gforth/cross.fs - view

File: [gforth] / gforth / cross.fs
Revision 1.121: download - view: text, annotated - select for diffs
Tue Mar 19 18:07:55 2002 UTC (19 years, 8 months ago) by jwilke
Branches: MAIN
CVS tags: HEAD

cleaned up bernds changes.
tried to manage the peephole/call threading stuff with the
existing plugin definitions.

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 prim, ( tcfa -- ) \ compiles primitive invocation 721: Plugin colonmark, ( -- addr ) \ marks a colon call 722: Plugin colon-resolve ( tcfa addr -- ) 723: 724: Plugin addr-resolve ( target-addr addr -- ) 725: Plugin doer-resolve ( ghost res-pnt target-addr addr -- ghost res-pnt ) 726: 727: Plugin ncontrols? ( [ xn ... x1 ] n -- ) \ checks wheter n control structures are open 728: Plugin if, ( -- if-token ) 729: Plugin else, ( if-token -- if-token ) 730: Plugin then, ( if-token -- ) 731: Plugin ahead, 732: Plugin begin, 733: Plugin while, 734: Plugin until, 735: Plugin again, 736: Plugin repeat, 737: Plugin cs-swap ( x1 x2 -- x2 x1 ) 738: 739: Plugin case, ( -- n ) 740: Plugin of, ( n -- x1 n ) 741: Plugin endof, ( x1 n -- x2 n ) 742: Plugin endcase, ( x1 .. xn n -- ) 743: 744: Plugin do, ( -- do-token ) 745: Plugin ?do, ( -- ?do-token ) 746: Plugin for, ( -- for-token ) 747: Plugin loop, ( do-token / ?do-token -- ) 748: Plugin +loop, ( do-token / ?do-token -- ) 749: Plugin next, ( for-token ) 750: Plugin leave, ( -- ) 751: Plugin ?leave, ( -- ) 752: 753: Plugin ca>native \ Convert a code address to the processors 754: \ native address. This is used in doprim, and 755: \ code/code: primitive definitions word to 756: \ convert the addresses. 757: \ The only target where we need this is the misc 758: \ which is a 16 Bit processor with word addresses 759: \ but the forth system we build has a normal byte 760: \ addressed memory model 761: 762: Plugin doprim, \ compiles start of a primitive 763: Plugin docol, \ compiles start of a colon definition 764: Plugin doer, 765: Plugin fini, \ compiles end of definition ;s 766: Plugin doeshandler, 767: Plugin dodoes, 768: 769: Plugin colon-start 770: ' noop plugin-of colon-start 771: Plugin colon-end 772: ' noop plugin-of colon-end 773: 774: Plugin ]comp \ starts compilation 775: ' noop plugin-of ]comp 776: Plugin comp[ \ ends compilation 777: ' noop plugin-of comp[ 778: 779: Plugin t>body \ we need the system >body 780: \ and the target >body 781: 782: >TARGET 783: : >body t>body ; 784: 785: 786: \ Ghost Builder 06oct92py 787: 788: >CROSS 789: hex 790: \ Values for ghost magic 791: 4711 Constant <fwd> 4712 Constant <res> 792: 4713 Constant <imm> 4714 Constant <do:> 793: 4715 Constant <skip> 794: 795: \ Bitmask for ghost flags 796: 1 Constant <unique> 797: 2 Constant <primitive> 798: 799: \ FXIME: move this to general stuff? 800: : set-flag ( addr flag -- ) 801: over @ or swap ! ; 802: 803: : reset-flag ( addr flag -- ) 804: invert over @ and swap ! ; 805: 806: : get-flag ( addr flag -- f ) 807: swap @ and 0<> ; 808: 809: 810: Struct 811: 812: \ link to next ghost (always the first element) 813: cell% field >next-ghost 814: 815: \ type of ghost 816: cell% field >magic 817: 818: \ pointer where ghost is in target, or if unresolved 819: \ points to the where we have to resolve (linked-list) 820: cell% field >link 821: 822: \ execution semantics (while target compiling) of ghost 823: cell% field >exec 824: 825: \ compilation action of this ghost; this is what is 826: \ done to compile a call (or whatever) to this definition. 827: \ E.g. >comp contains the semantic of postpone s" 828: \ whereas >exec-compile contains the semantic of s" 829: cell% field >comp 830: 831: \ Compilation sematics (while parsing) of this ghost. E.g. 832: \ "\" will skip the rest of line. 833: \ These semantics are defined by Cond: and 834: \ if a word is made immediate in instant, then the >exec2 field 835: \ gets copied to here 836: cell% field >exec-compile 837: 838: \ Additional execution semantics of this ghost. This is used 839: \ for code generated by instant and for the doer-xt of created 840: \ words 841: cell% field >exec2 842: 843: cell% field >created 844: 845: \ the xt of the created ghost word itself 846: cell% field >ghost-xt 847: 848: \ pointer to the counted string of the assiciated 849: \ assembler label 850: cell% field >asm-name 851: 852: \ mapped primitives have a special address, so 853: \ we are able to detect them 854: cell% field >asm-dummyaddr 855: 856: \ for builder (create, variable...) words 857: \ the execution symantics of words built are placed here 858: \ this is a doer ghost or a dummy ghost 859: cell% field >do:ghost 860: 861: cell% field >ghost-flags 862: 863: cell% field >ghost-name 864: 865: End-Struct ghost-struct 866: 867: Variable ghost-list 868: 0 ghost-list ! 869: 870: Variable executed-ghost \ last executed ghost, needed in tcreate and gdoes> 871: \ Variable last-ghost \ last ghost that is created 872: Variable last-header-ghost \ last ghost definitions with header 873: 874: \ space for ghosts resolve structure 875: \ we create ghosts in a sepearte space 876: \ and not to the current host dp, because this 877: \ gives trouble with instant while compiling and creating 878: \ a ghost for a forward reference 879: \ BTW: we cannot allocate another memory region 880: \ because allot will check the overflow!! 881: Variable cross-space-dp 882: Create cross-space 250000 allot here 100 allot align 883: Constant cross-space-end 884: cross-space cross-space-dp ! 885: Variable cross-space-dp-orig 886: 887: : cross-space-used cross-space-dp @ cross-space - ; 888: 889: : >space ( -- ) 890: dp @ cross-space-dp-orig ! 891: cross-space-dp @ dp ! ; 892: 893: : space> ( -- ) 894: dp @ dup cross-space-dp ! 895: cross-space-end u> ABORT" CROSS: cross-space overflow" 896: cross-space-dp-orig @ dp ! ; 897: 898: \ this is just for debugging, to see this in the backtrace 899: : execute-exec execute ; 900: : execute-exec2 execute ; 901: : execute-exec-compile execute ; 902: 903: : NoExec 904: executed-ghost @ >exec2 @ 905: ?dup 906: IF execute-exec2 907: ELSE true ABORT" CROSS: Don't execute ghost, or immediate target word" 908: THEN ; 909: 910: Defer is-forward 911: 912: : (ghostheader) ( -- ) 913: ghost-list linked <fwd> , 0 , ['] NoExec , ['] is-forward , 914: 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , ; 915: 916: : ghostheader ( -- ) (ghostheader) 0 , ; 917: 918: ' Ghosts >wordlist Constant ghosts-wordlist 919: 920: \ the current wordlist for ghost definitions in the host 921: ghosts-wordlist Value current-ghosts 922: 923: : Make-Ghost ( "name" -- ghost ) 924: >space 925: \ save current and create in ghost vocabulary 926: get-current >r current-ghosts set-current 927: >in @ Create >in ! 928: \ some forth systems like iForth need the immediate directly 929: \ after the word is created 930: \ restore current 931: r> set-current 932: here (ghostheader) 933: bl word count string, align 934: space> 935: \ set ghost-xt field by doing a search 936: dup >ghost-name count 937: current-ghosts search-wordlist 938: 0= ABORT" CROSS: Just created, must be there!" 939: over >ghost-xt ! 940: DOES> 941: dup executed-ghost ! 942: >exec @ execute-exec ; 943: 944: \ ghost words 14oct92py 945: \ changed: 10may93py/jaw 946: 947: Defer search-ghosts 948: 949: : (search-ghosts) ( adr len -- cfa true | 0 ) 950: current-ghosts search-wordlist ; 951: 952: ' (search-ghosts) IS search-ghosts 953: 954: : gsearch ( addr len -- ghost true | 0 ) 955: search-ghosts 956: dup IF swap >body swap THEN ; 957: 958: : gfind ( string -- ghost true / string false ) 959: \ searches for string in word-list ghosts 960: \ dup count type space 961: dup >r count gsearch 962: dup IF rdrop ELSE r> swap THEN ; 963: 964: : gdiscover ( xt -- ghost true | xt false ) 965: >r ghost-list 966: BEGIN @ dup 967: WHILE dup >magic @ <fwd> <> 968: IF dup >link @ r@ = 969: IF rdrop true EXIT THEN 970: THEN 971: REPEAT 972: drop r> false ; 973: 974: : xt>ghost ( xt -- ghost ) 975: gdiscover 0= ABORT" CROSS: ghost not found for this xt" ; 976: 977: : Ghost ( "name" -- ghost ) 978: >in @ bl word gfind IF nip EXIT THEN 979: drop >in ! Make-Ghost ; 980: 981: : >ghostname ( ghost -- adr len ) 982: >ghost-name count ; 983: 984: : forward? ( ghost -- flag ) 985: >magic @ <fwd> = ; 986: 987: : undefined? ( ghost -- flag ) 988: >magic @ dup <fwd> = swap <skip> = or ; 989: 990: : immediate? ( ghost -- flag ) 991: >magic @ <imm> = ; 992: 993: Variable TWarnings 994: TWarnings on 995: Variable Exists-Warnings 996: Exists-Warnings on 997: 998: : exists-warning ( ghost -- ghost ) 999: TWarnings @ Exists-Warnings @ and 1000: IF dup >ghostname warnhead type ." exists " THEN ; 1001: 1002: \ : HeaderGhost Ghost ; 1003: 1004: Variable reuse-ghosts reuse-ghosts off 1005: 1006: : HeaderGhost ( "name" -- ghost ) 1007: >in @ 1008: bl word count 1009: \ 2dup type space 1010: current-ghosts search-wordlist 1011: IF >body dup undefined? reuse-ghosts @ or 1012: IF nip EXIT 1013: ELSE exists-warning 1014: THEN 1015: drop >in ! 1016: ELSE >in ! 1017: THEN 1018: \ we keep the execution semantics of the prviously 1019: \ defined words, this is a workaround 1020: \ for the redefined \ until vocs work 1021: Make-Ghost ; 1022: 1023: : .ghost ( ghost -- ) >ghostname type ; 1024: 1025: \ ' >ghostname ALIAS @name 1026: 1027: : findghost ( "ghostname" -- ghost ) 1028: bl word gfind 0= ABORT" CROSS: Ghost don't exists" ; 1029: 1030: : [G'] ( -- ghost : name ) 1031: \G ticks a ghost and returns its address 1032: findghost 1033: state @ IF postpone literal THEN ; immediate 1034: 1035: : g>xt ( ghost -- xt ) 1036: \G Returns the xt (cfa) of a ghost. Issues a warning if undefined. 1037: dup undefined? ABORT" CROSS: forward " >link @ ; 1038: 1039: : g>body ( ghost -- body ) 1040: \G Returns the body-address (pfa) of a ghost. 1041: \G Issues a warning if undefined (a forward-reference). 1042: g>xt X >body ; 1043: 1044: 1 Constant <label> 1045: 1046: Struct 1047: \ bitmask of address type (not used for now) 1048: cell% field addr-type 1049: \ if this address is an xt, this field points to the ghost 1050: cell% field addr-xt-ghost 1051: \ a bit mask that tells as what part of the cell 1052: \ is refenced from an address pointer, used for assembler generation 1053: cell% field addr-refs 1054: End-Struct addr-struct 1055: 1056: : %allocerase ( align size -- addr ) 1057: dup >r %alloc dup r> erase ; 1058: 1059: \ returns the addr struct, define it if 0 reference 1060: : define-addr-struct ( addr -- struct-addr ) 1061: dup @ ?dup IF nip EXIT THEN 1062: addr-struct %allocerase tuck swap ! ; 1063: 1064: >cross 1065: 1066: \ Predefined ghosts 12dec92py 1067: 1068: Ghost - drop \ need a ghost otherwise "-" would be treated as a number 1069: 1070: Ghost 0= drop 1071: Ghost branch Ghost ?branch 2drop 1072: Ghost unloop Ghost ;S 2drop 1073: Ghost lit Ghost ! 2drop 1074: Ghost noop drop 1075: Ghost over Ghost = Ghost drop 2drop drop 1076: Ghost 2drop drop 1077: Ghost 2dup drop 1078: Ghost call drop 1079: Ghost @ drop 1080: Ghost useraddr drop 1081: Ghost execute drop 1082: Ghost + drop 1083: Ghost decimal drop 1084: Ghost hex drop 1085: Ghost lit@ drop 1086: Ghost lit-perform drop 1087: Ghost lit+ drop 1088: Ghost does-exec drop 1089: 1090: Ghost :docol Ghost :doesjump Ghost :dodoes 2drop drop 1091: Ghost :dovar drop 1092: 1093: \ \ Parameter for target systems 06oct92py 1094: 1095: 1096: \ we define it ans like... 1097: wordlist Constant target-environment 1098: 1099: \ save information of current dictionary to restore with environ> 1100: Variable env-current 1101: 1102: : >ENVIRON get-current env-current ! target-environment set-current ; 1103: : ENVIRON> env-current @ set-current ; 1104: 1105: >TARGET 1106: 1107: : environment? ( addr len -- [ x ] true | false ) 1108: \G returns the content of environment variable and true or 1109: \G false if not present 1110: target-environment search-wordlist 1111: IF EXECUTE true ELSE false THEN ; 1112: 1113: : $has? ( addr len -- x | false ) 1114: \G returns the content of environment variable 1115: \G or false if not present 1116: T environment? H dup IF drop THEN ; 1117: 1118: : e? ( "name" -- x ) 1119: \G returns the content of environment variable. 1120: \G The variable is expected to exist. If not, issue an error. 1121: bl word count T environment? H 1122: 0= ABORT" environment variable not defined!" ; 1123: 1124: : has? ( "name" --- x | false ) 1125: \G returns the content of environment variable 1126: \G or false if not present 1127: bl word count T $has? H ; 1128: 1129: 1130: >ENVIRON get-order get-current swap 1+ set-order 1131: true SetValue compiler 1132: true SetValue cross 1133: true SetValue standard-threading 1134: >TARGET previous 1135: 1136: 0 1137: [IFDEF] mach-file drop mach-file count 1 [THEN] 1138: [IFDEF] machine-file drop machine-file 1 [THEN] 1139: [IF] included hex 1140: [ELSE] cr ." No machine description!" ABORT 1141: [THEN] 1142: 1143: >ENVIRON 1144: 1145: T has? ec H 1146: [IF] 1147: false DefaultValue relocate 1148: false DefaultValue file 1149: false DefaultValue OS 1150: false DefaultValue prims 1151: false DefaultValue floating 1152: false DefaultValue glocals 1153: false DefaultValue dcomps 1154: false DefaultValue hash 1155: false DefaultValue xconds 1156: false DefaultValue header 1157: false DefaultValue backtrace 1158: false DefaultValue new-input 1159: false DefaultValue peephole 1160: [THEN] 1161: 1162: true DefaultValue interpreter 1163: true DefaultValue ITC 1164: false DefaultValue rom 1165: true DefaultValue standardthreading 1166: 1167: >TARGET 1168: s" relocate" T environment? H 1169: \ JAW why set NIL to this?! 1170: [IF] drop \ SetValue NIL 1171: [ELSE] >ENVIRON X NIL SetValue relocate 1172: [THEN] 1173: >TARGET 1174: 1175: 0 Constant NIL 1176: 1177: >CROSS 1178: 1179: \ \ Create additional parameters 19jan95py 1180: 1181: \ currently cross only works for host machines with address-unit-bits 1182: \ eual to 8 because of s! and sc! 1183: \ but I start to query the environment just to modularize a little bit 1184: 1185: : check-address-unit-bits ( -- ) 1186: \ s" ADDRESS-UNIT-BITS" environment? 1187: \ IF 8 <> ELSE true THEN 1188: \ ABORT" ADDRESS-UNIT-BITS unknown or not equal to 8!" 1189: 1190: \ shit, this doesn't work because environment? is only defined for 1191: \ gforth.fi and not kernl???.fi 1192: ; 1193: 1194: check-address-unit-bits 1195: 8 Constant bits/byte \ we define: byte is address-unit 1196: 1197: 1 bits/byte lshift Constant maxbyte 1198: \ this sets byte size for the target machine, (probably right guess) jaw 1199: 1200: T 1201: NIL Constant TNIL 1202: cell Constant tcell 1203: cell<< Constant tcell<< 1204: cell>bit Constant tcell>bit 1205: bits/char Constant tbits/char 1206: bits/char H bits/byte T / 1207: Constant tchar 1208: float Constant tfloat 1209: 1 bits/char lshift Constant tmaxchar 1210: [IFUNDEF] bits/byte 1211: 8 Constant tbits/byte 1212: [ELSE] 1213: bits/byte Constant tbits/byte 1214: [THEN] 1215: H 1216: tbits/char bits/byte / Constant tbyte 1217: 1218: 1219: \ Variables 06oct92py 1220: 1221: Variable image 1222: Variable tlast TNIL tlast ! \ Last name field 1223: Variable tlastcfa \ Last code field 1224: Variable bit$ 1225: 1226: \ statistics 10jun97jaw 1227: 1228: Variable headers-named 0 headers-named ! 1229: Variable user-vars 0 user-vars ! 1230: 1231: : target>bitmask-size ( u1 -- u2 ) 1232: 1- tcell>bit rshift 1+ ; 1233: 1234: : allocatetarget ( size -- adr ) 1235: dup allocate ABORT" CROSS: No memory for target" 1236: swap over swap erase ; 1237: 1238: \ \ memregion.fs 1239: 1240: 1241: Variable last-defined-region \ pointer to last defined region 1242: Variable region-link \ linked list with all regions 1243: Variable mirrored-link \ linked list for mirrored regions 1244: 0 dup mirrored-link ! region-link ! 1245: 1246: 1247: : >rname 7 cells + ; 1248: : >rbm 4 cells + ; 1249: : >rmem 5 cells + ; 1250: : >rtype 6 cells + ; 1251: : >rlink 3 cells + ; 1252: : >rdp 2 cells + ; 1253: : >rlen cell+ ; 1254: : >rstart ; 1255: 1256: : (region) ( addr len region -- ) 1257: \G change startaddress and length of an existing region 1258: >r r@ last-defined-region ! 1259: r@ >rlen ! dup r@ >rstart ! r> >rdp ! ; 1260: 1261: : region ( addr len -- ) 1262: \G create a new region 1263: \ check whether predefined region exists 1264: save-input bl word find >r >r restore-input throw r> r> 0= 1265: IF \ make region 1266: drop 1267: save-input create restore-input throw 1268: here last-defined-region ! 1269: over ( startaddr ) , ( length ) , ( dp ) , 1270: region-link linked 0 , 0 , 0 , bl word count string, 1271: ELSE \ store new parameters in region 1272: bl word drop 1273: >body (region) 1274: THEN ; 1275: 1276: : borders ( region -- startaddr endaddr ) 1277: \G returns lower and upper region border 1278: dup >rstart @ swap >rlen @ over + ; 1279: 1280: : extent ( region -- startaddr len ) 1281: \G returns the really used area 1282: dup >rstart @ swap >rdp @ over - ; 1283: 1284: : area ( region -- startaddr totallen ) 1285: \G returns the total area 1286: dup >rstart @ swap >rlen @ ; 1287: 1288: : mirrored 1289: \G mark a region as mirrored 1290: mirrored-link 1291: align linked last-defined-region @ , ; 1292: 1293: : .addr ( u -- ) 1294: \G prints a 16 or 32 Bit nice hex value 1295: base @ >r hex 1296: tcell 2 u> 1297: IF s>d <# # # # # [char] . hold # # # # #> type 1298: ELSE s>d <# # # # # # #> type 1299: THEN r> base ! space ; 1300: 1301: : .regions \G display region statistic 1302: 1303: \ we want to list the regions in the right order 1304: \ so first collect all regions on stack 1305: 0 region-link @ 1306: BEGIN dup WHILE dup @ REPEAT drop 1307: BEGIN dup 1308: WHILE cr 1309: 0 >rlink - >r 1310: r@ >rname count tuck type 1311: 12 swap - 0 max spaces space 1312: ." Start: " r@ >rstart @ dup .addr space 1313: ." End: " r@ >rlen @ + .addr space 1314: ." DP: " r> >rdp @ .addr 1315: REPEAT drop 1316: s" rom" T $has? H 0= ?EXIT 1317: cr ." Mirrored:" 1318: mirrored-link @ 1319: BEGIN dup 1320: WHILE space dup cell+ @ >rname count type @ 1321: REPEAT drop cr 1322: ; 1323: 1324: \ -------- predefined regions 1325: 1326: 0 0 region address-space 1327: \ total memory addressed and used by the target system 1328: 1329: 0 0 region dictionary 1330: \ rom area for the compiler 1331: 1332: T has? rom H 1333: [IF] 1334: 0 0 region ram-dictionary mirrored 1335: \ ram area for the compiler 1336: [ELSE] 1337: ' dictionary ALIAS ram-dictionary 1338: [THEN] 1339: 1340: 0 0 region return-stack 1341: 1342: 0 0 region data-stack 1343: 1344: 0 0 region tib-region 1345: 1346: ' dictionary ALIAS rom-dictionary 1347: 1348: 1349: : setup-target ( -- ) \G initialize target's memory space 1350: s" rom" T $has? H 1351: IF \ check for ram and rom... 1352: \ address-space area nip 0<> 1353: ram-dictionary area nip 0<> 1354: rom-dictionary area nip 0<> 1355: and 0= 1356: ABORT" CROSS: define address-space, rom- , ram-dictionary, with rom-support!" 1357: THEN 1358: address-space area nip 1359: IF 1360: address-space area 1361: ELSE 1362: dictionary area 1363: THEN 1364: nip 0= 1365: ABORT" CROSS: define at least address-space or dictionary!!" 1366: 1367: \ allocate target for each region 1368: region-link 1369: BEGIN @ dup 1370: WHILE dup 1371: 0 >rlink - >r 1372: r@ >rlen @ 1373: IF \ allocate mem 1374: r@ >rlen @ allocatetarget dup image ! 1375: r@ >rmem ! 1376: 1377: r@ >rlen @ 1378: target>bitmask-size allocatetarget 1379: dup bit$ ! 1380: r@ >rbm ! 1381: 1382: r@ >rlen @ 1383: tcell / 1+ cells allocatetarget r@ >rtype ! 1384: 1385: rdrop 1386: ELSE r> drop THEN 1387: REPEAT drop ; 1388: 1389: \ MakeKernel 22feb99jaw 1390: 1391: : makekernel ( targetsize -- ) 1392: \G convenience word to setup the memory of the target 1393: \G used by main.fs of the c-engine based systems 1394: 100 swap dictionary (region) 1395: setup-target ; 1396: 1397: >MINIMAL 1398: : makekernel makekernel ; 1399: >CROSS 1400: 1401: \ \ switched tdp for rom support 03jun97jaw 1402: 1403: \ second value is here to store some maximal value for statistics 1404: \ tempdp is also embedded here but has nothing to do with rom support 1405: \ (needs switched dp) 1406: 1407: variable tempdp 0 , \ temporary dp for resolving 1408: variable tempdp-save 1409: 1410: 0 [IF] 1411: variable romdp 0 , \ Dictionary-Pointer for ramarea 1412: variable ramdp 0 , \ Dictionary-Pointer for romarea 1413: 1414: \ 1415: variable sramdp \ start of ram-area for forth 1416: variable sromdp \ start of rom-area for forth 1417: 1418: [THEN] 1419: 1420: 1421: 0 value tdp 1422: variable fixed \ flag: true: no automatic switching 1423: \ false: switching is done automatically 1424: 1425: \ Switch-Policy: 1426: \ 1427: \ a header is always compiled into rom 1428: \ after a created word (create and variable) compilation goes to ram 1429: \ 1430: \ Be careful: If you want to make the data behind create into rom 1431: \ you have to put >rom before create! 1432: 1433: variable constflag constflag off 1434: 1435: : activate ( region -- ) 1436: \G next code goes to this region 1437: >rdp to tdp ; 1438: 1439: : (switchram) 1440: fixed @ ?EXIT s" rom" T $has? H 0= ?EXIT 1441: ram-dictionary activate ; 1442: 1443: : switchram 1444: constflag @ 1445: IF constflag off ELSE (switchram) THEN ; 1446: 1447: : switchrom 1448: fixed @ ?EXIT rom-dictionary activate ; 1449: 1450: : >tempdp ( addr -- ) 1451: tdp tempdp-save ! tempdp to tdp tdp ! ; 1452: : tempdp> ( -- ) 1453: tempdp-save @ to tdp ; 1454: 1455: : >ram fixed off (switchram) fixed on ; 1456: : >rom fixed off switchrom fixed on ; 1457: : >auto fixed off switchrom ; 1458: 1459: 1460: 1461: \ : romstart dup sromdp ! romdp ! ; 1462: \ : ramstart dup sramdp ! ramdp ! ; 1463: 1464: \ default compilation goes to rom 1465: \ when romable support is off, only the rom switch is used (!!) 1466: >auto 1467: 1468: : there tdp @ ; 1469: 1470: >TARGET 1471: 1472: \ \ Target Memory Handling 1473: 1474: \ Byte ordering and cell size 06oct92py 1475: 1476: : cell+ tcell + ; 1477: : cells tcell<< lshift ; 1478: : chars tchar * ; 1479: : char+ tchar + ; 1480: : floats tfloat * ; 1481: 1482: >CROSS 1483: : cell/ tcell<< rshift ; 1484: >TARGET 1485: 20 CONSTANT bl 1486: \ TNIL Constant NIL 1487: 1488: >CROSS 1489: 1490: bigendian 1491: [IF] 1492: : DS! ( d addr -- ) tcell bounds swap 1- 1493: DO maxbyte ud/mod rot I c! -1 +LOOP 2drop ; 1494: : DS@ ( addr -- d ) >r 0 0 r> tcell bounds 1495: DO maxbyte * swap maxbyte um* rot + swap I c@ + swap LOOP ; 1496: : Sc! ( n addr -- ) >r s>d r> tchar bounds swap 1- 1497: DO maxbyte ud/mod rot I c! -1 +LOOP 2drop ; 1498: : Sc@ ( addr -- n ) >r 0 0 r> tchar bounds 1499: DO maxbyte * swap maxbyte um* rot + swap I c@ + swap LOOP d>s ; 1500: [ELSE] 1501: : DS! ( d addr -- ) tcell bounds 1502: DO maxbyte ud/mod rot I c! LOOP 2drop ; 1503: : DS@ ( addr -- n ) >r 0 0 r> tcell bounds swap 1- 1504: DO maxbyte * swap maxbyte um* rot + swap I c@ + swap -1 +LOOP ; 1505: : Sc! ( n addr -- ) >r s>d r> tchar bounds 1506: DO maxbyte ud/mod rot I c! LOOP 2drop ; 1507: : Sc@ ( addr -- n ) >r 0 0 r> tchar bounds swap 1- 1508: DO maxbyte * swap maxbyte um* rot + swap I c@ + swap -1 +LOOP d>s ; 1509: [THEN] 1510: 1511: : S! ( n addr -- ) >r s>d r> DS! ; 1512: : S@ ( addr -- n ) DS@ d>s ; 1513: 1514: : taddr>region ( taddr -- region | 0 ) 1515: \G finds for a target-address the correct region 1516: \G returns 0 if taddr is not in range of a target memory region 1517: region-link 1518: BEGIN @ dup 1519: WHILE dup >r 1520: 0 >rlink - >r 1521: r@ >rlen @ 1522: IF dup r@ borders within 1523: IF r> r> drop nip EXIT THEN 1524: THEN 1525: r> drop 1526: r> 1527: REPEAT 1528: 2drop 0 ; 1529: 1530: : taddr>region-abort ( taddr -- region | 0 ) 1531: dup taddr>region dup 0= 1532: IF drop cr ." Wrong address: " .addr 1533: -1 ABORT" Address out of range!" 1534: THEN nip ; 1535: 1536: : (>regionimage) ( taddr -- 'taddr ) 1537: dup 1538: \ find region we want to address 1539: taddr>region-abort 1540: >r 1541: \ calculate offset in region 1542: r@ >rstart @ - 1543: \ add regions real address in our memory 1544: r> >rmem @ + ; 1545: 1546: : (>regionbm) ( taddr -- 'taddr bitmaskbaseaddr ) 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> >rbm @ ; 1555: 1556: : (>regiontype) ( taddr -- 'taddr ) 1557: dup 1558: \ find region we want to address 1559: taddr>region-abort 1560: >r 1561: \ calculate offset in region 1562: r@ >rstart @ - tcell / cells 1563: \ add regions real address in our memory 1564: r> >rtype @ + ; 1565: 1566: \ Bit string manipulation 06oct92py 1567: \ 9may93jaw 1568: CREATE Bittable 80 c, 40 c, 20 c, 10 c, 8 c, 4 c, 2 c, 1 c, 1569: : bits ( n -- n ) chars Bittable + c@ ; 1570: 1571: : >bit ( addr n -- c-addr mask ) 8 /mod rot + swap bits ; 1572: : +bit ( addr n -- ) >bit over c@ or swap c! ; 1573: : -bit ( addr n -- ) >bit invert over c@ and swap c! ; 1574: 1575: : @relbit ( taddr -- f ) (>regionbm) swap cell/ >bit swap c@ and ; 1576: 1577: : (relon) ( taddr -- ) 1578: [ [IFDEF] fd-relocation-table ] 1579: s" +" fd-relocation-table write-file throw 1580: dup s>d <# #s #> fd-relocation-table write-line throw 1581: [ [THEN] ] 1582: (>regionbm) swap cell/ +bit ; 1583: 1584: : (reloff) ( taddr -- ) 1585: [ [IFDEF] fd-relocation-table ] 1586: s" -" fd-relocation-table write-file throw 1587: dup s>d <# #s #> fd-relocation-table write-line throw 1588: [ [THEN] ] 1589: (>regionbm) swap cell/ -bit ; 1590: 1591: : (>image) ( taddr -- absaddr ) image @ + ; 1592: 1593: DEFER >image 1594: DEFER relon 1595: DEFER reloff 1596: DEFER correcter 1597: 1598: T has? relocate H 1599: [IF] 1600: ' (relon) IS relon 1601: ' (reloff) IS reloff 1602: ' (>regionimage) IS >image 1603: [ELSE] 1604: ' drop IS relon 1605: ' drop IS reloff 1606: ' (>regionimage) IS >image 1607: [THEN] 1608: 1609: \ Target memory access 06oct92py 1610: 1611: : align+ ( taddr -- rest ) 1612: tcell tuck 1- and - [ tcell 1- ] Literal and ; 1613: : cfalign+ ( taddr -- rest ) 1614: \ see kernel.fs:cfaligned 1615: /maxalign tuck 1- and - [ /maxalign 1- ] Literal and ; 1616: 1617: >TARGET 1618: : aligned ( taddr -- ta-addr ) dup align+ + ; 1619: \ assumes cell alignment granularity (as GNU C) 1620: 1621: : cfaligned ( taddr1 -- taddr2 ) 1622: \ see kernel.fs 1623: dup cfalign+ + ; 1624: 1625: : @ ( taddr -- w ) >image S@ ; 1626: : ! ( w taddr -- ) >image S! ; 1627: : c@ ( taddr -- char ) >image Sc@ ; 1628: : c! ( char taddr -- ) >image Sc! ; 1629: : 2@ ( taddr -- x1 x2 ) T dup cell+ @ swap @ H ; 1630: : 2! ( x1 x2 taddr -- ) T tuck ! cell+ ! H ; 1631: 1632: \ Target compilation primitives 06oct92py 1633: \ included A! 16may93jaw 1634: 1635: : here ( -- there ) there ; 1636: : allot ( n -- ) tdp +! ; 1637: : , ( w -- ) T here H tcell T allot ! H ; 1638: : c, ( char -- ) T here H tchar T allot c! H ; 1639: : align ( -- ) T here H align+ 0 ?DO bl T c, H tchar +LOOP ; 1640: : cfalign ( -- ) 1641: T here H cfalign+ 0 ?DO bl T c, H tchar +LOOP ; 1642: 1643: : >address dup 0>= IF tbyte / THEN ; \ ?? jaw 1644: : A! swap >address swap dup relon T ! H ; 1645: : A, ( w -- ) >address T here H relon T , H ; 1646: 1647: \ high-level ghosts 1648: 1649: >CROSS 1650: 1651: Ghost (do) Ghost (?do) 2drop 1652: Ghost (for) drop 1653: Ghost (loop) Ghost (+loop) 2drop 1654: Ghost (next) drop 1655: Ghost (does>) Ghost (compile) 2drop 1656: Ghost (.") Ghost (S") Ghost (ABORT") 2drop drop 1657: Ghost (C") drop 1658: Ghost ' drop 1659: 1660: \ user ghosts 1661: 1662: Ghost state drop 1663: 1664: \ \ -------------------- Host/Target copy etc. 29aug01jaw 1665: 1666: 1667: >CROSS 1668: 1669: : TD! >image DS! ; 1670: : TD@ >image DS@ ; 1671: 1672: : th-count ( taddr -- host-addr len ) 1673: \G returns host address of target string 1674: assert1( tbyte 1 = ) 1675: dup X c@ swap X char+ >image swap ; 1676: 1677: : ht-move ( haddr taddr len -- ) 1678: \G moves data from host-addr to destination in target-addr 1679: \G character by character 1680: swap -rot bounds ?DO I c@ over X c! X char+ LOOP drop ; 1681: 1682: 2Variable last-string 1683: 1684: : ht-string, ( addr count -- ) 1685: dup there swap last-string 2! 1686: dup T c, H bounds ?DO I c@ T c, H LOOP ; 1687: 1688: >TARGET 1689: 1690: : count dup X c@ swap X char+ swap ; 1691: 1692: : on -1 -1 rot TD! ; 1693: : off T 0 swap ! H ; 1694: 1695: : tcmove ( source dest len -- ) 1696: \G cmove in target memory 1697: tchar * bounds 1698: ?DO dup T c@ H I T c! H 1+ 1699: tchar +LOOP drop ; 1700: 1701: : td, ( d -- ) 1702: \G Store a host value as one cell into the target 1703: there tcell X allot TD! ; 1704: 1705: \ \ Load Assembler 1706: 1707: >TARGET 1708: H also Forth definitions 1709: 1710: \ FIXME: should we include the assembler really in the forth 1711: \ dictionary?!?!?!? This conflicts with the existing assembler 1712: \ of the host forth system!! 1713: [IFDEF] asm-include asm-include [THEN] hex 1714: 1715: previous 1716: 1717: 1718: >CROSS 1719: 1720: : (cc) T a, H ; ' (cc) plugin-of colon, 1721: : (prim) T a, H ; ' (prim) plugin-of prim, 1722: 1723: : (cr) >tempdp colon, tempdp> ; ' (cr) plugin-of colon-resolve 1724: : (ar) T ! H ; ' (ar) plugin-of addr-resolve 1725: : (dr) ( ghost res-pnt target-addr addr ) 1726: >tempdp drop over 1727: dup >magic @ <do:> = 1728: IF doer, 1729: ELSE dodoes, 1730: THEN 1731: tempdp> ; ' (dr) plugin-of doer-resolve 1732: 1733: : (cm) ( -- addr ) 1734: there -1 colon, ; ' (cm) plugin-of colonmark, 1735: 1736: >TARGET 1737: : compile, ( xt -- ) 1738: dup xt>ghost >comp @ EXECUTE ; 1739: >CROSS 1740: 1741: \ resolve structure 1742: 1743: : >next ; \ link to next field 1744: : >tag cell+ ; \ indecates type of reference: 0: call, 1: address, 2: doer 1745: : >taddr cell+ cell+ ; 1746: : >ghost 3 cells + ; 1747: : >file 4 cells + ; 1748: : >line 5 cells + ; 1749: 1750: : (refered) ( ghost addr tag -- ) 1751: \G creates a reference to ghost at address taddr 1752: >space 1753: rot >link linked 1754: ( taddr tag ) , 1755: ( taddr ) , 1756: last-header-ghost @ , 1757: loadfile , 1758: sourceline# , 1759: space> 1760: ; 1761: 1762: : refered ( ghost tag -- ) 1763: \G creates a resolve structure 1764: T here aligned H swap (refered) 1765: ; 1766: 1767: : killref ( addr ghost -- ) 1768: \G kills a forward reference to ghost at position addr 1769: \G this is used to eleminate a :dovar refence after making a DOES> 1770: dup >magic @ <fwd> <> IF 2drop EXIT THEN 1771: swap >r >link 1772: BEGIN dup @ dup ( addr last this ) 1773: WHILE dup >taddr @ r@ = 1774: IF @ over ! 1775: ELSE nip THEN 1776: REPEAT rdrop 2drop 1777: ; 1778: 1779: Defer resolve-warning 1780: 1781: : reswarn-test ( ghost res-struct -- ghost res-struct ) 1782: over cr ." Resolving " .ghost dup ." in " >ghost @ .ghost ; 1783: 1784: : reswarn-forward ( ghost res-struct -- ghost res-struct ) 1785: over warnhead .ghost dup ." is referenced in " 1786: >ghost @ .ghost ; 1787: 1788: \ ' reswarn-test IS resolve-warning 1789: 1790: \ resolve 14oct92py 1791: 1792: : resolve-loop ( ghost resolve-list tcfa -- ) 1793: >r 1794: BEGIN dup WHILE 1795: \ dup >tag @ 2 = IF reswarn-forward THEN 1796: resolve-warning 1797: r@ over >taddr @ 1798: 2 pick >tag @ 1799: CASE 0 OF colon-resolve ENDOF 1800: 1 OF addr-resolve ENDOF 1801: 2 OF doer-resolve ENDOF 1802: ENDCASE 1803: @ \ next list element 1804: REPEAT 2drop rdrop 1805: ; 1806: 1807: \ : resolve-loop ( ghost tcfa -- ghost tcfa ) 1808: \ >r dup >link @ 1809: \ BEGIN dup WHILE dup T @ H r@ rot T ! H REPEAT drop r> ; 1810: 1811: \ exists 9may93jaw 1812: 1813: : exists ( ghost tcfa -- ) 1814: \G print warning and set new target link in ghost 1815: swap exists-warning 1816: >link ! ; 1817: 1818: : colon-resolved ( ghost -- ) 1819: \ compiles a call to a colon definition, 1820: \ compile action for >comp field 1821: >link @ colon, ; 1822: 1823: : prim-resolved ( ghost -- ) 1824: \ compiles a call to a primitive 1825: >link @ prim, ; 1826: 1827: : (is-forward) ( ghost -- ) 1828: colonmark, 0 (refered) ; \ compile space for call 1829: ' (is-forward) IS is-forward 1830: 1831: 0 Value resolved 1832: 1833: : resolve ( ghost tcfa -- ) 1834: \G resolve referencies to ghost with tcfa 1835: dup taddr>region 0<> IF 1836: 2dup (>regiontype) define-addr-struct addr-xt-ghost 1837: 1838: \ we define new address only if empty 1839: \ this is for not to take over the alias ghost 1840: \ (different ghost, but identical xt) 1841: \ but the very first that really defines it 1842: dup @ 0= IF ! ELSE 2drop THEN 1843: THEN 1844: 1845: \ is ghost resolved?, second resolve means another 1846: \ definition with the same name 1847: over undefined? 0= IF exists EXIT THEN 1848: \ get linked-list 1849: swap >r r@ >link @ swap \ ( list tcfa R: ghost ) 1850: \ mark ghost as resolved 1851: dup r@ >link ! <res> r@ >magic ! 1852: r@ to resolved 1853: 1854: \ r@ >comp @ ['] is-forward = 1855: \ ABORT" >comp action not set on a resolved ghost" 1856: 1857: \ copmile action defaults to colon-resolved 1858: \ if this is not right something must be set before 1859: \ calling resolve 1860: r@ >comp @ ['] is-forward = IF 1861: ['] colon-resolved r@ >comp ! 1862: THEN 1863: \ loop through forward referencies 1864: r> -rot 1865: comp-state @ >r Resolving comp-state ! 1866: resolve-loop 1867: r> comp-state ! 1868: 1869: ['] noop IS resolve-warning 1870: ; 1871: 1872: \ gexecute ghost, 01nov92py 1873: 1874: : (gexecute) ( ghost -- ) 1875: dup >comp @ EXECUTE ; 1876: 1877: : gexecute ( ghost -- ) 1878: dup >magic @ <imm> = ABORT" CROSS: gexecute on immediate word" 1879: (gexecute) ; 1880: 1881: : addr, ( ghost -- ) 1882: dup forward? IF 1 refered 0 T a, H ELSE >link @ T a, H THEN ; 1883: 1884: \ .unresolved 11may93jaw 1885: 1886: variable ResolveFlag 1887: 1888: \ ?touched 11may93jaw 1889: 1890: : ?touched ( ghost -- flag ) dup forward? swap >link @ 1891: 0 <> and ; 1892: 1893: : .forwarddefs ( ghost -- ) 1894: ." appeared in:" 1895: >link 1896: BEGIN @ dup 1897: WHILE cr 5 spaces 1898: dup >ghost @ .ghost 1899: ." file " dup >file @ ?dup IF count type ELSE ." CON" THEN 1900: ." line " dup >line @ .dec 1901: REPEAT 1902: drop ; 1903: 1904: : ?resolved ( ghost -- ) 1905: dup ?touched 1906: IF ResolveFlag on 1907: dup cr .ghost .forwarddefs 1908: ELSE drop 1909: THEN ; 1910: 1911: : .unresolved ( -- ) 1912: ResolveFlag off cr ." Unresolved: " 1913: ghost-list 1914: BEGIN @ dup 1915: WHILE dup ?resolved 1916: REPEAT drop ResolveFlag @ 1917: IF 1918: -1 abort" Unresolved words!" 1919: ELSE 1920: ." Nothing!" 1921: THEN 1922: cr ; 1923: 1924: : .stats 1925: base @ >r decimal 1926: cr ." named Headers: " headers-named @ . 1927: r> base ! ; 1928: 1929: >MINIMAL 1930: 1931: : .unresolved .unresolved ; 1932: 1933: >CROSS 1934: \ Header states 12dec92py 1935: 1936: \ : flag! ( 8b -- ) tlast @ dup >r T c@ xor r> c! H ; 1937: bigendian [IF] 0 [ELSE] tcell 1- [THEN] Constant flag+ 1938: : flag! ( w -- ) tlast @ flag+ + dup >r T c@ xor r> c! H ; 1939: 1940: VARIABLE ^imm 1941: 1942: \ !! should be target wordsize specific 1943: $80 constant alias-mask 1944: $40 constant immediate-mask 1945: $20 constant restrict-mask 1946: 1947: >TARGET 1948: : immediate immediate-mask flag! 1949: ^imm @ @ dup <imm> = IF drop EXIT THEN 1950: <res> <> ABORT" CROSS: Cannot immediate a unresolved word" 1951: <imm> ^imm @ ! ; 1952: : restrict restrict-mask flag! ; 1953: 1954: : isdoer 1955: \G define a forth word as doer, this makes obviously only sence on 1956: \G forth processors such as the PSC1000 1957: <do:> last-header-ghost @ >magic ! ; 1958: >CROSS 1959: 1960: \ Target Header Creation 01nov92py 1961: 1962: : ht-lstring, ( addr count -- ) 1963: dup T , H bounds ?DO I c@ T c, H LOOP ; 1964: 1965: >TARGET 1966: : name, ( "name" -- ) bl word count ht-lstring, X cfalign ; 1967: : view, ( -- ) ( dummy ) ; 1968: >CROSS 1969: 1970: \ Target Document Creation (goes to crossdoc.fd) 05jul95py 1971: 1972: s" ./doc/crossdoc.fd" r/w create-file throw value doc-file-id 1973: \ contains the file-id of the documentation file 1974: 1975: : T-\G ( -- ) 1976: source >in @ /string doc-file-id write-line throw 1977: postpone \ ; 1978: 1979: Variable to-doc to-doc on 1980: 1981: : cross-doc-entry ( -- ) 1982: to-doc @ tlast @ 0<> and \ not an anonymous (i.e. noname) header 1983: IF 1984: s" " doc-file-id write-line throw 1985: s" make-doc " doc-file-id write-file throw 1986: 1987: Last-Header-Ghost @ >ghostname doc-file-id write-file throw 1988: >in @ 1989: [char] ( parse 2drop 1990: [char] ) parse doc-file-id write-file throw 1991: s" )" doc-file-id write-file throw 1992: [char] \ parse 2drop 1993: T-\G 1994: >in ! 1995: THEN ; 1996: 1997: \ Target TAGS creation 1998: 1999: s" kernel.TAGS" r/w create-file throw value tag-file-id 2000: s" kernel.tags" r/w create-file throw value vi-tag-file-id 2001: \ contains the file-id of the tags file 2002: 2003: Create tag-beg 2 c, 7F c, bl c, 2004: Create tag-end 2 c, bl c, 01 c, 2005: Create tag-bof 1 c, 0C c, 2006: Create tag-tab 1 c, 09 c, 2007: 2008: 2variable last-loadfilename 0 0 last-loadfilename 2! 2009: 2010: : put-load-file-name ( -- ) 2011: sourcefilename last-loadfilename 2@ d<> 2012: IF 2013: tag-bof count tag-file-id write-line throw 2014: sourcefilename 2dup 2015: tag-file-id write-file throw 2016: last-loadfilename 2! 2017: s" ,0" tag-file-id write-line throw 2018: THEN ; 2019: 2020: : cross-gnu-tag-entry ( -- ) 2021: tlast @ 0<> \ not an anonymous (i.e. noname) header 2022: IF 2023: put-load-file-name 2024: source >in @ min tag-file-id write-file throw 2025: tag-beg count tag-file-id write-file throw 2026: Last-Header-Ghost @ >ghostname tag-file-id write-file throw 2027: tag-end count tag-file-id write-file throw 2028: base @ decimal sourceline# 0 <# #s #> tag-file-id write-file throw 2029: \ >in @ 0 <# #s [char] , hold #> tag-file-id write-line throw 2030: s" ,0" tag-file-id write-line throw 2031: base ! 2032: THEN ; 2033: 2034: : cross-vi-tag-entry ( -- ) 2035: tlast @ 0<> \ not an anonymous (i.e. noname) header 2036: IF 2037: sourcefilename vi-tag-file-id write-file throw 2038: tag-tab count vi-tag-file-id write-file throw 2039: Last-Header-Ghost @ >ghostname vi-tag-file-id write-file throw 2040: tag-tab count vi-tag-file-id write-file throw 2041: s" /^" vi-tag-file-id write-file throw 2042: source vi-tag-file-id write-file throw 2043: s" $/" vi-tag-file-id write-line throw 2044: THEN ; 2045: 2046: : cross-tag-entry ( -- ) 2047: cross-gnu-tag-entry 2048: cross-vi-tag-entry ; 2049: 2050: \ Check for words 2051: 2052: Defer skip? ' false IS skip? 2053: 2054: : skipdef ( "name" -- ) 2055: \G skip definition of an undefined word in undef-words and 2056: \G all-words mode 2057: Ghost dup forward? 2058: IF >magic <skip> swap ! 2059: ELSE drop THEN ; 2060: 2061: : tdefined? ( "name" -- flag ) 2062: Ghost undefined? 0= ; 2063: 2064: : defined2? ( "name" -- flag ) 2065: \G return true for anything else than forward, even for <skip> 2066: \G that's what we want 2067: Ghost forward? 0= ; 2068: 2069: : forced? ( "name" -- flag ) 2070: \G return ture if it is a foreced skip with defskip 2071: Ghost >magic @ <skip> = ; 2072: 2073: : needed? ( -- flag ) \ name 2074: \G returns a false flag when 2075: \G a word is not defined 2076: \G a forward reference exists 2077: \G so the definition is not skipped! 2078: bl word gfind 2079: IF dup undefined? 2080: nip 2081: 0= 2082: ELSE drop true THEN ; 2083: 2084: : doer? ( -- flag ) \ name 2085: Ghost >magic @ <do:> = ; 2086: 2087: : skip-defs ( -- ) 2088: BEGIN refill WHILE source -trailing nip 0= UNTIL THEN ; 2089: 2090: \ Target header creation 2091: 2092: Variable NoHeaderFlag 2093: NoHeaderFlag off 2094: 2095: : 0.r ( n1 n2 -- ) 2096: base @ >r hex 2097: 0 swap <# 0 ?DO # LOOP #> type 2098: r> base ! ; 2099: 2100: : .sym ( adr len -- ) 2101: \G escapes / and \ to produce sed output 2102: bounds 2103: DO I c@ dup 2104: CASE [char] / OF drop ." \/" ENDOF 2105: [char] \ OF drop ." \\" ENDOF 2106: dup OF emit ENDOF 2107: ENDCASE 2108: LOOP ; 2109: 2110: Defer setup-execution-semantics 2111: 0 Value lastghost 2112: 2113: : (THeader ( "name" -- ghost ) 2114: \ >in @ bl word count type 2 spaces >in ! 2115: \ wordheaders will always be compiled to rom 2116: switchrom 2117: \ build header in target 2118: NoHeaderFlag @ 2119: IF NoHeaderFlag off 2120: ELSE 2121: T align H view, 2122: tlast @ dup 0> IF tcell - THEN T A, H there tlast ! 2123: 1 headers-named +! \ Statistic 2124: >in @ T name, H >in ! 2125: THEN 2126: T cfalign here H tlastcfa ! 2127: \ Old Symbol table sed-script 2128: \ >in @ cr ." sym:s/CFA=" there 4 0.r ." /" bl word count .sym ." /g" cr >in ! 2129: HeaderGhost 2130: \ output symbol table to extra file 2131: [ [IFDEF] fd-symbol-table ] 2132: base @ hex there s>d <# 8 0 DO # LOOP #> fd-symbol-table write-file throw base ! 2133: s" :" fd-symbol-table write-file throw 2134: dup >ghostname fd-symbol-table write-line throw 2135: [ [THEN] ] 2136: dup Last-Header-Ghost ! dup to lastghost 2137: dup >magic ^imm ! \ a pointer for immediate 2138: alias-mask flag! 2139: cross-doc-entry cross-tag-entry 2140: setup-execution-semantics 2141: ; 2142: 2143: \ this is the resolver information from ":" 2144: \ resolving is done by ";" 2145: Variable ;Resolve 1 cells allot 2146: 2147: : hereresolve ( ghost -- ) 2148: there resolve 0 ;Resolve ! ; 2149: 2150: : Theader ( "name" -- ghost ) 2151: (THeader dup hereresolve ; 2152: 2153: Variable aprim-nr -20 aprim-nr ! 2154: 2155: : copy-execution-semantics ( ghost-from ghost-dest -- ) 2156: >r 2157: dup >exec @ r@ >exec ! 2158: dup >comp @ r@ >comp ! 2159: dup >exec2 @ r@ >exec2 ! 2160: dup >exec-compile @ r@ >exec-compile ! 2161: dup >ghost-xt @ r@ >ghost-xt ! 2162: dup >created @ r@ >created ! 2163: rdrop drop ; 2164: 2165: >TARGET 2166: 2167: : Alias ( cfa -- ) \ name 2168: >in @ skip? IF 2drop EXIT THEN >in ! 2169: (THeader ( S xt ghost ) 2170: 2dup swap xt>ghost swap copy-execution-semantics 2171: over resolve T A, H alias-mask flag! ; 2172: 2173: Variable last-prim-ghost 2174: 0 last-prim-ghost ! 2175: 2176: : asmprimname, ( ghost -- : name ) 2177: dup last-prim-ghost ! 2178: >r 2179: here bl word count string, r@ >asm-name ! 2180: aprim-nr @ r> >asm-dummyaddr ! ; 2181: 2182: Defer setup-prim-semantics 2183: 2184: : mapprim ( "forthname" "asmlabel" -- ) 2185: THeader -1 aprim-nr +! aprim-nr @ T A, H 2186: asmprimname, 2187: setup-prim-semantics ; 2188: 2189: : mapprim: ( "forthname" "asmlabel" -- ) 2190: -1 aprim-nr +! aprim-nr @ 2191: Ghost tuck swap resolve <do:> swap tuck >magic ! 2192: asmprimname, ; 2193: 2194: : Doer: ( cfa -- ) \ name 2195: >in @ skip? IF 2drop EXIT THEN >in ! 2196: dup 0< s" prims" T $has? H 0= and 2197: IF 2198: .sourcepos ." needs doer: " >in @ bl word count type >in ! cr 2199: THEN 2200: Ghost 2201: tuck swap resolve <do:> swap >magic ! ; 2202: 2203: Variable prim# 2204: : first-primitive ( n -- ) prim# ! ; 2205: : Primitive ( -- ) \ name 2206: >in @ skip? IF drop EXIT THEN >in ! 2207: s" prims" T $has? H 0= 2208: IF 2209: .sourcepos ." needs prim: " >in @ bl word count type >in ! cr 2210: THEN 2211: prim# @ (THeader ( S xt ghost ) 2212: ['] prim-resolved over >comp ! 2213: dup >ghost-flags <primitive> set-flag 2214: over resolve T A, H alias-mask flag! 2215: -1 prim# +! ; 2216: >CROSS 2217: 2218: \ Conditionals and Comments 11may93jaw 2219: 2220: \G saves the existing cond action, this is used for redefining in 2221: \G instant 2222: Variable cond-xt-old 2223: 2224: : cond-target ( -- ) 2225: \G Compiles semantic of redefined cond into new one 2226: cond-xt-old @ compile, ; immediate restrict 2227: 2228: : ;Cond 2229: postpone ; 2230: swap ! ; immediate 2231: 2232: : Cond: ( "name" -- ) 2233: \g defines a conditional or another word that must 2234: \g be executed directly while compiling 2235: \g these words have no interpretative semantics by default 2236: Ghost 2237: >exec-compile 2238: dup @ cond-xt-old ! 2239: :NONAME ; 2240: 2241: 2242: : Comment ( -- ) 2243: >in @ Ghost swap >in ! ' swap 2244: 2dup >exec-compile ! >exec ! ; 2245: 2246: Comment ( Comment \ 2247: 2248: \ compile 10may93jaw 2249: 2250: : compile ( "name" -- ) \ name 2251: findghost 2252: dup >exec-compile @ ?dup 2253: IF nip compile, 2254: ELSE postpone literal postpone gexecute THEN ; immediate restrict 2255: 2256: >TARGET 2257: 2258: : ' ( -- xt ) 2259: \G returns the target-cfa of a ghost 2260: bl word gfind 0= ABORT" CROSS: Ghost don't exists" 2261: g>xt ; 2262: 2263: \ FIXME: this works for the current use cases, but is not 2264: \ in all cases correct ;-) 2265: : comp' X ' 0 ; 2266: 2267: Cond: ['] T ' H alit, ;Cond 2268: 2269: >CROSS 2270: 2271: : [T'] 2272: \ returns the target-cfa of a ghost, or compiles it as literal 2273: postpone [G'] 2274: state @ IF postpone g>xt ELSE g>xt THEN ; immediate 2275: 2276: \ \ threading modell 13dec92py 2277: \ modularized 14jun97jaw 2278: 2279: T 2 cells H Value xt>body 2280: 2281: : (>body) ( cfa -- pfa ) 2282: xt>body + ; ' (>body) plugin-of t>body 2283: 2284: : fillcfa ( usedcells -- ) 2285: T cells H xt>body swap - 2286: assert1( dup 0 >= ) 2287: 0 ?DO 0 X c, tchar +LOOP ; 2288: 2289: : (doer,) ( ghost -- ) 2290: addr, 1 fillcfa ; ' (doer,) plugin-of doer, 2291: 2292: : (docol,) ( -- ) [G'] :docol (doer,) ; ' (docol,) plugin-of docol, 2293: 2294: ' NOOP plugin-of ca>native 2295: 2296: : (doprim,) ( -- ) 2297: there xt>body + ca>native T a, H 1 fillcfa ; ' (doprim,) plugin-of doprim, 2298: 2299: : (doeshandler,) ( -- ) 2300: T cfalign H [G'] :doesjump addr, T 0 , H ; ' (doeshandler,) plugin-of doeshandler, 2301: 2302: : (dodoes,) ( does-action-ghost -- ) 2303: ]comp [G'] :dodoes addr, comp[ 2304: addr, 2305: \ the relocator in the c engine, does not like the 2306: \ does-address to marked for relocation 2307: [ T e? ec H 0= [IF] ] T here H tcell - reloff [ [THEN] ] 2308: 2 fillcfa ; ' (dodoes,) plugin-of dodoes, 2309: 2310: : (dlit,) ( n -- ) compile lit td, ; ' (dlit,) plugin-of dlit, 2311: 2312: : (lit,) ( n -- ) s>d dlit, ; ' (lit,) plugin-of lit, 2313: 2314: \ if we dont produce relocatable code alit, defaults to lit, jaw 2315: \ this is just for convenience, so we don't have to define alit, 2316: \ seperately for embedded systems.... 2317: T has? relocate H 2318: [IF] 2319: : (alit,) ( n -- ) compile lit T a, H ; ' (alit,) plugin-of alit, 2320: [ELSE] 2321: : (alit,) ( n -- ) lit, ; ' (alit,) plugin-of alit, 2322: [THEN] 2323: 2324: : (fini,) compile ;s ; ' (fini,) plugin-of fini, 2325: 2326: [IFUNDEF] (code) 2327: Defer (code) 2328: Defer (end-code) 2329: [THEN] 2330: 2331: >TARGET 2332: : Code 2333: defempty? 2334: (THeader ( ghost ) 2335: ['] prim-resolved over >comp ! 2336: there resolve 2337: 2338: [ T e? prims H 0= [IF] T e? ITC H [ELSE] true [THEN] ] [IF] 2339: doprim, 2340: [THEN] 2341: depth (code) ; 2342: 2343: \ FIXME : no-compile -1 ABORT" this ghost is not for compilation" ; 2344: 2345: : Code: 2346: defempty? 2347: Ghost >r 2348: r@ there ca>native resolve 2349: <do:> r@ >magic ! 2350: r> drop 2351: depth (code) ; 2352: 2353: : end-code 2354: (end-code) 2355: depth ?dup IF 1- <> ABORT" CROSS: Stack changed" 2356: ELSE true ABORT" CROSS: Stack empty" THEN 2357: ; 2358: 2359: >CROSS 2360: 2361: \ tLiteral 12dec92py 2362: 2363: >TARGET 2364: Cond: \G T-\G ;Cond 2365: 2366: Cond: Literal ( n -- ) lit, ;Cond 2367: Cond: ALiteral ( n -- ) alit, ;Cond 2368: 2369: : Char ( "<char>" -- ) bl word char+ c@ ; 2370: Cond: [Char] ( "<char>" -- ) Char lit, ;Cond 2371: 2372: tchar 1 = [IF] 2373: Cond: chars ;Cond 2374: [THEN] 2375: 2376: \ some special literals 27jan97jaw 2377: 2378: \ !! Known Bug: Special Literals and plug-ins work only correct 2379: \ on 16 and 32 Bit Targets and 32 Bit Hosts! 2380: 2381: \ This section could be done with dlit, now. But first I need 2382: \ some test code JAW 2383: 2384: Cond: MAXU 2385: tcell 1 cells u> 2386: IF compile lit tcell 0 ?DO FF T c, H LOOP 2387: ELSE ffffffff lit, THEN 2388: ;Cond 2389: 2390: Cond: MINI 2391: tcell 1 cells u> 2392: IF compile lit bigendian 2393: IF 80 T c, H tcell 1 ?DO 0 T c, H LOOP 2394: ELSE tcell 1 ?DO 0 T c, H LOOP 80 T c, H 2395: THEN 2396: ELSE tcell 2 = IF 8000 ELSE 80000000 THEN lit, THEN 2397: ;Cond 2398: 2399: Cond: MAXI 2400: tcell 1 cells u> 2401: IF compile lit bigendian 2402: IF 7F T c, H tcell 1 ?DO FF T c, H LOOP 2403: ELSE tcell 1 ?DO FF T c, H LOOP 7F T c, H 2404: THEN 2405: ELSE tcell 2 = IF 7fff ELSE 7fffffff THEN lit, THEN 2406: ;Cond 2407: 2408: >CROSS 2409: 2410: \ Target compiling loop 12dec92py 2411: \ ">tib trick thrown out 10may93jaw 2412: \ number? defined at the top 11may93jaw 2413: \ replaced >in by save-input 2414: 2415: : discard 0 ?DO drop LOOP ; 2416: 2417: \ compiled word might leave items on stack! 2418: : tcom ( x1 .. xn n name -- ) 2419: \ dup count type space 2420: gfind 2421: IF >r ( discard saved input state ) discard r> 2422: dup >exec-compile @ ?dup 2423: IF nip execute-exec-compile ELSE gexecute THEN 2424: EXIT 2425: THEN 2426: number? dup 2427: IF 0> IF swap lit, THEN lit, discard 2428: ELSE 2drop restore-input throw Ghost gexecute THEN ; 2429: 2430: \ : ; DOES> 13dec92py 2431: \ ] 9may93py/jaw 2432: 2433: >CROSS 2434: 2435: : compiling-state ( -- ) 2436: \G set states to compililng 2437: Compiling comp-state ! 2438: \ if we have a state in target, change it with the compile state 2439: [G'] state dup undefined? 0= 2440: IF >ghost-xt @ execute X on ELSE drop THEN ; 2441: 2442: : interpreting-state ( -- ) 2443: \G set states to interpreting 2444: \ if target has a state variable, change it according to our state 2445: [G'] state dup undefined? 0= 2446: IF >ghost-xt @ execute X off ELSE drop THEN 2447: Interpreting comp-state ! ; 2448: 2449: >TARGET 2450: 2451: : ] 2452: compiling-state 2453: BEGIN 2454: BEGIN save-input bl word 2455: dup c@ 0= WHILE drop discard refill 0= 2456: ABORT" CROSS: End of file while target compiling" 2457: REPEAT 2458: tcom 2459: compiling? 0= 2460: UNTIL ; 2461: 2462: \ by the way: defining a second interpreter (a compiler-)loop 2463: \ is not allowed if a system should be ans conform 2464: 2465: : (:) ( ghost -- ) 2466: \ common factor of : and :noname. Prepare ;Resolve and start definition 2467: ;Resolve ! there ;Resolve cell+ ! 2468: docol, ]comp colon-start depth T ] H ; 2469: 2470: : : ( -- colon-sys ) \ Name 2471: defempty? 2472: constflag off \ don't let this flag work over colon defs 2473: \ just to go sure nothing unwanted happens 2474: >in @ skip? IF drop skip-defs EXIT THEN >in ! 2475: (THeader (:) ; 2476: 2477: : :noname ( -- colon-sys ) 2478: X cfalign there 2479: \ define a nameless ghost 2480: here ghostheader dup last-header-ghost ! dup to lastghost 2481: (:) ; 2482: 2483: Cond: EXIT ( -- ) compile ;S ;Cond 2484: 2485: Cond: ?EXIT ( -- ) 1 abort" CROSS: using ?exit" ;Cond 2486: 2487: >CROSS 2488: : LastXT ;Resolve @ 0= abort" CROSS: no definition for LastXT" 2489: ;Resolve cell+ @ ; 2490: 2491: >TARGET 2492: 2493: Cond: recurse ( -- ) Last-Header-Ghost @ gexecute ;Cond 2494: 2495: Cond: ; ( -- ) 2496: depth ?dup 2497: IF 1- <> ABORT" CROSS: Stack changed" 2498: ELSE true ABORT" CROSS: Stack empty" 2499: THEN 2500: colon-end 2501: fini, 2502: comp[ 2503: ;Resolve @ 2504: IF ['] colon-resolved ;Resolve @ >comp ! 2505: ;Resolve @ ;Resolve cell+ @ resolve 2506: THEN 2507: interpreting-state 2508: ;Cond 2509: 2510: Cond: [ ( -- ) interpreting-state ;Cond 2511: 2512: >CROSS 2513: 2514: 0 Value created 2515: 2516: : !does ( does-action -- ) 2517: tlastcfa @ [G'] :dovar killref 2518: >space here >r ghostheader space> 2519: ['] colon-resolved r@ >comp ! 2520: r@ created >do:ghost ! r@ swap resolve 2521: r> tlastcfa @ >tempdp dodoes, tempdp> ; 2522: 2523: Defer instant-interpret-does>-hook 2524: 2525: : does-resolved ( ghost -- ) 2526: compile does-exec g>xt T a, H ; 2527: 2528: : resolve-does>-part ( -- ) 2529: \ resolve words made by builders 2530: Last-Header-Ghost @ >do:ghost @ ?dup 2531: IF there resolve THEN ; 2532: 2533: >TARGET 2534: Cond: DOES> 2535: compile (does>) doeshandler, 2536: resolve-does>-part 2537: ;Cond 2538: 2539: : DOES> 2540: ['] does-resolved created >comp ! 2541: switchrom doeshandler, T here H !does 2542: instant-interpret-does>-hook 2543: depth T ] H ; 2544: 2545: >CROSS 2546: \ Creation 01nov92py 2547: 2548: \ Builder 11may93jaw 2549: 2550: 0 Value built 2551: 2552: : Builder ( Create-xt do-ghost "name" -- ) 2553: \ builds up a builder in current vocabulary 2554: \ create-xt is executed when word is interpreted 2555: \ do:-xt is executed when the created word from builder is executed 2556: \ for do:-xt an additional entry after the normal ghost-entrys is used 2557: 2558: ghost to built 2559: built >created @ 0= IF 2560: built >created on 2561: THEN ; 2562: 2563: : gdoes, ( ghost -- ) 2564: \ makes the codefield for a word that is built 2565: >do:ghost @ dup undefined? 0= 2566: IF 2567: dup >magic @ <do:> = 2568: IF doer, 2569: ELSE dodoes, 2570: THEN 2571: EXIT 2572: THEN 2573: \ compile :dodoes gexecute 2574: \ T here H tcell - reloff 2575: 2 refered 2576: 0 fillcfa 2577: ; 2578: 2579: : takeover-x-semantics ( S constructor-ghost new-ghost -- ) 2580: \g stores execution semantic and compilation semantic in the built word 2581: swap >do:ghost @ 2dup swap >do:ghost ! 2582: \ we use the >exec2 field for the semantic of a created word, 2583: \ using exec or exec2 makes no difference for normal cross-compilation 2584: \ but is usefull for instant where the exec field is already 2585: \ defined (e.g. Vocabularies) 2586: 2dup >exec @ swap >exec2 ! 2587: >comp @ swap >comp ! ; 2588: 2589: 0 Value createhere 2590: 2591: : create-resolve ( -- ) 2592: created createhere resolve 0 ;Resolve ! ; 2593: : create-resolve-immediate ( -- ) 2594: create-resolve T immediate H ; 2595: 2596: : TCreate ( <name> -- ) 2597: create-forward-warn 2598: IF ['] reswarn-forward IS resolve-warning THEN 2599: executed-ghost @ (Theader 2600: dup >created on dup to created 2601: 2dup takeover-x-semantics 2602: there to createhere drop gdoes, ; 2603: 2604: : RTCreate ( <name> -- ) 2605: \ creates a new word with code-field in ram 2606: create-forward-warn 2607: IF ['] reswarn-forward IS resolve-warning THEN 2608: \ make Alias 2609: executed-ghost @ (THeader 2610: dup >created on dup to created 2611: 2dup takeover-x-semantics 2612: there 0 T a, H alias-mask flag! 2613: \ store poiter to code-field 2614: switchram T cfalign H 2615: there swap T ! H 2616: there tlastcfa ! 2617: there to createhere drop gdoes, ; 2618: 2619: : Build: ( -- [xt] [colon-sys] ) 2620: :noname postpone TCreate ; 2621: 2622: : BuildSmart: ( -- [xt] [colon-sys] ) 2623: :noname 2624: [ T has? rom H [IF] ] 2625: postpone RTCreate 2626: [ [ELSE] ] 2627: postpone TCreate 2628: [ [THEN] ] ; 2629: 2630: : ;Build 2631: postpone create-resolve postpone ; built >exec ! ; immediate 2632: 2633: : ;Build-immediate 2634: postpone create-resolve-immediate 2635: postpone ; built >exec ! ; immediate 2636: 2637: : gdoes> ( ghost -- addr flag ) 2638: executed-ghost @ g>body ; 2639: 2640: \ DO: ;DO 11may93jaw 2641: 2642: : do:ghost! ( ghost -- ) built >do:ghost ! ; 2643: : doexec! ( xt -- ) built >do:ghost @ >exec ! ; 2644: 2645: : DO: ( -- [xt] [colon-sys] ) 2646: here ghostheader do:ghost! 2647: :noname postpone gdoes> ; 2648: 2649: : by: ( -- [xt] [colon-sys] ) \ name 2650: Ghost do:ghost! 2651: :noname postpone gdoes> ; 2652: 2653: : ;DO ( [xt] [colon-sys] -- ) 2654: postpone ; doexec! ; immediate 2655: 2656: : by ( -- ) \ Name 2657: Ghost >do:ghost @ do:ghost! ; 2658: 2659: : compile: ( --[xt] [colon-sys] ) 2660: \G defines a compile time action for created words 2661: \G by this builder 2662: :noname ; 2663: 2664: : ;compile ( [xt] [colon-sys] -- ) 2665: postpone ; built >do:ghost @ >comp ! ; immediate 2666: 2667: \ Variables and Constants 05dec92py 2668: 2669: Builder (Constant) 2670: Build: ( n -- ) ;Build 2671: by: :docon ( target-body-addr -- n ) T @ H ;DO 2672: 2673: Builder Constant 2674: Build: ( n -- ) T , H ;Build 2675: by (Constant) 2676: 2677: Builder AConstant 2678: Build: ( n -- ) T A, H ;Build 2679: by (Constant) 2680: 2681: Builder 2Constant 2682: Build: ( d -- ) T , , H ;Build 2683: DO: ( ghost -- d ) T dup cell+ @ swap @ H ;DO 2684: 2685: Builder Create 2686: BuildSmart: ;Build 2687: by: :dovar ( target-body-addr -- addr ) ;DO 2688: 2689: Builder Variable 2690: T has? rom H [IF] 2691: Build: ( -- ) T here 0 A, H switchram T align here swap ! 0 , H ( switchrom ) ;Build 2692: by (Constant) 2693: [ELSE] 2694: Build: T 0 , H ;Build 2695: by Create 2696: [THEN] 2697: 2698: Builder 2Variable 2699: T has? rom H [IF] 2700: Build: ( -- ) T here 0 A, H switchram T align here swap ! 0 , 0 , H ( switchrom ) ;Build 2701: by (Constant) 2702: [ELSE] 2703: Build: T 0 , 0 , H ;Build 2704: by Create 2705: [THEN] 2706: 2707: Builder AVariable 2708: T has? rom H [IF] 2709: Build: ( -- ) T here 0 A, H switchram T align here swap ! 0 A, H ( switchrom ) ;Build 2710: by (Constant) 2711: [ELSE] 2712: Build: T 0 A, H ;Build 2713: by Create 2714: [THEN] 2715: 2716: \ User variables 04may94py 2717: 2718: Variable tup 0 tup ! 2719: Variable tudp 0 tudp ! 2720: 2721: : u, ( n -- udp ) 2722: tup @ tudp @ + T ! H 2723: tudp @ dup T cell+ H tudp ! ; 2724: 2725: : au, ( n -- udp ) 2726: tup @ tudp @ + T A! H 2727: tudp @ dup T cell+ H tudp ! ; 2728: 2729: Builder User 2730: Build: 0 u, X , ;Build 2731: by: :douser ( ghost -- up-addr ) X @ tup @ + ;DO 2732: 2733: Builder 2User 2734: Build: 0 u, X , 0 u, drop ;Build 2735: by User 2736: 2737: Builder AUser 2738: Build: 0 au, X , ;Build 2739: by User 2740: 2741: Builder (Value) 2742: Build: ( n -- ) ;Build 2743: by: :docon ( target-body-addr -- n ) T @ H ;DO 2744: 2745: Builder Value 2746: BuildSmart: T , H ;Build 2747: by (Value) 2748: 2749: Builder AValue 2750: BuildSmart: T A, H ;Build 2751: by (Value) 2752: 2753: Defer texecute 2754: 2755: Builder Defer 2756: BuildSmart: ( -- ) [T'] noop T A, H ;Build 2757: by: :dodefer ( ghost -- ) X @ texecute ;DO 2758: 2759: Builder interpret/compile: 2760: Build: ( inter comp -- ) swap T A, A, H ;Build-immediate 2761: DO: ( ghost -- ) ABORT" CROSS: Don't execute" ;DO 2762: 2763: \ Sturctures 23feb95py 2764: 2765: : nalign ( addr1 n -- addr2 ) 2766: \ addr2 is the aligned version of addr1 wrt the alignment size n 2767: 1- tuck + swap invert and ; 2768: 2769: 2770: Builder (Field) 2771: Build: ;Build 2772: by: :dofield T @ H + ;DO 2773: 2774: Builder Field 2775: Build: ( align1 offset1 align size "name" -- align2 offset2 ) 2776: rot dup T , H ( align1 align size offset1 ) 2777: + >r nalign r> ;Build 2778: by (Field) 2779: 2780: >TARGET 2781: : struct T 1 chars 0 H ; 2782: : end-struct T 2Constant H ; 2783: 2784: : cell% ( n -- size align ) 2785: T 1 cells H dup ; 2786: >CROSS 2787: 2788: \ Input-Methods 01py 2789: 2790: Builder input-method 2791: Build: ( m v -- m' v ) dup T , cell+ H ;Build 2792: DO: abort" Not in cross mode" ;DO 2793: 2794: Builder input-var 2795: Build: ( m v size -- m v' ) over T , H + ;Build 2796: DO: abort" Not in cross mode" ;DO 2797: 2798: \ Peephole optimization 05sep01jaw 2799: 2800: \ this section defines different compilation 2801: \ actions for created words 2802: \ this will help the peephole optimizer 2803: \ I (jaw) took this from bernds latest cross-compiler 2804: \ changes but seperated it from the original 2805: \ Builder words. The final plan is to put this 2806: \ into a seperate file, together with the peephole 2807: \ optimizer for cross 2808: 2809: 2810: T has? peephole H [IF] 2811: 2812: >CROSS 2813: 2814: : (callc) compile call T >body a, H ; ' (callc) plugin-of colon, 2815: : (callcm) T here 0 a, 0 a, H ; ' (callcm) plugin-of colonmark, 2816: : (call-res) >tempdp resolved gexecute tempdp> drop ; 2817: ' (call-res) plugin-of colon-resolve 2818: : (pprim) dup 0< IF $4000 - ELSE 2819: cr ." wrong usage of (prim) " 2820: dup gdiscover IF .ghost ELSE . THEN cr -1 throw THEN 2821: T a, H ; ' (pprim) plugin-of prim, 2822: 2823: \ if we want this, we have to spilt aconstant 2824: \ and constant!! 2825: \ Builder (Constant) 2826: \ compile: g>body X @ lit, ;compile 2827: 2828: Builder (Constant) 2829: compile: g>body compile lit@ T a, H ;compile 2830: 2831: Builder (Value) 2832: compile: g>body compile lit@ T a, H ;compile 2833: 2834: \ this changes also Variable, AVariable and 2Variable 2835: Builder Create 2836: compile: g>body alit, ;compile 2837: 2838: Builder User 2839: compile: g>body compile useraddr T @ , H ;compile 2840: 2841: Builder Defer 2842: compile: g>body compile lit-perform T A, H ;compile 2843: 2844: Builder (Field) 2845: compile: g>body T @ H compile lit+ T , H ;compile 2846: 2847: Builder interpret/compile: 2848: compile: does-resolved ;compile 2849: 2850: Builder input-method 2851: compile: does-resolved ;compile 2852: 2853: Builder input-var 2854: compile: does-resolved ;compile 2855: 2856: [THEN] 2857: 2858: \ structural conditionals 17dec92py 2859: 2860: >CROSS 2861: : (ncontrols?) ( n -- ) 2862: \g We expect n open control structures 2863: depth over u<= 2864: ABORT" CROSS: unstructured, stack underflow" 2865: 0 ?DO I pick 0= 2866: ABORT" CROSS: unstructured" 2867: LOOP ; ' (ncontrols?) plugin-of ncontrols? 2868: 2869: \ : ?struc ( flag -- ) ABORT" CROSS: unstructured " ; 2870: \ : sys? ( sys -- sys ) dup 0= ?struc ; 2871: 2872: : >mark ( -- sys ) T here ( dup ." M" hex. ) 0 , H ; 2873: 2874: : branchoffset ( src dest -- ) - tchar / ; \ ?? jaw 2875: 2876: : >resolve ( sys -- ) 2877: X here ( dup ." >" hex. ) over branchoffset swap X ! ; 2878: 2879: : <resolve ( sys -- ) 2880: X here ( dup ." <" hex. ) branchoffset X , ; 2881: 2882: :noname compile branch X here branchoffset X , ; 2883: IS branch, ( target-addr -- ) 2884: :noname compile ?branch X here branchoffset X , ; 2885: IS ?branch, ( target-addr -- ) 2886: :noname compile branch T here 0 , H ; 2887: IS branchmark, ( -- branchtoken ) 2888: :noname compile ?branch T here 0 , H ; 2889: IS ?branchmark, ( -- branchtoken ) 2890: :noname T here 0 , H ; 2891: IS ?domark, ( -- branchtoken ) 2892: :noname dup X @ ?struc X here over branchoffset swap X ! ; 2893: IS branchtoresolve, ( branchtoken -- ) 2894: :noname branchto, X here ; 2895: IS branchtomark, ( -- target-addr ) 2896: 2897: >TARGET 2898: 2899: \ Structural Conditionals 12dec92py 2900: 2901: \ CLEANUP Cond: BUT sys? swap ;Cond 2902: \ CLEANUP Cond: YET sys? dup ;Cond 2903: 2904: >CROSS 2905: 2906: Variable tleavings 0 tleavings ! 2907: 2908: : (done) ( addr -- ) 2909: tleavings @ 2910: BEGIN dup 2911: WHILE 2912: >r dup r@ cell+ @ \ address of branch 2913: u> 0= \ lower than DO? 2914: WHILE 2915: r@ 2 cells + @ \ branch token 2916: branchtoresolve, 2917: r@ @ r> free throw 2918: REPEAT r> THEN 2919: tleavings ! drop ; 2920: 2921: >TARGET 2922: 2923: \ What for? ANS? JAW Cond: DONE ( addr -- ) (done) ;Cond 2924: 2925: >CROSS 2926: : (leave) ( branchtoken -- ) 2927: 3 cells allocate throw >r 2928: T here H r@ cell+ ! 2929: r@ 2 cells + ! 2930: tleavings @ r@ ! 2931: r> tleavings ! ; 2932: >TARGET 2933: 2934: : (leave,) ( -- ) 2935: branchmark, (leave) ; ' (leave,) plugin-of leave, 2936: 2937: : (?leave,) ( -- ) 2938: compile 0= ?branchmark, (leave) ; ' (?leave,) plugin-of ?leave, 2939: 2940: Cond: LEAVE leave, ;Cond 2941: Cond: ?LEAVE ?leave, ;Cond 2942: 2943: >CROSS 2944: \ !!JW ToDo : Move to general tools section 2945: 2946: : to1 ( x1 x2 xn n -- addr ) 2947: \G packs n stack elements in am allocated memory region 2948: dup dup 1+ cells allocate throw dup >r swap 1+ 2949: 0 DO tuck ! cell+ LOOP 2950: drop r> ; 2951: 2952: : 1to ( addr -- x1 x2 xn ) 2953: \G unpacks the elements saved by to1 2954: dup @ swap over cells + swap 2955: 0 DO dup @ swap 1 cells - LOOP 2956: free throw ; 2957: 2958: : loop] branchto, dup <resolve tcell - (done) ; 2959: 2960: : skiploop] ?dup IF branchto, branchtoresolve, THEN ; 2961: 2962: >TARGET 2963: 2964: \ Structural Conditionals 12dec92py 2965: 2966: : (cs-swap) ( x1 x2 -- x2 x1 ) 2967: swap ; ' (cs-swap) plugin-of cs-swap 2968: 2969: : (ahead,) branchmark, ; ' (ahead,) plugin-of ahead, 2970: 2971: : (if,) ?branchmark, ; ' (if,) plugin-of if, 2972: 2973: : (then,) branchto, branchtoresolve, ; ' (then,) plugin-of then, 2974: 2975: : (else,) ( ahead ) branchmark, 2976: swap 2977: ( then ) branchto, branchtoresolve, ; ' (else,) plugin-of else, 2978: 2979: : (begin,) branchtomark, ; ' (begin,) plugin-of begin, 2980: 2981: : (while,) ( if ) ?branchmark, 2982: swap ; ' (while,) plugin-of while, 2983: 2984: : (again,) branch, ; ' (again,) plugin-of again, 2985: 2986: : (until,) ?branch, ; ' (until,) plugin-of until, 2987: 2988: : (repeat,) ( again ) branch, 2989: ( then ) branchto, branchtoresolve, ; ' (repeat,) plugin-of repeat, 2990: 2991: : (case,) ( -- n ) 2992: 0 ; ' (case,) plugin-of case, 2993: 2994: : (of,) ( n -- x1 n ) 2995: 1+ >r 2996: compile over compile = 2997: if, compile drop r> ; ' (of,) plugin-of of, 2998: 2999: : (endof,) ( x1 n -- x2 n ) 3000: >r 1 ncontrols? else, r> ; ' (endof,) plugin-of endof, 3001: 3002: : (endcase,) ( x1 .. xn n -- ) 3003: compile drop 0 ?DO 1 ncontrols? then, LOOP ; ' (endcase,) plugin-of endcase, 3004: 3005: >TARGET 3006: Cond: AHEAD ahead, ;Cond 3007: Cond: IF if, ;Cond 3008: Cond: THEN 1 ncontrols? then, ;Cond 3009: Cond: ENDIF 1 ncontrols? then, ;Cond 3010: Cond: ELSE 1 ncontrols? else, ;Cond 3011: 3012: Cond: BEGIN begin, ;Cond 3013: Cond: WHILE 1 ncontrols? while, ;Cond 3014: Cond: AGAIN 1 ncontrols? again, ;Cond 3015: Cond: UNTIL 1 ncontrols? until, ;Cond 3016: Cond: REPEAT 2 ncontrols? repeat, ;Cond 3017: 3018: Cond: CASE case, ;Cond 3019: Cond: OF of, ;Cond 3020: Cond: ENDOF endof, ;Cond 3021: Cond: ENDCASE endcase, ;Cond 3022: 3023: \ Structural Conditionals 12dec92py 3024: 3025: : (do,) ( -- target-addr ) 3026: \ ?? i think 0 is too much! jaw 3027: 0 compile (do) 3028: branchtomark, 2 to1 ; ' (do,) plugin-of do, 3029: 3030: \ alternative for if no ?do 3031: \ : (do,) 3032: \ compile 2dup compile = compile IF 3033: \ compile 2drop compile ELSE 3034: \ compile (do) branchtomark, 2 to1 ; 3035: 3036: : (?do,) ( -- target-addr ) 3037: 0 compile (?do) ?domark, (leave) 3038: branchtomark, 2 to1 ; ' (?do,) plugin-of ?do, 3039: 3040: : (for,) ( -- target-addr ) 3041: compile (for) branchtomark, ; ' (for,) plugin-of for, 3042: 3043: : (loop,) ( target-addr -- ) 3044: 1to compile (loop) loop] 3045: compile unloop skiploop] ; ' (loop,) plugin-of loop, 3046: 3047: : (+loop,) ( target-addr -- ) 3048: 1to compile (+loop) loop] 3049: compile unloop skiploop] ; ' (+loop,) plugin-of +loop, 3050: 3051: : (next,) 3052: compile (next) loop] compile unloop ; ' (next,) plugin-of next, 3053: 3054: Cond: DO do, ;Cond 3055: Cond: ?DO ?do, ;Cond 3056: Cond: FOR for, ;Cond 3057: 3058: Cond: LOOP 1 ncontrols? loop, ;Cond 3059: Cond: +LOOP 1 ncontrols? +loop, ;Cond 3060: Cond: NEXT 1 ncontrols? next, ;Cond 3061: 3062: \ String words 23feb93py 3063: 3064: : ," [char] " parse ht-string, X align ; 3065: 3066: Cond: ." compile (.") T ," H ;Cond 3067: Cond: S" compile (S") T ," H ;Cond 3068: Cond: C" compile (C") T ," H ;Cond 3069: Cond: ABORT" compile (ABORT") T ," H ;Cond 3070: 3071: Cond: IS T ' >body H compile ALiteral compile ! ;Cond 3072: : IS T >address ' >body ! H ; 3073: Cond: TO T ' >body H compile ALiteral compile ! ;Cond 3074: : TO T ' >body ! H ; 3075: 3076: Cond: defers T ' >body @ compile, H ;Cond 3077: 3078: \ LINKED ERR" ENV" 2ENV" 18may93jaw 3079: 3080: \ linked list primitive 3081: : linked X here over X @ X A, swap X ! ; 3082: : chained T linked A, H ; 3083: 3084: : err" s" ErrLink linked" evaluate T , H 3085: [char] " parse ht-string, X align ; 3086: 3087: : env" [char] " parse s" EnvLink linked" evaluate 3088: ht-string, X align X , ; 3089: 3090: : 2env" [char] " parse s" EnvLink linked" evaluate 3091: here >r ht-string, X align X , X , 3092: r> dup T c@ H 80 and swap T c! H ; 3093: 3094: \ compile must be last 22feb93py 3095: 3096: Cond: [compile] ( -- ) \ name 3097: \g For immediate words, works even if forward reference 3098: bl word gfind 0= ABORT" CROSS: Can't compile" 3099: (gexecute) ;Cond 3100: 3101: Cond: postpone ( -- ) \ name 3102: bl word gfind 0= ABORT" CROSS: Can't compile" 3103: dup >magic @ <fwd> = 3104: ABORT" CROSS: Can't postpone on forward declaration" 3105: dup >magic @ <imm> = 3106: IF (gexecute) 3107: ELSE compile (compile) addr, THEN ;Cond 3108: 3109: \ save-cross 17mar93py 3110: 3111: hex 3112: 3113: >CROSS 3114: Create magic s" Gforth2x" here over allot swap move 3115: 3116: bigendian 1+ \ strangely, in magic big=0, little=1 3117: tcell 1 = 0 and or 3118: tcell 2 = 2 and or 3119: tcell 4 = 4 and or 3120: tcell 8 = 6 and or 3121: tchar 1 = 00 and or 3122: tchar 2 = 28 and or 3123: tchar 4 = 50 and or 3124: tchar 8 = 78 and or 3125: magic 7 + c! 3126: 3127: : save-cross ( "image-name" "binary-name" -- ) 3128: bl parse ." Saving to " 2dup type cr 3129: w/o bin create-file throw >r 3130: s" header" X $has? IF 3131: s" #! " r@ write-file throw 3132: bl parse r@ write-file throw 3133: s" --image-file" r@ write-file throw 3134: #lf r@ emit-file throw 3135: r@ dup file-position throw drop 8 mod 8 swap ( file-id limit index ) 3136: ?do 3137: bl over emit-file throw 3138: loop 3139: drop 3140: magic 8 r@ write-file throw \ write magic 3141: ELSE 3142: bl parse 2drop 3143: THEN 3144: image @ there 3145: r@ write-file throw \ write image 3146: s" relocate" X $has? IF 3147: bit$ @ there 1- tcell>bit rshift 1+ 3148: r@ write-file throw \ write tags 3149: THEN 3150: r> close-file throw ; 3151: 3152: : save-region ( addr len -- ) 3153: bl parse w/o bin create-file throw >r 3154: swap >image swap r@ write-file throw 3155: r> close-file throw ; 3156: 3157: \ save-asm-region 29aug01jaw 3158: 3159: Variable name-ptr 3160: Create name-buf 200 chars allot 3161: : init-name-buf name-buf name-ptr ! ; 3162: : nb, name-ptr @ c! 1 chars name-ptr +! ; 3163: : $nb, ( adr len -- ) bounds ?DO I c@ nb, LOOP ; 3164: : @nb name-ptr @ name-buf tuck - ; 3165: 3166: \ stores a usefull string representation of the character 3167: \ in the name buffer 3168: : name-char, ( c -- ) 3169: dup 'a 'z 1+ within IF nb, EXIT THEN 3170: dup 'A 'Z 1+ within IF $20 + nb, EXIT THEN 3171: dup '0 '9 1+ within IF nb, EXIT THEN 3172: CASE '+ OF s" _PLUS" $nb, ENDOF 3173: '- OF s" _MINUS" $nb, ENDOF 3174: '* OF s" _STAR" $nb, ENDOF 3175: '/ OF s" _SLASH" $nb, ENDOF 3176: '' OF s" _TICK" $nb, ENDOF 3177: '( OF s" _OPAREN" $nb, ENDOF 3178: ') OF s" _CPAREN" $nb, ENDOF 3179: '[ OF s" _OBRACKET" $nb, ENDOF 3180: '] OF s" _CBRACKET" $nb, ENDOF 3181: '! OF s" _STORE" $nb, ENDOF 3182: '@ OF s" _FETCH" $nb, ENDOF 3183: '> OF s" _GREATER" $nb, ENDOF 3184: '< OF s" _LESS" $nb, ENDOF 3185: '= OF s" _EQUAL" $nb, ENDOF 3186: '# OF s" _HASH" $nb, ENDOF 3187: '? OF s" _QUEST" $nb, ENDOF 3188: ': OF s" _COL" $nb, ENDOF 3189: '; OF s" _SEMICOL" $nb, ENDOF 3190: ', OF s" _COMMA" $nb, ENDOF 3191: '. OF s" _DOT" $nb, ENDOF 3192: '" OF s" _DQUOT" $nb, ENDOF 3193: dup 3194: base @ >r hex s>d <# #s 'X hold '_ hold #> $nb, r> base ! 3195: ENDCASE ; 3196: 3197: : label-from-ghostname ( ghost -- addr len ) 3198: dup >ghostname init-name-buf 'L nb, bounds 3199: ?DO I c@ name-char, LOOP 3200: \ we add the address to a name to make in unique 3201: \ because one name may appear more then once 3202: \ there are names (e.g. boot) that may be reference from other 3203: \ assembler source files, so we declare them as unique 3204: \ and don't add the address suffix 3205: dup >ghost-flags @ <unique> and 0= 3206: IF s" __" $nb, >link @ base @ >r hex 0 <# #s 'L hold #> r> base ! $nb, 3207: ELSE drop 3208: THEN 3209: @nb ; 3210: 3211: \ FIXME why disabled?! 3212: : label-from-ghostnameXX ( ghost -- addr len ) 3213: \ same as (label-from-ghostname) but caches generated names 3214: dup >asm-name @ ?dup IF nip count EXIT THEN 3215: \ dup >r (label-from-ghostname) 2dup 3216: align here >r string, align 3217: r> r> >asm-name ! ; 3218: 3219: : primghostdiscover ( xt -- ghost true | xt false ) 3220: dup 0= IF false EXIT THEN 3221: >r last-prim-ghost 3222: BEGIN @ dup 3223: WHILE dup >asm-dummyaddr @ r@ = 3224: IF rdrop true EXIT THEN 3225: REPEAT 3226: drop r> false ; 3227: 3228: : gdiscover2 ( xt -- ghost true | xt false ) 3229: dup taddr>region 0= IF false EXIT THEN 3230: dup (>regiontype) @ dup 0= IF drop false EXIT THEN 3231: addr-xt-ghost @ dup 0= IF drop false EXIT THEN 3232: nip true ; 3233: \ dup >ghost-name @ IF nip true ELSE drop false THEN ; 3234: 3235: \ generates a label name for the target address 3236: : generate-label-name ( taddr -- addr len ) 3237: gdiscover2 3238: IF dup >magic @ <do:> = 3239: IF >asm-name @ count EXIT THEN 3240: label-from-ghostname 3241: ELSE 3242: primghostdiscover 3243: IF >asm-name @ count 3244: ELSE base @ >r hex 0 <# #s 'L hold #> r> base ! 3245: THEN 3246: THEN ; 3247: 3248: Variable outfile-fd 3249: 3250: : $out ( adr len -- ) outfile-fd @ write-file throw ; 3251: : nlout newline $out ; 3252: : .ux ( n -- ) 3253: base @ hex swap 0 <# #S #> $out base ! ; 3254: 3255: : save-asm-region-part-aligned ( taddr len -- 'taddr 'len ) 3256: dup cell/ 0 3257: ?DO nlout s" .word " $out over @relbit 3258: IF over X @ generate-label-name $out 3259: ELSE over X @ s" 0x0" $out .ux 3260: THEN 3261: tcell /string 3262: LOOP ; 3263: 3264: : print-bytes ( taddr len n -- taddr' len' ) 3265: over min dup 0> 3266: IF nlout s" .byte " $out 0 3267: ?DO I 0> IF s" , " $out THEN 3268: over X c@ s" 0x0" $out .ux 1 /string 3269: LOOP 3270: THEN ; 3271: 3272: : save-asm-region-part ( addr len -- ) 3273: over dup X aligned swap - ?dup 3274: IF print-bytes THEN 3275: save-asm-region-part-aligned 3276: dup dup X aligned swap - ?dup 3277: IF 2 pick @relbit ABORT" relocated field splitted" 3278: print-bytes 3279: THEN 3280: 2drop ; 3281: 3282: : print-label ( taddr -- ) 3283: nlout generate-label-name $out s" :" $out ; 3284: 3285: : snl-calc ( taddr taddr2 -- ) 3286: tuck over - ; 3287: 3288: : skip-nolables ( taddr -- taddr2 taddr len ) 3289: \G skips memory region where no lables are defined 3290: \G starting from taddr+1 3291: \G Labels will be introduced for each reference mark 3292: \G in addr-refs. 3293: \G This word deals with lables at byte addresses as well. 3294: \G The main idea is to have an intro part which 3295: \G skips until the next cell boundary, the middle part 3296: \G which skips whole cells very efficiently and the third 3297: \G part which skips the bytes to the label in a cell 3298: dup 1+ dup (>regiontype) 3299: ( S taddr taddr-realstart type-addr ) 3300: dup @ dup IF addr-refs @ THEN 3301: swap >r 3302: over align+ tuck tcell swap - rshift swap 0 3303: DO dup 1 and 3304: IF drop rdrop snl-calc UNLOOP EXIT THEN 3305: 2/ swap 1+ swap 3306: LOOP 3307: drop r> cell+ 3308: ( S .. taddr2 type-addr ) dup 3309: BEGIN dup @ dup IF addr-refs @ THEN 0= WHILE cell+ REPEAT 3310: dup >r swap - 1 cells / tcell * + r> 3311: ( S .. taddr2+skiplencells type-addr ) 3312: @ addr-refs @ 1 tcell lshift or 3313: BEGIN dup 1 and 0= WHILE swap 1+ swap 2/ REPEAT drop 3314: ( S .. taddr2+skiplencells+skiplenbytes ) 3315: snl-calc ; 3316: 3317: : insert-label ( taddr -- ) 3318: dup 0= IF drop EXIT THEN 3319: \ ignore everything which points outside our memory regions 3320: \ maybe a primitive pointer or whatever 3321: dup taddr>region 0= IF drop EXIT THEN 3322: dup >r (>regiontype) define-addr-struct addr-refs dup @ 3323: r> tcell 1- and 1 swap lshift or swap ! ; 3324: 3325: \ this generates a sorted list of addresses which must be labels 3326: \ it scans therefore a whole region 3327: : generate-label-list-region ( taddr len -- ) 3328: BEGIN over @relbit IF over X @ insert-label THEN 3329: tcell /string dup 0< 3330: UNTIL 2drop ; 3331: 3332: : generate-label-list ( -- ) 3333: region-link 3334: BEGIN @ dup WHILE 3335: dup 0 >rlink - extent 3336: ?dup IF generate-label-list-region ELSE drop THEN 3337: REPEAT drop ; 3338: 3339: : create-outfile ( addr len -- ) 3340: w/o bin create-file throw outfile-fd ! ; 3341: 3342: : close-outfile ( -- ) 3343: outfile-fd @ close-file throw ; 3344: 3345: : (save-asm-region) ( region -- ) 3346: \ ." label list..." 3347: generate-label-list 3348: \ ." ok!" cr 3349: extent ( S taddr len ) 3350: over insert-label 3351: 2dup + dup insert-label >r ( R end-label ) 3352: ( S taddr len ) drop 3353: BEGIN 3354: dup print-label 3355: dup r@ <> WHILE 3356: skip-nolables save-asm-region-part 3357: REPEAT drop rdrop ; 3358: 3359: : lineout ( addr len -- ) 3360: outfile-fd @ write-line throw ; 3361: 3362: : save-asm-region ( region adr len -- ) 3363: create-outfile (save-asm-region) close-outfile ; 3364: 3365: \ \ minimal definitions 3366: 3367: >MINIMAL also minimal 3368: 3369: \ Usefull words 13feb93py 3370: 3371: : KB 400 * ; 3372: 3373: \ \ [IF] [ELSE] [THEN] ... 14sep97jaw 3374: 3375: \ it is useful to define our own structures and not to rely 3376: \ on the words in the host system 3377: \ The words in the host system might be defined with vocabularies 3378: \ this doesn't work with our self-made compile-loop 3379: 3380: Create parsed 20 chars allot \ store word we parsed 3381: 3382: : upcase 3383: parsed count bounds 3384: ?DO I c@ toupper I c! LOOP ; 3385: 3386: : [ELSE] 3387: 1 BEGIN 3388: BEGIN bl word count dup WHILE 3389: comment? 20 umin parsed place upcase parsed count 3390: 2dup s" [IF]" compare 0= >r 3391: 2dup s" [IFUNDEF]" compare 0= >r 3392: 2dup s" [IFDEF]" compare 0= r> or r> or 3393: IF 2drop 1+ 3394: ELSE 2dup s" [ELSE]" compare 0= 3395: IF 2drop 1- dup 3396: IF 1+ 3397: THEN 3398: ELSE 3399: 2dup s" [ENDIF]" compare 0= >r 3400: s" [THEN]" compare 0= r> or 3401: IF 1- THEN 3402: THEN 3403: THEN 3404: ?dup 0= ?EXIT 3405: REPEAT 3406: 2drop refill 0= 3407: UNTIL drop ; immediate 3408: 3409: : [THEN] ( -- ) ; immediate 3410: 3411: : [ENDIF] ( -- ) ; immediate 3412: 3413: : [IF] ( flag -- ) 3414: 0= IF postpone [ELSE] THEN ; immediate 3415: 3416: Cond: [IF] postpone [IF] ;Cond 3417: Cond: [THEN] postpone [THEN] ;Cond 3418: Cond: [ELSE] postpone [ELSE] ;Cond 3419: 3420: \ define new [IFDEF] and [IFUNDEF] 20may93jaw 3421: 3422: : defined? tdefined? ; 3423: : needed? needed? ; 3424: : doer? doer? ; 3425: 3426: \ we want to use IFDEF on compiler directives (e.g. E?) in the source, too 3427: 3428: : directive? 3429: bl word count [ ' target >wordlist ] literal search-wordlist 3430: dup IF nip THEN ; 3431: 3432: : [IFDEF] >in @ directive? swap >in ! 3433: 0= IF tdefined? ELSE name 2drop true THEN 3434: postpone [IF] ; 3435: 3436: : [IFUNDEF] tdefined? 0= postpone [IF] ; 3437: 3438: Cond: [IFDEF] postpone [IFDEF] ;Cond 3439: 3440: Cond: [IFUNDEF] postpone [IFUNDEF] ;Cond 3441: 3442: \ C: \- \+ Conditional Compiling 09jun93jaw 3443: 3444: : C: >in @ tdefined? 0= 3445: IF >in ! X : 3446: ELSE drop 3447: BEGIN bl word dup c@ 3448: IF count comment? s" ;" compare 0= ?EXIT 3449: ELSE refill 0= ABORT" CROSS: Out of Input while C:" 3450: THEN 3451: AGAIN 3452: THEN ; 3453: 3454: : d? d? ; 3455: 3456: \G doesn't skip line when debug switch is on 3457: : \D D? 0= IF postpone \ THEN ; 3458: 3459: \G interprets the line if word is not defined 3460: : \- tdefined? IF postpone \ THEN ; 3461: 3462: \G interprets the line if word is defined 3463: : \+ tdefined? 0= IF postpone \ THEN ; 3464: 3465: Cond: \- \- ;Cond 3466: Cond: \+ \+ ;Cond 3467: Cond: \D \D ;Cond 3468: 3469: : ?? bl word find IF execute ELSE drop 0 THEN ; 3470: 3471: : needed: 3472: \G defines ghost for words that we want to be compiled 3473: BEGIN >in @ bl word c@ WHILE >in ! Ghost drop REPEAT drop ; 3474: 3475: \ words that should be in minimal 3476: 3477: create s-buffer 50 chars allot 3478: 3479: bigendian Constant bigendian 3480: 3481: : here there ; 3482: : equ constant ; 3483: : mark there constant ; 3484: 3485: \ compiler directives 3486: : >ram >ram ; 3487: : >rom >rom ; 3488: : >auto >auto ; 3489: : >tempdp >tempdp ; 3490: : tempdp> tempdp> ; 3491: : const constflag on ; 3492: 3493: : Redefinitions-start 3494: \G Starts a redefinition section. Warnings are disabled and 3495: \G existing ghosts are reused. This is used in the kernel 3496: \G where ( and \ and the like are redefined 3497: twarnings off warnings off reuse-ghosts on ; 3498: 3499: : Redefinitions-end 3500: \G Ends a redefinition section. Warnings are enabled again. 3501: twarnings on warnings on reuse-ghosts off ; 3502: 3503: : warnings name 3 = 3504: IF twarnings off warnings off ELSE twarnings on warnings on THEN drop ; 3505: 3506: : | ; 3507: \ : | NoHeaderFlag on ; \ This is broken (damages the last word) 3508: 3509: : save-cross save-cross ; 3510: : save-region save-region ; 3511: : tdump swap >image swap dump ; 3512: 3513: also forth 3514: [IFDEF] Label : Label defempty? Label ; [THEN] 3515: [IFDEF] start-macros : start-macros defempty? start-macros ; [THEN] 3516: \ [IFDEF] builttag : builttag builttag ; [THEN] 3517: previous 3518: 3519: : s" [char] " parse s-buffer place s-buffer count ; \ for environment? 3520: : + + ; 3521: : 1+ 1 + ; 3522: : 2+ 2 + ; 3523: : 1- 1- ; 3524: : - - ; 3525: : and and ; 3526: : or or ; 3527: : 2* 2* ; 3528: : * * ; 3529: : / / ; 3530: : dup dup ; 3531: : over over ; 3532: : swap swap ; 3533: : rot rot ; 3534: : drop drop ; 3535: : = = ; 3536: : 0= 0= ; 3537: : lshift lshift ; 3538: : 2/ 2/ ; 3539: \ : . . ; 3540: 3541: : all-words ['] forced? IS skip? ; 3542: : needed-words ['] needed? IS skip? ; 3543: : undef-words ['] defined2? IS skip? ; 3544: : skipdef skipdef ; 3545: 3546: : \ postpone \ ; immediate 3547: : \G T-\G ; immediate 3548: : ( postpone ( ; immediate 3549: : include bl word count included ; 3550: : included swap >image swap included ; 3551: : require require ; 3552: : needs require ; 3553: : .( [char] ) parse type ; 3554: : ." [char] " parse type ; 3555: : cr cr ; 3556: 3557: : times 0 ?DO dup X c, LOOP drop ; \ used for space table creation 3558: 3559: \ only forth also cross also minimal definitions order 3560: 3561: \ cross-compiler words 3562: 3563: : decimal decimal [g'] decimal >exec2 @ ?dup IF EXECUTE THEN ; 3564: : hex hex [g'] hex >exec2 @ ?dup IF EXECUTE THEN ; 3565: 3566: \ : tudp X tudp ; 3567: \ : tup X tup ; 3568: 3569: : doc-off false to-doc ! ; 3570: : doc-on true to-doc ! ; 3571: 3572: : declareunique ( "name" -- ) 3573: \G Sets the unique flag for a ghost. The assembler output 3574: \G generates labels with the ghostname concatenated with the address 3575: \G while cross-compiling. The address is concatenated 3576: \G because we have double occurences of the same name. 3577: \G If we want to reference the labels from the assembler or C 3578: \G code we declare them unique, so the address is skipped. 3579: Ghost >ghost-flags dup @ <unique> or swap ! ; 3580: 3581: \ [IFDEF] dbg : dbg dbg ; [THEN] 3582: 3583: \ for debugging... 3584: \ : dbg dbg ; 3585: : horder order ; 3586: : hwords words ; 3587: \ : words also ghosts 3588: \ words previous ; 3589: : .s .s ; 3590: : bye bye ; 3591: 3592: \ dummy 3593: : group 0 word drop ; 3594: 3595: \ turnkey direction 3596: : H forth ; immediate 3597: : T minimal ; immediate 3598: : G ghosts ; immediate 3599: 3600: 3601: \ these ones are pefered: 3602: 3603: : unlock previous forth also cross ; 3604: 3605: \ also minimal 3606: >cross 3607: 3608: : turnkey 3609: ghosts-wordlist 1 set-order 3610: also target definitions 3611: also Minimal also ; 3612: 3613: >minimal 3614: 3615: : [[+++ 3616: turnkey unlock ; 3617: 3618: unlock definitions also minimal 3619: 3620: : lock turnkey ; 3621: 3622: Defer +++]]-hook 3623: : +++]] +++]]-hook lock ; 3624: 3625: LOCK 3626: \ load cross compiler extension defined in mach file 3627: 3628: UNLOCK >CROSS 3629: 3630: [IFDEF] extend-cross extend-cross [THEN] 3631: 3632: LOCK