gforth/cross.fs - view

File: [gforth] / gforth / cross.fs
Revision 1.144: download - view: text, annotated - select for diffs
Mon Nov 10 16:57:05 2003 UTC (18 years, 1 month ago) by pazsan
Branches: MAIN
CVS tags: HEAD

Changed (does>) to not use the return stack

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