[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	1.115	\ this provides assert( and struct stuff
206 :			\GFORTH [IFUNDEF] assert1(
207 :			\GFORTH also forth definitions require assert.fs previous
208 :			\GFORTH [THEN]
209 :
210 :			>CROSS
211 :
212 :	jwilke	1.52	hex \ the defualt base for the cross-compiler is hex !!
213 :	jwilke	1.78	\ Warnings off
214 :	jwilke	1.52
215 :			\ words that are generaly useful
216 :
217 :	pazsan	1.59	: KB 400 * ;
218 :	jwilke	1.52	: >wordlist ( vocabulary-xt -- wordlist-struct )
219 :			also execute get-order swap >r 1- set-order r> ;
220 :
221 :			: umax 2dup u< IF swap THEN drop ;
222 :			: umin 2dup u> IF swap THEN drop ;
223 :	anton	1.1
224 :	pazsan	1.23	: string, ( c-addr u -- )
225 :			\ puts down string as cstring
226 :			dup c, here swap chars dup allot move ;
227 :	pazsan	1.5
228 :	jwilke	1.77	: ," [char] " parse string, ;
229 :
230 :	jwilke	1.52	: SetValue ( n -- <name> )
231 :	pazsan	1.54	\G Same behaviour as "Value" if the <name> is not defined
232 :			\G Same behaviour as "to" if <name> is defined
233 :	jwilke	1.52	\G SetValue searches in the current vocabulary
234 :	jwilke	1.68	save-input bl word >r restore-input throw r> count
235 :			get-current search-wordlist
236 :			IF drop >r
237 :			\ we have to set current to be topmost context wordlist
238 :			get-order get-order get-current swap 1+ set-order
239 :			r> ['] to execute
240 :	jwilke	1.74	set-order
241 :	jwilke	1.68	ELSE Value THEN ;
242 :	jwilke	1.52
243 :			: DefaultValue ( n -- <name> )
244 :	pazsan	1.54	\G Same behaviour as "Value" if the <name> is not defined
245 :			\G DefaultValue searches in the current vocabulary
246 :	jwilke	1.52	save-input bl word >r restore-input throw r> count
247 :			get-current search-wordlist
248 :	pazsan	1.56	IF bl word drop 2drop ELSE Value THEN ;
249 :	anton	1.1
250 :			hex
251 :
252 :	jwilke	1.52	\ 1 Constant Cross-Flag \ to check whether assembler compiler plug-ins are
253 :			\ for cross-compiling
254 :			\ No! we use "[IFUNDEF]" there to find out whether we are target compiling!!!
255 :
256 :			: comment? ( c-addr u -- c-addr u )
257 :			2dup s" (" compare 0=
258 :			IF postpone (
259 :			ELSE 2dup s" \" compare 0= IF postpone \ THEN
260 :			THEN ;
261 :
262 :	jwilke	1.105	: X bl word count [ ' target >wordlist ] Literal search-wordlist
263 :			IF state @ IF compile,
264 :			ELSE execute THEN
265 :			ELSE -1 ABORT" Cross: access method not supported!"
266 :			THEN ; immediate
267 :
268 :	jwilke	1.52	\ Begin CROSS COMPILER:
269 :
270 :	jwilke	1.74	\ debugging
271 :	jwilke	1.52
272 :	jwilke	1.74	0 [IF]
273 :
274 :			This implements debugflags for the cross compiler and the compiled
275 :			images. It works identical to the has-flags in the environment.
276 :			The debugflags are defined in a vocabluary. If the word exists and
277 :			its value is true, the flag is switched on.
278 :
279 :			[THEN]
280 :
281 :	jwilke	1.77	>CROSS
282 :
283 :	jwilke	1.74	Vocabulary debugflags \ debug flags for cross
284 :			also debugflags get-order over
285 :			Constant debugflags-wl
286 :			set-order previous
287 :
288 :			: DebugFlag
289 :			get-current >r debugflags-wl set-current
290 :			SetValue
291 :			r> set-current ;
292 :
293 :			: Debug? ( adr u -- flag )
294 :			\G return true if debug flag is defined or switched on
295 :			debugflags-wl search-wordlist
296 :			IF EXECUTE
297 :			ELSE false THEN ;
298 :
299 :			: D? ( <name> -- flag )
300 :			\G return true if debug flag is defined or switched on
301 :			\G while compiling we do not return the current value but
302 :			bl word count debug? ;
303 :
304 :			: [d?]
305 :			\G compile the value-xt so the debug flag can be switched
306 :			\G the flag must exist!
307 :			bl word count debugflags-wl search-wordlist
308 :			IF compile,
309 :			ELSE -1 ABORT" unknown debug flag"
310 :			\ POSTPONE false
311 :			THEN ; immediate
312 :	pazsan	1.54
313 :	jwilke	1.77	\ \ -------------------- source file
314 :
315 :			decimal
316 :
317 :			Variable cross-file-list
318 :			0 cross-file-list !
319 :			Variable target-file-list
320 :			0 target-file-list !
321 :			Variable host-file-list
322 :			0 host-file-list !
323 :
324 :			cross-file-list Value file-list
325 :			0 Value source-desc
326 :
327 :			\ file loading
328 :
329 :			: >fl-id 1 cells + ;
330 :			: >fl-name 2 cells + ;
331 :
332 :			Variable filelist 0 filelist !
333 :			Create NoFile ," #load-file#"
334 :
335 :			: loadfile ( -- adr )
336 :			source-desc ?dup IF >fl-name ELSE NoFile THEN ;
337 :
338 :			: sourcefilename ( -- adr len )
339 :			loadfile count ;
340 :
341 :			\ANSI : sourceline# 0 ;
342 :
343 :			\ \ -------------------- path handling from kernel/paths.fs
344 :
345 :			\ paths.fs path file handling 03may97jaw
346 :
347 :			\ -Changing the search-path:
348 :			\ fpath+ <path> adds a directory to the searchpath
349 :			\ fpath= <path>\|<path> makes complete now searchpath
350 :			\ seperator is \|
351 :			\ .fpath displays the search path
352 :			\ remark I:
353 :			\ a ./ in the beginning of filename is expanded to the directory the
354 :			\ current file comes from. ./ can also be included in the search-path!
355 :			\ ~+/ loads from the current working directory
356 :
357 :			\ remark II:
358 :			\ if there is no sufficient space for the search path increase it!
359 :
360 :
361 :			\ -Creating custom paths:
362 :
363 :			\ It is possible to use the search mechanism on yourself.
364 :
365 :			\ Make a buffer for the path:
366 :			\ create mypath 100 chars , \ maximum length (is checked)
367 :			\ 0 , \ real len
368 :			\ 100 chars allot \ space for path
369 :			\ use the same functions as above with:
370 :			\ mypath path+
371 :			\ mypath path=
372 :			\ mypath .path
373 :
374 :			\ do a open with the search path:
375 :			\ open-path-file ( adr len path -- fd adr len ior )
376 :			\ the file is opened read-only; if the file is not found an error is generated
377 :
378 :			\ questions to: wilke@jwdt.com
379 :
380 :			[IFUNDEF] +place
381 :			: +place ( adr len adr )
382 :			2dup >r >r
383 :			dup c@ char+ + swap move
384 :			r> r> dup c@ rot + swap c! ;
385 :			[THEN]
386 :
387 :			[IFUNDEF] place
388 :			: place ( c-addr1 u c-addr2 )
389 :			2dup c! char+ swap move ;
390 :			[THEN]
391 :
392 :			\ if we have path handling, use this and the setup of it
393 :			[IFUNDEF] open-fpath-file
394 :
395 :			create sourcepath 1024 chars , 0 , 1024 chars allot \ !! make this dynamic
396 :			sourcepath value fpath
397 :
398 :			: also-path ( adr len path^ -- )
399 :			>r
400 :			\ len check
401 :			r@ cell+ @ over + r@ @ u> ABORT" path buffer too small!"
402 :			\ copy into
403 :			tuck r@ cell+ dup @ cell+ + swap cmove
404 :			\ make delimiter
405 :			0 r@ cell+ dup @ cell+ + 2 pick + c! 1 + r> cell+ +!
406 :			;
407 :
408 :			: only-path ( adr len path^ -- )
409 :			dup 0 swap cell+ ! also-path ;
410 :
411 :			: path+ ( path-addr "dir" -- ) \ gforth
412 :			\G Add the directory @var{dir} to the search path @var{path-addr}.
413 :			name rot also-path ;
414 :
415 :			: fpath+ ( "dir" ) \ gforth
416 :			\G Add directory @var{dir} to the Forth search path.
417 :			fpath path+ ;
418 :
419 :			: path= ( path-addr "dir1\|dir2\|dir3" ) \ gforth
420 :			\G Make a complete new search path; the path separator is \|.
421 :			name 2dup bounds ?DO i c@ [char] \| = IF 0 i c! THEN LOOP
422 :			rot only-path ;
423 :
424 :			: fpath= ( "dir1\|dir2\|dir3" ) \ gforth
425 :			\G Make a complete new Forth search path; the path separator is \|.
426 :			fpath path= ;
427 :
428 :			: path>counted cell+ dup cell+ swap @ ;
429 :
430 :			: next-path ( adr len -- adr2 len2 )
431 :			2dup 0 scan
432 :			dup 0= IF 2drop 0 -rot 0 -rot EXIT THEN
433 :			>r 1+ -rot r@ 1- -rot
434 :			r> - ;
435 :
436 :			: previous-path ( path^ -- )
437 :			dup path>counted
438 :			BEGIN tuck dup WHILE repeat ;
439 :
440 :			: .path ( path-addr -- ) \ gforth
441 :			\G Display the contents of the search path @var{path-addr}.
442 :			path>counted
443 :			BEGIN next-path dup WHILE type space REPEAT 2drop 2drop ;
444 :
445 :			: .fpath ( -- ) \ gforth
446 :			\G Display the contents of the Forth search path.
447 :			fpath .path ;
448 :
449 :			: absolut-path? ( addr u -- flag ) \ gforth
450 :			\G A path is absolute if it starts with a / or a ~ (~ expansion),
451 :			\G or if it is in the form ./*, extended regexp: ^[/~]\|./, or if
452 :			\G it has a colon as second character ("C:..."). Paths simply
453 :			\G containing a / are not absolute!
454 :			2dup 2 u> swap 1+ c@ [char] : = and >r \ dos absoulte: c:/....
455 :			over c@ [char] / = >r
456 :			over c@ [char] ~ = >r
457 :			\ 2dup 3 min S" ../" compare 0= r> or >r \ not catered for in expandtopic
458 :			2 min S" ./" compare 0=
459 :			r> r> r> or or or ;
460 :
461 :			Create ofile 0 c, 255 chars allot
462 :			Create tfile 0 c, 255 chars allot
463 :
464 :			: pathsep? dup [char] / = swap [char] \ = or ;
465 :
466 :			: need/ ofile dup c@ + c@ pathsep? 0= IF s" /" ofile +place THEN ;
467 :
468 :			: extractpath ( adr len -- adr len2 )
469 :			BEGIN dup WHILE 1-
470 :			2dup + c@ pathsep? IF EXIT THEN
471 :			REPEAT ;
472 :
473 :			: remove~+ ( -- )
474 :			ofile count 3 min s" ~+/" compare 0=
475 :			IF
476 :			ofile count 3 /string ofile place
477 :			THEN ;
478 :
479 :			: expandtopic ( -- ) \ stack effect correct? - anton
480 :			\ expands "./" into an absolute name
481 :			ofile count 2 min s" ./" compare 0=
482 :			IF
483 :			ofile count 1 /string tfile place
484 :			0 ofile c! sourcefilename extractpath ofile place
485 :			ofile c@ IF need/ THEN
486 :			tfile count over c@ pathsep? IF 1 /string THEN
487 :			ofile +place
488 :			THEN ;
489 :
490 :			: compact.. ( adr len -- adr2 len2 )
491 :	pazsan	1.85	\ deletes phrases like "xy/.." out of our directory name 2dec97jaw
492 :			over swap
493 :			BEGIN dup WHILE
494 :			dup >r '/ scan 2dup 4 min s" /../" compare 0=
495 :			IF
496 :			dup r> - >r 4 /string over r> + 4 -
497 :			swap 2dup + >r move dup r> over -
498 :			ELSE
499 :			rdrop dup 1 min /string
500 :			THEN
501 :			REPEAT drop over - ;
502 :	jwilke	1.77
503 :			: reworkdir ( -- )
504 :			remove~+
505 :			ofile count compact..
506 :			nip ofile c! ;
507 :
508 :			: open-ofile ( -- fid ior )
509 :			\G opens the file whose name is in ofile
510 :			expandtopic reworkdir
511 :			ofile count r/o open-file ;
512 :
513 :			: check-path ( adr1 len1 adr2 len2 -- fd 0 \| 0 <>0 )
514 :			0 ofile ! >r >r ofile place need/
515 :			r> r> ofile +place
516 :			open-ofile ;
517 :
518 :			: open-path-file ( addr1 u1 path-addr -- wfileid addr2 u2 0 \| ior ) \ gforth
519 :			\G Look in path @var{path-addr} for the file specified by @var{addr1 u1}.
520 :			\G If found, the resulting path and an open file descriptor
521 :			\G are returned. If the file is not found, @var{ior} is non-zero.
522 :			>r
523 :			2dup absolut-path?
524 :			IF rdrop
525 :			ofile place open-ofile
526 :			dup 0= IF >r ofile count r> THEN EXIT
527 :			ELSE r> path>counted
528 :			BEGIN next-path dup
529 :			WHILE 5 pick 5 pick check-path
530 :			0= IF >r 2drop 2drop r> ofile count 0 EXIT ELSE drop THEN
531 :			REPEAT
532 :			2drop 2drop 2drop -38
533 :			THEN ;
534 :
535 :			: open-fpath-file ( addr1 u1 -- wfileid addr2 u2 0 \| ior ) \ gforth
536 :			\G Look in the Forth search path for the file specified by @var{addr1 u1}.
537 :			\G If found, the resulting path and an open file descriptor
538 :			\G are returned. If the file is not found, @var{ior} is non-zero.
539 :			fpath open-path-file ;
540 :
541 :			fpath= ~+
542 :
543 :			[THEN]
544 :
545 :			\ \ -------------------- include require 13may99jaw
546 :
547 :			>CROSS
548 :
549 :			: add-included-file ( adr len -- adr )
550 :			dup >fl-name char+ allocate throw >r
551 :			file-list @ r@ ! r@ file-list !
552 :			r@ >fl-name place r> ;
553 :
554 :			: included? ( c-addr u -- f )
555 :			file-list
556 :			BEGIN @ dup
557 :			WHILE >r 2dup r@ >fl-name count compare 0=
558 :			IF rdrop 2drop true EXIT THEN
559 :			r>
560 :			REPEAT
561 :			2drop drop false ;
562 :
563 :			false DebugFlag showincludedfiles
564 :
565 :			: included1 ( fd adr u -- )
566 :			\ include file adr u / fd
567 :			\ we don't use fd with include-file, because the forth system
568 :			\ doesn't know the name of the file to get a nice error report
569 :			[d?] showincludedfiles
570 :			IF cr ." Including: " 2dup type ." ..." THEN
571 :			rot close-file throw
572 :			source-desc >r
573 :			add-included-file to source-desc
574 :			sourcefilename
575 :			['] included catch
576 :			r> to source-desc
577 :			throw ;
578 :
579 :			: included ( adr len -- )
580 :			cross-file-list to file-list
581 :			open-fpath-file throw
582 :			included1 ;
583 :
584 :			: required ( adr len -- )
585 :			cross-file-list to file-list
586 :			open-fpath-file throw \ 2dup cr ." R:" type
587 :			2dup included?
588 :			IF 2drop close-file throw
589 :			ELSE included1
590 :			THEN ;
591 :
592 :			: include bl word count included ;
593 :
594 :			: require bl word count required ;
595 :
596 :	jwilke	1.78	0 [IF]
597 :
598 :	jwilke	1.77	also forth definitions previous
599 :
600 :			: included ( adr len -- ) included ;
601 :
602 :			: required ( adr len -- ) required ;
603 :
604 :			: include include ;
605 :
606 :			: require require ;
607 :
608 :	jwilke	1.78	[THEN]
609 :
610 :	jwilke	1.77	>CROSS
611 :			hex
612 :
613 :			\ \ -------------------- Error Handling 05aug97jaw
614 :
615 :			\ Flags
616 :
617 :			also forth definitions \ these values may be predefined before
618 :			\ the cross-compiler is loaded
619 :
620 :			false DefaultValue stack-warn \ check on empty stack at any definition
621 :			false DefaultValue create-forward-warn \ warn on forward declaration of created words
622 :
623 :			previous >CROSS
624 :
625 :			: .dec
626 :			base @ decimal swap . base ! ;
627 :
628 :			: .sourcepos
629 :			cr sourcefilename type ." :"
630 :			sourceline# .dec ;
631 :
632 :			: warnhead
633 :			\G display error-message head
634 :			\G perhaps with linenumber and filename
635 :			.sourcepos ." Warning: " ;
636 :
637 :			: empty? depth IF .sourcepos ." Stack not empty!" THEN ;
638 :
639 :			stack-warn [IF]
640 :			: defempty? empty? ;
641 :			[ELSE]
642 :			: defempty? ; immediate
643 :			[THEN]
644 :
645 :	jwilke	1.105	\ \ -------------------- Compiler Plug Ins 01aug97jaw
646 :
647 :			>CROSS
648 :
649 :			\ Compiler States
650 :
651 :			Variable comp-state
652 :			0 Constant interpreting
653 :			1 Constant compiling
654 :			2 Constant resolving
655 :			3 Constant assembling
656 :
657 :			: compiling? comp-state @ compiling = ;
658 :
659 :			: pi-undefined -1 ABORT" Plugin undefined" ;
660 :
661 :			: Plugin ( -- : pluginname )
662 :			Create
663 :			\ for normal cross-compiling only one action
664 :			\ exists, this fields are identical. For the instant
665 :			\ simulation environment we need, two actions for each plugin
666 :			\ the target one and the one that generates the simulation code
667 :			['] pi-undefined , \ action
668 :			['] pi-undefined , \ target plugin action
669 :			8765 , \ plugin magic
670 :			DOES> perform ;
671 :
672 :			Plugin DummyPlugin
673 :
674 :			: 'PI ( -- addr : pluginname )
675 :			' >body dup 2 cells + @ 8765 <> ABORT" not a plugin" ;
676 :
677 :			: plugin-of ( xt -- : pluginname )
678 :			dup 'PI 2! ;
679 :
680 :			: action-of ( xt -- : plunginname )
681 :			'PI cell+ ! ;
682 :
683 :			: TPA ( -- : plugin )
684 :			\ target plugin action
685 :			\ executes current target action of plugin
686 :			'PI cell+ POSTPONE literal POSTPONE perform ; immediate
687 :
688 :			Variable ppi-temp 0 ppi-temp !
689 :
690 :			: pa:
691 :			\g define plugin action
692 :			ppi-temp @ ABORT" pa: definition not closed"
693 :			'PI ppi-temp ! :noname ;
694 :
695 :			: ;pa
696 :			\g end a definition for plugin action
697 :			POSTPONE ; ppi-temp @ ! 0 ppi-temp ! ; immediate
698 :
699 :
700 :	jwilke	1.107	Plugin dlit, ( d -- ) \ compile numerical value the target
701 :	jwilke	1.105	Plugin lit, ( n -- )
702 :			Plugin alit, ( n -- )
703 :
704 :			Plugin branch, ( target-addr -- ) \ compiles a branch
705 :			Plugin ?branch, ( target-addr -- ) \ compiles a ?branch
706 :			Plugin branchmark, ( -- branch-addr ) \ reserves room for a branch
707 :			Plugin ?branchmark, ( -- branch-addr ) \ reserves room for a ?branch
708 :			Plugin ?domark, ( -- branch-addr ) \ reserves room for a ?do branch
709 :			Plugin branchto, ( -- ) \ actual program position is target of a branch (do e.g. alignment)
710 :			' NOOP plugin-of branchto,
711 :			Plugin branchtoresolve, ( branch-addr -- ) \ resolves a forward reference from branchmark
712 :			Plugin branchtomark, ( -- target-addr ) \ marks a branch destination
713 :
714 :			Plugin colon, ( tcfa -- ) \ compiles call to tcfa at current position
715 :			Plugin prim, ( tcfa -- ) \ compiles primitive invocation
716 :			Plugin colonmark, ( -- addr ) \ marks a colon call
717 :			Plugin colon-resolve ( tcfa addr -- )
718 :
719 :			Plugin addr-resolve ( target-addr addr -- )
720 :			Plugin doer-resolve ( ghost res-pnt target-addr addr -- ghost res-pnt )
721 :
722 :			Plugin ncontrols? ( [ xn ... x1 ] n -- ) \ checks wheter n control structures are open
723 :			Plugin if, ( -- if-token )
724 :			Plugin else, ( if-token -- if-token )
725 :			Plugin then, ( if-token -- )
726 :			Plugin ahead,
727 :			Plugin begin,
728 :			Plugin while,
729 :			Plugin until,
730 :			Plugin again,
731 :			Plugin repeat,
732 :			Plugin cs-swap ( x1 x2 -- x2 x1 )
733 :
734 :			Plugin case, ( -- n )
735 :			Plugin of, ( n -- x1 n )
736 :			Plugin endof, ( x1 n -- x2 n )
737 :			Plugin endcase, ( x1 .. xn n -- )
738 :
739 :			Plugin do, ( -- do-token )
740 :			Plugin ?do, ( -- ?do-token )
741 :			Plugin for, ( -- for-token )
742 :			Plugin loop, ( do-token / ?do-token -- )
743 :			Plugin +loop, ( do-token / ?do-token -- )
744 :			Plugin next, ( for-token )
745 :			Plugin leave, ( -- )
746 :			Plugin ?leave, ( -- )
747 :
748 :			[IFUNDEF] ca>native
749 :			Plugin ca>native
750 :			[THEN]
751 :
752 :			Plugin doprim, \ compiles start of a primitive
753 :			Plugin docol, \ compiles start of a colon definition
754 :			Plugin doer,
755 :			Plugin fini, \ compiles end of definition ;s
756 :			Plugin doeshandler,
757 :			Plugin dodoes,
758 :
759 :			Plugin colon-start
760 :			' noop plugin-of colon-start
761 :			Plugin colon-end
762 :			' noop plugin-of colon-end
763 :
764 :			Plugin ]comp \ starts compilation
765 :			' noop plugin-of ]comp
766 :			Plugin comp[ \ ends compilation
767 :			' noop plugin-of comp[
768 :
769 :			Plugin t>body \ we need the system >body
770 :			\ and the target >body
771 :
772 :			>TARGET
773 :			: >body t>body ;
774 :
775 :
776 :	jwilke	1.103	\ Ghost Builder 06oct92py
777 :
778 :	jwilke	1.105	>CROSS
779 :	jwilke	1.103	hex
780 :	jwilke	1.105	\ Values for ghost magic
781 :	jwilke	1.103	4711 Constant <fwd> 4712 Constant <res>
782 :			4713 Constant <imm> 4714 Constant <do:>
783 :			4715 Constant <skip>
784 :
785 :	jwilke	1.105	\ Bitmask for ghost flags
786 :	jwilke	1.103	1 Constant <unique>
787 :	jwilke	1.105	2 Constant <primitive>
788 :
789 :			\ FXIME: move this to general stuff?
790 :			: set-flag ( addr flag -- )
791 :			over @ or swap ! ;
792 :
793 :			: reset-flag ( addr flag -- )
794 :			invert over @ and swap ! ;
795 :
796 :			: get-flag ( addr flag -- f )
797 :			swap @ and 0<> ;
798 :
799 :	jwilke	1.103
800 :			Struct
801 :	jwilke	1.52
802 :	jwilke	1.103	\ link to next ghost (always the first element)
803 :			cell% field >next-ghost
804 :	jwilke	1.52
805 :	jwilke	1.103	\ type of ghost
806 :			cell% field >magic
807 :
808 :			\ pointer where ghost is in target, or if unresolved
809 :			\ points to the where we have to resolve (linked-list)
810 :			cell% field >link
811 :	jwilke	1.52
812 :	jwilke	1.106	\ execution semantics (while target compiling) of ghost
813 :	jwilke	1.103	cell% field >exec
814 :	jwilke	1.52
815 :	jwilke	1.106	\ compilation action of this ghost; this is what is
816 :			\ done to compile a call (or whatever) to this definition.
817 :			\ E.g. >comp contains the semantic of postpone s"
818 :			\ whereas >exec-compile contains the semantic of s"
819 :	jwilke	1.105	cell% field >comp
820 :
821 :	jwilke	1.106	\ Compilation sematics (while parsing) of this ghost. E.g.
822 :			\ "\" will skip the rest of line.
823 :			\ These semantics are defined by Cond: and
824 :			\ if a word is made immediate in instant, then the >exec2 field
825 :			\ gets copied to here
826 :	jwilke	1.103	cell% field >exec-compile
827 :	jwilke	1.52
828 :	jwilke	1.106	\ Additional execution semantics of this ghost. This is used
829 :			\ for code generated by instant and for the doer-xt of created
830 :			\ words
831 :	jwilke	1.103	cell% field >exec2
832 :	jwilke	1.52
833 :	jwilke	1.103	cell% field >created
834 :	jwilke	1.52
835 :	jwilke	1.103	\ the xt of the created ghost word itself
836 :			cell% field >ghost-xt
837 :	jwilke	1.52
838 :	jwilke	1.103	\ pointer to the counted string of the assiciated
839 :			\ assembler label
840 :			cell% field >asm-name
841 :	jwilke	1.52
842 :	jwilke	1.103	\ mapped primitives have a special address, so
843 :			\ we are able to detect them
844 :			cell% field >asm-dummyaddr
845 :
846 :			\ for builder (create, variable...) words
847 :			\ the execution symantics of words built are placed here
848 :			\ this is a doer ghost or a dummy ghost
849 :			cell% field >do:ghost
850 :	pazsan	1.93
851 :	jwilke	1.103	cell% field >ghost-flags
852 :	pazsan	1.93
853 :	jwilke	1.103	cell% field >ghost-name
854 :	jwilke	1.52
855 :	jwilke	1.103	End-Struct ghost-struct
856 :	jwilke	1.52
857 :	jwilke	1.103	Variable ghost-list
858 :			0 ghost-list !
859 :	jwilke	1.52
860 :			Variable executed-ghost \ last executed ghost, needed in tcreate and gdoes>
861 :	jwilke	1.103	\ Variable last-ghost \ last ghost that is created
862 :	jwilke	1.52	Variable last-header-ghost \ last ghost definitions with header
863 :
864 :	jwilke	1.103	\ space for ghosts resolve structure
865 :			\ we create ghosts in a sepearte space
866 :			\ and not to the current host dp, because this
867 :			\ gives trouble with instant while compiling and creating
868 :			\ a ghost for a forward reference
869 :			\ BTW: we cannot allocate another memory region
870 :			\ because allot will check the overflow!!
871 :			Variable cross-space-dp
872 :			Create cross-space 250000 allot here 100 allot align
873 :			Constant cross-space-end
874 :			cross-space cross-space-dp !
875 :			Variable cross-space-dp-orig
876 :
877 :			: cross-space-used cross-space-dp @ cross-space - ;
878 :
879 :			: >space ( -- )
880 :			dp @ cross-space-dp-orig !
881 :			cross-space-dp @ dp ! ;
882 :
883 :			: space> ( -- )
884 :			dp @ dup cross-space-dp !
885 :			cross-space-end u> ABORT" CROSS: cross-space overflow"
886 :			cross-space-dp-orig @ dp ! ;
887 :
888 :	jwilke	1.106	\ this is just for debugging, to see this in the backtrace
889 :	jwilke	1.103	: execute-exec execute ;
890 :			: execute-exec2 execute ;
891 :			: execute-exec-compile execute ;
892 :
893 :			: NoExec
894 :			executed-ghost @ >exec2 @
895 :			?dup
896 :			IF execute-exec2
897 :			ELSE true ABORT" CROSS: Don't execute ghost, or immediate target word"
898 :			THEN ;
899 :
900 :	jwilke	1.105	Defer is-forward
901 :
902 :	jwilke	1.103	: (ghostheader) ( -- )
903 :	jwilke	1.105	ghost-list linked <fwd> , 0 , ['] NoExec , ['] is-forward ,
904 :			0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , ;
905 :	jwilke	1.103
906 :			: ghostheader ( -- ) (ghostheader) 0 , ;
907 :
908 :			' Ghosts >wordlist Constant ghosts-wordlist
909 :
910 :			\ the current wordlist for ghost definitions in the host
911 :			ghosts-wordlist Value current-ghosts
912 :
913 :	jwilke	1.52	: Make-Ghost ( "name" -- ghost )
914 :	jwilke	1.103	>space
915 :			\ save current and create in ghost vocabulary
916 :			get-current >r current-ghosts set-current
917 :			>in @ Create >in !
918 :			\ some forth systems like iForth need the immediate directly
919 :			\ after the word is created
920 :			\ restore current
921 :			r> set-current
922 :			here (ghostheader)
923 :			bl word count string, align
924 :			space>
925 :			\ set ghost-xt field by doing a search
926 :			dup >ghost-name count
927 :			current-ghosts search-wordlist
928 :			0= ABORT" CROSS: Just created, must be there!"
929 :			over >ghost-xt !
930 :			DOES>
931 :			dup executed-ghost !
932 :			>exec @ execute-exec ;
933 :	jwilke	1.52
934 :			\ ghost words 14oct92py
935 :			\ changed: 10may93py/jaw
936 :
937 :	jwilke	1.103	Defer search-ghosts
938 :
939 :			: (search-ghosts) ( adr len -- cfa true \| 0 )
940 :			current-ghosts search-wordlist ;
941 :
942 :			' (search-ghosts) IS search-ghosts
943 :
944 :			: gsearch ( addr len -- ghost true \| 0 )
945 :			search-ghosts
946 :			dup IF swap >body swap THEN ;
947 :
948 :			: gfind ( string -- ghost true / string false )
949 :	jwilke	1.52	\ searches for string in word-list ghosts
950 :	jwilke	1.103	\ dup count type space
951 :			dup >r count gsearch
952 :			dup IF rdrop ELSE r> swap THEN ;
953 :	jwilke	1.52
954 :			: gdiscover ( xt -- ghost true \| xt false )
955 :	jwilke	1.103	>r ghost-list
956 :	jwilke	1.52	BEGIN @ dup
957 :	jwilke	1.103	WHILE dup >magic @ <fwd> <>
958 :			IF dup >link @ r@ =
959 :			IF rdrop true EXIT THEN
960 :			THEN
961 :	jwilke	1.52	REPEAT
962 :	jwilke	1.103	drop r> false ;
963 :	jwilke	1.52
964 :	jwilke	1.105	: xt>ghost ( xt -- ghost )
965 :			gdiscover 0= ABORT" CROSS: ghost not found for this xt" ;
966 :
967 :	jwilke	1.103	: Ghost ( "name" -- ghost )
968 :			>in @ bl word gfind IF nip EXIT THEN
969 :	jwilke	1.52	drop >in ! Make-Ghost ;
970 :
971 :			: >ghostname ( ghost -- adr len )
972 :	jwilke	1.103	>ghost-name count ;
973 :
974 :			: forward? ( ghost -- flag )
975 :			>magic @ <fwd> = ;
976 :
977 :			: undefined? ( ghost -- flag )
978 :			>magic @ dup <fwd> = swap <skip> = or ;
979 :
980 :			: immediate? ( ghost -- flag )
981 :			>magic @ <imm> = ;
982 :
983 :			Variable TWarnings
984 :			TWarnings on
985 :			Variable Exists-Warnings
986 :			Exists-Warnings on
987 :
988 :			: exists-warning ( ghost -- ghost )
989 :			TWarnings @ Exists-Warnings @ and
990 :			IF dup >ghostname warnhead type ." exists " THEN ;
991 :
992 :			\ : HeaderGhost Ghost ;
993 :
994 :			Variable reuse-ghosts reuse-ghosts off
995 :
996 :			: HeaderGhost ( "name" -- ghost )
997 :			>in @
998 :			bl word count
999 :			\ 2dup type space
1000 :			current-ghosts search-wordlist
1001 :			IF >body dup undefined? reuse-ghosts @ or
1002 :			IF nip EXIT
1003 :			ELSE exists-warning
1004 :			THEN
1005 :			drop >in !
1006 :			ELSE >in !
1007 :			THEN
1008 :			\ we keep the execution semantics of the prviously
1009 :			\ defined words, this is a workaround
1010 :			\ for the redefined \ until vocs work
1011 :			Make-Ghost ;
1012 :
1013 :	jwilke	1.78	: .ghost ( ghost -- ) >ghostname type ;
1014 :
1015 :	jwilke	1.77	\ ' >ghostname ALIAS @name
1016 :	jwilke	1.52
1017 :	jwilke	1.115	: findghost ( "ghostname" -- ghost )
1018 :			bl word gfind 0= ABORT" CROSS: Ghost don't exists" ;
1019 :
1020 :	jwilke	1.103	: [G'] ( -- ghost : name )
1021 :			\G ticks a ghost and returns its address
1022 :	jwilke	1.115	findghost
1023 :			state @ IF postpone literal THEN ; immediate
1024 :	jwilke	1.103
1025 :	jwilke	1.105	: g>xt ( ghost -- xt )
1026 :			\G Returns the xt (cfa) of a ghost. Issues a warning if undefined.
1027 :	jwilke	1.103	dup undefined? ABORT" CROSS: forward " >link @ ;
1028 :
1029 :	jwilke	1.105	: g>body ( ghost -- body )
1030 :			\G Returns the body-address (pfa) of a ghost.
1031 :			\G Issues a warning if undefined (a forward-reference).
1032 :			g>xt X >body ;
1033 :
1034 :	jwilke	1.103	1 Constant <label>
1035 :	jwilke	1.52
1036 :	jwilke	1.103	Struct
1037 :			\ bitmask of address type (not used for now)
1038 :			cell% field addr-type
1039 :			\ if this address is an xt, this field points to the ghost
1040 :			cell% field addr-xt-ghost
1041 :			\ a bit mask that tells as what part of the cell
1042 :			\ is refenced from an address pointer, used for assembler generation
1043 :			cell% field addr-refs
1044 :			End-Struct addr-struct
1045 :
1046 :			: %allocerase ( align size -- addr )
1047 :			dup >r %alloc dup r> erase ;
1048 :
1049 :			\ returns the addr struct, define it if 0 reference
1050 :			: define-addr-struct ( addr -- struct-addr )
1051 :			dup @ ?dup IF nip EXIT THEN
1052 :			addr-struct %allocerase tuck swap ! ;
1053 :	jwilke	1.75
1054 :	jwilke	1.52	\ Predefined ghosts 12dec92py
1055 :
1056 :	jwilke	1.114	Ghost - drop \ need a ghost otherwise "-" would be treated as a number
1057 :
1058 :	jwilke	1.103	Ghost 0= drop
1059 :			Ghost branch Ghost ?branch 2drop
1060 :			Ghost (do) Ghost (?do) 2drop
1061 :			Ghost (for) drop
1062 :			Ghost (loop) Ghost (+loop) 2drop
1063 :			Ghost (next) drop
1064 :			Ghost unloop Ghost ;S 2drop
1065 :			Ghost lit Ghost (compile) Ghost ! 2drop drop
1066 :			Ghost (does>) Ghost noop 2drop
1067 :			Ghost (.") Ghost (S") Ghost (ABORT") 2drop drop
1068 :			Ghost ' drop
1069 :			Ghost :docol Ghost :doesjump Ghost :dodoes 2drop drop
1070 :			Ghost :dovar drop
1071 :			Ghost over Ghost = Ghost drop 2drop drop
1072 :			Ghost 2drop drop
1073 :			Ghost 2dup drop
1074 :	jwilke	1.115	Ghost state drop
1075 :			Ghost call drop
1076 :			Ghost @ drop
1077 :			Ghost useraddr drop
1078 :			Ghost execute drop
1079 :			Ghost + drop
1080 :			Ghost (C") drop
1081 :			Ghost decimal drop
1082 :			Ghost hex drop
1083 :	jwilke	1.52
1084 :			\ \ Parameter for target systems 06oct92py
1085 :
1086 :	jwilke	1.103
1087 :			>cross
1088 :	jwilke	1.52	\ we define it ans like...
1089 :			wordlist Constant target-environment
1090 :
1091 :	jwilke	1.103	\ save information of current dictionary to restore with environ>
1092 :			Variable env-current
1093 :	jwilke	1.52
1094 :			: >ENVIRON get-current env-current ! target-environment set-current ;
1095 :			: ENVIRON> env-current @ set-current ;
1096 :	pazsan	1.43
1097 :	anton	1.48	>TARGET
1098 :	pazsan	1.43
1099 :	jwilke	1.103	: environment? ( addr len -- [ x ] true \| false )
1100 :			\G returns the content of environment variable and true or
1101 :			\G false if not present
1102 :			target-environment search-wordlist
1103 :			IF EXECUTE true ELSE false THEN ;
1104 :
1105 :			: $has? ( addr len -- x \| false )
1106 :			\G returns the content of environment variable
1107 :			\G or false if not present
1108 :			T environment? H dup IF drop THEN ;
1109 :
1110 :			: e? ( "name" -- x )
1111 :			\G returns the content of environment variable.
1112 :			\G The variable is expected to exist. If not, issue an error.
1113 :			bl word count T environment? H
1114 :			0= ABORT" environment variable not defined!" ;
1115 :
1116 :			: has? ( "name" --- x \| false )
1117 :			\G returns the content of environment variable
1118 :			\G or false if not present
1119 :			bl word count T $has? H ;
1120 :	jwilke	1.52
1121 :	anton	1.48
1122 :	pazsan	1.54	>ENVIRON get-order get-current swap 1+ set-order
1123 :			true SetValue compiler
1124 :	pazsan	1.83	true SetValue cross
1125 :	pazsan	1.54	true SetValue standard-threading
1126 :			>TARGET previous
1127 :	jwilke	1.52
1128 :	jwilke	1.77	0
1129 :	jwilke	1.103	[IFDEF] mach-file drop mach-file count 1 [THEN]
1130 :			[IFDEF] machine-file drop machine-file 1 [THEN]
1131 :			[IF] included hex
1132 :	jwilke	1.77	[ELSE] cr ." No machine description!" ABORT
1133 :			[THEN]
1134 :	pazsan	1.43
1135 :	jwilke	1.53	>ENVIRON
1136 :
1137 :	pazsan	1.54	T has? ec H
1138 :			[IF]
1139 :			false DefaultValue relocate
1140 :			false DefaultValue file
1141 :			false DefaultValue OS
1142 :			false DefaultValue prims
1143 :			false DefaultValue floating
1144 :			false DefaultValue glocals
1145 :			false DefaultValue dcomps
1146 :			false DefaultValue hash
1147 :			false DefaultValue xconds
1148 :			false DefaultValue header
1149 :	jwilke	1.105	false DefaultValue backtrace
1150 :			false DefaultValue new-input
1151 :			false DefaultValue peephole
1152 :	pazsan	1.54	[THEN]
1153 :
1154 :			true DefaultValue interpreter
1155 :			true DefaultValue ITC
1156 :			false DefaultValue rom
1157 :	jwilke	1.73	true DefaultValue standardthreading
1158 :	jwilke	1.53
1159 :	jwilke	1.52	>TARGET
1160 :	jwilke	1.53	s" relocate" T environment? H
1161 :	jwilke	1.103	\ JAW why set NIL to this?!
1162 :			[IF] drop \ SetValue NIL
1163 :	jwilke	1.113	[ELSE] >ENVIRON X NIL SetValue relocate
1164 :	jwilke	1.53	[THEN]
1165 :	jwilke	1.113	>TARGET
1166 :
1167 :			0 Constant NIL
1168 :	pazsan	1.43
1169 :			>CROSS
1170 :
1171 :	jwilke	1.52	\ \ Create additional parameters 19jan95py
1172 :	pazsan	1.19
1173 :	jwilke	1.71	\ currently cross only works for host machines with address-unit-bits
1174 :			\ eual to 8 because of s! and sc!
1175 :			\ but I start to query the environment just to modularize a little bit
1176 :
1177 :			: check-address-unit-bits ( -- )
1178 :			\ s" ADDRESS-UNIT-BITS" environment?
1179 :			\ IF 8 <> ELSE true THEN
1180 :			\ ABORT" ADDRESS-UNIT-BITS unknown or not equal to 8!"
1181 :
1182 :			\ shit, this doesn't work because environment? is only defined for
1183 :			\ gforth.fi and not kernl???.fi
1184 :			;
1185 :
1186 :			check-address-unit-bits
1187 :			8 Constant bits/byte \ we define: byte is address-unit
1188 :
1189 :			1 bits/byte lshift Constant maxbyte
1190 :	jwilke	1.77	\ this sets byte size for the target machine, (probably right guess) jaw
1191 :	jwilke	1.67
1192 :	pazsan	1.19	T
1193 :	jwilke	1.71	NIL Constant TNIL
1194 :			cell Constant tcell
1195 :			cell<< Constant tcell<<
1196 :			cell>bit Constant tcell>bit
1197 :			bits/char Constant tbits/char
1198 :			bits/char H bits/byte T /
1199 :			Constant tchar
1200 :			float Constant tfloat
1201 :			1 bits/char lshift Constant tmaxchar
1202 :			[IFUNDEF] bits/byte
1203 :			8 Constant tbits/byte
1204 :			[ELSE]
1205 :			bits/byte Constant tbits/byte
1206 :			[THEN]
1207 :	pazsan	1.19	H
1208 :	pazsan	1.81	tbits/char bits/byte / Constant tbyte
1209 :	jwilke	1.71
1210 :	pazsan	1.19
1211 :	anton	1.48	\ Variables 06oct92py
1212 :
1213 :			Variable image
1214 :			Variable tlast TNIL tlast ! \ Last name field
1215 :			Variable tlastcfa \ Last code field
1216 :			Variable bit$
1217 :	jwilke	1.52
1218 :			\ statistics 10jun97jaw
1219 :
1220 :			Variable headers-named 0 headers-named !
1221 :			Variable user-vars 0 user-vars !
1222 :
1223 :	jwilke	1.67	: target>bitmask-size ( u1 -- u2 )
1224 :			1- tcell>bit rshift 1+ ;
1225 :
1226 :	jwilke	1.105	: allocatetarget ( size -- adr )
1227 :	jwilke	1.67	dup allocate ABORT" CROSS: No memory for target"
1228 :			swap over swap erase ;
1229 :	jwilke	1.52
1230 :	pazsan	1.54	\ \ memregion.fs
1231 :	jwilke	1.52
1232 :
1233 :			Variable last-defined-region \ pointer to last defined region
1234 :			Variable region-link \ linked list with all regions
1235 :			Variable mirrored-link \ linked list for mirrored regions
1236 :			0 dup mirrored-link ! region-link !
1237 :
1238 :
1239 :	jwilke	1.103	: >rname 7 cells + ;
1240 :			: >rbm 4 cells + ;
1241 :			: >rmem 5 cells + ;
1242 :			: >rtype 6 cells + ;
1243 :	jwilke	1.67	: >rlink 3 cells + ;
1244 :	jwilke	1.52	: >rdp 2 cells + ;
1245 :			: >rlen cell+ ;
1246 :			: >rstart ;
1247 :
1248 :	jwilke	1.113	: (region) ( addr len region -- )
1249 :			\G change startaddress and length of an existing region
1250 :			>r r@ last-defined-region !
1251 :			r@ >rlen ! dup r@ >rstart ! r> >rdp ! ;
1252 :	jwilke	1.52
1253 :	jwilke	1.103	: region ( addr len -- )
1254 :			\G create a new region
1255 :	jwilke	1.52	\ check whether predefined region exists
1256 :			save-input bl word find >r >r restore-input throw r> r> 0=
1257 :			IF \ make region
1258 :			drop
1259 :			save-input create restore-input throw
1260 :			here last-defined-region !
1261 :			over ( startaddr ) , ( length ) , ( dp ) ,
1262 :	jwilke	1.103	region-link linked 0 , 0 , 0 , bl word count string,
1263 :	jwilke	1.52	ELSE \ store new parameters in region
1264 :			bl word drop
1265 :	jwilke	1.113	>body (region)
1266 :	jwilke	1.52	THEN ;
1267 :
1268 :	jwilke	1.103	: borders ( region -- startaddr endaddr )
1269 :			\G returns lower and upper region border
1270 :	jwilke	1.67	dup >rstart @ swap >rlen @ over + ;
1271 :	jwilke	1.52
1272 :	jwilke	1.103	: extent ( region -- startaddr len )
1273 :			\G returns the really used area
1274 :	jwilke	1.67	dup >rstart @ swap >rdp @ over - ;
1275 :	jwilke	1.52
1276 :	jwilke	1.103	: area ( region -- startaddr totallen )
1277 :			\G returns the total area
1278 :	jwilke	1.79	dup >rstart @ swap >rlen @ ;
1279 :	jwilke	1.52
1280 :	jwilke	1.103	: mirrored
1281 :			\G mark a region as mirrored
1282 :	jwilke	1.52	mirrored-link
1283 :	jwilke	1.68	align linked last-defined-region @ , ;
1284 :	jwilke	1.52
1285 :	jwilke	1.67	: .addr ( u -- )
1286 :			\G prints a 16 or 32 Bit nice hex value
1287 :	jwilke	1.52	base @ >r hex
1288 :			tcell 2 u>
1289 :	jwilke	1.77	IF s>d <# # # # # [char] . hold # # # # #> type
1290 :	jwilke	1.52	ELSE s>d <# # # # # # #> type
1291 :	jwilke	1.103	THEN r> base ! space ;
1292 :	jwilke	1.52
1293 :			: .regions \G display region statistic
1294 :
1295 :			\ we want to list the regions in the right order
1296 :			\ so first collect all regions on stack
1297 :			0 region-link @
1298 :			BEGIN dup WHILE dup @ REPEAT drop
1299 :			BEGIN dup
1300 :	jwilke	1.67	WHILE cr
1301 :			0 >rlink - >r
1302 :			r@ >rname count tuck type
1303 :	jwilke	1.52	12 swap - 0 max spaces space
1304 :	jwilke	1.67	." Start: " r@ >rstart @ dup .addr space
1305 :			." End: " r@ >rlen @ + .addr space
1306 :			." DP: " r> >rdp @ .addr
1307 :	jwilke	1.52	REPEAT drop
1308 :	jwilke	1.53	s" rom" T $has? H 0= ?EXIT
1309 :	jwilke	1.52	cr ." Mirrored:"
1310 :			mirrored-link @
1311 :			BEGIN dup
1312 :	jwilke	1.67	WHILE space dup cell+ @ >rname count type @
1313 :	jwilke	1.52	REPEAT drop cr
1314 :			;
1315 :
1316 :			\ -------- predefined regions
1317 :
1318 :			0 0 region address-space
1319 :			\ total memory addressed and used by the target system
1320 :
1321 :			0 0 region dictionary
1322 :			\ rom area for the compiler
1323 :
1324 :	jwilke	1.53	T has? rom H
1325 :	jwilke	1.52	[IF]
1326 :			0 0 region ram-dictionary mirrored
1327 :			\ ram area for the compiler
1328 :			[ELSE]
1329 :			' dictionary ALIAS ram-dictionary
1330 :			[THEN]
1331 :
1332 :			0 0 region return-stack
1333 :
1334 :			0 0 region data-stack
1335 :
1336 :			0 0 region tib-region
1337 :
1338 :			' dictionary ALIAS rom-dictionary
1339 :
1340 :
1341 :	jwilke	1.105	: setup-target ( -- ) \G initialize target's memory space
1342 :	jwilke	1.53	s" rom" T $has? H
1343 :	jwilke	1.52	IF \ check for ram and rom...
1344 :	jwilke	1.72	\ address-space area nip 0<>
1345 :	jwilke	1.67	ram-dictionary area nip 0<>
1346 :			rom-dictionary area nip 0<>
1347 :	jwilke	1.72	and 0=
1348 :	jwilke	1.52	ABORT" CROSS: define address-space, rom- , ram-dictionary, with rom-support!"
1349 :			THEN
1350 :			address-space area nip
1351 :			IF
1352 :			address-space area
1353 :			ELSE
1354 :			dictionary area
1355 :			THEN
1356 :	jwilke	1.67	nip 0=
1357 :	jwilke	1.52	ABORT" CROSS: define at least address-space or dictionary!!"
1358 :	jwilke	1.67
1359 :			\ allocate target for each region
1360 :			region-link
1361 :			BEGIN @ dup
1362 :			WHILE dup
1363 :			0 >rlink - >r
1364 :			r@ >rlen @
1365 :			IF \ allocate mem
1366 :	jwilke	1.103	r@ >rlen @ allocatetarget dup image !
1367 :	jwilke	1.67	r@ >rmem !
1368 :
1369 :	jwilke	1.103	r@ >rlen @
1370 :	jwilke	1.67	target>bitmask-size allocatetarget
1371 :	jwilke	1.72	dup bit$ !
1372 :	jwilke	1.103	r@ >rbm !
1373 :	jwilke	1.67
1374 :	jwilke	1.103	r@ >rlen @
1375 :			tcell / 1+ cells allocatetarget r@ >rtype !
1376 :
1377 :			rdrop
1378 :	jwilke	1.67	ELSE r> drop THEN
1379 :	jwilke	1.72	REPEAT drop ;
1380 :
1381 :	jwilke	1.105	\ MakeKernel 22feb99jaw
1382 :	jwilke	1.72
1383 :	jwilke	1.113	: makekernel ( targetsize -- )
1384 :			\G convenience word to setup the memory of the target
1385 :			\G used by main.fs of the c-engine based systems
1386 :			100 swap dictionary (region)
1387 :			setup-target ;
1388 :	jwilke	1.72
1389 :			>MINIMAL
1390 :			: makekernel makekernel ;
1391 :			>CROSS
1392 :	jwilke	1.52
1393 :	pazsan	1.54	\ \ switched tdp for rom support 03jun97jaw
1394 :	jwilke	1.52
1395 :			\ second value is here to store some maximal value for statistics
1396 :			\ tempdp is also embedded here but has nothing to do with rom support
1397 :			\ (needs switched dp)
1398 :
1399 :			variable tempdp 0 , \ temporary dp for resolving
1400 :			variable tempdp-save
1401 :
1402 :			0 [IF]
1403 :			variable romdp 0 , \ Dictionary-Pointer for ramarea
1404 :			variable ramdp 0 , \ Dictionary-Pointer for romarea
1405 :
1406 :			\
1407 :			variable sramdp \ start of ram-area for forth
1408 :			variable sromdp \ start of rom-area for forth
1409 :
1410 :			[THEN]
1411 :
1412 :
1413 :			0 value tdp
1414 :			variable fixed \ flag: true: no automatic switching
1415 :			\ false: switching is done automatically
1416 :
1417 :			\ Switch-Policy:
1418 :			\
1419 :			\ a header is always compiled into rom
1420 :			\ after a created word (create and variable) compilation goes to ram
1421 :			\
1422 :			\ Be careful: If you want to make the data behind create into rom
1423 :			\ you have to put >rom before create!
1424 :
1425 :			variable constflag constflag off
1426 :
1427 :	jwilke	1.67	: activate ( region -- )
1428 :			\G next code goes to this region
1429 :			>rdp to tdp ;
1430 :
1431 :	jwilke	1.52	: (switchram)
1432 :	jwilke	1.53	fixed @ ?EXIT s" rom" T $has? H 0= ?EXIT
1433 :	jwilke	1.67	ram-dictionary activate ;
1434 :	jwilke	1.52
1435 :			: switchram
1436 :			constflag @
1437 :			IF constflag off ELSE (switchram) THEN ;
1438 :
1439 :			: switchrom
1440 :	jwilke	1.67	fixed @ ?EXIT rom-dictionary activate ;
1441 :	jwilke	1.52
1442 :			: >tempdp ( addr -- )
1443 :			tdp tempdp-save ! tempdp to tdp tdp ! ;
1444 :			: tempdp> ( -- )
1445 :			tempdp-save @ to tdp ;
1446 :
1447 :			: >ram fixed off (switchram) fixed on ;
1448 :			: >rom fixed off switchrom fixed on ;
1449 :			: >auto fixed off switchrom ;
1450 :
1451 :
1452 :
1453 :			\ : romstart dup sromdp ! romdp ! ;
1454 :			\ : ramstart dup sramdp ! ramdp ! ;
1455 :
1456 :	jwilke	1.67	\ default compilation goes to rom
1457 :	jwilke	1.52	\ when romable support is off, only the rom switch is used (!!)
1458 :			>auto
1459 :
1460 :	anton	1.48	: there tdp @ ;
1461 :
1462 :	jwilke	1.52	>TARGET
1463 :	anton	1.48
1464 :	jwilke	1.52	\ \ Target Memory Handling
1465 :	anton	1.1
1466 :			\ Byte ordering and cell size 06oct92py
1467 :
1468 :	pazsan	1.19	: cell+ tcell + ;
1469 :			: cells tcell<< lshift ;
1470 :	jwilke	1.71	: chars tchar * ;
1471 :			: char+ tchar + ;
1472 :	pazsan	1.19	: floats tfloat * ;
1473 :	anton	1.6
1474 :	anton	1.1	>CROSS
1475 :	pazsan	1.19	: cell/ tcell<< rshift ;
1476 :	anton	1.1	>TARGET
1477 :			20 CONSTANT bl
1478 :	jwilke	1.52	\ TNIL Constant NIL
1479 :	anton	1.1
1480 :			>CROSS
1481 :
1482 :	pazsan	1.20	bigendian
1483 :			[IF]
1484 :	jwilke	1.106	: DS! ( d addr -- ) tcell bounds swap 1-
1485 :	pazsan	1.20	DO maxbyte ud/mod rot I c! -1 +LOOP 2drop ;
1486 :	jwilke	1.106	: DS@ ( addr -- d ) >r 0 0 r> tcell bounds
1487 :			DO maxbyte * swap maxbyte um* rot + swap I c@ + swap LOOP ;
1488 :	pazsan	1.57	: Sc! ( n addr -- ) >r s>d r> tchar bounds swap 1-
1489 :			DO maxbyte ud/mod rot I c! -1 +LOOP 2drop ;
1490 :			: Sc@ ( addr -- n ) >r 0 0 r> tchar bounds
1491 :			DO maxbyte * swap maxbyte um* rot + swap I c@ + swap LOOP d>s ;
1492 :	pazsan	1.19	[ELSE]
1493 :	jwilke	1.106	: DS! ( d addr -- ) tcell bounds
1494 :	pazsan	1.20	DO maxbyte ud/mod rot I c! LOOP 2drop ;
1495 :	jwilke	1.106	: DS@ ( addr -- n ) >r 0 0 r> tcell bounds swap 1-
1496 :			DO maxbyte * swap maxbyte um* rot + swap I c@ + swap -1 +LOOP ;
1497 :	pazsan	1.57	: Sc! ( n addr -- ) >r s>d r> tchar bounds
1498 :			DO maxbyte ud/mod rot I c! LOOP 2drop ;
1499 :			: Sc@ ( addr -- n ) >r 0 0 r> tchar bounds swap 1-
1500 :			DO maxbyte * swap maxbyte um* rot + swap I c@ + swap -1 +LOOP d>s ;
1501 :	anton	1.1	[THEN]
1502 :
1503 :	jwilke	1.106	: S! ( n addr -- ) >r s>d r> DS! ;
1504 :			: S@ ( addr -- n ) DS@ d>s ;
1505 :
1506 :	jwilke	1.67	: taddr>region ( taddr -- region \| 0 )
1507 :			\G finds for a target-address the correct region
1508 :			\G returns 0 if taddr is not in range of a target memory region
1509 :			region-link
1510 :			BEGIN @ dup
1511 :			WHILE dup >r
1512 :			0 >rlink - >r
1513 :			r@ >rlen @
1514 :			IF dup r@ borders within
1515 :			IF r> r> drop nip EXIT THEN
1516 :			THEN
1517 :			r> drop
1518 :			r>
1519 :			REPEAT
1520 :			2drop 0 ;
1521 :
1522 :	jwilke	1.103	: taddr>region-abort ( taddr -- region \| 0 )
1523 :			dup taddr>region dup 0=
1524 :			IF drop cr ." Wrong address: " .addr
1525 :			-1 ABORT" Address out of range!"
1526 :			THEN nip ;
1527 :
1528 :	jwilke	1.67	: (>regionimage) ( taddr -- 'taddr )
1529 :			dup
1530 :			\ find region we want to address
1531 :	jwilke	1.103	taddr>region-abort
1532 :	jwilke	1.67	>r
1533 :			\ calculate offset in region
1534 :			r@ >rstart @ -
1535 :			\ add regions real address in our memory
1536 :			r> >rmem @ + ;
1537 :
1538 :	jwilke	1.103	: (>regionbm) ( taddr -- 'taddr bitmaskbaseaddr )
1539 :			dup
1540 :			\ find region we want to address
1541 :			taddr>region-abort
1542 :			>r
1543 :			\ calculate offset in region
1544 :			r@ >rstart @ -
1545 :			\ add regions real address in our memory
1546 :			r> >rbm @ ;
1547 :
1548 :			: (>regiontype) ( taddr -- 'taddr )
1549 :			dup
1550 :			\ find region we want to address
1551 :			taddr>region-abort
1552 :			>r
1553 :			\ calculate offset in region
1554 :			r@ >rstart @ - tcell / cells
1555 :			\ add regions real address in our memory
1556 :			r> >rtype @ + ;
1557 :
1558 :	anton	1.1	\ Bit string manipulation 06oct92py
1559 :			\ 9may93jaw
1560 :			CREATE Bittable 80 c, 40 c, 20 c, 10 c, 8 c, 4 c, 2 c, 1 c,
1561 :			: bits ( n -- n ) chars Bittable + c@ ;
1562 :
1563 :			: >bit ( addr n -- c-addr mask ) 8 /mod rot + swap bits ;
1564 :			: +bit ( addr n -- ) >bit over c@ or swap c! ;
1565 :	pazsan	1.4	: -bit ( addr n -- ) >bit invert over c@ and swap c! ;
1566 :	jwilke	1.67
1567 :	jwilke	1.103	: @relbit ( taddr -- f ) (>regionbm) swap cell/ >bit swap c@ and ;
1568 :
1569 :	jwilke	1.84	: (relon) ( taddr -- )
1570 :			[ [IFDEF] fd-relocation-table ]
1571 :			s" +" fd-relocation-table write-file throw
1572 :			dup s>d <# #s #> fd-relocation-table write-line throw
1573 :			[ [THEN] ]
1574 :	jwilke	1.103	(>regionbm) swap cell/ +bit ;
1575 :	jwilke	1.84
1576 :			: (reloff) ( taddr -- )
1577 :			[ [IFDEF] fd-relocation-table ]
1578 :			s" -" fd-relocation-table write-file throw
1579 :			dup s>d <# #s #> fd-relocation-table write-line throw
1580 :			[ [THEN] ]
1581 :	jwilke	1.103	(>regionbm) swap cell/ -bit ;
1582 :	jwilke	1.67
1583 :			: (>image) ( taddr -- absaddr ) image @ + ;
1584 :
1585 :			DEFER >image
1586 :			DEFER relon
1587 :			DEFER reloff
1588 :			DEFER correcter
1589 :
1590 :			T has? relocate H
1591 :			[IF]
1592 :			' (relon) IS relon
1593 :			' (reloff) IS reloff
1594 :	jwilke	1.103	' (>regionimage) IS >image
1595 :	jwilke	1.67	[ELSE]
1596 :			' drop IS relon
1597 :			' drop IS reloff
1598 :	jwilke	1.68	' (>regionimage) IS >image
1599 :	jwilke	1.67	[THEN]
1600 :	anton	1.1
1601 :			\ Target memory access 06oct92py
1602 :
1603 :			: align+ ( taddr -- rest )
1604 :	anton	1.48	tcell tuck 1- and - [ tcell 1- ] Literal and ;
1605 :	anton	1.22	: cfalign+ ( taddr -- rest )
1606 :	pazsan	1.39	\ see kernel.fs:cfaligned
1607 :	pazsan	1.43	/maxalign tuck 1- and - [ /maxalign 1- ] Literal and ;
1608 :	anton	1.1
1609 :			>TARGET
1610 :			: aligned ( taddr -- ta-addr ) dup align+ + ;
1611 :			\ assumes cell alignment granularity (as GNU C)
1612 :
1613 :	anton	1.22	: cfaligned ( taddr1 -- taddr2 )
1614 :	pazsan	1.39	\ see kernel.fs
1615 :	anton	1.22	dup cfalign+ + ;
1616 :
1617 :	jwilke	1.52	: @ ( taddr -- w ) >image S@ ;
1618 :			: ! ( w taddr -- ) >image S! ;
1619 :	pazsan	1.57	: c@ ( taddr -- char ) >image Sc@ ;
1620 :			: c! ( char taddr -- ) >image Sc! ;
1621 :	anton	1.7	: 2@ ( taddr -- x1 x2 ) T dup cell+ @ swap @ H ;
1622 :	pazsan	1.82	: 2! ( x1 x2 taddr -- ) T tuck ! cell+ ! H ;
1623 :	anton	1.1
1624 :			\ Target compilation primitives 06oct92py
1625 :			\ included A! 16may93jaw
1626 :
1627 :			: here ( -- there ) there ;
1628 :			: allot ( n -- ) tdp +! ;
1629 :	jwilke	1.78	: , ( w -- ) T here H tcell T allot ! H ;
1630 :			: c, ( char -- ) T here H tchar T allot c! H ;
1631 :			: align ( -- ) T here H align+ 0 ?DO bl T c, H tchar +LOOP ;
1632 :	anton	1.22	: cfalign ( -- )
1633 :	jwilke	1.78	T here H cfalign+ 0 ?DO bl T c, H tchar +LOOP ;
1634 :	anton	1.1
1635 :	jwilke	1.71	: >address dup 0>= IF tbyte / THEN ; \ ?? jaw
1636 :	pazsan	1.59	: A! swap >address swap dup relon T ! H ;
1637 :			: A, ( w -- ) >address T here H relon T , H ;
1638 :	anton	1.1
1639 :	jwilke	1.103
1640 :			\ \ -------------------- Host/Target copy etc. 29aug01jaw
1641 :
1642 :
1643 :			>CROSS
1644 :
1645 :	jwilke	1.107	: TD! >image DS! ;
1646 :			: TD@ >image DS@ ;
1647 :
1648 :	jwilke	1.103	: th-count ( taddr -- host-addr len )
1649 :			\G returns host address of target string
1650 :			assert1( tbyte 1 = )
1651 :			dup X c@ swap X char+ >image swap ;
1652 :
1653 :			: ht-move ( haddr taddr len -- )
1654 :			\G moves data from host-addr to destination in target-addr
1655 :			\G character by character
1656 :			swap -rot bounds ?DO I c@ over X c! X char+ LOOP drop ;
1657 :
1658 :			2Variable last-string
1659 :
1660 :			: ht-string, ( addr count -- )
1661 :			dup there swap last-string 2!
1662 :			dup T c, H bounds ?DO I c@ T c, H LOOP ;
1663 :
1664 :			>TARGET
1665 :
1666 :			: count dup X c@ swap X char+ swap ;
1667 :	jwilke	1.110
1668 :			: on -1 -1 rot TD! ;
1669 :	jwilke	1.103	: off T 0 swap ! H ;
1670 :	anton	1.1
1671 :	jwilke	1.107	: tcmove ( source dest len -- )
1672 :			\G cmove in target memory
1673 :			tchar * bounds
1674 :			?DO dup T c@ H I T c! H 1+
1675 :			tchar +LOOP drop ;
1676 :
1677 :			: td, ( d -- )
1678 :			\G Store a host value as one cell into the target
1679 :			there tcell X allot TD! ;
1680 :
1681 :			\ \ Load Assembler
1682 :
1683 :			>TARGET
1684 :			H also Forth definitions
1685 :
1686 :			\ FIXME: should we include the assembler really in the forth
1687 :			\ dictionary?!?!?!? This conflicts with the existing assembler
1688 :			\ of the host forth system!!
1689 :			[IFDEF] asm-include asm-include [THEN] hex
1690 :
1691 :			previous
1692 :
1693 :
1694 :	jwilke	1.52	>CROSS
1695 :
1696 :	jwilke	1.103	: (cc) T a, H ; ' (cc) plugin-of colon,
1697 :	jwilke	1.105	: (prim) T a, H ; ' (prim) plugin-of prim,
1698 :	jwilke	1.52
1699 :	jwilke	1.105	: (cr) >tempdp ]comp prim, comp[ tempdp> ; ' (cr) plugin-of colon-resolve
1700 :	jwilke	1.103	: (ar) T ! H ; ' (ar) plugin-of addr-resolve
1701 :	pazsan	1.54	: (dr) ( ghost res-pnt target-addr addr )
1702 :			>tempdp drop over
1703 :			dup >magic @ <do:> =
1704 :			IF doer,
1705 :			ELSE dodoes,
1706 :			THEN
1707 :	jwilke	1.103	tempdp> ; ' (dr) plugin-of doer-resolve
1708 :	pazsan	1.54
1709 :			: (cm) ( -- addr )
1710 :			T here align H
1711 :	jwilke	1.109	-1 prim, ; ' (cm) plugin-of colonmark,
1712 :	anton	1.1
1713 :	jwilke	1.52	>TARGET
1714 :	jwilke	1.105	: compile, ( xt -- )
1715 :	jwilke	1.107	dup xt>ghost >comp @ EXECUTE ;
1716 :	jwilke	1.52	>CROSS
1717 :	anton	1.1
1718 :	jwilke	1.102	\ resolve structure
1719 :
1720 :			: >next ; \ link to next field
1721 :			: >tag cell+ ; \ indecates type of reference: 0: call, 1: address, 2: doer
1722 :			: >taddr cell+ cell+ ;
1723 :			: >ghost 3 cells + ;
1724 :			: >file 4 cells + ;
1725 :			: >line 5 cells + ;
1726 :
1727 :			: (refered) ( ghost addr tag -- )
1728 :			\G creates a reference to ghost at address taddr
1729 :	jwilke	1.103	>space
1730 :			rot >link linked
1731 :	jwilke	1.102	( taddr tag ) ,
1732 :			( taddr ) ,
1733 :			last-header-ghost @ ,
1734 :			loadfile ,
1735 :			sourceline# ,
1736 :	jwilke	1.103	space>
1737 :	jwilke	1.102	;
1738 :
1739 :	jwilke	1.52	: refered ( ghost tag -- )
1740 :	jwilke	1.53	\G creates a resolve structure
1741 :	pazsan	1.54	T here aligned H swap (refered)
1742 :			;
1743 :
1744 :			: killref ( addr ghost -- )
1745 :			\G kills a forward reference to ghost at position addr
1746 :			\G this is used to eleminate a :dovar refence after making a DOES>
1747 :			dup >magic @ <fwd> <> IF 2drop EXIT THEN
1748 :			swap >r >link
1749 :			BEGIN dup @ dup ( addr last this )
1750 :			WHILE dup >taddr @ r@ =
1751 :			IF @ over !
1752 :			ELSE nip THEN
1753 :			REPEAT rdrop 2drop
1754 :	jwilke	1.53	;
1755 :	anton	1.48
1756 :	jwilke	1.52	Defer resolve-warning
1757 :	anton	1.1
1758 :	jwilke	1.52	: reswarn-test ( ghost res-struct -- ghost res-struct )
1759 :	jwilke	1.78	over cr ." Resolving " .ghost dup ." in " >ghost @ .ghost ;
1760 :	anton	1.1
1761 :	jwilke	1.52	: reswarn-forward ( ghost res-struct -- ghost res-struct )
1762 :	jwilke	1.78	over warnhead .ghost dup ." is referenced in "
1763 :			>ghost @ .ghost ;
1764 :	anton	1.1
1765 :	jwilke	1.52	\ ' reswarn-test IS resolve-warning
1766 :
1767 :	anton	1.1	\ resolve 14oct92py
1768 :
1769 :	pazsan	1.54	: resolve-loop ( ghost resolve-list tcfa -- )
1770 :			>r
1771 :			BEGIN dup WHILE
1772 :			\ dup >tag @ 2 = IF reswarn-forward THEN
1773 :			resolve-warning
1774 :			r@ over >taddr @
1775 :			2 pick >tag @
1776 :			CASE 0 OF colon-resolve ENDOF
1777 :			1 OF addr-resolve ENDOF
1778 :			2 OF doer-resolve ENDOF
1779 :			ENDCASE
1780 :			@ \ next list element
1781 :			REPEAT 2drop rdrop
1782 :			;
1783 :	jwilke	1.52
1784 :			\ : resolve-loop ( ghost tcfa -- ghost tcfa )
1785 :			\ >r dup >link @
1786 :			\ BEGIN dup WHILE dup T @ H r@ rot T ! H REPEAT drop r> ;
1787 :	anton	1.1
1788 :			\ exists 9may93jaw
1789 :
1790 :	jwilke	1.103	: exists ( ghost tcfa -- )
1791 :			\G print warning and set new target link in ghost
1792 :			swap exists-warning
1793 :			>link ! ;
1794 :	jwilke	1.52
1795 :	jwilke	1.105	: colon-resolved ( ghost -- )
1796 :			>link @ colon, ; \ compile-call
1797 :
1798 :			: prim-resolved ( ghost -- )
1799 :			>link @ prim, ;
1800 :
1801 :	jwilke	1.110	\ FIXME: not used currently
1802 :	jwilke	1.105	: does-resolved ( ghost -- )
1803 :			dup g>body alit, >do:ghost @ g>body colon, ;
1804 :
1805 :			: (is-forward) ( ghost -- )
1806 :			colonmark, 0 (refered) ; \ compile space for call
1807 :			' (is-forward) IS is-forward
1808 :	anton	1.1
1809 :			: resolve ( ghost tcfa -- )
1810 :	pazsan	1.54	\G resolve referencies to ghost with tcfa
1811 :	jwilke	1.103	dup taddr>region 0<> IF
1812 :			2dup (>regiontype) define-addr-struct addr-xt-ghost
1813 :
1814 :			\ we define new address only if empty
1815 :	jwilke	1.105	\ this is for not to take over the alias ghost
1816 :			\ (different ghost, but identical xt)
1817 :	jwilke	1.103	\ but the very first that really defines it
1818 :			dup @ 0= IF ! ELSE 2drop THEN
1819 :			THEN
1820 :
1821 :			\ is ghost resolved?, second resolve means another
1822 :			\ definition with the same name
1823 :	jwilke	1.75	over undefined? 0= IF exists EXIT THEN
1824 :	pazsan	1.54	\ get linked-list
1825 :			swap >r r@ >link @ swap \ ( list tcfa R: ghost )
1826 :			\ mark ghost as resolved
1827 :			dup r@ >link ! <res> r@ >magic !
1828 :	jwilke	1.105	r@ >comp @ ['] is-forward = IF
1829 :			['] prim-resolved r@ >comp ! THEN
1830 :	pazsan	1.54	\ loop through forward referencies
1831 :			r> -rot
1832 :			comp-state @ >r Resolving comp-state !
1833 :			resolve-loop
1834 :			r> comp-state !
1835 :
1836 :			['] noop IS resolve-warning
1837 :	jwilke	1.52	;
1838 :	anton	1.1
1839 :			\ gexecute ghost, 01nov92py
1840 :
1841 :	jwilke	1.103	: (gexecute) ( ghost -- )
1842 :	jwilke	1.105	dup >comp @ EXECUTE ;
1843 :	jwilke	1.103
1844 :			: gexecute ( ghost -- )
1845 :	jwilke	1.110	dup >magic @ <imm> = IF -1 ABORT" CROSS: gexecute on immediate word" THEN
1846 :	jwilke	1.103	(gexecute) ;
1847 :	jwilke	1.52
1848 :			: addr, ( ghost -- )
1849 :	jwilke	1.105	dup forward? IF 1 refered 0 T a, H ELSE >link @ T a, H THEN ;
1850 :	jwilke	1.52
1851 :	anton	1.1	\ .unresolved 11may93jaw
1852 :
1853 :			variable ResolveFlag
1854 :
1855 :			\ ?touched 11may93jaw
1856 :
1857 :	jwilke	1.52	: ?touched ( ghost -- flag ) dup forward? swap >link @
1858 :	anton	1.1	0 <> and ;
1859 :
1860 :	jwilke	1.53	: .forwarddefs ( ghost -- )
1861 :	jwilke	1.103	." appeared in:"
1862 :			>link
1863 :			BEGIN @ dup
1864 :			WHILE cr 5 spaces
1865 :			dup >ghost @ .ghost
1866 :			." file " dup >file @ ?dup IF count type ELSE ." CON" THEN
1867 :			." line " dup >line @ .dec
1868 :			REPEAT
1869 :			drop ;
1870 :
1871 :			: ?resolved ( ghost -- )
1872 :			dup ?touched
1873 :			IF ResolveFlag on
1874 :			dup cr .ghost .forwarddefs
1875 :	jwilke	1.53	ELSE drop
1876 :			THEN ;
1877 :	anton	1.1
1878 :			: .unresolved ( -- )
1879 :			ResolveFlag off cr ." Unresolved: "
1880 :	jwilke	1.103	ghost-list
1881 :	anton	1.1	BEGIN @ dup
1882 :			WHILE dup ?resolved
1883 :	anton	1.10	REPEAT drop ResolveFlag @
1884 :			IF
1885 :	anton	1.48	-1 abort" Unresolved words!"
1886 :	anton	1.10	ELSE
1887 :			." Nothing!"
1888 :			THEN
1889 :			cr ;
1890 :	anton	1.1
1891 :	jwilke	1.52	: .stats
1892 :			base @ >r decimal
1893 :			cr ." named Headers: " headers-named @ .
1894 :			r> base ! ;
1895 :
1896 :	jwilke	1.79	>MINIMAL
1897 :
1898 :			: .unresolved .unresolved ;
1899 :
1900 :	anton	1.1	>CROSS
1901 :			\ Header states 12dec92py
1902 :
1903 :	jwilke	1.102	\ : flag! ( 8b -- ) tlast @ dup >r T c@ xor r> c! H ;
1904 :	pazsan	1.90	bigendian [IF] 0 [ELSE] tcell 1- [THEN] Constant flag+
1905 :			: flag! ( w -- ) tlast @ flag+ + dup >r T c@ xor r> c! H ;
1906 :	anton	1.1
1907 :			VARIABLE ^imm
1908 :
1909 :	jwilke	1.105	\ !! should be target wordsize specific
1910 :			$80 constant alias-mask
1911 :			$40 constant immediate-mask
1912 :			$20 constant restrict-mask
1913 :
1914 :	anton	1.1	>TARGET
1915 :	jwilke	1.105	: immediate immediate-mask flag!
1916 :	pazsan	1.18	^imm @ @ dup <imm> = IF drop EXIT THEN
1917 :	anton	1.1	<res> <> ABORT" CROSS: Cannot immediate a unresolved word"
1918 :			<imm> ^imm @ ! ;
1919 :	jwilke	1.105	: restrict restrict-mask flag! ;
1920 :	jwilke	1.52
1921 :	pazsan	1.54	: isdoer
1922 :			\G define a forth word as doer, this makes obviously only sence on
1923 :			\G forth processors such as the PSC1000
1924 :			<do:> last-header-ghost @ >magic ! ;
1925 :	anton	1.1	>CROSS
1926 :
1927 :			\ Target Header Creation 01nov92py
1928 :
1929 :	jwilke	1.103	: ht-lstring, ( addr count -- )
1930 :	jwilke	1.102	dup T , H bounds ?DO I c@ T c, H LOOP ;
1931 :
1932 :	jwilke	1.103	>TARGET
1933 :			: name, ( "name" -- ) bl word count ht-lstring, X cfalign ;
1934 :	anton	1.1	: view, ( -- ) ( dummy ) ;
1935 :	jwilke	1.52	>CROSS
1936 :	anton	1.1
1937 :	pazsan	1.25	\ Target Document Creation (goes to crossdoc.fd) 05jul95py
1938 :
1939 :	pazsan	1.55	s" ./doc/crossdoc.fd" r/w create-file throw value doc-file-id
1940 :	pazsan	1.25	\ contains the file-id of the documentation file
1941 :
1942 :	pazsan	1.40	: T-\G ( -- )
1943 :	pazsan	1.25	source >in @ /string doc-file-id write-line throw
1944 :	pazsan	1.40	postpone \ ;
1945 :	pazsan	1.25
1946 :	pazsan	1.39	Variable to-doc to-doc on
1947 :	pazsan	1.25
1948 :			: cross-doc-entry ( -- )
1949 :			to-doc @ tlast @ 0<> and \ not an anonymous (i.e. noname) header
1950 :			IF
1951 :			s" " doc-file-id write-line throw
1952 :			s" make-doc " doc-file-id write-file throw
1953 :	jwilke	1.102
1954 :	jwilke	1.105	Last-Header-Ghost @ >ghostname doc-file-id write-file throw
1955 :	pazsan	1.25	>in @
1956 :			[char] ( parse 2drop
1957 :			[char] ) parse doc-file-id write-file throw
1958 :			s" )" doc-file-id write-file throw
1959 :			[char] \ parse 2drop
1960 :	pazsan	1.40	T-\G
1961 :	pazsan	1.25	>in !
1962 :	pazsan	1.39	THEN ;
1963 :	pazsan	1.25
1964 :	pazsan	1.28	\ Target TAGS creation
1965 :
1966 :	pazsan	1.39	s" kernel.TAGS" r/w create-file throw value tag-file-id
1967 :	pazsan	1.116	s" kernel.tags" r/w create-file throw value vi-tag-file-id
1968 :	pazsan	1.28	\ contains the file-id of the tags file
1969 :
1970 :			Create tag-beg 2 c, 7F c, bl c,
1971 :			Create tag-end 2 c, bl c, 01 c,
1972 :			Create tag-bof 1 c, 0C c,
1973 :	pazsan	1.116	Create tag-tab 1 c, 09 c,
1974 :	pazsan	1.28
1975 :			2variable last-loadfilename 0 0 last-loadfilename 2!
1976 :
1977 :			: put-load-file-name ( -- )
1978 :	jwilke	1.77	sourcefilename last-loadfilename 2@ d<>
1979 :	pazsan	1.28	IF
1980 :			tag-bof count tag-file-id write-line throw
1981 :	anton	1.31	sourcefilename 2dup
1982 :	pazsan	1.28	tag-file-id write-file throw
1983 :			last-loadfilename 2!
1984 :			s" ,0" tag-file-id write-line throw
1985 :			THEN ;
1986 :
1987 :	pazsan	1.116	: cross-gnu-tag-entry ( -- )
1988 :	pazsan	1.28	tlast @ 0<> \ not an anonymous (i.e. noname) header
1989 :			IF
1990 :			put-load-file-name
1991 :			source >in @ min tag-file-id write-file throw
1992 :			tag-beg count tag-file-id write-file throw
1993 :	pazsan	1.116	Last-Header-Ghost @ >ghostname tag-file-id write-file throw
1994 :	pazsan	1.28	tag-end count tag-file-id write-file throw
1995 :	anton	1.31	base @ decimal sourceline# 0 <# #s #> tag-file-id write-file throw
1996 :	pazsan	1.28	\ >in @ 0 <# #s [char] , hold #> tag-file-id write-line throw
1997 :			s" ,0" tag-file-id write-line throw
1998 :			base !
1999 :			THEN ;
2000 :	pazsan	1.116
2001 :			: cross-vi-tag-entry ( -- )
2002 :			tlast @ 0<> \ not an anonymous (i.e. noname) header
2003 :			IF
2004 :			sourcefilename vi-tag-file-id write-file throw
2005 :			tag-tab count vi-tag-file-id write-file throw
2006 :			Last-Header-Ghost @ >ghostname vi-tag-file-id write-file throw
2007 :			tag-tab count vi-tag-file-id write-file throw
2008 :			s" /^" vi-tag-file-id write-file throw
2009 :			source vi-tag-file-id write-file throw
2010 :			s" $/" vi-tag-file-id write-line throw
2011 :			THEN ;
2012 :
2013 :			: cross-tag-entry ( -- )
2014 :			cross-gnu-tag-entry
2015 :			cross-vi-tag-entry ;
2016 :	pazsan	1.28
2017 :	pazsan	1.43	\ Check for words
2018 :
2019 :			Defer skip? ' false IS skip?
2020 :
2021 :	jwilke	1.103	: skipdef ( "name" -- )
2022 :	jwilke	1.79	\G skip definition of an undefined word in undef-words and
2023 :			\G all-words mode
2024 :	jwilke	1.103	Ghost dup forward?
2025 :	jwilke	1.75	IF >magic <skip> swap !
2026 :			ELSE drop THEN ;
2027 :
2028 :	jwilke	1.103	: tdefined? ( "name" -- flag )
2029 :			Ghost undefined? 0= ;
2030 :	jwilke	1.75
2031 :	jwilke	1.103	: defined2? ( "name" -- flag )
2032 :	jwilke	1.75	\G return true for anything else than forward, even for <skip>
2033 :			\G that's what we want
2034 :	jwilke	1.103	Ghost forward? 0= ;
2035 :	pazsan	1.43
2036 :	jwilke	1.103	: forced? ( "name" -- flag )
2037 :	jwilke	1.79	\G return ture if it is a foreced skip with defskip
2038 :	jwilke	1.103	Ghost >magic @ <skip> = ;
2039 :	jwilke	1.79
2040 :	pazsan	1.43	: needed? ( -- flag ) \ name
2041 :	anton	1.48	\G returns a false flag when
2042 :			\G a word is not defined
2043 :			\G a forward reference exists
2044 :			\G so the definition is not skipped!
2045 :			bl word gfind
2046 :	jwilke	1.75	IF dup undefined?
2047 :	anton	1.48	nip
2048 :			0=
2049 :			ELSE drop true THEN ;
2050 :	pazsan	1.43
2051 :	pazsan	1.44	: doer? ( -- flag ) \ name
2052 :	jwilke	1.103	Ghost >magic @ <do:> = ;
2053 :	pazsan	1.44
2054 :	pazsan	1.43	: skip-defs ( -- )
2055 :			BEGIN refill WHILE source -trailing nip 0= UNTIL THEN ;
2056 :
2057 :	pazsan	1.28	\ Target header creation
2058 :
2059 :	pazsan	1.54	Variable NoHeaderFlag
2060 :			NoHeaderFlag off
2061 :	anton	1.1
2062 :	pazsan	1.54	: 0.r ( n1 n2 -- )
2063 :			base @ >r hex
2064 :			0 swap <# 0 ?DO # LOOP #> type
2065 :			r> base ! ;
2066 :	jwilke	1.84
2067 :			: .sym ( adr len -- )
2068 :			\G escapes / and \ to produce sed output
2069 :	jwilke	1.52	bounds
2070 :			DO I c@ dup
2071 :	jwilke	1.77	CASE [char] / OF drop ." \/" ENDOF
2072 :			[char] \ OF drop ." \\" ENDOF
2073 :	jwilke	1.52	dup OF emit ENDOF
2074 :			ENDCASE
2075 :	pazsan	1.54	LOOP ;
2076 :	jwilke	1.52
2077 :	jwilke	1.103	Defer setup-execution-semantics
2078 :			0 Value lastghost
2079 :
2080 :			: (THeader ( "name" -- ghost )
2081 :	pazsan	1.54	\ >in @ bl word count type 2 spaces >in !
2082 :			\ wordheaders will always be compiled to rom
2083 :			switchrom
2084 :			\ build header in target
2085 :			NoHeaderFlag @
2086 :			IF NoHeaderFlag off
2087 :			ELSE
2088 :			T align H view,
2089 :	jwilke	1.78	tlast @ dup 0> IF tcell - THEN T A, H there tlast !
2090 :	pazsan	1.54	1 headers-named +! \ Statistic
2091 :			>in @ T name, H >in !
2092 :			THEN
2093 :			T cfalign here H tlastcfa !
2094 :	jwilke	1.84	\ Old Symbol table sed-script
2095 :	pazsan	1.54	\ >in @ cr ." sym:s/CFA=" there 4 0.r ." /" bl word count .sym ." /g" cr >in !
2096 :	jwilke	1.103	HeaderGhost
2097 :	jwilke	1.84	\ output symbol table to extra file
2098 :			[ [IFDEF] fd-symbol-table ]
2099 :			base @ hex there s>d <# 8 0 DO # LOOP #> fd-symbol-table write-file throw base !
2100 :			s" :" fd-symbol-table write-file throw
2101 :			dup >ghostname fd-symbol-table write-line throw
2102 :			[ [THEN] ]
2103 :	jwilke	1.103	dup Last-Header-Ghost ! dup to lastghost
2104 :	pazsan	1.54	dup >magic ^imm ! \ a pointer for immediate
2105 :	jwilke	1.105	alias-mask flag!
2106 :	jwilke	1.103	cross-doc-entry cross-tag-entry
2107 :			setup-execution-semantics
2108 :			;
2109 :	anton	1.1
2110 :	jwilke	1.52	\ this is the resolver information from ":"
2111 :			\ resolving is done by ";"
2112 :	jwilke	1.103	Variable ;Resolve 1 cells allot
2113 :
2114 :			: hereresolve ( ghost -- )
2115 :			there resolve 0 ;Resolve ! ;
2116 :	anton	1.1
2117 :	pazsan	1.11	: Theader ( "name" -- ghost )
2118 :	jwilke	1.103	(THeader dup hereresolve ;
2119 :
2120 :			Variable aprim-nr -20 aprim-nr !
2121 :
2122 :			: copy-execution-semantics ( ghost-from ghost-dest -- )
2123 :			>r
2124 :			dup >exec @ r@ >exec !
2125 :			dup >exec2 @ r@ >exec2 !
2126 :			dup >exec-compile @ r@ >exec-compile !
2127 :			dup >ghost-xt @ r@ >ghost-xt !
2128 :			dup >created @ r@ >created !
2129 :			rdrop drop ;
2130 :	anton	1.1
2131 :			>TARGET
2132 :	jwilke	1.103
2133 :	anton	1.1	: Alias ( cfa -- ) \ name
2134 :	jwilke	1.103	>in @ skip? IF 2drop EXIT THEN >in !
2135 :			(THeader ( S xt ghost )
2136 :	jwilke	1.105	2dup swap xt>ghost swap copy-execution-semantics
2137 :			over resolve T A, H alias-mask flag! ;
2138 :	jwilke	1.103
2139 :			Variable last-prim-ghost
2140 :			0 last-prim-ghost !
2141 :
2142 :			: asmprimname, ( ghost -- : name )
2143 :			dup last-prim-ghost !
2144 :			>r
2145 :			here bl word count string, r@ >asm-name !
2146 :			aprim-nr @ r> >asm-dummyaddr ! ;
2147 :
2148 :			Defer setup-prim-semantics
2149 :
2150 :	jwilke	1.112	: mapprim ( "forthname" "asmlabel" -- )
2151 :	jwilke	1.103	THeader -1 aprim-nr +! aprim-nr @ T A, H
2152 :			asmprimname,
2153 :			setup-prim-semantics ;
2154 :
2155 :	jwilke	1.112	: mapprim: ( "forthname" "asmlabel" -- )
2156 :	jwilke	1.103	-1 aprim-nr +! aprim-nr @
2157 :			Ghost tuck swap resolve <do:> swap tuck >magic !
2158 :			asmprimname, ;
2159 :
2160 :	pazsan	1.42	: Alias: ( cfa -- ) \ name
2161 :	jwilke	1.103	>in @ skip? IF 2drop EXIT THEN >in !
2162 :			dup 0< s" prims" T $has? H 0= and
2163 :			IF
2164 :			.sourcepos ." needs doer: " >in @ bl word count type >in ! cr
2165 :			THEN
2166 :			Ghost tuck swap resolve <do:> swap >magic ! ;
2167 :	pazsan	1.64
2168 :			Variable prim#
2169 :			: first-primitive ( n -- ) prim# ! ;
2170 :			: Primitive ( -- ) \ name
2171 :	jwilke	1.103	>in @ skip? IF 2drop EXIT THEN >in !
2172 :			dup 0< s" prims" T $has? H 0= and
2173 :			IF
2174 :			.sourcepos ." needs prim: " >in @ bl word count type >in ! cr
2175 :			THEN
2176 :			prim# @ (THeader ( S xt ghost )
2177 :	jwilke	1.105	dup >ghost-flags <primitive> set-flag
2178 :			over resolve T A, H alias-mask flag!
2179 :	jwilke	1.103	-1 prim# +! ;
2180 :	anton	1.1	>CROSS
2181 :
2182 :			\ Conditionals and Comments 11may93jaw
2183 :
2184 :	jwilke	1.103	\G saves the existing cond action, this is used for redefining in
2185 :			\G instant
2186 :			Variable cond-xt-old
2187 :
2188 :			: cond-target ( -- )
2189 :			\G Compiles semantic of redefined cond into new one
2190 :			cond-xt-old @ compile, ; immediate restrict
2191 :
2192 :	anton	1.1	: ;Cond
2193 :			postpone ;
2194 :			swap ! ; immediate
2195 :
2196 :	jwilke	1.103	: Cond: ( "name" -- )
2197 :			\g defines a conditional or another word that must
2198 :			\g be executed directly while compiling
2199 :			\g these words have no interpretative semantics by default
2200 :			Ghost
2201 :			>exec-compile
2202 :			dup @ cond-xt-old !
2203 :	anton	1.1	:NONAME ;
2204 :
2205 :
2206 :			: Comment ( -- )
2207 :	jwilke	1.103	>in @ Ghost swap >in ! ' swap
2208 :			2dup >exec-compile ! >exec ! ;
2209 :	anton	1.1
2210 :			Comment ( Comment \
2211 :
2212 :			\ compile 10may93jaw
2213 :
2214 :	jwilke	1.103	: compile ( "name" -- ) \ name
2215 :	jwilke	1.115	findghost
2216 :	jwilke	1.103	dup >exec-compile @ ?dup
2217 :			IF nip compile,
2218 :			ELSE postpone literal postpone gexecute THEN ; immediate restrict
2219 :
2220 :	jwilke	1.52	>TARGET
2221 :
2222 :	jwilke	1.105	: ' ( -- xt )
2223 :			\G returns the target-cfa of a ghost
2224 :	jwilke	1.52	bl word gfind 0= ABORT" CROSS: Ghost don't exists"
2225 :	jwilke	1.105	g>xt ;
2226 :	jwilke	1.52
2227 :	jwilke	1.103	\ FIXME: this works for the current use cases, but is not
2228 :			\ in all cases correct ;-)
2229 :			: comp' X ' 0 ;
2230 :
2231 :	jwilke	1.52	Cond: ['] T ' H alit, ;Cond
2232 :
2233 :			>CROSS
2234 :
2235 :			: [T']
2236 :			\ returns the target-cfa of a ghost, or compiles it as literal
2237 :	jwilke	1.115	postpone [G']
2238 :			state @ IF postpone g>xt ELSE g>xt THEN ; immediate
2239 :	pazsan	1.42
2240 :	jwilke	1.52	\ \ threading modell 13dec92py
2241 :			\ modularized 14jun97jaw
2242 :
2243 :	jwilke	1.106	T 2 cells H Value xt>body
2244 :	jwilke	1.52
2245 :	jwilke	1.103	: (>body) ( cfa -- pfa )
2246 :	jwilke	1.105	xt>body + ; ' (>body) plugin-of t>body
2247 :
2248 :			: fillcfa ( usedcells -- )
2249 :	jwilke	1.106	T cells H xt>body swap -
2250 :	jwilke	1.105	assert1( dup 0 >= )
2251 :			0 ?DO 0 X c, tchar +LOOP ;
2252 :	jwilke	1.52
2253 :	jwilke	1.103	: (doer,) ( ghost -- )
2254 :	jwilke	1.105	addr, 1 fillcfa ; ' (doer,) plugin-of doer,
2255 :	jwilke	1.52
2256 :	jwilke	1.105	: (docol,) ( -- ) [G'] :docol (doer,) ; ' (docol,) plugin-of docol,
2257 :	jwilke	1.52
2258 :			: (doprim,) ( -- )
2259 :	jwilke	1.105	there xt>body + ca>native T a, H 1 fillcfa ; ' (doprim,) plugin-of doprim,
2260 :	jwilke	1.52
2261 :			: (doeshandler,) ( -- )
2262 :	jwilke	1.105	T cfalign H compile :doesjump T 0 , H ; ' (doeshandler,) plugin-of doeshandler,
2263 :	jwilke	1.52
2264 :			: (dodoes,) ( does-action-ghost -- )
2265 :			]comp [G'] :dodoes gexecute comp[
2266 :			addr,
2267 :	jwilke	1.103	\ the relocator in the c engine, does not like the
2268 :			\ does-address to marked for relocation
2269 :			[ T e? ec H 0= [IF] ] T here H tcell - reloff [ [THEN] ]
2270 :	jwilke	1.105	2 fillcfa ; ' (dodoes,) plugin-of dodoes,
2271 :	jwilke	1.52
2272 :	jwilke	1.107	: (dlit,) ( n -- ) compile lit td, ; ' (dlit,) plugin-of dlit,
2273 :
2274 :			: (lit,) ( n -- ) s>d dlit, ; ' (lit,) plugin-of lit,
2275 :	jwilke	1.52
2276 :	jwilke	1.67	\ if we dont produce relocatable code alit, defaults to lit, jaw
2277 :	jwilke	1.84	\ this is just for convenience, so we don't have to define alit,
2278 :			\ seperately for embedded systems....
2279 :			T has? relocate H
2280 :	jwilke	1.67	[IF]
2281 :	jwilke	1.105	: (alit,) ( n -- ) compile lit T a, H ; ' (alit,) plugin-of alit,
2282 :	jwilke	1.67	[ELSE]
2283 :	jwilke	1.105	: (alit,) ( n -- ) lit, ; ' (alit,) plugin-of alit,
2284 :	jwilke	1.67	[THEN]
2285 :	jwilke	1.52
2286 :	jwilke	1.105	: (fini,) compile ;s ; ' (fini,) plugin-of fini,
2287 :	pazsan	1.42
2288 :	pazsan	1.43	[IFUNDEF] (code)
2289 :			Defer (code)
2290 :			Defer (end-code)
2291 :			[THEN]
2292 :
2293 :	anton	1.1	>TARGET
2294 :	pazsan	1.43	: Code
2295 :	jwilke	1.52	defempty?
2296 :	anton	1.48	(THeader there resolve
2297 :	jwilke	1.53	[ T e? prims H 0= [IF] T e? ITC H [ELSE] true [THEN] ] [IF]
2298 :	jwilke	1.52	doprim,
2299 :	anton	1.48	[THEN]
2300 :			depth (code) ;
2301 :	pazsan	1.43
2302 :			: Code:
2303 :	jwilke	1.52	defempty?
2304 :	jwilke	1.103	Ghost dup there ca>native resolve <do:> swap >magic !
2305 :	pazsan	1.43	depth (code) ;
2306 :
2307 :			: end-code
2308 :	jwilke	1.52	(end-code)
2309 :	pazsan	1.43	depth ?dup IF 1- <> ABORT" CROSS: Stack changed"
2310 :			ELSE true ABORT" CROSS: Stack empty" THEN
2311 :	jwilke	1.52	;
2312 :	anton	1.14
2313 :	anton	1.1	>CROSS
2314 :	jwilke	1.52
2315 :	anton	1.1	\ tLiteral 12dec92py
2316 :
2317 :			>TARGET
2318 :	pazsan	1.40	Cond: \G T-\G ;Cond
2319 :
2320 :	jwilke	1.105	Cond: Literal ( n -- ) lit, ;Cond
2321 :	jwilke	1.103	Cond: ALiteral ( n -- ) alit, ;Cond
2322 :	anton	1.1
2323 :			: Char ( "<char>" -- ) bl word char+ c@ ;
2324 :	jwilke	1.103	Cond: [Char] ( "<char>" -- ) Char lit, ;Cond
2325 :
2326 :	jwilke	1.104	tchar 1 = [IF]
2327 :	jwilke	1.110	Cond: chars ;Cond
2328 :	jwilke	1.104	[THEN]
2329 :	anton	1.1
2330 :	pazsan	1.43	\ some special literals 27jan97jaw
2331 :
2332 :	jwilke	1.52	\ !! Known Bug: Special Literals and plug-ins work only correct
2333 :	jwilke	1.102	\ on 16 and 32 Bit Targets and 32 Bit Hosts!
2334 :	jwilke	1.52
2335 :	jwilke	1.107	\ This section could be done with dlit, now. But first I need
2336 :			\ some test code JAW
2337 :
2338 :	pazsan	1.43	Cond: MAXU
2339 :	jwilke	1.102	tcell 1 cells u>
2340 :			IF compile lit tcell 0 ?DO FF T c, H LOOP
2341 :			ELSE ffffffff lit, THEN
2342 :	jwilke	1.52	;Cond
2343 :	pazsan	1.43
2344 :			Cond: MINI
2345 :	jwilke	1.102	tcell 1 cells u>
2346 :			IF compile lit bigendian
2347 :			IF 80 T c, H tcell 1 ?DO 0 T c, H LOOP
2348 :			ELSE tcell 1 ?DO 0 T c, H LOOP 80 T c, H
2349 :			THEN
2350 :			ELSE tcell 2 = IF 8000 ELSE 80000000 THEN lit, THEN
2351 :	jwilke	1.52	;Cond
2352 :	pazsan	1.43
2353 :			Cond: MAXI
2354 :	jwilke	1.102	tcell 1 cells u>
2355 :			IF compile lit bigendian
2356 :			IF 7F T c, H tcell 1 ?DO FF T c, H LOOP
2357 :			ELSE tcell 1 ?DO FF T c, H LOOP 7F T c, H
2358 :			THEN
2359 :			ELSE tcell 2 = IF 7fff ELSE 7fffffff THEN lit, THEN
2360 :	pazsan	1.43	;Cond
2361 :
2362 :	anton	1.1	>CROSS
2363 :	jwilke	1.115
2364 :	anton	1.1	\ Target compiling loop 12dec92py
2365 :			\ ">tib trick thrown out 10may93jaw
2366 :			\ number? defined at the top 11may93jaw
2367 :	jwilke	1.77	\ replaced >in by save-input
2368 :
2369 :			: discard 0 ?DO drop LOOP ;
2370 :	anton	1.1
2371 :			\ compiled word might leave items on stack!
2372 :	jwilke	1.77	: tcom ( x1 .. xn n name -- )
2373 :			\ dup count type space
2374 :	jwilke	1.103	gfind
2375 :			IF >r ( discard saved input state ) discard r>
2376 :			dup >exec-compile @ ?dup
2377 :			IF nip execute-exec-compile ELSE gexecute THEN
2378 :	jwilke	1.77	EXIT
2379 :			THEN
2380 :			number? dup
2381 :			IF 0> IF swap lit, THEN lit, discard
2382 :	jwilke	1.103	ELSE 2drop restore-input throw Ghost gexecute THEN ;
2383 :	anton	1.1
2384 :			\ : ; DOES> 13dec92py
2385 :			\ ] 9may93py/jaw
2386 :
2387 :	jwilke	1.115	>CROSS
2388 :
2389 :	jwilke	1.105	: compiling-state ( -- )
2390 :			\G set states to compililng
2391 :	pazsan	1.54	Compiling comp-state !
2392 :	jwilke	1.103	\ if we have a state in target, change it with the compile state
2393 :	jwilke	1.105	[G'] state dup undefined? 0=
2394 :			IF >ghost-xt @ execute X on ELSE drop THEN ;
2395 :
2396 :			: interpreting-state ( -- )
2397 :			\G set states to interpreting
2398 :			\ if target has a state variable, change it according to our state
2399 :			[G'] state dup undefined? 0=
2400 :			IF >ghost-xt @ execute X off ELSE drop THEN
2401 :			Interpreting comp-state ! ;
2402 :	jwilke	1.115
2403 :			>TARGET
2404 :	jwilke	1.105
2405 :			: ]
2406 :			compiling-state
2407 :	anton	1.1	BEGIN
2408 :	jwilke	1.77	BEGIN save-input bl word
2409 :			dup c@ 0= WHILE drop discard refill 0=
2410 :	anton	1.1	ABORT" CROSS: End of file while target compiling"
2411 :			REPEAT
2412 :			tcom
2413 :	jwilke	1.103	compiling? 0=
2414 :	anton	1.1	UNTIL ;
2415 :
2416 :			\ by the way: defining a second interpreter (a compiler-)loop
2417 :			\ is not allowed if a system should be ans conform
2418 :
2419 :	jwilke	1.110	: (:) ( ghost -- )
2420 :			\ common factor of : and :noname. Prepare ;Resolve and start definition
2421 :			;Resolve ! there ;Resolve cell+ !
2422 :			docol, ]comp colon-start depth T ] H ;
2423 :
2424 :	anton	1.1	: : ( -- colon-sys ) \ Name
2425 :	jwilke	1.52	defempty?
2426 :			constflag off \ don't let this flag work over colon defs
2427 :			\ just to go sure nothing unwanted happens
2428 :	pazsan	1.43	>in @ skip? IF drop skip-defs EXIT THEN >in !
2429 :	jwilke	1.110	(THeader (:) ;
2430 :	anton	1.1
2431 :	pazsan	1.37	: :noname ( -- colon-sys )
2432 :	jwilke	1.110	X cfalign there
2433 :			\ define a nameless ghost
2434 :			here ghostheader dup last-header-ghost ! dup to lastghost
2435 :			(:) ;
2436 :	pazsan	1.37
2437 :	jwilke	1.103	Cond: EXIT ( -- ) compile ;S ;Cond
2438 :	anton	1.6
2439 :			Cond: ?EXIT ( -- ) 1 abort" CROSS: using ?exit" ;Cond
2440 :	pazsan	1.2
2441 :	jwilke	1.52	>CROSS
2442 :			: LastXT ;Resolve @ 0= abort" CROSS: no definition for LastXT"
2443 :			;Resolve cell+ @ ;
2444 :
2445 :			>TARGET
2446 :
2447 :	jwilke	1.103	Cond: recurse ( -- ) Last-Header-Ghost @ gexecute ;Cond
2448 :	jwilke	1.52
2449 :	jwilke	1.103	Cond: ; ( -- )
2450 :	jwilke	1.105	depth ?dup
2451 :			IF 1- <> ABORT" CROSS: Stack changed"
2452 :			ELSE true ABORT" CROSS: Stack empty"
2453 :			THEN
2454 :			colon-end
2455 :			fini,
2456 :			comp[
2457 :			;Resolve @
2458 :			IF ;Resolve @ ;Resolve cell+ @ resolve
2459 :			['] colon-resolved ;Resolve @ >comp !
2460 :			THEN
2461 :			interpreting-state
2462 :			;Cond
2463 :
2464 :			Cond: [ ( -- ) interpreting-state ;Cond
2465 :	anton	1.1
2466 :			>CROSS
2467 :	pazsan	1.54
2468 :			Create GhostDummy ghostheader
2469 :			<res> GhostDummy >magic !
2470 :
2471 :	jwilke	1.52	: !does ( does-action -- )
2472 :			\ !! zusammenziehen und dodoes, machen!
2473 :	pazsan	1.54	tlastcfa @ [G'] :dovar killref
2474 :			\ tlastcfa @ dup there >r tdp ! compile :dodoes r> tdp ! T cell+ ! H ;
2475 :	jwilke	1.52	\ !! geht so nicht, da dodoes, ghost will!
2476 :	pazsan	1.54	GhostDummy >link ! GhostDummy
2477 :			tlastcfa @ >tempdp dodoes, tempdp> ;
2478 :	anton	1.1
2479 :	jwilke	1.103
2480 :			Defer instant-interpret-does>-hook
2481 :
2482 :			: resolve-does>-part ( -- )
2483 :			\ resolve words made by builders
2484 :	jwilke	1.105	Last-Header-Ghost @ >do:ghost @ ?dup
2485 :			IF there resolve
2486 :			\ TODO: set special DOES> resolver action here
2487 :			THEN ;
2488 :	jwilke	1.103
2489 :	anton	1.1	>TARGET
2490 :	jwilke	1.103	Cond: DOES>
2491 :			compile (does>) doeshandler,
2492 :			resolve-does>-part
2493 :	anton	1.1	;Cond
2494 :	jwilke	1.103
2495 :			: DOES> switchrom doeshandler, T here H !does
2496 :			instant-interpret-does>-hook
2497 :			depth T ] H ;
2498 :	anton	1.1
2499 :			>CROSS
2500 :	jwilke	1.108	\ Creation 01nov92py
2501 :	anton	1.1
2502 :			\ Builder 11may93jaw
2503 :
2504 :	jwilke	1.108	0 Value built
2505 :
2506 :	jwilke	1.105	: Builder ( Create-xt do-ghost "name" -- )
2507 :	jwilke	1.52	\ builds up a builder in current vocabulary
2508 :			\ create-xt is executed when word is interpreted
2509 :	jwilke	1.106	\ do:-xt is executed when the created word from builder is executed
2510 :	jwilke	1.105	\ for do:-xt an additional entry after the normal ghost-entrys is used
2511 :	jwilke	1.52
2512 :	jwilke	1.109	ghost to built
2513 :	jwilke	1.108	built >created @ 0= IF
2514 :			built >created on
2515 :			['] prim-resolved built >comp !
2516 :			THEN ;
2517 :	anton	1.1
2518 :	jwilke	1.52	: gdoes, ( ghost -- )
2519 :			\ makes the codefield for a word that is built
2520 :	jwilke	1.103	>do:ghost @ dup undefined? 0=
2521 :	jwilke	1.52	IF
2522 :	pazsan	1.42	dup >magic @ <do:> =
2523 :	pazsan	1.54	IF doer,
2524 :			ELSE dodoes,
2525 :			THEN
2526 :			EXIT
2527 :	jwilke	1.52	THEN
2528 :			\ compile :dodoes gexecute
2529 :			\ T here H tcell - reloff
2530 :	pazsan	1.54	2 refered
2531 :			0 fillcfa
2532 :			;
2533 :	anton	1.1
2534 :	jwilke	1.103	: takeover-x-semantics ( S constructor-ghost new-ghost -- )
2535 :	jwilke	1.105	\g stores execution semantic and compilation semantic in the built word
2536 :			swap >do:ghost @
2537 :	jwilke	1.110	\ we use the >exec2 field for the semantic of a created word,
2538 :			\ using exec or exec2 makes no difference for normal cross-compilation
2539 :			\ but is usefull for instant where the exec field is already
2540 :			\ defined (e.g. Vocabularies)
2541 :	jwilke	1.105	2dup >exec @ swap >exec2 !
2542 :			>comp @ swap >comp ! ;
2543 :	jwilke	1.103
2544 :	jwilke	1.52	: TCreate ( <name> -- )
2545 :			create-forward-warn
2546 :			IF ['] reswarn-forward IS resolve-warning THEN
2547 :	jwilke	1.103	executed-ghost @ (Theader
2548 :			dup >created on
2549 :			2dup takeover-x-semantics hereresolve gdoes, ;
2550 :	jwilke	1.52
2551 :			: RTCreate ( <name> -- )
2552 :			\ creates a new word with code-field in ram
2553 :			create-forward-warn
2554 :			IF ['] reswarn-forward IS resolve-warning THEN
2555 :			\ make Alias
2556 :	jwilke	1.103	executed-ghost @ (THeader
2557 :			dup >created on
2558 :			2dup takeover-x-semantics
2559 :	jwilke	1.105	there 0 T a, H alias-mask flag!
2560 :	jwilke	1.103	\ store poiter to code-field
2561 :	jwilke	1.52	switchram T cfalign H
2562 :			there swap T ! H
2563 :			there tlastcfa !
2564 :	jwilke	1.103	hereresolve gdoes, ;
2565 :	anton	1.1
2566 :			: Build: ( -- [xt] [colon-sys] )
2567 :	jwilke	1.52	:noname postpone TCreate ;
2568 :
2569 :			: BuildSmart: ( -- [xt] [colon-sys] )
2570 :			:noname
2571 :	jwilke	1.53	[ T has? rom H [IF] ]
2572 :	jwilke	1.52	postpone RTCreate
2573 :			[ [ELSE] ]
2574 :			postpone TCreate
2575 :			[ [THEN] ] ;
2576 :	anton	1.1
2577 :	jwilke	1.108	: ;Build
2578 :			postpone ; built >exec ! ; immediate
2579 :
2580 :	anton	1.1	: gdoes> ( ghost -- addr flag )
2581 :	jwilke	1.110	executed-ghost @ g>body ;
2582 :	anton	1.1
2583 :			\ DO: ;DO 11may93jaw
2584 :
2585 :	jwilke	1.108	: do:ghost! ( ghost -- ) built >do:ghost ! ;
2586 :			: doexec! ( xt -- ) built >do:ghost @ >exec ! ;
2587 :
2588 :			: DO: ( -- [xt] [colon-sys] )
2589 :			here ghostheader do:ghost!
2590 :	jwilke	1.110	:noname postpone gdoes> ;
2591 :	anton	1.1
2592 :	jwilke	1.108	: by: ( -- [xt] [colon-sys] ) \ name
2593 :			Ghost do:ghost!
2594 :	jwilke	1.110	:noname postpone gdoes> ;
2595 :	pazsan	1.42
2596 :	jwilke	1.108	: ;DO ( [xt] [colon-sys] -- )
2597 :			postpone ; doexec! ; immediate
2598 :	anton	1.1
2599 :	jwilke	1.109	: by ( -- ) \ Name
2600 :	jwilke	1.108	Ghost >do:ghost @ do:ghost! ;
2601 :	jwilke	1.107
2602 :	jwilke	1.109	: compile: ( --[xt] [colon-sys] )
2603 :	jwilke	1.107	\G defines a compile time action for created words
2604 :			\G by this builder
2605 :			:noname ;
2606 :
2607 :	jwilke	1.109	: ;compile ( [xt] [colon-sys] -- )
2608 :			postpone ; built >do:ghost @ >comp ! ; immediate
2609 :	jwilke	1.107
2610 :	anton	1.1	\ Variables and Constants 05dec92py
2611 :
2612 :	jwilke	1.108	Builder (Constant)
2613 :			Build: ( n -- ) ;Build
2614 :	jwilke	1.103	by: :docon ( target-body-addr -- n ) T @ H ;DO
2615 :	jwilke	1.52
2616 :	jwilke	1.108	Builder Constant
2617 :			Build: ( n -- ) T , H ;Build
2618 :	jwilke	1.52	by (Constant)
2619 :
2620 :	jwilke	1.108	Builder AConstant
2621 :			Build: ( n -- ) T A, H ;Build
2622 :	jwilke	1.52	by (Constant)
2623 :
2624 :	jwilke	1.108	Builder 2Constant
2625 :			Build: ( d -- ) T , , H ;Build
2626 :	jwilke	1.52	DO: ( ghost -- d ) T dup cell+ @ swap @ H ;DO
2627 :
2628 :	jwilke	1.108	Builder Create
2629 :			BuildSmart: ;Build
2630 :	jwilke	1.103	by: :dovar ( target-body-addr -- addr ) ;DO
2631 :	anton	1.1
2632 :	jwilke	1.108	Builder Variable
2633 :	jwilke	1.53	T has? rom H [IF]
2634 :	jwilke	1.108	Build: ( -- ) T here 0 A, H switchram T align here swap ! 0 , H ( switchrom ) ;Build
2635 :	jwilke	1.52	by (Constant)
2636 :			[ELSE]
2637 :	jwilke	1.108	Build: T 0 , H ;Build
2638 :	anton	1.1	by Create
2639 :	jwilke	1.52	[THEN]
2640 :	anton	1.1
2641 :	jwilke	1.108	Builder 2Variable
2642 :	jwilke	1.53	T has? rom H [IF]
2643 :	jwilke	1.108	Build: ( -- ) T here 0 A, H switchram T align here swap ! 0 , 0 , H ( switchrom ) ;Build
2644 :	pazsan	1.54	by (Constant)
2645 :			[ELSE]
2646 :	jwilke	1.108	Build: T 0 , 0 , H ;Build
2647 :	pazsan	1.54	by Create
2648 :			[THEN]
2649 :
2650 :	jwilke	1.108	Builder AVariable
2651 :	pazsan	1.54	T has? rom H [IF]
2652 :	jwilke	1.108	Build: ( -- ) T here 0 A, H switchram T align here swap ! 0 A, H ( switchrom ) ;Build
2653 :	jwilke	1.52	by (Constant)
2654 :			[ELSE]
2655 :	jwilke	1.108	Build: T 0 A, H ;Build
2656 :	anton	1.1	by Create
2657 :	jwilke	1.52	[THEN]
2658 :	anton	1.1
2659 :	pazsan	1.3	\ User variables 04may94py
2660 :
2661 :			Variable tup 0 tup !
2662 :			Variable tudp 0 tudp !
2663 :	jwilke	1.78
2664 :	pazsan	1.3	: u, ( n -- udp )
2665 :			tup @ tudp @ + T ! H
2666 :	pazsan	1.19	tudp @ dup T cell+ H tudp ! ;
2667 :	jwilke	1.78
2668 :	pazsan	1.3	: au, ( n -- udp )
2669 :			tup @ tudp @ + T A! H
2670 :	pazsan	1.19	tudp @ dup T cell+ H tudp ! ;
2671 :	jwilke	1.78
2672 :	jwilke	1.108	Builder User
2673 :			Build: 0 u, X , ;Build
2674 :	jwilke	1.78	by: :douser ( ghost -- up-addr ) X @ tup @ + ;DO
2675 :	anton	1.1
2676 :	jwilke	1.108	Builder 2User
2677 :			Build: 0 u, X , 0 u, drop ;Build
2678 :	pazsan	1.3	by User
2679 :	anton	1.1
2680 :	jwilke	1.108	Builder AUser
2681 :			Build: 0 au, X , ;Build
2682 :	pazsan	1.3	by User
2683 :	anton	1.1
2684 :	jwilke	1.108	Builder (Value)
2685 :			Build: ( n -- ) ;Build
2686 :			by: :docon ( target-body-addr -- n ) T @ H ;DO
2687 :
2688 :	anton	1.1	Builder Value
2689 :	jwilke	1.108	BuildSmart: T , H ;Build
2690 :			by (Value)
2691 :	anton	1.1
2692 :	pazsan	1.32	Builder AValue
2693 :	jwilke	1.108	BuildSmart: T A, H ;Build
2694 :			by (Value)
2695 :	pazsan	1.32
2696 :	jwilke	1.103	Defer texecute
2697 :
2698 :	jwilke	1.108	Builder Defer
2699 :			BuildSmart: ( -- ) [T'] noop T A, H ;Build
2700 :	jwilke	1.103	by: :dodefer ( ghost -- ) X @ texecute ;DO
2701 :	pazsan	1.37
2702 :	jwilke	1.108	Builder interpret/compile:
2703 :			Build: ( inter comp -- ) swap T immediate A, A, H ;Build
2704 :	pazsan	1.37	DO: ( ghost -- ) ABORT" CROSS: Don't execute" ;DO
2705 :	pazsan	1.24
2706 :			\ Sturctures 23feb95py
2707 :
2708 :			: nalign ( addr1 n -- addr2 )
2709 :			\ addr2 is the aligned version of addr1 wrt the alignment size n
2710 :			1- tuck + swap invert and ;
2711 :	jwilke	1.109
2712 :	pazsan	1.24
2713 :	jwilke	1.108	Builder (Field)
2714 :			Build: ;Build
2715 :	pazsan	1.44	by: :dofield T @ H + ;DO
2716 :
2717 :	jwilke	1.108	Builder Field
2718 :	anton	1.51	Build: ( align1 offset1 align size "name" -- align2 offset2 )
2719 :			rot dup T , H ( align1 align size offset1 )
2720 :	jwilke	1.108	+ >r nalign r> ;Build
2721 :	pazsan	1.44	by (Field)
2722 :	pazsan	1.24
2723 :	jwilke	1.109	>TARGET
2724 :	anton	1.51	: struct T 1 chars 0 H ;
2725 :	pazsan	1.24	: end-struct T 2Constant H ;
2726 :
2727 :	jwilke	1.52	: cell% ( n -- size align )
2728 :	anton	1.51	T 1 cells H dup ;
2729 :	jwilke	1.109	>CROSS
2730 :	pazsan	1.88
2731 :	jwilke	1.105	\ Input-Methods 01py
2732 :	jwilke	1.103
2733 :	jwilke	1.108	Builder input-method
2734 :			Build: ( m v -- m' v ) dup T , cell+ H ;Build
2735 :	pazsan	1.88	DO: abort" Not in cross mode" ;DO
2736 :
2737 :	jwilke	1.108	Builder input-var
2738 :			Build: ( m v size -- m v' ) over T , H + ;Build
2739 :	pazsan	1.88	DO: abort" Not in cross mode" ;DO
2740 :	pazsan	1.24
2741 :	jwilke	1.108	\ Peephole optimization 05sep01jaw
2742 :
2743 :			\ this section defines different compilation
2744 :			\ actions for created words
2745 :			\ this will help the peephole optimizer
2746 :			\ I (jaw) took this from bernds lates cross-compiler
2747 :			\ changes but seperated it from the original
2748 :			\ Builder words. The final plan is to put this
2749 :			\ into a seperate file, together with the peephole
2750 :			\ optimizer for cross
2751 :
2752 :
2753 :			T has? peephole H [IF]
2754 :
2755 :	jwilke	1.109	>CROSS
2756 :			: (callc) compile call T >body a, H ; ' (callc) plugin-of colon,
2757 :
2758 :			\ if we want this, we have to spilt aconstant
2759 :			\ and constant!!
2760 :			\ Builder (Constant)
2761 :			\ compile: g>body X @ lit, ;compile
2762 :	jwilke	1.108
2763 :			Builder (Constant)
2764 :	jwilke	1.109	compile: g>body alit, compile @ ;compile
2765 :	jwilke	1.108
2766 :			Builder (Value)
2767 :			compile: g>body alit, compile @ ;compile
2768 :
2769 :			\ this changes also Variable, AVariable and 2Variable
2770 :			Builder Create
2771 :			\ compile: g>body alit, ;compile
2772 :
2773 :			Builder User
2774 :			compile: g>body compile useraddr T @ , H ;compile
2775 :
2776 :			Builder Defer
2777 :			compile: g>body alit, compile @ compile execute ;compile
2778 :	jwilke	1.102
2779 :	jwilke	1.108	Builder (Field)
2780 :			compile: g>body T @ H lit, compile + ;compile
2781 :	jwilke	1.102
2782 :	jwilke	1.108	[THEN]
2783 :	jwilke	1.103
2784 :	jwilke	1.52	\ structural conditionals 17dec92py
2785 :
2786 :			>CROSS
2787 :	jwilke	1.103	: (ncontrols?) ( n -- )
2788 :			\g We expect n open control structures
2789 :			depth over u<=
2790 :			ABORT" CROSS: unstructured, stack underflow"
2791 :			0 ?DO I pick 0=
2792 :			ABORT" CROSS: unstructured"
2793 :			LOOP ; ' (ncontrols?) plugin-of ncontrols?
2794 :
2795 :			\ : ?struc ( flag -- ) ABORT" CROSS: unstructured " ;
2796 :			\ : sys? ( sys -- sys ) dup 0= ?struc ;
2797 :
2798 :	jwilke	1.52	: >mark ( -- sys ) T here ( dup ." M" hex. ) 0 , H ;
2799 :
2800 :	jwilke	1.78	: branchoffset ( src dest -- ) - tchar / ; \ ?? jaw
2801 :	jwilke	1.52
2802 :	jwilke	1.78	: >resolve ( sys -- )
2803 :			X here ( dup ." >" hex. ) over branchoffset swap X ! ;
2804 :	jwilke	1.52
2805 :	jwilke	1.78	: <resolve ( sys -- )
2806 :			X here ( dup ." <" hex. ) branchoffset X , ;
2807 :	jwilke	1.52
2808 :	jwilke	1.78	:noname compile branch X here branchoffset X , ;
2809 :	pazsan	1.54	IS branch, ( target-addr -- )
2810 :	jwilke	1.78	:noname compile ?branch X here branchoffset X , ;
2811 :	pazsan	1.54	IS ?branch, ( target-addr -- )
2812 :			:noname compile branch T here 0 , H ;
2813 :			IS branchmark, ( -- branchtoken )
2814 :			:noname compile ?branch T here 0 , H ;
2815 :			IS ?branchmark, ( -- branchtoken )
2816 :			:noname T here 0 , H ;
2817 :			IS ?domark, ( -- branchtoken )
2818 :	jwilke	1.78	:noname dup X @ ?struc X here over branchoffset swap X ! ;
2819 :	pazsan	1.54	IS branchtoresolve, ( branchtoken -- )
2820 :	jwilke	1.78	:noname branchto, X here ;
2821 :	pazsan	1.54	IS branchtomark, ( -- target-addr )
2822 :	jwilke	1.52
2823 :			>TARGET
2824 :
2825 :			\ Structural Conditionals 12dec92py
2826 :
2827 :	jwilke	1.103	\ CLEANUP Cond: BUT sys? swap ;Cond
2828 :			\ CLEANUP Cond: YET sys? dup ;Cond
2829 :	jwilke	1.52
2830 :			>CROSS
2831 :
2832 :	jwilke	1.78	Variable tleavings 0 tleavings !
2833 :	jwilke	1.52
2834 :	pazsan	1.54	: (done) ( addr -- )
2835 :			tleavings @
2836 :			BEGIN dup
2837 :			WHILE
2838 :			>r dup r@ cell+ @ \ address of branch
2839 :			u> 0= \ lower than DO?
2840 :			WHILE
2841 :			r@ 2 cells + @ \ branch token
2842 :			branchtoresolve,
2843 :			r@ @ r> free throw
2844 :			REPEAT r> THEN
2845 :			tleavings ! drop ;
2846 :
2847 :	jwilke	1.53	>TARGET
2848 :
2849 :	jwilke	1.103	\ What for? ANS? JAW Cond: DONE ( addr -- ) (done) ;Cond
2850 :	jwilke	1.53
2851 :			>CROSS
2852 :	pazsan	1.54	: (leave) ( branchtoken -- )
2853 :	jwilke	1.53	3 cells allocate throw >r
2854 :			T here H r@ cell+ !
2855 :			r@ 2 cells + !
2856 :			tleavings @ r@ !
2857 :			r> tleavings ! ;
2858 :			>TARGET
2859 :
2860 :	jwilke	1.103	: (leave,) ( -- )
2861 :			branchmark, (leave) ; ' (leave,) plugin-of leave,
2862 :
2863 :			: (?leave,) ( -- )
2864 :			compile 0= ?branchmark, (leave) ; ' (?leave,) plugin-of ?leave,
2865 :
2866 :			Cond: LEAVE leave, ;Cond
2867 :			Cond: ?LEAVE ?leave, ;Cond
2868 :	jwilke	1.53
2869 :	pazsan	1.54	>CROSS
2870 :			\ !!JW ToDo : Move to general tools section
2871 :
2872 :			: to1 ( x1 x2 xn n -- addr )
2873 :	jwilke	1.103	\G packs n stack elements in am allocated memory region
2874 :	pazsan	1.54	dup dup 1+ cells allocate throw dup >r swap 1+
2875 :			0 DO tuck ! cell+ LOOP
2876 :			drop r> ;
2877 :	jwilke	1.103
2878 :	pazsan	1.54	: 1to ( addr -- x1 x2 xn )
2879 :			\G unpacks the elements saved by to1
2880 :			dup @ swap over cells + swap
2881 :			0 DO dup @ swap 1 cells - LOOP
2882 :			free throw ;
2883 :
2884 :			: loop] branchto, dup <resolve tcell - (done) ;
2885 :
2886 :			: skiploop] ?dup IF branchto, branchtoresolve, THEN ;
2887 :
2888 :			>TARGET
2889 :
2890 :	jwilke	1.52	\ Structural Conditionals 12dec92py
2891 :
2892 :	jwilke	1.103	: (cs-swap) ( x1 x2 -- x2 x1 )
2893 :			swap ; ' (cs-swap) plugin-of cs-swap
2894 :
2895 :			: (ahead,) branchmark, ; ' (ahead,) plugin-of ahead,
2896 :
2897 :			: (if,) ?branchmark, ; ' (if,) plugin-of if,
2898 :
2899 :			: (then,) branchto, branchtoresolve, ; ' (then,) plugin-of then,
2900 :
2901 :			: (else,) ( ahead ) branchmark,
2902 :			swap
2903 :			( then ) branchto, branchtoresolve, ; ' (else,) plugin-of else,
2904 :
2905 :			: (begin,) branchtomark, ; ' (begin,) plugin-of begin,
2906 :
2907 :			: (while,) ( if ) ?branchmark,
2908 :			swap ; ' (while,) plugin-of while,
2909 :
2910 :			: (again,) branch, ; ' (again,) plugin-of again,
2911 :
2912 :			: (until,) ?branch, ; ' (until,) plugin-of until,
2913 :
2914 :			: (repeat,) ( again ) branch,
2915 :			( then ) branchto, branchtoresolve, ; ' (repeat,) plugin-of repeat,
2916 :
2917 :			: (case,) ( -- n )
2918 :			0 ; ' (case,) plugin-of case,
2919 :
2920 :			: (of,) ( n -- x1 n )
2921 :			1+ >r
2922 :			compile over compile =
2923 :			if, compile drop r> ; ' (of,) plugin-of of,
2924 :
2925 :			: (endof,) ( x1 n -- x2 n )
2926 :			>r 1 ncontrols? else, r> ; ' (endof,) plugin-of endof,
2927 :
2928 :			: (endcase,) ( x1 .. xn n -- )
2929 :			compile drop 0 ?DO 1 ncontrols? then, LOOP ; ' (endcase,) plugin-of endcase,
2930 :
2931 :	jwilke	1.53	>TARGET
2932 :	jwilke	1.103	Cond: AHEAD ahead, ;Cond
2933 :			Cond: IF if, ;Cond
2934 :			Cond: THEN 1 ncontrols? then, ;Cond
2935 :			Cond: ENDIF 1 ncontrols? then, ;Cond
2936 :			Cond: ELSE 1 ncontrols? else, ;Cond
2937 :
2938 :			Cond: BEGIN begin, ;Cond
2939 :			Cond: WHILE 1 ncontrols? while, ;Cond
2940 :			Cond: AGAIN 1 ncontrols? again, ;Cond
2941 :			Cond: UNTIL 1 ncontrols? until, ;Cond
2942 :			Cond: REPEAT 2 ncontrols? repeat, ;Cond
2943 :
2944 :			Cond: CASE case, ;Cond
2945 :			Cond: OF of, ;Cond
2946 :			Cond: ENDOF endof, ;Cond
2947 :			Cond: ENDCASE endcase, ;Cond
2948 :	anton	1.1
2949 :			\ Structural Conditionals 12dec92py
2950 :
2951 :	jwilke	1.103	: (do,) ( -- target-addr )
2952 :			\ ?? i think 0 is too much! jaw
2953 :	pazsan	1.54	0 compile (do)
2954 :	jwilke	1.103	branchtomark, 2 to1 ; ' (do,) plugin-of do,
2955 :	pazsan	1.54
2956 :	jwilke	1.103	\ alternative for if no ?do
2957 :			\ : (do,)
2958 :	pazsan	1.54	\ compile 2dup compile = compile IF
2959 :			\ compile 2drop compile ELSE
2960 :			\ compile (do) branchtomark, 2 to1 ;
2961 :
2962 :	jwilke	1.103	: (?do,) ( -- target-addr )
2963 :	pazsan	1.54	0 compile (?do) ?domark, (leave)
2964 :	jwilke	1.103	branchtomark, 2 to1 ; ' (?do,) plugin-of ?do,
2965 :
2966 :			: (for,) ( -- target-addr )
2967 :			compile (for) branchtomark, ; ' (for,) plugin-of for,
2968 :
2969 :			: (loop,) ( target-addr -- )
2970 :			1to compile (loop) loop]
2971 :			compile unloop skiploop] ; ' (loop,) plugin-of loop,
2972 :
2973 :			: (+loop,) ( target-addr -- )
2974 :			1to compile (+loop) loop]
2975 :			compile unloop skiploop] ; ' (+loop,) plugin-of +loop,
2976 :
2977 :			: (next,)
2978 :			compile (next) loop] compile unloop ; ' (next,) plugin-of next,
2979 :
2980 :			Cond: DO do, ;Cond
2981 :			Cond: ?DO ?do, ;Cond
2982 :			Cond: FOR for, ;Cond
2983 :
2984 :			Cond: LOOP 1 ncontrols? loop, ;Cond
2985 :			Cond: +LOOP 1 ncontrols? +loop, ;Cond
2986 :			Cond: NEXT 1 ncontrols? next, ;Cond
2987 :	jwilke	1.52
2988 :	anton	1.1	\ String words 23feb93py
2989 :
2990 :	jwilke	1.103	: ," [char] " parse ht-string, X align ;
2991 :	anton	1.1
2992 :	jwilke	1.103	Cond: ." compile (.") T ," H ;Cond
2993 :			Cond: S" compile (S") T ," H ;Cond
2994 :			Cond: C" compile (C") T ," H ;Cond
2995 :			Cond: ABORT" compile (ABORT") T ," H ;Cond
2996 :	anton	1.1
2997 :			Cond: IS T ' >body H compile ALiteral compile ! ;Cond
2998 :	pazsan	1.66	: IS T >address ' >body ! H ;
2999 :	pazsan	1.9	Cond: TO T ' >body H compile ALiteral compile ! ;Cond
3000 :			: TO T ' >body ! H ;
3001 :	anton	1.1
3002 :	jwilke	1.52	Cond: defers T ' >body @ compile, H ;Cond
3003 :
3004 :	anton	1.1	\ LINKED ERR" ENV" 2ENV" 18may93jaw
3005 :
3006 :			\ linked list primitive
3007 :	jwilke	1.79	: linked X here over X @ X A, swap X ! ;
3008 :	jwilke	1.52	: chained T linked A, H ;
3009 :	anton	1.1
3010 :			: err" s" ErrLink linked" evaluate T , H
3011 :	jwilke	1.103	[char] " parse ht-string, X align ;
3012 :	anton	1.1
3013 :			: env" [char] " parse s" EnvLink linked" evaluate
3014 :	jwilke	1.103	ht-string, X align X , ;
3015 :	anton	1.1
3016 :			: 2env" [char] " parse s" EnvLink linked" evaluate
3017 :	jwilke	1.103	here >r ht-string, X align X , X ,
3018 :	anton	1.1	r> dup T c@ H 80 and swap T c! H ;
3019 :
3020 :			\ compile must be last 22feb93py
3021 :
3022 :	jwilke	1.103	Cond: [compile] ( -- ) \ name
3023 :			\g For immediate words, works even if forward reference
3024 :			bl word gfind 0= ABORT" CROSS: Can't compile"
3025 :			(gexecute) ;Cond
3026 :
3027 :			Cond: postpone ( -- ) \ name
3028 :			bl word gfind 0= ABORT" CROSS: Can't compile"
3029 :			dup >magic @ <fwd> =
3030 :			ABORT" CROSS: Can't postpone on forward declaration"
3031 :			dup >magic @ <imm> =
3032 :			IF (gexecute)
3033 :			ELSE compile (compile) addr, THEN ;Cond
3034 :	pazsan	1.54
3035 :	jwilke	1.77	\ save-cross 17mar93py
3036 :
3037 :			hex
3038 :
3039 :			>CROSS
3040 :			Create magic s" Gforth2x" here over allot swap move
3041 :
3042 :			bigendian 1+ \ strangely, in magic big=0, little=1
3043 :			tcell 1 = 0 and or
3044 :			tcell 2 = 2 and or
3045 :			tcell 4 = 4 and or
3046 :			tcell 8 = 6 and or
3047 :			tchar 1 = 00 and or
3048 :			tchar 2 = 28 and or
3049 :			tchar 4 = 50 and or
3050 :			tchar 8 = 78 and or
3051 :			magic 7 + c!
3052 :
3053 :			: save-cross ( "image-name" "binary-name" -- )
3054 :			bl parse ." Saving to " 2dup type cr
3055 :			w/o bin create-file throw >r
3056 :	jwilke	1.113	s" header" X $has? IF
3057 :	anton	1.80	s" #! " r@ write-file throw
3058 :			bl parse r@ write-file throw
3059 :			s" --image-file" r@ write-file throw
3060 :	jwilke	1.77	#lf r@ emit-file throw
3061 :			r@ dup file-position throw drop 8 mod 8 swap ( file-id limit index )
3062 :			?do
3063 :			bl over emit-file throw
3064 :			loop
3065 :			drop
3066 :			magic 8 r@ write-file throw \ write magic
3067 :			ELSE
3068 :			bl parse 2drop
3069 :			THEN
3070 :			image @ there
3071 :			r@ write-file throw \ write image
3072 :	jwilke	1.113	s" relocate" X $has? IF
3073 :	jwilke	1.77	bit$ @ there 1- tcell>bit rshift 1+
3074 :			r@ write-file throw \ write tags
3075 :			THEN
3076 :			r> close-file throw ;
3077 :
3078 :			: save-region ( addr len -- )
3079 :			bl parse w/o bin create-file throw >r
3080 :			swap >image swap r@ write-file throw
3081 :			r> close-file throw ;
3082 :
3083 :	jwilke	1.110	\ save-asm-region 29aug01jaw
3084 :	jwilke	1.103
3085 :			Variable name-ptr
3086 :			Create name-buf 200 chars allot
3087 :			: init-name-buf name-buf name-ptr ! ;
3088 :			: nb, name-ptr @ c! 1 chars name-ptr +! ;
3089 :			: $nb, ( adr len -- ) bounds ?DO I c@ nb, LOOP ;
3090 :			: @nb name-ptr @ name-buf tuck - ;
3091 :
3092 :			\ stores a usefull string representation of the character
3093 :			\ in the name buffer
3094 :			: name-char, ( c -- )
3095 :			dup 'a 'z 1+ within IF nb, EXIT THEN
3096 :			dup 'A 'Z 1+ within IF $20 + nb, EXIT THEN
3097 :			dup '0 '9 1+ within IF nb, EXIT THEN
3098 :			CASE '+ OF s" _PLUS" $nb, ENDOF
3099 :			'- OF s" _MINUS" $nb, ENDOF
3100 :			'* OF s" _STAR" $nb, ENDOF
3101 :			'/ OF s" _SLASH" $nb, ENDOF
3102 :			'' OF s" _TICK" $nb, ENDOF
3103 :			'( OF s" _OPAREN" $nb, ENDOF
3104 :			') OF s" _CPAREN" $nb, ENDOF
3105 :			'[ OF s" _OBRACKET" $nb, ENDOF
3106 :			'] OF s" _CBRACKET" $nb, ENDOF
3107 :			'! OF s" _STORE" $nb, ENDOF
3108 :			'@ OF s" _FETCH" $nb, ENDOF
3109 :			'> OF s" _GREATER" $nb, ENDOF
3110 :			'< OF s" _LESS" $nb, ENDOF
3111 :			'= OF s" _EQUAL" $nb, ENDOF
3112 :			'# OF s" _HASH" $nb, ENDOF
3113 :			'? OF s" _QUEST" $nb, ENDOF
3114 :			': OF s" _COL" $nb, ENDOF
3115 :			'; OF s" _SEMICOL" $nb, ENDOF
3116 :			', OF s" _COMMA" $nb, ENDOF
3117 :			'. OF s" _DOT" $nb, ENDOF
3118 :			'" OF s" _DQUOT" $nb, ENDOF
3119 :			dup
3120 :			base @ >r hex s>d <# #s 'X hold '_ hold #> $nb, r> base !
3121 :			ENDCASE ;
3122 :
3123 :			: label-from-ghostname ( ghost -- addr len )
3124 :			dup >ghostname init-name-buf 'L nb, bounds
3125 :			?DO I c@ name-char, LOOP
3126 :			\ we add the address to a name to make in unique
3127 :			\ because one name may appear more then once
3128 :			\ there are names (e.g. boot) that may be reference from other
3129 :			\ assembler source files, so we declare them as unique
3130 :			\ and don't add the address suffix
3131 :			dup >ghost-flags @ <unique> and 0=
3132 :			IF s" __" $nb, >link @ base @ >r hex 0 <# #s 'L hold #> r> base ! $nb,
3133 :			ELSE drop
3134 :			THEN
3135 :			@nb ;
3136 :
3137 :	jwilke	1.111	\ FIXME why disabled?!
3138 :	jwilke	1.103	: label-from-ghostnameXX ( ghost -- addr len )
3139 :			\ same as (label-from-ghostname) but caches generated names
3140 :			dup >asm-name @ ?dup IF nip count EXIT THEN
3141 :			\ dup >r (label-from-ghostname) 2dup
3142 :			align here >r string, align
3143 :			r> r> >asm-name ! ;
3144 :
3145 :			: primghostdiscover ( xt -- ghost true \| xt false )
3146 :			dup 0= IF false EXIT THEN
3147 :			>r last-prim-ghost
3148 :			BEGIN @ dup
3149 :			WHILE dup >asm-dummyaddr @ r@ =
3150 :			IF rdrop true EXIT THEN
3151 :			REPEAT
3152 :			drop r> false ;
3153 :
3154 :			: gdiscover2 ( xt -- ghost true \| xt false )
3155 :			dup taddr>region 0= IF false EXIT THEN
3156 :			dup (>regiontype) @ dup 0= IF drop false EXIT THEN
3157 :			addr-xt-ghost @ dup 0= IF drop false EXIT THEN
3158 :			nip true ;
3159 :			\ dup >ghost-name @ IF nip true ELSE drop false THEN ;
3160 :
3161 :			\ generates a label name for the target address
3162 :			: generate-label-name ( taddr -- addr len )
3163 :			gdiscover2
3164 :			IF dup >magic @ <do:> =
3165 :			IF >asm-name @ count EXIT THEN
3166 :			label-from-ghostname
3167 :			ELSE
3168 :			primghostdiscover
3169 :			IF >asm-name @ count
3170 :			ELSE base @ >r hex 0 <# #s 'L hold #> r> base !
3171 :			THEN
3172 :			THEN ;
3173 :
3174 :			Variable outfile-fd
3175 :
3176 :			: $out ( adr len -- ) outfile-fd @ write-file throw ;
3177 :			: nlout newline $out ;
3178 :			: .ux ( n -- )
3179 :			base @ hex swap 0 <# #S #> $out base ! ;
3180 :
3181 :			: save-asm-region-part-aligned ( taddr len -- 'taddr 'len )
3182 :			dup cell/ 0
3183 :			?DO nlout s" .word " $out over @relbit
3184 :			IF over X @ generate-label-name $out
3185 :			ELSE over X @ s" 0x0" $out .ux
3186 :			THEN
3187 :			tcell /string
3188 :			LOOP ;
3189 :
3190 :			: print-bytes ( taddr len n -- taddr' len' )
3191 :			over min dup 0>
3192 :			IF nlout s" .byte " $out 0
3193 :			?DO I 0> IF s" , " $out THEN
3194 :			over X c@ s" 0x0" $out .ux 1 /string
3195 :			LOOP
3196 :			THEN ;
3197 :
3198 :			: save-asm-region-part ( addr len -- )
3199 :			over dup X aligned swap - ?dup
3200 :			IF print-bytes THEN
3201 :			save-asm-region-part-aligned
3202 :			dup dup X aligned swap - ?dup
3203 :			IF 2 pick @relbit ABORT" relocated field splitted"
3204 :			print-bytes
3205 :			THEN
3206 :			2drop ;
3207 :
3208 :			: print-label ( taddr -- )
3209 :			nlout generate-label-name $out s" :" $out ;
3210 :
3211 :			: snl-calc ( taddr taddr2 -- )
3212 :			tuck over - ;
3213 :
3214 :			: skip-nolables ( taddr -- taddr2 taddr len )
3215 :			\G skips memory region where no lables are defined
3216 :			\G starting from taddr+1
3217 :			\G Labels will be introduced for each reference mark
3218 :			\G in addr-refs.
3219 :			\G This word deals with lables at byte addresses as well.
3220 :			\G The main idea is to have an intro part which
3221 :			\G skips until the next cell boundary, the middle part
3222 :			\G which skips whole cells very efficiently and the third
3223 :			\G part which skips the bytes to the label in a cell
3224 :			dup 1+ dup (>regiontype)
3225 :			( S taddr taddr-realstart type-addr )
3226 :			dup @ dup IF addr-refs @ THEN
3227 :			swap >r
3228 :			over align+ tuck tcell swap - rshift swap 0
3229 :			DO dup 1 and
3230 :			IF drop rdrop snl-calc UNLOOP EXIT THEN
3231 :			2/ swap 1+ swap
3232 :			LOOP
3233 :			drop r> cell+
3234 :			( S .. taddr2 type-addr ) dup
3235 :			BEGIN dup @ dup IF addr-refs @ THEN 0= WHILE cell+ REPEAT
3236 :			dup >r swap - 1 cells / tcell * + r>
3237 :			( S .. taddr2+skiplencells type-addr )
3238 :			@ addr-refs @ 1 tcell lshift or
3239 :			BEGIN dup 1 and 0= WHILE swap 1+ swap 2/ REPEAT drop
3240 :			( S .. taddr2+skiplencells+skiplenbytes )
3241 :			snl-calc ;
3242 :
3243 :			: insert-label ( taddr -- )
3244 :			dup 0= IF drop EXIT THEN
3245 :			\ ignore everything which points outside our memory regions
3246 :			\ maybe a primitive pointer or whatever
3247 :			dup taddr>region 0= IF drop EXIT THEN
3248 :			dup >r (>regiontype) define-addr-struct addr-refs dup @
3249 :			r> tcell 1- and 1 swap lshift or swap ! ;
3250 :
3251 :			\ this generates a sorted list of addresses which must be labels
3252 :			\ it scans therefore a whole region
3253 :			: generate-label-list-region ( taddr len -- )
3254 :			BEGIN over @relbit IF over X @ insert-label THEN
3255 :			tcell /string dup 0<
3256 :			UNTIL 2drop ;
3257 :
3258 :			: generate-label-list ( -- )
3259 :			region-link
3260 :			BEGIN @ dup WHILE
3261 :			dup 0 >rlink - extent
3262 :			?dup IF generate-label-list-region ELSE drop THEN
3263 :			REPEAT drop ;
3264 :
3265 :			: create-outfile ( addr len -- )
3266 :			w/o bin create-file throw outfile-fd ! ;
3267 :
3268 :			: close-outfile ( -- )
3269 :			outfile-fd @ close-file throw ;
3270 :
3271 :			: (save-asm-region) ( region -- )
3272 :			\ ." label list..."
3273 :			generate-label-list
3274 :			\ ." ok!" cr
3275 :			extent ( S taddr len )
3276 :			over insert-label
3277 :			2dup + dup insert-label >r ( R end-label )
3278 :			( S taddr len ) drop
3279 :			BEGIN
3280 :			dup print-label
3281 :			dup r@ <> WHILE
3282 :			skip-nolables save-asm-region-part
3283 :			REPEAT drop rdrop ;
3284 :
3285 :			: lineout ( addr len -- )
3286 :			outfile-fd @ write-line throw ;
3287 :
3288 :			: save-asm-region ( region adr len -- )
3289 :			create-outfile (save-asm-region) close-outfile ;
3290 :
3291 :	pazsan	1.54	\ \ minimal definitions
3292 :
3293 :	jwilke	1.77	>MINIMAL also minimal
3294 :
3295 :	anton	1.1	\ Usefull words 13feb93py
3296 :
3297 :			: KB 400 * ;
3298 :
3299 :	pazsan	1.54	\ \ [IF] [ELSE] [THEN] ... 14sep97jaw
3300 :
3301 :			\ it is useful to define our own structures and not to rely
3302 :	jwilke	1.109	\ on the words in the host system
3303 :			\ The words in the host system might be defined with vocabularies
3304 :	pazsan	1.54	\ this doesn't work with our self-made compile-loop
3305 :
3306 :			Create parsed 20 chars allot \ store word we parsed
3307 :
3308 :			: upcase
3309 :			parsed count bounds
3310 :			?DO I c@ toupper I c! LOOP ;
3311 :
3312 :			: [ELSE]
3313 :			1 BEGIN
3314 :			BEGIN bl word count dup WHILE
3315 :	jwilke	1.77	comment? 20 umin parsed place upcase parsed count
3316 :	pazsan	1.54	2dup s" [IF]" compare 0= >r
3317 :			2dup s" [IFUNDEF]" compare 0= >r
3318 :			2dup s" [IFDEF]" compare 0= r> or r> or
3319 :			IF 2drop 1+
3320 :			ELSE 2dup s" [ELSE]" compare 0=
3321 :			IF 2drop 1- dup
3322 :			IF 1+
3323 :			THEN
3324 :			ELSE
3325 :			2dup s" [ENDIF]" compare 0= >r
3326 :			s" [THEN]" compare 0= r> or
3327 :			IF 1- THEN
3328 :			THEN
3329 :			THEN
3330 :			?dup 0= ?EXIT
3331 :			REPEAT
3332 :			2drop refill 0=
3333 :			UNTIL drop ; immediate
3334 :
3335 :			: [THEN] ( -- ) ; immediate
3336 :
3337 :			: [ENDIF] ( -- ) ; immediate
3338 :
3339 :			: [IF] ( flag -- )
3340 :			0= IF postpone [ELSE] THEN ; immediate
3341 :
3342 :			Cond: [IF] postpone [IF] ;Cond
3343 :			Cond: [THEN] postpone [THEN] ;Cond
3344 :			Cond: [ELSE] postpone [ELSE] ;Cond
3345 :
3346 :	anton	1.1	\ define new [IFDEF] and [IFUNDEF] 20may93jaw
3347 :
3348 :	jwilke	1.77	: defined? tdefined? ;
3349 :	pazsan	1.44	: needed? needed? ;
3350 :			: doer? doer? ;
3351 :	anton	1.1
3352 :	jwilke	1.52	\ we want to use IFDEF on compiler directives (e.g. E?) in the source, too
3353 :
3354 :			: directive?
3355 :	jwilke	1.77	bl word count [ ' target >wordlist ] literal search-wordlist
3356 :	jwilke	1.52	dup IF nip THEN ;
3357 :
3358 :			: [IFDEF] >in @ directive? swap >in !
3359 :	jwilke	1.77	0= IF tdefined? ELSE name 2drop true THEN
3360 :	jwilke	1.52	postpone [IF] ;
3361 :
3362 :	jwilke	1.77	: [IFUNDEF] tdefined? 0= postpone [IF] ;
3363 :	anton	1.1
3364 :	pazsan	1.54	Cond: [IFDEF] postpone [IFDEF] ;Cond
3365 :
3366 :			Cond: [IFUNDEF] postpone [IFUNDEF] ;Cond
3367 :
3368 :	anton	1.1	\ C: \- \+ Conditional Compiling 09jun93jaw
3369 :
3370 :	jwilke	1.77	: C: >in @ tdefined? 0=
3371 :			IF >in ! X :
3372 :	anton	1.1	ELSE drop
3373 :			BEGIN bl word dup c@
3374 :			IF count comment? s" ;" compare 0= ?EXIT
3375 :			ELSE refill 0= ABORT" CROSS: Out of Input while C:"
3376 :			THEN
3377 :			AGAIN
3378 :			THEN ;
3379 :
3380 :	jwilke	1.74	: d? d? ;
3381 :
3382 :			\G doesn't skip line when debug switch is on
3383 :			: \D D? 0= IF postpone \ THEN ;
3384 :	jwilke	1.52
3385 :	anton	1.48	\G interprets the line if word is not defined
3386 :	jwilke	1.77	: \- tdefined? IF postpone \ THEN ;
3387 :	anton	1.48
3388 :			\G interprets the line if word is defined
3389 :	jwilke	1.77	: \+ tdefined? 0= IF postpone \ THEN ;
3390 :	anton	1.1
3391 :	anton	1.48	Cond: \- \- ;Cond
3392 :			Cond: \+ \+ ;Cond
3393 :	jwilke	1.52	Cond: \D \D ;Cond
3394 :	anton	1.48
3395 :			: ?? bl word find IF execute ELSE drop 0 THEN ;
3396 :
3397 :			: needed:
3398 :			\G defines ghost for words that we want to be compiled
3399 :	jwilke	1.103	BEGIN >in @ bl word c@ WHILE >in ! Ghost drop REPEAT drop ;
3400 :	anton	1.48
3401 :	anton	1.1	\ words that should be in minimal
3402 :	jwilke	1.52
3403 :			create s-buffer 50 chars allot
3404 :
3405 :	jwilke	1.77	bigendian Constant bigendian
3406 :	anton	1.1
3407 :	jwilke	1.52	: here there ;
3408 :	jwilke	1.67	: equ constant ;
3409 :			: mark there constant ;
3410 :	pazsan	1.54
3411 :			\ compiler directives
3412 :	jwilke	1.52	: >ram >ram ;
3413 :			: >rom >rom ;
3414 :			: >auto >auto ;
3415 :			: >tempdp >tempdp ;
3416 :			: tempdp> tempdp> ;
3417 :			: const constflag on ;
3418 :	jwilke	1.103
3419 :			: Redefinitions-start
3420 :			\G Starts a redefinition section. Warnings are disabled and
3421 :			\G existing ghosts are reused. This is used in the kernel
3422 :			\G where ( and \ and the like are redefined
3423 :			twarnings off warnings off reuse-ghosts on ;
3424 :
3425 :			: Redefinitions-end
3426 :			\G Ends a redefinition section. Warnings are enabled again.
3427 :			twarnings on warnings on reuse-ghosts off ;
3428 :
3429 :			: warnings name 3 =
3430 :			IF twarnings off warnings off ELSE twarnings on warnings on THEN drop ;
3431 :	jwilke	1.102
3432 :	anton	1.60	: \| ;
3433 :			\ : \| NoHeaderFlag on ; \ This is broken (damages the last word)
3434 :	jwilke	1.52
3435 :	anton	1.48	: save-cross save-cross ;
3436 :	jwilke	1.52	: save-region save-region ;
3437 :			: tdump swap >image swap dump ;
3438 :
3439 :	anton	1.48	also forth
3440 :	jwilke	1.52	[IFDEF] Label : Label defempty? Label ; [THEN]
3441 :			[IFDEF] start-macros : start-macros defempty? start-macros ; [THEN]
3442 :	jwilke	1.77	\ [IFDEF] builttag : builttag builttag ; [THEN]
3443 :	anton	1.48	previous
3444 :
3445 :	jwilke	1.52	: s" [char] " parse s-buffer place s-buffer count ; \ for environment?
3446 :	pazsan	1.43	: + + ;
3447 :	jwilke	1.52	: 1+ 1 + ;
3448 :			: 2+ 2 + ;
3449 :	pazsan	1.43	: 1- 1- ;
3450 :			: - - ;
3451 :	jwilke	1.52	: and and ;
3452 :			: or or ;
3453 :	pazsan	1.43	: 2* 2* ;
3454 :			: * * ;
3455 :			: / / ;
3456 :			: dup dup ;
3457 :			: over over ;
3458 :			: swap swap ;
3459 :			: rot rot ;
3460 :			: drop drop ;
3461 :			: = = ;
3462 :			: 0= 0= ;
3463 :			: lshift lshift ;
3464 :			: 2/ 2/ ;
3465 :	jwilke	1.103	\ : . . ;
3466 :	anton	1.1
3467 :	jwilke	1.79	: all-words ['] forced? IS skip? ;
3468 :	pazsan	1.43	: needed-words ['] needed? IS skip? ;
3469 :	jwilke	1.75	: undef-words ['] defined2? IS skip? ;
3470 :			: skipdef skipdef ;
3471 :	anton	1.1
3472 :	pazsan	1.40	: \ postpone \ ; immediate
3473 :	pazsan	1.47	: \G T-\G ; immediate
3474 :	pazsan	1.40	: ( postpone ( ; immediate
3475 :	anton	1.1	: include bl word count included ;
3476 :	jwilke	1.103	: included swap >image swap included ;
3477 :	jwilke	1.52	: require require ;
3478 :	jwilke	1.103	: needs require ;
3479 :	anton	1.1	: .( [char] ) parse type ;
3480 :	jwilke	1.52	: ." [char] " parse type ;
3481 :	anton	1.1	: cr cr ;
3482 :
3483 :	jwilke	1.77	: times 0 ?DO dup X c, LOOP drop ; \ used for space table creation
3484 :
3485 :			\ only forth also cross also minimal definitions order
3486 :	anton	1.1
3487 :			\ cross-compiler words
3488 :
3489 :	jwilke	1.103	: decimal decimal [g'] decimal >exec2 @ ?dup IF EXECUTE THEN ;
3490 :			: hex hex [g'] hex >exec2 @ ?dup IF EXECUTE THEN ;
3491 :	anton	1.1
3492 :	jwilke	1.77	\ : tudp X tudp ;
3493 :			\ : tup X tup ;
3494 :
3495 :			: doc-off false to-doc ! ;
3496 :			: doc-on true to-doc ! ;
3497 :	pazsan	1.39
3498 :	jwilke	1.103	: declareunique ( "name" -- )
3499 :			\G Sets the unique flag for a ghost. The assembler output
3500 :			\G generates labels with the ghostname concatenated with the address
3501 :			\G while cross-compiling. The address is concatenated
3502 :			\G because we have double occurences of the same name.
3503 :			\G If we want to reference the labels from the assembler or C
3504 :			\G code we declare them unique, so the address is skipped.
3505 :			Ghost >ghost-flags dup @ <unique> or swap ! ;
3506 :
3507 :			\ [IFDEF] dbg : dbg dbg ; [THEN]
3508 :	pazsan	1.39
3509 :	anton	1.1	\ for debugging...
3510 :	jwilke	1.103	\ : dbg dbg ;
3511 :			: horder order ;
3512 :			: hwords words ;
3513 :			\ : words also ghosts
3514 :			\ words previous ;
3515 :	jwilke	1.105	: .s .s ;
3516 :	anton	1.1	: bye bye ;
3517 :	pazsan	1.99
3518 :	jwilke	1.103	\ dummy
3519 :			: group 0 word drop ;
3520 :
3521 :	anton	1.1	\ turnkey direction
3522 :			: H forth ; immediate
3523 :			: T minimal ; immediate
3524 :			: G ghosts ; immediate
3525 :
3526 :
3527 :			\ these ones are pefered:
3528 :
3529 :	jwilke	1.74	: unlock previous forth also cross ;
3530 :	jwilke	1.52
3531 :	jwilke	1.77	\ also minimal
3532 :	jwilke	1.103	>cross
3533 :
3534 :			: turnkey
3535 :			ghosts-wordlist 1 set-order
3536 :			also target definitions
3537 :			also Minimal also ;
3538 :
3539 :			>minimal
3540 :
3541 :			: [[+++
3542 :			turnkey unlock ;
3543 :	anton	1.1
3544 :			unlock definitions also minimal
3545 :	jwilke	1.77
3546 :	jwilke	1.103	: lock turnkey ;
3547 :
3548 :			Defer +++]]-hook
3549 :			: +++]] +++]]-hook lock ;
3550 :
3551 :			LOCK
3552 :	jwilke	1.77	\ load cross compiler extension defined in mach file
3553 :
3554 :			UNLOCK >CROSS
3555 :
3556 :			[IFDEF] extend-cross extend-cross [THEN]
3557 :
3558 :			LOCK

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