1 /* 2 * Copyright (c) 2009, 2012, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 package com.sun.tools.classfile; 27 28 import static com.sun.tools.classfile.Instruction.Kind.*; 29 import static com.sun.tools.classfile.Opcode.Set.*; 30 31 /** 32 * See JVMS, chapter 6. 33 * 34 * <p>In addition to providing all the standard opcodes defined in JVMS, 35 * this class also provides legacy support for the PicoJava extensions. 36 * 37 * <p><b>This is NOT part of any supported API. 38 * If you write code that depends on this, you do so at your own risk. 39 * This code and its internal interfaces are subject to change or 40 * deletion without notice.</b> 41 */ 42 public enum Opcode { 43 NOP(0x0), 44 ACONST_NULL(0x1), 45 ICONST_M1(0x2), 46 ICONST_0(0x3), 47 ICONST_1(0x4), 48 ICONST_2(0x5), 49 ICONST_3(0x6), 50 ICONST_4(0x7), 51 ICONST_5(0x8), 52 LCONST_0(0x9), 53 LCONST_1(0xa), 54 FCONST_0(0xb), 55 FCONST_1(0xc), 56 FCONST_2(0xd), 57 DCONST_0(0xe), 58 DCONST_1(0xf), 59 BIPUSH(0x10, BYTE), 60 SIPUSH(0x11, SHORT), 61 LDC(0x12, CPREF), 62 LDC_W(0x13, CPREF_W), 63 LDC2_W(0x14, CPREF_W), 64 ILOAD(0x15, LOCAL), 65 LLOAD(0x16, LOCAL), 66 FLOAD(0x17, LOCAL), 67 DLOAD(0x18, LOCAL), 68 ALOAD(0x19, LOCAL), 69 ILOAD_0(0x1a), 70 ILOAD_1(0x1b), 71 ILOAD_2(0x1c), 72 ILOAD_3(0x1d), 73 LLOAD_0(0x1e), 74 LLOAD_1(0x1f), 75 LLOAD_2(0x20), 76 LLOAD_3(0x21), 77 FLOAD_0(0x22), 78 FLOAD_1(0x23), 79 FLOAD_2(0x24), 80 FLOAD_3(0x25), 81 DLOAD_0(0x26), 82 DLOAD_1(0x27), 83 DLOAD_2(0x28), 84 DLOAD_3(0x29), 85 ALOAD_0(0x2a), 86 ALOAD_1(0x2b), 87 ALOAD_2(0x2c), 88 ALOAD_3(0x2d), 89 IALOAD(0x2e), 90 LALOAD(0x2f), 91 FALOAD(0x30), 92 DALOAD(0x31), 93 AALOAD(0x32), 94 BALOAD(0x33), 95 CALOAD(0x34), 96 SALOAD(0x35), 97 ISTORE(0x36, LOCAL), 98 LSTORE(0x37, LOCAL), 99 FSTORE(0x38, LOCAL), 100 DSTORE(0x39, LOCAL), 101 ASTORE(0x3a, LOCAL), 102 ISTORE_0(0x3b), 103 ISTORE_1(0x3c), 104 ISTORE_2(0x3d), 105 ISTORE_3(0x3e), 106 LSTORE_0(0x3f), 107 LSTORE_1(0x40), 108 LSTORE_2(0x41), 109 LSTORE_3(0x42), 110 FSTORE_0(0x43), 111 FSTORE_1(0x44), 112 FSTORE_2(0x45), 113 FSTORE_3(0x46), 114 DSTORE_0(0x47), 115 DSTORE_1(0x48), 116 DSTORE_2(0x49), 117 DSTORE_3(0x4a), 118 ASTORE_0(0x4b), 119 ASTORE_1(0x4c), 120 ASTORE_2(0x4d), 121 ASTORE_3(0x4e), 122 IASTORE(0x4f), 123 LASTORE(0x50), 124 FASTORE(0x51), 125 DASTORE(0x52), 126 AASTORE(0x53), 127 BASTORE(0x54), 128 CASTORE(0x55), 129 SASTORE(0x56), 130 POP(0x57), 131 POP2(0x58), 132 DUP(0x59), 133 DUP_X1(0x5a), 134 DUP_X2(0x5b), 135 DUP2(0x5c), 136 DUP2_X1(0x5d), 137 DUP2_X2(0x5e), 138 SWAP(0x5f), 139 IADD(0x60), 140 LADD(0x61), 141 FADD(0x62), 142 DADD(0x63), 143 ISUB(0x64), 144 LSUB(0x65), 145 FSUB(0x66), 146 DSUB(0x67), 147 IMUL(0x68), 148 LMUL(0x69), 149 FMUL(0x6a), 150 DMUL(0x6b), 151 IDIV(0x6c), 152 LDIV(0x6d), 153 FDIV(0x6e), 154 DDIV(0x6f), 155 IREM(0x70), 156 LREM(0x71), 157 FREM(0x72), 158 DREM(0x73), 159 INEG(0x74), 160 LNEG(0x75), 161 FNEG(0x76), 162 DNEG(0x77), 163 ISHL(0x78), 164 LSHL(0x79), 165 ISHR(0x7a), 166 LSHR(0x7b), 167 IUSHR(0x7c), 168 LUSHR(0x7d), 169 IAND(0x7e), 170 LAND(0x7f), 171 IOR(0x80), 172 LOR(0x81), 173 IXOR(0x82), 174 LXOR(0x83), 175 IINC(0x84, LOCAL_BYTE), 176 I2L(0x85), 177 I2F(0x86), 178 I2D(0x87), 179 L2I(0x88), 180 L2F(0x89), 181 L2D(0x8a), 182 F2I(0x8b), 183 F2L(0x8c), 184 F2D(0x8d), 185 D2I(0x8e), 186 D2L(0x8f), 187 D2F(0x90), 188 I2B(0x91), 189 I2C(0x92), 190 I2S(0x93), 191 LCMP(0x94), 192 FCMPL(0x95), 193 FCMPG(0x96), 194 DCMPL(0x97), 195 DCMPG(0x98), 196 IFEQ(0x99, BRANCH), 197 IFNE(0x9a, BRANCH), 198 IFLT(0x9b, BRANCH), 199 IFGE(0x9c, BRANCH), 200 IFGT(0x9d, BRANCH), 201 IFLE(0x9e, BRANCH), 202 IF_ICMPEQ(0x9f, BRANCH), 203 IF_ICMPNE(0xa0, BRANCH), 204 IF_ICMPLT(0xa1, BRANCH), 205 IF_ICMPGE(0xa2, BRANCH), 206 IF_ICMPGT(0xa3, BRANCH), 207 IF_ICMPLE(0xa4, BRANCH), 208 IF_ACMPEQ(0xa5, BRANCH), 209 IF_ACMPNE(0xa6, BRANCH), 210 GOTO(0xa7, BRANCH), 211 JSR(0xa8, BRANCH), 212 RET(0xa9, LOCAL), 213 TABLESWITCH(0xaa, DYNAMIC), 214 LOOKUPSWITCH(0xab, DYNAMIC), 215 IRETURN(0xac), 216 LRETURN(0xad), 217 FRETURN(0xae), 218 DRETURN(0xaf), 219 ARETURN(0xb0), 220 RETURN(0xb1), 221 GETSTATIC(0xb2, CPREF_W), 222 PUTSTATIC(0xb3, CPREF_W), 223 GETFIELD(0xb4, CPREF_W), 224 PUTFIELD(0xb5, CPREF_W), 225 INVOKEVIRTUAL(0xb6, CPREF_W), 226 INVOKESPECIAL(0xb7, CPREF_W), 227 INVOKESTATIC(0xb8, CPREF_W), 228 INVOKEINTERFACE(0xb9, CPREF_W_UBYTE_ZERO), 229 INVOKEDYNAMIC(0xba, CPREF_W_UBYTE_ZERO), 230 NEW(0xbb, CPREF_W), 231 NEWARRAY(0xbc, ATYPE), 232 ANEWARRAY(0xbd, CPREF_W), 233 ARRAYLENGTH(0xbe), 234 ATHROW(0xbf), 235 CHECKCAST(0xc0, CPREF_W), 236 INSTANCEOF(0xc1, CPREF_W), 237 MONITORENTER(0xc2), 238 MONITOREXIT(0xc3), 239 // wide 0xc4 240 MULTIANEWARRAY(0xc5, CPREF_W_UBYTE), 241 IFNULL(0xc6, BRANCH), 242 IFNONNULL(0xc7, BRANCH), 243 GOTO_W(0xc8, BRANCH_W), 244 JSR_W(0xc9, BRANCH_W), 245 // impdep 0xfe: PicoJava nonpriv 246 // impdep 0xff: Picojava priv 247 248 // wide opcodes 249 ILOAD_W(0xc415, WIDE_LOCAL), 250 LLOAD_W(0xc416, WIDE_LOCAL), 251 FLOAD_W(0xc417, WIDE_LOCAL), 252 DLOAD_W(0xc418, WIDE_LOCAL), 253 ALOAD_W(0xc419, WIDE_LOCAL), 254 ISTORE_W(0xc436, WIDE_LOCAL), 255 LSTORE_W(0xc437, WIDE_LOCAL), 256 FSTORE_W(0xc438, WIDE_LOCAL), 257 DSTORE_W(0xc439, WIDE_LOCAL), 258 ASTORE_W(0xc43a, WIDE_LOCAL), 259 IINC_W(0xc484, WIDE_LOCAL_SHORT), 260 RET_W(0xc4a9, WIDE_LOCAL), 261 262 // PicoJava nonpriv instructions 263 LOAD_UBYTE(PICOJAVA, 0xfe00), 264 LOAD_BYTE(PICOJAVA, 0xfe01), 265 LOAD_CHAR(PICOJAVA, 0xfe02), 266 LOAD_SHORT(PICOJAVA, 0xfe03), 267 LOAD_WORD(PICOJAVA, 0xfe04), 268 RET_FROM_SUB(PICOJAVA, 0xfe05), 269 LOAD_CHAR_OE(PICOJAVA, 0xfe0a), 270 LOAD_SHORT_OE(PICOJAVA, 0xfe0b), 271 LOAD_WORD_OE(PICOJAVA, 0xfe0c), 272 NCLOAD_UBYTE(PICOJAVA, 0xfe10), 273 NCLOAD_BYTE(PICOJAVA, 0xfe11), 274 NCLOAD_CHAR(PICOJAVA, 0xfe12), 275 NCLOAD_SHORT(PICOJAVA, 0xfe13), 276 NCLOAD_WORD(PICOJAVA, 0xfe14), 277 NCLOAD_CHAR_OE(PICOJAVA, 0xfe1a), 278 NCLOAD_SHORT_OE(PICOJAVA, 0xfe1b), 279 NCLOAD_WORD_OE(PICOJAVA, 0xfe1c), 280 CACHE_FLUSH(PICOJAVA, 0xfe1e), 281 STORE_BYTE(PICOJAVA, 0xfe20), 282 STORE_SHORT(PICOJAVA, 0xfe22), 283 STORE_WORD(PICOJAVA, 0xfe24), 284 STORE_SHORT_OE(PICOJAVA, 0xfe2a), 285 STORE_WORD_OE(PICOJAVA, 0xfe2c), 286 NCSTORE_BYTE(PICOJAVA, 0xfe30), 287 NCSTORE_SHORT(PICOJAVA, 0xfe32), 288 NCSTORE_WORD(PICOJAVA, 0xfe34), 289 NCSTORE_SHORT_OE(PICOJAVA, 0xfe3a), 290 NCSTORE_WORD_OE(PICOJAVA, 0xfe3c), 291 ZERO_LINE(PICOJAVA, 0xfe3e), 292 ENTER_SYNC_METHOD(PICOJAVA, 0xfe3f), 293 294 // PicoJava priv instructions 295 PRIV_LOAD_UBYTE(PICOJAVA, 0xff00), 296 PRIV_LOAD_BYTE(PICOJAVA, 0xff01), 297 PRIV_LOAD_CHAR(PICOJAVA, 0xff02), 298 PRIV_LOAD_SHORT(PICOJAVA, 0xff03), 299 PRIV_LOAD_WORD(PICOJAVA, 0xff04), 300 PRIV_RET_FROM_TRAP(PICOJAVA, 0xff05), 301 PRIV_READ_DCACHE_TAG(PICOJAVA, 0xff06), 302 PRIV_READ_DCACHE_DATA(PICOJAVA, 0xff07), 303 PRIV_LOAD_CHAR_OE(PICOJAVA, 0xff0a), 304 PRIV_LOAD_SHORT_OE(PICOJAVA, 0xff0b), 305 PRIV_LOAD_WORD_OE(PICOJAVA, 0xff0c), 306 PRIV_READ_ICACHE_TAG(PICOJAVA, 0xff0e), 307 PRIV_READ_ICACHE_DATA(PICOJAVA, 0xff0f), 308 PRIV_NCLOAD_UBYTE(PICOJAVA, 0xff10), 309 PRIV_NCLOAD_BYTE(PICOJAVA, 0xff11), 310 PRIV_NCLOAD_CHAR(PICOJAVA, 0xff12), 311 PRIV_NCLOAD_SHORT(PICOJAVA, 0xff13), 312 PRIV_NCLOAD_WORD(PICOJAVA, 0xff14), 313 PRIV_POWERDOWN(PICOJAVA, 0xff16), 314 PRIV_READ_SCACHE_DATA(PICOJAVA, 0xff17), 315 PRIV_NCLOAD_CHAR_OE(PICOJAVA, 0xff1a), 316 PRIV_NCLOAD_SHORT_OE(PICOJAVA, 0xff1b), 317 PRIV_NCLOAD_WORD_OE(PICOJAVA, 0xff1c), 318 PRIV_CACHE_FLUSH(PICOJAVA, 0xff1e), 319 PRIV_CACHE_INDEX_FLUSH(PICOJAVA, 0xff1f), 320 PRIV_STORE_BYTE(PICOJAVA, 0xff20), 321 PRIV_STORE_SHORT(PICOJAVA, 0xff22), 322 PRIV_STORE_WORD(PICOJAVA, 0xff24), 323 PRIV_WRITE_DCACHE_TAG(PICOJAVA, 0xff26), 324 PRIV_WRITE_DCACHE_DATA(PICOJAVA, 0xff27), 325 PRIV_STORE_SHORT_OE(PICOJAVA, 0xff2a), 326 PRIV_STORE_WORD_OE(PICOJAVA, 0xff2c), 327 PRIV_WRITE_ICACHE_TAG(PICOJAVA, 0xff2e), 328 PRIV_WRITE_ICACHE_DATA(PICOJAVA, 0xff2f), 329 PRIV_NCSTORE_BYTE(PICOJAVA, 0xff30), 330 PRIV_NCSTORE_SHORT(PICOJAVA, 0xff32), 331 PRIV_NCSTORE_WORD(PICOJAVA, 0xff34), 332 PRIV_RESET(PICOJAVA, 0xff36), 333 PRIV_WRITE_SCACHE_DATA(PICOJAVA, 0xff37), 334 PRIV_NCSTORE_SHORT_OE(PICOJAVA, 0xff3a), 335 PRIV_NCSTORE_WORD_OE(PICOJAVA, 0xff3c), 336 PRIV_ZERO_LINE(PICOJAVA, 0xff3e), 337 PRIV_READ_REG_0(PICOJAVA, 0xff40), 338 PRIV_READ_REG_1(PICOJAVA, 0xff41), 339 PRIV_READ_REG_2(PICOJAVA, 0xff42), 340 PRIV_READ_REG_3(PICOJAVA, 0xff43), 341 PRIV_READ_REG_4(PICOJAVA, 0xff44), 342 PRIV_READ_REG_5(PICOJAVA, 0xff45), 343 PRIV_READ_REG_6(PICOJAVA, 0xff46), 344 PRIV_READ_REG_7(PICOJAVA, 0xff47), 345 PRIV_READ_REG_8(PICOJAVA, 0xff48), 346 PRIV_READ_REG_9(PICOJAVA, 0xff49), 347 PRIV_READ_REG_10(PICOJAVA, 0xff4a), 348 PRIV_READ_REG_11(PICOJAVA, 0xff4b), 349 PRIV_READ_REG_12(PICOJAVA, 0xff4c), 350 PRIV_READ_REG_13(PICOJAVA, 0xff4d), 351 PRIV_READ_REG_14(PICOJAVA, 0xff4e), 352 PRIV_READ_REG_15(PICOJAVA, 0xff4f), 353 PRIV_READ_REG_16(PICOJAVA, 0xff50), 354 PRIV_READ_REG_17(PICOJAVA, 0xff51), 355 PRIV_READ_REG_18(PICOJAVA, 0xff52), 356 PRIV_READ_REG_19(PICOJAVA, 0xff53), 357 PRIV_READ_REG_20(PICOJAVA, 0xff54), 358 PRIV_READ_REG_21(PICOJAVA, 0xff55), 359 PRIV_READ_REG_22(PICOJAVA, 0xff56), 360 PRIV_READ_REG_23(PICOJAVA, 0xff57), 361 PRIV_READ_REG_24(PICOJAVA, 0xff58), 362 PRIV_READ_REG_25(PICOJAVA, 0xff59), 363 PRIV_READ_REG_26(PICOJAVA, 0xff5a), 364 PRIV_READ_REG_27(PICOJAVA, 0xff5b), 365 PRIV_READ_REG_28(PICOJAVA, 0xff5c), 366 PRIV_READ_REG_29(PICOJAVA, 0xff5d), 367 PRIV_READ_REG_30(PICOJAVA, 0xff5e), 368 PRIV_READ_REG_31(PICOJAVA, 0xff5f), 369 PRIV_WRITE_REG_0(PICOJAVA, 0xff60), 370 PRIV_WRITE_REG_1(PICOJAVA, 0xff61), 371 PRIV_WRITE_REG_2(PICOJAVA, 0xff62), 372 PRIV_WRITE_REG_3(PICOJAVA, 0xff63), 373 PRIV_WRITE_REG_4(PICOJAVA, 0xff64), 374 PRIV_WRITE_REG_5(PICOJAVA, 0xff65), 375 PRIV_WRITE_REG_6(PICOJAVA, 0xff66), 376 PRIV_WRITE_REG_7(PICOJAVA, 0xff67), 377 PRIV_WRITE_REG_8(PICOJAVA, 0xff68), 378 PRIV_WRITE_REG_9(PICOJAVA, 0xff69), 379 PRIV_WRITE_REG_10(PICOJAVA, 0xff6a), 380 PRIV_WRITE_REG_11(PICOJAVA, 0xff6b), 381 PRIV_WRITE_REG_12(PICOJAVA, 0xff6c), 382 PRIV_WRITE_REG_13(PICOJAVA, 0xff6d), 383 PRIV_WRITE_REG_14(PICOJAVA, 0xff6e), 384 PRIV_WRITE_REG_15(PICOJAVA, 0xff6f), 385 PRIV_WRITE_REG_16(PICOJAVA, 0xff70), 386 PRIV_WRITE_REG_17(PICOJAVA, 0xff71), 387 PRIV_WRITE_REG_18(PICOJAVA, 0xff72), 388 PRIV_WRITE_REG_19(PICOJAVA, 0xff73), 389 PRIV_WRITE_REG_20(PICOJAVA, 0xff74), 390 PRIV_WRITE_REG_21(PICOJAVA, 0xff75), 391 PRIV_WRITE_REG_22(PICOJAVA, 0xff76), 392 PRIV_WRITE_REG_23(PICOJAVA, 0xff77), 393 PRIV_WRITE_REG_24(PICOJAVA, 0xff78), 394 PRIV_WRITE_REG_25(PICOJAVA, 0xff79), 395 PRIV_WRITE_REG_26(PICOJAVA, 0xff7a), 396 PRIV_WRITE_REG_27(PICOJAVA, 0xff7b), 397 PRIV_WRITE_REG_28(PICOJAVA, 0xff7c), 398 PRIV_WRITE_REG_29(PICOJAVA, 0xff7d), 399 PRIV_WRITE_REG_30(PICOJAVA, 0xff7e), 400 PRIV_WRITE_REG_31(PICOJAVA, 0xff7f); 401 Opcode(int opcode)402 Opcode(int opcode) { 403 this(STANDARD, opcode, NO_OPERANDS); 404 } 405 Opcode(int opcode, Instruction.Kind kind)406 Opcode(int opcode, Instruction.Kind kind) { 407 this(STANDARD, opcode, kind); 408 } 409 Opcode(Set set, int opcode)410 Opcode(Set set, int opcode) { 411 this(set, opcode, (set == STANDARD ? NO_OPERANDS : WIDE_NO_OPERANDS)); 412 } 413 Opcode(Set set, int opcode, Instruction.Kind kind)414 Opcode(Set set, int opcode, Instruction.Kind kind) { 415 this.set = set; 416 this.opcode = opcode; 417 this.kind = kind; 418 } 419 420 public final Set set; 421 public final int opcode; 422 public final Instruction.Kind kind; 423 424 /** Get the Opcode for a simple standard 1-byte opcode. */ get(int opcode)425 public static Opcode get(int opcode) { 426 return stdOpcodes[opcode]; 427 } 428 429 /** Get the Opcode for 1- or 2-byte opcode. */ get(int opcodePrefix, int opcode)430 public static Opcode get(int opcodePrefix, int opcode) { 431 Opcode[] block = getOpcodeBlock(opcodePrefix); 432 return (block == null ? null : block[opcode]); 433 } 434 getOpcodeBlock(int opcodePrefix)435 private static Opcode[] getOpcodeBlock(int opcodePrefix) { 436 switch (opcodePrefix) { 437 case 0: 438 return stdOpcodes; 439 case WIDE: 440 return wideOpcodes; 441 case NONPRIV: 442 return nonPrivOpcodes; 443 case PRIV: 444 return privOpcodes; 445 default: 446 return null; 447 } 448 449 } 450 451 private static final Opcode[] stdOpcodes = new Opcode[256]; 452 private static final Opcode[] wideOpcodes = new Opcode[256]; 453 private static final Opcode[] nonPrivOpcodes = new Opcode[256]; 454 private static final Opcode[] privOpcodes = new Opcode[256]; 455 static { 456 for (Opcode o: values()) 457 getOpcodeBlock(o.opcode >> 8)[o.opcode & 0xff] = o; 458 } 459 460 /** The byte prefix for the wide instructions. */ 461 public static final int WIDE = 0xc4; 462 /** The byte prefix for the PicoJava nonpriv instructions. */ 463 public static final int NONPRIV = 0xfe; 464 /** The byte prefix for the PicoJava priv instructions. */ 465 public static final int PRIV = 0xff; 466 467 public enum Set { 468 /** Standard opcodes. */ 469 STANDARD, 470 /** Legacy support for PicoJava opcodes. */ 471 PICOJAVA } 472 } 473