Commit | Line | Data |
---|---|---|
53e28ed9 | 1 | /* Copyright (C) 2001,2008,2009 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 | { |
3d5ee0cd | 34 | vp->time += scm_c_get_internal_run_time () - start_time; |
17e90c5e | 35 | HALT_HOOK (); |
a222b0fa | 36 | nvalues = SCM_I_INUM (*sp--); |
11ea1aba | 37 | NULLSTACK (1); |
a222b0fa | 38 | if (nvalues == 1) |
e06e857c | 39 | POP (finish_args); |
a222b0fa AW |
40 | else |
41 | { | |
42 | POP_LIST (nvalues); | |
e06e857c | 43 | POP (finish_args); |
877ffa3f | 44 | SYNC_REGISTER (); |
e06e857c | 45 | finish_args = scm_values (finish_args); |
a222b0fa AW |
46 | } |
47 | ||
1dc8f851 | 48 | { |
11ea1aba AW |
49 | ASSERT (sp == stack_base); |
50 | ASSERT (stack_base == SCM_FRAME_UPPER_ADDRESS (fp) - 1); | |
1dc8f851 AW |
51 | |
52 | /* Restore registers */ | |
53 | sp = SCM_FRAME_LOWER_ADDRESS (fp) - 1; | |
54 | ip = NULL; | |
55 | fp = SCM_FRAME_DYNAMIC_LINK (fp); | |
11ea1aba | 56 | NULLSTACK (stack_base - sp); |
1dc8f851 | 57 | } |
e06e857c AW |
58 | |
59 | goto vm_done; | |
a98cef7e KN |
60 | } |
61 | ||
53e28ed9 | 62 | VM_DEFINE_INSTRUCTION (2, break, "break", 0, 0, 0) |
7a0d0cee KN |
63 | { |
64 | BREAK_HOOK (); | |
65 | NEXT; | |
66 | } | |
67 | ||
131f7d6c | 68 | VM_DEFINE_INSTRUCTION (3, drop, "drop", 0, 1, 0) |
a98cef7e | 69 | { |
17e90c5e | 70 | DROP (); |
a98cef7e KN |
71 | NEXT; |
72 | } | |
73 | ||
53e28ed9 | 74 | VM_DEFINE_INSTRUCTION (4, mark, "mark", 0, 0, 1) |
cb4cca12 KN |
75 | { |
76 | PUSH (SCM_UNDEFINED); | |
77 | NEXT; | |
78 | } | |
79 | ||
53e28ed9 | 80 | VM_DEFINE_INSTRUCTION (5, dup, "dup", 0, 0, 1) |
26403690 | 81 | { |
f349065e KN |
82 | SCM x = *sp; |
83 | PUSH (x); | |
26403690 KN |
84 | NEXT; |
85 | } | |
86 | ||
17e90c5e KN |
87 | \f |
88 | /* | |
89 | * Object creation | |
90 | */ | |
a98cef7e | 91 | |
53e28ed9 | 92 | VM_DEFINE_INSTRUCTION (6, void, "void", 0, 0, 1) |
a98cef7e | 93 | { |
17e90c5e | 94 | PUSH (SCM_UNSPECIFIED); |
a98cef7e KN |
95 | NEXT; |
96 | } | |
97 | ||
53e28ed9 | 98 | VM_DEFINE_INSTRUCTION (7, make_true, "make-true", 0, 0, 1) |
a98cef7e | 99 | { |
17e90c5e | 100 | PUSH (SCM_BOOL_T); |
a98cef7e KN |
101 | NEXT; |
102 | } | |
103 | ||
53e28ed9 | 104 | VM_DEFINE_INSTRUCTION (8, make_false, "make-false", 0, 0, 1) |
a98cef7e | 105 | { |
17e90c5e | 106 | PUSH (SCM_BOOL_F); |
a98cef7e KN |
107 | NEXT; |
108 | } | |
109 | ||
53e28ed9 | 110 | VM_DEFINE_INSTRUCTION (9, make_eol, "make-eol", 0, 0, 1) |
a98cef7e | 111 | { |
17e90c5e | 112 | PUSH (SCM_EOL); |
a98cef7e KN |
113 | NEXT; |
114 | } | |
115 | ||
53e28ed9 | 116 | VM_DEFINE_INSTRUCTION (10, make_int8, "make-int8", 1, 0, 1) |
a98cef7e | 117 | { |
2d80426a | 118 | PUSH (SCM_I_MAKINUM ((signed char) FETCH ())); |
a98cef7e KN |
119 | NEXT; |
120 | } | |
121 | ||
53e28ed9 | 122 | VM_DEFINE_INSTRUCTION (11, make_int8_0, "make-int8:0", 0, 0, 1) |
a98cef7e | 123 | { |
238e7a11 | 124 | PUSH (SCM_INUM0); |
a98cef7e KN |
125 | NEXT; |
126 | } | |
127 | ||
53e28ed9 | 128 | VM_DEFINE_INSTRUCTION (12, make_int8_1, "make-int8:1", 0, 0, 1) |
a98cef7e | 129 | { |
238e7a11 | 130 | PUSH (SCM_I_MAKINUM (1)); |
a98cef7e KN |
131 | NEXT; |
132 | } | |
133 | ||
53e28ed9 | 134 | VM_DEFINE_INSTRUCTION (13, make_int16, "make-int16", 2, 0, 1) |
a98cef7e | 135 | { |
ea9b4b29 KN |
136 | int h = FETCH (); |
137 | int l = FETCH (); | |
2d80426a | 138 | PUSH (SCM_I_MAKINUM ((signed short) (h << 8) + l)); |
a98cef7e KN |
139 | NEXT; |
140 | } | |
141 | ||
586cfdec AW |
142 | VM_DEFINE_INSTRUCTION (55, make_int64, "make-int64", 8, 0, 1) |
143 | { | |
144 | scm_t_uint64 v = 0; | |
145 | v += FETCH (); | |
146 | v <<= 8; v += FETCH (); | |
147 | v <<= 8; v += FETCH (); | |
148 | v <<= 8; v += FETCH (); | |
149 | v <<= 8; v += FETCH (); | |
150 | v <<= 8; v += FETCH (); | |
151 | v <<= 8; v += FETCH (); | |
152 | v <<= 8; v += FETCH (); | |
153 | PUSH (scm_from_int64 ((scm_t_int64) v)); | |
154 | NEXT; | |
155 | } | |
156 | ||
157 | VM_DEFINE_INSTRUCTION (56, make_uint64, "make-uint64", 8, 0, 1) | |
158 | { | |
159 | scm_t_uint64 v = 0; | |
160 | v += FETCH (); | |
161 | v <<= 8; v += FETCH (); | |
162 | v <<= 8; v += FETCH (); | |
163 | v <<= 8; v += FETCH (); | |
164 | v <<= 8; v += FETCH (); | |
165 | v <<= 8; v += FETCH (); | |
166 | v <<= 8; v += FETCH (); | |
167 | v <<= 8; v += FETCH (); | |
168 | PUSH (scm_from_uint64 (v)); | |
169 | NEXT; | |
170 | } | |
171 | ||
53e28ed9 | 172 | VM_DEFINE_INSTRUCTION (14, make_char8, "make-char8", 1, 0, 1) |
a98cef7e | 173 | { |
17e90c5e | 174 | PUSH (SCM_MAKE_CHAR (FETCH ())); |
a98cef7e KN |
175 | NEXT; |
176 | } | |
177 | ||
53e28ed9 | 178 | VM_DEFINE_INSTRUCTION (15, list, "list", 2, -1, 1) |
cb4cca12 | 179 | { |
23b587b0 LC |
180 | unsigned h = FETCH (); |
181 | unsigned l = FETCH (); | |
182 | unsigned len = ((h << 8) + l); | |
183 | POP_LIST (len); | |
cb4cca12 KN |
184 | NEXT; |
185 | } | |
186 | ||
53e28ed9 | 187 | VM_DEFINE_INSTRUCTION (16, vector, "vector", 2, -1, 1) |
cb4cca12 | 188 | { |
23b587b0 LC |
189 | unsigned h = FETCH (); |
190 | unsigned l = FETCH (); | |
191 | unsigned len = ((h << 8) + l); | |
5338b62b AW |
192 | SCM vect; |
193 | ||
877ffa3f | 194 | SYNC_REGISTER (); |
5338b62b AW |
195 | sp++; sp -= len; |
196 | CHECK_UNDERFLOW (); | |
197 | vect = scm_make_vector (scm_from_uint (len), SCM_BOOL_F); | |
198 | memcpy (SCM_I_VECTOR_WELTS(vect), sp, sizeof(SCM) * len); | |
199 | NULLSTACK (len); | |
200 | *sp = vect; | |
201 | ||
cb4cca12 KN |
202 | NEXT; |
203 | } | |
204 | ||
53e28ed9 | 205 | VM_DEFINE_INSTRUCTION (17, list_mark, "list-mark", 0, 0, 0) |
cb4cca12 KN |
206 | { |
207 | POP_LIST_MARK (); | |
208 | NEXT; | |
209 | } | |
210 | ||
53e28ed9 | 211 | VM_DEFINE_INSTRUCTION (18, cons_mark, "cons-mark", 0, 0, 0) |
2bd859c8 AW |
212 | { |
213 | POP_CONS_MARK (); | |
214 | NEXT; | |
215 | } | |
216 | ||
53e28ed9 | 217 | VM_DEFINE_INSTRUCTION (19, vector_mark, "vector-mark", 0, 0, 0) |
cb4cca12 KN |
218 | { |
219 | POP_LIST_MARK (); | |
877ffa3f | 220 | SYNC_REGISTER (); |
cb4cca12 KN |
221 | *sp = scm_vector (*sp); |
222 | NEXT; | |
223 | } | |
224 | ||
53e28ed9 | 225 | VM_DEFINE_INSTRUCTION (20, list_break, "list-break", 0, 0, 0) |
cb4cca12 KN |
226 | { |
227 | SCM l; | |
228 | POP (l); | |
fb10a008 | 229 | PUSH_LIST (l, SCM_NULLP); |
cb4cca12 KN |
230 | NEXT; |
231 | } | |
232 | ||
a98cef7e KN |
233 | \f |
234 | /* | |
17e90c5e | 235 | * Variable access |
a98cef7e KN |
236 | */ |
237 | ||
17e90c5e KN |
238 | #define OBJECT_REF(i) objects[i] |
239 | #define OBJECT_SET(i,o) objects[i] = o | |
a98cef7e | 240 | |
af988bbf KN |
241 | #define LOCAL_REF(i) SCM_FRAME_VARIABLE (fp, i) |
242 | #define LOCAL_SET(i,o) SCM_FRAME_VARIABLE (fp, i) = o | |
a98cef7e | 243 | |
2d80426a LC |
244 | /* For the variable operations, we _must_ obviously avoid function calls to |
245 | `scm_variable_ref ()', `scm_variable_bound_p ()' and friends which do | |
246 | nothing more than the corresponding macros. */ | |
247 | #define VARIABLE_REF(v) SCM_VARIABLE_REF (v) | |
248 | #define VARIABLE_SET(v,o) SCM_VARIABLE_SET (v, o) | |
249 | #define VARIABLE_BOUNDP(v) (VARIABLE_REF (v) != SCM_UNDEFINED) | |
a98cef7e | 250 | |
17e90c5e | 251 | /* ref */ |
a98cef7e | 252 | |
53e28ed9 | 253 | VM_DEFINE_INSTRUCTION (21, object_ref, "object-ref", 1, 0, 1) |
a98cef7e | 254 | { |
a52b2d3d | 255 | register unsigned objnum = FETCH (); |
0b5f0e49 LC |
256 | CHECK_OBJECT (objnum); |
257 | PUSH (OBJECT_REF (objnum)); | |
17e90c5e | 258 | NEXT; |
a98cef7e KN |
259 | } |
260 | ||
53e28ed9 | 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 | ||
53e28ed9 | 268 | VM_DEFINE_INSTRUCTION (23, external_ref, "external-ref", 1, 0, 1) |
a98cef7e | 269 | { |
17e90c5e KN |
270 | unsigned int i; |
271 | SCM e = external; | |
272 | for (i = FETCH (); i; i--) | |
2a63758b KN |
273 | { |
274 | CHECK_EXTERNAL(e); | |
275 | e = SCM_CDR (e); | |
276 | } | |
277 | CHECK_EXTERNAL(e); | |
17e90c5e | 278 | PUSH (SCM_CAR (e)); |
a1a482e0 | 279 | ASSERT_BOUND (*sp); |
a98cef7e KN |
280 | NEXT; |
281 | } | |
282 | ||
53e28ed9 | 283 | VM_DEFINE_INSTRUCTION (24, variable_ref, "variable-ref", 0, 0, 1) |
a98cef7e | 284 | { |
17e90c5e | 285 | SCM x = *sp; |
238e7a11 | 286 | |
2d80426a | 287 | if (!VARIABLE_BOUNDP (x)) |
17e90c5e | 288 | { |
da8b4747 | 289 | finish_args = scm_list_1 (x); |
e06e857c | 290 | /* Was: finish_args = SCM_LIST1 (SCM_CAR (x)); */ |
17e90c5e KN |
291 | goto vm_error_unbound; |
292 | } | |
238e7a11 LC |
293 | else |
294 | { | |
2d80426a | 295 | SCM o = VARIABLE_REF (x); |
238e7a11 LC |
296 | *sp = o; |
297 | } | |
298 | ||
a98cef7e KN |
299 | NEXT; |
300 | } | |
301 | ||
53e28ed9 | 302 | VM_DEFINE_INSTRUCTION (25, toplevel_ref, "toplevel-ref", 1, 0, 1) |
9cc649b8 | 303 | { |
6297d229 | 304 | unsigned objnum = FETCH (); |
fd358575 | 305 | SCM what; |
9cc649b8 | 306 | CHECK_OBJECT (objnum); |
fd358575 | 307 | what = OBJECT_REF (objnum); |
9cc649b8 | 308 | |
fd358575 | 309 | if (!SCM_VARIABLEP (what)) |
9cc649b8 | 310 | { |
d0168f3d | 311 | SYNC_REGISTER (); |
b7393ea1 | 312 | what = resolve_variable (what, scm_program_module (program)); |
fd358575 | 313 | if (!VARIABLE_BOUNDP (what)) |
9cc649b8 | 314 | { |
da8b4747 | 315 | finish_args = scm_list_1 (what); |
9cc649b8 AW |
316 | goto vm_error_unbound; |
317 | } | |
fd358575 | 318 | OBJECT_SET (objnum, what); |
9cc649b8 AW |
319 | } |
320 | ||
fd358575 | 321 | PUSH (VARIABLE_REF (what)); |
9cc649b8 AW |
322 | NEXT; |
323 | } | |
324 | ||
17e90c5e KN |
325 | /* set */ |
326 | ||
53e28ed9 | 327 | VM_DEFINE_INSTRUCTION (26, local_set, "local-set", 1, 1, 0) |
a98cef7e | 328 | { |
17e90c5e KN |
329 | LOCAL_SET (FETCH (), *sp); |
330 | DROP (); | |
a98cef7e KN |
331 | NEXT; |
332 | } | |
333 | ||
53e28ed9 | 334 | VM_DEFINE_INSTRUCTION (27, external_set, "external-set", 1, 1, 0) |
a98cef7e | 335 | { |
17e90c5e KN |
336 | unsigned int i; |
337 | SCM e = external; | |
338 | for (i = FETCH (); i; i--) | |
ac02b386 KN |
339 | { |
340 | CHECK_EXTERNAL(e); | |
341 | e = SCM_CDR (e); | |
342 | } | |
343 | CHECK_EXTERNAL(e); | |
17e90c5e KN |
344 | SCM_SETCAR (e, *sp); |
345 | DROP (); | |
a98cef7e KN |
346 | NEXT; |
347 | } | |
348 | ||
53e28ed9 | 349 | VM_DEFINE_INSTRUCTION (28, variable_set, "variable-set", 0, 1, 0) |
a98cef7e | 350 | { |
2d80426a | 351 | VARIABLE_SET (sp[0], sp[-1]); |
11ea1aba | 352 | DROPN (2); |
a98cef7e KN |
353 | NEXT; |
354 | } | |
355 | ||
53e28ed9 | 356 | VM_DEFINE_INSTRUCTION (29, toplevel_set, "toplevel-set", 1, 1, 0) |
9cc649b8 | 357 | { |
6297d229 | 358 | unsigned objnum = FETCH (); |
fd358575 | 359 | SCM what; |
9cc649b8 | 360 | CHECK_OBJECT (objnum); |
fd358575 | 361 | what = OBJECT_REF (objnum); |
9cc649b8 | 362 | |
fd358575 | 363 | if (!SCM_VARIABLEP (what)) |
9cc649b8 | 364 | { |
6287726a | 365 | SYNC_BEFORE_GC (); |
b7393ea1 | 366 | what = resolve_variable (what, scm_program_module (program)); |
fd358575 | 367 | OBJECT_SET (objnum, what); |
9cc649b8 AW |
368 | } |
369 | ||
fd358575 | 370 | VARIABLE_SET (what, *sp); |
9cc649b8 AW |
371 | DROP (); |
372 | NEXT; | |
373 | } | |
374 | ||
a98cef7e KN |
375 | \f |
376 | /* | |
377 | * branch and jump | |
378 | */ | |
379 | ||
efbd5892 AW |
380 | /* offset must be a signed short!!! */ |
381 | #define FETCH_OFFSET(offset) \ | |
17e90c5e | 382 | { \ |
41f248a8 KN |
383 | int h = FETCH (); \ |
384 | int l = FETCH (); \ | |
efbd5892 AW |
385 | offset = (h << 8) + l; \ |
386 | } | |
387 | ||
388 | #define BR(p) \ | |
389 | { \ | |
390 | signed short offset; \ | |
391 | FETCH_OFFSET (offset); \ | |
17e90c5e KN |
392 | if (p) \ |
393 | ip += offset; \ | |
11ea1aba | 394 | NULLSTACK (1); \ |
17e90c5e KN |
395 | DROP (); \ |
396 | NEXT; \ | |
397 | } | |
398 | ||
53e28ed9 | 399 | VM_DEFINE_INSTRUCTION (31, br, "br", 2, 0, 0) |
41f248a8 KN |
400 | { |
401 | int h = FETCH (); | |
402 | int l = FETCH (); | |
403 | ip += (signed short) (h << 8) + l; | |
404 | NEXT; | |
405 | } | |
406 | ||
53e28ed9 | 407 | VM_DEFINE_INSTRUCTION (32, br_if, "br-if", 2, 0, 0) |
a98cef7e | 408 | { |
17e90c5e | 409 | BR (!SCM_FALSEP (*sp)); |
a98cef7e KN |
410 | } |
411 | ||
53e28ed9 | 412 | VM_DEFINE_INSTRUCTION (33, br_if_not, "br-if-not", 2, 0, 0) |
a98cef7e | 413 | { |
17e90c5e | 414 | BR (SCM_FALSEP (*sp)); |
a98cef7e KN |
415 | } |
416 | ||
53e28ed9 | 417 | VM_DEFINE_INSTRUCTION (34, br_if_eq, "br-if-eq", 2, 0, 0) |
a98cef7e | 418 | { |
2c0f99a2 AW |
419 | sp--; /* underflow? */ |
420 | BR (SCM_EQ_P (sp[0], sp[1])); | |
a98cef7e KN |
421 | } |
422 | ||
53e28ed9 | 423 | VM_DEFINE_INSTRUCTION (35, br_if_not_eq, "br-if-not-eq", 2, 0, 0) |
a98cef7e | 424 | { |
2c0f99a2 AW |
425 | sp--; /* underflow? */ |
426 | BR (!SCM_EQ_P (sp[0], sp[1])); | |
17e90c5e KN |
427 | } |
428 | ||
53e28ed9 | 429 | VM_DEFINE_INSTRUCTION (36, br_if_null, "br-if-null", 2, 0, 0) |
17e90c5e KN |
430 | { |
431 | BR (SCM_NULLP (*sp)); | |
432 | } | |
433 | ||
53e28ed9 | 434 | VM_DEFINE_INSTRUCTION (37, br_if_not_null, "br-if-not-null", 2, 0, 0) |
17e90c5e KN |
435 | { |
436 | BR (!SCM_NULLP (*sp)); | |
a98cef7e KN |
437 | } |
438 | ||
a98cef7e KN |
439 | \f |
440 | /* | |
441 | * Subprogram call | |
442 | */ | |
443 | ||
53e28ed9 | 444 | VM_DEFINE_INSTRUCTION (38, make_closure, "make-closure", 0, 1, 1) |
a98cef7e | 445 | { |
3d5ee0cd | 446 | SYNC_BEFORE_GC (); |
7edf2001 AW |
447 | SCM_NEWSMOB3 (*sp, scm_tc16_program, SCM_PROGRAM_OBJCODE (*sp), |
448 | SCM_PROGRAM_OBJTABLE (*sp), external); | |
17e90c5e | 449 | NEXT; |
a98cef7e KN |
450 | } |
451 | ||
53e28ed9 | 452 | VM_DEFINE_INSTRUCTION (39, call, "call", 1, -1, 1) |
a98cef7e | 453 | { |
3616e9e9 | 454 | SCM x; |
17e90c5e | 455 | nargs = FETCH (); |
a98cef7e KN |
456 | |
457 | vm_call: | |
c8b9df71 KN |
458 | x = sp[-nargs]; |
459 | ||
e311f5fa AW |
460 | SYNC_REGISTER (); |
461 | SCM_TICK; /* allow interrupt here */ | |
462 | ||
a98cef7e KN |
463 | /* |
464 | * Subprogram call | |
465 | */ | |
3616e9e9 | 466 | if (SCM_PROGRAM_P (x)) |
a98cef7e | 467 | { |
3616e9e9 | 468 | program = x; |
499a4c07 | 469 | CACHE_PROGRAM (); |
17e90c5e KN |
470 | INIT_ARGS (); |
471 | NEW_FRAME (); | |
17e90c5e KN |
472 | ENTER_HOOK (); |
473 | APPLY_HOOK (); | |
a98cef7e KN |
474 | NEXT; |
475 | } | |
d507b25f AW |
476 | #ifdef ENABLE_TRAMPOLINE |
477 | /* Seems to slow down the fibo test, dunno why */ | |
a98cef7e | 478 | /* |
659b4611 AW |
479 | * Subr call |
480 | */ | |
481 | switch (nargs) | |
482 | { | |
483 | case 0: | |
484 | { | |
485 | scm_t_trampoline_0 call = scm_trampoline_0 (x); | |
486 | if (call) | |
487 | { | |
488 | SYNC_ALL (); | |
489 | *sp = call (x); | |
490 | NEXT; | |
491 | } | |
492 | break; | |
493 | } | |
494 | case 1: | |
495 | { | |
496 | scm_t_trampoline_1 call = scm_trampoline_1 (x); | |
497 | if (call) | |
498 | { | |
499 | SCM arg1; | |
500 | POP (arg1); | |
501 | SYNC_ALL (); | |
502 | *sp = call (x, arg1); | |
503 | NEXT; | |
504 | } | |
505 | break; | |
506 | } | |
507 | case 2: | |
508 | { | |
509 | scm_t_trampoline_2 call = scm_trampoline_2 (x); | |
510 | if (call) | |
511 | { | |
512 | SCM arg1, arg2; | |
513 | POP (arg2); | |
514 | POP (arg1); | |
515 | SYNC_ALL (); | |
516 | *sp = call (x, arg1, arg2); | |
517 | NEXT; | |
518 | } | |
519 | break; | |
520 | } | |
521 | } | |
d507b25f | 522 | #endif |
659b4611 AW |
523 | /* |
524 | * Other interpreted or compiled call | |
a98cef7e | 525 | */ |
3616e9e9 | 526 | if (!SCM_FALSEP (scm_procedure_p (x))) |
a98cef7e | 527 | { |
f41cb00c LC |
528 | /* At this point, the stack contains the procedure and each one of its |
529 | arguments. */ | |
17e90c5e | 530 | POP_LIST (nargs); |
1865ad56 | 531 | SYNC_REGISTER (); |
887ce75a AW |
532 | /* keep args on stack so they are marked */ |
533 | sp[-1] = scm_apply (x, sp[0], SCM_EOL); | |
66db076a | 534 | NULLSTACK_FOR_NONLOCAL_EXIT (); |
887ce75a | 535 | DROP (); |
42906d74 AW |
536 | if (SCM_UNLIKELY (SCM_VALUESP (*sp))) |
537 | { | |
538 | /* truncate values */ | |
539 | SCM values; | |
540 | POP (values); | |
541 | values = scm_struct_ref (values, SCM_INUM0); | |
542 | if (scm_is_null (values)) | |
543 | goto vm_error_not_enough_values; | |
544 | PUSH (SCM_CAR (values)); | |
545 | } | |
17e90c5e | 546 | NEXT; |
a98cef7e KN |
547 | } |
548 | /* | |
549 | * Continuation call | |
550 | */ | |
3616e9e9 | 551 | if (SCM_VM_CONT_P (x)) |
a98cef7e | 552 | { |
fcd4901b | 553 | program = x; |
f03c31db | 554 | vm_call_continuation: |
a98cef7e | 555 | /* Check the number of arguments */ |
f03c31db | 556 | /* FIXME multiple args */ |
382693fe | 557 | if (nargs != 1) |
fcd4901b | 558 | scm_wrong_num_args (program); |
a98cef7e KN |
559 | |
560 | /* Reinstate the continuation */ | |
17e90c5e | 561 | EXIT_HOOK (); |
fcd4901b | 562 | reinstate_vm_cont (vp, program); |
3d5ee0cd | 563 | CACHE_REGISTER (); |
af988bbf | 564 | program = SCM_FRAME_PROGRAM (fp); |
3616e9e9 | 565 | CACHE_PROGRAM (); |
a98cef7e KN |
566 | NEXT; |
567 | } | |
568 | ||
66292535 | 569 | program = x; |
17e90c5e | 570 | goto vm_error_wrong_type_apply; |
a98cef7e KN |
571 | } |
572 | ||
53e28ed9 | 573 | VM_DEFINE_INSTRUCTION (40, goto_args, "goto/args", 1, -1, 1) |
a98cef7e | 574 | { |
f41cb00c | 575 | register SCM x; |
17e90c5e | 576 | nargs = FETCH (); |
f03c31db | 577 | vm_goto_args: |
3616e9e9 | 578 | x = sp[-nargs]; |
17e90c5e | 579 | |
28a2f57b | 580 | SYNC_REGISTER (); |
17e90c5e | 581 | SCM_TICK; /* allow interrupt here */ |
a98cef7e KN |
582 | |
583 | /* | |
17e90c5e | 584 | * Tail recursive call |
a98cef7e | 585 | */ |
17e90c5e | 586 | if (SCM_EQ_P (x, program)) |
a98cef7e | 587 | { |
f21dfea6 | 588 | int i; |
17e90c5e KN |
589 | |
590 | /* Move arguments */ | |
f21dfea6 KN |
591 | INIT_ARGS (); |
592 | sp -= bp->nargs - 1; | |
593 | for (i = 0; i < bp->nargs; i++) | |
594 | LOCAL_SET (i, sp[i]); | |
f41cb00c LC |
595 | |
596 | /* Drop the first argument and the program itself. */ | |
597 | sp -= 2; | |
5e390de6 AW |
598 | NULLSTACK (bp->nargs + 1); |
599 | ||
600 | /* Freshen the externals */ | |
53e28ed9 | 601 | external = SCM_PROGRAM_EXTERNALS (x); |
5e390de6 AW |
602 | for (i = 0; i < bp->nexts; i++) |
603 | CONS (external, SCM_UNDEFINED, external); | |
604 | SCM_FRAME_DATA_ADDRESS (fp)[0] = external; | |
a98cef7e | 605 | |
81d677eb AW |
606 | /* Init locals to valid SCM values */ |
607 | for (i = 0; i < bp->nlocs; i++) | |
608 | LOCAL_SET (i + bp->nargs, SCM_UNDEFINED); | |
609 | ||
f21dfea6 | 610 | /* Call itself */ |
17e90c5e | 611 | ip = bp->base; |
17e90c5e | 612 | APPLY_HOOK (); |
a98cef7e KN |
613 | NEXT; |
614 | } | |
28106f54 | 615 | |
17e90c5e | 616 | /* |
28106f54 | 617 | * Tail call, but not to self -- reuse the frame, keeping the ra and dl |
17e90c5e | 618 | */ |
3616e9e9 | 619 | if (SCM_PROGRAM_P (x)) |
17e90c5e | 620 | { |
28106f54 AW |
621 | SCM *data, *tail_args, *dl; |
622 | int i; | |
da320011 | 623 | scm_byte_t *ra, *mvra; |
11ea1aba AW |
624 | #ifdef VM_ENABLE_STACK_NULLING |
625 | SCM *old_sp; | |
626 | #endif | |
28106f54 | 627 | |
17e90c5e | 628 | EXIT_HOOK (); |
28106f54 AW |
629 | |
630 | /* save registers */ | |
631 | tail_args = stack_base + 2; | |
632 | ra = SCM_FRAME_RETURN_ADDRESS (fp); | |
da320011 | 633 | mvra = SCM_FRAME_MV_RETURN_ADDRESS (fp); |
28106f54 AW |
634 | dl = SCM_FRAME_DYNAMIC_LINK (fp); |
635 | ||
636 | /* switch programs */ | |
11ea1aba | 637 | program = x; |
28106f54 AW |
638 | CACHE_PROGRAM (); |
639 | INIT_ARGS (); | |
11ea1aba AW |
640 | /* delay updating the frame so that if INIT_ARGS has to cons up a rest |
641 | arg, going into GC, the stack still makes sense */ | |
642 | fp[-1] = program; | |
28106f54 AW |
643 | nargs = bp->nargs; |
644 | ||
11ea1aba AW |
645 | #ifdef VM_ENABLE_STACK_NULLING |
646 | old_sp = sp; | |
647 | CHECK_STACK_LEAK (); | |
648 | #endif | |
649 | ||
28106f54 AW |
650 | /* new registers -- logically this would be better later, but let's make |
651 | sure we have space for the locals now */ | |
652 | data = SCM_FRAME_DATA_ADDRESS (fp); | |
653 | ip = bp->base; | |
b1b942b7 | 654 | stack_base = data + 3; |
28106f54 AW |
655 | sp = stack_base; |
656 | CHECK_OVERFLOW (); | |
657 | ||
658 | /* copy args, bottom-up */ | |
659 | for (i = 0; i < nargs; i++) | |
660 | fp[i] = tail_args[i]; | |
661 | ||
11ea1aba AW |
662 | NULLSTACK (old_sp - sp); |
663 | ||
28106f54 AW |
664 | /* init locals */ |
665 | for (i = bp->nlocs; i; i--) | |
666 | data[-i] = SCM_UNDEFINED; | |
667 | ||
28106f54 | 668 | /* Set frame data */ |
b1b942b7 AW |
669 | data[3] = (SCM)ra; |
670 | data[2] = (SCM)mvra; | |
671 | data[1] = (SCM)dl; | |
11ea1aba AW |
672 | |
673 | /* Postpone initializing external vars, because if the CONS causes a GC, | |
674 | we want the stack marker to see the data array formatted as expected. */ | |
675 | data[0] = SCM_UNDEFINED; | |
53e28ed9 | 676 | external = SCM_PROGRAM_EXTERNALS (fp[-1]); |
11ea1aba AW |
677 | for (i = 0; i < bp->nexts; i++) |
678 | CONS (external, SCM_UNDEFINED, external); | |
28106f54 | 679 | data[0] = external; |
11ea1aba | 680 | |
28106f54 AW |
681 | ENTER_HOOK (); |
682 | APPLY_HOOK (); | |
683 | NEXT; | |
17e90c5e | 684 | } |
d507b25f AW |
685 | #ifdef ENABLE_TRAMPOLINE |
686 | /* This seems to actually slow down the fibo test -- dunno why */ | |
a98cef7e | 687 | /* |
659b4611 AW |
688 | * Subr call |
689 | */ | |
690 | switch (nargs) | |
691 | { | |
692 | case 0: | |
693 | { | |
694 | scm_t_trampoline_0 call = scm_trampoline_0 (x); | |
695 | if (call) | |
696 | { | |
697 | SYNC_ALL (); | |
698 | *sp = call (x); | |
699 | goto vm_return; | |
700 | } | |
701 | break; | |
702 | } | |
703 | case 1: | |
704 | { | |
705 | scm_t_trampoline_1 call = scm_trampoline_1 (x); | |
706 | if (call) | |
707 | { | |
708 | SCM arg1; | |
709 | POP (arg1); | |
710 | SYNC_ALL (); | |
711 | *sp = call (x, arg1); | |
712 | goto vm_return; | |
713 | } | |
714 | break; | |
715 | } | |
716 | case 2: | |
717 | { | |
718 | scm_t_trampoline_2 call = scm_trampoline_2 (x); | |
719 | if (call) | |
720 | { | |
721 | SCM arg1, arg2; | |
722 | POP (arg2); | |
723 | POP (arg1); | |
724 | SYNC_ALL (); | |
725 | *sp = call (x, arg1, arg2); | |
726 | goto vm_return; | |
727 | } | |
728 | break; | |
729 | } | |
730 | } | |
d507b25f | 731 | #endif |
659b4611 AW |
732 | |
733 | /* | |
734 | * Other interpreted or compiled call | |
a98cef7e | 735 | */ |
3616e9e9 | 736 | if (!SCM_FALSEP (scm_procedure_p (x))) |
a98cef7e | 737 | { |
17e90c5e | 738 | POP_LIST (nargs); |
1865ad56 | 739 | SYNC_REGISTER (); |
887ce75a | 740 | sp[-1] = scm_apply (x, sp[0], SCM_EOL); |
66db076a | 741 | NULLSTACK_FOR_NONLOCAL_EXIT (); |
887ce75a | 742 | DROP (); |
42906d74 AW |
743 | if (SCM_UNLIKELY (SCM_VALUESP (*sp))) |
744 | { | |
745 | /* multiple values returned to continuation */ | |
746 | SCM values; | |
747 | POP (values); | |
748 | values = scm_struct_ref (values, SCM_INUM0); | |
749 | nvalues = scm_ilength (values); | |
fb10a008 | 750 | PUSH_LIST (values, SCM_NULLP); |
42906d74 AW |
751 | goto vm_return_values; |
752 | } | |
a98cef7e KN |
753 | goto vm_return; |
754 | } | |
fcd4901b AW |
755 | |
756 | program = x; | |
757 | ||
a98cef7e KN |
758 | /* |
759 | * Continuation call | |
760 | */ | |
fcd4901b | 761 | if (SCM_VM_CONT_P (program)) |
f03c31db | 762 | goto vm_call_continuation; |
a98cef7e | 763 | |
17e90c5e KN |
764 | goto vm_error_wrong_type_apply; |
765 | } | |
766 | ||
53e28ed9 | 767 | VM_DEFINE_INSTRUCTION (41, goto_nargs, "goto/nargs", 0, 0, 1) |
efbd5892 AW |
768 | { |
769 | SCM x; | |
770 | POP (x); | |
771 | nargs = scm_to_int (x); | |
d51406fe | 772 | /* FIXME: should truncate values? */ |
efbd5892 AW |
773 | goto vm_goto_args; |
774 | } | |
775 | ||
53e28ed9 | 776 | VM_DEFINE_INSTRUCTION (42, call_nargs, "call/nargs", 0, 0, 1) |
efbd5892 AW |
777 | { |
778 | SCM x; | |
779 | POP (x); | |
780 | nargs = scm_to_int (x); | |
d51406fe | 781 | /* FIXME: should truncate values? */ |
efbd5892 AW |
782 | goto vm_call; |
783 | } | |
784 | ||
53e28ed9 | 785 | VM_DEFINE_INSTRUCTION (43, mv_call, "mv-call", 3, -1, 1) |
a222b0fa AW |
786 | { |
787 | SCM x; | |
efbd5892 | 788 | signed short offset; |
a222b0fa AW |
789 | |
790 | nargs = FETCH (); | |
efbd5892 | 791 | FETCH_OFFSET (offset); |
a222b0fa AW |
792 | |
793 | x = sp[-nargs]; | |
794 | ||
795 | /* | |
796 | * Subprogram call | |
797 | */ | |
798 | if (SCM_PROGRAM_P (x)) | |
799 | { | |
800 | program = x; | |
801 | CACHE_PROGRAM (); | |
802 | INIT_ARGS (); | |
803 | NEW_FRAME (); | |
b1b942b7 | 804 | SCM_FRAME_DATA_ADDRESS (fp)[2] = (SCM)(SCM_FRAME_RETURN_ADDRESS (fp) + offset); |
a222b0fa AW |
805 | ENTER_HOOK (); |
806 | APPLY_HOOK (); | |
807 | NEXT; | |
808 | } | |
809 | /* | |
810 | * Other interpreted or compiled call | |
811 | */ | |
812 | if (!SCM_FALSEP (scm_procedure_p (x))) | |
813 | { | |
814 | /* At this point, the stack contains the procedure and each one of its | |
815 | arguments. */ | |
a222b0fa | 816 | POP_LIST (nargs); |
a222b0fa | 817 | SYNC_REGISTER (); |
887ce75a | 818 | sp[-1] = scm_apply (x, sp[0], SCM_EOL); |
66db076a | 819 | NULLSTACK_FOR_NONLOCAL_EXIT (); |
887ce75a | 820 | DROP (); |
a222b0fa AW |
821 | if (SCM_VALUESP (*sp)) |
822 | { | |
823 | SCM values, len; | |
824 | POP (values); | |
825 | values = scm_struct_ref (values, SCM_INUM0); | |
826 | len = scm_length (values); | |
fb10a008 | 827 | PUSH_LIST (values, SCM_NULLP); |
a222b0fa AW |
828 | PUSH (len); |
829 | ip += offset; | |
830 | } | |
831 | NEXT; | |
832 | } | |
833 | /* | |
834 | * Continuation call | |
835 | */ | |
836 | if (SCM_VM_CONT_P (x)) | |
837 | { | |
838 | program = x; | |
839 | goto vm_call_continuation; | |
840 | } | |
841 | ||
842 | program = x; | |
843 | goto vm_error_wrong_type_apply; | |
844 | } | |
845 | ||
53e28ed9 | 846 | VM_DEFINE_INSTRUCTION (44, apply, "apply", 1, -1, 1) |
3616e9e9 | 847 | { |
c8b9df71 KN |
848 | int len; |
849 | SCM ls; | |
850 | POP (ls); | |
851 | ||
852 | nargs = FETCH (); | |
9a8cc8e7 | 853 | ASSERT (nargs >= 2); |
c8b9df71 KN |
854 | |
855 | len = scm_ilength (ls); | |
856 | if (len < 0) | |
857 | goto vm_error_wrong_type_arg; | |
858 | ||
fb10a008 | 859 | PUSH_LIST (ls, SCM_NULL_OR_NIL_P); |
c8b9df71 KN |
860 | |
861 | nargs += len - 2; | |
862 | goto vm_call; | |
3616e9e9 KN |
863 | } |
864 | ||
53e28ed9 | 865 | VM_DEFINE_INSTRUCTION (45, goto_apply, "goto/apply", 1, -1, 1) |
f03c31db AW |
866 | { |
867 | int len; | |
868 | SCM ls; | |
869 | POP (ls); | |
870 | ||
871 | nargs = FETCH (); | |
9a8cc8e7 | 872 | ASSERT (nargs >= 2); |
f03c31db AW |
873 | |
874 | len = scm_ilength (ls); | |
875 | if (len < 0) | |
876 | goto vm_error_wrong_type_arg; | |
877 | ||
fb10a008 | 878 | PUSH_LIST (ls, SCM_NULL_OR_NIL_P); |
f03c31db AW |
879 | |
880 | nargs += len - 2; | |
881 | goto vm_goto_args; | |
882 | } | |
883 | ||
53e28ed9 | 884 | VM_DEFINE_INSTRUCTION (46, call_cc, "call/cc", 0, 1, 1) |
17e90c5e | 885 | { |
76282387 AW |
886 | int first; |
887 | SCM proc, cont; | |
888 | POP (proc); | |
889 | SYNC_ALL (); | |
890 | cont = scm_make_continuation (&first); | |
891 | if (first) | |
892 | { | |
893 | PUSH (proc); | |
894 | PUSH (cont); | |
895 | nargs = 1; | |
896 | goto vm_call; | |
897 | } | |
11ea1aba AW |
898 | ASSERT (sp == vp->sp); |
899 | ASSERT (fp == vp->fp); | |
76282387 AW |
900 | else if (SCM_VALUESP (cont)) |
901 | { | |
902 | /* multiple values returned to continuation */ | |
903 | SCM values; | |
904 | values = scm_struct_ref (cont, SCM_INUM0); | |
905 | if (SCM_NULLP (values)) | |
9a8cc8e7 | 906 | goto vm_error_no_values; |
76282387 AW |
907 | /* non-tail context does not accept multiple values? */ |
908 | PUSH (SCM_CAR (values)); | |
909 | NEXT; | |
910 | } | |
911 | else | |
912 | { | |
913 | PUSH (cont); | |
914 | NEXT; | |
915 | } | |
a98cef7e KN |
916 | } |
917 | ||
53e28ed9 | 918 | VM_DEFINE_INSTRUCTION (47, goto_cc, "goto/cc", 0, 1, 1) |
f03c31db | 919 | { |
76282387 AW |
920 | int first; |
921 | SCM proc, cont; | |
922 | POP (proc); | |
923 | SYNC_ALL (); | |
924 | cont = scm_make_continuation (&first); | |
66db076a AW |
925 | ASSERT (sp == vp->sp); |
926 | ASSERT (fp == vp->fp); | |
76282387 AW |
927 | if (first) |
928 | { | |
929 | PUSH (proc); | |
930 | PUSH (cont); | |
931 | nargs = 1; | |
932 | goto vm_goto_args; | |
933 | } | |
934 | else if (SCM_VALUESP (cont)) | |
935 | { | |
936 | /* multiple values returned to continuation */ | |
937 | SCM values; | |
938 | values = scm_struct_ref (cont, SCM_INUM0); | |
939 | nvalues = scm_ilength (values); | |
fb10a008 | 940 | PUSH_LIST (values, SCM_NULLP); |
76282387 AW |
941 | goto vm_return_values; |
942 | } | |
943 | else | |
944 | { | |
945 | PUSH (cont); | |
946 | goto vm_return; | |
947 | } | |
f03c31db AW |
948 | } |
949 | ||
131f7d6c | 950 | VM_DEFINE_INSTRUCTION (48, return, "return", 0, 1, 1) |
a98cef7e | 951 | { |
a98cef7e | 952 | vm_return: |
17e90c5e KN |
953 | EXIT_HOOK (); |
954 | RETURN_HOOK (); | |
ef7e1868 AW |
955 | SYNC_REGISTER (); |
956 | SCM_TICK; /* allow interrupt here */ | |
f13c269b AW |
957 | { |
958 | SCM ret, *data; | |
959 | data = SCM_FRAME_DATA_ADDRESS (fp); | |
960 | ||
961 | POP (ret); | |
11ea1aba | 962 | ASSERT (sp == stack_base); |
b1b942b7 | 963 | ASSERT (stack_base == data + 3); |
f13c269b AW |
964 | |
965 | /* Restore registers */ | |
966 | sp = SCM_FRAME_LOWER_ADDRESS (fp); | |
b1b942b7 AW |
967 | ip = SCM_FRAME_BYTE_CAST (data[3]); |
968 | fp = SCM_FRAME_STACK_CAST (data[1]); | |
11ea1aba AW |
969 | { |
970 | #ifdef VM_ENABLE_STACK_NULLING | |
971 | int nullcount = stack_base - sp; | |
972 | #endif | |
973 | stack_base = SCM_FRAME_UPPER_ADDRESS (fp) - 1; | |
974 | NULLSTACK (nullcount); | |
975 | } | |
f13c269b AW |
976 | |
977 | /* Set return value (sp is already pushed) */ | |
978 | *sp = ret; | |
979 | } | |
17e90c5e | 980 | |
15df3447 | 981 | /* Restore the last program */ |
af988bbf | 982 | program = SCM_FRAME_PROGRAM (fp); |
499a4c07 | 983 | CACHE_PROGRAM (); |
af988bbf | 984 | CACHE_EXTERNAL (); |
7e4760e4 | 985 | CHECK_IP (); |
a98cef7e KN |
986 | NEXT; |
987 | } | |
17e90c5e | 988 | |
53e28ed9 | 989 | VM_DEFINE_INSTRUCTION (49, return_values, "return/values", 1, -1, -1) |
a222b0fa | 990 | { |
ef24c01b AW |
991 | /* nvalues declared at top level, because for some reason gcc seems to think |
992 | that perhaps it might be used without declaration. Fooey to that, I say. */ | |
993 | SCM *data; | |
994 | ||
995 | nvalues = FETCH (); | |
996 | vm_return_values: | |
a222b0fa AW |
997 | EXIT_HOOK (); |
998 | RETURN_HOOK (); | |
ef24c01b AW |
999 | |
1000 | data = SCM_FRAME_DATA_ADDRESS (fp); | |
b1b942b7 | 1001 | ASSERT (stack_base == data + 3); |
a222b0fa | 1002 | |
b1b942b7 AW |
1003 | /* data[2] is the mv return address */ |
1004 | if (nvalues != 1 && data[2]) | |
ef24c01b AW |
1005 | { |
1006 | int i; | |
1007 | /* Restore registers */ | |
1008 | sp = SCM_FRAME_LOWER_ADDRESS (fp) - 1; | |
b1b942b7 AW |
1009 | ip = SCM_FRAME_BYTE_CAST (data[2]); /* multiple value ra */ |
1010 | fp = SCM_FRAME_STACK_CAST (data[1]); | |
a222b0fa | 1011 | |
ef24c01b AW |
1012 | /* Push return values, and the number of values */ |
1013 | for (i = 0; i < nvalues; i++) | |
1014 | *++sp = stack_base[1+i]; | |
1015 | *++sp = SCM_I_MAKINUM (nvalues); | |
a222b0fa | 1016 | |
ef24c01b | 1017 | /* Finally set new stack_base */ |
11ea1aba | 1018 | NULLSTACK (stack_base - sp + nvalues + 1); |
ef24c01b AW |
1019 | stack_base = SCM_FRAME_UPPER_ADDRESS (fp) - 1; |
1020 | } | |
1021 | else if (nvalues >= 1) | |
1022 | { | |
1023 | /* Multiple values for a single-valued continuation -- here's where I | |
1024 | break with guile tradition and try and do something sensible. (Also, | |
1025 | this block handles the single-valued return to an mv | |
1026 | continuation.) */ | |
1027 | /* Restore registers */ | |
1028 | sp = SCM_FRAME_LOWER_ADDRESS (fp) - 1; | |
b1b942b7 AW |
1029 | ip = SCM_FRAME_BYTE_CAST (data[3]); /* single value ra */ |
1030 | fp = SCM_FRAME_STACK_CAST (data[1]); | |
a222b0fa | 1031 | |
ef24c01b AW |
1032 | /* Push first value */ |
1033 | *++sp = stack_base[1]; | |
a222b0fa | 1034 | |
ef24c01b | 1035 | /* Finally set new stack_base */ |
9b10d0bc | 1036 | NULLSTACK (stack_base - sp + nvalues + 1); |
ef24c01b AW |
1037 | stack_base = SCM_FRAME_UPPER_ADDRESS (fp) - 1; |
1038 | } | |
1039 | else | |
1040 | goto vm_error_no_values; | |
a222b0fa AW |
1041 | |
1042 | /* Restore the last program */ | |
1043 | program = SCM_FRAME_PROGRAM (fp); | |
1044 | CACHE_PROGRAM (); | |
1045 | CACHE_EXTERNAL (); | |
1046 | CHECK_IP (); | |
1047 | NEXT; | |
1048 | } | |
1049 | ||
53e28ed9 | 1050 | VM_DEFINE_INSTRUCTION (50, return_values_star, "return/values*", 1, -1, -1) |
ef24c01b AW |
1051 | { |
1052 | SCM l; | |
1053 | ||
1054 | nvalues = FETCH (); | |
11ea1aba | 1055 | ASSERT (nvalues >= 1); |
ef24c01b AW |
1056 | |
1057 | nvalues--; | |
1058 | POP (l); | |
1059 | while (SCM_CONSP (l)) | |
1060 | { | |
1061 | PUSH (SCM_CAR (l)); | |
1062 | l = SCM_CDR (l); | |
1063 | nvalues++; | |
1064 | } | |
fb10a008 | 1065 | if (SCM_UNLIKELY (!SCM_NULL_OR_NIL_P (l))) { |
e06e857c | 1066 | finish_args = scm_list_1 (l); |
fb10a008 AW |
1067 | goto vm_error_improper_list; |
1068 | } | |
ef24c01b AW |
1069 | |
1070 | goto vm_return_values; | |
1071 | } | |
1072 | ||
53e28ed9 | 1073 | VM_DEFINE_INSTRUCTION (51, truncate_values, "truncate-values", 2, -1, -1) |
d51406fe AW |
1074 | { |
1075 | SCM x; | |
1076 | int nbinds, rest; | |
1077 | POP (x); | |
1078 | nvalues = scm_to_int (x); | |
1079 | nbinds = FETCH (); | |
1080 | rest = FETCH (); | |
1081 | ||
1082 | if (rest) | |
1083 | nbinds--; | |
1084 | ||
1085 | if (nvalues < nbinds) | |
1086 | goto vm_error_not_enough_values; | |
1087 | ||
1088 | if (rest) | |
1089 | POP_LIST (nvalues - nbinds); | |
1090 | else | |
1091 | DROPN (nvalues - nbinds); | |
1092 | ||
1093 | NEXT; | |
1094 | } | |
1095 | ||
a9b0f876 AW |
1096 | VM_DEFINE_INSTRUCTION (52, long_object_ref, "long-object-ref", 2, 0, 1) |
1097 | { | |
1098 | unsigned int objnum = FETCH (); | |
1099 | objnum <<= 8; | |
1100 | objnum += FETCH (); | |
1101 | CHECK_OBJECT (objnum); | |
1102 | PUSH (OBJECT_REF (objnum)); | |
1103 | NEXT; | |
1104 | } | |
1105 | ||
1106 | VM_DEFINE_INSTRUCTION (53, long_toplevel_ref, "long-toplevel-ref", 2, 0, 1) | |
1107 | { | |
1108 | SCM what; | |
1109 | unsigned int objnum = FETCH (); | |
1110 | objnum <<= 8; | |
1111 | objnum += FETCH (); | |
1112 | CHECK_OBJECT (objnum); | |
1113 | what = OBJECT_REF (objnum); | |
1114 | ||
1115 | if (!SCM_VARIABLEP (what)) | |
1116 | { | |
1117 | SYNC_REGISTER (); | |
1118 | what = resolve_variable (what, scm_program_module (program)); | |
1119 | if (!VARIABLE_BOUNDP (what)) | |
1120 | { | |
1121 | finish_args = scm_list_1 (what); | |
1122 | goto vm_error_unbound; | |
1123 | } | |
1124 | OBJECT_SET (objnum, what); | |
1125 | } | |
1126 | ||
1127 | PUSH (VARIABLE_REF (what)); | |
1128 | NEXT; | |
1129 | } | |
1130 | ||
1131 | VM_DEFINE_INSTRUCTION (54, long_toplevel_set, "long-toplevel-set", 2, 1, 0) | |
1132 | { | |
1133 | SCM what; | |
1134 | unsigned int objnum = FETCH (); | |
1135 | objnum <<= 8; | |
1136 | objnum += FETCH (); | |
1137 | CHECK_OBJECT (objnum); | |
1138 | what = OBJECT_REF (objnum); | |
1139 | ||
1140 | if (!SCM_VARIABLEP (what)) | |
1141 | { | |
1142 | SYNC_BEFORE_GC (); | |
1143 | what = resolve_variable (what, scm_program_module (program)); | |
1144 | OBJECT_SET (objnum, what); | |
1145 | } | |
1146 | ||
1147 | VARIABLE_SET (what, *sp); | |
1148 | DROP (); | |
1149 | NEXT; | |
1150 | } | |
1151 | ||
53e28ed9 AW |
1152 | /* |
1153 | (defun renumber-ops () | |
1154 | "start from top of buffer and renumber 'VM_DEFINE_FOO (\n' sequences" | |
1155 | (interactive "") | |
1156 | (save-excursion | |
1157 | (let ((counter -1)) (goto-char (point-min)) | |
1158 | (while (re-search-forward "^VM_DEFINE_[^ ]+ (\\([^,]+\\)," (point-max) t) | |
1159 | (replace-match | |
1160 | (number-to-string (setq counter (1+ counter))) | |
1161 | t t nil 1))))) | |
1162 | */ | |
17e90c5e KN |
1163 | /* |
1164 | Local Variables: | |
1165 | c-file-style: "gnu" | |
1166 | End: | |
1167 | */ |