1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/src/share/classes/com/sun/tools/classfile/Opcode.java Wed Apr 27 01:34:52 2016 +0800
1.3 @@ -0,0 +1,472 @@
1.4 +/*
1.5 + * Copyright (c) 2009, 2012, Oracle and/or its affiliates. All rights reserved.
1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 + *
1.8 + * This code is free software; you can redistribute it and/or modify it
1.9 + * under the terms of the GNU General Public License version 2 only, as
1.10 + * published by the Free Software Foundation. Oracle designates this
1.11 + * particular file as subject to the "Classpath" exception as provided
1.12 + * by Oracle in the LICENSE file that accompanied this code.
1.13 + *
1.14 + * This code is distributed in the hope that it will be useful, but WITHOUT
1.15 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.16 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.17 + * version 2 for more details (a copy is included in the LICENSE file that
1.18 + * accompanied this code).
1.19 + *
1.20 + * You should have received a copy of the GNU General Public License version
1.21 + * 2 along with this work; if not, write to the Free Software Foundation,
1.22 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.23 + *
1.24 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
1.25 + * or visit www.oracle.com if you need additional information or have any
1.26 + * questions.
1.27 + */
1.28 +
1.29 +package com.sun.tools.classfile;
1.30 +
1.31 +import static com.sun.tools.classfile.Instruction.Kind.*;
1.32 +import static com.sun.tools.classfile.Opcode.Set.*;
1.33 +
1.34 +/**
1.35 + * See JVMS, chapter 6.
1.36 + *
1.37 + * <p>In addition to providing all the standard opcodes defined in JVMS,
1.38 + * this class also provides legacy support for the PicoJava extensions.
1.39 + *
1.40 + * <p><b>This is NOT part of any supported API.
1.41 + * If you write code that depends on this, you do so at your own risk.
1.42 + * This code and its internal interfaces are subject to change or
1.43 + * deletion without notice.</b>
1.44 + */
1.45 +public enum Opcode {
1.46 + NOP(0x0),
1.47 + ACONST_NULL(0x1),
1.48 + ICONST_M1(0x2),
1.49 + ICONST_0(0x3),
1.50 + ICONST_1(0x4),
1.51 + ICONST_2(0x5),
1.52 + ICONST_3(0x6),
1.53 + ICONST_4(0x7),
1.54 + ICONST_5(0x8),
1.55 + LCONST_0(0x9),
1.56 + LCONST_1(0xa),
1.57 + FCONST_0(0xb),
1.58 + FCONST_1(0xc),
1.59 + FCONST_2(0xd),
1.60 + DCONST_0(0xe),
1.61 + DCONST_1(0xf),
1.62 + BIPUSH(0x10, BYTE),
1.63 + SIPUSH(0x11, SHORT),
1.64 + LDC(0x12, CPREF),
1.65 + LDC_W(0x13, CPREF_W),
1.66 + LDC2_W(0x14, CPREF_W),
1.67 + ILOAD(0x15, LOCAL),
1.68 + LLOAD(0x16, LOCAL),
1.69 + FLOAD(0x17, LOCAL),
1.70 + DLOAD(0x18, LOCAL),
1.71 + ALOAD(0x19, LOCAL),
1.72 + ILOAD_0(0x1a),
1.73 + ILOAD_1(0x1b),
1.74 + ILOAD_2(0x1c),
1.75 + ILOAD_3(0x1d),
1.76 + LLOAD_0(0x1e),
1.77 + LLOAD_1(0x1f),
1.78 + LLOAD_2(0x20),
1.79 + LLOAD_3(0x21),
1.80 + FLOAD_0(0x22),
1.81 + FLOAD_1(0x23),
1.82 + FLOAD_2(0x24),
1.83 + FLOAD_3(0x25),
1.84 + DLOAD_0(0x26),
1.85 + DLOAD_1(0x27),
1.86 + DLOAD_2(0x28),
1.87 + DLOAD_3(0x29),
1.88 + ALOAD_0(0x2a),
1.89 + ALOAD_1(0x2b),
1.90 + ALOAD_2(0x2c),
1.91 + ALOAD_3(0x2d),
1.92 + IALOAD(0x2e),
1.93 + LALOAD(0x2f),
1.94 + FALOAD(0x30),
1.95 + DALOAD(0x31),
1.96 + AALOAD(0x32),
1.97 + BALOAD(0x33),
1.98 + CALOAD(0x34),
1.99 + SALOAD(0x35),
1.100 + ISTORE(0x36, LOCAL),
1.101 + LSTORE(0x37, LOCAL),
1.102 + FSTORE(0x38, LOCAL),
1.103 + DSTORE(0x39, LOCAL),
1.104 + ASTORE(0x3a, LOCAL),
1.105 + ISTORE_0(0x3b),
1.106 + ISTORE_1(0x3c),
1.107 + ISTORE_2(0x3d),
1.108 + ISTORE_3(0x3e),
1.109 + LSTORE_0(0x3f),
1.110 + LSTORE_1(0x40),
1.111 + LSTORE_2(0x41),
1.112 + LSTORE_3(0x42),
1.113 + FSTORE_0(0x43),
1.114 + FSTORE_1(0x44),
1.115 + FSTORE_2(0x45),
1.116 + FSTORE_3(0x46),
1.117 + DSTORE_0(0x47),
1.118 + DSTORE_1(0x48),
1.119 + DSTORE_2(0x49),
1.120 + DSTORE_3(0x4a),
1.121 + ASTORE_0(0x4b),
1.122 + ASTORE_1(0x4c),
1.123 + ASTORE_2(0x4d),
1.124 + ASTORE_3(0x4e),
1.125 + IASTORE(0x4f),
1.126 + LASTORE(0x50),
1.127 + FASTORE(0x51),
1.128 + DASTORE(0x52),
1.129 + AASTORE(0x53),
1.130 + BASTORE(0x54),
1.131 + CASTORE(0x55),
1.132 + SASTORE(0x56),
1.133 + POP(0x57),
1.134 + POP2(0x58),
1.135 + DUP(0x59),
1.136 + DUP_X1(0x5a),
1.137 + DUP_X2(0x5b),
1.138 + DUP2(0x5c),
1.139 + DUP2_X1(0x5d),
1.140 + DUP2_X2(0x5e),
1.141 + SWAP(0x5f),
1.142 + IADD(0x60),
1.143 + LADD(0x61),
1.144 + FADD(0x62),
1.145 + DADD(0x63),
1.146 + ISUB(0x64),
1.147 + LSUB(0x65),
1.148 + FSUB(0x66),
1.149 + DSUB(0x67),
1.150 + IMUL(0x68),
1.151 + LMUL(0x69),
1.152 + FMUL(0x6a),
1.153 + DMUL(0x6b),
1.154 + IDIV(0x6c),
1.155 + LDIV(0x6d),
1.156 + FDIV(0x6e),
1.157 + DDIV(0x6f),
1.158 + IREM(0x70),
1.159 + LREM(0x71),
1.160 + FREM(0x72),
1.161 + DREM(0x73),
1.162 + INEG(0x74),
1.163 + LNEG(0x75),
1.164 + FNEG(0x76),
1.165 + DNEG(0x77),
1.166 + ISHL(0x78),
1.167 + LSHL(0x79),
1.168 + ISHR(0x7a),
1.169 + LSHR(0x7b),
1.170 + IUSHR(0x7c),
1.171 + LUSHR(0x7d),
1.172 + IAND(0x7e),
1.173 + LAND(0x7f),
1.174 + IOR(0x80),
1.175 + LOR(0x81),
1.176 + IXOR(0x82),
1.177 + LXOR(0x83),
1.178 + IINC(0x84, LOCAL_BYTE),
1.179 + I2L(0x85),
1.180 + I2F(0x86),
1.181 + I2D(0x87),
1.182 + L2I(0x88),
1.183 + L2F(0x89),
1.184 + L2D(0x8a),
1.185 + F2I(0x8b),
1.186 + F2L(0x8c),
1.187 + F2D(0x8d),
1.188 + D2I(0x8e),
1.189 + D2L(0x8f),
1.190 + D2F(0x90),
1.191 + I2B(0x91),
1.192 + I2C(0x92),
1.193 + I2S(0x93),
1.194 + LCMP(0x94),
1.195 + FCMPL(0x95),
1.196 + FCMPG(0x96),
1.197 + DCMPL(0x97),
1.198 + DCMPG(0x98),
1.199 + IFEQ(0x99, BRANCH),
1.200 + IFNE(0x9a, BRANCH),
1.201 + IFLT(0x9b, BRANCH),
1.202 + IFGE(0x9c, BRANCH),
1.203 + IFGT(0x9d, BRANCH),
1.204 + IFLE(0x9e, BRANCH),
1.205 + IF_ICMPEQ(0x9f, BRANCH),
1.206 + IF_ICMPNE(0xa0, BRANCH),
1.207 + IF_ICMPLT(0xa1, BRANCH),
1.208 + IF_ICMPGE(0xa2, BRANCH),
1.209 + IF_ICMPGT(0xa3, BRANCH),
1.210 + IF_ICMPLE(0xa4, BRANCH),
1.211 + IF_ACMPEQ(0xa5, BRANCH),
1.212 + IF_ACMPNE(0xa6, BRANCH),
1.213 + GOTO(0xa7, BRANCH),
1.214 + JSR(0xa8, BRANCH),
1.215 + RET(0xa9, LOCAL),
1.216 + TABLESWITCH(0xaa, DYNAMIC),
1.217 + LOOKUPSWITCH(0xab, DYNAMIC),
1.218 + IRETURN(0xac),
1.219 + LRETURN(0xad),
1.220 + FRETURN(0xae),
1.221 + DRETURN(0xaf),
1.222 + ARETURN(0xb0),
1.223 + RETURN(0xb1),
1.224 + GETSTATIC(0xb2, CPREF_W),
1.225 + PUTSTATIC(0xb3, CPREF_W),
1.226 + GETFIELD(0xb4, CPREF_W),
1.227 + PUTFIELD(0xb5, CPREF_W),
1.228 + INVOKEVIRTUAL(0xb6, CPREF_W),
1.229 + INVOKESPECIAL(0xb7, CPREF_W),
1.230 + INVOKESTATIC(0xb8, CPREF_W),
1.231 + INVOKEINTERFACE(0xb9, CPREF_W_UBYTE_ZERO),
1.232 + INVOKEDYNAMIC(0xba, CPREF_W_UBYTE_ZERO),
1.233 + NEW(0xbb, CPREF_W),
1.234 + NEWARRAY(0xbc, ATYPE),
1.235 + ANEWARRAY(0xbd, CPREF_W),
1.236 + ARRAYLENGTH(0xbe),
1.237 + ATHROW(0xbf),
1.238 + CHECKCAST(0xc0, CPREF_W),
1.239 + INSTANCEOF(0xc1, CPREF_W),
1.240 + MONITORENTER(0xc2),
1.241 + MONITOREXIT(0xc3),
1.242 + // wide 0xc4
1.243 + MULTIANEWARRAY(0xc5, CPREF_W_UBYTE),
1.244 + IFNULL(0xc6, BRANCH),
1.245 + IFNONNULL(0xc7, BRANCH),
1.246 + GOTO_W(0xc8, BRANCH_W),
1.247 + JSR_W(0xc9, BRANCH_W),
1.248 + // impdep 0xfe: PicoJava nonpriv
1.249 + // impdep 0xff: Picojava priv
1.250 +
1.251 + // wide opcodes
1.252 + ILOAD_W(0xc415, WIDE_LOCAL),
1.253 + LLOAD_W(0xc416, WIDE_LOCAL),
1.254 + FLOAD_W(0xc417, WIDE_LOCAL),
1.255 + DLOAD_W(0xc418, WIDE_LOCAL),
1.256 + ALOAD_W(0xc419, WIDE_LOCAL),
1.257 + ISTORE_W(0xc436, WIDE_LOCAL),
1.258 + LSTORE_W(0xc437, WIDE_LOCAL),
1.259 + FSTORE_W(0xc438, WIDE_LOCAL),
1.260 + DSTORE_W(0xc439, WIDE_LOCAL),
1.261 + ASTORE_W(0xc43a, WIDE_LOCAL),
1.262 + IINC_W(0xc484, WIDE_LOCAL_SHORT),
1.263 + RET_W(0xc4a9, WIDE_LOCAL),
1.264 +
1.265 + // PicoJava nonpriv instructions
1.266 + LOAD_UBYTE(PICOJAVA, 0xfe00),
1.267 + LOAD_BYTE(PICOJAVA, 0xfe01),
1.268 + LOAD_CHAR(PICOJAVA, 0xfe02),
1.269 + LOAD_SHORT(PICOJAVA, 0xfe03),
1.270 + LOAD_WORD(PICOJAVA, 0xfe04),
1.271 + RET_FROM_SUB(PICOJAVA, 0xfe05),
1.272 + LOAD_CHAR_OE(PICOJAVA, 0xfe0a),
1.273 + LOAD_SHORT_OE(PICOJAVA, 0xfe0b),
1.274 + LOAD_WORD_OE(PICOJAVA, 0xfe0c),
1.275 + NCLOAD_UBYTE(PICOJAVA, 0xfe10),
1.276 + NCLOAD_BYTE(PICOJAVA, 0xfe11),
1.277 + NCLOAD_CHAR(PICOJAVA, 0xfe12),
1.278 + NCLOAD_SHORT(PICOJAVA, 0xfe13),
1.279 + NCLOAD_WORD(PICOJAVA, 0xfe14),
1.280 + NCLOAD_CHAR_OE(PICOJAVA, 0xfe1a),
1.281 + NCLOAD_SHORT_OE(PICOJAVA, 0xfe1b),
1.282 + NCLOAD_WORD_OE(PICOJAVA, 0xfe1c),
1.283 + CACHE_FLUSH(PICOJAVA, 0xfe1e),
1.284 + STORE_BYTE(PICOJAVA, 0xfe20),
1.285 + STORE_SHORT(PICOJAVA, 0xfe22),
1.286 + STORE_WORD(PICOJAVA, 0xfe24),
1.287 + STORE_SHORT_OE(PICOJAVA, 0xfe2a),
1.288 + STORE_WORD_OE(PICOJAVA, 0xfe2c),
1.289 + NCSTORE_BYTE(PICOJAVA, 0xfe30),
1.290 + NCSTORE_SHORT(PICOJAVA, 0xfe32),
1.291 + NCSTORE_WORD(PICOJAVA, 0xfe34),
1.292 + NCSTORE_SHORT_OE(PICOJAVA, 0xfe3a),
1.293 + NCSTORE_WORD_OE(PICOJAVA, 0xfe3c),
1.294 + ZERO_LINE(PICOJAVA, 0xfe3e),
1.295 + ENTER_SYNC_METHOD(PICOJAVA, 0xfe3f),
1.296 +
1.297 + // PicoJava priv instructions
1.298 + PRIV_LOAD_UBYTE(PICOJAVA, 0xff00),
1.299 + PRIV_LOAD_BYTE(PICOJAVA, 0xff01),
1.300 + PRIV_LOAD_CHAR(PICOJAVA, 0xff02),
1.301 + PRIV_LOAD_SHORT(PICOJAVA, 0xff03),
1.302 + PRIV_LOAD_WORD(PICOJAVA, 0xff04),
1.303 + PRIV_RET_FROM_TRAP(PICOJAVA, 0xff05),
1.304 + PRIV_READ_DCACHE_TAG(PICOJAVA, 0xff06),
1.305 + PRIV_READ_DCACHE_DATA(PICOJAVA, 0xff07),
1.306 + PRIV_LOAD_CHAR_OE(PICOJAVA, 0xff0a),
1.307 + PRIV_LOAD_SHORT_OE(PICOJAVA, 0xff0b),
1.308 + PRIV_LOAD_WORD_OE(PICOJAVA, 0xff0c),
1.309 + PRIV_READ_ICACHE_TAG(PICOJAVA, 0xff0e),
1.310 + PRIV_READ_ICACHE_DATA(PICOJAVA, 0xff0f),
1.311 + PRIV_NCLOAD_UBYTE(PICOJAVA, 0xff10),
1.312 + PRIV_NCLOAD_BYTE(PICOJAVA, 0xff11),
1.313 + PRIV_NCLOAD_CHAR(PICOJAVA, 0xff12),
1.314 + PRIV_NCLOAD_SHORT(PICOJAVA, 0xff13),
1.315 + PRIV_NCLOAD_WORD(PICOJAVA, 0xff14),
1.316 + PRIV_POWERDOWN(PICOJAVA, 0xff16),
1.317 + PRIV_READ_SCACHE_DATA(PICOJAVA, 0xff17),
1.318 + PRIV_NCLOAD_CHAR_OE(PICOJAVA, 0xff1a),
1.319 + PRIV_NCLOAD_SHORT_OE(PICOJAVA, 0xff1b),
1.320 + PRIV_NCLOAD_WORD_OE(PICOJAVA, 0xff1c),
1.321 + PRIV_CACHE_FLUSH(PICOJAVA, 0xff1e),
1.322 + PRIV_CACHE_INDEX_FLUSH(PICOJAVA, 0xff1f),
1.323 + PRIV_STORE_BYTE(PICOJAVA, 0xff20),
1.324 + PRIV_STORE_SHORT(PICOJAVA, 0xff22),
1.325 + PRIV_STORE_WORD(PICOJAVA, 0xff24),
1.326 + PRIV_WRITE_DCACHE_TAG(PICOJAVA, 0xff26),
1.327 + PRIV_WRITE_DCACHE_DATA(PICOJAVA, 0xff27),
1.328 + PRIV_STORE_SHORT_OE(PICOJAVA, 0xff2a),
1.329 + PRIV_STORE_WORD_OE(PICOJAVA, 0xff2c),
1.330 + PRIV_WRITE_ICACHE_TAG(PICOJAVA, 0xff2e),
1.331 + PRIV_WRITE_ICACHE_DATA(PICOJAVA, 0xff2f),
1.332 + PRIV_NCSTORE_BYTE(PICOJAVA, 0xff30),
1.333 + PRIV_NCSTORE_SHORT(PICOJAVA, 0xff32),
1.334 + PRIV_NCSTORE_WORD(PICOJAVA, 0xff34),
1.335 + PRIV_RESET(PICOJAVA, 0xff36),
1.336 + PRIV_WRITE_SCACHE_DATA(PICOJAVA, 0xff37),
1.337 + PRIV_NCSTORE_SHORT_OE(PICOJAVA, 0xff3a),
1.338 + PRIV_NCSTORE_WORD_OE(PICOJAVA, 0xff3c),
1.339 + PRIV_ZERO_LINE(PICOJAVA, 0xff3e),
1.340 + PRIV_READ_REG_0(PICOJAVA, 0xff40),
1.341 + PRIV_READ_REG_1(PICOJAVA, 0xff41),
1.342 + PRIV_READ_REG_2(PICOJAVA, 0xff42),
1.343 + PRIV_READ_REG_3(PICOJAVA, 0xff43),
1.344 + PRIV_READ_REG_4(PICOJAVA, 0xff44),
1.345 + PRIV_READ_REG_5(PICOJAVA, 0xff45),
1.346 + PRIV_READ_REG_6(PICOJAVA, 0xff46),
1.347 + PRIV_READ_REG_7(PICOJAVA, 0xff47),
1.348 + PRIV_READ_REG_8(PICOJAVA, 0xff48),
1.349 + PRIV_READ_REG_9(PICOJAVA, 0xff49),
1.350 + PRIV_READ_REG_10(PICOJAVA, 0xff4a),
1.351 + PRIV_READ_REG_11(PICOJAVA, 0xff4b),
1.352 + PRIV_READ_REG_12(PICOJAVA, 0xff4c),
1.353 + PRIV_READ_REG_13(PICOJAVA, 0xff4d),
1.354 + PRIV_READ_REG_14(PICOJAVA, 0xff4e),
1.355 + PRIV_READ_REG_15(PICOJAVA, 0xff4f),
1.356 + PRIV_READ_REG_16(PICOJAVA, 0xff50),
1.357 + PRIV_READ_REG_17(PICOJAVA, 0xff51),
1.358 + PRIV_READ_REG_18(PICOJAVA, 0xff52),
1.359 + PRIV_READ_REG_19(PICOJAVA, 0xff53),
1.360 + PRIV_READ_REG_20(PICOJAVA, 0xff54),
1.361 + PRIV_READ_REG_21(PICOJAVA, 0xff55),
1.362 + PRIV_READ_REG_22(PICOJAVA, 0xff56),
1.363 + PRIV_READ_REG_23(PICOJAVA, 0xff57),
1.364 + PRIV_READ_REG_24(PICOJAVA, 0xff58),
1.365 + PRIV_READ_REG_25(PICOJAVA, 0xff59),
1.366 + PRIV_READ_REG_26(PICOJAVA, 0xff5a),
1.367 + PRIV_READ_REG_27(PICOJAVA, 0xff5b),
1.368 + PRIV_READ_REG_28(PICOJAVA, 0xff5c),
1.369 + PRIV_READ_REG_29(PICOJAVA, 0xff5d),
1.370 + PRIV_READ_REG_30(PICOJAVA, 0xff5e),
1.371 + PRIV_READ_REG_31(PICOJAVA, 0xff5f),
1.372 + PRIV_WRITE_REG_0(PICOJAVA, 0xff60),
1.373 + PRIV_WRITE_REG_1(PICOJAVA, 0xff61),
1.374 + PRIV_WRITE_REG_2(PICOJAVA, 0xff62),
1.375 + PRIV_WRITE_REG_3(PICOJAVA, 0xff63),
1.376 + PRIV_WRITE_REG_4(PICOJAVA, 0xff64),
1.377 + PRIV_WRITE_REG_5(PICOJAVA, 0xff65),
1.378 + PRIV_WRITE_REG_6(PICOJAVA, 0xff66),
1.379 + PRIV_WRITE_REG_7(PICOJAVA, 0xff67),
1.380 + PRIV_WRITE_REG_8(PICOJAVA, 0xff68),
1.381 + PRIV_WRITE_REG_9(PICOJAVA, 0xff69),
1.382 + PRIV_WRITE_REG_10(PICOJAVA, 0xff6a),
1.383 + PRIV_WRITE_REG_11(PICOJAVA, 0xff6b),
1.384 + PRIV_WRITE_REG_12(PICOJAVA, 0xff6c),
1.385 + PRIV_WRITE_REG_13(PICOJAVA, 0xff6d),
1.386 + PRIV_WRITE_REG_14(PICOJAVA, 0xff6e),
1.387 + PRIV_WRITE_REG_15(PICOJAVA, 0xff6f),
1.388 + PRIV_WRITE_REG_16(PICOJAVA, 0xff70),
1.389 + PRIV_WRITE_REG_17(PICOJAVA, 0xff71),
1.390 + PRIV_WRITE_REG_18(PICOJAVA, 0xff72),
1.391 + PRIV_WRITE_REG_19(PICOJAVA, 0xff73),
1.392 + PRIV_WRITE_REG_20(PICOJAVA, 0xff74),
1.393 + PRIV_WRITE_REG_21(PICOJAVA, 0xff75),
1.394 + PRIV_WRITE_REG_22(PICOJAVA, 0xff76),
1.395 + PRIV_WRITE_REG_23(PICOJAVA, 0xff77),
1.396 + PRIV_WRITE_REG_24(PICOJAVA, 0xff78),
1.397 + PRIV_WRITE_REG_25(PICOJAVA, 0xff79),
1.398 + PRIV_WRITE_REG_26(PICOJAVA, 0xff7a),
1.399 + PRIV_WRITE_REG_27(PICOJAVA, 0xff7b),
1.400 + PRIV_WRITE_REG_28(PICOJAVA, 0xff7c),
1.401 + PRIV_WRITE_REG_29(PICOJAVA, 0xff7d),
1.402 + PRIV_WRITE_REG_30(PICOJAVA, 0xff7e),
1.403 + PRIV_WRITE_REG_31(PICOJAVA, 0xff7f);
1.404 +
1.405 + Opcode(int opcode) {
1.406 + this(STANDARD, opcode, NO_OPERANDS);
1.407 + }
1.408 +
1.409 + Opcode(int opcode, Instruction.Kind kind) {
1.410 + this(STANDARD, opcode, kind);
1.411 + }
1.412 +
1.413 + Opcode(Set set, int opcode) {
1.414 + this(set, opcode, (set == STANDARD ? NO_OPERANDS : WIDE_NO_OPERANDS));
1.415 + }
1.416 +
1.417 + Opcode(Set set, int opcode, Instruction.Kind kind) {
1.418 + this.set = set;
1.419 + this.opcode = opcode;
1.420 + this.kind = kind;
1.421 + }
1.422 +
1.423 + public final Set set;
1.424 + public final int opcode;
1.425 + public final Instruction.Kind kind;
1.426 +
1.427 + /** Get the Opcode for a simple standard 1-byte opcode. */
1.428 + public static Opcode get(int opcode) {
1.429 + return stdOpcodes[opcode];
1.430 + }
1.431 +
1.432 + /** Get the Opcode for 1- or 2-byte opcode. */
1.433 + public static Opcode get(int opcodePrefix, int opcode) {
1.434 + Opcode[] block = getOpcodeBlock(opcodePrefix);
1.435 + return (block == null ? null : block[opcode]);
1.436 + }
1.437 +
1.438 + private static Opcode[] getOpcodeBlock(int opcodePrefix) {
1.439 + switch (opcodePrefix) {
1.440 + case 0:
1.441 + return stdOpcodes;
1.442 + case WIDE:
1.443 + return wideOpcodes;
1.444 + case NONPRIV:
1.445 + return nonPrivOpcodes;
1.446 + case PRIV:
1.447 + return privOpcodes;
1.448 + default:
1.449 + return null;
1.450 + }
1.451 +
1.452 + }
1.453 +
1.454 + private static final Opcode[] stdOpcodes = new Opcode[256];
1.455 + private static final Opcode[] wideOpcodes = new Opcode[256];
1.456 + private static final Opcode[] nonPrivOpcodes = new Opcode[256];
1.457 + private static final Opcode[] privOpcodes = new Opcode[256];
1.458 + static {
1.459 + for (Opcode o: values())
1.460 + getOpcodeBlock(o.opcode >> 8)[o.opcode & 0xff] = o;
1.461 + }
1.462 +
1.463 + /** The byte prefix for the wide instructions. */
1.464 + public static final int WIDE = 0xc4;
1.465 + /** The byte prefix for the PicoJava nonpriv instructions. */
1.466 + public static final int NONPRIV = 0xfe;
1.467 + /** The byte prefix for the PicoJava priv instructions. */
1.468 + public static final int PRIV = 0xff;
1.469 +
1.470 + public enum Set {
1.471 + /** Standard opcodes. */
1.472 + STANDARD,
1.473 + /** Legacy support for PicoJava opcodes. */
1.474 + PICOJAVA };
1.475 +}
