[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	1.136	\ 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 :	jwilke	1.67
31 :			[THEN]
32 :	anton	1.48
33 :	anton	1.128	s" compat/strcomp.fs" included
34 :
35 :	jwilke	1.77	hex
36 :
37 :			\ debugging for compiling
38 :
39 :			\ print stack at each colon definition
40 :			\ : : save-input cr bl word count type restore-input throw .s : ;
41 :
42 :			\ print stack at each created word
43 :			\ : create save-input cr bl word count type restore-input throw .s create ;
44 :
45 :
46 :			\ \ ------------- Setup Vocabularies
47 :
48 :			\ Remark: Vocabulary is not ANS, but it should work...
49 :
50 :			Vocabulary Cross
51 :			Vocabulary Target
52 :			Vocabulary Ghosts
53 :			Vocabulary Minimal
54 :			only Forth also Target also also
55 :			definitions Forth
56 :
57 :	jwilke	1.78	: T previous Ghosts also Target ; immediate
58 :	jwilke	1.77	: G Ghosts ; immediate
59 :			: H previous Forth also Cross ; immediate
60 :
61 :			forth definitions
62 :
63 :	jwilke	1.78	: T previous Ghosts also Target ; immediate
64 :	jwilke	1.77	: G Ghosts ; immediate
65 :
66 :	jwilke	1.105
67 :	jwilke	1.77	: >cross also Cross definitions previous ;
68 :			: >target also Target definitions previous ;
69 :			: >minimal also Minimal definitions previous ;
70 :
71 :			H
72 :
73 :			>CROSS
74 :
75 :	jwilke	1.123	\ Test against this definitions to find out whether we are cross-compiling
76 :			\ may be usefull for assemblers
77 :			0 Constant gforth-cross-indicator
78 :
79 :	jwilke	1.77	\ find out whether we are compiling with gforth
80 :
81 :			: defined? bl word find nip ;
82 :			defined? emit-file defined? toupper and \ drop 0
83 :			[IF]
84 :			\ use this in a gforth system
85 :			: \GFORTH ; immediate
86 :			: \ANSI postpone \ ; immediate
87 :			[ELSE]
88 :			: \GFORTH postpone \ ; immediate
89 :			: \ANSI ; immediate
90 :			[THEN]
91 :
92 :			\ANSI : [IFUNDEF] defined? 0= postpone [IF] ; immediate
93 :			\ANSI : [IFDEF] defined? postpone [IF] ; immediate
94 :			0 \ANSI drop 1
95 :			[IF]
96 :			: \G postpone \ ; immediate
97 :			: rdrop postpone r> postpone drop ; immediate
98 :			: name bl word count ;
99 :			: bounds over + swap ;
100 :			: scan >r BEGIN dup WHILE over c@ r@ <> WHILE 1 /string REPEAT THEN rdrop ;
101 :			: linked here over @ , swap ! ;
102 :			: alias create , DOES> @ EXECUTE ;
103 :			: defer ['] noop alias ;
104 :			: is state @
105 :			IF ' >body postpone literal postpone !
106 :			ELSE ' >body ! THEN ; immediate
107 :			: 0>= 0< 0= ;
108 :			: d<> rot <> -rot <> or ;
109 :			: toupper dup [char] a [char] z 1+ within IF [char] A [char] a - + THEN ;
110 :			Variable ebuf
111 :			: emit-file ( c fd -- ior ) swap ebuf c! ebuf 1 chars rot write-file ;
112 :			0a Constant #lf
113 :			0d Constant #cr
114 :
115 :			[IFUNDEF] Warnings Variable Warnings [THEN]
116 :
117 :			\ \ Number parsing 23feb93py
118 :
119 :			\ number? number 23feb93py
120 :
121 :			Variable dpl
122 :
123 :			hex
124 :			Create bases 10 , 2 , A , 100 ,
125 :			\ 16 2 10 character
126 :
127 :			\ !! protect BASE saving wrapper against exceptions
128 :			: getbase ( addr u -- addr' u' )
129 :			over c@ [char] $ - dup 4 u<
130 :			IF
131 :			cells bases + @ base ! 1 /string
132 :			ELSE
133 :			drop
134 :			THEN ;
135 :
136 :			: sign? ( addr u -- addr u flag )
137 :			over c@ [char] - = dup >r
138 :			IF
139 :			1 /string
140 :			THEN
141 :			r> ;
142 :
143 :			: s>unumber? ( addr u -- ud flag )
144 :	jwilke	1.78	over [char] ' =
145 :			IF \ a ' alone is rather unusual :-)
146 :			drop char+ c@ 0 true EXIT
147 :			THEN
148 :	jwilke	1.77	base @ >r dpl on getbase
149 :			0. 2swap
150 :			BEGIN ( d addr len )
151 :			dup >r >number dup
152 :			WHILE \ there are characters left
153 :			dup r> -
154 :			WHILE \ the last >number parsed something
155 :			dup 1- dpl ! over c@ [char] . =
156 :			WHILE \ the current char is '.'
157 :			1 /string
158 :			REPEAT THEN \ there are unparseable characters left
159 :			2drop false
160 :			ELSE
161 :			rdrop 2drop true
162 :			THEN
163 :			r> base ! ;
164 :
165 :			\ ouch, this is complicated; there must be a simpler way - anton
166 :			: s>number? ( addr len -- d f )
167 :			\ converts string addr len into d, flag indicates success
168 :			sign? >r
169 :			s>unumber?
170 :			0= IF
171 :			rdrop false
172 :			ELSE \ no characters left, all ok
173 :			r>
174 :			IF
175 :			dnegate
176 :			THEN
177 :			true
178 :			THEN ;
179 :
180 :			: s>number ( addr len -- d )
181 :			\ don't use this, there is no way to tell success
182 :			s>number? drop ;
183 :
184 :			: snumber? ( c-addr u -- 0 / n -1 / d 0> )
185 :			s>number? 0=
186 :			IF
187 :			2drop false EXIT
188 :			THEN
189 :			dpl @ dup 0< IF
190 :			nip
191 :			ELSE
192 :			1+
193 :			THEN ;
194 :
195 :			: number? ( string -- string 0 / n -1 / d 0> )
196 :			dup >r count snumber? dup if
197 :			rdrop
198 :			else
199 :			r> swap
200 :			then ;
201 :
202 :			: number ( string -- d )
203 :			number? ?dup 0= abort" ?" 0<
204 :			IF
205 :			s>d
206 :			THEN ;
207 :
208 :			[THEN]
209 :	anton	1.48
210 :	jwilke	1.115	\ this provides assert( and struct stuff
211 :			\GFORTH [IFUNDEF] assert1(
212 :			\GFORTH also forth definitions require assert.fs previous
213 :			\GFORTH [THEN]
214 :
215 :			>CROSS
216 :
217 :	jwilke	1.52	hex \ the defualt base for the cross-compiler is hex !!
218 :	jwilke	1.78	\ Warnings off
219 :	jwilke	1.52
220 :			\ words that are generaly useful
221 :
222 :	pazsan	1.59	: KB 400 * ;
223 :	jwilke	1.52	: >wordlist ( vocabulary-xt -- wordlist-struct )
224 :			also execute get-order swap >r 1- set-order r> ;
225 :
226 :			: umax 2dup u< IF swap THEN drop ;
227 :			: umin 2dup u> IF swap THEN drop ;
228 :	anton	1.1
229 :	pazsan	1.23	: string, ( c-addr u -- )
230 :			\ puts down string as cstring
231 :			dup c, here swap chars dup allot move ;
232 :	pazsan	1.5
233 :	jwilke	1.77	: ," [char] " parse string, ;
234 :
235 :	jwilke	1.52	: SetValue ( n -- <name> )
236 :	pazsan	1.54	\G Same behaviour as "Value" if the <name> is not defined
237 :			\G Same behaviour as "to" if <name> is defined
238 :	jwilke	1.52	\G SetValue searches in the current vocabulary
239 :	jwilke	1.68	save-input bl word >r restore-input throw r> count
240 :			get-current search-wordlist
241 :			IF drop >r
242 :			\ we have to set current to be topmost context wordlist
243 :			get-order get-order get-current swap 1+ set-order
244 :			r> ['] to execute
245 :	jwilke	1.74	set-order
246 :	jwilke	1.68	ELSE Value THEN ;
247 :	jwilke	1.52
248 :			: DefaultValue ( n -- <name> )
249 :	pazsan	1.54	\G Same behaviour as "Value" if the <name> is not defined
250 :			\G DefaultValue searches in the current vocabulary
251 :	jwilke	1.52	save-input bl word >r restore-input throw r> count
252 :			get-current search-wordlist
253 :	pazsan	1.56	IF bl word drop 2drop ELSE Value THEN ;
254 :	anton	1.1
255 :			hex
256 :
257 :	jwilke	1.120	\ FIXME delete`
258 :	jwilke	1.52	\ 1 Constant Cross-Flag \ to check whether assembler compiler plug-ins are
259 :			\ for cross-compiling
260 :			\ No! we use "[IFUNDEF]" there to find out whether we are target compiling!!!
261 :
262 :	jwilke	1.120	\ FIXME move down
263 :	jwilke	1.52	: comment? ( c-addr u -- c-addr u )
264 :	anton	1.128	2dup s" (" str=
265 :	jwilke	1.52	IF postpone (
266 :	anton	1.128	ELSE 2dup s" \" str= IF postpone \ THEN
267 :	jwilke	1.52	THEN ;
268 :
269 :	jwilke	1.120	: X ( -- <name> )
270 :			\G The next word in the input is a target word.
271 :			\G Equivalent to T <name> but without permanent
272 :			\G switch to target dictionary. Used as prefix e.g. for @, !, here etc.
273 :			bl word count [ ' target >wordlist ] Literal search-wordlist
274 :			IF state @ IF compile, ELSE execute THEN
275 :			ELSE -1 ABORT" Cross: access method not supported!"
276 :			THEN ; immediate
277 :	jwilke	1.105
278 :	jwilke	1.52	\ Begin CROSS COMPILER:
279 :
280 :	jwilke	1.74	\ debugging
281 :	jwilke	1.52
282 :	jwilke	1.74	0 [IF]
283 :
284 :			This implements debugflags for the cross compiler and the compiled
285 :			images. It works identical to the has-flags in the environment.
286 :			The debugflags are defined in a vocabluary. If the word exists and
287 :			its value is true, the flag is switched on.
288 :
289 :			[THEN]
290 :
291 :	jwilke	1.77	>CROSS
292 :
293 :	jwilke	1.74	Vocabulary debugflags \ debug flags for cross
294 :			also debugflags get-order over
295 :			Constant debugflags-wl
296 :			set-order previous
297 :
298 :			: DebugFlag
299 :			get-current >r debugflags-wl set-current
300 :			SetValue
301 :			r> set-current ;
302 :
303 :			: Debug? ( adr u -- flag )
304 :			\G return true if debug flag is defined or switched on
305 :			debugflags-wl search-wordlist
306 :			IF EXECUTE
307 :			ELSE false THEN ;
308 :
309 :			: D? ( <name> -- flag )
310 :			\G return true if debug flag is defined or switched on
311 :			\G while compiling we do not return the current value but
312 :			bl word count debug? ;
313 :
314 :			: [d?]
315 :			\G compile the value-xt so the debug flag can be switched
316 :			\G the flag must exist!
317 :			bl word count debugflags-wl search-wordlist
318 :			IF compile,
319 :			ELSE -1 ABORT" unknown debug flag"
320 :			\ POSTPONE false
321 :			THEN ; immediate
322 :	pazsan	1.54
323 :	jwilke	1.123	: symentry ( adr len taddr -- )
324 :			\G Produce a symbol table (an optional symbol address
325 :			\G map) if wanted
326 :			[ [IFDEF] fd-symbol-table ]
327 :			base @ swap hex s>d <# 8 0 DO # LOOP #> fd-symbol-table write-file throw base !
328 :			s" :" fd-symbol-table write-file throw
329 :			fd-symbol-table write-line throw
330 :			[ [ELSE] ]
331 :			2drop drop
332 :			[ [THEN] ] ;
333 :
334 :
335 :	jwilke	1.77	\ \ -------------------- source file
336 :
337 :			decimal
338 :
339 :			Variable cross-file-list
340 :			0 cross-file-list !
341 :			Variable target-file-list
342 :			0 target-file-list !
343 :			Variable host-file-list
344 :			0 host-file-list !
345 :
346 :			cross-file-list Value file-list
347 :			0 Value source-desc
348 :
349 :			\ file loading
350 :
351 :			: >fl-id 1 cells + ;
352 :			: >fl-name 2 cells + ;
353 :
354 :			Variable filelist 0 filelist !
355 :			Create NoFile ," #load-file#"
356 :
357 :			: loadfile ( -- adr )
358 :			source-desc ?dup IF >fl-name ELSE NoFile THEN ;
359 :
360 :			: sourcefilename ( -- adr len )
361 :			loadfile count ;
362 :
363 :			\ANSI : sourceline# 0 ;
364 :
365 :			\ \ -------------------- path handling from kernel/paths.fs
366 :
367 :			\ paths.fs path file handling 03may97jaw
368 :
369 :			\ -Changing the search-path:
370 :			\ fpath+ <path> adds a directory to the searchpath
371 :			\ fpath= <path>\|<path> makes complete now searchpath
372 :			\ seperator is \|
373 :			\ .fpath displays the search path
374 :			\ remark I:
375 :			\ a ./ in the beginning of filename is expanded to the directory the
376 :			\ current file comes from. ./ can also be included in the search-path!
377 :			\ ~+/ loads from the current working directory
378 :
379 :			\ remark II:
380 :			\ if there is no sufficient space for the search path increase it!
381 :
382 :
383 :			\ -Creating custom paths:
384 :
385 :			\ It is possible to use the search mechanism on yourself.
386 :
387 :			\ Make a buffer for the path:
388 :			\ create mypath 100 chars , \ maximum length (is checked)
389 :			\ 0 , \ real len
390 :			\ 100 chars allot \ space for path
391 :			\ use the same functions as above with:
392 :			\ mypath path+
393 :			\ mypath path=
394 :			\ mypath .path
395 :
396 :			\ do a open with the search path:
397 :			\ open-path-file ( adr len path -- fd adr len ior )
398 :			\ the file is opened read-only; if the file is not found an error is generated
399 :
400 :			\ questions to: wilke@jwdt.com
401 :
402 :			[IFUNDEF] +place
403 :			: +place ( adr len adr )
404 :			2dup >r >r
405 :			dup c@ char+ + swap move
406 :			r> r> dup c@ rot + swap c! ;
407 :			[THEN]
408 :
409 :			[IFUNDEF] place
410 :			: place ( c-addr1 u c-addr2 )
411 :			2dup c! char+ swap move ;
412 :			[THEN]
413 :
414 :			\ if we have path handling, use this and the setup of it
415 :			[IFUNDEF] open-fpath-file
416 :
417 :			create sourcepath 1024 chars , 0 , 1024 chars allot \ !! make this dynamic
418 :			sourcepath value fpath
419 :
420 :			: also-path ( adr len path^ -- )
421 :			>r
422 :			\ len check
423 :			r@ cell+ @ over + r@ @ u> ABORT" path buffer too small!"
424 :			\ copy into
425 :			tuck r@ cell+ dup @ cell+ + swap cmove
426 :			\ make delimiter
427 :			0 r@ cell+ dup @ cell+ + 2 pick + c! 1 + r> cell+ +!
428 :			;
429 :
430 :			: only-path ( adr len path^ -- )
431 :			dup 0 swap cell+ ! also-path ;
432 :
433 :			: path+ ( path-addr "dir" -- ) \ gforth
434 :			\G Add the directory @var{dir} to the search path @var{path-addr}.
435 :			name rot also-path ;
436 :
437 :			: fpath+ ( "dir" ) \ gforth
438 :			\G Add directory @var{dir} to the Forth search path.
439 :			fpath path+ ;
440 :
441 :			: path= ( path-addr "dir1\|dir2\|dir3" ) \ gforth
442 :			\G Make a complete new search path; the path separator is \|.
443 :			name 2dup bounds ?DO i c@ [char] \| = IF 0 i c! THEN LOOP
444 :			rot only-path ;
445 :
446 :			: fpath= ( "dir1\|dir2\|dir3" ) \ gforth
447 :			\G Make a complete new Forth search path; the path separator is \|.
448 :			fpath path= ;
449 :
450 :			: path>counted cell+ dup cell+ swap @ ;
451 :
452 :			: next-path ( adr len -- adr2 len2 )
453 :			2dup 0 scan
454 :			dup 0= IF 2drop 0 -rot 0 -rot EXIT THEN
455 :			>r 1+ -rot r@ 1- -rot
456 :			r> - ;
457 :
458 :			: previous-path ( path^ -- )
459 :			dup path>counted
460 :			BEGIN tuck dup WHILE repeat ;
461 :
462 :			: .path ( path-addr -- ) \ gforth
463 :			\G Display the contents of the search path @var{path-addr}.
464 :			path>counted
465 :			BEGIN next-path dup WHILE type space REPEAT 2drop 2drop ;
466 :
467 :			: .fpath ( -- ) \ gforth
468 :			\G Display the contents of the Forth search path.
469 :			fpath .path ;
470 :
471 :			: absolut-path? ( addr u -- flag ) \ gforth
472 :			\G A path is absolute if it starts with a / or a ~ (~ expansion),
473 :			\G or if it is in the form ./*, extended regexp: ^[/~]\|./, or if
474 :			\G it has a colon as second character ("C:..."). Paths simply
475 :			\G containing a / are not absolute!
476 :			2dup 2 u> swap 1+ c@ [char] : = and >r \ dos absoulte: c:/....
477 :			over c@ [char] / = >r
478 :			over c@ [char] ~ = >r
479 :	anton	1.128	\ 2dup S" ../" string-prefix? r> or >r \ not catered for in expandtopic
480 :			S" ./" string-prefix?
481 :	jwilke	1.77	r> r> r> or or or ;
482 :
483 :			Create ofile 0 c, 255 chars allot
484 :			Create tfile 0 c, 255 chars allot
485 :
486 :			: pathsep? dup [char] / = swap [char] \ = or ;
487 :
488 :			: need/ ofile dup c@ + c@ pathsep? 0= IF s" /" ofile +place THEN ;
489 :
490 :			: extractpath ( adr len -- adr len2 )
491 :			BEGIN dup WHILE 1-
492 :			2dup + c@ pathsep? IF EXIT THEN
493 :			REPEAT ;
494 :
495 :			: remove~+ ( -- )
496 :	anton	1.128	ofile count s" ~+/" string-prefix?
497 :	jwilke	1.77	IF
498 :			ofile count 3 /string ofile place
499 :			THEN ;
500 :
501 :			: expandtopic ( -- ) \ stack effect correct? - anton
502 :			\ expands "./" into an absolute name
503 :	anton	1.128	ofile count s" ./" string-prefix?
504 :	jwilke	1.77	IF
505 :			ofile count 1 /string tfile place
506 :			0 ofile c! sourcefilename extractpath ofile place
507 :			ofile c@ IF need/ THEN
508 :			tfile count over c@ pathsep? IF 1 /string THEN
509 :			ofile +place
510 :			THEN ;
511 :
512 :			: compact.. ( adr len -- adr2 len2 )
513 :	pazsan	1.85	\ deletes phrases like "xy/.." out of our directory name 2dec97jaw
514 :			over swap
515 :			BEGIN dup WHILE
516 :	anton	1.128	dup >r '/ scan 2dup s" /../" string-prefix?
517 :	pazsan	1.85	IF
518 :			dup r> - >r 4 /string over r> + 4 -
519 :			swap 2dup + >r move dup r> over -
520 :			ELSE
521 :			rdrop dup 1 min /string
522 :			THEN
523 :			REPEAT drop over - ;
524 :	jwilke	1.77
525 :			: reworkdir ( -- )
526 :			remove~+
527 :			ofile count compact..
528 :			nip ofile c! ;
529 :
530 :			: open-ofile ( -- fid ior )
531 :			\G opens the file whose name is in ofile
532 :			expandtopic reworkdir
533 :			ofile count r/o open-file ;
534 :
535 :			: check-path ( adr1 len1 adr2 len2 -- fd 0 \| 0 <>0 )
536 :			0 ofile ! >r >r ofile place need/
537 :			r> r> ofile +place
538 :			open-ofile ;
539 :
540 :			: open-path-file ( addr1 u1 path-addr -- wfileid addr2 u2 0 \| ior ) \ gforth
541 :			\G Look in path @var{path-addr} for the file specified by @var{addr1 u1}.
542 :			\G If found, the resulting path and an open file descriptor
543 :			\G are returned. If the file is not found, @var{ior} is non-zero.
544 :			>r
545 :			2dup absolut-path?
546 :			IF rdrop
547 :			ofile place open-ofile
548 :			dup 0= IF >r ofile count r> THEN EXIT
549 :			ELSE r> path>counted
550 :			BEGIN next-path dup
551 :			WHILE 5 pick 5 pick check-path
552 :			0= IF >r 2drop 2drop r> ofile count 0 EXIT ELSE drop THEN
553 :			REPEAT
554 :			2drop 2drop 2drop -38
555 :			THEN ;
556 :
557 :			: open-fpath-file ( addr1 u1 -- wfileid addr2 u2 0 \| ior ) \ gforth
558 :			\G Look in the Forth search path for the file specified by @var{addr1 u1}.
559 :			\G If found, the resulting path and an open file descriptor
560 :			\G are returned. If the file is not found, @var{ior} is non-zero.
561 :			fpath open-path-file ;
562 :
563 :			fpath= ~+
564 :
565 :			[THEN]
566 :
567 :			\ \ -------------------- include require 13may99jaw
568 :
569 :			>CROSS
570 :
571 :			: add-included-file ( adr len -- adr )
572 :			dup >fl-name char+ allocate throw >r
573 :			file-list @ r@ ! r@ file-list !
574 :			r@ >fl-name place r> ;
575 :
576 :			: included? ( c-addr u -- f )
577 :			file-list
578 :			BEGIN @ dup
579 :	anton	1.128	WHILE >r 2dup r@ >fl-name count str=
580 :	jwilke	1.77	IF rdrop 2drop true EXIT THEN
581 :			r>
582 :			REPEAT
583 :			2drop drop false ;
584 :
585 :			false DebugFlag showincludedfiles
586 :
587 :			: included1 ( fd adr u -- )
588 :			\ include file adr u / fd
589 :			\ we don't use fd with include-file, because the forth system
590 :			\ doesn't know the name of the file to get a nice error report
591 :			[d?] showincludedfiles
592 :			IF cr ." Including: " 2dup type ." ..." THEN
593 :			rot close-file throw
594 :			source-desc >r
595 :			add-included-file to source-desc
596 :			sourcefilename
597 :			['] included catch
598 :			r> to source-desc
599 :			throw ;
600 :
601 :			: included ( adr len -- )
602 :			cross-file-list to file-list
603 :			open-fpath-file throw
604 :			included1 ;
605 :
606 :			: required ( adr len -- )
607 :			cross-file-list to file-list
608 :			open-fpath-file throw \ 2dup cr ." R:" type
609 :			2dup included?
610 :			IF 2drop close-file throw
611 :			ELSE included1
612 :			THEN ;
613 :
614 :			: include bl word count included ;
615 :
616 :			: require bl word count required ;
617 :
618 :	jwilke	1.78	0 [IF]
619 :
620 :	jwilke	1.77	also forth definitions previous
621 :
622 :			: included ( adr len -- ) included ;
623 :
624 :			: required ( adr len -- ) required ;
625 :
626 :			: include include ;
627 :
628 :			: require require ;
629 :
630 :	jwilke	1.78	[THEN]
631 :
632 :	jwilke	1.77	>CROSS
633 :			hex
634 :
635 :			\ \ -------------------- Error Handling 05aug97jaw
636 :
637 :			\ Flags
638 :
639 :			also forth definitions \ these values may be predefined before
640 :			\ the cross-compiler is loaded
641 :
642 :			false DefaultValue stack-warn \ check on empty stack at any definition
643 :			false DefaultValue create-forward-warn \ warn on forward declaration of created words
644 :
645 :			previous >CROSS
646 :
647 :			: .dec
648 :			base @ decimal swap . base ! ;
649 :
650 :			: .sourcepos
651 :			cr sourcefilename type ." :"
652 :			sourceline# .dec ;
653 :
654 :			: warnhead
655 :			\G display error-message head
656 :			\G perhaps with linenumber and filename
657 :			.sourcepos ." Warning: " ;
658 :
659 :			: empty? depth IF .sourcepos ." Stack not empty!" THEN ;
660 :
661 :			stack-warn [IF]
662 :			: defempty? empty? ;
663 :			[ELSE]
664 :			: defempty? ; immediate
665 :			[THEN]
666 :
667 :	jwilke	1.105	\ \ -------------------- Compiler Plug Ins 01aug97jaw
668 :
669 :			>CROSS
670 :
671 :			\ Compiler States
672 :
673 :			Variable comp-state
674 :			0 Constant interpreting
675 :			1 Constant compiling
676 :			2 Constant resolving
677 :			3 Constant assembling
678 :
679 :			: compiling? comp-state @ compiling = ;
680 :
681 :			: pi-undefined -1 ABORT" Plugin undefined" ;
682 :
683 :			: Plugin ( -- : pluginname )
684 :			Create
685 :			\ for normal cross-compiling only one action
686 :			\ exists, this fields are identical. For the instant
687 :			\ simulation environment we need, two actions for each plugin
688 :			\ the target one and the one that generates the simulation code
689 :			['] pi-undefined , \ action
690 :			['] pi-undefined , \ target plugin action
691 :			8765 , \ plugin magic
692 :			DOES> perform ;
693 :
694 :			Plugin DummyPlugin
695 :
696 :			: 'PI ( -- addr : pluginname )
697 :			' >body dup 2 cells + @ 8765 <> ABORT" not a plugin" ;
698 :
699 :			: plugin-of ( xt -- : pluginname )
700 :			dup 'PI 2! ;
701 :
702 :			: action-of ( xt -- : plunginname )
703 :			'PI cell+ ! ;
704 :
705 :			: TPA ( -- : plugin )
706 :			\ target plugin action
707 :			\ executes current target action of plugin
708 :			'PI cell+ POSTPONE literal POSTPONE perform ; immediate
709 :
710 :			Variable ppi-temp 0 ppi-temp !
711 :
712 :			: pa:
713 :			\g define plugin action
714 :			ppi-temp @ ABORT" pa: definition not closed"
715 :			'PI ppi-temp ! :noname ;
716 :
717 :			: ;pa
718 :			\g end a definition for plugin action
719 :			POSTPONE ; ppi-temp @ ! 0 ppi-temp ! ; immediate
720 :
721 :
722 :	jwilke	1.107	Plugin dlit, ( d -- ) \ compile numerical value the target
723 :	jwilke	1.105	Plugin lit, ( n -- )
724 :			Plugin alit, ( n -- )
725 :
726 :			Plugin branch, ( target-addr -- ) \ compiles a branch
727 :			Plugin ?branch, ( target-addr -- ) \ compiles a ?branch
728 :			Plugin branchmark, ( -- branch-addr ) \ reserves room for a branch
729 :			Plugin ?branchmark, ( -- branch-addr ) \ reserves room for a ?branch
730 :			Plugin ?domark, ( -- branch-addr ) \ reserves room for a ?do branch
731 :			Plugin branchto, ( -- ) \ actual program position is target of a branch (do e.g. alignment)
732 :			' NOOP plugin-of branchto,
733 :			Plugin branchtoresolve, ( branch-addr -- ) \ resolves a forward reference from branchmark
734 :			Plugin branchtomark, ( -- target-addr ) \ marks a branch destination
735 :
736 :			Plugin colon, ( tcfa -- ) \ compiles call to tcfa at current position
737 :			Plugin prim, ( tcfa -- ) \ compiles primitive invocation
738 :			Plugin colonmark, ( -- addr ) \ marks a colon call
739 :			Plugin colon-resolve ( tcfa addr -- )
740 :
741 :			Plugin addr-resolve ( target-addr addr -- )
742 :			Plugin doer-resolve ( ghost res-pnt target-addr addr -- ghost res-pnt )
743 :
744 :			Plugin ncontrols? ( [ xn ... x1 ] n -- ) \ checks wheter n control structures are open
745 :			Plugin if, ( -- if-token )
746 :			Plugin else, ( if-token -- if-token )
747 :			Plugin then, ( if-token -- )
748 :			Plugin ahead,
749 :			Plugin begin,
750 :			Plugin while,
751 :			Plugin until,
752 :			Plugin again,
753 :			Plugin repeat,
754 :			Plugin cs-swap ( x1 x2 -- x2 x1 )
755 :
756 :			Plugin case, ( -- n )
757 :			Plugin of, ( n -- x1 n )
758 :			Plugin endof, ( x1 n -- x2 n )
759 :			Plugin endcase, ( x1 .. xn n -- )
760 :
761 :			Plugin do, ( -- do-token )
762 :			Plugin ?do, ( -- ?do-token )
763 :			Plugin for, ( -- for-token )
764 :			Plugin loop, ( do-token / ?do-token -- )
765 :			Plugin +loop, ( do-token / ?do-token -- )
766 :			Plugin next, ( for-token )
767 :			Plugin leave, ( -- )
768 :			Plugin ?leave, ( -- )
769 :
770 :	jwilke	1.121	Plugin ca>native \ Convert a code address to the processors
771 :			\ native address. This is used in doprim, and
772 :			\ code/code: primitive definitions word to
773 :			\ convert the addresses.
774 :			\ The only target where we need this is the misc
775 :			\ which is a 16 Bit processor with word addresses
776 :			\ but the forth system we build has a normal byte
777 :			\ addressed memory model
778 :	jwilke	1.105
779 :			Plugin doprim, \ compiles start of a primitive
780 :			Plugin docol, \ compiles start of a colon definition
781 :			Plugin doer,
782 :			Plugin fini, \ compiles end of definition ;s
783 :			Plugin doeshandler,
784 :			Plugin dodoes,
785 :
786 :			Plugin colon-start
787 :			' noop plugin-of colon-start
788 :			Plugin colon-end
789 :			' noop plugin-of colon-end
790 :
791 :			Plugin ]comp \ starts compilation
792 :			' noop plugin-of ]comp
793 :			Plugin comp[ \ ends compilation
794 :			' noop plugin-of comp[
795 :
796 :			Plugin t>body \ we need the system >body
797 :			\ and the target >body
798 :
799 :			>TARGET
800 :			: >body t>body ;
801 :
802 :
803 :	jwilke	1.103	\ Ghost Builder 06oct92py
804 :
805 :	jwilke	1.105	>CROSS
806 :	jwilke	1.103	hex
807 :	jwilke	1.105	\ Values for ghost magic
808 :	jwilke	1.103	4711 Constant <fwd> 4712 Constant <res>
809 :			4713 Constant <imm> 4714 Constant <do:>
810 :			4715 Constant <skip>
811 :
812 :	jwilke	1.105	\ Bitmask for ghost flags
813 :	jwilke	1.103	1 Constant <unique>
814 :	jwilke	1.105	2 Constant <primitive>
815 :
816 :			\ FXIME: move this to general stuff?
817 :			: set-flag ( addr flag -- )
818 :			over @ or swap ! ;
819 :
820 :			: reset-flag ( addr flag -- )
821 :			invert over @ and swap ! ;
822 :
823 :			: get-flag ( addr flag -- f )
824 :			swap @ and 0<> ;
825 :
826 :	jwilke	1.103
827 :			Struct
828 :	jwilke	1.52
829 :	jwilke	1.103	\ link to next ghost (always the first element)
830 :			cell% field >next-ghost
831 :	jwilke	1.52
832 :	jwilke	1.103	\ type of ghost
833 :			cell% field >magic
834 :
835 :			\ pointer where ghost is in target, or if unresolved
836 :			\ points to the where we have to resolve (linked-list)
837 :			cell% field >link
838 :	jwilke	1.52
839 :	jwilke	1.106	\ execution semantics (while target compiling) of ghost
840 :	jwilke	1.103	cell% field >exec
841 :	jwilke	1.52
842 :	jwilke	1.106	\ compilation action of this ghost; this is what is
843 :			\ done to compile a call (or whatever) to this definition.
844 :			\ E.g. >comp contains the semantic of postpone s"
845 :			\ whereas >exec-compile contains the semantic of s"
846 :	jwilke	1.105	cell% field >comp
847 :
848 :	jwilke	1.106	\ Compilation sematics (while parsing) of this ghost. E.g.
849 :			\ "\" will skip the rest of line.
850 :			\ These semantics are defined by Cond: and
851 :			\ if a word is made immediate in instant, then the >exec2 field
852 :			\ gets copied to here
853 :	jwilke	1.103	cell% field >exec-compile
854 :	jwilke	1.52
855 :	jwilke	1.106	\ Additional execution semantics of this ghost. This is used
856 :			\ for code generated by instant and for the doer-xt of created
857 :			\ words
858 :	jwilke	1.103	cell% field >exec2
859 :	jwilke	1.52
860 :	jwilke	1.103	cell% field >created
861 :	jwilke	1.52
862 :	jwilke	1.103	\ the xt of the created ghost word itself
863 :			cell% field >ghost-xt
864 :	jwilke	1.52
865 :	jwilke	1.103	\ pointer to the counted string of the assiciated
866 :			\ assembler label
867 :			cell% field >asm-name
868 :	jwilke	1.52
869 :	jwilke	1.103	\ mapped primitives have a special address, so
870 :			\ we are able to detect them
871 :			cell% field >asm-dummyaddr
872 :
873 :			\ for builder (create, variable...) words
874 :			\ the execution symantics of words built are placed here
875 :			\ this is a doer ghost or a dummy ghost
876 :			cell% field >do:ghost
877 :	pazsan	1.93
878 :	jwilke	1.103	cell% field >ghost-flags
879 :	pazsan	1.93
880 :	jwilke	1.103	cell% field >ghost-name
881 :	jwilke	1.52
882 :	jwilke	1.103	End-Struct ghost-struct
883 :	jwilke	1.52
884 :	jwilke	1.103	Variable ghost-list
885 :			0 ghost-list !
886 :	jwilke	1.52
887 :			Variable executed-ghost \ last executed ghost, needed in tcreate and gdoes>
888 :	jwilke	1.103	\ Variable last-ghost \ last ghost that is created
889 :	jwilke	1.52	Variable last-header-ghost \ last ghost definitions with header
890 :
891 :	jwilke	1.103	\ space for ghosts resolve structure
892 :			\ we create ghosts in a sepearte space
893 :			\ and not to the current host dp, because this
894 :			\ gives trouble with instant while compiling and creating
895 :			\ a ghost for a forward reference
896 :			\ BTW: we cannot allocate another memory region
897 :			\ because allot will check the overflow!!
898 :			Variable cross-space-dp
899 :			Create cross-space 250000 allot here 100 allot align
900 :			Constant cross-space-end
901 :			cross-space cross-space-dp !
902 :			Variable cross-space-dp-orig
903 :
904 :			: cross-space-used cross-space-dp @ cross-space - ;
905 :
906 :			: >space ( -- )
907 :			dp @ cross-space-dp-orig !
908 :			cross-space-dp @ dp ! ;
909 :
910 :			: space> ( -- )
911 :			dp @ dup cross-space-dp !
912 :			cross-space-end u> ABORT" CROSS: cross-space overflow"
913 :			cross-space-dp-orig @ dp ! ;
914 :
915 :	jwilke	1.106	\ this is just for debugging, to see this in the backtrace
916 :	jwilke	1.103	: execute-exec execute ;
917 :			: execute-exec2 execute ;
918 :			: execute-exec-compile execute ;
919 :
920 :			: NoExec
921 :			executed-ghost @ >exec2 @
922 :			?dup
923 :			IF execute-exec2
924 :			ELSE true ABORT" CROSS: Don't execute ghost, or immediate target word"
925 :			THEN ;
926 :
927 :	jwilke	1.105	Defer is-forward
928 :
929 :	jwilke	1.103	: (ghostheader) ( -- )
930 :	jwilke	1.121	ghost-list linked <fwd> , 0 , ['] NoExec , ['] is-forward ,
931 :	pazsan	1.118	0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , ;
932 :	jwilke	1.103
933 :			: ghostheader ( -- ) (ghostheader) 0 , ;
934 :
935 :			' Ghosts >wordlist Constant ghosts-wordlist
936 :
937 :			\ the current wordlist for ghost definitions in the host
938 :			ghosts-wordlist Value current-ghosts
939 :
940 :	jwilke	1.52	: Make-Ghost ( "name" -- ghost )
941 :	jwilke	1.103	>space
942 :			\ save current and create in ghost vocabulary
943 :			get-current >r current-ghosts set-current
944 :			>in @ Create >in !
945 :			\ some forth systems like iForth need the immediate directly
946 :			\ after the word is created
947 :			\ restore current
948 :			r> set-current
949 :			here (ghostheader)
950 :			bl word count string, align
951 :			space>
952 :			\ set ghost-xt field by doing a search
953 :			dup >ghost-name count
954 :			current-ghosts search-wordlist
955 :			0= ABORT" CROSS: Just created, must be there!"
956 :			over >ghost-xt !
957 :			DOES>
958 :			dup executed-ghost !
959 :			>exec @ execute-exec ;
960 :	jwilke	1.52
961 :			\ ghost words 14oct92py
962 :			\ changed: 10may93py/jaw
963 :
964 :	jwilke	1.103	Defer search-ghosts
965 :
966 :			: (search-ghosts) ( adr len -- cfa true \| 0 )
967 :			current-ghosts search-wordlist ;
968 :
969 :			' (search-ghosts) IS search-ghosts
970 :
971 :			: gsearch ( addr len -- ghost true \| 0 )
972 :			search-ghosts
973 :			dup IF swap >body swap THEN ;
974 :
975 :			: gfind ( string -- ghost true / string false )
976 :	jwilke	1.52	\ searches for string in word-list ghosts
977 :	jwilke	1.103	\ dup count type space
978 :			dup >r count gsearch
979 :			dup IF rdrop ELSE r> swap THEN ;
980 :	jwilke	1.52
981 :			: gdiscover ( xt -- ghost true \| xt false )
982 :	jwilke	1.103	>r ghost-list
983 :	jwilke	1.52	BEGIN @ dup
984 :	jwilke	1.103	WHILE dup >magic @ <fwd> <>
985 :			IF dup >link @ r@ =
986 :			IF rdrop true EXIT THEN
987 :			THEN
988 :	jwilke	1.52	REPEAT
989 :	jwilke	1.103	drop r> false ;
990 :	jwilke	1.52
991 :	jwilke	1.105	: xt>ghost ( xt -- ghost )
992 :			gdiscover 0= ABORT" CROSS: ghost not found for this xt" ;
993 :
994 :	jwilke	1.103	: Ghost ( "name" -- ghost )
995 :			>in @ bl word gfind IF nip EXIT THEN
996 :	jwilke	1.52	drop >in ! Make-Ghost ;
997 :
998 :			: >ghostname ( ghost -- adr len )
999 :	jwilke	1.103	>ghost-name count ;
1000 :
1001 :			: forward? ( ghost -- flag )
1002 :			>magic @ <fwd> = ;
1003 :
1004 :			: undefined? ( ghost -- flag )
1005 :			>magic @ dup <fwd> = swap <skip> = or ;
1006 :
1007 :			: immediate? ( ghost -- flag )
1008 :			>magic @ <imm> = ;
1009 :
1010 :			Variable TWarnings
1011 :			TWarnings on
1012 :			Variable Exists-Warnings
1013 :			Exists-Warnings on
1014 :
1015 :			: exists-warning ( ghost -- ghost )
1016 :			TWarnings @ Exists-Warnings @ and
1017 :			IF dup >ghostname warnhead type ." exists " THEN ;
1018 :
1019 :			\ : HeaderGhost Ghost ;
1020 :
1021 :			Variable reuse-ghosts reuse-ghosts off
1022 :
1023 :			: HeaderGhost ( "name" -- ghost )
1024 :			>in @
1025 :			bl word count
1026 :			\ 2dup type space
1027 :			current-ghosts search-wordlist
1028 :			IF >body dup undefined? reuse-ghosts @ or
1029 :			IF nip EXIT
1030 :			ELSE exists-warning
1031 :			THEN
1032 :			drop >in !
1033 :			ELSE >in !
1034 :			THEN
1035 :			\ we keep the execution semantics of the prviously
1036 :			\ defined words, this is a workaround
1037 :			\ for the redefined \ until vocs work
1038 :			Make-Ghost ;
1039 :
1040 :	jwilke	1.78	: .ghost ( ghost -- ) >ghostname type ;
1041 :
1042 :	jwilke	1.77	\ ' >ghostname ALIAS @name
1043 :	jwilke	1.52
1044 :	jwilke	1.115	: findghost ( "ghostname" -- ghost )
1045 :			bl word gfind 0= ABORT" CROSS: Ghost don't exists" ;
1046 :
1047 :	jwilke	1.103	: [G'] ( -- ghost : name )
1048 :			\G ticks a ghost and returns its address
1049 :	jwilke	1.115	findghost
1050 :			state @ IF postpone literal THEN ; immediate
1051 :	jwilke	1.103
1052 :	jwilke	1.105	: g>xt ( ghost -- xt )
1053 :			\G Returns the xt (cfa) of a ghost. Issues a warning if undefined.
1054 :	jwilke	1.103	dup undefined? ABORT" CROSS: forward " >link @ ;
1055 :
1056 :	jwilke	1.105	: g>body ( ghost -- body )
1057 :			\G Returns the body-address (pfa) of a ghost.
1058 :			\G Issues a warning if undefined (a forward-reference).
1059 :			g>xt X >body ;
1060 :
1061 :	jwilke	1.103	1 Constant <label>
1062 :	jwilke	1.52
1063 :	jwilke	1.103	Struct
1064 :			\ bitmask of address type (not used for now)
1065 :			cell% field addr-type
1066 :			\ if this address is an xt, this field points to the ghost
1067 :			cell% field addr-xt-ghost
1068 :			\ a bit mask that tells as what part of the cell
1069 :			\ is refenced from an address pointer, used for assembler generation
1070 :			cell% field addr-refs
1071 :			End-Struct addr-struct
1072 :
1073 :			: %allocerase ( align size -- addr )
1074 :			dup >r %alloc dup r> erase ;
1075 :
1076 :			\ returns the addr struct, define it if 0 reference
1077 :			: define-addr-struct ( addr -- struct-addr )
1078 :			dup @ ?dup IF nip EXIT THEN
1079 :			addr-struct %allocerase tuck swap ! ;
1080 :	jwilke	1.75
1081 :	pazsan	1.118	>cross
1082 :
1083 :	jwilke	1.52	\ Predefined ghosts 12dec92py
1084 :
1085 :	jwilke	1.114	Ghost - drop \ need a ghost otherwise "-" would be treated as a number
1086 :
1087 :	jwilke	1.103	Ghost 0= drop
1088 :			Ghost branch Ghost ?branch 2drop
1089 :			Ghost unloop Ghost ;S 2drop
1090 :	pazsan	1.118	Ghost lit Ghost ! 2drop
1091 :			Ghost noop drop
1092 :	jwilke	1.103	Ghost over Ghost = Ghost drop 2drop drop
1093 :			Ghost 2drop drop
1094 :			Ghost 2dup drop
1095 :	jwilke	1.115	Ghost call drop
1096 :			Ghost @ drop
1097 :			Ghost useraddr drop
1098 :			Ghost execute drop
1099 :			Ghost + drop
1100 :			Ghost decimal drop
1101 :			Ghost hex drop
1102 :	pazsan	1.118	Ghost lit@ drop
1103 :			Ghost lit-perform drop
1104 :			Ghost lit+ drop
1105 :			Ghost does-exec drop
1106 :	jwilke	1.52
1107 :	pazsan	1.119	Ghost :docol Ghost :doesjump Ghost :dodoes 2drop drop
1108 :			Ghost :dovar drop
1109 :
1110 :	jwilke	1.52	\ \ Parameter for target systems 06oct92py
1111 :
1112 :	jwilke	1.103
1113 :	jwilke	1.52	\ we define it ans like...
1114 :			wordlist Constant target-environment
1115 :
1116 :	jwilke	1.103	\ save information of current dictionary to restore with environ>
1117 :			Variable env-current
1118 :	jwilke	1.52
1119 :			: >ENVIRON get-current env-current ! target-environment set-current ;
1120 :			: ENVIRON> env-current @ set-current ;
1121 :	pazsan	1.43
1122 :	anton	1.48	>TARGET
1123 :	pazsan	1.43
1124 :	jwilke	1.103	: environment? ( addr len -- [ x ] true \| false )
1125 :			\G returns the content of environment variable and true or
1126 :			\G false if not present
1127 :			target-environment search-wordlist
1128 :			IF EXECUTE true ELSE false THEN ;
1129 :
1130 :			: $has? ( addr len -- x \| false )
1131 :			\G returns the content of environment variable
1132 :			\G or false if not present
1133 :			T environment? H dup IF drop THEN ;
1134 :
1135 :			: e? ( "name" -- x )
1136 :			\G returns the content of environment variable.
1137 :			\G The variable is expected to exist. If not, issue an error.
1138 :			bl word count T environment? H
1139 :			0= ABORT" environment variable not defined!" ;
1140 :
1141 :			: has? ( "name" --- x \| false )
1142 :			\G returns the content of environment variable
1143 :			\G or false if not present
1144 :			bl word count T $has? H ;
1145 :	jwilke	1.52
1146 :	anton	1.48
1147 :	pazsan	1.54	>ENVIRON get-order get-current swap 1+ set-order
1148 :			true SetValue compiler
1149 :	pazsan	1.83	true SetValue cross
1150 :	pazsan	1.54	true SetValue standard-threading
1151 :			>TARGET previous
1152 :	jwilke	1.52
1153 :	jwilke	1.77	0
1154 :	jwilke	1.103	[IFDEF] mach-file drop mach-file count 1 [THEN]
1155 :			[IFDEF] machine-file drop machine-file 1 [THEN]
1156 :			[IF] included hex
1157 :	jwilke	1.77	[ELSE] cr ." No machine description!" ABORT
1158 :			[THEN]
1159 :	pazsan	1.43
1160 :	jwilke	1.53	>ENVIRON
1161 :
1162 :	pazsan	1.54	T has? ec H
1163 :			[IF]
1164 :			false DefaultValue relocate
1165 :			false DefaultValue file
1166 :			false DefaultValue OS
1167 :			false DefaultValue prims
1168 :			false DefaultValue floating
1169 :			false DefaultValue glocals
1170 :			false DefaultValue dcomps
1171 :			false DefaultValue hash
1172 :			false DefaultValue xconds
1173 :			false DefaultValue header
1174 :	jwilke	1.105	false DefaultValue backtrace
1175 :			false DefaultValue new-input
1176 :			false DefaultValue peephole
1177 :	jwilke	1.129	false DefaultValue abranch
1178 :	pazsan	1.130	true DefaultValue control-rack
1179 :	pazsan	1.54	[THEN]
1180 :
1181 :			true DefaultValue interpreter
1182 :			true DefaultValue ITC
1183 :			false DefaultValue rom
1184 :	jwilke	1.73	true DefaultValue standardthreading
1185 :	jwilke	1.53
1186 :	jwilke	1.52	>TARGET
1187 :	jwilke	1.53	s" relocate" T environment? H
1188 :	jwilke	1.103	\ JAW why set NIL to this?!
1189 :			[IF] drop \ SetValue NIL
1190 :	jwilke	1.113	[ELSE] >ENVIRON X NIL SetValue relocate
1191 :	jwilke	1.53	[THEN]
1192 :	jwilke	1.113	>TARGET
1193 :
1194 :			0 Constant NIL
1195 :	pazsan	1.43
1196 :			>CROSS
1197 :
1198 :	jwilke	1.52	\ \ Create additional parameters 19jan95py
1199 :	pazsan	1.19
1200 :	jwilke	1.71	\ currently cross only works for host machines with address-unit-bits
1201 :			\ eual to 8 because of s! and sc!
1202 :			\ but I start to query the environment just to modularize a little bit
1203 :
1204 :			: check-address-unit-bits ( -- )
1205 :			\ s" ADDRESS-UNIT-BITS" environment?
1206 :			\ IF 8 <> ELSE true THEN
1207 :			\ ABORT" ADDRESS-UNIT-BITS unknown or not equal to 8!"
1208 :
1209 :			\ shit, this doesn't work because environment? is only defined for
1210 :			\ gforth.fi and not kernl???.fi
1211 :			;
1212 :
1213 :			check-address-unit-bits
1214 :			8 Constant bits/byte \ we define: byte is address-unit
1215 :
1216 :			1 bits/byte lshift Constant maxbyte
1217 :	jwilke	1.77	\ this sets byte size for the target machine, (probably right guess) jaw
1218 :	jwilke	1.67
1219 :	pazsan	1.19	T
1220 :	jwilke	1.71	NIL Constant TNIL
1221 :			cell Constant tcell
1222 :			cell<< Constant tcell<<
1223 :			cell>bit Constant tcell>bit
1224 :			bits/char Constant tbits/char
1225 :			bits/char H bits/byte T /
1226 :			Constant tchar
1227 :			float Constant tfloat
1228 :			1 bits/char lshift Constant tmaxchar
1229 :			[IFUNDEF] bits/byte
1230 :			8 Constant tbits/byte
1231 :			[ELSE]
1232 :			bits/byte Constant tbits/byte
1233 :			[THEN]
1234 :	pazsan	1.19	H
1235 :	pazsan	1.81	tbits/char bits/byte / Constant tbyte
1236 :	jwilke	1.71
1237 :	pazsan	1.19
1238 :	anton	1.48	\ Variables 06oct92py
1239 :
1240 :			Variable image
1241 :	jwilke	1.124	Variable (tlast)
1242 :			(tlast) Value tlast TNIL tlast ! \ Last name field
1243 :	anton	1.48	Variable tlastcfa \ Last code field
1244 :			Variable bit$
1245 :	jwilke	1.52
1246 :			\ statistics 10jun97jaw
1247 :
1248 :			Variable headers-named 0 headers-named !
1249 :			Variable user-vars 0 user-vars !
1250 :
1251 :	jwilke	1.67	: target>bitmask-size ( u1 -- u2 )
1252 :			1- tcell>bit rshift 1+ ;
1253 :
1254 :	jwilke	1.105	: allocatetarget ( size -- adr )
1255 :	jwilke	1.67	dup allocate ABORT" CROSS: No memory for target"
1256 :			swap over swap erase ;
1257 :	jwilke	1.52
1258 :	pazsan	1.54	\ \ memregion.fs
1259 :	jwilke	1.52
1260 :
1261 :			Variable last-defined-region \ pointer to last defined region
1262 :			Variable region-link \ linked list with all regions
1263 :			Variable mirrored-link \ linked list for mirrored regions
1264 :			0 dup mirrored-link ! region-link !
1265 :
1266 :	jwilke	1.124	: >rname 8 cells + ;
1267 :			: >rbm 4 cells + ; \ bitfield per cell witch indicates relocation
1268 :	jwilke	1.103	: >rmem 5 cells + ;
1269 :	jwilke	1.124	: >rtype 6 cells + ; \ field per cell witch points to a type struct
1270 :			: >rrom 7 cells + ; \ a -1 indicates that this region is rom
1271 :	jwilke	1.67	: >rlink 3 cells + ;
1272 :	jwilke	1.52	: >rdp 2 cells + ;
1273 :			: >rlen cell+ ;
1274 :			: >rstart ;
1275 :
1276 :	jwilke	1.113	: (region) ( addr len region -- )
1277 :			\G change startaddress and length of an existing region
1278 :			>r r@ last-defined-region !
1279 :			r@ >rlen ! dup r@ >rstart ! r> >rdp ! ;
1280 :	jwilke	1.52
1281 :	jwilke	1.123	: region ( addr len -- "name" )
1282 :	jwilke	1.103	\G create a new region
1283 :	jwilke	1.52	\ check whether predefined region exists
1284 :			save-input bl word find >r >r restore-input throw r> r> 0=
1285 :			IF \ make region
1286 :			drop
1287 :			save-input create restore-input throw
1288 :			here last-defined-region !
1289 :			over ( startaddr ) , ( length ) , ( dp ) ,
1290 :	jwilke	1.124	region-link linked 0 , 0 , 0 , 0 , bl word count string,
1291 :	jwilke	1.52	ELSE \ store new parameters in region
1292 :			bl word drop
1293 :	jwilke	1.113	>body (region)
1294 :	jwilke	1.52	THEN ;
1295 :
1296 :	jwilke	1.103	: borders ( region -- startaddr endaddr )
1297 :			\G returns lower and upper region border
1298 :	jwilke	1.67	dup >rstart @ swap >rlen @ over + ;
1299 :	jwilke	1.52
1300 :	jwilke	1.103	: extent ( region -- startaddr len )
1301 :			\G returns the really used area
1302 :	jwilke	1.67	dup >rstart @ swap >rdp @ over - ;
1303 :	jwilke	1.52
1304 :	jwilke	1.103	: area ( region -- startaddr totallen )
1305 :			\G returns the total area
1306 :	jwilke	1.79	dup >rstart @ swap >rlen @ ;
1307 :	jwilke	1.52
1308 :	jwilke	1.124	: mirrored ( -- )
1309 :			\G mark last defined region as mirrored
1310 :	jwilke	1.52	mirrored-link
1311 :	jwilke	1.68	align linked last-defined-region @ , ;
1312 :	jwilke	1.52
1313 :	jwilke	1.124	: writeprotected
1314 :			\G mark a region as write protected
1315 :			-1 last-defined-region @ >rrom ! ;
1316 :
1317 :	jwilke	1.67	: .addr ( u -- )
1318 :			\G prints a 16 or 32 Bit nice hex value
1319 :	jwilke	1.52	base @ >r hex
1320 :			tcell 2 u>
1321 :	jwilke	1.77	IF s>d <# # # # # [char] . hold # # # # #> type
1322 :	jwilke	1.52	ELSE s>d <# # # # # # #> type
1323 :	jwilke	1.103	THEN r> base ! space ;
1324 :	jwilke	1.52
1325 :			: .regions \G display region statistic
1326 :
1327 :			\ we want to list the regions in the right order
1328 :			\ so first collect all regions on stack
1329 :			0 region-link @
1330 :			BEGIN dup WHILE dup @ REPEAT drop
1331 :			BEGIN dup
1332 :	jwilke	1.67	WHILE cr
1333 :			0 >rlink - >r
1334 :			r@ >rname count tuck type
1335 :	jwilke	1.52	12 swap - 0 max spaces space
1336 :	jwilke	1.67	." Start: " r@ >rstart @ dup .addr space
1337 :			." End: " r@ >rlen @ + .addr space
1338 :			." DP: " r> >rdp @ .addr
1339 :	jwilke	1.52	REPEAT drop
1340 :	jwilke	1.53	s" rom" T $has? H 0= ?EXIT
1341 :	jwilke	1.52	cr ." Mirrored:"
1342 :			mirrored-link @
1343 :			BEGIN dup
1344 :	jwilke	1.67	WHILE space dup cell+ @ >rname count type @
1345 :	jwilke	1.52	REPEAT drop cr
1346 :			;
1347 :
1348 :			\ -------- predefined regions
1349 :
1350 :			0 0 region address-space
1351 :			\ total memory addressed and used by the target system
1352 :
1353 :			0 0 region dictionary
1354 :			\ rom area for the compiler
1355 :
1356 :	jwilke	1.53	T has? rom H
1357 :	jwilke	1.52	[IF]
1358 :			0 0 region ram-dictionary mirrored
1359 :			\ ram area for the compiler
1360 :			[ELSE]
1361 :			' dictionary ALIAS ram-dictionary
1362 :			[THEN]
1363 :
1364 :			0 0 region return-stack
1365 :
1366 :			0 0 region data-stack
1367 :
1368 :			0 0 region tib-region
1369 :
1370 :			' dictionary ALIAS rom-dictionary
1371 :
1372 :
1373 :	jwilke	1.105	: setup-target ( -- ) \G initialize target's memory space
1374 :	jwilke	1.53	s" rom" T $has? H
1375 :	jwilke	1.52	IF \ check for ram and rom...
1376 :	jwilke	1.72	\ address-space area nip 0<>
1377 :	jwilke	1.67	ram-dictionary area nip 0<>
1378 :			rom-dictionary area nip 0<>
1379 :	jwilke	1.72	and 0=
1380 :	jwilke	1.52	ABORT" CROSS: define address-space, rom- , ram-dictionary, with rom-support!"
1381 :			THEN
1382 :			address-space area nip
1383 :			IF
1384 :			address-space area
1385 :			ELSE
1386 :			dictionary area
1387 :			THEN
1388 :	jwilke	1.67	nip 0=
1389 :	jwilke	1.52	ABORT" CROSS: define at least address-space or dictionary!!"
1390 :	jwilke	1.67
1391 :			\ allocate target for each region
1392 :			region-link
1393 :			BEGIN @ dup
1394 :			WHILE dup
1395 :			0 >rlink - >r
1396 :			r@ >rlen @
1397 :			IF \ allocate mem
1398 :	jwilke	1.103	r@ >rlen @ allocatetarget dup image !
1399 :	jwilke	1.67	r@ >rmem !
1400 :
1401 :	jwilke	1.103	r@ >rlen @
1402 :	jwilke	1.67	target>bitmask-size allocatetarget
1403 :	jwilke	1.72	dup bit$ !
1404 :	jwilke	1.103	r@ >rbm !
1405 :	jwilke	1.67
1406 :	jwilke	1.103	r@ >rlen @
1407 :			tcell / 1+ cells allocatetarget r@ >rtype !
1408 :
1409 :			rdrop
1410 :	jwilke	1.67	ELSE r> drop THEN
1411 :	jwilke	1.72	REPEAT drop ;
1412 :
1413 :	jwilke	1.105	\ MakeKernel 22feb99jaw
1414 :	jwilke	1.72
1415 :	pazsan	1.134	: makekernel ( start targetsize -- )
1416 :	jwilke	1.113	\G convenience word to setup the memory of the target
1417 :			\G used by main.fs of the c-engine based systems
1418 :	pazsan	1.134	dictionary (region) setup-target ;
1419 :	jwilke	1.72
1420 :			>MINIMAL
1421 :			: makekernel makekernel ;
1422 :			>CROSS
1423 :	jwilke	1.52
1424 :	pazsan	1.54	\ \ switched tdp for rom support 03jun97jaw
1425 :	jwilke	1.52
1426 :			\ second value is here to store some maximal value for statistics
1427 :			\ tempdp is also embedded here but has nothing to do with rom support
1428 :			\ (needs switched dp)
1429 :
1430 :			variable tempdp 0 , \ temporary dp for resolving
1431 :			variable tempdp-save
1432 :
1433 :			0 [IF]
1434 :			variable romdp 0 , \ Dictionary-Pointer for ramarea
1435 :			variable ramdp 0 , \ Dictionary-Pointer for romarea
1436 :
1437 :			\
1438 :			variable sramdp \ start of ram-area for forth
1439 :			variable sromdp \ start of rom-area for forth
1440 :
1441 :			[THEN]
1442 :
1443 :	jwilke	1.123	0 Value current-region
1444 :			0 Value tdp
1445 :			Variable fixed \ flag: true: no automatic switching
1446 :	jwilke	1.52	\ false: switching is done automatically
1447 :
1448 :			\ Switch-Policy:
1449 :			\
1450 :			\ a header is always compiled into rom
1451 :			\ after a created word (create and variable) compilation goes to ram
1452 :			\
1453 :			\ Be careful: If you want to make the data behind create into rom
1454 :			\ you have to put >rom before create!
1455 :
1456 :			variable constflag constflag off
1457 :
1458 :	jwilke	1.67	: activate ( region -- )
1459 :			\G next code goes to this region
1460 :	jwilke	1.123	dup to current-region >rdp to tdp ;
1461 :	jwilke	1.67
1462 :	jwilke	1.52	: (switchram)
1463 :	jwilke	1.53	fixed @ ?EXIT s" rom" T $has? H 0= ?EXIT
1464 :	jwilke	1.67	ram-dictionary activate ;
1465 :	jwilke	1.52
1466 :			: switchram
1467 :			constflag @
1468 :			IF constflag off ELSE (switchram) THEN ;
1469 :
1470 :			: switchrom
1471 :	jwilke	1.67	fixed @ ?EXIT rom-dictionary activate ;
1472 :	jwilke	1.52
1473 :			: >tempdp ( addr -- )
1474 :			tdp tempdp-save ! tempdp to tdp tdp ! ;
1475 :			: tempdp> ( -- )
1476 :			tempdp-save @ to tdp ;
1477 :
1478 :			: >ram fixed off (switchram) fixed on ;
1479 :			: >rom fixed off switchrom fixed on ;
1480 :			: >auto fixed off switchrom ;
1481 :
1482 :
1483 :
1484 :			\ : romstart dup sromdp ! romdp ! ;
1485 :			\ : ramstart dup sramdp ! ramdp ! ;
1486 :
1487 :	jwilke	1.67	\ default compilation goes to rom
1488 :	jwilke	1.52	\ when romable support is off, only the rom switch is used (!!)
1489 :			>auto
1490 :
1491 :	anton	1.48	: there tdp @ ;
1492 :
1493 :	jwilke	1.52	>TARGET
1494 :	anton	1.48
1495 :	jwilke	1.52	\ \ Target Memory Handling
1496 :	anton	1.1
1497 :			\ Byte ordering and cell size 06oct92py
1498 :
1499 :	pazsan	1.19	: cell+ tcell + ;
1500 :			: cells tcell<< lshift ;
1501 :	jwilke	1.71	: chars tchar * ;
1502 :			: char+ tchar + ;
1503 :	pazsan	1.19	: floats tfloat * ;
1504 :	anton	1.6
1505 :	anton	1.1	>CROSS
1506 :	pazsan	1.19	: cell/ tcell<< rshift ;
1507 :	anton	1.1	>TARGET
1508 :			20 CONSTANT bl
1509 :	jwilke	1.52	\ TNIL Constant NIL
1510 :	anton	1.1
1511 :			>CROSS
1512 :
1513 :	pazsan	1.20	bigendian
1514 :			[IF]
1515 :	jwilke	1.106	: DS! ( d addr -- ) tcell bounds swap 1-
1516 :	pazsan	1.20	DO maxbyte ud/mod rot I c! -1 +LOOP 2drop ;
1517 :	jwilke	1.106	: DS@ ( addr -- d ) >r 0 0 r> tcell bounds
1518 :			DO maxbyte * swap maxbyte um* rot + swap I c@ + swap LOOP ;
1519 :	pazsan	1.57	: Sc! ( n addr -- ) >r s>d r> tchar bounds swap 1-
1520 :			DO maxbyte ud/mod rot I c! -1 +LOOP 2drop ;
1521 :			: Sc@ ( addr -- n ) >r 0 0 r> tchar bounds
1522 :			DO maxbyte * swap maxbyte um* rot + swap I c@ + swap LOOP d>s ;
1523 :	pazsan	1.19	[ELSE]
1524 :	jwilke	1.106	: DS! ( d addr -- ) tcell bounds
1525 :	pazsan	1.20	DO maxbyte ud/mod rot I c! LOOP 2drop ;
1526 :	jwilke	1.106	: DS@ ( addr -- n ) >r 0 0 r> tcell bounds swap 1-
1527 :			DO maxbyte * swap maxbyte um* rot + swap I c@ + swap -1 +LOOP ;
1528 :	pazsan	1.57	: Sc! ( n addr -- ) >r s>d r> tchar bounds
1529 :			DO maxbyte ud/mod rot I c! LOOP 2drop ;
1530 :			: Sc@ ( addr -- n ) >r 0 0 r> tchar bounds swap 1-
1531 :			DO maxbyte * swap maxbyte um* rot + swap I c@ + swap -1 +LOOP d>s ;
1532 :	anton	1.1	[THEN]
1533 :
1534 :	jwilke	1.106	: S! ( n addr -- ) >r s>d r> DS! ;
1535 :			: S@ ( addr -- n ) DS@ d>s ;
1536 :
1537 :	jwilke	1.67	: taddr>region ( taddr -- region \| 0 )
1538 :			\G finds for a target-address the correct region
1539 :			\G returns 0 if taddr is not in range of a target memory region
1540 :			region-link
1541 :			BEGIN @ dup
1542 :			WHILE dup >r
1543 :			0 >rlink - >r
1544 :			r@ >rlen @
1545 :			IF dup r@ borders within
1546 :			IF r> r> drop nip EXIT THEN
1547 :			THEN
1548 :			r> drop
1549 :			r>
1550 :			REPEAT
1551 :			2drop 0 ;
1552 :
1553 :	jwilke	1.103	: taddr>region-abort ( taddr -- region \| 0 )
1554 :	jwilke	1.122	\G Same as taddr>region but aborts if taddr is not
1555 :			\G a valid address in the target address space
1556 :	jwilke	1.103	dup taddr>region dup 0=
1557 :			IF drop cr ." Wrong address: " .addr
1558 :			-1 ABORT" Address out of range!"
1559 :			THEN nip ;
1560 :
1561 :	jwilke	1.67	: (>regionimage) ( taddr -- 'taddr )
1562 :			dup
1563 :			\ find region we want to address
1564 :	jwilke	1.103	taddr>region-abort
1565 :	jwilke	1.67	>r
1566 :			\ calculate offset in region
1567 :			r@ >rstart @ -
1568 :			\ add regions real address in our memory
1569 :			r> >rmem @ + ;
1570 :
1571 :	jwilke	1.124	: (>regionramimage) ( taddr -- 'taddr )
1572 :			\G same as (>regionimage) but aborts if the region is rom
1573 :			dup
1574 :			\ find region we want to address
1575 :			taddr>region-abort
1576 :			>r
1577 :			r@ >rrom @ ABORT" CROSS: region is write-protected!"
1578 :			\ calculate offset in region
1579 :			r@ >rstart @ -
1580 :			\ add regions real address in our memory
1581 :			r> >rmem @ + ;
1582 :
1583 :	jwilke	1.103	: (>regionbm) ( taddr -- 'taddr bitmaskbaseaddr )
1584 :			dup
1585 :			\ find region we want to address
1586 :			taddr>region-abort
1587 :			>r
1588 :			\ calculate offset in region
1589 :			r@ >rstart @ -
1590 :			\ add regions real address in our memory
1591 :			r> >rbm @ ;
1592 :
1593 :			: (>regiontype) ( taddr -- 'taddr )
1594 :			dup
1595 :			\ find region we want to address
1596 :			taddr>region-abort
1597 :			>r
1598 :			\ calculate offset in region
1599 :			r@ >rstart @ - tcell / cells
1600 :			\ add regions real address in our memory
1601 :			r> >rtype @ + ;
1602 :
1603 :	anton	1.1	\ Bit string manipulation 06oct92py
1604 :			\ 9may93jaw
1605 :			CREATE Bittable 80 c, 40 c, 20 c, 10 c, 8 c, 4 c, 2 c, 1 c,
1606 :			: bits ( n -- n ) chars Bittable + c@ ;
1607 :
1608 :			: >bit ( addr n -- c-addr mask ) 8 /mod rot + swap bits ;
1609 :			: +bit ( addr n -- ) >bit over c@ or swap c! ;
1610 :	pazsan	1.4	: -bit ( addr n -- ) >bit invert over c@ and swap c! ;
1611 :	jwilke	1.67
1612 :	jwilke	1.103	: @relbit ( taddr -- f ) (>regionbm) swap cell/ >bit swap c@ and ;
1613 :
1614 :	jwilke	1.84	: (relon) ( taddr -- )
1615 :			[ [IFDEF] fd-relocation-table ]
1616 :			s" +" fd-relocation-table write-file throw
1617 :			dup s>d <# #s #> fd-relocation-table write-line throw
1618 :			[ [THEN] ]
1619 :	jwilke	1.103	(>regionbm) swap cell/ +bit ;
1620 :	jwilke	1.84
1621 :			: (reloff) ( taddr -- )
1622 :			[ [IFDEF] fd-relocation-table ]
1623 :			s" -" fd-relocation-table write-file throw
1624 :			dup s>d <# #s #> fd-relocation-table write-line throw
1625 :			[ [THEN] ]
1626 :	jwilke	1.103	(>regionbm) swap cell/ -bit ;
1627 :	jwilke	1.67
1628 :			: (>image) ( taddr -- absaddr ) image @ + ;
1629 :
1630 :			DEFER >image
1631 :	jwilke	1.124	DEFER >ramimage
1632 :	jwilke	1.67	DEFER relon
1633 :			DEFER reloff
1634 :			DEFER correcter
1635 :
1636 :			T has? relocate H
1637 :			[IF]
1638 :			' (relon) IS relon
1639 :			' (reloff) IS reloff
1640 :	jwilke	1.103	' (>regionimage) IS >image
1641 :	jwilke	1.124	' (>regionimage) IS >ramimage
1642 :	jwilke	1.67	[ELSE]
1643 :			' drop IS relon
1644 :			' drop IS reloff
1645 :	jwilke	1.68	' (>regionimage) IS >image
1646 :	jwilke	1.124	' (>regionimage) IS >ramimage
1647 :	jwilke	1.67	[THEN]
1648 :	anton	1.1
1649 :	jwilke	1.124	: enforce-writeprotection ( -- )
1650 :			['] (>regionramimage) IS >ramimage ;
1651 :
1652 :			: relax-writeprotection ( -- )
1653 :			['] (>regionimage) IS >ramimage ;
1654 :
1655 :			: writeprotection-relaxed? ( -- )
1656 :			['] >ramimage >body @ ['] (>regionimage) = ;
1657 :
1658 :	anton	1.1	\ Target memory access 06oct92py
1659 :
1660 :			: align+ ( taddr -- rest )
1661 :	anton	1.48	tcell tuck 1- and - [ tcell 1- ] Literal and ;
1662 :	anton	1.22	: cfalign+ ( taddr -- rest )
1663 :	pazsan	1.39	\ see kernel.fs:cfaligned
1664 :	pazsan	1.43	/maxalign tuck 1- and - [ /maxalign 1- ] Literal and ;
1665 :	anton	1.1
1666 :			>TARGET
1667 :			: aligned ( taddr -- ta-addr ) dup align+ + ;
1668 :			\ assumes cell alignment granularity (as GNU C)
1669 :
1670 :	anton	1.22	: cfaligned ( taddr1 -- taddr2 )
1671 :	pazsan	1.39	\ see kernel.fs
1672 :	anton	1.22	dup cfalign+ + ;
1673 :
1674 :	jwilke	1.52	: @ ( taddr -- w ) >image S@ ;
1675 :	jwilke	1.124	: ! ( w taddr -- ) >ramimage S! ;
1676 :	pazsan	1.57	: c@ ( taddr -- char ) >image Sc@ ;
1677 :	jwilke	1.124	: c! ( char taddr -- ) >ramimage Sc! ;
1678 :	anton	1.7	: 2@ ( taddr -- x1 x2 ) T dup cell+ @ swap @ H ;
1679 :	pazsan	1.82	: 2! ( x1 x2 taddr -- ) T tuck ! cell+ ! H ;
1680 :	anton	1.1
1681 :			\ Target compilation primitives 06oct92py
1682 :			\ included A! 16may93jaw
1683 :
1684 :			: here ( -- there ) there ;
1685 :			: allot ( n -- ) tdp +! ;
1686 :	jwilke	1.78	: , ( w -- ) T here H tcell T allot ! H ;
1687 :			: c, ( char -- ) T here H tchar T allot c! H ;
1688 :			: align ( -- ) T here H align+ 0 ?DO bl T c, H tchar +LOOP ;
1689 :	anton	1.22	: cfalign ( -- )
1690 :	jwilke	1.78	T here H cfalign+ 0 ?DO bl T c, H tchar +LOOP ;
1691 :	anton	1.1
1692 :	jwilke	1.71	: >address dup 0>= IF tbyte / THEN ; \ ?? jaw
1693 :	pazsan	1.59	: A! swap >address swap dup relon T ! H ;
1694 :			: A, ( w -- ) >address T here H relon T , H ;
1695 :	anton	1.1
1696 :	pazsan	1.118	\ high-level ghosts
1697 :
1698 :			>CROSS
1699 :
1700 :			Ghost (do) Ghost (?do) 2drop
1701 :			Ghost (for) drop
1702 :			Ghost (loop) Ghost (+loop) 2drop
1703 :			Ghost (next) drop
1704 :			Ghost (does>) Ghost (compile) 2drop
1705 :			Ghost (.") Ghost (S") Ghost (ABORT") 2drop drop
1706 :	pazsan	1.130	Ghost (C") Ghost c(abort") Ghost type 2drop drop
1707 :	pazsan	1.118	Ghost ' drop
1708 :
1709 :			\ user ghosts
1710 :
1711 :			Ghost state drop
1712 :	jwilke	1.103
1713 :			\ \ -------------------- Host/Target copy etc. 29aug01jaw
1714 :
1715 :
1716 :			>CROSS
1717 :
1718 :	jwilke	1.107	: TD! >image DS! ;
1719 :			: TD@ >image DS@ ;
1720 :
1721 :	jwilke	1.103	: th-count ( taddr -- host-addr len )
1722 :			\G returns host address of target string
1723 :			assert1( tbyte 1 = )
1724 :			dup X c@ swap X char+ >image swap ;
1725 :
1726 :			: ht-move ( haddr taddr len -- )
1727 :			\G moves data from host-addr to destination in target-addr
1728 :			\G character by character
1729 :			swap -rot bounds ?DO I c@ over X c! X char+ LOOP drop ;
1730 :
1731 :			2Variable last-string
1732 :
1733 :			: ht-string, ( addr count -- )
1734 :			dup there swap last-string 2!
1735 :	pazsan	1.130	dup T c, H bounds ?DO I c@ T c, H LOOP ;
1736 :			: ht-mem, ( addr count )
1737 :			bounds ?DO I c@ T c, H LOOP ;
1738 :	jwilke	1.103
1739 :			>TARGET
1740 :
1741 :			: count dup X c@ swap X char+ swap ;
1742 :	jwilke	1.110
1743 :			: on -1 -1 rot TD! ;
1744 :	jwilke	1.103	: off T 0 swap ! H ;
1745 :	anton	1.1
1746 :	jwilke	1.107	: tcmove ( source dest len -- )
1747 :			\G cmove in target memory
1748 :			tchar * bounds
1749 :			?DO dup T c@ H I T c! H 1+
1750 :			tchar +LOOP drop ;
1751 :
1752 :			: td, ( d -- )
1753 :			\G Store a host value as one cell into the target
1754 :			there tcell X allot TD! ;
1755 :
1756 :			\ \ Load Assembler
1757 :
1758 :			>TARGET
1759 :			H also Forth definitions
1760 :
1761 :			\ FIXME: should we include the assembler really in the forth
1762 :			\ dictionary?!?!?!? This conflicts with the existing assembler
1763 :			\ of the host forth system!!
1764 :			[IFDEF] asm-include asm-include [THEN] hex
1765 :
1766 :			previous
1767 :
1768 :
1769 :	jwilke	1.52	>CROSS
1770 :
1771 :	jwilke	1.103	: (cc) T a, H ; ' (cc) plugin-of colon,
1772 :	jwilke	1.105	: (prim) T a, H ; ' (prim) plugin-of prim,
1773 :	jwilke	1.52
1774 :	pazsan	1.118	: (cr) >tempdp colon, tempdp> ; ' (cr) plugin-of colon-resolve
1775 :	jwilke	1.103	: (ar) T ! H ; ' (ar) plugin-of addr-resolve
1776 :	pazsan	1.54	: (dr) ( ghost res-pnt target-addr addr )
1777 :			>tempdp drop over
1778 :			dup >magic @ <do:> =
1779 :			IF doer,
1780 :			ELSE dodoes,
1781 :			THEN
1782 :	jwilke	1.103	tempdp> ; ' (dr) plugin-of doer-resolve
1783 :	pazsan	1.54
1784 :			: (cm) ( -- addr )
1785 :	jwilke	1.121	there -1 colon, ; ' (cm) plugin-of colonmark,
1786 :	anton	1.1
1787 :	jwilke	1.52	>TARGET
1788 :	jwilke	1.105	: compile, ( xt -- )
1789 :	jwilke	1.107	dup xt>ghost >comp @ EXECUTE ;
1790 :	jwilke	1.52	>CROSS
1791 :	anton	1.1
1792 :	jwilke	1.102	\ resolve structure
1793 :
1794 :			: >next ; \ link to next field
1795 :			: >tag cell+ ; \ indecates type of reference: 0: call, 1: address, 2: doer
1796 :			: >taddr cell+ cell+ ;
1797 :			: >ghost 3 cells + ;
1798 :			: >file 4 cells + ;
1799 :			: >line 5 cells + ;
1800 :
1801 :			: (refered) ( ghost addr tag -- )
1802 :			\G creates a reference to ghost at address taddr
1803 :	jwilke	1.103	>space
1804 :			rot >link linked
1805 :	jwilke	1.102	( taddr tag ) ,
1806 :			( taddr ) ,
1807 :			last-header-ghost @ ,
1808 :			loadfile ,
1809 :			sourceline# ,
1810 :	jwilke	1.103	space>
1811 :	pazsan	1.118	;
1812 :
1813 :	jwilke	1.52	: refered ( ghost tag -- )
1814 :	jwilke	1.53	\G creates a resolve structure
1815 :	pazsan	1.54	T here aligned H swap (refered)
1816 :			;
1817 :
1818 :			: killref ( addr ghost -- )
1819 :			\G kills a forward reference to ghost at position addr
1820 :			\G this is used to eleminate a :dovar refence after making a DOES>
1821 :			dup >magic @ <fwd> <> IF 2drop EXIT THEN
1822 :			swap >r >link
1823 :			BEGIN dup @ dup ( addr last this )
1824 :			WHILE dup >taddr @ r@ =
1825 :			IF @ over !
1826 :			ELSE nip THEN
1827 :			REPEAT rdrop 2drop
1828 :	jwilke	1.53	;
1829 :	anton	1.48
1830 :	jwilke	1.52	Defer resolve-warning
1831 :	anton	1.1
1832 :	jwilke	1.52	: reswarn-test ( ghost res-struct -- ghost res-struct )
1833 :	jwilke	1.78	over cr ." Resolving " .ghost dup ." in " >ghost @ .ghost ;
1834 :	anton	1.1
1835 :	jwilke	1.52	: reswarn-forward ( ghost res-struct -- ghost res-struct )
1836 :	jwilke	1.78	over warnhead .ghost dup ." is referenced in "
1837 :			>ghost @ .ghost ;
1838 :	anton	1.1
1839 :	jwilke	1.52	\ ' reswarn-test IS resolve-warning
1840 :
1841 :	anton	1.1	\ resolve 14oct92py
1842 :
1843 :	pazsan	1.54	: resolve-loop ( ghost resolve-list tcfa -- )
1844 :			>r
1845 :			BEGIN dup WHILE
1846 :			\ dup >tag @ 2 = IF reswarn-forward THEN
1847 :			resolve-warning
1848 :			r@ over >taddr @
1849 :			2 pick >tag @
1850 :			CASE 0 OF colon-resolve ENDOF
1851 :			1 OF addr-resolve ENDOF
1852 :			2 OF doer-resolve ENDOF
1853 :			ENDCASE
1854 :			@ \ next list element
1855 :			REPEAT 2drop rdrop
1856 :			;
1857 :	jwilke	1.52
1858 :			\ : resolve-loop ( ghost tcfa -- ghost tcfa )
1859 :			\ >r dup >link @
1860 :			\ BEGIN dup WHILE dup T @ H r@ rot T ! H REPEAT drop r> ;
1861 :	anton	1.1
1862 :			\ exists 9may93jaw
1863 :
1864 :	jwilke	1.103	: exists ( ghost tcfa -- )
1865 :			\G print warning and set new target link in ghost
1866 :			swap exists-warning
1867 :			>link ! ;
1868 :	jwilke	1.52
1869 :	jwilke	1.105	: colon-resolved ( ghost -- )
1870 :	jwilke	1.121	\ compiles a call to a colon definition,
1871 :			\ compile action for >comp field
1872 :			>link @ colon, ;
1873 :	jwilke	1.105
1874 :			: prim-resolved ( ghost -- )
1875 :	jwilke	1.121	\ compiles a call to a primitive
1876 :	jwilke	1.105	>link @ prim, ;
1877 :
1878 :	jwilke	1.121	: (is-forward) ( ghost -- )
1879 :			colonmark, 0 (refered) ; \ compile space for call
1880 :			' (is-forward) IS is-forward
1881 :
1882 :	pazsan	1.118	0 Value resolved
1883 :	anton	1.1
1884 :	jwilke	1.122	: resolve-forward-references ( ghost resolve-list -- )
1885 :			\ loop through forward referencies
1886 :			comp-state @ >r Resolving comp-state !
1887 :			over >link @ resolve-loop
1888 :			r> comp-state !
1889 :
1890 :			['] noop IS resolve-warning ;
1891 :
1892 :
1893 :			: (resolve) ( ghost tcfa -- ghost resolve-list )
1894 :			\ check for a valid address, it is a primitive reference
1895 :			\ otherwise
1896 :	jwilke	1.103	dup taddr>region 0<> IF
1897 :	jwilke	1.122	\ define this address in the region address type table
1898 :	jwilke	1.103	2dup (>regiontype) define-addr-struct addr-xt-ghost
1899 :			\ we define new address only if empty
1900 :	jwilke	1.105	\ this is for not to take over the alias ghost
1901 :			\ (different ghost, but identical xt)
1902 :	jwilke	1.103	\ but the very first that really defines it
1903 :			dup @ 0= IF ! ELSE 2drop THEN
1904 :			THEN
1905 :	jwilke	1.122	swap >r
1906 :	pazsan	1.118	r@ to resolved
1907 :	jwilke	1.121
1908 :			\ r@ >comp @ ['] is-forward =
1909 :			\ ABORT" >comp action not set on a resolved ghost"
1910 :
1911 :			\ copmile action defaults to colon-resolved
1912 :			\ if this is not right something must be set before
1913 :			\ calling resolve
1914 :			r@ >comp @ ['] is-forward = IF
1915 :	jwilke	1.122	['] colon-resolved r@ >comp !
1916 :			THEN
1917 :			r@ >link @ swap \ ( list tcfa R: ghost )
1918 :			\ mark ghost as resolved
1919 :			r@ >link ! <res> r@ >magic !
1920 :			r> swap ;
1921 :	pazsan	1.54
1922 :	jwilke	1.122	: resolve ( ghost tcfa -- )
1923 :			\G resolve referencies to ghost with tcfa
1924 :			\ is ghost resolved?, second resolve means another
1925 :			\ definition with the same name
1926 :			over undefined? 0= IF exists EXIT THEN
1927 :			(resolve)
1928 :			( ghost resolve-list )
1929 :			resolve-forward-references ;
1930 :
1931 :			: resolve-noforwards ( ghost tcfa -- )
1932 :			\G Same as resolve but complain if there are any
1933 :			\G forward references on this ghost
1934 :			\ is ghost resolved?, second resolve means another
1935 :			\ definition with the same name
1936 :			over undefined? 0= IF exists EXIT THEN
1937 :			(resolve)
1938 :			IF cr ." No forward references allowed on: " .ghost cr
1939 :			-1 ABORT" Illegal forward reference"
1940 :			THEN
1941 :			drop ;
1942 :	anton	1.1
1943 :			\ gexecute ghost, 01nov92py
1944 :
1945 :	jwilke	1.103	: (gexecute) ( ghost -- )
1946 :	jwilke	1.105	dup >comp @ EXECUTE ;
1947 :	jwilke	1.103
1948 :			: gexecute ( ghost -- )
1949 :	jwilke	1.120	dup >magic @ <imm> = ABORT" CROSS: gexecute on immediate word"
1950 :	jwilke	1.103	(gexecute) ;
1951 :	jwilke	1.52
1952 :			: addr, ( ghost -- )
1953 :	jwilke	1.105	dup forward? IF 1 refered 0 T a, H ELSE >link @ T a, H THEN ;
1954 :	jwilke	1.52
1955 :	anton	1.1	\ .unresolved 11may93jaw
1956 :
1957 :			variable ResolveFlag
1958 :
1959 :			\ ?touched 11may93jaw
1960 :
1961 :	jwilke	1.52	: ?touched ( ghost -- flag ) dup forward? swap >link @
1962 :	anton	1.1	0 <> and ;
1963 :
1964 :	jwilke	1.53	: .forwarddefs ( ghost -- )
1965 :	jwilke	1.103	." appeared in:"
1966 :			>link
1967 :			BEGIN @ dup
1968 :			WHILE cr 5 spaces
1969 :			dup >ghost @ .ghost
1970 :			." file " dup >file @ ?dup IF count type ELSE ." CON" THEN
1971 :			." line " dup >line @ .dec
1972 :			REPEAT
1973 :			drop ;
1974 :
1975 :			: ?resolved ( ghost -- )
1976 :			dup ?touched
1977 :			IF ResolveFlag on
1978 :			dup cr .ghost .forwarddefs
1979 :	jwilke	1.53	ELSE drop
1980 :			THEN ;
1981 :	anton	1.1
1982 :			: .unresolved ( -- )
1983 :			ResolveFlag off cr ." Unresolved: "
1984 :	jwilke	1.103	ghost-list
1985 :	anton	1.1	BEGIN @ dup
1986 :			WHILE dup ?resolved
1987 :	anton	1.10	REPEAT drop ResolveFlag @
1988 :			IF
1989 :	anton	1.48	-1 abort" Unresolved words!"
1990 :	anton	1.10	ELSE
1991 :			." Nothing!"
1992 :			THEN
1993 :			cr ;
1994 :	anton	1.1
1995 :	jwilke	1.52	: .stats
1996 :			base @ >r decimal
1997 :			cr ." named Headers: " headers-named @ .
1998 :			r> base ! ;
1999 :
2000 :	jwilke	1.79	>MINIMAL
2001 :
2002 :			: .unresolved .unresolved ;
2003 :
2004 :	anton	1.1	>CROSS
2005 :			\ Header states 12dec92py
2006 :
2007 :	jwilke	1.102	\ : flag! ( 8b -- ) tlast @ dup >r T c@ xor r> c! H ;
2008 :	pazsan	1.90	bigendian [IF] 0 [ELSE] tcell 1- [THEN] Constant flag+
2009 :			: flag! ( w -- ) tlast @ flag+ + dup >r T c@ xor r> c! H ;
2010 :	anton	1.1
2011 :			VARIABLE ^imm
2012 :
2013 :	jwilke	1.105	\ !! should be target wordsize specific
2014 :			$80 constant alias-mask
2015 :			$40 constant immediate-mask
2016 :			$20 constant restrict-mask
2017 :
2018 :	anton	1.1	>TARGET
2019 :	jwilke	1.105	: immediate immediate-mask flag!
2020 :	pazsan	1.18	^imm @ @ dup <imm> = IF drop EXIT THEN
2021 :	anton	1.1	<res> <> ABORT" CROSS: Cannot immediate a unresolved word"
2022 :			<imm> ^imm @ ! ;
2023 :	jwilke	1.105	: restrict restrict-mask flag! ;
2024 :	jwilke	1.52
2025 :	pazsan	1.54	: isdoer
2026 :			\G define a forth word as doer, this makes obviously only sence on
2027 :			\G forth processors such as the PSC1000
2028 :			<do:> last-header-ghost @ >magic ! ;
2029 :	anton	1.1	>CROSS
2030 :
2031 :			\ Target Header Creation 01nov92py
2032 :
2033 :	jwilke	1.103	: ht-lstring, ( addr count -- )
2034 :	jwilke	1.102	dup T , H bounds ?DO I c@ T c, H LOOP ;
2035 :
2036 :	jwilke	1.103	>TARGET
2037 :			: name, ( "name" -- ) bl word count ht-lstring, X cfalign ;
2038 :	anton	1.1	: view, ( -- ) ( dummy ) ;
2039 :	jwilke	1.52	>CROSS
2040 :	anton	1.1
2041 :	pazsan	1.25	\ Target Document Creation (goes to crossdoc.fd) 05jul95py
2042 :
2043 :	pazsan	1.55	s" ./doc/crossdoc.fd" r/w create-file throw value doc-file-id
2044 :	pazsan	1.25	\ contains the file-id of the documentation file
2045 :
2046 :	pazsan	1.40	: T-\G ( -- )
2047 :	pazsan	1.25	source >in @ /string doc-file-id write-line throw
2048 :	pazsan	1.40	postpone \ ;
2049 :	pazsan	1.25
2050 :	pazsan	1.39	Variable to-doc to-doc on
2051 :	pazsan	1.25
2052 :			: cross-doc-entry ( -- )
2053 :			to-doc @ tlast @ 0<> and \ not an anonymous (i.e. noname) header
2054 :			IF
2055 :			s" " doc-file-id write-line throw
2056 :			s" make-doc " doc-file-id write-file throw
2057 :	jwilke	1.102
2058 :	jwilke	1.105	Last-Header-Ghost @ >ghostname doc-file-id write-file throw
2059 :	pazsan	1.25	>in @
2060 :			[char] ( parse 2drop
2061 :			[char] ) parse doc-file-id write-file throw
2062 :			s" )" doc-file-id write-file throw
2063 :			[char] \ parse 2drop
2064 :	pazsan	1.40	T-\G
2065 :	pazsan	1.25	>in !
2066 :	pazsan	1.39	THEN ;
2067 :	pazsan	1.25
2068 :	pazsan	1.28	\ Target TAGS creation
2069 :
2070 :	pazsan	1.39	s" kernel.TAGS" r/w create-file throw value tag-file-id
2071 :	pazsan	1.116	s" kernel.tags" r/w create-file throw value vi-tag-file-id
2072 :	pazsan	1.28	\ contains the file-id of the tags file
2073 :
2074 :			Create tag-beg 2 c, 7F c, bl c,
2075 :			Create tag-end 2 c, bl c, 01 c,
2076 :			Create tag-bof 1 c, 0C c,
2077 :	pazsan	1.116	Create tag-tab 1 c, 09 c,
2078 :	pazsan	1.28
2079 :			2variable last-loadfilename 0 0 last-loadfilename 2!
2080 :
2081 :			: put-load-file-name ( -- )
2082 :	jwilke	1.77	sourcefilename last-loadfilename 2@ d<>
2083 :	pazsan	1.28	IF
2084 :			tag-bof count tag-file-id write-line throw
2085 :	anton	1.31	sourcefilename 2dup
2086 :	pazsan	1.28	tag-file-id write-file throw
2087 :			last-loadfilename 2!
2088 :			s" ,0" tag-file-id write-line throw
2089 :			THEN ;
2090 :
2091 :	pazsan	1.116	: cross-gnu-tag-entry ( -- )
2092 :	pazsan	1.28	tlast @ 0<> \ not an anonymous (i.e. noname) header
2093 :			IF
2094 :			put-load-file-name
2095 :			source >in @ min tag-file-id write-file throw
2096 :			tag-beg count tag-file-id write-file throw
2097 :	pazsan	1.116	Last-Header-Ghost @ >ghostname tag-file-id write-file throw
2098 :	pazsan	1.28	tag-end count tag-file-id write-file throw
2099 :	anton	1.31	base @ decimal sourceline# 0 <# #s #> tag-file-id write-file throw
2100 :	pazsan	1.28	\ >in @ 0 <# #s [char] , hold #> tag-file-id write-line throw
2101 :			s" ,0" tag-file-id write-line throw
2102 :			base !
2103 :			THEN ;
2104 :	pazsan	1.116
2105 :			: cross-vi-tag-entry ( -- )
2106 :			tlast @ 0<> \ not an anonymous (i.e. noname) header
2107 :			IF
2108 :			sourcefilename vi-tag-file-id write-file throw
2109 :			tag-tab count vi-tag-file-id write-file throw
2110 :			Last-Header-Ghost @ >ghostname vi-tag-file-id write-file throw
2111 :			tag-tab count vi-tag-file-id write-file throw
2112 :			s" /^" vi-tag-file-id write-file throw
2113 :			source vi-tag-file-id write-file throw
2114 :			s" $/" vi-tag-file-id write-line throw
2115 :			THEN ;
2116 :
2117 :			: cross-tag-entry ( -- )
2118 :			cross-gnu-tag-entry
2119 :			cross-vi-tag-entry ;
2120 :	pazsan	1.28
2121 :	pazsan	1.43	\ Check for words
2122 :
2123 :			Defer skip? ' false IS skip?
2124 :
2125 :	jwilke	1.103	: skipdef ( "name" -- )
2126 :	jwilke	1.79	\G skip definition of an undefined word in undef-words and
2127 :			\G all-words mode
2128 :	jwilke	1.103	Ghost dup forward?
2129 :	jwilke	1.75	IF >magic <skip> swap !
2130 :			ELSE drop THEN ;
2131 :
2132 :	jwilke	1.103	: tdefined? ( "name" -- flag )
2133 :			Ghost undefined? 0= ;
2134 :	jwilke	1.75
2135 :	jwilke	1.103	: defined2? ( "name" -- flag )
2136 :	jwilke	1.75	\G return true for anything else than forward, even for <skip>
2137 :			\G that's what we want
2138 :	jwilke	1.103	Ghost forward? 0= ;
2139 :	pazsan	1.43
2140 :	jwilke	1.103	: forced? ( "name" -- flag )
2141 :	jwilke	1.79	\G return ture if it is a foreced skip with defskip
2142 :	jwilke	1.103	Ghost >magic @ <skip> = ;
2143 :	jwilke	1.79
2144 :	pazsan	1.43	: needed? ( -- flag ) \ name
2145 :	anton	1.48	\G returns a false flag when
2146 :			\G a word is not defined
2147 :			\G a forward reference exists
2148 :			\G so the definition is not skipped!
2149 :			bl word gfind
2150 :	jwilke	1.75	IF dup undefined?
2151 :	anton	1.48	nip
2152 :			0=
2153 :			ELSE drop true THEN ;
2154 :	pazsan	1.43
2155 :	pazsan	1.44	: doer? ( -- flag ) \ name
2156 :	jwilke	1.103	Ghost >magic @ <do:> = ;
2157 :	pazsan	1.44
2158 :	pazsan	1.43	: skip-defs ( -- )
2159 :			BEGIN refill WHILE source -trailing nip 0= UNTIL THEN ;
2160 :
2161 :	pazsan	1.28	\ Target header creation
2162 :
2163 :	pazsan	1.54	Variable NoHeaderFlag
2164 :			NoHeaderFlag off
2165 :	anton	1.1
2166 :	pazsan	1.54	: 0.r ( n1 n2 -- )
2167 :			base @ >r hex
2168 :			0 swap <# 0 ?DO # LOOP #> type
2169 :			r> base ! ;
2170 :	jwilke	1.84
2171 :			: .sym ( adr len -- )
2172 :			\G escapes / and \ to produce sed output
2173 :	jwilke	1.52	bounds
2174 :			DO I c@ dup
2175 :	jwilke	1.77	CASE [char] / OF drop ." \/" ENDOF
2176 :			[char] \ OF drop ." \\" ENDOF
2177 :	jwilke	1.52	dup OF emit ENDOF
2178 :			ENDCASE
2179 :	pazsan	1.54	LOOP ;
2180 :	jwilke	1.52
2181 :	jwilke	1.103	Defer setup-execution-semantics
2182 :			0 Value lastghost
2183 :
2184 :			: (THeader ( "name" -- ghost )
2185 :	pazsan	1.54	\ >in @ bl word count type 2 spaces >in !
2186 :			\ wordheaders will always be compiled to rom
2187 :			switchrom
2188 :			\ build header in target
2189 :			NoHeaderFlag @
2190 :			IF NoHeaderFlag off
2191 :			ELSE
2192 :			T align H view,
2193 :	jwilke	1.78	tlast @ dup 0> IF tcell - THEN T A, H there tlast !
2194 :	pazsan	1.54	1 headers-named +! \ Statistic
2195 :			>in @ T name, H >in !
2196 :			THEN
2197 :			T cfalign here H tlastcfa !
2198 :	jwilke	1.84	\ Old Symbol table sed-script
2199 :	pazsan	1.54	\ >in @ cr ." sym:s/CFA=" there 4 0.r ." /" bl word count .sym ." /g" cr >in !
2200 :	jwilke	1.103	HeaderGhost
2201 :	jwilke	1.84	\ output symbol table to extra file
2202 :	jwilke	1.123	dup >ghostname there symentry
2203 :	jwilke	1.103	dup Last-Header-Ghost ! dup to lastghost
2204 :	pazsan	1.54	dup >magic ^imm ! \ a pointer for immediate
2205 :	jwilke	1.105	alias-mask flag!
2206 :	jwilke	1.103	cross-doc-entry cross-tag-entry
2207 :			setup-execution-semantics
2208 :			;
2209 :	anton	1.1
2210 :	jwilke	1.52	\ this is the resolver information from ":"
2211 :			\ resolving is done by ";"
2212 :	jwilke	1.103	Variable ;Resolve 1 cells allot
2213 :
2214 :			: hereresolve ( ghost -- )
2215 :			there resolve 0 ;Resolve ! ;
2216 :	anton	1.1
2217 :	pazsan	1.11	: Theader ( "name" -- ghost )
2218 :	jwilke	1.103	(THeader dup hereresolve ;
2219 :
2220 :			Variable aprim-nr -20 aprim-nr !
2221 :
2222 :			: copy-execution-semantics ( ghost-from ghost-dest -- )
2223 :			>r
2224 :			dup >exec @ r@ >exec !
2225 :	pazsan	1.117	dup >comp @ r@ >comp !
2226 :	jwilke	1.103	dup >exec2 @ r@ >exec2 !
2227 :			dup >exec-compile @ r@ >exec-compile !
2228 :			dup >ghost-xt @ r@ >ghost-xt !
2229 :			dup >created @ r@ >created !
2230 :			rdrop drop ;
2231 :	anton	1.1
2232 :			>TARGET
2233 :	jwilke	1.103
2234 :	anton	1.1	: Alias ( cfa -- ) \ name
2235 :	jwilke	1.103	>in @ skip? IF 2drop EXIT THEN >in !
2236 :			(THeader ( S xt ghost )
2237 :	jwilke	1.105	2dup swap xt>ghost swap copy-execution-semantics
2238 :			over resolve T A, H alias-mask flag! ;
2239 :	jwilke	1.103
2240 :			Variable last-prim-ghost
2241 :			0 last-prim-ghost !
2242 :
2243 :			: asmprimname, ( ghost -- : name )
2244 :			dup last-prim-ghost !
2245 :			>r
2246 :			here bl word count string, r@ >asm-name !
2247 :			aprim-nr @ r> >asm-dummyaddr ! ;
2248 :
2249 :			Defer setup-prim-semantics
2250 :
2251 :	jwilke	1.112	: mapprim ( "forthname" "asmlabel" -- )
2252 :	jwilke	1.103	THeader -1 aprim-nr +! aprim-nr @ T A, H
2253 :			asmprimname,
2254 :			setup-prim-semantics ;
2255 :
2256 :	jwilke	1.112	: mapprim: ( "forthname" "asmlabel" -- )
2257 :	jwilke	1.103	-1 aprim-nr +! aprim-nr @
2258 :	jwilke	1.122	Ghost tuck swap resolve-noforwards <do:> swap tuck >magic !
2259 :	jwilke	1.103	asmprimname, ;
2260 :
2261 :	pazsan	1.119	: Doer: ( cfa -- ) \ name
2262 :	jwilke	1.103	>in @ skip? IF 2drop EXIT THEN >in !
2263 :			dup 0< s" prims" T $has? H 0= and
2264 :			IF
2265 :			.sourcepos ." needs doer: " >in @ bl word count type >in ! cr
2266 :			THEN
2267 :	pazsan	1.119	Ghost
2268 :	jwilke	1.122	tuck swap resolve-noforwards <do:> swap >magic ! ;
2269 :	pazsan	1.64
2270 :			Variable prim#
2271 :			: first-primitive ( n -- ) prim# ! ;
2272 :	pazsan	1.132	: group 0 word drop prim# @ 1- -$200 and prim# ! ;
2273 :	pazsan	1.64	: Primitive ( -- ) \ name
2274 :	pazsan	1.117	>in @ skip? IF drop EXIT THEN >in !
2275 :			s" prims" T $has? H 0=
2276 :	jwilke	1.103	IF
2277 :			.sourcepos ." needs prim: " >in @ bl word count type >in ! cr
2278 :			THEN
2279 :			prim# @ (THeader ( S xt ghost )
2280 :	jwilke	1.121	['] prim-resolved over >comp !
2281 :	jwilke	1.105	dup >ghost-flags <primitive> set-flag
2282 :	jwilke	1.122	over resolve-noforwards T A, H alias-mask flag!
2283 :	jwilke	1.103	-1 prim# +! ;
2284 :	anton	1.1	>CROSS
2285 :
2286 :			\ Conditionals and Comments 11may93jaw
2287 :
2288 :	jwilke	1.103	\G saves the existing cond action, this is used for redefining in
2289 :			\G instant
2290 :			Variable cond-xt-old
2291 :
2292 :			: cond-target ( -- )
2293 :			\G Compiles semantic of redefined cond into new one
2294 :			cond-xt-old @ compile, ; immediate restrict
2295 :
2296 :	anton	1.1	: ;Cond
2297 :			postpone ;
2298 :			swap ! ; immediate
2299 :
2300 :	jwilke	1.103	: Cond: ( "name" -- )
2301 :			\g defines a conditional or another word that must
2302 :			\g be executed directly while compiling
2303 :			\g these words have no interpretative semantics by default
2304 :			Ghost
2305 :			>exec-compile
2306 :			dup @ cond-xt-old !
2307 :	anton	1.1	:NONAME ;
2308 :
2309 :
2310 :			: Comment ( -- )
2311 :	jwilke	1.103	>in @ Ghost swap >in ! ' swap
2312 :			2dup >exec-compile ! >exec ! ;
2313 :	anton	1.1
2314 :			Comment ( Comment \
2315 :
2316 :			\ compile 10may93jaw
2317 :
2318 :	jwilke	1.103	: compile ( "name" -- ) \ name
2319 :	jwilke	1.115	findghost
2320 :	jwilke	1.103	dup >exec-compile @ ?dup
2321 :			IF nip compile,
2322 :			ELSE postpone literal postpone gexecute THEN ; immediate restrict
2323 :
2324 :	jwilke	1.52	>TARGET
2325 :
2326 :	jwilke	1.105	: ' ( -- xt )
2327 :			\G returns the target-cfa of a ghost
2328 :	jwilke	1.52	bl word gfind 0= ABORT" CROSS: Ghost don't exists"
2329 :	jwilke	1.105	g>xt ;
2330 :	jwilke	1.52
2331 :	jwilke	1.103	\ FIXME: this works for the current use cases, but is not
2332 :			\ in all cases correct ;-)
2333 :			: comp' X ' 0 ;
2334 :
2335 :	jwilke	1.52	Cond: ['] T ' H alit, ;Cond
2336 :
2337 :			>CROSS
2338 :
2339 :			: [T']
2340 :			\ returns the target-cfa of a ghost, or compiles it as literal
2341 :	jwilke	1.115	postpone [G']
2342 :			state @ IF postpone g>xt ELSE g>xt THEN ; immediate
2343 :	pazsan	1.42
2344 :	jwilke	1.52	\ \ threading modell 13dec92py
2345 :			\ modularized 14jun97jaw
2346 :
2347 :	jwilke	1.106	T 2 cells H Value xt>body
2348 :	jwilke	1.52
2349 :	jwilke	1.103	: (>body) ( cfa -- pfa )
2350 :	jwilke	1.105	xt>body + ; ' (>body) plugin-of t>body
2351 :
2352 :			: fillcfa ( usedcells -- )
2353 :	jwilke	1.106	T cells H xt>body swap -
2354 :	jwilke	1.105	assert1( dup 0 >= )
2355 :			0 ?DO 0 X c, tchar +LOOP ;
2356 :	jwilke	1.52
2357 :	jwilke	1.103	: (doer,) ( ghost -- )
2358 :	jwilke	1.105	addr, 1 fillcfa ; ' (doer,) plugin-of doer,
2359 :	jwilke	1.52
2360 :	jwilke	1.105	: (docol,) ( -- ) [G'] :docol (doer,) ; ' (docol,) plugin-of docol,
2361 :	jwilke	1.52
2362 :	jwilke	1.121	' NOOP plugin-of ca>native
2363 :
2364 :	jwilke	1.52	: (doprim,) ( -- )
2365 :	jwilke	1.105	there xt>body + ca>native T a, H 1 fillcfa ; ' (doprim,) plugin-of doprim,
2366 :	jwilke	1.52
2367 :			: (doeshandler,) ( -- )
2368 :	pazsan	1.119	T cfalign H [G'] :doesjump addr, T 0 , H ; ' (doeshandler,) plugin-of doeshandler,
2369 :	jwilke	1.52
2370 :			: (dodoes,) ( does-action-ghost -- )
2371 :	pazsan	1.119	]comp [G'] :dodoes addr, comp[
2372 :	jwilke	1.52	addr,
2373 :	jwilke	1.103	\ the relocator in the c engine, does not like the
2374 :			\ does-address to marked for relocation
2375 :			[ T e? ec H 0= [IF] ] T here H tcell - reloff [ [THEN] ]
2376 :	jwilke	1.105	2 fillcfa ; ' (dodoes,) plugin-of dodoes,
2377 :	jwilke	1.52
2378 :	jwilke	1.107	: (dlit,) ( n -- ) compile lit td, ; ' (dlit,) plugin-of dlit,
2379 :
2380 :			: (lit,) ( n -- ) s>d dlit, ; ' (lit,) plugin-of lit,
2381 :	jwilke	1.52
2382 :	jwilke	1.67	\ if we dont produce relocatable code alit, defaults to lit, jaw
2383 :	jwilke	1.84	\ this is just for convenience, so we don't have to define alit,
2384 :			\ seperately for embedded systems....
2385 :			T has? relocate H
2386 :	jwilke	1.67	[IF]
2387 :	jwilke	1.105	: (alit,) ( n -- ) compile lit T a, H ; ' (alit,) plugin-of alit,
2388 :	jwilke	1.67	[ELSE]
2389 :	jwilke	1.105	: (alit,) ( n -- ) lit, ; ' (alit,) plugin-of alit,
2390 :	jwilke	1.67	[THEN]
2391 :	jwilke	1.52
2392 :	jwilke	1.105	: (fini,) compile ;s ; ' (fini,) plugin-of fini,
2393 :	pazsan	1.42
2394 :	pazsan	1.43	[IFUNDEF] (code)
2395 :			Defer (code)
2396 :			Defer (end-code)
2397 :			[THEN]
2398 :
2399 :	anton	1.1	>TARGET
2400 :	pazsan	1.43	: Code
2401 :	jwilke	1.52	defempty?
2402 :	jwilke	1.121	(THeader ( ghost )
2403 :			['] prim-resolved over >comp !
2404 :	jwilke	1.122	there resolve-noforwards
2405 :	jwilke	1.121
2406 :	jwilke	1.53	[ T e? prims H 0= [IF] T e? ITC H [ELSE] true [THEN] ] [IF]
2407 :	jwilke	1.52	doprim,
2408 :	anton	1.48	[THEN]
2409 :			depth (code) ;
2410 :	pazsan	1.43
2411 :	jwilke	1.121	\ FIXME : no-compile -1 ABORT" this ghost is not for compilation" ;
2412 :
2413 :	pazsan	1.43	: Code:
2414 :	jwilke	1.52	defempty?
2415 :	jwilke	1.121	Ghost >r
2416 :	jwilke	1.123	r@ >ghostname there symentry
2417 :	jwilke	1.122	r@ there ca>native resolve-noforwards
2418 :	jwilke	1.121	<do:> r@ >magic !
2419 :			r> drop
2420 :	pazsan	1.43	depth (code) ;
2421 :
2422 :			: end-code
2423 :	jwilke	1.52	(end-code)
2424 :	pazsan	1.43	depth ?dup IF 1- <> ABORT" CROSS: Stack changed"
2425 :			ELSE true ABORT" CROSS: Stack empty" THEN
2426 :	jwilke	1.52	;
2427 :	anton	1.14
2428 :	anton	1.1	>CROSS
2429 :	jwilke	1.52
2430 :	anton	1.1	\ tLiteral 12dec92py
2431 :
2432 :			>TARGET
2433 :	pazsan	1.40	Cond: \G T-\G ;Cond
2434 :
2435 :	jwilke	1.105	Cond: Literal ( n -- ) lit, ;Cond
2436 :	jwilke	1.103	Cond: ALiteral ( n -- ) alit, ;Cond
2437 :	anton	1.1
2438 :			: Char ( "<char>" -- ) bl word char+ c@ ;
2439 :	jwilke	1.103	Cond: [Char] ( "<char>" -- ) Char lit, ;Cond
2440 :
2441 :	jwilke	1.104	tchar 1 = [IF]
2442 :	jwilke	1.110	Cond: chars ;Cond
2443 :	jwilke	1.104	[THEN]
2444 :	anton	1.1
2445 :	pazsan	1.43	\ some special literals 27jan97jaw
2446 :
2447 :			Cond: MAXU
2448 :	jwilke	1.125	-1 s>d dlit,
2449 :	jwilke	1.52	;Cond
2450 :	pazsan	1.43
2451 :	jwilke	1.125	tcell 2 = tcell 4 = or tcell 8 = or 0=
2452 :			[IF]
2453 :			.( Warning: MINI and MAXI may not work with this host) cr
2454 :			[THEN]
2455 :
2456 :	pazsan	1.43	Cond: MINI
2457 :	jwilke	1.125	tcell 2 = IF $8000 ELSE $80000000 THEN 0
2458 :			tcell 8 = IF swap THEN dlit,
2459 :	jwilke	1.52	;Cond
2460 :	pazsan	1.43
2461 :			Cond: MAXI
2462 :	jwilke	1.125	tcell 2 = IF $7fff ELSE $7fffffff THEN 0
2463 :			tcell 8 = IF drop -1 swap THEN dlit,
2464 :			;Cond
2465 :	pazsan	1.43
2466 :	anton	1.1	>CROSS
2467 :	jwilke	1.115
2468 :	anton	1.1	\ Target compiling loop 12dec92py
2469 :			\ ">tib trick thrown out 10may93jaw
2470 :			\ number? defined at the top 11may93jaw
2471 :	jwilke	1.77	\ replaced >in by save-input
2472 :
2473 :			: discard 0 ?DO drop LOOP ;
2474 :	anton	1.1
2475 :			\ compiled word might leave items on stack!
2476 :	jwilke	1.77	: tcom ( x1 .. xn n name -- )
2477 :			\ dup count type space
2478 :	jwilke	1.103	gfind
2479 :			IF >r ( discard saved input state ) discard r>
2480 :			dup >exec-compile @ ?dup
2481 :			IF nip execute-exec-compile ELSE gexecute THEN
2482 :	jwilke	1.77	EXIT
2483 :			THEN
2484 :			number? dup
2485 :			IF 0> IF swap lit, THEN lit, discard
2486 :	jwilke	1.103	ELSE 2drop restore-input throw Ghost gexecute THEN ;
2487 :	anton	1.1
2488 :			\ : ; DOES> 13dec92py
2489 :			\ ] 9may93py/jaw
2490 :
2491 :	jwilke	1.115	>CROSS
2492 :
2493 :	jwilke	1.105	: compiling-state ( -- )
2494 :			\G set states to compililng
2495 :	pazsan	1.54	Compiling comp-state !
2496 :	jwilke	1.103	\ if we have a state in target, change it with the compile state
2497 :	jwilke	1.105	[G'] state dup undefined? 0=
2498 :			IF >ghost-xt @ execute X on ELSE drop THEN ;
2499 :
2500 :			: interpreting-state ( -- )
2501 :			\G set states to interpreting
2502 :			\ if target has a state variable, change it according to our state
2503 :			[G'] state dup undefined? 0=
2504 :			IF >ghost-xt @ execute X off ELSE drop THEN
2505 :			Interpreting comp-state ! ;
2506 :	jwilke	1.115
2507 :			>TARGET
2508 :	jwilke	1.105
2509 :			: ]
2510 :			compiling-state
2511 :	anton	1.1	BEGIN
2512 :	jwilke	1.77	BEGIN save-input bl word
2513 :			dup c@ 0= WHILE drop discard refill 0=
2514 :	anton	1.1	ABORT" CROSS: End of file while target compiling"
2515 :			REPEAT
2516 :			tcom
2517 :	jwilke	1.103	compiling? 0=
2518 :	anton	1.1	UNTIL ;
2519 :
2520 :			\ by the way: defining a second interpreter (a compiler-)loop
2521 :			\ is not allowed if a system should be ans conform
2522 :
2523 :	jwilke	1.110	: (:) ( ghost -- )
2524 :			\ common factor of : and :noname. Prepare ;Resolve and start definition
2525 :			;Resolve ! there ;Resolve cell+ !
2526 :			docol, ]comp colon-start depth T ] H ;
2527 :
2528 :	anton	1.1	: : ( -- colon-sys ) \ Name
2529 :	jwilke	1.52	defempty?
2530 :			constflag off \ don't let this flag work over colon defs
2531 :			\ just to go sure nothing unwanted happens
2532 :	pazsan	1.43	>in @ skip? IF drop skip-defs EXIT THEN >in !
2533 :	jwilke	1.110	(THeader (:) ;
2534 :	anton	1.1
2535 :	pazsan	1.37	: :noname ( -- colon-sys )
2536 :	jwilke	1.110	X cfalign there
2537 :			\ define a nameless ghost
2538 :			here ghostheader dup last-header-ghost ! dup to lastghost
2539 :			(:) ;
2540 :	pazsan	1.37
2541 :	jwilke	1.103	Cond: EXIT ( -- ) compile ;S ;Cond
2542 :	anton	1.6
2543 :			Cond: ?EXIT ( -- ) 1 abort" CROSS: using ?exit" ;Cond
2544 :	pazsan	1.2
2545 :	jwilke	1.52	>CROSS
2546 :			: LastXT ;Resolve @ 0= abort" CROSS: no definition for LastXT"
2547 :			;Resolve cell+ @ ;
2548 :
2549 :			>TARGET
2550 :
2551 :	jwilke	1.103	Cond: recurse ( -- ) Last-Header-Ghost @ gexecute ;Cond
2552 :	jwilke	1.52
2553 :	jwilke	1.103	Cond: ; ( -- )
2554 :	jwilke	1.105	depth ?dup
2555 :			IF 1- <> ABORT" CROSS: Stack changed"
2556 :			ELSE true ABORT" CROSS: Stack empty"
2557 :			THEN
2558 :			colon-end
2559 :			fini,
2560 :			comp[
2561 :			;Resolve @
2562 :	pazsan	1.118	IF ['] colon-resolved ;Resolve @ >comp !
2563 :			;Resolve @ ;Resolve cell+ @ resolve
2564 :	jwilke	1.105	THEN
2565 :			interpreting-state
2566 :			;Cond
2567 :
2568 :			Cond: [ ( -- ) interpreting-state ;Cond
2569 :	anton	1.1
2570 :			>CROSS
2571 :	pazsan	1.54
2572 :	pazsan	1.117	0 Value created
2573 :	pazsan	1.54
2574 :	jwilke	1.52	: !does ( does-action -- )
2575 :	pazsan	1.54	tlastcfa @ [G'] :dovar killref
2576 :	pazsan	1.117	>space here >r ghostheader space>
2577 :	jwilke	1.121	['] colon-resolved r@ >comp !
2578 :	pazsan	1.117	r@ created >do:ghost ! r@ swap resolve
2579 :			r> tlastcfa @ >tempdp dodoes, tempdp> ;
2580 :	jwilke	1.103
2581 :			Defer instant-interpret-does>-hook
2582 :
2583 :	pazsan	1.134	T has? peephole H [IF]
2584 :	pazsan	1.118	: does-resolved ( ghost -- )
2585 :			compile does-exec g>xt T a, H ;
2586 :	pazsan	1.134	[ELSE]
2587 :			: does-resolved ( ghost -- )
2588 :			g>xt T a, H ;
2589 :			[THEN]
2590 :	pazsan	1.118
2591 :	jwilke	1.103	: resolve-does>-part ( -- )
2592 :			\ resolve words made by builders
2593 :	jwilke	1.105	Last-Header-Ghost @ >do:ghost @ ?dup
2594 :	pazsan	1.117	IF there resolve THEN ;
2595 :	jwilke	1.103
2596 :	anton	1.1	>TARGET
2597 :	jwilke	1.103	Cond: DOES>
2598 :			compile (does>) doeshandler,
2599 :			resolve-does>-part
2600 :	anton	1.1	;Cond
2601 :	jwilke	1.103
2602 :	pazsan	1.118	: DOES>
2603 :			['] does-resolved created >comp !
2604 :			switchrom doeshandler, T here H !does
2605 :			instant-interpret-does>-hook
2606 :			depth T ] H ;
2607 :	anton	1.1
2608 :			>CROSS
2609 :	jwilke	1.108	\ Creation 01nov92py
2610 :	anton	1.1
2611 :			\ Builder 11may93jaw
2612 :
2613 :	jwilke	1.108	0 Value built
2614 :
2615 :	jwilke	1.105	: Builder ( Create-xt do-ghost "name" -- )
2616 :	jwilke	1.52	\ builds up a builder in current vocabulary
2617 :			\ create-xt is executed when word is interpreted
2618 :	jwilke	1.106	\ do:-xt is executed when the created word from builder is executed
2619 :	jwilke	1.105	\ for do:-xt an additional entry after the normal ghost-entrys is used
2620 :	jwilke	1.52
2621 :	jwilke	1.109	ghost to built
2622 :	jwilke	1.108	built >created @ 0= IF
2623 :			built >created on
2624 :			THEN ;
2625 :	anton	1.1
2626 :	jwilke	1.52	: gdoes, ( ghost -- )
2627 :			\ makes the codefield for a word that is built
2628 :	jwilke	1.103	>do:ghost @ dup undefined? 0=
2629 :	jwilke	1.52	IF
2630 :	pazsan	1.42	dup >magic @ <do:> =
2631 :	pazsan	1.54	IF doer,
2632 :			ELSE dodoes,
2633 :			THEN
2634 :			EXIT
2635 :	jwilke	1.52	THEN
2636 :			\ compile :dodoes gexecute
2637 :			\ T here H tcell - reloff
2638 :	pazsan	1.54	2 refered
2639 :			0 fillcfa
2640 :			;
2641 :	anton	1.1
2642 :	jwilke	1.103	: takeover-x-semantics ( S constructor-ghost new-ghost -- )
2643 :	pazsan	1.117	\g stores execution semantic and compilation semantic in the built word
2644 :			swap >do:ghost @ 2dup swap >do:ghost !
2645 :	jwilke	1.110	\ we use the >exec2 field for the semantic of a created word,
2646 :			\ using exec or exec2 makes no difference for normal cross-compilation
2647 :			\ but is usefull for instant where the exec field is already
2648 :			\ defined (e.g. Vocabularies)
2649 :	jwilke	1.105	2dup >exec @ swap >exec2 !
2650 :			>comp @ swap >comp ! ;
2651 :	jwilke	1.103
2652 :	pazsan	1.118	0 Value createhere
2653 :
2654 :			: create-resolve ( -- )
2655 :			created createhere resolve 0 ;Resolve ! ;
2656 :			: create-resolve-immediate ( -- )
2657 :			create-resolve T immediate H ;
2658 :
2659 :	jwilke	1.52	: TCreate ( <name> -- )
2660 :			create-forward-warn
2661 :			IF ['] reswarn-forward IS resolve-warning THEN
2662 :	jwilke	1.103	executed-ghost @ (Theader
2663 :	pazsan	1.117	dup >created on dup to created
2664 :	pazsan	1.118	2dup takeover-x-semantics
2665 :			there to createhere drop gdoes, ;
2666 :	jwilke	1.52
2667 :			: RTCreate ( <name> -- )
2668 :			\ creates a new word with code-field in ram
2669 :			create-forward-warn
2670 :			IF ['] reswarn-forward IS resolve-warning THEN
2671 :			\ make Alias
2672 :	jwilke	1.103	executed-ghost @ (THeader
2673 :	pazsan	1.118	dup >created on dup to created
2674 :	jwilke	1.103	2dup takeover-x-semantics
2675 :	jwilke	1.105	there 0 T a, H alias-mask flag!
2676 :	jwilke	1.103	\ store poiter to code-field
2677 :	jwilke	1.52	switchram T cfalign H
2678 :			there swap T ! H
2679 :			there tlastcfa !
2680 :	pazsan	1.118	there to createhere drop gdoes, ;
2681 :	anton	1.1
2682 :			: Build: ( -- [xt] [colon-sys] )
2683 :	jwilke	1.52	:noname postpone TCreate ;
2684 :
2685 :			: BuildSmart: ( -- [xt] [colon-sys] )
2686 :			:noname
2687 :	jwilke	1.53	[ T has? rom H [IF] ]
2688 :	jwilke	1.52	postpone RTCreate
2689 :			[ [ELSE] ]
2690 :			postpone TCreate
2691 :			[ [THEN] ] ;
2692 :	anton	1.1
2693 :	jwilke	1.108	: ;Build
2694 :	pazsan	1.118	postpone create-resolve postpone ; built >exec ! ; immediate
2695 :
2696 :			: ;Build-immediate
2697 :			postpone create-resolve-immediate
2698 :			postpone ; built >exec ! ; immediate
2699 :	jwilke	1.108
2700 :	anton	1.1	: gdoes> ( ghost -- addr flag )
2701 :	jwilke	1.110	executed-ghost @ g>body ;
2702 :	anton	1.1
2703 :			\ DO: ;DO 11may93jaw
2704 :
2705 :	jwilke	1.108	: do:ghost! ( ghost -- ) built >do:ghost ! ;
2706 :			: doexec! ( xt -- ) built >do:ghost @ >exec ! ;
2707 :
2708 :			: DO: ( -- [xt] [colon-sys] )
2709 :			here ghostheader do:ghost!
2710 :	jwilke	1.110	:noname postpone gdoes> ;
2711 :	anton	1.1
2712 :	jwilke	1.108	: by: ( -- [xt] [colon-sys] ) \ name
2713 :			Ghost do:ghost!
2714 :	jwilke	1.110	:noname postpone gdoes> ;
2715 :	pazsan	1.42
2716 :	jwilke	1.108	: ;DO ( [xt] [colon-sys] -- )
2717 :			postpone ; doexec! ; immediate
2718 :	anton	1.1
2719 :	jwilke	1.109	: by ( -- ) \ Name
2720 :	jwilke	1.108	Ghost >do:ghost @ do:ghost! ;
2721 :	jwilke	1.107
2722 :	jwilke	1.109	: compile: ( --[xt] [colon-sys] )
2723 :	jwilke	1.107	\G defines a compile time action for created words
2724 :			\G by this builder
2725 :			:noname ;
2726 :
2727 :	jwilke	1.109	: ;compile ( [xt] [colon-sys] -- )
2728 :			postpone ; built >do:ghost @ >comp ! ; immediate
2729 :	jwilke	1.107
2730 :	anton	1.1	\ Variables and Constants 05dec92py
2731 :
2732 :	jwilke	1.108	Builder (Constant)
2733 :			Build: ( n -- ) ;Build
2734 :	jwilke	1.103	by: :docon ( target-body-addr -- n ) T @ H ;DO
2735 :	jwilke	1.52
2736 :	jwilke	1.108	Builder Constant
2737 :			Build: ( n -- ) T , H ;Build
2738 :	jwilke	1.52	by (Constant)
2739 :
2740 :	jwilke	1.108	Builder AConstant
2741 :			Build: ( n -- ) T A, H ;Build
2742 :	jwilke	1.52	by (Constant)
2743 :
2744 :	jwilke	1.108	Builder 2Constant
2745 :			Build: ( d -- ) T , , H ;Build
2746 :	jwilke	1.52	DO: ( ghost -- d ) T dup cell+ @ swap @ H ;DO
2747 :
2748 :	jwilke	1.108	Builder Create
2749 :			BuildSmart: ;Build
2750 :	jwilke	1.103	by: :dovar ( target-body-addr -- addr ) ;DO
2751 :	anton	1.1
2752 :	jwilke	1.108	Builder Variable
2753 :	jwilke	1.53	T has? rom H [IF]
2754 :	jwilke	1.108	Build: ( -- ) T here 0 A, H switchram T align here swap ! 0 , H ( switchrom ) ;Build
2755 :	jwilke	1.52	by (Constant)
2756 :			[ELSE]
2757 :	jwilke	1.108	Build: T 0 , H ;Build
2758 :	anton	1.1	by Create
2759 :	jwilke	1.52	[THEN]
2760 :	anton	1.1
2761 :	jwilke	1.108	Builder 2Variable
2762 :	jwilke	1.53	T has? rom H [IF]
2763 :	jwilke	1.108	Build: ( -- ) T here 0 A, H switchram T align here swap ! 0 , 0 , H ( switchrom ) ;Build
2764 :	pazsan	1.54	by (Constant)
2765 :			[ELSE]
2766 :	jwilke	1.108	Build: T 0 , 0 , H ;Build
2767 :	pazsan	1.54	by Create
2768 :			[THEN]
2769 :
2770 :	jwilke	1.108	Builder AVariable
2771 :	pazsan	1.54	T has? rom H [IF]
2772 :	jwilke	1.108	Build: ( -- ) T here 0 A, H switchram T align here swap ! 0 A, H ( switchrom ) ;Build
2773 :	jwilke	1.52	by (Constant)
2774 :			[ELSE]
2775 :	jwilke	1.108	Build: T 0 A, H ;Build
2776 :	anton	1.1	by Create
2777 :	jwilke	1.52	[THEN]
2778 :	anton	1.1
2779 :	pazsan	1.3	\ User variables 04may94py
2780 :
2781 :			Variable tup 0 tup !
2782 :			Variable tudp 0 tudp !
2783 :	jwilke	1.78
2784 :	pazsan	1.3	: u, ( n -- udp )
2785 :			tup @ tudp @ + T ! H
2786 :	pazsan	1.19	tudp @ dup T cell+ H tudp ! ;
2787 :	jwilke	1.78
2788 :	pazsan	1.3	: au, ( n -- udp )
2789 :			tup @ tudp @ + T A! H
2790 :	pazsan	1.19	tudp @ dup T cell+ H tudp ! ;
2791 :	jwilke	1.78
2792 :	jwilke	1.108	Builder User
2793 :			Build: 0 u, X , ;Build
2794 :	jwilke	1.78	by: :douser ( ghost -- up-addr ) X @ tup @ + ;DO
2795 :	anton	1.1
2796 :	jwilke	1.108	Builder 2User
2797 :			Build: 0 u, X , 0 u, drop ;Build
2798 :	pazsan	1.3	by User
2799 :	anton	1.1
2800 :	jwilke	1.108	Builder AUser
2801 :			Build: 0 au, X , ;Build
2802 :	pazsan	1.3	by User
2803 :	anton	1.1
2804 :	jwilke	1.108	Builder (Value)
2805 :			Build: ( n -- ) ;Build
2806 :			by: :docon ( target-body-addr -- n ) T @ H ;DO
2807 :
2808 :	anton	1.1	Builder Value
2809 :	jwilke	1.108	BuildSmart: T , H ;Build
2810 :			by (Value)
2811 :	anton	1.1
2812 :	pazsan	1.32	Builder AValue
2813 :	jwilke	1.108	BuildSmart: T A, H ;Build
2814 :			by (Value)
2815 :	pazsan	1.32
2816 :	jwilke	1.103	Defer texecute
2817 :
2818 :	jwilke	1.108	Builder Defer
2819 :			BuildSmart: ( -- ) [T'] noop T A, H ;Build
2820 :	jwilke	1.103	by: :dodefer ( ghost -- ) X @ texecute ;DO
2821 :	pazsan	1.37
2822 :	jwilke	1.108	Builder interpret/compile:
2823 :	pazsan	1.118	Build: ( inter comp -- ) swap T A, A, H ;Build-immediate
2824 :	pazsan	1.37	DO: ( ghost -- ) ABORT" CROSS: Don't execute" ;DO
2825 :	pazsan	1.24
2826 :			\ Sturctures 23feb95py
2827 :
2828 :			: nalign ( addr1 n -- addr2 )
2829 :			\ addr2 is the aligned version of addr1 wrt the alignment size n
2830 :			1- tuck + swap invert and ;
2831 :	jwilke	1.109
2832 :	pazsan	1.24
2833 :	jwilke	1.108	Builder (Field)
2834 :			Build: ;Build
2835 :	pazsan	1.44	by: :dofield T @ H + ;DO
2836 :
2837 :	jwilke	1.108	Builder Field
2838 :	anton	1.51	Build: ( align1 offset1 align size "name" -- align2 offset2 )
2839 :			rot dup T , H ( align1 align size offset1 )
2840 :	jwilke	1.108	+ >r nalign r> ;Build
2841 :	pazsan	1.44	by (Field)
2842 :	pazsan	1.24
2843 :	jwilke	1.109	>TARGET
2844 :	anton	1.51	: struct T 1 chars 0 H ;
2845 :	pazsan	1.24	: end-struct T 2Constant H ;
2846 :
2847 :	jwilke	1.52	: cell% ( n -- size align )
2848 :	anton	1.51	T 1 cells H dup ;
2849 :	jwilke	1.109	>CROSS
2850 :	pazsan	1.88
2851 :	jwilke	1.105	\ Input-Methods 01py
2852 :	jwilke	1.103
2853 :	jwilke	1.108	Builder input-method
2854 :			Build: ( m v -- m' v ) dup T , cell+ H ;Build
2855 :	pazsan	1.88	DO: abort" Not in cross mode" ;DO
2856 :
2857 :	jwilke	1.108	Builder input-var
2858 :			Build: ( m v size -- m v' ) over T , H + ;Build
2859 :	pazsan	1.88	DO: abort" Not in cross mode" ;DO
2860 :	pazsan	1.24
2861 :	jwilke	1.108	\ Peephole optimization 05sep01jaw
2862 :
2863 :			\ this section defines different compilation
2864 :			\ actions for created words
2865 :			\ this will help the peephole optimizer
2866 :	jwilke	1.121	\ I (jaw) took this from bernds latest cross-compiler
2867 :	jwilke	1.108	\ changes but seperated it from the original
2868 :			\ Builder words. The final plan is to put this
2869 :			\ into a seperate file, together with the peephole
2870 :			\ optimizer for cross
2871 :
2872 :
2873 :			T has? peephole H [IF]
2874 :
2875 :	jwilke	1.109	>CROSS
2876 :	pazsan	1.118
2877 :	jwilke	1.109	: (callc) compile call T >body a, H ; ' (callc) plugin-of colon,
2878 :	jwilke	1.121	: (callcm) T here 0 a, 0 a, H ; ' (callcm) plugin-of colonmark,
2879 :	pazsan	1.118	: (call-res) >tempdp resolved gexecute tempdp> drop ;
2880 :			' (call-res) plugin-of colon-resolve
2881 :	jwilke	1.121	: (pprim) dup 0< IF $4000 - ELSE
2882 :			cr ." wrong usage of (prim) "
2883 :			dup gdiscover IF .ghost ELSE . THEN cr -1 throw THEN
2884 :			T a, H ; ' (pprim) plugin-of prim,
2885 :	jwilke	1.109
2886 :			\ if we want this, we have to spilt aconstant
2887 :			\ and constant!!
2888 :			\ Builder (Constant)
2889 :			\ compile: g>body X @ lit, ;compile
2890 :	jwilke	1.108
2891 :			Builder (Constant)
2892 :	pazsan	1.118	compile: g>body compile lit@ T a, H ;compile
2893 :	jwilke	1.108
2894 :			Builder (Value)
2895 :	pazsan	1.118	compile: g>body compile lit@ T a, H ;compile
2896 :	jwilke	1.108
2897 :			\ this changes also Variable, AVariable and 2Variable
2898 :			Builder Create
2899 :	pazsan	1.117	compile: g>body alit, ;compile
2900 :	jwilke	1.108
2901 :			Builder User
2902 :			compile: g>body compile useraddr T @ , H ;compile
2903 :
2904 :			Builder Defer
2905 :	pazsan	1.118	compile: g>body compile lit-perform T A, H ;compile
2906 :	jwilke	1.102
2907 :	jwilke	1.108	Builder (Field)
2908 :	pazsan	1.118	compile: g>body T @ H compile lit+ T , H ;compile
2909 :	pazsan	1.117
2910 :			Builder interpret/compile:
2911 :			compile: does-resolved ;compile
2912 :
2913 :			Builder input-method
2914 :			compile: does-resolved ;compile
2915 :
2916 :			Builder input-var
2917 :			compile: does-resolved ;compile
2918 :	jwilke	1.102
2919 :	jwilke	1.108	[THEN]
2920 :	jwilke	1.103
2921 :	jwilke	1.52	\ structural conditionals 17dec92py
2922 :
2923 :			>CROSS
2924 :	jwilke	1.103	: (ncontrols?) ( n -- )
2925 :			\g We expect n open control structures
2926 :			depth over u<=
2927 :			ABORT" CROSS: unstructured, stack underflow"
2928 :			0 ?DO I pick 0=
2929 :			ABORT" CROSS: unstructured"
2930 :			LOOP ; ' (ncontrols?) plugin-of ncontrols?
2931 :
2932 :			\ : ?struc ( flag -- ) ABORT" CROSS: unstructured " ;
2933 :			\ : sys? ( sys -- sys ) dup 0= ?struc ;
2934 :
2935 :	jwilke	1.52	: >mark ( -- sys ) T here ( dup ." M" hex. ) 0 , H ;
2936 :
2937 :	pazsan	1.133	X has? abranch [IF]
2938 :			: branchoffset ( src dest -- ) drop ;
2939 :			: offset, ( n -- ) X A, ;
2940 :			[ELSE]
2941 :			: branchoffset ( src dest -- ) - tchar / ; \ ?? jaw
2942 :			: offset, ( n -- ) X , ;
2943 :			[THEN]
2944 :	jwilke	1.52
2945 :	pazsan	1.133	:noname compile branch X here branchoffset offset, ;
2946 :	pazsan	1.54	IS branch, ( target-addr -- )
2947 :	pazsan	1.133	:noname compile ?branch X here branchoffset offset, ;
2948 :	pazsan	1.54	IS ?branch, ( target-addr -- )
2949 :	pazsan	1.133	:noname compile branch T here 0 H offset, ;
2950 :	pazsan	1.54	IS branchmark, ( -- branchtoken )
2951 :	pazsan	1.133	:noname compile ?branch T here 0 H offset, ;
2952 :	pazsan	1.54	IS ?branchmark, ( -- branchtoken )
2953 :	pazsan	1.133	:noname T here 0 H offset, ;
2954 :	pazsan	1.54	IS ?domark, ( -- branchtoken )
2955 :	jwilke	1.78	:noname dup X @ ?struc X here over branchoffset swap X ! ;
2956 :	pazsan	1.54	IS branchtoresolve, ( branchtoken -- )
2957 :	jwilke	1.78	:noname branchto, X here ;
2958 :	pazsan	1.54	IS branchtomark, ( -- target-addr )
2959 :	jwilke	1.52
2960 :			>TARGET
2961 :
2962 :			\ Structural Conditionals 12dec92py
2963 :
2964 :	jwilke	1.103	\ CLEANUP Cond: BUT sys? swap ;Cond
2965 :			\ CLEANUP Cond: YET sys? dup ;Cond
2966 :	jwilke	1.52
2967 :			>CROSS
2968 :
2969 :	jwilke	1.78	Variable tleavings 0 tleavings !
2970 :	jwilke	1.52
2971 :	jwilke	1.129	: (done) ( do-addr -- )
2972 :			\G resolve branches of leave and ?leave and ?do
2973 :			\G do-addr is the address of the beginning of our
2974 :			\G loop so we can take care of nested loops
2975 :	pazsan	1.54	tleavings @
2976 :			BEGIN dup
2977 :			WHILE
2978 :			>r dup r@ cell+ @ \ address of branch
2979 :			u> 0= \ lower than DO?
2980 :			WHILE
2981 :			r@ 2 cells + @ \ branch token
2982 :			branchtoresolve,
2983 :			r@ @ r> free throw
2984 :			REPEAT r> THEN
2985 :			tleavings ! drop ;
2986 :
2987 :	jwilke	1.53	>TARGET
2988 :
2989 :	jwilke	1.103	\ What for? ANS? JAW Cond: DONE ( addr -- ) (done) ;Cond
2990 :	jwilke	1.53
2991 :			>CROSS
2992 :	pazsan	1.54	: (leave) ( branchtoken -- )
2993 :	jwilke	1.53	3 cells allocate throw >r
2994 :			T here H r@ cell+ !
2995 :			r@ 2 cells + !
2996 :			tleavings @ r@ !
2997 :			r> tleavings ! ;
2998 :			>TARGET
2999 :
3000 :	jwilke	1.103	: (leave,) ( -- )
3001 :			branchmark, (leave) ; ' (leave,) plugin-of leave,
3002 :
3003 :			: (?leave,) ( -- )
3004 :			compile 0= ?branchmark, (leave) ; ' (?leave,) plugin-of ?leave,
3005 :
3006 :			Cond: LEAVE leave, ;Cond
3007 :			Cond: ?LEAVE ?leave, ;Cond
3008 :	jwilke	1.53
3009 :	pazsan	1.54	>CROSS
3010 :			\ !!JW ToDo : Move to general tools section
3011 :
3012 :			: to1 ( x1 x2 xn n -- addr )
3013 :	jwilke	1.103	\G packs n stack elements in am allocated memory region
3014 :	pazsan	1.54	dup dup 1+ cells allocate throw dup >r swap 1+
3015 :			0 DO tuck ! cell+ LOOP
3016 :			drop r> ;
3017 :	jwilke	1.103
3018 :	pazsan	1.54	: 1to ( addr -- x1 x2 xn )
3019 :			\G unpacks the elements saved by to1
3020 :			dup @ swap over cells + swap
3021 :			0 DO dup @ swap 1 cells - LOOP
3022 :			free throw ;
3023 :
3024 :	jwilke	1.129	: loop] ( target-addr -- )
3025 :			branchto,
3026 :	pazsan	1.133	dup X here branchoffset offset,
3027 :	jwilke	1.129	tcell - (done) ;
3028 :	pazsan	1.54
3029 :			: skiploop] ?dup IF branchto, branchtoresolve, THEN ;
3030 :
3031 :			>TARGET
3032 :
3033 :	jwilke	1.52	\ Structural Conditionals 12dec92py
3034 :
3035 :	jwilke	1.103	: (cs-swap) ( x1 x2 -- x2 x1 )
3036 :			swap ; ' (cs-swap) plugin-of cs-swap
3037 :
3038 :			: (ahead,) branchmark, ; ' (ahead,) plugin-of ahead,
3039 :
3040 :			: (if,) ?branchmark, ; ' (if,) plugin-of if,
3041 :
3042 :			: (then,) branchto, branchtoresolve, ; ' (then,) plugin-of then,
3043 :
3044 :			: (else,) ( ahead ) branchmark,
3045 :			swap
3046 :			( then ) branchto, branchtoresolve, ; ' (else,) plugin-of else,
3047 :
3048 :			: (begin,) branchtomark, ; ' (begin,) plugin-of begin,
3049 :
3050 :			: (while,) ( if ) ?branchmark,
3051 :			swap ; ' (while,) plugin-of while,
3052 :
3053 :			: (again,) branch, ; ' (again,) plugin-of again,
3054 :
3055 :			: (until,) ?branch, ; ' (until,) plugin-of until,
3056 :
3057 :			: (repeat,) ( again ) branch,
3058 :			( then ) branchto, branchtoresolve, ; ' (repeat,) plugin-of repeat,
3059 :
3060 :			: (case,) ( -- n )
3061 :			0 ; ' (case,) plugin-of case,
3062 :
3063 :			: (of,) ( n -- x1 n )
3064 :			1+ >r
3065 :			compile over compile =
3066 :			if, compile drop r> ; ' (of,) plugin-of of,
3067 :
3068 :			: (endof,) ( x1 n -- x2 n )
3069 :			>r 1 ncontrols? else, r> ; ' (endof,) plugin-of endof,
3070 :
3071 :			: (endcase,) ( x1 .. xn n -- )
3072 :			compile drop 0 ?DO 1 ncontrols? then, LOOP ; ' (endcase,) plugin-of endcase,
3073 :
3074 :	jwilke	1.53	>TARGET
3075 :	jwilke	1.103	Cond: AHEAD ahead, ;Cond
3076 :			Cond: IF if, ;Cond
3077 :			Cond: THEN 1 ncontrols? then, ;Cond
3078 :			Cond: ENDIF 1 ncontrols? then, ;Cond
3079 :			Cond: ELSE 1 ncontrols? else, ;Cond
3080 :
3081 :			Cond: BEGIN begin, ;Cond
3082 :			Cond: WHILE 1 ncontrols? while, ;Cond
3083 :			Cond: AGAIN 1 ncontrols? again, ;Cond
3084 :			Cond: UNTIL 1 ncontrols? until, ;Cond
3085 :			Cond: REPEAT 2 ncontrols? repeat, ;Cond
3086 :
3087 :			Cond: CASE case, ;Cond
3088 :			Cond: OF of, ;Cond
3089 :			Cond: ENDOF endof, ;Cond
3090 :			Cond: ENDCASE endcase, ;Cond
3091 :	anton	1.1
3092 :			\ Structural Conditionals 12dec92py
3093 :
3094 :	jwilke	1.103	: (do,) ( -- target-addr )
3095 :			\ ?? i think 0 is too much! jaw
3096 :	pazsan	1.54	0 compile (do)
3097 :	jwilke	1.103	branchtomark, 2 to1 ; ' (do,) plugin-of do,
3098 :	pazsan	1.54
3099 :	jwilke	1.103	\ alternative for if no ?do
3100 :			\ : (do,)
3101 :	pazsan	1.54	\ compile 2dup compile = compile IF
3102 :			\ compile 2drop compile ELSE
3103 :			\ compile (do) branchtomark, 2 to1 ;
3104 :
3105 :	jwilke	1.103	: (?do,) ( -- target-addr )
3106 :	pazsan	1.54	0 compile (?do) ?domark, (leave)
3107 :	jwilke	1.103	branchtomark, 2 to1 ; ' (?do,) plugin-of ?do,
3108 :
3109 :			: (for,) ( -- target-addr )
3110 :			compile (for) branchtomark, ; ' (for,) plugin-of for,
3111 :
3112 :			: (loop,) ( target-addr -- )
3113 :			1to compile (loop) loop]
3114 :			compile unloop skiploop] ; ' (loop,) plugin-of loop,
3115 :
3116 :			: (+loop,) ( target-addr -- )
3117 :			1to compile (+loop) loop]
3118 :			compile unloop skiploop] ; ' (+loop,) plugin-of +loop,
3119 :
3120 :			: (next,)
3121 :			compile (next) loop] compile unloop ; ' (next,) plugin-of next,
3122 :
3123 :			Cond: DO do, ;Cond
3124 :			Cond: ?DO ?do, ;Cond
3125 :			Cond: FOR for, ;Cond
3126 :
3127 :			Cond: LOOP 1 ncontrols? loop, ;Cond
3128 :			Cond: +LOOP 1 ncontrols? +loop, ;Cond
3129 :			Cond: NEXT 1 ncontrols? next, ;Cond
3130 :	jwilke	1.52
3131 :	anton	1.1	\ String words 23feb93py
3132 :
3133 :	jwilke	1.103	: ," [char] " parse ht-string, X align ;
3134 :	anton	1.1
3135 :	pazsan	1.130	X has? control-rack [IF]
3136 :	jwilke	1.103	Cond: ." compile (.") T ," H ;Cond
3137 :			Cond: S" compile (S") T ," H ;Cond
3138 :			Cond: C" compile (C") T ," H ;Cond
3139 :			Cond: ABORT" compile (ABORT") T ," H ;Cond
3140 :	pazsan	1.130	[ELSE]
3141 :			Cond: ." '" parse tuck 2>r ahead, there 2r> ht-mem, X align
3142 :			>r then, r> compile ALiteral compile Literal compile type ;Cond
3143 :			Cond: S" '" parse tuck 2>r ahead, there 2r> ht-mem, X align
3144 :			>r then, r> compile ALiteral compile Literal ;Cond
3145 :			Cond: C" ahead, there [char] " parse ht-string, X align
3146 :			>r then, r> compile ALiteral ;Cond
3147 :			Cond: ABORT" if, ahead, there [char] " parse ht-string, X align
3148 :			>r then, r> compile ALiteral compile c(abort") then, ;Cond
3149 :			[THEN]
3150 :	anton	1.1
3151 :			Cond: IS T ' >body H compile ALiteral compile ! ;Cond
3152 :	pazsan	1.66	: IS T >address ' >body ! H ;
3153 :	pazsan	1.9	Cond: TO T ' >body H compile ALiteral compile ! ;Cond
3154 :			: TO T ' >body ! H ;
3155 :	anton	1.1
3156 :	jwilke	1.52	Cond: defers T ' >body @ compile, H ;Cond
3157 :
3158 :	anton	1.1	\ LINKED ERR" ENV" 2ENV" 18may93jaw
3159 :
3160 :			\ linked list primitive
3161 :	jwilke	1.79	: linked X here over X @ X A, swap X ! ;
3162 :	jwilke	1.52	: chained T linked A, H ;
3163 :	anton	1.1
3164 :			: err" s" ErrLink linked" evaluate T , H
3165 :	jwilke	1.103	[char] " parse ht-string, X align ;
3166 :	anton	1.1
3167 :			: env" [char] " parse s" EnvLink linked" evaluate
3168 :	jwilke	1.103	ht-string, X align X , ;
3169 :	anton	1.1
3170 :			: 2env" [char] " parse s" EnvLink linked" evaluate
3171 :	jwilke	1.103	here >r ht-string, X align X , X ,
3172 :	anton	1.1	r> dup T c@ H 80 and swap T c! H ;
3173 :
3174 :			\ compile must be last 22feb93py
3175 :
3176 :	jwilke	1.103	Cond: [compile] ( -- ) \ name
3177 :			\g For immediate words, works even if forward reference
3178 :			bl word gfind 0= ABORT" CROSS: Can't compile"
3179 :			(gexecute) ;Cond
3180 :
3181 :			Cond: postpone ( -- ) \ name
3182 :			bl word gfind 0= ABORT" CROSS: Can't compile"
3183 :			dup >magic @ <fwd> =
3184 :			ABORT" CROSS: Can't postpone on forward declaration"
3185 :			dup >magic @ <imm> =
3186 :			IF (gexecute)
3187 :			ELSE compile (compile) addr, THEN ;Cond
3188 :	pazsan	1.54
3189 :	jwilke	1.77	\ save-cross 17mar93py
3190 :
3191 :			hex
3192 :
3193 :			>CROSS
3194 :	anton	1.131	Create magic s" Gforth3x" here over allot swap move
3195 :	jwilke	1.77
3196 :			bigendian 1+ \ strangely, in magic big=0, little=1
3197 :			tcell 1 = 0 and or
3198 :			tcell 2 = 2 and or
3199 :			tcell 4 = 4 and or
3200 :			tcell 8 = 6 and or
3201 :			tchar 1 = 00 and or
3202 :			tchar 2 = 28 and or
3203 :			tchar 4 = 50 and or
3204 :			tchar 8 = 78 and or
3205 :			magic 7 + c!
3206 :
3207 :			: save-cross ( "image-name" "binary-name" -- )
3208 :			bl parse ." Saving to " 2dup type cr
3209 :			w/o bin create-file throw >r
3210 :	jwilke	1.113	s" header" X $has? IF
3211 :	anton	1.80	s" #! " r@ write-file throw
3212 :			bl parse r@ write-file throw
3213 :			s" --image-file" r@ write-file throw
3214 :	jwilke	1.77	#lf r@ emit-file throw
3215 :			r@ dup file-position throw drop 8 mod 8 swap ( file-id limit index )
3216 :			?do
3217 :			bl over emit-file throw
3218 :			loop
3219 :			drop
3220 :			magic 8 r@ write-file throw \ write magic
3221 :			ELSE
3222 :			bl parse 2drop
3223 :			THEN
3224 :			image @ there
3225 :			r@ write-file throw \ write image
3226 :	jwilke	1.113	s" relocate" X $has? IF
3227 :	jwilke	1.77	bit$ @ there 1- tcell>bit rshift 1+
3228 :			r@ write-file throw \ write tags
3229 :			THEN
3230 :			r> close-file throw ;
3231 :
3232 :			: save-region ( addr len -- )
3233 :			bl parse w/o bin create-file throw >r
3234 :			swap >image swap r@ write-file throw
3235 :			r> close-file throw ;
3236 :
3237 :	jwilke	1.110	\ save-asm-region 29aug01jaw
3238 :	jwilke	1.103
3239 :			Variable name-ptr
3240 :			Create name-buf 200 chars allot
3241 :			: init-name-buf name-buf name-ptr ! ;
3242 :			: nb, name-ptr @ c! 1 chars name-ptr +! ;
3243 :			: $nb, ( adr len -- ) bounds ?DO I c@ nb, LOOP ;
3244 :			: @nb name-ptr @ name-buf tuck - ;
3245 :
3246 :			\ stores a usefull string representation of the character
3247 :			\ in the name buffer
3248 :			: name-char, ( c -- )
3249 :			dup 'a 'z 1+ within IF nb, EXIT THEN
3250 :			dup 'A 'Z 1+ within IF $20 + nb, EXIT THEN
3251 :			dup '0 '9 1+ within IF nb, EXIT THEN
3252 :			CASE '+ OF s" _PLUS" $nb, ENDOF
3253 :			'- OF s" _MINUS" $nb, ENDOF
3254 :			'* OF s" _STAR" $nb, ENDOF
3255 :			'/ OF s" _SLASH" $nb, ENDOF
3256 :			'' OF s" _TICK" $nb, ENDOF
3257 :			'( OF s" _OPAREN" $nb, ENDOF
3258 :			') OF s" _CPAREN" $nb, ENDOF
3259 :			'[ OF s" _OBRACKET" $nb, ENDOF
3260 :			'] OF s" _CBRACKET" $nb, ENDOF
3261 :			'! OF s" _STORE" $nb, ENDOF
3262 :			'@ OF s" _FETCH" $nb, ENDOF
3263 :			'> OF s" _GREATER" $nb, ENDOF
3264 :			'< OF s" _LESS" $nb, ENDOF
3265 :			'= OF s" _EQUAL" $nb, ENDOF
3266 :			'# OF s" _HASH" $nb, ENDOF
3267 :			'? OF s" _QUEST" $nb, ENDOF
3268 :			': OF s" _COL" $nb, ENDOF
3269 :			'; OF s" _SEMICOL" $nb, ENDOF
3270 :			', OF s" _COMMA" $nb, ENDOF
3271 :			'. OF s" _DOT" $nb, ENDOF
3272 :			'" OF s" _DQUOT" $nb, ENDOF
3273 :			dup
3274 :			base @ >r hex s>d <# #s 'X hold '_ hold #> $nb, r> base !
3275 :			ENDCASE ;
3276 :
3277 :			: label-from-ghostname ( ghost -- addr len )
3278 :			dup >ghostname init-name-buf 'L nb, bounds
3279 :			?DO I c@ name-char, LOOP
3280 :			\ we add the address to a name to make in unique
3281 :			\ because one name may appear more then once
3282 :			\ there are names (e.g. boot) that may be reference from other
3283 :			\ assembler source files, so we declare them as unique
3284 :			\ and don't add the address suffix
3285 :			dup >ghost-flags @ <unique> and 0=
3286 :			IF s" __" $nb, >link @ base @ >r hex 0 <# #s 'L hold #> r> base ! $nb,
3287 :			ELSE drop
3288 :			THEN
3289 :			@nb ;
3290 :
3291 :	jwilke	1.111	\ FIXME why disabled?!
3292 :	jwilke	1.103	: label-from-ghostnameXX ( ghost -- addr len )
3293 :			\ same as (label-from-ghostname) but caches generated names
3294 :			dup >asm-name @ ?dup IF nip count EXIT THEN
3295 :			\ dup >r (label-from-ghostname) 2dup
3296 :			align here >r string, align
3297 :			r> r> >asm-name ! ;
3298 :
3299 :			: primghostdiscover ( xt -- ghost true \| xt false )
3300 :			dup 0= IF false EXIT THEN
3301 :			>r last-prim-ghost
3302 :			BEGIN @ dup
3303 :			WHILE dup >asm-dummyaddr @ r@ =
3304 :			IF rdrop true EXIT THEN
3305 :			REPEAT
3306 :			drop r> false ;
3307 :
3308 :			: gdiscover2 ( xt -- ghost true \| xt false )
3309 :			dup taddr>region 0= IF false EXIT THEN
3310 :			dup (>regiontype) @ dup 0= IF drop false EXIT THEN
3311 :			addr-xt-ghost @ dup 0= IF drop false EXIT THEN
3312 :			nip true ;
3313 :			\ dup >ghost-name @ IF nip true ELSE drop false THEN ;
3314 :
3315 :			\ generates a label name for the target address
3316 :			: generate-label-name ( taddr -- addr len )
3317 :			gdiscover2
3318 :			IF dup >magic @ <do:> =
3319 :			IF >asm-name @ count EXIT THEN
3320 :			label-from-ghostname
3321 :			ELSE
3322 :			primghostdiscover
3323 :			IF >asm-name @ count
3324 :			ELSE base @ >r hex 0 <# #s 'L hold #> r> base !
3325 :			THEN
3326 :			THEN ;
3327 :
3328 :			Variable outfile-fd
3329 :
3330 :			: $out ( adr len -- ) outfile-fd @ write-file throw ;
3331 :			: nlout newline $out ;
3332 :			: .ux ( n -- )
3333 :			base @ hex swap 0 <# #S #> $out base ! ;
3334 :
3335 :			: save-asm-region-part-aligned ( taddr len -- 'taddr 'len )
3336 :			dup cell/ 0
3337 :			?DO nlout s" .word " $out over @relbit
3338 :			IF over X @ generate-label-name $out
3339 :			ELSE over X @ s" 0x0" $out .ux
3340 :			THEN
3341 :			tcell /string
3342 :			LOOP ;
3343 :
3344 :			: print-bytes ( taddr len n -- taddr' len' )
3345 :			over min dup 0>
3346 :			IF nlout s" .byte " $out 0
3347 :			?DO I 0> IF s" , " $out THEN
3348 :			over X c@ s" 0x0" $out .ux 1 /string
3349 :			LOOP
3350 :			THEN ;
3351 :
3352 :			: save-asm-region-part ( addr len -- )
3353 :			over dup X aligned swap - ?dup
3354 :			IF print-bytes THEN
3355 :			save-asm-region-part-aligned
3356 :			dup dup X aligned swap - ?dup
3357 :			IF 2 pick @relbit ABORT" relocated field splitted"
3358 :			print-bytes
3359 :			THEN
3360 :			2drop ;
3361 :
3362 :			: print-label ( taddr -- )
3363 :			nlout generate-label-name $out s" :" $out ;
3364 :
3365 :			: snl-calc ( taddr taddr2 -- )
3366 :			tuck over - ;
3367 :
3368 :			: skip-nolables ( taddr -- taddr2 taddr len )
3369 :			\G skips memory region where no lables are defined
3370 :			\G starting from taddr+1
3371 :			\G Labels will be introduced for each reference mark
3372 :			\G in addr-refs.
3373 :			\G This word deals with lables at byte addresses as well.
3374 :			\G The main idea is to have an intro part which
3375 :			\G skips until the next cell boundary, the middle part
3376 :			\G which skips whole cells very efficiently and the third
3377 :			\G part which skips the bytes to the label in a cell
3378 :			dup 1+ dup (>regiontype)
3379 :			( S taddr taddr-realstart type-addr )
3380 :			dup @ dup IF addr-refs @ THEN
3381 :			swap >r
3382 :			over align+ tuck tcell swap - rshift swap 0
3383 :	jwilke	1.126	?DO dup 1 and
3384 :	jwilke	1.103	IF drop rdrop snl-calc UNLOOP EXIT THEN
3385 :			2/ swap 1+ swap
3386 :			LOOP
3387 :			drop r> cell+
3388 :			( S .. taddr2 type-addr ) dup
3389 :			BEGIN dup @ dup IF addr-refs @ THEN 0= WHILE cell+ REPEAT
3390 :			dup >r swap - 1 cells / tcell * + r>
3391 :			( S .. taddr2+skiplencells type-addr )
3392 :			@ addr-refs @ 1 tcell lshift or
3393 :			BEGIN dup 1 and 0= WHILE swap 1+ swap 2/ REPEAT drop
3394 :			( S .. taddr2+skiplencells+skiplenbytes )
3395 :			snl-calc ;
3396 :
3397 :			: insert-label ( taddr -- )
3398 :			dup 0= IF drop EXIT THEN
3399 :			\ ignore everything which points outside our memory regions
3400 :			\ maybe a primitive pointer or whatever
3401 :			dup taddr>region 0= IF drop EXIT THEN
3402 :			dup >r (>regiontype) define-addr-struct addr-refs dup @
3403 :			r> tcell 1- and 1 swap lshift or swap ! ;
3404 :
3405 :			\ this generates a sorted list of addresses which must be labels
3406 :			\ it scans therefore a whole region
3407 :			: generate-label-list-region ( taddr len -- )
3408 :			BEGIN over @relbit IF over X @ insert-label THEN
3409 :			tcell /string dup 0<
3410 :			UNTIL 2drop ;
3411 :
3412 :			: generate-label-list ( -- )
3413 :			region-link
3414 :			BEGIN @ dup WHILE
3415 :			dup 0 >rlink - extent
3416 :			?dup IF generate-label-list-region ELSE drop THEN
3417 :			REPEAT drop ;
3418 :
3419 :			: create-outfile ( addr len -- )
3420 :			w/o bin create-file throw outfile-fd ! ;
3421 :
3422 :			: close-outfile ( -- )
3423 :			outfile-fd @ close-file throw ;
3424 :
3425 :			: (save-asm-region) ( region -- )
3426 :			\ ." label list..."
3427 :			generate-label-list
3428 :			\ ." ok!" cr
3429 :			extent ( S taddr len )
3430 :			over insert-label
3431 :			2dup + dup insert-label >r ( R end-label )
3432 :			( S taddr len ) drop
3433 :			BEGIN
3434 :			dup print-label
3435 :			dup r@ <> WHILE
3436 :			skip-nolables save-asm-region-part
3437 :			REPEAT drop rdrop ;
3438 :
3439 :			: lineout ( addr len -- )
3440 :			outfile-fd @ write-line throw ;
3441 :
3442 :			: save-asm-region ( region adr len -- )
3443 :			create-outfile (save-asm-region) close-outfile ;
3444 :
3445 :	pazsan	1.54	\ \ minimal definitions
3446 :
3447 :	jwilke	1.77	>MINIMAL also minimal
3448 :
3449 :	anton	1.1	\ Usefull words 13feb93py
3450 :
3451 :			: KB 400 * ;
3452 :
3453 :	pazsan	1.54	\ \ [IF] [ELSE] [THEN] ... 14sep97jaw
3454 :
3455 :			\ it is useful to define our own structures and not to rely
3456 :	jwilke	1.109	\ on the words in the host system
3457 :			\ The words in the host system might be defined with vocabularies
3458 :	pazsan	1.54	\ this doesn't work with our self-made compile-loop
3459 :
3460 :			Create parsed 20 chars allot \ store word we parsed
3461 :
3462 :			: upcase
3463 :			parsed count bounds
3464 :			?DO I c@ toupper I c! LOOP ;
3465 :
3466 :			: [ELSE]
3467 :			1 BEGIN
3468 :			BEGIN bl word count dup WHILE
3469 :	jwilke	1.77	comment? 20 umin parsed place upcase parsed count
3470 :	anton	1.128	2dup s" [IF]" str= >r
3471 :			2dup s" [IFUNDEF]" str= >r
3472 :			2dup s" [IFDEF]" str= r> or r> or
3473 :	pazsan	1.54	IF 2drop 1+
3474 :	anton	1.128	ELSE 2dup s" [ELSE]" str=
3475 :	pazsan	1.54	IF 2drop 1- dup
3476 :			IF 1+
3477 :			THEN
3478 :			ELSE
3479 :	anton	1.128	2dup s" [ENDIF]" str= >r
3480 :			s" [THEN]" str= r> or
3481 :	pazsan	1.54	IF 1- THEN
3482 :			THEN
3483 :			THEN
3484 :			?dup 0= ?EXIT
3485 :			REPEAT
3486 :			2drop refill 0=
3487 :			UNTIL drop ; immediate
3488 :
3489 :			: [THEN] ( -- ) ; immediate
3490 :
3491 :			: [ENDIF] ( -- ) ; immediate
3492 :
3493 :			: [IF] ( flag -- )
3494 :			0= IF postpone [ELSE] THEN ; immediate
3495 :
3496 :			Cond: [IF] postpone [IF] ;Cond
3497 :			Cond: [THEN] postpone [THEN] ;Cond
3498 :			Cond: [ELSE] postpone [ELSE] ;Cond
3499 :
3500 :	anton	1.1	\ define new [IFDEF] and [IFUNDEF] 20may93jaw
3501 :
3502 :	jwilke	1.77	: defined? tdefined? ;
3503 :	pazsan	1.44	: needed? needed? ;
3504 :			: doer? doer? ;
3505 :	anton	1.1
3506 :	jwilke	1.52	\ we want to use IFDEF on compiler directives (e.g. E?) in the source, too
3507 :
3508 :			: directive?
3509 :	jwilke	1.77	bl word count [ ' target >wordlist ] literal search-wordlist
3510 :	jwilke	1.52	dup IF nip THEN ;
3511 :
3512 :			: [IFDEF] >in @ directive? swap >in !
3513 :	jwilke	1.77	0= IF tdefined? ELSE name 2drop true THEN
3514 :	jwilke	1.52	postpone [IF] ;
3515 :
3516 :	jwilke	1.77	: [IFUNDEF] tdefined? 0= postpone [IF] ;
3517 :	anton	1.1
3518 :	pazsan	1.54	Cond: [IFDEF] postpone [IFDEF] ;Cond
3519 :
3520 :			Cond: [IFUNDEF] postpone [IFUNDEF] ;Cond
3521 :
3522 :	anton	1.1	\ C: \- \+ Conditional Compiling 09jun93jaw
3523 :
3524 :	jwilke	1.77	: C: >in @ tdefined? 0=
3525 :			IF >in ! X :
3526 :	anton	1.1	ELSE drop
3527 :			BEGIN bl word dup c@
3528 :	anton	1.128	IF count comment? s" ;" str= ?EXIT
3529 :	anton	1.1	ELSE refill 0= ABORT" CROSS: Out of Input while C:"
3530 :			THEN
3531 :			AGAIN
3532 :			THEN ;
3533 :
3534 :	jwilke	1.74	: d? d? ;
3535 :
3536 :	jwilke	1.123	: \D ( -- "debugswitch" )
3537 :	jwilke	1.74	\G doesn't skip line when debug switch is on
3538 :	jwilke	1.123	D? 0= IF postpone \ THEN ;
3539 :	jwilke	1.52
3540 :	jwilke	1.123	: \- ( -- "wordname" )
3541 :	anton	1.48	\G interprets the line if word is not defined
3542 :	jwilke	1.123	tdefined? IF postpone \ THEN ;
3543 :	anton	1.48
3544 :	jwilke	1.123	: \+ ( -- "wordname" )
3545 :	anton	1.48	\G interprets the line if word is defined
3546 :	jwilke	1.123	tdefined? 0= IF postpone \ THEN ;
3547 :
3548 :			: \? ( -- "envorinstring" )
3549 :			\G Skip line if environmental variable evaluates to false
3550 :			X has? 0= IF postpone \ THEN ;
3551 :	anton	1.1
3552 :	anton	1.48	Cond: \- \- ;Cond
3553 :			Cond: \+ \+ ;Cond
3554 :	jwilke	1.52	Cond: \D \D ;Cond
3555 :	jwilke	1.123	Cond: \? \? ;Cond
3556 :	anton	1.48
3557 :			: ?? bl word find IF execute ELSE drop 0 THEN ;
3558 :
3559 :			: needed:
3560 :			\G defines ghost for words that we want to be compiled
3561 :	jwilke	1.103	BEGIN >in @ bl word c@ WHILE >in ! Ghost drop REPEAT drop ;
3562 :	anton	1.48
3563 :	anton	1.1	\ words that should be in minimal
3564 :	jwilke	1.52
3565 :			create s-buffer 50 chars allot
3566 :
3567 :	jwilke	1.77	bigendian Constant bigendian
3568 :	anton	1.1
3569 :	jwilke	1.52	: here there ;
3570 :	jwilke	1.67	: equ constant ;
3571 :			: mark there constant ;
3572 :	pazsan	1.54
3573 :			\ compiler directives
3574 :	jwilke	1.52	: >ram >ram ;
3575 :			: >rom >rom ;
3576 :			: >auto >auto ;
3577 :			: >tempdp >tempdp ;
3578 :			: tempdp> tempdp> ;
3579 :			: const constflag on ;
3580 :	jwilke	1.103
3581 :			: Redefinitions-start
3582 :			\G Starts a redefinition section. Warnings are disabled and
3583 :			\G existing ghosts are reused. This is used in the kernel
3584 :			\G where ( and \ and the like are redefined
3585 :			twarnings off warnings off reuse-ghosts on ;
3586 :
3587 :			: Redefinitions-end
3588 :			\G Ends a redefinition section. Warnings are enabled again.
3589 :			twarnings on warnings on reuse-ghosts off ;
3590 :
3591 :			: warnings name 3 =
3592 :			IF twarnings off warnings off ELSE twarnings on warnings on THEN drop ;
3593 :	jwilke	1.102
3594 :	anton	1.60	: \| ;
3595 :			\ : \| NoHeaderFlag on ; \ This is broken (damages the last word)
3596 :	jwilke	1.52
3597 :	anton	1.48	: save-cross save-cross ;
3598 :	jwilke	1.52	: save-region save-region ;
3599 :			: tdump swap >image swap dump ;
3600 :
3601 :	anton	1.48	also forth
3602 :	jwilke	1.52	[IFDEF] Label : Label defempty? Label ; [THEN]
3603 :			[IFDEF] start-macros : start-macros defempty? start-macros ; [THEN]
3604 :	jwilke	1.77	\ [IFDEF] builttag : builttag builttag ; [THEN]
3605 :	anton	1.48	previous
3606 :
3607 :	jwilke	1.52	: s" [char] " parse s-buffer place s-buffer count ; \ for environment?
3608 :	pazsan	1.43	: + + ;
3609 :	jwilke	1.52	: 1+ 1 + ;
3610 :			: 2+ 2 + ;
3611 :	pazsan	1.43	: 1- 1- ;
3612 :			: - - ;
3613 :	jwilke	1.52	: and and ;
3614 :			: or or ;
3615 :	pazsan	1.43	: 2* 2* ;
3616 :			: * * ;
3617 :			: / / ;
3618 :			: dup dup ;
3619 :			: over over ;
3620 :			: swap swap ;
3621 :			: rot rot ;
3622 :			: drop drop ;
3623 :			: = = ;
3624 :	jwilke	1.122	: <> <> ;
3625 :	pazsan	1.43	: 0= 0= ;
3626 :			: lshift lshift ;
3627 :			: 2/ 2/ ;
3628 :	jwilke	1.103	\ : . . ;
3629 :	anton	1.1
3630 :	jwilke	1.79	: all-words ['] forced? IS skip? ;
3631 :	pazsan	1.43	: needed-words ['] needed? IS skip? ;
3632 :	jwilke	1.75	: undef-words ['] defined2? IS skip? ;
3633 :			: skipdef skipdef ;
3634 :	anton	1.1
3635 :	pazsan	1.40	: \ postpone \ ; immediate
3636 :	pazsan	1.47	: \G T-\G ; immediate
3637 :	pazsan	1.40	: ( postpone ( ; immediate
3638 :	anton	1.1	: include bl word count included ;
3639 :	jwilke	1.103	: included swap >image swap included ;
3640 :	jwilke	1.52	: require require ;
3641 :	jwilke	1.103	: needs require ;
3642 :	anton	1.1	: .( [char] ) parse type ;
3643 :	jwilke	1.52	: ." [char] " parse type ;
3644 :	anton	1.1	: cr cr ;
3645 :
3646 :	jwilke	1.77	: times 0 ?DO dup X c, LOOP drop ; \ used for space table creation
3647 :
3648 :			\ only forth also cross also minimal definitions order
3649 :	anton	1.1
3650 :			\ cross-compiler words
3651 :
3652 :	jwilke	1.103	: decimal decimal [g'] decimal >exec2 @ ?dup IF EXECUTE THEN ;
3653 :			: hex hex [g'] hex >exec2 @ ?dup IF EXECUTE THEN ;
3654 :	anton	1.1
3655 :	jwilke	1.77	\ : tudp X tudp ;
3656 :			\ : tup X tup ;
3657 :
3658 :			: doc-off false to-doc ! ;
3659 :			: doc-on true to-doc ! ;
3660 :	pazsan	1.39
3661 :	jwilke	1.103	: declareunique ( "name" -- )
3662 :	anton	1.127	\ Sets the unique flag for a ghost. The assembler output
3663 :			\ generates labels with the ghostname concatenated with the address
3664 :			\ while cross-compiling. The address is concatenated
3665 :			\ because we have double occurences of the same name.
3666 :			\ If we want to reference the labels from the assembler or C
3667 :			\ code we declare them unique, so the address is skipped.
3668 :	jwilke	1.103	Ghost >ghost-flags dup @ <unique> or swap ! ;
3669 :
3670 :			\ [IFDEF] dbg : dbg dbg ; [THEN]
3671 :	pazsan	1.39
3672 :	anton	1.1	\ for debugging...
3673 :	jwilke	1.103	\ : dbg dbg ;
3674 :			: horder order ;
3675 :			: hwords words ;
3676 :			\ : words also ghosts
3677 :			\ words previous ;
3678 :	jwilke	1.105	: .s .s ;
3679 :	jwilke	1.122	: depth depth ;
3680 :	anton	1.1	: bye bye ;
3681 :	pazsan	1.99
3682 :	jwilke	1.103	\ dummy
3683 :
3684 :	anton	1.1	\ turnkey direction
3685 :			: H forth ; immediate
3686 :			: T minimal ; immediate
3687 :			: G ghosts ; immediate
3688 :
3689 :
3690 :			\ these ones are pefered:
3691 :
3692 :	jwilke	1.74	: unlock previous forth also cross ;
3693 :	jwilke	1.52
3694 :	jwilke	1.77	\ also minimal
3695 :	jwilke	1.103	>cross
3696 :
3697 :			: turnkey
3698 :			ghosts-wordlist 1 set-order
3699 :			also target definitions
3700 :			also Minimal also ;
3701 :
3702 :			>minimal
3703 :
3704 :			: [[+++
3705 :			turnkey unlock ;
3706 :	anton	1.1
3707 :			unlock definitions also minimal
3708 :	jwilke	1.77
3709 :	jwilke	1.103	: lock turnkey ;
3710 :
3711 :			Defer +++]]-hook
3712 :			: +++]] +++]]-hook lock ;
3713 :
3714 :			LOCK
3715 :	jwilke	1.77	\ load cross compiler extension defined in mach file
3716 :
3717 :			UNLOCK >CROSS
3718 :
3719 :			[IFDEF] extend-cross extend-cross [THEN]
3720 :
3721 :			LOCK

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gforth: gforth/cross.fs

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