Annotation of gforth/cross.fs, revision 1.111
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
30: - MAXU etc. can be done with dlit,
1.67 jwilke 31:
32: [THEN]
1.48 anton 33:
1.77 jwilke 34: hex
35:
36: \ debugging for compiling
37:
38: \ print stack at each colon definition
39: \ : : save-input cr bl word count type restore-input throw .s : ;
40:
41: \ print stack at each created word
42: \ : create save-input cr bl word count type restore-input throw .s create ;
43:
44:
45: \ \ ------------- Setup Vocabularies
46:
47: \ Remark: Vocabulary is not ANS, but it should work...
48:
49: Vocabulary Cross
50: Vocabulary Target
51: Vocabulary Ghosts
52: Vocabulary Minimal
53: only Forth also Target also also
54: definitions Forth
55:
1.78 jwilke 56: : T previous Ghosts also Target ; immediate
1.77 jwilke 57: : G Ghosts ; immediate
58: : H previous Forth also Cross ; immediate
59:
60: forth definitions
61:
1.78 jwilke 62: : T previous Ghosts also Target ; immediate
1.77 jwilke 63: : G Ghosts ; immediate
64:
1.105 jwilke 65:
1.77 jwilke 66: : >cross also Cross definitions previous ;
67: : >target also Target definitions previous ;
68: : >minimal also Minimal definitions previous ;
69:
70: H
71:
72: >CROSS
73:
74: \ find out whether we are compiling with gforth
75:
76: : defined? bl word find nip ;
77: defined? emit-file defined? toupper and \ drop 0
78: [IF]
79: \ use this in a gforth system
80: : \GFORTH ; immediate
81: : \ANSI postpone \ ; immediate
82: [ELSE]
83: : \GFORTH postpone \ ; immediate
84: : \ANSI ; immediate
85: [THEN]
86:
87: \ANSI : [IFUNDEF] defined? 0= postpone [IF] ; immediate
88: \ANSI : [IFDEF] defined? postpone [IF] ; immediate
89: 0 \ANSI drop 1
90: [IF]
91: : \G postpone \ ; immediate
92: : rdrop postpone r> postpone drop ; immediate
93: : name bl word count ;
94: : bounds over + swap ;
95: : scan >r BEGIN dup WHILE over c@ r@ <> WHILE 1 /string REPEAT THEN rdrop ;
96: : linked here over @ , swap ! ;
97: : alias create , DOES> @ EXECUTE ;
98: : defer ['] noop alias ;
99: : is state @
100: IF ' >body postpone literal postpone !
101: ELSE ' >body ! THEN ; immediate
102: : 0>= 0< 0= ;
103: : d<> rot <> -rot <> or ;
104: : toupper dup [char] a [char] z 1+ within IF [char] A [char] a - + THEN ;
105: Variable ebuf
106: : emit-file ( c fd -- ior ) swap ebuf c! ebuf 1 chars rot write-file ;
107: 0a Constant #lf
108: 0d Constant #cr
109:
110: [IFUNDEF] Warnings Variable Warnings [THEN]
111:
112: \ \ Number parsing 23feb93py
113:
114: \ number? number 23feb93py
115:
116: Variable dpl
117:
118: hex
119: Create bases 10 , 2 , A , 100 ,
120: \ 16 2 10 character
121:
122: \ !! protect BASE saving wrapper against exceptions
123: : getbase ( addr u -- addr' u' )
124: over c@ [char] $ - dup 4 u<
125: IF
126: cells bases + @ base ! 1 /string
127: ELSE
128: drop
129: THEN ;
130:
131: : sign? ( addr u -- addr u flag )
132: over c@ [char] - = dup >r
133: IF
134: 1 /string
135: THEN
136: r> ;
137:
138: : s>unumber? ( addr u -- ud flag )
1.78 jwilke 139: over [char] ' =
140: IF \ a ' alone is rather unusual :-)
141: drop char+ c@ 0 true EXIT
142: THEN
1.77 jwilke 143: base @ >r dpl on getbase
144: 0. 2swap
145: BEGIN ( d addr len )
146: dup >r >number dup
147: WHILE \ there are characters left
148: dup r> -
149: WHILE \ the last >number parsed something
150: dup 1- dpl ! over c@ [char] . =
151: WHILE \ the current char is '.'
152: 1 /string
153: REPEAT THEN \ there are unparseable characters left
154: 2drop false
155: ELSE
156: rdrop 2drop true
157: THEN
158: r> base ! ;
159:
160: \ ouch, this is complicated; there must be a simpler way - anton
161: : s>number? ( addr len -- d f )
162: \ converts string addr len into d, flag indicates success
163: sign? >r
164: s>unumber?
165: 0= IF
166: rdrop false
167: ELSE \ no characters left, all ok
168: r>
169: IF
170: dnegate
171: THEN
172: true
173: THEN ;
174:
175: : s>number ( addr len -- d )
176: \ don't use this, there is no way to tell success
177: s>number? drop ;
178:
179: : snumber? ( c-addr u -- 0 / n -1 / d 0> )
180: s>number? 0=
181: IF
182: 2drop false EXIT
183: THEN
184: dpl @ dup 0< IF
185: nip
186: ELSE
187: 1+
188: THEN ;
189:
190: : number? ( string -- string 0 / n -1 / d 0> )
191: dup >r count snumber? dup if
192: rdrop
193: else
194: r> swap
195: then ;
196:
197: : number ( string -- d )
198: number? ?dup 0= abort" ?" 0<
199: IF
200: s>d
201: THEN ;
202:
203: [THEN]
1.48 anton 204:
1.52 jwilke 205: hex \ the defualt base for the cross-compiler is hex !!
1.78 jwilke 206: \ Warnings off
1.52 jwilke 207:
208: \ words that are generaly useful
209:
1.59 pazsan 210: : KB 400 * ;
1.52 jwilke 211: : >wordlist ( vocabulary-xt -- wordlist-struct )
212: also execute get-order swap >r 1- set-order r> ;
213:
214: : umax 2dup u< IF swap THEN drop ;
215: : umin 2dup u> IF swap THEN drop ;
1.1 anton 216:
1.23 pazsan 217: : string, ( c-addr u -- )
218: \ puts down string as cstring
219: dup c, here swap chars dup allot move ;
1.5 pazsan 220:
1.77 jwilke 221: : ," [char] " parse string, ;
222:
1.52 jwilke 223: : SetValue ( n -- <name> )
1.54 pazsan 224: \G Same behaviour as "Value" if the <name> is not defined
225: \G Same behaviour as "to" if <name> is defined
1.52 jwilke 226: \G SetValue searches in the current vocabulary
1.68 jwilke 227: save-input bl word >r restore-input throw r> count
228: get-current search-wordlist
229: IF drop >r
230: \ we have to set current to be topmost context wordlist
231: get-order get-order get-current swap 1+ set-order
232: r> ['] to execute
1.74 jwilke 233: set-order
1.68 jwilke 234: ELSE Value THEN ;
1.52 jwilke 235:
236: : DefaultValue ( n -- <name> )
1.54 pazsan 237: \G Same behaviour as "Value" if the <name> is not defined
238: \G DefaultValue searches in the current vocabulary
1.52 jwilke 239: save-input bl word >r restore-input throw r> count
240: get-current search-wordlist
1.56 pazsan 241: IF bl word drop 2drop ELSE Value THEN ;
1.1 anton 242:
243: hex
244:
1.52 jwilke 245: \ 1 Constant Cross-Flag \ to check whether assembler compiler plug-ins are
246: \ for cross-compiling
247: \ No! we use "[IFUNDEF]" there to find out whether we are target compiling!!!
248:
249: : comment? ( c-addr u -- c-addr u )
250: 2dup s" (" compare 0=
251: IF postpone (
252: ELSE 2dup s" \" compare 0= IF postpone \ THEN
253: THEN ;
254:
1.105 jwilke 255: : X bl word count [ ' target >wordlist ] Literal search-wordlist
256: IF state @ IF compile,
257: ELSE execute THEN
258: ELSE -1 ABORT" Cross: access method not supported!"
259: THEN ; immediate
260:
1.52 jwilke 261: \ Begin CROSS COMPILER:
262:
1.74 jwilke 263: \ debugging
1.52 jwilke 264:
1.74 jwilke 265: 0 [IF]
266:
267: This implements debugflags for the cross compiler and the compiled
268: images. It works identical to the has-flags in the environment.
269: The debugflags are defined in a vocabluary. If the word exists and
270: its value is true, the flag is switched on.
271:
272: [THEN]
273:
1.77 jwilke 274: >CROSS
275:
1.74 jwilke 276: Vocabulary debugflags \ debug flags for cross
277: also debugflags get-order over
278: Constant debugflags-wl
279: set-order previous
280:
281: : DebugFlag
282: get-current >r debugflags-wl set-current
283: SetValue
284: r> set-current ;
285:
286: : Debug? ( adr u -- flag )
287: \G return true if debug flag is defined or switched on
288: debugflags-wl search-wordlist
289: IF EXECUTE
290: ELSE false THEN ;
291:
292: : D? ( <name> -- flag )
293: \G return true if debug flag is defined or switched on
294: \G while compiling we do not return the current value but
295: bl word count debug? ;
296:
297: : [d?]
298: \G compile the value-xt so the debug flag can be switched
299: \G the flag must exist!
300: bl word count debugflags-wl search-wordlist
301: IF compile,
302: ELSE -1 ABORT" unknown debug flag"
303: \ POSTPONE false
304: THEN ; immediate
1.54 pazsan 305:
1.77 jwilke 306: \ \ -------------------- source file
307:
308: decimal
309:
310: Variable cross-file-list
311: 0 cross-file-list !
312: Variable target-file-list
313: 0 target-file-list !
314: Variable host-file-list
315: 0 host-file-list !
316:
317: cross-file-list Value file-list
318: 0 Value source-desc
319:
320: \ file loading
321:
322: : >fl-id 1 cells + ;
323: : >fl-name 2 cells + ;
324:
325: Variable filelist 0 filelist !
326: Create NoFile ," #load-file#"
327:
328: : loadfile ( -- adr )
329: source-desc ?dup IF >fl-name ELSE NoFile THEN ;
330:
331: : sourcefilename ( -- adr len )
332: loadfile count ;
333:
334: \ANSI : sourceline# 0 ;
335:
336: \ \ -------------------- path handling from kernel/paths.fs
337:
338: \ paths.fs path file handling 03may97jaw
339:
340: \ -Changing the search-path:
341: \ fpath+ <path> adds a directory to the searchpath
342: \ fpath= <path>|<path> makes complete now searchpath
343: \ seperator is |
344: \ .fpath displays the search path
345: \ remark I:
346: \ a ./ in the beginning of filename is expanded to the directory the
347: \ current file comes from. ./ can also be included in the search-path!
348: \ ~+/ loads from the current working directory
349:
350: \ remark II:
351: \ if there is no sufficient space for the search path increase it!
352:
353:
354: \ -Creating custom paths:
355:
356: \ It is possible to use the search mechanism on yourself.
357:
358: \ Make a buffer for the path:
359: \ create mypath 100 chars , \ maximum length (is checked)
360: \ 0 , \ real len
361: \ 100 chars allot \ space for path
362: \ use the same functions as above with:
363: \ mypath path+
364: \ mypath path=
365: \ mypath .path
366:
367: \ do a open with the search path:
368: \ open-path-file ( adr len path -- fd adr len ior )
369: \ the file is opened read-only; if the file is not found an error is generated
370:
371: \ questions to: wilke@jwdt.com
372:
373: [IFUNDEF] +place
374: : +place ( adr len adr )
375: 2dup >r >r
376: dup c@ char+ + swap move
377: r> r> dup c@ rot + swap c! ;
378: [THEN]
379:
380: [IFUNDEF] place
381: : place ( c-addr1 u c-addr2 )
382: 2dup c! char+ swap move ;
383: [THEN]
384:
385: \ if we have path handling, use this and the setup of it
386: [IFUNDEF] open-fpath-file
387:
388: create sourcepath 1024 chars , 0 , 1024 chars allot \ !! make this dynamic
389: sourcepath value fpath
390:
391: : also-path ( adr len path^ -- )
392: >r
393: \ len check
394: r@ cell+ @ over + r@ @ u> ABORT" path buffer too small!"
395: \ copy into
396: tuck r@ cell+ dup @ cell+ + swap cmove
397: \ make delimiter
398: 0 r@ cell+ dup @ cell+ + 2 pick + c! 1 + r> cell+ +!
399: ;
400:
401: : only-path ( adr len path^ -- )
402: dup 0 swap cell+ ! also-path ;
403:
404: : path+ ( path-addr "dir" -- ) \ gforth
405: \G Add the directory @var{dir} to the search path @var{path-addr}.
406: name rot also-path ;
407:
408: : fpath+ ( "dir" ) \ gforth
409: \G Add directory @var{dir} to the Forth search path.
410: fpath path+ ;
411:
412: : path= ( path-addr "dir1|dir2|dir3" ) \ gforth
413: \G Make a complete new search path; the path separator is |.
414: name 2dup bounds ?DO i c@ [char] | = IF 0 i c! THEN LOOP
415: rot only-path ;
416:
417: : fpath= ( "dir1|dir2|dir3" ) \ gforth
418: \G Make a complete new Forth search path; the path separator is |.
419: fpath path= ;
420:
421: : path>counted cell+ dup cell+ swap @ ;
422:
423: : next-path ( adr len -- adr2 len2 )
424: 2dup 0 scan
425: dup 0= IF 2drop 0 -rot 0 -rot EXIT THEN
426: >r 1+ -rot r@ 1- -rot
427: r> - ;
428:
429: : previous-path ( path^ -- )
430: dup path>counted
431: BEGIN tuck dup WHILE repeat ;
432:
433: : .path ( path-addr -- ) \ gforth
434: \G Display the contents of the search path @var{path-addr}.
435: path>counted
436: BEGIN next-path dup WHILE type space REPEAT 2drop 2drop ;
437:
438: : .fpath ( -- ) \ gforth
439: \G Display the contents of the Forth search path.
440: fpath .path ;
441:
442: : absolut-path? ( addr u -- flag ) \ gforth
443: \G A path is absolute if it starts with a / or a ~ (~ expansion),
444: \G or if it is in the form ./*, extended regexp: ^[/~]|./, or if
445: \G it has a colon as second character ("C:..."). Paths simply
446: \G containing a / are not absolute!
447: 2dup 2 u> swap 1+ c@ [char] : = and >r \ dos absoulte: c:/....
448: over c@ [char] / = >r
449: over c@ [char] ~ = >r
450: \ 2dup 3 min S" ../" compare 0= r> or >r \ not catered for in expandtopic
451: 2 min S" ./" compare 0=
452: r> r> r> or or or ;
453:
454: Create ofile 0 c, 255 chars allot
455: Create tfile 0 c, 255 chars allot
456:
457: : pathsep? dup [char] / = swap [char] \ = or ;
458:
459: : need/ ofile dup c@ + c@ pathsep? 0= IF s" /" ofile +place THEN ;
460:
461: : extractpath ( adr len -- adr len2 )
462: BEGIN dup WHILE 1-
463: 2dup + c@ pathsep? IF EXIT THEN
464: REPEAT ;
465:
466: : remove~+ ( -- )
467: ofile count 3 min s" ~+/" compare 0=
468: IF
469: ofile count 3 /string ofile place
470: THEN ;
471:
472: : expandtopic ( -- ) \ stack effect correct? - anton
473: \ expands "./" into an absolute name
474: ofile count 2 min s" ./" compare 0=
475: IF
476: ofile count 1 /string tfile place
477: 0 ofile c! sourcefilename extractpath ofile place
478: ofile c@ IF need/ THEN
479: tfile count over c@ pathsep? IF 1 /string THEN
480: ofile +place
481: THEN ;
482:
483: : compact.. ( adr len -- adr2 len2 )
1.85 pazsan 484: \ deletes phrases like "xy/.." out of our directory name 2dec97jaw
485: over swap
486: BEGIN dup WHILE
487: dup >r '/ scan 2dup 4 min s" /../" compare 0=
488: IF
489: dup r> - >r 4 /string over r> + 4 -
490: swap 2dup + >r move dup r> over -
491: ELSE
492: rdrop dup 1 min /string
493: THEN
494: REPEAT drop over - ;
1.77 jwilke 495:
496: : reworkdir ( -- )
497: remove~+
498: ofile count compact..
499: nip ofile c! ;
500:
501: : open-ofile ( -- fid ior )
502: \G opens the file whose name is in ofile
503: expandtopic reworkdir
504: ofile count r/o open-file ;
505:
506: : check-path ( adr1 len1 adr2 len2 -- fd 0 | 0 <>0 )
507: 0 ofile ! >r >r ofile place need/
508: r> r> ofile +place
509: open-ofile ;
510:
511: : open-path-file ( addr1 u1 path-addr -- wfileid addr2 u2 0 | ior ) \ gforth
512: \G Look in path @var{path-addr} for the file specified by @var{addr1 u1}.
513: \G If found, the resulting path and an open file descriptor
514: \G are returned. If the file is not found, @var{ior} is non-zero.
515: >r
516: 2dup absolut-path?
517: IF rdrop
518: ofile place open-ofile
519: dup 0= IF >r ofile count r> THEN EXIT
520: ELSE r> path>counted
521: BEGIN next-path dup
522: WHILE 5 pick 5 pick check-path
523: 0= IF >r 2drop 2drop r> ofile count 0 EXIT ELSE drop THEN
524: REPEAT
525: 2drop 2drop 2drop -38
526: THEN ;
527:
528: : open-fpath-file ( addr1 u1 -- wfileid addr2 u2 0 | ior ) \ gforth
529: \G Look in the Forth search path for the file specified by @var{addr1 u1}.
530: \G If found, the resulting path and an open file descriptor
531: \G are returned. If the file is not found, @var{ior} is non-zero.
532: fpath open-path-file ;
533:
534: fpath= ~+
535:
536: [THEN]
537:
538: \ \ -------------------- include require 13may99jaw
539:
540: >CROSS
541:
542: : add-included-file ( adr len -- adr )
543: dup >fl-name char+ allocate throw >r
544: file-list @ r@ ! r@ file-list !
545: r@ >fl-name place r> ;
546:
547: : included? ( c-addr u -- f )
548: file-list
549: BEGIN @ dup
550: WHILE >r 2dup r@ >fl-name count compare 0=
551: IF rdrop 2drop true EXIT THEN
552: r>
553: REPEAT
554: 2drop drop false ;
555:
556: false DebugFlag showincludedfiles
557:
558: : included1 ( fd adr u -- )
559: \ include file adr u / fd
560: \ we don't use fd with include-file, because the forth system
561: \ doesn't know the name of the file to get a nice error report
562: [d?] showincludedfiles
563: IF cr ." Including: " 2dup type ." ..." THEN
564: rot close-file throw
565: source-desc >r
566: add-included-file to source-desc
567: sourcefilename
568: ['] included catch
569: r> to source-desc
570: throw ;
571:
572: : included ( adr len -- )
573: cross-file-list to file-list
574: open-fpath-file throw
575: included1 ;
576:
577: : required ( adr len -- )
578: cross-file-list to file-list
579: open-fpath-file throw \ 2dup cr ." R:" type
580: 2dup included?
581: IF 2drop close-file throw
582: ELSE included1
583: THEN ;
584:
585: : include bl word count included ;
586:
587: : require bl word count required ;
588:
1.78 jwilke 589: 0 [IF]
590:
1.77 jwilke 591: also forth definitions previous
592:
593: : included ( adr len -- ) included ;
594:
595: : required ( adr len -- ) required ;
596:
597: : include include ;
598:
599: : require require ;
600:
1.78 jwilke 601: [THEN]
602:
1.77 jwilke 603: >CROSS
604: hex
605:
606: \ \ -------------------- Error Handling 05aug97jaw
607:
608: \ Flags
609:
610: also forth definitions \ these values may be predefined before
611: \ the cross-compiler is loaded
612:
613: false DefaultValue stack-warn \ check on empty stack at any definition
614: false DefaultValue create-forward-warn \ warn on forward declaration of created words
615:
616: previous >CROSS
617:
618: : .dec
619: base @ decimal swap . base ! ;
620:
621: : .sourcepos
622: cr sourcefilename type ." :"
623: sourceline# .dec ;
624:
625: : warnhead
626: \G display error-message head
627: \G perhaps with linenumber and filename
628: .sourcepos ." Warning: " ;
629:
630: : empty? depth IF .sourcepos ." Stack not empty!" THEN ;
631:
632: stack-warn [IF]
633: : defempty? empty? ;
634: [ELSE]
635: : defempty? ; immediate
636: [THEN]
637:
1.105 jwilke 638: \ \ -------------------- Compiler Plug Ins 01aug97jaw
639:
640: >CROSS
641:
642: \ Compiler States
643:
644: Variable comp-state
645: 0 Constant interpreting
646: 1 Constant compiling
647: 2 Constant resolving
648: 3 Constant assembling
649:
650: : compiling? comp-state @ compiling = ;
651:
652: : pi-undefined -1 ABORT" Plugin undefined" ;
653:
654: : Plugin ( -- : pluginname )
655: Create
656: \ for normal cross-compiling only one action
657: \ exists, this fields are identical. For the instant
658: \ simulation environment we need, two actions for each plugin
659: \ the target one and the one that generates the simulation code
660: ['] pi-undefined , \ action
661: ['] pi-undefined , \ target plugin action
662: 8765 , \ plugin magic
663: DOES> perform ;
664:
665: Plugin DummyPlugin
666:
667: : 'PI ( -- addr : pluginname )
668: ' >body dup 2 cells + @ 8765 <> ABORT" not a plugin" ;
669:
670: : plugin-of ( xt -- : pluginname )
671: dup 'PI 2! ;
672:
673: : action-of ( xt -- : plunginname )
674: 'PI cell+ ! ;
675:
676: : TPA ( -- : plugin )
677: \ target plugin action
678: \ executes current target action of plugin
679: 'PI cell+ POSTPONE literal POSTPONE perform ; immediate
680:
681: Variable ppi-temp 0 ppi-temp !
682:
683: : pa:
684: \g define plugin action
685: ppi-temp @ ABORT" pa: definition not closed"
686: 'PI ppi-temp ! :noname ;
687:
688: : ;pa
689: \g end a definition for plugin action
690: POSTPONE ; ppi-temp @ ! 0 ppi-temp ! ; immediate
691:
692:
1.107 jwilke 693: Plugin dlit, ( d -- ) \ compile numerical value the target
1.105 jwilke 694: Plugin lit, ( n -- )
695: Plugin alit, ( n -- )
696:
697: Plugin branch, ( target-addr -- ) \ compiles a branch
698: Plugin ?branch, ( target-addr -- ) \ compiles a ?branch
699: Plugin branchmark, ( -- branch-addr ) \ reserves room for a branch
700: Plugin ?branchmark, ( -- branch-addr ) \ reserves room for a ?branch
701: Plugin ?domark, ( -- branch-addr ) \ reserves room for a ?do branch
702: Plugin branchto, ( -- ) \ actual program position is target of a branch (do e.g. alignment)
703: ' NOOP plugin-of branchto,
704: Plugin branchtoresolve, ( branch-addr -- ) \ resolves a forward reference from branchmark
705: Plugin branchtomark, ( -- target-addr ) \ marks a branch destination
706:
707: Plugin colon, ( tcfa -- ) \ compiles call to tcfa at current position
708: Plugin prim, ( tcfa -- ) \ compiles primitive invocation
709: Plugin colonmark, ( -- addr ) \ marks a colon call
710: Plugin colon-resolve ( tcfa addr -- )
711:
712: Plugin addr-resolve ( target-addr addr -- )
713: Plugin doer-resolve ( ghost res-pnt target-addr addr -- ghost res-pnt )
714:
715: Plugin ncontrols? ( [ xn ... x1 ] n -- ) \ checks wheter n control structures are open
716: Plugin if, ( -- if-token )
717: Plugin else, ( if-token -- if-token )
718: Plugin then, ( if-token -- )
719: Plugin ahead,
720: Plugin begin,
721: Plugin while,
722: Plugin until,
723: Plugin again,
724: Plugin repeat,
725: Plugin cs-swap ( x1 x2 -- x2 x1 )
726:
727: Plugin case, ( -- n )
728: Plugin of, ( n -- x1 n )
729: Plugin endof, ( x1 n -- x2 n )
730: Plugin endcase, ( x1 .. xn n -- )
731:
732: Plugin do, ( -- do-token )
733: Plugin ?do, ( -- ?do-token )
734: Plugin for, ( -- for-token )
735: Plugin loop, ( do-token / ?do-token -- )
736: Plugin +loop, ( do-token / ?do-token -- )
737: Plugin next, ( for-token )
738: Plugin leave, ( -- )
739: Plugin ?leave, ( -- )
740:
741: [IFUNDEF] ca>native
742: Plugin ca>native
743: [THEN]
744:
745: Plugin doprim, \ compiles start of a primitive
746: Plugin docol, \ compiles start of a colon definition
747: Plugin doer,
748: Plugin fini, \ compiles end of definition ;s
749: Plugin doeshandler,
750: Plugin dodoes,
751:
752: Plugin colon-start
753: ' noop plugin-of colon-start
754: Plugin colon-end
755: ' noop plugin-of colon-end
756:
757: Plugin ]comp \ starts compilation
758: ' noop plugin-of ]comp
759: Plugin comp[ \ ends compilation
760: ' noop plugin-of comp[
761:
762: Plugin t>body \ we need the system >body
763: \ and the target >body
764:
765: >TARGET
766: : >body t>body ;
767:
768:
1.103 jwilke 769: \ Ghost Builder 06oct92py
770:
1.105 jwilke 771: >CROSS
1.103 jwilke 772: hex
1.105 jwilke 773: \ Values for ghost magic
1.103 jwilke 774: 4711 Constant <fwd> 4712 Constant <res>
775: 4713 Constant <imm> 4714 Constant <do:>
776: 4715 Constant <skip>
777:
1.105 jwilke 778: \ Bitmask for ghost flags
1.103 jwilke 779: 1 Constant <unique>
1.105 jwilke 780: 2 Constant <primitive>
781:
782: \ FXIME: move this to general stuff?
783: : set-flag ( addr flag -- )
784: over @ or swap ! ;
785:
786: : reset-flag ( addr flag -- )
787: invert over @ and swap ! ;
788:
789: : get-flag ( addr flag -- f )
790: swap @ and 0<> ;
791:
1.103 jwilke 792:
793: Struct
1.52 jwilke 794:
1.103 jwilke 795: \ link to next ghost (always the first element)
796: cell% field >next-ghost
1.52 jwilke 797:
1.103 jwilke 798: \ type of ghost
799: cell% field >magic
800:
801: \ pointer where ghost is in target, or if unresolved
802: \ points to the where we have to resolve (linked-list)
803: cell% field >link
1.52 jwilke 804:
1.106 jwilke 805: \ execution semantics (while target compiling) of ghost
1.103 jwilke 806: cell% field >exec
1.52 jwilke 807:
1.106 jwilke 808: \ compilation action of this ghost; this is what is
809: \ done to compile a call (or whatever) to this definition.
810: \ E.g. >comp contains the semantic of postpone s"
811: \ whereas >exec-compile contains the semantic of s"
1.105 jwilke 812: cell% field >comp
813:
1.106 jwilke 814: \ Compilation sematics (while parsing) of this ghost. E.g.
815: \ "\" will skip the rest of line.
816: \ These semantics are defined by Cond: and
817: \ if a word is made immediate in instant, then the >exec2 field
818: \ gets copied to here
1.103 jwilke 819: cell% field >exec-compile
1.52 jwilke 820:
1.106 jwilke 821: \ Additional execution semantics of this ghost. This is used
822: \ for code generated by instant and for the doer-xt of created
823: \ words
1.103 jwilke 824: cell% field >exec2
1.52 jwilke 825:
1.103 jwilke 826: cell% field >created
1.52 jwilke 827:
1.103 jwilke 828: \ the xt of the created ghost word itself
829: cell% field >ghost-xt
1.52 jwilke 830:
1.103 jwilke 831: \ pointer to the counted string of the assiciated
832: \ assembler label
833: cell% field >asm-name
1.52 jwilke 834:
1.103 jwilke 835: \ mapped primitives have a special address, so
836: \ we are able to detect them
837: cell% field >asm-dummyaddr
838:
839: \ for builder (create, variable...) words
840: \ the execution symantics of words built are placed here
841: \ this is a doer ghost or a dummy ghost
842: cell% field >do:ghost
1.93 pazsan 843:
1.103 jwilke 844: cell% field >ghost-flags
1.93 pazsan 845:
1.103 jwilke 846: cell% field >ghost-name
1.52 jwilke 847:
1.103 jwilke 848: End-Struct ghost-struct
1.52 jwilke 849:
1.103 jwilke 850: Variable ghost-list
851: 0 ghost-list !
1.52 jwilke 852:
853: Variable executed-ghost \ last executed ghost, needed in tcreate and gdoes>
1.103 jwilke 854: \ Variable last-ghost \ last ghost that is created
1.52 jwilke 855: Variable last-header-ghost \ last ghost definitions with header
856:
1.103 jwilke 857: \ space for ghosts resolve structure
858: \ we create ghosts in a sepearte space
859: \ and not to the current host dp, because this
860: \ gives trouble with instant while compiling and creating
861: \ a ghost for a forward reference
862: \ BTW: we cannot allocate another memory region
863: \ because allot will check the overflow!!
864: Variable cross-space-dp
865: Create cross-space 250000 allot here 100 allot align
866: Constant cross-space-end
867: cross-space cross-space-dp !
868: Variable cross-space-dp-orig
869:
870: : cross-space-used cross-space-dp @ cross-space - ;
871:
872: : >space ( -- )
873: dp @ cross-space-dp-orig !
874: cross-space-dp @ dp ! ;
875:
876: : space> ( -- )
877: dp @ dup cross-space-dp !
878: cross-space-end u> ABORT" CROSS: cross-space overflow"
879: cross-space-dp-orig @ dp ! ;
880:
1.106 jwilke 881: \ this is just for debugging, to see this in the backtrace
1.103 jwilke 882: : execute-exec execute ;
883: : execute-exec2 execute ;
884: : execute-exec-compile execute ;
885:
886: : NoExec
887: executed-ghost @ >exec2 @
888: ?dup
889: IF execute-exec2
890: ELSE true ABORT" CROSS: Don't execute ghost, or immediate target word"
891: THEN ;
892:
1.105 jwilke 893: Defer is-forward
894:
1.103 jwilke 895: : (ghostheader) ( -- )
1.105 jwilke 896: ghost-list linked <fwd> , 0 , ['] NoExec , ['] is-forward ,
897: 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , ;
1.103 jwilke 898:
899: : ghostheader ( -- ) (ghostheader) 0 , ;
900:
901: ' Ghosts >wordlist Constant ghosts-wordlist
902:
903: \ the current wordlist for ghost definitions in the host
904: ghosts-wordlist Value current-ghosts
905:
1.52 jwilke 906: : Make-Ghost ( "name" -- ghost )
1.103 jwilke 907: >space
908: \ save current and create in ghost vocabulary
909: get-current >r current-ghosts set-current
910: >in @ Create >in !
911: \ some forth systems like iForth need the immediate directly
912: \ after the word is created
913: \ restore current
914: r> set-current
915: here (ghostheader)
916: bl word count string, align
917: space>
918: \ set ghost-xt field by doing a search
919: dup >ghost-name count
920: current-ghosts search-wordlist
921: 0= ABORT" CROSS: Just created, must be there!"
922: over >ghost-xt !
923: DOES>
924: dup executed-ghost !
925: >exec @ execute-exec ;
1.52 jwilke 926:
927: \ ghost words 14oct92py
928: \ changed: 10may93py/jaw
929:
1.103 jwilke 930: Defer search-ghosts
931:
932: : (search-ghosts) ( adr len -- cfa true | 0 )
933: current-ghosts search-wordlist ;
934:
935: ' (search-ghosts) IS search-ghosts
936:
937: : gsearch ( addr len -- ghost true | 0 )
938: search-ghosts
939: dup IF swap >body swap THEN ;
940:
941: : gfind ( string -- ghost true / string false )
1.52 jwilke 942: \ searches for string in word-list ghosts
1.103 jwilke 943: \ dup count type space
944: dup >r count gsearch
945: dup IF rdrop ELSE r> swap THEN ;
1.52 jwilke 946:
947: : gdiscover ( xt -- ghost true | xt false )
1.103 jwilke 948: >r ghost-list
1.52 jwilke 949: BEGIN @ dup
1.103 jwilke 950: WHILE dup >magic @ <fwd> <>
951: IF dup >link @ r@ =
952: IF rdrop true EXIT THEN
953: THEN
1.52 jwilke 954: REPEAT
1.103 jwilke 955: drop r> false ;
1.52 jwilke 956:
1.105 jwilke 957: : xt>ghost ( xt -- ghost )
958: gdiscover 0= ABORT" CROSS: ghost not found for this xt" ;
959:
1.103 jwilke 960: : Ghost ( "name" -- ghost )
961: >in @ bl word gfind IF nip EXIT THEN
1.52 jwilke 962: drop >in ! Make-Ghost ;
963:
964: : >ghostname ( ghost -- adr len )
1.103 jwilke 965: >ghost-name count ;
966:
967: : forward? ( ghost -- flag )
968: >magic @ <fwd> = ;
969:
970: : undefined? ( ghost -- flag )
971: >magic @ dup <fwd> = swap <skip> = or ;
972:
973: : immediate? ( ghost -- flag )
974: >magic @ <imm> = ;
975:
976: Variable TWarnings
977: TWarnings on
978: Variable Exists-Warnings
979: Exists-Warnings on
980:
981: : exists-warning ( ghost -- ghost )
982: TWarnings @ Exists-Warnings @ and
983: IF dup >ghostname warnhead type ." exists " THEN ;
984:
985: \ : HeaderGhost Ghost ;
986:
987: Variable reuse-ghosts reuse-ghosts off
988:
989: : HeaderGhost ( "name" -- ghost )
990: >in @
991: bl word count
992: \ 2dup type space
993: current-ghosts search-wordlist
994: IF >body dup undefined? reuse-ghosts @ or
995: IF nip EXIT
996: ELSE exists-warning
997: THEN
998: drop >in !
999: ELSE >in !
1000: THEN
1001: \ we keep the execution semantics of the prviously
1002: \ defined words, this is a workaround
1003: \ for the redefined \ until vocs work
1004: Make-Ghost ;
1005:
1.78 jwilke 1006: : .ghost ( ghost -- ) >ghostname type ;
1007:
1.77 jwilke 1008: \ ' >ghostname ALIAS @name
1.52 jwilke 1009:
1.103 jwilke 1010: : [G'] ( -- ghost : name )
1011: \G ticks a ghost and returns its address
1012: \ bl word gfind 0= ABORT" CROSS: Ghost don't exists"
1013: ghost state @ IF postpone literal THEN ; immediate
1014:
1.105 jwilke 1015: : g>xt ( ghost -- xt )
1016: \G Returns the xt (cfa) of a ghost. Issues a warning if undefined.
1.103 jwilke 1017: dup undefined? ABORT" CROSS: forward " >link @ ;
1018:
1.105 jwilke 1019: : g>body ( ghost -- body )
1020: \G Returns the body-address (pfa) of a ghost.
1021: \G Issues a warning if undefined (a forward-reference).
1022: g>xt X >body ;
1023:
1.103 jwilke 1024: 1 Constant <label>
1.52 jwilke 1025:
1.103 jwilke 1026: Struct
1027: \ bitmask of address type (not used for now)
1028: cell% field addr-type
1029: \ if this address is an xt, this field points to the ghost
1030: cell% field addr-xt-ghost
1031: \ a bit mask that tells as what part of the cell
1032: \ is refenced from an address pointer, used for assembler generation
1033: cell% field addr-refs
1034: End-Struct addr-struct
1035:
1036: : %allocerase ( align size -- addr )
1037: dup >r %alloc dup r> erase ;
1038:
1039: \ returns the addr struct, define it if 0 reference
1040: : define-addr-struct ( addr -- struct-addr )
1041: dup @ ?dup IF nip EXIT THEN
1042: addr-struct %allocerase tuck swap ! ;
1.75 jwilke 1043:
1.52 jwilke 1044: \ Predefined ghosts 12dec92py
1045:
1.103 jwilke 1046: Ghost 0= drop
1047: Ghost branch Ghost ?branch 2drop
1048: Ghost (do) Ghost (?do) 2drop
1049: Ghost (for) drop
1050: Ghost (loop) Ghost (+loop) 2drop
1051: Ghost (next) drop
1052: Ghost unloop Ghost ;S 2drop
1053: Ghost lit Ghost (compile) Ghost ! 2drop drop
1054: Ghost (does>) Ghost noop 2drop
1055: Ghost (.") Ghost (S") Ghost (ABORT") 2drop drop
1056: Ghost ' drop
1057: Ghost :docol Ghost :doesjump Ghost :dodoes 2drop drop
1058: Ghost :dovar drop
1059: Ghost over Ghost = Ghost drop 2drop drop
1060: Ghost - drop
1061: Ghost 2drop drop
1062: Ghost 2dup drop
1063:
1064:
1.52 jwilke 1065:
1066: \ \ Parameter for target systems 06oct92py
1067:
1.103 jwilke 1068:
1069: >cross
1.52 jwilke 1070: \ we define it ans like...
1071: wordlist Constant target-environment
1072:
1.103 jwilke 1073: \ save information of current dictionary to restore with environ>
1074: Variable env-current
1.52 jwilke 1075:
1076: : >ENVIRON get-current env-current ! target-environment set-current ;
1077: : ENVIRON> env-current @ set-current ;
1.43 pazsan 1078:
1.48 anton 1079: >TARGET
1.43 pazsan 1080:
1.103 jwilke 1081: : environment? ( addr len -- [ x ] true | false )
1082: \G returns the content of environment variable and true or
1083: \G false if not present
1084: target-environment search-wordlist
1085: IF EXECUTE true ELSE false THEN ;
1086:
1087: : $has? ( addr len -- x | false )
1088: \G returns the content of environment variable
1089: \G or false if not present
1090: T environment? H dup IF drop THEN ;
1091:
1092: : e? ( "name" -- x )
1093: \G returns the content of environment variable.
1094: \G The variable is expected to exist. If not, issue an error.
1095: bl word count T environment? H
1096: 0= ABORT" environment variable not defined!" ;
1097:
1098: : has? ( "name" --- x | false )
1099: \G returns the content of environment variable
1100: \G or false if not present
1101: bl word count T $has? H ;
1.52 jwilke 1102:
1.48 anton 1103:
1.54 pazsan 1104: >ENVIRON get-order get-current swap 1+ set-order
1105: true SetValue compiler
1.83 pazsan 1106: true SetValue cross
1.54 pazsan 1107: true SetValue standard-threading
1108: >TARGET previous
1.52 jwilke 1109:
1.77 jwilke 1110: 0
1.103 jwilke 1111: [IFDEF] mach-file drop mach-file count 1 [THEN]
1112: [IFDEF] machine-file drop machine-file 1 [THEN]
1113: [IF] included hex
1.77 jwilke 1114: [ELSE] cr ." No machine description!" ABORT
1115: [THEN]
1.43 pazsan 1116:
1.53 jwilke 1117: >ENVIRON
1118:
1.54 pazsan 1119: T has? ec H
1120: [IF]
1121: false DefaultValue relocate
1122: false DefaultValue file
1123: false DefaultValue OS
1124: false DefaultValue prims
1125: false DefaultValue floating
1126: false DefaultValue glocals
1127: false DefaultValue dcomps
1128: false DefaultValue hash
1129: false DefaultValue xconds
1130: false DefaultValue header
1.105 jwilke 1131: false DefaultValue backtrace
1132: false DefaultValue new-input
1133: false DefaultValue peephole
1.54 pazsan 1134: [THEN]
1135:
1136: true DefaultValue interpreter
1137: true DefaultValue ITC
1138: false DefaultValue rom
1.73 jwilke 1139: true DefaultValue standardthreading
1.53 jwilke 1140:
1.52 jwilke 1141: >TARGET
1.53 jwilke 1142: s" relocate" T environment? H
1.103 jwilke 1143: \ JAW why set NIL to this?!
1144: [IF] drop \ SetValue NIL
1.53 jwilke 1145: [ELSE] >ENVIRON T NIL H SetValue relocate
1146: [THEN]
1.43 pazsan 1147:
1148: >CROSS
1149:
1.52 jwilke 1150: \ \ Create additional parameters 19jan95py
1.19 pazsan 1151:
1.71 jwilke 1152: \ currently cross only works for host machines with address-unit-bits
1153: \ eual to 8 because of s! and sc!
1154: \ but I start to query the environment just to modularize a little bit
1155:
1156: : check-address-unit-bits ( -- )
1157: \ s" ADDRESS-UNIT-BITS" environment?
1158: \ IF 8 <> ELSE true THEN
1159: \ ABORT" ADDRESS-UNIT-BITS unknown or not equal to 8!"
1160:
1161: \ shit, this doesn't work because environment? is only defined for
1162: \ gforth.fi and not kernl???.fi
1163: ;
1164:
1165: check-address-unit-bits
1166: 8 Constant bits/byte \ we define: byte is address-unit
1167:
1168: 1 bits/byte lshift Constant maxbyte
1.77 jwilke 1169: \ this sets byte size for the target machine, (probably right guess) jaw
1.67 jwilke 1170:
1.19 pazsan 1171: T
1.71 jwilke 1172: NIL Constant TNIL
1173: cell Constant tcell
1174: cell<< Constant tcell<<
1175: cell>bit Constant tcell>bit
1176: bits/char Constant tbits/char
1177: bits/char H bits/byte T /
1178: Constant tchar
1179: float Constant tfloat
1180: 1 bits/char lshift Constant tmaxchar
1181: [IFUNDEF] bits/byte
1182: 8 Constant tbits/byte
1183: [ELSE]
1184: bits/byte Constant tbits/byte
1185: [THEN]
1.19 pazsan 1186: H
1.81 pazsan 1187: tbits/char bits/byte / Constant tbyte
1.71 jwilke 1188:
1.19 pazsan 1189:
1.48 anton 1190: \ Variables 06oct92py
1191:
1192: Variable image
1193: Variable tlast TNIL tlast ! \ Last name field
1194: Variable tlastcfa \ Last code field
1195: Variable bit$
1.52 jwilke 1196:
1197: \ statistics 10jun97jaw
1198:
1199: Variable headers-named 0 headers-named !
1200: Variable user-vars 0 user-vars !
1201:
1.67 jwilke 1202: : target>bitmask-size ( u1 -- u2 )
1203: 1- tcell>bit rshift 1+ ;
1204:
1.105 jwilke 1205: : allocatetarget ( size -- adr )
1.67 jwilke 1206: dup allocate ABORT" CROSS: No memory for target"
1207: swap over swap erase ;
1.52 jwilke 1208:
1.54 pazsan 1209: \ \ memregion.fs
1.52 jwilke 1210:
1211:
1212: Variable last-defined-region \ pointer to last defined region
1213: Variable region-link \ linked list with all regions
1214: Variable mirrored-link \ linked list for mirrored regions
1215: 0 dup mirrored-link ! region-link !
1216:
1217:
1.103 jwilke 1218: : >rname 7 cells + ;
1219: : >rbm 4 cells + ;
1220: : >rmem 5 cells + ;
1221: : >rtype 6 cells + ;
1.67 jwilke 1222: : >rlink 3 cells + ;
1.52 jwilke 1223: : >rdp 2 cells + ;
1224: : >rlen cell+ ;
1225: : >rstart ;
1226:
1227:
1.103 jwilke 1228: : region ( addr len -- )
1229: \G create a new region
1.52 jwilke 1230: \ check whether predefined region exists
1231: save-input bl word find >r >r restore-input throw r> r> 0=
1232: IF \ make region
1233: drop
1234: save-input create restore-input throw
1235: here last-defined-region !
1236: over ( startaddr ) , ( length ) , ( dp ) ,
1.103 jwilke 1237: region-link linked 0 , 0 , 0 , bl word count string,
1.52 jwilke 1238: ELSE \ store new parameters in region
1239: bl word drop
1240: >body >r r@ last-defined-region !
1.67 jwilke 1241: r@ >rlen ! dup r@ >rstart ! r> >rdp !
1.52 jwilke 1242: THEN ;
1243:
1.103 jwilke 1244: : borders ( region -- startaddr endaddr )
1245: \G returns lower and upper region border
1.67 jwilke 1246: dup >rstart @ swap >rlen @ over + ;
1.52 jwilke 1247:
1.103 jwilke 1248: : extent ( region -- startaddr len )
1249: \G returns the really used area
1.67 jwilke 1250: dup >rstart @ swap >rdp @ over - ;
1.52 jwilke 1251:
1.103 jwilke 1252: : area ( region -- startaddr totallen )
1253: \G returns the total area
1.79 jwilke 1254: dup >rstart @ swap >rlen @ ;
1.52 jwilke 1255:
1.103 jwilke 1256: : mirrored
1257: \G mark a region as mirrored
1.52 jwilke 1258: mirrored-link
1.68 jwilke 1259: align linked last-defined-region @ , ;
1.52 jwilke 1260:
1.67 jwilke 1261: : .addr ( u -- )
1262: \G prints a 16 or 32 Bit nice hex value
1.52 jwilke 1263: base @ >r hex
1264: tcell 2 u>
1.77 jwilke 1265: IF s>d <# # # # # [char] . hold # # # # #> type
1.52 jwilke 1266: ELSE s>d <# # # # # # #> type
1.103 jwilke 1267: THEN r> base ! space ;
1.52 jwilke 1268:
1269: : .regions \G display region statistic
1270:
1271: \ we want to list the regions in the right order
1272: \ so first collect all regions on stack
1273: 0 region-link @
1274: BEGIN dup WHILE dup @ REPEAT drop
1275: BEGIN dup
1.67 jwilke 1276: WHILE cr
1277: 0 >rlink - >r
1278: r@ >rname count tuck type
1.52 jwilke 1279: 12 swap - 0 max spaces space
1.67 jwilke 1280: ." Start: " r@ >rstart @ dup .addr space
1281: ." End: " r@ >rlen @ + .addr space
1282: ." DP: " r> >rdp @ .addr
1.52 jwilke 1283: REPEAT drop
1.53 jwilke 1284: s" rom" T $has? H 0= ?EXIT
1.52 jwilke 1285: cr ." Mirrored:"
1286: mirrored-link @
1287: BEGIN dup
1.67 jwilke 1288: WHILE space dup cell+ @ >rname count type @
1.52 jwilke 1289: REPEAT drop cr
1290: ;
1291:
1292: \ -------- predefined regions
1293:
1294: 0 0 region address-space
1295: \ total memory addressed and used by the target system
1296:
1297: 0 0 region dictionary
1298: \ rom area for the compiler
1299:
1.53 jwilke 1300: T has? rom H
1.52 jwilke 1301: [IF]
1302: 0 0 region ram-dictionary mirrored
1303: \ ram area for the compiler
1304: [ELSE]
1305: ' dictionary ALIAS ram-dictionary
1306: [THEN]
1307:
1308: 0 0 region return-stack
1309:
1310: 0 0 region data-stack
1311:
1312: 0 0 region tib-region
1313:
1314: ' dictionary ALIAS rom-dictionary
1315:
1316:
1.105 jwilke 1317: : setup-target ( -- ) \G initialize target's memory space
1.53 jwilke 1318: s" rom" T $has? H
1.52 jwilke 1319: IF \ check for ram and rom...
1.72 jwilke 1320: \ address-space area nip 0<>
1.67 jwilke 1321: ram-dictionary area nip 0<>
1322: rom-dictionary area nip 0<>
1.72 jwilke 1323: and 0=
1.52 jwilke 1324: ABORT" CROSS: define address-space, rom- , ram-dictionary, with rom-support!"
1325: THEN
1326: address-space area nip
1327: IF
1328: address-space area
1329: ELSE
1330: dictionary area
1331: THEN
1.67 jwilke 1332: nip 0=
1.52 jwilke 1333: ABORT" CROSS: define at least address-space or dictionary!!"
1.67 jwilke 1334:
1335: \ allocate target for each region
1336: region-link
1337: BEGIN @ dup
1338: WHILE dup
1339: 0 >rlink - >r
1340: r@ >rlen @
1341: IF \ allocate mem
1.103 jwilke 1342: r@ >rlen @ allocatetarget dup image !
1.67 jwilke 1343: r@ >rmem !
1344:
1.103 jwilke 1345: r@ >rlen @
1.67 jwilke 1346: target>bitmask-size allocatetarget
1.72 jwilke 1347: dup bit$ !
1.103 jwilke 1348: r@ >rbm !
1.67 jwilke 1349:
1.103 jwilke 1350: r@ >rlen @
1351: tcell / 1+ cells allocatetarget r@ >rtype !
1352:
1353: rdrop
1.67 jwilke 1354: ELSE r> drop THEN
1.72 jwilke 1355: REPEAT drop ;
1356:
1.105 jwilke 1357: \ MakeKernel 22feb99jaw
1.72 jwilke 1358:
1359: : makekernel ( targetsize -- targetsize )
1360: dup dictionary >rlen ! setup-target ;
1361:
1362: >MINIMAL
1363: : makekernel makekernel ;
1364: >CROSS
1.52 jwilke 1365:
1.54 pazsan 1366: \ \ switched tdp for rom support 03jun97jaw
1.52 jwilke 1367:
1368: \ second value is here to store some maximal value for statistics
1369: \ tempdp is also embedded here but has nothing to do with rom support
1370: \ (needs switched dp)
1371:
1372: variable tempdp 0 , \ temporary dp for resolving
1373: variable tempdp-save
1374:
1375: 0 [IF]
1376: variable romdp 0 , \ Dictionary-Pointer for ramarea
1377: variable ramdp 0 , \ Dictionary-Pointer for romarea
1378:
1379: \
1380: variable sramdp \ start of ram-area for forth
1381: variable sromdp \ start of rom-area for forth
1382:
1383: [THEN]
1384:
1385:
1386: 0 value tdp
1387: variable fixed \ flag: true: no automatic switching
1388: \ false: switching is done automatically
1389:
1390: \ Switch-Policy:
1391: \
1392: \ a header is always compiled into rom
1393: \ after a created word (create and variable) compilation goes to ram
1394: \
1395: \ Be careful: If you want to make the data behind create into rom
1396: \ you have to put >rom before create!
1397:
1398: variable constflag constflag off
1399:
1.67 jwilke 1400: : activate ( region -- )
1401: \G next code goes to this region
1402: >rdp to tdp ;
1403:
1.52 jwilke 1404: : (switchram)
1.53 jwilke 1405: fixed @ ?EXIT s" rom" T $has? H 0= ?EXIT
1.67 jwilke 1406: ram-dictionary activate ;
1.52 jwilke 1407:
1408: : switchram
1409: constflag @
1410: IF constflag off ELSE (switchram) THEN ;
1411:
1412: : switchrom
1.67 jwilke 1413: fixed @ ?EXIT rom-dictionary activate ;
1.52 jwilke 1414:
1415: : >tempdp ( addr -- )
1416: tdp tempdp-save ! tempdp to tdp tdp ! ;
1417: : tempdp> ( -- )
1418: tempdp-save @ to tdp ;
1419:
1420: : >ram fixed off (switchram) fixed on ;
1421: : >rom fixed off switchrom fixed on ;
1422: : >auto fixed off switchrom ;
1423:
1424:
1425:
1426: \ : romstart dup sromdp ! romdp ! ;
1427: \ : ramstart dup sramdp ! ramdp ! ;
1428:
1.67 jwilke 1429: \ default compilation goes to rom
1.52 jwilke 1430: \ when romable support is off, only the rom switch is used (!!)
1431: >auto
1432:
1.48 anton 1433: : there tdp @ ;
1434:
1.52 jwilke 1435: >TARGET
1.48 anton 1436:
1.52 jwilke 1437: \ \ Target Memory Handling
1.1 anton 1438:
1439: \ Byte ordering and cell size 06oct92py
1440:
1.19 pazsan 1441: : cell+ tcell + ;
1442: : cells tcell<< lshift ;
1.71 jwilke 1443: : chars tchar * ;
1444: : char+ tchar + ;
1.19 pazsan 1445: : floats tfloat * ;
1.6 anton 1446:
1.1 anton 1447: >CROSS
1.19 pazsan 1448: : cell/ tcell<< rshift ;
1.1 anton 1449: >TARGET
1450: 20 CONSTANT bl
1.52 jwilke 1451: \ TNIL Constant NIL
1.1 anton 1452:
1453: >CROSS
1454:
1.20 pazsan 1455: bigendian
1456: [IF]
1.106 jwilke 1457: : DS! ( d addr -- ) tcell bounds swap 1-
1.20 pazsan 1458: DO maxbyte ud/mod rot I c! -1 +LOOP 2drop ;
1.106 jwilke 1459: : DS@ ( addr -- d ) >r 0 0 r> tcell bounds
1460: DO maxbyte * swap maxbyte um* rot + swap I c@ + swap LOOP ;
1.57 pazsan 1461: : Sc! ( n addr -- ) >r s>d r> tchar bounds swap 1-
1462: DO maxbyte ud/mod rot I c! -1 +LOOP 2drop ;
1463: : Sc@ ( addr -- n ) >r 0 0 r> tchar bounds
1464: DO maxbyte * swap maxbyte um* rot + swap I c@ + swap LOOP d>s ;
1.19 pazsan 1465: [ELSE]
1.106 jwilke 1466: : DS! ( d addr -- ) tcell bounds
1.20 pazsan 1467: DO maxbyte ud/mod rot I c! LOOP 2drop ;
1.106 jwilke 1468: : DS@ ( addr -- n ) >r 0 0 r> tcell bounds swap 1-
1469: DO maxbyte * swap maxbyte um* rot + swap I c@ + swap -1 +LOOP ;
1.57 pazsan 1470: : Sc! ( n addr -- ) >r s>d r> tchar bounds
1471: DO maxbyte ud/mod rot I c! LOOP 2drop ;
1472: : Sc@ ( addr -- n ) >r 0 0 r> tchar bounds swap 1-
1473: DO maxbyte * swap maxbyte um* rot + swap I c@ + swap -1 +LOOP d>s ;
1.1 anton 1474: [THEN]
1475:
1.106 jwilke 1476: : S! ( n addr -- ) >r s>d r> DS! ;
1477: : S@ ( addr -- n ) DS@ d>s ;
1478:
1.67 jwilke 1479: : taddr>region ( taddr -- region | 0 )
1480: \G finds for a target-address the correct region
1481: \G returns 0 if taddr is not in range of a target memory region
1482: region-link
1483: BEGIN @ dup
1484: WHILE dup >r
1485: 0 >rlink - >r
1486: r@ >rlen @
1487: IF dup r@ borders within
1488: IF r> r> drop nip EXIT THEN
1489: THEN
1490: r> drop
1491: r>
1492: REPEAT
1493: 2drop 0 ;
1494:
1.103 jwilke 1495: : taddr>region-abort ( taddr -- region | 0 )
1496: dup taddr>region dup 0=
1497: IF drop cr ." Wrong address: " .addr
1498: -1 ABORT" Address out of range!"
1499: THEN nip ;
1500:
1.67 jwilke 1501: : (>regionimage) ( taddr -- 'taddr )
1502: dup
1503: \ find region we want to address
1.103 jwilke 1504: taddr>region-abort
1.67 jwilke 1505: >r
1506: \ calculate offset in region
1507: r@ >rstart @ -
1508: \ add regions real address in our memory
1509: r> >rmem @ + ;
1510:
1.103 jwilke 1511: : (>regionbm) ( taddr -- 'taddr bitmaskbaseaddr )
1512: dup
1513: \ find region we want to address
1514: taddr>region-abort
1515: >r
1516: \ calculate offset in region
1517: r@ >rstart @ -
1518: \ add regions real address in our memory
1519: r> >rbm @ ;
1520:
1521: : (>regiontype) ( taddr -- 'taddr )
1522: dup
1523: \ find region we want to address
1524: taddr>region-abort
1525: >r
1526: \ calculate offset in region
1527: r@ >rstart @ - tcell / cells
1528: \ add regions real address in our memory
1529: r> >rtype @ + ;
1530:
1.1 anton 1531: \ Bit string manipulation 06oct92py
1532: \ 9may93jaw
1533: CREATE Bittable 80 c, 40 c, 20 c, 10 c, 8 c, 4 c, 2 c, 1 c,
1534: : bits ( n -- n ) chars Bittable + c@ ;
1535:
1536: : >bit ( addr n -- c-addr mask ) 8 /mod rot + swap bits ;
1537: : +bit ( addr n -- ) >bit over c@ or swap c! ;
1.4 pazsan 1538: : -bit ( addr n -- ) >bit invert over c@ and swap c! ;
1.67 jwilke 1539:
1.103 jwilke 1540: : @relbit ( taddr -- f ) (>regionbm) swap cell/ >bit swap c@ and ;
1541:
1.84 jwilke 1542: : (relon) ( taddr -- )
1543: [ [IFDEF] fd-relocation-table ]
1544: s" +" fd-relocation-table write-file throw
1545: dup s>d <# #s #> fd-relocation-table write-line throw
1546: [ [THEN] ]
1.103 jwilke 1547: (>regionbm) swap cell/ +bit ;
1.84 jwilke 1548:
1549: : (reloff) ( taddr -- )
1550: [ [IFDEF] fd-relocation-table ]
1551: s" -" fd-relocation-table write-file throw
1552: dup s>d <# #s #> fd-relocation-table write-line throw
1553: [ [THEN] ]
1.103 jwilke 1554: (>regionbm) swap cell/ -bit ;
1.67 jwilke 1555:
1556: : (>image) ( taddr -- absaddr ) image @ + ;
1557:
1558: DEFER >image
1559: DEFER relon
1560: DEFER reloff
1561: DEFER correcter
1562:
1563: T has? relocate H
1564: [IF]
1565: ' (relon) IS relon
1566: ' (reloff) IS reloff
1.103 jwilke 1567: ' (>regionimage) IS >image
1.67 jwilke 1568: [ELSE]
1569: ' drop IS relon
1570: ' drop IS reloff
1.68 jwilke 1571: ' (>regionimage) IS >image
1.67 jwilke 1572: [THEN]
1.1 anton 1573:
1574: \ Target memory access 06oct92py
1575:
1576: : align+ ( taddr -- rest )
1.48 anton 1577: tcell tuck 1- and - [ tcell 1- ] Literal and ;
1.22 anton 1578: : cfalign+ ( taddr -- rest )
1.39 pazsan 1579: \ see kernel.fs:cfaligned
1.43 pazsan 1580: /maxalign tuck 1- and - [ /maxalign 1- ] Literal and ;
1.1 anton 1581:
1582: >TARGET
1583: : aligned ( taddr -- ta-addr ) dup align+ + ;
1584: \ assumes cell alignment granularity (as GNU C)
1585:
1.22 anton 1586: : cfaligned ( taddr1 -- taddr2 )
1.39 pazsan 1587: \ see kernel.fs
1.22 anton 1588: dup cfalign+ + ;
1589:
1.52 jwilke 1590: : @ ( taddr -- w ) >image S@ ;
1591: : ! ( w taddr -- ) >image S! ;
1.57 pazsan 1592: : c@ ( taddr -- char ) >image Sc@ ;
1593: : c! ( char taddr -- ) >image Sc! ;
1.7 anton 1594: : 2@ ( taddr -- x1 x2 ) T dup cell+ @ swap @ H ;
1.82 pazsan 1595: : 2! ( x1 x2 taddr -- ) T tuck ! cell+ ! H ;
1.1 anton 1596:
1597: \ Target compilation primitives 06oct92py
1598: \ included A! 16may93jaw
1599:
1600: : here ( -- there ) there ;
1601: : allot ( n -- ) tdp +! ;
1.78 jwilke 1602: : , ( w -- ) T here H tcell T allot ! H ;
1603: : c, ( char -- ) T here H tchar T allot c! H ;
1604: : align ( -- ) T here H align+ 0 ?DO bl T c, H tchar +LOOP ;
1.22 anton 1605: : cfalign ( -- )
1.78 jwilke 1606: T here H cfalign+ 0 ?DO bl T c, H tchar +LOOP ;
1.1 anton 1607:
1.71 jwilke 1608: : >address dup 0>= IF tbyte / THEN ; \ ?? jaw
1.59 pazsan 1609: : A! swap >address swap dup relon T ! H ;
1610: : A, ( w -- ) >address T here H relon T , H ;
1.1 anton 1611:
1.103 jwilke 1612:
1613: \ \ -------------------- Host/Target copy etc. 29aug01jaw
1614:
1615:
1616: >CROSS
1617:
1.107 jwilke 1618: : TD! >image DS! ;
1619: : TD@ >image DS@ ;
1620:
1.103 jwilke 1621: : th-count ( taddr -- host-addr len )
1622: \G returns host address of target string
1623: assert1( tbyte 1 = )
1624: dup X c@ swap X char+ >image swap ;
1625:
1626: : ht-move ( haddr taddr len -- )
1627: \G moves data from host-addr to destination in target-addr
1628: \G character by character
1629: swap -rot bounds ?DO I c@ over X c! X char+ LOOP drop ;
1630:
1631: 2Variable last-string
1632:
1633: : ht-string, ( addr count -- )
1634: dup there swap last-string 2!
1635: dup T c, H bounds ?DO I c@ T c, H LOOP ;
1636:
1637: >TARGET
1638:
1639: : count dup X c@ swap X char+ swap ;
1.110 jwilke 1640:
1641: : on -1 -1 rot TD! ;
1.103 jwilke 1642: : off T 0 swap ! H ;
1.1 anton 1643:
1.107 jwilke 1644: : tcmove ( source dest len -- )
1645: \G cmove in target memory
1646: tchar * bounds
1647: ?DO dup T c@ H I T c! H 1+
1648: tchar +LOOP drop ;
1649:
1650: : td, ( d -- )
1651: \G Store a host value as one cell into the target
1652: there tcell X allot TD! ;
1653:
1654: \ \ Load Assembler
1655:
1656: >TARGET
1657: H also Forth definitions
1658:
1659: \ FIXME: should we include the assembler really in the forth
1660: \ dictionary?!?!?!? This conflicts with the existing assembler
1661: \ of the host forth system!!
1662: [IFDEF] asm-include asm-include [THEN] hex
1663:
1664: previous
1665:
1666:
1.52 jwilke 1667: >CROSS
1668:
1.103 jwilke 1669: : (cc) T a, H ; ' (cc) plugin-of colon,
1.105 jwilke 1670: : (prim) T a, H ; ' (prim) plugin-of prim,
1.52 jwilke 1671:
1.105 jwilke 1672: : (cr) >tempdp ]comp prim, comp[ tempdp> ; ' (cr) plugin-of colon-resolve
1.103 jwilke 1673: : (ar) T ! H ; ' (ar) plugin-of addr-resolve
1.54 pazsan 1674: : (dr) ( ghost res-pnt target-addr addr )
1675: >tempdp drop over
1676: dup >magic @ <do:> =
1677: IF doer,
1678: ELSE dodoes,
1679: THEN
1.103 jwilke 1680: tempdp> ; ' (dr) plugin-of doer-resolve
1.54 pazsan 1681:
1682: : (cm) ( -- addr )
1683: T here align H
1.109 jwilke 1684: -1 prim, ; ' (cm) plugin-of colonmark,
1.1 anton 1685:
1.52 jwilke 1686: >TARGET
1.105 jwilke 1687: : compile, ( xt -- )
1.107 jwilke 1688: dup xt>ghost >comp @ EXECUTE ;
1.52 jwilke 1689: >CROSS
1.1 anton 1690:
1.102 jwilke 1691: \ resolve structure
1692:
1693: : >next ; \ link to next field
1694: : >tag cell+ ; \ indecates type of reference: 0: call, 1: address, 2: doer
1695: : >taddr cell+ cell+ ;
1696: : >ghost 3 cells + ;
1697: : >file 4 cells + ;
1698: : >line 5 cells + ;
1699:
1700: : (refered) ( ghost addr tag -- )
1701: \G creates a reference to ghost at address taddr
1.103 jwilke 1702: >space
1703: rot >link linked
1.102 jwilke 1704: ( taddr tag ) ,
1705: ( taddr ) ,
1706: last-header-ghost @ ,
1707: loadfile ,
1708: sourceline# ,
1.103 jwilke 1709: space>
1.102 jwilke 1710: ;
1711:
1.52 jwilke 1712: : refered ( ghost tag -- )
1.53 jwilke 1713: \G creates a resolve structure
1.54 pazsan 1714: T here aligned H swap (refered)
1715: ;
1716:
1717: : killref ( addr ghost -- )
1718: \G kills a forward reference to ghost at position addr
1719: \G this is used to eleminate a :dovar refence after making a DOES>
1720: dup >magic @ <fwd> <> IF 2drop EXIT THEN
1721: swap >r >link
1722: BEGIN dup @ dup ( addr last this )
1723: WHILE dup >taddr @ r@ =
1724: IF @ over !
1725: ELSE nip THEN
1726: REPEAT rdrop 2drop
1.53 jwilke 1727: ;
1.48 anton 1728:
1.52 jwilke 1729: Defer resolve-warning
1.1 anton 1730:
1.52 jwilke 1731: : reswarn-test ( ghost res-struct -- ghost res-struct )
1.78 jwilke 1732: over cr ." Resolving " .ghost dup ." in " >ghost @ .ghost ;
1.1 anton 1733:
1.52 jwilke 1734: : reswarn-forward ( ghost res-struct -- ghost res-struct )
1.78 jwilke 1735: over warnhead .ghost dup ." is referenced in "
1736: >ghost @ .ghost ;
1.1 anton 1737:
1.52 jwilke 1738: \ ' reswarn-test IS resolve-warning
1739:
1.1 anton 1740: \ resolve 14oct92py
1741:
1.54 pazsan 1742: : resolve-loop ( ghost resolve-list tcfa -- )
1743: >r
1744: BEGIN dup WHILE
1745: \ dup >tag @ 2 = IF reswarn-forward THEN
1746: resolve-warning
1747: r@ over >taddr @
1748: 2 pick >tag @
1749: CASE 0 OF colon-resolve ENDOF
1750: 1 OF addr-resolve ENDOF
1751: 2 OF doer-resolve ENDOF
1752: ENDCASE
1753: @ \ next list element
1754: REPEAT 2drop rdrop
1755: ;
1.52 jwilke 1756:
1757: \ : resolve-loop ( ghost tcfa -- ghost tcfa )
1758: \ >r dup >link @
1759: \ BEGIN dup WHILE dup T @ H r@ rot T ! H REPEAT drop r> ;
1.1 anton 1760:
1761: \ exists 9may93jaw
1762:
1.103 jwilke 1763: : exists ( ghost tcfa -- )
1764: \G print warning and set new target link in ghost
1765: swap exists-warning
1766: >link ! ;
1.52 jwilke 1767:
1.105 jwilke 1768: : colon-resolved ( ghost -- )
1769: >link @ colon, ; \ compile-call
1770:
1771: : prim-resolved ( ghost -- )
1772: >link @ prim, ;
1773:
1.110 jwilke 1774: \ FIXME: not used currently
1.105 jwilke 1775: : does-resolved ( ghost -- )
1776: dup g>body alit, >do:ghost @ g>body colon, ;
1777:
1778: : (is-forward) ( ghost -- )
1779: colonmark, 0 (refered) ; \ compile space for call
1780: ' (is-forward) IS is-forward
1.1 anton 1781:
1782: : resolve ( ghost tcfa -- )
1.54 pazsan 1783: \G resolve referencies to ghost with tcfa
1.103 jwilke 1784: dup taddr>region 0<> IF
1785: 2dup (>regiontype) define-addr-struct addr-xt-ghost
1786:
1787: \ we define new address only if empty
1.105 jwilke 1788: \ this is for not to take over the alias ghost
1789: \ (different ghost, but identical xt)
1.103 jwilke 1790: \ but the very first that really defines it
1791: dup @ 0= IF ! ELSE 2drop THEN
1792: THEN
1793:
1794: \ is ghost resolved?, second resolve means another
1795: \ definition with the same name
1.75 jwilke 1796: over undefined? 0= IF exists EXIT THEN
1.54 pazsan 1797: \ get linked-list
1798: swap >r r@ >link @ swap \ ( list tcfa R: ghost )
1799: \ mark ghost as resolved
1800: dup r@ >link ! <res> r@ >magic !
1.105 jwilke 1801: r@ >comp @ ['] is-forward = IF
1802: ['] prim-resolved r@ >comp ! THEN
1.54 pazsan 1803: \ loop through forward referencies
1804: r> -rot
1805: comp-state @ >r Resolving comp-state !
1806: resolve-loop
1807: r> comp-state !
1808:
1809: ['] noop IS resolve-warning
1.52 jwilke 1810: ;
1.1 anton 1811:
1812: \ gexecute ghost, 01nov92py
1813:
1.103 jwilke 1814: : (gexecute) ( ghost -- )
1.105 jwilke 1815: dup >comp @ EXECUTE ;
1.103 jwilke 1816:
1817: : gexecute ( ghost -- )
1.110 jwilke 1818: dup >magic @ <imm> = IF -1 ABORT" CROSS: gexecute on immediate word" THEN
1.103 jwilke 1819: (gexecute) ;
1.52 jwilke 1820:
1821: : addr, ( ghost -- )
1.105 jwilke 1822: dup forward? IF 1 refered 0 T a, H ELSE >link @ T a, H THEN ;
1.52 jwilke 1823:
1.1 anton 1824: \ .unresolved 11may93jaw
1825:
1826: variable ResolveFlag
1827:
1828: \ ?touched 11may93jaw
1829:
1.52 jwilke 1830: : ?touched ( ghost -- flag ) dup forward? swap >link @
1.1 anton 1831: 0 <> and ;
1832:
1.53 jwilke 1833: : .forwarddefs ( ghost -- )
1.103 jwilke 1834: ." appeared in:"
1835: >link
1836: BEGIN @ dup
1837: WHILE cr 5 spaces
1838: dup >ghost @ .ghost
1839: ." file " dup >file @ ?dup IF count type ELSE ." CON" THEN
1840: ." line " dup >line @ .dec
1841: REPEAT
1842: drop ;
1843:
1844: : ?resolved ( ghost -- )
1845: dup ?touched
1846: IF ResolveFlag on
1847: dup cr .ghost .forwarddefs
1.53 jwilke 1848: ELSE drop
1849: THEN ;
1.1 anton 1850:
1851: : .unresolved ( -- )
1852: ResolveFlag off cr ." Unresolved: "
1.103 jwilke 1853: ghost-list
1.1 anton 1854: BEGIN @ dup
1855: WHILE dup ?resolved
1.10 anton 1856: REPEAT drop ResolveFlag @
1857: IF
1.48 anton 1858: -1 abort" Unresolved words!"
1.10 anton 1859: ELSE
1860: ." Nothing!"
1861: THEN
1862: cr ;
1.1 anton 1863:
1.52 jwilke 1864: : .stats
1865: base @ >r decimal
1866: cr ." named Headers: " headers-named @ .
1867: r> base ! ;
1868:
1.79 jwilke 1869: >MINIMAL
1870:
1871: : .unresolved .unresolved ;
1872:
1.1 anton 1873: >CROSS
1874: \ Header states 12dec92py
1875:
1.102 jwilke 1876: \ : flag! ( 8b -- ) tlast @ dup >r T c@ xor r> c! H ;
1.90 pazsan 1877: bigendian [IF] 0 [ELSE] tcell 1- [THEN] Constant flag+
1878: : flag! ( w -- ) tlast @ flag+ + dup >r T c@ xor r> c! H ;
1.1 anton 1879:
1880: VARIABLE ^imm
1881:
1.105 jwilke 1882: \ !! should be target wordsize specific
1883: $80 constant alias-mask
1884: $40 constant immediate-mask
1885: $20 constant restrict-mask
1886:
1.1 anton 1887: >TARGET
1.105 jwilke 1888: : immediate immediate-mask flag!
1.18 pazsan 1889: ^imm @ @ dup <imm> = IF drop EXIT THEN
1.1 anton 1890: <res> <> ABORT" CROSS: Cannot immediate a unresolved word"
1891: <imm> ^imm @ ! ;
1.105 jwilke 1892: : restrict restrict-mask flag! ;
1.52 jwilke 1893:
1.54 pazsan 1894: : isdoer
1895: \G define a forth word as doer, this makes obviously only sence on
1896: \G forth processors such as the PSC1000
1897: <do:> last-header-ghost @ >magic ! ;
1.1 anton 1898: >CROSS
1899:
1900: \ Target Header Creation 01nov92py
1901:
1.103 jwilke 1902: : ht-lstring, ( addr count -- )
1.102 jwilke 1903: dup T , H bounds ?DO I c@ T c, H LOOP ;
1904:
1.103 jwilke 1905: >TARGET
1906: : name, ( "name" -- ) bl word count ht-lstring, X cfalign ;
1.1 anton 1907: : view, ( -- ) ( dummy ) ;
1.52 jwilke 1908: >CROSS
1.1 anton 1909:
1.25 pazsan 1910: \ Target Document Creation (goes to crossdoc.fd) 05jul95py
1911:
1.55 pazsan 1912: s" ./doc/crossdoc.fd" r/w create-file throw value doc-file-id
1.25 pazsan 1913: \ contains the file-id of the documentation file
1914:
1.40 pazsan 1915: : T-\G ( -- )
1.25 pazsan 1916: source >in @ /string doc-file-id write-line throw
1.40 pazsan 1917: postpone \ ;
1.25 pazsan 1918:
1.39 pazsan 1919: Variable to-doc to-doc on
1.25 pazsan 1920:
1921: : cross-doc-entry ( -- )
1922: to-doc @ tlast @ 0<> and \ not an anonymous (i.e. noname) header
1923: IF
1924: s" " doc-file-id write-line throw
1925: s" make-doc " doc-file-id write-file throw
1.102 jwilke 1926:
1.105 jwilke 1927: Last-Header-Ghost @ >ghostname doc-file-id write-file throw
1.25 pazsan 1928: >in @
1929: [char] ( parse 2drop
1930: [char] ) parse doc-file-id write-file throw
1931: s" )" doc-file-id write-file throw
1932: [char] \ parse 2drop
1.40 pazsan 1933: T-\G
1.25 pazsan 1934: >in !
1.39 pazsan 1935: THEN ;
1.25 pazsan 1936:
1.28 pazsan 1937: \ Target TAGS creation
1938:
1.39 pazsan 1939: s" kernel.TAGS" r/w create-file throw value tag-file-id
1.28 pazsan 1940: \ contains the file-id of the tags file
1941:
1942: Create tag-beg 2 c, 7F c, bl c,
1943: Create tag-end 2 c, bl c, 01 c,
1944: Create tag-bof 1 c, 0C c,
1945:
1946: 2variable last-loadfilename 0 0 last-loadfilename 2!
1947:
1948: : put-load-file-name ( -- )
1.77 jwilke 1949: sourcefilename last-loadfilename 2@ d<>
1.28 pazsan 1950: IF
1951: tag-bof count tag-file-id write-line throw
1.31 anton 1952: sourcefilename 2dup
1.28 pazsan 1953: tag-file-id write-file throw
1954: last-loadfilename 2!
1955: s" ,0" tag-file-id write-line throw
1956: THEN ;
1957:
1958: : cross-tag-entry ( -- )
1959: tlast @ 0<> \ not an anonymous (i.e. noname) header
1960: IF
1961: put-load-file-name
1962: source >in @ min tag-file-id write-file throw
1963: tag-beg count tag-file-id write-file throw
1.77 jwilke 1964: tlast @ >image count 1F and tag-file-id write-file throw
1.28 pazsan 1965: tag-end count tag-file-id write-file throw
1.31 anton 1966: base @ decimal sourceline# 0 <# #s #> tag-file-id write-file throw
1.28 pazsan 1967: \ >in @ 0 <# #s [char] , hold #> tag-file-id write-line throw
1968: s" ,0" tag-file-id write-line throw
1969: base !
1970: THEN ;
1971:
1.43 pazsan 1972: \ Check for words
1973:
1974: Defer skip? ' false IS skip?
1975:
1.103 jwilke 1976: : skipdef ( "name" -- )
1.79 jwilke 1977: \G skip definition of an undefined word in undef-words and
1978: \G all-words mode
1.103 jwilke 1979: Ghost dup forward?
1.75 jwilke 1980: IF >magic <skip> swap !
1981: ELSE drop THEN ;
1982:
1.103 jwilke 1983: : tdefined? ( "name" -- flag )
1984: Ghost undefined? 0= ;
1.75 jwilke 1985:
1.103 jwilke 1986: : defined2? ( "name" -- flag )
1.75 jwilke 1987: \G return true for anything else than forward, even for <skip>
1988: \G that's what we want
1.103 jwilke 1989: Ghost forward? 0= ;
1.43 pazsan 1990:
1.103 jwilke 1991: : forced? ( "name" -- flag )
1.79 jwilke 1992: \G return ture if it is a foreced skip with defskip
1.103 jwilke 1993: Ghost >magic @ <skip> = ;
1.79 jwilke 1994:
1.43 pazsan 1995: : needed? ( -- flag ) \ name
1.48 anton 1996: \G returns a false flag when
1997: \G a word is not defined
1998: \G a forward reference exists
1999: \G so the definition is not skipped!
2000: bl word gfind
1.75 jwilke 2001: IF dup undefined?
1.48 anton 2002: nip
2003: 0=
2004: ELSE drop true THEN ;
1.43 pazsan 2005:
1.44 pazsan 2006: : doer? ( -- flag ) \ name
1.103 jwilke 2007: Ghost >magic @ <do:> = ;
1.44 pazsan 2008:
1.43 pazsan 2009: : skip-defs ( -- )
2010: BEGIN refill WHILE source -trailing nip 0= UNTIL THEN ;
2011:
1.28 pazsan 2012: \ Target header creation
2013:
1.54 pazsan 2014: Variable NoHeaderFlag
2015: NoHeaderFlag off
1.1 anton 2016:
1.54 pazsan 2017: : 0.r ( n1 n2 -- )
2018: base @ >r hex
2019: 0 swap <# 0 ?DO # LOOP #> type
2020: r> base ! ;
1.84 jwilke 2021:
2022: : .sym ( adr len -- )
2023: \G escapes / and \ to produce sed output
1.52 jwilke 2024: bounds
2025: DO I c@ dup
1.77 jwilke 2026: CASE [char] / OF drop ." \/" ENDOF
2027: [char] \ OF drop ." \\" ENDOF
1.52 jwilke 2028: dup OF emit ENDOF
2029: ENDCASE
1.54 pazsan 2030: LOOP ;
1.52 jwilke 2031:
1.103 jwilke 2032: Defer setup-execution-semantics
2033: 0 Value lastghost
2034:
2035: : (THeader ( "name" -- ghost )
1.54 pazsan 2036: \ >in @ bl word count type 2 spaces >in !
2037: \ wordheaders will always be compiled to rom
2038: switchrom
2039: \ build header in target
2040: NoHeaderFlag @
2041: IF NoHeaderFlag off
2042: ELSE
2043: T align H view,
1.78 jwilke 2044: tlast @ dup 0> IF tcell - THEN T A, H there tlast !
1.54 pazsan 2045: 1 headers-named +! \ Statistic
2046: >in @ T name, H >in !
2047: THEN
2048: T cfalign here H tlastcfa !
1.84 jwilke 2049: \ Old Symbol table sed-script
1.54 pazsan 2050: \ >in @ cr ." sym:s/CFA=" there 4 0.r ." /" bl word count .sym ." /g" cr >in !
1.103 jwilke 2051: HeaderGhost
1.84 jwilke 2052: \ output symbol table to extra file
2053: [ [IFDEF] fd-symbol-table ]
2054: base @ hex there s>d <# 8 0 DO # LOOP #> fd-symbol-table write-file throw base !
2055: s" :" fd-symbol-table write-file throw
2056: dup >ghostname fd-symbol-table write-line throw
2057: [ [THEN] ]
1.103 jwilke 2058: dup Last-Header-Ghost ! dup to lastghost
1.54 pazsan 2059: dup >magic ^imm ! \ a pointer for immediate
1.105 jwilke 2060: alias-mask flag!
1.103 jwilke 2061: cross-doc-entry cross-tag-entry
2062: setup-execution-semantics
2063: ;
1.1 anton 2064:
1.52 jwilke 2065: \ this is the resolver information from ":"
2066: \ resolving is done by ";"
1.103 jwilke 2067: Variable ;Resolve 1 cells allot
2068:
2069: : hereresolve ( ghost -- )
2070: there resolve 0 ;Resolve ! ;
1.1 anton 2071:
1.11 pazsan 2072: : Theader ( "name" -- ghost )
1.103 jwilke 2073: (THeader dup hereresolve ;
2074:
2075: Variable aprim-nr -20 aprim-nr !
2076:
2077: : copy-execution-semantics ( ghost-from ghost-dest -- )
2078: >r
2079: dup >exec @ r@ >exec !
2080: dup >exec2 @ r@ >exec2 !
2081: dup >exec-compile @ r@ >exec-compile !
2082: dup >ghost-xt @ r@ >ghost-xt !
2083: dup >created @ r@ >created !
2084: rdrop drop ;
1.1 anton 2085:
2086: >TARGET
1.103 jwilke 2087:
1.1 anton 2088: : Alias ( cfa -- ) \ name
1.103 jwilke 2089: >in @ skip? IF 2drop EXIT THEN >in !
2090: (THeader ( S xt ghost )
1.105 jwilke 2091: 2dup swap xt>ghost swap copy-execution-semantics
2092: over resolve T A, H alias-mask flag! ;
1.103 jwilke 2093:
2094: Variable last-prim-ghost
2095: 0 last-prim-ghost !
2096:
2097: : asmprimname, ( ghost -- : name )
2098: dup last-prim-ghost !
2099: >r
2100: here bl word count string, r@ >asm-name !
2101: aprim-nr @ r> >asm-dummyaddr ! ;
2102:
2103: Defer setup-prim-semantics
2104:
2105: : aprim ( -- )
2106: THeader -1 aprim-nr +! aprim-nr @ T A, H
2107: asmprimname,
2108: setup-prim-semantics ;
2109:
2110: : aprim: ( -- )
2111: -1 aprim-nr +! aprim-nr @
2112: Ghost tuck swap resolve <do:> swap tuck >magic !
2113: asmprimname, ;
2114:
1.42 pazsan 2115: : Alias: ( cfa -- ) \ name
1.103 jwilke 2116: >in @ skip? IF 2drop EXIT THEN >in !
2117: dup 0< s" prims" T $has? H 0= and
2118: IF
2119: .sourcepos ." needs doer: " >in @ bl word count type >in ! cr
2120: THEN
2121: Ghost tuck swap resolve <do:> swap >magic ! ;
1.64 pazsan 2122:
2123: Variable prim#
2124: : first-primitive ( n -- ) prim# ! ;
2125: : Primitive ( -- ) \ name
1.103 jwilke 2126: >in @ skip? IF 2drop EXIT THEN >in !
2127: dup 0< s" prims" T $has? H 0= and
2128: IF
2129: .sourcepos ." needs prim: " >in @ bl word count type >in ! cr
2130: THEN
2131: prim# @ (THeader ( S xt ghost )
1.105 jwilke 2132: dup >ghost-flags <primitive> set-flag
2133: over resolve T A, H alias-mask flag!
1.103 jwilke 2134: -1 prim# +! ;
1.1 anton 2135: >CROSS
2136:
2137: \ Conditionals and Comments 11may93jaw
2138:
1.103 jwilke 2139: \G saves the existing cond action, this is used for redefining in
2140: \G instant
2141: Variable cond-xt-old
2142:
2143: : cond-target ( -- )
2144: \G Compiles semantic of redefined cond into new one
2145: cond-xt-old @ compile, ; immediate restrict
2146:
1.1 anton 2147: : ;Cond
2148: postpone ;
2149: swap ! ; immediate
2150:
1.103 jwilke 2151: : Cond: ( "name" -- )
2152: \g defines a conditional or another word that must
2153: \g be executed directly while compiling
2154: \g these words have no interpretative semantics by default
2155: Ghost
2156: >exec-compile
2157: dup @ cond-xt-old !
1.1 anton 2158: :NONAME ;
2159:
2160:
2161: : Comment ( -- )
1.103 jwilke 2162: >in @ Ghost swap >in ! ' swap
2163: 2dup >exec-compile ! >exec ! ;
1.1 anton 2164:
2165: Comment ( Comment \
2166:
2167: \ compile 10may93jaw
2168:
1.103 jwilke 2169: : compile ( "name" -- ) \ name
2170: \ bl word gfind 0= ABORT" CROSS: Can't compile "
2171: ghost
2172: dup >exec-compile @ ?dup
2173: IF nip compile,
2174: ELSE postpone literal postpone gexecute THEN ; immediate restrict
2175:
1.52 jwilke 2176: >TARGET
2177:
1.105 jwilke 2178: : ' ( -- xt )
2179: \G returns the target-cfa of a ghost
1.52 jwilke 2180: bl word gfind 0= ABORT" CROSS: Ghost don't exists"
1.105 jwilke 2181: g>xt ;
1.52 jwilke 2182:
1.103 jwilke 2183: \ FIXME: this works for the current use cases, but is not
2184: \ in all cases correct ;-)
2185: : comp' X ' 0 ;
2186:
1.52 jwilke 2187: Cond: ['] T ' H alit, ;Cond
2188:
2189: >CROSS
2190:
2191: : [T']
2192: \ returns the target-cfa of a ghost, or compiles it as literal
1.105 jwilke 2193: postpone [G'] state @ IF postpone g>xt ELSE g>xt THEN ; immediate
1.42 pazsan 2194:
1.52 jwilke 2195: \ \ threading modell 13dec92py
2196: \ modularized 14jun97jaw
2197:
1.106 jwilke 2198: T 2 cells H Value xt>body
1.52 jwilke 2199:
1.103 jwilke 2200: : (>body) ( cfa -- pfa )
1.105 jwilke 2201: xt>body + ; ' (>body) plugin-of t>body
2202:
2203: : fillcfa ( usedcells -- )
1.106 jwilke 2204: T cells H xt>body swap -
1.105 jwilke 2205: assert1( dup 0 >= )
2206: 0 ?DO 0 X c, tchar +LOOP ;
1.52 jwilke 2207:
1.103 jwilke 2208: : (doer,) ( ghost -- )
1.105 jwilke 2209: addr, 1 fillcfa ; ' (doer,) plugin-of doer,
1.52 jwilke 2210:
1.105 jwilke 2211: : (docol,) ( -- ) [G'] :docol (doer,) ; ' (docol,) plugin-of docol,
1.52 jwilke 2212:
2213: : (doprim,) ( -- )
1.105 jwilke 2214: there xt>body + ca>native T a, H 1 fillcfa ; ' (doprim,) plugin-of doprim,
1.52 jwilke 2215:
2216: : (doeshandler,) ( -- )
1.105 jwilke 2217: T cfalign H compile :doesjump T 0 , H ; ' (doeshandler,) plugin-of doeshandler,
1.52 jwilke 2218:
2219: : (dodoes,) ( does-action-ghost -- )
2220: ]comp [G'] :dodoes gexecute comp[
2221: addr,
1.103 jwilke 2222: \ the relocator in the c engine, does not like the
2223: \ does-address to marked for relocation
2224: [ T e? ec H 0= [IF] ] T here H tcell - reloff [ [THEN] ]
1.105 jwilke 2225: 2 fillcfa ; ' (dodoes,) plugin-of dodoes,
1.52 jwilke 2226:
1.107 jwilke 2227: : (dlit,) ( n -- ) compile lit td, ; ' (dlit,) plugin-of dlit,
2228:
2229: : (lit,) ( n -- ) s>d dlit, ; ' (lit,) plugin-of lit,
1.52 jwilke 2230:
1.67 jwilke 2231: \ if we dont produce relocatable code alit, defaults to lit, jaw
1.84 jwilke 2232: \ this is just for convenience, so we don't have to define alit,
2233: \ seperately for embedded systems....
2234: T has? relocate H
1.67 jwilke 2235: [IF]
1.105 jwilke 2236: : (alit,) ( n -- ) compile lit T a, H ; ' (alit,) plugin-of alit,
1.67 jwilke 2237: [ELSE]
1.105 jwilke 2238: : (alit,) ( n -- ) lit, ; ' (alit,) plugin-of alit,
1.67 jwilke 2239: [THEN]
1.52 jwilke 2240:
1.105 jwilke 2241: : (fini,) compile ;s ; ' (fini,) plugin-of fini,
1.42 pazsan 2242:
1.43 pazsan 2243: [IFUNDEF] (code)
2244: Defer (code)
2245: Defer (end-code)
2246: [THEN]
2247:
1.1 anton 2248: >TARGET
1.43 pazsan 2249: : Code
1.52 jwilke 2250: defempty?
1.48 anton 2251: (THeader there resolve
1.53 jwilke 2252: [ T e? prims H 0= [IF] T e? ITC H [ELSE] true [THEN] ] [IF]
1.52 jwilke 2253: doprim,
1.48 anton 2254: [THEN]
2255: depth (code) ;
1.43 pazsan 2256:
2257: : Code:
1.52 jwilke 2258: defempty?
1.103 jwilke 2259: Ghost dup there ca>native resolve <do:> swap >magic !
1.43 pazsan 2260: depth (code) ;
2261:
2262: : end-code
1.52 jwilke 2263: (end-code)
1.43 pazsan 2264: depth ?dup IF 1- <> ABORT" CROSS: Stack changed"
2265: ELSE true ABORT" CROSS: Stack empty" THEN
1.52 jwilke 2266: ;
1.14 anton 2267:
1.1 anton 2268: >CROSS
1.52 jwilke 2269:
1.1 anton 2270: \ tLiteral 12dec92py
2271:
2272: >TARGET
1.40 pazsan 2273: Cond: \G T-\G ;Cond
2274:
1.105 jwilke 2275: Cond: Literal ( n -- ) lit, ;Cond
1.103 jwilke 2276: Cond: ALiteral ( n -- ) alit, ;Cond
1.1 anton 2277:
2278: : Char ( "<char>" -- ) bl word char+ c@ ;
1.103 jwilke 2279: Cond: [Char] ( "<char>" -- ) Char lit, ;Cond
2280:
1.104 jwilke 2281: tchar 1 = [IF]
1.110 jwilke 2282: Cond: chars ;Cond
1.104 jwilke 2283: [THEN]
1.1 anton 2284:
1.43 pazsan 2285: \ some special literals 27jan97jaw
2286:
1.52 jwilke 2287: \ !! Known Bug: Special Literals and plug-ins work only correct
1.102 jwilke 2288: \ on 16 and 32 Bit Targets and 32 Bit Hosts!
1.52 jwilke 2289:
1.107 jwilke 2290: \ This section could be done with dlit, now. But first I need
2291: \ some test code JAW
2292:
1.43 pazsan 2293: Cond: MAXU
1.102 jwilke 2294: tcell 1 cells u>
2295: IF compile lit tcell 0 ?DO FF T c, H LOOP
2296: ELSE ffffffff lit, THEN
1.52 jwilke 2297: ;Cond
1.43 pazsan 2298:
2299: Cond: MINI
1.102 jwilke 2300: tcell 1 cells u>
2301: IF compile lit bigendian
2302: IF 80 T c, H tcell 1 ?DO 0 T c, H LOOP
2303: ELSE tcell 1 ?DO 0 T c, H LOOP 80 T c, H
2304: THEN
2305: ELSE tcell 2 = IF 8000 ELSE 80000000 THEN lit, THEN
1.52 jwilke 2306: ;Cond
1.43 pazsan 2307:
2308: Cond: MAXI
1.102 jwilke 2309: tcell 1 cells u>
2310: IF compile lit bigendian
2311: IF 7F T c, H tcell 1 ?DO FF T c, H LOOP
2312: ELSE tcell 1 ?DO FF T c, H LOOP 7F T c, H
2313: THEN
2314: ELSE tcell 2 = IF 7fff ELSE 7fffffff THEN lit, THEN
1.43 pazsan 2315: ;Cond
2316:
1.1 anton 2317: >CROSS
2318: \ Target compiling loop 12dec92py
2319: \ ">tib trick thrown out 10may93jaw
2320: \ number? defined at the top 11may93jaw
1.77 jwilke 2321: \ replaced >in by save-input
2322:
2323: : discard 0 ?DO drop LOOP ;
1.1 anton 2324:
2325: \ compiled word might leave items on stack!
1.77 jwilke 2326: : tcom ( x1 .. xn n name -- )
2327: \ dup count type space
1.103 jwilke 2328: gfind
2329: IF >r ( discard saved input state ) discard r>
2330: dup >exec-compile @ ?dup
2331: IF nip execute-exec-compile ELSE gexecute THEN
1.77 jwilke 2332: EXIT
2333: THEN
2334: number? dup
2335: IF 0> IF swap lit, THEN lit, discard
1.103 jwilke 2336: ELSE 2drop restore-input throw Ghost gexecute THEN ;
1.1 anton 2337:
2338: >TARGET
2339: \ : ; DOES> 13dec92py
2340: \ ] 9may93py/jaw
2341:
1.105 jwilke 2342: : compiling-state ( -- )
2343: \G set states to compililng
1.54 pazsan 2344: Compiling comp-state !
1.103 jwilke 2345: \ if we have a state in target, change it with the compile state
1.105 jwilke 2346: [G'] state dup undefined? 0=
2347: IF >ghost-xt @ execute X on ELSE drop THEN ;
2348:
2349: : interpreting-state ( -- )
2350: \G set states to interpreting
2351: \ if target has a state variable, change it according to our state
2352: [G'] state dup undefined? 0=
2353: IF >ghost-xt @ execute X off ELSE drop THEN
2354: Interpreting comp-state ! ;
2355:
2356: : ]
2357: compiling-state
1.1 anton 2358: BEGIN
1.77 jwilke 2359: BEGIN save-input bl word
2360: dup c@ 0= WHILE drop discard refill 0=
1.1 anton 2361: ABORT" CROSS: End of file while target compiling"
2362: REPEAT
2363: tcom
1.103 jwilke 2364: compiling? 0=
1.1 anton 2365: UNTIL ;
2366:
2367: \ by the way: defining a second interpreter (a compiler-)loop
2368: \ is not allowed if a system should be ans conform
2369:
1.110 jwilke 2370: : (:) ( ghost -- )
2371: \ common factor of : and :noname. Prepare ;Resolve and start definition
2372: ;Resolve ! there ;Resolve cell+ !
2373: docol, ]comp colon-start depth T ] H ;
2374:
1.1 anton 2375: : : ( -- colon-sys ) \ Name
1.52 jwilke 2376: defempty?
2377: constflag off \ don't let this flag work over colon defs
2378: \ just to go sure nothing unwanted happens
1.43 pazsan 2379: >in @ skip? IF drop skip-defs EXIT THEN >in !
1.110 jwilke 2380: (THeader (:) ;
1.1 anton 2381:
1.37 pazsan 2382: : :noname ( -- colon-sys )
1.110 jwilke 2383: X cfalign there
2384: \ define a nameless ghost
2385: here ghostheader dup last-header-ghost ! dup to lastghost
2386: (:) ;
1.37 pazsan 2387:
1.103 jwilke 2388: Cond: EXIT ( -- ) compile ;S ;Cond
1.6 anton 2389:
2390: Cond: ?EXIT ( -- ) 1 abort" CROSS: using ?exit" ;Cond
1.2 pazsan 2391:
1.52 jwilke 2392: >CROSS
2393: : LastXT ;Resolve @ 0= abort" CROSS: no definition for LastXT"
2394: ;Resolve cell+ @ ;
2395:
2396: >TARGET
2397:
1.103 jwilke 2398: Cond: recurse ( -- ) Last-Header-Ghost @ gexecute ;Cond
1.52 jwilke 2399:
1.103 jwilke 2400: Cond: ; ( -- )
1.105 jwilke 2401: depth ?dup
2402: IF 1- <> ABORT" CROSS: Stack changed"
2403: ELSE true ABORT" CROSS: Stack empty"
2404: THEN
2405: colon-end
2406: fini,
2407: comp[
2408: ;Resolve @
2409: IF ;Resolve @ ;Resolve cell+ @ resolve
2410: ['] colon-resolved ;Resolve @ >comp !
2411: THEN
2412: interpreting-state
2413: ;Cond
2414:
2415: Cond: [ ( -- ) interpreting-state ;Cond
1.1 anton 2416:
2417: >CROSS
1.54 pazsan 2418:
2419: Create GhostDummy ghostheader
2420: <res> GhostDummy >magic !
2421:
1.52 jwilke 2422: : !does ( does-action -- )
2423: \ !! zusammenziehen und dodoes, machen!
1.54 pazsan 2424: tlastcfa @ [G'] :dovar killref
2425: \ tlastcfa @ dup there >r tdp ! compile :dodoes r> tdp ! T cell+ ! H ;
1.52 jwilke 2426: \ !! geht so nicht, da dodoes, ghost will!
1.54 pazsan 2427: GhostDummy >link ! GhostDummy
2428: tlastcfa @ >tempdp dodoes, tempdp> ;
1.1 anton 2429:
1.103 jwilke 2430:
2431: Defer instant-interpret-does>-hook
2432:
2433: : resolve-does>-part ( -- )
2434: \ resolve words made by builders
1.105 jwilke 2435: Last-Header-Ghost @ >do:ghost @ ?dup
2436: IF there resolve
2437: \ TODO: set special DOES> resolver action here
2438: THEN ;
1.103 jwilke 2439:
1.1 anton 2440: >TARGET
1.103 jwilke 2441: Cond: DOES>
2442: compile (does>) doeshandler,
2443: resolve-does>-part
1.1 anton 2444: ;Cond
1.103 jwilke 2445:
2446: : DOES> switchrom doeshandler, T here H !does
2447: instant-interpret-does>-hook
2448: depth T ] H ;
1.1 anton 2449:
2450: >CROSS
1.108 jwilke 2451: \ Creation 01nov92py
1.1 anton 2452:
2453: \ Builder 11may93jaw
2454:
1.108 jwilke 2455: 0 Value built
2456:
1.105 jwilke 2457: : Builder ( Create-xt do-ghost "name" -- )
1.52 jwilke 2458: \ builds up a builder in current vocabulary
2459: \ create-xt is executed when word is interpreted
1.106 jwilke 2460: \ do:-xt is executed when the created word from builder is executed
1.105 jwilke 2461: \ for do:-xt an additional entry after the normal ghost-entrys is used
1.52 jwilke 2462:
1.109 jwilke 2463: ghost to built
1.108 jwilke 2464: built >created @ 0= IF
2465: built >created on
2466: ['] prim-resolved built >comp !
2467: THEN ;
1.1 anton 2468:
1.52 jwilke 2469: : gdoes, ( ghost -- )
2470: \ makes the codefield for a word that is built
1.103 jwilke 2471: >do:ghost @ dup undefined? 0=
1.52 jwilke 2472: IF
1.42 pazsan 2473: dup >magic @ <do:> =
1.54 pazsan 2474: IF doer,
2475: ELSE dodoes,
2476: THEN
2477: EXIT
1.52 jwilke 2478: THEN
2479: \ compile :dodoes gexecute
2480: \ T here H tcell - reloff
1.54 pazsan 2481: 2 refered
2482: 0 fillcfa
2483: ;
1.1 anton 2484:
1.103 jwilke 2485: : takeover-x-semantics ( S constructor-ghost new-ghost -- )
1.105 jwilke 2486: \g stores execution semantic and compilation semantic in the built word
2487: swap >do:ghost @
1.110 jwilke 2488: \ we use the >exec2 field for the semantic of a created word,
2489: \ using exec or exec2 makes no difference for normal cross-compilation
2490: \ but is usefull for instant where the exec field is already
2491: \ defined (e.g. Vocabularies)
1.105 jwilke 2492: 2dup >exec @ swap >exec2 !
2493: >comp @ swap >comp ! ;
1.103 jwilke 2494:
1.52 jwilke 2495: : TCreate ( <name> -- )
2496: create-forward-warn
2497: IF ['] reswarn-forward IS resolve-warning THEN
1.103 jwilke 2498: executed-ghost @ (Theader
2499: dup >created on
2500: 2dup takeover-x-semantics hereresolve gdoes, ;
1.52 jwilke 2501:
2502: : RTCreate ( <name> -- )
2503: \ creates a new word with code-field in ram
2504: create-forward-warn
2505: IF ['] reswarn-forward IS resolve-warning THEN
2506: \ make Alias
1.103 jwilke 2507: executed-ghost @ (THeader
2508: dup >created on
2509: 2dup takeover-x-semantics
1.105 jwilke 2510: there 0 T a, H alias-mask flag!
1.103 jwilke 2511: \ store poiter to code-field
1.52 jwilke 2512: switchram T cfalign H
2513: there swap T ! H
2514: there tlastcfa !
1.103 jwilke 2515: hereresolve gdoes, ;
1.1 anton 2516:
2517: : Build: ( -- [xt] [colon-sys] )
1.52 jwilke 2518: :noname postpone TCreate ;
2519:
2520: : BuildSmart: ( -- [xt] [colon-sys] )
2521: :noname
1.53 jwilke 2522: [ T has? rom H [IF] ]
1.52 jwilke 2523: postpone RTCreate
2524: [ [ELSE] ]
2525: postpone TCreate
2526: [ [THEN] ] ;
1.1 anton 2527:
1.108 jwilke 2528: : ;Build
2529: postpone ; built >exec ! ; immediate
2530:
1.1 anton 2531: : gdoes> ( ghost -- addr flag )
1.110 jwilke 2532: executed-ghost @ g>body ;
1.1 anton 2533:
2534: \ DO: ;DO 11may93jaw
2535:
1.108 jwilke 2536: : do:ghost! ( ghost -- ) built >do:ghost ! ;
2537: : doexec! ( xt -- ) built >do:ghost @ >exec ! ;
2538:
2539: : DO: ( -- [xt] [colon-sys] )
2540: here ghostheader do:ghost!
1.110 jwilke 2541: :noname postpone gdoes> ;
1.1 anton 2542:
1.108 jwilke 2543: : by: ( -- [xt] [colon-sys] ) \ name
2544: Ghost do:ghost!
1.110 jwilke 2545: :noname postpone gdoes> ;
1.42 pazsan 2546:
1.108 jwilke 2547: : ;DO ( [xt] [colon-sys] -- )
2548: postpone ; doexec! ; immediate
1.1 anton 2549:
1.109 jwilke 2550: : by ( -- ) \ Name
1.108 jwilke 2551: Ghost >do:ghost @ do:ghost! ;
1.107 jwilke 2552:
1.109 jwilke 2553: : compile: ( --[xt] [colon-sys] )
1.107 jwilke 2554: \G defines a compile time action for created words
2555: \G by this builder
2556: :noname ;
2557:
1.109 jwilke 2558: : ;compile ( [xt] [colon-sys] -- )
2559: postpone ; built >do:ghost @ >comp ! ; immediate
1.107 jwilke 2560:
1.1 anton 2561: \ Variables and Constants 05dec92py
2562:
1.108 jwilke 2563: Builder (Constant)
2564: Build: ( n -- ) ;Build
1.103 jwilke 2565: by: :docon ( target-body-addr -- n ) T @ H ;DO
1.52 jwilke 2566:
1.108 jwilke 2567: Builder Constant
2568: Build: ( n -- ) T , H ;Build
1.52 jwilke 2569: by (Constant)
2570:
1.108 jwilke 2571: Builder AConstant
2572: Build: ( n -- ) T A, H ;Build
1.52 jwilke 2573: by (Constant)
2574:
1.108 jwilke 2575: Builder 2Constant
2576: Build: ( d -- ) T , , H ;Build
1.52 jwilke 2577: DO: ( ghost -- d ) T dup cell+ @ swap @ H ;DO
2578:
1.108 jwilke 2579: Builder Create
2580: BuildSmart: ;Build
1.103 jwilke 2581: by: :dovar ( target-body-addr -- addr ) ;DO
1.1 anton 2582:
1.108 jwilke 2583: Builder Variable
1.53 jwilke 2584: T has? rom H [IF]
1.108 jwilke 2585: Build: ( -- ) T here 0 A, H switchram T align here swap ! 0 , H ( switchrom ) ;Build
1.52 jwilke 2586: by (Constant)
2587: [ELSE]
1.108 jwilke 2588: Build: T 0 , H ;Build
1.1 anton 2589: by Create
1.52 jwilke 2590: [THEN]
1.1 anton 2591:
1.108 jwilke 2592: Builder 2Variable
1.53 jwilke 2593: T has? rom H [IF]
1.108 jwilke 2594: Build: ( -- ) T here 0 A, H switchram T align here swap ! 0 , 0 , H ( switchrom ) ;Build
1.54 pazsan 2595: by (Constant)
2596: [ELSE]
1.108 jwilke 2597: Build: T 0 , 0 , H ;Build
1.54 pazsan 2598: by Create
2599: [THEN]
2600:
1.108 jwilke 2601: Builder AVariable
1.54 pazsan 2602: T has? rom H [IF]
1.108 jwilke 2603: Build: ( -- ) T here 0 A, H switchram T align here swap ! 0 A, H ( switchrom ) ;Build
1.52 jwilke 2604: by (Constant)
2605: [ELSE]
1.108 jwilke 2606: Build: T 0 A, H ;Build
1.1 anton 2607: by Create
1.52 jwilke 2608: [THEN]
1.1 anton 2609:
1.3 pazsan 2610: \ User variables 04may94py
2611:
2612: Variable tup 0 tup !
2613: Variable tudp 0 tudp !
1.78 jwilke 2614:
1.3 pazsan 2615: : u, ( n -- udp )
2616: tup @ tudp @ + T ! H
1.19 pazsan 2617: tudp @ dup T cell+ H tudp ! ;
1.78 jwilke 2618:
1.3 pazsan 2619: : au, ( n -- udp )
2620: tup @ tudp @ + T A! H
1.19 pazsan 2621: tudp @ dup T cell+ H tudp ! ;
1.78 jwilke 2622:
1.108 jwilke 2623: Builder User
2624: Build: 0 u, X , ;Build
1.78 jwilke 2625: by: :douser ( ghost -- up-addr ) X @ tup @ + ;DO
1.1 anton 2626:
1.108 jwilke 2627: Builder 2User
2628: Build: 0 u, X , 0 u, drop ;Build
1.3 pazsan 2629: by User
1.1 anton 2630:
1.108 jwilke 2631: Builder AUser
2632: Build: 0 au, X , ;Build
1.3 pazsan 2633: by User
1.1 anton 2634:
1.108 jwilke 2635: Builder (Value)
2636: Build: ( n -- ) ;Build
2637: by: :docon ( target-body-addr -- n ) T @ H ;DO
2638:
1.1 anton 2639: Builder Value
1.108 jwilke 2640: BuildSmart: T , H ;Build
2641: by (Value)
1.1 anton 2642:
1.32 pazsan 2643: Builder AValue
1.108 jwilke 2644: BuildSmart: T A, H ;Build
2645: by (Value)
1.32 pazsan 2646:
1.103 jwilke 2647: Defer texecute
2648:
1.108 jwilke 2649: Builder Defer
2650: BuildSmart: ( -- ) [T'] noop T A, H ;Build
1.103 jwilke 2651: by: :dodefer ( ghost -- ) X @ texecute ;DO
1.37 pazsan 2652:
1.108 jwilke 2653: Builder interpret/compile:
2654: Build: ( inter comp -- ) swap T immediate A, A, H ;Build
1.37 pazsan 2655: DO: ( ghost -- ) ABORT" CROSS: Don't execute" ;DO
1.24 pazsan 2656:
2657: \ Sturctures 23feb95py
2658:
2659: : nalign ( addr1 n -- addr2 )
2660: \ addr2 is the aligned version of addr1 wrt the alignment size n
2661: 1- tuck + swap invert and ;
1.109 jwilke 2662:
1.24 pazsan 2663:
1.108 jwilke 2664: Builder (Field)
2665: Build: ;Build
1.44 pazsan 2666: by: :dofield T @ H + ;DO
2667:
1.108 jwilke 2668: Builder Field
1.51 anton 2669: Build: ( align1 offset1 align size "name" -- align2 offset2 )
2670: rot dup T , H ( align1 align size offset1 )
1.108 jwilke 2671: + >r nalign r> ;Build
1.44 pazsan 2672: by (Field)
1.24 pazsan 2673:
1.109 jwilke 2674: >TARGET
1.51 anton 2675: : struct T 1 chars 0 H ;
1.24 pazsan 2676: : end-struct T 2Constant H ;
2677:
1.52 jwilke 2678: : cell% ( n -- size align )
1.51 anton 2679: T 1 cells H dup ;
1.109 jwilke 2680: >CROSS
1.88 pazsan 2681:
1.105 jwilke 2682: \ Input-Methods 01py
1.103 jwilke 2683:
1.108 jwilke 2684: Builder input-method
2685: Build: ( m v -- m' v ) dup T , cell+ H ;Build
1.88 pazsan 2686: DO: abort" Not in cross mode" ;DO
2687:
1.108 jwilke 2688: Builder input-var
2689: Build: ( m v size -- m v' ) over T , H + ;Build
1.88 pazsan 2690: DO: abort" Not in cross mode" ;DO
1.24 pazsan 2691:
1.108 jwilke 2692: \ Peephole optimization 05sep01jaw
2693:
2694: \ this section defines different compilation
2695: \ actions for created words
2696: \ this will help the peephole optimizer
2697: \ I (jaw) took this from bernds lates cross-compiler
2698: \ changes but seperated it from the original
2699: \ Builder words. The final plan is to put this
2700: \ into a seperate file, together with the peephole
2701: \ optimizer for cross
2702:
2703:
2704: T has? peephole H [IF]
2705:
1.109 jwilke 2706: >CROSS
2707: : (callc) compile call T >body a, H ; ' (callc) plugin-of colon,
2708:
2709: \ if we want this, we have to spilt aconstant
2710: \ and constant!!
2711: \ Builder (Constant)
2712: \ compile: g>body X @ lit, ;compile
1.108 jwilke 2713:
2714: Builder (Constant)
1.109 jwilke 2715: compile: g>body alit, compile @ ;compile
1.108 jwilke 2716:
2717: Builder (Value)
2718: compile: g>body alit, compile @ ;compile
2719:
2720: \ this changes also Variable, AVariable and 2Variable
2721: Builder Create
2722: \ compile: g>body alit, ;compile
2723:
2724: Builder User
2725: compile: g>body compile useraddr T @ , H ;compile
2726:
2727: Builder Defer
2728: compile: g>body alit, compile @ compile execute ;compile
1.102 jwilke 2729:
1.108 jwilke 2730: Builder (Field)
2731: compile: g>body T @ H lit, compile + ;compile
1.102 jwilke 2732:
1.108 jwilke 2733: [THEN]
1.103 jwilke 2734:
1.52 jwilke 2735: \ structural conditionals 17dec92py
2736:
2737: >CROSS
1.103 jwilke 2738: : (ncontrols?) ( n -- )
2739: \g We expect n open control structures
2740: depth over u<=
2741: ABORT" CROSS: unstructured, stack underflow"
2742: 0 ?DO I pick 0=
2743: ABORT" CROSS: unstructured"
2744: LOOP ; ' (ncontrols?) plugin-of ncontrols?
2745:
2746: \ : ?struc ( flag -- ) ABORT" CROSS: unstructured " ;
2747: \ : sys? ( sys -- sys ) dup 0= ?struc ;
2748:
1.52 jwilke 2749: : >mark ( -- sys ) T here ( dup ." M" hex. ) 0 , H ;
2750:
1.78 jwilke 2751: : branchoffset ( src dest -- ) - tchar / ; \ ?? jaw
1.52 jwilke 2752:
1.78 jwilke 2753: : >resolve ( sys -- )
2754: X here ( dup ." >" hex. ) over branchoffset swap X ! ;
1.52 jwilke 2755:
1.78 jwilke 2756: : <resolve ( sys -- )
2757: X here ( dup ." <" hex. ) branchoffset X , ;
1.52 jwilke 2758:
1.78 jwilke 2759: :noname compile branch X here branchoffset X , ;
1.54 pazsan 2760: IS branch, ( target-addr -- )
1.78 jwilke 2761: :noname compile ?branch X here branchoffset X , ;
1.54 pazsan 2762: IS ?branch, ( target-addr -- )
2763: :noname compile branch T here 0 , H ;
2764: IS branchmark, ( -- branchtoken )
2765: :noname compile ?branch T here 0 , H ;
2766: IS ?branchmark, ( -- branchtoken )
2767: :noname T here 0 , H ;
2768: IS ?domark, ( -- branchtoken )
1.78 jwilke 2769: :noname dup X @ ?struc X here over branchoffset swap X ! ;
1.54 pazsan 2770: IS branchtoresolve, ( branchtoken -- )
1.78 jwilke 2771: :noname branchto, X here ;
1.54 pazsan 2772: IS branchtomark, ( -- target-addr )
1.52 jwilke 2773:
2774: >TARGET
2775:
2776: \ Structural Conditionals 12dec92py
2777:
1.103 jwilke 2778: \ CLEANUP Cond: BUT sys? swap ;Cond
2779: \ CLEANUP Cond: YET sys? dup ;Cond
1.52 jwilke 2780:
2781: >CROSS
2782:
1.78 jwilke 2783: Variable tleavings 0 tleavings !
1.52 jwilke 2784:
1.54 pazsan 2785: : (done) ( addr -- )
2786: tleavings @
2787: BEGIN dup
2788: WHILE
2789: >r dup r@ cell+ @ \ address of branch
2790: u> 0= \ lower than DO?
2791: WHILE
2792: r@ 2 cells + @ \ branch token
2793: branchtoresolve,
2794: r@ @ r> free throw
2795: REPEAT r> THEN
2796: tleavings ! drop ;
2797:
1.53 jwilke 2798: >TARGET
2799:
1.103 jwilke 2800: \ What for? ANS? JAW Cond: DONE ( addr -- ) (done) ;Cond
1.53 jwilke 2801:
2802: >CROSS
1.54 pazsan 2803: : (leave) ( branchtoken -- )
1.53 jwilke 2804: 3 cells allocate throw >r
2805: T here H r@ cell+ !
2806: r@ 2 cells + !
2807: tleavings @ r@ !
2808: r> tleavings ! ;
2809: >TARGET
2810:
1.103 jwilke 2811: : (leave,) ( -- )
2812: branchmark, (leave) ; ' (leave,) plugin-of leave,
2813:
2814: : (?leave,) ( -- )
2815: compile 0= ?branchmark, (leave) ; ' (?leave,) plugin-of ?leave,
2816:
2817: Cond: LEAVE leave, ;Cond
2818: Cond: ?LEAVE ?leave, ;Cond
1.53 jwilke 2819:
1.54 pazsan 2820: >CROSS
2821: \ !!JW ToDo : Move to general tools section
2822:
2823: : to1 ( x1 x2 xn n -- addr )
1.103 jwilke 2824: \G packs n stack elements in am allocated memory region
1.54 pazsan 2825: dup dup 1+ cells allocate throw dup >r swap 1+
2826: 0 DO tuck ! cell+ LOOP
2827: drop r> ;
1.103 jwilke 2828:
1.54 pazsan 2829: : 1to ( addr -- x1 x2 xn )
2830: \G unpacks the elements saved by to1
2831: dup @ swap over cells + swap
2832: 0 DO dup @ swap 1 cells - LOOP
2833: free throw ;
2834:
2835: : loop] branchto, dup <resolve tcell - (done) ;
2836:
2837: : skiploop] ?dup IF branchto, branchtoresolve, THEN ;
2838:
2839: >TARGET
2840:
1.52 jwilke 2841: \ Structural Conditionals 12dec92py
2842:
1.103 jwilke 2843: : (cs-swap) ( x1 x2 -- x2 x1 )
2844: swap ; ' (cs-swap) plugin-of cs-swap
2845:
2846: : (ahead,) branchmark, ; ' (ahead,) plugin-of ahead,
2847:
2848: : (if,) ?branchmark, ; ' (if,) plugin-of if,
2849:
2850: : (then,) branchto, branchtoresolve, ; ' (then,) plugin-of then,
2851:
2852: : (else,) ( ahead ) branchmark,
2853: swap
2854: ( then ) branchto, branchtoresolve, ; ' (else,) plugin-of else,
2855:
2856: : (begin,) branchtomark, ; ' (begin,) plugin-of begin,
2857:
2858: : (while,) ( if ) ?branchmark,
2859: swap ; ' (while,) plugin-of while,
2860:
2861: : (again,) branch, ; ' (again,) plugin-of again,
2862:
2863: : (until,) ?branch, ; ' (until,) plugin-of until,
2864:
2865: : (repeat,) ( again ) branch,
2866: ( then ) branchto, branchtoresolve, ; ' (repeat,) plugin-of repeat,
2867:
2868: : (case,) ( -- n )
2869: 0 ; ' (case,) plugin-of case,
2870:
2871: : (of,) ( n -- x1 n )
2872: 1+ >r
2873: compile over compile =
2874: if, compile drop r> ; ' (of,) plugin-of of,
2875:
2876: : (endof,) ( x1 n -- x2 n )
2877: >r 1 ncontrols? else, r> ; ' (endof,) plugin-of endof,
2878:
2879: : (endcase,) ( x1 .. xn n -- )
2880: compile drop 0 ?DO 1 ncontrols? then, LOOP ; ' (endcase,) plugin-of endcase,
2881:
1.53 jwilke 2882: >TARGET
1.103 jwilke 2883: Cond: AHEAD ahead, ;Cond
2884: Cond: IF if, ;Cond
2885: Cond: THEN 1 ncontrols? then, ;Cond
2886: Cond: ENDIF 1 ncontrols? then, ;Cond
2887: Cond: ELSE 1 ncontrols? else, ;Cond
2888:
2889: Cond: BEGIN begin, ;Cond
2890: Cond: WHILE 1 ncontrols? while, ;Cond
2891: Cond: AGAIN 1 ncontrols? again, ;Cond
2892: Cond: UNTIL 1 ncontrols? until, ;Cond
2893: Cond: REPEAT 2 ncontrols? repeat, ;Cond
2894:
2895: Cond: CASE case, ;Cond
2896: Cond: OF of, ;Cond
2897: Cond: ENDOF endof, ;Cond
2898: Cond: ENDCASE endcase, ;Cond
1.1 anton 2899:
2900: \ Structural Conditionals 12dec92py
2901:
1.103 jwilke 2902: : (do,) ( -- target-addr )
2903: \ ?? i think 0 is too much! jaw
1.54 pazsan 2904: 0 compile (do)
1.103 jwilke 2905: branchtomark, 2 to1 ; ' (do,) plugin-of do,
1.54 pazsan 2906:
1.103 jwilke 2907: \ alternative for if no ?do
2908: \ : (do,)
1.54 pazsan 2909: \ compile 2dup compile = compile IF
2910: \ compile 2drop compile ELSE
2911: \ compile (do) branchtomark, 2 to1 ;
2912:
1.103 jwilke 2913: : (?do,) ( -- target-addr )
1.54 pazsan 2914: 0 compile (?do) ?domark, (leave)
1.103 jwilke 2915: branchtomark, 2 to1 ; ' (?do,) plugin-of ?do,
2916:
2917: : (for,) ( -- target-addr )
2918: compile (for) branchtomark, ; ' (for,) plugin-of for,
2919:
2920: : (loop,) ( target-addr -- )
2921: 1to compile (loop) loop]
2922: compile unloop skiploop] ; ' (loop,) plugin-of loop,
2923:
2924: : (+loop,) ( target-addr -- )
2925: 1to compile (+loop) loop]
2926: compile unloop skiploop] ; ' (+loop,) plugin-of +loop,
2927:
2928: : (next,)
2929: compile (next) loop] compile unloop ; ' (next,) plugin-of next,
2930:
2931: Cond: DO do, ;Cond
2932: Cond: ?DO ?do, ;Cond
2933: Cond: FOR for, ;Cond
2934:
2935: Cond: LOOP 1 ncontrols? loop, ;Cond
2936: Cond: +LOOP 1 ncontrols? +loop, ;Cond
2937: Cond: NEXT 1 ncontrols? next, ;Cond
1.52 jwilke 2938:
1.1 anton 2939: \ String words 23feb93py
2940:
1.103 jwilke 2941: : ," [char] " parse ht-string, X align ;
1.1 anton 2942:
1.103 jwilke 2943: Cond: ." compile (.") T ," H ;Cond
2944: Cond: S" compile (S") T ," H ;Cond
2945: Cond: C" compile (C") T ," H ;Cond
2946: Cond: ABORT" compile (ABORT") T ," H ;Cond
1.1 anton 2947:
2948: Cond: IS T ' >body H compile ALiteral compile ! ;Cond
1.66 pazsan 2949: : IS T >address ' >body ! H ;
1.9 pazsan 2950: Cond: TO T ' >body H compile ALiteral compile ! ;Cond
2951: : TO T ' >body ! H ;
1.1 anton 2952:
1.52 jwilke 2953: Cond: defers T ' >body @ compile, H ;Cond
2954:
1.1 anton 2955: \ LINKED ERR" ENV" 2ENV" 18may93jaw
2956:
2957: \ linked list primitive
1.79 jwilke 2958: : linked X here over X @ X A, swap X ! ;
1.52 jwilke 2959: : chained T linked A, H ;
1.1 anton 2960:
2961: : err" s" ErrLink linked" evaluate T , H
1.103 jwilke 2962: [char] " parse ht-string, X align ;
1.1 anton 2963:
2964: : env" [char] " parse s" EnvLink linked" evaluate
1.103 jwilke 2965: ht-string, X align X , ;
1.1 anton 2966:
2967: : 2env" [char] " parse s" EnvLink linked" evaluate
1.103 jwilke 2968: here >r ht-string, X align X , X ,
1.1 anton 2969: r> dup T c@ H 80 and swap T c! H ;
2970:
2971: \ compile must be last 22feb93py
2972:
1.103 jwilke 2973: Cond: [compile] ( -- ) \ name
2974: \g For immediate words, works even if forward reference
2975: bl word gfind 0= ABORT" CROSS: Can't compile"
2976: (gexecute) ;Cond
2977:
2978: Cond: postpone ( -- ) \ name
2979: bl word gfind 0= ABORT" CROSS: Can't compile"
2980: dup >magic @ <fwd> =
2981: ABORT" CROSS: Can't postpone on forward declaration"
2982: dup >magic @ <imm> =
2983: IF (gexecute)
2984: ELSE compile (compile) addr, THEN ;Cond
1.54 pazsan 2985:
1.77 jwilke 2986: \ save-cross 17mar93py
2987:
2988: hex
2989:
2990: >CROSS
2991: Create magic s" Gforth2x" here over allot swap move
2992:
2993: bigendian 1+ \ strangely, in magic big=0, little=1
2994: tcell 1 = 0 and or
2995: tcell 2 = 2 and or
2996: tcell 4 = 4 and or
2997: tcell 8 = 6 and or
2998: tchar 1 = 00 and or
2999: tchar 2 = 28 and or
3000: tchar 4 = 50 and or
3001: tchar 8 = 78 and or
3002: magic 7 + c!
3003:
3004: : save-cross ( "image-name" "binary-name" -- )
3005: bl parse ." Saving to " 2dup type cr
3006: w/o bin create-file throw >r
3007: TNIL IF
1.80 anton 3008: s" #! " r@ write-file throw
3009: bl parse r@ write-file throw
3010: s" --image-file" r@ write-file throw
1.77 jwilke 3011: #lf r@ emit-file throw
3012: r@ dup file-position throw drop 8 mod 8 swap ( file-id limit index )
3013: ?do
3014: bl over emit-file throw
3015: loop
3016: drop
3017: magic 8 r@ write-file throw \ write magic
3018: ELSE
3019: bl parse 2drop
3020: THEN
3021: image @ there
3022: r@ write-file throw \ write image
3023: TNIL IF
3024: bit$ @ there 1- tcell>bit rshift 1+
3025: r@ write-file throw \ write tags
3026: THEN
3027: r> close-file throw ;
3028:
3029: : save-region ( addr len -- )
3030: bl parse w/o bin create-file throw >r
3031: swap >image swap r@ write-file throw
3032: r> close-file throw ;
3033:
1.110 jwilke 3034: \ save-asm-region 29aug01jaw
1.103 jwilke 3035:
3036: Variable name-ptr
3037: Create name-buf 200 chars allot
3038: : init-name-buf name-buf name-ptr ! ;
3039: : nb, name-ptr @ c! 1 chars name-ptr +! ;
3040: : $nb, ( adr len -- ) bounds ?DO I c@ nb, LOOP ;
3041: : @nb name-ptr @ name-buf tuck - ;
3042:
3043: \ stores a usefull string representation of the character
3044: \ in the name buffer
3045: : name-char, ( c -- )
3046: dup 'a 'z 1+ within IF nb, EXIT THEN
3047: dup 'A 'Z 1+ within IF $20 + nb, EXIT THEN
3048: dup '0 '9 1+ within IF nb, EXIT THEN
3049: CASE '+ OF s" _PLUS" $nb, ENDOF
3050: '- OF s" _MINUS" $nb, ENDOF
3051: '* OF s" _STAR" $nb, ENDOF
3052: '/ OF s" _SLASH" $nb, ENDOF
3053: '' OF s" _TICK" $nb, ENDOF
3054: '( OF s" _OPAREN" $nb, ENDOF
3055: ') OF s" _CPAREN" $nb, ENDOF
3056: '[ OF s" _OBRACKET" $nb, ENDOF
3057: '] OF s" _CBRACKET" $nb, ENDOF
3058: '! OF s" _STORE" $nb, ENDOF
3059: '@ OF s" _FETCH" $nb, ENDOF
3060: '> OF s" _GREATER" $nb, ENDOF
3061: '< OF s" _LESS" $nb, ENDOF
3062: '= OF s" _EQUAL" $nb, ENDOF
3063: '# OF s" _HASH" $nb, ENDOF
3064: '? OF s" _QUEST" $nb, ENDOF
3065: ': OF s" _COL" $nb, ENDOF
3066: '; OF s" _SEMICOL" $nb, ENDOF
3067: ', OF s" _COMMA" $nb, ENDOF
3068: '. OF s" _DOT" $nb, ENDOF
3069: '" OF s" _DQUOT" $nb, ENDOF
3070: dup
3071: base @ >r hex s>d <# #s 'X hold '_ hold #> $nb, r> base !
3072: ENDCASE ;
3073:
3074: : label-from-ghostname ( ghost -- addr len )
3075: dup >ghostname init-name-buf 'L nb, bounds
3076: ?DO I c@ name-char, LOOP
3077: \ we add the address to a name to make in unique
3078: \ because one name may appear more then once
3079: \ there are names (e.g. boot) that may be reference from other
3080: \ assembler source files, so we declare them as unique
3081: \ and don't add the address suffix
3082: dup >ghost-flags @ <unique> and 0=
3083: IF s" __" $nb, >link @ base @ >r hex 0 <# #s 'L hold #> r> base ! $nb,
3084: ELSE drop
3085: THEN
3086: @nb ;
3087:
1.111 ! jwilke 3088: \ FIXME why disabled?!
1.103 jwilke 3089: : label-from-ghostnameXX ( ghost -- addr len )
3090: \ same as (label-from-ghostname) but caches generated names
3091: dup >asm-name @ ?dup IF nip count EXIT THEN
3092: \ dup >r (label-from-ghostname) 2dup
3093: align here >r string, align
3094: r> r> >asm-name ! ;
3095:
3096: : primghostdiscover ( xt -- ghost true | xt false )
3097: dup 0= IF false EXIT THEN
3098: >r last-prim-ghost
3099: BEGIN @ dup
3100: WHILE dup >asm-dummyaddr @ r@ =
3101: IF rdrop true EXIT THEN
3102: REPEAT
3103: drop r> false ;
3104:
3105: : gdiscover2 ( xt -- ghost true | xt false )
3106: dup taddr>region 0= IF false EXIT THEN
3107: dup (>regiontype) @ dup 0= IF drop false EXIT THEN
3108: addr-xt-ghost @ dup 0= IF drop false EXIT THEN
3109: nip true ;
3110: \ dup >ghost-name @ IF nip true ELSE drop false THEN ;
3111:
3112: \ generates a label name for the target address
3113: : generate-label-name ( taddr -- addr len )
3114: gdiscover2
3115: IF dup >magic @ <do:> =
3116: IF >asm-name @ count EXIT THEN
3117: label-from-ghostname
3118: ELSE
3119: primghostdiscover
3120: IF >asm-name @ count
3121: ELSE base @ >r hex 0 <# #s 'L hold #> r> base !
3122: THEN
3123: THEN ;
3124:
3125: Variable outfile-fd
3126:
3127: : $out ( adr len -- ) outfile-fd @ write-file throw ;
3128: : nlout newline $out ;
3129: : .ux ( n -- )
3130: base @ hex swap 0 <# #S #> $out base ! ;
3131:
3132: : save-asm-region-part-aligned ( taddr len -- 'taddr 'len )
3133: dup cell/ 0
3134: ?DO nlout s" .word " $out over @relbit
3135: IF over X @ generate-label-name $out
3136: ELSE over X @ s" 0x0" $out .ux
3137: THEN
3138: tcell /string
3139: LOOP ;
3140:
3141: : print-bytes ( taddr len n -- taddr' len' )
3142: over min dup 0>
3143: IF nlout s" .byte " $out 0
3144: ?DO I 0> IF s" , " $out THEN
3145: over X c@ s" 0x0" $out .ux 1 /string
3146: LOOP
3147: THEN ;
3148:
3149: : save-asm-region-part ( addr len -- )
3150: over dup X aligned swap - ?dup
3151: IF print-bytes THEN
3152: save-asm-region-part-aligned
3153: dup dup X aligned swap - ?dup
3154: IF 2 pick @relbit ABORT" relocated field splitted"
3155: print-bytes
3156: THEN
3157: 2drop ;
3158:
3159: : print-label ( taddr -- )
3160: nlout generate-label-name $out s" :" $out ;
3161:
3162: : snl-calc ( taddr taddr2 -- )
3163: tuck over - ;
3164:
3165: : skip-nolables ( taddr -- taddr2 taddr len )
3166: \G skips memory region where no lables are defined
3167: \G starting from taddr+1
3168: \G Labels will be introduced for each reference mark
3169: \G in addr-refs.
3170: \G This word deals with lables at byte addresses as well.
3171: \G The main idea is to have an intro part which
3172: \G skips until the next cell boundary, the middle part
3173: \G which skips whole cells very efficiently and the third
3174: \G part which skips the bytes to the label in a cell
3175: dup 1+ dup (>regiontype)
3176: ( S taddr taddr-realstart type-addr )
3177: dup @ dup IF addr-refs @ THEN
3178: swap >r
3179: over align+ tuck tcell swap - rshift swap 0
3180: DO dup 1 and
3181: IF drop rdrop snl-calc UNLOOP EXIT THEN
3182: 2/ swap 1+ swap
3183: LOOP
3184: drop r> cell+
3185: ( S .. taddr2 type-addr ) dup
3186: BEGIN dup @ dup IF addr-refs @ THEN 0= WHILE cell+ REPEAT
3187: dup >r swap - 1 cells / tcell * + r>
3188: ( S .. taddr2+skiplencells type-addr )
3189: @ addr-refs @ 1 tcell lshift or
3190: BEGIN dup 1 and 0= WHILE swap 1+ swap 2/ REPEAT drop
3191: ( S .. taddr2+skiplencells+skiplenbytes )
3192: snl-calc ;
3193:
3194: : insert-label ( taddr -- )
3195: dup 0= IF drop EXIT THEN
3196: \ ignore everything which points outside our memory regions
3197: \ maybe a primitive pointer or whatever
3198: dup taddr>region 0= IF drop EXIT THEN
3199: dup >r (>regiontype) define-addr-struct addr-refs dup @
3200: r> tcell 1- and 1 swap lshift or swap ! ;
3201:
3202: \ this generates a sorted list of addresses which must be labels
3203: \ it scans therefore a whole region
3204: : generate-label-list-region ( taddr len -- )
3205: BEGIN over @relbit IF over X @ insert-label THEN
3206: tcell /string dup 0<
3207: UNTIL 2drop ;
3208:
3209: : generate-label-list ( -- )
3210: region-link
3211: BEGIN @ dup WHILE
3212: dup 0 >rlink - extent
3213: ?dup IF generate-label-list-region ELSE drop THEN
3214: REPEAT drop ;
3215:
3216: : create-outfile ( addr len -- )
3217: w/o bin create-file throw outfile-fd ! ;
3218:
3219: : close-outfile ( -- )
3220: outfile-fd @ close-file throw ;
3221:
3222: : (save-asm-region) ( region -- )
3223: \ ." label list..."
3224: generate-label-list
3225: \ ." ok!" cr
3226: extent ( S taddr len )
3227: over insert-label
3228: 2dup + dup insert-label >r ( R end-label )
3229: ( S taddr len ) drop
3230: BEGIN
3231: dup print-label
3232: dup r@ <> WHILE
3233: skip-nolables save-asm-region-part
3234: REPEAT drop rdrop ;
3235:
3236: : lineout ( addr len -- )
3237: outfile-fd @ write-line throw ;
3238:
3239: : save-asm-region ( region adr len -- )
3240: create-outfile (save-asm-region) close-outfile ;
3241:
1.54 pazsan 3242: \ \ minimal definitions
3243:
1.77 jwilke 3244: >MINIMAL also minimal
3245:
1.1 anton 3246: \ Usefull words 13feb93py
3247:
3248: : KB 400 * ;
3249:
1.54 pazsan 3250: \ \ [IF] [ELSE] [THEN] ... 14sep97jaw
3251:
3252: \ it is useful to define our own structures and not to rely
1.109 jwilke 3253: \ on the words in the host system
3254: \ The words in the host system might be defined with vocabularies
1.54 pazsan 3255: \ this doesn't work with our self-made compile-loop
3256:
3257: Create parsed 20 chars allot \ store word we parsed
3258:
3259: : upcase
3260: parsed count bounds
3261: ?DO I c@ toupper I c! LOOP ;
3262:
3263: : [ELSE]
3264: 1 BEGIN
3265: BEGIN bl word count dup WHILE
1.77 jwilke 3266: comment? 20 umin parsed place upcase parsed count
1.54 pazsan 3267: 2dup s" [IF]" compare 0= >r
3268: 2dup s" [IFUNDEF]" compare 0= >r
3269: 2dup s" [IFDEF]" compare 0= r> or r> or
3270: IF 2drop 1+
3271: ELSE 2dup s" [ELSE]" compare 0=
3272: IF 2drop 1- dup
3273: IF 1+
3274: THEN
3275: ELSE
3276: 2dup s" [ENDIF]" compare 0= >r
3277: s" [THEN]" compare 0= r> or
3278: IF 1- THEN
3279: THEN
3280: THEN
3281: ?dup 0= ?EXIT
3282: REPEAT
3283: 2drop refill 0=
3284: UNTIL drop ; immediate
3285:
3286: : [THEN] ( -- ) ; immediate
3287:
3288: : [ENDIF] ( -- ) ; immediate
3289:
3290: : [IF] ( flag -- )
3291: 0= IF postpone [ELSE] THEN ; immediate
3292:
3293: Cond: [IF] postpone [IF] ;Cond
3294: Cond: [THEN] postpone [THEN] ;Cond
3295: Cond: [ELSE] postpone [ELSE] ;Cond
3296:
1.1 anton 3297: \ define new [IFDEF] and [IFUNDEF] 20may93jaw
3298:
1.77 jwilke 3299: : defined? tdefined? ;
1.44 pazsan 3300: : needed? needed? ;
3301: : doer? doer? ;
1.1 anton 3302:
1.52 jwilke 3303: \ we want to use IFDEF on compiler directives (e.g. E?) in the source, too
3304:
3305: : directive?
1.77 jwilke 3306: bl word count [ ' target >wordlist ] literal search-wordlist
1.52 jwilke 3307: dup IF nip THEN ;
3308:
3309: : [IFDEF] >in @ directive? swap >in !
1.77 jwilke 3310: 0= IF tdefined? ELSE name 2drop true THEN
1.52 jwilke 3311: postpone [IF] ;
3312:
1.77 jwilke 3313: : [IFUNDEF] tdefined? 0= postpone [IF] ;
1.1 anton 3314:
1.54 pazsan 3315: Cond: [IFDEF] postpone [IFDEF] ;Cond
3316:
3317: Cond: [IFUNDEF] postpone [IFUNDEF] ;Cond
3318:
1.1 anton 3319: \ C: \- \+ Conditional Compiling 09jun93jaw
3320:
1.77 jwilke 3321: : C: >in @ tdefined? 0=
3322: IF >in ! X :
1.1 anton 3323: ELSE drop
3324: BEGIN bl word dup c@
3325: IF count comment? s" ;" compare 0= ?EXIT
3326: ELSE refill 0= ABORT" CROSS: Out of Input while C:"
3327: THEN
3328: AGAIN
3329: THEN ;
3330:
1.74 jwilke 3331: : d? d? ;
3332:
3333: \G doesn't skip line when debug switch is on
3334: : \D D? 0= IF postpone \ THEN ;
1.52 jwilke 3335:
1.48 anton 3336: \G interprets the line if word is not defined
1.77 jwilke 3337: : \- tdefined? IF postpone \ THEN ;
1.48 anton 3338:
3339: \G interprets the line if word is defined
1.77 jwilke 3340: : \+ tdefined? 0= IF postpone \ THEN ;
1.1 anton 3341:
1.48 anton 3342: Cond: \- \- ;Cond
3343: Cond: \+ \+ ;Cond
1.52 jwilke 3344: Cond: \D \D ;Cond
1.48 anton 3345:
3346: : ?? bl word find IF execute ELSE drop 0 THEN ;
3347:
3348: : needed:
3349: \G defines ghost for words that we want to be compiled
1.103 jwilke 3350: BEGIN >in @ bl word c@ WHILE >in ! Ghost drop REPEAT drop ;
1.48 anton 3351:
1.1 anton 3352: \ words that should be in minimal
1.52 jwilke 3353:
3354: create s-buffer 50 chars allot
3355:
1.77 jwilke 3356: bigendian Constant bigendian
1.1 anton 3357:
1.52 jwilke 3358: : here there ;
1.67 jwilke 3359: : equ constant ;
3360: : mark there constant ;
1.54 pazsan 3361:
3362: \ compiler directives
1.52 jwilke 3363: : >ram >ram ;
3364: : >rom >rom ;
3365: : >auto >auto ;
3366: : >tempdp >tempdp ;
3367: : tempdp> tempdp> ;
3368: : const constflag on ;
1.103 jwilke 3369:
3370: : Redefinitions-start
3371: \G Starts a redefinition section. Warnings are disabled and
3372: \G existing ghosts are reused. This is used in the kernel
3373: \G where ( and \ and the like are redefined
3374: twarnings off warnings off reuse-ghosts on ;
3375:
3376: : Redefinitions-end
3377: \G Ends a redefinition section. Warnings are enabled again.
3378: twarnings on warnings on reuse-ghosts off ;
3379:
3380: : warnings name 3 =
3381: IF twarnings off warnings off ELSE twarnings on warnings on THEN drop ;
1.102 jwilke 3382:
1.60 anton 3383: : | ;
3384: \ : | NoHeaderFlag on ; \ This is broken (damages the last word)
1.52 jwilke 3385:
1.48 anton 3386: : save-cross save-cross ;
1.52 jwilke 3387: : save-region save-region ;
3388: : tdump swap >image swap dump ;
3389:
1.48 anton 3390: also forth
1.52 jwilke 3391: [IFDEF] Label : Label defempty? Label ; [THEN]
3392: [IFDEF] start-macros : start-macros defempty? start-macros ; [THEN]
1.77 jwilke 3393: \ [IFDEF] builttag : builttag builttag ; [THEN]
1.48 anton 3394: previous
3395:
1.52 jwilke 3396: : s" [char] " parse s-buffer place s-buffer count ; \ for environment?
1.43 pazsan 3397: : + + ;
1.52 jwilke 3398: : 1+ 1 + ;
3399: : 2+ 2 + ;
1.43 pazsan 3400: : 1- 1- ;
3401: : - - ;
1.52 jwilke 3402: : and and ;
3403: : or or ;
1.43 pazsan 3404: : 2* 2* ;
3405: : * * ;
3406: : / / ;
3407: : dup dup ;
3408: : over over ;
3409: : swap swap ;
3410: : rot rot ;
3411: : drop drop ;
3412: : = = ;
3413: : 0= 0= ;
3414: : lshift lshift ;
3415: : 2/ 2/ ;
1.103 jwilke 3416: \ : . . ;
1.1 anton 3417:
1.79 jwilke 3418: : all-words ['] forced? IS skip? ;
1.43 pazsan 3419: : needed-words ['] needed? IS skip? ;
1.75 jwilke 3420: : undef-words ['] defined2? IS skip? ;
3421: : skipdef skipdef ;
1.1 anton 3422:
1.40 pazsan 3423: : \ postpone \ ; immediate
1.47 pazsan 3424: : \G T-\G ; immediate
1.40 pazsan 3425: : ( postpone ( ; immediate
1.1 anton 3426: : include bl word count included ;
1.103 jwilke 3427: : included swap >image swap included ;
1.52 jwilke 3428: : require require ;
1.103 jwilke 3429: : needs require ;
1.1 anton 3430: : .( [char] ) parse type ;
1.52 jwilke 3431: : ." [char] " parse type ;
1.1 anton 3432: : cr cr ;
3433:
1.77 jwilke 3434: : times 0 ?DO dup X c, LOOP drop ; \ used for space table creation
3435:
3436: \ only forth also cross also minimal definitions order
1.1 anton 3437:
3438: \ cross-compiler words
3439:
1.103 jwilke 3440: : decimal decimal [g'] decimal >exec2 @ ?dup IF EXECUTE THEN ;
3441: : hex hex [g'] hex >exec2 @ ?dup IF EXECUTE THEN ;
1.1 anton 3442:
1.77 jwilke 3443: \ : tudp X tudp ;
3444: \ : tup X tup ;
3445:
3446: : doc-off false to-doc ! ;
3447: : doc-on true to-doc ! ;
1.39 pazsan 3448:
1.103 jwilke 3449: : declareunique ( "name" -- )
3450: \G Sets the unique flag for a ghost. The assembler output
3451: \G generates labels with the ghostname concatenated with the address
3452: \G while cross-compiling. The address is concatenated
3453: \G because we have double occurences of the same name.
3454: \G If we want to reference the labels from the assembler or C
3455: \G code we declare them unique, so the address is skipped.
3456: Ghost >ghost-flags dup @ <unique> or swap ! ;
3457:
3458: \ [IFDEF] dbg : dbg dbg ; [THEN]
1.39 pazsan 3459:
1.1 anton 3460: \ for debugging...
1.103 jwilke 3461: \ : dbg dbg ;
3462: : horder order ;
3463: : hwords words ;
3464: \ : words also ghosts
3465: \ words previous ;
1.105 jwilke 3466: : .s .s ;
1.1 anton 3467: : bye bye ;
1.99 pazsan 3468:
1.103 jwilke 3469: \ dummy
3470: : group 0 word drop ;
3471:
1.1 anton 3472: \ turnkey direction
3473: : H forth ; immediate
3474: : T minimal ; immediate
3475: : G ghosts ; immediate
3476:
3477:
3478: \ these ones are pefered:
3479:
1.74 jwilke 3480: : unlock previous forth also cross ;
1.52 jwilke 3481:
1.77 jwilke 3482: \ also minimal
1.103 jwilke 3483: >cross
3484:
3485: : turnkey
3486: ghosts-wordlist 1 set-order
3487: also target definitions
3488: also Minimal also ;
3489:
3490: >minimal
3491:
3492: : [[+++
3493: turnkey unlock ;
1.1 anton 3494:
3495: unlock definitions also minimal
1.77 jwilke 3496:
1.103 jwilke 3497: : lock turnkey ;
3498:
3499: Defer +++]]-hook
3500: : +++]] +++]]-hook lock ;
3501:
3502: LOCK
1.77 jwilke 3503: \ load cross compiler extension defined in mach file
3504:
3505: UNLOCK >CROSS
3506:
3507: [IFDEF] extend-cross extend-cross [THEN]
3508:
3509: LOCK
1.103 jwilke 3510:
3511:
3512:
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