gforth/cross.fs - view

File: [gforth] / gforth / cross.fs
Revision 1.120: download - view: text, annotated - select for diffs
Tue Mar 19 11:13:08 2002 UTC (22 years, 1 month ago) by jwilke
Branches: MAIN
CVS tags: HEAD

no functional change

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: \ FIXME delete` 253: \ 1 Constant Cross-Flag \ to check whether assembler compiler plug-ins are 254: \ for cross-compiling 255: \ No! we use "[IFUNDEF]" there to find out whether we are target compiling!!! 256: 257: \ FIXME move down 258: : comment? ( c-addr u -- c-addr u ) 259: 2dup s" (" compare 0= 260: IF postpone ( 261: ELSE 2dup s" \" compare 0= IF postpone \ THEN 262: THEN ; 263: 264: : X ( -- <name> ) 265: \G The next word in the input is a target word. 266: \G Equivalent to T <name> but without permanent 267: \G switch to target dictionary. Used as prefix e.g. for @, !, here etc. 268: bl word count [ ' target >wordlist ] Literal search-wordlist 269: IF state @ IF compile, ELSE execute THEN 270: ELSE -1 ABORT" Cross: access method not supported!" 271: THEN ; immediate 272: 273: \ Begin CROSS COMPILER: 274: 275: \ debugging 276: 277: 0 [IF] 278: 279: This implements debugflags for the cross compiler and the compiled 280: images. It works identical to the has-flags in the environment. 281: The debugflags are defined in a vocabluary. If the word exists and 282: its value is true, the flag is switched on. 283: 284: [THEN] 285: 286: >CROSS 287: 288: Vocabulary debugflags \ debug flags for cross 289: also debugflags get-order over 290: Constant debugflags-wl 291: set-order previous 292: 293: : DebugFlag 294: get-current >r debugflags-wl set-current 295: SetValue 296: r> set-current ; 297: 298: : Debug? ( adr u -- flag ) 299: \G return true if debug flag is defined or switched on 300: debugflags-wl search-wordlist 301: IF EXECUTE 302: ELSE false THEN ; 303: 304: : D? ( <name> -- flag ) 305: \G return true if debug flag is defined or switched on 306: \G while compiling we do not return the current value but 307: bl word count debug? ; 308: 309: : [d?] 310: \G compile the value-xt so the debug flag can be switched 311: \G the flag must exist! 312: bl word count debugflags-wl search-wordlist 313: IF compile, 314: ELSE -1 ABORT" unknown debug flag" 315: \ POSTPONE false 316: THEN ; immediate 317: 318: \ \ -------------------- source file 319: 320: decimal 321: 322: Variable cross-file-list 323: 0 cross-file-list ! 324: Variable target-file-list 325: 0 target-file-list ! 326: Variable host-file-list 327: 0 host-file-list ! 328: 329: cross-file-list Value file-list 330: 0 Value source-desc 331: 332: \ file loading 333: 334: : >fl-id 1 cells + ; 335: : >fl-name 2 cells + ; 336: 337: Variable filelist 0 filelist ! 338: Create NoFile ," #load-file#" 339: 340: : loadfile ( -- adr ) 341: source-desc ?dup IF >fl-name ELSE NoFile THEN ; 342: 343: : sourcefilename ( -- adr len ) 344: loadfile count ; 345: 346: \ANSI : sourceline# 0 ; 347: 348: \ \ -------------------- path handling from kernel/paths.fs 349: 350: \ paths.fs path file handling 03may97jaw 351: 352: \ -Changing the search-path: 353: \ fpath+ <path> adds a directory to the searchpath 354: \ fpath= <path>|<path> makes complete now searchpath 355: \ seperator is | 356: \ .fpath displays the search path 357: \ remark I: 358: \ a ./ in the beginning of filename is expanded to the directory the 359: \ current file comes from. ./ can also be included in the search-path! 360: \ ~+/ loads from the current working directory 361: 362: \ remark II: 363: \ if there is no sufficient space for the search path increase it! 364: 365: 366: \ -Creating custom paths: 367: 368: \ It is possible to use the search mechanism on yourself. 369: 370: \ Make a buffer for the path: 371: \ create mypath 100 chars , \ maximum length (is checked) 372: \ 0 , \ real len 373: \ 100 chars allot \ space for path 374: \ use the same functions as above with: 375: \ mypath path+ 376: \ mypath path= 377: \ mypath .path 378: 379: \ do a open with the search path: 380: \ open-path-file ( adr len path -- fd adr len ior ) 381: \ the file is opened read-only; if the file is not found an error is generated 382: 383: \ questions to: wilke@jwdt.com 384: 385: [IFUNDEF] +place 386: : +place ( adr len adr ) 387: 2dup >r >r 388: dup c@ char+ + swap move 389: r> r> dup c@ rot + swap c! ; 390: [THEN] 391: 392: [IFUNDEF] place 393: : place ( c-addr1 u c-addr2 ) 394: 2dup c! char+ swap move ; 395: [THEN] 396: 397: \ if we have path handling, use this and the setup of it 398: [IFUNDEF] open-fpath-file 399: 400: create sourcepath 1024 chars , 0 , 1024 chars allot \ !! make this dynamic 401: sourcepath value fpath 402: 403: : also-path ( adr len path^ -- ) 404: >r 405: \ len check 406: r@ cell+ @ over + r@ @ u> ABORT" path buffer too small!" 407: \ copy into 408: tuck r@ cell+ dup @ cell+ + swap cmove 409: \ make delimiter 410: 0 r@ cell+ dup @ cell+ + 2 pick + c! 1 + r> cell+ +! 411: ; 412: 413: : only-path ( adr len path^ -- ) 414: dup 0 swap cell+ ! also-path ; 415: 416: : path+ ( path-addr "dir" -- ) \ gforth 417: \G Add the directory @var{dir} to the search path @var{path-addr}. 418: name rot also-path ; 419: 420: : fpath+ ( "dir" ) \ gforth 421: \G Add directory @var{dir} to the Forth search path. 422: fpath path+ ; 423: 424: : path= ( path-addr "dir1|dir2|dir3" ) \ gforth 425: \G Make a complete new search path; the path separator is |. 426: name 2dup bounds ?DO i c@ [char] | = IF 0 i c! THEN LOOP 427: rot only-path ; 428: 429: : fpath= ( "dir1|dir2|dir3" ) \ gforth 430: \G Make a complete new Forth search path; the path separator is |. 431: fpath path= ; 432: 433: : path>counted cell+ dup cell+ swap @ ; 434: 435: : next-path ( adr len -- adr2 len2 ) 436: 2dup 0 scan 437: dup 0= IF 2drop 0 -rot 0 -rot EXIT THEN 438: >r 1+ -rot r@ 1- -rot 439: r> - ; 440: 441: : previous-path ( path^ -- ) 442: dup path>counted 443: BEGIN tuck dup WHILE repeat ; 444: 445: : .path ( path-addr -- ) \ gforth 446: \G Display the contents of the search path @var{path-addr}. 447: path>counted 448: BEGIN next-path dup WHILE type space REPEAT 2drop 2drop ; 449: 450: : .fpath ( -- ) \ gforth 451: \G Display the contents of the Forth search path. 452: fpath .path ; 453: 454: : absolut-path? ( addr u -- flag ) \ gforth 455: \G A path is absolute if it starts with a / or a ~ (~ expansion), 456: \G or if it is in the form ./*, extended regexp: ^[/~]|./, or if 457: \G it has a colon as second character ("C:..."). Paths simply 458: \G containing a / are not absolute! 459: 2dup 2 u> swap 1+ c@ [char] : = and >r \ dos absoulte: c:/.... 460: over c@ [char] / = >r 461: over c@ [char] ~ = >r 462: \ 2dup 3 min S" ../" compare 0= r> or >r \ not catered for in expandtopic 463: 2 min S" ./" compare 0= 464: r> r> r> or or or ; 465: 466: Create ofile 0 c, 255 chars allot 467: Create tfile 0 c, 255 chars allot 468: 469: : pathsep? dup [char] / = swap [char] \ = or ; 470: 471: : need/ ofile dup c@ + c@ pathsep? 0= IF s" /" ofile +place THEN ; 472: 473: : extractpath ( adr len -- adr len2 ) 474: BEGIN dup WHILE 1- 475: 2dup + c@ pathsep? IF EXIT THEN 476: REPEAT ; 477: 478: : remove~+ ( -- ) 479: ofile count 3 min s" ~+/" compare 0= 480: IF 481: ofile count 3 /string ofile place 482: THEN ; 483: 484: : expandtopic ( -- ) \ stack effect correct? - anton 485: \ expands "./" into an absolute name 486: ofile count 2 min s" ./" compare 0= 487: IF 488: ofile count 1 /string tfile place 489: 0 ofile c! sourcefilename extractpath ofile place 490: ofile c@ IF need/ THEN 491: tfile count over c@ pathsep? IF 1 /string THEN 492: ofile +place 493: THEN ; 494: 495: : compact.. ( adr len -- adr2 len2 ) 496: \ deletes phrases like "xy/.." out of our directory name 2dec97jaw 497: over swap 498: BEGIN dup WHILE 499: dup >r '/ scan 2dup 4 min s" /../" compare 0= 500: IF 501: dup r> - >r 4 /string over r> + 4 - 502: swap 2dup + >r move dup r> over - 503: ELSE 504: rdrop dup 1 min /string 505: THEN 506: REPEAT drop over - ; 507: 508: : reworkdir ( -- ) 509: remove~+ 510: ofile count compact.. 511: nip ofile c! ; 512: 513: : open-ofile ( -- fid ior ) 514: \G opens the file whose name is in ofile 515: expandtopic reworkdir 516: ofile count r/o open-file ; 517: 518: : check-path ( adr1 len1 adr2 len2 -- fd 0 | 0 <>0 ) 519: 0 ofile ! >r >r ofile place need/ 520: r> r> ofile +place 521: open-ofile ; 522: 523: : open-path-file ( addr1 u1 path-addr -- wfileid addr2 u2 0 | ior ) \ gforth 524: \G Look in path @var{path-addr} for the file specified by @var{addr1 u1}. 525: \G If found, the resulting path and an open file descriptor 526: \G are returned. If the file is not found, @var{ior} is non-zero. 527: >r 528: 2dup absolut-path? 529: IF rdrop 530: ofile place open-ofile 531: dup 0= IF >r ofile count r> THEN EXIT 532: ELSE r> path>counted 533: BEGIN next-path dup 534: WHILE 5 pick 5 pick check-path 535: 0= IF >r 2drop 2drop r> ofile count 0 EXIT ELSE drop THEN 536: REPEAT 537: 2drop 2drop 2drop -38 538: THEN ; 539: 540: : open-fpath-file ( addr1 u1 -- wfileid addr2 u2 0 | ior ) \ gforth 541: \G Look in the Forth search path for the file specified by @var{addr1 u1}. 542: \G If found, the resulting path and an open file descriptor 543: \G are returned. If the file is not found, @var{ior} is non-zero. 544: fpath open-path-file ; 545: 546: fpath= ~+ 547: 548: [THEN] 549: 550: \ \ -------------------- include require 13may99jaw 551: 552: >CROSS 553: 554: : add-included-file ( adr len -- adr ) 555: dup >fl-name char+ allocate throw >r 556: file-list @ r@ ! r@ file-list ! 557: r@ >fl-name place r> ; 558: 559: : included? ( c-addr u -- f ) 560: file-list 561: BEGIN @ dup 562: WHILE >r 2dup r@ >fl-name count compare 0= 563: IF rdrop 2drop true EXIT THEN 564: r> 565: REPEAT 566: 2drop drop false ; 567: 568: false DebugFlag showincludedfiles 569: 570: : included1 ( fd adr u -- ) 571: \ include file adr u / fd 572: \ we don't use fd with include-file, because the forth system 573: \ doesn't know the name of the file to get a nice error report 574: [d?] showincludedfiles 575: IF cr ." Including: " 2dup type ." ..." THEN 576: rot close-file throw 577: source-desc >r 578: add-included-file to source-desc 579: sourcefilename 580: ['] included catch 581: r> to source-desc 582: throw ; 583: 584: : included ( adr len -- ) 585: cross-file-list to file-list 586: open-fpath-file throw 587: included1 ; 588: 589: : required ( adr len -- ) 590: cross-file-list to file-list 591: open-fpath-file throw \ 2dup cr ." R:" type 592: 2dup included? 593: IF 2drop close-file throw 594: ELSE included1 595: THEN ; 596: 597: : include bl word count included ; 598: 599: : require bl word count required ; 600: 601: 0 [IF] 602: 603: also forth definitions previous 604: 605: : included ( adr len -- ) included ; 606: 607: : required ( adr len -- ) required ; 608: 609: : include include ; 610: 611: : require require ; 612: 613: [THEN] 614: 615: >CROSS 616: hex 617: 618: \ \ -------------------- Error Handling 05aug97jaw 619: 620: \ Flags 621: 622: also forth definitions \ these values may be predefined before 623: \ the cross-compiler is loaded 624: 625: false DefaultValue stack-warn \ check on empty stack at any definition 626: false DefaultValue create-forward-warn \ warn on forward declaration of created words 627: 628: previous >CROSS 629: 630: : .dec 631: base @ decimal swap . base ! ; 632: 633: : .sourcepos 634: cr sourcefilename type ." :" 635: sourceline# .dec ; 636: 637: : warnhead 638: \G display error-message head 639: \G perhaps with linenumber and filename 640: .sourcepos ." Warning: " ; 641: 642: : empty? depth IF .sourcepos ." Stack not empty!" THEN ; 643: 644: stack-warn [IF] 645: : defempty? empty? ; 646: [ELSE] 647: : defempty? ; immediate 648: [THEN] 649: 650: \ \ -------------------- Compiler Plug Ins 01aug97jaw 651: 652: >CROSS 653: 654: \ Compiler States 655: 656: Variable comp-state 657: 0 Constant interpreting 658: 1 Constant compiling 659: 2 Constant resolving 660: 3 Constant assembling 661: 662: : compiling? comp-state @ compiling = ; 663: 664: : pi-undefined -1 ABORT" Plugin undefined" ; 665: 666: : Plugin ( -- : pluginname ) 667: Create 668: \ for normal cross-compiling only one action 669: \ exists, this fields are identical. For the instant 670: \ simulation environment we need, two actions for each plugin 671: \ the target one and the one that generates the simulation code 672: ['] pi-undefined , \ action 673: ['] pi-undefined , \ target plugin action 674: 8765 , \ plugin magic 675: DOES> perform ; 676: 677: Plugin DummyPlugin 678: 679: : 'PI ( -- addr : pluginname ) 680: ' >body dup 2 cells + @ 8765 <> ABORT" not a plugin" ; 681: 682: : plugin-of ( xt -- : pluginname ) 683: dup 'PI 2! ; 684: 685: : action-of ( xt -- : plunginname ) 686: 'PI cell+ ! ; 687: 688: : TPA ( -- : plugin ) 689: \ target plugin action 690: \ executes current target action of plugin 691: 'PI cell+ POSTPONE literal POSTPONE perform ; immediate 692: 693: Variable ppi-temp 0 ppi-temp ! 694: 695: : pa: 696: \g define plugin action 697: ppi-temp @ ABORT" pa: definition not closed" 698: 'PI ppi-temp ! :noname ; 699: 700: : ;pa 701: \g end a definition for plugin action 702: POSTPONE ; ppi-temp @ ! 0 ppi-temp ! ; immediate 703: 704: 705: Plugin dlit, ( d -- ) \ compile numerical value the target 706: Plugin lit, ( n -- ) 707: Plugin alit, ( n -- ) 708: 709: Plugin branch, ( target-addr -- ) \ compiles a branch 710: Plugin ?branch, ( target-addr -- ) \ compiles a ?branch 711: Plugin branchmark, ( -- branch-addr ) \ reserves room for a branch 712: Plugin ?branchmark, ( -- branch-addr ) \ reserves room for a ?branch 713: Plugin ?domark, ( -- branch-addr ) \ reserves room for a ?do branch 714: Plugin branchto, ( -- ) \ actual program position is target of a branch (do e.g. alignment) 715: ' NOOP plugin-of branchto, 716: Plugin branchtoresolve, ( branch-addr -- ) \ resolves a forward reference from branchmark 717: Plugin branchtomark, ( -- target-addr ) \ marks a branch destination 718: 719: Plugin colon, ( tcfa -- ) \ compiles call to tcfa at current position 720: Plugin xt, ( tcfa -- ) \ compiles xt 721: Plugin prim, ( tcfa -- ) \ compiles primitive invocation 722: Plugin colonmark, ( -- addr ) \ marks a colon call 723: Plugin colon-resolve ( tcfa addr -- ) 724: 725: Plugin addr-resolve ( target-addr addr -- ) 726: Plugin doer-resolve ( ghost res-pnt target-addr addr -- ghost res-pnt ) 727: 728: Plugin ncontrols? ( [ xn ... x1 ] n -- ) \ checks wheter n control structures are open 729: Plugin if, ( -- if-token ) 730: Plugin else, ( if-token -- if-token ) 731: Plugin then, ( if-token -- ) 732: Plugin ahead, 733: Plugin begin, 734: Plugin while, 735: Plugin until, 736: Plugin again, 737: Plugin repeat, 738: Plugin cs-swap ( x1 x2 -- x2 x1 ) 739: 740: Plugin case, ( -- n ) 741: Plugin of, ( n -- x1 n ) 742: Plugin endof, ( x1 n -- x2 n ) 743: Plugin endcase, ( x1 .. xn n -- ) 744: 745: Plugin do, ( -- do-token ) 746: Plugin ?do, ( -- ?do-token ) 747: Plugin for, ( -- for-token ) 748: Plugin loop, ( do-token / ?do-token -- ) 749: Plugin +loop, ( do-token / ?do-token -- ) 750: Plugin next, ( for-token ) 751: Plugin leave, ( -- ) 752: Plugin ?leave, ( -- ) 753: 754: [IFUNDEF] ca>native 755: Plugin ca>native 756: [THEN] 757: 758: Plugin doprim, \ compiles start of a primitive 759: Plugin docol, \ compiles start of a colon definition 760: Plugin doer, 761: Plugin fini, \ compiles end of definition ;s 762: Plugin doeshandler, 763: Plugin dodoes, 764: 765: Plugin colon-start 766: ' noop plugin-of colon-start 767: Plugin colon-end 768: ' noop plugin-of colon-end 769: 770: Plugin ]comp \ starts compilation 771: ' noop plugin-of ]comp 772: Plugin comp[ \ ends compilation 773: ' noop plugin-of comp[ 774: 775: Plugin t>body \ we need the system >body 776: \ and the target >body 777: 778: >TARGET 779: : >body t>body ; 780: 781: 782: \ Ghost Builder 06oct92py 783: 784: >CROSS 785: hex 786: \ Values for ghost magic 787: 4711 Constant <fwd> 4712 Constant <res> 788: 4713 Constant <imm> 4714 Constant <do:> 789: 4715 Constant <skip> 790: 791: \ Bitmask for ghost flags 792: 1 Constant <unique> 793: 2 Constant <primitive> 794: 795: \ FXIME: move this to general stuff? 796: : set-flag ( addr flag -- ) 797: over @ or swap ! ; 798: 799: : reset-flag ( addr flag -- ) 800: invert over @ and swap ! ; 801: 802: : get-flag ( addr flag -- f ) 803: swap @ and 0<> ; 804: 805: 806: Struct 807: 808: \ link to next ghost (always the first element) 809: cell% field >next-ghost 810: 811: \ type of ghost 812: cell% field >magic 813: 814: \ pointer where ghost is in target, or if unresolved 815: \ points to the where we have to resolve (linked-list) 816: cell% field >link 817: 818: \ execution semantics (while target compiling) of ghost 819: cell% field >exec 820: 821: \ compilation action of this ghost; this is what is 822: \ done to compile a call (or whatever) to this definition. 823: \ E.g. >comp contains the semantic of postpone s" 824: \ whereas >exec-compile contains the semantic of s" 825: cell% field >comp 826: 827: \ Compilation sematics (while parsing) of this ghost. E.g. 828: \ "\" will skip the rest of line. 829: \ These semantics are defined by Cond: and 830: \ if a word is made immediate in instant, then the >exec2 field 831: \ gets copied to here 832: cell% field >exec-compile 833: 834: \ Additional execution semantics of this ghost. This is used 835: \ for code generated by instant and for the doer-xt of created 836: \ words 837: cell% field >exec2 838: 839: cell% field >created 840: 841: \ the xt of the created ghost word itself 842: cell% field >ghost-xt 843: 844: \ pointer to the counted string of the assiciated 845: \ assembler label 846: cell% field >asm-name 847: 848: \ mapped primitives have a special address, so 849: \ we are able to detect them 850: cell% field >asm-dummyaddr 851: 852: \ for builder (create, variable...) words 853: \ the execution symantics of words built are placed here 854: \ this is a doer ghost or a dummy ghost 855: cell% field >do:ghost 856: 857: cell% field >ghost-flags 858: 859: cell% field >ghost-name 860: 861: End-Struct ghost-struct 862: 863: Variable ghost-list 864: 0 ghost-list ! 865: 866: Variable executed-ghost \ last executed ghost, needed in tcreate and gdoes> 867: \ Variable last-ghost \ last ghost that is created 868: Variable last-header-ghost \ last ghost definitions with header 869: 870: \ space for ghosts resolve structure 871: \ we create ghosts in a sepearte space 872: \ and not to the current host dp, because this 873: \ gives trouble with instant while compiling and creating 874: \ a ghost for a forward reference 875: \ BTW: we cannot allocate another memory region 876: \ because allot will check the overflow!! 877: Variable cross-space-dp 878: Create cross-space 250000 allot here 100 allot align 879: Constant cross-space-end 880: cross-space cross-space-dp ! 881: Variable cross-space-dp-orig 882: 883: : cross-space-used cross-space-dp @ cross-space - ; 884: 885: : >space ( -- ) 886: dp @ cross-space-dp-orig ! 887: cross-space-dp @ dp ! ; 888: 889: : space> ( -- ) 890: dp @ dup cross-space-dp ! 891: cross-space-end u> ABORT" CROSS: cross-space overflow" 892: cross-space-dp-orig @ dp ! ; 893: 894: \ this is just for debugging, to see this in the backtrace 895: : execute-exec execute ; 896: : execute-exec2 execute ; 897: : execute-exec-compile execute ; 898: 899: : NoExec 900: executed-ghost @ >exec2 @ 901: ?dup 902: IF execute-exec2 903: ELSE true ABORT" CROSS: Don't execute ghost, or immediate target word" 904: THEN ; 905: 906: Defer is-forward 907: Defer do-refered 908: 909: : prim-forward ( ghost -- ) 910: \ ." PF" .sourcepos 911: colonmark, 0 do-refered ; \ compile space for call 912: : doer-forward ( ghost -- ) 913: \ ." DF" .sourcepos 914: colonmark, 2 do-refered ; \ compile space for doer 915: ' prim-forward IS is-forward 916: 917: : (ghostheader) ( -- ) 918: ghost-list linked <fwd> , 0 , ['] NoExec , what's is-forward , 919: 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , ; 920: 921: : ghostheader ( -- ) (ghostheader) 0 , ; 922: 923: ' Ghosts >wordlist Constant ghosts-wordlist 924: 925: \ the current wordlist for ghost definitions in the host 926: ghosts-wordlist Value current-ghosts 927: 928: : Make-Ghost ( "name" -- ghost ) 929: >space 930: \ save current and create in ghost vocabulary 931: get-current >r current-ghosts set-current 932: >in @ Create >in ! 933: \ some forth systems like iForth need the immediate directly 934: \ after the word is created 935: \ restore current 936: r> set-current 937: here (ghostheader) 938: bl word count string, align 939: space> 940: \ set ghost-xt field by doing a search 941: dup >ghost-name count 942: current-ghosts search-wordlist 943: 0= ABORT" CROSS: Just created, must be there!" 944: over >ghost-xt ! 945: DOES> 946: dup executed-ghost ! 947: >exec @ execute-exec ; 948: 949: \ ghost words 14oct92py 950: \ changed: 10may93py/jaw 951: 952: Defer search-ghosts 953: 954: : (search-ghosts) ( adr len -- cfa true | 0 ) 955: current-ghosts search-wordlist ; 956: 957: ' (search-ghosts) IS search-ghosts 958: 959: : gsearch ( addr len -- ghost true | 0 ) 960: search-ghosts 961: dup IF swap >body swap THEN ; 962: 963: : gfind ( string -- ghost true / string false ) 964: \ searches for string in word-list ghosts 965: \ dup count type space 966: dup >r count gsearch 967: dup IF rdrop ELSE r> swap THEN ; 968: 969: : gdiscover ( xt -- ghost true | xt false ) 970: >r ghost-list 971: BEGIN @ dup 972: WHILE dup >magic @ <fwd> <> 973: IF dup >link @ r@ = 974: IF rdrop true EXIT THEN 975: THEN 976: REPEAT 977: drop r> false ; 978: 979: : xt>ghost ( xt -- ghost ) 980: gdiscover 0= ABORT" CROSS: ghost not found for this xt" ; 981: 982: : Ghost ( "name" -- ghost ) 983: >in @ bl word gfind IF nip EXIT THEN 984: drop >in ! Make-Ghost ; 985: 986: : >ghostname ( ghost -- adr len ) 987: >ghost-name count ; 988: 989: : forward? ( ghost -- flag ) 990: >magic @ <fwd> = ; 991: 992: : undefined? ( ghost -- flag ) 993: >magic @ dup <fwd> = swap <skip> = or ; 994: 995: : immediate? ( ghost -- flag ) 996: >magic @ <imm> = ; 997: 998: Variable TWarnings 999: TWarnings on 1000: Variable Exists-Warnings 1001: Exists-Warnings on 1002: 1003: : exists-warning ( ghost -- ghost ) 1004: TWarnings @ Exists-Warnings @ and 1005: IF dup >ghostname warnhead type ." exists " THEN ; 1006: 1007: \ : HeaderGhost Ghost ; 1008: 1009: Variable reuse-ghosts reuse-ghosts off 1010: 1011: : HeaderGhost ( "name" -- ghost ) 1012: >in @ 1013: bl word count 1014: \ 2dup type space 1015: current-ghosts search-wordlist 1016: IF >body dup undefined? reuse-ghosts @ or 1017: IF nip EXIT 1018: ELSE exists-warning 1019: THEN 1020: drop >in ! 1021: ELSE >in ! 1022: THEN 1023: \ we keep the execution semantics of the prviously 1024: \ defined words, this is a workaround 1025: \ for the redefined \ until vocs work 1026: Make-Ghost ; 1027: 1028: : .ghost ( ghost -- ) >ghostname type ; 1029: 1030: \ ' >ghostname ALIAS @name 1031: 1032: : findghost ( "ghostname" -- ghost ) 1033: bl word gfind 0= ABORT" CROSS: Ghost don't exists" ; 1034: 1035: : [G'] ( -- ghost : name ) 1036: \G ticks a ghost and returns its address 1037: findghost 1038: state @ IF postpone literal THEN ; immediate 1039: 1040: : g>xt ( ghost -- xt ) 1041: \G Returns the xt (cfa) of a ghost. Issues a warning if undefined. 1042: dup undefined? ABORT" CROSS: forward " >link @ ; 1043: 1044: : g>body ( ghost -- body ) 1045: \G Returns the body-address (pfa) of a ghost. 1046: \G Issues a warning if undefined (a forward-reference). 1047: g>xt X >body ; 1048: 1049: 1 Constant <label> 1050: 1051: Struct 1052: \ bitmask of address type (not used for now) 1053: cell% field addr-type 1054: \ if this address is an xt, this field points to the ghost 1055: cell% field addr-xt-ghost 1056: \ a bit mask that tells as what part of the cell 1057: \ is refenced from an address pointer, used for assembler generation 1058: cell% field addr-refs 1059: End-Struct addr-struct 1060: 1061: : %allocerase ( align size -- addr ) 1062: dup >r %alloc dup r> erase ; 1063: 1064: \ returns the addr struct, define it if 0 reference 1065: : define-addr-struct ( addr -- struct-addr ) 1066: dup @ ?dup IF nip EXIT THEN 1067: addr-struct %allocerase tuck swap ! ; 1068: 1069: >cross 1070: 1071: \ Predefined ghosts 12dec92py 1072: 1073: Ghost - drop \ need a ghost otherwise "-" would be treated as a number 1074: 1075: Ghost 0= drop 1076: Ghost branch Ghost ?branch 2drop 1077: Ghost unloop Ghost ;S 2drop 1078: Ghost lit Ghost ! 2drop 1079: Ghost noop drop 1080: Ghost over Ghost = Ghost drop 2drop drop 1081: Ghost 2drop drop 1082: Ghost 2dup drop 1083: Ghost call drop 1084: Ghost @ drop 1085: Ghost useraddr drop 1086: Ghost execute drop 1087: Ghost + drop 1088: Ghost decimal drop 1089: Ghost hex drop 1090: Ghost lit@ drop 1091: Ghost lit-perform drop 1092: Ghost lit+ drop 1093: Ghost does-exec drop 1094: 1095: ' doer-forward IS is-forward 1096: 1097: Ghost :docol Ghost :doesjump Ghost :dodoes 2drop drop 1098: Ghost :dovar drop 1099: 1100: 1101: ' prim-forward IS is-forward 1102: 1103: \ \ Parameter for target systems 06oct92py 1104: 1105: 1106: \ we define it ans like... 1107: wordlist Constant target-environment 1108: 1109: \ save information of current dictionary to restore with environ> 1110: Variable env-current 1111: 1112: : >ENVIRON get-current env-current ! target-environment set-current ; 1113: : ENVIRON> env-current @ set-current ; 1114: 1115: >TARGET 1116: 1117: : environment? ( addr len -- [ x ] true | false ) 1118: \G returns the content of environment variable and true or 1119: \G false if not present 1120: target-environment search-wordlist 1121: IF EXECUTE true ELSE false THEN ; 1122: 1123: : $has? ( addr len -- x | false ) 1124: \G returns the content of environment variable 1125: \G or false if not present 1126: T environment? H dup IF drop THEN ; 1127: 1128: : e? ( "name" -- x ) 1129: \G returns the content of environment variable. 1130: \G The variable is expected to exist. If not, issue an error. 1131: bl word count T environment? H 1132: 0= ABORT" environment variable not defined!" ; 1133: 1134: : has? ( "name" --- x | false ) 1135: \G returns the content of environment variable 1136: \G or false if not present 1137: bl word count T $has? H ; 1138: 1139: 1140: >ENVIRON get-order get-current swap 1+ set-order 1141: true SetValue compiler 1142: true SetValue cross 1143: true SetValue standard-threading 1144: >TARGET previous 1145: 1146: 0 1147: [IFDEF] mach-file drop mach-file count 1 [THEN] 1148: [IFDEF] machine-file drop machine-file 1 [THEN] 1149: [IF] included hex 1150: [ELSE] cr ." No machine description!" ABORT 1151: [THEN] 1152: 1153: >ENVIRON 1154: 1155: T has? ec H 1156: [IF] 1157: false DefaultValue relocate 1158: false DefaultValue file 1159: false DefaultValue OS 1160: false DefaultValue prims 1161: false DefaultValue floating 1162: false DefaultValue glocals 1163: false DefaultValue dcomps 1164: false DefaultValue hash 1165: false DefaultValue xconds 1166: false DefaultValue header 1167: false DefaultValue backtrace 1168: false DefaultValue new-input 1169: false DefaultValue peephole 1170: [THEN] 1171: 1172: true DefaultValue interpreter 1173: true DefaultValue ITC 1174: false DefaultValue rom 1175: true DefaultValue standardthreading 1176: 1177: >TARGET 1178: s" relocate" T environment? H 1179: \ JAW why set NIL to this?! 1180: [IF] drop \ SetValue NIL 1181: [ELSE] >ENVIRON X NIL SetValue relocate 1182: [THEN] 1183: >TARGET 1184: 1185: 0 Constant NIL 1186: 1187: >CROSS 1188: 1189: \ \ Create additional parameters 19jan95py 1190: 1191: \ currently cross only works for host machines with address-unit-bits 1192: \ eual to 8 because of s! and sc! 1193: \ but I start to query the environment just to modularize a little bit 1194: 1195: : check-address-unit-bits ( -- ) 1196: \ s" ADDRESS-UNIT-BITS" environment? 1197: \ IF 8 <> ELSE true THEN 1198: \ ABORT" ADDRESS-UNIT-BITS unknown or not equal to 8!" 1199: 1200: \ shit, this doesn't work because environment? is only defined for 1201: \ gforth.fi and not kernl???.fi 1202: ; 1203: 1204: check-address-unit-bits 1205: 8 Constant bits/byte \ we define: byte is address-unit 1206: 1207: 1 bits/byte lshift Constant maxbyte 1208: \ this sets byte size for the target machine, (probably right guess) jaw 1209: 1210: T 1211: NIL Constant TNIL 1212: cell Constant tcell 1213: cell<< Constant tcell<< 1214: cell>bit Constant tcell>bit 1215: bits/char Constant tbits/char 1216: bits/char H bits/byte T / 1217: Constant tchar 1218: float Constant tfloat 1219: 1 bits/char lshift Constant tmaxchar 1220: [IFUNDEF] bits/byte 1221: 8 Constant tbits/byte 1222: [ELSE] 1223: bits/byte Constant tbits/byte 1224: [THEN] 1225: H 1226: tbits/char bits/byte / Constant tbyte 1227: 1228: 1229: \ Variables 06oct92py 1230: 1231: Variable image 1232: Variable tlast TNIL tlast ! \ Last name field 1233: Variable tlastcfa \ Last code field 1234: Variable bit$ 1235: 1236: \ statistics 10jun97jaw 1237: 1238: Variable headers-named 0 headers-named ! 1239: Variable user-vars 0 user-vars ! 1240: 1241: : target>bitmask-size ( u1 -- u2 ) 1242: 1- tcell>bit rshift 1+ ; 1243: 1244: : allocatetarget ( size -- adr ) 1245: dup allocate ABORT" CROSS: No memory for target" 1246: swap over swap erase ; 1247: 1248: \ \ memregion.fs 1249: 1250: 1251: Variable last-defined-region \ pointer to last defined region 1252: Variable region-link \ linked list with all regions 1253: Variable mirrored-link \ linked list for mirrored regions 1254: 0 dup mirrored-link ! region-link ! 1255: 1256: 1257: : >rname 7 cells + ; 1258: : >rbm 4 cells + ; 1259: : >rmem 5 cells + ; 1260: : >rtype 6 cells + ; 1261: : >rlink 3 cells + ; 1262: : >rdp 2 cells + ; 1263: : >rlen cell+ ; 1264: : >rstart ; 1265: 1266: : (region) ( addr len region -- ) 1267: \G change startaddress and length of an existing region 1268: >r r@ last-defined-region ! 1269: r@ >rlen ! dup r@ >rstart ! r> >rdp ! ; 1270: 1271: : region ( addr len -- ) 1272: \G create a new region 1273: \ check whether predefined region exists 1274: save-input bl word find >r >r restore-input throw r> r> 0= 1275: IF \ make region 1276: drop 1277: save-input create restore-input throw 1278: here last-defined-region ! 1279: over ( startaddr ) , ( length ) , ( dp ) , 1280: region-link linked 0 , 0 , 0 , bl word count string, 1281: ELSE \ store new parameters in region 1282: bl word drop 1283: >body (region) 1284: THEN ; 1285: 1286: : borders ( region -- startaddr endaddr ) 1287: \G returns lower and upper region border 1288: dup >rstart @ swap >rlen @ over + ; 1289: 1290: : extent ( region -- startaddr len ) 1291: \G returns the really used area 1292: dup >rstart @ swap >rdp @ over - ; 1293: 1294: : area ( region -- startaddr totallen ) 1295: \G returns the total area 1296: dup >rstart @ swap >rlen @ ; 1297: 1298: : mirrored 1299: \G mark a region as mirrored 1300: mirrored-link 1301: align linked last-defined-region @ , ; 1302: 1303: : .addr ( u -- ) 1304: \G prints a 16 or 32 Bit nice hex value 1305: base @ >r hex 1306: tcell 2 u> 1307: IF s>d <# # # # # [char] . hold # # # # #> type 1308: ELSE s>d <# # # # # # #> type 1309: THEN r> base ! space ; 1310: 1311: : .regions \G display region statistic 1312: 1313: \ we want to list the regions in the right order 1314: \ so first collect all regions on stack 1315: 0 region-link @ 1316: BEGIN dup WHILE dup @ REPEAT drop 1317: BEGIN dup 1318: WHILE cr 1319: 0 >rlink - >r 1320: r@ >rname count tuck type 1321: 12 swap - 0 max spaces space 1322: ." Start: " r@ >rstart @ dup .addr space 1323: ." End: " r@ >rlen @ + .addr space 1324: ." DP: " r> >rdp @ .addr 1325: REPEAT drop 1326: s" rom" T $has? H 0= ?EXIT 1327: cr ." Mirrored:" 1328: mirrored-link @ 1329: BEGIN dup 1330: WHILE space dup cell+ @ >rname count type @ 1331: REPEAT drop cr 1332: ; 1333: 1334: \ -------- predefined regions 1335: 1336: 0 0 region address-space 1337: \ total memory addressed and used by the target system 1338: 1339: 0 0 region dictionary 1340: \ rom area for the compiler 1341: 1342: T has? rom H 1343: [IF] 1344: 0 0 region ram-dictionary mirrored 1345: \ ram area for the compiler 1346: [ELSE] 1347: ' dictionary ALIAS ram-dictionary 1348: [THEN] 1349: 1350: 0 0 region return-stack 1351: 1352: 0 0 region data-stack 1353: 1354: 0 0 region tib-region 1355: 1356: ' dictionary ALIAS rom-dictionary 1357: 1358: 1359: : setup-target ( -- ) \G initialize target's memory space 1360: s" rom" T $has? H 1361: IF \ check for ram and rom... 1362: \ address-space area nip 0<> 1363: ram-dictionary area nip 0<> 1364: rom-dictionary area nip 0<> 1365: and 0= 1366: ABORT" CROSS: define address-space, rom- , ram-dictionary, with rom-support!" 1367: THEN 1368: address-space area nip 1369: IF 1370: address-space area 1371: ELSE 1372: dictionary area 1373: THEN 1374: nip 0= 1375: ABORT" CROSS: define at least address-space or dictionary!!" 1376: 1377: \ allocate target for each region 1378: region-link 1379: BEGIN @ dup 1380: WHILE dup 1381: 0 >rlink - >r 1382: r@ >rlen @ 1383: IF \ allocate mem 1384: r@ >rlen @ allocatetarget dup image ! 1385: r@ >rmem ! 1386: 1387: r@ >rlen @ 1388: target>bitmask-size allocatetarget 1389: dup bit$ ! 1390: r@ >rbm ! 1391: 1392: r@ >rlen @ 1393: tcell / 1+ cells allocatetarget r@ >rtype ! 1394: 1395: rdrop 1396: ELSE r> drop THEN 1397: REPEAT drop ; 1398: 1399: \ MakeKernel 22feb99jaw 1400: 1401: : makekernel ( targetsize -- ) 1402: \G convenience word to setup the memory of the target 1403: \G used by main.fs of the c-engine based systems 1404: 100 swap dictionary (region) 1405: setup-target ; 1406: 1407: >MINIMAL 1408: : makekernel makekernel ; 1409: >CROSS 1410: 1411: \ \ switched tdp for rom support 03jun97jaw 1412: 1413: \ second value is here to store some maximal value for statistics 1414: \ tempdp is also embedded here but has nothing to do with rom support 1415: \ (needs switched dp) 1416: 1417: variable tempdp 0 , \ temporary dp for resolving 1418: variable tempdp-save 1419: 1420: 0 [IF] 1421: variable romdp 0 , \ Dictionary-Pointer for ramarea 1422: variable ramdp 0 , \ Dictionary-Pointer for romarea 1423: 1424: \ 1425: variable sramdp \ start of ram-area for forth 1426: variable sromdp \ start of rom-area for forth 1427: 1428: [THEN] 1429: 1430: 1431: 0 value tdp 1432: variable fixed \ flag: true: no automatic switching 1433: \ false: switching is done automatically 1434: 1435: \ Switch-Policy: 1436: \ 1437: \ a header is always compiled into rom 1438: \ after a created word (create and variable) compilation goes to ram 1439: \ 1440: \ Be careful: If you want to make the data behind create into rom 1441: \ you have to put >rom before create! 1442: 1443: variable constflag constflag off 1444: 1445: : activate ( region -- ) 1446: \G next code goes to this region 1447: >rdp to tdp ; 1448: 1449: : (switchram) 1450: fixed @ ?EXIT s" rom" T $has? H 0= ?EXIT 1451: ram-dictionary activate ; 1452: 1453: : switchram 1454: constflag @ 1455: IF constflag off ELSE (switchram) THEN ; 1456: 1457: : switchrom 1458: fixed @ ?EXIT rom-dictionary activate ; 1459: 1460: : >tempdp ( addr -- ) 1461: tdp tempdp-save ! tempdp to tdp tdp ! ; 1462: : tempdp> ( -- ) 1463: tempdp-save @ to tdp ; 1464: 1465: : >ram fixed off (switchram) fixed on ; 1466: : >rom fixed off switchrom fixed on ; 1467: : >auto fixed off switchrom ; 1468: 1469: 1470: 1471: \ : romstart dup sromdp ! romdp ! ; 1472: \ : ramstart dup sramdp ! ramdp ! ; 1473: 1474: \ default compilation goes to rom 1475: \ when romable support is off, only the rom switch is used (!!) 1476: >auto 1477: 1478: : there tdp @ ; 1479: 1480: >TARGET 1481: 1482: \ \ Target Memory Handling 1483: 1484: \ Byte ordering and cell size 06oct92py 1485: 1486: : cell+ tcell + ; 1487: : cells tcell<< lshift ; 1488: : chars tchar * ; 1489: : char+ tchar + ; 1490: : floats tfloat * ; 1491: 1492: >CROSS 1493: : cell/ tcell<< rshift ; 1494: >TARGET 1495: 20 CONSTANT bl 1496: \ TNIL Constant NIL 1497: 1498: >CROSS 1499: 1500: bigendian 1501: [IF] 1502: : DS! ( d addr -- ) tcell bounds swap 1- 1503: DO maxbyte ud/mod rot I c! -1 +LOOP 2drop ; 1504: : DS@ ( addr -- d ) >r 0 0 r> tcell bounds 1505: DO maxbyte * swap maxbyte um* rot + swap I c@ + swap LOOP ; 1506: : Sc! ( n addr -- ) >r s>d r> tchar bounds swap 1- 1507: DO maxbyte ud/mod rot I c! -1 +LOOP 2drop ; 1508: : Sc@ ( addr -- n ) >r 0 0 r> tchar bounds 1509: DO maxbyte * swap maxbyte um* rot + swap I c@ + swap LOOP d>s ; 1510: [ELSE] 1511: : DS! ( d addr -- ) tcell bounds 1512: DO maxbyte ud/mod rot I c! LOOP 2drop ; 1513: : DS@ ( addr -- n ) >r 0 0 r> tcell bounds swap 1- 1514: DO maxbyte * swap maxbyte um* rot + swap I c@ + swap -1 +LOOP ; 1515: : Sc! ( n addr -- ) >r s>d r> tchar bounds 1516: DO maxbyte ud/mod rot I c! LOOP 2drop ; 1517: : Sc@ ( addr -- n ) >r 0 0 r> tchar bounds swap 1- 1518: DO maxbyte * swap maxbyte um* rot + swap I c@ + swap -1 +LOOP d>s ; 1519: [THEN] 1520: 1521: : S! ( n addr -- ) >r s>d r> DS! ; 1522: : S@ ( addr -- n ) DS@ d>s ; 1523: 1524: : taddr>region ( taddr -- region | 0 ) 1525: \G finds for a target-address the correct region 1526: \G returns 0 if taddr is not in range of a target memory region 1527: region-link 1528: BEGIN @ dup 1529: WHILE dup >r 1530: 0 >rlink - >r 1531: r@ >rlen @ 1532: IF dup r@ borders within 1533: IF r> r> drop nip EXIT THEN 1534: THEN 1535: r> drop 1536: r> 1537: REPEAT 1538: 2drop 0 ; 1539: 1540: : taddr>region-abort ( taddr -- region | 0 ) 1541: dup taddr>region dup 0= 1542: IF drop cr ." Wrong address: " .addr 1543: -1 ABORT" Address out of range!" 1544: THEN nip ; 1545: 1546: : (>regionimage) ( taddr -- 'taddr ) 1547: dup 1548: \ find region we want to address 1549: taddr>region-abort 1550: >r 1551: \ calculate offset in region 1552: r@ >rstart @ - 1553: \ add regions real address in our memory 1554: r> >rmem @ + ; 1555: 1556: : (>regionbm) ( taddr -- 'taddr bitmaskbaseaddr ) 1557: dup 1558: \ find region we want to address 1559: taddr>region-abort 1560: >r 1561: \ calculate offset in region 1562: r@ >rstart @ - 1563: \ add regions real address in our memory 1564: r> >rbm @ ; 1565: 1566: : (>regiontype) ( taddr -- 'taddr ) 1567: dup 1568: \ find region we want to address 1569: taddr>region-abort 1570: >r 1571: \ calculate offset in region 1572: r@ >rstart @ - tcell / cells 1573: \ add regions real address in our memory 1574: r> >rtype @ + ; 1575: 1576: \ Bit string manipulation 06oct92py 1577: \ 9may93jaw 1578: CREATE Bittable 80 c, 40 c, 20 c, 10 c, 8 c, 4 c, 2 c, 1 c, 1579: : bits ( n -- n ) chars Bittable + c@ ; 1580: 1581: : >bit ( addr n -- c-addr mask ) 8 /mod rot + swap bits ; 1582: : +bit ( addr n -- ) >bit over c@ or swap c! ; 1583: : -bit ( addr n -- ) >bit invert over c@ and swap c! ; 1584: 1585: : @relbit ( taddr -- f ) (>regionbm) swap cell/ >bit swap c@ and ; 1586: 1587: : (relon) ( taddr -- ) 1588: [ [IFDEF] fd-relocation-table ] 1589: s" +" fd-relocation-table write-file throw 1590: dup s>d <# #s #> fd-relocation-table write-line throw 1591: [ [THEN] ] 1592: (>regionbm) swap cell/ +bit ; 1593: 1594: : (reloff) ( taddr -- ) 1595: [ [IFDEF] fd-relocation-table ] 1596: s" -" fd-relocation-table write-file throw 1597: dup s>d <# #s #> fd-relocation-table write-line throw 1598: [ [THEN] ] 1599: (>regionbm) swap cell/ -bit ; 1600: 1601: : (>image) ( taddr -- absaddr ) image @ + ; 1602: 1603: DEFER >image 1604: DEFER relon 1605: DEFER reloff 1606: DEFER correcter 1607: 1608: T has? relocate H 1609: [IF] 1610: ' (relon) IS relon 1611: ' (reloff) IS reloff 1612: ' (>regionimage) IS >image 1613: [ELSE] 1614: ' drop IS relon 1615: ' drop IS reloff 1616: ' (>regionimage) IS >image 1617: [THEN] 1618: 1619: \ Target memory access 06oct92py 1620: 1621: : align+ ( taddr -- rest ) 1622: tcell tuck 1- and - [ tcell 1- ] Literal and ; 1623: : cfalign+ ( taddr -- rest ) 1624: \ see kernel.fs:cfaligned 1625: /maxalign tuck 1- and - [ /maxalign 1- ] Literal and ; 1626: 1627: >TARGET 1628: : aligned ( taddr -- ta-addr ) dup align+ + ; 1629: \ assumes cell alignment granularity (as GNU C) 1630: 1631: : cfaligned ( taddr1 -- taddr2 ) 1632: \ see kernel.fs 1633: dup cfalign+ + ; 1634: 1635: : @ ( taddr -- w ) >image S@ ; 1636: : ! ( w taddr -- ) >image S! ; 1637: : c@ ( taddr -- char ) >image Sc@ ; 1638: : c! ( char taddr -- ) >image Sc! ; 1639: : 2@ ( taddr -- x1 x2 ) T dup cell+ @ swap @ H ; 1640: : 2! ( x1 x2 taddr -- ) T tuck ! cell+ ! H ; 1641: 1642: \ Target compilation primitives 06oct92py 1643: \ included A! 16may93jaw 1644: 1645: : here ( -- there ) there ; 1646: : allot ( n -- ) tdp +! ; 1647: : , ( w -- ) T here H tcell T allot ! H ; 1648: : c, ( char -- ) T here H tchar T allot c! H ; 1649: : align ( -- ) T here H align+ 0 ?DO bl T c, H tchar +LOOP ; 1650: : cfalign ( -- ) 1651: T here H cfalign+ 0 ?DO bl T c, H tchar +LOOP ; 1652: 1653: : >address dup 0>= IF tbyte / THEN ; \ ?? jaw 1654: : A! swap >address swap dup relon T ! H ; 1655: : A, ( w -- ) >address T here H relon T , H ; 1656: 1657: \ high-level ghosts 1658: 1659: >CROSS 1660: 1661: : call-forward ( ghost -- ) 1662: \ ." CF" .sourcepos 1663: there 0 colon, 0 do-refered ; 1664: ' call-forward IS is-forward 1665: 1666: Ghost (do) Ghost (?do) 2drop 1667: Ghost (for) drop 1668: Ghost (loop) Ghost (+loop) 2drop 1669: Ghost (next) drop 1670: Ghost (does>) Ghost (compile) 2drop 1671: Ghost (.") Ghost (S") Ghost (ABORT") 2drop drop 1672: Ghost (C") drop 1673: Ghost ' drop 1674: 1675: \ ' prim-forward IS is-forward 1676: 1677: \ user ghosts 1678: 1679: Ghost state drop 1680: 1681: \ \ -------------------- Host/Target copy etc. 29aug01jaw 1682: 1683: 1684: >CROSS 1685: 1686: : TD! >image DS! ; 1687: : TD@ >image DS@ ; 1688: 1689: : th-count ( taddr -- host-addr len ) 1690: \G returns host address of target string 1691: assert1( tbyte 1 = ) 1692: dup X c@ swap X char+ >image swap ; 1693: 1694: : ht-move ( haddr taddr len -- ) 1695: \G moves data from host-addr to destination in target-addr 1696: \G character by character 1697: swap -rot bounds ?DO I c@ over X c! X char+ LOOP drop ; 1698: 1699: 2Variable last-string 1700: 1701: : ht-string, ( addr count -- ) 1702: dup there swap last-string 2! 1703: dup T c, H bounds ?DO I c@ T c, H LOOP ; 1704: 1705: >TARGET 1706: 1707: : count dup X c@ swap X char+ swap ; 1708: 1709: : on -1 -1 rot TD! ; 1710: : off T 0 swap ! H ; 1711: 1712: : tcmove ( source dest len -- ) 1713: \G cmove in target memory 1714: tchar * bounds 1715: ?DO dup T c@ H I T c! H 1+ 1716: tchar +LOOP drop ; 1717: 1718: : td, ( d -- ) 1719: \G Store a host value as one cell into the target 1720: there tcell X allot TD! ; 1721: 1722: \ \ Load Assembler 1723: 1724: >TARGET 1725: H also Forth definitions 1726: 1727: \ FIXME: should we include the assembler really in the forth 1728: \ dictionary?!?!?!? This conflicts with the existing assembler 1729: \ of the host forth system!! 1730: [IFDEF] asm-include asm-include [THEN] hex 1731: 1732: previous 1733: 1734: 1735: >CROSS 1736: 1737: : (cc) T a, H ; ' (cc) plugin-of colon, 1738: : (xt) T a, H ; ' (xt) plugin-of xt, 1739: : (prim) T a, H ; ' (prim) plugin-of prim, 1740: 1741: : (cr) >tempdp colon, tempdp> ; ' (cr) plugin-of colon-resolve 1742: : (ar) T ! H ; ' (ar) plugin-of addr-resolve 1743: : (dr) ( ghost res-pnt target-addr addr ) 1744: >tempdp drop over 1745: dup >magic @ <do:> = 1746: IF doer, 1747: ELSE dodoes, 1748: THEN 1749: tempdp> ; ' (dr) plugin-of doer-resolve 1750: 1751: : (cm) ( -- addr ) 1752: T here align H 1753: -1 xt, ; ' (cm) plugin-of colonmark, 1754: 1755: >TARGET 1756: : compile, ( xt -- ) 1757: dup xt>ghost >comp @ EXECUTE ; 1758: >CROSS 1759: 1760: \ resolve structure 1761: 1762: : >next ; \ link to next field 1763: : >tag cell+ ; \ indecates type of reference: 0: call, 1: address, 2: doer 1764: : >taddr cell+ cell+ ; 1765: : >ghost 3 cells + ; 1766: : >file 4 cells + ; 1767: : >line 5 cells + ; 1768: 1769: : (refered) ( ghost addr tag -- ) 1770: \G creates a reference to ghost at address taddr 1771: >space 1772: rot >link linked 1773: ( taddr tag ) , 1774: ( taddr ) , 1775: last-header-ghost @ , 1776: loadfile , 1777: sourceline# , 1778: space> 1779: ; 1780: 1781: ' (refered) IS do-refered 1782: 1783: : refered ( ghost tag -- ) 1784: \G creates a resolve structure 1785: T here aligned H swap (refered) 1786: ; 1787: 1788: : killref ( addr ghost -- ) 1789: \G kills a forward reference to ghost at position addr 1790: \G this is used to eleminate a :dovar refence after making a DOES> 1791: dup >magic @ <fwd> <> IF 2drop EXIT THEN 1792: swap >r >link 1793: BEGIN dup @ dup ( addr last this ) 1794: WHILE dup >taddr @ r@ = 1795: IF @ over ! 1796: ELSE nip THEN 1797: REPEAT rdrop 2drop 1798: ; 1799: 1800: Defer resolve-warning 1801: 1802: : reswarn-test ( ghost res-struct -- ghost res-struct ) 1803: over cr ." Resolving " .ghost dup ." in " >ghost @ .ghost ; 1804: 1805: : reswarn-forward ( ghost res-struct -- ghost res-struct ) 1806: over warnhead .ghost dup ." is referenced in " 1807: >ghost @ .ghost ; 1808: 1809: \ ' reswarn-test IS resolve-warning 1810: 1811: \ resolve 14oct92py 1812: 1813: : resolve-loop ( ghost resolve-list tcfa -- ) 1814: >r 1815: BEGIN dup WHILE 1816: \ dup >tag @ 2 = IF reswarn-forward THEN 1817: resolve-warning 1818: r@ over >taddr @ 1819: 2 pick >tag @ 1820: CASE 0 OF colon-resolve ENDOF 1821: 1 OF addr-resolve ENDOF 1822: 2 OF doer-resolve ENDOF 1823: ENDCASE 1824: @ \ next list element 1825: REPEAT 2drop rdrop 1826: ; 1827: 1828: \ : resolve-loop ( ghost tcfa -- ghost tcfa ) 1829: \ >r dup >link @ 1830: \ BEGIN dup WHILE dup T @ H r@ rot T ! H REPEAT drop r> ; 1831: 1832: \ exists 9may93jaw 1833: 1834: : exists ( ghost tcfa -- ) 1835: \G print warning and set new target link in ghost 1836: swap exists-warning 1837: >link ! ; 1838: 1839: : colon-resolved ( ghost -- ) 1840: >link @ colon, ; \ compile-call 1841: 1842: : prim-resolved ( ghost -- ) 1843: >link @ prim, ; 1844: 1845: 0 Value resolved 1846: 1847: : resolve ( ghost tcfa -- ) 1848: \G resolve referencies to ghost with tcfa 1849: dup taddr>region 0<> IF 1850: 2dup (>regiontype) define-addr-struct addr-xt-ghost 1851: 1852: \ we define new address only if empty 1853: \ this is for not to take over the alias ghost 1854: \ (different ghost, but identical xt) 1855: \ but the very first that really defines it 1856: dup @ 0= IF ! ELSE 2drop THEN 1857: THEN 1858: 1859: \ is ghost resolved?, second resolve means another 1860: \ definition with the same name 1861: over undefined? 0= IF exists EXIT THEN 1862: \ get linked-list 1863: swap >r r@ >link @ swap \ ( list tcfa R: ghost ) 1864: \ mark ghost as resolved 1865: dup r@ >link ! <res> r@ >magic ! 1866: r@ to resolved 1867: r@ >comp @ ['] prim-forward = IF 1868: ['] prim-resolved r@ >comp ! THEN 1869: r@ >comp @ what's is-forward = IF 1870: ['] prim-resolved r@ >comp ! THEN 1871: \ loop through forward referencies 1872: r> -rot 1873: comp-state @ >r Resolving comp-state ! 1874: resolve-loop 1875: r> comp-state ! 1876: 1877: ['] noop IS resolve-warning 1878: ; 1879: 1880: \ gexecute ghost, 01nov92py 1881: 1882: : (gexecute) ( ghost -- ) 1883: dup >comp @ EXECUTE ; 1884: 1885: : gexecute ( ghost -- ) 1886: dup >magic @ <imm> = ABORT" CROSS: gexecute on immediate word" 1887: (gexecute) ; 1888: 1889: : addr, ( ghost -- ) 1890: dup forward? IF 1 refered 0 T a, H ELSE >link @ T a, H THEN ; 1891: 1892: \ .unresolved 11may93jaw 1893: 1894: variable ResolveFlag 1895: 1896: \ ?touched 11may93jaw 1897: 1898: : ?touched ( ghost -- flag ) dup forward? swap >link @ 1899: 0 <> and ; 1900: 1901: : .forwarddefs ( ghost -- ) 1902: ." appeared in:" 1903: >link 1904: BEGIN @ dup 1905: WHILE cr 5 spaces 1906: dup >ghost @ .ghost 1907: ." file " dup >file @ ?dup IF count type ELSE ." CON" THEN 1908: ." line " dup >line @ .dec 1909: REPEAT 1910: drop ; 1911: 1912: : ?resolved ( ghost -- ) 1913: dup ?touched 1914: IF ResolveFlag on 1915: dup cr .ghost .forwarddefs 1916: ELSE drop 1917: THEN ; 1918: 1919: : .unresolved ( -- ) 1920: ResolveFlag off cr ." Unresolved: " 1921: ghost-list 1922: BEGIN @ dup 1923: WHILE dup ?resolved 1924: REPEAT drop ResolveFlag @ 1925: IF 1926: -1 abort" Unresolved words!" 1927: ELSE 1928: ." Nothing!" 1929: THEN 1930: cr ; 1931: 1932: : .stats 1933: base @ >r decimal 1934: cr ." named Headers: " headers-named @ . 1935: r> base ! ; 1936: 1937: >MINIMAL 1938: 1939: : .unresolved .unresolved ; 1940: 1941: >CROSS 1942: \ Header states 12dec92py 1943: 1944: \ : flag! ( 8b -- ) tlast @ dup >r T c@ xor r> c! H ; 1945: bigendian [IF] 0 [ELSE] tcell 1- [THEN] Constant flag+ 1946: : flag! ( w -- ) tlast @ flag+ + dup >r T c@ xor r> c! H ; 1947: 1948: VARIABLE ^imm 1949: 1950: \ !! should be target wordsize specific 1951: $80 constant alias-mask 1952: $40 constant immediate-mask 1953: $20 constant restrict-mask 1954: 1955: >TARGET 1956: : immediate immediate-mask flag! 1957: ^imm @ @ dup <imm> = IF drop EXIT THEN 1958: <res> <> ABORT" CROSS: Cannot immediate a unresolved word" 1959: <imm> ^imm @ ! ; 1960: : restrict restrict-mask flag! ; 1961: 1962: : isdoer 1963: \G define a forth word as doer, this makes obviously only sence on 1964: \G forth processors such as the PSC1000 1965: <do:> last-header-ghost @ >magic ! ; 1966: >CROSS 1967: 1968: \ Target Header Creation 01nov92py 1969: 1970: : ht-lstring, ( addr count -- ) 1971: dup T , H bounds ?DO I c@ T c, H LOOP ; 1972: 1973: >TARGET 1974: : name, ( "name" -- ) bl word count ht-lstring, X cfalign ; 1975: : view, ( -- ) ( dummy ) ; 1976: >CROSS 1977: 1978: \ Target Document Creation (goes to crossdoc.fd) 05jul95py 1979: 1980: s" ./doc/crossdoc.fd" r/w create-file throw value doc-file-id 1981: \ contains the file-id of the documentation file 1982: 1983: : T-\G ( -- ) 1984: source >in @ /string doc-file-id write-line throw 1985: postpone \ ; 1986: 1987: Variable to-doc to-doc on 1988: 1989: : cross-doc-entry ( -- ) 1990: to-doc @ tlast @ 0<> and \ not an anonymous (i.e. noname) header 1991: IF 1992: s" " doc-file-id write-line throw 1993: s" make-doc " doc-file-id write-file throw 1994: 1995: Last-Header-Ghost @ >ghostname doc-file-id write-file throw 1996: >in @ 1997: [char] ( parse 2drop 1998: [char] ) parse doc-file-id write-file throw 1999: s" )" doc-file-id write-file throw 2000: [char] \ parse 2drop 2001: T-\G 2002: >in ! 2003: THEN ; 2004: 2005: \ Target TAGS creation 2006: 2007: s" kernel.TAGS" r/w create-file throw value tag-file-id 2008: s" kernel.tags" r/w create-file throw value vi-tag-file-id 2009: \ contains the file-id of the tags file 2010: 2011: Create tag-beg 2 c, 7F c, bl c, 2012: Create tag-end 2 c, bl c, 01 c, 2013: Create tag-bof 1 c, 0C c, 2014: Create tag-tab 1 c, 09 c, 2015: 2016: 2variable last-loadfilename 0 0 last-loadfilename 2! 2017: 2018: : put-load-file-name ( -- ) 2019: sourcefilename last-loadfilename 2@ d<> 2020: IF 2021: tag-bof count tag-file-id write-line throw 2022: sourcefilename 2dup 2023: tag-file-id write-file throw 2024: last-loadfilename 2! 2025: s" ,0" tag-file-id write-line throw 2026: THEN ; 2027: 2028: : cross-gnu-tag-entry ( -- ) 2029: tlast @ 0<> \ not an anonymous (i.e. noname) header 2030: IF 2031: put-load-file-name 2032: source >in @ min tag-file-id write-file throw 2033: tag-beg count tag-file-id write-file throw 2034: Last-Header-Ghost @ >ghostname tag-file-id write-file throw 2035: tag-end count tag-file-id write-file throw 2036: base @ decimal sourceline# 0 <# #s #> tag-file-id write-file throw 2037: \ >in @ 0 <# #s [char] , hold #> tag-file-id write-line throw 2038: s" ,0" tag-file-id write-line throw 2039: base ! 2040: THEN ; 2041: 2042: : cross-vi-tag-entry ( -- ) 2043: tlast @ 0<> \ not an anonymous (i.e. noname) header 2044: IF 2045: sourcefilename vi-tag-file-id write-file throw 2046: tag-tab count vi-tag-file-id write-file throw 2047: Last-Header-Ghost @ >ghostname vi-tag-file-id write-file throw 2048: tag-tab count vi-tag-file-id write-file throw 2049: s" /^" vi-tag-file-id write-file throw 2050: source vi-tag-file-id write-file throw 2051: s" $/" vi-tag-file-id write-line throw 2052: THEN ; 2053: 2054: : cross-tag-entry ( -- ) 2055: cross-gnu-tag-entry 2056: cross-vi-tag-entry ; 2057: 2058: \ Check for words 2059: 2060: Defer skip? ' false IS skip? 2061: 2062: : skipdef ( "name" -- ) 2063: \G skip definition of an undefined word in undef-words and 2064: \G all-words mode 2065: Ghost dup forward? 2066: IF >magic <skip> swap ! 2067: ELSE drop THEN ; 2068: 2069: : tdefined? ( "name" -- flag ) 2070: Ghost undefined? 0= ; 2071: 2072: : defined2? ( "name" -- flag ) 2073: \G return true for anything else than forward, even for <skip> 2074: \G that's what we want 2075: Ghost forward? 0= ; 2076: 2077: : forced? ( "name" -- flag ) 2078: \G return ture if it is a foreced skip with defskip 2079: Ghost >magic @ <skip> = ; 2080: 2081: : needed? ( -- flag ) \ name 2082: \G returns a false flag when 2083: \G a word is not defined 2084: \G a forward reference exists 2085: \G so the definition is not skipped! 2086: bl word gfind 2087: IF dup undefined? 2088: nip 2089: 0= 2090: ELSE drop true THEN ; 2091: 2092: : doer? ( -- flag ) \ name 2093: Ghost >magic @ <do:> = ; 2094: 2095: : skip-defs ( -- ) 2096: BEGIN refill WHILE source -trailing nip 0= UNTIL THEN ; 2097: 2098: \ Target header creation 2099: 2100: Variable NoHeaderFlag 2101: NoHeaderFlag off 2102: 2103: : 0.r ( n1 n2 -- ) 2104: base @ >r hex 2105: 0 swap <# 0 ?DO # LOOP #> type 2106: r> base ! ; 2107: 2108: : .sym ( adr len -- ) 2109: \G escapes / and \ to produce sed output 2110: bounds 2111: DO I c@ dup 2112: CASE [char] / OF drop ." \/" ENDOF 2113: [char] \ OF drop ." \\" ENDOF 2114: dup OF emit ENDOF 2115: ENDCASE 2116: LOOP ; 2117: 2118: Defer setup-execution-semantics 2119: 0 Value lastghost 2120: 2121: : (THeader ( "name" -- ghost ) 2122: \ >in @ bl word count type 2 spaces >in ! 2123: \ wordheaders will always be compiled to rom 2124: switchrom 2125: \ build header in target 2126: NoHeaderFlag @ 2127: IF NoHeaderFlag off 2128: ELSE 2129: T align H view, 2130: tlast @ dup 0> IF tcell - THEN T A, H there tlast ! 2131: 1 headers-named +! \ Statistic 2132: >in @ T name, H >in ! 2133: THEN 2134: T cfalign here H tlastcfa ! 2135: \ Old Symbol table sed-script 2136: \ >in @ cr ." sym:s/CFA=" there 4 0.r ." /" bl word count .sym ." /g" cr >in ! 2137: HeaderGhost 2138: \ output symbol table to extra file 2139: [ [IFDEF] fd-symbol-table ] 2140: base @ hex there s>d <# 8 0 DO # LOOP #> fd-symbol-table write-file throw base ! 2141: s" :" fd-symbol-table write-file throw 2142: dup >ghostname fd-symbol-table write-line throw 2143: [ [THEN] ] 2144: dup Last-Header-Ghost ! dup to lastghost 2145: dup >magic ^imm ! \ a pointer for immediate 2146: alias-mask flag! 2147: cross-doc-entry cross-tag-entry 2148: setup-execution-semantics 2149: ; 2150: 2151: \ this is the resolver information from ":" 2152: \ resolving is done by ";" 2153: Variable ;Resolve 1 cells allot 2154: 2155: : hereresolve ( ghost -- ) 2156: there resolve 0 ;Resolve ! ; 2157: 2158: : Theader ( "name" -- ghost ) 2159: (THeader dup hereresolve ; 2160: 2161: Variable aprim-nr -20 aprim-nr ! 2162: 2163: : copy-execution-semantics ( ghost-from ghost-dest -- ) 2164: >r 2165: dup >exec @ r@ >exec ! 2166: dup >comp @ r@ >comp ! 2167: dup >exec2 @ r@ >exec2 ! 2168: dup >exec-compile @ r@ >exec-compile ! 2169: dup >ghost-xt @ r@ >ghost-xt ! 2170: dup >created @ r@ >created ! 2171: rdrop drop ; 2172: 2173: >TARGET 2174: 2175: : Alias ( cfa -- ) \ name 2176: >in @ skip? IF 2drop EXIT THEN >in ! 2177: (THeader ( S xt ghost ) 2178: 2dup swap xt>ghost swap copy-execution-semantics 2179: over resolve T A, H alias-mask flag! ; 2180: 2181: Variable last-prim-ghost 2182: 0 last-prim-ghost ! 2183: 2184: : asmprimname, ( ghost -- : name ) 2185: dup last-prim-ghost ! 2186: >r 2187: here bl word count string, r@ >asm-name ! 2188: aprim-nr @ r> >asm-dummyaddr ! ; 2189: 2190: Defer setup-prim-semantics 2191: 2192: : mapprim ( "forthname" "asmlabel" -- ) 2193: THeader -1 aprim-nr +! aprim-nr @ T A, H 2194: asmprimname, 2195: setup-prim-semantics ; 2196: 2197: : mapprim: ( "forthname" "asmlabel" -- ) 2198: -1 aprim-nr +! aprim-nr @ 2199: Ghost tuck swap resolve <do:> swap tuck >magic ! 2200: asmprimname, ; 2201: 2202: : Doer: ( cfa -- ) \ name 2203: >in @ skip? IF 2drop EXIT THEN >in ! 2204: dup 0< s" prims" T $has? H 0= and 2205: IF 2206: .sourcepos ." needs doer: " >in @ bl word count type >in ! cr 2207: THEN 2208: Ghost 2209: tuck swap resolve <do:> swap >magic ! ; 2210: 2211: Variable prim# 2212: : first-primitive ( n -- ) prim# ! ; 2213: : Primitive ( -- ) \ name 2214: >in @ skip? IF drop EXIT THEN >in ! 2215: s" prims" T $has? H 0= 2216: IF 2217: .sourcepos ." needs prim: " >in @ bl word count type >in ! cr 2218: THEN 2219: prim# @ (THeader ( S xt ghost ) 2220: dup >ghost-flags <primitive> set-flag 2221: over resolve T A, H alias-mask flag! 2222: -1 prim# +! ; 2223: >CROSS 2224: 2225: \ Conditionals and Comments 11may93jaw 2226: 2227: \G saves the existing cond action, this is used for redefining in 2228: \G instant 2229: Variable cond-xt-old 2230: 2231: : cond-target ( -- ) 2232: \G Compiles semantic of redefined cond into new one 2233: cond-xt-old @ compile, ; immediate restrict 2234: 2235: : ;Cond 2236: postpone ; 2237: swap ! ; immediate 2238: 2239: : Cond: ( "name" -- ) 2240: \g defines a conditional or another word that must 2241: \g be executed directly while compiling 2242: \g these words have no interpretative semantics by default 2243: Ghost 2244: >exec-compile 2245: dup @ cond-xt-old ! 2246: :NONAME ; 2247: 2248: 2249: : Comment ( -- ) 2250: >in @ Ghost swap >in ! ' swap 2251: 2dup >exec-compile ! >exec ! ; 2252: 2253: Comment ( Comment \ 2254: 2255: \ compile 10may93jaw 2256: 2257: : compile ( "name" -- ) \ name 2258: findghost 2259: dup >exec-compile @ ?dup 2260: IF nip compile, 2261: ELSE postpone literal postpone gexecute THEN ; immediate restrict 2262: 2263: >TARGET 2264: 2265: : ' ( -- xt ) 2266: \G returns the target-cfa of a ghost 2267: bl word gfind 0= ABORT" CROSS: Ghost don't exists" 2268: g>xt ; 2269: 2270: \ FIXME: this works for the current use cases, but is not 2271: \ in all cases correct ;-) 2272: : comp' X ' 0 ; 2273: 2274: Cond: ['] T ' H alit, ;Cond 2275: 2276: >CROSS 2277: 2278: : [T'] 2279: \ returns the target-cfa of a ghost, or compiles it as literal 2280: postpone [G'] 2281: state @ IF postpone g>xt ELSE g>xt THEN ; immediate 2282: 2283: \ \ threading modell 13dec92py 2284: \ modularized 14jun97jaw 2285: 2286: T 2 cells H Value xt>body 2287: 2288: : (>body) ( cfa -- pfa ) 2289: xt>body + ; ' (>body) plugin-of t>body 2290: 2291: : fillcfa ( usedcells -- ) 2292: T cells H xt>body swap - 2293: assert1( dup 0 >= ) 2294: 0 ?DO 0 X c, tchar +LOOP ; 2295: 2296: : (doer,) ( ghost -- ) 2297: addr, 1 fillcfa ; ' (doer,) plugin-of doer, 2298: 2299: : (docol,) ( -- ) [G'] :docol (doer,) ; ' (docol,) plugin-of docol, 2300: 2301: : (doprim,) ( -- ) 2302: there xt>body + ca>native T a, H 1 fillcfa ; ' (doprim,) plugin-of doprim, 2303: 2304: : (doeshandler,) ( -- ) 2305: T cfalign H [G'] :doesjump addr, T 0 , H ; ' (doeshandler,) plugin-of doeshandler, 2306: 2307: : (dodoes,) ( does-action-ghost -- ) 2308: ]comp [G'] :dodoes addr, comp[ 2309: addr, 2310: \ the relocator in the c engine, does not like the 2311: \ does-address to marked for relocation 2312: [ T e? ec H 0= [IF] ] T here H tcell - reloff [ [THEN] ] 2313: 2 fillcfa ; ' (dodoes,) plugin-of dodoes, 2314: 2315: : (dlit,) ( n -- ) compile lit td, ; ' (dlit,) plugin-of dlit, 2316: 2317: : (lit,) ( n -- ) s>d dlit, ; ' (lit,) plugin-of lit, 2318: 2319: \ if we dont produce relocatable code alit, defaults to lit, jaw 2320: \ this is just for convenience, so we don't have to define alit, 2321: \ seperately for embedded systems.... 2322: T has? relocate H 2323: [IF] 2324: : (alit,) ( n -- ) compile lit T a, H ; ' (alit,) plugin-of alit, 2325: [ELSE] 2326: : (alit,) ( n -- ) lit, ; ' (alit,) plugin-of alit, 2327: [THEN] 2328: 2329: : (fini,) compile ;s ; ' (fini,) plugin-of fini, 2330: 2331: [IFUNDEF] (code) 2332: Defer (code) 2333: Defer (end-code) 2334: [THEN] 2335: 2336: >TARGET 2337: : Code 2338: defempty? 2339: (THeader there resolve 2340: [ T e? prims H 0= [IF] T e? ITC H [ELSE] true [THEN] ] [IF] 2341: doprim, 2342: [THEN] 2343: depth (code) ; 2344: 2345: : Code: 2346: defempty? 2347: Ghost dup there ca>native resolve <do:> swap >magic ! 2348: depth (code) ; 2349: 2350: : end-code 2351: (end-code) 2352: depth ?dup IF 1- <> ABORT" CROSS: Stack changed" 2353: ELSE true ABORT" CROSS: Stack empty" THEN 2354: ; 2355: 2356: >CROSS 2357: 2358: \ tLiteral 12dec92py 2359: 2360: >TARGET 2361: Cond: \G T-\G ;Cond 2362: 2363: Cond: Literal ( n -- ) lit, ;Cond 2364: Cond: ALiteral ( n -- ) alit, ;Cond 2365: 2366: : Char ( "<char>" -- ) bl word char+ c@ ; 2367: Cond: [Char] ( "<char>" -- ) Char lit, ;Cond 2368: 2369: tchar 1 = [IF] 2370: Cond: chars ;Cond 2371: [THEN] 2372: 2373: \ some special literals 27jan97jaw 2374: 2375: \ !! Known Bug: Special Literals and plug-ins work only correct 2376: \ on 16 and 32 Bit Targets and 32 Bit Hosts! 2377: 2378: \ This section could be done with dlit, now. But first I need 2379: \ some test code JAW 2380: 2381: Cond: MAXU 2382: tcell 1 cells u> 2383: IF compile lit tcell 0 ?DO FF T c, H LOOP 2384: ELSE ffffffff lit, THEN 2385: ;Cond 2386: 2387: Cond: MINI 2388: tcell 1 cells u> 2389: IF compile lit bigendian 2390: IF 80 T c, H tcell 1 ?DO 0 T c, H LOOP 2391: ELSE tcell 1 ?DO 0 T c, H LOOP 80 T c, H 2392: THEN 2393: ELSE tcell 2 = IF 8000 ELSE 80000000 THEN lit, THEN 2394: ;Cond 2395: 2396: Cond: MAXI 2397: tcell 1 cells u> 2398: IF compile lit bigendian 2399: IF 7F T c, H tcell 1 ?DO FF T c, H LOOP 2400: ELSE tcell 1 ?DO FF T c, H LOOP 7F T c, H 2401: THEN 2402: ELSE tcell 2 = IF 7fff ELSE 7fffffff THEN lit, THEN 2403: ;Cond 2404: 2405: >CROSS 2406: 2407: \ Target compiling loop 12dec92py 2408: \ ">tib trick thrown out 10may93jaw 2409: \ number? defined at the top 11may93jaw 2410: \ replaced >in by save-input 2411: 2412: : discard 0 ?DO drop LOOP ; 2413: 2414: \ compiled word might leave items on stack! 2415: : tcom ( x1 .. xn n name -- ) 2416: \ dup count type space 2417: gfind 2418: IF >r ( discard saved input state ) discard r> 2419: dup >exec-compile @ ?dup 2420: IF nip execute-exec-compile ELSE gexecute THEN 2421: EXIT 2422: THEN 2423: number? dup 2424: IF 0> IF swap lit, THEN lit, discard 2425: ELSE 2drop restore-input throw Ghost gexecute THEN ; 2426: 2427: \ : ; DOES> 13dec92py 2428: \ ] 9may93py/jaw 2429: 2430: >CROSS 2431: 2432: : compiling-state ( -- ) 2433: \G set states to compililng 2434: Compiling comp-state ! 2435: \ if we have a state in target, change it with the compile state 2436: [G'] state dup undefined? 0= 2437: IF >ghost-xt @ execute X on ELSE drop THEN ; 2438: 2439: : interpreting-state ( -- ) 2440: \G set states to interpreting 2441: \ if target has a state variable, change it according to our state 2442: [G'] state dup undefined? 0= 2443: IF >ghost-xt @ execute X off ELSE drop THEN 2444: Interpreting comp-state ! ; 2445: 2446: >TARGET 2447: 2448: : ] 2449: compiling-state 2450: BEGIN 2451: BEGIN save-input bl word 2452: dup c@ 0= WHILE drop discard refill 0= 2453: ABORT" CROSS: End of file while target compiling" 2454: REPEAT 2455: tcom 2456: compiling? 0= 2457: UNTIL ; 2458: 2459: \ by the way: defining a second interpreter (a compiler-)loop 2460: \ is not allowed if a system should be ans conform 2461: 2462: : (:) ( ghost -- ) 2463: \ common factor of : and :noname. Prepare ;Resolve and start definition 2464: ;Resolve ! there ;Resolve cell+ ! 2465: docol, ]comp colon-start depth T ] H ; 2466: 2467: : : ( -- colon-sys ) \ Name 2468: defempty? 2469: constflag off \ don't let this flag work over colon defs 2470: \ just to go sure nothing unwanted happens 2471: >in @ skip? IF drop skip-defs EXIT THEN >in ! 2472: (THeader (:) ; 2473: 2474: : :noname ( -- colon-sys ) 2475: X cfalign there 2476: \ define a nameless ghost 2477: here ghostheader dup last-header-ghost ! dup to lastghost 2478: (:) ; 2479: 2480: Cond: EXIT ( -- ) compile ;S ;Cond 2481: 2482: Cond: ?EXIT ( -- ) 1 abort" CROSS: using ?exit" ;Cond 2483: 2484: >CROSS 2485: : LastXT ;Resolve @ 0= abort" CROSS: no definition for LastXT" 2486: ;Resolve cell+ @ ; 2487: 2488: >TARGET 2489: 2490: Cond: recurse ( -- ) Last-Header-Ghost @ gexecute ;Cond 2491: 2492: Cond: ; ( -- ) 2493: depth ?dup 2494: IF 1- <> ABORT" CROSS: Stack changed" 2495: ELSE true ABORT" CROSS: Stack empty" 2496: THEN 2497: colon-end 2498: fini, 2499: comp[ 2500: ;Resolve @ 2501: IF ['] colon-resolved ;Resolve @ >comp ! 2502: ;Resolve @ ;Resolve cell+ @ resolve 2503: THEN 2504: interpreting-state 2505: ;Cond 2506: 2507: Cond: [ ( -- ) interpreting-state ;Cond 2508: 2509: >CROSS 2510: 2511: 0 Value created 2512: 2513: : !does ( does-action -- ) 2514: tlastcfa @ [G'] :dovar killref 2515: >space here >r ghostheader space> 2516: r@ created >do:ghost ! r@ swap resolve 2517: r> tlastcfa @ >tempdp dodoes, tempdp> ; 2518: 2519: Defer instant-interpret-does>-hook 2520: 2521: : does-resolved ( ghost -- ) 2522: compile does-exec g>xt T a, H ; 2523: 2524: : resolve-does>-part ( -- ) 2525: \ resolve words made by builders 2526: Last-Header-Ghost @ >do:ghost @ ?dup 2527: IF there resolve THEN ; 2528: 2529: >TARGET 2530: Cond: DOES> 2531: compile (does>) doeshandler, 2532: resolve-does>-part 2533: ;Cond 2534: 2535: : DOES> 2536: ['] does-resolved created >comp ! 2537: switchrom doeshandler, T here H !does 2538: instant-interpret-does>-hook 2539: depth T ] H ; 2540: 2541: >CROSS 2542: \ Creation 01nov92py 2543: 2544: \ Builder 11may93jaw 2545: 2546: 0 Value built 2547: 2548: : Builder ( Create-xt do-ghost "name" -- ) 2549: \ builds up a builder in current vocabulary 2550: \ create-xt is executed when word is interpreted 2551: \ do:-xt is executed when the created word from builder is executed 2552: \ for do:-xt an additional entry after the normal ghost-entrys is used 2553: 2554: ghost to built 2555: built >created @ 0= IF 2556: built >created on 2557: THEN ; 2558: 2559: : gdoes, ( ghost -- ) 2560: \ makes the codefield for a word that is built 2561: >do:ghost @ dup undefined? 0= 2562: IF 2563: dup >magic @ <do:> = 2564: IF doer, 2565: ELSE dodoes, 2566: THEN 2567: EXIT 2568: THEN 2569: \ compile :dodoes gexecute 2570: \ T here H tcell - reloff 2571: 2 refered 2572: 0 fillcfa 2573: ; 2574: 2575: : takeover-x-semantics ( S constructor-ghost new-ghost -- ) 2576: \g stores execution semantic and compilation semantic in the built word 2577: swap >do:ghost @ 2dup swap >do:ghost ! 2578: \ we use the >exec2 field for the semantic of a created word, 2579: \ using exec or exec2 makes no difference for normal cross-compilation 2580: \ but is usefull for instant where the exec field is already 2581: \ defined (e.g. Vocabularies) 2582: 2dup >exec @ swap >exec2 ! 2583: >comp @ swap >comp ! ; 2584: 2585: 0 Value createhere 2586: 2587: : create-resolve ( -- ) 2588: created createhere resolve 0 ;Resolve ! ; 2589: : create-resolve-immediate ( -- ) 2590: create-resolve T immediate H ; 2591: 2592: : TCreate ( <name> -- ) 2593: create-forward-warn 2594: IF ['] reswarn-forward IS resolve-warning THEN 2595: executed-ghost @ (Theader 2596: dup >created on dup to created 2597: 2dup takeover-x-semantics 2598: there to createhere drop gdoes, ; 2599: 2600: : RTCreate ( <name> -- ) 2601: \ creates a new word with code-field in ram 2602: create-forward-warn 2603: IF ['] reswarn-forward IS resolve-warning THEN 2604: \ make Alias 2605: executed-ghost @ (THeader 2606: dup >created on dup to created 2607: 2dup takeover-x-semantics 2608: there 0 T a, H alias-mask flag! 2609: \ store poiter to code-field 2610: switchram T cfalign H 2611: there swap T ! H 2612: there tlastcfa ! 2613: there to createhere drop gdoes, ; 2614: 2615: : Build: ( -- [xt] [colon-sys] ) 2616: :noname postpone TCreate ; 2617: 2618: : BuildSmart: ( -- [xt] [colon-sys] ) 2619: :noname 2620: [ T has? rom H [IF] ] 2621: postpone RTCreate 2622: [ [ELSE] ] 2623: postpone TCreate 2624: [ [THEN] ] ; 2625: 2626: : ;Build 2627: postpone create-resolve postpone ; built >exec ! ; immediate 2628: 2629: : ;Build-immediate 2630: postpone create-resolve-immediate 2631: postpone ; built >exec ! ; immediate 2632: 2633: : gdoes> ( ghost -- addr flag ) 2634: executed-ghost @ g>body ; 2635: 2636: \ DO: ;DO 11may93jaw 2637: 2638: : do:ghost! ( ghost -- ) built >do:ghost ! ; 2639: : doexec! ( xt -- ) built >do:ghost @ >exec ! ; 2640: 2641: : DO: ( -- [xt] [colon-sys] ) 2642: here ghostheader do:ghost! 2643: :noname postpone gdoes> ; 2644: 2645: : by: ( -- [xt] [colon-sys] ) \ name 2646: Ghost do:ghost! 2647: :noname postpone gdoes> ; 2648: 2649: : ;DO ( [xt] [colon-sys] -- ) 2650: postpone ; doexec! ; immediate 2651: 2652: : by ( -- ) \ Name 2653: Ghost >do:ghost @ do:ghost! ; 2654: 2655: : compile: ( --[xt] [colon-sys] ) 2656: \G defines a compile time action for created words 2657: \G by this builder 2658: :noname ; 2659: 2660: : ;compile ( [xt] [colon-sys] -- ) 2661: postpone ; built >do:ghost @ >comp ! ; immediate 2662: 2663: \ Variables and Constants 05dec92py 2664: 2665: Builder (Constant) 2666: Build: ( n -- ) ;Build 2667: by: :docon ( target-body-addr -- n ) T @ H ;DO 2668: 2669: Builder Constant 2670: Build: ( n -- ) T , H ;Build 2671: by (Constant) 2672: 2673: Builder AConstant 2674: Build: ( n -- ) T A, H ;Build 2675: by (Constant) 2676: 2677: Builder 2Constant 2678: Build: ( d -- ) T , , H ;Build 2679: DO: ( ghost -- d ) T dup cell+ @ swap @ H ;DO 2680: 2681: Builder Create 2682: BuildSmart: ;Build 2683: by: :dovar ( target-body-addr -- addr ) ;DO 2684: 2685: Builder Variable 2686: T has? rom H [IF] 2687: Build: ( -- ) T here 0 A, H switchram T align here swap ! 0 , H ( switchrom ) ;Build 2688: by (Constant) 2689: [ELSE] 2690: Build: T 0 , H ;Build 2691: by Create 2692: [THEN] 2693: 2694: Builder 2Variable 2695: T has? rom H [IF] 2696: Build: ( -- ) T here 0 A, H switchram T align here swap ! 0 , 0 , H ( switchrom ) ;Build 2697: by (Constant) 2698: [ELSE] 2699: Build: T 0 , 0 , H ;Build 2700: by Create 2701: [THEN] 2702: 2703: Builder AVariable 2704: T has? rom H [IF] 2705: Build: ( -- ) T here 0 A, H switchram T align here swap ! 0 A, H ( switchrom ) ;Build 2706: by (Constant) 2707: [ELSE] 2708: Build: T 0 A, H ;Build 2709: by Create 2710: [THEN] 2711: 2712: \ User variables 04may94py 2713: 2714: Variable tup 0 tup ! 2715: Variable tudp 0 tudp ! 2716: 2717: : u, ( n -- udp ) 2718: tup @ tudp @ + T ! H 2719: tudp @ dup T cell+ H tudp ! ; 2720: 2721: : au, ( n -- udp ) 2722: tup @ tudp @ + T A! H 2723: tudp @ dup T cell+ H tudp ! ; 2724: 2725: Builder User 2726: Build: 0 u, X , ;Build 2727: by: :douser ( ghost -- up-addr ) X @ tup @ + ;DO 2728: 2729: Builder 2User 2730: Build: 0 u, X , 0 u, drop ;Build 2731: by User 2732: 2733: Builder AUser 2734: Build: 0 au, X , ;Build 2735: by User 2736: 2737: Builder (Value) 2738: Build: ( n -- ) ;Build 2739: by: :docon ( target-body-addr -- n ) T @ H ;DO 2740: 2741: Builder Value 2742: BuildSmart: T , H ;Build 2743: by (Value) 2744: 2745: Builder AValue 2746: BuildSmart: T A, H ;Build 2747: by (Value) 2748: 2749: Defer texecute 2750: 2751: Builder Defer 2752: BuildSmart: ( -- ) [T'] noop T A, H ;Build 2753: by: :dodefer ( ghost -- ) X @ texecute ;DO 2754: 2755: Builder interpret/compile: 2756: Build: ( inter comp -- ) swap T A, A, H ;Build-immediate 2757: DO: ( ghost -- ) ABORT" CROSS: Don't execute" ;DO 2758: 2759: \ Sturctures 23feb95py 2760: 2761: : nalign ( addr1 n -- addr2 ) 2762: \ addr2 is the aligned version of addr1 wrt the alignment size n 2763: 1- tuck + swap invert and ; 2764: 2765: 2766: Builder (Field) 2767: Build: ;Build 2768: by: :dofield T @ H + ;DO 2769: 2770: Builder Field 2771: Build: ( align1 offset1 align size "name" -- align2 offset2 ) 2772: rot dup T , H ( align1 align size offset1 ) 2773: + >r nalign r> ;Build 2774: by (Field) 2775: 2776: >TARGET 2777: : struct T 1 chars 0 H ; 2778: : end-struct T 2Constant H ; 2779: 2780: : cell% ( n -- size align ) 2781: T 1 cells H dup ; 2782: >CROSS 2783: 2784: \ Input-Methods 01py 2785: 2786: Builder input-method 2787: Build: ( m v -- m' v ) dup T , cell+ H ;Build 2788: DO: abort" Not in cross mode" ;DO 2789: 2790: Builder input-var 2791: Build: ( m v size -- m v' ) over T , H + ;Build 2792: DO: abort" Not in cross mode" ;DO 2793: 2794: \ Peephole optimization 05sep01jaw 2795: 2796: \ this section defines different compilation 2797: \ actions for created words 2798: \ this will help the peephole optimizer 2799: \ I (jaw) took this from bernds lates cross-compiler 2800: \ changes but seperated it from the original 2801: \ Builder words. The final plan is to put this 2802: \ into a seperate file, together with the peephole 2803: \ optimizer for cross 2804: 2805: 2806: T has? peephole H [IF] 2807: 2808: >CROSS 2809: 2810: : (callc) compile call T >body a, H ; ' (callc) plugin-of colon, 2811: : (call-res) >tempdp resolved gexecute tempdp> drop ; 2812: ' (call-res) plugin-of colon-resolve 2813: : (prim) dup 0< IF $4000 - ELSE 2814: ." wrong usage of (prim) " 2815: dup gdiscover IF .ghost ELSE . THEN cr -2 throw THEN 2816: T a, H ; ' (prim) plugin-of prim, 2817: 2818: \ if we want this, we have to spilt aconstant 2819: \ and constant!! 2820: \ Builder (Constant) 2821: \ compile: g>body X @ lit, ;compile 2822: 2823: Builder (Constant) 2824: compile: g>body compile lit@ T a, H ;compile 2825: 2826: Builder (Value) 2827: compile: g>body compile lit@ T a, H ;compile 2828: 2829: \ this changes also Variable, AVariable and 2Variable 2830: Builder Create 2831: compile: g>body alit, ;compile 2832: 2833: Builder User 2834: compile: g>body compile useraddr T @ , H ;compile 2835: 2836: Builder Defer 2837: compile: g>body compile lit-perform T A, H ;compile 2838: 2839: Builder (Field) 2840: compile: g>body T @ H compile lit+ T , H ;compile 2841: 2842: Builder interpret/compile: 2843: compile: does-resolved ;compile 2844: 2845: Builder input-method 2846: compile: does-resolved ;compile 2847: 2848: Builder input-var 2849: compile: does-resolved ;compile 2850: 2851: [THEN] 2852: 2853: \ structural conditionals 17dec92py 2854: 2855: >CROSS 2856: : (ncontrols?) ( n -- ) 2857: \g We expect n open control structures 2858: depth over u<= 2859: ABORT" CROSS: unstructured, stack underflow" 2860: 0 ?DO I pick 0= 2861: ABORT" CROSS: unstructured" 2862: LOOP ; ' (ncontrols?) plugin-of ncontrols? 2863: 2864: \ : ?struc ( flag -- ) ABORT" CROSS: unstructured " ; 2865: \ : sys? ( sys -- sys ) dup 0= ?struc ; 2866: 2867: : >mark ( -- sys ) T here ( dup ." M" hex. ) 0 , H ; 2868: 2869: : branchoffset ( src dest -- ) - tchar / ; \ ?? jaw 2870: 2871: : >resolve ( sys -- ) 2872: X here ( dup ." >" hex. ) over branchoffset swap X ! ; 2873: 2874: : <resolve ( sys -- ) 2875: X here ( dup ." <" hex. ) branchoffset X , ; 2876: 2877: :noname compile branch X here branchoffset X , ; 2878: IS branch, ( target-addr -- ) 2879: :noname compile ?branch X here branchoffset X , ; 2880: IS ?branch, ( target-addr -- ) 2881: :noname compile branch T here 0 , H ; 2882: IS branchmark, ( -- branchtoken ) 2883: :noname compile ?branch T here 0 , H ; 2884: IS ?branchmark, ( -- branchtoken ) 2885: :noname T here 0 , H ; 2886: IS ?domark, ( -- branchtoken ) 2887: :noname dup X @ ?struc X here over branchoffset swap X ! ; 2888: IS branchtoresolve, ( branchtoken -- ) 2889: :noname branchto, X here ; 2890: IS branchtomark, ( -- target-addr ) 2891: 2892: >TARGET 2893: 2894: \ Structural Conditionals 12dec92py 2895: 2896: \ CLEANUP Cond: BUT sys? swap ;Cond 2897: \ CLEANUP Cond: YET sys? dup ;Cond 2898: 2899: >CROSS 2900: 2901: Variable tleavings 0 tleavings ! 2902: 2903: : (done) ( addr -- ) 2904: tleavings @ 2905: BEGIN dup 2906: WHILE 2907: >r dup r@ cell+ @ \ address of branch 2908: u> 0= \ lower than DO? 2909: WHILE 2910: r@ 2 cells + @ \ branch token 2911: branchtoresolve, 2912: r@ @ r> free throw 2913: REPEAT r> THEN 2914: tleavings ! drop ; 2915: 2916: >TARGET 2917: 2918: \ What for? ANS? JAW Cond: DONE ( addr -- ) (done) ;Cond 2919: 2920: >CROSS 2921: : (leave) ( branchtoken -- ) 2922: 3 cells allocate throw >r 2923: T here H r@ cell+ ! 2924: r@ 2 cells + ! 2925: tleavings @ r@ ! 2926: r> tleavings ! ; 2927: >TARGET 2928: 2929: : (leave,) ( -- ) 2930: branchmark, (leave) ; ' (leave,) plugin-of leave, 2931: 2932: : (?leave,) ( -- ) 2933: compile 0= ?branchmark, (leave) ; ' (?leave,) plugin-of ?leave, 2934: 2935: Cond: LEAVE leave, ;Cond 2936: Cond: ?LEAVE ?leave, ;Cond 2937: 2938: >CROSS 2939: \ !!JW ToDo : Move to general tools section 2940: 2941: : to1 ( x1 x2 xn n -- addr ) 2942: \G packs n stack elements in am allocated memory region 2943: dup dup 1+ cells allocate throw dup >r swap 1+ 2944: 0 DO tuck ! cell+ LOOP 2945: drop r> ; 2946: 2947: : 1to ( addr -- x1 x2 xn ) 2948: \G unpacks the elements saved by to1 2949: dup @ swap over cells + swap 2950: 0 DO dup @ swap 1 cells - LOOP 2951: free throw ; 2952: 2953: : loop] branchto, dup <resolve tcell - (done) ; 2954: 2955: : skiploop] ?dup IF branchto, branchtoresolve, THEN ; 2956: 2957: >TARGET 2958: 2959: \ Structural Conditionals 12dec92py 2960: 2961: : (cs-swap) ( x1 x2 -- x2 x1 ) 2962: swap ; ' (cs-swap) plugin-of cs-swap 2963: 2964: : (ahead,) branchmark, ; ' (ahead,) plugin-of ahead, 2965: 2966: : (if,) ?branchmark, ; ' (if,) plugin-of if, 2967: 2968: : (then,) branchto, branchtoresolve, ; ' (then,) plugin-of then, 2969: 2970: : (else,) ( ahead ) branchmark, 2971: swap 2972: ( then ) branchto, branchtoresolve, ; ' (else,) plugin-of else, 2973: 2974: : (begin,) branchtomark, ; ' (begin,) plugin-of begin, 2975: 2976: : (while,) ( if ) ?branchmark, 2977: swap ; ' (while,) plugin-of while, 2978: 2979: : (again,) branch, ; ' (again,) plugin-of again, 2980: 2981: : (until,) ?branch, ; ' (until,) plugin-of until, 2982: 2983: : (repeat,) ( again ) branch, 2984: ( then ) branchto, branchtoresolve, ; ' (repeat,) plugin-of repeat, 2985: 2986: : (case,) ( -- n ) 2987: 0 ; ' (case,) plugin-of case, 2988: 2989: : (of,) ( n -- x1 n ) 2990: 1+ >r 2991: compile over compile = 2992: if, compile drop r> ; ' (of,) plugin-of of, 2993: 2994: : (endof,) ( x1 n -- x2 n ) 2995: >r 1 ncontrols? else, r> ; ' (endof,) plugin-of endof, 2996: 2997: : (endcase,) ( x1 .. xn n -- ) 2998: compile drop 0 ?DO 1 ncontrols? then, LOOP ; ' (endcase,) plugin-of endcase, 2999: 3000: >TARGET 3001: Cond: AHEAD ahead, ;Cond 3002: Cond: IF if, ;Cond 3003: Cond: THEN 1 ncontrols? then, ;Cond 3004: Cond: ENDIF 1 ncontrols? then, ;Cond 3005: Cond: ELSE 1 ncontrols? else, ;Cond 3006: 3007: Cond: BEGIN begin, ;Cond 3008: Cond: WHILE 1 ncontrols? while, ;Cond 3009: Cond: AGAIN 1 ncontrols? again, ;Cond 3010: Cond: UNTIL 1 ncontrols? until, ;Cond 3011: Cond: REPEAT 2 ncontrols? repeat, ;Cond 3012: 3013: Cond: CASE case, ;Cond 3014: Cond: OF of, ;Cond 3015: Cond: ENDOF endof, ;Cond 3016: Cond: ENDCASE endcase, ;Cond 3017: 3018: \ Structural Conditionals 12dec92py 3019: 3020: : (do,) ( -- target-addr ) 3021: \ ?? i think 0 is too much! jaw 3022: 0 compile (do) 3023: branchtomark, 2 to1 ; ' (do,) plugin-of do, 3024: 3025: \ alternative for if no ?do 3026: \ : (do,) 3027: \ compile 2dup compile = compile IF 3028: \ compile 2drop compile ELSE 3029: \ compile (do) branchtomark, 2 to1 ; 3030: 3031: : (?do,) ( -- target-addr ) 3032: 0 compile (?do) ?domark, (leave) 3033: branchtomark, 2 to1 ; ' (?do,) plugin-of ?do, 3034: 3035: : (for,) ( -- target-addr ) 3036: compile (for) branchtomark, ; ' (for,) plugin-of for, 3037: 3038: : (loop,) ( target-addr -- ) 3039: 1to compile (loop) loop] 3040: compile unloop skiploop] ; ' (loop,) plugin-of loop, 3041: 3042: : (+loop,) ( target-addr -- ) 3043: 1to compile (+loop) loop] 3044: compile unloop skiploop] ; ' (+loop,) plugin-of +loop, 3045: 3046: : (next,) 3047: compile (next) loop] compile unloop ; ' (next,) plugin-of next, 3048: 3049: Cond: DO do, ;Cond 3050: Cond: ?DO ?do, ;Cond 3051: Cond: FOR for, ;Cond 3052: 3053: Cond: LOOP 1 ncontrols? loop, ;Cond 3054: Cond: +LOOP 1 ncontrols? +loop, ;Cond 3055: Cond: NEXT 1 ncontrols? next, ;Cond 3056: 3057: \ String words 23feb93py 3058: 3059: : ," [char] " parse ht-string, X align ; 3060: 3061: Cond: ." compile (.") T ," H ;Cond 3062: Cond: S" compile (S") T ," H ;Cond 3063: Cond: C" compile (C") T ," H ;Cond 3064: Cond: ABORT" compile (ABORT") T ," H ;Cond 3065: 3066: Cond: IS T ' >body H compile ALiteral compile ! ;Cond 3067: : IS T >address ' >body ! H ; 3068: Cond: TO T ' >body H compile ALiteral compile ! ;Cond 3069: : TO T ' >body ! H ; 3070: 3071: Cond: defers T ' >body @ compile, H ;Cond 3072: 3073: \ LINKED ERR" ENV" 2ENV" 18may93jaw 3074: 3075: \ linked list primitive 3076: : linked X here over X @ X A, swap X ! ; 3077: : chained T linked A, H ; 3078: 3079: : err" s" ErrLink linked" evaluate T , H 3080: [char] " parse ht-string, X align ; 3081: 3082: : env" [char] " parse s" EnvLink linked" evaluate 3083: ht-string, X align X , ; 3084: 3085: : 2env" [char] " parse s" EnvLink linked" evaluate 3086: here >r ht-string, X align X , X , 3087: r> dup T c@ H 80 and swap T c! H ; 3088: 3089: \ compile must be last 22feb93py 3090: 3091: Cond: [compile] ( -- ) \ name 3092: \g For immediate words, works even if forward reference 3093: bl word gfind 0= ABORT" CROSS: Can't compile" 3094: (gexecute) ;Cond 3095: 3096: Cond: postpone ( -- ) \ name 3097: bl word gfind 0= ABORT" CROSS: Can't compile" 3098: dup >magic @ <fwd> = 3099: ABORT" CROSS: Can't postpone on forward declaration" 3100: dup >magic @ <imm> = 3101: IF (gexecute) 3102: ELSE compile (compile) addr, THEN ;Cond 3103: 3104: \ save-cross 17mar93py 3105: 3106: hex 3107: 3108: >CROSS 3109: Create magic s" Gforth2x" here over allot swap move 3110: 3111: bigendian 1+ \ strangely, in magic big=0, little=1 3112: tcell 1 = 0 and or 3113: tcell 2 = 2 and or 3114: tcell 4 = 4 and or 3115: tcell 8 = 6 and or 3116: tchar 1 = 00 and or 3117: tchar 2 = 28 and or 3118: tchar 4 = 50 and or 3119: tchar 8 = 78 and or 3120: magic 7 + c! 3121: 3122: : save-cross ( "image-name" "binary-name" -- ) 3123: bl parse ." Saving to " 2dup type cr 3124: w/o bin create-file throw >r 3125: s" header" X $has? IF 3126: s" #! " r@ write-file throw 3127: bl parse r@ write-file throw 3128: s" --image-file" r@ write-file throw 3129: #lf r@ emit-file throw 3130: r@ dup file-position throw drop 8 mod 8 swap ( file-id limit index ) 3131: ?do 3132: bl over emit-file throw 3133: loop 3134: drop 3135: magic 8 r@ write-file throw \ write magic 3136: ELSE 3137: bl parse 2drop 3138: THEN 3139: image @ there 3140: r@ write-file throw \ write image 3141: s" relocate" X $has? IF 3142: bit$ @ there 1- tcell>bit rshift 1+ 3143: r@ write-file throw \ write tags 3144: THEN 3145: r> close-file throw ; 3146: 3147: : save-region ( addr len -- ) 3148: bl parse w/o bin create-file throw >r 3149: swap >image swap r@ write-file throw 3150: r> close-file throw ; 3151: 3152: \ save-asm-region 29aug01jaw 3153: 3154: Variable name-ptr 3155: Create name-buf 200 chars allot 3156: : init-name-buf name-buf name-ptr ! ; 3157: : nb, name-ptr @ c! 1 chars name-ptr +! ; 3158: : $nb, ( adr len -- ) bounds ?DO I c@ nb, LOOP ; 3159: : @nb name-ptr @ name-buf tuck - ; 3160: 3161: \ stores a usefull string representation of the character 3162: \ in the name buffer 3163: : name-char, ( c -- ) 3164: dup 'a 'z 1+ within IF nb, EXIT THEN 3165: dup 'A 'Z 1+ within IF $20 + nb, EXIT THEN 3166: dup '0 '9 1+ within IF nb, EXIT THEN 3167: CASE '+ OF s" _PLUS" $nb, ENDOF 3168: '- OF s" _MINUS" $nb, ENDOF 3169: '* OF s" _STAR" $nb, ENDOF 3170: '/ OF s" _SLASH" $nb, ENDOF 3171: '' OF s" _TICK" $nb, ENDOF 3172: '( OF s" _OPAREN" $nb, ENDOF 3173: ') OF s" _CPAREN" $nb, ENDOF 3174: '[ OF s" _OBRACKET" $nb, ENDOF 3175: '] OF s" _CBRACKET" $nb, ENDOF 3176: '! OF s" _STORE" $nb, ENDOF 3177: '@ OF s" _FETCH" $nb, ENDOF 3178: '> OF s" _GREATER" $nb, ENDOF 3179: '< OF s" _LESS" $nb, ENDOF 3180: '= OF s" _EQUAL" $nb, ENDOF 3181: '# OF s" _HASH" $nb, ENDOF 3182: '? OF s" _QUEST" $nb, ENDOF 3183: ': OF s" _COL" $nb, ENDOF 3184: '; OF s" _SEMICOL" $nb, ENDOF 3185: ', OF s" _COMMA" $nb, ENDOF 3186: '. OF s" _DOT" $nb, ENDOF 3187: '" OF s" _DQUOT" $nb, ENDOF 3188: dup 3189: base @ >r hex s>d <# #s 'X hold '_ hold #> $nb, r> base ! 3190: ENDCASE ; 3191: 3192: : label-from-ghostname ( ghost -- addr len ) 3193: dup >ghostname init-name-buf 'L nb, bounds 3194: ?DO I c@ name-char, LOOP 3195: \ we add the address to a name to make in unique 3196: \ because one name may appear more then once 3197: \ there are names (e.g. boot) that may be reference from other 3198: \ assembler source files, so we declare them as unique 3199: \ and don't add the address suffix 3200: dup >ghost-flags @ <unique> and 0= 3201: IF s" __" $nb, >link @ base @ >r hex 0 <# #s 'L hold #> r> base ! $nb, 3202: ELSE drop 3203: THEN 3204: @nb ; 3205: 3206: \ FIXME why disabled?! 3207: : label-from-ghostnameXX ( ghost -- addr len ) 3208: \ same as (label-from-ghostname) but caches generated names 3209: dup >asm-name @ ?dup IF nip count EXIT THEN 3210: \ dup >r (label-from-ghostname) 2dup 3211: align here >r string, align 3212: r> r> >asm-name ! ; 3213: 3214: : primghostdiscover ( xt -- ghost true | xt false ) 3215: dup 0= IF false EXIT THEN 3216: >r last-prim-ghost 3217: BEGIN @ dup 3218: WHILE dup >asm-dummyaddr @ r@ = 3219: IF rdrop true EXIT THEN 3220: REPEAT 3221: drop r> false ; 3222: 3223: : gdiscover2 ( xt -- ghost true | xt false ) 3224: dup taddr>region 0= IF false EXIT THEN 3225: dup (>regiontype) @ dup 0= IF drop false EXIT THEN 3226: addr-xt-ghost @ dup 0= IF drop false EXIT THEN 3227: nip true ; 3228: \ dup >ghost-name @ IF nip true ELSE drop false THEN ; 3229: 3230: \ generates a label name for the target address 3231: : generate-label-name ( taddr -- addr len ) 3232: gdiscover2 3233: IF dup >magic @ <do:> = 3234: IF >asm-name @ count EXIT THEN 3235: label-from-ghostname 3236: ELSE 3237: primghostdiscover 3238: IF >asm-name @ count 3239: ELSE base @ >r hex 0 <# #s 'L hold #> r> base ! 3240: THEN 3241: THEN ; 3242: 3243: Variable outfile-fd 3244: 3245: : $out ( adr len -- ) outfile-fd @ write-file throw ; 3246: : nlout newline $out ; 3247: : .ux ( n -- ) 3248: base @ hex swap 0 <# #S #> $out base ! ; 3249: 3250: : save-asm-region-part-aligned ( taddr len -- 'taddr 'len ) 3251: dup cell/ 0 3252: ?DO nlout s" .word " $out over @relbit 3253: IF over X @ generate-label-name $out 3254: ELSE over X @ s" 0x0" $out .ux 3255: THEN 3256: tcell /string 3257: LOOP ; 3258: 3259: : print-bytes ( taddr len n -- taddr' len' ) 3260: over min dup 0> 3261: IF nlout s" .byte " $out 0 3262: ?DO I 0> IF s" , " $out THEN 3263: over X c@ s" 0x0" $out .ux 1 /string 3264: LOOP 3265: THEN ; 3266: 3267: : save-asm-region-part ( addr len -- ) 3268: over dup X aligned swap - ?dup 3269: IF print-bytes THEN 3270: save-asm-region-part-aligned 3271: dup dup X aligned swap - ?dup 3272: IF 2 pick @relbit ABORT" relocated field splitted" 3273: print-bytes 3274: THEN 3275: 2drop ; 3276: 3277: : print-label ( taddr -- ) 3278: nlout generate-label-name $out s" :" $out ; 3279: 3280: : snl-calc ( taddr taddr2 -- ) 3281: tuck over - ; 3282: 3283: : skip-nolables ( taddr -- taddr2 taddr len ) 3284: \G skips memory region where no lables are defined 3285: \G starting from taddr+1 3286: \G Labels will be introduced for each reference mark 3287: \G in addr-refs. 3288: \G This word deals with lables at byte addresses as well. 3289: \G The main idea is to have an intro part which 3290: \G skips until the next cell boundary, the middle part 3291: \G which skips whole cells very efficiently and the third 3292: \G part which skips the bytes to the label in a cell 3293: dup 1+ dup (>regiontype) 3294: ( S taddr taddr-realstart type-addr ) 3295: dup @ dup IF addr-refs @ THEN 3296: swap >r 3297: over align+ tuck tcell swap - rshift swap 0 3298: DO dup 1 and 3299: IF drop rdrop snl-calc UNLOOP EXIT THEN 3300: 2/ swap 1+ swap 3301: LOOP 3302: drop r> cell+ 3303: ( S .. taddr2 type-addr ) dup 3304: BEGIN dup @ dup IF addr-refs @ THEN 0= WHILE cell+ REPEAT 3305: dup >r swap - 1 cells / tcell * + r> 3306: ( S .. taddr2+skiplencells type-addr ) 3307: @ addr-refs @ 1 tcell lshift or 3308: BEGIN dup 1 and 0= WHILE swap 1+ swap 2/ REPEAT drop 3309: ( S .. taddr2+skiplencells+skiplenbytes ) 3310: snl-calc ; 3311: 3312: : insert-label ( taddr -- ) 3313: dup 0= IF drop EXIT THEN 3314: \ ignore everything which points outside our memory regions 3315: \ maybe a primitive pointer or whatever 3316: dup taddr>region 0= IF drop EXIT THEN 3317: dup >r (>regiontype) define-addr-struct addr-refs dup @ 3318: r> tcell 1- and 1 swap lshift or swap ! ; 3319: 3320: \ this generates a sorted list of addresses which must be labels 3321: \ it scans therefore a whole region 3322: : generate-label-list-region ( taddr len -- ) 3323: BEGIN over @relbit IF over X @ insert-label THEN 3324: tcell /string dup 0< 3325: UNTIL 2drop ; 3326: 3327: : generate-label-list ( -- ) 3328: region-link 3329: BEGIN @ dup WHILE 3330: dup 0 >rlink - extent 3331: ?dup IF generate-label-list-region ELSE drop THEN 3332: REPEAT drop ; 3333: 3334: : create-outfile ( addr len -- ) 3335: w/o bin create-file throw outfile-fd ! ; 3336: 3337: : close-outfile ( -- ) 3338: outfile-fd @ close-file throw ; 3339: 3340: : (save-asm-region) ( region -- ) 3341: \ ." label list..." 3342: generate-label-list 3343: \ ." ok!" cr 3344: extent ( S taddr len ) 3345: over insert-label 3346: 2dup + dup insert-label >r ( R end-label ) 3347: ( S taddr len ) drop 3348: BEGIN 3349: dup print-label 3350: dup r@ <> WHILE 3351: skip-nolables save-asm-region-part 3352: REPEAT drop rdrop ; 3353: 3354: : lineout ( addr len -- ) 3355: outfile-fd @ write-line throw ; 3356: 3357: : save-asm-region ( region adr len -- ) 3358: create-outfile (save-asm-region) close-outfile ; 3359: 3360: \ \ minimal definitions 3361: 3362: >MINIMAL also minimal 3363: 3364: \ Usefull words 13feb93py 3365: 3366: : KB 400 * ; 3367: 3368: \ \ [IF] [ELSE] [THEN] ... 14sep97jaw 3369: 3370: \ it is useful to define our own structures and not to rely 3371: \ on the words in the host system 3372: \ The words in the host system might be defined with vocabularies 3373: \ this doesn't work with our self-made compile-loop 3374: 3375: Create parsed 20 chars allot \ store word we parsed 3376: 3377: : upcase 3378: parsed count bounds 3379: ?DO I c@ toupper I c! LOOP ; 3380: 3381: : [ELSE] 3382: 1 BEGIN 3383: BEGIN bl word count dup WHILE 3384: comment? 20 umin parsed place upcase parsed count 3385: 2dup s" [IF]" compare 0= >r 3386: 2dup s" [IFUNDEF]" compare 0= >r 3387: 2dup s" [IFDEF]" compare 0= r> or r> or 3388: IF 2drop 1+ 3389: ELSE 2dup s" [ELSE]" compare 0= 3390: IF 2drop 1- dup 3391: IF 1+ 3392: THEN 3393: ELSE 3394: 2dup s" [ENDIF]" compare 0= >r 3395: s" [THEN]" compare 0= r> or 3396: IF 1- THEN 3397: THEN 3398: THEN 3399: ?dup 0= ?EXIT 3400: REPEAT 3401: 2drop refill 0= 3402: UNTIL drop ; immediate 3403: 3404: : [THEN] ( -- ) ; immediate 3405: 3406: : [ENDIF] ( -- ) ; immediate 3407: 3408: : [IF] ( flag -- ) 3409: 0= IF postpone [ELSE] THEN ; immediate 3410: 3411: Cond: [IF] postpone [IF] ;Cond 3412: Cond: [THEN] postpone [THEN] ;Cond 3413: Cond: [ELSE] postpone [ELSE] ;Cond 3414: 3415: \ define new [IFDEF] and [IFUNDEF] 20may93jaw 3416: 3417: : defined? tdefined? ; 3418: : needed? needed? ; 3419: : doer? doer? ; 3420: 3421: \ we want to use IFDEF on compiler directives (e.g. E?) in the source, too 3422: 3423: : directive? 3424: bl word count [ ' target >wordlist ] literal search-wordlist 3425: dup IF nip THEN ; 3426: 3427: : [IFDEF] >in @ directive? swap >in ! 3428: 0= IF tdefined? ELSE name 2drop true THEN 3429: postpone [IF] ; 3430: 3431: : [IFUNDEF] tdefined? 0= postpone [IF] ; 3432: 3433: Cond: [IFDEF] postpone [IFDEF] ;Cond 3434: 3435: Cond: [IFUNDEF] postpone [IFUNDEF] ;Cond 3436: 3437: \ C: \- \+ Conditional Compiling 09jun93jaw 3438: 3439: : C: >in @ tdefined? 0= 3440: IF >in ! X : 3441: ELSE drop 3442: BEGIN bl word dup c@ 3443: IF count comment? s" ;" compare 0= ?EXIT 3444: ELSE refill 0= ABORT" CROSS: Out of Input while C:" 3445: THEN 3446: AGAIN 3447: THEN ; 3448: 3449: : d? d? ; 3450: 3451: \G doesn't skip line when debug switch is on 3452: : \D D? 0= IF postpone \ THEN ; 3453: 3454: \G interprets the line if word is not defined 3455: : \- tdefined? IF postpone \ THEN ; 3456: 3457: \G interprets the line if word is defined 3458: : \+ tdefined? 0= IF postpone \ THEN ; 3459: 3460: Cond: \- \- ;Cond 3461: Cond: \+ \+ ;Cond 3462: Cond: \D \D ;Cond 3463: 3464: : ?? bl word find IF execute ELSE drop 0 THEN ; 3465: 3466: : needed: 3467: \G defines ghost for words that we want to be compiled 3468: BEGIN >in @ bl word c@ WHILE >in ! Ghost drop REPEAT drop ; 3469: 3470: \ words that should be in minimal 3471: 3472: create s-buffer 50 chars allot 3473: 3474: bigendian Constant bigendian 3475: 3476: : here there ; 3477: : equ constant ; 3478: : mark there constant ; 3479: 3480: \ compiler directives 3481: : >ram >ram ; 3482: : >rom >rom ; 3483: : >auto >auto ; 3484: : >tempdp >tempdp ; 3485: : tempdp> tempdp> ; 3486: : const constflag on ; 3487: 3488: : Redefinitions-start 3489: \G Starts a redefinition section. Warnings are disabled and 3490: \G existing ghosts are reused. This is used in the kernel 3491: \G where ( and \ and the like are redefined 3492: twarnings off warnings off reuse-ghosts on ; 3493: 3494: : Redefinitions-end 3495: \G Ends a redefinition section. Warnings are enabled again. 3496: twarnings on warnings on reuse-ghosts off ; 3497: 3498: : warnings name 3 = 3499: IF twarnings off warnings off ELSE twarnings on warnings on THEN drop ; 3500: 3501: : | ; 3502: \ : | NoHeaderFlag on ; \ This is broken (damages the last word) 3503: 3504: : save-cross save-cross ; 3505: : save-region save-region ; 3506: : tdump swap >image swap dump ; 3507: 3508: also forth 3509: [IFDEF] Label : Label defempty? Label ; [THEN] 3510: [IFDEF] start-macros : start-macros defempty? start-macros ; [THEN] 3511: \ [IFDEF] builttag : builttag builttag ; [THEN] 3512: previous 3513: 3514: : s" [char] " parse s-buffer place s-buffer count ; \ for environment? 3515: : + + ; 3516: : 1+ 1 + ; 3517: : 2+ 2 + ; 3518: : 1- 1- ; 3519: : - - ; 3520: : and and ; 3521: : or or ; 3522: : 2* 2* ; 3523: : * * ; 3524: : / / ; 3525: : dup dup ; 3526: : over over ; 3527: : swap swap ; 3528: : rot rot ; 3529: : drop drop ; 3530: : = = ; 3531: : 0= 0= ; 3532: : lshift lshift ; 3533: : 2/ 2/ ; 3534: \ : . . ; 3535: 3536: : all-words ['] forced? IS skip? ; 3537: : needed-words ['] needed? IS skip? ; 3538: : undef-words ['] defined2? IS skip? ; 3539: : skipdef skipdef ; 3540: 3541: : \ postpone \ ; immediate 3542: : \G T-\G ; immediate 3543: : ( postpone ( ; immediate 3544: : include bl word count included ; 3545: : included swap >image swap included ; 3546: : require require ; 3547: : needs require ; 3548: : .( [char] ) parse type ; 3549: : ." [char] " parse type ; 3550: : cr cr ; 3551: 3552: : times 0 ?DO dup X c, LOOP drop ; \ used for space table creation 3553: 3554: \ only forth also cross also minimal definitions order 3555: 3556: \ cross-compiler words 3557: 3558: : decimal decimal [g'] decimal >exec2 @ ?dup IF EXECUTE THEN ; 3559: : hex hex [g'] hex >exec2 @ ?dup IF EXECUTE THEN ; 3560: 3561: \ : tudp X tudp ; 3562: \ : tup X tup ; 3563: 3564: : doc-off false to-doc ! ; 3565: : doc-on true to-doc ! ; 3566: 3567: : declareunique ( "name" -- ) 3568: \G Sets the unique flag for a ghost. The assembler output 3569: \G generates labels with the ghostname concatenated with the address 3570: \G while cross-compiling. The address is concatenated 3571: \G because we have double occurences of the same name. 3572: \G If we want to reference the labels from the assembler or C 3573: \G code we declare them unique, so the address is skipped. 3574: Ghost >ghost-flags dup @ <unique> or swap ! ; 3575: 3576: \ [IFDEF] dbg : dbg dbg ; [THEN] 3577: 3578: \ for debugging... 3579: \ : dbg dbg ; 3580: : horder order ; 3581: : hwords words ; 3582: \ : words also ghosts 3583: \ words previous ; 3584: : .s .s ; 3585: : bye bye ; 3586: 3587: \ dummy 3588: : group 0 word drop ; 3589: 3590: \ turnkey direction 3591: : H forth ; immediate 3592: : T minimal ; immediate 3593: : G ghosts ; immediate 3594: 3595: 3596: \ these ones are pefered: 3597: 3598: : unlock previous forth also cross ; 3599: 3600: \ also minimal 3601: >cross 3602: 3603: : turnkey 3604: ghosts-wordlist 1 set-order 3605: also target definitions 3606: also Minimal also ; 3607: 3608: >minimal 3609: 3610: : [[+++ 3611: turnkey unlock ; 3612: 3613: unlock definitions also minimal 3614: 3615: : lock turnkey ; 3616: 3617: Defer +++]]-hook 3618: : +++]] +++]]-hook lock ; 3619: 3620: LOCK 3621: \ load cross compiler extension defined in mach file 3622: 3623: UNLOCK >CROSS 3624: 3625: [IFDEF] extend-cross extend-cross [THEN] 3626: 3627: LOCK