| 1 | /* Execution of byte code produced by bytecomp.el. |
| 2 | Copyright (C) 1985-1988, 1993, 2000-2012 Free Software Foundation, Inc. |
| 3 | |
| 4 | This file is part of GNU Emacs. |
| 5 | |
| 6 | GNU Emacs is free software: you can redistribute it and/or modify |
| 7 | it under the terms of the GNU General Public License as published by |
| 8 | the Free Software Foundation, either version 3 of the License, or |
| 9 | (at your option) any later version. |
| 10 | |
| 11 | GNU Emacs is distributed in the hope that it will be useful, |
| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | GNU General Public License for more details. |
| 15 | |
| 16 | You should have received a copy of the GNU General Public License |
| 17 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */ |
| 18 | |
| 19 | /* |
| 20 | hacked on by jwz@lucid.com 17-jun-91 |
| 21 | o added a compile-time switch to turn on simple sanity checking; |
| 22 | o put back the obsolete byte-codes for error-detection; |
| 23 | o added a new instruction, unbind_all, which I will use for |
| 24 | tail-recursion elimination; |
| 25 | o made temp_output_buffer_show be called with the right number |
| 26 | of args; |
| 27 | o made the new bytecodes be called with args in the right order; |
| 28 | o added metering support. |
| 29 | |
| 30 | by Hallvard: |
| 31 | o added relative jump instructions; |
| 32 | o all conditionals now only do QUIT if they jump. |
| 33 | */ |
| 34 | |
| 35 | #include <config.h> |
| 36 | |
| 37 | #include "lisp.h" |
| 38 | #include "character.h" |
| 39 | #include "buffer.h" |
| 40 | #include "syntax.h" |
| 41 | #include "window.h" |
| 42 | |
| 43 | #ifdef CHECK_FRAME_FONT |
| 44 | #include "frame.h" |
| 45 | #include "xterm.h" |
| 46 | #endif |
| 47 | |
| 48 | /* |
| 49 | * define BYTE_CODE_SAFE to enable some minor sanity checking (useful for |
| 50 | * debugging the byte compiler...) |
| 51 | * |
| 52 | * define BYTE_CODE_METER to enable generation of a byte-op usage histogram. |
| 53 | */ |
| 54 | /* #define BYTE_CODE_SAFE */ |
| 55 | /* #define BYTE_CODE_METER */ |
| 56 | |
| 57 | /* If BYTE_CODE_THREADED is defined, then the interpreter will be |
| 58 | indirect threaded, using GCC's computed goto extension. This code, |
| 59 | as currently implemented, is incompatible with BYTE_CODE_SAFE and |
| 60 | BYTE_CODE_METER. */ |
| 61 | #if defined (__GNUC__) && !defined (BYTE_CODE_SAFE) && !defined (BYTE_CODE_METER) |
| 62 | #define BYTE_CODE_THREADED |
| 63 | #endif |
| 64 | |
| 65 | \f |
| 66 | #ifdef BYTE_CODE_METER |
| 67 | |
| 68 | Lisp_Object Qbyte_code_meter; |
| 69 | #define METER_2(code1, code2) AREF (AREF (Vbyte_code_meter, code1), code2) |
| 70 | #define METER_1(code) METER_2 (0, code) |
| 71 | |
| 72 | #define METER_CODE(last_code, this_code) \ |
| 73 | { \ |
| 74 | if (byte_metering_on) \ |
| 75 | { \ |
| 76 | if (XFASTINT (METER_1 (this_code)) < MOST_POSITIVE_FIXNUM) \ |
| 77 | XSETFASTINT (METER_1 (this_code), \ |
| 78 | XFASTINT (METER_1 (this_code)) + 1); \ |
| 79 | if (last_code \ |
| 80 | && (XFASTINT (METER_2 (last_code, this_code)) \ |
| 81 | < MOST_POSITIVE_FIXNUM)) \ |
| 82 | XSETFASTINT (METER_2 (last_code, this_code), \ |
| 83 | XFASTINT (METER_2 (last_code, this_code)) + 1); \ |
| 84 | } \ |
| 85 | } |
| 86 | |
| 87 | #endif /* BYTE_CODE_METER */ |
| 88 | \f |
| 89 | |
| 90 | Lisp_Object Qbytecode; |
| 91 | |
| 92 | /* Byte codes: */ |
| 93 | |
| 94 | #define BYTE_CODES \ |
| 95 | DEFINE (Bstack_ref, 0) /* Actually, Bstack_ref+0 is not implemented: use dup. */ \ |
| 96 | DEFINE (Bstack_ref1, 1) \ |
| 97 | DEFINE (Bstack_ref2, 2) \ |
| 98 | DEFINE (Bstack_ref3, 3) \ |
| 99 | DEFINE (Bstack_ref4, 4) \ |
| 100 | DEFINE (Bstack_ref5, 5) \ |
| 101 | DEFINE (Bstack_ref6, 6) \ |
| 102 | DEFINE (Bstack_ref7, 7) \ |
| 103 | DEFINE (Bvarref, 010) \ |
| 104 | DEFINE (Bvarref1, 011) \ |
| 105 | DEFINE (Bvarref2, 012) \ |
| 106 | DEFINE (Bvarref3, 013) \ |
| 107 | DEFINE (Bvarref4, 014) \ |
| 108 | DEFINE (Bvarref5, 015) \ |
| 109 | DEFINE (Bvarref6, 016) \ |
| 110 | DEFINE (Bvarref7, 017) \ |
| 111 | DEFINE (Bvarset, 020) \ |
| 112 | DEFINE (Bvarset1, 021) \ |
| 113 | DEFINE (Bvarset2, 022) \ |
| 114 | DEFINE (Bvarset3, 023) \ |
| 115 | DEFINE (Bvarset4, 024) \ |
| 116 | DEFINE (Bvarset5, 025) \ |
| 117 | DEFINE (Bvarset6, 026) \ |
| 118 | DEFINE (Bvarset7, 027) \ |
| 119 | DEFINE (Bvarbind, 030) \ |
| 120 | DEFINE (Bvarbind1, 031) \ |
| 121 | DEFINE (Bvarbind2, 032) \ |
| 122 | DEFINE (Bvarbind3, 033) \ |
| 123 | DEFINE (Bvarbind4, 034) \ |
| 124 | DEFINE (Bvarbind5, 035) \ |
| 125 | DEFINE (Bvarbind6, 036) \ |
| 126 | DEFINE (Bvarbind7, 037) \ |
| 127 | DEFINE (Bcall, 040) \ |
| 128 | DEFINE (Bcall1, 041) \ |
| 129 | DEFINE (Bcall2, 042) \ |
| 130 | DEFINE (Bcall3, 043) \ |
| 131 | DEFINE (Bcall4, 044) \ |
| 132 | DEFINE (Bcall5, 045) \ |
| 133 | DEFINE (Bcall6, 046) \ |
| 134 | DEFINE (Bcall7, 047) \ |
| 135 | DEFINE (Bunbind, 050) \ |
| 136 | DEFINE (Bunbind1, 051) \ |
| 137 | DEFINE (Bunbind2, 052) \ |
| 138 | DEFINE (Bunbind3, 053) \ |
| 139 | DEFINE (Bunbind4, 054) \ |
| 140 | DEFINE (Bunbind5, 055) \ |
| 141 | DEFINE (Bunbind6, 056) \ |
| 142 | DEFINE (Bunbind7, 057) \ |
| 143 | \ |
| 144 | DEFINE (Bnth, 070) \ |
| 145 | DEFINE (Bsymbolp, 071) \ |
| 146 | DEFINE (Bconsp, 072) \ |
| 147 | DEFINE (Bstringp, 073) \ |
| 148 | DEFINE (Blistp, 074) \ |
| 149 | DEFINE (Beq, 075) \ |
| 150 | DEFINE (Bmemq, 076) \ |
| 151 | DEFINE (Bnot, 077) \ |
| 152 | DEFINE (Bcar, 0100) \ |
| 153 | DEFINE (Bcdr, 0101) \ |
| 154 | DEFINE (Bcons, 0102) \ |
| 155 | DEFINE (Blist1, 0103) \ |
| 156 | DEFINE (Blist2, 0104) \ |
| 157 | DEFINE (Blist3, 0105) \ |
| 158 | DEFINE (Blist4, 0106) \ |
| 159 | DEFINE (Blength, 0107) \ |
| 160 | DEFINE (Baref, 0110) \ |
| 161 | DEFINE (Baset, 0111) \ |
| 162 | DEFINE (Bsymbol_value, 0112) \ |
| 163 | DEFINE (Bsymbol_function, 0113) \ |
| 164 | DEFINE (Bset, 0114) \ |
| 165 | DEFINE (Bfset, 0115) \ |
| 166 | DEFINE (Bget, 0116) \ |
| 167 | DEFINE (Bsubstring, 0117) \ |
| 168 | DEFINE (Bconcat2, 0120) \ |
| 169 | DEFINE (Bconcat3, 0121) \ |
| 170 | DEFINE (Bconcat4, 0122) \ |
| 171 | DEFINE (Bsub1, 0123) \ |
| 172 | DEFINE (Badd1, 0124) \ |
| 173 | DEFINE (Beqlsign, 0125) \ |
| 174 | DEFINE (Bgtr, 0126) \ |
| 175 | DEFINE (Blss, 0127) \ |
| 176 | DEFINE (Bleq, 0130) \ |
| 177 | DEFINE (Bgeq, 0131) \ |
| 178 | DEFINE (Bdiff, 0132) \ |
| 179 | DEFINE (Bnegate, 0133) \ |
| 180 | DEFINE (Bplus, 0134) \ |
| 181 | DEFINE (Bmax, 0135) \ |
| 182 | DEFINE (Bmin, 0136) \ |
| 183 | DEFINE (Bmult, 0137) \ |
| 184 | \ |
| 185 | DEFINE (Bpoint, 0140) \ |
| 186 | /* Was Bmark in v17. */ \ |
| 187 | DEFINE (Bsave_current_buffer, 0141) /* Obsolete. */ \ |
| 188 | DEFINE (Bgoto_char, 0142) \ |
| 189 | DEFINE (Binsert, 0143) \ |
| 190 | DEFINE (Bpoint_max, 0144) \ |
| 191 | DEFINE (Bpoint_min, 0145) \ |
| 192 | DEFINE (Bchar_after, 0146) \ |
| 193 | DEFINE (Bfollowing_char, 0147) \ |
| 194 | DEFINE (Bpreceding_char, 0150) \ |
| 195 | DEFINE (Bcurrent_column, 0151) \ |
| 196 | DEFINE (Bindent_to, 0152) \ |
| 197 | DEFINE (Beolp, 0154) \ |
| 198 | DEFINE (Beobp, 0155) \ |
| 199 | DEFINE (Bbolp, 0156) \ |
| 200 | DEFINE (Bbobp, 0157) \ |
| 201 | DEFINE (Bcurrent_buffer, 0160) \ |
| 202 | DEFINE (Bset_buffer, 0161) \ |
| 203 | DEFINE (Bsave_current_buffer_1, 0162) /* Replacing Bsave_current_buffer. */ \ |
| 204 | DEFINE (Binteractive_p, 0164) /* Obsolete since Emacs-24.1. */ \ |
| 205 | \ |
| 206 | DEFINE (Bforward_char, 0165) \ |
| 207 | DEFINE (Bforward_word, 0166) \ |
| 208 | DEFINE (Bskip_chars_forward, 0167) \ |
| 209 | DEFINE (Bskip_chars_backward, 0170) \ |
| 210 | DEFINE (Bforward_line, 0171) \ |
| 211 | DEFINE (Bchar_syntax, 0172) \ |
| 212 | DEFINE (Bbuffer_substring, 0173) \ |
| 213 | DEFINE (Bdelete_region, 0174) \ |
| 214 | DEFINE (Bnarrow_to_region, 0175) \ |
| 215 | DEFINE (Bwiden, 0176) \ |
| 216 | DEFINE (Bend_of_line, 0177) \ |
| 217 | \ |
| 218 | DEFINE (Bconstant2, 0201) \ |
| 219 | DEFINE (Bgoto, 0202) \ |
| 220 | DEFINE (Bgotoifnil, 0203) \ |
| 221 | DEFINE (Bgotoifnonnil, 0204) \ |
| 222 | DEFINE (Bgotoifnilelsepop, 0205) \ |
| 223 | DEFINE (Bgotoifnonnilelsepop, 0206) \ |
| 224 | DEFINE (Breturn, 0207) \ |
| 225 | DEFINE (Bdiscard, 0210) \ |
| 226 | DEFINE (Bdup, 0211) \ |
| 227 | \ |
| 228 | DEFINE (Bsave_excursion, 0212) \ |
| 229 | DEFINE (Bsave_window_excursion, 0213) /* Obsolete since Emacs-24.1. */ \ |
| 230 | DEFINE (Bsave_restriction, 0214) \ |
| 231 | DEFINE (Bcatch, 0215) \ |
| 232 | \ |
| 233 | DEFINE (Bunwind_protect, 0216) \ |
| 234 | DEFINE (Bcondition_case, 0217) \ |
| 235 | DEFINE (Btemp_output_buffer_setup, 0220) /* Obsolete since Emacs-24.1. */ \ |
| 236 | DEFINE (Btemp_output_buffer_show, 0221) /* Obsolete since Emacs-24.1. */ \ |
| 237 | \ |
| 238 | DEFINE (Bunbind_all, 0222) /* Obsolete. Never used. */ \ |
| 239 | \ |
| 240 | DEFINE (Bset_marker, 0223) \ |
| 241 | DEFINE (Bmatch_beginning, 0224) \ |
| 242 | DEFINE (Bmatch_end, 0225) \ |
| 243 | DEFINE (Bupcase, 0226) \ |
| 244 | DEFINE (Bdowncase, 0227) \ |
| 245 | \ |
| 246 | DEFINE (Bstringeqlsign, 0230) \ |
| 247 | DEFINE (Bstringlss, 0231) \ |
| 248 | DEFINE (Bequal, 0232) \ |
| 249 | DEFINE (Bnthcdr, 0233) \ |
| 250 | DEFINE (Belt, 0234) \ |
| 251 | DEFINE (Bmember, 0235) \ |
| 252 | DEFINE (Bassq, 0236) \ |
| 253 | DEFINE (Bnreverse, 0237) \ |
| 254 | DEFINE (Bsetcar, 0240) \ |
| 255 | DEFINE (Bsetcdr, 0241) \ |
| 256 | DEFINE (Bcar_safe, 0242) \ |
| 257 | DEFINE (Bcdr_safe, 0243) \ |
| 258 | DEFINE (Bnconc, 0244) \ |
| 259 | DEFINE (Bquo, 0245) \ |
| 260 | DEFINE (Brem, 0246) \ |
| 261 | DEFINE (Bnumberp, 0247) \ |
| 262 | DEFINE (Bintegerp, 0250) \ |
| 263 | \ |
| 264 | DEFINE (BRgoto, 0252) \ |
| 265 | DEFINE (BRgotoifnil, 0253) \ |
| 266 | DEFINE (BRgotoifnonnil, 0254) \ |
| 267 | DEFINE (BRgotoifnilelsepop, 0255) \ |
| 268 | DEFINE (BRgotoifnonnilelsepop, 0256) \ |
| 269 | \ |
| 270 | DEFINE (BlistN, 0257) \ |
| 271 | DEFINE (BconcatN, 0260) \ |
| 272 | DEFINE (BinsertN, 0261) \ |
| 273 | \ |
| 274 | /* Bstack_ref is code 0. */ \ |
| 275 | DEFINE (Bstack_set, 0262) \ |
| 276 | DEFINE (Bstack_set2, 0263) \ |
| 277 | DEFINE (BdiscardN, 0266) \ |
| 278 | \ |
| 279 | DEFINE (Bconstant, 0300) |
| 280 | |
| 281 | enum byte_code_op |
| 282 | { |
| 283 | #define DEFINE(name, value) name = value, |
| 284 | BYTE_CODES |
| 285 | #undef DEFINE |
| 286 | |
| 287 | #ifdef BYTE_CODE_SAFE |
| 288 | Bscan_buffer = 0153, /* No longer generated as of v18. */ |
| 289 | Bset_mark = 0163 /* this loser is no longer generated as of v18 */ |
| 290 | #endif |
| 291 | }; |
| 292 | |
| 293 | /* Whether to maintain a `top' and `bottom' field in the stack frame. */ |
| 294 | #define BYTE_MAINTAIN_TOP (BYTE_CODE_SAFE || BYTE_MARK_STACK) |
| 295 | \f |
| 296 | /* Structure describing a value stack used during byte-code execution |
| 297 | in Fbyte_code. */ |
| 298 | |
| 299 | struct byte_stack |
| 300 | { |
| 301 | /* Program counter. This points into the byte_string below |
| 302 | and is relocated when that string is relocated. */ |
| 303 | const unsigned char *pc; |
| 304 | |
| 305 | /* Top and bottom of stack. The bottom points to an area of memory |
| 306 | allocated with alloca in Fbyte_code. */ |
| 307 | #if BYTE_MAINTAIN_TOP |
| 308 | Lisp_Object *top, *bottom; |
| 309 | #endif |
| 310 | |
| 311 | /* The string containing the byte-code, and its current address. |
| 312 | Storing this here protects it from GC because mark_byte_stack |
| 313 | marks it. */ |
| 314 | Lisp_Object byte_string; |
| 315 | const unsigned char *byte_string_start; |
| 316 | |
| 317 | /* The vector of constants used during byte-code execution. Storing |
| 318 | this here protects it from GC because mark_byte_stack marks it. */ |
| 319 | Lisp_Object constants; |
| 320 | |
| 321 | /* Next entry in byte_stack_list. */ |
| 322 | struct byte_stack *next; |
| 323 | }; |
| 324 | |
| 325 | /* A list of currently active byte-code execution value stacks. |
| 326 | Fbyte_code adds an entry to the head of this list before it starts |
| 327 | processing byte-code, and it removed the entry again when it is |
| 328 | done. Signaling an error truncates the list analogous to |
| 329 | gcprolist. */ |
| 330 | |
| 331 | struct byte_stack *byte_stack_list; |
| 332 | |
| 333 | \f |
| 334 | /* Mark objects on byte_stack_list. Called during GC. */ |
| 335 | |
| 336 | #if BYTE_MARK_STACK |
| 337 | void |
| 338 | mark_byte_stack (void) |
| 339 | { |
| 340 | struct byte_stack *stack; |
| 341 | Lisp_Object *obj; |
| 342 | |
| 343 | for (stack = byte_stack_list; stack; stack = stack->next) |
| 344 | { |
| 345 | /* If STACK->top is null here, this means there's an opcode in |
| 346 | Fbyte_code that wasn't expected to GC, but did. To find out |
| 347 | which opcode this is, record the value of `stack', and walk |
| 348 | up the stack in a debugger, stopping in frames of Fbyte_code. |
| 349 | The culprit is found in the frame of Fbyte_code where the |
| 350 | address of its local variable `stack' is equal to the |
| 351 | recorded value of `stack' here. */ |
| 352 | eassert (stack->top); |
| 353 | |
| 354 | for (obj = stack->bottom; obj <= stack->top; ++obj) |
| 355 | mark_object (*obj); |
| 356 | |
| 357 | mark_object (stack->byte_string); |
| 358 | mark_object (stack->constants); |
| 359 | } |
| 360 | } |
| 361 | #endif |
| 362 | |
| 363 | /* Unmark objects in the stacks on byte_stack_list. Relocate program |
| 364 | counters. Called when GC has completed. */ |
| 365 | |
| 366 | void |
| 367 | unmark_byte_stack (void) |
| 368 | { |
| 369 | struct byte_stack *stack; |
| 370 | |
| 371 | for (stack = byte_stack_list; stack; stack = stack->next) |
| 372 | { |
| 373 | if (stack->byte_string_start != SDATA (stack->byte_string)) |
| 374 | { |
| 375 | ptrdiff_t offset = stack->pc - stack->byte_string_start; |
| 376 | stack->byte_string_start = SDATA (stack->byte_string); |
| 377 | stack->pc = stack->byte_string_start + offset; |
| 378 | } |
| 379 | } |
| 380 | } |
| 381 | |
| 382 | \f |
| 383 | /* Fetch the next byte from the bytecode stream */ |
| 384 | |
| 385 | #define FETCH *stack.pc++ |
| 386 | |
| 387 | /* Fetch two bytes from the bytecode stream and make a 16-bit number |
| 388 | out of them */ |
| 389 | |
| 390 | #define FETCH2 (op = FETCH, op + (FETCH << 8)) |
| 391 | |
| 392 | /* Push x onto the execution stack. This used to be #define PUSH(x) |
| 393 | (*++stackp = (x)) This oddity is necessary because Alliant can't be |
| 394 | bothered to compile the preincrement operator properly, as of 4/91. |
| 395 | -JimB */ |
| 396 | |
| 397 | #define PUSH(x) (top++, *top = (x)) |
| 398 | |
| 399 | /* Pop a value off the execution stack. */ |
| 400 | |
| 401 | #define POP (*top--) |
| 402 | |
| 403 | /* Discard n values from the execution stack. */ |
| 404 | |
| 405 | #define DISCARD(n) (top -= (n)) |
| 406 | |
| 407 | /* Get the value which is at the top of the execution stack, but don't |
| 408 | pop it. */ |
| 409 | |
| 410 | #define TOP (*top) |
| 411 | |
| 412 | /* Actions that must be performed before and after calling a function |
| 413 | that might GC. */ |
| 414 | |
| 415 | #if !BYTE_MAINTAIN_TOP |
| 416 | #define BEFORE_POTENTIAL_GC() ((void)0) |
| 417 | #define AFTER_POTENTIAL_GC() ((void)0) |
| 418 | #else |
| 419 | #define BEFORE_POTENTIAL_GC() stack.top = top |
| 420 | #define AFTER_POTENTIAL_GC() stack.top = NULL |
| 421 | #endif |
| 422 | |
| 423 | /* Garbage collect if we have consed enough since the last time. |
| 424 | We do this at every branch, to avoid loops that never GC. */ |
| 425 | |
| 426 | #define MAYBE_GC() \ |
| 427 | do { \ |
| 428 | BEFORE_POTENTIAL_GC (); \ |
| 429 | maybe_gc (); \ |
| 430 | AFTER_POTENTIAL_GC (); \ |
| 431 | } while (0) |
| 432 | |
| 433 | /* Check for jumping out of range. */ |
| 434 | |
| 435 | #ifdef BYTE_CODE_SAFE |
| 436 | |
| 437 | #define CHECK_RANGE(ARG) \ |
| 438 | if (ARG >= bytestr_length) emacs_abort () |
| 439 | |
| 440 | #else /* not BYTE_CODE_SAFE */ |
| 441 | |
| 442 | #define CHECK_RANGE(ARG) |
| 443 | |
| 444 | #endif /* not BYTE_CODE_SAFE */ |
| 445 | |
| 446 | /* A version of the QUIT macro which makes sure that the stack top is |
| 447 | set before signaling `quit'. */ |
| 448 | |
| 449 | #define BYTE_CODE_QUIT \ |
| 450 | do { \ |
| 451 | if (!NILP (Vquit_flag) && NILP (Vinhibit_quit)) \ |
| 452 | { \ |
| 453 | Lisp_Object flag = Vquit_flag; \ |
| 454 | Vquit_flag = Qnil; \ |
| 455 | BEFORE_POTENTIAL_GC (); \ |
| 456 | if (EQ (Vthrow_on_input, flag)) \ |
| 457 | Fthrow (Vthrow_on_input, Qt); \ |
| 458 | Fsignal (Qquit, Qnil); \ |
| 459 | AFTER_POTENTIAL_GC (); \ |
| 460 | } \ |
| 461 | else if (pending_signals) \ |
| 462 | process_pending_signals (); \ |
| 463 | } while (0) |
| 464 | |
| 465 | |
| 466 | DEFUN ("byte-code", Fbyte_code, Sbyte_code, 3, 3, 0, |
| 467 | doc: /* Function used internally in byte-compiled code. |
| 468 | The first argument, BYTESTR, is a string of byte code; |
| 469 | the second, VECTOR, a vector of constants; |
| 470 | the third, MAXDEPTH, the maximum stack depth used in this function. |
| 471 | If the third argument is incorrect, Emacs may crash. */) |
| 472 | (Lisp_Object bytestr, Lisp_Object vector, Lisp_Object maxdepth) |
| 473 | { |
| 474 | return exec_byte_code (bytestr, vector, maxdepth, Qnil, 0, NULL); |
| 475 | } |
| 476 | |
| 477 | /* Execute the byte-code in BYTESTR. VECTOR is the constant vector, and |
| 478 | MAXDEPTH is the maximum stack depth used (if MAXDEPTH is incorrect, |
| 479 | emacs may crash!). If ARGS_TEMPLATE is non-nil, it should be a lisp |
| 480 | argument list (including &rest, &optional, etc.), and ARGS, of size |
| 481 | NARGS, should be a vector of the actual arguments. The arguments in |
| 482 | ARGS are pushed on the stack according to ARGS_TEMPLATE before |
| 483 | executing BYTESTR. */ |
| 484 | |
| 485 | Lisp_Object |
| 486 | exec_byte_code (Lisp_Object bytestr, Lisp_Object vector, Lisp_Object maxdepth, |
| 487 | Lisp_Object args_template, ptrdiff_t nargs, Lisp_Object *args) |
| 488 | { |
| 489 | ptrdiff_t count = SPECPDL_INDEX (); |
| 490 | #ifdef BYTE_CODE_METER |
| 491 | int this_op = 0; |
| 492 | int prev_op; |
| 493 | #endif |
| 494 | int op; |
| 495 | /* Lisp_Object v1, v2; */ |
| 496 | Lisp_Object *vectorp; |
| 497 | #ifdef BYTE_CODE_SAFE |
| 498 | ptrdiff_t const_length; |
| 499 | Lisp_Object *stacke; |
| 500 | ptrdiff_t bytestr_length; |
| 501 | #endif |
| 502 | struct byte_stack stack; |
| 503 | Lisp_Object *top; |
| 504 | Lisp_Object result; |
| 505 | |
| 506 | #if 0 /* CHECK_FRAME_FONT */ |
| 507 | { |
| 508 | struct frame *f = SELECTED_FRAME (); |
| 509 | if (FRAME_X_P (f) |
| 510 | && FRAME_FONT (f)->direction != 0 |
| 511 | && FRAME_FONT (f)->direction != 1) |
| 512 | emacs_abort (); |
| 513 | } |
| 514 | #endif |
| 515 | |
| 516 | CHECK_STRING (bytestr); |
| 517 | CHECK_VECTOR (vector); |
| 518 | CHECK_NATNUM (maxdepth); |
| 519 | |
| 520 | #ifdef BYTE_CODE_SAFE |
| 521 | const_length = ASIZE (vector); |
| 522 | #endif |
| 523 | |
| 524 | if (STRING_MULTIBYTE (bytestr)) |
| 525 | /* BYTESTR must have been produced by Emacs 20.2 or the earlier |
| 526 | because they produced a raw 8-bit string for byte-code and now |
| 527 | such a byte-code string is loaded as multibyte while raw 8-bit |
| 528 | characters converted to multibyte form. Thus, now we must |
| 529 | convert them back to the originally intended unibyte form. */ |
| 530 | bytestr = Fstring_as_unibyte (bytestr); |
| 531 | |
| 532 | #ifdef BYTE_CODE_SAFE |
| 533 | bytestr_length = SBYTES (bytestr); |
| 534 | #endif |
| 535 | vectorp = XVECTOR (vector)->contents; |
| 536 | |
| 537 | stack.byte_string = bytestr; |
| 538 | stack.pc = stack.byte_string_start = SDATA (bytestr); |
| 539 | stack.constants = vector; |
| 540 | if (MAX_ALLOCA / word_size <= XFASTINT (maxdepth)) |
| 541 | memory_full (SIZE_MAX); |
| 542 | top = alloca ((XFASTINT (maxdepth) + 1) * sizeof *top); |
| 543 | #if BYTE_MAINTAIN_TOP |
| 544 | stack.bottom = top + 1; |
| 545 | stack.top = NULL; |
| 546 | #endif |
| 547 | stack.next = byte_stack_list; |
| 548 | byte_stack_list = &stack; |
| 549 | |
| 550 | #ifdef BYTE_CODE_SAFE |
| 551 | stacke = stack.bottom - 1 + XFASTINT (maxdepth); |
| 552 | #endif |
| 553 | |
| 554 | if (INTEGERP (args_template)) |
| 555 | { |
| 556 | ptrdiff_t at = XINT (args_template); |
| 557 | bool rest = (at & 128) != 0; |
| 558 | int mandatory = at & 127; |
| 559 | ptrdiff_t nonrest = at >> 8; |
| 560 | eassert (mandatory <= nonrest); |
| 561 | if (nargs <= nonrest) |
| 562 | { |
| 563 | ptrdiff_t i; |
| 564 | for (i = 0 ; i < nargs; i++, args++) |
| 565 | PUSH (*args); |
| 566 | if (nargs < mandatory) |
| 567 | /* Too few arguments. */ |
| 568 | Fsignal (Qwrong_number_of_arguments, |
| 569 | Fcons (Fcons (make_number (mandatory), |
| 570 | rest ? Qand_rest : make_number (nonrest)), |
| 571 | Fcons (make_number (nargs), Qnil))); |
| 572 | else |
| 573 | { |
| 574 | for (; i < nonrest; i++) |
| 575 | PUSH (Qnil); |
| 576 | if (rest) |
| 577 | PUSH (Qnil); |
| 578 | } |
| 579 | } |
| 580 | else if (rest) |
| 581 | { |
| 582 | ptrdiff_t i; |
| 583 | for (i = 0 ; i < nonrest; i++, args++) |
| 584 | PUSH (*args); |
| 585 | PUSH (Flist (nargs - nonrest, args)); |
| 586 | } |
| 587 | else |
| 588 | /* Too many arguments. */ |
| 589 | Fsignal (Qwrong_number_of_arguments, |
| 590 | Fcons (Fcons (make_number (mandatory), |
| 591 | make_number (nonrest)), |
| 592 | Fcons (make_number (nargs), Qnil))); |
| 593 | } |
| 594 | else if (! NILP (args_template)) |
| 595 | /* We should push some arguments on the stack. */ |
| 596 | { |
| 597 | error ("Unknown args template!"); |
| 598 | } |
| 599 | |
| 600 | while (1) |
| 601 | { |
| 602 | #ifdef BYTE_CODE_SAFE |
| 603 | if (top > stacke) |
| 604 | emacs_abort (); |
| 605 | else if (top < stack.bottom - 1) |
| 606 | emacs_abort (); |
| 607 | #endif |
| 608 | |
| 609 | #ifdef BYTE_CODE_METER |
| 610 | prev_op = this_op; |
| 611 | this_op = op = FETCH; |
| 612 | METER_CODE (prev_op, op); |
| 613 | #else |
| 614 | #ifndef BYTE_CODE_THREADED |
| 615 | op = FETCH; |
| 616 | #endif |
| 617 | #endif |
| 618 | |
| 619 | /* The interpreter can be compiled one of two ways: as an |
| 620 | ordinary switch-based interpreter, or as a threaded |
| 621 | interpreter. The threaded interpreter relies on GCC's |
| 622 | computed goto extension, so it is not available everywhere. |
| 623 | Threading provides a performance boost. These macros are how |
| 624 | we allow the code to be compiled both ways. */ |
| 625 | #ifdef BYTE_CODE_THREADED |
| 626 | /* The CASE macro introduces an instruction's body. It is |
| 627 | either a label or a case label. */ |
| 628 | #define CASE(OP) insn_ ## OP |
| 629 | /* NEXT is invoked at the end of an instruction to go to the |
| 630 | next instruction. It is either a computed goto, or a |
| 631 | plain break. */ |
| 632 | #define NEXT goto *(targets[op = FETCH]) |
| 633 | /* FIRST is like NEXT, but is only used at the start of the |
| 634 | interpreter body. In the switch-based interpreter it is the |
| 635 | switch, so the threaded definition must include a semicolon. */ |
| 636 | #define FIRST NEXT; |
| 637 | /* Most cases are labeled with the CASE macro, above. |
| 638 | CASE_DEFAULT is one exception; it is used if the interpreter |
| 639 | being built requires a default case. The threaded |
| 640 | interpreter does not, because the dispatch table is |
| 641 | completely filled. */ |
| 642 | #define CASE_DEFAULT |
| 643 | /* This introduces an instruction that is known to call abort. */ |
| 644 | #define CASE_ABORT CASE (Bstack_ref): CASE (default) |
| 645 | #else |
| 646 | /* See above for the meaning of the various defines. */ |
| 647 | #define CASE(OP) case OP |
| 648 | #define NEXT break |
| 649 | #define FIRST switch (op) |
| 650 | #define CASE_DEFAULT case 255: default: |
| 651 | #define CASE_ABORT case 0 |
| 652 | #endif |
| 653 | |
| 654 | #ifdef BYTE_CODE_THREADED |
| 655 | |
| 656 | /* A convenience define that saves us a lot of typing and makes |
| 657 | the table clearer. */ |
| 658 | #define LABEL(OP) [OP] = &&insn_ ## OP |
| 659 | |
| 660 | #if (__GNUC__ == 4 && 6 <= __GNUC_MINOR__) || 4 < __GNUC__ |
| 661 | # pragma GCC diagnostic push |
| 662 | # pragma GCC diagnostic ignored "-Woverride-init" |
| 663 | #endif |
| 664 | |
| 665 | /* This is the dispatch table for the threaded interpreter. */ |
| 666 | static const void *const targets[256] = |
| 667 | { |
| 668 | [0 ... (Bconstant - 1)] = &&insn_default, |
| 669 | [Bconstant ... 255] = &&insn_Bconstant, |
| 670 | |
| 671 | #define DEFINE(name, value) LABEL (name) , |
| 672 | BYTE_CODES |
| 673 | #undef DEFINE |
| 674 | }; |
| 675 | |
| 676 | #if (__GNUC__ == 4 && 6 <= __GNUC_MINOR__) || 4 < __GNUC__ |
| 677 | # pragma GCC diagnostic pop |
| 678 | #endif |
| 679 | |
| 680 | #endif |
| 681 | |
| 682 | |
| 683 | FIRST |
| 684 | { |
| 685 | CASE (Bvarref7): |
| 686 | op = FETCH2; |
| 687 | goto varref; |
| 688 | |
| 689 | CASE (Bvarref): |
| 690 | CASE (Bvarref1): |
| 691 | CASE (Bvarref2): |
| 692 | CASE (Bvarref3): |
| 693 | CASE (Bvarref4): |
| 694 | CASE (Bvarref5): |
| 695 | op = op - Bvarref; |
| 696 | goto varref; |
| 697 | |
| 698 | /* This seems to be the most frequently executed byte-code |
| 699 | among the Bvarref's, so avoid a goto here. */ |
| 700 | CASE (Bvarref6): |
| 701 | op = FETCH; |
| 702 | varref: |
| 703 | { |
| 704 | Lisp_Object v1, v2; |
| 705 | |
| 706 | v1 = vectorp[op]; |
| 707 | if (SYMBOLP (v1)) |
| 708 | { |
| 709 | if (XSYMBOL (v1)->redirect != SYMBOL_PLAINVAL |
| 710 | || (v2 = SYMBOL_VAL (XSYMBOL (v1)), |
| 711 | EQ (v2, Qunbound))) |
| 712 | { |
| 713 | BEFORE_POTENTIAL_GC (); |
| 714 | v2 = Fsymbol_value (v1); |
| 715 | AFTER_POTENTIAL_GC (); |
| 716 | } |
| 717 | } |
| 718 | else |
| 719 | { |
| 720 | BEFORE_POTENTIAL_GC (); |
| 721 | v2 = Fsymbol_value (v1); |
| 722 | AFTER_POTENTIAL_GC (); |
| 723 | } |
| 724 | PUSH (v2); |
| 725 | NEXT; |
| 726 | } |
| 727 | |
| 728 | CASE (Bgotoifnil): |
| 729 | { |
| 730 | Lisp_Object v1; |
| 731 | MAYBE_GC (); |
| 732 | op = FETCH2; |
| 733 | v1 = POP; |
| 734 | if (NILP (v1)) |
| 735 | { |
| 736 | BYTE_CODE_QUIT; |
| 737 | CHECK_RANGE (op); |
| 738 | stack.pc = stack.byte_string_start + op; |
| 739 | } |
| 740 | NEXT; |
| 741 | } |
| 742 | |
| 743 | CASE (Bcar): |
| 744 | { |
| 745 | Lisp_Object v1; |
| 746 | v1 = TOP; |
| 747 | if (CONSP (v1)) |
| 748 | TOP = XCAR (v1); |
| 749 | else if (NILP (v1)) |
| 750 | TOP = Qnil; |
| 751 | else |
| 752 | { |
| 753 | BEFORE_POTENTIAL_GC (); |
| 754 | wrong_type_argument (Qlistp, v1); |
| 755 | AFTER_POTENTIAL_GC (); |
| 756 | } |
| 757 | NEXT; |
| 758 | } |
| 759 | |
| 760 | CASE (Beq): |
| 761 | { |
| 762 | Lisp_Object v1; |
| 763 | v1 = POP; |
| 764 | TOP = EQ (v1, TOP) ? Qt : Qnil; |
| 765 | NEXT; |
| 766 | } |
| 767 | |
| 768 | CASE (Bmemq): |
| 769 | { |
| 770 | Lisp_Object v1; |
| 771 | BEFORE_POTENTIAL_GC (); |
| 772 | v1 = POP; |
| 773 | TOP = Fmemq (TOP, v1); |
| 774 | AFTER_POTENTIAL_GC (); |
| 775 | NEXT; |
| 776 | } |
| 777 | |
| 778 | CASE (Bcdr): |
| 779 | { |
| 780 | Lisp_Object v1; |
| 781 | v1 = TOP; |
| 782 | if (CONSP (v1)) |
| 783 | TOP = XCDR (v1); |
| 784 | else if (NILP (v1)) |
| 785 | TOP = Qnil; |
| 786 | else |
| 787 | { |
| 788 | BEFORE_POTENTIAL_GC (); |
| 789 | wrong_type_argument (Qlistp, v1); |
| 790 | AFTER_POTENTIAL_GC (); |
| 791 | } |
| 792 | NEXT; |
| 793 | } |
| 794 | |
| 795 | CASE (Bvarset): |
| 796 | CASE (Bvarset1): |
| 797 | CASE (Bvarset2): |
| 798 | CASE (Bvarset3): |
| 799 | CASE (Bvarset4): |
| 800 | CASE (Bvarset5): |
| 801 | op -= Bvarset; |
| 802 | goto varset; |
| 803 | |
| 804 | CASE (Bvarset7): |
| 805 | op = FETCH2; |
| 806 | goto varset; |
| 807 | |
| 808 | CASE (Bvarset6): |
| 809 | op = FETCH; |
| 810 | varset: |
| 811 | { |
| 812 | Lisp_Object sym, val; |
| 813 | |
| 814 | sym = vectorp[op]; |
| 815 | val = TOP; |
| 816 | |
| 817 | /* Inline the most common case. */ |
| 818 | if (SYMBOLP (sym) |
| 819 | && !EQ (val, Qunbound) |
| 820 | && !XSYMBOL (sym)->redirect |
| 821 | && !SYMBOL_CONSTANT_P (sym)) |
| 822 | SET_SYMBOL_VAL (XSYMBOL (sym), val); |
| 823 | else |
| 824 | { |
| 825 | BEFORE_POTENTIAL_GC (); |
| 826 | set_internal (sym, val, Qnil, 0); |
| 827 | AFTER_POTENTIAL_GC (); |
| 828 | } |
| 829 | } |
| 830 | (void) POP; |
| 831 | NEXT; |
| 832 | |
| 833 | CASE (Bdup): |
| 834 | { |
| 835 | Lisp_Object v1; |
| 836 | v1 = TOP; |
| 837 | PUSH (v1); |
| 838 | NEXT; |
| 839 | } |
| 840 | |
| 841 | /* ------------------ */ |
| 842 | |
| 843 | CASE (Bvarbind6): |
| 844 | op = FETCH; |
| 845 | goto varbind; |
| 846 | |
| 847 | CASE (Bvarbind7): |
| 848 | op = FETCH2; |
| 849 | goto varbind; |
| 850 | |
| 851 | CASE (Bvarbind): |
| 852 | CASE (Bvarbind1): |
| 853 | CASE (Bvarbind2): |
| 854 | CASE (Bvarbind3): |
| 855 | CASE (Bvarbind4): |
| 856 | CASE (Bvarbind5): |
| 857 | op -= Bvarbind; |
| 858 | varbind: |
| 859 | /* Specbind can signal and thus GC. */ |
| 860 | BEFORE_POTENTIAL_GC (); |
| 861 | specbind (vectorp[op], POP); |
| 862 | AFTER_POTENTIAL_GC (); |
| 863 | NEXT; |
| 864 | |
| 865 | CASE (Bcall6): |
| 866 | op = FETCH; |
| 867 | goto docall; |
| 868 | |
| 869 | CASE (Bcall7): |
| 870 | op = FETCH2; |
| 871 | goto docall; |
| 872 | |
| 873 | CASE (Bcall): |
| 874 | CASE (Bcall1): |
| 875 | CASE (Bcall2): |
| 876 | CASE (Bcall3): |
| 877 | CASE (Bcall4): |
| 878 | CASE (Bcall5): |
| 879 | op -= Bcall; |
| 880 | docall: |
| 881 | { |
| 882 | BEFORE_POTENTIAL_GC (); |
| 883 | DISCARD (op); |
| 884 | #ifdef BYTE_CODE_METER |
| 885 | if (byte_metering_on && SYMBOLP (TOP)) |
| 886 | { |
| 887 | Lisp_Object v1, v2; |
| 888 | |
| 889 | v1 = TOP; |
| 890 | v2 = Fget (v1, Qbyte_code_meter); |
| 891 | if (INTEGERP (v2) |
| 892 | && XINT (v2) < MOST_POSITIVE_FIXNUM) |
| 893 | { |
| 894 | XSETINT (v2, XINT (v2) + 1); |
| 895 | Fput (v1, Qbyte_code_meter, v2); |
| 896 | } |
| 897 | } |
| 898 | #endif |
| 899 | TOP = Ffuncall (op + 1, &TOP); |
| 900 | AFTER_POTENTIAL_GC (); |
| 901 | NEXT; |
| 902 | } |
| 903 | |
| 904 | CASE (Bunbind6): |
| 905 | op = FETCH; |
| 906 | goto dounbind; |
| 907 | |
| 908 | CASE (Bunbind7): |
| 909 | op = FETCH2; |
| 910 | goto dounbind; |
| 911 | |
| 912 | CASE (Bunbind): |
| 913 | CASE (Bunbind1): |
| 914 | CASE (Bunbind2): |
| 915 | CASE (Bunbind3): |
| 916 | CASE (Bunbind4): |
| 917 | CASE (Bunbind5): |
| 918 | op -= Bunbind; |
| 919 | dounbind: |
| 920 | BEFORE_POTENTIAL_GC (); |
| 921 | unbind_to (SPECPDL_INDEX () - op, Qnil); |
| 922 | AFTER_POTENTIAL_GC (); |
| 923 | NEXT; |
| 924 | |
| 925 | CASE (Bunbind_all): /* Obsolete. Never used. */ |
| 926 | /* To unbind back to the beginning of this frame. Not used yet, |
| 927 | but will be needed for tail-recursion elimination. */ |
| 928 | BEFORE_POTENTIAL_GC (); |
| 929 | unbind_to (count, Qnil); |
| 930 | AFTER_POTENTIAL_GC (); |
| 931 | NEXT; |
| 932 | |
| 933 | CASE (Bgoto): |
| 934 | MAYBE_GC (); |
| 935 | BYTE_CODE_QUIT; |
| 936 | op = FETCH2; /* pc = FETCH2 loses since FETCH2 contains pc++ */ |
| 937 | CHECK_RANGE (op); |
| 938 | stack.pc = stack.byte_string_start + op; |
| 939 | NEXT; |
| 940 | |
| 941 | CASE (Bgotoifnonnil): |
| 942 | { |
| 943 | Lisp_Object v1; |
| 944 | MAYBE_GC (); |
| 945 | op = FETCH2; |
| 946 | v1 = POP; |
| 947 | if (!NILP (v1)) |
| 948 | { |
| 949 | BYTE_CODE_QUIT; |
| 950 | CHECK_RANGE (op); |
| 951 | stack.pc = stack.byte_string_start + op; |
| 952 | } |
| 953 | NEXT; |
| 954 | } |
| 955 | |
| 956 | CASE (Bgotoifnilelsepop): |
| 957 | MAYBE_GC (); |
| 958 | op = FETCH2; |
| 959 | if (NILP (TOP)) |
| 960 | { |
| 961 | BYTE_CODE_QUIT; |
| 962 | CHECK_RANGE (op); |
| 963 | stack.pc = stack.byte_string_start + op; |
| 964 | } |
| 965 | else DISCARD (1); |
| 966 | NEXT; |
| 967 | |
| 968 | CASE (Bgotoifnonnilelsepop): |
| 969 | MAYBE_GC (); |
| 970 | op = FETCH2; |
| 971 | if (!NILP (TOP)) |
| 972 | { |
| 973 | BYTE_CODE_QUIT; |
| 974 | CHECK_RANGE (op); |
| 975 | stack.pc = stack.byte_string_start + op; |
| 976 | } |
| 977 | else DISCARD (1); |
| 978 | NEXT; |
| 979 | |
| 980 | CASE (BRgoto): |
| 981 | MAYBE_GC (); |
| 982 | BYTE_CODE_QUIT; |
| 983 | stack.pc += (int) *stack.pc - 127; |
| 984 | NEXT; |
| 985 | |
| 986 | CASE (BRgotoifnil): |
| 987 | { |
| 988 | Lisp_Object v1; |
| 989 | MAYBE_GC (); |
| 990 | v1 = POP; |
| 991 | if (NILP (v1)) |
| 992 | { |
| 993 | BYTE_CODE_QUIT; |
| 994 | stack.pc += (int) *stack.pc - 128; |
| 995 | } |
| 996 | stack.pc++; |
| 997 | NEXT; |
| 998 | } |
| 999 | |
| 1000 | CASE (BRgotoifnonnil): |
| 1001 | { |
| 1002 | Lisp_Object v1; |
| 1003 | MAYBE_GC (); |
| 1004 | v1 = POP; |
| 1005 | if (!NILP (v1)) |
| 1006 | { |
| 1007 | BYTE_CODE_QUIT; |
| 1008 | stack.pc += (int) *stack.pc - 128; |
| 1009 | } |
| 1010 | stack.pc++; |
| 1011 | NEXT; |
| 1012 | } |
| 1013 | |
| 1014 | CASE (BRgotoifnilelsepop): |
| 1015 | MAYBE_GC (); |
| 1016 | op = *stack.pc++; |
| 1017 | if (NILP (TOP)) |
| 1018 | { |
| 1019 | BYTE_CODE_QUIT; |
| 1020 | stack.pc += op - 128; |
| 1021 | } |
| 1022 | else DISCARD (1); |
| 1023 | NEXT; |
| 1024 | |
| 1025 | CASE (BRgotoifnonnilelsepop): |
| 1026 | MAYBE_GC (); |
| 1027 | op = *stack.pc++; |
| 1028 | if (!NILP (TOP)) |
| 1029 | { |
| 1030 | BYTE_CODE_QUIT; |
| 1031 | stack.pc += op - 128; |
| 1032 | } |
| 1033 | else DISCARD (1); |
| 1034 | NEXT; |
| 1035 | |
| 1036 | CASE (Breturn): |
| 1037 | result = POP; |
| 1038 | goto exit; |
| 1039 | |
| 1040 | CASE (Bdiscard): |
| 1041 | DISCARD (1); |
| 1042 | NEXT; |
| 1043 | |
| 1044 | CASE (Bconstant2): |
| 1045 | PUSH (vectorp[FETCH2]); |
| 1046 | NEXT; |
| 1047 | |
| 1048 | CASE (Bsave_excursion): |
| 1049 | record_unwind_protect (save_excursion_restore, |
| 1050 | save_excursion_save ()); |
| 1051 | NEXT; |
| 1052 | |
| 1053 | CASE (Bsave_current_buffer): /* Obsolete since ??. */ |
| 1054 | CASE (Bsave_current_buffer_1): |
| 1055 | record_unwind_current_buffer (); |
| 1056 | NEXT; |
| 1057 | |
| 1058 | CASE (Bsave_window_excursion): /* Obsolete since 24.1. */ |
| 1059 | { |
| 1060 | register ptrdiff_t count1 = SPECPDL_INDEX (); |
| 1061 | record_unwind_protect (Fset_window_configuration, |
| 1062 | Fcurrent_window_configuration (Qnil)); |
| 1063 | BEFORE_POTENTIAL_GC (); |
| 1064 | TOP = Fprogn (TOP); |
| 1065 | unbind_to (count1, TOP); |
| 1066 | AFTER_POTENTIAL_GC (); |
| 1067 | NEXT; |
| 1068 | } |
| 1069 | |
| 1070 | CASE (Bsave_restriction): |
| 1071 | record_unwind_protect (save_restriction_restore, |
| 1072 | save_restriction_save ()); |
| 1073 | NEXT; |
| 1074 | |
| 1075 | CASE (Bcatch): /* FIXME: ill-suited for lexbind. */ |
| 1076 | { |
| 1077 | Lisp_Object v1; |
| 1078 | BEFORE_POTENTIAL_GC (); |
| 1079 | v1 = POP; |
| 1080 | TOP = internal_catch (TOP, eval_sub, v1); |
| 1081 | AFTER_POTENTIAL_GC (); |
| 1082 | NEXT; |
| 1083 | } |
| 1084 | |
| 1085 | CASE (Bunwind_protect): /* FIXME: avoid closure for lexbind. */ |
| 1086 | record_unwind_protect (Fprogn, POP); |
| 1087 | NEXT; |
| 1088 | |
| 1089 | CASE (Bcondition_case): /* FIXME: ill-suited for lexbind. */ |
| 1090 | { |
| 1091 | Lisp_Object handlers, body; |
| 1092 | handlers = POP; |
| 1093 | body = POP; |
| 1094 | BEFORE_POTENTIAL_GC (); |
| 1095 | TOP = internal_lisp_condition_case (TOP, body, handlers); |
| 1096 | AFTER_POTENTIAL_GC (); |
| 1097 | NEXT; |
| 1098 | } |
| 1099 | |
| 1100 | CASE (Btemp_output_buffer_setup): /* Obsolete since 24.1. */ |
| 1101 | BEFORE_POTENTIAL_GC (); |
| 1102 | CHECK_STRING (TOP); |
| 1103 | temp_output_buffer_setup (SSDATA (TOP)); |
| 1104 | AFTER_POTENTIAL_GC (); |
| 1105 | TOP = Vstandard_output; |
| 1106 | NEXT; |
| 1107 | |
| 1108 | CASE (Btemp_output_buffer_show): /* Obsolete since 24.1. */ |
| 1109 | { |
| 1110 | Lisp_Object v1; |
| 1111 | BEFORE_POTENTIAL_GC (); |
| 1112 | v1 = POP; |
| 1113 | temp_output_buffer_show (TOP); |
| 1114 | TOP = v1; |
| 1115 | /* pop binding of standard-output */ |
| 1116 | unbind_to (SPECPDL_INDEX () - 1, Qnil); |
| 1117 | AFTER_POTENTIAL_GC (); |
| 1118 | NEXT; |
| 1119 | } |
| 1120 | |
| 1121 | CASE (Bnth): |
| 1122 | { |
| 1123 | Lisp_Object v1, v2; |
| 1124 | EMACS_INT n; |
| 1125 | BEFORE_POTENTIAL_GC (); |
| 1126 | v1 = POP; |
| 1127 | v2 = TOP; |
| 1128 | CHECK_NUMBER (v2); |
| 1129 | n = XINT (v2); |
| 1130 | immediate_quit = 1; |
| 1131 | while (--n >= 0 && CONSP (v1)) |
| 1132 | v1 = XCDR (v1); |
| 1133 | immediate_quit = 0; |
| 1134 | TOP = CAR (v1); |
| 1135 | AFTER_POTENTIAL_GC (); |
| 1136 | NEXT; |
| 1137 | } |
| 1138 | |
| 1139 | CASE (Bsymbolp): |
| 1140 | TOP = SYMBOLP (TOP) ? Qt : Qnil; |
| 1141 | NEXT; |
| 1142 | |
| 1143 | CASE (Bconsp): |
| 1144 | TOP = CONSP (TOP) ? Qt : Qnil; |
| 1145 | NEXT; |
| 1146 | |
| 1147 | CASE (Bstringp): |
| 1148 | TOP = STRINGP (TOP) ? Qt : Qnil; |
| 1149 | NEXT; |
| 1150 | |
| 1151 | CASE (Blistp): |
| 1152 | TOP = CONSP (TOP) || NILP (TOP) ? Qt : Qnil; |
| 1153 | NEXT; |
| 1154 | |
| 1155 | CASE (Bnot): |
| 1156 | TOP = NILP (TOP) ? Qt : Qnil; |
| 1157 | NEXT; |
| 1158 | |
| 1159 | CASE (Bcons): |
| 1160 | { |
| 1161 | Lisp_Object v1; |
| 1162 | v1 = POP; |
| 1163 | TOP = Fcons (TOP, v1); |
| 1164 | NEXT; |
| 1165 | } |
| 1166 | |
| 1167 | CASE (Blist1): |
| 1168 | TOP = Fcons (TOP, Qnil); |
| 1169 | NEXT; |
| 1170 | |
| 1171 | CASE (Blist2): |
| 1172 | { |
| 1173 | Lisp_Object v1; |
| 1174 | v1 = POP; |
| 1175 | TOP = Fcons (TOP, Fcons (v1, Qnil)); |
| 1176 | NEXT; |
| 1177 | } |
| 1178 | |
| 1179 | CASE (Blist3): |
| 1180 | DISCARD (2); |
| 1181 | TOP = Flist (3, &TOP); |
| 1182 | NEXT; |
| 1183 | |
| 1184 | CASE (Blist4): |
| 1185 | DISCARD (3); |
| 1186 | TOP = Flist (4, &TOP); |
| 1187 | NEXT; |
| 1188 | |
| 1189 | CASE (BlistN): |
| 1190 | op = FETCH; |
| 1191 | DISCARD (op - 1); |
| 1192 | TOP = Flist (op, &TOP); |
| 1193 | NEXT; |
| 1194 | |
| 1195 | CASE (Blength): |
| 1196 | BEFORE_POTENTIAL_GC (); |
| 1197 | TOP = Flength (TOP); |
| 1198 | AFTER_POTENTIAL_GC (); |
| 1199 | NEXT; |
| 1200 | |
| 1201 | CASE (Baref): |
| 1202 | { |
| 1203 | Lisp_Object v1; |
| 1204 | BEFORE_POTENTIAL_GC (); |
| 1205 | v1 = POP; |
| 1206 | TOP = Faref (TOP, v1); |
| 1207 | AFTER_POTENTIAL_GC (); |
| 1208 | NEXT; |
| 1209 | } |
| 1210 | |
| 1211 | CASE (Baset): |
| 1212 | { |
| 1213 | Lisp_Object v1, v2; |
| 1214 | BEFORE_POTENTIAL_GC (); |
| 1215 | v2 = POP; v1 = POP; |
| 1216 | TOP = Faset (TOP, v1, v2); |
| 1217 | AFTER_POTENTIAL_GC (); |
| 1218 | NEXT; |
| 1219 | } |
| 1220 | |
| 1221 | CASE (Bsymbol_value): |
| 1222 | BEFORE_POTENTIAL_GC (); |
| 1223 | TOP = Fsymbol_value (TOP); |
| 1224 | AFTER_POTENTIAL_GC (); |
| 1225 | NEXT; |
| 1226 | |
| 1227 | CASE (Bsymbol_function): |
| 1228 | BEFORE_POTENTIAL_GC (); |
| 1229 | TOP = Fsymbol_function (TOP); |
| 1230 | AFTER_POTENTIAL_GC (); |
| 1231 | NEXT; |
| 1232 | |
| 1233 | CASE (Bset): |
| 1234 | { |
| 1235 | Lisp_Object v1; |
| 1236 | BEFORE_POTENTIAL_GC (); |
| 1237 | v1 = POP; |
| 1238 | TOP = Fset (TOP, v1); |
| 1239 | AFTER_POTENTIAL_GC (); |
| 1240 | NEXT; |
| 1241 | } |
| 1242 | |
| 1243 | CASE (Bfset): |
| 1244 | { |
| 1245 | Lisp_Object v1; |
| 1246 | BEFORE_POTENTIAL_GC (); |
| 1247 | v1 = POP; |
| 1248 | TOP = Ffset (TOP, v1); |
| 1249 | AFTER_POTENTIAL_GC (); |
| 1250 | NEXT; |
| 1251 | } |
| 1252 | |
| 1253 | CASE (Bget): |
| 1254 | { |
| 1255 | Lisp_Object v1; |
| 1256 | BEFORE_POTENTIAL_GC (); |
| 1257 | v1 = POP; |
| 1258 | TOP = Fget (TOP, v1); |
| 1259 | AFTER_POTENTIAL_GC (); |
| 1260 | NEXT; |
| 1261 | } |
| 1262 | |
| 1263 | CASE (Bsubstring): |
| 1264 | { |
| 1265 | Lisp_Object v1, v2; |
| 1266 | BEFORE_POTENTIAL_GC (); |
| 1267 | v2 = POP; v1 = POP; |
| 1268 | TOP = Fsubstring (TOP, v1, v2); |
| 1269 | AFTER_POTENTIAL_GC (); |
| 1270 | NEXT; |
| 1271 | } |
| 1272 | |
| 1273 | CASE (Bconcat2): |
| 1274 | BEFORE_POTENTIAL_GC (); |
| 1275 | DISCARD (1); |
| 1276 | TOP = Fconcat (2, &TOP); |
| 1277 | AFTER_POTENTIAL_GC (); |
| 1278 | NEXT; |
| 1279 | |
| 1280 | CASE (Bconcat3): |
| 1281 | BEFORE_POTENTIAL_GC (); |
| 1282 | DISCARD (2); |
| 1283 | TOP = Fconcat (3, &TOP); |
| 1284 | AFTER_POTENTIAL_GC (); |
| 1285 | NEXT; |
| 1286 | |
| 1287 | CASE (Bconcat4): |
| 1288 | BEFORE_POTENTIAL_GC (); |
| 1289 | DISCARD (3); |
| 1290 | TOP = Fconcat (4, &TOP); |
| 1291 | AFTER_POTENTIAL_GC (); |
| 1292 | NEXT; |
| 1293 | |
| 1294 | CASE (BconcatN): |
| 1295 | op = FETCH; |
| 1296 | BEFORE_POTENTIAL_GC (); |
| 1297 | DISCARD (op - 1); |
| 1298 | TOP = Fconcat (op, &TOP); |
| 1299 | AFTER_POTENTIAL_GC (); |
| 1300 | NEXT; |
| 1301 | |
| 1302 | CASE (Bsub1): |
| 1303 | { |
| 1304 | Lisp_Object v1; |
| 1305 | v1 = TOP; |
| 1306 | if (INTEGERP (v1)) |
| 1307 | { |
| 1308 | XSETINT (v1, XINT (v1) - 1); |
| 1309 | TOP = v1; |
| 1310 | } |
| 1311 | else |
| 1312 | { |
| 1313 | BEFORE_POTENTIAL_GC (); |
| 1314 | TOP = Fsub1 (v1); |
| 1315 | AFTER_POTENTIAL_GC (); |
| 1316 | } |
| 1317 | NEXT; |
| 1318 | } |
| 1319 | |
| 1320 | CASE (Badd1): |
| 1321 | { |
| 1322 | Lisp_Object v1; |
| 1323 | v1 = TOP; |
| 1324 | if (INTEGERP (v1)) |
| 1325 | { |
| 1326 | XSETINT (v1, XINT (v1) + 1); |
| 1327 | TOP = v1; |
| 1328 | } |
| 1329 | else |
| 1330 | { |
| 1331 | BEFORE_POTENTIAL_GC (); |
| 1332 | TOP = Fadd1 (v1); |
| 1333 | AFTER_POTENTIAL_GC (); |
| 1334 | } |
| 1335 | NEXT; |
| 1336 | } |
| 1337 | |
| 1338 | CASE (Beqlsign): |
| 1339 | { |
| 1340 | Lisp_Object v1, v2; |
| 1341 | BEFORE_POTENTIAL_GC (); |
| 1342 | v2 = POP; v1 = TOP; |
| 1343 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (v1); |
| 1344 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (v2); |
| 1345 | AFTER_POTENTIAL_GC (); |
| 1346 | if (FLOATP (v1) || FLOATP (v2)) |
| 1347 | { |
| 1348 | double f1, f2; |
| 1349 | |
| 1350 | f1 = (FLOATP (v1) ? XFLOAT_DATA (v1) : XINT (v1)); |
| 1351 | f2 = (FLOATP (v2) ? XFLOAT_DATA (v2) : XINT (v2)); |
| 1352 | TOP = (f1 == f2 ? Qt : Qnil); |
| 1353 | } |
| 1354 | else |
| 1355 | TOP = (XINT (v1) == XINT (v2) ? Qt : Qnil); |
| 1356 | NEXT; |
| 1357 | } |
| 1358 | |
| 1359 | CASE (Bgtr): |
| 1360 | { |
| 1361 | Lisp_Object v1; |
| 1362 | BEFORE_POTENTIAL_GC (); |
| 1363 | v1 = POP; |
| 1364 | TOP = Fgtr (TOP, v1); |
| 1365 | AFTER_POTENTIAL_GC (); |
| 1366 | NEXT; |
| 1367 | } |
| 1368 | |
| 1369 | CASE (Blss): |
| 1370 | { |
| 1371 | Lisp_Object v1; |
| 1372 | BEFORE_POTENTIAL_GC (); |
| 1373 | v1 = POP; |
| 1374 | TOP = Flss (TOP, v1); |
| 1375 | AFTER_POTENTIAL_GC (); |
| 1376 | NEXT; |
| 1377 | } |
| 1378 | |
| 1379 | CASE (Bleq): |
| 1380 | { |
| 1381 | Lisp_Object v1; |
| 1382 | BEFORE_POTENTIAL_GC (); |
| 1383 | v1 = POP; |
| 1384 | TOP = Fleq (TOP, v1); |
| 1385 | AFTER_POTENTIAL_GC (); |
| 1386 | NEXT; |
| 1387 | } |
| 1388 | |
| 1389 | CASE (Bgeq): |
| 1390 | { |
| 1391 | Lisp_Object v1; |
| 1392 | BEFORE_POTENTIAL_GC (); |
| 1393 | v1 = POP; |
| 1394 | TOP = Fgeq (TOP, v1); |
| 1395 | AFTER_POTENTIAL_GC (); |
| 1396 | NEXT; |
| 1397 | } |
| 1398 | |
| 1399 | CASE (Bdiff): |
| 1400 | BEFORE_POTENTIAL_GC (); |
| 1401 | DISCARD (1); |
| 1402 | TOP = Fminus (2, &TOP); |
| 1403 | AFTER_POTENTIAL_GC (); |
| 1404 | NEXT; |
| 1405 | |
| 1406 | CASE (Bnegate): |
| 1407 | { |
| 1408 | Lisp_Object v1; |
| 1409 | v1 = TOP; |
| 1410 | if (INTEGERP (v1)) |
| 1411 | { |
| 1412 | XSETINT (v1, - XINT (v1)); |
| 1413 | TOP = v1; |
| 1414 | } |
| 1415 | else |
| 1416 | { |
| 1417 | BEFORE_POTENTIAL_GC (); |
| 1418 | TOP = Fminus (1, &TOP); |
| 1419 | AFTER_POTENTIAL_GC (); |
| 1420 | } |
| 1421 | NEXT; |
| 1422 | } |
| 1423 | |
| 1424 | CASE (Bplus): |
| 1425 | BEFORE_POTENTIAL_GC (); |
| 1426 | DISCARD (1); |
| 1427 | TOP = Fplus (2, &TOP); |
| 1428 | AFTER_POTENTIAL_GC (); |
| 1429 | NEXT; |
| 1430 | |
| 1431 | CASE (Bmax): |
| 1432 | BEFORE_POTENTIAL_GC (); |
| 1433 | DISCARD (1); |
| 1434 | TOP = Fmax (2, &TOP); |
| 1435 | AFTER_POTENTIAL_GC (); |
| 1436 | NEXT; |
| 1437 | |
| 1438 | CASE (Bmin): |
| 1439 | BEFORE_POTENTIAL_GC (); |
| 1440 | DISCARD (1); |
| 1441 | TOP = Fmin (2, &TOP); |
| 1442 | AFTER_POTENTIAL_GC (); |
| 1443 | NEXT; |
| 1444 | |
| 1445 | CASE (Bmult): |
| 1446 | BEFORE_POTENTIAL_GC (); |
| 1447 | DISCARD (1); |
| 1448 | TOP = Ftimes (2, &TOP); |
| 1449 | AFTER_POTENTIAL_GC (); |
| 1450 | NEXT; |
| 1451 | |
| 1452 | CASE (Bquo): |
| 1453 | BEFORE_POTENTIAL_GC (); |
| 1454 | DISCARD (1); |
| 1455 | TOP = Fquo (2, &TOP); |
| 1456 | AFTER_POTENTIAL_GC (); |
| 1457 | NEXT; |
| 1458 | |
| 1459 | CASE (Brem): |
| 1460 | { |
| 1461 | Lisp_Object v1; |
| 1462 | BEFORE_POTENTIAL_GC (); |
| 1463 | v1 = POP; |
| 1464 | TOP = Frem (TOP, v1); |
| 1465 | AFTER_POTENTIAL_GC (); |
| 1466 | NEXT; |
| 1467 | } |
| 1468 | |
| 1469 | CASE (Bpoint): |
| 1470 | { |
| 1471 | Lisp_Object v1; |
| 1472 | XSETFASTINT (v1, PT); |
| 1473 | PUSH (v1); |
| 1474 | NEXT; |
| 1475 | } |
| 1476 | |
| 1477 | CASE (Bgoto_char): |
| 1478 | BEFORE_POTENTIAL_GC (); |
| 1479 | TOP = Fgoto_char (TOP); |
| 1480 | AFTER_POTENTIAL_GC (); |
| 1481 | NEXT; |
| 1482 | |
| 1483 | CASE (Binsert): |
| 1484 | BEFORE_POTENTIAL_GC (); |
| 1485 | TOP = Finsert (1, &TOP); |
| 1486 | AFTER_POTENTIAL_GC (); |
| 1487 | NEXT; |
| 1488 | |
| 1489 | CASE (BinsertN): |
| 1490 | op = FETCH; |
| 1491 | BEFORE_POTENTIAL_GC (); |
| 1492 | DISCARD (op - 1); |
| 1493 | TOP = Finsert (op, &TOP); |
| 1494 | AFTER_POTENTIAL_GC (); |
| 1495 | NEXT; |
| 1496 | |
| 1497 | CASE (Bpoint_max): |
| 1498 | { |
| 1499 | Lisp_Object v1; |
| 1500 | XSETFASTINT (v1, ZV); |
| 1501 | PUSH (v1); |
| 1502 | NEXT; |
| 1503 | } |
| 1504 | |
| 1505 | CASE (Bpoint_min): |
| 1506 | { |
| 1507 | Lisp_Object v1; |
| 1508 | XSETFASTINT (v1, BEGV); |
| 1509 | PUSH (v1); |
| 1510 | NEXT; |
| 1511 | } |
| 1512 | |
| 1513 | CASE (Bchar_after): |
| 1514 | BEFORE_POTENTIAL_GC (); |
| 1515 | TOP = Fchar_after (TOP); |
| 1516 | AFTER_POTENTIAL_GC (); |
| 1517 | NEXT; |
| 1518 | |
| 1519 | CASE (Bfollowing_char): |
| 1520 | { |
| 1521 | Lisp_Object v1; |
| 1522 | BEFORE_POTENTIAL_GC (); |
| 1523 | v1 = Ffollowing_char (); |
| 1524 | AFTER_POTENTIAL_GC (); |
| 1525 | PUSH (v1); |
| 1526 | NEXT; |
| 1527 | } |
| 1528 | |
| 1529 | CASE (Bpreceding_char): |
| 1530 | { |
| 1531 | Lisp_Object v1; |
| 1532 | BEFORE_POTENTIAL_GC (); |
| 1533 | v1 = Fprevious_char (); |
| 1534 | AFTER_POTENTIAL_GC (); |
| 1535 | PUSH (v1); |
| 1536 | NEXT; |
| 1537 | } |
| 1538 | |
| 1539 | CASE (Bcurrent_column): |
| 1540 | { |
| 1541 | Lisp_Object v1; |
| 1542 | BEFORE_POTENTIAL_GC (); |
| 1543 | XSETFASTINT (v1, current_column ()); |
| 1544 | AFTER_POTENTIAL_GC (); |
| 1545 | PUSH (v1); |
| 1546 | NEXT; |
| 1547 | } |
| 1548 | |
| 1549 | CASE (Bindent_to): |
| 1550 | BEFORE_POTENTIAL_GC (); |
| 1551 | TOP = Findent_to (TOP, Qnil); |
| 1552 | AFTER_POTENTIAL_GC (); |
| 1553 | NEXT; |
| 1554 | |
| 1555 | CASE (Beolp): |
| 1556 | PUSH (Feolp ()); |
| 1557 | NEXT; |
| 1558 | |
| 1559 | CASE (Beobp): |
| 1560 | PUSH (Feobp ()); |
| 1561 | NEXT; |
| 1562 | |
| 1563 | CASE (Bbolp): |
| 1564 | PUSH (Fbolp ()); |
| 1565 | NEXT; |
| 1566 | |
| 1567 | CASE (Bbobp): |
| 1568 | PUSH (Fbobp ()); |
| 1569 | NEXT; |
| 1570 | |
| 1571 | CASE (Bcurrent_buffer): |
| 1572 | PUSH (Fcurrent_buffer ()); |
| 1573 | NEXT; |
| 1574 | |
| 1575 | CASE (Bset_buffer): |
| 1576 | BEFORE_POTENTIAL_GC (); |
| 1577 | TOP = Fset_buffer (TOP); |
| 1578 | AFTER_POTENTIAL_GC (); |
| 1579 | NEXT; |
| 1580 | |
| 1581 | CASE (Binteractive_p): /* Obsolete since 24.1. */ |
| 1582 | BEFORE_POTENTIAL_GC (); |
| 1583 | PUSH (call0 (intern ("interactive-p"))); |
| 1584 | AFTER_POTENTIAL_GC (); |
| 1585 | NEXT; |
| 1586 | |
| 1587 | CASE (Bforward_char): |
| 1588 | BEFORE_POTENTIAL_GC (); |
| 1589 | TOP = Fforward_char (TOP); |
| 1590 | AFTER_POTENTIAL_GC (); |
| 1591 | NEXT; |
| 1592 | |
| 1593 | CASE (Bforward_word): |
| 1594 | BEFORE_POTENTIAL_GC (); |
| 1595 | TOP = Fforward_word (TOP); |
| 1596 | AFTER_POTENTIAL_GC (); |
| 1597 | NEXT; |
| 1598 | |
| 1599 | CASE (Bskip_chars_forward): |
| 1600 | { |
| 1601 | Lisp_Object v1; |
| 1602 | BEFORE_POTENTIAL_GC (); |
| 1603 | v1 = POP; |
| 1604 | TOP = Fskip_chars_forward (TOP, v1); |
| 1605 | AFTER_POTENTIAL_GC (); |
| 1606 | NEXT; |
| 1607 | } |
| 1608 | |
| 1609 | CASE (Bskip_chars_backward): |
| 1610 | { |
| 1611 | Lisp_Object v1; |
| 1612 | BEFORE_POTENTIAL_GC (); |
| 1613 | v1 = POP; |
| 1614 | TOP = Fskip_chars_backward (TOP, v1); |
| 1615 | AFTER_POTENTIAL_GC (); |
| 1616 | NEXT; |
| 1617 | } |
| 1618 | |
| 1619 | CASE (Bforward_line): |
| 1620 | BEFORE_POTENTIAL_GC (); |
| 1621 | TOP = Fforward_line (TOP); |
| 1622 | AFTER_POTENTIAL_GC (); |
| 1623 | NEXT; |
| 1624 | |
| 1625 | CASE (Bchar_syntax): |
| 1626 | { |
| 1627 | int c; |
| 1628 | |
| 1629 | BEFORE_POTENTIAL_GC (); |
| 1630 | CHECK_CHARACTER (TOP); |
| 1631 | AFTER_POTENTIAL_GC (); |
| 1632 | c = XFASTINT (TOP); |
| 1633 | if (NILP (BVAR (current_buffer, enable_multibyte_characters))) |
| 1634 | MAKE_CHAR_MULTIBYTE (c); |
| 1635 | XSETFASTINT (TOP, syntax_code_spec[(int) SYNTAX (c)]); |
| 1636 | } |
| 1637 | NEXT; |
| 1638 | |
| 1639 | CASE (Bbuffer_substring): |
| 1640 | { |
| 1641 | Lisp_Object v1; |
| 1642 | BEFORE_POTENTIAL_GC (); |
| 1643 | v1 = POP; |
| 1644 | TOP = Fbuffer_substring (TOP, v1); |
| 1645 | AFTER_POTENTIAL_GC (); |
| 1646 | NEXT; |
| 1647 | } |
| 1648 | |
| 1649 | CASE (Bdelete_region): |
| 1650 | { |
| 1651 | Lisp_Object v1; |
| 1652 | BEFORE_POTENTIAL_GC (); |
| 1653 | v1 = POP; |
| 1654 | TOP = Fdelete_region (TOP, v1); |
| 1655 | AFTER_POTENTIAL_GC (); |
| 1656 | NEXT; |
| 1657 | } |
| 1658 | |
| 1659 | CASE (Bnarrow_to_region): |
| 1660 | { |
| 1661 | Lisp_Object v1; |
| 1662 | BEFORE_POTENTIAL_GC (); |
| 1663 | v1 = POP; |
| 1664 | TOP = Fnarrow_to_region (TOP, v1); |
| 1665 | AFTER_POTENTIAL_GC (); |
| 1666 | NEXT; |
| 1667 | } |
| 1668 | |
| 1669 | CASE (Bwiden): |
| 1670 | BEFORE_POTENTIAL_GC (); |
| 1671 | PUSH (Fwiden ()); |
| 1672 | AFTER_POTENTIAL_GC (); |
| 1673 | NEXT; |
| 1674 | |
| 1675 | CASE (Bend_of_line): |
| 1676 | BEFORE_POTENTIAL_GC (); |
| 1677 | TOP = Fend_of_line (TOP); |
| 1678 | AFTER_POTENTIAL_GC (); |
| 1679 | NEXT; |
| 1680 | |
| 1681 | CASE (Bset_marker): |
| 1682 | { |
| 1683 | Lisp_Object v1, v2; |
| 1684 | BEFORE_POTENTIAL_GC (); |
| 1685 | v1 = POP; |
| 1686 | v2 = POP; |
| 1687 | TOP = Fset_marker (TOP, v2, v1); |
| 1688 | AFTER_POTENTIAL_GC (); |
| 1689 | NEXT; |
| 1690 | } |
| 1691 | |
| 1692 | CASE (Bmatch_beginning): |
| 1693 | BEFORE_POTENTIAL_GC (); |
| 1694 | TOP = Fmatch_beginning (TOP); |
| 1695 | AFTER_POTENTIAL_GC (); |
| 1696 | NEXT; |
| 1697 | |
| 1698 | CASE (Bmatch_end): |
| 1699 | BEFORE_POTENTIAL_GC (); |
| 1700 | TOP = Fmatch_end (TOP); |
| 1701 | AFTER_POTENTIAL_GC (); |
| 1702 | NEXT; |
| 1703 | |
| 1704 | CASE (Bupcase): |
| 1705 | BEFORE_POTENTIAL_GC (); |
| 1706 | TOP = Fupcase (TOP); |
| 1707 | AFTER_POTENTIAL_GC (); |
| 1708 | NEXT; |
| 1709 | |
| 1710 | CASE (Bdowncase): |
| 1711 | BEFORE_POTENTIAL_GC (); |
| 1712 | TOP = Fdowncase (TOP); |
| 1713 | AFTER_POTENTIAL_GC (); |
| 1714 | NEXT; |
| 1715 | |
| 1716 | CASE (Bstringeqlsign): |
| 1717 | { |
| 1718 | Lisp_Object v1; |
| 1719 | BEFORE_POTENTIAL_GC (); |
| 1720 | v1 = POP; |
| 1721 | TOP = Fstring_equal (TOP, v1); |
| 1722 | AFTER_POTENTIAL_GC (); |
| 1723 | NEXT; |
| 1724 | } |
| 1725 | |
| 1726 | CASE (Bstringlss): |
| 1727 | { |
| 1728 | Lisp_Object v1; |
| 1729 | BEFORE_POTENTIAL_GC (); |
| 1730 | v1 = POP; |
| 1731 | TOP = Fstring_lessp (TOP, v1); |
| 1732 | AFTER_POTENTIAL_GC (); |
| 1733 | NEXT; |
| 1734 | } |
| 1735 | |
| 1736 | CASE (Bequal): |
| 1737 | { |
| 1738 | Lisp_Object v1; |
| 1739 | v1 = POP; |
| 1740 | TOP = Fequal (TOP, v1); |
| 1741 | NEXT; |
| 1742 | } |
| 1743 | |
| 1744 | CASE (Bnthcdr): |
| 1745 | { |
| 1746 | Lisp_Object v1; |
| 1747 | BEFORE_POTENTIAL_GC (); |
| 1748 | v1 = POP; |
| 1749 | TOP = Fnthcdr (TOP, v1); |
| 1750 | AFTER_POTENTIAL_GC (); |
| 1751 | NEXT; |
| 1752 | } |
| 1753 | |
| 1754 | CASE (Belt): |
| 1755 | { |
| 1756 | Lisp_Object v1, v2; |
| 1757 | if (CONSP (TOP)) |
| 1758 | { |
| 1759 | /* Exchange args and then do nth. */ |
| 1760 | EMACS_INT n; |
| 1761 | BEFORE_POTENTIAL_GC (); |
| 1762 | v2 = POP; |
| 1763 | v1 = TOP; |
| 1764 | CHECK_NUMBER (v2); |
| 1765 | AFTER_POTENTIAL_GC (); |
| 1766 | n = XINT (v2); |
| 1767 | immediate_quit = 1; |
| 1768 | while (--n >= 0 && CONSP (v1)) |
| 1769 | v1 = XCDR (v1); |
| 1770 | immediate_quit = 0; |
| 1771 | TOP = CAR (v1); |
| 1772 | } |
| 1773 | else |
| 1774 | { |
| 1775 | BEFORE_POTENTIAL_GC (); |
| 1776 | v1 = POP; |
| 1777 | TOP = Felt (TOP, v1); |
| 1778 | AFTER_POTENTIAL_GC (); |
| 1779 | } |
| 1780 | NEXT; |
| 1781 | } |
| 1782 | |
| 1783 | CASE (Bmember): |
| 1784 | { |
| 1785 | Lisp_Object v1; |
| 1786 | BEFORE_POTENTIAL_GC (); |
| 1787 | v1 = POP; |
| 1788 | TOP = Fmember (TOP, v1); |
| 1789 | AFTER_POTENTIAL_GC (); |
| 1790 | NEXT; |
| 1791 | } |
| 1792 | |
| 1793 | CASE (Bassq): |
| 1794 | { |
| 1795 | Lisp_Object v1; |
| 1796 | BEFORE_POTENTIAL_GC (); |
| 1797 | v1 = POP; |
| 1798 | TOP = Fassq (TOP, v1); |
| 1799 | AFTER_POTENTIAL_GC (); |
| 1800 | NEXT; |
| 1801 | } |
| 1802 | |
| 1803 | CASE (Bnreverse): |
| 1804 | BEFORE_POTENTIAL_GC (); |
| 1805 | TOP = Fnreverse (TOP); |
| 1806 | AFTER_POTENTIAL_GC (); |
| 1807 | NEXT; |
| 1808 | |
| 1809 | CASE (Bsetcar): |
| 1810 | { |
| 1811 | Lisp_Object v1; |
| 1812 | BEFORE_POTENTIAL_GC (); |
| 1813 | v1 = POP; |
| 1814 | TOP = Fsetcar (TOP, v1); |
| 1815 | AFTER_POTENTIAL_GC (); |
| 1816 | NEXT; |
| 1817 | } |
| 1818 | |
| 1819 | CASE (Bsetcdr): |
| 1820 | { |
| 1821 | Lisp_Object v1; |
| 1822 | BEFORE_POTENTIAL_GC (); |
| 1823 | v1 = POP; |
| 1824 | TOP = Fsetcdr (TOP, v1); |
| 1825 | AFTER_POTENTIAL_GC (); |
| 1826 | NEXT; |
| 1827 | } |
| 1828 | |
| 1829 | CASE (Bcar_safe): |
| 1830 | { |
| 1831 | Lisp_Object v1; |
| 1832 | v1 = TOP; |
| 1833 | TOP = CAR_SAFE (v1); |
| 1834 | NEXT; |
| 1835 | } |
| 1836 | |
| 1837 | CASE (Bcdr_safe): |
| 1838 | { |
| 1839 | Lisp_Object v1; |
| 1840 | v1 = TOP; |
| 1841 | TOP = CDR_SAFE (v1); |
| 1842 | NEXT; |
| 1843 | } |
| 1844 | |
| 1845 | CASE (Bnconc): |
| 1846 | BEFORE_POTENTIAL_GC (); |
| 1847 | DISCARD (1); |
| 1848 | TOP = Fnconc (2, &TOP); |
| 1849 | AFTER_POTENTIAL_GC (); |
| 1850 | NEXT; |
| 1851 | |
| 1852 | CASE (Bnumberp): |
| 1853 | TOP = (NUMBERP (TOP) ? Qt : Qnil); |
| 1854 | NEXT; |
| 1855 | |
| 1856 | CASE (Bintegerp): |
| 1857 | TOP = INTEGERP (TOP) ? Qt : Qnil; |
| 1858 | NEXT; |
| 1859 | |
| 1860 | #ifdef BYTE_CODE_SAFE |
| 1861 | /* These are intentionally written using 'case' syntax, |
| 1862 | because they are incompatible with the threaded |
| 1863 | interpreter. */ |
| 1864 | |
| 1865 | case Bset_mark: |
| 1866 | BEFORE_POTENTIAL_GC (); |
| 1867 | error ("set-mark is an obsolete bytecode"); |
| 1868 | AFTER_POTENTIAL_GC (); |
| 1869 | break; |
| 1870 | case Bscan_buffer: |
| 1871 | BEFORE_POTENTIAL_GC (); |
| 1872 | error ("scan-buffer is an obsolete bytecode"); |
| 1873 | AFTER_POTENTIAL_GC (); |
| 1874 | break; |
| 1875 | #endif |
| 1876 | |
| 1877 | CASE_ABORT: |
| 1878 | /* Actually this is Bstack_ref with offset 0, but we use Bdup |
| 1879 | for that instead. */ |
| 1880 | /* CASE (Bstack_ref): */ |
| 1881 | error ("Invalid byte opcode"); |
| 1882 | |
| 1883 | /* Handy byte-codes for lexical binding. */ |
| 1884 | CASE (Bstack_ref1): |
| 1885 | CASE (Bstack_ref2): |
| 1886 | CASE (Bstack_ref3): |
| 1887 | CASE (Bstack_ref4): |
| 1888 | CASE (Bstack_ref5): |
| 1889 | { |
| 1890 | Lisp_Object *ptr = top - (op - Bstack_ref); |
| 1891 | PUSH (*ptr); |
| 1892 | NEXT; |
| 1893 | } |
| 1894 | CASE (Bstack_ref6): |
| 1895 | { |
| 1896 | Lisp_Object *ptr = top - (FETCH); |
| 1897 | PUSH (*ptr); |
| 1898 | NEXT; |
| 1899 | } |
| 1900 | CASE (Bstack_ref7): |
| 1901 | { |
| 1902 | Lisp_Object *ptr = top - (FETCH2); |
| 1903 | PUSH (*ptr); |
| 1904 | NEXT; |
| 1905 | } |
| 1906 | CASE (Bstack_set): |
| 1907 | /* stack-set-0 = discard; stack-set-1 = discard-1-preserve-tos. */ |
| 1908 | { |
| 1909 | Lisp_Object *ptr = top - (FETCH); |
| 1910 | *ptr = POP; |
| 1911 | NEXT; |
| 1912 | } |
| 1913 | CASE (Bstack_set2): |
| 1914 | { |
| 1915 | Lisp_Object *ptr = top - (FETCH2); |
| 1916 | *ptr = POP; |
| 1917 | NEXT; |
| 1918 | } |
| 1919 | CASE (BdiscardN): |
| 1920 | op = FETCH; |
| 1921 | if (op & 0x80) |
| 1922 | { |
| 1923 | op &= 0x7F; |
| 1924 | top[-op] = TOP; |
| 1925 | } |
| 1926 | DISCARD (op); |
| 1927 | NEXT; |
| 1928 | |
| 1929 | CASE_DEFAULT |
| 1930 | CASE (Bconstant): |
| 1931 | #ifdef BYTE_CODE_SAFE |
| 1932 | if (op < Bconstant) |
| 1933 | { |
| 1934 | emacs_abort (); |
| 1935 | } |
| 1936 | if ((op -= Bconstant) >= const_length) |
| 1937 | { |
| 1938 | emacs_abort (); |
| 1939 | } |
| 1940 | PUSH (vectorp[op]); |
| 1941 | #else |
| 1942 | PUSH (vectorp[op - Bconstant]); |
| 1943 | #endif |
| 1944 | NEXT; |
| 1945 | } |
| 1946 | } |
| 1947 | |
| 1948 | exit: |
| 1949 | |
| 1950 | byte_stack_list = byte_stack_list->next; |
| 1951 | |
| 1952 | /* Binds and unbinds are supposed to be compiled balanced. */ |
| 1953 | if (SPECPDL_INDEX () != count) |
| 1954 | #ifdef BYTE_CODE_SAFE |
| 1955 | error ("binding stack not balanced (serious byte compiler bug)"); |
| 1956 | #else |
| 1957 | emacs_abort (); |
| 1958 | #endif |
| 1959 | |
| 1960 | return result; |
| 1961 | } |
| 1962 | |
| 1963 | void |
| 1964 | syms_of_bytecode (void) |
| 1965 | { |
| 1966 | DEFSYM (Qbytecode, "byte-code"); |
| 1967 | |
| 1968 | defsubr (&Sbyte_code); |
| 1969 | |
| 1970 | #ifdef BYTE_CODE_METER |
| 1971 | |
| 1972 | DEFVAR_LISP ("byte-code-meter", Vbyte_code_meter, |
| 1973 | doc: /* A vector of vectors which holds a histogram of byte-code usage. |
| 1974 | \(aref (aref byte-code-meter 0) CODE) indicates how many times the byte |
| 1975 | opcode CODE has been executed. |
| 1976 | \(aref (aref byte-code-meter CODE1) CODE2), where CODE1 is not 0, |
| 1977 | indicates how many times the byte opcodes CODE1 and CODE2 have been |
| 1978 | executed in succession. */); |
| 1979 | |
| 1980 | DEFVAR_BOOL ("byte-metering-on", byte_metering_on, |
| 1981 | doc: /* If non-nil, keep profiling information on byte code usage. |
| 1982 | The variable byte-code-meter indicates how often each byte opcode is used. |
| 1983 | If a symbol has a property named `byte-code-meter' whose value is an |
| 1984 | integer, it is incremented each time that symbol's function is called. */); |
| 1985 | |
| 1986 | byte_metering_on = 0; |
| 1987 | Vbyte_code_meter = Fmake_vector (make_number (256), make_number (0)); |
| 1988 | DEFSYM (Qbyte_code_meter, "byte-code-meter"); |
| 1989 | { |
| 1990 | int i = 256; |
| 1991 | while (i--) |
| 1992 | ASET (Vbyte_code_meter, i, |
| 1993 | Fmake_vector (make_number (256), make_number (0))); |
| 1994 | } |
| 1995 | #endif |
| 1996 | } |