone [IF] ;
 1764: : [THEN] postpone [THEN] ;
 1765: : [ELSE] postpone [ELSE] ;
 1766: 
 1767: Cond: [IF]      [IF] ;Cond
 1768: Cond: [IFDEF]   [IFDEF] ;Cond
 1769: Cond: [IFUNDEF] [IFUNDEF] ;Cond
 1770: Cond: [THEN]    [THEN] ;Cond
 1771: Cond: [ELSE]    [ELSE] ;Cond
 1772: 
 1773: previous
 1774: 
 1775: \ save-cross                                           17mar93py
 1776: 
 1777: >CROSS
 1778: Create magic  s" Gforth10" here over allot swap move
 1779: 
 1780: char 1 bigendian + tcell + magic 7 + c!
 1781: 
 1782: : save-cross ( "image-name" "binary-name" -- )
 1783:   bl parse ." Saving to " 2dup type cr
 1784:   w/o bin create-file throw >r
 1785:   TNIL IF
 1786:       s" #! "   r@ write-file throw
 1787:       bl parse  r@ write-file throw
 1788:       s"  -i"   r@ write-file throw
 1789:       #lf       r@ emit-file throw
 1790:       r@ dup file-position throw drop 8 mod 8 swap ( file-id limit index )
 1791:       ?do
 1792: 	  bl over emit-file throw
 1793:       loop
 1794:       drop
 1795:       magic 8       r@ write-file throw \ write magic
 1796:   ELSE
 1797:       bl parse 2drop
 1798:   THEN
 1799:   image @ there 
 1800:   r@ write-file throw \ write image
 1801:   TNIL IF
 1802:       bit$  @ there 1- tcell>bit rshift 1+
 1803:                 r@ write-file throw \ write tags
 1804:   THEN
 1805:   r> close-file throw ;
 1806: 
 1807: : save-region ( addr len -- )
 1808:   bl parse w/o bin create-file throw >r
 1809:   swap image @ + swap r@ write-file throw
 1810:   r> close-file throw ;
 1811: 
 1812: \ words that should be in minimal
 1813: 
 1814: create s-buffer 50 chars allot
 1815: 
 1816: >MINIMAL
 1817: also minimal
 1818: 
 1819: bigendian Constant bigendian
 1820: : here there ;
 1821: : >ram >ram ;
 1822: : >rom >rom ;
 1823: : >auto >auto ;
 1824: : >tempdp >tempdp ;
 1825: : tempdp> tempdp> ;
 1826: : const constflag on ;
 1827: : warnings name 3 = 0= twarnings ! drop ;
 1828: 
 1829: 
 1830: : save-cross save-cross ;
 1831: : save-region save-region ;
 1832: : tdump swap >image swap dump ;
 1833: 
 1834: also forth 
 1835: [IFDEF] Label           : Label defempty? Label ; [THEN] 
 1836: [IFDEF] start-macros    : start-macros defempty? start-macros ; [THEN]
 1837: [IFDEF] builttag	: builttag builttag ;	[THEN]
 1838: previous
 1839: 
 1840: : s" [char] " parse s-buffer place s-buffer count ; \ for environment?
 1841: : + + ;
 1842: : 1+ 1 + ;
 1843: : 2+ 2 + ;
 1844: : or or ;
 1845: : 1- 1- ;
 1846: : - - ;
 1847: : and and ;
 1848: : or or ;
 1849: : 2* 2* ;
 1850: : * * ;
 1851: : / / ;
 1852: : dup dup ;
 1853: : over over ;
 1854: : swap swap ;
 1855: : rot rot ;
 1856: : drop drop ;
 1857: : =   = ;
 1858: : 0=   0= ;
 1859: : lshift lshift ;
 1860: : 2/ 2/ ;
 1861: : . . ;
 1862: 
 1863: : all-words    ['] false    IS skip? ;
 1864: : needed-words ['] needed?  IS skip? ;
 1865: : undef-words  ['] defined? IS skip? ;
 1866: 
 1867: : \  postpone \ ;  immediate
 1868: : \G T-\G ; immediate
 1869: : (  postpone ( ;  immediate
 1870: : include bl word count included ;
 1871: : require require ;
 1872: : .( [char] ) parse type ;
 1873: : ." [char] " parse type ;
 1874: : cr cr ;
 1875: 
 1876: : times 0 ?DO dup T c, H LOOP drop ; \ used for space table creation
 1877: only forth also minimal definitions
 1878: 
 1879: \ cross-compiler words
 1880: 
 1881: : decimal       decimal ;
 1882: : hex           hex ;
 1883: 
 1884: : tudp          T tudp H ;
 1885: : tup           T tup H ;
 1886: 
 1887: : doc-off       false T to-doc H ! ;
 1888: : doc-on        true  T to-doc H ! ;
 1889: [IFDEF] dbg : dbg dbg ; [THEN]
 1890: 
 1891: minimal
 1892: 
 1893: \ for debugging...
 1894: : order         order ;
 1895: : hwords         words ;
 1896: : words 	also ghosts words previous ;
 1897: : .s            .s ;
 1898: : bye           bye ;
 1899: 
 1900: \ turnkey direction
 1901: : H forth ; immediate
 1902: : T minimal ; immediate
 1903: : G ghosts ; immediate
 1904: 
 1905: : turnkey  0 set-order also Target definitions
 1906:            also Minimal also ;
 1907: 
 1908: \ these ones are pefered:
 1909: 
 1910: : lock   turnkey ;
 1911: : unlock forth also cross ;
 1912: 
 1913: : [[ also unlock ;
 1914: : ]] previous previous ;
 1915: 
 1916: unlock definitions also minimal
 1917: : lock   lock ;
 1918: lock

FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>