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 Free Software Foundation, Inc.
5:
6: \ This file is part of Gforth.
7:
8: \ Gforth is free software; you can redistribute it and/or
9: \ modify it under the terms of the GNU General Public License
10: \ as published by the Free Software Foundation; either version 2
11: \ of the License, or (at your option) any later version.
12:
13: \ This program is distributed in the hope that it will be useful,
14: \ but WITHOUT ANY WARRANTY; without even the implied warranty of
15: \ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16: \ GNU General Public License for more details.
17:
18: \ You should have received a copy of the GNU General Public License
19: \ along with this program; if not, write to the Free Software
20: \ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
21:
22: 0
23: [IF]
24:
25: ToDo:
26: - Crossdoc destination ./doc/crossdoc.fd makes no sense when
27: cross.fs is used seperately. jaw
28: - Do we need this char translation with >address and in branchoffset?
29: (>body also affected) jaw
30:
31: [THEN]
32:
33: s" compat/strcomp.fs" included
34:
35: hex
36:
37: \ debugging for compiling
38:
39: \ print stack at each colon definition
40: \ : : save-input cr bl word count type restore-input throw .s : ;
41:
42: \ print stack at each created word
43: \ : create save-input cr bl word count type restore-input throw .s create ;
44:
45:
46: \ \ ------------- Setup Vocabularies
47:
48: \ Remark: Vocabulary is not ANS, but it should work...
49:
50: Vocabulary Cross
51: Vocabulary Target
52: Vocabulary Ghosts
53: Vocabulary Minimal
54: only Forth also Target also also
55: definitions Forth
56:
57: : T previous Ghosts also Target ; immediate
58: : G Ghosts ; immediate
59: : H previous Forth also Cross ; immediate
60:
61: forth definitions
62:
63: : T previous Ghosts also Target ; immediate
64: : G Ghosts ; immediate
65:
66:
67: : >cross also Cross definitions previous ;
68: : >target also Target definitions previous ;
69: : >minimal also Minimal definitions previous ;
70:
71: H
72:
73: >CROSS
74:
75: \ Test against this definitions to find out whether we are cross-compiling
76: \ may be usefull for assemblers
77: 0 Constant gforth-cross-indicator
78:
79: \ find out whether we are compiling with gforth
80:
81: : defined? bl word find nip ;
82: defined? emit-file defined? toupper and \ drop 0
83: [IF]
84: \ use this in a gforth system
85: : \GFORTH ; immediate
86: : \ANSI postpone \ ; immediate
87: [ELSE]
88: : \GFORTH postpone \ ; immediate
89: : \ANSI ; immediate
90: [THEN]
91:
92: \ANSI : [IFUNDEF] defined? 0= postpone [IF] ; immediate
93: \ANSI : [IFDEF] defined? postpone [IF] ; immediate
94: 0 \ANSI drop 1
95: [IF]
96: : \G postpone \ ; immediate
97: : rdrop postpone r> postpone drop ; immediate
98: : name bl word count ;
99: : bounds over + swap ;
100: : scan >r BEGIN dup WHILE over c@ r@ <> WHILE 1 /string REPEAT THEN rdrop ;
101: : linked here over @ , swap ! ;
102: : alias create , DOES> @ EXECUTE ;
103: : defer ['] noop alias ;
104: : is state @
105: IF ' >body postpone literal postpone !
106: ELSE ' >body ! THEN ; immediate
107: : 0>= 0< 0= ;
108: : d<> rot <> -rot <> or ;
109: : toupper dup [char] a [char] z 1+ within IF [char] A [char] a - + THEN ;
110: Variable ebuf
111: : emit-file ( c fd -- ior ) swap ebuf c! ebuf 1 chars rot write-file ;
112: 0a Constant #lf
113: 0d Constant #cr
114:
115: [IFUNDEF] Warnings Variable Warnings [THEN]
116:
117: \ \ Number parsing 23feb93py
118:
119: \ number? number 23feb93py
120:
121: Variable dpl
122:
123: hex
124: Create bases 10 , 2 , A , 100 ,
125: \ 16 2 10 character
126:
127: \ !! protect BASE saving wrapper against exceptions
128: : getbase ( addr u -- addr' u' )
129: over c@ [char] $ - dup 4 u<
130: IF
131: cells bases + @ base ! 1 /string
132: ELSE
133: drop
134: THEN ;
135:
136: : sign? ( addr u -- addr u flag )
137: over c@ [char] - = dup >r
138: IF
139: 1 /string
140: THEN
141: r> ;
142:
143: : s>unumber? ( addr u -- ud flag )
144: over [char] ' =
145: IF \ a ' alone is rather unusual :-)
146: drop char+ c@ 0 true EXIT
147: THEN
148: base @ >r dpl on getbase
149: 0. 2swap
150: BEGIN ( d addr len )
151: dup >r >number dup
152: WHILE \ there are characters left
153: dup r> -
154: WHILE \ the last >number parsed something
155: dup 1- dpl ! over c@ [char] . =
156: WHILE \ the current char is '.'
157: 1 /string
158: REPEAT THEN \ there are unparseable characters left
159: 2drop false
160: ELSE
161: rdrop 2drop true
162: THEN
163: r> base ! ;
164:
165: \ ouch, this is complicated; there must be a simpler way - anton
166: : s>number? ( addr len -- d f )
167: \ converts string addr len into d, flag indicates success
168: sign? >r
169: s>unumber?
170: 0= IF
171: rdrop false
172: ELSE \ no characters left, all ok
173: r>
174: IF
175: dnegate
176: THEN
177: true
178: THEN ;
179:
180: : s>number ( addr len -- d )
181: \ don't use this, there is no way to tell success
182: s>number? drop ;
183:
184: : snumber? ( c-addr u -- 0 / n -1 / d 0> )
185: s>number? 0=
186: IF
187: 2drop false EXIT
188: THEN
189: dpl @ dup 0< IF
190: nip
191: ELSE
192: 1+
193: THEN ;
194:
195: : number? ( string -- string 0 / n -1 / d 0> )
196: dup >r count snumber? dup if
197: rdrop
198: else
199: r> swap
200: then ;
201:
202: : number ( string -- d )
203: number? ?dup 0= abort" ?" 0<
204: IF
205: s>d
206: THEN ;
207:
208: [THEN]
209:
210: \ this provides assert( and struct stuff
211: \GFORTH [IFUNDEF] assert1(
212: \GFORTH also forth definitions require assert.fs previous
213: \GFORTH [THEN]
214:
215: >CROSS
216:
217: hex \ the defualt base for the cross-compiler is hex !!
218: \ Warnings off
219:
220: \ words that are generaly useful
221:
222: : KB 400 * ;
223: : >wordlist ( vocabulary-xt -- wordlist-struct )
224: also execute get-order swap >r 1- set-order r> ;
225:
226: : umax 2dup u< IF swap THEN drop ;
227: : umin 2dup u> IF swap THEN drop ;
228:
229: : string, ( c-addr u -- )
230: \ puts down string as cstring
231: dup c, here swap chars dup allot move ;
232:
233: : ," [char] " parse string, ;
234:
235: : SetValue ( n -- <name> )
236: \G Same behaviour as "Value" if the <name> is not defined
237: \G Same behaviour as "to" if <name> is defined
238: \G SetValue searches in the current vocabulary
239: save-input bl word >r restore-input throw r> count
240: get-current search-wordlist
241: IF drop >r
242: \ we have to set current to be topmost context wordlist
243: get-order get-order get-current swap 1+ set-order
244: r> ['] to execute
245: set-order
246: ELSE Value THEN ;
247:
248: : DefaultValue ( n -- <name> )
249: \G Same behaviour as "Value" if the <name> is not defined
250: \G DefaultValue searches in the current vocabulary
251: save-input bl word >r restore-input throw r> count
252: get-current search-wordlist
253: IF bl word drop 2drop ELSE Value THEN ;
254:
255: hex
256:
257: \ FIXME delete`
258: \ 1 Constant Cross-Flag \ to check whether assembler compiler plug-ins are
259: \ for cross-compiling
260: \ No! we use "[IFUNDEF]" there to find out whether we are target compiling!!!
261:
262: \ FIXME move down
263: : comment? ( c-addr u -- c-addr u )
264: 2dup s" (" str=
265: IF postpone (
266: ELSE 2dup s" \" str= IF postpone \ THEN
267: THEN ;
268:
269: : X ( -- <name> )
270: \G The next word in the input is a target word.
271: \G Equivalent to T <name> but without permanent
272: \G switch to target dictionary. Used as prefix e.g. for @, !, here etc.
273: bl word count [ ' target >wordlist ] Literal search-wordlist
274: IF state @ IF compile, ELSE execute THEN
275: ELSE -1 ABORT" Cross: access method not supported!"
276: THEN ; immediate
277:
278: \ Begin CROSS COMPILER:
279:
280: \ debugging
281:
282: 0 [IF]
283:
284: This implements debugflags for the cross compiler and the compiled
285: images. It works identical to the has-flags in the environment.
286: The debugflags are defined in a vocabluary. If the word exists and
287: its value is true, the flag is switched on.
288:
289: [THEN]
290:
291: >CROSS
292:
293: Vocabulary debugflags \ debug flags for cross
294: also debugflags get-order over
295: Constant debugflags-wl
296: set-order previous
297:
298: : DebugFlag
299: get-current >r debugflags-wl set-current
300: SetValue
301: r> set-current ;
302:
303: : Debug? ( adr u -- flag )
304: \G return true if debug flag is defined or switched on
305: debugflags-wl search-wordlist
306: IF EXECUTE
307: ELSE false THEN ;
308:
309: : D? ( <name> -- flag )
310: \G return true if debug flag is defined or switched on
311: \G while compiling we do not return the current value but
312: bl word count debug? ;
313:
314: : [d?]
315: \G compile the value-xt so the debug flag can be switched
316: \G the flag must exist!
317: bl word count debugflags-wl search-wordlist
318: IF compile,
319: ELSE -1 ABORT" unknown debug flag"
320: \ POSTPONE false
321: THEN ; immediate
322:
323: : symentry ( adr len taddr -- )
324: \G Produce a symbol table (an optional symbol address
325: \G map) if wanted
326: [ [IFDEF] fd-symbol-table ]
327: base @ swap hex s>d <# 8 0 DO # LOOP #> fd-symbol-table write-file throw base !
328: s" :" fd-symbol-table write-file throw
329: fd-symbol-table write-line throw
330: [ [ELSE] ]
331: 2drop drop
332: [ [THEN] ] ;
333:
334:
335: \ \ -------------------- source file
336:
337: decimal
338:
339: Variable cross-file-list
340: 0 cross-file-list !
341: Variable target-file-list
342: 0 target-file-list !
343: Variable host-file-list
344: 0 host-file-list !
345:
346: cross-file-list Value file-list
347: 0 Value source-desc
348:
349: \ file loading
350:
351: : >fl-id 1 cells + ;
352: : >fl-name 2 cells + ;
353:
354: Variable filelist 0 filelist !
355: Create NoFile ," #load-file#"
356:
357: : loadfile ( -- adr )
358: source-desc ?dup IF >fl-name ELSE NoFile THEN ;
359:
360: : sourcefilename ( -- adr len )
361: loadfile count ;
362:
363: \ANSI : sourceline# 0 ;
364:
365: \ \ -------------------- path handling from kernel/paths.fs
366:
367: \ paths.fs path file handling 03may97jaw
368:
369: \ -Changing the search-path:
370: \ fpath+ <path> adds a directory to the searchpath
371: \ fpath= <path>|<path> makes complete now searchpath
372: \ seperator is |
373: \ .fpath displays the search path
374: \ remark I:
375: \ a ./ in the beginning of filename is expanded to the directory the
376: \ current file comes from. ./ can also be included in the search-path!
377: \ ~+/ loads from the current working directory
378:
379: \ remark II:
380: \ if there is no sufficient space for the search path increase it!
381:
382:
383: \ -Creating custom paths:
384:
385: \ It is possible to use the search mechanism on yourself.
386:
387: \ Make a buffer for the path:
388: \ create mypath 100 chars , \ maximum length (is checked)
389: \ 0 , \ real len
390: \ 100 chars allot \ space for path
391: \ use the same functions as above with:
392: \ mypath path+
393: \ mypath path=
394: \ mypath .path
395:
396: \ do a open with the search path:
397: \ open-path-file ( adr len path -- fd adr len ior )
398: \ the file is opened read-only; if the file is not found an error is generated
399:
400: \ questions to: wilke@jwdt.com
401:
402: [IFUNDEF] +place
403: : +place ( adr len adr )
404: 2dup >r >r
405: dup c@ char+ + swap move
406: r> r> dup c@ rot + swap c! ;
407: [THEN]
408:
409: [IFUNDEF] place
410: : place ( c-addr1 u c-addr2 )
411: 2dup c! char+ swap move ;
412: [THEN]
413:
414: \ if we have path handling, use this and the setup of it
415: [IFUNDEF] open-fpath-file
416:
417: create sourcepath 1024 chars , 0 , 1024 chars allot \ !! make this dynamic
418: sourcepath value fpath
419:
420: : also-path ( adr len path^ -- )
421: >r
422: \ len check
423: r@ cell+ @ over + r@ @ u> ABORT" path buffer too small!"
424: \ copy into
425: tuck r@ cell+ dup @ cell+ + swap cmove
426: \ make delimiter
427: 0 r@ cell+ dup @ cell+ + 2 pick + c! 1 + r> cell+ +!
428: ;
429:
430: : only-path ( adr len path^ -- )
431: dup 0 swap cell+ ! also-path ;
432:
433: : path+ ( path-addr "dir" -- ) \ gforth
434: \G Add the directory @var{dir} to the search path @var{path-addr}.
435: name rot also-path ;
436:
437: : fpath+ ( "dir" ) \ gforth
438: \G Add directory @var{dir} to the Forth search path.
439: fpath path+ ;
440:
441: : path= ( path-addr "dir1|dir2|dir3" ) \ gforth
442: \G Make a complete new search path; the path separator is |.
443: name 2dup bounds ?DO i c@ [char] | = IF 0 i c! THEN LOOP
444: rot only-path ;
445:
446: : fpath= ( "dir1|dir2|dir3" ) \ gforth
447: \G Make a complete new Forth search path; the path separator is |.
448: fpath path= ;
449:
450: : path>string cell+ dup cell+ swap @ ;
451:
452: : next-path ( adr len -- adr2 len2 )
453: 2dup 0 scan
454: dup 0= IF 2drop 0 -rot 0 -rot EXIT THEN
455: >r 1+ -rot r@ 1- -rot
456: r> - ;
457:
458: : previous-path ( path^ -- )
459: dup path>string
460: BEGIN tuck dup WHILE repeat ;
461:
462: : .path ( path-addr -- ) \ gforth
463: \G Display the contents of the search path @var{path-addr}.
464: path>string
465: BEGIN next-path dup WHILE type space REPEAT 2drop 2drop ;
466:
467: : .fpath ( -- ) \ gforth
468: \G Display the contents of the Forth search path.
469: fpath .path ;
470:
471: : absolut-path? ( addr u -- flag ) \ gforth
472: \G A path is absolute if it starts with a / or a ~ (~ expansion),
473: \G or if it is in the form ./*, extended regexp: ^[/~]|./, or if
474: \G it has a colon as second character ("C:..."). Paths simply
475: \G containing a / are not absolute!
476: 2dup 2 u> swap 1+ c@ [char] : = and >r \ dos absoulte: c:/....
477: over c@ [char] / = >r
478: over c@ [char] ~ = >r
479: \ 2dup S" ../" string-prefix? r> or >r \ not catered for in expandtopic
480: S" ./" string-prefix?
481: r> r> r> or or or ;
482:
483: Create ofile 0 c, 255 chars allot
484: Create tfile 0 c, 255 chars allot
485:
486: : pathsep? dup [char] / = swap [char] \ = or ;
487:
488: : need/ ofile dup c@ + c@ pathsep? 0= IF s" /" ofile +place THEN ;
489:
490: : extractpath ( adr len -- adr len2 )
491: BEGIN dup WHILE 1-
492: 2dup + c@ pathsep? IF EXIT THEN
493: REPEAT ;
494:
495: : remove~+ ( -- )
496: ofile count s" ~+/" string-prefix?
497: IF
498: ofile count 3 /string ofile place
499: THEN ;
500:
501: : expandtopic ( -- ) \ stack effect correct? - anton
502: \ expands "./" into an absolute name
503: ofile count s" ./" string-prefix?
504: IF
505: ofile count 1 /string tfile place
506: 0 ofile c! sourcefilename extractpath ofile place
507: ofile c@ IF need/ THEN
508: tfile count over c@ pathsep? IF 1 /string THEN
509: ofile +place
510: THEN ;
511:
512: : compact.. ( adr len -- adr2 len2 )
513: \ deletes phrases like "xy/.." out of our directory name 2dec97jaw
514: over swap
515: BEGIN dup WHILE
516: dup >r '/ scan 2dup s" /../" string-prefix?
517: IF
518: dup r> - >r 4 /string over r> + 4 -
519: swap 2dup + >r move dup r> over -
520: ELSE
521: rdrop dup 1 min /string
522: THEN
523: REPEAT drop over - ;
524:
525: : reworkdir ( -- )
526: remove~+
527: ofile count compact..
528: nip ofile c! ;
529:
530: : open-ofile ( -- fid ior )
531: \G opens the file whose name is in ofile
532: expandtopic reworkdir
533: ofile count r/o open-file ;
534:
535: : check-path ( adr1 len1 adr2 len2 -- fd 0 | 0 <>0 )
536: 0 ofile ! >r >r ofile place need/
537: r> r> ofile +place
538: open-ofile ;
539:
540: : open-path-file ( addr1 u1 path-addr -- wfileid addr2 u2 0 | ior ) \ gforth
541: \G Look in path @var{path-addr} for the file specified by @var{addr1 u1}.
542: \G If found, the resulting path and an open file descriptor
543: \G are returned. If the file is not found, @var{ior} is non-zero.
544: >r
545: 2dup absolut-path?
546: IF rdrop
547: ofile place open-ofile
548: dup 0= IF >r ofile count r> THEN EXIT
549: ELSE r> path>string
550: BEGIN next-path dup
551: WHILE 5 pick 5 pick check-path
552: 0= IF >r 2drop 2drop r> ofile count 0 EXIT ELSE drop THEN
553: REPEAT
554: 2drop 2drop 2drop -38
555: THEN ;
556:
557: : open-fpath-file ( addr1 u1 -- wfileid addr2 u2 0 | ior ) \ gforth
558: \G Look in the Forth search path for the file specified by @var{addr1 u1}.
559: \G If found, the resulting path and an open file descriptor
560: \G are returned. If the file is not found, @var{ior} is non-zero.
561: fpath open-path-file ;
562:
563: fpath= ~+
564:
565: [THEN]
566:
567: \ \ -------------------- include require 13may99jaw
568:
569: >CROSS
570:
571: : add-included-file ( adr len -- adr )
572: dup >fl-name char+ allocate throw >r
573: file-list @ r@ ! r@ file-list !
574: r@ >fl-name place r> ;
575:
576: : included? ( c-addr u -- f )
577: file-list
578: BEGIN @ dup
579: WHILE >r 2dup r@ >fl-name count str=
580: IF rdrop 2drop true EXIT THEN
581: r>
582: REPEAT
583: 2drop drop false ;
584:
585: false DebugFlag showincludedfiles
586:
587: : included1 ( fd adr u -- )
588: \ include file adr u / fd
589: \ we don't use fd with include-file, because the forth system
590: \ doesn't know the name of the file to get a nice error report
591: [d?] showincludedfiles
592: IF cr ." Including: " 2dup type ." ..." THEN
593: rot close-file throw
594: source-desc >r
595: add-included-file to source-desc
596: sourcefilename
597: ['] included catch
598: r> to source-desc
599: throw ;
600:
601: : included ( adr len -- )
602: cross-file-list to file-list
603: open-fpath-file throw
604: included1 ;
605:
606: : required ( adr len -- )
607: cross-file-list to file-list
608: open-fpath-file throw \ 2dup cr ." R:" type
609: 2dup included?
610: IF 2drop close-file throw
611: ELSE included1
612: THEN ;
613:
614: : include bl word count included ;
615:
616: : require bl word count required ;
617:
618: 0 [IF]
619:
620: also forth definitions previous
621:
622: : included ( adr len -- ) included ;
623:
624: : required ( adr len -- ) required ;
625:
626: : include include ;
627:
628: : require require ;
629:
630: [THEN]
631:
632: >CROSS
633: hex
634:
635: \ \ -------------------- Error Handling 05aug97jaw
636:
637: \ Flags
638:
639: also forth definitions \ these values may be predefined before
640: \ the cross-compiler is loaded
641:
642: false DefaultValue stack-warn \ check on empty stack at any definition
643: false DefaultValue create-forward-warn \ warn on forward declaration of created words
644:
645: previous >CROSS
646:
647: : .dec
648: base @ decimal swap . base ! ;
649:
650: : .sourcepos
651: cr sourcefilename type ." :"
652: sourceline# .dec ;
653:
654: : warnhead
655: \G display error-message head
656: \G perhaps with linenumber and filename
657: .sourcepos ." Warning: " ;
658:
659: : empty? depth IF .sourcepos ." Stack not empty!" THEN ;
660:
661: stack-warn [IF]
662: : defempty? empty? ;
663: [ELSE]
664: : defempty? ; immediate
665: \ : defempty? .sourcepos ;
666: [THEN]
667:
668: \ \ -------------------- Compiler Plug Ins 01aug97jaw
669:
670: >CROSS
671:
672: \ Compiler States
673:
674: Variable comp-state
675: 0 Constant interpreting
676: 1 Constant compiling
677: 2 Constant resolving
678: 3 Constant assembling
679:
680: : compiling? comp-state @ compiling = ;
681:
682: : pi-undefined -1 ABORT" Plugin undefined" ;
683:
684: : Plugin ( -- : pluginname )
685: Create
686: \ for normal cross-compiling only one action
687: \ exists, this fields are identical. For the instant
688: \ simulation environment we need, two actions for each plugin
689: \ the target one and the one that generates the simulation code
690: ['] pi-undefined , \ action
691: ['] pi-undefined , \ target plugin action
692: 8765 , \ plugin magic
693: DOES> perform ;
694:
695: Plugin DummyPlugin
696:
697: : 'PI ( -- addr : pluginname )
698: ' >body dup 2 cells + @ 8765 <> ABORT" not a plugin" ;
699:
700: : plugin-of ( xt -- : pluginname )
701: dup 'PI 2! ;
702:
703: : action-of ( xt -- : plunginname )
704: 'PI cell+ ! ;
705:
706: : TPA ( -- : plugin )
707: \ target plugin action
708: \ executes current target action of plugin
709: 'PI cell+ POSTPONE literal POSTPONE perform ; immediate
710:
711: Variable ppi-temp 0 ppi-temp !
712:
713: : pa:
714: \g define plugin action
715: ppi-temp @ ABORT" pa: definition not closed"
716: 'PI ppi-temp ! :noname ;
717:
718: : ;pa
719: \g end a definition for plugin action
720: POSTPONE ; ppi-temp @ ! 0 ppi-temp ! ; immediate
721:
722:
723: Plugin dlit, ( d -- ) \ compile numerical value the target
724: Plugin lit, ( n -- )
725: Plugin alit, ( n -- )
726:
727: Plugin branch, ( target-addr -- ) \ compiles a branch
728: Plugin ?branch, ( target-addr -- ) \ compiles a ?branch
729: Plugin branchmark, ( -- branch-addr ) \ reserves room for a branch
730: Plugin ?branchmark, ( -- branch-addr ) \ reserves room for a ?branch
731: Plugin ?domark, ( -- branch-addr ) \ reserves room for a ?do branch
732: Plugin branchto, ( -- ) \ actual program position is target of a branch (do e.g. alignment)
733: ' NOOP plugin-of branchto,
734: Plugin branchtoresolve, ( branch-addr -- ) \ resolves a forward reference from branchmark
735: Plugin branchtomark, ( -- target-addr ) \ marks a branch destination
736:
737: Plugin colon, ( tcfa -- ) \ compiles call to tcfa at current position
738: Plugin prim, ( tcfa -- ) \ compiles primitive invocation
739: Plugin colonmark, ( -- addr ) \ marks a colon call
740: Plugin colon-resolve ( tcfa addr -- )
741:
742: Plugin addr-resolve ( target-addr addr -- )
743: Plugin doer-resolve ( ghost res-pnt target-addr addr -- ghost res-pnt )
744:
745: Plugin ncontrols? ( [ xn ... x1 ] n -- ) \ checks wheter n control structures are open
746: Plugin if, ( -- if-token )
747: Plugin else, ( if-token -- if-token )
748: Plugin then, ( if-token -- )
749: Plugin ahead,
750: Plugin begin,
751: Plugin while,
752: Plugin until,
753: Plugin again,
754: Plugin repeat,
755: Plugin cs-swap ( x1 x2 -- x2 x1 )
756:
757: Plugin case, ( -- n )
758: Plugin of, ( n -- x1 n )
759: Plugin endof, ( x1 n -- x2 n )
760: Plugin endcase, ( x1 .. xn n -- )
761:
762: Plugin do, ( -- do-token )
763: Plugin ?do, ( -- ?do-token )
764: Plugin for, ( -- for-token )
765: Plugin loop, ( do-token / ?do-token -- )
766: Plugin +loop, ( do-token / ?do-token -- )
767: Plugin next, ( for-token )
768: Plugin leave, ( -- )
769: Plugin ?leave, ( -- )
770:
771: Plugin ca>native \ Convert a code address to the processors
772: \ native address. This is used in doprim, and
773: \ code/code: primitive definitions word to
774: \ convert the addresses.
775: \ The only target where we need this is the misc
776: \ which is a 16 Bit processor with word addresses
777: \ but the forth system we build has a normal byte
778: \ addressed memory model
779:
780: Plugin doprim, \ compiles start of a primitive
781: Plugin docol, \ compiles start of a colon definition
782: Plugin doer,
783: Plugin fini, \ compiles end of definition ;s
784: Plugin doeshandler,
785: Plugin dodoes,
786:
787: Plugin colon-start
788: ' noop plugin-of colon-start
789: Plugin colon-end
790: ' noop plugin-of colon-end
791:
792: Plugin ]comp \ starts compilation
793: ' noop plugin-of ]comp
794: Plugin comp[ \ ends compilation
795: ' noop plugin-of comp[
796:
797: Plugin t>body \ we need the system >body
798: \ and the target >body
799:
800: >TARGET
801: : >body t>body ;
802:
803:
804: \ Ghost Builder 06oct92py
805:
806: >CROSS
807: hex
808: \ Values for ghost magic
809: 4711 Constant <fwd> 4712 Constant <res>
810: 4713 Constant <imm> 4714 Constant <do:>
811: 4715 Constant <skip>
812:
813: \ Bitmask for ghost flags
814: 1 Constant <unique>
815: 2 Constant <primitive>
816:
817: \ FXIME: move this to general stuff?
818: : set-flag ( addr flag -- )
819: over @ or swap ! ;
820:
821: : reset-flag ( addr flag -- )
822: invert over @ and swap ! ;
823:
824: : get-flag ( addr flag -- f )
825: swap @ and 0<> ;
826:
827:
828: Struct
829:
830: \ link to next ghost (always the first element)
831: cell% field >next-ghost
832:
833: \ type of ghost
834: cell% field >magic
835:
836: \ pointer where ghost is in target, or if unresolved
837: \ points to the where we have to resolve (linked-list)
838: cell% field >link
839:
840: \ execution semantics (while target compiling) of ghost
841: cell% field >exec
842:
843: \ compilation action of this ghost; this is what is
844: \ done to compile a call (or whatever) to this definition.
845: \ E.g. >comp contains the semantic of postpone s"
846: \ whereas >exec-compile contains the semantic of s"
847: cell% field >comp
848:
849: \ Compilation sematics (while parsing) of this ghost. E.g.
850: \ "\" will skip the rest of line.
851: \ These semantics are defined by Cond: and
852: \ if a word is made immediate in instant, then the >exec2 field
853: \ gets copied to here
854: cell% field >exec-compile
855:
856: \ Additional execution semantics of this ghost. This is used
857: \ for code generated by instant and for the doer-xt of created
858: \ words
859: cell% field >exec2
860:
861: cell% field >created
862:
863: \ the xt of the created ghost word itself
864: cell% field >ghost-xt
865:
866: \ pointer to the counted string of the assiciated
867: \ assembler label
868: cell% field >asm-name
869:
870: \ mapped primitives have a special address, so
871: \ we are able to detect them
872: cell% field >asm-dummyaddr
873:
874: \ for builder (create, variable...) words
875: \ the execution symantics of words built are placed here
876: \ this is a doer ghost or a dummy ghost
877: cell% field >do:ghost
878:
879: cell% field >ghost-flags
880:
881: cell% field >ghost-name
882:
883: End-Struct ghost-struct
884:
885: Variable ghost-list
886: 0 ghost-list !
887:
888: Variable executed-ghost \ last executed ghost, needed in tcreate and gdoes>
889: \ Variable last-ghost \ last ghost that is created
890: Variable last-header-ghost \ last ghost definitions with header
891:
892: \ space for ghosts resolve structure
893: \ we create ghosts in a sepearte space
894: \ and not to the current host dp, because this
895: \ gives trouble with instant while compiling and creating
896: \ a ghost for a forward reference
897: \ BTW: we cannot allocate another memory region
898: \ because allot will check the overflow!!
899: Variable cross-space-dp
900: Create cross-space 250000 allot here 100 allot align
901: Constant cross-space-end
902: cross-space cross-space-dp !
903: Variable cross-space-dp-orig
904:
905: : cross-space-used cross-space-dp @ cross-space - ;
906:
907: : >space ( -- )
908: dp @ cross-space-dp-orig !
909: cross-space-dp @ dp ! ;
910:
911: : space> ( -- )
912: dp @ dup cross-space-dp !
913: cross-space-end u> ABORT" CROSS: cross-space overflow"
914: cross-space-dp-orig @ dp ! ;
915:
916: \ this is just for debugging, to see this in the backtrace
917: : execute-exec execute ;
918: : execute-exec2 execute ;
919: : execute-exec-compile execute ;
920:
921: : NoExec
922: executed-ghost @ >exec2 @
923: ?dup
924: IF execute-exec2
925: ELSE true ABORT" CROSS: Don't execute ghost, or immediate target word"
926: THEN ;
927:
928: Defer is-forward
929:
930: : (ghostheader) ( -- )
931: ghost-list linked <fwd> , 0 , ['] NoExec , ['] is-forward ,
932: 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , ;
933:
934: : ghostheader ( -- ) (ghostheader) 0 , ;
935:
936: ' Ghosts >wordlist Constant ghosts-wordlist
937:
938: \ the current wordlist for ghost definitions in the host
939: ghosts-wordlist Value current-ghosts
940:
941: : Make-Ghost ( "name" -- ghost )
942: >space
943: \ save current and create in ghost vocabulary
944: get-current >r current-ghosts set-current
945: >in @ Create >in !
946: \ some forth systems like iForth need the immediate directly
947: \ after the word is created
948: \ restore current
949: r> set-current
950: here (ghostheader)
951: bl word count string, align
952: space>
953: \ set ghost-xt field by doing a search
954: dup >ghost-name count
955: current-ghosts search-wordlist
956: 0= ABORT" CROSS: Just created, must be there!"
957: over >ghost-xt !
958: DOES>
959: dup executed-ghost !
960: >exec @ execute-exec ;
961:
962: \ ghost words 14oct92py
963: \ changed: 10may93py/jaw
964:
965: Defer search-ghosts
966:
967: : (search-ghosts) ( adr len -- cfa true | 0 )
968: current-ghosts search-wordlist ;
969:
970: ' (search-ghosts) IS search-ghosts
971:
972: : gsearch ( addr len -- ghost true | 0 )
973: search-ghosts
974: dup IF swap >body swap THEN ;
975:
976: : gfind ( string -- ghost true / string false )
977: \ searches for string in word-list ghosts
978: \ dup count type space
979: dup >r count gsearch
980: dup IF rdrop ELSE r> swap THEN ;
981:
982: : gdiscover ( xt -- ghost true | xt false )
983: >r ghost-list
984: BEGIN @ dup
985: WHILE dup >magic @ <fwd> <>
986: IF dup >link @ r@ =
987: IF rdrop true EXIT THEN
988: THEN
989: REPEAT
990: drop r> false ;
991:
992: : xt>ghost ( xt -- ghost )
993: gdiscover 0= ABORT" CROSS: ghost not found for this xt" ;
994:
995: : Ghost ( "name" -- ghost )
996: >in @ bl word gfind IF nip EXIT THEN
997: drop >in ! Make-Ghost ;
998:
999: : >ghostname ( ghost -- adr len )
1000: >ghost-name count ;
1001:
1002: : forward? ( ghost -- flag )
1003: >magic @ <fwd> = ;
1004:
1005: : undefined? ( ghost -- flag )
1006: >magic @ dup <fwd> = swap <skip> = or ;
1007:
1008: : immediate? ( ghost -- flag )
1009: >magic @ <imm> = ;
1010:
1011: Variable TWarnings
1012: TWarnings on
1013: Variable Exists-Warnings
1014: Exists-Warnings on
1015:
1016: : exists-warning ( ghost -- ghost )
1017: TWarnings @ Exists-Warnings @ and
1018: IF dup >ghostname warnhead type ." exists " THEN ;
1019:
1020: \ : HeaderGhost Ghost ;
1021:
1022: Variable reuse-ghosts reuse-ghosts off
1023:
1024: : HeaderGhost ( "name" -- ghost )
1025: >in @
1026: bl word count
1027: \ 2dup type space
1028: current-ghosts search-wordlist
1029: IF >body dup undefined? reuse-ghosts @ or
1030: IF nip EXIT
1031: ELSE exists-warning
1032: THEN
1033: drop >in !
1034: ELSE >in !
1035: THEN
1036: \ we keep the execution semantics of the prviously
1037: \ defined words, this is a workaround
1038: \ for the redefined \ until vocs work
1039: Make-Ghost ;
1040:
1041: : .ghost ( ghost -- ) >ghostname type ;
1042:
1043: \ ' >ghostname ALIAS @name
1044:
1045: : findghost ( "ghostname" -- ghost )
1046: bl word gfind 0= ABORT" CROSS: Ghost don't exists" ;
1047:
1048: : [G'] ( -- ghost : name )
1049: \G ticks a ghost and returns its address
1050: findghost
1051: state @ IF postpone literal THEN ; immediate
1052:
1053: : g>xt ( ghost -- xt )
1054: \G Returns the xt (cfa) of a ghost. Issues a warning if undefined.
1055: dup undefined? ABORT" CROSS: forward " >link @ ;
1056:
1057: : g>body ( ghost -- body )
1058: \G Returns the body-address (pfa) of a ghost.
1059: \G Issues a warning if undefined (a forward-reference).
1060: g>xt X >body ;
1061:
1062: 1 Constant <label>
1063:
1064: Struct
1065: \ bitmask of address type (not used for now)
1066: cell% field addr-type
1067: \ if this address is an xt, this field points to the ghost
1068: cell% field addr-xt-ghost
1069: \ a bit mask that tells as what part of the cell
1070: \ is refenced from an address pointer, used for assembler generation
1071: cell% field addr-refs
1072: End-Struct addr-struct
1073:
1074: : %allocerase ( align size -- addr )
1075: dup >r %alloc dup r> erase ;
1076:
1077: \ returns the addr struct, define it if 0 reference
1078: : define-addr-struct ( addr -- struct-addr )
1079: dup @ ?dup IF nip EXIT THEN
1080: addr-struct %allocerase tuck swap ! ;
1081:
1082: >cross
1083:
1084: \ Predefined ghosts 12dec92py
1085:
1086: Ghost - drop \ need a ghost otherwise "-" would be treated as a number
1087:
1088: Ghost 0= drop
1089: Ghost branch Ghost ?branch 2drop
1090: Ghost unloop Ghost ;S 2drop
1091: Ghost lit Ghost ! 2drop
1092: Ghost noop drop
1093: Ghost over Ghost = Ghost drop 2drop drop
1094: Ghost 2drop drop
1095: Ghost 2dup drop
1096: Ghost call drop
1097: Ghost @ drop
1098: Ghost useraddr drop
1099: Ghost execute drop
1100: Ghost + drop
1101: Ghost decimal drop
1102: Ghost hex drop
1103: Ghost lit@ drop
1104: Ghost lit-perform drop
1105: Ghost lit+ drop
1106: Ghost does-exec drop
1107:
1108: Ghost :docol Ghost :doesjump Ghost :dodoes 2drop drop
1109: Ghost :dovar drop
1110:
1111: \ \ Parameter for target systems 06oct92py
1112:
1113:
1114: \ we define it ans like...
1115: wordlist Constant target-environment
1116:
1117: \ save information of current dictionary to restore with environ>
1118: Variable env-current
1119:
1120: : >ENVIRON get-current env-current ! target-environment set-current ;
1121: : ENVIRON> env-current @ set-current ;
1122:
1123: >TARGET
1124:
1125: : environment? ( addr len -- [ x ] true | false )
1126: \G returns the content of environment variable and true or
1127: \G false if not present
1128: target-environment search-wordlist
1129: IF EXECUTE true ELSE false THEN ;
1130:
1131: : $has? ( addr len -- x | false )
1132: \G returns the content of environment variable
1133: \G or false if not present
1134: T environment? H dup IF drop THEN ;
1135:
1136: : e? ( "name" -- x )
1137: \G returns the content of environment variable.
1138: \G The variable is expected to exist. If not, issue an error.
1139: bl word count T environment? H
1140: 0= ABORT" environment variable not defined!" ;
1141:
1142: : has? ( "name" --- x | false )
1143: \G returns the content of environment variable
1144: \G or false if not present
1145: bl word count T $has? H ;
1146:
1147:
1148: >ENVIRON get-order get-current swap 1+ set-order
1149: true SetValue compiler
1150: true SetValue cross
1151: true SetValue standard-threading
1152: >TARGET previous
1153:
1154: 0
1155: [IFDEF] mach-file drop mach-file count 1 [THEN]
1156: [IFDEF] machine-file drop machine-file 1 [THEN]
1157: [IF] included hex
1158: [ELSE] cr ." No machine description!" ABORT
1159: [THEN]
1160:
1161: >ENVIRON
1162:
1163: T has? ec H
1164: [IF]
1165: false DefaultValue relocate
1166: false DefaultValue file
1167: false DefaultValue OS
1168: false DefaultValue prims
1169: false DefaultValue floating
1170: false DefaultValue glocals
1171: false DefaultValue dcomps
1172: false DefaultValue hash
1173: false DefaultValue xconds
1174: false DefaultValue header
1175: false DefaultValue backtrace
1176: false DefaultValue new-input
1177: false DefaultValue peephole
1178: false DefaultValue abranch
1179: true DefaultValue f83headerstring
1180: true DefaultValue control-rack
1181: [THEN]
1182:
1183: true DefaultValue gforthcross
1184: true DefaultValue interpreter
1185: true DefaultValue ITC
1186: false DefaultValue rom
1187: true DefaultValue standardthreading
1188:
1189: \ ANSForth environment stuff
1190: 8 DefaultValue ADDRESS-UNIT-BITS
1191: 255 DefaultValue MAX-CHAR
1192: 255 DefaultValue /COUNTED-STRING
1193:
1194: >TARGET
1195: s" relocate" T environment? H
1196: \ JAW why set NIL to this?!
1197: [IF] drop \ SetValue NIL
1198: [ELSE] >ENVIRON X NIL SetValue relocate
1199: [THEN]
1200: >TARGET
1201:
1202: 0 Constant NIL
1203:
1204: >CROSS
1205:
1206: \ \ Create additional parameters 19jan95py
1207:
1208: \ currently cross only works for host machines with address-unit-bits
1209: \ eual to 8 because of s! and sc!
1210: \ but I start to query the environment just to modularize a little bit
1211:
1212: : check-address-unit-bits ( -- )
1213: \ s" ADDRESS-UNIT-BITS" environment?
1214: \ IF 8 <> ELSE true THEN
1215: \ ABORT" ADDRESS-UNIT-BITS unknown or not equal to 8!"
1216:
1217: \ shit, this doesn't work because environment? is only defined for
1218: \ gforth.fi and not kernl???.fi
1219: ;
1220:
1221: check-address-unit-bits
1222: 8 Constant bits/byte \ we define: byte is address-unit
1223:
1224: 1 bits/byte lshift Constant maxbyte
1225: \ this sets byte size for the target machine, (probably right guess) jaw
1226:
1227: T
1228: NIL Constant TNIL
1229: cell Constant tcell
1230: cell<< Constant tcell<<
1231: cell>bit Constant tcell>bit
1232: bits/char Constant tbits/char
1233: bits/char H bits/byte T /
1234: Constant tchar
1235: float Constant tfloat
1236: 1 bits/char lshift Constant tmaxchar
1237: [IFUNDEF] bits/byte
1238: 8 Constant tbits/byte
1239: [ELSE]
1240: bits/byte Constant tbits/byte
1241: [THEN]
1242: H
1243: tbits/char bits/byte / Constant tbyte
1244:
1245:
1246: \ Variables 06oct92py
1247:
1248: Variable (tlast)
1249: (tlast) Value tlast TNIL tlast ! \ Last name field
1250: Variable tlastcfa \ Last code field
1251:
1252: \ statistics 10jun97jaw
1253:
1254: Variable headers-named 0 headers-named !
1255: Variable user-vars 0 user-vars !
1256:
1257: : target>bitmask-size ( u1 -- u2 )
1258: 1- tcell>bit rshift 1+ ;
1259:
1260: : allocatetarget ( size -- adr )
1261: dup allocate ABORT" CROSS: No memory for target"
1262: swap over swap erase ;
1263:
1264: \ \ memregion.fs
1265:
1266:
1267: Variable last-defined-region \ pointer to last defined region
1268: Variable region-link \ linked list with all regions
1269: Variable mirrored-link \ linked list for mirrored regions
1270: 0 dup mirrored-link ! region-link !
1271:
1272: : >rname 9 cells + ;
1273: : >rtouch 8 cells + ; \ executed when region is accessed
1274: : >rbm 4 cells + ; \ bitfield per cell witch indicates relocation
1275: : >rmem 5 cells + ;
1276: : >rtype 6 cells + ; \ field per cell witch points to a type struct
1277: : >rrom 7 cells + ; \ a -1 indicates that this region is rom
1278: : >rlink 3 cells + ;
1279: : >rdp 2 cells + ;
1280: : >rlen cell+ ;
1281: : >rstart ;
1282:
1283: : (region) ( addr len region -- )
1284: \G change startaddress and length of an existing region
1285: >r r@ last-defined-region !
1286: r@ >rlen ! dup r@ >rstart ! r> >rdp ! ;
1287:
1288: : uninitialized -1 ABORT" CROSS: Region is uninitialized" ;
1289:
1290: : region ( addr len -- "name" )
1291: \G create a new region
1292: \ check whether predefined region exists
1293: save-input bl word find >r >r restore-input throw r> r> 0=
1294: IF \ make region
1295: drop
1296: save-input create restore-input throw
1297: here last-defined-region !
1298: over ( startaddr ) , ( length ) , ( dp ) ,
1299: region-link linked 0 , 0 , 0 , 0 ,
1300: ['] uninitialized ,
1301: bl word count string,
1302: ELSE \ store new parameters in region
1303: bl word drop
1304: >body (region)
1305: THEN ;
1306:
1307: : borders ( region -- startaddr endaddr )
1308: \G returns lower and upper region border
1309: dup >rstart @ swap >rlen @ over + ;
1310:
1311: : extent ( region -- startaddr len )
1312: \G returns the really used area
1313: dup >rstart @ swap >rdp @ over - ;
1314:
1315: : area ( region -- startaddr totallen )
1316: \G returns the total area
1317: dup >rstart @ swap >rlen @ ;
1318:
1319: : dp@ ( region -- dp )
1320: >rdp @ ;
1321:
1322: : mirrored ( -- )
1323: \G mark last defined region as mirrored
1324: mirrored-link
1325: align linked last-defined-region @ , ;
1326:
1327: : writeprotected
1328: \G mark a region as write protected
1329: -1 last-defined-region @ >rrom ! ;
1330:
1331: : .addr ( u -- )
1332: \G prints a 16 or 32 Bit nice hex value
1333: base @ >r hex
1334: tcell 2 u>
1335: IF s>d <# # # # # [char] . hold # # # # #> type
1336: ELSE s>d <# # # # # # #> type
1337: THEN r> base ! space ;
1338:
1339: : .regions \G display region statistic
1340:
1341: \ we want to list the regions in the right order
1342: \ so first collect all regions on stack
1343: 0 region-link @
1344: BEGIN dup WHILE dup @ REPEAT drop
1345: BEGIN dup
1346: WHILE cr
1347: 0 >rlink - >r
1348: r@ >rname count tuck type
1349: 12 swap - 0 max spaces space
1350: ." Start: " r@ >rstart @ dup .addr space
1351: ." End: " r@ >rlen @ + .addr space
1352: ." DP: " r> >rdp @ .addr
1353: REPEAT drop
1354: s" rom" T $has? H 0= ?EXIT
1355: cr ." Mirrored:"
1356: mirrored-link @
1357: BEGIN dup
1358: WHILE space dup cell+ @ >rname count type @
1359: REPEAT drop cr
1360: ;
1361:
1362: \ -------- predefined regions
1363:
1364: 0 0 region address-space
1365: \ total memory addressed and used by the target system
1366:
1367: 0 0 region user-region
1368: \ data for user variables goes here
1369: \ this has to be defined before dictionary or ram-dictionary
1370:
1371: 0 0 region dictionary
1372: \ rom area for the compiler
1373:
1374: T has? rom H
1375: [IF]
1376: 0 0 region ram-dictionary mirrored
1377: \ ram area for the compiler
1378: [ELSE]
1379: ' dictionary ALIAS ram-dictionary
1380: [THEN]
1381:
1382: 0 0 region return-stack
1383:
1384: 0 0 region data-stack
1385:
1386: 0 0 region tib-region
1387:
1388: ' dictionary ALIAS rom-dictionary
1389:
1390: : setup-region ( region -- )
1391: >r
1392: \ allocate mem
1393: r@ >rlen @ allocatetarget
1394: r@ >rmem !
1395:
1396: r@ >rlen @
1397: target>bitmask-size allocatetarget
1398: r@ >rbm !
1399:
1400: r@ >rlen @
1401: tcell / 1+ cells allocatetarget r@ >rtype !
1402:
1403: ['] noop r@ >rtouch !
1404: rdrop ;
1405:
1406: : setup-target ( -- ) \G initialize target's memory space
1407: s" rom" T $has? H
1408: IF \ check for ram and rom...
1409: \ address-space area nip 0<>
1410: ram-dictionary area nip 0<>
1411: rom-dictionary area nip 0<>
1412: and 0=
1413: ABORT" CROSS: define address-space, rom- , ram-dictionary, with rom-support!"
1414: THEN
1415: address-space area nip
1416: IF
1417: address-space area
1418: ELSE
1419: dictionary area
1420: THEN
1421: nip 0=
1422: ABORT" CROSS: define at least address-space or dictionary!!"
1423:
1424: \ allocate target for each region
1425: region-link
1426: BEGIN @ dup
1427: WHILE dup
1428: 0 >rlink - >r
1429: r@ >rlen @
1430: IF r@ setup-region
1431: THEN rdrop
1432: REPEAT drop ;
1433:
1434: \ MakeKernel 22feb99jaw
1435:
1436: : makekernel ( start targetsize -- )
1437: \G convenience word to setup the memory of the target
1438: \G used by main.fs of the c-engine based systems
1439: dictionary (region) setup-target ;
1440:
1441: >MINIMAL
1442: : makekernel makekernel ;
1443: >CROSS
1444:
1445: \ \ switched tdp for rom support 03jun97jaw
1446:
1447: \ second value is here to store some maximal value for statistics
1448: \ tempdp is also embedded here but has nothing to do with rom support
1449: \ (needs switched dp)
1450:
1451: variable tempdp 0 , \ temporary dp for resolving
1452: variable tempdp-save
1453:
1454: 0 [IF]
1455: variable romdp 0 , \ Dictionary-Pointer for ramarea
1456: variable ramdp 0 , \ Dictionary-Pointer for romarea
1457:
1458: \
1459: variable sramdp \ start of ram-area for forth
1460: variable sromdp \ start of rom-area for forth
1461:
1462: [THEN]
1463:
1464: 0 Value current-region
1465: 0 Value tdp
1466: Variable fixed \ flag: true: no automatic switching
1467: \ false: switching is done automatically
1468:
1469: \ Switch-Policy:
1470: \
1471: \ a header is always compiled into rom
1472: \ after a created word (create and variable) compilation goes to ram
1473: \
1474: \ Be careful: If you want to make the data behind create into rom
1475: \ you have to put >rom before create!
1476:
1477: variable constflag constflag off
1478:
1479: : activate ( region -- )
1480: \G next code goes to this region
1481: dup to current-region >rdp to tdp ;
1482:
1483: : (switchram)
1484: fixed @ ?EXIT s" rom" T $has? H 0= ?EXIT
1485: ram-dictionary activate ;
1486:
1487: : switchram
1488: constflag @
1489: IF constflag off ELSE (switchram) THEN ;
1490:
1491: : switchrom
1492: fixed @ ?EXIT rom-dictionary activate ;
1493:
1494: : >tempdp ( addr -- )
1495: tdp tempdp-save ! tempdp to tdp tdp ! ;
1496: : tempdp> ( -- )
1497: tempdp-save @ to tdp ;
1498:
1499: : >ram fixed off (switchram) fixed on ;
1500: : >rom fixed off switchrom fixed on ;
1501: : >auto fixed off switchrom ;
1502:
1503:
1504:
1505: \ : romstart dup sromdp ! romdp ! ;
1506: \ : ramstart dup sramdp ! ramdp ! ;
1507:
1508: \ default compilation goes to rom
1509: \ when romable support is off, only the rom switch is used (!!)
1510: >auto
1511:
1512: : there tdp @ ;
1513:
1514: >TARGET
1515:
1516: \ \ Target Memory Handling
1517:
1518: \ Byte ordering and cell size 06oct92py
1519:
1520: : cell+ tcell + ;
1521: : cells tcell<< lshift ;
1522: : chars tchar * ;
1523: : char+ tchar + ;
1524: : floats tfloat * ;
1525:
1526: >CROSS
1527: : cell/ tcell<< rshift ;
1528: >TARGET
1529: 20 CONSTANT bl
1530: \ TNIL Constant NIL
1531:
1532: >CROSS
1533:
1534: bigendian
1535: [IF]
1536: : DS! ( d addr -- ) tcell bounds swap 1-
1537: DO maxbyte ud/mod rot I c! -1 +LOOP 2drop ;
1538: : DS@ ( addr -- d ) >r 0 0 r> tcell bounds
1539: DO maxbyte * swap maxbyte um* rot + swap I c@ + swap LOOP ;
1540: : Sc! ( n addr -- ) >r s>d r> tchar bounds swap 1-
1541: DO maxbyte ud/mod rot I c! -1 +LOOP 2drop ;
1542: : Sc@ ( addr -- n ) >r 0 0 r> tchar bounds
1543: DO maxbyte * swap maxbyte um* rot + swap I c@ + swap LOOP d>s ;
1544: [ELSE]
1545: : DS! ( d addr -- ) tcell bounds
1546: DO maxbyte ud/mod rot I c! LOOP 2drop ;
1547: : DS@ ( addr -- n ) >r 0 0 r> tcell bounds swap 1-
1548: DO maxbyte * swap maxbyte um* rot + swap I c@ + swap -1 +LOOP ;
1549: : Sc! ( n addr -- ) >r s>d r> tchar bounds
1550: DO maxbyte ud/mod rot I c! LOOP 2drop ;
1551: : Sc@ ( addr -- n ) >r 0 0 r> tchar bounds swap 1-
1552: DO maxbyte * swap maxbyte um* rot + swap I c@ + swap -1 +LOOP d>s ;
1553: [THEN]
1554:
1555: : S! ( n addr -- ) >r s>d r> DS! ;
1556: : S@ ( addr -- n ) DS@ d>s ;
1557:
1558: : taddr>region ( taddr -- region | 0 )
1559: \G finds for a target-address the correct region
1560: \G returns 0 if taddr is not in range of a target memory region
1561: region-link
1562: BEGIN @ dup
1563: WHILE dup >r
1564: 0 >rlink - >r
1565: r@ >rlen @
1566: IF dup r@ borders within
1567: IF r> r> drop nip
1568: dup >rtouch @ EXECUTE EXIT
1569: THEN
1570: THEN
1571: r> drop
1572: r>
1573: REPEAT
1574: 2drop 0 ;
1575:
1576: : taddr>region-abort ( taddr -- region | 0 )
1577: \G Same as taddr>region but aborts if taddr is not
1578: \G a valid address in the target address space
1579: dup taddr>region dup 0=
1580: IF drop cr ." Wrong address: " .addr
1581: -1 ABORT" Address out of range!"
1582: THEN nip ;
1583:
1584: : (>regionimage) ( taddr -- 'taddr )
1585: dup
1586: \ find region we want to address
1587: taddr>region-abort
1588: >r
1589: \ calculate offset in region
1590: r@ >rstart @ -
1591: \ add regions real address in our memory
1592: r> >rmem @ + ;
1593:
1594: : (>regionramimage) ( taddr -- 'taddr )
1595: \G same as (>regionimage) but aborts if the region is rom
1596: dup
1597: \ find region we want to address
1598: taddr>region-abort
1599: >r
1600: r@ >rrom @ ABORT" CROSS: region is write-protected!"
1601: \ calculate offset in region
1602: r@ >rstart @ -
1603: \ add regions real address in our memory
1604: r> >rmem @ + ;
1605:
1606: : (>regionbm) ( taddr -- 'taddr bitmaskbaseaddr )
1607: dup
1608: \ find region we want to address
1609: taddr>region-abort
1610: >r
1611: \ calculate offset in region
1612: r@ >rstart @ -
1613: \ add regions real address in our memory
1614: r> >rbm @ ;
1615:
1616: : (>regiontype) ( taddr -- 'taddr )
1617: dup
1618: \ find region we want to address
1619: taddr>region-abort
1620: >r
1621: \ calculate offset in region
1622: r@ >rstart @ - tcell / cells
1623: \ add regions real address in our memory
1624: r> >rtype @ + ;
1625:
1626: \ Bit string manipulation 06oct92py
1627: \ 9may93jaw
1628: CREATE Bittable 80 c, 40 c, 20 c, 10 c, 8 c, 4 c, 2 c, 1 c,
1629: : bits ( n -- n ) chars Bittable + c@ ;
1630:
1631: : >bit ( addr n -- c-addr mask ) 8 /mod rot + swap bits ;
1632: : +bit ( addr n -- ) >bit over c@ or swap c! ;
1633: : -bit ( addr n -- ) >bit invert over c@ and swap c! ;
1634:
1635: : @relbit ( taddr -- f ) (>regionbm) swap cell/ >bit swap c@ and ;
1636:
1637: : (relon) ( taddr -- )
1638: [ [IFDEF] fd-relocation-table ]
1639: s" +" fd-relocation-table write-file throw
1640: dup s>d <# #s #> fd-relocation-table write-line throw
1641: [ [THEN] ]
1642: (>regionbm) swap cell/ +bit ;
1643:
1644: : (reloff) ( taddr -- )
1645: [ [IFDEF] fd-relocation-table ]
1646: s" -" fd-relocation-table write-file throw
1647: dup s>d <# #s #> fd-relocation-table write-line throw
1648: [ [THEN] ]
1649: (>regionbm) swap cell/ -bit ;
1650:
1651: DEFER >image
1652: DEFER >ramimage
1653: DEFER relon
1654: DEFER reloff
1655: DEFER correcter
1656:
1657: T has? relocate H
1658: [IF]
1659: ' (relon) IS relon
1660: ' (reloff) IS reloff
1661: ' (>regionimage) IS >image
1662: ' (>regionimage) IS >ramimage
1663: [ELSE]
1664: ' drop IS relon
1665: ' drop IS reloff
1666: ' (>regionimage) IS >image
1667: ' (>regionimage) IS >ramimage
1668: [THEN]
1669:
1670: : enforce-writeprotection ( -- )
1671: ['] (>regionramimage) IS >ramimage ;
1672:
1673: : relax-writeprotection ( -- )
1674: ['] (>regionimage) IS >ramimage ;
1675:
1676: : writeprotection-relaxed? ( -- )
1677: ['] >ramimage >body @ ['] (>regionimage) = ;
1678:
1679: \ Target memory access 06oct92py
1680:
1681: : align+ ( taddr -- rest )
1682: tcell tuck 1- and - [ tcell 1- ] Literal and ;
1683: : cfalign+ ( taddr -- rest )
1684: \ see kernel.fs:cfaligned
1685: /maxalign tuck 1- and - [ /maxalign 1- ] Literal and ;
1686:
1687: >TARGET
1688: : aligned ( taddr -- ta-addr ) dup align+ + ;
1689: \ assumes cell alignment granularity (as GNU C)
1690:
1691: : cfaligned ( taddr1 -- taddr2 )
1692: \ see kernel.fs
1693: dup cfalign+ + ;
1694:
1695: : @ ( taddr -- w ) >image S@ ;
1696: : ! ( w taddr -- ) >ramimage S! ;
1697: : c@ ( taddr -- char ) >image Sc@ ;
1698: : c! ( char taddr -- ) >ramimage Sc! ;
1699: : 2@ ( taddr -- x1 x2 ) T dup cell+ @ swap @ H ;
1700: : 2! ( x1 x2 taddr -- ) T tuck ! cell+ ! H ;
1701:
1702: \ Target compilation primitives 06oct92py
1703: \ included A! 16may93jaw
1704:
1705: : here ( -- there ) there ;
1706: : allot ( n -- ) tdp +! ;
1707: : , ( w -- ) T here H tcell T allot ! H ;
1708: : c, ( char -- ) T here H tchar T allot c! H ;
1709: : align ( -- ) T here H align+ 0 ?DO bl T c, H tchar +LOOP ;
1710: : cfalign ( -- )
1711: T here H cfalign+ 0 ?DO bl T c, H tchar +LOOP ;
1712:
1713: : >address dup 0>= IF tbyte / THEN ; \ ?? jaw
1714: : A! swap >address swap dup relon T ! H ;
1715: : A, ( w -- ) >address T here H relon T , H ;
1716:
1717: \ high-level ghosts
1718:
1719: >CROSS
1720:
1721: Ghost (do) Ghost (?do) 2drop
1722: Ghost (for) drop
1723: Ghost (loop) Ghost (+loop) 2drop
1724: Ghost (next) drop
1725: Ghost (does>) Ghost (does>1) Ghost (does>2) 2drop drop
1726: Ghost compile, drop
1727: Ghost (.") Ghost (S") Ghost (ABORT") 2drop drop
1728: Ghost (C") Ghost c(abort") Ghost type 2drop drop
1729: Ghost ' drop
1730:
1731: \ user ghosts
1732:
1733: Ghost state drop
1734:
1735: \ \ -------------------- Host/Target copy etc. 29aug01jaw
1736:
1737:
1738: >CROSS
1739:
1740: : TD! >image DS! ;
1741: : TD@ >image DS@ ;
1742:
1743: : th-count ( taddr -- host-addr len )
1744: \G returns host address of target string
1745: assert1( tbyte 1 = )
1746: dup X c@ swap X char+ >image swap ;
1747:
1748: : ht-move ( haddr taddr len -- )
1749: \G moves data from host-addr to destination in target-addr
1750: \G character by character
1751: swap -rot bounds ?DO I c@ over X c! X char+ LOOP drop ;
1752:
1753: 2Variable last-string
1754:
1755: : ht-string, ( addr count -- )
1756: dup there swap last-string 2!
1757: dup T c, H bounds ?DO I c@ T c, H LOOP ;
1758: : ht-mem, ( addr count )
1759: bounds ?DO I c@ T c, H LOOP ;
1760:
1761: >TARGET
1762:
1763: : count dup X c@ swap X char+ swap ;
1764:
1765: : on >r -1 -1 r> TD! ;
1766: : off T 0 swap ! H ;
1767:
1768: : tcmove ( source dest len -- )
1769: \G cmove in target memory
1770: tchar * bounds
1771: ?DO dup T c@ H I T c! H 1+
1772: tchar +LOOP drop ;
1773:
1774: : td, ( d -- )
1775: \G Store a host value as one cell into the target
1776: there tcell X allot TD! ;
1777:
1778: \ \ Load Assembler
1779:
1780: >TARGET
1781: H also Forth definitions
1782:
1783: \ FIXME: should we include the assembler really in the forth
1784: \ dictionary?!?!?!? This conflicts with the existing assembler
1785: \ of the host forth system!!
1786: [IFDEF] asm-include asm-include [THEN] hex
1787:
1788: previous
1789:
1790:
1791: >CROSS
1792:
1793: : (cc) T a, H ; ' (cc) plugin-of colon,
1794: : (prim) T a, H ; ' (prim) plugin-of prim,
1795:
1796: : (cr) >tempdp colon, tempdp> ; ' (cr) plugin-of colon-resolve
1797: : (ar) T ! H ; ' (ar) plugin-of addr-resolve
1798: : (dr) ( ghost res-pnt target-addr addr )
1799: >tempdp drop over
1800: dup >magic @ <do:> =
1801: IF doer,
1802: ELSE dodoes,
1803: THEN
1804: tempdp> ; ' (dr) plugin-of doer-resolve
1805:
1806: : (cm) ( -- addr )
1807: there -1 colon, ; ' (cm) plugin-of colonmark,
1808:
1809: >TARGET
1810: : compile, ( xt -- )
1811: dup xt>ghost >comp @ EXECUTE ;
1812: >CROSS
1813:
1814: \ resolve structure
1815:
1816: : >next ; \ link to next field
1817: : >tag cell+ ; \ indecates type of reference: 0: call, 1: address, 2: doer
1818: : >taddr cell+ cell+ ;
1819: : >ghost 3 cells + ;
1820: : >file 4 cells + ;
1821: : >line 5 cells + ;
1822:
1823: : (refered) ( ghost addr tag -- )
1824: \G creates a reference to ghost at address taddr
1825: >space
1826: rot >link linked
1827: ( taddr tag ) ,
1828: ( taddr ) ,
1829: last-header-ghost @ ,
1830: loadfile ,
1831: sourceline# ,
1832: space>
1833: ;
1834:
1835: : refered ( ghost tag -- )
1836: \G creates a resolve structure
1837: T here aligned H swap (refered)
1838: ;
1839:
1840: : killref ( addr ghost -- )
1841: \G kills a forward reference to ghost at position addr
1842: \G this is used to eleminate a :dovar refence after making a DOES>
1843: dup >magic @ <fwd> <> IF 2drop EXIT THEN
1844: swap >r >link
1845: BEGIN dup @ dup ( addr last this )
1846: WHILE dup >taddr @ r@ =
1847: IF @ over !
1848: ELSE nip THEN
1849: REPEAT rdrop 2drop
1850: ;
1851:
1852: Defer resolve-warning
1853:
1854: : reswarn-test ( ghost res-struct -- ghost res-struct )
1855: over cr ." Resolving " .ghost dup ." in " >ghost @ .ghost ;
1856:
1857: : reswarn-forward ( ghost res-struct -- ghost res-struct )
1858: over warnhead .ghost dup ." is referenced in "
1859: >ghost @ .ghost ;
1860:
1861: \ ' reswarn-test IS resolve-warning
1862:
1863: \ resolve 14oct92py
1864:
1865: : resolve-loop ( ghost resolve-list tcfa -- )
1866: >r
1867: BEGIN dup WHILE
1868: \ dup >tag @ 2 = IF reswarn-forward THEN
1869: resolve-warning
1870: r@ over >taddr @
1871: 2 pick >tag @
1872: CASE 0 OF colon-resolve ENDOF
1873: 1 OF addr-resolve ENDOF
1874: 2 OF doer-resolve ENDOF
1875: ENDCASE
1876: @ \ next list element
1877: REPEAT 2drop rdrop
1878: ;
1879:
1880: \ : resolve-loop ( ghost tcfa -- ghost tcfa )
1881: \ >r dup >link @
1882: \ BEGIN dup WHILE dup T @ H r@ rot T ! H REPEAT drop r> ;
1883:
1884: \ exists 9may93jaw
1885:
1886: : exists ( ghost tcfa -- )
1887: \G print warning and set new target link in ghost
1888: swap exists-warning
1889: >link ! ;
1890:
1891: : colon-resolved ( ghost -- )
1892: \ compiles a call to a colon definition,
1893: \ compile action for >comp field
1894: >link @ colon, ;
1895:
1896: : prim-resolved ( ghost -- )
1897: \ compiles a call to a primitive
1898: >link @ prim, ;
1899:
1900: : (is-forward) ( ghost -- )
1901: colonmark, 0 (refered) ; \ compile space for call
1902: ' (is-forward) IS is-forward
1903:
1904: 0 Value resolved
1905:
1906: : resolve-forward-references ( ghost resolve-list -- )
1907: \ loop through forward referencies
1908: comp-state @ >r Resolving comp-state !
1909: over >link @ resolve-loop
1910: r> comp-state !
1911:
1912: ['] noop IS resolve-warning ;
1913:
1914:
1915: : (resolve) ( ghost tcfa -- ghost resolve-list )
1916: \ check for a valid address, it is a primitive reference
1917: \ otherwise
1918: dup taddr>region 0<> IF
1919: \ define this address in the region address type table
1920: 2dup (>regiontype) define-addr-struct addr-xt-ghost
1921: \ we define new address only if empty
1922: \ this is for not to take over the alias ghost
1923: \ (different ghost, but identical xt)
1924: \ but the very first that really defines it
1925: dup @ 0= IF ! ELSE 2drop THEN
1926: THEN
1927: swap >r
1928: r@ to resolved
1929:
1930: \ r@ >comp @ ['] is-forward =
1931: \ ABORT" >comp action not set on a resolved ghost"
1932:
1933: \ copmile action defaults to colon-resolved
1934: \ if this is not right something must be set before
1935: \ calling resolve
1936: r@ >comp @ ['] is-forward = IF
1937: ['] colon-resolved r@ >comp !
1938: THEN
1939: r@ >link @ swap \ ( list tcfa R: ghost )
1940: \ mark ghost as resolved
1941: r@ >link ! <res> r@ >magic !
1942: r> swap ;
1943:
1944: : resolve ( ghost tcfa -- )
1945: \G resolve referencies to ghost with tcfa
1946: \ is ghost resolved?, second resolve means another
1947: \ definition with the same name
1948: over undefined? 0= IF exists EXIT THEN
1949: (resolve)
1950: ( ghost resolve-list )
1951: resolve-forward-references ;
1952:
1953: : resolve-noforwards ( ghost tcfa -- )
1954: \G Same as resolve but complain if there are any
1955: \G forward references on this ghost
1956: \ is ghost resolved?, second resolve means another
1957: \ definition with the same name
1958: over undefined? 0= IF exists EXIT THEN
1959: (resolve)
1960: IF cr ." No forward references allowed on: " .ghost cr
1961: -1 ABORT" Illegal forward reference"
1962: THEN
1963: drop ;
1964:
1965: \ gexecute ghost, 01nov92py
1966:
1967: : (gexecute) ( ghost -- )
1968: dup >comp @ EXECUTE ;
1969:
1970: : gexecute ( ghost -- )
1971: dup >magic @ <imm> = ABORT" CROSS: gexecute on immediate word"
1972: (gexecute) ;
1973:
1974: : addr, ( ghost -- )
1975: dup forward? IF 1 refered 0 T a, H ELSE >link @ T a, H THEN ;
1976:
1977: \ .unresolved 11may93jaw
1978:
1979: variable ResolveFlag
1980:
1981: \ ?touched 11may93jaw
1982:
1983: : ?touched ( ghost -- flag ) dup forward? swap >link @
1984: 0 <> and ;
1985:
1986: : .forwarddefs ( ghost -- )
1987: ." appeared in:"
1988: >link
1989: BEGIN @ dup
1990: WHILE cr 5 spaces
1991: dup >ghost @ .ghost
1992: ." file " dup >file @ ?dup IF count type ELSE ." CON" THEN
1993: ." line " dup >line @ .dec
1994: REPEAT
1995: drop ;
1996:
1997: : ?resolved ( ghost -- )
1998: dup ?touched
1999: IF ResolveFlag on
2000: dup cr .ghost .forwarddefs
2001: ELSE drop
2002: THEN ;
2003:
2004: : .unresolved ( -- )
2005: ResolveFlag off cr ." Unresolved: "
2006: ghost-list
2007: BEGIN @ dup
2008: WHILE dup ?resolved
2009: REPEAT drop ResolveFlag @
2010: IF
2011: -1 abort" Unresolved words!"
2012: ELSE
2013: ." Nothing!"
2014: THEN
2015: cr ;
2016:
2017: : .stats
2018: base @ >r decimal
2019: cr ." named Headers: " headers-named @ .
2020: r> base ! ;
2021:
2022: >MINIMAL
2023:
2024: : .unresolved .unresolved ;
2025:
2026: >CROSS
2027: \ Header states 12dec92py
2028:
2029: \ : flag! ( 8b -- ) tlast @ dup >r T c@ xor r> c! H ;
2030: X has? f83headerstring bigendian or [IF] 0 [ELSE] tcell 1- [THEN] Constant flag+
2031: : flag! ( w -- ) tlast @ flag+ + dup >r T c@ xor r> c! H ;
2032:
2033: VARIABLE ^imm
2034:
2035: \ !! should be target wordsize specific
2036: $80 constant alias-mask
2037: $40 constant immediate-mask
2038: $20 constant restrict-mask
2039:
2040: >TARGET
2041: : immediate immediate-mask flag!
2042: ^imm @ @ dup <imm> = IF drop EXIT THEN
2043: <res> <> ABORT" CROSS: Cannot immediate a unresolved word"
2044: <imm> ^imm @ ! ;
2045: : restrict restrict-mask flag! ;
2046:
2047: : isdoer
2048: \G define a forth word as doer, this makes obviously only sence on
2049: \G forth processors such as the PSC1000
2050: <do:> last-header-ghost @ >magic ! ;
2051: >CROSS
2052:
2053: \ Target Header Creation 01nov92py
2054:
2055: : ht-lstring, ( addr count -- )
2056: dup T , H bounds ?DO I c@ T c, H LOOP ;
2057:
2058: >TARGET
2059: X has? f83headerstring [IF]
2060: : name, ( "name" -- ) bl word count ht-string, X cfalign ;
2061: [ELSE]
2062: : name, ( "name" -- ) bl word count ht-lstring, X cfalign ;
2063: [THEN]
2064: : view, ( -- ) ( dummy ) ;
2065: >CROSS
2066:
2067: \ Target Document Creation (goes to crossdoc.fd) 05jul95py
2068:
2069: s" ./doc/crossdoc.fd" r/w create-file throw value doc-file-id
2070: \ contains the file-id of the documentation file
2071:
2072: : T-\G ( -- )
2073: source >in @ /string doc-file-id write-line throw
2074: postpone \ ;
2075:
2076: Variable to-doc to-doc on
2077:
2078: : cross-doc-entry ( -- )
2079: to-doc @ tlast @ 0<> and \ not an anonymous (i.e. noname) header
2080: IF
2081: s" " doc-file-id write-line throw
2082: s" make-doc " doc-file-id write-file throw
2083:
2084: Last-Header-Ghost @ >ghostname doc-file-id write-file throw
2085: >in @
2086: [char] ( parse 2drop
2087: [char] ) parse doc-file-id write-file throw
2088: s" )" doc-file-id write-file throw
2089: [char] \ parse 2drop
2090: T-\G
2091: >in !
2092: THEN ;
2093:
2094: \ Target TAGS creation
2095:
2096: s" kernel.TAGS" r/w create-file throw value tag-file-id
2097: s" kernel.tags" r/w create-file throw value vi-tag-file-id
2098: \ contains the file-id of the tags file
2099:
2100: Create tag-beg 1 c, 7F c,
2101: Create tag-end 1 c, 01 c,
2102: Create tag-bof 1 c, 0C c,
2103: Create tag-tab 1 c, 09 c,
2104:
2105: 2variable last-loadfilename 0 0 last-loadfilename 2!
2106:
2107: : put-load-file-name ( -- )
2108: sourcefilename last-loadfilename 2@ d<>
2109: IF
2110: tag-bof count tag-file-id write-line throw
2111: sourcefilename 2dup
2112: tag-file-id write-file throw
2113: last-loadfilename 2!
2114: s" ,0" tag-file-id write-line throw
2115: THEN ;
2116:
2117: : cross-gnu-tag-entry ( -- )
2118: tlast @ 0<> \ not an anonymous (i.e. noname) header
2119: IF
2120: put-load-file-name
2121: source >in @ min tag-file-id write-file throw
2122: tag-beg count tag-file-id write-file throw
2123: Last-Header-Ghost @ >ghostname tag-file-id write-file throw
2124: tag-end count tag-file-id write-file throw
2125: base @ decimal sourceline# 0 <# #s #> tag-file-id write-file throw
2126: \ >in @ 0 <# #s [char] , hold #> tag-file-id write-line throw
2127: s" ,0" tag-file-id write-line throw
2128: base !
2129: THEN ;
2130:
2131: : cross-vi-tag-entry ( -- )
2132: tlast @ 0<> \ not an anonymous (i.e. noname) header
2133: IF
2134: sourcefilename vi-tag-file-id write-file throw
2135: tag-tab count vi-tag-file-id write-file throw
2136: Last-Header-Ghost @ >ghostname vi-tag-file-id write-file throw
2137: tag-tab count vi-tag-file-id write-file throw
2138: s" /^" vi-tag-file-id write-file throw
2139: source vi-tag-file-id write-file throw
2140: s" $/" vi-tag-file-id write-line throw
2141: THEN ;
2142:
2143: : cross-tag-entry ( -- )
2144: cross-gnu-tag-entry
2145: cross-vi-tag-entry ;
2146:
2147: \ Check for words
2148:
2149: Defer skip? ' false IS skip?
2150:
2151: : skipdef ( "name" -- )
2152: \G skip definition of an undefined word in undef-words and
2153: \G all-words mode
2154: Ghost dup forward?
2155: IF >magic <skip> swap !
2156: ELSE drop THEN ;
2157:
2158: : tdefined? ( "name" -- flag )
2159: Ghost undefined? 0= ;
2160:
2161: : defined2? ( "name" -- flag )
2162: \G return true for anything else than forward, even for <skip>
2163: \G that's what we want
2164: Ghost forward? 0= ;
2165:
2166: : forced? ( "name" -- flag )
2167: \G return ture if it is a foreced skip with defskip
2168: Ghost >magic @ <skip> = ;
2169:
2170: : needed? ( -- flag ) \ name
2171: \G returns a false flag when
2172: \G a word is not defined
2173: \G a forward reference exists
2174: \G so the definition is not skipped!
2175: bl word gfind
2176: IF dup undefined?
2177: nip
2178: 0=
2179: ELSE drop true THEN ;
2180:
2181: : doer? ( "name" -- 0 | addr ) \ name
2182: Ghost dup >magic @ <do:> =
2183: IF >link @ ELSE drop 0 THEN ;
2184:
2185: : skip-defs ( -- )
2186: BEGIN refill WHILE source -trailing nip 0= UNTIL THEN ;
2187:
2188: \ Target header creation
2189:
2190: Variable NoHeaderFlag
2191: NoHeaderFlag off
2192:
2193: : 0.r ( n1 n2 -- )
2194: base @ >r hex
2195: 0 swap <# 0 ?DO # LOOP #> type
2196: r> base ! ;
2197:
2198: : .sym ( adr len -- )
2199: \G escapes / and \ to produce sed output
2200: bounds
2201: DO I c@ dup
2202: CASE [char] / OF drop ." \/" ENDOF
2203: [char] \ OF drop ." \\" ENDOF
2204: dup OF emit ENDOF
2205: ENDCASE
2206: LOOP ;
2207:
2208: Defer setup-execution-semantics ' noop IS setup-execution-semantics
2209: 0 Value lastghost
2210:
2211: : (THeader ( "name" -- ghost )
2212: \ >in @ bl word count type 2 spaces >in !
2213: \ wordheaders will always be compiled to rom
2214: switchrom
2215: \ build header in target
2216: NoHeaderFlag @
2217: IF NoHeaderFlag off
2218: ELSE
2219: T align H view,
2220: tlast @ dup 0> IF tcell - THEN T A, H there tlast !
2221: 1 headers-named +! \ Statistic
2222: >in @ T name, H >in !
2223: THEN
2224: T cfalign here H tlastcfa !
2225: \ Old Symbol table sed-script
2226: \ >in @ cr ." sym:s/CFA=" there 4 0.r ." /" bl word count .sym ." /g" cr >in !
2227: HeaderGhost
2228: \ output symbol table to extra file
2229: dup >ghostname there symentry
2230: dup Last-Header-Ghost ! dup to lastghost
2231: dup >magic ^imm ! \ a pointer for immediate
2232: alias-mask flag!
2233: cross-doc-entry cross-tag-entry
2234: setup-execution-semantics
2235: ;
2236:
2237: \ this is the resolver information from ":"
2238: \ resolving is done by ";"
2239: Variable ;Resolve 1 cells allot
2240:
2241: : hereresolve ( ghost -- )
2242: there resolve 0 ;Resolve ! ;
2243:
2244: : Theader ( "name" -- ghost )
2245: (THeader dup hereresolve ;
2246:
2247: Variable aprim-nr -20 aprim-nr !
2248:
2249: : copy-execution-semantics ( ghost-from ghost-dest -- )
2250: >r
2251: dup >exec @ r@ >exec !
2252: dup >comp @ r@ >comp !
2253: dup >exec2 @ r@ >exec2 !
2254: dup >exec-compile @ r@ >exec-compile !
2255: dup >ghost-xt @ r@ >ghost-xt !
2256: dup >created @ r@ >created !
2257: rdrop drop ;
2258:
2259: >TARGET
2260:
2261: : Alias ( cfa -- ) \ name
2262: >in @ skip? IF 2drop EXIT THEN >in !
2263: (THeader ( S xt ghost )
2264: 2dup swap xt>ghost swap copy-execution-semantics
2265: over resolve T A, H alias-mask flag! ;
2266:
2267: Variable last-prim-ghost
2268: 0 last-prim-ghost !
2269:
2270: : asmprimname, ( ghost -- : name )
2271: dup last-prim-ghost !
2272: >r
2273: here bl word count string, r@ >asm-name !
2274: aprim-nr @ r> >asm-dummyaddr ! ;
2275:
2276: Defer setup-prim-semantics
2277:
2278: : mapprim ( "forthname" "asmlabel" -- )
2279: THeader -1 aprim-nr +! aprim-nr @ T A, H
2280: asmprimname,
2281: setup-prim-semantics ;
2282:
2283: : mapprim: ( "forthname" "asmlabel" -- )
2284: -1 aprim-nr +! aprim-nr @
2285: Ghost tuck swap resolve-noforwards <do:> swap tuck >magic !
2286: asmprimname, ;
2287:
2288: : Doer: ( cfa -- ) \ name
2289: >in @ skip? IF 2drop EXIT THEN >in !
2290: dup 0< s" prims" T $has? H 0= and
2291: IF
2292: .sourcepos ." needs doer: " >in @ bl word count type >in ! cr
2293: THEN
2294: Ghost
2295: tuck swap resolve-noforwards <do:> swap >magic ! ;
2296:
2297: Variable prim#
2298: : first-primitive ( n -- ) prim# ! ;
2299: : group 0 word drop prim# @ 1- -$200 and prim# ! ;
2300: : groupadd ( n -- ) drop ;
2301: : Primitive ( -- ) \ name
2302: >in @ skip? IF drop EXIT THEN >in !
2303: s" prims" T $has? H 0=
2304: IF
2305: .sourcepos ." needs prim: " >in @ bl word count type >in ! cr
2306: THEN
2307: prim# @ (THeader ( S xt ghost )
2308: ['] prim-resolved over >comp !
2309: dup >ghost-flags <primitive> set-flag
2310: over resolve-noforwards T A, H alias-mask flag!
2311: -1 prim# +! ;
2312: >CROSS
2313:
2314: \ Conditionals and Comments 11may93jaw
2315:
2316: \G saves the existing cond action, this is used for redefining in
2317: \G instant
2318: Variable cond-xt-old
2319:
2320: : cond-target ( -- )
2321: \G Compiles semantic of redefined cond into new one
2322: cond-xt-old @ compile, ; immediate restrict
2323:
2324: : ;Cond
2325: postpone ;
2326: swap ! ; immediate
2327:
2328: : Cond: ( "name" -- )
2329: \g defines a conditional or another word that must
2330: \g be executed directly while compiling
2331: \g these words have no interpretative semantics by default
2332: Ghost
2333: >exec-compile
2334: dup @ cond-xt-old !
2335: :NONAME ;
2336:
2337:
2338: : Comment ( -- )
2339: >in @ Ghost swap >in ! ' swap
2340: 2dup >exec-compile ! >exec ! ;
2341:
2342: Comment ( Comment \
2343:
2344: \ compile 10may93jaw
2345:
2346: : compile ( "name" -- ) \ name
2347: findghost
2348: dup >exec-compile @ ?dup
2349: IF nip compile,
2350: ELSE postpone literal postpone gexecute THEN ; immediate restrict
2351:
2352: >TARGET
2353:
2354: : ' ( -- xt )
2355: \G returns the target-cfa of a ghost
2356: bl word gfind 0= ABORT" CROSS: Ghost don't exists"
2357: g>xt ;
2358:
2359: \ FIXME: this works for the current use cases, but is not
2360: \ in all cases correct ;-)
2361: : comp' X ' 0 ;
2362:
2363: Cond: ['] T ' H alit, ;Cond
2364:
2365: >CROSS
2366:
2367: : [T']
2368: \ returns the target-cfa of a ghost, or compiles it as literal
2369: postpone [G']
2370: state @ IF postpone g>xt ELSE g>xt THEN ; immediate
2371:
2372: \ \ threading modell 13dec92py
2373: \ modularized 14jun97jaw
2374:
2375: T 2 cells H Value xt>body
2376:
2377: : (>body) ( cfa -- pfa )
2378: xt>body + ; ' (>body) plugin-of t>body
2379:
2380: : fillcfa ( usedcells -- )
2381: T cells H xt>body swap -
2382: assert1( dup 0 >= )
2383: 0 ?DO 0 X c, tchar +LOOP ;
2384:
2385: : (doer,) ( ghost -- )
2386: addr, 1 fillcfa ; ' (doer,) plugin-of doer,
2387:
2388: : (docol,) ( -- ) [G'] :docol (doer,) ; ' (docol,) plugin-of docol,
2389:
2390: ' NOOP plugin-of ca>native
2391:
2392: : (doprim,) ( -- )
2393: there xt>body + ca>native T a, H 1 fillcfa ; ' (doprim,) plugin-of doprim,
2394:
2395: : (doeshandler,) ( -- )
2396: T cfalign H [G'] :doesjump addr, T 0 , H ; ' (doeshandler,) plugin-of doeshandler,
2397:
2398: : (dodoes,) ( does-action-ghost -- )
2399: ]comp [G'] :dodoes addr, comp[
2400: addr,
2401: \ the relocator in the c engine, does not like the
2402: \ does-address to marked for relocation
2403: [ T e? ec H 0= [IF] ] T here H tcell - reloff [ [THEN] ]
2404: 2 fillcfa ; ' (dodoes,) plugin-of dodoes,
2405:
2406: : (dlit,) ( n -- ) compile lit td, ; ' (dlit,) plugin-of dlit,
2407:
2408: : (lit,) ( n -- ) s>d dlit, ; ' (lit,) plugin-of lit,
2409:
2410: \ if we dont produce relocatable code alit, defaults to lit, jaw
2411: \ this is just for convenience, so we don't have to define alit,
2412: \ seperately for embedded systems....
2413: T has? relocate H
2414: [IF]
2415: : (alit,) ( n -- ) compile lit T a, H ; ' (alit,) plugin-of alit,
2416: [ELSE]
2417: : (alit,) ( n -- ) lit, ; ' (alit,) plugin-of alit,
2418: [THEN]
2419:
2420: : (fini,) compile ;s ; ' (fini,) plugin-of fini,
2421:
2422: [IFUNDEF] (code)
2423: Defer (code)
2424: Defer (end-code)
2425: [THEN]
2426:
2427: >TARGET
2428: : Code
2429: defempty?
2430: (THeader ( ghost )
2431: ['] prim-resolved over >comp !
2432: there resolve-noforwards
2433:
2434: [ T e? prims H 0= [IF] T e? ITC H [ELSE] true [THEN] ] [IF]
2435: doprim,
2436: [THEN]
2437: depth (code) ;
2438:
2439: \ FIXME : no-compile -1 ABORT" this ghost is not for compilation" ;
2440:
2441: : Code:
2442: defempty?
2443: Ghost >r
2444: r@ >ghostname there symentry
2445: r@ there ca>native resolve-noforwards
2446: <do:> r@ >magic !
2447: r> drop
2448: depth (code) ;
2449:
2450: : end-code
2451: (end-code)
2452: depth ?dup IF 1- <> ABORT" CROSS: Stack changed"
2453: ELSE true ABORT" CROSS: Stack empty" THEN
2454: ;
2455:
2456: >CROSS
2457:
2458: \ tLiteral 12dec92py
2459:
2460: >TARGET
2461: Cond: \G T-\G ;Cond
2462:
2463: Cond: Literal ( n -- ) lit, ;Cond
2464: Cond: ALiteral ( n -- ) alit, ;Cond
2465:
2466: : Char ( "<char>" -- ) bl word char+ c@ ;
2467: Cond: [Char] ( "<char>" -- ) Char lit, ;Cond
2468:
2469: : (x#) ( adr len base -- )
2470: base @ >r base ! 0 0 name >number 2drop drop r> base ! ;
2471:
2472: : d# $0a (x#) ;
2473: : h# $010 (x#) ;
2474:
2475: Cond: d# $0a (x#) lit, ;Cond
2476: Cond: h# $010 (x#) lit, ;Cond
2477:
2478: tchar 1 = [IF]
2479: Cond: chars ;Cond
2480: [THEN]
2481:
2482: \ some special literals 27jan97jaw
2483:
2484: Cond: MAXU
2485: -1 s>d dlit,
2486: ;Cond
2487:
2488: tcell 2 = tcell 4 = or tcell 8 = or 0=
2489: [IF]
2490: .( Warning: MINI and MAXI may not work with this host) cr
2491: [THEN]
2492:
2493: Cond: MINI
2494: tcell 2 = IF $8000 ELSE $80000000 THEN 0
2495: tcell 8 = IF swap THEN dlit,
2496: ;Cond
2497:
2498: Cond: MAXI
2499: tcell 2 = IF $7fff ELSE $7fffffff THEN 0
2500: tcell 8 = IF drop -1 swap THEN dlit,
2501: ;Cond
2502:
2503: >CROSS
2504:
2505: \ Target compiling loop 12dec92py
2506: \ ">tib trick thrown out 10may93jaw
2507: \ number? defined at the top 11may93jaw
2508: \ replaced >in by save-input
2509:
2510: : discard 0 ?DO drop LOOP ;
2511:
2512: \ compiled word might leave items on stack!
2513: : tcom ( x1 .. xn n name -- )
2514: \ dup count type space
2515: gfind
2516: IF >r ( discard saved input state ) discard r>
2517: dup >exec-compile @ ?dup
2518: IF nip execute-exec-compile ELSE gexecute THEN
2519: EXIT
2520: THEN
2521: number? dup
2522: IF 0> IF swap lit, THEN lit, discard
2523: ELSE 2drop restore-input throw Ghost gexecute THEN ;
2524:
2525: \ : ; DOES> 13dec92py
2526: \ ] 9may93py/jaw
2527:
2528: >CROSS
2529:
2530: : compiling-state ( -- )
2531: \G set states to compililng
2532: Compiling comp-state !
2533: \ if we have a state in target, change it with the compile state
2534: [G'] state dup undefined? 0=
2535: IF >ghost-xt @ execute X on ELSE drop THEN ;
2536:
2537: : interpreting-state ( -- )
2538: \G set states to interpreting
2539: \ if target has a state variable, change it according to our state
2540: [G'] state dup undefined? 0=
2541: IF >ghost-xt @ execute X off ELSE drop THEN
2542: Interpreting comp-state ! ;
2543:
2544: >TARGET
2545:
2546: : ]
2547: compiling-state
2548: BEGIN
2549: BEGIN save-input bl word
2550: dup c@ 0= WHILE drop discard refill 0=
2551: ABORT" CROSS: End of file while target compiling"
2552: REPEAT
2553: tcom
2554: compiling? 0=
2555: UNTIL ;
2556:
2557: \ by the way: defining a second interpreter (a compiler-)loop
2558: \ is not allowed if a system should be ans conform
2559:
2560: : (:) ( ghost -- )
2561: \ common factor of : and :noname. Prepare ;Resolve and start definition
2562: ;Resolve ! there ;Resolve cell+ !
2563: docol, ]comp colon-start depth T ] H ;
2564:
2565: : : ( -- colon-sys ) \ Name
2566: defempty?
2567: constflag off \ don't let this flag work over colon defs
2568: \ just to go sure nothing unwanted happens
2569: >in @ skip? IF drop skip-defs EXIT THEN >in !
2570: (THeader (:) ;
2571:
2572: : :noname ( -- colon-sys )
2573: X cfalign there
2574: \ define a nameless ghost
2575: here ghostheader dup last-header-ghost ! dup to lastghost
2576: (:) ;
2577:
2578: Cond: EXIT ( -- ) compile ;S ;Cond
2579:
2580: Cond: ?EXIT ( -- ) 1 abort" CROSS: using ?exit" ;Cond
2581:
2582: >CROSS
2583: : LastXT ;Resolve @ 0= abort" CROSS: no definition for LastXT"
2584: ;Resolve cell+ @ ;
2585:
2586: >TARGET
2587:
2588: Cond: recurse ( -- ) Last-Header-Ghost @ gexecute ;Cond
2589:
2590: Cond: ; ( -- )
2591: depth ?dup
2592: IF 1- <> ABORT" CROSS: Stack changed"
2593: ELSE true ABORT" CROSS: Stack empty"
2594: THEN
2595: colon-end
2596: fini,
2597: comp[
2598: ;Resolve @
2599: IF ['] colon-resolved ;Resolve @ >comp !
2600: ;Resolve @ ;Resolve cell+ @ resolve
2601: THEN
2602: interpreting-state
2603: ;Cond
2604:
2605: Cond: [ ( -- ) interpreting-state ;Cond
2606:
2607: >CROSS
2608:
2609: 0 Value created
2610:
2611: : !does ( does-action -- )
2612: tlastcfa @ [G'] :dovar killref
2613: >space here >r ghostheader space>
2614: ['] colon-resolved r@ >comp !
2615: r@ created >do:ghost ! r@ swap resolve
2616: r> tlastcfa @ >tempdp dodoes, tempdp> ;
2617:
2618: Defer instant-interpret-does>-hook ' noop IS instant-interpret-does>-hook
2619:
2620: T has? peephole H [IF]
2621: : does-resolved ( ghost -- )
2622: compile does-exec g>xt T a, H ;
2623: [ELSE]
2624: : does-resolved ( ghost -- )
2625: g>xt T a, H ;
2626: [THEN]
2627:
2628: : resolve-does>-part ( -- )
2629: \ resolve words made by builders
2630: Last-Header-Ghost @ >do:ghost @ ?dup
2631: IF there resolve THEN ;
2632:
2633: >TARGET
2634: Cond: DOES>
2635: T here 5 cells H + alit, compile (does>2) compile ;s
2636: doeshandler, resolve-does>-part
2637: ;Cond
2638:
2639: : DOES>
2640: ['] does-resolved created >comp !
2641: switchrom doeshandler, T here H !does
2642: instant-interpret-does>-hook
2643: depth T ] H ;
2644:
2645: >CROSS
2646: \ Creation 01nov92py
2647:
2648: \ Builder 11may93jaw
2649:
2650: 0 Value built
2651:
2652: : Builder ( Create-xt do-ghost "name" -- )
2653: \ builds up a builder in current vocabulary
2654: \ create-xt is executed when word is interpreted
2655: \ do:-xt is executed when the created word from builder is executed
2656: \ for do:-xt an additional entry after the normal ghost-entrys is used
2657:
2658: ghost to built
2659: built >created @ 0= IF
2660: built >created on
2661: THEN ;
2662:
2663: : gdoes, ( ghost -- )
2664: \ makes the codefield for a word that is built
2665: >do:ghost @ dup undefined? 0=
2666: IF
2667: dup >magic @ <do:> =
2668: IF doer,
2669: ELSE dodoes,
2670: THEN
2671: EXIT
2672: THEN
2673: \ compile :dodoes gexecute
2674: \ T here H tcell - reloff
2675: 2 refered
2676: 0 fillcfa
2677: ;
2678:
2679: : takeover-x-semantics ( S constructor-ghost new-ghost -- )
2680: \g stores execution semantic and compilation semantic in the built word
2681: swap >do:ghost @ 2dup swap >do:ghost !
2682: \ we use the >exec2 field for the semantic of a created word,
2683: \ using exec or exec2 makes no difference for normal cross-compilation
2684: \ but is usefull for instant where the exec field is already
2685: \ defined (e.g. Vocabularies)
2686: 2dup >exec @ swap >exec2 !
2687: >comp @ swap >comp ! ;
2688:
2689: 0 Value createhere
2690:
2691: : create-resolve ( -- )
2692: created createhere resolve 0 ;Resolve ! ;
2693: : create-resolve-immediate ( -- )
2694: create-resolve T immediate H ;
2695:
2696: : TCreate ( <name> -- )
2697: create-forward-warn
2698: IF ['] reswarn-forward IS resolve-warning THEN
2699: executed-ghost @ (Theader
2700: dup >created on dup to created
2701: 2dup takeover-x-semantics
2702: there to createhere drop gdoes, ;
2703:
2704: : RTCreate ( <name> -- )
2705: \ creates a new word with code-field in ram
2706: create-forward-warn
2707: IF ['] reswarn-forward IS resolve-warning THEN
2708: \ make Alias
2709: executed-ghost @ (THeader
2710: dup >created on dup to created
2711: 2dup takeover-x-semantics
2712: there 0 T a, H alias-mask flag!
2713: \ store poiter to code-field
2714: switchram T cfalign H
2715: there swap T ! H
2716: there tlastcfa !
2717: there to createhere drop gdoes, ;
2718:
2719: : Build: ( -- [xt] [colon-sys] )
2720: :noname postpone TCreate ;
2721:
2722: : BuildSmart: ( -- [xt] [colon-sys] )
2723: :noname
2724: [ T has? rom H [IF] ]
2725: postpone RTCreate
2726: [ [ELSE] ]
2727: postpone TCreate
2728: [ [THEN] ] ;
2729:
2730: : ;Build
2731: postpone create-resolve postpone ; built >exec ! ; immediate
2732:
2733: : ;Build-immediate
2734: postpone create-resolve-immediate
2735: postpone ; built >exec ! ; immediate
2736:
2737: : gdoes> ( ghost -- addr flag )
2738: executed-ghost @ g>body ;
2739:
2740: \ DO: ;DO 11may93jaw
2741:
2742: : do:ghost! ( ghost -- ) built >do:ghost ! ;
2743: : doexec! ( xt -- ) built >do:ghost @ >exec ! ;
2744:
2745: : DO: ( -- [xt] [colon-sys] )
2746: here ghostheader do:ghost!
2747: :noname postpone gdoes> ;
2748:
2749: : by: ( -- [xt] [colon-sys] ) \ name
2750: Ghost do:ghost!
2751: :noname postpone gdoes> ;
2752:
2753: : ;DO ( [xt] [colon-sys] -- )
2754: postpone ; doexec! ; immediate
2755:
2756: : by ( -- ) \ Name
2757: Ghost >do:ghost @ do:ghost! ;
2758:
2759: : compile: ( --[xt] [colon-sys] )
2760: \G defines a compile time action for created words
2761: \G by this builder
2762: :noname ;
2763:
2764: : ;compile ( [xt] [colon-sys] -- )
2765: postpone ; built >do:ghost @ >comp ! ; immediate
2766:
2767: \ Variables and Constants 05dec92py
2768:
2769: Builder (Constant)
2770: Build: ( n -- ) ;Build
2771: by: :docon ( target-body-addr -- n ) T @ H ;DO
2772:
2773: Builder Constant
2774: Build: ( n -- ) T , H ;Build
2775: by (Constant)
2776:
2777: Builder AConstant
2778: Build: ( n -- ) T A, H ;Build
2779: by (Constant)
2780:
2781: Builder 2Constant
2782: Build: ( d -- ) T , , H ;Build
2783: DO: ( ghost -- d ) T dup cell+ @ swap @ H ;DO
2784:
2785: Builder Create
2786: BuildSmart: ;Build
2787: by: :dovar ( target-body-addr -- addr ) ;DO
2788:
2789: Builder Variable
2790: T has? rom H [IF]
2791: Build: ( -- ) T here 0 A, H switchram T align here swap ! 0 , H ( switchrom ) ;Build
2792: by (Constant)
2793: [ELSE]
2794: Build: T 0 , H ;Build
2795: by Create
2796: [THEN]
2797:
2798: Builder 2Variable
2799: T has? rom H [IF]
2800: Build: ( -- ) T here 0 A, H switchram T align here swap ! 0 , 0 , H ( switchrom ) ;Build
2801: by (Constant)
2802: [ELSE]
2803: Build: T 0 , 0 , H ;Build
2804: by Create
2805: [THEN]
2806:
2807: Builder AVariable
2808: T has? rom H [IF]
2809: Build: ( -- ) T here 0 A, H switchram T align here swap ! 0 A, H ( switchrom ) ;Build
2810: by (Constant)
2811: [ELSE]
2812: Build: T 0 A, H ;Build
2813: by Create
2814: [THEN]
2815:
2816: \ User variables 04may94py
2817:
2818: : tup@ user-region >rstart @ ;
2819:
2820: \ Variable tup 0 tup !
2821: \ Variable tudp 0 tudp !
2822:
2823: : u, ( n -- udp )
2824: current-region >r user-region activate .regions
2825: X here swap X , tup@ - .regions
2826: r> activate ;
2827:
2828: : au, ( n -- udp )
2829: current-region >r user-region activate
2830: X here swap X a, tup@ -
2831: r> activate ;
2832:
2833: T has? no-userspace H [IF]
2834:
2835: : buildby
2836: ghost >exec @ built >exec ! ;
2837:
2838: Builder User
2839: buildby Variable
2840: by Variable
2841:
2842: Builder 2User
2843: buildby 2Variable
2844: by 2Variable
2845:
2846: Builder AUser
2847: buildby AVariable
2848: by AVariable
2849:
2850: [ELSE]
2851:
2852: Builder User
2853: Build: 0 u, X , ;Build
2854: by: :douser ( ghost -- up-addr ) X @ tup@ + ;DO
2855:
2856: Builder 2User
2857: Build: 0 u, X , 0 u, drop ;Build
2858: by User
2859:
2860: Builder AUser
2861: Build: 0 au, X , ;Build
2862: by User
2863:
2864: [THEN]
2865:
2866: Builder (Value)
2867: Build: ( n -- ) ;Build
2868: by: :docon ( target-body-addr -- n ) T @ H ;DO
2869:
2870: Builder Value
2871: BuildSmart: T , H ;Build
2872: by (Value)
2873:
2874: Builder AValue
2875: BuildSmart: T A, H ;Build
2876: by (Value)
2877:
2878: Defer texecute
2879:
2880: Builder Defer
2881: BuildSmart: ( -- ) [T'] noop T A, H ;Build
2882: by: :dodefer ( ghost -- ) X @ texecute ;DO
2883:
2884: Builder interpret/compile:
2885: Build: ( inter comp -- ) swap T A, A, H ;Build-immediate
2886: DO: ( ghost -- ) ABORT" CROSS: Don't execute" ;DO
2887:
2888: \ Sturctures 23feb95py
2889:
2890: : nalign ( addr1 n -- addr2 )
2891: \ addr2 is the aligned version of addr1 wrt the alignment size n
2892: 1- tuck + swap invert and ;
2893:
2894:
2895: Builder (Field)
2896: Build: ;Build
2897: by: :dofield T @ H + ;DO
2898:
2899: Builder Field
2900: Build: ( align1 offset1 align size "name" -- align2 offset2 )
2901: rot dup T , H ( align1 align size offset1 )
2902: + >r nalign r> ;Build
2903: by (Field)
2904:
2905: >TARGET
2906: : struct T 1 chars 0 H ;
2907: : end-struct T 2Constant H ;
2908:
2909: : cell% ( n -- size align )
2910: T 1 cells H dup ;
2911: >CROSS
2912:
2913: \ Input-Methods 01py
2914:
2915: Builder input-method
2916: Build: ( m v -- m' v ) dup T , cell+ H ;Build
2917: DO: abort" Not in cross mode" ;DO
2918:
2919: Builder input-var
2920: Build: ( m v size -- m v' ) over T , H + ;Build
2921: DO: abort" Not in cross mode" ;DO
2922:
2923: \ Peephole optimization 05sep01jaw
2924:
2925: \ this section defines different compilation
2926: \ actions for created words
2927: \ this will help the peephole optimizer
2928: \ I (jaw) took this from bernds latest cross-compiler
2929: \ changes but seperated it from the original
2930: \ Builder words. The final plan is to put this
2931: \ into a seperate file, together with the peephole
2932: \ optimizer for cross
2933:
2934:
2935: T has? peephole H [IF]
2936:
2937: \ .( loading peephole optimization) cr
2938:
2939: >CROSS
2940:
2941: : (callc) compile call T >body a, H ; ' (callc) plugin-of colon,
2942: : (callcm) T here 0 a, 0 a, H ; ' (callcm) plugin-of colonmark,
2943: : (call-res) >tempdp resolved gexecute tempdp> drop ;
2944: ' (call-res) plugin-of colon-resolve
2945: : (pprim) dup 0< IF $4000 - ELSE
2946: cr ." wrong usage of (prim) "
2947: dup gdiscover IF .ghost ELSE . THEN cr -1 throw THEN
2948: T a, H ; ' (pprim) plugin-of prim,
2949:
2950: \ if we want this, we have to spilt aconstant
2951: \ and constant!!
2952: \ Builder (Constant)
2953: \ compile: g>body X @ lit, ;compile
2954:
2955: Builder (Constant)
2956: compile: g>body compile lit@ T a, H ;compile
2957:
2958: Builder (Value)
2959: compile: g>body compile lit@ T a, H ;compile
2960:
2961: \ this changes also Variable, AVariable and 2Variable
2962: Builder Create
2963: compile: g>body alit, ;compile
2964:
2965: Builder User
2966: compile: g>body compile useraddr T @ , H ;compile
2967:
2968: Builder Defer
2969: compile: g>body compile lit-perform T A, H ;compile
2970:
2971: Builder (Field)
2972: compile: g>body T @ H compile lit+ T , H ;compile
2973:
2974: Builder interpret/compile:
2975: compile: does-resolved ;compile
2976:
2977: Builder input-method
2978: compile: does-resolved ;compile
2979:
2980: Builder input-var
2981: compile: does-resolved ;compile
2982:
2983: [THEN]
2984:
2985: \ structural conditionals 17dec92py
2986:
2987: >CROSS
2988: : (ncontrols?) ( n -- )
2989: \g We expect n open control structures
2990: depth over u<=
2991: ABORT" CROSS: unstructured, stack underflow"
2992: 0 ?DO I pick 0=
2993: ABORT" CROSS: unstructured"
2994: LOOP ; ' (ncontrols?) plugin-of ncontrols?
2995:
2996: \ : ?struc ( flag -- ) ABORT" CROSS: unstructured " ;
2997: \ : sys? ( sys -- sys ) dup 0= ?struc ;
2998:
2999: : >mark ( -- sys ) T here ( dup ." M" hex. ) 0 , H ;
3000:
3001: X has? abranch [IF]
3002: : branchoffset ( src dest -- ) drop ;
3003: : offset, ( n -- ) X A, ;
3004: [ELSE]
3005: : branchoffset ( src dest -- ) - tchar / ; \ ?? jaw
3006: : offset, ( n -- ) X , ;
3007: [THEN]
3008:
3009: :noname compile branch X here branchoffset offset, ;
3010: IS branch, ( target-addr -- )
3011: :noname compile ?branch X here branchoffset offset, ;
3012: IS ?branch, ( target-addr -- )
3013: :noname compile branch T here 0 H offset, ;
3014: IS branchmark, ( -- branchtoken )
3015: :noname compile ?branch T here 0 H offset, ;
3016: IS ?branchmark, ( -- branchtoken )
3017: :noname T here 0 H offset, ;
3018: IS ?domark, ( -- branchtoken )
3019: :noname dup X @ ?struc X here over branchoffset swap X ! ;
3020: IS branchtoresolve, ( branchtoken -- )
3021: :noname branchto, X here ;
3022: IS branchtomark, ( -- target-addr )
3023:
3024: >TARGET
3025:
3026: \ Structural Conditionals 12dec92py
3027:
3028: \ CLEANUP Cond: BUT sys? swap ;Cond
3029: \ CLEANUP Cond: YET sys? dup ;Cond
3030:
3031: >CROSS
3032:
3033: Variable tleavings 0 tleavings !
3034:
3035: : (done) ( do-addr -- )
3036: \G resolve branches of leave and ?leave and ?do
3037: \G do-addr is the address of the beginning of our
3038: \G loop so we can take care of nested loops
3039: tleavings @
3040: BEGIN dup
3041: WHILE
3042: >r dup r@ cell+ @ \ address of branch
3043: u> 0= \ lower than DO?
3044: WHILE
3045: r@ 2 cells + @ \ branch token
3046: branchtoresolve,
3047: r@ @ r> free throw
3048: REPEAT r> THEN
3049: tleavings ! drop ;
3050:
3051: >TARGET
3052:
3053: \ What for? ANS? JAW Cond: DONE ( addr -- ) (done) ;Cond
3054:
3055: >CROSS
3056: : (leave) ( branchtoken -- )
3057: 3 cells allocate throw >r
3058: T here H r@ cell+ !
3059: r@ 2 cells + !
3060: tleavings @ r@ !
3061: r> tleavings ! ;
3062: >TARGET
3063:
3064: : (leave,) ( -- )
3065: branchmark, (leave) ; ' (leave,) plugin-of leave,
3066:
3067: : (?leave,) ( -- )
3068: compile 0= ?branchmark, (leave) ; ' (?leave,) plugin-of ?leave,
3069:
3070: Cond: LEAVE leave, ;Cond
3071: Cond: ?LEAVE ?leave, ;Cond
3072:
3073: >CROSS
3074: \ !!JW ToDo : Move to general tools section
3075:
3076: : to1 ( x1 x2 xn n -- addr )
3077: \G packs n stack elements in am allocated memory region
3078: dup dup 1+ cells allocate throw dup >r swap 1+
3079: 0 DO tuck ! cell+ LOOP
3080: drop r> ;
3081:
3082: : 1to ( addr -- x1 x2 xn )
3083: \G unpacks the elements saved by to1
3084: dup @ swap over cells + swap
3085: 0 DO dup @ swap 1 cells - LOOP
3086: free throw ;
3087:
3088: : loop] ( target-addr -- )
3089: branchto,
3090: dup X here branchoffset offset,
3091: tcell - (done) ;
3092:
3093: : skiploop] ?dup IF branchto, branchtoresolve, THEN ;
3094:
3095: >TARGET
3096:
3097: \ Structural Conditionals 12dec92py
3098:
3099: : (cs-swap) ( x1 x2 -- x2 x1 )
3100: swap ; ' (cs-swap) plugin-of cs-swap
3101:
3102: : (ahead,) branchmark, ; ' (ahead,) plugin-of ahead,
3103:
3104: : (if,) ?branchmark, ; ' (if,) plugin-of if,
3105:
3106: : (then,) branchto, branchtoresolve, ; ' (then,) plugin-of then,
3107:
3108: : (else,) ( ahead ) branchmark,
3109: swap
3110: ( then ) branchto, branchtoresolve, ; ' (else,) plugin-of else,
3111:
3112: : (begin,) branchtomark, ; ' (begin,) plugin-of begin,
3113:
3114: : (while,) ( if ) ?branchmark,
3115: swap ; ' (while,) plugin-of while,
3116:
3117: : (again,) branch, ; ' (again,) plugin-of again,
3118:
3119: : (until,) ?branch, ; ' (until,) plugin-of until,
3120:
3121: : (repeat,) ( again ) branch,
3122: ( then ) branchto, branchtoresolve, ; ' (repeat,) plugin-of repeat,
3123:
3124: : (case,) ( -- n )
3125: 0 ; ' (case,) plugin-of case,
3126:
3127: : (of,) ( n -- x1 n )
3128: 1+ >r
3129: compile over compile =
3130: if, compile drop r> ; ' (of,) plugin-of of,
3131:
3132: : (endof,) ( x1 n -- x2 n )
3133: >r 1 ncontrols? else, r> ; ' (endof,) plugin-of endof,
3134:
3135: : (endcase,) ( x1 .. xn n -- )
3136: compile drop 0 ?DO 1 ncontrols? then, LOOP ; ' (endcase,) plugin-of endcase,
3137:
3138: >TARGET
3139: Cond: AHEAD ahead, ;Cond
3140: Cond: IF if, ;Cond
3141: Cond: THEN 1 ncontrols? then, ;Cond
3142: Cond: ENDIF 1 ncontrols? then, ;Cond
3143: Cond: ELSE 1 ncontrols? else, ;Cond
3144:
3145: Cond: BEGIN begin, ;Cond
3146: Cond: WHILE 1 ncontrols? while, ;Cond
3147: Cond: AGAIN 1 ncontrols? again, ;Cond
3148: Cond: UNTIL 1 ncontrols? until, ;Cond
3149: Cond: REPEAT 2 ncontrols? repeat, ;Cond
3150:
3151: Cond: CASE case, ;Cond
3152: Cond: OF of, ;Cond
3153: Cond: ENDOF endof, ;Cond
3154: Cond: ENDCASE endcase, ;Cond
3155:
3156: \ Structural Conditionals 12dec92py
3157:
3158: : (do,) ( -- target-addr )
3159: \ ?? i think 0 is too much! jaw
3160: 0 compile (do)
3161: branchtomark, 2 to1 ; ' (do,) plugin-of do,
3162:
3163: \ alternative for if no ?do
3164: \ : (do,)
3165: \ compile 2dup compile = compile IF
3166: \ compile 2drop compile ELSE
3167: \ compile (do) branchtomark, 2 to1 ;
3168:
3169: : (?do,) ( -- target-addr )
3170: 0 compile (?do) ?domark, (leave)
3171: branchtomark, 2 to1 ; ' (?do,) plugin-of ?do,
3172:
3173: : (for,) ( -- target-addr )
3174: compile (for) branchtomark, ; ' (for,) plugin-of for,
3175:
3176: : (loop,) ( target-addr -- )
3177: 1to compile (loop) loop]
3178: compile unloop skiploop] ; ' (loop,) plugin-of loop,
3179:
3180: : (+loop,) ( target-addr -- )
3181: 1to compile (+loop) loop]
3182: compile unloop skiploop] ; ' (+loop,) plugin-of +loop,
3183:
3184: : (next,)
3185: compile (next) loop] compile unloop ; ' (next,) plugin-of next,
3186:
3187: Cond: DO do, ;Cond
3188: Cond: ?DO ?do, ;Cond
3189: Cond: FOR for, ;Cond
3190:
3191: Cond: LOOP 1 ncontrols? loop, ;Cond
3192: Cond: +LOOP 1 ncontrols? +loop, ;Cond
3193: Cond: NEXT 1 ncontrols? next, ;Cond
3194:
3195: \ String words 23feb93py
3196:
3197: : ," [char] " parse ht-string, X align ;
3198:
3199: X has? control-rack [IF]
3200: Cond: ." compile (.") T ," H ;Cond
3201: Cond: S" compile (S") T ," H ;Cond
3202: Cond: C" compile (C") T ," H ;Cond
3203: Cond: ABORT" compile (ABORT") T ," H ;Cond
3204: [ELSE]
3205: Cond: ." '" parse tuck 2>r ahead, there 2r> ht-mem, X align
3206: >r then, r> compile ALiteral compile Literal compile type ;Cond
3207: Cond: S" '" parse tuck 2>r ahead, there 2r> ht-mem, X align
3208: >r then, r> compile ALiteral compile Literal ;Cond
3209: Cond: C" ahead, there [char] " parse ht-string, X align
3210: >r then, r> compile ALiteral ;Cond
3211: Cond: ABORT" if, ahead, there [char] " parse ht-string, X align
3212: >r then, r> compile ALiteral compile c(abort") then, ;Cond
3213: [THEN]
3214:
3215: Cond: IS T ' >body H compile ALiteral compile ! ;Cond
3216: : IS T >address ' >body ! H ;
3217: Cond: TO T ' >body H compile ALiteral compile ! ;Cond
3218: : TO T ' >body ! H ;
3219:
3220: Cond: defers T ' >body @ compile, H ;Cond
3221:
3222: \ LINKED ERR" ENV" 2ENV" 18may93jaw
3223:
3224: \ linked list primitive
3225: : linked X here over X @ X A, swap X ! ;
3226: : chained T linked A, H ;
3227:
3228: : err" s" ErrLink linked" evaluate T , H
3229: [char] " parse ht-string, X align ;
3230:
3231: : env" [char] " parse s" EnvLink linked" evaluate
3232: ht-string, X align X , ;
3233:
3234: : 2env" [char] " parse s" EnvLink linked" evaluate
3235: here >r ht-string, X align X , X ,
3236: r> dup T c@ H 80 and swap T c! H ;
3237:
3238: \ compile must be last 22feb93py
3239:
3240: Cond: [compile] ( -- ) \ name
3241: \g For immediate words, works even if forward reference
3242: bl word gfind 0= ABORT" CROSS: Can't compile"
3243: (gexecute) ;Cond
3244:
3245: Cond: postpone ( -- ) \ name
3246: bl word gfind 0= ABORT" CROSS: Can't compile"
3247: dup >magic @ <fwd> =
3248: ABORT" CROSS: Can't postpone on forward declaration"
3249: dup >magic @ <imm> =
3250: IF (gexecute)
3251: ELSE >link @ alit, compile compile, THEN ;Cond
3252:
3253: \ save-cross 17mar93py
3254:
3255: hex
3256:
3257: >CROSS
3258: Create magic s" Gforth3x" here over allot swap move
3259:
3260: bigendian 1+ \ strangely, in magic big=0, little=1
3261: tcell 1 = 0 and or
3262: tcell 2 = 2 and or
3263: tcell 4 = 4 and or
3264: tcell 8 = 6 and or
3265: tchar 1 = 00 and or
3266: tchar 2 = 28 and or
3267: tchar 4 = 50 and or
3268: tchar 8 = 78 and or
3269: magic 7 + c!
3270:
3271: : save-cross ( "image-name" "binary-name" -- )
3272: .regions \ s" ec" X $has? IF .regions THEN
3273: bl parse ." Saving to " 2dup type cr
3274: w/o bin create-file throw >r
3275: s" header" X $has? IF
3276: s" #! " r@ write-file throw
3277: bl parse r@ write-file throw
3278: s" --image-file" r@ write-file throw
3279: #lf r@ emit-file throw
3280: r@ dup file-position throw drop 8 mod 8 swap ( file-id limit index )
3281: ?do
3282: bl over emit-file throw
3283: loop
3284: drop
3285: magic 8 r@ write-file throw \ write magic
3286: ELSE
3287: bl parse 2drop
3288: THEN
3289: >rom dictionary >rmem @ there
3290: s" rom" X $has? IF dictionary >rstart @ - THEN
3291: r@ write-file throw \ write image
3292: s" relocate" X $has? IF
3293: dictionary >rbm @ there 1- tcell>bit rshift 1+
3294: r@ write-file throw \ write tags
3295: THEN
3296: r> close-file throw ;
3297:
3298: : save-region ( addr len -- )
3299: bl parse w/o bin create-file throw >r
3300: swap >image swap r@ write-file throw
3301: r> close-file throw ;
3302:
3303: \ save-asm-region 29aug01jaw
3304:
3305: Variable name-ptr
3306: Create name-buf 200 chars allot
3307: : init-name-buf name-buf name-ptr ! ;
3308: : nb, name-ptr @ c! 1 chars name-ptr +! ;
3309: : $nb, ( adr len -- ) bounds ?DO I c@ nb, LOOP ;
3310: : @nb name-ptr @ name-buf tuck - ;
3311:
3312: \ stores a usefull string representation of the character
3313: \ in the name buffer
3314: : name-char, ( c -- )
3315: dup 'a 'z 1+ within IF nb, EXIT THEN
3316: dup 'A 'Z 1+ within IF $20 + nb, EXIT THEN
3317: dup '0 '9 1+ within IF nb, EXIT THEN
3318: CASE '+ OF s" _PLUS" $nb, ENDOF
3319: '- OF s" _MINUS" $nb, ENDOF
3320: '* OF s" _STAR" $nb, ENDOF
3321: '/ OF s" _SLASH" $nb, ENDOF
3322: '' OF s" _TICK" $nb, ENDOF
3323: '( OF s" _OPAREN" $nb, ENDOF
3324: ') OF s" _CPAREN" $nb, ENDOF
3325: '[ OF s" _OBRACKET" $nb, ENDOF
3326: '] OF s" _CBRACKET" $nb, ENDOF
3327: '! OF s" _STORE" $nb, ENDOF
3328: '@ OF s" _FETCH" $nb, ENDOF
3329: '> OF s" _GREATER" $nb, ENDOF
3330: '< OF s" _LESS" $nb, ENDOF
3331: '= OF s" _EQUAL" $nb, ENDOF
3332: '# OF s" _HASH" $nb, ENDOF
3333: '? OF s" _QUEST" $nb, ENDOF
3334: ': OF s" _COL" $nb, ENDOF
3335: '; OF s" _SEMICOL" $nb, ENDOF
3336: ', OF s" _COMMA" $nb, ENDOF
3337: '. OF s" _DOT" $nb, ENDOF
3338: '" OF s" _DQUOT" $nb, ENDOF
3339: dup
3340: base @ >r hex s>d <# #s 'X hold '_ hold #> $nb, r> base !
3341: ENDCASE ;
3342:
3343: : label-from-ghostname ( ghost -- addr len )
3344: dup >ghostname init-name-buf 'L nb, bounds
3345: ?DO I c@ name-char, LOOP
3346: \ we add the address to a name to make in unique
3347: \ because one name may appear more then once
3348: \ there are names (e.g. boot) that may be reference from other
3349: \ assembler source files, so we declare them as unique
3350: \ and don't add the address suffix
3351: dup >ghost-flags @ <unique> and 0=
3352: IF s" __" $nb, >link @ base @ >r hex 0 <# #s 'L hold #> r> base ! $nb,
3353: ELSE drop
3354: THEN
3355: @nb ;
3356:
3357: \ FIXME why disabled?!
3358: : label-from-ghostnameXX ( ghost -- addr len )
3359: \ same as (label-from-ghostname) but caches generated names
3360: dup >asm-name @ ?dup IF nip count EXIT THEN
3361: \ dup >r (label-from-ghostname) 2dup
3362: align here >r string, align
3363: r> r> >asm-name ! ;
3364:
3365: : primghostdiscover ( xt -- ghost true | xt false )
3366: dup 0= IF false EXIT THEN
3367: >r last-prim-ghost
3368: BEGIN @ dup
3369: WHILE dup >asm-dummyaddr @ r@ =
3370: IF rdrop true EXIT THEN
3371: REPEAT
3372: drop r> false ;
3373:
3374: : gdiscover2 ( xt -- ghost true | xt false )
3375: dup taddr>region 0= IF false EXIT THEN
3376: dup (>regiontype) @ dup 0= IF drop false EXIT THEN
3377: addr-xt-ghost @ dup 0= IF drop false EXIT THEN
3378: nip true ;
3379: \ dup >ghost-name @ IF nip true ELSE drop false THEN ;
3380:
3381: \ generates a label name for the target address
3382: : generate-label-name ( taddr -- addr len )
3383: gdiscover2
3384: IF dup >magic @ <do:> =
3385: IF >asm-name @ count EXIT THEN
3386: label-from-ghostname
3387: ELSE
3388: primghostdiscover
3389: IF >asm-name @ count
3390: ELSE base @ >r hex 0 <# #s 'L hold #> r> base !
3391: THEN
3392: THEN ;
3393:
3394: Variable outfile-fd
3395:
3396: : $out ( adr len -- ) outfile-fd @ write-file throw ;
3397: : nlout newline $out ;
3398: : .ux ( n -- )
3399: base @ hex swap 0 <# #S #> $out base ! ;
3400:
3401: : save-asm-region-part-aligned ( taddr len -- 'taddr 'len )
3402: dup cell/ 0
3403: ?DO nlout s" .word " $out over @relbit
3404: IF over X @ generate-label-name $out
3405: ELSE over X @ s" 0x0" $out .ux
3406: THEN
3407: tcell /string
3408: LOOP ;
3409:
3410: : print-bytes ( taddr len n -- taddr' len' )
3411: over min dup 0>
3412: IF nlout s" .byte " $out 0
3413: ?DO I 0> IF s" , " $out THEN
3414: over X c@ s" 0x0" $out .ux 1 /string
3415: LOOP
3416: THEN ;
3417:
3418: : save-asm-region-part ( addr len -- )
3419: over dup X aligned swap - ?dup
3420: IF print-bytes THEN
3421: save-asm-region-part-aligned
3422: dup dup X aligned swap - ?dup
3423: IF 2 pick @relbit ABORT" relocated field splitted"
3424: print-bytes
3425: THEN
3426: 2drop ;
3427:
3428: : print-label ( taddr -- )
3429: nlout generate-label-name $out s" :" $out ;
3430:
3431: : snl-calc ( taddr taddr2 -- )
3432: tuck over - ;
3433:
3434: : skip-nolables ( taddr -- taddr2 taddr len )
3435: \G skips memory region where no lables are defined
3436: \G starting from taddr+1
3437: \G Labels will be introduced for each reference mark
3438: \G in addr-refs.
3439: \G This word deals with lables at byte addresses as well.
3440: \G The main idea is to have an intro part which
3441: \G skips until the next cell boundary, the middle part
3442: \G which skips whole cells very efficiently and the third
3443: \G part which skips the bytes to the label in a cell
3444: dup 1+ dup (>regiontype)
3445: ( S taddr taddr-realstart type-addr )
3446: dup @ dup IF addr-refs @ THEN
3447: swap >r
3448: over align+ tuck tcell swap - rshift swap 0
3449: ?DO dup 1 and
3450: IF drop rdrop snl-calc UNLOOP EXIT THEN
3451: 2/ swap 1+ swap
3452: LOOP
3453: drop r> cell+
3454: ( S .. taddr2 type-addr ) dup
3455: BEGIN dup @ dup IF addr-refs @ THEN 0= WHILE cell+ REPEAT
3456: dup >r swap - 1 cells / tcell * + r>
3457: ( S .. taddr2+skiplencells type-addr )
3458: @ addr-refs @ 1 tcell lshift or
3459: BEGIN dup 1 and 0= WHILE swap 1+ swap 2/ REPEAT drop
3460: ( S .. taddr2+skiplencells+skiplenbytes )
3461: snl-calc ;
3462:
3463: : insert-label ( taddr -- )
3464: dup 0= IF drop EXIT THEN
3465: \ ignore everything which points outside our memory regions
3466: \ maybe a primitive pointer or whatever
3467: dup taddr>region 0= IF drop EXIT THEN
3468: dup >r (>regiontype) define-addr-struct addr-refs dup @
3469: r> tcell 1- and 1 swap lshift or swap ! ;
3470:
3471: \ this generates a sorted list of addresses which must be labels
3472: \ it scans therefore a whole region
3473: : generate-label-list-region ( taddr len -- )
3474: BEGIN over @relbit IF over X @ insert-label THEN
3475: tcell /string dup 0<
3476: UNTIL 2drop ;
3477:
3478: : generate-label-list ( -- )
3479: region-link
3480: BEGIN @ dup WHILE
3481: dup 0 >rlink - extent
3482: ?dup IF generate-label-list-region ELSE drop THEN
3483: REPEAT drop ;
3484:
3485: : create-outfile ( addr len -- )
3486: w/o bin create-file throw outfile-fd ! ;
3487:
3488: : close-outfile ( -- )
3489: outfile-fd @ close-file throw ;
3490:
3491: : (save-asm-region) ( region -- )
3492: \ ." label list..."
3493: generate-label-list
3494: \ ." ok!" cr
3495: extent ( S taddr len )
3496: over insert-label
3497: 2dup + dup insert-label >r ( R end-label )
3498: ( S taddr len ) drop
3499: BEGIN
3500: dup print-label
3501: dup r@ <> WHILE
3502: skip-nolables save-asm-region-part
3503: REPEAT drop rdrop ;
3504:
3505: : lineout ( addr len -- )
3506: outfile-fd @ write-line throw ;
3507:
3508: : save-asm-region ( region adr len -- )
3509: create-outfile (save-asm-region) close-outfile ;
3510:
3511: \ \ minimal definitions
3512:
3513: >MINIMAL also minimal
3514:
3515: \ Usefull words 13feb93py
3516:
3517: : KB 400 * ;
3518:
3519: \ \ [IF] [ELSE] [THEN] ... 14sep97jaw
3520:
3521: \ it is useful to define our own structures and not to rely
3522: \ on the words in the host system
3523: \ The words in the host system might be defined with vocabularies
3524: \ this doesn't work with our self-made compile-loop
3525:
3526: Create parsed 20 chars allot \ store word we parsed
3527:
3528: : upcase
3529: parsed count bounds
3530: ?DO I c@ toupper I c! LOOP ;
3531:
3532: : [ELSE]
3533: 1 BEGIN
3534: BEGIN bl word count dup WHILE
3535: comment? 20 umin parsed place upcase parsed count
3536: 2dup s" [IF]" str= >r
3537: 2dup s" [IFUNDEF]" str= >r
3538: 2dup s" [IFDEF]" str= r> or r> or
3539: IF 2drop 1+
3540: ELSE 2dup s" [ELSE]" str=
3541: IF 2drop 1- dup
3542: IF 1+
3543: THEN
3544: ELSE
3545: 2dup s" [ENDIF]" str= >r
3546: s" [THEN]" str= r> or
3547: IF 1- THEN
3548: THEN
3549: THEN
3550: ?dup 0= ?EXIT
3551: REPEAT
3552: 2drop refill 0=
3553: UNTIL drop ; immediate
3554:
3555: : [THEN] ( -- ) ; immediate
3556:
3557: : [ENDIF] ( -- ) ; immediate
3558:
3559: : [IF] ( flag -- )
3560: 0= IF postpone [ELSE] THEN ; immediate
3561:
3562: Cond: [IF] postpone [IF] ;Cond
3563: Cond: [THEN] postpone [THEN] ;Cond
3564: Cond: [ELSE] postpone [ELSE] ;Cond
3565:
3566: \ define new [IFDEF] and [IFUNDEF] 20may93jaw
3567:
3568: : defined? tdefined? ;
3569: : needed? needed? ;
3570: : doer? doer? ;
3571:
3572: \ we want to use IFDEF on compiler directives (e.g. E?) in the source, too
3573:
3574: : directive?
3575: bl word count [ ' target >wordlist ] literal search-wordlist
3576: dup IF nip THEN ;
3577:
3578: : [IFDEF] >in @ directive? swap >in !
3579: 0= IF tdefined? ELSE name 2drop true THEN
3580: postpone [IF] ;
3581:
3582: : [IFUNDEF] tdefined? 0= postpone [IF] ;
3583:
3584: Cond: [IFDEF] postpone [IFDEF] ;Cond
3585:
3586: Cond: [IFUNDEF] postpone [IFUNDEF] ;Cond
3587:
3588: \ C: \- \+ Conditional Compiling 09jun93jaw
3589:
3590: : C: >in @ tdefined? 0=
3591: IF >in ! X :
3592: ELSE drop
3593: BEGIN bl word dup c@
3594: IF count comment? s" ;" str= ?EXIT
3595: ELSE refill 0= ABORT" CROSS: Out of Input while C:"
3596: THEN
3597: AGAIN
3598: THEN ;
3599:
3600: : d? d? ;
3601:
3602: : \D ( -- "debugswitch" )
3603: \G doesn't skip line when debug switch is on
3604: D? 0= IF postpone \ THEN ;
3605:
3606: : \- ( -- "wordname" )
3607: \G interprets the line if word is not defined
3608: tdefined? IF postpone \ THEN ;
3609:
3610: : \+ ( -- "wordname" )
3611: \G interprets the line if word is defined
3612: tdefined? 0= IF postpone \ THEN ;
3613:
3614: : \? ( -- "envorinstring" )
3615: \G Skip line if environmental variable evaluates to false
3616: X has? 0= IF postpone \ THEN ;
3617:
3618: Cond: \- \- ;Cond
3619: Cond: \+ \+ ;Cond
3620: Cond: \D \D ;Cond
3621: Cond: \? \? ;Cond
3622:
3623: : ?? bl word find IF execute ELSE drop 0 THEN ;
3624:
3625: : needed:
3626: \G defines ghost for words that we want to be compiled
3627: BEGIN >in @ bl word c@ WHILE >in ! Ghost drop REPEAT drop ;
3628:
3629: \ words that should be in minimal
3630:
3631: create s-buffer 50 chars allot
3632:
3633: bigendian Constant bigendian
3634:
3635: : here there ;
3636: : equ constant ;
3637: : mark there constant ;
3638:
3639: \ compiler directives
3640: : >ram >ram ;
3641: : >rom >rom ;
3642: : >auto >auto ;
3643: : >tempdp >tempdp ;
3644: : tempdp> tempdp> ;
3645: : const constflag on ;
3646:
3647: : Redefinitions-start
3648: \G Starts a redefinition section. Warnings are disabled and
3649: \G existing ghosts are reused. This is used in the kernel
3650: \G where ( and \ and the like are redefined
3651: twarnings off warnings off reuse-ghosts on ;
3652:
3653: : Redefinitions-end
3654: \G Ends a redefinition section. Warnings are enabled again.
3655: twarnings on warnings on reuse-ghosts off ;
3656:
3657: : warnings name 3 =
3658: IF twarnings off warnings off ELSE twarnings on warnings on THEN drop ;
3659:
3660: : | ;
3661: \ : | NoHeaderFlag on ; \ This is broken (damages the last word)
3662:
3663: : save-cross save-cross ;
3664: : save-region save-region ;
3665: : tdump swap >image swap dump ;
3666:
3667: also forth
3668: [IFDEF] Label : Label defempty? Label ; [THEN]
3669: [IFDEF] start-macros : start-macros defempty? start-macros ; [THEN]
3670: \ [IFDEF] builttag : builttag builttag ; [THEN]
3671: previous
3672:
3673: : s" [char] " parse s-buffer place s-buffer count ; \ for environment?
3674: : + + ;
3675: : 1+ 1 + ;
3676: : 2+ 2 + ;
3677: : 1- 1- ;
3678: : - - ;
3679: : and and ;
3680: : or or ;
3681: : 2* 2* ;
3682: : * * ;
3683: : / / ;
3684: : dup dup ;
3685: : ?dup ?dup ;
3686: : over over ;
3687: : swap swap ;
3688: : rot rot ;
3689: : drop drop ;
3690: : 2drop 2drop ;
3691: : = = ;
3692: : <> <> ;
3693: : 0= 0= ;
3694: : lshift lshift ;
3695: : 2/ 2/ ;
3696: : hex. base @ $10 base ! swap . base ! ;
3697: : invert invert ;
3698: \ : . . ;
3699:
3700: : all-words ['] forced? IS skip? ;
3701: : needed-words ['] needed? IS skip? ;
3702: : undef-words ['] defined2? IS skip? ;
3703: : skipdef skipdef ;
3704:
3705: : \ postpone \ ; immediate
3706: : \G T-\G ; immediate
3707: : ( postpone ( ; immediate
3708: : include bl word count included ;
3709: : included swap >image swap included ;
3710: : require require ;
3711: : needs require ;
3712: : .( [char] ) parse type ;
3713: : ERROR" [char] " parse
3714: rot
3715: IF cr ." *** " type ." ***" -1 ABORT" CROSS: Target error, see text above"
3716: ELSE 2drop
3717: THEN ;
3718: : ." [char] " parse type ;
3719: : cr cr ;
3720:
3721: : times 0 ?DO dup X c, LOOP drop ; \ used for space table creation
3722:
3723: \ only forth also cross also minimal definitions order
3724:
3725: \ cross-compiler words
3726:
3727: : decimal decimal [g'] decimal >exec2 @ ?dup IF EXECUTE THEN ;
3728: : hex hex [g'] hex >exec2 @ ?dup IF EXECUTE THEN ;
3729:
3730: \ : tudp X tudp ;
3731: \ : tup X tup ;
3732:
3733: : doc-off false to-doc ! ;
3734: : doc-on true to-doc ! ;
3735:
3736: : declareunique ( "name" -- )
3737: \ Sets the unique flag for a ghost. The assembler output
3738: \ generates labels with the ghostname concatenated with the address
3739: \ while cross-compiling. The address is concatenated
3740: \ because we have double occurences of the same name.
3741: \ If we want to reference the labels from the assembler or C
3742: \ code we declare them unique, so the address is skipped.
3743: Ghost >ghost-flags dup @ <unique> or swap ! ;
3744:
3745: \ [IFDEF] dbg : dbg dbg ; [THEN]
3746:
3747: \ for debugging...
3748: \ : dbg dbg ;
3749: : horder order ;
3750: : hwords words ;
3751: \ : words also ghosts
3752: \ words previous ;
3753: : .s .s ;
3754: : depth depth ;
3755: : bye bye ;
3756:
3757: \ dummy
3758:
3759: \ turnkey direction
3760: : H forth ; immediate
3761: : T minimal ; immediate
3762: : G ghosts ; immediate
3763:
3764:
3765: \ these ones are pefered:
3766:
3767: : unlock previous forth also cross ;
3768:
3769: \ also minimal
3770: >cross
3771:
3772: : turnkey
3773: ghosts-wordlist 1 set-order
3774: also target definitions
3775: also Minimal also ;
3776:
3777: >minimal
3778:
3779: : [[+++
3780: turnkey unlock ;
3781:
3782: unlock definitions also minimal
3783:
3784: : lock turnkey ;
3785:
3786: Defer +++]]-hook
3787: : +++]] +++]]-hook lock ;
3788:
3789: LOCK
3790: \ load cross compiler extension defined in mach file
3791:
3792: UNLOCK >CROSS
3793:
3794: [IFDEF] extend-cross extend-cross [THEN]
3795:
3796: LOCK
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