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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 | ||
13c47753 AW |
42 | #if HAVE_CONFIG_H |
43 | # include <config.h> | |
44 | #endif | |
45 | ||
17e90c5e | 46 | #include <string.h> |
83495480 | 47 | #include "vm-bootstrap.h" |
ac99cb0c | 48 | #include "frames.h" |
17e90c5e | 49 | #include "instructions.h" |
8f5cfc81 | 50 | #include "objcodes.h" |
ac99cb0c | 51 | #include "programs.h" |
a98cef7e KN |
52 | #include "vm.h" |
53 | ||
a98cef7e KN |
54 | /* I sometimes use this for debugging. */ |
55 | #define vm_puts(OBJ) \ | |
56 | { \ | |
22bcbe8c AW |
57 | scm_display (OBJ, scm_current_error_port ()); \ |
58 | scm_newline (scm_current_error_port ()); \ | |
a98cef7e KN |
59 | } |
60 | ||
61 | \f | |
a98cef7e KN |
62 | /* |
63 | * VM Continuation | |
64 | */ | |
65 | ||
f9e8c09d | 66 | scm_t_bits scm_tc16_vm_cont; |
17e90c5e KN |
67 | |
68 | ||
69 | #define SCM_VM_CONT_P(OBJ) SCM_SMOB_PREDICATE (scm_tc16_vm_cont, OBJ) | |
3d5ee0cd | 70 | #define SCM_VM_CONT_VP(CONT) ((struct scm_vm *) SCM_CELL_WORD_1 (CONT)) |
a98cef7e KN |
71 | |
72 | static SCM | |
3d5ee0cd | 73 | capture_vm_cont (struct scm_vm *vp) |
a98cef7e | 74 | { |
d8eeb67c | 75 | struct scm_vm *p = scm_gc_malloc (sizeof (*p), "capture_vm_cont"); |
3d5ee0cd | 76 | p->stack_size = vp->stack_limit - vp->sp; |
d8eeb67c LC |
77 | p->stack_base = scm_gc_malloc (p->stack_size * sizeof (SCM), |
78 | "capture_vm_cont"); | |
17e90c5e | 79 | p->stack_limit = p->stack_base + p->stack_size - 2; |
3d5ee0cd KN |
80 | p->ip = vp->ip; |
81 | p->sp = (SCM *) (vp->stack_limit - vp->sp); | |
82 | p->fp = (SCM *) (vp->stack_limit - vp->fp); | |
83 | memcpy (p->stack_base, vp->sp + 1, vp->stack_size * sizeof (SCM)); | |
17e90c5e | 84 | SCM_RETURN_NEWSMOB (scm_tc16_vm_cont, p); |
a98cef7e KN |
85 | } |
86 | ||
87 | static void | |
3d5ee0cd | 88 | reinstate_vm_cont (struct scm_vm *vp, SCM cont) |
a98cef7e | 89 | { |
3d5ee0cd KN |
90 | struct scm_vm *p = SCM_VM_CONT_VP (cont); |
91 | if (vp->stack_size < p->stack_size) | |
a98cef7e | 92 | { |
17e90c5e | 93 | /* puts ("FIXME: Need to expand"); */ |
a98cef7e KN |
94 | abort (); |
95 | } | |
3d5ee0cd | 96 | vp->ip = p->ip; |
1976ad74 AW |
97 | vp->sp = vp->stack_limit - (intptr_t) p->sp; |
98 | vp->fp = vp->stack_limit - (intptr_t) p->fp; | |
3d5ee0cd | 99 | memcpy (vp->sp + 1, p->stack_base, p->stack_size * sizeof (SCM)); |
a98cef7e KN |
100 | } |
101 | ||
17d1b4bf AW |
102 | struct vm_unwind_data |
103 | { | |
104 | struct scm_vm *vp; | |
105 | SCM *sp; | |
106 | SCM *fp; | |
107 | SCM this_frame; | |
108 | }; | |
109 | ||
110 | static void | |
111 | vm_reset_stack (void *data) | |
112 | { | |
113 | struct vm_unwind_data *w = data; | |
114 | ||
115 | w->vp->sp = w->sp; | |
116 | w->vp->fp = w->fp; | |
117 | w->vp->this_frame = w->this_frame; | |
118 | } | |
119 | ||
a98cef7e | 120 | static SCM |
17e90c5e | 121 | vm_cont_mark (SCM obj) |
a98cef7e KN |
122 | { |
123 | SCM *p; | |
3d5ee0cd KN |
124 | struct scm_vm *vp = SCM_VM_CONT_VP (obj); |
125 | for (p = vp->stack_base; p <= vp->stack_limit; p++) | |
a98cef7e KN |
126 | if (SCM_NIMP (*p)) |
127 | scm_gc_mark (*p); | |
128 | return SCM_BOOL_F; | |
129 | } | |
130 | ||
131 | static scm_sizet | |
17e90c5e | 132 | vm_cont_free (SCM obj) |
a98cef7e | 133 | { |
3d5ee0cd | 134 | struct scm_vm *p = SCM_VM_CONT_VP (obj); |
d8eeb67c LC |
135 | |
136 | scm_gc_free (p->stack_base, p->stack_size * sizeof (SCM), "stack-base"); | |
137 | scm_gc_free (p, sizeof (struct scm_vm), "vm"); | |
138 | ||
139 | return 0; | |
a98cef7e KN |
140 | } |
141 | ||
17e90c5e KN |
142 | \f |
143 | /* | |
144 | * VM Internal functions | |
145 | */ | |
146 | ||
90b0be20 AW |
147 | static SCM sym_vm_run; |
148 | static SCM sym_vm_error; | |
149 | static SCM sym_debug; | |
17e90c5e KN |
150 | |
151 | static scm_byte_t * | |
152 | vm_fetch_length (scm_byte_t *ip, size_t *lenp) | |
a98cef7e | 153 | { |
4bfb26f5 | 154 | /* NOTE: format defined in system/vm/conv.scm */ |
17e90c5e KN |
155 | *lenp = *ip++; |
156 | if (*lenp < 254) | |
157 | return ip; | |
158 | else if (*lenp == 254) | |
46cd9a34 KN |
159 | { |
160 | int b1 = *ip++; | |
161 | int b2 = *ip++; | |
162 | *lenp = (b1 << 8) + b2; | |
163 | } | |
17e90c5e | 164 | else |
46cd9a34 KN |
165 | { |
166 | int b1 = *ip++; | |
167 | int b2 = *ip++; | |
168 | int b3 = *ip++; | |
169 | int b4 = *ip++; | |
170 | *lenp = (b1 << 24) + (b2 << 16) + (b3 << 8) + b4; | |
171 | } | |
17e90c5e | 172 | return ip; |
a98cef7e KN |
173 | } |
174 | ||
af988bbf | 175 | static SCM |
a6df585a | 176 | vm_heapify_frames_1 (struct scm_vm *vp, SCM *fp, SCM *sp, SCM **destp) |
af988bbf | 177 | { |
a6df585a | 178 | SCM frame; |
af988bbf | 179 | SCM *dl = SCM_FRAME_DYNAMIC_LINK (fp); |
fcd4901b | 180 | #if 0 |
a6df585a | 181 | SCM *src = SCM_FRAME_UPPER_ADDRESS (fp); |
fcd4901b | 182 | #endif |
a6df585a | 183 | SCM *dest = SCM_FRAME_LOWER_ADDRESS (fp); |
af988bbf KN |
184 | |
185 | if (!dl) | |
186 | { | |
187 | /* The top frame */ | |
af988bbf KN |
188 | frame = scm_c_make_heap_frame (fp); |
189 | fp = SCM_HEAP_FRAME_POINTER (frame); | |
190 | SCM_FRAME_HEAP_LINK (fp) = SCM_BOOL_T; | |
191 | } | |
192 | else | |
193 | { | |
a6df585a | 194 | /* Child frames */ |
af988bbf KN |
195 | SCM link = SCM_FRAME_HEAP_LINK (dl); |
196 | if (!SCM_FALSEP (link)) | |
a6df585a | 197 | link = SCM_FRAME_LOWER_ADDRESS (dl)[-1]; /* self link */ |
af988bbf | 198 | else |
a6df585a | 199 | link = vm_heapify_frames_1 (vp, dl, dest - 1, &dest); |
af988bbf KN |
200 | frame = scm_c_make_heap_frame (fp); |
201 | fp = SCM_HEAP_FRAME_POINTER (frame); | |
202 | SCM_FRAME_HEAP_LINK (fp) = link; | |
b6368dbb | 203 | SCM_FRAME_SET_DYNAMIC_LINK (fp, SCM_HEAP_FRAME_POINTER (link)); |
af988bbf KN |
204 | } |
205 | ||
17d1b4bf AW |
206 | /* Apparently the intention here is to be able to have a frame on the heap, |
207 | but data on the stack, so that you can push as much as you want on the | |
208 | stack; but I think that it's currently causing borkage with nonlocal exits | |
209 | and the unwind handler, which reinstates the sp and fp, but it's no longer | |
210 | pointing at a valid stack frame. So disable for now, we'll get back to | |
211 | this later. */ | |
212 | #if 0 | |
af988bbf | 213 | /* Move stack data */ |
a6df585a KN |
214 | for (; src <= sp; src++, dest++) |
215 | *dest = *src; | |
216 | *destp = dest; | |
17d1b4bf | 217 | #endif |
af988bbf KN |
218 | |
219 | return frame; | |
220 | } | |
221 | ||
222 | static SCM | |
223 | vm_heapify_frames (SCM vm) | |
224 | { | |
225 | struct scm_vm *vp = SCM_VM_DATA (vm); | |
226 | if (SCM_FALSEP (SCM_FRAME_HEAP_LINK (vp->fp))) | |
227 | { | |
a6df585a KN |
228 | SCM *dest; |
229 | vp->this_frame = vm_heapify_frames_1 (vp, vp->fp, vp->sp, &dest); | |
af988bbf | 230 | vp->fp = SCM_HEAP_FRAME_POINTER (vp->this_frame); |
a6df585a | 231 | vp->sp = dest - 1; |
af988bbf KN |
232 | } |
233 | return vp->this_frame; | |
234 | } | |
235 | ||
a98cef7e KN |
236 | \f |
237 | /* | |
238 | * VM | |
239 | */ | |
240 | ||
c0a25ecc | 241 | #define VM_DEFAULT_STACK_SIZE (16 * 1024) |
17e90c5e KN |
242 | |
243 | #define VM_REGULAR_ENGINE 0 | |
244 | #define VM_DEBUG_ENGINE 1 | |
245 | ||
246 | #if 0 | |
247 | #define VM_NAME vm_regular_engine | |
248 | #define VM_ENGINE VM_REGULAR_ENGINE | |
83495480 | 249 | #include "vm-engine.c" |
17e90c5e KN |
250 | #undef VM_NAME |
251 | #undef VM_ENGINE | |
252 | #endif | |
253 | ||
254 | #define VM_NAME vm_debug_engine | |
255 | #define VM_ENGINE VM_DEBUG_ENGINE | |
83495480 | 256 | #include "vm-engine.c" |
17e90c5e KN |
257 | #undef VM_NAME |
258 | #undef VM_ENGINE | |
259 | ||
f9e8c09d | 260 | scm_t_bits scm_tc16_vm; |
a98cef7e | 261 | |
7bbed518 | 262 | SCM scm_the_vm_fluid; |
499a4c07 | 263 | |
a98cef7e | 264 | static SCM |
17e90c5e KN |
265 | make_vm (void) |
266 | #define FUNC_NAME "make_vm" | |
a98cef7e | 267 | { |
17e90c5e | 268 | int i; |
d8eeb67c LC |
269 | struct scm_vm *vp = scm_gc_malloc (sizeof (struct scm_vm), "vm"); |
270 | ||
3d5ee0cd | 271 | vp->stack_size = VM_DEFAULT_STACK_SIZE; |
d8eeb67c LC |
272 | vp->stack_base = scm_gc_malloc (vp->stack_size * sizeof (SCM), |
273 | "stack-base"); | |
3616e9e9 KN |
274 | vp->stack_limit = vp->stack_base + vp->stack_size - 3; |
275 | vp->ip = NULL; | |
276 | vp->sp = vp->stack_base - 1; | |
277 | vp->fp = NULL; | |
3d5ee0cd KN |
278 | vp->time = 0; |
279 | vp->clock = 0; | |
280 | vp->options = SCM_EOL; | |
af988bbf | 281 | vp->this_frame = SCM_BOOL_F; |
ac99cb0c | 282 | vp->last_frame = SCM_BOOL_F; |
d0168f3d | 283 | vp->last_ip = NULL; |
17e90c5e | 284 | for (i = 0; i < SCM_VM_NUM_HOOKS; i++) |
3d5ee0cd KN |
285 | vp->hooks[i] = SCM_BOOL_F; |
286 | SCM_RETURN_NEWSMOB (scm_tc16_vm, vp); | |
a98cef7e | 287 | } |
17e90c5e | 288 | #undef FUNC_NAME |
a98cef7e KN |
289 | |
290 | static SCM | |
17e90c5e | 291 | vm_mark (SCM obj) |
a98cef7e | 292 | { |
17e90c5e | 293 | int i; |
3d5ee0cd | 294 | struct scm_vm *vp = SCM_VM_DATA (obj); |
17e90c5e | 295 | |
af988bbf KN |
296 | /* mark the stack conservatively */ |
297 | scm_mark_locations ((SCM_STACKITEM *) vp->stack_base, | |
298 | sizeof (SCM) * (vp->sp - vp->stack_base + 1)); | |
a98cef7e | 299 | |
af988bbf | 300 | /* mark other objects */ |
17e90c5e | 301 | for (i = 0; i < SCM_VM_NUM_HOOKS; i++) |
3d5ee0cd | 302 | scm_gc_mark (vp->hooks[i]); |
af988bbf | 303 | scm_gc_mark (vp->this_frame); |
ac99cb0c | 304 | scm_gc_mark (vp->last_frame); |
3d5ee0cd | 305 | return vp->options; |
a98cef7e KN |
306 | } |
307 | ||
17e90c5e KN |
308 | static scm_sizet |
309 | vm_free (SCM obj) | |
310 | { | |
3d5ee0cd | 311 | struct scm_vm *vp = SCM_VM_DATA (obj); |
d8eeb67c LC |
312 | |
313 | scm_gc_free (vp->stack_base, vp->stack_size * sizeof (SCM), | |
314 | "stack-base"); | |
315 | scm_gc_free (vp, sizeof (struct scm_vm), "vm"); | |
316 | ||
317 | return 0; | |
17e90c5e KN |
318 | } |
319 | ||
17e90c5e KN |
320 | SCM |
321 | scm_vm_apply (SCM vm, SCM program, SCM args) | |
322 | #define FUNC_NAME "scm_vm_apply" | |
a98cef7e | 323 | { |
17e90c5e | 324 | SCM_VALIDATE_PROGRAM (1, program); |
41f248a8 | 325 | return vm_run (vm, program, args); |
a98cef7e | 326 | } |
17e90c5e | 327 | #undef FUNC_NAME |
a98cef7e KN |
328 | |
329 | /* Scheme interface */ | |
330 | ||
331 | SCM_DEFINE (scm_vm_version, "vm-version", 0, 0, 0, | |
17e90c5e KN |
332 | (void), |
333 | "") | |
a98cef7e KN |
334 | #define FUNC_NAME s_scm_vm_version |
335 | { | |
d3518113 | 336 | return scm_from_locale_string (PACKAGE_VERSION); |
a98cef7e KN |
337 | } |
338 | #undef FUNC_NAME | |
339 | ||
499a4c07 | 340 | SCM_DEFINE (scm_the_vm, "the-vm", 0, 0, 0, |
fcd4901b | 341 | (void), |
499a4c07 KN |
342 | "") |
343 | #define FUNC_NAME s_scm_the_vm | |
344 | { | |
7bbed518 | 345 | return scm_fluid_ref (scm_the_vm_fluid); |
499a4c07 KN |
346 | } |
347 | #undef FUNC_NAME | |
348 | ||
349 | ||
a98cef7e KN |
350 | SCM_DEFINE (scm_vm_p, "vm?", 1, 0, 0, |
351 | (SCM obj), | |
17e90c5e | 352 | "") |
a98cef7e KN |
353 | #define FUNC_NAME s_scm_vm_p |
354 | { | |
355 | return SCM_BOOL (SCM_VM_P (obj)); | |
356 | } | |
357 | #undef FUNC_NAME | |
358 | ||
359 | SCM_DEFINE (scm_make_vm, "make-vm", 0, 0, 0, | |
17e90c5e KN |
360 | (void), |
361 | "") | |
362 | #define FUNC_NAME s_scm_make_vm, | |
a98cef7e | 363 | { |
17e90c5e | 364 | return make_vm (); |
a98cef7e KN |
365 | } |
366 | #undef FUNC_NAME | |
367 | ||
17e90c5e | 368 | SCM_DEFINE (scm_vm_ip, "vm:ip", 1, 0, 0, |
a98cef7e | 369 | (SCM vm), |
17e90c5e KN |
370 | "") |
371 | #define FUNC_NAME s_scm_vm_ip | |
a98cef7e KN |
372 | { |
373 | SCM_VALIDATE_VM (1, vm); | |
f41cb00c | 374 | return scm_from_ulong ((unsigned long) SCM_VM_DATA (vm)->ip); |
a98cef7e KN |
375 | } |
376 | #undef FUNC_NAME | |
377 | ||
378 | SCM_DEFINE (scm_vm_sp, "vm:sp", 1, 0, 0, | |
379 | (SCM vm), | |
17e90c5e | 380 | "") |
a98cef7e KN |
381 | #define FUNC_NAME s_scm_vm_sp |
382 | { | |
383 | SCM_VALIDATE_VM (1, vm); | |
f41cb00c | 384 | return scm_from_ulong ((unsigned long) SCM_VM_DATA (vm)->sp); |
a98cef7e KN |
385 | } |
386 | #undef FUNC_NAME | |
387 | ||
388 | SCM_DEFINE (scm_vm_fp, "vm:fp", 1, 0, 0, | |
389 | (SCM vm), | |
17e90c5e | 390 | "") |
a98cef7e KN |
391 | #define FUNC_NAME s_scm_vm_fp |
392 | { | |
393 | SCM_VALIDATE_VM (1, vm); | |
f41cb00c | 394 | return scm_from_ulong ((unsigned long) SCM_VM_DATA (vm)->fp); |
a98cef7e KN |
395 | } |
396 | #undef FUNC_NAME | |
397 | ||
17e90c5e KN |
398 | #define VM_DEFINE_HOOK(n) \ |
399 | { \ | |
3d5ee0cd | 400 | struct scm_vm *vp; \ |
17e90c5e | 401 | SCM_VALIDATE_VM (1, vm); \ |
3d5ee0cd KN |
402 | vp = SCM_VM_DATA (vm); \ |
403 | if (SCM_FALSEP (vp->hooks[n])) \ | |
238e7a11 | 404 | vp->hooks[n] = scm_make_hook (SCM_I_MAKINUM (1)); \ |
3d5ee0cd | 405 | return vp->hooks[n]; \ |
17e90c5e KN |
406 | } |
407 | ||
408 | SCM_DEFINE (scm_vm_boot_hook, "vm-boot-hook", 1, 0, 0, | |
a98cef7e | 409 | (SCM vm), |
17e90c5e KN |
410 | "") |
411 | #define FUNC_NAME s_scm_vm_boot_hook | |
a98cef7e | 412 | { |
17e90c5e | 413 | VM_DEFINE_HOOK (SCM_VM_BOOT_HOOK); |
a98cef7e KN |
414 | } |
415 | #undef FUNC_NAME | |
416 | ||
17e90c5e KN |
417 | SCM_DEFINE (scm_vm_halt_hook, "vm-halt-hook", 1, 0, 0, |
418 | (SCM vm), | |
419 | "") | |
420 | #define FUNC_NAME s_scm_vm_halt_hook | |
a98cef7e | 421 | { |
17e90c5e | 422 | VM_DEFINE_HOOK (SCM_VM_HALT_HOOK); |
a98cef7e KN |
423 | } |
424 | #undef FUNC_NAME | |
425 | ||
17e90c5e | 426 | SCM_DEFINE (scm_vm_next_hook, "vm-next-hook", 1, 0, 0, |
a98cef7e | 427 | (SCM vm), |
17e90c5e KN |
428 | "") |
429 | #define FUNC_NAME s_scm_vm_next_hook | |
a98cef7e | 430 | { |
17e90c5e | 431 | VM_DEFINE_HOOK (SCM_VM_NEXT_HOOK); |
a98cef7e KN |
432 | } |
433 | #undef FUNC_NAME | |
434 | ||
7a0d0cee KN |
435 | SCM_DEFINE (scm_vm_break_hook, "vm-break-hook", 1, 0, 0, |
436 | (SCM vm), | |
437 | "") | |
438 | #define FUNC_NAME s_scm_vm_break_hook | |
439 | { | |
440 | VM_DEFINE_HOOK (SCM_VM_BREAK_HOOK); | |
441 | } | |
442 | #undef FUNC_NAME | |
443 | ||
17e90c5e KN |
444 | SCM_DEFINE (scm_vm_enter_hook, "vm-enter-hook", 1, 0, 0, |
445 | (SCM vm), | |
446 | "") | |
447 | #define FUNC_NAME s_scm_vm_enter_hook | |
a98cef7e | 448 | { |
17e90c5e | 449 | VM_DEFINE_HOOK (SCM_VM_ENTER_HOOK); |
a98cef7e KN |
450 | } |
451 | #undef FUNC_NAME | |
452 | ||
17e90c5e KN |
453 | SCM_DEFINE (scm_vm_apply_hook, "vm-apply-hook", 1, 0, 0, |
454 | (SCM vm), | |
455 | "") | |
456 | #define FUNC_NAME s_scm_vm_apply_hook | |
a98cef7e | 457 | { |
17e90c5e | 458 | VM_DEFINE_HOOK (SCM_VM_APPLY_HOOK); |
a98cef7e KN |
459 | } |
460 | #undef FUNC_NAME | |
461 | ||
17e90c5e | 462 | SCM_DEFINE (scm_vm_exit_hook, "vm-exit-hook", 1, 0, 0, |
a98cef7e | 463 | (SCM vm), |
17e90c5e KN |
464 | "") |
465 | #define FUNC_NAME s_scm_vm_exit_hook | |
a98cef7e | 466 | { |
17e90c5e | 467 | VM_DEFINE_HOOK (SCM_VM_EXIT_HOOK); |
a98cef7e KN |
468 | } |
469 | #undef FUNC_NAME | |
470 | ||
17e90c5e | 471 | SCM_DEFINE (scm_vm_return_hook, "vm-return-hook", 1, 0, 0, |
a98cef7e | 472 | (SCM vm), |
17e90c5e KN |
473 | "") |
474 | #define FUNC_NAME s_scm_vm_return_hook | |
a98cef7e | 475 | { |
17e90c5e | 476 | VM_DEFINE_HOOK (SCM_VM_RETURN_HOOK); |
a98cef7e KN |
477 | } |
478 | #undef FUNC_NAME | |
479 | ||
17e90c5e KN |
480 | SCM_DEFINE (scm_vm_option, "vm-option", 2, 0, 0, |
481 | (SCM vm, SCM key), | |
482 | "") | |
483 | #define FUNC_NAME s_scm_vm_option | |
a98cef7e KN |
484 | { |
485 | SCM_VALIDATE_VM (1, vm); | |
17e90c5e | 486 | return scm_assq_ref (SCM_VM_DATA (vm)->options, key); |
a98cef7e KN |
487 | } |
488 | #undef FUNC_NAME | |
489 | ||
17e90c5e KN |
490 | SCM_DEFINE (scm_set_vm_option_x, "set-vm-option!", 3, 0, 0, |
491 | (SCM vm, SCM key, SCM val), | |
492 | "") | |
493 | #define FUNC_NAME s_scm_set_vm_option_x | |
a98cef7e KN |
494 | { |
495 | SCM_VALIDATE_VM (1, vm); | |
17e90c5e KN |
496 | SCM_VM_DATA (vm)->options |
497 | = scm_assq_set_x (SCM_VM_DATA (vm)->options, key, val); | |
498 | return SCM_UNSPECIFIED; | |
a98cef7e KN |
499 | } |
500 | #undef FUNC_NAME | |
501 | ||
17e90c5e | 502 | SCM_DEFINE (scm_vm_stats, "vm-stats", 1, 0, 0, |
a98cef7e | 503 | (SCM vm), |
17e90c5e KN |
504 | "") |
505 | #define FUNC_NAME s_scm_vm_stats | |
a98cef7e | 506 | { |
17e90c5e KN |
507 | SCM stats; |
508 | ||
a98cef7e | 509 | SCM_VALIDATE_VM (1, vm); |
17e90c5e | 510 | |
2d80426a LC |
511 | stats = scm_make_vector (SCM_I_MAKINUM (2), SCM_UNSPECIFIED); |
512 | scm_vector_set_x (stats, SCM_I_MAKINUM (0), | |
f9e8c09d | 513 | scm_from_ulong (SCM_VM_DATA (vm)->time)); |
2d80426a | 514 | scm_vector_set_x (stats, SCM_I_MAKINUM (1), |
f9e8c09d | 515 | scm_from_ulong (SCM_VM_DATA (vm)->clock)); |
17e90c5e KN |
516 | |
517 | return stats; | |
a98cef7e KN |
518 | } |
519 | #undef FUNC_NAME | |
520 | ||
17e90c5e KN |
521 | #define VM_CHECK_RUNNING(vm) \ |
522 | if (!SCM_VM_DATA (vm)->ip) \ | |
523 | SCM_MISC_ERROR ("Not running", SCM_LIST1 (vm)) | |
524 | ||
af988bbf | 525 | SCM_DEFINE (scm_vm_this_frame, "vm-this-frame", 1, 0, 0, |
a98cef7e | 526 | (SCM vm), |
17e90c5e | 527 | "") |
af988bbf | 528 | #define FUNC_NAME s_scm_vm_this_frame |
a98cef7e KN |
529 | { |
530 | SCM_VALIDATE_VM (1, vm); | |
af988bbf | 531 | return SCM_VM_DATA (vm)->this_frame; |
ac99cb0c KN |
532 | } |
533 | #undef FUNC_NAME | |
534 | ||
535 | SCM_DEFINE (scm_vm_last_frame, "vm-last-frame", 1, 0, 0, | |
536 | (SCM vm), | |
537 | "") | |
538 | #define FUNC_NAME s_scm_vm_last_frame | |
539 | { | |
540 | SCM_VALIDATE_VM (1, vm); | |
541 | return SCM_VM_DATA (vm)->last_frame; | |
a98cef7e KN |
542 | } |
543 | #undef FUNC_NAME | |
544 | ||
d0168f3d AW |
545 | SCM_DEFINE (scm_vm_last_ip, "vm:last-ip", 1, 0, 0, |
546 | (SCM vm), | |
547 | "") | |
548 | #define FUNC_NAME s_scm_vm_last_ip | |
549 | { | |
550 | SCM_VALIDATE_VM (1, vm); | |
551 | return scm_from_ulong ((unsigned long) SCM_VM_DATA (vm)->last_ip); | |
552 | } | |
553 | #undef FUNC_NAME | |
554 | ||
68a2e18a AW |
555 | SCM_DEFINE (scm_vm_save_stack, "vm-save-stack", 1, 0, 0, |
556 | (SCM vm), | |
557 | "") | |
558 | #define FUNC_NAME s_scm_vm_save_stack | |
559 | { | |
17d1b4bf AW |
560 | struct scm_vm *vp; |
561 | SCM *dest; | |
68a2e18a | 562 | SCM_VALIDATE_VM (1, vm); |
17d1b4bf | 563 | vp = SCM_VM_DATA (vm); |
7e4760e4 AW |
564 | |
565 | if (vp->fp) | |
566 | { | |
567 | vp->last_frame = vm_heapify_frames_1 (vp, vp->fp, vp->sp, &dest); | |
568 | vp->last_ip = vp->ip; | |
569 | } | |
570 | else | |
571 | { | |
572 | vp->last_frame = SCM_BOOL_F; | |
573 | } | |
574 | ||
575 | ||
17d1b4bf | 576 | return vp->last_frame; |
68a2e18a AW |
577 | } |
578 | #undef FUNC_NAME | |
579 | ||
17e90c5e KN |
580 | SCM_DEFINE (scm_vm_fetch_code, "vm-fetch-code", 1, 0, 0, |
581 | (SCM vm), | |
582 | "") | |
583 | #define FUNC_NAME s_scm_vm_fetch_code | |
584 | { | |
585 | int i; | |
586 | SCM list; | |
587 | scm_byte_t *ip; | |
588 | struct scm_instruction *p; | |
a98cef7e | 589 | |
17e90c5e KN |
590 | SCM_VALIDATE_VM (1, vm); |
591 | VM_CHECK_RUNNING (vm); | |
a98cef7e | 592 | |
17e90c5e KN |
593 | ip = SCM_VM_DATA (vm)->ip; |
594 | p = SCM_INSTRUCTION (*ip); | |
a98cef7e | 595 | |
17e90c5e KN |
596 | list = SCM_LIST1 (scm_str2symbol (p->name)); |
597 | for (i = 1; i <= p->len; i++) | |
2d80426a | 598 | list = scm_cons (SCM_I_MAKINUM (ip[i]), list); |
17e90c5e KN |
599 | return scm_reverse_x (list, SCM_EOL); |
600 | } | |
601 | #undef FUNC_NAME | |
602 | ||
603 | SCM_DEFINE (scm_vm_fetch_stack, "vm-fetch-stack", 1, 0, 0, | |
604 | (SCM vm), | |
605 | "") | |
606 | #define FUNC_NAME s_scm_vm_fetch_stack | |
a98cef7e | 607 | { |
3616e9e9 KN |
608 | SCM *sp; |
609 | SCM ls = SCM_EOL; | |
610 | struct scm_vm *vp; | |
a98cef7e KN |
611 | |
612 | SCM_VALIDATE_VM (1, vm); | |
17e90c5e | 613 | VM_CHECK_RUNNING (vm); |
a98cef7e | 614 | |
3616e9e9 | 615 | vp = SCM_VM_DATA (vm); |
af988bbf | 616 | for (sp = vp->stack_base; sp <= vp->sp; sp++) |
3616e9e9 KN |
617 | ls = scm_cons (*sp, ls); |
618 | return ls; | |
a98cef7e KN |
619 | } |
620 | #undef FUNC_NAME | |
621 | ||
622 | \f | |
623 | /* | |
17e90c5e | 624 | * Initialize |
a98cef7e KN |
625 | */ |
626 | ||
07e56b27 AW |
627 | SCM scm_load_compiled_with_vm (SCM file) |
628 | { | |
629 | SCM program = scm_objcode_to_program (scm_load_objcode (file)); | |
630 | ||
7bbed518 | 631 | return vm_run (scm_the_vm (), program, SCM_EOL); |
07e56b27 AW |
632 | } |
633 | ||
17e90c5e | 634 | void |
07e56b27 | 635 | scm_bootstrap_vm (void) |
17e90c5e | 636 | { |
07e56b27 AW |
637 | static int strappage = 0; |
638 | ||
639 | if (strappage) | |
640 | return; | |
641 | ||
642 | scm_bootstrap_frames (); | |
643 | scm_bootstrap_instructions (); | |
644 | scm_bootstrap_objcodes (); | |
645 | scm_bootstrap_programs (); | |
a98cef7e | 646 | |
17e90c5e KN |
647 | scm_tc16_vm_cont = scm_make_smob_type ("vm-cont", 0); |
648 | scm_set_smob_mark (scm_tc16_vm_cont, vm_cont_mark); | |
649 | scm_set_smob_free (scm_tc16_vm_cont, vm_cont_free); | |
a98cef7e | 650 | |
17e90c5e KN |
651 | scm_tc16_vm = scm_make_smob_type ("vm", 0); |
652 | scm_set_smob_mark (scm_tc16_vm, vm_mark); | |
653 | scm_set_smob_free (scm_tc16_vm, vm_free); | |
654 | scm_set_smob_apply (scm_tc16_vm, scm_vm_apply, 1, 0, 1); | |
a98cef7e | 655 | |
7bbed518 AW |
656 | scm_the_vm_fluid = scm_permanent_object (scm_make_fluid ()); |
657 | scm_fluid_set_x (scm_the_vm_fluid, make_vm ()); | |
658 | scm_c_define ("*the-vm*", scm_the_vm_fluid); | |
499a4c07 | 659 | |
83495480 AW |
660 | scm_c_define ("load-compiled", |
661 | scm_c_make_gsubr ("load-compiled/vm", 1, 0, 0, | |
662 | scm_load_compiled_with_vm)); | |
07e56b27 | 663 | |
90b0be20 AW |
664 | sym_vm_run = scm_permanent_object (scm_from_locale_symbol ("vm-run")); |
665 | sym_vm_error = scm_permanent_object (scm_from_locale_symbol ("vm-error")); | |
666 | sym_debug = scm_permanent_object (scm_from_locale_symbol ("debug")); | |
667 | ||
07e56b27 AW |
668 | strappage = 1; |
669 | } | |
670 | ||
671 | void | |
672 | scm_init_vm (void) | |
673 | { | |
674 | scm_bootstrap_vm (); | |
675 | ||
17e90c5e | 676 | #ifndef SCM_MAGIC_SNARFER |
a98cef7e | 677 | #include "vm.x" |
17e90c5e | 678 | #endif |
a98cef7e | 679 | } |
17e90c5e KN |
680 | |
681 | /* | |
682 | Local Variables: | |
683 | c-file-style: "gnu" | |
684 | End: | |
685 | */ |