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8f5cfc81 | 1 | /* Copyright (C) 2001 Free Software Foundation, Inc. |
a98cef7e KN |
2 | * |
3 | * This program is free software; you can redistribute it and/or modify | |
4 | * it under the terms of the GNU General Public License as published by | |
5 | * the Free Software Foundation; either version 2, or (at your option) | |
6 | * any later version. | |
7 | * | |
8 | * This program is distributed in the hope that it will be useful, | |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
11 | * GNU General Public License for more details. | |
12 | * | |
13 | * You should have received a copy of the GNU General Public License | |
14 | * along with this software; see the file COPYING. If not, write to | |
15 | * the Free Software Foundation, Inc., 59 Temple Place, Suite 330, | |
16 | * Boston, MA 02111-1307 USA | |
17 | * | |
18 | * As a special exception, the Free Software Foundation gives permission | |
19 | * for additional uses of the text contained in its release of GUILE. | |
20 | * | |
21 | * The exception is that, if you link the GUILE library with other files | |
22 | * to produce an executable, this does not by itself cause the | |
23 | * resulting executable to be covered by the GNU General Public License. | |
24 | * Your use of that executable is in no way restricted on account of | |
25 | * linking the GUILE library code into it. | |
26 | * | |
27 | * This exception does not however invalidate any other reasons why | |
28 | * the executable file might be covered by the GNU General Public License. | |
29 | * | |
30 | * This exception applies only to the code released by the | |
31 | * Free Software Foundation under the name GUILE. If you copy | |
32 | * code from other Free Software Foundation releases into a copy of | |
33 | * GUILE, as the General Public License permits, the exception does | |
34 | * not apply to the code that you add in this way. To avoid misleading | |
35 | * anyone as to the status of such modified files, you must delete | |
36 | * this exception notice from them. | |
37 | * | |
38 | * If you write modifications of your own for GUILE, it is your choice | |
39 | * whether to permit this exception to apply to your modifications. | |
40 | * If you do not wish that, delete this exception notice. */ | |
41 | ||
17e90c5e | 42 | #include <string.h> |
ac99cb0c KN |
43 | #include "envs.h" |
44 | #include "frames.h" | |
17e90c5e | 45 | #include "instructions.h" |
8f5cfc81 | 46 | #include "objcodes.h" |
ac99cb0c | 47 | #include "programs.h" |
a98cef7e KN |
48 | #include "vm.h" |
49 | ||
a98cef7e KN |
50 | /* I sometimes use this for debugging. */ |
51 | #define vm_puts(OBJ) \ | |
52 | { \ | |
53 | scm_display (OBJ, scm_def_errp); \ | |
54 | scm_newline (scm_def_errp); \ | |
55 | } | |
56 | ||
57 | \f | |
a98cef7e KN |
58 | /* |
59 | * VM Continuation | |
60 | */ | |
61 | ||
f9e8c09d | 62 | scm_t_bits scm_tc16_vm_cont; |
17e90c5e KN |
63 | |
64 | ||
65 | #define SCM_VM_CONT_P(OBJ) SCM_SMOB_PREDICATE (scm_tc16_vm_cont, OBJ) | |
3d5ee0cd | 66 | #define SCM_VM_CONT_VP(CONT) ((struct scm_vm *) SCM_CELL_WORD_1 (CONT)) |
a98cef7e KN |
67 | |
68 | static SCM | |
3d5ee0cd | 69 | capture_vm_cont (struct scm_vm *vp) |
a98cef7e KN |
70 | { |
71 | struct scm_vm *p = scm_must_malloc (sizeof (*p), "capture_vm_cont"); | |
3d5ee0cd | 72 | p->stack_size = vp->stack_limit - vp->sp; |
a98cef7e KN |
73 | p->stack_base = scm_must_malloc (p->stack_size * sizeof (SCM), |
74 | "capture_vm_cont"); | |
17e90c5e | 75 | p->stack_limit = p->stack_base + p->stack_size - 2; |
3d5ee0cd KN |
76 | p->ip = vp->ip; |
77 | p->sp = (SCM *) (vp->stack_limit - vp->sp); | |
78 | p->fp = (SCM *) (vp->stack_limit - vp->fp); | |
79 | memcpy (p->stack_base, vp->sp + 1, vp->stack_size * sizeof (SCM)); | |
17e90c5e | 80 | SCM_RETURN_NEWSMOB (scm_tc16_vm_cont, p); |
a98cef7e KN |
81 | } |
82 | ||
83 | static void | |
3d5ee0cd | 84 | reinstate_vm_cont (struct scm_vm *vp, SCM cont) |
a98cef7e | 85 | { |
3d5ee0cd KN |
86 | struct scm_vm *p = SCM_VM_CONT_VP (cont); |
87 | if (vp->stack_size < p->stack_size) | |
a98cef7e | 88 | { |
17e90c5e | 89 | /* puts ("FIXME: Need to expand"); */ |
a98cef7e KN |
90 | abort (); |
91 | } | |
3d5ee0cd KN |
92 | vp->ip = p->ip; |
93 | vp->sp = vp->stack_limit - (int) p->sp; | |
94 | vp->fp = vp->stack_limit - (int) p->fp; | |
95 | memcpy (vp->sp + 1, p->stack_base, p->stack_size * sizeof (SCM)); | |
a98cef7e KN |
96 | } |
97 | ||
98 | static SCM | |
17e90c5e | 99 | vm_cont_mark (SCM obj) |
a98cef7e KN |
100 | { |
101 | SCM *p; | |
3d5ee0cd KN |
102 | struct scm_vm *vp = SCM_VM_CONT_VP (obj); |
103 | for (p = vp->stack_base; p <= vp->stack_limit; p++) | |
a98cef7e KN |
104 | if (SCM_NIMP (*p)) |
105 | scm_gc_mark (*p); | |
106 | return SCM_BOOL_F; | |
107 | } | |
108 | ||
109 | static scm_sizet | |
17e90c5e | 110 | vm_cont_free (SCM obj) |
a98cef7e | 111 | { |
3d5ee0cd | 112 | struct scm_vm *p = SCM_VM_CONT_VP (obj); |
a98cef7e KN |
113 | int size = sizeof (struct scm_vm) + p->stack_size * sizeof (SCM); |
114 | scm_must_free (p->stack_base); | |
115 | scm_must_free (p); | |
116 | return size; | |
117 | } | |
118 | ||
17e90c5e KN |
119 | \f |
120 | /* | |
121 | * VM Internal functions | |
122 | */ | |
123 | ||
41f248a8 | 124 | SCM_SYMBOL (sym_vm_run, "vm-run"); |
17e90c5e KN |
125 | SCM_SYMBOL (sym_vm_error, "vm-error"); |
126 | ||
127 | static scm_byte_t * | |
128 | vm_fetch_length (scm_byte_t *ip, size_t *lenp) | |
a98cef7e | 129 | { |
4bfb26f5 | 130 | /* NOTE: format defined in system/vm/conv.scm */ |
17e90c5e KN |
131 | *lenp = *ip++; |
132 | if (*lenp < 254) | |
133 | return ip; | |
134 | else if (*lenp == 254) | |
46cd9a34 KN |
135 | { |
136 | int b1 = *ip++; | |
137 | int b2 = *ip++; | |
138 | *lenp = (b1 << 8) + b2; | |
139 | } | |
17e90c5e | 140 | else |
46cd9a34 KN |
141 | { |
142 | int b1 = *ip++; | |
143 | int b2 = *ip++; | |
144 | int b3 = *ip++; | |
145 | int b4 = *ip++; | |
146 | *lenp = (b1 << 24) + (b2 << 16) + (b3 << 8) + b4; | |
147 | } | |
17e90c5e | 148 | return ip; |
a98cef7e KN |
149 | } |
150 | ||
af988bbf | 151 | static SCM |
a6df585a | 152 | vm_heapify_frames_1 (struct scm_vm *vp, SCM *fp, SCM *sp, SCM **destp) |
af988bbf | 153 | { |
a6df585a | 154 | SCM frame; |
af988bbf | 155 | SCM *dl = SCM_FRAME_DYNAMIC_LINK (fp); |
a6df585a KN |
156 | SCM *src = SCM_FRAME_UPPER_ADDRESS (fp); |
157 | SCM *dest = SCM_FRAME_LOWER_ADDRESS (fp); | |
af988bbf KN |
158 | |
159 | if (!dl) | |
160 | { | |
161 | /* The top frame */ | |
af988bbf KN |
162 | frame = scm_c_make_heap_frame (fp); |
163 | fp = SCM_HEAP_FRAME_POINTER (frame); | |
164 | SCM_FRAME_HEAP_LINK (fp) = SCM_BOOL_T; | |
165 | } | |
166 | else | |
167 | { | |
a6df585a | 168 | /* Child frames */ |
af988bbf KN |
169 | SCM link = SCM_FRAME_HEAP_LINK (dl); |
170 | if (!SCM_FALSEP (link)) | |
a6df585a | 171 | link = SCM_FRAME_LOWER_ADDRESS (dl)[-1]; /* self link */ |
af988bbf | 172 | else |
a6df585a | 173 | link = vm_heapify_frames_1 (vp, dl, dest - 1, &dest); |
af988bbf KN |
174 | frame = scm_c_make_heap_frame (fp); |
175 | fp = SCM_HEAP_FRAME_POINTER (frame); | |
176 | SCM_FRAME_HEAP_LINK (fp) = link; | |
177 | SCM_FRAME_DYNAMIC_LINK (fp) = SCM_HEAP_FRAME_POINTER (link); | |
178 | } | |
179 | ||
180 | /* Move stack data */ | |
a6df585a KN |
181 | for (; src <= sp; src++, dest++) |
182 | *dest = *src; | |
183 | *destp = dest; | |
af988bbf KN |
184 | |
185 | return frame; | |
186 | } | |
187 | ||
188 | static SCM | |
189 | vm_heapify_frames (SCM vm) | |
190 | { | |
191 | struct scm_vm *vp = SCM_VM_DATA (vm); | |
192 | if (SCM_FALSEP (SCM_FRAME_HEAP_LINK (vp->fp))) | |
193 | { | |
a6df585a KN |
194 | SCM *dest; |
195 | vp->this_frame = vm_heapify_frames_1 (vp, vp->fp, vp->sp, &dest); | |
af988bbf | 196 | vp->fp = SCM_HEAP_FRAME_POINTER (vp->this_frame); |
a6df585a | 197 | vp->sp = dest - 1; |
af988bbf KN |
198 | } |
199 | return vp->this_frame; | |
200 | } | |
201 | ||
a98cef7e KN |
202 | \f |
203 | /* | |
204 | * VM | |
205 | */ | |
206 | ||
c0a25ecc | 207 | #define VM_DEFAULT_STACK_SIZE (16 * 1024) |
17e90c5e KN |
208 | |
209 | #define VM_REGULAR_ENGINE 0 | |
210 | #define VM_DEBUG_ENGINE 1 | |
211 | ||
212 | #if 0 | |
213 | #define VM_NAME vm_regular_engine | |
214 | #define VM_ENGINE VM_REGULAR_ENGINE | |
215 | #include "vm_engine.c" | |
216 | #undef VM_NAME | |
217 | #undef VM_ENGINE | |
218 | #endif | |
219 | ||
220 | #define VM_NAME vm_debug_engine | |
221 | #define VM_ENGINE VM_DEBUG_ENGINE | |
222 | #include "vm_engine.c" | |
223 | #undef VM_NAME | |
224 | #undef VM_ENGINE | |
225 | ||
f9e8c09d | 226 | scm_t_bits scm_tc16_vm; |
a98cef7e | 227 | |
499a4c07 KN |
228 | static SCM the_vm; |
229 | ||
a98cef7e | 230 | static SCM |
17e90c5e KN |
231 | make_vm (void) |
232 | #define FUNC_NAME "make_vm" | |
a98cef7e | 233 | { |
17e90c5e | 234 | int i; |
3d5ee0cd KN |
235 | struct scm_vm *vp = SCM_MUST_MALLOC (sizeof (struct scm_vm)); |
236 | vp->stack_size = VM_DEFAULT_STACK_SIZE; | |
237 | vp->stack_base = SCM_MUST_MALLOC (vp->stack_size * sizeof (SCM)); | |
3616e9e9 KN |
238 | vp->stack_limit = vp->stack_base + vp->stack_size - 3; |
239 | vp->ip = NULL; | |
240 | vp->sp = vp->stack_base - 1; | |
241 | vp->fp = NULL; | |
3d5ee0cd KN |
242 | vp->time = 0; |
243 | vp->clock = 0; | |
244 | vp->options = SCM_EOL; | |
af988bbf | 245 | vp->this_frame = SCM_BOOL_F; |
ac99cb0c | 246 | vp->last_frame = SCM_BOOL_F; |
17e90c5e | 247 | for (i = 0; i < SCM_VM_NUM_HOOKS; i++) |
3d5ee0cd KN |
248 | vp->hooks[i] = SCM_BOOL_F; |
249 | SCM_RETURN_NEWSMOB (scm_tc16_vm, vp); | |
a98cef7e | 250 | } |
17e90c5e | 251 | #undef FUNC_NAME |
a98cef7e KN |
252 | |
253 | static SCM | |
17e90c5e | 254 | vm_mark (SCM obj) |
a98cef7e | 255 | { |
17e90c5e | 256 | int i; |
3d5ee0cd | 257 | struct scm_vm *vp = SCM_VM_DATA (obj); |
17e90c5e | 258 | |
af988bbf KN |
259 | /* mark the stack conservatively */ |
260 | scm_mark_locations ((SCM_STACKITEM *) vp->stack_base, | |
261 | sizeof (SCM) * (vp->sp - vp->stack_base + 1)); | |
a98cef7e | 262 | |
af988bbf | 263 | /* mark other objects */ |
17e90c5e | 264 | for (i = 0; i < SCM_VM_NUM_HOOKS; i++) |
3d5ee0cd | 265 | scm_gc_mark (vp->hooks[i]); |
af988bbf | 266 | scm_gc_mark (vp->this_frame); |
ac99cb0c | 267 | scm_gc_mark (vp->last_frame); |
3d5ee0cd | 268 | return vp->options; |
a98cef7e KN |
269 | } |
270 | ||
17e90c5e KN |
271 | static scm_sizet |
272 | vm_free (SCM obj) | |
273 | { | |
3d5ee0cd KN |
274 | struct scm_vm *vp = SCM_VM_DATA (obj); |
275 | int size = (sizeof (struct scm_vm) + vp->stack_size * sizeof (SCM)); | |
276 | scm_must_free (vp->stack_base); | |
277 | scm_must_free (vp); | |
17e90c5e KN |
278 | return size; |
279 | } | |
280 | ||
281 | SCM_SYMBOL (sym_debug, "debug"); | |
282 | ||
283 | SCM | |
284 | scm_vm_apply (SCM vm, SCM program, SCM args) | |
285 | #define FUNC_NAME "scm_vm_apply" | |
a98cef7e | 286 | { |
17e90c5e | 287 | SCM_VALIDATE_PROGRAM (1, program); |
41f248a8 | 288 | return vm_run (vm, program, args); |
a98cef7e | 289 | } |
17e90c5e | 290 | #undef FUNC_NAME |
a98cef7e KN |
291 | |
292 | /* Scheme interface */ | |
293 | ||
294 | SCM_DEFINE (scm_vm_version, "vm-version", 0, 0, 0, | |
17e90c5e KN |
295 | (void), |
296 | "") | |
a98cef7e KN |
297 | #define FUNC_NAME s_scm_vm_version |
298 | { | |
299 | return scm_makfrom0str (VERSION); | |
300 | } | |
301 | #undef FUNC_NAME | |
302 | ||
499a4c07 KN |
303 | SCM_DEFINE (scm_the_vm, "the-vm", 0, 0, 0, |
304 | (), | |
305 | "") | |
306 | #define FUNC_NAME s_scm_the_vm | |
307 | { | |
308 | return the_vm; | |
309 | } | |
310 | #undef FUNC_NAME | |
311 | ||
312 | ||
a98cef7e KN |
313 | SCM_DEFINE (scm_vm_p, "vm?", 1, 0, 0, |
314 | (SCM obj), | |
17e90c5e | 315 | "") |
a98cef7e KN |
316 | #define FUNC_NAME s_scm_vm_p |
317 | { | |
318 | return SCM_BOOL (SCM_VM_P (obj)); | |
319 | } | |
320 | #undef FUNC_NAME | |
321 | ||
322 | SCM_DEFINE (scm_make_vm, "make-vm", 0, 0, 0, | |
17e90c5e KN |
323 | (void), |
324 | "") | |
325 | #define FUNC_NAME s_scm_make_vm, | |
a98cef7e | 326 | { |
17e90c5e | 327 | return make_vm (); |
a98cef7e KN |
328 | } |
329 | #undef FUNC_NAME | |
330 | ||
17e90c5e | 331 | SCM_DEFINE (scm_vm_ip, "vm:ip", 1, 0, 0, |
a98cef7e | 332 | (SCM vm), |
17e90c5e KN |
333 | "") |
334 | #define FUNC_NAME s_scm_vm_ip | |
a98cef7e KN |
335 | { |
336 | SCM_VALIDATE_VM (1, vm); | |
17e90c5e | 337 | return scm_ulong2num ((unsigned long) SCM_VM_DATA (vm)->ip); |
a98cef7e KN |
338 | } |
339 | #undef FUNC_NAME | |
340 | ||
341 | SCM_DEFINE (scm_vm_sp, "vm:sp", 1, 0, 0, | |
342 | (SCM vm), | |
17e90c5e | 343 | "") |
a98cef7e KN |
344 | #define FUNC_NAME s_scm_vm_sp |
345 | { | |
346 | SCM_VALIDATE_VM (1, vm); | |
17e90c5e | 347 | return scm_ulong2num ((unsigned long) SCM_VM_DATA (vm)->sp); |
a98cef7e KN |
348 | } |
349 | #undef FUNC_NAME | |
350 | ||
351 | SCM_DEFINE (scm_vm_fp, "vm:fp", 1, 0, 0, | |
352 | (SCM vm), | |
17e90c5e | 353 | "") |
a98cef7e KN |
354 | #define FUNC_NAME s_scm_vm_fp |
355 | { | |
356 | SCM_VALIDATE_VM (1, vm); | |
17e90c5e | 357 | return scm_ulong2num ((unsigned long) SCM_VM_DATA (vm)->fp); |
a98cef7e KN |
358 | } |
359 | #undef FUNC_NAME | |
360 | ||
17e90c5e KN |
361 | #define VM_DEFINE_HOOK(n) \ |
362 | { \ | |
3d5ee0cd | 363 | struct scm_vm *vp; \ |
17e90c5e | 364 | SCM_VALIDATE_VM (1, vm); \ |
3d5ee0cd KN |
365 | vp = SCM_VM_DATA (vm); \ |
366 | if (SCM_FALSEP (vp->hooks[n])) \ | |
367 | vp->hooks[n] = scm_make_hook (SCM_MAKINUM (1)); \ | |
368 | return vp->hooks[n]; \ | |
17e90c5e KN |
369 | } |
370 | ||
371 | SCM_DEFINE (scm_vm_boot_hook, "vm-boot-hook", 1, 0, 0, | |
a98cef7e | 372 | (SCM vm), |
17e90c5e KN |
373 | "") |
374 | #define FUNC_NAME s_scm_vm_boot_hook | |
a98cef7e | 375 | { |
17e90c5e | 376 | VM_DEFINE_HOOK (SCM_VM_BOOT_HOOK); |
a98cef7e KN |
377 | } |
378 | #undef FUNC_NAME | |
379 | ||
17e90c5e KN |
380 | SCM_DEFINE (scm_vm_halt_hook, "vm-halt-hook", 1, 0, 0, |
381 | (SCM vm), | |
382 | "") | |
383 | #define FUNC_NAME s_scm_vm_halt_hook | |
a98cef7e | 384 | { |
17e90c5e | 385 | VM_DEFINE_HOOK (SCM_VM_HALT_HOOK); |
a98cef7e KN |
386 | } |
387 | #undef FUNC_NAME | |
388 | ||
17e90c5e | 389 | SCM_DEFINE (scm_vm_next_hook, "vm-next-hook", 1, 0, 0, |
a98cef7e | 390 | (SCM vm), |
17e90c5e KN |
391 | "") |
392 | #define FUNC_NAME s_scm_vm_next_hook | |
a98cef7e | 393 | { |
17e90c5e | 394 | VM_DEFINE_HOOK (SCM_VM_NEXT_HOOK); |
a98cef7e KN |
395 | } |
396 | #undef FUNC_NAME | |
397 | ||
7a0d0cee KN |
398 | SCM_DEFINE (scm_vm_break_hook, "vm-break-hook", 1, 0, 0, |
399 | (SCM vm), | |
400 | "") | |
401 | #define FUNC_NAME s_scm_vm_break_hook | |
402 | { | |
403 | VM_DEFINE_HOOK (SCM_VM_BREAK_HOOK); | |
404 | } | |
405 | #undef FUNC_NAME | |
406 | ||
17e90c5e KN |
407 | SCM_DEFINE (scm_vm_enter_hook, "vm-enter-hook", 1, 0, 0, |
408 | (SCM vm), | |
409 | "") | |
410 | #define FUNC_NAME s_scm_vm_enter_hook | |
a98cef7e | 411 | { |
17e90c5e | 412 | VM_DEFINE_HOOK (SCM_VM_ENTER_HOOK); |
a98cef7e KN |
413 | } |
414 | #undef FUNC_NAME | |
415 | ||
17e90c5e KN |
416 | SCM_DEFINE (scm_vm_apply_hook, "vm-apply-hook", 1, 0, 0, |
417 | (SCM vm), | |
418 | "") | |
419 | #define FUNC_NAME s_scm_vm_apply_hook | |
a98cef7e | 420 | { |
17e90c5e | 421 | VM_DEFINE_HOOK (SCM_VM_APPLY_HOOK); |
a98cef7e KN |
422 | } |
423 | #undef FUNC_NAME | |
424 | ||
17e90c5e | 425 | SCM_DEFINE (scm_vm_exit_hook, "vm-exit-hook", 1, 0, 0, |
a98cef7e | 426 | (SCM vm), |
17e90c5e KN |
427 | "") |
428 | #define FUNC_NAME s_scm_vm_exit_hook | |
a98cef7e | 429 | { |
17e90c5e | 430 | VM_DEFINE_HOOK (SCM_VM_EXIT_HOOK); |
a98cef7e KN |
431 | } |
432 | #undef FUNC_NAME | |
433 | ||
17e90c5e | 434 | SCM_DEFINE (scm_vm_return_hook, "vm-return-hook", 1, 0, 0, |
a98cef7e | 435 | (SCM vm), |
17e90c5e KN |
436 | "") |
437 | #define FUNC_NAME s_scm_vm_return_hook | |
a98cef7e | 438 | { |
17e90c5e | 439 | VM_DEFINE_HOOK (SCM_VM_RETURN_HOOK); |
a98cef7e KN |
440 | } |
441 | #undef FUNC_NAME | |
442 | ||
17e90c5e KN |
443 | SCM_DEFINE (scm_vm_option, "vm-option", 2, 0, 0, |
444 | (SCM vm, SCM key), | |
445 | "") | |
446 | #define FUNC_NAME s_scm_vm_option | |
a98cef7e KN |
447 | { |
448 | SCM_VALIDATE_VM (1, vm); | |
17e90c5e | 449 | return scm_assq_ref (SCM_VM_DATA (vm)->options, key); |
a98cef7e KN |
450 | } |
451 | #undef FUNC_NAME | |
452 | ||
17e90c5e KN |
453 | SCM_DEFINE (scm_set_vm_option_x, "set-vm-option!", 3, 0, 0, |
454 | (SCM vm, SCM key, SCM val), | |
455 | "") | |
456 | #define FUNC_NAME s_scm_set_vm_option_x | |
a98cef7e KN |
457 | { |
458 | SCM_VALIDATE_VM (1, vm); | |
17e90c5e KN |
459 | SCM_VM_DATA (vm)->options |
460 | = scm_assq_set_x (SCM_VM_DATA (vm)->options, key, val); | |
461 | return SCM_UNSPECIFIED; | |
a98cef7e KN |
462 | } |
463 | #undef FUNC_NAME | |
464 | ||
17e90c5e | 465 | SCM_DEFINE (scm_vm_stats, "vm-stats", 1, 0, 0, |
a98cef7e | 466 | (SCM vm), |
17e90c5e KN |
467 | "") |
468 | #define FUNC_NAME s_scm_vm_stats | |
a98cef7e | 469 | { |
17e90c5e KN |
470 | SCM stats; |
471 | ||
a98cef7e | 472 | SCM_VALIDATE_VM (1, vm); |
17e90c5e | 473 | |
f9e8c09d LC |
474 | stats = scm_make_vector (scm_from_int (2), SCM_UNSPECIFIED); |
475 | scm_vector_set_x (stats, scm_from_int (0), | |
476 | scm_from_ulong (SCM_VM_DATA (vm)->time)); | |
477 | scm_vector_set_x (stats, scm_from_int (1), | |
478 | scm_from_ulong (SCM_VM_DATA (vm)->clock)); | |
17e90c5e KN |
479 | |
480 | return stats; | |
a98cef7e KN |
481 | } |
482 | #undef FUNC_NAME | |
483 | ||
17e90c5e KN |
484 | #define VM_CHECK_RUNNING(vm) \ |
485 | if (!SCM_VM_DATA (vm)->ip) \ | |
486 | SCM_MISC_ERROR ("Not running", SCM_LIST1 (vm)) | |
487 | ||
af988bbf | 488 | SCM_DEFINE (scm_vm_this_frame, "vm-this-frame", 1, 0, 0, |
a98cef7e | 489 | (SCM vm), |
17e90c5e | 490 | "") |
af988bbf | 491 | #define FUNC_NAME s_scm_vm_this_frame |
a98cef7e KN |
492 | { |
493 | SCM_VALIDATE_VM (1, vm); | |
af988bbf | 494 | return SCM_VM_DATA (vm)->this_frame; |
ac99cb0c KN |
495 | } |
496 | #undef FUNC_NAME | |
497 | ||
498 | SCM_DEFINE (scm_vm_last_frame, "vm-last-frame", 1, 0, 0, | |
499 | (SCM vm), | |
500 | "") | |
501 | #define FUNC_NAME s_scm_vm_last_frame | |
502 | { | |
503 | SCM_VALIDATE_VM (1, vm); | |
504 | return SCM_VM_DATA (vm)->last_frame; | |
a98cef7e KN |
505 | } |
506 | #undef FUNC_NAME | |
507 | ||
17e90c5e KN |
508 | SCM_DEFINE (scm_vm_fetch_code, "vm-fetch-code", 1, 0, 0, |
509 | (SCM vm), | |
510 | "") | |
511 | #define FUNC_NAME s_scm_vm_fetch_code | |
512 | { | |
513 | int i; | |
514 | SCM list; | |
515 | scm_byte_t *ip; | |
516 | struct scm_instruction *p; | |
a98cef7e | 517 | |
17e90c5e KN |
518 | SCM_VALIDATE_VM (1, vm); |
519 | VM_CHECK_RUNNING (vm); | |
a98cef7e | 520 | |
17e90c5e KN |
521 | ip = SCM_VM_DATA (vm)->ip; |
522 | p = SCM_INSTRUCTION (*ip); | |
a98cef7e | 523 | |
17e90c5e KN |
524 | list = SCM_LIST1 (scm_str2symbol (p->name)); |
525 | for (i = 1; i <= p->len; i++) | |
526 | list = scm_cons (SCM_MAKINUM (ip[i]), list); | |
527 | return scm_reverse_x (list, SCM_EOL); | |
528 | } | |
529 | #undef FUNC_NAME | |
530 | ||
531 | SCM_DEFINE (scm_vm_fetch_stack, "vm-fetch-stack", 1, 0, 0, | |
532 | (SCM vm), | |
533 | "") | |
534 | #define FUNC_NAME s_scm_vm_fetch_stack | |
a98cef7e | 535 | { |
3616e9e9 KN |
536 | SCM *sp; |
537 | SCM ls = SCM_EOL; | |
538 | struct scm_vm *vp; | |
a98cef7e KN |
539 | |
540 | SCM_VALIDATE_VM (1, vm); | |
17e90c5e | 541 | VM_CHECK_RUNNING (vm); |
a98cef7e | 542 | |
3616e9e9 | 543 | vp = SCM_VM_DATA (vm); |
af988bbf | 544 | for (sp = vp->stack_base; sp <= vp->sp; sp++) |
3616e9e9 KN |
545 | ls = scm_cons (*sp, ls); |
546 | return ls; | |
a98cef7e KN |
547 | } |
548 | #undef FUNC_NAME | |
549 | ||
550 | \f | |
551 | /* | |
17e90c5e | 552 | * Initialize |
a98cef7e KN |
553 | */ |
554 | ||
17e90c5e KN |
555 | void |
556 | scm_init_vm (void) | |
557 | { | |
ac99cb0c | 558 | scm_init_frames (); |
17e90c5e | 559 | scm_init_instructions (); |
8f5cfc81 | 560 | scm_init_objcodes (); |
ac99cb0c | 561 | scm_init_programs (); |
a98cef7e | 562 | |
17e90c5e KN |
563 | scm_tc16_vm_cont = scm_make_smob_type ("vm-cont", 0); |
564 | scm_set_smob_mark (scm_tc16_vm_cont, vm_cont_mark); | |
565 | scm_set_smob_free (scm_tc16_vm_cont, vm_cont_free); | |
a98cef7e | 566 | |
17e90c5e KN |
567 | scm_tc16_vm = scm_make_smob_type ("vm", 0); |
568 | scm_set_smob_mark (scm_tc16_vm, vm_mark); | |
569 | scm_set_smob_free (scm_tc16_vm, vm_free); | |
570 | scm_set_smob_apply (scm_tc16_vm, scm_vm_apply, 1, 0, 1); | |
a98cef7e | 571 | |
499a4c07 KN |
572 | the_vm = scm_permanent_object (make_vm ()); |
573 | ||
17e90c5e | 574 | #ifndef SCM_MAGIC_SNARFER |
a98cef7e | 575 | #include "vm.x" |
17e90c5e | 576 | #endif |
a98cef7e | 577 | } |
17e90c5e KN |
578 | |
579 | /* | |
580 | Local Variables: | |
581 | c-file-style: "gnu" | |
582 | End: | |
583 | */ |