[gforth] / gforth / cross.fs

gforth: gforth/cross.fs

1 :	anton	1.1	\ CROSS.FS The Cross-Compiler 06oct92py
2 :			\ Idea and implementation: Bernd Paysan (py)
3 :	anton	1.30
4 :	anton	1.86	\ Copyright (C) 1995,1996,1997,1998,1999,2000 Free Software Foundation, Inc.
5 :	anton	1.30
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 :	anton	1.87	\ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
21 :	anton	1.1
22 :	jwilke	1.67	0
23 :			[IF]
24 :
25 :			ToDo:
26 :	jwilke	1.107	- 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 :	jwilke	1.67
32 :			[THEN]
33 :	anton	1.48
34 :	jwilke	1.77	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 :	jwilke	1.78	: T previous Ghosts also Target ; immediate
57 :	jwilke	1.77	: G Ghosts ; immediate
58 :			: H previous Forth also Cross ; immediate
59 :
60 :			forth definitions
61 :
62 :	jwilke	1.78	: T previous Ghosts also Target ; immediate
63 :	jwilke	1.77	: G Ghosts ; immediate
64 :
65 :	jwilke	1.105
66 :	jwilke	1.77	: >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 :	jwilke	1.78	over [char] ' =
140 :			IF \ a ' alone is rather unusual :-)
141 :			drop char+ c@ 0 true EXIT
142 :			THEN
143 :	jwilke	1.77	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 :	anton	1.48
205 :	jwilke	1.52	hex \ the defualt base for the cross-compiler is hex !!
206 :	jwilke	1.78	\ Warnings off
207 :	jwilke	1.52
208 :			\ words that are generaly useful
209 :
210 :	pazsan	1.59	: KB 400 * ;
211 :	jwilke	1.52	: >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 :	anton	1.1
217 :	pazsan	1.23	: string, ( c-addr u -- )
218 :			\ puts down string as cstring
219 :			dup c, here swap chars dup allot move ;
220 :	pazsan	1.5
221 :	jwilke	1.77	: ," [char] " parse string, ;
222 :
223 :	jwilke	1.52	: SetValue ( n -- <name> )
224 :	pazsan	1.54	\G Same behaviour as "Value" if the <name> is not defined
225 :			\G Same behaviour as "to" if <name> is defined
226 :	jwilke	1.52	\G SetValue searches in the current vocabulary
227 :	jwilke	1.68	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 :	jwilke	1.74	set-order
234 :	jwilke	1.68	ELSE Value THEN ;
235 :	jwilke	1.52
236 :			: DefaultValue ( n -- <name> )
237 :	pazsan	1.54	\G Same behaviour as "Value" if the <name> is not defined
238 :			\G DefaultValue searches in the current vocabulary
239 :	jwilke	1.52	save-input bl word >r restore-input throw r> count
240 :			get-current search-wordlist
241 :	pazsan	1.56	IF bl word drop 2drop ELSE Value THEN ;
242 :	anton	1.1
243 :			hex
244 :
245 :	jwilke	1.52	\ 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 :	jwilke	1.105	: 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 :	jwilke	1.52	\ Begin CROSS COMPILER:
262 :
263 :	jwilke	1.74	\ debugging
264 :	jwilke	1.52
265 :	jwilke	1.74	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 :	jwilke	1.77	>CROSS
275 :
276 :	jwilke	1.74	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 :	pazsan	1.54
306 :	jwilke	1.77	\ \ -------------------- 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 :	pazsan	1.85	\ 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 :	jwilke	1.77
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 :	jwilke	1.78	0 [IF]
590 :
591 :	jwilke	1.77	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 :	jwilke	1.78	[THEN]
602 :
603 :	jwilke	1.77	>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 :	jwilke	1.105	\ \ -------------------- 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 :	jwilke	1.107	Plugin dlit, ( d -- ) \ compile numerical value the target
694 :	jwilke	1.105	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 :	jwilke	1.103	\ Ghost Builder 06oct92py
770 :
771 :	jwilke	1.105	>CROSS
772 :	jwilke	1.103	hex
773 :	jwilke	1.105	\ Values for ghost magic
774 :	jwilke	1.103	4711 Constant <fwd> 4712 Constant <res>
775 :			4713 Constant <imm> 4714 Constant <do:>
776 :			4715 Constant <skip>
777 :
778 :	jwilke	1.105	\ Bitmask for ghost flags
779 :	jwilke	1.103	1 Constant <unique>
780 :	jwilke	1.105	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 :	jwilke	1.103
793 :			Struct
794 :	jwilke	1.52
795 :	jwilke	1.103	\ link to next ghost (always the first element)
796 :			cell% field >next-ghost
797 :	jwilke	1.52
798 :	jwilke	1.103	\ 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 :	jwilke	1.52
805 :	jwilke	1.106	\ execution semantics (while target compiling) of ghost
806 :	jwilke	1.103	cell% field >exec
807 :	jwilke	1.52
808 :	jwilke	1.106	\ 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 :	jwilke	1.105	cell% field >comp
813 :
814 :	jwilke	1.106	\ 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 :	jwilke	1.103	cell% field >exec-compile
820 :	jwilke	1.52
821 :	jwilke	1.106	\ 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 :	jwilke	1.103	cell% field >exec2
825 :	jwilke	1.52
826 :	jwilke	1.103	cell% field >created
827 :	jwilke	1.52
828 :	jwilke	1.103	\ the xt of the created ghost word itself
829 :			cell% field >ghost-xt
830 :	jwilke	1.52
831 :	jwilke	1.103	\ pointer to the counted string of the assiciated
832 :			\ assembler label
833 :			cell% field >asm-name
834 :	jwilke	1.52
835 :	jwilke	1.103	\ 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 :	pazsan	1.93
844 :	jwilke	1.103	cell% field >ghost-flags
845 :	pazsan	1.93
846 :	jwilke	1.103	cell% field >ghost-name
847 :	jwilke	1.52
848 :	jwilke	1.103	End-Struct ghost-struct
849 :	jwilke	1.52
850 :	jwilke	1.103	Variable ghost-list
851 :			0 ghost-list !
852 :	jwilke	1.52
853 :			Variable executed-ghost \ last executed ghost, needed in tcreate and gdoes>
854 :	jwilke	1.103	\ Variable last-ghost \ last ghost that is created
855 :	jwilke	1.52	Variable last-header-ghost \ last ghost definitions with header
856 :
857 :	jwilke	1.103	\ 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 :	jwilke	1.106	\ this is just for debugging, to see this in the backtrace
882 :	jwilke	1.103	: 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 :	jwilke	1.105	Defer is-forward
894 :
895 :	jwilke	1.103	: (ghostheader) ( -- )
896 :	jwilke	1.105	ghost-list linked <fwd> , 0 , ['] NoExec , ['] is-forward ,
897 :			0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , ;
898 :	jwilke	1.103
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 :	jwilke	1.52	: Make-Ghost ( "name" -- ghost )
907 :	jwilke	1.103	>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 :	jwilke	1.52
927 :			\ ghost words 14oct92py
928 :			\ changed: 10may93py/jaw
929 :
930 :	jwilke	1.103	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 :	jwilke	1.52	\ searches for string in word-list ghosts
943 :	jwilke	1.103	\ dup count type space
944 :			dup >r count gsearch
945 :			dup IF rdrop ELSE r> swap THEN ;
946 :	jwilke	1.52
947 :			: gdiscover ( xt -- ghost true \| xt false )
948 :	jwilke	1.103	>r ghost-list
949 :	jwilke	1.52	BEGIN @ dup
950 :	jwilke	1.103	WHILE dup >magic @ <fwd> <>
951 :			IF dup >link @ r@ =
952 :			IF rdrop true EXIT THEN
953 :			THEN
954 :	jwilke	1.52	REPEAT
955 :	jwilke	1.103	drop r> false ;
956 :	jwilke	1.52
957 :	jwilke	1.105	: xt>ghost ( xt -- ghost )
958 :			gdiscover 0= ABORT" CROSS: ghost not found for this xt" ;
959 :
960 :	jwilke	1.103	: Ghost ( "name" -- ghost )
961 :			>in @ bl word gfind IF nip EXIT THEN
962 :	jwilke	1.52	drop >in ! Make-Ghost ;
963 :
964 :			: >ghostname ( ghost -- adr len )
965 :	jwilke	1.103	>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 :			1 [IF] \ FIXME: define when vocs are ready
990 :			: HeaderGhost ( "name" -- ghost )
991 :			>in @
992 :			bl word count
993 :			\ 2dup type space
994 :			current-ghosts search-wordlist
995 :			IF >body dup undefined? reuse-ghosts @ or
996 :			IF nip EXIT
997 :			ELSE exists-warning
998 :			THEN
999 :			drop >in !
1000 :			ELSE >in !
1001 :			THEN
1002 :			\ we keep the execution semantics of the prviously
1003 :			\ defined words, this is a workaround
1004 :			\ for the redefined \ until vocs work
1005 :			Make-Ghost ;
1006 :			[THEN]
1007 :	jwilke	1.52
1008 :	jwilke	1.103
1009 :	jwilke	1.78	: .ghost ( ghost -- ) >ghostname type ;
1010 :
1011 :	jwilke	1.77	\ ' >ghostname ALIAS @name
1012 :	jwilke	1.52
1013 :	jwilke	1.103	: [G'] ( -- ghost : name )
1014 :			\G ticks a ghost and returns its address
1015 :			\ bl word gfind 0= ABORT" CROSS: Ghost don't exists"
1016 :			ghost state @ IF postpone literal THEN ; immediate
1017 :
1018 :	jwilke	1.105	: g>xt ( ghost -- xt )
1019 :			\G Returns the xt (cfa) of a ghost. Issues a warning if undefined.
1020 :	jwilke	1.103	dup undefined? ABORT" CROSS: forward " >link @ ;
1021 :
1022 :	jwilke	1.105	: g>body ( ghost -- body )
1023 :			\G Returns the body-address (pfa) of a ghost.
1024 :			\G Issues a warning if undefined (a forward-reference).
1025 :			g>xt X >body ;
1026 :
1027 :	jwilke	1.103	1 Constant <label>
1028 :	jwilke	1.52
1029 :	jwilke	1.103	Struct
1030 :			\ bitmask of address type (not used for now)
1031 :			cell% field addr-type
1032 :			\ if this address is an xt, this field points to the ghost
1033 :			cell% field addr-xt-ghost
1034 :			\ a bit mask that tells as what part of the cell
1035 :			\ is refenced from an address pointer, used for assembler generation
1036 :			cell% field addr-refs
1037 :			End-Struct addr-struct
1038 :
1039 :			: %allocerase ( align size -- addr )
1040 :			dup >r %alloc dup r> erase ;
1041 :
1042 :			\ returns the addr struct, define it if 0 reference
1043 :			: define-addr-struct ( addr -- struct-addr )
1044 :			dup @ ?dup IF nip EXIT THEN
1045 :			addr-struct %allocerase tuck swap ! ;
1046 :	jwilke	1.75
1047 :	jwilke	1.52	\ Predefined ghosts 12dec92py
1048 :
1049 :	jwilke	1.103	Ghost 0= drop
1050 :			Ghost branch Ghost ?branch 2drop
1051 :			Ghost (do) Ghost (?do) 2drop
1052 :			Ghost (for) drop
1053 :			Ghost (loop) Ghost (+loop) 2drop
1054 :			Ghost (next) drop
1055 :			Ghost unloop Ghost ;S 2drop
1056 :			Ghost lit Ghost (compile) Ghost ! 2drop drop
1057 :			Ghost (does>) Ghost noop 2drop
1058 :			Ghost (.") Ghost (S") Ghost (ABORT") 2drop drop
1059 :			Ghost ' drop
1060 :			Ghost :docol Ghost :doesjump Ghost :dodoes 2drop drop
1061 :			Ghost :dovar drop
1062 :			Ghost over Ghost = Ghost drop 2drop drop
1063 :			Ghost - drop
1064 :			Ghost 2drop drop
1065 :			Ghost 2dup drop
1066 :
1067 :
1068 :	jwilke	1.52
1069 :			\ \ Parameter for target systems 06oct92py
1070 :
1071 :	jwilke	1.103
1072 :			>cross
1073 :	jwilke	1.52	\ we define it ans like...
1074 :			wordlist Constant target-environment
1075 :
1076 :	jwilke	1.103	\ save information of current dictionary to restore with environ>
1077 :			Variable env-current
1078 :	jwilke	1.52
1079 :			: >ENVIRON get-current env-current ! target-environment set-current ;
1080 :			: ENVIRON> env-current @ set-current ;
1081 :	pazsan	1.43
1082 :	anton	1.48	>TARGET
1083 :	pazsan	1.43
1084 :	jwilke	1.103	: environment? ( addr len -- [ x ] true \| false )
1085 :			\G returns the content of environment variable and true or
1086 :			\G false if not present
1087 :			target-environment search-wordlist
1088 :			IF EXECUTE true ELSE false THEN ;
1089 :
1090 :			: $has? ( addr len -- x \| false )
1091 :			\G returns the content of environment variable
1092 :			\G or false if not present
1093 :			T environment? H dup IF drop THEN ;
1094 :
1095 :			: e? ( "name" -- x )
1096 :			\G returns the content of environment variable.
1097 :			\G The variable is expected to exist. If not, issue an error.
1098 :			bl word count T environment? H
1099 :			0= ABORT" environment variable not defined!" ;
1100 :
1101 :			: has? ( "name" --- x \| false )
1102 :			\G returns the content of environment variable
1103 :			\G or false if not present
1104 :			bl word count T $has? H ;
1105 :	jwilke	1.52
1106 :	anton	1.48
1107 :	pazsan	1.54	>ENVIRON get-order get-current swap 1+ set-order
1108 :			true SetValue compiler
1109 :	pazsan	1.83	true SetValue cross
1110 :	pazsan	1.54	true SetValue standard-threading
1111 :			>TARGET previous
1112 :	jwilke	1.52
1113 :	jwilke	1.77	0
1114 :	jwilke	1.103	[IFDEF] mach-file drop mach-file count 1 [THEN]
1115 :			[IFDEF] machine-file drop machine-file 1 [THEN]
1116 :			[IF] included hex
1117 :	jwilke	1.77	[ELSE] cr ." No machine description!" ABORT
1118 :			[THEN]
1119 :	pazsan	1.43
1120 :	jwilke	1.53	>ENVIRON
1121 :
1122 :	pazsan	1.54	T has? ec H
1123 :			[IF]
1124 :			false DefaultValue relocate
1125 :			false DefaultValue file
1126 :			false DefaultValue OS
1127 :			false DefaultValue prims
1128 :			false DefaultValue floating
1129 :			false DefaultValue glocals
1130 :			false DefaultValue dcomps
1131 :			false DefaultValue hash
1132 :			false DefaultValue xconds
1133 :			false DefaultValue header
1134 :	jwilke	1.105	false DefaultValue backtrace
1135 :			false DefaultValue new-input
1136 :			false DefaultValue peephole
1137 :	pazsan	1.54	[THEN]
1138 :
1139 :			true DefaultValue interpreter
1140 :			true DefaultValue ITC
1141 :			false DefaultValue rom
1142 :	jwilke	1.73	true DefaultValue standardthreading
1143 :	jwilke	1.53
1144 :	jwilke	1.52	>TARGET
1145 :	jwilke	1.53	s" relocate" T environment? H
1146 :	jwilke	1.103	\ JAW why set NIL to this?!
1147 :			[IF] drop \ SetValue NIL
1148 :	jwilke	1.53	[ELSE] >ENVIRON T NIL H SetValue relocate
1149 :			[THEN]
1150 :	pazsan	1.43
1151 :			>CROSS
1152 :
1153 :	jwilke	1.52	\ \ Create additional parameters 19jan95py
1154 :	pazsan	1.19
1155 :	jwilke	1.71	\ 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 :	jwilke	1.77	\ this sets byte size for the target machine, (probably right guess) jaw
1173 :	jwilke	1.67
1174 :	pazsan	1.19	T
1175 :	jwilke	1.71	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 :	pazsan	1.19	H
1190 :	pazsan	1.81	tbits/char bits/byte / Constant tbyte
1191 :	jwilke	1.71
1192 :	pazsan	1.19
1193 :	anton	1.48	\ Variables 06oct92py
1194 :
1195 :			Variable image
1196 :			Variable tlast TNIL tlast ! \ Last name field
1197 :			Variable tlastcfa \ Last code field
1198 :			Variable bit$
1199 :	jwilke	1.52
1200 :			\ statistics 10jun97jaw
1201 :
1202 :			Variable headers-named 0 headers-named !
1203 :			Variable user-vars 0 user-vars !
1204 :
1205 :	jwilke	1.67	: target>bitmask-size ( u1 -- u2 )
1206 :			1- tcell>bit rshift 1+ ;
1207 :
1208 :	jwilke	1.105	: allocatetarget ( size -- adr )
1209 :	jwilke	1.67	dup allocate ABORT" CROSS: No memory for target"
1210 :			swap over swap erase ;
1211 :	jwilke	1.52
1212 :	pazsan	1.54	\ \ memregion.fs
1213 :	jwilke	1.52
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 :	jwilke	1.103	: >rname 7 cells + ;
1222 :			: >rbm 4 cells + ;
1223 :			: >rmem 5 cells + ;
1224 :			: >rtype 6 cells + ;
1225 :	jwilke	1.67	: >rlink 3 cells + ;
1226 :	jwilke	1.52	: >rdp 2 cells + ;
1227 :			: >rlen cell+ ;
1228 :			: >rstart ;
1229 :
1230 :
1231 :	jwilke	1.103	: region ( addr len -- )
1232 :			\G create a new region
1233 :	jwilke	1.52	\ check whether predefined region exists
1234 :			save-input bl word find >r >r restore-input throw r> r> 0=
1235 :			IF \ make region
1236 :			drop
1237 :			save-input create restore-input throw
1238 :			here last-defined-region !
1239 :			over ( startaddr ) , ( length ) , ( dp ) ,
1240 :	jwilke	1.103	region-link linked 0 , 0 , 0 , bl word count string,
1241 :	jwilke	1.52	ELSE \ store new parameters in region
1242 :			bl word drop
1243 :			>body >r r@ last-defined-region !
1244 :	jwilke	1.67	r@ >rlen ! dup r@ >rstart ! r> >rdp !
1245 :	jwilke	1.52	THEN ;
1246 :
1247 :	jwilke	1.103	: borders ( region -- startaddr endaddr )
1248 :			\G returns lower and upper region border
1249 :	jwilke	1.67	dup >rstart @ swap >rlen @ over + ;
1250 :	jwilke	1.52
1251 :	jwilke	1.103	: extent ( region -- startaddr len )
1252 :			\G returns the really used area
1253 :	jwilke	1.67	dup >rstart @ swap >rdp @ over - ;
1254 :	jwilke	1.52
1255 :	jwilke	1.103	: area ( region -- startaddr totallen )
1256 :			\G returns the total area
1257 :	jwilke	1.79	dup >rstart @ swap >rlen @ ;
1258 :	jwilke	1.52
1259 :	jwilke	1.103	: mirrored
1260 :			\G mark a region as mirrored
1261 :	jwilke	1.52	mirrored-link
1262 :	jwilke	1.68	align linked last-defined-region @ , ;
1263 :	jwilke	1.52
1264 :	jwilke	1.67	: .addr ( u -- )
1265 :			\G prints a 16 or 32 Bit nice hex value
1266 :	jwilke	1.52	base @ >r hex
1267 :			tcell 2 u>
1268 :	jwilke	1.77	IF s>d <# # # # # [char] . hold # # # # #> type
1269 :	jwilke	1.52	ELSE s>d <# # # # # # #> type
1270 :	jwilke	1.103	THEN r> base ! space ;
1271 :	jwilke	1.52
1272 :			: .regions \G display region statistic
1273 :
1274 :			\ we want to list the regions in the right order
1275 :			\ so first collect all regions on stack
1276 :			0 region-link @
1277 :			BEGIN dup WHILE dup @ REPEAT drop
1278 :			BEGIN dup
1279 :	jwilke	1.67	WHILE cr
1280 :			0 >rlink - >r
1281 :			r@ >rname count tuck type
1282 :	jwilke	1.52	12 swap - 0 max spaces space
1283 :	jwilke	1.67	." Start: " r@ >rstart @ dup .addr space
1284 :			." End: " r@ >rlen @ + .addr space
1285 :			." DP: " r> >rdp @ .addr
1286 :	jwilke	1.52	REPEAT drop
1287 :	jwilke	1.53	s" rom" T $has? H 0= ?EXIT
1288 :	jwilke	1.52	cr ." Mirrored:"
1289 :			mirrored-link @
1290 :			BEGIN dup
1291 :	jwilke	1.67	WHILE space dup cell+ @ >rname count type @
1292 :	jwilke	1.52	REPEAT drop cr
1293 :			;
1294 :
1295 :			\ -------- predefined regions
1296 :
1297 :			0 0 region address-space
1298 :			\ total memory addressed and used by the target system
1299 :
1300 :			0 0 region dictionary
1301 :			\ rom area for the compiler
1302 :
1303 :	jwilke	1.53	T has? rom H
1304 :	jwilke	1.52	[IF]
1305 :			0 0 region ram-dictionary mirrored
1306 :			\ ram area for the compiler
1307 :			[ELSE]
1308 :			' dictionary ALIAS ram-dictionary
1309 :			[THEN]
1310 :
1311 :			0 0 region return-stack
1312 :
1313 :			0 0 region data-stack
1314 :
1315 :			0 0 region tib-region
1316 :
1317 :			' dictionary ALIAS rom-dictionary
1318 :
1319 :
1320 :	jwilke	1.105	: setup-target ( -- ) \G initialize target's memory space
1321 :	jwilke	1.53	s" rom" T $has? H
1322 :	jwilke	1.52	IF \ check for ram and rom...
1323 :	jwilke	1.72	\ address-space area nip 0<>
1324 :	jwilke	1.67	ram-dictionary area nip 0<>
1325 :			rom-dictionary area nip 0<>
1326 :	jwilke	1.72	and 0=
1327 :	jwilke	1.52	ABORT" CROSS: define address-space, rom- , ram-dictionary, with rom-support!"
1328 :			THEN
1329 :			address-space area nip
1330 :			IF
1331 :			address-space area
1332 :			ELSE
1333 :			dictionary area
1334 :			THEN
1335 :	jwilke	1.67	nip 0=
1336 :	jwilke	1.52	ABORT" CROSS: define at least address-space or dictionary!!"
1337 :	jwilke	1.67
1338 :			\ allocate target for each region
1339 :			region-link
1340 :			BEGIN @ dup
1341 :			WHILE dup
1342 :			0 >rlink - >r
1343 :			r@ >rlen @
1344 :			IF \ allocate mem
1345 :	jwilke	1.103	r@ >rlen @ allocatetarget dup image !
1346 :	jwilke	1.67	r@ >rmem !
1347 :
1348 :	jwilke	1.103	r@ >rlen @
1349 :	jwilke	1.67	target>bitmask-size allocatetarget
1350 :	jwilke	1.72	dup bit$ !
1351 :	jwilke	1.103	r@ >rbm !
1352 :	jwilke	1.67
1353 :	jwilke	1.103	r@ >rlen @
1354 :			tcell / 1+ cells allocatetarget r@ >rtype !
1355 :
1356 :			rdrop
1357 :	jwilke	1.67	ELSE r> drop THEN
1358 :	jwilke	1.72	REPEAT drop ;
1359 :
1360 :	jwilke	1.105	\ MakeKernel 22feb99jaw
1361 :	jwilke	1.72
1362 :			: makekernel ( targetsize -- targetsize )
1363 :			dup dictionary >rlen ! setup-target ;
1364 :
1365 :			>MINIMAL
1366 :			: makekernel makekernel ;
1367 :			>CROSS
1368 :	jwilke	1.52
1369 :	pazsan	1.54	\ \ switched tdp for rom support 03jun97jaw
1370 :	jwilke	1.52
1371 :			\ second value is here to store some maximal value for statistics
1372 :			\ tempdp is also embedded here but has nothing to do with rom support
1373 :			\ (needs switched dp)
1374 :
1375 :			variable tempdp 0 , \ temporary dp for resolving
1376 :			variable tempdp-save
1377 :
1378 :			0 [IF]
1379 :			variable romdp 0 , \ Dictionary-Pointer for ramarea
1380 :			variable ramdp 0 , \ Dictionary-Pointer for romarea
1381 :
1382 :			\
1383 :			variable sramdp \ start of ram-area for forth
1384 :			variable sromdp \ start of rom-area for forth
1385 :
1386 :			[THEN]
1387 :
1388 :
1389 :			0 value tdp
1390 :			variable fixed \ flag: true: no automatic switching
1391 :			\ false: switching is done automatically
1392 :
1393 :			\ Switch-Policy:
1394 :			\
1395 :			\ a header is always compiled into rom
1396 :			\ after a created word (create and variable) compilation goes to ram
1397 :			\
1398 :			\ Be careful: If you want to make the data behind create into rom
1399 :			\ you have to put >rom before create!
1400 :
1401 :			variable constflag constflag off
1402 :
1403 :	jwilke	1.67	: activate ( region -- )
1404 :			\G next code goes to this region
1405 :			>rdp to tdp ;
1406 :
1407 :	jwilke	1.52	: (switchram)
1408 :	jwilke	1.53	fixed @ ?EXIT s" rom" T $has? H 0= ?EXIT
1409 :	jwilke	1.67	ram-dictionary activate ;
1410 :	jwilke	1.52
1411 :			: switchram
1412 :			constflag @
1413 :			IF constflag off ELSE (switchram) THEN ;
1414 :
1415 :			: switchrom
1416 :	jwilke	1.67	fixed @ ?EXIT rom-dictionary activate ;
1417 :	jwilke	1.52
1418 :			: >tempdp ( addr -- )
1419 :			tdp tempdp-save ! tempdp to tdp tdp ! ;
1420 :			: tempdp> ( -- )
1421 :			tempdp-save @ to tdp ;
1422 :
1423 :			: >ram fixed off (switchram) fixed on ;
1424 :			: >rom fixed off switchrom fixed on ;
1425 :			: >auto fixed off switchrom ;
1426 :
1427 :
1428 :
1429 :			\ : romstart dup sromdp ! romdp ! ;
1430 :			\ : ramstart dup sramdp ! ramdp ! ;
1431 :
1432 :	jwilke	1.67	\ default compilation goes to rom
1433 :	jwilke	1.52	\ when romable support is off, only the rom switch is used (!!)
1434 :			>auto
1435 :
1436 :	anton	1.48	: there tdp @ ;
1437 :
1438 :	jwilke	1.52	>TARGET
1439 :	anton	1.48
1440 :	jwilke	1.52	\ \ Target Memory Handling
1441 :	anton	1.1
1442 :			\ Byte ordering and cell size 06oct92py
1443 :
1444 :	pazsan	1.19	: cell+ tcell + ;
1445 :			: cells tcell<< lshift ;
1446 :	jwilke	1.71	: chars tchar * ;
1447 :			: char+ tchar + ;
1448 :	pazsan	1.19	: floats tfloat * ;
1449 :	anton	1.6
1450 :	anton	1.1	>CROSS
1451 :	pazsan	1.19	: cell/ tcell<< rshift ;
1452 :	anton	1.1	>TARGET
1453 :			20 CONSTANT bl
1454 :	jwilke	1.52	\ TNIL Constant NIL
1455 :	anton	1.1
1456 :			>CROSS
1457 :
1458 :	pazsan	1.20	bigendian
1459 :			[IF]
1460 :	jwilke	1.106	: DS! ( d addr -- ) tcell bounds swap 1-
1461 :	pazsan	1.20	DO maxbyte ud/mod rot I c! -1 +LOOP 2drop ;
1462 :	jwilke	1.106	: DS@ ( addr -- d ) >r 0 0 r> tcell bounds
1463 :			DO maxbyte * swap maxbyte um* rot + swap I c@ + swap LOOP ;
1464 :	pazsan	1.57	: Sc! ( n addr -- ) >r s>d r> tchar bounds swap 1-
1465 :			DO maxbyte ud/mod rot I c! -1 +LOOP 2drop ;
1466 :			: Sc@ ( addr -- n ) >r 0 0 r> tchar bounds
1467 :			DO maxbyte * swap maxbyte um* rot + swap I c@ + swap LOOP d>s ;
1468 :	pazsan	1.19	[ELSE]
1469 :	jwilke	1.106	: DS! ( d addr -- ) tcell bounds
1470 :	pazsan	1.20	DO maxbyte ud/mod rot I c! LOOP 2drop ;
1471 :	jwilke	1.106	: DS@ ( addr -- n ) >r 0 0 r> tcell bounds swap 1-
1472 :			DO maxbyte * swap maxbyte um* rot + swap I c@ + swap -1 +LOOP ;
1473 :	pazsan	1.57	: Sc! ( n addr -- ) >r s>d r> tchar bounds
1474 :			DO maxbyte ud/mod rot I c! LOOP 2drop ;
1475 :			: Sc@ ( addr -- n ) >r 0 0 r> tchar bounds swap 1-
1476 :			DO maxbyte * swap maxbyte um* rot + swap I c@ + swap -1 +LOOP d>s ;
1477 :	anton	1.1	[THEN]
1478 :
1479 :	jwilke	1.106	: S! ( n addr -- ) >r s>d r> DS! ;
1480 :			: S@ ( addr -- n ) DS@ d>s ;
1481 :
1482 :	jwilke	1.67	: taddr>region ( taddr -- region \| 0 )
1483 :			\G finds for a target-address the correct region
1484 :			\G returns 0 if taddr is not in range of a target memory region
1485 :			region-link
1486 :			BEGIN @ dup
1487 :			WHILE dup >r
1488 :			0 >rlink - >r
1489 :			r@ >rlen @
1490 :			IF dup r@ borders within
1491 :			IF r> r> drop nip EXIT THEN
1492 :			THEN
1493 :			r> drop
1494 :			r>
1495 :			REPEAT
1496 :			2drop 0 ;
1497 :
1498 :	jwilke	1.103	: taddr>region-abort ( taddr -- region \| 0 )
1499 :			dup taddr>region dup 0=
1500 :			IF drop cr ." Wrong address: " .addr
1501 :			-1 ABORT" Address out of range!"
1502 :			THEN nip ;
1503 :
1504 :	jwilke	1.67	: (>regionimage) ( taddr -- 'taddr )
1505 :			dup
1506 :			\ find region we want to address
1507 :	jwilke	1.103	taddr>region-abort
1508 :	jwilke	1.67	>r
1509 :			\ calculate offset in region
1510 :			r@ >rstart @ -
1511 :			\ add regions real address in our memory
1512 :			r> >rmem @ + ;
1513 :
1514 :	jwilke	1.103	: (>regionbm) ( taddr -- 'taddr bitmaskbaseaddr )
1515 :			dup
1516 :			\ find region we want to address
1517 :			taddr>region-abort
1518 :			>r
1519 :			\ calculate offset in region
1520 :			r@ >rstart @ -
1521 :			\ add regions real address in our memory
1522 :			r> >rbm @ ;
1523 :
1524 :			: (>regiontype) ( taddr -- 'taddr )
1525 :			dup
1526 :			\ find region we want to address
1527 :			taddr>region-abort
1528 :			>r
1529 :			\ calculate offset in region
1530 :			r@ >rstart @ - tcell / cells
1531 :			\ add regions real address in our memory
1532 :			r> >rtype @ + ;
1533 :
1534 :	anton	1.1	\ Bit string manipulation 06oct92py
1535 :			\ 9may93jaw
1536 :			CREATE Bittable 80 c, 40 c, 20 c, 10 c, 8 c, 4 c, 2 c, 1 c,
1537 :			: bits ( n -- n ) chars Bittable + c@ ;
1538 :
1539 :			: >bit ( addr n -- c-addr mask ) 8 /mod rot + swap bits ;
1540 :			: +bit ( addr n -- ) >bit over c@ or swap c! ;
1541 :	pazsan	1.4	: -bit ( addr n -- ) >bit invert over c@ and swap c! ;
1542 :	jwilke	1.67
1543 :	jwilke	1.103	: @relbit ( taddr -- f ) (>regionbm) swap cell/ >bit swap c@ and ;
1544 :
1545 :	jwilke	1.84	: (relon) ( taddr -- )
1546 :			[ [IFDEF] fd-relocation-table ]
1547 :			s" +" fd-relocation-table write-file throw
1548 :			dup s>d <# #s #> fd-relocation-table write-line throw
1549 :			[ [THEN] ]
1550 :	jwilke	1.103	(>regionbm) swap cell/ +bit ;
1551 :	jwilke	1.84
1552 :			: (reloff) ( taddr -- )
1553 :			[ [IFDEF] fd-relocation-table ]
1554 :			s" -" fd-relocation-table write-file throw
1555 :			dup s>d <# #s #> fd-relocation-table write-line throw
1556 :			[ [THEN] ]
1557 :	jwilke	1.103	(>regionbm) swap cell/ -bit ;
1558 :	jwilke	1.67
1559 :			: (>image) ( taddr -- absaddr ) image @ + ;
1560 :
1561 :			DEFER >image
1562 :			DEFER relon
1563 :			DEFER reloff
1564 :			DEFER correcter
1565 :
1566 :			T has? relocate H
1567 :			[IF]
1568 :			' (relon) IS relon
1569 :			' (reloff) IS reloff
1570 :	jwilke	1.103	' (>regionimage) IS >image
1571 :	jwilke	1.67	[ELSE]
1572 :			' drop IS relon
1573 :			' drop IS reloff
1574 :	jwilke	1.68	' (>regionimage) IS >image
1575 :	jwilke	1.67	[THEN]
1576 :	anton	1.1
1577 :			\ Target memory access 06oct92py
1578 :
1579 :			: align+ ( taddr -- rest )
1580 :	anton	1.48	tcell tuck 1- and - [ tcell 1- ] Literal and ;
1581 :	anton	1.22	: cfalign+ ( taddr -- rest )
1582 :	pazsan	1.39	\ see kernel.fs:cfaligned
1583 :	pazsan	1.43	/maxalign tuck 1- and - [ /maxalign 1- ] Literal and ;
1584 :	anton	1.1
1585 :			>TARGET
1586 :			: aligned ( taddr -- ta-addr ) dup align+ + ;
1587 :			\ assumes cell alignment granularity (as GNU C)
1588 :
1589 :	anton	1.22	: cfaligned ( taddr1 -- taddr2 )
1590 :	pazsan	1.39	\ see kernel.fs
1591 :	anton	1.22	dup cfalign+ + ;
1592 :
1593 :	jwilke	1.52	: @ ( taddr -- w ) >image S@ ;
1594 :			: ! ( w taddr -- ) >image S! ;
1595 :	pazsan	1.57	: c@ ( taddr -- char ) >image Sc@ ;
1596 :			: c! ( char taddr -- ) >image Sc! ;
1597 :	anton	1.7	: 2@ ( taddr -- x1 x2 ) T dup cell+ @ swap @ H ;
1598 :	pazsan	1.82	: 2! ( x1 x2 taddr -- ) T tuck ! cell+ ! H ;
1599 :	anton	1.1
1600 :			\ Target compilation primitives 06oct92py
1601 :			\ included A! 16may93jaw
1602 :
1603 :			: here ( -- there ) there ;
1604 :			: allot ( n -- ) tdp +! ;
1605 :	jwilke	1.78	: , ( w -- ) T here H tcell T allot ! H ;
1606 :			: c, ( char -- ) T here H tchar T allot c! H ;
1607 :			: align ( -- ) T here H align+ 0 ?DO bl T c, H tchar +LOOP ;
1608 :	anton	1.22	: cfalign ( -- )
1609 :	jwilke	1.78	T here H cfalign+ 0 ?DO bl T c, H tchar +LOOP ;
1610 :	anton	1.1
1611 :	jwilke	1.71	: >address dup 0>= IF tbyte / THEN ; \ ?? jaw
1612 :	pazsan	1.59	: A! swap >address swap dup relon T ! H ;
1613 :			: A, ( w -- ) >address T here H relon T , H ;
1614 :	anton	1.1
1615 :	jwilke	1.103
1616 :			\ \ -------------------- Host/Target copy etc. 29aug01jaw
1617 :
1618 :
1619 :			>CROSS
1620 :
1621 :	jwilke	1.107	: TD! >image DS! ;
1622 :			: TD@ >image DS@ ;
1623 :
1624 :	jwilke	1.103	: th-count ( taddr -- host-addr len )
1625 :			\G returns host address of target string
1626 :			assert1( tbyte 1 = )
1627 :			dup X c@ swap X char+ >image swap ;
1628 :
1629 :			: ht-move ( haddr taddr len -- )
1630 :			\G moves data from host-addr to destination in target-addr
1631 :			\G character by character
1632 :			swap -rot bounds ?DO I c@ over X c! X char+ LOOP drop ;
1633 :
1634 :			2Variable last-string
1635 :
1636 :			: ht-string, ( addr count -- )
1637 :			dup there swap last-string 2!
1638 :			dup T c, H bounds ?DO I c@ T c, H LOOP ;
1639 :
1640 :			>TARGET
1641 :
1642 :			: count dup X c@ swap X char+ swap ;
1643 :			\ FIXME -1 on 64 bit machines?!?!
1644 :			: on T -1 swap ! H ;
1645 :			: off T 0 swap ! H ;
1646 :	anton	1.1
1647 :	jwilke	1.107	: tcmove ( source dest len -- )
1648 :			\G cmove in target memory
1649 :			tchar * bounds
1650 :			?DO dup T c@ H I T c! H 1+
1651 :			tchar +LOOP drop ;
1652 :
1653 :			: td, ( d -- )
1654 :			\G Store a host value as one cell into the target
1655 :			there tcell X allot TD! ;
1656 :
1657 :			\ \ Load Assembler
1658 :
1659 :			>TARGET
1660 :			H also Forth definitions
1661 :
1662 :			\ FIXME: should we include the assembler really in the forth
1663 :			\ dictionary?!?!?!? This conflicts with the existing assembler
1664 :			\ of the host forth system!!
1665 :			[IFDEF] asm-include asm-include [THEN] hex
1666 :
1667 :			previous
1668 :
1669 :
1670 :	jwilke	1.52	>CROSS
1671 :
1672 :	jwilke	1.103	: (cc) T a, H ; ' (cc) plugin-of colon,
1673 :	jwilke	1.105	: (prim) T a, H ; ' (prim) plugin-of prim,
1674 :	jwilke	1.52
1675 :	jwilke	1.105	: (cr) >tempdp ]comp prim, comp[ tempdp> ; ' (cr) plugin-of colon-resolve
1676 :	jwilke	1.103	: (ar) T ! H ; ' (ar) plugin-of addr-resolve
1677 :	pazsan	1.54	: (dr) ( ghost res-pnt target-addr addr )
1678 :			>tempdp drop over
1679 :			dup >magic @ <do:> =
1680 :			IF doer,
1681 :			ELSE dodoes,
1682 :			THEN
1683 :	jwilke	1.103	tempdp> ; ' (dr) plugin-of doer-resolve
1684 :	pazsan	1.54
1685 :			: (cm) ( -- addr )
1686 :			T here align H
1687 :	jwilke	1.103	-1 colon, ; ' (cm) plugin-of colonmark,
1688 :	anton	1.1
1689 :	jwilke	1.52	>TARGET
1690 :	jwilke	1.105	: compile, ( xt -- )
1691 :	jwilke	1.107	dup xt>ghost >comp @ EXECUTE ;
1692 :	jwilke	1.52	>CROSS
1693 :	anton	1.1
1694 :	jwilke	1.102	\ resolve structure
1695 :
1696 :			: >next ; \ link to next field
1697 :			: >tag cell+ ; \ indecates type of reference: 0: call, 1: address, 2: doer
1698 :			: >taddr cell+ cell+ ;
1699 :			: >ghost 3 cells + ;
1700 :			: >file 4 cells + ;
1701 :			: >line 5 cells + ;
1702 :
1703 :			: (refered) ( ghost addr tag -- )
1704 :			\G creates a reference to ghost at address taddr
1705 :	jwilke	1.103	>space
1706 :			rot >link linked
1707 :	jwilke	1.102	( taddr tag ) ,
1708 :			( taddr ) ,
1709 :			last-header-ghost @ ,
1710 :			loadfile ,
1711 :			sourceline# ,
1712 :	jwilke	1.103	space>
1713 :	jwilke	1.102	;
1714 :
1715 :	jwilke	1.52	: refered ( ghost tag -- )
1716 :	jwilke	1.53	\G creates a resolve structure
1717 :	pazsan	1.54	T here aligned H swap (refered)
1718 :			;
1719 :
1720 :			: killref ( addr ghost -- )
1721 :			\G kills a forward reference to ghost at position addr
1722 :			\G this is used to eleminate a :dovar refence after making a DOES>
1723 :			dup >magic @ <fwd> <> IF 2drop EXIT THEN
1724 :			swap >r >link
1725 :			BEGIN dup @ dup ( addr last this )
1726 :			WHILE dup >taddr @ r@ =
1727 :			IF @ over !
1728 :			ELSE nip THEN
1729 :			REPEAT rdrop 2drop
1730 :	jwilke	1.53	;
1731 :	anton	1.48
1732 :	jwilke	1.52	Defer resolve-warning
1733 :	anton	1.1
1734 :	jwilke	1.52	: reswarn-test ( ghost res-struct -- ghost res-struct )
1735 :	jwilke	1.78	over cr ." Resolving " .ghost dup ." in " >ghost @ .ghost ;
1736 :	anton	1.1
1737 :	jwilke	1.52	: reswarn-forward ( ghost res-struct -- ghost res-struct )
1738 :	jwilke	1.78	over warnhead .ghost dup ." is referenced in "
1739 :			>ghost @ .ghost ;
1740 :	anton	1.1
1741 :	jwilke	1.52	\ ' reswarn-test IS resolve-warning
1742 :
1743 :	anton	1.1	\ resolve 14oct92py
1744 :
1745 :	pazsan	1.54	: resolve-loop ( ghost resolve-list tcfa -- )
1746 :			>r
1747 :			BEGIN dup WHILE
1748 :			\ dup >tag @ 2 = IF reswarn-forward THEN
1749 :			resolve-warning
1750 :			r@ over >taddr @
1751 :			2 pick >tag @
1752 :			CASE 0 OF colon-resolve ENDOF
1753 :			1 OF addr-resolve ENDOF
1754 :			2 OF doer-resolve ENDOF
1755 :			ENDCASE
1756 :			@ \ next list element
1757 :			REPEAT 2drop rdrop
1758 :			;
1759 :	jwilke	1.52
1760 :			\ : resolve-loop ( ghost tcfa -- ghost tcfa )
1761 :			\ >r dup >link @
1762 :			\ BEGIN dup WHILE dup T @ H r@ rot T ! H REPEAT drop r> ;
1763 :	anton	1.1
1764 :			\ exists 9may93jaw
1765 :
1766 :	jwilke	1.103	: exists ( ghost tcfa -- )
1767 :			\G print warning and set new target link in ghost
1768 :			swap exists-warning
1769 :			>link ! ;
1770 :	jwilke	1.52
1771 :	jwilke	1.105	: colon-resolved ( ghost -- )
1772 :			>link @ colon, ; \ compile-call
1773 :
1774 :			: prim-resolved ( ghost -- )
1775 :			>link @ prim, ;
1776 :
1777 :			\ FIXME: not activated
1778 :			: does-resolved ( ghost -- )
1779 :			dup g>body alit, >do:ghost @ g>body colon, ;
1780 :
1781 :			: (is-forward) ( ghost -- )
1782 :			colonmark, 0 (refered) ; \ compile space for call
1783 :			' (is-forward) IS is-forward
1784 :	anton	1.1
1785 :			: resolve ( ghost tcfa -- )
1786 :	pazsan	1.54	\G resolve referencies to ghost with tcfa
1787 :	jwilke	1.103	dup taddr>region 0<> IF
1788 :			2dup (>regiontype) define-addr-struct addr-xt-ghost
1789 :
1790 :			\ we define new address only if empty
1791 :	jwilke	1.105	\ this is for not to take over the alias ghost
1792 :			\ (different ghost, but identical xt)
1793 :	jwilke	1.103	\ but the very first that really defines it
1794 :			dup @ 0= IF ! ELSE 2drop THEN
1795 :			THEN
1796 :
1797 :			\ is ghost resolved?, second resolve means another
1798 :			\ definition with the same name
1799 :	jwilke	1.75	over undefined? 0= IF exists EXIT THEN
1800 :	pazsan	1.54	\ get linked-list
1801 :			swap >r r@ >link @ swap \ ( list tcfa R: ghost )
1802 :			\ mark ghost as resolved
1803 :			dup r@ >link ! <res> r@ >magic !
1804 :	jwilke	1.105	r@ >comp @ ['] is-forward = IF
1805 :			['] prim-resolved r@ >comp ! THEN
1806 :	pazsan	1.54	\ loop through forward referencies
1807 :			r> -rot
1808 :			comp-state @ >r Resolving comp-state !
1809 :			resolve-loop
1810 :			r> comp-state !
1811 :
1812 :			['] noop IS resolve-warning
1813 :	jwilke	1.52	;
1814 :	anton	1.1
1815 :			\ gexecute ghost, 01nov92py
1816 :
1817 :	jwilke	1.105	\ FIXME cleanup
1818 :			\ : is-resolved ( ghost -- )
1819 :			\ >link @ colon, ; \ compile-call
1820 :	jwilke	1.102
1821 :	jwilke	1.103	: (gexecute) ( ghost -- )
1822 :	jwilke	1.105	dup >comp @ EXECUTE ;
1823 :	jwilke	1.103
1824 :			: gexecute ( ghost -- )
1825 :	jwilke	1.105	dup >magic @ <imm> = IF -1 ABORT" CROSS: gexecute on immediate word" THEN
1826 :	jwilke	1.103	(gexecute) ;
1827 :	jwilke	1.52
1828 :			: addr, ( ghost -- )
1829 :	jwilke	1.105	dup forward? IF 1 refered 0 T a, H ELSE >link @ T a, H THEN ;
1830 :	jwilke	1.52
1831 :			\ !! : ghost, ghost gexecute ;
1832 :	anton	1.1
1833 :			\ .unresolved 11may93jaw
1834 :
1835 :			variable ResolveFlag
1836 :
1837 :			\ ?touched 11may93jaw
1838 :
1839 :	jwilke	1.52	: ?touched ( ghost -- flag ) dup forward? swap >link @
1840 :	anton	1.1	0 <> and ;
1841 :
1842 :	jwilke	1.53	: .forwarddefs ( ghost -- )
1843 :	jwilke	1.103	." 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 :	jwilke	1.53	ELSE drop
1858 :			THEN ;
1859 :	anton	1.1
1860 :			: .unresolved ( -- )
1861 :			ResolveFlag off cr ." Unresolved: "
1862 :	jwilke	1.103	ghost-list
1863 :	anton	1.1	BEGIN @ dup
1864 :			WHILE dup ?resolved
1865 :	anton	1.10	REPEAT drop ResolveFlag @
1866 :			IF
1867 :	anton	1.48	-1 abort" Unresolved words!"
1868 :	anton	1.10	ELSE
1869 :			." Nothing!"
1870 :			THEN
1871 :			cr ;
1872 :	anton	1.1
1873 :	jwilke	1.52	: .stats
1874 :			base @ >r decimal
1875 :			cr ." named Headers: " headers-named @ .
1876 :			r> base ! ;
1877 :
1878 :	jwilke	1.79	>MINIMAL
1879 :
1880 :			: .unresolved .unresolved ;
1881 :
1882 :	anton	1.1	>CROSS
1883 :			\ Header states 12dec92py
1884 :
1885 :	jwilke	1.102	\ : flag! ( 8b -- ) tlast @ dup >r T c@ xor r> c! H ;
1886 :	pazsan	1.90	bigendian [IF] 0 [ELSE] tcell 1- [THEN] Constant flag+
1887 :			: flag! ( w -- ) tlast @ flag+ + dup >r T c@ xor r> c! H ;
1888 :	anton	1.1
1889 :			VARIABLE ^imm
1890 :
1891 :	jwilke	1.105	\ !! should be target wordsize specific
1892 :			$80 constant alias-mask
1893 :			$40 constant immediate-mask
1894 :			$20 constant restrict-mask
1895 :
1896 :	anton	1.1	>TARGET
1897 :	jwilke	1.105	: immediate immediate-mask flag!
1898 :	pazsan	1.18	^imm @ @ dup <imm> = IF drop EXIT THEN
1899 :	anton	1.1	<res> <> ABORT" CROSS: Cannot immediate a unresolved word"
1900 :			<imm> ^imm @ ! ;
1901 :	jwilke	1.105	: restrict restrict-mask flag! ;
1902 :	jwilke	1.52
1903 :	pazsan	1.54	: 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 :	anton	1.1	>CROSS
1908 :
1909 :			\ Target Header Creation 01nov92py
1910 :
1911 :	jwilke	1.103	: ht-lstring, ( addr count -- )
1912 :	jwilke	1.102	dup T , H bounds ?DO I c@ T c, H LOOP ;
1913 :
1914 :	jwilke	1.103	>TARGET
1915 :			: name, ( "name" -- ) bl word count ht-lstring, X cfalign ;
1916 :	anton	1.1	: view, ( -- ) ( dummy ) ;
1917 :	jwilke	1.52	>CROSS
1918 :	anton	1.1
1919 :	pazsan	1.25	\ Target Document Creation (goes to crossdoc.fd) 05jul95py
1920 :
1921 :	pazsan	1.55	s" ./doc/crossdoc.fd" r/w create-file throw value doc-file-id
1922 :	pazsan	1.25	\ contains the file-id of the documentation file
1923 :
1924 :	pazsan	1.40	: T-\G ( -- )
1925 :	pazsan	1.25	source >in @ /string doc-file-id write-line throw
1926 :	pazsan	1.40	postpone \ ;
1927 :	pazsan	1.25
1928 :	pazsan	1.39	Variable to-doc to-doc on
1929 :	pazsan	1.25
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 :	jwilke	1.102
1936 :	jwilke	1.105	Last-Header-Ghost @ >ghostname doc-file-id write-file throw
1937 :	pazsan	1.25	>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 :	pazsan	1.40	T-\G
1943 :	pazsan	1.25	>in !
1944 :	pazsan	1.39	THEN ;
1945 :	pazsan	1.25
1946 :	pazsan	1.28	\ Target TAGS creation
1947 :
1948 :	pazsan	1.39	s" kernel.TAGS" r/w create-file throw value tag-file-id
1949 :	pazsan	1.28	\ 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 :	jwilke	1.77	sourcefilename last-loadfilename 2@ d<>
1959 :	pazsan	1.28	IF
1960 :			tag-bof count tag-file-id write-line throw
1961 :	anton	1.31	sourcefilename 2dup
1962 :	pazsan	1.28	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 :	jwilke	1.77	tlast @ >image count 1F and tag-file-id write-file throw
1974 :	pazsan	1.28	tag-end count tag-file-id write-file throw
1975 :	anton	1.31	base @ decimal sourceline# 0 <# #s #> tag-file-id write-file throw
1976 :	pazsan	1.28	\ >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 :	pazsan	1.43	\ Check for words
1982 :
1983 :			Defer skip? ' false IS skip?
1984 :
1985 :	jwilke	1.103	: skipdef ( "name" -- )
1986 :	jwilke	1.79	\G skip definition of an undefined word in undef-words and
1987 :			\G all-words mode
1988 :	jwilke	1.103	Ghost dup forward?
1989 :	jwilke	1.75	IF >magic <skip> swap !
1990 :			ELSE drop THEN ;
1991 :
1992 :	jwilke	1.103	: tdefined? ( "name" -- flag )
1993 :			Ghost undefined? 0= ;
1994 :	jwilke	1.75
1995 :	jwilke	1.103	: defined2? ( "name" -- flag )
1996 :	jwilke	1.75	\G return true for anything else than forward, even for <skip>
1997 :			\G that's what we want
1998 :	jwilke	1.103	Ghost forward? 0= ;
1999 :	pazsan	1.43
2000 :	jwilke	1.103	: forced? ( "name" -- flag )
2001 :	jwilke	1.79	\G return ture if it is a foreced skip with defskip
2002 :	jwilke	1.103	Ghost >magic @ <skip> = ;
2003 :	jwilke	1.79
2004 :	pazsan	1.43	: needed? ( -- flag ) \ name
2005 :	anton	1.48	\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 :	jwilke	1.75	IF dup undefined?
2011 :	anton	1.48	nip
2012 :			0=
2013 :			ELSE drop true THEN ;
2014 :	pazsan	1.43
2015 :	pazsan	1.44	: doer? ( -- flag ) \ name
2016 :	jwilke	1.103	Ghost >magic @ <do:> = ;
2017 :	pazsan	1.44
2018 :	pazsan	1.43	: skip-defs ( -- )
2019 :			BEGIN refill WHILE source -trailing nip 0= UNTIL THEN ;
2020 :
2021 :	pazsan	1.28	\ Target header creation
2022 :
2023 :	pazsan	1.54	Variable NoHeaderFlag
2024 :			NoHeaderFlag off
2025 :	anton	1.1
2026 :	pazsan	1.54	: 0.r ( n1 n2 -- )
2027 :			base @ >r hex
2028 :			0 swap <# 0 ?DO # LOOP #> type
2029 :			r> base ! ;
2030 :	jwilke	1.84
2031 :			: .sym ( adr len -- )
2032 :			\G escapes / and \ to produce sed output
2033 :	jwilke	1.52	bounds
2034 :			DO I c@ dup
2035 :	jwilke	1.77	CASE [char] / OF drop ." \/" ENDOF
2036 :			[char] \ OF drop ." \\" ENDOF
2037 :	jwilke	1.52	dup OF emit ENDOF
2038 :			ENDCASE
2039 :	pazsan	1.54	LOOP ;
2040 :	jwilke	1.52
2041 :	jwilke	1.103	Defer setup-execution-semantics
2042 :			0 Value lastghost
2043 :
2044 :			: (THeader ( "name" -- ghost )
2045 :	pazsan	1.54	\ >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 :	jwilke	1.78	tlast @ dup 0> IF tcell - THEN T A, H there tlast !
2054 :	pazsan	1.54	1 headers-named +! \ Statistic
2055 :			>in @ T name, H >in !
2056 :			THEN
2057 :			T cfalign here H tlastcfa !
2058 :	jwilke	1.84	\ Old Symbol table sed-script
2059 :	pazsan	1.54	\ >in @ cr ." sym:s/CFA=" there 4 0.r ." /" bl word count .sym ." /g" cr >in !
2060 :	jwilke	1.103	HeaderGhost
2061 :	jwilke	1.84	\ 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 :	jwilke	1.103	dup Last-Header-Ghost ! dup to lastghost
2068 :	pazsan	1.54	dup >magic ^imm ! \ a pointer for immediate
2069 :	jwilke	1.105	alias-mask flag!
2070 :	jwilke	1.103	cross-doc-entry cross-tag-entry
2071 :			setup-execution-semantics
2072 :			;
2073 :	anton	1.1
2074 :	jwilke	1.52	\ this is the resolver information from ":"
2075 :			\ resolving is done by ";"
2076 :	jwilke	1.103	Variable ;Resolve 1 cells allot
2077 :
2078 :			: hereresolve ( ghost -- )
2079 :			there resolve 0 ;Resolve ! ;
2080 :	anton	1.1
2081 :	pazsan	1.11	: Theader ( "name" -- ghost )
2082 :	jwilke	1.103	(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 :	anton	1.1
2095 :			>TARGET
2096 :	jwilke	1.103
2097 :	anton	1.1	: Alias ( cfa -- ) \ name
2098 :	jwilke	1.103	>in @ skip? IF 2drop EXIT THEN >in !
2099 :			(THeader ( S xt ghost )
2100 :	jwilke	1.105	2dup swap xt>ghost swap copy-execution-semantics
2101 :			over resolve T A, H alias-mask flag! ;
2102 :	jwilke	1.103
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 :			: aprim ( -- )
2115 :			THeader -1 aprim-nr +! aprim-nr @ T A, H
2116 :			asmprimname,
2117 :			setup-prim-semantics ;
2118 :
2119 :			: aprim: ( -- )
2120 :			-1 aprim-nr +! aprim-nr @
2121 :			Ghost tuck swap resolve <do:> swap tuck >magic !
2122 :			asmprimname, ;
2123 :
2124 :	pazsan	1.42	: Alias: ( cfa -- ) \ name
2125 :	jwilke	1.103	>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 :	pazsan	1.64
2132 :			Variable prim#
2133 :			: first-primitive ( n -- ) prim# ! ;
2134 :			: Primitive ( -- ) \ name
2135 :	jwilke	1.103	>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 :	jwilke	1.105	dup >ghost-flags <primitive> set-flag
2142 :			over resolve T A, H alias-mask flag!
2143 :	jwilke	1.103	-1 prim# +! ;
2144 :	anton	1.1	>CROSS
2145 :
2146 :			\ Conditionals and Comments 11may93jaw
2147 :
2148 :	jwilke	1.103	\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 :	anton	1.1	: ;Cond
2157 :			postpone ;
2158 :			swap ! ; immediate
2159 :
2160 :	jwilke	1.103	: 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 :	anton	1.1	:NONAME ;
2168 :
2169 :
2170 :			: Comment ( -- )
2171 :	jwilke	1.103	>in @ Ghost swap >in ! ' swap
2172 :			2dup >exec-compile ! >exec ! ;
2173 :	anton	1.1
2174 :			Comment ( Comment \
2175 :
2176 :			\ compile 10may93jaw
2177 :
2178 :	jwilke	1.103	: 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 :	jwilke	1.52	>TARGET
2186 :
2187 :	jwilke	1.105	: ' ( -- xt )
2188 :			\G returns the target-cfa of a ghost
2189 :	jwilke	1.52	bl word gfind 0= ABORT" CROSS: Ghost don't exists"
2190 :	jwilke	1.105	g>xt ;
2191 :	jwilke	1.52
2192 :	jwilke	1.103	\ FIXME: this works for the current use cases, but is not
2193 :			\ in all cases correct ;-)
2194 :			: comp' X ' 0 ;
2195 :
2196 :	jwilke	1.52	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 :	jwilke	1.105	postpone [G'] state @ IF postpone g>xt ELSE g>xt THEN ; immediate
2203 :	pazsan	1.42
2204 :	jwilke	1.52	\ \ threading modell 13dec92py
2205 :			\ modularized 14jun97jaw
2206 :
2207 :	jwilke	1.106	T 2 cells H Value xt>body
2208 :	jwilke	1.52
2209 :	jwilke	1.103	: (>body) ( cfa -- pfa )
2210 :	jwilke	1.105	xt>body + ; ' (>body) plugin-of t>body
2211 :
2212 :			: fillcfa ( usedcells -- )
2213 :	jwilke	1.106	T cells H xt>body swap -
2214 :	jwilke	1.105	assert1( dup 0 >= )
2215 :			0 ?DO 0 X c, tchar +LOOP ;
2216 :	jwilke	1.52
2217 :	jwilke	1.103	: (doer,) ( ghost -- )
2218 :	jwilke	1.105	addr, 1 fillcfa ; ' (doer,) plugin-of doer,
2219 :	jwilke	1.52
2220 :	jwilke	1.105	: (docol,) ( -- ) [G'] :docol (doer,) ; ' (docol,) plugin-of docol,
2221 :	jwilke	1.52
2222 :			: (doprim,) ( -- )
2223 :	jwilke	1.105	there xt>body + ca>native T a, H 1 fillcfa ; ' (doprim,) plugin-of doprim,
2224 :	jwilke	1.52
2225 :			: (doeshandler,) ( -- )
2226 :	jwilke	1.105	T cfalign H compile :doesjump T 0 , H ; ' (doeshandler,) plugin-of doeshandler,
2227 :	jwilke	1.52
2228 :			: (dodoes,) ( does-action-ghost -- )
2229 :			]comp [G'] :dodoes gexecute comp[
2230 :			addr,
2231 :	jwilke	1.103	\ 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 :	jwilke	1.105	2 fillcfa ; ' (dodoes,) plugin-of dodoes,
2235 :	jwilke	1.52
2236 :	jwilke	1.107	: (dlit,) ( n -- ) compile lit td, ; ' (dlit,) plugin-of dlit,
2237 :
2238 :			: (lit,) ( n -- ) s>d dlit, ; ' (lit,) plugin-of lit,
2239 :	jwilke	1.52
2240 :	jwilke	1.67	\ if we dont produce relocatable code alit, defaults to lit, jaw
2241 :	jwilke	1.84	\ this is just for convenience, so we don't have to define alit,
2242 :			\ seperately for embedded systems....
2243 :			T has? relocate H
2244 :	jwilke	1.67	[IF]
2245 :	jwilke	1.105	: (alit,) ( n -- ) compile lit T a, H ; ' (alit,) plugin-of alit,
2246 :	jwilke	1.67	[ELSE]
2247 :	jwilke	1.105	: (alit,) ( n -- ) lit, ; ' (alit,) plugin-of alit,
2248 :	jwilke	1.67	[THEN]
2249 :	jwilke	1.52
2250 :	jwilke	1.105	: (fini,) compile ;s ; ' (fini,) plugin-of fini,
2251 :	pazsan	1.42
2252 :	pazsan	1.43	[IFUNDEF] (code)
2253 :			Defer (code)
2254 :			Defer (end-code)
2255 :			[THEN]
2256 :
2257 :	anton	1.1	>TARGET
2258 :	pazsan	1.43	: Code
2259 :	jwilke	1.52	defempty?
2260 :	anton	1.48	(THeader there resolve
2261 :	jwilke	1.53	[ T e? prims H 0= [IF] T e? ITC H [ELSE] true [THEN] ] [IF]
2262 :	jwilke	1.52	doprim,
2263 :	anton	1.48	[THEN]
2264 :			depth (code) ;
2265 :	pazsan	1.43
2266 :			: Code:
2267 :	jwilke	1.52	defempty?
2268 :	jwilke	1.103	Ghost dup there ca>native resolve <do:> swap >magic !
2269 :	pazsan	1.43	depth (code) ;
2270 :
2271 :			: end-code
2272 :	jwilke	1.52	(end-code)
2273 :	pazsan	1.43	depth ?dup IF 1- <> ABORT" CROSS: Stack changed"
2274 :			ELSE true ABORT" CROSS: Stack empty" THEN
2275 :	jwilke	1.52	;
2276 :	anton	1.14
2277 :	anton	1.1	>CROSS
2278 :	jwilke	1.52
2279 :	anton	1.1	\ tLiteral 12dec92py
2280 :
2281 :			>TARGET
2282 :	pazsan	1.40	Cond: \G T-\G ;Cond
2283 :
2284 :	jwilke	1.105	Cond: Literal ( n -- ) lit, ;Cond
2285 :	jwilke	1.103	Cond: ALiteral ( n -- ) alit, ;Cond
2286 :	anton	1.1
2287 :			: Char ( "<char>" -- ) bl word char+ c@ ;
2288 :	jwilke	1.103	Cond: [Char] ( "<char>" -- ) Char lit, ;Cond
2289 :
2290 :	jwilke	1.104	tchar 1 = [IF]
2291 :			Cond: chars ;Cond
2292 :			[THEN]
2293 :	anton	1.1
2294 :	pazsan	1.43	\ some special literals 27jan97jaw
2295 :
2296 :	jwilke	1.52	\ !! Known Bug: Special Literals and plug-ins work only correct
2297 :	jwilke	1.102	\ on 16 and 32 Bit Targets and 32 Bit Hosts!
2298 :	jwilke	1.52
2299 :	jwilke	1.107	\ This section could be done with dlit, now. But first I need
2300 :			\ some test code JAW
2301 :
2302 :	pazsan	1.43	Cond: MAXU
2303 :	jwilke	1.102	tcell 1 cells u>
2304 :			IF compile lit tcell 0 ?DO FF T c, H LOOP
2305 :			ELSE ffffffff lit, THEN
2306 :	jwilke	1.52	;Cond
2307 :	pazsan	1.43
2308 :			Cond: MINI
2309 :	jwilke	1.102	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 :	jwilke	1.52	;Cond
2316 :	pazsan	1.43
2317 :			Cond: MAXI
2318 :	jwilke	1.102	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 :	pazsan	1.43	;Cond
2325 :
2326 :	anton	1.1	>CROSS
2327 :			\ Target compiling loop 12dec92py
2328 :			\ ">tib trick thrown out 10may93jaw
2329 :			\ number? defined at the top 11may93jaw
2330 :	jwilke	1.77	\ replaced >in by save-input
2331 :
2332 :			: discard 0 ?DO drop LOOP ;
2333 :	anton	1.1
2334 :			\ compiled word might leave items on stack!
2335 :	jwilke	1.77	: tcom ( x1 .. xn n name -- )
2336 :			\ dup count type space
2337 :	jwilke	1.103	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 :	jwilke	1.77	EXIT
2342 :			THEN
2343 :			number? dup
2344 :			IF 0> IF swap lit, THEN lit, discard
2345 :	jwilke	1.103	ELSE 2drop restore-input throw Ghost gexecute THEN ;
2346 :	anton	1.1
2347 :			>TARGET
2348 :			\ : ; DOES> 13dec92py
2349 :			\ ] 9may93py/jaw
2350 :
2351 :	jwilke	1.105	: compiling-state ( -- )
2352 :			\G set states to compililng
2353 :	pazsan	1.54	Compiling comp-state !
2354 :	jwilke	1.103	\ if we have a state in target, change it with the compile state
2355 :	jwilke	1.105	[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 :	anton	1.1	BEGIN
2368 :	jwilke	1.77	BEGIN save-input bl word
2369 :			dup c@ 0= WHILE drop discard refill 0=
2370 :	anton	1.1	ABORT" CROSS: End of file while target compiling"
2371 :			REPEAT
2372 :			tcom
2373 :	jwilke	1.103	compiling? 0=
2374 :	anton	1.1	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 :			: : ( -- colon-sys ) \ Name
2380 :	jwilke	1.52	defempty?
2381 :			constflag off \ don't let this flag work over colon defs
2382 :			\ just to go sure nothing unwanted happens
2383 :	pazsan	1.43	>in @ skip? IF drop skip-defs EXIT THEN >in !
2384 :	anton	1.1	(THeader ;Resolve ! there ;Resolve cell+ !
2385 :	jwilke	1.103	docol, ]comp colon-start depth T ] H ;
2386 :	anton	1.1
2387 :	pazsan	1.37	: :noname ( -- colon-sys )
2388 :	jwilke	1.103	X cfalign
2389 :			\ FIXME: cleanup!!!!!!!!
2390 :			\ idtentical to : with dummy ghost?!
2391 :			here ghostheader dup ;Resolve ! dup last-header-ghost ! to lastghost
2392 :			there ;Resolve cell+ !
2393 :			there docol, ]comp
2394 :			colon-start depth T ] H ;
2395 :	pazsan	1.37
2396 :	jwilke	1.103	Cond: EXIT ( -- ) compile ;S ;Cond
2397 :	anton	1.6
2398 :			Cond: ?EXIT ( -- ) 1 abort" CROSS: using ?exit" ;Cond
2399 :	pazsan	1.2
2400 :	jwilke	1.52	>CROSS
2401 :			: LastXT ;Resolve @ 0= abort" CROSS: no definition for LastXT"
2402 :			;Resolve cell+ @ ;
2403 :
2404 :			>TARGET
2405 :
2406 :	jwilke	1.103	Cond: recurse ( -- ) Last-Header-Ghost @ gexecute ;Cond
2407 :	jwilke	1.52
2408 :	jwilke	1.103	Cond: ; ( -- )
2409 :	jwilke	1.105	depth ?dup
2410 :			IF 1- <> ABORT" CROSS: Stack changed"
2411 :			ELSE true ABORT" CROSS: Stack empty"
2412 :			THEN
2413 :			colon-end
2414 :			fini,
2415 :			comp[
2416 :			;Resolve @
2417 :			IF ;Resolve @ ;Resolve cell+ @ resolve
2418 :			['] colon-resolved ;Resolve @ >comp !
2419 :			THEN
2420 :			interpreting-state
2421 :			;Cond
2422 :
2423 :			Cond: [ ( -- ) interpreting-state ;Cond
2424 :	anton	1.1
2425 :			>CROSS
2426 :	pazsan	1.54
2427 :			Create GhostDummy ghostheader
2428 :			<res> GhostDummy >magic !
2429 :
2430 :	jwilke	1.52	: !does ( does-action -- )
2431 :			\ !! zusammenziehen und dodoes, machen!
2432 :	pazsan	1.54	tlastcfa @ [G'] :dovar killref
2433 :			\ tlastcfa @ dup there >r tdp ! compile :dodoes r> tdp ! T cell+ ! H ;
2434 :	jwilke	1.52	\ !! geht so nicht, da dodoes, ghost will!
2435 :	pazsan	1.54	GhostDummy >link ! GhostDummy
2436 :			tlastcfa @ >tempdp dodoes, tempdp> ;
2437 :	anton	1.1
2438 :	jwilke	1.103
2439 :			Defer instant-interpret-does>-hook
2440 :
2441 :			: resolve-does>-part ( -- )
2442 :			\ resolve words made by builders
2443 :	jwilke	1.105	Last-Header-Ghost @ >do:ghost @ ?dup
2444 :			IF there resolve
2445 :			\ TODO: set special DOES> resolver action here
2446 :			THEN ;
2447 :	jwilke	1.103
2448 :	anton	1.1	>TARGET
2449 :	jwilke	1.103	Cond: DOES>
2450 :			compile (does>) doeshandler,
2451 :			resolve-does>-part
2452 :	anton	1.1	;Cond
2453 :	jwilke	1.103
2454 :			: DOES> switchrom doeshandler, T here H !does
2455 :			instant-interpret-does>-hook
2456 :			depth T ] H ;
2457 :	anton	1.1
2458 :			>CROSS
2459 :			\ Creation 01nov92py
2460 :
2461 :			\ Builder 11may93jaw
2462 :
2463 :	jwilke	1.105	: Builder ( Create-xt do-ghost "name" -- )
2464 :	jwilke	1.52	\ builds up a builder in current vocabulary
2465 :			\ create-xt is executed when word is interpreted
2466 :	jwilke	1.106	\ do:-xt is executed when the created word from builder is executed
2467 :	jwilke	1.105	\ for do:-xt an additional entry after the normal ghost-entrys is used
2468 :	jwilke	1.52
2469 :	jwilke	1.105	Make-Ghost ( Create-xt do-ghost ghost )
2470 :	jwilke	1.103	dup >created on
2471 :	jwilke	1.105	rot swap ( do-ghost Create-xt ghost )
2472 :			tuck >exec !
2473 :			tuck >do:ghost !
2474 :			['] prim-resolved over >comp !
2475 :			drop ;
2476 :	anton	1.1
2477 :	jwilke	1.52	: gdoes, ( ghost -- )
2478 :			\ makes the codefield for a word that is built
2479 :	jwilke	1.103	>do:ghost @ dup undefined? 0=
2480 :	jwilke	1.52	IF
2481 :	pazsan	1.42	dup >magic @ <do:> =
2482 :	pazsan	1.54	IF doer,
2483 :			ELSE dodoes,
2484 :			THEN
2485 :			EXIT
2486 :	jwilke	1.52	THEN
2487 :			\ compile :dodoes gexecute
2488 :			\ T here H tcell - reloff
2489 :	pazsan	1.54	2 refered
2490 :			0 fillcfa
2491 :			;
2492 :	anton	1.1
2493 :	jwilke	1.103	: takeover-x-semantics ( S constructor-ghost new-ghost -- )
2494 :	jwilke	1.105	\g stores execution semantic and compilation semantic in the built word
2495 :	jwilke	1.103	\g if the word already has a semantic (concerns S", IS, .", DOES>)
2496 :			\g then keep it
2497 :	jwilke	1.105	swap >do:ghost @
2498 :			\ we use the >exec2 field for the semantic of a crated word,
2499 :			\ so predefined semantics e.g. for ....
2500 :			\ FIXME: find an example in the normal kernel!!!
2501 :			2dup >exec @ swap >exec2 !
2502 :			>comp @ swap >comp ! ;
2503 :			\ old version of this:
2504 :	jwilke	1.103	\ >exec dup @ ['] NoExec =
2505 :			\ IF swap >do:ghost @ >exec @ swap ! ELSE 2drop THEN ;
2506 :
2507 :	jwilke	1.52	: TCreate ( <name> -- )
2508 :			create-forward-warn
2509 :			IF ['] reswarn-forward IS resolve-warning THEN
2510 :	jwilke	1.103	executed-ghost @ (Theader
2511 :			dup >created on
2512 :			2dup takeover-x-semantics hereresolve gdoes, ;
2513 :	jwilke	1.52
2514 :			: RTCreate ( <name> -- )
2515 :			\ creates a new word with code-field in ram
2516 :			create-forward-warn
2517 :			IF ['] reswarn-forward IS resolve-warning THEN
2518 :			\ make Alias
2519 :	jwilke	1.103	executed-ghost @ (THeader
2520 :			dup >created on
2521 :			2dup takeover-x-semantics
2522 :	jwilke	1.105	there 0 T a, H alias-mask flag!
2523 :	jwilke	1.103	\ store poiter to code-field
2524 :	jwilke	1.52	switchram T cfalign H
2525 :			there swap T ! H
2526 :			there tlastcfa !
2527 :	jwilke	1.103	hereresolve gdoes, ;
2528 :	anton	1.1
2529 :			: Build: ( -- [xt] [colon-sys] )
2530 :	jwilke	1.52	:noname postpone TCreate ;
2531 :
2532 :			: BuildSmart: ( -- [xt] [colon-sys] )
2533 :			:noname
2534 :	jwilke	1.53	[ T has? rom H [IF] ]
2535 :	jwilke	1.52	postpone RTCreate
2536 :			[ [ELSE] ]
2537 :			postpone TCreate
2538 :			[ [THEN] ] ;
2539 :	anton	1.1
2540 :			: gdoes> ( ghost -- addr flag )
2541 :	jwilke	1.52	executed-ghost @
2542 :	jwilke	1.105	\ FIXME: cleanup
2543 :	jwilke	1.103	\ compiling? ABORT" CROSS: Executing gdoes> while compiling"
2544 :			\ ?! compiling? IF gexecute true EXIT THEN
2545 :	jwilke	1.105	g>body ( false ) ;
2546 :	anton	1.1
2547 :			\ DO: ;DO 11may93jaw
2548 :			\ changed to ?EXIT 10may93jaw
2549 :
2550 :	jwilke	1.107	: DO: ( -- do-ghost [xt] [colon-sys] )
2551 :	anton	1.1	here ghostheader
2552 :	jwilke	1.103	:noname postpone gdoes> ( postpone ?EXIT ) ;
2553 :	anton	1.1
2554 :	jwilke	1.107	: by: ( -- do-ghost [xt] [colon-sys] ) \ name
2555 :	jwilke	1.103	Ghost
2556 :			:noname postpone gdoes> ( postpone ?EXIT ) ;
2557 :	pazsan	1.42
2558 :	jwilke	1.107	: ;DO ( do-ghost [xt] [colon-sys] -- do-ghost )
2559 :	anton	1.1	postpone ; ( S addr xt )
2560 :			over >exec ! ; immediate
2561 :
2562 :	jwilke	1.107	: by ( -- do-ghost ) \ Name
2563 :	jwilke	1.103	Ghost >do:ghost @ ;
2564 :	jwilke	1.107
2565 :			: compile: ( do-ghost -- do-ghost [xt] [colon-sys] )
2566 :			\G defines a compile time action for created words
2567 :			\G by this builder
2568 :			:noname ;
2569 :
2570 :			: ;compile ( do-ghost [xt] [colon-sys] -- do-ghost )
2571 :			postpone ; over >comp ! ; immediate
2572 :
2573 :
2574 :	anton	1.1
2575 :			>TARGET
2576 :			\ Variables and Constants 05dec92py
2577 :
2578 :	jwilke	1.52	Build: ( n -- ) ;
2579 :	jwilke	1.103	by: :docon ( target-body-addr -- n ) T @ H ;DO
2580 :	jwilke	1.52	Builder (Constant)
2581 :
2582 :			Build: ( n -- ) T , H ;
2583 :			by (Constant)
2584 :			Builder Constant
2585 :
2586 :			Build: ( n -- ) T A, H ;
2587 :			by (Constant)
2588 :			Builder AConstant
2589 :
2590 :			Build: ( d -- ) T , , H ;
2591 :			DO: ( ghost -- d ) T dup cell+ @ swap @ H ;DO
2592 :			Builder 2Constant
2593 :
2594 :			BuildSmart: ;
2595 :	jwilke	1.103	by: :dovar ( target-body-addr -- addr ) ;DO
2596 :	anton	1.1	Builder Create
2597 :
2598 :	jwilke	1.53	T has? rom H [IF]
2599 :	jwilke	1.103	Build: ( -- ) T here 0 A, H switchram T align here swap ! 0 , H ( switchrom ) ;
2600 :	jwilke	1.52	by (Constant)
2601 :			Builder Variable
2602 :			[ELSE]
2603 :	anton	1.1	Build: T 0 , H ;
2604 :			by Create
2605 :			Builder Variable
2606 :	jwilke	1.52	[THEN]
2607 :	anton	1.1
2608 :	jwilke	1.53	T has? rom H [IF]
2609 :	jwilke	1.103	Build: ( -- ) T here 0 A, H switchram T align here swap ! 0 , 0 , H ( switchrom ) ;
2610 :	pazsan	1.54	by (Constant)
2611 :			Builder 2Variable
2612 :			[ELSE]
2613 :			Build: T 0 , 0 , H ;
2614 :			by Create
2615 :			Builder 2Variable
2616 :			[THEN]
2617 :
2618 :			T has? rom H [IF]
2619 :	jwilke	1.103	Build: ( -- ) T here 0 A, H switchram T align here swap ! 0 A, H ( switchrom ) ;
2620 :	jwilke	1.52	by (Constant)
2621 :			Builder AVariable
2622 :			[ELSE]
2623 :	anton	1.1	Build: T 0 A, H ;
2624 :			by Create
2625 :			Builder AVariable
2626 :	jwilke	1.52	[THEN]
2627 :	anton	1.1
2628 :	pazsan	1.3	\ User variables 04may94py
2629 :
2630 :			>CROSS
2631 :	jwilke	1.78
2632 :	pazsan	1.3	Variable tup 0 tup !
2633 :			Variable tudp 0 tudp !
2634 :	jwilke	1.78
2635 :	pazsan	1.3	: u, ( n -- udp )
2636 :			tup @ tudp @ + T ! H
2637 :	pazsan	1.19	tudp @ dup T cell+ H tudp ! ;
2638 :	jwilke	1.78
2639 :	pazsan	1.3	: au, ( n -- udp )
2640 :			tup @ tudp @ + T A! H
2641 :	pazsan	1.19	tudp @ dup T cell+ H tudp ! ;
2642 :	jwilke	1.78
2643 :	pazsan	1.3	>TARGET
2644 :
2645 :	jwilke	1.78	Build: 0 u, X , ;
2646 :			by: :douser ( ghost -- up-addr ) X @ tup @ + ;DO
2647 :	anton	1.1	Builder User
2648 :
2649 :	jwilke	1.78	Build: 0 u, X , 0 u, drop ;
2650 :	pazsan	1.3	by User
2651 :	anton	1.1	Builder 2User
2652 :
2653 :	jwilke	1.78	Build: 0 au, X , ;
2654 :	pazsan	1.3	by User
2655 :	anton	1.1	Builder AUser
2656 :
2657 :	jwilke	1.52	BuildSmart: T , H ;
2658 :	pazsan	1.44	by (Constant)
2659 :	anton	1.1	Builder Value
2660 :
2661 :	jwilke	1.52	BuildSmart: T A, H ;
2662 :	pazsan	1.44	by (Constant)
2663 :	pazsan	1.32	Builder AValue
2664 :
2665 :	jwilke	1.103	Defer texecute
2666 :
2667 :	jwilke	1.52	BuildSmart: ( -- ) [T'] noop T A, H ;
2668 :	jwilke	1.103	by: :dodefer ( ghost -- ) X @ texecute ;DO
2669 :	anton	1.1	Builder Defer
2670 :	pazsan	1.37
2671 :	jwilke	1.78	Build: ( inter comp -- ) swap T immediate A, A, H ;
2672 :	pazsan	1.37	DO: ( ghost -- ) ABORT" CROSS: Don't execute" ;DO
2673 :	anton	1.38	Builder interpret/compile:
2674 :	pazsan	1.24
2675 :			\ Sturctures 23feb95py
2676 :
2677 :			>CROSS
2678 :			: nalign ( addr1 n -- addr2 )
2679 :			\ addr2 is the aligned version of addr1 wrt the alignment size n
2680 :			1- tuck + swap invert and ;
2681 :			>TARGET
2682 :
2683 :	pazsan	1.44	Build: ;
2684 :			by: :dofield T @ H + ;DO
2685 :			Builder (Field)
2686 :
2687 :	anton	1.51	Build: ( align1 offset1 align size "name" -- align2 offset2 )
2688 :			rot dup T , H ( align1 align size offset1 )
2689 :			+ >r nalign r> ;
2690 :	pazsan	1.44	by (Field)
2691 :	pazsan	1.24	Builder Field
2692 :
2693 :	anton	1.51	: struct T 1 chars 0 H ;
2694 :	pazsan	1.24	: end-struct T 2Constant H ;
2695 :
2696 :	jwilke	1.52	: cell% ( n -- size align )
2697 :	anton	1.51	T 1 cells H dup ;
2698 :	pazsan	1.88
2699 :	jwilke	1.105	\ Input-Methods 01py
2700 :	jwilke	1.103
2701 :	pazsan	1.91	Build: ( m v -- m' v ) dup T , cell+ H ;
2702 :	pazsan	1.88	DO: abort" Not in cross mode" ;DO
2703 :			Builder input-method
2704 :
2705 :			Build: ( m v size -- m v' ) over T , H + ;
2706 :			DO: abort" Not in cross mode" ;DO
2707 :			Builder input-var
2708 :	pazsan	1.24
2709 :	jwilke	1.102
2710 :
2711 :	jwilke	1.103
2712 :	jwilke	1.52	\ structural conditionals 17dec92py
2713 :
2714 :			>CROSS
2715 :	jwilke	1.103	: (ncontrols?) ( n -- )
2716 :			\g We expect n open control structures
2717 :			depth over u<=
2718 :			ABORT" CROSS: unstructured, stack underflow"
2719 :			0 ?DO I pick 0=
2720 :			ABORT" CROSS: unstructured"
2721 :			LOOP ; ' (ncontrols?) plugin-of ncontrols?
2722 :
2723 :			\ : ?struc ( flag -- ) ABORT" CROSS: unstructured " ;
2724 :			\ : sys? ( sys -- sys ) dup 0= ?struc ;
2725 :
2726 :	jwilke	1.52	: >mark ( -- sys ) T here ( dup ." M" hex. ) 0 , H ;
2727 :
2728 :	jwilke	1.78	: branchoffset ( src dest -- ) - tchar / ; \ ?? jaw
2729 :	jwilke	1.52
2730 :	jwilke	1.78	: >resolve ( sys -- )
2731 :			X here ( dup ." >" hex. ) over branchoffset swap X ! ;
2732 :	jwilke	1.52
2733 :	jwilke	1.78	: <resolve ( sys -- )
2734 :			X here ( dup ." <" hex. ) branchoffset X , ;
2735 :	jwilke	1.52
2736 :	jwilke	1.78	:noname compile branch X here branchoffset X , ;
2737 :	pazsan	1.54	IS branch, ( target-addr -- )
2738 :	jwilke	1.78	:noname compile ?branch X here branchoffset X , ;
2739 :	pazsan	1.54	IS ?branch, ( target-addr -- )
2740 :			:noname compile branch T here 0 , H ;
2741 :			IS branchmark, ( -- branchtoken )
2742 :			:noname compile ?branch T here 0 , H ;
2743 :			IS ?branchmark, ( -- branchtoken )
2744 :			:noname T here 0 , H ;
2745 :			IS ?domark, ( -- branchtoken )
2746 :	jwilke	1.78	:noname dup X @ ?struc X here over branchoffset swap X ! ;
2747 :	pazsan	1.54	IS branchtoresolve, ( branchtoken -- )
2748 :	jwilke	1.78	:noname branchto, X here ;
2749 :	pazsan	1.54	IS branchtomark, ( -- target-addr )
2750 :	jwilke	1.52
2751 :			>TARGET
2752 :
2753 :			\ Structural Conditionals 12dec92py
2754 :
2755 :	jwilke	1.103	\ CLEANUP Cond: BUT sys? swap ;Cond
2756 :			\ CLEANUP Cond: YET sys? dup ;Cond
2757 :	jwilke	1.52
2758 :			>CROSS
2759 :
2760 :	jwilke	1.78	Variable tleavings 0 tleavings !
2761 :	jwilke	1.52
2762 :	pazsan	1.54	: (done) ( addr -- )
2763 :			tleavings @
2764 :			BEGIN dup
2765 :			WHILE
2766 :			>r dup r@ cell+ @ \ address of branch
2767 :			u> 0= \ lower than DO?
2768 :			WHILE
2769 :			r@ 2 cells + @ \ branch token
2770 :			branchtoresolve,
2771 :			r@ @ r> free throw
2772 :			REPEAT r> THEN
2773 :			tleavings ! drop ;
2774 :
2775 :	jwilke	1.53	>TARGET
2776 :
2777 :	jwilke	1.103	\ What for? ANS? JAW Cond: DONE ( addr -- ) (done) ;Cond
2778 :	jwilke	1.53
2779 :			>CROSS
2780 :	pazsan	1.54	: (leave) ( branchtoken -- )
2781 :	jwilke	1.53	3 cells allocate throw >r
2782 :			T here H r@ cell+ !
2783 :			r@ 2 cells + !
2784 :			tleavings @ r@ !
2785 :			r> tleavings ! ;
2786 :			>TARGET
2787 :
2788 :	jwilke	1.103	: (leave,) ( -- )
2789 :			branchmark, (leave) ; ' (leave,) plugin-of leave,
2790 :
2791 :			: (?leave,) ( -- )
2792 :			compile 0= ?branchmark, (leave) ; ' (?leave,) plugin-of ?leave,
2793 :
2794 :			Cond: LEAVE leave, ;Cond
2795 :			Cond: ?LEAVE ?leave, ;Cond
2796 :	jwilke	1.53
2797 :	pazsan	1.54	>CROSS
2798 :			\ !!JW ToDo : Move to general tools section
2799 :
2800 :			: to1 ( x1 x2 xn n -- addr )
2801 :	jwilke	1.103	\G packs n stack elements in am allocated memory region
2802 :	pazsan	1.54	dup dup 1+ cells allocate throw dup >r swap 1+
2803 :			0 DO tuck ! cell+ LOOP
2804 :			drop r> ;
2805 :	jwilke	1.103
2806 :	pazsan	1.54	: 1to ( addr -- x1 x2 xn )
2807 :			\G unpacks the elements saved by to1
2808 :			dup @ swap over cells + swap
2809 :			0 DO dup @ swap 1 cells - LOOP
2810 :			free throw ;
2811 :
2812 :			: loop] branchto, dup <resolve tcell - (done) ;
2813 :
2814 :			: skiploop] ?dup IF branchto, branchtoresolve, THEN ;
2815 :
2816 :			>TARGET
2817 :
2818 :	jwilke	1.52	\ Structural Conditionals 12dec92py
2819 :
2820 :	jwilke	1.103	: (cs-swap) ( x1 x2 -- x2 x1 )
2821 :			swap ; ' (cs-swap) plugin-of cs-swap
2822 :
2823 :			: (ahead,) branchmark, ; ' (ahead,) plugin-of ahead,
2824 :
2825 :			: (if,) ?branchmark, ; ' (if,) plugin-of if,
2826 :
2827 :			: (then,) branchto, branchtoresolve, ; ' (then,) plugin-of then,
2828 :
2829 :			: (else,) ( ahead ) branchmark,
2830 :			swap
2831 :			( then ) branchto, branchtoresolve, ; ' (else,) plugin-of else,
2832 :
2833 :			: (begin,) branchtomark, ; ' (begin,) plugin-of begin,
2834 :
2835 :			: (while,) ( if ) ?branchmark,
2836 :			swap ; ' (while,) plugin-of while,
2837 :
2838 :			: (again,) branch, ; ' (again,) plugin-of again,
2839 :
2840 :			: (until,) ?branch, ; ' (until,) plugin-of until,
2841 :
2842 :			: (repeat,) ( again ) branch,
2843 :			( then ) branchto, branchtoresolve, ; ' (repeat,) plugin-of repeat,
2844 :
2845 :			: (case,) ( -- n )
2846 :			0 ; ' (case,) plugin-of case,
2847 :
2848 :			: (of,) ( n -- x1 n )
2849 :			1+ >r
2850 :			compile over compile =
2851 :			if, compile drop r> ; ' (of,) plugin-of of,
2852 :
2853 :			: (endof,) ( x1 n -- x2 n )
2854 :			>r 1 ncontrols? else, r> ; ' (endof,) plugin-of endof,
2855 :
2856 :			: (endcase,) ( x1 .. xn n -- )
2857 :			compile drop 0 ?DO 1 ncontrols? then, LOOP ; ' (endcase,) plugin-of endcase,
2858 :
2859 :	jwilke	1.53	>TARGET
2860 :	jwilke	1.103	Cond: AHEAD ahead, ;Cond
2861 :			Cond: IF if, ;Cond
2862 :			Cond: THEN 1 ncontrols? then, ;Cond
2863 :			Cond: ENDIF 1 ncontrols? then, ;Cond
2864 :			Cond: ELSE 1 ncontrols? else, ;Cond
2865 :
2866 :			Cond: BEGIN begin, ;Cond
2867 :			Cond: WHILE 1 ncontrols? while, ;Cond
2868 :			Cond: AGAIN 1 ncontrols? again, ;Cond
2869 :			Cond: UNTIL 1 ncontrols? until, ;Cond
2870 :			Cond: REPEAT 2 ncontrols? repeat, ;Cond
2871 :
2872 :			Cond: CASE case, ;Cond
2873 :			Cond: OF of, ;Cond
2874 :			Cond: ENDOF endof, ;Cond
2875 :			Cond: ENDCASE endcase, ;Cond
2876 :	anton	1.1
2877 :			\ Structural Conditionals 12dec92py
2878 :
2879 :	jwilke	1.103	: (do,) ( -- target-addr )
2880 :			\ ?? i think 0 is too much! jaw
2881 :	pazsan	1.54	0 compile (do)
2882 :	jwilke	1.103	branchtomark, 2 to1 ; ' (do,) plugin-of do,
2883 :	pazsan	1.54
2884 :	jwilke	1.103	\ alternative for if no ?do
2885 :			\ : (do,)
2886 :	pazsan	1.54	\ compile 2dup compile = compile IF
2887 :			\ compile 2drop compile ELSE
2888 :			\ compile (do) branchtomark, 2 to1 ;
2889 :
2890 :	jwilke	1.103	: (?do,) ( -- target-addr )
2891 :	pazsan	1.54	0 compile (?do) ?domark, (leave)
2892 :	jwilke	1.103	branchtomark, 2 to1 ; ' (?do,) plugin-of ?do,
2893 :
2894 :			: (for,) ( -- target-addr )
2895 :			compile (for) branchtomark, ; ' (for,) plugin-of for,
2896 :
2897 :			: (loop,) ( target-addr -- )
2898 :			1to compile (loop) loop]
2899 :			compile unloop skiploop] ; ' (loop,) plugin-of loop,
2900 :
2901 :			: (+loop,) ( target-addr -- )
2902 :			1to compile (+loop) loop]
2903 :			compile unloop skiploop] ; ' (+loop,) plugin-of +loop,
2904 :
2905 :			: (next,)
2906 :			compile (next) loop] compile unloop ; ' (next,) plugin-of next,
2907 :
2908 :			Cond: DO do, ;Cond
2909 :			Cond: ?DO ?do, ;Cond
2910 :			Cond: FOR for, ;Cond
2911 :
2912 :			Cond: LOOP 1 ncontrols? loop, ;Cond
2913 :			Cond: +LOOP 1 ncontrols? +loop, ;Cond
2914 :			Cond: NEXT 1 ncontrols? next, ;Cond
2915 :	jwilke	1.52
2916 :	anton	1.1	\ String words 23feb93py
2917 :
2918 :	jwilke	1.103	: ," [char] " parse ht-string, X align ;
2919 :	anton	1.1
2920 :	jwilke	1.103	Cond: ." compile (.") T ," H ;Cond
2921 :			Cond: S" compile (S") T ," H ;Cond
2922 :			Cond: C" compile (C") T ," H ;Cond
2923 :			Cond: ABORT" compile (ABORT") T ," H ;Cond
2924 :	anton	1.1
2925 :			Cond: IS T ' >body H compile ALiteral compile ! ;Cond
2926 :	pazsan	1.66	: IS T >address ' >body ! H ;
2927 :	pazsan	1.9	Cond: TO T ' >body H compile ALiteral compile ! ;Cond
2928 :			: TO T ' >body ! H ;
2929 :	anton	1.1
2930 :	jwilke	1.52	Cond: defers T ' >body @ compile, H ;Cond
2931 :
2932 :	anton	1.1	\ LINKED ERR" ENV" 2ENV" 18may93jaw
2933 :
2934 :			\ linked list primitive
2935 :	jwilke	1.79	: linked X here over X @ X A, swap X ! ;
2936 :	jwilke	1.52	: chained T linked A, H ;
2937 :	anton	1.1
2938 :			: err" s" ErrLink linked" evaluate T , H
2939 :	jwilke	1.103	[char] " parse ht-string, X align ;
2940 :	anton	1.1
2941 :			: env" [char] " parse s" EnvLink linked" evaluate
2942 :	jwilke	1.103	ht-string, X align X , ;
2943 :	anton	1.1
2944 :			: 2env" [char] " parse s" EnvLink linked" evaluate
2945 :	jwilke	1.103	here >r ht-string, X align X , X ,
2946 :	anton	1.1	r> dup T c@ H 80 and swap T c! H ;
2947 :
2948 :			\ compile must be last 22feb93py
2949 :
2950 :	jwilke	1.103	Cond: [compile] ( -- ) \ name
2951 :			\g For immediate words, works even if forward reference
2952 :			bl word gfind 0= ABORT" CROSS: Can't compile"
2953 :			(gexecute) ;Cond
2954 :
2955 :			Cond: postpone ( -- ) \ name
2956 :			bl word gfind 0= ABORT" CROSS: Can't compile"
2957 :			dup >magic @ <fwd> =
2958 :			ABORT" CROSS: Can't postpone on forward declaration"
2959 :			dup >magic @ <imm> =
2960 :			IF (gexecute)
2961 :			ELSE compile (compile) addr, THEN ;Cond
2962 :	pazsan	1.54
2963 :	jwilke	1.77	\ save-cross 17mar93py
2964 :
2965 :			hex
2966 :
2967 :			>CROSS
2968 :			Create magic s" Gforth2x" here over allot swap move
2969 :
2970 :			bigendian 1+ \ strangely, in magic big=0, little=1
2971 :			tcell 1 = 0 and or
2972 :			tcell 2 = 2 and or
2973 :			tcell 4 = 4 and or
2974 :			tcell 8 = 6 and or
2975 :			tchar 1 = 00 and or
2976 :			tchar 2 = 28 and or
2977 :			tchar 4 = 50 and or
2978 :			tchar 8 = 78 and or
2979 :			magic 7 + c!
2980 :
2981 :			: save-cross ( "image-name" "binary-name" -- )
2982 :			bl parse ." Saving to " 2dup type cr
2983 :			w/o bin create-file throw >r
2984 :			TNIL IF
2985 :	anton	1.80	s" #! " r@ write-file throw
2986 :			bl parse r@ write-file throw
2987 :			s" --image-file" r@ write-file throw
2988 :	jwilke	1.77	#lf r@ emit-file throw
2989 :			r@ dup file-position throw drop 8 mod 8 swap ( file-id limit index )
2990 :			?do
2991 :			bl over emit-file throw
2992 :			loop
2993 :			drop
2994 :			magic 8 r@ write-file throw \ write magic
2995 :			ELSE
2996 :			bl parse 2drop
2997 :			THEN
2998 :			image @ there
2999 :			r@ write-file throw \ write image
3000 :			TNIL IF
3001 :			bit$ @ there 1- tcell>bit rshift 1+
3002 :			r@ write-file throw \ write tags
3003 :			THEN
3004 :			r> close-file throw ;
3005 :
3006 :			: save-region ( addr len -- )
3007 :			bl parse w/o bin create-file throw >r
3008 :			swap >image swap r@ write-file throw
3009 :			r> close-file throw ;
3010 :
3011 :	jwilke	1.103	1 [IF]
3012 :
3013 :			Variable name-ptr
3014 :			Create name-buf 200 chars allot
3015 :			: init-name-buf name-buf name-ptr ! ;
3016 :			: nb, name-ptr @ c! 1 chars name-ptr +! ;
3017 :			: $nb, ( adr len -- ) bounds ?DO I c@ nb, LOOP ;
3018 :			: @nb name-ptr @ name-buf tuck - ;
3019 :
3020 :			\ stores a usefull string representation of the character
3021 :			\ in the name buffer
3022 :			: name-char, ( c -- )
3023 :			dup 'a 'z 1+ within IF nb, EXIT THEN
3024 :			dup 'A 'Z 1+ within IF $20 + nb, EXIT THEN
3025 :			dup '0 '9 1+ within IF nb, EXIT THEN
3026 :			CASE '+ OF s" _PLUS" $nb, ENDOF
3027 :			'- OF s" _MINUS" $nb, ENDOF
3028 :			'* OF s" _STAR" $nb, ENDOF
3029 :			'/ OF s" _SLASH" $nb, ENDOF
3030 :			'' OF s" _TICK" $nb, ENDOF
3031 :			'( OF s" _OPAREN" $nb, ENDOF
3032 :			') OF s" _CPAREN" $nb, ENDOF
3033 :			'[ OF s" _OBRACKET" $nb, ENDOF
3034 :			'] OF s" _CBRACKET" $nb, ENDOF
3035 :			'! OF s" _STORE" $nb, ENDOF
3036 :			'@ OF s" _FETCH" $nb, ENDOF
3037 :			'> OF s" _GREATER" $nb, ENDOF
3038 :			'< OF s" _LESS" $nb, ENDOF
3039 :			'= OF s" _EQUAL" $nb, ENDOF
3040 :			'# OF s" _HASH" $nb, ENDOF
3041 :			'? OF s" _QUEST" $nb, ENDOF
3042 :			': OF s" _COL" $nb, ENDOF
3043 :			'; OF s" _SEMICOL" $nb, ENDOF
3044 :			', OF s" _COMMA" $nb, ENDOF
3045 :			'. OF s" _DOT" $nb, ENDOF
3046 :			'" OF s" _DQUOT" $nb, ENDOF
3047 :			dup
3048 :			base @ >r hex s>d <# #s 'X hold '_ hold #> $nb, r> base !
3049 :			ENDCASE ;
3050 :
3051 :			: label-from-ghostname ( ghost -- addr len )
3052 :			dup >ghostname init-name-buf 'L nb, bounds
3053 :			?DO I c@ name-char, LOOP
3054 :			\ we add the address to a name to make in unique
3055 :			\ because one name may appear more then once
3056 :			\ there are names (e.g. boot) that may be reference from other
3057 :			\ assembler source files, so we declare them as unique
3058 :			\ and don't add the address suffix
3059 :			dup >ghost-flags @ <unique> and 0=
3060 :			IF s" __" $nb, >link @ base @ >r hex 0 <# #s 'L hold #> r> base ! $nb,
3061 :			ELSE drop
3062 :			THEN
3063 :			@nb ;
3064 :
3065 :			: label-from-ghostnameXX ( ghost -- addr len )
3066 :			\ same as (label-from-ghostname) but caches generated names
3067 :			dup >asm-name @ ?dup IF nip count EXIT THEN
3068 :			\ dup >r (label-from-ghostname) 2dup
3069 :			align here >r string, align
3070 :			r> r> >asm-name ! ;
3071 :
3072 :			: primghostdiscover ( xt -- ghost true \| xt false )
3073 :			dup 0= IF false EXIT THEN
3074 :			>r last-prim-ghost
3075 :			BEGIN @ dup
3076 :			WHILE dup >asm-dummyaddr @ r@ =
3077 :			IF rdrop true EXIT THEN
3078 :			REPEAT
3079 :			drop r> false ;
3080 :
3081 :			: gdiscover2 ( xt -- ghost true \| xt false )
3082 :			dup taddr>region 0= IF false EXIT THEN
3083 :			dup (>regiontype) @ dup 0= IF drop false EXIT THEN
3084 :			addr-xt-ghost @ dup 0= IF drop false EXIT THEN
3085 :			nip true ;
3086 :			\ dup >ghost-name @ IF nip true ELSE drop false THEN ;
3087 :
3088 :			\ generates a label name for the target address
3089 :			: generate-label-name ( taddr -- addr len )
3090 :			gdiscover2
3091 :			IF dup >magic @ <do:> =
3092 :			IF >asm-name @ count EXIT THEN
3093 :			label-from-ghostname
3094 :			ELSE
3095 :			primghostdiscover
3096 :			IF >asm-name @ count
3097 :			ELSE base @ >r hex 0 <# #s 'L hold #> r> base !
3098 :			THEN
3099 :			THEN ;
3100 :
3101 :			Variable outfile-fd
3102 :
3103 :			: $out ( adr len -- ) outfile-fd @ write-file throw ;
3104 :			: nlout newline $out ;
3105 :			: .ux ( n -- )
3106 :			base @ hex swap 0 <# #S #> $out base ! ;
3107 :
3108 :			: save-asm-region-part-aligned ( taddr len -- 'taddr 'len )
3109 :			dup cell/ 0
3110 :			?DO nlout s" .word " $out over @relbit
3111 :			IF over X @ generate-label-name $out
3112 :			ELSE over X @ s" 0x0" $out .ux
3113 :			THEN
3114 :			tcell /string
3115 :			LOOP ;
3116 :
3117 :			: print-bytes ( taddr len n -- taddr' len' )
3118 :			over min dup 0>
3119 :			IF nlout s" .byte " $out 0
3120 :			?DO I 0> IF s" , " $out THEN
3121 :			over X c@ s" 0x0" $out .ux 1 /string
3122 :			LOOP
3123 :			THEN ;
3124 :
3125 :			: save-asm-region-part ( addr len -- )
3126 :			over dup X aligned swap - ?dup
3127 :			IF print-bytes THEN
3128 :			save-asm-region-part-aligned
3129 :			dup dup X aligned swap - ?dup
3130 :			IF 2 pick @relbit ABORT" relocated field splitted"
3131 :			print-bytes
3132 :			THEN
3133 :			2drop ;
3134 :
3135 :			: print-label ( taddr -- )
3136 :			nlout generate-label-name $out s" :" $out ;
3137 :
3138 :			: snl-calc ( taddr taddr2 -- )
3139 :			tuck over - ;
3140 :
3141 :			: skip-nolables ( taddr -- taddr2 taddr len )
3142 :			\G skips memory region where no lables are defined
3143 :			\G starting from taddr+1
3144 :			\G Labels will be introduced for each reference mark
3145 :			\G in addr-refs.
3146 :			\G This word deals with lables at byte addresses as well.
3147 :			\G The main idea is to have an intro part which
3148 :			\G skips until the next cell boundary, the middle part
3149 :			\G which skips whole cells very efficiently and the third
3150 :			\G part which skips the bytes to the label in a cell
3151 :			dup 1+ dup (>regiontype)
3152 :			( S taddr taddr-realstart type-addr )
3153 :			dup @ dup IF addr-refs @ THEN
3154 :			swap >r
3155 :			over align+ tuck tcell swap - rshift swap 0
3156 :			DO dup 1 and
3157 :			IF drop rdrop snl-calc UNLOOP EXIT THEN
3158 :			2/ swap 1+ swap
3159 :			LOOP
3160 :			drop r> cell+
3161 :			( S .. taddr2 type-addr ) dup
3162 :			BEGIN dup @ dup IF addr-refs @ THEN 0= WHILE cell+ REPEAT
3163 :			dup >r swap - 1 cells / tcell * + r>
3164 :			( S .. taddr2+skiplencells type-addr )
3165 :			@ addr-refs @ 1 tcell lshift or
3166 :			BEGIN dup 1 and 0= WHILE swap 1+ swap 2/ REPEAT drop
3167 :			( S .. taddr2+skiplencells+skiplenbytes )
3168 :			snl-calc ;
3169 :
3170 :			: insert-label ( taddr -- )
3171 :			dup 0= IF drop EXIT THEN
3172 :			\ ignore everything which points outside our memory regions
3173 :			\ maybe a primitive pointer or whatever
3174 :			dup taddr>region 0= IF drop EXIT THEN
3175 :			dup >r (>regiontype) define-addr-struct addr-refs dup @
3176 :			r> tcell 1- and 1 swap lshift or swap ! ;
3177 :
3178 :			\ this generates a sorted list of addresses which must be labels
3179 :			\ it scans therefore a whole region
3180 :			: generate-label-list-region ( taddr len -- )
3181 :			BEGIN over @relbit IF over X @ insert-label THEN
3182 :			tcell /string dup 0<
3183 :			UNTIL 2drop ;
3184 :
3185 :			: generate-label-list ( -- )
3186 :			region-link
3187 :			BEGIN @ dup WHILE
3188 :			dup 0 >rlink - extent
3189 :			?dup IF generate-label-list-region ELSE drop THEN
3190 :			REPEAT drop ;
3191 :
3192 :			: create-outfile ( addr len -- )
3193 :			w/o bin create-file throw outfile-fd ! ;
3194 :
3195 :			: close-outfile ( -- )
3196 :			outfile-fd @ close-file throw ;
3197 :
3198 :			: (save-asm-region) ( region -- )
3199 :			\ ." label list..."
3200 :			generate-label-list
3201 :			\ ." ok!" cr
3202 :			extent ( S taddr len )
3203 :			over insert-label
3204 :			2dup + dup insert-label >r ( R end-label )
3205 :			( S taddr len ) drop
3206 :			BEGIN
3207 :			dup print-label
3208 :			dup r@ <> WHILE
3209 :			skip-nolables save-asm-region-part
3210 :			REPEAT drop rdrop ;
3211 :
3212 :			: lineout ( addr len -- )
3213 :			outfile-fd @ write-line throw ;
3214 :
3215 :			: save-asm-region ( region adr len -- )
3216 :			create-outfile (save-asm-region) close-outfile ;
3217 :
3218 :			[THEN]
3219 :
3220 :	pazsan	1.54	\ \ minimal definitions
3221 :
3222 :	jwilke	1.77	>MINIMAL also minimal
3223 :
3224 :	anton	1.1	\ Usefull words 13feb93py
3225 :
3226 :			: KB 400 * ;
3227 :
3228 :	pazsan	1.54	\ \ [IF] [ELSE] [THEN] ... 14sep97jaw
3229 :
3230 :			\ it is useful to define our own structures and not to rely
3231 :			\ on the words in the compiler
3232 :			\ The words in the compiler might be defined with vocabularies
3233 :			\ this doesn't work with our self-made compile-loop
3234 :
3235 :			Create parsed 20 chars allot \ store word we parsed
3236 :
3237 :			: upcase
3238 :			parsed count bounds
3239 :			?DO I c@ toupper I c! LOOP ;
3240 :
3241 :			: [ELSE]
3242 :			1 BEGIN
3243 :			BEGIN bl word count dup WHILE
3244 :	jwilke	1.77	comment? 20 umin parsed place upcase parsed count
3245 :	pazsan	1.54	2dup s" [IF]" compare 0= >r
3246 :			2dup s" [IFUNDEF]" compare 0= >r
3247 :			2dup s" [IFDEF]" compare 0= r> or r> or
3248 :			IF 2drop 1+
3249 :			ELSE 2dup s" [ELSE]" compare 0=
3250 :			IF 2drop 1- dup
3251 :			IF 1+
3252 :			THEN
3253 :			ELSE
3254 :			2dup s" [ENDIF]" compare 0= >r
3255 :			s" [THEN]" compare 0= r> or
3256 :			IF 1- THEN
3257 :			THEN
3258 :			THEN
3259 :			?dup 0= ?EXIT
3260 :			REPEAT
3261 :			2drop refill 0=
3262 :			UNTIL drop ; immediate
3263 :
3264 :			: [THEN] ( -- ) ; immediate
3265 :
3266 :			: [ENDIF] ( -- ) ; immediate
3267 :
3268 :			: [IF] ( flag -- )
3269 :			0= IF postpone [ELSE] THEN ; immediate
3270 :
3271 :			Cond: [IF] postpone [IF] ;Cond
3272 :			Cond: [THEN] postpone [THEN] ;Cond
3273 :			Cond: [ELSE] postpone [ELSE] ;Cond
3274 :
3275 :	anton	1.1	\ define new [IFDEF] and [IFUNDEF] 20may93jaw
3276 :
3277 :	jwilke	1.77	: defined? tdefined? ;
3278 :	pazsan	1.44	: needed? needed? ;
3279 :			: doer? doer? ;
3280 :	anton	1.1
3281 :	jwilke	1.52	\ we want to use IFDEF on compiler directives (e.g. E?) in the source, too
3282 :
3283 :			: directive?
3284 :	jwilke	1.77	bl word count [ ' target >wordlist ] literal search-wordlist
3285 :	jwilke	1.52	dup IF nip THEN ;
3286 :
3287 :			: [IFDEF] >in @ directive? swap >in !
3288 :	jwilke	1.77	0= IF tdefined? ELSE name 2drop true THEN
3289 :	jwilke	1.52	postpone [IF] ;
3290 :
3291 :	jwilke	1.77	: [IFUNDEF] tdefined? 0= postpone [IF] ;
3292 :	anton	1.1
3293 :	pazsan	1.54	Cond: [IFDEF] postpone [IFDEF] ;Cond
3294 :
3295 :			Cond: [IFUNDEF] postpone [IFUNDEF] ;Cond
3296 :
3297 :	anton	1.1	\ C: \- \+ Conditional Compiling 09jun93jaw
3298 :
3299 :	jwilke	1.77	: C: >in @ tdefined? 0=
3300 :			IF >in ! X :
3301 :	anton	1.1	ELSE drop
3302 :			BEGIN bl word dup c@
3303 :			IF count comment? s" ;" compare 0= ?EXIT
3304 :			ELSE refill 0= ABORT" CROSS: Out of Input while C:"
3305 :			THEN
3306 :			AGAIN
3307 :			THEN ;
3308 :
3309 :	jwilke	1.74	: d? d? ;
3310 :
3311 :			\G doesn't skip line when debug switch is on
3312 :			: \D D? 0= IF postpone \ THEN ;
3313 :	jwilke	1.52
3314 :	anton	1.48	\G interprets the line if word is not defined
3315 :	jwilke	1.77	: \- tdefined? IF postpone \ THEN ;
3316 :	anton	1.48
3317 :			\G interprets the line if word is defined
3318 :	jwilke	1.77	: \+ tdefined? 0= IF postpone \ THEN ;
3319 :	anton	1.1
3320 :	anton	1.48	Cond: \- \- ;Cond
3321 :			Cond: \+ \+ ;Cond
3322 :	jwilke	1.52	Cond: \D \D ;Cond
3323 :	anton	1.48
3324 :			: ?? bl word find IF execute ELSE drop 0 THEN ;
3325 :
3326 :			: needed:
3327 :			\G defines ghost for words that we want to be compiled
3328 :	jwilke	1.103	BEGIN >in @ bl word c@ WHILE >in ! Ghost drop REPEAT drop ;
3329 :	anton	1.48
3330 :	anton	1.1	\ words that should be in minimal
3331 :	jwilke	1.52
3332 :			create s-buffer 50 chars allot
3333 :
3334 :	jwilke	1.77	bigendian Constant bigendian
3335 :	anton	1.1
3336 :	jwilke	1.52	: here there ;
3337 :	jwilke	1.67	: equ constant ;
3338 :			: mark there constant ;
3339 :	pazsan	1.54
3340 :			\ compiler directives
3341 :	jwilke	1.52	: >ram >ram ;
3342 :			: >rom >rom ;
3343 :			: >auto >auto ;
3344 :			: >tempdp >tempdp ;
3345 :			: tempdp> tempdp> ;
3346 :			: const constflag on ;
3347 :	jwilke	1.103
3348 :			: Redefinitions-start
3349 :			\G Starts a redefinition section. Warnings are disabled and
3350 :			\G existing ghosts are reused. This is used in the kernel
3351 :			\G where ( and \ and the like are redefined
3352 :			twarnings off warnings off reuse-ghosts on ;
3353 :
3354 :			: Redefinitions-end
3355 :			\G Ends a redefinition section. Warnings are enabled again.
3356 :			twarnings on warnings on reuse-ghosts off ;
3357 :
3358 :			: warnings name 3 =
3359 :			IF twarnings off warnings off ELSE twarnings on warnings on THEN drop ;
3360 :	jwilke	1.102
3361 :	anton	1.60	: \| ;
3362 :			\ : \| NoHeaderFlag on ; \ This is broken (damages the last word)
3363 :	jwilke	1.52
3364 :	anton	1.48	: save-cross save-cross ;
3365 :	jwilke	1.52	: save-region save-region ;
3366 :			: tdump swap >image swap dump ;
3367 :
3368 :	anton	1.48	also forth
3369 :	jwilke	1.52	[IFDEF] Label : Label defempty? Label ; [THEN]
3370 :			[IFDEF] start-macros : start-macros defempty? start-macros ; [THEN]
3371 :	jwilke	1.77	\ [IFDEF] builttag : builttag builttag ; [THEN]
3372 :	anton	1.48	previous
3373 :
3374 :	jwilke	1.52	: s" [char] " parse s-buffer place s-buffer count ; \ for environment?
3375 :	pazsan	1.43	: + + ;
3376 :	jwilke	1.52	: 1+ 1 + ;
3377 :			: 2+ 2 + ;
3378 :	pazsan	1.43	: 1- 1- ;
3379 :			: - - ;
3380 :	jwilke	1.52	: and and ;
3381 :			: or or ;
3382 :	pazsan	1.43	: 2* 2* ;
3383 :			: * * ;
3384 :			: / / ;
3385 :			: dup dup ;
3386 :			: over over ;
3387 :			: swap swap ;
3388 :			: rot rot ;
3389 :			: drop drop ;
3390 :			: = = ;
3391 :			: 0= 0= ;
3392 :			: lshift lshift ;
3393 :			: 2/ 2/ ;
3394 :	jwilke	1.103	\ : . . ;
3395 :	anton	1.1
3396 :	jwilke	1.79	: all-words ['] forced? IS skip? ;
3397 :	pazsan	1.43	: needed-words ['] needed? IS skip? ;
3398 :	jwilke	1.75	: undef-words ['] defined2? IS skip? ;
3399 :			: skipdef skipdef ;
3400 :	anton	1.1
3401 :	pazsan	1.40	: \ postpone \ ; immediate
3402 :	pazsan	1.47	: \G T-\G ; immediate
3403 :	pazsan	1.40	: ( postpone ( ; immediate
3404 :	anton	1.1	: include bl word count included ;
3405 :	jwilke	1.103	: included swap >image swap included ;
3406 :	jwilke	1.52	: require require ;
3407 :	jwilke	1.103	: needs require ;
3408 :	anton	1.1	: .( [char] ) parse type ;
3409 :	jwilke	1.52	: ." [char] " parse type ;
3410 :	anton	1.1	: cr cr ;
3411 :
3412 :	jwilke	1.77	: times 0 ?DO dup X c, LOOP drop ; \ used for space table creation
3413 :
3414 :			\ only forth also cross also minimal definitions order
3415 :	anton	1.1
3416 :			\ cross-compiler words
3417 :
3418 :	jwilke	1.103	: decimal decimal [g'] decimal >exec2 @ ?dup IF EXECUTE THEN ;
3419 :			: hex hex [g'] hex >exec2 @ ?dup IF EXECUTE THEN ;
3420 :	anton	1.1
3421 :	jwilke	1.77	\ : tudp X tudp ;
3422 :			\ : tup X tup ;
3423 :
3424 :			: doc-off false to-doc ! ;
3425 :			: doc-on true to-doc ! ;
3426 :	pazsan	1.39
3427 :	jwilke	1.103	: declareunique ( "name" -- )
3428 :			\G Sets the unique flag for a ghost. The assembler output
3429 :			\G generates labels with the ghostname concatenated with the address
3430 :			\G while cross-compiling. The address is concatenated
3431 :			\G because we have double occurences of the same name.
3432 :			\G If we want to reference the labels from the assembler or C
3433 :			\G code we declare them unique, so the address is skipped.
3434 :			Ghost >ghost-flags dup @ <unique> or swap ! ;
3435 :
3436 :			\ [IFDEF] dbg : dbg dbg ; [THEN]
3437 :	pazsan	1.39
3438 :	anton	1.1	\ for debugging...
3439 :	jwilke	1.103	\ : dbg dbg ;
3440 :			: horder order ;
3441 :			: hwords words ;
3442 :			\ : words also ghosts
3443 :			\ words previous ;
3444 :	jwilke	1.105	: .s .s ;
3445 :	anton	1.1	: bye bye ;
3446 :	pazsan	1.99
3447 :	jwilke	1.103	\ dummy
3448 :			: group 0 word drop ;
3449 :
3450 :	anton	1.1	\ turnkey direction
3451 :			: H forth ; immediate
3452 :			: T minimal ; immediate
3453 :			: G ghosts ; immediate
3454 :
3455 :
3456 :			\ these ones are pefered:
3457 :
3458 :	jwilke	1.74	: unlock previous forth also cross ;
3459 :	jwilke	1.52
3460 :	jwilke	1.77	\ also minimal
3461 :	jwilke	1.103	>cross
3462 :
3463 :			: turnkey
3464 :			ghosts-wordlist 1 set-order
3465 :			also target definitions
3466 :			also Minimal also ;
3467 :
3468 :			>minimal
3469 :
3470 :			: [[+++
3471 :			turnkey unlock ;
3472 :	anton	1.1
3473 :			unlock definitions also minimal
3474 :	jwilke	1.77
3475 :	jwilke	1.103	: lock turnkey ;
3476 :
3477 :			Defer +++]]-hook
3478 :			: +++]] +++]]-hook lock ;
3479 :
3480 :			LOCK
3481 :	jwilke	1.77	\ load cross compiler extension defined in mach file
3482 :
3483 :			UNLOCK >CROSS
3484 :
3485 :			[IFDEF] extend-cross extend-cross [THEN]
3486 :
3487 :			LOCK
3488 :	jwilke	1.103
3489 :
3490 :

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