[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 :			Crossdoc destination ./doc/crossdoc.fd makes no sense when
27 :			cross.fs is uses seperately. jaw
28 :			Do we need this char translation with >address and in branchoffset?
29 :			(>body also affected) jaw
30 :			Clean up mark> and >resolve stuff jaw
31 :
32 :			[THEN]
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 :			: >cross also Cross definitions previous ;
66 :			: >target also Target definitions previous ;
67 :			: >minimal also Minimal definitions previous ;
68 :
69 :			H
70 :
71 :			>CROSS
72 :
73 :			\ find out whether we are compiling with gforth
74 :
75 :			: defined? bl word find nip ;
76 :			defined? emit-file defined? toupper and \ drop 0
77 :			[IF]
78 :			\ use this in a gforth system
79 :			: \GFORTH ; immediate
80 :			: \ANSI postpone \ ; immediate
81 :			[ELSE]
82 :			: \GFORTH postpone \ ; immediate
83 :			: \ANSI ; immediate
84 :			[THEN]
85 :
86 :			\ANSI : [IFUNDEF] defined? 0= postpone [IF] ; immediate
87 :			\ANSI : [IFDEF] defined? postpone [IF] ; immediate
88 :			0 \ANSI drop 1
89 :			[IF]
90 :			: \G postpone \ ; immediate
91 :			: rdrop postpone r> postpone drop ; immediate
92 :			: name bl word count ;
93 :			: bounds over + swap ;
94 :			: scan >r BEGIN dup WHILE over c@ r@ <> WHILE 1 /string REPEAT THEN rdrop ;
95 :			: linked here over @ , swap ! ;
96 :			: alias create , DOES> @ EXECUTE ;
97 :			: defer ['] noop alias ;
98 :			: is state @
99 :			IF ' >body postpone literal postpone !
100 :			ELSE ' >body ! THEN ; immediate
101 :			: 0>= 0< 0= ;
102 :			: d<> rot <> -rot <> or ;
103 :			: toupper dup [char] a [char] z 1+ within IF [char] A [char] a - + THEN ;
104 :			Variable ebuf
105 :			: emit-file ( c fd -- ior ) swap ebuf c! ebuf 1 chars rot write-file ;
106 :			0a Constant #lf
107 :			0d Constant #cr
108 :
109 :			[IFUNDEF] Warnings Variable Warnings [THEN]
110 :
111 :			\ \ Number parsing 23feb93py
112 :
113 :			\ number? number 23feb93py
114 :
115 :			Variable dpl
116 :
117 :			hex
118 :			Create bases 10 , 2 , A , 100 ,
119 :			\ 16 2 10 character
120 :
121 :			\ !! protect BASE saving wrapper against exceptions
122 :			: getbase ( addr u -- addr' u' )
123 :			over c@ [char] $ - dup 4 u<
124 :			IF
125 :			cells bases + @ base ! 1 /string
126 :			ELSE
127 :			drop
128 :			THEN ;
129 :
130 :			: sign? ( addr u -- addr u flag )
131 :			over c@ [char] - = dup >r
132 :			IF
133 :			1 /string
134 :			THEN
135 :			r> ;
136 :
137 :			: s>unumber? ( addr u -- ud flag )
138 :	jwilke	1.78	over [char] ' =
139 :			IF \ a ' alone is rather unusual :-)
140 :			drop char+ c@ 0 true EXIT
141 :			THEN
142 :	jwilke	1.77	base @ >r dpl on getbase
143 :			0. 2swap
144 :			BEGIN ( d addr len )
145 :			dup >r >number dup
146 :			WHILE \ there are characters left
147 :			dup r> -
148 :			WHILE \ the last >number parsed something
149 :			dup 1- dpl ! over c@ [char] . =
150 :			WHILE \ the current char is '.'
151 :			1 /string
152 :			REPEAT THEN \ there are unparseable characters left
153 :			2drop false
154 :			ELSE
155 :			rdrop 2drop true
156 :			THEN
157 :			r> base ! ;
158 :
159 :			\ ouch, this is complicated; there must be a simpler way - anton
160 :			: s>number? ( addr len -- d f )
161 :			\ converts string addr len into d, flag indicates success
162 :			sign? >r
163 :			s>unumber?
164 :			0= IF
165 :			rdrop false
166 :			ELSE \ no characters left, all ok
167 :			r>
168 :			IF
169 :			dnegate
170 :			THEN
171 :			true
172 :			THEN ;
173 :
174 :			: s>number ( addr len -- d )
175 :			\ don't use this, there is no way to tell success
176 :			s>number? drop ;
177 :
178 :			: snumber? ( c-addr u -- 0 / n -1 / d 0> )
179 :			s>number? 0=
180 :			IF
181 :			2drop false EXIT
182 :			THEN
183 :			dpl @ dup 0< IF
184 :			nip
185 :			ELSE
186 :			1+
187 :			THEN ;
188 :
189 :			: number? ( string -- string 0 / n -1 / d 0> )
190 :			dup >r count snumber? dup if
191 :			rdrop
192 :			else
193 :			r> swap
194 :			then ;
195 :
196 :			: number ( string -- d )
197 :			number? ?dup 0= abort" ?" 0<
198 :			IF
199 :			s>d
200 :			THEN ;
201 :
202 :			[THEN]
203 :	anton	1.48
204 :	jwilke	1.52	hex \ the defualt base for the cross-compiler is hex !!
205 :	jwilke	1.78	\ Warnings off
206 :	jwilke	1.52
207 :			\ words that are generaly useful
208 :
209 :	pazsan	1.59	: KB 400 * ;
210 :	jwilke	1.52	: >wordlist ( vocabulary-xt -- wordlist-struct )
211 :			also execute get-order swap >r 1- set-order r> ;
212 :
213 :			: umax 2dup u< IF swap THEN drop ;
214 :			: umin 2dup u> IF swap THEN drop ;
215 :	anton	1.1
216 :	pazsan	1.23	: string, ( c-addr u -- )
217 :			\ puts down string as cstring
218 :			dup c, here swap chars dup allot move ;
219 :	pazsan	1.5
220 :	jwilke	1.77	: ," [char] " parse string, ;
221 :
222 :	jwilke	1.52	: SetValue ( n -- <name> )
223 :	pazsan	1.54	\G Same behaviour as "Value" if the <name> is not defined
224 :			\G Same behaviour as "to" if <name> is defined
225 :	jwilke	1.52	\G SetValue searches in the current vocabulary
226 :	jwilke	1.68	save-input bl word >r restore-input throw r> count
227 :			get-current search-wordlist
228 :			IF drop >r
229 :			\ we have to set current to be topmost context wordlist
230 :			get-order get-order get-current swap 1+ set-order
231 :			r> ['] to execute
232 :	jwilke	1.74	set-order
233 :	jwilke	1.68	ELSE Value THEN ;
234 :	jwilke	1.52
235 :			: DefaultValue ( n -- <name> )
236 :	pazsan	1.54	\G Same behaviour as "Value" if the <name> is not defined
237 :			\G DefaultValue searches in the current vocabulary
238 :	jwilke	1.52	save-input bl word >r restore-input throw r> count
239 :			get-current search-wordlist
240 :	pazsan	1.56	IF bl word drop 2drop ELSE Value THEN ;
241 :	anton	1.1
242 :			hex
243 :
244 :	jwilke	1.52	\ 1 Constant Cross-Flag \ to check whether assembler compiler plug-ins are
245 :			\ for cross-compiling
246 :			\ No! we use "[IFUNDEF]" there to find out whether we are target compiling!!!
247 :
248 :			: comment? ( c-addr u -- c-addr u )
249 :			2dup s" (" compare 0=
250 :			IF postpone (
251 :			ELSE 2dup s" \" compare 0= IF postpone \ THEN
252 :			THEN ;
253 :
254 :			\ Begin CROSS COMPILER:
255 :
256 :	jwilke	1.74	\ debugging
257 :	jwilke	1.52
258 :	jwilke	1.74	0 [IF]
259 :
260 :			This implements debugflags for the cross compiler and the compiled
261 :			images. It works identical to the has-flags in the environment.
262 :			The debugflags are defined in a vocabluary. If the word exists and
263 :			its value is true, the flag is switched on.
264 :
265 :			[THEN]
266 :
267 :	jwilke	1.77	>CROSS
268 :
269 :	jwilke	1.74	Vocabulary debugflags \ debug flags for cross
270 :			also debugflags get-order over
271 :			Constant debugflags-wl
272 :			set-order previous
273 :
274 :			: DebugFlag
275 :			get-current >r debugflags-wl set-current
276 :			SetValue
277 :			r> set-current ;
278 :
279 :			: Debug? ( adr u -- flag )
280 :			\G return true if debug flag is defined or switched on
281 :			debugflags-wl search-wordlist
282 :			IF EXECUTE
283 :			ELSE false THEN ;
284 :
285 :			: D? ( <name> -- flag )
286 :			\G return true if debug flag is defined or switched on
287 :			\G while compiling we do not return the current value but
288 :			bl word count debug? ;
289 :
290 :			: [d?]
291 :			\G compile the value-xt so the debug flag can be switched
292 :			\G the flag must exist!
293 :			bl word count debugflags-wl search-wordlist
294 :			IF compile,
295 :			ELSE -1 ABORT" unknown debug flag"
296 :			\ POSTPONE false
297 :			THEN ; immediate
298 :	pazsan	1.54
299 :	jwilke	1.77	\ \ -------------------- source file
300 :
301 :			decimal
302 :
303 :			Variable cross-file-list
304 :			0 cross-file-list !
305 :			Variable target-file-list
306 :			0 target-file-list !
307 :			Variable host-file-list
308 :			0 host-file-list !
309 :
310 :			cross-file-list Value file-list
311 :			0 Value source-desc
312 :
313 :			\ file loading
314 :
315 :			: >fl-id 1 cells + ;
316 :			: >fl-name 2 cells + ;
317 :
318 :			Variable filelist 0 filelist !
319 :			Create NoFile ," #load-file#"
320 :
321 :			: loadfile ( -- adr )
322 :			source-desc ?dup IF >fl-name ELSE NoFile THEN ;
323 :
324 :			: sourcefilename ( -- adr len )
325 :			loadfile count ;
326 :
327 :			\ANSI : sourceline# 0 ;
328 :
329 :			\ \ -------------------- path handling from kernel/paths.fs
330 :
331 :			\ paths.fs path file handling 03may97jaw
332 :
333 :			\ -Changing the search-path:
334 :			\ fpath+ <path> adds a directory to the searchpath
335 :			\ fpath= <path>\|<path> makes complete now searchpath
336 :			\ seperator is \|
337 :			\ .fpath displays the search path
338 :			\ remark I:
339 :			\ a ./ in the beginning of filename is expanded to the directory the
340 :			\ current file comes from. ./ can also be included in the search-path!
341 :			\ ~+/ loads from the current working directory
342 :
343 :			\ remark II:
344 :			\ if there is no sufficient space for the search path increase it!
345 :
346 :
347 :			\ -Creating custom paths:
348 :
349 :			\ It is possible to use the search mechanism on yourself.
350 :
351 :			\ Make a buffer for the path:
352 :			\ create mypath 100 chars , \ maximum length (is checked)
353 :			\ 0 , \ real len
354 :			\ 100 chars allot \ space for path
355 :			\ use the same functions as above with:
356 :			\ mypath path+
357 :			\ mypath path=
358 :			\ mypath .path
359 :
360 :			\ do a open with the search path:
361 :			\ open-path-file ( adr len path -- fd adr len ior )
362 :			\ the file is opened read-only; if the file is not found an error is generated
363 :
364 :			\ questions to: wilke@jwdt.com
365 :
366 :			[IFUNDEF] +place
367 :			: +place ( adr len adr )
368 :			2dup >r >r
369 :			dup c@ char+ + swap move
370 :			r> r> dup c@ rot + swap c! ;
371 :			[THEN]
372 :
373 :			[IFUNDEF] place
374 :			: place ( c-addr1 u c-addr2 )
375 :			2dup c! char+ swap move ;
376 :			[THEN]
377 :
378 :			\ if we have path handling, use this and the setup of it
379 :			[IFUNDEF] open-fpath-file
380 :
381 :			create sourcepath 1024 chars , 0 , 1024 chars allot \ !! make this dynamic
382 :			sourcepath value fpath
383 :
384 :			: also-path ( adr len path^ -- )
385 :			>r
386 :			\ len check
387 :			r@ cell+ @ over + r@ @ u> ABORT" path buffer too small!"
388 :			\ copy into
389 :			tuck r@ cell+ dup @ cell+ + swap cmove
390 :			\ make delimiter
391 :			0 r@ cell+ dup @ cell+ + 2 pick + c! 1 + r> cell+ +!
392 :			;
393 :
394 :			: only-path ( adr len path^ -- )
395 :			dup 0 swap cell+ ! also-path ;
396 :
397 :			: path+ ( path-addr "dir" -- ) \ gforth
398 :			\G Add the directory @var{dir} to the search path @var{path-addr}.
399 :			name rot also-path ;
400 :
401 :			: fpath+ ( "dir" ) \ gforth
402 :			\G Add directory @var{dir} to the Forth search path.
403 :			fpath path+ ;
404 :
405 :			: path= ( path-addr "dir1\|dir2\|dir3" ) \ gforth
406 :			\G Make a complete new search path; the path separator is \|.
407 :			name 2dup bounds ?DO i c@ [char] \| = IF 0 i c! THEN LOOP
408 :			rot only-path ;
409 :
410 :			: fpath= ( "dir1\|dir2\|dir3" ) \ gforth
411 :			\G Make a complete new Forth search path; the path separator is \|.
412 :			fpath path= ;
413 :
414 :			: path>counted cell+ dup cell+ swap @ ;
415 :
416 :			: next-path ( adr len -- adr2 len2 )
417 :			2dup 0 scan
418 :			dup 0= IF 2drop 0 -rot 0 -rot EXIT THEN
419 :			>r 1+ -rot r@ 1- -rot
420 :			r> - ;
421 :
422 :			: previous-path ( path^ -- )
423 :			dup path>counted
424 :			BEGIN tuck dup WHILE repeat ;
425 :
426 :			: .path ( path-addr -- ) \ gforth
427 :			\G Display the contents of the search path @var{path-addr}.
428 :			path>counted
429 :			BEGIN next-path dup WHILE type space REPEAT 2drop 2drop ;
430 :
431 :			: .fpath ( -- ) \ gforth
432 :			\G Display the contents of the Forth search path.
433 :			fpath .path ;
434 :
435 :			: absolut-path? ( addr u -- flag ) \ gforth
436 :			\G A path is absolute if it starts with a / or a ~ (~ expansion),
437 :			\G or if it is in the form ./*, extended regexp: ^[/~]\|./, or if
438 :			\G it has a colon as second character ("C:..."). Paths simply
439 :			\G containing a / are not absolute!
440 :			2dup 2 u> swap 1+ c@ [char] : = and >r \ dos absoulte: c:/....
441 :			over c@ [char] / = >r
442 :			over c@ [char] ~ = >r
443 :			\ 2dup 3 min S" ../" compare 0= r> or >r \ not catered for in expandtopic
444 :			2 min S" ./" compare 0=
445 :			r> r> r> or or or ;
446 :
447 :			Create ofile 0 c, 255 chars allot
448 :			Create tfile 0 c, 255 chars allot
449 :
450 :			: pathsep? dup [char] / = swap [char] \ = or ;
451 :
452 :			: need/ ofile dup c@ + c@ pathsep? 0= IF s" /" ofile +place THEN ;
453 :
454 :			: extractpath ( adr len -- adr len2 )
455 :			BEGIN dup WHILE 1-
456 :			2dup + c@ pathsep? IF EXIT THEN
457 :			REPEAT ;
458 :
459 :			: remove~+ ( -- )
460 :			ofile count 3 min s" ~+/" compare 0=
461 :			IF
462 :			ofile count 3 /string ofile place
463 :			THEN ;
464 :
465 :			: expandtopic ( -- ) \ stack effect correct? - anton
466 :			\ expands "./" into an absolute name
467 :			ofile count 2 min s" ./" compare 0=
468 :			IF
469 :			ofile count 1 /string tfile place
470 :			0 ofile c! sourcefilename extractpath ofile place
471 :			ofile c@ IF need/ THEN
472 :			tfile count over c@ pathsep? IF 1 /string THEN
473 :			ofile +place
474 :			THEN ;
475 :
476 :			: compact.. ( adr len -- adr2 len2 )
477 :	pazsan	1.85	\ deletes phrases like "xy/.." out of our directory name 2dec97jaw
478 :			over swap
479 :			BEGIN dup WHILE
480 :			dup >r '/ scan 2dup 4 min s" /../" compare 0=
481 :			IF
482 :			dup r> - >r 4 /string over r> + 4 -
483 :			swap 2dup + >r move dup r> over -
484 :			ELSE
485 :			rdrop dup 1 min /string
486 :			THEN
487 :			REPEAT drop over - ;
488 :	jwilke	1.77
489 :			: reworkdir ( -- )
490 :			remove~+
491 :			ofile count compact..
492 :			nip ofile c! ;
493 :
494 :			: open-ofile ( -- fid ior )
495 :			\G opens the file whose name is in ofile
496 :			expandtopic reworkdir
497 :			ofile count r/o open-file ;
498 :
499 :			: check-path ( adr1 len1 adr2 len2 -- fd 0 \| 0 <>0 )
500 :			0 ofile ! >r >r ofile place need/
501 :			r> r> ofile +place
502 :			open-ofile ;
503 :
504 :			: open-path-file ( addr1 u1 path-addr -- wfileid addr2 u2 0 \| ior ) \ gforth
505 :			\G Look in path @var{path-addr} for the file specified by @var{addr1 u1}.
506 :			\G If found, the resulting path and an open file descriptor
507 :			\G are returned. If the file is not found, @var{ior} is non-zero.
508 :			>r
509 :			2dup absolut-path?
510 :			IF rdrop
511 :			ofile place open-ofile
512 :			dup 0= IF >r ofile count r> THEN EXIT
513 :			ELSE r> path>counted
514 :			BEGIN next-path dup
515 :			WHILE 5 pick 5 pick check-path
516 :			0= IF >r 2drop 2drop r> ofile count 0 EXIT ELSE drop THEN
517 :			REPEAT
518 :			2drop 2drop 2drop -38
519 :			THEN ;
520 :
521 :			: open-fpath-file ( addr1 u1 -- wfileid addr2 u2 0 \| ior ) \ gforth
522 :			\G Look in the Forth search path for the file specified by @var{addr1 u1}.
523 :			\G If found, the resulting path and an open file descriptor
524 :			\G are returned. If the file is not found, @var{ior} is non-zero.
525 :			fpath open-path-file ;
526 :
527 :			fpath= ~+
528 :
529 :			[THEN]
530 :
531 :			\ \ -------------------- include require 13may99jaw
532 :
533 :			>CROSS
534 :
535 :			: add-included-file ( adr len -- adr )
536 :			dup >fl-name char+ allocate throw >r
537 :			file-list @ r@ ! r@ file-list !
538 :			r@ >fl-name place r> ;
539 :
540 :			: included? ( c-addr u -- f )
541 :			file-list
542 :			BEGIN @ dup
543 :			WHILE >r 2dup r@ >fl-name count compare 0=
544 :			IF rdrop 2drop true EXIT THEN
545 :			r>
546 :			REPEAT
547 :			2drop drop false ;
548 :
549 :			false DebugFlag showincludedfiles
550 :
551 :			: included1 ( fd adr u -- )
552 :			\ include file adr u / fd
553 :			\ we don't use fd with include-file, because the forth system
554 :			\ doesn't know the name of the file to get a nice error report
555 :			[d?] showincludedfiles
556 :			IF cr ." Including: " 2dup type ." ..." THEN
557 :			rot close-file throw
558 :			source-desc >r
559 :			add-included-file to source-desc
560 :			sourcefilename
561 :			['] included catch
562 :			r> to source-desc
563 :			throw ;
564 :
565 :			: included ( adr len -- )
566 :			cross-file-list to file-list
567 :			open-fpath-file throw
568 :			included1 ;
569 :
570 :			: required ( adr len -- )
571 :			cross-file-list to file-list
572 :			open-fpath-file throw \ 2dup cr ." R:" type
573 :			2dup included?
574 :			IF 2drop close-file throw
575 :			ELSE included1
576 :			THEN ;
577 :
578 :			: include bl word count included ;
579 :
580 :			: require bl word count required ;
581 :
582 :	jwilke	1.78	0 [IF]
583 :
584 :	jwilke	1.77	also forth definitions previous
585 :
586 :			: included ( adr len -- ) included ;
587 :
588 :			: required ( adr len -- ) required ;
589 :
590 :			: include include ;
591 :
592 :			: require require ;
593 :
594 :	jwilke	1.78	[THEN]
595 :
596 :	jwilke	1.77	>CROSS
597 :			hex
598 :
599 :			\ \ -------------------- Error Handling 05aug97jaw
600 :
601 :			\ Flags
602 :
603 :			also forth definitions \ these values may be predefined before
604 :			\ the cross-compiler is loaded
605 :
606 :			false DefaultValue stack-warn \ check on empty stack at any definition
607 :			false DefaultValue create-forward-warn \ warn on forward declaration of created words
608 :
609 :			previous >CROSS
610 :
611 :			: .dec
612 :			base @ decimal swap . base ! ;
613 :
614 :			: .sourcepos
615 :			cr sourcefilename type ." :"
616 :			sourceline# .dec ;
617 :
618 :			: warnhead
619 :			\G display error-message head
620 :			\G perhaps with linenumber and filename
621 :			.sourcepos ." Warning: " ;
622 :
623 :			: empty? depth IF .sourcepos ." Stack not empty!" THEN ;
624 :
625 :			stack-warn [IF]
626 :			: defempty? empty? ;
627 :			[ELSE]
628 :			: defempty? ; immediate
629 :			[THEN]
630 :
631 :	jwilke	1.52	\ \ GhostNames Ghosts 9may93jaw
632 :
633 :			\ second name source to search trough list
634 :
635 :			VARIABLE GhostNames
636 :			0 GhostNames !
637 :
638 :			: GhostName ( -- addr )
639 :	jwilke	1.79	align here GhostNames @ , GhostNames ! here 0 ,
640 :	jwilke	1.52	bl word count
641 :			\ 2dup type space
642 :			string, \ !! cfalign ?
643 :			align ;
644 :
645 :			\ Ghost Builder 06oct92py
646 :
647 :			\ <T T> new version with temp variable 10may93jaw
648 :
649 :			VARIABLE VocTemp
650 :
651 :			: <T get-current VocTemp ! also Ghosts definitions ;
652 :			: T> previous VocTemp @ set-current ;
653 :
654 :			hex
655 :			4711 Constant <fwd> 4712 Constant <res>
656 :			4713 Constant <imm> 4714 Constant <do:>
657 :	jwilke	1.75	4715 Constant <skip>
658 :	jwilke	1.52
659 :	jwilke	1.102	\ iForth makes only immediate directly after create
660 :			\ make atonce trick! ?
661 :	pazsan	1.93
662 :	jwilke	1.102	Variable atonce atonce off
663 :	pazsan	1.93
664 :	jwilke	1.102	: NoExec true ABORT" CROSS: Don't execute ghost, or immediate target word" ;
665 :	jwilke	1.52
666 :	jwilke	1.102	: GhostHeader <fwd> , 0 , ['] NoExec , ;
667 :	jwilke	1.52
668 :			: >magic ; \ type of ghost
669 :			: >link cell+ ; \ pointer where ghost is in target, or if unresolved
670 :			\ points to the where we have to resolve (linked-list)
671 :			: >exec cell+ cell+ ; \ execution symantics (while target compiling) of ghost
672 :	jwilke	1.102	: >end 3 cells + ; \ room for additional tags
673 :	jwilke	1.52	\ for builder (create, variable...) words the
674 :			\ execution symantics of words built are placed here
675 :
676 :			Variable executed-ghost \ last executed ghost, needed in tcreate and gdoes>
677 :			Variable last-ghost \ last ghost that is created
678 :			Variable last-header-ghost \ last ghost definitions with header
679 :
680 :			: Make-Ghost ( "name" -- ghost )
681 :			>in @ GhostName swap >in !
682 :			<T Create atonce @ IF immediate atonce off THEN
683 :			here tuck swap ! ghostheader T>
684 :			dup last-ghost !
685 :			DOES> dup executed-ghost ! >exec @ execute ;
686 :
687 :			\ ghost words 14oct92py
688 :			\ changed: 10may93py/jaw
689 :
690 :			: gfind ( string -- ghost true/1 / string false )
691 :			\ searches for string in word-list ghosts
692 :	jwilke	1.77	dup count [ ' ghosts >wordlist ] Literal search-wordlist
693 :	jwilke	1.52	dup IF >r >body nip r> THEN ;
694 :
695 :			: gdiscover ( xt -- ghost true \| xt false )
696 :			GhostNames
697 :			BEGIN @ dup
698 :			WHILE 2dup
699 :			cell+ @ dup >magic @ <fwd> <>
700 :			>r >link @ = r> and
701 :			IF cell+ @ nip true EXIT THEN
702 :			REPEAT
703 :			drop false ;
704 :
705 :			VARIABLE Already
706 :
707 :			: ghost ( "name" -- ghost )
708 :			Already off
709 :	jwilke	1.76	>in @ bl word gfind IF atonce off Already on nip EXIT THEN
710 :	jwilke	1.52	drop >in ! Make-Ghost ;
711 :
712 :			: >ghostname ( ghost -- adr len )
713 :			GhostNames
714 :			BEGIN @ dup
715 :			WHILE 2dup cell+ @ =
716 :			UNTIL nip 2 cells + count
717 :	pazsan	1.54	ELSE 2drop
718 :			\ true abort" CROSS: Ghostnames inconsistent"
719 :			s" ?!?!?!"
720 :	jwilke	1.52	THEN ;
721 :
722 :	jwilke	1.78	: .ghost ( ghost -- ) >ghostname type ;
723 :
724 :	jwilke	1.77	\ ' >ghostname ALIAS @name
725 :	jwilke	1.52
726 :			: forward? ( ghost -- flag )
727 :			>magic @ <fwd> = ;
728 :
729 :	jwilke	1.75	: undefined? ( ghost -- flag )
730 :			>magic @ dup <fwd> = swap <skip> = or ;
731 :
732 :	jwilke	1.52	\ Predefined ghosts 12dec92py
733 :
734 :			ghost 0= drop
735 :			ghost branch ghost ?branch 2drop
736 :			ghost (do) ghost (?do) 2drop
737 :			ghost (for) drop
738 :			ghost (loop) ghost (+loop) 2drop
739 :			ghost (next) drop
740 :			ghost unloop ghost ;S 2drop
741 :			ghost lit ghost (compile) ghost ! 2drop drop
742 :			ghost (does>) ghost noop 2drop
743 :	pazsan	1.97	ghost (.") ghost (S") ghost (ABORT") 2drop drop
744 :	jwilke	1.52	ghost ' drop
745 :			ghost :docol ghost :doesjump ghost :dodoes 2drop drop
746 :	jwilke	1.102	ghost :dovar drop
747 :	jwilke	1.52	ghost over ghost = ghost drop 2drop drop
748 :	jwilke	1.102	ghost - drop
749 :	pazsan	1.54	ghost 2drop drop
750 :			ghost 2dup drop
751 :	jwilke	1.52
752 :			\ \ Parameter for target systems 06oct92py
753 :
754 :			\ we define it ans like...
755 :			wordlist Constant target-environment
756 :
757 :			VARIABLE env-current \ save information of current dictionary to restore with environ>
758 :
759 :			: >ENVIRON get-current env-current ! target-environment set-current ;
760 :			: ENVIRON> env-current @ set-current ;
761 :	pazsan	1.43
762 :	anton	1.48	>TARGET
763 :	pazsan	1.43
764 :	jwilke	1.67	: environment? ( adr len -- [ x ] true \| false )
765 :	jwilke	1.52	target-environment search-wordlist
766 :			IF execute true ELSE false THEN ;
767 :
768 :	jwilke	1.67	: e? bl word count T environment? H 0= ABORT" environment variable not defined!" ;
769 :	jwilke	1.52
770 :	jwilke	1.67	: has? bl word count T environment? H
771 :	jwilke	1.53	IF \ environment variable is present, return its value
772 :			ELSE \ environment variable is not present, return false
773 :	jwilke	1.75	false \ debug true ABORT" arg"
774 :	jwilke	1.53	THEN ;
775 :	jwilke	1.52
776 :			: $has? T environment? H IF ELSE false THEN ;
777 :	anton	1.48
778 :	pazsan	1.54	>ENVIRON get-order get-current swap 1+ set-order
779 :			true SetValue compiler
780 :	pazsan	1.83	true SetValue cross
781 :	pazsan	1.54	true SetValue standard-threading
782 :			>TARGET previous
783 :	jwilke	1.52
784 :	jwilke	1.77	0
785 :			[IFDEF] mach-file mach-file count 1 [THEN]
786 :			[IFDEF] machine-file machine-file 1 [THEN]
787 :			[IF] included hex drop
788 :			[ELSE] cr ." No machine description!" ABORT
789 :			[THEN]
790 :	pazsan	1.43
791 :	jwilke	1.53	>ENVIRON
792 :
793 :	pazsan	1.54	T has? ec H
794 :			[IF]
795 :			false DefaultValue relocate
796 :			false DefaultValue file
797 :			false DefaultValue OS
798 :			false DefaultValue prims
799 :			false DefaultValue floating
800 :			false DefaultValue glocals
801 :			false DefaultValue dcomps
802 :			false DefaultValue hash
803 :			false DefaultValue xconds
804 :			false DefaultValue header
805 :			[THEN]
806 :
807 :			true DefaultValue interpreter
808 :			true DefaultValue ITC
809 :			false DefaultValue rom
810 :	jwilke	1.73	true DefaultValue standardthreading
811 :	jwilke	1.53
812 :	jwilke	1.52	>TARGET
813 :	jwilke	1.53	s" relocate" T environment? H
814 :			[IF] SetValue NIL
815 :			[ELSE] >ENVIRON T NIL H SetValue relocate
816 :			[THEN]
817 :	pazsan	1.43
818 :			>CROSS
819 :
820 :	jwilke	1.52	\ \ Create additional parameters 19jan95py
821 :	pazsan	1.19
822 :	jwilke	1.71	\ currently cross only works for host machines with address-unit-bits
823 :			\ eual to 8 because of s! and sc!
824 :			\ but I start to query the environment just to modularize a little bit
825 :
826 :			: check-address-unit-bits ( -- )
827 :			\ s" ADDRESS-UNIT-BITS" environment?
828 :			\ IF 8 <> ELSE true THEN
829 :			\ ABORT" ADDRESS-UNIT-BITS unknown or not equal to 8!"
830 :
831 :			\ shit, this doesn't work because environment? is only defined for
832 :			\ gforth.fi and not kernl???.fi
833 :			;
834 :
835 :			check-address-unit-bits
836 :			8 Constant bits/byte \ we define: byte is address-unit
837 :
838 :			1 bits/byte lshift Constant maxbyte
839 :	jwilke	1.77	\ this sets byte size for the target machine, (probably right guess) jaw
840 :	jwilke	1.67
841 :	pazsan	1.19	T
842 :	jwilke	1.71	NIL Constant TNIL
843 :			cell Constant tcell
844 :			cell<< Constant tcell<<
845 :			cell>bit Constant tcell>bit
846 :			bits/char Constant tbits/char
847 :			bits/char H bits/byte T /
848 :			Constant tchar
849 :			float Constant tfloat
850 :			1 bits/char lshift Constant tmaxchar
851 :			[IFUNDEF] bits/byte
852 :			8 Constant tbits/byte
853 :			[ELSE]
854 :			bits/byte Constant tbits/byte
855 :			[THEN]
856 :	pazsan	1.19	H
857 :	pazsan	1.81	tbits/char bits/byte / Constant tbyte
858 :	jwilke	1.71
859 :	pazsan	1.19
860 :	anton	1.48	\ Variables 06oct92py
861 :
862 :			Variable image
863 :			Variable tlast TNIL tlast ! \ Last name field
864 :			Variable tlastcfa \ Last code field
865 :			Variable tdoes \ Resolve does> calls
866 :			Variable bit$
867 :	jwilke	1.52
868 :			\ statistics 10jun97jaw
869 :
870 :			Variable headers-named 0 headers-named !
871 :			Variable user-vars 0 user-vars !
872 :
873 :	jwilke	1.67	: target>bitmask-size ( u1 -- u2 )
874 :			1- tcell>bit rshift 1+ ;
875 :
876 :	jwilke	1.102	: allocatetarget ( size --- adr )
877 :	jwilke	1.67	dup allocate ABORT" CROSS: No memory for target"
878 :			swap over swap erase ;
879 :	jwilke	1.52
880 :	pazsan	1.54	\ \ memregion.fs
881 :	jwilke	1.52
882 :
883 :			Variable last-defined-region \ pointer to last defined region
884 :			Variable region-link \ linked list with all regions
885 :			Variable mirrored-link \ linked list for mirrored regions
886 :			0 dup mirrored-link ! region-link !
887 :
888 :
889 :	jwilke	1.67	: >rname 6 cells + ;
890 :			: >rbm 5 cells + ;
891 :			: >rmem 4 cells + ;
892 :			: >rlink 3 cells + ;
893 :	jwilke	1.52	: >rdp 2 cells + ;
894 :			: >rlen cell+ ;
895 :			: >rstart ;
896 :
897 :
898 :			: region ( addr len -- ) \G create a new region
899 :			\ check whether predefined region exists
900 :			save-input bl word find >r >r restore-input throw r> r> 0=
901 :			IF \ make region
902 :			drop
903 :			save-input create restore-input throw
904 :			here last-defined-region !
905 :			over ( startaddr ) , ( length ) , ( dp ) ,
906 :	jwilke	1.67	region-link linked 0 , 0 , bl word count string,
907 :	jwilke	1.52	ELSE \ store new parameters in region
908 :			bl word drop
909 :			>body >r r@ last-defined-region !
910 :	jwilke	1.67	r@ >rlen ! dup r@ >rstart ! r> >rdp !
911 :	jwilke	1.52	THEN ;
912 :
913 :			: borders ( region -- startaddr endaddr ) \G returns lower and upper region border
914 :	jwilke	1.67	dup >rstart @ swap >rlen @ over + ;
915 :	jwilke	1.52
916 :			: extent ( region -- startaddr len ) \G returns the really used area
917 :	jwilke	1.67	dup >rstart @ swap >rdp @ over - ;
918 :	jwilke	1.52
919 :			: area ( region -- startaddr totallen ) \G returns the total area
920 :	jwilke	1.79	dup >rstart @ swap >rlen @ ;
921 :	jwilke	1.52
922 :			: mirrored \G mark a region as mirrored
923 :			mirrored-link
924 :	jwilke	1.68	align linked last-defined-region @ , ;
925 :	jwilke	1.52
926 :	jwilke	1.67	: .addr ( u -- )
927 :			\G prints a 16 or 32 Bit nice hex value
928 :	jwilke	1.52	base @ >r hex
929 :			tcell 2 u>
930 :	jwilke	1.77	IF s>d <# # # # # [char] . hold # # # # #> type
931 :	jwilke	1.52	ELSE s>d <# # # # # # #> type
932 :			THEN r> base ! ;
933 :
934 :			: .regions \G display region statistic
935 :
936 :			\ we want to list the regions in the right order
937 :			\ so first collect all regions on stack
938 :			0 region-link @
939 :			BEGIN dup WHILE dup @ REPEAT drop
940 :			BEGIN dup
941 :	jwilke	1.67	WHILE cr
942 :			0 >rlink - >r
943 :			r@ >rname count tuck type
944 :	jwilke	1.52	12 swap - 0 max spaces space
945 :	jwilke	1.67	." Start: " r@ >rstart @ dup .addr space
946 :			." End: " r@ >rlen @ + .addr space
947 :			." DP: " r> >rdp @ .addr
948 :	jwilke	1.52	REPEAT drop
949 :	jwilke	1.53	s" rom" T $has? H 0= ?EXIT
950 :	jwilke	1.52	cr ." Mirrored:"
951 :			mirrored-link @
952 :			BEGIN dup
953 :	jwilke	1.67	WHILE space dup cell+ @ >rname count type @
954 :	jwilke	1.52	REPEAT drop cr
955 :			;
956 :
957 :			\ -------- predefined regions
958 :
959 :			0 0 region address-space
960 :			\ total memory addressed and used by the target system
961 :
962 :			0 0 region dictionary
963 :			\ rom area for the compiler
964 :
965 :	jwilke	1.53	T has? rom H
966 :	jwilke	1.52	[IF]
967 :			0 0 region ram-dictionary mirrored
968 :			\ ram area for the compiler
969 :			[ELSE]
970 :			' dictionary ALIAS ram-dictionary
971 :			[THEN]
972 :
973 :			0 0 region return-stack
974 :
975 :			0 0 region data-stack
976 :
977 :			0 0 region tib-region
978 :
979 :			' dictionary ALIAS rom-dictionary
980 :
981 :
982 :	jwilke	1.102	: setup-target ( -- ) \G initialize targets memory space
983 :	jwilke	1.53	s" rom" T $has? H
984 :	jwilke	1.52	IF \ check for ram and rom...
985 :	jwilke	1.72	\ address-space area nip 0<>
986 :	jwilke	1.67	ram-dictionary area nip 0<>
987 :			rom-dictionary area nip 0<>
988 :	jwilke	1.72	and 0=
989 :	jwilke	1.52	ABORT" CROSS: define address-space, rom- , ram-dictionary, with rom-support!"
990 :			THEN
991 :			address-space area nip
992 :			IF
993 :			address-space area
994 :			ELSE
995 :			dictionary area
996 :			THEN
997 :	jwilke	1.67	nip 0=
998 :	jwilke	1.52	ABORT" CROSS: define at least address-space or dictionary!!"
999 :	jwilke	1.67
1000 :			\ allocate target for each region
1001 :			region-link
1002 :			BEGIN @ dup
1003 :			WHILE dup
1004 :			0 >rlink - >r
1005 :			r@ >rlen @
1006 :			IF \ allocate mem
1007 :			r@ >rlen @ dup
1008 :
1009 :			allocatetarget dup image !
1010 :			r@ >rmem !
1011 :
1012 :			target>bitmask-size allocatetarget
1013 :	jwilke	1.72	dup bit$ !
1014 :	jwilke	1.67	r> >rbm !
1015 :
1016 :			ELSE r> drop THEN
1017 :	jwilke	1.72	REPEAT drop ;
1018 :
1019 :	jwilke	1.102	\ MakeKernal 22feb99jaw
1020 :	jwilke	1.72
1021 :			: makekernel ( targetsize -- targetsize )
1022 :			dup dictionary >rlen ! setup-target ;
1023 :
1024 :			>MINIMAL
1025 :			: makekernel makekernel ;
1026 :			>CROSS
1027 :	jwilke	1.52
1028 :	pazsan	1.54	\ \ switched tdp for rom support 03jun97jaw
1029 :	jwilke	1.52
1030 :			\ second value is here to store some maximal value for statistics
1031 :			\ tempdp is also embedded here but has nothing to do with rom support
1032 :			\ (needs switched dp)
1033 :
1034 :			variable tempdp 0 , \ temporary dp for resolving
1035 :			variable tempdp-save
1036 :
1037 :			0 [IF]
1038 :			variable romdp 0 , \ Dictionary-Pointer for ramarea
1039 :			variable ramdp 0 , \ Dictionary-Pointer for romarea
1040 :
1041 :			\
1042 :			variable sramdp \ start of ram-area for forth
1043 :			variable sromdp \ start of rom-area for forth
1044 :
1045 :			[THEN]
1046 :
1047 :
1048 :			0 value tdp
1049 :			variable fixed \ flag: true: no automatic switching
1050 :			\ false: switching is done automatically
1051 :
1052 :			\ Switch-Policy:
1053 :			\
1054 :			\ a header is always compiled into rom
1055 :			\ after a created word (create and variable) compilation goes to ram
1056 :			\
1057 :			\ Be careful: If you want to make the data behind create into rom
1058 :			\ you have to put >rom before create!
1059 :
1060 :			variable constflag constflag off
1061 :
1062 :	jwilke	1.67	: activate ( region -- )
1063 :			\G next code goes to this region
1064 :			>rdp to tdp ;
1065 :
1066 :	jwilke	1.52	: (switchram)
1067 :	jwilke	1.53	fixed @ ?EXIT s" rom" T $has? H 0= ?EXIT
1068 :	jwilke	1.67	ram-dictionary activate ;
1069 :	jwilke	1.52
1070 :			: switchram
1071 :			constflag @
1072 :			IF constflag off ELSE (switchram) THEN ;
1073 :
1074 :			: switchrom
1075 :	jwilke	1.67	fixed @ ?EXIT rom-dictionary activate ;
1076 :	jwilke	1.52
1077 :			: >tempdp ( addr -- )
1078 :			tdp tempdp-save ! tempdp to tdp tdp ! ;
1079 :			: tempdp> ( -- )
1080 :			tempdp-save @ to tdp ;
1081 :
1082 :			: >ram fixed off (switchram) fixed on ;
1083 :			: >rom fixed off switchrom fixed on ;
1084 :			: >auto fixed off switchrom ;
1085 :
1086 :
1087 :
1088 :			\ : romstart dup sromdp ! romdp ! ;
1089 :			\ : ramstart dup sramdp ! ramdp ! ;
1090 :
1091 :	jwilke	1.67	\ default compilation goes to rom
1092 :	jwilke	1.52	\ when romable support is off, only the rom switch is used (!!)
1093 :			>auto
1094 :
1095 :	anton	1.48	: there tdp @ ;
1096 :
1097 :	jwilke	1.52	>TARGET
1098 :	anton	1.48
1099 :	jwilke	1.52	\ \ Target Memory Handling
1100 :	anton	1.1
1101 :			\ Byte ordering and cell size 06oct92py
1102 :
1103 :	pazsan	1.19	: cell+ tcell + ;
1104 :			: cells tcell<< lshift ;
1105 :	jwilke	1.71	: chars tchar * ;
1106 :			: char+ tchar + ;
1107 :	pazsan	1.19	: floats tfloat * ;
1108 :	anton	1.6
1109 :	anton	1.1	>CROSS
1110 :	pazsan	1.19	: cell/ tcell<< rshift ;
1111 :	anton	1.1	>TARGET
1112 :			20 CONSTANT bl
1113 :	jwilke	1.52	\ TNIL Constant NIL
1114 :	anton	1.1
1115 :			>CROSS
1116 :
1117 :	pazsan	1.20	bigendian
1118 :			[IF]
1119 :	jwilke	1.52	: S! ( n addr -- ) >r s>d r> tcell bounds swap 1-
1120 :	pazsan	1.20	DO maxbyte ud/mod rot I c! -1 +LOOP 2drop ;
1121 :	jwilke	1.52	: S@ ( addr -- n ) >r 0 0 r> tcell bounds
1122 :	pazsan	1.20	DO maxbyte * swap maxbyte um* rot + swap I c@ + swap LOOP d>s ;
1123 :	pazsan	1.57	: Sc! ( n addr -- ) >r s>d r> tchar bounds swap 1-
1124 :			DO maxbyte ud/mod rot I c! -1 +LOOP 2drop ;
1125 :			: Sc@ ( addr -- n ) >r 0 0 r> tchar bounds
1126 :			DO maxbyte * swap maxbyte um* rot + swap I c@ + swap LOOP d>s ;
1127 :	pazsan	1.19	[ELSE]
1128 :	jwilke	1.52	: S! ( n addr -- ) >r s>d r> tcell bounds
1129 :	pazsan	1.20	DO maxbyte ud/mod rot I c! LOOP 2drop ;
1130 :	jwilke	1.52	: S@ ( addr -- n ) >r 0 0 r> tcell bounds swap 1-
1131 :	pazsan	1.20	DO maxbyte * swap maxbyte um* rot + swap I c@ + swap -1 +LOOP d>s ;
1132 :	pazsan	1.57	: Sc! ( n addr -- ) >r s>d r> tchar bounds
1133 :			DO maxbyte ud/mod rot I c! LOOP 2drop ;
1134 :			: Sc@ ( addr -- n ) >r 0 0 r> tchar bounds swap 1-
1135 :			DO maxbyte * swap maxbyte um* rot + swap I c@ + swap -1 +LOOP d>s ;
1136 :	anton	1.1	[THEN]
1137 :
1138 :	jwilke	1.67	: taddr>region ( taddr -- region \| 0 )
1139 :			\G finds for a target-address the correct region
1140 :			\G returns 0 if taddr is not in range of a target memory region
1141 :			region-link
1142 :			BEGIN @ dup
1143 :			WHILE dup >r
1144 :			0 >rlink - >r
1145 :			r@ >rlen @
1146 :			IF dup r@ borders within
1147 :			IF r> r> drop nip EXIT THEN
1148 :			THEN
1149 :			r> drop
1150 :			r>
1151 :			REPEAT
1152 :			2drop 0 ;
1153 :
1154 :			: (>regionimage) ( taddr -- 'taddr )
1155 :			dup
1156 :			\ find region we want to address
1157 :			taddr>region dup 0= ABORT" Address out of range!"
1158 :			>r
1159 :			\ calculate offset in region
1160 :			r@ >rstart @ -
1161 :			\ add regions real address in our memory
1162 :			r> >rmem @ + ;
1163 :
1164 :	anton	1.1	\ Bit string manipulation 06oct92py
1165 :			\ 9may93jaw
1166 :			CREATE Bittable 80 c, 40 c, 20 c, 10 c, 8 c, 4 c, 2 c, 1 c,
1167 :			: bits ( n -- n ) chars Bittable + c@ ;
1168 :
1169 :			: >bit ( addr n -- c-addr mask ) 8 /mod rot + swap bits ;
1170 :			: +bit ( addr n -- ) >bit over c@ or swap c! ;
1171 :	pazsan	1.4	: -bit ( addr n -- ) >bit invert over c@ and swap c! ;
1172 :	jwilke	1.67
1173 :	jwilke	1.84	: (relon) ( taddr -- )
1174 :			[ [IFDEF] fd-relocation-table ]
1175 :			s" +" fd-relocation-table write-file throw
1176 :			dup s>d <# #s #> fd-relocation-table write-line throw
1177 :			[ [THEN] ]
1178 :			bit$ @ swap cell/ +bit ;
1179 :
1180 :			: (reloff) ( taddr -- )
1181 :			[ [IFDEF] fd-relocation-table ]
1182 :			s" -" fd-relocation-table write-file throw
1183 :			dup s>d <# #s #> fd-relocation-table write-line throw
1184 :			[ [THEN] ]
1185 :			bit$ @ swap cell/ -bit ;
1186 :	jwilke	1.67
1187 :			: (>image) ( taddr -- absaddr ) image @ + ;
1188 :
1189 :			DEFER >image
1190 :			DEFER relon
1191 :			DEFER reloff
1192 :			DEFER correcter
1193 :
1194 :			T has? relocate H
1195 :			[IF]
1196 :			' (relon) IS relon
1197 :			' (reloff) IS reloff
1198 :			' (>image) IS >image
1199 :			[ELSE]
1200 :			' drop IS relon
1201 :			' drop IS reloff
1202 :	jwilke	1.68	' (>regionimage) IS >image
1203 :	jwilke	1.67	[THEN]
1204 :	anton	1.1
1205 :			\ Target memory access 06oct92py
1206 :
1207 :			: align+ ( taddr -- rest )
1208 :	anton	1.48	tcell tuck 1- and - [ tcell 1- ] Literal and ;
1209 :	anton	1.22	: cfalign+ ( taddr -- rest )
1210 :	pazsan	1.39	\ see kernel.fs:cfaligned
1211 :	pazsan	1.43	/maxalign tuck 1- and - [ /maxalign 1- ] Literal and ;
1212 :	anton	1.1
1213 :			>TARGET
1214 :			: aligned ( taddr -- ta-addr ) dup align+ + ;
1215 :			\ assumes cell alignment granularity (as GNU C)
1216 :
1217 :	anton	1.22	: cfaligned ( taddr1 -- taddr2 )
1218 :	pazsan	1.39	\ see kernel.fs
1219 :	anton	1.22	dup cfalign+ + ;
1220 :
1221 :	jwilke	1.52	: @ ( taddr -- w ) >image S@ ;
1222 :			: ! ( w taddr -- ) >image S! ;
1223 :	pazsan	1.57	: c@ ( taddr -- char ) >image Sc@ ;
1224 :			: c! ( char taddr -- ) >image Sc! ;
1225 :	anton	1.7	: 2@ ( taddr -- x1 x2 ) T dup cell+ @ swap @ H ;
1226 :	pazsan	1.82	: 2! ( x1 x2 taddr -- ) T tuck ! cell+ ! H ;
1227 :	anton	1.1
1228 :			\ Target compilation primitives 06oct92py
1229 :			\ included A! 16may93jaw
1230 :
1231 :			: here ( -- there ) there ;
1232 :			: allot ( n -- ) tdp +! ;
1233 :	jwilke	1.78	: , ( w -- ) T here H tcell T allot ! H ;
1234 :			: c, ( char -- ) T here H tchar T allot c! H ;
1235 :			: align ( -- ) T here H align+ 0 ?DO bl T c, H tchar +LOOP ;
1236 :	anton	1.22	: cfalign ( -- )
1237 :	jwilke	1.78	T here H cfalign+ 0 ?DO bl T c, H tchar +LOOP ;
1238 :	anton	1.1
1239 :	jwilke	1.71	: >address dup 0>= IF tbyte / THEN ; \ ?? jaw
1240 :	pazsan	1.59	: A! swap >address swap dup relon T ! H ;
1241 :			: A, ( w -- ) >address T here H relon T , H ;
1242 :	anton	1.1
1243 :			>CROSS
1244 :
1245 :	jwilke	1.52	: tcmove ( source dest len -- )
1246 :			\G cmove in target memory
1247 :	pazsan	1.57	tchar * bounds
1248 :	jwilke	1.52	?DO dup T c@ H I T c! H 1+
1249 :	pazsan	1.57	tchar +LOOP drop ;
1250 :	anton	1.1
1251 :	jwilke	1.67	\ \ Load Assembler
1252 :
1253 :	anton	1.1	>TARGET
1254 :	jwilke	1.74	H also Forth definitions
1255 :	anton	1.1
1256 :	jwilke	1.77	: X bl word count [ ' target >wordlist ] Literal search-wordlist
1257 :	jwilke	1.52	IF state @ IF compile,
1258 :			ELSE execute THEN
1259 :	jwilke	1.77	ELSE -1 ABORT" Cross: access method not supported!"
1260 :			THEN ; immediate
1261 :	anton	1.1
1262 :	jwilke	1.52	[IFDEF] asm-include asm-include [THEN] hex
1263 :	anton	1.1
1264 :	jwilke	1.52	previous
1265 :			>CROSS H
1266 :	anton	1.1
1267 :	jwilke	1.52	\ \ -------------------- Compiler Plug Ins 01aug97jaw
1268 :	anton	1.1
1269 :	jwilke	1.102	\ Compiler States
1270 :
1271 :			Variable comp-state
1272 :			0 Constant interpreting
1273 :			1 Constant compiling
1274 :			2 Constant resolving
1275 :			3 Constant assembling
1276 :
1277 :			Defer lit, ( n -- )
1278 :			Defer alit, ( n -- )
1279 :
1280 :			Defer branch, ( target-addr -- ) \ compiles a branch
1281 :			Defer ?branch, ( target-addr -- ) \ compiles a ?branch
1282 :			Defer branchmark, ( -- branch-addr ) \ reserves room for a branch
1283 :			Defer ?branchmark, ( -- branch-addr ) \ reserves room for a ?branch
1284 :			Defer ?domark, ( -- branch-addr ) \ reserves room for a ?do branch
1285 :			Defer branchto, ( -- ) \ actual program position is target of a branch (do e.g. alignment)
1286 :			Defer branchtoresolve, ( branch-addr -- ) \ resolves a forward reference from branchmark
1287 :			Defer branchfrom, ( -- ) \ ?!
1288 :			Defer branchtomark, ( -- target-addr ) \ marks a branch destination
1289 :
1290 :			Defer colon, ( tcfa -- ) \ compiles call to tcfa at current position
1291 :			Defer colonmark, ( -- addr ) \ marks a colon call
1292 :			Defer colon-resolve ( tcfa addr -- )
1293 :
1294 :			Defer addr-resolve ( target-addr addr -- )
1295 :			Defer doer-resolve ( ghost res-pnt target-addr addr -- ghost res-pnt )
1296 :
1297 :			Defer do, ( -- do-token )
1298 :			Defer ?do, ( -- ?do-token )
1299 :			Defer for, ( -- for-token )
1300 :			Defer loop, ( do-token / ?do-token -- )
1301 :			Defer +loop, ( do-token / ?do-token -- )
1302 :			Defer next, ( for-token )
1303 :
1304 :			[IFUNDEF] ca>native
1305 :			defer ca>native
1306 :			[THEN]
1307 :
1308 :	jwilke	1.52	>TARGET
1309 :			DEFER >body \ we need the system >body
1310 :			\ and the target >body
1311 :			>CROSS
1312 :			T 2 cells H VALUE xt>body
1313 :	pazsan	1.54	DEFER doprim, \ compiles start of a primitive
1314 :			DEFER docol, \ compiles start of a colon definition
1315 :	jwilke	1.52	DEFER doer,
1316 :			DEFER fini, \ compiles end of definition ;s
1317 :			DEFER doeshandler,
1318 :			DEFER dodoes,
1319 :
1320 :			DEFER ]comp \ starts compilation
1321 :			DEFER comp[ \ ends compilation
1322 :
1323 :	jwilke	1.102	: (cc) T a, H ; ' (cc) IS colon,
1324 :	pazsan	1.54
1325 :	jwilke	1.102	: (cr) >tempdp ]comp colon, comp[ tempdp> ; ' (cr) IS colon-resolve
1326 :	pazsan	1.54	: (ar) T ! H ; ' (ar) IS addr-resolve
1327 :			: (dr) ( ghost res-pnt target-addr addr )
1328 :			>tempdp drop over
1329 :			dup >magic @ <do:> =
1330 :			IF doer,
1331 :			ELSE dodoes,
1332 :			THEN
1333 :			tempdp> ; ' (dr) IS doer-resolve
1334 :
1335 :			: (cm) ( -- addr )
1336 :			T here align H
1337 :	jwilke	1.102	-1 colon, ; ' (cm) IS colonmark,
1338 :	anton	1.1
1339 :	jwilke	1.52	>TARGET
1340 :	jwilke	1.102	: compile, colon, ;
1341 :	jwilke	1.52	>CROSS
1342 :	anton	1.1
1343 :	jwilke	1.102	\ resolve structure
1344 :
1345 :			: >next ; \ link to next field
1346 :			: >tag cell+ ; \ indecates type of reference: 0: call, 1: address, 2: doer
1347 :			: >taddr cell+ cell+ ;
1348 :			: >ghost 3 cells + ;
1349 :			: >file 4 cells + ;
1350 :			: >line 5 cells + ;
1351 :
1352 :			: (refered) ( ghost addr tag -- )
1353 :			\G creates a reference to ghost at address taddr
1354 :			rot >r here r@ >link @ , r> >link !
1355 :			( taddr tag ) ,
1356 :			( taddr ) ,
1357 :			last-header-ghost @ ,
1358 :			loadfile ,
1359 :			sourceline# ,
1360 :			;
1361 :
1362 :	jwilke	1.52	: refered ( ghost tag -- )
1363 :	jwilke	1.53	\G creates a resolve structure
1364 :	pazsan	1.54	T here aligned H swap (refered)
1365 :			;
1366 :
1367 :			: killref ( addr ghost -- )
1368 :			\G kills a forward reference to ghost at position addr
1369 :			\G this is used to eleminate a :dovar refence after making a DOES>
1370 :			dup >magic @ <fwd> <> IF 2drop EXIT THEN
1371 :			swap >r >link
1372 :			BEGIN dup @ dup ( addr last this )
1373 :			WHILE dup >taddr @ r@ =
1374 :			IF @ over !
1375 :			ELSE nip THEN
1376 :			REPEAT rdrop 2drop
1377 :	jwilke	1.53	;
1378 :	anton	1.48
1379 :	jwilke	1.52	Defer resolve-warning
1380 :	anton	1.1
1381 :	jwilke	1.52	: reswarn-test ( ghost res-struct -- ghost res-struct )
1382 :	jwilke	1.78	over cr ." Resolving " .ghost dup ." in " >ghost @ .ghost ;
1383 :	anton	1.1
1384 :	jwilke	1.52	: reswarn-forward ( ghost res-struct -- ghost res-struct )
1385 :	jwilke	1.78	over warnhead .ghost dup ." is referenced in "
1386 :			>ghost @ .ghost ;
1387 :	anton	1.1
1388 :	jwilke	1.52	\ ' reswarn-test IS resolve-warning
1389 :
1390 :	anton	1.1	\ resolve 14oct92py
1391 :
1392 :	pazsan	1.54	: resolve-loop ( ghost resolve-list tcfa -- )
1393 :			>r
1394 :			BEGIN dup WHILE
1395 :			\ dup >tag @ 2 = IF reswarn-forward THEN
1396 :			resolve-warning
1397 :			r@ over >taddr @
1398 :			2 pick >tag @
1399 :			CASE 0 OF colon-resolve ENDOF
1400 :			1 OF addr-resolve ENDOF
1401 :			2 OF doer-resolve ENDOF
1402 :			ENDCASE
1403 :			@ \ next list element
1404 :			REPEAT 2drop rdrop
1405 :			;
1406 :	jwilke	1.52
1407 :			\ : resolve-loop ( ghost tcfa -- ghost tcfa )
1408 :			\ >r dup >link @
1409 :			\ BEGIN dup WHILE dup T @ H r@ rot T ! H REPEAT drop r> ;
1410 :	anton	1.1
1411 :			\ exists 9may93jaw
1412 :
1413 :	jwilke	1.52	Variable TWarnings
1414 :			TWarnings on
1415 :			Variable Exists-Warnings
1416 :			Exists-Warnings on
1417 :
1418 :	anton	1.1	: exists ( ghost tcfa -- )
1419 :			over GhostNames
1420 :			BEGIN @ dup
1421 :			WHILE 2dup cell+ @ =
1422 :			UNTIL
1423 :	jwilke	1.52	2 cells + count
1424 :			TWarnings @ Exists-Warnings @ and
1425 :			IF warnhead type ." exists"
1426 :			ELSE 2drop THEN
1427 :			drop swap >link !
1428 :	pazsan	1.24	ELSE true abort" CROSS: Ghostnames inconsistent "
1429 :	anton	1.1	THEN ;
1430 :
1431 :			: resolve ( ghost tcfa -- )
1432 :	pazsan	1.54	\G resolve referencies to ghost with tcfa
1433 :			\ is ghost resolved?, second resolve means another definition with the
1434 :			\ same name
1435 :	jwilke	1.75	over undefined? 0= IF exists EXIT THEN
1436 :	pazsan	1.54	\ get linked-list
1437 :			swap >r r@ >link @ swap \ ( list tcfa R: ghost )
1438 :			\ mark ghost as resolved
1439 :			dup r@ >link ! <res> r@ >magic !
1440 :			\ loop through forward referencies
1441 :			r> -rot
1442 :			comp-state @ >r Resolving comp-state !
1443 :			resolve-loop
1444 :			r> comp-state !
1445 :
1446 :			['] noop IS resolve-warning
1447 :	jwilke	1.52	;
1448 :	anton	1.1
1449 :			\ gexecute ghost, 01nov92py
1450 :
1451 :	jwilke	1.102	: is-forward ( ghost -- )
1452 :			colonmark, 0 (refered) ; \ compile space for call
1453 :
1454 :			: is-resolved ( ghost -- )
1455 :			>link @ colon, ; \ compile-call
1456 :
1457 :	jwilke	1.52	: gexecute ( ghost -- )
1458 :	jwilke	1.102	dup @ <fwd> = IF is-forward ELSE is-resolved THEN ;
1459 :	jwilke	1.52
1460 :			: addr, ( ghost -- )
1461 :	jwilke	1.102	dup @ <fwd> = IF 1 refered 0 T a, H ELSE >link @ T a, H THEN ;
1462 :	jwilke	1.52
1463 :			\ !! : ghost, ghost gexecute ;
1464 :	anton	1.1
1465 :			\ .unresolved 11may93jaw
1466 :
1467 :			variable ResolveFlag
1468 :
1469 :			\ ?touched 11may93jaw
1470 :
1471 :	jwilke	1.52	: ?touched ( ghost -- flag ) dup forward? swap >link @
1472 :	anton	1.1	0 <> and ;
1473 :
1474 :	jwilke	1.53	: .forwarddefs ( ghost -- )
1475 :			." appeared in:"
1476 :			>link
1477 :			BEGIN @ dup
1478 :			WHILE cr 5 spaces
1479 :	jwilke	1.78	dup >ghost @ .ghost
1480 :	jwilke	1.53	." file " dup >file @ ?dup IF count type ELSE ." CON" THEN
1481 :			." line " dup >line @ .dec
1482 :			REPEAT
1483 :			drop ;
1484 :
1485 :	anton	1.1	: ?resolved ( ghostname -- )
1486 :			dup cell+ @ ?touched
1487 :	jwilke	1.53	IF dup
1488 :			cell+ cell+ count cr type ResolveFlag on
1489 :			cell+ @ .forwarddefs
1490 :			ELSE drop
1491 :			THEN ;
1492 :	anton	1.1
1493 :			: .unresolved ( -- )
1494 :			ResolveFlag off cr ." Unresolved: "
1495 :			Ghostnames
1496 :			BEGIN @ dup
1497 :			WHILE dup ?resolved
1498 :	anton	1.10	REPEAT drop ResolveFlag @
1499 :			IF
1500 :	anton	1.48	-1 abort" Unresolved words!"
1501 :	anton	1.10	ELSE
1502 :			." Nothing!"
1503 :			THEN
1504 :			cr ;
1505 :	anton	1.1
1506 :	jwilke	1.52	: .stats
1507 :			base @ >r decimal
1508 :			cr ." named Headers: " headers-named @ .
1509 :			r> base ! ;
1510 :
1511 :	jwilke	1.79	>MINIMAL
1512 :
1513 :			: .unresolved .unresolved ;
1514 :
1515 :	anton	1.1	>CROSS
1516 :			\ Header states 12dec92py
1517 :
1518 :	jwilke	1.102	\ : flag! ( 8b -- ) tlast @ dup >r T c@ xor r> c! H ;
1519 :	pazsan	1.90	bigendian [IF] 0 [ELSE] tcell 1- [THEN] Constant flag+
1520 :			: flag! ( w -- ) tlast @ flag+ + dup >r T c@ xor r> c! H ;
1521 :	anton	1.1
1522 :			VARIABLE ^imm
1523 :
1524 :			>TARGET
1525 :	jwilke	1.102	: immediate 40 flag!
1526 :	pazsan	1.18	^imm @ @ dup <imm> = IF drop EXIT THEN
1527 :	anton	1.1	<res> <> ABORT" CROSS: Cannot immediate a unresolved word"
1528 :			<imm> ^imm @ ! ;
1529 :	jwilke	1.102	: restrict 20 flag! ;
1530 :	jwilke	1.52
1531 :	pazsan	1.54	: isdoer
1532 :			\G define a forth word as doer, this makes obviously only sence on
1533 :			\G forth processors such as the PSC1000
1534 :			<do:> last-header-ghost @ >magic ! ;
1535 :	anton	1.1	>CROSS
1536 :
1537 :			\ Target Header Creation 01nov92py
1538 :
1539 :	jwilke	1.52	>TARGET
1540 :	anton	1.1	: string, ( addr count -- )
1541 :	jwilke	1.102	dup T c, H bounds ?DO I c@ T c, H LOOP ;
1542 :
1543 :	anton	1.89	: lstring, ( addr count -- )
1544 :	jwilke	1.102	dup T , H bounds ?DO I c@ T c, H LOOP ;
1545 :
1546 :	anton	1.89	: name, ( "name" -- ) bl word count T lstring, cfalign H ;
1547 :	anton	1.1	: view, ( -- ) ( dummy ) ;
1548 :	jwilke	1.52	>CROSS
1549 :	anton	1.1
1550 :	pazsan	1.25	\ Target Document Creation (goes to crossdoc.fd) 05jul95py
1551 :
1552 :	pazsan	1.55	s" ./doc/crossdoc.fd" r/w create-file throw value doc-file-id
1553 :	pazsan	1.25	\ contains the file-id of the documentation file
1554 :
1555 :	pazsan	1.40	: T-\G ( -- )
1556 :	pazsan	1.25	source >in @ /string doc-file-id write-line throw
1557 :	pazsan	1.40	postpone \ ;
1558 :	pazsan	1.25
1559 :	pazsan	1.39	Variable to-doc to-doc on
1560 :	pazsan	1.25
1561 :			: cross-doc-entry ( -- )
1562 :			to-doc @ tlast @ 0<> and \ not an anonymous (i.e. noname) header
1563 :			IF
1564 :			s" " doc-file-id write-line throw
1565 :			s" make-doc " doc-file-id write-file throw
1566 :	jwilke	1.102
1567 :			tlast @ >image count 1F and doc-file-id write-file throw
1568 :	pazsan	1.25	>in @
1569 :			[char] ( parse 2drop
1570 :			[char] ) parse doc-file-id write-file throw
1571 :			s" )" doc-file-id write-file throw
1572 :			[char] \ parse 2drop
1573 :	pazsan	1.40	T-\G
1574 :	pazsan	1.25	>in !
1575 :	pazsan	1.39	THEN ;
1576 :	pazsan	1.25
1577 :	pazsan	1.28	\ Target TAGS creation
1578 :
1579 :	pazsan	1.39	s" kernel.TAGS" r/w create-file throw value tag-file-id
1580 :	pazsan	1.28	\ contains the file-id of the tags file
1581 :
1582 :			Create tag-beg 2 c, 7F c, bl c,
1583 :			Create tag-end 2 c, bl c, 01 c,
1584 :			Create tag-bof 1 c, 0C c,
1585 :
1586 :			2variable last-loadfilename 0 0 last-loadfilename 2!
1587 :
1588 :			: put-load-file-name ( -- )
1589 :	jwilke	1.77	sourcefilename last-loadfilename 2@ d<>
1590 :	pazsan	1.28	IF
1591 :			tag-bof count tag-file-id write-line throw
1592 :	anton	1.31	sourcefilename 2dup
1593 :	pazsan	1.28	tag-file-id write-file throw
1594 :			last-loadfilename 2!
1595 :			s" ,0" tag-file-id write-line throw
1596 :			THEN ;
1597 :
1598 :			: cross-tag-entry ( -- )
1599 :			tlast @ 0<> \ not an anonymous (i.e. noname) header
1600 :			IF
1601 :			put-load-file-name
1602 :			source >in @ min tag-file-id write-file throw
1603 :			tag-beg count tag-file-id write-file throw
1604 :	jwilke	1.77	tlast @ >image count 1F and tag-file-id write-file throw
1605 :	pazsan	1.28	tag-end count tag-file-id write-file throw
1606 :	anton	1.31	base @ decimal sourceline# 0 <# #s #> tag-file-id write-file throw
1607 :	pazsan	1.28	\ >in @ 0 <# #s [char] , hold #> tag-file-id write-line throw
1608 :			s" ,0" tag-file-id write-line throw
1609 :			base !
1610 :			THEN ;
1611 :
1612 :	pazsan	1.43	\ Check for words
1613 :
1614 :			Defer skip? ' false IS skip?
1615 :
1616 :	jwilke	1.75	: skipdef ( <name> -- )
1617 :	jwilke	1.79	\G skip definition of an undefined word in undef-words and
1618 :			\G all-words mode
1619 :	jwilke	1.75	ghost dup forward?
1620 :			IF >magic <skip> swap !
1621 :			ELSE drop THEN ;
1622 :
1623 :	jwilke	1.77	: tdefined? ( -- flag ) \ name
1624 :	jwilke	1.75	ghost undefined? 0= ;
1625 :
1626 :			: defined2? ( -- flag ) \ name
1627 :			\G return true for anything else than forward, even for <skip>
1628 :			\G that's what we want
1629 :	jwilke	1.52	ghost forward? 0= ;
1630 :	pazsan	1.43
1631 :	jwilke	1.79	: forced? ( -- flag ) \ name
1632 :			\G return ture if it is a foreced skip with defskip
1633 :			ghost >magic @ <skip> = ;
1634 :
1635 :	pazsan	1.43	: needed? ( -- flag ) \ name
1636 :	anton	1.48	\G returns a false flag when
1637 :			\G a word is not defined
1638 :			\G a forward reference exists
1639 :			\G so the definition is not skipped!
1640 :			bl word gfind
1641 :	jwilke	1.75	IF dup undefined?
1642 :	anton	1.48	nip
1643 :			0=
1644 :			ELSE drop true THEN ;
1645 :	pazsan	1.43
1646 :	pazsan	1.44	: doer? ( -- flag ) \ name
1647 :			ghost >magic @ <do:> = ;
1648 :
1649 :	pazsan	1.43	: skip-defs ( -- )
1650 :			BEGIN refill WHILE source -trailing nip 0= UNTIL THEN ;
1651 :
1652 :	pazsan	1.28	\ Target header creation
1653 :
1654 :	pazsan	1.54	Variable NoHeaderFlag
1655 :			NoHeaderFlag off
1656 :	anton	1.1
1657 :	pazsan	1.54	: 0.r ( n1 n2 -- )
1658 :			base @ >r hex
1659 :			0 swap <# 0 ?DO # LOOP #> type
1660 :			r> base ! ;
1661 :	jwilke	1.84
1662 :			: .sym ( adr len -- )
1663 :			\G escapes / and \ to produce sed output
1664 :	jwilke	1.52	bounds
1665 :			DO I c@ dup
1666 :	jwilke	1.77	CASE [char] / OF drop ." \/" ENDOF
1667 :			[char] \ OF drop ." \\" ENDOF
1668 :	jwilke	1.52	dup OF emit ENDOF
1669 :			ENDCASE
1670 :	pazsan	1.54	LOOP ;
1671 :	jwilke	1.52
1672 :	pazsan	1.43	: (Theader ( "name" -- ghost )
1673 :	pazsan	1.54	\ >in @ bl word count type 2 spaces >in !
1674 :			\ wordheaders will always be compiled to rom
1675 :			switchrom
1676 :			\ build header in target
1677 :			NoHeaderFlag @
1678 :			IF NoHeaderFlag off
1679 :			ELSE
1680 :			T align H view,
1681 :	jwilke	1.78	tlast @ dup 0> IF tcell - THEN T A, H there tlast !
1682 :	pazsan	1.54	1 headers-named +! \ Statistic
1683 :			>in @ T name, H >in !
1684 :			THEN
1685 :			T cfalign here H tlastcfa !
1686 :	jwilke	1.84	\ Old Symbol table sed-script
1687 :	pazsan	1.54	\ >in @ cr ." sym:s/CFA=" there 4 0.r ." /" bl word count .sym ." /g" cr >in !
1688 :	jwilke	1.78	ghost
1689 :	jwilke	1.84	\ output symbol table to extra file
1690 :			[ [IFDEF] fd-symbol-table ]
1691 :			base @ hex there s>d <# 8 0 DO # LOOP #> fd-symbol-table write-file throw base !
1692 :			s" :" fd-symbol-table write-file throw
1693 :			dup >ghostname fd-symbol-table write-line throw
1694 :			[ [THEN] ]
1695 :	pazsan	1.54	dup Last-Header-Ghost !
1696 :			dup >magic ^imm ! \ a pointer for immediate
1697 :			Already @
1698 :			IF dup >end tdoes !
1699 :			ELSE 0 tdoes !
1700 :			THEN
1701 :	jwilke	1.102	80 flag!
1702 :	pazsan	1.54	cross-doc-entry cross-tag-entry ;
1703 :	anton	1.1
1704 :			VARIABLE ;Resolve 1 cells allot
1705 :	jwilke	1.52	\ this is the resolver information from ":"
1706 :			\ resolving is done by ";"
1707 :	anton	1.1
1708 :	pazsan	1.11	: Theader ( "name" -- ghost )
1709 :			(THeader dup there resolve 0 ;Resolve ! ;
1710 :	anton	1.1
1711 :			>TARGET
1712 :			: Alias ( cfa -- ) \ name
1713 :	pazsan	1.43	>in @ skip? IF 2drop EXIT THEN >in !
1714 :	jwilke	1.53	dup 0< s" prims" T $has? H 0= and
1715 :	pazsan	1.43	IF
1716 :	jwilke	1.53	.sourcepos ." needs prim: " >in @ bl word count type >in ! cr
1717 :	pazsan	1.43	THEN
1718 :	jwilke	1.102	(THeader over resolve T A, H 80 flag! ;
1719 :	pazsan	1.42	: Alias: ( cfa -- ) \ name
1720 :	pazsan	1.43	>in @ skip? IF 2drop EXIT THEN >in !
1721 :	jwilke	1.53	dup 0< s" prims" T $has? H 0= and
1722 :	pazsan	1.43	IF
1723 :	jwilke	1.53	.sourcepos ." needs doer: " >in @ bl word count type >in ! cr
1724 :	pazsan	1.43	THEN
1725 :			ghost tuck swap resolve <do:> swap >magic ! ;
1726 :	pazsan	1.64
1727 :			Variable prim#
1728 :			: first-primitive ( n -- ) prim# ! ;
1729 :			: Primitive ( -- ) \ name
1730 :			prim# @ T Alias H -1 prim# +! ;
1731 :	anton	1.1	>CROSS
1732 :
1733 :			\ Conditionals and Comments 11may93jaw
1734 :
1735 :			: ;Cond
1736 :			postpone ;
1737 :			swap ! ; immediate
1738 :
1739 :			: Cond: ( -- ) \ name {code } ;
1740 :			atonce on
1741 :			ghost
1742 :			>exec
1743 :			:NONAME ;
1744 :
1745 :			: restrict? ( -- )
1746 :			\ aborts on interprete state - ae
1747 :			state @ 0= ABORT" CROSS: Restricted" ;
1748 :
1749 :			: Comment ( -- )
1750 :			>in @ atonce on ghost swap >in ! ' swap >exec ! ;
1751 :
1752 :			Comment ( Comment \
1753 :
1754 :			\ compile 10may93jaw
1755 :
1756 :			: compile ( -- ) \ name
1757 :			restrict?
1758 :	pazsan	1.13	bl word gfind dup 0= ABORT" CROSS: Can't compile "
1759 :	anton	1.1	0> ( immediate? )
1760 :			IF >exec @ compile,
1761 :			ELSE postpone literal postpone gexecute THEN ;
1762 :			immediate
1763 :
1764 :	jwilke	1.52	: [G']
1765 :			\G ticks a ghost and returns its address
1766 :			bl word gfind 0= ABORT" CROSS: Ghost don't exists"
1767 :			state @
1768 :			IF postpone literal
1769 :			THEN ; immediate
1770 :
1771 :			: ghost>cfa
1772 :	jwilke	1.75	dup undefined? ABORT" CROSS: forward " >link @ ;
1773 :	jwilke	1.52
1774 :			>TARGET
1775 :
1776 :			: ' ( -- cfa )
1777 :			\ returns the target-cfa of a ghost
1778 :			bl word gfind 0= ABORT" CROSS: Ghost don't exists"
1779 :			ghost>cfa ;
1780 :
1781 :			Cond: ['] T ' H alit, ;Cond
1782 :
1783 :			>CROSS
1784 :
1785 :			: [T']
1786 :			\ returns the target-cfa of a ghost, or compiles it as literal
1787 :			postpone [G'] state @ IF postpone ghost>cfa ELSE ghost>cfa THEN ; immediate
1788 :	pazsan	1.42
1789 :	jwilke	1.52	\ \ threading modell 13dec92py
1790 :			\ modularized 14jun97jaw
1791 :
1792 :			: fillcfa ( usedcells -- )
1793 :	jwilke	1.78	T cells H xt>body swap - 0 ?DO 0 X c, tchar +LOOP ;
1794 :	jwilke	1.52
1795 :			: (>body) ( cfa -- pfa ) xt>body + ; ' (>body) T IS >body H
1796 :
1797 :	jwilke	1.102	: (doer,) ( ghost -- ) ]comp gexecute comp[ 1 fillcfa ; ' (doer,) IS doer,
1798 :	jwilke	1.52
1799 :			: (docol,) ( -- ) [G'] :docol doer, ; ' (docol,) IS docol,
1800 :
1801 :			: (doprim,) ( -- )
1802 :			there xt>body + ca>native T a, H 1 fillcfa ; ' (doprim,) IS doprim,
1803 :
1804 :			: (doeshandler,) ( -- )
1805 :			T cfalign H compile :doesjump T 0 , H ; ' (doeshandler,) IS doeshandler,
1806 :
1807 :			: (dodoes,) ( does-action-ghost -- )
1808 :			]comp [G'] :dodoes gexecute comp[
1809 :			addr,
1810 :			T here H tcell - reloff 2 fillcfa ; ' (dodoes,) IS dodoes,
1811 :
1812 :			: (lit,) ( n -- ) compile lit T , H ; ' (lit,) IS lit,
1813 :
1814 :	jwilke	1.67	\ if we dont produce relocatable code alit, defaults to lit, jaw
1815 :	jwilke	1.84	\ this is just for convenience, so we don't have to define alit,
1816 :			\ seperately for embedded systems....
1817 :			T has? relocate H
1818 :	jwilke	1.67	[IF]
1819 :	pazsan	1.66	: (alit,) ( n -- ) compile lit T a, H ; ' (alit,) IS alit,
1820 :	jwilke	1.67	[ELSE]
1821 :			: (alit,) ( n -- ) lit, ; ' (alit,) IS alit,
1822 :			[THEN]
1823 :	jwilke	1.52
1824 :			: (fini,) compile ;s ; ' (fini,) IS fini,
1825 :	pazsan	1.42
1826 :	pazsan	1.43	[IFUNDEF] (code)
1827 :			Defer (code)
1828 :			Defer (end-code)
1829 :			[THEN]
1830 :
1831 :	anton	1.1	>TARGET
1832 :	pazsan	1.43	: Code
1833 :	jwilke	1.52	defempty?
1834 :	anton	1.48	(THeader there resolve
1835 :	jwilke	1.53	[ T e? prims H 0= [IF] T e? ITC H [ELSE] true [THEN] ] [IF]
1836 :	jwilke	1.52	doprim,
1837 :	anton	1.48	[THEN]
1838 :			depth (code) ;
1839 :	pazsan	1.43
1840 :			: Code:
1841 :	jwilke	1.52	defempty?
1842 :	anton	1.48	ghost dup there ca>native resolve <do:> swap >magic !
1843 :	pazsan	1.43	depth (code) ;
1844 :
1845 :			: end-code
1846 :	jwilke	1.52	(end-code)
1847 :	pazsan	1.43	depth ?dup IF 1- <> ABORT" CROSS: Stack changed"
1848 :			ELSE true ABORT" CROSS: Stack empty" THEN
1849 :	jwilke	1.52	;
1850 :	anton	1.14
1851 :	anton	1.1	>CROSS
1852 :	jwilke	1.52
1853 :	anton	1.1	\ tLiteral 12dec92py
1854 :
1855 :			>TARGET
1856 :	pazsan	1.40	Cond: \G T-\G ;Cond
1857 :
1858 :	anton	1.1	Cond: Literal ( n -- ) restrict? lit, ;Cond
1859 :			Cond: ALiteral ( n -- ) restrict? alit, ;Cond
1860 :
1861 :			: Char ( "<char>" -- ) bl word char+ c@ ;
1862 :			Cond: [Char] ( "<char>" -- ) restrict? Char lit, ;Cond
1863 :
1864 :	pazsan	1.43	\ some special literals 27jan97jaw
1865 :
1866 :	jwilke	1.52	\ !! Known Bug: Special Literals and plug-ins work only correct
1867 :	jwilke	1.102	\ on 16 and 32 Bit Targets and 32 Bit Hosts!
1868 :	jwilke	1.52
1869 :	pazsan	1.43	Cond: MAXU
1870 :	jwilke	1.52	restrict?
1871 :	jwilke	1.102	tcell 1 cells u>
1872 :			IF compile lit tcell 0 ?DO FF T c, H LOOP
1873 :			ELSE ffffffff lit, THEN
1874 :	jwilke	1.52	;Cond
1875 :	pazsan	1.43
1876 :			Cond: MINI
1877 :	jwilke	1.52	restrict?
1878 :	jwilke	1.102	tcell 1 cells u>
1879 :			IF compile lit bigendian
1880 :			IF 80 T c, H tcell 1 ?DO 0 T c, H LOOP
1881 :			ELSE tcell 1 ?DO 0 T c, H LOOP 80 T c, H
1882 :			THEN
1883 :			ELSE tcell 2 = IF 8000 ELSE 80000000 THEN lit, THEN
1884 :	jwilke	1.52	;Cond
1885 :	pazsan	1.43
1886 :			Cond: MAXI
1887 :	jwilke	1.52	restrict?
1888 :	jwilke	1.102	tcell 1 cells u>
1889 :			IF compile lit bigendian
1890 :			IF 7F T c, H tcell 1 ?DO FF T c, H LOOP
1891 :			ELSE tcell 1 ?DO FF T c, H LOOP 7F T c, H
1892 :			THEN
1893 :			ELSE tcell 2 = IF 7fff ELSE 7fffffff THEN lit, THEN
1894 :	pazsan	1.43	;Cond
1895 :
1896 :	anton	1.1	>CROSS
1897 :			\ Target compiling loop 12dec92py
1898 :			\ ">tib trick thrown out 10may93jaw
1899 :			\ number? defined at the top 11may93jaw
1900 :	jwilke	1.77	\ replaced >in by save-input
1901 :
1902 :			: discard 0 ?DO drop LOOP ;
1903 :	anton	1.1
1904 :			\ compiled word might leave items on stack!
1905 :	jwilke	1.77	: tcom ( x1 .. xn n name -- )
1906 :			\ dup count type space
1907 :			gfind ?dup
1908 :			IF >r >r discard r> r>
1909 :			0> IF >exec @ execute
1910 :			ELSE gexecute THEN
1911 :			EXIT
1912 :			THEN
1913 :			number? dup
1914 :			IF 0> IF swap lit, THEN lit, discard
1915 :			ELSE 2drop restore-input throw ghost gexecute THEN ;
1916 :	anton	1.1
1917 :			>TARGET
1918 :			\ : ; DOES> 13dec92py
1919 :			\ ] 9may93py/jaw
1920 :
1921 :			: ] state on
1922 :	pazsan	1.54	Compiling comp-state !
1923 :	anton	1.1	BEGIN
1924 :	jwilke	1.77	BEGIN save-input bl word
1925 :			dup c@ 0= WHILE drop discard refill 0=
1926 :	anton	1.1	ABORT" CROSS: End of file while target compiling"
1927 :			REPEAT
1928 :			tcom
1929 :			state @
1930 :			0=
1931 :			UNTIL ;
1932 :
1933 :			\ by the way: defining a second interpreter (a compiler-)loop
1934 :			\ is not allowed if a system should be ans conform
1935 :
1936 :			: : ( -- colon-sys ) \ Name
1937 :	jwilke	1.52	defempty?
1938 :			constflag off \ don't let this flag work over colon defs
1939 :			\ just to go sure nothing unwanted happens
1940 :	pazsan	1.43	>in @ skip? IF drop skip-defs EXIT THEN >in !
1941 :	anton	1.1	(THeader ;Resolve ! there ;Resolve cell+ !
1942 :	jwilke	1.52	docol, ]comp depth T ] H ;
1943 :	anton	1.1
1944 :	pazsan	1.37	: :noname ( -- colon-sys )
1945 :	jwilke	1.52	T cfalign H there docol, 0 ;Resolve ! depth T ] H ;
1946 :	pazsan	1.37
1947 :	pazsan	1.2	Cond: EXIT ( -- ) restrict? compile ;S ;Cond
1948 :	anton	1.6
1949 :			Cond: ?EXIT ( -- ) 1 abort" CROSS: using ?exit" ;Cond
1950 :	pazsan	1.2
1951 :	jwilke	1.52	>CROSS
1952 :			: LastXT ;Resolve @ 0= abort" CROSS: no definition for LastXT"
1953 :			;Resolve cell+ @ ;
1954 :
1955 :			>TARGET
1956 :
1957 :			Cond: recurse ( -- ) Last-Ghost @ gexecute ;Cond
1958 :
1959 :	anton	1.1	Cond: ; ( -- ) restrict?
1960 :			depth ?dup IF 1- <> ABORT" CROSS: Stack changed"
1961 :			ELSE true ABORT" CROSS: Stack empty" THEN
1962 :	jwilke	1.52	fini,
1963 :			comp[
1964 :			state off
1965 :	anton	1.1	;Resolve @
1966 :	jwilke	1.102	IF ;Resolve @ ;Resolve cell+ @ resolve THEN
1967 :	pazsan	1.54	Interpreting comp-state !
1968 :	anton	1.1	;Cond
1969 :	pazsan	1.54	Cond: [ restrict? state off Interpreting comp-state ! ;Cond
1970 :	anton	1.1
1971 :			>CROSS
1972 :	pazsan	1.54
1973 :			Create GhostDummy ghostheader
1974 :			<res> GhostDummy >magic !
1975 :
1976 :	jwilke	1.52	: !does ( does-action -- )
1977 :			\ !! zusammenziehen und dodoes, machen!
1978 :	pazsan	1.54	tlastcfa @ [G'] :dovar killref
1979 :			\ tlastcfa @ dup there >r tdp ! compile :dodoes r> tdp ! T cell+ ! H ;
1980 :	jwilke	1.52	\ !! geht so nicht, da dodoes, ghost will!
1981 :	pazsan	1.54	GhostDummy >link ! GhostDummy
1982 :			tlastcfa @ >tempdp dodoes, tempdp> ;
1983 :	anton	1.1
1984 :			>TARGET
1985 :			Cond: DOES> restrict?
1986 :	jwilke	1.52	compile (does>) doeshandler,
1987 :			\ resolve words made by builders
1988 :	jwilke	1.102	tdoes @ ?dup IF @ T here H resolve THEN
1989 :	anton	1.1	;Cond
1990 :	jwilke	1.52	: DOES> switchrom doeshandler, T here H !does depth T ] H ;
1991 :	anton	1.1
1992 :			>CROSS
1993 :			\ Creation 01nov92py
1994 :
1995 :			\ Builder 11may93jaw
1996 :
1997 :	jwilke	1.102	: Builder ( Create-xt do:-xt "name" -- )
1998 :	jwilke	1.52	\ builds up a builder in current vocabulary
1999 :			\ create-xt is executed when word is interpreted
2000 :			\ do:-xt is executet when the created word from builder is executed
2001 :			\ for do:-xt an additional entry after the normal ghost-enrys is used
2002 :
2003 :	jwilke	1.102	Make-Ghost ( Create-xt do:-xt ghost )
2004 :			rot swap ( do:-xt Create-xt ghost )
2005 :	jwilke	1.78	>exec ! , ;
2006 :	jwilke	1.102	\ rot swap >exec dup @ ['] NoExec <>
2007 :			\ IF 2drop ELSE ! THEN , ;
2008 :	anton	1.1
2009 :	jwilke	1.52	: gdoes, ( ghost -- )
2010 :			\ makes the codefield for a word that is built
2011 :	jwilke	1.75	>end @ dup undefined? 0=
2012 :	jwilke	1.52	IF
2013 :	pazsan	1.42	dup >magic @ <do:> =
2014 :	pazsan	1.54	IF doer,
2015 :			ELSE dodoes,
2016 :			THEN
2017 :			EXIT
2018 :	jwilke	1.52	THEN
2019 :			\ compile :dodoes gexecute
2020 :			\ T here H tcell - reloff
2021 :	pazsan	1.54	2 refered
2022 :			0 fillcfa
2023 :			;
2024 :	anton	1.1
2025 :	jwilke	1.52	: TCreate ( <name> -- )
2026 :			executed-ghost @
2027 :			create-forward-warn
2028 :			IF ['] reswarn-forward IS resolve-warning THEN
2029 :	jwilke	1.102	Theader >r dup gdoes,
2030 :	jwilke	1.77	\ stores execution semantic in the built word
2031 :	jwilke	1.78	\ if the word already has a semantic (concerns S", IS, .", DOES>)
2032 :			\ then keep it
2033 :	jwilke	1.102	>end @ >exec @ r> >exec dup @ ['] NoExec =
2034 :			IF ! ELSE 2drop THEN ;
2035 :	jwilke	1.52
2036 :			: RTCreate ( <name> -- )
2037 :			\ creates a new word with code-field in ram
2038 :			executed-ghost @
2039 :			create-forward-warn
2040 :			IF ['] reswarn-forward IS resolve-warning THEN
2041 :			\ make Alias
2042 :	jwilke	1.102	(THeader there 0 T a, H 80 flag! ( S executed-ghost new-ghost )
2043 :	jwilke	1.52	\ store poiter to code-field
2044 :			switchram T cfalign H
2045 :			there swap T ! H
2046 :			there tlastcfa !
2047 :			dup there resolve 0 ;Resolve !
2048 :			>r dup gdoes,
2049 :	jwilke	1.78	\ stores execution semantic in the built word
2050 :			\ if the word already has a semantic (concerns S", IS, .", DOES>)
2051 :			\ then keep it
2052 :			>end @ >exec @ r> >exec dup @ ['] NoExec =
2053 :			IF ! ELSE 2drop THEN ;
2054 :	anton	1.1
2055 :			: Build: ( -- [xt] [colon-sys] )
2056 :	jwilke	1.52	:noname postpone TCreate ;
2057 :
2058 :			: BuildSmart: ( -- [xt] [colon-sys] )
2059 :			:noname
2060 :	jwilke	1.53	[ T has? rom H [IF] ]
2061 :	jwilke	1.52	postpone RTCreate
2062 :			[ [ELSE] ]
2063 :			postpone TCreate
2064 :			[ [THEN] ] ;
2065 :	anton	1.1
2066 :			: gdoes> ( ghost -- addr flag )
2067 :	jwilke	1.52	executed-ghost @
2068 :	anton	1.1	state @ IF gexecute true EXIT THEN
2069 :	jwilke	1.102	>link @ T >body H false ;
2070 :	anton	1.1
2071 :			\ DO: ;DO 11may93jaw
2072 :			\ changed to ?EXIT 10may93jaw
2073 :
2074 :	jwilke	1.102	: DO: ( -- addr [xt] [colon-sys] )
2075 :	anton	1.1	here ghostheader
2076 :	pazsan	1.11	:noname postpone gdoes> postpone ?EXIT ;
2077 :	anton	1.1
2078 :	jwilke	1.102	: by: ( -- addr [xt] [colon-sys] ) \ name
2079 :	pazsan	1.42	ghost
2080 :			:noname postpone gdoes> postpone ?EXIT ;
2081 :
2082 :	jwilke	1.102	: ;DO ( addr [xt] [colon-sys] -- addr )
2083 :	anton	1.1	postpone ; ( S addr xt )
2084 :			over >exec ! ; immediate
2085 :
2086 :	jwilke	1.102	: by ( -- addr ) \ Name
2087 :	anton	1.1	ghost >end @ ;
2088 :
2089 :			>TARGET
2090 :			\ Variables and Constants 05dec92py
2091 :
2092 :	jwilke	1.52	Build: ( n -- ) ;
2093 :			by: :docon ( ghost -- n ) T @ H ;DO
2094 :			Builder (Constant)
2095 :
2096 :			Build: ( n -- ) T , H ;
2097 :			by (Constant)
2098 :			Builder Constant
2099 :
2100 :			Build: ( n -- ) T A, H ;
2101 :			by (Constant)
2102 :			Builder AConstant
2103 :
2104 :			Build: ( d -- ) T , , H ;
2105 :			DO: ( ghost -- d ) T dup cell+ @ swap @ H ;DO
2106 :			Builder 2Constant
2107 :
2108 :			BuildSmart: ;
2109 :	pazsan	1.42	by: :dovar ( ghost -- addr ) ;DO
2110 :	anton	1.1	Builder Create
2111 :
2112 :	jwilke	1.53	T has? rom H [IF]
2113 :	pazsan	1.54	Build: ( -- ) T here 0 , H switchram T align here swap ! 0 , H ( switchrom ) ;
2114 :	jwilke	1.52	by (Constant)
2115 :			Builder Variable
2116 :			[ELSE]
2117 :	anton	1.1	Build: T 0 , H ;
2118 :			by Create
2119 :			Builder Variable
2120 :	jwilke	1.52	[THEN]
2121 :	anton	1.1
2122 :	jwilke	1.53	T has? rom H [IF]
2123 :	pazsan	1.54	Build: ( -- ) T here 0 , H switchram T align here swap ! 0 , 0 , H ( switchrom ) ;
2124 :			by (Constant)
2125 :			Builder 2Variable
2126 :			[ELSE]
2127 :			Build: T 0 , 0 , H ;
2128 :			by Create
2129 :			Builder 2Variable
2130 :			[THEN]
2131 :
2132 :			T has? rom H [IF]
2133 :			Build: ( -- ) T here 0 , H switchram T align here swap ! 0 , H ( switchrom ) ;
2134 :	jwilke	1.52	by (Constant)
2135 :			Builder AVariable
2136 :			[ELSE]
2137 :	anton	1.1	Build: T 0 A, H ;
2138 :			by Create
2139 :			Builder AVariable
2140 :	jwilke	1.52	[THEN]
2141 :	anton	1.1
2142 :	pazsan	1.3	\ User variables 04may94py
2143 :
2144 :			>CROSS
2145 :	jwilke	1.78
2146 :	pazsan	1.3	Variable tup 0 tup !
2147 :			Variable tudp 0 tudp !
2148 :	jwilke	1.78
2149 :	pazsan	1.3	: u, ( n -- udp )
2150 :			tup @ tudp @ + T ! H
2151 :	pazsan	1.19	tudp @ dup T cell+ H tudp ! ;
2152 :	jwilke	1.78
2153 :	pazsan	1.3	: au, ( n -- udp )
2154 :			tup @ tudp @ + T A! H
2155 :	pazsan	1.19	tudp @ dup T cell+ H tudp ! ;
2156 :	jwilke	1.78
2157 :	pazsan	1.3	>TARGET
2158 :
2159 :	jwilke	1.78	Build: 0 u, X , ;
2160 :			by: :douser ( ghost -- up-addr ) X @ tup @ + ;DO
2161 :	anton	1.1	Builder User
2162 :
2163 :	jwilke	1.78	Build: 0 u, X , 0 u, drop ;
2164 :	pazsan	1.3	by User
2165 :	anton	1.1	Builder 2User
2166 :
2167 :	jwilke	1.78	Build: 0 au, X , ;
2168 :	pazsan	1.3	by User
2169 :	anton	1.1	Builder AUser
2170 :
2171 :	jwilke	1.52	BuildSmart: T , H ;
2172 :	pazsan	1.44	by (Constant)
2173 :	anton	1.1	Builder Value
2174 :
2175 :	jwilke	1.52	BuildSmart: T A, H ;
2176 :	pazsan	1.44	by (Constant)
2177 :	pazsan	1.32	Builder AValue
2178 :
2179 :	jwilke	1.52	BuildSmart: ( -- ) [T'] noop T A, H ;
2180 :	pazsan	1.42	by: :dodefer ( ghost -- ) ABORT" CROSS: Don't execute" ;DO
2181 :	anton	1.1	Builder Defer
2182 :	pazsan	1.37
2183 :	jwilke	1.78	Build: ( inter comp -- ) swap T immediate A, A, H ;
2184 :	pazsan	1.37	DO: ( ghost -- ) ABORT" CROSS: Don't execute" ;DO
2185 :	anton	1.38	Builder interpret/compile:
2186 :	pazsan	1.24
2187 :			\ Sturctures 23feb95py
2188 :
2189 :			>CROSS
2190 :			: nalign ( addr1 n -- addr2 )
2191 :			\ addr2 is the aligned version of addr1 wrt the alignment size n
2192 :			1- tuck + swap invert and ;
2193 :			>TARGET
2194 :
2195 :	pazsan	1.44	Build: ;
2196 :			by: :dofield T @ H + ;DO
2197 :			Builder (Field)
2198 :
2199 :	anton	1.51	Build: ( align1 offset1 align size "name" -- align2 offset2 )
2200 :			rot dup T , H ( align1 align size offset1 )
2201 :			+ >r nalign r> ;
2202 :	pazsan	1.44	by (Field)
2203 :	pazsan	1.24	Builder Field
2204 :
2205 :	anton	1.51	: struct T 1 chars 0 H ;
2206 :	pazsan	1.24	: end-struct T 2Constant H ;
2207 :
2208 :	jwilke	1.52	: cell% ( n -- size align )
2209 :	anton	1.51	T 1 cells H dup ;
2210 :	pazsan	1.88
2211 :	jwilke	1.102
2212 :	pazsan	1.91	Build: ( m v -- m' v ) dup T , cell+ H ;
2213 :	pazsan	1.88	DO: abort" Not in cross mode" ;DO
2214 :			Builder input-method
2215 :
2216 :			Build: ( m v size -- m v' ) over T , H + ;
2217 :			DO: abort" Not in cross mode" ;DO
2218 :			Builder input-var
2219 :	pazsan	1.24
2220 :	jwilke	1.102
2221 :
2222 :	jwilke	1.52	\ structural conditionals 17dec92py
2223 :
2224 :			>CROSS
2225 :			: ?struc ( flag -- ) ABORT" CROSS: unstructured " ;
2226 :			: sys? ( sys -- sys ) dup 0= ?struc ;
2227 :			: >mark ( -- sys ) T here ( dup ." M" hex. ) 0 , H ;
2228 :
2229 :	jwilke	1.78	: branchoffset ( src dest -- ) - tchar / ; \ ?? jaw
2230 :	jwilke	1.52
2231 :	jwilke	1.78	: >resolve ( sys -- )
2232 :			X here ( dup ." >" hex. ) over branchoffset swap X ! ;
2233 :	jwilke	1.52
2234 :	jwilke	1.78	: <resolve ( sys -- )
2235 :			X here ( dup ." <" hex. ) branchoffset X , ;
2236 :	jwilke	1.52
2237 :	jwilke	1.78	:noname compile branch X here branchoffset X , ;
2238 :	pazsan	1.54	IS branch, ( target-addr -- )
2239 :	jwilke	1.78	:noname compile ?branch X here branchoffset X , ;
2240 :	pazsan	1.54	IS ?branch, ( target-addr -- )
2241 :			:noname compile branch T here 0 , H ;
2242 :			IS branchmark, ( -- branchtoken )
2243 :			:noname compile ?branch T here 0 , H ;
2244 :			IS ?branchmark, ( -- branchtoken )
2245 :			:noname T here 0 , H ;
2246 :			IS ?domark, ( -- branchtoken )
2247 :	jwilke	1.78	:noname dup X @ ?struc X here over branchoffset swap X ! ;
2248 :	pazsan	1.54	IS branchtoresolve, ( branchtoken -- )
2249 :	jwilke	1.78	:noname branchto, X here ;
2250 :	pazsan	1.54	IS branchtomark, ( -- target-addr )
2251 :	jwilke	1.52
2252 :			>TARGET
2253 :
2254 :			\ Structural Conditionals 12dec92py
2255 :
2256 :			Cond: BUT restrict? sys? swap ;Cond
2257 :			Cond: YET restrict? sys? dup ;Cond
2258 :
2259 :			>CROSS
2260 :
2261 :	jwilke	1.78	Variable tleavings 0 tleavings !
2262 :	jwilke	1.52
2263 :	pazsan	1.54	: (done) ( addr -- )
2264 :			tleavings @
2265 :			BEGIN dup
2266 :			WHILE
2267 :			>r dup r@ cell+ @ \ address of branch
2268 :			u> 0= \ lower than DO?
2269 :			WHILE
2270 :			r@ 2 cells + @ \ branch token
2271 :			branchtoresolve,
2272 :			r@ @ r> free throw
2273 :			REPEAT r> THEN
2274 :			tleavings ! drop ;
2275 :
2276 :	jwilke	1.53	>TARGET
2277 :
2278 :	pazsan	1.54	Cond: DONE ( addr -- ) restrict? (done) ;Cond
2279 :	jwilke	1.53
2280 :			>CROSS
2281 :	pazsan	1.54	: (leave) ( branchtoken -- )
2282 :	jwilke	1.53	3 cells allocate throw >r
2283 :			T here H r@ cell+ !
2284 :			r@ 2 cells + !
2285 :			tleavings @ r@ !
2286 :			r> tleavings ! ;
2287 :			>TARGET
2288 :
2289 :	pazsan	1.54	Cond: LEAVE restrict? branchmark, (leave) ;Cond
2290 :			Cond: ?LEAVE restrict? compile 0= ?branchmark, (leave) ;Cond
2291 :	jwilke	1.53
2292 :	pazsan	1.54	>CROSS
2293 :			\ !!JW ToDo : Move to general tools section
2294 :
2295 :			: to1 ( x1 x2 xn n -- addr )
2296 :			\G packs n stack elements in a allocated memory region
2297 :			dup dup 1+ cells allocate throw dup >r swap 1+
2298 :			0 DO tuck ! cell+ LOOP
2299 :			drop r> ;
2300 :			: 1to ( addr -- x1 x2 xn )
2301 :			\G unpacks the elements saved by to1
2302 :			dup @ swap over cells + swap
2303 :			0 DO dup @ swap 1 cells - LOOP
2304 :			free throw ;
2305 :
2306 :			: loop] branchto, dup <resolve tcell - (done) ;
2307 :
2308 :			: skiploop] ?dup IF branchto, branchtoresolve, THEN ;
2309 :
2310 :			>TARGET
2311 :
2312 :	jwilke	1.52	\ Structural Conditionals 12dec92py
2313 :
2314 :	jwilke	1.53	>TARGET
2315 :	jwilke	1.52	Cond: AHEAD restrict? branchmark, ;Cond
2316 :			Cond: IF restrict? ?branchmark, ;Cond
2317 :			Cond: THEN restrict? sys? branchto, branchtoresolve, ;Cond
2318 :			Cond: ELSE restrict? sys? compile AHEAD swap compile THEN ;Cond
2319 :
2320 :			Cond: BEGIN restrict? branchtomark, ;Cond
2321 :			Cond: WHILE restrict? sys? compile IF swap ;Cond
2322 :			Cond: AGAIN restrict? sys? branch, ;Cond
2323 :			Cond: UNTIL restrict? sys? ?branch, ;Cond
2324 :			Cond: REPEAT restrict? over 0= ?struc compile AGAIN compile THEN ;Cond
2325 :
2326 :			Cond: CASE restrict? 0 ;Cond
2327 :			Cond: OF restrict? 1+ >r compile over compile =
2328 :			compile IF compile drop r> ;Cond
2329 :	pazsan	1.45	Cond: ENDOF restrict? >r compile ELSE r> ;Cond
2330 :			Cond: ENDCASE restrict? compile drop 0 ?DO compile THEN LOOP ;Cond
2331 :	anton	1.1
2332 :			\ Structural Conditionals 12dec92py
2333 :
2334 :	jwilke	1.67	:noname \ ?? i think 0 is too much! jaw
2335 :	pazsan	1.54	0 compile (do)
2336 :			branchtomark, 2 to1 ;
2337 :			IS do, ( -- target-addr )
2338 :
2339 :			\ :noname
2340 :			\ compile 2dup compile = compile IF
2341 :			\ compile 2drop compile ELSE
2342 :			\ compile (do) branchtomark, 2 to1 ;
2343 :			\ IS ?do,
2344 :
2345 :			:noname
2346 :			0 compile (?do) ?domark, (leave)
2347 :			branchtomark, 2 to1 ;
2348 :			IS ?do, ( -- target-addr )
2349 :			:noname compile (for) branchtomark, ;
2350 :			IS for, ( -- target-addr )
2351 :			:noname 1to compile (loop) loop] compile unloop skiploop] ;
2352 :			IS loop, ( target-addr -- )
2353 :			:noname 1to compile (+loop) loop] compile unloop skiploop] ;
2354 :			IS +loop, ( target-addr -- )
2355 :			:noname compile (next) loop] compile unloop ;
2356 :			IS next, ( target-addr -- )
2357 :
2358 :			Cond: DO restrict? do, ;Cond
2359 :			Cond: ?DO restrict? ?do, ;Cond
2360 :			Cond: FOR restrict? for, ;Cond
2361 :
2362 :			Cond: LOOP restrict? sys? loop, ;Cond
2363 :			Cond: +LOOP restrict? sys? +loop, ;Cond
2364 :			Cond: NEXT restrict? sys? next, ;Cond
2365 :	jwilke	1.52
2366 :	anton	1.1	\ String words 23feb93py
2367 :
2368 :	jwilke	1.52	: ," [char] " parse T string, align H ;
2369 :	anton	1.1
2370 :	pazsan	1.97	Cond: ." restrict? compile (.") T ," H ;Cond
2371 :			Cond: S" restrict? compile (S") T ," H ;Cond
2372 :			Cond: ABORT" restrict? compile (ABORT") T ," H ;Cond
2373 :	anton	1.1
2374 :			Cond: IS T ' >body H compile ALiteral compile ! ;Cond
2375 :	pazsan	1.66	: IS T >address ' >body ! H ;
2376 :	pazsan	1.9	Cond: TO T ' >body H compile ALiteral compile ! ;Cond
2377 :			: TO T ' >body ! H ;
2378 :	anton	1.1
2379 :	jwilke	1.52	Cond: defers T ' >body @ compile, H ;Cond
2380 :			: on T -1 swap ! H ;
2381 :			: off T 0 swap ! H ;
2382 :
2383 :	anton	1.1	\ LINKED ERR" ENV" 2ENV" 18may93jaw
2384 :
2385 :			\ linked list primitive
2386 :	jwilke	1.79	: linked X here over X @ X A, swap X ! ;
2387 :	jwilke	1.52	: chained T linked A, H ;
2388 :	anton	1.1
2389 :			: err" s" ErrLink linked" evaluate T , H
2390 :	jwilke	1.52	[char] " parse T string, align H ;
2391 :	anton	1.1
2392 :			: env" [char] " parse s" EnvLink linked" evaluate
2393 :	jwilke	1.52	T string, align , H ;
2394 :	anton	1.1
2395 :			: 2env" [char] " parse s" EnvLink linked" evaluate
2396 :	jwilke	1.52	here >r T string, align , , H
2397 :	anton	1.1	r> dup T c@ H 80 and swap T c! H ;
2398 :
2399 :			\ compile must be last 22feb93py
2400 :
2401 :			Cond: compile ( -- ) restrict? \ name
2402 :	pazsan	1.13	bl word gfind dup 0= ABORT" CROSS: Can't compile"
2403 :	anton	1.1	0> IF gexecute
2404 :			ELSE dup >magic @ <imm> =
2405 :			IF gexecute
2406 :	pazsan	1.54	ELSE compile (compile) addr, THEN THEN ;Cond
2407 :	anton	1.1
2408 :	jwilke	1.102	Cond: postpone ( -- ) restrict? \ name
2409 :	jwilke	1.101	bl word gfind dup 0= ABORT" CROSS: Can't compile"
2410 :			0> IF gexecute
2411 :			ELSE dup >magic @ <imm> =
2412 :			IF gexecute
2413 :	jwilke	1.102	ELSE compile (compile) addr, THEN THEN ;Cond
2414 :	jwilke	1.101
2415 :	jwilke	1.102	Cond: [compile] ( -- ) restrict? \ name
2416 :	pazsan	1.13	bl word gfind dup 0= ABORT" CROSS: Can't compile"
2417 :	anton	1.1	0> IF gexecute
2418 :			ELSE dup >magic @ <imm> =
2419 :			IF gexecute
2420 :	pazsan	1.54	ELSE compile (compile) addr, THEN THEN ;Cond
2421 :
2422 :	jwilke	1.77	\ save-cross 17mar93py
2423 :
2424 :			hex
2425 :
2426 :			>CROSS
2427 :			Create magic s" Gforth2x" here over allot swap move
2428 :
2429 :			bigendian 1+ \ strangely, in magic big=0, little=1
2430 :			tcell 1 = 0 and or
2431 :			tcell 2 = 2 and or
2432 :			tcell 4 = 4 and or
2433 :			tcell 8 = 6 and or
2434 :			tchar 1 = 00 and or
2435 :			tchar 2 = 28 and or
2436 :			tchar 4 = 50 and or
2437 :			tchar 8 = 78 and or
2438 :			magic 7 + c!
2439 :
2440 :			: save-cross ( "image-name" "binary-name" -- )
2441 :			bl parse ." Saving to " 2dup type cr
2442 :			w/o bin create-file throw >r
2443 :			TNIL IF
2444 :	anton	1.80	s" #! " r@ write-file throw
2445 :			bl parse r@ write-file throw
2446 :			s" --image-file" r@ write-file throw
2447 :	jwilke	1.77	#lf r@ emit-file throw
2448 :			r@ dup file-position throw drop 8 mod 8 swap ( file-id limit index )
2449 :			?do
2450 :			bl over emit-file throw
2451 :			loop
2452 :			drop
2453 :			magic 8 r@ write-file throw \ write magic
2454 :			ELSE
2455 :			bl parse 2drop
2456 :			THEN
2457 :			image @ there
2458 :			r@ write-file throw \ write image
2459 :			TNIL IF
2460 :			bit$ @ there 1- tcell>bit rshift 1+
2461 :			r@ write-file throw \ write tags
2462 :			THEN
2463 :			r> close-file throw ;
2464 :
2465 :			: save-region ( addr len -- )
2466 :			bl parse w/o bin create-file throw >r
2467 :			swap >image swap r@ write-file throw
2468 :			r> close-file throw ;
2469 :
2470 :	pazsan	1.54	\ \ minimal definitions
2471 :
2472 :	jwilke	1.77	>MINIMAL also minimal
2473 :
2474 :	anton	1.1	\ Usefull words 13feb93py
2475 :
2476 :			: KB 400 * ;
2477 :
2478 :	pazsan	1.54	\ \ [IF] [ELSE] [THEN] ... 14sep97jaw
2479 :
2480 :			\ it is useful to define our own structures and not to rely
2481 :			\ on the words in the compiler
2482 :			\ The words in the compiler might be defined with vocabularies
2483 :			\ this doesn't work with our self-made compile-loop
2484 :
2485 :			Create parsed 20 chars allot \ store word we parsed
2486 :
2487 :			: upcase
2488 :			parsed count bounds
2489 :			?DO I c@ toupper I c! LOOP ;
2490 :
2491 :			: [ELSE]
2492 :			1 BEGIN
2493 :			BEGIN bl word count dup WHILE
2494 :	jwilke	1.77	comment? 20 umin parsed place upcase parsed count
2495 :	pazsan	1.54	2dup s" [IF]" compare 0= >r
2496 :			2dup s" [IFUNDEF]" compare 0= >r
2497 :			2dup s" [IFDEF]" compare 0= r> or r> or
2498 :			IF 2drop 1+
2499 :			ELSE 2dup s" [ELSE]" compare 0=
2500 :			IF 2drop 1- dup
2501 :			IF 1+
2502 :			THEN
2503 :			ELSE
2504 :			2dup s" [ENDIF]" compare 0= >r
2505 :			s" [THEN]" compare 0= r> or
2506 :			IF 1- THEN
2507 :			THEN
2508 :			THEN
2509 :			?dup 0= ?EXIT
2510 :			REPEAT
2511 :			2drop refill 0=
2512 :			UNTIL drop ; immediate
2513 :
2514 :			: [THEN] ( -- ) ; immediate
2515 :
2516 :			: [ENDIF] ( -- ) ; immediate
2517 :
2518 :			: [IF] ( flag -- )
2519 :			0= IF postpone [ELSE] THEN ; immediate
2520 :
2521 :			Cond: [IF] postpone [IF] ;Cond
2522 :			Cond: [THEN] postpone [THEN] ;Cond
2523 :			Cond: [ELSE] postpone [ELSE] ;Cond
2524 :
2525 :	anton	1.1	\ define new [IFDEF] and [IFUNDEF] 20may93jaw
2526 :
2527 :	jwilke	1.77	: defined? tdefined? ;
2528 :	pazsan	1.44	: needed? needed? ;
2529 :			: doer? doer? ;
2530 :	anton	1.1
2531 :	jwilke	1.52	\ we want to use IFDEF on compiler directives (e.g. E?) in the source, too
2532 :
2533 :			: directive?
2534 :	jwilke	1.77	bl word count [ ' target >wordlist ] literal search-wordlist
2535 :	jwilke	1.52	dup IF nip THEN ;
2536 :
2537 :			: [IFDEF] >in @ directive? swap >in !
2538 :	jwilke	1.77	0= IF tdefined? ELSE name 2drop true THEN
2539 :	jwilke	1.52	postpone [IF] ;
2540 :
2541 :	jwilke	1.77	: [IFUNDEF] tdefined? 0= postpone [IF] ;
2542 :	anton	1.1
2543 :	pazsan	1.54	Cond: [IFDEF] postpone [IFDEF] ;Cond
2544 :
2545 :			Cond: [IFUNDEF] postpone [IFUNDEF] ;Cond
2546 :
2547 :	anton	1.1	\ C: \- \+ Conditional Compiling 09jun93jaw
2548 :
2549 :	jwilke	1.77	: C: >in @ tdefined? 0=
2550 :			IF >in ! X :
2551 :	anton	1.1	ELSE drop
2552 :			BEGIN bl word dup c@
2553 :			IF count comment? s" ;" compare 0= ?EXIT
2554 :			ELSE refill 0= ABORT" CROSS: Out of Input while C:"
2555 :			THEN
2556 :			AGAIN
2557 :			THEN ;
2558 :
2559 :	jwilke	1.74	: d? d? ;
2560 :
2561 :			\G doesn't skip line when debug switch is on
2562 :			: \D D? 0= IF postpone \ THEN ;
2563 :	jwilke	1.52
2564 :	anton	1.48	\G interprets the line if word is not defined
2565 :	jwilke	1.77	: \- tdefined? IF postpone \ THEN ;
2566 :	anton	1.48
2567 :			\G interprets the line if word is defined
2568 :	jwilke	1.77	: \+ tdefined? 0= IF postpone \ THEN ;
2569 :	anton	1.1
2570 :	anton	1.48	Cond: \- \- ;Cond
2571 :			Cond: \+ \+ ;Cond
2572 :	jwilke	1.52	Cond: \D \D ;Cond
2573 :	anton	1.48
2574 :			: ?? bl word find IF execute ELSE drop 0 THEN ;
2575 :
2576 :			: needed:
2577 :			\G defines ghost for words that we want to be compiled
2578 :			BEGIN >in @ bl word c@ WHILE >in ! ghost drop REPEAT drop ;
2579 :
2580 :	anton	1.1	\ words that should be in minimal
2581 :	jwilke	1.52
2582 :			create s-buffer 50 chars allot
2583 :
2584 :	jwilke	1.77	bigendian Constant bigendian
2585 :	anton	1.1
2586 :	jwilke	1.52	: here there ;
2587 :	jwilke	1.67	: equ constant ;
2588 :			: mark there constant ;
2589 :	pazsan	1.54
2590 :			\ compiler directives
2591 :	jwilke	1.52	: >ram >ram ;
2592 :			: >rom >rom ;
2593 :			: >auto >auto ;
2594 :			: >tempdp >tempdp ;
2595 :			: tempdp> tempdp> ;
2596 :			: const constflag on ;
2597 :			: warnings name 3 = 0= twarnings ! drop ;
2598 :	jwilke	1.102	: redefinitions-start twarnings off ;
2599 :			: redefinitions-end twarnings on ;
2600 :			: group 0 word drop ;
2601 :
2602 :	anton	1.60	: \| ;
2603 :			\ : \| NoHeaderFlag on ; \ This is broken (damages the last word)
2604 :	jwilke	1.52
2605 :	anton	1.48	: save-cross save-cross ;
2606 :	jwilke	1.52	: save-region save-region ;
2607 :			: tdump swap >image swap dump ;
2608 :
2609 :	anton	1.48	also forth
2610 :	jwilke	1.52	[IFDEF] Label : Label defempty? Label ; [THEN]
2611 :			[IFDEF] start-macros : start-macros defempty? start-macros ; [THEN]
2612 :	jwilke	1.77	\ [IFDEF] builttag : builttag builttag ; [THEN]
2613 :	anton	1.48	previous
2614 :
2615 :	jwilke	1.52	: s" [char] " parse s-buffer place s-buffer count ; \ for environment?
2616 :	pazsan	1.43	: + + ;
2617 :	jwilke	1.52	: 1+ 1 + ;
2618 :			: 2+ 2 + ;
2619 :	pazsan	1.43	: 1- 1- ;
2620 :			: - - ;
2621 :	jwilke	1.52	: and and ;
2622 :			: or or ;
2623 :	pazsan	1.43	: 2* 2* ;
2624 :			: * * ;
2625 :			: / / ;
2626 :			: dup dup ;
2627 :			: over over ;
2628 :			: swap swap ;
2629 :			: rot rot ;
2630 :			: drop drop ;
2631 :			: = = ;
2632 :			: 0= 0= ;
2633 :			: lshift lshift ;
2634 :			: 2/ 2/ ;
2635 :	pazsan	1.19	: . . ;
2636 :	anton	1.1
2637 :	jwilke	1.79	: all-words ['] forced? IS skip? ;
2638 :	pazsan	1.43	: needed-words ['] needed? IS skip? ;
2639 :	jwilke	1.75	: undef-words ['] defined2? IS skip? ;
2640 :			: skipdef skipdef ;
2641 :	anton	1.1
2642 :	pazsan	1.40	: \ postpone \ ; immediate
2643 :	pazsan	1.47	: \G T-\G ; immediate
2644 :	pazsan	1.40	: ( postpone ( ; immediate
2645 :	anton	1.1	: include bl word count included ;
2646 :	jwilke	1.52	: require require ;
2647 :	anton	1.1	: .( [char] ) parse type ;
2648 :	jwilke	1.52	: ." [char] " parse type ;
2649 :	anton	1.1	: cr cr ;
2650 :
2651 :	jwilke	1.77	: times 0 ?DO dup X c, LOOP drop ; \ used for space table creation
2652 :
2653 :			\ only forth also cross also minimal definitions order
2654 :	anton	1.1
2655 :			\ cross-compiler words
2656 :
2657 :			: decimal decimal ;
2658 :			: hex hex ;
2659 :
2660 :	jwilke	1.77	\ : tudp X tudp ;
2661 :			\ : tup X tup ;
2662 :
2663 :			: doc-off false to-doc ! ;
2664 :			: doc-on true to-doc ! ;
2665 :	pazsan	1.39
2666 :	jwilke	1.52	[IFDEF] dbg : dbg dbg ; [THEN]
2667 :	pazsan	1.39
2668 :	anton	1.1	\ for debugging...
2669 :			: order order ;
2670 :	jwilke	1.52	: hwords words ;
2671 :			: words also ghosts words previous ;
2672 :	anton	1.1	: .s .s ;
2673 :			: bye bye ;
2674 :	pazsan	1.99
2675 :	anton	1.1	\ turnkey direction
2676 :			: H forth ; immediate
2677 :			: T minimal ; immediate
2678 :			: G ghosts ; immediate
2679 :
2680 :	jwilke	1.77	: turnkey
2681 :	jwilke	1.78	\GFORTH 0 set-order also ghosts
2682 :			\ANSI [ ' ghosts >wordlist ] Literal 1 set-order
2683 :			also target definitions
2684 :	jwilke	1.77	also Minimal also ;
2685 :	anton	1.1
2686 :			\ these ones are pefered:
2687 :
2688 :			: lock turnkey ;
2689 :	jwilke	1.74	: unlock previous forth also cross ;
2690 :	jwilke	1.52
2691 :	jwilke	1.77	\ also minimal
2692 :	jwilke	1.102	: [[ also unlock ;
2693 :			: ]] previous previous also also ;
2694 :	anton	1.1
2695 :			unlock definitions also minimal
2696 :			: lock lock ;
2697 :			lock
2698 :	jwilke	1.77
2699 :			\ load cross compiler extension defined in mach file
2700 :
2701 :			UNLOCK >CROSS
2702 :
2703 :			[IFDEF] extend-cross extend-cross [THEN]
2704 :
2705 :			LOCK

CVS Admin

gforth: gforth/cross.fs

ViewCVS and CVS Help