Commit | Line | Data |
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a5bbb22e | 1 | /* Copyright (C) 2001,2008,2009,2010 Free Software Foundation, Inc. |
a98cef7e | 2 | * |
53e28ed9 | 3 | * This library is free software; you can redistribute it and/or |
53befeb7 NJ |
4 | * modify it under the terms of the GNU Lesser General Public License |
5 | * as published by the Free Software Foundation; either version 3 of | |
6 | * the License, or (at your option) any later version. | |
a98cef7e | 7 | * |
53befeb7 NJ |
8 | * This library is distributed in the hope that it will be useful, but |
9 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
53e28ed9 AW |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
11 | * Lesser General Public License for more details. | |
a98cef7e | 12 | * |
53e28ed9 AW |
13 | * You should have received a copy of the GNU Lesser General Public |
14 | * License along with this library; if not, write to the Free Software | |
53befeb7 NJ |
15 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
16 | * 02110-1301 USA | |
53e28ed9 AW |
17 | */ |
18 | ||
a98cef7e KN |
19 | |
20 | /* This file is included in vm_engine.c */ | |
21 | ||
a98cef7e KN |
22 | \f |
23 | /* | |
24 | * Basic operations | |
25 | */ | |
26 | ||
53e28ed9 | 27 | VM_DEFINE_INSTRUCTION (0, nop, "nop", 0, 0, 0) |
a98cef7e KN |
28 | { |
29 | NEXT; | |
30 | } | |
31 | ||
53e28ed9 | 32 | VM_DEFINE_INSTRUCTION (1, halt, "halt", 0, 0, 0) |
a98cef7e | 33 | { |
a222b0fa | 34 | nvalues = SCM_I_INUM (*sp--); |
11ea1aba | 35 | NULLSTACK (1); |
a222b0fa | 36 | if (nvalues == 1) |
e06e857c | 37 | POP (finish_args); |
a222b0fa AW |
38 | else |
39 | { | |
40 | POP_LIST (nvalues); | |
e06e857c | 41 | POP (finish_args); |
877ffa3f | 42 | SYNC_REGISTER (); |
e06e857c | 43 | finish_args = scm_values (finish_args); |
a222b0fa AW |
44 | } |
45 | ||
1dc8f851 | 46 | { |
6c6a4439 AW |
47 | #ifdef VM_ENABLE_STACK_NULLING |
48 | SCM *old_sp = sp; | |
49 | #endif | |
1dc8f851 AW |
50 | |
51 | /* Restore registers */ | |
52 | sp = SCM_FRAME_LOWER_ADDRESS (fp) - 1; | |
6c6a4439 AW |
53 | /* Setting the ip here doesn't actually affect control flow, as the calling |
54 | code will restore its own registers, but it does help when walking the | |
55 | stack */ | |
56 | ip = SCM_FRAME_RETURN_ADDRESS (fp); | |
1dc8f851 | 57 | fp = SCM_FRAME_DYNAMIC_LINK (fp); |
6c6a4439 | 58 | NULLSTACK (old_sp - sp); |
1dc8f851 | 59 | } |
e06e857c AW |
60 | |
61 | goto vm_done; | |
a98cef7e KN |
62 | } |
63 | ||
131f7d6c | 64 | VM_DEFINE_INSTRUCTION (3, drop, "drop", 0, 1, 0) |
a98cef7e | 65 | { |
17e90c5e | 66 | DROP (); |
a98cef7e KN |
67 | NEXT; |
68 | } | |
69 | ||
d94be25f | 70 | VM_DEFINE_INSTRUCTION (4, dup, "dup", 0, 0, 1) |
26403690 | 71 | { |
f349065e KN |
72 | SCM x = *sp; |
73 | PUSH (x); | |
26403690 KN |
74 | NEXT; |
75 | } | |
76 | ||
17e90c5e KN |
77 | \f |
78 | /* | |
79 | * Object creation | |
80 | */ | |
a98cef7e | 81 | |
d94be25f | 82 | VM_DEFINE_INSTRUCTION (5, void, "void", 0, 0, 1) |
a98cef7e | 83 | { |
17e90c5e | 84 | PUSH (SCM_UNSPECIFIED); |
a98cef7e KN |
85 | NEXT; |
86 | } | |
87 | ||
d94be25f | 88 | VM_DEFINE_INSTRUCTION (6, make_true, "make-true", 0, 0, 1) |
a98cef7e | 89 | { |
17e90c5e | 90 | PUSH (SCM_BOOL_T); |
a98cef7e KN |
91 | NEXT; |
92 | } | |
93 | ||
d94be25f | 94 | VM_DEFINE_INSTRUCTION (7, make_false, "make-false", 0, 0, 1) |
a98cef7e | 95 | { |
17e90c5e | 96 | PUSH (SCM_BOOL_F); |
a98cef7e KN |
97 | NEXT; |
98 | } | |
99 | ||
ff810079 | 100 | VM_DEFINE_INSTRUCTION (8, make_nil, "make-nil", 0, 0, 1) |
4530432e DK |
101 | { |
102 | PUSH (SCM_ELISP_NIL); | |
103 | NEXT; | |
104 | } | |
105 | ||
53e28ed9 | 106 | VM_DEFINE_INSTRUCTION (9, make_eol, "make-eol", 0, 0, 1) |
a98cef7e | 107 | { |
17e90c5e | 108 | PUSH (SCM_EOL); |
a98cef7e KN |
109 | NEXT; |
110 | } | |
111 | ||
53e28ed9 | 112 | VM_DEFINE_INSTRUCTION (10, make_int8, "make-int8", 1, 0, 1) |
a98cef7e | 113 | { |
2d80426a | 114 | PUSH (SCM_I_MAKINUM ((signed char) FETCH ())); |
a98cef7e KN |
115 | NEXT; |
116 | } | |
117 | ||
53e28ed9 | 118 | VM_DEFINE_INSTRUCTION (11, make_int8_0, "make-int8:0", 0, 0, 1) |
a98cef7e | 119 | { |
238e7a11 | 120 | PUSH (SCM_INUM0); |
a98cef7e KN |
121 | NEXT; |
122 | } | |
123 | ||
53e28ed9 | 124 | VM_DEFINE_INSTRUCTION (12, make_int8_1, "make-int8:1", 0, 0, 1) |
a98cef7e | 125 | { |
238e7a11 | 126 | PUSH (SCM_I_MAKINUM (1)); |
a98cef7e KN |
127 | NEXT; |
128 | } | |
129 | ||
53e28ed9 | 130 | VM_DEFINE_INSTRUCTION (13, make_int16, "make-int16", 2, 0, 1) |
a98cef7e | 131 | { |
ea9b4b29 KN |
132 | int h = FETCH (); |
133 | int l = FETCH (); | |
2d80426a | 134 | PUSH (SCM_I_MAKINUM ((signed short) (h << 8) + l)); |
a98cef7e KN |
135 | NEXT; |
136 | } | |
137 | ||
a5cfddd5 | 138 | VM_DEFINE_INSTRUCTION (14, make_int64, "make-int64", 8, 0, 1) |
586cfdec AW |
139 | { |
140 | scm_t_uint64 v = 0; | |
141 | v += FETCH (); | |
142 | v <<= 8; v += FETCH (); | |
143 | v <<= 8; v += FETCH (); | |
144 | v <<= 8; v += FETCH (); | |
145 | v <<= 8; v += FETCH (); | |
146 | v <<= 8; v += FETCH (); | |
147 | v <<= 8; v += FETCH (); | |
148 | v <<= 8; v += FETCH (); | |
149 | PUSH (scm_from_int64 ((scm_t_int64) v)); | |
150 | NEXT; | |
151 | } | |
152 | ||
a5cfddd5 | 153 | VM_DEFINE_INSTRUCTION (15, make_uint64, "make-uint64", 8, 0, 1) |
586cfdec AW |
154 | { |
155 | scm_t_uint64 v = 0; | |
156 | v += FETCH (); | |
157 | v <<= 8; v += FETCH (); | |
158 | v <<= 8; v += FETCH (); | |
159 | v <<= 8; v += FETCH (); | |
160 | v <<= 8; v += FETCH (); | |
161 | v <<= 8; v += FETCH (); | |
162 | v <<= 8; v += FETCH (); | |
163 | v <<= 8; v += FETCH (); | |
164 | PUSH (scm_from_uint64 (v)); | |
165 | NEXT; | |
166 | } | |
167 | ||
a5cfddd5 | 168 | VM_DEFINE_INSTRUCTION (16, make_char8, "make-char8", 1, 0, 1) |
a98cef7e | 169 | { |
4c402b88 MG |
170 | scm_t_uint8 v = 0; |
171 | v = FETCH (); | |
172 | ||
173 | PUSH (SCM_MAKE_CHAR (v)); | |
174 | /* Don't simplify this to PUSH (SCM_MAKE_CHAR (FETCH ())). The | |
175 | contents of SCM_MAKE_CHAR may be evaluated more than once, | |
176 | resulting in a double fetch. */ | |
a98cef7e KN |
177 | NEXT; |
178 | } | |
179 | ||
ff810079 | 180 | VM_DEFINE_INSTRUCTION (17, make_char32, "make-char32", 4, 0, 1) |
904a78f1 MG |
181 | { |
182 | scm_t_wchar v = 0; | |
183 | v += FETCH (); | |
184 | v <<= 8; v += FETCH (); | |
185 | v <<= 8; v += FETCH (); | |
186 | v <<= 8; v += FETCH (); | |
187 | PUSH (SCM_MAKE_CHAR (v)); | |
188 | NEXT; | |
189 | } | |
190 | ||
191 | ||
192 | ||
ff810079 | 193 | VM_DEFINE_INSTRUCTION (18, list, "list", 2, -1, 1) |
cb4cca12 | 194 | { |
23b587b0 LC |
195 | unsigned h = FETCH (); |
196 | unsigned l = FETCH (); | |
197 | unsigned len = ((h << 8) + l); | |
198 | POP_LIST (len); | |
cb4cca12 KN |
199 | NEXT; |
200 | } | |
201 | ||
ff810079 | 202 | VM_DEFINE_INSTRUCTION (19, vector, "vector", 2, -1, 1) |
cb4cca12 | 203 | { |
23b587b0 LC |
204 | unsigned h = FETCH (); |
205 | unsigned l = FETCH (); | |
206 | unsigned len = ((h << 8) + l); | |
5338b62b AW |
207 | SCM vect; |
208 | ||
877ffa3f | 209 | SYNC_REGISTER (); |
5338b62b AW |
210 | sp++; sp -= len; |
211 | CHECK_UNDERFLOW (); | |
212 | vect = scm_make_vector (scm_from_uint (len), SCM_BOOL_F); | |
213 | memcpy (SCM_I_VECTOR_WELTS(vect), sp, sizeof(SCM) * len); | |
214 | NULLSTACK (len); | |
215 | *sp = vect; | |
216 | ||
cb4cca12 KN |
217 | NEXT; |
218 | } | |
219 | ||
a98cef7e KN |
220 | \f |
221 | /* | |
17e90c5e | 222 | * Variable access |
a98cef7e KN |
223 | */ |
224 | ||
17e90c5e KN |
225 | #define OBJECT_REF(i) objects[i] |
226 | #define OBJECT_SET(i,o) objects[i] = o | |
a98cef7e | 227 | |
af988bbf KN |
228 | #define LOCAL_REF(i) SCM_FRAME_VARIABLE (fp, i) |
229 | #define LOCAL_SET(i,o) SCM_FRAME_VARIABLE (fp, i) = o | |
a98cef7e | 230 | |
2d80426a LC |
231 | /* For the variable operations, we _must_ obviously avoid function calls to |
232 | `scm_variable_ref ()', `scm_variable_bound_p ()' and friends which do | |
233 | nothing more than the corresponding macros. */ | |
234 | #define VARIABLE_REF(v) SCM_VARIABLE_REF (v) | |
235 | #define VARIABLE_SET(v,o) SCM_VARIABLE_SET (v, o) | |
236 | #define VARIABLE_BOUNDP(v) (VARIABLE_REF (v) != SCM_UNDEFINED) | |
a98cef7e | 237 | |
6f16379e | 238 | #define FREE_VARIABLE_REF(i) SCM_PROGRAM_FREE_VARIABLE_REF (program, i) |
8d90b356 | 239 | |
17e90c5e | 240 | /* ref */ |
a98cef7e | 241 | |
ff810079 | 242 | VM_DEFINE_INSTRUCTION (20, object_ref, "object-ref", 1, 0, 1) |
a98cef7e | 243 | { |
a52b2d3d | 244 | register unsigned objnum = FETCH (); |
0b5f0e49 LC |
245 | CHECK_OBJECT (objnum); |
246 | PUSH (OBJECT_REF (objnum)); | |
17e90c5e | 247 | NEXT; |
a98cef7e KN |
248 | } |
249 | ||
a5cfddd5 | 250 | /* FIXME: necessary? elt 255 of the vector could be a vector... */ |
ff810079 | 251 | VM_DEFINE_INSTRUCTION (21, long_object_ref, "long-object-ref", 2, 0, 1) |
a5cfddd5 AW |
252 | { |
253 | unsigned int objnum = FETCH (); | |
254 | objnum <<= 8; | |
255 | objnum += FETCH (); | |
256 | CHECK_OBJECT (objnum); | |
257 | PUSH (OBJECT_REF (objnum)); | |
258 | NEXT; | |
259 | } | |
260 | ||
ff810079 | 261 | VM_DEFINE_INSTRUCTION (22, local_ref, "local-ref", 1, 0, 1) |
a98cef7e | 262 | { |
17e90c5e | 263 | PUSH (LOCAL_REF (FETCH ())); |
a1a482e0 | 264 | ASSERT_BOUND (*sp); |
17e90c5e | 265 | NEXT; |
a98cef7e KN |
266 | } |
267 | ||
ff810079 | 268 | VM_DEFINE_INSTRUCTION (23, long_local_ref, "long-local-ref", 2, 0, 1) |
a98cef7e | 269 | { |
80545853 AW |
270 | unsigned int i = FETCH (); |
271 | i <<= 8; | |
272 | i += FETCH (); | |
28b119ee | 273 | PUSH (LOCAL_REF (i)); |
a1a482e0 | 274 | ASSERT_BOUND (*sp); |
a98cef7e KN |
275 | NEXT; |
276 | } | |
277 | ||
e4257331 | 278 | VM_DEFINE_INSTRUCTION (24, local_bound, "local-bound?", 1, 0, 1) |
3092a14d AW |
279 | { |
280 | if (LOCAL_REF (FETCH ()) == SCM_UNDEFINED) | |
281 | PUSH (SCM_BOOL_F); | |
282 | else | |
283 | PUSH (SCM_BOOL_T); | |
284 | NEXT; | |
285 | } | |
286 | ||
e4257331 | 287 | VM_DEFINE_INSTRUCTION (25, long_local_bound, "long-local-bound?", 2, 0, 1) |
3092a14d AW |
288 | { |
289 | unsigned int i = FETCH (); | |
290 | i <<= 8; | |
291 | i += FETCH (); | |
292 | if (LOCAL_REF (i) == SCM_UNDEFINED) | |
293 | PUSH (SCM_BOOL_F); | |
294 | else | |
295 | PUSH (SCM_BOOL_T); | |
296 | NEXT; | |
297 | } | |
298 | ||
e4257331 | 299 | VM_DEFINE_INSTRUCTION (26, variable_ref, "variable-ref", 0, 1, 1) |
a98cef7e | 300 | { |
17e90c5e | 301 | SCM x = *sp; |
238e7a11 | 302 | |
1af77230 | 303 | if (SCM_UNLIKELY (!VARIABLE_BOUNDP (x))) |
17e90c5e | 304 | { |
1af77230 LC |
305 | SCM var_name; |
306 | ||
307 | /* Attempt to provide the variable name in the error message. */ | |
308 | var_name = scm_module_reverse_lookup (scm_current_module (), x); | |
309 | finish_args = scm_list_1 (scm_is_true (var_name) ? var_name : x); | |
17e90c5e KN |
310 | goto vm_error_unbound; |
311 | } | |
238e7a11 LC |
312 | else |
313 | { | |
2d80426a | 314 | SCM o = VARIABLE_REF (x); |
238e7a11 LC |
315 | *sp = o; |
316 | } | |
317 | ||
a98cef7e KN |
318 | NEXT; |
319 | } | |
320 | ||
05156612 | 321 | VM_DEFINE_INSTRUCTION (27, variable_bound, "variable-bound?", 0, 1, 1) |
3092a14d AW |
322 | { |
323 | if (VARIABLE_BOUNDP (*sp)) | |
324 | *sp = SCM_BOOL_T; | |
325 | else | |
326 | *sp = SCM_BOOL_F; | |
327 | NEXT; | |
328 | } | |
329 | ||
e4257331 | 330 | VM_DEFINE_INSTRUCTION (28, toplevel_ref, "toplevel-ref", 1, 0, 1) |
9cc649b8 | 331 | { |
6297d229 | 332 | unsigned objnum = FETCH (); |
fd358575 | 333 | SCM what; |
9cc649b8 | 334 | CHECK_OBJECT (objnum); |
fd358575 | 335 | what = OBJECT_REF (objnum); |
9cc649b8 | 336 | |
fd358575 | 337 | if (!SCM_VARIABLEP (what)) |
9cc649b8 | 338 | { |
d0168f3d | 339 | SYNC_REGISTER (); |
b7393ea1 | 340 | what = resolve_variable (what, scm_program_module (program)); |
fd358575 | 341 | if (!VARIABLE_BOUNDP (what)) |
9cc649b8 | 342 | { |
da8b4747 | 343 | finish_args = scm_list_1 (what); |
9cc649b8 AW |
344 | goto vm_error_unbound; |
345 | } | |
fd358575 | 346 | OBJECT_SET (objnum, what); |
9cc649b8 AW |
347 | } |
348 | ||
fd358575 | 349 | PUSH (VARIABLE_REF (what)); |
9cc649b8 AW |
350 | NEXT; |
351 | } | |
352 | ||
e4257331 | 353 | VM_DEFINE_INSTRUCTION (29, long_toplevel_ref, "long-toplevel-ref", 2, 0, 1) |
a5cfddd5 AW |
354 | { |
355 | SCM what; | |
356 | unsigned int objnum = FETCH (); | |
357 | objnum <<= 8; | |
358 | objnum += FETCH (); | |
359 | CHECK_OBJECT (objnum); | |
360 | what = OBJECT_REF (objnum); | |
361 | ||
362 | if (!SCM_VARIABLEP (what)) | |
363 | { | |
364 | SYNC_REGISTER (); | |
365 | what = resolve_variable (what, scm_program_module (program)); | |
366 | if (!VARIABLE_BOUNDP (what)) | |
367 | { | |
368 | finish_args = scm_list_1 (what); | |
369 | goto vm_error_unbound; | |
370 | } | |
371 | OBJECT_SET (objnum, what); | |
372 | } | |
373 | ||
374 | PUSH (VARIABLE_REF (what)); | |
375 | NEXT; | |
376 | } | |
377 | ||
17e90c5e KN |
378 | /* set */ |
379 | ||
e4257331 | 380 | VM_DEFINE_INSTRUCTION (30, local_set, "local-set", 1, 1, 0) |
a98cef7e | 381 | { |
17e90c5e KN |
382 | LOCAL_SET (FETCH (), *sp); |
383 | DROP (); | |
a98cef7e KN |
384 | NEXT; |
385 | } | |
386 | ||
e4257331 | 387 | VM_DEFINE_INSTRUCTION (31, long_local_set, "long-local-set", 2, 1, 0) |
a98cef7e | 388 | { |
80545853 AW |
389 | unsigned int i = FETCH (); |
390 | i <<= 8; | |
391 | i += FETCH (); | |
392 | LOCAL_SET (i, *sp); | |
17e90c5e | 393 | DROP (); |
a98cef7e KN |
394 | NEXT; |
395 | } | |
396 | ||
e4257331 | 397 | VM_DEFINE_INSTRUCTION (32, variable_set, "variable-set", 0, 2, 0) |
a98cef7e | 398 | { |
2d80426a | 399 | VARIABLE_SET (sp[0], sp[-1]); |
11ea1aba | 400 | DROPN (2); |
a98cef7e KN |
401 | NEXT; |
402 | } | |
403 | ||
e4257331 | 404 | VM_DEFINE_INSTRUCTION (33, toplevel_set, "toplevel-set", 1, 1, 0) |
9cc649b8 | 405 | { |
6297d229 | 406 | unsigned objnum = FETCH (); |
fd358575 | 407 | SCM what; |
9cc649b8 | 408 | CHECK_OBJECT (objnum); |
fd358575 | 409 | what = OBJECT_REF (objnum); |
9cc649b8 | 410 | |
fd358575 | 411 | if (!SCM_VARIABLEP (what)) |
9cc649b8 | 412 | { |
6287726a | 413 | SYNC_BEFORE_GC (); |
b7393ea1 | 414 | what = resolve_variable (what, scm_program_module (program)); |
fd358575 | 415 | OBJECT_SET (objnum, what); |
9cc649b8 AW |
416 | } |
417 | ||
fd358575 | 418 | VARIABLE_SET (what, *sp); |
9cc649b8 AW |
419 | DROP (); |
420 | NEXT; | |
421 | } | |
422 | ||
e4257331 | 423 | VM_DEFINE_INSTRUCTION (34, long_toplevel_set, "long-toplevel-set", 2, 1, 0) |
a5cfddd5 AW |
424 | { |
425 | SCM what; | |
426 | unsigned int objnum = FETCH (); | |
427 | objnum <<= 8; | |
428 | objnum += FETCH (); | |
429 | CHECK_OBJECT (objnum); | |
430 | what = OBJECT_REF (objnum); | |
431 | ||
432 | if (!SCM_VARIABLEP (what)) | |
433 | { | |
434 | SYNC_BEFORE_GC (); | |
435 | what = resolve_variable (what, scm_program_module (program)); | |
436 | OBJECT_SET (objnum, what); | |
437 | } | |
438 | ||
439 | VARIABLE_SET (what, *sp); | |
440 | DROP (); | |
441 | NEXT; | |
442 | } | |
443 | ||
a98cef7e KN |
444 | \f |
445 | /* | |
446 | * branch and jump | |
447 | */ | |
448 | ||
97fcf583 | 449 | /* offset must be at least 24 bits wide, and signed */ |
efbd5892 | 450 | #define FETCH_OFFSET(offset) \ |
17e90c5e | 451 | { \ |
97fcf583 AW |
452 | offset = FETCH () << 16; \ |
453 | offset += FETCH () << 8; \ | |
454 | offset += FETCH (); \ | |
455 | offset -= (offset & (1<<23)) << 1; \ | |
efbd5892 AW |
456 | } |
457 | ||
458 | #define BR(p) \ | |
459 | { \ | |
97fcf583 | 460 | scm_t_int32 offset; \ |
efbd5892 | 461 | FETCH_OFFSET (offset); \ |
17e90c5e | 462 | if (p) \ |
97fcf583 | 463 | ip += offset; \ |
5b09b37f AW |
464 | if (offset < 0) \ |
465 | VM_HANDLE_INTERRUPTS; \ | |
11ea1aba | 466 | NULLSTACK (1); \ |
17e90c5e KN |
467 | DROP (); \ |
468 | NEXT; \ | |
469 | } | |
470 | ||
e4257331 | 471 | VM_DEFINE_INSTRUCTION (35, br, "br", 3, 0, 0) |
41f248a8 | 472 | { |
97fcf583 | 473 | scm_t_int32 offset; |
e5dc27b8 | 474 | FETCH_OFFSET (offset); |
97fcf583 | 475 | ip += offset; |
5b09b37f AW |
476 | if (offset < 0) |
477 | VM_HANDLE_INTERRUPTS; | |
41f248a8 KN |
478 | NEXT; |
479 | } | |
480 | ||
e4257331 | 481 | VM_DEFINE_INSTRUCTION (36, br_if, "br-if", 3, 0, 0) |
a98cef7e | 482 | { |
d38b431a | 483 | BR (scm_is_true (*sp)); |
a98cef7e KN |
484 | } |
485 | ||
e4257331 | 486 | VM_DEFINE_INSTRUCTION (37, br_if_not, "br-if-not", 3, 0, 0) |
a98cef7e | 487 | { |
d38b431a | 488 | BR (scm_is_false (*sp)); |
a98cef7e KN |
489 | } |
490 | ||
e4257331 | 491 | VM_DEFINE_INSTRUCTION (38, br_if_eq, "br-if-eq", 3, 0, 0) |
a98cef7e | 492 | { |
2c0f99a2 | 493 | sp--; /* underflow? */ |
9bd48cb1 | 494 | BR (scm_is_eq (sp[0], sp[1])); |
a98cef7e KN |
495 | } |
496 | ||
e4257331 | 497 | VM_DEFINE_INSTRUCTION (39, br_if_not_eq, "br-if-not-eq", 3, 0, 0) |
a98cef7e | 498 | { |
2c0f99a2 | 499 | sp--; /* underflow? */ |
9bd48cb1 | 500 | BR (!scm_is_eq (sp[0], sp[1])); |
17e90c5e KN |
501 | } |
502 | ||
e4257331 | 503 | VM_DEFINE_INSTRUCTION (40, br_if_null, "br-if-null", 3, 0, 0) |
17e90c5e | 504 | { |
2533f10b | 505 | BR (scm_is_null (*sp)); |
17e90c5e KN |
506 | } |
507 | ||
e4257331 | 508 | VM_DEFINE_INSTRUCTION (41, br_if_not_null, "br-if-not-null", 3, 0, 0) |
17e90c5e | 509 | { |
2533f10b | 510 | BR (!scm_is_null (*sp)); |
a98cef7e KN |
511 | } |
512 | ||
a98cef7e KN |
513 | \f |
514 | /* | |
515 | * Subprogram call | |
516 | */ | |
517 | ||
e4257331 | 518 | VM_DEFINE_INSTRUCTION (42, br_if_nargs_ne, "br-if-nargs-ne", 5, 0, 0) |
7e01997e AW |
519 | { |
520 | scm_t_ptrdiff n; | |
7f991c7d | 521 | scm_t_int32 offset; |
7e01997e AW |
522 | n = FETCH () << 8; |
523 | n += FETCH (); | |
7e01997e AW |
524 | FETCH_OFFSET (offset); |
525 | if (sp - (fp - 1) != n) | |
526 | ip += offset; | |
527 | NEXT; | |
528 | } | |
529 | ||
e4257331 | 530 | VM_DEFINE_INSTRUCTION (43, br_if_nargs_lt, "br-if-nargs-lt", 5, 0, 0) |
7e01997e AW |
531 | { |
532 | scm_t_ptrdiff n; | |
7f991c7d | 533 | scm_t_int32 offset; |
7e01997e AW |
534 | n = FETCH () << 8; |
535 | n += FETCH (); | |
7e01997e AW |
536 | FETCH_OFFSET (offset); |
537 | if (sp - (fp - 1) < n) | |
538 | ip += offset; | |
539 | NEXT; | |
540 | } | |
541 | ||
e4257331 | 542 | VM_DEFINE_INSTRUCTION (44, br_if_nargs_gt, "br-if-nargs-gt", 5, 0, 0) |
7e01997e AW |
543 | { |
544 | scm_t_ptrdiff n; | |
ff74e44e AW |
545 | scm_t_int32 offset; |
546 | ||
7e01997e AW |
547 | n = FETCH () << 8; |
548 | n += FETCH (); | |
7e01997e AW |
549 | FETCH_OFFSET (offset); |
550 | if (sp - (fp - 1) > n) | |
551 | ip += offset; | |
552 | NEXT; | |
553 | } | |
554 | ||
e4257331 | 555 | VM_DEFINE_INSTRUCTION (45, assert_nargs_ee, "assert-nargs-ee", 2, 0, 0) |
1e2a8c26 AW |
556 | { |
557 | scm_t_ptrdiff n; | |
558 | n = FETCH () << 8; | |
559 | n += FETCH (); | |
a6f15a1e | 560 | if (sp - (fp - 1) != n) |
1e2a8c26 | 561 | goto vm_error_wrong_num_args; |
1e2a8c26 AW |
562 | NEXT; |
563 | } | |
564 | ||
e4257331 | 565 | VM_DEFINE_INSTRUCTION (46, assert_nargs_ge, "assert-nargs-ge", 2, 0, 0) |
1e2a8c26 AW |
566 | { |
567 | scm_t_ptrdiff n; | |
568 | n = FETCH () << 8; | |
569 | n += FETCH (); | |
a6f15a1e | 570 | if (sp - (fp - 1) < n) |
1e2a8c26 | 571 | goto vm_error_wrong_num_args; |
1e2a8c26 AW |
572 | NEXT; |
573 | } | |
574 | ||
e4257331 | 575 | VM_DEFINE_INSTRUCTION (47, bind_optionals, "bind-optionals", 2, -1, -1) |
7e01997e AW |
576 | { |
577 | scm_t_ptrdiff n; | |
578 | n = FETCH () << 8; | |
579 | n += FETCH (); | |
580 | while (sp - (fp - 1) < n) | |
581 | PUSH (SCM_UNDEFINED); | |
582 | NEXT; | |
583 | } | |
584 | ||
e4257331 | 585 | VM_DEFINE_INSTRUCTION (48, bind_optionals_shuffle, "bind-optionals/shuffle", 6, -1, -1) |
7e01997e AW |
586 | { |
587 | SCM *walk; | |
588 | scm_t_ptrdiff nreq, nreq_and_opt, ntotal; | |
589 | nreq = FETCH () << 8; | |
590 | nreq += FETCH (); | |
591 | nreq_and_opt = FETCH () << 8; | |
592 | nreq_and_opt += FETCH (); | |
593 | ntotal = FETCH () << 8; | |
594 | ntotal += FETCH (); | |
595 | ||
596 | /* look in optionals for first keyword or last positional */ | |
597 | /* starting after the last required positional arg */ | |
3092a14d | 598 | walk = fp + nreq; |
7e01997e AW |
599 | while (/* while we have args */ |
600 | walk <= sp | |
601 | /* and we still have positionals to fill */ | |
3092a14d | 602 | && walk - fp < nreq_and_opt |
7e01997e AW |
603 | /* and we haven't reached a keyword yet */ |
604 | && !scm_is_keyword (*walk)) | |
605 | /* bind this optional arg (by leaving it in place) */ | |
606 | walk++; | |
607 | /* now shuffle up, from walk to ntotal */ | |
608 | { | |
3092a14d | 609 | scm_t_ptrdiff nshuf = sp - walk + 1, i; |
7e01997e AW |
610 | sp = (fp - 1) + ntotal + nshuf; |
611 | CHECK_OVERFLOW (); | |
3092a14d AW |
612 | for (i = 0; i < nshuf; i++) |
613 | sp[-i] = walk[nshuf-i-1]; | |
7e01997e AW |
614 | } |
615 | /* and fill optionals & keyword args with SCM_UNDEFINED */ | |
3092a14d | 616 | while (walk <= (fp - 1) + ntotal) |
7e01997e AW |
617 | *walk++ = SCM_UNDEFINED; |
618 | ||
619 | NEXT; | |
620 | } | |
621 | ||
ff74e44e AW |
622 | /* Flags that determine whether other keywords are allowed, and whether a |
623 | rest argument is expected. These values must match those used by the | |
624 | glil->assembly compiler. */ | |
625 | #define F_ALLOW_OTHER_KEYS 1 | |
626 | #define F_REST 2 | |
627 | ||
e4257331 | 628 | VM_DEFINE_INSTRUCTION (49, bind_kwargs, "bind-kwargs", 5, 0, 0) |
7e01997e AW |
629 | { |
630 | scm_t_uint16 idx; | |
631 | scm_t_ptrdiff nkw; | |
ff74e44e | 632 | int kw_and_rest_flags; |
7e01997e AW |
633 | SCM kw; |
634 | idx = FETCH () << 8; | |
635 | idx += FETCH (); | |
ff74e44e | 636 | /* XXX: We don't actually use NKW. */ |
7e01997e AW |
637 | nkw = FETCH () << 8; |
638 | nkw += FETCH (); | |
ff74e44e | 639 | kw_and_rest_flags = FETCH (); |
7e01997e | 640 | |
ff74e44e AW |
641 | if (!(kw_and_rest_flags & F_REST) |
642 | && ((sp - (fp - 1) - nkw) % 2)) | |
7e01997e AW |
643 | goto vm_error_kwargs_length_not_even; |
644 | ||
645 | CHECK_OBJECT (idx); | |
646 | kw = OBJECT_REF (idx); | |
ff74e44e AW |
647 | |
648 | /* Switch NKW to be a negative index below SP. */ | |
649 | for (nkw = -(sp - (fp - 1) - nkw) + 1; nkw < 0; nkw++) | |
7e01997e AW |
650 | { |
651 | SCM walk; | |
ff74e44e AW |
652 | |
653 | if (scm_is_keyword (sp[nkw])) | |
654 | { | |
655 | for (walk = kw; scm_is_pair (walk); walk = SCM_CDR (walk)) | |
656 | { | |
657 | if (scm_is_eq (SCM_CAAR (walk), sp[nkw])) | |
658 | { | |
659 | SCM si = SCM_CDAR (walk); | |
660 | LOCAL_SET (SCM_I_INUMP (si) ? SCM_I_INUM (si) : scm_to_long (si), | |
661 | sp[nkw + 1]); | |
662 | break; | |
663 | } | |
664 | } | |
665 | if (!(kw_and_rest_flags & F_ALLOW_OTHER_KEYS) && !scm_is_pair (walk)) | |
666 | goto vm_error_kwargs_unrecognized_keyword; | |
667 | ||
668 | nkw++; | |
669 | } | |
670 | else if (!(kw_and_rest_flags & F_REST)) | |
671 | goto vm_error_kwargs_invalid_keyword; | |
7e01997e AW |
672 | } |
673 | ||
674 | NEXT; | |
675 | } | |
676 | ||
ff74e44e AW |
677 | #undef F_ALLOW_OTHER_KEYS |
678 | #undef F_REST | |
679 | ||
680 | ||
e4257331 | 681 | VM_DEFINE_INSTRUCTION (50, push_rest, "push-rest", 2, -1, -1) |
1e2a8c26 AW |
682 | { |
683 | scm_t_ptrdiff n; | |
a6f15a1e | 684 | SCM rest = SCM_EOL; |
1e2a8c26 AW |
685 | n = FETCH () << 8; |
686 | n += FETCH (); | |
a6f15a1e | 687 | while (sp - (fp - 1) > n) |
1e2a8c26 AW |
688 | /* No need to check for underflow. */ |
689 | CONS (rest, *sp--, rest); | |
690 | PUSH (rest); | |
1e2a8c26 AW |
691 | NEXT; |
692 | } | |
693 | ||
e4257331 | 694 | VM_DEFINE_INSTRUCTION (51, bind_rest, "bind-rest", 4, -1, -1) |
899d37a6 AW |
695 | { |
696 | scm_t_ptrdiff n; | |
697 | scm_t_uint32 i; | |
698 | SCM rest = SCM_EOL; | |
699 | n = FETCH () << 8; | |
700 | n += FETCH (); | |
701 | i = FETCH () << 8; | |
702 | i += FETCH (); | |
703 | while (sp - (fp - 1) > n) | |
704 | /* No need to check for underflow. */ | |
705 | CONS (rest, *sp--, rest); | |
706 | LOCAL_SET (i, rest); | |
707 | NEXT; | |
708 | } | |
709 | ||
e4257331 | 710 | VM_DEFINE_INSTRUCTION (52, reserve_locals, "reserve-locals", 2, -1, -1) |
b7946e9e | 711 | { |
258344b4 | 712 | SCM *old_sp; |
55d9bc94 AW |
713 | scm_t_int32 n; |
714 | n = FETCH () << 8; | |
715 | n += FETCH (); | |
258344b4 AW |
716 | old_sp = sp; |
717 | sp = (fp - 1) + n; | |
718 | ||
719 | if (old_sp < sp) | |
720 | { | |
721 | CHECK_OVERFLOW (); | |
722 | while (old_sp < sp) | |
723 | *++old_sp = SCM_UNDEFINED; | |
724 | } | |
725 | else | |
726 | NULLSTACK (old_sp - sp); | |
727 | ||
55d9bc94 AW |
728 | NEXT; |
729 | } | |
730 | ||
e4257331 | 731 | VM_DEFINE_INSTRUCTION (53, new_frame, "new-frame", 0, 0, 3) |
b7946e9e | 732 | { |
6c6a4439 AW |
733 | /* NB: if you change this, see frames.c:vm-frame-num-locals */ |
734 | /* and frames.h, vm-engine.c, etc of course */ | |
b7946e9e AW |
735 | PUSH ((SCM)fp); /* dynamic link */ |
736 | PUSH (0); /* mvra */ | |
737 | PUSH (0); /* ra */ | |
738 | NEXT; | |
739 | } | |
740 | ||
e4257331 | 741 | VM_DEFINE_INSTRUCTION (54, call, "call", 1, -1, 1) |
a98cef7e | 742 | { |
17e90c5e | 743 | nargs = FETCH (); |
a98cef7e KN |
744 | |
745 | vm_call: | |
75c3ed28 | 746 | program = sp[-nargs]; |
c8b9df71 | 747 | |
e8c37772 | 748 | VM_HANDLE_INTERRUPTS; |
e311f5fa | 749 | |
75c3ed28 | 750 | if (SCM_UNLIKELY (!SCM_PROGRAM_P (program))) |
a98cef7e | 751 | { |
75c3ed28 | 752 | if (SCM_STRUCTP (program) && SCM_STRUCT_APPLICABLE_P (program)) |
42906d74 | 753 | { |
75c3ed28 AW |
754 | sp[-nargs] = SCM_STRUCT_PROCEDURE (program); |
755 | goto vm_call; | |
756 | } | |
757 | else if (SCM_NIMP (program) && SCM_TYP7 (program) == scm_tc7_smob | |
758 | && SCM_SMOB_APPLICABLE_P (program)) | |
759 | { | |
760 | SYNC_REGISTER (); | |
761 | sp[-nargs] = scm_i_smob_apply_trampoline (program); | |
762 | goto vm_call; | |
42906d74 | 763 | } |
23f276de | 764 | else |
75c3ed28 | 765 | goto vm_error_wrong_type_apply; |
a98cef7e | 766 | } |
a98cef7e | 767 | |
75c3ed28 AW |
768 | CACHE_PROGRAM (); |
769 | fp = sp - nargs + 1; | |
770 | ASSERT (SCM_FRAME_RETURN_ADDRESS (fp) == 0); | |
771 | ASSERT (SCM_FRAME_MV_RETURN_ADDRESS (fp) == 0); | |
772 | SCM_FRAME_SET_RETURN_ADDRESS (fp, ip); | |
773 | SCM_FRAME_SET_MV_RETURN_ADDRESS (fp, 0); | |
774 | ip = SCM_C_OBJCODE_BASE (bp); | |
c45d4d77 | 775 | PUSH_CONTINUATION_HOOK (); |
75c3ed28 AW |
776 | APPLY_HOOK (); |
777 | NEXT; | |
a98cef7e KN |
778 | } |
779 | ||
a5bbb22e | 780 | VM_DEFINE_INSTRUCTION (55, tail_call, "tail-call", 1, -1, 1) |
a98cef7e | 781 | { |
17e90c5e | 782 | nargs = FETCH (); |
75c3ed28 | 783 | |
a5bbb22e | 784 | vm_tail_call: |
75c3ed28 | 785 | program = sp[-nargs]; |
17e90c5e | 786 | |
e8c37772 | 787 | VM_HANDLE_INTERRUPTS; |
a98cef7e | 788 | |
75c3ed28 AW |
789 | if (SCM_UNLIKELY (!SCM_PROGRAM_P (program))) |
790 | { | |
791 | if (SCM_STRUCTP (program) && SCM_STRUCT_APPLICABLE_P (program)) | |
792 | { | |
793 | sp[-nargs] = SCM_STRUCT_PROCEDURE (program); | |
794 | goto vm_tail_call; | |
795 | } | |
796 | else if (SCM_NIMP (program) && SCM_TYP7 (program) == scm_tc7_smob | |
797 | && SCM_SMOB_APPLICABLE_P (program)) | |
798 | { | |
799 | SYNC_REGISTER (); | |
800 | sp[-nargs] = scm_i_smob_apply_trampoline (program); | |
801 | goto vm_tail_call; | |
802 | } | |
803 | else | |
804 | goto vm_error_wrong_type_apply; | |
805 | } | |
806 | else | |
17e90c5e | 807 | { |
28106f54 | 808 | int i; |
11ea1aba | 809 | #ifdef VM_ENABLE_STACK_NULLING |
a6f15a1e AW |
810 | SCM *old_sp = sp; |
811 | CHECK_STACK_LEAK (); | |
11ea1aba | 812 | #endif |
28106f54 | 813 | |
28106f54 | 814 | /* switch programs */ |
28106f54 | 815 | CACHE_PROGRAM (); |
a6f15a1e AW |
816 | /* shuffle down the program and the arguments */ |
817 | for (i = -1, sp = sp - nargs + 1; i < nargs; i++) | |
818 | SCM_FRAME_STACK_ADDRESS (fp)[i] = sp[i]; | |
11ea1aba | 819 | |
03e6c165 | 820 | sp = fp + i - 1; |
28106f54 | 821 | |
11ea1aba AW |
822 | NULLSTACK (old_sp - sp); |
823 | ||
3dbbe28d | 824 | ip = SCM_C_OBJCODE_BASE (bp); |
11ea1aba | 825 | |
28106f54 AW |
826 | APPLY_HOOK (); |
827 | NEXT; | |
17e90c5e | 828 | } |
17e90c5e KN |
829 | } |
830 | ||
827dc8dc | 831 | VM_DEFINE_INSTRUCTION (56, subr_call, "subr-call", 1, -1, -1) |
fd629322 | 832 | { |
5b46a8c2 | 833 | SCM pointer, ret; |
fd629322 | 834 | SCM (*subr)(); |
5b46a8c2 | 835 | |
fd629322 | 836 | nargs = FETCH (); |
5b46a8c2 | 837 | POP (pointer); |
fd629322 | 838 | |
5b46a8c2 | 839 | subr = SCM_POINTER_VALUE (pointer); |
fd629322 AW |
840 | |
841 | VM_HANDLE_INTERRUPTS; | |
842 | SYNC_REGISTER (); | |
843 | ||
844 | switch (nargs) | |
845 | { | |
846 | case 0: | |
847 | ret = subr (); | |
848 | break; | |
849 | case 1: | |
850 | ret = subr (sp[0]); | |
851 | break; | |
852 | case 2: | |
853 | ret = subr (sp[-1], sp[0]); | |
854 | break; | |
855 | case 3: | |
856 | ret = subr (sp[-2], sp[-1], sp[0]); | |
857 | break; | |
858 | case 4: | |
859 | ret = subr (sp[-3], sp[-2], sp[-1], sp[0]); | |
860 | break; | |
861 | case 5: | |
862 | ret = subr (sp[-4], sp[-3], sp[-2], sp[-1], sp[0]); | |
863 | break; | |
864 | case 6: | |
865 | ret = subr (sp[-5], sp[-4], sp[-3], sp[-2], sp[-1], sp[0]); | |
866 | break; | |
867 | case 7: | |
868 | ret = subr (sp[-6], sp[-5], sp[-4], sp[-3], sp[-2], sp[-1], sp[0]); | |
869 | break; | |
870 | case 8: | |
871 | ret = subr (sp[-7], sp[-6], sp[-5], sp[-4], sp[-3], sp[-2], sp[-1], sp[0]); | |
872 | break; | |
873 | case 9: | |
874 | ret = subr (sp[-8], sp[-7], sp[-6], sp[-5], sp[-4], sp[-3], sp[-2], sp[-1], sp[0]); | |
875 | break; | |
876 | case 10: | |
877 | ret = subr (sp[-9], sp[-8], sp[-7], sp[-6], sp[-5], sp[-4], sp[-3], sp[-2], sp[-1], sp[0]); | |
878 | break; | |
879 | default: | |
880 | abort (); | |
881 | } | |
882 | ||
883 | NULLSTACK_FOR_NONLOCAL_EXIT (); | |
fd629322 AW |
884 | |
885 | if (SCM_UNLIKELY (SCM_VALUESP (ret))) | |
886 | { | |
887 | /* multiple values returned to continuation */ | |
888 | ret = scm_struct_ref (ret, SCM_INUM0); | |
889 | nvalues = scm_ilength (ret); | |
890 | PUSH_LIST (ret, scm_is_null); | |
891 | goto vm_return_values; | |
892 | } | |
893 | else | |
894 | { | |
895 | PUSH (ret); | |
896 | goto vm_return; | |
897 | } | |
898 | } | |
899 | ||
827dc8dc | 900 | VM_DEFINE_INSTRUCTION (57, smob_call, "smob-call", 1, -1, -1) |
75c3ed28 AW |
901 | { |
902 | SCM smob, ret; | |
903 | SCM (*subr)(); | |
904 | nargs = FETCH (); | |
905 | POP (smob); | |
906 | ||
907 | subr = SCM_SMOB_DESCRIPTOR (smob).apply; | |
908 | ||
909 | VM_HANDLE_INTERRUPTS; | |
910 | SYNC_REGISTER (); | |
911 | ||
912 | switch (nargs) | |
913 | { | |
914 | case 0: | |
915 | ret = subr (smob); | |
916 | break; | |
917 | case 1: | |
918 | ret = subr (smob, sp[0]); | |
919 | break; | |
920 | case 2: | |
921 | ret = subr (smob, sp[-1], sp[0]); | |
922 | break; | |
923 | case 3: | |
924 | ret = subr (smob, sp[-2], sp[-1], sp[0]); | |
925 | break; | |
926 | default: | |
927 | abort (); | |
928 | } | |
929 | ||
930 | NULLSTACK_FOR_NONLOCAL_EXIT (); | |
75c3ed28 AW |
931 | |
932 | if (SCM_UNLIKELY (SCM_VALUESP (ret))) | |
933 | { | |
934 | /* multiple values returned to continuation */ | |
935 | ret = scm_struct_ref (ret, SCM_INUM0); | |
936 | nvalues = scm_ilength (ret); | |
937 | PUSH_LIST (ret, scm_is_null); | |
938 | goto vm_return_values; | |
939 | } | |
940 | else | |
941 | { | |
942 | PUSH (ret); | |
943 | goto vm_return; | |
944 | } | |
945 | } | |
946 | ||
827dc8dc AW |
947 | VM_DEFINE_INSTRUCTION (58, foreign_call, "foreign-call", 1, -1, -1) |
948 | { | |
949 | SCM foreign, ret; | |
950 | nargs = FETCH (); | |
951 | POP (foreign); | |
952 | ||
953 | VM_HANDLE_INTERRUPTS; | |
954 | SYNC_REGISTER (); | |
955 | ||
4d9130a5 | 956 | ret = scm_i_foreign_call (foreign, sp - nargs + 1); |
827dc8dc AW |
957 | |
958 | NULLSTACK_FOR_NONLOCAL_EXIT (); | |
959 | ||
960 | if (SCM_UNLIKELY (SCM_VALUESP (ret))) | |
961 | { | |
962 | /* multiple values returned to continuation */ | |
963 | ret = scm_struct_ref (ret, SCM_INUM0); | |
964 | nvalues = scm_ilength (ret); | |
965 | PUSH_LIST (ret, scm_is_null); | |
966 | goto vm_return_values; | |
967 | } | |
968 | else | |
969 | { | |
970 | PUSH (ret); | |
971 | goto vm_return; | |
972 | } | |
973 | } | |
974 | ||
1d1cae0e AW |
975 | VM_DEFINE_INSTRUCTION (89, continuation_call, "continuation-call", 0, -1, 0) |
976 | { | |
977 | SCM contregs; | |
978 | POP (contregs); | |
d8873dfe | 979 | |
f7cea645 | 980 | SYNC_ALL (); |
d8873dfe AW |
981 | scm_i_check_continuation (contregs); |
982 | vm_return_to_continuation (scm_i_contregs_vm (contregs), | |
983 | scm_i_contregs_vm_cont (contregs), | |
984 | sp - (fp - 1), fp); | |
985 | scm_i_reinstate_continuation (contregs); | |
986 | ||
1d1cae0e AW |
987 | /* no NEXT */ |
988 | abort (); | |
989 | } | |
990 | ||
cee1d22c AW |
991 | VM_DEFINE_INSTRUCTION (94, partial_cont_call, "partial-cont-call", 0, -1, 0) |
992 | { | |
adbdfd6d | 993 | SCM vmcont, intwinds, prevwinds; |
cee1d22c AW |
994 | POP (intwinds); |
995 | POP (vmcont); | |
07801437 | 996 | SYNC_REGISTER (); |
b3950ad6 AW |
997 | if (SCM_UNLIKELY (!SCM_VM_CONT_REWINDABLE_P (vmcont))) |
998 | { finish_args = vmcont; | |
999 | goto vm_error_continuation_not_rewindable; | |
1000 | } | |
adbdfd6d AW |
1001 | prevwinds = scm_i_dynwinds (); |
1002 | vm_reinstate_partial_continuation (vm, vmcont, intwinds, sp + 1 - fp, fp, | |
1003 | vm_cookie); | |
1004 | ||
1005 | /* Rewind prompt jmpbuffers, if any. */ | |
1006 | { | |
1007 | SCM winds = scm_i_dynwinds (); | |
1008 | for (; !scm_is_eq (winds, prevwinds); winds = scm_cdr (winds)) | |
1009 | if (SCM_PROMPT_P (scm_car (winds)) && SCM_PROMPT_SETJMP (scm_car (winds))) | |
1010 | break; | |
1011 | } | |
1012 | ||
07801437 AW |
1013 | CACHE_REGISTER (); |
1014 | program = SCM_FRAME_PROGRAM (fp); | |
1015 | CACHE_PROGRAM (); | |
cee1d22c AW |
1016 | NEXT; |
1017 | } | |
1018 | ||
827dc8dc | 1019 | VM_DEFINE_INSTRUCTION (59, tail_call_nargs, "tail-call/nargs", 0, 0, 1) |
efbd5892 AW |
1020 | { |
1021 | SCM x; | |
1022 | POP (x); | |
1023 | nargs = scm_to_int (x); | |
d51406fe | 1024 | /* FIXME: should truncate values? */ |
a5bbb22e | 1025 | goto vm_tail_call; |
efbd5892 AW |
1026 | } |
1027 | ||
827dc8dc | 1028 | VM_DEFINE_INSTRUCTION (60, call_nargs, "call/nargs", 0, 0, 1) |
efbd5892 AW |
1029 | { |
1030 | SCM x; | |
1031 | POP (x); | |
1032 | nargs = scm_to_int (x); | |
d51406fe | 1033 | /* FIXME: should truncate values? */ |
efbd5892 AW |
1034 | goto vm_call; |
1035 | } | |
1036 | ||
827dc8dc | 1037 | VM_DEFINE_INSTRUCTION (61, mv_call, "mv-call", 4, -1, 1) |
a222b0fa | 1038 | { |
97fcf583 | 1039 | scm_t_int32 offset; |
e5dc27b8 | 1040 | scm_t_uint8 *mvra; |
a222b0fa AW |
1041 | |
1042 | nargs = FETCH (); | |
efbd5892 | 1043 | FETCH_OFFSET (offset); |
97fcf583 | 1044 | mvra = ip + offset; |
a222b0fa | 1045 | |
352c87d7 | 1046 | vm_mv_call: |
75c3ed28 | 1047 | program = sp[-nargs]; |
a222b0fa | 1048 | |
7d94e4af AW |
1049 | VM_HANDLE_INTERRUPTS; |
1050 | ||
75c3ed28 | 1051 | if (SCM_UNLIKELY (!SCM_PROGRAM_P (program))) |
a222b0fa | 1052 | { |
75c3ed28 AW |
1053 | if (SCM_STRUCTP (program) && SCM_STRUCT_APPLICABLE_P (program)) |
1054 | { | |
1055 | sp[-nargs] = SCM_STRUCT_PROCEDURE (program); | |
1056 | goto vm_mv_call; | |
1057 | } | |
1058 | else if (SCM_NIMP (program) && SCM_TYP7 (program) == scm_tc7_smob | |
1059 | && SCM_SMOB_APPLICABLE_P (program)) | |
a222b0fa | 1060 | { |
75c3ed28 AW |
1061 | SYNC_REGISTER (); |
1062 | sp[-nargs] = scm_i_smob_apply_trampoline (program); | |
1063 | goto vm_mv_call; | |
a222b0fa | 1064 | } |
cc8d1f5f | 1065 | else |
75c3ed28 | 1066 | goto vm_error_wrong_type_apply; |
a222b0fa | 1067 | } |
a222b0fa | 1068 | |
75c3ed28 AW |
1069 | CACHE_PROGRAM (); |
1070 | fp = sp - nargs + 1; | |
1071 | ASSERT (SCM_FRAME_RETURN_ADDRESS (fp) == 0); | |
1072 | ASSERT (SCM_FRAME_MV_RETURN_ADDRESS (fp) == 0); | |
1073 | SCM_FRAME_SET_RETURN_ADDRESS (fp, ip); | |
1074 | SCM_FRAME_SET_MV_RETURN_ADDRESS (fp, mvra); | |
1075 | ip = SCM_C_OBJCODE_BASE (bp); | |
c45d4d77 | 1076 | PUSH_CONTINUATION_HOOK (); |
75c3ed28 AW |
1077 | APPLY_HOOK (); |
1078 | NEXT; | |
a222b0fa AW |
1079 | } |
1080 | ||
827dc8dc | 1081 | VM_DEFINE_INSTRUCTION (62, apply, "apply", 1, -1, 1) |
3616e9e9 | 1082 | { |
c8b9df71 KN |
1083 | int len; |
1084 | SCM ls; | |
1085 | POP (ls); | |
1086 | ||
1087 | nargs = FETCH (); | |
9a8cc8e7 | 1088 | ASSERT (nargs >= 2); |
c8b9df71 KN |
1089 | |
1090 | len = scm_ilength (ls); | |
41e49280 AW |
1091 | if (SCM_UNLIKELY (len < 0)) |
1092 | { | |
1093 | finish_args = ls; | |
1094 | goto vm_error_apply_to_non_list; | |
1095 | } | |
c8b9df71 | 1096 | |
fb10a008 | 1097 | PUSH_LIST (ls, SCM_NULL_OR_NIL_P); |
c8b9df71 KN |
1098 | |
1099 | nargs += len - 2; | |
1100 | goto vm_call; | |
3616e9e9 KN |
1101 | } |
1102 | ||
827dc8dc | 1103 | VM_DEFINE_INSTRUCTION (63, tail_apply, "tail-apply", 1, -1, 1) |
f03c31db AW |
1104 | { |
1105 | int len; | |
1106 | SCM ls; | |
1107 | POP (ls); | |
1108 | ||
1109 | nargs = FETCH (); | |
9a8cc8e7 | 1110 | ASSERT (nargs >= 2); |
f03c31db AW |
1111 | |
1112 | len = scm_ilength (ls); | |
41e49280 AW |
1113 | if (SCM_UNLIKELY (len < 0)) |
1114 | { | |
1115 | finish_args = ls; | |
1116 | goto vm_error_apply_to_non_list; | |
1117 | } | |
f03c31db | 1118 | |
fb10a008 | 1119 | PUSH_LIST (ls, SCM_NULL_OR_NIL_P); |
f03c31db AW |
1120 | |
1121 | nargs += len - 2; | |
a5bbb22e | 1122 | goto vm_tail_call; |
f03c31db AW |
1123 | } |
1124 | ||
827dc8dc | 1125 | VM_DEFINE_INSTRUCTION (64, call_cc, "call/cc", 0, 1, 1) |
17e90c5e | 1126 | { |
76282387 | 1127 | int first; |
d8873dfe | 1128 | SCM proc, vm_cont, cont; |
76282387 AW |
1129 | POP (proc); |
1130 | SYNC_ALL (); | |
cee1d22c | 1131 | vm_cont = scm_i_vm_capture_stack (vp->stack_base, fp, sp, ip, NULL, 0); |
d8873dfe | 1132 | cont = scm_i_make_continuation (&first, vm, vm_cont); |
76282387 AW |
1133 | if (first) |
1134 | { | |
b7946e9e AW |
1135 | PUSH ((SCM)fp); /* dynamic link */ |
1136 | PUSH (0); /* mvra */ | |
1137 | PUSH (0); /* ra */ | |
76282387 AW |
1138 | PUSH (proc); |
1139 | PUSH (cont); | |
1140 | nargs = 1; | |
1141 | goto vm_call; | |
1142 | } | |
d8873dfe | 1143 | else |
76282387 | 1144 | { |
f3120251 AW |
1145 | /* Otherwise, the vm continuation was reinstated, and |
1146 | vm_return_to_continuation pushed on one value. We know only one | |
1147 | value was returned because we are in value context -- the | |
1148 | previous block jumped to vm_call, not vm_mv_call, after all. | |
1149 | ||
1150 | So, pull our regs back down from the vp, and march on to the | |
1151 | next instruction. */ | |
d8873dfe AW |
1152 | CACHE_REGISTER (); |
1153 | program = SCM_FRAME_PROGRAM (fp); | |
1154 | CACHE_PROGRAM (); | |
f3120251 | 1155 | RESTORE_CONTINUATION_HOOK (); |
76282387 AW |
1156 | NEXT; |
1157 | } | |
a98cef7e KN |
1158 | } |
1159 | ||
827dc8dc | 1160 | VM_DEFINE_INSTRUCTION (65, tail_call_cc, "tail-call/cc", 0, 1, 1) |
f03c31db | 1161 | { |
76282387 | 1162 | int first; |
d8873dfe | 1163 | SCM proc, vm_cont, cont; |
76282387 AW |
1164 | POP (proc); |
1165 | SYNC_ALL (); | |
d8873dfe AW |
1166 | /* In contrast to call/cc, tail-call/cc captures the continuation without the |
1167 | stack frame. */ | |
cee1d22c AW |
1168 | vm_cont = scm_i_vm_capture_stack (vp->stack_base, |
1169 | SCM_FRAME_DYNAMIC_LINK (fp), | |
1170 | SCM_FRAME_LOWER_ADDRESS (fp) - 1, | |
1171 | SCM_FRAME_RETURN_ADDRESS (fp), | |
1172 | SCM_FRAME_MV_RETURN_ADDRESS (fp), | |
1173 | 0); | |
d8873dfe | 1174 | cont = scm_i_make_continuation (&first, vm, vm_cont); |
76282387 AW |
1175 | if (first) |
1176 | { | |
1177 | PUSH (proc); | |
1178 | PUSH (cont); | |
1179 | nargs = 1; | |
a5bbb22e | 1180 | goto vm_tail_call; |
76282387 | 1181 | } |
76282387 AW |
1182 | else |
1183 | { | |
d8873dfe | 1184 | /* Otherwise, cache regs and NEXT, as above. Invoking the continuation |
f3120251 AW |
1185 | does a return from the frame, either to the RA or |
1186 | MVRA. */ | |
d8873dfe AW |
1187 | CACHE_REGISTER (); |
1188 | program = SCM_FRAME_PROGRAM (fp); | |
1189 | CACHE_PROGRAM (); | |
f3120251 AW |
1190 | /* Unfortunately we don't know whether we are at the RA, and thus |
1191 | have one value without an nvalues marker, or we are at the | |
1192 | MVRA and thus have multiple values and the nvalues | |
1193 | marker. Instead of adding heuristics here, we will let hook | |
1194 | client code do that. */ | |
1195 | RESTORE_CONTINUATION_HOOK (); | |
d8873dfe | 1196 | NEXT; |
76282387 | 1197 | } |
f03c31db AW |
1198 | } |
1199 | ||
827dc8dc | 1200 | VM_DEFINE_INSTRUCTION (66, return, "return", 0, 1, 1) |
a98cef7e | 1201 | { |
a98cef7e | 1202 | vm_return: |
c45d4d77 | 1203 | POP_CONTINUATION_HOOK (1); |
e8c37772 AW |
1204 | |
1205 | VM_HANDLE_INTERRUPTS; | |
1206 | ||
f13c269b | 1207 | { |
03e6c165 | 1208 | SCM ret; |
f13c269b AW |
1209 | |
1210 | POP (ret); | |
6c6a4439 AW |
1211 | |
1212 | #ifdef VM_ENABLE_STACK_NULLING | |
1213 | SCM *old_sp = sp; | |
1214 | #endif | |
f13c269b AW |
1215 | |
1216 | /* Restore registers */ | |
1217 | sp = SCM_FRAME_LOWER_ADDRESS (fp); | |
03e6c165 AW |
1218 | ip = SCM_FRAME_RETURN_ADDRESS (fp); |
1219 | fp = SCM_FRAME_DYNAMIC_LINK (fp); | |
6c6a4439 | 1220 | |
11ea1aba | 1221 | #ifdef VM_ENABLE_STACK_NULLING |
6c6a4439 | 1222 | NULLSTACK (old_sp - sp); |
11ea1aba | 1223 | #endif |
f13c269b AW |
1224 | |
1225 | /* Set return value (sp is already pushed) */ | |
1226 | *sp = ret; | |
1227 | } | |
17e90c5e | 1228 | |
15df3447 | 1229 | /* Restore the last program */ |
af988bbf | 1230 | program = SCM_FRAME_PROGRAM (fp); |
499a4c07 | 1231 | CACHE_PROGRAM (); |
7e4760e4 | 1232 | CHECK_IP (); |
a98cef7e KN |
1233 | NEXT; |
1234 | } | |
17e90c5e | 1235 | |
827dc8dc | 1236 | VM_DEFINE_INSTRUCTION (67, return_values, "return/values", 1, -1, -1) |
a222b0fa | 1237 | { |
ef24c01b AW |
1238 | /* nvalues declared at top level, because for some reason gcc seems to think |
1239 | that perhaps it might be used without declaration. Fooey to that, I say. */ | |
ef24c01b AW |
1240 | nvalues = FETCH (); |
1241 | vm_return_values: | |
c45d4d77 | 1242 | POP_CONTINUATION_HOOK (nvalues); |
ef24c01b | 1243 | |
7d94e4af AW |
1244 | VM_HANDLE_INTERRUPTS; |
1245 | ||
03e6c165 | 1246 | if (nvalues != 1 && SCM_FRAME_MV_RETURN_ADDRESS (fp)) |
ef24c01b | 1247 | { |
6c6a4439 AW |
1248 | /* A multiply-valued continuation */ |
1249 | SCM *vals = sp - nvalues; | |
ef24c01b AW |
1250 | int i; |
1251 | /* Restore registers */ | |
1252 | sp = SCM_FRAME_LOWER_ADDRESS (fp) - 1; | |
03e6c165 AW |
1253 | ip = SCM_FRAME_MV_RETURN_ADDRESS (fp); |
1254 | fp = SCM_FRAME_DYNAMIC_LINK (fp); | |
a222b0fa | 1255 | |
ef24c01b AW |
1256 | /* Push return values, and the number of values */ |
1257 | for (i = 0; i < nvalues; i++) | |
6c6a4439 | 1258 | *++sp = vals[i+1]; |
ef24c01b | 1259 | *++sp = SCM_I_MAKINUM (nvalues); |
a222b0fa | 1260 | |
6c6a4439 AW |
1261 | /* Finally null the end of the stack */ |
1262 | NULLSTACK (vals + nvalues - sp); | |
ef24c01b AW |
1263 | } |
1264 | else if (nvalues >= 1) | |
1265 | { | |
1266 | /* Multiple values for a single-valued continuation -- here's where I | |
1267 | break with guile tradition and try and do something sensible. (Also, | |
1268 | this block handles the single-valued return to an mv | |
1269 | continuation.) */ | |
6c6a4439 | 1270 | SCM *vals = sp - nvalues; |
ef24c01b AW |
1271 | /* Restore registers */ |
1272 | sp = SCM_FRAME_LOWER_ADDRESS (fp) - 1; | |
03e6c165 AW |
1273 | ip = SCM_FRAME_RETURN_ADDRESS (fp); |
1274 | fp = SCM_FRAME_DYNAMIC_LINK (fp); | |
a222b0fa | 1275 | |
ef24c01b | 1276 | /* Push first value */ |
6c6a4439 | 1277 | *++sp = vals[1]; |
a222b0fa | 1278 | |
6c6a4439 AW |
1279 | /* Finally null the end of the stack */ |
1280 | NULLSTACK (vals + nvalues - sp); | |
ef24c01b AW |
1281 | } |
1282 | else | |
1283 | goto vm_error_no_values; | |
a222b0fa AW |
1284 | |
1285 | /* Restore the last program */ | |
1286 | program = SCM_FRAME_PROGRAM (fp); | |
1287 | CACHE_PROGRAM (); | |
a222b0fa AW |
1288 | CHECK_IP (); |
1289 | NEXT; | |
1290 | } | |
1291 | ||
827dc8dc | 1292 | VM_DEFINE_INSTRUCTION (68, return_values_star, "return/values*", 1, -1, -1) |
ef24c01b AW |
1293 | { |
1294 | SCM l; | |
1295 | ||
1296 | nvalues = FETCH (); | |
11ea1aba | 1297 | ASSERT (nvalues >= 1); |
ef24c01b AW |
1298 | |
1299 | nvalues--; | |
1300 | POP (l); | |
9bd48cb1 | 1301 | while (scm_is_pair (l)) |
ef24c01b AW |
1302 | { |
1303 | PUSH (SCM_CAR (l)); | |
1304 | l = SCM_CDR (l); | |
1305 | nvalues++; | |
1306 | } | |
fb10a008 | 1307 | if (SCM_UNLIKELY (!SCM_NULL_OR_NIL_P (l))) { |
e06e857c | 1308 | finish_args = scm_list_1 (l); |
fb10a008 AW |
1309 | goto vm_error_improper_list; |
1310 | } | |
ef24c01b AW |
1311 | |
1312 | goto vm_return_values; | |
1313 | } | |
1314 | ||
2d9260d1 AW |
1315 | VM_DEFINE_INSTRUCTION (88, return_nvalues, "return/nvalues", 0, 1, -1) |
1316 | { | |
1317 | SCM n; | |
1318 | POP (n); | |
1319 | nvalues = scm_to_int (n); | |
1320 | ASSERT (nvalues >= 0); | |
1321 | goto vm_return_values; | |
1322 | } | |
1323 | ||
827dc8dc | 1324 | VM_DEFINE_INSTRUCTION (69, truncate_values, "truncate-values", 2, -1, -1) |
d51406fe AW |
1325 | { |
1326 | SCM x; | |
1327 | int nbinds, rest; | |
1328 | POP (x); | |
1329 | nvalues = scm_to_int (x); | |
1330 | nbinds = FETCH (); | |
1331 | rest = FETCH (); | |
1332 | ||
1333 | if (rest) | |
1334 | nbinds--; | |
1335 | ||
1336 | if (nvalues < nbinds) | |
1337 | goto vm_error_not_enough_values; | |
1338 | ||
1339 | if (rest) | |
1340 | POP_LIST (nvalues - nbinds); | |
1341 | else | |
1342 | DROPN (nvalues - nbinds); | |
1343 | ||
1344 | NEXT; | |
1345 | } | |
1346 | ||
827dc8dc | 1347 | VM_DEFINE_INSTRUCTION (70, box, "box", 1, 1, 0) |
a9b0f876 | 1348 | { |
8d90b356 AW |
1349 | SCM val; |
1350 | POP (val); | |
1351 | SYNC_BEFORE_GC (); | |
1352 | LOCAL_SET (FETCH (), scm_cell (scm_tc7_variable, SCM_UNPACK (val))); | |
a9b0f876 AW |
1353 | NEXT; |
1354 | } | |
1355 | ||
8d90b356 AW |
1356 | /* for letrec: |
1357 | (let ((a *undef*) (b *undef*) ...) | |
1358 | (set! a (lambda () (b ...))) | |
1359 | ...) | |
1360 | */ | |
827dc8dc | 1361 | VM_DEFINE_INSTRUCTION (71, empty_box, "empty-box", 1, 0, 0) |
a9b0f876 | 1362 | { |
8d90b356 AW |
1363 | SYNC_BEFORE_GC (); |
1364 | LOCAL_SET (FETCH (), | |
1365 | scm_cell (scm_tc7_variable, SCM_UNPACK (SCM_UNDEFINED))); | |
1366 | NEXT; | |
1367 | } | |
a9b0f876 | 1368 | |
827dc8dc | 1369 | VM_DEFINE_INSTRUCTION (72, local_boxed_ref, "local-boxed-ref", 1, 0, 1) |
8d90b356 AW |
1370 | { |
1371 | SCM v = LOCAL_REF (FETCH ()); | |
1372 | ASSERT_BOUND_VARIABLE (v); | |
1373 | PUSH (VARIABLE_REF (v)); | |
1374 | NEXT; | |
1375 | } | |
a9b0f876 | 1376 | |
827dc8dc | 1377 | VM_DEFINE_INSTRUCTION (73, local_boxed_set, "local-boxed-set", 1, 1, 0) |
8d90b356 AW |
1378 | { |
1379 | SCM v, val; | |
1380 | v = LOCAL_REF (FETCH ()); | |
1381 | POP (val); | |
1382 | ASSERT_VARIABLE (v); | |
1383 | VARIABLE_SET (v, val); | |
a9b0f876 AW |
1384 | NEXT; |
1385 | } | |
1386 | ||
827dc8dc | 1387 | VM_DEFINE_INSTRUCTION (74, free_ref, "free-ref", 1, 0, 1) |
a9b0f876 | 1388 | { |
8d90b356 AW |
1389 | scm_t_uint8 idx = FETCH (); |
1390 | ||
57ab0671 AW |
1391 | CHECK_FREE_VARIABLE (idx); |
1392 | PUSH (FREE_VARIABLE_REF (idx)); | |
8d90b356 AW |
1393 | NEXT; |
1394 | } | |
a9b0f876 | 1395 | |
57ab0671 | 1396 | /* no free-set -- if a var is assigned, it should be in a box */ |
a9b0f876 | 1397 | |
827dc8dc | 1398 | VM_DEFINE_INSTRUCTION (75, free_boxed_ref, "free-boxed-ref", 1, 0, 1) |
8d90b356 AW |
1399 | { |
1400 | SCM v; | |
1401 | scm_t_uint8 idx = FETCH (); | |
57ab0671 AW |
1402 | CHECK_FREE_VARIABLE (idx); |
1403 | v = FREE_VARIABLE_REF (idx); | |
8d90b356 AW |
1404 | ASSERT_BOUND_VARIABLE (v); |
1405 | PUSH (VARIABLE_REF (v)); | |
1406 | NEXT; | |
1407 | } | |
1408 | ||
827dc8dc | 1409 | VM_DEFINE_INSTRUCTION (76, free_boxed_set, "free-boxed-set", 1, 1, 0) |
8d90b356 AW |
1410 | { |
1411 | SCM v, val; | |
1412 | scm_t_uint8 idx = FETCH (); | |
1413 | POP (val); | |
57ab0671 AW |
1414 | CHECK_FREE_VARIABLE (idx); |
1415 | v = FREE_VARIABLE_REF (idx); | |
8d90b356 AW |
1416 | ASSERT_BOUND_VARIABLE (v); |
1417 | VARIABLE_SET (v, val); | |
1418 | NEXT; | |
1419 | } | |
1420 | ||
827dc8dc | 1421 | VM_DEFINE_INSTRUCTION (77, make_closure, "make-closure", 2, -1, 1) |
8d90b356 | 1422 | { |
6f16379e AW |
1423 | size_t n, len; |
1424 | SCM closure; | |
1425 | ||
1426 | len = FETCH (); | |
1427 | len <<= 8; | |
1428 | len += FETCH (); | |
8d90b356 | 1429 | SYNC_BEFORE_GC (); |
6f16379e AW |
1430 | closure = scm_words (scm_tc7_program | (len<<16), len + 3); |
1431 | SCM_SET_CELL_OBJECT_1 (closure, SCM_PROGRAM_OBJCODE (sp[-len])); | |
1432 | SCM_SET_CELL_OBJECT_2 (closure, SCM_PROGRAM_OBJTABLE (sp[-len])); | |
1433 | sp[-len] = closure; | |
1434 | for (n = 0; n < len; n++) | |
1435 | SCM_PROGRAM_FREE_VARIABLE_SET (closure, n, sp[-len + 1 + n]); | |
1436 | DROPN (len); | |
a9b0f876 AW |
1437 | NEXT; |
1438 | } | |
1439 | ||
827dc8dc | 1440 | VM_DEFINE_INSTRUCTION (78, make_variable, "make-variable", 0, 0, 1) |
80545853 AW |
1441 | { |
1442 | SYNC_BEFORE_GC (); | |
1443 | /* fixme underflow */ | |
1444 | PUSH (scm_cell (scm_tc7_variable, SCM_UNPACK (SCM_UNDEFINED))); | |
1445 | NEXT; | |
1446 | } | |
1447 | ||
827dc8dc | 1448 | VM_DEFINE_INSTRUCTION (79, fix_closure, "fix-closure", 2, -1, 0) |
c21c89b1 | 1449 | { |
6f16379e | 1450 | SCM x; |
c21c89b1 | 1451 | unsigned int i = FETCH (); |
6f16379e | 1452 | size_t n, len; |
c21c89b1 AW |
1453 | i <<= 8; |
1454 | i += FETCH (); | |
c21c89b1 AW |
1455 | /* FIXME CHECK_LOCAL (i) */ |
1456 | x = LOCAL_REF (i); | |
1457 | /* FIXME ASSERT_PROGRAM (x); */ | |
6f16379e AW |
1458 | len = SCM_PROGRAM_NUM_FREE_VARIABLES (x); |
1459 | for (n = 0; n < len; n++) | |
1460 | SCM_PROGRAM_FREE_VARIABLE_SET (x, n, sp[-len + 1 + n]); | |
1461 | DROPN (len); | |
c21c89b1 AW |
1462 | NEXT; |
1463 | } | |
1464 | ||
827dc8dc | 1465 | VM_DEFINE_INSTRUCTION (80, define, "define", 0, 0, 2) |
94ff26b9 AW |
1466 | { |
1467 | SCM sym, val; | |
1468 | POP (sym); | |
1469 | POP (val); | |
1470 | SYNC_REGISTER (); | |
1471 | VARIABLE_SET (scm_sym2var (sym, scm_current_module_lookup_closure (), | |
1472 | SCM_BOOL_T), | |
1473 | val); | |
1474 | NEXT; | |
1475 | } | |
1476 | ||
827dc8dc | 1477 | VM_DEFINE_INSTRUCTION (81, make_keyword, "make-keyword", 0, 1, 1) |
94ff26b9 AW |
1478 | { |
1479 | CHECK_UNDERFLOW (); | |
1480 | SYNC_REGISTER (); | |
1481 | *sp = scm_symbol_to_keyword (*sp); | |
1482 | NEXT; | |
1483 | } | |
1484 | ||
827dc8dc | 1485 | VM_DEFINE_INSTRUCTION (82, make_symbol, "make-symbol", 0, 1, 1) |
94ff26b9 AW |
1486 | { |
1487 | CHECK_UNDERFLOW (); | |
1488 | SYNC_REGISTER (); | |
1489 | *sp = scm_string_to_symbol (*sp); | |
1490 | NEXT; | |
1491 | } | |
1492 | ||
ea6b18e8 | 1493 | VM_DEFINE_INSTRUCTION (83, prompt, "prompt", 4, 2, 0) |
4f66bcde AW |
1494 | { |
1495 | scm_t_int32 offset; | |
ea6b18e8 | 1496 | scm_t_uint8 escape_only_p; |
747022e4 | 1497 | SCM k, prompt; |
4f66bcde | 1498 | |
4f66bcde AW |
1499 | escape_only_p = FETCH (); |
1500 | FETCH_OFFSET (offset); | |
4f66bcde AW |
1501 | POP (k); |
1502 | ||
1503 | SYNC_REGISTER (); | |
d2964315 | 1504 | /* Push the prompt onto the dynamic stack. */ |
adbdfd6d AW |
1505 | prompt = scm_c_make_prompt (k, fp, sp, ip + offset, escape_only_p, vm_cookie, |
1506 | scm_i_dynwinds ()); | |
1507 | scm_i_set_dynwinds (scm_cons (prompt, SCM_PROMPT_DYNWINDS (prompt))); | |
adaf86ec | 1508 | if (SCM_PROMPT_SETJMP (prompt)) |
4f66bcde AW |
1509 | { |
1510 | /* The prompt exited nonlocally. Cache the regs back from the vp, and go | |
ea6b18e8 | 1511 | to the handler. |
d2964315 AW |
1512 | |
1513 | Note, at this point, we must assume that any variable local to | |
1514 | vm_engine that can be assigned *has* been assigned. So we need to pull | |
1515 | all our state back from the ip/fp/sp. | |
ea6b18e8 | 1516 | */ |
d2964315 AW |
1517 | CACHE_REGISTER (); |
1518 | program = SCM_FRAME_PROGRAM (fp); | |
1519 | CACHE_PROGRAM (); | |
f3120251 AW |
1520 | /* The stack contains the values returned to this prompt, along |
1521 | with a number-of-values marker -- like an MV return. */ | |
1522 | ABORT_CONTINUATION_HOOK (); | |
4f66bcde AW |
1523 | NEXT; |
1524 | } | |
1525 | ||
1526 | /* Otherwise setjmp returned for the first time, so we go to execute the | |
1527 | prompt's body. */ | |
1528 | NEXT; | |
1529 | } | |
1530 | ||
1531 | VM_DEFINE_INSTRUCTION (85, wind, "wind", 0, 2, 0) | |
1532 | { | |
1533 | SCM wind, unwind; | |
1534 | POP (unwind); | |
1535 | POP (wind); | |
1536 | SYNC_REGISTER (); | |
1537 | /* Push wind and unwind procedures onto the dynamic stack. Note that neither | |
1538 | are actually called; the compiler should emit calls to wind and unwind for | |
1539 | the normal dynamic-wind control flow. */ | |
1540 | if (SCM_UNLIKELY (scm_is_false (scm_thunk_p (wind)))) | |
1541 | { | |
1542 | finish_args = wind; | |
1543 | goto vm_error_not_a_thunk; | |
1544 | } | |
1545 | if (SCM_UNLIKELY (scm_is_false (scm_thunk_p (unwind)))) | |
1546 | { | |
1547 | finish_args = unwind; | |
1548 | goto vm_error_not_a_thunk; | |
1549 | } | |
1550 | scm_i_set_dynwinds (scm_cons (scm_cons (wind, unwind), scm_i_dynwinds ())); | |
1551 | NEXT; | |
1552 | } | |
1553 | ||
6e84cb95 | 1554 | VM_DEFINE_INSTRUCTION (86, abort, "abort", 1, -1, -1) |
4f66bcde AW |
1555 | { |
1556 | unsigned n = FETCH (); | |
4f66bcde | 1557 | SYNC_REGISTER (); |
2d026f04 | 1558 | if (sp - n - 2 <= SCM_FRAME_UPPER_ADDRESS (fp)) |
eaefabee | 1559 | goto vm_error_stack_underflow; |
cee1d22c | 1560 | vm_abort (vm, n, vm_cookie); |
6e84cb95 | 1561 | /* vm_abort should not return */ |
4f66bcde AW |
1562 | abort (); |
1563 | } | |
1564 | ||
1565 | VM_DEFINE_INSTRUCTION (87, unwind, "unwind", 0, 0, 0) | |
1566 | { | |
1567 | /* A normal exit from the dynamic extent of an expression. Pop the top entry | |
1568 | off of the dynamic stack. */ | |
1569 | scm_i_set_dynwinds (scm_cdr (scm_i_dynwinds ())); | |
1570 | NEXT; | |
1571 | } | |
1572 | ||
e084b27e AW |
1573 | VM_DEFINE_INSTRUCTION (90, wind_fluids, "wind-fluids", 1, -1, 0) |
1574 | { | |
1575 | unsigned n = FETCH (); | |
1576 | SCM wf; | |
1577 | ||
1578 | if (sp - 2*n < SCM_FRAME_UPPER_ADDRESS (fp)) | |
1579 | goto vm_error_stack_underflow; | |
1580 | ||
f7cea645 | 1581 | SYNC_REGISTER (); |
e084b27e | 1582 | wf = scm_i_make_with_fluids (n, sp + 1 - 2*n, sp + 1 - n); |
26e6f99f | 1583 | scm_i_swap_with_fluids (wf, dynstate); |
e084b27e AW |
1584 | scm_i_set_dynwinds (scm_cons (wf, scm_i_dynwinds ())); |
1585 | NEXT; | |
1586 | } | |
1587 | ||
1588 | VM_DEFINE_INSTRUCTION (91, unwind_fluids, "unwind-fluids", 0, 0, 0) | |
1589 | { | |
1590 | SCM wf; | |
1591 | wf = scm_car (scm_i_dynwinds ()); | |
1592 | scm_i_set_dynwinds (scm_cdr (scm_i_dynwinds ())); | |
26e6f99f | 1593 | scm_i_swap_with_fluids (wf, dynstate); |
e084b27e AW |
1594 | NEXT; |
1595 | } | |
4f66bcde | 1596 | |
1e7a0337 AW |
1597 | VM_DEFINE_INSTRUCTION (92, fluid_ref, "fluid-ref", 0, 1, 1) |
1598 | { | |
1599 | size_t num; | |
1600 | SCM fluids; | |
1601 | ||
1602 | CHECK_UNDERFLOW (); | |
1603 | fluids = SCM_I_DYNAMIC_STATE_FLUIDS (dynstate); | |
6f8d7b12 | 1604 | if (SCM_UNLIKELY (!SCM_FLUID_P (*sp)) |
1e7a0337 AW |
1605 | || ((num = SCM_I_FLUID_NUM (*sp)) >= SCM_SIMPLE_VECTOR_LENGTH (fluids))) |
1606 | { | |
1607 | /* Punt dynstate expansion and error handling to the C proc. */ | |
1608 | SYNC_REGISTER (); | |
1609 | *sp = scm_fluid_ref (*sp); | |
1610 | } | |
1611 | else | |
1612 | *sp = SCM_SIMPLE_VECTOR_REF (fluids, num); | |
1613 | ||
1614 | NEXT; | |
1615 | } | |
1616 | ||
1617 | VM_DEFINE_INSTRUCTION (93, fluid_set, "fluid-set", 0, 2, 0) | |
1618 | { | |
1619 | size_t num; | |
1620 | SCM val, fluid, fluids; | |
1621 | ||
1622 | POP (val); | |
1623 | POP (fluid); | |
1624 | fluids = SCM_I_DYNAMIC_STATE_FLUIDS (dynstate); | |
6f8d7b12 | 1625 | if (SCM_UNLIKELY (!SCM_FLUID_P (fluid)) |
1e7a0337 AW |
1626 | || ((num = SCM_I_FLUID_NUM (fluid)) >= SCM_SIMPLE_VECTOR_LENGTH (fluids))) |
1627 | { | |
1628 | /* Punt dynstate expansion and error handling to the C proc. */ | |
1629 | SYNC_REGISTER (); | |
1630 | scm_fluid_set_x (fluid, val); | |
1631 | } | |
1632 | else | |
1633 | SCM_SIMPLE_VECTOR_SET (fluids, num, val); | |
1634 | ||
1635 | NEXT; | |
1636 | } | |
1637 | ||
de45d8ee AW |
1638 | VM_DEFINE_INSTRUCTION (95, assert_nargs_ee_locals, "assert-nargs-ee/locals", 1, 0, 0) |
1639 | { | |
1640 | scm_t_ptrdiff n; | |
1641 | SCM *old_sp; | |
1642 | ||
1643 | /* nargs = n & 0x7, nlocs = nargs + (n >> 3) */ | |
1644 | n = FETCH (); | |
1645 | ||
1646 | if (SCM_UNLIKELY (sp - (fp - 1) != (n & 0x7))) | |
1647 | goto vm_error_wrong_num_args; | |
1648 | ||
1649 | old_sp = sp; | |
1650 | sp += (n >> 3); | |
1651 | CHECK_OVERFLOW (); | |
1652 | while (old_sp < sp) | |
1653 | *++old_sp = SCM_UNDEFINED; | |
1654 | ||
1655 | NEXT; | |
1656 | } | |
1657 | ||
8d90b356 | 1658 | |
53e28ed9 AW |
1659 | /* |
1660 | (defun renumber-ops () | |
1661 | "start from top of buffer and renumber 'VM_DEFINE_FOO (\n' sequences" | |
1662 | (interactive "") | |
1663 | (save-excursion | |
1664 | (let ((counter -1)) (goto-char (point-min)) | |
1665 | (while (re-search-forward "^VM_DEFINE_[^ ]+ (\\([^,]+\\)," (point-max) t) | |
1666 | (replace-match | |
1667 | (number-to-string (setq counter (1+ counter))) | |
1668 | t t nil 1))))) | |
ff810079 | 1669 | (renumber-ops) |
53e28ed9 | 1670 | */ |
17e90c5e KN |
1671 | /* |
1672 | Local Variables: | |
1673 | c-file-style: "gnu" | |
1674 | End: | |
1675 | */ |