Annotation of gforth/cross.fs, revision 1.106
1.1 anton 1: \ CROSS.FS The Cross-Compiler 06oct92py
2: \ Idea and implementation: Bernd Paysan (py)
1.30 anton 3:
1.86 anton 4: \ Copyright (C) 1995,1996,1997,1998,1999,2000 Free Software Foundation, Inc.
1.30 anton 5:
6: \ This file is part of Gforth.
7:
8: \ Gforth is free software; you can redistribute it and/or
9: \ modify it under the terms of the GNU General Public License
10: \ as published by the Free Software Foundation; either version 2
11: \ of the License, or (at your option) any later version.
12:
13: \ This program is distributed in the hope that it will be useful,
14: \ but WITHOUT ANY WARRANTY; without even the implied warranty of
15: \ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16: \ GNU General Public License for more details.
17:
18: \ You should have received a copy of the GNU General Public License
19: \ along with this program; if not, write to the Free Software
1.87 anton 20: \ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
1.1 anton 21:
1.67 jwilke 22: 0
23: [IF]
24:
25: ToDo:
26: Crossdoc destination ./doc/crossdoc.fd makes no sense when
27: cross.fs is uses seperately. jaw
28: Do we need this char translation with >address and in branchoffset?
29: (>body also affected) jaw
30: Clean up mark> and >resolve stuff jaw
31:
32: [THEN]
1.48 anton 33:
1.77 jwilke 34: hex
35:
36: \ debugging for compiling
37:
38: \ print stack at each colon definition
39: \ : : save-input cr bl word count type restore-input throw .s : ;
40:
41: \ print stack at each created word
42: \ : create save-input cr bl word count type restore-input throw .s create ;
43:
44:
45: \ \ ------------- Setup Vocabularies
46:
47: \ Remark: Vocabulary is not ANS, but it should work...
48:
49: Vocabulary Cross
50: Vocabulary Target
51: Vocabulary Ghosts
52: Vocabulary Minimal
53: only Forth also Target also also
54: definitions Forth
55:
1.78 jwilke 56: : T previous Ghosts also Target ; immediate
1.77 jwilke 57: : G Ghosts ; immediate
58: : H previous Forth also Cross ; immediate
59:
60: forth definitions
61:
1.78 jwilke 62: : T previous Ghosts also Target ; immediate
1.77 jwilke 63: : G Ghosts ; immediate
64:
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:
693: Plugin lit, ( n -- )
694: Plugin alit, ( n -- )
695:
696: Plugin branch, ( target-addr -- ) \ compiles a branch
697: Plugin ?branch, ( target-addr -- ) \ compiles a ?branch
698: Plugin branchmark, ( -- branch-addr ) \ reserves room for a branch
699: Plugin ?branchmark, ( -- branch-addr ) \ reserves room for a ?branch
700: Plugin ?domark, ( -- branch-addr ) \ reserves room for a ?do branch
701: Plugin branchto, ( -- ) \ actual program position is target of a branch (do e.g. alignment)
702: ' NOOP plugin-of branchto,
703: Plugin branchtoresolve, ( branch-addr -- ) \ resolves a forward reference from branchmark
704: Plugin branchtomark, ( -- target-addr ) \ marks a branch destination
705:
706: Plugin colon, ( tcfa -- ) \ compiles call to tcfa at current position
707: Plugin prim, ( tcfa -- ) \ compiles primitive invocation
708: Plugin colonmark, ( -- addr ) \ marks a colon call
709: Plugin colon-resolve ( tcfa addr -- )
710:
711: Plugin addr-resolve ( target-addr addr -- )
712: Plugin doer-resolve ( ghost res-pnt target-addr addr -- ghost res-pnt )
713:
714: Plugin ncontrols? ( [ xn ... x1 ] n -- ) \ checks wheter n control structures are open
715: Plugin if, ( -- if-token )
716: Plugin else, ( if-token -- if-token )
717: Plugin then, ( if-token -- )
718: Plugin ahead,
719: Plugin begin,
720: Plugin while,
721: Plugin until,
722: Plugin again,
723: Plugin repeat,
724: Plugin cs-swap ( x1 x2 -- x2 x1 )
725:
726: Plugin case, ( -- n )
727: Plugin of, ( n -- x1 n )
728: Plugin endof, ( x1 n -- x2 n )
729: Plugin endcase, ( x1 .. xn n -- )
730:
731: Plugin do, ( -- do-token )
732: Plugin ?do, ( -- ?do-token )
733: Plugin for, ( -- for-token )
734: Plugin loop, ( do-token / ?do-token -- )
735: Plugin +loop, ( do-token / ?do-token -- )
736: Plugin next, ( for-token )
737: Plugin leave, ( -- )
738: Plugin ?leave, ( -- )
739:
740: [IFUNDEF] ca>native
741: Plugin ca>native
742: [THEN]
743:
744: Plugin doprim, \ compiles start of a primitive
745: Plugin docol, \ compiles start of a colon definition
746: Plugin doer,
747: Plugin fini, \ compiles end of definition ;s
748: Plugin doeshandler,
749: Plugin dodoes,
750:
751: Plugin colon-start
752: ' noop plugin-of colon-start
753: Plugin colon-end
754: ' noop plugin-of colon-end
755:
756: Plugin ]comp \ starts compilation
757: ' noop plugin-of ]comp
758: Plugin comp[ \ ends compilation
759: ' noop plugin-of comp[
760:
761: Plugin t>body \ we need the system >body
762: \ and the target >body
763:
764: >TARGET
765: : >body t>body ;
766:
767:
1.103 jwilke 768: \ Ghost Builder 06oct92py
769:
1.105 jwilke 770: >CROSS
1.103 jwilke 771: hex
1.105 jwilke 772: \ Values for ghost magic
1.103 jwilke 773: 4711 Constant <fwd> 4712 Constant <res>
774: 4713 Constant <imm> 4714 Constant <do:>
775: 4715 Constant <skip>
776:
1.105 jwilke 777: \ Bitmask for ghost flags
1.103 jwilke 778: 1 Constant <unique>
1.105 jwilke 779: 2 Constant <primitive>
780:
781: \ FXIME: move this to general stuff?
782: : set-flag ( addr flag -- )
783: over @ or swap ! ;
784:
785: : reset-flag ( addr flag -- )
786: invert over @ and swap ! ;
787:
788: : get-flag ( addr flag -- f )
789: swap @ and 0<> ;
790:
1.103 jwilke 791:
792: Struct
1.52 jwilke 793:
1.103 jwilke 794: \ link to next ghost (always the first element)
795: cell% field >next-ghost
1.52 jwilke 796:
1.103 jwilke 797: \ type of ghost
798: cell% field >magic
799:
800: \ pointer where ghost is in target, or if unresolved
801: \ points to the where we have to resolve (linked-list)
802: cell% field >link
1.52 jwilke 803:
1.106 ! jwilke 804: \ execution semantics (while target compiling) of ghost
1.103 jwilke 805: cell% field >exec
1.52 jwilke 806:
1.106 ! jwilke 807: \ compilation action of this ghost; this is what is
! 808: \ done to compile a call (or whatever) to this definition.
! 809: \ E.g. >comp contains the semantic of postpone s"
! 810: \ whereas >exec-compile contains the semantic of s"
1.105 jwilke 811: cell% field >comp
812:
1.106 ! jwilke 813: \ Compilation sematics (while parsing) of this ghost. E.g.
! 814: \ "\" will skip the rest of line.
! 815: \ These semantics are defined by Cond: and
! 816: \ if a word is made immediate in instant, then the >exec2 field
! 817: \ gets copied to here
1.103 jwilke 818: cell% field >exec-compile
1.52 jwilke 819:
1.106 ! jwilke 820: \ Additional execution semantics of this ghost. This is used
! 821: \ for code generated by instant and for the doer-xt of created
! 822: \ words
1.103 jwilke 823: cell% field >exec2
1.52 jwilke 824:
1.103 jwilke 825: cell% field >created
1.52 jwilke 826:
1.103 jwilke 827: \ the xt of the created ghost word itself
828: cell% field >ghost-xt
1.52 jwilke 829:
1.103 jwilke 830: \ pointer to the counted string of the assiciated
831: \ assembler label
832: cell% field >asm-name
1.52 jwilke 833:
1.103 jwilke 834: \ mapped primitives have a special address, so
835: \ we are able to detect them
836: cell% field >asm-dummyaddr
837:
838: \ for builder (create, variable...) words
839: \ the execution symantics of words built are placed here
840: \ this is a doer ghost or a dummy ghost
841: cell% field >do:ghost
1.93 pazsan 842:
1.103 jwilke 843: cell% field >ghost-flags
1.93 pazsan 844:
1.103 jwilke 845: cell% field >ghost-name
1.52 jwilke 846:
1.103 jwilke 847: End-Struct ghost-struct
1.52 jwilke 848:
1.103 jwilke 849: Variable ghost-list
850: 0 ghost-list !
1.52 jwilke 851:
852: Variable executed-ghost \ last executed ghost, needed in tcreate and gdoes>
1.103 jwilke 853: \ Variable last-ghost \ last ghost that is created
1.52 jwilke 854: Variable last-header-ghost \ last ghost definitions with header
855:
1.103 jwilke 856: \ space for ghosts resolve structure
857: \ we create ghosts in a sepearte space
858: \ and not to the current host dp, because this
859: \ gives trouble with instant while compiling and creating
860: \ a ghost for a forward reference
861: \ BTW: we cannot allocate another memory region
862: \ because allot will check the overflow!!
863: Variable cross-space-dp
864: Create cross-space 250000 allot here 100 allot align
865: Constant cross-space-end
866: cross-space cross-space-dp !
867: Variable cross-space-dp-orig
868:
869: : cross-space-used cross-space-dp @ cross-space - ;
870:
871: : >space ( -- )
872: dp @ cross-space-dp-orig !
873: cross-space-dp @ dp ! ;
874:
875: : space> ( -- )
876: dp @ dup cross-space-dp !
877: cross-space-end u> ABORT" CROSS: cross-space overflow"
878: cross-space-dp-orig @ dp ! ;
879:
1.106 ! jwilke 880: \ this is just for debugging, to see this in the backtrace
1.103 jwilke 881: : execute-exec execute ;
882: : execute-exec2 execute ;
883: : execute-exec-compile execute ;
884:
885: : NoExec
886: executed-ghost @ >exec2 @
887: ?dup
888: IF execute-exec2
889: ELSE true ABORT" CROSS: Don't execute ghost, or immediate target word"
890: THEN ;
891:
1.105 jwilke 892: Defer is-forward
893:
1.103 jwilke 894: : (ghostheader) ( -- )
1.105 jwilke 895: ghost-list linked <fwd> , 0 , ['] NoExec , ['] is-forward ,
896: 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , ;
1.103 jwilke 897:
898: : ghostheader ( -- ) (ghostheader) 0 , ;
899:
900: ' Ghosts >wordlist Constant ghosts-wordlist
901:
902: \ the current wordlist for ghost definitions in the host
903: ghosts-wordlist Value current-ghosts
904:
1.52 jwilke 905: : Make-Ghost ( "name" -- ghost )
1.103 jwilke 906: >space
907: \ save current and create in ghost vocabulary
908: get-current >r current-ghosts set-current
909: >in @ Create >in !
910: \ some forth systems like iForth need the immediate directly
911: \ after the word is created
912: \ restore current
913: r> set-current
914: here (ghostheader)
915: bl word count string, align
916: space>
917: \ set ghost-xt field by doing a search
918: dup >ghost-name count
919: current-ghosts search-wordlist
920: 0= ABORT" CROSS: Just created, must be there!"
921: over >ghost-xt !
922: DOES>
923: dup executed-ghost !
924: >exec @ execute-exec ;
1.52 jwilke 925:
926: \ ghost words 14oct92py
927: \ changed: 10may93py/jaw
928:
1.103 jwilke 929: Defer search-ghosts
930:
931: : (search-ghosts) ( adr len -- cfa true | 0 )
932: current-ghosts search-wordlist ;
933:
934: ' (search-ghosts) IS search-ghosts
935:
936: : gsearch ( addr len -- ghost true | 0 )
937: search-ghosts
938: dup IF swap >body swap THEN ;
939:
940: : gfind ( string -- ghost true / string false )
1.52 jwilke 941: \ searches for string in word-list ghosts
1.103 jwilke 942: \ dup count type space
943: dup >r count gsearch
944: dup IF rdrop ELSE r> swap THEN ;
1.52 jwilke 945:
946: : gdiscover ( xt -- ghost true | xt false )
1.103 jwilke 947: >r ghost-list
1.52 jwilke 948: BEGIN @ dup
1.103 jwilke 949: WHILE dup >magic @ <fwd> <>
950: IF dup >link @ r@ =
951: IF rdrop true EXIT THEN
952: THEN
1.52 jwilke 953: REPEAT
1.103 jwilke 954: drop r> false ;
1.52 jwilke 955:
1.105 jwilke 956: : xt>ghost ( xt -- ghost )
957: gdiscover 0= ABORT" CROSS: ghost not found for this xt" ;
958:
1.103 jwilke 959: : Ghost ( "name" -- ghost )
960: >in @ bl word gfind IF nip EXIT THEN
1.52 jwilke 961: drop >in ! Make-Ghost ;
962:
963: : >ghostname ( ghost -- adr len )
1.103 jwilke 964: >ghost-name count ;
965:
966: : forward? ( ghost -- flag )
967: >magic @ <fwd> = ;
968:
969: : undefined? ( ghost -- flag )
970: >magic @ dup <fwd> = swap <skip> = or ;
971:
972: : immediate? ( ghost -- flag )
973: >magic @ <imm> = ;
974:
975: Variable TWarnings
976: TWarnings on
977: Variable Exists-Warnings
978: Exists-Warnings on
979:
980: : exists-warning ( ghost -- ghost )
981: TWarnings @ Exists-Warnings @ and
982: IF dup >ghostname warnhead type ." exists " THEN ;
983:
984: \ : HeaderGhost Ghost ;
985:
986: Variable reuse-ghosts reuse-ghosts off
987:
988: 1 [IF] \ FIXME: define when vocs are ready
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: [THEN]
1.52 jwilke 1006:
1.103 jwilke 1007:
1.78 jwilke 1008: : .ghost ( ghost -- ) >ghostname type ;
1009:
1.77 jwilke 1010: \ ' >ghostname ALIAS @name
1.52 jwilke 1011:
1.103 jwilke 1012: : [G'] ( -- ghost : name )
1013: \G ticks a ghost and returns its address
1014: \ bl word gfind 0= ABORT" CROSS: Ghost don't exists"
1015: ghost state @ IF postpone literal THEN ; immediate
1016:
1.105 jwilke 1017: : g>xt ( ghost -- xt )
1018: \G Returns the xt (cfa) of a ghost. Issues a warning if undefined.
1.103 jwilke 1019: dup undefined? ABORT" CROSS: forward " >link @ ;
1020:
1.105 jwilke 1021: : g>body ( ghost -- body )
1022: \G Returns the body-address (pfa) of a ghost.
1023: \G Issues a warning if undefined (a forward-reference).
1024: g>xt X >body ;
1025:
1.103 jwilke 1026: 1 Constant <label>
1.52 jwilke 1027:
1.103 jwilke 1028: Struct
1029: \ bitmask of address type (not used for now)
1030: cell% field addr-type
1031: \ if this address is an xt, this field points to the ghost
1032: cell% field addr-xt-ghost
1033: \ a bit mask that tells as what part of the cell
1034: \ is refenced from an address pointer, used for assembler generation
1035: cell% field addr-refs
1036: End-Struct addr-struct
1037:
1038: : %allocerase ( align size -- addr )
1039: dup >r %alloc dup r> erase ;
1040:
1041: \ returns the addr struct, define it if 0 reference
1042: : define-addr-struct ( addr -- struct-addr )
1043: dup @ ?dup IF nip EXIT THEN
1044: addr-struct %allocerase tuck swap ! ;
1.75 jwilke 1045:
1.52 jwilke 1046: \ Predefined ghosts 12dec92py
1047:
1.103 jwilke 1048: Ghost 0= drop
1049: Ghost branch Ghost ?branch 2drop
1050: Ghost (do) Ghost (?do) 2drop
1051: Ghost (for) drop
1052: Ghost (loop) Ghost (+loop) 2drop
1053: Ghost (next) drop
1054: Ghost unloop Ghost ;S 2drop
1055: Ghost lit Ghost (compile) Ghost ! 2drop drop
1056: Ghost (does>) Ghost noop 2drop
1057: Ghost (.") Ghost (S") Ghost (ABORT") 2drop drop
1058: Ghost ' drop
1059: Ghost :docol Ghost :doesjump Ghost :dodoes 2drop drop
1060: Ghost :dovar drop
1061: Ghost over Ghost = Ghost drop 2drop drop
1062: Ghost - drop
1063: Ghost 2drop drop
1064: Ghost 2dup drop
1065:
1066:
1.52 jwilke 1067:
1068: \ \ Parameter for target systems 06oct92py
1069:
1.103 jwilke 1070:
1071: >cross
1.52 jwilke 1072: \ we define it ans like...
1073: wordlist Constant target-environment
1074:
1.103 jwilke 1075: \ save information of current dictionary to restore with environ>
1076: Variable env-current
1.52 jwilke 1077:
1078: : >ENVIRON get-current env-current ! target-environment set-current ;
1079: : ENVIRON> env-current @ set-current ;
1.43 pazsan 1080:
1.48 anton 1081: >TARGET
1.43 pazsan 1082:
1.103 jwilke 1083: : environment? ( addr len -- [ x ] true | false )
1084: \G returns the content of environment variable and true or
1085: \G false if not present
1086: target-environment search-wordlist
1087: IF EXECUTE true ELSE false THEN ;
1088:
1089: : $has? ( addr len -- x | false )
1090: \G returns the content of environment variable
1091: \G or false if not present
1092: T environment? H dup IF drop THEN ;
1093:
1094: : e? ( "name" -- x )
1095: \G returns the content of environment variable.
1096: \G The variable is expected to exist. If not, issue an error.
1097: bl word count T environment? H
1098: 0= ABORT" environment variable not defined!" ;
1099:
1100: : has? ( "name" --- x | false )
1101: \G returns the content of environment variable
1102: \G or false if not present
1103: bl word count T $has? H ;
1.52 jwilke 1104:
1.48 anton 1105:
1.54 pazsan 1106: >ENVIRON get-order get-current swap 1+ set-order
1107: true SetValue compiler
1.83 pazsan 1108: true SetValue cross
1.54 pazsan 1109: true SetValue standard-threading
1110: >TARGET previous
1.52 jwilke 1111:
1.77 jwilke 1112: 0
1.103 jwilke 1113: [IFDEF] mach-file drop mach-file count 1 [THEN]
1114: [IFDEF] machine-file drop machine-file 1 [THEN]
1115: [IF] included hex
1.77 jwilke 1116: [ELSE] cr ." No machine description!" ABORT
1117: [THEN]
1.43 pazsan 1118:
1.53 jwilke 1119: >ENVIRON
1120:
1.54 pazsan 1121: T has? ec H
1122: [IF]
1123: false DefaultValue relocate
1124: false DefaultValue file
1125: false DefaultValue OS
1126: false DefaultValue prims
1127: false DefaultValue floating
1128: false DefaultValue glocals
1129: false DefaultValue dcomps
1130: false DefaultValue hash
1131: false DefaultValue xconds
1132: false DefaultValue header
1.105 jwilke 1133: false DefaultValue backtrace
1134: false DefaultValue new-input
1135: false DefaultValue peephole
1.54 pazsan 1136: [THEN]
1137:
1138: true DefaultValue interpreter
1139: true DefaultValue ITC
1140: false DefaultValue rom
1.73 jwilke 1141: true DefaultValue standardthreading
1.53 jwilke 1142:
1.52 jwilke 1143: >TARGET
1.53 jwilke 1144: s" relocate" T environment? H
1.103 jwilke 1145: \ JAW why set NIL to this?!
1146: [IF] drop \ SetValue NIL
1.53 jwilke 1147: [ELSE] >ENVIRON T NIL H SetValue relocate
1148: [THEN]
1.43 pazsan 1149:
1150: >CROSS
1151:
1.52 jwilke 1152: \ \ Create additional parameters 19jan95py
1.19 pazsan 1153:
1.71 jwilke 1154: \ currently cross only works for host machines with address-unit-bits
1155: \ eual to 8 because of s! and sc!
1156: \ but I start to query the environment just to modularize a little bit
1157:
1158: : check-address-unit-bits ( -- )
1159: \ s" ADDRESS-UNIT-BITS" environment?
1160: \ IF 8 <> ELSE true THEN
1161: \ ABORT" ADDRESS-UNIT-BITS unknown or not equal to 8!"
1162:
1163: \ shit, this doesn't work because environment? is only defined for
1164: \ gforth.fi and not kernl???.fi
1165: ;
1166:
1167: check-address-unit-bits
1168: 8 Constant bits/byte \ we define: byte is address-unit
1169:
1170: 1 bits/byte lshift Constant maxbyte
1.77 jwilke 1171: \ this sets byte size for the target machine, (probably right guess) jaw
1.67 jwilke 1172:
1.19 pazsan 1173: T
1.71 jwilke 1174: NIL Constant TNIL
1175: cell Constant tcell
1176: cell<< Constant tcell<<
1177: cell>bit Constant tcell>bit
1178: bits/char Constant tbits/char
1179: bits/char H bits/byte T /
1180: Constant tchar
1181: float Constant tfloat
1182: 1 bits/char lshift Constant tmaxchar
1183: [IFUNDEF] bits/byte
1184: 8 Constant tbits/byte
1185: [ELSE]
1186: bits/byte Constant tbits/byte
1187: [THEN]
1.19 pazsan 1188: H
1.81 pazsan 1189: tbits/char bits/byte / Constant tbyte
1.71 jwilke 1190:
1.19 pazsan 1191:
1.48 anton 1192: \ Variables 06oct92py
1193:
1194: Variable image
1195: Variable tlast TNIL tlast ! \ Last name field
1196: Variable tlastcfa \ Last code field
1197: Variable bit$
1.52 jwilke 1198:
1199: \ statistics 10jun97jaw
1200:
1201: Variable headers-named 0 headers-named !
1202: Variable user-vars 0 user-vars !
1203:
1.67 jwilke 1204: : target>bitmask-size ( u1 -- u2 )
1205: 1- tcell>bit rshift 1+ ;
1206:
1.105 jwilke 1207: : allocatetarget ( size -- adr )
1.67 jwilke 1208: dup allocate ABORT" CROSS: No memory for target"
1209: swap over swap erase ;
1.52 jwilke 1210:
1.54 pazsan 1211: \ \ memregion.fs
1.52 jwilke 1212:
1213:
1214: Variable last-defined-region \ pointer to last defined region
1215: Variable region-link \ linked list with all regions
1216: Variable mirrored-link \ linked list for mirrored regions
1217: 0 dup mirrored-link ! region-link !
1218:
1219:
1.103 jwilke 1220: : >rname 7 cells + ;
1221: : >rbm 4 cells + ;
1222: : >rmem 5 cells + ;
1223: : >rtype 6 cells + ;
1.67 jwilke 1224: : >rlink 3 cells + ;
1.52 jwilke 1225: : >rdp 2 cells + ;
1226: : >rlen cell+ ;
1227: : >rstart ;
1228:
1229:
1.103 jwilke 1230: : region ( addr len -- )
1231: \G create a new region
1.52 jwilke 1232: \ check whether predefined region exists
1233: save-input bl word find >r >r restore-input throw r> r> 0=
1234: IF \ make region
1235: drop
1236: save-input create restore-input throw
1237: here last-defined-region !
1238: over ( startaddr ) , ( length ) , ( dp ) ,
1.103 jwilke 1239: region-link linked 0 , 0 , 0 , bl word count string,
1.52 jwilke 1240: ELSE \ store new parameters in region
1241: bl word drop
1242: >body >r r@ last-defined-region !
1.67 jwilke 1243: r@ >rlen ! dup r@ >rstart ! r> >rdp !
1.52 jwilke 1244: THEN ;
1245:
1.103 jwilke 1246: : borders ( region -- startaddr endaddr )
1247: \G returns lower and upper region border
1.67 jwilke 1248: dup >rstart @ swap >rlen @ over + ;
1.52 jwilke 1249:
1.103 jwilke 1250: : extent ( region -- startaddr len )
1251: \G returns the really used area
1.67 jwilke 1252: dup >rstart @ swap >rdp @ over - ;
1.52 jwilke 1253:
1.103 jwilke 1254: : area ( region -- startaddr totallen )
1255: \G returns the total area
1.79 jwilke 1256: dup >rstart @ swap >rlen @ ;
1.52 jwilke 1257:
1.103 jwilke 1258: : mirrored
1259: \G mark a region as mirrored
1.52 jwilke 1260: mirrored-link
1.68 jwilke 1261: align linked last-defined-region @ , ;
1.52 jwilke 1262:
1.67 jwilke 1263: : .addr ( u -- )
1264: \G prints a 16 or 32 Bit nice hex value
1.52 jwilke 1265: base @ >r hex
1266: tcell 2 u>
1.77 jwilke 1267: IF s>d <# # # # # [char] . hold # # # # #> type
1.52 jwilke 1268: ELSE s>d <# # # # # # #> type
1.103 jwilke 1269: THEN r> base ! space ;
1.52 jwilke 1270:
1271: : .regions \G display region statistic
1272:
1273: \ we want to list the regions in the right order
1274: \ so first collect all regions on stack
1275: 0 region-link @
1276: BEGIN dup WHILE dup @ REPEAT drop
1277: BEGIN dup
1.67 jwilke 1278: WHILE cr
1279: 0 >rlink - >r
1280: r@ >rname count tuck type
1.52 jwilke 1281: 12 swap - 0 max spaces space
1.67 jwilke 1282: ." Start: " r@ >rstart @ dup .addr space
1283: ." End: " r@ >rlen @ + .addr space
1284: ." DP: " r> >rdp @ .addr
1.52 jwilke 1285: REPEAT drop
1.53 jwilke 1286: s" rom" T $has? H 0= ?EXIT
1.52 jwilke 1287: cr ." Mirrored:"
1288: mirrored-link @
1289: BEGIN dup
1.67 jwilke 1290: WHILE space dup cell+ @ >rname count type @
1.52 jwilke 1291: REPEAT drop cr
1292: ;
1293:
1294: \ -------- predefined regions
1295:
1296: 0 0 region address-space
1297: \ total memory addressed and used by the target system
1298:
1299: 0 0 region dictionary
1300: \ rom area for the compiler
1301:
1.53 jwilke 1302: T has? rom H
1.52 jwilke 1303: [IF]
1304: 0 0 region ram-dictionary mirrored
1305: \ ram area for the compiler
1306: [ELSE]
1307: ' dictionary ALIAS ram-dictionary
1308: [THEN]
1309:
1310: 0 0 region return-stack
1311:
1312: 0 0 region data-stack
1313:
1314: 0 0 region tib-region
1315:
1316: ' dictionary ALIAS rom-dictionary
1317:
1318:
1.105 jwilke 1319: : setup-target ( -- ) \G initialize target's memory space
1.53 jwilke 1320: s" rom" T $has? H
1.52 jwilke 1321: IF \ check for ram and rom...
1.72 jwilke 1322: \ address-space area nip 0<>
1.67 jwilke 1323: ram-dictionary area nip 0<>
1324: rom-dictionary area nip 0<>
1.72 jwilke 1325: and 0=
1.52 jwilke 1326: ABORT" CROSS: define address-space, rom- , ram-dictionary, with rom-support!"
1327: THEN
1328: address-space area nip
1329: IF
1330: address-space area
1331: ELSE
1332: dictionary area
1333: THEN
1.67 jwilke 1334: nip 0=
1.52 jwilke 1335: ABORT" CROSS: define at least address-space or dictionary!!"
1.67 jwilke 1336:
1337: \ allocate target for each region
1338: region-link
1339: BEGIN @ dup
1340: WHILE dup
1341: 0 >rlink - >r
1342: r@ >rlen @
1343: IF \ allocate mem
1.103 jwilke 1344: r@ >rlen @ allocatetarget dup image !
1.67 jwilke 1345: r@ >rmem !
1346:
1.103 jwilke 1347: r@ >rlen @
1.67 jwilke 1348: target>bitmask-size allocatetarget
1.72 jwilke 1349: dup bit$ !
1.103 jwilke 1350: r@ >rbm !
1.67 jwilke 1351:
1.103 jwilke 1352: r@ >rlen @
1353: tcell / 1+ cells allocatetarget r@ >rtype !
1354:
1355: rdrop
1.67 jwilke 1356: ELSE r> drop THEN
1.72 jwilke 1357: REPEAT drop ;
1358:
1.105 jwilke 1359: \ MakeKernel 22feb99jaw
1.72 jwilke 1360:
1361: : makekernel ( targetsize -- targetsize )
1362: dup dictionary >rlen ! setup-target ;
1363:
1364: >MINIMAL
1365: : makekernel makekernel ;
1366: >CROSS
1.52 jwilke 1367:
1.54 pazsan 1368: \ \ switched tdp for rom support 03jun97jaw
1.52 jwilke 1369:
1370: \ second value is here to store some maximal value for statistics
1371: \ tempdp is also embedded here but has nothing to do with rom support
1372: \ (needs switched dp)
1373:
1374: variable tempdp 0 , \ temporary dp for resolving
1375: variable tempdp-save
1376:
1377: 0 [IF]
1378: variable romdp 0 , \ Dictionary-Pointer for ramarea
1379: variable ramdp 0 , \ Dictionary-Pointer for romarea
1380:
1381: \
1382: variable sramdp \ start of ram-area for forth
1383: variable sromdp \ start of rom-area for forth
1384:
1385: [THEN]
1386:
1387:
1388: 0 value tdp
1389: variable fixed \ flag: true: no automatic switching
1390: \ false: switching is done automatically
1391:
1392: \ Switch-Policy:
1393: \
1394: \ a header is always compiled into rom
1395: \ after a created word (create and variable) compilation goes to ram
1396: \
1397: \ Be careful: If you want to make the data behind create into rom
1398: \ you have to put >rom before create!
1399:
1400: variable constflag constflag off
1401:
1.67 jwilke 1402: : activate ( region -- )
1403: \G next code goes to this region
1404: >rdp to tdp ;
1405:
1.52 jwilke 1406: : (switchram)
1.53 jwilke 1407: fixed @ ?EXIT s" rom" T $has? H 0= ?EXIT
1.67 jwilke 1408: ram-dictionary activate ;
1.52 jwilke 1409:
1410: : switchram
1411: constflag @
1412: IF constflag off ELSE (switchram) THEN ;
1413:
1414: : switchrom
1.67 jwilke 1415: fixed @ ?EXIT rom-dictionary activate ;
1.52 jwilke 1416:
1417: : >tempdp ( addr -- )
1418: tdp tempdp-save ! tempdp to tdp tdp ! ;
1419: : tempdp> ( -- )
1420: tempdp-save @ to tdp ;
1421:
1422: : >ram fixed off (switchram) fixed on ;
1423: : >rom fixed off switchrom fixed on ;
1424: : >auto fixed off switchrom ;
1425:
1426:
1427:
1428: \ : romstart dup sromdp ! romdp ! ;
1429: \ : ramstart dup sramdp ! ramdp ! ;
1430:
1.67 jwilke 1431: \ default compilation goes to rom
1.52 jwilke 1432: \ when romable support is off, only the rom switch is used (!!)
1433: >auto
1434:
1.48 anton 1435: : there tdp @ ;
1436:
1.52 jwilke 1437: >TARGET
1.48 anton 1438:
1.52 jwilke 1439: \ \ Target Memory Handling
1.1 anton 1440:
1441: \ Byte ordering and cell size 06oct92py
1442:
1.19 pazsan 1443: : cell+ tcell + ;
1444: : cells tcell<< lshift ;
1.71 jwilke 1445: : chars tchar * ;
1446: : char+ tchar + ;
1.19 pazsan 1447: : floats tfloat * ;
1.6 anton 1448:
1.1 anton 1449: >CROSS
1.19 pazsan 1450: : cell/ tcell<< rshift ;
1.1 anton 1451: >TARGET
1452: 20 CONSTANT bl
1.52 jwilke 1453: \ TNIL Constant NIL
1.1 anton 1454:
1455: >CROSS
1456:
1.20 pazsan 1457: bigendian
1458: [IF]
1.106 ! jwilke 1459: : DS! ( d addr -- ) tcell bounds swap 1-
1.20 pazsan 1460: DO maxbyte ud/mod rot I c! -1 +LOOP 2drop ;
1.106 ! jwilke 1461: : DS@ ( addr -- d ) >r 0 0 r> tcell bounds
! 1462: DO maxbyte * swap maxbyte um* rot + swap I c@ + swap LOOP ;
1.57 pazsan 1463: : Sc! ( n addr -- ) >r s>d r> tchar bounds swap 1-
1464: DO maxbyte ud/mod rot I c! -1 +LOOP 2drop ;
1465: : Sc@ ( addr -- n ) >r 0 0 r> tchar bounds
1466: DO maxbyte * swap maxbyte um* rot + swap I c@ + swap LOOP d>s ;
1.19 pazsan 1467: [ELSE]
1.106 ! jwilke 1468: : DS! ( d addr -- ) tcell bounds
1.20 pazsan 1469: DO maxbyte ud/mod rot I c! LOOP 2drop ;
1.106 ! jwilke 1470: : DS@ ( addr -- n ) >r 0 0 r> tcell bounds swap 1-
! 1471: DO maxbyte * swap maxbyte um* rot + swap I c@ + swap -1 +LOOP ;
1.57 pazsan 1472: : Sc! ( n addr -- ) >r s>d r> tchar bounds
1473: DO maxbyte ud/mod rot I c! LOOP 2drop ;
1474: : Sc@ ( addr -- n ) >r 0 0 r> tchar bounds swap 1-
1475: DO maxbyte * swap maxbyte um* rot + swap I c@ + swap -1 +LOOP d>s ;
1.1 anton 1476: [THEN]
1477:
1.106 ! jwilke 1478: : S! ( n addr -- ) >r s>d r> DS! ;
! 1479: : S@ ( addr -- n ) DS@ d>s ;
! 1480:
1.67 jwilke 1481: : taddr>region ( taddr -- region | 0 )
1482: \G finds for a target-address the correct region
1483: \G returns 0 if taddr is not in range of a target memory region
1484: region-link
1485: BEGIN @ dup
1486: WHILE dup >r
1487: 0 >rlink - >r
1488: r@ >rlen @
1489: IF dup r@ borders within
1490: IF r> r> drop nip EXIT THEN
1491: THEN
1492: r> drop
1493: r>
1494: REPEAT
1495: 2drop 0 ;
1496:
1.103 jwilke 1497: : taddr>region-abort ( taddr -- region | 0 )
1498: dup taddr>region dup 0=
1499: IF drop cr ." Wrong address: " .addr
1500: -1 ABORT" Address out of range!"
1501: THEN nip ;
1502:
1.67 jwilke 1503: : (>regionimage) ( taddr -- 'taddr )
1504: dup
1505: \ find region we want to address
1.103 jwilke 1506: taddr>region-abort
1.67 jwilke 1507: >r
1508: \ calculate offset in region
1509: r@ >rstart @ -
1510: \ add regions real address in our memory
1511: r> >rmem @ + ;
1512:
1.103 jwilke 1513: : (>regionbm) ( taddr -- 'taddr bitmaskbaseaddr )
1514: dup
1515: \ find region we want to address
1516: taddr>region-abort
1517: >r
1518: \ calculate offset in region
1519: r@ >rstart @ -
1520: \ add regions real address in our memory
1521: r> >rbm @ ;
1522:
1523: : (>regiontype) ( taddr -- 'taddr )
1524: dup
1525: \ find region we want to address
1526: taddr>region-abort
1527: >r
1528: \ calculate offset in region
1529: r@ >rstart @ - tcell / cells
1530: \ add regions real address in our memory
1531: r> >rtype @ + ;
1532:
1.1 anton 1533: \ Bit string manipulation 06oct92py
1534: \ 9may93jaw
1535: CREATE Bittable 80 c, 40 c, 20 c, 10 c, 8 c, 4 c, 2 c, 1 c,
1536: : bits ( n -- n ) chars Bittable + c@ ;
1537:
1538: : >bit ( addr n -- c-addr mask ) 8 /mod rot + swap bits ;
1539: : +bit ( addr n -- ) >bit over c@ or swap c! ;
1.4 pazsan 1540: : -bit ( addr n -- ) >bit invert over c@ and swap c! ;
1.67 jwilke 1541:
1.103 jwilke 1542: : @relbit ( taddr -- f ) (>regionbm) swap cell/ >bit swap c@ and ;
1543:
1.84 jwilke 1544: : (relon) ( taddr -- )
1545: [ [IFDEF] fd-relocation-table ]
1546: s" +" fd-relocation-table write-file throw
1547: dup s>d <# #s #> fd-relocation-table write-line throw
1548: [ [THEN] ]
1.103 jwilke 1549: (>regionbm) swap cell/ +bit ;
1.84 jwilke 1550:
1551: : (reloff) ( taddr -- )
1552: [ [IFDEF] fd-relocation-table ]
1553: s" -" fd-relocation-table write-file throw
1554: dup s>d <# #s #> fd-relocation-table write-line throw
1555: [ [THEN] ]
1.103 jwilke 1556: (>regionbm) swap cell/ -bit ;
1.67 jwilke 1557:
1558: : (>image) ( taddr -- absaddr ) image @ + ;
1559:
1560: DEFER >image
1561: DEFER relon
1562: DEFER reloff
1563: DEFER correcter
1564:
1565: T has? relocate H
1566: [IF]
1567: ' (relon) IS relon
1568: ' (reloff) IS reloff
1.103 jwilke 1569: ' (>regionimage) IS >image
1.67 jwilke 1570: [ELSE]
1571: ' drop IS relon
1572: ' drop IS reloff
1.68 jwilke 1573: ' (>regionimage) IS >image
1.67 jwilke 1574: [THEN]
1.1 anton 1575:
1576: \ Target memory access 06oct92py
1577:
1578: : align+ ( taddr -- rest )
1.48 anton 1579: tcell tuck 1- and - [ tcell 1- ] Literal and ;
1.22 anton 1580: : cfalign+ ( taddr -- rest )
1.39 pazsan 1581: \ see kernel.fs:cfaligned
1.43 pazsan 1582: /maxalign tuck 1- and - [ /maxalign 1- ] Literal and ;
1.1 anton 1583:
1584: >TARGET
1585: : aligned ( taddr -- ta-addr ) dup align+ + ;
1586: \ assumes cell alignment granularity (as GNU C)
1587:
1.22 anton 1588: : cfaligned ( taddr1 -- taddr2 )
1.39 pazsan 1589: \ see kernel.fs
1.22 anton 1590: dup cfalign+ + ;
1591:
1.52 jwilke 1592: : @ ( taddr -- w ) >image S@ ;
1593: : ! ( w taddr -- ) >image S! ;
1.57 pazsan 1594: : c@ ( taddr -- char ) >image Sc@ ;
1595: : c! ( char taddr -- ) >image Sc! ;
1.7 anton 1596: : 2@ ( taddr -- x1 x2 ) T dup cell+ @ swap @ H ;
1.82 pazsan 1597: : 2! ( x1 x2 taddr -- ) T tuck ! cell+ ! H ;
1.1 anton 1598:
1599: \ Target compilation primitives 06oct92py
1600: \ included A! 16may93jaw
1601:
1602: : here ( -- there ) there ;
1603: : allot ( n -- ) tdp +! ;
1.78 jwilke 1604: : , ( w -- ) T here H tcell T allot ! H ;
1605: : c, ( char -- ) T here H tchar T allot c! H ;
1606: : align ( -- ) T here H align+ 0 ?DO bl T c, H tchar +LOOP ;
1.22 anton 1607: : cfalign ( -- )
1.78 jwilke 1608: T here H cfalign+ 0 ?DO bl T c, H tchar +LOOP ;
1.1 anton 1609:
1.71 jwilke 1610: : >address dup 0>= IF tbyte / THEN ; \ ?? jaw
1.59 pazsan 1611: : A! swap >address swap dup relon T ! H ;
1612: : A, ( w -- ) >address T here H relon T , H ;
1.1 anton 1613:
1.103 jwilke 1614:
1.1 anton 1615: >CROSS
1616:
1.52 jwilke 1617: : tcmove ( source dest len -- )
1618: \G cmove in target memory
1.57 pazsan 1619: tchar * bounds
1.52 jwilke 1620: ?DO dup T c@ H I T c! H 1+
1.57 pazsan 1621: tchar +LOOP drop ;
1.1 anton 1622:
1.103 jwilke 1623:
1.67 jwilke 1624: \ \ Load Assembler
1625:
1.1 anton 1626: >TARGET
1.74 jwilke 1627: H also Forth definitions
1.1 anton 1628:
1.105 jwilke 1629: \ FIXME: should we include the assembler really in the forth
1630: \ dictionary?!?!?!? This conflicts with the existing assembler
1631: \ of the host forth system!!
1.52 jwilke 1632: [IFDEF] asm-include asm-include [THEN] hex
1.1 anton 1633:
1.52 jwilke 1634: previous
1.103 jwilke 1635:
1636: \ \ -------------------- Host/Target copy etc. 29aug01jaw
1637:
1638:
1639: >CROSS
1640:
1641: : th-count ( taddr -- host-addr len )
1642: \G returns host address of target string
1643: assert1( tbyte 1 = )
1644: dup X c@ swap X char+ >image swap ;
1645:
1646: : ht-move ( haddr taddr len -- )
1647: \G moves data from host-addr to destination in target-addr
1648: \G character by character
1649: swap -rot bounds ?DO I c@ over X c! X char+ LOOP drop ;
1650:
1651: 2Variable last-string
1652:
1653: : ht-string, ( addr count -- )
1654: dup there swap last-string 2!
1655: dup T c, H bounds ?DO I c@ T c, H LOOP ;
1656:
1657: >TARGET
1658:
1659: : count dup X c@ swap X char+ swap ;
1660: \ FIXME -1 on 64 bit machines?!?!
1661: : on T -1 swap ! H ;
1662: : off T 0 swap ! H ;
1.1 anton 1663:
1.52 jwilke 1664: >CROSS
1665:
1.103 jwilke 1666: : (cc) T a, H ; ' (cc) plugin-of colon,
1.105 jwilke 1667: : (prim) T a, H ; ' (prim) plugin-of prim,
1.52 jwilke 1668:
1.105 jwilke 1669: : (cr) >tempdp ]comp prim, comp[ tempdp> ; ' (cr) plugin-of colon-resolve
1.103 jwilke 1670: : (ar) T ! H ; ' (ar) plugin-of addr-resolve
1.54 pazsan 1671: : (dr) ( ghost res-pnt target-addr addr )
1672: >tempdp drop over
1673: dup >magic @ <do:> =
1674: IF doer,
1675: ELSE dodoes,
1676: THEN
1.103 jwilke 1677: tempdp> ; ' (dr) plugin-of doer-resolve
1.54 pazsan 1678:
1679: : (cm) ( -- addr )
1680: T here align H
1.103 jwilke 1681: -1 colon, ; ' (cm) plugin-of colonmark,
1.1 anton 1682:
1.52 jwilke 1683: >TARGET
1.105 jwilke 1684: : compile, ( xt -- )
1685: dup xt>ghost >ghost-flags <primitive> get-flag
1686: IF prim, ELSE colon, THEN ;
1.52 jwilke 1687: >CROSS
1.1 anton 1688:
1.102 jwilke 1689: \ resolve structure
1690:
1691: : >next ; \ link to next field
1692: : >tag cell+ ; \ indecates type of reference: 0: call, 1: address, 2: doer
1693: : >taddr cell+ cell+ ;
1694: : >ghost 3 cells + ;
1695: : >file 4 cells + ;
1696: : >line 5 cells + ;
1697:
1698: : (refered) ( ghost addr tag -- )
1699: \G creates a reference to ghost at address taddr
1.103 jwilke 1700: >space
1701: rot >link linked
1.102 jwilke 1702: ( taddr tag ) ,
1703: ( taddr ) ,
1704: last-header-ghost @ ,
1705: loadfile ,
1706: sourceline# ,
1.103 jwilke 1707: space>
1.102 jwilke 1708: ;
1709:
1.52 jwilke 1710: : refered ( ghost tag -- )
1.53 jwilke 1711: \G creates a resolve structure
1.54 pazsan 1712: T here aligned H swap (refered)
1713: ;
1714:
1715: : killref ( addr ghost -- )
1716: \G kills a forward reference to ghost at position addr
1717: \G this is used to eleminate a :dovar refence after making a DOES>
1718: dup >magic @ <fwd> <> IF 2drop EXIT THEN
1719: swap >r >link
1720: BEGIN dup @ dup ( addr last this )
1721: WHILE dup >taddr @ r@ =
1722: IF @ over !
1723: ELSE nip THEN
1724: REPEAT rdrop 2drop
1.53 jwilke 1725: ;
1.48 anton 1726:
1.52 jwilke 1727: Defer resolve-warning
1.1 anton 1728:
1.52 jwilke 1729: : reswarn-test ( ghost res-struct -- ghost res-struct )
1.78 jwilke 1730: over cr ." Resolving " .ghost dup ." in " >ghost @ .ghost ;
1.1 anton 1731:
1.52 jwilke 1732: : reswarn-forward ( ghost res-struct -- ghost res-struct )
1.78 jwilke 1733: over warnhead .ghost dup ." is referenced in "
1734: >ghost @ .ghost ;
1.1 anton 1735:
1.52 jwilke 1736: \ ' reswarn-test IS resolve-warning
1737:
1.1 anton 1738: \ resolve 14oct92py
1739:
1.54 pazsan 1740: : resolve-loop ( ghost resolve-list tcfa -- )
1741: >r
1742: BEGIN dup WHILE
1743: \ dup >tag @ 2 = IF reswarn-forward THEN
1744: resolve-warning
1745: r@ over >taddr @
1746: 2 pick >tag @
1747: CASE 0 OF colon-resolve ENDOF
1748: 1 OF addr-resolve ENDOF
1749: 2 OF doer-resolve ENDOF
1750: ENDCASE
1751: @ \ next list element
1752: REPEAT 2drop rdrop
1753: ;
1.52 jwilke 1754:
1755: \ : resolve-loop ( ghost tcfa -- ghost tcfa )
1756: \ >r dup >link @
1757: \ BEGIN dup WHILE dup T @ H r@ rot T ! H REPEAT drop r> ;
1.1 anton 1758:
1759: \ exists 9may93jaw
1760:
1.103 jwilke 1761: : exists ( ghost tcfa -- )
1762: \G print warning and set new target link in ghost
1763: swap exists-warning
1764: >link ! ;
1.52 jwilke 1765:
1.105 jwilke 1766: : colon-resolved ( ghost -- )
1767: >link @ colon, ; \ compile-call
1768:
1769: : prim-resolved ( ghost -- )
1770: >link @ prim, ;
1771:
1772: \ FIXME: not activated
1773: : does-resolved ( ghost -- )
1774: dup g>body alit, >do:ghost @ g>body colon, ;
1775:
1776: : (is-forward) ( ghost -- )
1777: colonmark, 0 (refered) ; \ compile space for call
1778: ' (is-forward) IS is-forward
1.1 anton 1779:
1780: : resolve ( ghost tcfa -- )
1.54 pazsan 1781: \G resolve referencies to ghost with tcfa
1.103 jwilke 1782: dup taddr>region 0<> IF
1783: 2dup (>regiontype) define-addr-struct addr-xt-ghost
1784:
1785: \ we define new address only if empty
1.105 jwilke 1786: \ this is for not to take over the alias ghost
1787: \ (different ghost, but identical xt)
1.103 jwilke 1788: \ but the very first that really defines it
1789: dup @ 0= IF ! ELSE 2drop THEN
1790: THEN
1791:
1792: \ is ghost resolved?, second resolve means another
1793: \ definition with the same name
1.75 jwilke 1794: over undefined? 0= IF exists EXIT THEN
1.54 pazsan 1795: \ get linked-list
1796: swap >r r@ >link @ swap \ ( list tcfa R: ghost )
1797: \ mark ghost as resolved
1798: dup r@ >link ! <res> r@ >magic !
1.105 jwilke 1799: r@ >comp @ ['] is-forward = IF
1800: ['] prim-resolved r@ >comp ! THEN
1.54 pazsan 1801: \ loop through forward referencies
1802: r> -rot
1803: comp-state @ >r Resolving comp-state !
1804: resolve-loop
1805: r> comp-state !
1806:
1807: ['] noop IS resolve-warning
1.52 jwilke 1808: ;
1.1 anton 1809:
1810: \ gexecute ghost, 01nov92py
1811:
1.105 jwilke 1812: \ FIXME cleanup
1813: \ : is-resolved ( ghost -- )
1814: \ >link @ colon, ; \ compile-call
1.102 jwilke 1815:
1.103 jwilke 1816: : (gexecute) ( ghost -- )
1.105 jwilke 1817: dup >comp @ EXECUTE ;
1.103 jwilke 1818:
1819: : gexecute ( ghost -- )
1.105 jwilke 1820: dup >magic @ <imm> = IF -1 ABORT" CROSS: gexecute on immediate word" THEN
1.103 jwilke 1821: (gexecute) ;
1.52 jwilke 1822:
1823: : addr, ( ghost -- )
1.105 jwilke 1824: dup forward? IF 1 refered 0 T a, H ELSE >link @ T a, H THEN ;
1.52 jwilke 1825:
1826: \ !! : ghost, ghost gexecute ;
1.1 anton 1827:
1828: \ .unresolved 11may93jaw
1829:
1830: variable ResolveFlag
1831:
1832: \ ?touched 11may93jaw
1833:
1.52 jwilke 1834: : ?touched ( ghost -- flag ) dup forward? swap >link @
1.1 anton 1835: 0 <> and ;
1836:
1.53 jwilke 1837: : .forwarddefs ( ghost -- )
1.103 jwilke 1838: ." appeared in:"
1839: >link
1840: BEGIN @ dup
1841: WHILE cr 5 spaces
1842: dup >ghost @ .ghost
1843: ." file " dup >file @ ?dup IF count type ELSE ." CON" THEN
1844: ." line " dup >line @ .dec
1845: REPEAT
1846: drop ;
1847:
1848: : ?resolved ( ghost -- )
1849: dup ?touched
1850: IF ResolveFlag on
1851: dup cr .ghost .forwarddefs
1.53 jwilke 1852: ELSE drop
1853: THEN ;
1.1 anton 1854:
1855: : .unresolved ( -- )
1856: ResolveFlag off cr ." Unresolved: "
1.103 jwilke 1857: ghost-list
1.1 anton 1858: BEGIN @ dup
1859: WHILE dup ?resolved
1.10 anton 1860: REPEAT drop ResolveFlag @
1861: IF
1.48 anton 1862: -1 abort" Unresolved words!"
1.10 anton 1863: ELSE
1864: ." Nothing!"
1865: THEN
1866: cr ;
1.1 anton 1867:
1.52 jwilke 1868: : .stats
1869: base @ >r decimal
1870: cr ." named Headers: " headers-named @ .
1871: r> base ! ;
1872:
1.79 jwilke 1873: >MINIMAL
1874:
1875: : .unresolved .unresolved ;
1876:
1.1 anton 1877: >CROSS
1878: \ Header states 12dec92py
1879:
1.102 jwilke 1880: \ : flag! ( 8b -- ) tlast @ dup >r T c@ xor r> c! H ;
1.90 pazsan 1881: bigendian [IF] 0 [ELSE] tcell 1- [THEN] Constant flag+
1882: : flag! ( w -- ) tlast @ flag+ + dup >r T c@ xor r> c! H ;
1.1 anton 1883:
1884: VARIABLE ^imm
1885:
1.105 jwilke 1886: \ !! should be target wordsize specific
1887: $80 constant alias-mask
1888: $40 constant immediate-mask
1889: $20 constant restrict-mask
1890:
1.1 anton 1891: >TARGET
1.105 jwilke 1892: : immediate immediate-mask flag!
1.18 pazsan 1893: ^imm @ @ dup <imm> = IF drop EXIT THEN
1.1 anton 1894: <res> <> ABORT" CROSS: Cannot immediate a unresolved word"
1895: <imm> ^imm @ ! ;
1.105 jwilke 1896: : restrict restrict-mask flag! ;
1.52 jwilke 1897:
1.54 pazsan 1898: : isdoer
1899: \G define a forth word as doer, this makes obviously only sence on
1900: \G forth processors such as the PSC1000
1901: <do:> last-header-ghost @ >magic ! ;
1.1 anton 1902: >CROSS
1903:
1904: \ Target Header Creation 01nov92py
1905:
1.103 jwilke 1906: : ht-lstring, ( addr count -- )
1.102 jwilke 1907: dup T , H bounds ?DO I c@ T c, H LOOP ;
1908:
1.103 jwilke 1909: >TARGET
1910: : name, ( "name" -- ) bl word count ht-lstring, X cfalign ;
1.1 anton 1911: : view, ( -- ) ( dummy ) ;
1.52 jwilke 1912: >CROSS
1.1 anton 1913:
1.25 pazsan 1914: \ Target Document Creation (goes to crossdoc.fd) 05jul95py
1915:
1.55 pazsan 1916: s" ./doc/crossdoc.fd" r/w create-file throw value doc-file-id
1.25 pazsan 1917: \ contains the file-id of the documentation file
1918:
1.40 pazsan 1919: : T-\G ( -- )
1.25 pazsan 1920: source >in @ /string doc-file-id write-line throw
1.40 pazsan 1921: postpone \ ;
1.25 pazsan 1922:
1.39 pazsan 1923: Variable to-doc to-doc on
1.25 pazsan 1924:
1925: : cross-doc-entry ( -- )
1926: to-doc @ tlast @ 0<> and \ not an anonymous (i.e. noname) header
1927: IF
1928: s" " doc-file-id write-line throw
1929: s" make-doc " doc-file-id write-file throw
1.102 jwilke 1930:
1.105 jwilke 1931: Last-Header-Ghost @ >ghostname doc-file-id write-file throw
1.25 pazsan 1932: >in @
1933: [char] ( parse 2drop
1934: [char] ) parse doc-file-id write-file throw
1935: s" )" doc-file-id write-file throw
1936: [char] \ parse 2drop
1.40 pazsan 1937: T-\G
1.25 pazsan 1938: >in !
1.39 pazsan 1939: THEN ;
1.25 pazsan 1940:
1.28 pazsan 1941: \ Target TAGS creation
1942:
1.39 pazsan 1943: s" kernel.TAGS" r/w create-file throw value tag-file-id
1.28 pazsan 1944: \ contains the file-id of the tags file
1945:
1946: Create tag-beg 2 c, 7F c, bl c,
1947: Create tag-end 2 c, bl c, 01 c,
1948: Create tag-bof 1 c, 0C c,
1949:
1950: 2variable last-loadfilename 0 0 last-loadfilename 2!
1951:
1952: : put-load-file-name ( -- )
1.77 jwilke 1953: sourcefilename last-loadfilename 2@ d<>
1.28 pazsan 1954: IF
1955: tag-bof count tag-file-id write-line throw
1.31 anton 1956: sourcefilename 2dup
1.28 pazsan 1957: tag-file-id write-file throw
1958: last-loadfilename 2!
1959: s" ,0" tag-file-id write-line throw
1960: THEN ;
1961:
1962: : cross-tag-entry ( -- )
1963: tlast @ 0<> \ not an anonymous (i.e. noname) header
1964: IF
1965: put-load-file-name
1966: source >in @ min tag-file-id write-file throw
1967: tag-beg count tag-file-id write-file throw
1.77 jwilke 1968: tlast @ >image count 1F and tag-file-id write-file throw
1.28 pazsan 1969: tag-end count tag-file-id write-file throw
1.31 anton 1970: base @ decimal sourceline# 0 <# #s #> tag-file-id write-file throw
1.28 pazsan 1971: \ >in @ 0 <# #s [char] , hold #> tag-file-id write-line throw
1972: s" ,0" tag-file-id write-line throw
1973: base !
1974: THEN ;
1975:
1.43 pazsan 1976: \ Check for words
1977:
1978: Defer skip? ' false IS skip?
1979:
1.103 jwilke 1980: : skipdef ( "name" -- )
1.79 jwilke 1981: \G skip definition of an undefined word in undef-words and
1982: \G all-words mode
1.103 jwilke 1983: Ghost dup forward?
1.75 jwilke 1984: IF >magic <skip> swap !
1985: ELSE drop THEN ;
1986:
1.103 jwilke 1987: : tdefined? ( "name" -- flag )
1988: Ghost undefined? 0= ;
1.75 jwilke 1989:
1.103 jwilke 1990: : defined2? ( "name" -- flag )
1.75 jwilke 1991: \G return true for anything else than forward, even for <skip>
1992: \G that's what we want
1.103 jwilke 1993: Ghost forward? 0= ;
1.43 pazsan 1994:
1.103 jwilke 1995: : forced? ( "name" -- flag )
1.79 jwilke 1996: \G return ture if it is a foreced skip with defskip
1.103 jwilke 1997: Ghost >magic @ <skip> = ;
1.79 jwilke 1998:
1.43 pazsan 1999: : needed? ( -- flag ) \ name
1.48 anton 2000: \G returns a false flag when
2001: \G a word is not defined
2002: \G a forward reference exists
2003: \G so the definition is not skipped!
2004: bl word gfind
1.75 jwilke 2005: IF dup undefined?
1.48 anton 2006: nip
2007: 0=
2008: ELSE drop true THEN ;
1.43 pazsan 2009:
1.44 pazsan 2010: : doer? ( -- flag ) \ name
1.103 jwilke 2011: Ghost >magic @ <do:> = ;
1.44 pazsan 2012:
1.43 pazsan 2013: : skip-defs ( -- )
2014: BEGIN refill WHILE source -trailing nip 0= UNTIL THEN ;
2015:
1.28 pazsan 2016: \ Target header creation
2017:
1.54 pazsan 2018: Variable NoHeaderFlag
2019: NoHeaderFlag off
1.1 anton 2020:
1.54 pazsan 2021: : 0.r ( n1 n2 -- )
2022: base @ >r hex
2023: 0 swap <# 0 ?DO # LOOP #> type
2024: r> base ! ;
1.84 jwilke 2025:
2026: : .sym ( adr len -- )
2027: \G escapes / and \ to produce sed output
1.52 jwilke 2028: bounds
2029: DO I c@ dup
1.77 jwilke 2030: CASE [char] / OF drop ." \/" ENDOF
2031: [char] \ OF drop ." \\" ENDOF
1.52 jwilke 2032: dup OF emit ENDOF
2033: ENDCASE
1.54 pazsan 2034: LOOP ;
1.52 jwilke 2035:
1.103 jwilke 2036: Defer setup-execution-semantics
2037: 0 Value lastghost
2038:
2039: : (THeader ( "name" -- ghost )
1.54 pazsan 2040: \ >in @ bl word count type 2 spaces >in !
2041: \ wordheaders will always be compiled to rom
2042: switchrom
2043: \ build header in target
2044: NoHeaderFlag @
2045: IF NoHeaderFlag off
2046: ELSE
2047: T align H view,
1.78 jwilke 2048: tlast @ dup 0> IF tcell - THEN T A, H there tlast !
1.54 pazsan 2049: 1 headers-named +! \ Statistic
2050: >in @ T name, H >in !
2051: THEN
2052: T cfalign here H tlastcfa !
1.84 jwilke 2053: \ Old Symbol table sed-script
1.54 pazsan 2054: \ >in @ cr ." sym:s/CFA=" there 4 0.r ." /" bl word count .sym ." /g" cr >in !
1.103 jwilke 2055: HeaderGhost
1.84 jwilke 2056: \ output symbol table to extra file
2057: [ [IFDEF] fd-symbol-table ]
2058: base @ hex there s>d <# 8 0 DO # LOOP #> fd-symbol-table write-file throw base !
2059: s" :" fd-symbol-table write-file throw
2060: dup >ghostname fd-symbol-table write-line throw
2061: [ [THEN] ]
1.103 jwilke 2062: dup Last-Header-Ghost ! dup to lastghost
1.54 pazsan 2063: dup >magic ^imm ! \ a pointer for immediate
1.105 jwilke 2064: alias-mask flag!
1.103 jwilke 2065: cross-doc-entry cross-tag-entry
2066: setup-execution-semantics
2067: ;
1.1 anton 2068:
1.52 jwilke 2069: \ this is the resolver information from ":"
2070: \ resolving is done by ";"
1.103 jwilke 2071: Variable ;Resolve 1 cells allot
2072:
2073: : hereresolve ( ghost -- )
2074: there resolve 0 ;Resolve ! ;
1.1 anton 2075:
1.11 pazsan 2076: : Theader ( "name" -- ghost )
1.103 jwilke 2077: (THeader dup hereresolve ;
2078:
2079: Variable aprim-nr -20 aprim-nr !
2080:
2081: : copy-execution-semantics ( ghost-from ghost-dest -- )
2082: >r
2083: dup >exec @ r@ >exec !
2084: dup >exec2 @ r@ >exec2 !
2085: dup >exec-compile @ r@ >exec-compile !
2086: dup >ghost-xt @ r@ >ghost-xt !
2087: dup >created @ r@ >created !
2088: rdrop drop ;
1.1 anton 2089:
2090: >TARGET
1.103 jwilke 2091:
1.1 anton 2092: : Alias ( cfa -- ) \ name
1.103 jwilke 2093: >in @ skip? IF 2drop EXIT THEN >in !
2094: (THeader ( S xt ghost )
1.105 jwilke 2095: 2dup swap xt>ghost swap copy-execution-semantics
2096: over resolve T A, H alias-mask flag! ;
1.103 jwilke 2097:
2098: Variable last-prim-ghost
2099: 0 last-prim-ghost !
2100:
2101: : asmprimname, ( ghost -- : name )
2102: dup last-prim-ghost !
2103: >r
2104: here bl word count string, r@ >asm-name !
2105: aprim-nr @ r> >asm-dummyaddr ! ;
2106:
2107: Defer setup-prim-semantics
2108:
2109: : aprim ( -- )
2110: THeader -1 aprim-nr +! aprim-nr @ T A, H
2111: asmprimname,
2112: setup-prim-semantics ;
2113:
2114: : aprim: ( -- )
2115: -1 aprim-nr +! aprim-nr @
2116: Ghost tuck swap resolve <do:> swap tuck >magic !
2117: asmprimname, ;
2118:
1.42 pazsan 2119: : Alias: ( cfa -- ) \ name
1.103 jwilke 2120: >in @ skip? IF 2drop EXIT THEN >in !
2121: dup 0< s" prims" T $has? H 0= and
2122: IF
2123: .sourcepos ." needs doer: " >in @ bl word count type >in ! cr
2124: THEN
2125: Ghost tuck swap resolve <do:> swap >magic ! ;
1.64 pazsan 2126:
2127: Variable prim#
2128: : first-primitive ( n -- ) prim# ! ;
2129: : Primitive ( -- ) \ name
1.103 jwilke 2130: >in @ skip? IF 2drop EXIT THEN >in !
2131: dup 0< s" prims" T $has? H 0= and
2132: IF
2133: .sourcepos ." needs prim: " >in @ bl word count type >in ! cr
2134: THEN
2135: prim# @ (THeader ( S xt ghost )
1.105 jwilke 2136: dup >ghost-flags <primitive> set-flag
2137: over resolve T A, H alias-mask flag!
1.103 jwilke 2138: -1 prim# +! ;
1.1 anton 2139: >CROSS
2140:
2141: \ Conditionals and Comments 11may93jaw
2142:
1.103 jwilke 2143: \G saves the existing cond action, this is used for redefining in
2144: \G instant
2145: Variable cond-xt-old
2146:
2147: : cond-target ( -- )
2148: \G Compiles semantic of redefined cond into new one
2149: cond-xt-old @ compile, ; immediate restrict
2150:
1.1 anton 2151: : ;Cond
2152: postpone ;
2153: swap ! ; immediate
2154:
1.103 jwilke 2155: : Cond: ( "name" -- )
2156: \g defines a conditional or another word that must
2157: \g be executed directly while compiling
2158: \g these words have no interpretative semantics by default
2159: Ghost
2160: >exec-compile
2161: dup @ cond-xt-old !
1.1 anton 2162: :NONAME ;
2163:
2164:
2165: : Comment ( -- )
1.103 jwilke 2166: >in @ Ghost swap >in ! ' swap
2167: 2dup >exec-compile ! >exec ! ;
1.1 anton 2168:
2169: Comment ( Comment \
2170:
2171: \ compile 10may93jaw
2172:
1.103 jwilke 2173: : compile ( "name" -- ) \ name
2174: \ bl word gfind 0= ABORT" CROSS: Can't compile "
2175: ghost
2176: dup >exec-compile @ ?dup
2177: IF nip compile,
2178: ELSE postpone literal postpone gexecute THEN ; immediate restrict
2179:
1.52 jwilke 2180: >TARGET
2181:
1.105 jwilke 2182: : ' ( -- xt )
2183: \G returns the target-cfa of a ghost
1.52 jwilke 2184: bl word gfind 0= ABORT" CROSS: Ghost don't exists"
1.105 jwilke 2185: g>xt ;
1.52 jwilke 2186:
1.103 jwilke 2187: \ FIXME: this works for the current use cases, but is not
2188: \ in all cases correct ;-)
2189: : comp' X ' 0 ;
2190:
1.52 jwilke 2191: Cond: ['] T ' H alit, ;Cond
2192:
2193: >CROSS
2194:
2195: : [T']
2196: \ returns the target-cfa of a ghost, or compiles it as literal
1.105 jwilke 2197: postpone [G'] state @ IF postpone g>xt ELSE g>xt THEN ; immediate
1.42 pazsan 2198:
1.52 jwilke 2199: \ \ threading modell 13dec92py
2200: \ modularized 14jun97jaw
2201:
1.106 ! jwilke 2202: T 2 cells H Value xt>body
1.52 jwilke 2203:
1.103 jwilke 2204: : (>body) ( cfa -- pfa )
1.105 jwilke 2205: xt>body + ; ' (>body) plugin-of t>body
2206:
2207: : fillcfa ( usedcells -- )
1.106 ! jwilke 2208: T cells H xt>body swap -
1.105 jwilke 2209: assert1( dup 0 >= )
2210: 0 ?DO 0 X c, tchar +LOOP ;
1.52 jwilke 2211:
1.103 jwilke 2212: : (doer,) ( ghost -- )
1.105 jwilke 2213: addr, 1 fillcfa ; ' (doer,) plugin-of doer,
1.52 jwilke 2214:
1.105 jwilke 2215: : (docol,) ( -- ) [G'] :docol (doer,) ; ' (docol,) plugin-of docol,
1.52 jwilke 2216:
2217: : (doprim,) ( -- )
1.105 jwilke 2218: there xt>body + ca>native T a, H 1 fillcfa ; ' (doprim,) plugin-of doprim,
1.52 jwilke 2219:
2220: : (doeshandler,) ( -- )
1.105 jwilke 2221: T cfalign H compile :doesjump T 0 , H ; ' (doeshandler,) plugin-of doeshandler,
1.52 jwilke 2222:
2223: : (dodoes,) ( does-action-ghost -- )
2224: ]comp [G'] :dodoes gexecute comp[
2225: addr,
1.103 jwilke 2226: \ the relocator in the c engine, does not like the
2227: \ does-address to marked for relocation
2228: [ T e? ec H 0= [IF] ] T here H tcell - reloff [ [THEN] ]
1.105 jwilke 2229: 2 fillcfa ; ' (dodoes,) plugin-of dodoes,
1.52 jwilke 2230:
1.105 jwilke 2231: : (lit,) ( n -- ) compile lit T , H ; ' (lit,) plugin-of lit,
1.52 jwilke 2232:
1.67 jwilke 2233: \ if we dont produce relocatable code alit, defaults to lit, jaw
1.84 jwilke 2234: \ this is just for convenience, so we don't have to define alit,
2235: \ seperately for embedded systems....
2236: T has? relocate H
1.67 jwilke 2237: [IF]
1.105 jwilke 2238: : (alit,) ( n -- ) compile lit T a, H ; ' (alit,) plugin-of alit,
1.67 jwilke 2239: [ELSE]
1.105 jwilke 2240: : (alit,) ( n -- ) lit, ; ' (alit,) plugin-of alit,
1.67 jwilke 2241: [THEN]
1.52 jwilke 2242:
1.105 jwilke 2243: : (fini,) compile ;s ; ' (fini,) plugin-of fini,
1.42 pazsan 2244:
1.43 pazsan 2245: [IFUNDEF] (code)
2246: Defer (code)
2247: Defer (end-code)
2248: [THEN]
2249:
1.1 anton 2250: >TARGET
1.43 pazsan 2251: : Code
1.52 jwilke 2252: defempty?
1.48 anton 2253: (THeader there resolve
1.53 jwilke 2254: [ T e? prims H 0= [IF] T e? ITC H [ELSE] true [THEN] ] [IF]
1.52 jwilke 2255: doprim,
1.48 anton 2256: [THEN]
2257: depth (code) ;
1.43 pazsan 2258:
2259: : Code:
1.52 jwilke 2260: defempty?
1.103 jwilke 2261: Ghost dup there ca>native resolve <do:> swap >magic !
1.43 pazsan 2262: depth (code) ;
2263:
2264: : end-code
1.52 jwilke 2265: (end-code)
1.43 pazsan 2266: depth ?dup IF 1- <> ABORT" CROSS: Stack changed"
2267: ELSE true ABORT" CROSS: Stack empty" THEN
1.52 jwilke 2268: ;
1.14 anton 2269:
1.1 anton 2270: >CROSS
1.52 jwilke 2271:
1.1 anton 2272: \ tLiteral 12dec92py
2273:
2274: >TARGET
1.40 pazsan 2275: Cond: \G T-\G ;Cond
2276:
1.105 jwilke 2277: Cond: Literal ( n -- ) lit, ;Cond
1.103 jwilke 2278: Cond: ALiteral ( n -- ) alit, ;Cond
1.1 anton 2279:
2280: : Char ( "<char>" -- ) bl word char+ c@ ;
1.103 jwilke 2281: Cond: [Char] ( "<char>" -- ) Char lit, ;Cond
2282:
1.104 jwilke 2283: tchar 1 = [IF]
2284: Cond: chars ;Cond
2285: [THEN]
1.1 anton 2286:
1.43 pazsan 2287: \ some special literals 27jan97jaw
2288:
1.52 jwilke 2289: \ !! Known Bug: Special Literals and plug-ins work only correct
1.102 jwilke 2290: \ on 16 and 32 Bit Targets and 32 Bit Hosts!
1.52 jwilke 2291:
1.43 pazsan 2292: Cond: MAXU
1.102 jwilke 2293: tcell 1 cells u>
2294: IF compile lit tcell 0 ?DO FF T c, H LOOP
2295: ELSE ffffffff lit, THEN
1.52 jwilke 2296: ;Cond
1.43 pazsan 2297:
2298: Cond: MINI
1.102 jwilke 2299: tcell 1 cells u>
2300: IF compile lit bigendian
2301: IF 80 T c, H tcell 1 ?DO 0 T c, H LOOP
2302: ELSE tcell 1 ?DO 0 T c, H LOOP 80 T c, H
2303: THEN
2304: ELSE tcell 2 = IF 8000 ELSE 80000000 THEN lit, THEN
1.52 jwilke 2305: ;Cond
1.43 pazsan 2306:
2307: Cond: MAXI
1.102 jwilke 2308: tcell 1 cells u>
2309: IF compile lit bigendian
2310: IF 7F T c, H tcell 1 ?DO FF T c, H LOOP
2311: ELSE tcell 1 ?DO FF T c, H LOOP 7F T c, H
2312: THEN
2313: ELSE tcell 2 = IF 7fff ELSE 7fffffff THEN lit, THEN
1.43 pazsan 2314: ;Cond
2315:
1.1 anton 2316: >CROSS
2317: \ Target compiling loop 12dec92py
2318: \ ">tib trick thrown out 10may93jaw
2319: \ number? defined at the top 11may93jaw
1.77 jwilke 2320: \ replaced >in by save-input
2321:
2322: : discard 0 ?DO drop LOOP ;
1.1 anton 2323:
2324: \ compiled word might leave items on stack!
1.77 jwilke 2325: : tcom ( x1 .. xn n name -- )
2326: \ dup count type space
1.103 jwilke 2327: gfind
2328: IF >r ( discard saved input state ) discard r>
2329: dup >exec-compile @ ?dup
2330: IF nip execute-exec-compile ELSE gexecute THEN
1.77 jwilke 2331: EXIT
2332: THEN
2333: number? dup
2334: IF 0> IF swap lit, THEN lit, discard
1.103 jwilke 2335: ELSE 2drop restore-input throw Ghost gexecute THEN ;
1.1 anton 2336:
2337: >TARGET
2338: \ : ; DOES> 13dec92py
2339: \ ] 9may93py/jaw
2340:
1.105 jwilke 2341: : compiling-state ( -- )
2342: \G set states to compililng
1.54 pazsan 2343: Compiling comp-state !
1.103 jwilke 2344: \ if we have a state in target, change it with the compile state
1.105 jwilke 2345: [G'] state dup undefined? 0=
2346: IF >ghost-xt @ execute X on ELSE drop THEN ;
2347:
2348: : interpreting-state ( -- )
2349: \G set states to interpreting
2350: \ if target has a state variable, change it according to our state
2351: [G'] state dup undefined? 0=
2352: IF >ghost-xt @ execute X off ELSE drop THEN
2353: Interpreting comp-state ! ;
2354:
2355: : ]
2356: compiling-state
1.1 anton 2357: BEGIN
1.77 jwilke 2358: BEGIN save-input bl word
2359: dup c@ 0= WHILE drop discard refill 0=
1.1 anton 2360: ABORT" CROSS: End of file while target compiling"
2361: REPEAT
2362: tcom
1.103 jwilke 2363: compiling? 0=
1.1 anton 2364: UNTIL ;
2365:
2366: \ by the way: defining a second interpreter (a compiler-)loop
2367: \ is not allowed if a system should be ans conform
2368:
2369: : : ( -- colon-sys ) \ Name
1.52 jwilke 2370: defempty?
2371: constflag off \ don't let this flag work over colon defs
2372: \ just to go sure nothing unwanted happens
1.43 pazsan 2373: >in @ skip? IF drop skip-defs EXIT THEN >in !
1.1 anton 2374: (THeader ;Resolve ! there ;Resolve cell+ !
1.103 jwilke 2375: docol, ]comp colon-start depth T ] H ;
1.1 anton 2376:
1.37 pazsan 2377: : :noname ( -- colon-sys )
1.103 jwilke 2378: X cfalign
2379: \ FIXME: cleanup!!!!!!!!
2380: \ idtentical to : with dummy ghost?!
2381: here ghostheader dup ;Resolve ! dup last-header-ghost ! to lastghost
2382: there ;Resolve cell+ !
2383: there docol, ]comp
2384: colon-start depth T ] H ;
1.37 pazsan 2385:
1.103 jwilke 2386: Cond: EXIT ( -- ) compile ;S ;Cond
1.6 anton 2387:
2388: Cond: ?EXIT ( -- ) 1 abort" CROSS: using ?exit" ;Cond
1.2 pazsan 2389:
1.52 jwilke 2390: >CROSS
2391: : LastXT ;Resolve @ 0= abort" CROSS: no definition for LastXT"
2392: ;Resolve cell+ @ ;
2393:
2394: >TARGET
2395:
1.103 jwilke 2396: Cond: recurse ( -- ) Last-Header-Ghost @ gexecute ;Cond
1.52 jwilke 2397:
1.103 jwilke 2398: Cond: ; ( -- )
1.105 jwilke 2399: depth ?dup
2400: IF 1- <> ABORT" CROSS: Stack changed"
2401: ELSE true ABORT" CROSS: Stack empty"
2402: THEN
2403: colon-end
2404: fini,
2405: comp[
2406: ;Resolve @
2407: IF ;Resolve @ ;Resolve cell+ @ resolve
2408: ['] colon-resolved ;Resolve @ >comp !
2409: THEN
2410: interpreting-state
2411: ;Cond
2412:
2413: Cond: [ ( -- ) interpreting-state ;Cond
1.1 anton 2414:
2415: >CROSS
1.54 pazsan 2416:
2417: Create GhostDummy ghostheader
2418: <res> GhostDummy >magic !
2419:
1.52 jwilke 2420: : !does ( does-action -- )
2421: \ !! zusammenziehen und dodoes, machen!
1.54 pazsan 2422: tlastcfa @ [G'] :dovar killref
2423: \ tlastcfa @ dup there >r tdp ! compile :dodoes r> tdp ! T cell+ ! H ;
1.52 jwilke 2424: \ !! geht so nicht, da dodoes, ghost will!
1.54 pazsan 2425: GhostDummy >link ! GhostDummy
2426: tlastcfa @ >tempdp dodoes, tempdp> ;
1.1 anton 2427:
1.103 jwilke 2428:
2429: Defer instant-interpret-does>-hook
2430:
2431: : resolve-does>-part ( -- )
2432: \ resolve words made by builders
1.105 jwilke 2433: Last-Header-Ghost @ >do:ghost @ ?dup
2434: IF there resolve
2435: \ TODO: set special DOES> resolver action here
2436: THEN ;
1.103 jwilke 2437:
1.1 anton 2438: >TARGET
1.103 jwilke 2439: Cond: DOES>
2440: compile (does>) doeshandler,
2441: resolve-does>-part
1.1 anton 2442: ;Cond
1.103 jwilke 2443:
2444: : DOES> switchrom doeshandler, T here H !does
2445: instant-interpret-does>-hook
2446: depth T ] H ;
1.1 anton 2447:
2448: >CROSS
2449: \ Creation 01nov92py
2450:
2451: \ Builder 11may93jaw
2452:
1.105 jwilke 2453: : Builder ( Create-xt do-ghost "name" -- )
1.52 jwilke 2454: \ builds up a builder in current vocabulary
2455: \ create-xt is executed when word is interpreted
1.106 ! jwilke 2456: \ do:-xt is executed when the created word from builder is executed
1.105 jwilke 2457: \ for do:-xt an additional entry after the normal ghost-entrys is used
1.52 jwilke 2458:
1.105 jwilke 2459: Make-Ghost ( Create-xt do-ghost ghost )
1.103 jwilke 2460: dup >created on
1.105 jwilke 2461: rot swap ( do-ghost Create-xt ghost )
2462: tuck >exec !
2463: tuck >do:ghost !
2464: ['] prim-resolved over >comp !
2465: drop ;
1.1 anton 2466:
1.52 jwilke 2467: : gdoes, ( ghost -- )
2468: \ makes the codefield for a word that is built
1.103 jwilke 2469: >do:ghost @ dup undefined? 0=
1.52 jwilke 2470: IF
1.42 pazsan 2471: dup >magic @ <do:> =
1.54 pazsan 2472: IF doer,
2473: ELSE dodoes,
2474: THEN
2475: EXIT
1.52 jwilke 2476: THEN
2477: \ compile :dodoes gexecute
2478: \ T here H tcell - reloff
1.54 pazsan 2479: 2 refered
2480: 0 fillcfa
2481: ;
1.1 anton 2482:
1.103 jwilke 2483: : takeover-x-semantics ( S constructor-ghost new-ghost -- )
1.105 jwilke 2484: \g stores execution semantic and compilation semantic in the built word
1.103 jwilke 2485: \g if the word already has a semantic (concerns S", IS, .", DOES>)
2486: \g then keep it
1.105 jwilke 2487: swap >do:ghost @
2488: \ we use the >exec2 field for the semantic of a crated word,
2489: \ so predefined semantics e.g. for ....
2490: \ FIXME: find an example in the normal kernel!!!
2491: 2dup >exec @ swap >exec2 !
2492: >comp @ swap >comp ! ;
2493: \ old version of this:
1.103 jwilke 2494: \ >exec dup @ ['] NoExec =
2495: \ IF swap >do:ghost @ >exec @ swap ! ELSE 2drop THEN ;
2496:
1.52 jwilke 2497: : TCreate ( <name> -- )
2498: create-forward-warn
2499: IF ['] reswarn-forward IS resolve-warning THEN
1.103 jwilke 2500: executed-ghost @ (Theader
2501: dup >created on
2502: 2dup takeover-x-semantics hereresolve gdoes, ;
1.52 jwilke 2503:
2504: : RTCreate ( <name> -- )
2505: \ creates a new word with code-field in ram
2506: create-forward-warn
2507: IF ['] reswarn-forward IS resolve-warning THEN
2508: \ make Alias
1.103 jwilke 2509: executed-ghost @ (THeader
2510: dup >created on
2511: 2dup takeover-x-semantics
1.105 jwilke 2512: there 0 T a, H alias-mask flag!
1.103 jwilke 2513: \ store poiter to code-field
1.52 jwilke 2514: switchram T cfalign H
2515: there swap T ! H
2516: there tlastcfa !
1.103 jwilke 2517: hereresolve gdoes, ;
1.1 anton 2518:
2519: : Build: ( -- [xt] [colon-sys] )
1.52 jwilke 2520: :noname postpone TCreate ;
2521:
2522: : BuildSmart: ( -- [xt] [colon-sys] )
2523: :noname
1.53 jwilke 2524: [ T has? rom H [IF] ]
1.52 jwilke 2525: postpone RTCreate
2526: [ [ELSE] ]
2527: postpone TCreate
2528: [ [THEN] ] ;
1.1 anton 2529:
2530: : gdoes> ( ghost -- addr flag )
1.52 jwilke 2531: executed-ghost @
1.105 jwilke 2532: \ FIXME: cleanup
1.103 jwilke 2533: \ compiling? ABORT" CROSS: Executing gdoes> while compiling"
2534: \ ?! compiling? IF gexecute true EXIT THEN
1.105 jwilke 2535: g>body ( false ) ;
1.1 anton 2536:
2537: \ DO: ;DO 11may93jaw
2538: \ changed to ?EXIT 10may93jaw
2539:
1.105 jwilke 2540: : DO: ( -- ghost [xt] [colon-sys] )
1.1 anton 2541: here ghostheader
1.103 jwilke 2542: :noname postpone gdoes> ( postpone ?EXIT ) ;
1.1 anton 2543:
1.105 jwilke 2544: : by: ( -- ghost [xt] [colon-sys] ) \ name
1.103 jwilke 2545: Ghost
2546: :noname postpone gdoes> ( postpone ?EXIT ) ;
1.42 pazsan 2547:
1.105 jwilke 2548: : ;DO ( ghost [xt] [colon-sys] -- addr )
1.1 anton 2549: postpone ; ( S addr xt )
2550: over >exec ! ; immediate
2551:
1.102 jwilke 2552: : by ( -- addr ) \ Name
1.103 jwilke 2553: Ghost >do:ghost @ ;
1.1 anton 2554:
2555: >TARGET
2556: \ Variables and Constants 05dec92py
2557:
1.52 jwilke 2558: Build: ( n -- ) ;
1.103 jwilke 2559: by: :docon ( target-body-addr -- n ) T @ H ;DO
1.52 jwilke 2560: Builder (Constant)
2561:
2562: Build: ( n -- ) T , H ;
2563: by (Constant)
2564: Builder Constant
2565:
2566: Build: ( n -- ) T A, H ;
2567: by (Constant)
2568: Builder AConstant
2569:
2570: Build: ( d -- ) T , , H ;
2571: DO: ( ghost -- d ) T dup cell+ @ swap @ H ;DO
2572: Builder 2Constant
2573:
2574: BuildSmart: ;
1.103 jwilke 2575: by: :dovar ( target-body-addr -- addr ) ;DO
1.1 anton 2576: Builder Create
2577:
1.53 jwilke 2578: T has? rom H [IF]
1.103 jwilke 2579: Build: ( -- ) T here 0 A, H switchram T align here swap ! 0 , H ( switchrom ) ;
1.52 jwilke 2580: by (Constant)
2581: Builder Variable
2582: [ELSE]
1.1 anton 2583: Build: T 0 , H ;
2584: by Create
2585: Builder Variable
1.52 jwilke 2586: [THEN]
1.1 anton 2587:
1.53 jwilke 2588: T has? rom H [IF]
1.103 jwilke 2589: Build: ( -- ) T here 0 A, H switchram T align here swap ! 0 , 0 , H ( switchrom ) ;
1.54 pazsan 2590: by (Constant)
2591: Builder 2Variable
2592: [ELSE]
2593: Build: T 0 , 0 , H ;
2594: by Create
2595: Builder 2Variable
2596: [THEN]
2597:
2598: T has? rom H [IF]
1.103 jwilke 2599: Build: ( -- ) T here 0 A, H switchram T align here swap ! 0 A, H ( switchrom ) ;
1.52 jwilke 2600: by (Constant)
2601: Builder AVariable
2602: [ELSE]
1.1 anton 2603: Build: T 0 A, H ;
2604: by Create
2605: Builder AVariable
1.52 jwilke 2606: [THEN]
1.1 anton 2607:
1.3 pazsan 2608: \ User variables 04may94py
2609:
2610: >CROSS
1.78 jwilke 2611:
1.3 pazsan 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:
1.3 pazsan 2623: >TARGET
2624:
1.78 jwilke 2625: Build: 0 u, X , ;
2626: by: :douser ( ghost -- up-addr ) X @ tup @ + ;DO
1.1 anton 2627: Builder User
2628:
1.78 jwilke 2629: Build: 0 u, X , 0 u, drop ;
1.3 pazsan 2630: by User
1.1 anton 2631: Builder 2User
2632:
1.78 jwilke 2633: Build: 0 au, X , ;
1.3 pazsan 2634: by User
1.1 anton 2635: Builder AUser
2636:
1.52 jwilke 2637: BuildSmart: T , H ;
1.44 pazsan 2638: by (Constant)
1.1 anton 2639: Builder Value
2640:
1.52 jwilke 2641: BuildSmart: T A, H ;
1.44 pazsan 2642: by (Constant)
1.32 pazsan 2643: Builder AValue
2644:
1.103 jwilke 2645: Defer texecute
2646:
1.52 jwilke 2647: BuildSmart: ( -- ) [T'] noop T A, H ;
1.103 jwilke 2648: by: :dodefer ( ghost -- ) X @ texecute ;DO
1.1 anton 2649: Builder Defer
1.37 pazsan 2650:
1.78 jwilke 2651: Build: ( inter comp -- ) swap T immediate A, A, H ;
1.37 pazsan 2652: DO: ( ghost -- ) ABORT" CROSS: Don't execute" ;DO
1.38 anton 2653: Builder interpret/compile:
1.24 pazsan 2654:
2655: \ Sturctures 23feb95py
2656:
2657: >CROSS
2658: : nalign ( addr1 n -- addr2 )
2659: \ addr2 is the aligned version of addr1 wrt the alignment size n
2660: 1- tuck + swap invert and ;
2661: >TARGET
2662:
1.44 pazsan 2663: Build: ;
2664: by: :dofield T @ H + ;DO
2665: Builder (Field)
2666:
1.51 anton 2667: Build: ( align1 offset1 align size "name" -- align2 offset2 )
2668: rot dup T , H ( align1 align size offset1 )
2669: + >r nalign r> ;
1.44 pazsan 2670: by (Field)
1.24 pazsan 2671: Builder Field
2672:
1.51 anton 2673: : struct T 1 chars 0 H ;
1.24 pazsan 2674: : end-struct T 2Constant H ;
2675:
1.52 jwilke 2676: : cell% ( n -- size align )
1.51 anton 2677: T 1 cells H dup ;
1.88 pazsan 2678:
1.105 jwilke 2679: \ Input-Methods 01py
1.103 jwilke 2680:
1.91 pazsan 2681: Build: ( m v -- m' v ) dup T , cell+ H ;
1.88 pazsan 2682: DO: abort" Not in cross mode" ;DO
2683: Builder input-method
2684:
2685: Build: ( m v size -- m v' ) over T , H + ;
2686: DO: abort" Not in cross mode" ;DO
2687: Builder input-var
1.24 pazsan 2688:
1.102 jwilke 2689:
2690:
1.103 jwilke 2691:
1.52 jwilke 2692: \ structural conditionals 17dec92py
2693:
2694: >CROSS
1.103 jwilke 2695: : (ncontrols?) ( n -- )
2696: \g We expect n open control structures
2697: depth over u<=
2698: ABORT" CROSS: unstructured, stack underflow"
2699: 0 ?DO I pick 0=
2700: ABORT" CROSS: unstructured"
2701: LOOP ; ' (ncontrols?) plugin-of ncontrols?
2702:
2703: \ : ?struc ( flag -- ) ABORT" CROSS: unstructured " ;
2704: \ : sys? ( sys -- sys ) dup 0= ?struc ;
2705:
1.52 jwilke 2706: : >mark ( -- sys ) T here ( dup ." M" hex. ) 0 , H ;
2707:
1.78 jwilke 2708: : branchoffset ( src dest -- ) - tchar / ; \ ?? jaw
1.52 jwilke 2709:
1.78 jwilke 2710: : >resolve ( sys -- )
2711: X here ( dup ." >" hex. ) over branchoffset swap X ! ;
1.52 jwilke 2712:
1.78 jwilke 2713: : <resolve ( sys -- )
2714: X here ( dup ." <" hex. ) branchoffset X , ;
1.52 jwilke 2715:
1.78 jwilke 2716: :noname compile branch X here branchoffset X , ;
1.54 pazsan 2717: IS branch, ( target-addr -- )
1.78 jwilke 2718: :noname compile ?branch X here branchoffset X , ;
1.54 pazsan 2719: IS ?branch, ( target-addr -- )
2720: :noname compile branch T here 0 , H ;
2721: IS branchmark, ( -- branchtoken )
2722: :noname compile ?branch T here 0 , H ;
2723: IS ?branchmark, ( -- branchtoken )
2724: :noname T here 0 , H ;
2725: IS ?domark, ( -- branchtoken )
1.78 jwilke 2726: :noname dup X @ ?struc X here over branchoffset swap X ! ;
1.54 pazsan 2727: IS branchtoresolve, ( branchtoken -- )
1.78 jwilke 2728: :noname branchto, X here ;
1.54 pazsan 2729: IS branchtomark, ( -- target-addr )
1.52 jwilke 2730:
2731: >TARGET
2732:
2733: \ Structural Conditionals 12dec92py
2734:
1.103 jwilke 2735: \ CLEANUP Cond: BUT sys? swap ;Cond
2736: \ CLEANUP Cond: YET sys? dup ;Cond
1.52 jwilke 2737:
2738: >CROSS
2739:
1.78 jwilke 2740: Variable tleavings 0 tleavings !
1.52 jwilke 2741:
1.54 pazsan 2742: : (done) ( addr -- )
2743: tleavings @
2744: BEGIN dup
2745: WHILE
2746: >r dup r@ cell+ @ \ address of branch
2747: u> 0= \ lower than DO?
2748: WHILE
2749: r@ 2 cells + @ \ branch token
2750: branchtoresolve,
2751: r@ @ r> free throw
2752: REPEAT r> THEN
2753: tleavings ! drop ;
2754:
1.53 jwilke 2755: >TARGET
2756:
1.103 jwilke 2757: \ What for? ANS? JAW Cond: DONE ( addr -- ) (done) ;Cond
1.53 jwilke 2758:
2759: >CROSS
1.54 pazsan 2760: : (leave) ( branchtoken -- )
1.53 jwilke 2761: 3 cells allocate throw >r
2762: T here H r@ cell+ !
2763: r@ 2 cells + !
2764: tleavings @ r@ !
2765: r> tleavings ! ;
2766: >TARGET
2767:
1.103 jwilke 2768: : (leave,) ( -- )
2769: branchmark, (leave) ; ' (leave,) plugin-of leave,
2770:
2771: : (?leave,) ( -- )
2772: compile 0= ?branchmark, (leave) ; ' (?leave,) plugin-of ?leave,
2773:
2774: Cond: LEAVE leave, ;Cond
2775: Cond: ?LEAVE ?leave, ;Cond
1.53 jwilke 2776:
1.54 pazsan 2777: >CROSS
2778: \ !!JW ToDo : Move to general tools section
2779:
2780: : to1 ( x1 x2 xn n -- addr )
1.103 jwilke 2781: \G packs n stack elements in am allocated memory region
1.54 pazsan 2782: dup dup 1+ cells allocate throw dup >r swap 1+
2783: 0 DO tuck ! cell+ LOOP
2784: drop r> ;
1.103 jwilke 2785:
1.54 pazsan 2786: : 1to ( addr -- x1 x2 xn )
2787: \G unpacks the elements saved by to1
2788: dup @ swap over cells + swap
2789: 0 DO dup @ swap 1 cells - LOOP
2790: free throw ;
2791:
2792: : loop] branchto, dup <resolve tcell - (done) ;
2793:
2794: : skiploop] ?dup IF branchto, branchtoresolve, THEN ;
2795:
2796: >TARGET
2797:
1.52 jwilke 2798: \ Structural Conditionals 12dec92py
2799:
1.103 jwilke 2800: : (cs-swap) ( x1 x2 -- x2 x1 )
2801: swap ; ' (cs-swap) plugin-of cs-swap
2802:
2803: : (ahead,) branchmark, ; ' (ahead,) plugin-of ahead,
2804:
2805: : (if,) ?branchmark, ; ' (if,) plugin-of if,
2806:
2807: : (then,) branchto, branchtoresolve, ; ' (then,) plugin-of then,
2808:
2809: : (else,) ( ahead ) branchmark,
2810: swap
2811: ( then ) branchto, branchtoresolve, ; ' (else,) plugin-of else,
2812:
2813: : (begin,) branchtomark, ; ' (begin,) plugin-of begin,
2814:
2815: : (while,) ( if ) ?branchmark,
2816: swap ; ' (while,) plugin-of while,
2817:
2818: : (again,) branch, ; ' (again,) plugin-of again,
2819:
2820: : (until,) ?branch, ; ' (until,) plugin-of until,
2821:
2822: : (repeat,) ( again ) branch,
2823: ( then ) branchto, branchtoresolve, ; ' (repeat,) plugin-of repeat,
2824:
2825: : (case,) ( -- n )
2826: 0 ; ' (case,) plugin-of case,
2827:
2828: : (of,) ( n -- x1 n )
2829: 1+ >r
2830: compile over compile =
2831: if, compile drop r> ; ' (of,) plugin-of of,
2832:
2833: : (endof,) ( x1 n -- x2 n )
2834: >r 1 ncontrols? else, r> ; ' (endof,) plugin-of endof,
2835:
2836: : (endcase,) ( x1 .. xn n -- )
2837: compile drop 0 ?DO 1 ncontrols? then, LOOP ; ' (endcase,) plugin-of endcase,
2838:
1.53 jwilke 2839: >TARGET
1.103 jwilke 2840: Cond: AHEAD ahead, ;Cond
2841: Cond: IF if, ;Cond
2842: Cond: THEN 1 ncontrols? then, ;Cond
2843: Cond: ENDIF 1 ncontrols? then, ;Cond
2844: Cond: ELSE 1 ncontrols? else, ;Cond
2845:
2846: Cond: BEGIN begin, ;Cond
2847: Cond: WHILE 1 ncontrols? while, ;Cond
2848: Cond: AGAIN 1 ncontrols? again, ;Cond
2849: Cond: UNTIL 1 ncontrols? until, ;Cond
2850: Cond: REPEAT 2 ncontrols? repeat, ;Cond
2851:
2852: Cond: CASE case, ;Cond
2853: Cond: OF of, ;Cond
2854: Cond: ENDOF endof, ;Cond
2855: Cond: ENDCASE endcase, ;Cond
1.1 anton 2856:
2857: \ Structural Conditionals 12dec92py
2858:
1.103 jwilke 2859: : (do,) ( -- target-addr )
2860: \ ?? i think 0 is too much! jaw
1.54 pazsan 2861: 0 compile (do)
1.103 jwilke 2862: branchtomark, 2 to1 ; ' (do,) plugin-of do,
1.54 pazsan 2863:
1.103 jwilke 2864: \ alternative for if no ?do
2865: \ : (do,)
1.54 pazsan 2866: \ compile 2dup compile = compile IF
2867: \ compile 2drop compile ELSE
2868: \ compile (do) branchtomark, 2 to1 ;
2869:
1.103 jwilke 2870: : (?do,) ( -- target-addr )
1.54 pazsan 2871: 0 compile (?do) ?domark, (leave)
1.103 jwilke 2872: branchtomark, 2 to1 ; ' (?do,) plugin-of ?do,
2873:
2874: : (for,) ( -- target-addr )
2875: compile (for) branchtomark, ; ' (for,) plugin-of for,
2876:
2877: : (loop,) ( target-addr -- )
2878: 1to compile (loop) loop]
2879: compile unloop skiploop] ; ' (loop,) plugin-of loop,
2880:
2881: : (+loop,) ( target-addr -- )
2882: 1to compile (+loop) loop]
2883: compile unloop skiploop] ; ' (+loop,) plugin-of +loop,
2884:
2885: : (next,)
2886: compile (next) loop] compile unloop ; ' (next,) plugin-of next,
2887:
2888: Cond: DO do, ;Cond
2889: Cond: ?DO ?do, ;Cond
2890: Cond: FOR for, ;Cond
2891:
2892: Cond: LOOP 1 ncontrols? loop, ;Cond
2893: Cond: +LOOP 1 ncontrols? +loop, ;Cond
2894: Cond: NEXT 1 ncontrols? next, ;Cond
1.52 jwilke 2895:
1.1 anton 2896: \ String words 23feb93py
2897:
1.103 jwilke 2898: : ," [char] " parse ht-string, X align ;
1.1 anton 2899:
1.103 jwilke 2900: Cond: ." compile (.") T ," H ;Cond
2901: Cond: S" compile (S") T ," H ;Cond
2902: Cond: C" compile (C") T ," H ;Cond
2903: Cond: ABORT" compile (ABORT") T ," H ;Cond
1.1 anton 2904:
2905: Cond: IS T ' >body H compile ALiteral compile ! ;Cond
1.66 pazsan 2906: : IS T >address ' >body ! H ;
1.9 pazsan 2907: Cond: TO T ' >body H compile ALiteral compile ! ;Cond
2908: : TO T ' >body ! H ;
1.1 anton 2909:
1.52 jwilke 2910: Cond: defers T ' >body @ compile, H ;Cond
2911:
1.1 anton 2912: \ LINKED ERR" ENV" 2ENV" 18may93jaw
2913:
2914: \ linked list primitive
1.79 jwilke 2915: : linked X here over X @ X A, swap X ! ;
1.52 jwilke 2916: : chained T linked A, H ;
1.1 anton 2917:
2918: : err" s" ErrLink linked" evaluate T , H
1.103 jwilke 2919: [char] " parse ht-string, X align ;
1.1 anton 2920:
2921: : env" [char] " parse s" EnvLink linked" evaluate
1.103 jwilke 2922: ht-string, X align X , ;
1.1 anton 2923:
2924: : 2env" [char] " parse s" EnvLink linked" evaluate
1.103 jwilke 2925: here >r ht-string, X align X , X ,
1.1 anton 2926: r> dup T c@ H 80 and swap T c! H ;
2927:
2928: \ compile must be last 22feb93py
2929:
1.103 jwilke 2930: Cond: [compile] ( -- ) \ name
2931: \g For immediate words, works even if forward reference
2932: bl word gfind 0= ABORT" CROSS: Can't compile"
2933: (gexecute) ;Cond
2934:
2935: Cond: postpone ( -- ) \ name
2936: bl word gfind 0= ABORT" CROSS: Can't compile"
2937: dup >magic @ <fwd> =
2938: ABORT" CROSS: Can't postpone on forward declaration"
2939: dup >magic @ <imm> =
2940: IF (gexecute)
2941: ELSE compile (compile) addr, THEN ;Cond
1.54 pazsan 2942:
1.77 jwilke 2943: \ save-cross 17mar93py
2944:
2945: hex
2946:
2947: >CROSS
2948: Create magic s" Gforth2x" here over allot swap move
2949:
2950: bigendian 1+ \ strangely, in magic big=0, little=1
2951: tcell 1 = 0 and or
2952: tcell 2 = 2 and or
2953: tcell 4 = 4 and or
2954: tcell 8 = 6 and or
2955: tchar 1 = 00 and or
2956: tchar 2 = 28 and or
2957: tchar 4 = 50 and or
2958: tchar 8 = 78 and or
2959: magic 7 + c!
2960:
2961: : save-cross ( "image-name" "binary-name" -- )
2962: bl parse ." Saving to " 2dup type cr
2963: w/o bin create-file throw >r
2964: TNIL IF
1.80 anton 2965: s" #! " r@ write-file throw
2966: bl parse r@ write-file throw
2967: s" --image-file" r@ write-file throw
1.77 jwilke 2968: #lf r@ emit-file throw
2969: r@ dup file-position throw drop 8 mod 8 swap ( file-id limit index )
2970: ?do
2971: bl over emit-file throw
2972: loop
2973: drop
2974: magic 8 r@ write-file throw \ write magic
2975: ELSE
2976: bl parse 2drop
2977: THEN
2978: image @ there
2979: r@ write-file throw \ write image
2980: TNIL IF
2981: bit$ @ there 1- tcell>bit rshift 1+
2982: r@ write-file throw \ write tags
2983: THEN
2984: r> close-file throw ;
2985:
2986: : save-region ( addr len -- )
2987: bl parse w/o bin create-file throw >r
2988: swap >image swap r@ write-file throw
2989: r> close-file throw ;
2990:
1.103 jwilke 2991: 1 [IF]
2992:
2993: Variable name-ptr
2994: Create name-buf 200 chars allot
2995: : init-name-buf name-buf name-ptr ! ;
2996: : nb, name-ptr @ c! 1 chars name-ptr +! ;
2997: : $nb, ( adr len -- ) bounds ?DO I c@ nb, LOOP ;
2998: : @nb name-ptr @ name-buf tuck - ;
2999:
3000: \ stores a usefull string representation of the character
3001: \ in the name buffer
3002: : name-char, ( c -- )
3003: dup 'a 'z 1+ within IF nb, EXIT THEN
3004: dup 'A 'Z 1+ within IF $20 + nb, EXIT THEN
3005: dup '0 '9 1+ within IF nb, EXIT THEN
3006: CASE '+ OF s" _PLUS" $nb, ENDOF
3007: '- OF s" _MINUS" $nb, ENDOF
3008: '* OF s" _STAR" $nb, ENDOF
3009: '/ OF s" _SLASH" $nb, ENDOF
3010: '' OF s" _TICK" $nb, ENDOF
3011: '( OF s" _OPAREN" $nb, ENDOF
3012: ') OF s" _CPAREN" $nb, ENDOF
3013: '[ OF s" _OBRACKET" $nb, ENDOF
3014: '] OF s" _CBRACKET" $nb, ENDOF
3015: '! OF s" _STORE" $nb, ENDOF
3016: '@ OF s" _FETCH" $nb, ENDOF
3017: '> OF s" _GREATER" $nb, ENDOF
3018: '< OF s" _LESS" $nb, ENDOF
3019: '= OF s" _EQUAL" $nb, ENDOF
3020: '# OF s" _HASH" $nb, ENDOF
3021: '? OF s" _QUEST" $nb, ENDOF
3022: ': OF s" _COL" $nb, ENDOF
3023: '; OF s" _SEMICOL" $nb, ENDOF
3024: ', OF s" _COMMA" $nb, ENDOF
3025: '. OF s" _DOT" $nb, ENDOF
3026: '" OF s" _DQUOT" $nb, ENDOF
3027: dup
3028: base @ >r hex s>d <# #s 'X hold '_ hold #> $nb, r> base !
3029: ENDCASE ;
3030:
3031: : label-from-ghostname ( ghost -- addr len )
3032: dup >ghostname init-name-buf 'L nb, bounds
3033: ?DO I c@ name-char, LOOP
3034: \ we add the address to a name to make in unique
3035: \ because one name may appear more then once
3036: \ there are names (e.g. boot) that may be reference from other
3037: \ assembler source files, so we declare them as unique
3038: \ and don't add the address suffix
3039: dup >ghost-flags @ <unique> and 0=
3040: IF s" __" $nb, >link @ base @ >r hex 0 <# #s 'L hold #> r> base ! $nb,
3041: ELSE drop
3042: THEN
3043: @nb ;
3044:
3045: : label-from-ghostnameXX ( ghost -- addr len )
3046: \ same as (label-from-ghostname) but caches generated names
3047: dup >asm-name @ ?dup IF nip count EXIT THEN
3048: \ dup >r (label-from-ghostname) 2dup
3049: align here >r string, align
3050: r> r> >asm-name ! ;
3051:
3052: : primghostdiscover ( xt -- ghost true | xt false )
3053: dup 0= IF false EXIT THEN
3054: >r last-prim-ghost
3055: BEGIN @ dup
3056: WHILE dup >asm-dummyaddr @ r@ =
3057: IF rdrop true EXIT THEN
3058: REPEAT
3059: drop r> false ;
3060:
3061: : gdiscover2 ( xt -- ghost true | xt false )
3062: dup taddr>region 0= IF false EXIT THEN
3063: dup (>regiontype) @ dup 0= IF drop false EXIT THEN
3064: addr-xt-ghost @ dup 0= IF drop false EXIT THEN
3065: nip true ;
3066: \ dup >ghost-name @ IF nip true ELSE drop false THEN ;
3067:
3068: \ generates a label name for the target address
3069: : generate-label-name ( taddr -- addr len )
3070: gdiscover2
3071: IF dup >magic @ <do:> =
3072: IF >asm-name @ count EXIT THEN
3073: label-from-ghostname
3074: ELSE
3075: primghostdiscover
3076: IF >asm-name @ count
3077: ELSE base @ >r hex 0 <# #s 'L hold #> r> base !
3078: THEN
3079: THEN ;
3080:
3081: Variable outfile-fd
3082:
3083: : $out ( adr len -- ) outfile-fd @ write-file throw ;
3084: : nlout newline $out ;
3085: : .ux ( n -- )
3086: base @ hex swap 0 <# #S #> $out base ! ;
3087:
3088: : save-asm-region-part-aligned ( taddr len -- 'taddr 'len )
3089: dup cell/ 0
3090: ?DO nlout s" .word " $out over @relbit
3091: IF over X @ generate-label-name $out
3092: ELSE over X @ s" 0x0" $out .ux
3093: THEN
3094: tcell /string
3095: LOOP ;
3096:
3097: : print-bytes ( taddr len n -- taddr' len' )
3098: over min dup 0>
3099: IF nlout s" .byte " $out 0
3100: ?DO I 0> IF s" , " $out THEN
3101: over X c@ s" 0x0" $out .ux 1 /string
3102: LOOP
3103: THEN ;
3104:
3105: : save-asm-region-part ( addr len -- )
3106: over dup X aligned swap - ?dup
3107: IF print-bytes THEN
3108: save-asm-region-part-aligned
3109: dup dup X aligned swap - ?dup
3110: IF 2 pick @relbit ABORT" relocated field splitted"
3111: print-bytes
3112: THEN
3113: 2drop ;
3114:
3115: : print-label ( taddr -- )
3116: nlout generate-label-name $out s" :" $out ;
3117:
3118: : snl-calc ( taddr taddr2 -- )
3119: tuck over - ;
3120:
3121: : skip-nolables ( taddr -- taddr2 taddr len )
3122: \G skips memory region where no lables are defined
3123: \G starting from taddr+1
3124: \G Labels will be introduced for each reference mark
3125: \G in addr-refs.
3126: \G This word deals with lables at byte addresses as well.
3127: \G The main idea is to have an intro part which
3128: \G skips until the next cell boundary, the middle part
3129: \G which skips whole cells very efficiently and the third
3130: \G part which skips the bytes to the label in a cell
3131: dup 1+ dup (>regiontype)
3132: ( S taddr taddr-realstart type-addr )
3133: dup @ dup IF addr-refs @ THEN
3134: swap >r
3135: over align+ tuck tcell swap - rshift swap 0
3136: DO dup 1 and
3137: IF drop rdrop snl-calc UNLOOP EXIT THEN
3138: 2/ swap 1+ swap
3139: LOOP
3140: drop r> cell+
3141: ( S .. taddr2 type-addr ) dup
3142: BEGIN dup @ dup IF addr-refs @ THEN 0= WHILE cell+ REPEAT
3143: dup >r swap - 1 cells / tcell * + r>
3144: ( S .. taddr2+skiplencells type-addr )
3145: @ addr-refs @ 1 tcell lshift or
3146: BEGIN dup 1 and 0= WHILE swap 1+ swap 2/ REPEAT drop
3147: ( S .. taddr2+skiplencells+skiplenbytes )
3148: snl-calc ;
3149:
3150: : insert-label ( taddr -- )
3151: dup 0= IF drop EXIT THEN
3152: \ ignore everything which points outside our memory regions
3153: \ maybe a primitive pointer or whatever
3154: dup taddr>region 0= IF drop EXIT THEN
3155: dup >r (>regiontype) define-addr-struct addr-refs dup @
3156: r> tcell 1- and 1 swap lshift or swap ! ;
3157:
3158: \ this generates a sorted list of addresses which must be labels
3159: \ it scans therefore a whole region
3160: : generate-label-list-region ( taddr len -- )
3161: BEGIN over @relbit IF over X @ insert-label THEN
3162: tcell /string dup 0<
3163: UNTIL 2drop ;
3164:
3165: : generate-label-list ( -- )
3166: region-link
3167: BEGIN @ dup WHILE
3168: dup 0 >rlink - extent
3169: ?dup IF generate-label-list-region ELSE drop THEN
3170: REPEAT drop ;
3171:
3172: : create-outfile ( addr len -- )
3173: w/o bin create-file throw outfile-fd ! ;
3174:
3175: : close-outfile ( -- )
3176: outfile-fd @ close-file throw ;
3177:
3178: : (save-asm-region) ( region -- )
3179: \ ." label list..."
3180: generate-label-list
3181: \ ." ok!" cr
3182: extent ( S taddr len )
3183: over insert-label
3184: 2dup + dup insert-label >r ( R end-label )
3185: ( S taddr len ) drop
3186: BEGIN
3187: dup print-label
3188: dup r@ <> WHILE
3189: skip-nolables save-asm-region-part
3190: REPEAT drop rdrop ;
3191:
3192: : lineout ( addr len -- )
3193: outfile-fd @ write-line throw ;
3194:
3195: : save-asm-region ( region adr len -- )
3196: create-outfile (save-asm-region) close-outfile ;
3197:
3198: [THEN]
3199:
1.54 pazsan 3200: \ \ minimal definitions
3201:
1.77 jwilke 3202: >MINIMAL also minimal
3203:
1.1 anton 3204: \ Usefull words 13feb93py
3205:
3206: : KB 400 * ;
3207:
1.54 pazsan 3208: \ \ [IF] [ELSE] [THEN] ... 14sep97jaw
3209:
3210: \ it is useful to define our own structures and not to rely
3211: \ on the words in the compiler
3212: \ The words in the compiler might be defined with vocabularies
3213: \ this doesn't work with our self-made compile-loop
3214:
3215: Create parsed 20 chars allot \ store word we parsed
3216:
3217: : upcase
3218: parsed count bounds
3219: ?DO I c@ toupper I c! LOOP ;
3220:
3221: : [ELSE]
3222: 1 BEGIN
3223: BEGIN bl word count dup WHILE
1.77 jwilke 3224: comment? 20 umin parsed place upcase parsed count
1.54 pazsan 3225: 2dup s" [IF]" compare 0= >r
3226: 2dup s" [IFUNDEF]" compare 0= >r
3227: 2dup s" [IFDEF]" compare 0= r> or r> or
3228: IF 2drop 1+
3229: ELSE 2dup s" [ELSE]" compare 0=
3230: IF 2drop 1- dup
3231: IF 1+
3232: THEN
3233: ELSE
3234: 2dup s" [ENDIF]" compare 0= >r
3235: s" [THEN]" compare 0= r> or
3236: IF 1- THEN
3237: THEN
3238: THEN
3239: ?dup 0= ?EXIT
3240: REPEAT
3241: 2drop refill 0=
3242: UNTIL drop ; immediate
3243:
3244: : [THEN] ( -- ) ; immediate
3245:
3246: : [ENDIF] ( -- ) ; immediate
3247:
3248: : [IF] ( flag -- )
3249: 0= IF postpone [ELSE] THEN ; immediate
3250:
3251: Cond: [IF] postpone [IF] ;Cond
3252: Cond: [THEN] postpone [THEN] ;Cond
3253: Cond: [ELSE] postpone [ELSE] ;Cond
3254:
1.1 anton 3255: \ define new [IFDEF] and [IFUNDEF] 20may93jaw
3256:
1.77 jwilke 3257: : defined? tdefined? ;
1.44 pazsan 3258: : needed? needed? ;
3259: : doer? doer? ;
1.1 anton 3260:
1.52 jwilke 3261: \ we want to use IFDEF on compiler directives (e.g. E?) in the source, too
3262:
3263: : directive?
1.77 jwilke 3264: bl word count [ ' target >wordlist ] literal search-wordlist
1.52 jwilke 3265: dup IF nip THEN ;
3266:
3267: : [IFDEF] >in @ directive? swap >in !
1.77 jwilke 3268: 0= IF tdefined? ELSE name 2drop true THEN
1.52 jwilke 3269: postpone [IF] ;
3270:
1.77 jwilke 3271: : [IFUNDEF] tdefined? 0= postpone [IF] ;
1.1 anton 3272:
1.54 pazsan 3273: Cond: [IFDEF] postpone [IFDEF] ;Cond
3274:
3275: Cond: [IFUNDEF] postpone [IFUNDEF] ;Cond
3276:
1.1 anton 3277: \ C: \- \+ Conditional Compiling 09jun93jaw
3278:
1.77 jwilke 3279: : C: >in @ tdefined? 0=
3280: IF >in ! X :
1.1 anton 3281: ELSE drop
3282: BEGIN bl word dup c@
3283: IF count comment? s" ;" compare 0= ?EXIT
3284: ELSE refill 0= ABORT" CROSS: Out of Input while C:"
3285: THEN
3286: AGAIN
3287: THEN ;
3288:
1.74 jwilke 3289: : d? d? ;
3290:
3291: \G doesn't skip line when debug switch is on
3292: : \D D? 0= IF postpone \ THEN ;
1.52 jwilke 3293:
1.48 anton 3294: \G interprets the line if word is not defined
1.77 jwilke 3295: : \- tdefined? IF postpone \ THEN ;
1.48 anton 3296:
3297: \G interprets the line if word is defined
1.77 jwilke 3298: : \+ tdefined? 0= IF postpone \ THEN ;
1.1 anton 3299:
1.48 anton 3300: Cond: \- \- ;Cond
3301: Cond: \+ \+ ;Cond
1.52 jwilke 3302: Cond: \D \D ;Cond
1.48 anton 3303:
3304: : ?? bl word find IF execute ELSE drop 0 THEN ;
3305:
3306: : needed:
3307: \G defines ghost for words that we want to be compiled
1.103 jwilke 3308: BEGIN >in @ bl word c@ WHILE >in ! Ghost drop REPEAT drop ;
1.48 anton 3309:
1.1 anton 3310: \ words that should be in minimal
1.52 jwilke 3311:
3312: create s-buffer 50 chars allot
3313:
1.77 jwilke 3314: bigendian Constant bigendian
1.1 anton 3315:
1.52 jwilke 3316: : here there ;
1.67 jwilke 3317: : equ constant ;
3318: : mark there constant ;
1.54 pazsan 3319:
3320: \ compiler directives
1.52 jwilke 3321: : >ram >ram ;
3322: : >rom >rom ;
3323: : >auto >auto ;
3324: : >tempdp >tempdp ;
3325: : tempdp> tempdp> ;
3326: : const constflag on ;
1.103 jwilke 3327:
3328: : Redefinitions-start
3329: \G Starts a redefinition section. Warnings are disabled and
3330: \G existing ghosts are reused. This is used in the kernel
3331: \G where ( and \ and the like are redefined
3332: twarnings off warnings off reuse-ghosts on ;
3333:
3334: : Redefinitions-end
3335: \G Ends a redefinition section. Warnings are enabled again.
3336: twarnings on warnings on reuse-ghosts off ;
3337:
3338: : warnings name 3 =
3339: IF twarnings off warnings off ELSE twarnings on warnings on THEN drop ;
1.102 jwilke 3340:
1.60 anton 3341: : | ;
3342: \ : | NoHeaderFlag on ; \ This is broken (damages the last word)
1.52 jwilke 3343:
1.48 anton 3344: : save-cross save-cross ;
1.52 jwilke 3345: : save-region save-region ;
3346: : tdump swap >image swap dump ;
3347:
1.48 anton 3348: also forth
1.52 jwilke 3349: [IFDEF] Label : Label defempty? Label ; [THEN]
3350: [IFDEF] start-macros : start-macros defempty? start-macros ; [THEN]
1.77 jwilke 3351: \ [IFDEF] builttag : builttag builttag ; [THEN]
1.48 anton 3352: previous
3353:
1.52 jwilke 3354: : s" [char] " parse s-buffer place s-buffer count ; \ for environment?
1.43 pazsan 3355: : + + ;
1.52 jwilke 3356: : 1+ 1 + ;
3357: : 2+ 2 + ;
1.43 pazsan 3358: : 1- 1- ;
3359: : - - ;
1.52 jwilke 3360: : and and ;
3361: : or or ;
1.43 pazsan 3362: : 2* 2* ;
3363: : * * ;
3364: : / / ;
3365: : dup dup ;
3366: : over over ;
3367: : swap swap ;
3368: : rot rot ;
3369: : drop drop ;
3370: : = = ;
3371: : 0= 0= ;
3372: : lshift lshift ;
3373: : 2/ 2/ ;
1.103 jwilke 3374: \ : . . ;
1.1 anton 3375:
1.79 jwilke 3376: : all-words ['] forced? IS skip? ;
1.43 pazsan 3377: : needed-words ['] needed? IS skip? ;
1.75 jwilke 3378: : undef-words ['] defined2? IS skip? ;
3379: : skipdef skipdef ;
1.1 anton 3380:
1.40 pazsan 3381: : \ postpone \ ; immediate
1.47 pazsan 3382: : \G T-\G ; immediate
1.40 pazsan 3383: : ( postpone ( ; immediate
1.1 anton 3384: : include bl word count included ;
1.103 jwilke 3385: : included swap >image swap included ;
1.52 jwilke 3386: : require require ;
1.103 jwilke 3387: : needs require ;
1.1 anton 3388: : .( [char] ) parse type ;
1.52 jwilke 3389: : ." [char] " parse type ;
1.1 anton 3390: : cr cr ;
3391:
1.77 jwilke 3392: : times 0 ?DO dup X c, LOOP drop ; \ used for space table creation
3393:
3394: \ only forth also cross also minimal definitions order
1.1 anton 3395:
3396: \ cross-compiler words
3397:
1.103 jwilke 3398: : decimal decimal [g'] decimal >exec2 @ ?dup IF EXECUTE THEN ;
3399: : hex hex [g'] hex >exec2 @ ?dup IF EXECUTE THEN ;
1.1 anton 3400:
1.77 jwilke 3401: \ : tudp X tudp ;
3402: \ : tup X tup ;
3403:
3404: : doc-off false to-doc ! ;
3405: : doc-on true to-doc ! ;
1.39 pazsan 3406:
1.103 jwilke 3407: : declareunique ( "name" -- )
3408: \G Sets the unique flag for a ghost. The assembler output
3409: \G generates labels with the ghostname concatenated with the address
3410: \G while cross-compiling. The address is concatenated
3411: \G because we have double occurences of the same name.
3412: \G If we want to reference the labels from the assembler or C
3413: \G code we declare them unique, so the address is skipped.
3414: Ghost >ghost-flags dup @ <unique> or swap ! ;
3415:
3416: \ [IFDEF] dbg : dbg dbg ; [THEN]
1.39 pazsan 3417:
1.1 anton 3418: \ for debugging...
1.103 jwilke 3419: \ : dbg dbg ;
3420: : horder order ;
3421: : hwords words ;
3422: \ : words also ghosts
3423: \ words previous ;
1.105 jwilke 3424: : .s .s ;
1.1 anton 3425: : bye bye ;
1.99 pazsan 3426:
1.103 jwilke 3427: \ dummy
3428: : group 0 word drop ;
3429:
1.1 anton 3430: \ turnkey direction
3431: : H forth ; immediate
3432: : T minimal ; immediate
3433: : G ghosts ; immediate
3434:
3435:
3436: \ these ones are pefered:
3437:
1.74 jwilke 3438: : unlock previous forth also cross ;
1.52 jwilke 3439:
1.77 jwilke 3440: \ also minimal
1.103 jwilke 3441: >cross
3442:
3443: : turnkey
3444: ghosts-wordlist 1 set-order
3445: also target definitions
3446: also Minimal also ;
3447:
3448: >minimal
3449:
3450: : [[+++
3451: turnkey unlock ;
1.1 anton 3452:
3453: unlock definitions also minimal
1.77 jwilke 3454:
1.103 jwilke 3455: : lock turnkey ;
3456:
3457: Defer +++]]-hook
3458: : +++]] +++]]-hook lock ;
3459:
3460: LOCK
1.77 jwilke 3461: \ load cross compiler extension defined in mach file
3462:
3463: UNLOCK >CROSS
3464:
3465: [IFDEF] extend-cross extend-cross [THEN]
3466:
3467: LOCK
1.103 jwilke 3468:
3469:
3470:
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