gforth/cross.fs - view

File: [gforth] / gforth / cross.fs
Revision 1.103: download - view: text, annotated - select for diffs
Tue Sep 4 13:06:06 2001 UTC (21 years, 5 months ago) by jwilke
Branches: MAIN
CVS tags: HEAD

lots of changes from the G&D project
- relocatable assembler output
- vocabularies support prepared
- lots of cleanup
- hooks for instant (target execution while cross-compilation)
- peephole changes from bernd missing
- genereation of kernl32l.fi works correctly

1: \ CROSS.FS The Cross-Compiler 06oct92py 2: \ Idea and implementation: Bernd Paysan (py) 3: 4: \ Copyright (C) 1995,1996,1997,1998,1999,2000 Free Software Foundation, Inc. 5: 6: \ This file is part of Gforth. 7: 8: \ Gforth is free software; you can redistribute it and/or 9: \ modify it under the terms of the GNU General Public License 10: \ as published by the Free Software Foundation; either version 2 11: \ of the License, or (at your option) any later version. 12: 13: \ This program is distributed in the hope that it will be useful, 14: \ but WITHOUT ANY WARRANTY; without even the implied warranty of 15: \ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16: \ GNU General Public License for more details. 17: 18: \ You should have received a copy of the GNU General Public License 19: \ along with this program; if not, write to the Free Software 20: \ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA. 21: 22: 0 23: [IF] 24: 25: ToDo: 26: Crossdoc destination ./doc/crossdoc.fd makes no sense when 27: cross.fs is uses seperately. jaw 28: Do we need this char translation with >address and in branchoffset? 29: (>body also affected) jaw 30: Clean up mark> and >resolve stuff jaw 31: 32: [THEN] 33: 34: hex 35: 36: \ debugging for compiling 37: 38: \ print stack at each colon definition 39: \ : : save-input cr bl word count type restore-input throw .s : ; 40: 41: \ print stack at each created word 42: \ : create save-input cr bl word count type restore-input throw .s create ; 43: 44: 45: \ \ ------------- Setup Vocabularies 46: 47: \ Remark: Vocabulary is not ANS, but it should work... 48: 49: Vocabulary Cross 50: Vocabulary Target 51: Vocabulary Ghosts 52: Vocabulary Minimal 53: only Forth also Target also also 54: definitions Forth 55: 56: : T previous Ghosts also Target ; immediate 57: : G Ghosts ; immediate 58: : H previous Forth also Cross ; immediate 59: 60: forth definitions 61: 62: : T previous Ghosts also Target ; immediate 63: : G Ghosts ; immediate 64: 65: : >cross also Cross definitions previous ; 66: : >target also Target definitions previous ; 67: : >minimal also Minimal definitions previous ; 68: 69: H 70: 71: >CROSS 72: 73: \ find out whether we are compiling with gforth 74: 75: : defined? bl word find nip ; 76: defined? emit-file defined? toupper and \ drop 0 77: [IF] 78: \ use this in a gforth system 79: : \GFORTH ; immediate 80: : \ANSI postpone \ ; immediate 81: [ELSE] 82: : \GFORTH postpone \ ; immediate 83: : \ANSI ; immediate 84: [THEN] 85: 86: \ANSI : [IFUNDEF] defined? 0= postpone [IF] ; immediate 87: \ANSI : [IFDEF] defined? postpone [IF] ; immediate 88: 0 \ANSI drop 1 89: [IF] 90: : \G postpone \ ; immediate 91: : rdrop postpone r> postpone drop ; immediate 92: : name bl word count ; 93: : bounds over + swap ; 94: : scan >r BEGIN dup WHILE over c@ r@ <> WHILE 1 /string REPEAT THEN rdrop ; 95: : linked here over @ , swap ! ; 96: : alias create , DOES> @ EXECUTE ; 97: : defer ['] noop alias ; 98: : is state @ 99: IF ' >body postpone literal postpone ! 100: ELSE ' >body ! THEN ; immediate 101: : 0>= 0< 0= ; 102: : d<> rot <> -rot <> or ; 103: : toupper dup [char] a [char] z 1+ within IF [char] A [char] a - + THEN ; 104: Variable ebuf 105: : emit-file ( c fd -- ior ) swap ebuf c! ebuf 1 chars rot write-file ; 106: 0a Constant #lf 107: 0d Constant #cr 108: 109: [IFUNDEF] Warnings Variable Warnings [THEN] 110: 111: \ \ Number parsing 23feb93py 112: 113: \ number? number 23feb93py 114: 115: Variable dpl 116: 117: hex 118: Create bases 10 , 2 , A , 100 , 119: \ 16 2 10 character 120: 121: \ !! protect BASE saving wrapper against exceptions 122: : getbase ( addr u -- addr' u' ) 123: over c@ [char] $ - dup 4 u< 124: IF 125: cells bases + @ base ! 1 /string 126: ELSE 127: drop 128: THEN ; 129: 130: : sign? ( addr u -- addr u flag ) 131: over c@ [char] - = dup >r 132: IF 133: 1 /string 134: THEN 135: r> ; 136: 137: : s>unumber? ( addr u -- ud flag ) 138: over [char] ' = 139: IF \ a ' alone is rather unusual :-) 140: drop char+ c@ 0 true EXIT 141: THEN 142: base @ >r dpl on getbase 143: 0. 2swap 144: BEGIN ( d addr len ) 145: dup >r >number dup 146: WHILE \ there are characters left 147: dup r> - 148: WHILE \ the last >number parsed something 149: dup 1- dpl ! over c@ [char] . = 150: WHILE \ the current char is '.' 151: 1 /string 152: REPEAT THEN \ there are unparseable characters left 153: 2drop false 154: ELSE 155: rdrop 2drop true 156: THEN 157: r> base ! ; 158: 159: \ ouch, this is complicated; there must be a simpler way - anton 160: : s>number? ( addr len -- d f ) 161: \ converts string addr len into d, flag indicates success 162: sign? >r 163: s>unumber? 164: 0= IF 165: rdrop false 166: ELSE \ no characters left, all ok 167: r> 168: IF 169: dnegate 170: THEN 171: true 172: THEN ; 173: 174: : s>number ( addr len -- d ) 175: \ don't use this, there is no way to tell success 176: s>number? drop ; 177: 178: : snumber? ( c-addr u -- 0 / n -1 / d 0> ) 179: s>number? 0= 180: IF 181: 2drop false EXIT 182: THEN 183: dpl @ dup 0< IF 184: nip 185: ELSE 186: 1+ 187: THEN ; 188: 189: : number? ( string -- string 0 / n -1 / d 0> ) 190: dup >r count snumber? dup if 191: rdrop 192: else 193: r> swap 194: then ; 195: 196: : number ( string -- d ) 197: number? ?dup 0= abort" ?" 0< 198: IF 199: s>d 200: THEN ; 201: 202: [THEN] 203: 204: hex \ the defualt base for the cross-compiler is hex !! 205: \ Warnings off 206: 207: \ words that are generaly useful 208: 209: : KB 400 * ; 210: : >wordlist ( vocabulary-xt -- wordlist-struct ) 211: also execute get-order swap >r 1- set-order r> ; 212: 213: : umax 2dup u< IF swap THEN drop ; 214: : umin 2dup u> IF swap THEN drop ; 215: 216: : string, ( c-addr u -- ) 217: \ puts down string as cstring 218: dup c, here swap chars dup allot move ; 219: 220: : ," [char] " parse string, ; 221: 222: : SetValue ( n -- <name> ) 223: \G Same behaviour as "Value" if the <name> is not defined 224: \G Same behaviour as "to" if <name> is defined 225: \G SetValue searches in the current vocabulary 226: save-input bl word >r restore-input throw r> count 227: get-current search-wordlist 228: IF drop >r 229: \ we have to set current to be topmost context wordlist 230: get-order get-order get-current swap 1+ set-order 231: r> ['] to execute 232: set-order 233: ELSE Value THEN ; 234: 235: : DefaultValue ( n -- <name> ) 236: \G Same behaviour as "Value" if the <name> is not defined 237: \G DefaultValue searches in the current vocabulary 238: save-input bl word >r restore-input throw r> count 239: get-current search-wordlist 240: IF bl word drop 2drop ELSE Value THEN ; 241: 242: hex 243: 244: \ 1 Constant Cross-Flag \ to check whether assembler compiler plug-ins are 245: \ for cross-compiling 246: \ No! we use "[IFUNDEF]" there to find out whether we are target compiling!!! 247: 248: : comment? ( c-addr u -- c-addr u ) 249: 2dup s" (" compare 0= 250: IF postpone ( 251: ELSE 2dup s" \" compare 0= IF postpone \ THEN 252: THEN ; 253: 254: \ Begin CROSS COMPILER: 255: 256: \ debugging 257: 258: 0 [IF] 259: 260: This implements debugflags for the cross compiler and the compiled 261: images. It works identical to the has-flags in the environment. 262: The debugflags are defined in a vocabluary. If the word exists and 263: its value is true, the flag is switched on. 264: 265: [THEN] 266: 267: >CROSS 268: 269: Vocabulary debugflags \ debug flags for cross 270: also debugflags get-order over 271: Constant debugflags-wl 272: set-order previous 273: 274: : DebugFlag 275: get-current >r debugflags-wl set-current 276: SetValue 277: r> set-current ; 278: 279: : Debug? ( adr u -- flag ) 280: \G return true if debug flag is defined or switched on 281: debugflags-wl search-wordlist 282: IF EXECUTE 283: ELSE false THEN ; 284: 285: : D? ( <name> -- flag ) 286: \G return true if debug flag is defined or switched on 287: \G while compiling we do not return the current value but 288: bl word count debug? ; 289: 290: : [d?] 291: \G compile the value-xt so the debug flag can be switched 292: \G the flag must exist! 293: bl word count debugflags-wl search-wordlist 294: IF compile, 295: ELSE -1 ABORT" unknown debug flag" 296: \ POSTPONE false 297: THEN ; immediate 298: 299: \ \ -------------------- source file 300: 301: decimal 302: 303: Variable cross-file-list 304: 0 cross-file-list ! 305: Variable target-file-list 306: 0 target-file-list ! 307: Variable host-file-list 308: 0 host-file-list ! 309: 310: cross-file-list Value file-list 311: 0 Value source-desc 312: 313: \ file loading 314: 315: : >fl-id 1 cells + ; 316: : >fl-name 2 cells + ; 317: 318: Variable filelist 0 filelist ! 319: Create NoFile ," #load-file#" 320: 321: : loadfile ( -- adr ) 322: source-desc ?dup IF >fl-name ELSE NoFile THEN ; 323: 324: : sourcefilename ( -- adr len ) 325: loadfile count ; 326: 327: \ANSI : sourceline# 0 ; 328: 329: \ \ -------------------- path handling from kernel/paths.fs 330: 331: \ paths.fs path file handling 03may97jaw 332: 333: \ -Changing the search-path: 334: \ fpath+ <path> adds a directory to the searchpath 335: \ fpath= <path>|<path> makes complete now searchpath 336: \ seperator is | 337: \ .fpath displays the search path 338: \ remark I: 339: \ a ./ in the beginning of filename is expanded to the directory the 340: \ current file comes from. ./ can also be included in the search-path! 341: \ ~+/ loads from the current working directory 342: 343: \ remark II: 344: \ if there is no sufficient space for the search path increase it! 345: 346: 347: \ -Creating custom paths: 348: 349: \ It is possible to use the search mechanism on yourself. 350: 351: \ Make a buffer for the path: 352: \ create mypath 100 chars , \ maximum length (is checked) 353: \ 0 , \ real len 354: \ 100 chars allot \ space for path 355: \ use the same functions as above with: 356: \ mypath path+ 357: \ mypath path= 358: \ mypath .path 359: 360: \ do a open with the search path: 361: \ open-path-file ( adr len path -- fd adr len ior ) 362: \ the file is opened read-only; if the file is not found an error is generated 363: 364: \ questions to: wilke@jwdt.com 365: 366: [IFUNDEF] +place 367: : +place ( adr len adr ) 368: 2dup >r >r 369: dup c@ char+ + swap move 370: r> r> dup c@ rot + swap c! ; 371: [THEN] 372: 373: [IFUNDEF] place 374: : place ( c-addr1 u c-addr2 ) 375: 2dup c! char+ swap move ; 376: [THEN] 377: 378: \ if we have path handling, use this and the setup of it 379: [IFUNDEF] open-fpath-file 380: 381: create sourcepath 1024 chars , 0 , 1024 chars allot \ !! make this dynamic 382: sourcepath value fpath 383: 384: : also-path ( adr len path^ -- ) 385: >r 386: \ len check 387: r@ cell+ @ over + r@ @ u> ABORT" path buffer too small!" 388: \ copy into 389: tuck r@ cell+ dup @ cell+ + swap cmove 390: \ make delimiter 391: 0 r@ cell+ dup @ cell+ + 2 pick + c! 1 + r> cell+ +! 392: ; 393: 394: : only-path ( adr len path^ -- ) 395: dup 0 swap cell+ ! also-path ; 396: 397: : path+ ( path-addr "dir" -- ) \ gforth 398: \G Add the directory @var{dir} to the search path @var{path-addr}. 399: name rot also-path ; 400: 401: : fpath+ ( "dir" ) \ gforth 402: \G Add directory @var{dir} to the Forth search path. 403: fpath path+ ; 404: 405: : path= ( path-addr "dir1|dir2|dir3" ) \ gforth 406: \G Make a complete new search path; the path separator is |. 407: name 2dup bounds ?DO i c@ [char] | = IF 0 i c! THEN LOOP 408: rot only-path ; 409: 410: : fpath= ( "dir1|dir2|dir3" ) \ gforth 411: \G Make a complete new Forth search path; the path separator is |. 412: fpath path= ; 413: 414: : path>counted cell+ dup cell+ swap @ ; 415: 416: : next-path ( adr len -- adr2 len2 ) 417: 2dup 0 scan 418: dup 0= IF 2drop 0 -rot 0 -rot EXIT THEN 419: >r 1+ -rot r@ 1- -rot 420: r> - ; 421: 422: : previous-path ( path^ -- ) 423: dup path>counted 424: BEGIN tuck dup WHILE repeat ; 425: 426: : .path ( path-addr -- ) \ gforth 427: \G Display the contents of the search path @var{path-addr}. 428: path>counted 429: BEGIN next-path dup WHILE type space REPEAT 2drop 2drop ; 430: 431: : .fpath ( -- ) \ gforth 432: \G Display the contents of the Forth search path. 433: fpath .path ; 434: 435: : absolut-path? ( addr u -- flag ) \ gforth 436: \G A path is absolute if it starts with a / or a ~ (~ expansion), 437: \G or if it is in the form ./*, extended regexp: ^[/~]|./, or if 438: \G it has a colon as second character ("C:..."). Paths simply 439: \G containing a / are not absolute! 440: 2dup 2 u> swap 1+ c@ [char] : = and >r \ dos absoulte: c:/.... 441: over c@ [char] / = >r 442: over c@ [char] ~ = >r 443: \ 2dup 3 min S" ../" compare 0= r> or >r \ not catered for in expandtopic 444: 2 min S" ./" compare 0= 445: r> r> r> or or or ; 446: 447: Create ofile 0 c, 255 chars allot 448: Create tfile 0 c, 255 chars allot 449: 450: : pathsep? dup [char] / = swap [char] \ = or ; 451: 452: : need/ ofile dup c@ + c@ pathsep? 0= IF s" /" ofile +place THEN ; 453: 454: : extractpath ( adr len -- adr len2 ) 455: BEGIN dup WHILE 1- 456: 2dup + c@ pathsep? IF EXIT THEN 457: REPEAT ; 458: 459: : remove~+ ( -- ) 460: ofile count 3 min s" ~+/" compare 0= 461: IF 462: ofile count 3 /string ofile place 463: THEN ; 464: 465: : expandtopic ( -- ) \ stack effect correct? - anton 466: \ expands "./" into an absolute name 467: ofile count 2 min s" ./" compare 0= 468: IF 469: ofile count 1 /string tfile place 470: 0 ofile c! sourcefilename extractpath ofile place 471: ofile c@ IF need/ THEN 472: tfile count over c@ pathsep? IF 1 /string THEN 473: ofile +place 474: THEN ; 475: 476: : compact.. ( adr len -- adr2 len2 ) 477: \ deletes phrases like "xy/.." out of our directory name 2dec97jaw 478: over swap 479: BEGIN dup WHILE 480: dup >r '/ scan 2dup 4 min s" /../" compare 0= 481: IF 482: dup r> - >r 4 /string over r> + 4 - 483: swap 2dup + >r move dup r> over - 484: ELSE 485: rdrop dup 1 min /string 486: THEN 487: REPEAT drop over - ; 488: 489: : reworkdir ( -- ) 490: remove~+ 491: ofile count compact.. 492: nip ofile c! ; 493: 494: : open-ofile ( -- fid ior ) 495: \G opens the file whose name is in ofile 496: expandtopic reworkdir 497: ofile count r/o open-file ; 498: 499: : check-path ( adr1 len1 adr2 len2 -- fd 0 | 0 <>0 ) 500: 0 ofile ! >r >r ofile place need/ 501: r> r> ofile +place 502: open-ofile ; 503: 504: : open-path-file ( addr1 u1 path-addr -- wfileid addr2 u2 0 | ior ) \ gforth 505: \G Look in path @var{path-addr} for the file specified by @var{addr1 u1}. 506: \G If found, the resulting path and an open file descriptor 507: \G are returned. If the file is not found, @var{ior} is non-zero. 508: >r 509: 2dup absolut-path? 510: IF rdrop 511: ofile place open-ofile 512: dup 0= IF >r ofile count r> THEN EXIT 513: ELSE r> path>counted 514: BEGIN next-path dup 515: WHILE 5 pick 5 pick check-path 516: 0= IF >r 2drop 2drop r> ofile count 0 EXIT ELSE drop THEN 517: REPEAT 518: 2drop 2drop 2drop -38 519: THEN ; 520: 521: : open-fpath-file ( addr1 u1 -- wfileid addr2 u2 0 | ior ) \ gforth 522: \G Look in the Forth search path for the file specified by @var{addr1 u1}. 523: \G If found, the resulting path and an open file descriptor 524: \G are returned. If the file is not found, @var{ior} is non-zero. 525: fpath open-path-file ; 526: 527: fpath= ~+ 528: 529: [THEN] 530: 531: \ \ -------------------- include require 13may99jaw 532: 533: >CROSS 534: 535: : add-included-file ( adr len -- adr ) 536: dup >fl-name char+ allocate throw >r 537: file-list @ r@ ! r@ file-list ! 538: r@ >fl-name place r> ; 539: 540: : included? ( c-addr u -- f ) 541: file-list 542: BEGIN @ dup 543: WHILE >r 2dup r@ >fl-name count compare 0= 544: IF rdrop 2drop true EXIT THEN 545: r> 546: REPEAT 547: 2drop drop false ; 548: 549: false DebugFlag showincludedfiles 550: 551: : included1 ( fd adr u -- ) 552: \ include file adr u / fd 553: \ we don't use fd with include-file, because the forth system 554: \ doesn't know the name of the file to get a nice error report 555: [d?] showincludedfiles 556: IF cr ." Including: " 2dup type ." ..." THEN 557: rot close-file throw 558: source-desc >r 559: add-included-file to source-desc 560: sourcefilename 561: ['] included catch 562: r> to source-desc 563: throw ; 564: 565: : included ( adr len -- ) 566: cross-file-list to file-list 567: open-fpath-file throw 568: included1 ; 569: 570: : required ( adr len -- ) 571: cross-file-list to file-list 572: open-fpath-file throw \ 2dup cr ." R:" type 573: 2dup included? 574: IF 2drop close-file throw 575: ELSE included1 576: THEN ; 577: 578: : include bl word count included ; 579: 580: : require bl word count required ; 581: 582: 0 [IF] 583: 584: also forth definitions previous 585: 586: : included ( adr len -- ) included ; 587: 588: : required ( adr len -- ) required ; 589: 590: : include include ; 591: 592: : require require ; 593: 594: [THEN] 595: 596: >CROSS 597: hex 598: 599: \ \ -------------------- Error Handling 05aug97jaw 600: 601: \ Flags 602: 603: also forth definitions \ these values may be predefined before 604: \ the cross-compiler is loaded 605: 606: false DefaultValue stack-warn \ check on empty stack at any definition 607: false DefaultValue create-forward-warn \ warn on forward declaration of created words 608: 609: previous >CROSS 610: 611: : .dec 612: base @ decimal swap . base ! ; 613: 614: : .sourcepos 615: cr sourcefilename type ." :" 616: sourceline# .dec ; 617: 618: : warnhead 619: \G display error-message head 620: \G perhaps with linenumber and filename 621: .sourcepos ." Warning: " ; 622: 623: : empty? depth IF .sourcepos ." Stack not empty!" THEN ; 624: 625: stack-warn [IF] 626: : defempty? empty? ; 627: [ELSE] 628: : defempty? ; immediate 629: [THEN] 630: 631: \ Ghost Builder 06oct92py 632: 633: hex 634: 4711 Constant <fwd> 4712 Constant <res> 635: 4713 Constant <imm> 4714 Constant <do:> 636: 4715 Constant <skip> 637: 638: 1 Constant <unique> 639: 640: Struct 641: 642: \ link to next ghost (always the first element) 643: cell% field >next-ghost 644: 645: \ type of ghost 646: cell% field >magic 647: 648: \ pointer where ghost is in target, or if unresolved 649: \ points to the where we have to resolve (linked-list) 650: cell% field >link 651: 652: \ execution symantics (while target compiling) of ghost 653: cell% field >exec 654: 655: cell% field >exec-compile 656: 657: cell% field >exec2 658: 659: cell% field >created 660: 661: \ the xt of the created ghost word itself 662: cell% field >ghost-xt 663: 664: \ pointer to the counted string of the assiciated 665: \ assembler label 666: cell% field >asm-name 667: 668: \ mapped primitives have a special address, so 669: \ we are able to detect them 670: cell% field >asm-dummyaddr 671: 672: \ for builder (create, variable...) words 673: \ the execution symantics of words built are placed here 674: \ this is a doer ghost or a dummy ghost 675: cell% field >do:ghost 676: 677: cell% field >ghost-flags 678: 679: cell% field >ghost-name 680: 681: End-Struct ghost-struct 682: 683: Variable ghost-list 684: 0 ghost-list ! 685: 686: Variable executed-ghost \ last executed ghost, needed in tcreate and gdoes> 687: \ Variable last-ghost \ last ghost that is created 688: Variable last-header-ghost \ last ghost definitions with header 689: 690: \ space for ghosts resolve structure 691: \ we create ghosts in a sepearte space 692: \ and not to the current host dp, because this 693: \ gives trouble with instant while compiling and creating 694: \ a ghost for a forward reference 695: \ BTW: we cannot allocate another memory region 696: \ because allot will check the overflow!! 697: Variable cross-space-dp 698: Create cross-space 250000 allot here 100 allot align 699: Constant cross-space-end 700: cross-space cross-space-dp ! 701: Variable cross-space-dp-orig 702: 703: : cross-space-used cross-space-dp @ cross-space - ; 704: 705: : >space ( -- ) 706: dp @ cross-space-dp-orig ! 707: cross-space-dp @ dp ! ; 708: 709: : space> ( -- ) 710: dp @ dup cross-space-dp ! 711: cross-space-end u> ABORT" CROSS: cross-space overflow" 712: cross-space-dp-orig @ dp ! ; 713: 714: : execute-exec execute ; 715: : execute-exec2 execute ; 716: : execute-exec-compile execute ; 717: 718: : NoExec 719: executed-ghost @ >exec2 @ 720: ?dup 721: IF execute-exec2 722: ELSE true ABORT" CROSS: Don't execute ghost, or immediate target word" 723: THEN ; 724: 725: : (ghostheader) ( -- ) 726: ghost-list linked <fwd> , 0 , ['] NoExec , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , ; 727: 728: : ghostheader ( -- ) (ghostheader) 0 , ; 729: 730: ' Ghosts >wordlist Constant ghosts-wordlist 731: 732: \ the current wordlist for ghost definitions in the host 733: ghosts-wordlist Value current-ghosts 734: 735: : Make-Ghost ( "name" -- ghost ) 736: >space 737: \ save current and create in ghost vocabulary 738: get-current >r current-ghosts set-current 739: >in @ Create >in ! 740: \ some forth systems like iForth need the immediate directly 741: \ after the word is created 742: \ restore current 743: r> set-current 744: here (ghostheader) 745: bl word count string, align 746: space> 747: \ set ghost-xt field by doing a search 748: dup >ghost-name count 749: current-ghosts search-wordlist 750: 0= ABORT" CROSS: Just created, must be there!" 751: over >ghost-xt ! 752: DOES> 753: dup executed-ghost ! 754: >exec @ execute-exec ; 755: 756: \ ghost words 14oct92py 757: \ changed: 10may93py/jaw 758: 759: Defer search-ghosts 760: 761: : (search-ghosts) ( adr len -- cfa true | 0 ) 762: current-ghosts search-wordlist ; 763: 764: ' (search-ghosts) IS search-ghosts 765: 766: : gsearch ( addr len -- ghost true | 0 ) 767: search-ghosts 768: dup IF swap >body swap THEN ; 769: 770: : gfind ( string -- ghost true / string false ) 771: \ searches for string in word-list ghosts 772: \ dup count type space 773: dup >r count gsearch 774: dup IF rdrop ELSE r> swap THEN ; 775: 776: : gdiscover ( xt -- ghost true | xt false ) 777: >r ghost-list 778: BEGIN @ dup 779: WHILE dup >magic @ <fwd> <> 780: IF dup >link @ r@ = 781: IF rdrop true EXIT THEN 782: THEN 783: REPEAT 784: drop r> false ; 785: 786: : Ghost ( "name" -- ghost ) 787: >in @ bl word gfind IF nip EXIT THEN 788: drop >in ! Make-Ghost ; 789: 790: : >ghostname ( ghost -- adr len ) 791: >ghost-name count ; 792: 793: : forward? ( ghost -- flag ) 794: >magic @ <fwd> = ; 795: 796: : undefined? ( ghost -- flag ) 797: >magic @ dup <fwd> = swap <skip> = or ; 798: 799: : immediate? ( ghost -- flag ) 800: >magic @ <imm> = ; 801: 802: Variable TWarnings 803: TWarnings on 804: Variable Exists-Warnings 805: Exists-Warnings on 806: 807: : exists-warning ( ghost -- ghost ) 808: TWarnings @ Exists-Warnings @ and 809: IF dup >ghostname warnhead type ." exists " THEN ; 810: 811: \ : HeaderGhost Ghost ; 812: 813: Variable reuse-ghosts reuse-ghosts off 814: 815: 1 [IF] \ FIXME: define when vocs are ready 816: : HeaderGhost ( "name" -- ghost ) 817: >in @ 818: bl word count 819: \ 2dup type space 820: current-ghosts search-wordlist 821: IF >body dup undefined? reuse-ghosts @ or 822: IF nip EXIT 823: ELSE exists-warning 824: THEN 825: drop >in ! 826: ELSE >in ! 827: THEN 828: \ we keep the execution semantics of the prviously 829: \ defined words, this is a workaround 830: \ for the redefined \ until vocs work 831: Make-Ghost ; 832: [THEN] 833: 834: 835: : .ghost ( ghost -- ) >ghostname type ; 836: 837: \ ' >ghostname ALIAS @name 838: 839: : [G'] ( -- ghost : name ) 840: \G ticks a ghost and returns its address 841: \ bl word gfind 0= ABORT" CROSS: Ghost don't exists" 842: ghost state @ IF postpone literal THEN ; immediate 843: 844: : ghost>cfa ( ghost -- cfa ) 845: dup undefined? ABORT" CROSS: forward " >link @ ; 846: 847: 1 Constant <label> 848: 849: Struct 850: \ bitmask of address type (not used for now) 851: cell% field addr-type 852: \ if this address is an xt, this field points to the ghost 853: cell% field addr-xt-ghost 854: \ a bit mask that tells as what part of the cell 855: \ is refenced from an address pointer, used for assembler generation 856: cell% field addr-refs 857: End-Struct addr-struct 858: 859: : %allocerase ( align size -- addr ) 860: dup >r %alloc dup r> erase ; 861: 862: \ returns the addr struct, define it if 0 reference 863: : define-addr-struct ( addr -- struct-addr ) 864: dup @ ?dup IF nip EXIT THEN 865: addr-struct %allocerase tuck swap ! ; 866: 867: \ Predefined ghosts 12dec92py 868: 869: Ghost 0= drop 870: Ghost branch Ghost ?branch 2drop 871: Ghost (do) Ghost (?do) 2drop 872: Ghost (for) drop 873: Ghost (loop) Ghost (+loop) 2drop 874: Ghost (next) drop 875: Ghost unloop Ghost ;S 2drop 876: Ghost lit Ghost (compile) Ghost ! 2drop drop 877: Ghost (does>) Ghost noop 2drop 878: Ghost (.") Ghost (S") Ghost (ABORT") 2drop drop 879: Ghost ' drop 880: Ghost :docol Ghost :doesjump Ghost :dodoes 2drop drop 881: Ghost :dovar drop 882: Ghost over Ghost = Ghost drop 2drop drop 883: Ghost - drop 884: Ghost 2drop drop 885: Ghost 2dup drop 886: 887: 888: 889: \ \ Parameter for target systems 06oct92py 890: 891: 892: >cross 893: \ we define it ans like... 894: wordlist Constant target-environment 895: 896: \ save information of current dictionary to restore with environ> 897: Variable env-current 898: 899: : >ENVIRON get-current env-current ! target-environment set-current ; 900: : ENVIRON> env-current @ set-current ; 901: 902: >TARGET 903: 904: : environment? ( addr len -- [ x ] true | false ) 905: \G returns the content of environment variable and true or 906: \G false if not present 907: target-environment search-wordlist 908: IF EXECUTE true ELSE false THEN ; 909: 910: : $has? ( addr len -- x | false ) 911: \G returns the content of environment variable 912: \G or false if not present 913: T environment? H dup IF drop THEN ; 914: 915: : e? ( "name" -- x ) 916: \G returns the content of environment variable. 917: \G The variable is expected to exist. If not, issue an error. 918: bl word count T environment? H 919: 0= ABORT" environment variable not defined!" ; 920: 921: : has? ( "name" --- x | false ) 922: \G returns the content of environment variable 923: \G or false if not present 924: bl word count T $has? H ; 925: 926: 927: >ENVIRON get-order get-current swap 1+ set-order 928: true SetValue compiler 929: true SetValue cross 930: true SetValue standard-threading 931: >TARGET previous 932: 933: 0 934: [IFDEF] mach-file drop mach-file count 1 [THEN] 935: [IFDEF] machine-file drop machine-file 1 [THEN] 936: [IF] included hex 937: [ELSE] cr ." No machine description!" ABORT 938: [THEN] 939: 940: >ENVIRON 941: 942: T has? ec H 943: [IF] 944: false DefaultValue relocate 945: false DefaultValue file 946: false DefaultValue OS 947: false DefaultValue prims 948: false DefaultValue floating 949: false DefaultValue glocals 950: false DefaultValue dcomps 951: false DefaultValue hash 952: false DefaultValue xconds 953: false DefaultValue header 954: [THEN] 955: 956: true DefaultValue interpreter 957: true DefaultValue ITC 958: false DefaultValue rom 959: true DefaultValue standardthreading 960: 961: >TARGET 962: s" relocate" T environment? H 963: \ JAW why set NIL to this?! 964: [IF] drop \ SetValue NIL 965: [ELSE] >ENVIRON T NIL H SetValue relocate 966: [THEN] 967: 968: >CROSS 969: 970: \ \ Create additional parameters 19jan95py 971: 972: \ currently cross only works for host machines with address-unit-bits 973: \ eual to 8 because of s! and sc! 974: \ but I start to query the environment just to modularize a little bit 975: 976: : check-address-unit-bits ( -- ) 977: \ s" ADDRESS-UNIT-BITS" environment? 978: \ IF 8 <> ELSE true THEN 979: \ ABORT" ADDRESS-UNIT-BITS unknown or not equal to 8!" 980: 981: \ shit, this doesn't work because environment? is only defined for 982: \ gforth.fi and not kernl???.fi 983: ; 984: 985: check-address-unit-bits 986: 8 Constant bits/byte \ we define: byte is address-unit 987: 988: 1 bits/byte lshift Constant maxbyte 989: \ this sets byte size for the target machine, (probably right guess) jaw 990: 991: T 992: NIL Constant TNIL 993: cell Constant tcell 994: cell<< Constant tcell<< 995: cell>bit Constant tcell>bit 996: bits/char Constant tbits/char 997: bits/char H bits/byte T / 998: Constant tchar 999: float Constant tfloat 1000: 1 bits/char lshift Constant tmaxchar 1001: [IFUNDEF] bits/byte 1002: 8 Constant tbits/byte 1003: [ELSE] 1004: bits/byte Constant tbits/byte 1005: [THEN] 1006: H 1007: tbits/char bits/byte / Constant tbyte 1008: 1009: 1010: \ Variables 06oct92py 1011: 1012: Variable image 1013: Variable tlast TNIL tlast ! \ Last name field 1014: Variable tlastcfa \ Last code field 1015: Variable bit$ 1016: 1017: \ statistics 10jun97jaw 1018: 1019: Variable headers-named 0 headers-named ! 1020: Variable user-vars 0 user-vars ! 1021: 1022: : target>bitmask-size ( u1 -- u2 ) 1023: 1- tcell>bit rshift 1+ ; 1024: 1025: : allocatetarget ( size --- adr ) 1026: dup allocate ABORT" CROSS: No memory for target" 1027: swap over swap erase ; 1028: 1029: \ \ memregion.fs 1030: 1031: 1032: Variable last-defined-region \ pointer to last defined region 1033: Variable region-link \ linked list with all regions 1034: Variable mirrored-link \ linked list for mirrored regions 1035: 0 dup mirrored-link ! region-link ! 1036: 1037: 1038: : >rname 7 cells + ; 1039: : >rbm 4 cells + ; 1040: : >rmem 5 cells + ; 1041: : >rtype 6 cells + ; 1042: : >rlink 3 cells + ; 1043: : >rdp 2 cells + ; 1044: : >rlen cell+ ; 1045: : >rstart ; 1046: 1047: 1048: : region ( addr len -- ) 1049: \G create a new region 1050: \ check whether predefined region exists 1051: save-input bl word find >r >r restore-input throw r> r> 0= 1052: IF \ make region 1053: drop 1054: save-input create restore-input throw 1055: here last-defined-region ! 1056: over ( startaddr ) , ( length ) , ( dp ) , 1057: region-link linked 0 , 0 , 0 , bl word count string, 1058: ELSE \ store new parameters in region 1059: bl word drop 1060: >body >r r@ last-defined-region ! 1061: r@ >rlen ! dup r@ >rstart ! r> >rdp ! 1062: THEN ; 1063: 1064: : borders ( region -- startaddr endaddr ) 1065: \G returns lower and upper region border 1066: dup >rstart @ swap >rlen @ over + ; 1067: 1068: : extent ( region -- startaddr len ) 1069: \G returns the really used area 1070: dup >rstart @ swap >rdp @ over - ; 1071: 1072: : area ( region -- startaddr totallen ) 1073: \G returns the total area 1074: dup >rstart @ swap >rlen @ ; 1075: 1076: : mirrored 1077: \G mark a region as mirrored 1078: mirrored-link 1079: align linked last-defined-region @ , ; 1080: 1081: : .addr ( u -- ) 1082: \G prints a 16 or 32 Bit nice hex value 1083: base @ >r hex 1084: tcell 2 u> 1085: IF s>d <# # # # # [char] . hold # # # # #> type 1086: ELSE s>d <# # # # # # #> type 1087: THEN r> base ! space ; 1088: 1089: : .regions \G display region statistic 1090: 1091: \ we want to list the regions in the right order 1092: \ so first collect all regions on stack 1093: 0 region-link @ 1094: BEGIN dup WHILE dup @ REPEAT drop 1095: BEGIN dup 1096: WHILE cr 1097: 0 >rlink - >r 1098: r@ >rname count tuck type 1099: 12 swap - 0 max spaces space 1100: ." Start: " r@ >rstart @ dup .addr space 1101: ." End: " r@ >rlen @ + .addr space 1102: ." DP: " r> >rdp @ .addr 1103: REPEAT drop 1104: s" rom" T $has? H 0= ?EXIT 1105: cr ." Mirrored:" 1106: mirrored-link @ 1107: BEGIN dup 1108: WHILE space dup cell+ @ >rname count type @ 1109: REPEAT drop cr 1110: ; 1111: 1112: \ -------- predefined regions 1113: 1114: 0 0 region address-space 1115: \ total memory addressed and used by the target system 1116: 1117: 0 0 region dictionary 1118: \ rom area for the compiler 1119: 1120: T has? rom H 1121: [IF] 1122: 0 0 region ram-dictionary mirrored 1123: \ ram area for the compiler 1124: [ELSE] 1125: ' dictionary ALIAS ram-dictionary 1126: [THEN] 1127: 1128: 0 0 region return-stack 1129: 1130: 0 0 region data-stack 1131: 1132: 0 0 region tib-region 1133: 1134: ' dictionary ALIAS rom-dictionary 1135: 1136: 1137: : setup-target ( -- ) \G initialize targets memory space 1138: s" rom" T $has? H 1139: IF \ check for ram and rom... 1140: \ address-space area nip 0<> 1141: ram-dictionary area nip 0<> 1142: rom-dictionary area nip 0<> 1143: and 0= 1144: ABORT" CROSS: define address-space, rom- , ram-dictionary, with rom-support!" 1145: THEN 1146: address-space area nip 1147: IF 1148: address-space area 1149: ELSE 1150: dictionary area 1151: THEN 1152: nip 0= 1153: ABORT" CROSS: define at least address-space or dictionary!!" 1154: 1155: \ allocate target for each region 1156: region-link 1157: BEGIN @ dup 1158: WHILE dup 1159: 0 >rlink - >r 1160: r@ >rlen @ 1161: IF \ allocate mem 1162: r@ >rlen @ allocatetarget dup image ! 1163: r@ >rmem ! 1164: 1165: r@ >rlen @ 1166: target>bitmask-size allocatetarget 1167: dup bit$ ! 1168: r@ >rbm ! 1169: 1170: r@ >rlen @ 1171: tcell / 1+ cells allocatetarget r@ >rtype ! 1172: 1173: rdrop 1174: ELSE r> drop THEN 1175: REPEAT drop ; 1176: 1177: \ MakeKernal 22feb99jaw 1178: 1179: : makekernel ( targetsize -- targetsize ) 1180: dup dictionary >rlen ! setup-target ; 1181: 1182: >MINIMAL 1183: : makekernel makekernel ; 1184: >CROSS 1185: 1186: \ \ switched tdp for rom support 03jun97jaw 1187: 1188: \ second value is here to store some maximal value for statistics 1189: \ tempdp is also embedded here but has nothing to do with rom support 1190: \ (needs switched dp) 1191: 1192: variable tempdp 0 , \ temporary dp for resolving 1193: variable tempdp-save 1194: 1195: 0 [IF] 1196: variable romdp 0 , \ Dictionary-Pointer for ramarea 1197: variable ramdp 0 , \ Dictionary-Pointer for romarea 1198: 1199: \ 1200: variable sramdp \ start of ram-area for forth 1201: variable sromdp \ start of rom-area for forth 1202: 1203: [THEN] 1204: 1205: 1206: 0 value tdp 1207: variable fixed \ flag: true: no automatic switching 1208: \ false: switching is done automatically 1209: 1210: \ Switch-Policy: 1211: \ 1212: \ a header is always compiled into rom 1213: \ after a created word (create and variable) compilation goes to ram 1214: \ 1215: \ Be careful: If you want to make the data behind create into rom 1216: \ you have to put >rom before create! 1217: 1218: variable constflag constflag off 1219: 1220: : activate ( region -- ) 1221: \G next code goes to this region 1222: >rdp to tdp ; 1223: 1224: : (switchram) 1225: fixed @ ?EXIT s" rom" T $has? H 0= ?EXIT 1226: ram-dictionary activate ; 1227: 1228: : switchram 1229: constflag @ 1230: IF constflag off ELSE (switchram) THEN ; 1231: 1232: : switchrom 1233: fixed @ ?EXIT rom-dictionary activate ; 1234: 1235: : >tempdp ( addr -- ) 1236: tdp tempdp-save ! tempdp to tdp tdp ! ; 1237: : tempdp> ( -- ) 1238: tempdp-save @ to tdp ; 1239: 1240: : >ram fixed off (switchram) fixed on ; 1241: : >rom fixed off switchrom fixed on ; 1242: : >auto fixed off switchrom ; 1243: 1244: 1245: 1246: \ : romstart dup sromdp ! romdp ! ; 1247: \ : ramstart dup sramdp ! ramdp ! ; 1248: 1249: \ default compilation goes to rom 1250: \ when romable support is off, only the rom switch is used (!!) 1251: >auto 1252: 1253: : there tdp @ ; 1254: 1255: >TARGET 1256: 1257: \ \ Target Memory Handling 1258: 1259: \ Byte ordering and cell size 06oct92py 1260: 1261: : cell+ tcell + ; 1262: : cells tcell<< lshift ; 1263: : chars tchar * ; 1264: : char+ tchar + ; 1265: : floats tfloat * ; 1266: 1267: >CROSS 1268: : cell/ tcell<< rshift ; 1269: >TARGET 1270: 20 CONSTANT bl 1271: \ TNIL Constant NIL 1272: 1273: >CROSS 1274: 1275: bigendian 1276: [IF] 1277: : S! ( n addr -- ) >r s>d r> tcell bounds swap 1- 1278: DO maxbyte ud/mod rot I c! -1 +LOOP 2drop ; 1279: : S@ ( addr -- n ) >r 0 0 r> tcell bounds 1280: DO maxbyte * swap maxbyte um* rot + swap I c@ + swap LOOP d>s ; 1281: : Sc! ( n addr -- ) >r s>d r> tchar bounds swap 1- 1282: DO maxbyte ud/mod rot I c! -1 +LOOP 2drop ; 1283: : Sc@ ( addr -- n ) >r 0 0 r> tchar bounds 1284: DO maxbyte * swap maxbyte um* rot + swap I c@ + swap LOOP d>s ; 1285: [ELSE] 1286: : S! ( n addr -- ) >r s>d r> tcell bounds 1287: DO maxbyte ud/mod rot I c! LOOP 2drop ; 1288: : S@ ( addr -- n ) >r 0 0 r> tcell bounds swap 1- 1289: DO maxbyte * swap maxbyte um* rot + swap I c@ + swap -1 +LOOP d>s ; 1290: : Sc! ( n addr -- ) >r s>d r> tchar bounds 1291: DO maxbyte ud/mod rot I c! LOOP 2drop ; 1292: : Sc@ ( addr -- n ) >r 0 0 r> tchar bounds swap 1- 1293: DO maxbyte * swap maxbyte um* rot + swap I c@ + swap -1 +LOOP d>s ; 1294: [THEN] 1295: 1296: : taddr>region ( taddr -- region | 0 ) 1297: \G finds for a target-address the correct region 1298: \G returns 0 if taddr is not in range of a target memory region 1299: region-link 1300: BEGIN @ dup 1301: WHILE dup >r 1302: 0 >rlink - >r 1303: r@ >rlen @ 1304: IF dup r@ borders within 1305: IF r> r> drop nip EXIT THEN 1306: THEN 1307: r> drop 1308: r> 1309: REPEAT 1310: 2drop 0 ; 1311: 1312: : taddr>region-abort ( taddr -- region | 0 ) 1313: dup taddr>region dup 0= 1314: IF drop cr ." Wrong address: " .addr 1315: -1 ABORT" Address out of range!" 1316: THEN nip ; 1317: 1318: : (>regionimage) ( taddr -- 'taddr ) 1319: dup 1320: \ find region we want to address 1321: taddr>region-abort 1322: >r 1323: \ calculate offset in region 1324: r@ >rstart @ - 1325: \ add regions real address in our memory 1326: r> >rmem @ + ; 1327: 1328: : (>regionbm) ( taddr -- 'taddr bitmaskbaseaddr ) 1329: dup 1330: \ find region we want to address 1331: taddr>region-abort 1332: >r 1333: \ calculate offset in region 1334: r@ >rstart @ - 1335: \ add regions real address in our memory 1336: r> >rbm @ ; 1337: 1338: : (>regiontype) ( taddr -- 'taddr ) 1339: dup 1340: \ find region we want to address 1341: taddr>region-abort 1342: >r 1343: \ calculate offset in region 1344: r@ >rstart @ - tcell / cells 1345: \ add regions real address in our memory 1346: r> >rtype @ + ; 1347: 1348: \ Bit string manipulation 06oct92py 1349: \ 9may93jaw 1350: CREATE Bittable 80 c, 40 c, 20 c, 10 c, 8 c, 4 c, 2 c, 1 c, 1351: : bits ( n -- n ) chars Bittable + c@ ; 1352: 1353: : >bit ( addr n -- c-addr mask ) 8 /mod rot + swap bits ; 1354: : +bit ( addr n -- ) >bit over c@ or swap c! ; 1355: : -bit ( addr n -- ) >bit invert over c@ and swap c! ; 1356: 1357: : @relbit ( taddr -- f ) (>regionbm) swap cell/ >bit swap c@ and ; 1358: 1359: : (relon) ( taddr -- ) 1360: [ [IFDEF] fd-relocation-table ] 1361: s" +" fd-relocation-table write-file throw 1362: dup s>d <# #s #> fd-relocation-table write-line throw 1363: [ [THEN] ] 1364: (>regionbm) swap cell/ +bit ; 1365: 1366: : (reloff) ( taddr -- ) 1367: [ [IFDEF] fd-relocation-table ] 1368: s" -" fd-relocation-table write-file throw 1369: dup s>d <# #s #> fd-relocation-table write-line throw 1370: [ [THEN] ] 1371: (>regionbm) swap cell/ -bit ; 1372: 1373: : (>image) ( taddr -- absaddr ) image @ + ; 1374: 1375: DEFER >image 1376: DEFER relon 1377: DEFER reloff 1378: DEFER correcter 1379: 1380: T has? relocate H 1381: [IF] 1382: ' (relon) IS relon 1383: ' (reloff) IS reloff 1384: ' (>regionimage) IS >image 1385: [ELSE] 1386: ' drop IS relon 1387: ' drop IS reloff 1388: ' (>regionimage) IS >image 1389: [THEN] 1390: 1391: \ Target memory access 06oct92py 1392: 1393: : align+ ( taddr -- rest ) 1394: tcell tuck 1- and - [ tcell 1- ] Literal and ; 1395: : cfalign+ ( taddr -- rest ) 1396: \ see kernel.fs:cfaligned 1397: /maxalign tuck 1- and - [ /maxalign 1- ] Literal and ; 1398: 1399: >TARGET 1400: : aligned ( taddr -- ta-addr ) dup align+ + ; 1401: \ assumes cell alignment granularity (as GNU C) 1402: 1403: : cfaligned ( taddr1 -- taddr2 ) 1404: \ see kernel.fs 1405: dup cfalign+ + ; 1406: 1407: : @ ( taddr -- w ) >image S@ ; 1408: : ! ( w taddr -- ) >image S! ; 1409: : c@ ( taddr -- char ) >image Sc@ ; 1410: : c! ( char taddr -- ) >image Sc! ; 1411: : 2@ ( taddr -- x1 x2 ) T dup cell+ @ swap @ H ; 1412: : 2! ( x1 x2 taddr -- ) T tuck ! cell+ ! H ; 1413: 1414: \ Target compilation primitives 06oct92py 1415: \ included A! 16may93jaw 1416: 1417: : here ( -- there ) there ; 1418: : allot ( n -- ) tdp +! ; 1419: : , ( w -- ) T here H tcell T allot ! H ; 1420: : c, ( char -- ) T here H tchar T allot c! H ; 1421: : align ( -- ) T here H align+ 0 ?DO bl T c, H tchar +LOOP ; 1422: : cfalign ( -- ) 1423: T here H cfalign+ 0 ?DO bl T c, H tchar +LOOP ; 1424: 1425: : >address dup 0>= IF tbyte / THEN ; \ ?? jaw 1426: : A! swap >address swap dup relon T ! H ; 1427: : A, ( w -- ) >address T here H relon T , H ; 1428: 1429: 1430: >CROSS 1431: 1432: : tcmove ( source dest len -- ) 1433: \G cmove in target memory 1434: tchar * bounds 1435: ?DO dup T c@ H I T c! H 1+ 1436: tchar +LOOP drop ; 1437: 1438: 1439: \ \ Load Assembler 1440: 1441: >TARGET 1442: H also Forth definitions 1443: 1444: : X bl word count [ ' target >wordlist ] Literal search-wordlist 1445: IF state @ IF compile, 1446: ELSE execute THEN 1447: ELSE -1 ABORT" Cross: access method not supported!" 1448: THEN ; immediate 1449: 1450: [IFDEF] asm-include asm-include [THEN] hex 1451: 1452: previous 1453: 1454: \ \ -------------------- Host/Target copy etc. 29aug01jaw 1455: 1456: 1457: >CROSS 1458: 1459: : th-count ( taddr -- host-addr len ) 1460: \G returns host address of target string 1461: assert1( tbyte 1 = ) 1462: dup X c@ swap X char+ >image swap ; 1463: 1464: : ht-move ( haddr taddr len -- ) 1465: \G moves data from host-addr to destination in target-addr 1466: \G character by character 1467: swap -rot bounds ?DO I c@ over X c! X char+ LOOP drop ; 1468: 1469: 2Variable last-string 1470: 1471: : ht-string, ( addr count -- ) 1472: dup there swap last-string 2! 1473: dup T c, H bounds ?DO I c@ T c, H LOOP ; 1474: 1475: >TARGET 1476: 1477: : count dup X c@ swap X char+ swap ; 1478: \ FIXME -1 on 64 bit machines?!?! 1479: : on T -1 swap ! H ; 1480: : off T 0 swap ! H ; 1481: 1482: \ \ -------------------- Compiler Plug Ins 01aug97jaw 1483: 1484: >CROSS 1485: 1486: \ Compiler States 1487: 1488: Variable comp-state 1489: 0 Constant interpreting 1490: 1 Constant compiling 1491: 2 Constant resolving 1492: 3 Constant assembling 1493: 1494: : compiling? comp-state @ compiling = ; 1495: 1496: : Plugin ( -- : pluginname ) 1497: Create 1498: ['] noop , \ action 1499: ['] noop , \ target plugin action 1500: 8765 , \ plugin magic 1501: DOES> perform ; 1502: 1503: Plugin DummyPlugin 1504: 1505: : 'PI ( -- addr : pluginname ) 1506: ' >body dup 2 cells + @ 8765 <> ABORT" not a plugin" ; 1507: 1508: : plugin-of ( xt -- : pluginname ) 1509: dup 'PI 2! ; 1510: 1511: : action-of ( xt -- : plunginname ) 1512: 'PI cell+ ! ; 1513: 1514: : TPA ( -- : plugin ) 1515: \ target plugin action 1516: \ executes current target action of plugin 1517: 'PI cell+ POSTPONE literal POSTPONE perform ; immediate 1518: 1519: Variable ppi-temp 0 ppi-temp ! 1520: 1521: : pa: 1522: \g define plugin action 1523: ppi-temp @ ABORT" pa: definition not closed" 1524: 'PI ppi-temp ! :noname ; 1525: 1526: : ;pa 1527: \g end a definition for plugin action 1528: POSTPONE ; ppi-temp @ ! 0 ppi-temp ! ; immediate 1529: 1530: 1531: Plugin lit, ( n -- ) 1532: Plugin alit, ( n -- ) 1533: 1534: Plugin branch, ( target-addr -- ) \ compiles a branch 1535: Plugin ?branch, ( target-addr -- ) \ compiles a ?branch 1536: Plugin branchmark, ( -- branch-addr ) \ reserves room for a branch 1537: Plugin ?branchmark, ( -- branch-addr ) \ reserves room for a ?branch 1538: Plugin ?domark, ( -- branch-addr ) \ reserves room for a ?do branch 1539: Plugin branchto, ( -- ) \ actual program position is target of a branch (do e.g. alignment) 1540: Plugin branchtoresolve, ( branch-addr -- ) \ resolves a forward reference from branchmark 1541: Plugin branchtomark, ( -- target-addr ) \ marks a branch destination 1542: 1543: Plugin colon, ( tcfa -- ) \ compiles call to tcfa at current position 1544: Plugin colonmark, ( -- addr ) \ marks a colon call 1545: Plugin colon-resolve ( tcfa addr -- ) 1546: 1547: Plugin addr-resolve ( target-addr addr -- ) 1548: Plugin doer-resolve ( ghost res-pnt target-addr addr -- ghost res-pnt ) 1549: 1550: Plugin ncontrols? ( [ xn ... x1 ] n -- ) \ checks wheter n control structures are open 1551: Plugin if, ( -- if-token ) 1552: Plugin else, ( if-token -- if-token ) 1553: Plugin then, ( if-token -- ) 1554: Plugin ahead, 1555: Plugin begin, 1556: Plugin while, 1557: Plugin until, 1558: Plugin again, 1559: Plugin repeat, 1560: Plugin cs-swap ( x1 x2 -- x2 x1 ) 1561: 1562: Plugin case, ( -- n ) 1563: Plugin of, ( n -- x1 n ) 1564: Plugin endof, ( x1 n -- x2 n ) 1565: Plugin endcase, ( x1 .. xn n -- ) 1566: 1567: Plugin do, ( -- do-token ) 1568: Plugin ?do, ( -- ?do-token ) 1569: Plugin for, ( -- for-token ) 1570: Plugin loop, ( do-token / ?do-token -- ) 1571: Plugin +loop, ( do-token / ?do-token -- ) 1572: Plugin next, ( for-token ) 1573: Plugin leave, ( -- ) 1574: Plugin ?leave, ( -- ) 1575: 1576: [IFUNDEF] ca>native 1577: Plugin ca>native 1578: [THEN] 1579: 1580: Plugin doprim, \ compiles start of a primitive 1581: Plugin docol, \ compiles start of a colon definition 1582: Plugin doer, 1583: Plugin fini, \ compiles end of definition ;s 1584: Plugin doeshandler, 1585: Plugin dodoes, 1586: 1587: Plugin colon-start 1588: Plugin colon-end 1589: 1590: Plugin ]comp \ starts compilation 1591: Plugin comp[ \ ends compilation 1592: 1593: T 2 cells H Value xt>body 1594: 1595: Plugin t>body \ we need the system >body 1596: \ and the target >body 1597: 1598: >TARGET 1599: : >body t>body ; 1600: >CROSS 1601: 1602: : (cc) T a, H ; ' (cc) plugin-of colon, 1603: 1604: : (cr) >tempdp ]comp colon, comp[ tempdp> ; ' (cr) plugin-of colon-resolve 1605: : (ar) T ! H ; ' (ar) plugin-of addr-resolve 1606: : (dr) ( ghost res-pnt target-addr addr ) 1607: >tempdp drop over 1608: dup >magic @ <do:> = 1609: IF doer, 1610: ELSE dodoes, 1611: THEN 1612: tempdp> ; ' (dr) plugin-of doer-resolve 1613: 1614: : (cm) ( -- addr ) 1615: T here align H 1616: -1 colon, ; ' (cm) plugin-of colonmark, 1617: 1618: >TARGET 1619: : compile, colon, ; 1620: >CROSS 1621: 1622: \ resolve structure 1623: 1624: : >next ; \ link to next field 1625: : >tag cell+ ; \ indecates type of reference: 0: call, 1: address, 2: doer 1626: : >taddr cell+ cell+ ; 1627: : >ghost 3 cells + ; 1628: : >file 4 cells + ; 1629: : >line 5 cells + ; 1630: 1631: : (refered) ( ghost addr tag -- ) 1632: \G creates a reference to ghost at address taddr 1633: >space 1634: rot >link linked 1635: ( taddr tag ) , 1636: ( taddr ) , 1637: last-header-ghost @ , 1638: loadfile , 1639: sourceline# , 1640: space> 1641: ; 1642: 1643: : refered ( ghost tag -- ) 1644: \G creates a resolve structure 1645: T here aligned H swap (refered) 1646: ; 1647: 1648: : killref ( addr ghost -- ) 1649: \G kills a forward reference to ghost at position addr 1650: \G this is used to eleminate a :dovar refence after making a DOES> 1651: dup >magic @ <fwd> <> IF 2drop EXIT THEN 1652: swap >r >link 1653: BEGIN dup @ dup ( addr last this ) 1654: WHILE dup >taddr @ r@ = 1655: IF @ over ! 1656: ELSE nip THEN 1657: REPEAT rdrop 2drop 1658: ; 1659: 1660: Defer resolve-warning 1661: 1662: : reswarn-test ( ghost res-struct -- ghost res-struct ) 1663: over cr ." Resolving " .ghost dup ." in " >ghost @ .ghost ; 1664: 1665: : reswarn-forward ( ghost res-struct -- ghost res-struct ) 1666: over warnhead .ghost dup ." is referenced in " 1667: >ghost @ .ghost ; 1668: 1669: \ ' reswarn-test IS resolve-warning 1670: 1671: \ resolve 14oct92py 1672: 1673: : resolve-loop ( ghost resolve-list tcfa -- ) 1674: >r 1675: BEGIN dup WHILE 1676: \ dup >tag @ 2 = IF reswarn-forward THEN 1677: resolve-warning 1678: r@ over >taddr @ 1679: 2 pick >tag @ 1680: CASE 0 OF colon-resolve ENDOF 1681: 1 OF addr-resolve ENDOF 1682: 2 OF doer-resolve ENDOF 1683: ENDCASE 1684: @ \ next list element 1685: REPEAT 2drop rdrop 1686: ; 1687: 1688: \ : resolve-loop ( ghost tcfa -- ghost tcfa ) 1689: \ >r dup >link @ 1690: \ BEGIN dup WHILE dup T @ H r@ rot T ! H REPEAT drop r> ; 1691: 1692: \ exists 9may93jaw 1693: 1694: : exists ( ghost tcfa -- ) 1695: \G print warning and set new target link in ghost 1696: swap exists-warning 1697: >link ! ; 1698: 1699: Variable rdbg 1700: 1701: : resolve ( ghost tcfa -- ) 1702: \G resolve referencies to ghost with tcfa 1703: rdbg @ IF break: THEN 1704: dup taddr>region 0<> IF 1705: 2dup (>regiontype) define-addr-struct addr-xt-ghost 1706: 1707: \ we define new address only if empty 1708: \ this is for not to overtake the alias ghost 1709: \ but the very first that really defines it 1710: \ FIXME: define when HeaderGhost is ready 1711: dup @ 0= IF ! ELSE 2drop THEN 1712: \ ! 1713: THEN 1714: 1715: \ is ghost resolved?, second resolve means another 1716: \ definition with the same name 1717: over undefined? 0= IF exists EXIT THEN 1718: \ get linked-list 1719: swap >r r@ >link @ swap \ ( list tcfa R: ghost ) 1720: \ mark ghost as resolved 1721: dup r@ >link ! <res> r@ >magic ! 1722: \ loop through forward referencies 1723: r> -rot 1724: comp-state @ >r Resolving comp-state ! 1725: resolve-loop 1726: r> comp-state ! 1727: 1728: ['] noop IS resolve-warning 1729: ; 1730: 1731: \ gexecute ghost, 01nov92py 1732: 1733: : is-forward ( ghost -- ) 1734: colonmark, 0 (refered) ; \ compile space for call 1735: 1736: : is-resolved ( ghost -- ) 1737: >link @ colon, ; \ compile-call 1738: 1739: : (gexecute) ( ghost -- ) 1740: dup >magic @ 1741: <fwd> = IF is-forward ELSE is-resolved THEN ; 1742: 1743: : gexecute ( ghost -- ) 1744: \ dup >magic @ <imm> = IF -1 ABORT" CROSS: gexecute on immediate word" THEN 1745: (gexecute) ; 1746: 1747: : addr, ( ghost -- ) 1748: dup >magic @ <fwd> = IF 1 refered 0 T a, H ELSE >link @ T a, H THEN ; 1749: 1750: \ !! : ghost, ghost gexecute ; 1751: 1752: \ .unresolved 11may93jaw 1753: 1754: variable ResolveFlag 1755: 1756: \ ?touched 11may93jaw 1757: 1758: : ?touched ( ghost -- flag ) dup forward? swap >link @ 1759: 0 <> and ; 1760: 1761: : .forwarddefs ( ghost -- ) 1762: ." appeared in:" 1763: >link 1764: BEGIN @ dup 1765: WHILE cr 5 spaces 1766: dup >ghost @ .ghost 1767: ." file " dup >file @ ?dup IF count type ELSE ." CON" THEN 1768: ." line " dup >line @ .dec 1769: REPEAT 1770: drop ; 1771: 1772: : ?resolved ( ghost -- ) 1773: dup ?touched 1774: IF ResolveFlag on 1775: dup cr .ghost .forwarddefs 1776: ELSE drop 1777: THEN ; 1778: 1779: : .unresolved ( -- ) 1780: ResolveFlag off cr ." Unresolved: " 1781: ghost-list 1782: BEGIN @ dup 1783: WHILE dup ?resolved 1784: REPEAT drop ResolveFlag @ 1785: IF 1786: -1 abort" Unresolved words!" 1787: ELSE 1788: ." Nothing!" 1789: THEN 1790: cr ; 1791: 1792: : .stats 1793: base @ >r decimal 1794: cr ." named Headers: " headers-named @ . 1795: r> base ! ; 1796: 1797: >MINIMAL 1798: 1799: : .unresolved .unresolved ; 1800: 1801: >CROSS 1802: \ Header states 12dec92py 1803: 1804: \ : flag! ( 8b -- ) tlast @ dup >r T c@ xor r> c! H ; 1805: bigendian [IF] 0 [ELSE] tcell 1- [THEN] Constant flag+ 1806: : flag! ( w -- ) tlast @ flag+ + dup >r T c@ xor r> c! H ; 1807: 1808: VARIABLE ^imm 1809: 1810: >TARGET 1811: : immediate 40 flag! 1812: ^imm @ @ dup <imm> = IF drop EXIT THEN 1813: <res> <> ABORT" CROSS: Cannot immediate a unresolved word" 1814: <imm> ^imm @ ! ; 1815: : restrict 20 flag! ; 1816: 1817: : isdoer 1818: \G define a forth word as doer, this makes obviously only sence on 1819: \G forth processors such as the PSC1000 1820: <do:> last-header-ghost @ >magic ! ; 1821: >CROSS 1822: 1823: \ Target Header Creation 01nov92py 1824: 1825: : ht-lstring, ( addr count -- ) 1826: dup T , H bounds ?DO I c@ T c, H LOOP ; 1827: 1828: >TARGET 1829: : name, ( "name" -- ) bl word count ht-lstring, X cfalign ; 1830: : view, ( -- ) ( dummy ) ; 1831: >CROSS 1832: 1833: \ Target Document Creation (goes to crossdoc.fd) 05jul95py 1834: 1835: s" ./doc/crossdoc.fd" r/w create-file throw value doc-file-id 1836: \ contains the file-id of the documentation file 1837: 1838: : T-\G ( -- ) 1839: source >in @ /string doc-file-id write-line throw 1840: postpone \ ; 1841: 1842: Variable to-doc to-doc on 1843: 1844: : cross-doc-entry ( -- ) 1845: to-doc @ tlast @ 0<> and \ not an anonymous (i.e. noname) header 1846: IF 1847: s" " doc-file-id write-line throw 1848: s" make-doc " doc-file-id write-file throw 1849: 1850: tlast @ >image count 1F and doc-file-id write-file throw 1851: >in @ 1852: [char] ( parse 2drop 1853: [char] ) parse doc-file-id write-file throw 1854: s" )" doc-file-id write-file throw 1855: [char] \ parse 2drop 1856: T-\G 1857: >in ! 1858: THEN ; 1859: 1860: \ Target TAGS creation 1861: 1862: s" kernel.TAGS" r/w create-file throw value tag-file-id 1863: \ contains the file-id of the tags file 1864: 1865: Create tag-beg 2 c, 7F c, bl c, 1866: Create tag-end 2 c, bl c, 01 c, 1867: Create tag-bof 1 c, 0C c, 1868: 1869: 2variable last-loadfilename 0 0 last-loadfilename 2! 1870: 1871: : put-load-file-name ( -- ) 1872: sourcefilename last-loadfilename 2@ d<> 1873: IF 1874: tag-bof count tag-file-id write-line throw 1875: sourcefilename 2dup 1876: tag-file-id write-file throw 1877: last-loadfilename 2! 1878: s" ,0" tag-file-id write-line throw 1879: THEN ; 1880: 1881: : cross-tag-entry ( -- ) 1882: tlast @ 0<> \ not an anonymous (i.e. noname) header 1883: IF 1884: put-load-file-name 1885: source >in @ min tag-file-id write-file throw 1886: tag-beg count tag-file-id write-file throw 1887: tlast @ >image count 1F and tag-file-id write-file throw 1888: tag-end count tag-file-id write-file throw 1889: base @ decimal sourceline# 0 <# #s #> tag-file-id write-file throw 1890: \ >in @ 0 <# #s [char] , hold #> tag-file-id write-line throw 1891: s" ,0" tag-file-id write-line throw 1892: base ! 1893: THEN ; 1894: 1895: \ Check for words 1896: 1897: Defer skip? ' false IS skip? 1898: 1899: : skipdef ( "name" -- ) 1900: \G skip definition of an undefined word in undef-words and 1901: \G all-words mode 1902: Ghost dup forward? 1903: IF >magic <skip> swap ! 1904: ELSE drop THEN ; 1905: 1906: : tdefined? ( "name" -- flag ) 1907: Ghost undefined? 0= ; 1908: 1909: : defined2? ( "name" -- flag ) 1910: \G return true for anything else than forward, even for <skip> 1911: \G that's what we want 1912: Ghost forward? 0= ; 1913: 1914: : forced? ( "name" -- flag ) 1915: \G return ture if it is a foreced skip with defskip 1916: Ghost >magic @ <skip> = ; 1917: 1918: : needed? ( -- flag ) \ name 1919: \G returns a false flag when 1920: \G a word is not defined 1921: \G a forward reference exists 1922: \G so the definition is not skipped! 1923: bl word gfind 1924: IF dup undefined? 1925: nip 1926: 0= 1927: ELSE drop true THEN ; 1928: 1929: : doer? ( -- flag ) \ name 1930: Ghost >magic @ <do:> = ; 1931: 1932: : skip-defs ( -- ) 1933: BEGIN refill WHILE source -trailing nip 0= UNTIL THEN ; 1934: 1935: \ Target header creation 1936: 1937: Variable NoHeaderFlag 1938: NoHeaderFlag off 1939: 1940: : 0.r ( n1 n2 -- ) 1941: base @ >r hex 1942: 0 swap <# 0 ?DO # LOOP #> type 1943: r> base ! ; 1944: 1945: : .sym ( adr len -- ) 1946: \G escapes / and \ to produce sed output 1947: bounds 1948: DO I c@ dup 1949: CASE [char] / OF drop ." \/" ENDOF 1950: [char] \ OF drop ." \\" ENDOF 1951: dup OF emit ENDOF 1952: ENDCASE 1953: LOOP ; 1954: 1955: Defer setup-execution-semantics 1956: 0 Value lastghost 1957: 1958: : (THeader ( "name" -- ghost ) 1959: \ >in @ bl word count type 2 spaces >in ! 1960: \ wordheaders will always be compiled to rom 1961: switchrom 1962: \ build header in target 1963: NoHeaderFlag @ 1964: IF NoHeaderFlag off 1965: ELSE 1966: T align H view, 1967: tlast @ dup 0> IF tcell - THEN T A, H there tlast ! 1968: 1 headers-named +! \ Statistic 1969: >in @ T name, H >in ! 1970: THEN 1971: T cfalign here H tlastcfa ! 1972: \ Old Symbol table sed-script 1973: \ >in @ cr ." sym:s/CFA=" there 4 0.r ." /" bl word count .sym ." /g" cr >in ! 1974: HeaderGhost 1975: \ output symbol table to extra file 1976: [ [IFDEF] fd-symbol-table ] 1977: base @ hex there s>d <# 8 0 DO # LOOP #> fd-symbol-table write-file throw base ! 1978: s" :" fd-symbol-table write-file throw 1979: dup >ghostname fd-symbol-table write-line throw 1980: [ [THEN] ] 1981: dup Last-Header-Ghost ! dup to lastghost 1982: dup >magic ^imm ! \ a pointer for immediate 1983: 80 flag! 1984: cross-doc-entry cross-tag-entry 1985: setup-execution-semantics 1986: ; 1987: 1988: \ this is the resolver information from ":" 1989: \ resolving is done by ";" 1990: Variable ;Resolve 1 cells allot 1991: 1992: : hereresolve ( ghost -- ) 1993: there resolve 0 ;Resolve ! ; 1994: 1995: : Theader ( "name" -- ghost ) 1996: (THeader dup hereresolve ; 1997: 1998: Variable aprim-nr -20 aprim-nr ! 1999: 2000: : copy-execution-semantics ( ghost-from ghost-dest -- ) 2001: >r 2002: dup >exec @ r@ >exec ! 2003: dup >exec2 @ r@ >exec2 ! 2004: dup >exec-compile @ r@ >exec-compile ! 2005: dup >ghost-xt @ r@ >ghost-xt ! 2006: dup >created @ r@ >created ! 2007: rdrop drop ; 2008: 2009: >TARGET 2010: 2011: : Alias ( cfa -- ) \ name 2012: >in @ skip? IF 2drop EXIT THEN >in ! 2013: (THeader ( S xt ghost ) 2014: 2dup swap gdiscover 0= ABORT" missing" swap copy-execution-semantics 2015: over resolve T A, H 80 flag! ; 2016: 2017: Variable last-prim-ghost 2018: 0 last-prim-ghost ! 2019: 2020: : asmprimname, ( ghost -- : name ) 2021: dup last-prim-ghost ! 2022: >r 2023: here bl word count string, r@ >asm-name ! 2024: aprim-nr @ r> >asm-dummyaddr ! ; 2025: 2026: Defer setup-prim-semantics 2027: 2028: : aprim ( -- ) 2029: THeader -1 aprim-nr +! aprim-nr @ T A, H 2030: asmprimname, 2031: setup-prim-semantics ; 2032: 2033: : aprim: ( -- ) 2034: -1 aprim-nr +! aprim-nr @ 2035: Ghost tuck swap resolve <do:> swap tuck >magic ! 2036: asmprimname, ; 2037: 2038: : Alias: ( cfa -- ) \ name 2039: >in @ skip? IF 2drop EXIT THEN >in ! 2040: dup 0< s" prims" T $has? H 0= and 2041: IF 2042: .sourcepos ." needs doer: " >in @ bl word count type >in ! cr 2043: THEN 2044: Ghost tuck swap resolve <do:> swap >magic ! ; 2045: 2046: Variable prim# 2047: : first-primitive ( n -- ) prim# ! ; 2048: : Primitive ( -- ) \ name 2049: >in @ skip? IF 2drop EXIT THEN >in ! 2050: dup 0< s" prims" T $has? H 0= and 2051: IF 2052: .sourcepos ." needs prim: " >in @ bl word count type >in ! cr 2053: THEN 2054: prim# @ (THeader ( S xt ghost ) 2055: over resolve T A, H 80 flag! 2056: -1 prim# +! ; 2057: >CROSS 2058: 2059: \ Conditionals and Comments 11may93jaw 2060: 2061: \G saves the existing cond action, this is used for redefining in 2062: \G instant 2063: Variable cond-xt-old 2064: 2065: : cond-target ( -- ) 2066: \G Compiles semantic of redefined cond into new one 2067: cond-xt-old @ compile, ; immediate restrict 2068: 2069: : ;Cond 2070: postpone ; 2071: swap ! ; immediate 2072: 2073: : Cond: ( "name" -- ) 2074: \g defines a conditional or another word that must 2075: \g be executed directly while compiling 2076: \g these words have no interpretative semantics by default 2077: Ghost 2078: >exec-compile 2079: dup @ cond-xt-old ! 2080: :NONAME ; 2081: 2082: 2083: : Comment ( -- ) 2084: >in @ Ghost swap >in ! ' swap 2085: 2dup >exec-compile ! >exec ! ; 2086: 2087: Comment ( Comment \ 2088: 2089: \ compile 10may93jaw 2090: 2091: : compile ( "name" -- ) \ name 2092: \ bl word gfind 0= ABORT" CROSS: Can't compile " 2093: ghost 2094: dup >exec-compile @ ?dup 2095: IF nip compile, 2096: ELSE postpone literal postpone gexecute THEN ; immediate restrict 2097: 2098: >TARGET 2099: 2100: : ' ( -- cfa ) 2101: \ returns the target-cfa of a ghost 2102: bl word gfind 0= ABORT" CROSS: Ghost don't exists" 2103: ghost>cfa ; 2104: 2105: \ FIXME: this works for the current use cases, but is not 2106: \ in all cases correct ;-) 2107: : comp' X ' 0 ; 2108: 2109: Cond: ['] T ' H alit, ;Cond 2110: 2111: >CROSS 2112: 2113: : [T'] 2114: \ returns the target-cfa of a ghost, or compiles it as literal 2115: postpone [G'] state @ IF postpone ghost>cfa ELSE ghost>cfa THEN ; immediate 2116: 2117: \ \ threading modell 13dec92py 2118: \ modularized 14jun97jaw 2119: 2120: : fillcfa ( usedcells -- ) 2121: T cells H xt>body swap - 0 ?DO 0 X c, tchar +LOOP ; 2122: 2123: : (>body) ( cfa -- pfa ) 2124: xt>body + ; ' (>body) plugin-of t>body 2125: 2126: : (doer,) ( ghost -- ) 2127: addr, 1 fillcfa ; ' (doer,) plugin-of doer, 2128: 2129: : (docol,) ( -- ) [G'] :docol (doer,) ; ' (docol,) plugin-of docol, 2130: 2131: : (doprim,) ( -- ) 2132: there xt>body + ca>native T a, H 1 fillcfa ; ' (doprim,) plugin-of doprim, 2133: 2134: : (doeshandler,) ( -- ) 2135: T cfalign H compile :doesjump T 0 , H ; ' (doeshandler,) plugin-of doeshandler, 2136: 2137: : (dodoes,) ( does-action-ghost -- ) 2138: ]comp [G'] :dodoes gexecute comp[ 2139: addr, 2140: \ the relocator in the c engine, does not like the 2141: \ does-address to marked for relocation 2142: [ T e? ec H 0= [IF] ] T here H tcell - reloff [ [THEN] ] 2143: 2 fillcfa ; ' (dodoes,) plugin-of dodoes, 2144: 2145: : (lit,) ( n -- ) compile lit T , H ; ' (lit,) plugin-of lit, 2146: 2147: \ if we dont produce relocatable code alit, defaults to lit, jaw 2148: \ this is just for convenience, so we don't have to define alit, 2149: \ seperately for embedded systems.... 2150: T has? relocate H 2151: [IF] 2152: : (alit,) ( n -- ) compile lit T a, H ; ' (alit,) plugin-of alit, 2153: [ELSE] 2154: : (alit,) ( n -- ) lit, ; ' (alit,) plugin-of alit, 2155: [THEN] 2156: 2157: : (fini,) compile ;s ; ' (fini,) plugin-of fini, 2158: 2159: [IFUNDEF] (code) 2160: Defer (code) 2161: Defer (end-code) 2162: [THEN] 2163: 2164: >TARGET 2165: : Code 2166: defempty? 2167: (THeader there resolve 2168: [ T e? prims H 0= [IF] T e? ITC H [ELSE] true [THEN] ] [IF] 2169: doprim, 2170: [THEN] 2171: depth (code) ; 2172: 2173: : Code: 2174: defempty? 2175: Ghost dup there ca>native resolve <do:> swap >magic ! 2176: depth (code) ; 2177: 2178: : end-code 2179: (end-code) 2180: depth ?dup IF 1- <> ABORT" CROSS: Stack changed" 2181: ELSE true ABORT" CROSS: Stack empty" THEN 2182: ; 2183: 2184: >CROSS 2185: 2186: \ tLiteral 12dec92py 2187: 2188: >TARGET 2189: Cond: \G T-\G ;Cond 2190: 2191: Cond: Literal ( n -- ) lit, ;Cond 2192: Cond: ALiteral ( n -- ) alit, ;Cond 2193: 2194: : Char ( "<char>" -- ) bl word char+ c@ ; 2195: Cond: [Char] ( "<char>" -- ) Char lit, ;Cond 2196: 2197: \ JAW Cond: chars ;Cond 2198: 2199: \ some special literals 27jan97jaw 2200: 2201: \ !! Known Bug: Special Literals and plug-ins work only correct 2202: \ on 16 and 32 Bit Targets and 32 Bit Hosts! 2203: 2204: Cond: MAXU 2205: tcell 1 cells u> 2206: IF compile lit tcell 0 ?DO FF T c, H LOOP 2207: ELSE ffffffff lit, THEN 2208: ;Cond 2209: 2210: Cond: MINI 2211: tcell 1 cells u> 2212: IF compile lit bigendian 2213: IF 80 T c, H tcell 1 ?DO 0 T c, H LOOP 2214: ELSE tcell 1 ?DO 0 T c, H LOOP 80 T c, H 2215: THEN 2216: ELSE tcell 2 = IF 8000 ELSE 80000000 THEN lit, THEN 2217: ;Cond 2218: 2219: Cond: MAXI 2220: tcell 1 cells u> 2221: IF compile lit bigendian 2222: IF 7F T c, H tcell 1 ?DO FF T c, H LOOP 2223: ELSE tcell 1 ?DO FF T c, H LOOP 7F T c, H 2224: THEN 2225: ELSE tcell 2 = IF 7fff ELSE 7fffffff THEN lit, THEN 2226: ;Cond 2227: 2228: >CROSS 2229: \ Target compiling loop 12dec92py 2230: \ ">tib trick thrown out 10may93jaw 2231: \ number? defined at the top 11may93jaw 2232: \ replaced >in by save-input 2233: 2234: : discard 0 ?DO drop LOOP ; 2235: 2236: \ compiled word might leave items on stack! 2237: : tcom ( x1 .. xn n name -- ) 2238: \ dup count type space 2239: gfind 2240: IF >r ( discard saved input state ) discard r> 2241: dup >exec-compile @ ?dup 2242: IF nip execute-exec-compile ELSE gexecute THEN 2243: EXIT 2244: THEN 2245: number? dup 2246: IF 0> IF swap lit, THEN lit, discard 2247: ELSE 2drop restore-input throw Ghost gexecute THEN ; 2248: 2249: >TARGET 2250: \ : ; DOES> 13dec92py 2251: \ ] 9may93py/jaw 2252: 2253: : ] 2254: Compiling comp-state ! 2255: \ if we have a state in target, change it with the compile state 2256: [G'] state dup undefined? 0= IF >ghost-xt @ execute X on ELSE drop THEN 2257: BEGIN 2258: BEGIN save-input bl word 2259: dup c@ 0= WHILE drop discard refill 0= 2260: ABORT" CROSS: End of file while target compiling" 2261: REPEAT 2262: tcom 2263: compiling? 0= 2264: UNTIL ; 2265: 2266: \ by the way: defining a second interpreter (a compiler-)loop 2267: \ is not allowed if a system should be ans conform 2268: 2269: : : ( -- colon-sys ) \ Name 2270: defempty? 2271: constflag off \ don't let this flag work over colon defs 2272: \ just to go sure nothing unwanted happens 2273: >in @ skip? IF drop skip-defs EXIT THEN >in ! 2274: (THeader ;Resolve ! there ;Resolve cell+ ! 2275: docol, ]comp colon-start depth T ] H ; 2276: 2277: : :noname ( -- colon-sys ) 2278: X cfalign 2279: \ FIXME: cleanup!!!!!!!! 2280: \ idtentical to : with dummy ghost?! 2281: here ghostheader dup ;Resolve ! dup last-header-ghost ! to lastghost 2282: there ;Resolve cell+ ! 2283: there docol, ]comp 2284: colon-start depth T ] H ; 2285: 2286: Cond: EXIT ( -- ) compile ;S ;Cond 2287: 2288: Cond: ?EXIT ( -- ) 1 abort" CROSS: using ?exit" ;Cond 2289: 2290: >CROSS 2291: : LastXT ;Resolve @ 0= abort" CROSS: no definition for LastXT" 2292: ;Resolve cell+ @ ; 2293: 2294: >TARGET 2295: 2296: Cond: recurse ( -- ) Last-Header-Ghost @ gexecute ;Cond 2297: 2298: Cond: ; ( -- ) 2299: depth ?dup IF 1- <> ABORT" CROSS: Stack changed" 2300: ELSE true ABORT" CROSS: Stack empty" THEN 2301: colon-end 2302: fini, 2303: comp[ 2304: ;Resolve @ 2305: IF ;Resolve @ ;Resolve cell+ @ resolve THEN 2306: [G'] state dup undefined? 0= IF >ghost-xt @ execute X off ELSE drop THEN 2307: Interpreting comp-state ! 2308: ;Cond 2309: Cond: [ 2310: \ if we have a state in target, change it with the compile state 2311: [G'] state dup undefined? 0= IF >ghost-xt @ execute X off ELSE drop THEN 2312: \ [G'] state dup undefined? 0= IF ghost>cfa X >body X off ELSE drop THEN 2313: Interpreting comp-state ! ;Cond 2314: 2315: >CROSS 2316: 2317: Create GhostDummy ghostheader 2318: <res> GhostDummy >magic ! 2319: 2320: : !does ( does-action -- ) 2321: \ !! zusammenziehen und dodoes, machen! 2322: tlastcfa @ [G'] :dovar killref 2323: \ tlastcfa @ dup there >r tdp ! compile :dodoes r> tdp ! T cell+ ! H ; 2324: \ !! geht so nicht, da dodoes, ghost will! 2325: GhostDummy >link ! GhostDummy 2326: tlastcfa @ >tempdp dodoes, tempdp> ; 2327: 2328: 2329: Defer instant-compile-does>-hook 2330: Defer instant-interpret-does>-hook 2331: 2332: : resolve-does>-part ( -- ) 2333: \ resolve words made by builders 2334: Last-Header-Ghost @ >do:ghost @ ?dup IF there resolve THEN ; 2335: 2336: >TARGET 2337: Cond: DOES> 2338: compile (does>) doeshandler, 2339: resolve-does>-part 2340: \ instant-compile-does>-hook 2341: ;Cond 2342: 2343: : DOES> switchrom doeshandler, T here H !does 2344: instant-interpret-does>-hook 2345: depth T ] H ; 2346: 2347: >CROSS 2348: \ Creation 01nov92py 2349: 2350: \ Builder 11may93jaw 2351: 2352: : Builder ( Create-xt do:-xt "name" -- ) 2353: \ builds up a builder in current vocabulary 2354: \ create-xt is executed when word is interpreted 2355: \ do:-xt is executet when the created word from builder is executed 2356: \ for do:-xt an additional entry after the normal ghost-enrys is used 2357: 2358: Make-Ghost ( Create-xt do:-xt ghost ) 2359: dup >created on 2360: rot swap ( do:-xt Create-xt ghost ) 2361: tuck >exec ! >do:ghost ! ; 2362: \ rot swap >exec dup @ ['] NoExec <> 2363: \ IF 2drop ELSE ! THEN , ; 2364: 2365: : gdoes, ( ghost -- ) 2366: \ makes the codefield for a word that is built 2367: >do:ghost @ dup undefined? 0= 2368: IF 2369: dup >magic @ <do:> = 2370: IF doer, 2371: ELSE dodoes, 2372: THEN 2373: EXIT 2374: THEN 2375: \ compile :dodoes gexecute 2376: \ T here H tcell - reloff 2377: 2 refered 2378: 0 fillcfa 2379: ; 2380: 2381: : takeover-x-semantics ( S constructor-ghost new-ghost -- ) 2382: \g stores execution semantic in the built word 2383: \g if the word already has a semantic (concerns S", IS, .", DOES>) 2384: \g then keep it 2385: swap >do:ghost @ >exec @ swap >exec2 ! ; 2386: \ >exec dup @ ['] NoExec = 2387: \ IF swap >do:ghost @ >exec @ swap ! ELSE 2drop THEN ; 2388: 2389: : TCreate ( <name> -- ) 2390: create-forward-warn 2391: IF ['] reswarn-forward IS resolve-warning THEN 2392: executed-ghost @ (Theader 2393: dup >created on 2394: 2dup takeover-x-semantics hereresolve gdoes, ; 2395: 2396: : RTCreate ( <name> -- ) 2397: \ creates a new word with code-field in ram 2398: create-forward-warn 2399: IF ['] reswarn-forward IS resolve-warning THEN 2400: \ make Alias 2401: executed-ghost @ (THeader 2402: dup >created on 2403: 2dup takeover-x-semantics 2404: there 0 T a, H 80 flag! 2405: \ store poiter to code-field 2406: switchram T cfalign H 2407: there swap T ! H 2408: there tlastcfa ! 2409: hereresolve gdoes, ; 2410: 2411: : Build: ( -- [xt] [colon-sys] ) 2412: :noname postpone TCreate ; 2413: 2414: : BuildSmart: ( -- [xt] [colon-sys] ) 2415: :noname 2416: [ T has? rom H [IF] ] 2417: postpone RTCreate 2418: [ [ELSE] ] 2419: postpone TCreate 2420: [ [THEN] ] ; 2421: 2422: : gdoes> ( ghost -- addr flag ) 2423: executed-ghost @ 2424: \ compiling? ABORT" CROSS: Executing gdoes> while compiling" 2425: \ ?! compiling? IF gexecute true EXIT THEN 2426: >link @ X >body ( false ) ; 2427: 2428: \ DO: ;DO 11may93jaw 2429: \ changed to ?EXIT 10may93jaw 2430: 2431: : DO: ( -- addr [xt] [colon-sys] ) 2432: here ghostheader 2433: :noname postpone gdoes> ( postpone ?EXIT ) ; 2434: 2435: : by: ( -- addr [xt] [colon-sys] ) \ name 2436: Ghost 2437: :noname postpone gdoes> ( postpone ?EXIT ) ; 2438: 2439: : ;DO ( addr [xt] [colon-sys] -- addr ) 2440: postpone ; ( S addr xt ) 2441: over >exec ! ; immediate 2442: 2443: : by ( -- addr ) \ Name 2444: Ghost >do:ghost @ ; 2445: 2446: >TARGET 2447: \ Variables and Constants 05dec92py 2448: 2449: Build: ( n -- ) ; 2450: by: :docon ( target-body-addr -- n ) T @ H ;DO 2451: Builder (Constant) 2452: 2453: Build: ( n -- ) T , H ; 2454: by (Constant) 2455: Builder Constant 2456: 2457: Build: ( n -- ) T A, H ; 2458: by (Constant) 2459: Builder AConstant 2460: 2461: Build: ( d -- ) T , , H ; 2462: DO: ( ghost -- d ) T dup cell+ @ swap @ H ;DO 2463: Builder 2Constant 2464: 2465: BuildSmart: ; 2466: by: :dovar ( target-body-addr -- addr ) ;DO 2467: Builder Create 2468: 2469: T has? rom H [IF] 2470: Build: ( -- ) T here 0 A, H switchram T align here swap ! 0 , H ( switchrom ) ; 2471: by (Constant) 2472: Builder Variable 2473: [ELSE] 2474: Build: T 0 , H ; 2475: by Create 2476: Builder Variable 2477: [THEN] 2478: 2479: T has? rom H [IF] 2480: Build: ( -- ) T here 0 A, H switchram T align here swap ! 0 , 0 , H ( switchrom ) ; 2481: by (Constant) 2482: Builder 2Variable 2483: [ELSE] 2484: Build: T 0 , 0 , H ; 2485: by Create 2486: Builder 2Variable 2487: [THEN] 2488: 2489: T has? rom H [IF] 2490: Build: ( -- ) T here 0 A, H switchram T align here swap ! 0 A, H ( switchrom ) ; 2491: by (Constant) 2492: Builder AVariable 2493: [ELSE] 2494: Build: T 0 A, H ; 2495: by Create 2496: Builder AVariable 2497: [THEN] 2498: 2499: \ User variables 04may94py 2500: 2501: >CROSS 2502: 2503: Variable tup 0 tup ! 2504: Variable tudp 0 tudp ! 2505: 2506: : u, ( n -- udp ) 2507: tup @ tudp @ + T ! H 2508: tudp @ dup T cell+ H tudp ! ; 2509: 2510: : au, ( n -- udp ) 2511: tup @ tudp @ + T A! H 2512: tudp @ dup T cell+ H tudp ! ; 2513: 2514: >TARGET 2515: 2516: Build: 0 u, X , ; 2517: by: :douser ( ghost -- up-addr ) X @ tup @ + ;DO 2518: Builder User 2519: 2520: Build: 0 u, X , 0 u, drop ; 2521: by User 2522: Builder 2User 2523: 2524: Build: 0 au, X , ; 2525: by User 2526: Builder AUser 2527: 2528: BuildSmart: T , H ; 2529: by (Constant) 2530: Builder Value 2531: 2532: BuildSmart: T A, H ; 2533: by (Constant) 2534: Builder AValue 2535: 2536: Defer texecute 2537: 2538: BuildSmart: ( -- ) [T'] noop T A, H ; 2539: by: :dodefer ( ghost -- ) X @ texecute ;DO 2540: Builder Defer 2541: 2542: Build: ( inter comp -- ) swap T immediate A, A, H ; 2543: DO: ( ghost -- ) ABORT" CROSS: Don't execute" ;DO 2544: Builder interpret/compile: 2545: 2546: \ Sturctures 23feb95py 2547: 2548: >CROSS 2549: : nalign ( addr1 n -- addr2 ) 2550: \ addr2 is the aligned version of addr1 wrt the alignment size n 2551: 1- tuck + swap invert and ; 2552: >TARGET 2553: 2554: Build: ; 2555: by: :dofield T @ H + ;DO 2556: Builder (Field) 2557: 2558: Build: ( align1 offset1 align size "name" -- align2 offset2 ) 2559: rot dup T , H ( align1 align size offset1 ) 2560: + >r nalign r> ; 2561: by (Field) 2562: Builder Field 2563: 2564: : struct T 1 chars 0 H ; 2565: : end-struct T 2Constant H ; 2566: 2567: : cell% ( n -- size align ) 2568: T 1 cells H dup ; 2569: 2570: 2571: 2572: Build: ( m v -- m' v ) dup T , cell+ H ; 2573: DO: abort" Not in cross mode" ;DO 2574: Builder input-method 2575: 2576: Build: ( m v size -- m v' ) over T , H + ; 2577: DO: abort" Not in cross mode" ;DO 2578: Builder input-var 2579: 2580: 2581: 2582: 2583: \ structural conditionals 17dec92py 2584: 2585: >CROSS 2586: : (ncontrols?) ( n -- ) 2587: \g We expect n open control structures 2588: depth over u<= 2589: ABORT" CROSS: unstructured, stack underflow" 2590: 0 ?DO I pick 0= 2591: ABORT" CROSS: unstructured" 2592: LOOP ; ' (ncontrols?) plugin-of ncontrols? 2593: 2594: \ : ?struc ( flag -- ) ABORT" CROSS: unstructured " ; 2595: \ : sys? ( sys -- sys ) dup 0= ?struc ; 2596: 2597: : >mark ( -- sys ) T here ( dup ." M" hex. ) 0 , H ; 2598: 2599: : branchoffset ( src dest -- ) - tchar / ; \ ?? jaw 2600: 2601: : >resolve ( sys -- ) 2602: X here ( dup ." >" hex. ) over branchoffset swap X ! ; 2603: 2604: : <resolve ( sys -- ) 2605: X here ( dup ." <" hex. ) branchoffset X , ; 2606: 2607: :noname compile branch X here branchoffset X , ; 2608: IS branch, ( target-addr -- ) 2609: :noname compile ?branch X here branchoffset X , ; 2610: IS ?branch, ( target-addr -- ) 2611: :noname compile branch T here 0 , H ; 2612: IS branchmark, ( -- branchtoken ) 2613: :noname compile ?branch T here 0 , H ; 2614: IS ?branchmark, ( -- branchtoken ) 2615: :noname T here 0 , H ; 2616: IS ?domark, ( -- branchtoken ) 2617: :noname dup X @ ?struc X here over branchoffset swap X ! ; 2618: IS branchtoresolve, ( branchtoken -- ) 2619: :noname branchto, X here ; 2620: IS branchtomark, ( -- target-addr ) 2621: 2622: >TARGET 2623: 2624: \ Structural Conditionals 12dec92py 2625: 2626: \ CLEANUP Cond: BUT sys? swap ;Cond 2627: \ CLEANUP Cond: YET sys? dup ;Cond 2628: 2629: >CROSS 2630: 2631: Variable tleavings 0 tleavings ! 2632: 2633: : (done) ( addr -- ) 2634: tleavings @ 2635: BEGIN dup 2636: WHILE 2637: >r dup r@ cell+ @ \ address of branch 2638: u> 0= \ lower than DO? 2639: WHILE 2640: r@ 2 cells + @ \ branch token 2641: branchtoresolve, 2642: r@ @ r> free throw 2643: REPEAT r> THEN 2644: tleavings ! drop ; 2645: 2646: >TARGET 2647: 2648: \ What for? ANS? JAW Cond: DONE ( addr -- ) (done) ;Cond 2649: 2650: >CROSS 2651: : (leave) ( branchtoken -- ) 2652: 3 cells allocate throw >r 2653: T here H r@ cell+ ! 2654: r@ 2 cells + ! 2655: tleavings @ r@ ! 2656: r> tleavings ! ; 2657: >TARGET 2658: 2659: : (leave,) ( -- ) 2660: branchmark, (leave) ; ' (leave,) plugin-of leave, 2661: 2662: : (?leave,) ( -- ) 2663: compile 0= ?branchmark, (leave) ; ' (?leave,) plugin-of ?leave, 2664: 2665: Cond: LEAVE leave, ;Cond 2666: Cond: ?LEAVE ?leave, ;Cond 2667: 2668: >CROSS 2669: \ !!JW ToDo : Move to general tools section 2670: 2671: : to1 ( x1 x2 xn n -- addr ) 2672: \G packs n stack elements in am allocated memory region 2673: dup dup 1+ cells allocate throw dup >r swap 1+ 2674: 0 DO tuck ! cell+ LOOP 2675: drop r> ; 2676: 2677: : 1to ( addr -- x1 x2 xn ) 2678: \G unpacks the elements saved by to1 2679: dup @ swap over cells + swap 2680: 0 DO dup @ swap 1 cells - LOOP 2681: free throw ; 2682: 2683: : loop] branchto, dup <resolve tcell - (done) ; 2684: 2685: : skiploop] ?dup IF branchto, branchtoresolve, THEN ; 2686: 2687: >TARGET 2688: 2689: \ Structural Conditionals 12dec92py 2690: 2691: : (cs-swap) ( x1 x2 -- x2 x1 ) 2692: swap ; ' (cs-swap) plugin-of cs-swap 2693: 2694: : (ahead,) branchmark, ; ' (ahead,) plugin-of ahead, 2695: 2696: : (if,) ?branchmark, ; ' (if,) plugin-of if, 2697: 2698: : (then,) branchto, branchtoresolve, ; ' (then,) plugin-of then, 2699: 2700: : (else,) ( ahead ) branchmark, 2701: swap 2702: ( then ) branchto, branchtoresolve, ; ' (else,) plugin-of else, 2703: 2704: : (begin,) branchtomark, ; ' (begin,) plugin-of begin, 2705: 2706: : (while,) ( if ) ?branchmark, 2707: swap ; ' (while,) plugin-of while, 2708: 2709: : (again,) branch, ; ' (again,) plugin-of again, 2710: 2711: : (until,) ?branch, ; ' (until,) plugin-of until, 2712: 2713: : (repeat,) ( again ) branch, 2714: ( then ) branchto, branchtoresolve, ; ' (repeat,) plugin-of repeat, 2715: 2716: : (case,) ( -- n ) 2717: 0 ; ' (case,) plugin-of case, 2718: 2719: : (of,) ( n -- x1 n ) 2720: 1+ >r 2721: compile over compile = 2722: if, compile drop r> ; ' (of,) plugin-of of, 2723: 2724: : (endof,) ( x1 n -- x2 n ) 2725: >r 1 ncontrols? else, r> ; ' (endof,) plugin-of endof, 2726: 2727: : (endcase,) ( x1 .. xn n -- ) 2728: compile drop 0 ?DO 1 ncontrols? then, LOOP ; ' (endcase,) plugin-of endcase, 2729: 2730: >TARGET 2731: Cond: AHEAD ahead, ;Cond 2732: Cond: IF if, ;Cond 2733: Cond: THEN 1 ncontrols? then, ;Cond 2734: Cond: ENDIF 1 ncontrols? then, ;Cond 2735: Cond: ELSE 1 ncontrols? else, ;Cond 2736: 2737: Cond: BEGIN begin, ;Cond 2738: Cond: WHILE 1 ncontrols? while, ;Cond 2739: Cond: AGAIN 1 ncontrols? again, ;Cond 2740: Cond: UNTIL 1 ncontrols? until, ;Cond 2741: Cond: REPEAT 2 ncontrols? repeat, ;Cond 2742: 2743: Cond: CASE case, ;Cond 2744: Cond: OF of, ;Cond 2745: Cond: ENDOF endof, ;Cond 2746: Cond: ENDCASE endcase, ;Cond 2747: 2748: \ Structural Conditionals 12dec92py 2749: 2750: : (do,) ( -- target-addr ) 2751: \ ?? i think 0 is too much! jaw 2752: 0 compile (do) 2753: branchtomark, 2 to1 ; ' (do,) plugin-of do, 2754: 2755: \ alternative for if no ?do 2756: \ : (do,) 2757: \ compile 2dup compile = compile IF 2758: \ compile 2drop compile ELSE 2759: \ compile (do) branchtomark, 2 to1 ; 2760: 2761: : (?do,) ( -- target-addr ) 2762: 0 compile (?do) ?domark, (leave) 2763: branchtomark, 2 to1 ; ' (?do,) plugin-of ?do, 2764: 2765: : (for,) ( -- target-addr ) 2766: compile (for) branchtomark, ; ' (for,) plugin-of for, 2767: 2768: : (loop,) ( target-addr -- ) 2769: 1to compile (loop) loop] 2770: compile unloop skiploop] ; ' (loop,) plugin-of loop, 2771: 2772: : (+loop,) ( target-addr -- ) 2773: 1to compile (+loop) loop] 2774: compile unloop skiploop] ; ' (+loop,) plugin-of +loop, 2775: 2776: : (next,) 2777: compile (next) loop] compile unloop ; ' (next,) plugin-of next, 2778: 2779: Cond: DO do, ;Cond 2780: Cond: ?DO ?do, ;Cond 2781: Cond: FOR for, ;Cond 2782: 2783: Cond: LOOP 1 ncontrols? loop, ;Cond 2784: Cond: +LOOP 1 ncontrols? +loop, ;Cond 2785: Cond: NEXT 1 ncontrols? next, ;Cond 2786: 2787: \ String words 23feb93py 2788: 2789: : ," [char] " parse ht-string, X align ; 2790: 2791: Cond: ." compile (.") T ," H ;Cond 2792: Cond: S" compile (S") T ," H ;Cond 2793: Cond: C" compile (C") T ," H ;Cond 2794: Cond: ABORT" compile (ABORT") T ," H ;Cond 2795: 2796: Cond: IS T ' >body H compile ALiteral compile ! ;Cond 2797: : IS T >address ' >body ! H ; 2798: Cond: TO T ' >body H compile ALiteral compile ! ;Cond 2799: : TO T ' >body ! H ; 2800: 2801: Cond: defers T ' >body @ compile, H ;Cond 2802: 2803: \ LINKED ERR" ENV" 2ENV" 18may93jaw 2804: 2805: \ linked list primitive 2806: : linked X here over X @ X A, swap X ! ; 2807: : chained T linked A, H ; 2808: 2809: : err" s" ErrLink linked" evaluate T , H 2810: [char] " parse ht-string, X align ; 2811: 2812: : env" [char] " parse s" EnvLink linked" evaluate 2813: ht-string, X align X , ; 2814: 2815: : 2env" [char] " parse s" EnvLink linked" evaluate 2816: here >r ht-string, X align X , X , 2817: r> dup T c@ H 80 and swap T c! H ; 2818: 2819: \ compile must be last 22feb93py 2820: 2821: Cond: [compile] ( -- ) \ name 2822: \g For immediate words, works even if forward reference 2823: bl word gfind 0= ABORT" CROSS: Can't compile" 2824: (gexecute) ;Cond 2825: 2826: Cond: postpone ( -- ) \ name 2827: bl word gfind 0= ABORT" CROSS: Can't compile" 2828: dup >magic @ <fwd> = 2829: ABORT" CROSS: Can't postpone on forward declaration" 2830: dup >magic @ <imm> = 2831: IF (gexecute) 2832: ELSE compile (compile) addr, THEN ;Cond 2833: 2834: \ save-cross 17mar93py 2835: 2836: hex 2837: 2838: >CROSS 2839: Create magic s" Gforth2x" here over allot swap move 2840: 2841: bigendian 1+ \ strangely, in magic big=0, little=1 2842: tcell 1 = 0 and or 2843: tcell 2 = 2 and or 2844: tcell 4 = 4 and or 2845: tcell 8 = 6 and or 2846: tchar 1 = 00 and or 2847: tchar 2 = 28 and or 2848: tchar 4 = 50 and or 2849: tchar 8 = 78 and or 2850: magic 7 + c! 2851: 2852: : save-cross ( "image-name" "binary-name" -- ) 2853: bl parse ." Saving to " 2dup type cr 2854: w/o bin create-file throw >r 2855: TNIL IF 2856: s" #! " r@ write-file throw 2857: bl parse r@ write-file throw 2858: s" --image-file" r@ write-file throw 2859: #lf r@ emit-file throw 2860: r@ dup file-position throw drop 8 mod 8 swap ( file-id limit index ) 2861: ?do 2862: bl over emit-file throw 2863: loop 2864: drop 2865: magic 8 r@ write-file throw \ write magic 2866: ELSE 2867: bl parse 2drop 2868: THEN 2869: image @ there 2870: r@ write-file throw \ write image 2871: TNIL IF 2872: bit$ @ there 1- tcell>bit rshift 1+ 2873: r@ write-file throw \ write tags 2874: THEN 2875: r> close-file throw ; 2876: 2877: : save-region ( addr len -- ) 2878: bl parse w/o bin create-file throw >r 2879: swap >image swap r@ write-file throw 2880: r> close-file throw ; 2881: 2882: 1 [IF] 2883: 2884: Variable name-ptr 2885: Create name-buf 200 chars allot 2886: : init-name-buf name-buf name-ptr ! ; 2887: : nb, name-ptr @ c! 1 chars name-ptr +! ; 2888: : $nb, ( adr len -- ) bounds ?DO I c@ nb, LOOP ; 2889: : @nb name-ptr @ name-buf tuck - ; 2890: 2891: \ stores a usefull string representation of the character 2892: \ in the name buffer 2893: : name-char, ( c -- ) 2894: dup 'a 'z 1+ within IF nb, EXIT THEN 2895: dup 'A 'Z 1+ within IF $20 + nb, EXIT THEN 2896: dup '0 '9 1+ within IF nb, EXIT THEN 2897: CASE '+ OF s" _PLUS" $nb, ENDOF 2898: '- OF s" _MINUS" $nb, ENDOF 2899: '* OF s" _STAR" $nb, ENDOF 2900: '/ OF s" _SLASH" $nb, ENDOF 2901: '' OF s" _TICK" $nb, ENDOF 2902: '( OF s" _OPAREN" $nb, ENDOF 2903: ') OF s" _CPAREN" $nb, ENDOF 2904: '[ OF s" _OBRACKET" $nb, ENDOF 2905: '] OF s" _CBRACKET" $nb, ENDOF 2906: '! OF s" _STORE" $nb, ENDOF 2907: '@ OF s" _FETCH" $nb, ENDOF 2908: '> OF s" _GREATER" $nb, ENDOF 2909: '< OF s" _LESS" $nb, ENDOF 2910: '= OF s" _EQUAL" $nb, ENDOF 2911: '# OF s" _HASH" $nb, ENDOF 2912: '? OF s" _QUEST" $nb, ENDOF 2913: ': OF s" _COL" $nb, ENDOF 2914: '; OF s" _SEMICOL" $nb, ENDOF 2915: ', OF s" _COMMA" $nb, ENDOF 2916: '. OF s" _DOT" $nb, ENDOF 2917: '" OF s" _DQUOT" $nb, ENDOF 2918: dup 2919: base @ >r hex s>d <# #s 'X hold '_ hold #> $nb, r> base ! 2920: ENDCASE ; 2921: 2922: : label-from-ghostname ( ghost -- addr len ) 2923: dup >ghostname init-name-buf 'L nb, bounds 2924: ?DO I c@ name-char, LOOP 2925: \ we add the address to a name to make in unique 2926: \ because one name may appear more then once 2927: \ there are names (e.g. boot) that may be reference from other 2928: \ assembler source files, so we declare them as unique 2929: \ and don't add the address suffix 2930: dup >ghost-flags @ <unique> and 0= 2931: IF s" __" $nb, >link @ base @ >r hex 0 <# #s 'L hold #> r> base ! $nb, 2932: ELSE drop 2933: THEN 2934: @nb ; 2935: 2936: : label-from-ghostnameXX ( ghost -- addr len ) 2937: \ same as (label-from-ghostname) but caches generated names 2938: dup >asm-name @ ?dup IF nip count EXIT THEN 2939: \ dup >r (label-from-ghostname) 2dup 2940: align here >r string, align 2941: r> r> >asm-name ! ; 2942: 2943: : primghostdiscover ( xt -- ghost true | xt false ) 2944: dup 0= IF false EXIT THEN 2945: >r last-prim-ghost 2946: BEGIN @ dup 2947: WHILE dup >asm-dummyaddr @ r@ = 2948: IF rdrop true EXIT THEN 2949: REPEAT 2950: drop r> false ; 2951: 2952: : gdiscover2 ( xt -- ghost true | xt false ) 2953: dup taddr>region 0= IF false EXIT THEN 2954: dup (>regiontype) @ dup 0= IF drop false EXIT THEN 2955: addr-xt-ghost @ dup 0= IF drop false EXIT THEN 2956: nip true ; 2957: \ dup >ghost-name @ IF nip true ELSE drop false THEN ; 2958: 2959: \ generates a label name for the target address 2960: : generate-label-name ( taddr -- addr len ) 2961: gdiscover2 2962: IF dup >magic @ <do:> = 2963: IF >asm-name @ count EXIT THEN 2964: label-from-ghostname 2965: ELSE 2966: primghostdiscover 2967: IF >asm-name @ count 2968: ELSE base @ >r hex 0 <# #s 'L hold #> r> base ! 2969: THEN 2970: THEN ; 2971: 2972: Variable outfile-fd 2973: 2974: : $out ( adr len -- ) outfile-fd @ write-file throw ; 2975: : nlout newline $out ; 2976: : .ux ( n -- ) 2977: base @ hex swap 0 <# #S #> $out base ! ; 2978: 2979: : save-asm-region-part-aligned ( taddr len -- 'taddr 'len ) 2980: dup cell/ 0 2981: ?DO nlout s" .word " $out over @relbit 2982: IF over X @ generate-label-name $out 2983: ELSE over X @ s" 0x0" $out .ux 2984: THEN 2985: tcell /string 2986: LOOP ; 2987: 2988: : print-bytes ( taddr len n -- taddr' len' ) 2989: over min dup 0> 2990: IF nlout s" .byte " $out 0 2991: ?DO I 0> IF s" , " $out THEN 2992: over X c@ s" 0x0" $out .ux 1 /string 2993: LOOP 2994: THEN ; 2995: 2996: : save-asm-region-part ( addr len -- ) 2997: over dup X aligned swap - ?dup 2998: IF print-bytes THEN 2999: save-asm-region-part-aligned 3000: dup dup X aligned swap - ?dup 3001: IF 2 pick @relbit ABORT" relocated field splitted" 3002: print-bytes 3003: THEN 3004: 2drop ; 3005: 3006: : print-label ( taddr -- ) 3007: nlout generate-label-name $out s" :" $out ; 3008: 3009: : snl-calc ( taddr taddr2 -- ) 3010: tuck over - ; 3011: 3012: : skip-nolables ( taddr -- taddr2 taddr len ) 3013: \G skips memory region where no lables are defined 3014: \G starting from taddr+1 3015: \G Labels will be introduced for each reference mark 3016: \G in addr-refs. 3017: \G This word deals with lables at byte addresses as well. 3018: \G The main idea is to have an intro part which 3019: \G skips until the next cell boundary, the middle part 3020: \G which skips whole cells very efficiently and the third 3021: \G part which skips the bytes to the label in a cell 3022: dup 1+ dup (>regiontype) 3023: ( S taddr taddr-realstart type-addr ) 3024: dup @ dup IF addr-refs @ THEN 3025: swap >r 3026: over align+ tuck tcell swap - rshift swap 0 3027: DO dup 1 and 3028: IF drop rdrop snl-calc UNLOOP EXIT THEN 3029: 2/ swap 1+ swap 3030: LOOP 3031: drop r> cell+ 3032: ( S .. taddr2 type-addr ) dup 3033: BEGIN dup @ dup IF addr-refs @ THEN 0= WHILE cell+ REPEAT 3034: dup >r swap - 1 cells / tcell * + r> 3035: ( S .. taddr2+skiplencells type-addr ) 3036: @ addr-refs @ 1 tcell lshift or 3037: BEGIN dup 1 and 0= WHILE swap 1+ swap 2/ REPEAT drop 3038: ( S .. taddr2+skiplencells+skiplenbytes ) 3039: snl-calc ; 3040: 3041: : insert-label ( taddr -- ) 3042: dup 0= IF drop EXIT THEN 3043: \ ignore everything which points outside our memory regions 3044: \ maybe a primitive pointer or whatever 3045: dup taddr>region 0= IF drop EXIT THEN 3046: dup >r (>regiontype) define-addr-struct addr-refs dup @ 3047: r> tcell 1- and 1 swap lshift or swap ! ; 3048: 3049: \ this generates a sorted list of addresses which must be labels 3050: \ it scans therefore a whole region 3051: : generate-label-list-region ( taddr len -- ) 3052: BEGIN over @relbit IF over X @ insert-label THEN 3053: tcell /string dup 0< 3054: UNTIL 2drop ; 3055: 3056: : generate-label-list ( -- ) 3057: region-link 3058: BEGIN @ dup WHILE 3059: dup 0 >rlink - extent 3060: ?dup IF generate-label-list-region ELSE drop THEN 3061: REPEAT drop ; 3062: 3063: : create-outfile ( addr len -- ) 3064: w/o bin create-file throw outfile-fd ! ; 3065: 3066: : close-outfile ( -- ) 3067: outfile-fd @ close-file throw ; 3068: 3069: : (save-asm-region) ( region -- ) 3070: \ ." label list..." 3071: generate-label-list 3072: \ ." ok!" cr 3073: extent ( S taddr len ) 3074: over insert-label 3075: 2dup + dup insert-label >r ( R end-label ) 3076: ( S taddr len ) drop 3077: BEGIN 3078: dup print-label 3079: dup r@ <> WHILE 3080: skip-nolables save-asm-region-part 3081: REPEAT drop rdrop ; 3082: 3083: : lineout ( addr len -- ) 3084: outfile-fd @ write-line throw ; 3085: 3086: : save-asm-region ( region adr len -- ) 3087: create-outfile (save-asm-region) close-outfile ; 3088: 3089: [THEN] 3090: 3091: \ \ minimal definitions 3092: 3093: >MINIMAL also minimal 3094: 3095: \ Usefull words 13feb93py 3096: 3097: : KB 400 * ; 3098: 3099: \ \ [IF] [ELSE] [THEN] ... 14sep97jaw 3100: 3101: \ it is useful to define our own structures and not to rely 3102: \ on the words in the compiler 3103: \ The words in the compiler might be defined with vocabularies 3104: \ this doesn't work with our self-made compile-loop 3105: 3106: Create parsed 20 chars allot \ store word we parsed 3107: 3108: : upcase 3109: parsed count bounds 3110: ?DO I c@ toupper I c! LOOP ; 3111: 3112: : [ELSE] 3113: 1 BEGIN 3114: BEGIN bl word count dup WHILE 3115: comment? 20 umin parsed place upcase parsed count 3116: 2dup s" [IF]" compare 0= >r 3117: 2dup s" [IFUNDEF]" compare 0= >r 3118: 2dup s" [IFDEF]" compare 0= r> or r> or 3119: IF 2drop 1+ 3120: ELSE 2dup s" [ELSE]" compare 0= 3121: IF 2drop 1- dup 3122: IF 1+ 3123: THEN 3124: ELSE 3125: 2dup s" [ENDIF]" compare 0= >r 3126: s" [THEN]" compare 0= r> or 3127: IF 1- THEN 3128: THEN 3129: THEN 3130: ?dup 0= ?EXIT 3131: REPEAT 3132: 2drop refill 0= 3133: UNTIL drop ; immediate 3134: 3135: : [THEN] ( -- ) ; immediate 3136: 3137: : [ENDIF] ( -- ) ; immediate 3138: 3139: : [IF] ( flag -- ) 3140: 0= IF postpone [ELSE] THEN ; immediate 3141: 3142: Cond: [IF] postpone [IF] ;Cond 3143: Cond: [THEN] postpone [THEN] ;Cond 3144: Cond: [ELSE] postpone [ELSE] ;Cond 3145: 3146: \ define new [IFDEF] and [IFUNDEF] 20may93jaw 3147: 3148: : defined? tdefined? ; 3149: : needed? needed? ; 3150: : doer? doer? ; 3151: 3152: \ we want to use IFDEF on compiler directives (e.g. E?) in the source, too 3153: 3154: : directive? 3155: bl word count [ ' target >wordlist ] literal search-wordlist 3156: dup IF nip THEN ; 3157: 3158: : [IFDEF] >in @ directive? swap >in ! 3159: 0= IF tdefined? ELSE name 2drop true THEN 3160: postpone [IF] ; 3161: 3162: : [IFUNDEF] tdefined? 0= postpone [IF] ; 3163: 3164: Cond: [IFDEF] postpone [IFDEF] ;Cond 3165: 3166: Cond: [IFUNDEF] postpone [IFUNDEF] ;Cond 3167: 3168: \ C: \- \+ Conditional Compiling 09jun93jaw 3169: 3170: : C: >in @ tdefined? 0= 3171: IF >in ! X : 3172: ELSE drop 3173: BEGIN bl word dup c@ 3174: IF count comment? s" ;" compare 0= ?EXIT 3175: ELSE refill 0= ABORT" CROSS: Out of Input while C:" 3176: THEN 3177: AGAIN 3178: THEN ; 3179: 3180: : d? d? ; 3181: 3182: \G doesn't skip line when debug switch is on 3183: : \D D? 0= IF postpone \ THEN ; 3184: 3185: \G interprets the line if word is not defined 3186: : \- tdefined? IF postpone \ THEN ; 3187: 3188: \G interprets the line if word is defined 3189: : \+ tdefined? 0= IF postpone \ THEN ; 3190: 3191: Cond: \- \- ;Cond 3192: Cond: \+ \+ ;Cond 3193: Cond: \D \D ;Cond 3194: 3195: : ?? bl word find IF execute ELSE drop 0 THEN ; 3196: 3197: : needed: 3198: \G defines ghost for words that we want to be compiled 3199: BEGIN >in @ bl word c@ WHILE >in ! Ghost drop REPEAT drop ; 3200: 3201: \ words that should be in minimal 3202: 3203: create s-buffer 50 chars allot 3204: 3205: bigendian Constant bigendian 3206: 3207: : here there ; 3208: : equ constant ; 3209: : mark there constant ; 3210: 3211: \ compiler directives 3212: : >ram >ram ; 3213: : >rom >rom ; 3214: : >auto >auto ; 3215: : >tempdp >tempdp ; 3216: : tempdp> tempdp> ; 3217: : const constflag on ; 3218: 3219: : Redefinitions-start 3220: \G Starts a redefinition section. Warnings are disabled and 3221: \G existing ghosts are reused. This is used in the kernel 3222: \G where ( and \ and the like are redefined 3223: twarnings off warnings off reuse-ghosts on ; 3224: 3225: : Redefinitions-end 3226: \G Ends a redefinition section. Warnings are enabled again. 3227: twarnings on warnings on reuse-ghosts off ; 3228: 3229: : warnings name 3 = 3230: IF twarnings off warnings off ELSE twarnings on warnings on THEN drop ; 3231: 3232: : | ; 3233: \ : | NoHeaderFlag on ; \ This is broken (damages the last word) 3234: 3235: : save-cross save-cross ; 3236: : save-region save-region ; 3237: : tdump swap >image swap dump ; 3238: 3239: also forth 3240: [IFDEF] Label : Label defempty? Label ; [THEN] 3241: [IFDEF] start-macros : start-macros defempty? start-macros ; [THEN] 3242: \ [IFDEF] builttag : builttag builttag ; [THEN] 3243: previous 3244: 3245: : s" [char] " parse s-buffer place s-buffer count ; \ for environment? 3246: : + + ; 3247: : 1+ 1 + ; 3248: : 2+ 2 + ; 3249: : 1- 1- ; 3250: : - - ; 3251: : and and ; 3252: : or or ; 3253: : 2* 2* ; 3254: : * * ; 3255: : / / ; 3256: : dup dup ; 3257: : over over ; 3258: : swap swap ; 3259: : rot rot ; 3260: : drop drop ; 3261: : = = ; 3262: : 0= 0= ; 3263: : lshift lshift ; 3264: : 2/ 2/ ; 3265: \ : . . ; 3266: 3267: : all-words ['] forced? IS skip? ; 3268: : needed-words ['] needed? IS skip? ; 3269: : undef-words ['] defined2? IS skip? ; 3270: : skipdef skipdef ; 3271: 3272: : \ postpone \ ; immediate 3273: : \G T-\G ; immediate 3274: : ( postpone ( ; immediate 3275: : include bl word count included ; 3276: : included swap >image swap included ; 3277: : require require ; 3278: : needs require ; 3279: : .( [char] ) parse type ; 3280: : ." [char] " parse type ; 3281: : cr cr ; 3282: 3283: : times 0 ?DO dup X c, LOOP drop ; \ used for space table creation 3284: 3285: \ only forth also cross also minimal definitions order 3286: 3287: \ cross-compiler words 3288: 3289: : decimal decimal [g'] decimal >exec2 @ ?dup IF EXECUTE THEN ; 3290: : hex hex [g'] hex >exec2 @ ?dup IF EXECUTE THEN ; 3291: 3292: \ : tudp X tudp ; 3293: \ : tup X tup ; 3294: 3295: : doc-off false to-doc ! ; 3296: : doc-on true to-doc ! ; 3297: 3298: : declareunique ( "name" -- ) 3299: \G Sets the unique flag for a ghost. The assembler output 3300: \G generates labels with the ghostname concatenated with the address 3301: \G while cross-compiling. The address is concatenated 3302: \G because we have double occurences of the same name. 3303: \G If we want to reference the labels from the assembler or C 3304: \G code we declare them unique, so the address is skipped. 3305: Ghost >ghost-flags dup @ <unique> or swap ! ; 3306: 3307: \ [IFDEF] dbg : dbg dbg ; [THEN] 3308: 3309: \ for debugging... 3310: \ : dbg dbg ; 3311: : horder order ; 3312: : hwords words ; 3313: \ : words also ghosts 3314: \ words previous ; 3315: \ : .s .s ; 3316: : bye bye ; 3317: 3318: \ dummy 3319: : group 0 word drop ; 3320: 3321: \ turnkey direction 3322: : H forth ; immediate 3323: : T minimal ; immediate 3324: : G ghosts ; immediate 3325: 3326: 3327: \ these ones are pefered: 3328: 3329: : unlock previous forth also cross ; 3330: 3331: \ also minimal 3332: >cross 3333: 3334: : turnkey 3335: ghosts-wordlist 1 set-order 3336: also target definitions 3337: also Minimal also ; 3338: 3339: >minimal 3340: 3341: : [[+++ 3342: turnkey unlock ; 3343: 3344: unlock definitions also minimal 3345: 3346: : lock turnkey ; 3347: 3348: Defer +++]]-hook 3349: : +++]] +++]]-hook lock ; 3350: 3351: LOCK 3352: \ load cross compiler extension defined in mach file 3353: 3354: UNLOCK >CROSS 3355: 3356: [IFDEF] extend-cross extend-cross [THEN] 3357: 3358: LOCK 3359: 3360: 3361: