1: \ CROSS.FS The Cross-Compiler 06oct92py
2: \ Idea and implementation: Bernd Paysan (py)
3:
4: \ Copyright (C) 1995,1996,1997,1998,1999,2000,2003,2004,2005,2006,2007,2009,2010,2011 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 3
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, see http://www.gnu.org/licenses/.
20:
21: 0
22: [IF]
23:
24: ToDo:
25: - Crossdoc destination ./doc/crossdoc.fd makes no sense when
26: cross.fs is used seperately. jaw
27: - Do we need this char translation with >address and in branchoffset?
28: (>body also affected) jaw
29:
30: [THEN]
31:
32: s" compat/strcomp.fs" included
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:
66: : >cross also Cross definitions previous ;
67: : >target also Target definitions previous ;
68: : >minimal also Minimal definitions previous ;
69:
70: H
71:
72: >CROSS
73:
74: \ Test against this definitions to find out whether we are cross-compiling
75: \ may be usefull for assemblers
76: 0 Constant gforth-cross-indicator
77:
78: \ find out whether we are compiling with gforth
79:
80: : defined? bl word find nip ;
81: defined? emit-file defined? toupper and \ drop 0
82: [IF]
83: \ use this in a gforth system
84: : \GFORTH ; immediate
85: : \ANSI postpone \ ; immediate
86: [ELSE]
87: : \GFORTH postpone \ ; immediate
88: : \ANSI ; immediate
89: [THEN]
90:
91: \ANSI : [IFUNDEF] defined? 0= postpone [IF] ; immediate
92: \ANSI : [IFDEF] defined? postpone [IF] ; immediate
93: 0 \ANSI drop 1
94: [IF]
95: : \G postpone \ ; immediate
96: : rdrop postpone r> postpone drop ; immediate
97: : name bl word count ;
98: : bounds over + swap ;
99: : scan >r BEGIN dup WHILE over c@ r@ <> WHILE 1 /string REPEAT THEN rdrop ;
100: : linked here over @ , swap ! ;
101: : alias create , DOES> @ EXECUTE ;
102: : defer ['] noop alias ;
103: : is state @
104: IF ' >body postpone literal postpone !
105: ELSE ' >body ! THEN ; immediate
106: : 0>= 0< 0= ;
107: : d<> rot <> -rot <> or ;
108: : toupper dup [char] a [char] z 1+ within IF [char] A [char] a - + THEN ;
109: Variable ebuf
110: : emit-file ( c fd -- ior ) swap ebuf c! ebuf 1 chars rot write-file ;
111: 0a Constant #lf
112: 0d Constant #cr
113:
114: [IFUNDEF] Warnings Variable Warnings [THEN]
115:
116: \ \ Number parsing 23feb93py
117:
118: \ number? number 23feb93py
119:
120: Variable dpl
121:
122: hex
123: Create bases 10 , 2 , A , 100 ,
124: \ 16 2 10 character
125:
126: \ !! protect BASE saving wrapper against exceptions
127: : getbase ( addr u -- addr' u' )
128: over c@ [char] $ - dup 4 u<
129: IF
130: cells bases + @ base ! 1 /string
131: ELSE
132: drop
133: THEN ;
134:
135: : sign? ( addr u -- addr u flag )
136: over c@ [char] - = dup >r
137: IF
138: 1 /string
139: THEN
140: r> ;
141:
142: : s>unumber? ( addr u -- ud flag )
143: over [char] ' =
144: IF \ a ' alone is rather unusual :-)
145: drop char+ c@ 0 true EXIT
146: THEN
147: base @ >r dpl on getbase
148: 0. 2swap
149: BEGIN ( d addr len )
150: dup >r >number dup
151: WHILE \ there are characters left
152: dup r> -
153: WHILE \ the last >number parsed something
154: dup 1- dpl ! over c@ [char] . =
155: WHILE \ the current char is '.'
156: 1 /string
157: REPEAT THEN \ there are unparseable characters left
158: 2drop false
159: ELSE
160: rdrop 2drop true
161: THEN
162: r> base ! ;
163:
164: \ ouch, this is complicated; there must be a simpler way - anton
165: : s>number? ( addr len -- d f )
166: \ converts string addr len into d, flag indicates success
167: sign? >r
168: s>unumber?
169: 0= IF
170: rdrop false
171: ELSE \ no characters left, all ok
172: r>
173: IF
174: dnegate
175: THEN
176: true
177: THEN ;
178:
179: : s>number ( addr len -- d )
180: \ don't use this, there is no way to tell success
181: s>number? drop ;
182:
183: : snumber? ( c-addr u -- 0 / n -1 / d 0> )
184: s>number? 0=
185: IF
186: 2drop false EXIT
187: THEN
188: dpl @ dup 0< IF
189: nip
190: ELSE
191: 1+
192: THEN ;
193:
194: : (number?) ( string -- string 0 / n -1 / d 0> )
195: dup >r count snumber? dup if
196: rdrop
197: else
198: r> swap
199: then ;
200:
201: : number ( string -- d )
202: (number?) ?dup 0= abort" ?" 0<
203: IF
204: s>d
205: THEN ;
206:
207: [THEN]
208:
209: [IFUNDEF] (number?) : (number?) number? ; [THEN]
210:
211: \ this provides assert( and struct stuff
212: \GFORTH [IFUNDEF] assert1(
213: \GFORTH also forth definitions require assert.fs previous
214: \GFORTH [THEN]
215:
216: >CROSS
217:
218: hex \ the defualt base for the cross-compiler is hex !!
219: \ Warnings off
220:
221: \ words that are generaly useful
222:
223: : KB 400 * ;
224: : >wordlist ( vocabulary-xt -- wordlist-struct )
225: also execute get-order swap >r 1- set-order r> ;
226:
227: : umax 2dup u< IF swap THEN drop ;
228: : umin 2dup u> IF swap THEN drop ;
229:
230: : string, ( c-addr u -- )
231: \ puts down string as cstring
232: dup c, here swap chars dup allot move ;
233:
234: : ," [char] " parse string, ;
235:
236: : SetValue ( n -- <name> )
237: \G Same behaviour as "Value" if the <name> is not defined
238: \G Same behaviour as "to" if <name> is defined
239: \G SetValue searches in the current vocabulary
240: save-input bl word >r restore-input throw r> count
241: get-current search-wordlist
242: IF drop >r
243: \ we have to set current to be topmost context wordlist
244: get-order get-order get-current swap 1+ set-order
245: r> ['] to execute
246: set-order
247: ELSE Value THEN ;
248:
249: : DefaultValue ( n -- <name> )
250: \G Same behaviour as "Value" if the <name> is not defined
251: \G DefaultValue searches in the current vocabulary
252: save-input bl word >r restore-input throw r> count
253: get-current search-wordlist
254: IF bl word drop 2drop ELSE Value THEN ;
255:
256: hex
257:
258: \ FIXME delete`
259: \ 1 Constant Cross-Flag \ to check whether assembler compiler plug-ins are
260: \ for cross-compiling
261: \ No! we use "[IFUNDEF]" there to find out whether we are target compiling!!!
262:
263: \ FIXME move down
264: : comment? ( c-addr u -- c-addr u )
265: 2dup s" (" str=
266: IF postpone (
267: ELSE 2dup s" \" str= IF postpone \ THEN
268: THEN ;
269:
270: : X ( -- <name> )
271: \G The next word in the input is a target word.
272: \G Equivalent to T <name> but without permanent
273: \G switch to target dictionary. Used as prefix e.g. for @, !, here etc.
274: bl word count [ ' target >wordlist ] Literal search-wordlist
275: IF state @ IF compile, ELSE execute THEN
276: ELSE -1 ABORT" Cross: access method not supported!"
277: THEN ; immediate
278:
279: \ Begin CROSS COMPILER:
280:
281: \ debugging
282:
283: 0 [IF]
284:
285: This implements debugflags for the cross compiler and the compiled
286: images. It works identical to the has-flags in the environment.
287: The debugflags are defined in a vocabluary. If the word exists and
288: its value is true, the flag is switched on.
289:
290: [THEN]
291:
292: >CROSS
293:
294: Vocabulary debugflags \ debug flags for cross
295: also debugflags get-order over
296: Constant debugflags-wl
297: set-order previous
298:
299: : DebugFlag
300: get-current >r debugflags-wl set-current
301: SetValue
302: r> set-current ;
303:
304: : Debug? ( adr u -- flag )
305: \G return true if debug flag is defined or switched on
306: debugflags-wl search-wordlist
307: IF EXECUTE
308: ELSE false THEN ;
309:
310: : D? ( <name> -- flag )
311: \G return true if debug flag is defined or switched on
312: \G while compiling we do not return the current value but
313: bl word count debug? ;
314:
315: : [d?]
316: \G compile the value-xt so the debug flag can be switched
317: \G the flag must exist!
318: bl word count debugflags-wl search-wordlist
319: IF compile,
320: ELSE -1 ABORT" unknown debug flag"
321: \ POSTPONE false
322: THEN ; immediate
323:
324: : symentry ( adr len taddr -- )
325: \G Produce a symbol table (an optional symbol address
326: \G map) if wanted
327: [ [IFDEF] fd-symbol-table ]
328: base @ swap hex s>d <# 8 0 DO # LOOP #> fd-symbol-table write-file throw base !
329: s" :" fd-symbol-table write-file throw
330: fd-symbol-table write-line throw
331: [ [ELSE] ]
332: 2drop drop
333: [ [THEN] ] ;
334:
335:
336: \ \ -------------------- source file
337:
338: decimal
339:
340: Variable cross-file-list
341: 0 cross-file-list !
342: Variable target-file-list
343: 0 target-file-list !
344: Variable host-file-list
345: 0 host-file-list !
346:
347: cross-file-list Value file-list
348: 0 Value source-desc
349:
350: \ file loading
351:
352: : >fl-id 1 cells + ;
353: : >fl-name 2 cells + ;
354:
355: Variable filelist 0 filelist !
356: Create NoFile ," #load-file#"
357:
358: : loadfile ( -- adr )
359: source-desc ?dup IF >fl-name ELSE NoFile THEN ;
360:
361: : sourcefilename ( -- adr len )
362: loadfile count ;
363:
364: \ANSI : sourceline# 0 ;
365:
366: \ \ -------------------- path handling from kernel/paths.fs
367:
368: \ paths.fs path file handling 03may97jaw
369:
370: \ -Changing the search-path:
371: \ fpath+ <path> adds a directory to the searchpath
372: \ fpath= <path>|<path> makes complete now searchpath
373: \ seperator is |
374: \ .fpath displays the search path
375: \ remark I:
376: \ a ./ in the beginning of filename is expanded to the directory the
377: \ current file comes from. ./ can also be included in the search-path!
378: \ ~+/ loads from the current working directory
379:
380: \ remark II:
381: \ if there is no sufficient space for the search path increase it!
382:
383:
384: \ -Creating custom paths:
385:
386: \ It is possible to use the search mechanism on yourself.
387:
388: \ Make a buffer for the path:
389: \ create mypath 100 chars , \ maximum length (is checked)
390: \ 0 , \ real len
391: \ 100 chars allot \ space for path
392: \ use the same functions as above with:
393: \ mypath path+
394: \ mypath path=
395: \ mypath .path
396:
397: \ do a open with the search path:
398: \ open-path-file ( adr len path -- fd adr len ior )
399: \ the file is opened read-only; if the file is not found an error is generated
400:
401: \ questions to: wilke@jwdt.com
402:
403: [IFUNDEF] +place
404: : +place ( adr len adr )
405: 2dup >r >r
406: dup c@ char+ + swap move
407: r> r> dup c@ rot + swap c! ;
408: [THEN]
409:
410: [IFUNDEF] place
411: : place ( c-addr1 u c-addr2 )
412: 2dup c! char+ swap move ;
413: [THEN]
414:
415: \ if we have path handling, use this and the setup of it
416: [IFUNDEF] open-fpath-file
417:
418: create sourcepath 1024 chars , 0 , 1024 chars allot \ !! make this dynamic
419: sourcepath value fpath
420:
421: : also-path ( adr len path^ -- )
422: >r
423: \ len check
424: r@ cell+ @ over + r@ @ u> ABORT" path buffer too small!"
425: \ copy into
426: tuck r@ cell+ dup @ cell+ + swap cmove
427: \ make delimiter
428: 0 r@ cell+ dup @ cell+ + 2 pick + c! 1 + r> cell+ +!
429: ;
430:
431: : only-path ( adr len path^ -- )
432: dup 0 swap cell+ ! also-path ;
433:
434: : path+ ( path-addr "dir" -- ) \ gforth
435: \G Add the directory @var{dir} to the search path @var{path-addr}.
436: name rot also-path ;
437:
438: : fpath+ ( "dir" ) \ gforth
439: \G Add directory @var{dir} to the Forth search path.
440: fpath path+ ;
441:
442: : path= ( path-addr "dir1|dir2|dir3" ) \ gforth
443: \G Make a complete new search path; the path separator is |.
444: name 2dup bounds ?DO i c@ [char] | = IF 0 i c! THEN LOOP
445: rot only-path ;
446:
447: : fpath= ( "dir1|dir2|dir3" ) \ gforth
448: \G Make a complete new Forth search path; the path separator is |.
449: fpath path= ;
450:
451: : path>string cell+ dup cell+ swap @ ;
452:
453: : next-path ( adr len -- adr2 len2 )
454: 2dup 0 scan
455: dup 0= IF 2drop 0 -rot 0 -rot EXIT THEN
456: >r 1+ -rot r@ 1- -rot
457: r> - ;
458:
459: : previous-path ( path^ -- )
460: dup path>string
461: BEGIN tuck dup WHILE repeat ;
462:
463: : .path ( path-addr -- ) \ gforth
464: \G Display the contents of the search path @var{path-addr}.
465: path>string
466: BEGIN next-path dup WHILE type space REPEAT 2drop 2drop ;
467:
468: : .fpath ( -- ) \ gforth
469: \G Display the contents of the Forth search path.
470: fpath .path ;
471:
472: : absolut-path? ( addr u -- flag ) \ gforth
473: \G A path is absolute if it starts with a / or a ~ (~ expansion),
474: \G or if it is in the form ./*, extended regexp: ^[/~]|./, or if
475: \G it has a colon as second character ("C:..."). Paths simply
476: \G containing a / are not absolute!
477: 2dup 2 u> swap 1+ c@ [char] : = and >r \ dos absoulte: c:/....
478: over c@ [char] / = >r
479: over c@ [char] ~ = >r
480: \ 2dup S" ../" string-prefix? r> or >r \ not catered for in expandtopic
481: S" ./" string-prefix?
482: r> r> r> or or or ;
483:
484: Create ofile 0 c, 255 chars allot
485: Create tfile 0 c, 255 chars allot
486:
487: : pathsep? dup [char] / = swap [char] \ = or ;
488:
489: : need/ ofile dup c@ + c@ pathsep? 0= IF s" /" ofile +place THEN ;
490:
491: : extractpath ( adr len -- adr len2 )
492: BEGIN dup WHILE 1-
493: 2dup + c@ pathsep? IF EXIT THEN
494: REPEAT ;
495:
496: : remove~+ ( -- )
497: ofile count s" ~+/" string-prefix?
498: IF
499: ofile count 3 /string ofile place
500: THEN ;
501:
502: : expandtopic ( -- ) \ stack effect correct? - anton
503: \ expands "./" into an absolute name
504: ofile count s" ./" string-prefix?
505: IF
506: ofile count 1 /string tfile place
507: 0 ofile c! sourcefilename extractpath ofile place
508: ofile c@ IF need/ THEN
509: tfile count over c@ pathsep? IF 1 /string THEN
510: ofile +place
511: THEN ;
512:
513: : compact.. ( adr len -- adr2 len2 )
514: \ deletes phrases like "xy/.." out of our directory name 2dec97jaw
515: over swap
516: BEGIN dup WHILE
517: dup >r '/ scan 2dup s" /../" string-prefix?
518: IF
519: dup r> - >r 4 /string over r> + 4 -
520: swap 2dup + >r move dup r> over -
521: ELSE
522: rdrop dup 1 min /string
523: THEN
524: REPEAT drop over - ;
525:
526: : reworkdir ( -- )
527: remove~+
528: ofile count compact..
529: nip ofile c! ;
530:
531: : open-ofile ( -- fid ior )
532: \G opens the file whose name is in ofile
533: expandtopic reworkdir
534: ofile count r/o open-file ;
535:
536: : check-path ( adr1 len1 adr2 len2 -- fd 0 | 0 <>0 )
537: 0 ofile ! >r >r ofile place need/
538: r> r> ofile +place
539: open-ofile ;
540:
541: : open-path-file ( addr1 u1 path-addr -- wfileid addr2 u2 0 | ior ) \ gforth
542: \G Look in path @var{path-addr} for the file specified by @var{addr1 u1}.
543: \G If found, the resulting path and an open file descriptor
544: \G are returned. If the file is not found, @var{ior} is non-zero.
545: >r
546: 2dup absolut-path?
547: IF rdrop
548: ofile place open-ofile
549: dup 0= IF >r ofile count r> THEN EXIT
550: ELSE r> path>string
551: BEGIN next-path dup
552: WHILE 5 pick 5 pick check-path
553: 0= IF >r 2drop 2drop r> ofile count 0 EXIT ELSE drop THEN
554: REPEAT
555: 2drop 2drop 2drop -38
556: THEN ;
557:
558: : open-fpath-file ( addr1 u1 -- wfileid addr2 u2 0 | ior ) \ gforth
559: \G Look in the Forth search path for the file specified by @var{addr1 u1}.
560: \G If found, the resulting path and an open file descriptor
561: \G are returned. If the file is not found, @var{ior} is non-zero.
562: fpath open-path-file ;
563:
564: fpath= ~+
565:
566: [THEN]
567:
568: \ \ -------------------- include require 13may99jaw
569:
570: >CROSS
571:
572: : add-included-file ( adr len -- adr )
573: dup >fl-name char+ allocate throw >r
574: file-list @ r@ ! r@ file-list !
575: r@ >fl-name place r> ;
576:
577: : included? ( c-addr u -- f )
578: file-list
579: BEGIN @ dup
580: WHILE >r 2dup r@ >fl-name count str=
581: IF rdrop 2drop true EXIT THEN
582: r>
583: REPEAT
584: 2drop drop false ;
585:
586: false DebugFlag showincludedfiles
587:
588: : included1 ( fd adr u -- )
589: \ include file adr u / fd
590: \ we don't use fd with include-file, because the forth system
591: \ doesn't know the name of the file to get a nice error report
592: [d?] showincludedfiles
593: IF cr ." Including: " 2dup type ." ..." THEN
594: rot close-file throw
595: source-desc >r
596: add-included-file to source-desc
597: sourcefilename
598: ['] included catch
599: r> to source-desc
600: throw ;
601:
602: : included ( adr len -- )
603: cross-file-list to file-list
604: open-fpath-file throw
605: included1 ;
606:
607: : required ( adr len -- )
608: cross-file-list to file-list
609: open-fpath-file throw \ 2dup cr ." R:" type
610: 2dup included?
611: IF 2drop close-file throw
612: ELSE included1
613: THEN ;
614:
615: : include bl word count included ;
616:
617: : require bl word count required ;
618:
619: 0 [IF]
620:
621: also forth definitions previous
622:
623: : included ( adr len -- ) included ;
624:
625: : required ( adr len -- ) required ;
626:
627: : include include ;
628:
629: : require require ;
630:
631: [THEN]
632:
633: >CROSS
634: hex
635:
636: \ \ -------------------- Error Handling 05aug97jaw
637:
638: \ Flags
639:
640: also forth definitions \ these values may be predefined before
641: \ the cross-compiler is loaded
642:
643: false DefaultValue stack-warn \ check on empty stack at any definition
644: false DefaultValue create-forward-warn \ warn on forward declaration of created words
645:
646: previous >CROSS
647:
648: : .dec
649: base @ decimal swap . base ! ;
650:
651: : .sourcepos
652: cr sourcefilename type ." :"
653: sourceline# .dec ;
654:
655: : warnhead
656: \G display error-message head
657: \G perhaps with linenumber and filename
658: .sourcepos ." Warning: " ;
659:
660: : empty? depth IF .sourcepos ." Stack not empty!" THEN ;
661:
662: stack-warn [IF]
663: : defempty? empty? ;
664: [ELSE]
665: : defempty? ; immediate
666: \ : defempty? .sourcepos ;
667: [THEN]
668:
669: \ \ -------------------- Compiler Plug Ins 01aug97jaw
670:
671: >CROSS
672:
673: \ Compiler States
674:
675: Variable comp-state
676: 0 Constant interpreting
677: 1 Constant compiling
678: 2 Constant resolving
679: 3 Constant assembling
680:
681: : compiling? comp-state @ compiling = ;
682:
683: : pi-undefined -1 ABORT" Plugin undefined" ;
684:
685: : Plugin ( -- : pluginname )
686: Create
687: \ for normal cross-compiling only one action
688: \ exists, this fields are identical. For the instant
689: \ simulation environment we need, two actions for each plugin
690: \ the target one and the one that generates the simulation code
691: ['] pi-undefined , \ action
692: ['] pi-undefined , \ target plugin action
693: 8765 , \ plugin magic
694: DOES> perform ;
695:
696: Plugin DummyPlugin
697:
698: : 'PI ( -- addr : pluginname )
699: ' >body dup 2 cells + @ 8765 <> ABORT" not a plugin" ;
700:
701: : plugin-of ( xt -- : pluginname )
702: dup 'PI 2! ;
703:
704: : action-of ( xt -- : plunginname )
705: 'PI cell+ ! ;
706:
707: : TPA ( -- : plugin )
708: \ target plugin action
709: \ executes current target action of plugin
710: 'PI cell+ POSTPONE literal POSTPONE perform ; immediate
711:
712: Variable ppi-temp 0 ppi-temp !
713:
714: : pa:
715: \g define plugin action
716: ppi-temp @ ABORT" pa: definition not closed"
717: 'PI ppi-temp ! :noname ;
718:
719: : ;pa
720: \g end a definition for plugin action
721: POSTPONE ; ppi-temp @ ! 0 ppi-temp ! ; immediate
722:
723:
724: Plugin dlit, ( d -- ) \ compile numerical value the target
725: Plugin lit, ( n -- )
726: Plugin alit, ( n -- )
727:
728: Plugin branch, ( target-addr -- ) \ compiles a branch
729: Plugin ?branch, ( target-addr -- ) \ compiles a ?branch
730: Plugin branchmark, ( -- branch-addr ) \ reserves room for a branch
731: Plugin ?branchmark, ( -- branch-addr ) \ reserves room for a ?branch
732: Plugin ?domark, ( -- branch-addr ) \ reserves room for a ?do branch
733: Plugin branchto, ( -- ) \ actual program position is target of a branch (do e.g. alignment)
734: ' NOOP plugin-of branchto,
735: Plugin branchtoresolve, ( branch-addr -- ) \ resolves a forward reference from branchmark
736: Plugin branchtomark, ( -- target-addr ) \ marks a branch destination
737:
738: Plugin colon, ( tcfa -- ) \ compiles call to tcfa at current position
739: Plugin prim, ( tcfa -- ) \ compiles primitive invocation
740: Plugin colonmark, ( -- addr ) \ marks a colon call
741: Plugin colon-resolve ( tcfa addr -- )
742:
743: Plugin addr-resolve ( target-addr addr -- )
744: Plugin doer-resolve ( ghost res-pnt target-addr addr -- ghost res-pnt )
745:
746: Plugin ncontrols? ( [ xn ... x1 ] n -- ) \ checks wheter n control structures are open
747: Plugin if, ( -- if-token )
748: Plugin else, ( if-token -- if-token )
749: Plugin then, ( if-token -- )
750: Plugin ahead,
751: Plugin begin,
752: Plugin while,
753: Plugin until,
754: Plugin again,
755: Plugin repeat,
756: Plugin cs-swap ( x1 x2 -- x2 x1 )
757:
758: Plugin case, ( -- n )
759: Plugin of, ( n -- x1 n )
760: Plugin endof, ( x1 n -- x2 n )
761: Plugin endcase, ( x1 .. xn n -- )
762:
763: Plugin do, ( -- do-token )
764: Plugin ?do, ( -- ?do-token )
765: Plugin for, ( -- for-token )
766: Plugin loop, ( do-token / ?do-token -- )
767: Plugin +loop, ( do-token / ?do-token -- )
768: Plugin -loop, ( do-token / ?do-token -- )
769: Plugin next, ( for-token )
770: Plugin leave, ( -- )
771: Plugin ?leave, ( -- )
772:
773: Plugin ca>native \ Convert a code address to the processors
774: \ native address. This is used in doprim, and
775: \ code/code: primitive definitions word to
776: \ convert the addresses.
777: \ The only target where we need this is the misc
778: \ which is a 16 Bit processor with word addresses
779: \ but the forth system we build has a normal byte
780: \ addressed memory model
781:
782: Plugin doprim, \ compiles start of a primitive
783: Plugin docol, \ compiles start of a colon definition
784: Plugin doer,
785: Plugin fini, \ compiles end of definition ;s
786: Plugin doeshandler,
787: Plugin dodoes,
788:
789: Plugin colon-start
790: ' noop plugin-of colon-start
791: Plugin colon-end
792: ' noop plugin-of colon-end
793:
794: Plugin ]comp \ starts compilation
795: ' noop plugin-of ]comp
796: Plugin comp[ \ ends compilation
797: ' noop plugin-of comp[
798:
799: Plugin t>body \ we need the system >body
800: \ and the target >body
801:
802: >TARGET
803: : >body t>body ;
804:
805:
806: \ Ghost Builder 06oct92py
807:
808: >CROSS
809: hex
810: \ Values for ghost magic
811: 4711 Constant <fwd> 4712 Constant <res>
812: 4713 Constant <imm> 4714 Constant <do:>
813: 4715 Constant <skip>
814:
815: \ Bitmask for ghost flags
816: 1 Constant <unique>
817: 2 Constant <primitive>
818:
819: \ FXIME: move this to general stuff?
820: : set-flag ( addr flag -- )
821: over @ or swap ! ;
822:
823: : reset-flag ( addr flag -- )
824: invert over @ and swap ! ;
825:
826: : get-flag ( addr flag -- f )
827: swap @ and 0<> ;
828:
829:
830: Struct
831:
832: \ link to next ghost (always the first element)
833: cell% field >next-ghost
834:
835: \ type of ghost
836: cell% field >magic
837:
838: \ pointer where ghost is in target, or if unresolved
839: \ points to the where we have to resolve (linked-list)
840: cell% field >link
841:
842: \ execution semantics (while target compiling) of ghost
843: cell% field >exec
844:
845: \ compilation action of this ghost; this is what is
846: \ done to compile a call (or whatever) to this definition.
847: \ E.g. >comp contains the semantic of postpone s"
848: \ whereas >exec-compile contains the semantic of s"
849: cell% field >comp
850:
851: \ Compilation sematics (while parsing) of this ghost. E.g.
852: \ "\" will skip the rest of line.
853: \ These semantics are defined by Cond: and
854: \ if a word is made immediate in instant, then the >exec2 field
855: \ gets copied to here
856: cell% field >exec-compile
857:
858: \ Additional execution semantics of this ghost. This is used
859: \ for code generated by instant and for the doer-xt of created
860: \ words
861: cell% field >exec2
862:
863: cell% field >created
864:
865: \ the xt of the created ghost word itself
866: cell% field >ghost-xt
867:
868: \ pointer to the counted string of the assiciated
869: \ assembler label
870: cell% field >asm-name
871:
872: \ mapped primitives have a special address, so
873: \ we are able to detect them
874: cell% field >asm-dummyaddr
875:
876: \ for builder (create, variable...) words
877: \ the execution symantics of words built are placed here
878: \ this is a doer ghost or a dummy ghost
879: cell% field >do:ghost
880:
881: cell% field >ghost-flags
882:
883: cell% field >ghost-name
884:
885: End-Struct ghost-struct
886:
887: Variable ghost-list
888: 0 ghost-list !
889:
890: Variable executed-ghost \ last executed ghost, needed in tcreate and gdoes>
891: \ Variable last-ghost \ last ghost that is created
892: Variable last-header-ghost \ last ghost definitions with header
893:
894: \ space for ghosts resolve structure
895: \ we create ghosts in a sepearte space
896: \ and not to the current host dp, because this
897: \ gives trouble with instant while compiling and creating
898: \ a ghost for a forward reference
899: \ BTW: we cannot allocate another memory region
900: \ because allot will check the overflow!!
901: Variable cross-space-dp
902: Create cross-space 250000 allot here 100 allot align
903: Constant cross-space-end
904: cross-space cross-space-dp !
905: Variable cross-space-dp-orig
906:
907: : cross-space-used cross-space-dp @ cross-space - ;
908:
909: : >space ( -- )
910: dp @ cross-space-dp-orig !
911: cross-space-dp @ dp ! ;
912:
913: : space> ( -- )
914: dp @ dup cross-space-dp !
915: cross-space-end u> ABORT" CROSS: cross-space overflow"
916: cross-space-dp-orig @ dp ! ;
917:
918: \ this is just for debugging, to see this in the backtrace
919: : execute-exec execute ;
920: : execute-exec2 execute ;
921: : execute-exec-compile execute ;
922:
923: : NoExec
924: executed-ghost @ >exec2 @
925: ?dup
926: IF execute-exec2
927: ELSE true ABORT" CROSS: Don't execute ghost, or immediate target word"
928: THEN ;
929:
930: Defer is-forward
931:
932: : (ghostheader) ( -- )
933: ghost-list linked <fwd> , 0 , ['] NoExec , ['] is-forward ,
934: 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , ;
935:
936: : ghostheader ( -- ) (ghostheader) 0 , ;
937:
938: ' Ghosts >wordlist Constant ghosts-wordlist
939:
940: \ the current wordlist for ghost definitions in the host
941: ghosts-wordlist Value current-ghosts
942:
943: : Make-Ghost ( "name" -- ghost )
944: >space
945: \ save current and create in ghost vocabulary
946: get-current >r current-ghosts set-current
947: >in @ Create >in !
948: \ some forth systems like iForth need the immediate directly
949: \ after the word is created
950: \ restore current
951: r> set-current
952: here (ghostheader)
953: bl word count string, align
954: space>
955: \ set ghost-xt field by doing a search
956: dup >ghost-name count
957: current-ghosts search-wordlist
958: 0= ABORT" CROSS: Just created, must be there!"
959: over >ghost-xt !
960: DOES>
961: dup executed-ghost !
962: >exec @ execute-exec ;
963:
964: \ ghost words 14oct92py
965: \ changed: 10may93py/jaw
966:
967: Defer search-ghosts
968:
969: : (search-ghosts) ( adr len -- cfa true | 0 )
970: current-ghosts search-wordlist ;
971:
972: ' (search-ghosts) IS search-ghosts
973:
974: : gsearch ( addr len -- ghost true | 0 )
975: search-ghosts
976: dup IF swap >body swap THEN ;
977:
978: : gfind ( string -- ghost true / string false )
979: \ searches for string in word-list ghosts
980: \ dup count type space
981: dup >r count gsearch
982: dup IF rdrop ELSE r> swap THEN ;
983:
984: : gdiscover ( xt -- ghost true | xt false )
985: >r ghost-list
986: BEGIN @ dup
987: WHILE dup >magic @ <fwd> <>
988: IF dup >link @ r@ =
989: IF rdrop true EXIT THEN
990: THEN
991: REPEAT
992: drop r> false ;
993:
994: : xt>ghost ( xt -- ghost )
995: gdiscover 0= ABORT" CROSS: ghost not found for this xt" ;
996:
997: : Ghost ( "name" -- ghost )
998: >in @ bl word gfind IF nip EXIT THEN
999: drop >in ! Make-Ghost ;
1000:
1001: : >ghostname ( ghost -- adr len )
1002: >ghost-name count ;
1003:
1004: : forward? ( ghost -- flag )
1005: >magic @ <fwd> = ;
1006:
1007: : undefined? ( ghost -- flag )
1008: >magic @ dup <fwd> = swap <skip> = or ;
1009:
1010: : immediate? ( ghost -- flag )
1011: >magic @ <imm> = ;
1012:
1013: Variable TWarnings
1014: TWarnings on
1015: Variable Exists-Warnings
1016: Exists-Warnings on
1017:
1018: : exists-warning ( ghost -- ghost )
1019: TWarnings @ Exists-Warnings @ and
1020: IF dup >ghostname warnhead type ." exists " THEN ;
1021:
1022: \ : HeaderGhost Ghost ;
1023:
1024: Variable reuse-ghosts reuse-ghosts off
1025:
1026: : HeaderGhost ( "name" -- ghost )
1027: >in @
1028: bl word count
1029: \ 2dup type space
1030: current-ghosts search-wordlist
1031: IF >body dup undefined? reuse-ghosts @ or
1032: IF nip EXIT
1033: ELSE exists-warning
1034: THEN
1035: drop >in !
1036: ELSE >in !
1037: THEN
1038: \ we keep the execution semantics of the prviously
1039: \ defined words, this is a workaround
1040: \ for the redefined \ until vocs work
1041: Make-Ghost ;
1042:
1043: : .ghost ( ghost -- ) >ghostname type ;
1044:
1045: \ ' >ghostname ALIAS @name
1046:
1047: : findghost ( "ghostname" -- ghost )
1048: bl word gfind 0= ABORT" CROSS: Ghost don't exists" ;
1049:
1050: : [G'] ( -- ghost : name )
1051: \G ticks a ghost and returns its address
1052: findghost
1053: state @ IF postpone literal THEN ; immediate
1054:
1055: : g>xt ( ghost -- xt )
1056: \G Returns the xt (cfa) of a ghost. Issues a warning if undefined.
1057: dup undefined? ABORT" CROSS: forward " >link @ ;
1058:
1059: : g>body ( ghost -- body )
1060: \G Returns the body-address (pfa) of a ghost.
1061: \G Issues a warning if undefined (a forward-reference).
1062: g>xt X >body ;
1063:
1064: 1 Constant <label>
1065:
1066: Struct
1067: \ bitmask of address type (not used for now)
1068: cell% field addr-type
1069: \ if this address is an xt, this field points to the ghost
1070: cell% field addr-xt-ghost
1071: \ a bit mask that tells as what part of the cell
1072: \ is refenced from an address pointer, used for assembler generation
1073: cell% field addr-refs
1074: End-Struct addr-struct
1075:
1076: : %allocerase ( align size -- addr )
1077: dup >r %alloc dup r> erase ;
1078:
1079: \ returns the addr struct, define it if 0 reference
1080: : define-addr-struct ( addr -- struct-addr )
1081: dup @ ?dup IF nip EXIT THEN
1082: addr-struct %allocerase tuck swap ! ;
1083:
1084: >cross
1085:
1086: \ Predefined ghosts 12dec92py
1087:
1088: Ghost - drop \ need a ghost otherwise "-" would be treated as a number
1089:
1090: Ghost 0= drop
1091: Ghost branch Ghost ?branch 2drop
1092: Ghost unloop Ghost ;S 2drop
1093: Ghost lit Ghost ! 2drop
1094: Ghost noop drop
1095: Ghost over Ghost = Ghost drop 2drop drop
1096: Ghost 2drop drop
1097: Ghost 2dup drop
1098: Ghost call drop
1099: Ghost @ drop
1100: Ghost useraddr drop
1101: Ghost execute drop
1102: Ghost + drop
1103: Ghost decimal drop
1104: Ghost hex drop
1105: Ghost lit@ drop
1106: Ghost lit-perform drop
1107: Ghost lit+ drop
1108: Ghost does-exec drop
1109:
1110: Ghost :docol Ghost :doesjump Ghost :dodoes 2drop drop
1111: Ghost :dovar drop
1112:
1113: \ \ Parameter for target systems 06oct92py
1114:
1115:
1116: \ we define it ans like...
1117: wordlist Constant target-environment
1118:
1119: \ save information of current dictionary to restore with environ>
1120: Variable env-current
1121:
1122: : >ENVIRON get-current env-current ! target-environment set-current ;
1123: : ENVIRON> env-current @ set-current ;
1124:
1125: >TARGET
1126:
1127: : environment? ( addr len -- [ x ] true | false )
1128: \G returns the content of environment variable and true or
1129: \G false if not present
1130: target-environment search-wordlist
1131: IF EXECUTE true ELSE false THEN ;
1132:
1133: : $has? ( addr len -- x | false )
1134: \G returns the content of environment variable
1135: \G or false if not present
1136: T environment? H dup IF drop THEN ;
1137:
1138: : e? ( "name" -- x )
1139: \G returns the content of environment variable.
1140: \G The variable is expected to exist. If not, issue an error.
1141: bl word count T environment? H
1142: 0= ABORT" environment variable not defined!" ;
1143:
1144: : has? ( "name" --- x | false )
1145: \G returns the content of environment variable
1146: \G or false if not present
1147: bl word count T $has? H ;
1148:
1149:
1150: >ENVIRON get-order get-current swap 1+ set-order
1151: true SetValue compiler
1152: true SetValue cross
1153: true SetValue standard-threading
1154: >TARGET previous
1155:
1156: 0
1157: [IFDEF] mach-file drop mach-file count 1 [THEN]
1158: [IFDEF] machine-file drop machine-file 1 [THEN]
1159: [IF] included hex
1160: [ELSE] cr ." No machine description!" ABORT
1161: [THEN]
1162:
1163: >ENVIRON
1164:
1165: T has? ec H
1166: [IF]
1167: false DefaultValue relocate
1168: false DefaultValue file
1169: false DefaultValue OS
1170: false DefaultValue prims
1171: false DefaultValue floating
1172: false DefaultValue glocals
1173: false DefaultValue dcomps
1174: false DefaultValue hash
1175: false DefaultValue xconds
1176: false DefaultValue header
1177: false DefaultValue backtrace
1178: false DefaultValue new-input
1179: false DefaultValue peephole
1180: false DefaultValue primcentric
1181: false DefaultValue abranch
1182: true DefaultValue f83headerstring
1183: true DefaultValue control-rack
1184: [THEN]
1185:
1186: true DefaultValue gforthcross
1187: true DefaultValue interpreter
1188: true DefaultValue ITC
1189: false DefaultValue rom
1190: false DefaultValue flash
1191: true DefaultValue standardthreading
1192:
1193: \ ANSForth environment stuff
1194: 8 DefaultValue ADDRESS-UNIT-BITS
1195: 255 DefaultValue MAX-CHAR
1196: 255 DefaultValue /COUNTED-STRING
1197:
1198: >TARGET
1199: s" relocate" T environment? H
1200: \ JAW why set NIL to this?!
1201: [IF] drop \ SetValue NIL
1202: [ELSE] >ENVIRON X NIL SetValue relocate
1203: [THEN]
1204: >TARGET
1205:
1206: 0 Constant NIL
1207:
1208: >CROSS
1209:
1210: \ \ Create additional parameters 19jan95py
1211:
1212: \ currently cross only works for host machines with address-unit-bits
1213: \ eual to 8 because of s! and sc!
1214: \ but I start to query the environment just to modularize a little bit
1215:
1216: : check-address-unit-bits ( -- )
1217: \ s" ADDRESS-UNIT-BITS" environment?
1218: \ IF 8 <> ELSE true THEN
1219: \ ABORT" ADDRESS-UNIT-BITS unknown or not equal to 8!"
1220:
1221: \ shit, this doesn't work because environment? is only defined for
1222: \ gforth.fi and not kernl???.fi
1223: ;
1224:
1225: check-address-unit-bits
1226: 8 Constant bits/byte \ we define: byte is address-unit
1227:
1228: 1 bits/byte lshift Constant maxbyte
1229: \ this sets byte size for the target machine, (probably right guess) jaw
1230:
1231: T
1232: NIL Constant TNIL
1233: cell Constant tcell
1234: cell<< Constant tcell<<
1235: cell>bit Constant tcell>bit
1236: bits/char Constant tbits/char
1237: bits/char H bits/byte T /
1238: Constant tchar
1239: float Constant tfloat
1240: 1 bits/char lshift Constant tmaxchar
1241: [IFUNDEF] bits/byte
1242: 8 Constant tbits/byte
1243: [ELSE]
1244: bits/byte Constant tbits/byte
1245: [THEN]
1246: H
1247: tbits/char bits/byte / Constant tbyte
1248:
1249: : >signed ( u -- n )
1250: 1 tbits/char tcell * 1- lshift 2dup and
1251: IF negate or ELSE drop THEN ;
1252:
1253: \ Variables 06oct92py
1254:
1255: Variable (tlast)
1256: (tlast) Value tlast TNIL tlast ! \ Last name field
1257: Variable tlastcfa \ Last code field
1258:
1259: \ statistics 10jun97jaw
1260:
1261: Variable headers-named 0 headers-named !
1262: Variable user-vars 0 user-vars !
1263:
1264: : target>bitmask-size ( u1 -- u2 )
1265: 1- tcell>bit rshift 1+ ;
1266:
1267: : allocatetarget ( size -- adr )
1268: dup allocate ABORT" CROSS: No memory for target"
1269: swap over swap erase ;
1270:
1271: \ \ memregion.fs
1272:
1273:
1274: Variable last-defined-region \ pointer to last defined region
1275: Variable region-link \ linked list with all regions
1276: Variable mirrored-link \ linked list for mirrored regions
1277: 0 dup mirrored-link ! region-link !
1278:
1279: : >rname 9 cells + ;
1280: : >rtouch 8 cells + ; \ executed when region is accessed
1281: : >rbm 4 cells + ; \ bitfield per cell witch indicates relocation
1282: : >rmem 5 cells + ;
1283: : >rtype 6 cells + ; \ field per cell witch points to a type struct
1284: : >rrom 7 cells + ; \ a -1 indicates that this region is rom
1285: : >rlink 3 cells + ;
1286: : >rdp 2 cells + ;
1287: : >rlen cell+ ;
1288: : >rstart ;
1289:
1290: : (region) ( addr len region -- )
1291: \G change startaddress and length of an existing region
1292: >r r@ last-defined-region !
1293: r@ >rlen ! dup r@ >rstart ! r> >rdp ! ;
1294:
1295: : uninitialized -1 ABORT" CROSS: Region is uninitialized" ;
1296:
1297: : region ( addr len -- "name" )
1298: \G create a new region
1299: \ check whether predefined region exists
1300: save-input bl word find >r >r restore-input throw r> r> 0=
1301: IF \ make region
1302: drop
1303: save-input create restore-input throw
1304: here last-defined-region !
1305: over ( startaddr ) , ( length ) , ( dp ) ,
1306: region-link linked 0 , 0 , 0 , 0 ,
1307: ['] uninitialized ,
1308: bl word count string,
1309: ELSE \ store new parameters in region
1310: bl word drop
1311: >body (region)
1312: THEN ;
1313:
1314: : borders ( region -- startaddr endaddr )
1315: \G returns lower and upper region border
1316: dup >rstart @ swap >rlen @ over + ;
1317:
1318: : extent ( region -- startaddr len )
1319: \G returns the really used area
1320: dup >rstart @ swap >rdp @ over - ;
1321:
1322: : area ( region -- startaddr totallen )
1323: \G returns the total area
1324: dup >rstart @ swap >rlen @ ;
1325:
1326: : dp@ ( region -- dp )
1327: >rdp @ ;
1328:
1329: : mirrored ( -- )
1330: \G mark last defined region as mirrored
1331: mirrored-link
1332: align linked last-defined-region @ , ;
1333:
1334: : writeprotected
1335: \G mark a region as write protected
1336: -1 last-defined-region @ >rrom ! ;
1337:
1338: : .addr ( u -- )
1339: \G prints a 16 or 32 Bit nice hex value
1340: base @ >r hex
1341: tcell 2 u>
1342: IF s>d <# # # # # [char] . hold # # # # #> type
1343: ELSE s>d <# # # # # # #> type
1344: THEN r> base ! space ;
1345:
1346: : .regions \G display region statistic
1347:
1348: \ we want to list the regions in the right order
1349: \ so first collect all regions on stack
1350: 0 region-link @
1351: BEGIN dup WHILE dup @ REPEAT drop
1352: BEGIN dup
1353: WHILE cr
1354: 0 >rlink - >r
1355: r@ >rname count tuck type
1356: 12 swap - 0 max spaces space
1357: ." Start: " r@ >rstart @ dup .addr space
1358: ." End: " r@ >rlen @ + .addr space
1359: ." DP: " r> >rdp @ .addr
1360: REPEAT drop
1361: s" rom" T $has? H 0= ?EXIT
1362: cr ." Mirrored:"
1363: mirrored-link @
1364: BEGIN dup
1365: WHILE space dup cell+ @ >rname count type @
1366: REPEAT drop cr
1367: ;
1368:
1369: \ -------- predefined regions
1370:
1371: 0 0 region address-space
1372: \ total memory addressed and used by the target system
1373:
1374: 0 0 region user-region
1375: \ data for user variables goes here
1376: \ this has to be defined before dictionary or ram-dictionary
1377:
1378: 0 0 region dictionary
1379: \ rom area for the compiler
1380:
1381: T has? rom H
1382: [IF]
1383: 0 0 region ram-dictionary mirrored
1384: \ ram area for the compiler
1385: [ELSE]
1386: ' dictionary ALIAS ram-dictionary
1387: [THEN]
1388:
1389: 0 0 region return-stack
1390:
1391: 0 0 region data-stack
1392:
1393: 0 0 region tib-region
1394:
1395: ' dictionary ALIAS rom-dictionary
1396:
1397: : setup-region ( region -- )
1398: >r
1399: \ allocate mem
1400: r@ >rlen @ allocatetarget
1401: r@ >rmem !
1402:
1403: r@ >rlen @
1404: target>bitmask-size allocatetarget
1405: r@ >rbm !
1406:
1407: r@ >rlen @
1408: tcell / 1+ cells allocatetarget r@ >rtype !
1409:
1410: ['] noop r@ >rtouch !
1411: rdrop ;
1412:
1413: : setup-target ( -- ) \G initialize target's memory space
1414: s" rom" T $has? H
1415: IF \ check for ram and rom...
1416: \ address-space area nip 0<>
1417: ram-dictionary area nip 0<>
1418: rom-dictionary area nip 0<>
1419: and 0=
1420: ABORT" CROSS: define address-space, rom- , ram-dictionary, with rom-support!"
1421: THEN
1422: address-space area nip
1423: IF
1424: address-space area
1425: ELSE
1426: dictionary area
1427: THEN
1428: nip 0=
1429: ABORT" CROSS: define at least address-space or dictionary!!"
1430:
1431: \ allocate target for each region
1432: region-link
1433: BEGIN @ dup
1434: WHILE dup
1435: 0 >rlink - >r
1436: r@ >rlen @
1437: IF r@ setup-region
1438: THEN rdrop
1439: REPEAT drop ;
1440:
1441: \ MakeKernel 22feb99jaw
1442:
1443: : makekernel ( start targetsize -- )
1444: \G convenience word to setup the memory of the target
1445: \G used by main.fs of the c-engine based systems
1446: dictionary (region) setup-target ;
1447:
1448: >MINIMAL
1449: : makekernel makekernel ;
1450: >CROSS
1451:
1452: \ \ switched tdp for rom support 03jun97jaw
1453:
1454: \ second value is here to store some maximal value for statistics
1455: \ tempdp is also embedded here but has nothing to do with rom support
1456: \ (needs switched dp)
1457:
1458: variable tempdp 0 , \ temporary dp for resolving
1459: variable tempdp-save
1460:
1461: 0 [IF]
1462: variable romdp 0 , \ Dictionary-Pointer for ramarea
1463: variable ramdp 0 , \ Dictionary-Pointer for romarea
1464:
1465: \
1466: variable sramdp \ start of ram-area for forth
1467: variable sromdp \ start of rom-area for forth
1468:
1469: [THEN]
1470:
1471: 0 Value current-region
1472: 0 Value tdp
1473: Variable fixed \ flag: true: no automatic switching
1474: \ false: switching is done automatically
1475:
1476: \ Switch-Policy:
1477: \
1478: \ a header is always compiled into rom
1479: \ after a created word (create and variable) compilation goes to ram
1480: \
1481: \ Be careful: If you want to make the data behind create into rom
1482: \ you have to put >rom before create!
1483:
1484: variable constflag constflag off
1485:
1486: : activate ( region -- )
1487: \G next code goes to this region
1488: dup to current-region >rdp to tdp ;
1489:
1490: : (switchram)
1491: fixed @ ?EXIT s" rom" T $has? H 0= ?EXIT
1492: ram-dictionary activate ;
1493:
1494: : switchram
1495: constflag @
1496: IF constflag off ELSE (switchram) THEN ;
1497:
1498: : switchrom
1499: fixed @ ?EXIT rom-dictionary activate ;
1500:
1501: : >tempdp ( addr -- )
1502: tdp tempdp-save ! tempdp to tdp tdp ! ;
1503: : tempdp> ( -- )
1504: tempdp-save @ to tdp ;
1505:
1506: : >ram fixed off (switchram) fixed on ;
1507: : >rom fixed off switchrom fixed on ;
1508: : >auto fixed off switchrom ;
1509:
1510:
1511:
1512: \ : romstart dup sromdp ! romdp ! ;
1513: \ : ramstart dup sramdp ! ramdp ! ;
1514:
1515: \ default compilation goes to rom
1516: \ when romable support is off, only the rom switch is used (!!)
1517: >auto
1518:
1519: : there tdp @ ;
1520:
1521: >TARGET
1522:
1523: \ \ Target Memory Handling
1524:
1525: \ Byte ordering and cell size 06oct92py
1526:
1527: : cell+ tcell + ;
1528: : cells tcell<< lshift ;
1529: : chars tchar * ;
1530: : char+ tchar + ;
1531: : floats tfloat * ;
1532:
1533: >CROSS
1534: : cell/ tcell<< rshift ;
1535: >TARGET
1536: 20 CONSTANT bl
1537: \ TNIL Constant NIL
1538:
1539: >CROSS
1540:
1541: bigendian
1542: [IF]
1543: : DS! ( d addr -- ) tcell bounds swap 1-
1544: DO maxbyte ud/mod rot I c! -1 +LOOP 2drop ;
1545: : DS@ ( addr -- d ) >r 0 0 r> tcell bounds
1546: DO maxbyte * swap maxbyte um* rot + swap I c@ + swap LOOP ;
1547: : Sc! ( n addr -- ) >r s>d r> tchar bounds swap 1-
1548: DO maxbyte ud/mod rot I c! -1 +LOOP 2drop ;
1549: : Sc@ ( addr -- n ) >r 0 0 r> tchar bounds
1550: DO maxbyte * swap maxbyte um* rot + swap I c@ + swap LOOP d>s ;
1551: [ELSE]
1552: : DS! ( d addr -- ) tcell bounds
1553: DO maxbyte ud/mod rot I c! LOOP 2drop ;
1554: : DS@ ( addr -- n ) >r 0 0 r> tcell bounds swap 1-
1555: DO maxbyte * swap maxbyte um* rot + swap I c@ + swap -1 +LOOP ;
1556: : Sc! ( n addr -- ) >r s>d r> tchar bounds
1557: DO maxbyte ud/mod rot I c! LOOP 2drop ;
1558: : Sc@ ( addr -- n ) >r 0 0 r> tchar bounds swap 1-
1559: DO maxbyte * swap maxbyte um* rot + swap I c@ + swap -1 +LOOP d>s ;
1560: [THEN]
1561:
1562: : S! ( n addr -- ) >r s>d r> DS! ;
1563: : S@ ( addr -- n ) DS@ d>s ;
1564:
1565: : taddr>region ( taddr -- region | 0 )
1566: \G finds for a target-address the correct region
1567: \G returns 0 if taddr is not in range of a target memory region
1568: region-link
1569: BEGIN @ dup
1570: WHILE dup >r
1571: 0 >rlink - >r
1572: r@ >rlen @
1573: IF dup r@ borders within
1574: IF r> r> drop nip
1575: dup >rtouch @ EXECUTE EXIT
1576: THEN
1577: THEN
1578: r> drop
1579: r>
1580: REPEAT
1581: 2drop 0 ;
1582:
1583: : taddr>region-abort ( taddr -- region | 0 )
1584: \G Same as taddr>region but aborts if taddr is not
1585: \G a valid address in the target address space
1586: dup taddr>region dup 0=
1587: IF drop cr ." Wrong address: " .addr
1588: -1 ABORT" Address out of range!"
1589: THEN nip ;
1590:
1591: : (>regionimage) ( taddr -- 'taddr )
1592: dup
1593: \ find region we want to address
1594: taddr>region-abort
1595: >r
1596: \ calculate offset in region
1597: r@ >rstart @ -
1598: \ add regions real address in our memory
1599: r> >rmem @ + ;
1600:
1601: : (>regionramimage) ( taddr -- 'taddr )
1602: \G same as (>regionimage) but aborts if the region is rom
1603: dup
1604: \ find region we want to address
1605: taddr>region-abort
1606: >r
1607: r@ >rrom @ ABORT" CROSS: region is write-protected!"
1608: \ calculate offset in region
1609: r@ >rstart @ -
1610: \ add regions real address in our memory
1611: r> >rmem @ + ;
1612:
1613: : (>regionbm) ( taddr -- 'taddr bitmaskbaseaddr )
1614: dup
1615: \ find region we want to address
1616: taddr>region-abort
1617: >r
1618: \ calculate offset in region
1619: r@ >rstart @ -
1620: \ add regions real address in our memory
1621: r> >rbm @ ;
1622:
1623: : (>regiontype) ( taddr -- 'taddr )
1624: dup
1625: \ find region we want to address
1626: taddr>region-abort
1627: >r
1628: \ calculate offset in region
1629: r@ >rstart @ - tcell / cells
1630: \ add regions real address in our memory
1631: r> >rtype @ + ;
1632:
1633: \ Bit string manipulation 06oct92py
1634: \ 9may93jaw
1635: CREATE Bittable 80 c, 40 c, 20 c, 10 c, 8 c, 4 c, 2 c, 1 c,
1636: : bits ( n -- n ) chars Bittable + c@ ;
1637:
1638: : >bit ( addr n -- c-addr mask ) 8 /mod rot + swap bits ;
1639: : +bit ( addr n -- ) >bit over c@ or swap c! ;
1640: : -bit ( addr n -- ) >bit invert over c@ and swap c! ;
1641:
1642: : @relbit ( taddr -- f ) (>regionbm) swap cell/ >bit swap c@ and ;
1643:
1644: : (relon) ( taddr -- )
1645: [ [IFDEF] fd-relocation-table ]
1646: s" +" fd-relocation-table write-file throw
1647: dup s>d <# #s #> fd-relocation-table write-line throw
1648: [ [THEN] ]
1649: (>regionbm) swap cell/ +bit ;
1650:
1651: : (reloff) ( taddr -- )
1652: [ [IFDEF] fd-relocation-table ]
1653: s" -" fd-relocation-table write-file throw
1654: dup s>d <# #s #> fd-relocation-table write-line throw
1655: [ [THEN] ]
1656: (>regionbm) swap cell/ -bit ;
1657:
1658: DEFER >image
1659: DEFER >ramimage
1660: DEFER relon
1661: DEFER reloff
1662: DEFER correcter
1663:
1664: T has? relocate H
1665: [IF]
1666: ' (relon) IS relon
1667: ' (reloff) IS reloff
1668: ' (>regionimage) IS >image
1669: ' (>regionimage) IS >ramimage
1670: [ELSE]
1671: ' drop IS relon
1672: ' drop IS reloff
1673: ' (>regionimage) IS >image
1674: ' (>regionimage) IS >ramimage
1675: [THEN]
1676:
1677: : enforce-writeprotection ( -- )
1678: ['] (>regionramimage) IS >ramimage ;
1679:
1680: : relax-writeprotection ( -- )
1681: ['] (>regionimage) IS >ramimage ;
1682:
1683: : writeprotection-relaxed? ( -- )
1684: ['] >ramimage >body @ ['] (>regionimage) = ;
1685:
1686: \ Target memory access 06oct92py
1687:
1688: : align+ ( taddr -- rest )
1689: tcell tuck 1- and - [ tcell 1- ] Literal and ;
1690: : cfalign+ ( taddr -- rest )
1691: \ see kernel.fs:cfaligned
1692: /maxalign tuck 1- and - [ /maxalign 1- ] Literal and ;
1693:
1694: >TARGET
1695: : aligned ( taddr -- ta-addr ) dup align+ + ;
1696: \ assumes cell alignment granularity (as GNU C)
1697:
1698: : cfaligned ( taddr1 -- taddr2 )
1699: \ see kernel.fs
1700: dup cfalign+ + ;
1701:
1702: : @ ( taddr -- w ) >image S@ ;
1703: : ! ( w taddr -- ) >ramimage S! ;
1704: : c@ ( taddr -- char ) >image Sc@ ;
1705: : c! ( char taddr -- ) >ramimage Sc! ;
1706: : 2@ ( taddr -- x1 x2 ) T dup cell+ @ swap @ H ;
1707: : 2! ( x1 x2 taddr -- ) T tuck ! cell+ ! H ;
1708:
1709: \ Target compilation primitives 06oct92py
1710: \ included A! 16may93jaw
1711:
1712: : here ( -- there ) there ;
1713: : allot ( n -- ) tdp +! ;
1714: : , ( w -- ) T here H tcell T allot ! H ;
1715: : c, ( char -- ) T here H tchar T allot c! H ;
1716: : align ( -- ) T here H align+ 0 ?DO bl T c, H tchar +LOOP ;
1717: : cfalign ( -- )
1718: T here H cfalign+ 0 ?DO bl T c, H tchar +LOOP ;
1719:
1720: : >address dup 0>= IF tbyte / THEN ; \ ?? jaw
1721: : A! swap >address swap dup relon T ! H ;
1722: : A, ( w -- ) >address T here H relon T , H ;
1723:
1724: \ high-level ghosts
1725:
1726: >CROSS
1727:
1728: Ghost (do) Ghost (?do) 2drop
1729: Ghost (for) drop
1730: Ghost (loop) Ghost (+loop) Ghost (-loop) 2drop drop
1731: Ghost (next) drop
1732: Ghost !does drop
1733: Ghost compile, drop
1734: Ghost (.") Ghost (S") Ghost (ABORT") 2drop drop
1735: Ghost (C") Ghost c(abort") Ghost type 2drop drop
1736: Ghost ' drop
1737:
1738: \ user ghosts
1739:
1740: Ghost state drop
1741:
1742: \ \ -------------------- Host/Target copy etc. 29aug01jaw
1743:
1744:
1745: >CROSS
1746:
1747: : TD! >image DS! ;
1748: : TD@ >image DS@ ;
1749:
1750: : th-count ( taddr -- host-addr len )
1751: \G returns host address of target string
1752: assert1( tbyte 1 = )
1753: dup X c@ swap X char+ >image swap ;
1754:
1755: : ht-move ( haddr taddr len -- )
1756: \G moves data from host-addr to destination in target-addr
1757: \G character by character
1758: swap -rot bounds ?DO I c@ over X c! X char+ LOOP drop ;
1759:
1760: 2Variable last-string
1761: X has? rom [IF] $60 [ELSE] $00 [THEN] Constant header-masks
1762:
1763: : ht-header, ( addr count -- )
1764: dup there swap last-string 2!
1765: dup header-masks or T c, H bounds ?DO I c@ T c, H LOOP ;
1766: : ht-string, ( addr count -- )
1767: dup there swap last-string 2!
1768: dup T c, H bounds ?DO I c@ T c, H LOOP ;
1769: : ht-mem, ( addr count )
1770: bounds ?DO I c@ T c, H LOOP ;
1771:
1772: >TARGET
1773:
1774: : count dup X c@ swap X char+ swap ;
1775:
1776: : on >r -1 -1 r> TD! ;
1777: : off T 0 swap ! H ;
1778:
1779: : tcmove ( source dest len -- )
1780: \G cmove in target memory
1781: tchar * bounds
1782: ?DO dup T c@ H I T c! H 1+
1783: tchar +LOOP drop ;
1784:
1785: : tcallot ( char size -- )
1786: 0 ?DO dup T c, H tchar +LOOP drop ;
1787:
1788: : td, ( d -- )
1789: \G Store a host value as one cell into the target
1790: there tcell X allot TD! ;
1791:
1792: \ \ Load Assembler
1793:
1794: >TARGET
1795: H also Forth definitions
1796:
1797: \ FIXME: should we include the assembler really in the forth
1798: \ dictionary?!?!?!? This conflicts with the existing assembler
1799: \ of the host forth system!!
1800: [IFDEF] asm-include asm-include [THEN] hex
1801:
1802: previous
1803:
1804:
1805: >CROSS
1806:
1807: : (cc) T a, H ; ' (cc) plugin-of colon,
1808: : (prim) T a, H ; ' (prim) plugin-of prim,
1809:
1810: : (cr) >tempdp colon, tempdp> ; ' (cr) plugin-of colon-resolve
1811: : (ar) T ! H ; ' (ar) plugin-of addr-resolve
1812: : (dr) ( ghost res-pnt target-addr addr )
1813: >tempdp drop over
1814: dup >magic @ <do:> =
1815: IF doer,
1816: ELSE dodoes,
1817: THEN
1818: tempdp> ; ' (dr) plugin-of doer-resolve
1819:
1820: : (cm) ( -- addr )
1821: there -1 colon, ; ' (cm) plugin-of colonmark,
1822:
1823: >TARGET
1824: : compile, ( xt -- )
1825: dup xt>ghost >comp @ EXECUTE ;
1826: >CROSS
1827:
1828: \ resolve structure
1829:
1830: : >next ; \ link to next field
1831: : >tag cell+ ; \ indecates type of reference: 0: call, 1: address, 2: doer
1832: : >taddr cell+ cell+ ;
1833: : >ghost 3 cells + ;
1834: : >file 4 cells + ;
1835: : >line 5 cells + ;
1836:
1837: : (refered) ( ghost addr tag -- )
1838: \G creates a reference to ghost at address taddr
1839: >space
1840: rot >link linked
1841: ( taddr tag ) ,
1842: ( taddr ) ,
1843: last-header-ghost @ ,
1844: loadfile ,
1845: sourceline# ,
1846: space>
1847: ;
1848:
1849: : refered ( ghost tag -- )
1850: \G creates a resolve structure
1851: T here aligned H swap (refered)
1852: ;
1853:
1854: : killref ( addr ghost -- )
1855: \G kills a forward reference to ghost at position addr
1856: \G this is used to eleminate a :dovar refence after making a DOES>
1857: dup >magic @ <fwd> <> IF 2drop EXIT THEN
1858: swap >r >link
1859: BEGIN dup @ dup ( addr last this )
1860: WHILE dup >taddr @ r@ =
1861: IF @ over !
1862: ELSE nip THEN
1863: REPEAT rdrop 2drop
1864: ;
1865:
1866: Defer resolve-warning
1867:
1868: : reswarn-test ( ghost res-struct -- ghost res-struct )
1869: over cr ." Resolving " .ghost dup ." in " >ghost @ .ghost ;
1870:
1871: : reswarn-forward ( ghost res-struct -- ghost res-struct )
1872: over warnhead .ghost dup ." is referenced in "
1873: >ghost @ .ghost ;
1874:
1875: \ ' reswarn-test IS resolve-warning
1876:
1877: \ resolve 14oct92py
1878:
1879: : resolve-loop ( ghost resolve-list tcfa -- )
1880: >r
1881: BEGIN dup WHILE
1882: \ dup >tag @ 2 = IF reswarn-forward THEN
1883: resolve-warning
1884: r@ over >taddr @
1885: 2 pick >tag @
1886: CASE 0 OF colon-resolve ENDOF
1887: 1 OF addr-resolve ENDOF
1888: 2 OF doer-resolve ENDOF
1889: ENDCASE
1890: @ \ next list element
1891: REPEAT 2drop rdrop
1892: ;
1893:
1894: \ : resolve-loop ( ghost tcfa -- ghost tcfa )
1895: \ >r dup >link @
1896: \ BEGIN dup WHILE dup T @ H r@ rot T ! H REPEAT drop r> ;
1897:
1898: \ exists 9may93jaw
1899:
1900: : exists ( ghost tcfa -- )
1901: \G print warning and set new target link in ghost
1902: swap exists-warning
1903: >link ! ;
1904:
1905: : colon-resolved ( ghost -- )
1906: \ compiles a call to a colon definition,
1907: \ compile action for >comp field
1908: >link @ colon, ;
1909:
1910: : prim-resolved ( ghost -- )
1911: \ compiles a call to a primitive
1912: >link @ prim, ;
1913:
1914: : (is-forward) ( ghost -- )
1915: colonmark, 0 (refered) ; \ compile space for call
1916: ' (is-forward) IS is-forward
1917:
1918: 0 Value resolved
1919:
1920: : resolve-forward-references ( ghost resolve-list -- )
1921: \ loop through forward referencies
1922: comp-state @ >r Resolving comp-state !
1923: over >link @ resolve-loop
1924: r> comp-state !
1925:
1926: ['] noop IS resolve-warning ;
1927:
1928:
1929: : (resolve) ( ghost tcfa -- ghost resolve-list )
1930: \ check for a valid address, it is a primitive reference
1931: \ otherwise
1932: dup taddr>region 0<> IF
1933: \ define this address in the region address type table
1934: 2dup (>regiontype) define-addr-struct addr-xt-ghost
1935: \ we define new address only if empty
1936: \ this is for not to take over the alias ghost
1937: \ (different ghost, but identical xt)
1938: \ but the very first that really defines it
1939: dup @ 0= IF ! ELSE 2drop THEN
1940: THEN
1941: swap >r
1942: r@ to resolved
1943:
1944: \ r@ >comp @ ['] is-forward =
1945: \ ABORT" >comp action not set on a resolved ghost"
1946:
1947: \ copmile action defaults to colon-resolved
1948: \ if this is not right something must be set before
1949: \ calling resolve
1950: r@ >comp @ ['] is-forward = IF
1951: ['] colon-resolved r@ >comp !
1952: THEN
1953: r@ >link @ swap \ ( list tcfa R: ghost )
1954: \ mark ghost as resolved
1955: r@ >link ! <res> r@ >magic !
1956: r> swap ;
1957:
1958: : resolve ( ghost tcfa -- )
1959: \G resolve referencies to ghost with tcfa
1960: \ is ghost resolved?, second resolve means another
1961: \ definition with the same name
1962: over undefined? 0= IF exists EXIT THEN
1963: (resolve)
1964: ( ghost resolve-list )
1965: resolve-forward-references ;
1966:
1967: : resolve-noforwards ( ghost tcfa -- )
1968: \G Same as resolve but complain if there are any
1969: \G forward references on this ghost
1970: \ is ghost resolved?, second resolve means another
1971: \ definition with the same name
1972: over undefined? 0= IF exists EXIT THEN
1973: (resolve)
1974: IF cr ." No forward references allowed on: " .ghost cr
1975: -1 ABORT" Illegal forward reference"
1976: THEN
1977: drop ;
1978:
1979: \ gexecute ghost, 01nov92py
1980:
1981: : (gexecute) ( ghost -- )
1982: dup >comp @ EXECUTE ;
1983:
1984: : gexecute ( ghost -- )
1985: dup >magic @ <imm> = ABORT" CROSS: gexecute on immediate word"
1986: (gexecute) ;
1987:
1988: : addr, ( ghost -- )
1989: dup forward? IF 1 refered 0 T a, H ELSE >link @ T a, H THEN ;
1990:
1991: \ .unresolved 11may93jaw
1992:
1993: variable ResolveFlag
1994:
1995: \ ?touched 11may93jaw
1996:
1997: : ?touched ( ghost -- flag ) dup forward? swap >link @
1998: 0 <> and ;
1999:
2000: : .forwarddefs ( ghost -- )
2001: ." appeared in:"
2002: >link
2003: BEGIN @ dup
2004: WHILE cr 5 spaces
2005: dup >ghost @ .ghost
2006: ." file " dup >file @ ?dup IF count type ELSE ." CON" THEN
2007: ." line " dup >line @ .dec
2008: REPEAT
2009: drop ;
2010:
2011: : ?resolved ( ghost -- )
2012: dup ?touched
2013: IF ResolveFlag on
2014: dup cr .ghost .forwarddefs
2015: ELSE drop
2016: THEN ;
2017:
2018: : .unresolved ( -- )
2019: ResolveFlag off cr ." Unresolved: "
2020: ghost-list
2021: BEGIN @ dup
2022: WHILE dup ?resolved
2023: REPEAT drop ResolveFlag @
2024: IF
2025: -1 abort" Unresolved words!"
2026: ELSE
2027: ." Nothing!"
2028: THEN
2029: cr ;
2030:
2031: : .stats
2032: base @ >r decimal
2033: cr ." named Headers: " headers-named @ .
2034: r> base ! ;
2035:
2036: >MINIMAL
2037:
2038: : .unresolved .unresolved ;
2039:
2040: >CROSS
2041: \ Header states 12dec92py
2042:
2043: \ : flag! ( 8b -- ) tlast @ dup >r T c@ xor r> c! H ;
2044: X has? f83headerstring bigendian or [IF] 0 [ELSE] tcell 1- [THEN] Constant flag+
2045: : flag! ( w -- ) tlast @ flag+ + dup >r T c@ xor r> c! H ;
2046:
2047: VARIABLE ^imm
2048:
2049: \ !! should be target wordsize specific
2050: $80 constant alias-mask
2051: $40 constant immediate-mask
2052: $20 constant restrict-mask
2053:
2054: >TARGET
2055: : immediate immediate-mask flag!
2056: ^imm @ @ dup <imm> = IF drop EXIT THEN
2057: <res> <> ABORT" CROSS: Cannot immediate a unresolved word"
2058: <imm> ^imm @ ! ;
2059: : restrict restrict-mask flag! ;
2060:
2061: : isdoer
2062: \G define a forth word as doer, this makes obviously only sence on
2063: \G forth processors such as the PSC1000
2064: <do:> last-header-ghost @ >magic ! ;
2065: >CROSS
2066:
2067: \ Target Header Creation 01nov92py
2068:
2069: : ht-lstring, ( addr count -- )
2070: dup T , H bounds ?DO I c@ T c, H LOOP ;
2071:
2072: >TARGET
2073: X has? f83headerstring [IF]
2074: : name, ( "name" -- ) bl word count ht-header, X cfalign ;
2075: [ELSE]
2076: : name, ( "name" -- ) bl word count ht-lstring, X cfalign ;
2077: [THEN]
2078: : view, ( -- ) ( dummy ) ;
2079: >CROSS
2080:
2081: \ Target Document Creation (goes to crossdoc.fd) 05jul95py
2082:
2083: s" ./doc/crossdoc.fd" r/w create-file throw value doc-file-id
2084: \ contains the file-id of the documentation file
2085:
2086: : T-\G ( -- )
2087: source >in @ /string doc-file-id write-line throw
2088: postpone \ ;
2089:
2090: Variable to-doc to-doc on
2091:
2092: : cross-doc-entry ( -- )
2093: to-doc @ tlast @ 0<> and \ not an anonymous (i.e. noname) header
2094: IF
2095: s" " doc-file-id write-line throw
2096: s" make-doc " doc-file-id write-file throw
2097:
2098: Last-Header-Ghost @ >ghostname doc-file-id write-file throw
2099: >in @
2100: [char] ( parse 2drop
2101: [char] ) parse doc-file-id write-file throw
2102: s" )" doc-file-id write-file throw
2103: [char] \ parse 2drop
2104: T-\G
2105: >in !
2106: THEN ;
2107:
2108: \ Target TAGS creation
2109:
2110: s" kernel.TAGS" r/w create-file throw value tag-file-id
2111: s" kernel.tags" r/w create-file throw value vi-tag-file-id
2112: \ contains the file-id of the tags file
2113:
2114: Create tag-beg 1 c, 7F c,
2115: Create tag-end 1 c, 01 c,
2116: Create tag-bof 1 c, 0C c,
2117: Create tag-tab 1 c, 09 c,
2118:
2119: 2variable last-loadfilename 0 0 last-loadfilename 2!
2120:
2121: : put-load-file-name ( -- )
2122: sourcefilename last-loadfilename 2@ d<>
2123: IF
2124: tag-bof count tag-file-id write-line throw
2125: sourcefilename 2dup
2126: tag-file-id write-file throw
2127: last-loadfilename 2!
2128: s" ,0" tag-file-id write-line throw
2129: THEN ;
2130:
2131: : cross-gnu-tag-entry ( -- )
2132: tlast @ 0<> \ not an anonymous (i.e. noname) header
2133: IF
2134: put-load-file-name
2135: source >in @ min tag-file-id write-file throw
2136: tag-beg count tag-file-id write-file throw
2137: Last-Header-Ghost @ >ghostname tag-file-id write-file throw
2138: tag-end count tag-file-id write-file throw
2139: base @ decimal sourceline# 0 <# #s #> tag-file-id write-file throw
2140: \ >in @ 0 <# #s [char] , hold #> tag-file-id write-line throw
2141: s" ,0" tag-file-id write-line throw
2142: base !
2143: THEN ;
2144:
2145: : cross-vi-tag-entry ( -- )
2146: tlast @ 0<> \ not an anonymous (i.e. noname) header
2147: IF
2148: sourcefilename vi-tag-file-id write-file throw
2149: tag-tab count vi-tag-file-id write-file throw
2150: Last-Header-Ghost @ >ghostname vi-tag-file-id write-file throw
2151: tag-tab count vi-tag-file-id write-file throw
2152: s" /^" vi-tag-file-id write-file throw
2153: source vi-tag-file-id write-file throw
2154: s" $/" vi-tag-file-id write-line throw
2155: THEN ;
2156:
2157: : cross-tag-entry ( -- )
2158: cross-gnu-tag-entry
2159: cross-vi-tag-entry ;
2160:
2161: \ Check for words
2162:
2163: Defer skip? ' false IS skip?
2164:
2165: : skipdef ( "name" -- )
2166: \G skip definition of an undefined word in undef-words and
2167: \G all-words mode
2168: Ghost dup forward?
2169: IF >magic <skip> swap !
2170: ELSE drop THEN ;
2171:
2172: : tdefined? ( "name" -- flag )
2173: Ghost undefined? 0= ;
2174:
2175: : defined2? ( "name" -- flag )
2176: \G return true for anything else than forward, even for <skip>
2177: \G that's what we want
2178: Ghost forward? 0= ;
2179:
2180: : forced? ( "name" -- flag )
2181: \G return ture if it is a foreced skip with defskip
2182: Ghost >magic @ <skip> = ;
2183:
2184: : needed? ( -- flag ) \ name
2185: \G returns a false flag when
2186: \G a word is not defined
2187: \G a forward reference exists
2188: \G so the definition is not skipped!
2189: bl word gfind
2190: IF dup undefined?
2191: nip
2192: 0=
2193: ELSE drop true THEN ;
2194:
2195: : doer? ( "name" -- 0 | addr ) \ name
2196: Ghost dup >magic @ <do:> =
2197: IF >link @ ELSE drop 0 THEN ;
2198:
2199: : skip-defs ( -- )
2200: BEGIN refill WHILE source -trailing nip 0= UNTIL THEN ;
2201:
2202: \ Target header creation
2203:
2204: Variable NoHeaderFlag
2205: NoHeaderFlag off
2206:
2207: : 0.r ( n1 n2 -- )
2208: base @ >r hex
2209: 0 swap <# 0 ?DO # LOOP #> type
2210: r> base ! ;
2211:
2212: : .sym ( adr len -- )
2213: \G escapes / and \ to produce sed output
2214: bounds
2215: DO I c@ dup
2216: CASE [char] / OF drop ." \/" ENDOF
2217: [char] \ OF drop ." \\" ENDOF
2218: dup OF emit ENDOF
2219: ENDCASE
2220: LOOP ;
2221:
2222: Defer setup-execution-semantics ' noop IS setup-execution-semantics
2223: 0 Value lastghost
2224:
2225: : (THeader ( "name" -- ghost )
2226: \ >in @ bl word count type 2 spaces >in !
2227: \ wordheaders will always be compiled to rom
2228: switchrom
2229: \ build header in target
2230: NoHeaderFlag @
2231: IF NoHeaderFlag off
2232: ELSE
2233: T align H view,
2234: tlast @ dup 0> IF tcell - THEN T A, H there tlast !
2235: 1 headers-named +! \ Statistic
2236: >in @ T name, H >in !
2237: THEN
2238: T cfalign here H tlastcfa !
2239: \ Old Symbol table sed-script
2240: \ >in @ cr ." sym:s/CFA=" there 4 0.r ." /" bl word count .sym ." /g" cr >in !
2241: HeaderGhost
2242: \ output symbol table to extra file
2243: dup >ghostname there symentry
2244: dup Last-Header-Ghost ! dup to lastghost
2245: dup >magic ^imm ! \ a pointer for immediate
2246: alias-mask flag!
2247: cross-doc-entry cross-tag-entry
2248: setup-execution-semantics
2249: ;
2250:
2251: \ this is the resolver information from ":"
2252: \ resolving is done by ";"
2253: Variable ;Resolve 1 cells allot
2254:
2255: : hereresolve ( ghost -- )
2256: there resolve 0 ;Resolve ! ;
2257:
2258: : Theader ( "name" -- ghost )
2259: (THeader dup hereresolve ;
2260:
2261: Variable aprim-nr -20 aprim-nr !
2262:
2263: : copy-execution-semantics ( ghost-from ghost-dest -- )
2264: >r
2265: dup >exec @ r@ >exec !
2266: dup >comp @ r@ >comp !
2267: dup >exec2 @ r@ >exec2 !
2268: dup >exec-compile @ r@ >exec-compile !
2269: dup >ghost-xt @ r@ >ghost-xt !
2270: dup >created @ r@ >created !
2271: rdrop drop ;
2272:
2273: >TARGET
2274:
2275: : Alias ( cfa -- ) \ name
2276: >in @ skip? IF 2drop EXIT THEN >in !
2277: (THeader ( S xt ghost )
2278: 2dup swap xt>ghost swap copy-execution-semantics
2279: over resolve T A, H alias-mask flag! ;
2280:
2281: Variable last-prim-ghost
2282: 0 last-prim-ghost !
2283:
2284: : asmprimname, ( ghost -- : name )
2285: dup last-prim-ghost !
2286: >r
2287: here bl word count string, r@ >asm-name !
2288: aprim-nr @ r> >asm-dummyaddr ! ;
2289:
2290: Defer setup-prim-semantics
2291:
2292: : mapprim ( "forthname" "asmlabel" -- )
2293: THeader -1 aprim-nr +! aprim-nr @ T A, H
2294: asmprimname,
2295: setup-prim-semantics ;
2296:
2297: : mapprim: ( "forthname" "asmlabel" -- )
2298: -1 aprim-nr +! aprim-nr @
2299: Ghost tuck swap resolve-noforwards <do:> swap tuck >magic !
2300: asmprimname, ;
2301:
2302: : Doer: ( cfa -- ) \ name
2303: >in @ skip? IF 2drop EXIT THEN >in !
2304: dup 0< s" prims" T $has? H 0= and
2305: IF
2306: .sourcepos ." needs doer: " >in @ bl word count type >in ! cr
2307: THEN
2308: Ghost
2309: tuck swap resolve-noforwards <do:> swap >magic ! ;
2310:
2311: Variable prim#
2312: : first-primitive ( n -- ) prim# ! ;
2313: : group 0 word drop prim# @ 1- -$200 and prim# ! ;
2314: : groupadd ( n -- ) drop ;
2315: : Primitive ( -- ) \ name
2316: >in @ skip? IF drop EXIT THEN >in !
2317: s" prims" T $has? H 0=
2318: IF
2319: .sourcepos ." needs prim: " >in @ bl word count type >in ! cr
2320: THEN
2321: prim# @ (THeader ( S xt ghost )
2322: ['] prim-resolved over >comp !
2323: dup >ghost-flags <primitive> set-flag
2324: s" EC" T $has? H 0=
2325: IF
2326: over resolve-noforwards T A, H
2327: alias-mask flag!
2328: ELSE
2329: T here H resolve-noforwards T A, H
2330: THEN
2331: -1 prim# +! ;
2332: >CROSS
2333:
2334: \ Conditionals and Comments 11may93jaw
2335:
2336: \G saves the existing cond action, this is used for redefining in
2337: \G instant
2338: Variable cond-xt-old
2339:
2340: : cond-target ( -- )
2341: \G Compiles semantic of redefined cond into new one
2342: cond-xt-old @ compile, ; immediate restrict
2343:
2344: : ;Cond
2345: postpone ;
2346: swap ! ; immediate
2347:
2348: : Cond: ( "name" -- )
2349: \g defines a conditional or another word that must
2350: \g be executed directly while compiling
2351: \g these words have no interpretative semantics by default
2352: Ghost
2353: >exec-compile
2354: dup @ cond-xt-old !
2355: :NONAME ;
2356:
2357:
2358: : Comment ( -- )
2359: >in @ Ghost swap >in ! ' swap
2360: 2dup >exec-compile ! >exec ! ;
2361:
2362: Comment ( Comment \
2363:
2364: \ compile 10may93jaw
2365:
2366: : compile ( "name" -- ) \ name
2367: findghost
2368: dup >exec-compile @ ?dup
2369: IF nip compile,
2370: ELSE postpone literal postpone gexecute THEN ; immediate restrict
2371:
2372: >TARGET
2373:
2374: : ' ( -- xt )
2375: \G returns the target-cfa of a ghost
2376: bl word gfind 0= ABORT" CROSS: Ghost don't exists"
2377: g>xt ;
2378:
2379: \ FIXME: this works for the current use cases, but is not
2380: \ in all cases correct ;-)
2381: : comp' X ' 0 ;
2382:
2383: Cond: ['] T ' H alit, ;Cond
2384:
2385: >CROSS
2386:
2387: : [T']
2388: \ returns the target-cfa of a ghost, or compiles it as literal
2389: postpone [G']
2390: state @ IF postpone g>xt ELSE g>xt THEN ; immediate
2391:
2392: \ \ threading modell 13dec92py
2393: \ modularized 14jun97jaw
2394:
2395: T 2 cells H Value xt>body
2396:
2397: : (>body) ( cfa -- pfa )
2398: xt>body + ; ' (>body) plugin-of t>body
2399:
2400: : fillcfa ( usedcells -- )
2401: T cells H xt>body swap -
2402: assert1( dup 0 >= )
2403: 0 ?DO 0 X c, tchar +LOOP ;
2404:
2405: : (doer,) ( ghost -- )
2406: addr, 1 fillcfa ; ' (doer,) plugin-of doer,
2407:
2408: : (docol,) ( -- ) [G'] :docol (doer,) ; ' (docol,) plugin-of docol,
2409:
2410: ' NOOP plugin-of ca>native
2411:
2412: : (doprim,) ( -- )
2413: there xt>body + ca>native T a, H 1 fillcfa ; ' (doprim,) plugin-of doprim,
2414:
2415: : (doeshandler,) ( -- )
2416: T H ; ' (doeshandler,) plugin-of doeshandler,
2417:
2418: : (dodoes,) ( does-action-ghost -- )
2419: ]comp [G'] :dodoes addr, comp[
2420: addr,
2421: 2 fillcfa ; ' (dodoes,) plugin-of dodoes,
2422:
2423: : (dlit,) ( n -- ) compile lit td, ; ' (dlit,) plugin-of dlit,
2424:
2425: : (lit,) ( n -- ) s>d dlit, ; ' (lit,) plugin-of lit,
2426:
2427: \ if we dont produce relocatable code alit, defaults to lit, jaw
2428: \ this is just for convenience, so we don't have to define alit,
2429: \ seperately for embedded systems....
2430: T has? relocate H
2431: [IF]
2432: : (alit,) ( n -- ) compile lit T a, H ; ' (alit,) plugin-of alit,
2433: [ELSE]
2434: : (alit,) ( n -- ) lit, ; ' (alit,) plugin-of alit,
2435: [THEN]
2436:
2437: : (fini,) compile ;s ; ' (fini,) plugin-of fini,
2438:
2439: [IFUNDEF] (code)
2440: Defer (code)
2441: Defer (end-code)
2442: [THEN]
2443:
2444: >TARGET
2445: : Code
2446: defempty?
2447: (THeader ( ghost )
2448: ['] prim-resolved over >comp !
2449: there resolve-noforwards
2450:
2451: [ T e? prims H 0= [IF] T e? ITC H [ELSE] true [THEN] ] [IF]
2452: doprim,
2453: [THEN]
2454: depth (code) ;
2455:
2456: \ FIXME : no-compile -1 ABORT" this ghost is not for compilation" ;
2457:
2458: : Code:
2459: defempty?
2460: Ghost >r
2461: r@ >ghostname there symentry
2462: r@ there ca>native resolve-noforwards
2463: <do:> r@ >magic !
2464: r> drop
2465: depth (code) ;
2466:
2467: : end-code
2468: (end-code)
2469: depth ?dup IF 1- <> ABORT" CROSS: Stack changed"
2470: ELSE true ABORT" CROSS: Stack empty" THEN
2471: ;
2472:
2473: >CROSS
2474:
2475: \ tLiteral 12dec92py
2476:
2477: >TARGET
2478: Cond: \G T-\G ;Cond
2479:
2480: Cond: Literal ( n -- ) lit, ;Cond
2481: Cond: ALiteral ( n -- ) alit, ;Cond
2482:
2483: : Char ( "<char>" -- ) bl word char+ c@ ;
2484: Cond: [Char] ( "<char>" -- ) Char lit, ;Cond
2485:
2486: : (x#) ( adr len base -- )
2487: base @ >r base ! 0 0 name >number 2drop drop r> base ! ;
2488:
2489: : d# $0a (x#) ;
2490: : h# $010 (x#) ;
2491:
2492: Cond: d# $0a (x#) lit, ;Cond
2493: Cond: h# $010 (x#) lit, ;Cond
2494:
2495: tchar 1 = [IF]
2496: Cond: chars ;Cond
2497: [THEN]
2498:
2499: \ some special literals 27jan97jaw
2500:
2501: Cond: MAXU
2502: -1 s>d dlit,
2503: ;Cond
2504:
2505: tcell 2 = tcell 4 = or tcell 8 = or 0=
2506: [IF]
2507: .( Warning: MINI and MAXI may not work with this host) cr
2508: [THEN]
2509:
2510: Cond: MINI
2511: tcell 2 = IF $8000 ELSE $80000000 THEN 0
2512: tcell 8 = IF swap THEN dlit,
2513: ;Cond
2514:
2515: Cond: MAXI
2516: tcell 2 = IF $7fff ELSE $7fffffff THEN 0
2517: tcell 8 = IF drop -1 swap THEN dlit,
2518: ;Cond
2519:
2520: >CROSS
2521:
2522: \ Target compiling loop 12dec92py
2523: \ ">tib trick thrown out 10may93jaw
2524: \ number? defined at the top 11may93jaw
2525: \ replaced >in by save-input
2526:
2527: : discard 0 ?DO drop LOOP ;
2528:
2529: \ compiled word might leave items on stack!
2530: : tcom ( x1 .. xn n name -- )
2531: \ dup count type space
2532: gfind
2533: IF >r ( discard saved input state ) discard r>
2534: dup >exec-compile @ ?dup
2535: IF nip execute-exec-compile ELSE gexecute THEN
2536: EXIT
2537: THEN
2538: (number?) dup
2539: IF 0> IF swap lit, THEN lit, discard
2540: ELSE 2drop restore-input throw Ghost gexecute THEN ;
2541:
2542: \ : ; DOES> 13dec92py
2543: \ ] 9may93py/jaw
2544:
2545: >CROSS
2546:
2547: : compiling-state ( -- )
2548: \G set states to compililng
2549: Compiling comp-state !
2550: \ if we have a state in target, change it with the compile state
2551: [G'] state dup undefined? 0=
2552: IF >ghost-xt @ execute X on ELSE drop THEN ;
2553:
2554: : interpreting-state ( -- )
2555: \G set states to interpreting
2556: \ if target has a state variable, change it according to our state
2557: [G'] state dup undefined? 0=
2558: IF >ghost-xt @ execute X off ELSE drop THEN
2559: Interpreting comp-state ! ;
2560:
2561: >TARGET
2562:
2563: : ]
2564: compiling-state
2565: BEGIN
2566: BEGIN save-input bl word
2567: dup c@ 0= WHILE drop discard refill 0=
2568: ABORT" CROSS: End of file while target compiling"
2569: REPEAT
2570: tcom
2571: compiling? 0=
2572: UNTIL ;
2573:
2574: \ by the way: defining a second interpreter (a compiler-)loop
2575: \ is not allowed if a system should be ans conform
2576:
2577: : (:) ( ghost -- )
2578: \ common factor of : and :noname. Prepare ;Resolve and start definition
2579: ;Resolve ! there ;Resolve cell+ !
2580: docol, ]comp colon-start depth T ] H ;
2581:
2582: : : ( -- colon-sys ) \ Name
2583: defempty?
2584: constflag off \ don't let this flag work over colon defs
2585: \ just to go sure nothing unwanted happens
2586: >in @ skip? IF drop skip-defs EXIT THEN >in !
2587: (THeader (:) ;
2588:
2589: : :noname ( -- colon-sys )
2590: switchrom X cfalign there
2591: \ define a nameless ghost
2592: here ghostheader dup last-header-ghost ! dup to lastghost
2593: (:) ;
2594:
2595: Cond: EXIT ( -- ) compile ;S ;Cond
2596:
2597: Cond: ?EXIT ( -- ) 1 abort" CROSS: using ?exit" ;Cond
2598:
2599: >CROSS
2600: : LastXT ;Resolve @ 0= abort" CROSS: no definition for LastXT"
2601: ;Resolve cell+ @ ;
2602:
2603: >TARGET
2604:
2605: Cond: recurse ( -- ) Last-Header-Ghost @ gexecute ;Cond
2606:
2607: Cond: ; ( -- )
2608: depth ?dup
2609: IF 1- <> ABORT" CROSS: Stack changed"
2610: ELSE true ABORT" CROSS: Stack empty"
2611: THEN
2612: colon-end
2613: fini,
2614: comp[
2615: ;Resolve @
2616: IF ['] colon-resolved ;Resolve @ >comp !
2617: ;Resolve @ ;Resolve cell+ @ resolve
2618: THEN
2619: interpreting-state
2620: ;Cond
2621:
2622: Cond: [ ( -- ) interpreting-state ;Cond
2623:
2624: >CROSS
2625:
2626: 0 Value created
2627:
2628: : !does ( does-action -- )
2629: tlastcfa @ [G'] :dovar killref
2630: >space here >r ghostheader space>
2631: ['] colon-resolved r@ >comp !
2632: r@ created >do:ghost ! r@ swap resolve
2633: r> tlastcfa @ >tempdp dodoes, tempdp> ;
2634:
2635: Defer instant-interpret-does>-hook ' noop IS instant-interpret-does>-hook
2636:
2637: T has? primcentric H [IF]
2638: : does-resolved ( ghost -- )
2639: compile does-exec g>xt T a, H ;
2640: [ELSE]
2641: : does-resolved ( ghost -- )
2642: g>xt T a, H ;
2643: [THEN]
2644:
2645: : resolve-does>-part ( -- )
2646: \ resolve words made by builders
2647: Last-Header-Ghost @ >do:ghost @ ?dup
2648: IF there resolve THEN ;
2649:
2650: >TARGET
2651: Cond: DOES>
2652: T here H [ T has? primcentric H [IF] ] 5 [ [ELSE] ] 4 [ [THEN] ] T cells
2653: H + alit, compile !does compile ;s
2654: doeshandler, resolve-does>-part
2655: ;Cond
2656:
2657: : DOES>
2658: ['] does-resolved created >comp !
2659: switchrom doeshandler, T here H !does
2660: instant-interpret-does>-hook
2661: depth T ] H ;
2662:
2663: >CROSS
2664: \ Creation 01nov92py
2665:
2666: \ Builder 11may93jaw
2667:
2668: 0 Value built
2669:
2670: : Builder ( Create-xt do-ghost "name" -- )
2671: \ builds up a builder in current vocabulary
2672: \ create-xt is executed when word is interpreted
2673: \ do:-xt is executed when the created word from builder is executed
2674: \ for do:-xt an additional entry after the normal ghost-entrys is used
2675:
2676: ghost to built
2677: built >created @ 0= IF
2678: built >created on
2679: THEN ;
2680:
2681: : gdoes, ( ghost -- )
2682: \ makes the codefield for a word that is built
2683: >do:ghost @ dup undefined? 0=
2684: IF
2685: dup >magic @ <do:> =
2686: IF doer,
2687: ELSE dodoes,
2688: THEN
2689: EXIT
2690: THEN
2691: \ compile :dodoes gexecute
2692: \ T here H tcell - reloff
2693: 2 refered
2694: 0 fillcfa
2695: ;
2696:
2697: : takeover-x-semantics ( S constructor-ghost new-ghost -- )
2698: \g stores execution semantic and compilation semantic in the built word
2699: swap >do:ghost @ 2dup swap >do:ghost !
2700: \ we use the >exec2 field for the semantic of a created word,
2701: \ using exec or exec2 makes no difference for normal cross-compilation
2702: \ but is usefull for instant where the exec field is already
2703: \ defined (e.g. Vocabularies)
2704: 2dup >exec @ swap >exec2 !
2705: >comp @ swap >comp ! ;
2706:
2707: 0 Value createhere
2708:
2709: : create-resolve ( -- )
2710: created createhere resolve 0 ;Resolve ! ;
2711: : create-resolve-immediate ( -- )
2712: create-resolve T immediate H ;
2713:
2714: : TCreate ( <name> -- )
2715: create-forward-warn
2716: IF ['] reswarn-forward IS resolve-warning THEN
2717: executed-ghost @ (Theader
2718: dup >created on dup to created
2719: 2dup takeover-x-semantics
2720: there to createhere drop gdoes, ;
2721:
2722: : RTCreate ( <name> -- )
2723: \ creates a new word with code-field in ram
2724: create-forward-warn
2725: IF ['] reswarn-forward IS resolve-warning THEN
2726: \ make Alias
2727: executed-ghost @ (THeader
2728: dup >created on dup to created
2729: 2dup takeover-x-semantics
2730: there 0 T a, H alias-mask flag!
2731: \ store poiter to code-field
2732: switchram T cfalign H
2733: there swap T ! H
2734: there tlastcfa !
2735: there to createhere drop gdoes, ;
2736:
2737: : Build: ( -- [xt] [colon-sys] )
2738: :noname postpone TCreate ;
2739:
2740: : BuildSmart: ( -- [xt] [colon-sys] )
2741: :noname
2742: [ T has? rom H [IF] ]
2743: postpone RTCreate
2744: [ [ELSE] ]
2745: postpone TCreate
2746: [ [THEN] ] ;
2747:
2748: : ;Build
2749: postpone create-resolve postpone ; built >exec ! ; immediate
2750:
2751: : ;Build-immediate
2752: postpone create-resolve-immediate
2753: postpone ; built >exec ! ; immediate
2754:
2755: : gdoes> ( ghost -- addr flag )
2756: executed-ghost @ g>body ;
2757:
2758: \ DO: ;DO 11may93jaw
2759:
2760: : do:ghost! ( ghost -- ) built >do:ghost ! ;
2761: : doexec! ( xt -- ) built >do:ghost @ >exec ! ;
2762:
2763: : DO: ( -- [xt] [colon-sys] )
2764: here ghostheader do:ghost!
2765: :noname postpone gdoes> ;
2766:
2767: : by: ( -- [xt] [colon-sys] ) \ name
2768: Ghost do:ghost!
2769: :noname postpone gdoes> ;
2770:
2771: : ;DO ( [xt] [colon-sys] -- )
2772: postpone ; doexec! ; immediate
2773:
2774: : by ( -- ) \ Name
2775: Ghost >do:ghost @ do:ghost! ;
2776:
2777: : compile: ( --[xt] [colon-sys] )
2778: \G defines a compile time action for created words
2779: \G by this builder
2780: :noname ;
2781:
2782: : ;compile ( [xt] [colon-sys] -- )
2783: postpone ; built >do:ghost @ >comp ! ; immediate
2784:
2785: \ Variables and Constants 05dec92py
2786:
2787: Builder (Constant)
2788: Build: ( n -- ) ;Build
2789: by: :docon ( target-body-addr -- n ) T @ H ;DO
2790:
2791: Builder Constant
2792: Build: ( n -- ) T , H ;Build
2793: by (Constant)
2794:
2795: Builder AConstant
2796: Build: ( n -- ) T A, H ;Build
2797: by (Constant)
2798:
2799: Builder 2Constant
2800: Build: ( d -- ) T , , H ;Build
2801: DO: ( ghost -- d ) T dup cell+ @ swap @ H ;DO
2802:
2803: Builder Create
2804: BuildSmart: ;Build
2805: by: :dovar ( target-body-addr -- addr ) ;DO
2806:
2807: Builder Variable
2808: T has? rom H [IF]
2809: Build: ( -- ) T here 0 A, H switchram T align here swap ! 0 , H ( switchrom ) ;Build
2810: by (Constant)
2811: [ELSE]
2812: Build: T 0 , H ;Build
2813: by Create
2814: [THEN]
2815:
2816: Builder 2Variable
2817: T has? rom H [IF]
2818: Build: ( -- ) T here 0 A, H switchram T align here swap ! 0 , 0 , H ( switchrom ) ;Build
2819: by (Constant)
2820: [ELSE]
2821: Build: T 0 , 0 , H ;Build
2822: by Create
2823: [THEN]
2824:
2825: Builder AVariable
2826: T has? rom H [IF]
2827: Build: ( -- ) T here 0 A, H switchram T align here swap ! 0 A, H ( switchrom ) ;Build
2828: by (Constant)
2829: [ELSE]
2830: Build: T 0 A, H ;Build
2831: by Create
2832: [THEN]
2833:
2834: \ User variables 04may94py
2835:
2836: : tup@ user-region >rstart @ ;
2837:
2838: \ Variable tup 0 tup !
2839: \ Variable tudp 0 tudp !
2840:
2841: : u, ( n -- udp )
2842: current-region >r user-region activate
2843: X here swap X , tup@ -
2844: r> activate ;
2845:
2846: : au, ( n -- udp )
2847: current-region >r user-region activate
2848: X here swap X a, tup@ -
2849: r> activate ;
2850:
2851: T has? no-userspace H [IF]
2852:
2853: : buildby
2854: ghost >exec @ built >exec ! ;
2855:
2856: Builder User
2857: buildby Variable
2858: by Variable
2859:
2860: Builder 2User
2861: buildby 2Variable
2862: by 2Variable
2863:
2864: Builder AUser
2865: buildby AVariable
2866: by AVariable
2867:
2868: [ELSE]
2869:
2870: Builder User
2871: Build: 0 u, X , ;Build
2872: by: :douser ( ghost -- up-addr ) X @ tup@ + ;DO
2873:
2874: Builder 2User
2875: Build: 0 u, X , 0 u, drop ;Build
2876: by User
2877:
2878: Builder AUser
2879: Build: 0 au, X , ;Build
2880: by User
2881:
2882: [THEN]
2883:
2884: T has? rom H [IF]
2885: Builder (Value)
2886: Build: ( n -- ) ;Build
2887: by: :dovalue ( target-body-addr -- n ) T @ @ H ;DO
2888:
2889: Builder Value
2890: Build: T here 0 A, H switchram T align here swap ! , H ;Build
2891: by (Value)
2892:
2893: Builder AValue
2894: Build: T here 0 A, H switchram T align here swap ! A, H ;Build
2895: by (Value)
2896: [ELSE]
2897: Builder (Value)
2898: Build: ( n -- ) ;Build
2899: by: :dovalue ( target-body-addr -- n ) T @ H ;DO
2900:
2901: Builder Value
2902: BuildSmart: T , H ;Build
2903: by (Value)
2904:
2905: Builder AValue
2906: BuildSmart: T A, H ;Build
2907: by (Value)
2908: [THEN]
2909:
2910: Defer texecute
2911:
2912: Builder Defer
2913: T has? rom H [IF]
2914: Build: ( -- ) T here 0 A, H switchram T align here swap ! H [T'] noop T A, H ( switchrom ) ;Build
2915: by: :dodefer ( ghost -- ) X @ X @ texecute ;DO
2916: [ELSE]
2917: BuildSmart: ( -- ) [T'] noop T A, H ;Build
2918: by: :dodefer ( ghost -- ) X @ texecute ;DO
2919: [THEN]
2920:
2921: Builder interpret/compile:
2922: Build: ( inter comp -- ) swap T A, A, H ;Build-immediate
2923: DO: ( ghost -- ) ABORT" CROSS: Don't execute" ;DO
2924:
2925: \ Sturctures 23feb95py
2926:
2927: : nalign ( addr1 n -- addr2 )
2928: \ addr2 is the aligned version of addr1 wrt the alignment size n
2929: 1- tuck + swap invert and ;
2930:
2931:
2932: Builder (Field)
2933: Build: ;Build
2934: by: :dofield T @ H + ;DO
2935:
2936: Builder Field
2937: Build: ( align1 offset1 align size "name" -- align2 offset2 )
2938: rot dup T , H ( align1 align size offset1 )
2939: + >r nalign r> ;Build
2940: by (Field)
2941:
2942: >TARGET
2943: : struct T 1 chars 0 H ;
2944: : end-struct T 2Constant H ;
2945:
2946: : cell% ( n -- size align )
2947: T 1 cells H dup ;
2948: >CROSS
2949:
2950: \ ABI-CODE support
2951: Builder (ABI-CODE)
2952: Build: ;Build
2953: by: :doabicode noop ;DO
2954:
2955: BUILDER (;abi-code)
2956: Build: ;Build
2957: by: :do;abicode noop ;DO
2958:
2959: \ Input-Methods 01py
2960:
2961: Builder input-method
2962: Build: ( m v -- m' v ) dup T , cell+ H ;Build
2963: DO: abort" Not in cross mode" ;DO
2964:
2965: Builder input-var
2966: Build: ( m v size -- m v' ) over T , H + ;Build
2967: DO: abort" Not in cross mode" ;DO
2968:
2969: \ Mini-OOF
2970:
2971: Builder method
2972: Build: ( m v -- m' v ) over T , swap cell+ swap H ;Build
2973: DO: abort" Not in cross mode" ;DO
2974:
2975: Builder var
2976: Build: ( m v size -- m v+size ) over T , H + ;Build
2977: DO: ( o -- addr ) T @ H + ;DO
2978:
2979: Builder end-class
2980: Build: ( addr m v -- )
2981: T here >r , dup , 2 cells H ?DO T ['] noop , 1 cells H +LOOP
2982: T cell+ dup cell+ r> rot @ 2 cells /string move H ;Build
2983: by Create
2984:
2985: : class ( class -- class methods vars ) dup T 2@ H ;
2986: : defines ( xt class -- ) T ' >body @ + ! H ;
2987:
2988: \ Peephole optimization 05sep01jaw
2989:
2990: \ this section defines different compilation
2991: \ actions for created words
2992: \ this will help the peephole optimizer
2993: \ I (jaw) took this from bernds latest cross-compiler
2994: \ changes but seperated it from the original
2995: \ Builder words. The final plan is to put this
2996: \ into a seperate file, together with the peephole
2997: \ optimizer for cross
2998:
2999:
3000: T has? primcentric H [IF]
3001:
3002: \ .( loading peephole optimization) cr
3003:
3004: >CROSS
3005:
3006: : (callc) compile call T >body a, H ; ' (callc) plugin-of colon,
3007: : (callcm) T here 0 a, 0 a, H ; ' (callcm) plugin-of colonmark,
3008: : (call-res) >tempdp resolved gexecute tempdp> drop ;
3009: ' (call-res) plugin-of colon-resolve
3010: T has? ec H [IF]
3011: : (pprim) T @ H >signed dup 0< IF $4000 - ELSE
3012: cr ." wrong usage of (prim) "
3013: dup gdiscover IF .ghost ELSE . THEN cr -1 throw THEN
3014: T a, H ; ' (pprim) plugin-of prim,
3015: [ELSE]
3016: : (pprim) dup 0< IF $4000 - ELSE
3017: cr ." wrong usage of (prim) "
3018: dup gdiscover IF .ghost ELSE . THEN cr -1 throw THEN
3019: T a, H ; ' (pprim) plugin-of prim,
3020: [THEN]
3021:
3022: \ if we want this, we have to spilt aconstant
3023: \ and constant!!
3024: \ Builder (Constant)
3025: \ compile: g>body X @ lit, ;compile
3026:
3027: Builder (Constant)
3028: compile: g>body compile lit@ T a, H ;compile
3029:
3030: Builder (Value)
3031: compile: g>body compile lit@ T a, H ;compile
3032:
3033: \ this changes also Variable, AVariable and 2Variable
3034: Builder Create
3035: compile: g>body alit, ;compile
3036:
3037: Builder User
3038: compile: g>body compile useraddr T @ , H ;compile
3039:
3040: Builder Defer
3041: compile: g>body compile lit-perform T A, H ;compile
3042:
3043: Builder (Field)
3044: compile: g>body T @ H compile lit+ T here H reloff T , H ;compile
3045:
3046: Builder interpret/compile:
3047: compile: does-resolved ;compile
3048:
3049: Builder input-method
3050: compile: does-resolved ;compile
3051:
3052: Builder input-var
3053: compile: does-resolved ;compile
3054:
3055: [THEN]
3056:
3057: \ structural conditionals 17dec92py
3058:
3059: >CROSS
3060: : (ncontrols?) ( n -- )
3061: \g We expect n open control structures
3062: depth over u<=
3063: ABORT" CROSS: unstructured, stack underflow"
3064: 0 ?DO I pick 0=
3065: ABORT" CROSS: unstructured"
3066: LOOP ; ' (ncontrols?) plugin-of ncontrols?
3067:
3068: \ : ?struc ( flag -- ) ABORT" CROSS: unstructured " ;
3069: \ : sys? ( sys -- sys ) dup 0= ?struc ;
3070:
3071: : >mark ( -- sys ) T here 0 , H ;
3072:
3073: X has? abranch [IF]
3074: : branchoffset ( src dest -- ) drop ;
3075: : offset, ( n -- ) X A, ;
3076: [ELSE]
3077: : branchoffset ( src dest -- ) - tchar / ; \ ?? jaw
3078: : offset, ( n -- ) X , ;
3079: [THEN]
3080:
3081: :noname compile branch X here branchoffset offset, ;
3082: IS branch, ( target-addr -- )
3083: :noname compile ?branch X here branchoffset offset, ;
3084: IS ?branch, ( target-addr -- )
3085: :noname compile branch T here 0 H offset, ;
3086: IS branchmark, ( -- branchtoken )
3087: :noname compile ?branch T here 0 H offset, ;
3088: IS ?branchmark, ( -- branchtoken )
3089: :noname T here 0 H offset, ;
3090: IS ?domark, ( -- branchtoken )
3091: :noname dup X @ ?struc X here over branchoffset swap X ! ;
3092: IS branchtoresolve, ( branchtoken -- )
3093: :noname branchto, X here ;
3094: IS branchtomark, ( -- target-addr )
3095:
3096: >TARGET
3097:
3098: \ Structural Conditionals 12dec92py
3099:
3100: \ CLEANUP Cond: BUT sys? swap ;Cond
3101: \ CLEANUP Cond: YET sys? dup ;Cond
3102:
3103: >CROSS
3104:
3105: Variable tleavings 0 tleavings !
3106:
3107: : (done) ( do-addr -- )
3108: \G resolve branches of leave and ?leave and ?do
3109: \G do-addr is the address of the beginning of our
3110: \G loop so we can take care of nested loops
3111: tleavings @
3112: BEGIN dup
3113: WHILE
3114: >r dup r@ cell+ @ \ address of branch
3115: u> 0= \ lower than DO?
3116: WHILE
3117: r@ 2 cells + @ \ branch token
3118: branchtoresolve,
3119: r@ @ r> free throw
3120: REPEAT r> THEN
3121: tleavings ! drop ;
3122:
3123: >TARGET
3124:
3125: \ What for? ANS? JAW Cond: DONE ( addr -- ) (done) ;Cond
3126:
3127: >CROSS
3128: : (leave) ( branchtoken -- )
3129: 3 cells allocate throw >r
3130: T here H r@ cell+ !
3131: r@ 2 cells + !
3132: tleavings @ r@ !
3133: r> tleavings ! ;
3134: >TARGET
3135:
3136: : (leave,) ( -- )
3137: branchmark, (leave) ; ' (leave,) plugin-of leave,
3138:
3139: : (?leave,) ( -- )
3140: compile 0= ?branchmark, (leave) ; ' (?leave,) plugin-of ?leave,
3141:
3142: Cond: LEAVE leave, ;Cond
3143: Cond: ?LEAVE ?leave, ;Cond
3144:
3145: >CROSS
3146: \ !!JW ToDo : Move to general tools section
3147:
3148: : to1 ( x1 x2 xn n -- addr )
3149: \G packs n stack elements in am allocated memory region
3150: dup dup 1+ cells allocate throw dup >r swap 1+
3151: 0 DO tuck ! cell+ LOOP
3152: drop r> ;
3153:
3154: : 1to ( addr -- x1 x2 xn )
3155: \G unpacks the elements saved by to1
3156: dup @ swap over cells + swap
3157: 0 DO dup @ swap 1 cells - LOOP
3158: free throw ;
3159:
3160: : loop] ( target-addr -- )
3161: branchto,
3162: dup X here branchoffset offset,
3163: tcell - (done) ;
3164:
3165: : skiploop] ?dup IF branchto, branchtoresolve, THEN ;
3166:
3167: >TARGET
3168:
3169: \ Structural Conditionals 12dec92py
3170:
3171: : (cs-swap) ( x1 x2 -- x2 x1 )
3172: swap ; ' (cs-swap) plugin-of cs-swap
3173:
3174: : (ahead,) branchmark, ; ' (ahead,) plugin-of ahead,
3175:
3176: : (if,) ?branchmark, ; ' (if,) plugin-of if,
3177:
3178: : (then,) branchto, branchtoresolve, ; ' (then,) plugin-of then,
3179:
3180: : (else,) ( ahead ) branchmark,
3181: swap
3182: ( then ) branchto, branchtoresolve, ; ' (else,) plugin-of else,
3183:
3184: : (begin,) branchtomark, ; ' (begin,) plugin-of begin,
3185:
3186: : (while,) ( if ) ?branchmark,
3187: swap ; ' (while,) plugin-of while,
3188:
3189: : (again,) branch, ; ' (again,) plugin-of again,
3190:
3191: : (until,) ?branch, ; ' (until,) plugin-of until,
3192:
3193: : (repeat,) ( again ) branch,
3194: ( then ) branchto, branchtoresolve, ; ' (repeat,) plugin-of repeat,
3195:
3196: : (case,) ( -- n )
3197: 0 ; ' (case,) plugin-of case,
3198:
3199: : (of,) ( n -- x1 n )
3200: 1+ >r
3201: compile over compile =
3202: if, compile drop r> ; ' (of,) plugin-of of,
3203:
3204: : (endof,) ( x1 n -- x2 n )
3205: >r 1 ncontrols? else, r> ; ' (endof,) plugin-of endof,
3206:
3207: : (endcase,) ( x1 .. xn n -- )
3208: compile drop 0 ?DO 1 ncontrols? then, LOOP ; ' (endcase,) plugin-of endcase,
3209:
3210: >TARGET
3211: Cond: AHEAD ahead, ;Cond
3212: Cond: IF if, ;Cond
3213: Cond: THEN 1 ncontrols? then, ;Cond
3214: Cond: ENDIF 1 ncontrols? then, ;Cond
3215: Cond: ELSE 1 ncontrols? else, ;Cond
3216:
3217: Cond: BEGIN begin, ;Cond
3218: Cond: WHILE 1 ncontrols? while, ;Cond
3219: Cond: AGAIN 1 ncontrols? again, ;Cond
3220: Cond: UNTIL 1 ncontrols? until, ;Cond
3221: Cond: REPEAT 2 ncontrols? repeat, ;Cond
3222:
3223: Cond: CASE case, ;Cond
3224: Cond: OF of, ;Cond
3225: Cond: ENDOF endof, ;Cond
3226: Cond: ENDCASE endcase, ;Cond
3227:
3228: \ Structural Conditionals 12dec92py
3229:
3230: : (do,) ( -- target-addr )
3231: \ ?? i think 0 is too much! jaw
3232: 0 compile (do)
3233: branchtomark, 2 to1 ; ' (do,) plugin-of do,
3234:
3235: \ alternative for if no ?do
3236: \ : (do,)
3237: \ compile 2dup compile = compile IF
3238: \ compile 2drop compile ELSE
3239: \ compile (do) branchtomark, 2 to1 ;
3240:
3241: : (?do,) ( -- target-addr )
3242: 0 compile (?do) ?domark, (leave)
3243: branchtomark, 2 to1 ; ' (?do,) plugin-of ?do,
3244:
3245: : (for,) ( -- target-addr )
3246: compile (for) branchtomark, ; ' (for,) plugin-of for,
3247:
3248: : (loop,) ( target-addr -- )
3249: 1to compile (loop) loop]
3250: compile unloop skiploop] ; ' (loop,) plugin-of loop,
3251:
3252: : (+loop,) ( target-addr -- )
3253: 1to compile (+loop) loop]
3254: compile unloop skiploop] ; ' (+loop,) plugin-of +loop,
3255:
3256: : (-loop,) ( target-addr -- )
3257: 1to compile (-loop) loop]
3258: compile unloop skiploop] ; ' (-loop,) plugin-of -loop,
3259:
3260: : (next,)
3261: compile (next) loop] compile unloop ; ' (next,) plugin-of next,
3262:
3263: Cond: DO do, ;Cond
3264: Cond: ?DO ?do, ;Cond
3265: Cond: FOR for, ;Cond
3266:
3267: Cond: LOOP 1 ncontrols? loop, ;Cond
3268: Cond: +LOOP 1 ncontrols? +loop, ;Cond
3269: Cond: -LOOP 1 ncontrols? -loop, ;Cond
3270: Cond: NEXT 1 ncontrols? next, ;Cond
3271:
3272: \ String words 23feb93py
3273:
3274: : ," [char] " parse ht-string, X align ;
3275:
3276: X has? control-rack [IF]
3277: Cond: ." compile (.") T ," H ;Cond
3278: Cond: S" compile (S") T ," H ;Cond
3279: Cond: C" compile (C") T ," H ;Cond
3280: Cond: ABORT" compile (ABORT") T ," H ;Cond
3281: [ELSE]
3282: Cond: ." '" parse tuck 2>r ahead, there 2r> ht-mem, X align
3283: >r then, r> compile ALiteral compile Literal compile type ;Cond
3284: Cond: S" '" parse tuck 2>r ahead, there 2r> ht-mem, X align
3285: >r then, r> compile ALiteral compile Literal ;Cond
3286: Cond: C" ahead, there [char] " parse ht-string, X align
3287: >r then, r> compile ALiteral ;Cond
3288: Cond: ABORT" if, ahead, there [char] " parse ht-string, X align
3289: >r then, r> compile ALiteral compile c(abort") then, ;Cond
3290: [THEN]
3291:
3292: X has? rom [IF]
3293: Cond: IS T ' >body @ H compile ALiteral compile ! ;Cond
3294: : IS T >address ' >body @ ! H ;
3295: Cond: TO T ' >body @ H compile ALiteral compile ! ;Cond
3296: : TO T ' >body @ ! H ;
3297: Cond: CTO T ' >body H compile ALiteral compile ! ;Cond
3298: : CTO T ' >body ! H ;
3299: [ELSE]
3300: Cond: IS T ' >body H compile ALiteral compile ! ;Cond
3301: : IS T >address ' >body ! H ;
3302: Cond: TO T ' >body H compile ALiteral compile ! ;Cond
3303: : TO T ' >body ! H ;
3304: [THEN]
3305:
3306: Cond: defers T ' >body @ compile, H ;Cond
3307:
3308: \ LINKED ERR" ENV" 2ENV" 18may93jaw
3309:
3310: \ linked list primitive
3311: : linked X here over X @ X A, swap X ! ;
3312: : chained T linked A, H ;
3313:
3314: : err" s" ErrLink linked" evaluate T , H
3315: [char] " parse ht-string, X align ;
3316:
3317: : env" [char] " parse s" EnvLink linked" evaluate
3318: ht-string, X align X , ;
3319:
3320: : 2env" [char] " parse s" EnvLink linked" evaluate
3321: here >r ht-string, X align X , X ,
3322: r> dup T c@ H 80 and swap T c! H ;
3323:
3324: \ compile must be last 22feb93py
3325:
3326: Cond: [compile] ( -- ) \ name
3327: \g For immediate words, works even if forward reference
3328: bl word gfind 0= ABORT" CROSS: Can't compile"
3329: (gexecute) ;Cond
3330:
3331: Cond: postpone ( -- ) \ name
3332: bl word gfind 0= ABORT" CROSS: Can't compile"
3333: dup >magic @ <fwd> =
3334: ABORT" CROSS: Can't postpone on forward declaration"
3335: dup >magic @ <imm> =
3336: IF (gexecute)
3337: ELSE >link @ alit, compile compile, THEN ;Cond
3338:
3339: \ save-cross 17mar93py
3340:
3341: hex
3342:
3343: >CROSS
3344: Create magic s" Gforth4x" here over allot swap move
3345:
3346: bigendian 1+ \ strangely, in magic big=0, little=1
3347: tcell 1 = 0 and or
3348: tcell 2 = 2 and or
3349: tcell 4 = 4 and or
3350: tcell 8 = 6 and or
3351: tchar 1 = 00 and or
3352: tchar 2 = 28 and or
3353: tchar 4 = 50 and or
3354: tchar 8 = 78 and or
3355: magic 7 + c!
3356:
3357: : save-cross ( "image-name" "binary-name" -- )
3358: .regions \ s" ec" X $has? IF .regions THEN
3359: bl parse ." Saving to " 2dup type cr
3360: w/o bin create-file throw >r
3361: s" header" X $has? IF
3362: s" #! " r@ write-file throw
3363: bl parse r@ write-file throw
3364: s" --image-file" r@ write-file throw
3365: #lf r@ emit-file throw
3366: r@ dup file-position throw drop 8 mod 8 swap ( file-id limit index )
3367: ?do
3368: bl over emit-file throw
3369: loop
3370: drop
3371: magic 8 r@ write-file throw \ write magic
3372: ELSE
3373: bl parse 2drop
3374: THEN
3375: >rom dictionary >rmem @ there
3376: s" rom" X $has? IF dictionary >rstart @ - THEN
3377: r@ write-file throw \ write image
3378: s" relocate" X $has? IF
3379: dictionary >rbm @ there 1- tcell>bit rshift 1+
3380: r@ write-file throw \ write tags
3381: THEN
3382: r> close-file throw ;
3383:
3384: : save-region ( addr len -- )
3385: bl parse w/o bin create-file throw >r
3386: swap >image swap r@ write-file throw
3387: r> close-file throw ;
3388:
3389: \ save-asm-region 29aug01jaw
3390:
3391: Variable name-ptr
3392: Create name-buf 200 chars allot
3393: : init-name-buf name-buf name-ptr ! ;
3394: : nb, name-ptr @ c! 1 chars name-ptr +! ;
3395: : $nb, ( adr len -- ) bounds ?DO I c@ nb, LOOP ;
3396: : @nb name-ptr @ name-buf tuck - ;
3397:
3398: \ stores a usefull string representation of the character
3399: \ in the name buffer
3400: : name-char, ( c -- )
3401: dup 'a 'z 1+ within IF nb, EXIT THEN
3402: dup 'A 'Z 1+ within IF $20 + nb, EXIT THEN
3403: dup '0 '9 1+ within IF nb, EXIT THEN
3404: CASE '+ OF s" _PLUS" $nb, ENDOF
3405: '- OF s" _MINUS" $nb, ENDOF
3406: '* OF s" _STAR" $nb, ENDOF
3407: '/ OF s" _SLASH" $nb, ENDOF
3408: '' OF s" _TICK" $nb, ENDOF
3409: '( OF s" _OPAREN" $nb, ENDOF
3410: ') OF s" _CPAREN" $nb, ENDOF
3411: '[ OF s" _OBRACKET" $nb, ENDOF
3412: '] OF s" _CBRACKET" $nb, ENDOF
3413: '! OF s" _STORE" $nb, ENDOF
3414: '@ OF s" _FETCH" $nb, ENDOF
3415: '> OF s" _GREATER" $nb, ENDOF
3416: '< OF s" _LESS" $nb, ENDOF
3417: '= OF s" _EQUAL" $nb, ENDOF
3418: '# OF s" _HASH" $nb, ENDOF
3419: '? OF s" _QUEST" $nb, ENDOF
3420: ': OF s" _COL" $nb, ENDOF
3421: '; OF s" _SEMICOL" $nb, ENDOF
3422: ', OF s" _COMMA" $nb, ENDOF
3423: '. OF s" _DOT" $nb, ENDOF
3424: '" OF s" _DQUOT" $nb, ENDOF
3425: dup
3426: base @ >r hex s>d <# #s 'X hold '_ hold #> $nb, r> base !
3427: ENDCASE ;
3428:
3429: : label-from-ghostname ( ghost -- addr len )
3430: dup >ghostname init-name-buf 'L nb, bounds
3431: ?DO I c@ name-char, LOOP
3432: \ we add the address to a name to make in unique
3433: \ because one name may appear more then once
3434: \ there are names (e.g. boot) that may be reference from other
3435: \ assembler source files, so we declare them as unique
3436: \ and don't add the address suffix
3437: dup >ghost-flags @ <unique> and 0=
3438: IF s" __" $nb, >link @ base @ >r hex 0 <# #s 'L hold #> r> base ! $nb,
3439: ELSE drop
3440: THEN
3441: @nb ;
3442:
3443: \ FIXME why disabled?!
3444: : label-from-ghostnameXX ( ghost -- addr len )
3445: \ same as (label-from-ghostname) but caches generated names
3446: dup >asm-name @ ?dup IF nip count EXIT THEN
3447: \ dup >r (label-from-ghostname) 2dup
3448: align here >r string, align
3449: r> r> >asm-name ! ;
3450:
3451: : primghostdiscover ( xt -- ghost true | xt false )
3452: dup 0= IF false EXIT THEN
3453: >r last-prim-ghost
3454: BEGIN @ dup
3455: WHILE dup >asm-dummyaddr @ r@ =
3456: IF rdrop true EXIT THEN
3457: REPEAT
3458: drop r> false ;
3459:
3460: : gdiscover2 ( xt -- ghost true | xt false )
3461: dup taddr>region 0= IF false EXIT THEN
3462: dup (>regiontype) @ dup 0= IF drop false EXIT THEN
3463: addr-xt-ghost @ dup 0= IF drop false EXIT THEN
3464: nip true ;
3465: \ dup >ghost-name @ IF nip true ELSE drop false THEN ;
3466:
3467: \ generates a label name for the target address
3468: : generate-label-name ( taddr -- addr len )
3469: gdiscover2
3470: IF dup >magic @ <do:> =
3471: IF >asm-name @ count EXIT THEN
3472: label-from-ghostname
3473: ELSE
3474: primghostdiscover
3475: IF >asm-name @ count
3476: ELSE base @ >r hex 0 <# #s 'L hold #> r> base !
3477: THEN
3478: THEN ;
3479:
3480: Variable outfile-fd
3481:
3482: : $out ( adr len -- ) outfile-fd @ write-file throw ;
3483: : nlout newline $out ;
3484: : .ux ( n -- )
3485: base @ hex swap 0 <# #S #> $out base ! ;
3486:
3487: : save-asm-region-part-aligned ( taddr len -- 'taddr 'len )
3488: dup cell/ 0
3489: ?DO nlout s" .word " $out over @relbit
3490: IF over X @ generate-label-name $out
3491: ELSE over X @ s" 0x0" $out .ux
3492: THEN
3493: tcell /string
3494: LOOP ;
3495:
3496: : print-bytes ( taddr len n -- taddr' len' )
3497: over min dup 0>
3498: IF nlout s" .byte " $out 0
3499: ?DO I 0> IF s" , " $out THEN
3500: over X c@ s" 0x0" $out .ux 1 /string
3501: LOOP
3502: THEN ;
3503:
3504: : save-asm-region-part ( addr len -- )
3505: over dup X aligned swap - ?dup
3506: IF print-bytes THEN
3507: save-asm-region-part-aligned
3508: dup dup X aligned swap - ?dup
3509: IF 2 pick @relbit ABORT" relocated field splitted"
3510: print-bytes
3511: THEN
3512: 2drop ;
3513:
3514: : print-label ( taddr -- )
3515: nlout generate-label-name $out s" :" $out ;
3516:
3517: : snl-calc ( taddr taddr2 -- )
3518: tuck over - ;
3519:
3520: : skip-nolables ( taddr -- taddr2 taddr len )
3521: \G skips memory region where no lables are defined
3522: \G starting from taddr+1
3523: \G Labels will be introduced for each reference mark
3524: \G in addr-refs.
3525: \G This word deals with lables at byte addresses as well.
3526: \G The main idea is to have an intro part which
3527: \G skips until the next cell boundary, the middle part
3528: \G which skips whole cells very efficiently and the third
3529: \G part which skips the bytes to the label in a cell
3530: dup 1+ dup (>regiontype)
3531: ( S taddr taddr-realstart type-addr )
3532: dup @ dup IF addr-refs @ THEN
3533: swap >r
3534: over align+ tuck tcell swap - rshift swap 0
3535: ?DO dup 1 and
3536: IF drop rdrop snl-calc UNLOOP EXIT THEN
3537: 2/ swap 1+ swap
3538: LOOP
3539: drop r> cell+
3540: ( S .. taddr2 type-addr ) dup
3541: BEGIN dup @ dup IF addr-refs @ THEN 0= WHILE cell+ REPEAT
3542: dup >r swap - 1 cells / tcell * + r>
3543: ( S .. taddr2+skiplencells type-addr )
3544: @ addr-refs @ 1 tcell lshift or
3545: BEGIN dup 1 and 0= WHILE swap 1+ swap 2/ REPEAT drop
3546: ( S .. taddr2+skiplencells+skiplenbytes )
3547: snl-calc ;
3548:
3549: : insert-label ( taddr -- )
3550: dup 0= IF drop EXIT THEN
3551: \ ignore everything which points outside our memory regions
3552: \ maybe a primitive pointer or whatever
3553: dup taddr>region 0= IF drop EXIT THEN
3554: dup >r (>regiontype) define-addr-struct addr-refs dup @
3555: r> tcell 1- and 1 swap lshift or swap ! ;
3556:
3557: \ this generates a sorted list of addresses which must be labels
3558: \ it scans therefore a whole region
3559: : generate-label-list-region ( taddr len -- )
3560: BEGIN over @relbit IF over X @ insert-label THEN
3561: tcell /string dup 0<
3562: UNTIL 2drop ;
3563:
3564: : generate-label-list ( -- )
3565: region-link
3566: BEGIN @ dup WHILE
3567: dup 0 >rlink - extent
3568: ?dup IF generate-label-list-region ELSE drop THEN
3569: REPEAT drop ;
3570:
3571: : create-outfile ( addr len -- )
3572: w/o bin create-file throw outfile-fd ! ;
3573:
3574: : close-outfile ( -- )
3575: outfile-fd @ close-file throw ;
3576:
3577: : (save-asm-region) ( region -- )
3578: \ ." label list..."
3579: generate-label-list
3580: \ ." ok!" cr
3581: extent ( S taddr len )
3582: over insert-label
3583: 2dup + dup insert-label >r ( R end-label )
3584: ( S taddr len ) drop
3585: BEGIN
3586: dup print-label
3587: dup r@ <> WHILE
3588: skip-nolables save-asm-region-part
3589: REPEAT drop rdrop ;
3590:
3591: : lineout ( addr len -- )
3592: outfile-fd @ write-line throw ;
3593:
3594: : save-asm-region ( region adr len -- )
3595: create-outfile (save-asm-region) close-outfile ;
3596:
3597: \ \ minimal definitions
3598:
3599: >MINIMAL also minimal
3600:
3601: \ Usefull words 13feb93py
3602:
3603: : KB 400 * ;
3604:
3605: \ \ [IF] [ELSE] [THEN] ... 14sep97jaw
3606:
3607: \ it is useful to define our own structures and not to rely
3608: \ on the words in the host system
3609: \ The words in the host system might be defined with vocabularies
3610: \ this doesn't work with our self-made compile-loop
3611:
3612: Create parsed 20 chars allot \ store word we parsed
3613:
3614: : upcase
3615: parsed count bounds
3616: ?DO I c@ toupper I c! LOOP ;
3617:
3618: : [ELSE]
3619: 1 BEGIN
3620: BEGIN bl word count dup WHILE
3621: comment? 20 umin parsed place upcase parsed count
3622: 2dup s" [IF]" str= >r
3623: 2dup s" [IFUNDEF]" str= >r
3624: 2dup s" [IFDEF]" str= r> or r> or
3625: IF 2drop 1+
3626: ELSE 2dup s" [ELSE]" str=
3627: IF 2drop 1- dup
3628: IF 1+
3629: THEN
3630: ELSE
3631: 2dup s" [ENDIF]" str= >r
3632: s" [THEN]" str= r> or
3633: IF 1- THEN
3634: THEN
3635: THEN
3636: ?dup 0= ?EXIT
3637: REPEAT
3638: 2drop refill 0=
3639: UNTIL drop ; immediate
3640:
3641: : [THEN] ( -- ) ; immediate
3642:
3643: : [ENDIF] ( -- ) ; immediate
3644:
3645: : [IF] ( flag -- )
3646: 0= IF postpone [ELSE] THEN ; immediate
3647:
3648: Cond: [IF] postpone [IF] ;Cond
3649: Cond: [THEN] postpone [THEN] ;Cond
3650: Cond: [ELSE] postpone [ELSE] ;Cond
3651:
3652: \ define new [IFDEF] and [IFUNDEF] 20may93jaw
3653:
3654: : defined? tdefined? ;
3655: : needed? needed? ;
3656: : doer? doer? ;
3657:
3658: \ we want to use IFDEF on compiler directives (e.g. E?) in the source, too
3659:
3660: : directive?
3661: bl word count [ ' target >wordlist ] literal search-wordlist
3662: dup IF nip THEN ;
3663:
3664: : [IFDEF] >in @ directive? swap >in !
3665: 0= IF tdefined? ELSE name 2drop true THEN
3666: postpone [IF] ;
3667:
3668: : [IFUNDEF] tdefined? 0= postpone [IF] ;
3669:
3670: Cond: [IFDEF] postpone [IFDEF] ;Cond
3671:
3672: Cond: [IFUNDEF] postpone [IFUNDEF] ;Cond
3673:
3674: \ C: \- \+ Conditional Compiling 09jun93jaw
3675:
3676: : C: >in @ tdefined? 0=
3677: IF >in ! X :
3678: ELSE drop
3679: BEGIN bl word dup c@
3680: IF count comment? s" ;" str= ?EXIT
3681: ELSE refill 0= ABORT" CROSS: Out of Input while C:"
3682: THEN
3683: AGAIN
3684: THEN ;
3685:
3686: : d? d? ;
3687:
3688: : \D ( -- "debugswitch" )
3689: \G doesn't skip line when debug switch is on
3690: D? 0= IF postpone \ THEN ;
3691:
3692: : \- ( -- "wordname" )
3693: \G interprets the line if word is not defined
3694: tdefined? IF postpone \ THEN ;
3695:
3696: : \+ ( -- "wordname" )
3697: \G interprets the line if word is defined
3698: tdefined? 0= IF postpone \ THEN ;
3699:
3700: : \? ( -- "envorinstring" )
3701: \G Skip line if environmental variable evaluates to false
3702: X has? 0= IF postpone \ THEN ;
3703:
3704: Cond: \- \- ;Cond
3705: Cond: \+ \+ ;Cond
3706: Cond: \D \D ;Cond
3707: Cond: \? \? ;Cond
3708:
3709: : ?? bl word find IF execute ELSE drop 0 THEN ;
3710:
3711: : needed:
3712: \G defines ghost for words that we want to be compiled
3713: BEGIN >in @ bl word c@ WHILE >in ! Ghost drop REPEAT drop ;
3714:
3715: \ words that should be in minimal
3716:
3717: create s-buffer 50 chars allot
3718:
3719: bigendian Constant bigendian
3720:
3721: : here there ;
3722: : equ constant ;
3723: : mark there constant ;
3724:
3725: \ compiler directives
3726: : >ram >ram ;
3727: : >rom >rom ;
3728: : >auto >auto ;
3729: : >tempdp >tempdp ;
3730: : tempdp> tempdp> ;
3731: : const constflag on ;
3732:
3733: : Redefinitions-start
3734: \G Starts a redefinition section. Warnings are disabled and
3735: \G existing ghosts are reused. This is used in the kernel
3736: \G where ( and \ and the like are redefined
3737: twarnings off warnings off reuse-ghosts on ;
3738:
3739: : Redefinitions-end
3740: \G Ends a redefinition section. Warnings are enabled again.
3741: twarnings on warnings on reuse-ghosts off ;
3742:
3743: : warnings name 3 =
3744: IF twarnings off warnings off ELSE twarnings on warnings on THEN drop ;
3745:
3746: : | ;
3747: \ : | NoHeaderFlag on ; \ This is broken (damages the last word)
3748:
3749: : save-cross save-cross ;
3750: : save-region save-region ;
3751: : tdump swap >image swap dump ;
3752:
3753: also forth
3754: [IFDEF] Label : Label defempty? Label ; [THEN]
3755: [IFDEF] start-macros : start-macros defempty? start-macros ; [THEN]
3756: \ [IFDEF] builttag : builttag builttag ; [THEN]
3757: previous
3758:
3759: : s" [char] " parse s-buffer place s-buffer count ; \ for environment?
3760: : + + ;
3761: : 1+ 1 + ;
3762: : 2+ 2 + ;
3763: : 1- 1- ;
3764: : - - ;
3765: : and and ;
3766: : or or ;
3767: : 2* 2* ;
3768: : * * ;
3769: : / / ;
3770: : dup dup ;
3771: : ?dup ?dup ;
3772: : over over ;
3773: : swap swap ;
3774: : rot rot ;
3775: : drop drop ;
3776: : 2drop 2drop ;
3777: : = = ;
3778: : <> <> ;
3779: : 0= 0= ;
3780: : lshift lshift ;
3781: : 2/ 2/ ;
3782: : hex. base @ $10 base ! swap . base ! ;
3783: : invert invert ;
3784: : linkstring ( addr u n addr -- )
3785: X here over X @ X , swap X ! X , ht-string, X align ;
3786: \ : . . ;
3787:
3788: : all-words ['] forced? IS skip? ;
3789: : needed-words ['] needed? IS skip? ;
3790: : undef-words ['] defined2? IS skip? ;
3791: : skipdef skipdef ;
3792:
3793: : \ postpone \ ; immediate
3794: : \G T-\G ; immediate
3795: : ( postpone ( ; immediate
3796: : include bl word count included ;
3797: : included swap >image swap included ;
3798: : require require ;
3799: : needs require ;
3800: : .( [char] ) parse type ;
3801: : ERROR" [char] " parse
3802: rot
3803: IF cr ." *** " type ." ***" -1 ABORT" CROSS: Target error, see text above"
3804: ELSE 2drop
3805: THEN ;
3806: : ." [char] " parse type ;
3807: : cr cr ;
3808:
3809: : times 0 ?DO dup X c, LOOP drop ; \ used for space table creation
3810:
3811: \ only forth also cross also minimal definitions order
3812:
3813: \ cross-compiler words
3814:
3815: : decimal decimal [g'] decimal >exec2 @ ?dup IF EXECUTE THEN ;
3816: : hex hex [g'] hex >exec2 @ ?dup IF EXECUTE THEN ;
3817:
3818: \ : tudp X tudp ;
3819: \ : tup X tup ;
3820:
3821: : doc-off false to-doc ! ;
3822: : doc-on true to-doc ! ;
3823:
3824: : declareunique ( "name" -- )
3825: \ Sets the unique flag for a ghost. The assembler output
3826: \ generates labels with the ghostname concatenated with the address
3827: \ while cross-compiling. The address is concatenated
3828: \ because we have double occurences of the same name.
3829: \ If we want to reference the labels from the assembler or C
3830: \ code we declare them unique, so the address is skipped.
3831: Ghost >ghost-flags dup @ <unique> or swap ! ;
3832:
3833: \ [IFDEF] dbg : dbg dbg ; [THEN]
3834:
3835: \ for debugging...
3836: \ : dbg dbg ;
3837: : horder order ;
3838: : hwords words ;
3839: \ : words also ghosts
3840: \ words previous ;
3841: : .s .s ;
3842: : depth depth ;
3843: : bye bye ;
3844:
3845: \ dummy
3846:
3847: \ turnkey direction
3848: : H forth ; immediate
3849: : T minimal ; immediate
3850: : G ghosts ; immediate
3851:
3852:
3853: \ these ones are pefered:
3854:
3855: : unlock previous forth also cross ;
3856:
3857: \ also minimal
3858: >cross
3859:
3860: : turnkey
3861: ghosts-wordlist 1 set-order
3862: also target definitions
3863: also Minimal also ;
3864:
3865: >minimal
3866:
3867: : [[+++
3868: turnkey unlock ;
3869:
3870: unlock definitions also minimal
3871:
3872: : lock turnkey ;
3873:
3874: Defer +++]]-hook
3875: : +++]] +++]]-hook lock ;
3876:
3877: LOCK
3878: \ load cross compiler extension defined in mach file
3879:
3880: UNLOCK >CROSS
3881:
3882: [IFDEF] extend-cross extend-cross [THEN]
3883:
3884: LOCK
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