File:
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cross.fs
Revision
1.113:
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Wed Sep 12 14:45:38 2001 UTC (22 years, 6 months ago) by
jwilke
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CVS tags:
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Image starts at $100 for cross-compilation now. A NULL-reference
is really a reference to address 0 and NIL is 0.
In the kernel image-header to get the headers address.
Image loading is only changed minimal: The stuff with fixed
addressed images is thrown out, because every image is relocatable.
No header change. Old images should work.
1: \ CROSS.FS The Cross-Compiler 06oct92py
2: \ Idea and implementation: Bernd Paysan (py)
3:
4: \ Copyright (C) 1995,1996,1997,1998,1999,2000 Free Software Foundation, Inc.
5:
6: \ This file is part of Gforth.
7:
8: \ Gforth is free software; you can redistribute it and/or
9: \ modify it under the terms of the GNU General Public License
10: \ as published by the Free Software Foundation; either version 2
11: \ of the License, or (at your option) any later version.
12:
13: \ This program is distributed in the hope that it will be useful,
14: \ but WITHOUT ANY WARRANTY; without even the implied warranty of
15: \ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16: \ GNU General Public License for more details.
17:
18: \ You should have received a copy of the GNU General Public License
19: \ along with this program; if not, write to the Free Software
20: \ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
21:
22: 0
23: [IF]
24:
25: ToDo:
26: - Crossdoc destination ./doc/crossdoc.fd makes no sense when
27: cross.fs is used seperately. jaw
28: - Do we need this char translation with >address and in branchoffset?
29: (>body also affected) jaw
30: - MAXU etc. can be done with dlit,
31:
32: [THEN]
33:
34: hex
35:
36: \ debugging for compiling
37:
38: \ print stack at each colon definition
39: \ : : save-input cr bl word count type restore-input throw .s : ;
40:
41: \ print stack at each created word
42: \ : create save-input cr bl word count type restore-input throw .s create ;
43:
44:
45: \ \ ------------- Setup Vocabularies
46:
47: \ Remark: Vocabulary is not ANS, but it should work...
48:
49: Vocabulary Cross
50: Vocabulary Target
51: Vocabulary Ghosts
52: Vocabulary Minimal
53: only Forth also Target also also
54: definitions Forth
55:
56: : T previous Ghosts also Target ; immediate
57: : G Ghosts ; immediate
58: : H previous Forth also Cross ; immediate
59:
60: forth definitions
61:
62: : T previous Ghosts also Target ; immediate
63: : G Ghosts ; immediate
64:
65:
66: : >cross also Cross definitions previous ;
67: : >target also Target definitions previous ;
68: : >minimal also Minimal definitions previous ;
69:
70: H
71:
72: >CROSS
73:
74: \ 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 )
139: over [char] ' =
140: IF \ a ' alone is rather unusual :-)
141: drop char+ c@ 0 true EXIT
142: THEN
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]
204:
205: hex \ the defualt base for the cross-compiler is hex !!
206: \ Warnings off
207:
208: \ words that are generaly useful
209:
210: : KB 400 * ;
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 ;
216:
217: : string, ( c-addr u -- )
218: \ puts down string as cstring
219: dup c, here swap chars dup allot move ;
220:
221: : ," [char] " parse string, ;
222:
223: : SetValue ( n -- <name> )
224: \G Same behaviour as "Value" if the <name> is not defined
225: \G Same behaviour as "to" if <name> is defined
226: \G SetValue searches in the current vocabulary
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
233: set-order
234: ELSE Value THEN ;
235:
236: : DefaultValue ( n -- <name> )
237: \G Same behaviour as "Value" if the <name> is not defined
238: \G DefaultValue searches in the current vocabulary
239: save-input bl word >r restore-input throw r> count
240: get-current search-wordlist
241: IF bl word drop 2drop ELSE Value THEN ;
242:
243: hex
244:
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:
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:
261: \ Begin CROSS COMPILER:
262:
263: \ debugging
264:
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:
274: >CROSS
275:
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
305:
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 )
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 - ;
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:
589: 0 [IF]
590:
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:
601: [THEN]
602:
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:
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 dlit, ( d -- ) \ compile numerical value the target
694: Plugin lit, ( n -- )
695: Plugin alit, ( n -- )
696:
697: Plugin branch, ( target-addr -- ) \ compiles a branch
698: Plugin ?branch, ( target-addr -- ) \ compiles a ?branch
699: Plugin branchmark, ( -- branch-addr ) \ reserves room for a branch
700: Plugin ?branchmark, ( -- branch-addr ) \ reserves room for a ?branch
701: Plugin ?domark, ( -- branch-addr ) \ reserves room for a ?do branch
702: Plugin branchto, ( -- ) \ actual program position is target of a branch (do e.g. alignment)
703: ' NOOP plugin-of branchto,
704: Plugin branchtoresolve, ( branch-addr -- ) \ resolves a forward reference from branchmark
705: Plugin branchtomark, ( -- target-addr ) \ marks a branch destination
706:
707: Plugin colon, ( tcfa -- ) \ compiles call to tcfa at current position
708: Plugin prim, ( tcfa -- ) \ compiles primitive invocation
709: Plugin colonmark, ( -- addr ) \ marks a colon call
710: Plugin colon-resolve ( tcfa addr -- )
711:
712: Plugin addr-resolve ( target-addr addr -- )
713: Plugin doer-resolve ( ghost res-pnt target-addr addr -- ghost res-pnt )
714:
715: Plugin ncontrols? ( [ xn ... x1 ] n -- ) \ checks wheter n control structures are open
716: Plugin if, ( -- if-token )
717: Plugin else, ( if-token -- if-token )
718: Plugin then, ( if-token -- )
719: Plugin ahead,
720: Plugin begin,
721: Plugin while,
722: Plugin until,
723: Plugin again,
724: Plugin repeat,
725: Plugin cs-swap ( x1 x2 -- x2 x1 )
726:
727: Plugin case, ( -- n )
728: Plugin of, ( n -- x1 n )
729: Plugin endof, ( x1 n -- x2 n )
730: Plugin endcase, ( x1 .. xn n -- )
731:
732: Plugin do, ( -- do-token )
733: Plugin ?do, ( -- ?do-token )
734: Plugin for, ( -- for-token )
735: Plugin loop, ( do-token / ?do-token -- )
736: Plugin +loop, ( do-token / ?do-token -- )
737: Plugin next, ( for-token )
738: Plugin leave, ( -- )
739: Plugin ?leave, ( -- )
740:
741: [IFUNDEF] ca>native
742: Plugin ca>native
743: [THEN]
744:
745: Plugin doprim, \ compiles start of a primitive
746: Plugin docol, \ compiles start of a colon definition
747: Plugin doer,
748: Plugin fini, \ compiles end of definition ;s
749: Plugin doeshandler,
750: Plugin dodoes,
751:
752: Plugin colon-start
753: ' noop plugin-of colon-start
754: Plugin colon-end
755: ' noop plugin-of colon-end
756:
757: Plugin ]comp \ starts compilation
758: ' noop plugin-of ]comp
759: Plugin comp[ \ ends compilation
760: ' noop plugin-of comp[
761:
762: Plugin t>body \ we need the system >body
763: \ and the target >body
764:
765: >TARGET
766: : >body t>body ;
767:
768:
769: \ Ghost Builder 06oct92py
770:
771: >CROSS
772: hex
773: \ Values for ghost magic
774: 4711 Constant <fwd> 4712 Constant <res>
775: 4713 Constant <imm> 4714 Constant <do:>
776: 4715 Constant <skip>
777:
778: \ Bitmask for ghost flags
779: 1 Constant <unique>
780: 2 Constant <primitive>
781:
782: \ FXIME: move this to general stuff?
783: : set-flag ( addr flag -- )
784: over @ or swap ! ;
785:
786: : reset-flag ( addr flag -- )
787: invert over @ and swap ! ;
788:
789: : get-flag ( addr flag -- f )
790: swap @ and 0<> ;
791:
792:
793: Struct
794:
795: \ link to next ghost (always the first element)
796: cell% field >next-ghost
797:
798: \ type of ghost
799: cell% field >magic
800:
801: \ pointer where ghost is in target, or if unresolved
802: \ points to the where we have to resolve (linked-list)
803: cell% field >link
804:
805: \ execution semantics (while target compiling) of ghost
806: cell% field >exec
807:
808: \ compilation action of this ghost; this is what is
809: \ done to compile a call (or whatever) to this definition.
810: \ E.g. >comp contains the semantic of postpone s"
811: \ whereas >exec-compile contains the semantic of s"
812: cell% field >comp
813:
814: \ Compilation sematics (while parsing) of this ghost. E.g.
815: \ "\" will skip the rest of line.
816: \ These semantics are defined by Cond: and
817: \ if a word is made immediate in instant, then the >exec2 field
818: \ gets copied to here
819: cell% field >exec-compile
820:
821: \ Additional execution semantics of this ghost. This is used
822: \ for code generated by instant and for the doer-xt of created
823: \ words
824: cell% field >exec2
825:
826: cell% field >created
827:
828: \ the xt of the created ghost word itself
829: cell% field >ghost-xt
830:
831: \ pointer to the counted string of the assiciated
832: \ assembler label
833: cell% field >asm-name
834:
835: \ mapped primitives have a special address, so
836: \ we are able to detect them
837: cell% field >asm-dummyaddr
838:
839: \ for builder (create, variable...) words
840: \ the execution symantics of words built are placed here
841: \ this is a doer ghost or a dummy ghost
842: cell% field >do:ghost
843:
844: cell% field >ghost-flags
845:
846: cell% field >ghost-name
847:
848: End-Struct ghost-struct
849:
850: Variable ghost-list
851: 0 ghost-list !
852:
853: Variable executed-ghost \ last executed ghost, needed in tcreate and gdoes>
854: \ Variable last-ghost \ last ghost that is created
855: Variable last-header-ghost \ last ghost definitions with header
856:
857: \ space for ghosts resolve structure
858: \ we create ghosts in a sepearte space
859: \ and not to the current host dp, because this
860: \ gives trouble with instant while compiling and creating
861: \ a ghost for a forward reference
862: \ BTW: we cannot allocate another memory region
863: \ because allot will check the overflow!!
864: Variable cross-space-dp
865: Create cross-space 250000 allot here 100 allot align
866: Constant cross-space-end
867: cross-space cross-space-dp !
868: Variable cross-space-dp-orig
869:
870: : cross-space-used cross-space-dp @ cross-space - ;
871:
872: : >space ( -- )
873: dp @ cross-space-dp-orig !
874: cross-space-dp @ dp ! ;
875:
876: : space> ( -- )
877: dp @ dup cross-space-dp !
878: cross-space-end u> ABORT" CROSS: cross-space overflow"
879: cross-space-dp-orig @ dp ! ;
880:
881: \ this is just for debugging, to see this in the backtrace
882: : execute-exec execute ;
883: : execute-exec2 execute ;
884: : execute-exec-compile execute ;
885:
886: : NoExec
887: executed-ghost @ >exec2 @
888: ?dup
889: IF execute-exec2
890: ELSE true ABORT" CROSS: Don't execute ghost, or immediate target word"
891: THEN ;
892:
893: Defer is-forward
894:
895: : (ghostheader) ( -- )
896: ghost-list linked <fwd> , 0 , ['] NoExec , ['] is-forward ,
897: 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , ;
898:
899: : ghostheader ( -- ) (ghostheader) 0 , ;
900:
901: ' Ghosts >wordlist Constant ghosts-wordlist
902:
903: \ the current wordlist for ghost definitions in the host
904: ghosts-wordlist Value current-ghosts
905:
906: : Make-Ghost ( "name" -- ghost )
907: >space
908: \ save current and create in ghost vocabulary
909: get-current >r current-ghosts set-current
910: >in @ Create >in !
911: \ some forth systems like iForth need the immediate directly
912: \ after the word is created
913: \ restore current
914: r> set-current
915: here (ghostheader)
916: bl word count string, align
917: space>
918: \ set ghost-xt field by doing a search
919: dup >ghost-name count
920: current-ghosts search-wordlist
921: 0= ABORT" CROSS: Just created, must be there!"
922: over >ghost-xt !
923: DOES>
924: dup executed-ghost !
925: >exec @ execute-exec ;
926:
927: \ ghost words 14oct92py
928: \ changed: 10may93py/jaw
929:
930: Defer search-ghosts
931:
932: : (search-ghosts) ( adr len -- cfa true | 0 )
933: current-ghosts search-wordlist ;
934:
935: ' (search-ghosts) IS search-ghosts
936:
937: : gsearch ( addr len -- ghost true | 0 )
938: search-ghosts
939: dup IF swap >body swap THEN ;
940:
941: : gfind ( string -- ghost true / string false )
942: \ searches for string in word-list ghosts
943: \ dup count type space
944: dup >r count gsearch
945: dup IF rdrop ELSE r> swap THEN ;
946:
947: : gdiscover ( xt -- ghost true | xt false )
948: >r ghost-list
949: BEGIN @ dup
950: WHILE dup >magic @ <fwd> <>
951: IF dup >link @ r@ =
952: IF rdrop true EXIT THEN
953: THEN
954: REPEAT
955: drop r> false ;
956:
957: : xt>ghost ( xt -- ghost )
958: gdiscover 0= ABORT" CROSS: ghost not found for this xt" ;
959:
960: : Ghost ( "name" -- ghost )
961: >in @ bl word gfind IF nip EXIT THEN
962: drop >in ! Make-Ghost ;
963:
964: : >ghostname ( ghost -- adr len )
965: >ghost-name count ;
966:
967: : forward? ( ghost -- flag )
968: >magic @ <fwd> = ;
969:
970: : undefined? ( ghost -- flag )
971: >magic @ dup <fwd> = swap <skip> = or ;
972:
973: : immediate? ( ghost -- flag )
974: >magic @ <imm> = ;
975:
976: Variable TWarnings
977: TWarnings on
978: Variable Exists-Warnings
979: Exists-Warnings on
980:
981: : exists-warning ( ghost -- ghost )
982: TWarnings @ Exists-Warnings @ and
983: IF dup >ghostname warnhead type ." exists " THEN ;
984:
985: \ : HeaderGhost Ghost ;
986:
987: Variable reuse-ghosts reuse-ghosts off
988:
989: : HeaderGhost ( "name" -- ghost )
990: >in @
991: bl word count
992: \ 2dup type space
993: current-ghosts search-wordlist
994: IF >body dup undefined? reuse-ghosts @ or
995: IF nip EXIT
996: ELSE exists-warning
997: THEN
998: drop >in !
999: ELSE >in !
1000: THEN
1001: \ we keep the execution semantics of the prviously
1002: \ defined words, this is a workaround
1003: \ for the redefined \ until vocs work
1004: Make-Ghost ;
1005:
1006: : .ghost ( ghost -- ) >ghostname type ;
1007:
1008: \ ' >ghostname ALIAS @name
1009:
1010: : [G'] ( -- ghost : name )
1011: \G ticks a ghost and returns its address
1012: \ bl word gfind 0= ABORT" CROSS: Ghost don't exists"
1013: ghost state @ IF postpone literal THEN ; immediate
1014:
1015: : g>xt ( ghost -- xt )
1016: \G Returns the xt (cfa) of a ghost. Issues a warning if undefined.
1017: dup undefined? ABORT" CROSS: forward " >link @ ;
1018:
1019: : g>body ( ghost -- body )
1020: \G Returns the body-address (pfa) of a ghost.
1021: \G Issues a warning if undefined (a forward-reference).
1022: g>xt X >body ;
1023:
1024: 1 Constant <label>
1025:
1026: Struct
1027: \ bitmask of address type (not used for now)
1028: cell% field addr-type
1029: \ if this address is an xt, this field points to the ghost
1030: cell% field addr-xt-ghost
1031: \ a bit mask that tells as what part of the cell
1032: \ is refenced from an address pointer, used for assembler generation
1033: cell% field addr-refs
1034: End-Struct addr-struct
1035:
1036: : %allocerase ( align size -- addr )
1037: dup >r %alloc dup r> erase ;
1038:
1039: \ returns the addr struct, define it if 0 reference
1040: : define-addr-struct ( addr -- struct-addr )
1041: dup @ ?dup IF nip EXIT THEN
1042: addr-struct %allocerase tuck swap ! ;
1043:
1044: \ Predefined ghosts 12dec92py
1045:
1046: Ghost 0= drop
1047: Ghost branch Ghost ?branch 2drop
1048: Ghost (do) Ghost (?do) 2drop
1049: Ghost (for) drop
1050: Ghost (loop) Ghost (+loop) 2drop
1051: Ghost (next) drop
1052: Ghost unloop Ghost ;S 2drop
1053: Ghost lit Ghost (compile) Ghost ! 2drop drop
1054: Ghost (does>) Ghost noop 2drop
1055: Ghost (.") Ghost (S") Ghost (ABORT") 2drop drop
1056: Ghost ' drop
1057: Ghost :docol Ghost :doesjump Ghost :dodoes 2drop drop
1058: Ghost :dovar drop
1059: Ghost over Ghost = Ghost drop 2drop drop
1060: Ghost - drop
1061: Ghost 2drop drop
1062: Ghost 2dup drop
1063:
1064:
1065:
1066: \ \ Parameter for target systems 06oct92py
1067:
1068:
1069: >cross
1070: \ we define it ans like...
1071: wordlist Constant target-environment
1072:
1073: \ save information of current dictionary to restore with environ>
1074: Variable env-current
1075:
1076: : >ENVIRON get-current env-current ! target-environment set-current ;
1077: : ENVIRON> env-current @ set-current ;
1078:
1079: >TARGET
1080:
1081: : environment? ( addr len -- [ x ] true | false )
1082: \G returns the content of environment variable and true or
1083: \G false if not present
1084: target-environment search-wordlist
1085: IF EXECUTE true ELSE false THEN ;
1086:
1087: : $has? ( addr len -- x | false )
1088: \G returns the content of environment variable
1089: \G or false if not present
1090: T environment? H dup IF drop THEN ;
1091:
1092: : e? ( "name" -- x )
1093: \G returns the content of environment variable.
1094: \G The variable is expected to exist. If not, issue an error.
1095: bl word count T environment? H
1096: 0= ABORT" environment variable not defined!" ;
1097:
1098: : has? ( "name" --- x | false )
1099: \G returns the content of environment variable
1100: \G or false if not present
1101: bl word count T $has? H ;
1102:
1103:
1104: >ENVIRON get-order get-current swap 1+ set-order
1105: true SetValue compiler
1106: true SetValue cross
1107: true SetValue standard-threading
1108: >TARGET previous
1109:
1110: 0
1111: [IFDEF] mach-file drop mach-file count 1 [THEN]
1112: [IFDEF] machine-file drop machine-file 1 [THEN]
1113: [IF] included hex
1114: [ELSE] cr ." No machine description!" ABORT
1115: [THEN]
1116:
1117: >ENVIRON
1118:
1119: T has? ec H
1120: [IF]
1121: false DefaultValue relocate
1122: false DefaultValue file
1123: false DefaultValue OS
1124: false DefaultValue prims
1125: false DefaultValue floating
1126: false DefaultValue glocals
1127: false DefaultValue dcomps
1128: false DefaultValue hash
1129: false DefaultValue xconds
1130: false DefaultValue header
1131: false DefaultValue backtrace
1132: false DefaultValue new-input
1133: false DefaultValue peephole
1134: [THEN]
1135:
1136: true DefaultValue interpreter
1137: true DefaultValue ITC
1138: false DefaultValue rom
1139: true DefaultValue standardthreading
1140:
1141: >TARGET
1142: s" relocate" T environment? H
1143: \ JAW why set NIL to this?!
1144: [IF] drop \ SetValue NIL
1145: [ELSE] >ENVIRON X NIL SetValue relocate
1146: [THEN]
1147: >TARGET
1148:
1149: 0 Constant NIL
1150:
1151: >CROSS
1152:
1153: \ \ Create additional parameters 19jan95py
1154:
1155: \ currently cross only works for host machines with address-unit-bits
1156: \ eual to 8 because of s! and sc!
1157: \ but I start to query the environment just to modularize a little bit
1158:
1159: : check-address-unit-bits ( -- )
1160: \ s" ADDRESS-UNIT-BITS" environment?
1161: \ IF 8 <> ELSE true THEN
1162: \ ABORT" ADDRESS-UNIT-BITS unknown or not equal to 8!"
1163:
1164: \ shit, this doesn't work because environment? is only defined for
1165: \ gforth.fi and not kernl???.fi
1166: ;
1167:
1168: check-address-unit-bits
1169: 8 Constant bits/byte \ we define: byte is address-unit
1170:
1171: 1 bits/byte lshift Constant maxbyte
1172: \ this sets byte size for the target machine, (probably right guess) jaw
1173:
1174: T
1175: NIL Constant TNIL
1176: cell Constant tcell
1177: cell<< Constant tcell<<
1178: cell>bit Constant tcell>bit
1179: bits/char Constant tbits/char
1180: bits/char H bits/byte T /
1181: Constant tchar
1182: float Constant tfloat
1183: 1 bits/char lshift Constant tmaxchar
1184: [IFUNDEF] bits/byte
1185: 8 Constant tbits/byte
1186: [ELSE]
1187: bits/byte Constant tbits/byte
1188: [THEN]
1189: H
1190: tbits/char bits/byte / Constant tbyte
1191:
1192:
1193: \ Variables 06oct92py
1194:
1195: Variable image
1196: Variable tlast TNIL tlast ! \ Last name field
1197: Variable tlastcfa \ Last code field
1198: Variable bit$
1199:
1200: \ statistics 10jun97jaw
1201:
1202: Variable headers-named 0 headers-named !
1203: Variable user-vars 0 user-vars !
1204:
1205: : target>bitmask-size ( u1 -- u2 )
1206: 1- tcell>bit rshift 1+ ;
1207:
1208: : allocatetarget ( size -- adr )
1209: dup allocate ABORT" CROSS: No memory for target"
1210: swap over swap erase ;
1211:
1212: \ \ memregion.fs
1213:
1214:
1215: Variable last-defined-region \ pointer to last defined region
1216: Variable region-link \ linked list with all regions
1217: Variable mirrored-link \ linked list for mirrored regions
1218: 0 dup mirrored-link ! region-link !
1219:
1220:
1221: : >rname 7 cells + ;
1222: : >rbm 4 cells + ;
1223: : >rmem 5 cells + ;
1224: : >rtype 6 cells + ;
1225: : >rlink 3 cells + ;
1226: : >rdp 2 cells + ;
1227: : >rlen cell+ ;
1228: : >rstart ;
1229:
1230: : (region) ( addr len region -- )
1231: \G change startaddress and length of an existing region
1232: >r r@ last-defined-region !
1233: r@ >rlen ! dup r@ >rstart ! r> >rdp ! ;
1234:
1235: : region ( addr len -- )
1236: \G create a new region
1237: \ check whether predefined region exists
1238: save-input bl word find >r >r restore-input throw r> r> 0=
1239: IF \ make region
1240: drop
1241: save-input create restore-input throw
1242: here last-defined-region !
1243: over ( startaddr ) , ( length ) , ( dp ) ,
1244: region-link linked 0 , 0 , 0 , bl word count string,
1245: ELSE \ store new parameters in region
1246: bl word drop
1247: >body (region)
1248: THEN ;
1249:
1250: : borders ( region -- startaddr endaddr )
1251: \G returns lower and upper region border
1252: dup >rstart @ swap >rlen @ over + ;
1253:
1254: : extent ( region -- startaddr len )
1255: \G returns the really used area
1256: dup >rstart @ swap >rdp @ over - ;
1257:
1258: : area ( region -- startaddr totallen )
1259: \G returns the total area
1260: dup >rstart @ swap >rlen @ ;
1261:
1262: : mirrored
1263: \G mark a region as mirrored
1264: mirrored-link
1265: align linked last-defined-region @ , ;
1266:
1267: : .addr ( u -- )
1268: \G prints a 16 or 32 Bit nice hex value
1269: base @ >r hex
1270: tcell 2 u>
1271: IF s>d <# # # # # [char] . hold # # # # #> type
1272: ELSE s>d <# # # # # # #> type
1273: THEN r> base ! space ;
1274:
1275: : .regions \G display region statistic
1276:
1277: \ we want to list the regions in the right order
1278: \ so first collect all regions on stack
1279: 0 region-link @
1280: BEGIN dup WHILE dup @ REPEAT drop
1281: BEGIN dup
1282: WHILE cr
1283: 0 >rlink - >r
1284: r@ >rname count tuck type
1285: 12 swap - 0 max spaces space
1286: ." Start: " r@ >rstart @ dup .addr space
1287: ." End: " r@ >rlen @ + .addr space
1288: ." DP: " r> >rdp @ .addr
1289: REPEAT drop
1290: s" rom" T $has? H 0= ?EXIT
1291: cr ." Mirrored:"
1292: mirrored-link @
1293: BEGIN dup
1294: WHILE space dup cell+ @ >rname count type @
1295: REPEAT drop cr
1296: ;
1297:
1298: \ -------- predefined regions
1299:
1300: 0 0 region address-space
1301: \ total memory addressed and used by the target system
1302:
1303: 0 0 region dictionary
1304: \ rom area for the compiler
1305:
1306: T has? rom H
1307: [IF]
1308: 0 0 region ram-dictionary mirrored
1309: \ ram area for the compiler
1310: [ELSE]
1311: ' dictionary ALIAS ram-dictionary
1312: [THEN]
1313:
1314: 0 0 region return-stack
1315:
1316: 0 0 region data-stack
1317:
1318: 0 0 region tib-region
1319:
1320: ' dictionary ALIAS rom-dictionary
1321:
1322:
1323: : setup-target ( -- ) \G initialize target's memory space
1324: s" rom" T $has? H
1325: IF \ check for ram and rom...
1326: \ address-space area nip 0<>
1327: ram-dictionary area nip 0<>
1328: rom-dictionary area nip 0<>
1329: and 0=
1330: ABORT" CROSS: define address-space, rom- , ram-dictionary, with rom-support!"
1331: THEN
1332: address-space area nip
1333: IF
1334: address-space area
1335: ELSE
1336: dictionary area
1337: THEN
1338: nip 0=
1339: ABORT" CROSS: define at least address-space or dictionary!!"
1340:
1341: \ allocate target for each region
1342: region-link
1343: BEGIN @ dup
1344: WHILE dup
1345: 0 >rlink - >r
1346: r@ >rlen @
1347: IF \ allocate mem
1348: r@ >rlen @ allocatetarget dup image !
1349: r@ >rmem !
1350:
1351: r@ >rlen @
1352: target>bitmask-size allocatetarget
1353: dup bit$ !
1354: r@ >rbm !
1355:
1356: r@ >rlen @
1357: tcell / 1+ cells allocatetarget r@ >rtype !
1358:
1359: rdrop
1360: ELSE r> drop THEN
1361: REPEAT drop ;
1362:
1363: \ MakeKernel 22feb99jaw
1364:
1365: : makekernel ( targetsize -- )
1366: \G convenience word to setup the memory of the target
1367: \G used by main.fs of the c-engine based systems
1368: 100 swap dictionary (region)
1369: setup-target ;
1370:
1371: >MINIMAL
1372: : makekernel makekernel ;
1373: >CROSS
1374:
1375: \ \ switched tdp for rom support 03jun97jaw
1376:
1377: \ second value is here to store some maximal value for statistics
1378: \ tempdp is also embedded here but has nothing to do with rom support
1379: \ (needs switched dp)
1380:
1381: variable tempdp 0 , \ temporary dp for resolving
1382: variable tempdp-save
1383:
1384: 0 [IF]
1385: variable romdp 0 , \ Dictionary-Pointer for ramarea
1386: variable ramdp 0 , \ Dictionary-Pointer for romarea
1387:
1388: \
1389: variable sramdp \ start of ram-area for forth
1390: variable sromdp \ start of rom-area for forth
1391:
1392: [THEN]
1393:
1394:
1395: 0 value tdp
1396: variable fixed \ flag: true: no automatic switching
1397: \ false: switching is done automatically
1398:
1399: \ Switch-Policy:
1400: \
1401: \ a header is always compiled into rom
1402: \ after a created word (create and variable) compilation goes to ram
1403: \
1404: \ Be careful: If you want to make the data behind create into rom
1405: \ you have to put >rom before create!
1406:
1407: variable constflag constflag off
1408:
1409: : activate ( region -- )
1410: \G next code goes to this region
1411: >rdp to tdp ;
1412:
1413: : (switchram)
1414: fixed @ ?EXIT s" rom" T $has? H 0= ?EXIT
1415: ram-dictionary activate ;
1416:
1417: : switchram
1418: constflag @
1419: IF constflag off ELSE (switchram) THEN ;
1420:
1421: : switchrom
1422: fixed @ ?EXIT rom-dictionary activate ;
1423:
1424: : >tempdp ( addr -- )
1425: tdp tempdp-save ! tempdp to tdp tdp ! ;
1426: : tempdp> ( -- )
1427: tempdp-save @ to tdp ;
1428:
1429: : >ram fixed off (switchram) fixed on ;
1430: : >rom fixed off switchrom fixed on ;
1431: : >auto fixed off switchrom ;
1432:
1433:
1434:
1435: \ : romstart dup sromdp ! romdp ! ;
1436: \ : ramstart dup sramdp ! ramdp ! ;
1437:
1438: \ default compilation goes to rom
1439: \ when romable support is off, only the rom switch is used (!!)
1440: >auto
1441:
1442: : there tdp @ ;
1443:
1444: >TARGET
1445:
1446: \ \ Target Memory Handling
1447:
1448: \ Byte ordering and cell size 06oct92py
1449:
1450: : cell+ tcell + ;
1451: : cells tcell<< lshift ;
1452: : chars tchar * ;
1453: : char+ tchar + ;
1454: : floats tfloat * ;
1455:
1456: >CROSS
1457: : cell/ tcell<< rshift ;
1458: >TARGET
1459: 20 CONSTANT bl
1460: \ TNIL Constant NIL
1461:
1462: >CROSS
1463:
1464: bigendian
1465: [IF]
1466: : DS! ( d addr -- ) tcell bounds swap 1-
1467: DO maxbyte ud/mod rot I c! -1 +LOOP 2drop ;
1468: : DS@ ( addr -- d ) >r 0 0 r> tcell bounds
1469: DO maxbyte * swap maxbyte um* rot + swap I c@ + swap LOOP ;
1470: : Sc! ( n addr -- ) >r s>d r> tchar bounds swap 1-
1471: DO maxbyte ud/mod rot I c! -1 +LOOP 2drop ;
1472: : Sc@ ( addr -- n ) >r 0 0 r> tchar bounds
1473: DO maxbyte * swap maxbyte um* rot + swap I c@ + swap LOOP d>s ;
1474: [ELSE]
1475: : DS! ( d addr -- ) tcell bounds
1476: DO maxbyte ud/mod rot I c! LOOP 2drop ;
1477: : DS@ ( addr -- n ) >r 0 0 r> tcell bounds swap 1-
1478: DO maxbyte * swap maxbyte um* rot + swap I c@ + swap -1 +LOOP ;
1479: : Sc! ( n addr -- ) >r s>d r> tchar bounds
1480: DO maxbyte ud/mod rot I c! LOOP 2drop ;
1481: : Sc@ ( addr -- n ) >r 0 0 r> tchar bounds swap 1-
1482: DO maxbyte * swap maxbyte um* rot + swap I c@ + swap -1 +LOOP d>s ;
1483: [THEN]
1484:
1485: : S! ( n addr -- ) >r s>d r> DS! ;
1486: : S@ ( addr -- n ) DS@ d>s ;
1487:
1488: : taddr>region ( taddr -- region | 0 )
1489: \G finds for a target-address the correct region
1490: \G returns 0 if taddr is not in range of a target memory region
1491: region-link
1492: BEGIN @ dup
1493: WHILE dup >r
1494: 0 >rlink - >r
1495: r@ >rlen @
1496: IF dup r@ borders within
1497: IF r> r> drop nip EXIT THEN
1498: THEN
1499: r> drop
1500: r>
1501: REPEAT
1502: 2drop 0 ;
1503:
1504: : taddr>region-abort ( taddr -- region | 0 )
1505: dup taddr>region dup 0=
1506: IF drop cr ." Wrong address: " .addr
1507: -1 ABORT" Address out of range!"
1508: THEN nip ;
1509:
1510: : (>regionimage) ( taddr -- 'taddr )
1511: dup
1512: \ find region we want to address
1513: taddr>region-abort
1514: >r
1515: \ calculate offset in region
1516: r@ >rstart @ -
1517: \ add regions real address in our memory
1518: r> >rmem @ + ;
1519:
1520: : (>regionbm) ( taddr -- 'taddr bitmaskbaseaddr )
1521: dup
1522: \ find region we want to address
1523: taddr>region-abort
1524: >r
1525: \ calculate offset in region
1526: r@ >rstart @ -
1527: \ add regions real address in our memory
1528: r> >rbm @ ;
1529:
1530: : (>regiontype) ( taddr -- 'taddr )
1531: dup
1532: \ find region we want to address
1533: taddr>region-abort
1534: >r
1535: \ calculate offset in region
1536: r@ >rstart @ - tcell / cells
1537: \ add regions real address in our memory
1538: r> >rtype @ + ;
1539:
1540: \ Bit string manipulation 06oct92py
1541: \ 9may93jaw
1542: CREATE Bittable 80 c, 40 c, 20 c, 10 c, 8 c, 4 c, 2 c, 1 c,
1543: : bits ( n -- n ) chars Bittable + c@ ;
1544:
1545: : >bit ( addr n -- c-addr mask ) 8 /mod rot + swap bits ;
1546: : +bit ( addr n -- ) >bit over c@ or swap c! ;
1547: : -bit ( addr n -- ) >bit invert over c@ and swap c! ;
1548:
1549: : @relbit ( taddr -- f ) (>regionbm) swap cell/ >bit swap c@ and ;
1550:
1551: : (relon) ( 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] ]
1556: (>regionbm) swap cell/ +bit ;
1557:
1558: : (reloff) ( taddr -- )
1559: [ [IFDEF] fd-relocation-table ]
1560: s" -" fd-relocation-table write-file throw
1561: dup s>d <# #s #> fd-relocation-table write-line throw
1562: [ [THEN] ]
1563: (>regionbm) swap cell/ -bit ;
1564:
1565: : (>image) ( taddr -- absaddr ) image @ + ;
1566:
1567: DEFER >image
1568: DEFER relon
1569: DEFER reloff
1570: DEFER correcter
1571:
1572: T has? relocate H
1573: [IF]
1574: ' (relon) IS relon
1575: ' (reloff) IS reloff
1576: ' (>regionimage) IS >image
1577: [ELSE]
1578: ' drop IS relon
1579: ' drop IS reloff
1580: ' (>regionimage) IS >image
1581: [THEN]
1582:
1583: \ Target memory access 06oct92py
1584:
1585: : align+ ( taddr -- rest )
1586: tcell tuck 1- and - [ tcell 1- ] Literal and ;
1587: : cfalign+ ( taddr -- rest )
1588: \ see kernel.fs:cfaligned
1589: /maxalign tuck 1- and - [ /maxalign 1- ] Literal and ;
1590:
1591: >TARGET
1592: : aligned ( taddr -- ta-addr ) dup align+ + ;
1593: \ assumes cell alignment granularity (as GNU C)
1594:
1595: : cfaligned ( taddr1 -- taddr2 )
1596: \ see kernel.fs
1597: dup cfalign+ + ;
1598:
1599: : @ ( taddr -- w ) >image S@ ;
1600: : ! ( w taddr -- ) >image S! ;
1601: : c@ ( taddr -- char ) >image Sc@ ;
1602: : c! ( char taddr -- ) >image Sc! ;
1603: : 2@ ( taddr -- x1 x2 ) T dup cell+ @ swap @ H ;
1604: : 2! ( x1 x2 taddr -- ) T tuck ! cell+ ! H ;
1605:
1606: \ Target compilation primitives 06oct92py
1607: \ included A! 16may93jaw
1608:
1609: : here ( -- there ) there ;
1610: : allot ( n -- ) tdp +! ;
1611: : , ( w -- ) T here H tcell T allot ! H ;
1612: : c, ( char -- ) T here H tchar T allot c! H ;
1613: : align ( -- ) T here H align+ 0 ?DO bl T c, H tchar +LOOP ;
1614: : cfalign ( -- )
1615: T here H cfalign+ 0 ?DO bl T c, H tchar +LOOP ;
1616:
1617: : >address dup 0>= IF tbyte / THEN ; \ ?? jaw
1618: : A! swap >address swap dup relon T ! H ;
1619: : A, ( w -- ) >address T here H relon T , H ;
1620:
1621:
1622: \ \ -------------------- Host/Target copy etc. 29aug01jaw
1623:
1624:
1625: >CROSS
1626:
1627: : TD! >image DS! ;
1628: : TD@ >image DS@ ;
1629:
1630: : th-count ( taddr -- host-addr len )
1631: \G returns host address of target string
1632: assert1( tbyte 1 = )
1633: dup X c@ swap X char+ >image swap ;
1634:
1635: : ht-move ( haddr taddr len -- )
1636: \G moves data from host-addr to destination in target-addr
1637: \G character by character
1638: swap -rot bounds ?DO I c@ over X c! X char+ LOOP drop ;
1639:
1640: 2Variable last-string
1641:
1642: : ht-string, ( addr count -- )
1643: dup there swap last-string 2!
1644: dup T c, H bounds ?DO I c@ T c, H LOOP ;
1645:
1646: >TARGET
1647:
1648: : count dup X c@ swap X char+ swap ;
1649:
1650: : on -1 -1 rot TD! ;
1651: : off T 0 swap ! H ;
1652:
1653: : tcmove ( source dest len -- )
1654: \G cmove in target memory
1655: tchar * bounds
1656: ?DO dup T c@ H I T c! H 1+
1657: tchar +LOOP drop ;
1658:
1659: : td, ( d -- )
1660: \G Store a host value as one cell into the target
1661: there tcell X allot TD! ;
1662:
1663: \ \ Load Assembler
1664:
1665: >TARGET
1666: H also Forth definitions
1667:
1668: \ FIXME: should we include the assembler really in the forth
1669: \ dictionary?!?!?!? This conflicts with the existing assembler
1670: \ of the host forth system!!
1671: [IFDEF] asm-include asm-include [THEN] hex
1672:
1673: previous
1674:
1675:
1676: >CROSS
1677:
1678: : (cc) T a, H ; ' (cc) plugin-of colon,
1679: : (prim) T a, H ; ' (prim) plugin-of prim,
1680:
1681: : (cr) >tempdp ]comp prim, comp[ tempdp> ; ' (cr) plugin-of colon-resolve
1682: : (ar) T ! H ; ' (ar) plugin-of addr-resolve
1683: : (dr) ( ghost res-pnt target-addr addr )
1684: >tempdp drop over
1685: dup >magic @ <do:> =
1686: IF doer,
1687: ELSE dodoes,
1688: THEN
1689: tempdp> ; ' (dr) plugin-of doer-resolve
1690:
1691: : (cm) ( -- addr )
1692: T here align H
1693: -1 prim, ; ' (cm) plugin-of colonmark,
1694:
1695: >TARGET
1696: : compile, ( xt -- )
1697: dup xt>ghost >comp @ EXECUTE ;
1698: >CROSS
1699:
1700: \ resolve structure
1701:
1702: : >next ; \ link to next field
1703: : >tag cell+ ; \ indecates type of reference: 0: call, 1: address, 2: doer
1704: : >taddr cell+ cell+ ;
1705: : >ghost 3 cells + ;
1706: : >file 4 cells + ;
1707: : >line 5 cells + ;
1708:
1709: : (refered) ( ghost addr tag -- )
1710: \G creates a reference to ghost at address taddr
1711: >space
1712: rot >link linked
1713: ( taddr tag ) ,
1714: ( taddr ) ,
1715: last-header-ghost @ ,
1716: loadfile ,
1717: sourceline# ,
1718: space>
1719: ;
1720:
1721: : refered ( ghost tag -- )
1722: \G creates a resolve structure
1723: T here aligned H swap (refered)
1724: ;
1725:
1726: : killref ( addr ghost -- )
1727: \G kills a forward reference to ghost at position addr
1728: \G this is used to eleminate a :dovar refence after making a DOES>
1729: dup >magic @ <fwd> <> IF 2drop EXIT THEN
1730: swap >r >link
1731: BEGIN dup @ dup ( addr last this )
1732: WHILE dup >taddr @ r@ =
1733: IF @ over !
1734: ELSE nip THEN
1735: REPEAT rdrop 2drop
1736: ;
1737:
1738: Defer resolve-warning
1739:
1740: : reswarn-test ( ghost res-struct -- ghost res-struct )
1741: over cr ." Resolving " .ghost dup ." in " >ghost @ .ghost ;
1742:
1743: : reswarn-forward ( ghost res-struct -- ghost res-struct )
1744: over warnhead .ghost dup ." is referenced in "
1745: >ghost @ .ghost ;
1746:
1747: \ ' reswarn-test IS resolve-warning
1748:
1749: \ resolve 14oct92py
1750:
1751: : resolve-loop ( ghost resolve-list tcfa -- )
1752: >r
1753: BEGIN dup WHILE
1754: \ dup >tag @ 2 = IF reswarn-forward THEN
1755: resolve-warning
1756: r@ over >taddr @
1757: 2 pick >tag @
1758: CASE 0 OF colon-resolve ENDOF
1759: 1 OF addr-resolve ENDOF
1760: 2 OF doer-resolve ENDOF
1761: ENDCASE
1762: @ \ next list element
1763: REPEAT 2drop rdrop
1764: ;
1765:
1766: \ : resolve-loop ( ghost tcfa -- ghost tcfa )
1767: \ >r dup >link @
1768: \ BEGIN dup WHILE dup T @ H r@ rot T ! H REPEAT drop r> ;
1769:
1770: \ exists 9may93jaw
1771:
1772: : exists ( ghost tcfa -- )
1773: \G print warning and set new target link in ghost
1774: swap exists-warning
1775: >link ! ;
1776:
1777: : colon-resolved ( ghost -- )
1778: >link @ colon, ; \ compile-call
1779:
1780: : prim-resolved ( ghost -- )
1781: >link @ prim, ;
1782:
1783: \ FIXME: not used currently
1784: : does-resolved ( ghost -- )
1785: dup g>body alit, >do:ghost @ g>body colon, ;
1786:
1787: : (is-forward) ( ghost -- )
1788: colonmark, 0 (refered) ; \ compile space for call
1789: ' (is-forward) IS is-forward
1790:
1791: : resolve ( ghost tcfa -- )
1792: \G resolve referencies to ghost with tcfa
1793: dup taddr>region 0<> IF
1794: 2dup (>regiontype) define-addr-struct addr-xt-ghost
1795:
1796: \ we define new address only if empty
1797: \ this is for not to take over the alias ghost
1798: \ (different ghost, but identical xt)
1799: \ but the very first that really defines it
1800: dup @ 0= IF ! ELSE 2drop THEN
1801: THEN
1802:
1803: \ is ghost resolved?, second resolve means another
1804: \ definition with the same name
1805: over undefined? 0= IF exists EXIT THEN
1806: \ get linked-list
1807: swap >r r@ >link @ swap \ ( list tcfa R: ghost )
1808: \ mark ghost as resolved
1809: dup r@ >link ! <res> r@ >magic !
1810: r@ >comp @ ['] is-forward = IF
1811: ['] prim-resolved r@ >comp ! THEN
1812: \ loop through forward referencies
1813: r> -rot
1814: comp-state @ >r Resolving comp-state !
1815: resolve-loop
1816: r> comp-state !
1817:
1818: ['] noop IS resolve-warning
1819: ;
1820:
1821: \ gexecute ghost, 01nov92py
1822:
1823: : (gexecute) ( ghost -- )
1824: dup >comp @ EXECUTE ;
1825:
1826: : gexecute ( ghost -- )
1827: dup >magic @ <imm> = IF -1 ABORT" CROSS: gexecute on immediate word" THEN
1828: (gexecute) ;
1829:
1830: : addr, ( ghost -- )
1831: dup forward? IF 1 refered 0 T a, H ELSE >link @ T a, H THEN ;
1832:
1833: \ .unresolved 11may93jaw
1834:
1835: variable ResolveFlag
1836:
1837: \ ?touched 11may93jaw
1838:
1839: : ?touched ( ghost -- flag ) dup forward? swap >link @
1840: 0 <> and ;
1841:
1842: : .forwarddefs ( ghost -- )
1843: ." appeared in:"
1844: >link
1845: BEGIN @ dup
1846: WHILE cr 5 spaces
1847: dup >ghost @ .ghost
1848: ." file " dup >file @ ?dup IF count type ELSE ." CON" THEN
1849: ." line " dup >line @ .dec
1850: REPEAT
1851: drop ;
1852:
1853: : ?resolved ( ghost -- )
1854: dup ?touched
1855: IF ResolveFlag on
1856: dup cr .ghost .forwarddefs
1857: ELSE drop
1858: THEN ;
1859:
1860: : .unresolved ( -- )
1861: ResolveFlag off cr ." Unresolved: "
1862: ghost-list
1863: BEGIN @ dup
1864: WHILE dup ?resolved
1865: REPEAT drop ResolveFlag @
1866: IF
1867: -1 abort" Unresolved words!"
1868: ELSE
1869: ." Nothing!"
1870: THEN
1871: cr ;
1872:
1873: : .stats
1874: base @ >r decimal
1875: cr ." named Headers: " headers-named @ .
1876: r> base ! ;
1877:
1878: >MINIMAL
1879:
1880: : .unresolved .unresolved ;
1881:
1882: >CROSS
1883: \ Header states 12dec92py
1884:
1885: \ : flag! ( 8b -- ) tlast @ dup >r T c@ xor r> c! H ;
1886: bigendian [IF] 0 [ELSE] tcell 1- [THEN] Constant flag+
1887: : flag! ( w -- ) tlast @ flag+ + dup >r T c@ xor r> c! H ;
1888:
1889: VARIABLE ^imm
1890:
1891: \ !! should be target wordsize specific
1892: $80 constant alias-mask
1893: $40 constant immediate-mask
1894: $20 constant restrict-mask
1895:
1896: >TARGET
1897: : immediate immediate-mask flag!
1898: ^imm @ @ dup <imm> = IF drop EXIT THEN
1899: <res> <> ABORT" CROSS: Cannot immediate a unresolved word"
1900: <imm> ^imm @ ! ;
1901: : restrict restrict-mask flag! ;
1902:
1903: : isdoer
1904: \G define a forth word as doer, this makes obviously only sence on
1905: \G forth processors such as the PSC1000
1906: <do:> last-header-ghost @ >magic ! ;
1907: >CROSS
1908:
1909: \ Target Header Creation 01nov92py
1910:
1911: : ht-lstring, ( addr count -- )
1912: dup T , H bounds ?DO I c@ T c, H LOOP ;
1913:
1914: >TARGET
1915: : name, ( "name" -- ) bl word count ht-lstring, X cfalign ;
1916: : view, ( -- ) ( dummy ) ;
1917: >CROSS
1918:
1919: \ Target Document Creation (goes to crossdoc.fd) 05jul95py
1920:
1921: s" ./doc/crossdoc.fd" r/w create-file throw value doc-file-id
1922: \ contains the file-id of the documentation file
1923:
1924: : T-\G ( -- )
1925: source >in @ /string doc-file-id write-line throw
1926: postpone \ ;
1927:
1928: Variable to-doc to-doc on
1929:
1930: : cross-doc-entry ( -- )
1931: to-doc @ tlast @ 0<> and \ not an anonymous (i.e. noname) header
1932: IF
1933: s" " doc-file-id write-line throw
1934: s" make-doc " doc-file-id write-file throw
1935:
1936: Last-Header-Ghost @ >ghostname doc-file-id write-file throw
1937: >in @
1938: [char] ( parse 2drop
1939: [char] ) parse doc-file-id write-file throw
1940: s" )" doc-file-id write-file throw
1941: [char] \ parse 2drop
1942: T-\G
1943: >in !
1944: THEN ;
1945:
1946: \ Target TAGS creation
1947:
1948: s" kernel.TAGS" r/w create-file throw value tag-file-id
1949: \ contains the file-id of the tags file
1950:
1951: Create tag-beg 2 c, 7F c, bl c,
1952: Create tag-end 2 c, bl c, 01 c,
1953: Create tag-bof 1 c, 0C c,
1954:
1955: 2variable last-loadfilename 0 0 last-loadfilename 2!
1956:
1957: : put-load-file-name ( -- )
1958: sourcefilename last-loadfilename 2@ d<>
1959: IF
1960: tag-bof count tag-file-id write-line throw
1961: sourcefilename 2dup
1962: tag-file-id write-file throw
1963: last-loadfilename 2!
1964: s" ,0" tag-file-id write-line throw
1965: THEN ;
1966:
1967: : cross-tag-entry ( -- )
1968: tlast @ 0<> \ not an anonymous (i.e. noname) header
1969: IF
1970: put-load-file-name
1971: source >in @ min tag-file-id write-file throw
1972: tag-beg count tag-file-id write-file throw
1973: tlast @ >image count 1F and tag-file-id write-file throw
1974: tag-end count tag-file-id write-file throw
1975: base @ decimal sourceline# 0 <# #s #> tag-file-id write-file throw
1976: \ >in @ 0 <# #s [char] , hold #> tag-file-id write-line throw
1977: s" ,0" tag-file-id write-line throw
1978: base !
1979: THEN ;
1980:
1981: \ Check for words
1982:
1983: Defer skip? ' false IS skip?
1984:
1985: : skipdef ( "name" -- )
1986: \G skip definition of an undefined word in undef-words and
1987: \G all-words mode
1988: Ghost dup forward?
1989: IF >magic <skip> swap !
1990: ELSE drop THEN ;
1991:
1992: : tdefined? ( "name" -- flag )
1993: Ghost undefined? 0= ;
1994:
1995: : defined2? ( "name" -- flag )
1996: \G return true for anything else than forward, even for <skip>
1997: \G that's what we want
1998: Ghost forward? 0= ;
1999:
2000: : forced? ( "name" -- flag )
2001: \G return ture if it is a foreced skip with defskip
2002: Ghost >magic @ <skip> = ;
2003:
2004: : needed? ( -- flag ) \ name
2005: \G returns a false flag when
2006: \G a word is not defined
2007: \G a forward reference exists
2008: \G so the definition is not skipped!
2009: bl word gfind
2010: IF dup undefined?
2011: nip
2012: 0=
2013: ELSE drop true THEN ;
2014:
2015: : doer? ( -- flag ) \ name
2016: Ghost >magic @ <do:> = ;
2017:
2018: : skip-defs ( -- )
2019: BEGIN refill WHILE source -trailing nip 0= UNTIL THEN ;
2020:
2021: \ Target header creation
2022:
2023: Variable NoHeaderFlag
2024: NoHeaderFlag off
2025:
2026: : 0.r ( n1 n2 -- )
2027: base @ >r hex
2028: 0 swap <# 0 ?DO # LOOP #> type
2029: r> base ! ;
2030:
2031: : .sym ( adr len -- )
2032: \G escapes / and \ to produce sed output
2033: bounds
2034: DO I c@ dup
2035: CASE [char] / OF drop ." \/" ENDOF
2036: [char] \ OF drop ." \\" ENDOF
2037: dup OF emit ENDOF
2038: ENDCASE
2039: LOOP ;
2040:
2041: Defer setup-execution-semantics
2042: 0 Value lastghost
2043:
2044: : (THeader ( "name" -- ghost )
2045: \ >in @ bl word count type 2 spaces >in !
2046: \ wordheaders will always be compiled to rom
2047: switchrom
2048: \ build header in target
2049: NoHeaderFlag @
2050: IF NoHeaderFlag off
2051: ELSE
2052: T align H view,
2053: tlast @ dup 0> IF tcell - THEN T A, H there tlast !
2054: 1 headers-named +! \ Statistic
2055: >in @ T name, H >in !
2056: THEN
2057: T cfalign here H tlastcfa !
2058: \ Old Symbol table sed-script
2059: \ >in @ cr ." sym:s/CFA=" there 4 0.r ." /" bl word count .sym ." /g" cr >in !
2060: HeaderGhost
2061: \ output symbol table to extra file
2062: [ [IFDEF] fd-symbol-table ]
2063: base @ hex there s>d <# 8 0 DO # LOOP #> fd-symbol-table write-file throw base !
2064: s" :" fd-symbol-table write-file throw
2065: dup >ghostname fd-symbol-table write-line throw
2066: [ [THEN] ]
2067: dup Last-Header-Ghost ! dup to lastghost
2068: dup >magic ^imm ! \ a pointer for immediate
2069: alias-mask flag!
2070: cross-doc-entry cross-tag-entry
2071: setup-execution-semantics
2072: ;
2073:
2074: \ this is the resolver information from ":"
2075: \ resolving is done by ";"
2076: Variable ;Resolve 1 cells allot
2077:
2078: : hereresolve ( ghost -- )
2079: there resolve 0 ;Resolve ! ;
2080:
2081: : Theader ( "name" -- ghost )
2082: (THeader dup hereresolve ;
2083:
2084: Variable aprim-nr -20 aprim-nr !
2085:
2086: : copy-execution-semantics ( ghost-from ghost-dest -- )
2087: >r
2088: dup >exec @ r@ >exec !
2089: dup >exec2 @ r@ >exec2 !
2090: dup >exec-compile @ r@ >exec-compile !
2091: dup >ghost-xt @ r@ >ghost-xt !
2092: dup >created @ r@ >created !
2093: rdrop drop ;
2094:
2095: >TARGET
2096:
2097: : Alias ( cfa -- ) \ name
2098: >in @ skip? IF 2drop EXIT THEN >in !
2099: (THeader ( S xt ghost )
2100: 2dup swap xt>ghost swap copy-execution-semantics
2101: over resolve T A, H alias-mask flag! ;
2102:
2103: Variable last-prim-ghost
2104: 0 last-prim-ghost !
2105:
2106: : asmprimname, ( ghost -- : name )
2107: dup last-prim-ghost !
2108: >r
2109: here bl word count string, r@ >asm-name !
2110: aprim-nr @ r> >asm-dummyaddr ! ;
2111:
2112: Defer setup-prim-semantics
2113:
2114: : mapprim ( "forthname" "asmlabel" -- )
2115: THeader -1 aprim-nr +! aprim-nr @ T A, H
2116: asmprimname,
2117: setup-prim-semantics ;
2118:
2119: : mapprim: ( "forthname" "asmlabel" -- )
2120: -1 aprim-nr +! aprim-nr @
2121: Ghost tuck swap resolve <do:> swap tuck >magic !
2122: asmprimname, ;
2123:
2124: : Alias: ( cfa -- ) \ name
2125: >in @ skip? IF 2drop EXIT THEN >in !
2126: dup 0< s" prims" T $has? H 0= and
2127: IF
2128: .sourcepos ." needs doer: " >in @ bl word count type >in ! cr
2129: THEN
2130: Ghost tuck swap resolve <do:> swap >magic ! ;
2131:
2132: Variable prim#
2133: : first-primitive ( n -- ) prim# ! ;
2134: : Primitive ( -- ) \ name
2135: >in @ skip? IF 2drop EXIT THEN >in !
2136: dup 0< s" prims" T $has? H 0= and
2137: IF
2138: .sourcepos ." needs prim: " >in @ bl word count type >in ! cr
2139: THEN
2140: prim# @ (THeader ( S xt ghost )
2141: dup >ghost-flags <primitive> set-flag
2142: over resolve T A, H alias-mask flag!
2143: -1 prim# +! ;
2144: >CROSS
2145:
2146: \ Conditionals and Comments 11may93jaw
2147:
2148: \G saves the existing cond action, this is used for redefining in
2149: \G instant
2150: Variable cond-xt-old
2151:
2152: : cond-target ( -- )
2153: \G Compiles semantic of redefined cond into new one
2154: cond-xt-old @ compile, ; immediate restrict
2155:
2156: : ;Cond
2157: postpone ;
2158: swap ! ; immediate
2159:
2160: : Cond: ( "name" -- )
2161: \g defines a conditional or another word that must
2162: \g be executed directly while compiling
2163: \g these words have no interpretative semantics by default
2164: Ghost
2165: >exec-compile
2166: dup @ cond-xt-old !
2167: :NONAME ;
2168:
2169:
2170: : Comment ( -- )
2171: >in @ Ghost swap >in ! ' swap
2172: 2dup >exec-compile ! >exec ! ;
2173:
2174: Comment ( Comment \
2175:
2176: \ compile 10may93jaw
2177:
2178: : compile ( "name" -- ) \ name
2179: \ bl word gfind 0= ABORT" CROSS: Can't compile "
2180: ghost
2181: dup >exec-compile @ ?dup
2182: IF nip compile,
2183: ELSE postpone literal postpone gexecute THEN ; immediate restrict
2184:
2185: >TARGET
2186:
2187: : ' ( -- xt )
2188: \G returns the target-cfa of a ghost
2189: bl word gfind 0= ABORT" CROSS: Ghost don't exists"
2190: g>xt ;
2191:
2192: \ FIXME: this works for the current use cases, but is not
2193: \ in all cases correct ;-)
2194: : comp' X ' 0 ;
2195:
2196: Cond: ['] T ' H alit, ;Cond
2197:
2198: >CROSS
2199:
2200: : [T']
2201: \ returns the target-cfa of a ghost, or compiles it as literal
2202: postpone [G'] state @ IF postpone g>xt ELSE g>xt THEN ; immediate
2203:
2204: \ \ threading modell 13dec92py
2205: \ modularized 14jun97jaw
2206:
2207: T 2 cells H Value xt>body
2208:
2209: : (>body) ( cfa -- pfa )
2210: xt>body + ; ' (>body) plugin-of t>body
2211:
2212: : fillcfa ( usedcells -- )
2213: T cells H xt>body swap -
2214: assert1( dup 0 >= )
2215: 0 ?DO 0 X c, tchar +LOOP ;
2216:
2217: : (doer,) ( ghost -- )
2218: addr, 1 fillcfa ; ' (doer,) plugin-of doer,
2219:
2220: : (docol,) ( -- ) [G'] :docol (doer,) ; ' (docol,) plugin-of docol,
2221:
2222: : (doprim,) ( -- )
2223: there xt>body + ca>native T a, H 1 fillcfa ; ' (doprim,) plugin-of doprim,
2224:
2225: : (doeshandler,) ( -- )
2226: T cfalign H compile :doesjump T 0 , H ; ' (doeshandler,) plugin-of doeshandler,
2227:
2228: : (dodoes,) ( does-action-ghost -- )
2229: ]comp [G'] :dodoes gexecute comp[
2230: addr,
2231: \ the relocator in the c engine, does not like the
2232: \ does-address to marked for relocation
2233: [ T e? ec H 0= [IF] ] T here H tcell - reloff [ [THEN] ]
2234: 2 fillcfa ; ' (dodoes,) plugin-of dodoes,
2235:
2236: : (dlit,) ( n -- ) compile lit td, ; ' (dlit,) plugin-of dlit,
2237:
2238: : (lit,) ( n -- ) s>d dlit, ; ' (lit,) plugin-of lit,
2239:
2240: \ if we dont produce relocatable code alit, defaults to lit, jaw
2241: \ this is just for convenience, so we don't have to define alit,
2242: \ seperately for embedded systems....
2243: T has? relocate H
2244: [IF]
2245: : (alit,) ( n -- ) compile lit T a, H ; ' (alit,) plugin-of alit,
2246: [ELSE]
2247: : (alit,) ( n -- ) lit, ; ' (alit,) plugin-of alit,
2248: [THEN]
2249:
2250: : (fini,) compile ;s ; ' (fini,) plugin-of fini,
2251:
2252: [IFUNDEF] (code)
2253: Defer (code)
2254: Defer (end-code)
2255: [THEN]
2256:
2257: >TARGET
2258: : Code
2259: defempty?
2260: (THeader there resolve
2261: [ T e? prims H 0= [IF] T e? ITC H [ELSE] true [THEN] ] [IF]
2262: doprim,
2263: [THEN]
2264: depth (code) ;
2265:
2266: : Code:
2267: defempty?
2268: Ghost dup there ca>native resolve <do:> swap >magic !
2269: depth (code) ;
2270:
2271: : end-code
2272: (end-code)
2273: depth ?dup IF 1- <> ABORT" CROSS: Stack changed"
2274: ELSE true ABORT" CROSS: Stack empty" THEN
2275: ;
2276:
2277: >CROSS
2278:
2279: \ tLiteral 12dec92py
2280:
2281: >TARGET
2282: Cond: \G T-\G ;Cond
2283:
2284: Cond: Literal ( n -- ) lit, ;Cond
2285: Cond: ALiteral ( n -- ) alit, ;Cond
2286:
2287: : Char ( "<char>" -- ) bl word char+ c@ ;
2288: Cond: [Char] ( "<char>" -- ) Char lit, ;Cond
2289:
2290: tchar 1 = [IF]
2291: Cond: chars ;Cond
2292: [THEN]
2293:
2294: \ some special literals 27jan97jaw
2295:
2296: \ !! Known Bug: Special Literals and plug-ins work only correct
2297: \ on 16 and 32 Bit Targets and 32 Bit Hosts!
2298:
2299: \ This section could be done with dlit, now. But first I need
2300: \ some test code JAW
2301:
2302: Cond: MAXU
2303: tcell 1 cells u>
2304: IF compile lit tcell 0 ?DO FF T c, H LOOP
2305: ELSE ffffffff lit, THEN
2306: ;Cond
2307:
2308: Cond: MINI
2309: tcell 1 cells u>
2310: IF compile lit bigendian
2311: IF 80 T c, H tcell 1 ?DO 0 T c, H LOOP
2312: ELSE tcell 1 ?DO 0 T c, H LOOP 80 T c, H
2313: THEN
2314: ELSE tcell 2 = IF 8000 ELSE 80000000 THEN lit, THEN
2315: ;Cond
2316:
2317: Cond: MAXI
2318: tcell 1 cells u>
2319: IF compile lit bigendian
2320: IF 7F T c, H tcell 1 ?DO FF T c, H LOOP
2321: ELSE tcell 1 ?DO FF T c, H LOOP 7F T c, H
2322: THEN
2323: ELSE tcell 2 = IF 7fff ELSE 7fffffff THEN lit, THEN
2324: ;Cond
2325:
2326: >CROSS
2327: \ Target compiling loop 12dec92py
2328: \ ">tib trick thrown out 10may93jaw
2329: \ number? defined at the top 11may93jaw
2330: \ replaced >in by save-input
2331:
2332: : discard 0 ?DO drop LOOP ;
2333:
2334: \ compiled word might leave items on stack!
2335: : tcom ( x1 .. xn n name -- )
2336: \ dup count type space
2337: gfind
2338: IF >r ( discard saved input state ) discard r>
2339: dup >exec-compile @ ?dup
2340: IF nip execute-exec-compile ELSE gexecute THEN
2341: EXIT
2342: THEN
2343: number? dup
2344: IF 0> IF swap lit, THEN lit, discard
2345: ELSE 2drop restore-input throw Ghost gexecute THEN ;
2346:
2347: >TARGET
2348: \ : ; DOES> 13dec92py
2349: \ ] 9may93py/jaw
2350:
2351: : compiling-state ( -- )
2352: \G set states to compililng
2353: Compiling comp-state !
2354: \ if we have a state in target, change it with the compile state
2355: [G'] state dup undefined? 0=
2356: IF >ghost-xt @ execute X on ELSE drop THEN ;
2357:
2358: : interpreting-state ( -- )
2359: \G set states to interpreting
2360: \ if target has a state variable, change it according to our state
2361: [G'] state dup undefined? 0=
2362: IF >ghost-xt @ execute X off ELSE drop THEN
2363: Interpreting comp-state ! ;
2364:
2365: : ]
2366: compiling-state
2367: BEGIN
2368: BEGIN save-input bl word
2369: dup c@ 0= WHILE drop discard refill 0=
2370: ABORT" CROSS: End of file while target compiling"
2371: REPEAT
2372: tcom
2373: compiling? 0=
2374: UNTIL ;
2375:
2376: \ by the way: defining a second interpreter (a compiler-)loop
2377: \ is not allowed if a system should be ans conform
2378:
2379: : (:) ( ghost -- )
2380: \ common factor of : and :noname. Prepare ;Resolve and start definition
2381: ;Resolve ! there ;Resolve cell+ !
2382: docol, ]comp colon-start depth T ] H ;
2383:
2384: : : ( -- colon-sys ) \ Name
2385: defempty?
2386: constflag off \ don't let this flag work over colon defs
2387: \ just to go sure nothing unwanted happens
2388: >in @ skip? IF drop skip-defs EXIT THEN >in !
2389: (THeader (:) ;
2390:
2391: : :noname ( -- colon-sys )
2392: X cfalign there
2393: \ define a nameless ghost
2394: here ghostheader dup last-header-ghost ! dup to lastghost
2395: (:) ;
2396:
2397: Cond: EXIT ( -- ) compile ;S ;Cond
2398:
2399: Cond: ?EXIT ( -- ) 1 abort" CROSS: using ?exit" ;Cond
2400:
2401: >CROSS
2402: : LastXT ;Resolve @ 0= abort" CROSS: no definition for LastXT"
2403: ;Resolve cell+ @ ;
2404:
2405: >TARGET
2406:
2407: Cond: recurse ( -- ) Last-Header-Ghost @ gexecute ;Cond
2408:
2409: Cond: ; ( -- )
2410: depth ?dup
2411: IF 1- <> ABORT" CROSS: Stack changed"
2412: ELSE true ABORT" CROSS: Stack empty"
2413: THEN
2414: colon-end
2415: fini,
2416: comp[
2417: ;Resolve @
2418: IF ;Resolve @ ;Resolve cell+ @ resolve
2419: ['] colon-resolved ;Resolve @ >comp !
2420: THEN
2421: interpreting-state
2422: ;Cond
2423:
2424: Cond: [ ( -- ) interpreting-state ;Cond
2425:
2426: >CROSS
2427:
2428: Create GhostDummy ghostheader
2429: <res> GhostDummy >magic !
2430:
2431: : !does ( does-action -- )
2432: \ !! zusammenziehen und dodoes, machen!
2433: tlastcfa @ [G'] :dovar killref
2434: \ tlastcfa @ dup there >r tdp ! compile :dodoes r> tdp ! T cell+ ! H ;
2435: \ !! geht so nicht, da dodoes, ghost will!
2436: GhostDummy >link ! GhostDummy
2437: tlastcfa @ >tempdp dodoes, tempdp> ;
2438:
2439:
2440: Defer instant-interpret-does>-hook
2441:
2442: : resolve-does>-part ( -- )
2443: \ resolve words made by builders
2444: Last-Header-Ghost @ >do:ghost @ ?dup
2445: IF there resolve
2446: \ TODO: set special DOES> resolver action here
2447: THEN ;
2448:
2449: >TARGET
2450: Cond: DOES>
2451: compile (does>) doeshandler,
2452: resolve-does>-part
2453: ;Cond
2454:
2455: : DOES> switchrom doeshandler, T here H !does
2456: instant-interpret-does>-hook
2457: depth T ] H ;
2458:
2459: >CROSS
2460: \ Creation 01nov92py
2461:
2462: \ Builder 11may93jaw
2463:
2464: 0 Value built
2465:
2466: : Builder ( Create-xt do-ghost "name" -- )
2467: \ builds up a builder in current vocabulary
2468: \ create-xt is executed when word is interpreted
2469: \ do:-xt is executed when the created word from builder is executed
2470: \ for do:-xt an additional entry after the normal ghost-entrys is used
2471:
2472: ghost to built
2473: built >created @ 0= IF
2474: built >created on
2475: ['] prim-resolved built >comp !
2476: THEN ;
2477:
2478: : gdoes, ( ghost -- )
2479: \ makes the codefield for a word that is built
2480: >do:ghost @ dup undefined? 0=
2481: IF
2482: dup >magic @ <do:> =
2483: IF doer,
2484: ELSE dodoes,
2485: THEN
2486: EXIT
2487: THEN
2488: \ compile :dodoes gexecute
2489: \ T here H tcell - reloff
2490: 2 refered
2491: 0 fillcfa
2492: ;
2493:
2494: : takeover-x-semantics ( S constructor-ghost new-ghost -- )
2495: \g stores execution semantic and compilation semantic in the built word
2496: swap >do:ghost @
2497: \ we use the >exec2 field for the semantic of a created word,
2498: \ using exec or exec2 makes no difference for normal cross-compilation
2499: \ but is usefull for instant where the exec field is already
2500: \ defined (e.g. Vocabularies)
2501: 2dup >exec @ swap >exec2 !
2502: >comp @ swap >comp ! ;
2503:
2504: : TCreate ( <name> -- )
2505: create-forward-warn
2506: IF ['] reswarn-forward IS resolve-warning THEN
2507: executed-ghost @ (Theader
2508: dup >created on
2509: 2dup takeover-x-semantics hereresolve gdoes, ;
2510:
2511: : RTCreate ( <name> -- )
2512: \ creates a new word with code-field in ram
2513: create-forward-warn
2514: IF ['] reswarn-forward IS resolve-warning THEN
2515: \ make Alias
2516: executed-ghost @ (THeader
2517: dup >created on
2518: 2dup takeover-x-semantics
2519: there 0 T a, H alias-mask flag!
2520: \ store poiter to code-field
2521: switchram T cfalign H
2522: there swap T ! H
2523: there tlastcfa !
2524: hereresolve gdoes, ;
2525:
2526: : Build: ( -- [xt] [colon-sys] )
2527: :noname postpone TCreate ;
2528:
2529: : BuildSmart: ( -- [xt] [colon-sys] )
2530: :noname
2531: [ T has? rom H [IF] ]
2532: postpone RTCreate
2533: [ [ELSE] ]
2534: postpone TCreate
2535: [ [THEN] ] ;
2536:
2537: : ;Build
2538: postpone ; built >exec ! ; immediate
2539:
2540: : gdoes> ( ghost -- addr flag )
2541: executed-ghost @ g>body ;
2542:
2543: \ DO: ;DO 11may93jaw
2544:
2545: : do:ghost! ( ghost -- ) built >do:ghost ! ;
2546: : doexec! ( xt -- ) built >do:ghost @ >exec ! ;
2547:
2548: : DO: ( -- [xt] [colon-sys] )
2549: here ghostheader do:ghost!
2550: :noname postpone gdoes> ;
2551:
2552: : by: ( -- [xt] [colon-sys] ) \ name
2553: Ghost do:ghost!
2554: :noname postpone gdoes> ;
2555:
2556: : ;DO ( [xt] [colon-sys] -- )
2557: postpone ; doexec! ; immediate
2558:
2559: : by ( -- ) \ Name
2560: Ghost >do:ghost @ do:ghost! ;
2561:
2562: : compile: ( --[xt] [colon-sys] )
2563: \G defines a compile time action for created words
2564: \G by this builder
2565: :noname ;
2566:
2567: : ;compile ( [xt] [colon-sys] -- )
2568: postpone ; built >do:ghost @ >comp ! ; immediate
2569:
2570: \ Variables and Constants 05dec92py
2571:
2572: Builder (Constant)
2573: Build: ( n -- ) ;Build
2574: by: :docon ( target-body-addr -- n ) T @ H ;DO
2575:
2576: Builder Constant
2577: Build: ( n -- ) T , H ;Build
2578: by (Constant)
2579:
2580: Builder AConstant
2581: Build: ( n -- ) T A, H ;Build
2582: by (Constant)
2583:
2584: Builder 2Constant
2585: Build: ( d -- ) T , , H ;Build
2586: DO: ( ghost -- d ) T dup cell+ @ swap @ H ;DO
2587:
2588: Builder Create
2589: BuildSmart: ;Build
2590: by: :dovar ( target-body-addr -- addr ) ;DO
2591:
2592: Builder Variable
2593: T has? rom H [IF]
2594: Build: ( -- ) T here 0 A, H switchram T align here swap ! 0 , H ( switchrom ) ;Build
2595: by (Constant)
2596: [ELSE]
2597: Build: T 0 , H ;Build
2598: by Create
2599: [THEN]
2600:
2601: Builder 2Variable
2602: T has? rom H [IF]
2603: Build: ( -- ) T here 0 A, H switchram T align here swap ! 0 , 0 , H ( switchrom ) ;Build
2604: by (Constant)
2605: [ELSE]
2606: Build: T 0 , 0 , H ;Build
2607: by Create
2608: [THEN]
2609:
2610: Builder AVariable
2611: T has? rom H [IF]
2612: Build: ( -- ) T here 0 A, H switchram T align here swap ! 0 A, H ( switchrom ) ;Build
2613: by (Constant)
2614: [ELSE]
2615: Build: T 0 A, H ;Build
2616: by Create
2617: [THEN]
2618:
2619: \ User variables 04may94py
2620:
2621: Variable tup 0 tup !
2622: Variable tudp 0 tudp !
2623:
2624: : u, ( n -- udp )
2625: tup @ tudp @ + T ! H
2626: tudp @ dup T cell+ H tudp ! ;
2627:
2628: : au, ( n -- udp )
2629: tup @ tudp @ + T A! H
2630: tudp @ dup T cell+ H tudp ! ;
2631:
2632: Builder User
2633: Build: 0 u, X , ;Build
2634: by: :douser ( ghost -- up-addr ) X @ tup @ + ;DO
2635:
2636: Builder 2User
2637: Build: 0 u, X , 0 u, drop ;Build
2638: by User
2639:
2640: Builder AUser
2641: Build: 0 au, X , ;Build
2642: by User
2643:
2644: Builder (Value)
2645: Build: ( n -- ) ;Build
2646: by: :docon ( target-body-addr -- n ) T @ H ;DO
2647:
2648: Builder Value
2649: BuildSmart: T , H ;Build
2650: by (Value)
2651:
2652: Builder AValue
2653: BuildSmart: T A, H ;Build
2654: by (Value)
2655:
2656: Defer texecute
2657:
2658: Builder Defer
2659: BuildSmart: ( -- ) [T'] noop T A, H ;Build
2660: by: :dodefer ( ghost -- ) X @ texecute ;DO
2661:
2662: Builder interpret/compile:
2663: Build: ( inter comp -- ) swap T immediate A, A, H ;Build
2664: DO: ( ghost -- ) ABORT" CROSS: Don't execute" ;DO
2665:
2666: \ Sturctures 23feb95py
2667:
2668: : nalign ( addr1 n -- addr2 )
2669: \ addr2 is the aligned version of addr1 wrt the alignment size n
2670: 1- tuck + swap invert and ;
2671:
2672:
2673: Builder (Field)
2674: Build: ;Build
2675: by: :dofield T @ H + ;DO
2676:
2677: Builder Field
2678: Build: ( align1 offset1 align size "name" -- align2 offset2 )
2679: rot dup T , H ( align1 align size offset1 )
2680: + >r nalign r> ;Build
2681: by (Field)
2682:
2683: >TARGET
2684: : struct T 1 chars 0 H ;
2685: : end-struct T 2Constant H ;
2686:
2687: : cell% ( n -- size align )
2688: T 1 cells H dup ;
2689: >CROSS
2690:
2691: \ Input-Methods 01py
2692:
2693: Builder input-method
2694: Build: ( m v -- m' v ) dup T , cell+ H ;Build
2695: DO: abort" Not in cross mode" ;DO
2696:
2697: Builder input-var
2698: Build: ( m v size -- m v' ) over T , H + ;Build
2699: DO: abort" Not in cross mode" ;DO
2700:
2701: \ Peephole optimization 05sep01jaw
2702:
2703: \ this section defines different compilation
2704: \ actions for created words
2705: \ this will help the peephole optimizer
2706: \ I (jaw) took this from bernds lates cross-compiler
2707: \ changes but seperated it from the original
2708: \ Builder words. The final plan is to put this
2709: \ into a seperate file, together with the peephole
2710: \ optimizer for cross
2711:
2712:
2713: T has? peephole H [IF]
2714:
2715: >CROSS
2716: : (callc) compile call T >body a, H ; ' (callc) plugin-of colon,
2717:
2718: \ if we want this, we have to spilt aconstant
2719: \ and constant!!
2720: \ Builder (Constant)
2721: \ compile: g>body X @ lit, ;compile
2722:
2723: Builder (Constant)
2724: compile: g>body alit, compile @ ;compile
2725:
2726: Builder (Value)
2727: compile: g>body alit, compile @ ;compile
2728:
2729: \ this changes also Variable, AVariable and 2Variable
2730: Builder Create
2731: \ compile: g>body alit, ;compile
2732:
2733: Builder User
2734: compile: g>body compile useraddr T @ , H ;compile
2735:
2736: Builder Defer
2737: compile: g>body alit, compile @ compile execute ;compile
2738:
2739: Builder (Field)
2740: compile: g>body T @ H lit, compile + ;compile
2741:
2742: [THEN]
2743:
2744: \ structural conditionals 17dec92py
2745:
2746: >CROSS
2747: : (ncontrols?) ( n -- )
2748: \g We expect n open control structures
2749: depth over u<=
2750: ABORT" CROSS: unstructured, stack underflow"
2751: 0 ?DO I pick 0=
2752: ABORT" CROSS: unstructured"
2753: LOOP ; ' (ncontrols?) plugin-of ncontrols?
2754:
2755: \ : ?struc ( flag -- ) ABORT" CROSS: unstructured " ;
2756: \ : sys? ( sys -- sys ) dup 0= ?struc ;
2757:
2758: : >mark ( -- sys ) T here ( dup ." M" hex. ) 0 , H ;
2759:
2760: : branchoffset ( src dest -- ) - tchar / ; \ ?? jaw
2761:
2762: : >resolve ( sys -- )
2763: X here ( dup ." >" hex. ) over branchoffset swap X ! ;
2764:
2765: : <resolve ( sys -- )
2766: X here ( dup ." <" hex. ) branchoffset X , ;
2767:
2768: :noname compile branch X here branchoffset X , ;
2769: IS branch, ( target-addr -- )
2770: :noname compile ?branch X here branchoffset X , ;
2771: IS ?branch, ( target-addr -- )
2772: :noname compile branch T here 0 , H ;
2773: IS branchmark, ( -- branchtoken )
2774: :noname compile ?branch T here 0 , H ;
2775: IS ?branchmark, ( -- branchtoken )
2776: :noname T here 0 , H ;
2777: IS ?domark, ( -- branchtoken )
2778: :noname dup X @ ?struc X here over branchoffset swap X ! ;
2779: IS branchtoresolve, ( branchtoken -- )
2780: :noname branchto, X here ;
2781: IS branchtomark, ( -- target-addr )
2782:
2783: >TARGET
2784:
2785: \ Structural Conditionals 12dec92py
2786:
2787: \ CLEANUP Cond: BUT sys? swap ;Cond
2788: \ CLEANUP Cond: YET sys? dup ;Cond
2789:
2790: >CROSS
2791:
2792: Variable tleavings 0 tleavings !
2793:
2794: : (done) ( addr -- )
2795: tleavings @
2796: BEGIN dup
2797: WHILE
2798: >r dup r@ cell+ @ \ address of branch
2799: u> 0= \ lower than DO?
2800: WHILE
2801: r@ 2 cells + @ \ branch token
2802: branchtoresolve,
2803: r@ @ r> free throw
2804: REPEAT r> THEN
2805: tleavings ! drop ;
2806:
2807: >TARGET
2808:
2809: \ What for? ANS? JAW Cond: DONE ( addr -- ) (done) ;Cond
2810:
2811: >CROSS
2812: : (leave) ( branchtoken -- )
2813: 3 cells allocate throw >r
2814: T here H r@ cell+ !
2815: r@ 2 cells + !
2816: tleavings @ r@ !
2817: r> tleavings ! ;
2818: >TARGET
2819:
2820: : (leave,) ( -- )
2821: branchmark, (leave) ; ' (leave,) plugin-of leave,
2822:
2823: : (?leave,) ( -- )
2824: compile 0= ?branchmark, (leave) ; ' (?leave,) plugin-of ?leave,
2825:
2826: Cond: LEAVE leave, ;Cond
2827: Cond: ?LEAVE ?leave, ;Cond
2828:
2829: >CROSS
2830: \ !!JW ToDo : Move to general tools section
2831:
2832: : to1 ( x1 x2 xn n -- addr )
2833: \G packs n stack elements in am allocated memory region
2834: dup dup 1+ cells allocate throw dup >r swap 1+
2835: 0 DO tuck ! cell+ LOOP
2836: drop r> ;
2837:
2838: : 1to ( addr -- x1 x2 xn )
2839: \G unpacks the elements saved by to1
2840: dup @ swap over cells + swap
2841: 0 DO dup @ swap 1 cells - LOOP
2842: free throw ;
2843:
2844: : loop] branchto, dup <resolve tcell - (done) ;
2845:
2846: : skiploop] ?dup IF branchto, branchtoresolve, THEN ;
2847:
2848: >TARGET
2849:
2850: \ Structural Conditionals 12dec92py
2851:
2852: : (cs-swap) ( x1 x2 -- x2 x1 )
2853: swap ; ' (cs-swap) plugin-of cs-swap
2854:
2855: : (ahead,) branchmark, ; ' (ahead,) plugin-of ahead,
2856:
2857: : (if,) ?branchmark, ; ' (if,) plugin-of if,
2858:
2859: : (then,) branchto, branchtoresolve, ; ' (then,) plugin-of then,
2860:
2861: : (else,) ( ahead ) branchmark,
2862: swap
2863: ( then ) branchto, branchtoresolve, ; ' (else,) plugin-of else,
2864:
2865: : (begin,) branchtomark, ; ' (begin,) plugin-of begin,
2866:
2867: : (while,) ( if ) ?branchmark,
2868: swap ; ' (while,) plugin-of while,
2869:
2870: : (again,) branch, ; ' (again,) plugin-of again,
2871:
2872: : (until,) ?branch, ; ' (until,) plugin-of until,
2873:
2874: : (repeat,) ( again ) branch,
2875: ( then ) branchto, branchtoresolve, ; ' (repeat,) plugin-of repeat,
2876:
2877: : (case,) ( -- n )
2878: 0 ; ' (case,) plugin-of case,
2879:
2880: : (of,) ( n -- x1 n )
2881: 1+ >r
2882: compile over compile =
2883: if, compile drop r> ; ' (of,) plugin-of of,
2884:
2885: : (endof,) ( x1 n -- x2 n )
2886: >r 1 ncontrols? else, r> ; ' (endof,) plugin-of endof,
2887:
2888: : (endcase,) ( x1 .. xn n -- )
2889: compile drop 0 ?DO 1 ncontrols? then, LOOP ; ' (endcase,) plugin-of endcase,
2890:
2891: >TARGET
2892: Cond: AHEAD ahead, ;Cond
2893: Cond: IF if, ;Cond
2894: Cond: THEN 1 ncontrols? then, ;Cond
2895: Cond: ENDIF 1 ncontrols? then, ;Cond
2896: Cond: ELSE 1 ncontrols? else, ;Cond
2897:
2898: Cond: BEGIN begin, ;Cond
2899: Cond: WHILE 1 ncontrols? while, ;Cond
2900: Cond: AGAIN 1 ncontrols? again, ;Cond
2901: Cond: UNTIL 1 ncontrols? until, ;Cond
2902: Cond: REPEAT 2 ncontrols? repeat, ;Cond
2903:
2904: Cond: CASE case, ;Cond
2905: Cond: OF of, ;Cond
2906: Cond: ENDOF endof, ;Cond
2907: Cond: ENDCASE endcase, ;Cond
2908:
2909: \ Structural Conditionals 12dec92py
2910:
2911: : (do,) ( -- target-addr )
2912: \ ?? i think 0 is too much! jaw
2913: 0 compile (do)
2914: branchtomark, 2 to1 ; ' (do,) plugin-of do,
2915:
2916: \ alternative for if no ?do
2917: \ : (do,)
2918: \ compile 2dup compile = compile IF
2919: \ compile 2drop compile ELSE
2920: \ compile (do) branchtomark, 2 to1 ;
2921:
2922: : (?do,) ( -- target-addr )
2923: 0 compile (?do) ?domark, (leave)
2924: branchtomark, 2 to1 ; ' (?do,) plugin-of ?do,
2925:
2926: : (for,) ( -- target-addr )
2927: compile (for) branchtomark, ; ' (for,) plugin-of for,
2928:
2929: : (loop,) ( target-addr -- )
2930: 1to compile (loop) loop]
2931: compile unloop skiploop] ; ' (loop,) plugin-of loop,
2932:
2933: : (+loop,) ( target-addr -- )
2934: 1to compile (+loop) loop]
2935: compile unloop skiploop] ; ' (+loop,) plugin-of +loop,
2936:
2937: : (next,)
2938: compile (next) loop] compile unloop ; ' (next,) plugin-of next,
2939:
2940: Cond: DO do, ;Cond
2941: Cond: ?DO ?do, ;Cond
2942: Cond: FOR for, ;Cond
2943:
2944: Cond: LOOP 1 ncontrols? loop, ;Cond
2945: Cond: +LOOP 1 ncontrols? +loop, ;Cond
2946: Cond: NEXT 1 ncontrols? next, ;Cond
2947:
2948: \ String words 23feb93py
2949:
2950: : ," [char] " parse ht-string, X align ;
2951:
2952: Cond: ." compile (.") T ," H ;Cond
2953: Cond: S" compile (S") T ," H ;Cond
2954: Cond: C" compile (C") T ," H ;Cond
2955: Cond: ABORT" compile (ABORT") T ," H ;Cond
2956:
2957: Cond: IS T ' >body H compile ALiteral compile ! ;Cond
2958: : IS T >address ' >body ! H ;
2959: Cond: TO T ' >body H compile ALiteral compile ! ;Cond
2960: : TO T ' >body ! H ;
2961:
2962: Cond: defers T ' >body @ compile, H ;Cond
2963:
2964: \ LINKED ERR" ENV" 2ENV" 18may93jaw
2965:
2966: \ linked list primitive
2967: : linked X here over X @ X A, swap X ! ;
2968: : chained T linked A, H ;
2969:
2970: : err" s" ErrLink linked" evaluate T , H
2971: [char] " parse ht-string, X align ;
2972:
2973: : env" [char] " parse s" EnvLink linked" evaluate
2974: ht-string, X align X , ;
2975:
2976: : 2env" [char] " parse s" EnvLink linked" evaluate
2977: here >r ht-string, X align X , X ,
2978: r> dup T c@ H 80 and swap T c! H ;
2979:
2980: \ compile must be last 22feb93py
2981:
2982: Cond: [compile] ( -- ) \ name
2983: \g For immediate words, works even if forward reference
2984: bl word gfind 0= ABORT" CROSS: Can't compile"
2985: (gexecute) ;Cond
2986:
2987: Cond: postpone ( -- ) \ name
2988: bl word gfind 0= ABORT" CROSS: Can't compile"
2989: dup >magic @ <fwd> =
2990: ABORT" CROSS: Can't postpone on forward declaration"
2991: dup >magic @ <imm> =
2992: IF (gexecute)
2993: ELSE compile (compile) addr, THEN ;Cond
2994:
2995: \ save-cross 17mar93py
2996:
2997: hex
2998:
2999: >CROSS
3000: Create magic s" Gforth2x" here over allot swap move
3001:
3002: bigendian 1+ \ strangely, in magic big=0, little=1
3003: tcell 1 = 0 and or
3004: tcell 2 = 2 and or
3005: tcell 4 = 4 and or
3006: tcell 8 = 6 and or
3007: tchar 1 = 00 and or
3008: tchar 2 = 28 and or
3009: tchar 4 = 50 and or
3010: tchar 8 = 78 and or
3011: magic 7 + c!
3012:
3013: : save-cross ( "image-name" "binary-name" -- )
3014: bl parse ." Saving to " 2dup type cr
3015: w/o bin create-file throw >r
3016: s" header" X $has? IF
3017: s" #! " r@ write-file throw
3018: bl parse r@ write-file throw
3019: s" --image-file" r@ write-file throw
3020: #lf r@ emit-file throw
3021: r@ dup file-position throw drop 8 mod 8 swap ( file-id limit index )
3022: ?do
3023: bl over emit-file throw
3024: loop
3025: drop
3026: magic 8 r@ write-file throw \ write magic
3027: ELSE
3028: bl parse 2drop
3029: THEN
3030: image @ there
3031: r@ write-file throw \ write image
3032: s" relocate" X $has? IF
3033: bit$ @ there 1- tcell>bit rshift 1+
3034: r@ write-file throw \ write tags
3035: THEN
3036: r> close-file throw ;
3037:
3038: : save-region ( addr len -- )
3039: bl parse w/o bin create-file throw >r
3040: swap >image swap r@ write-file throw
3041: r> close-file throw ;
3042:
3043: \ save-asm-region 29aug01jaw
3044:
3045: Variable name-ptr
3046: Create name-buf 200 chars allot
3047: : init-name-buf name-buf name-ptr ! ;
3048: : nb, name-ptr @ c! 1 chars name-ptr +! ;
3049: : $nb, ( adr len -- ) bounds ?DO I c@ nb, LOOP ;
3050: : @nb name-ptr @ name-buf tuck - ;
3051:
3052: \ stores a usefull string representation of the character
3053: \ in the name buffer
3054: : name-char, ( c -- )
3055: dup 'a 'z 1+ within IF nb, EXIT THEN
3056: dup 'A 'Z 1+ within IF $20 + nb, EXIT THEN
3057: dup '0 '9 1+ within IF nb, EXIT THEN
3058: CASE '+ OF s" _PLUS" $nb, ENDOF
3059: '- OF s" _MINUS" $nb, ENDOF
3060: '* OF s" _STAR" $nb, ENDOF
3061: '/ OF s" _SLASH" $nb, ENDOF
3062: '' OF s" _TICK" $nb, ENDOF
3063: '( OF s" _OPAREN" $nb, ENDOF
3064: ') OF s" _CPAREN" $nb, ENDOF
3065: '[ OF s" _OBRACKET" $nb, ENDOF
3066: '] OF s" _CBRACKET" $nb, ENDOF
3067: '! OF s" _STORE" $nb, ENDOF
3068: '@ OF s" _FETCH" $nb, ENDOF
3069: '> OF s" _GREATER" $nb, ENDOF
3070: '< OF s" _LESS" $nb, ENDOF
3071: '= OF s" _EQUAL" $nb, ENDOF
3072: '# OF s" _HASH" $nb, ENDOF
3073: '? OF s" _QUEST" $nb, ENDOF
3074: ': OF s" _COL" $nb, ENDOF
3075: '; OF s" _SEMICOL" $nb, ENDOF
3076: ', OF s" _COMMA" $nb, ENDOF
3077: '. OF s" _DOT" $nb, ENDOF
3078: '" OF s" _DQUOT" $nb, ENDOF
3079: dup
3080: base @ >r hex s>d <# #s 'X hold '_ hold #> $nb, r> base !
3081: ENDCASE ;
3082:
3083: : label-from-ghostname ( ghost -- addr len )
3084: dup >ghostname init-name-buf 'L nb, bounds
3085: ?DO I c@ name-char, LOOP
3086: \ we add the address to a name to make in unique
3087: \ because one name may appear more then once
3088: \ there are names (e.g. boot) that may be reference from other
3089: \ assembler source files, so we declare them as unique
3090: \ and don't add the address suffix
3091: dup >ghost-flags @ <unique> and 0=
3092: IF s" __" $nb, >link @ base @ >r hex 0 <# #s 'L hold #> r> base ! $nb,
3093: ELSE drop
3094: THEN
3095: @nb ;
3096:
3097: \ FIXME why disabled?!
3098: : label-from-ghostnameXX ( ghost -- addr len )
3099: \ same as (label-from-ghostname) but caches generated names
3100: dup >asm-name @ ?dup IF nip count EXIT THEN
3101: \ dup >r (label-from-ghostname) 2dup
3102: align here >r string, align
3103: r> r> >asm-name ! ;
3104:
3105: : primghostdiscover ( xt -- ghost true | xt false )
3106: dup 0= IF false EXIT THEN
3107: >r last-prim-ghost
3108: BEGIN @ dup
3109: WHILE dup >asm-dummyaddr @ r@ =
3110: IF rdrop true EXIT THEN
3111: REPEAT
3112: drop r> false ;
3113:
3114: : gdiscover2 ( xt -- ghost true | xt false )
3115: dup taddr>region 0= IF false EXIT THEN
3116: dup (>regiontype) @ dup 0= IF drop false EXIT THEN
3117: addr-xt-ghost @ dup 0= IF drop false EXIT THEN
3118: nip true ;
3119: \ dup >ghost-name @ IF nip true ELSE drop false THEN ;
3120:
3121: \ generates a label name for the target address
3122: : generate-label-name ( taddr -- addr len )
3123: gdiscover2
3124: IF dup >magic @ <do:> =
3125: IF >asm-name @ count EXIT THEN
3126: label-from-ghostname
3127: ELSE
3128: primghostdiscover
3129: IF >asm-name @ count
3130: ELSE base @ >r hex 0 <# #s 'L hold #> r> base !
3131: THEN
3132: THEN ;
3133:
3134: Variable outfile-fd
3135:
3136: : $out ( adr len -- ) outfile-fd @ write-file throw ;
3137: : nlout newline $out ;
3138: : .ux ( n -- )
3139: base @ hex swap 0 <# #S #> $out base ! ;
3140:
3141: : save-asm-region-part-aligned ( taddr len -- 'taddr 'len )
3142: dup cell/ 0
3143: ?DO nlout s" .word " $out over @relbit
3144: IF over X @ generate-label-name $out
3145: ELSE over X @ s" 0x0" $out .ux
3146: THEN
3147: tcell /string
3148: LOOP ;
3149:
3150: : print-bytes ( taddr len n -- taddr' len' )
3151: over min dup 0>
3152: IF nlout s" .byte " $out 0
3153: ?DO I 0> IF s" , " $out THEN
3154: over X c@ s" 0x0" $out .ux 1 /string
3155: LOOP
3156: THEN ;
3157:
3158: : save-asm-region-part ( addr len -- )
3159: over dup X aligned swap - ?dup
3160: IF print-bytes THEN
3161: save-asm-region-part-aligned
3162: dup dup X aligned swap - ?dup
3163: IF 2 pick @relbit ABORT" relocated field splitted"
3164: print-bytes
3165: THEN
3166: 2drop ;
3167:
3168: : print-label ( taddr -- )
3169: nlout generate-label-name $out s" :" $out ;
3170:
3171: : snl-calc ( taddr taddr2 -- )
3172: tuck over - ;
3173:
3174: : skip-nolables ( taddr -- taddr2 taddr len )
3175: \G skips memory region where no lables are defined
3176: \G starting from taddr+1
3177: \G Labels will be introduced for each reference mark
3178: \G in addr-refs.
3179: \G This word deals with lables at byte addresses as well.
3180: \G The main idea is to have an intro part which
3181: \G skips until the next cell boundary, the middle part
3182: \G which skips whole cells very efficiently and the third
3183: \G part which skips the bytes to the label in a cell
3184: dup 1+ dup (>regiontype)
3185: ( S taddr taddr-realstart type-addr )
3186: dup @ dup IF addr-refs @ THEN
3187: swap >r
3188: over align+ tuck tcell swap - rshift swap 0
3189: DO dup 1 and
3190: IF drop rdrop snl-calc UNLOOP EXIT THEN
3191: 2/ swap 1+ swap
3192: LOOP
3193: drop r> cell+
3194: ( S .. taddr2 type-addr ) dup
3195: BEGIN dup @ dup IF addr-refs @ THEN 0= WHILE cell+ REPEAT
3196: dup >r swap - 1 cells / tcell * + r>
3197: ( S .. taddr2+skiplencells type-addr )
3198: @ addr-refs @ 1 tcell lshift or
3199: BEGIN dup 1 and 0= WHILE swap 1+ swap 2/ REPEAT drop
3200: ( S .. taddr2+skiplencells+skiplenbytes )
3201: snl-calc ;
3202:
3203: : insert-label ( taddr -- )
3204: dup 0= IF drop EXIT THEN
3205: \ ignore everything which points outside our memory regions
3206: \ maybe a primitive pointer or whatever
3207: dup taddr>region 0= IF drop EXIT THEN
3208: dup >r (>regiontype) define-addr-struct addr-refs dup @
3209: r> tcell 1- and 1 swap lshift or swap ! ;
3210:
3211: \ this generates a sorted list of addresses which must be labels
3212: \ it scans therefore a whole region
3213: : generate-label-list-region ( taddr len -- )
3214: BEGIN over @relbit IF over X @ insert-label THEN
3215: tcell /string dup 0<
3216: UNTIL 2drop ;
3217:
3218: : generate-label-list ( -- )
3219: region-link
3220: BEGIN @ dup WHILE
3221: dup 0 >rlink - extent
3222: ?dup IF generate-label-list-region ELSE drop THEN
3223: REPEAT drop ;
3224:
3225: : create-outfile ( addr len -- )
3226: w/o bin create-file throw outfile-fd ! ;
3227:
3228: : close-outfile ( -- )
3229: outfile-fd @ close-file throw ;
3230:
3231: : (save-asm-region) ( region -- )
3232: \ ." label list..."
3233: generate-label-list
3234: \ ." ok!" cr
3235: extent ( S taddr len )
3236: over insert-label
3237: 2dup + dup insert-label >r ( R end-label )
3238: ( S taddr len ) drop
3239: BEGIN
3240: dup print-label
3241: dup r@ <> WHILE
3242: skip-nolables save-asm-region-part
3243: REPEAT drop rdrop ;
3244:
3245: : lineout ( addr len -- )
3246: outfile-fd @ write-line throw ;
3247:
3248: : save-asm-region ( region adr len -- )
3249: create-outfile (save-asm-region) close-outfile ;
3250:
3251: \ \ minimal definitions
3252:
3253: >MINIMAL also minimal
3254:
3255: \ Usefull words 13feb93py
3256:
3257: : KB 400 * ;
3258:
3259: \ \ [IF] [ELSE] [THEN] ... 14sep97jaw
3260:
3261: \ it is useful to define our own structures and not to rely
3262: \ on the words in the host system
3263: \ The words in the host system might be defined with vocabularies
3264: \ this doesn't work with our self-made compile-loop
3265:
3266: Create parsed 20 chars allot \ store word we parsed
3267:
3268: : upcase
3269: parsed count bounds
3270: ?DO I c@ toupper I c! LOOP ;
3271:
3272: : [ELSE]
3273: 1 BEGIN
3274: BEGIN bl word count dup WHILE
3275: comment? 20 umin parsed place upcase parsed count
3276: 2dup s" [IF]" compare 0= >r
3277: 2dup s" [IFUNDEF]" compare 0= >r
3278: 2dup s" [IFDEF]" compare 0= r> or r> or
3279: IF 2drop 1+
3280: ELSE 2dup s" [ELSE]" compare 0=
3281: IF 2drop 1- dup
3282: IF 1+
3283: THEN
3284: ELSE
3285: 2dup s" [ENDIF]" compare 0= >r
3286: s" [THEN]" compare 0= r> or
3287: IF 1- THEN
3288: THEN
3289: THEN
3290: ?dup 0= ?EXIT
3291: REPEAT
3292: 2drop refill 0=
3293: UNTIL drop ; immediate
3294:
3295: : [THEN] ( -- ) ; immediate
3296:
3297: : [ENDIF] ( -- ) ; immediate
3298:
3299: : [IF] ( flag -- )
3300: 0= IF postpone [ELSE] THEN ; immediate
3301:
3302: Cond: [IF] postpone [IF] ;Cond
3303: Cond: [THEN] postpone [THEN] ;Cond
3304: Cond: [ELSE] postpone [ELSE] ;Cond
3305:
3306: \ define new [IFDEF] and [IFUNDEF] 20may93jaw
3307:
3308: : defined? tdefined? ;
3309: : needed? needed? ;
3310: : doer? doer? ;
3311:
3312: \ we want to use IFDEF on compiler directives (e.g. E?) in the source, too
3313:
3314: : directive?
3315: bl word count [ ' target >wordlist ] literal search-wordlist
3316: dup IF nip THEN ;
3317:
3318: : [IFDEF] >in @ directive? swap >in !
3319: 0= IF tdefined? ELSE name 2drop true THEN
3320: postpone [IF] ;
3321:
3322: : [IFUNDEF] tdefined? 0= postpone [IF] ;
3323:
3324: Cond: [IFDEF] postpone [IFDEF] ;Cond
3325:
3326: Cond: [IFUNDEF] postpone [IFUNDEF] ;Cond
3327:
3328: \ C: \- \+ Conditional Compiling 09jun93jaw
3329:
3330: : C: >in @ tdefined? 0=
3331: IF >in ! X :
3332: ELSE drop
3333: BEGIN bl word dup c@
3334: IF count comment? s" ;" compare 0= ?EXIT
3335: ELSE refill 0= ABORT" CROSS: Out of Input while C:"
3336: THEN
3337: AGAIN
3338: THEN ;
3339:
3340: : d? d? ;
3341:
3342: \G doesn't skip line when debug switch is on
3343: : \D D? 0= IF postpone \ THEN ;
3344:
3345: \G interprets the line if word is not defined
3346: : \- tdefined? IF postpone \ THEN ;
3347:
3348: \G interprets the line if word is defined
3349: : \+ tdefined? 0= IF postpone \ THEN ;
3350:
3351: Cond: \- \- ;Cond
3352: Cond: \+ \+ ;Cond
3353: Cond: \D \D ;Cond
3354:
3355: : ?? bl word find IF execute ELSE drop 0 THEN ;
3356:
3357: : needed:
3358: \G defines ghost for words that we want to be compiled
3359: BEGIN >in @ bl word c@ WHILE >in ! Ghost drop REPEAT drop ;
3360:
3361: \ words that should be in minimal
3362:
3363: create s-buffer 50 chars allot
3364:
3365: bigendian Constant bigendian
3366:
3367: : here there ;
3368: : equ constant ;
3369: : mark there constant ;
3370:
3371: \ compiler directives
3372: : >ram >ram ;
3373: : >rom >rom ;
3374: : >auto >auto ;
3375: : >tempdp >tempdp ;
3376: : tempdp> tempdp> ;
3377: : const constflag on ;
3378:
3379: : Redefinitions-start
3380: \G Starts a redefinition section. Warnings are disabled and
3381: \G existing ghosts are reused. This is used in the kernel
3382: \G where ( and \ and the like are redefined
3383: twarnings off warnings off reuse-ghosts on ;
3384:
3385: : Redefinitions-end
3386: \G Ends a redefinition section. Warnings are enabled again.
3387: twarnings on warnings on reuse-ghosts off ;
3388:
3389: : warnings name 3 =
3390: IF twarnings off warnings off ELSE twarnings on warnings on THEN drop ;
3391:
3392: : | ;
3393: \ : | NoHeaderFlag on ; \ This is broken (damages the last word)
3394:
3395: : save-cross save-cross ;
3396: : save-region save-region ;
3397: : tdump swap >image swap dump ;
3398:
3399: also forth
3400: [IFDEF] Label : Label defempty? Label ; [THEN]
3401: [IFDEF] start-macros : start-macros defempty? start-macros ; [THEN]
3402: \ [IFDEF] builttag : builttag builttag ; [THEN]
3403: previous
3404:
3405: : s" [char] " parse s-buffer place s-buffer count ; \ for environment?
3406: : + + ;
3407: : 1+ 1 + ;
3408: : 2+ 2 + ;
3409: : 1- 1- ;
3410: : - - ;
3411: : and and ;
3412: : or or ;
3413: : 2* 2* ;
3414: : * * ;
3415: : / / ;
3416: : dup dup ;
3417: : over over ;
3418: : swap swap ;
3419: : rot rot ;
3420: : drop drop ;
3421: : = = ;
3422: : 0= 0= ;
3423: : lshift lshift ;
3424: : 2/ 2/ ;
3425: \ : . . ;
3426:
3427: : all-words ['] forced? IS skip? ;
3428: : needed-words ['] needed? IS skip? ;
3429: : undef-words ['] defined2? IS skip? ;
3430: : skipdef skipdef ;
3431:
3432: : \ postpone \ ; immediate
3433: : \G T-\G ; immediate
3434: : ( postpone ( ; immediate
3435: : include bl word count included ;
3436: : included swap >image swap included ;
3437: : require require ;
3438: : needs require ;
3439: : .( [char] ) parse type ;
3440: : ." [char] " parse type ;
3441: : cr cr ;
3442:
3443: : times 0 ?DO dup X c, LOOP drop ; \ used for space table creation
3444:
3445: \ only forth also cross also minimal definitions order
3446:
3447: \ cross-compiler words
3448:
3449: : decimal decimal [g'] decimal >exec2 @ ?dup IF EXECUTE THEN ;
3450: : hex hex [g'] hex >exec2 @ ?dup IF EXECUTE THEN ;
3451:
3452: \ : tudp X tudp ;
3453: \ : tup X tup ;
3454:
3455: : doc-off false to-doc ! ;
3456: : doc-on true to-doc ! ;
3457:
3458: : declareunique ( "name" -- )
3459: \G Sets the unique flag for a ghost. The assembler output
3460: \G generates labels with the ghostname concatenated with the address
3461: \G while cross-compiling. The address is concatenated
3462: \G because we have double occurences of the same name.
3463: \G If we want to reference the labels from the assembler or C
3464: \G code we declare them unique, so the address is skipped.
3465: Ghost >ghost-flags dup @ <unique> or swap ! ;
3466:
3467: \ [IFDEF] dbg : dbg dbg ; [THEN]
3468:
3469: \ for debugging...
3470: \ : dbg dbg ;
3471: : horder order ;
3472: : hwords words ;
3473: \ : words also ghosts
3474: \ words previous ;
3475: : .s .s ;
3476: : bye bye ;
3477:
3478: \ dummy
3479: : group 0 word drop ;
3480:
3481: \ turnkey direction
3482: : H forth ; immediate
3483: : T minimal ; immediate
3484: : G ghosts ; immediate
3485:
3486:
3487: \ these ones are pefered:
3488:
3489: : unlock previous forth also cross ;
3490:
3491: \ also minimal
3492: >cross
3493:
3494: : turnkey
3495: ghosts-wordlist 1 set-order
3496: also target definitions
3497: also Minimal also ;
3498:
3499: >minimal
3500:
3501: : [[+++
3502: turnkey unlock ;
3503:
3504: unlock definitions also minimal
3505:
3506: : lock turnkey ;
3507:
3508: Defer +++]]-hook
3509: : +++]] +++]]-hook lock ;
3510:
3511: LOCK
3512: \ load cross compiler extension defined in mach file
3513:
3514: UNLOCK >CROSS
3515:
3516: [IFDEF] extend-cross extend-cross [THEN]
3517:
3518: LOCK
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