bytecode.c 29 KB
Newer Older
Jim Blandy's avatar
Jim Blandy committed
1
/* Execution of byte code produced by bytecomp.el.
Jim Blandy's avatar
Jim Blandy committed
2
   Copyright (C) 1985, 1986, 1987, 1988, 1993 Free Software Foundation, Inc.
Jim Blandy's avatar
Jim Blandy committed
3 4 5 6 7

This file is part of GNU Emacs.

GNU Emacs is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
8
the Free Software Foundation; either version 2, or (at your option)
Jim Blandy's avatar
Jim Blandy committed
9 10 11 12 13 14 15 16 17
any later version.

GNU Emacs is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with GNU Emacs; see the file COPYING.  If not, write to
18 19
the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
Jim Blandy's avatar
Jim Blandy committed
20

21
hacked on by jwz@lucid.com 17-jun-91
Jim Blandy's avatar
Jim Blandy committed
22 23 24 25
  o  added a compile-time switch to turn on simple sanity checking;
  o  put back the obsolete byte-codes for error-detection;
  o  added a new instruction, unbind_all, which I will use for 
     tail-recursion elimination;
26
  o  made temp_output_buffer_show be called with the right number
Jim Blandy's avatar
Jim Blandy committed
27 28 29 30 31
     of args;
  o  made the new bytecodes be called with args in the right order;
  o  added metering support.

by Hallvard:
32
  o  added relative jump instructions;
Jim Blandy's avatar
Jim Blandy committed
33 34 35
  o  all conditionals now only do QUIT if they jump.
 */

36
#include <config.h>
Jim Blandy's avatar
Jim Blandy committed
37 38
#include "lisp.h"
#include "buffer.h"
Kenichi Handa's avatar
Kenichi Handa committed
39
#include "charset.h"
Jim Blandy's avatar
Jim Blandy committed
40 41
#include "syntax.h"

42 43 44 45 46
/*
 * define BYTE_CODE_SAFE to enable some minor sanity checking (useful for 
 * debugging the byte compiler...)
 *
 * define BYTE_CODE_METER to enable generation of a byte-op usage histogram. 
Jim Blandy's avatar
Jim Blandy committed
47
 */
48 49
/* #define BYTE_CODE_SAFE */
/* #define BYTE_CODE_METER */
Jim Blandy's avatar
Jim Blandy committed
50 51 52 53


#ifdef BYTE_CODE_METER

54
Lisp_Object Vbyte_code_meter, Qbyte_code_meter;
Jim Blandy's avatar
Jim Blandy committed
55 56
int byte_metering_on;

57
#define METER_2(code1, code2) \
Jim Blandy's avatar
Jim Blandy committed
58 59 60
  XFASTINT (XVECTOR (XVECTOR (Vbyte_code_meter)->contents[(code1)]) \
	    ->contents[(code2)])

61 62 63 64 65 66 67 68 69 70 71 72 73
#define METER_1(code) METER_2 (0, (code))

#define METER_CODE(last_code, this_code)			\
{								\
  if (byte_metering_on)						\
    {								\
      if (METER_1 (this_code) != ((1<<VALBITS)-1))		\
        METER_1 (this_code)++;					\
      if (last_code						\
	  && METER_2 (last_code, this_code) != ((1<<VALBITS)-1))\
        METER_2 (last_code, this_code)++;			\
    }								\
}
Jim Blandy's avatar
Jim Blandy committed
74

75
#else /* no BYTE_CODE_METER */
Jim Blandy's avatar
Jim Blandy committed
76

77
#define METER_CODE(last_code, this_code)
Richard M. Stallman's avatar
Richard M. Stallman committed
78

79
#endif /* no BYTE_CODE_METER */
Jim Blandy's avatar
Jim Blandy committed
80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110


Lisp_Object Qbytecode;

/*  Byte codes: */

#define Bvarref 010
#define Bvarset 020
#define Bvarbind 030
#define Bcall 040
#define Bunbind 050

#define Bnth 070
#define Bsymbolp 071
#define Bconsp 072
#define Bstringp 073
#define Blistp 074
#define Beq 075
#define Bmemq 076
#define Bnot 077
#define Bcar 0100
#define Bcdr 0101
#define Bcons 0102
#define Blist1 0103
#define Blist2 0104
#define Blist3 0105
#define Blist4 0106
#define Blength 0107
#define Baref 0110
#define Baset 0111
#define Bsymbol_value 0112
111
#define Bsymbol_function 0113
Jim Blandy's avatar
Jim Blandy committed
112
#define Bset 0114
113
#define Bfset 0115
Jim Blandy's avatar
Jim Blandy committed
114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133
#define Bget 0116
#define Bsubstring 0117
#define Bconcat2 0120
#define Bconcat3 0121
#define Bconcat4 0122
#define Bsub1 0123
#define Badd1 0124
#define Beqlsign 0125
#define Bgtr 0126
#define Blss 0127
#define Bleq 0130
#define Bgeq 0131
#define Bdiff 0132
#define Bnegate 0133
#define Bplus 0134
#define Bmax 0135
#define Bmin 0136
#define Bmult 0137

#define Bpoint 0140
134 135
/* Was Bmark in v17.  */
#define Bsave_current_buffer 0141
Jim Blandy's avatar
Jim Blandy committed
136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151
#define Bgoto_char 0142
#define Binsert 0143
#define Bpoint_max 0144
#define Bpoint_min 0145
#define Bchar_after 0146
#define Bfollowing_char 0147
#define Bpreceding_char 0150
#define Bcurrent_column 0151
#define Bindent_to 0152
#define Bscan_buffer 0153 /* No longer generated as of v18 */
#define Beolp 0154
#define Beobp 0155
#define Bbolp 0156
#define Bbobp 0157
#define Bcurrent_buffer 0160
#define Bset_buffer 0161
Richard M. Stallman's avatar
Richard M. Stallman committed
152
#define Bsave_current_buffer_1 0162 /* Replacing Bsave_current_buffer.  */
153
#define Bread_char 0162 /* No longer generated as of v19 */
Jim Blandy's avatar
Jim Blandy committed
154 155 156 157 158 159 160 161 162 163 164 165 166
#define Bset_mark 0163 /* this loser is no longer generated as of v18 */
#define Binteractive_p 0164 /* Needed since interactive-p takes unevalled args */

#define Bforward_char 0165
#define Bforward_word 0166
#define Bskip_chars_forward 0167
#define Bskip_chars_backward 0170
#define Bforward_line 0171
#define Bchar_syntax 0172
#define Bbuffer_substring 0173
#define Bdelete_region 0174
#define Bnarrow_to_region 0175
#define Bwiden 0176
167
#define Bend_of_line 0177
Jim Blandy's avatar
Jim Blandy committed
168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190

#define Bconstant2 0201
#define Bgoto 0202
#define Bgotoifnil 0203
#define Bgotoifnonnil 0204
#define Bgotoifnilelsepop 0205
#define Bgotoifnonnilelsepop 0206
#define Breturn 0207
#define Bdiscard 0210
#define Bdup 0211

#define Bsave_excursion 0212
#define Bsave_window_excursion 0213
#define Bsave_restriction 0214
#define Bcatch 0215

#define Bunwind_protect 0216
#define Bcondition_case 0217
#define Btemp_output_buffer_setup 0220
#define Btemp_output_buffer_show 0221

#define Bunbind_all 0222

191 192 193 194 195 196
#define Bset_marker 0223
#define Bmatch_beginning 0224
#define Bmatch_end 0225
#define Bupcase 0226
#define Bdowncase 0227

Jim Blandy's avatar
Jim Blandy committed
197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214
#define Bstringeqlsign 0230
#define Bstringlss 0231
#define Bequal 0232
#define Bnthcdr 0233
#define Belt 0234
#define Bmember 0235
#define Bassq 0236
#define Bnreverse 0237
#define Bsetcar 0240
#define Bsetcdr 0241
#define Bcar_safe 0242
#define Bcdr_safe 0243
#define Bnconc 0244
#define Bquo 0245
#define Brem 0246
#define Bnumberp 0247
#define Bintegerp 0250

215 216 217 218 219 220 221 222 223 224
#define BRgoto 0252
#define BRgotoifnil 0253
#define BRgotoifnonnil 0254
#define BRgotoifnilelsepop 0255
#define BRgotoifnonnilelsepop 0256

#define BlistN 0257
#define BconcatN 0260
#define BinsertN 0261

Jim Blandy's avatar
Jim Blandy committed
225 226
#define Bconstant 0300
#define CONSTANTLIM 0100
Gerd Moellmann's avatar
Gerd Moellmann committed
227

228

Gerd Moellmann's avatar
Gerd Moellmann committed
229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263
/* Structure describing a value stack used during byte-code execution
   in Fbyte_code.  */

struct byte_stack
{
  /* Program counter.  This points into the byte_string below
     and is relocated when that string is relocated.  */
  unsigned char *pc;

  /* Top and bottom of stack.  The bottom points to an area of memory
     allocated with alloca in Fbyte_code.  */
  Lisp_Object *top, *bottom;

  /* The string containing the byte-code, and its current address.
     Storing this here protects it from GC because mark_byte_stack
     marks it.  */
  Lisp_Object byte_string;
  unsigned char *byte_string_start;

  /* The vector of constants used during byte-code execution.  Storing
     this here protects it from GC because mark_byte_stack marks it.  */
  Lisp_Object constants;

  /* Next entry in byte_stack_list.  */
  struct byte_stack *next;
};

/* A list of currently active byte-code execution value stacks.
   Fbyte_code adds an entry to the head of this list before it starts
   processing byte-code, and it removed the entry again when it is
   done.  Signalling an error truncates the list analoguous to
   gcprolist.  */

struct byte_stack *byte_stack_list;

264

Gerd Moellmann's avatar
Gerd Moellmann committed
265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303
/* Mark objects on byte_stack_list.  Called during GC.  */

void
mark_byte_stack ()
{
  struct byte_stack *stack;
  Lisp_Object *obj;

  for (stack = byte_stack_list; stack; stack = stack->next)
    {
      if (!stack->top)
	abort ();
      
      for (obj = stack->bottom; obj <= stack->top; ++obj)
	mark_object (obj);

      mark_object (&stack->byte_string);
      mark_object (&stack->constants);
    }
}


/* Relocate program counters in the stacks on byte_stack_list.  Called
   when GC has completed.  */

void 
relocate_byte_pcs ()
{
  struct byte_stack *stack;

  for (stack = byte_stack_list; stack; stack = stack->next)
    if (stack->byte_string_start != XSTRING (stack->byte_string)->data)
      {
	int offset = stack->pc - stack->byte_string_start;
	stack->byte_string_start = XSTRING (stack->byte_string)->data;
	stack->pc = stack->byte_string_start + offset;
      }
}

Jim Blandy's avatar
Jim Blandy committed
304 305 306

/* Fetch the next byte from the bytecode stream */

Gerd Moellmann's avatar
Gerd Moellmann committed
307
#define FETCH *stack.pc++
Jim Blandy's avatar
Jim Blandy committed
308

309 310
/* Fetch two bytes from the bytecode stream and make a 16-bit number
   out of them */
Jim Blandy's avatar
Jim Blandy committed
311 312 313

#define FETCH2 (op = FETCH, op + (FETCH << 8))

314 315 316 317
/* Push x onto the execution stack.  This used to be #define PUSH(x)
   (*++stackp = (x)) This oddity is necessary because Alliant can't be
   bothered to compile the preincrement operator properly, as of 4/91.
   -JimB */
Gerd Moellmann's avatar
Gerd Moellmann committed
318 319

#define PUSH(x) (top++, *top = (x))
Jim Blandy's avatar
Jim Blandy committed
320 321 322

/* Pop a value off the execution stack.  */

Gerd Moellmann's avatar
Gerd Moellmann committed
323
#define POP (*top--)
Jim Blandy's avatar
Jim Blandy committed
324 325 326

/* Discard n values from the execution stack.  */

Gerd Moellmann's avatar
Gerd Moellmann committed
327 328 329 330 331 332
#define DISCARD(n) (top -= (n))

/* Get the value which is at the top of the execution stack, but don't
   pop it. */

#define TOP (*top)
Jim Blandy's avatar
Jim Blandy committed
333

334
/* Actions that must be performed before and after calling a function
Gerd Moellmann's avatar
Gerd Moellmann committed
335
   that might GC.  */
Jim Blandy's avatar
Jim Blandy committed
336

Gerd Moellmann's avatar
Gerd Moellmann committed
337 338
#define BEFORE_POTENTIAL_GC()	stack.top = top
#define AFTER_POTENTIAL_GC()	stack.top = NULL
Jim Blandy's avatar
Jim Blandy committed
339

Richard M. Stallman's avatar
Richard M. Stallman committed
340 341 342 343 344
/* Garbage collect if we have consed enough since the last time.
   We do this at every branch, to avoid loops that never GC.  */

#define MAYBE_GC()				\
  if (consing_since_gc > gc_cons_threshold)	\
345
    {						\
Gerd Moellmann's avatar
Gerd Moellmann committed
346
      BEFORE_POTENTIAL_GC ();			\
347
      Fgarbage_collect ();			\
Gerd Moellmann's avatar
Gerd Moellmann committed
348
      AFTER_POTENTIAL_GC ();			\
349 350 351
    }						\
  else

352
/* Check for jumping out of range.  */
Gerd Moellmann's avatar
Gerd Moellmann committed
353 354 355

#ifdef BYTE_CODE_SAFE

356
#define CHECK_RANGE(ARG) \
357 358
  if (ARG >= bytestr_length) abort ()

359
#else /* not BYTE_CODE_SAFE */
Gerd Moellmann's avatar
Gerd Moellmann committed
360 361 362

#define CHECK_RANGE(ARG)

363
#endif /* not BYTE_CODE_SAFE */
Gerd Moellmann's avatar
Gerd Moellmann committed
364 365


Jim Blandy's avatar
Jim Blandy committed
366 367
DEFUN ("byte-code", Fbyte_code, Sbyte_code, 3, 3, 0,
  "Function used internally in byte-compiled code.\n\
368 369 370
The first argument, BYTESTR, is a string of byte code;\n\
the second, VECTOR, a vector of constants;\n\
the third, MAXDEPTH, the maximum stack depth used in this function.\n\
Jim Blandy's avatar
Jim Blandy committed
371 372 373 374 375 376 377 378 379
If the third argument is incorrect, Emacs may crash.")
  (bytestr, vector, maxdepth)
     Lisp_Object bytestr, vector, maxdepth;
{
  int count = specpdl_ptr - specpdl;
#ifdef BYTE_CODE_METER
  int this_op = 0;
  int prev_op;
#endif
Gerd Moellmann's avatar
Gerd Moellmann committed
380
  int op;
381
  /* Lisp_Object v1, v2; */
Gerd Moellmann's avatar
Gerd Moellmann committed
382
  Lisp_Object *vectorp = XVECTOR (vector)->contents;
Jim Blandy's avatar
Jim Blandy committed
383
#ifdef BYTE_CODE_SAFE
Gerd Moellmann's avatar
Gerd Moellmann committed
384 385
  int const_length = XVECTOR (vector)->size;
  Lisp_Object *stacke;
Jim Blandy's avatar
Jim Blandy committed
386
#endif
387
  int bytestr_length = STRING_BYTES (XSTRING (bytestr));
Gerd Moellmann's avatar
Gerd Moellmann committed
388 389
  struct byte_stack stack;
  Lisp_Object *top;
390
  Lisp_Object result;
Jim Blandy's avatar
Jim Blandy committed
391 392

  CHECK_STRING (bytestr, 0);
393
  if (!VECTORP (vector))
Jim Blandy's avatar
Jim Blandy committed
394 395 396
    vector = wrong_type_argument (Qvectorp, vector);
  CHECK_NUMBER (maxdepth, 2);

Gerd Moellmann's avatar
Gerd Moellmann committed
397 398 399 400 401 402 403 404 405
  stack.byte_string = bytestr;
  stack.pc = stack.byte_string_start = XSTRING (bytestr)->data;
  stack.constants = vector;
  stack.bottom = (Lisp_Object *) alloca (XFASTINT (maxdepth) 
                                         * sizeof (Lisp_Object));
  top = stack.bottom - 1;
  stack.top = NULL;
  stack.next = byte_stack_list;
  byte_stack_list = &stack;
Jim Blandy's avatar
Jim Blandy committed
406

Gerd Moellmann's avatar
Gerd Moellmann committed
407 408 409 410
#ifdef BYTE_CODE_SAFE
  stacke = stack.bottom - 1 + XFASTINT (maxdepth);
#endif
  
Jim Blandy's avatar
Jim Blandy committed
411 412 413
  while (1)
    {
#ifdef BYTE_CODE_SAFE
Gerd Moellmann's avatar
Gerd Moellmann committed
414
      if (top > stacks)
415
	error ("Byte code stack overflow (byte compiler bug), pc %d, depth %d",
Gerd Moellmann's avatar
Gerd Moellmann committed
416 417
	       stack.pc - stack.byte_string_start, stacke - top);
      else if (top < stack.bottom - 1)
418
	error ("Byte code stack underflow (byte compiler bug), pc %d",
Gerd Moellmann's avatar
Gerd Moellmann committed
419
	       stack.pc - stack.byte_string_start);
Jim Blandy's avatar
Jim Blandy committed
420 421 422 423 424 425 426
#endif

#ifdef BYTE_CODE_METER
      prev_op = this_op;
      this_op = op = FETCH;
      METER_CODE (prev_op, op);
#else
427
      op = FETCH;
Jim Blandy's avatar
Jim Blandy committed
428 429
#endif

430 431 432
      switch (op)
	{
	case Bvarref + 7:
Jim Blandy's avatar
Jim Blandy committed
433 434 435
	  op = FETCH2;
	  goto varref;

436 437 438 439 440 441
	case Bvarref: 
	case Bvarref + 1: 
	case Bvarref + 2: 
	case Bvarref + 3:
	case Bvarref + 4: 
	case Bvarref + 5:
Jim Blandy's avatar
Jim Blandy committed
442
	  op = op - Bvarref;
443 444 445 446 447 448
	  goto varref;

	/* This seems to be the most frequently executed byte-code
	   among the Bvarref's, so avoid a goto here.  */
	case Bvarref+6:
	  op = FETCH;
Jim Blandy's avatar
Jim Blandy committed
449
	varref:
450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469
	  {
	    Lisp_Object v1, v2;

	    v1 = vectorp[op];
	    if (SYMBOLP (v1))
	      {
		v2 = XSYMBOL (v1)->value;
		if (MISCP (v2) || EQ (v2, Qunbound))
		  v2 = Fsymbol_value (v1);
	      }
	    else
	      v2 = Fsymbol_value (v1);
	    PUSH (v2);
	    break;
	  }

	case Bgotoifnil:
	  MAYBE_GC ();
	  op = FETCH2;
	  if (NILP (POP))
Jim Blandy's avatar
Jim Blandy committed
470
	    {
471 472 473
	      QUIT;
	      CHECK_RANGE (op);
	      stack.pc = stack.byte_string_start + op;
Jim Blandy's avatar
Jim Blandy committed
474 475 476
	    }
	  break;

477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511
	case Bcar:
	  {
	    Lisp_Object v1;
	    v1 = TOP;
	    if (CONSP (v1)) TOP = XCAR (v1);
	    else if (NILP (v1)) TOP = Qnil;
	    else Fcar (wrong_type_argument (Qlistp, v1));
	    break;
	  }

	case Beq:
	  {
	    Lisp_Object v1;
	    v1 = POP;
	    TOP = EQ (v1, TOP) ? Qt : Qnil;
	    break;
	  }

	case Bmemq:
	  {
	    Lisp_Object v1;
	    v1 = POP;
	    TOP = Fmemq (TOP, v1);
	    break;
	  }

	case Bcdr:
	  {
	    Lisp_Object v1;
	    v1 = TOP;
	    if (CONSP (v1)) TOP = XCDR (v1);
	    else if (NILP (v1)) TOP = Qnil;
	    else Fcdr (wrong_type_argument (Qlistp, v1));
	    break;
	  }
Jim Blandy's avatar
Jim Blandy committed
512 513 514 515 516 517 518 519

	case Bvarset+7:
	  op = FETCH2;
	  goto varset;

	case Bvarset: case Bvarset+1: case Bvarset+2: case Bvarset+3:
	case Bvarset+4: case Bvarset+5:
	  op -= Bvarset;
520 521 522 523
	  goto varset;

	case Bvarset+6:
	  op = FETCH;
Jim Blandy's avatar
Jim Blandy committed
524
	varset:
525 526
	  set_internal (vectorp[op], POP, 0);
	  /* Fset (vectorp[op], POP); */
Jim Blandy's avatar
Jim Blandy committed
527 528
	  break;

529 530 531 532 533 534 535 536 537 538
	case Bdup:
	  {
	    Lisp_Object v1;
	    v1 = TOP;
	    PUSH (v1);
	    break;
	  }

	/* ------------------ */

Jim Blandy's avatar
Jim Blandy committed
539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565
	case Bvarbind+6:
	  op = FETCH;
	  goto varbind;

	case Bvarbind+7:
	  op = FETCH2;
	  goto varbind;

	case Bvarbind: case Bvarbind+1: case Bvarbind+2: case Bvarbind+3:
	case Bvarbind+4: case Bvarbind+5:
	  op -= Bvarbind;
	varbind:
	  specbind (vectorp[op], POP);
	  break;

	case Bcall+6:
	  op = FETCH;
	  goto docall;

	case Bcall+7:
	  op = FETCH2;
	  goto docall;

	case Bcall: case Bcall+1: case Bcall+2: case Bcall+3:
	case Bcall+4: case Bcall+5:
	  op -= Bcall;
	docall:
566 567
	  {
	    DISCARD (op);
568
#ifdef BYTE_CODE_METER
569 570 571 572 573 574 575 576 577 578 579 580 581
	    if (byte_metering_on && SYMBOLP (TOP))
	      {
		Lisp_Object v1, v2;

		v1 = TOP;
		v2 = Fget (v1, Qbyte_code_meter);
		if (INTEGERP (v2)
		    && XINT (v2) != ((1<<VALBITS)-1))
		  {
		    XSETINT (v2, XINT (v2) + 1);
		    Fput (v1, Qbyte_code_meter, v2);
		  }
	      }
582
#endif
583 584 585 586 587
	    BEFORE_POTENTIAL_GC ();
	    TOP = Ffuncall (op + 1, &TOP);
	    AFTER_POTENTIAL_GC ();
	    break;
	  }
Jim Blandy's avatar
Jim Blandy committed
588 589 590 591 592 593 594 595 596 597 598 599 600

	case Bunbind+6:
	  op = FETCH;
	  goto dounbind;

	case Bunbind+7:
	  op = FETCH2;
	  goto dounbind;

	case Bunbind: case Bunbind+1: case Bunbind+2: case Bunbind+3:
	case Bunbind+4: case Bunbind+5:
	  op -= Bunbind;
	dounbind:
Gerd Moellmann's avatar
Gerd Moellmann committed
601
	  BEFORE_POTENTIAL_GC ();
Jim Blandy's avatar
Jim Blandy committed
602
	  unbind_to (specpdl_ptr - specpdl - op, Qnil);
Gerd Moellmann's avatar
Gerd Moellmann committed
603
	  AFTER_POTENTIAL_GC ();
Jim Blandy's avatar
Jim Blandy committed
604 605 606 607
	  break;

	case Bunbind_all:
	  /* To unbind back to the beginning of this frame.  Not used yet,
608
	     but will be needed for tail-recursion elimination.  */
Gerd Moellmann's avatar
Gerd Moellmann committed
609
	  BEFORE_POTENTIAL_GC ();
Jim Blandy's avatar
Jim Blandy committed
610
	  unbind_to (count, Qnil);
Gerd Moellmann's avatar
Gerd Moellmann committed
611
	  AFTER_POTENTIAL_GC ();
Jim Blandy's avatar
Jim Blandy committed
612 613 614
	  break;

	case Bgoto:
Richard M. Stallman's avatar
Richard M. Stallman committed
615
	  MAYBE_GC ();
Jim Blandy's avatar
Jim Blandy committed
616 617
	  QUIT;
	  op = FETCH2;    /* pc = FETCH2 loses since FETCH2 contains pc++ */
618
	  CHECK_RANGE (op);
Gerd Moellmann's avatar
Gerd Moellmann committed
619
	  stack.pc = stack.byte_string_start + op;
Jim Blandy's avatar
Jim Blandy committed
620 621 622
	  break;

	case Bgotoifnonnil:
Richard M. Stallman's avatar
Richard M. Stallman committed
623
	  MAYBE_GC ();
Jim Blandy's avatar
Jim Blandy committed
624
	  op = FETCH2;
Joseph Arceneaux's avatar
Joseph Arceneaux committed
625
	  if (!NILP (POP))
Jim Blandy's avatar
Jim Blandy committed
626 627
	    {
	      QUIT;
628
	      CHECK_RANGE (op);
Gerd Moellmann's avatar
Gerd Moellmann committed
629
	      stack.pc = stack.byte_string_start + op;
Jim Blandy's avatar
Jim Blandy committed
630 631 632 633
	    }
	  break;

	case Bgotoifnilelsepop:
Richard M. Stallman's avatar
Richard M. Stallman committed
634
	  MAYBE_GC ();
Jim Blandy's avatar
Jim Blandy committed
635
	  op = FETCH2;
Joseph Arceneaux's avatar
Joseph Arceneaux committed
636
	  if (NILP (TOP))
Jim Blandy's avatar
Jim Blandy committed
637 638
	    {
	      QUIT;
639
	      CHECK_RANGE (op);
Gerd Moellmann's avatar
Gerd Moellmann committed
640
	      stack.pc = stack.byte_string_start + op;
Jim Blandy's avatar
Jim Blandy committed
641
	    }
642
	  else DISCARD (1);
Jim Blandy's avatar
Jim Blandy committed
643 644 645
	  break;

	case Bgotoifnonnilelsepop:
Richard M. Stallman's avatar
Richard M. Stallman committed
646
	  MAYBE_GC ();
Jim Blandy's avatar
Jim Blandy committed
647
	  op = FETCH2;
Joseph Arceneaux's avatar
Joseph Arceneaux committed
648
	  if (!NILP (TOP))
Jim Blandy's avatar
Jim Blandy committed
649 650
	    {
	      QUIT;
651
	      CHECK_RANGE (op);
Gerd Moellmann's avatar
Gerd Moellmann committed
652
	      stack.pc = stack.byte_string_start + op;
Jim Blandy's avatar
Jim Blandy committed
653
	    }
654 655 656 657
	  else DISCARD (1);
	  break;

	case BRgoto:
Richard M. Stallman's avatar
Richard M. Stallman committed
658
	  MAYBE_GC ();
659
	  QUIT;
Gerd Moellmann's avatar
Gerd Moellmann committed
660
	  stack.pc += (int) *stack.pc - 127;
661 662 663
	  break;

	case BRgotoifnil:
Richard M. Stallman's avatar
Richard M. Stallman committed
664
	  MAYBE_GC ();
665 666 667
	  if (NILP (POP))
	    {
	      QUIT;
Gerd Moellmann's avatar
Gerd Moellmann committed
668
	      stack.pc += (int) *stack.pc - 128;
669
	    }
Gerd Moellmann's avatar
Gerd Moellmann committed
670
	  stack.pc++;
671 672 673
	  break;

	case BRgotoifnonnil:
Richard M. Stallman's avatar
Richard M. Stallman committed
674
	  MAYBE_GC ();
675 676 677
	  if (!NILP (POP))
	    {
	      QUIT;
Gerd Moellmann's avatar
Gerd Moellmann committed
678
	      stack.pc += (int) *stack.pc - 128;
679
	    }
Gerd Moellmann's avatar
Gerd Moellmann committed
680
	  stack.pc++;
681 682 683
	  break;

	case BRgotoifnilelsepop:
Richard M. Stallman's avatar
Richard M. Stallman committed
684
	  MAYBE_GC ();
Gerd Moellmann's avatar
Gerd Moellmann committed
685
	  op = *stack.pc++;
686 687 688
	  if (NILP (TOP))
	    {
	      QUIT;
Gerd Moellmann's avatar
Gerd Moellmann committed
689
	      stack.pc += op - 128;
690 691 692 693 694
	    }
	  else DISCARD (1);
	  break;

	case BRgotoifnonnilelsepop:
Richard M. Stallman's avatar
Richard M. Stallman committed
695
	  MAYBE_GC ();
Gerd Moellmann's avatar
Gerd Moellmann committed
696
	  op = *stack.pc++;
697 698 699
	  if (!NILP (TOP))
	    {
	      QUIT;
Gerd Moellmann's avatar
Gerd Moellmann committed
700
	      stack.pc += op - 128;
701 702
	    }
	  else DISCARD (1);
Jim Blandy's avatar
Jim Blandy committed
703 704
	  break;

Jim Blandy's avatar
Jim Blandy committed
705
	case Breturn:
706
	  result = POP;
Jim Blandy's avatar
Jim Blandy committed
707 708 709
	  goto exit;

	case Bdiscard:
710
	  DISCARD (1);
Jim Blandy's avatar
Jim Blandy committed
711 712 713 714 715 716 717 718 719 720
	  break;

	case Bconstant2:
	  PUSH (vectorp[FETCH2]);
	  break;

	case Bsave_excursion:
	  record_unwind_protect (save_excursion_restore, save_excursion_save ());
	  break;

721
	case Bsave_current_buffer:
Richard M. Stallman's avatar
Richard M. Stallman committed
722
	case Bsave_current_buffer_1:
723
	  record_unwind_protect (set_buffer_if_live, Fcurrent_buffer ());
724 725
	  break;

Jim Blandy's avatar
Jim Blandy committed
726
	case Bsave_window_excursion:
727
	  BEFORE_POTENTIAL_GC ();
Jim Blandy's avatar
Jim Blandy committed
728
	  TOP = Fsave_window_excursion (TOP);
729
	  AFTER_POTENTIAL_GC ();
Jim Blandy's avatar
Jim Blandy committed
730 731 732 733 734 735 736
	  break;

	case Bsave_restriction:
	  record_unwind_protect (save_restriction_restore, save_restriction_save ());
	  break;

	case Bcatch:
737 738 739 740 741 742 743 744 745
	  {
	    Lisp_Object v1;

	    v1 = POP;
	    BEFORE_POTENTIAL_GC ();
	    TOP = internal_catch (TOP, Feval, v1);
	    AFTER_POTENTIAL_GC ();
	    break;
	  }
Jim Blandy's avatar
Jim Blandy committed
746 747 748 749 750 751 752

	case Bunwind_protect:
	  record_unwind_protect (0, POP);
	  (specpdl_ptr - 1)->symbol = Qnil;
	  break;

	case Bcondition_case:
753 754 755 756 757 758 759 760 761
	  {
	    Lisp_Object v1;
	    v1 = POP;
	    v1 = Fcons (POP, v1);
	    BEFORE_POTENTIAL_GC ();
	    TOP = Fcondition_case (Fcons (TOP, v1));
	    AFTER_POTENTIAL_GC ();
	    break;
	  }
Jim Blandy's avatar
Jim Blandy committed
762 763

	case Btemp_output_buffer_setup:
764
	  BEFORE_POTENTIAL_GC ();
Jim Blandy's avatar
Jim Blandy committed
765
	  temp_output_buffer_setup (XSTRING (TOP)->data);
766
	  AFTER_POTENTIAL_GC ();
Jim Blandy's avatar
Jim Blandy committed
767 768 769 770
	  TOP = Vstandard_output;
	  break;

	case Btemp_output_buffer_show:
771 772 773 774 775 776 777 778 779 780 781
	  {
	    Lisp_Object v1;
	    v1 = POP;
	    BEFORE_POTENTIAL_GC ();
	    temp_output_buffer_show (TOP);
	    TOP = v1;
	    /* pop binding of standard-output */
	    unbind_to (specpdl_ptr - specpdl - 1, Qnil);
	    AFTER_POTENTIAL_GC ();
	    break;
	  }
Jim Blandy's avatar
Jim Blandy committed
782 783

	case Bnth:
784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808
	  {
	    Lisp_Object v1, v2;
	    v1 = POP;
	    v2 = TOP;
	    CHECK_NUMBER (v2, 0);
	    op = XINT (v2);
	    immediate_quit = 1;
	    while (--op >= 0)
	      {
		if (CONSP (v1))
		  v1 = XCDR (v1);
		else if (!NILP (v1))
		  {
		    immediate_quit = 0;
		    v1 = wrong_type_argument (Qlistp, v1);
		    immediate_quit = 1;
		    op++;
		  }
	      }
	    immediate_quit = 0;
	    if (CONSP (v1)) TOP = XCAR (v1);
	    else if (NILP (v1)) TOP = Qnil;
	    else Fcar (wrong_type_argument (Qlistp, v1));
	    break;
	  }
Jim Blandy's avatar
Jim Blandy committed
809 810

	case Bsymbolp:
811
	  TOP = SYMBOLP (TOP) ? Qt : Qnil;
Jim Blandy's avatar
Jim Blandy committed
812 813 814 815 816 817 818
	  break;

	case Bconsp:
	  TOP = CONSP (TOP) ? Qt : Qnil;
	  break;

	case Bstringp:
819
	  TOP = STRINGP (TOP) ? Qt : Qnil;
Jim Blandy's avatar
Jim Blandy committed
820 821 822
	  break;

	case Blistp:
Joseph Arceneaux's avatar
Joseph Arceneaux committed
823
	  TOP = CONSP (TOP) || NILP (TOP) ? Qt : Qnil;
Jim Blandy's avatar
Jim Blandy committed
824 825 826
	  break;

	case Bnot:
Joseph Arceneaux's avatar
Joseph Arceneaux committed
827
	  TOP = NILP (TOP) ? Qt : Qnil;
Jim Blandy's avatar
Jim Blandy committed
828 829 830
	  break;

	case Bcons:
831 832 833 834 835 836
	  {
	    Lisp_Object v1;
	    v1 = POP;
	    TOP = Fcons (TOP, v1);
	    break;
	  }
Jim Blandy's avatar
Jim Blandy committed
837 838 839 840 841 842

	case Blist1:
	  TOP = Fcons (TOP, Qnil);
	  break;

	case Blist2:
843 844 845 846 847 848
	  {
	    Lisp_Object v1;
	    v1 = POP;
	    TOP = Fcons (TOP, Fcons (v1, Qnil));
	    break;
	  }
Jim Blandy's avatar
Jim Blandy committed
849 850

	case Blist3:
851
	  DISCARD (2);
Jim Blandy's avatar
Jim Blandy committed
852 853 854 855
	  TOP = Flist (3, &TOP);
	  break;

	case Blist4:
856
	  DISCARD (3);
Jim Blandy's avatar
Jim Blandy committed
857 858 859
	  TOP = Flist (4, &TOP);
	  break;

860 861 862 863 864 865
	case BlistN:
	  op = FETCH;
	  DISCARD (op - 1);
	  TOP = Flist (op, &TOP);
	  break;

Jim Blandy's avatar
Jim Blandy committed
866 867 868 869 870
	case Blength:
	  TOP = Flength (TOP);
	  break;

	case Baref:
871 872 873 874 875 876
	  {
	    Lisp_Object v1;
	    v1 = POP;
	    TOP = Faref (TOP, v1);
	    break;
	  }
Jim Blandy's avatar
Jim Blandy committed
877 878

	case Baset:
879 880 881 882 883 884
	  {
	    Lisp_Object v1, v2;
	    v2 = POP; v1 = POP;
	    TOP = Faset (TOP, v1, v2);
	    break;
	  }
Jim Blandy's avatar
Jim Blandy committed
885 886 887 888 889 890 891 892 893 894

	case Bsymbol_value:
	  TOP = Fsymbol_value (TOP);
	  break;

	case Bsymbol_function:
	  TOP = Fsymbol_function (TOP);
	  break;

	case Bset:
895 896 897 898 899 900
	  {
	    Lisp_Object v1;
	    v1 = POP;
	    TOP = Fset (TOP, v1);
	    break;
	  }
Jim Blandy's avatar
Jim Blandy committed
901 902

	case Bfset:
903 904 905 906 907 908
	  {
	    Lisp_Object v1;
	    v1 = POP;
	    TOP = Ffset (TOP, v1);
	    break;
	  }
Jim Blandy's avatar
Jim Blandy committed
909 910

	case Bget:
911 912 913 914 915 916
	  {
	    Lisp_Object v1;
	    v1 = POP;
	    TOP = Fget (TOP, v1);
	    break;
	  }
Jim Blandy's avatar
Jim Blandy committed
917 918

	case Bsubstring:
919 920 921 922 923 924
	  {
	    Lisp_Object v1, v2;
	    v2 = POP; v1 = POP;
	    TOP = Fsubstring (TOP, v1, v2);
	    break;
	  }
Jim Blandy's avatar
Jim Blandy committed
925 926

	case Bconcat2:
927
	  DISCARD (1);
Jim Blandy's avatar
Jim Blandy committed
928 929 930 931
	  TOP = Fconcat (2, &TOP);
	  break;

	case Bconcat3:
932
	  DISCARD (2);
Jim Blandy's avatar
Jim Blandy committed
933 934 935 936
	  TOP = Fconcat (3, &TOP);
	  break;

	case Bconcat4:
937
	  DISCARD (3);
Jim Blandy's avatar
Jim Blandy committed
938 939 940
	  TOP = Fconcat (4, &TOP);
	  break;

941 942 943 944 945 946
	case BconcatN:
	  op = FETCH;
	  DISCARD (op - 1);
	  TOP = Fconcat (op, &TOP);
	  break;

Jim Blandy's avatar
Jim Blandy committed
947
	case Bsub1:
948 949 950 951 952 953 954 955 956 957 958 959
	  {
	    Lisp_Object v1;
	    v1 = TOP;
	    if (INTEGERP (v1))
	      {
		XSETINT (v1, XINT (v1) - 1);
		TOP = v1;
	      }
	    else
	      TOP = Fsub1 (v1);
	    break;
	  }
Jim Blandy's avatar
Jim Blandy committed
960 961

	case Badd1:
962 963 964 965 966 967 968 969 970 971 972 973
	  {
	    Lisp_Object v1;
	    v1 = TOP;
	    if (INTEGERP (v1))
	      {
		XSETINT (v1, XINT (v1) + 1);
		TOP = v1;
	      }
	    else
	      TOP = Fadd1 (v1);
	    break;
	  }
Jim Blandy's avatar
Jim Blandy committed
974 975

	case Beqlsign:
976 977 978 979 980
	  {
	    Lisp_Object v1, v2;
	    v2 = POP; v1 = TOP;
	    CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (v1, 0);
	    CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (v2, 0);
981
#ifdef LISP_FLOAT_TYPE
982 983 984 985 986 987 988 989 990
	    if (FLOATP (v1) || FLOATP (v2))
	      {
		double f1, f2;

		f1 = (FLOATP (v1) ? XFLOAT_DATA (v1) : XINT (v1));
		f2 = (FLOATP (v2) ? XFLOAT_DATA (v2) : XINT (v2));
		TOP = (f1 == f2 ? Qt : Qnil);
	      }
	    else
991
#endif
992 993 994
	      TOP = (XINT (v1) == XINT (v2) ? Qt : Qnil);
	    break;
	  }
Jim Blandy's avatar
Jim Blandy committed
995 996

	case Bgtr:
997 998 999 1000 1001 1002
	  {
	    Lisp_Object v1;
	    v1 = POP;
	    TOP = Fgtr (TOP, v1);
	    break;
	  }
Jim Blandy's avatar
Jim Blandy committed
1003 1004

	case Blss:
1005 1006 1007 1008 1009 1010
	  {
	    Lisp_Object v1;
	    v1 = POP;
	    TOP = Flss (TOP, v1);
	    break;
	  }
Jim Blandy's avatar
Jim Blandy committed
1011 1012

	case Bleq:
1013 1014 1015 1016 1017 1018
	  {
	    Lisp_Object v1;
	    v1 = POP;
	    TOP = Fleq (TOP, v1);
	    break;
	  }
Jim Blandy's avatar
Jim Blandy committed
1019 1020

	case Bgeq:
1021 1022 1023 1024 1025 1026
	  {
	    Lisp_Object v1;
	    v1 = POP;
	    TOP = Fgeq (TOP, v1);
	    break;
	  }
Jim Blandy's avatar
Jim Blandy committed
1027 1028

	case Bdiff:
1029
	  DISCARD (1);
Jim Blandy's avatar
Jim Blandy committed
1030 1031 1032 1033
	  TOP = Fminus (2, &TOP);
	  break;

	case Bnegate:
1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045
	  {
	    Lisp_Object v1;
	    v1 = TOP;
	    if (INTEGERP (v1))
	      {
		XSETINT (v1, - XINT (v1));
		TOP = v1;
	      }
	    else
	      TOP = Fminus (1, &TOP);
	    break;
	  }
Jim Blandy's avatar
Jim Blandy committed
1046 1047

	case Bplus:
1048
	  DISCARD (1);
Jim Blandy's avatar
Jim Blandy committed
1049 1050 1051 1052
	  TOP = Fplus (2, &TOP);
	  break;

	case Bmax:
1053
	  DISCARD (1);
Jim Blandy's avatar
Jim Blandy committed
1054 1055 1056 1057
	  TOP = Fmax (2, &TOP);
	  break;

	case Bmin:
1058
	  DISCARD (1);
Jim Blandy's avatar
Jim Blandy committed
1059 1060 1061 1062
	  TOP = Fmin (2, &TOP);
	  break;

	case Bmult:
1063
	  DISCARD (1);
Jim Blandy's avatar
Jim Blandy committed
1064 1065 1066 1067
	  TOP = Ftimes (2, &TOP);
	  break;

	case Bquo:
1068
	  DISCARD (1);
Jim Blandy's avatar
Jim Blandy committed
1069 1070 1071 1072
	  TOP = Fquo (2, &TOP);
	  break;

	case Brem:
1073 1074 1075 1076 1077 1078
	  {
	    Lisp_Object v1;
	    v1 = POP;
	    TOP = Frem (TOP, v1);
	    break;
	  }
Jim Blandy's avatar
Jim Blandy committed
1079 1080

	case Bpoint:
1081 1082 1083 1084 1085 1086
	  {
	    Lisp_Object v1;
	    XSETFASTINT (v1, PT);
	    PUSH (v1);
	    break;
	  }
Jim Blandy's avatar
Jim Blandy committed
1087 1088

	case Bgoto_char:
1089
	  BEFORE_POTENTIAL_GC ();
Jim Blandy's avatar
Jim Blandy committed
1090
	  TOP = Fgoto_char (TOP);
1091
	  AFTER_POTENTIAL_GC ();
Jim Blandy's avatar
Jim Blandy committed
1092 1093 1094
	  break;

	case Binsert:
1095
	  BEFORE_POTENTIAL_GC ();
Jim Blandy's avatar
Jim Blandy committed
1096
	  TOP = Finsert (1, &TOP);
1097
	  AFTER_POTENTIAL_GC ();
Jim Blandy's avatar
Jim Blandy committed
1098 1099
	  break;

1100 1101 1102
	case BinsertN:
	  op = FETCH;
	  DISCARD (op - 1);
1103
	  BEFORE_POTENTIAL_GC ();
1104
	  TOP = Finsert (op, &TOP);
1105
	  AFTER_POTENTIAL_GC ();
1106 1107
	  break;

Jim Blandy's avatar
Jim Blandy committed
1108
	case Bpoint_max:
1109 1110 1111 1112 1113 1114
	  {
	    Lisp_Object v1;
	    XSETFASTINT (v1, ZV);
	    PUSH (v1);
	    break;
	  }
Jim Blandy's avatar
Jim Blandy committed
1115 1116

	case Bpoint_min:
1117 1118 1119 1120 1121 1122
	  {
	    Lisp_Object v1;
	    XSETFASTINT (v1, BEGV);
	    PUSH (v1);
	    break;
	  }
Jim Blandy's avatar
Jim Blandy committed
1123 1124 1125 1126 1127 1128

	case Bchar_after:
	  TOP = Fchar_after (TOP);
	  break;

	case Bfollowing_char:
1129 1130 1131 1132 1133 1134
	  {
	    Lisp_Object v1;
	    v1 = Ffollowing_char ();
	    PUSH (v1);
	    break;
	  }
Jim Blandy's avatar
Jim Blandy committed
1135 1136

	case Bpreceding_char:
1137 1138 1139 1140 1141 1142
	  {
	    Lisp_Object v1;
	    v1 = Fprevious_char ();
	    PUSH (v1);
	    break;
	  }
Jim Blandy's avatar
Jim Blandy committed
1143 1144

	case Bcurrent_column:
1145 1146 1147 1148 1149 1150
	  {
	    Lisp_Object v1;
	    XSETFASTINT (v1, current_column ());
	    PUSH (v1);
	    break;
	  }
Jim Blandy's avatar
Jim Blandy committed
1151 1152

	case Bindent_to:
1153
	  BEFORE_POTENTIAL_GC ();
Jim Blandy's avatar
Jim Blandy committed
1154
	  TOP = Findent_to (TOP, Qnil);
1155
	  AFTER_POTENTIAL_GC ();
Jim Blandy's avatar
Jim Blandy committed
1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178
	  break;

	case Beolp:
	  PUSH (Feolp ());
	  break;

	case Beobp:
	  PUSH (Feobp ());
	  break;

	case Bbolp:
	  PUSH (Fbolp ());
	  break;

	case Bbobp:
	  PUSH (Fbobp ());
	  break;

	case Bcurrent_buffer:
	  PUSH (Fcurrent_buffer ());
	  break;

	case Bset_buffer:
1179
	  BEFORE_POTENTIAL_GC ();
Jim Blandy's avatar
Jim Blandy committed
1180
	  TOP = Fset_buffer (TOP);
1181
	  AFTER_POTENTIAL_GC ();
Jim Blandy's avatar
Jim Blandy committed
1182 1183 1184 1185 1186 1187 1188
	  break;

	case Binteractive_p:
	  PUSH (Finteractive_p ());
	  break;

	case Bforward_char:
1189
	  BEFORE_POTENTIAL_GC ();
Jim Blandy's avatar
Jim Blandy committed
1190
	  TOP = Fforward_char (TOP);
1191
	  AFTER_POTENTIAL_GC ();
Jim Blandy's avatar
Jim Blandy committed
1192 1193 1194
	  break;

	case Bforward_word:
1195
	  BEFORE_POTENTIAL_GC ();
Jim Blandy's avatar
Jim Blandy committed
1196
	  TOP = Fforward_word (TOP);
1197
	  AFTER_POTENTIAL_GC ();
Jim Blandy's avatar
Jim Blandy committed
1198 1199 1200
	  break;

	case Bskip_chars_forward:
1201 1202 1203 1204 1205 1206 1207 1208
	  {
	    Lisp_Object v1;
	    v1 = POP;
	    BEFORE_POTENTIAL_GC ();
	    TOP = Fskip_chars_forward (TOP, v1);
	    AFTER_POTENTIAL_GC ();
	    break;
	  }
Jim Blandy's avatar
Jim Blandy committed
1209 1210

	case Bskip_chars_backward:
1211 1212 1213 1214 1215 1216 1217 1218
	  {
	    Lisp_Object v1;
	    v1 = POP;
	    BEFORE_POTENTIAL_GC ();
	    TOP = Fskip_chars_backward (TOP, v1);
	    AFTER_POTENTIAL_GC ();
	    break;
	  }
Jim Blandy's avatar
Jim Blandy committed
1219 1220

	case Bforward_line:
1221
	  BEFORE_POTENTIAL_GC ();
Jim Blandy's avatar
Jim Blandy committed
1222
	  TOP = Fforward_line (TOP);
1223
	  AFTER_POTENTIAL_GC ();
Jim Blandy's avatar
Jim Blandy committed
1224 1225 1226 1227
	  break;

	case Bchar_syntax:
	  CHECK_NUMBER (TOP, 0);
1228
	  XSETFASTINT (TOP, syntax_code_spec[(int) SYNTAX (XINT (TOP))]);
Jim Blandy's avatar
Jim Blandy committed
1229 1230 1231
	  break;

	case Bbuffer_substring:
1232 1233 1234 1235 1236 1237 1238 1239
	  {
	    Lisp_Object v1;
	    v1 = POP;
	    BEFORE_POTENTIAL_GC ();
	    TOP = Fbuffer_substring (TOP, v1);
	    AFTER_POTENTIAL_GC ();
	    break;
	  }
Jim Blandy's avatar
Jim Blandy committed
1240 1241

	case Bdelete_region:
1242 1243 1244 1245 1246 1247 1248 1249
	  {
	    Lisp_Object v1;
	    v1 = POP;
	    BEFORE_POTENTIAL_GC ();
	    TOP = Fdelete_region (TOP, v1);
	    AFTER_POTENTIAL_GC ();
	    break;
	  }
Jim Blandy's avatar
Jim Blandy committed
1250 1251

	case Bnarrow_to_region: