Stuart McCulloch | f29ef3f | 2008-12-04 07:58:07 +0000 | [diff] [blame] | 1 | package aQute.lib.osgi; |
| 2 | |
| 3 | public class OpCodes { |
| 4 | final static short nop = 0x00; // [No change] performs |
| 5 | // no |
| 6 | // operation |
| 7 | final static short aconst_null = 0x01; // ? null pushes a null |
| 8 | // reference onto the stack |
| 9 | final static short iconst_m1 = 0x02; // ? -1 loads the int |
| 10 | // value -1 |
| 11 | // onto the stack |
| 12 | final static short iconst_0 = 0x03; // ? 0 loads the int |
| 13 | // value 0 |
| 14 | // onto the stack |
| 15 | final static short iconst_1 = 0x04; // ? 1 loads the int |
| 16 | // value 1 |
| 17 | // onto the stack |
| 18 | final static short iconst_2 = 0x05; // ? 2 loads the int |
| 19 | // value 2 |
| 20 | // onto the stack |
| 21 | final static short iconst_3 = 0x06; // ? 3 loads the int |
| 22 | // value 3 |
| 23 | // onto the stack |
| 24 | final static short iconst_4 = 0x07; // ? 4 loads the int |
| 25 | // value 4 |
| 26 | // onto the stack |
| 27 | final static short iconst_5 = 0x08; // ? 5 loads the int |
| 28 | // value 5 |
| 29 | // onto the stack |
| 30 | final static short lconst_0 = 0x09; // ? 0L pushes the long |
| 31 | // 0 onto |
| 32 | // the stack |
| 33 | final static short bipush = 0x10; // byte ? value pushes a |
| 34 | // byte |
| 35 | // onto the stack as an integer |
| 36 | // value |
| 37 | final static short sipush = 0x11; // byte1, byte2 ? value |
| 38 | // pushes a |
| 39 | // signed integer (byte1 << 8 + |
| 40 | // byte2) onto the stack |
| 41 | final static short ldc = 0x12; // index ? value pushes |
| 42 | // a |
| 43 | // constant #index from a |
| 44 | // constant pool (String, int, |
| 45 | // float or class type) onto the |
| 46 | // stack |
| 47 | final static short ldc_w = 0x13; // indexbyte1, |
| 48 | // indexbyte2 ? |
| 49 | // value pushes a constant |
| 50 | // #index from a constant pool |
| 51 | // (String, int, float or class |
| 52 | // type) onto the stack (wide |
| 53 | // index is constructed as |
| 54 | // indexbyte1 << 8 + indexbyte2) |
| 55 | final static short ldc2_w = 0x14; // indexbyte1, |
| 56 | // indexbyte2 ? |
| 57 | // value pushes a constant |
| 58 | // #index from a constant pool |
| 59 | // (double or long) onto the |
| 60 | // stack (wide index is |
| 61 | // constructed as indexbyte1 << |
| 62 | // 8 + indexbyte2) |
| 63 | final static short iload = 0x15; // index ? value loads |
| 64 | // an int |
| 65 | // value from a variable #index |
| 66 | final static short lload = 0x16; // index ? value load a |
| 67 | // long |
| 68 | // value from a local variable |
| 69 | // #index |
| 70 | final static short fload = 0x17; // index ? value loads a |
| 71 | // float |
| 72 | // value from a local variable |
| 73 | // #index |
| 74 | final static short dload = 0x18; // index ? value loads a |
| 75 | // double |
| 76 | // value from a local variable |
| 77 | // #index |
| 78 | final static short aload = 0x19; // index ? objectref |
| 79 | // loads a |
| 80 | // reference onto the stack from |
| 81 | // a local variable #index |
| 82 | final static short lload_2 = 0x20; // ? value load a long |
| 83 | // value |
| 84 | // from a local variable 2 |
| 85 | final static short lload_3 = 0x21; // ? value load a long |
| 86 | // value |
| 87 | // from a local variable 3 |
| 88 | final static short fload_0 = 0x22; // ? value loads a float |
| 89 | // value |
| 90 | // from local variable 0 |
| 91 | final static short fload_1 = 0x23; // ? value loads a float |
| 92 | // value |
| 93 | // from local variable 1 |
| 94 | final static short fload_2 = 0x24; // ? value loads a float |
| 95 | // value |
| 96 | // from local variable 2 |
| 97 | final static short fload_3 = 0x25; // ? value loads a float |
| 98 | // value |
| 99 | // from local variable 3 |
| 100 | final static short dload_0 = 0x26; // ? value loads a |
| 101 | // double from |
| 102 | // local variable 0 |
| 103 | final static short dload_1 = 0x27; // ? value loads a |
| 104 | // double from |
| 105 | // local variable 1 |
| 106 | final static short dload_2 = 0x28; // ? value loads a |
| 107 | // double from |
| 108 | // local variable 2 |
| 109 | final static short dload_3 = 0x29; // ? value loads a |
| 110 | // double from |
| 111 | // local variable 3 |
| 112 | final static short faload = 0x30; // arrayref, index ? |
| 113 | // value loads |
| 114 | // a float from an array |
| 115 | final static short daload = 0x31; // arrayref, index ? |
| 116 | // value loads |
| 117 | // a double from an array |
| 118 | final static short aaload = 0x32; // arrayref, index ? |
| 119 | // value loads |
| 120 | // onto the stack a reference |
| 121 | // from an array |
| 122 | final static short baload = 0x33; // arrayref, index ? |
| 123 | // value loads |
| 124 | // a byte or Boolean value from |
| 125 | // an array |
| 126 | final static short caload = 0x34; // arrayref, index ? |
| 127 | // value loads |
| 128 | // a char from an array |
| 129 | final static short saload = 0x35; // arrayref, index ? |
| 130 | // value load |
| 131 | // short from array |
| 132 | final static short istore = 0x36; // index value ? store |
| 133 | // int value |
| 134 | // into variable #index |
| 135 | final static short lstore = 0x37; // index value ? store a |
| 136 | // long |
| 137 | // value in a local variable |
| 138 | // #index |
| 139 | final static short fstore = 0x38; // index value ? stores |
| 140 | // a float |
| 141 | // value into a local variable |
| 142 | // #index |
| 143 | final static short dstore = 0x39; // index value ? stores |
| 144 | // a double |
| 145 | // value into a local variable |
| 146 | // #index |
| 147 | final static short lstore_1 = 0x40; // value ? store a long |
| 148 | // value in |
| 149 | // a local variable 1 |
| 150 | final static short lstore_2 = 0x41; // value ? store a long |
| 151 | // value in |
| 152 | // a local variable 2 |
| 153 | final static short lstore_3 = 0x42; // value ? store a long |
| 154 | // value in |
| 155 | // a local variable 3 |
| 156 | final static short fstore_0 = 0x43; // value ? stores a |
| 157 | // float value |
| 158 | // into local variable 0 |
| 159 | final static short fstore_1 = 0x44; // value ? stores a |
| 160 | // float value |
| 161 | // into local variable 1 |
| 162 | final static short fstore_2 = 0x45; // value ? stores a |
| 163 | // float value |
| 164 | // into local variable 2 |
| 165 | final static short fstore_3 = 0x46; // value ? stores a |
| 166 | // float value |
| 167 | // into local variable 3 |
| 168 | final static short dstore_0 = 0x47; // value ? stores a |
| 169 | // double into |
| 170 | // local variable 0 |
| 171 | final static short dstore_1 = 0x48; // value ? stores a |
| 172 | // double into |
| 173 | // local variable 1 |
| 174 | final static short dstore_2 = 0x49; // value ? stores a |
| 175 | // double into |
| 176 | // local variable 2 |
| 177 | final static short lastore = 0x50; // arrayref, index, |
| 178 | // value ? |
| 179 | // store a long to an array |
| 180 | final static short fastore = 0x51; // arreyref, index, |
| 181 | // value ? |
| 182 | // stores a float in an array |
| 183 | final static short dastore = 0x52; // arrayref, index, |
| 184 | // value ? |
| 185 | // stores a double into an array |
| 186 | final static short aastore = 0x53; // arrayref, index, |
| 187 | // value ? |
| 188 | // stores into a reference to an |
| 189 | // array |
| 190 | final static short bastore = 0x54; // arrayref, index, |
| 191 | // value ? |
| 192 | // stores a byte or Boolean |
| 193 | // value into an array |
| 194 | final static short castore = 0x55; // arrayref, index, |
| 195 | // value ? |
| 196 | // stores a char into an array |
| 197 | final static short sastore = 0x56; // arrayref, index, |
| 198 | // value ? |
| 199 | // store short to array |
| 200 | final static short pop = 0x57; // value ? discards the |
| 201 | // top |
| 202 | // value on the stack |
| 203 | final static short pop2 = 0x58; // {value2, value1} ? |
| 204 | // discards |
| 205 | // the top two values on the |
| 206 | // stack (or one value, if it is |
| 207 | // a double or long) |
| 208 | final static short dup = 0x59; // value ? value, value |
| 209 | // duplicates the value on top |
| 210 | // of the stack |
| 211 | final static short iadd = 0x60; // value1, value2 ? |
| 212 | // result adds |
| 213 | // two ints together |
| 214 | final static short ladd = 0x61; // value1, value2 ? |
| 215 | // result add |
| 216 | // two longs |
| 217 | final static short fadd = 0x62; // value1, value2 ? |
| 218 | // result adds |
| 219 | // two floats |
| 220 | final static short dadd = 0x63; // value1, value2 ? |
| 221 | // result adds |
| 222 | // two doubles |
| 223 | final static short isub = 0x64; // value1, value2 ? |
| 224 | // result int |
| 225 | // subtract |
| 226 | final static short lsub = 0x65; // value1, value2 ? |
| 227 | // result |
| 228 | // subtract two longs |
| 229 | final static short fsub = 0x66; // value1, value2 ? |
| 230 | // result |
| 231 | // subtracts two floats |
| 232 | final static short dsub = 0x67; // value1, value2 ? |
| 233 | // result |
| 234 | // subtracts a double from |
| 235 | // another |
| 236 | final static short imul = 0x68; // value1, value2 ? |
| 237 | // result |
| 238 | // multiply two integers |
| 239 | final static short lmul = 0x69; // value1, value2 ? |
| 240 | // result |
| 241 | // multiplies two longs |
| 242 | final static short irem = 0x70; // value1, value2 ? |
| 243 | // result |
| 244 | // logical int remainder |
| 245 | final static short lrem = 0x71; // value1, value2 ? |
| 246 | // result |
| 247 | // remainder of division of two |
| 248 | // longs |
| 249 | final static short frem = 0x72; // value1, value2 ? |
| 250 | // result gets |
| 251 | // the remainder from a division |
| 252 | // between two floats |
| 253 | final static short drem = 0x73; // value1, value2 ? |
| 254 | // result gets |
| 255 | // the remainder from a division |
| 256 | // between two doubles |
| 257 | final static short ineg = 0x74; // value ? result negate |
| 258 | // int |
| 259 | final static short lneg = 0x75; // value ? result |
| 260 | // negates a long |
| 261 | final static short fneg = 0x76; // value ? result |
| 262 | // negates a |
| 263 | // float |
| 264 | final static short dneg = 0x77; // value ? result |
| 265 | // negates a |
| 266 | // double |
| 267 | final static short ishl = 0x78; // value1, value2 ? |
| 268 | // result int |
| 269 | // shift left |
| 270 | final static short lshl = 0x79; // value1, value2 ? |
| 271 | // result |
| 272 | // bitwise shift left of a long |
| 273 | // value1 by value2 positions |
| 274 | final static short ior = 0x80; // value1, value2 ? |
| 275 | // result |
| 276 | // logical int or |
| 277 | final static short lor = 0x81; // value1, value2 ? |
| 278 | // result |
| 279 | // bitwise or of two longs |
| 280 | final static short ixor = 0x82; // value1, value2 ? |
| 281 | // result int |
| 282 | // xor |
| 283 | final static short lxor = 0x83; // value1, value2 ? |
| 284 | // result |
| 285 | // bitwise exclusive or of two |
| 286 | // longs |
| 287 | final static short iinc = 0x84; // index, const [No |
| 288 | // change] |
| 289 | // increment local variable |
| 290 | // #index by signed byte const |
| 291 | final static short i2l = 0x85; // value ? result |
| 292 | // converts an |
| 293 | // int into a long |
| 294 | final static short i2f = 0x86; // value ? result |
| 295 | // converts an |
| 296 | // int into a float |
| 297 | final static short i2d = 0x87; // value ? result |
| 298 | // converts an |
| 299 | // int into a double |
| 300 | final static short l2i = 0x88; // value ? result |
| 301 | // converts a |
| 302 | // long to an int |
| 303 | final static short l2f = 0x89; // value ? result |
| 304 | // converts a |
| 305 | // long to a float |
| 306 | final static short d2f = 0x90; // value ? result |
| 307 | // converts a |
| 308 | // double to a float |
| 309 | final static short i2b = 0x91; // value ? result |
| 310 | // converts an |
| 311 | // int into a byte |
| 312 | final static short i2c = 0x92; // value ? result |
| 313 | // converts an |
| 314 | // int into a character |
| 315 | final static short i2s = 0x93; // value ? result |
| 316 | // converts an |
| 317 | // int into a short |
| 318 | final static short lcmp = 0x94; // value1, value2 ? |
| 319 | // result |
| 320 | // compares two longs values |
| 321 | final static short fcmpl = 0x95; // value1, value2 ? |
| 322 | // result |
| 323 | // compares two floats |
| 324 | final static short fcmpg = 0x96; // value1, value2 ? |
| 325 | // result |
| 326 | // compares two floats |
| 327 | final static short dcmpl = 0x97; // value1, value2 ? |
| 328 | // result |
| 329 | // compares two doubles |
| 330 | final static short dcmpg = 0x98; // value1, value2 ? |
| 331 | // result |
| 332 | // compares two doubles |
| 333 | final static short ifeq = 0x99; // branchbyte1, |
| 334 | // branchbyte2 |
| 335 | // value ? if value is 0, branch |
| 336 | // to instruction at |
| 337 | // branchoffset (signed short |
| 338 | // constructed from unsigned |
| 339 | // bytes branchbyte1 << 8 + |
| 340 | // branchbyte2) |
| 341 | final static short lconst_1 = 0x0a; // ? 1L pushes the long |
| 342 | // 1 onto |
| 343 | // the stack |
| 344 | final static short fconst_0 = 0x0b; // ? 0.0f pushes 0.0f on |
| 345 | // the |
| 346 | // stack |
| 347 | final static short fconst_1 = 0x0c; // ? 1.0f pushes 1.0f on |
| 348 | // the |
| 349 | // stack |
| 350 | final static short fconst_2 = 0x0d; // ? 2.0f pushes 2.0f on |
| 351 | // the |
| 352 | // stack |
| 353 | final static short dconst_0 = 0x0e; // ? 0.0 pushes the |
| 354 | // constant 0.0 |
| 355 | // onto the stack |
| 356 | final static short dconst_1 = 0x0f; // ? 1.0 pushes the |
| 357 | // constant 1.0 |
| 358 | // onto the stack |
| 359 | final static short iload_0 = 0x1a; // ? value loads an int |
| 360 | // value |
| 361 | // from variable 0 |
| 362 | final static short iload_1 = 0x1b; // ? value loads an int |
| 363 | // value |
| 364 | // from variable 1 |
| 365 | final static short iload_2 = 0x1c; // ? value loads an int |
| 366 | // value |
| 367 | // from variable 2 |
| 368 | final static short iload_3 = 0x1d; // ? value loads an int |
| 369 | // value |
| 370 | // from variable 3 |
| 371 | final static short lload_0 = 0x1e; // ? value load a long |
| 372 | // value |
| 373 | // from a local variable 0 |
| 374 | final static short lload_1 = 0x1f; // ? value load a long |
| 375 | // value |
| 376 | // from a local variable 1 |
| 377 | final static short aload_0 = 0x2a; // ? objectref loads a |
| 378 | // reference |
| 379 | // onto the stack from local |
| 380 | // variable 0 |
| 381 | final static short aload_1 = 0x2b; // ? objectref loads a |
| 382 | // reference |
| 383 | // onto the stack from local |
| 384 | // variable 1 |
| 385 | final static short aload_2 = 0x2c; // ? objectref loads a |
| 386 | // reference |
| 387 | // onto the stack from local |
| 388 | // variable 2 |
| 389 | final static short aload_3 = 0x2d; // ? objectref loads a |
| 390 | // reference |
| 391 | // onto the stack from local |
| 392 | // variable 3 |
| 393 | final static short iaload = 0x2e; // arrayref, index ? |
| 394 | // value loads |
| 395 | // an int from an array |
| 396 | final static short laload = 0x2f; // arrayref, index ? |
| 397 | // value load |
| 398 | // a long from an array |
| 399 | final static short astore = 0x3a; // index objectref ? |
| 400 | // stores a |
| 401 | // reference into a local |
| 402 | // variable #index |
| 403 | final static short istore_0 = 0x3b; // value ? store int |
| 404 | // value into |
| 405 | // variable 0 |
| 406 | final static short istore_1 = 0x3c; // value ? store int |
| 407 | // value into |
| 408 | // variable 1 |
| 409 | final static short istore_2 = 0x3d; // value ? store int |
| 410 | // value into |
| 411 | // variable 2 |
| 412 | final static short istore_3 = 0x3e; // value ? store int |
| 413 | // value into |
| 414 | // variable 3 |
| 415 | final static short lstore_0 = 0x3f; // value ? store a long |
| 416 | // value in |
| 417 | // a local variable 0 |
| 418 | final static short dstore_3 = 0x4a; // value ? stores a |
| 419 | // double into |
| 420 | // local variable 3 |
| 421 | final static short astore_0 = 0x4b; // objectref ? stores a |
| 422 | // reference into local variable |
| 423 | // 0 |
| 424 | final static short astore_1 = 0x4c; // objectref ? stores a |
| 425 | // reference into local variable |
| 426 | // 1 |
| 427 | final static short astore_2 = 0x4d; // objectref ? stores a |
| 428 | // reference into local variable |
| 429 | // 2 |
| 430 | final static short astore_3 = 0x4e; // objectref ? stores a |
| 431 | // reference into local variable |
| 432 | // 3 |
| 433 | final static short iastore = 0x4f; // arrayref, index, |
| 434 | // value ? |
| 435 | // stores an int into an array |
| 436 | final static short dup_x1 = 0x5a; // value2, value1 ? |
| 437 | // value1, |
| 438 | // value2, value1 inserts a copy |
| 439 | // of the top value into the |
| 440 | // stack two values from the top |
| 441 | final static short dup_x2 = 0x5b; // value3, value2, |
| 442 | // value1 ? |
| 443 | // value1, value3, value2, |
| 444 | // value1 inserts a copy of the |
| 445 | // top value into the stack two |
| 446 | // (if value2 is double or long |
| 447 | // it takes up the entry of |
| 448 | // value3, too) or three values |
| 449 | // (if value2 is neither double |
| 450 | // nor long) from the top |
| 451 | final static short dup2 = 0x5c; // {value2, value1} ? |
| 452 | // {value2, |
| 453 | // value1}, {value2, value1} |
| 454 | // duplicate top two stack words |
| 455 | // (two values, if value1 is not |
| 456 | // double nor long; a single |
| 457 | // value, if value1 is double or |
| 458 | // long) |
| 459 | final static short dup2_x1 = 0x5d; // value3, {value2, |
| 460 | // value1} ? |
| 461 | // {value2, value1}, value3, |
| 462 | // {value2, value1} duplicate |
| 463 | // two words and insert beneath |
| 464 | // third word (see explanation |
| 465 | // above) |
| 466 | final static short dup2_x2 = 0x5e; // {value4, value3}, |
| 467 | // {value2, |
| 468 | // value1} ? {value2, value1}, |
| 469 | // {value4, value3}, {value2, |
| 470 | // value1} duplicate two words |
| 471 | // and insert beneath fourth |
| 472 | // word |
| 473 | final static short swap = 0x5f; // value2, value1 ? |
| 474 | // value1, |
| 475 | // value2 swaps two top words on |
| 476 | // the stack (note that value1 |
| 477 | // and value2 must not be double |
| 478 | // or long) |
| 479 | final static short fmul = 0x6a; // value1, value2 ? |
| 480 | // result |
| 481 | // multiplies two floats |
| 482 | final static short dmul = 0x6b; // value1, value2 ? |
| 483 | // result |
| 484 | // multiplies two doubles |
| 485 | final static short idiv = 0x6c; // value1, value2 ? |
| 486 | // result |
| 487 | // divides two integers |
| 488 | final static short ldiv = 0x6d; // value1, value2 ? |
| 489 | // result |
| 490 | // divide two longs |
| 491 | final static short fdiv = 0x6e; // value1, value2 ? |
| 492 | // result |
| 493 | // divides two floats |
| 494 | final static short ddiv = 0x6f; // value1, value2 ? |
| 495 | // result |
| 496 | // divides two doubles |
| 497 | final static short ishr = 0x7a; // value1, value2 ? |
| 498 | // result int |
| 499 | // shift right |
| 500 | final static short lshr = 0x7b; // value1, value2 ? |
| 501 | // result |
| 502 | // bitwise shift right of a long |
| 503 | // value1 by value2 positions |
| 504 | final static short iushr = 0x7c; // value1, value2 ? |
| 505 | // result int |
| 506 | // shift right |
| 507 | final static short lushr = 0x7d; // value1, value2 ? |
| 508 | // result |
| 509 | // bitwise shift right of a long |
| 510 | // value1 by value2 positions, |
| 511 | // unsigned |
| 512 | final static short iand = 0x7e; // value1, value2 ? |
| 513 | // result |
| 514 | // performs a logical and on two |
| 515 | // integers |
| 516 | final static short land = 0x7f; // value1, value2 ? |
| 517 | // result |
| 518 | // bitwise and of two longs |
| 519 | final static short l2d = 0x8a; // value ? result |
| 520 | // converts a |
| 521 | // long to a double |
| 522 | final static short f2i = 0x8b; // value ? result |
| 523 | // converts a |
| 524 | // float to an int |
| 525 | final static short f2l = 0x8c; // value ? result |
| 526 | // converts a |
| 527 | // float to a long |
| 528 | final static short f2d = 0x8d; // value ? result |
| 529 | // converts a |
| 530 | // float to a double |
| 531 | final static short d2i = 0x8e; // value ? result |
| 532 | // converts a |
| 533 | // double to an int |
| 534 | final static short d2l = 0x8f; // value ? result |
| 535 | // converts a |
| 536 | // double to a long |
| 537 | final static short ifne = 0x9a; // branchbyte1, |
| 538 | // branchbyte2 |
| 539 | // value ? if value is not 0, |
| 540 | // branch to instruction at |
| 541 | // branchoffset (signed short |
| 542 | // constructed from unsigned |
| 543 | // bytes branchbyte1 << 8 + |
| 544 | // branchbyte2) |
| 545 | final static short iflt = 0x9b; // branchbyte1, |
| 546 | // branchbyte2 |
| 547 | // value ? if value is less than |
| 548 | // 0, branch to instruction at |
| 549 | // branchoffset (signed short |
| 550 | // constructed from unsigned |
| 551 | // bytes branchbyte1 << 8 + |
| 552 | // branchbyte2) |
| 553 | final static short ifge = 0x9c; // branchbyte1, |
| 554 | // branchbyte2 |
| 555 | // value ? if value is greater |
| 556 | // than or equal to 0, branch to |
| 557 | // instruction at branchoffset |
| 558 | // (signed short constructed |
| 559 | // from unsigned bytes |
| 560 | // branchbyte1 << 8 + |
| 561 | // branchbyte2) |
| 562 | final static short ifgt = 0x9d; // branchbyte1, |
| 563 | // branchbyte2 |
| 564 | // value ? if value is greater |
| 565 | // than 0, branch to instruction |
| 566 | // at branchoffset (signed short |
| 567 | // constructed from unsigned |
| 568 | // bytes branchbyte1 << 8 + |
| 569 | // branchbyte2) |
| 570 | final static short ifle = 0x9e; // branchbyte1, |
| 571 | // branchbyte2 |
| 572 | // value ? if value is less than |
| 573 | // or equal to 0, branch to |
| 574 | // instruction at branchoffset |
| 575 | // (signed short constructed |
| 576 | // from unsigned bytes |
| 577 | // branchbyte1 << 8 + |
| 578 | // branchbyte2) |
| 579 | final static short if_icmpeq = 0x9f; // branchbyte1, |
| 580 | // branchbyte2 |
| 581 | // value1, value2 ? if ints are |
| 582 | // equal, branch to instruction |
| 583 | // at branchoffset (signed short |
| 584 | // constructed from unsigned |
| 585 | // bytes branchbyte1 << 8 + |
| 586 | // branchbyte2) |
| 587 | final static short if_icmpne = 0xa0; // branchbyte1, |
| 588 | // branchbyte2 |
| 589 | // value1, value2 ? if ints are |
| 590 | // not equal, branch to |
| 591 | // instruction at branchoffset |
| 592 | // (signed short constructed |
| 593 | // from unsigned bytes |
| 594 | // branchbyte1 << 8 + |
| 595 | // branchbyte2) |
| 596 | final static short if_icmplt = 0xa1; // branchbyte1, |
| 597 | // branchbyte2 |
| 598 | // value1, value2 ? if value1 is |
| 599 | // less than value2, branch to |
| 600 | // instruction at branchoffset |
| 601 | // (signed short constructed |
| 602 | // from unsigned bytes |
| 603 | // branchbyte1 << 8 + |
| 604 | // branchbyte2) |
| 605 | final static short if_icmpge = 0xa2; // branchbyte1, |
| 606 | // branchbyte2 |
| 607 | // value1, value2 ? if value1 is |
| 608 | // greater than or equal to |
| 609 | // value2, branch to instruction |
| 610 | // at branchoffset (signed short |
| 611 | // constructed from unsigned |
| 612 | // bytes branchbyte1 << 8 + |
| 613 | // branchbyte2) |
| 614 | final static short if_icmpgt = 0xa3; // branchbyte1, |
| 615 | // branchbyte2 |
| 616 | // value1, value2 ? if value1 is |
| 617 | // greater than value2, branch |
| 618 | // to instruction at |
| 619 | // branchoffset (signed short |
| 620 | // constructed from unsigned |
| 621 | // bytes branchbyte1 << 8 + |
| 622 | // branchbyte2) |
| 623 | final static short if_icmple = 0xa4; // branchbyte1, |
| 624 | // branchbyte2 |
| 625 | // value1, value2 ? if value1 is |
| 626 | // less than or equal to value2, |
| 627 | // branch to instruction at |
| 628 | // branchoffset (signed short |
| 629 | // constructed from unsigned |
| 630 | // bytes branchbyte1 << 8 + |
| 631 | // branchbyte2) |
| 632 | final static short if_acmpeq = 0xa5; // branchbyte1, |
| 633 | // branchbyte2 |
| 634 | // value1, value2 ? if |
| 635 | // references are equal, branch |
| 636 | // to instruction at |
| 637 | // branchoffset (signed short |
| 638 | // constructed from unsigned |
| 639 | // bytes branchbyte1 << 8 + |
| 640 | // branchbyte2) |
| 641 | final static short if_acmpne = 0xa6; // branchbyte1, |
| 642 | // branchbyte2 |
| 643 | // value1, value2 ? if |
| 644 | // references are not equal, |
| 645 | // branch to instruction at |
| 646 | // branchoffset (signed short |
| 647 | // constructed from unsigned |
| 648 | // bytes branchbyte1 << 8 + |
| 649 | // branchbyte2) |
| 650 | final static short goto_ = 0xa7; // branchbyte1, |
| 651 | // branchbyte2 [no |
| 652 | // change] goes to another |
| 653 | // instruction at branchoffset |
| 654 | // (signed short constructed |
| 655 | // from unsigned bytes |
| 656 | // branchbyte1 << 8 + |
| 657 | // branchbyte2) |
| 658 | final static short jsr = 0xa8; // branchbyte1, |
| 659 | // branchbyte2 ? |
| 660 | // address jump to subroutine at |
| 661 | // branchoffset (signed short |
| 662 | // constructed from unsigned |
| 663 | // bytes branchbyte1 << 8 + |
| 664 | // branchbyte2) and place the |
| 665 | // return address on the stack |
| 666 | final static short ret = 0xa9; // index [No change] |
| 667 | // continue |
| 668 | // execution from address taken |
| 669 | // from a local variable #index |
| 670 | // (the asymmetry with jsr is |
| 671 | // intentional) |
| 672 | final static short tableswitch = 0xaa; // [0-3 bytes padding], |
| 673 | // defaultbyte1, defaultbyte2, |
| 674 | // defaultbyte3, defaultbyte4, |
| 675 | // lowbyte1, lowbyte2, lowbyte3, |
| 676 | // lowbyte4, highbyte1, |
| 677 | // highbyte2, highbyte3, |
| 678 | // highbyte4, jump offsets... |
| 679 | // index ? continue execution |
| 680 | // from an address in the table |
| 681 | // at offset index |
| 682 | final static short lookupswitch = 0xab; // <0-3 bytes padding>, |
| 683 | // defaultbyte1, defaultbyte2, |
| 684 | // defaultbyte3, defaultbyte4, |
| 685 | // npairs1, npairs2, npairs3, |
| 686 | // npairs4, match-offset |
| 687 | // pairs... key ? a target |
| 688 | // address is looked up from a |
| 689 | // table using a key and |
| 690 | // execution continues from the |
| 691 | // instruction at that address |
| 692 | final static short ireturn = 0xac; // value ? [empty] |
| 693 | // returns an |
| 694 | // integer from a method |
| 695 | final static short lreturn = 0xad; // value ? [empty] |
| 696 | // returns a |
| 697 | // long value |
| 698 | final static short freturn = 0xae; // value ? [empty] |
| 699 | // returns a |
| 700 | // float |
| 701 | final static short dreturn = 0xaf; // value ? [empty] |
| 702 | // returns a |
| 703 | // double from a method |
| 704 | final static short areturn = 0xb0; // objectref ? [empty] |
| 705 | // returns a |
| 706 | // reference from a method |
| 707 | final static short return_ = 0xb1; // ? [empty] return void |
| 708 | // from |
| 709 | // method |
| 710 | final static short getstatic = 0xb2; // index1, index2 ? |
| 711 | // value gets a |
| 712 | // static field value of a |
| 713 | // class, where the field is |
| 714 | // identified by field reference |
| 715 | // in the constant pool index |
| 716 | // (index1 << 8 + index2) |
| 717 | final static short putstatic = 0xb3; // indexbyte1, |
| 718 | // indexbyte2 value |
| 719 | // ? set static field to value |
| 720 | // in a class, where the field |
| 721 | // is identified by a field |
| 722 | // reference index in constant |
| 723 | // pool (indexbyte1 << 8 + |
| 724 | // indexbyte2) |
| 725 | final static short getfield = 0xb4; // index1, index2 |
| 726 | // objectref ? |
| 727 | // value gets a field value of |
| 728 | // an object objectref, where |
| 729 | // the field is identified by |
| 730 | // field reference in the |
| 731 | // constant pool index (index1 |
| 732 | // << 8 + index2) |
| 733 | final static short putfield = 0xb5; // indexbyte1, |
| 734 | // indexbyte2 |
| 735 | // objectref, value ? set field |
| 736 | // to value in an object |
| 737 | // objectref, where the field is |
| 738 | // identified by a field |
| 739 | // reference index in constant |
| 740 | // pool (indexbyte1 << 8 + |
| 741 | // indexbyte2) |
| 742 | final static short invokevirtual = 0xb6; // indexbyte1, |
| 743 | // indexbyte2 |
| 744 | // objectref, [arg1, arg2, ...] |
| 745 | // ? invoke virtual method on |
| 746 | // object objectref, where the |
| 747 | // method is identified by |
| 748 | // method reference index in |
| 749 | // constant pool (indexbyte1 << |
| 750 | // 8 + indexbyte2) |
| 751 | final static short invokespecial = 0xb7; // indexbyte1, |
| 752 | // indexbyte2 |
| 753 | // objectref, [arg1, arg2, ...] |
| 754 | // ? invoke instance method on |
| 755 | // object objectref, where the |
| 756 | // method is identified by |
| 757 | // method reference index in |
| 758 | // constant pool (indexbyte1 << |
| 759 | // 8 + indexbyte2) |
| 760 | final static short invokestatic = 0xb8; // indexbyte1, |
| 761 | // indexbyte2 [arg1, |
| 762 | // arg2, ...] ? invoke a static |
| 763 | // method, where the method is |
| 764 | // identified by method |
| 765 | // reference index in constant |
| 766 | // pool (indexbyte1 << 8 + |
| 767 | // indexbyte2) |
| 768 | final static short invokeinterface = 0xb9; // indexbyte1, |
| 769 | // indexbyte2, |
| 770 | // count, 0 objectref, [arg1, |
| 771 | // arg2, ...] ? invokes an |
| 772 | // interface method on object |
| 773 | // objectref, where the |
| 774 | // interface method is |
| 775 | // identified by method |
| 776 | // reference index in constant |
| 777 | // pool (indexbyte1 << 8 + |
| 778 | // indexbyte2) |
| 779 | final static short xxxunusedxxx = 0xba; // this opcode is |
| 780 | // reserved "for |
| 781 | // historical reasons" |
| 782 | final static short new_ = 0xbb; // indexbyte1, |
| 783 | // indexbyte2 ? |
| 784 | // objectref creates new object |
| 785 | // of type identified by class |
| 786 | // reference in constant pool |
| 787 | // index (indexbyte1 << 8 + |
| 788 | // indexbyte2) |
| 789 | final static short newarray = 0xbc; // atype count ? |
| 790 | // arrayref |
| 791 | // creates new array with count |
| 792 | // elements of primitive type |
| 793 | // identified by atype |
| 794 | final static short anewarray = 0xbd; // indexbyte1, |
| 795 | // indexbyte2 count |
| 796 | // ? arrayref creates a new |
| 797 | // array of references of length |
| 798 | // count and component type |
| 799 | // identified by the class |
| 800 | // reference index (indexbyte1 |
| 801 | // << 8 + indexbyte2) in the |
| 802 | // constant pool |
| 803 | final static short arraylength = 0xbe; // arrayref ? length |
| 804 | // gets the |
| 805 | // length of an array |
| 806 | final static short athrow = 0xbf; // objectref ? [empty], |
| 807 | // objectref throws an error or |
| 808 | // exception (notice that the |
| 809 | // rest of the stack is cleared, |
| 810 | // leaving only a reference to |
| 811 | // the Throwable) |
| 812 | final static short checkcast = 0xc0; // indexbyte1, |
| 813 | // indexbyte2 |
| 814 | // objectref ? objectref checks |
| 815 | // whether an objectref is of a |
| 816 | // certain type, the class |
| 817 | // reference of which is in the |
| 818 | // constant pool at index |
| 819 | // (indexbyte1 << 8 + |
| 820 | // indexbyte2) |
| 821 | final static short instanceof_ = 0xc1; // indexbyte1, |
| 822 | // indexbyte2 |
| 823 | // objectref ? result determines |
| 824 | // if an object objectref is of |
| 825 | // a given type, identified by |
| 826 | // class reference index in |
| 827 | // constant pool (indexbyte1 << |
| 828 | // 8 + indexbyte2) |
| 829 | final static short monitorenter = 0xc2; // objectref ? enter |
| 830 | // monitor for |
| 831 | // object ("grab the lock" - |
| 832 | // start of synchronized() |
| 833 | // section) |
| 834 | final static short monitorexit = 0xc3; // objectref ? exit |
| 835 | // monitor for |
| 836 | // object ("release the lock" - |
| 837 | // end of synchronized() |
| 838 | // section) |
| 839 | final static short wide = 0xc4; // opcode, indexbyte1, |
| 840 | // indexbyte2 |
| 841 | final static short multianewarray = 0xc5; // indexbyte1, |
| 842 | // indexbyte2, |
| 843 | // dimensions count1, |
| 844 | // [count2,...] ? arrayref |
| 845 | // create a new array of |
| 846 | // dimensions dimensions with |
| 847 | // elements of type identified |
| 848 | // by class reference in |
| 849 | // constant pool index |
| 850 | // (indexbyte1 << 8 + |
| 851 | // indexbyte2); the sizes of |
| 852 | // each dimension is identified |
| 853 | // by count1, [count2, etc] |
| 854 | final static short ifnull = 0xc6; // branchbyte1, |
| 855 | // branchbyte2 |
| 856 | // value ? if value is null, |
| 857 | // branch to instruction at |
| 858 | // branchoffset (signed short |
| 859 | // constructed from unsigned |
| 860 | // bytes branchbyte1 << 8 + |
| 861 | // branchbyte2) |
| 862 | final static short ifnonnull = 0xc7; // branchbyte1, |
| 863 | // branchbyte2 |
| 864 | // value ? if value is not null, |
| 865 | // branch to instruction at |
| 866 | // branchoffset (signed short |
| 867 | // constructed from unsigned |
| 868 | // bytes branchbyte1 << 8 + |
| 869 | // branchbyte2) |
| 870 | final static short goto_w = 0xc8; // branchbyte1, |
| 871 | // branchbyte2, |
| 872 | // branchbyte3, branchbyte4 [no |
| 873 | // change] goes to another |
| 874 | // instruction at branchoffset |
| 875 | // (signed int constructed from |
| 876 | // unsigned bytes branchbyte1 << |
| 877 | // 24 + branchbyte2 << 16 + |
| 878 | // branchbyte3 << 8 + |
| 879 | // branchbyte4) |
| 880 | final static short jsr_w = 0xc9; // branchbyte1, |
| 881 | // branchbyte2, |
| 882 | // branchbyte3, branchbyte4 ? |
| 883 | // address jump to subroutine at |
| 884 | // branchoffset (signed int |
| 885 | // constructed from unsigned |
| 886 | // bytes branchbyte1 << 24 + |
| 887 | // branchbyte2 << 16 + |
| 888 | // branchbyte3 << 8 + |
| 889 | // branchbyte4) and place the |
| 890 | // return address on the stack |
| 891 | final static short breakpoint = 0xca; // reserved for |
| 892 | // breakpoints in |
| 893 | // Java debuggers; should not |
| 894 | // appear in any class file |
| 895 | final static short impdep1 = 0xfe; // reserved for |
| 896 | // implementation-dependent |
| 897 | // operations within debuggers; |
| 898 | // should not appear in any |
| 899 | // class file |
| 900 | final static short impdep2 = 0xff; // reserved for |
| 901 | // implementation-dependent |
| 902 | // operations within debuggers; |
| 903 | // should not appear in any |
| 904 | // class file |
| 905 | |
| 906 | final static byte OFFSETS[] = new byte[256]; |
| 907 | |
| 908 | static { |
| 909 | OFFSETS[bipush] = 1; // byte ? value pushes a byte onto the |
| 910 | // stack as an integer value |
| 911 | OFFSETS[sipush] = 2; // byte1, byte2 ? value pushes a signed |
| 912 | // integer (byte1 << 8 + byte2) onto the |
| 913 | // stack |
| 914 | OFFSETS[ldc] = 1; // index ? value pushes a constant |
| 915 | // #index from a constant pool (String, |
| 916 | // int, float or class type) onto the |
| 917 | // stack |
| 918 | OFFSETS[ldc_w] = 2; // indexbyte1, indexbyte2 ? value pushes |
| 919 | // a constant #index from a constant |
| 920 | // pool (String, int, float or class |
| 921 | // type) onto the stack (wide index is |
| 922 | // constructed as indexbyte1 << 8 + |
| 923 | // indexbyte2) |
| 924 | OFFSETS[ldc2_w] = 2; // indexbyte1, indexbyte2 ? value pushes |
| 925 | // a constant #index from a constant |
| 926 | // pool (double or long) onto the stack |
| 927 | // (wide index is constructed as |
| 928 | // indexbyte1 << 8 + indexbyte2) |
| 929 | OFFSETS[iload] = 1; // index ? value loads an int value from |
| 930 | // a variable #index |
| 931 | OFFSETS[lload] = 1; // index ? value load a long value from |
| 932 | // a local variable #index |
| 933 | OFFSETS[fload] = 1; // index ? value loads a float value |
| 934 | // from a local variable #index |
| 935 | OFFSETS[dload] = 1; // index ? value loads a double value |
| 936 | // from a local variable #index |
| 937 | OFFSETS[aload] = 1; // index ? objectref loads a reference |
| 938 | // onto the stack from a local variable |
| 939 | // #index |
| 940 | OFFSETS[istore] = 1; // index value ? store int value into |
| 941 | // variable #index |
| 942 | OFFSETS[lstore] = 1; // index value ? store a long value in a |
| 943 | // local variable #index |
| 944 | OFFSETS[fstore] = 1; // index value ? stores a float value |
| 945 | // into a local variable #index |
| 946 | OFFSETS[dstore] = 1; // index value ? stores a double value |
| 947 | // into a local variable #index |
| 948 | OFFSETS[iinc] = 2; // index, const [No change] increment |
| 949 | // local variable #index by signed byte |
| 950 | // const |
| 951 | OFFSETS[ifeq] = 2; // branchbyte1, branchbyte2 value ? if |
| 952 | // value is 0, branch to instruction at |
| 953 | // branchoffset (signed short |
| 954 | // constructed from unsigned bytes |
| 955 | // branchbyte1 << 8 + branchbyte2) |
| 956 | OFFSETS[astore] = 1; // index objectref ? stores a reference |
| 957 | // into a local variable #index |
| 958 | OFFSETS[ifne] = 2; // branchbyte1, branchbyte2 value ? if |
| 959 | // value is not 0, branch to instruction |
| 960 | // at branchoffset (signed short |
| 961 | // constructed from unsigned bytes |
| 962 | // branchbyte1 << 8 + branchbyte2) |
| 963 | OFFSETS[iflt] = 2; // branchbyte1, branchbyte2 value ? if |
| 964 | // value is less than 0, branch to |
| 965 | // instruction at branchoffset (signed |
| 966 | // short constructed from unsigned bytes |
| 967 | // branchbyte1 << 8 + branchbyte2) |
| 968 | OFFSETS[ifge] = 2; // branchbyte1, branchbyte2 value ? if |
| 969 | // value is greater than or equal to 0, |
| 970 | // branch to instruction at branchoffset |
| 971 | // (signed short constructed from |
| 972 | // unsigned bytes branchbyte1 << 8 + |
| 973 | // branchbyte2) |
| 974 | OFFSETS[ifgt] = 2; // branchbyte1, branchbyte2 value ? if |
| 975 | // value is greater than 0, branch to |
| 976 | // instruction at branchoffset (signed |
| 977 | // short constructed from unsigned bytes |
| 978 | // branchbyte1 << 8 + branchbyte2) |
| 979 | OFFSETS[ifle] = 2; // branchbyte1, branchbyte2 value ? if |
| 980 | // value is less than or equal to 0, |
| 981 | // branch to instruction at branchoffset |
| 982 | // (signed short constructed from |
| 983 | // unsigned bytes branchbyte1 << 8 + |
| 984 | // branchbyte2) |
| 985 | OFFSETS[if_icmpeq] = 2; // branchbyte1, branchbyte2 value1, |
| 986 | // value2 ? if ints are equal, |
| 987 | // branch to instruction at |
| 988 | // branchoffset (signed short |
| 989 | // constructed from unsigned bytes |
| 990 | // branchbyte1 << 8 + branchbyte2) |
| 991 | OFFSETS[if_icmpne] = 2; // branchbyte1, branchbyte2 value1, |
| 992 | // value2 ? if ints are not equal, |
| 993 | // branch to instruction at |
| 994 | // branchoffset (signed short |
| 995 | // constructed from unsigned bytes |
| 996 | // branchbyte1 << 8 + branchbyte2) |
| 997 | OFFSETS[if_icmplt] = 2; // branchbyte1, branchbyte2 value1, |
| 998 | // value2 ? if value1 is less than |
| 999 | // value2, branch to instruction at |
| 1000 | // branchoffset (signed short |
| 1001 | // constructed from unsigned bytes |
| 1002 | // branchbyte1 << 8 + branchbyte2) |
| 1003 | OFFSETS[if_icmpge] = 2; // branchbyte1, branchbyte2 value1, |
| 1004 | // value2 ? if value1 is greater |
| 1005 | // than or equal to value2, branch |
| 1006 | // to instruction at branchoffset |
| 1007 | // (signed short constructed from |
| 1008 | // unsigned bytes branchbyte1 << 8 + |
| 1009 | // branchbyte2) |
| 1010 | OFFSETS[if_icmpgt] = 2; // branchbyte1, branchbyte2 value1, |
| 1011 | // value2 ? if value1 is greater |
| 1012 | // than value2, branch to |
| 1013 | // instruction at branchoffset |
| 1014 | // (signed short constructed from |
| 1015 | // unsigned bytes branchbyte1 << 8 + |
| 1016 | // branchbyte2) |
| 1017 | OFFSETS[if_icmple] = 2; // branchbyte1, branchbyte2 value1, |
| 1018 | // value2 ? if value1 is less than |
| 1019 | // or equal to value2, branch to |
| 1020 | // instruction at branchoffset |
| 1021 | // (signed short constructed from |
| 1022 | // unsigned bytes branchbyte1 << 8 + |
| 1023 | // branchbyte2) |
| 1024 | OFFSETS[if_acmpeq] = 2; // branchbyte1, branchbyte2 value1, |
| 1025 | // value2 ? if references are equal, |
| 1026 | // branch to instruction at |
| 1027 | // branchoffset (signed short |
| 1028 | // constructed from unsigned bytes |
| 1029 | // branchbyte1 << 8 + branchbyte2) |
| 1030 | OFFSETS[if_acmpne] = 2; // branchbyte1, branchbyte2 value1, |
| 1031 | // value2 ? if references are not |
| 1032 | // equal, branch to instruction at |
| 1033 | // branchoffset (signed short |
| 1034 | // constructed from unsigned bytes |
| 1035 | // branchbyte1 << 8 + branchbyte2) |
| 1036 | OFFSETS[goto_] = 2; // branchbyte1, branchbyte2 [no change] |
| 1037 | // goes to another instruction at |
| 1038 | // branchoffset (signed short |
| 1039 | // constructed from unsigned bytes |
| 1040 | // branchbyte1 << 8 + branchbyte2) |
| 1041 | OFFSETS[jsr] = 2; // branchbyte1, branchbyte2 ? address |
| 1042 | // jump to subroutine at branchoffset |
| 1043 | // (signed short constructed from |
| 1044 | // unsigned bytes branchbyte1 << 8 + |
| 1045 | // branchbyte2) and place the return |
| 1046 | // address on the stack |
| 1047 | OFFSETS[ret] = 1; // index [No change] continue execution |
| 1048 | // from address taken from a local |
| 1049 | // variable #index (the asymmetry with |
| 1050 | // jsr is intentional) |
| 1051 | OFFSETS[tableswitch] = -1; // [0-3 bytes padding], |
| 1052 | // defaultbyte1, defaultbyte2, |
| 1053 | // defaultbyte3, defaultbyte4, |
| 1054 | // lowbyte1, lowbyte2, lowbyte3, |
| 1055 | // lowbyte4, highbyte1, |
| 1056 | // highbyte2, highbyte3, |
| 1057 | // highbyte4, jump offsets... |
| 1058 | // index ? continue execution |
| 1059 | // from an address in the table |
| 1060 | // at offset index |
| 1061 | OFFSETS[lookupswitch] = -1; // <0-3 bytes padding>, |
| 1062 | // defaultbyte1, defaultbyte2, |
| 1063 | // defaultbyte3, defaultbyte4, |
| 1064 | // npairs1, npairs2, npairs3, |
| 1065 | // npairs4, match-offset |
| 1066 | // pairs... key ? a target |
| 1067 | // address is looked up from a |
| 1068 | // table using a key and |
| 1069 | // execution continues from the |
| 1070 | // instruction at that address |
| 1071 | OFFSETS[getstatic] = 2; // index1, index2 ? value gets a |
| 1072 | // static field value of a class, |
| 1073 | // where the field is identified by |
| 1074 | // field reference in the constant |
| 1075 | // pool index (index1 << 8 + index2) |
| 1076 | OFFSETS[putstatic] = 2; // indexbyte1, indexbyte2 value ? |
| 1077 | // set static field to value in a |
| 1078 | // class, where the field is |
| 1079 | // identified by a field reference |
| 1080 | // index in constant pool |
| 1081 | // (indexbyte1 << 8 + indexbyte2) |
| 1082 | OFFSETS[getfield] = 2; // index1, index2 objectref ? value |
| 1083 | // gets a field value of an object |
| 1084 | // objectref, where the field is |
| 1085 | // identified by field reference in |
| 1086 | // the constant pool index (index1 |
| 1087 | // << 8 + index2) |
| 1088 | OFFSETS[putfield] = 2; // indexbyte1, indexbyte2 objectref, |
| 1089 | // value ? set field to value in an |
| 1090 | // object objectref, where the field |
| 1091 | // is identified by a field |
| 1092 | // reference index in constant pool |
| 1093 | // (indexbyte1 << 8 + indexbyte2) |
| 1094 | OFFSETS[invokevirtual] = 2; // indexbyte1, indexbyte2 |
| 1095 | // objectref, [arg1, arg2, ...] |
| 1096 | // ? invoke virtual method on |
| 1097 | // object objectref, where the |
| 1098 | // method is identified by |
| 1099 | // method reference index in |
| 1100 | // constant pool (indexbyte1 << |
| 1101 | // 8 + indexbyte2) |
| 1102 | OFFSETS[invokespecial] = 2; // indexbyte1, indexbyte2 |
| 1103 | // objectref, [arg1, arg2, ...] |
| 1104 | // ? invoke instance method on |
| 1105 | // object objectref, where the |
| 1106 | // method is identified by |
| 1107 | // method reference index in |
| 1108 | // constant pool (indexbyte1 << |
| 1109 | // 8 + indexbyte2) |
| 1110 | OFFSETS[invokestatic] = 2; // indexbyte1, indexbyte2 [arg1, |
| 1111 | // arg2, ...] ? invoke a static |
| 1112 | // method, where the method is |
| 1113 | // identified by method |
| 1114 | // reference index in constant |
| 1115 | // pool (indexbyte1 << 8 + |
| 1116 | // indexbyte2) |
| 1117 | OFFSETS[invokeinterface] = 2; // indexbyte1, indexbyte2, |
| 1118 | // count, 0 objectref, |
| 1119 | // [arg1, arg2, ...] ? |
| 1120 | // invokes an interface |
| 1121 | // method on object |
| 1122 | // objectref, where the |
| 1123 | // interface method is |
| 1124 | // identified by method |
| 1125 | // reference index in |
| 1126 | // constant pool (indexbyte1 |
| 1127 | // << 8 + indexbyte2) |
| 1128 | OFFSETS[new_] = 2; // indexbyte1, indexbyte2 ? objectref |
| 1129 | // creates new object of type identified |
| 1130 | // by class reference in constant pool |
| 1131 | // index (indexbyte1 << 8 + indexbyte2) |
| 1132 | OFFSETS[newarray] = 1; // atype count ? arrayref creates |
| 1133 | // new array with count elements of |
| 1134 | // primitive type identified by |
| 1135 | // atype |
| 1136 | OFFSETS[anewarray] = 2; // indexbyte1, indexbyte2 count ? |
| 1137 | // arrayref creates a new array of |
| 1138 | // references of length count and |
| 1139 | // component type identified by the |
| 1140 | // class reference index (indexbyte1 |
| 1141 | // << 8 + indexbyte2) in the |
| 1142 | // constant pool |
| 1143 | OFFSETS[checkcast] = 2; // indexbyte1, indexbyte2 objectref |
| 1144 | // ? objectref checks whether an |
| 1145 | // objectref is of a certain type, |
| 1146 | // the class reference of which is |
| 1147 | // in the constant pool at index |
| 1148 | // (indexbyte1 << 8 + indexbyte2) |
| 1149 | OFFSETS[instanceof_] = 2; // indexbyte1, indexbyte2 objectref |
| 1150 | // ? result determines if an object |
| 1151 | // objectref is of a given type, |
| 1152 | // identified by class reference |
| 1153 | // index in constant pool |
| 1154 | // (indexbyte1 << 8 + indexbyte2) |
| 1155 | OFFSETS[wide] = 3; // opcode, indexbyte1, indexbyte2 |
| 1156 | OFFSETS[multianewarray] = 3; // indexbyte1, indexbyte2, |
| 1157 | // dimensions count1, |
| 1158 | // [count2,...] ? arrayref |
| 1159 | // create a new array of |
| 1160 | // dimensions dimensions with |
| 1161 | // elements of type identified |
| 1162 | // by class reference in |
| 1163 | // constant pool index |
| 1164 | // (indexbyte1 << 8 + |
| 1165 | // indexbyte2); the sizes of |
| 1166 | // each dimension is identified |
| 1167 | // by count1, [count2, etc] |
| 1168 | OFFSETS[ifnull] = 2; // branchbyte1, branchbyte2 value ? if |
| 1169 | // value is null, branch to instruction |
| 1170 | // at branchoffset (signed short |
| 1171 | // constructed from unsigned bytes |
| 1172 | // branchbyte1 << 8 + branchbyte2) |
| 1173 | OFFSETS[ifnonnull] = 2; // branchbyte1, branchbyte2 value ? |
| 1174 | // if value is not null, branch to |
| 1175 | // instruction at branchoffset |
| 1176 | // (signed short constructed from |
| 1177 | // unsigned bytes branchbyte1 << 8 + |
| 1178 | // branchbyte2) |
| 1179 | OFFSETS[goto_w] = 4; // branchbyte1, branchbyte2, |
| 1180 | // branchbyte3, branchbyte4 [no change] |
| 1181 | // goes to another instruction at |
| 1182 | // branchoffset (signed int constructed |
| 1183 | // from unsigned bytes branchbyte1 << 24 |
| 1184 | // + branchbyte2 << 16 + branchbyte3 << |
| 1185 | // 8 + branchbyte4) |
| 1186 | OFFSETS[jsr_w] = 4; // branchbyte1, branchbyte2, |
| 1187 | // branchbyte3, branchbyte4 ? address |
| 1188 | // jump to subroutine at branchoffset |
| 1189 | // (signed int constructed from unsigned |
| 1190 | // bytes branchbyte1 << 24 + branchbyte2 |
| 1191 | // << 16 + branchbyte3 << 8 + |
| 1192 | // branchbyte4) and place the return |
| 1193 | // address on the stack |
| 1194 | } |
| 1195 | |
| 1196 | } |