Annotation of gforth/cross.fs, revision 1.129
1.1 anton 1: \ CROSS.FS The Cross-Compiler 06oct92py
2: \ Idea and implementation: Bernd Paysan (py)
1.30 anton 3:
1.86 anton 4: \ Copyright (C) 1995,1996,1997,1998,1999,2000 Free Software Foundation, Inc.
1.30 anton 5:
6: \ This file is part of Gforth.
7:
8: \ Gforth is free software; you can redistribute it and/or
9: \ modify it under the terms of the GNU General Public License
10: \ as published by the Free Software Foundation; either version 2
11: \ of the License, or (at your option) any later version.
12:
13: \ This program is distributed in the hope that it will be useful,
14: \ but WITHOUT ANY WARRANTY; without even the implied warranty of
15: \ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16: \ GNU General Public License for more details.
17:
18: \ You should have received a copy of the GNU General Public License
19: \ along with this program; if not, write to the Free Software
1.87 anton 20: \ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
1.1 anton 21:
1.67 jwilke 22: 0
23: [IF]
24:
25: ToDo:
1.107 jwilke 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
1.67 jwilke 30:
31: [THEN]
1.48 anton 32:
1.128 anton 33: s" compat/strcomp.fs" included
34:
1.77 jwilke 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:
1.78 jwilke 57: : T previous Ghosts also Target ; immediate
1.77 jwilke 58: : G Ghosts ; immediate
59: : H previous Forth also Cross ; immediate
60:
61: forth definitions
62:
1.78 jwilke 63: : T previous Ghosts also Target ; immediate
1.77 jwilke 64: : G Ghosts ; immediate
65:
1.105 jwilke 66:
1.77 jwilke 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:
1.123 jwilke 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:
1.77 jwilke 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 )
1.78 jwilke 144: over [char] ' =
145: IF \ a ' alone is rather unusual :-)
146: drop char+ c@ 0 true EXIT
147: THEN
1.77 jwilke 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]
1.48 anton 209:
1.115 jwilke 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:
1.52 jwilke 217: hex \ the defualt base for the cross-compiler is hex !!
1.78 jwilke 218: \ Warnings off
1.52 jwilke 219:
220: \ words that are generaly useful
221:
1.59 pazsan 222: : KB 400 * ;
1.52 jwilke 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 ;
1.1 anton 228:
1.23 pazsan 229: : string, ( c-addr u -- )
230: \ puts down string as cstring
231: dup c, here swap chars dup allot move ;
1.5 pazsan 232:
1.77 jwilke 233: : ," [char] " parse string, ;
234:
1.52 jwilke 235: : SetValue ( n -- <name> )
1.54 pazsan 236: \G Same behaviour as "Value" if the <name> is not defined
237: \G Same behaviour as "to" if <name> is defined
1.52 jwilke 238: \G SetValue searches in the current vocabulary
1.68 jwilke 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
1.74 jwilke 245: set-order
1.68 jwilke 246: ELSE Value THEN ;
1.52 jwilke 247:
248: : DefaultValue ( n -- <name> )
1.54 pazsan 249: \G Same behaviour as "Value" if the <name> is not defined
250: \G DefaultValue searches in the current vocabulary
1.52 jwilke 251: save-input bl word >r restore-input throw r> count
252: get-current search-wordlist
1.56 pazsan 253: IF bl word drop 2drop ELSE Value THEN ;
1.1 anton 254:
255: hex
256:
1.120 jwilke 257: \ FIXME delete`
1.52 jwilke 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:
1.120 jwilke 262: \ FIXME move down
1.52 jwilke 263: : comment? ( c-addr u -- c-addr u )
1.128 anton 264: 2dup s" (" str=
1.52 jwilke 265: IF postpone (
1.128 anton 266: ELSE 2dup s" \" str= IF postpone \ THEN
1.52 jwilke 267: THEN ;
268:
1.120 jwilke 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
1.105 jwilke 277:
1.52 jwilke 278: \ Begin CROSS COMPILER:
279:
1.74 jwilke 280: \ debugging
1.52 jwilke 281:
1.74 jwilke 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:
1.77 jwilke 291: >CROSS
292:
1.74 jwilke 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
1.54 pazsan 322:
1.123 jwilke 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:
1.77 jwilke 335: \ \ -------------------- source file
336:
337: decimal
338:
339: Variable cross-file-list
340: 0 cross-file-list !
341: Variable target-file-list
342: 0 target-file-list !
343: Variable host-file-list
344: 0 host-file-list !
345:
346: cross-file-list Value file-list
347: 0 Value source-desc
348:
349: \ file loading
350:
351: : >fl-id 1 cells + ;
352: : >fl-name 2 cells + ;
353:
354: Variable filelist 0 filelist !
355: Create NoFile ," #load-file#"
356:
357: : loadfile ( -- adr )
358: source-desc ?dup IF >fl-name ELSE NoFile THEN ;
359:
360: : sourcefilename ( -- adr len )
361: loadfile count ;
362:
363: \ANSI : sourceline# 0 ;
364:
365: \ \ -------------------- path handling from kernel/paths.fs
366:
367: \ paths.fs path file handling 03may97jaw
368:
369: \ -Changing the search-path:
370: \ fpath+ <path> adds a directory to the searchpath
371: \ fpath= <path>|<path> makes complete now searchpath
372: \ seperator is |
373: \ .fpath displays the search path
374: \ remark I:
375: \ a ./ in the beginning of filename is expanded to the directory the
376: \ current file comes from. ./ can also be included in the search-path!
377: \ ~+/ loads from the current working directory
378:
379: \ remark II:
380: \ if there is no sufficient space for the search path increase it!
381:
382:
383: \ -Creating custom paths:
384:
385: \ It is possible to use the search mechanism on yourself.
386:
387: \ Make a buffer for the path:
388: \ create mypath 100 chars , \ maximum length (is checked)
389: \ 0 , \ real len
390: \ 100 chars allot \ space for path
391: \ use the same functions as above with:
392: \ mypath path+
393: \ mypath path=
394: \ mypath .path
395:
396: \ do a open with the search path:
397: \ open-path-file ( adr len path -- fd adr len ior )
398: \ the file is opened read-only; if the file is not found an error is generated
399:
400: \ questions to: wilke@jwdt.com
401:
402: [IFUNDEF] +place
403: : +place ( adr len adr )
404: 2dup >r >r
405: dup c@ char+ + swap move
406: r> r> dup c@ rot + swap c! ;
407: [THEN]
408:
409: [IFUNDEF] place
410: : place ( c-addr1 u c-addr2 )
411: 2dup c! char+ swap move ;
412: [THEN]
413:
414: \ if we have path handling, use this and the setup of it
415: [IFUNDEF] open-fpath-file
416:
417: create sourcepath 1024 chars , 0 , 1024 chars allot \ !! make this dynamic
418: sourcepath value fpath
419:
420: : also-path ( adr len path^ -- )
421: >r
422: \ len check
423: r@ cell+ @ over + r@ @ u> ABORT" path buffer too small!"
424: \ copy into
425: tuck r@ cell+ dup @ cell+ + swap cmove
426: \ make delimiter
427: 0 r@ cell+ dup @ cell+ + 2 pick + c! 1 + r> cell+ +!
428: ;
429:
430: : only-path ( adr len path^ -- )
431: dup 0 swap cell+ ! also-path ;
432:
433: : path+ ( path-addr "dir" -- ) \ gforth
434: \G Add the directory @var{dir} to the search path @var{path-addr}.
435: name rot also-path ;
436:
437: : fpath+ ( "dir" ) \ gforth
438: \G Add directory @var{dir} to the Forth search path.
439: fpath path+ ;
440:
441: : path= ( path-addr "dir1|dir2|dir3" ) \ gforth
442: \G Make a complete new search path; the path separator is |.
443: name 2dup bounds ?DO i c@ [char] | = IF 0 i c! THEN LOOP
444: rot only-path ;
445:
446: : fpath= ( "dir1|dir2|dir3" ) \ gforth
447: \G Make a complete new Forth search path; the path separator is |.
448: fpath path= ;
449:
450: : path>counted cell+ dup cell+ swap @ ;
451:
452: : next-path ( adr len -- adr2 len2 )
453: 2dup 0 scan
454: dup 0= IF 2drop 0 -rot 0 -rot EXIT THEN
455: >r 1+ -rot r@ 1- -rot
456: r> - ;
457:
458: : previous-path ( path^ -- )
459: dup path>counted
460: BEGIN tuck dup WHILE repeat ;
461:
462: : .path ( path-addr -- ) \ gforth
463: \G Display the contents of the search path @var{path-addr}.
464: path>counted
465: BEGIN next-path dup WHILE type space REPEAT 2drop 2drop ;
466:
467: : .fpath ( -- ) \ gforth
468: \G Display the contents of the Forth search path.
469: fpath .path ;
470:
471: : absolut-path? ( addr u -- flag ) \ gforth
472: \G A path is absolute if it starts with a / or a ~ (~ expansion),
473: \G or if it is in the form ./*, extended regexp: ^[/~]|./, or if
474: \G it has a colon as second character ("C:..."). Paths simply
475: \G containing a / are not absolute!
476: 2dup 2 u> swap 1+ c@ [char] : = and >r \ dos absoulte: c:/....
477: over c@ [char] / = >r
478: over c@ [char] ~ = >r
1.128 anton 479: \ 2dup S" ../" string-prefix? r> or >r \ not catered for in expandtopic
480: S" ./" string-prefix?
1.77 jwilke 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~+ ( -- )
1.128 anton 496: ofile count s" ~+/" string-prefix?
1.77 jwilke 497: IF
498: ofile count 3 /string ofile place
499: THEN ;
500:
501: : expandtopic ( -- ) \ stack effect correct? - anton
502: \ expands "./" into an absolute name
1.128 anton 503: ofile count s" ./" string-prefix?
1.77 jwilke 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 )
1.85 pazsan 513: \ deletes phrases like "xy/.." out of our directory name 2dec97jaw
514: over swap
515: BEGIN dup WHILE
1.128 anton 516: dup >r '/ scan 2dup s" /../" string-prefix?
1.85 pazsan 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 - ;
1.77 jwilke 524:
525: : reworkdir ( -- )
526: remove~+
527: ofile count compact..
528: nip ofile c! ;
529:
530: : open-ofile ( -- fid ior )
531: \G opens the file whose name is in ofile
532: expandtopic reworkdir
533: ofile count r/o open-file ;
534:
535: : check-path ( adr1 len1 adr2 len2 -- fd 0 | 0 <>0 )
536: 0 ofile ! >r >r ofile place need/
537: r> r> ofile +place
538: open-ofile ;
539:
540: : open-path-file ( addr1 u1 path-addr -- wfileid addr2 u2 0 | ior ) \ gforth
541: \G Look in path @var{path-addr} for the file specified by @var{addr1 u1}.
542: \G If found, the resulting path and an open file descriptor
543: \G are returned. If the file is not found, @var{ior} is non-zero.
544: >r
545: 2dup absolut-path?
546: IF rdrop
547: ofile place open-ofile
548: dup 0= IF >r ofile count r> THEN EXIT
549: ELSE r> path>counted
550: BEGIN next-path dup
551: WHILE 5 pick 5 pick check-path
552: 0= IF >r 2drop 2drop r> ofile count 0 EXIT ELSE drop THEN
553: REPEAT
554: 2drop 2drop 2drop -38
555: THEN ;
556:
557: : open-fpath-file ( addr1 u1 -- wfileid addr2 u2 0 | ior ) \ gforth
558: \G Look in the Forth search path for the file specified by @var{addr1 u1}.
559: \G If found, the resulting path and an open file descriptor
560: \G are returned. If the file is not found, @var{ior} is non-zero.
561: fpath open-path-file ;
562:
563: fpath= ~+
564:
565: [THEN]
566:
567: \ \ -------------------- include require 13may99jaw
568:
569: >CROSS
570:
571: : add-included-file ( adr len -- adr )
572: dup >fl-name char+ allocate throw >r
573: file-list @ r@ ! r@ file-list !
574: r@ >fl-name place r> ;
575:
576: : included? ( c-addr u -- f )
577: file-list
578: BEGIN @ dup
1.128 anton 579: WHILE >r 2dup r@ >fl-name count str=
1.77 jwilke 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:
1.78 jwilke 618: 0 [IF]
619:
1.77 jwilke 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:
1.78 jwilke 630: [THEN]
631:
1.77 jwilke 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: [THEN]
666:
1.105 jwilke 667: \ \ -------------------- Compiler Plug Ins 01aug97jaw
668:
669: >CROSS
670:
671: \ Compiler States
672:
673: Variable comp-state
674: 0 Constant interpreting
675: 1 Constant compiling
676: 2 Constant resolving
677: 3 Constant assembling
678:
679: : compiling? comp-state @ compiling = ;
680:
681: : pi-undefined -1 ABORT" Plugin undefined" ;
682:
683: : Plugin ( -- : pluginname )
684: Create
685: \ for normal cross-compiling only one action
686: \ exists, this fields are identical. For the instant
687: \ simulation environment we need, two actions for each plugin
688: \ the target one and the one that generates the simulation code
689: ['] pi-undefined , \ action
690: ['] pi-undefined , \ target plugin action
691: 8765 , \ plugin magic
692: DOES> perform ;
693:
694: Plugin DummyPlugin
695:
696: : 'PI ( -- addr : pluginname )
697: ' >body dup 2 cells + @ 8765 <> ABORT" not a plugin" ;
698:
699: : plugin-of ( xt -- : pluginname )
700: dup 'PI 2! ;
701:
702: : action-of ( xt -- : plunginname )
703: 'PI cell+ ! ;
704:
705: : TPA ( -- : plugin )
706: \ target plugin action
707: \ executes current target action of plugin
708: 'PI cell+ POSTPONE literal POSTPONE perform ; immediate
709:
710: Variable ppi-temp 0 ppi-temp !
711:
712: : pa:
713: \g define plugin action
714: ppi-temp @ ABORT" pa: definition not closed"
715: 'PI ppi-temp ! :noname ;
716:
717: : ;pa
718: \g end a definition for plugin action
719: POSTPONE ; ppi-temp @ ! 0 ppi-temp ! ; immediate
720:
721:
1.107 jwilke 722: Plugin dlit, ( d -- ) \ compile numerical value the target
1.105 jwilke 723: Plugin lit, ( n -- )
724: Plugin alit, ( n -- )
725:
726: Plugin branch, ( target-addr -- ) \ compiles a branch
727: Plugin ?branch, ( target-addr -- ) \ compiles a ?branch
728: Plugin branchmark, ( -- branch-addr ) \ reserves room for a branch
729: Plugin ?branchmark, ( -- branch-addr ) \ reserves room for a ?branch
730: Plugin ?domark, ( -- branch-addr ) \ reserves room for a ?do branch
731: Plugin branchto, ( -- ) \ actual program position is target of a branch (do e.g. alignment)
732: ' NOOP plugin-of branchto,
733: Plugin branchtoresolve, ( branch-addr -- ) \ resolves a forward reference from branchmark
734: Plugin branchtomark, ( -- target-addr ) \ marks a branch destination
735:
736: Plugin colon, ( tcfa -- ) \ compiles call to tcfa at current position
737: Plugin prim, ( tcfa -- ) \ compiles primitive invocation
738: Plugin colonmark, ( -- addr ) \ marks a colon call
739: Plugin colon-resolve ( tcfa addr -- )
740:
741: Plugin addr-resolve ( target-addr addr -- )
742: Plugin doer-resolve ( ghost res-pnt target-addr addr -- ghost res-pnt )
743:
744: Plugin ncontrols? ( [ xn ... x1 ] n -- ) \ checks wheter n control structures are open
745: Plugin if, ( -- if-token )
746: Plugin else, ( if-token -- if-token )
747: Plugin then, ( if-token -- )
748: Plugin ahead,
749: Plugin begin,
750: Plugin while,
751: Plugin until,
752: Plugin again,
753: Plugin repeat,
754: Plugin cs-swap ( x1 x2 -- x2 x1 )
755:
756: Plugin case, ( -- n )
757: Plugin of, ( n -- x1 n )
758: Plugin endof, ( x1 n -- x2 n )
759: Plugin endcase, ( x1 .. xn n -- )
760:
761: Plugin do, ( -- do-token )
762: Plugin ?do, ( -- ?do-token )
763: Plugin for, ( -- for-token )
764: Plugin loop, ( do-token / ?do-token -- )
765: Plugin +loop, ( do-token / ?do-token -- )
766: Plugin next, ( for-token )
767: Plugin leave, ( -- )
768: Plugin ?leave, ( -- )
769:
1.121 jwilke 770: Plugin ca>native \ Convert a code address to the processors
771: \ native address. This is used in doprim, and
772: \ code/code: primitive definitions word to
773: \ convert the addresses.
774: \ The only target where we need this is the misc
775: \ which is a 16 Bit processor with word addresses
776: \ but the forth system we build has a normal byte
777: \ addressed memory model
1.105 jwilke 778:
779: Plugin doprim, \ compiles start of a primitive
780: Plugin docol, \ compiles start of a colon definition
781: Plugin doer,
782: Plugin fini, \ compiles end of definition ;s
783: Plugin doeshandler,
784: Plugin dodoes,
785:
786: Plugin colon-start
787: ' noop plugin-of colon-start
788: Plugin colon-end
789: ' noop plugin-of colon-end
790:
791: Plugin ]comp \ starts compilation
792: ' noop plugin-of ]comp
793: Plugin comp[ \ ends compilation
794: ' noop plugin-of comp[
795:
796: Plugin t>body \ we need the system >body
797: \ and the target >body
798:
799: >TARGET
800: : >body t>body ;
801:
802:
1.103 jwilke 803: \ Ghost Builder 06oct92py
804:
1.105 jwilke 805: >CROSS
1.103 jwilke 806: hex
1.105 jwilke 807: \ Values for ghost magic
1.103 jwilke 808: 4711 Constant <fwd> 4712 Constant <res>
809: 4713 Constant <imm> 4714 Constant <do:>
810: 4715 Constant <skip>
811:
1.105 jwilke 812: \ Bitmask for ghost flags
1.103 jwilke 813: 1 Constant <unique>
1.105 jwilke 814: 2 Constant <primitive>
815:
816: \ FXIME: move this to general stuff?
817: : set-flag ( addr flag -- )
818: over @ or swap ! ;
819:
820: : reset-flag ( addr flag -- )
821: invert over @ and swap ! ;
822:
823: : get-flag ( addr flag -- f )
824: swap @ and 0<> ;
825:
1.103 jwilke 826:
827: Struct
1.52 jwilke 828:
1.103 jwilke 829: \ link to next ghost (always the first element)
830: cell% field >next-ghost
1.52 jwilke 831:
1.103 jwilke 832: \ type of ghost
833: cell% field >magic
834:
835: \ pointer where ghost is in target, or if unresolved
836: \ points to the where we have to resolve (linked-list)
837: cell% field >link
1.52 jwilke 838:
1.106 jwilke 839: \ execution semantics (while target compiling) of ghost
1.103 jwilke 840: cell% field >exec
1.52 jwilke 841:
1.106 jwilke 842: \ compilation action of this ghost; this is what is
843: \ done to compile a call (or whatever) to this definition.
844: \ E.g. >comp contains the semantic of postpone s"
845: \ whereas >exec-compile contains the semantic of s"
1.105 jwilke 846: cell% field >comp
847:
1.106 jwilke 848: \ Compilation sematics (while parsing) of this ghost. E.g.
849: \ "\" will skip the rest of line.
850: \ These semantics are defined by Cond: and
851: \ if a word is made immediate in instant, then the >exec2 field
852: \ gets copied to here
1.103 jwilke 853: cell% field >exec-compile
1.52 jwilke 854:
1.106 jwilke 855: \ Additional execution semantics of this ghost. This is used
856: \ for code generated by instant and for the doer-xt of created
857: \ words
1.103 jwilke 858: cell% field >exec2
1.52 jwilke 859:
1.103 jwilke 860: cell% field >created
1.52 jwilke 861:
1.103 jwilke 862: \ the xt of the created ghost word itself
863: cell% field >ghost-xt
1.52 jwilke 864:
1.103 jwilke 865: \ pointer to the counted string of the assiciated
866: \ assembler label
867: cell% field >asm-name
1.52 jwilke 868:
1.103 jwilke 869: \ mapped primitives have a special address, so
870: \ we are able to detect them
871: cell% field >asm-dummyaddr
872:
873: \ for builder (create, variable...) words
874: \ the execution symantics of words built are placed here
875: \ this is a doer ghost or a dummy ghost
876: cell% field >do:ghost
1.93 pazsan 877:
1.103 jwilke 878: cell% field >ghost-flags
1.93 pazsan 879:
1.103 jwilke 880: cell% field >ghost-name
1.52 jwilke 881:
1.103 jwilke 882: End-Struct ghost-struct
1.52 jwilke 883:
1.103 jwilke 884: Variable ghost-list
885: 0 ghost-list !
1.52 jwilke 886:
887: Variable executed-ghost \ last executed ghost, needed in tcreate and gdoes>
1.103 jwilke 888: \ Variable last-ghost \ last ghost that is created
1.52 jwilke 889: Variable last-header-ghost \ last ghost definitions with header
890:
1.103 jwilke 891: \ space for ghosts resolve structure
892: \ we create ghosts in a sepearte space
893: \ and not to the current host dp, because this
894: \ gives trouble with instant while compiling and creating
895: \ a ghost for a forward reference
896: \ BTW: we cannot allocate another memory region
897: \ because allot will check the overflow!!
898: Variable cross-space-dp
899: Create cross-space 250000 allot here 100 allot align
900: Constant cross-space-end
901: cross-space cross-space-dp !
902: Variable cross-space-dp-orig
903:
904: : cross-space-used cross-space-dp @ cross-space - ;
905:
906: : >space ( -- )
907: dp @ cross-space-dp-orig !
908: cross-space-dp @ dp ! ;
909:
910: : space> ( -- )
911: dp @ dup cross-space-dp !
912: cross-space-end u> ABORT" CROSS: cross-space overflow"
913: cross-space-dp-orig @ dp ! ;
914:
1.106 jwilke 915: \ this is just for debugging, to see this in the backtrace
1.103 jwilke 916: : execute-exec execute ;
917: : execute-exec2 execute ;
918: : execute-exec-compile execute ;
919:
920: : NoExec
921: executed-ghost @ >exec2 @
922: ?dup
923: IF execute-exec2
924: ELSE true ABORT" CROSS: Don't execute ghost, or immediate target word"
925: THEN ;
926:
1.105 jwilke 927: Defer is-forward
928:
1.103 jwilke 929: : (ghostheader) ( -- )
1.121 jwilke 930: ghost-list linked <fwd> , 0 , ['] NoExec , ['] is-forward ,
1.118 pazsan 931: 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , ;
1.103 jwilke 932:
933: : ghostheader ( -- ) (ghostheader) 0 , ;
934:
935: ' Ghosts >wordlist Constant ghosts-wordlist
936:
937: \ the current wordlist for ghost definitions in the host
938: ghosts-wordlist Value current-ghosts
939:
1.52 jwilke 940: : Make-Ghost ( "name" -- ghost )
1.103 jwilke 941: >space
942: \ save current and create in ghost vocabulary
943: get-current >r current-ghosts set-current
944: >in @ Create >in !
945: \ some forth systems like iForth need the immediate directly
946: \ after the word is created
947: \ restore current
948: r> set-current
949: here (ghostheader)
950: bl word count string, align
951: space>
952: \ set ghost-xt field by doing a search
953: dup >ghost-name count
954: current-ghosts search-wordlist
955: 0= ABORT" CROSS: Just created, must be there!"
956: over >ghost-xt !
957: DOES>
958: dup executed-ghost !
959: >exec @ execute-exec ;
1.52 jwilke 960:
961: \ ghost words 14oct92py
962: \ changed: 10may93py/jaw
963:
1.103 jwilke 964: Defer search-ghosts
965:
966: : (search-ghosts) ( adr len -- cfa true | 0 )
967: current-ghosts search-wordlist ;
968:
969: ' (search-ghosts) IS search-ghosts
970:
971: : gsearch ( addr len -- ghost true | 0 )
972: search-ghosts
973: dup IF swap >body swap THEN ;
974:
975: : gfind ( string -- ghost true / string false )
1.52 jwilke 976: \ searches for string in word-list ghosts
1.103 jwilke 977: \ dup count type space
978: dup >r count gsearch
979: dup IF rdrop ELSE r> swap THEN ;
1.52 jwilke 980:
981: : gdiscover ( xt -- ghost true | xt false )
1.103 jwilke 982: >r ghost-list
1.52 jwilke 983: BEGIN @ dup
1.103 jwilke 984: WHILE dup >magic @ <fwd> <>
985: IF dup >link @ r@ =
986: IF rdrop true EXIT THEN
987: THEN
1.52 jwilke 988: REPEAT
1.103 jwilke 989: drop r> false ;
1.52 jwilke 990:
1.105 jwilke 991: : xt>ghost ( xt -- ghost )
992: gdiscover 0= ABORT" CROSS: ghost not found for this xt" ;
993:
1.103 jwilke 994: : Ghost ( "name" -- ghost )
995: >in @ bl word gfind IF nip EXIT THEN
1.52 jwilke 996: drop >in ! Make-Ghost ;
997:
998: : >ghostname ( ghost -- adr len )
1.103 jwilke 999: >ghost-name count ;
1000:
1001: : forward? ( ghost -- flag )
1002: >magic @ <fwd> = ;
1003:
1004: : undefined? ( ghost -- flag )
1005: >magic @ dup <fwd> = swap <skip> = or ;
1006:
1007: : immediate? ( ghost -- flag )
1008: >magic @ <imm> = ;
1009:
1010: Variable TWarnings
1011: TWarnings on
1012: Variable Exists-Warnings
1013: Exists-Warnings on
1014:
1015: : exists-warning ( ghost -- ghost )
1016: TWarnings @ Exists-Warnings @ and
1017: IF dup >ghostname warnhead type ." exists " THEN ;
1018:
1019: \ : HeaderGhost Ghost ;
1020:
1021: Variable reuse-ghosts reuse-ghosts off
1022:
1023: : HeaderGhost ( "name" -- ghost )
1024: >in @
1025: bl word count
1026: \ 2dup type space
1027: current-ghosts search-wordlist
1028: IF >body dup undefined? reuse-ghosts @ or
1029: IF nip EXIT
1030: ELSE exists-warning
1031: THEN
1032: drop >in !
1033: ELSE >in !
1034: THEN
1035: \ we keep the execution semantics of the prviously
1036: \ defined words, this is a workaround
1037: \ for the redefined \ until vocs work
1038: Make-Ghost ;
1039:
1.78 jwilke 1040: : .ghost ( ghost -- ) >ghostname type ;
1041:
1.77 jwilke 1042: \ ' >ghostname ALIAS @name
1.52 jwilke 1043:
1.115 jwilke 1044: : findghost ( "ghostname" -- ghost )
1045: bl word gfind 0= ABORT" CROSS: Ghost don't exists" ;
1046:
1.103 jwilke 1047: : [G'] ( -- ghost : name )
1048: \G ticks a ghost and returns its address
1.115 jwilke 1049: findghost
1050: state @ IF postpone literal THEN ; immediate
1.103 jwilke 1051:
1.105 jwilke 1052: : g>xt ( ghost -- xt )
1053: \G Returns the xt (cfa) of a ghost. Issues a warning if undefined.
1.103 jwilke 1054: dup undefined? ABORT" CROSS: forward " >link @ ;
1055:
1.105 jwilke 1056: : g>body ( ghost -- body )
1057: \G Returns the body-address (pfa) of a ghost.
1058: \G Issues a warning if undefined (a forward-reference).
1059: g>xt X >body ;
1060:
1.103 jwilke 1061: 1 Constant <label>
1.52 jwilke 1062:
1.103 jwilke 1063: Struct
1064: \ bitmask of address type (not used for now)
1065: cell% field addr-type
1066: \ if this address is an xt, this field points to the ghost
1067: cell% field addr-xt-ghost
1068: \ a bit mask that tells as what part of the cell
1069: \ is refenced from an address pointer, used for assembler generation
1070: cell% field addr-refs
1071: End-Struct addr-struct
1072:
1073: : %allocerase ( align size -- addr )
1074: dup >r %alloc dup r> erase ;
1075:
1076: \ returns the addr struct, define it if 0 reference
1077: : define-addr-struct ( addr -- struct-addr )
1078: dup @ ?dup IF nip EXIT THEN
1079: addr-struct %allocerase tuck swap ! ;
1.75 jwilke 1080:
1.118 pazsan 1081: >cross
1082:
1.52 jwilke 1083: \ Predefined ghosts 12dec92py
1084:
1.114 jwilke 1085: Ghost - drop \ need a ghost otherwise "-" would be treated as a number
1086:
1.103 jwilke 1087: Ghost 0= drop
1088: Ghost branch Ghost ?branch 2drop
1089: Ghost unloop Ghost ;S 2drop
1.118 pazsan 1090: Ghost lit Ghost ! 2drop
1091: Ghost noop drop
1.103 jwilke 1092: Ghost over Ghost = Ghost drop 2drop drop
1093: Ghost 2drop drop
1094: Ghost 2dup drop
1.115 jwilke 1095: Ghost call drop
1096: Ghost @ drop
1097: Ghost useraddr drop
1098: Ghost execute drop
1099: Ghost + drop
1100: Ghost decimal drop
1101: Ghost hex drop
1.118 pazsan 1102: Ghost lit@ drop
1103: Ghost lit-perform drop
1104: Ghost lit+ drop
1105: Ghost does-exec drop
1.52 jwilke 1106:
1.119 pazsan 1107: Ghost :docol Ghost :doesjump Ghost :dodoes 2drop drop
1108: Ghost :dovar drop
1109:
1.52 jwilke 1110: \ \ Parameter for target systems 06oct92py
1111:
1.103 jwilke 1112:
1.52 jwilke 1113: \ we define it ans like...
1114: wordlist Constant target-environment
1115:
1.103 jwilke 1116: \ save information of current dictionary to restore with environ>
1117: Variable env-current
1.52 jwilke 1118:
1119: : >ENVIRON get-current env-current ! target-environment set-current ;
1120: : ENVIRON> env-current @ set-current ;
1.43 pazsan 1121:
1.48 anton 1122: >TARGET
1.43 pazsan 1123:
1.103 jwilke 1124: : environment? ( addr len -- [ x ] true | false )
1125: \G returns the content of environment variable and true or
1126: \G false if not present
1127: target-environment search-wordlist
1128: IF EXECUTE true ELSE false THEN ;
1129:
1130: : $has? ( addr len -- x | false )
1131: \G returns the content of environment variable
1132: \G or false if not present
1133: T environment? H dup IF drop THEN ;
1134:
1135: : e? ( "name" -- x )
1136: \G returns the content of environment variable.
1137: \G The variable is expected to exist. If not, issue an error.
1138: bl word count T environment? H
1139: 0= ABORT" environment variable not defined!" ;
1140:
1141: : has? ( "name" --- x | false )
1142: \G returns the content of environment variable
1143: \G or false if not present
1144: bl word count T $has? H ;
1.52 jwilke 1145:
1.48 anton 1146:
1.54 pazsan 1147: >ENVIRON get-order get-current swap 1+ set-order
1148: true SetValue compiler
1.83 pazsan 1149: true SetValue cross
1.54 pazsan 1150: true SetValue standard-threading
1151: >TARGET previous
1.52 jwilke 1152:
1.77 jwilke 1153: 0
1.103 jwilke 1154: [IFDEF] mach-file drop mach-file count 1 [THEN]
1155: [IFDEF] machine-file drop machine-file 1 [THEN]
1156: [IF] included hex
1.77 jwilke 1157: [ELSE] cr ." No machine description!" ABORT
1158: [THEN]
1.43 pazsan 1159:
1.53 jwilke 1160: >ENVIRON
1161:
1.54 pazsan 1162: T has? ec H
1163: [IF]
1164: false DefaultValue relocate
1165: false DefaultValue file
1166: false DefaultValue OS
1167: false DefaultValue prims
1168: false DefaultValue floating
1169: false DefaultValue glocals
1170: false DefaultValue dcomps
1171: false DefaultValue hash
1172: false DefaultValue xconds
1173: false DefaultValue header
1.105 jwilke 1174: false DefaultValue backtrace
1175: false DefaultValue new-input
1176: false DefaultValue peephole
1.129 ! jwilke 1177: false DefaultValue abranch
1.54 pazsan 1178: [THEN]
1179:
1180: true DefaultValue interpreter
1181: true DefaultValue ITC
1182: false DefaultValue rom
1.73 jwilke 1183: true DefaultValue standardthreading
1.53 jwilke 1184:
1.52 jwilke 1185: >TARGET
1.53 jwilke 1186: s" relocate" T environment? H
1.103 jwilke 1187: \ JAW why set NIL to this?!
1188: [IF] drop \ SetValue NIL
1.113 jwilke 1189: [ELSE] >ENVIRON X NIL SetValue relocate
1.53 jwilke 1190: [THEN]
1.113 jwilke 1191: >TARGET
1192:
1193: 0 Constant NIL
1.43 pazsan 1194:
1195: >CROSS
1196:
1.52 jwilke 1197: \ \ Create additional parameters 19jan95py
1.19 pazsan 1198:
1.71 jwilke 1199: \ currently cross only works for host machines with address-unit-bits
1200: \ eual to 8 because of s! and sc!
1201: \ but I start to query the environment just to modularize a little bit
1202:
1203: : check-address-unit-bits ( -- )
1204: \ s" ADDRESS-UNIT-BITS" environment?
1205: \ IF 8 <> ELSE true THEN
1206: \ ABORT" ADDRESS-UNIT-BITS unknown or not equal to 8!"
1207:
1208: \ shit, this doesn't work because environment? is only defined for
1209: \ gforth.fi and not kernl???.fi
1210: ;
1211:
1212: check-address-unit-bits
1213: 8 Constant bits/byte \ we define: byte is address-unit
1214:
1215: 1 bits/byte lshift Constant maxbyte
1.77 jwilke 1216: \ this sets byte size for the target machine, (probably right guess) jaw
1.67 jwilke 1217:
1.19 pazsan 1218: T
1.71 jwilke 1219: NIL Constant TNIL
1220: cell Constant tcell
1221: cell<< Constant tcell<<
1222: cell>bit Constant tcell>bit
1223: bits/char Constant tbits/char
1224: bits/char H bits/byte T /
1225: Constant tchar
1226: float Constant tfloat
1227: 1 bits/char lshift Constant tmaxchar
1228: [IFUNDEF] bits/byte
1229: 8 Constant tbits/byte
1230: [ELSE]
1231: bits/byte Constant tbits/byte
1232: [THEN]
1.19 pazsan 1233: H
1.81 pazsan 1234: tbits/char bits/byte / Constant tbyte
1.71 jwilke 1235:
1.19 pazsan 1236:
1.48 anton 1237: \ Variables 06oct92py
1238:
1239: Variable image
1.124 jwilke 1240: Variable (tlast)
1241: (tlast) Value tlast TNIL tlast ! \ Last name field
1.48 anton 1242: Variable tlastcfa \ Last code field
1243: Variable bit$
1.52 jwilke 1244:
1245: \ statistics 10jun97jaw
1246:
1247: Variable headers-named 0 headers-named !
1248: Variable user-vars 0 user-vars !
1249:
1.67 jwilke 1250: : target>bitmask-size ( u1 -- u2 )
1251: 1- tcell>bit rshift 1+ ;
1252:
1.105 jwilke 1253: : allocatetarget ( size -- adr )
1.67 jwilke 1254: dup allocate ABORT" CROSS: No memory for target"
1255: swap over swap erase ;
1.52 jwilke 1256:
1.54 pazsan 1257: \ \ memregion.fs
1.52 jwilke 1258:
1259:
1260: Variable last-defined-region \ pointer to last defined region
1261: Variable region-link \ linked list with all regions
1262: Variable mirrored-link \ linked list for mirrored regions
1263: 0 dup mirrored-link ! region-link !
1264:
1.124 jwilke 1265: : >rname 8 cells + ;
1266: : >rbm 4 cells + ; \ bitfield per cell witch indicates relocation
1.103 jwilke 1267: : >rmem 5 cells + ;
1.124 jwilke 1268: : >rtype 6 cells + ; \ field per cell witch points to a type struct
1269: : >rrom 7 cells + ; \ a -1 indicates that this region is rom
1.67 jwilke 1270: : >rlink 3 cells + ;
1.52 jwilke 1271: : >rdp 2 cells + ;
1272: : >rlen cell+ ;
1273: : >rstart ;
1274:
1.113 jwilke 1275: : (region) ( addr len region -- )
1276: \G change startaddress and length of an existing region
1277: >r r@ last-defined-region !
1278: r@ >rlen ! dup r@ >rstart ! r> >rdp ! ;
1.52 jwilke 1279:
1.123 jwilke 1280: : region ( addr len -- "name" )
1.103 jwilke 1281: \G create a new region
1.52 jwilke 1282: \ check whether predefined region exists
1283: save-input bl word find >r >r restore-input throw r> r> 0=
1284: IF \ make region
1285: drop
1286: save-input create restore-input throw
1287: here last-defined-region !
1288: over ( startaddr ) , ( length ) , ( dp ) ,
1.124 jwilke 1289: region-link linked 0 , 0 , 0 , 0 , bl word count string,
1.52 jwilke 1290: ELSE \ store new parameters in region
1291: bl word drop
1.113 jwilke 1292: >body (region)
1.52 jwilke 1293: THEN ;
1294:
1.103 jwilke 1295: : borders ( region -- startaddr endaddr )
1296: \G returns lower and upper region border
1.67 jwilke 1297: dup >rstart @ swap >rlen @ over + ;
1.52 jwilke 1298:
1.103 jwilke 1299: : extent ( region -- startaddr len )
1300: \G returns the really used area
1.67 jwilke 1301: dup >rstart @ swap >rdp @ over - ;
1.52 jwilke 1302:
1.103 jwilke 1303: : area ( region -- startaddr totallen )
1304: \G returns the total area
1.79 jwilke 1305: dup >rstart @ swap >rlen @ ;
1.52 jwilke 1306:
1.124 jwilke 1307: : mirrored ( -- )
1308: \G mark last defined region as mirrored
1.52 jwilke 1309: mirrored-link
1.68 jwilke 1310: align linked last-defined-region @ , ;
1.52 jwilke 1311:
1.124 jwilke 1312: : writeprotected
1313: \G mark a region as write protected
1314: -1 last-defined-region @ >rrom ! ;
1315:
1.67 jwilke 1316: : .addr ( u -- )
1317: \G prints a 16 or 32 Bit nice hex value
1.52 jwilke 1318: base @ >r hex
1319: tcell 2 u>
1.77 jwilke 1320: IF s>d <# # # # # [char] . hold # # # # #> type
1.52 jwilke 1321: ELSE s>d <# # # # # # #> type
1.103 jwilke 1322: THEN r> base ! space ;
1.52 jwilke 1323:
1324: : .regions \G display region statistic
1325:
1326: \ we want to list the regions in the right order
1327: \ so first collect all regions on stack
1328: 0 region-link @
1329: BEGIN dup WHILE dup @ REPEAT drop
1330: BEGIN dup
1.67 jwilke 1331: WHILE cr
1332: 0 >rlink - >r
1333: r@ >rname count tuck type
1.52 jwilke 1334: 12 swap - 0 max spaces space
1.67 jwilke 1335: ." Start: " r@ >rstart @ dup .addr space
1336: ." End: " r@ >rlen @ + .addr space
1337: ." DP: " r> >rdp @ .addr
1.52 jwilke 1338: REPEAT drop
1.53 jwilke 1339: s" rom" T $has? H 0= ?EXIT
1.52 jwilke 1340: cr ." Mirrored:"
1341: mirrored-link @
1342: BEGIN dup
1.67 jwilke 1343: WHILE space dup cell+ @ >rname count type @
1.52 jwilke 1344: REPEAT drop cr
1345: ;
1346:
1347: \ -------- predefined regions
1348:
1349: 0 0 region address-space
1350: \ total memory addressed and used by the target system
1351:
1352: 0 0 region dictionary
1353: \ rom area for the compiler
1354:
1.53 jwilke 1355: T has? rom H
1.52 jwilke 1356: [IF]
1357: 0 0 region ram-dictionary mirrored
1358: \ ram area for the compiler
1359: [ELSE]
1360: ' dictionary ALIAS ram-dictionary
1361: [THEN]
1362:
1363: 0 0 region return-stack
1364:
1365: 0 0 region data-stack
1366:
1367: 0 0 region tib-region
1368:
1369: ' dictionary ALIAS rom-dictionary
1370:
1371:
1.105 jwilke 1372: : setup-target ( -- ) \G initialize target's memory space
1.53 jwilke 1373: s" rom" T $has? H
1.52 jwilke 1374: IF \ check for ram and rom...
1.72 jwilke 1375: \ address-space area nip 0<>
1.67 jwilke 1376: ram-dictionary area nip 0<>
1377: rom-dictionary area nip 0<>
1.72 jwilke 1378: and 0=
1.52 jwilke 1379: ABORT" CROSS: define address-space, rom- , ram-dictionary, with rom-support!"
1380: THEN
1381: address-space area nip
1382: IF
1383: address-space area
1384: ELSE
1385: dictionary area
1386: THEN
1.67 jwilke 1387: nip 0=
1.52 jwilke 1388: ABORT" CROSS: define at least address-space or dictionary!!"
1.67 jwilke 1389:
1390: \ allocate target for each region
1391: region-link
1392: BEGIN @ dup
1393: WHILE dup
1394: 0 >rlink - >r
1395: r@ >rlen @
1396: IF \ allocate mem
1.103 jwilke 1397: r@ >rlen @ allocatetarget dup image !
1.67 jwilke 1398: r@ >rmem !
1399:
1.103 jwilke 1400: r@ >rlen @
1.67 jwilke 1401: target>bitmask-size allocatetarget
1.72 jwilke 1402: dup bit$ !
1.103 jwilke 1403: r@ >rbm !
1.67 jwilke 1404:
1.103 jwilke 1405: r@ >rlen @
1406: tcell / 1+ cells allocatetarget r@ >rtype !
1407:
1408: rdrop
1.67 jwilke 1409: ELSE r> drop THEN
1.72 jwilke 1410: REPEAT drop ;
1411:
1.105 jwilke 1412: \ MakeKernel 22feb99jaw
1.72 jwilke 1413:
1.113 jwilke 1414: : makekernel ( targetsize -- )
1415: \G convenience word to setup the memory of the target
1416: \G used by main.fs of the c-engine based systems
1417: 100 swap dictionary (region)
1418: setup-target ;
1.72 jwilke 1419:
1420: >MINIMAL
1421: : makekernel makekernel ;
1422: >CROSS
1.52 jwilke 1423:
1.54 pazsan 1424: \ \ switched tdp for rom support 03jun97jaw
1.52 jwilke 1425:
1426: \ second value is here to store some maximal value for statistics
1427: \ tempdp is also embedded here but has nothing to do with rom support
1428: \ (needs switched dp)
1429:
1430: variable tempdp 0 , \ temporary dp for resolving
1431: variable tempdp-save
1432:
1433: 0 [IF]
1434: variable romdp 0 , \ Dictionary-Pointer for ramarea
1435: variable ramdp 0 , \ Dictionary-Pointer for romarea
1436:
1437: \
1438: variable sramdp \ start of ram-area for forth
1439: variable sromdp \ start of rom-area for forth
1440:
1441: [THEN]
1442:
1.123 jwilke 1443: 0 Value current-region
1444: 0 Value tdp
1445: Variable fixed \ flag: true: no automatic switching
1.52 jwilke 1446: \ false: switching is done automatically
1447:
1448: \ Switch-Policy:
1449: \
1450: \ a header is always compiled into rom
1451: \ after a created word (create and variable) compilation goes to ram
1452: \
1453: \ Be careful: If you want to make the data behind create into rom
1454: \ you have to put >rom before create!
1455:
1456: variable constflag constflag off
1457:
1.67 jwilke 1458: : activate ( region -- )
1459: \G next code goes to this region
1.123 jwilke 1460: dup to current-region >rdp to tdp ;
1.67 jwilke 1461:
1.52 jwilke 1462: : (switchram)
1.53 jwilke 1463: fixed @ ?EXIT s" rom" T $has? H 0= ?EXIT
1.67 jwilke 1464: ram-dictionary activate ;
1.52 jwilke 1465:
1466: : switchram
1467: constflag @
1468: IF constflag off ELSE (switchram) THEN ;
1469:
1470: : switchrom
1.67 jwilke 1471: fixed @ ?EXIT rom-dictionary activate ;
1.52 jwilke 1472:
1473: : >tempdp ( addr -- )
1474: tdp tempdp-save ! tempdp to tdp tdp ! ;
1475: : tempdp> ( -- )
1476: tempdp-save @ to tdp ;
1477:
1478: : >ram fixed off (switchram) fixed on ;
1479: : >rom fixed off switchrom fixed on ;
1480: : >auto fixed off switchrom ;
1481:
1482:
1483:
1484: \ : romstart dup sromdp ! romdp ! ;
1485: \ : ramstart dup sramdp ! ramdp ! ;
1486:
1.67 jwilke 1487: \ default compilation goes to rom
1.52 jwilke 1488: \ when romable support is off, only the rom switch is used (!!)
1489: >auto
1490:
1.48 anton 1491: : there tdp @ ;
1492:
1.52 jwilke 1493: >TARGET
1.48 anton 1494:
1.52 jwilke 1495: \ \ Target Memory Handling
1.1 anton 1496:
1497: \ Byte ordering and cell size 06oct92py
1498:
1.19 pazsan 1499: : cell+ tcell + ;
1500: : cells tcell<< lshift ;
1.71 jwilke 1501: : chars tchar * ;
1502: : char+ tchar + ;
1.19 pazsan 1503: : floats tfloat * ;
1.6 anton 1504:
1.1 anton 1505: >CROSS
1.19 pazsan 1506: : cell/ tcell<< rshift ;
1.1 anton 1507: >TARGET
1508: 20 CONSTANT bl
1.52 jwilke 1509: \ TNIL Constant NIL
1.1 anton 1510:
1511: >CROSS
1512:
1.20 pazsan 1513: bigendian
1514: [IF]
1.106 jwilke 1515: : DS! ( d addr -- ) tcell bounds swap 1-
1.20 pazsan 1516: DO maxbyte ud/mod rot I c! -1 +LOOP 2drop ;
1.106 jwilke 1517: : DS@ ( addr -- d ) >r 0 0 r> tcell bounds
1518: DO maxbyte * swap maxbyte um* rot + swap I c@ + swap LOOP ;
1.57 pazsan 1519: : Sc! ( n addr -- ) >r s>d r> tchar bounds swap 1-
1520: DO maxbyte ud/mod rot I c! -1 +LOOP 2drop ;
1521: : Sc@ ( addr -- n ) >r 0 0 r> tchar bounds
1522: DO maxbyte * swap maxbyte um* rot + swap I c@ + swap LOOP d>s ;
1.19 pazsan 1523: [ELSE]
1.106 jwilke 1524: : DS! ( d addr -- ) tcell bounds
1.20 pazsan 1525: DO maxbyte ud/mod rot I c! LOOP 2drop ;
1.106 jwilke 1526: : DS@ ( addr -- n ) >r 0 0 r> tcell bounds swap 1-
1527: DO maxbyte * swap maxbyte um* rot + swap I c@ + swap -1 +LOOP ;
1.57 pazsan 1528: : Sc! ( n addr -- ) >r s>d r> tchar bounds
1529: DO maxbyte ud/mod rot I c! LOOP 2drop ;
1530: : Sc@ ( addr -- n ) >r 0 0 r> tchar bounds swap 1-
1531: DO maxbyte * swap maxbyte um* rot + swap I c@ + swap -1 +LOOP d>s ;
1.1 anton 1532: [THEN]
1533:
1.106 jwilke 1534: : S! ( n addr -- ) >r s>d r> DS! ;
1535: : S@ ( addr -- n ) DS@ d>s ;
1536:
1.67 jwilke 1537: : taddr>region ( taddr -- region | 0 )
1538: \G finds for a target-address the correct region
1539: \G returns 0 if taddr is not in range of a target memory region
1540: region-link
1541: BEGIN @ dup
1542: WHILE dup >r
1543: 0 >rlink - >r
1544: r@ >rlen @
1545: IF dup r@ borders within
1546: IF r> r> drop nip EXIT THEN
1547: THEN
1548: r> drop
1549: r>
1550: REPEAT
1551: 2drop 0 ;
1552:
1.103 jwilke 1553: : taddr>region-abort ( taddr -- region | 0 )
1.122 jwilke 1554: \G Same as taddr>region but aborts if taddr is not
1555: \G a valid address in the target address space
1.103 jwilke 1556: dup taddr>region dup 0=
1557: IF drop cr ." Wrong address: " .addr
1558: -1 ABORT" Address out of range!"
1559: THEN nip ;
1560:
1.67 jwilke 1561: : (>regionimage) ( taddr -- 'taddr )
1562: dup
1563: \ find region we want to address
1.103 jwilke 1564: taddr>region-abort
1.67 jwilke 1565: >r
1566: \ calculate offset in region
1567: r@ >rstart @ -
1568: \ add regions real address in our memory
1569: r> >rmem @ + ;
1570:
1.124 jwilke 1571: : (>regionramimage) ( taddr -- 'taddr )
1572: \G same as (>regionimage) but aborts if the region is rom
1573: dup
1574: \ find region we want to address
1575: taddr>region-abort
1576: >r
1577: r@ >rrom @ ABORT" CROSS: region is write-protected!"
1578: \ calculate offset in region
1579: r@ >rstart @ -
1580: \ add regions real address in our memory
1581: r> >rmem @ + ;
1582:
1.103 jwilke 1583: : (>regionbm) ( taddr -- 'taddr bitmaskbaseaddr )
1584: dup
1585: \ find region we want to address
1586: taddr>region-abort
1587: >r
1588: \ calculate offset in region
1589: r@ >rstart @ -
1590: \ add regions real address in our memory
1591: r> >rbm @ ;
1592:
1593: : (>regiontype) ( taddr -- 'taddr )
1594: dup
1595: \ find region we want to address
1596: taddr>region-abort
1597: >r
1598: \ calculate offset in region
1599: r@ >rstart @ - tcell / cells
1600: \ add regions real address in our memory
1601: r> >rtype @ + ;
1602:
1.1 anton 1603: \ Bit string manipulation 06oct92py
1604: \ 9may93jaw
1605: CREATE Bittable 80 c, 40 c, 20 c, 10 c, 8 c, 4 c, 2 c, 1 c,
1606: : bits ( n -- n ) chars Bittable + c@ ;
1607:
1608: : >bit ( addr n -- c-addr mask ) 8 /mod rot + swap bits ;
1609: : +bit ( addr n -- ) >bit over c@ or swap c! ;
1.4 pazsan 1610: : -bit ( addr n -- ) >bit invert over c@ and swap c! ;
1.67 jwilke 1611:
1.103 jwilke 1612: : @relbit ( taddr -- f ) (>regionbm) swap cell/ >bit swap c@ and ;
1613:
1.84 jwilke 1614: : (relon) ( taddr -- )
1615: [ [IFDEF] fd-relocation-table ]
1616: s" +" fd-relocation-table write-file throw
1617: dup s>d <# #s #> fd-relocation-table write-line throw
1618: [ [THEN] ]
1.103 jwilke 1619: (>regionbm) swap cell/ +bit ;
1.84 jwilke 1620:
1621: : (reloff) ( taddr -- )
1622: [ [IFDEF] fd-relocation-table ]
1623: s" -" fd-relocation-table write-file throw
1624: dup s>d <# #s #> fd-relocation-table write-line throw
1625: [ [THEN] ]
1.103 jwilke 1626: (>regionbm) swap cell/ -bit ;
1.67 jwilke 1627:
1628: : (>image) ( taddr -- absaddr ) image @ + ;
1629:
1630: DEFER >image
1.124 jwilke 1631: DEFER >ramimage
1.67 jwilke 1632: DEFER relon
1633: DEFER reloff
1634: DEFER correcter
1635:
1636: T has? relocate H
1637: [IF]
1638: ' (relon) IS relon
1639: ' (reloff) IS reloff
1.103 jwilke 1640: ' (>regionimage) IS >image
1.124 jwilke 1641: ' (>regionimage) IS >ramimage
1.67 jwilke 1642: [ELSE]
1643: ' drop IS relon
1644: ' drop IS reloff
1.68 jwilke 1645: ' (>regionimage) IS >image
1.124 jwilke 1646: ' (>regionimage) IS >ramimage
1.67 jwilke 1647: [THEN]
1.1 anton 1648:
1.124 jwilke 1649: : enforce-writeprotection ( -- )
1650: ['] (>regionramimage) IS >ramimage ;
1651:
1652: : relax-writeprotection ( -- )
1653: ['] (>regionimage) IS >ramimage ;
1654:
1655: : writeprotection-relaxed? ( -- )
1656: ['] >ramimage >body @ ['] (>regionimage) = ;
1657:
1.1 anton 1658: \ Target memory access 06oct92py
1659:
1660: : align+ ( taddr -- rest )
1.48 anton 1661: tcell tuck 1- and - [ tcell 1- ] Literal and ;
1.22 anton 1662: : cfalign+ ( taddr -- rest )
1.39 pazsan 1663: \ see kernel.fs:cfaligned
1.43 pazsan 1664: /maxalign tuck 1- and - [ /maxalign 1- ] Literal and ;
1.1 anton 1665:
1666: >TARGET
1667: : aligned ( taddr -- ta-addr ) dup align+ + ;
1668: \ assumes cell alignment granularity (as GNU C)
1669:
1.22 anton 1670: : cfaligned ( taddr1 -- taddr2 )
1.39 pazsan 1671: \ see kernel.fs
1.22 anton 1672: dup cfalign+ + ;
1673:
1.52 jwilke 1674: : @ ( taddr -- w ) >image S@ ;
1.124 jwilke 1675: : ! ( w taddr -- ) >ramimage S! ;
1.57 pazsan 1676: : c@ ( taddr -- char ) >image Sc@ ;
1.124 jwilke 1677: : c! ( char taddr -- ) >ramimage Sc! ;
1.7 anton 1678: : 2@ ( taddr -- x1 x2 ) T dup cell+ @ swap @ H ;
1.82 pazsan 1679: : 2! ( x1 x2 taddr -- ) T tuck ! cell+ ! H ;
1.1 anton 1680:
1681: \ Target compilation primitives 06oct92py
1682: \ included A! 16may93jaw
1683:
1684: : here ( -- there ) there ;
1685: : allot ( n -- ) tdp +! ;
1.78 jwilke 1686: : , ( w -- ) T here H tcell T allot ! H ;
1687: : c, ( char -- ) T here H tchar T allot c! H ;
1688: : align ( -- ) T here H align+ 0 ?DO bl T c, H tchar +LOOP ;
1.22 anton 1689: : cfalign ( -- )
1.78 jwilke 1690: T here H cfalign+ 0 ?DO bl T c, H tchar +LOOP ;
1.1 anton 1691:
1.71 jwilke 1692: : >address dup 0>= IF tbyte / THEN ; \ ?? jaw
1.59 pazsan 1693: : A! swap >address swap dup relon T ! H ;
1694: : A, ( w -- ) >address T here H relon T , H ;
1.1 anton 1695:
1.118 pazsan 1696: \ high-level ghosts
1697:
1698: >CROSS
1699:
1700: Ghost (do) Ghost (?do) 2drop
1701: Ghost (for) drop
1702: Ghost (loop) Ghost (+loop) 2drop
1703: Ghost (next) drop
1704: Ghost (does>) Ghost (compile) 2drop
1705: Ghost (.") Ghost (S") Ghost (ABORT") 2drop drop
1706: Ghost (C") drop
1707: Ghost ' drop
1708:
1709: \ user ghosts
1710:
1711: Ghost state drop
1.103 jwilke 1712:
1713: \ \ -------------------- Host/Target copy etc. 29aug01jaw
1714:
1715:
1716: >CROSS
1717:
1.107 jwilke 1718: : TD! >image DS! ;
1719: : TD@ >image DS@ ;
1720:
1.103 jwilke 1721: : th-count ( taddr -- host-addr len )
1722: \G returns host address of target string
1723: assert1( tbyte 1 = )
1724: dup X c@ swap X char+ >image swap ;
1725:
1726: : ht-move ( haddr taddr len -- )
1727: \G moves data from host-addr to destination in target-addr
1728: \G character by character
1729: swap -rot bounds ?DO I c@ over X c! X char+ LOOP drop ;
1730:
1731: 2Variable last-string
1732:
1733: : ht-string, ( addr count -- )
1734: dup there swap last-string 2!
1735: dup T c, H bounds ?DO I c@ T c, H LOOP ;
1736:
1737: >TARGET
1738:
1739: : count dup X c@ swap X char+ swap ;
1.110 jwilke 1740:
1741: : on -1 -1 rot TD! ;
1.103 jwilke 1742: : off T 0 swap ! H ;
1.1 anton 1743:
1.107 jwilke 1744: : tcmove ( source dest len -- )
1745: \G cmove in target memory
1746: tchar * bounds
1747: ?DO dup T c@ H I T c! H 1+
1748: tchar +LOOP drop ;
1749:
1750: : td, ( d -- )
1751: \G Store a host value as one cell into the target
1752: there tcell X allot TD! ;
1753:
1754: \ \ Load Assembler
1755:
1756: >TARGET
1757: H also Forth definitions
1758:
1759: \ FIXME: should we include the assembler really in the forth
1760: \ dictionary?!?!?!? This conflicts with the existing assembler
1761: \ of the host forth system!!
1762: [IFDEF] asm-include asm-include [THEN] hex
1763:
1764: previous
1765:
1766:
1.52 jwilke 1767: >CROSS
1768:
1.103 jwilke 1769: : (cc) T a, H ; ' (cc) plugin-of colon,
1.105 jwilke 1770: : (prim) T a, H ; ' (prim) plugin-of prim,
1.52 jwilke 1771:
1.118 pazsan 1772: : (cr) >tempdp colon, tempdp> ; ' (cr) plugin-of colon-resolve
1.103 jwilke 1773: : (ar) T ! H ; ' (ar) plugin-of addr-resolve
1.54 pazsan 1774: : (dr) ( ghost res-pnt target-addr addr )
1775: >tempdp drop over
1776: dup >magic @ <do:> =
1777: IF doer,
1778: ELSE dodoes,
1779: THEN
1.103 jwilke 1780: tempdp> ; ' (dr) plugin-of doer-resolve
1.54 pazsan 1781:
1782: : (cm) ( -- addr )
1.121 jwilke 1783: there -1 colon, ; ' (cm) plugin-of colonmark,
1.1 anton 1784:
1.52 jwilke 1785: >TARGET
1.105 jwilke 1786: : compile, ( xt -- )
1.107 jwilke 1787: dup xt>ghost >comp @ EXECUTE ;
1.52 jwilke 1788: >CROSS
1.1 anton 1789:
1.102 jwilke 1790: \ resolve structure
1791:
1792: : >next ; \ link to next field
1793: : >tag cell+ ; \ indecates type of reference: 0: call, 1: address, 2: doer
1794: : >taddr cell+ cell+ ;
1795: : >ghost 3 cells + ;
1796: : >file 4 cells + ;
1797: : >line 5 cells + ;
1798:
1799: : (refered) ( ghost addr tag -- )
1800: \G creates a reference to ghost at address taddr
1.103 jwilke 1801: >space
1802: rot >link linked
1.102 jwilke 1803: ( taddr tag ) ,
1804: ( taddr ) ,
1805: last-header-ghost @ ,
1806: loadfile ,
1807: sourceline# ,
1.103 jwilke 1808: space>
1.118 pazsan 1809: ;
1810:
1.52 jwilke 1811: : refered ( ghost tag -- )
1.53 jwilke 1812: \G creates a resolve structure
1.54 pazsan 1813: T here aligned H swap (refered)
1814: ;
1815:
1816: : killref ( addr ghost -- )
1817: \G kills a forward reference to ghost at position addr
1818: \G this is used to eleminate a :dovar refence after making a DOES>
1819: dup >magic @ <fwd> <> IF 2drop EXIT THEN
1820: swap >r >link
1821: BEGIN dup @ dup ( addr last this )
1822: WHILE dup >taddr @ r@ =
1823: IF @ over !
1824: ELSE nip THEN
1825: REPEAT rdrop 2drop
1.53 jwilke 1826: ;
1.48 anton 1827:
1.52 jwilke 1828: Defer resolve-warning
1.1 anton 1829:
1.52 jwilke 1830: : reswarn-test ( ghost res-struct -- ghost res-struct )
1.78 jwilke 1831: over cr ." Resolving " .ghost dup ." in " >ghost @ .ghost ;
1.1 anton 1832:
1.52 jwilke 1833: : reswarn-forward ( ghost res-struct -- ghost res-struct )
1.78 jwilke 1834: over warnhead .ghost dup ." is referenced in "
1835: >ghost @ .ghost ;
1.1 anton 1836:
1.52 jwilke 1837: \ ' reswarn-test IS resolve-warning
1838:
1.1 anton 1839: \ resolve 14oct92py
1840:
1.54 pazsan 1841: : resolve-loop ( ghost resolve-list tcfa -- )
1842: >r
1843: BEGIN dup WHILE
1844: \ dup >tag @ 2 = IF reswarn-forward THEN
1845: resolve-warning
1846: r@ over >taddr @
1847: 2 pick >tag @
1848: CASE 0 OF colon-resolve ENDOF
1849: 1 OF addr-resolve ENDOF
1850: 2 OF doer-resolve ENDOF
1851: ENDCASE
1852: @ \ next list element
1853: REPEAT 2drop rdrop
1854: ;
1.52 jwilke 1855:
1856: \ : resolve-loop ( ghost tcfa -- ghost tcfa )
1857: \ >r dup >link @
1858: \ BEGIN dup WHILE dup T @ H r@ rot T ! H REPEAT drop r> ;
1.1 anton 1859:
1860: \ exists 9may93jaw
1861:
1.103 jwilke 1862: : exists ( ghost tcfa -- )
1863: \G print warning and set new target link in ghost
1864: swap exists-warning
1865: >link ! ;
1.52 jwilke 1866:
1.105 jwilke 1867: : colon-resolved ( ghost -- )
1.121 jwilke 1868: \ compiles a call to a colon definition,
1869: \ compile action for >comp field
1870: >link @ colon, ;
1.105 jwilke 1871:
1872: : prim-resolved ( ghost -- )
1.121 jwilke 1873: \ compiles a call to a primitive
1.105 jwilke 1874: >link @ prim, ;
1875:
1.121 jwilke 1876: : (is-forward) ( ghost -- )
1877: colonmark, 0 (refered) ; \ compile space for call
1878: ' (is-forward) IS is-forward
1879:
1.118 pazsan 1880: 0 Value resolved
1.1 anton 1881:
1.122 jwilke 1882: : resolve-forward-references ( ghost resolve-list -- )
1883: \ loop through forward referencies
1884: comp-state @ >r Resolving comp-state !
1885: over >link @ resolve-loop
1886: r> comp-state !
1887:
1888: ['] noop IS resolve-warning ;
1889:
1890:
1891: : (resolve) ( ghost tcfa -- ghost resolve-list )
1892: \ check for a valid address, it is a primitive reference
1893: \ otherwise
1.103 jwilke 1894: dup taddr>region 0<> IF
1.122 jwilke 1895: \ define this address in the region address type table
1.103 jwilke 1896: 2dup (>regiontype) define-addr-struct addr-xt-ghost
1897: \ we define new address only if empty
1.105 jwilke 1898: \ this is for not to take over the alias ghost
1899: \ (different ghost, but identical xt)
1.103 jwilke 1900: \ but the very first that really defines it
1901: dup @ 0= IF ! ELSE 2drop THEN
1902: THEN
1.122 jwilke 1903: swap >r
1.118 pazsan 1904: r@ to resolved
1.121 jwilke 1905:
1906: \ r@ >comp @ ['] is-forward =
1907: \ ABORT" >comp action not set on a resolved ghost"
1908:
1909: \ copmile action defaults to colon-resolved
1910: \ if this is not right something must be set before
1911: \ calling resolve
1912: r@ >comp @ ['] is-forward = IF
1.122 jwilke 1913: ['] colon-resolved r@ >comp !
1914: THEN
1915: r@ >link @ swap \ ( list tcfa R: ghost )
1916: \ mark ghost as resolved
1917: r@ >link ! <res> r@ >magic !
1918: r> swap ;
1.54 pazsan 1919:
1.122 jwilke 1920: : resolve ( ghost tcfa -- )
1921: \G resolve referencies to ghost with tcfa
1922: \ is ghost resolved?, second resolve means another
1923: \ definition with the same name
1924: over undefined? 0= IF exists EXIT THEN
1925: (resolve)
1926: ( ghost resolve-list )
1927: resolve-forward-references ;
1928:
1929: : resolve-noforwards ( ghost tcfa -- )
1930: \G Same as resolve but complain if there are any
1931: \G forward references on this ghost
1932: \ is ghost resolved?, second resolve means another
1933: \ definition with the same name
1934: over undefined? 0= IF exists EXIT THEN
1935: (resolve)
1936: IF cr ." No forward references allowed on: " .ghost cr
1937: -1 ABORT" Illegal forward reference"
1938: THEN
1939: drop ;
1.1 anton 1940:
1941: \ gexecute ghost, 01nov92py
1942:
1.103 jwilke 1943: : (gexecute) ( ghost -- )
1.105 jwilke 1944: dup >comp @ EXECUTE ;
1.103 jwilke 1945:
1946: : gexecute ( ghost -- )
1.120 jwilke 1947: dup >magic @ <imm> = ABORT" CROSS: gexecute on immediate word"
1.103 jwilke 1948: (gexecute) ;
1.52 jwilke 1949:
1950: : addr, ( ghost -- )
1.105 jwilke 1951: dup forward? IF 1 refered 0 T a, H ELSE >link @ T a, H THEN ;
1.52 jwilke 1952:
1.1 anton 1953: \ .unresolved 11may93jaw
1954:
1955: variable ResolveFlag
1956:
1957: \ ?touched 11may93jaw
1958:
1.52 jwilke 1959: : ?touched ( ghost -- flag ) dup forward? swap >link @
1.1 anton 1960: 0 <> and ;
1961:
1.53 jwilke 1962: : .forwarddefs ( ghost -- )
1.103 jwilke 1963: ." appeared in:"
1964: >link
1965: BEGIN @ dup
1966: WHILE cr 5 spaces
1967: dup >ghost @ .ghost
1968: ." file " dup >file @ ?dup IF count type ELSE ." CON" THEN
1969: ." line " dup >line @ .dec
1970: REPEAT
1971: drop ;
1972:
1973: : ?resolved ( ghost -- )
1974: dup ?touched
1975: IF ResolveFlag on
1976: dup cr .ghost .forwarddefs
1.53 jwilke 1977: ELSE drop
1978: THEN ;
1.1 anton 1979:
1980: : .unresolved ( -- )
1981: ResolveFlag off cr ." Unresolved: "
1.103 jwilke 1982: ghost-list
1.1 anton 1983: BEGIN @ dup
1984: WHILE dup ?resolved
1.10 anton 1985: REPEAT drop ResolveFlag @
1986: IF
1.48 anton 1987: -1 abort" Unresolved words!"
1.10 anton 1988: ELSE
1989: ." Nothing!"
1990: THEN
1991: cr ;
1.1 anton 1992:
1.52 jwilke 1993: : .stats
1994: base @ >r decimal
1995: cr ." named Headers: " headers-named @ .
1996: r> base ! ;
1997:
1.79 jwilke 1998: >MINIMAL
1999:
2000: : .unresolved .unresolved ;
2001:
1.1 anton 2002: >CROSS
2003: \ Header states 12dec92py
2004:
1.102 jwilke 2005: \ : flag! ( 8b -- ) tlast @ dup >r T c@ xor r> c! H ;
1.90 pazsan 2006: bigendian [IF] 0 [ELSE] tcell 1- [THEN] Constant flag+
2007: : flag! ( w -- ) tlast @ flag+ + dup >r T c@ xor r> c! H ;
1.1 anton 2008:
2009: VARIABLE ^imm
2010:
1.105 jwilke 2011: \ !! should be target wordsize specific
2012: $80 constant alias-mask
2013: $40 constant immediate-mask
2014: $20 constant restrict-mask
2015:
1.1 anton 2016: >TARGET
1.105 jwilke 2017: : immediate immediate-mask flag!
1.18 pazsan 2018: ^imm @ @ dup <imm> = IF drop EXIT THEN
1.1 anton 2019: <res> <> ABORT" CROSS: Cannot immediate a unresolved word"
2020: <imm> ^imm @ ! ;
1.105 jwilke 2021: : restrict restrict-mask flag! ;
1.52 jwilke 2022:
1.54 pazsan 2023: : isdoer
2024: \G define a forth word as doer, this makes obviously only sence on
2025: \G forth processors such as the PSC1000
2026: <do:> last-header-ghost @ >magic ! ;
1.1 anton 2027: >CROSS
2028:
2029: \ Target Header Creation 01nov92py
2030:
1.103 jwilke 2031: : ht-lstring, ( addr count -- )
1.102 jwilke 2032: dup T , H bounds ?DO I c@ T c, H LOOP ;
2033:
1.103 jwilke 2034: >TARGET
2035: : name, ( "name" -- ) bl word count ht-lstring, X cfalign ;
1.1 anton 2036: : view, ( -- ) ( dummy ) ;
1.52 jwilke 2037: >CROSS
1.1 anton 2038:
1.25 pazsan 2039: \ Target Document Creation (goes to crossdoc.fd) 05jul95py
2040:
1.55 pazsan 2041: s" ./doc/crossdoc.fd" r/w create-file throw value doc-file-id
1.25 pazsan 2042: \ contains the file-id of the documentation file
2043:
1.40 pazsan 2044: : T-\G ( -- )
1.25 pazsan 2045: source >in @ /string doc-file-id write-line throw
1.40 pazsan 2046: postpone \ ;
1.25 pazsan 2047:
1.39 pazsan 2048: Variable to-doc to-doc on
1.25 pazsan 2049:
2050: : cross-doc-entry ( -- )
2051: to-doc @ tlast @ 0<> and \ not an anonymous (i.e. noname) header
2052: IF
2053: s" " doc-file-id write-line throw
2054: s" make-doc " doc-file-id write-file throw
1.102 jwilke 2055:
1.105 jwilke 2056: Last-Header-Ghost @ >ghostname doc-file-id write-file throw
1.25 pazsan 2057: >in @
2058: [char] ( parse 2drop
2059: [char] ) parse doc-file-id write-file throw
2060: s" )" doc-file-id write-file throw
2061: [char] \ parse 2drop
1.40 pazsan 2062: T-\G
1.25 pazsan 2063: >in !
1.39 pazsan 2064: THEN ;
1.25 pazsan 2065:
1.28 pazsan 2066: \ Target TAGS creation
2067:
1.39 pazsan 2068: s" kernel.TAGS" r/w create-file throw value tag-file-id
1.116 pazsan 2069: s" kernel.tags" r/w create-file throw value vi-tag-file-id
1.28 pazsan 2070: \ contains the file-id of the tags file
2071:
2072: Create tag-beg 2 c, 7F c, bl c,
2073: Create tag-end 2 c, bl c, 01 c,
2074: Create tag-bof 1 c, 0C c,
1.116 pazsan 2075: Create tag-tab 1 c, 09 c,
1.28 pazsan 2076:
2077: 2variable last-loadfilename 0 0 last-loadfilename 2!
2078:
2079: : put-load-file-name ( -- )
1.77 jwilke 2080: sourcefilename last-loadfilename 2@ d<>
1.28 pazsan 2081: IF
2082: tag-bof count tag-file-id write-line throw
1.31 anton 2083: sourcefilename 2dup
1.28 pazsan 2084: tag-file-id write-file throw
2085: last-loadfilename 2!
2086: s" ,0" tag-file-id write-line throw
2087: THEN ;
2088:
1.116 pazsan 2089: : cross-gnu-tag-entry ( -- )
1.28 pazsan 2090: tlast @ 0<> \ not an anonymous (i.e. noname) header
2091: IF
2092: put-load-file-name
2093: source >in @ min tag-file-id write-file throw
2094: tag-beg count tag-file-id write-file throw
1.116 pazsan 2095: Last-Header-Ghost @ >ghostname tag-file-id write-file throw
1.28 pazsan 2096: tag-end count tag-file-id write-file throw
1.31 anton 2097: base @ decimal sourceline# 0 <# #s #> tag-file-id write-file throw
1.28 pazsan 2098: \ >in @ 0 <# #s [char] , hold #> tag-file-id write-line throw
2099: s" ,0" tag-file-id write-line throw
2100: base !
2101: THEN ;
1.116 pazsan 2102:
2103: : cross-vi-tag-entry ( -- )
2104: tlast @ 0<> \ not an anonymous (i.e. noname) header
2105: IF
2106: sourcefilename vi-tag-file-id write-file throw
2107: tag-tab count vi-tag-file-id write-file throw
2108: Last-Header-Ghost @ >ghostname vi-tag-file-id write-file throw
2109: tag-tab count vi-tag-file-id write-file throw
2110: s" /^" vi-tag-file-id write-file throw
2111: source vi-tag-file-id write-file throw
2112: s" $/" vi-tag-file-id write-line throw
2113: THEN ;
2114:
2115: : cross-tag-entry ( -- )
2116: cross-gnu-tag-entry
2117: cross-vi-tag-entry ;
1.28 pazsan 2118:
1.43 pazsan 2119: \ Check for words
2120:
2121: Defer skip? ' false IS skip?
2122:
1.103 jwilke 2123: : skipdef ( "name" -- )
1.79 jwilke 2124: \G skip definition of an undefined word in undef-words and
2125: \G all-words mode
1.103 jwilke 2126: Ghost dup forward?
1.75 jwilke 2127: IF >magic <skip> swap !
2128: ELSE drop THEN ;
2129:
1.103 jwilke 2130: : tdefined? ( "name" -- flag )
2131: Ghost undefined? 0= ;
1.75 jwilke 2132:
1.103 jwilke 2133: : defined2? ( "name" -- flag )
1.75 jwilke 2134: \G return true for anything else than forward, even for <skip>
2135: \G that's what we want
1.103 jwilke 2136: Ghost forward? 0= ;
1.43 pazsan 2137:
1.103 jwilke 2138: : forced? ( "name" -- flag )
1.79 jwilke 2139: \G return ture if it is a foreced skip with defskip
1.103 jwilke 2140: Ghost >magic @ <skip> = ;
1.79 jwilke 2141:
1.43 pazsan 2142: : needed? ( -- flag ) \ name
1.48 anton 2143: \G returns a false flag when
2144: \G a word is not defined
2145: \G a forward reference exists
2146: \G so the definition is not skipped!
2147: bl word gfind
1.75 jwilke 2148: IF dup undefined?
1.48 anton 2149: nip
2150: 0=
2151: ELSE drop true THEN ;
1.43 pazsan 2152:
1.44 pazsan 2153: : doer? ( -- flag ) \ name
1.103 jwilke 2154: Ghost >magic @ <do:> = ;
1.44 pazsan 2155:
1.43 pazsan 2156: : skip-defs ( -- )
2157: BEGIN refill WHILE source -trailing nip 0= UNTIL THEN ;
2158:
1.28 pazsan 2159: \ Target header creation
2160:
1.54 pazsan 2161: Variable NoHeaderFlag
2162: NoHeaderFlag off
1.1 anton 2163:
1.54 pazsan 2164: : 0.r ( n1 n2 -- )
2165: base @ >r hex
2166: 0 swap <# 0 ?DO # LOOP #> type
2167: r> base ! ;
1.84 jwilke 2168:
2169: : .sym ( adr len -- )
2170: \G escapes / and \ to produce sed output
1.52 jwilke 2171: bounds
2172: DO I c@ dup
1.77 jwilke 2173: CASE [char] / OF drop ." \/" ENDOF
2174: [char] \ OF drop ." \\" ENDOF
1.52 jwilke 2175: dup OF emit ENDOF
2176: ENDCASE
1.54 pazsan 2177: LOOP ;
1.52 jwilke 2178:
1.103 jwilke 2179: Defer setup-execution-semantics
2180: 0 Value lastghost
2181:
2182: : (THeader ( "name" -- ghost )
1.54 pazsan 2183: \ >in @ bl word count type 2 spaces >in !
2184: \ wordheaders will always be compiled to rom
2185: switchrom
2186: \ build header in target
2187: NoHeaderFlag @
2188: IF NoHeaderFlag off
2189: ELSE
2190: T align H view,
1.78 jwilke 2191: tlast @ dup 0> IF tcell - THEN T A, H there tlast !
1.54 pazsan 2192: 1 headers-named +! \ Statistic
2193: >in @ T name, H >in !
2194: THEN
2195: T cfalign here H tlastcfa !
1.84 jwilke 2196: \ Old Symbol table sed-script
1.54 pazsan 2197: \ >in @ cr ." sym:s/CFA=" there 4 0.r ." /" bl word count .sym ." /g" cr >in !
1.103 jwilke 2198: HeaderGhost
1.84 jwilke 2199: \ output symbol table to extra file
1.123 jwilke 2200: dup >ghostname there symentry
1.103 jwilke 2201: dup Last-Header-Ghost ! dup to lastghost
1.54 pazsan 2202: dup >magic ^imm ! \ a pointer for immediate
1.105 jwilke 2203: alias-mask flag!
1.103 jwilke 2204: cross-doc-entry cross-tag-entry
2205: setup-execution-semantics
2206: ;
1.1 anton 2207:
1.52 jwilke 2208: \ this is the resolver information from ":"
2209: \ resolving is done by ";"
1.103 jwilke 2210: Variable ;Resolve 1 cells allot
2211:
2212: : hereresolve ( ghost -- )
2213: there resolve 0 ;Resolve ! ;
1.1 anton 2214:
1.11 pazsan 2215: : Theader ( "name" -- ghost )
1.103 jwilke 2216: (THeader dup hereresolve ;
2217:
2218: Variable aprim-nr -20 aprim-nr !
2219:
2220: : copy-execution-semantics ( ghost-from ghost-dest -- )
2221: >r
2222: dup >exec @ r@ >exec !
1.117 pazsan 2223: dup >comp @ r@ >comp !
1.103 jwilke 2224: dup >exec2 @ r@ >exec2 !
2225: dup >exec-compile @ r@ >exec-compile !
2226: dup >ghost-xt @ r@ >ghost-xt !
2227: dup >created @ r@ >created !
2228: rdrop drop ;
1.1 anton 2229:
2230: >TARGET
1.103 jwilke 2231:
1.1 anton 2232: : Alias ( cfa -- ) \ name
1.103 jwilke 2233: >in @ skip? IF 2drop EXIT THEN >in !
2234: (THeader ( S xt ghost )
1.105 jwilke 2235: 2dup swap xt>ghost swap copy-execution-semantics
2236: over resolve T A, H alias-mask flag! ;
1.103 jwilke 2237:
2238: Variable last-prim-ghost
2239: 0 last-prim-ghost !
2240:
2241: : asmprimname, ( ghost -- : name )
2242: dup last-prim-ghost !
2243: >r
2244: here bl word count string, r@ >asm-name !
2245: aprim-nr @ r> >asm-dummyaddr ! ;
2246:
2247: Defer setup-prim-semantics
2248:
1.112 jwilke 2249: : mapprim ( "forthname" "asmlabel" -- )
1.103 jwilke 2250: THeader -1 aprim-nr +! aprim-nr @ T A, H
2251: asmprimname,
2252: setup-prim-semantics ;
2253:
1.112 jwilke 2254: : mapprim: ( "forthname" "asmlabel" -- )
1.103 jwilke 2255: -1 aprim-nr +! aprim-nr @
1.122 jwilke 2256: Ghost tuck swap resolve-noforwards <do:> swap tuck >magic !
1.103 jwilke 2257: asmprimname, ;
2258:
1.119 pazsan 2259: : Doer: ( cfa -- ) \ name
1.103 jwilke 2260: >in @ skip? IF 2drop EXIT THEN >in !
2261: dup 0< s" prims" T $has? H 0= and
2262: IF
2263: .sourcepos ." needs doer: " >in @ bl word count type >in ! cr
2264: THEN
1.119 pazsan 2265: Ghost
1.122 jwilke 2266: tuck swap resolve-noforwards <do:> swap >magic ! ;
1.64 pazsan 2267:
2268: Variable prim#
2269: : first-primitive ( n -- ) prim# ! ;
2270: : Primitive ( -- ) \ name
1.117 pazsan 2271: >in @ skip? IF drop EXIT THEN >in !
2272: s" prims" T $has? H 0=
1.103 jwilke 2273: IF
2274: .sourcepos ." needs prim: " >in @ bl word count type >in ! cr
2275: THEN
2276: prim# @ (THeader ( S xt ghost )
1.121 jwilke 2277: ['] prim-resolved over >comp !
1.105 jwilke 2278: dup >ghost-flags <primitive> set-flag
1.122 jwilke 2279: over resolve-noforwards T A, H alias-mask flag!
1.103 jwilke 2280: -1 prim# +! ;
1.1 anton 2281: >CROSS
2282:
2283: \ Conditionals and Comments 11may93jaw
2284:
1.103 jwilke 2285: \G saves the existing cond action, this is used for redefining in
2286: \G instant
2287: Variable cond-xt-old
2288:
2289: : cond-target ( -- )
2290: \G Compiles semantic of redefined cond into new one
2291: cond-xt-old @ compile, ; immediate restrict
2292:
1.1 anton 2293: : ;Cond
2294: postpone ;
2295: swap ! ; immediate
2296:
1.103 jwilke 2297: : Cond: ( "name" -- )
2298: \g defines a conditional or another word that must
2299: \g be executed directly while compiling
2300: \g these words have no interpretative semantics by default
2301: Ghost
2302: >exec-compile
2303: dup @ cond-xt-old !
1.1 anton 2304: :NONAME ;
2305:
2306:
2307: : Comment ( -- )
1.103 jwilke 2308: >in @ Ghost swap >in ! ' swap
2309: 2dup >exec-compile ! >exec ! ;
1.1 anton 2310:
2311: Comment ( Comment \
2312:
2313: \ compile 10may93jaw
2314:
1.103 jwilke 2315: : compile ( "name" -- ) \ name
1.115 jwilke 2316: findghost
1.103 jwilke 2317: dup >exec-compile @ ?dup
2318: IF nip compile,
2319: ELSE postpone literal postpone gexecute THEN ; immediate restrict
2320:
1.52 jwilke 2321: >TARGET
2322:
1.105 jwilke 2323: : ' ( -- xt )
2324: \G returns the target-cfa of a ghost
1.52 jwilke 2325: bl word gfind 0= ABORT" CROSS: Ghost don't exists"
1.105 jwilke 2326: g>xt ;
1.52 jwilke 2327:
1.103 jwilke 2328: \ FIXME: this works for the current use cases, but is not
2329: \ in all cases correct ;-)
2330: : comp' X ' 0 ;
2331:
1.52 jwilke 2332: Cond: ['] T ' H alit, ;Cond
2333:
2334: >CROSS
2335:
2336: : [T']
2337: \ returns the target-cfa of a ghost, or compiles it as literal
1.115 jwilke 2338: postpone [G']
2339: state @ IF postpone g>xt ELSE g>xt THEN ; immediate
1.42 pazsan 2340:
1.52 jwilke 2341: \ \ threading modell 13dec92py
2342: \ modularized 14jun97jaw
2343:
1.106 jwilke 2344: T 2 cells H Value xt>body
1.52 jwilke 2345:
1.103 jwilke 2346: : (>body) ( cfa -- pfa )
1.105 jwilke 2347: xt>body + ; ' (>body) plugin-of t>body
2348:
2349: : fillcfa ( usedcells -- )
1.106 jwilke 2350: T cells H xt>body swap -
1.105 jwilke 2351: assert1( dup 0 >= )
2352: 0 ?DO 0 X c, tchar +LOOP ;
1.52 jwilke 2353:
1.103 jwilke 2354: : (doer,) ( ghost -- )
1.105 jwilke 2355: addr, 1 fillcfa ; ' (doer,) plugin-of doer,
1.52 jwilke 2356:
1.105 jwilke 2357: : (docol,) ( -- ) [G'] :docol (doer,) ; ' (docol,) plugin-of docol,
1.52 jwilke 2358:
1.121 jwilke 2359: ' NOOP plugin-of ca>native
2360:
1.52 jwilke 2361: : (doprim,) ( -- )
1.105 jwilke 2362: there xt>body + ca>native T a, H 1 fillcfa ; ' (doprim,) plugin-of doprim,
1.52 jwilke 2363:
2364: : (doeshandler,) ( -- )
1.119 pazsan 2365: T cfalign H [G'] :doesjump addr, T 0 , H ; ' (doeshandler,) plugin-of doeshandler,
1.52 jwilke 2366:
2367: : (dodoes,) ( does-action-ghost -- )
1.119 pazsan 2368: ]comp [G'] :dodoes addr, comp[
1.52 jwilke 2369: addr,
1.103 jwilke 2370: \ the relocator in the c engine, does not like the
2371: \ does-address to marked for relocation
2372: [ T e? ec H 0= [IF] ] T here H tcell - reloff [ [THEN] ]
1.105 jwilke 2373: 2 fillcfa ; ' (dodoes,) plugin-of dodoes,
1.52 jwilke 2374:
1.107 jwilke 2375: : (dlit,) ( n -- ) compile lit td, ; ' (dlit,) plugin-of dlit,
2376:
2377: : (lit,) ( n -- ) s>d dlit, ; ' (lit,) plugin-of lit,
1.52 jwilke 2378:
1.67 jwilke 2379: \ if we dont produce relocatable code alit, defaults to lit, jaw
1.84 jwilke 2380: \ this is just for convenience, so we don't have to define alit,
2381: \ seperately for embedded systems....
2382: T has? relocate H
1.67 jwilke 2383: [IF]
1.105 jwilke 2384: : (alit,) ( n -- ) compile lit T a, H ; ' (alit,) plugin-of alit,
1.67 jwilke 2385: [ELSE]
1.105 jwilke 2386: : (alit,) ( n -- ) lit, ; ' (alit,) plugin-of alit,
1.67 jwilke 2387: [THEN]
1.52 jwilke 2388:
1.105 jwilke 2389: : (fini,) compile ;s ; ' (fini,) plugin-of fini,
1.42 pazsan 2390:
1.43 pazsan 2391: [IFUNDEF] (code)
2392: Defer (code)
2393: Defer (end-code)
2394: [THEN]
2395:
1.1 anton 2396: >TARGET
1.43 pazsan 2397: : Code
1.52 jwilke 2398: defempty?
1.121 jwilke 2399: (THeader ( ghost )
2400: ['] prim-resolved over >comp !
1.122 jwilke 2401: there resolve-noforwards
1.121 jwilke 2402:
1.53 jwilke 2403: [ T e? prims H 0= [IF] T e? ITC H [ELSE] true [THEN] ] [IF]
1.52 jwilke 2404: doprim,
1.48 anton 2405: [THEN]
2406: depth (code) ;
1.43 pazsan 2407:
1.121 jwilke 2408: \ FIXME : no-compile -1 ABORT" this ghost is not for compilation" ;
2409:
1.43 pazsan 2410: : Code:
1.52 jwilke 2411: defempty?
1.121 jwilke 2412: Ghost >r
1.123 jwilke 2413: r@ >ghostname there symentry
1.122 jwilke 2414: r@ there ca>native resolve-noforwards
1.121 jwilke 2415: <do:> r@ >magic !
2416: r> drop
1.43 pazsan 2417: depth (code) ;
2418:
2419: : end-code
1.52 jwilke 2420: (end-code)
1.43 pazsan 2421: depth ?dup IF 1- <> ABORT" CROSS: Stack changed"
2422: ELSE true ABORT" CROSS: Stack empty" THEN
1.52 jwilke 2423: ;
1.14 anton 2424:
1.1 anton 2425: >CROSS
1.52 jwilke 2426:
1.1 anton 2427: \ tLiteral 12dec92py
2428:
2429: >TARGET
1.40 pazsan 2430: Cond: \G T-\G ;Cond
2431:
1.105 jwilke 2432: Cond: Literal ( n -- ) lit, ;Cond
1.103 jwilke 2433: Cond: ALiteral ( n -- ) alit, ;Cond
1.1 anton 2434:
2435: : Char ( "<char>" -- ) bl word char+ c@ ;
1.103 jwilke 2436: Cond: [Char] ( "<char>" -- ) Char lit, ;Cond
2437:
1.104 jwilke 2438: tchar 1 = [IF]
1.110 jwilke 2439: Cond: chars ;Cond
1.104 jwilke 2440: [THEN]
1.1 anton 2441:
1.43 pazsan 2442: \ some special literals 27jan97jaw
2443:
2444: Cond: MAXU
1.125 jwilke 2445: -1 s>d dlit,
1.52 jwilke 2446: ;Cond
1.43 pazsan 2447:
1.125 jwilke 2448: tcell 2 = tcell 4 = or tcell 8 = or 0=
2449: [IF]
2450: .( Warning: MINI and MAXI may not work with this host) cr
2451: [THEN]
2452:
1.43 pazsan 2453: Cond: MINI
1.125 jwilke 2454: tcell 2 = IF $8000 ELSE $80000000 THEN 0
2455: tcell 8 = IF swap THEN dlit,
1.52 jwilke 2456: ;Cond
1.43 pazsan 2457:
2458: Cond: MAXI
1.125 jwilke 2459: tcell 2 = IF $7fff ELSE $7fffffff THEN 0
2460: tcell 8 = IF drop -1 swap THEN dlit,
2461: ;Cond
1.43 pazsan 2462:
1.1 anton 2463: >CROSS
1.115 jwilke 2464:
1.1 anton 2465: \ Target compiling loop 12dec92py
2466: \ ">tib trick thrown out 10may93jaw
2467: \ number? defined at the top 11may93jaw
1.77 jwilke 2468: \ replaced >in by save-input
2469:
2470: : discard 0 ?DO drop LOOP ;
1.1 anton 2471:
2472: \ compiled word might leave items on stack!
1.77 jwilke 2473: : tcom ( x1 .. xn n name -- )
2474: \ dup count type space
1.103 jwilke 2475: gfind
2476: IF >r ( discard saved input state ) discard r>
2477: dup >exec-compile @ ?dup
2478: IF nip execute-exec-compile ELSE gexecute THEN
1.77 jwilke 2479: EXIT
2480: THEN
2481: number? dup
2482: IF 0> IF swap lit, THEN lit, discard
1.103 jwilke 2483: ELSE 2drop restore-input throw Ghost gexecute THEN ;
1.1 anton 2484:
2485: \ : ; DOES> 13dec92py
2486: \ ] 9may93py/jaw
2487:
1.115 jwilke 2488: >CROSS
2489:
1.105 jwilke 2490: : compiling-state ( -- )
2491: \G set states to compililng
1.54 pazsan 2492: Compiling comp-state !
1.103 jwilke 2493: \ if we have a state in target, change it with the compile state
1.105 jwilke 2494: [G'] state dup undefined? 0=
2495: IF >ghost-xt @ execute X on ELSE drop THEN ;
2496:
2497: : interpreting-state ( -- )
2498: \G set states to interpreting
2499: \ if target has a state variable, change it according to our state
2500: [G'] state dup undefined? 0=
2501: IF >ghost-xt @ execute X off ELSE drop THEN
2502: Interpreting comp-state ! ;
1.115 jwilke 2503:
2504: >TARGET
1.105 jwilke 2505:
2506: : ]
2507: compiling-state
1.1 anton 2508: BEGIN
1.77 jwilke 2509: BEGIN save-input bl word
2510: dup c@ 0= WHILE drop discard refill 0=
1.1 anton 2511: ABORT" CROSS: End of file while target compiling"
2512: REPEAT
2513: tcom
1.103 jwilke 2514: compiling? 0=
1.1 anton 2515: UNTIL ;
2516:
2517: \ by the way: defining a second interpreter (a compiler-)loop
2518: \ is not allowed if a system should be ans conform
2519:
1.110 jwilke 2520: : (:) ( ghost -- )
2521: \ common factor of : and :noname. Prepare ;Resolve and start definition
2522: ;Resolve ! there ;Resolve cell+ !
2523: docol, ]comp colon-start depth T ] H ;
2524:
1.1 anton 2525: : : ( -- colon-sys ) \ Name
1.52 jwilke 2526: defempty?
2527: constflag off \ don't let this flag work over colon defs
2528: \ just to go sure nothing unwanted happens
1.43 pazsan 2529: >in @ skip? IF drop skip-defs EXIT THEN >in !
1.110 jwilke 2530: (THeader (:) ;
1.1 anton 2531:
1.37 pazsan 2532: : :noname ( -- colon-sys )
1.110 jwilke 2533: X cfalign there
2534: \ define a nameless ghost
2535: here ghostheader dup last-header-ghost ! dup to lastghost
2536: (:) ;
1.37 pazsan 2537:
1.103 jwilke 2538: Cond: EXIT ( -- ) compile ;S ;Cond
1.6 anton 2539:
2540: Cond: ?EXIT ( -- ) 1 abort" CROSS: using ?exit" ;Cond
1.2 pazsan 2541:
1.52 jwilke 2542: >CROSS
2543: : LastXT ;Resolve @ 0= abort" CROSS: no definition for LastXT"
2544: ;Resolve cell+ @ ;
2545:
2546: >TARGET
2547:
1.103 jwilke 2548: Cond: recurse ( -- ) Last-Header-Ghost @ gexecute ;Cond
1.52 jwilke 2549:
1.103 jwilke 2550: Cond: ; ( -- )
1.105 jwilke 2551: depth ?dup
2552: IF 1- <> ABORT" CROSS: Stack changed"
2553: ELSE true ABORT" CROSS: Stack empty"
2554: THEN
2555: colon-end
2556: fini,
2557: comp[
2558: ;Resolve @
1.118 pazsan 2559: IF ['] colon-resolved ;Resolve @ >comp !
2560: ;Resolve @ ;Resolve cell+ @ resolve
1.105 jwilke 2561: THEN
2562: interpreting-state
2563: ;Cond
2564:
2565: Cond: [ ( -- ) interpreting-state ;Cond
1.1 anton 2566:
2567: >CROSS
1.54 pazsan 2568:
1.117 pazsan 2569: 0 Value created
1.54 pazsan 2570:
1.52 jwilke 2571: : !does ( does-action -- )
1.54 pazsan 2572: tlastcfa @ [G'] :dovar killref
1.117 pazsan 2573: >space here >r ghostheader space>
1.121 jwilke 2574: ['] colon-resolved r@ >comp !
1.117 pazsan 2575: r@ created >do:ghost ! r@ swap resolve
2576: r> tlastcfa @ >tempdp dodoes, tempdp> ;
1.103 jwilke 2577:
2578: Defer instant-interpret-does>-hook
2579:
1.118 pazsan 2580: : does-resolved ( ghost -- )
2581: compile does-exec g>xt T a, H ;
2582:
1.103 jwilke 2583: : resolve-does>-part ( -- )
2584: \ resolve words made by builders
1.105 jwilke 2585: Last-Header-Ghost @ >do:ghost @ ?dup
1.117 pazsan 2586: IF there resolve THEN ;
1.103 jwilke 2587:
1.1 anton 2588: >TARGET
1.103 jwilke 2589: Cond: DOES>
2590: compile (does>) doeshandler,
2591: resolve-does>-part
1.1 anton 2592: ;Cond
1.103 jwilke 2593:
1.118 pazsan 2594: : DOES>
2595: ['] does-resolved created >comp !
2596: switchrom doeshandler, T here H !does
2597: instant-interpret-does>-hook
2598: depth T ] H ;
1.1 anton 2599:
2600: >CROSS
1.108 jwilke 2601: \ Creation 01nov92py
1.1 anton 2602:
2603: \ Builder 11may93jaw
2604:
1.108 jwilke 2605: 0 Value built
2606:
1.105 jwilke 2607: : Builder ( Create-xt do-ghost "name" -- )
1.52 jwilke 2608: \ builds up a builder in current vocabulary
2609: \ create-xt is executed when word is interpreted
1.106 jwilke 2610: \ do:-xt is executed when the created word from builder is executed
1.105 jwilke 2611: \ for do:-xt an additional entry after the normal ghost-entrys is used
1.52 jwilke 2612:
1.109 jwilke 2613: ghost to built
1.108 jwilke 2614: built >created @ 0= IF
2615: built >created on
2616: THEN ;
1.1 anton 2617:
1.52 jwilke 2618: : gdoes, ( ghost -- )
2619: \ makes the codefield for a word that is built
1.103 jwilke 2620: >do:ghost @ dup undefined? 0=
1.52 jwilke 2621: IF
1.42 pazsan 2622: dup >magic @ <do:> =
1.54 pazsan 2623: IF doer,
2624: ELSE dodoes,
2625: THEN
2626: EXIT
1.52 jwilke 2627: THEN
2628: \ compile :dodoes gexecute
2629: \ T here H tcell - reloff
1.54 pazsan 2630: 2 refered
2631: 0 fillcfa
2632: ;
1.1 anton 2633:
1.103 jwilke 2634: : takeover-x-semantics ( S constructor-ghost new-ghost -- )
1.117 pazsan 2635: \g stores execution semantic and compilation semantic in the built word
2636: swap >do:ghost @ 2dup swap >do:ghost !
1.110 jwilke 2637: \ we use the >exec2 field for the semantic of a created word,
2638: \ using exec or exec2 makes no difference for normal cross-compilation
2639: \ but is usefull for instant where the exec field is already
2640: \ defined (e.g. Vocabularies)
1.105 jwilke 2641: 2dup >exec @ swap >exec2 !
2642: >comp @ swap >comp ! ;
1.103 jwilke 2643:
1.118 pazsan 2644: 0 Value createhere
2645:
2646: : create-resolve ( -- )
2647: created createhere resolve 0 ;Resolve ! ;
2648: : create-resolve-immediate ( -- )
2649: create-resolve T immediate H ;
2650:
1.52 jwilke 2651: : TCreate ( <name> -- )
2652: create-forward-warn
2653: IF ['] reswarn-forward IS resolve-warning THEN
1.103 jwilke 2654: executed-ghost @ (Theader
1.117 pazsan 2655: dup >created on dup to created
1.118 pazsan 2656: 2dup takeover-x-semantics
2657: there to createhere drop gdoes, ;
1.52 jwilke 2658:
2659: : RTCreate ( <name> -- )
2660: \ creates a new word with code-field in ram
2661: create-forward-warn
2662: IF ['] reswarn-forward IS resolve-warning THEN
2663: \ make Alias
1.103 jwilke 2664: executed-ghost @ (THeader
1.118 pazsan 2665: dup >created on dup to created
1.103 jwilke 2666: 2dup takeover-x-semantics
1.105 jwilke 2667: there 0 T a, H alias-mask flag!
1.103 jwilke 2668: \ store poiter to code-field
1.52 jwilke 2669: switchram T cfalign H
2670: there swap T ! H
2671: there tlastcfa !
1.118 pazsan 2672: there to createhere drop gdoes, ;
1.1 anton 2673:
2674: : Build: ( -- [xt] [colon-sys] )
1.52 jwilke 2675: :noname postpone TCreate ;
2676:
2677: : BuildSmart: ( -- [xt] [colon-sys] )
2678: :noname
1.53 jwilke 2679: [ T has? rom H [IF] ]
1.52 jwilke 2680: postpone RTCreate
2681: [ [ELSE] ]
2682: postpone TCreate
2683: [ [THEN] ] ;
1.1 anton 2684:
1.108 jwilke 2685: : ;Build
1.118 pazsan 2686: postpone create-resolve postpone ; built >exec ! ; immediate
2687:
2688: : ;Build-immediate
2689: postpone create-resolve-immediate
2690: postpone ; built >exec ! ; immediate
1.108 jwilke 2691:
1.1 anton 2692: : gdoes> ( ghost -- addr flag )
1.110 jwilke 2693: executed-ghost @ g>body ;
1.1 anton 2694:
2695: \ DO: ;DO 11may93jaw
2696:
1.108 jwilke 2697: : do:ghost! ( ghost -- ) built >do:ghost ! ;
2698: : doexec! ( xt -- ) built >do:ghost @ >exec ! ;
2699:
2700: : DO: ( -- [xt] [colon-sys] )
2701: here ghostheader do:ghost!
1.110 jwilke 2702: :noname postpone gdoes> ;
1.1 anton 2703:
1.108 jwilke 2704: : by: ( -- [xt] [colon-sys] ) \ name
2705: Ghost do:ghost!
1.110 jwilke 2706: :noname postpone gdoes> ;
1.42 pazsan 2707:
1.108 jwilke 2708: : ;DO ( [xt] [colon-sys] -- )
2709: postpone ; doexec! ; immediate
1.1 anton 2710:
1.109 jwilke 2711: : by ( -- ) \ Name
1.108 jwilke 2712: Ghost >do:ghost @ do:ghost! ;
1.107 jwilke 2713:
1.109 jwilke 2714: : compile: ( --[xt] [colon-sys] )
1.107 jwilke 2715: \G defines a compile time action for created words
2716: \G by this builder
2717: :noname ;
2718:
1.109 jwilke 2719: : ;compile ( [xt] [colon-sys] -- )
2720: postpone ; built >do:ghost @ >comp ! ; immediate
1.107 jwilke 2721:
1.1 anton 2722: \ Variables and Constants 05dec92py
2723:
1.108 jwilke 2724: Builder (Constant)
2725: Build: ( n -- ) ;Build
1.103 jwilke 2726: by: :docon ( target-body-addr -- n ) T @ H ;DO
1.52 jwilke 2727:
1.108 jwilke 2728: Builder Constant
2729: Build: ( n -- ) T , H ;Build
1.52 jwilke 2730: by (Constant)
2731:
1.108 jwilke 2732: Builder AConstant
2733: Build: ( n -- ) T A, H ;Build
1.52 jwilke 2734: by (Constant)
2735:
1.108 jwilke 2736: Builder 2Constant
2737: Build: ( d -- ) T , , H ;Build
1.52 jwilke 2738: DO: ( ghost -- d ) T dup cell+ @ swap @ H ;DO
2739:
1.108 jwilke 2740: Builder Create
2741: BuildSmart: ;Build
1.103 jwilke 2742: by: :dovar ( target-body-addr -- addr ) ;DO
1.1 anton 2743:
1.108 jwilke 2744: Builder Variable
1.53 jwilke 2745: T has? rom H [IF]
1.108 jwilke 2746: Build: ( -- ) T here 0 A, H switchram T align here swap ! 0 , H ( switchrom ) ;Build
1.52 jwilke 2747: by (Constant)
2748: [ELSE]
1.108 jwilke 2749: Build: T 0 , H ;Build
1.1 anton 2750: by Create
1.52 jwilke 2751: [THEN]
1.1 anton 2752:
1.108 jwilke 2753: Builder 2Variable
1.53 jwilke 2754: T has? rom H [IF]
1.108 jwilke 2755: Build: ( -- ) T here 0 A, H switchram T align here swap ! 0 , 0 , H ( switchrom ) ;Build
1.54 pazsan 2756: by (Constant)
2757: [ELSE]
1.108 jwilke 2758: Build: T 0 , 0 , H ;Build
1.54 pazsan 2759: by Create
2760: [THEN]
2761:
1.108 jwilke 2762: Builder AVariable
1.54 pazsan 2763: T has? rom H [IF]
1.108 jwilke 2764: Build: ( -- ) T here 0 A, H switchram T align here swap ! 0 A, H ( switchrom ) ;Build
1.52 jwilke 2765: by (Constant)
2766: [ELSE]
1.108 jwilke 2767: Build: T 0 A, H ;Build
1.1 anton 2768: by Create
1.52 jwilke 2769: [THEN]
1.1 anton 2770:
1.3 pazsan 2771: \ User variables 04may94py
2772:
2773: Variable tup 0 tup !
2774: Variable tudp 0 tudp !
1.78 jwilke 2775:
1.3 pazsan 2776: : u, ( n -- udp )
2777: tup @ tudp @ + T ! H
1.19 pazsan 2778: tudp @ dup T cell+ H tudp ! ;
1.78 jwilke 2779:
1.3 pazsan 2780: : au, ( n -- udp )
2781: tup @ tudp @ + T A! H
1.19 pazsan 2782: tudp @ dup T cell+ H tudp ! ;
1.78 jwilke 2783:
1.108 jwilke 2784: Builder User
2785: Build: 0 u, X , ;Build
1.78 jwilke 2786: by: :douser ( ghost -- up-addr ) X @ tup @ + ;DO
1.1 anton 2787:
1.108 jwilke 2788: Builder 2User
2789: Build: 0 u, X , 0 u, drop ;Build
1.3 pazsan 2790: by User
1.1 anton 2791:
1.108 jwilke 2792: Builder AUser
2793: Build: 0 au, X , ;Build
1.3 pazsan 2794: by User
1.1 anton 2795:
1.108 jwilke 2796: Builder (Value)
2797: Build: ( n -- ) ;Build
2798: by: :docon ( target-body-addr -- n ) T @ H ;DO
2799:
1.1 anton 2800: Builder Value
1.108 jwilke 2801: BuildSmart: T , H ;Build
2802: by (Value)
1.1 anton 2803:
1.32 pazsan 2804: Builder AValue
1.108 jwilke 2805: BuildSmart: T A, H ;Build
2806: by (Value)
1.32 pazsan 2807:
1.103 jwilke 2808: Defer texecute
2809:
1.108 jwilke 2810: Builder Defer
2811: BuildSmart: ( -- ) [T'] noop T A, H ;Build
1.103 jwilke 2812: by: :dodefer ( ghost -- ) X @ texecute ;DO
1.37 pazsan 2813:
1.108 jwilke 2814: Builder interpret/compile:
1.118 pazsan 2815: Build: ( inter comp -- ) swap T A, A, H ;Build-immediate
1.37 pazsan 2816: DO: ( ghost -- ) ABORT" CROSS: Don't execute" ;DO
1.24 pazsan 2817:
2818: \ Sturctures 23feb95py
2819:
2820: : nalign ( addr1 n -- addr2 )
2821: \ addr2 is the aligned version of addr1 wrt the alignment size n
2822: 1- tuck + swap invert and ;
1.109 jwilke 2823:
1.24 pazsan 2824:
1.108 jwilke 2825: Builder (Field)
2826: Build: ;Build
1.44 pazsan 2827: by: :dofield T @ H + ;DO
2828:
1.108 jwilke 2829: Builder Field
1.51 anton 2830: Build: ( align1 offset1 align size "name" -- align2 offset2 )
2831: rot dup T , H ( align1 align size offset1 )
1.108 jwilke 2832: + >r nalign r> ;Build
1.44 pazsan 2833: by (Field)
1.24 pazsan 2834:
1.109 jwilke 2835: >TARGET
1.51 anton 2836: : struct T 1 chars 0 H ;
1.24 pazsan 2837: : end-struct T 2Constant H ;
2838:
1.52 jwilke 2839: : cell% ( n -- size align )
1.51 anton 2840: T 1 cells H dup ;
1.109 jwilke 2841: >CROSS
1.88 pazsan 2842:
1.105 jwilke 2843: \ Input-Methods 01py
1.103 jwilke 2844:
1.108 jwilke 2845: Builder input-method
2846: Build: ( m v -- m' v ) dup T , cell+ H ;Build
1.88 pazsan 2847: DO: abort" Not in cross mode" ;DO
2848:
1.108 jwilke 2849: Builder input-var
2850: Build: ( m v size -- m v' ) over T , H + ;Build
1.88 pazsan 2851: DO: abort" Not in cross mode" ;DO
1.24 pazsan 2852:
1.108 jwilke 2853: \ Peephole optimization 05sep01jaw
2854:
2855: \ this section defines different compilation
2856: \ actions for created words
2857: \ this will help the peephole optimizer
1.121 jwilke 2858: \ I (jaw) took this from bernds latest cross-compiler
1.108 jwilke 2859: \ changes but seperated it from the original
2860: \ Builder words. The final plan is to put this
2861: \ into a seperate file, together with the peephole
2862: \ optimizer for cross
2863:
2864:
2865: T has? peephole H [IF]
2866:
1.109 jwilke 2867: >CROSS
1.118 pazsan 2868:
1.109 jwilke 2869: : (callc) compile call T >body a, H ; ' (callc) plugin-of colon,
1.121 jwilke 2870: : (callcm) T here 0 a, 0 a, H ; ' (callcm) plugin-of colonmark,
1.118 pazsan 2871: : (call-res) >tempdp resolved gexecute tempdp> drop ;
2872: ' (call-res) plugin-of colon-resolve
1.121 jwilke 2873: : (pprim) dup 0< IF $4000 - ELSE
2874: cr ." wrong usage of (prim) "
2875: dup gdiscover IF .ghost ELSE . THEN cr -1 throw THEN
2876: T a, H ; ' (pprim) plugin-of prim,
1.109 jwilke 2877:
2878: \ if we want this, we have to spilt aconstant
2879: \ and constant!!
2880: \ Builder (Constant)
2881: \ compile: g>body X @ lit, ;compile
1.108 jwilke 2882:
2883: Builder (Constant)
1.118 pazsan 2884: compile: g>body compile lit@ T a, H ;compile
1.108 jwilke 2885:
2886: Builder (Value)
1.118 pazsan 2887: compile: g>body compile lit@ T a, H ;compile
1.108 jwilke 2888:
2889: \ this changes also Variable, AVariable and 2Variable
2890: Builder Create
1.117 pazsan 2891: compile: g>body alit, ;compile
1.108 jwilke 2892:
2893: Builder User
2894: compile: g>body compile useraddr T @ , H ;compile
2895:
2896: Builder Defer
1.118 pazsan 2897: compile: g>body compile lit-perform T A, H ;compile
1.102 jwilke 2898:
1.108 jwilke 2899: Builder (Field)
1.118 pazsan 2900: compile: g>body T @ H compile lit+ T , H ;compile
1.117 pazsan 2901:
2902: Builder interpret/compile:
2903: compile: does-resolved ;compile
2904:
2905: Builder input-method
2906: compile: does-resolved ;compile
2907:
2908: Builder input-var
2909: compile: does-resolved ;compile
1.102 jwilke 2910:
1.108 jwilke 2911: [THEN]
1.103 jwilke 2912:
1.52 jwilke 2913: \ structural conditionals 17dec92py
2914:
2915: >CROSS
1.103 jwilke 2916: : (ncontrols?) ( n -- )
2917: \g We expect n open control structures
2918: depth over u<=
2919: ABORT" CROSS: unstructured, stack underflow"
2920: 0 ?DO I pick 0=
2921: ABORT" CROSS: unstructured"
2922: LOOP ; ' (ncontrols?) plugin-of ncontrols?
2923:
2924: \ : ?struc ( flag -- ) ABORT" CROSS: unstructured " ;
2925: \ : sys? ( sys -- sys ) dup 0= ?struc ;
2926:
1.52 jwilke 2927: : >mark ( -- sys ) T here ( dup ." M" hex. ) 0 , H ;
2928:
1.78 jwilke 2929: : branchoffset ( src dest -- ) - tchar / ; \ ?? jaw
1.52 jwilke 2930:
1.78 jwilke 2931: :noname compile branch X here branchoffset X , ;
1.54 pazsan 2932: IS branch, ( target-addr -- )
1.78 jwilke 2933: :noname compile ?branch X here branchoffset X , ;
1.54 pazsan 2934: IS ?branch, ( target-addr -- )
2935: :noname compile branch T here 0 , H ;
2936: IS branchmark, ( -- branchtoken )
2937: :noname compile ?branch T here 0 , H ;
2938: IS ?branchmark, ( -- branchtoken )
2939: :noname T here 0 , H ;
2940: IS ?domark, ( -- branchtoken )
1.78 jwilke 2941: :noname dup X @ ?struc X here over branchoffset swap X ! ;
1.54 pazsan 2942: IS branchtoresolve, ( branchtoken -- )
1.78 jwilke 2943: :noname branchto, X here ;
1.54 pazsan 2944: IS branchtomark, ( -- target-addr )
1.52 jwilke 2945:
2946: >TARGET
2947:
2948: \ Structural Conditionals 12dec92py
2949:
1.103 jwilke 2950: \ CLEANUP Cond: BUT sys? swap ;Cond
2951: \ CLEANUP Cond: YET sys? dup ;Cond
1.52 jwilke 2952:
2953: >CROSS
2954:
1.78 jwilke 2955: Variable tleavings 0 tleavings !
1.52 jwilke 2956:
1.129 ! jwilke 2957: : (done) ( do-addr -- )
! 2958: \G resolve branches of leave and ?leave and ?do
! 2959: \G do-addr is the address of the beginning of our
! 2960: \G loop so we can take care of nested loops
1.54 pazsan 2961: tleavings @
2962: BEGIN dup
2963: WHILE
2964: >r dup r@ cell+ @ \ address of branch
2965: u> 0= \ lower than DO?
2966: WHILE
2967: r@ 2 cells + @ \ branch token
2968: branchtoresolve,
2969: r@ @ r> free throw
2970: REPEAT r> THEN
2971: tleavings ! drop ;
2972:
1.53 jwilke 2973: >TARGET
2974:
1.103 jwilke 2975: \ What for? ANS? JAW Cond: DONE ( addr -- ) (done) ;Cond
1.53 jwilke 2976:
2977: >CROSS
1.54 pazsan 2978: : (leave) ( branchtoken -- )
1.53 jwilke 2979: 3 cells allocate throw >r
2980: T here H r@ cell+ !
2981: r@ 2 cells + !
2982: tleavings @ r@ !
2983: r> tleavings ! ;
2984: >TARGET
2985:
1.103 jwilke 2986: : (leave,) ( -- )
2987: branchmark, (leave) ; ' (leave,) plugin-of leave,
2988:
2989: : (?leave,) ( -- )
2990: compile 0= ?branchmark, (leave) ; ' (?leave,) plugin-of ?leave,
2991:
2992: Cond: LEAVE leave, ;Cond
2993: Cond: ?LEAVE ?leave, ;Cond
1.53 jwilke 2994:
1.54 pazsan 2995: >CROSS
2996: \ !!JW ToDo : Move to general tools section
2997:
2998: : to1 ( x1 x2 xn n -- addr )
1.103 jwilke 2999: \G packs n stack elements in am allocated memory region
1.54 pazsan 3000: dup dup 1+ cells allocate throw dup >r swap 1+
3001: 0 DO tuck ! cell+ LOOP
3002: drop r> ;
1.103 jwilke 3003:
1.54 pazsan 3004: : 1to ( addr -- x1 x2 xn )
3005: \G unpacks the elements saved by to1
3006: dup @ swap over cells + swap
3007: 0 DO dup @ swap 1 cells - LOOP
3008: free throw ;
3009:
1.129 ! jwilke 3010: : loop] ( target-addr -- )
! 3011: branchto,
! 3012: dup X here branchoffset X ,
! 3013: tcell - (done) ;
1.54 pazsan 3014:
3015: : skiploop] ?dup IF branchto, branchtoresolve, THEN ;
3016:
3017: >TARGET
3018:
1.52 jwilke 3019: \ Structural Conditionals 12dec92py
3020:
1.103 jwilke 3021: : (cs-swap) ( x1 x2 -- x2 x1 )
3022: swap ; ' (cs-swap) plugin-of cs-swap
3023:
3024: : (ahead,) branchmark, ; ' (ahead,) plugin-of ahead,
3025:
3026: : (if,) ?branchmark, ; ' (if,) plugin-of if,
3027:
3028: : (then,) branchto, branchtoresolve, ; ' (then,) plugin-of then,
3029:
3030: : (else,) ( ahead ) branchmark,
3031: swap
3032: ( then ) branchto, branchtoresolve, ; ' (else,) plugin-of else,
3033:
3034: : (begin,) branchtomark, ; ' (begin,) plugin-of begin,
3035:
3036: : (while,) ( if ) ?branchmark,
3037: swap ; ' (while,) plugin-of while,
3038:
3039: : (again,) branch, ; ' (again,) plugin-of again,
3040:
3041: : (until,) ?branch, ; ' (until,) plugin-of until,
3042:
3043: : (repeat,) ( again ) branch,
3044: ( then ) branchto, branchtoresolve, ; ' (repeat,) plugin-of repeat,
3045:
3046: : (case,) ( -- n )
3047: 0 ; ' (case,) plugin-of case,
3048:
3049: : (of,) ( n -- x1 n )
3050: 1+ >r
3051: compile over compile =
3052: if, compile drop r> ; ' (of,) plugin-of of,
3053:
3054: : (endof,) ( x1 n -- x2 n )
3055: >r 1 ncontrols? else, r> ; ' (endof,) plugin-of endof,
3056:
3057: : (endcase,) ( x1 .. xn n -- )
3058: compile drop 0 ?DO 1 ncontrols? then, LOOP ; ' (endcase,) plugin-of endcase,
3059:
1.53 jwilke 3060: >TARGET
1.103 jwilke 3061: Cond: AHEAD ahead, ;Cond
3062: Cond: IF if, ;Cond
3063: Cond: THEN 1 ncontrols? then, ;Cond
3064: Cond: ENDIF 1 ncontrols? then, ;Cond
3065: Cond: ELSE 1 ncontrols? else, ;Cond
3066:
3067: Cond: BEGIN begin, ;Cond
3068: Cond: WHILE 1 ncontrols? while, ;Cond
3069: Cond: AGAIN 1 ncontrols? again, ;Cond
3070: Cond: UNTIL 1 ncontrols? until, ;Cond
3071: Cond: REPEAT 2 ncontrols? repeat, ;Cond
3072:
3073: Cond: CASE case, ;Cond
3074: Cond: OF of, ;Cond
3075: Cond: ENDOF endof, ;Cond
3076: Cond: ENDCASE endcase, ;Cond
1.1 anton 3077:
3078: \ Structural Conditionals 12dec92py
3079:
1.103 jwilke 3080: : (do,) ( -- target-addr )
3081: \ ?? i think 0 is too much! jaw
1.54 pazsan 3082: 0 compile (do)
1.103 jwilke 3083: branchtomark, 2 to1 ; ' (do,) plugin-of do,
1.54 pazsan 3084:
1.103 jwilke 3085: \ alternative for if no ?do
3086: \ : (do,)
1.54 pazsan 3087: \ compile 2dup compile = compile IF
3088: \ compile 2drop compile ELSE
3089: \ compile (do) branchtomark, 2 to1 ;
3090:
1.103 jwilke 3091: : (?do,) ( -- target-addr )
1.54 pazsan 3092: 0 compile (?do) ?domark, (leave)
1.103 jwilke 3093: branchtomark, 2 to1 ; ' (?do,) plugin-of ?do,
3094:
3095: : (for,) ( -- target-addr )
3096: compile (for) branchtomark, ; ' (for,) plugin-of for,
3097:
3098: : (loop,) ( target-addr -- )
3099: 1to compile (loop) loop]
3100: compile unloop skiploop] ; ' (loop,) plugin-of loop,
3101:
3102: : (+loop,) ( target-addr -- )
3103: 1to compile (+loop) loop]
3104: compile unloop skiploop] ; ' (+loop,) plugin-of +loop,
3105:
3106: : (next,)
3107: compile (next) loop] compile unloop ; ' (next,) plugin-of next,
3108:
3109: Cond: DO do, ;Cond
3110: Cond: ?DO ?do, ;Cond
3111: Cond: FOR for, ;Cond
3112:
3113: Cond: LOOP 1 ncontrols? loop, ;Cond
3114: Cond: +LOOP 1 ncontrols? +loop, ;Cond
3115: Cond: NEXT 1 ncontrols? next, ;Cond
1.129 ! jwilke 3116:
! 3117: \ Absoulte branches 26sep02jaw
! 3118:
! 3119: \ This section defined different semantics for
! 3120: \ conditionals, using and compiling absolute branches
! 3121:
! 3122: X has? abranch [IF]
! 3123:
! 3124: Ghost abranch drop
! 3125: Ghost a?branch drop
! 3126: Ghost a(?do) drop
! 3127: Ghost a(do) drop
! 3128: Ghost a(next) drop
! 3129: Ghost a(+loop) drop
! 3130: Ghost a(loop) drop
! 3131:
! 3132: :noname compile abranch X a, ; plugin-of branch,
! 3133:
! 3134: :noname compile a?branch X a, ; plugin-of ?branch,
! 3135:
! 3136: :noname compile abranch T here 0 a, H ; plugin-of branchmark,
! 3137:
! 3138: :noname compile a?branch T here 0 a, H ; plugin-of ?branchmark,
! 3139:
! 3140: :noname
! 3141: dup X @ ABORT" CROSS: branch already resolved"
! 3142: X here swap X a! ; plugin-of branchtoresolve,
! 3143:
! 3144: :noname
! 3145: 0 compile a(?do) ?domark, (leave)
! 3146: branchtomark, 2 to1 ; plugin-of ?do,
! 3147:
! 3148: : aloop] ( target-addr -- )
! 3149: branchto,
! 3150: dup X a,
! 3151: tcell - (done) ;
! 3152:
! 3153: :noname
! 3154: 1to compile a(loop) aloop]
! 3155: compile unloop skiploop] ; plugin-of loop,
! 3156:
! 3157: :noname
! 3158: 1to compile a(+loop) aloop]
! 3159: compile unloop skiploop] ; plugin-of +loop,
! 3160:
! 3161: :noname
! 3162: compile a(next) aloop] compile unloop ; plugin-of next,
! 3163:
! 3164: [THEN]
1.52 jwilke 3165:
1.1 anton 3166: \ String words 23feb93py
3167:
1.103 jwilke 3168: : ," [char] " parse ht-string, X align ;
1.1 anton 3169:
1.103 jwilke 3170: Cond: ." compile (.") T ," H ;Cond
3171: Cond: S" compile (S") T ," H ;Cond
3172: Cond: C" compile (C") T ," H ;Cond
3173: Cond: ABORT" compile (ABORT") T ," H ;Cond
1.1 anton 3174:
3175: Cond: IS T ' >body H compile ALiteral compile ! ;Cond
1.66 pazsan 3176: : IS T >address ' >body ! H ;
1.9 pazsan 3177: Cond: TO T ' >body H compile ALiteral compile ! ;Cond
3178: : TO T ' >body ! H ;
1.1 anton 3179:
1.52 jwilke 3180: Cond: defers T ' >body @ compile, H ;Cond
3181:
1.1 anton 3182: \ LINKED ERR" ENV" 2ENV" 18may93jaw
3183:
3184: \ linked list primitive
1.79 jwilke 3185: : linked X here over X @ X A, swap X ! ;
1.52 jwilke 3186: : chained T linked A, H ;
1.1 anton 3187:
3188: : err" s" ErrLink linked" evaluate T , H
1.103 jwilke 3189: [char] " parse ht-string, X align ;
1.1 anton 3190:
3191: : env" [char] " parse s" EnvLink linked" evaluate
1.103 jwilke 3192: ht-string, X align X , ;
1.1 anton 3193:
3194: : 2env" [char] " parse s" EnvLink linked" evaluate
1.103 jwilke 3195: here >r ht-string, X align X , X ,
1.1 anton 3196: r> dup T c@ H 80 and swap T c! H ;
3197:
3198: \ compile must be last 22feb93py
3199:
1.103 jwilke 3200: Cond: [compile] ( -- ) \ name
3201: \g For immediate words, works even if forward reference
3202: bl word gfind 0= ABORT" CROSS: Can't compile"
3203: (gexecute) ;Cond
3204:
3205: Cond: postpone ( -- ) \ name
3206: bl word gfind 0= ABORT" CROSS: Can't compile"
3207: dup >magic @ <fwd> =
3208: ABORT" CROSS: Can't postpone on forward declaration"
3209: dup >magic @ <imm> =
3210: IF (gexecute)
3211: ELSE compile (compile) addr, THEN ;Cond
1.54 pazsan 3212:
1.77 jwilke 3213: \ save-cross 17mar93py
3214:
3215: hex
3216:
3217: >CROSS
3218: Create magic s" Gforth2x" here over allot swap move
3219:
3220: bigendian 1+ \ strangely, in magic big=0, little=1
3221: tcell 1 = 0 and or
3222: tcell 2 = 2 and or
3223: tcell 4 = 4 and or
3224: tcell 8 = 6 and or
3225: tchar 1 = 00 and or
3226: tchar 2 = 28 and or
3227: tchar 4 = 50 and or
3228: tchar 8 = 78 and or
3229: magic 7 + c!
3230:
3231: : save-cross ( "image-name" "binary-name" -- )
3232: bl parse ." Saving to " 2dup type cr
3233: w/o bin create-file throw >r
1.113 jwilke 3234: s" header" X $has? IF
1.80 anton 3235: s" #! " r@ write-file throw
3236: bl parse r@ write-file throw
3237: s" --image-file" r@ write-file throw
1.77 jwilke 3238: #lf r@ emit-file throw
3239: r@ dup file-position throw drop 8 mod 8 swap ( file-id limit index )
3240: ?do
3241: bl over emit-file throw
3242: loop
3243: drop
3244: magic 8 r@ write-file throw \ write magic
3245: ELSE
3246: bl parse 2drop
3247: THEN
3248: image @ there
3249: r@ write-file throw \ write image
1.113 jwilke 3250: s" relocate" X $has? IF
1.77 jwilke 3251: bit$ @ there 1- tcell>bit rshift 1+
3252: r@ write-file throw \ write tags
3253: THEN
3254: r> close-file throw ;
3255:
3256: : save-region ( addr len -- )
3257: bl parse w/o bin create-file throw >r
3258: swap >image swap r@ write-file throw
3259: r> close-file throw ;
3260:
1.110 jwilke 3261: \ save-asm-region 29aug01jaw
1.103 jwilke 3262:
3263: Variable name-ptr
3264: Create name-buf 200 chars allot
3265: : init-name-buf name-buf name-ptr ! ;
3266: : nb, name-ptr @ c! 1 chars name-ptr +! ;
3267: : $nb, ( adr len -- ) bounds ?DO I c@ nb, LOOP ;
3268: : @nb name-ptr @ name-buf tuck - ;
3269:
3270: \ stores a usefull string representation of the character
3271: \ in the name buffer
3272: : name-char, ( c -- )
3273: dup 'a 'z 1+ within IF nb, EXIT THEN
3274: dup 'A 'Z 1+ within IF $20 + nb, EXIT THEN
3275: dup '0 '9 1+ within IF nb, EXIT THEN
3276: CASE '+ OF s" _PLUS" $nb, ENDOF
3277: '- OF s" _MINUS" $nb, ENDOF
3278: '* OF s" _STAR" $nb, ENDOF
3279: '/ OF s" _SLASH" $nb, ENDOF
3280: '' OF s" _TICK" $nb, ENDOF
3281: '( OF s" _OPAREN" $nb, ENDOF
3282: ') OF s" _CPAREN" $nb, ENDOF
3283: '[ OF s" _OBRACKET" $nb, ENDOF
3284: '] OF s" _CBRACKET" $nb, ENDOF
3285: '! OF s" _STORE" $nb, ENDOF
3286: '@ OF s" _FETCH" $nb, ENDOF
3287: '> OF s" _GREATER" $nb, ENDOF
3288: '< OF s" _LESS" $nb, ENDOF
3289: '= OF s" _EQUAL" $nb, ENDOF
3290: '# OF s" _HASH" $nb, ENDOF
3291: '? OF s" _QUEST" $nb, ENDOF
3292: ': OF s" _COL" $nb, ENDOF
3293: '; OF s" _SEMICOL" $nb, ENDOF
3294: ', OF s" _COMMA" $nb, ENDOF
3295: '. OF s" _DOT" $nb, ENDOF
3296: '" OF s" _DQUOT" $nb, ENDOF
3297: dup
3298: base @ >r hex s>d <# #s 'X hold '_ hold #> $nb, r> base !
3299: ENDCASE ;
3300:
3301: : label-from-ghostname ( ghost -- addr len )
3302: dup >ghostname init-name-buf 'L nb, bounds
3303: ?DO I c@ name-char, LOOP
3304: \ we add the address to a name to make in unique
3305: \ because one name may appear more then once
3306: \ there are names (e.g. boot) that may be reference from other
3307: \ assembler source files, so we declare them as unique
3308: \ and don't add the address suffix
3309: dup >ghost-flags @ <unique> and 0=
3310: IF s" __" $nb, >link @ base @ >r hex 0 <# #s 'L hold #> r> base ! $nb,
3311: ELSE drop
3312: THEN
3313: @nb ;
3314:
1.111 jwilke 3315: \ FIXME why disabled?!
1.103 jwilke 3316: : label-from-ghostnameXX ( ghost -- addr len )
3317: \ same as (label-from-ghostname) but caches generated names
3318: dup >asm-name @ ?dup IF nip count EXIT THEN
3319: \ dup >r (label-from-ghostname) 2dup
3320: align here >r string, align
3321: r> r> >asm-name ! ;
3322:
3323: : primghostdiscover ( xt -- ghost true | xt false )
3324: dup 0= IF false EXIT THEN
3325: >r last-prim-ghost
3326: BEGIN @ dup
3327: WHILE dup >asm-dummyaddr @ r@ =
3328: IF rdrop true EXIT THEN
3329: REPEAT
3330: drop r> false ;
3331:
3332: : gdiscover2 ( xt -- ghost true | xt false )
3333: dup taddr>region 0= IF false EXIT THEN
3334: dup (>regiontype) @ dup 0= IF drop false EXIT THEN
3335: addr-xt-ghost @ dup 0= IF drop false EXIT THEN
3336: nip true ;
3337: \ dup >ghost-name @ IF nip true ELSE drop false THEN ;
3338:
3339: \ generates a label name for the target address
3340: : generate-label-name ( taddr -- addr len )
3341: gdiscover2
3342: IF dup >magic @ <do:> =
3343: IF >asm-name @ count EXIT THEN
3344: label-from-ghostname
3345: ELSE
3346: primghostdiscover
3347: IF >asm-name @ count
3348: ELSE base @ >r hex 0 <# #s 'L hold #> r> base !
3349: THEN
3350: THEN ;
3351:
3352: Variable outfile-fd
3353:
3354: : $out ( adr len -- ) outfile-fd @ write-file throw ;
3355: : nlout newline $out ;
3356: : .ux ( n -- )
3357: base @ hex swap 0 <# #S #> $out base ! ;
3358:
3359: : save-asm-region-part-aligned ( taddr len -- 'taddr 'len )
3360: dup cell/ 0
3361: ?DO nlout s" .word " $out over @relbit
3362: IF over X @ generate-label-name $out
3363: ELSE over X @ s" 0x0" $out .ux
3364: THEN
3365: tcell /string
3366: LOOP ;
3367:
3368: : print-bytes ( taddr len n -- taddr' len' )
3369: over min dup 0>
3370: IF nlout s" .byte " $out 0
3371: ?DO I 0> IF s" , " $out THEN
3372: over X c@ s" 0x0" $out .ux 1 /string
3373: LOOP
3374: THEN ;
3375:
3376: : save-asm-region-part ( addr len -- )
3377: over dup X aligned swap - ?dup
3378: IF print-bytes THEN
3379: save-asm-region-part-aligned
3380: dup dup X aligned swap - ?dup
3381: IF 2 pick @relbit ABORT" relocated field splitted"
3382: print-bytes
3383: THEN
3384: 2drop ;
3385:
3386: : print-label ( taddr -- )
3387: nlout generate-label-name $out s" :" $out ;
3388:
3389: : snl-calc ( taddr taddr2 -- )
3390: tuck over - ;
3391:
3392: : skip-nolables ( taddr -- taddr2 taddr len )
3393: \G skips memory region where no lables are defined
3394: \G starting from taddr+1
3395: \G Labels will be introduced for each reference mark
3396: \G in addr-refs.
3397: \G This word deals with lables at byte addresses as well.
3398: \G The main idea is to have an intro part which
3399: \G skips until the next cell boundary, the middle part
3400: \G which skips whole cells very efficiently and the third
3401: \G part which skips the bytes to the label in a cell
3402: dup 1+ dup (>regiontype)
3403: ( S taddr taddr-realstart type-addr )
3404: dup @ dup IF addr-refs @ THEN
3405: swap >r
3406: over align+ tuck tcell swap - rshift swap 0
1.126 jwilke 3407: ?DO dup 1 and
1.103 jwilke 3408: IF drop rdrop snl-calc UNLOOP EXIT THEN
3409: 2/ swap 1+ swap
3410: LOOP
3411: drop r> cell+
3412: ( S .. taddr2 type-addr ) dup
3413: BEGIN dup @ dup IF addr-refs @ THEN 0= WHILE cell+ REPEAT
3414: dup >r swap - 1 cells / tcell * + r>
3415: ( S .. taddr2+skiplencells type-addr )
3416: @ addr-refs @ 1 tcell lshift or
3417: BEGIN dup 1 and 0= WHILE swap 1+ swap 2/ REPEAT drop
3418: ( S .. taddr2+skiplencells+skiplenbytes )
3419: snl-calc ;
3420:
3421: : insert-label ( taddr -- )
3422: dup 0= IF drop EXIT THEN
3423: \ ignore everything which points outside our memory regions
3424: \ maybe a primitive pointer or whatever
3425: dup taddr>region 0= IF drop EXIT THEN
3426: dup >r (>regiontype) define-addr-struct addr-refs dup @
3427: r> tcell 1- and 1 swap lshift or swap ! ;
3428:
3429: \ this generates a sorted list of addresses which must be labels
3430: \ it scans therefore a whole region
3431: : generate-label-list-region ( taddr len -- )
3432: BEGIN over @relbit IF over X @ insert-label THEN
3433: tcell /string dup 0<
3434: UNTIL 2drop ;
3435:
3436: : generate-label-list ( -- )
3437: region-link
3438: BEGIN @ dup WHILE
3439: dup 0 >rlink - extent
3440: ?dup IF generate-label-list-region ELSE drop THEN
3441: REPEAT drop ;
3442:
3443: : create-outfile ( addr len -- )
3444: w/o bin create-file throw outfile-fd ! ;
3445:
3446: : close-outfile ( -- )
3447: outfile-fd @ close-file throw ;
3448:
3449: : (save-asm-region) ( region -- )
3450: \ ." label list..."
3451: generate-label-list
3452: \ ." ok!" cr
3453: extent ( S taddr len )
3454: over insert-label
3455: 2dup + dup insert-label >r ( R end-label )
3456: ( S taddr len ) drop
3457: BEGIN
3458: dup print-label
3459: dup r@ <> WHILE
3460: skip-nolables save-asm-region-part
3461: REPEAT drop rdrop ;
3462:
3463: : lineout ( addr len -- )
3464: outfile-fd @ write-line throw ;
3465:
3466: : save-asm-region ( region adr len -- )
3467: create-outfile (save-asm-region) close-outfile ;
3468:
1.54 pazsan 3469: \ \ minimal definitions
3470:
1.77 jwilke 3471: >MINIMAL also minimal
3472:
1.1 anton 3473: \ Usefull words 13feb93py
3474:
3475: : KB 400 * ;
3476:
1.54 pazsan 3477: \ \ [IF] [ELSE] [THEN] ... 14sep97jaw
3478:
3479: \ it is useful to define our own structures and not to rely
1.109 jwilke 3480: \ on the words in the host system
3481: \ The words in the host system might be defined with vocabularies
1.54 pazsan 3482: \ this doesn't work with our self-made compile-loop
3483:
3484: Create parsed 20 chars allot \ store word we parsed
3485:
3486: : upcase
3487: parsed count bounds
3488: ?DO I c@ toupper I c! LOOP ;
3489:
3490: : [ELSE]
3491: 1 BEGIN
3492: BEGIN bl word count dup WHILE
1.77 jwilke 3493: comment? 20 umin parsed place upcase parsed count
1.128 anton 3494: 2dup s" [IF]" str= >r
3495: 2dup s" [IFUNDEF]" str= >r
3496: 2dup s" [IFDEF]" str= r> or r> or
1.54 pazsan 3497: IF 2drop 1+
1.128 anton 3498: ELSE 2dup s" [ELSE]" str=
1.54 pazsan 3499: IF 2drop 1- dup
3500: IF 1+
3501: THEN
3502: ELSE
1.128 anton 3503: 2dup s" [ENDIF]" str= >r
3504: s" [THEN]" str= r> or
1.54 pazsan 3505: IF 1- THEN
3506: THEN
3507: THEN
3508: ?dup 0= ?EXIT
3509: REPEAT
3510: 2drop refill 0=
3511: UNTIL drop ; immediate
3512:
3513: : [THEN] ( -- ) ; immediate
3514:
3515: : [ENDIF] ( -- ) ; immediate
3516:
3517: : [IF] ( flag -- )
3518: 0= IF postpone [ELSE] THEN ; immediate
3519:
3520: Cond: [IF] postpone [IF] ;Cond
3521: Cond: [THEN] postpone [THEN] ;Cond
3522: Cond: [ELSE] postpone [ELSE] ;Cond
3523:
1.1 anton 3524: \ define new [IFDEF] and [IFUNDEF] 20may93jaw
3525:
1.77 jwilke 3526: : defined? tdefined? ;
1.44 pazsan 3527: : needed? needed? ;
3528: : doer? doer? ;
1.1 anton 3529:
1.52 jwilke 3530: \ we want to use IFDEF on compiler directives (e.g. E?) in the source, too
3531:
3532: : directive?
1.77 jwilke 3533: bl word count [ ' target >wordlist ] literal search-wordlist
1.52 jwilke 3534: dup IF nip THEN ;
3535:
3536: : [IFDEF] >in @ directive? swap >in !
1.77 jwilke 3537: 0= IF tdefined? ELSE name 2drop true THEN
1.52 jwilke 3538: postpone [IF] ;
3539:
1.77 jwilke 3540: : [IFUNDEF] tdefined? 0= postpone [IF] ;
1.1 anton 3541:
1.54 pazsan 3542: Cond: [IFDEF] postpone [IFDEF] ;Cond
3543:
3544: Cond: [IFUNDEF] postpone [IFUNDEF] ;Cond
3545:
1.1 anton 3546: \ C: \- \+ Conditional Compiling 09jun93jaw
3547:
1.77 jwilke 3548: : C: >in @ tdefined? 0=
3549: IF >in ! X :
1.1 anton 3550: ELSE drop
3551: BEGIN bl word dup c@
1.128 anton 3552: IF count comment? s" ;" str= ?EXIT
1.1 anton 3553: ELSE refill 0= ABORT" CROSS: Out of Input while C:"
3554: THEN
3555: AGAIN
3556: THEN ;
3557:
1.74 jwilke 3558: : d? d? ;
3559:
1.123 jwilke 3560: : \D ( -- "debugswitch" )
1.74 jwilke 3561: \G doesn't skip line when debug switch is on
1.123 jwilke 3562: D? 0= IF postpone \ THEN ;
1.52 jwilke 3563:
1.123 jwilke 3564: : \- ( -- "wordname" )
1.48 anton 3565: \G interprets the line if word is not defined
1.123 jwilke 3566: tdefined? IF postpone \ THEN ;
1.48 anton 3567:
1.123 jwilke 3568: : \+ ( -- "wordname" )
1.48 anton 3569: \G interprets the line if word is defined
1.123 jwilke 3570: tdefined? 0= IF postpone \ THEN ;
3571:
3572: : \? ( -- "envorinstring" )
3573: \G Skip line if environmental variable evaluates to false
3574: X has? 0= IF postpone \ THEN ;
1.1 anton 3575:
1.48 anton 3576: Cond: \- \- ;Cond
3577: Cond: \+ \+ ;Cond
1.52 jwilke 3578: Cond: \D \D ;Cond
1.123 jwilke 3579: Cond: \? \? ;Cond
1.48 anton 3580:
3581: : ?? bl word find IF execute ELSE drop 0 THEN ;
3582:
3583: : needed:
3584: \G defines ghost for words that we want to be compiled
1.103 jwilke 3585: BEGIN >in @ bl word c@ WHILE >in ! Ghost drop REPEAT drop ;
1.48 anton 3586:
1.1 anton 3587: \ words that should be in minimal
1.52 jwilke 3588:
3589: create s-buffer 50 chars allot
3590:
1.77 jwilke 3591: bigendian Constant bigendian
1.1 anton 3592:
1.52 jwilke 3593: : here there ;
1.67 jwilke 3594: : equ constant ;
3595: : mark there constant ;
1.54 pazsan 3596:
3597: \ compiler directives
1.52 jwilke 3598: : >ram >ram ;
3599: : >rom >rom ;
3600: : >auto >auto ;
3601: : >tempdp >tempdp ;
3602: : tempdp> tempdp> ;
3603: : const constflag on ;
1.103 jwilke 3604:
3605: : Redefinitions-start
3606: \G Starts a redefinition section. Warnings are disabled and
3607: \G existing ghosts are reused. This is used in the kernel
3608: \G where ( and \ and the like are redefined
3609: twarnings off warnings off reuse-ghosts on ;
3610:
3611: : Redefinitions-end
3612: \G Ends a redefinition section. Warnings are enabled again.
3613: twarnings on warnings on reuse-ghosts off ;
3614:
3615: : warnings name 3 =
3616: IF twarnings off warnings off ELSE twarnings on warnings on THEN drop ;
1.102 jwilke 3617:
1.60 anton 3618: : | ;
3619: \ : | NoHeaderFlag on ; \ This is broken (damages the last word)
1.52 jwilke 3620:
1.48 anton 3621: : save-cross save-cross ;
1.52 jwilke 3622: : save-region save-region ;
3623: : tdump swap >image swap dump ;
3624:
1.48 anton 3625: also forth
1.52 jwilke 3626: [IFDEF] Label : Label defempty? Label ; [THEN]
3627: [IFDEF] start-macros : start-macros defempty? start-macros ; [THEN]
1.77 jwilke 3628: \ [IFDEF] builttag : builttag builttag ; [THEN]
1.48 anton 3629: previous
3630:
1.52 jwilke 3631: : s" [char] " parse s-buffer place s-buffer count ; \ for environment?
1.43 pazsan 3632: : + + ;
1.52 jwilke 3633: : 1+ 1 + ;
3634: : 2+ 2 + ;
1.43 pazsan 3635: : 1- 1- ;
3636: : - - ;
1.52 jwilke 3637: : and and ;
3638: : or or ;
1.43 pazsan 3639: : 2* 2* ;
3640: : * * ;
3641: : / / ;
3642: : dup dup ;
3643: : over over ;
3644: : swap swap ;
3645: : rot rot ;
3646: : drop drop ;
3647: : = = ;
1.122 jwilke 3648: : <> <> ;
1.43 pazsan 3649: : 0= 0= ;
3650: : lshift lshift ;
3651: : 2/ 2/ ;
1.103 jwilke 3652: \ : . . ;
1.1 anton 3653:
1.79 jwilke 3654: : all-words ['] forced? IS skip? ;
1.43 pazsan 3655: : needed-words ['] needed? IS skip? ;
1.75 jwilke 3656: : undef-words ['] defined2? IS skip? ;
3657: : skipdef skipdef ;
1.1 anton 3658:
1.40 pazsan 3659: : \ postpone \ ; immediate
1.47 pazsan 3660: : \G T-\G ; immediate
1.40 pazsan 3661: : ( postpone ( ; immediate
1.1 anton 3662: : include bl word count included ;
1.103 jwilke 3663: : included swap >image swap included ;
1.52 jwilke 3664: : require require ;
1.103 jwilke 3665: : needs require ;
1.1 anton 3666: : .( [char] ) parse type ;
1.52 jwilke 3667: : ." [char] " parse type ;
1.1 anton 3668: : cr cr ;
3669:
1.77 jwilke 3670: : times 0 ?DO dup X c, LOOP drop ; \ used for space table creation
3671:
3672: \ only forth also cross also minimal definitions order
1.1 anton 3673:
3674: \ cross-compiler words
3675:
1.103 jwilke 3676: : decimal decimal [g'] decimal >exec2 @ ?dup IF EXECUTE THEN ;
3677: : hex hex [g'] hex >exec2 @ ?dup IF EXECUTE THEN ;
1.1 anton 3678:
1.77 jwilke 3679: \ : tudp X tudp ;
3680: \ : tup X tup ;
3681:
3682: : doc-off false to-doc ! ;
3683: : doc-on true to-doc ! ;
1.39 pazsan 3684:
1.103 jwilke 3685: : declareunique ( "name" -- )
1.127 anton 3686: \ Sets the unique flag for a ghost. The assembler output
3687: \ generates labels with the ghostname concatenated with the address
3688: \ while cross-compiling. The address is concatenated
3689: \ because we have double occurences of the same name.
3690: \ If we want to reference the labels from the assembler or C
3691: \ code we declare them unique, so the address is skipped.
1.103 jwilke 3692: Ghost >ghost-flags dup @ <unique> or swap ! ;
3693:
3694: \ [IFDEF] dbg : dbg dbg ; [THEN]
1.39 pazsan 3695:
1.1 anton 3696: \ for debugging...
1.103 jwilke 3697: \ : dbg dbg ;
3698: : horder order ;
3699: : hwords words ;
3700: \ : words also ghosts
3701: \ words previous ;
1.105 jwilke 3702: : .s .s ;
1.122 jwilke 3703: : depth depth ;
1.1 anton 3704: : bye bye ;
1.99 pazsan 3705:
1.103 jwilke 3706: \ dummy
3707: : group 0 word drop ;
3708:
1.1 anton 3709: \ turnkey direction
3710: : H forth ; immediate
3711: : T minimal ; immediate
3712: : G ghosts ; immediate
3713:
3714:
3715: \ these ones are pefered:
3716:
1.74 jwilke 3717: : unlock previous forth also cross ;
1.52 jwilke 3718:
1.77 jwilke 3719: \ also minimal
1.103 jwilke 3720: >cross
3721:
3722: : turnkey
3723: ghosts-wordlist 1 set-order
3724: also target definitions
3725: also Minimal also ;
3726:
3727: >minimal
3728:
3729: : [[+++
3730: turnkey unlock ;
1.1 anton 3731:
3732: unlock definitions also minimal
1.77 jwilke 3733:
1.103 jwilke 3734: : lock turnkey ;
3735:
3736: Defer +++]]-hook
3737: : +++]] +++]]-hook lock ;
3738:
3739: LOCK
1.77 jwilke 3740: \ load cross compiler extension defined in mach file
3741:
3742: UNLOCK >CROSS
3743:
3744: [IFDEF] extend-cross extend-cross [THEN]
3745:
3746: LOCK
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