[gforth] / gforth / prim

gforth: gforth/prim

1 :	anton	1.1	\ Gforth primitives
2 :
3 :	anton	1.126	\ Copyright (C) 1995,1996,1997,1998,2000,2003 Free Software Foundation, Inc.
4 :	anton	1.1
5 :			\ This file is part of Gforth.
6 :
7 :			\ Gforth is free software; you can redistribute it and/or
8 :			\ modify it under the terms of the GNU General Public License
9 :			\ as published by the Free Software Foundation; either version 2
10 :			\ of the License, or (at your option) any later version.
11 :
12 :			\ This program is distributed in the hope that it will be useful,
13 :			\ but WITHOUT ANY WARRANTY; without even the implied warranty of
14 :			\ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 :			\ GNU General Public License for more details.
16 :
17 :			\ You should have received a copy of the GNU General Public License
18 :			\ along with this program; if not, write to the Free Software
19 :	anton	1.63	\ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
20 :	anton	1.1
21 :
22 :			\ WARNING: This file is processed by m4. Make sure your identifiers
23 :			\ don't collide with m4's (e.g. by undefining them).
24 :			\
25 :			\
26 :			\
27 :			\ This file contains primitive specifications in the following format:
28 :			\
29 :	anton	1.47	\ forth name ( stack effect ) category [pronunciation]
30 :	anton	1.1	\ [""glossary entry""]
31 :			\ C code
32 :			\ [:
33 :			\ Forth code]
34 :			\
35 :	anton	1.47	\ Note: Fields in brackets are optional. Word specifications have to
36 :			\ be separated by at least one empty line
37 :	anton	1.1	\
38 :			\ Both pronounciation and stack items (in the stack effect) must
39 :	anton	1.48	\ conform to the C identifier syntax or the C compiler will complain.
40 :			\ If you don't have a pronounciation field, the Forth name is used,
41 :			\ and has to conform to the C identifier syntax.
42 :	anton	1.1	\
43 :			\ These specifications are automatically translated into C-code for the
44 :			\ interpreter and into some other files. I hope that your C compiler has
45 :			\ decent optimization, otherwise the automatically generated code will
46 :			\ be somewhat slow. The Forth version of the code is included for manual
47 :			\ compilers, so they will need to compile only the important words.
48 :			\
49 :			\ Note that stack pointer adjustment is performed according to stack
50 :			\ effect by automatically generated code and NEXT is automatically
51 :			\ appended to the C code. Also, you can use the names in the stack
52 :			\ effect in the C code. Stack access is automatic. One exception: if
53 :			\ your code does not fall through, the results are not stored into the
54 :			\ stack. Use different names on both sides of the '--', if you change a
55 :			\ value (some stores to the stack are optimized away).
56 :	anton	1.93	\
57 :			\ For superinstructions the syntax is:
58 :			\
59 :			\ forth-name [/ c-name] = forth-name forth-name ...
60 :			\
61 :	anton	1.1	\
62 :			\ The stack variables have the following types:
63 :			\
64 :			\ name matches type
65 :			\ f.* Bool
66 :			\ c.* Char
67 :	anton	1.93	\ [nw].* Cell
68 :	anton	1.1	\ u.* UCell
69 :			\ d.* DCell
70 :			\ ud.* UDCell
71 :			\ r.* Float
72 :			\ a_.* Cell *
73 :			\ c_.* Char *
74 :			\ f_.* Float *
75 :			\ df_.* DFloat *
76 :			\ sf_.* SFloat *
77 :			\ xt.* XT
78 :			\ f83name.* F83Name *
79 :	anton	1.67
80 :	anton	1.79	\E stack data-stack sp Cell
81 :			\E stack fp-stack fp Float
82 :			\E stack return-stack rp Cell
83 :			\E
84 :	anton	1.67	\E get-current prefixes set-current
85 :			\E
86 :			\E s" Bool" single data-stack type-prefix f
87 :			\E s" Char" single data-stack type-prefix c
88 :			\E s" Cell" single data-stack type-prefix n
89 :			\E s" Cell" single data-stack type-prefix w
90 :			\E s" UCell" single data-stack type-prefix u
91 :			\E s" DCell" double data-stack type-prefix d
92 :			\E s" UDCell" double data-stack type-prefix ud
93 :			\E s" Float" single fp-stack type-prefix r
94 :			\E s" Cell *" single data-stack type-prefix a_
95 :			\E s" Char *" single data-stack type-prefix c_
96 :			\E s" Float *" single data-stack type-prefix f_
97 :			\E s" DFloat *" single data-stack type-prefix df_
98 :			\E s" SFloat *" single data-stack type-prefix sf_
99 :			\E s" Xt" single data-stack type-prefix xt
100 :			\E s" struct F83Name *" single data-stack type-prefix f83name
101 :	anton	1.71	\E s" struct Longname *" single data-stack type-prefix longname
102 :	anton	1.67	\E
103 :			\E return-stack stack-prefix R:
104 :			\E inst-stream stack-prefix #
105 :			\E
106 :			\E set-current
107 :	anton	1.97	\E store-optimization on
108 :	anton	1.109	\E ' noop tail-nextp2 ! \ now INST_TAIL just stores, but does not jump
109 :	anton	1.128	\E
110 :			\E include-skipped-insts on \ static superinsts include cells for components
111 :			\E \ useful for dynamic programming and
112 :			\E \ superinsts across entry points
113 :	anton	1.67
114 :	anton	1.1	\
115 :			\
116 :			\
117 :			\ In addition the following names can be used:
118 :			\ ip the instruction pointer
119 :			\ sp the data stack pointer
120 :			\ rp the parameter stack pointer
121 :			\ lp the locals stack pointer
122 :			\ NEXT executes NEXT
123 :			\ cfa
124 :			\ NEXT1 executes NEXT1
125 :			\ FLAG(x) makes a Forth flag from a C flag
126 :			\
127 :			\
128 :			\
129 :			\ Percentages in comments are from Koopmans book: average/maximum use
130 :			\ (taken from four, not very representative benchmarks)
131 :			\
132 :			\
133 :			\
134 :			\ To do:
135 :			\
136 :			\ throw execute, cfa and NEXT1 out?
137 :			\ macroize ip, ip++, ip++ (pipelining)?
138 :
139 :			\ these m4 macros would collide with identifiers
140 :			undefine(`index')
141 :			undefine(`shift')
142 :	pazsan	1.78	undefine(`symbols')
143 :	anton	1.1
144 :	anton	1.140	\F 0 [if]
145 :
146 :	anton	1.139	\ run-time routines for non-primitives. They are defined as
147 :			\ primitives, because that simplifies things.
148 :
149 :			(docol) ( -- R:a_retaddr ) gforth-internal paren_docol
150 :			""run-time routine for colon definitions""
151 :	anton	1.141	a_retaddr = (Cell *)IP;
152 :	anton	1.139	SET_IP((Xt *)PFA(CFA));
153 :
154 :			(docon) ( -- w ) gforth-internal paren_docon
155 :			""run-time routine for constants""
156 :			w = (Cell )PFA(CFA);
157 :
158 :			(dovar) ( -- a_body ) gforth-internal paren_dovar
159 :			""run-time routine for variables and CREATEd words""
160 :			a_body = PFA(CFA);
161 :
162 :			(douser) ( -- a_user ) gforth-internal paren_douser
163 :			""run-time routine for constants""
164 :			a_user = (Cell )(up+(Cell *)PFA(CFA));
165 :
166 :			(dodefer) ( -- ) gforth-internal paren_dodefer
167 :			""run-time routine for deferred words""
168 :	anton	1.141	ip=IP; /* undo any ip updating that may have been performed by NEXT_P0 */
169 :			SUPER_END; /* !! probably unnecessary and may lead to measurement errors */
170 :	anton	1.139	EXEC((Xt )PFA(CFA));
171 :
172 :			(dofield) ( n1 -- n2 ) gforth-internal paren_field
173 :			""run-time routine for fields""
174 :			n2 = n1 + (Cell )PFA(CFA);
175 :
176 :			(dodoes) ( -- a_body R:a_retaddr ) gforth-internal paren_dodoes
177 :			""run-time routine for @code{does>}-defined words""
178 :	anton	1.141	a_retaddr = (Cell *)IP;
179 :	anton	1.139	a_body = PFA(CFA);
180 :			SET_IP(DOES_CODE1(CFA));
181 :
182 :			(does-handler) ( -- ) gforth-internal paren_does_handler
183 :			""just a slot to have an encoding for the DOESJUMP,
184 :			which is no longer used anyway (!! eliminate this)""
185 :	anton	1.140
186 :			\F [endif]
187 :	anton	1.139
188 :	pazsan	1.83	\g control
189 :
190 :	anton	1.47	noop ( -- ) gforth
191 :	anton	1.1	:
192 :			;
193 :
194 :	pazsan	1.112	call ( #a_callee -- R:a_retaddr ) new
195 :			""Call callee (a variant of docol with inline argument).""
196 :			#ifdef NO_IP
197 :			INST_TAIL;
198 :			JUMP(a_callee);
199 :			#else
200 :			#ifdef DEBUG
201 :			{
202 :			CFA_TO_NAME((((Cell *)a_callee)-2));
203 :			fprintf(stderr,"%08lx: call %08lx %.*s\n",(Cell)ip,(Cell)a_callee,
204 :			len,name);
205 :			}
206 :			#endif
207 :			a_retaddr = (Cell *)IP;
208 :			SET_IP((Xt *)a_callee);
209 :			#endif
210 :	anton	1.1
211 :	anton	1.47	execute ( xt -- ) core
212 :	crook	1.29	""Perform the semantics represented by the execution token, @i{xt}.""
213 :	anton	1.102	#ifndef NO_IP
214 :	anton	1.1	ip=IP;
215 :	anton	1.102	#endif
216 :	anton	1.64	IF_spTOS(spTOS = sp[0]);
217 :	anton	1.76	SUPER_END;
218 :	anton	1.1	EXEC(xt);
219 :
220 :	anton	1.47	perform ( a_addr -- ) gforth
221 :	anton	1.55	""@code{@@ execute}.""
222 :	anton	1.1	/* and pfe */
223 :	anton	1.102	#ifndef NO_IP
224 :	anton	1.1	ip=IP;
225 :	anton	1.102	#endif
226 :	anton	1.64	IF_spTOS(spTOS = sp[0]);
227 :	anton	1.76	SUPER_END;
228 :	anton	1.1	EXEC((Xt )a_addr);
229 :			:
230 :			@ execute ;
231 :
232 :	pazsan	1.112	;s ( R:w -- ) gforth semis
233 :			""The primitive compiled by @code{EXIT}.""
234 :			#ifdef NO_IP
235 :			INST_TAIL;
236 :			goto (void )w;
237 :			#else
238 :			SET_IP((Xt *)w);
239 :			#endif
240 :
241 :			unloop ( R:w1 R:w2 -- ) core
242 :			/* !! alias for 2rdrop */
243 :			:
244 :			r> rdrop rdrop >r ;
245 :
246 :			lit-perform ( #a_addr -- ) new lit_perform
247 :			#ifndef NO_IP
248 :			ip=IP;
249 :			#endif
250 :			SUPER_END;
251 :			EXEC((Xt )a_addr);
252 :
253 :			does-exec ( #a_cfa -- R:nest a_pfa ) new does_exec
254 :			#ifdef NO_IP
255 :			/* compiled to LIT CALL by compile_prim */
256 :			assert(0);
257 :			#else
258 :			a_pfa = PFA(a_cfa);
259 :			nest = (Cell)IP;
260 :			IF_spTOS(spTOS = sp[0]);
261 :			#ifdef DEBUG
262 :			{
263 :			CFA_TO_NAME(a_cfa);
264 :			fprintf(stderr,"%08lx: does %08lx %.*s\n",
265 :			(Cell)ip,(Cell)a_cfa,len,name);
266 :			}
267 :			#endif
268 :			SET_IP(DOES_CODE1(a_cfa));
269 :			#endif
270 :
271 :	pazsan	1.15	\+glocals
272 :	anton	1.1
273 :	pazsan	1.112	branch-lp+!# ( #a_target #nlocals -- ) gforth branch_lp_plus_store_number
274 :	anton	1.1	/* this will probably not be used */
275 :	anton	1.68	lp += nlocals;
276 :	pazsan	1.112	#ifdef NO_IP
277 :			INST_TAIL;
278 :			JUMP(a_target);
279 :			#else
280 :			SET_IP((Xt *)a_target);
281 :			#endif
282 :	anton	1.1
283 :	pazsan	1.15	\+
284 :	anton	1.1
285 :	pazsan	1.112	branch ( #a_target -- ) gforth
286 :			#ifdef NO_IP
287 :			INST_TAIL;
288 :			JUMP(a_target);
289 :			#else
290 :			SET_IP((Xt *)a_target);
291 :			#endif
292 :	anton	1.1	:
293 :	pazsan	1.112	r> @ >r ;
294 :	anton	1.1
295 :	pazsan	1.112	\ condbranch(forthname,stackeffect,restline,code1,code2,forthcode)
296 :	anton	1.1	\ this is non-syntactical: code must open a brace that is closed by the macro
297 :			define(condbranch,
298 :	pazsan	1.112	$1 ( `#'a_target $2 ) $3
299 :			$4 #ifdef NO_IP
300 :	anton	1.96	INST_TAIL;
301 :	pazsan	1.112	#endif
302 :			$5 #ifdef NO_IP
303 :			JUMP(a_target);
304 :			#else
305 :			SET_IP((Xt *)a_target);
306 :			INST_TAIL; NEXT_P2;
307 :			#endif
308 :	anton	1.1	}
309 :	anton	1.87	SUPER_CONTINUE;
310 :	pazsan	1.112	$6
311 :	anton	1.1
312 :	pazsan	1.15	\+glocals
313 :	anton	1.1
314 :	pazsan	1.112	$1-lp+!`#' ( `#'a_target `#'nlocals $2 ) $3_lp_plus_store_number
315 :			$4 #ifdef NO_IP
316 :	anton	1.96	INST_TAIL;
317 :	pazsan	1.112	#endif
318 :			$5 lp += nlocals;
319 :			#ifdef NO_IP
320 :			JUMP(a_target);
321 :			#else
322 :			SET_IP((Xt *)a_target);
323 :			INST_TAIL; NEXT_P2;
324 :			#endif
325 :	anton	1.1	}
326 :	anton	1.87	SUPER_CONTINUE;
327 :	anton	1.1
328 :	pazsan	1.15	\+
329 :	anton	1.1	)
330 :
331 :	anton	1.68	condbranch(?branch,f --,f83 question_branch,
332 :	pazsan	1.112	,if (f==0) {
333 :	jwilke	1.5	,:
334 :	pazsan	1.112	0= dup 0= \ !f f
335 :			r> tuck cell+ \ !f branchoffset f IP+
336 :			and -rot @ and or \ f&IP+\|!f&branch
337 :	jwilke	1.5	>r ;)
338 :	anton	1.1
339 :			\ we don't need an lp_plus_store version of the ?dup-stuff, because it
340 :			\ is only used in if's (yet)
341 :
342 :	pazsan	1.15	\+xconds
343 :	anton	1.1
344 :	pazsan	1.112	?dup-?branch ( #a_target f -- f ) new question_dupe_question_branch
345 :	anton	1.1	""The run-time procedure compiled by @code{?DUP-IF}.""
346 :			if (f==0) {
347 :			sp++;
348 :	anton	1.64	IF_spTOS(spTOS = sp[0]);
349 :	pazsan	1.112	#ifdef NO_IP
350 :			INST_TAIL;
351 :			JUMP(a_target);
352 :			#else
353 :			SET_IP((Xt *)a_target);
354 :			INST_TAIL; NEXT_P2;
355 :			#endif
356 :	anton	1.1	}
357 :	anton	1.87	SUPER_CONTINUE;
358 :	anton	1.1
359 :	pazsan	1.112	?dup-0=-?branch ( #a_target f -- ) new question_dupe_zero_equals_question_branch
360 :	anton	1.1	""The run-time procedure compiled by @code{?DUP-0=-IF}.""
361 :			/* the approach taken here of declaring the word as having the stack
362 :			effect ( f -- ) and correcting for it in the branch-taken case costs a
363 :			few cycles in that case, but is easy to convert to a CONDBRANCH
364 :			invocation */
365 :			if (f!=0) {
366 :			sp--;
367 :	pazsan	1.112	#ifdef NO_IP
368 :			JUMP(a_target);
369 :			#else
370 :			SET_IP((Xt *)a_target);
371 :	anton	1.1	NEXT;
372 :	pazsan	1.112	#endif
373 :	anton	1.1	}
374 :	anton	1.87	SUPER_CONTINUE;
375 :	anton	1.1
376 :	pazsan	1.15	\+
377 :	jwilke	1.31	\fhas? skiploopprims 0= [IF]
378 :	anton	1.1
379 :	anton	1.68	condbranch((next),R:n1 -- R:n2,cmFORTH paren_next,
380 :	anton	1.65	n2=n1-1;
381 :	pazsan	1.112	,if (n1) {
382 :	anton	1.1	,:
383 :			r> r> dup 1- >r
384 :	pazsan	1.112	IF @ >r ELSE cell+ >r THEN ;)
385 :	anton	1.1
386 :	anton	1.68	condbranch((loop),R:nlimit R:n1 -- R:nlimit R:n2,gforth paren_loop,
387 :	anton	1.65	n2=n1+1;
388 :	pazsan	1.112	,if (n2 != nlimit) {
389 :	anton	1.1	,:
390 :			r> r> 1+ r> 2dup =
391 :			IF >r 1- >r cell+ >r
392 :	pazsan	1.112	ELSE >r >r @ >r THEN ;)
393 :	anton	1.1
394 :	anton	1.68	condbranch((+loop),n R:nlimit R:n1 -- R:nlimit R:n2,gforth paren_plus_loop,
395 :	anton	1.1	/* !! check this thoroughly */
396 :			/* sign bit manipulation and test: (x^y)<0 is equivalent to (x<0) != (y<0) */
397 :			/* dependent upon two's complement arithmetic */
398 :	anton	1.65	Cell olddiff = n1-nlimit;
399 :			n2=n1+n;
400 :	pazsan	1.112	,if ((olddiff^(olddiff+n))>=0 /* the limit is not crossed */
401 :	anton	1.1	\|\| (olddiff^n)>=0 /* it is a wrap-around effect */) {
402 :			,:
403 :			r> swap
404 :			r> r> 2dup - >r
405 :			2 pick r@ + r@ xor 0< 0=
406 :			3 pick r> xor 0< 0= or
407 :	pazsan	1.112	IF >r + >r @ >r
408 :	anton	1.1	ELSE >r >r drop cell+ >r THEN ;)
409 :
410 :	pazsan	1.15	\+xconds
411 :	anton	1.1
412 :	anton	1.68	condbranch((-loop),u R:nlimit R:n1 -- R:nlimit R:n2,gforth paren_minus_loop,
413 :	anton	1.65	UCell olddiff = n1-nlimit;
414 :			n2=n1-u;
415 :	pazsan	1.112	,if (olddiff>u) {
416 :	anton	1.1	,)
417 :
418 :	anton	1.68	condbranch((s+loop),n R:nlimit R:n1 -- R:nlimit R:n2,gforth paren_symmetric_plus_loop,
419 :	anton	1.1	""The run-time procedure compiled by S+LOOP. It loops until the index
420 :			crosses the boundary between limit and limit-sign(n). I.e. a symmetric
421 :			version of (+LOOP).""
422 :			/* !! check this thoroughly */
423 :	anton	1.65	Cell diff = n1-nlimit;
424 :	anton	1.1	Cell newdiff = diff+n;
425 :			if (n<0) {
426 :			diff = -diff;
427 :			newdiff = -newdiff;
428 :			}
429 :	anton	1.65	n2=n1+n;
430 :	pazsan	1.112	,if (diff>=0 \|\| newdiff<0) {
431 :	anton	1.1	,)
432 :
433 :	pazsan	1.15	\+
434 :	anton	1.1
435 :	pazsan	1.112	(for) ( ncount -- R:nlimit R:ncount ) cmFORTH paren_for
436 :	anton	1.1	/* or (for) = >r -- collides with unloop! */
437 :	anton	1.65	nlimit=0;
438 :	anton	1.1	:
439 :			r> swap 0 >r >r >r ;
440 :
441 :	pazsan	1.112	(do) ( nlimit nstart -- R:nlimit R:nstart ) gforth paren_do
442 :	anton	1.1	:
443 :			r> swap rot >r >r >r ;
444 :
445 :	pazsan	1.112	(?do) ( #a_target nlimit nstart -- R:nlimit R:nstart ) gforth paren_question_do
446 :			#ifdef NO_IP
447 :			INST_TAIL;
448 :			#endif
449 :	anton	1.1	if (nstart == nlimit) {
450 :	pazsan	1.112	#ifdef NO_IP
451 :			JUMP(a_target);
452 :			#else
453 :			SET_IP((Xt *)a_target);
454 :			INST_TAIL; NEXT_P2;
455 :			#endif
456 :	anton	1.1	}
457 :	anton	1.87	SUPER_CONTINUE;
458 :	anton	1.1	:
459 :			2dup =
460 :			IF r> swap rot >r >r
461 :	pazsan	1.112	@ >r
462 :	anton	1.1	ELSE r> swap rot >r >r
463 :			cell+ >r
464 :			THEN ; \ --> CORE-EXT
465 :
466 :	pazsan	1.15	\+xconds
467 :	anton	1.1
468 :	pazsan	1.112	(+do) ( #a_target nlimit nstart -- R:nlimit R:nstart ) gforth paren_plus_do
469 :			#ifdef NO_IP
470 :			INST_TAIL;
471 :			#endif
472 :	anton	1.1	if (nstart >= nlimit) {
473 :	pazsan	1.112	#ifdef NO_IP
474 :			JUMP(a_target);
475 :			#else
476 :			SET_IP((Xt *)a_target);
477 :			INST_TAIL; NEXT_P2;
478 :			#endif
479 :	anton	1.1	}
480 :	anton	1.87	SUPER_CONTINUE;
481 :	anton	1.1	:
482 :			swap 2dup
483 :			r> swap >r swap >r
484 :			>=
485 :			IF
486 :	pazsan	1.112	@
487 :	anton	1.1	ELSE
488 :			cell+
489 :			THEN >r ;
490 :
491 :	pazsan	1.112	(u+do) ( #a_target ulimit ustart -- R:ulimit R:ustart ) gforth paren_u_plus_do
492 :			#ifdef NO_IP
493 :			INST_TAIL;
494 :			#endif
495 :	anton	1.1	if (ustart >= ulimit) {
496 :	pazsan	1.112	#ifdef NO_IP
497 :			JUMP(a_target);
498 :			#else
499 :			SET_IP((Xt *)a_target);
500 :			INST_TAIL; NEXT_P2;
501 :			#endif
502 :	anton	1.1	}
503 :	anton	1.87	SUPER_CONTINUE;
504 :	anton	1.1	:
505 :			swap 2dup
506 :			r> swap >r swap >r
507 :			u>=
508 :			IF
509 :	pazsan	1.112	@
510 :	anton	1.1	ELSE
511 :			cell+
512 :			THEN >r ;
513 :
514 :	pazsan	1.112	(-do) ( #a_target nlimit nstart -- R:nlimit R:nstart ) gforth paren_minus_do
515 :			#ifdef NO_IP
516 :			INST_TAIL;
517 :			#endif
518 :	anton	1.1	if (nstart <= nlimit) {
519 :	pazsan	1.112	#ifdef NO_IP
520 :			JUMP(a_target);
521 :			#else
522 :			SET_IP((Xt *)a_target);
523 :			INST_TAIL; NEXT_P2;
524 :			#endif
525 :	anton	1.1	}
526 :	anton	1.87	SUPER_CONTINUE;
527 :	anton	1.1	:
528 :			swap 2dup
529 :			r> swap >r swap >r
530 :			<=
531 :			IF
532 :	pazsan	1.112	@
533 :	anton	1.1	ELSE
534 :			cell+
535 :			THEN >r ;
536 :
537 :	pazsan	1.112	(u-do) ( #a_target ulimit ustart -- R:ulimit R:ustart ) gforth paren_u_minus_do
538 :			#ifdef NO_IP
539 :			INST_TAIL;
540 :			#endif
541 :	anton	1.1	if (ustart <= ulimit) {
542 :	pazsan	1.112	#ifdef NO_IP
543 :			JUMP(a_target);
544 :			#else
545 :			SET_IP((Xt *)a_target);
546 :			INST_TAIL; NEXT_P2;
547 :			#endif
548 :	anton	1.1	}
549 :	anton	1.87	SUPER_CONTINUE;
550 :	anton	1.1	:
551 :			swap 2dup
552 :			r> swap >r swap >r
553 :			u<=
554 :			IF
555 :	pazsan	1.112	@
556 :	anton	1.1	ELSE
557 :			cell+
558 :			THEN >r ;
559 :
560 :	pazsan	1.15	\+
561 :	anton	1.1
562 :	jwilke	1.5	\ don't make any assumptions where the return stack is!!
563 :			\ implement this in machine code if it should run quickly!
564 :
565 :	anton	1.65	i ( R:n -- R:n n ) core
566 :	anton	1.1	:
567 :	jwilke	1.5	\ rp@ cell+ @ ;
568 :			r> r> tuck >r >r ;
569 :	anton	1.1
570 :	anton	1.65	i' ( R:w R:w2 -- R:w R:w2 w ) gforth i_tick
571 :	anton	1.1	:
572 :	jwilke	1.5	\ rp@ cell+ cell+ @ ;
573 :			r> r> r> dup itmp ! >r >r >r itmp @ ;
574 :			variable itmp
575 :	anton	1.1
576 :	anton	1.65	j ( R:n R:d1 -- n R:n R:d1 ) core
577 :	anton	1.1	:
578 :	jwilke	1.5	\ rp@ cell+ cell+ cell+ @ ;
579 :			r> r> r> r> dup itmp ! >r >r >r >r itmp @ ;
580 :			[IFUNDEF] itmp variable itmp [THEN]
581 :	anton	1.1
582 :	anton	1.65	k ( R:n R:d1 R:d2 -- n R:n R:d1 R:d2 ) gforth
583 :	anton	1.1	:
584 :	jwilke	1.5	\ rp@ [ 5 cells ] Literal + @ ;
585 :			r> r> r> r> r> r> dup itmp ! >r >r >r >r >r >r itmp @ ;
586 :			[IFUNDEF] itmp variable itmp [THEN]
587 :	jwilke	1.31
588 :			\f[THEN]
589 :	anton	1.1
590 :			\ digit is high-level: 0/0%
591 :
592 :	pazsan	1.83	\g strings
593 :
594 :	anton	1.47	move ( c_from c_to ucount -- ) core
595 :	anton	1.52	""Copy the contents of @i{ucount} aus at @i{c-from} to
596 :	anton	1.33	@i{c-to}. @code{move} works correctly even if the two areas overlap.""
597 :	anton	1.52	/* !! note that the standard specifies addr, not c-addr */
598 :	anton	1.1	memmove(c_to,c_from,ucount);
599 :			/* make an Ifdef for bsd and others? */
600 :			:
601 :			>r 2dup u< IF r> cmove> ELSE r> cmove THEN ;
602 :
603 :	anton	1.47	cmove ( c_from c_to u -- ) string c_move
604 :	anton	1.33	""Copy the contents of @i{ucount} characters from data space at
605 :			@i{c-from} to @i{c-to}. The copy proceeds @code{char}-by-@code{char}
606 :			from low address to high address; i.e., for overlapping areas it is
607 :			safe if @i{c-to}=<@i{c-from}.""
608 :	anton	1.125	cmove(c_from,c_to,u);
609 :	anton	1.1	:
610 :			bounds ?DO dup c@ I c! 1+ LOOP drop ;
611 :
612 :	anton	1.47	cmove> ( c_from c_to u -- ) string c_move_up
613 :	anton	1.33	""Copy the contents of @i{ucount} characters from data space at
614 :			@i{c-from} to @i{c-to}. The copy proceeds @code{char}-by-@code{char}
615 :			from high address to low address; i.e., for overlapping areas it is
616 :			safe if @i{c-to}>=@i{c-from}.""
617 :	anton	1.125	cmove_up(c_from,c_to,u);
618 :	anton	1.1	:
619 :			dup 0= IF drop 2drop exit THEN
620 :			rot over + -rot bounds swap 1-
621 :			DO 1- dup c@ I c! -1 +LOOP drop ;
622 :
623 :	anton	1.47	fill ( c_addr u c -- ) core
624 :	anton	1.52	""Store @i{c} in @i{u} chars starting at @i{c-addr}.""
625 :	anton	1.1	memset(c_addr,c,u);
626 :			:
627 :			-rot bounds
628 :			?DO dup I c! LOOP drop ;
629 :
630 :	anton	1.47	compare ( c_addr1 u1 c_addr2 u2 -- n ) string
631 :	crook	1.29	""Compare two strings lexicographically. If they are equal, @i{n} is 0; if
632 :			the first string is smaller, @i{n} is -1; if the first string is larger, @i{n}
633 :	anton	1.1	is 1. Currently this is based on the machine's character
634 :	crook	1.26	comparison. In the future, this may change to consider the current
635 :	anton	1.1	locale and its collation order.""
636 :	pazsan	1.46	/* close ' to keep fontify happy */
637 :	anton	1.125	n = compare(c_addr1, u1, c_addr2, u2);
638 :	anton	1.1	:
639 :	pazsan	1.43	rot 2dup swap - >r min swap -text dup
640 :			IF rdrop ELSE drop r> sgn THEN ;
641 :	pazsan	1.143	: -text ( c_addr1 u c_addr2 -- n )
642 :			swap bounds
643 :			?DO dup c@ I c@ = WHILE 1+ LOOP drop 0
644 :			ELSE c@ I c@ - unloop THEN sgn ;
645 :	pazsan	1.43	: sgn ( n -- -1/0/1 )
646 :			dup 0= IF EXIT THEN 0< 2* 1+ ;
647 :	anton	1.1
648 :	anton	1.125	\ -text is only used by replaced primitives now; move it elsewhere
649 :			\ -text ( c_addr1 u c_addr2 -- n ) new dash_text
650 :			\ n = memcmp(c_addr1, c_addr2, u);
651 :			\ if (n<0)
652 :			\ n = -1;
653 :			\ else if (n>0)
654 :			\ n = 1;
655 :			\ :
656 :			\ swap bounds
657 :			\ ?DO dup c@ I c@ = WHILE 1+ LOOP drop 0
658 :			\ ELSE c@ I c@ - unloop THEN sgn ;
659 :			\ : sgn ( n -- -1/0/1 )
660 :			\ dup 0= IF EXIT THEN 0< 2* 1+ ;
661 :	anton	1.1
662 :	anton	1.47	toupper ( c1 -- c2 ) gforth
663 :	crook	1.29	""If @i{c1} is a lower-case character (in the current locale), @i{c2}
664 :	anton	1.25	is the equivalent upper-case character. All other characters are unchanged.""
665 :	anton	1.1	c2 = toupper(c1);
666 :			:
667 :			dup [char] a - [ char z char a - 1 + ] Literal u< bl and - ;
668 :
669 :	anton	1.47	/string ( c_addr1 u1 n -- c_addr2 u2 ) string slash_string
670 :	crook	1.29	""Adjust the string specified by @i{c-addr1, u1} to remove @i{n}
671 :	crook	1.27	characters from the start of the string.""
672 :	anton	1.1	c_addr2 = c_addr1+n;
673 :			u2 = u1-n;
674 :			:
675 :			tuck - >r + r> dup 0< IF - 0 THEN ;
676 :
677 :	pazsan	1.83	\g arith
678 :
679 :	pazsan	1.112	lit ( #w -- w ) gforth
680 :			:
681 :			r> dup @ swap cell+ >r ;
682 :
683 :	anton	1.47	+ ( n1 n2 -- n ) core plus
684 :	anton	1.1	n = n1+n2;
685 :
686 :	pazsan	1.112	\ lit+ / lit_plus = lit +
687 :
688 :			lit+ ( n1 #n2 -- n ) new lit_plus
689 :			n=n1+n2;
690 :
691 :	anton	1.1	\ PFE-0.9.14 has it differently, but the next release will have it as follows
692 :	anton	1.47	under+ ( n1 n2 n3 -- n n2 ) gforth under_plus
693 :	crook	1.29	""add @i{n3} to @i{n1} (giving @i{n})""
694 :	anton	1.1	n = n1+n3;
695 :			:
696 :			rot + swap ;
697 :
698 :	anton	1.47	- ( n1 n2 -- n ) core minus
699 :	anton	1.1	n = n1-n2;
700 :			:
701 :			negate + ;
702 :
703 :	anton	1.47	negate ( n1 -- n2 ) core
704 :	anton	1.1	/* use minus as alias */
705 :			n2 = -n1;
706 :			:
707 :			invert 1+ ;
708 :
709 :	anton	1.47	1+ ( n1 -- n2 ) core one_plus
710 :	anton	1.1	n2 = n1+1;
711 :			:
712 :			1 + ;
713 :
714 :	anton	1.47	1- ( n1 -- n2 ) core one_minus
715 :	anton	1.1	n2 = n1-1;
716 :			:
717 :			1 - ;
718 :
719 :	anton	1.47	max ( n1 n2 -- n ) core
720 :	anton	1.1	if (n1<n2)
721 :			n = n2;
722 :			else
723 :			n = n1;
724 :			:
725 :			2dup < IF swap THEN drop ;
726 :
727 :	anton	1.47	min ( n1 n2 -- n ) core
728 :	anton	1.1	if (n1<n2)
729 :			n = n1;
730 :			else
731 :			n = n2;
732 :			:
733 :			2dup > IF swap THEN drop ;
734 :
735 :	anton	1.52	abs ( n -- u ) core
736 :			if (n<0)
737 :			u = -n;
738 :	anton	1.1	else
739 :	anton	1.52	u = n;
740 :	anton	1.1	:
741 :			dup 0< IF negate THEN ;
742 :
743 :	anton	1.47	* ( n1 n2 -- n ) core star
744 :	anton	1.1	n = n1*n2;
745 :			:
746 :			um* drop ;
747 :
748 :	anton	1.47	/ ( n1 n2 -- n ) core slash
749 :	anton	1.1	n = n1/n2;
750 :			:
751 :			/mod nip ;
752 :
753 :	anton	1.47	mod ( n1 n2 -- n ) core
754 :	anton	1.1	n = n1%n2;
755 :			:
756 :			/mod drop ;
757 :
758 :	anton	1.47	/mod ( n1 n2 -- n3 n4 ) core slash_mod
759 :	anton	1.1	n4 = n1/n2;
760 :			n3 = n1%n2; /* !! is this correct? look into C standard! */
761 :			:
762 :			>r s>d r> fm/mod ;
763 :
764 :	anton	1.47	2* ( n1 -- n2 ) core two_star
765 :	anton	1.52	""Shift left by 1; also works on unsigned numbers""
766 :	anton	1.1	n2 = 2*n1;
767 :			:
768 :			dup + ;
769 :
770 :	anton	1.47	2/ ( n1 -- n2 ) core two_slash
771 :	anton	1.52	""Arithmetic shift right by 1. For signed numbers this is a floored
772 :			division by 2 (note that @code{/} not necessarily floors).""
773 :	anton	1.1	n2 = n1>>1;
774 :			:
775 :			dup MINI and IF 1 ELSE 0 THEN
776 :			[ bits/byte cell * 1- ] literal
777 :	jwilke	1.5	0 DO 2* swap dup 2* >r MINI and
778 :	anton	1.1	IF 1 ELSE 0 THEN or r> swap
779 :			LOOP nip ;
780 :
781 :	anton	1.47	fm/mod ( d1 n1 -- n2 n3 ) core f_m_slash_mod
782 :	crook	1.29	""Floored division: @i{d1} = @i{n3}*@i{n1}+@i{n2}, @i{n1}>@i{n2}>=0 or 0>=@i{n2}>@i{n1}.""
783 :	anton	1.1	#ifdef BUGGY_LONG_LONG
784 :			DCell r = fmdiv(d1,n1);
785 :			n2=r.hi;
786 :			n3=r.lo;
787 :			#else
788 :			/* assumes that the processor uses either floored or symmetric division */
789 :			n3 = d1/n1;
790 :			n2 = d1%n1;
791 :			/* note that this 1%-3>0 is optimized by the compiler */
792 :			if (1%-3>0 && (d1<0) != (n1<0) && n2!=0) {
793 :			n3--;
794 :			n2+=n1;
795 :			}
796 :			#endif
797 :			:
798 :			dup >r dup 0< IF negate >r dnegate r> THEN
799 :			over 0< IF tuck + swap THEN
800 :			um/mod
801 :			r> 0< IF swap negate swap THEN ;
802 :
803 :	anton	1.47	sm/rem ( d1 n1 -- n2 n3 ) core s_m_slash_rem
804 :	crook	1.29	""Symmetric division: @i{d1} = @i{n3}*@i{n1}+@i{n2}, sign(@i{n2})=sign(@i{d1}) or 0.""
805 :	anton	1.1	#ifdef BUGGY_LONG_LONG
806 :			DCell r = smdiv(d1,n1);
807 :			n2=r.hi;
808 :			n3=r.lo;
809 :			#else
810 :			/* assumes that the processor uses either floored or symmetric division */
811 :			n3 = d1/n1;
812 :			n2 = d1%n1;
813 :			/* note that this 1%-3<0 is optimized by the compiler */
814 :			if (1%-3<0 && (d1<0) != (n1<0) && n2!=0) {
815 :			n3++;
816 :			n2-=n1;
817 :			}
818 :			#endif
819 :			:
820 :			over >r dup >r abs -rot
821 :			dabs rot um/mod
822 :			r> r@ xor 0< IF negate THEN
823 :			r> 0< IF swap negate swap THEN ;
824 :
825 :	anton	1.47	m* ( n1 n2 -- d ) core m_star
826 :	anton	1.1	#ifdef BUGGY_LONG_LONG
827 :			d = mmul(n1,n2);
828 :			#else
829 :			d = (DCell)n1 * (DCell)n2;
830 :			#endif
831 :			:
832 :			2dup 0< and >r
833 :			2dup swap 0< and >r
834 :			um* r> - r> - ;
835 :
836 :	anton	1.47	um* ( u1 u2 -- ud ) core u_m_star
837 :	anton	1.1	/* use u* as alias */
838 :			#ifdef BUGGY_LONG_LONG
839 :			ud = ummul(u1,u2);
840 :			#else
841 :			ud = (UDCell)u1 * (UDCell)u2;
842 :			#endif
843 :			:
844 :	pazsan	1.137	0 -rot dup [ 8 cells ] literal -
845 :	anton	1.1	DO
846 :	pazsan	1.137	dup 0< I' and d2*+ drop
847 :			LOOP ;
848 :	anton	1.1	: d2*+ ( ud n -- ud+n c )
849 :			over MINI
850 :			and >r >r 2dup d+ swap r> + swap r> ;
851 :
852 :	anton	1.47	um/mod ( ud u1 -- u2 u3 ) core u_m_slash_mod
853 :	anton	1.32	""ud=u3*u1+u2, u1>u2>=0""
854 :	anton	1.1	#ifdef BUGGY_LONG_LONG
855 :			UDCell r = umdiv(ud,u1);
856 :			u2=r.hi;
857 :			u3=r.lo;
858 :			#else
859 :			u3 = ud/u1;
860 :			u2 = ud%u1;
861 :			#endif
862 :			:
863 :			0 swap [ 8 cells 1 + ] literal 0
864 :	jwilke	1.5	?DO /modstep
865 :	anton	1.1	LOOP drop swap 1 rshift or swap ;
866 :			: /modstep ( ud c R: u -- ud-?u c R: u )
867 :	jwilke	1.5	>r over r@ u< 0= or IF r@ - 1 ELSE 0 THEN d2*+ r> ;
868 :	anton	1.1	: d2*+ ( ud n -- ud+n c )
869 :			over MINI
870 :			and >r >r 2dup d+ swap r> + swap r> ;
871 :
872 :	anton	1.47	m+ ( d1 n -- d2 ) double m_plus
873 :	anton	1.1	#ifdef BUGGY_LONG_LONG
874 :			d2.lo = d1.lo+n;
875 :			d2.hi = d1.hi - (n<0) + (d2.lo<d1.lo);
876 :			#else
877 :			d2 = d1+n;
878 :			#endif
879 :			:
880 :			s>d d+ ;
881 :
882 :	anton	1.47	d+ ( d1 d2 -- d ) double d_plus
883 :	anton	1.1	#ifdef BUGGY_LONG_LONG
884 :			d.lo = d1.lo+d2.lo;
885 :			d.hi = d1.hi + d2.hi + (d.lo<d1.lo);
886 :			#else
887 :			d = d1+d2;
888 :			#endif
889 :			:
890 :			rot + >r tuck + swap over u> r> swap - ;
891 :
892 :	anton	1.47	d- ( d1 d2 -- d ) double d_minus
893 :	anton	1.1	#ifdef BUGGY_LONG_LONG
894 :			d.lo = d1.lo - d2.lo;
895 :			d.hi = d1.hi-d2.hi-(d1.lo<d2.lo);
896 :			#else
897 :			d = d1-d2;
898 :			#endif
899 :			:
900 :			dnegate d+ ;
901 :
902 :	anton	1.47	dnegate ( d1 -- d2 ) double d_negate
903 :	anton	1.1	/* use dminus as alias */
904 :			#ifdef BUGGY_LONG_LONG
905 :			d2 = dnegate(d1);
906 :			#else
907 :			d2 = -d1;
908 :			#endif
909 :			:
910 :			invert swap negate tuck 0= - ;
911 :
912 :	anton	1.47	d2* ( d1 -- d2 ) double d_two_star
913 :	anton	1.52	""Shift left by 1; also works on unsigned numbers""
914 :	anton	1.1	#ifdef BUGGY_LONG_LONG
915 :			d2.lo = d1.lo<<1;
916 :			d2.hi = (d1.hi<<1) \| (d1.lo>>(CELL_BITS-1));
917 :			#else
918 :			d2 = 2*d1;
919 :			#endif
920 :			:
921 :			2dup d+ ;
922 :
923 :	anton	1.47	d2/ ( d1 -- d2 ) double d_two_slash
924 :	anton	1.52	""Arithmetic shift right by 1. For signed numbers this is a floored
925 :			division by 2.""
926 :	anton	1.1	#ifdef BUGGY_LONG_LONG
927 :			d2.hi = d1.hi>>1;
928 :			d2.lo= (d1.lo>>1) \| (d1.hi<<(CELL_BITS-1));
929 :			#else
930 :			d2 = d1>>1;
931 :			#endif
932 :			:
933 :			dup 1 and >r 2/ swap 2/ [ 1 8 cells 1- lshift 1- ] Literal and
934 :			r> IF [ 1 8 cells 1- lshift ] Literal + THEN swap ;
935 :
936 :	anton	1.47	and ( w1 w2 -- w ) core
937 :	anton	1.1	w = w1&w2;
938 :
939 :	anton	1.47	or ( w1 w2 -- w ) core
940 :	anton	1.1	w = w1\|w2;
941 :			:
942 :			invert swap invert and invert ;
943 :
944 :	anton	1.47	xor ( w1 w2 -- w ) core x_or
945 :	anton	1.1	w = w1^w2;
946 :
947 :	anton	1.47	invert ( w1 -- w2 ) core
948 :	anton	1.1	w2 = ~w1;
949 :			:
950 :			MAXU xor ;
951 :
952 :	anton	1.47	rshift ( u1 n -- u2 ) core r_shift
953 :	anton	1.53	""Logical shift right by @i{n} bits.""
954 :	anton	1.1	u2 = u1>>n;
955 :			:
956 :			0 ?DO 2/ MAXI and LOOP ;
957 :
958 :	anton	1.47	lshift ( u1 n -- u2 ) core l_shift
959 :	anton	1.1	u2 = u1<<n;
960 :			:
961 :			0 ?DO 2* LOOP ;
962 :
963 :	pazsan	1.110	\g compare
964 :
965 :	anton	1.1	\ comparisons(prefix, args, prefix, arg1, arg2, wordsets...)
966 :			define(comparisons,
967 :	anton	1.47	$1= ( $2 -- f ) $6 $3equals
968 :	anton	1.1	f = FLAG($4==$5);
969 :			:
970 :			[ char $1x char 0 = [IF]
971 :			] IF false ELSE true THEN [
972 :			[ELSE]
973 :			] xor 0= [
974 :			[THEN] ] ;
975 :
976 :	anton	1.47	$1<> ( $2 -- f ) $7 $3not_equals
977 :	anton	1.1	f = FLAG($4!=$5);
978 :			:
979 :			[ char $1x char 0 = [IF]
980 :			] IF true ELSE false THEN [
981 :			[ELSE]
982 :			] xor 0<> [
983 :			[THEN] ] ;
984 :
985 :	anton	1.47	$1< ( $2 -- f ) $8 $3less_than
986 :	anton	1.1	f = FLAG($4<$5);
987 :			:
988 :			[ char $1x char 0 = [IF]
989 :			] MINI and 0<> [
990 :			[ELSE] char $1x char u = [IF]
991 :			] 2dup xor 0< IF nip ELSE - THEN 0< [
992 :			[ELSE]
993 :			] MINI xor >r MINI xor r> u< [
994 :			[THEN]
995 :			[THEN] ] ;
996 :
997 :	anton	1.47	$1> ( $2 -- f ) $9 $3greater_than
998 :	anton	1.1	f = FLAG($4>$5);
999 :			:
1000 :			[ char $1x char 0 = [IF] ] negate [ [ELSE] ] swap [ [THEN] ]
1001 :			$1< ;
1002 :
1003 :	anton	1.47	$1<= ( $2 -- f ) gforth $3less_or_equal
1004 :	anton	1.1	f = FLAG($4<=$5);
1005 :			:
1006 :			$1> 0= ;
1007 :
1008 :	anton	1.47	$1>= ( $2 -- f ) gforth $3greater_or_equal
1009 :	anton	1.1	f = FLAG($4>=$5);
1010 :			:
1011 :			[ char $1x char 0 = [IF] ] negate [ [ELSE] ] swap [ [THEN] ]
1012 :			$1<= ;
1013 :
1014 :			)
1015 :
1016 :			comparisons(0, n, zero_, n, 0, core, core-ext, core, core-ext)
1017 :			comparisons(, n1 n2, , n1, n2, core, core-ext, core, core)
1018 :			comparisons(u, u1 u2, u_, u1, u2, gforth, gforth, core, core-ext)
1019 :
1020 :			\ dcomparisons(prefix, args, prefix, arg1, arg2, wordsets...)
1021 :			define(dcomparisons,
1022 :	anton	1.47	$1= ( $2 -- f ) $6 $3equals
1023 :	anton	1.1	#ifdef BUGGY_LONG_LONG
1024 :			f = FLAG($4.lo==$5.lo && $4.hi==$5.hi);
1025 :			#else
1026 :			f = FLAG($4==$5);
1027 :			#endif
1028 :
1029 :	anton	1.47	$1<> ( $2 -- f ) $7 $3not_equals
1030 :	anton	1.1	#ifdef BUGGY_LONG_LONG
1031 :			f = FLAG($4.lo!=$5.lo \|\| $4.hi!=$5.hi);
1032 :			#else
1033 :			f = FLAG($4!=$5);
1034 :			#endif
1035 :
1036 :	anton	1.47	$1< ( $2 -- f ) $8 $3less_than
1037 :	anton	1.1	#ifdef BUGGY_LONG_LONG
1038 :			f = FLAG($4.hi==$5.hi ? $4.lo<$5.lo : $4.hi<$5.hi);
1039 :			#else
1040 :			f = FLAG($4<$5);
1041 :			#endif
1042 :
1043 :	anton	1.47	$1> ( $2 -- f ) $9 $3greater_than
1044 :	anton	1.1	#ifdef BUGGY_LONG_LONG
1045 :			f = FLAG($4.hi==$5.hi ? $4.lo>$5.lo : $4.hi>$5.hi);
1046 :			#else
1047 :			f = FLAG($4>$5);
1048 :			#endif
1049 :
1050 :	anton	1.47	$1<= ( $2 -- f ) gforth $3less_or_equal
1051 :	anton	1.1	#ifdef BUGGY_LONG_LONG
1052 :			f = FLAG($4.hi==$5.hi ? $4.lo<=$5.lo : $4.hi<=$5.hi);
1053 :			#else
1054 :			f = FLAG($4<=$5);
1055 :			#endif
1056 :
1057 :	anton	1.47	$1>= ( $2 -- f ) gforth $3greater_or_equal
1058 :	anton	1.1	#ifdef BUGGY_LONG_LONG
1059 :			f = FLAG($4.hi==$5.hi ? $4.lo>=$5.lo : $4.hi>=$5.hi);
1060 :			#else
1061 :			f = FLAG($4>=$5);
1062 :			#endif
1063 :
1064 :			)
1065 :
1066 :	pazsan	1.15	\+dcomps
1067 :	anton	1.1
1068 :			dcomparisons(d, d1 d2, d_, d1, d2, double, gforth, double, gforth)
1069 :			dcomparisons(d0, d, d_zero_, d, DZERO, double, gforth, double, gforth)
1070 :			dcomparisons(du, ud1 ud2, d_u_, ud1, ud2, gforth, gforth, double-ext, gforth)
1071 :
1072 :	pazsan	1.15	\+
1073 :	anton	1.1
1074 :	anton	1.47	within ( u1 u2 u3 -- f ) core-ext
1075 :	anton	1.32	""u2=<u1<u3 or: u3=<u2 and u1 is not in [u3,u2). This works for
1076 :			unsigned and signed numbers (but not a mixture). Another way to think
1077 :			about this word is to consider the numbers as a circle (wrapping
1078 :			around from @code{max-u} to 0 for unsigned, and from @code{max-n} to
1079 :			min-n for signed numbers); now consider the range from u2 towards
1080 :			increasing numbers up to and excluding u3 (giving an empty range if
1081 :	anton	1.52	u2=u3); if u1 is in this range, @code{within} returns true.""
1082 :	anton	1.1	f = FLAG(u1-u2 < u3-u2);
1083 :			:
1084 :			over - >r - r> u< ;
1085 :
1086 :	pazsan	1.112	\g stack
1087 :
1088 :			useraddr ( #u -- a_addr ) new
1089 :			a_addr = (Cell *)(up+u);
1090 :
1091 :			up! ( a_addr -- ) gforth up_store
1092 :			UP=up=(char *)a_addr;
1093 :			:
1094 :			up ! ;
1095 :			Variable UP
1096 :
1097 :	anton	1.47	sp@ ( -- a_addr ) gforth sp_fetch
1098 :	anton	1.1	a_addr = sp+1;
1099 :
1100 :	anton	1.47	sp! ( a_addr -- ) gforth sp_store
1101 :	anton	1.1	sp = a_addr;
1102 :	anton	1.64	/* works with and without spTOS caching */
1103 :	anton	1.1
1104 :	anton	1.47	rp@ ( -- a_addr ) gforth rp_fetch
1105 :	anton	1.1	a_addr = rp;
1106 :
1107 :	anton	1.47	rp! ( a_addr -- ) gforth rp_store
1108 :	anton	1.1	rp = a_addr;
1109 :
1110 :	pazsan	1.15	\+floating
1111 :	anton	1.1
1112 :	anton	1.47	fp@ ( -- f_addr ) gforth fp_fetch
1113 :	anton	1.1	f_addr = fp;
1114 :
1115 :	anton	1.47	fp! ( f_addr -- ) gforth fp_store
1116 :	anton	1.1	fp = f_addr;
1117 :
1118 :	pazsan	1.15	\+
1119 :	anton	1.1
1120 :	anton	1.65	>r ( w -- R:w ) core to_r
1121 :	anton	1.1	:
1122 :			(>r) ;
1123 :			: (>r) rp@ cell+ @ rp@ ! rp@ cell+ ! ;
1124 :
1125 :	anton	1.65	r> ( R:w -- w ) core r_from
1126 :	anton	1.1	:
1127 :			rp@ cell+ @ rp@ @ rp@ cell+ ! (rdrop) rp@ ! ;
1128 :			Create (rdrop) ' ;s A,
1129 :
1130 :	anton	1.65	rdrop ( R:w -- ) gforth
1131 :	anton	1.1	:
1132 :			r> r> drop >r ;
1133 :
1134 :	pazsan	1.136	2>r ( d -- R:d ) core-ext two_to_r
1135 :	anton	1.1	:
1136 :			swap r> swap >r swap >r >r ;
1137 :
1138 :	pazsan	1.136	2r> ( R:d -- d ) core-ext two_r_from
1139 :	anton	1.1	:
1140 :			r> r> swap r> swap >r swap ;
1141 :
1142 :	pazsan	1.136	2r@ ( R:d -- R:d d ) core-ext two_r_fetch
1143 :	anton	1.1	:
1144 :			i' j ;
1145 :
1146 :	pazsan	1.136	2rdrop ( R:d -- ) gforth two_r_drop
1147 :	anton	1.1	:
1148 :			r> r> drop r> drop >r ;
1149 :
1150 :	anton	1.47	over ( w1 w2 -- w1 w2 w1 ) core
1151 :	anton	1.1	:
1152 :			sp@ cell+ @ ;
1153 :
1154 :	anton	1.47	drop ( w -- ) core
1155 :	anton	1.1	:
1156 :			IF THEN ;
1157 :
1158 :	anton	1.47	swap ( w1 w2 -- w2 w1 ) core
1159 :	anton	1.1	:
1160 :			>r (swap) ! r> (swap) @ ;
1161 :			Variable (swap)
1162 :
1163 :	anton	1.47	dup ( w -- w w ) core dupe
1164 :	anton	1.1	:
1165 :			sp@ @ ;
1166 :
1167 :	anton	1.47	rot ( w1 w2 w3 -- w2 w3 w1 ) core rote
1168 :	anton	1.1	:
1169 :			[ defined? (swap) [IF] ]
1170 :			(swap) ! (rot) ! >r (rot) @ (swap) @ r> ;
1171 :			Variable (rot)
1172 :			[ELSE] ]
1173 :			>r swap r> swap ;
1174 :			[THEN]
1175 :
1176 :	anton	1.47	-rot ( w1 w2 w3 -- w3 w1 w2 ) gforth not_rote
1177 :	anton	1.1	:
1178 :			rot rot ;
1179 :
1180 :	anton	1.47	nip ( w1 w2 -- w2 ) core-ext
1181 :	anton	1.1	:
1182 :	jwilke	1.6	swap drop ;
1183 :	anton	1.1
1184 :	anton	1.47	tuck ( w1 w2 -- w2 w1 w2 ) core-ext
1185 :	anton	1.1	:
1186 :			swap over ;
1187 :
1188 :	anton	1.47	?dup ( w -- w ) core question_dupe
1189 :	anton	1.52	""Actually the stack effect is: @code{( w -- 0 \| w w )}. It performs a
1190 :			@code{dup} if w is nonzero.""
1191 :	anton	1.1	if (w!=0) {
1192 :	anton	1.64	IF_spTOS(*sp-- = w;)
1193 :	anton	1.1	#ifndef USE_TOS
1194 :			*--sp = w;
1195 :			#endif
1196 :			}
1197 :			:
1198 :			dup IF dup THEN ;
1199 :
1200 :	anton	1.47	pick ( u -- w ) core-ext
1201 :	anton	1.52	""Actually the stack effect is @code{ x0 ... xu u -- x0 ... xu x0 }.""
1202 :	anton	1.1	w = sp[u+1];
1203 :			:
1204 :			1+ cells sp@ + @ ;
1205 :
1206 :	anton	1.47	2drop ( w1 w2 -- ) core two_drop
1207 :	anton	1.1	:
1208 :			drop drop ;
1209 :
1210 :	anton	1.47	2dup ( w1 w2 -- w1 w2 w1 w2 ) core two_dupe
1211 :	anton	1.1	:
1212 :			over over ;
1213 :
1214 :	anton	1.47	2over ( w1 w2 w3 w4 -- w1 w2 w3 w4 w1 w2 ) core two_over
1215 :	anton	1.1	:
1216 :			3 pick 3 pick ;
1217 :
1218 :	anton	1.47	2swap ( w1 w2 w3 w4 -- w3 w4 w1 w2 ) core two_swap
1219 :	anton	1.1	:
1220 :			rot >r rot r> ;
1221 :
1222 :	anton	1.47	2rot ( w1 w2 w3 w4 w5 w6 -- w3 w4 w5 w6 w1 w2 ) double-ext two_rote
1223 :	anton	1.1	:
1224 :			>r >r 2swap r> r> 2swap ;
1225 :
1226 :	anton	1.47	2nip ( w1 w2 w3 w4 -- w3 w4 ) gforth two_nip
1227 :	anton	1.1	:
1228 :			2swap 2drop ;
1229 :
1230 :	anton	1.47	2tuck ( w1 w2 w3 w4 -- w3 w4 w1 w2 w3 w4 ) gforth two_tuck
1231 :	anton	1.1	:
1232 :			2swap 2over ;
1233 :
1234 :			\ toggle is high-level: 0.11/0.42%
1235 :
1236 :	pazsan	1.110	\g memory
1237 :
1238 :	anton	1.47	@ ( a_addr -- w ) core fetch
1239 :	anton	1.52	""@i{w} is the cell stored at @i{a_addr}.""
1240 :	anton	1.1	w = *a_addr;
1241 :
1242 :	pazsan	1.112	\ lit@ / lit_fetch = lit @
1243 :
1244 :			lit@ ( #a_addr -- w ) new lit_fetch
1245 :			w = *a_addr;
1246 :
1247 :	anton	1.47	! ( w a_addr -- ) core store
1248 :	anton	1.52	""Store @i{w} into the cell at @i{a-addr}.""
1249 :	anton	1.1	*a_addr = w;
1250 :
1251 :	anton	1.47	+! ( n a_addr -- ) core plus_store
1252 :	anton	1.52	""Add @i{n} to the cell at @i{a-addr}.""
1253 :	anton	1.1	*a_addr += n;
1254 :			:
1255 :			tuck @ + swap ! ;
1256 :
1257 :	anton	1.47	c@ ( c_addr -- c ) core c_fetch
1258 :	anton	1.52	""@i{c} is the char stored at @i{c_addr}.""
1259 :	anton	1.1	c = *c_addr;
1260 :			:
1261 :			[ bigendian [IF] ]
1262 :			[ cell>bit 4 = [IF] ]
1263 :			dup [ 0 cell - ] Literal and @ swap 1 and
1264 :			IF $FF and ELSE 8>> THEN ;
1265 :			[ [ELSE] ]
1266 :			dup [ cell 1- ] literal and
1267 :			tuck - @ swap [ cell 1- ] literal xor
1268 :			0 ?DO 8>> LOOP $FF and
1269 :			[ [THEN] ]
1270 :			[ [ELSE] ]
1271 :			[ cell>bit 4 = [IF] ]
1272 :			dup [ 0 cell - ] Literal and @ swap 1 and
1273 :			IF 8>> ELSE $FF and THEN
1274 :			[ [ELSE] ]
1275 :			dup [ cell 1- ] literal and
1276 :			tuck - @ swap
1277 :			0 ?DO 8>> LOOP 255 and
1278 :			[ [THEN] ]
1279 :			[ [THEN] ]
1280 :			;
1281 :			: 8>> 2/ 2/ 2/ 2/ 2/ 2/ 2/ 2/ ;
1282 :
1283 :	anton	1.47	c! ( c c_addr -- ) core c_store
1284 :	anton	1.52	""Store @i{c} into the char at @i{c-addr}.""
1285 :	anton	1.1	*c_addr = c;
1286 :			:
1287 :			[ bigendian [IF] ]
1288 :			[ cell>bit 4 = [IF] ]
1289 :			tuck 1 and IF $FF and ELSE 8<< THEN >r
1290 :			dup -2 and @ over 1 and cells masks + @ and
1291 :			r> or swap -2 and ! ;
1292 :			Create masks $00FF , $FF00 ,
1293 :			[ELSE] ]
1294 :			dup [ cell 1- ] literal and dup
1295 :			[ cell 1- ] literal xor >r
1296 :			- dup @ $FF r@ 0 ?DO 8<< LOOP invert and
1297 :			rot $FF and r> 0 ?DO 8<< LOOP or swap ! ;
1298 :			[THEN]
1299 :			[ELSE] ]
1300 :			[ cell>bit 4 = [IF] ]
1301 :			tuck 1 and IF 8<< ELSE $FF and THEN >r
1302 :			dup -2 and @ over 1 and cells masks + @ and
1303 :			r> or swap -2 and ! ;
1304 :			Create masks $FF00 , $00FF ,
1305 :			[ELSE] ]
1306 :			dup [ cell 1- ] literal and dup >r
1307 :			- dup @ $FF r@ 0 ?DO 8<< LOOP invert and
1308 :			rot $FF and r> 0 ?DO 8<< LOOP or swap ! ;
1309 :			[THEN]
1310 :			[THEN]
1311 :			: 8<< 2* 2* 2* 2* 2* 2* 2* 2* ;
1312 :
1313 :	anton	1.47	2! ( w1 w2 a_addr -- ) core two_store
1314 :	anton	1.52	""Store @i{w2} into the cell at @i{c-addr} and @i{w1} into the next cell.""
1315 :	anton	1.1	a_addr[0] = w2;
1316 :			a_addr[1] = w1;
1317 :			:
1318 :			tuck ! cell+ ! ;
1319 :
1320 :	anton	1.47	2@ ( a_addr -- w1 w2 ) core two_fetch
1321 :	anton	1.52	""@i{w2} is the content of the cell stored at @i{a-addr}, @i{w1} is
1322 :			the content of the next cell.""
1323 :	anton	1.1	w2 = a_addr[0];
1324 :			w1 = a_addr[1];
1325 :			:
1326 :			dup cell+ @ swap @ ;
1327 :
1328 :	anton	1.47	cell+ ( a_addr1 -- a_addr2 ) core cell_plus
1329 :	anton	1.52	""@code{1 cells +}""
1330 :	anton	1.1	a_addr2 = a_addr1+1;
1331 :			:
1332 :			cell + ;
1333 :
1334 :	anton	1.47	cells ( n1 -- n2 ) core
1335 :	anton	1.52	"" @i{n2} is the number of address units of @i{n1} cells.""
1336 :	anton	1.1	n2 = n1 * sizeof(Cell);
1337 :			:
1338 :			[ cell
1339 :			2/ dup [IF] ] 2* [ [THEN]
1340 :			2/ dup [IF] ] 2* [ [THEN]
1341 :			2/ dup [IF] ] 2* [ [THEN]
1342 :			2/ dup [IF] ] 2* [ [THEN]
1343 :			drop ] ;
1344 :
1345 :	anton	1.47	char+ ( c_addr1 -- c_addr2 ) core char_plus
1346 :	anton	1.52	""@code{1 chars +}.""
1347 :	anton	1.1	c_addr2 = c_addr1 + 1;
1348 :			:
1349 :			1+ ;
1350 :
1351 :	anton	1.47	(chars) ( n1 -- n2 ) gforth paren_chars
1352 :	anton	1.1	n2 = n1 * sizeof(Char);
1353 :			:
1354 :			;
1355 :
1356 :	anton	1.47	count ( c_addr1 -- c_addr2 u ) core
1357 :	anton	1.56	""@i{c-addr2} is the first character and @i{u} the length of the
1358 :			counted string at @i{c-addr1}.""
1359 :	anton	1.1	u = *c_addr1;
1360 :			c_addr2 = c_addr1+1;
1361 :			:
1362 :			dup 1+ swap c@ ;
1363 :
1364 :	pazsan	1.110	\g compiler
1365 :
1366 :	pazsan	1.138	\+f83headerstring
1367 :
1368 :			(f83find) ( c_addr u f83name1 -- f83name2 ) new paren_f83find
1369 :			for (; f83name1 != NULL; f83name1 = (struct F83Name *)(f83name1->next))
1370 :			if ((UCell)F83NAME_COUNT(f83name1)==u &&
1371 :			memcasecmp(c_addr, f83name1->name, u)== 0 /* or inline? */)
1372 :			break;
1373 :			f83name2=f83name1;
1374 :			:
1375 :			BEGIN dup WHILE (find-samelen) dup WHILE
1376 :			>r 2dup r@ cell+ char+ capscomp 0=
1377 :			IF 2drop r> EXIT THEN
1378 :			r> @
1379 :			REPEAT THEN nip nip ;
1380 :			: (find-samelen) ( u f83name1 -- u f83name2/0 )
1381 :			BEGIN 2dup cell+ c@ $1F and <> WHILE @ dup 0= UNTIL THEN ;
1382 :			: capscomp ( c_addr1 u c_addr2 -- n )
1383 :			swap bounds
1384 :			?DO dup c@ I c@ <>
1385 :			IF dup c@ toupper I c@ toupper =
1386 :			ELSE true THEN WHILE 1+ LOOP drop 0
1387 :			ELSE c@ toupper I c@ toupper - unloop THEN sgn ;
1388 :			: sgn ( n -- -1/0/1 )
1389 :			dup 0= IF EXIT THEN 0< 2* 1+ ;
1390 :
1391 :			\-
1392 :
1393 :	pazsan	1.112	(listlfind) ( c_addr u longname1 -- longname2 ) new paren_listlfind
1394 :	anton	1.125	longname2=listlfind(c_addr, u, longname1);
1395 :	anton	1.1	:
1396 :	pazsan	1.112	BEGIN dup WHILE (findl-samelen) dup WHILE
1397 :			>r 2dup r@ cell+ cell+ capscomp 0=
1398 :	anton	1.1	IF 2drop r> EXIT THEN
1399 :			r> @
1400 :			REPEAT THEN nip nip ;
1401 :	pazsan	1.112	: (findl-samelen) ( u longname1 -- u longname2/0 )
1402 :			BEGIN 2dup cell+ @ lcount-mask and <> WHILE @ dup 0= UNTIL THEN ;
1403 :	pazsan	1.144	: capscomp ( c_addr1 u c_addr2 -- n )
1404 :			swap bounds
1405 :			?DO dup c@ I c@ <>
1406 :			IF dup c@ toupper I c@ toupper =
1407 :			ELSE true THEN WHILE 1+ LOOP drop 0
1408 :			ELSE c@ toupper I c@ toupper - unloop THEN sgn ;
1409 :			: sgn ( n -- -1/0/1 )
1410 :			dup 0= IF EXIT THEN 0< 2* 1+ ;
1411 :	anton	1.1
1412 :	pazsan	1.15	\+hash
1413 :	anton	1.1
1414 :	pazsan	1.112	(hashlfind) ( c_addr u a_addr -- longname2 ) new paren_hashlfind
1415 :	anton	1.125	longname2 = hashlfind(c_addr, u, a_addr);
1416 :	anton	1.1	:
1417 :			BEGIN dup WHILE
1418 :	pazsan	1.112	2@ >r >r dup r@ cell+ @ lcount-mask and =
1419 :			IF 2dup r@ cell+ cell+ capscomp 0=
1420 :	anton	1.1	IF 2drop r> rdrop EXIT THEN THEN
1421 :			rdrop r>
1422 :			REPEAT nip nip ;
1423 :
1424 :	pazsan	1.112	(tablelfind) ( c_addr u a_addr -- longname2 ) new paren_tablelfind
1425 :	anton	1.1	""A case-sensitive variant of @code{(hashfind)}""
1426 :	anton	1.125	longname2 = tablelfind(c_addr, u, a_addr);
1427 :	anton	1.1	:
1428 :			BEGIN dup WHILE
1429 :	pazsan	1.112	2@ >r >r dup r@ cell+ @ lcount-mask and =
1430 :			IF 2dup r@ cell+ cell+ -text 0=
1431 :	anton	1.1	IF 2drop r> rdrop EXIT THEN THEN
1432 :			rdrop r>
1433 :			REPEAT nip nip ;
1434 :	pazsan	1.138	: -text ( c_addr1 u c_addr2 -- n )
1435 :			swap bounds
1436 :			?DO dup c@ I c@ = WHILE 1+ LOOP drop 0
1437 :			ELSE c@ I c@ - unloop THEN sgn ;
1438 :			: sgn ( n -- -1/0/1 )
1439 :			dup 0= IF EXIT THEN 0< 2* 1+ ;
1440 :	anton	1.1
1441 :	anton	1.47	(hashkey1) ( c_addr u ubits -- ukey ) gforth paren_hashkey1
1442 :	anton	1.1	""ukey is the hash key for the string c_addr u fitting in ubits bits""
1443 :	anton	1.125	ukey = hashkey1(c_addr, u, ubits);
1444 :	anton	1.1	:
1445 :			dup rot-values + c@ over 1 swap lshift 1- >r
1446 :			tuck - 2swap r> 0 2swap bounds
1447 :			?DO dup 4 pick lshift swap 3 pick rshift or
1448 :			I c@ toupper xor
1449 :			over and LOOP
1450 :			nip nip nip ;
1451 :			Create rot-values
1452 :			5 c, 0 c, 1 c, 2 c, 3 c, 4 c, 5 c, 5 c, 5 c, 5 c,
1453 :			3 c, 5 c, 5 c, 5 c, 5 c, 7 c, 5 c, 5 c, 5 c, 5 c,
1454 :			7 c, 5 c, 5 c, 5 c, 5 c, 6 c, 5 c, 5 c, 5 c, 5 c,
1455 :			7 c, 5 c, 5 c,
1456 :	pazsan	1.138
1457 :			\+
1458 :	anton	1.1
1459 :	pazsan	1.15	\+
1460 :	anton	1.1
1461 :	anton	1.47	(parse-white) ( c_addr1 u1 -- c_addr2 u2 ) gforth paren_parse_white
1462 :	anton	1.125	struct Cellpair r=parse_white(c_addr1, u1);
1463 :			c_addr2 = (Char *)(r.n1);
1464 :			u2 = r.n2;
1465 :	anton	1.1	:
1466 :			BEGIN dup WHILE over c@ bl <= WHILE 1 /string
1467 :			REPEAT THEN 2dup
1468 :			BEGIN dup WHILE over c@ bl > WHILE 1 /string
1469 :			REPEAT THEN nip - ;
1470 :
1471 :	anton	1.47	aligned ( c_addr -- a_addr ) core
1472 :	crook	1.29	"" @i{a-addr} is the first aligned address greater than or equal to @i{c-addr}.""
1473 :	anton	1.1	a_addr = (Cell *)((((Cell)c_addr)+(sizeof(Cell)-1))&(-sizeof(Cell)));
1474 :			:
1475 :			[ cell 1- ] Literal + [ -1 cells ] Literal and ;
1476 :
1477 :	anton	1.47	faligned ( c_addr -- f_addr ) float f_aligned
1478 :	crook	1.29	"" @i{f-addr} is the first float-aligned address greater than or equal to @i{c-addr}.""
1479 :	anton	1.1	f_addr = (Float *)((((Cell)c_addr)+(sizeof(Float)-1))&(-sizeof(Float)));
1480 :			:
1481 :			[ 1 floats 1- ] Literal + [ -1 floats ] Literal and ;
1482 :
1483 :	jwilke	1.35	\ threading stuff is currently only interesting if we have a compiler
1484 :			\fhas? standardthreading has? compiler and [IF]
1485 :	anton	1.47	threading-method ( -- n ) gforth threading_method
1486 :	anton	1.1	""0 if the engine is direct threaded. Note that this may change during
1487 :			the lifetime of an image.""
1488 :			#if defined(DOUBLY_INDIRECT)
1489 :			n=2;
1490 :			#else
1491 :			# if defined(DIRECT_THREADED)
1492 :			n=0;
1493 :			# else
1494 :			n=1;
1495 :			# endif
1496 :			#endif
1497 :			:
1498 :			1 ;
1499 :	jwilke	1.28
1500 :	jwilke	1.35	\f[THEN]
1501 :	anton	1.1
1502 :	pazsan	1.83	\g hostos
1503 :
1504 :	anton	1.47	key-file ( wfileid -- n ) gforth paren_key_file
1505 :	pazsan	1.17	#ifdef HAS_FILE
1506 :	anton	1.1	fflush(stdout);
1507 :	pazsan	1.12	n = key((FILE*)wfileid);
1508 :	pazsan	1.17	#else
1509 :			n = key(stdin);
1510 :			#endif
1511 :	anton	1.1
1512 :	anton	1.47	key?-file ( wfileid -- n ) facility key_q_file
1513 :	pazsan	1.17	#ifdef HAS_FILE
1514 :	anton	1.1	fflush(stdout);
1515 :	pazsan	1.12	n = key_query((FILE*)wfileid);
1516 :	pazsan	1.17	#else
1517 :			n = key_query(stdin);
1518 :			#endif
1519 :
1520 :			\+os
1521 :	pazsan	1.12
1522 :	anton	1.47	stdin ( -- wfileid ) gforth
1523 :	pazsan	1.12	wfileid = (Cell)stdin;
1524 :	anton	1.1
1525 :	anton	1.47	stdout ( -- wfileid ) gforth
1526 :	anton	1.1	wfileid = (Cell)stdout;
1527 :
1528 :	anton	1.47	stderr ( -- wfileid ) gforth
1529 :	anton	1.1	wfileid = (Cell)stderr;
1530 :
1531 :	anton	1.47	form ( -- urows ucols ) gforth
1532 :	anton	1.1	""The number of lines and columns in the terminal. These numbers may change
1533 :			with the window size.""
1534 :			/* we could block SIGWINCH here to get a consistent size, but I don't
1535 :			think this is necessary or always beneficial */
1536 :			urows=rows;
1537 :			ucols=cols;
1538 :
1539 :	anton	1.47	flush-icache ( c_addr u -- ) gforth flush_icache
1540 :	anton	1.1	""Make sure that the instruction cache of the processor (if there is
1541 :	crook	1.29	one) does not contain stale data at @i{c-addr} and @i{u} bytes
1542 :	anton	1.1	afterwards. @code{END-CODE} performs a @code{flush-icache}
1543 :			automatically. Caveat: @code{flush-icache} might not work on your
1544 :			installation; this is usually the case if direct threading is not
1545 :			supported on your machine (take a look at your @file{machine.h}) and
1546 :			your machine has a separate instruction cache. In such cases,
1547 :			@code{flush-icache} does nothing instead of flushing the instruction
1548 :			cache.""
1549 :			FLUSH_ICACHE(c_addr,u);
1550 :
1551 :	anton	1.47	(bye) ( n -- ) gforth paren_bye
1552 :	anton	1.77	SUPER_END;
1553 :	anton	1.1	return (Label *)n;
1554 :
1555 :	anton	1.125	(system) ( c_addr u -- wretval wior ) gforth paren_system
1556 :	pazsan	1.20	#ifndef MSDOS
1557 :	anton	1.1	int old_tp=terminal_prepped;
1558 :			deprep_terminal();
1559 :	pazsan	1.20	#endif
1560 :	anton	1.1	wretval=system(cstr(c_addr,u,1)); /* ~ expansion on first part of string? */
1561 :			wior = IOR(wretval==-1 \|\| (wretval==127 && errno != 0));
1562 :	pazsan	1.20	#ifndef MSDOS
1563 :	anton	1.1	if (old_tp)
1564 :			prep_terminal();
1565 :	pazsan	1.20	#endif
1566 :	anton	1.1
1567 :	anton	1.47	getenv ( c_addr1 u1 -- c_addr2 u2 ) gforth
1568 :	crook	1.29	""The string @i{c-addr1 u1} specifies an environment variable. The string @i{c-addr2 u2}
1569 :	crook	1.24	is the host operating system's expansion of that environment variable. If the
1570 :	crook	1.29	environment variable does not exist, @i{c-addr2 u2} specifies a string 0 characters
1571 :	crook	1.24	in length.""
1572 :	pazsan	1.46	/* close ' to keep fontify happy */
1573 :	anton	1.1	c_addr2 = getenv(cstr(c_addr1,u1,1));
1574 :			u2 = (c_addr2 == NULL ? 0 : strlen(c_addr2));
1575 :
1576 :	anton	1.56	open-pipe ( c_addr u wfam -- wfileid wior ) gforth open_pipe
1577 :	pazsan	1.84	wfileid=(Cell)popen(cstr(c_addr,u,1),pfileattr[wfam]); /* ~ expansion of 1st arg? */
1578 :	anton	1.1	wior = IOR(wfileid==0); /* !! the man page says that errno is not set reliably */
1579 :
1580 :	anton	1.47	close-pipe ( wfileid -- wretval wior ) gforth close_pipe
1581 :	anton	1.1	wretval = pclose((FILE *)wfileid);
1582 :			wior = IOR(wretval==-1);
1583 :
1584 :	anton	1.47	time&date ( -- nsec nmin nhour nday nmonth nyear ) facility-ext time_and_date
1585 :	crook	1.44	""Report the current time of day. Seconds, minutes and hours are numbered from 0.
1586 :			Months are numbered from 1.""
1587 :	anton	1.127	#if 1
1588 :			time_t now;
1589 :			struct tm *ltime;
1590 :			time(&now);
1591 :			ltime=localtime(&now);
1592 :			#else
1593 :	anton	1.1	struct timeval time1;
1594 :			struct timezone zone1;
1595 :			struct tm *ltime;
1596 :			gettimeofday(&time1,&zone1);
1597 :	anton	1.51	/* !! Single Unix specification:
1598 :			If tzp is not a null pointer, the behaviour is unspecified. */
1599 :	anton	1.1	ltime=localtime((time_t *)&time1.tv_sec);
1600 :	anton	1.127	#endif
1601 :	anton	1.1	nyear =ltime->tm_year+1900;
1602 :			nmonth=ltime->tm_mon+1;
1603 :			nday =ltime->tm_mday;
1604 :			nhour =ltime->tm_hour;
1605 :			nmin =ltime->tm_min;
1606 :			nsec =ltime->tm_sec;
1607 :
1608 :	anton	1.47	ms ( n -- ) facility-ext
1609 :	crook	1.44	""Wait at least @i{n} milli-second.""
1610 :	anton	1.1	struct timeval timeout;
1611 :			timeout.tv_sec=n/1000;
1612 :			timeout.tv_usec=1000*(n%1000);
1613 :			(void)select(0,0,0,0,&timeout);
1614 :
1615 :	anton	1.47	allocate ( u -- a_addr wior ) memory
1616 :	crook	1.29	""Allocate @i{u} address units of contiguous data space. The initial
1617 :	crook	1.27	contents of the data space is undefined. If the allocation is successful,
1618 :	crook	1.29	@i{a-addr} is the start address of the allocated region and @i{wior}
1619 :			is 0. If the allocation fails, @i{a-addr} is undefined and @i{wior}
1620 :	anton	1.52	is a non-zero I/O result code.""
1621 :	anton	1.1	a_addr = (Cell *)malloc(u?u:1);
1622 :			wior = IOR(a_addr==NULL);
1623 :
1624 :	anton	1.47	free ( a_addr -- wior ) memory
1625 :	crook	1.29	""Return the region of data space starting at @i{a-addr} to the system.
1626 :	anton	1.52	The region must originally have been obtained using @code{allocate} or
1627 :	crook	1.29	@code{resize}. If the operational is successful, @i{wior} is 0.
1628 :	anton	1.52	If the operation fails, @i{wior} is a non-zero I/O result code.""
1629 :	anton	1.1	free(a_addr);
1630 :			wior = 0;
1631 :
1632 :	anton	1.47	resize ( a_addr1 u -- a_addr2 wior ) memory
1633 :	crook	1.26	""Change the size of the allocated area at @i{a-addr1} to @i{u}
1634 :	anton	1.1	address units, possibly moving the contents to a different
1635 :	crook	1.27	area. @i{a-addr2} is the address of the resulting area.
1636 :	anton	1.52	If the operation is successful, @i{wior} is 0.
1637 :			If the operation fails, @i{wior} is a non-zero
1638 :	crook	1.29	I/O result code. If @i{a-addr1} is 0, Gforth's (but not the Standard)
1639 :	crook	1.27	@code{resize} @code{allocate}s @i{u} address units.""
1640 :	anton	1.1	/* the following check is not necessary on most OSs, but it is needed
1641 :			on SunOS 4.1.2. */
1642 :	pazsan	1.46	/* close ' to keep fontify happy */
1643 :	anton	1.1	if (a_addr1==NULL)
1644 :			a_addr2 = (Cell *)malloc(u);
1645 :			else
1646 :			a_addr2 = (Cell *)realloc(a_addr1, u);
1647 :			wior = IOR(a_addr2==NULL); /* !! Define a return code */
1648 :
1649 :	anton	1.47	strerror ( n -- c_addr u ) gforth
1650 :	anton	1.1	c_addr = strerror(n);
1651 :			u = strlen(c_addr);
1652 :
1653 :	anton	1.47	strsignal ( n -- c_addr u ) gforth
1654 :	anton	1.133	c_addr = (Address)strsignal(n);
1655 :	anton	1.1	u = strlen(c_addr);
1656 :
1657 :	anton	1.47	call-c ( w -- ) gforth call_c
1658 :	anton	1.1	""Call the C function pointed to by @i{w}. The C function has to
1659 :			access the stack itself. The stack pointers are exported in the global
1660 :			variables @code{SP} and @code{FP}.""
1661 :			/* This is a first attempt at support for calls to C. This may change in
1662 :			the future */
1663 :	anton	1.64	IF_fpTOS(fp[0]=fpTOS);
1664 :	anton	1.1	FP=fp;
1665 :			SP=sp;
1666 :			((void (*)())w)();
1667 :			sp=SP;
1668 :			fp=FP;
1669 :	anton	1.64	IF_spTOS(spTOS=sp[0]);
1670 :			IF_fpTOS(fpTOS=fp[0]);
1671 :	anton	1.1
1672 :	pazsan	1.15	\+
1673 :			\+file
1674 :	anton	1.1
1675 :	anton	1.47	close-file ( wfileid -- wior ) file close_file
1676 :	anton	1.1	wior = IOR(fclose((FILE *)wfileid)==EOF);
1677 :
1678 :	anton	1.56	open-file ( c_addr u wfam -- wfileid wior ) file open_file
1679 :			wfileid = (Cell)fopen(tilde_cstr(c_addr, u, 1), fileattr[wfam]);
1680 :	crook	1.22	wior = IOR(wfileid == 0);
1681 :	anton	1.1
1682 :	anton	1.56	create-file ( c_addr u wfam -- wfileid wior ) file create_file
1683 :	anton	1.1	Cell fd;
1684 :	anton	1.56	fd = open(tilde_cstr(c_addr, u, 1), O_CREAT\|O_TRUNC\|ufileattr[wfam], 0666);
1685 :	anton	1.1	if (fd != -1) {
1686 :	anton	1.56	wfileid = (Cell)fdopen(fd, fileattr[wfam]);
1687 :	crook	1.22	wior = IOR(wfileid == 0);
1688 :	anton	1.1	} else {
1689 :	crook	1.22	wfileid = 0;
1690 :	anton	1.1	wior = IOR(1);
1691 :			}
1692 :
1693 :	anton	1.47	delete-file ( c_addr u -- wior ) file delete_file
1694 :	anton	1.1	wior = IOR(unlink(tilde_cstr(c_addr, u, 1))==-1);
1695 :
1696 :	anton	1.47	rename-file ( c_addr1 u1 c_addr2 u2 -- wior ) file-ext rename_file
1697 :	crook	1.29	""Rename file @i{c_addr1 u1} to new name @i{c_addr2 u2}""
1698 :	anton	1.125	wior = rename_file(c_addr1, u1, c_addr2, u2);
1699 :	anton	1.1
1700 :	anton	1.47	file-position ( wfileid -- ud wior ) file file_position
1701 :	anton	1.1	/* !! use tell and lseek? */
1702 :	anton	1.108	ud = OFF2UD(ftello((FILE *)wfileid));
1703 :			wior = IOR(UD2OFF(ud)==-1);
1704 :	anton	1.1
1705 :	anton	1.47	reposition-file ( ud wfileid -- wior ) file reposition_file
1706 :	anton	1.108	wior = IOR(fseeko((FILE *)wfileid, UD2OFF(ud), SEEK_SET)==-1);
1707 :	anton	1.1
1708 :	anton	1.47	file-size ( wfileid -- ud wior ) file file_size
1709 :	anton	1.1	struct stat buf;
1710 :			wior = IOR(fstat(fileno((FILE *)wfileid), &buf)==-1);
1711 :	anton	1.108	ud = OFF2UD(buf.st_size);
1712 :	anton	1.1
1713 :	anton	1.47	resize-file ( ud wfileid -- wior ) file resize_file
1714 :	anton	1.108	wior = IOR(ftruncate(fileno((FILE *)wfileid), UD2OFF(ud))==-1);
1715 :	anton	1.1
1716 :	anton	1.47	read-file ( c_addr u1 wfileid -- u2 wior ) file read_file
1717 :	anton	1.1	/* !! fread does not guarantee enough */
1718 :			u2 = fread(c_addr, sizeof(Char), u1, (FILE *)wfileid);
1719 :			wior = FILEIO(u2<u1 && ferror((FILE *)wfileid));
1720 :			/* !! is the value of ferror errno-compatible? */
1721 :			if (wior)
1722 :			clearerr((FILE *)wfileid);
1723 :
1724 :	anton	1.125	(read-line) ( c_addr u1 wfileid -- u2 flag u3 wior ) file paren_read_line
1725 :			struct Cellquad r = read_line(c_addr, u1, wfileid);
1726 :			u2 = r.n1;
1727 :			flag = r.n2;
1728 :			u3 = r.n3;
1729 :			wior = r.n4;
1730 :	anton	1.1
1731 :	pazsan	1.15	\+
1732 :	anton	1.1
1733 :	anton	1.47	write-file ( c_addr u1 wfileid -- wior ) file write_file
1734 :	anton	1.1	/* !! fwrite does not guarantee enough */
1735 :	pazsan	1.39	#ifdef HAS_FILE
1736 :	anton	1.1	{
1737 :			UCell u2 = fwrite(c_addr, sizeof(Char), u1, (FILE *)wfileid);
1738 :			wior = FILEIO(u2<u1 && ferror((FILE *)wfileid));
1739 :			if (wior)
1740 :			clearerr((FILE *)wfileid);
1741 :			}
1742 :	pazsan	1.39	#else
1743 :			TYPE(c_addr, u1);
1744 :			#endif
1745 :	pazsan	1.17
1746 :	anton	1.47	emit-file ( c wfileid -- wior ) gforth emit_file
1747 :	pazsan	1.17	#ifdef HAS_FILE
1748 :	anton	1.1	wior = FILEIO(putc(c, (FILE *)wfileid)==EOF);
1749 :			if (wior)
1750 :			clearerr((FILE *)wfileid);
1751 :	pazsan	1.17	#else
1752 :	pazsan	1.36	PUTC(c);
1753 :	pazsan	1.17	#endif
1754 :	anton	1.1
1755 :	pazsan	1.15	\+file
1756 :	anton	1.1
1757 :	anton	1.47	flush-file ( wfileid -- wior ) file-ext flush_file
1758 :	anton	1.1	wior = IOR(fflush((FILE *) wfileid)==EOF);
1759 :
1760 :	anton	1.56	file-status ( c_addr u -- wfam wior ) file-ext file_status
1761 :	anton	1.125	struct Cellpair r = file_status(c_addr, u);
1762 :			wfam = r.n1;
1763 :			wior = r.n2;
1764 :	anton	1.1
1765 :	pazsan	1.112	file-eof? ( wfileid -- flag ) gforth file_eof_query
1766 :			flag = FLAG(feof((FILE *) wfileid));
1767 :	anton	1.1
1768 :	pazsan	1.112	open-dir ( c_addr u -- wdirid wior ) gforth open_dir
1769 :			""Open the directory specified by @i{c-addr, u}
1770 :			and return @i{dir-id} for futher access to it.""
1771 :			wdirid = (Cell)opendir(tilde_cstr(c_addr, u, 1));
1772 :			wior = IOR(wdirid == 0);
1773 :
1774 :			read-dir ( c_addr u1 wdirid -- u2 flag wior ) gforth read_dir
1775 :			""Attempt to read the next entry from the directory specified
1776 :			by @i{dir-id} to the buffer of length @i{u1} at address @i{c-addr}.
1777 :			If the attempt fails because there is no more entries,
1778 :			@i{ior}=0, @i{flag}=0, @i{u2}=0, and the buffer is unmodified.
1779 :			If the attempt to read the next entry fails because of any other reason,
1780 :			return @i{ior}<>0.
1781 :			If the attempt succeeds, store file name to the buffer at @i{c-addr}
1782 :			and return @i{ior}=0, @i{flag}=true and @i{u2} equal to the size of the file name.
1783 :			If the length of the file name is greater than @i{u1},
1784 :			store first @i{u1} characters from file name into the buffer and
1785 :			indicate "name too long" with @i{ior}, @i{flag}=true, and @i{u2}=@i{u1}.""
1786 :			struct dirent * dent;
1787 :			dent = readdir((DIR *)wdirid);
1788 :			wior = 0;
1789 :			flag = -1;
1790 :			if(dent == NULL) {
1791 :			u2 = 0;
1792 :			flag = 0;
1793 :			} else {
1794 :			u2 = strlen(dent->d_name);
1795 :			if(u2 > u1) {
1796 :			u2 = u1;
1797 :			wior = -512-ENAMETOOLONG;
1798 :			}
1799 :			memmove(c_addr, dent->d_name, u2);
1800 :			}
1801 :
1802 :			close-dir ( wdirid -- wior ) gforth close_dir
1803 :			""Close the directory specified by @i{dir-id}.""
1804 :			wior = IOR(closedir((DIR *)wdirid));
1805 :
1806 :			filename-match ( c_addr1 u1 c_addr2 u2 -- flag ) gforth match_file
1807 :			char * string = cstr(c_addr1, u1, 1);
1808 :			char * pattern = cstr(c_addr2, u2, 0);
1809 :			flag = FLAG(!fnmatch(pattern, string, 0));
1810 :
1811 :			\+
1812 :
1813 :			newline ( -- c_addr u ) gforth
1814 :			""String containing the newline sequence of the host OS""
1815 :			char newline[] = {
1816 :	anton	1.115	#if DIRSEP=='/'
1817 :			/* Unix */
1818 :	pazsan	1.112	'\n'
1819 :			#else
1820 :	anton	1.115	/* DOS, Win, OS/2 */
1821 :	pazsan	1.112	'\r','\n'
1822 :			#endif
1823 :			};
1824 :			c_addr=newline;
1825 :			u=sizeof(newline);
1826 :			:
1827 :			"newline count ;
1828 :			Create "newline e? crlf [IF] 2 c, $0D c, [ELSE] 1 c, [THEN] $0A c,
1829 :
1830 :			\+os
1831 :
1832 :			utime ( -- dtime ) gforth
1833 :			""Report the current time in microseconds since some epoch.""
1834 :			struct timeval time1;
1835 :			gettimeofday(&time1,NULL);
1836 :			dtime = timeval2us(&time1);
1837 :
1838 :			cputime ( -- duser dsystem ) gforth
1839 :			""duser and dsystem are the respective user- and system-level CPU
1840 :			times used since the start of the Forth system (excluding child
1841 :			processes), in microseconds (the granularity may be much larger,
1842 :			however). On platforms without the getrusage call, it reports elapsed
1843 :			time (since some epoch) for duser and 0 for dsystem.""
1844 :			#ifdef HAVE_GETRUSAGE
1845 :			struct rusage usage;
1846 :			getrusage(RUSAGE_SELF, &usage);
1847 :			duser = timeval2us(&usage.ru_utime);
1848 :			dsystem = timeval2us(&usage.ru_stime);
1849 :			#else
1850 :			struct timeval time1;
1851 :			gettimeofday(&time1,NULL);
1852 :			duser = timeval2us(&time1);
1853 :			#ifndef BUGGY_LONG_LONG
1854 :			dsystem = (DCell)0;
1855 :			#else
1856 :			dsystem=(DCell){0,0};
1857 :			#endif
1858 :			#endif
1859 :
1860 :			\+
1861 :
1862 :			\+floating
1863 :
1864 :			\g floating
1865 :	pazsan	1.83
1866 :	anton	1.1	comparisons(f, r1 r2, f_, r1, r2, gforth, gforth, float, gforth)
1867 :			comparisons(f0, r, f_zero_, r, 0., float, gforth, float, gforth)
1868 :
1869 :	anton	1.47	d>f ( d -- r ) float d_to_f
1870 :	anton	1.1	#ifdef BUGGY_LONG_LONG
1871 :			extern double ldexp(double x, int exp);
1872 :	anton	1.113	if (d.hi<0) {
1873 :			DCell d2=dnegate(d);
1874 :			r = -(ldexp((Float)d2.hi,CELL_BITS) + (Float)d2.lo);
1875 :			} else
1876 :			r = ldexp((Float)d.hi,CELL_BITS) + (Float)d.lo;
1877 :	anton	1.1	#else
1878 :			r = d;
1879 :			#endif
1880 :
1881 :	anton	1.47	f>d ( r -- d ) float f_to_d
1882 :	pazsan	1.100	extern DCell double2ll(Float r);
1883 :			d = double2ll(r);
1884 :	anton	1.1
1885 :	anton	1.47	f! ( r f_addr -- ) float f_store
1886 :	anton	1.52	""Store @i{r} into the float at address @i{f-addr}.""
1887 :	anton	1.1	*f_addr = r;
1888 :
1889 :	anton	1.47	f@ ( f_addr -- r ) float f_fetch
1890 :	anton	1.52	""@i{r} is the float at address @i{f-addr}.""
1891 :	anton	1.1	r = *f_addr;
1892 :
1893 :	anton	1.47	df@ ( df_addr -- r ) float-ext d_f_fetch
1894 :	anton	1.52	""Fetch the double-precision IEEE floating-point value @i{r} from the address @i{df-addr}.""
1895 :	anton	1.1	#ifdef IEEE_FP
1896 :			r = *df_addr;
1897 :			#else
1898 :			!! df@
1899 :			#endif
1900 :
1901 :	anton	1.47	df! ( r df_addr -- ) float-ext d_f_store
1902 :	anton	1.52	""Store @i{r} as double-precision IEEE floating-point value to the
1903 :			address @i{df-addr}.""
1904 :	anton	1.1	#ifdef IEEE_FP
1905 :			*df_addr = r;
1906 :			#else
1907 :			!! df!
1908 :			#endif
1909 :
1910 :	anton	1.47	sf@ ( sf_addr -- r ) float-ext s_f_fetch
1911 :	anton	1.52	""Fetch the single-precision IEEE floating-point value @i{r} from the address @i{sf-addr}.""
1912 :	anton	1.1	#ifdef IEEE_FP
1913 :			r = *sf_addr;
1914 :			#else
1915 :			!! sf@
1916 :			#endif
1917 :
1918 :	anton	1.47	sf! ( r sf_addr -- ) float-ext s_f_store
1919 :	anton	1.52	""Store @i{r} as single-precision IEEE floating-point value to the
1920 :			address @i{sf-addr}.""
1921 :	anton	1.1	#ifdef IEEE_FP
1922 :			*sf_addr = r;
1923 :			#else
1924 :			!! sf!
1925 :			#endif
1926 :
1927 :	anton	1.47	f+ ( r1 r2 -- r3 ) float f_plus
1928 :	anton	1.1	r3 = r1+r2;
1929 :
1930 :	anton	1.47	f- ( r1 r2 -- r3 ) float f_minus
1931 :	anton	1.1	r3 = r1-r2;
1932 :
1933 :	anton	1.47	f* ( r1 r2 -- r3 ) float f_star
1934 :	anton	1.1	r3 = r1*r2;
1935 :
1936 :	anton	1.47	f/ ( r1 r2 -- r3 ) float f_slash
1937 :	anton	1.1	r3 = r1/r2;
1938 :
1939 :	anton	1.47	f** ( r1 r2 -- r3 ) float-ext f_star_star
1940 :	crook	1.26	""@i{r3} is @i{r1} raised to the @i{r2}th power.""
1941 :	anton	1.1	r3 = pow(r1,r2);
1942 :
1943 :	anton	1.47	fnegate ( r1 -- r2 ) float f_negate
1944 :	anton	1.1	r2 = - r1;
1945 :
1946 :	anton	1.47	fdrop ( r -- ) float f_drop
1947 :	anton	1.1
1948 :	anton	1.47	fdup ( r -- r r ) float f_dupe
1949 :	anton	1.1
1950 :	anton	1.47	fswap ( r1 r2 -- r2 r1 ) float f_swap
1951 :	anton	1.1
1952 :	anton	1.47	fover ( r1 r2 -- r1 r2 r1 ) float f_over
1953 :	anton	1.1
1954 :	anton	1.47	frot ( r1 r2 r3 -- r2 r3 r1 ) float f_rote
1955 :	anton	1.1
1956 :	anton	1.47	fnip ( r1 r2 -- r2 ) gforth f_nip
1957 :	anton	1.1
1958 :	anton	1.47	ftuck ( r1 r2 -- r2 r1 r2 ) gforth f_tuck
1959 :	anton	1.1
1960 :	anton	1.47	float+ ( f_addr1 -- f_addr2 ) float float_plus
1961 :	anton	1.52	""@code{1 floats +}.""
1962 :	anton	1.1	f_addr2 = f_addr1+1;
1963 :
1964 :	anton	1.47	floats ( n1 -- n2 ) float
1965 :	anton	1.52	""@i{n2} is the number of address units of @i{n1} floats.""
1966 :	anton	1.1	n2 = n1*sizeof(Float);
1967 :
1968 :	anton	1.47	floor ( r1 -- r2 ) float
1969 :	crook	1.26	""Round towards the next smaller integral value, i.e., round toward negative infinity.""
1970 :	anton	1.1	/* !! unclear wording */
1971 :			r2 = floor(r1);
1972 :
1973 :	anton	1.105	fround ( r1 -- r2 ) gforth f_round
1974 :			""Round to the nearest integral value.""
1975 :	anton	1.1	r2 = rint(r1);
1976 :
1977 :	anton	1.47	fmax ( r1 r2 -- r3 ) float f_max
1978 :	anton	1.1	if (r1<r2)
1979 :			r3 = r2;
1980 :			else
1981 :			r3 = r1;
1982 :
1983 :	anton	1.47	fmin ( r1 r2 -- r3 ) float f_min
1984 :	anton	1.1	if (r1<r2)
1985 :			r3 = r1;
1986 :			else
1987 :			r3 = r2;
1988 :
1989 :	anton	1.47	represent ( r c_addr u -- n f1 f2 ) float
1990 :	anton	1.1	char *sig;
1991 :	anton	1.122	size_t siglen;
1992 :	anton	1.1	int flag;
1993 :			int decpt;
1994 :			sig=ecvt(r, u, &decpt, &flag);
1995 :	anton	1.122	n=(r==0. ? 1 : decpt);
1996 :	anton	1.1	f1=FLAG(flag!=0);
1997 :	anton	1.21	f2=FLAG(isdigit((unsigned)(sig[0]))!=0);
1998 :	anton	1.122	siglen=strlen(sig);
1999 :	anton	1.124	if (siglen>u) /* happens in glibc-2.1.3 if 999.. is rounded up */
2000 :			siglen=u;
2001 :	anton	1.122	memcpy(c_addr,sig,siglen);
2002 :	anton	1.123	memset(c_addr+siglen,f2?'0':' ',u-siglen);
2003 :	anton	1.1
2004 :	anton	1.47	>float ( c_addr u -- flag ) float to_float
2005 :	anton	1.56	""Actual stack effect: ( c_addr u -- r t \| f ). Attempt to convert the
2006 :			character string @i{c-addr u} to internal floating-point
2007 :			representation. If the string represents a valid floating-point number
2008 :			@i{r} is placed on the floating-point stack and @i{flag} is
2009 :			true. Otherwise, @i{flag} is false. A string of blanks is a special
2010 :			case and represents the floating-point number 0.""
2011 :	anton	1.1	Float r;
2012 :	anton	1.125	flag = to_float(c_addr, u, &r);
2013 :			if (flag) {
2014 :			IF_fpTOS(fp[0] = fpTOS);
2015 :			fp += -1;
2016 :			fpTOS = r;
2017 :	anton	1.1	}
2018 :
2019 :	anton	1.47	fabs ( r1 -- r2 ) float-ext f_abs
2020 :	anton	1.1	r2 = fabs(r1);
2021 :
2022 :	anton	1.47	facos ( r1 -- r2 ) float-ext f_a_cos
2023 :	anton	1.1	r2 = acos(r1);
2024 :
2025 :	anton	1.47	fasin ( r1 -- r2 ) float-ext f_a_sine
2026 :	anton	1.1	r2 = asin(r1);
2027 :
2028 :	anton	1.47	fatan ( r1 -- r2 ) float-ext f_a_tan
2029 :	anton	1.1	r2 = atan(r1);
2030 :
2031 :	anton	1.47	fatan2 ( r1 r2 -- r3 ) float-ext f_a_tan_two
2032 :	crook	1.26	""@i{r1/r2}=tan(@i{r3}). ANS Forth does not require, but probably
2033 :	anton	1.1	intends this to be the inverse of @code{fsincos}. In gforth it is.""
2034 :			r3 = atan2(r1,r2);
2035 :
2036 :	anton	1.47	fcos ( r1 -- r2 ) float-ext f_cos
2037 :	anton	1.1	r2 = cos(r1);
2038 :
2039 :	anton	1.47	fexp ( r1 -- r2 ) float-ext f_e_x_p
2040 :	anton	1.1	r2 = exp(r1);
2041 :
2042 :	anton	1.47	fexpm1 ( r1 -- r2 ) float-ext f_e_x_p_m_one
2043 :	anton	1.1	""@i{r2}=@i{e}**@i{r1}@minus{}1""
2044 :			#ifdef HAVE_EXPM1
2045 :	pazsan	1.3	extern double
2046 :			#ifdef NeXT
2047 :			const
2048 :			#endif
2049 :			expm1(double);
2050 :	anton	1.1	r2 = expm1(r1);
2051 :			#else
2052 :			r2 = exp(r1)-1.;
2053 :			#endif
2054 :
2055 :	anton	1.47	fln ( r1 -- r2 ) float-ext f_l_n
2056 :	anton	1.1	r2 = log(r1);
2057 :
2058 :	anton	1.47	flnp1 ( r1 -- r2 ) float-ext f_l_n_p_one
2059 :	anton	1.1	""@i{r2}=ln(@i{r1}+1)""
2060 :			#ifdef HAVE_LOG1P
2061 :	pazsan	1.3	extern double
2062 :			#ifdef NeXT
2063 :			const
2064 :			#endif
2065 :			log1p(double);
2066 :	anton	1.1	r2 = log1p(r1);
2067 :			#else
2068 :			r2 = log(r1+1.);
2069 :			#endif
2070 :
2071 :	anton	1.47	flog ( r1 -- r2 ) float-ext f_log
2072 :	crook	1.26	""The decimal logarithm.""
2073 :	anton	1.1	r2 = log10(r1);
2074 :
2075 :	anton	1.47	falog ( r1 -- r2 ) float-ext f_a_log
2076 :	anton	1.1	""@i{r2}=10**@i{r1}""
2077 :			extern double pow10(double);
2078 :			r2 = pow10(r1);
2079 :
2080 :	anton	1.47	fsin ( r1 -- r2 ) float-ext f_sine
2081 :	anton	1.1	r2 = sin(r1);
2082 :
2083 :	anton	1.47	fsincos ( r1 -- r2 r3 ) float-ext f_sine_cos
2084 :	anton	1.1	""@i{r2}=sin(@i{r1}), @i{r3}=cos(@i{r1})""
2085 :			r2 = sin(r1);
2086 :			r3 = cos(r1);
2087 :
2088 :	anton	1.47	fsqrt ( r1 -- r2 ) float-ext f_square_root
2089 :	anton	1.1	r2 = sqrt(r1);
2090 :
2091 :	anton	1.47	ftan ( r1 -- r2 ) float-ext f_tan
2092 :	anton	1.1	r2 = tan(r1);
2093 :			:
2094 :			fsincos f/ ;
2095 :
2096 :	anton	1.47	fsinh ( r1 -- r2 ) float-ext f_cinch
2097 :	anton	1.1	r2 = sinh(r1);
2098 :			:
2099 :			fexpm1 fdup fdup 1. d>f f+ f/ f+ f2/ ;
2100 :
2101 :	anton	1.47	fcosh ( r1 -- r2 ) float-ext f_cosh
2102 :	anton	1.1	r2 = cosh(r1);
2103 :			:
2104 :			fexp fdup 1/f f+ f2/ ;
2105 :
2106 :	anton	1.47	ftanh ( r1 -- r2 ) float-ext f_tan_h
2107 :	anton	1.1	r2 = tanh(r1);
2108 :			:
2109 :			f2* fexpm1 fdup 2. d>f f+ f/ ;
2110 :
2111 :	anton	1.47	fasinh ( r1 -- r2 ) float-ext f_a_cinch
2112 :	anton	1.1	r2 = asinh(r1);
2113 :			:
2114 :			fdup fdup f* 1. d>f f+ fsqrt f/ fatanh ;
2115 :
2116 :	anton	1.47	facosh ( r1 -- r2 ) float-ext f_a_cosh
2117 :	anton	1.1	r2 = acosh(r1);
2118 :			:
2119 :			fdup fdup f* 1. d>f f- fsqrt f+ fln ;
2120 :
2121 :	anton	1.47	fatanh ( r1 -- r2 ) float-ext f_a_tan_h
2122 :	anton	1.1	r2 = atanh(r1);
2123 :			:
2124 :			fdup f0< >r fabs 1. d>f fover f- f/ f2* flnp1 f2/
2125 :			r> IF fnegate THEN ;
2126 :
2127 :	anton	1.47	sfloats ( n1 -- n2 ) float-ext s_floats
2128 :	anton	1.52	""@i{n2} is the number of address units of @i{n1}
2129 :	crook	1.29	single-precision IEEE floating-point numbers.""
2130 :	anton	1.1	n2 = n1*sizeof(SFloat);
2131 :
2132 :	anton	1.47	dfloats ( n1 -- n2 ) float-ext d_floats
2133 :	anton	1.52	""@i{n2} is the number of address units of @i{n1}
2134 :	crook	1.29	double-precision IEEE floating-point numbers.""
2135 :	anton	1.1	n2 = n1*sizeof(DFloat);
2136 :
2137 :	anton	1.47	sfaligned ( c_addr -- sf_addr ) float-ext s_f_aligned
2138 :	anton	1.52	""@i{sf-addr} is the first single-float-aligned address greater
2139 :	crook	1.29	than or equal to @i{c-addr}.""
2140 :	anton	1.1	sf_addr = (SFloat *)((((Cell)c_addr)+(sizeof(SFloat)-1))&(-sizeof(SFloat)));
2141 :			:
2142 :			[ 1 sfloats 1- ] Literal + [ -1 sfloats ] Literal and ;
2143 :
2144 :	anton	1.47	dfaligned ( c_addr -- df_addr ) float-ext d_f_aligned
2145 :	anton	1.52	""@i{df-addr} is the first double-float-aligned address greater
2146 :	crook	1.29	than or equal to @i{c-addr}.""
2147 :	anton	1.1	df_addr = (DFloat *)((((Cell)c_addr)+(sizeof(DFloat)-1))&(-sizeof(DFloat)));
2148 :			:
2149 :			[ 1 dfloats 1- ] Literal + [ -1 dfloats ] Literal and ;
2150 :
2151 :	pazsan	1.112	v* ( f_addr1 nstride1 f_addr2 nstride2 ucount -- r ) gforth v_star
2152 :			""dot-product: r=v1*v2. The first element of v1 is at f_addr1, the
2153 :			next at f_addr1+nstride1 and so on (similar for v2). Both vectors have
2154 :			ucount elements.""
2155 :	anton	1.125	r = v_star(f_addr1, nstride1, f_addr2, nstride2, ucount);
2156 :	pazsan	1.112	:
2157 :			>r swap 2swap swap 0e r> 0 ?DO
2158 :			dup f@ over + 2swap dup f@ f* f+ over + 2swap
2159 :			LOOP 2drop 2drop ;
2160 :
2161 :			faxpy ( ra f_x nstridex f_y nstridey ucount -- ) gforth
2162 :			""vy=ra*vx+vy""
2163 :	anton	1.125	faxpy(ra, f_x, nstridex, f_y, nstridey, ucount);
2164 :	pazsan	1.112	:
2165 :			>r swap 2swap swap r> 0 ?DO
2166 :			fdup dup f@ f* over + 2swap dup f@ f+ dup f! over + 2swap
2167 :			LOOP 2drop 2drop fdrop ;
2168 :
2169 :			\+
2170 :
2171 :	anton	1.1	\ The following words access machine/OS/installation-dependent
2172 :			\ Gforth internals
2173 :			\ !! how about environmental queries DIRECT-THREADED,
2174 :			\ INDIRECT-THREADED, TOS-CACHED, FTOS-CACHED, CODEFIELD-DOES */
2175 :
2176 :			\ local variable implementation primitives
2177 :	pazsan	1.112
2178 :	pazsan	1.15	\+glocals
2179 :	anton	1.1
2180 :	pazsan	1.110	\g locals
2181 :
2182 :	anton	1.68	@local# ( #noffset -- w ) gforth fetch_local_number
2183 :			w = (Cell )(lp+noffset);
2184 :	anton	1.1
2185 :	anton	1.47	@local0 ( -- w ) new fetch_local_zero
2186 :	pazsan	1.112	w = ((Cell *)lp)[0];
2187 :	anton	1.1
2188 :	anton	1.47	@local1 ( -- w ) new fetch_local_four
2189 :	pazsan	1.112	w = ((Cell *)lp)[1];
2190 :	anton	1.1
2191 :	anton	1.47	@local2 ( -- w ) new fetch_local_eight
2192 :	pazsan	1.112	w = ((Cell *)lp)[2];
2193 :	anton	1.1
2194 :	anton	1.47	@local3 ( -- w ) new fetch_local_twelve
2195 :	pazsan	1.112	w = ((Cell *)lp)[3];
2196 :	anton	1.1
2197 :	pazsan	1.15	\+floating
2198 :	anton	1.1
2199 :	anton	1.68	f@local# ( #noffset -- r ) gforth f_fetch_local_number
2200 :			r = (Float )(lp+noffset);
2201 :	anton	1.1
2202 :	anton	1.47	f@local0 ( -- r ) new f_fetch_local_zero
2203 :	pazsan	1.112	r = ((Float *)lp)[0];
2204 :	anton	1.1
2205 :	anton	1.47	f@local1 ( -- r ) new f_fetch_local_eight
2206 :	pazsan	1.112	r = ((Float *)lp)[1];
2207 :	anton	1.1
2208 :	pazsan	1.15	\+
2209 :	anton	1.1
2210 :	anton	1.68	laddr# ( #noffset -- c_addr ) gforth laddr_number
2211 :	anton	1.1	/* this can also be used to implement lp@ */
2212 :	anton	1.68	c_addr = (Char *)(lp+noffset);
2213 :	anton	1.1
2214 :	anton	1.68	lp+!# ( #noffset -- ) gforth lp_plus_store_number
2215 :	anton	1.1	""used with negative immediate values it allocates memory on the
2216 :			local stack, a positive immediate argument drops memory from the local
2217 :			stack""
2218 :	anton	1.68	lp += noffset;
2219 :	anton	1.1
2220 :	anton	1.47	lp- ( -- ) new minus_four_lp_plus_store
2221 :	anton	1.1	lp += -sizeof(Cell);
2222 :
2223 :	anton	1.47	lp+ ( -- ) new eight_lp_plus_store
2224 :	anton	1.1	lp += sizeof(Float);
2225 :
2226 :	anton	1.47	lp+2 ( -- ) new sixteen_lp_plus_store
2227 :	anton	1.1	lp += 2*sizeof(Float);
2228 :
2229 :	anton	1.47	lp! ( c_addr -- ) gforth lp_store
2230 :	anton	1.1	lp = (Address)c_addr;
2231 :
2232 :	anton	1.47	>l ( w -- ) gforth to_l
2233 :	anton	1.1	lp -= sizeof(Cell);
2234 :			(Cell )lp = w;
2235 :
2236 :	pazsan	1.15	\+floating
2237 :	anton	1.1
2238 :	anton	1.47	f>l ( r -- ) gforth f_to_l
2239 :	anton	1.1	lp -= sizeof(Float);
2240 :			(Float )lp = r;
2241 :
2242 :	anton	1.47	fpick ( u -- r ) gforth
2243 :	anton	1.52	""Actually the stack effect is @code{ r0 ... ru u -- r0 ... ru r0 }.""
2244 :	anton	1.11	r = fp[u+1]; /* +1, because update of fp happens before this fragment */
2245 :			:
2246 :			floats fp@ + f@ ;
2247 :
2248 :	pazsan	1.15	\+
2249 :			\+
2250 :	anton	1.1
2251 :	pazsan	1.15	\+OS
2252 :	anton	1.1
2253 :	pazsan	1.110	\g syslib
2254 :
2255 :	pazsan	1.131	open-lib ( c_addr1 u1 -- u2 ) gforth open_lib
2256 :			#if defined(HAVE_LIBDL) \|\| defined(HAVE_DLOPEN)
2257 :			#ifndef RTLD_GLOBAL
2258 :			#define RTLD_GLOBAL 0
2259 :			#endif
2260 :			u2=(UCell) dlopen(cstr(c_addr1, u1, 1), RTLD_GLOBAL \| RTLD_LAZY);
2261 :			#else
2262 :			# ifdef _WIN32
2263 :			u2 = (Cell) GetModuleHandle(cstr(c_addr1, u1, 1));
2264 :			# else
2265 :			#warning Define open-lib!
2266 :			u2 = 0;
2267 :			# endif
2268 :			#endif
2269 :
2270 :			lib-sym ( c_addr1 u1 u2 -- u3 ) gforth lib_sym
2271 :			#if defined(HAVE_LIBDL) \|\| defined(HAVE_DLOPEN)
2272 :			u3 = (UCell) dlsym((void*)u2,cstr(c_addr1, u1, 1));
2273 :			#else
2274 :			# ifdef _WIN32
2275 :			u3 = (Cell) GetProcAddress((HMODULE)u2, cstr(c_addr1, u1, 1));
2276 :			# else
2277 :			#warning Define lib-sym!
2278 :			u3 = 0;
2279 :			# endif
2280 :			#endif
2281 :
2282 :	pazsan	1.142	wcall ( u -- ) gforth
2283 :			IF_fpTOS(fp[0]=fpTOS);
2284 :			FP=fp;
2285 :			sp=(Cell)(SYSCALL(Cell()(Cell , void *))u)(sp, &FP);
2286 :			fp=FP;
2287 :			IF_spTOS(spTOS=sp[0];)
2288 :			IF_fpTOS(fpTOS=fp[0]);
2289 :
2290 :	pazsan	1.131	\+FFCALL
2291 :
2292 :	pazsan	1.136	av-start-void ( c_addr -- ) gforth av_start_void
2293 :	pazsan	1.131	av_start_void(alist, c_addr);
2294 :
2295 :	pazsan	1.136	av-start-int ( c_addr -- ) gforth av_start_int
2296 :	pazsan	1.131	av_start_int(alist, c_addr, &irv);
2297 :
2298 :	pazsan	1.136	av-start-float ( c_addr -- ) gforth av_start_float
2299 :	pazsan	1.131	av_start_float(alist, c_addr, &frv);
2300 :
2301 :	pazsan	1.136	av-start-double ( c_addr -- ) gforth av_start_double
2302 :	pazsan	1.131	av_start_double(alist, c_addr, &drv);
2303 :
2304 :	pazsan	1.136	av-start-longlong ( c_addr -- ) gforth av_start_longlong
2305 :	pazsan	1.131	av_start_longlong(alist, c_addr, &llrv);
2306 :
2307 :	pazsan	1.136	av-start-ptr ( c_addr -- ) gforth av_start_ptr
2308 :	pazsan	1.131	av_start_ptr(alist, c_addr, void*, &prv);
2309 :
2310 :			av-int ( w -- ) gforth av_int
2311 :			av_int(alist, w);
2312 :
2313 :	pazsan	1.136	av-float ( r -- ) gforth av_float
2314 :	pazsan	1.131	av_float(alist, r);
2315 :
2316 :	pazsan	1.136	av-double ( r -- ) gforth av_double
2317 :	pazsan	1.131	av_double(alist, r);
2318 :
2319 :	pazsan	1.136	av-longlong ( d -- ) gforth av_longlong
2320 :	pazsan	1.131	av_longlong(alist, d);
2321 :
2322 :	pazsan	1.136	av-ptr ( c_addr -- ) gforth av_ptr
2323 :	pazsan	1.131	av_ptr(alist, void*, c_addr);
2324 :
2325 :	pazsan	1.136	av-int-r ( R:w -- ) gforth av_int_r
2326 :			av_int(alist, w);
2327 :
2328 :			av-float-r ( -- ) gforth av_float_r
2329 :			float r = (Float)lp;
2330 :			lp += sizeof(Float);
2331 :			av_float(alist, r);
2332 :
2333 :			av-double-r ( -- ) gforth av_double_r
2334 :			double r = (Float)lp;
2335 :			lp += sizeof(Float);
2336 :			av_double(alist, r);
2337 :
2338 :			av-longlong-r ( R:d -- ) gforth av_longlong_r
2339 :			av_longlong(alist, d);
2340 :
2341 :			av-ptr-r ( R:c_addr -- ) gforth av_ptr_r
2342 :			av_ptr(alist, void*, c_addr);
2343 :
2344 :			av-call-void ( -- ) gforth av_call_void
2345 :	pazsan	1.131	SAVE_REGS
2346 :			av_call(alist);
2347 :			REST_REGS
2348 :
2349 :	pazsan	1.136	av-call-int ( -- w ) gforth av_call_int
2350 :	pazsan	1.131	SAVE_REGS
2351 :			av_call(alist);
2352 :	pazsan	1.134	REST_REGS
2353 :	pazsan	1.131	w = irv;
2354 :
2355 :	pazsan	1.136	av-call-float ( -- r ) gforth av_call_float
2356 :	pazsan	1.131	SAVE_REGS
2357 :			av_call(alist);
2358 :			REST_REGS
2359 :			r = frv;
2360 :
2361 :	pazsan	1.136	av-call-double ( -- r ) gforth av_call_double
2362 :	pazsan	1.131	SAVE_REGS
2363 :			av_call(alist);
2364 :			REST_REGS
2365 :			r = drv;
2366 :
2367 :	pazsan	1.136	av-call-longlong ( -- d ) gforth av_call_longlong
2368 :	pazsan	1.131	SAVE_REGS
2369 :			av_call(alist);
2370 :			REST_REGS
2371 :			d = llrv;
2372 :
2373 :	pazsan	1.136	av-call-ptr ( -- c_addr ) gforth av_call_ptr
2374 :	pazsan	1.131	SAVE_REGS
2375 :			av_call(alist);
2376 :			REST_REGS
2377 :			c_addr = prv;
2378 :
2379 :	pazsan	1.135	alloc-callback ( a_ip -- c_addr ) gforth alloc_callback
2380 :			c_addr = (char )alloc_callback(engine_callback, (Xt )a_ip);
2381 :	pazsan	1.131
2382 :	pazsan	1.135	va-start-void ( -- ) gforth va_start_void
2383 :			va_start_void(clist);
2384 :	pazsan	1.131
2385 :	pazsan	1.135	va-start-int ( -- ) gforth va_start_int
2386 :			va_start_int(clist);
2387 :	pazsan	1.131
2388 :	pazsan	1.135	va-start-longlong ( -- ) gforth va_start_longlong
2389 :			va_start_longlong(clist);
2390 :	pazsan	1.131
2391 :	pazsan	1.135	va-start-ptr ( -- ) gforth va_start_ptr
2392 :			va_start_ptr(clist, (char *));
2393 :	pazsan	1.131
2394 :	pazsan	1.135	va-start-float ( -- ) gforth va_start_float
2395 :			va_start_float(clist);
2396 :
2397 :			va-start-double ( -- ) gforth va_start_double
2398 :			va_start_double(clist);
2399 :
2400 :			va-arg-int ( -- w ) gforth va_arg_int
2401 :			w = va_arg_int(clist);
2402 :
2403 :			va-arg-longlong ( -- d ) gforth va_arg_longlong
2404 :			d = va_arg_longlong(clist);
2405 :
2406 :			va-arg-ptr ( -- c_addr ) gforth va_arg_ptr
2407 :			c_addr = (char )va_arg_ptr(clist,char);
2408 :
2409 :			va-arg-float ( -- r ) gforth va_arg_float
2410 :			r = va_arg_float(clist);
2411 :
2412 :			va-arg-double ( -- r ) gforth va_arg_double
2413 :			r = va_arg_double(clist);
2414 :	pazsan	1.131
2415 :			va-return-void ( -- ) gforth va_return_void
2416 :			va_return_void(clist);
2417 :			return 0;
2418 :
2419 :			va-return-int ( w -- ) gforth va_return_int
2420 :			va_return_int(clist, w);
2421 :			return 0;
2422 :
2423 :			va-return-ptr ( c_addr -- ) gforth va_return_ptr
2424 :			va_return_ptr(clist, void *, c_addr);
2425 :			return 0;
2426 :
2427 :			va-return-longlong ( d -- ) gforth va_return_longlong
2428 :			va_return_longlong(clist, d);
2429 :			return 0;
2430 :
2431 :			va-return-float ( r -- ) gforth va_return_float
2432 :			va_return_float(clist, r);
2433 :			return 0;
2434 :
2435 :			va-return-double ( r -- ) gforth va_return_double
2436 :			va_return_double(clist, r);
2437 :			return 0;
2438 :
2439 :	pazsan	1.142	\+
2440 :
2441 :			\+OLDCALL
2442 :	pazsan	1.131
2443 :	anton	1.1	define(`uploop',
2444 :			`pushdef(`$1', `$2')_uploop(`$1', `$2', `$3', `$4', `$5')`'popdef(`$1')')
2445 :			define(`_uploop',
2446 :			`ifelse($1, `$3', `$5',
2447 :			`$4`'define(`$1', incr($1))_uploop(`$1', `$2', `$3', `$4', `$5')')')
2448 :			\ argflist(argnum): Forth argument list
2449 :			define(argflist,
2450 :			`ifelse($1, 0, `',
2451 :			`uploop(`_i', 1, $1, `format(`u%d ', _i)', `format(`u%d ', _i)')')')
2452 :			\ argdlist(argnum): declare C's arguments
2453 :			define(argdlist,
2454 :			`ifelse($1, 0, `',
2455 :			`uploop(`_i', 1, $1, `Cell, ', `Cell')')')
2456 :			\ argclist(argnum): pass C's arguments
2457 :			define(argclist,
2458 :			`ifelse($1, 0, `',
2459 :			`uploop(`_i', 1, $1, `format(`u%d, ', _i)', `format(`u%d', _i)')')')
2460 :			\ icall(argnum)
2461 :			define(icall,
2462 :	anton	1.47	`icall$1 ( argflist($1)u -- uret ) gforth
2463 :	pazsan	1.9	uret = (SYSCALL(Cell(*)(argdlist($1)))u)(argclist($1));
2464 :	anton	1.1
2465 :			')
2466 :			define(fcall,
2467 :	anton	1.47	`fcall$1 ( argflist($1)u -- rret ) gforth
2468 :	pazsan	1.9	rret = (SYSCALL(Float(*)(argdlist($1)))u)(argclist($1));
2469 :	anton	1.1
2470 :			')
2471 :
2472 :	pazsan	1.46	\ close ' to keep fontify happy
2473 :	anton	1.1
2474 :			uploop(i, 0, 7, `icall(i)')
2475 :			icall(20)
2476 :			uploop(i, 0, 7, `fcall(i)')
2477 :			fcall(20)
2478 :
2479 :	pazsan	1.15	\+
2480 :	pazsan	1.131	\+
2481 :	anton	1.1
2482 :	pazsan	1.142	\g peephole
2483 :	pazsan	1.46
2484 :	pazsan	1.112	\+peephole
2485 :
2486 :	anton	1.119	compile-prim1 ( a_prim -- ) gforth compile_prim1
2487 :			""compile prim (incl. immargs) at @var{a_prim}""
2488 :			compile_prim1(a_prim);
2489 :
2490 :			finish-code ( -- ) gforth finish_code
2491 :			""Perform delayed steps in code generation (branch resolution, I-cache
2492 :			flushing).""
2493 :			finish_code();
2494 :
2495 :			forget-dyncode ( c_code -- f ) gforth-internal forget_dyncode
2496 :			f = forget_dyncode(c_code);
2497 :
2498 :			decompile-prim ( a_code -- a_prim ) gforth-internal decompile_prim
2499 :			""a_prim is the code address of the primitive that has been
2500 :			compile_prim1ed to a_code""
2501 :	anton	1.121	a_prim = (Cell *)decompile_code((Label)a_code);
2502 :	anton	1.119
2503 :	pazsan	1.112	\ set-next-code and call2 do not appear in images and can be
2504 :			\ renumbered arbitrarily
2505 :	pazsan	1.46
2506 :	pazsan	1.112	set-next-code ( #w -- ) gforth set_next_code
2507 :			#ifdef NO_IP
2508 :			next_code = (Label)w;
2509 :			#endif
2510 :	jwilke	1.34
2511 :	pazsan	1.112	call2 ( #a_callee #a_ret_addr -- R:a_ret_addr ) gforth
2512 :			/* call with explicit return address */
2513 :			#ifdef NO_IP
2514 :			INST_TAIL;
2515 :			JUMP(a_callee);
2516 :	anton	1.45	#else
2517 :	pazsan	1.112	assert(0);
2518 :	anton	1.45	#endif
2519 :	pazsan	1.131
2520 :			tag-offsets ( -- a_addr ) gforth tag_offsets
2521 :			extern Cell groups[32];
2522 :			a_addr = groups;
2523 :	anton	1.51
2524 :	pazsan	1.54	\+
2525 :	anton	1.128
2526 :			\g static_super
2527 :
2528 :	anton	1.130	\C #if !defined(GFORTH_DEBUGGING) && !defined(INDIRECT_THREADED) && !defined(DOUBLY_INDIRECT) && !defined(VM_PROFILING)
2529 :
2530 :	pazsan	1.112	include(peeprules.vmg)
2531 :	anton	1.130
2532 :			\C #endif
2533 :	pazsan	1.54
2534 :	pazsan	1.112	\g end

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gforth: gforth/prim

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