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File: [gforth] / gforth / cross.fs
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Mon Dec 31 17:34:58 2007 UTC (16 years, 3 months ago) by anton
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updated copyright years

1: \ CROSS.FS The Cross-Compiler 06oct92py 2: \ Idea and implementation: Bernd Paysan (py) 3: 4: \ Copyright (C) 1995,1996,1997,1998,1999,2000,2003,2004,2005,2006,2007 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 primcentric 1179: false DefaultValue abranch 1180: true DefaultValue f83headerstring 1181: true DefaultValue control-rack 1182: [THEN] 1183: 1184: true DefaultValue gforthcross 1185: true DefaultValue interpreter 1186: true DefaultValue ITC 1187: false DefaultValue rom 1188: false DefaultValue flash 1189: true DefaultValue standardthreading 1190: 1191: \ ANSForth environment stuff 1192: 8 DefaultValue ADDRESS-UNIT-BITS 1193: 255 DefaultValue MAX-CHAR 1194: 255 DefaultValue /COUNTED-STRING 1195: 1196: >TARGET 1197: s" relocate" T environment? H 1198: \ JAW why set NIL to this?! 1199: [IF] drop \ SetValue NIL 1200: [ELSE] >ENVIRON X NIL SetValue relocate 1201: [THEN] 1202: >TARGET 1203: 1204: 0 Constant NIL 1205: 1206: >CROSS 1207: 1208: \ \ Create additional parameters 19jan95py 1209: 1210: \ currently cross only works for host machines with address-unit-bits 1211: \ eual to 8 because of s! and sc! 1212: \ but I start to query the environment just to modularize a little bit 1213: 1214: : check-address-unit-bits ( -- ) 1215: \ s" ADDRESS-UNIT-BITS" environment? 1216: \ IF 8 <> ELSE true THEN 1217: \ ABORT" ADDRESS-UNIT-BITS unknown or not equal to 8!" 1218: 1219: \ shit, this doesn't work because environment? is only defined for 1220: \ gforth.fi and not kernl???.fi 1221: ; 1222: 1223: check-address-unit-bits 1224: 8 Constant bits/byte \ we define: byte is address-unit 1225: 1226: 1 bits/byte lshift Constant maxbyte 1227: \ this sets byte size for the target machine, (probably right guess) jaw 1228: 1229: T 1230: NIL Constant TNIL 1231: cell Constant tcell 1232: cell<< Constant tcell<< 1233: cell>bit Constant tcell>bit 1234: bits/char Constant tbits/char 1235: bits/char H bits/byte T / 1236: Constant tchar 1237: float Constant tfloat 1238: 1 bits/char lshift Constant tmaxchar 1239: [IFUNDEF] bits/byte 1240: 8 Constant tbits/byte 1241: [ELSE] 1242: bits/byte Constant tbits/byte 1243: [THEN] 1244: H 1245: tbits/char bits/byte / Constant tbyte 1246: 1247: : >signed ( u -- n ) 1248: 1 tbits/char tcell * 1- lshift 2dup and 1249: IF negate or ELSE drop THEN ; 1250: 1251: \ Variables 06oct92py 1252: 1253: Variable (tlast) 1254: (tlast) Value tlast TNIL tlast ! \ Last name field 1255: Variable tlastcfa \ Last code field 1256: 1257: \ statistics 10jun97jaw 1258: 1259: Variable headers-named 0 headers-named ! 1260: Variable user-vars 0 user-vars ! 1261: 1262: : target>bitmask-size ( u1 -- u2 ) 1263: 1- tcell>bit rshift 1+ ; 1264: 1265: : allocatetarget ( size -- adr ) 1266: dup allocate ABORT" CROSS: No memory for target" 1267: swap over swap erase ; 1268: 1269: \ \ memregion.fs 1270: 1271: 1272: Variable last-defined-region \ pointer to last defined region 1273: Variable region-link \ linked list with all regions 1274: Variable mirrored-link \ linked list for mirrored regions 1275: 0 dup mirrored-link ! region-link ! 1276: 1277: : >rname 9 cells + ; 1278: : >rtouch 8 cells + ; \ executed when region is accessed 1279: : >rbm 4 cells + ; \ bitfield per cell witch indicates relocation 1280: : >rmem 5 cells + ; 1281: : >rtype 6 cells + ; \ field per cell witch points to a type struct 1282: : >rrom 7 cells + ; \ a -1 indicates that this region is rom 1283: : >rlink 3 cells + ; 1284: : >rdp 2 cells + ; 1285: : >rlen cell+ ; 1286: : >rstart ; 1287: 1288: : (region) ( addr len region -- ) 1289: \G change startaddress and length of an existing region 1290: >r r@ last-defined-region ! 1291: r@ >rlen ! dup r@ >rstart ! r> >rdp ! ; 1292: 1293: : uninitialized -1 ABORT" CROSS: Region is uninitialized" ; 1294: 1295: : region ( addr len -- "name" ) 1296: \G create a new region 1297: \ check whether predefined region exists 1298: save-input bl word find >r >r restore-input throw r> r> 0= 1299: IF \ make region 1300: drop 1301: save-input create restore-input throw 1302: here last-defined-region ! 1303: over ( startaddr ) , ( length ) , ( dp ) , 1304: region-link linked 0 , 0 , 0 , 0 , 1305: ['] uninitialized , 1306: bl word count string, 1307: ELSE \ store new parameters in region 1308: bl word drop 1309: >body (region) 1310: THEN ; 1311: 1312: : borders ( region -- startaddr endaddr ) 1313: \G returns lower and upper region border 1314: dup >rstart @ swap >rlen @ over + ; 1315: 1316: : extent ( region -- startaddr len ) 1317: \G returns the really used area 1318: dup >rstart @ swap >rdp @ over - ; 1319: 1320: : area ( region -- startaddr totallen ) 1321: \G returns the total area 1322: dup >rstart @ swap >rlen @ ; 1323: 1324: : dp@ ( region -- dp ) 1325: >rdp @ ; 1326: 1327: : mirrored ( -- ) 1328: \G mark last defined region as mirrored 1329: mirrored-link 1330: align linked last-defined-region @ , ; 1331: 1332: : writeprotected 1333: \G mark a region as write protected 1334: -1 last-defined-region @ >rrom ! ; 1335: 1336: : .addr ( u -- ) 1337: \G prints a 16 or 32 Bit nice hex value 1338: base @ >r hex 1339: tcell 2 u> 1340: IF s>d <# # # # # [char] . hold # # # # #> type 1341: ELSE s>d <# # # # # # #> type 1342: THEN r> base ! space ; 1343: 1344: : .regions \G display region statistic 1345: 1346: \ we want to list the regions in the right order 1347: \ so first collect all regions on stack 1348: 0 region-link @ 1349: BEGIN dup WHILE dup @ REPEAT drop 1350: BEGIN dup 1351: WHILE cr 1352: 0 >rlink - >r 1353: r@ >rname count tuck type 1354: 12 swap - 0 max spaces space 1355: ." Start: " r@ >rstart @ dup .addr space 1356: ." End: " r@ >rlen @ + .addr space 1357: ." DP: " r> >rdp @ .addr 1358: REPEAT drop 1359: s" rom" T $has? H 0= ?EXIT 1360: cr ." Mirrored:" 1361: mirrored-link @ 1362: BEGIN dup 1363: WHILE space dup cell+ @ >rname count type @ 1364: REPEAT drop cr 1365: ; 1366: 1367: \ -------- predefined regions 1368: 1369: 0 0 region address-space 1370: \ total memory addressed and used by the target system 1371: 1372: 0 0 region user-region 1373: \ data for user variables goes here 1374: \ this has to be defined before dictionary or ram-dictionary 1375: 1376: 0 0 region dictionary 1377: \ rom area for the compiler 1378: 1379: T has? rom H 1380: [IF] 1381: 0 0 region ram-dictionary mirrored 1382: \ ram area for the compiler 1383: [ELSE] 1384: ' dictionary ALIAS ram-dictionary 1385: [THEN] 1386: 1387: 0 0 region return-stack 1388: 1389: 0 0 region data-stack 1390: 1391: 0 0 region tib-region 1392: 1393: ' dictionary ALIAS rom-dictionary 1394: 1395: : setup-region ( region -- ) 1396: >r 1397: \ allocate mem 1398: r@ >rlen @ allocatetarget 1399: r@ >rmem ! 1400: 1401: r@ >rlen @ 1402: target>bitmask-size allocatetarget 1403: r@ >rbm ! 1404: 1405: r@ >rlen @ 1406: tcell / 1+ cells allocatetarget r@ >rtype ! 1407: 1408: ['] noop r@ >rtouch ! 1409: rdrop ; 1410: 1411: : setup-target ( -- ) \G initialize target's memory space 1412: s" rom" T $has? H 1413: IF \ check for ram and rom... 1414: \ address-space area nip 0<> 1415: ram-dictionary area nip 0<> 1416: rom-dictionary area nip 0<> 1417: and 0= 1418: ABORT" CROSS: define address-space, rom- , ram-dictionary, with rom-support!" 1419: THEN 1420: address-space area nip 1421: IF 1422: address-space area 1423: ELSE 1424: dictionary area 1425: THEN 1426: nip 0= 1427: ABORT" CROSS: define at least address-space or dictionary!!" 1428: 1429: \ allocate target for each region 1430: region-link 1431: BEGIN @ dup 1432: WHILE dup 1433: 0 >rlink - >r 1434: r@ >rlen @ 1435: IF r@ setup-region 1436: THEN rdrop 1437: REPEAT drop ; 1438: 1439: \ MakeKernel 22feb99jaw 1440: 1441: : makekernel ( start targetsize -- ) 1442: \G convenience word to setup the memory of the target 1443: \G used by main.fs of the c-engine based systems 1444: dictionary (region) setup-target ; 1445: 1446: >MINIMAL 1447: : makekernel makekernel ; 1448: >CROSS 1449: 1450: \ \ switched tdp for rom support 03jun97jaw 1451: 1452: \ second value is here to store some maximal value for statistics 1453: \ tempdp is also embedded here but has nothing to do with rom support 1454: \ (needs switched dp) 1455: 1456: variable tempdp 0 , \ temporary dp for resolving 1457: variable tempdp-save 1458: 1459: 0 [IF] 1460: variable romdp 0 , \ Dictionary-Pointer for ramarea 1461: variable ramdp 0 , \ Dictionary-Pointer for romarea 1462: 1463: \ 1464: variable sramdp \ start of ram-area for forth 1465: variable sromdp \ start of rom-area for forth 1466: 1467: [THEN] 1468: 1469: 0 Value current-region 1470: 0 Value tdp 1471: Variable fixed \ flag: true: no automatic switching 1472: \ false: switching is done automatically 1473: 1474: \ Switch-Policy: 1475: \ 1476: \ a header is always compiled into rom 1477: \ after a created word (create and variable) compilation goes to ram 1478: \ 1479: \ Be careful: If you want to make the data behind create into rom 1480: \ you have to put >rom before create! 1481: 1482: variable constflag constflag off 1483: 1484: : activate ( region -- ) 1485: \G next code goes to this region 1486: dup to current-region >rdp to tdp ; 1487: 1488: : (switchram) 1489: fixed @ ?EXIT s" rom" T $has? H 0= ?EXIT 1490: ram-dictionary activate ; 1491: 1492: : switchram 1493: constflag @ 1494: IF constflag off ELSE (switchram) THEN ; 1495: 1496: : switchrom 1497: fixed @ ?EXIT rom-dictionary activate ; 1498: 1499: : >tempdp ( addr -- ) 1500: tdp tempdp-save ! tempdp to tdp tdp ! ; 1501: : tempdp> ( -- ) 1502: tempdp-save @ to tdp ; 1503: 1504: : >ram fixed off (switchram) fixed on ; 1505: : >rom fixed off switchrom fixed on ; 1506: : >auto fixed off switchrom ; 1507: 1508: 1509: 1510: \ : romstart dup sromdp ! romdp ! ; 1511: \ : ramstart dup sramdp ! ramdp ! ; 1512: 1513: \ default compilation goes to rom 1514: \ when romable support is off, only the rom switch is used (!!) 1515: >auto 1516: 1517: : there tdp @ ; 1518: 1519: >TARGET 1520: 1521: \ \ Target Memory Handling 1522: 1523: \ Byte ordering and cell size 06oct92py 1524: 1525: : cell+ tcell + ; 1526: : cells tcell<< lshift ; 1527: : chars tchar * ; 1528: : char+ tchar + ; 1529: : floats tfloat * ; 1530: 1531: >CROSS 1532: : cell/ tcell<< rshift ; 1533: >TARGET 1534: 20 CONSTANT bl 1535: \ TNIL Constant NIL 1536: 1537: >CROSS 1538: 1539: bigendian 1540: [IF] 1541: : DS! ( d addr -- ) tcell bounds swap 1- 1542: DO maxbyte ud/mod rot I c! -1 +LOOP 2drop ; 1543: : DS@ ( addr -- d ) >r 0 0 r> tcell bounds 1544: DO maxbyte * swap maxbyte um* rot + swap I c@ + swap LOOP ; 1545: : Sc! ( n addr -- ) >r s>d r> tchar bounds swap 1- 1546: DO maxbyte ud/mod rot I c! -1 +LOOP 2drop ; 1547: : Sc@ ( addr -- n ) >r 0 0 r> tchar bounds 1548: DO maxbyte * swap maxbyte um* rot + swap I c@ + swap LOOP d>s ; 1549: [ELSE] 1550: : DS! ( d addr -- ) tcell bounds 1551: DO maxbyte ud/mod rot I c! LOOP 2drop ; 1552: : DS@ ( addr -- n ) >r 0 0 r> tcell bounds swap 1- 1553: DO maxbyte * swap maxbyte um* rot + swap I c@ + swap -1 +LOOP ; 1554: : Sc! ( n addr -- ) >r s>d r> tchar bounds 1555: DO maxbyte ud/mod rot I c! LOOP 2drop ; 1556: : Sc@ ( addr -- n ) >r 0 0 r> tchar bounds swap 1- 1557: DO maxbyte * swap maxbyte um* rot + swap I c@ + swap -1 +LOOP d>s ; 1558: [THEN] 1559: 1560: : S! ( n addr -- ) >r s>d r> DS! ; 1561: : S@ ( addr -- n ) DS@ d>s ; 1562: 1563: : taddr>region ( taddr -- region | 0 ) 1564: \G finds for a target-address the correct region 1565: \G returns 0 if taddr is not in range of a target memory region 1566: region-link 1567: BEGIN @ dup 1568: WHILE dup >r 1569: 0 >rlink - >r 1570: r@ >rlen @ 1571: IF dup r@ borders within 1572: IF r> r> drop nip 1573: dup >rtouch @ EXECUTE EXIT 1574: THEN 1575: THEN 1576: r> drop 1577: r> 1578: REPEAT 1579: 2drop 0 ; 1580: 1581: : taddr>region-abort ( taddr -- region | 0 ) 1582: \G Same as taddr>region but aborts if taddr is not 1583: \G a valid address in the target address space 1584: dup taddr>region dup 0= 1585: IF drop cr ." Wrong address: " .addr 1586: -1 ABORT" Address out of range!" 1587: THEN nip ; 1588: 1589: : (>regionimage) ( taddr -- 'taddr ) 1590: dup 1591: \ find region we want to address 1592: taddr>region-abort 1593: >r 1594: \ calculate offset in region 1595: r@ >rstart @ - 1596: \ add regions real address in our memory 1597: r> >rmem @ + ; 1598: 1599: : (>regionramimage) ( taddr -- 'taddr ) 1600: \G same as (>regionimage) but aborts if the region is rom 1601: dup 1602: \ find region we want to address 1603: taddr>region-abort 1604: >r 1605: r@ >rrom @ ABORT" CROSS: region is write-protected!" 1606: \ calculate offset in region 1607: r@ >rstart @ - 1608: \ add regions real address in our memory 1609: r> >rmem @ + ; 1610: 1611: : (>regionbm) ( taddr -- 'taddr bitmaskbaseaddr ) 1612: dup 1613: \ find region we want to address 1614: taddr>region-abort 1615: >r 1616: \ calculate offset in region 1617: r@ >rstart @ - 1618: \ add regions real address in our memory 1619: r> >rbm @ ; 1620: 1621: : (>regiontype) ( taddr -- 'taddr ) 1622: dup 1623: \ find region we want to address 1624: taddr>region-abort 1625: >r 1626: \ calculate offset in region 1627: r@ >rstart @ - tcell / cells 1628: \ add regions real address in our memory 1629: r> >rtype @ + ; 1630: 1631: \ Bit string manipulation 06oct92py 1632: \ 9may93jaw 1633: CREATE Bittable 80 c, 40 c, 20 c, 10 c, 8 c, 4 c, 2 c, 1 c, 1634: : bits ( n -- n ) chars Bittable + c@ ; 1635: 1636: : >bit ( addr n -- c-addr mask ) 8 /mod rot + swap bits ; 1637: : +bit ( addr n -- ) >bit over c@ or swap c! ; 1638: : -bit ( addr n -- ) >bit invert over c@ and swap c! ; 1639: 1640: : @relbit ( taddr -- f ) (>regionbm) swap cell/ >bit swap c@ and ; 1641: 1642: : (relon) ( taddr -- ) 1643: [ [IFDEF] fd-relocation-table ] 1644: s" +" fd-relocation-table write-file throw 1645: dup s>d <# #s #> fd-relocation-table write-line throw 1646: [ [THEN] ] 1647: (>regionbm) swap cell/ +bit ; 1648: 1649: : (reloff) ( taddr -- ) 1650: [ [IFDEF] fd-relocation-table ] 1651: s" -" fd-relocation-table write-file throw 1652: dup s>d <# #s #> fd-relocation-table write-line throw 1653: [ [THEN] ] 1654: (>regionbm) swap cell/ -bit ; 1655: 1656: DEFER >image 1657: DEFER >ramimage 1658: DEFER relon 1659: DEFER reloff 1660: DEFER correcter 1661: 1662: T has? relocate H 1663: [IF] 1664: ' (relon) IS relon 1665: ' (reloff) IS reloff 1666: ' (>regionimage) IS >image 1667: ' (>regionimage) IS >ramimage 1668: [ELSE] 1669: ' drop IS relon 1670: ' drop IS reloff 1671: ' (>regionimage) IS >image 1672: ' (>regionimage) IS >ramimage 1673: [THEN] 1674: 1675: : enforce-writeprotection ( -- ) 1676: ['] (>regionramimage) IS >ramimage ; 1677: 1678: : relax-writeprotection ( -- ) 1679: ['] (>regionimage) IS >ramimage ; 1680: 1681: : writeprotection-relaxed? ( -- ) 1682: ['] >ramimage >body @ ['] (>regionimage) = ; 1683: 1684: \ Target memory access 06oct92py 1685: 1686: : align+ ( taddr -- rest ) 1687: tcell tuck 1- and - [ tcell 1- ] Literal and ; 1688: : cfalign+ ( taddr -- rest ) 1689: \ see kernel.fs:cfaligned 1690: /maxalign tuck 1- and - [ /maxalign 1- ] Literal and ; 1691: 1692: >TARGET 1693: : aligned ( taddr -- ta-addr ) dup align+ + ; 1694: \ assumes cell alignment granularity (as GNU C) 1695: 1696: : cfaligned ( taddr1 -- taddr2 ) 1697: \ see kernel.fs 1698: dup cfalign+ + ; 1699: 1700: : @ ( taddr -- w ) >image S@ ; 1701: : ! ( w taddr -- ) >ramimage S! ; 1702: : c@ ( taddr -- char ) >image Sc@ ; 1703: : c! ( char taddr -- ) >ramimage Sc! ; 1704: : 2@ ( taddr -- x1 x2 ) T dup cell+ @ swap @ H ; 1705: : 2! ( x1 x2 taddr -- ) T tuck ! cell+ ! H ; 1706: 1707: \ Target compilation primitives 06oct92py 1708: \ included A! 16may93jaw 1709: 1710: : here ( -- there ) there ; 1711: : allot ( n -- ) tdp +! ; 1712: : , ( w -- ) T here H tcell T allot ! H ; 1713: : c, ( char -- ) T here H tchar T allot c! H ; 1714: : align ( -- ) T here H align+ 0 ?DO bl T c, H tchar +LOOP ; 1715: : cfalign ( -- ) 1716: T here H cfalign+ 0 ?DO bl T c, H tchar +LOOP ; 1717: 1718: : >address dup 0>= IF tbyte / THEN ; \ ?? jaw 1719: : A! swap >address swap dup relon T ! H ; 1720: : A, ( w -- ) >address T here H relon T , H ; 1721: 1722: \ high-level ghosts 1723: 1724: >CROSS 1725: 1726: Ghost (do) Ghost (?do) 2drop 1727: Ghost (for) drop 1728: Ghost (loop) Ghost (+loop) 2drop 1729: Ghost (next) drop 1730: Ghost (does>) Ghost (does>1) Ghost (does>2) 2drop drop 1731: Ghost compile, drop 1732: Ghost (.") Ghost (S") Ghost (ABORT") 2drop drop 1733: Ghost (C") Ghost c(abort") Ghost type 2drop drop 1734: Ghost ' drop 1735: 1736: \ user ghosts 1737: 1738: Ghost state drop 1739: 1740: \ \ -------------------- Host/Target copy etc. 29aug01jaw 1741: 1742: 1743: >CROSS 1744: 1745: : TD! >image DS! ; 1746: : TD@ >image DS@ ; 1747: 1748: : th-count ( taddr -- host-addr len ) 1749: \G returns host address of target string 1750: assert1( tbyte 1 = ) 1751: dup X c@ swap X char+ >image swap ; 1752: 1753: : ht-move ( haddr taddr len -- ) 1754: \G moves data from host-addr to destination in target-addr 1755: \G character by character 1756: swap -rot bounds ?DO I c@ over X c! X char+ LOOP drop ; 1757: 1758: 2Variable last-string 1759: X has? rom [IF] $60 [ELSE] $00 [THEN] Constant header-masks 1760: 1761: : ht-header, ( addr count -- ) 1762: dup there swap last-string 2! 1763: dup header-masks or T c, H bounds ?DO I c@ T c, H LOOP ; 1764: : ht-string, ( addr count -- ) 1765: dup there swap last-string 2! 1766: dup T c, H bounds ?DO I c@ T c, H LOOP ; 1767: : ht-mem, ( addr count ) 1768: bounds ?DO I c@ T c, H LOOP ; 1769: 1770: >TARGET 1771: 1772: : count dup X c@ swap X char+ swap ; 1773: 1774: : on >r -1 -1 r> TD! ; 1775: : off T 0 swap ! H ; 1776: 1777: : tcmove ( source dest len -- ) 1778: \G cmove in target memory 1779: tchar * bounds 1780: ?DO dup T c@ H I T c! H 1+ 1781: tchar +LOOP drop ; 1782: 1783: : tcallot ( char size -- ) 1784: 0 ?DO dup T c, H tchar +LOOP drop ; 1785: 1786: : td, ( d -- ) 1787: \G Store a host value as one cell into the target 1788: there tcell X allot TD! ; 1789: 1790: \ \ Load Assembler 1791: 1792: >TARGET 1793: H also Forth definitions 1794: 1795: \ FIXME: should we include the assembler really in the forth 1796: \ dictionary?!?!?!? This conflicts with the existing assembler 1797: \ of the host forth system!! 1798: [IFDEF] asm-include asm-include [THEN] hex 1799: 1800: previous 1801: 1802: 1803: >CROSS 1804: 1805: : (cc) T a, H ; ' (cc) plugin-of colon, 1806: : (prim) T a, H ; ' (prim) plugin-of prim, 1807: 1808: : (cr) >tempdp colon, tempdp> ; ' (cr) plugin-of colon-resolve 1809: : (ar) T ! H ; ' (ar) plugin-of addr-resolve 1810: : (dr) ( ghost res-pnt target-addr addr ) 1811: >tempdp drop over 1812: dup >magic @ <do:> = 1813: IF doer, 1814: ELSE dodoes, 1815: THEN 1816: tempdp> ; ' (dr) plugin-of doer-resolve 1817: 1818: : (cm) ( -- addr ) 1819: there -1 colon, ; ' (cm) plugin-of colonmark, 1820: 1821: >TARGET 1822: : compile, ( xt -- ) 1823: dup xt>ghost >comp @ EXECUTE ; 1824: >CROSS 1825: 1826: \ resolve structure 1827: 1828: : >next ; \ link to next field 1829: : >tag cell+ ; \ indecates type of reference: 0: call, 1: address, 2: doer 1830: : >taddr cell+ cell+ ; 1831: : >ghost 3 cells + ; 1832: : >file 4 cells + ; 1833: : >line 5 cells + ; 1834: 1835: : (refered) ( ghost addr tag -- ) 1836: \G creates a reference to ghost at address taddr 1837: >space 1838: rot >link linked 1839: ( taddr tag ) , 1840: ( taddr ) , 1841: last-header-ghost @ , 1842: loadfile , 1843: sourceline# , 1844: space> 1845: ; 1846: 1847: : refered ( ghost tag -- ) 1848: \G creates a resolve structure 1849: T here aligned H swap (refered) 1850: ; 1851: 1852: : killref ( addr ghost -- ) 1853: \G kills a forward reference to ghost at position addr 1854: \G this is used to eleminate a :dovar refence after making a DOES> 1855: dup >magic @ <fwd> <> IF 2drop EXIT THEN 1856: swap >r >link 1857: BEGIN dup @ dup ( addr last this ) 1858: WHILE dup >taddr @ r@ = 1859: IF @ over ! 1860: ELSE nip THEN 1861: REPEAT rdrop 2drop 1862: ; 1863: 1864: Defer resolve-warning 1865: 1866: : reswarn-test ( ghost res-struct -- ghost res-struct ) 1867: over cr ." Resolving " .ghost dup ." in " >ghost @ .ghost ; 1868: 1869: : reswarn-forward ( ghost res-struct -- ghost res-struct ) 1870: over warnhead .ghost dup ." is referenced in " 1871: >ghost @ .ghost ; 1872: 1873: \ ' reswarn-test IS resolve-warning 1874: 1875: \ resolve 14oct92py 1876: 1877: : resolve-loop ( ghost resolve-list tcfa -- ) 1878: >r 1879: BEGIN dup WHILE 1880: \ dup >tag @ 2 = IF reswarn-forward THEN 1881: resolve-warning 1882: r@ over >taddr @ 1883: 2 pick >tag @ 1884: CASE 0 OF colon-resolve ENDOF 1885: 1 OF addr-resolve ENDOF 1886: 2 OF doer-resolve ENDOF 1887: ENDCASE 1888: @ \ next list element 1889: REPEAT 2drop rdrop 1890: ; 1891: 1892: \ : resolve-loop ( ghost tcfa -- ghost tcfa ) 1893: \ >r dup >link @ 1894: \ BEGIN dup WHILE dup T @ H r@ rot T ! H REPEAT drop r> ; 1895: 1896: \ exists 9may93jaw 1897: 1898: : exists ( ghost tcfa -- ) 1899: \G print warning and set new target link in ghost 1900: swap exists-warning 1901: >link ! ; 1902: 1903: : colon-resolved ( ghost -- ) 1904: \ compiles a call to a colon definition, 1905: \ compile action for >comp field 1906: >link @ colon, ; 1907: 1908: : prim-resolved ( ghost -- ) 1909: \ compiles a call to a primitive 1910: >link @ prim, ; 1911: 1912: : (is-forward) ( ghost -- ) 1913: colonmark, 0 (refered) ; \ compile space for call 1914: ' (is-forward) IS is-forward 1915: 1916: 0 Value resolved 1917: 1918: : resolve-forward-references ( ghost resolve-list -- ) 1919: \ loop through forward referencies 1920: comp-state @ >r Resolving comp-state ! 1921: over >link @ resolve-loop 1922: r> comp-state ! 1923: 1924: ['] noop IS resolve-warning ; 1925: 1926: 1927: : (resolve) ( ghost tcfa -- ghost resolve-list ) 1928: \ check for a valid address, it is a primitive reference 1929: \ otherwise 1930: dup taddr>region 0<> IF 1931: \ define this address in the region address type table 1932: 2dup (>regiontype) define-addr-struct addr-xt-ghost 1933: \ we define new address only if empty 1934: \ this is for not to take over the alias ghost 1935: \ (different ghost, but identical xt) 1936: \ but the very first that really defines it 1937: dup @ 0= IF ! ELSE 2drop THEN 1938: THEN 1939: swap >r 1940: r@ to resolved 1941: 1942: \ r@ >comp @ ['] is-forward = 1943: \ ABORT" >comp action not set on a resolved ghost" 1944: 1945: \ copmile action defaults to colon-resolved 1946: \ if this is not right something must be set before 1947: \ calling resolve 1948: r@ >comp @ ['] is-forward = IF 1949: ['] colon-resolved r@ >comp ! 1950: THEN 1951: r@ >link @ swap \ ( list tcfa R: ghost ) 1952: \ mark ghost as resolved 1953: r@ >link ! <res> r@ >magic ! 1954: r> swap ; 1955: 1956: : resolve ( ghost tcfa -- ) 1957: \G resolve referencies to ghost with tcfa 1958: \ is ghost resolved?, second resolve means another 1959: \ definition with the same name 1960: over undefined? 0= IF exists EXIT THEN 1961: (resolve) 1962: ( ghost resolve-list ) 1963: resolve-forward-references ; 1964: 1965: : resolve-noforwards ( ghost tcfa -- ) 1966: \G Same as resolve but complain if there are any 1967: \G forward references on this ghost 1968: \ is ghost resolved?, second resolve means another 1969: \ definition with the same name 1970: over undefined? 0= IF exists EXIT THEN 1971: (resolve) 1972: IF cr ." No forward references allowed on: " .ghost cr 1973: -1 ABORT" Illegal forward reference" 1974: THEN 1975: drop ; 1976: 1977: \ gexecute ghost, 01nov92py 1978: 1979: : (gexecute) ( ghost -- ) 1980: dup >comp @ EXECUTE ; 1981: 1982: : gexecute ( ghost -- ) 1983: dup >magic @ <imm> = ABORT" CROSS: gexecute on immediate word" 1984: (gexecute) ; 1985: 1986: : addr, ( ghost -- ) 1987: dup forward? IF 1 refered 0 T a, H ELSE >link @ T a, H THEN ; 1988: 1989: \ .unresolved 11may93jaw 1990: 1991: variable ResolveFlag 1992: 1993: \ ?touched 11may93jaw 1994: 1995: : ?touched ( ghost -- flag ) dup forward? swap >link @ 1996: 0 <> and ; 1997: 1998: : .forwarddefs ( ghost -- ) 1999: ." appeared in:" 2000: >link 2001: BEGIN @ dup 2002: WHILE cr 5 spaces 2003: dup >ghost @ .ghost 2004: ." file " dup >file @ ?dup IF count type ELSE ." CON" THEN 2005: ." line " dup >line @ .dec 2006: REPEAT 2007: drop ; 2008: 2009: : ?resolved ( ghost -- ) 2010: dup ?touched 2011: IF ResolveFlag on 2012: dup cr .ghost .forwarddefs 2013: ELSE drop 2014: THEN ; 2015: 2016: : .unresolved ( -- ) 2017: ResolveFlag off cr ." Unresolved: " 2018: ghost-list 2019: BEGIN @ dup 2020: WHILE dup ?resolved 2021: REPEAT drop ResolveFlag @ 2022: IF 2023: -1 abort" Unresolved words!" 2024: ELSE 2025: ." Nothing!" 2026: THEN 2027: cr ; 2028: 2029: : .stats 2030: base @ >r decimal 2031: cr ." named Headers: " headers-named @ . 2032: r> base ! ; 2033: 2034: >MINIMAL 2035: 2036: : .unresolved .unresolved ; 2037: 2038: >CROSS 2039: \ Header states 12dec92py 2040: 2041: \ : flag! ( 8b -- ) tlast @ dup >r T c@ xor r> c! H ; 2042: X has? f83headerstring bigendian or [IF] 0 [ELSE] tcell 1- [THEN] Constant flag+ 2043: : flag! ( w -- ) tlast @ flag+ + dup >r T c@ xor r> c! H ; 2044: 2045: VARIABLE ^imm 2046: 2047: \ !! should be target wordsize specific 2048: $80 constant alias-mask 2049: $40 constant immediate-mask 2050: $20 constant restrict-mask 2051: 2052: >TARGET 2053: : immediate immediate-mask flag! 2054: ^imm @ @ dup <imm> = IF drop EXIT THEN 2055: <res> <> ABORT" CROSS: Cannot immediate a unresolved word" 2056: <imm> ^imm @ ! ; 2057: : restrict restrict-mask flag! ; 2058: 2059: : isdoer 2060: \G define a forth word as doer, this makes obviously only sence on 2061: \G forth processors such as the PSC1000 2062: <do:> last-header-ghost @ >magic ! ; 2063: >CROSS 2064: 2065: \ Target Header Creation 01nov92py 2066: 2067: : ht-lstring, ( addr count -- ) 2068: dup T , H bounds ?DO I c@ T c, H LOOP ; 2069: 2070: >TARGET 2071: X has? f83headerstring [IF] 2072: : name, ( "name" -- ) bl word count ht-header, X cfalign ; 2073: [ELSE] 2074: : name, ( "name" -- ) bl word count ht-lstring, X cfalign ; 2075: [THEN] 2076: : view, ( -- ) ( dummy ) ; 2077: >CROSS 2078: 2079: \ Target Document Creation (goes to crossdoc.fd) 05jul95py 2080: 2081: s" ./doc/crossdoc.fd" r/w create-file throw value doc-file-id 2082: \ contains the file-id of the documentation file 2083: 2084: : T-\G ( -- ) 2085: source >in @ /string doc-file-id write-line throw 2086: postpone \ ; 2087: 2088: Variable to-doc to-doc on 2089: 2090: : cross-doc-entry ( -- ) 2091: to-doc @ tlast @ 0<> and \ not an anonymous (i.e. noname) header 2092: IF 2093: s" " doc-file-id write-line throw 2094: s" make-doc " doc-file-id write-file throw 2095: 2096: Last-Header-Ghost @ >ghostname doc-file-id write-file throw 2097: >in @ 2098: [char] ( parse 2drop 2099: [char] ) parse doc-file-id write-file throw 2100: s" )" doc-file-id write-file throw 2101: [char] \ parse 2drop 2102: T-\G 2103: >in ! 2104: THEN ; 2105: 2106: \ Target TAGS creation 2107: 2108: s" kernel.TAGS" r/w create-file throw value tag-file-id 2109: s" kernel.tags" r/w create-file throw value vi-tag-file-id 2110: \ contains the file-id of the tags file 2111: 2112: Create tag-beg 1 c, 7F c, 2113: Create tag-end 1 c, 01 c, 2114: Create tag-bof 1 c, 0C c, 2115: Create tag-tab 1 c, 09 c, 2116: 2117: 2variable last-loadfilename 0 0 last-loadfilename 2! 2118: 2119: : put-load-file-name ( -- ) 2120: sourcefilename last-loadfilename 2@ d<> 2121: IF 2122: tag-bof count tag-file-id write-line throw 2123: sourcefilename 2dup 2124: tag-file-id write-file throw 2125: last-loadfilename 2! 2126: s" ,0" tag-file-id write-line throw 2127: THEN ; 2128: 2129: : cross-gnu-tag-entry ( -- ) 2130: tlast @ 0<> \ not an anonymous (i.e. noname) header 2131: IF 2132: put-load-file-name 2133: source >in @ min tag-file-id write-file throw 2134: tag-beg count tag-file-id write-file throw 2135: Last-Header-Ghost @ >ghostname tag-file-id write-file throw 2136: tag-end count tag-file-id write-file throw 2137: base @ decimal sourceline# 0 <# #s #> tag-file-id write-file throw 2138: \ >in @ 0 <# #s [char] , hold #> tag-file-id write-line throw 2139: s" ,0" tag-file-id write-line throw 2140: base ! 2141: THEN ; 2142: 2143: : cross-vi-tag-entry ( -- ) 2144: tlast @ 0<> \ not an anonymous (i.e. noname) header 2145: IF 2146: sourcefilename vi-tag-file-id write-file throw 2147: tag-tab count vi-tag-file-id write-file throw 2148: Last-Header-Ghost @ >ghostname vi-tag-file-id write-file throw 2149: tag-tab count vi-tag-file-id write-file throw 2150: s" /^" vi-tag-file-id write-file throw 2151: source vi-tag-file-id write-file throw 2152: s" $/" vi-tag-file-id write-line throw 2153: THEN ; 2154: 2155: : cross-tag-entry ( -- ) 2156: cross-gnu-tag-entry 2157: cross-vi-tag-entry ; 2158: 2159: \ Check for words 2160: 2161: Defer skip? ' false IS skip? 2162: 2163: : skipdef ( "name" -- ) 2164: \G skip definition of an undefined word in undef-words and 2165: \G all-words mode 2166: Ghost dup forward? 2167: IF >magic <skip> swap ! 2168: ELSE drop THEN ; 2169: 2170: : tdefined? ( "name" -- flag ) 2171: Ghost undefined? 0= ; 2172: 2173: : defined2? ( "name" -- flag ) 2174: \G return true for anything else than forward, even for <skip> 2175: \G that's what we want 2176: Ghost forward? 0= ; 2177: 2178: : forced? ( "name" -- flag ) 2179: \G return ture if it is a foreced skip with defskip 2180: Ghost >magic @ <skip> = ; 2181: 2182: : needed? ( -- flag ) \ name 2183: \G returns a false flag when 2184: \G a word is not defined 2185: \G a forward reference exists 2186: \G so the definition is not skipped! 2187: bl word gfind 2188: IF dup undefined? 2189: nip 2190: 0= 2191: ELSE drop true THEN ; 2192: 2193: : doer? ( "name" -- 0 | addr ) \ name 2194: Ghost dup >magic @ <do:> = 2195: IF >link @ ELSE drop 0 THEN ; 2196: 2197: : skip-defs ( -- ) 2198: BEGIN refill WHILE source -trailing nip 0= UNTIL THEN ; 2199: 2200: \ Target header creation 2201: 2202: Variable NoHeaderFlag 2203: NoHeaderFlag off 2204: 2205: : 0.r ( n1 n2 -- ) 2206: base @ >r hex 2207: 0 swap <# 0 ?DO # LOOP #> type 2208: r> base ! ; 2209: 2210: : .sym ( adr len -- ) 2211: \G escapes / and \ to produce sed output 2212: bounds 2213: DO I c@ dup 2214: CASE [char] / OF drop ." \/" ENDOF 2215: [char] \ OF drop ." \\" ENDOF 2216: dup OF emit ENDOF 2217: ENDCASE 2218: LOOP ; 2219: 2220: Defer setup-execution-semantics ' noop IS setup-execution-semantics 2221: 0 Value lastghost 2222: 2223: : (THeader ( "name" -- ghost ) 2224: \ >in @ bl word count type 2 spaces >in ! 2225: \ wordheaders will always be compiled to rom 2226: switchrom 2227: \ build header in target 2228: NoHeaderFlag @ 2229: IF NoHeaderFlag off 2230: ELSE 2231: T align H view, 2232: tlast @ dup 0> IF tcell - THEN T A, H there tlast ! 2233: 1 headers-named +! \ Statistic 2234: >in @ T name, H >in ! 2235: THEN 2236: T cfalign here H tlastcfa ! 2237: \ Old Symbol table sed-script 2238: \ >in @ cr ." sym:s/CFA=" there 4 0.r ." /" bl word count .sym ." /g" cr >in ! 2239: HeaderGhost 2240: \ output symbol table to extra file 2241: dup >ghostname there symentry 2242: dup Last-Header-Ghost ! dup to lastghost 2243: dup >magic ^imm ! \ a pointer for immediate 2244: alias-mask flag! 2245: cross-doc-entry cross-tag-entry 2246: setup-execution-semantics 2247: ; 2248: 2249: \ this is the resolver information from ":" 2250: \ resolving is done by ";" 2251: Variable ;Resolve 1 cells allot 2252: 2253: : hereresolve ( ghost -- ) 2254: there resolve 0 ;Resolve ! ; 2255: 2256: : Theader ( "name" -- ghost ) 2257: (THeader dup hereresolve ; 2258: 2259: Variable aprim-nr -20 aprim-nr ! 2260: 2261: : copy-execution-semantics ( ghost-from ghost-dest -- ) 2262: >r 2263: dup >exec @ r@ >exec ! 2264: dup >comp @ r@ >comp ! 2265: dup >exec2 @ r@ >exec2 ! 2266: dup >exec-compile @ r@ >exec-compile ! 2267: dup >ghost-xt @ r@ >ghost-xt ! 2268: dup >created @ r@ >created ! 2269: rdrop drop ; 2270: 2271: >TARGET 2272: 2273: : Alias ( cfa -- ) \ name 2274: >in @ skip? IF 2drop EXIT THEN >in ! 2275: (THeader ( S xt ghost ) 2276: 2dup swap xt>ghost swap copy-execution-semantics 2277: over resolve T A, H alias-mask flag! ; 2278: 2279: Variable last-prim-ghost 2280: 0 last-prim-ghost ! 2281: 2282: : asmprimname, ( ghost -- : name ) 2283: dup last-prim-ghost ! 2284: >r 2285: here bl word count string, r@ >asm-name ! 2286: aprim-nr @ r> >asm-dummyaddr ! ; 2287: 2288: Defer setup-prim-semantics 2289: 2290: : mapprim ( "forthname" "asmlabel" -- ) 2291: THeader -1 aprim-nr +! aprim-nr @ T A, H 2292: asmprimname, 2293: setup-prim-semantics ; 2294: 2295: : mapprim: ( "forthname" "asmlabel" -- ) 2296: -1 aprim-nr +! aprim-nr @ 2297: Ghost tuck swap resolve-noforwards <do:> swap tuck >magic ! 2298: asmprimname, ; 2299: 2300: : Doer: ( cfa -- ) \ name 2301: >in @ skip? IF 2drop EXIT THEN >in ! 2302: dup 0< s" prims" T $has? H 0= and 2303: IF 2304: .sourcepos ." needs doer: " >in @ bl word count type >in ! cr 2305: THEN 2306: Ghost 2307: tuck swap resolve-noforwards <do:> swap >magic ! ; 2308: 2309: Variable prim# 2310: : first-primitive ( n -- ) prim# ! ; 2311: : group 0 word drop prim# @ 1- -$200 and prim# ! ; 2312: : groupadd ( n -- ) drop ; 2313: : Primitive ( -- ) \ name 2314: >in @ skip? IF drop EXIT THEN >in ! 2315: s" prims" T $has? H 0= 2316: IF 2317: .sourcepos ." needs prim: " >in @ bl word count type >in ! cr 2318: THEN 2319: prim# @ (THeader ( S xt ghost ) 2320: ['] prim-resolved over >comp ! 2321: dup >ghost-flags <primitive> set-flag 2322: s" EC" T $has? H 0= 2323: IF 2324: over resolve-noforwards T A, H 2325: alias-mask flag! 2326: ELSE 2327: T here H resolve-noforwards T A, H 2328: THEN 2329: -1 prim# +! ; 2330: >CROSS 2331: 2332: \ Conditionals and Comments 11may93jaw 2333: 2334: \G saves the existing cond action, this is used for redefining in 2335: \G instant 2336: Variable cond-xt-old 2337: 2338: : cond-target ( -- ) 2339: \G Compiles semantic of redefined cond into new one 2340: cond-xt-old @ compile, ; immediate restrict 2341: 2342: : ;Cond 2343: postpone ; 2344: swap ! ; immediate 2345: 2346: : Cond: ( "name" -- ) 2347: \g defines a conditional or another word that must 2348: \g be executed directly while compiling 2349: \g these words have no interpretative semantics by default 2350: Ghost 2351: >exec-compile 2352: dup @ cond-xt-old ! 2353: :NONAME ; 2354: 2355: 2356: : Comment ( -- ) 2357: >in @ Ghost swap >in ! ' swap 2358: 2dup >exec-compile ! >exec ! ; 2359: 2360: Comment ( Comment \ 2361: 2362: \ compile 10may93jaw 2363: 2364: : compile ( "name" -- ) \ name 2365: findghost 2366: dup >exec-compile @ ?dup 2367: IF nip compile, 2368: ELSE postpone literal postpone gexecute THEN ; immediate restrict 2369: 2370: >TARGET 2371: 2372: : ' ( -- xt ) 2373: \G returns the target-cfa of a ghost 2374: bl word gfind 0= ABORT" CROSS: Ghost don't exists" 2375: g>xt ; 2376: 2377: \ FIXME: this works for the current use cases, but is not 2378: \ in all cases correct ;-) 2379: : comp' X ' 0 ; 2380: 2381: Cond: ['] T ' H alit, ;Cond 2382: 2383: >CROSS 2384: 2385: : [T'] 2386: \ returns the target-cfa of a ghost, or compiles it as literal 2387: postpone [G'] 2388: state @ IF postpone g>xt ELSE g>xt THEN ; immediate 2389: 2390: \ \ threading modell 13dec92py 2391: \ modularized 14jun97jaw 2392: 2393: T 2 cells H Value xt>body 2394: 2395: : (>body) ( cfa -- pfa ) 2396: xt>body + ; ' (>body) plugin-of t>body 2397: 2398: : fillcfa ( usedcells -- ) 2399: T cells H xt>body swap - 2400: assert1( dup 0 >= ) 2401: 0 ?DO 0 X c, tchar +LOOP ; 2402: 2403: : (doer,) ( ghost -- ) 2404: addr, 1 fillcfa ; ' (doer,) plugin-of doer, 2405: 2406: : (docol,) ( -- ) [G'] :docol (doer,) ; ' (docol,) plugin-of docol, 2407: 2408: ' NOOP plugin-of ca>native 2409: 2410: : (doprim,) ( -- ) 2411: there xt>body + ca>native T a, H 1 fillcfa ; ' (doprim,) plugin-of doprim, 2412: 2413: : (doeshandler,) ( -- ) 2414: T cfalign H [G'] :doesjump addr, T 0 , H ; ' (doeshandler,) plugin-of doeshandler, 2415: 2416: : (dodoes,) ( does-action-ghost -- ) 2417: ]comp [G'] :dodoes addr, comp[ 2418: addr, 2419: \ the relocator in the c engine, does not like the 2420: \ does-address to marked for relocation 2421: [ T e? ec H 0= [IF] ] T here H tcell - reloff [ [THEN] ] 2422: 2 fillcfa ; ' (dodoes,) plugin-of dodoes, 2423: 2424: : (dlit,) ( n -- ) compile lit td, ; ' (dlit,) plugin-of dlit, 2425: 2426: : (lit,) ( n -- ) s>d dlit, ; ' (lit,) plugin-of lit, 2427: 2428: \ if we dont produce relocatable code alit, defaults to lit, jaw 2429: \ this is just for convenience, so we don't have to define alit, 2430: \ seperately for embedded systems.... 2431: T has? relocate H 2432: [IF] 2433: : (alit,) ( n -- ) compile lit T a, H ; ' (alit,) plugin-of alit, 2434: [ELSE] 2435: : (alit,) ( n -- ) lit, ; ' (alit,) plugin-of alit, 2436: [THEN] 2437: 2438: : (fini,) compile ;s ; ' (fini,) plugin-of fini, 2439: 2440: [IFUNDEF] (code) 2441: Defer (code) 2442: Defer (end-code) 2443: [THEN] 2444: 2445: >TARGET 2446: : Code 2447: defempty? 2448: (THeader ( ghost ) 2449: ['] prim-resolved over >comp ! 2450: there resolve-noforwards 2451: 2452: [ T e? prims H 0= [IF] T e? ITC H [ELSE] true [THEN] ] [IF] 2453: doprim, 2454: [THEN] 2455: depth (code) ; 2456: 2457: \ FIXME : no-compile -1 ABORT" this ghost is not for compilation" ; 2458: 2459: : Code: 2460: defempty? 2461: Ghost >r 2462: r@ >ghostname there symentry 2463: r@ there ca>native resolve-noforwards 2464: <do:> r@ >magic ! 2465: r> drop 2466: depth (code) ; 2467: 2468: : end-code 2469: (end-code) 2470: depth ?dup IF 1- <> ABORT" CROSS: Stack changed" 2471: ELSE true ABORT" CROSS: Stack empty" THEN 2472: ; 2473: 2474: >CROSS 2475: 2476: \ tLiteral 12dec92py 2477: 2478: >TARGET 2479: Cond: \G T-\G ;Cond 2480: 2481: Cond: Literal ( n -- ) lit, ;Cond 2482: Cond: ALiteral ( n -- ) alit, ;Cond 2483: 2484: : Char ( "<char>" -- ) bl word char+ c@ ; 2485: Cond: [Char] ( "<char>" -- ) Char lit, ;Cond 2486: 2487: : (x#) ( adr len base -- ) 2488: base @ >r base ! 0 0 name >number 2drop drop r> base ! ; 2489: 2490: : d# $0a (x#) ; 2491: : h# $010 (x#) ; 2492: 2493: Cond: d# $0a (x#) lit, ;Cond 2494: Cond: h# $010 (x#) lit, ;Cond 2495: 2496: tchar 1 = [IF] 2497: Cond: chars ;Cond 2498: [THEN] 2499: 2500: \ some special literals 27jan97jaw 2501: 2502: Cond: MAXU 2503: -1 s>d dlit, 2504: ;Cond 2505: 2506: tcell 2 = tcell 4 = or tcell 8 = or 0= 2507: [IF] 2508: .( Warning: MINI and MAXI may not work with this host) cr 2509: [THEN] 2510: 2511: Cond: MINI 2512: tcell 2 = IF $8000 ELSE $80000000 THEN 0 2513: tcell 8 = IF swap THEN dlit, 2514: ;Cond 2515: 2516: Cond: MAXI 2517: tcell 2 = IF $7fff ELSE $7fffffff THEN 0 2518: tcell 8 = IF drop -1 swap THEN dlit, 2519: ;Cond 2520: 2521: >CROSS 2522: 2523: \ Target compiling loop 12dec92py 2524: \ ">tib trick thrown out 10may93jaw 2525: \ number? defined at the top 11may93jaw 2526: \ replaced >in by save-input 2527: 2528: : discard 0 ?DO drop LOOP ; 2529: 2530: \ compiled word might leave items on stack! 2531: : tcom ( x1 .. xn n name -- ) 2532: \ dup count type space 2533: gfind 2534: IF >r ( discard saved input state ) discard r> 2535: dup >exec-compile @ ?dup 2536: IF nip execute-exec-compile ELSE gexecute THEN 2537: EXIT 2538: THEN 2539: number? dup 2540: IF 0> IF swap lit, THEN lit, discard 2541: ELSE 2drop restore-input throw Ghost gexecute THEN ; 2542: 2543: \ : ; DOES> 13dec92py 2544: \ ] 9may93py/jaw 2545: 2546: >CROSS 2547: 2548: : compiling-state ( -- ) 2549: \G set states to compililng 2550: Compiling comp-state ! 2551: \ if we have a state in target, change it with the compile state 2552: [G'] state dup undefined? 0= 2553: IF >ghost-xt @ execute X on ELSE drop THEN ; 2554: 2555: : interpreting-state ( -- ) 2556: \G set states to interpreting 2557: \ if target has a state variable, change it according to our state 2558: [G'] state dup undefined? 0= 2559: IF >ghost-xt @ execute X off ELSE drop THEN 2560: Interpreting comp-state ! ; 2561: 2562: >TARGET 2563: 2564: : ] 2565: compiling-state 2566: BEGIN 2567: BEGIN save-input bl word 2568: dup c@ 0= WHILE drop discard refill 0= 2569: ABORT" CROSS: End of file while target compiling" 2570: REPEAT 2571: tcom 2572: compiling? 0= 2573: UNTIL ; 2574: 2575: \ by the way: defining a second interpreter (a compiler-)loop 2576: \ is not allowed if a system should be ans conform 2577: 2578: : (:) ( ghost -- ) 2579: \ common factor of : and :noname. Prepare ;Resolve and start definition 2580: ;Resolve ! there ;Resolve cell+ ! 2581: docol, ]comp colon-start depth T ] H ; 2582: 2583: : : ( -- colon-sys ) \ Name 2584: defempty? 2585: constflag off \ don't let this flag work over colon defs 2586: \ just to go sure nothing unwanted happens 2587: >in @ skip? IF drop skip-defs EXIT THEN >in ! 2588: (THeader (:) ; 2589: 2590: : :noname ( -- colon-sys ) 2591: switchrom X cfalign there 2592: \ define a nameless ghost 2593: here ghostheader dup last-header-ghost ! dup to lastghost 2594: (:) ; 2595: 2596: Cond: EXIT ( -- ) compile ;S ;Cond 2597: 2598: Cond: ?EXIT ( -- ) 1 abort" CROSS: using ?exit" ;Cond 2599: 2600: >CROSS 2601: : LastXT ;Resolve @ 0= abort" CROSS: no definition for LastXT" 2602: ;Resolve cell+ @ ; 2603: 2604: >TARGET 2605: 2606: Cond: recurse ( -- ) Last-Header-Ghost @ gexecute ;Cond 2607: 2608: Cond: ; ( -- ) 2609: depth ?dup 2610: IF 1- <> ABORT" CROSS: Stack changed" 2611: ELSE true ABORT" CROSS: Stack empty" 2612: THEN 2613: colon-end 2614: fini, 2615: comp[ 2616: ;Resolve @ 2617: IF ['] colon-resolved ;Resolve @ >comp ! 2618: ;Resolve @ ;Resolve cell+ @ resolve 2619: THEN 2620: interpreting-state 2621: ;Cond 2622: 2623: Cond: [ ( -- ) interpreting-state ;Cond 2624: 2625: >CROSS 2626: 2627: 0 Value created 2628: 2629: : !does ( does-action -- ) 2630: tlastcfa @ [G'] :dovar killref 2631: >space here >r ghostheader space> 2632: ['] colon-resolved r@ >comp ! 2633: r@ created >do:ghost ! r@ swap resolve 2634: r> tlastcfa @ >tempdp dodoes, tempdp> ; 2635: 2636: Defer instant-interpret-does>-hook ' noop IS instant-interpret-does>-hook 2637: 2638: T has? primcentric H [IF] 2639: : does-resolved ( ghost -- ) 2640: compile does-exec g>xt T a, H ; 2641: [ELSE] 2642: : does-resolved ( ghost -- ) 2643: g>xt T a, H ; 2644: [THEN] 2645: 2646: : resolve-does>-part ( -- ) 2647: \ resolve words made by builders 2648: Last-Header-Ghost @ >do:ghost @ ?dup 2649: IF there resolve THEN ; 2650: 2651: >TARGET 2652: Cond: DOES> 2653: T here H [ T has? primcentric H [IF] ] 5 [ [ELSE] ] 4 [ [THEN] ] T cells 2654: H + alit, compile (does>2) compile ;s 2655: doeshandler, resolve-does>-part 2656: ;Cond 2657: 2658: : DOES> 2659: ['] does-resolved created >comp ! 2660: switchrom doeshandler, T here H !does 2661: instant-interpret-does>-hook 2662: depth T ] H ; 2663: 2664: >CROSS 2665: \ Creation 01nov92py 2666: 2667: \ Builder 11may93jaw 2668: 2669: 0 Value built 2670: 2671: : Builder ( Create-xt do-ghost "name" -- ) 2672: \ builds up a builder in current vocabulary 2673: \ create-xt is executed when word is interpreted 2674: \ do:-xt is executed when the created word from builder is executed 2675: \ for do:-xt an additional entry after the normal ghost-entrys is used 2676: 2677: ghost to built 2678: built >created @ 0= IF 2679: built >created on 2680: THEN ; 2681: 2682: : gdoes, ( ghost -- ) 2683: \ makes the codefield for a word that is built 2684: >do:ghost @ dup undefined? 0= 2685: IF 2686: dup >magic @ <do:> = 2687: IF doer, 2688: ELSE dodoes, 2689: THEN 2690: EXIT 2691: THEN 2692: \ compile :dodoes gexecute 2693: \ T here H tcell - reloff 2694: 2 refered 2695: 0 fillcfa 2696: ; 2697: 2698: : takeover-x-semantics ( S constructor-ghost new-ghost -- ) 2699: \g stores execution semantic and compilation semantic in the built word 2700: swap >do:ghost @ 2dup swap >do:ghost ! 2701: \ we use the >exec2 field for the semantic of a created word, 2702: \ using exec or exec2 makes no difference for normal cross-compilation 2703: \ but is usefull for instant where the exec field is already 2704: \ defined (e.g. Vocabularies) 2705: 2dup >exec @ swap >exec2 ! 2706: >comp @ swap >comp ! ; 2707: 2708: 0 Value createhere 2709: 2710: : create-resolve ( -- ) 2711: created createhere resolve 0 ;Resolve ! ; 2712: : create-resolve-immediate ( -- ) 2713: create-resolve T immediate H ; 2714: 2715: : TCreate ( <name> -- ) 2716: create-forward-warn 2717: IF ['] reswarn-forward IS resolve-warning THEN 2718: executed-ghost @ (Theader 2719: dup >created on dup to created 2720: 2dup takeover-x-semantics 2721: there to createhere drop gdoes, ; 2722: 2723: : RTCreate ( <name> -- ) 2724: \ creates a new word with code-field in ram 2725: create-forward-warn 2726: IF ['] reswarn-forward IS resolve-warning THEN 2727: \ make Alias 2728: executed-ghost @ (THeader 2729: dup >created on dup to created 2730: 2dup takeover-x-semantics 2731: there 0 T a, H alias-mask flag! 2732: \ store poiter to code-field 2733: switchram T cfalign H 2734: there swap T ! H 2735: there tlastcfa ! 2736: there to createhere drop gdoes, ; 2737: 2738: : Build: ( -- [xt] [colon-sys] ) 2739: :noname postpone TCreate ; 2740: 2741: : BuildSmart: ( -- [xt] [colon-sys] ) 2742: :noname 2743: [ T has? rom H [IF] ] 2744: postpone RTCreate 2745: [ [ELSE] ] 2746: postpone TCreate 2747: [ [THEN] ] ; 2748: 2749: : ;Build 2750: postpone create-resolve postpone ; built >exec ! ; immediate 2751: 2752: : ;Build-immediate 2753: postpone create-resolve-immediate 2754: postpone ; built >exec ! ; immediate 2755: 2756: : gdoes> ( ghost -- addr flag ) 2757: executed-ghost @ g>body ; 2758: 2759: \ DO: ;DO 11may93jaw 2760: 2761: : do:ghost! ( ghost -- ) built >do:ghost ! ; 2762: : doexec! ( xt -- ) built >do:ghost @ >exec ! ; 2763: 2764: : DO: ( -- [xt] [colon-sys] ) 2765: here ghostheader do:ghost! 2766: :noname postpone gdoes> ; 2767: 2768: : by: ( -- [xt] [colon-sys] ) \ name 2769: Ghost do:ghost! 2770: :noname postpone gdoes> ; 2771: 2772: : ;DO ( [xt] [colon-sys] -- ) 2773: postpone ; doexec! ; immediate 2774: 2775: : by ( -- ) \ Name 2776: Ghost >do:ghost @ do:ghost! ; 2777: 2778: : compile: ( --[xt] [colon-sys] ) 2779: \G defines a compile time action for created words 2780: \G by this builder 2781: :noname ; 2782: 2783: : ;compile ( [xt] [colon-sys] -- ) 2784: postpone ; built >do:ghost @ >comp ! ; immediate 2785: 2786: \ Variables and Constants 05dec92py 2787: 2788: Builder (Constant) 2789: Build: ( n -- ) ;Build 2790: by: :docon ( target-body-addr -- n ) T @ H ;DO 2791: 2792: Builder Constant 2793: Build: ( n -- ) T , H ;Build 2794: by (Constant) 2795: 2796: Builder AConstant 2797: Build: ( n -- ) T A, H ;Build 2798: by (Constant) 2799: 2800: Builder 2Constant 2801: Build: ( d -- ) T , , H ;Build 2802: DO: ( ghost -- d ) T dup cell+ @ swap @ H ;DO 2803: 2804: Builder Create 2805: BuildSmart: ;Build 2806: by: :dovar ( target-body-addr -- addr ) ;DO 2807: 2808: Builder Variable 2809: T has? rom H [IF] 2810: Build: ( -- ) T here 0 A, H switchram T align here swap ! 0 , H ( switchrom ) ;Build 2811: by (Constant) 2812: [ELSE] 2813: Build: T 0 , H ;Build 2814: by Create 2815: [THEN] 2816: 2817: Builder 2Variable 2818: T has? rom H [IF] 2819: Build: ( -- ) T here 0 A, H switchram T align here swap ! 0 , 0 , H ( switchrom ) ;Build 2820: by (Constant) 2821: [ELSE] 2822: Build: T 0 , 0 , H ;Build 2823: by Create 2824: [THEN] 2825: 2826: Builder AVariable 2827: T has? rom H [IF] 2828: Build: ( -- ) T here 0 A, H switchram T align here swap ! 0 A, H ( switchrom ) ;Build 2829: by (Constant) 2830: [ELSE] 2831: Build: T 0 A, H ;Build 2832: by Create 2833: [THEN] 2834: 2835: \ User variables 04may94py 2836: 2837: : tup@ user-region >rstart @ ; 2838: 2839: \ Variable tup 0 tup ! 2840: \ Variable tudp 0 tudp ! 2841: 2842: : u, ( n -- udp ) 2843: current-region >r user-region activate 2844: X here swap X , tup@ - 2845: r> activate ; 2846: 2847: : au, ( n -- udp ) 2848: current-region >r user-region activate 2849: X here swap X a, tup@ - 2850: r> activate ; 2851: 2852: T has? no-userspace H [IF] 2853: 2854: : buildby 2855: ghost >exec @ built >exec ! ; 2856: 2857: Builder User 2858: buildby Variable 2859: by Variable 2860: 2861: Builder 2User 2862: buildby 2Variable 2863: by 2Variable 2864: 2865: Builder AUser 2866: buildby AVariable 2867: by AVariable 2868: 2869: [ELSE] 2870: 2871: Builder User 2872: Build: 0 u, X , ;Build 2873: by: :douser ( ghost -- up-addr ) X @ tup@ + ;DO 2874: 2875: Builder 2User 2876: Build: 0 u, X , 0 u, drop ;Build 2877: by User 2878: 2879: Builder AUser 2880: Build: 0 au, X , ;Build 2881: by User 2882: 2883: [THEN] 2884: 2885: T has? rom H [IF] 2886: Builder (Value) 2887: Build: ( n -- ) ;Build 2888: by: :dovalue ( target-body-addr -- n ) T @ @ H ;DO 2889: 2890: Builder Value 2891: Build: T here 0 A, H switchram T align here swap ! , H ;Build 2892: by (Value) 2893: 2894: Builder AValue 2895: Build: T here 0 A, H switchram T align here swap ! A, H ;Build 2896: by (Value) 2897: [ELSE] 2898: Builder (Value) 2899: Build: ( n -- ) ;Build 2900: by: :dovalue ( target-body-addr -- n ) T @ H ;DO 2901: 2902: Builder Value 2903: BuildSmart: T , H ;Build 2904: by (Value) 2905: 2906: Builder AValue 2907: BuildSmart: T A, H ;Build 2908: by (Value) 2909: [THEN] 2910: 2911: Defer texecute 2912: 2913: Builder Defer 2914: T has? rom H [IF] 2915: Build: ( -- ) T here 0 A, H switchram T align here swap ! H [T'] noop T A, H ( switchrom ) ;Build 2916: by: :dodefer ( ghost -- ) X @ X @ texecute ;DO 2917: [ELSE] 2918: BuildSmart: ( -- ) [T'] noop T A, H ;Build 2919: by: :dodefer ( ghost -- ) X @ texecute ;DO 2920: [THEN] 2921: 2922: Builder interpret/compile: 2923: Build: ( inter comp -- ) swap T A, A, H ;Build-immediate 2924: DO: ( ghost -- ) ABORT" CROSS: Don't execute" ;DO 2925: 2926: \ Sturctures 23feb95py 2927: 2928: : nalign ( addr1 n -- addr2 ) 2929: \ addr2 is the aligned version of addr1 wrt the alignment size n 2930: 1- tuck + swap invert and ; 2931: 2932: 2933: Builder (Field) 2934: Build: ;Build 2935: by: :dofield T @ H + ;DO 2936: 2937: Builder Field 2938: Build: ( align1 offset1 align size "name" -- align2 offset2 ) 2939: rot dup T , H ( align1 align size offset1 ) 2940: + >r nalign r> ;Build 2941: by (Field) 2942: 2943: >TARGET 2944: : struct T 1 chars 0 H ; 2945: : end-struct T 2Constant H ; 2946: 2947: : cell% ( n -- size align ) 2948: T 1 cells H dup ; 2949: >CROSS 2950: 2951: \ Input-Methods 01py 2952: 2953: Builder input-method 2954: Build: ( m v -- m' v ) dup T , cell+ H ;Build 2955: DO: abort" Not in cross mode" ;DO 2956: 2957: Builder input-var 2958: Build: ( m v size -- m v' ) over T , H + ;Build 2959: DO: abort" Not in cross mode" ;DO 2960: 2961: \ Peephole optimization 05sep01jaw 2962: 2963: \ this section defines different compilation 2964: \ actions for created words 2965: \ this will help the peephole optimizer 2966: \ I (jaw) took this from bernds latest cross-compiler 2967: \ changes but seperated it from the original 2968: \ Builder words. The final plan is to put this 2969: \ into a seperate file, together with the peephole 2970: \ optimizer for cross 2971: 2972: 2973: T has? primcentric H [IF] 2974: 2975: \ .( loading peephole optimization) cr 2976: 2977: >CROSS 2978: 2979: : (callc) compile call T >body a, H ; ' (callc) plugin-of colon, 2980: : (callcm) T here 0 a, 0 a, H ; ' (callcm) plugin-of colonmark, 2981: : (call-res) >tempdp resolved gexecute tempdp> drop ; 2982: ' (call-res) plugin-of colon-resolve 2983: T has? ec H [IF] 2984: : (pprim) T @ H >signed dup 0< IF $4000 - ELSE 2985: cr ." wrong usage of (prim) " 2986: dup gdiscover IF .ghost ELSE . THEN cr -1 throw THEN 2987: T a, H ; ' (pprim) plugin-of prim, 2988: [ELSE] 2989: : (pprim) dup 0< IF $4000 - ELSE 2990: cr ." wrong usage of (prim) " 2991: dup gdiscover IF .ghost ELSE . THEN cr -1 throw THEN 2992: T a, H ; ' (pprim) plugin-of prim, 2993: [THEN] 2994: 2995: \ if we want this, we have to spilt aconstant 2996: \ and constant!! 2997: \ Builder (Constant) 2998: \ compile: g>body X @ lit, ;compile 2999: 3000: Builder (Constant) 3001: compile: g>body compile lit@ T a, H ;compile 3002: 3003: Builder (Value) 3004: compile: g>body compile lit@ T a, H ;compile 3005: 3006: \ this changes also Variable, AVariable and 2Variable 3007: Builder Create 3008: compile: g>body alit, ;compile 3009: 3010: Builder User 3011: compile: g>body compile useraddr T @ , H ;compile 3012: 3013: Builder Defer 3014: compile: g>body compile lit-perform T A, H ;compile 3015: 3016: Builder (Field) 3017: compile: g>body T @ H compile lit+ T here H reloff T , H ;compile 3018: 3019: Builder interpret/compile: 3020: compile: does-resolved ;compile 3021: 3022: Builder input-method 3023: compile: does-resolved ;compile 3024: 3025: Builder input-var 3026: compile: does-resolved ;compile 3027: 3028: [THEN] 3029: 3030: \ structural conditionals 17dec92py 3031: 3032: >CROSS 3033: : (ncontrols?) ( n -- ) 3034: \g We expect n open control structures 3035: depth over u<= 3036: ABORT" CROSS: unstructured, stack underflow" 3037: 0 ?DO I pick 0= 3038: ABORT" CROSS: unstructured" 3039: LOOP ; ' (ncontrols?) plugin-of ncontrols? 3040: 3041: \ : ?struc ( flag -- ) ABORT" CROSS: unstructured " ; 3042: \ : sys? ( sys -- sys ) dup 0= ?struc ; 3043: 3044: : >mark ( -- sys ) T here ( dup ." M" hex. ) 0 , H ; 3045: 3046: X has? abranch [IF] 3047: : branchoffset ( src dest -- ) drop ; 3048: : offset, ( n -- ) X A, ; 3049: [ELSE] 3050: : branchoffset ( src dest -- ) - tchar / ; \ ?? jaw 3051: : offset, ( n -- ) X , ; 3052: [THEN] 3053: 3054: :noname compile branch X here branchoffset offset, ; 3055: IS branch, ( target-addr -- ) 3056: :noname compile ?branch X here branchoffset offset, ; 3057: IS ?branch, ( target-addr -- ) 3058: :noname compile branch T here 0 H offset, ; 3059: IS branchmark, ( -- branchtoken ) 3060: :noname compile ?branch T here 0 H offset, ; 3061: IS ?branchmark, ( -- branchtoken ) 3062: :noname T here 0 H offset, ; 3063: IS ?domark, ( -- branchtoken ) 3064: :noname dup X @ ?struc X here over branchoffset swap X ! ; 3065: IS branchtoresolve, ( branchtoken -- ) 3066: :noname branchto, X here ; 3067: IS branchtomark, ( -- target-addr ) 3068: 3069: >TARGET 3070: 3071: \ Structural Conditionals 12dec92py 3072: 3073: \ CLEANUP Cond: BUT sys? swap ;Cond 3074: \ CLEANUP Cond: YET sys? dup ;Cond 3075: 3076: >CROSS 3077: 3078: Variable tleavings 0 tleavings ! 3079: 3080: : (done) ( do-addr -- ) 3081: \G resolve branches of leave and ?leave and ?do 3082: \G do-addr is the address of the beginning of our 3083: \G loop so we can take care of nested loops 3084: tleavings @ 3085: BEGIN dup 3086: WHILE 3087: >r dup r@ cell+ @ \ address of branch 3088: u> 0= \ lower than DO? 3089: WHILE 3090: r@ 2 cells + @ \ branch token 3091: branchtoresolve, 3092: r@ @ r> free throw 3093: REPEAT r> THEN 3094: tleavings ! drop ; 3095: 3096: >TARGET 3097: 3098: \ What for? ANS? JAW Cond: DONE ( addr -- ) (done) ;Cond 3099: 3100: >CROSS 3101: : (leave) ( branchtoken -- ) 3102: 3 cells allocate throw >r 3103: T here H r@ cell+ ! 3104: r@ 2 cells + ! 3105: tleavings @ r@ ! 3106: r> tleavings ! ; 3107: >TARGET 3108: 3109: : (leave,) ( -- ) 3110: branchmark, (leave) ; ' (leave,) plugin-of leave, 3111: 3112: : (?leave,) ( -- ) 3113: compile 0= ?branchmark, (leave) ; ' (?leave,) plugin-of ?leave, 3114: 3115: Cond: LEAVE leave, ;Cond 3116: Cond: ?LEAVE ?leave, ;Cond 3117: 3118: >CROSS 3119: \ !!JW ToDo : Move to general tools section 3120: 3121: : to1 ( x1 x2 xn n -- addr ) 3122: \G packs n stack elements in am allocated memory region 3123: dup dup 1+ cells allocate throw dup >r swap 1+ 3124: 0 DO tuck ! cell+ LOOP 3125: drop r> ; 3126: 3127: : 1to ( addr -- x1 x2 xn ) 3128: \G unpacks the elements saved by to1 3129: dup @ swap over cells + swap 3130: 0 DO dup @ swap 1 cells - LOOP 3131: free throw ; 3132: 3133: : loop] ( target-addr -- ) 3134: branchto, 3135: dup X here branchoffset offset, 3136: tcell - (done) ; 3137: 3138: : skiploop] ?dup IF branchto, branchtoresolve, THEN ; 3139: 3140: >TARGET 3141: 3142: \ Structural Conditionals 12dec92py 3143: 3144: : (cs-swap) ( x1 x2 -- x2 x1 ) 3145: swap ; ' (cs-swap) plugin-of cs-swap 3146: 3147: : (ahead,) branchmark, ; ' (ahead,) plugin-of ahead, 3148: 3149: : (if,) ?branchmark, ; ' (if,) plugin-of if, 3150: 3151: : (then,) branchto, branchtoresolve, ; ' (then,) plugin-of then, 3152: 3153: : (else,) ( ahead ) branchmark, 3154: swap 3155: ( then ) branchto, branchtoresolve, ; ' (else,) plugin-of else, 3156: 3157: : (begin,) branchtomark, ; ' (begin,) plugin-of begin, 3158: 3159: : (while,) ( if ) ?branchmark, 3160: swap ; ' (while,) plugin-of while, 3161: 3162: : (again,) branch, ; ' (again,) plugin-of again, 3163: 3164: : (until,) ?branch, ; ' (until,) plugin-of until, 3165: 3166: : (repeat,) ( again ) branch, 3167: ( then ) branchto, branchtoresolve, ; ' (repeat,) plugin-of repeat, 3168: 3169: : (case,) ( -- n ) 3170: 0 ; ' (case,) plugin-of case, 3171: 3172: : (of,) ( n -- x1 n ) 3173: 1+ >r 3174: compile over compile = 3175: if, compile drop r> ; ' (of,) plugin-of of, 3176: 3177: : (endof,) ( x1 n -- x2 n ) 3178: >r 1 ncontrols? else, r> ; ' (endof,) plugin-of endof, 3179: 3180: : (endcase,) ( x1 .. xn n -- ) 3181: compile drop 0 ?DO 1 ncontrols? then, LOOP ; ' (endcase,) plugin-of endcase, 3182: 3183: >TARGET 3184: Cond: AHEAD ahead, ;Cond 3185: Cond: IF if, ;Cond 3186: Cond: THEN 1 ncontrols? then, ;Cond 3187: Cond: ENDIF 1 ncontrols? then, ;Cond 3188: Cond: ELSE 1 ncontrols? else, ;Cond 3189: 3190: Cond: BEGIN begin, ;Cond 3191: Cond: WHILE 1 ncontrols? while, ;Cond 3192: Cond: AGAIN 1 ncontrols? again, ;Cond 3193: Cond: UNTIL 1 ncontrols? until, ;Cond 3194: Cond: REPEAT 2 ncontrols? repeat, ;Cond 3195: 3196: Cond: CASE case, ;Cond 3197: Cond: OF of, ;Cond 3198: Cond: ENDOF endof, ;Cond 3199: Cond: ENDCASE endcase, ;Cond 3200: 3201: \ Structural Conditionals 12dec92py 3202: 3203: : (do,) ( -- target-addr ) 3204: \ ?? i think 0 is too much! jaw 3205: 0 compile (do) 3206: branchtomark, 2 to1 ; ' (do,) plugin-of do, 3207: 3208: \ alternative for if no ?do 3209: \ : (do,) 3210: \ compile 2dup compile = compile IF 3211: \ compile 2drop compile ELSE 3212: \ compile (do) branchtomark, 2 to1 ; 3213: 3214: : (?do,) ( -- target-addr ) 3215: 0 compile (?do) ?domark, (leave) 3216: branchtomark, 2 to1 ; ' (?do,) plugin-of ?do, 3217: 3218: : (for,) ( -- target-addr ) 3219: compile (for) branchtomark, ; ' (for,) plugin-of for, 3220: 3221: : (loop,) ( target-addr -- ) 3222: 1to compile (loop) loop] 3223: compile unloop skiploop] ; ' (loop,) plugin-of loop, 3224: 3225: : (+loop,) ( target-addr -- ) 3226: 1to compile (+loop) loop] 3227: compile unloop skiploop] ; ' (+loop,) plugin-of +loop, 3228: 3229: : (next,) 3230: compile (next) loop] compile unloop ; ' (next,) plugin-of next, 3231: 3232: Cond: DO do, ;Cond 3233: Cond: ?DO ?do, ;Cond 3234: Cond: FOR for, ;Cond 3235: 3236: Cond: LOOP 1 ncontrols? loop, ;Cond 3237: Cond: +LOOP 1 ncontrols? +loop, ;Cond 3238: Cond: NEXT 1 ncontrols? next, ;Cond 3239: 3240: \ String words 23feb93py 3241: 3242: : ," [char] " parse ht-string, X align ; 3243: 3244: X has? control-rack [IF] 3245: Cond: ." compile (.") T ," H ;Cond 3246: Cond: S" compile (S") T ," H ;Cond 3247: Cond: C" compile (C") T ," H ;Cond 3248: Cond: ABORT" compile (ABORT") T ," H ;Cond 3249: [ELSE] 3250: Cond: ." '" parse tuck 2>r ahead, there 2r> ht-mem, X align 3251: >r then, r> compile ALiteral compile Literal compile type ;Cond 3252: Cond: S" '" parse tuck 2>r ahead, there 2r> ht-mem, X align 3253: >r then, r> compile ALiteral compile Literal ;Cond 3254: Cond: C" ahead, there [char] " parse ht-string, X align 3255: >r then, r> compile ALiteral ;Cond 3256: Cond: ABORT" if, ahead, there [char] " parse ht-string, X align 3257: >r then, r> compile ALiteral compile c(abort") then, ;Cond 3258: [THEN] 3259: 3260: X has? rom [IF] 3261: Cond: IS T ' >body @ H compile ALiteral compile ! ;Cond 3262: : IS T >address ' >body @ ! H ; 3263: Cond: TO T ' >body @ H compile ALiteral compile ! ;Cond 3264: : TO T ' >body @ ! H ; 3265: Cond: CTO T ' >body H compile ALiteral compile ! ;Cond 3266: : CTO T ' >body ! H ; 3267: [ELSE] 3268: Cond: IS T ' >body H compile ALiteral compile ! ;Cond 3269: : IS T >address ' >body ! H ; 3270: Cond: TO T ' >body H compile ALiteral compile ! ;Cond 3271: : TO T ' >body ! H ; 3272: [THEN] 3273: 3274: Cond: defers T ' >body @ compile, H ;Cond 3275: 3276: \ LINKED ERR" ENV" 2ENV" 18may93jaw 3277: 3278: \ linked list primitive 3279: : linked X here over X @ X A, swap X ! ; 3280: : chained T linked A, H ; 3281: 3282: : err" s" ErrLink linked" evaluate T , H 3283: [char] " parse ht-string, X align ; 3284: 3285: : env" [char] " parse s" EnvLink linked" evaluate 3286: ht-string, X align X , ; 3287: 3288: : 2env" [char] " parse s" EnvLink linked" evaluate 3289: here >r ht-string, X align X , X , 3290: r> dup T c@ H 80 and swap T c! H ; 3291: 3292: \ compile must be last 22feb93py 3293: 3294: Cond: [compile] ( -- ) \ name 3295: \g For immediate words, works even if forward reference 3296: bl word gfind 0= ABORT" CROSS: Can't compile" 3297: (gexecute) ;Cond 3298: 3299: Cond: postpone ( -- ) \ name 3300: bl word gfind 0= ABORT" CROSS: Can't compile" 3301: dup >magic @ <fwd> = 3302: ABORT" CROSS: Can't postpone on forward declaration" 3303: dup >magic @ <imm> = 3304: IF (gexecute) 3305: ELSE >link @ alit, compile compile, THEN ;Cond 3306: 3307: \ save-cross 17mar93py 3308: 3309: hex 3310: 3311: >CROSS 3312: Create magic s" Gforth3x" here over allot swap move 3313: 3314: bigendian 1+ \ strangely, in magic big=0, little=1 3315: tcell 1 = 0 and or 3316: tcell 2 = 2 and or 3317: tcell 4 = 4 and or 3318: tcell 8 = 6 and or 3319: tchar 1 = 00 and or 3320: tchar 2 = 28 and or 3321: tchar 4 = 50 and or 3322: tchar 8 = 78 and or 3323: magic 7 + c! 3324: 3325: : save-cross ( "image-name" "binary-name" -- ) 3326: .regions \ s" ec" X $has? IF .regions THEN 3327: bl parse ." Saving to " 2dup type cr 3328: w/o bin create-file throw >r 3329: s" header" X $has? IF 3330: s" #! " r@ write-file throw 3331: bl parse r@ write-file throw 3332: s" --image-file" r@ write-file throw 3333: #lf r@ emit-file throw 3334: r@ dup file-position throw drop 8 mod 8 swap ( file-id limit index ) 3335: ?do 3336: bl over emit-file throw 3337: loop 3338: drop 3339: magic 8 r@ write-file throw \ write magic 3340: ELSE 3341: bl parse 2drop 3342: THEN 3343: >rom dictionary >rmem @ there 3344: s" rom" X $has? IF dictionary >rstart @ - THEN 3345: r@ write-file throw \ write image 3346: s" relocate" X $has? IF 3347: dictionary >rbm @ there 1- tcell>bit rshift 1+ 3348: r@ write-file throw \ write tags 3349: THEN 3350: r> close-file throw ; 3351: 3352: : save-region ( addr len -- ) 3353: bl parse w/o bin create-file throw >r 3354: swap >image swap r@ write-file throw 3355: r> close-file throw ; 3356: 3357: \ save-asm-region 29aug01jaw 3358: 3359: Variable name-ptr 3360: Create name-buf 200 chars allot 3361: : init-name-buf name-buf name-ptr ! ; 3362: : nb, name-ptr @ c! 1 chars name-ptr +! ; 3363: : $nb, ( adr len -- ) bounds ?DO I c@ nb, LOOP ; 3364: : @nb name-ptr @ name-buf tuck - ; 3365: 3366: \ stores a usefull string representation of the character 3367: \ in the name buffer 3368: : name-char, ( c -- ) 3369: dup 'a 'z 1+ within IF nb, EXIT THEN 3370: dup 'A 'Z 1+ within IF $20 + nb, EXIT THEN 3371: dup '0 '9 1+ within IF nb, EXIT THEN 3372: CASE '+ OF s" _PLUS" $nb, ENDOF 3373: '- OF s" _MINUS" $nb, ENDOF 3374: '* OF s" _STAR" $nb, ENDOF 3375: '/ OF s" _SLASH" $nb, ENDOF 3376: '' OF s" _TICK" $nb, ENDOF 3377: '( OF s" _OPAREN" $nb, ENDOF 3378: ') OF s" _CPAREN" $nb, ENDOF 3379: '[ OF s" _OBRACKET" $nb, ENDOF 3380: '] OF s" _CBRACKET" $nb, ENDOF 3381: '! OF s" _STORE" $nb, ENDOF 3382: '@ OF s" _FETCH" $nb, ENDOF 3383: '> OF s" _GREATER" $nb, ENDOF 3384: '< OF s" _LESS" $nb, ENDOF 3385: '= OF s" _EQUAL" $nb, ENDOF 3386: '# OF s" _HASH" $nb, ENDOF 3387: '? OF s" _QUEST" $nb, ENDOF 3388: ': OF s" _COL" $nb, ENDOF 3389: '; OF s" _SEMICOL" $nb, ENDOF 3390: ', OF s" _COMMA" $nb, ENDOF 3391: '. OF s" _DOT" $nb, ENDOF 3392: '" OF s" _DQUOT" $nb, ENDOF 3393: dup 3394: base @ >r hex s>d <# #s 'X hold '_ hold #> $nb, r> base ! 3395: ENDCASE ; 3396: 3397: : label-from-ghostname ( ghost -- addr len ) 3398: dup >ghostname init-name-buf 'L nb, bounds 3399: ?DO I c@ name-char, LOOP 3400: \ we add the address to a name to make in unique 3401: \ because one name may appear more then once 3402: \ there are names (e.g. boot) that may be reference from other 3403: \ assembler source files, so we declare them as unique 3404: \ and don't add the address suffix 3405: dup >ghost-flags @ <unique> and 0= 3406: IF s" __" $nb, >link @ base @ >r hex 0 <# #s 'L hold #> r> base ! $nb, 3407: ELSE drop 3408: THEN 3409: @nb ; 3410: 3411: \ FIXME why disabled?! 3412: : label-from-ghostnameXX ( ghost -- addr len ) 3413: \ same as (label-from-ghostname) but caches generated names 3414: dup >asm-name @ ?dup IF nip count EXIT THEN 3415: \ dup >r (label-from-ghostname) 2dup 3416: align here >r string, align 3417: r> r> >asm-name ! ; 3418: 3419: : primghostdiscover ( xt -- ghost true | xt false ) 3420: dup 0= IF false EXIT THEN 3421: >r last-prim-ghost 3422: BEGIN @ dup 3423: WHILE dup >asm-dummyaddr @ r@ = 3424: IF rdrop true EXIT THEN 3425: REPEAT 3426: drop r> false ; 3427: 3428: : gdiscover2 ( xt -- ghost true | xt false ) 3429: dup taddr>region 0= IF false EXIT THEN 3430: dup (>regiontype) @ dup 0= IF drop false EXIT THEN 3431: addr-xt-ghost @ dup 0= IF drop false EXIT THEN 3432: nip true ; 3433: \ dup >ghost-name @ IF nip true ELSE drop false THEN ; 3434: 3435: \ generates a label name for the target address 3436: : generate-label-name ( taddr -- addr len ) 3437: gdiscover2 3438: IF dup >magic @ <do:> = 3439: IF >asm-name @ count EXIT THEN 3440: label-from-ghostname 3441: ELSE 3442: primghostdiscover 3443: IF >asm-name @ count 3444: ELSE base @ >r hex 0 <# #s 'L hold #> r> base ! 3445: THEN 3446: THEN ; 3447: 3448: Variable outfile-fd 3449: 3450: : $out ( adr len -- ) outfile-fd @ write-file throw ; 3451: : nlout newline $out ; 3452: : .ux ( n -- ) 3453: base @ hex swap 0 <# #S #> $out base ! ; 3454: 3455: : save-asm-region-part-aligned ( taddr len -- 'taddr 'len ) 3456: dup cell/ 0 3457: ?DO nlout s" .word " $out over @relbit 3458: IF over X @ generate-label-name $out 3459: ELSE over X @ s" 0x0" $out .ux 3460: THEN 3461: tcell /string 3462: LOOP ; 3463: 3464: : print-bytes ( taddr len n -- taddr' len' ) 3465: over min dup 0> 3466: IF nlout s" .byte " $out 0 3467: ?DO I 0> IF s" , " $out THEN 3468: over X c@ s" 0x0" $out .ux 1 /string 3469: LOOP 3470: THEN ; 3471: 3472: : save-asm-region-part ( addr len -- ) 3473: over dup X aligned swap - ?dup 3474: IF print-bytes THEN 3475: save-asm-region-part-aligned 3476: dup dup X aligned swap - ?dup 3477: IF 2 pick @relbit ABORT" relocated field splitted" 3478: print-bytes 3479: THEN 3480: 2drop ; 3481: 3482: : print-label ( taddr -- ) 3483: nlout generate-label-name $out s" :" $out ; 3484: 3485: : snl-calc ( taddr taddr2 -- ) 3486: tuck over - ; 3487: 3488: : skip-nolables ( taddr -- taddr2 taddr len ) 3489: \G skips memory region where no lables are defined 3490: \G starting from taddr+1 3491: \G Labels will be introduced for each reference mark 3492: \G in addr-refs. 3493: \G This word deals with lables at byte addresses as well. 3494: \G The main idea is to have an intro part which 3495: \G skips until the next cell boundary, the middle part 3496: \G which skips whole cells very efficiently and the third 3497: \G part which skips the bytes to the label in a cell 3498: dup 1+ dup (>regiontype) 3499: ( S taddr taddr-realstart type-addr ) 3500: dup @ dup IF addr-refs @ THEN 3501: swap >r 3502: over align+ tuck tcell swap - rshift swap 0 3503: ?DO dup 1 and 3504: IF drop rdrop snl-calc UNLOOP EXIT THEN 3505: 2/ swap 1+ swap 3506: LOOP 3507: drop r> cell+ 3508: ( S .. taddr2 type-addr ) dup 3509: BEGIN dup @ dup IF addr-refs @ THEN 0= WHILE cell+ REPEAT 3510: dup >r swap - 1 cells / tcell * + r> 3511: ( S .. taddr2+skiplencells type-addr ) 3512: @ addr-refs @ 1 tcell lshift or 3513: BEGIN dup 1 and 0= WHILE swap 1+ swap 2/ REPEAT drop 3514: ( S .. taddr2+skiplencells+skiplenbytes ) 3515: snl-calc ; 3516: 3517: : insert-label ( taddr -- ) 3518: dup 0= IF drop EXIT THEN 3519: \ ignore everything which points outside our memory regions 3520: \ maybe a primitive pointer or whatever 3521: dup taddr>region 0= IF drop EXIT THEN 3522: dup >r (>regiontype) define-addr-struct addr-refs dup @ 3523: r> tcell 1- and 1 swap lshift or swap ! ; 3524: 3525: \ this generates a sorted list of addresses which must be labels 3526: \ it scans therefore a whole region 3527: : generate-label-list-region ( taddr len -- ) 3528: BEGIN over @relbit IF over X @ insert-label THEN 3529: tcell /string dup 0< 3530: UNTIL 2drop ; 3531: 3532: : generate-label-list ( -- ) 3533: region-link 3534: BEGIN @ dup WHILE 3535: dup 0 >rlink - extent 3536: ?dup IF generate-label-list-region ELSE drop THEN 3537: REPEAT drop ; 3538: 3539: : create-outfile ( addr len -- ) 3540: w/o bin create-file throw outfile-fd ! ; 3541: 3542: : close-outfile ( -- ) 3543: outfile-fd @ close-file throw ; 3544: 3545: : (save-asm-region) ( region -- ) 3546: \ ." label list..." 3547: generate-label-list 3548: \ ." ok!" cr 3549: extent ( S taddr len ) 3550: over insert-label 3551: 2dup + dup insert-label >r ( R end-label ) 3552: ( S taddr len ) drop 3553: BEGIN 3554: dup print-label 3555: dup r@ <> WHILE 3556: skip-nolables save-asm-region-part 3557: REPEAT drop rdrop ; 3558: 3559: : lineout ( addr len -- ) 3560: outfile-fd @ write-line throw ; 3561: 3562: : save-asm-region ( region adr len -- ) 3563: create-outfile (save-asm-region) close-outfile ; 3564: 3565: \ \ minimal definitions 3566: 3567: >MINIMAL also minimal 3568: 3569: \ Usefull words 13feb93py 3570: 3571: : KB 400 * ; 3572: 3573: \ \ [IF] [ELSE] [THEN] ... 14sep97jaw 3574: 3575: \ it is useful to define our own structures and not to rely 3576: \ on the words in the host system 3577: \ The words in the host system might be defined with vocabularies 3578: \ this doesn't work with our self-made compile-loop 3579: 3580: Create parsed 20 chars allot \ store word we parsed 3581: 3582: : upcase 3583: parsed count bounds 3584: ?DO I c@ toupper I c! LOOP ; 3585: 3586: : [ELSE] 3587: 1 BEGIN 3588: BEGIN bl word count dup WHILE 3589: comment? 20 umin parsed place upcase parsed count 3590: 2dup s" [IF]" str= >r 3591: 2dup s" [IFUNDEF]" str= >r 3592: 2dup s" [IFDEF]" str= r> or r> or 3593: IF 2drop 1+ 3594: ELSE 2dup s" [ELSE]" str= 3595: IF 2drop 1- dup 3596: IF 1+ 3597: THEN 3598: ELSE 3599: 2dup s" [ENDIF]" str= >r 3600: s" [THEN]" str= r> or 3601: IF 1- THEN 3602: THEN 3603: THEN 3604: ?dup 0= ?EXIT 3605: REPEAT 3606: 2drop refill 0= 3607: UNTIL drop ; immediate 3608: 3609: : [THEN] ( -- ) ; immediate 3610: 3611: : [ENDIF] ( -- ) ; immediate 3612: 3613: : [IF] ( flag -- ) 3614: 0= IF postpone [ELSE] THEN ; immediate 3615: 3616: Cond: [IF] postpone [IF] ;Cond 3617: Cond: [THEN] postpone [THEN] ;Cond 3618: Cond: [ELSE] postpone [ELSE] ;Cond 3619: 3620: \ define new [IFDEF] and [IFUNDEF] 20may93jaw 3621: 3622: : defined? tdefined? ; 3623: : needed? needed? ; 3624: : doer? doer? ; 3625: 3626: \ we want to use IFDEF on compiler directives (e.g. E?) in the source, too 3627: 3628: : directive? 3629: bl word count [ ' target >wordlist ] literal search-wordlist 3630: dup IF nip THEN ; 3631: 3632: : [IFDEF] >in @ directive? swap >in ! 3633: 0= IF tdefined? ELSE name 2drop true THEN 3634: postpone [IF] ; 3635: 3636: : [IFUNDEF] tdefined? 0= postpone [IF] ; 3637: 3638: Cond: [IFDEF] postpone [IFDEF] ;Cond 3639: 3640: Cond: [IFUNDEF] postpone [IFUNDEF] ;Cond 3641: 3642: \ C: \- \+ Conditional Compiling 09jun93jaw 3643: 3644: : C: >in @ tdefined? 0= 3645: IF >in ! X : 3646: ELSE drop 3647: BEGIN bl word dup c@ 3648: IF count comment? s" ;" str= ?EXIT 3649: ELSE refill 0= ABORT" CROSS: Out of Input while C:" 3650: THEN 3651: AGAIN 3652: THEN ; 3653: 3654: : d? d? ; 3655: 3656: : \D ( -- "debugswitch" ) 3657: \G doesn't skip line when debug switch is on 3658: D? 0= IF postpone \ THEN ; 3659: 3660: : \- ( -- "wordname" ) 3661: \G interprets the line if word is not defined 3662: tdefined? IF postpone \ THEN ; 3663: 3664: : \+ ( -- "wordname" ) 3665: \G interprets the line if word is defined 3666: tdefined? 0= IF postpone \ THEN ; 3667: 3668: : \? ( -- "envorinstring" ) 3669: \G Skip line if environmental variable evaluates to false 3670: X has? 0= IF postpone \ THEN ; 3671: 3672: Cond: \- \- ;Cond 3673: Cond: \+ \+ ;Cond 3674: Cond: \D \D ;Cond 3675: Cond: \? \? ;Cond 3676: 3677: : ?? bl word find IF execute ELSE drop 0 THEN ; 3678: 3679: : needed: 3680: \G defines ghost for words that we want to be compiled 3681: BEGIN >in @ bl word c@ WHILE >in ! Ghost drop REPEAT drop ; 3682: 3683: \ words that should be in minimal 3684: 3685: create s-buffer 50 chars allot 3686: 3687: bigendian Constant bigendian 3688: 3689: : here there ; 3690: : equ constant ; 3691: : mark there constant ; 3692: 3693: \ compiler directives 3694: : >ram >ram ; 3695: : >rom >rom ; 3696: : >auto >auto ; 3697: : >tempdp >tempdp ; 3698: : tempdp> tempdp> ; 3699: : const constflag on ; 3700: 3701: : Redefinitions-start 3702: \G Starts a redefinition section. Warnings are disabled and 3703: \G existing ghosts are reused. This is used in the kernel 3704: \G where ( and \ and the like are redefined 3705: twarnings off warnings off reuse-ghosts on ; 3706: 3707: : Redefinitions-end 3708: \G Ends a redefinition section. Warnings are enabled again. 3709: twarnings on warnings on reuse-ghosts off ; 3710: 3711: : warnings name 3 = 3712: IF twarnings off warnings off ELSE twarnings on warnings on THEN drop ; 3713: 3714: : | ; 3715: \ : | NoHeaderFlag on ; \ This is broken (damages the last word) 3716: 3717: : save-cross save-cross ; 3718: : save-region save-region ; 3719: : tdump swap >image swap dump ; 3720: 3721: also forth 3722: [IFDEF] Label : Label defempty? Label ; [THEN] 3723: [IFDEF] start-macros : start-macros defempty? start-macros ; [THEN] 3724: \ [IFDEF] builttag : builttag builttag ; [THEN] 3725: previous 3726: 3727: : s" [char] " parse s-buffer place s-buffer count ; \ for environment? 3728: : + + ; 3729: : 1+ 1 + ; 3730: : 2+ 2 + ; 3731: : 1- 1- ; 3732: : - - ; 3733: : and and ; 3734: : or or ; 3735: : 2* 2* ; 3736: : * * ; 3737: : / / ; 3738: : dup dup ; 3739: : ?dup ?dup ; 3740: : over over ; 3741: : swap swap ; 3742: : rot rot ; 3743: : drop drop ; 3744: : 2drop 2drop ; 3745: : = = ; 3746: : <> <> ; 3747: : 0= 0= ; 3748: : lshift lshift ; 3749: : 2/ 2/ ; 3750: : hex. base @ $10 base ! swap . base ! ; 3751: : invert invert ; 3752: : linkstring ( addr u n addr -- ) 3753: X here over X @ X , swap X ! X , ht-string, X align ; 3754: \ : . . ; 3755: 3756: : all-words ['] forced? IS skip? ; 3757: : needed-words ['] needed? IS skip? ; 3758: : undef-words ['] defined2? IS skip? ; 3759: : skipdef skipdef ; 3760: 3761: : \ postpone \ ; immediate 3762: : \G T-\G ; immediate 3763: : ( postpone ( ; immediate 3764: : include bl word count included ; 3765: : included swap >image swap included ; 3766: : require require ; 3767: : needs require ; 3768: : .( [char] ) parse type ; 3769: : ERROR" [char] " parse 3770: rot 3771: IF cr ." *** " type ." ***" -1 ABORT" CROSS: Target error, see text above" 3772: ELSE 2drop 3773: THEN ; 3774: : ." [char] " parse type ; 3775: : cr cr ; 3776: 3777: : times 0 ?DO dup X c, LOOP drop ; \ used for space table creation 3778: 3779: \ only forth also cross also minimal definitions order 3780: 3781: \ cross-compiler words 3782: 3783: : decimal decimal [g'] decimal >exec2 @ ?dup IF EXECUTE THEN ; 3784: : hex hex [g'] hex >exec2 @ ?dup IF EXECUTE THEN ; 3785: 3786: \ : tudp X tudp ; 3787: \ : tup X tup ; 3788: 3789: : doc-off false to-doc ! ; 3790: : doc-on true to-doc ! ; 3791: 3792: : declareunique ( "name" -- ) 3793: \ Sets the unique flag for a ghost. The assembler output 3794: \ generates labels with the ghostname concatenated with the address 3795: \ while cross-compiling. The address is concatenated 3796: \ because we have double occurences of the same name. 3797: \ If we want to reference the labels from the assembler or C 3798: \ code we declare them unique, so the address is skipped. 3799: Ghost >ghost-flags dup @ <unique> or swap ! ; 3800: 3801: \ [IFDEF] dbg : dbg dbg ; [THEN] 3802: 3803: \ for debugging... 3804: \ : dbg dbg ; 3805: : horder order ; 3806: : hwords words ; 3807: \ : words also ghosts 3808: \ words previous ; 3809: : .s .s ; 3810: : depth depth ; 3811: : bye bye ; 3812: 3813: \ dummy 3814: 3815: \ turnkey direction 3816: : H forth ; immediate 3817: : T minimal ; immediate 3818: : G ghosts ; immediate 3819: 3820: 3821: \ these ones are pefered: 3822: 3823: : unlock previous forth also cross ; 3824: 3825: \ also minimal 3826: >cross 3827: 3828: : turnkey 3829: ghosts-wordlist 1 set-order 3830: also target definitions 3831: also Minimal also ; 3832: 3833: >minimal 3834: 3835: : [[+++ 3836: turnkey unlock ; 3837: 3838: unlock definitions also minimal 3839: 3840: : lock turnkey ; 3841: 3842: Defer +++]]-hook 3843: : +++]] +++]]-hook lock ; 3844: 3845: LOCK 3846: \ load cross compiler extension defined in mach file 3847: 3848: UNLOCK >CROSS 3849: 3850: [IFDEF] extend-cross extend-cross [THEN] 3851: 3852: LOCK