Annotation of gforth/cross.fs, revision 1.92
1.1 anton 1: \ CROSS.FS The Cross-Compiler 06oct92py
2: \ Idea and implementation: Bernd Paysan (py)
1.30 anton 3:
1.86 anton 4: \ Copyright (C) 1995,1996,1997,1998,1999,2000 Free Software Foundation, Inc.
1.30 anton 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
1.87 anton 20: \ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
1.1 anton 21:
1.67 jwilke 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]
1.48 anton 33:
1.77 jwilke 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:
1.78 jwilke 56: : T previous Ghosts also Target ; immediate
1.77 jwilke 57: : G Ghosts ; immediate
58: : H previous Forth also Cross ; immediate
59:
60: forth definitions
61:
1.78 jwilke 62: : T previous Ghosts also Target ; immediate
1.77 jwilke 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 )
1.78 jwilke 138: over [char] ' =
139: IF \ a ' alone is rather unusual :-)
140: drop char+ c@ 0 true EXIT
141: THEN
1.77 jwilke 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]
1.48 anton 203:
1.52 jwilke 204: hex \ the defualt base for the cross-compiler is hex !!
1.78 jwilke 205: \ Warnings off
1.52 jwilke 206:
207: \ words that are generaly useful
208:
1.59 pazsan 209: : KB 400 * ;
1.52 jwilke 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 ;
1.1 anton 215:
1.23 pazsan 216: : string, ( c-addr u -- )
217: \ puts down string as cstring
218: dup c, here swap chars dup allot move ;
1.5 pazsan 219:
1.77 jwilke 220: : ," [char] " parse string, ;
221:
1.52 jwilke 222: : SetValue ( n -- <name> )
1.54 pazsan 223: \G Same behaviour as "Value" if the <name> is not defined
224: \G Same behaviour as "to" if <name> is defined
1.52 jwilke 225: \G SetValue searches in the current vocabulary
1.68 jwilke 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
1.74 jwilke 232: set-order
1.68 jwilke 233: ELSE Value THEN ;
1.52 jwilke 234:
235: : DefaultValue ( n -- <name> )
1.54 pazsan 236: \G Same behaviour as "Value" if the <name> is not defined
237: \G DefaultValue searches in the current vocabulary
1.52 jwilke 238: save-input bl word >r restore-input throw r> count
239: get-current search-wordlist
1.56 pazsan 240: IF bl word drop 2drop ELSE Value THEN ;
1.1 anton 241:
242: hex
243:
1.52 jwilke 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:
1.74 jwilke 256: \ debugging
1.52 jwilke 257:
1.74 jwilke 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:
1.77 jwilke 267: >CROSS
268:
1.74 jwilke 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
1.54 pazsan 298:
1.77 jwilke 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 )
1.85 pazsan 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 - ;
1.77 jwilke 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:
1.78 jwilke 582: 0 [IF]
583:
1.77 jwilke 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:
1.78 jwilke 594: [THEN]
595:
1.77 jwilke 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:
1.52 jwilke 631: \ \ GhostNames Ghosts 9may93jaw
632:
633: \ second name source to search trough list
634:
635: VARIABLE GhostNames
636: 0 GhostNames !
637:
638: : GhostName ( -- addr )
1.79 jwilke 639: align here GhostNames @ , GhostNames ! here 0 ,
1.52 jwilke 640: bl word count
641: \ 2dup type space
642: string, \ !! cfalign ?
643: align ;
644:
645: \ Ghost Builder 06oct92py
646:
647: \ <T T> new version with temp variable 10may93jaw
648:
649: VARIABLE VocTemp
650:
651: : <T get-current VocTemp ! also Ghosts definitions ;
652: : T> previous VocTemp @ set-current ;
653:
654: hex
655: 4711 Constant <fwd> 4712 Constant <res>
656: 4713 Constant <imm> 4714 Constant <do:>
1.75 jwilke 657: 4715 Constant <skip>
1.52 jwilke 658:
659: \ iForth makes only immediate directly after create
660: \ make atonce trick! ?
661:
662: Variable atonce atonce off
663:
1.76 jwilke 664: : NoExec true ABORT" CROSS: Don't execute ghost, or immediate target word" ;
1.52 jwilke 665:
666: : GhostHeader <fwd> , 0 , ['] NoExec , ;
667:
668: : >magic ; \ type of ghost
669: : >link cell+ ; \ pointer where ghost is in target, or if unresolved
670: \ points to the where we have to resolve (linked-list)
671: : >exec cell+ cell+ ; \ execution symantics (while target compiling) of ghost
672: : >end 3 cells + ; \ room for additional tags
673: \ for builder (create, variable...) words the
674: \ execution symantics of words built are placed here
675:
676: Variable executed-ghost \ last executed ghost, needed in tcreate and gdoes>
677: Variable last-ghost \ last ghost that is created
678: Variable last-header-ghost \ last ghost definitions with header
679:
680: : Make-Ghost ( "name" -- ghost )
681: >in @ GhostName swap >in !
682: <T Create atonce @ IF immediate atonce off THEN
683: here tuck swap ! ghostheader T>
684: dup last-ghost !
685: DOES> dup executed-ghost ! >exec @ execute ;
686:
687: \ ghost words 14oct92py
688: \ changed: 10may93py/jaw
689:
690: : gfind ( string -- ghost true/1 / string false )
691: \ searches for string in word-list ghosts
1.77 jwilke 692: dup count [ ' ghosts >wordlist ] Literal search-wordlist
1.52 jwilke 693: dup IF >r >body nip r> THEN ;
694:
695: : gdiscover ( xt -- ghost true | xt false )
696: GhostNames
697: BEGIN @ dup
698: WHILE 2dup
699: cell+ @ dup >magic @ <fwd> <>
700: >r >link @ = r> and
701: IF cell+ @ nip true EXIT THEN
702: REPEAT
703: drop false ;
704:
705: VARIABLE Already
706:
707: : ghost ( "name" -- ghost )
708: Already off
1.76 jwilke 709: >in @ bl word gfind IF atonce off Already on nip EXIT THEN
1.52 jwilke 710: drop >in ! Make-Ghost ;
711:
712: : >ghostname ( ghost -- adr len )
713: GhostNames
714: BEGIN @ dup
715: WHILE 2dup cell+ @ =
716: UNTIL nip 2 cells + count
1.54 pazsan 717: ELSE 2drop
718: \ true abort" CROSS: Ghostnames inconsistent"
719: s" ?!?!?!"
1.52 jwilke 720: THEN ;
721:
1.78 jwilke 722: : .ghost ( ghost -- ) >ghostname type ;
723:
1.77 jwilke 724: \ ' >ghostname ALIAS @name
1.52 jwilke 725:
726: : forward? ( ghost -- flag )
727: >magic @ <fwd> = ;
728:
1.75 jwilke 729: : undefined? ( ghost -- flag )
730: >magic @ dup <fwd> = swap <skip> = or ;
731:
1.52 jwilke 732: \ Predefined ghosts 12dec92py
733:
734: ghost 0= drop
735: ghost branch ghost ?branch 2drop
736: ghost (do) ghost (?do) 2drop
737: ghost (for) drop
738: ghost (loop) ghost (+loop) 2drop
739: ghost (next) drop
740: ghost unloop ghost ;S 2drop
741: ghost lit ghost (compile) ghost ! 2drop drop
742: ghost (does>) ghost noop 2drop
743: ghost (.") ghost (S") ghost (ABORT") 2drop drop
744: ghost ' drop
745: ghost :docol ghost :doesjump ghost :dodoes 2drop drop
1.54 pazsan 746: ghost :dovar drop
1.52 jwilke 747: ghost over ghost = ghost drop 2drop drop
748: ghost - drop
1.54 pazsan 749: ghost 2drop drop
750: ghost 2dup drop
1.52 jwilke 751:
752: \ \ Parameter for target systems 06oct92py
753:
754: \ we define it ans like...
755: wordlist Constant target-environment
756:
757: VARIABLE env-current \ save information of current dictionary to restore with environ>
758:
759: : >ENVIRON get-current env-current ! target-environment set-current ;
760: : ENVIRON> env-current @ set-current ;
1.43 pazsan 761:
1.48 anton 762: >TARGET
1.43 pazsan 763:
1.67 jwilke 764: : environment? ( adr len -- [ x ] true | false )
1.52 jwilke 765: target-environment search-wordlist
766: IF execute true ELSE false THEN ;
767:
1.67 jwilke 768: : e? bl word count T environment? H 0= ABORT" environment variable not defined!" ;
1.52 jwilke 769:
1.67 jwilke 770: : has? bl word count T environment? H
1.53 jwilke 771: IF \ environment variable is present, return its value
772: ELSE \ environment variable is not present, return false
1.75 jwilke 773: false \ debug true ABORT" arg"
1.53 jwilke 774: THEN ;
1.52 jwilke 775:
776: : $has? T environment? H IF ELSE false THEN ;
1.48 anton 777:
1.54 pazsan 778: >ENVIRON get-order get-current swap 1+ set-order
779: true SetValue compiler
1.83 pazsan 780: true SetValue cross
1.54 pazsan 781: true SetValue standard-threading
782: >TARGET previous
1.52 jwilke 783:
1.77 jwilke 784: 0
785: [IFDEF] mach-file mach-file count 1 [THEN]
786: [IFDEF] machine-file machine-file 1 [THEN]
787: [IF] included hex drop
788: [ELSE] cr ." No machine description!" ABORT
789: [THEN]
1.43 pazsan 790:
1.53 jwilke 791: >ENVIRON
792:
1.54 pazsan 793: T has? ec H
794: [IF]
795: false DefaultValue relocate
796: false DefaultValue file
797: false DefaultValue OS
798: false DefaultValue prims
799: false DefaultValue floating
800: false DefaultValue glocals
801: false DefaultValue dcomps
802: false DefaultValue hash
803: false DefaultValue xconds
804: false DefaultValue header
1.92 ! pazsan 805: false DefaultValue backtrace
1.88 pazsan 806: false DefaultValue new-input
1.54 pazsan 807: [THEN]
808:
809: true DefaultValue interpreter
810: true DefaultValue ITC
811: false DefaultValue rom
1.73 jwilke 812: true DefaultValue standardthreading
1.53 jwilke 813:
1.52 jwilke 814: >TARGET
1.53 jwilke 815: s" relocate" T environment? H
816: [IF] SetValue NIL
817: [ELSE] >ENVIRON T NIL H SetValue relocate
818: [THEN]
1.43 pazsan 819:
820: >CROSS
821:
1.52 jwilke 822: \ \ Create additional parameters 19jan95py
1.19 pazsan 823:
1.71 jwilke 824: \ currently cross only works for host machines with address-unit-bits
825: \ eual to 8 because of s! and sc!
826: \ but I start to query the environment just to modularize a little bit
827:
828: : check-address-unit-bits ( -- )
829: \ s" ADDRESS-UNIT-BITS" environment?
830: \ IF 8 <> ELSE true THEN
831: \ ABORT" ADDRESS-UNIT-BITS unknown or not equal to 8!"
832:
833: \ shit, this doesn't work because environment? is only defined for
834: \ gforth.fi and not kernl???.fi
835: ;
836:
837: check-address-unit-bits
838: 8 Constant bits/byte \ we define: byte is address-unit
839:
840: 1 bits/byte lshift Constant maxbyte
1.77 jwilke 841: \ this sets byte size for the target machine, (probably right guess) jaw
1.67 jwilke 842:
1.19 pazsan 843: T
1.71 jwilke 844: NIL Constant TNIL
845: cell Constant tcell
846: cell<< Constant tcell<<
847: cell>bit Constant tcell>bit
848: bits/char Constant tbits/char
849: bits/char H bits/byte T /
850: Constant tchar
851: float Constant tfloat
852: 1 bits/char lshift Constant tmaxchar
853: [IFUNDEF] bits/byte
854: 8 Constant tbits/byte
855: [ELSE]
856: bits/byte Constant tbits/byte
857: [THEN]
1.19 pazsan 858: H
1.81 pazsan 859: tbits/char bits/byte / Constant tbyte
1.71 jwilke 860:
1.19 pazsan 861:
1.48 anton 862: \ Variables 06oct92py
863:
864: Variable image
865: Variable tlast TNIL tlast ! \ Last name field
866: Variable tlastcfa \ Last code field
867: Variable tdoes \ Resolve does> calls
868: Variable bit$
1.52 jwilke 869:
870: \ statistics 10jun97jaw
871:
872: Variable headers-named 0 headers-named !
873: Variable user-vars 0 user-vars !
874:
1.67 jwilke 875: : target>bitmask-size ( u1 -- u2 )
876: 1- tcell>bit rshift 1+ ;
877:
878: : allocatetarget ( size --- adr )
879: dup allocate ABORT" CROSS: No memory for target"
880: swap over swap erase ;
1.52 jwilke 881:
1.54 pazsan 882: \ \ memregion.fs
1.52 jwilke 883:
884:
885: Variable last-defined-region \ pointer to last defined region
886: Variable region-link \ linked list with all regions
887: Variable mirrored-link \ linked list for mirrored regions
888: 0 dup mirrored-link ! region-link !
889:
890:
1.67 jwilke 891: : >rname 6 cells + ;
892: : >rbm 5 cells + ;
893: : >rmem 4 cells + ;
894: : >rlink 3 cells + ;
1.52 jwilke 895: : >rdp 2 cells + ;
896: : >rlen cell+ ;
897: : >rstart ;
898:
899:
900: : region ( addr len -- ) \G create a new region
901: \ check whether predefined region exists
902: save-input bl word find >r >r restore-input throw r> r> 0=
903: IF \ make region
904: drop
905: save-input create restore-input throw
906: here last-defined-region !
907: over ( startaddr ) , ( length ) , ( dp ) ,
1.67 jwilke 908: region-link linked 0 , 0 , bl word count string,
1.52 jwilke 909: ELSE \ store new parameters in region
910: bl word drop
911: >body >r r@ last-defined-region !
1.67 jwilke 912: r@ >rlen ! dup r@ >rstart ! r> >rdp !
1.52 jwilke 913: THEN ;
914:
915: : borders ( region -- startaddr endaddr ) \G returns lower and upper region border
1.67 jwilke 916: dup >rstart @ swap >rlen @ over + ;
1.52 jwilke 917:
918: : extent ( region -- startaddr len ) \G returns the really used area
1.67 jwilke 919: dup >rstart @ swap >rdp @ over - ;
1.52 jwilke 920:
921: : area ( region -- startaddr totallen ) \G returns the total area
1.79 jwilke 922: dup >rstart @ swap >rlen @ ;
1.52 jwilke 923:
924: : mirrored \G mark a region as mirrored
925: mirrored-link
1.68 jwilke 926: align linked last-defined-region @ , ;
1.52 jwilke 927:
1.67 jwilke 928: : .addr ( u -- )
929: \G prints a 16 or 32 Bit nice hex value
1.52 jwilke 930: base @ >r hex
931: tcell 2 u>
1.77 jwilke 932: IF s>d <# # # # # [char] . hold # # # # #> type
1.52 jwilke 933: ELSE s>d <# # # # # # #> type
934: THEN r> base ! ;
935:
936: : .regions \G display region statistic
937:
938: \ we want to list the regions in the right order
939: \ so first collect all regions on stack
940: 0 region-link @
941: BEGIN dup WHILE dup @ REPEAT drop
942: BEGIN dup
1.67 jwilke 943: WHILE cr
944: 0 >rlink - >r
945: r@ >rname count tuck type
1.52 jwilke 946: 12 swap - 0 max spaces space
1.67 jwilke 947: ." Start: " r@ >rstart @ dup .addr space
948: ." End: " r@ >rlen @ + .addr space
949: ." DP: " r> >rdp @ .addr
1.52 jwilke 950: REPEAT drop
1.53 jwilke 951: s" rom" T $has? H 0= ?EXIT
1.52 jwilke 952: cr ." Mirrored:"
953: mirrored-link @
954: BEGIN dup
1.67 jwilke 955: WHILE space dup cell+ @ >rname count type @
1.52 jwilke 956: REPEAT drop cr
957: ;
958:
959: \ -------- predefined regions
960:
961: 0 0 region address-space
962: \ total memory addressed and used by the target system
963:
964: 0 0 region dictionary
965: \ rom area for the compiler
966:
1.53 jwilke 967: T has? rom H
1.52 jwilke 968: [IF]
969: 0 0 region ram-dictionary mirrored
970: \ ram area for the compiler
971: [ELSE]
972: ' dictionary ALIAS ram-dictionary
973: [THEN]
974:
975: 0 0 region return-stack
976:
977: 0 0 region data-stack
978:
979: 0 0 region tib-region
980:
981: ' dictionary ALIAS rom-dictionary
982:
983:
984: : setup-target ( -- ) \G initialize targets memory space
1.53 jwilke 985: s" rom" T $has? H
1.52 jwilke 986: IF \ check for ram and rom...
1.72 jwilke 987: \ address-space area nip 0<>
1.67 jwilke 988: ram-dictionary area nip 0<>
989: rom-dictionary area nip 0<>
1.72 jwilke 990: and 0=
1.52 jwilke 991: ABORT" CROSS: define address-space, rom- , ram-dictionary, with rom-support!"
992: THEN
993: address-space area nip
994: IF
995: address-space area
996: ELSE
997: dictionary area
998: THEN
1.67 jwilke 999: nip 0=
1.52 jwilke 1000: ABORT" CROSS: define at least address-space or dictionary!!"
1.67 jwilke 1001:
1002: \ allocate target for each region
1003: region-link
1004: BEGIN @ dup
1005: WHILE dup
1006: 0 >rlink - >r
1007: r@ >rlen @
1008: IF \ allocate mem
1009: r@ >rlen @ dup
1010:
1011: allocatetarget dup image !
1012: r@ >rmem !
1013:
1014: target>bitmask-size allocatetarget
1.72 jwilke 1015: dup bit$ !
1.67 jwilke 1016: r> >rbm !
1017:
1018: ELSE r> drop THEN
1.72 jwilke 1019: REPEAT drop ;
1020:
1021: \ MakeKernal 22feb99jaw
1022:
1023: : makekernel ( targetsize -- targetsize )
1024: dup dictionary >rlen ! setup-target ;
1025:
1026: >MINIMAL
1027: : makekernel makekernel ;
1028: >CROSS
1.52 jwilke 1029:
1.54 pazsan 1030: \ \ switched tdp for rom support 03jun97jaw
1.52 jwilke 1031:
1032: \ second value is here to store some maximal value for statistics
1033: \ tempdp is also embedded here but has nothing to do with rom support
1034: \ (needs switched dp)
1035:
1036: variable tempdp 0 , \ temporary dp for resolving
1037: variable tempdp-save
1038:
1039: 0 [IF]
1040: variable romdp 0 , \ Dictionary-Pointer for ramarea
1041: variable ramdp 0 , \ Dictionary-Pointer for romarea
1042:
1043: \
1044: variable sramdp \ start of ram-area for forth
1045: variable sromdp \ start of rom-area for forth
1046:
1047: [THEN]
1048:
1049:
1050: 0 value tdp
1051: variable fixed \ flag: true: no automatic switching
1052: \ false: switching is done automatically
1053:
1054: \ Switch-Policy:
1055: \
1056: \ a header is always compiled into rom
1057: \ after a created word (create and variable) compilation goes to ram
1058: \
1059: \ Be careful: If you want to make the data behind create into rom
1060: \ you have to put >rom before create!
1061:
1062: variable constflag constflag off
1063:
1.67 jwilke 1064: : activate ( region -- )
1065: \G next code goes to this region
1066: >rdp to tdp ;
1067:
1.52 jwilke 1068: : (switchram)
1.53 jwilke 1069: fixed @ ?EXIT s" rom" T $has? H 0= ?EXIT
1.67 jwilke 1070: ram-dictionary activate ;
1.52 jwilke 1071:
1072: : switchram
1073: constflag @
1074: IF constflag off ELSE (switchram) THEN ;
1075:
1076: : switchrom
1.67 jwilke 1077: fixed @ ?EXIT rom-dictionary activate ;
1.52 jwilke 1078:
1079: : >tempdp ( addr -- )
1080: tdp tempdp-save ! tempdp to tdp tdp ! ;
1081: : tempdp> ( -- )
1082: tempdp-save @ to tdp ;
1083:
1084: : >ram fixed off (switchram) fixed on ;
1085: : >rom fixed off switchrom fixed on ;
1086: : >auto fixed off switchrom ;
1087:
1088:
1089:
1090: \ : romstart dup sromdp ! romdp ! ;
1091: \ : ramstart dup sramdp ! ramdp ! ;
1092:
1.67 jwilke 1093: \ default compilation goes to rom
1.52 jwilke 1094: \ when romable support is off, only the rom switch is used (!!)
1095: >auto
1096:
1.48 anton 1097: : there tdp @ ;
1098:
1.52 jwilke 1099: >TARGET
1.48 anton 1100:
1.52 jwilke 1101: \ \ Target Memory Handling
1.1 anton 1102:
1103: \ Byte ordering and cell size 06oct92py
1104:
1.19 pazsan 1105: : cell+ tcell + ;
1106: : cells tcell<< lshift ;
1.71 jwilke 1107: : chars tchar * ;
1108: : char+ tchar + ;
1.19 pazsan 1109: : floats tfloat * ;
1.6 anton 1110:
1.1 anton 1111: >CROSS
1.19 pazsan 1112: : cell/ tcell<< rshift ;
1.1 anton 1113: >TARGET
1114: 20 CONSTANT bl
1.52 jwilke 1115: \ TNIL Constant NIL
1.1 anton 1116:
1117: >CROSS
1118:
1.20 pazsan 1119: bigendian
1120: [IF]
1.52 jwilke 1121: : S! ( n addr -- ) >r s>d r> tcell bounds swap 1-
1.20 pazsan 1122: DO maxbyte ud/mod rot I c! -1 +LOOP 2drop ;
1.52 jwilke 1123: : S@ ( addr -- n ) >r 0 0 r> tcell bounds
1.20 pazsan 1124: DO maxbyte * swap maxbyte um* rot + swap I c@ + swap LOOP d>s ;
1.57 pazsan 1125: : Sc! ( n addr -- ) >r s>d r> tchar bounds swap 1-
1126: DO maxbyte ud/mod rot I c! -1 +LOOP 2drop ;
1127: : Sc@ ( addr -- n ) >r 0 0 r> tchar bounds
1128: DO maxbyte * swap maxbyte um* rot + swap I c@ + swap LOOP d>s ;
1.19 pazsan 1129: [ELSE]
1.52 jwilke 1130: : S! ( n addr -- ) >r s>d r> tcell bounds
1.20 pazsan 1131: DO maxbyte ud/mod rot I c! LOOP 2drop ;
1.52 jwilke 1132: : S@ ( addr -- n ) >r 0 0 r> tcell bounds swap 1-
1.20 pazsan 1133: DO maxbyte * swap maxbyte um* rot + swap I c@ + swap -1 +LOOP d>s ;
1.57 pazsan 1134: : Sc! ( n addr -- ) >r s>d r> tchar bounds
1135: DO maxbyte ud/mod rot I c! LOOP 2drop ;
1136: : Sc@ ( addr -- n ) >r 0 0 r> tchar bounds swap 1-
1137: DO maxbyte * swap maxbyte um* rot + swap I c@ + swap -1 +LOOP d>s ;
1.1 anton 1138: [THEN]
1139:
1.67 jwilke 1140: : taddr>region ( taddr -- region | 0 )
1141: \G finds for a target-address the correct region
1142: \G returns 0 if taddr is not in range of a target memory region
1143: region-link
1144: BEGIN @ dup
1145: WHILE dup >r
1146: 0 >rlink - >r
1147: r@ >rlen @
1148: IF dup r@ borders within
1149: IF r> r> drop nip EXIT THEN
1150: THEN
1151: r> drop
1152: r>
1153: REPEAT
1154: 2drop 0 ;
1155:
1156: : (>regionimage) ( taddr -- 'taddr )
1157: dup
1158: \ find region we want to address
1159: taddr>region dup 0= ABORT" Address out of range!"
1160: >r
1161: \ calculate offset in region
1162: r@ >rstart @ -
1163: \ add regions real address in our memory
1164: r> >rmem @ + ;
1165:
1.1 anton 1166: \ Bit string manipulation 06oct92py
1167: \ 9may93jaw
1168: CREATE Bittable 80 c, 40 c, 20 c, 10 c, 8 c, 4 c, 2 c, 1 c,
1169: : bits ( n -- n ) chars Bittable + c@ ;
1170:
1171: : >bit ( addr n -- c-addr mask ) 8 /mod rot + swap bits ;
1172: : +bit ( addr n -- ) >bit over c@ or swap c! ;
1.4 pazsan 1173: : -bit ( addr n -- ) >bit invert over c@ and swap c! ;
1.67 jwilke 1174:
1.84 jwilke 1175: : (relon) ( taddr -- )
1176: [ [IFDEF] fd-relocation-table ]
1177: s" +" fd-relocation-table write-file throw
1178: dup s>d <# #s #> fd-relocation-table write-line throw
1179: [ [THEN] ]
1180: bit$ @ swap cell/ +bit ;
1181:
1182: : (reloff) ( taddr -- )
1183: [ [IFDEF] fd-relocation-table ]
1184: s" -" fd-relocation-table write-file throw
1185: dup s>d <# #s #> fd-relocation-table write-line throw
1186: [ [THEN] ]
1187: bit$ @ swap cell/ -bit ;
1.67 jwilke 1188:
1189: : (>image) ( taddr -- absaddr ) image @ + ;
1190:
1191: DEFER >image
1192: DEFER relon
1193: DEFER reloff
1194: DEFER correcter
1195:
1196: T has? relocate H
1197: [IF]
1198: ' (relon) IS relon
1199: ' (reloff) IS reloff
1200: ' (>image) IS >image
1201: [ELSE]
1202: ' drop IS relon
1203: ' drop IS reloff
1.68 jwilke 1204: ' (>regionimage) IS >image
1.67 jwilke 1205: [THEN]
1.1 anton 1206:
1207: \ Target memory access 06oct92py
1208:
1209: : align+ ( taddr -- rest )
1.48 anton 1210: tcell tuck 1- and - [ tcell 1- ] Literal and ;
1.22 anton 1211: : cfalign+ ( taddr -- rest )
1.39 pazsan 1212: \ see kernel.fs:cfaligned
1.43 pazsan 1213: /maxalign tuck 1- and - [ /maxalign 1- ] Literal and ;
1.1 anton 1214:
1215: >TARGET
1216: : aligned ( taddr -- ta-addr ) dup align+ + ;
1217: \ assumes cell alignment granularity (as GNU C)
1218:
1.22 anton 1219: : cfaligned ( taddr1 -- taddr2 )
1.39 pazsan 1220: \ see kernel.fs
1.22 anton 1221: dup cfalign+ + ;
1222:
1.52 jwilke 1223: : @ ( taddr -- w ) >image S@ ;
1224: : ! ( w taddr -- ) >image S! ;
1.57 pazsan 1225: : c@ ( taddr -- char ) >image Sc@ ;
1226: : c! ( char taddr -- ) >image Sc! ;
1.7 anton 1227: : 2@ ( taddr -- x1 x2 ) T dup cell+ @ swap @ H ;
1.82 pazsan 1228: : 2! ( x1 x2 taddr -- ) T tuck ! cell+ ! H ;
1.1 anton 1229:
1230: \ Target compilation primitives 06oct92py
1231: \ included A! 16may93jaw
1232:
1233: : here ( -- there ) there ;
1234: : allot ( n -- ) tdp +! ;
1.78 jwilke 1235: : , ( w -- ) T here H tcell T allot ! H ;
1236: : c, ( char -- ) T here H tchar T allot c! H ;
1237: : align ( -- ) T here H align+ 0 ?DO bl T c, H tchar +LOOP ;
1.22 anton 1238: : cfalign ( -- )
1.78 jwilke 1239: T here H cfalign+ 0 ?DO bl T c, H tchar +LOOP ;
1.1 anton 1240:
1.71 jwilke 1241: : >address dup 0>= IF tbyte / THEN ; \ ?? jaw
1.59 pazsan 1242: : A! swap >address swap dup relon T ! H ;
1243: : A, ( w -- ) >address T here H relon T , H ;
1.1 anton 1244:
1245: >CROSS
1246:
1.52 jwilke 1247: : tcmove ( source dest len -- )
1248: \G cmove in target memory
1.57 pazsan 1249: tchar * bounds
1.52 jwilke 1250: ?DO dup T c@ H I T c! H 1+
1.57 pazsan 1251: tchar +LOOP drop ;
1.1 anton 1252:
1.67 jwilke 1253: \ \ Load Assembler
1254:
1.1 anton 1255: >TARGET
1.74 jwilke 1256: H also Forth definitions
1.1 anton 1257:
1.77 jwilke 1258: : X bl word count [ ' target >wordlist ] Literal search-wordlist
1.52 jwilke 1259: IF state @ IF compile,
1260: ELSE execute THEN
1.77 jwilke 1261: ELSE -1 ABORT" Cross: access method not supported!"
1262: THEN ; immediate
1.1 anton 1263:
1.52 jwilke 1264: [IFDEF] asm-include asm-include [THEN] hex
1.1 anton 1265:
1.52 jwilke 1266: previous
1267: >CROSS H
1.1 anton 1268:
1.52 jwilke 1269: \ \ -------------------- Compiler Plug Ins 01aug97jaw
1.1 anton 1270:
1.54 pazsan 1271: \ Compiler States
1272:
1273: Variable comp-state
1274: 0 Constant interpreting
1275: 1 Constant compiling
1276: 2 Constant resolving
1277: 3 Constant assembling
1278:
1.52 jwilke 1279: Defer lit, ( n -- )
1280: Defer alit, ( n -- )
1.54 pazsan 1281:
1282: Defer branch, ( target-addr -- ) \ compiles a branch
1283: Defer ?branch, ( target-addr -- ) \ compiles a ?branch
1284: Defer branchmark, ( -- branch-addr ) \ reserves room for a branch
1285: Defer ?branchmark, ( -- branch-addr ) \ reserves room for a ?branch
1286: Defer ?domark, ( -- branch-addr ) \ reserves room for a ?do branch
1287: Defer branchto, ( -- ) \ actual program position is target of a branch (do e.g. alignment)
1288: Defer branchtoresolve, ( branch-addr -- ) \ resolves a forward reference from branchmark
1289: Defer branchfrom, ( -- ) \ ?!
1290: Defer branchtomark, ( -- target-addr ) \ marks a branch destination
1291:
1.52 jwilke 1292: Defer colon, ( tcfa -- ) \ compiles call to tcfa at current position
1.54 pazsan 1293: Defer colonmark, ( -- addr ) \ marks a colon call
1.52 jwilke 1294: Defer colon-resolve ( tcfa addr -- )
1.54 pazsan 1295:
1.52 jwilke 1296: Defer addr-resolve ( target-addr addr -- )
1.54 pazsan 1297: Defer doer-resolve ( ghost res-pnt target-addr addr -- ghost res-pnt )
1298:
1299: Defer do, ( -- do-token )
1300: Defer ?do, ( -- ?do-token )
1301: Defer for, ( -- for-token )
1302: Defer loop, ( do-token / ?do-token -- )
1303: Defer +loop, ( do-token / ?do-token -- )
1304: Defer next, ( for-token )
1.1 anton 1305:
1.52 jwilke 1306: [IFUNDEF] ca>native
1307: defer ca>native
1308: [THEN]
1.1 anton 1309:
1.52 jwilke 1310: >TARGET
1311: DEFER >body \ we need the system >body
1312: \ and the target >body
1313: >CROSS
1314: T 2 cells H VALUE xt>body
1.54 pazsan 1315: DEFER doprim, \ compiles start of a primitive
1316: DEFER docol, \ compiles start of a colon definition
1.52 jwilke 1317: DEFER doer,
1318: DEFER fini, \ compiles end of definition ;s
1319: DEFER doeshandler,
1320: DEFER dodoes,
1321:
1322: DEFER ]comp \ starts compilation
1323: DEFER comp[ \ ends compilation
1324:
1.54 pazsan 1325: : (cc) T a, H ; ' (cc) IS colon,
1326:
1327: : (cr) >tempdp ]comp colon, comp[ tempdp> ; ' (cr) IS colon-resolve
1328: : (ar) T ! H ; ' (ar) IS addr-resolve
1329: : (dr) ( ghost res-pnt target-addr addr )
1330: >tempdp drop over
1331: dup >magic @ <do:> =
1332: IF doer,
1333: ELSE dodoes,
1334: THEN
1335: tempdp> ; ' (dr) IS doer-resolve
1336:
1337: : (cm) ( -- addr )
1338: T here align H
1339: -1 colon, ; ' (cm) IS colonmark,
1.1 anton 1340:
1.52 jwilke 1341: >TARGET
1342: : compile, colon, ;
1343: >CROSS
1.1 anton 1344:
1.52 jwilke 1345: \ resolve structure
1.1 anton 1346:
1.52 jwilke 1347: : >next ; \ link to next field
1.54 pazsan 1348: : >tag cell+ ; \ indecates type of reference: 0: call, 1: address, 2: doer
1.53 jwilke 1349: : >taddr cell+ cell+ ;
1.52 jwilke 1350: : >ghost 3 cells + ;
1.53 jwilke 1351: : >file 4 cells + ;
1352: : >line 5 cells + ;
1.48 anton 1353:
1.54 pazsan 1354: : (refered) ( ghost addr tag -- )
1355: \G creates a reference to ghost at address taddr
1356: rot >r here r@ >link @ , r> >link !
1357: ( taddr tag ) ,
1358: ( taddr ) ,
1359: last-header-ghost @ ,
1360: loadfile ,
1361: sourceline# ,
1362: ;
1363:
1.52 jwilke 1364: : refered ( ghost tag -- )
1.53 jwilke 1365: \G creates a resolve structure
1.54 pazsan 1366: T here aligned H swap (refered)
1367: ;
1368:
1369: : killref ( addr ghost -- )
1370: \G kills a forward reference to ghost at position addr
1371: \G this is used to eleminate a :dovar refence after making a DOES>
1372: dup >magic @ <fwd> <> IF 2drop EXIT THEN
1373: swap >r >link
1374: BEGIN dup @ dup ( addr last this )
1375: WHILE dup >taddr @ r@ =
1376: IF @ over !
1377: ELSE nip THEN
1378: REPEAT rdrop 2drop
1.53 jwilke 1379: ;
1.48 anton 1380:
1.52 jwilke 1381: Defer resolve-warning
1.1 anton 1382:
1.52 jwilke 1383: : reswarn-test ( ghost res-struct -- ghost res-struct )
1.78 jwilke 1384: over cr ." Resolving " .ghost dup ." in " >ghost @ .ghost ;
1.1 anton 1385:
1.52 jwilke 1386: : reswarn-forward ( ghost res-struct -- ghost res-struct )
1.78 jwilke 1387: over warnhead .ghost dup ." is referenced in "
1388: >ghost @ .ghost ;
1.1 anton 1389:
1.52 jwilke 1390: \ ' reswarn-test IS resolve-warning
1391:
1.1 anton 1392: \ resolve 14oct92py
1393:
1.54 pazsan 1394: : resolve-loop ( ghost resolve-list tcfa -- )
1395: >r
1396: BEGIN dup WHILE
1397: \ dup >tag @ 2 = IF reswarn-forward THEN
1398: resolve-warning
1399: r@ over >taddr @
1400: 2 pick >tag @
1401: CASE 0 OF colon-resolve ENDOF
1402: 1 OF addr-resolve ENDOF
1403: 2 OF doer-resolve ENDOF
1404: ENDCASE
1405: @ \ next list element
1406: REPEAT 2drop rdrop
1407: ;
1.52 jwilke 1408:
1409: \ : resolve-loop ( ghost tcfa -- ghost tcfa )
1410: \ >r dup >link @
1411: \ BEGIN dup WHILE dup T @ H r@ rot T ! H REPEAT drop r> ;
1.1 anton 1412:
1413: \ exists 9may93jaw
1414:
1.52 jwilke 1415: Variable TWarnings
1416: TWarnings on
1417: Variable Exists-Warnings
1418: Exists-Warnings on
1419:
1.1 anton 1420: : exists ( ghost tcfa -- )
1421: over GhostNames
1422: BEGIN @ dup
1423: WHILE 2dup cell+ @ =
1424: UNTIL
1.52 jwilke 1425: 2 cells + count
1426: TWarnings @ Exists-Warnings @ and
1427: IF warnhead type ." exists"
1428: ELSE 2drop THEN
1429: drop swap >link !
1.24 pazsan 1430: ELSE true abort" CROSS: Ghostnames inconsistent "
1.1 anton 1431: THEN ;
1432:
1433: : resolve ( ghost tcfa -- )
1.54 pazsan 1434: \G resolve referencies to ghost with tcfa
1435: \ is ghost resolved?, second resolve means another definition with the
1436: \ same name
1.75 jwilke 1437: over undefined? 0= IF exists EXIT THEN
1.54 pazsan 1438: \ get linked-list
1439: swap >r r@ >link @ swap \ ( list tcfa R: ghost )
1440: \ mark ghost as resolved
1441: dup r@ >link ! <res> r@ >magic !
1442: \ loop through forward referencies
1443: r> -rot
1444: comp-state @ >r Resolving comp-state !
1445: resolve-loop
1446: r> comp-state !
1447:
1448: ['] noop IS resolve-warning
1.52 jwilke 1449: ;
1.1 anton 1450:
1451: \ gexecute ghost, 01nov92py
1452:
1.52 jwilke 1453: : is-forward ( ghost -- )
1.54 pazsan 1454: colonmark, 0 (refered) ; \ compile space for call
1.52 jwilke 1455:
1456: : is-resolved ( ghost -- )
1457: >link @ colon, ; \ compile-call
1458:
1459: : gexecute ( ghost -- )
1460: dup @ <fwd> = IF is-forward ELSE is-resolved THEN ;
1461:
1462: : addr, ( ghost -- )
1463: dup @ <fwd> = IF 1 refered 0 T a, H ELSE >link @ T a, H THEN ;
1464:
1465: \ !! : ghost, ghost gexecute ;
1.1 anton 1466:
1467: \ .unresolved 11may93jaw
1468:
1469: variable ResolveFlag
1470:
1471: \ ?touched 11may93jaw
1472:
1.52 jwilke 1473: : ?touched ( ghost -- flag ) dup forward? swap >link @
1.1 anton 1474: 0 <> and ;
1475:
1.53 jwilke 1476: : .forwarddefs ( ghost -- )
1477: ." appeared in:"
1478: >link
1479: BEGIN @ dup
1480: WHILE cr 5 spaces
1.78 jwilke 1481: dup >ghost @ .ghost
1.53 jwilke 1482: ." file " dup >file @ ?dup IF count type ELSE ." CON" THEN
1483: ." line " dup >line @ .dec
1484: REPEAT
1485: drop ;
1486:
1.1 anton 1487: : ?resolved ( ghostname -- )
1488: dup cell+ @ ?touched
1.53 jwilke 1489: IF dup
1490: cell+ cell+ count cr type ResolveFlag on
1491: cell+ @ .forwarddefs
1492: ELSE drop
1493: THEN ;
1.1 anton 1494:
1495: : .unresolved ( -- )
1496: ResolveFlag off cr ." Unresolved: "
1497: Ghostnames
1498: BEGIN @ dup
1499: WHILE dup ?resolved
1.10 anton 1500: REPEAT drop ResolveFlag @
1501: IF
1.48 anton 1502: -1 abort" Unresolved words!"
1.10 anton 1503: ELSE
1504: ." Nothing!"
1505: THEN
1506: cr ;
1.1 anton 1507:
1.52 jwilke 1508: : .stats
1509: base @ >r decimal
1510: cr ." named Headers: " headers-named @ .
1511: r> base ! ;
1512:
1.79 jwilke 1513: >MINIMAL
1514:
1515: : .unresolved .unresolved ;
1516:
1.1 anton 1517: >CROSS
1518: \ Header states 12dec92py
1519:
1.90 pazsan 1520: bigendian [IF] 0 [ELSE] tcell 1- [THEN] Constant flag+
1521: : flag! ( w -- ) tlast @ flag+ + dup >r T c@ xor r> c! H ;
1.1 anton 1522:
1523: VARIABLE ^imm
1524:
1.89 anton 1525: \ !! should be target wordsize specific
1.90 pazsan 1526: $80 constant alias-mask
1527: $40 constant immediate-mask
1528: $20 constant restrict-mask
1.89 anton 1529:
1.1 anton 1530: >TARGET
1.89 anton 1531: : immediate immediate-mask flag!
1.18 pazsan 1532: ^imm @ @ dup <imm> = IF drop EXIT THEN
1.1 anton 1533: <res> <> ABORT" CROSS: Cannot immediate a unresolved word"
1534: <imm> ^imm @ ! ;
1.89 anton 1535: : restrict restrict-mask flag! ;
1.52 jwilke 1536:
1.54 pazsan 1537: : isdoer
1538: \G define a forth word as doer, this makes obviously only sence on
1539: \G forth processors such as the PSC1000
1540: <do:> last-header-ghost @ >magic ! ;
1.1 anton 1541: >CROSS
1542:
1543: \ Target Header Creation 01nov92py
1544:
1.52 jwilke 1545: >TARGET
1.1 anton 1546: : string, ( addr count -- )
1.89 anton 1547: dup T c, H bounds ?DO I c@ T c, H LOOP ;
1548: : lstring, ( addr count -- )
1549: dup T , H bounds ?DO I c@ T c, H LOOP ;
1550: : name, ( "name" -- ) bl word count T lstring, cfalign H ;
1.1 anton 1551: : view, ( -- ) ( dummy ) ;
1.52 jwilke 1552: >CROSS
1.1 anton 1553:
1.25 pazsan 1554: \ Target Document Creation (goes to crossdoc.fd) 05jul95py
1555:
1.55 pazsan 1556: s" ./doc/crossdoc.fd" r/w create-file throw value doc-file-id
1.25 pazsan 1557: \ contains the file-id of the documentation file
1558:
1.40 pazsan 1559: : T-\G ( -- )
1.25 pazsan 1560: source >in @ /string doc-file-id write-line throw
1.40 pazsan 1561: postpone \ ;
1.25 pazsan 1562:
1.39 pazsan 1563: Variable to-doc to-doc on
1.25 pazsan 1564:
1565: : cross-doc-entry ( -- )
1566: to-doc @ tlast @ 0<> and \ not an anonymous (i.e. noname) header
1567: IF
1568: s" " doc-file-id write-line throw
1569: s" make-doc " doc-file-id write-file throw
1.77 jwilke 1570:
1571: tlast @ >image count 1F and doc-file-id write-file throw
1.25 pazsan 1572: >in @
1573: [char] ( parse 2drop
1574: [char] ) parse doc-file-id write-file throw
1575: s" )" doc-file-id write-file throw
1576: [char] \ parse 2drop
1.40 pazsan 1577: T-\G
1.25 pazsan 1578: >in !
1.39 pazsan 1579: THEN ;
1.25 pazsan 1580:
1.28 pazsan 1581: \ Target TAGS creation
1582:
1.39 pazsan 1583: s" kernel.TAGS" r/w create-file throw value tag-file-id
1.28 pazsan 1584: \ contains the file-id of the tags file
1585:
1586: Create tag-beg 2 c, 7F c, bl c,
1587: Create tag-end 2 c, bl c, 01 c,
1588: Create tag-bof 1 c, 0C c,
1589:
1590: 2variable last-loadfilename 0 0 last-loadfilename 2!
1591:
1592: : put-load-file-name ( -- )
1.77 jwilke 1593: sourcefilename last-loadfilename 2@ d<>
1.28 pazsan 1594: IF
1595: tag-bof count tag-file-id write-line throw
1.31 anton 1596: sourcefilename 2dup
1.28 pazsan 1597: tag-file-id write-file throw
1598: last-loadfilename 2!
1599: s" ,0" tag-file-id write-line throw
1600: THEN ;
1601:
1602: : cross-tag-entry ( -- )
1603: tlast @ 0<> \ not an anonymous (i.e. noname) header
1604: IF
1605: put-load-file-name
1606: source >in @ min tag-file-id write-file throw
1607: tag-beg count tag-file-id write-file throw
1.77 jwilke 1608: tlast @ >image count 1F and tag-file-id write-file throw
1.28 pazsan 1609: tag-end count tag-file-id write-file throw
1.31 anton 1610: base @ decimal sourceline# 0 <# #s #> tag-file-id write-file throw
1.28 pazsan 1611: \ >in @ 0 <# #s [char] , hold #> tag-file-id write-line throw
1612: s" ,0" tag-file-id write-line throw
1613: base !
1614: THEN ;
1615:
1.43 pazsan 1616: \ Check for words
1617:
1618: Defer skip? ' false IS skip?
1619:
1.75 jwilke 1620: : skipdef ( <name> -- )
1.79 jwilke 1621: \G skip definition of an undefined word in undef-words and
1622: \G all-words mode
1.75 jwilke 1623: ghost dup forward?
1624: IF >magic <skip> swap !
1625: ELSE drop THEN ;
1626:
1.77 jwilke 1627: : tdefined? ( -- flag ) \ name
1.75 jwilke 1628: ghost undefined? 0= ;
1629:
1630: : defined2? ( -- flag ) \ name
1631: \G return true for anything else than forward, even for <skip>
1632: \G that's what we want
1.52 jwilke 1633: ghost forward? 0= ;
1.43 pazsan 1634:
1.79 jwilke 1635: : forced? ( -- flag ) \ name
1636: \G return ture if it is a foreced skip with defskip
1637: ghost >magic @ <skip> = ;
1638:
1.43 pazsan 1639: : needed? ( -- flag ) \ name
1.48 anton 1640: \G returns a false flag when
1641: \G a word is not defined
1642: \G a forward reference exists
1643: \G so the definition is not skipped!
1644: bl word gfind
1.75 jwilke 1645: IF dup undefined?
1.48 anton 1646: nip
1647: 0=
1648: ELSE drop true THEN ;
1.43 pazsan 1649:
1.44 pazsan 1650: : doer? ( -- flag ) \ name
1651: ghost >magic @ <do:> = ;
1652:
1.43 pazsan 1653: : skip-defs ( -- )
1654: BEGIN refill WHILE source -trailing nip 0= UNTIL THEN ;
1655:
1.28 pazsan 1656: \ Target header creation
1657:
1.54 pazsan 1658: Variable NoHeaderFlag
1659: NoHeaderFlag off
1.1 anton 1660:
1.54 pazsan 1661: : 0.r ( n1 n2 -- )
1662: base @ >r hex
1663: 0 swap <# 0 ?DO # LOOP #> type
1664: r> base ! ;
1.84 jwilke 1665:
1666: : .sym ( adr len -- )
1667: \G escapes / and \ to produce sed output
1.52 jwilke 1668: bounds
1669: DO I c@ dup
1.77 jwilke 1670: CASE [char] / OF drop ." \/" ENDOF
1671: [char] \ OF drop ." \\" ENDOF
1.52 jwilke 1672: dup OF emit ENDOF
1673: ENDCASE
1.54 pazsan 1674: LOOP ;
1.52 jwilke 1675:
1.43 pazsan 1676: : (Theader ( "name" -- ghost )
1.54 pazsan 1677: \ >in @ bl word count type 2 spaces >in !
1678: \ wordheaders will always be compiled to rom
1679: switchrom
1680: \ build header in target
1681: NoHeaderFlag @
1682: IF NoHeaderFlag off
1683: ELSE
1684: T align H view,
1.78 jwilke 1685: tlast @ dup 0> IF tcell - THEN T A, H there tlast !
1.54 pazsan 1686: 1 headers-named +! \ Statistic
1687: >in @ T name, H >in !
1688: THEN
1689: T cfalign here H tlastcfa !
1.84 jwilke 1690: \ Old Symbol table sed-script
1.54 pazsan 1691: \ >in @ cr ." sym:s/CFA=" there 4 0.r ." /" bl word count .sym ." /g" cr >in !
1.78 jwilke 1692: ghost
1.84 jwilke 1693: \ output symbol table to extra file
1694: [ [IFDEF] fd-symbol-table ]
1695: base @ hex there s>d <# 8 0 DO # LOOP #> fd-symbol-table write-file throw base !
1696: s" :" fd-symbol-table write-file throw
1697: dup >ghostname fd-symbol-table write-line throw
1698: [ [THEN] ]
1.54 pazsan 1699: dup Last-Header-Ghost !
1700: dup >magic ^imm ! \ a pointer for immediate
1701: Already @
1702: IF dup >end tdoes !
1703: ELSE 0 tdoes !
1704: THEN
1.89 anton 1705: alias-mask flag!
1.54 pazsan 1706: cross-doc-entry cross-tag-entry ;
1.1 anton 1707:
1708: VARIABLE ;Resolve 1 cells allot
1.52 jwilke 1709: \ this is the resolver information from ":"
1710: \ resolving is done by ";"
1.1 anton 1711:
1.11 pazsan 1712: : Theader ( "name" -- ghost )
1713: (THeader dup there resolve 0 ;Resolve ! ;
1.1 anton 1714:
1715: >TARGET
1716: : Alias ( cfa -- ) \ name
1.43 pazsan 1717: >in @ skip? IF 2drop EXIT THEN >in !
1.53 jwilke 1718: dup 0< s" prims" T $has? H 0= and
1.43 pazsan 1719: IF
1.53 jwilke 1720: .sourcepos ." needs prim: " >in @ bl word count type >in ! cr
1.43 pazsan 1721: THEN
1.89 anton 1722: (THeader over resolve T A, H alias-mask flag! ;
1.42 pazsan 1723: : Alias: ( cfa -- ) \ name
1.43 pazsan 1724: >in @ skip? IF 2drop EXIT THEN >in !
1.53 jwilke 1725: dup 0< s" prims" T $has? H 0= and
1.43 pazsan 1726: IF
1.53 jwilke 1727: .sourcepos ." needs doer: " >in @ bl word count type >in ! cr
1.43 pazsan 1728: THEN
1729: ghost tuck swap resolve <do:> swap >magic ! ;
1.64 pazsan 1730:
1731: Variable prim#
1732: : first-primitive ( n -- ) prim# ! ;
1733: : Primitive ( -- ) \ name
1734: prim# @ T Alias H -1 prim# +! ;
1.1 anton 1735: >CROSS
1736:
1737: \ Conditionals and Comments 11may93jaw
1738:
1739: : ;Cond
1740: postpone ;
1741: swap ! ; immediate
1742:
1743: : Cond: ( -- ) \ name {code } ;
1744: atonce on
1745: ghost
1746: >exec
1747: :NONAME ;
1748:
1749: : restrict? ( -- )
1750: \ aborts on interprete state - ae
1751: state @ 0= ABORT" CROSS: Restricted" ;
1752:
1753: : Comment ( -- )
1754: >in @ atonce on ghost swap >in ! ' swap >exec ! ;
1755:
1756: Comment ( Comment \
1757:
1758: \ compile 10may93jaw
1759:
1760: : compile ( -- ) \ name
1761: restrict?
1.13 pazsan 1762: bl word gfind dup 0= ABORT" CROSS: Can't compile "
1.1 anton 1763: 0> ( immediate? )
1764: IF >exec @ compile,
1765: ELSE postpone literal postpone gexecute THEN ;
1766: immediate
1767:
1.52 jwilke 1768: : [G']
1769: \G ticks a ghost and returns its address
1770: bl word gfind 0= ABORT" CROSS: Ghost don't exists"
1771: state @
1772: IF postpone literal
1773: THEN ; immediate
1774:
1775: : ghost>cfa
1.75 jwilke 1776: dup undefined? ABORT" CROSS: forward " >link @ ;
1.52 jwilke 1777:
1778: >TARGET
1779:
1780: : ' ( -- cfa )
1781: \ returns the target-cfa of a ghost
1782: bl word gfind 0= ABORT" CROSS: Ghost don't exists"
1783: ghost>cfa ;
1784:
1785: Cond: ['] T ' H alit, ;Cond
1786:
1787: >CROSS
1788:
1789: : [T']
1790: \ returns the target-cfa of a ghost, or compiles it as literal
1791: postpone [G'] state @ IF postpone ghost>cfa ELSE ghost>cfa THEN ; immediate
1.42 pazsan 1792:
1.52 jwilke 1793: \ \ threading modell 13dec92py
1794: \ modularized 14jun97jaw
1795:
1796: : fillcfa ( usedcells -- )
1.78 jwilke 1797: T cells H xt>body swap - 0 ?DO 0 X c, tchar +LOOP ;
1.52 jwilke 1798:
1799: : (>body) ( cfa -- pfa ) xt>body + ; ' (>body) T IS >body H
1800:
1801: : (doer,) ( ghost -- ) ]comp gexecute comp[ 1 fillcfa ; ' (doer,) IS doer,
1802:
1803: : (docol,) ( -- ) [G'] :docol doer, ; ' (docol,) IS docol,
1804:
1805: : (doprim,) ( -- )
1806: there xt>body + ca>native T a, H 1 fillcfa ; ' (doprim,) IS doprim,
1807:
1808: : (doeshandler,) ( -- )
1809: T cfalign H compile :doesjump T 0 , H ; ' (doeshandler,) IS doeshandler,
1810:
1811: : (dodoes,) ( does-action-ghost -- )
1812: ]comp [G'] :dodoes gexecute comp[
1813: addr,
1814: T here H tcell - reloff 2 fillcfa ; ' (dodoes,) IS dodoes,
1815:
1816: : (lit,) ( n -- ) compile lit T , H ; ' (lit,) IS lit,
1817:
1.67 jwilke 1818: \ if we dont produce relocatable code alit, defaults to lit, jaw
1.84 jwilke 1819: \ this is just for convenience, so we don't have to define alit,
1820: \ seperately for embedded systems....
1821: T has? relocate H
1.67 jwilke 1822: [IF]
1.66 pazsan 1823: : (alit,) ( n -- ) compile lit T a, H ; ' (alit,) IS alit,
1.67 jwilke 1824: [ELSE]
1825: : (alit,) ( n -- ) lit, ; ' (alit,) IS alit,
1826: [THEN]
1.52 jwilke 1827:
1828: : (fini,) compile ;s ; ' (fini,) IS fini,
1.42 pazsan 1829:
1.43 pazsan 1830: [IFUNDEF] (code)
1831: Defer (code)
1832: Defer (end-code)
1833: [THEN]
1834:
1.1 anton 1835: >TARGET
1.43 pazsan 1836: : Code
1.52 jwilke 1837: defempty?
1.48 anton 1838: (THeader there resolve
1.53 jwilke 1839: [ T e? prims H 0= [IF] T e? ITC H [ELSE] true [THEN] ] [IF]
1.52 jwilke 1840: doprim,
1.48 anton 1841: [THEN]
1842: depth (code) ;
1.43 pazsan 1843:
1844: : Code:
1.52 jwilke 1845: defempty?
1.48 anton 1846: ghost dup there ca>native resolve <do:> swap >magic !
1.43 pazsan 1847: depth (code) ;
1848:
1849: : end-code
1.52 jwilke 1850: (end-code)
1.43 pazsan 1851: depth ?dup IF 1- <> ABORT" CROSS: Stack changed"
1852: ELSE true ABORT" CROSS: Stack empty" THEN
1.52 jwilke 1853: ;
1.14 anton 1854:
1.1 anton 1855: >CROSS
1.52 jwilke 1856:
1.1 anton 1857: \ tLiteral 12dec92py
1858:
1859: >TARGET
1.40 pazsan 1860: Cond: \G T-\G ;Cond
1861:
1.1 anton 1862: Cond: Literal ( n -- ) restrict? lit, ;Cond
1863: Cond: ALiteral ( n -- ) restrict? alit, ;Cond
1864:
1865: : Char ( "<char>" -- ) bl word char+ c@ ;
1866: Cond: [Char] ( "<char>" -- ) restrict? Char lit, ;Cond
1867:
1.43 pazsan 1868: \ some special literals 27jan97jaw
1869:
1.52 jwilke 1870: \ !! Known Bug: Special Literals and plug-ins work only correct
1871: \ on 16 and 32 Bit Targets and 32 Bit Hosts!
1872:
1.43 pazsan 1873: Cond: MAXU
1.52 jwilke 1874: restrict?
1875: tcell 1 cells u>
1876: IF compile lit tcell 0 ?DO FF T c, H LOOP
1.77 jwilke 1877: ELSE ffffffff lit, THEN
1.52 jwilke 1878: ;Cond
1.43 pazsan 1879:
1880: Cond: MINI
1.52 jwilke 1881: restrict?
1882: tcell 1 cells u>
1883: IF compile lit bigendian
1884: IF 80 T c, H tcell 1 ?DO 0 T c, H LOOP
1885: ELSE tcell 1 ?DO 0 T c, H LOOP 80 T c, H
1886: THEN
1.77 jwilke 1887: ELSE tcell 2 = IF 8000 ELSE 80000000 THEN lit, THEN
1.52 jwilke 1888: ;Cond
1.43 pazsan 1889:
1890: Cond: MAXI
1.52 jwilke 1891: restrict?
1892: tcell 1 cells u>
1893: IF compile lit bigendian
1894: IF 7F T c, H tcell 1 ?DO FF T c, H LOOP
1895: ELSE tcell 1 ?DO FF T c, H LOOP 7F T c, H
1896: THEN
1.77 jwilke 1897: ELSE tcell 2 = IF 7fff ELSE 7fffffff THEN lit, THEN
1.43 pazsan 1898: ;Cond
1899:
1.1 anton 1900: >CROSS
1901: \ Target compiling loop 12dec92py
1902: \ ">tib trick thrown out 10may93jaw
1903: \ number? defined at the top 11may93jaw
1.77 jwilke 1904: \ replaced >in by save-input
1905:
1906: : discard 0 ?DO drop LOOP ;
1.1 anton 1907:
1908: \ compiled word might leave items on stack!
1.77 jwilke 1909: : tcom ( x1 .. xn n name -- )
1910: \ dup count type space
1911: gfind ?dup
1912: IF >r >r discard r> r>
1913: 0> IF >exec @ execute
1914: ELSE gexecute THEN
1915: EXIT
1916: THEN
1917: number? dup
1918: IF 0> IF swap lit, THEN lit, discard
1919: ELSE 2drop restore-input throw ghost gexecute THEN ;
1.1 anton 1920:
1921: >TARGET
1922: \ : ; DOES> 13dec92py
1923: \ ] 9may93py/jaw
1924:
1925: : ] state on
1.54 pazsan 1926: Compiling comp-state !
1.1 anton 1927: BEGIN
1.77 jwilke 1928: BEGIN save-input bl word
1929: dup c@ 0= WHILE drop discard refill 0=
1.1 anton 1930: ABORT" CROSS: End of file while target compiling"
1931: REPEAT
1932: tcom
1933: state @
1934: 0=
1935: UNTIL ;
1936:
1937: \ by the way: defining a second interpreter (a compiler-)loop
1938: \ is not allowed if a system should be ans conform
1939:
1940: : : ( -- colon-sys ) \ Name
1.52 jwilke 1941: defempty?
1942: constflag off \ don't let this flag work over colon defs
1943: \ just to go sure nothing unwanted happens
1.43 pazsan 1944: >in @ skip? IF drop skip-defs EXIT THEN >in !
1.1 anton 1945: (THeader ;Resolve ! there ;Resolve cell+ !
1.52 jwilke 1946: docol, ]comp depth T ] H ;
1.1 anton 1947:
1.37 pazsan 1948: : :noname ( -- colon-sys )
1.52 jwilke 1949: T cfalign H there docol, 0 ;Resolve ! depth T ] H ;
1.37 pazsan 1950:
1.2 pazsan 1951: Cond: EXIT ( -- ) restrict? compile ;S ;Cond
1.6 anton 1952:
1953: Cond: ?EXIT ( -- ) 1 abort" CROSS: using ?exit" ;Cond
1.2 pazsan 1954:
1.52 jwilke 1955: >CROSS
1956: : LastXT ;Resolve @ 0= abort" CROSS: no definition for LastXT"
1957: ;Resolve cell+ @ ;
1958:
1959: >TARGET
1960:
1961: Cond: recurse ( -- ) Last-Ghost @ gexecute ;Cond
1962:
1.1 anton 1963: Cond: ; ( -- ) restrict?
1964: depth ?dup IF 1- <> ABORT" CROSS: Stack changed"
1965: ELSE true ABORT" CROSS: Stack empty" THEN
1.52 jwilke 1966: fini,
1967: comp[
1968: state off
1.1 anton 1969: ;Resolve @
1970: IF ;Resolve @ ;Resolve cell+ @ resolve THEN
1.54 pazsan 1971: Interpreting comp-state !
1.1 anton 1972: ;Cond
1.54 pazsan 1973: Cond: [ restrict? state off Interpreting comp-state ! ;Cond
1.1 anton 1974:
1975: >CROSS
1.54 pazsan 1976:
1977: Create GhostDummy ghostheader
1978: <res> GhostDummy >magic !
1979:
1.52 jwilke 1980: : !does ( does-action -- )
1981: \ !! zusammenziehen und dodoes, machen!
1.54 pazsan 1982: tlastcfa @ [G'] :dovar killref
1983: \ tlastcfa @ dup there >r tdp ! compile :dodoes r> tdp ! T cell+ ! H ;
1.52 jwilke 1984: \ !! geht so nicht, da dodoes, ghost will!
1.54 pazsan 1985: GhostDummy >link ! GhostDummy
1986: tlastcfa @ >tempdp dodoes, tempdp> ;
1.1 anton 1987:
1988: >TARGET
1989: Cond: DOES> restrict?
1.52 jwilke 1990: compile (does>) doeshandler,
1991: \ resolve words made by builders
1992: tdoes @ ?dup IF @ T here H resolve THEN
1.1 anton 1993: ;Cond
1.52 jwilke 1994: : DOES> switchrom doeshandler, T here H !does depth T ] H ;
1.1 anton 1995:
1996: >CROSS
1997: \ Creation 01nov92py
1998:
1999: \ Builder 11may93jaw
2000:
1.52 jwilke 2001: : Builder ( Create-xt do:-xt "name" -- )
2002: \ builds up a builder in current vocabulary
2003: \ create-xt is executed when word is interpreted
2004: \ do:-xt is executet when the created word from builder is executed
2005: \ for do:-xt an additional entry after the normal ghost-enrys is used
2006:
1.78 jwilke 2007: Make-Ghost ( Create-xt do:-xt ghost )
2008: rot swap ( do:-xt Create-xt ghost )
2009: >exec ! , ;
2010: \ rot swap >exec dup @ ['] NoExec <>
2011: \ IF 2drop ELSE ! THEN , ;
1.1 anton 2012:
1.52 jwilke 2013: : gdoes, ( ghost -- )
2014: \ makes the codefield for a word that is built
1.75 jwilke 2015: >end @ dup undefined? 0=
1.52 jwilke 2016: IF
1.42 pazsan 2017: dup >magic @ <do:> =
1.54 pazsan 2018: IF doer,
2019: ELSE dodoes,
2020: THEN
2021: EXIT
1.52 jwilke 2022: THEN
2023: \ compile :dodoes gexecute
2024: \ T here H tcell - reloff
1.54 pazsan 2025: 2 refered
2026: 0 fillcfa
2027: ;
1.1 anton 2028:
1.52 jwilke 2029: : TCreate ( <name> -- )
2030: executed-ghost @
2031: create-forward-warn
2032: IF ['] reswarn-forward IS resolve-warning THEN
1.11 pazsan 2033: Theader >r dup gdoes,
1.77 jwilke 2034: \ stores execution semantic in the built word
1.78 jwilke 2035: \ if the word already has a semantic (concerns S", IS, .", DOES>)
2036: \ then keep it
2037: >end @ >exec @ r> >exec dup @ ['] NoExec =
2038: IF ! ELSE 2drop THEN ;
1.52 jwilke 2039:
2040: : RTCreate ( <name> -- )
2041: \ creates a new word with code-field in ram
2042: executed-ghost @
2043: create-forward-warn
2044: IF ['] reswarn-forward IS resolve-warning THEN
2045: \ make Alias
1.89 anton 2046: (THeader there 0 T a, H alias-mask flag! ( S executed-ghost new-ghost )
1.52 jwilke 2047: \ store poiter to code-field
2048: switchram T cfalign H
2049: there swap T ! H
2050: there tlastcfa !
2051: dup there resolve 0 ;Resolve !
2052: >r dup gdoes,
1.78 jwilke 2053: \ stores execution semantic in the built word
2054: \ if the word already has a semantic (concerns S", IS, .", DOES>)
2055: \ then keep it
2056: >end @ >exec @ r> >exec dup @ ['] NoExec =
2057: IF ! ELSE 2drop THEN ;
1.1 anton 2058:
2059: : Build: ( -- [xt] [colon-sys] )
1.52 jwilke 2060: :noname postpone TCreate ;
2061:
2062: : BuildSmart: ( -- [xt] [colon-sys] )
2063: :noname
1.53 jwilke 2064: [ T has? rom H [IF] ]
1.52 jwilke 2065: postpone RTCreate
2066: [ [ELSE] ]
2067: postpone TCreate
2068: [ [THEN] ] ;
1.1 anton 2069:
2070: : gdoes> ( ghost -- addr flag )
1.52 jwilke 2071: executed-ghost @
1.1 anton 2072: state @ IF gexecute true EXIT THEN
1.52 jwilke 2073: >link @ T >body H false ;
1.1 anton 2074:
2075: \ DO: ;DO 11may93jaw
2076: \ changed to ?EXIT 10may93jaw
2077:
2078: : DO: ( -- addr [xt] [colon-sys] )
2079: here ghostheader
1.11 pazsan 2080: :noname postpone gdoes> postpone ?EXIT ;
1.1 anton 2081:
1.42 pazsan 2082: : by: ( -- addr [xt] [colon-sys] ) \ name
2083: ghost
2084: :noname postpone gdoes> postpone ?EXIT ;
2085:
1.52 jwilke 2086: : ;DO ( addr [xt] [colon-sys] -- addr )
1.1 anton 2087: postpone ; ( S addr xt )
2088: over >exec ! ; immediate
2089:
2090: : by ( -- addr ) \ Name
2091: ghost >end @ ;
2092:
2093: >TARGET
2094: \ Variables and Constants 05dec92py
2095:
1.52 jwilke 2096: Build: ( n -- ) ;
2097: by: :docon ( ghost -- n ) T @ H ;DO
2098: Builder (Constant)
2099:
2100: Build: ( n -- ) T , H ;
2101: by (Constant)
2102: Builder Constant
2103:
2104: Build: ( n -- ) T A, H ;
2105: by (Constant)
2106: Builder AConstant
2107:
2108: Build: ( d -- ) T , , H ;
2109: DO: ( ghost -- d ) T dup cell+ @ swap @ H ;DO
2110: Builder 2Constant
2111:
2112: BuildSmart: ;
1.42 pazsan 2113: by: :dovar ( ghost -- addr ) ;DO
1.1 anton 2114: Builder Create
2115:
1.53 jwilke 2116: T has? rom H [IF]
1.54 pazsan 2117: Build: ( -- ) T here 0 , H switchram T align here swap ! 0 , H ( switchrom ) ;
1.52 jwilke 2118: by (Constant)
2119: Builder Variable
2120: [ELSE]
1.1 anton 2121: Build: T 0 , H ;
2122: by Create
2123: Builder Variable
1.52 jwilke 2124: [THEN]
1.1 anton 2125:
1.53 jwilke 2126: T has? rom H [IF]
1.54 pazsan 2127: Build: ( -- ) T here 0 , H switchram T align here swap ! 0 , 0 , H ( switchrom ) ;
2128: by (Constant)
2129: Builder 2Variable
2130: [ELSE]
2131: Build: T 0 , 0 , H ;
2132: by Create
2133: Builder 2Variable
2134: [THEN]
2135:
2136: T has? rom H [IF]
2137: Build: ( -- ) T here 0 , H switchram T align here swap ! 0 , H ( switchrom ) ;
1.52 jwilke 2138: by (Constant)
2139: Builder AVariable
2140: [ELSE]
1.1 anton 2141: Build: T 0 A, H ;
2142: by Create
2143: Builder AVariable
1.52 jwilke 2144: [THEN]
1.1 anton 2145:
1.3 pazsan 2146: \ User variables 04may94py
2147:
2148: >CROSS
1.78 jwilke 2149:
1.3 pazsan 2150: Variable tup 0 tup !
2151: Variable tudp 0 tudp !
1.78 jwilke 2152:
1.3 pazsan 2153: : u, ( n -- udp )
2154: tup @ tudp @ + T ! H
1.19 pazsan 2155: tudp @ dup T cell+ H tudp ! ;
1.78 jwilke 2156:
1.3 pazsan 2157: : au, ( n -- udp )
2158: tup @ tudp @ + T A! H
1.19 pazsan 2159: tudp @ dup T cell+ H tudp ! ;
1.78 jwilke 2160:
1.3 pazsan 2161: >TARGET
2162:
1.78 jwilke 2163: Build: 0 u, X , ;
2164: by: :douser ( ghost -- up-addr ) X @ tup @ + ;DO
1.1 anton 2165: Builder User
2166:
1.78 jwilke 2167: Build: 0 u, X , 0 u, drop ;
1.3 pazsan 2168: by User
1.1 anton 2169: Builder 2User
2170:
1.78 jwilke 2171: Build: 0 au, X , ;
1.3 pazsan 2172: by User
1.1 anton 2173: Builder AUser
2174:
1.52 jwilke 2175: BuildSmart: T , H ;
1.44 pazsan 2176: by (Constant)
1.1 anton 2177: Builder Value
2178:
1.52 jwilke 2179: BuildSmart: T A, H ;
1.44 pazsan 2180: by (Constant)
1.32 pazsan 2181: Builder AValue
2182:
1.52 jwilke 2183: BuildSmart: ( -- ) [T'] noop T A, H ;
1.42 pazsan 2184: by: :dodefer ( ghost -- ) ABORT" CROSS: Don't execute" ;DO
1.1 anton 2185: Builder Defer
1.37 pazsan 2186:
1.78 jwilke 2187: Build: ( inter comp -- ) swap T immediate A, A, H ;
1.37 pazsan 2188: DO: ( ghost -- ) ABORT" CROSS: Don't execute" ;DO
1.38 anton 2189: Builder interpret/compile:
1.24 pazsan 2190:
2191: \ Sturctures 23feb95py
2192:
2193: >CROSS
2194: : nalign ( addr1 n -- addr2 )
2195: \ addr2 is the aligned version of addr1 wrt the alignment size n
2196: 1- tuck + swap invert and ;
2197: >TARGET
2198:
1.44 pazsan 2199: Build: ;
2200: by: :dofield T @ H + ;DO
2201: Builder (Field)
2202:
1.51 anton 2203: Build: ( align1 offset1 align size "name" -- align2 offset2 )
2204: rot dup T , H ( align1 align size offset1 )
2205: + >r nalign r> ;
1.44 pazsan 2206: by (Field)
1.24 pazsan 2207: Builder Field
2208:
1.51 anton 2209: : struct T 1 chars 0 H ;
1.24 pazsan 2210: : end-struct T 2Constant H ;
2211:
1.52 jwilke 2212: : cell% ( n -- size align )
1.51 anton 2213: T 1 cells H dup ;
1.88 pazsan 2214:
1.91 pazsan 2215: Build: ( m v -- m' v ) dup T , cell+ H ;
1.88 pazsan 2216: DO: abort" Not in cross mode" ;DO
2217: Builder input-method
2218:
2219: Build: ( m v size -- m v' ) over T , H + ;
2220: DO: abort" Not in cross mode" ;DO
2221: Builder input-var
1.24 pazsan 2222:
1.52 jwilke 2223: \ structural conditionals 17dec92py
2224:
2225: >CROSS
2226: : ?struc ( flag -- ) ABORT" CROSS: unstructured " ;
2227: : sys? ( sys -- sys ) dup 0= ?struc ;
2228: : >mark ( -- sys ) T here ( dup ." M" hex. ) 0 , H ;
2229:
1.78 jwilke 2230: : branchoffset ( src dest -- ) - tchar / ; \ ?? jaw
1.52 jwilke 2231:
1.78 jwilke 2232: : >resolve ( sys -- )
2233: X here ( dup ." >" hex. ) over branchoffset swap X ! ;
1.52 jwilke 2234:
1.78 jwilke 2235: : <resolve ( sys -- )
2236: X here ( dup ." <" hex. ) branchoffset X , ;
1.52 jwilke 2237:
1.78 jwilke 2238: :noname compile branch X here branchoffset X , ;
1.54 pazsan 2239: IS branch, ( target-addr -- )
1.78 jwilke 2240: :noname compile ?branch X here branchoffset X , ;
1.54 pazsan 2241: IS ?branch, ( target-addr -- )
2242: :noname compile branch T here 0 , H ;
2243: IS branchmark, ( -- branchtoken )
2244: :noname compile ?branch T here 0 , H ;
2245: IS ?branchmark, ( -- branchtoken )
2246: :noname T here 0 , H ;
2247: IS ?domark, ( -- branchtoken )
1.78 jwilke 2248: :noname dup X @ ?struc X here over branchoffset swap X ! ;
1.54 pazsan 2249: IS branchtoresolve, ( branchtoken -- )
1.78 jwilke 2250: :noname branchto, X here ;
1.54 pazsan 2251: IS branchtomark, ( -- target-addr )
1.52 jwilke 2252:
2253: >TARGET
2254:
2255: \ Structural Conditionals 12dec92py
2256:
2257: Cond: BUT restrict? sys? swap ;Cond
2258: Cond: YET restrict? sys? dup ;Cond
2259:
2260: >CROSS
2261:
1.78 jwilke 2262: Variable tleavings 0 tleavings !
1.52 jwilke 2263:
1.54 pazsan 2264: : (done) ( addr -- )
2265: tleavings @
2266: BEGIN dup
2267: WHILE
2268: >r dup r@ cell+ @ \ address of branch
2269: u> 0= \ lower than DO?
2270: WHILE
2271: r@ 2 cells + @ \ branch token
2272: branchtoresolve,
2273: r@ @ r> free throw
2274: REPEAT r> THEN
2275: tleavings ! drop ;
2276:
1.53 jwilke 2277: >TARGET
2278:
1.54 pazsan 2279: Cond: DONE ( addr -- ) restrict? (done) ;Cond
1.53 jwilke 2280:
2281: >CROSS
1.54 pazsan 2282: : (leave) ( branchtoken -- )
1.53 jwilke 2283: 3 cells allocate throw >r
2284: T here H r@ cell+ !
2285: r@ 2 cells + !
2286: tleavings @ r@ !
2287: r> tleavings ! ;
2288: >TARGET
2289:
1.54 pazsan 2290: Cond: LEAVE restrict? branchmark, (leave) ;Cond
2291: Cond: ?LEAVE restrict? compile 0= ?branchmark, (leave) ;Cond
1.53 jwilke 2292:
1.54 pazsan 2293: >CROSS
2294: \ !!JW ToDo : Move to general tools section
2295:
2296: : to1 ( x1 x2 xn n -- addr )
2297: \G packs n stack elements in a allocated memory region
2298: dup dup 1+ cells allocate throw dup >r swap 1+
2299: 0 DO tuck ! cell+ LOOP
2300: drop r> ;
2301: : 1to ( addr -- x1 x2 xn )
2302: \G unpacks the elements saved by to1
2303: dup @ swap over cells + swap
2304: 0 DO dup @ swap 1 cells - LOOP
2305: free throw ;
2306:
2307: : loop] branchto, dup <resolve tcell - (done) ;
2308:
2309: : skiploop] ?dup IF branchto, branchtoresolve, THEN ;
2310:
2311: >TARGET
2312:
1.52 jwilke 2313: \ Structural Conditionals 12dec92py
2314:
1.53 jwilke 2315: >TARGET
1.52 jwilke 2316: Cond: AHEAD restrict? branchmark, ;Cond
2317: Cond: IF restrict? ?branchmark, ;Cond
2318: Cond: THEN restrict? sys? branchto, branchtoresolve, ;Cond
2319: Cond: ELSE restrict? sys? compile AHEAD swap compile THEN ;Cond
2320:
2321: Cond: BEGIN restrict? branchtomark, ;Cond
2322: Cond: WHILE restrict? sys? compile IF swap ;Cond
2323: Cond: AGAIN restrict? sys? branch, ;Cond
2324: Cond: UNTIL restrict? sys? ?branch, ;Cond
2325: Cond: REPEAT restrict? over 0= ?struc compile AGAIN compile THEN ;Cond
2326:
2327: Cond: CASE restrict? 0 ;Cond
2328: Cond: OF restrict? 1+ >r compile over compile =
2329: compile IF compile drop r> ;Cond
1.45 pazsan 2330: Cond: ENDOF restrict? >r compile ELSE r> ;Cond
2331: Cond: ENDCASE restrict? compile drop 0 ?DO compile THEN LOOP ;Cond
1.1 anton 2332:
2333: \ Structural Conditionals 12dec92py
2334:
1.67 jwilke 2335: :noname \ ?? i think 0 is too much! jaw
1.54 pazsan 2336: 0 compile (do)
2337: branchtomark, 2 to1 ;
2338: IS do, ( -- target-addr )
2339:
2340: \ :noname
2341: \ compile 2dup compile = compile IF
2342: \ compile 2drop compile ELSE
2343: \ compile (do) branchtomark, 2 to1 ;
2344: \ IS ?do,
2345:
2346: :noname
2347: 0 compile (?do) ?domark, (leave)
2348: branchtomark, 2 to1 ;
2349: IS ?do, ( -- target-addr )
2350: :noname compile (for) branchtomark, ;
2351: IS for, ( -- target-addr )
2352: :noname 1to compile (loop) loop] compile unloop skiploop] ;
2353: IS loop, ( target-addr -- )
2354: :noname 1to compile (+loop) loop] compile unloop skiploop] ;
2355: IS +loop, ( target-addr -- )
2356: :noname compile (next) loop] compile unloop ;
2357: IS next, ( target-addr -- )
2358:
2359: Cond: DO restrict? do, ;Cond
2360: Cond: ?DO restrict? ?do, ;Cond
2361: Cond: FOR restrict? for, ;Cond
2362:
2363: Cond: LOOP restrict? sys? loop, ;Cond
2364: Cond: +LOOP restrict? sys? +loop, ;Cond
2365: Cond: NEXT restrict? sys? next, ;Cond
1.52 jwilke 2366:
1.1 anton 2367: \ String words 23feb93py
2368:
1.52 jwilke 2369: : ," [char] " parse T string, align H ;
1.1 anton 2370:
2371: Cond: ." restrict? compile (.") T ," H ;Cond
2372: Cond: S" restrict? compile (S") T ," H ;Cond
2373: Cond: ABORT" restrict? compile (ABORT") T ," H ;Cond
2374:
2375: Cond: IS T ' >body H compile ALiteral compile ! ;Cond
1.66 pazsan 2376: : IS T >address ' >body ! H ;
1.9 pazsan 2377: Cond: TO T ' >body H compile ALiteral compile ! ;Cond
2378: : TO T ' >body ! H ;
1.1 anton 2379:
1.52 jwilke 2380: Cond: defers T ' >body @ compile, H ;Cond
2381: : on T -1 swap ! H ;
2382: : off T 0 swap ! H ;
2383:
1.1 anton 2384: \ LINKED ERR" ENV" 2ENV" 18may93jaw
2385:
2386: \ linked list primitive
1.79 jwilke 2387: : linked X here over X @ X A, swap X ! ;
1.52 jwilke 2388: : chained T linked A, H ;
1.1 anton 2389:
2390: : err" s" ErrLink linked" evaluate T , H
1.52 jwilke 2391: [char] " parse T string, align H ;
1.1 anton 2392:
2393: : env" [char] " parse s" EnvLink linked" evaluate
1.52 jwilke 2394: T string, align , H ;
1.1 anton 2395:
2396: : 2env" [char] " parse s" EnvLink linked" evaluate
1.52 jwilke 2397: here >r T string, align , , H
1.1 anton 2398: r> dup T c@ H 80 and swap T c! H ;
2399:
2400: \ compile must be last 22feb93py
2401:
2402: Cond: compile ( -- ) restrict? \ name
1.13 pazsan 2403: bl word gfind dup 0= ABORT" CROSS: Can't compile"
1.1 anton 2404: 0> IF gexecute
2405: ELSE dup >magic @ <imm> =
2406: IF gexecute
1.54 pazsan 2407: ELSE compile (compile) addr, THEN THEN ;Cond
1.1 anton 2408:
2409: Cond: postpone ( -- ) restrict? \ name
1.13 pazsan 2410: bl word gfind dup 0= ABORT" CROSS: Can't compile"
1.1 anton 2411: 0> IF gexecute
2412: ELSE dup >magic @ <imm> =
2413: IF gexecute
1.54 pazsan 2414: ELSE compile (compile) addr, THEN THEN ;Cond
2415:
1.77 jwilke 2416: \ save-cross 17mar93py
2417:
2418: hex
2419:
2420: >CROSS
2421: Create magic s" Gforth2x" here over allot swap move
2422:
2423: bigendian 1+ \ strangely, in magic big=0, little=1
2424: tcell 1 = 0 and or
2425: tcell 2 = 2 and or
2426: tcell 4 = 4 and or
2427: tcell 8 = 6 and or
2428: tchar 1 = 00 and or
2429: tchar 2 = 28 and or
2430: tchar 4 = 50 and or
2431: tchar 8 = 78 and or
2432: magic 7 + c!
2433:
2434: : save-cross ( "image-name" "binary-name" -- )
2435: bl parse ." Saving to " 2dup type cr
2436: w/o bin create-file throw >r
2437: TNIL IF
1.80 anton 2438: s" #! " r@ write-file throw
2439: bl parse r@ write-file throw
2440: s" --image-file" r@ write-file throw
1.77 jwilke 2441: #lf r@ emit-file throw
2442: r@ dup file-position throw drop 8 mod 8 swap ( file-id limit index )
2443: ?do
2444: bl over emit-file throw
2445: loop
2446: drop
2447: magic 8 r@ write-file throw \ write magic
2448: ELSE
2449: bl parse 2drop
2450: THEN
2451: image @ there
2452: r@ write-file throw \ write image
2453: TNIL IF
2454: bit$ @ there 1- tcell>bit rshift 1+
2455: r@ write-file throw \ write tags
2456: THEN
2457: r> close-file throw ;
2458:
2459: : save-region ( addr len -- )
2460: bl parse w/o bin create-file throw >r
2461: swap >image swap r@ write-file throw
2462: r> close-file throw ;
2463:
1.54 pazsan 2464: \ \ minimal definitions
2465:
1.77 jwilke 2466: >MINIMAL also minimal
2467:
1.1 anton 2468: \ Usefull words 13feb93py
2469:
2470: : KB 400 * ;
2471:
1.54 pazsan 2472: \ \ [IF] [ELSE] [THEN] ... 14sep97jaw
2473:
2474: \ it is useful to define our own structures and not to rely
2475: \ on the words in the compiler
2476: \ The words in the compiler might be defined with vocabularies
2477: \ this doesn't work with our self-made compile-loop
2478:
2479: Create parsed 20 chars allot \ store word we parsed
2480:
2481: : upcase
2482: parsed count bounds
2483: ?DO I c@ toupper I c! LOOP ;
2484:
2485: : [ELSE]
2486: 1 BEGIN
2487: BEGIN bl word count dup WHILE
1.77 jwilke 2488: comment? 20 umin parsed place upcase parsed count
1.54 pazsan 2489: 2dup s" [IF]" compare 0= >r
2490: 2dup s" [IFUNDEF]" compare 0= >r
2491: 2dup s" [IFDEF]" compare 0= r> or r> or
2492: IF 2drop 1+
2493: ELSE 2dup s" [ELSE]" compare 0=
2494: IF 2drop 1- dup
2495: IF 1+
2496: THEN
2497: ELSE
2498: 2dup s" [ENDIF]" compare 0= >r
2499: s" [THEN]" compare 0= r> or
2500: IF 1- THEN
2501: THEN
2502: THEN
2503: ?dup 0= ?EXIT
2504: REPEAT
2505: 2drop refill 0=
2506: UNTIL drop ; immediate
2507:
2508: : [THEN] ( -- ) ; immediate
2509:
2510: : [ENDIF] ( -- ) ; immediate
2511:
2512: : [IF] ( flag -- )
2513: 0= IF postpone [ELSE] THEN ; immediate
2514:
2515: Cond: [IF] postpone [IF] ;Cond
2516: Cond: [THEN] postpone [THEN] ;Cond
2517: Cond: [ELSE] postpone [ELSE] ;Cond
2518:
1.1 anton 2519: \ define new [IFDEF] and [IFUNDEF] 20may93jaw
2520:
1.77 jwilke 2521: : defined? tdefined? ;
1.44 pazsan 2522: : needed? needed? ;
2523: : doer? doer? ;
1.1 anton 2524:
1.52 jwilke 2525: \ we want to use IFDEF on compiler directives (e.g. E?) in the source, too
2526:
2527: : directive?
1.77 jwilke 2528: bl word count [ ' target >wordlist ] literal search-wordlist
1.52 jwilke 2529: dup IF nip THEN ;
2530:
2531: : [IFDEF] >in @ directive? swap >in !
1.77 jwilke 2532: 0= IF tdefined? ELSE name 2drop true THEN
1.52 jwilke 2533: postpone [IF] ;
2534:
1.77 jwilke 2535: : [IFUNDEF] tdefined? 0= postpone [IF] ;
1.1 anton 2536:
1.54 pazsan 2537: Cond: [IFDEF] postpone [IFDEF] ;Cond
2538:
2539: Cond: [IFUNDEF] postpone [IFUNDEF] ;Cond
2540:
1.1 anton 2541: \ C: \- \+ Conditional Compiling 09jun93jaw
2542:
1.77 jwilke 2543: : C: >in @ tdefined? 0=
2544: IF >in ! X :
1.1 anton 2545: ELSE drop
2546: BEGIN bl word dup c@
2547: IF count comment? s" ;" compare 0= ?EXIT
2548: ELSE refill 0= ABORT" CROSS: Out of Input while C:"
2549: THEN
2550: AGAIN
2551: THEN ;
2552:
1.74 jwilke 2553: : d? d? ;
2554:
2555: \G doesn't skip line when debug switch is on
2556: : \D D? 0= IF postpone \ THEN ;
1.52 jwilke 2557:
1.48 anton 2558: \G interprets the line if word is not defined
1.77 jwilke 2559: : \- tdefined? IF postpone \ THEN ;
1.48 anton 2560:
2561: \G interprets the line if word is defined
1.77 jwilke 2562: : \+ tdefined? 0= IF postpone \ THEN ;
1.1 anton 2563:
1.48 anton 2564: Cond: \- \- ;Cond
2565: Cond: \+ \+ ;Cond
1.52 jwilke 2566: Cond: \D \D ;Cond
1.48 anton 2567:
2568: : ?? bl word find IF execute ELSE drop 0 THEN ;
2569:
2570: : needed:
2571: \G defines ghost for words that we want to be compiled
2572: BEGIN >in @ bl word c@ WHILE >in ! ghost drop REPEAT drop ;
2573:
1.1 anton 2574: \ words that should be in minimal
1.52 jwilke 2575:
2576: create s-buffer 50 chars allot
2577:
1.77 jwilke 2578: bigendian Constant bigendian
1.1 anton 2579:
1.52 jwilke 2580: : here there ;
1.67 jwilke 2581: : equ constant ;
2582: : mark there constant ;
1.54 pazsan 2583:
2584: \ compiler directives
1.52 jwilke 2585: : >ram >ram ;
2586: : >rom >rom ;
2587: : >auto >auto ;
2588: : >tempdp >tempdp ;
2589: : tempdp> tempdp> ;
2590: : const constflag on ;
2591: : warnings name 3 = 0= twarnings ! drop ;
1.60 anton 2592: : | ;
2593: \ : | NoHeaderFlag on ; \ This is broken (damages the last word)
1.52 jwilke 2594:
1.48 anton 2595: : save-cross save-cross ;
1.52 jwilke 2596: : save-region save-region ;
2597: : tdump swap >image swap dump ;
2598:
1.48 anton 2599: also forth
1.52 jwilke 2600: [IFDEF] Label : Label defempty? Label ; [THEN]
2601: [IFDEF] start-macros : start-macros defempty? start-macros ; [THEN]
1.77 jwilke 2602: \ [IFDEF] builttag : builttag builttag ; [THEN]
1.48 anton 2603: previous
2604:
1.52 jwilke 2605: : s" [char] " parse s-buffer place s-buffer count ; \ for environment?
1.43 pazsan 2606: : + + ;
1.52 jwilke 2607: : 1+ 1 + ;
2608: : 2+ 2 + ;
1.43 pazsan 2609: : 1- 1- ;
2610: : - - ;
1.52 jwilke 2611: : and and ;
2612: : or or ;
1.43 pazsan 2613: : 2* 2* ;
2614: : * * ;
2615: : / / ;
2616: : dup dup ;
2617: : over over ;
2618: : swap swap ;
2619: : rot rot ;
2620: : drop drop ;
2621: : = = ;
2622: : 0= 0= ;
2623: : lshift lshift ;
2624: : 2/ 2/ ;
1.19 pazsan 2625: : . . ;
1.1 anton 2626:
1.79 jwilke 2627: : all-words ['] forced? IS skip? ;
1.43 pazsan 2628: : needed-words ['] needed? IS skip? ;
1.75 jwilke 2629: : undef-words ['] defined2? IS skip? ;
2630: : skipdef skipdef ;
1.1 anton 2631:
1.40 pazsan 2632: : \ postpone \ ; immediate
1.47 pazsan 2633: : \G T-\G ; immediate
1.40 pazsan 2634: : ( postpone ( ; immediate
1.1 anton 2635: : include bl word count included ;
1.52 jwilke 2636: : require require ;
1.1 anton 2637: : .( [char] ) parse type ;
1.52 jwilke 2638: : ." [char] " parse type ;
1.1 anton 2639: : cr cr ;
2640:
1.77 jwilke 2641: : times 0 ?DO dup X c, LOOP drop ; \ used for space table creation
2642:
2643: \ only forth also cross also minimal definitions order
1.1 anton 2644:
2645: \ cross-compiler words
2646:
2647: : decimal decimal ;
2648: : hex hex ;
2649:
1.77 jwilke 2650: \ : tudp X tudp ;
2651: \ : tup X tup ;
2652:
2653: : doc-off false to-doc ! ;
2654: : doc-on true to-doc ! ;
1.39 pazsan 2655:
1.52 jwilke 2656: [IFDEF] dbg : dbg dbg ; [THEN]
1.39 pazsan 2657:
1.1 anton 2658: \ for debugging...
2659: : order order ;
1.52 jwilke 2660: : hwords words ;
2661: : words also ghosts words previous ;
1.1 anton 2662: : .s .s ;
2663: : bye bye ;
2664:
2665: \ turnkey direction
2666: : H forth ; immediate
2667: : T minimal ; immediate
2668: : G ghosts ; immediate
2669:
1.77 jwilke 2670: : turnkey
1.78 jwilke 2671: \GFORTH 0 set-order also ghosts
2672: \ANSI [ ' ghosts >wordlist ] Literal 1 set-order
2673: also target definitions
1.77 jwilke 2674: also Minimal also ;
1.1 anton 2675:
2676: \ these ones are pefered:
2677:
2678: : lock turnkey ;
1.74 jwilke 2679: : unlock previous forth also cross ;
1.52 jwilke 2680:
1.77 jwilke 2681: \ also minimal
1.52 jwilke 2682: : [[ also unlock ;
1.78 jwilke 2683: : ]] previous previous also also ;
1.1 anton 2684:
2685: unlock definitions also minimal
2686: : lock lock ;
2687: lock
1.77 jwilke 2688:
2689: \ load cross compiler extension defined in mach file
2690:
2691: UNLOCK >CROSS
2692:
2693: [IFDEF] extend-cross extend-cross [THEN]
2694:
2695: LOCK
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