gforth/cross.fs - view

File: [gforth] / gforth / cross.fs
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Sat Mar 4 22:45:07 2006 UTC (18 years, 1 month ago) by pazsan
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Beginning of a direct-flash Gforth

1: \ CROSS.FS The Cross-Compiler 06oct92py 2: \ Idea and implementation: Bernd Paysan (py) 3: 4: \ Copyright (C) 1995,1996,1997,1998,1999,2000,2003,2004,2005 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: 31: [THEN] 32: 33: s" compat/strcomp.fs" included 34: 35: hex 36: 37: \ debugging for compiling 38: 39: \ print stack at each colon definition 40: \ : : save-input cr bl word count type restore-input throw .s : ; 41: 42: \ print stack at each created word 43: \ : create save-input cr bl word count type restore-input throw .s create ; 44: 45: 46: \ \ ------------- Setup Vocabularies 47: 48: \ Remark: Vocabulary is not ANS, but it should work... 49: 50: Vocabulary Cross 51: Vocabulary Target 52: Vocabulary Ghosts 53: Vocabulary Minimal 54: only Forth also Target also also 55: definitions Forth 56: 57: : T previous Ghosts also Target ; immediate 58: : G Ghosts ; immediate 59: : H previous Forth also Cross ; immediate 60: 61: forth definitions 62: 63: : T previous Ghosts also Target ; immediate 64: : G Ghosts ; immediate 65: 66: 67: : >cross also Cross definitions previous ; 68: : >target also Target definitions previous ; 69: : >minimal also Minimal definitions previous ; 70: 71: H 72: 73: >CROSS 74: 75: \ Test against this definitions to find out whether we are cross-compiling 76: \ may be usefull for assemblers 77: 0 Constant gforth-cross-indicator 78: 79: \ find out whether we are compiling with gforth 80: 81: : defined? bl word find nip ; 82: defined? emit-file defined? toupper and \ drop 0 83: [IF] 84: \ use this in a gforth system 85: : \GFORTH ; immediate 86: : \ANSI postpone \ ; immediate 87: [ELSE] 88: : \GFORTH postpone \ ; immediate 89: : \ANSI ; immediate 90: [THEN] 91: 92: \ANSI : [IFUNDEF] defined? 0= postpone [IF] ; immediate 93: \ANSI : [IFDEF] defined? postpone [IF] ; immediate 94: 0 \ANSI drop 1 95: [IF] 96: : \G postpone \ ; immediate 97: : rdrop postpone r> postpone drop ; immediate 98: : name bl word count ; 99: : bounds over + swap ; 100: : scan >r BEGIN dup WHILE over c@ r@ <> WHILE 1 /string REPEAT THEN rdrop ; 101: : linked here over @ , swap ! ; 102: : alias create , DOES> @ EXECUTE ; 103: : defer ['] noop alias ; 104: : is state @ 105: IF ' >body postpone literal postpone ! 106: ELSE ' >body ! THEN ; immediate 107: : 0>= 0< 0= ; 108: : d<> rot <> -rot <> or ; 109: : toupper dup [char] a [char] z 1+ within IF [char] A [char] a - + THEN ; 110: Variable ebuf 111: : emit-file ( c fd -- ior ) swap ebuf c! ebuf 1 chars rot write-file ; 112: 0a Constant #lf 113: 0d Constant #cr 114: 115: [IFUNDEF] Warnings Variable Warnings [THEN] 116: 117: \ \ Number parsing 23feb93py 118: 119: \ number? number 23feb93py 120: 121: Variable dpl 122: 123: hex 124: Create bases 10 , 2 , A , 100 , 125: \ 16 2 10 character 126: 127: \ !! protect BASE saving wrapper against exceptions 128: : getbase ( addr u -- addr' u' ) 129: over c@ [char] $ - dup 4 u< 130: IF 131: cells bases + @ base ! 1 /string 132: ELSE 133: drop 134: THEN ; 135: 136: : sign? ( addr u -- addr u flag ) 137: over c@ [char] - = dup >r 138: IF 139: 1 /string 140: THEN 141: r> ; 142: 143: : s>unumber? ( addr u -- ud flag ) 144: over [char] ' = 145: IF \ a ' alone is rather unusual :-) 146: drop char+ c@ 0 true EXIT 147: THEN 148: base @ >r dpl on getbase 149: 0. 2swap 150: BEGIN ( d addr len ) 151: dup >r >number dup 152: WHILE \ there are characters left 153: dup r> - 154: WHILE \ the last >number parsed something 155: dup 1- dpl ! over c@ [char] . = 156: WHILE \ the current char is '.' 157: 1 /string 158: REPEAT THEN \ there are unparseable characters left 159: 2drop false 160: ELSE 161: rdrop 2drop true 162: THEN 163: r> base ! ; 164: 165: \ ouch, this is complicated; there must be a simpler way - anton 166: : s>number? ( addr len -- d f ) 167: \ converts string addr len into d, flag indicates success 168: sign? >r 169: s>unumber? 170: 0= IF 171: rdrop false 172: ELSE \ no characters left, all ok 173: r> 174: IF 175: dnegate 176: THEN 177: true 178: THEN ; 179: 180: : s>number ( addr len -- d ) 181: \ don't use this, there is no way to tell success 182: s>number? drop ; 183: 184: : snumber? ( c-addr u -- 0 / n -1 / d 0> ) 185: s>number? 0= 186: IF 187: 2drop false EXIT 188: THEN 189: dpl @ dup 0< IF 190: nip 191: ELSE 192: 1+ 193: THEN ; 194: 195: : number? ( string -- string 0 / n -1 / d 0> ) 196: dup >r count snumber? dup if 197: rdrop 198: else 199: r> swap 200: then ; 201: 202: : number ( string -- d ) 203: number? ?dup 0= abort" ?" 0< 204: IF 205: s>d 206: THEN ; 207: 208: [THEN] 209: 210: \ this provides assert( and struct stuff 211: \GFORTH [IFUNDEF] assert1( 212: \GFORTH also forth definitions require assert.fs previous 213: \GFORTH [THEN] 214: 215: >CROSS 216: 217: hex \ the defualt base for the cross-compiler is hex !! 218: \ Warnings off 219: 220: \ words that are generaly useful 221: 222: : KB 400 * ; 223: : >wordlist ( vocabulary-xt -- wordlist-struct ) 224: also execute get-order swap >r 1- set-order r> ; 225: 226: : umax 2dup u< IF swap THEN drop ; 227: : umin 2dup u> IF swap THEN drop ; 228: 229: : string, ( c-addr u -- ) 230: \ puts down string as cstring 231: dup c, here swap chars dup allot move ; 232: 233: : ," [char] " parse string, ; 234: 235: : SetValue ( n -- <name> ) 236: \G Same behaviour as "Value" if the <name> is not defined 237: \G Same behaviour as "to" if <name> is defined 238: \G SetValue searches in the current vocabulary 239: save-input bl word >r restore-input throw r> count 240: get-current search-wordlist 241: IF drop >r 242: \ we have to set current to be topmost context wordlist 243: get-order get-order get-current swap 1+ set-order 244: r> ['] to execute 245: set-order 246: ELSE Value THEN ; 247: 248: : DefaultValue ( n -- <name> ) 249: \G Same behaviour as "Value" if the <name> is not defined 250: \G DefaultValue searches in the current vocabulary 251: save-input bl word >r restore-input throw r> count 252: get-current search-wordlist 253: IF bl word drop 2drop ELSE Value THEN ; 254: 255: hex 256: 257: \ FIXME delete` 258: \ 1 Constant Cross-Flag \ to check whether assembler compiler plug-ins are 259: \ for cross-compiling 260: \ No! we use "[IFUNDEF]" there to find out whether we are target compiling!!! 261: 262: \ FIXME move down 263: : comment? ( c-addr u -- c-addr u ) 264: 2dup s" (" str= 265: IF postpone ( 266: ELSE 2dup s" \" str= IF postpone \ THEN 267: THEN ; 268: 269: : X ( -- <name> ) 270: \G The next word in the input is a target word. 271: \G Equivalent to T <name> but without permanent 272: \G switch to target dictionary. Used as prefix e.g. for @, !, here etc. 273: bl word count [ ' target >wordlist ] Literal search-wordlist 274: IF state @ IF compile, ELSE execute THEN 275: ELSE -1 ABORT" Cross: access method not supported!" 276: THEN ; immediate 277: 278: \ Begin CROSS COMPILER: 279: 280: \ debugging 281: 282: 0 [IF] 283: 284: This implements debugflags for the cross compiler and the compiled 285: images. It works identical to the has-flags in the environment. 286: The debugflags are defined in a vocabluary. If the word exists and 287: its value is true, the flag is switched on. 288: 289: [THEN] 290: 291: >CROSS 292: 293: Vocabulary debugflags \ debug flags for cross 294: also debugflags get-order over 295: Constant debugflags-wl 296: set-order previous 297: 298: : DebugFlag 299: get-current >r debugflags-wl set-current 300: SetValue 301: r> set-current ; 302: 303: : Debug? ( adr u -- flag ) 304: \G return true if debug flag is defined or switched on 305: debugflags-wl search-wordlist 306: IF EXECUTE 307: ELSE false THEN ; 308: 309: : D? ( <name> -- flag ) 310: \G return true if debug flag is defined or switched on 311: \G while compiling we do not return the current value but 312: bl word count debug? ; 313: 314: : [d?] 315: \G compile the value-xt so the debug flag can be switched 316: \G the flag must exist! 317: bl word count debugflags-wl search-wordlist 318: IF compile, 319: ELSE -1 ABORT" unknown debug flag" 320: \ POSTPONE false 321: THEN ; immediate 322: 323: : symentry ( adr len taddr -- ) 324: \G Produce a symbol table (an optional symbol address 325: \G map) if wanted 326: [ [IFDEF] fd-symbol-table ] 327: base @ swap hex s>d <# 8 0 DO # LOOP #> fd-symbol-table write-file throw base ! 328: s" :" fd-symbol-table write-file throw 329: fd-symbol-table write-line throw 330: [ [ELSE] ] 331: 2drop drop 332: [ [THEN] ] ; 333: 334: 335: \ \ -------------------- source file 336: 337: decimal 338: 339: Variable cross-file-list 340: 0 cross-file-list ! 341: Variable target-file-list 342: 0 target-file-list ! 343: Variable host-file-list 344: 0 host-file-list ! 345: 346: cross-file-list Value file-list 347: 0 Value source-desc 348: 349: \ file loading 350: 351: : >fl-id 1 cells + ; 352: : >fl-name 2 cells + ; 353: 354: Variable filelist 0 filelist ! 355: Create NoFile ," #load-file#" 356: 357: : loadfile ( -- adr ) 358: source-desc ?dup IF >fl-name ELSE NoFile THEN ; 359: 360: : sourcefilename ( -- adr len ) 361: loadfile count ; 362: 363: \ANSI : sourceline# 0 ; 364: 365: \ \ -------------------- path handling from kernel/paths.fs 366: 367: \ paths.fs path file handling 03may97jaw 368: 369: \ -Changing the search-path: 370: \ fpath+ <path> adds a directory to the searchpath 371: \ fpath= <path>|<path> makes complete now searchpath 372: \ seperator is | 373: \ .fpath displays the search path 374: \ remark I: 375: \ a ./ in the beginning of filename is expanded to the directory the 376: \ current file comes from. ./ can also be included in the search-path! 377: \ ~+/ loads from the current working directory 378: 379: \ remark II: 380: \ if there is no sufficient space for the search path increase it! 381: 382: 383: \ -Creating custom paths: 384: 385: \ It is possible to use the search mechanism on yourself. 386: 387: \ Make a buffer for the path: 388: \ create mypath 100 chars , \ maximum length (is checked) 389: \ 0 , \ real len 390: \ 100 chars allot \ space for path 391: \ use the same functions as above with: 392: \ mypath path+ 393: \ mypath path= 394: \ mypath .path 395: 396: \ do a open with the search path: 397: \ open-path-file ( adr len path -- fd adr len ior ) 398: \ the file is opened read-only; if the file is not found an error is generated 399: 400: \ questions to: wilke@jwdt.com 401: 402: [IFUNDEF] +place 403: : +place ( adr len adr ) 404: 2dup >r >r 405: dup c@ char+ + swap move 406: r> r> dup c@ rot + swap c! ; 407: [THEN] 408: 409: [IFUNDEF] place 410: : place ( c-addr1 u c-addr2 ) 411: 2dup c! char+ swap move ; 412: [THEN] 413: 414: \ if we have path handling, use this and the setup of it 415: [IFUNDEF] open-fpath-file 416: 417: create sourcepath 1024 chars , 0 , 1024 chars allot \ !! make this dynamic 418: sourcepath value fpath 419: 420: : also-path ( adr len path^ -- ) 421: >r 422: \ len check 423: r@ cell+ @ over + r@ @ u> ABORT" path buffer too small!" 424: \ copy into 425: tuck r@ cell+ dup @ cell+ + swap cmove 426: \ make delimiter 427: 0 r@ cell+ dup @ cell+ + 2 pick + c! 1 + r> cell+ +! 428: ; 429: 430: : only-path ( adr len path^ -- ) 431: dup 0 swap cell+ ! also-path ; 432: 433: : path+ ( path-addr "dir" -- ) \ gforth 434: \G Add the directory @var{dir} to the search path @var{path-addr}. 435: name rot also-path ; 436: 437: : fpath+ ( "dir" ) \ gforth 438: \G Add directory @var{dir} to the Forth search path. 439: fpath path+ ; 440: 441: : path= ( path-addr "dir1|dir2|dir3" ) \ gforth 442: \G Make a complete new search path; the path separator is |. 443: name 2dup bounds ?DO i c@ [char] | = IF 0 i c! THEN LOOP 444: rot only-path ; 445: 446: : fpath= ( "dir1|dir2|dir3" ) \ gforth 447: \G Make a complete new Forth search path; the path separator is |. 448: fpath path= ; 449: 450: : path>string cell+ dup cell+ swap @ ; 451: 452: : next-path ( adr len -- adr2 len2 ) 453: 2dup 0 scan 454: dup 0= IF 2drop 0 -rot 0 -rot EXIT THEN 455: >r 1+ -rot r@ 1- -rot 456: r> - ; 457: 458: : previous-path ( path^ -- ) 459: dup path>string 460: BEGIN tuck dup WHILE repeat ; 461: 462: : .path ( path-addr -- ) \ gforth 463: \G Display the contents of the search path @var{path-addr}. 464: path>string 465: BEGIN next-path dup WHILE type space REPEAT 2drop 2drop ; 466: 467: : .fpath ( -- ) \ gforth 468: \G Display the contents of the Forth search path. 469: fpath .path ; 470: 471: : absolut-path? ( addr u -- flag ) \ gforth 472: \G A path is absolute if it starts with a / or a ~ (~ expansion), 473: \G or if it is in the form ./*, extended regexp: ^[/~]|./, or if 474: \G it has a colon as second character ("C:..."). Paths simply 475: \G containing a / are not absolute! 476: 2dup 2 u> swap 1+ c@ [char] : = and >r \ dos absoulte: c:/.... 477: over c@ [char] / = >r 478: over c@ [char] ~ = >r 479: \ 2dup S" ../" string-prefix? r> or >r \ not catered for in expandtopic 480: S" ./" string-prefix? 481: r> r> r> or or or ; 482: 483: Create ofile 0 c, 255 chars allot 484: Create tfile 0 c, 255 chars allot 485: 486: : pathsep? dup [char] / = swap [char] \ = or ; 487: 488: : need/ ofile dup c@ + c@ pathsep? 0= IF s" /" ofile +place THEN ; 489: 490: : extractpath ( adr len -- adr len2 ) 491: BEGIN dup WHILE 1- 492: 2dup + c@ pathsep? IF EXIT THEN 493: REPEAT ; 494: 495: : remove~+ ( -- ) 496: ofile count s" ~+/" string-prefix? 497: IF 498: ofile count 3 /string ofile place 499: THEN ; 500: 501: : expandtopic ( -- ) \ stack effect correct? - anton 502: \ expands "./" into an absolute name 503: ofile count s" ./" string-prefix? 504: IF 505: ofile count 1 /string tfile place 506: 0 ofile c! sourcefilename extractpath ofile place 507: ofile c@ IF need/ THEN 508: tfile count over c@ pathsep? IF 1 /string THEN 509: ofile +place 510: THEN ; 511: 512: : compact.. ( adr len -- adr2 len2 ) 513: \ deletes phrases like "xy/.." out of our directory name 2dec97jaw 514: over swap 515: BEGIN dup WHILE 516: dup >r '/ scan 2dup s" /../" string-prefix? 517: IF 518: dup r> - >r 4 /string over r> + 4 - 519: swap 2dup + >r move dup r> over - 520: ELSE 521: rdrop dup 1 min /string 522: THEN 523: REPEAT drop over - ; 524: 525: : reworkdir ( -- ) 526: remove~+ 527: ofile count compact.. 528: nip ofile c! ; 529: 530: : open-ofile ( -- fid ior ) 531: \G opens the file whose name is in ofile 532: expandtopic reworkdir 533: ofile count r/o open-file ; 534: 535: : check-path ( adr1 len1 adr2 len2 -- fd 0 | 0 <>0 ) 536: 0 ofile ! >r >r ofile place need/ 537: r> r> ofile +place 538: open-ofile ; 539: 540: : open-path-file ( addr1 u1 path-addr -- wfileid addr2 u2 0 | ior ) \ gforth 541: \G Look in path @var{path-addr} 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: >r 545: 2dup absolut-path? 546: IF rdrop 547: ofile place open-ofile 548: dup 0= IF >r ofile count r> THEN EXIT 549: ELSE r> path>string 550: BEGIN next-path dup 551: WHILE 5 pick 5 pick check-path 552: 0= IF >r 2drop 2drop r> ofile count 0 EXIT ELSE drop THEN 553: REPEAT 554: 2drop 2drop 2drop -38 555: THEN ; 556: 557: : open-fpath-file ( addr1 u1 -- wfileid addr2 u2 0 | ior ) \ gforth 558: \G Look in the Forth search path for the file specified by @var{addr1 u1}. 559: \G If found, the resulting path and an open file descriptor 560: \G are returned. If the file is not found, @var{ior} is non-zero. 561: fpath open-path-file ; 562: 563: fpath= ~+ 564: 565: [THEN] 566: 567: \ \ -------------------- include require 13may99jaw 568: 569: >CROSS 570: 571: : add-included-file ( adr len -- adr ) 572: dup >fl-name char+ allocate throw >r 573: file-list @ r@ ! r@ file-list ! 574: r@ >fl-name place r> ; 575: 576: : included? ( c-addr u -- f ) 577: file-list 578: BEGIN @ dup 579: WHILE >r 2dup r@ >fl-name count str= 580: IF rdrop 2drop true EXIT THEN 581: r> 582: REPEAT 583: 2drop drop false ; 584: 585: false DebugFlag showincludedfiles 586: 587: : included1 ( fd adr u -- ) 588: \ include file adr u / fd 589: \ we don't use fd with include-file, because the forth system 590: \ doesn't know the name of the file to get a nice error report 591: [d?] showincludedfiles 592: IF cr ." Including: " 2dup type ." ..." THEN 593: rot close-file throw 594: source-desc >r 595: add-included-file to source-desc 596: sourcefilename 597: ['] included catch 598: r> to source-desc 599: throw ; 600: 601: : included ( adr len -- ) 602: cross-file-list to file-list 603: open-fpath-file throw 604: included1 ; 605: 606: : required ( adr len -- ) 607: cross-file-list to file-list 608: open-fpath-file throw \ 2dup cr ." R:" type 609: 2dup included? 610: IF 2drop close-file throw 611: ELSE included1 612: THEN ; 613: 614: : include bl word count included ; 615: 616: : require bl word count required ; 617: 618: 0 [IF] 619: 620: also forth definitions previous 621: 622: : included ( adr len -- ) included ; 623: 624: : required ( adr len -- ) required ; 625: 626: : include include ; 627: 628: : require require ; 629: 630: [THEN] 631: 632: >CROSS 633: hex 634: 635: \ \ -------------------- Error Handling 05aug97jaw 636: 637: \ Flags 638: 639: also forth definitions \ these values may be predefined before 640: \ the cross-compiler is loaded 641: 642: false DefaultValue stack-warn \ check on empty stack at any definition 643: false DefaultValue create-forward-warn \ warn on forward declaration of created words 644: 645: previous >CROSS 646: 647: : .dec 648: base @ decimal swap . base ! ; 649: 650: : .sourcepos 651: cr sourcefilename type ." :" 652: sourceline# .dec ; 653: 654: : warnhead 655: \G display error-message head 656: \G perhaps with linenumber and filename 657: .sourcepos ." Warning: " ; 658: 659: : empty? depth IF .sourcepos ." Stack not empty!" THEN ; 660: 661: stack-warn [IF] 662: : defempty? empty? ; 663: [ELSE] 664: : defempty? ; immediate 665: \ : defempty? .sourcepos ; 666: [THEN] 667: 668: \ \ -------------------- Compiler Plug Ins 01aug97jaw 669: 670: >CROSS 671: 672: \ Compiler States 673: 674: Variable comp-state 675: 0 Constant interpreting 676: 1 Constant compiling 677: 2 Constant resolving 678: 3 Constant assembling 679: 680: : compiling? comp-state @ compiling = ; 681: 682: : pi-undefined -1 ABORT" Plugin undefined" ; 683: 684: : Plugin ( -- : pluginname ) 685: Create 686: \ for normal cross-compiling only one action 687: \ exists, this fields are identical. For the instant 688: \ simulation environment we need, two actions for each plugin 689: \ the target one and the one that generates the simulation code 690: ['] pi-undefined , \ action 691: ['] pi-undefined , \ target plugin action 692: 8765 , \ plugin magic 693: DOES> perform ; 694: 695: Plugin DummyPlugin 696: 697: : 'PI ( -- addr : pluginname ) 698: ' >body dup 2 cells + @ 8765 <> ABORT" not a plugin" ; 699: 700: : plugin-of ( xt -- : pluginname ) 701: dup 'PI 2! ; 702: 703: : action-of ( xt -- : plunginname ) 704: 'PI cell+ ! ; 705: 706: : TPA ( -- : plugin ) 707: \ target plugin action 708: \ executes current target action of plugin 709: 'PI cell+ POSTPONE literal POSTPONE perform ; immediate 710: 711: Variable ppi-temp 0 ppi-temp ! 712: 713: : pa: 714: \g define plugin action 715: ppi-temp @ ABORT" pa: definition not closed" 716: 'PI ppi-temp ! :noname ; 717: 718: : ;pa 719: \g end a definition for plugin action 720: POSTPONE ; ppi-temp @ ! 0 ppi-temp ! ; immediate 721: 722: 723: Plugin dlit, ( d -- ) \ compile numerical value the target 724: Plugin lit, ( n -- ) 725: Plugin alit, ( n -- ) 726: 727: Plugin branch, ( target-addr -- ) \ compiles a branch 728: Plugin ?branch, ( target-addr -- ) \ compiles a ?branch 729: Plugin branchmark, ( -- branch-addr ) \ reserves room for a branch 730: Plugin ?branchmark, ( -- branch-addr ) \ reserves room for a ?branch 731: Plugin ?domark, ( -- branch-addr ) \ reserves room for a ?do branch 732: Plugin branchto, ( -- ) \ actual program position is target of a branch (do e.g. alignment) 733: ' NOOP plugin-of branchto, 734: Plugin branchtoresolve, ( branch-addr -- ) \ resolves a forward reference from branchmark 735: Plugin branchtomark, ( -- target-addr ) \ marks a branch destination 736: 737: Plugin colon, ( tcfa -- ) \ compiles call to tcfa at current position 738: Plugin prim, ( tcfa -- ) \ compiles primitive invocation 739: Plugin colonmark, ( -- addr ) \ marks a colon call 740: Plugin colon-resolve ( tcfa addr -- ) 741: 742: Plugin addr-resolve ( target-addr addr -- ) 743: Plugin doer-resolve ( ghost res-pnt target-addr addr -- ghost res-pnt ) 744: 745: Plugin ncontrols? ( [ xn ... x1 ] n -- ) \ checks wheter n control structures are open 746: Plugin if, ( -- if-token ) 747: Plugin else, ( if-token -- if-token ) 748: Plugin then, ( if-token -- ) 749: Plugin ahead, 750: Plugin begin, 751: Plugin while, 752: Plugin until, 753: Plugin again, 754: Plugin repeat, 755: Plugin cs-swap ( x1 x2 -- x2 x1 ) 756: 757: Plugin case, ( -- n ) 758: Plugin of, ( n -- x1 n ) 759: Plugin endof, ( x1 n -- x2 n ) 760: Plugin endcase, ( x1 .. xn n -- ) 761: 762: Plugin do, ( -- do-token ) 763: Plugin ?do, ( -- ?do-token ) 764: Plugin for, ( -- for-token ) 765: Plugin loop, ( do-token / ?do-token -- ) 766: Plugin +loop, ( do-token / ?do-token -- ) 767: Plugin next, ( for-token ) 768: Plugin leave, ( -- ) 769: Plugin ?leave, ( -- ) 770: 771: Plugin ca>native \ Convert a code address to the processors 772: \ native address. This is used in doprim, and 773: \ code/code: primitive definitions word to 774: \ convert the addresses. 775: \ The only target where we need this is the misc 776: \ which is a 16 Bit processor with word addresses 777: \ but the forth system we build has a normal byte 778: \ addressed memory model 779: 780: Plugin doprim, \ compiles start of a primitive 781: Plugin docol, \ compiles start of a colon definition 782: Plugin doer, 783: Plugin fini, \ compiles end of definition ;s 784: Plugin doeshandler, 785: Plugin dodoes, 786: 787: Plugin colon-start 788: ' noop plugin-of colon-start 789: Plugin colon-end 790: ' noop plugin-of colon-end 791: 792: Plugin ]comp \ starts compilation 793: ' noop plugin-of ]comp 794: Plugin comp[ \ ends compilation 795: ' noop plugin-of comp[ 796: 797: Plugin t>body \ we need the system >body 798: \ and the target >body 799: 800: >TARGET 801: : >body t>body ; 802: 803: 804: \ Ghost Builder 06oct92py 805: 806: >CROSS 807: hex 808: \ Values for ghost magic 809: 4711 Constant <fwd> 4712 Constant <res> 810: 4713 Constant <imm> 4714 Constant <do:> 811: 4715 Constant <skip> 812: 813: \ Bitmask for ghost flags 814: 1 Constant <unique> 815: 2 Constant <primitive> 816: 817: \ FXIME: move this to general stuff? 818: : set-flag ( addr flag -- ) 819: over @ or swap ! ; 820: 821: : reset-flag ( addr flag -- ) 822: invert over @ and swap ! ; 823: 824: : get-flag ( addr flag -- f ) 825: swap @ and 0<> ; 826: 827: 828: Struct 829: 830: \ link to next ghost (always the first element) 831: cell% field >next-ghost 832: 833: \ type of ghost 834: cell% field >magic 835: 836: \ pointer where ghost is in target, or if unresolved 837: \ points to the where we have to resolve (linked-list) 838: cell% field >link 839: 840: \ execution semantics (while target compiling) of ghost 841: cell% field >exec 842: 843: \ compilation action of this ghost; this is what is 844: \ done to compile a call (or whatever) to this definition. 845: \ E.g. >comp contains the semantic of postpone s" 846: \ whereas >exec-compile contains the semantic of s" 847: cell% field >comp 848: 849: \ Compilation sematics (while parsing) of this ghost. E.g. 850: \ "\" will skip the rest of line. 851: \ These semantics are defined by Cond: and 852: \ if a word is made immediate in instant, then the >exec2 field 853: \ gets copied to here 854: cell% field >exec-compile 855: 856: \ Additional execution semantics of this ghost. This is used 857: \ for code generated by instant and for the doer-xt of created 858: \ words 859: cell% field >exec2 860: 861: cell% field >created 862: 863: \ the xt of the created ghost word itself 864: cell% field >ghost-xt 865: 866: \ pointer to the counted string of the assiciated 867: \ assembler label 868: cell% field >asm-name 869: 870: \ mapped primitives have a special address, so 871: \ we are able to detect them 872: cell% field >asm-dummyaddr 873: 874: \ for builder (create, variable...) words 875: \ the execution symantics of words built are placed here 876: \ this is a doer ghost or a dummy ghost 877: cell% field >do:ghost 878: 879: cell% field >ghost-flags 880: 881: cell% field >ghost-name 882: 883: End-Struct ghost-struct 884: 885: Variable ghost-list 886: 0 ghost-list ! 887: 888: Variable executed-ghost \ last executed ghost, needed in tcreate and gdoes> 889: \ Variable last-ghost \ last ghost that is created 890: Variable last-header-ghost \ last ghost definitions with header 891: 892: \ space for ghosts resolve structure 893: \ we create ghosts in a sepearte space 894: \ and not to the current host dp, because this 895: \ gives trouble with instant while compiling and creating 896: \ a ghost for a forward reference 897: \ BTW: we cannot allocate another memory region 898: \ because allot will check the overflow!! 899: Variable cross-space-dp 900: Create cross-space 250000 allot here 100 allot align 901: Constant cross-space-end 902: cross-space cross-space-dp ! 903: Variable cross-space-dp-orig 904: 905: : cross-space-used cross-space-dp @ cross-space - ; 906: 907: : >space ( -- ) 908: dp @ cross-space-dp-orig ! 909: cross-space-dp @ dp ! ; 910: 911: : space> ( -- ) 912: dp @ dup cross-space-dp ! 913: cross-space-end u> ABORT" CROSS: cross-space overflow" 914: cross-space-dp-orig @ dp ! ; 915: 916: \ this is just for debugging, to see this in the backtrace 917: : execute-exec execute ; 918: : execute-exec2 execute ; 919: : execute-exec-compile execute ; 920: 921: : NoExec 922: executed-ghost @ >exec2 @ 923: ?dup 924: IF execute-exec2 925: ELSE true ABORT" CROSS: Don't execute ghost, or immediate target word" 926: THEN ; 927: 928: Defer is-forward 929: 930: : (ghostheader) ( -- ) 931: ghost-list linked <fwd> , 0 , ['] NoExec , ['] is-forward , 932: 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , ; 933: 934: : ghostheader ( -- ) (ghostheader) 0 , ; 935: 936: ' Ghosts >wordlist Constant ghosts-wordlist 937: 938: \ the current wordlist for ghost definitions in the host 939: ghosts-wordlist Value current-ghosts 940: 941: : Make-Ghost ( "name" -- ghost ) 942: >space 943: \ save current and create in ghost vocabulary 944: get-current >r current-ghosts set-current 945: >in @ Create >in ! 946: \ some forth systems like iForth need the immediate directly 947: \ after the word is created 948: \ restore current 949: r> set-current 950: here (ghostheader) 951: bl word count string, align 952: space> 953: \ set ghost-xt field by doing a search 954: dup >ghost-name count 955: current-ghosts search-wordlist 956: 0= ABORT" CROSS: Just created, must be there!" 957: over >ghost-xt ! 958: DOES> 959: dup executed-ghost ! 960: >exec @ execute-exec ; 961: 962: \ ghost words 14oct92py 963: \ changed: 10may93py/jaw 964: 965: Defer search-ghosts 966: 967: : (search-ghosts) ( adr len -- cfa true | 0 ) 968: current-ghosts search-wordlist ; 969: 970: ' (search-ghosts) IS search-ghosts 971: 972: : gsearch ( addr len -- ghost true | 0 ) 973: search-ghosts 974: dup IF swap >body swap THEN ; 975: 976: : gfind ( string -- ghost true / string false ) 977: \ searches for string in word-list ghosts 978: \ dup count type space 979: dup >r count gsearch 980: dup IF rdrop ELSE r> swap THEN ; 981: 982: : gdiscover ( xt -- ghost true | xt false ) 983: >r ghost-list 984: BEGIN @ dup 985: WHILE dup >magic @ <fwd> <> 986: IF dup >link @ r@ = 987: IF rdrop true EXIT THEN 988: THEN 989: REPEAT 990: drop r> false ; 991: 992: : xt>ghost ( xt -- ghost ) 993: gdiscover 0= ABORT" CROSS: ghost not found for this xt" ; 994: 995: : Ghost ( "name" -- ghost ) 996: >in @ bl word gfind IF nip EXIT THEN 997: drop >in ! Make-Ghost ; 998: 999: : >ghostname ( ghost -- adr len ) 1000: >ghost-name count ; 1001: 1002: : forward? ( ghost -- flag ) 1003: >magic @ <fwd> = ; 1004: 1005: : undefined? ( ghost -- flag ) 1006: >magic @ dup <fwd> = swap <skip> = or ; 1007: 1008: : immediate? ( ghost -- flag ) 1009: >magic @ <imm> = ; 1010: 1011: Variable TWarnings 1012: TWarnings on 1013: Variable Exists-Warnings 1014: Exists-Warnings on 1015: 1016: : exists-warning ( ghost -- ghost ) 1017: TWarnings @ Exists-Warnings @ and 1018: IF dup >ghostname warnhead type ." exists " THEN ; 1019: 1020: \ : HeaderGhost Ghost ; 1021: 1022: Variable reuse-ghosts reuse-ghosts off 1023: 1024: : HeaderGhost ( "name" -- ghost ) 1025: >in @ 1026: bl word count 1027: \ 2dup type space 1028: current-ghosts search-wordlist 1029: IF >body dup undefined? reuse-ghosts @ or 1030: IF nip EXIT 1031: ELSE exists-warning 1032: THEN 1033: drop >in ! 1034: ELSE >in ! 1035: THEN 1036: \ we keep the execution semantics of the prviously 1037: \ defined words, this is a workaround 1038: \ for the redefined \ until vocs work 1039: Make-Ghost ; 1040: 1041: : .ghost ( ghost -- ) >ghostname type ; 1042: 1043: \ ' >ghostname ALIAS @name 1044: 1045: : findghost ( "ghostname" -- ghost ) 1046: bl word gfind 0= ABORT" CROSS: Ghost don't exists" ; 1047: 1048: : [G'] ( -- ghost : name ) 1049: \G ticks a ghost and returns its address 1050: findghost 1051: state @ IF postpone literal THEN ; immediate 1052: 1053: : g>xt ( ghost -- xt ) 1054: \G Returns the xt (cfa) of a ghost. Issues a warning if undefined. 1055: dup undefined? ABORT" CROSS: forward " >link @ ; 1056: 1057: : g>body ( ghost -- body ) 1058: \G Returns the body-address (pfa) of a ghost. 1059: \G Issues a warning if undefined (a forward-reference). 1060: g>xt X >body ; 1061: 1062: 1 Constant <label> 1063: 1064: Struct 1065: \ bitmask of address type (not used for now) 1066: cell% field addr-type 1067: \ if this address is an xt, this field points to the ghost 1068: cell% field addr-xt-ghost 1069: \ a bit mask that tells as what part of the cell 1070: \ is refenced from an address pointer, used for assembler generation 1071: cell% field addr-refs 1072: End-Struct addr-struct 1073: 1074: : %allocerase ( align size -- addr ) 1075: dup >r %alloc dup r> erase ; 1076: 1077: \ returns the addr struct, define it if 0 reference 1078: : define-addr-struct ( addr -- struct-addr ) 1079: dup @ ?dup IF nip EXIT THEN 1080: addr-struct %allocerase tuck swap ! ; 1081: 1082: >cross 1083: 1084: \ Predefined ghosts 12dec92py 1085: 1086: Ghost - drop \ need a ghost otherwise "-" would be treated as a number 1087: 1088: Ghost 0= drop 1089: Ghost branch Ghost ?branch 2drop 1090: Ghost unloop Ghost ;S 2drop 1091: Ghost lit Ghost ! 2drop 1092: Ghost noop drop 1093: Ghost over Ghost = Ghost drop 2drop drop 1094: Ghost 2drop drop 1095: Ghost 2dup drop 1096: Ghost call drop 1097: Ghost @ drop 1098: Ghost useraddr drop 1099: Ghost execute drop 1100: Ghost + drop 1101: Ghost decimal drop 1102: Ghost hex drop 1103: Ghost lit@ drop 1104: Ghost lit-perform drop 1105: Ghost lit+ drop 1106: Ghost does-exec drop 1107: 1108: Ghost :docol Ghost :doesjump Ghost :dodoes 2drop drop 1109: Ghost :dovar drop 1110: 1111: \ \ Parameter for target systems 06oct92py 1112: 1113: 1114: \ we define it ans like... 1115: wordlist Constant target-environment 1116: 1117: \ save information of current dictionary to restore with environ> 1118: Variable env-current 1119: 1120: : >ENVIRON get-current env-current ! target-environment set-current ; 1121: : ENVIRON> env-current @ set-current ; 1122: 1123: >TARGET 1124: 1125: : environment? ( addr len -- [ x ] true | false ) 1126: \G returns the content of environment variable and true or 1127: \G false if not present 1128: target-environment search-wordlist 1129: IF EXECUTE true ELSE false THEN ; 1130: 1131: : $has? ( addr len -- x | false ) 1132: \G returns the content of environment variable 1133: \G or false if not present 1134: T environment? H dup IF drop THEN ; 1135: 1136: : e? ( "name" -- x ) 1137: \G returns the content of environment variable. 1138: \G The variable is expected to exist. If not, issue an error. 1139: bl word count T environment? H 1140: 0= ABORT" environment variable not defined!" ; 1141: 1142: : has? ( "name" --- x | false ) 1143: \G returns the content of environment variable 1144: \G or false if not present 1145: bl word count T $has? H ; 1146: 1147: 1148: >ENVIRON get-order get-current swap 1+ set-order 1149: true SetValue compiler 1150: true SetValue cross 1151: true SetValue standard-threading 1152: >TARGET previous 1153: 1154: 0 1155: [IFDEF] mach-file drop mach-file count 1 [THEN] 1156: [IFDEF] machine-file drop machine-file 1 [THEN] 1157: [IF] included hex 1158: [ELSE] cr ." No machine description!" ABORT 1159: [THEN] 1160: 1161: >ENVIRON 1162: 1163: T has? ec H 1164: [IF] 1165: false DefaultValue relocate 1166: false DefaultValue file 1167: false DefaultValue OS 1168: false DefaultValue prims 1169: false DefaultValue floating 1170: false DefaultValue glocals 1171: false DefaultValue dcomps 1172: false DefaultValue hash 1173: false DefaultValue xconds 1174: false DefaultValue header 1175: false DefaultValue backtrace 1176: false DefaultValue new-input 1177: false DefaultValue peephole 1178: false DefaultValue abranch 1179: true DefaultValue f83headerstring 1180: true DefaultValue control-rack 1181: [THEN] 1182: 1183: true DefaultValue gforthcross 1184: true DefaultValue interpreter 1185: true DefaultValue ITC 1186: false DefaultValue rom 1187: true DefaultValue standardthreading 1188: 1189: \ ANSForth environment stuff 1190: 8 DefaultValue ADDRESS-UNIT-BITS 1191: 255 DefaultValue MAX-CHAR 1192: 255 DefaultValue /COUNTED-STRING 1193: 1194: >TARGET 1195: s" relocate" T environment? H 1196: \ JAW why set NIL to this?! 1197: [IF] drop \ SetValue NIL 1198: [ELSE] >ENVIRON X NIL SetValue relocate 1199: [THEN] 1200: >TARGET 1201: 1202: 0 Constant NIL 1203: 1204: >CROSS 1205: 1206: \ \ Create additional parameters 19jan95py 1207: 1208: \ currently cross only works for host machines with address-unit-bits 1209: \ eual to 8 because of s! and sc! 1210: \ but I start to query the environment just to modularize a little bit 1211: 1212: : check-address-unit-bits ( -- ) 1213: \ s" ADDRESS-UNIT-BITS" environment? 1214: \ IF 8 <> ELSE true THEN 1215: \ ABORT" ADDRESS-UNIT-BITS unknown or not equal to 8!" 1216: 1217: \ shit, this doesn't work because environment? is only defined for 1218: \ gforth.fi and not kernl???.fi 1219: ; 1220: 1221: check-address-unit-bits 1222: 8 Constant bits/byte \ we define: byte is address-unit 1223: 1224: 1 bits/byte lshift Constant maxbyte 1225: \ this sets byte size for the target machine, (probably right guess) jaw 1226: 1227: T 1228: NIL Constant TNIL 1229: cell Constant tcell 1230: cell<< Constant tcell<< 1231: cell>bit Constant tcell>bit 1232: bits/char Constant tbits/char 1233: bits/char H bits/byte T / 1234: Constant tchar 1235: float Constant tfloat 1236: 1 bits/char lshift Constant tmaxchar 1237: [IFUNDEF] bits/byte 1238: 8 Constant tbits/byte 1239: [ELSE] 1240: bits/byte Constant tbits/byte 1241: [THEN] 1242: H 1243: tbits/char bits/byte / Constant tbyte 1244: 1245: 1246: \ Variables 06oct92py 1247: 1248: Variable (tlast) 1249: (tlast) Value tlast TNIL tlast ! \ Last name field 1250: Variable tlastcfa \ Last code field 1251: 1252: \ statistics 10jun97jaw 1253: 1254: Variable headers-named 0 headers-named ! 1255: Variable user-vars 0 user-vars ! 1256: 1257: : target>bitmask-size ( u1 -- u2 ) 1258: 1- tcell>bit rshift 1+ ; 1259: 1260: : allocatetarget ( size -- adr ) 1261: dup allocate ABORT" CROSS: No memory for target" 1262: swap over swap erase ; 1263: 1264: \ \ memregion.fs 1265: 1266: 1267: Variable last-defined-region \ pointer to last defined region 1268: Variable region-link \ linked list with all regions 1269: Variable mirrored-link \ linked list for mirrored regions 1270: 0 dup mirrored-link ! region-link ! 1271: 1272: : >rname 9 cells + ; 1273: : >rtouch 8 cells + ; \ executed when region is accessed 1274: : >rbm 4 cells + ; \ bitfield per cell witch indicates relocation 1275: : >rmem 5 cells + ; 1276: : >rtype 6 cells + ; \ field per cell witch points to a type struct 1277: : >rrom 7 cells + ; \ a -1 indicates that this region is rom 1278: : >rlink 3 cells + ; 1279: : >rdp 2 cells + ; 1280: : >rlen cell+ ; 1281: : >rstart ; 1282: 1283: : (region) ( addr len region -- ) 1284: \G change startaddress and length of an existing region 1285: >r r@ last-defined-region ! 1286: r@ >rlen ! dup r@ >rstart ! r> >rdp ! ; 1287: 1288: : uninitialized -1 ABORT" CROSS: Region is uninitialized" ; 1289: 1290: : region ( addr len -- "name" ) 1291: \G create a new region 1292: \ check whether predefined region exists 1293: save-input bl word find >r >r restore-input throw r> r> 0= 1294: IF \ make region 1295: drop 1296: save-input create restore-input throw 1297: here last-defined-region ! 1298: over ( startaddr ) , ( length ) , ( dp ) , 1299: region-link linked 0 , 0 , 0 , 0 , 1300: ['] uninitialized , 1301: bl word count string, 1302: ELSE \ store new parameters in region 1303: bl word drop 1304: >body (region) 1305: THEN ; 1306: 1307: : borders ( region -- startaddr endaddr ) 1308: \G returns lower and upper region border 1309: dup >rstart @ swap >rlen @ over + ; 1310: 1311: : extent ( region -- startaddr len ) 1312: \G returns the really used area 1313: dup >rstart @ swap >rdp @ over - ; 1314: 1315: : area ( region -- startaddr totallen ) 1316: \G returns the total area 1317: dup >rstart @ swap >rlen @ ; 1318: 1319: : dp@ ( region -- dp ) 1320: >rdp @ ; 1321: 1322: : mirrored ( -- ) 1323: \G mark last defined region as mirrored 1324: mirrored-link 1325: align linked last-defined-region @ , ; 1326: 1327: : writeprotected 1328: \G mark a region as write protected 1329: -1 last-defined-region @ >rrom ! ; 1330: 1331: : .addr ( u -- ) 1332: \G prints a 16 or 32 Bit nice hex value 1333: base @ >r hex 1334: tcell 2 u> 1335: IF s>d <# # # # # [char] . hold # # # # #> type 1336: ELSE s>d <# # # # # # #> type 1337: THEN r> base ! space ; 1338: 1339: : .regions \G display region statistic 1340: 1341: \ we want to list the regions in the right order 1342: \ so first collect all regions on stack 1343: 0 region-link @ 1344: BEGIN dup WHILE dup @ REPEAT drop 1345: BEGIN dup 1346: WHILE cr 1347: 0 >rlink - >r 1348: r@ >rname count tuck type 1349: 12 swap - 0 max spaces space 1350: ." Start: " r@ >rstart @ dup .addr space 1351: ." End: " r@ >rlen @ + .addr space 1352: ." DP: " r> >rdp @ .addr 1353: REPEAT drop 1354: s" rom" T $has? H 0= ?EXIT 1355: cr ." Mirrored:" 1356: mirrored-link @ 1357: BEGIN dup 1358: WHILE space dup cell+ @ >rname count type @ 1359: REPEAT drop cr 1360: ; 1361: 1362: \ -------- predefined regions 1363: 1364: 0 0 region address-space 1365: \ total memory addressed and used by the target system 1366: 1367: 0 0 region user-region 1368: \ data for user variables goes here 1369: \ this has to be defined before dictionary or ram-dictionary 1370: 1371: 0 0 region dictionary 1372: \ rom area for the compiler 1373: 1374: T has? rom H 1375: [IF] 1376: 0 0 region ram-dictionary mirrored 1377: \ ram area for the compiler 1378: [ELSE] 1379: ' dictionary ALIAS ram-dictionary 1380: [THEN] 1381: 1382: 0 0 region return-stack 1383: 1384: 0 0 region data-stack 1385: 1386: 0 0 region tib-region 1387: 1388: ' dictionary ALIAS rom-dictionary 1389: 1390: : setup-region ( region -- ) 1391: >r 1392: \ allocate mem 1393: r@ >rlen @ allocatetarget 1394: r@ >rmem ! 1395: 1396: r@ >rlen @ 1397: target>bitmask-size allocatetarget 1398: r@ >rbm ! 1399: 1400: r@ >rlen @ 1401: tcell / 1+ cells allocatetarget r@ >rtype ! 1402: 1403: ['] noop r@ >rtouch ! 1404: rdrop ; 1405: 1406: : setup-target ( -- ) \G initialize target's memory space 1407: s" rom" T $has? H 1408: IF \ check for ram and rom... 1409: \ address-space area nip 0<> 1410: ram-dictionary area nip 0<> 1411: rom-dictionary area nip 0<> 1412: and 0= 1413: ABORT" CROSS: define address-space, rom- , ram-dictionary, with rom-support!" 1414: THEN 1415: address-space area nip 1416: IF 1417: address-space area 1418: ELSE 1419: dictionary area 1420: THEN 1421: nip 0= 1422: ABORT" CROSS: define at least address-space or dictionary!!" 1423: 1424: \ allocate target for each region 1425: region-link 1426: BEGIN @ dup 1427: WHILE dup 1428: 0 >rlink - >r 1429: r@ >rlen @ 1430: IF r@ setup-region 1431: THEN rdrop 1432: REPEAT drop ; 1433: 1434: \ MakeKernel 22feb99jaw 1435: 1436: : makekernel ( start targetsize -- ) 1437: \G convenience word to setup the memory of the target 1438: \G used by main.fs of the c-engine based systems 1439: dictionary (region) setup-target ; 1440: 1441: >MINIMAL 1442: : makekernel makekernel ; 1443: >CROSS 1444: 1445: \ \ switched tdp for rom support 03jun97jaw 1446: 1447: \ second value is here to store some maximal value for statistics 1448: \ tempdp is also embedded here but has nothing to do with rom support 1449: \ (needs switched dp) 1450: 1451: variable tempdp 0 , \ temporary dp for resolving 1452: variable tempdp-save 1453: 1454: 0 [IF] 1455: variable romdp 0 , \ Dictionary-Pointer for ramarea 1456: variable ramdp 0 , \ Dictionary-Pointer for romarea 1457: 1458: \ 1459: variable sramdp \ start of ram-area for forth 1460: variable sromdp \ start of rom-area for forth 1461: 1462: [THEN] 1463: 1464: 0 Value current-region 1465: 0 Value tdp 1466: Variable fixed \ flag: true: no automatic switching 1467: \ false: switching is done automatically 1468: 1469: \ Switch-Policy: 1470: \ 1471: \ a header is always compiled into rom 1472: \ after a created word (create and variable) compilation goes to ram 1473: \ 1474: \ Be careful: If you want to make the data behind create into rom 1475: \ you have to put >rom before create! 1476: 1477: variable constflag constflag off 1478: 1479: : activate ( region -- ) 1480: \G next code goes to this region 1481: dup to current-region >rdp to tdp ; 1482: 1483: : (switchram) 1484: fixed @ ?EXIT s" rom" T $has? H 0= ?EXIT 1485: ram-dictionary activate ; 1486: 1487: : switchram 1488: constflag @ 1489: IF constflag off ELSE (switchram) THEN ; 1490: 1491: : switchrom 1492: fixed @ ?EXIT rom-dictionary activate ; 1493: 1494: : >tempdp ( addr -- ) 1495: tdp tempdp-save ! tempdp to tdp tdp ! ; 1496: : tempdp> ( -- ) 1497: tempdp-save @ to tdp ; 1498: 1499: : >ram fixed off (switchram) fixed on ; 1500: : >rom fixed off switchrom fixed on ; 1501: : >auto fixed off switchrom ; 1502: 1503: 1504: 1505: \ : romstart dup sromdp ! romdp ! ; 1506: \ : ramstart dup sramdp ! ramdp ! ; 1507: 1508: \ default compilation goes to rom 1509: \ when romable support is off, only the rom switch is used (!!) 1510: >auto 1511: 1512: : there tdp @ ; 1513: 1514: >TARGET 1515: 1516: \ \ Target Memory Handling 1517: 1518: \ Byte ordering and cell size 06oct92py 1519: 1520: : cell+ tcell + ; 1521: : cells tcell<< lshift ; 1522: : chars tchar * ; 1523: : char+ tchar + ; 1524: : floats tfloat * ; 1525: 1526: >CROSS 1527: : cell/ tcell<< rshift ; 1528: >TARGET 1529: 20 CONSTANT bl 1530: \ TNIL Constant NIL 1531: 1532: >CROSS 1533: 1534: bigendian 1535: [IF] 1536: : DS! ( d addr -- ) tcell bounds swap 1- 1537: DO maxbyte ud/mod rot I c! -1 +LOOP 2drop ; 1538: : DS@ ( addr -- d ) >r 0 0 r> tcell bounds 1539: DO maxbyte * swap maxbyte um* rot + swap I c@ + swap LOOP ; 1540: : Sc! ( n addr -- ) >r s>d r> tchar bounds swap 1- 1541: DO maxbyte ud/mod rot I c! -1 +LOOP 2drop ; 1542: : Sc@ ( addr -- n ) >r 0 0 r> tchar bounds 1543: DO maxbyte * swap maxbyte um* rot + swap I c@ + swap LOOP d>s ; 1544: [ELSE] 1545: : DS! ( d addr -- ) tcell bounds 1546: DO maxbyte ud/mod rot I c! LOOP 2drop ; 1547: : DS@ ( addr -- n ) >r 0 0 r> tcell bounds swap 1- 1548: DO maxbyte * swap maxbyte um* rot + swap I c@ + swap -1 +LOOP ; 1549: : Sc! ( n addr -- ) >r s>d r> tchar bounds 1550: DO maxbyte ud/mod rot I c! LOOP 2drop ; 1551: : Sc@ ( addr -- n ) >r 0 0 r> tchar bounds swap 1- 1552: DO maxbyte * swap maxbyte um* rot + swap I c@ + swap -1 +LOOP d>s ; 1553: [THEN] 1554: 1555: : S! ( n addr -- ) >r s>d r> DS! ; 1556: : S@ ( addr -- n ) DS@ d>s ; 1557: 1558: : taddr>region ( taddr -- region | 0 ) 1559: \G finds for a target-address the correct region 1560: \G returns 0 if taddr is not in range of a target memory region 1561: region-link 1562: BEGIN @ dup 1563: WHILE dup >r 1564: 0 >rlink - >r 1565: r@ >rlen @ 1566: IF dup r@ borders within 1567: IF r> r> drop nip 1568: dup >rtouch @ EXECUTE EXIT 1569: THEN 1570: THEN 1571: r> drop 1572: r> 1573: REPEAT 1574: 2drop 0 ; 1575: 1576: : taddr>region-abort ( taddr -- region | 0 ) 1577: \G Same as taddr>region but aborts if taddr is not 1578: \G a valid address in the target address space 1579: dup taddr>region dup 0= 1580: IF drop cr ." Wrong address: " .addr 1581: -1 ABORT" Address out of range!" 1582: THEN nip ; 1583: 1584: : (>regionimage) ( taddr -- 'taddr ) 1585: dup 1586: \ find region we want to address 1587: taddr>region-abort 1588: >r 1589: \ calculate offset in region 1590: r@ >rstart @ - 1591: \ add regions real address in our memory 1592: r> >rmem @ + ; 1593: 1594: : (>regionramimage) ( taddr -- 'taddr ) 1595: \G same as (>regionimage) but aborts if the region is rom 1596: dup 1597: \ find region we want to address 1598: taddr>region-abort 1599: >r 1600: r@ >rrom @ ABORT" CROSS: region is write-protected!" 1601: \ calculate offset in region 1602: r@ >rstart @ - 1603: \ add regions real address in our memory 1604: r> >rmem @ + ; 1605: 1606: : (>regionbm) ( taddr -- 'taddr bitmaskbaseaddr ) 1607: dup 1608: \ find region we want to address 1609: taddr>region-abort 1610: >r 1611: \ calculate offset in region 1612: r@ >rstart @ - 1613: \ add regions real address in our memory 1614: r> >rbm @ ; 1615: 1616: : (>regiontype) ( taddr -- 'taddr ) 1617: dup 1618: \ find region we want to address 1619: taddr>region-abort 1620: >r 1621: \ calculate offset in region 1622: r@ >rstart @ - tcell / cells 1623: \ add regions real address in our memory 1624: r> >rtype @ + ; 1625: 1626: \ Bit string manipulation 06oct92py 1627: \ 9may93jaw 1628: CREATE Bittable 80 c, 40 c, 20 c, 10 c, 8 c, 4 c, 2 c, 1 c, 1629: : bits ( n -- n ) chars Bittable + c@ ; 1630: 1631: : >bit ( addr n -- c-addr mask ) 8 /mod rot + swap bits ; 1632: : +bit ( addr n -- ) >bit over c@ or swap c! ; 1633: : -bit ( addr n -- ) >bit invert over c@ and swap c! ; 1634: 1635: : @relbit ( taddr -- f ) (>regionbm) swap cell/ >bit swap c@ and ; 1636: 1637: : (relon) ( taddr -- ) 1638: [ [IFDEF] fd-relocation-table ] 1639: s" +" fd-relocation-table write-file throw 1640: dup s>d <# #s #> fd-relocation-table write-line throw 1641: [ [THEN] ] 1642: (>regionbm) swap cell/ +bit ; 1643: 1644: : (reloff) ( taddr -- ) 1645: [ [IFDEF] fd-relocation-table ] 1646: s" -" fd-relocation-table write-file throw 1647: dup s>d <# #s #> fd-relocation-table write-line throw 1648: [ [THEN] ] 1649: (>regionbm) swap cell/ -bit ; 1650: 1651: DEFER >image 1652: DEFER >ramimage 1653: DEFER relon 1654: DEFER reloff 1655: DEFER correcter 1656: 1657: T has? relocate H 1658: [IF] 1659: ' (relon) IS relon 1660: ' (reloff) IS reloff 1661: ' (>regionimage) IS >image 1662: ' (>regionimage) IS >ramimage 1663: [ELSE] 1664: ' drop IS relon 1665: ' drop IS reloff 1666: ' (>regionimage) IS >image 1667: ' (>regionimage) IS >ramimage 1668: [THEN] 1669: 1670: : enforce-writeprotection ( -- ) 1671: ['] (>regionramimage) IS >ramimage ; 1672: 1673: : relax-writeprotection ( -- ) 1674: ['] (>regionimage) IS >ramimage ; 1675: 1676: : writeprotection-relaxed? ( -- ) 1677: ['] >ramimage >body @ ['] (>regionimage) = ; 1678: 1679: \ Target memory access 06oct92py 1680: 1681: : align+ ( taddr -- rest ) 1682: tcell tuck 1- and - [ tcell 1- ] Literal and ; 1683: : cfalign+ ( taddr -- rest ) 1684: \ see kernel.fs:cfaligned 1685: /maxalign tuck 1- and - [ /maxalign 1- ] Literal and ; 1686: 1687: >TARGET 1688: : aligned ( taddr -- ta-addr ) dup align+ + ; 1689: \ assumes cell alignment granularity (as GNU C) 1690: 1691: : cfaligned ( taddr1 -- taddr2 ) 1692: \ see kernel.fs 1693: dup cfalign+ + ; 1694: 1695: : @ ( taddr -- w ) >image S@ ; 1696: : ! ( w taddr -- ) >ramimage S! ; 1697: : c@ ( taddr -- char ) >image Sc@ ; 1698: : c! ( char taddr -- ) >ramimage Sc! ; 1699: : 2@ ( taddr -- x1 x2 ) T dup cell+ @ swap @ H ; 1700: : 2! ( x1 x2 taddr -- ) T tuck ! cell+ ! H ; 1701: 1702: \ Target compilation primitives 06oct92py 1703: \ included A! 16may93jaw 1704: 1705: : here ( -- there ) there ; 1706: : allot ( n -- ) tdp +! ; 1707: : , ( w -- ) T here H tcell T allot ! H ; 1708: : c, ( char -- ) T here H tchar T allot c! H ; 1709: : align ( -- ) T here H align+ 0 ?DO bl T c, H tchar +LOOP ; 1710: : cfalign ( -- ) 1711: T here H cfalign+ 0 ?DO bl T c, H tchar +LOOP ; 1712: 1713: : >address dup 0>= IF tbyte / THEN ; \ ?? jaw 1714: : A! swap >address swap dup relon T ! H ; 1715: : A, ( w -- ) >address T here H relon T , H ; 1716: 1717: \ high-level ghosts 1718: 1719: >CROSS 1720: 1721: Ghost (do) Ghost (?do) 2drop 1722: Ghost (for) drop 1723: Ghost (loop) Ghost (+loop) 2drop 1724: Ghost (next) drop 1725: Ghost (does>) Ghost (does>1) Ghost (does>2) 2drop drop 1726: Ghost compile, drop 1727: Ghost (.") Ghost (S") Ghost (ABORT") 2drop drop 1728: Ghost (C") Ghost c(abort") Ghost type 2drop drop 1729: Ghost ' drop 1730: 1731: \ user ghosts 1732: 1733: Ghost state drop 1734: 1735: \ \ -------------------- Host/Target copy etc. 29aug01jaw 1736: 1737: 1738: >CROSS 1739: 1740: : TD! >image DS! ; 1741: : TD@ >image DS@ ; 1742: 1743: : th-count ( taddr -- host-addr len ) 1744: \G returns host address of target string 1745: assert1( tbyte 1 = ) 1746: dup X c@ swap X char+ >image swap ; 1747: 1748: : ht-move ( haddr taddr len -- ) 1749: \G moves data from host-addr to destination in target-addr 1750: \G character by character 1751: swap -rot bounds ?DO I c@ over X c! X char+ LOOP drop ; 1752: 1753: 2Variable last-string 1754: X has? rom [IF] $60 [ELSE] $00 [THEN] Constant header-masks 1755: 1756: : ht-header, ( addr count -- ) 1757: dup there swap last-string 2! 1758: dup header-masks or T c, H bounds ?DO I c@ T c, H LOOP ; 1759: : ht-string, ( addr count -- ) 1760: dup there swap last-string 2! 1761: dup T c, H bounds ?DO I c@ T c, H LOOP ; 1762: : ht-mem, ( addr count ) 1763: bounds ?DO I c@ T c, H LOOP ; 1764: 1765: >TARGET 1766: 1767: : count dup X c@ swap X char+ swap ; 1768: 1769: : on >r -1 -1 r> TD! ; 1770: : off T 0 swap ! H ; 1771: 1772: : tcmove ( source dest len -- ) 1773: \G cmove in target memory 1774: tchar * bounds 1775: ?DO dup T c@ H I T c! H 1+ 1776: tchar +LOOP drop ; 1777: 1778: : tcallot ( char size -- ) 1779: 0 ?DO dup T c, H tchar +LOOP drop ; 1780: 1781: : td, ( d -- ) 1782: \G Store a host value as one cell into the target 1783: there tcell X allot TD! ; 1784: 1785: \ \ Load Assembler 1786: 1787: >TARGET 1788: H also Forth definitions 1789: 1790: \ FIXME: should we include the assembler really in the forth 1791: \ dictionary?!?!?!? This conflicts with the existing assembler 1792: \ of the host forth system!! 1793: [IFDEF] asm-include asm-include [THEN] hex 1794: 1795: previous 1796: 1797: 1798: >CROSS 1799: 1800: : (cc) T a, H ; ' (cc) plugin-of colon, 1801: : (prim) T a, H ; ' (prim) plugin-of prim, 1802: 1803: : (cr) >tempdp colon, tempdp> ; ' (cr) plugin-of colon-resolve 1804: : (ar) T ! H ; ' (ar) plugin-of addr-resolve 1805: : (dr) ( ghost res-pnt target-addr addr ) 1806: >tempdp drop over 1807: dup >magic @ <do:> = 1808: IF doer, 1809: ELSE dodoes, 1810: THEN 1811: tempdp> ; ' (dr) plugin-of doer-resolve 1812: 1813: : (cm) ( -- addr ) 1814: there -1 colon, ; ' (cm) plugin-of colonmark, 1815: 1816: >TARGET 1817: : compile, ( xt -- ) 1818: dup xt>ghost >comp @ EXECUTE ; 1819: >CROSS 1820: 1821: \ resolve structure 1822: 1823: : >next ; \ link to next field 1824: : >tag cell+ ; \ indecates type of reference: 0: call, 1: address, 2: doer 1825: : >taddr cell+ cell+ ; 1826: : >ghost 3 cells + ; 1827: : >file 4 cells + ; 1828: : >line 5 cells + ; 1829: 1830: : (refered) ( ghost addr tag -- ) 1831: \G creates a reference to ghost at address taddr 1832: >space 1833: rot >link linked 1834: ( taddr tag ) , 1835: ( taddr ) , 1836: last-header-ghost @ , 1837: loadfile , 1838: sourceline# , 1839: space> 1840: ; 1841: 1842: : refered ( ghost tag -- ) 1843: \G creates a resolve structure 1844: T here aligned H swap (refered) 1845: ; 1846: 1847: : killref ( addr ghost -- ) 1848: \G kills a forward reference to ghost at position addr 1849: \G this is used to eleminate a :dovar refence after making a DOES> 1850: dup >magic @ <fwd> <> IF 2drop EXIT THEN 1851: swap >r >link 1852: BEGIN dup @ dup ( addr last this ) 1853: WHILE dup >taddr @ r@ = 1854: IF @ over ! 1855: ELSE nip THEN 1856: REPEAT rdrop 2drop 1857: ; 1858: 1859: Defer resolve-warning 1860: 1861: : reswarn-test ( ghost res-struct -- ghost res-struct ) 1862: over cr ." Resolving " .ghost dup ." in " >ghost @ .ghost ; 1863: 1864: : reswarn-forward ( ghost res-struct -- ghost res-struct ) 1865: over warnhead .ghost dup ." is referenced in " 1866: >ghost @ .ghost ; 1867: 1868: \ ' reswarn-test IS resolve-warning 1869: 1870: \ resolve 14oct92py 1871: 1872: : resolve-loop ( ghost resolve-list tcfa -- ) 1873: >r 1874: BEGIN dup WHILE 1875: \ dup >tag @ 2 = IF reswarn-forward THEN 1876: resolve-warning 1877: r@ over >taddr @ 1878: 2 pick >tag @ 1879: CASE 0 OF colon-resolve ENDOF 1880: 1 OF addr-resolve ENDOF 1881: 2 OF doer-resolve ENDOF 1882: ENDCASE 1883: @ \ next list element 1884: REPEAT 2drop rdrop 1885: ; 1886: 1887: \ : resolve-loop ( ghost tcfa -- ghost tcfa ) 1888: \ >r dup >link @ 1889: \ BEGIN dup WHILE dup T @ H r@ rot T ! H REPEAT drop r> ; 1890: 1891: \ exists 9may93jaw 1892: 1893: : exists ( ghost tcfa -- ) 1894: \G print warning and set new target link in ghost 1895: swap exists-warning 1896: >link ! ; 1897: 1898: : colon-resolved ( ghost -- ) 1899: \ compiles a call to a colon definition, 1900: \ compile action for >comp field 1901: >link @ colon, ; 1902: 1903: : prim-resolved ( ghost -- ) 1904: \ compiles a call to a primitive 1905: >link @ prim, ; 1906: 1907: : (is-forward) ( ghost -- ) 1908: colonmark, 0 (refered) ; \ compile space for call 1909: ' (is-forward) IS is-forward 1910: 1911: 0 Value resolved 1912: 1913: : resolve-forward-references ( ghost resolve-list -- ) 1914: \ loop through forward referencies 1915: comp-state @ >r Resolving comp-state ! 1916: over >link @ resolve-loop 1917: r> comp-state ! 1918: 1919: ['] noop IS resolve-warning ; 1920: 1921: 1922: : (resolve) ( ghost tcfa -- ghost resolve-list ) 1923: \ check for a valid address, it is a primitive reference 1924: \ otherwise 1925: dup taddr>region 0<> IF 1926: \ define this address in the region address type table 1927: 2dup (>regiontype) define-addr-struct addr-xt-ghost 1928: \ we define new address only if empty 1929: \ this is for not to take over the alias ghost 1930: \ (different ghost, but identical xt) 1931: \ but the very first that really defines it 1932: dup @ 0= IF ! ELSE 2drop THEN 1933: THEN 1934: swap >r 1935: r@ to resolved 1936: 1937: \ r@ >comp @ ['] is-forward = 1938: \ ABORT" >comp action not set on a resolved ghost" 1939: 1940: \ copmile action defaults to colon-resolved 1941: \ if this is not right something must be set before 1942: \ calling resolve 1943: r@ >comp @ ['] is-forward = IF 1944: ['] colon-resolved r@ >comp ! 1945: THEN 1946: r@ >link @ swap \ ( list tcfa R: ghost ) 1947: \ mark ghost as resolved 1948: r@ >link ! <res> r@ >magic ! 1949: r> swap ; 1950: 1951: : resolve ( ghost tcfa -- ) 1952: \G resolve referencies to ghost with tcfa 1953: \ is ghost resolved?, second resolve means another 1954: \ definition with the same name 1955: over undefined? 0= IF exists EXIT THEN 1956: (resolve) 1957: ( ghost resolve-list ) 1958: resolve-forward-references ; 1959: 1960: : resolve-noforwards ( ghost tcfa -- ) 1961: \G Same as resolve but complain if there are any 1962: \G forward references on this ghost 1963: \ is ghost resolved?, second resolve means another 1964: \ definition with the same name 1965: over undefined? 0= IF exists EXIT THEN 1966: (resolve) 1967: IF cr ." No forward references allowed on: " .ghost cr 1968: -1 ABORT" Illegal forward reference" 1969: THEN 1970: drop ; 1971: 1972: \ gexecute ghost, 01nov92py 1973: 1974: : (gexecute) ( ghost -- ) 1975: dup >comp @ EXECUTE ; 1976: 1977: : gexecute ( ghost -- ) 1978: dup >magic @ <imm> = ABORT" CROSS: gexecute on immediate word" 1979: (gexecute) ; 1980: 1981: : addr, ( ghost -- ) 1982: dup forward? IF 1 refered 0 T a, H ELSE >link @ T a, H THEN ; 1983: 1984: \ .unresolved 11may93jaw 1985: 1986: variable ResolveFlag 1987: 1988: \ ?touched 11may93jaw 1989: 1990: : ?touched ( ghost -- flag ) dup forward? swap >link @ 1991: 0 <> and ; 1992: 1993: : .forwarddefs ( ghost -- ) 1994: ." appeared in:" 1995: >link 1996: BEGIN @ dup 1997: WHILE cr 5 spaces 1998: dup >ghost @ .ghost 1999: ." file " dup >file @ ?dup IF count type ELSE ." CON" THEN 2000: ." line " dup >line @ .dec 2001: REPEAT 2002: drop ; 2003: 2004: : ?resolved ( ghost -- ) 2005: dup ?touched 2006: IF ResolveFlag on 2007: dup cr .ghost .forwarddefs 2008: ELSE drop 2009: THEN ; 2010: 2011: : .unresolved ( -- ) 2012: ResolveFlag off cr ." Unresolved: " 2013: ghost-list 2014: BEGIN @ dup 2015: WHILE dup ?resolved 2016: REPEAT drop ResolveFlag @ 2017: IF 2018: -1 abort" Unresolved words!" 2019: ELSE 2020: ." Nothing!" 2021: THEN 2022: cr ; 2023: 2024: : .stats 2025: base @ >r decimal 2026: cr ." named Headers: " headers-named @ . 2027: r> base ! ; 2028: 2029: >MINIMAL 2030: 2031: : .unresolved .unresolved ; 2032: 2033: >CROSS 2034: \ Header states 12dec92py 2035: 2036: \ : flag! ( 8b -- ) tlast @ dup >r T c@ xor r> c! H ; 2037: X has? f83headerstring bigendian or [IF] 0 [ELSE] tcell 1- [THEN] Constant flag+ 2038: : flag! ( w -- ) tlast @ flag+ + dup >r T c@ xor r> c! H ; 2039: 2040: VARIABLE ^imm 2041: 2042: \ !! should be target wordsize specific 2043: $80 constant alias-mask 2044: $40 constant immediate-mask 2045: $20 constant restrict-mask 2046: 2047: >TARGET 2048: : immediate immediate-mask flag! 2049: ^imm @ @ dup <imm> = IF drop EXIT THEN 2050: <res> <> ABORT" CROSS: Cannot immediate a unresolved word" 2051: <imm> ^imm @ ! ; 2052: : restrict restrict-mask flag! ; 2053: 2054: : isdoer 2055: \G define a forth word as doer, this makes obviously only sence on 2056: \G forth processors such as the PSC1000 2057: <do:> last-header-ghost @ >magic ! ; 2058: >CROSS 2059: 2060: \ Target Header Creation 01nov92py 2061: 2062: : ht-lstring, ( addr count -- ) 2063: dup T , H bounds ?DO I c@ T c, H LOOP ; 2064: 2065: >TARGET 2066: X has? f83headerstring [IF] 2067: : name, ( "name" -- ) bl word count ht-header, X cfalign ; 2068: [ELSE] 2069: : name, ( "name" -- ) bl word count ht-lstring, X cfalign ; 2070: [THEN] 2071: : view, ( -- ) ( dummy ) ; 2072: >CROSS 2073: 2074: \ Target Document Creation (goes to crossdoc.fd) 05jul95py 2075: 2076: s" ./doc/crossdoc.fd" r/w create-file throw value doc-file-id 2077: \ contains the file-id of the documentation file 2078: 2079: : T-\G ( -- ) 2080: source >in @ /string doc-file-id write-line throw 2081: postpone \ ; 2082: 2083: Variable to-doc to-doc on 2084: 2085: : cross-doc-entry ( -- ) 2086: to-doc @ tlast @ 0<> and \ not an anonymous (i.e. noname) header 2087: IF 2088: s" " doc-file-id write-line throw 2089: s" make-doc " doc-file-id write-file throw 2090: 2091: Last-Header-Ghost @ >ghostname doc-file-id write-file throw 2092: >in @ 2093: [char] ( parse 2drop 2094: [char] ) parse doc-file-id write-file throw 2095: s" )" doc-file-id write-file throw 2096: [char] \ parse 2drop 2097: T-\G 2098: >in ! 2099: THEN ; 2100: 2101: \ Target TAGS creation 2102: 2103: s" kernel.TAGS" r/w create-file throw value tag-file-id 2104: s" kernel.tags" r/w create-file throw value vi-tag-file-id 2105: \ contains the file-id of the tags file 2106: 2107: Create tag-beg 1 c, 7F c, 2108: Create tag-end 1 c, 01 c, 2109: Create tag-bof 1 c, 0C c, 2110: Create tag-tab 1 c, 09 c, 2111: 2112: 2variable last-loadfilename 0 0 last-loadfilename 2! 2113: 2114: : put-load-file-name ( -- ) 2115: sourcefilename last-loadfilename 2@ d<> 2116: IF 2117: tag-bof count tag-file-id write-line throw 2118: sourcefilename 2dup 2119: tag-file-id write-file throw 2120: last-loadfilename 2! 2121: s" ,0" tag-file-id write-line throw 2122: THEN ; 2123: 2124: : cross-gnu-tag-entry ( -- ) 2125: tlast @ 0<> \ not an anonymous (i.e. noname) header 2126: IF 2127: put-load-file-name 2128: source >in @ min tag-file-id write-file throw 2129: tag-beg count tag-file-id write-file throw 2130: Last-Header-Ghost @ >ghostname tag-file-id write-file throw 2131: tag-end count tag-file-id write-file throw 2132: base @ decimal sourceline# 0 <# #s #> tag-file-id write-file throw 2133: \ >in @ 0 <# #s [char] , hold #> tag-file-id write-line throw 2134: s" ,0" tag-file-id write-line throw 2135: base ! 2136: THEN ; 2137: 2138: : cross-vi-tag-entry ( -- ) 2139: tlast @ 0<> \ not an anonymous (i.e. noname) header 2140: IF 2141: sourcefilename vi-tag-file-id write-file throw 2142: tag-tab count vi-tag-file-id write-file throw 2143: Last-Header-Ghost @ >ghostname vi-tag-file-id write-file throw 2144: tag-tab count vi-tag-file-id write-file throw 2145: s" /^" vi-tag-file-id write-file throw 2146: source vi-tag-file-id write-file throw 2147: s" $/" vi-tag-file-id write-line throw 2148: THEN ; 2149: 2150: : cross-tag-entry ( -- ) 2151: cross-gnu-tag-entry 2152: cross-vi-tag-entry ; 2153: 2154: \ Check for words 2155: 2156: Defer skip? ' false IS skip? 2157: 2158: : skipdef ( "name" -- ) 2159: \G skip definition of an undefined word in undef-words and 2160: \G all-words mode 2161: Ghost dup forward? 2162: IF >magic <skip> swap ! 2163: ELSE drop THEN ; 2164: 2165: : tdefined? ( "name" -- flag ) 2166: Ghost undefined? 0= ; 2167: 2168: : defined2? ( "name" -- flag ) 2169: \G return true for anything else than forward, even for <skip> 2170: \G that's what we want 2171: Ghost forward? 0= ; 2172: 2173: : forced? ( "name" -- flag ) 2174: \G return ture if it is a foreced skip with defskip 2175: Ghost >magic @ <skip> = ; 2176: 2177: : needed? ( -- flag ) \ name 2178: \G returns a false flag when 2179: \G a word is not defined 2180: \G a forward reference exists 2181: \G so the definition is not skipped! 2182: bl word gfind 2183: IF dup undefined? 2184: nip 2185: 0= 2186: ELSE drop true THEN ; 2187: 2188: : doer? ( "name" -- 0 | addr ) \ name 2189: Ghost dup >magic @ <do:> = 2190: IF >link @ ELSE drop 0 THEN ; 2191: 2192: : skip-defs ( -- ) 2193: BEGIN refill WHILE source -trailing nip 0= UNTIL THEN ; 2194: 2195: \ Target header creation 2196: 2197: Variable NoHeaderFlag 2198: NoHeaderFlag off 2199: 2200: : 0.r ( n1 n2 -- ) 2201: base @ >r hex 2202: 0 swap <# 0 ?DO # LOOP #> type 2203: r> base ! ; 2204: 2205: : .sym ( adr len -- ) 2206: \G escapes / and \ to produce sed output 2207: bounds 2208: DO I c@ dup 2209: CASE [char] / OF drop ." \/" ENDOF 2210: [char] \ OF drop ." \\" ENDOF 2211: dup OF emit ENDOF 2212: ENDCASE 2213: LOOP ; 2214: 2215: Defer setup-execution-semantics ' noop IS setup-execution-semantics 2216: 0 Value lastghost 2217: 2218: : (THeader ( "name" -- ghost ) 2219: \ >in @ bl word count type 2 spaces >in ! 2220: \ wordheaders will always be compiled to rom 2221: switchrom 2222: \ build header in target 2223: NoHeaderFlag @ 2224: IF NoHeaderFlag off 2225: ELSE 2226: T align H view, 2227: tlast @ dup 0> IF tcell - THEN T A, H there tlast ! 2228: 1 headers-named +! \ Statistic 2229: >in @ T name, H >in ! 2230: THEN 2231: T cfalign here H tlastcfa ! 2232: \ Old Symbol table sed-script 2233: \ >in @ cr ." sym:s/CFA=" there 4 0.r ." /" bl word count .sym ." /g" cr >in ! 2234: HeaderGhost 2235: \ output symbol table to extra file 2236: dup >ghostname there symentry 2237: dup Last-Header-Ghost ! dup to lastghost 2238: dup >magic ^imm ! \ a pointer for immediate 2239: alias-mask flag! 2240: cross-doc-entry cross-tag-entry 2241: setup-execution-semantics 2242: ; 2243: 2244: \ this is the resolver information from ":" 2245: \ resolving is done by ";" 2246: Variable ;Resolve 1 cells allot 2247: 2248: : hereresolve ( ghost -- ) 2249: there resolve 0 ;Resolve ! ; 2250: 2251: : Theader ( "name" -- ghost ) 2252: (THeader dup hereresolve ; 2253: 2254: Variable aprim-nr -20 aprim-nr ! 2255: 2256: : copy-execution-semantics ( ghost-from ghost-dest -- ) 2257: >r 2258: dup >exec @ r@ >exec ! 2259: dup >comp @ r@ >comp ! 2260: dup >exec2 @ r@ >exec2 ! 2261: dup >exec-compile @ r@ >exec-compile ! 2262: dup >ghost-xt @ r@ >ghost-xt ! 2263: dup >created @ r@ >created ! 2264: rdrop drop ; 2265: 2266: >TARGET 2267: 2268: : Alias ( cfa -- ) \ name 2269: >in @ skip? IF 2drop EXIT THEN >in ! 2270: (THeader ( S xt ghost ) 2271: 2dup swap xt>ghost swap copy-execution-semantics 2272: over resolve T A, H alias-mask flag! ; 2273: 2274: Variable last-prim-ghost 2275: 0 last-prim-ghost ! 2276: 2277: : asmprimname, ( ghost -- : name ) 2278: dup last-prim-ghost ! 2279: >r 2280: here bl word count string, r@ >asm-name ! 2281: aprim-nr @ r> >asm-dummyaddr ! ; 2282: 2283: Defer setup-prim-semantics 2284: 2285: : mapprim ( "forthname" "asmlabel" -- ) 2286: THeader -1 aprim-nr +! aprim-nr @ T A, H 2287: asmprimname, 2288: setup-prim-semantics ; 2289: 2290: : mapprim: ( "forthname" "asmlabel" -- ) 2291: -1 aprim-nr +! aprim-nr @ 2292: Ghost tuck swap resolve-noforwards <do:> swap tuck >magic ! 2293: asmprimname, ; 2294: 2295: : Doer: ( cfa -- ) \ name 2296: >in @ skip? IF 2drop EXIT THEN >in ! 2297: dup 0< s" prims" T $has? H 0= and 2298: IF 2299: .sourcepos ." needs doer: " >in @ bl word count type >in ! cr 2300: THEN 2301: Ghost 2302: tuck swap resolve-noforwards <do:> swap >magic ! ; 2303: 2304: Variable prim# 2305: : first-primitive ( n -- ) prim# ! ; 2306: : group 0 word drop prim# @ 1- -$200 and prim# ! ; 2307: : groupadd ( n -- ) drop ; 2308: : Primitive ( -- ) \ name 2309: >in @ skip? IF drop EXIT THEN >in ! 2310: s" prims" T $has? H 0= 2311: IF 2312: .sourcepos ." needs prim: " >in @ bl word count type >in ! cr 2313: THEN 2314: prim# @ (THeader ( S xt ghost ) 2315: ['] prim-resolved over >comp ! 2316: dup >ghost-flags <primitive> set-flag 2317: over resolve-noforwards T A, H alias-mask flag! 2318: -1 prim# +! ; 2319: >CROSS 2320: 2321: \ Conditionals and Comments 11may93jaw 2322: 2323: \G saves the existing cond action, this is used for redefining in 2324: \G instant 2325: Variable cond-xt-old 2326: 2327: : cond-target ( -- ) 2328: \G Compiles semantic of redefined cond into new one 2329: cond-xt-old @ compile, ; immediate restrict 2330: 2331: : ;Cond 2332: postpone ; 2333: swap ! ; immediate 2334: 2335: : Cond: ( "name" -- ) 2336: \g defines a conditional or another word that must 2337: \g be executed directly while compiling 2338: \g these words have no interpretative semantics by default 2339: Ghost 2340: >exec-compile 2341: dup @ cond-xt-old ! 2342: :NONAME ; 2343: 2344: 2345: : Comment ( -- ) 2346: >in @ Ghost swap >in ! ' swap 2347: 2dup >exec-compile ! >exec ! ; 2348: 2349: Comment ( Comment \ 2350: 2351: \ compile 10may93jaw 2352: 2353: : compile ( "name" -- ) \ name 2354: findghost 2355: dup >exec-compile @ ?dup 2356: IF nip compile, 2357: ELSE postpone literal postpone gexecute THEN ; immediate restrict 2358: 2359: >TARGET 2360: 2361: : ' ( -- xt ) 2362: \G returns the target-cfa of a ghost 2363: bl word gfind 0= ABORT" CROSS: Ghost don't exists" 2364: g>xt ; 2365: 2366: \ FIXME: this works for the current use cases, but is not 2367: \ in all cases correct ;-) 2368: : comp' X ' 0 ; 2369: 2370: Cond: ['] T ' H alit, ;Cond 2371: 2372: >CROSS 2373: 2374: : [T'] 2375: \ returns the target-cfa of a ghost, or compiles it as literal 2376: postpone [G'] 2377: state @ IF postpone g>xt ELSE g>xt THEN ; immediate 2378: 2379: \ \ threading modell 13dec92py 2380: \ modularized 14jun97jaw 2381: 2382: T 2 cells H Value xt>body 2383: 2384: : (>body) ( cfa -- pfa ) 2385: xt>body + ; ' (>body) plugin-of t>body 2386: 2387: : fillcfa ( usedcells -- ) 2388: T cells H xt>body swap - 2389: assert1( dup 0 >= ) 2390: 0 ?DO 0 X c, tchar +LOOP ; 2391: 2392: : (doer,) ( ghost -- ) 2393: addr, 1 fillcfa ; ' (doer,) plugin-of doer, 2394: 2395: : (docol,) ( -- ) [G'] :docol (doer,) ; ' (docol,) plugin-of docol, 2396: 2397: ' NOOP plugin-of ca>native 2398: 2399: : (doprim,) ( -- ) 2400: there xt>body + ca>native T a, H 1 fillcfa ; ' (doprim,) plugin-of doprim, 2401: 2402: : (doeshandler,) ( -- ) 2403: T cfalign H [G'] :doesjump addr, T 0 , H ; ' (doeshandler,) plugin-of doeshandler, 2404: 2405: : (dodoes,) ( does-action-ghost -- ) 2406: ]comp [G'] :dodoes addr, comp[ 2407: addr, 2408: \ the relocator in the c engine, does not like the 2409: \ does-address to marked for relocation 2410: [ T e? ec H 0= [IF] ] T here H tcell - reloff [ [THEN] ] 2411: 2 fillcfa ; ' (dodoes,) plugin-of dodoes, 2412: 2413: : (dlit,) ( n -- ) compile lit td, ; ' (dlit,) plugin-of dlit, 2414: 2415: : (lit,) ( n -- ) s>d dlit, ; ' (lit,) plugin-of lit, 2416: 2417: \ if we dont produce relocatable code alit, defaults to lit, jaw 2418: \ this is just for convenience, so we don't have to define alit, 2419: \ seperately for embedded systems.... 2420: T has? relocate H 2421: [IF] 2422: : (alit,) ( n -- ) compile lit T a, H ; ' (alit,) plugin-of alit, 2423: [ELSE] 2424: : (alit,) ( n -- ) lit, ; ' (alit,) plugin-of alit, 2425: [THEN] 2426: 2427: : (fini,) compile ;s ; ' (fini,) plugin-of fini, 2428: 2429: [IFUNDEF] (code) 2430: Defer (code) 2431: Defer (end-code) 2432: [THEN] 2433: 2434: >TARGET 2435: : Code 2436: defempty? 2437: (THeader ( ghost ) 2438: ['] prim-resolved over >comp ! 2439: there resolve-noforwards 2440: 2441: [ T e? prims H 0= [IF] T e? ITC H [ELSE] true [THEN] ] [IF] 2442: doprim, 2443: [THEN] 2444: depth (code) ; 2445: 2446: \ FIXME : no-compile -1 ABORT" this ghost is not for compilation" ; 2447: 2448: : Code: 2449: defempty? 2450: Ghost >r 2451: r@ >ghostname there symentry 2452: r@ there ca>native resolve-noforwards 2453: <do:> r@ >magic ! 2454: r> drop 2455: depth (code) ; 2456: 2457: : end-code 2458: (end-code) 2459: depth ?dup IF 1- <> ABORT" CROSS: Stack changed" 2460: ELSE true ABORT" CROSS: Stack empty" THEN 2461: ; 2462: 2463: >CROSS 2464: 2465: \ tLiteral 12dec92py 2466: 2467: >TARGET 2468: Cond: \G T-\G ;Cond 2469: 2470: Cond: Literal ( n -- ) lit, ;Cond 2471: Cond: ALiteral ( n -- ) alit, ;Cond 2472: 2473: : Char ( "<char>" -- ) bl word char+ c@ ; 2474: Cond: [Char] ( "<char>" -- ) Char lit, ;Cond 2475: 2476: : (x#) ( adr len base -- ) 2477: base @ >r base ! 0 0 name >number 2drop drop r> base ! ; 2478: 2479: : d# $0a (x#) ; 2480: : h# $010 (x#) ; 2481: 2482: Cond: d# $0a (x#) lit, ;Cond 2483: Cond: h# $010 (x#) lit, ;Cond 2484: 2485: tchar 1 = [IF] 2486: Cond: chars ;Cond 2487: [THEN] 2488: 2489: \ some special literals 27jan97jaw 2490: 2491: Cond: MAXU 2492: -1 s>d dlit, 2493: ;Cond 2494: 2495: tcell 2 = tcell 4 = or tcell 8 = or 0= 2496: [IF] 2497: .( Warning: MINI and MAXI may not work with this host) cr 2498: [THEN] 2499: 2500: Cond: MINI 2501: tcell 2 = IF $8000 ELSE $80000000 THEN 0 2502: tcell 8 = IF swap THEN dlit, 2503: ;Cond 2504: 2505: Cond: MAXI 2506: tcell 2 = IF $7fff ELSE $7fffffff THEN 0 2507: tcell 8 = IF drop -1 swap THEN dlit, 2508: ;Cond 2509: 2510: >CROSS 2511: 2512: \ Target compiling loop 12dec92py 2513: \ ">tib trick thrown out 10may93jaw 2514: \ number? defined at the top 11may93jaw 2515: \ replaced >in by save-input 2516: 2517: : discard 0 ?DO drop LOOP ; 2518: 2519: \ compiled word might leave items on stack! 2520: : tcom ( x1 .. xn n name -- ) 2521: \ dup count type space 2522: gfind 2523: IF >r ( discard saved input state ) discard r> 2524: dup >exec-compile @ ?dup 2525: IF nip execute-exec-compile ELSE gexecute THEN 2526: EXIT 2527: THEN 2528: number? dup 2529: IF 0> IF swap lit, THEN lit, discard 2530: ELSE 2drop restore-input throw Ghost gexecute THEN ; 2531: 2532: \ : ; DOES> 13dec92py 2533: \ ] 9may93py/jaw 2534: 2535: >CROSS 2536: 2537: : compiling-state ( -- ) 2538: \G set states to compililng 2539: Compiling comp-state ! 2540: \ if we have a state in target, change it with the compile state 2541: [G'] state dup undefined? 0= 2542: IF >ghost-xt @ execute X on ELSE drop THEN ; 2543: 2544: : interpreting-state ( -- ) 2545: \G set states to interpreting 2546: \ if target has a state variable, change it according to our state 2547: [G'] state dup undefined? 0= 2548: IF >ghost-xt @ execute X off ELSE drop THEN 2549: Interpreting comp-state ! ; 2550: 2551: >TARGET 2552: 2553: : ] 2554: compiling-state 2555: BEGIN 2556: BEGIN save-input bl word 2557: dup c@ 0= WHILE drop discard refill 0= 2558: ABORT" CROSS: End of file while target compiling" 2559: REPEAT 2560: tcom 2561: compiling? 0= 2562: UNTIL ; 2563: 2564: \ by the way: defining a second interpreter (a compiler-)loop 2565: \ is not allowed if a system should be ans conform 2566: 2567: : (:) ( ghost -- ) 2568: \ common factor of : and :noname. Prepare ;Resolve and start definition 2569: ;Resolve ! there ;Resolve cell+ ! 2570: docol, ]comp colon-start depth T ] H ; 2571: 2572: : : ( -- colon-sys ) \ Name 2573: defempty? 2574: constflag off \ don't let this flag work over colon defs 2575: \ just to go sure nothing unwanted happens 2576: >in @ skip? IF drop skip-defs EXIT THEN >in ! 2577: (THeader (:) ; 2578: 2579: : :noname ( -- colon-sys ) 2580: switchrom X cfalign there 2581: \ define a nameless ghost 2582: here ghostheader dup last-header-ghost ! dup to lastghost 2583: (:) ; 2584: 2585: Cond: EXIT ( -- ) compile ;S ;Cond 2586: 2587: Cond: ?EXIT ( -- ) 1 abort" CROSS: using ?exit" ;Cond 2588: 2589: >CROSS 2590: : LastXT ;Resolve @ 0= abort" CROSS: no definition for LastXT" 2591: ;Resolve cell+ @ ; 2592: 2593: >TARGET 2594: 2595: Cond: recurse ( -- ) Last-Header-Ghost @ gexecute ;Cond 2596: 2597: Cond: ; ( -- ) 2598: depth ?dup 2599: IF 1- <> ABORT" CROSS: Stack changed" 2600: ELSE true ABORT" CROSS: Stack empty" 2601: THEN 2602: colon-end 2603: fini, 2604: comp[ 2605: ;Resolve @ 2606: IF ['] colon-resolved ;Resolve @ >comp ! 2607: ;Resolve @ ;Resolve cell+ @ resolve 2608: THEN 2609: interpreting-state 2610: ;Cond 2611: 2612: Cond: [ ( -- ) interpreting-state ;Cond 2613: 2614: >CROSS 2615: 2616: 0 Value created 2617: 2618: : !does ( does-action -- ) 2619: tlastcfa @ [G'] :dovar killref 2620: >space here >r ghostheader space> 2621: ['] colon-resolved r@ >comp ! 2622: r@ created >do:ghost ! r@ swap resolve 2623: r> tlastcfa @ >tempdp dodoes, tempdp> ; 2624: 2625: Defer instant-interpret-does>-hook ' noop IS instant-interpret-does>-hook 2626: 2627: T has? peephole H [IF] 2628: : does-resolved ( ghost -- ) 2629: compile does-exec g>xt T a, H ; 2630: [ELSE] 2631: : does-resolved ( ghost -- ) 2632: g>xt T a, H ; 2633: [THEN] 2634: 2635: : resolve-does>-part ( -- ) 2636: \ resolve words made by builders 2637: Last-Header-Ghost @ >do:ghost @ ?dup 2638: IF there resolve THEN ; 2639: 2640: >TARGET 2641: Cond: DOES> 2642: T here 5 cells H + alit, compile (does>2) compile ;s 2643: doeshandler, resolve-does>-part 2644: ;Cond 2645: 2646: : DOES> 2647: ['] does-resolved created >comp ! 2648: switchrom doeshandler, T here H !does 2649: instant-interpret-does>-hook 2650: depth T ] H ; 2651: 2652: >CROSS 2653: \ Creation 01nov92py 2654: 2655: \ Builder 11may93jaw 2656: 2657: 0 Value built 2658: 2659: : Builder ( Create-xt do-ghost "name" -- ) 2660: \ builds up a builder in current vocabulary 2661: \ create-xt is executed when word is interpreted 2662: \ do:-xt is executed when the created word from builder is executed 2663: \ for do:-xt an additional entry after the normal ghost-entrys is used 2664: 2665: ghost to built 2666: built >created @ 0= IF 2667: built >created on 2668: THEN ; 2669: 2670: : gdoes, ( ghost -- ) 2671: \ makes the codefield for a word that is built 2672: >do:ghost @ dup undefined? 0= 2673: IF 2674: dup >magic @ <do:> = 2675: IF doer, 2676: ELSE dodoes, 2677: THEN 2678: EXIT 2679: THEN 2680: \ compile :dodoes gexecute 2681: \ T here H tcell - reloff 2682: 2 refered 2683: 0 fillcfa 2684: ; 2685: 2686: : takeover-x-semantics ( S constructor-ghost new-ghost -- ) 2687: \g stores execution semantic and compilation semantic in the built word 2688: swap >do:ghost @ 2dup swap >do:ghost ! 2689: \ we use the >exec2 field for the semantic of a created word, 2690: \ using exec or exec2 makes no difference for normal cross-compilation 2691: \ but is usefull for instant where the exec field is already 2692: \ defined (e.g. Vocabularies) 2693: 2dup >exec @ swap >exec2 ! 2694: >comp @ swap >comp ! ; 2695: 2696: 0 Value createhere 2697: 2698: : create-resolve ( -- ) 2699: created createhere resolve 0 ;Resolve ! ; 2700: : create-resolve-immediate ( -- ) 2701: create-resolve T immediate H ; 2702: 2703: : TCreate ( <name> -- ) 2704: create-forward-warn 2705: IF ['] reswarn-forward IS resolve-warning THEN 2706: executed-ghost @ (Theader 2707: dup >created on dup to created 2708: 2dup takeover-x-semantics 2709: there to createhere drop gdoes, ; 2710: 2711: : RTCreate ( <name> -- ) 2712: \ creates a new word with code-field in ram 2713: create-forward-warn 2714: IF ['] reswarn-forward IS resolve-warning THEN 2715: \ make Alias 2716: executed-ghost @ (THeader 2717: dup >created on dup to created 2718: 2dup takeover-x-semantics 2719: there 0 T a, H alias-mask flag! 2720: \ store poiter to code-field 2721: switchram T cfalign H 2722: there swap T ! H 2723: there tlastcfa ! 2724: there to createhere drop gdoes, ; 2725: 2726: : Build: ( -- [xt] [colon-sys] ) 2727: :noname postpone TCreate ; 2728: 2729: : BuildSmart: ( -- [xt] [colon-sys] ) 2730: :noname 2731: [ T has? rom H [IF] ] 2732: postpone RTCreate 2733: [ [ELSE] ] 2734: postpone TCreate 2735: [ [THEN] ] ; 2736: 2737: : ;Build 2738: postpone create-resolve postpone ; built >exec ! ; immediate 2739: 2740: : ;Build-immediate 2741: postpone create-resolve-immediate 2742: postpone ; built >exec ! ; immediate 2743: 2744: : gdoes> ( ghost -- addr flag ) 2745: executed-ghost @ g>body ; 2746: 2747: \ DO: ;DO 11may93jaw 2748: 2749: : do:ghost! ( ghost -- ) built >do:ghost ! ; 2750: : doexec! ( xt -- ) built >do:ghost @ >exec ! ; 2751: 2752: : DO: ( -- [xt] [colon-sys] ) 2753: here ghostheader do:ghost! 2754: :noname postpone gdoes> ; 2755: 2756: : by: ( -- [xt] [colon-sys] ) \ name 2757: Ghost do:ghost! 2758: :noname postpone gdoes> ; 2759: 2760: : ;DO ( [xt] [colon-sys] -- ) 2761: postpone ; doexec! ; immediate 2762: 2763: : by ( -- ) \ Name 2764: Ghost >do:ghost @ do:ghost! ; 2765: 2766: : compile: ( --[xt] [colon-sys] ) 2767: \G defines a compile time action for created words 2768: \G by this builder 2769: :noname ; 2770: 2771: : ;compile ( [xt] [colon-sys] -- ) 2772: postpone ; built >do:ghost @ >comp ! ; immediate 2773: 2774: \ Variables and Constants 05dec92py 2775: 2776: Builder (Constant) 2777: Build: ( n -- ) ;Build 2778: by: :docon ( target-body-addr -- n ) T @ H ;DO 2779: 2780: Builder Constant 2781: Build: ( n -- ) T , H ;Build 2782: by (Constant) 2783: 2784: Builder AConstant 2785: Build: ( n -- ) T A, H ;Build 2786: by (Constant) 2787: 2788: Builder 2Constant 2789: Build: ( d -- ) T , , H ;Build 2790: DO: ( ghost -- d ) T dup cell+ @ swap @ H ;DO 2791: 2792: Builder Create 2793: BuildSmart: ;Build 2794: by: :dovar ( target-body-addr -- addr ) ;DO 2795: 2796: Builder Variable 2797: T has? rom H [IF] 2798: Build: ( -- ) T here 0 A, H switchram T align here swap ! 0 , H ( switchrom ) ;Build 2799: by (Constant) 2800: [ELSE] 2801: Build: T 0 , H ;Build 2802: by Create 2803: [THEN] 2804: 2805: Builder 2Variable 2806: T has? rom H [IF] 2807: Build: ( -- ) T here 0 A, H switchram T align here swap ! 0 , 0 , H ( switchrom ) ;Build 2808: by (Constant) 2809: [ELSE] 2810: Build: T 0 , 0 , H ;Build 2811: by Create 2812: [THEN] 2813: 2814: Builder AVariable 2815: T has? rom H [IF] 2816: Build: ( -- ) T here 0 A, H switchram T align here swap ! 0 A, H ( switchrom ) ;Build 2817: by (Constant) 2818: [ELSE] 2819: Build: T 0 A, H ;Build 2820: by Create 2821: [THEN] 2822: 2823: \ User variables 04may94py 2824: 2825: : tup@ user-region >rstart @ ; 2826: 2827: \ Variable tup 0 tup ! 2828: \ Variable tudp 0 tudp ! 2829: 2830: : u, ( n -- udp ) 2831: current-region >r user-region activate 2832: X here swap X , tup@ - 2833: r> activate ; 2834: 2835: : au, ( n -- udp ) 2836: current-region >r user-region activate 2837: X here swap X a, tup@ - 2838: r> activate ; 2839: 2840: T has? no-userspace H [IF] 2841: 2842: : buildby 2843: ghost >exec @ built >exec ! ; 2844: 2845: Builder User 2846: buildby Variable 2847: by Variable 2848: 2849: Builder 2User 2850: buildby 2Variable 2851: by 2Variable 2852: 2853: Builder AUser 2854: buildby AVariable 2855: by AVariable 2856: 2857: [ELSE] 2858: 2859: Builder User 2860: Build: 0 u, X , ;Build 2861: by: :douser ( ghost -- up-addr ) X @ tup@ + ;DO 2862: 2863: Builder 2User 2864: Build: 0 u, X , 0 u, drop ;Build 2865: by User 2866: 2867: Builder AUser 2868: Build: 0 au, X , ;Build 2869: by User 2870: 2871: [THEN] 2872: 2873: T has? rom H [IF] 2874: Builder (Value) 2875: Build: ( n -- ) ;Build 2876: by: :dovalue ( target-body-addr -- n ) T @ @ H ;DO 2877: 2878: Builder Value 2879: Build: T here 0 A, H switchram T align here swap ! , H ;Build 2880: by (Value) 2881: 2882: Builder AValue 2883: Build: T here 0 A, H switchram T align here swap ! A, H ;Build 2884: by (Value) 2885: [ELSE] 2886: Builder (Value) 2887: Build: ( n -- ) ;Build 2888: by: :dovalue ( target-body-addr -- n ) T @ H ;DO 2889: 2890: Builder Value 2891: BuildSmart: T , H ;Build 2892: by (Value) 2893: 2894: Builder AValue 2895: BuildSmart: T A, H ;Build 2896: by (Value) 2897: [THEN] 2898: 2899: Defer texecute 2900: 2901: Builder Defer 2902: T has? rom H [IF] 2903: Build: ( -- ) T here 0 A, H switchram T align here swap ! H [T'] noop T A, H ( switchrom ) ;Build 2904: by: :dodefer ( ghost -- ) X @ X @ texecute ;DO 2905: [ELSE] 2906: BuildSmart: ( -- ) [T'] noop T A, H ;Build 2907: by: :dodefer ( ghost -- ) X @ texecute ;DO 2908: [THEN] 2909: 2910: Builder interpret/compile: 2911: Build: ( inter comp -- ) swap T A, A, H ;Build-immediate 2912: DO: ( ghost -- ) ABORT" CROSS: Don't execute" ;DO 2913: 2914: \ Sturctures 23feb95py 2915: 2916: : nalign ( addr1 n -- addr2 ) 2917: \ addr2 is the aligned version of addr1 wrt the alignment size n 2918: 1- tuck + swap invert and ; 2919: 2920: 2921: Builder (Field) 2922: Build: ;Build 2923: by: :dofield T @ H + ;DO 2924: 2925: Builder Field 2926: Build: ( align1 offset1 align size "name" -- align2 offset2 ) 2927: rot dup T , H ( align1 align size offset1 ) 2928: + >r nalign r> ;Build 2929: by (Field) 2930: 2931: >TARGET 2932: : struct T 1 chars 0 H ; 2933: : end-struct T 2Constant H ; 2934: 2935: : cell% ( n -- size align ) 2936: T 1 cells H dup ; 2937: >CROSS 2938: 2939: \ Input-Methods 01py 2940: 2941: Builder input-method 2942: Build: ( m v -- m' v ) dup T , cell+ H ;Build 2943: DO: abort" Not in cross mode" ;DO 2944: 2945: Builder input-var 2946: Build: ( m v size -- m v' ) over T , H + ;Build 2947: DO: abort" Not in cross mode" ;DO 2948: 2949: \ Peephole optimization 05sep01jaw 2950: 2951: \ this section defines different compilation 2952: \ actions for created words 2953: \ this will help the peephole optimizer 2954: \ I (jaw) took this from bernds latest cross-compiler 2955: \ changes but seperated it from the original 2956: \ Builder words. The final plan is to put this 2957: \ into a seperate file, together with the peephole 2958: \ optimizer for cross 2959: 2960: 2961: T has? peephole H [IF] 2962: 2963: \ .( loading peephole optimization) cr 2964: 2965: >CROSS 2966: 2967: : (callc) compile call T >body a, H ; ' (callc) plugin-of colon, 2968: : (callcm) T here 0 a, 0 a, H ; ' (callcm) plugin-of colonmark, 2969: : (call-res) >tempdp resolved gexecute tempdp> drop ; 2970: ' (call-res) plugin-of colon-resolve 2971: : (pprim) dup 0< IF $4000 - ELSE 2972: cr ." wrong usage of (prim) " 2973: dup gdiscover IF .ghost ELSE . THEN cr -1 throw THEN 2974: T a, H ; ' (pprim) plugin-of prim, 2975: 2976: \ if we want this, we have to spilt aconstant 2977: \ and constant!! 2978: \ Builder (Constant) 2979: \ compile: g>body X @ lit, ;compile 2980: 2981: Builder (Constant) 2982: compile: g>body compile lit@ T a, H ;compile 2983: 2984: Builder (Value) 2985: compile: g>body compile lit@ T a, H ;compile 2986: 2987: \ this changes also Variable, AVariable and 2Variable 2988: Builder Create 2989: compile: g>body alit, ;compile 2990: 2991: Builder User 2992: compile: g>body compile useraddr T @ , H ;compile 2993: 2994: Builder Defer 2995: compile: g>body compile lit-perform T A, H ;compile 2996: 2997: Builder (Field) 2998: compile: g>body T @ H compile lit+ T , H ;compile 2999: 3000: Builder interpret/compile: 3001: compile: does-resolved ;compile 3002: 3003: Builder input-method 3004: compile: does-resolved ;compile 3005: 3006: Builder input-var 3007: compile: does-resolved ;compile 3008: 3009: [THEN] 3010: 3011: \ structural conditionals 17dec92py 3012: 3013: >CROSS 3014: : (ncontrols?) ( n -- ) 3015: \g We expect n open control structures 3016: depth over u<= 3017: ABORT" CROSS: unstructured, stack underflow" 3018: 0 ?DO I pick 0= 3019: ABORT" CROSS: unstructured" 3020: LOOP ; ' (ncontrols?) plugin-of ncontrols? 3021: 3022: \ : ?struc ( flag -- ) ABORT" CROSS: unstructured " ; 3023: \ : sys? ( sys -- sys ) dup 0= ?struc ; 3024: 3025: : >mark ( -- sys ) T here ( dup ." M" hex. ) 0 , H ; 3026: 3027: X has? abranch [IF] 3028: : branchoffset ( src dest -- ) drop ; 3029: : offset, ( n -- ) X A, ; 3030: [ELSE] 3031: : branchoffset ( src dest -- ) - tchar / ; \ ?? jaw 3032: : offset, ( n -- ) X , ; 3033: [THEN] 3034: 3035: :noname compile branch X here branchoffset offset, ; 3036: IS branch, ( target-addr -- ) 3037: :noname compile ?branch X here branchoffset offset, ; 3038: IS ?branch, ( target-addr -- ) 3039: :noname compile branch T here 0 H offset, ; 3040: IS branchmark, ( -- branchtoken ) 3041: :noname compile ?branch T here 0 H offset, ; 3042: IS ?branchmark, ( -- branchtoken ) 3043: :noname T here 0 H offset, ; 3044: IS ?domark, ( -- branchtoken ) 3045: :noname dup X @ ?struc X here over branchoffset swap X ! ; 3046: IS branchtoresolve, ( branchtoken -- ) 3047: :noname branchto, X here ; 3048: IS branchtomark, ( -- target-addr ) 3049: 3050: >TARGET 3051: 3052: \ Structural Conditionals 12dec92py 3053: 3054: \ CLEANUP Cond: BUT sys? swap ;Cond 3055: \ CLEANUP Cond: YET sys? dup ;Cond 3056: 3057: >CROSS 3058: 3059: Variable tleavings 0 tleavings ! 3060: 3061: : (done) ( do-addr -- ) 3062: \G resolve branches of leave and ?leave and ?do 3063: \G do-addr is the address of the beginning of our 3064: \G loop so we can take care of nested loops 3065: tleavings @ 3066: BEGIN dup 3067: WHILE 3068: >r dup r@ cell+ @ \ address of branch 3069: u> 0= \ lower than DO? 3070: WHILE 3071: r@ 2 cells + @ \ branch token 3072: branchtoresolve, 3073: r@ @ r> free throw 3074: REPEAT r> THEN 3075: tleavings ! drop ; 3076: 3077: >TARGET 3078: 3079: \ What for? ANS? JAW Cond: DONE ( addr -- ) (done) ;Cond 3080: 3081: >CROSS 3082: : (leave) ( branchtoken -- ) 3083: 3 cells allocate throw >r 3084: T here H r@ cell+ ! 3085: r@ 2 cells + ! 3086: tleavings @ r@ ! 3087: r> tleavings ! ; 3088: >TARGET 3089: 3090: : (leave,) ( -- ) 3091: branchmark, (leave) ; ' (leave,) plugin-of leave, 3092: 3093: : (?leave,) ( -- ) 3094: compile 0= ?branchmark, (leave) ; ' (?leave,) plugin-of ?leave, 3095: 3096: Cond: LEAVE leave, ;Cond 3097: Cond: ?LEAVE ?leave, ;Cond 3098: 3099: >CROSS 3100: \ !!JW ToDo : Move to general tools section 3101: 3102: : to1 ( x1 x2 xn n -- addr ) 3103: \G packs n stack elements in am allocated memory region 3104: dup dup 1+ cells allocate throw dup >r swap 1+ 3105: 0 DO tuck ! cell+ LOOP 3106: drop r> ; 3107: 3108: : 1to ( addr -- x1 x2 xn ) 3109: \G unpacks the elements saved by to1 3110: dup @ swap over cells + swap 3111: 0 DO dup @ swap 1 cells - LOOP 3112: free throw ; 3113: 3114: : loop] ( target-addr -- ) 3115: branchto, 3116: dup X here branchoffset offset, 3117: tcell - (done) ; 3118: 3119: : skiploop] ?dup IF branchto, branchtoresolve, THEN ; 3120: 3121: >TARGET 3122: 3123: \ Structural Conditionals 12dec92py 3124: 3125: : (cs-swap) ( x1 x2 -- x2 x1 ) 3126: swap ; ' (cs-swap) plugin-of cs-swap 3127: 3128: : (ahead,) branchmark, ; ' (ahead,) plugin-of ahead, 3129: 3130: : (if,) ?branchmark, ; ' (if,) plugin-of if, 3131: 3132: : (then,) branchto, branchtoresolve, ; ' (then,) plugin-of then, 3133: 3134: : (else,) ( ahead ) branchmark, 3135: swap 3136: ( then ) branchto, branchtoresolve, ; ' (else,) plugin-of else, 3137: 3138: : (begin,) branchtomark, ; ' (begin,) plugin-of begin, 3139: 3140: : (while,) ( if ) ?branchmark, 3141: swap ; ' (while,) plugin-of while, 3142: 3143: : (again,) branch, ; ' (again,) plugin-of again, 3144: 3145: : (until,) ?branch, ; ' (until,) plugin-of until, 3146: 3147: : (repeat,) ( again ) branch, 3148: ( then ) branchto, branchtoresolve, ; ' (repeat,) plugin-of repeat, 3149: 3150: : (case,) ( -- n ) 3151: 0 ; ' (case,) plugin-of case, 3152: 3153: : (of,) ( n -- x1 n ) 3154: 1+ >r 3155: compile over compile = 3156: if, compile drop r> ; ' (of,) plugin-of of, 3157: 3158: : (endof,) ( x1 n -- x2 n ) 3159: >r 1 ncontrols? else, r> ; ' (endof,) plugin-of endof, 3160: 3161: : (endcase,) ( x1 .. xn n -- ) 3162: compile drop 0 ?DO 1 ncontrols? then, LOOP ; ' (endcase,) plugin-of endcase, 3163: 3164: >TARGET 3165: Cond: AHEAD ahead, ;Cond 3166: Cond: IF if, ;Cond 3167: Cond: THEN 1 ncontrols? then, ;Cond 3168: Cond: ENDIF 1 ncontrols? then, ;Cond 3169: Cond: ELSE 1 ncontrols? else, ;Cond 3170: 3171: Cond: BEGIN begin, ;Cond 3172: Cond: WHILE 1 ncontrols? while, ;Cond 3173: Cond: AGAIN 1 ncontrols? again, ;Cond 3174: Cond: UNTIL 1 ncontrols? until, ;Cond 3175: Cond: REPEAT 2 ncontrols? repeat, ;Cond 3176: 3177: Cond: CASE case, ;Cond 3178: Cond: OF of, ;Cond 3179: Cond: ENDOF endof, ;Cond 3180: Cond: ENDCASE endcase, ;Cond 3181: 3182: \ Structural Conditionals 12dec92py 3183: 3184: : (do,) ( -- target-addr ) 3185: \ ?? i think 0 is too much! jaw 3186: 0 compile (do) 3187: branchtomark, 2 to1 ; ' (do,) plugin-of do, 3188: 3189: \ alternative for if no ?do 3190: \ : (do,) 3191: \ compile 2dup compile = compile IF 3192: \ compile 2drop compile ELSE 3193: \ compile (do) branchtomark, 2 to1 ; 3194: 3195: : (?do,) ( -- target-addr ) 3196: 0 compile (?do) ?domark, (leave) 3197: branchtomark, 2 to1 ; ' (?do,) plugin-of ?do, 3198: 3199: : (for,) ( -- target-addr ) 3200: compile (for) branchtomark, ; ' (for,) plugin-of for, 3201: 3202: : (loop,) ( target-addr -- ) 3203: 1to compile (loop) loop] 3204: compile unloop skiploop] ; ' (loop,) plugin-of loop, 3205: 3206: : (+loop,) ( target-addr -- ) 3207: 1to compile (+loop) loop] 3208: compile unloop skiploop] ; ' (+loop,) plugin-of +loop, 3209: 3210: : (next,) 3211: compile (next) loop] compile unloop ; ' (next,) plugin-of next, 3212: 3213: Cond: DO do, ;Cond 3214: Cond: ?DO ?do, ;Cond 3215: Cond: FOR for, ;Cond 3216: 3217: Cond: LOOP 1 ncontrols? loop, ;Cond 3218: Cond: +LOOP 1 ncontrols? +loop, ;Cond 3219: Cond: NEXT 1 ncontrols? next, ;Cond 3220: 3221: \ String words 23feb93py 3222: 3223: : ," [char] " parse ht-string, X align ; 3224: 3225: X has? control-rack [IF] 3226: Cond: ." compile (.") T ," H ;Cond 3227: Cond: S" compile (S") T ," H ;Cond 3228: Cond: C" compile (C") T ," H ;Cond 3229: Cond: ABORT" compile (ABORT") T ," H ;Cond 3230: [ELSE] 3231: Cond: ." '" parse tuck 2>r ahead, there 2r> ht-mem, X align 3232: >r then, r> compile ALiteral compile Literal compile type ;Cond 3233: Cond: S" '" parse tuck 2>r ahead, there 2r> ht-mem, X align 3234: >r then, r> compile ALiteral compile Literal ;Cond 3235: Cond: C" ahead, there [char] " parse ht-string, X align 3236: >r then, r> compile ALiteral ;Cond 3237: Cond: ABORT" if, ahead, there [char] " parse ht-string, X align 3238: >r then, r> compile ALiteral compile c(abort") then, ;Cond 3239: [THEN] 3240: 3241: X has? rom [IF] 3242: Cond: IS T ' >body @ H compile ALiteral compile ! ;Cond 3243: : IS T >address ' >body @ ! H ; 3244: Cond: TO T ' >body @ H compile ALiteral compile ! ;Cond 3245: : TO T ' >body @ ! H ; 3246: [ELSE] 3247: Cond: IS T ' >body H compile ALiteral compile ! ;Cond 3248: : IS T >address ' >body ! H ; 3249: Cond: TO T ' >body H compile ALiteral compile ! ;Cond 3250: : TO T ' >body ! H ; 3251: [THEN] 3252: 3253: Cond: defers T ' >body @ compile, H ;Cond 3254: 3255: \ LINKED ERR" ENV" 2ENV" 18may93jaw 3256: 3257: \ linked list primitive 3258: : linked X here over X @ X A, swap X ! ; 3259: : chained T linked A, H ; 3260: 3261: : err" s" ErrLink linked" evaluate T , H 3262: [char] " parse ht-string, X align ; 3263: 3264: : env" [char] " parse s" EnvLink linked" evaluate 3265: ht-string, X align X , ; 3266: 3267: : 2env" [char] " parse s" EnvLink linked" evaluate 3268: here >r ht-string, X align X , X , 3269: r> dup T c@ H 80 and swap T c! H ; 3270: 3271: \ compile must be last 22feb93py 3272: 3273: Cond: [compile] ( -- ) \ name 3274: \g For immediate words, works even if forward reference 3275: bl word gfind 0= ABORT" CROSS: Can't compile" 3276: (gexecute) ;Cond 3277: 3278: Cond: postpone ( -- ) \ name 3279: bl word gfind 0= ABORT" CROSS: Can't compile" 3280: dup >magic @ <fwd> = 3281: ABORT" CROSS: Can't postpone on forward declaration" 3282: dup >magic @ <imm> = 3283: IF (gexecute) 3284: ELSE >link @ alit, compile compile, THEN ;Cond 3285: 3286: \ save-cross 17mar93py 3287: 3288: hex 3289: 3290: >CROSS 3291: Create magic s" Gforth3x" here over allot swap move 3292: 3293: bigendian 1+ \ strangely, in magic big=0, little=1 3294: tcell 1 = 0 and or 3295: tcell 2 = 2 and or 3296: tcell 4 = 4 and or 3297: tcell 8 = 6 and or 3298: tchar 1 = 00 and or 3299: tchar 2 = 28 and or 3300: tchar 4 = 50 and or 3301: tchar 8 = 78 and or 3302: magic 7 + c! 3303: 3304: : save-cross ( "image-name" "binary-name" -- ) 3305: .regions \ s" ec" X $has? IF .regions THEN 3306: bl parse ." Saving to " 2dup type cr 3307: w/o bin create-file throw >r 3308: s" header" X $has? IF 3309: s" #! " r@ write-file throw 3310: bl parse r@ write-file throw 3311: s" --image-file" r@ write-file throw 3312: #lf r@ emit-file throw 3313: r@ dup file-position throw drop 8 mod 8 swap ( file-id limit index ) 3314: ?do 3315: bl over emit-file throw 3316: loop 3317: drop 3318: magic 8 r@ write-file throw \ write magic 3319: ELSE 3320: bl parse 2drop 3321: THEN 3322: >rom dictionary >rmem @ there 3323: s" rom" X $has? IF dictionary >rstart @ - THEN 3324: r@ write-file throw \ write image 3325: s" relocate" X $has? IF 3326: dictionary >rbm @ there 1- tcell>bit rshift 1+ 3327: r@ write-file throw \ write tags 3328: THEN 3329: r> close-file throw ; 3330: 3331: : save-region ( addr len -- ) 3332: bl parse w/o bin create-file throw >r 3333: swap >image swap r@ write-file throw 3334: r> close-file throw ; 3335: 3336: \ save-asm-region 29aug01jaw 3337: 3338: Variable name-ptr 3339: Create name-buf 200 chars allot 3340: : init-name-buf name-buf name-ptr ! ; 3341: : nb, name-ptr @ c! 1 chars name-ptr +! ; 3342: : $nb, ( adr len -- ) bounds ?DO I c@ nb, LOOP ; 3343: : @nb name-ptr @ name-buf tuck - ; 3344: 3345: \ stores a usefull string representation of the character 3346: \ in the name buffer 3347: : name-char, ( c -- ) 3348: dup 'a 'z 1+ within IF nb, EXIT THEN 3349: dup 'A 'Z 1+ within IF $20 + nb, EXIT THEN 3350: dup '0 '9 1+ within IF nb, EXIT THEN 3351: CASE '+ OF s" _PLUS" $nb, ENDOF 3352: '- OF s" _MINUS" $nb, ENDOF 3353: '* OF s" _STAR" $nb, ENDOF 3354: '/ OF s" _SLASH" $nb, ENDOF 3355: '' OF s" _TICK" $nb, ENDOF 3356: '( OF s" _OPAREN" $nb, ENDOF 3357: ') OF s" _CPAREN" $nb, ENDOF 3358: '[ OF s" _OBRACKET" $nb, ENDOF 3359: '] OF s" _CBRACKET" $nb, ENDOF 3360: '! OF s" _STORE" $nb, ENDOF 3361: '@ OF s" _FETCH" $nb, ENDOF 3362: '> OF s" _GREATER" $nb, ENDOF 3363: '< OF s" _LESS" $nb, ENDOF 3364: '= OF s" _EQUAL" $nb, ENDOF 3365: '# OF s" _HASH" $nb, ENDOF 3366: '? OF s" _QUEST" $nb, ENDOF 3367: ': OF s" _COL" $nb, ENDOF 3368: '; OF s" _SEMICOL" $nb, ENDOF 3369: ', OF s" _COMMA" $nb, ENDOF 3370: '. OF s" _DOT" $nb, ENDOF 3371: '" OF s" _DQUOT" $nb, ENDOF 3372: dup 3373: base @ >r hex s>d <# #s 'X hold '_ hold #> $nb, r> base ! 3374: ENDCASE ; 3375: 3376: : label-from-ghostname ( ghost -- addr len ) 3377: dup >ghostname init-name-buf 'L nb, bounds 3378: ?DO I c@ name-char, LOOP 3379: \ we add the address to a name to make in unique 3380: \ because one name may appear more then once 3381: \ there are names (e.g. boot) that may be reference from other 3382: \ assembler source files, so we declare them as unique 3383: \ and don't add the address suffix 3384: dup >ghost-flags @ <unique> and 0= 3385: IF s" __" $nb, >link @ base @ >r hex 0 <# #s 'L hold #> r> base ! $nb, 3386: ELSE drop 3387: THEN 3388: @nb ; 3389: 3390: \ FIXME why disabled?! 3391: : label-from-ghostnameXX ( ghost -- addr len ) 3392: \ same as (label-from-ghostname) but caches generated names 3393: dup >asm-name @ ?dup IF nip count EXIT THEN 3394: \ dup >r (label-from-ghostname) 2dup 3395: align here >r string, align 3396: r> r> >asm-name ! ; 3397: 3398: : primghostdiscover ( xt -- ghost true | xt false ) 3399: dup 0= IF false EXIT THEN 3400: >r last-prim-ghost 3401: BEGIN @ dup 3402: WHILE dup >asm-dummyaddr @ r@ = 3403: IF rdrop true EXIT THEN 3404: REPEAT 3405: drop r> false ; 3406: 3407: : gdiscover2 ( xt -- ghost true | xt false ) 3408: dup taddr>region 0= IF false EXIT THEN 3409: dup (>regiontype) @ dup 0= IF drop false EXIT THEN 3410: addr-xt-ghost @ dup 0= IF drop false EXIT THEN 3411: nip true ; 3412: \ dup >ghost-name @ IF nip true ELSE drop false THEN ; 3413: 3414: \ generates a label name for the target address 3415: : generate-label-name ( taddr -- addr len ) 3416: gdiscover2 3417: IF dup >magic @ <do:> = 3418: IF >asm-name @ count EXIT THEN 3419: label-from-ghostname 3420: ELSE 3421: primghostdiscover 3422: IF >asm-name @ count 3423: ELSE base @ >r hex 0 <# #s 'L hold #> r> base ! 3424: THEN 3425: THEN ; 3426: 3427: Variable outfile-fd 3428: 3429: : $out ( adr len -- ) outfile-fd @ write-file throw ; 3430: : nlout newline $out ; 3431: : .ux ( n -- ) 3432: base @ hex swap 0 <# #S #> $out base ! ; 3433: 3434: : save-asm-region-part-aligned ( taddr len -- 'taddr 'len ) 3435: dup cell/ 0 3436: ?DO nlout s" .word " $out over @relbit 3437: IF over X @ generate-label-name $out 3438: ELSE over X @ s" 0x0" $out .ux 3439: THEN 3440: tcell /string 3441: LOOP ; 3442: 3443: : print-bytes ( taddr len n -- taddr' len' ) 3444: over min dup 0> 3445: IF nlout s" .byte " $out 0 3446: ?DO I 0> IF s" , " $out THEN 3447: over X c@ s" 0x0" $out .ux 1 /string 3448: LOOP 3449: THEN ; 3450: 3451: : save-asm-region-part ( addr len -- ) 3452: over dup X aligned swap - ?dup 3453: IF print-bytes THEN 3454: save-asm-region-part-aligned 3455: dup dup X aligned swap - ?dup 3456: IF 2 pick @relbit ABORT" relocated field splitted" 3457: print-bytes 3458: THEN 3459: 2drop ; 3460: 3461: : print-label ( taddr -- ) 3462: nlout generate-label-name $out s" :" $out ; 3463: 3464: : snl-calc ( taddr taddr2 -- ) 3465: tuck over - ; 3466: 3467: : skip-nolables ( taddr -- taddr2 taddr len ) 3468: \G skips memory region where no lables are defined 3469: \G starting from taddr+1 3470: \G Labels will be introduced for each reference mark 3471: \G in addr-refs. 3472: \G This word deals with lables at byte addresses as well. 3473: \G The main idea is to have an intro part which 3474: \G skips until the next cell boundary, the middle part 3475: \G which skips whole cells very efficiently and the third 3476: \G part which skips the bytes to the label in a cell 3477: dup 1+ dup (>regiontype) 3478: ( S taddr taddr-realstart type-addr ) 3479: dup @ dup IF addr-refs @ THEN 3480: swap >r 3481: over align+ tuck tcell swap - rshift swap 0 3482: ?DO dup 1 and 3483: IF drop rdrop snl-calc UNLOOP EXIT THEN 3484: 2/ swap 1+ swap 3485: LOOP 3486: drop r> cell+ 3487: ( S .. taddr2 type-addr ) dup 3488: BEGIN dup @ dup IF addr-refs @ THEN 0= WHILE cell+ REPEAT 3489: dup >r swap - 1 cells / tcell * + r> 3490: ( S .. taddr2+skiplencells type-addr ) 3491: @ addr-refs @ 1 tcell lshift or 3492: BEGIN dup 1 and 0= WHILE swap 1+ swap 2/ REPEAT drop 3493: ( S .. taddr2+skiplencells+skiplenbytes ) 3494: snl-calc ; 3495: 3496: : insert-label ( taddr -- ) 3497: dup 0= IF drop EXIT THEN 3498: \ ignore everything which points outside our memory regions 3499: \ maybe a primitive pointer or whatever 3500: dup taddr>region 0= IF drop EXIT THEN 3501: dup >r (>regiontype) define-addr-struct addr-refs dup @ 3502: r> tcell 1- and 1 swap lshift or swap ! ; 3503: 3504: \ this generates a sorted list of addresses which must be labels 3505: \ it scans therefore a whole region 3506: : generate-label-list-region ( taddr len -- ) 3507: BEGIN over @relbit IF over X @ insert-label THEN 3508: tcell /string dup 0< 3509: UNTIL 2drop ; 3510: 3511: : generate-label-list ( -- ) 3512: region-link 3513: BEGIN @ dup WHILE 3514: dup 0 >rlink - extent 3515: ?dup IF generate-label-list-region ELSE drop THEN 3516: REPEAT drop ; 3517: 3518: : create-outfile ( addr len -- ) 3519: w/o bin create-file throw outfile-fd ! ; 3520: 3521: : close-outfile ( -- ) 3522: outfile-fd @ close-file throw ; 3523: 3524: : (save-asm-region) ( region -- ) 3525: \ ." label list..." 3526: generate-label-list 3527: \ ." ok!" cr 3528: extent ( S taddr len ) 3529: over insert-label 3530: 2dup + dup insert-label >r ( R end-label ) 3531: ( S taddr len ) drop 3532: BEGIN 3533: dup print-label 3534: dup r@ <> WHILE 3535: skip-nolables save-asm-region-part 3536: REPEAT drop rdrop ; 3537: 3538: : lineout ( addr len -- ) 3539: outfile-fd @ write-line throw ; 3540: 3541: : save-asm-region ( region adr len -- ) 3542: create-outfile (save-asm-region) close-outfile ; 3543: 3544: \ \ minimal definitions 3545: 3546: >MINIMAL also minimal 3547: 3548: \ Usefull words 13feb93py 3549: 3550: : KB 400 * ; 3551: 3552: \ \ [IF] [ELSE] [THEN] ... 14sep97jaw 3553: 3554: \ it is useful to define our own structures and not to rely 3555: \ on the words in the host system 3556: \ The words in the host system might be defined with vocabularies 3557: \ this doesn't work with our self-made compile-loop 3558: 3559: Create parsed 20 chars allot \ store word we parsed 3560: 3561: : upcase 3562: parsed count bounds 3563: ?DO I c@ toupper I c! LOOP ; 3564: 3565: : [ELSE] 3566: 1 BEGIN 3567: BEGIN bl word count dup WHILE 3568: comment? 20 umin parsed place upcase parsed count 3569: 2dup s" [IF]" str= >r 3570: 2dup s" [IFUNDEF]" str= >r 3571: 2dup s" [IFDEF]" str= r> or r> or 3572: IF 2drop 1+ 3573: ELSE 2dup s" [ELSE]" str= 3574: IF 2drop 1- dup 3575: IF 1+ 3576: THEN 3577: ELSE 3578: 2dup s" [ENDIF]" str= >r 3579: s" [THEN]" str= r> or 3580: IF 1- THEN 3581: THEN 3582: THEN 3583: ?dup 0= ?EXIT 3584: REPEAT 3585: 2drop refill 0= 3586: UNTIL drop ; immediate 3587: 3588: : [THEN] ( -- ) ; immediate 3589: 3590: : [ENDIF] ( -- ) ; immediate 3591: 3592: : [IF] ( flag -- ) 3593: 0= IF postpone [ELSE] THEN ; immediate 3594: 3595: Cond: [IF] postpone [IF] ;Cond 3596: Cond: [THEN] postpone [THEN] ;Cond 3597: Cond: [ELSE] postpone [ELSE] ;Cond 3598: 3599: \ define new [IFDEF] and [IFUNDEF] 20may93jaw 3600: 3601: : defined? tdefined? ; 3602: : needed? needed? ; 3603: : doer? doer? ; 3604: 3605: \ we want to use IFDEF on compiler directives (e.g. E?) in the source, too 3606: 3607: : directive? 3608: bl word count [ ' target >wordlist ] literal search-wordlist 3609: dup IF nip THEN ; 3610: 3611: : [IFDEF] >in @ directive? swap >in ! 3612: 0= IF tdefined? ELSE name 2drop true THEN 3613: postpone [IF] ; 3614: 3615: : [IFUNDEF] tdefined? 0= postpone [IF] ; 3616: 3617: Cond: [IFDEF] postpone [IFDEF] ;Cond 3618: 3619: Cond: [IFUNDEF] postpone [IFUNDEF] ;Cond 3620: 3621: \ C: \- \+ Conditional Compiling 09jun93jaw 3622: 3623: : C: >in @ tdefined? 0= 3624: IF >in ! X : 3625: ELSE drop 3626: BEGIN bl word dup c@ 3627: IF count comment? s" ;" str= ?EXIT 3628: ELSE refill 0= ABORT" CROSS: Out of Input while C:" 3629: THEN 3630: AGAIN 3631: THEN ; 3632: 3633: : d? d? ; 3634: 3635: : \D ( -- "debugswitch" ) 3636: \G doesn't skip line when debug switch is on 3637: D? 0= IF postpone \ THEN ; 3638: 3639: : \- ( -- "wordname" ) 3640: \G interprets the line if word is not defined 3641: tdefined? IF postpone \ THEN ; 3642: 3643: : \+ ( -- "wordname" ) 3644: \G interprets the line if word is defined 3645: tdefined? 0= IF postpone \ THEN ; 3646: 3647: : \? ( -- "envorinstring" ) 3648: \G Skip line if environmental variable evaluates to false 3649: X has? 0= IF postpone \ THEN ; 3650: 3651: Cond: \- \- ;Cond 3652: Cond: \+ \+ ;Cond 3653: Cond: \D \D ;Cond 3654: Cond: \? \? ;Cond 3655: 3656: : ?? bl word find IF execute ELSE drop 0 THEN ; 3657: 3658: : needed: 3659: \G defines ghost for words that we want to be compiled 3660: BEGIN >in @ bl word c@ WHILE >in ! Ghost drop REPEAT drop ; 3661: 3662: \ words that should be in minimal 3663: 3664: create s-buffer 50 chars allot 3665: 3666: bigendian Constant bigendian 3667: 3668: : here there ; 3669: : equ constant ; 3670: : mark there constant ; 3671: 3672: \ compiler directives 3673: : >ram >ram ; 3674: : >rom >rom ; 3675: : >auto >auto ; 3676: : >tempdp >tempdp ; 3677: : tempdp> tempdp> ; 3678: : const constflag on ; 3679: 3680: : Redefinitions-start 3681: \G Starts a redefinition section. Warnings are disabled and 3682: \G existing ghosts are reused. This is used in the kernel 3683: \G where ( and \ and the like are redefined 3684: twarnings off warnings off reuse-ghosts on ; 3685: 3686: : Redefinitions-end 3687: \G Ends a redefinition section. Warnings are enabled again. 3688: twarnings on warnings on reuse-ghosts off ; 3689: 3690: : warnings name 3 = 3691: IF twarnings off warnings off ELSE twarnings on warnings on THEN drop ; 3692: 3693: : | ; 3694: \ : | NoHeaderFlag on ; \ This is broken (damages the last word) 3695: 3696: : save-cross save-cross ; 3697: : save-region save-region ; 3698: : tdump swap >image swap dump ; 3699: 3700: also forth 3701: [IFDEF] Label : Label defempty? Label ; [THEN] 3702: [IFDEF] start-macros : start-macros defempty? start-macros ; [THEN] 3703: \ [IFDEF] builttag : builttag builttag ; [THEN] 3704: previous 3705: 3706: : s" [char] " parse s-buffer place s-buffer count ; \ for environment? 3707: : + + ; 3708: : 1+ 1 + ; 3709: : 2+ 2 + ; 3710: : 1- 1- ; 3711: : - - ; 3712: : and and ; 3713: : or or ; 3714: : 2* 2* ; 3715: : * * ; 3716: : / / ; 3717: : dup dup ; 3718: : ?dup ?dup ; 3719: : over over ; 3720: : swap swap ; 3721: : rot rot ; 3722: : drop drop ; 3723: : 2drop 2drop ; 3724: : = = ; 3725: : <> <> ; 3726: : 0= 0= ; 3727: : lshift lshift ; 3728: : 2/ 2/ ; 3729: : hex. base @ $10 base ! swap . base ! ; 3730: : invert invert ; 3731: \ : . . ; 3732: 3733: : all-words ['] forced? IS skip? ; 3734: : needed-words ['] needed? IS skip? ; 3735: : undef-words ['] defined2? IS skip? ; 3736: : skipdef skipdef ; 3737: 3738: : \ postpone \ ; immediate 3739: : \G T-\G ; immediate 3740: : ( postpone ( ; immediate 3741: : include bl word count included ; 3742: : included swap >image swap included ; 3743: : require require ; 3744: : needs require ; 3745: : .( [char] ) parse type ; 3746: : ERROR" [char] " parse 3747: rot 3748: IF cr ." *** " type ." ***" -1 ABORT" CROSS: Target error, see text above" 3749: ELSE 2drop 3750: THEN ; 3751: : ." [char] " parse type ; 3752: : cr cr ; 3753: 3754: : times 0 ?DO dup X c, LOOP drop ; \ used for space table creation 3755: 3756: \ only forth also cross also minimal definitions order 3757: 3758: \ cross-compiler words 3759: 3760: : decimal decimal [g'] decimal >exec2 @ ?dup IF EXECUTE THEN ; 3761: : hex hex [g'] hex >exec2 @ ?dup IF EXECUTE THEN ; 3762: 3763: \ : tudp X tudp ; 3764: \ : tup X tup ; 3765: 3766: : doc-off false to-doc ! ; 3767: : doc-on true to-doc ! ; 3768: 3769: : declareunique ( "name" -- ) 3770: \ Sets the unique flag for a ghost. The assembler output 3771: \ generates labels with the ghostname concatenated with the address 3772: \ while cross-compiling. The address is concatenated 3773: \ because we have double occurences of the same name. 3774: \ If we want to reference the labels from the assembler or C 3775: \ code we declare them unique, so the address is skipped. 3776: Ghost >ghost-flags dup @ <unique> or swap ! ; 3777: 3778: \ [IFDEF] dbg : dbg dbg ; [THEN] 3779: 3780: \ for debugging... 3781: \ : dbg dbg ; 3782: : horder order ; 3783: : hwords words ; 3784: \ : words also ghosts 3785: \ words previous ; 3786: : .s .s ; 3787: : depth depth ; 3788: : bye bye ; 3789: 3790: \ dummy 3791: 3792: \ turnkey direction 3793: : H forth ; immediate 3794: : T minimal ; immediate 3795: : G ghosts ; immediate 3796: 3797: 3798: \ these ones are pefered: 3799: 3800: : unlock previous forth also cross ; 3801: 3802: \ also minimal 3803: >cross 3804: 3805: : turnkey 3806: ghosts-wordlist 1 set-order 3807: also target definitions 3808: also Minimal also ; 3809: 3810: >minimal 3811: 3812: : [[+++ 3813: turnkey unlock ; 3814: 3815: unlock definitions also minimal 3816: 3817: : lock turnkey ; 3818: 3819: Defer +++]]-hook 3820: : +++]] +++]]-hook lock ; 3821: 3822: LOCK 3823: \ load cross compiler extension defined in mach file 3824: 3825: UNLOCK >CROSS 3826: 3827: [IFDEF] extend-cross extend-cross [THEN] 3828: 3829: LOCK