gforth/cross.fs - view

File: [gforth] / gforth / cross.fs
Revision 1.118: download - view: text, annotated - select for diffs
Sat Jan 5 20:16:17 2002 UTC (22 years, 3 months ago) by pazsan
Branches: MAIN
CVS tags: HEAD

Cross compiler changes for mixed threading

1: \ CROSS.FS The Cross-Compiler 06oct92py 2: \ Idea and implementation: Bernd Paysan (py) 3: 4: \ Copyright (C) 1995,1996,1997,1998,1999,2000 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., 59 Temple Place, Suite 330, Boston, MA 02111, USA. 21: 22: 0 23: [IF] 24: 25: ToDo: 26: - Crossdoc destination ./doc/crossdoc.fd makes no sense when 27: cross.fs is used seperately. jaw 28: - Do we need this char translation with >address and in branchoffset? 29: (>body also affected) jaw 30: - MAXU etc. can be done with dlit, 31: 32: [THEN] 33: 34: hex 35: 36: \ debugging for compiling 37: 38: \ print stack at each colon definition 39: \ : : save-input cr bl word count type restore-input throw .s : ; 40: 41: \ print stack at each created word 42: \ : create save-input cr bl word count type restore-input throw .s create ; 43: 44: 45: \ \ ------------- Setup Vocabularies 46: 47: \ Remark: Vocabulary is not ANS, but it should work... 48: 49: Vocabulary Cross 50: Vocabulary Target 51: Vocabulary Ghosts 52: Vocabulary Minimal 53: only Forth also Target also also 54: definitions Forth 55: 56: : T previous Ghosts also Target ; immediate 57: : G Ghosts ; immediate 58: : H previous Forth also Cross ; immediate 59: 60: forth definitions 61: 62: : T previous Ghosts also Target ; immediate 63: : G Ghosts ; immediate 64: 65: 66: : >cross also Cross definitions previous ; 67: : >target also Target definitions previous ; 68: : >minimal also Minimal definitions previous ; 69: 70: H 71: 72: >CROSS 73: 74: \ find out whether we are compiling with gforth 75: 76: : defined? bl word find nip ; 77: defined? emit-file defined? toupper and \ drop 0 78: [IF] 79: \ use this in a gforth system 80: : \GFORTH ; immediate 81: : \ANSI postpone \ ; immediate 82: [ELSE] 83: : \GFORTH postpone \ ; immediate 84: : \ANSI ; immediate 85: [THEN] 86: 87: \ANSI : [IFUNDEF] defined? 0= postpone [IF] ; immediate 88: \ANSI : [IFDEF] defined? postpone [IF] ; immediate 89: 0 \ANSI drop 1 90: [IF] 91: : \G postpone \ ; immediate 92: : rdrop postpone r> postpone drop ; immediate 93: : name bl word count ; 94: : bounds over + swap ; 95: : scan >r BEGIN dup WHILE over c@ r@ <> WHILE 1 /string REPEAT THEN rdrop ; 96: : linked here over @ , swap ! ; 97: : alias create , DOES> @ EXECUTE ; 98: : defer ['] noop alias ; 99: : is state @ 100: IF ' >body postpone literal postpone ! 101: ELSE ' >body ! THEN ; immediate 102: : 0>= 0< 0= ; 103: : d<> rot <> -rot <> or ; 104: : toupper dup [char] a [char] z 1+ within IF [char] A [char] a - + THEN ; 105: Variable ebuf 106: : emit-file ( c fd -- ior ) swap ebuf c! ebuf 1 chars rot write-file ; 107: 0a Constant #lf 108: 0d Constant #cr 109: 110: [IFUNDEF] Warnings Variable Warnings [THEN] 111: 112: \ \ Number parsing 23feb93py 113: 114: \ number? number 23feb93py 115: 116: Variable dpl 117: 118: hex 119: Create bases 10 , 2 , A , 100 , 120: \ 16 2 10 character 121: 122: \ !! protect BASE saving wrapper against exceptions 123: : getbase ( addr u -- addr' u' ) 124: over c@ [char] $ - dup 4 u< 125: IF 126: cells bases + @ base ! 1 /string 127: ELSE 128: drop 129: THEN ; 130: 131: : sign? ( addr u -- addr u flag ) 132: over c@ [char] - = dup >r 133: IF 134: 1 /string 135: THEN 136: r> ; 137: 138: : s>unumber? ( addr u -- ud flag ) 139: over [char] ' = 140: IF \ a ' alone is rather unusual :-) 141: drop char+ c@ 0 true EXIT 142: THEN 143: base @ >r dpl on getbase 144: 0. 2swap 145: BEGIN ( d addr len ) 146: dup >r >number dup 147: WHILE \ there are characters left 148: dup r> - 149: WHILE \ the last >number parsed something 150: dup 1- dpl ! over c@ [char] . = 151: WHILE \ the current char is '.' 152: 1 /string 153: REPEAT THEN \ there are unparseable characters left 154: 2drop false 155: ELSE 156: rdrop 2drop true 157: THEN 158: r> base ! ; 159: 160: \ ouch, this is complicated; there must be a simpler way - anton 161: : s>number? ( addr len -- d f ) 162: \ converts string addr len into d, flag indicates success 163: sign? >r 164: s>unumber? 165: 0= IF 166: rdrop false 167: ELSE \ no characters left, all ok 168: r> 169: IF 170: dnegate 171: THEN 172: true 173: THEN ; 174: 175: : s>number ( addr len -- d ) 176: \ don't use this, there is no way to tell success 177: s>number? drop ; 178: 179: : snumber? ( c-addr u -- 0 / n -1 / d 0> ) 180: s>number? 0= 181: IF 182: 2drop false EXIT 183: THEN 184: dpl @ dup 0< IF 185: nip 186: ELSE 187: 1+ 188: THEN ; 189: 190: : number? ( string -- string 0 / n -1 / d 0> ) 191: dup >r count snumber? dup if 192: rdrop 193: else 194: r> swap 195: then ; 196: 197: : number ( string -- d ) 198: number? ?dup 0= abort" ?" 0< 199: IF 200: s>d 201: THEN ; 202: 203: [THEN] 204: 205: \ this provides assert( and struct stuff 206: \GFORTH [IFUNDEF] assert1( 207: \GFORTH also forth definitions require assert.fs previous 208: \GFORTH [THEN] 209: 210: >CROSS 211: 212: hex \ the defualt base for the cross-compiler is hex !! 213: \ Warnings off 214: 215: \ words that are generaly useful 216: 217: : KB 400 * ; 218: : >wordlist ( vocabulary-xt -- wordlist-struct ) 219: also execute get-order swap >r 1- set-order r> ; 220: 221: : umax 2dup u< IF swap THEN drop ; 222: : umin 2dup u> IF swap THEN drop ; 223: 224: : string, ( c-addr u -- ) 225: \ puts down string as cstring 226: dup c, here swap chars dup allot move ; 227: 228: : ," [char] " parse string, ; 229: 230: : SetValue ( n -- <name> ) 231: \G Same behaviour as "Value" if the <name> is not defined 232: \G Same behaviour as "to" if <name> is defined 233: \G SetValue searches in the current vocabulary 234: save-input bl word >r restore-input throw r> count 235: get-current search-wordlist 236: IF drop >r 237: \ we have to set current to be topmost context wordlist 238: get-order get-order get-current swap 1+ set-order 239: r> ['] to execute 240: set-order 241: ELSE Value THEN ; 242: 243: : DefaultValue ( n -- <name> ) 244: \G Same behaviour as "Value" if the <name> is not defined 245: \G DefaultValue searches in the current vocabulary 246: save-input bl word >r restore-input throw r> count 247: get-current search-wordlist 248: IF bl word drop 2drop ELSE Value THEN ; 249: 250: hex 251: 252: \ 1 Constant Cross-Flag \ to check whether assembler compiler plug-ins are 253: \ for cross-compiling 254: \ No! we use "[IFUNDEF]" there to find out whether we are target compiling!!! 255: 256: : comment? ( c-addr u -- c-addr u ) 257: 2dup s" (" compare 0= 258: IF postpone ( 259: ELSE 2dup s" \" compare 0= IF postpone \ THEN 260: THEN ; 261: 262: : X bl word count [ ' target >wordlist ] Literal search-wordlist 263: IF state @ IF compile, 264: ELSE execute THEN 265: ELSE -1 ABORT" Cross: access method not supported!" 266: THEN ; immediate 267: 268: \ Begin CROSS COMPILER: 269: 270: \ debugging 271: 272: 0 [IF] 273: 274: This implements debugflags for the cross compiler and the compiled 275: images. It works identical to the has-flags in the environment. 276: The debugflags are defined in a vocabluary. If the word exists and 277: its value is true, the flag is switched on. 278: 279: [THEN] 280: 281: >CROSS 282: 283: Vocabulary debugflags \ debug flags for cross 284: also debugflags get-order over 285: Constant debugflags-wl 286: set-order previous 287: 288: : DebugFlag 289: get-current >r debugflags-wl set-current 290: SetValue 291: r> set-current ; 292: 293: : Debug? ( adr u -- flag ) 294: \G return true if debug flag is defined or switched on 295: debugflags-wl search-wordlist 296: IF EXECUTE 297: ELSE false THEN ; 298: 299: : D? ( <name> -- flag ) 300: \G return true if debug flag is defined or switched on 301: \G while compiling we do not return the current value but 302: bl word count debug? ; 303: 304: : [d?] 305: \G compile the value-xt so the debug flag can be switched 306: \G the flag must exist! 307: bl word count debugflags-wl search-wordlist 308: IF compile, 309: ELSE -1 ABORT" unknown debug flag" 310: \ POSTPONE false 311: THEN ; immediate 312: 313: \ \ -------------------- source file 314: 315: decimal 316: 317: Variable cross-file-list 318: 0 cross-file-list ! 319: Variable target-file-list 320: 0 target-file-list ! 321: Variable host-file-list 322: 0 host-file-list ! 323: 324: cross-file-list Value file-list 325: 0 Value source-desc 326: 327: \ file loading 328: 329: : >fl-id 1 cells + ; 330: : >fl-name 2 cells + ; 331: 332: Variable filelist 0 filelist ! 333: Create NoFile ," #load-file#" 334: 335: : loadfile ( -- adr ) 336: source-desc ?dup IF >fl-name ELSE NoFile THEN ; 337: 338: : sourcefilename ( -- adr len ) 339: loadfile count ; 340: 341: \ANSI : sourceline# 0 ; 342: 343: \ \ -------------------- path handling from kernel/paths.fs 344: 345: \ paths.fs path file handling 03may97jaw 346: 347: \ -Changing the search-path: 348: \ fpath+ <path> adds a directory to the searchpath 349: \ fpath= <path>|<path> makes complete now searchpath 350: \ seperator is | 351: \ .fpath displays the search path 352: \ remark I: 353: \ a ./ in the beginning of filename is expanded to the directory the 354: \ current file comes from. ./ can also be included in the search-path! 355: \ ~+/ loads from the current working directory 356: 357: \ remark II: 358: \ if there is no sufficient space for the search path increase it! 359: 360: 361: \ -Creating custom paths: 362: 363: \ It is possible to use the search mechanism on yourself. 364: 365: \ Make a buffer for the path: 366: \ create mypath 100 chars , \ maximum length (is checked) 367: \ 0 , \ real len 368: \ 100 chars allot \ space for path 369: \ use the same functions as above with: 370: \ mypath path+ 371: \ mypath path= 372: \ mypath .path 373: 374: \ do a open with the search path: 375: \ open-path-file ( adr len path -- fd adr len ior ) 376: \ the file is opened read-only; if the file is not found an error is generated 377: 378: \ questions to: wilke@jwdt.com 379: 380: [IFUNDEF] +place 381: : +place ( adr len adr ) 382: 2dup >r >r 383: dup c@ char+ + swap move 384: r> r> dup c@ rot + swap c! ; 385: [THEN] 386: 387: [IFUNDEF] place 388: : place ( c-addr1 u c-addr2 ) 389: 2dup c! char+ swap move ; 390: [THEN] 391: 392: \ if we have path handling, use this and the setup of it 393: [IFUNDEF] open-fpath-file 394: 395: create sourcepath 1024 chars , 0 , 1024 chars allot \ !! make this dynamic 396: sourcepath value fpath 397: 398: : also-path ( adr len path^ -- ) 399: >r 400: \ len check 401: r@ cell+ @ over + r@ @ u> ABORT" path buffer too small!" 402: \ copy into 403: tuck r@ cell+ dup @ cell+ + swap cmove 404: \ make delimiter 405: 0 r@ cell+ dup @ cell+ + 2 pick + c! 1 + r> cell+ +! 406: ; 407: 408: : only-path ( adr len path^ -- ) 409: dup 0 swap cell+ ! also-path ; 410: 411: : path+ ( path-addr "dir" -- ) \ gforth 412: \G Add the directory @var{dir} to the search path @var{path-addr}. 413: name rot also-path ; 414: 415: : fpath+ ( "dir" ) \ gforth 416: \G Add directory @var{dir} to the Forth search path. 417: fpath path+ ; 418: 419: : path= ( path-addr "dir1|dir2|dir3" ) \ gforth 420: \G Make a complete new search path; the path separator is |. 421: name 2dup bounds ?DO i c@ [char] | = IF 0 i c! THEN LOOP 422: rot only-path ; 423: 424: : fpath= ( "dir1|dir2|dir3" ) \ gforth 425: \G Make a complete new Forth search path; the path separator is |. 426: fpath path= ; 427: 428: : path>counted cell+ dup cell+ swap @ ; 429: 430: : next-path ( adr len -- adr2 len2 ) 431: 2dup 0 scan 432: dup 0= IF 2drop 0 -rot 0 -rot EXIT THEN 433: >r 1+ -rot r@ 1- -rot 434: r> - ; 435: 436: : previous-path ( path^ -- ) 437: dup path>counted 438: BEGIN tuck dup WHILE repeat ; 439: 440: : .path ( path-addr -- ) \ gforth 441: \G Display the contents of the search path @var{path-addr}. 442: path>counted 443: BEGIN next-path dup WHILE type space REPEAT 2drop 2drop ; 444: 445: : .fpath ( -- ) \ gforth 446: \G Display the contents of the Forth search path. 447: fpath .path ; 448: 449: : absolut-path? ( addr u -- flag ) \ gforth 450: \G A path is absolute if it starts with a / or a ~ (~ expansion), 451: \G or if it is in the form ./*, extended regexp: ^[/~]|./, or if 452: \G it has a colon as second character ("C:..."). Paths simply 453: \G containing a / are not absolute! 454: 2dup 2 u> swap 1+ c@ [char] : = and >r \ dos absoulte: c:/.... 455: over c@ [char] / = >r 456: over c@ [char] ~ = >r 457: \ 2dup 3 min S" ../" compare 0= r> or >r \ not catered for in expandtopic 458: 2 min S" ./" compare 0= 459: r> r> r> or or or ; 460: 461: Create ofile 0 c, 255 chars allot 462: Create tfile 0 c, 255 chars allot 463: 464: : pathsep? dup [char] / = swap [char] \ = or ; 465: 466: : need/ ofile dup c@ + c@ pathsep? 0= IF s" /" ofile +place THEN ; 467: 468: : extractpath ( adr len -- adr len2 ) 469: BEGIN dup WHILE 1- 470: 2dup + c@ pathsep? IF EXIT THEN 471: REPEAT ; 472: 473: : remove~+ ( -- ) 474: ofile count 3 min s" ~+/" compare 0= 475: IF 476: ofile count 3 /string ofile place 477: THEN ; 478: 479: : expandtopic ( -- ) \ stack effect correct? - anton 480: \ expands "./" into an absolute name 481: ofile count 2 min s" ./" compare 0= 482: IF 483: ofile count 1 /string tfile place 484: 0 ofile c! sourcefilename extractpath ofile place 485: ofile c@ IF need/ THEN 486: tfile count over c@ pathsep? IF 1 /string THEN 487: ofile +place 488: THEN ; 489: 490: : compact.. ( adr len -- adr2 len2 ) 491: \ deletes phrases like "xy/.." out of our directory name 2dec97jaw 492: over swap 493: BEGIN dup WHILE 494: dup >r '/ scan 2dup 4 min s" /../" compare 0= 495: IF 496: dup r> - >r 4 /string over r> + 4 - 497: swap 2dup + >r move dup r> over - 498: ELSE 499: rdrop dup 1 min /string 500: THEN 501: REPEAT drop over - ; 502: 503: : reworkdir ( -- ) 504: remove~+ 505: ofile count compact.. 506: nip ofile c! ; 507: 508: : open-ofile ( -- fid ior ) 509: \G opens the file whose name is in ofile 510: expandtopic reworkdir 511: ofile count r/o open-file ; 512: 513: : check-path ( adr1 len1 adr2 len2 -- fd 0 | 0 <>0 ) 514: 0 ofile ! >r >r ofile place need/ 515: r> r> ofile +place 516: open-ofile ; 517: 518: : open-path-file ( addr1 u1 path-addr -- wfileid addr2 u2 0 | ior ) \ gforth 519: \G Look in path @var{path-addr} for the file specified by @var{addr1 u1}. 520: \G If found, the resulting path and an open file descriptor 521: \G are returned. If the file is not found, @var{ior} is non-zero. 522: >r 523: 2dup absolut-path? 524: IF rdrop 525: ofile place open-ofile 526: dup 0= IF >r ofile count r> THEN EXIT 527: ELSE r> path>counted 528: BEGIN next-path dup 529: WHILE 5 pick 5 pick check-path 530: 0= IF >r 2drop 2drop r> ofile count 0 EXIT ELSE drop THEN 531: REPEAT 532: 2drop 2drop 2drop -38 533: THEN ; 534: 535: : open-fpath-file ( addr1 u1 -- wfileid addr2 u2 0 | ior ) \ gforth 536: \G Look in the Forth search path for the file specified by @var{addr1 u1}. 537: \G If found, the resulting path and an open file descriptor 538: \G are returned. If the file is not found, @var{ior} is non-zero. 539: fpath open-path-file ; 540: 541: fpath= ~+ 542: 543: [THEN] 544: 545: \ \ -------------------- include require 13may99jaw 546: 547: >CROSS 548: 549: : add-included-file ( adr len -- adr ) 550: dup >fl-name char+ allocate throw >r 551: file-list @ r@ ! r@ file-list ! 552: r@ >fl-name place r> ; 553: 554: : included? ( c-addr u -- f ) 555: file-list 556: BEGIN @ dup 557: WHILE >r 2dup r@ >fl-name count compare 0= 558: IF rdrop 2drop true EXIT THEN 559: r> 560: REPEAT 561: 2drop drop false ; 562: 563: false DebugFlag showincludedfiles 564: 565: : included1 ( fd adr u -- ) 566: \ include file adr u / fd 567: \ we don't use fd with include-file, because the forth system 568: \ doesn't know the name of the file to get a nice error report 569: [d?] showincludedfiles 570: IF cr ." Including: " 2dup type ." ..." THEN 571: rot close-file throw 572: source-desc >r 573: add-included-file to source-desc 574: sourcefilename 575: ['] included catch 576: r> to source-desc 577: throw ; 578: 579: : included ( adr len -- ) 580: cross-file-list to file-list 581: open-fpath-file throw 582: included1 ; 583: 584: : required ( adr len -- ) 585: cross-file-list to file-list 586: open-fpath-file throw \ 2dup cr ." R:" type 587: 2dup included? 588: IF 2drop close-file throw 589: ELSE included1 590: THEN ; 591: 592: : include bl word count included ; 593: 594: : require bl word count required ; 595: 596: 0 [IF] 597: 598: also forth definitions previous 599: 600: : included ( adr len -- ) included ; 601: 602: : required ( adr len -- ) required ; 603: 604: : include include ; 605: 606: : require require ; 607: 608: [THEN] 609: 610: >CROSS 611: hex 612: 613: \ \ -------------------- Error Handling 05aug97jaw 614: 615: \ Flags 616: 617: also forth definitions \ these values may be predefined before 618: \ the cross-compiler is loaded 619: 620: false DefaultValue stack-warn \ check on empty stack at any definition 621: false DefaultValue create-forward-warn \ warn on forward declaration of created words 622: 623: previous >CROSS 624: 625: : .dec 626: base @ decimal swap . base ! ; 627: 628: : .sourcepos 629: cr sourcefilename type ." :" 630: sourceline# .dec ; 631: 632: : warnhead 633: \G display error-message head 634: \G perhaps with linenumber and filename 635: .sourcepos ." Warning: " ; 636: 637: : empty? depth IF .sourcepos ." Stack not empty!" THEN ; 638: 639: stack-warn [IF] 640: : defempty? empty? ; 641: [ELSE] 642: : defempty? ; immediate 643: [THEN] 644: 645: \ \ -------------------- Compiler Plug Ins 01aug97jaw 646: 647: >CROSS 648: 649: \ Compiler States 650: 651: Variable comp-state 652: 0 Constant interpreting 653: 1 Constant compiling 654: 2 Constant resolving 655: 3 Constant assembling 656: 657: : compiling? comp-state @ compiling = ; 658: 659: : pi-undefined -1 ABORT" Plugin undefined" ; 660: 661: : Plugin ( -- : pluginname ) 662: Create 663: \ for normal cross-compiling only one action 664: \ exists, this fields are identical. For the instant 665: \ simulation environment we need, two actions for each plugin 666: \ the target one and the one that generates the simulation code 667: ['] pi-undefined , \ action 668: ['] pi-undefined , \ target plugin action 669: 8765 , \ plugin magic 670: DOES> perform ; 671: 672: Plugin DummyPlugin 673: 674: : 'PI ( -- addr : pluginname ) 675: ' >body dup 2 cells + @ 8765 <> ABORT" not a plugin" ; 676: 677: : plugin-of ( xt -- : pluginname ) 678: dup 'PI 2! ; 679: 680: : action-of ( xt -- : plunginname ) 681: 'PI cell+ ! ; 682: 683: : TPA ( -- : plugin ) 684: \ target plugin action 685: \ executes current target action of plugin 686: 'PI cell+ POSTPONE literal POSTPONE perform ; immediate 687: 688: Variable ppi-temp 0 ppi-temp ! 689: 690: : pa: 691: \g define plugin action 692: ppi-temp @ ABORT" pa: definition not closed" 693: 'PI ppi-temp ! :noname ; 694: 695: : ;pa 696: \g end a definition for plugin action 697: POSTPONE ; ppi-temp @ ! 0 ppi-temp ! ; immediate 698: 699: 700: Plugin dlit, ( d -- ) \ compile numerical value the target 701: Plugin lit, ( n -- ) 702: Plugin alit, ( n -- ) 703: 704: Plugin branch, ( target-addr -- ) \ compiles a branch 705: Plugin ?branch, ( target-addr -- ) \ compiles a ?branch 706: Plugin branchmark, ( -- branch-addr ) \ reserves room for a branch 707: Plugin ?branchmark, ( -- branch-addr ) \ reserves room for a ?branch 708: Plugin ?domark, ( -- branch-addr ) \ reserves room for a ?do branch 709: Plugin branchto, ( -- ) \ actual program position is target of a branch (do e.g. alignment) 710: ' NOOP plugin-of branchto, 711: Plugin branchtoresolve, ( branch-addr -- ) \ resolves a forward reference from branchmark 712: Plugin branchtomark, ( -- target-addr ) \ marks a branch destination 713: 714: Plugin colon, ( tcfa -- ) \ compiles call to tcfa at current position 715: Plugin xt, ( tcfa -- ) \ compiles xt 716: Plugin prim, ( tcfa -- ) \ compiles primitive invocation 717: Plugin colonmark, ( -- addr ) \ marks a colon call 718: Plugin colon-resolve ( tcfa addr -- ) 719: 720: Plugin addr-resolve ( target-addr addr -- ) 721: Plugin doer-resolve ( ghost res-pnt target-addr addr -- ghost res-pnt ) 722: 723: Plugin ncontrols? ( [ xn ... x1 ] n -- ) \ checks wheter n control structures are open 724: Plugin if, ( -- if-token ) 725: Plugin else, ( if-token -- if-token ) 726: Plugin then, ( if-token -- ) 727: Plugin ahead, 728: Plugin begin, 729: Plugin while, 730: Plugin until, 731: Plugin again, 732: Plugin repeat, 733: Plugin cs-swap ( x1 x2 -- x2 x1 ) 734: 735: Plugin case, ( -- n ) 736: Plugin of, ( n -- x1 n ) 737: Plugin endof, ( x1 n -- x2 n ) 738: Plugin endcase, ( x1 .. xn n -- ) 739: 740: Plugin do, ( -- do-token ) 741: Plugin ?do, ( -- ?do-token ) 742: Plugin for, ( -- for-token ) 743: Plugin loop, ( do-token / ?do-token -- ) 744: Plugin +loop, ( do-token / ?do-token -- ) 745: Plugin next, ( for-token ) 746: Plugin leave, ( -- ) 747: Plugin ?leave, ( -- ) 748: 749: [IFUNDEF] ca>native 750: Plugin ca>native 751: [THEN] 752: 753: Plugin doprim, \ compiles start of a primitive 754: Plugin docol, \ compiles start of a colon definition 755: Plugin doer, 756: Plugin fini, \ compiles end of definition ;s 757: Plugin doeshandler, 758: Plugin dodoes, 759: 760: Plugin colon-start 761: ' noop plugin-of colon-start 762: Plugin colon-end 763: ' noop plugin-of colon-end 764: 765: Plugin ]comp \ starts compilation 766: ' noop plugin-of ]comp 767: Plugin comp[ \ ends compilation 768: ' noop plugin-of comp[ 769: 770: Plugin t>body \ we need the system >body 771: \ and the target >body 772: 773: >TARGET 774: : >body t>body ; 775: 776: 777: \ Ghost Builder 06oct92py 778: 779: >CROSS 780: hex 781: \ Values for ghost magic 782: 4711 Constant <fwd> 4712 Constant <res> 783: 4713 Constant <imm> 4714 Constant <do:> 784: 4715 Constant <skip> 785: 786: \ Bitmask for ghost flags 787: 1 Constant <unique> 788: 2 Constant <primitive> 789: 790: \ FXIME: move this to general stuff? 791: : set-flag ( addr flag -- ) 792: over @ or swap ! ; 793: 794: : reset-flag ( addr flag -- ) 795: invert over @ and swap ! ; 796: 797: : get-flag ( addr flag -- f ) 798: swap @ and 0<> ; 799: 800: 801: Struct 802: 803: \ link to next ghost (always the first element) 804: cell% field >next-ghost 805: 806: \ type of ghost 807: cell% field >magic 808: 809: \ pointer where ghost is in target, or if unresolved 810: \ points to the where we have to resolve (linked-list) 811: cell% field >link 812: 813: \ execution semantics (while target compiling) of ghost 814: cell% field >exec 815: 816: \ compilation action of this ghost; this is what is 817: \ done to compile a call (or whatever) to this definition. 818: \ E.g. >comp contains the semantic of postpone s" 819: \ whereas >exec-compile contains the semantic of s" 820: cell% field >comp 821: 822: \ Compilation sematics (while parsing) of this ghost. E.g. 823: \ "\" will skip the rest of line. 824: \ These semantics are defined by Cond: and 825: \ if a word is made immediate in instant, then the >exec2 field 826: \ gets copied to here 827: cell% field >exec-compile 828: 829: \ Additional execution semantics of this ghost. This is used 830: \ for code generated by instant and for the doer-xt of created 831: \ words 832: cell% field >exec2 833: 834: cell% field >created 835: 836: \ the xt of the created ghost word itself 837: cell% field >ghost-xt 838: 839: \ pointer to the counted string of the assiciated 840: \ assembler label 841: cell% field >asm-name 842: 843: \ mapped primitives have a special address, so 844: \ we are able to detect them 845: cell% field >asm-dummyaddr 846: 847: \ for builder (create, variable...) words 848: \ the execution symantics of words built are placed here 849: \ this is a doer ghost or a dummy ghost 850: cell% field >do:ghost 851: 852: cell% field >ghost-flags 853: 854: cell% field >ghost-name 855: 856: End-Struct ghost-struct 857: 858: Variable ghost-list 859: 0 ghost-list ! 860: 861: Variable executed-ghost \ last executed ghost, needed in tcreate and gdoes> 862: \ Variable last-ghost \ last ghost that is created 863: Variable last-header-ghost \ last ghost definitions with header 864: 865: \ space for ghosts resolve structure 866: \ we create ghosts in a sepearte space 867: \ and not to the current host dp, because this 868: \ gives trouble with instant while compiling and creating 869: \ a ghost for a forward reference 870: \ BTW: we cannot allocate another memory region 871: \ because allot will check the overflow!! 872: Variable cross-space-dp 873: Create cross-space 250000 allot here 100 allot align 874: Constant cross-space-end 875: cross-space cross-space-dp ! 876: Variable cross-space-dp-orig 877: 878: : cross-space-used cross-space-dp @ cross-space - ; 879: 880: : >space ( -- ) 881: dp @ cross-space-dp-orig ! 882: cross-space-dp @ dp ! ; 883: 884: : space> ( -- ) 885: dp @ dup cross-space-dp ! 886: cross-space-end u> ABORT" CROSS: cross-space overflow" 887: cross-space-dp-orig @ dp ! ; 888: 889: \ this is just for debugging, to see this in the backtrace 890: : execute-exec execute ; 891: : execute-exec2 execute ; 892: : execute-exec-compile execute ; 893: 894: : NoExec 895: executed-ghost @ >exec2 @ 896: ?dup 897: IF execute-exec2 898: ELSE true ABORT" CROSS: Don't execute ghost, or immediate target word" 899: THEN ; 900: 901: Defer is-forward 902: Defer do-refered 903: 904: : prim-forward ( ghost -- ) 905: colonmark, 1 do-refered ; \ compile space for call 906: ' prim-forward IS is-forward 907: 908: : (ghostheader) ( -- ) 909: ghost-list linked <fwd> , 0 , ['] NoExec , what's is-forward , 910: 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , ; 911: 912: : ghostheader ( -- ) (ghostheader) 0 , ; 913: 914: ' Ghosts >wordlist Constant ghosts-wordlist 915: 916: \ the current wordlist for ghost definitions in the host 917: ghosts-wordlist Value current-ghosts 918: 919: : Make-Ghost ( "name" -- ghost ) 920: >space 921: \ save current and create in ghost vocabulary 922: get-current >r current-ghosts set-current 923: >in @ Create >in ! 924: \ some forth systems like iForth need the immediate directly 925: \ after the word is created 926: \ restore current 927: r> set-current 928: here (ghostheader) 929: bl word count string, align 930: space> 931: \ set ghost-xt field by doing a search 932: dup >ghost-name count 933: current-ghosts search-wordlist 934: 0= ABORT" CROSS: Just created, must be there!" 935: over >ghost-xt ! 936: DOES> 937: dup executed-ghost ! 938: >exec @ execute-exec ; 939: 940: \ ghost words 14oct92py 941: \ changed: 10may93py/jaw 942: 943: Defer search-ghosts 944: 945: : (search-ghosts) ( adr len -- cfa true | 0 ) 946: current-ghosts search-wordlist ; 947: 948: ' (search-ghosts) IS search-ghosts 949: 950: : gsearch ( addr len -- ghost true | 0 ) 951: search-ghosts 952: dup IF swap >body swap THEN ; 953: 954: : gfind ( string -- ghost true / string false ) 955: \ searches for string in word-list ghosts 956: \ dup count type space 957: dup >r count gsearch 958: dup IF rdrop ELSE r> swap THEN ; 959: 960: : gdiscover ( xt -- ghost true | xt false ) 961: >r ghost-list 962: BEGIN @ dup 963: WHILE dup >magic @ <fwd> <> 964: IF dup >link @ r@ = 965: IF rdrop true EXIT THEN 966: THEN 967: REPEAT 968: drop r> false ; 969: 970: : xt>ghost ( xt -- ghost ) 971: gdiscover 0= ABORT" CROSS: ghost not found for this xt" ; 972: 973: : Ghost ( "name" -- ghost ) 974: >in @ bl word gfind IF nip EXIT THEN 975: drop >in ! Make-Ghost ; 976: 977: : >ghostname ( ghost -- adr len ) 978: >ghost-name count ; 979: 980: : forward? ( ghost -- flag ) 981: >magic @ <fwd> = ; 982: 983: : undefined? ( ghost -- flag ) 984: >magic @ dup <fwd> = swap <skip> = or ; 985: 986: : immediate? ( ghost -- flag ) 987: >magic @ <imm> = ; 988: 989: Variable TWarnings 990: TWarnings on 991: Variable Exists-Warnings 992: Exists-Warnings on 993: 994: : exists-warning ( ghost -- ghost ) 995: TWarnings @ Exists-Warnings @ and 996: IF dup >ghostname warnhead type ." exists " THEN ; 997: 998: \ : HeaderGhost Ghost ; 999: 1000: Variable reuse-ghosts reuse-ghosts off 1001: 1002: : HeaderGhost ( "name" -- ghost ) 1003: >in @ 1004: bl word count 1005: \ 2dup type space 1006: current-ghosts search-wordlist 1007: IF >body dup undefined? reuse-ghosts @ or 1008: IF nip EXIT 1009: ELSE exists-warning 1010: THEN 1011: drop >in ! 1012: ELSE >in ! 1013: THEN 1014: \ we keep the execution semantics of the prviously 1015: \ defined words, this is a workaround 1016: \ for the redefined \ until vocs work 1017: Make-Ghost ; 1018: 1019: : .ghost ( ghost -- ) >ghostname type ; 1020: 1021: \ ' >ghostname ALIAS @name 1022: 1023: : findghost ( "ghostname" -- ghost ) 1024: bl word gfind 0= ABORT" CROSS: Ghost don't exists" ; 1025: 1026: : [G'] ( -- ghost : name ) 1027: \G ticks a ghost and returns its address 1028: findghost 1029: state @ IF postpone literal THEN ; immediate 1030: 1031: : g>xt ( ghost -- xt ) 1032: \G Returns the xt (cfa) of a ghost. Issues a warning if undefined. 1033: dup undefined? ABORT" CROSS: forward " >link @ ; 1034: 1035: : g>body ( ghost -- body ) 1036: \G Returns the body-address (pfa) of a ghost. 1037: \G Issues a warning if undefined (a forward-reference). 1038: g>xt X >body ; 1039: 1040: 1 Constant <label> 1041: 1042: Struct 1043: \ bitmask of address type (not used for now) 1044: cell% field addr-type 1045: \ if this address is an xt, this field points to the ghost 1046: cell% field addr-xt-ghost 1047: \ a bit mask that tells as what part of the cell 1048: \ is refenced from an address pointer, used for assembler generation 1049: cell% field addr-refs 1050: End-Struct addr-struct 1051: 1052: : %allocerase ( align size -- addr ) 1053: dup >r %alloc dup r> erase ; 1054: 1055: \ returns the addr struct, define it if 0 reference 1056: : define-addr-struct ( addr -- struct-addr ) 1057: dup @ ?dup IF nip EXIT THEN 1058: addr-struct %allocerase tuck swap ! ; 1059: 1060: >cross 1061: 1062: \ Predefined ghosts 12dec92py 1063: 1064: Ghost - drop \ need a ghost otherwise "-" would be treated as a number 1065: 1066: Ghost 0= drop 1067: Ghost branch Ghost ?branch 2drop 1068: Ghost unloop Ghost ;S 2drop 1069: Ghost lit Ghost ! 2drop 1070: Ghost noop drop 1071: Ghost :docol Ghost :doesjump Ghost :dodoes 2drop drop 1072: Ghost :dovar drop 1073: Ghost over Ghost = Ghost drop 2drop drop 1074: Ghost 2drop drop 1075: Ghost 2dup drop 1076: Ghost call drop 1077: Ghost @ drop 1078: Ghost useraddr drop 1079: Ghost execute drop 1080: Ghost + drop 1081: Ghost decimal drop 1082: Ghost hex drop 1083: Ghost lit@ drop 1084: Ghost lit-perform drop 1085: Ghost lit+ drop 1086: Ghost does-exec drop 1087: 1088: \ \ Parameter for target systems 06oct92py 1089: 1090: 1091: \ we define it ans like... 1092: wordlist Constant target-environment 1093: 1094: \ save information of current dictionary to restore with environ> 1095: Variable env-current 1096: 1097: : >ENVIRON get-current env-current ! target-environment set-current ; 1098: : ENVIRON> env-current @ set-current ; 1099: 1100: >TARGET 1101: 1102: : environment? ( addr len -- [ x ] true | false ) 1103: \G returns the content of environment variable and true or 1104: \G false if not present 1105: target-environment search-wordlist 1106: IF EXECUTE true ELSE false THEN ; 1107: 1108: : $has? ( addr len -- x | false ) 1109: \G returns the content of environment variable 1110: \G or false if not present 1111: T environment? H dup IF drop THEN ; 1112: 1113: : e? ( "name" -- x ) 1114: \G returns the content of environment variable. 1115: \G The variable is expected to exist. If not, issue an error. 1116: bl word count T environment? H 1117: 0= ABORT" environment variable not defined!" ; 1118: 1119: : has? ( "name" --- x | false ) 1120: \G returns the content of environment variable 1121: \G or false if not present 1122: bl word count T $has? H ; 1123: 1124: 1125: >ENVIRON get-order get-current swap 1+ set-order 1126: true SetValue compiler 1127: true SetValue cross 1128: true SetValue standard-threading 1129: >TARGET previous 1130: 1131: 0 1132: [IFDEF] mach-file drop mach-file count 1 [THEN] 1133: [IFDEF] machine-file drop machine-file 1 [THEN] 1134: [IF] included hex 1135: [ELSE] cr ." No machine description!" ABORT 1136: [THEN] 1137: 1138: >ENVIRON 1139: 1140: T has? ec H 1141: [IF] 1142: false DefaultValue relocate 1143: false DefaultValue file 1144: false DefaultValue OS 1145: false DefaultValue prims 1146: false DefaultValue floating 1147: false DefaultValue glocals 1148: false DefaultValue dcomps 1149: false DefaultValue hash 1150: false DefaultValue xconds 1151: false DefaultValue header 1152: false DefaultValue backtrace 1153: false DefaultValue new-input 1154: false DefaultValue peephole 1155: [THEN] 1156: 1157: true DefaultValue interpreter 1158: true DefaultValue ITC 1159: false DefaultValue rom 1160: true DefaultValue standardthreading 1161: 1162: >TARGET 1163: s" relocate" T environment? H 1164: \ JAW why set NIL to this?! 1165: [IF] drop \ SetValue NIL 1166: [ELSE] >ENVIRON X NIL SetValue relocate 1167: [THEN] 1168: >TARGET 1169: 1170: 0 Constant NIL 1171: 1172: >CROSS 1173: 1174: \ \ Create additional parameters 19jan95py 1175: 1176: \ currently cross only works for host machines with address-unit-bits 1177: \ eual to 8 because of s! and sc! 1178: \ but I start to query the environment just to modularize a little bit 1179: 1180: : check-address-unit-bits ( -- ) 1181: \ s" ADDRESS-UNIT-BITS" environment? 1182: \ IF 8 <> ELSE true THEN 1183: \ ABORT" ADDRESS-UNIT-BITS unknown or not equal to 8!" 1184: 1185: \ shit, this doesn't work because environment? is only defined for 1186: \ gforth.fi and not kernl???.fi 1187: ; 1188: 1189: check-address-unit-bits 1190: 8 Constant bits/byte \ we define: byte is address-unit 1191: 1192: 1 bits/byte lshift Constant maxbyte 1193: \ this sets byte size for the target machine, (probably right guess) jaw 1194: 1195: T 1196: NIL Constant TNIL 1197: cell Constant tcell 1198: cell<< Constant tcell<< 1199: cell>bit Constant tcell>bit 1200: bits/char Constant tbits/char 1201: bits/char H bits/byte T / 1202: Constant tchar 1203: float Constant tfloat 1204: 1 bits/char lshift Constant tmaxchar 1205: [IFUNDEF] bits/byte 1206: 8 Constant tbits/byte 1207: [ELSE] 1208: bits/byte Constant tbits/byte 1209: [THEN] 1210: H 1211: tbits/char bits/byte / Constant tbyte 1212: 1213: 1214: \ Variables 06oct92py 1215: 1216: Variable image 1217: Variable tlast TNIL tlast ! \ Last name field 1218: Variable tlastcfa \ Last code field 1219: Variable bit$ 1220: 1221: \ statistics 10jun97jaw 1222: 1223: Variable headers-named 0 headers-named ! 1224: Variable user-vars 0 user-vars ! 1225: 1226: : target>bitmask-size ( u1 -- u2 ) 1227: 1- tcell>bit rshift 1+ ; 1228: 1229: : allocatetarget ( size -- adr ) 1230: dup allocate ABORT" CROSS: No memory for target" 1231: swap over swap erase ; 1232: 1233: \ \ memregion.fs 1234: 1235: 1236: Variable last-defined-region \ pointer to last defined region 1237: Variable region-link \ linked list with all regions 1238: Variable mirrored-link \ linked list for mirrored regions 1239: 0 dup mirrored-link ! region-link ! 1240: 1241: 1242: : >rname 7 cells + ; 1243: : >rbm 4 cells + ; 1244: : >rmem 5 cells + ; 1245: : >rtype 6 cells + ; 1246: : >rlink 3 cells + ; 1247: : >rdp 2 cells + ; 1248: : >rlen cell+ ; 1249: : >rstart ; 1250: 1251: : (region) ( addr len region -- ) 1252: \G change startaddress and length of an existing region 1253: >r r@ last-defined-region ! 1254: r@ >rlen ! dup r@ >rstart ! r> >rdp ! ; 1255: 1256: : region ( addr len -- ) 1257: \G create a new region 1258: \ check whether predefined region exists 1259: save-input bl word find >r >r restore-input throw r> r> 0= 1260: IF \ make region 1261: drop 1262: save-input create restore-input throw 1263: here last-defined-region ! 1264: over ( startaddr ) , ( length ) , ( dp ) , 1265: region-link linked 0 , 0 , 0 , bl word count string, 1266: ELSE \ store new parameters in region 1267: bl word drop 1268: >body (region) 1269: THEN ; 1270: 1271: : borders ( region -- startaddr endaddr ) 1272: \G returns lower and upper region border 1273: dup >rstart @ swap >rlen @ over + ; 1274: 1275: : extent ( region -- startaddr len ) 1276: \G returns the really used area 1277: dup >rstart @ swap >rdp @ over - ; 1278: 1279: : area ( region -- startaddr totallen ) 1280: \G returns the total area 1281: dup >rstart @ swap >rlen @ ; 1282: 1283: : mirrored 1284: \G mark a region as mirrored 1285: mirrored-link 1286: align linked last-defined-region @ , ; 1287: 1288: : .addr ( u -- ) 1289: \G prints a 16 or 32 Bit nice hex value 1290: base @ >r hex 1291: tcell 2 u> 1292: IF s>d <# # # # # [char] . hold # # # # #> type 1293: ELSE s>d <# # # # # # #> type 1294: THEN r> base ! space ; 1295: 1296: : .regions \G display region statistic 1297: 1298: \ we want to list the regions in the right order 1299: \ so first collect all regions on stack 1300: 0 region-link @ 1301: BEGIN dup WHILE dup @ REPEAT drop 1302: BEGIN dup 1303: WHILE cr 1304: 0 >rlink - >r 1305: r@ >rname count tuck type 1306: 12 swap - 0 max spaces space 1307: ." Start: " r@ >rstart @ dup .addr space 1308: ." End: " r@ >rlen @ + .addr space 1309: ." DP: " r> >rdp @ .addr 1310: REPEAT drop 1311: s" rom" T $has? H 0= ?EXIT 1312: cr ." Mirrored:" 1313: mirrored-link @ 1314: BEGIN dup 1315: WHILE space dup cell+ @ >rname count type @ 1316: REPEAT drop cr 1317: ; 1318: 1319: \ -------- predefined regions 1320: 1321: 0 0 region address-space 1322: \ total memory addressed and used by the target system 1323: 1324: 0 0 region dictionary 1325: \ rom area for the compiler 1326: 1327: T has? rom H 1328: [IF] 1329: 0 0 region ram-dictionary mirrored 1330: \ ram area for the compiler 1331: [ELSE] 1332: ' dictionary ALIAS ram-dictionary 1333: [THEN] 1334: 1335: 0 0 region return-stack 1336: 1337: 0 0 region data-stack 1338: 1339: 0 0 region tib-region 1340: 1341: ' dictionary ALIAS rom-dictionary 1342: 1343: 1344: : setup-target ( -- ) \G initialize target's memory space 1345: s" rom" T $has? H 1346: IF \ check for ram and rom... 1347: \ address-space area nip 0<> 1348: ram-dictionary area nip 0<> 1349: rom-dictionary area nip 0<> 1350: and 0= 1351: ABORT" CROSS: define address-space, rom- , ram-dictionary, with rom-support!" 1352: THEN 1353: address-space area nip 1354: IF 1355: address-space area 1356: ELSE 1357: dictionary area 1358: THEN 1359: nip 0= 1360: ABORT" CROSS: define at least address-space or dictionary!!" 1361: 1362: \ allocate target for each region 1363: region-link 1364: BEGIN @ dup 1365: WHILE dup 1366: 0 >rlink - >r 1367: r@ >rlen @ 1368: IF \ allocate mem 1369: r@ >rlen @ allocatetarget dup image ! 1370: r@ >rmem ! 1371: 1372: r@ >rlen @ 1373: target>bitmask-size allocatetarget 1374: dup bit$ ! 1375: r@ >rbm ! 1376: 1377: r@ >rlen @ 1378: tcell / 1+ cells allocatetarget r@ >rtype ! 1379: 1380: rdrop 1381: ELSE r> drop THEN 1382: REPEAT drop ; 1383: 1384: \ MakeKernel 22feb99jaw 1385: 1386: : makekernel ( targetsize -- ) 1387: \G convenience word to setup the memory of the target 1388: \G used by main.fs of the c-engine based systems 1389: 100 swap dictionary (region) 1390: setup-target ; 1391: 1392: >MINIMAL 1393: : makekernel makekernel ; 1394: >CROSS 1395: 1396: \ \ switched tdp for rom support 03jun97jaw 1397: 1398: \ second value is here to store some maximal value for statistics 1399: \ tempdp is also embedded here but has nothing to do with rom support 1400: \ (needs switched dp) 1401: 1402: variable tempdp 0 , \ temporary dp for resolving 1403: variable tempdp-save 1404: 1405: 0 [IF] 1406: variable romdp 0 , \ Dictionary-Pointer for ramarea 1407: variable ramdp 0 , \ Dictionary-Pointer for romarea 1408: 1409: \ 1410: variable sramdp \ start of ram-area for forth 1411: variable sromdp \ start of rom-area for forth 1412: 1413: [THEN] 1414: 1415: 1416: 0 value tdp 1417: variable fixed \ flag: true: no automatic switching 1418: \ false: switching is done automatically 1419: 1420: \ Switch-Policy: 1421: \ 1422: \ a header is always compiled into rom 1423: \ after a created word (create and variable) compilation goes to ram 1424: \ 1425: \ Be careful: If you want to make the data behind create into rom 1426: \ you have to put >rom before create! 1427: 1428: variable constflag constflag off 1429: 1430: : activate ( region -- ) 1431: \G next code goes to this region 1432: >rdp to tdp ; 1433: 1434: : (switchram) 1435: fixed @ ?EXIT s" rom" T $has? H 0= ?EXIT 1436: ram-dictionary activate ; 1437: 1438: : switchram 1439: constflag @ 1440: IF constflag off ELSE (switchram) THEN ; 1441: 1442: : switchrom 1443: fixed @ ?EXIT rom-dictionary activate ; 1444: 1445: : >tempdp ( addr -- ) 1446: tdp tempdp-save ! tempdp to tdp tdp ! ; 1447: : tempdp> ( -- ) 1448: tempdp-save @ to tdp ; 1449: 1450: : >ram fixed off (switchram) fixed on ; 1451: : >rom fixed off switchrom fixed on ; 1452: : >auto fixed off switchrom ; 1453: 1454: 1455: 1456: \ : romstart dup sromdp ! romdp ! ; 1457: \ : ramstart dup sramdp ! ramdp ! ; 1458: 1459: \ default compilation goes to rom 1460: \ when romable support is off, only the rom switch is used (!!) 1461: >auto 1462: 1463: : there tdp @ ; 1464: 1465: >TARGET 1466: 1467: \ \ Target Memory Handling 1468: 1469: \ Byte ordering and cell size 06oct92py 1470: 1471: : cell+ tcell + ; 1472: : cells tcell<< lshift ; 1473: : chars tchar * ; 1474: : char+ tchar + ; 1475: : floats tfloat * ; 1476: 1477: >CROSS 1478: : cell/ tcell<< rshift ; 1479: >TARGET 1480: 20 CONSTANT bl 1481: \ TNIL Constant NIL 1482: 1483: >CROSS 1484: 1485: bigendian 1486: [IF] 1487: : DS! ( d addr -- ) tcell bounds swap 1- 1488: DO maxbyte ud/mod rot I c! -1 +LOOP 2drop ; 1489: : DS@ ( addr -- d ) >r 0 0 r> tcell bounds 1490: DO maxbyte * swap maxbyte um* rot + swap I c@ + swap LOOP ; 1491: : Sc! ( n addr -- ) >r s>d r> tchar bounds swap 1- 1492: DO maxbyte ud/mod rot I c! -1 +LOOP 2drop ; 1493: : Sc@ ( addr -- n ) >r 0 0 r> tchar bounds 1494: DO maxbyte * swap maxbyte um* rot + swap I c@ + swap LOOP d>s ; 1495: [ELSE] 1496: : DS! ( d addr -- ) tcell bounds 1497: DO maxbyte ud/mod rot I c! LOOP 2drop ; 1498: : DS@ ( addr -- n ) >r 0 0 r> tcell bounds swap 1- 1499: DO maxbyte * swap maxbyte um* rot + swap I c@ + swap -1 +LOOP ; 1500: : Sc! ( n addr -- ) >r s>d r> tchar bounds 1501: DO maxbyte ud/mod rot I c! LOOP 2drop ; 1502: : Sc@ ( addr -- n ) >r 0 0 r> tchar bounds swap 1- 1503: DO maxbyte * swap maxbyte um* rot + swap I c@ + swap -1 +LOOP d>s ; 1504: [THEN] 1505: 1506: : S! ( n addr -- ) >r s>d r> DS! ; 1507: : S@ ( addr -- n ) DS@ d>s ; 1508: 1509: : taddr>region ( taddr -- region | 0 ) 1510: \G finds for a target-address the correct region 1511: \G returns 0 if taddr is not in range of a target memory region 1512: region-link 1513: BEGIN @ dup 1514: WHILE dup >r 1515: 0 >rlink - >r 1516: r@ >rlen @ 1517: IF dup r@ borders within 1518: IF r> r> drop nip EXIT THEN 1519: THEN 1520: r> drop 1521: r> 1522: REPEAT 1523: 2drop 0 ; 1524: 1525: : taddr>region-abort ( taddr -- region | 0 ) 1526: dup taddr>region dup 0= 1527: IF drop cr ." Wrong address: " .addr 1528: -1 ABORT" Address out of range!" 1529: THEN nip ; 1530: 1531: : (>regionimage) ( taddr -- 'taddr ) 1532: dup 1533: \ find region we want to address 1534: taddr>region-abort 1535: >r 1536: \ calculate offset in region 1537: r@ >rstart @ - 1538: \ add regions real address in our memory 1539: r> >rmem @ + ; 1540: 1541: : (>regionbm) ( taddr -- 'taddr bitmaskbaseaddr ) 1542: dup 1543: \ find region we want to address 1544: taddr>region-abort 1545: >r 1546: \ calculate offset in region 1547: r@ >rstart @ - 1548: \ add regions real address in our memory 1549: r> >rbm @ ; 1550: 1551: : (>regiontype) ( taddr -- 'taddr ) 1552: dup 1553: \ find region we want to address 1554: taddr>region-abort 1555: >r 1556: \ calculate offset in region 1557: r@ >rstart @ - tcell / cells 1558: \ add regions real address in our memory 1559: r> >rtype @ + ; 1560: 1561: \ Bit string manipulation 06oct92py 1562: \ 9may93jaw 1563: CREATE Bittable 80 c, 40 c, 20 c, 10 c, 8 c, 4 c, 2 c, 1 c, 1564: : bits ( n -- n ) chars Bittable + c@ ; 1565: 1566: : >bit ( addr n -- c-addr mask ) 8 /mod rot + swap bits ; 1567: : +bit ( addr n -- ) >bit over c@ or swap c! ; 1568: : -bit ( addr n -- ) >bit invert over c@ and swap c! ; 1569: 1570: : @relbit ( taddr -- f ) (>regionbm) swap cell/ >bit swap c@ and ; 1571: 1572: : (relon) ( taddr -- ) 1573: [ [IFDEF] fd-relocation-table ] 1574: s" +" fd-relocation-table write-file throw 1575: dup s>d <# #s #> fd-relocation-table write-line throw 1576: [ [THEN] ] 1577: (>regionbm) swap cell/ +bit ; 1578: 1579: : (reloff) ( taddr -- ) 1580: [ [IFDEF] fd-relocation-table ] 1581: s" -" fd-relocation-table write-file throw 1582: dup s>d <# #s #> fd-relocation-table write-line throw 1583: [ [THEN] ] 1584: (>regionbm) swap cell/ -bit ; 1585: 1586: : (>image) ( taddr -- absaddr ) image @ + ; 1587: 1588: DEFER >image 1589: DEFER relon 1590: DEFER reloff 1591: DEFER correcter 1592: 1593: T has? relocate H 1594: [IF] 1595: ' (relon) IS relon 1596: ' (reloff) IS reloff 1597: ' (>regionimage) IS >image 1598: [ELSE] 1599: ' drop IS relon 1600: ' drop IS reloff 1601: ' (>regionimage) IS >image 1602: [THEN] 1603: 1604: \ Target memory access 06oct92py 1605: 1606: : align+ ( taddr -- rest ) 1607: tcell tuck 1- and - [ tcell 1- ] Literal and ; 1608: : cfalign+ ( taddr -- rest ) 1609: \ see kernel.fs:cfaligned 1610: /maxalign tuck 1- and - [ /maxalign 1- ] Literal and ; 1611: 1612: >TARGET 1613: : aligned ( taddr -- ta-addr ) dup align+ + ; 1614: \ assumes cell alignment granularity (as GNU C) 1615: 1616: : cfaligned ( taddr1 -- taddr2 ) 1617: \ see kernel.fs 1618: dup cfalign+ + ; 1619: 1620: : @ ( taddr -- w ) >image S@ ; 1621: : ! ( w taddr -- ) >image S! ; 1622: : c@ ( taddr -- char ) >image Sc@ ; 1623: : c! ( char taddr -- ) >image Sc! ; 1624: : 2@ ( taddr -- x1 x2 ) T dup cell+ @ swap @ H ; 1625: : 2! ( x1 x2 taddr -- ) T tuck ! cell+ ! H ; 1626: 1627: \ Target compilation primitives 06oct92py 1628: \ included A! 16may93jaw 1629: 1630: : here ( -- there ) there ; 1631: : allot ( n -- ) tdp +! ; 1632: : , ( w -- ) T here H tcell T allot ! H ; 1633: : c, ( char -- ) T here H tchar T allot c! H ; 1634: : align ( -- ) T here H align+ 0 ?DO bl T c, H tchar +LOOP ; 1635: : cfalign ( -- ) 1636: T here H cfalign+ 0 ?DO bl T c, H tchar +LOOP ; 1637: 1638: : >address dup 0>= IF tbyte / THEN ; \ ?? jaw 1639: : A! swap >address swap dup relon T ! H ; 1640: : A, ( w -- ) >address T here H relon T , H ; 1641: 1642: \ high-level ghosts 1643: 1644: >CROSS 1645: 1646: : call-forward ( ghost -- ) 1647: there 0 colon, 0 do-refered ; 1648: ' call-forward IS is-forward 1649: 1650: Ghost (do) Ghost (?do) 2drop 1651: Ghost (for) drop 1652: Ghost (loop) Ghost (+loop) 2drop 1653: Ghost (next) drop 1654: Ghost (does>) Ghost (compile) 2drop 1655: Ghost (.") Ghost (S") Ghost (ABORT") 2drop drop 1656: Ghost (C") drop 1657: Ghost ' drop 1658: 1659: \ ' prim-forward IS is-forward 1660: 1661: \ user ghosts 1662: 1663: Ghost state drop 1664: 1665: \ \ -------------------- Host/Target copy etc. 29aug01jaw 1666: 1667: 1668: >CROSS 1669: 1670: : TD! >image DS! ; 1671: : TD@ >image DS@ ; 1672: 1673: : th-count ( taddr -- host-addr len ) 1674: \G returns host address of target string 1675: assert1( tbyte 1 = ) 1676: dup X c@ swap X char+ >image swap ; 1677: 1678: : ht-move ( haddr taddr len -- ) 1679: \G moves data from host-addr to destination in target-addr 1680: \G character by character 1681: swap -rot bounds ?DO I c@ over X c! X char+ LOOP drop ; 1682: 1683: 2Variable last-string 1684: 1685: : ht-string, ( addr count -- ) 1686: dup there swap last-string 2! 1687: dup T c, H bounds ?DO I c@ T c, H LOOP ; 1688: 1689: >TARGET 1690: 1691: : count dup X c@ swap X char+ swap ; 1692: 1693: : on -1 -1 rot TD! ; 1694: : off T 0 swap ! H ; 1695: 1696: : tcmove ( source dest len -- ) 1697: \G cmove in target memory 1698: tchar * bounds 1699: ?DO dup T c@ H I T c! H 1+ 1700: tchar +LOOP drop ; 1701: 1702: : td, ( d -- ) 1703: \G Store a host value as one cell into the target 1704: there tcell X allot TD! ; 1705: 1706: \ \ Load Assembler 1707: 1708: >TARGET 1709: H also Forth definitions 1710: 1711: \ FIXME: should we include the assembler really in the forth 1712: \ dictionary?!?!?!? This conflicts with the existing assembler 1713: \ of the host forth system!! 1714: [IFDEF] asm-include asm-include [THEN] hex 1715: 1716: previous 1717: 1718: 1719: >CROSS 1720: 1721: : (cc) T a, H ; ' (cc) plugin-of colon, 1722: : (xt) T a, H ; ' (xt) plugin-of xt, 1723: : (prim) T a, H ; ' (prim) plugin-of prim, 1724: 1725: : (cr) >tempdp colon, tempdp> ; ' (cr) plugin-of colon-resolve 1726: : (ar) T ! H ; ' (ar) plugin-of addr-resolve 1727: : (dr) ( ghost res-pnt target-addr addr ) 1728: >tempdp drop over 1729: dup >magic @ <do:> = 1730: IF doer, 1731: ELSE dodoes, 1732: THEN 1733: tempdp> ; ' (dr) plugin-of doer-resolve 1734: 1735: : (cm) ( -- addr ) 1736: T here align H 1737: -1 xt, ; ' (cm) plugin-of colonmark, 1738: 1739: >TARGET 1740: : compile, ( xt -- ) 1741: dup xt>ghost >comp @ EXECUTE ; 1742: >CROSS 1743: 1744: \ resolve structure 1745: 1746: : >next ; \ link to next field 1747: : >tag cell+ ; \ indecates type of reference: 0: call, 1: address, 2: doer 1748: : >taddr cell+ cell+ ; 1749: : >ghost 3 cells + ; 1750: : >file 4 cells + ; 1751: : >line 5 cells + ; 1752: 1753: : (refered) ( ghost addr tag -- ) 1754: \G creates a reference to ghost at address taddr 1755: >space 1756: rot >link linked 1757: ( taddr tag ) , 1758: ( taddr ) , 1759: last-header-ghost @ , 1760: loadfile , 1761: sourceline# , 1762: space> 1763: ; 1764: 1765: ' (refered) IS do-refered 1766: 1767: : refered ( ghost tag -- ) 1768: \G creates a resolve structure 1769: T here aligned H swap (refered) 1770: ; 1771: 1772: : killref ( addr ghost -- ) 1773: \G kills a forward reference to ghost at position addr 1774: \G this is used to eleminate a :dovar refence after making a DOES> 1775: dup >magic @ <fwd> <> IF 2drop EXIT THEN 1776: swap >r >link 1777: BEGIN dup @ dup ( addr last this ) 1778: WHILE dup >taddr @ r@ = 1779: IF @ over ! 1780: ELSE nip THEN 1781: REPEAT rdrop 2drop 1782: ; 1783: 1784: Defer resolve-warning 1785: 1786: : reswarn-test ( ghost res-struct -- ghost res-struct ) 1787: over cr ." Resolving " .ghost dup ." in " >ghost @ .ghost ; 1788: 1789: : reswarn-forward ( ghost res-struct -- ghost res-struct ) 1790: over warnhead .ghost dup ." is referenced in " 1791: >ghost @ .ghost ; 1792: 1793: \ ' reswarn-test IS resolve-warning 1794: 1795: \ resolve 14oct92py 1796: 1797: : resolve-loop ( ghost resolve-list tcfa -- ) 1798: >r 1799: BEGIN dup WHILE 1800: \ dup >tag @ 2 = IF reswarn-forward THEN 1801: resolve-warning 1802: r@ over >taddr @ 1803: 2 pick >tag @ 1804: CASE 0 OF colon-resolve ENDOF 1805: 1 OF addr-resolve ENDOF 1806: 2 OF doer-resolve ENDOF 1807: ENDCASE 1808: @ \ next list element 1809: REPEAT 2drop rdrop 1810: ; 1811: 1812: \ : resolve-loop ( ghost tcfa -- ghost tcfa ) 1813: \ >r dup >link @ 1814: \ BEGIN dup WHILE dup T @ H r@ rot T ! H REPEAT drop r> ; 1815: 1816: \ exists 9may93jaw 1817: 1818: : exists ( ghost tcfa -- ) 1819: \G print warning and set new target link in ghost 1820: swap exists-warning 1821: >link ! ; 1822: 1823: : colon-resolved ( ghost -- ) 1824: >link @ colon, ; \ compile-call 1825: 1826: : prim-resolved ( ghost -- ) 1827: >link @ prim, ; 1828: 1829: 0 Value resolved 1830: 1831: : resolve ( ghost tcfa -- ) 1832: \G resolve referencies to ghost with tcfa 1833: dup taddr>region 0<> IF 1834: 2dup (>regiontype) define-addr-struct addr-xt-ghost 1835: 1836: \ we define new address only if empty 1837: \ this is for not to take over the alias ghost 1838: \ (different ghost, but identical xt) 1839: \ but the very first that really defines it 1840: dup @ 0= IF ! ELSE 2drop THEN 1841: THEN 1842: 1843: \ is ghost resolved?, second resolve means another 1844: \ definition with the same name 1845: over undefined? 0= IF exists EXIT THEN 1846: \ get linked-list 1847: swap >r r@ >link @ swap \ ( list tcfa R: ghost ) 1848: \ mark ghost as resolved 1849: dup r@ >link ! <res> r@ >magic ! 1850: r@ to resolved 1851: r@ >comp @ ['] prim-forward = IF 1852: ['] prim-resolved r@ >comp ! THEN 1853: r@ >comp @ what's is-forward = IF 1854: ['] prim-resolved r@ >comp ! THEN 1855: \ loop through forward referencies 1856: r> -rot 1857: comp-state @ >r Resolving comp-state ! 1858: resolve-loop 1859: r> comp-state ! 1860: 1861: ['] noop IS resolve-warning 1862: ; 1863: 1864: \ gexecute ghost, 01nov92py 1865: 1866: : (gexecute) ( ghost -- ) 1867: dup >comp @ EXECUTE ; 1868: 1869: : gexecute ( ghost -- ) 1870: dup >magic @ <imm> = IF -1 ABORT" CROSS: gexecute on immediate word" THEN 1871: (gexecute) ; 1872: 1873: : addr, ( ghost -- ) 1874: dup forward? IF 1 refered 0 T a, H ELSE >link @ T a, H THEN ; 1875: 1876: \ .unresolved 11may93jaw 1877: 1878: variable ResolveFlag 1879: 1880: \ ?touched 11may93jaw 1881: 1882: : ?touched ( ghost -- flag ) dup forward? swap >link @ 1883: 0 <> and ; 1884: 1885: : .forwarddefs ( ghost -- ) 1886: ." appeared in:" 1887: >link 1888: BEGIN @ dup 1889: WHILE cr 5 spaces 1890: dup >ghost @ .ghost 1891: ." file " dup >file @ ?dup IF count type ELSE ." CON" THEN 1892: ." line " dup >line @ .dec 1893: REPEAT 1894: drop ; 1895: 1896: : ?resolved ( ghost -- ) 1897: dup ?touched 1898: IF ResolveFlag on 1899: dup cr .ghost .forwarddefs 1900: ELSE drop 1901: THEN ; 1902: 1903: : .unresolved ( -- ) 1904: ResolveFlag off cr ." Unresolved: " 1905: ghost-list 1906: BEGIN @ dup 1907: WHILE dup ?resolved 1908: REPEAT drop ResolveFlag @ 1909: IF 1910: -1 abort" Unresolved words!" 1911: ELSE 1912: ." Nothing!" 1913: THEN 1914: cr ; 1915: 1916: : .stats 1917: base @ >r decimal 1918: cr ." named Headers: " headers-named @ . 1919: r> base ! ; 1920: 1921: >MINIMAL 1922: 1923: : .unresolved .unresolved ; 1924: 1925: >CROSS 1926: \ Header states 12dec92py 1927: 1928: \ : flag! ( 8b -- ) tlast @ dup >r T c@ xor r> c! H ; 1929: bigendian [IF] 0 [ELSE] tcell 1- [THEN] Constant flag+ 1930: : flag! ( w -- ) tlast @ flag+ + dup >r T c@ xor r> c! H ; 1931: 1932: VARIABLE ^imm 1933: 1934: \ !! should be target wordsize specific 1935: $80 constant alias-mask 1936: $40 constant immediate-mask 1937: $20 constant restrict-mask 1938: 1939: >TARGET 1940: : immediate immediate-mask flag! 1941: ^imm @ @ dup <imm> = IF drop EXIT THEN 1942: <res> <> ABORT" CROSS: Cannot immediate a unresolved word" 1943: <imm> ^imm @ ! ; 1944: : restrict restrict-mask flag! ; 1945: 1946: : isdoer 1947: \G define a forth word as doer, this makes obviously only sence on 1948: \G forth processors such as the PSC1000 1949: <do:> last-header-ghost @ >magic ! ; 1950: >CROSS 1951: 1952: \ Target Header Creation 01nov92py 1953: 1954: : ht-lstring, ( addr count -- ) 1955: dup T , H bounds ?DO I c@ T c, H LOOP ; 1956: 1957: >TARGET 1958: : name, ( "name" -- ) bl word count ht-lstring, X cfalign ; 1959: : view, ( -- ) ( dummy ) ; 1960: >CROSS 1961: 1962: \ Target Document Creation (goes to crossdoc.fd) 05jul95py 1963: 1964: s" ./doc/crossdoc.fd" r/w create-file throw value doc-file-id 1965: \ contains the file-id of the documentation file 1966: 1967: : T-\G ( -- ) 1968: source >in @ /string doc-file-id write-line throw 1969: postpone \ ; 1970: 1971: Variable to-doc to-doc on 1972: 1973: : cross-doc-entry ( -- ) 1974: to-doc @ tlast @ 0<> and \ not an anonymous (i.e. noname) header 1975: IF 1976: s" " doc-file-id write-line throw 1977: s" make-doc " doc-file-id write-file throw 1978: 1979: Last-Header-Ghost @ >ghostname doc-file-id write-file throw 1980: >in @ 1981: [char] ( parse 2drop 1982: [char] ) parse doc-file-id write-file throw 1983: s" )" doc-file-id write-file throw 1984: [char] \ parse 2drop 1985: T-\G 1986: >in ! 1987: THEN ; 1988: 1989: \ Target TAGS creation 1990: 1991: s" kernel.TAGS" r/w create-file throw value tag-file-id 1992: s" kernel.tags" r/w create-file throw value vi-tag-file-id 1993: \ contains the file-id of the tags file 1994: 1995: Create tag-beg 2 c, 7F c, bl c, 1996: Create tag-end 2 c, bl c, 01 c, 1997: Create tag-bof 1 c, 0C c, 1998: Create tag-tab 1 c, 09 c, 1999: 2000: 2variable last-loadfilename 0 0 last-loadfilename 2! 2001: 2002: : put-load-file-name ( -- ) 2003: sourcefilename last-loadfilename 2@ d<> 2004: IF 2005: tag-bof count tag-file-id write-line throw 2006: sourcefilename 2dup 2007: tag-file-id write-file throw 2008: last-loadfilename 2! 2009: s" ,0" tag-file-id write-line throw 2010: THEN ; 2011: 2012: : cross-gnu-tag-entry ( -- ) 2013: tlast @ 0<> \ not an anonymous (i.e. noname) header 2014: IF 2015: put-load-file-name 2016: source >in @ min tag-file-id write-file throw 2017: tag-beg count tag-file-id write-file throw 2018: Last-Header-Ghost @ >ghostname tag-file-id write-file throw 2019: tag-end count tag-file-id write-file throw 2020: base @ decimal sourceline# 0 <# #s #> tag-file-id write-file throw 2021: \ >in @ 0 <# #s [char] , hold #> tag-file-id write-line throw 2022: s" ,0" tag-file-id write-line throw 2023: base ! 2024: THEN ; 2025: 2026: : cross-vi-tag-entry ( -- ) 2027: tlast @ 0<> \ not an anonymous (i.e. noname) header 2028: IF 2029: sourcefilename vi-tag-file-id write-file throw 2030: tag-tab count vi-tag-file-id write-file throw 2031: Last-Header-Ghost @ >ghostname vi-tag-file-id write-file throw 2032: tag-tab count vi-tag-file-id write-file throw 2033: s" /^" vi-tag-file-id write-file throw 2034: source vi-tag-file-id write-file throw 2035: s" $/" vi-tag-file-id write-line throw 2036: THEN ; 2037: 2038: : cross-tag-entry ( -- ) 2039: cross-gnu-tag-entry 2040: cross-vi-tag-entry ; 2041: 2042: \ Check for words 2043: 2044: Defer skip? ' false IS skip? 2045: 2046: : skipdef ( "name" -- ) 2047: \G skip definition of an undefined word in undef-words and 2048: \G all-words mode 2049: Ghost dup forward? 2050: IF >magic <skip> swap ! 2051: ELSE drop THEN ; 2052: 2053: : tdefined? ( "name" -- flag ) 2054: Ghost undefined? 0= ; 2055: 2056: : defined2? ( "name" -- flag ) 2057: \G return true for anything else than forward, even for <skip> 2058: \G that's what we want 2059: Ghost forward? 0= ; 2060: 2061: : forced? ( "name" -- flag ) 2062: \G return ture if it is a foreced skip with defskip 2063: Ghost >magic @ <skip> = ; 2064: 2065: : needed? ( -- flag ) \ name 2066: \G returns a false flag when 2067: \G a word is not defined 2068: \G a forward reference exists 2069: \G so the definition is not skipped! 2070: bl word gfind 2071: IF dup undefined? 2072: nip 2073: 0= 2074: ELSE drop true THEN ; 2075: 2076: : doer? ( -- flag ) \ name 2077: Ghost >magic @ <do:> = ; 2078: 2079: : skip-defs ( -- ) 2080: BEGIN refill WHILE source -trailing nip 0= UNTIL THEN ; 2081: 2082: \ Target header creation 2083: 2084: Variable NoHeaderFlag 2085: NoHeaderFlag off 2086: 2087: : 0.r ( n1 n2 -- ) 2088: base @ >r hex 2089: 0 swap <# 0 ?DO # LOOP #> type 2090: r> base ! ; 2091: 2092: : .sym ( adr len -- ) 2093: \G escapes / and \ to produce sed output 2094: bounds 2095: DO I c@ dup 2096: CASE [char] / OF drop ." \/" ENDOF 2097: [char] \ OF drop ." \\" ENDOF 2098: dup OF emit ENDOF 2099: ENDCASE 2100: LOOP ; 2101: 2102: Defer setup-execution-semantics 2103: 0 Value lastghost 2104: 2105: : (THeader ( "name" -- ghost ) 2106: \ >in @ bl word count type 2 spaces >in ! 2107: \ wordheaders will always be compiled to rom 2108: switchrom 2109: \ build header in target 2110: NoHeaderFlag @ 2111: IF NoHeaderFlag off 2112: ELSE 2113: T align H view, 2114: tlast @ dup 0> IF tcell - THEN T A, H there tlast ! 2115: 1 headers-named +! \ Statistic 2116: >in @ T name, H >in ! 2117: THEN 2118: T cfalign here H tlastcfa ! 2119: \ Old Symbol table sed-script 2120: \ >in @ cr ." sym:s/CFA=" there 4 0.r ." /" bl word count .sym ." /g" cr >in ! 2121: HeaderGhost 2122: \ output symbol table to extra file 2123: [ [IFDEF] fd-symbol-table ] 2124: base @ hex there s>d <# 8 0 DO # LOOP #> fd-symbol-table write-file throw base ! 2125: s" :" fd-symbol-table write-file throw 2126: dup >ghostname fd-symbol-table write-line throw 2127: [ [THEN] ] 2128: dup Last-Header-Ghost ! dup to lastghost 2129: dup >magic ^imm ! \ a pointer for immediate 2130: alias-mask flag! 2131: cross-doc-entry cross-tag-entry 2132: setup-execution-semantics 2133: ; 2134: 2135: \ this is the resolver information from ":" 2136: \ resolving is done by ";" 2137: Variable ;Resolve 1 cells allot 2138: 2139: : hereresolve ( ghost -- ) 2140: there resolve 0 ;Resolve ! ; 2141: 2142: : Theader ( "name" -- ghost ) 2143: (THeader dup hereresolve ; 2144: 2145: Variable aprim-nr -20 aprim-nr ! 2146: 2147: : copy-execution-semantics ( ghost-from ghost-dest -- ) 2148: >r 2149: dup >exec @ r@ >exec ! 2150: dup >comp @ r@ >comp ! 2151: dup >exec2 @ r@ >exec2 ! 2152: dup >exec-compile @ r@ >exec-compile ! 2153: dup >ghost-xt @ r@ >ghost-xt ! 2154: dup >created @ r@ >created ! 2155: rdrop drop ; 2156: 2157: >TARGET 2158: 2159: : Alias ( cfa -- ) \ name 2160: >in @ skip? IF 2drop EXIT THEN >in ! 2161: (THeader ( S xt ghost ) 2162: 2dup swap xt>ghost swap copy-execution-semantics 2163: over resolve T A, H alias-mask flag! ; 2164: 2165: Variable last-prim-ghost 2166: 0 last-prim-ghost ! 2167: 2168: : asmprimname, ( ghost -- : name ) 2169: dup last-prim-ghost ! 2170: >r 2171: here bl word count string, r@ >asm-name ! 2172: aprim-nr @ r> >asm-dummyaddr ! ; 2173: 2174: Defer setup-prim-semantics 2175: 2176: : mapprim ( "forthname" "asmlabel" -- ) 2177: THeader -1 aprim-nr +! aprim-nr @ T A, H 2178: asmprimname, 2179: setup-prim-semantics ; 2180: 2181: : mapprim: ( "forthname" "asmlabel" -- ) 2182: -1 aprim-nr +! aprim-nr @ 2183: Ghost tuck swap resolve <do:> swap tuck >magic ! 2184: asmprimname, ; 2185: 2186: : Alias: ( cfa -- ) \ name 2187: >in @ skip? IF 2drop EXIT THEN >in ! 2188: dup 0< s" prims" T $has? H 0= and 2189: IF 2190: .sourcepos ." needs doer: " >in @ bl word count type >in ! cr 2191: THEN 2192: Ghost tuck swap resolve <do:> swap >magic ! ; 2193: 2194: Variable prim# 2195: : first-primitive ( n -- ) prim# ! ; 2196: : Primitive ( -- ) \ name 2197: >in @ skip? IF drop EXIT THEN >in ! 2198: s" prims" T $has? H 0= 2199: IF 2200: .sourcepos ." needs prim: " >in @ bl word count type >in ! cr 2201: THEN 2202: \ ['] prim-forward IS is-forward 2203: prim# @ (THeader ( S xt ghost ) 2204: dup >ghost-flags <primitive> set-flag 2205: over resolve T A, H alias-mask flag! 2206: \ ['] call-forward IS is-forward 2207: -1 prim# +! ; 2208: >CROSS 2209: 2210: \ Conditionals and Comments 11may93jaw 2211: 2212: \G saves the existing cond action, this is used for redefining in 2213: \G instant 2214: Variable cond-xt-old 2215: 2216: : cond-target ( -- ) 2217: \G Compiles semantic of redefined cond into new one 2218: cond-xt-old @ compile, ; immediate restrict 2219: 2220: : ;Cond 2221: postpone ; 2222: swap ! ; immediate 2223: 2224: : Cond: ( "name" -- ) 2225: \g defines a conditional or another word that must 2226: \g be executed directly while compiling 2227: \g these words have no interpretative semantics by default 2228: Ghost 2229: >exec-compile 2230: dup @ cond-xt-old ! 2231: :NONAME ; 2232: 2233: 2234: : Comment ( -- ) 2235: >in @ Ghost swap >in ! ' swap 2236: 2dup >exec-compile ! >exec ! ; 2237: 2238: Comment ( Comment \ 2239: 2240: \ compile 10may93jaw 2241: 2242: : compile ( "name" -- ) \ name 2243: findghost 2244: dup >exec-compile @ ?dup 2245: IF nip compile, 2246: ELSE postpone literal postpone gexecute THEN ; immediate restrict 2247: 2248: >TARGET 2249: 2250: : ' ( -- xt ) 2251: \G returns the target-cfa of a ghost 2252: bl word gfind 0= ABORT" CROSS: Ghost don't exists" 2253: g>xt ; 2254: 2255: \ FIXME: this works for the current use cases, but is not 2256: \ in all cases correct ;-) 2257: : comp' X ' 0 ; 2258: 2259: Cond: ['] T ' H alit, ;Cond 2260: 2261: >CROSS 2262: 2263: : [T'] 2264: \ returns the target-cfa of a ghost, or compiles it as literal 2265: postpone [G'] 2266: state @ IF postpone g>xt ELSE g>xt THEN ; immediate 2267: 2268: \ \ threading modell 13dec92py 2269: \ modularized 14jun97jaw 2270: 2271: T 2 cells H Value xt>body 2272: 2273: : (>body) ( cfa -- pfa ) 2274: xt>body + ; ' (>body) plugin-of t>body 2275: 2276: : fillcfa ( usedcells -- ) 2277: T cells H xt>body swap - 2278: assert1( dup 0 >= ) 2279: 0 ?DO 0 X c, tchar +LOOP ; 2280: 2281: : (doer,) ( ghost -- ) 2282: addr, 1 fillcfa ; ' (doer,) plugin-of doer, 2283: 2284: : (docol,) ( -- ) [G'] :docol (doer,) ; ' (docol,) plugin-of docol, 2285: 2286: : (doprim,) ( -- ) 2287: there xt>body + ca>native T a, H 1 fillcfa ; ' (doprim,) plugin-of doprim, 2288: 2289: : (doeshandler,) ( -- ) 2290: T cfalign H compile :doesjump T 0 , H ; ' (doeshandler,) plugin-of doeshandler, 2291: 2292: : (dodoes,) ( does-action-ghost -- ) 2293: ]comp [G'] :dodoes gexecute comp[ 2294: addr, 2295: \ the relocator in the c engine, does not like the 2296: \ does-address to marked for relocation 2297: [ T e? ec H 0= [IF] ] T here H tcell - reloff [ [THEN] ] 2298: 2 fillcfa ; ' (dodoes,) plugin-of dodoes, 2299: 2300: : (dlit,) ( n -- ) compile lit td, ; ' (dlit,) plugin-of dlit, 2301: 2302: : (lit,) ( n -- ) s>d dlit, ; ' (lit,) plugin-of lit, 2303: 2304: \ if we dont produce relocatable code alit, defaults to lit, jaw 2305: \ this is just for convenience, so we don't have to define alit, 2306: \ seperately for embedded systems.... 2307: T has? relocate H 2308: [IF] 2309: : (alit,) ( n -- ) compile lit T a, H ; ' (alit,) plugin-of alit, 2310: [ELSE] 2311: : (alit,) ( n -- ) lit, ; ' (alit,) plugin-of alit, 2312: [THEN] 2313: 2314: : (fini,) compile ;s ; ' (fini,) plugin-of fini, 2315: 2316: [IFUNDEF] (code) 2317: Defer (code) 2318: Defer (end-code) 2319: [THEN] 2320: 2321: >TARGET 2322: : Code 2323: defempty? 2324: (THeader there resolve 2325: [ T e? prims H 0= [IF] T e? ITC H [ELSE] true [THEN] ] [IF] 2326: doprim, 2327: [THEN] 2328: depth (code) ; 2329: 2330: : Code: 2331: defempty? 2332: Ghost dup there ca>native resolve <do:> swap >magic ! 2333: depth (code) ; 2334: 2335: : end-code 2336: (end-code) 2337: depth ?dup IF 1- <> ABORT" CROSS: Stack changed" 2338: ELSE true ABORT" CROSS: Stack empty" THEN 2339: ; 2340: 2341: >CROSS 2342: 2343: \ tLiteral 12dec92py 2344: 2345: >TARGET 2346: Cond: \G T-\G ;Cond 2347: 2348: Cond: Literal ( n -- ) lit, ;Cond 2349: Cond: ALiteral ( n -- ) alit, ;Cond 2350: 2351: : Char ( "<char>" -- ) bl word char+ c@ ; 2352: Cond: [Char] ( "<char>" -- ) Char lit, ;Cond 2353: 2354: tchar 1 = [IF] 2355: Cond: chars ;Cond 2356: [THEN] 2357: 2358: \ some special literals 27jan97jaw 2359: 2360: \ !! Known Bug: Special Literals and plug-ins work only correct 2361: \ on 16 and 32 Bit Targets and 32 Bit Hosts! 2362: 2363: \ This section could be done with dlit, now. But first I need 2364: \ some test code JAW 2365: 2366: Cond: MAXU 2367: tcell 1 cells u> 2368: IF compile lit tcell 0 ?DO FF T c, H LOOP 2369: ELSE ffffffff lit, THEN 2370: ;Cond 2371: 2372: Cond: MINI 2373: tcell 1 cells u> 2374: IF compile lit bigendian 2375: IF 80 T c, H tcell 1 ?DO 0 T c, H LOOP 2376: ELSE tcell 1 ?DO 0 T c, H LOOP 80 T c, H 2377: THEN 2378: ELSE tcell 2 = IF 8000 ELSE 80000000 THEN lit, THEN 2379: ;Cond 2380: 2381: Cond: MAXI 2382: tcell 1 cells u> 2383: IF compile lit bigendian 2384: IF 7F T c, H tcell 1 ?DO FF T c, H LOOP 2385: ELSE tcell 1 ?DO FF T c, H LOOP 7F T c, H 2386: THEN 2387: ELSE tcell 2 = IF 7fff ELSE 7fffffff THEN lit, THEN 2388: ;Cond 2389: 2390: >CROSS 2391: 2392: \ Target compiling loop 12dec92py 2393: \ ">tib trick thrown out 10may93jaw 2394: \ number? defined at the top 11may93jaw 2395: \ replaced >in by save-input 2396: 2397: : discard 0 ?DO drop LOOP ; 2398: 2399: \ compiled word might leave items on stack! 2400: : tcom ( x1 .. xn n name -- ) 2401: \ dup count type space 2402: gfind 2403: IF >r ( discard saved input state ) discard r> 2404: dup >exec-compile @ ?dup 2405: IF nip execute-exec-compile ELSE gexecute THEN 2406: EXIT 2407: THEN 2408: number? dup 2409: IF 0> IF swap lit, THEN lit, discard 2410: ELSE 2drop restore-input throw Ghost gexecute THEN ; 2411: 2412: \ : ; DOES> 13dec92py 2413: \ ] 9may93py/jaw 2414: 2415: >CROSS 2416: 2417: : compiling-state ( -- ) 2418: \G set states to compililng 2419: Compiling comp-state ! 2420: \ if we have a state in target, change it with the compile state 2421: [G'] state dup undefined? 0= 2422: IF >ghost-xt @ execute X on ELSE drop THEN ; 2423: 2424: : interpreting-state ( -- ) 2425: \G set states to interpreting 2426: \ if target has a state variable, change it according to our state 2427: [G'] state dup undefined? 0= 2428: IF >ghost-xt @ execute X off ELSE drop THEN 2429: Interpreting comp-state ! ; 2430: 2431: >TARGET 2432: 2433: : ] 2434: compiling-state 2435: BEGIN 2436: BEGIN save-input bl word 2437: dup c@ 0= WHILE drop discard refill 0= 2438: ABORT" CROSS: End of file while target compiling" 2439: REPEAT 2440: tcom 2441: compiling? 0= 2442: UNTIL ; 2443: 2444: \ by the way: defining a second interpreter (a compiler-)loop 2445: \ is not allowed if a system should be ans conform 2446: 2447: : (:) ( ghost -- ) 2448: \ common factor of : and :noname. Prepare ;Resolve and start definition 2449: ;Resolve ! there ;Resolve cell+ ! 2450: docol, ]comp colon-start depth T ] H ; 2451: 2452: : : ( -- colon-sys ) \ Name 2453: defempty? 2454: constflag off \ don't let this flag work over colon defs 2455: \ just to go sure nothing unwanted happens 2456: >in @ skip? IF drop skip-defs EXIT THEN >in ! 2457: (THeader (:) ; 2458: 2459: : :noname ( -- colon-sys ) 2460: X cfalign there 2461: \ define a nameless ghost 2462: here ghostheader dup last-header-ghost ! dup to lastghost 2463: (:) ; 2464: 2465: Cond: EXIT ( -- ) compile ;S ;Cond 2466: 2467: Cond: ?EXIT ( -- ) 1 abort" CROSS: using ?exit" ;Cond 2468: 2469: >CROSS 2470: : LastXT ;Resolve @ 0= abort" CROSS: no definition for LastXT" 2471: ;Resolve cell+ @ ; 2472: 2473: >TARGET 2474: 2475: Cond: recurse ( -- ) Last-Header-Ghost @ gexecute ;Cond 2476: 2477: Cond: ; ( -- ) 2478: depth ?dup 2479: IF 1- <> ABORT" CROSS: Stack changed" 2480: ELSE true ABORT" CROSS: Stack empty" 2481: THEN 2482: colon-end 2483: fini, 2484: comp[ 2485: ;Resolve @ 2486: IF ['] colon-resolved ;Resolve @ >comp ! 2487: ;Resolve @ ;Resolve cell+ @ resolve 2488: THEN 2489: interpreting-state 2490: ;Cond 2491: 2492: Cond: [ ( -- ) interpreting-state ;Cond 2493: 2494: >CROSS 2495: 2496: 0 Value created 2497: 2498: : !does ( does-action -- ) 2499: tlastcfa @ [G'] :dovar killref 2500: >space here >r ghostheader space> 2501: r@ created >do:ghost ! r@ swap resolve 2502: r> tlastcfa @ >tempdp dodoes, tempdp> ; 2503: 2504: Defer instant-interpret-does>-hook 2505: 2506: : does-resolved ( ghost -- ) 2507: compile does-exec g>xt T a, H ; 2508: \ dup g>body alit, >do:ghost @ g>xt 0 t>body - colon, ; 2509: 2510: : resolve-does>-part ( -- ) 2511: \ resolve words made by builders 2512: Last-Header-Ghost @ >do:ghost @ ?dup 2513: IF there resolve THEN ; 2514: 2515: >TARGET 2516: Cond: DOES> 2517: compile (does>) doeshandler, 2518: resolve-does>-part 2519: ;Cond 2520: 2521: : DOES> 2522: ['] does-resolved created >comp ! 2523: switchrom doeshandler, T here H !does 2524: instant-interpret-does>-hook 2525: depth T ] H ; 2526: 2527: >CROSS 2528: \ Creation 01nov92py 2529: 2530: \ Builder 11may93jaw 2531: 2532: 0 Value built 2533: 2534: : Builder ( Create-xt do-ghost "name" -- ) 2535: \ builds up a builder in current vocabulary 2536: \ create-xt is executed when word is interpreted 2537: \ do:-xt is executed when the created word from builder is executed 2538: \ for do:-xt an additional entry after the normal ghost-entrys is used 2539: 2540: ghost to built 2541: built >created @ 0= IF 2542: built >created on 2543: THEN ; 2544: 2545: : gdoes, ( ghost -- ) 2546: \ makes the codefield for a word that is built 2547: >do:ghost @ dup undefined? 0= 2548: IF 2549: dup >magic @ <do:> = 2550: IF doer, 2551: ELSE dodoes, 2552: THEN 2553: EXIT 2554: THEN 2555: \ compile :dodoes gexecute 2556: \ T here H tcell - reloff 2557: 2 refered 2558: 0 fillcfa 2559: ; 2560: 2561: : takeover-x-semantics ( S constructor-ghost new-ghost -- ) 2562: \g stores execution semantic and compilation semantic in the built word 2563: swap >do:ghost @ 2dup swap >do:ghost ! 2564: \ we use the >exec2 field for the semantic of a created word, 2565: \ using exec or exec2 makes no difference for normal cross-compilation 2566: \ but is usefull for instant where the exec field is already 2567: \ defined (e.g. Vocabularies) 2568: 2dup >exec @ swap >exec2 ! 2569: >comp @ swap >comp ! ; 2570: 2571: 0 Value createhere 2572: 2573: : create-resolve ( -- ) 2574: created createhere resolve 0 ;Resolve ! ; 2575: : create-resolve-immediate ( -- ) 2576: create-resolve T immediate H ; 2577: 2578: : TCreate ( <name> -- ) 2579: create-forward-warn 2580: IF ['] reswarn-forward IS resolve-warning THEN 2581: executed-ghost @ (Theader 2582: dup >created on dup to created 2583: 2dup takeover-x-semantics 2584: there to createhere drop gdoes, ; 2585: 2586: : RTCreate ( <name> -- ) 2587: \ creates a new word with code-field in ram 2588: create-forward-warn 2589: IF ['] reswarn-forward IS resolve-warning THEN 2590: \ make Alias 2591: executed-ghost @ (THeader 2592: dup >created on dup to created 2593: 2dup takeover-x-semantics 2594: there 0 T a, H alias-mask flag! 2595: \ store poiter to code-field 2596: switchram T cfalign H 2597: there swap T ! H 2598: there tlastcfa ! 2599: there to createhere drop gdoes, ; 2600: 2601: : Build: ( -- [xt] [colon-sys] ) 2602: :noname postpone TCreate ; 2603: 2604: : BuildSmart: ( -- [xt] [colon-sys] ) 2605: :noname 2606: [ T has? rom H [IF] ] 2607: postpone RTCreate 2608: [ [ELSE] ] 2609: postpone TCreate 2610: [ [THEN] ] ; 2611: 2612: : ;Build 2613: postpone create-resolve postpone ; built >exec ! ; immediate 2614: 2615: : ;Build-immediate 2616: postpone create-resolve-immediate 2617: postpone ; built >exec ! ; immediate 2618: 2619: : gdoes> ( ghost -- addr flag ) 2620: executed-ghost @ g>body ; 2621: 2622: \ DO: ;DO 11may93jaw 2623: 2624: : do:ghost! ( ghost -- ) built >do:ghost ! ; 2625: : doexec! ( xt -- ) built >do:ghost @ >exec ! ; 2626: 2627: : DO: ( -- [xt] [colon-sys] ) 2628: here ghostheader do:ghost! 2629: :noname postpone gdoes> ; 2630: 2631: : by: ( -- [xt] [colon-sys] ) \ name 2632: Ghost do:ghost! 2633: :noname postpone gdoes> ; 2634: 2635: : ;DO ( [xt] [colon-sys] -- ) 2636: postpone ; doexec! ; immediate 2637: 2638: : by ( -- ) \ Name 2639: Ghost >do:ghost @ do:ghost! ; 2640: 2641: : compile: ( --[xt] [colon-sys] ) 2642: \G defines a compile time action for created words 2643: \G by this builder 2644: :noname ; 2645: 2646: : ;compile ( [xt] [colon-sys] -- ) 2647: postpone ; built >do:ghost @ >comp ! ; immediate 2648: 2649: \ Variables and Constants 05dec92py 2650: 2651: Builder (Constant) 2652: Build: ( n -- ) ;Build 2653: by: :docon ( target-body-addr -- n ) T @ H ;DO 2654: 2655: Builder Constant 2656: Build: ( n -- ) T , H ;Build 2657: by (Constant) 2658: 2659: Builder AConstant 2660: Build: ( n -- ) T A, H ;Build 2661: by (Constant) 2662: 2663: Builder 2Constant 2664: Build: ( d -- ) T , , H ;Build 2665: DO: ( ghost -- d ) T dup cell+ @ swap @ H ;DO 2666: 2667: Builder Create 2668: BuildSmart: ;Build 2669: by: :dovar ( target-body-addr -- addr ) ;DO 2670: 2671: Builder Variable 2672: T has? rom H [IF] 2673: Build: ( -- ) T here 0 A, H switchram T align here swap ! 0 , H ( switchrom ) ;Build 2674: by (Constant) 2675: [ELSE] 2676: Build: T 0 , H ;Build 2677: by Create 2678: [THEN] 2679: 2680: Builder 2Variable 2681: T has? rom H [IF] 2682: Build: ( -- ) T here 0 A, H switchram T align here swap ! 0 , 0 , H ( switchrom ) ;Build 2683: by (Constant) 2684: [ELSE] 2685: Build: T 0 , 0 , H ;Build 2686: by Create 2687: [THEN] 2688: 2689: Builder AVariable 2690: T has? rom H [IF] 2691: Build: ( -- ) T here 0 A, H switchram T align here swap ! 0 A, H ( switchrom ) ;Build 2692: by (Constant) 2693: [ELSE] 2694: Build: T 0 A, H ;Build 2695: by Create 2696: [THEN] 2697: 2698: \ User variables 04may94py 2699: 2700: Variable tup 0 tup ! 2701: Variable tudp 0 tudp ! 2702: 2703: : u, ( n -- udp ) 2704: tup @ tudp @ + T ! H 2705: tudp @ dup T cell+ H tudp ! ; 2706: 2707: : au, ( n -- udp ) 2708: tup @ tudp @ + T A! H 2709: tudp @ dup T cell+ H tudp ! ; 2710: 2711: Builder User 2712: Build: 0 u, X , ;Build 2713: by: :douser ( ghost -- up-addr ) X @ tup @ + ;DO 2714: 2715: Builder 2User 2716: Build: 0 u, X , 0 u, drop ;Build 2717: by User 2718: 2719: Builder AUser 2720: Build: 0 au, X , ;Build 2721: by User 2722: 2723: Builder (Value) 2724: Build: ( n -- ) ;Build 2725: by: :docon ( target-body-addr -- n ) T @ H ;DO 2726: 2727: Builder Value 2728: BuildSmart: T , H ;Build 2729: by (Value) 2730: 2731: Builder AValue 2732: BuildSmart: T A, H ;Build 2733: by (Value) 2734: 2735: Defer texecute 2736: 2737: Builder Defer 2738: BuildSmart: ( -- ) [T'] noop T A, H ;Build 2739: by: :dodefer ( ghost -- ) X @ texecute ;DO 2740: 2741: Builder interpret/compile: 2742: Build: ( inter comp -- ) swap T A, A, H ;Build-immediate 2743: DO: ( ghost -- ) ABORT" CROSS: Don't execute" ;DO 2744: 2745: \ Sturctures 23feb95py 2746: 2747: : nalign ( addr1 n -- addr2 ) 2748: \ addr2 is the aligned version of addr1 wrt the alignment size n 2749: 1- tuck + swap invert and ; 2750: 2751: 2752: Builder (Field) 2753: Build: ;Build 2754: by: :dofield T @ H + ;DO 2755: 2756: Builder Field 2757: Build: ( align1 offset1 align size "name" -- align2 offset2 ) 2758: rot dup T , H ( align1 align size offset1 ) 2759: + >r nalign r> ;Build 2760: by (Field) 2761: 2762: >TARGET 2763: : struct T 1 chars 0 H ; 2764: : end-struct T 2Constant H ; 2765: 2766: : cell% ( n -- size align ) 2767: T 1 cells H dup ; 2768: >CROSS 2769: 2770: \ Input-Methods 01py 2771: 2772: Builder input-method 2773: Build: ( m v -- m' v ) dup T , cell+ H ;Build 2774: DO: abort" Not in cross mode" ;DO 2775: 2776: Builder input-var 2777: Build: ( m v size -- m v' ) over T , H + ;Build 2778: DO: abort" Not in cross mode" ;DO 2779: 2780: \ Peephole optimization 05sep01jaw 2781: 2782: \ this section defines different compilation 2783: \ actions for created words 2784: \ this will help the peephole optimizer 2785: \ I (jaw) took this from bernds lates cross-compiler 2786: \ changes but seperated it from the original 2787: \ Builder words. The final plan is to put this 2788: \ into a seperate file, together with the peephole 2789: \ optimizer for cross 2790: 2791: 2792: T has? peephole H [IF] 2793: 2794: >CROSS 2795: 2796: : (callc) compile call T >body a, H ; ' (callc) plugin-of colon, 2797: : (call-res) >tempdp resolved gexecute tempdp> drop ; 2798: ' (call-res) plugin-of colon-resolve 2799: : (prim) dup 0< IF ( $4000 - ) ELSE 2800: ." wrong usage of (prim) " 2801: dup gdiscover IF .ghost ELSE . THEN cr -2 throw THEN 2802: T a, H ; ' (prim) plugin-of prim, 2803: 2804: \ if we want this, we have to spilt aconstant 2805: \ and constant!! 2806: \ Builder (Constant) 2807: \ compile: g>body X @ lit, ;compile 2808: 2809: Builder (Constant) 2810: compile: g>body compile lit@ T a, H ;compile 2811: 2812: Builder (Value) 2813: compile: g>body compile lit@ T a, H ;compile 2814: 2815: \ this changes also Variable, AVariable and 2Variable 2816: Builder Create 2817: compile: g>body alit, ;compile 2818: 2819: Builder User 2820: compile: g>body compile useraddr T @ , H ;compile 2821: 2822: Builder Defer 2823: compile: g>body compile lit-perform T A, H ;compile 2824: 2825: Builder (Field) 2826: compile: g>body T @ H compile lit+ T , H ;compile 2827: 2828: Builder interpret/compile: 2829: compile: does-resolved ;compile 2830: 2831: Builder input-method 2832: compile: does-resolved ;compile 2833: 2834: Builder input-var 2835: compile: does-resolved ;compile 2836: 2837: [THEN] 2838: 2839: \ structural conditionals 17dec92py 2840: 2841: >CROSS 2842: : (ncontrols?) ( n -- ) 2843: \g We expect n open control structures 2844: depth over u<= 2845: ABORT" CROSS: unstructured, stack underflow" 2846: 0 ?DO I pick 0= 2847: ABORT" CROSS: unstructured" 2848: LOOP ; ' (ncontrols?) plugin-of ncontrols? 2849: 2850: \ : ?struc ( flag -- ) ABORT" CROSS: unstructured " ; 2851: \ : sys? ( sys -- sys ) dup 0= ?struc ; 2852: 2853: : >mark ( -- sys ) T here ( dup ." M" hex. ) 0 , H ; 2854: 2855: : branchoffset ( src dest -- ) - tchar / ; \ ?? jaw 2856: 2857: : >resolve ( sys -- ) 2858: X here ( dup ." >" hex. ) over branchoffset swap X ! ; 2859: 2860: : <resolve ( sys -- ) 2861: X here ( dup ." <" hex. ) branchoffset X , ; 2862: 2863: :noname compile branch X here branchoffset X , ; 2864: IS branch, ( target-addr -- ) 2865: :noname compile ?branch X here branchoffset X , ; 2866: IS ?branch, ( target-addr -- ) 2867: :noname compile branch T here 0 , H ; 2868: IS branchmark, ( -- branchtoken ) 2869: :noname compile ?branch T here 0 , H ; 2870: IS ?branchmark, ( -- branchtoken ) 2871: :noname T here 0 , H ; 2872: IS ?domark, ( -- branchtoken ) 2873: :noname dup X @ ?struc X here over branchoffset swap X ! ; 2874: IS branchtoresolve, ( branchtoken -- ) 2875: :noname branchto, X here ; 2876: IS branchtomark, ( -- target-addr ) 2877: 2878: >TARGET 2879: 2880: \ Structural Conditionals 12dec92py 2881: 2882: \ CLEANUP Cond: BUT sys? swap ;Cond 2883: \ CLEANUP Cond: YET sys? dup ;Cond 2884: 2885: >CROSS 2886: 2887: Variable tleavings 0 tleavings ! 2888: 2889: : (done) ( addr -- ) 2890: tleavings @ 2891: BEGIN dup 2892: WHILE 2893: >r dup r@ cell+ @ \ address of branch 2894: u> 0= \ lower than DO? 2895: WHILE 2896: r@ 2 cells + @ \ branch token 2897: branchtoresolve, 2898: r@ @ r> free throw 2899: REPEAT r> THEN 2900: tleavings ! drop ; 2901: 2902: >TARGET 2903: 2904: \ What for? ANS? JAW Cond: DONE ( addr -- ) (done) ;Cond 2905: 2906: >CROSS 2907: : (leave) ( branchtoken -- ) 2908: 3 cells allocate throw >r 2909: T here H r@ cell+ ! 2910: r@ 2 cells + ! 2911: tleavings @ r@ ! 2912: r> tleavings ! ; 2913: >TARGET 2914: 2915: : (leave,) ( -- ) 2916: branchmark, (leave) ; ' (leave,) plugin-of leave, 2917: 2918: : (?leave,) ( -- ) 2919: compile 0= ?branchmark, (leave) ; ' (?leave,) plugin-of ?leave, 2920: 2921: Cond: LEAVE leave, ;Cond 2922: Cond: ?LEAVE ?leave, ;Cond 2923: 2924: >CROSS 2925: \ !!JW ToDo : Move to general tools section 2926: 2927: : to1 ( x1 x2 xn n -- addr ) 2928: \G packs n stack elements in am allocated memory region 2929: dup dup 1+ cells allocate throw dup >r swap 1+ 2930: 0 DO tuck ! cell+ LOOP 2931: drop r> ; 2932: 2933: : 1to ( addr -- x1 x2 xn ) 2934: \G unpacks the elements saved by to1 2935: dup @ swap over cells + swap 2936: 0 DO dup @ swap 1 cells - LOOP 2937: free throw ; 2938: 2939: : loop] branchto, dup <resolve tcell - (done) ; 2940: 2941: : skiploop] ?dup IF branchto, branchtoresolve, THEN ; 2942: 2943: >TARGET 2944: 2945: \ Structural Conditionals 12dec92py 2946: 2947: : (cs-swap) ( x1 x2 -- x2 x1 ) 2948: swap ; ' (cs-swap) plugin-of cs-swap 2949: 2950: : (ahead,) branchmark, ; ' (ahead,) plugin-of ahead, 2951: 2952: : (if,) ?branchmark, ; ' (if,) plugin-of if, 2953: 2954: : (then,) branchto, branchtoresolve, ; ' (then,) plugin-of then, 2955: 2956: : (else,) ( ahead ) branchmark, 2957: swap 2958: ( then ) branchto, branchtoresolve, ; ' (else,) plugin-of else, 2959: 2960: : (begin,) branchtomark, ; ' (begin,) plugin-of begin, 2961: 2962: : (while,) ( if ) ?branchmark, 2963: swap ; ' (while,) plugin-of while, 2964: 2965: : (again,) branch, ; ' (again,) plugin-of again, 2966: 2967: : (until,) ?branch, ; ' (until,) plugin-of until, 2968: 2969: : (repeat,) ( again ) branch, 2970: ( then ) branchto, branchtoresolve, ; ' (repeat,) plugin-of repeat, 2971: 2972: : (case,) ( -- n ) 2973: 0 ; ' (case,) plugin-of case, 2974: 2975: : (of,) ( n -- x1 n ) 2976: 1+ >r 2977: compile over compile = 2978: if, compile drop r> ; ' (of,) plugin-of of, 2979: 2980: : (endof,) ( x1 n -- x2 n ) 2981: >r 1 ncontrols? else, r> ; ' (endof,) plugin-of endof, 2982: 2983: : (endcase,) ( x1 .. xn n -- ) 2984: compile drop 0 ?DO 1 ncontrols? then, LOOP ; ' (endcase,) plugin-of endcase, 2985: 2986: >TARGET 2987: Cond: AHEAD ahead, ;Cond 2988: Cond: IF if, ;Cond 2989: Cond: THEN 1 ncontrols? then, ;Cond 2990: Cond: ENDIF 1 ncontrols? then, ;Cond 2991: Cond: ELSE 1 ncontrols? else, ;Cond 2992: 2993: Cond: BEGIN begin, ;Cond 2994: Cond: WHILE 1 ncontrols? while, ;Cond 2995: Cond: AGAIN 1 ncontrols? again, ;Cond 2996: Cond: UNTIL 1 ncontrols? until, ;Cond 2997: Cond: REPEAT 2 ncontrols? repeat, ;Cond 2998: 2999: Cond: CASE case, ;Cond 3000: Cond: OF of, ;Cond 3001: Cond: ENDOF endof, ;Cond 3002: Cond: ENDCASE endcase, ;Cond 3003: 3004: \ Structural Conditionals 12dec92py 3005: 3006: : (do,) ( -- target-addr ) 3007: \ ?? i think 0 is too much! jaw 3008: 0 compile (do) 3009: branchtomark, 2 to1 ; ' (do,) plugin-of do, 3010: 3011: \ alternative for if no ?do 3012: \ : (do,) 3013: \ compile 2dup compile = compile IF 3014: \ compile 2drop compile ELSE 3015: \ compile (do) branchtomark, 2 to1 ; 3016: 3017: : (?do,) ( -- target-addr ) 3018: 0 compile (?do) ?domark, (leave) 3019: branchtomark, 2 to1 ; ' (?do,) plugin-of ?do, 3020: 3021: : (for,) ( -- target-addr ) 3022: compile (for) branchtomark, ; ' (for,) plugin-of for, 3023: 3024: : (loop,) ( target-addr -- ) 3025: 1to compile (loop) loop] 3026: compile unloop skiploop] ; ' (loop,) plugin-of loop, 3027: 3028: : (+loop,) ( target-addr -- ) 3029: 1to compile (+loop) loop] 3030: compile unloop skiploop] ; ' (+loop,) plugin-of +loop, 3031: 3032: : (next,) 3033: compile (next) loop] compile unloop ; ' (next,) plugin-of next, 3034: 3035: Cond: DO do, ;Cond 3036: Cond: ?DO ?do, ;Cond 3037: Cond: FOR for, ;Cond 3038: 3039: Cond: LOOP 1 ncontrols? loop, ;Cond 3040: Cond: +LOOP 1 ncontrols? +loop, ;Cond 3041: Cond: NEXT 1 ncontrols? next, ;Cond 3042: 3043: \ String words 23feb93py 3044: 3045: : ," [char] " parse ht-string, X align ; 3046: 3047: Cond: ." compile (.") T ," H ;Cond 3048: Cond: S" compile (S") T ," H ;Cond 3049: Cond: C" compile (C") T ," H ;Cond 3050: Cond: ABORT" compile (ABORT") T ," H ;Cond 3051: 3052: Cond: IS T ' >body H compile ALiteral compile ! ;Cond 3053: : IS T >address ' >body ! H ; 3054: Cond: TO T ' >body H compile ALiteral compile ! ;Cond 3055: : TO T ' >body ! H ; 3056: 3057: Cond: defers T ' >body @ compile, H ;Cond 3058: 3059: \ LINKED ERR" ENV" 2ENV" 18may93jaw 3060: 3061: \ linked list primitive 3062: : linked X here over X @ X A, swap X ! ; 3063: : chained T linked A, H ; 3064: 3065: : err" s" ErrLink linked" evaluate T , H 3066: [char] " parse ht-string, X align ; 3067: 3068: : env" [char] " parse s" EnvLink linked" evaluate 3069: ht-string, X align X , ; 3070: 3071: : 2env" [char] " parse s" EnvLink linked" evaluate 3072: here >r ht-string, X align X , X , 3073: r> dup T c@ H 80 and swap T c! H ; 3074: 3075: \ compile must be last 22feb93py 3076: 3077: Cond: [compile] ( -- ) \ name 3078: \g For immediate words, works even if forward reference 3079: bl word gfind 0= ABORT" CROSS: Can't compile" 3080: (gexecute) ;Cond 3081: 3082: Cond: postpone ( -- ) \ name 3083: bl word gfind 0= ABORT" CROSS: Can't compile" 3084: dup >magic @ <fwd> = 3085: ABORT" CROSS: Can't postpone on forward declaration" 3086: dup >magic @ <imm> = 3087: IF (gexecute) 3088: ELSE compile (compile) addr, THEN ;Cond 3089: 3090: \ save-cross 17mar93py 3091: 3092: hex 3093: 3094: >CROSS 3095: Create magic s" Gforth2x" here over allot swap move 3096: 3097: bigendian 1+ \ strangely, in magic big=0, little=1 3098: tcell 1 = 0 and or 3099: tcell 2 = 2 and or 3100: tcell 4 = 4 and or 3101: tcell 8 = 6 and or 3102: tchar 1 = 00 and or 3103: tchar 2 = 28 and or 3104: tchar 4 = 50 and or 3105: tchar 8 = 78 and or 3106: magic 7 + c! 3107: 3108: : save-cross ( "image-name" "binary-name" -- ) 3109: bl parse ." Saving to " 2dup type cr 3110: w/o bin create-file throw >r 3111: s" header" X $has? IF 3112: s" #! " r@ write-file throw 3113: bl parse r@ write-file throw 3114: s" --image-file" r@ write-file throw 3115: #lf r@ emit-file throw 3116: r@ dup file-position throw drop 8 mod 8 swap ( file-id limit index ) 3117: ?do 3118: bl over emit-file throw 3119: loop 3120: drop 3121: magic 8 r@ write-file throw \ write magic 3122: ELSE 3123: bl parse 2drop 3124: THEN 3125: image @ there 3126: r@ write-file throw \ write image 3127: s" relocate" X $has? IF 3128: bit$ @ there 1- tcell>bit rshift 1+ 3129: r@ write-file throw \ write tags 3130: THEN 3131: r> close-file throw ; 3132: 3133: : save-region ( addr len -- ) 3134: bl parse w/o bin create-file throw >r 3135: swap >image swap r@ write-file throw 3136: r> close-file throw ; 3137: 3138: \ save-asm-region 29aug01jaw 3139: 3140: Variable name-ptr 3141: Create name-buf 200 chars allot 3142: : init-name-buf name-buf name-ptr ! ; 3143: : nb, name-ptr @ c! 1 chars name-ptr +! ; 3144: : $nb, ( adr len -- ) bounds ?DO I c@ nb, LOOP ; 3145: : @nb name-ptr @ name-buf tuck - ; 3146: 3147: \ stores a usefull string representation of the character 3148: \ in the name buffer 3149: : name-char, ( c -- ) 3150: dup 'a 'z 1+ within IF nb, EXIT THEN 3151: dup 'A 'Z 1+ within IF $20 + nb, EXIT THEN 3152: dup '0 '9 1+ within IF nb, EXIT THEN 3153: CASE '+ OF s" _PLUS" $nb, ENDOF 3154: '- OF s" _MINUS" $nb, ENDOF 3155: '* OF s" _STAR" $nb, ENDOF 3156: '/ OF s" _SLASH" $nb, ENDOF 3157: '' OF s" _TICK" $nb, ENDOF 3158: '( OF s" _OPAREN" $nb, ENDOF 3159: ') OF s" _CPAREN" $nb, ENDOF 3160: '[ OF s" _OBRACKET" $nb, ENDOF 3161: '] OF s" _CBRACKET" $nb, ENDOF 3162: '! OF s" _STORE" $nb, ENDOF 3163: '@ OF s" _FETCH" $nb, ENDOF 3164: '> OF s" _GREATER" $nb, ENDOF 3165: '< OF s" _LESS" $nb, ENDOF 3166: '= OF s" _EQUAL" $nb, ENDOF 3167: '# OF s" _HASH" $nb, ENDOF 3168: '? OF s" _QUEST" $nb, ENDOF 3169: ': OF s" _COL" $nb, ENDOF 3170: '; OF s" _SEMICOL" $nb, ENDOF 3171: ', OF s" _COMMA" $nb, ENDOF 3172: '. OF s" _DOT" $nb, ENDOF 3173: '" OF s" _DQUOT" $nb, ENDOF 3174: dup 3175: base @ >r hex s>d <# #s 'X hold '_ hold #> $nb, r> base ! 3176: ENDCASE ; 3177: 3178: : label-from-ghostname ( ghost -- addr len ) 3179: dup >ghostname init-name-buf 'L nb, bounds 3180: ?DO I c@ name-char, LOOP 3181: \ we add the address to a name to make in unique 3182: \ because one name may appear more then once 3183: \ there are names (e.g. boot) that may be reference from other 3184: \ assembler source files, so we declare them as unique 3185: \ and don't add the address suffix 3186: dup >ghost-flags @ <unique> and 0= 3187: IF s" __" $nb, >link @ base @ >r hex 0 <# #s 'L hold #> r> base ! $nb, 3188: ELSE drop 3189: THEN 3190: @nb ; 3191: 3192: \ FIXME why disabled?! 3193: : label-from-ghostnameXX ( ghost -- addr len ) 3194: \ same as (label-from-ghostname) but caches generated names 3195: dup >asm-name @ ?dup IF nip count EXIT THEN 3196: \ dup >r (label-from-ghostname) 2dup 3197: align here >r string, align 3198: r> r> >asm-name ! ; 3199: 3200: : primghostdiscover ( xt -- ghost true | xt false ) 3201: dup 0= IF false EXIT THEN 3202: >r last-prim-ghost 3203: BEGIN @ dup 3204: WHILE dup >asm-dummyaddr @ r@ = 3205: IF rdrop true EXIT THEN 3206: REPEAT 3207: drop r> false ; 3208: 3209: : gdiscover2 ( xt -- ghost true | xt false ) 3210: dup taddr>region 0= IF false EXIT THEN 3211: dup (>regiontype) @ dup 0= IF drop false EXIT THEN 3212: addr-xt-ghost @ dup 0= IF drop false EXIT THEN 3213: nip true ; 3214: \ dup >ghost-name @ IF nip true ELSE drop false THEN ; 3215: 3216: \ generates a label name for the target address 3217: : generate-label-name ( taddr -- addr len ) 3218: gdiscover2 3219: IF dup >magic @ <do:> = 3220: IF >asm-name @ count EXIT THEN 3221: label-from-ghostname 3222: ELSE 3223: primghostdiscover 3224: IF >asm-name @ count 3225: ELSE base @ >r hex 0 <# #s 'L hold #> r> base ! 3226: THEN 3227: THEN ; 3228: 3229: Variable outfile-fd 3230: 3231: : $out ( adr len -- ) outfile-fd @ write-file throw ; 3232: : nlout newline $out ; 3233: : .ux ( n -- ) 3234: base @ hex swap 0 <# #S #> $out base ! ; 3235: 3236: : save-asm-region-part-aligned ( taddr len -- 'taddr 'len ) 3237: dup cell/ 0 3238: ?DO nlout s" .word " $out over @relbit 3239: IF over X @ generate-label-name $out 3240: ELSE over X @ s" 0x0" $out .ux 3241: THEN 3242: tcell /string 3243: LOOP ; 3244: 3245: : print-bytes ( taddr len n -- taddr' len' ) 3246: over min dup 0> 3247: IF nlout s" .byte " $out 0 3248: ?DO I 0> IF s" , " $out THEN 3249: over X c@ s" 0x0" $out .ux 1 /string 3250: LOOP 3251: THEN ; 3252: 3253: : save-asm-region-part ( addr len -- ) 3254: over dup X aligned swap - ?dup 3255: IF print-bytes THEN 3256: save-asm-region-part-aligned 3257: dup dup X aligned swap - ?dup 3258: IF 2 pick @relbit ABORT" relocated field splitted" 3259: print-bytes 3260: THEN 3261: 2drop ; 3262: 3263: : print-label ( taddr -- ) 3264: nlout generate-label-name $out s" :" $out ; 3265: 3266: : snl-calc ( taddr taddr2 -- ) 3267: tuck over - ; 3268: 3269: : skip-nolables ( taddr -- taddr2 taddr len ) 3270: \G skips memory region where no lables are defined 3271: \G starting from taddr+1 3272: \G Labels will be introduced for each reference mark 3273: \G in addr-refs. 3274: \G This word deals with lables at byte addresses as well. 3275: \G The main idea is to have an intro part which 3276: \G skips until the next cell boundary, the middle part 3277: \G which skips whole cells very efficiently and the third 3278: \G part which skips the bytes to the label in a cell 3279: dup 1+ dup (>regiontype) 3280: ( S taddr taddr-realstart type-addr ) 3281: dup @ dup IF addr-refs @ THEN 3282: swap >r 3283: over align+ tuck tcell swap - rshift swap 0 3284: DO dup 1 and 3285: IF drop rdrop snl-calc UNLOOP EXIT THEN 3286: 2/ swap 1+ swap 3287: LOOP 3288: drop r> cell+ 3289: ( S .. taddr2 type-addr ) dup 3290: BEGIN dup @ dup IF addr-refs @ THEN 0= WHILE cell+ REPEAT 3291: dup >r swap - 1 cells / tcell * + r> 3292: ( S .. taddr2+skiplencells type-addr ) 3293: @ addr-refs @ 1 tcell lshift or 3294: BEGIN dup 1 and 0= WHILE swap 1+ swap 2/ REPEAT drop 3295: ( S .. taddr2+skiplencells+skiplenbytes ) 3296: snl-calc ; 3297: 3298: : insert-label ( taddr -- ) 3299: dup 0= IF drop EXIT THEN 3300: \ ignore everything which points outside our memory regions 3301: \ maybe a primitive pointer or whatever 3302: dup taddr>region 0= IF drop EXIT THEN 3303: dup >r (>regiontype) define-addr-struct addr-refs dup @ 3304: r> tcell 1- and 1 swap lshift or swap ! ; 3305: 3306: \ this generates a sorted list of addresses which must be labels 3307: \ it scans therefore a whole region 3308: : generate-label-list-region ( taddr len -- ) 3309: BEGIN over @relbit IF over X @ insert-label THEN 3310: tcell /string dup 0< 3311: UNTIL 2drop ; 3312: 3313: : generate-label-list ( -- ) 3314: region-link 3315: BEGIN @ dup WHILE 3316: dup 0 >rlink - extent 3317: ?dup IF generate-label-list-region ELSE drop THEN 3318: REPEAT drop ; 3319: 3320: : create-outfile ( addr len -- ) 3321: w/o bin create-file throw outfile-fd ! ; 3322: 3323: : close-outfile ( -- ) 3324: outfile-fd @ close-file throw ; 3325: 3326: : (save-asm-region) ( region -- ) 3327: \ ." label list..." 3328: generate-label-list 3329: \ ." ok!" cr 3330: extent ( S taddr len ) 3331: over insert-label 3332: 2dup + dup insert-label >r ( R end-label ) 3333: ( S taddr len ) drop 3334: BEGIN 3335: dup print-label 3336: dup r@ <> WHILE 3337: skip-nolables save-asm-region-part 3338: REPEAT drop rdrop ; 3339: 3340: : lineout ( addr len -- ) 3341: outfile-fd @ write-line throw ; 3342: 3343: : save-asm-region ( region adr len -- ) 3344: create-outfile (save-asm-region) close-outfile ; 3345: 3346: \ \ minimal definitions 3347: 3348: >MINIMAL also minimal 3349: 3350: \ Usefull words 13feb93py 3351: 3352: : KB 400 * ; 3353: 3354: \ \ [IF] [ELSE] [THEN] ... 14sep97jaw 3355: 3356: \ it is useful to define our own structures and not to rely 3357: \ on the words in the host system 3358: \ The words in the host system might be defined with vocabularies 3359: \ this doesn't work with our self-made compile-loop 3360: 3361: Create parsed 20 chars allot \ store word we parsed 3362: 3363: : upcase 3364: parsed count bounds 3365: ?DO I c@ toupper I c! LOOP ; 3366: 3367: : [ELSE] 3368: 1 BEGIN 3369: BEGIN bl word count dup WHILE 3370: comment? 20 umin parsed place upcase parsed count 3371: 2dup s" [IF]" compare 0= >r 3372: 2dup s" [IFUNDEF]" compare 0= >r 3373: 2dup s" [IFDEF]" compare 0= r> or r> or 3374: IF 2drop 1+ 3375: ELSE 2dup s" [ELSE]" compare 0= 3376: IF 2drop 1- dup 3377: IF 1+ 3378: THEN 3379: ELSE 3380: 2dup s" [ENDIF]" compare 0= >r 3381: s" [THEN]" compare 0= r> or 3382: IF 1- THEN 3383: THEN 3384: THEN 3385: ?dup 0= ?EXIT 3386: REPEAT 3387: 2drop refill 0= 3388: UNTIL drop ; immediate 3389: 3390: : [THEN] ( -- ) ; immediate 3391: 3392: : [ENDIF] ( -- ) ; immediate 3393: 3394: : [IF] ( flag -- ) 3395: 0= IF postpone [ELSE] THEN ; immediate 3396: 3397: Cond: [IF] postpone [IF] ;Cond 3398: Cond: [THEN] postpone [THEN] ;Cond 3399: Cond: [ELSE] postpone [ELSE] ;Cond 3400: 3401: \ define new [IFDEF] and [IFUNDEF] 20may93jaw 3402: 3403: : defined? tdefined? ; 3404: : needed? needed? ; 3405: : doer? doer? ; 3406: 3407: \ we want to use IFDEF on compiler directives (e.g. E?) in the source, too 3408: 3409: : directive? 3410: bl word count [ ' target >wordlist ] literal search-wordlist 3411: dup IF nip THEN ; 3412: 3413: : [IFDEF] >in @ directive? swap >in ! 3414: 0= IF tdefined? ELSE name 2drop true THEN 3415: postpone [IF] ; 3416: 3417: : [IFUNDEF] tdefined? 0= postpone [IF] ; 3418: 3419: Cond: [IFDEF] postpone [IFDEF] ;Cond 3420: 3421: Cond: [IFUNDEF] postpone [IFUNDEF] ;Cond 3422: 3423: \ C: \- \+ Conditional Compiling 09jun93jaw 3424: 3425: : C: >in @ tdefined? 0= 3426: IF >in ! X : 3427: ELSE drop 3428: BEGIN bl word dup c@ 3429: IF count comment? s" ;" compare 0= ?EXIT 3430: ELSE refill 0= ABORT" CROSS: Out of Input while C:" 3431: THEN 3432: AGAIN 3433: THEN ; 3434: 3435: : d? d? ; 3436: 3437: \G doesn't skip line when debug switch is on 3438: : \D D? 0= IF postpone \ THEN ; 3439: 3440: \G interprets the line if word is not defined 3441: : \- tdefined? IF postpone \ THEN ; 3442: 3443: \G interprets the line if word is defined 3444: : \+ tdefined? 0= IF postpone \ THEN ; 3445: 3446: Cond: \- \- ;Cond 3447: Cond: \+ \+ ;Cond 3448: Cond: \D \D ;Cond 3449: 3450: : ?? bl word find IF execute ELSE drop 0 THEN ; 3451: 3452: : needed: 3453: \G defines ghost for words that we want to be compiled 3454: BEGIN >in @ bl word c@ WHILE >in ! Ghost drop REPEAT drop ; 3455: 3456: \ words that should be in minimal 3457: 3458: create s-buffer 50 chars allot 3459: 3460: bigendian Constant bigendian 3461: 3462: : here there ; 3463: : equ constant ; 3464: : mark there constant ; 3465: 3466: \ compiler directives 3467: : >ram >ram ; 3468: : >rom >rom ; 3469: : >auto >auto ; 3470: : >tempdp >tempdp ; 3471: : tempdp> tempdp> ; 3472: : const constflag on ; 3473: 3474: : Redefinitions-start 3475: \G Starts a redefinition section. Warnings are disabled and 3476: \G existing ghosts are reused. This is used in the kernel 3477: \G where ( and \ and the like are redefined 3478: twarnings off warnings off reuse-ghosts on ; 3479: 3480: : Redefinitions-end 3481: \G Ends a redefinition section. Warnings are enabled again. 3482: twarnings on warnings on reuse-ghosts off ; 3483: 3484: : warnings name 3 = 3485: IF twarnings off warnings off ELSE twarnings on warnings on THEN drop ; 3486: 3487: : | ; 3488: \ : | NoHeaderFlag on ; \ This is broken (damages the last word) 3489: 3490: : save-cross save-cross ; 3491: : save-region save-region ; 3492: : tdump swap >image swap dump ; 3493: 3494: also forth 3495: [IFDEF] Label : Label defempty? Label ; [THEN] 3496: [IFDEF] start-macros : start-macros defempty? start-macros ; [THEN] 3497: \ [IFDEF] builttag : builttag builttag ; [THEN] 3498: previous 3499: 3500: : s" [char] " parse s-buffer place s-buffer count ; \ for environment? 3501: : + + ; 3502: : 1+ 1 + ; 3503: : 2+ 2 + ; 3504: : 1- 1- ; 3505: : - - ; 3506: : and and ; 3507: : or or ; 3508: : 2* 2* ; 3509: : * * ; 3510: : / / ; 3511: : dup dup ; 3512: : over over ; 3513: : swap swap ; 3514: : rot rot ; 3515: : drop drop ; 3516: : = = ; 3517: : 0= 0= ; 3518: : lshift lshift ; 3519: : 2/ 2/ ; 3520: \ : . . ; 3521: 3522: : all-words ['] forced? IS skip? ; 3523: : needed-words ['] needed? IS skip? ; 3524: : undef-words ['] defined2? IS skip? ; 3525: : skipdef skipdef ; 3526: 3527: : \ postpone \ ; immediate 3528: : \G T-\G ; immediate 3529: : ( postpone ( ; immediate 3530: : include bl word count included ; 3531: : included swap >image swap included ; 3532: : require require ; 3533: : needs require ; 3534: : .( [char] ) parse type ; 3535: : ." [char] " parse type ; 3536: : cr cr ; 3537: 3538: : times 0 ?DO dup X c, LOOP drop ; \ used for space table creation 3539: 3540: \ only forth also cross also minimal definitions order 3541: 3542: \ cross-compiler words 3543: 3544: : decimal decimal [g'] decimal >exec2 @ ?dup IF EXECUTE THEN ; 3545: : hex hex [g'] hex >exec2 @ ?dup IF EXECUTE THEN ; 3546: 3547: \ : tudp X tudp ; 3548: \ : tup X tup ; 3549: 3550: : doc-off false to-doc ! ; 3551: : doc-on true to-doc ! ; 3552: 3553: : declareunique ( "name" -- ) 3554: \G Sets the unique flag for a ghost. The assembler output 3555: \G generates labels with the ghostname concatenated with the address 3556: \G while cross-compiling. The address is concatenated 3557: \G because we have double occurences of the same name. 3558: \G If we want to reference the labels from the assembler or C 3559: \G code we declare them unique, so the address is skipped. 3560: Ghost >ghost-flags dup @ <unique> or swap ! ; 3561: 3562: \ [IFDEF] dbg : dbg dbg ; [THEN] 3563: 3564: \ for debugging... 3565: \ : dbg dbg ; 3566: : horder order ; 3567: : hwords words ; 3568: \ : words also ghosts 3569: \ words previous ; 3570: : .s .s ; 3571: : bye bye ; 3572: 3573: \ dummy 3574: : group 0 word drop ; 3575: 3576: \ turnkey direction 3577: : H forth ; immediate 3578: : T minimal ; immediate 3579: : G ghosts ; immediate 3580: 3581: 3582: \ these ones are pefered: 3583: 3584: : unlock previous forth also cross ; 3585: 3586: \ also minimal 3587: >cross 3588: 3589: : turnkey 3590: ghosts-wordlist 1 set-order 3591: also target definitions 3592: also Minimal also ; 3593: 3594: >minimal 3595: 3596: : [[+++ 3597: turnkey unlock ; 3598: 3599: unlock definitions also minimal 3600: 3601: : lock turnkey ; 3602: 3603: Defer +++]]-hook 3604: : +++]] +++]]-hook lock ; 3605: 3606: LOCK 3607: \ load cross compiler extension defined in mach file 3608: 3609: UNLOCK >CROSS 3610: 3611: [IFDEF] extend-cross extend-cross [THEN] 3612: 3613: LOCK