1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/src/share/classes/com/sun/tools/javac/jvm/ByteCodes.java Wed Apr 27 01:34:52 2016 +0800
1.3 @@ -0,0 +1,310 @@
1.4 +/*
1.5 + * Copyright (c) 1999, 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.javac.jvm;
1.30 +
1.31 +
1.32 +/** Bytecode instruction codes, as well as typecodes used as
1.33 + * instruction modifiers.
1.34 + *
1.35 + * <p><b>This is NOT part of any supported API.
1.36 + * If you write code that depends on this, you do so at your own risk.
1.37 + * This code and its internal interfaces are subject to change or
1.38 + * deletion without notice.</b>
1.39 + */
1.40 +public interface ByteCodes {
1.41 +
1.42 + /** Byte code instruction codes.
1.43 + */
1.44 + int illegal = -1,
1.45 + nop = 0,
1.46 + aconst_null = 1,
1.47 + iconst_m1 = 2,
1.48 + iconst_0 = 3,
1.49 + iconst_1 = 4,
1.50 + iconst_2 = 5,
1.51 + iconst_3 = 6,
1.52 + iconst_4 = 7,
1.53 + iconst_5 = 8,
1.54 + lconst_0 = 9,
1.55 + lconst_1 = 10,
1.56 + fconst_0 = 11,
1.57 + fconst_1 = 12,
1.58 + fconst_2 = 13,
1.59 + dconst_0 = 14,
1.60 + dconst_1 = 15,
1.61 + bipush = 16,
1.62 + sipush = 17,
1.63 + ldc1 = 18,
1.64 + ldc2 = 19,
1.65 + ldc2w = 20,
1.66 + iload = 21,
1.67 + lload = 22,
1.68 + fload = 23,
1.69 + dload = 24,
1.70 + aload = 25,
1.71 + iload_0 = 26,
1.72 + iload_1 = 27,
1.73 + iload_2 = 28,
1.74 + iload_3 = 29,
1.75 + lload_0 = 30,
1.76 + lload_1 = 31,
1.77 + lload_2 = 32,
1.78 + lload_3 = 33,
1.79 + fload_0 = 34,
1.80 + fload_1 = 35,
1.81 + fload_2 = 36,
1.82 + fload_3 = 37,
1.83 + dload_0 = 38,
1.84 + dload_1 = 39,
1.85 + dload_2 = 40,
1.86 + dload_3 = 41,
1.87 + aload_0 = 42,
1.88 + aload_1 = 43,
1.89 + aload_2 = 44,
1.90 + aload_3 = 45,
1.91 + iaload = 46,
1.92 + laload = 47,
1.93 + faload = 48,
1.94 + daload = 49,
1.95 + aaload = 50,
1.96 + baload = 51,
1.97 + caload = 52,
1.98 + saload = 53,
1.99 + istore = 54,
1.100 + lstore = 55,
1.101 + fstore = 56,
1.102 + dstore = 57,
1.103 + astore = 58,
1.104 + istore_0 = 59,
1.105 + istore_1 = 60,
1.106 + istore_2 = 61,
1.107 + istore_3 = 62,
1.108 + lstore_0 = 63,
1.109 + lstore_1 = 64,
1.110 + lstore_2 = 65,
1.111 + lstore_3 = 66,
1.112 + fstore_0 = 67,
1.113 + fstore_1 = 68,
1.114 + fstore_2 = 69,
1.115 + fstore_3 = 70,
1.116 + dstore_0 = 71,
1.117 + dstore_1 = 72,
1.118 + dstore_2 = 73,
1.119 + dstore_3 = 74,
1.120 + astore_0 = 75,
1.121 + astore_1 = 76,
1.122 + astore_2 = 77,
1.123 + astore_3 = 78,
1.124 + iastore = 79,
1.125 + lastore = 80,
1.126 + fastore = 81,
1.127 + dastore = 82,
1.128 + aastore = 83,
1.129 + bastore = 84,
1.130 + castore = 85,
1.131 + sastore = 86,
1.132 + pop = 87,
1.133 + pop2 = 88,
1.134 + dup = 89,
1.135 + dup_x1 = 90,
1.136 + dup_x2 = 91,
1.137 + dup2 = 92,
1.138 + dup2_x1 = 93,
1.139 + dup2_x2 = 94,
1.140 + swap = 95,
1.141 + iadd = 96,
1.142 + ladd = 97,
1.143 + fadd = 98,
1.144 + dadd = 99,
1.145 + isub = 100,
1.146 + lsub = 101,
1.147 + fsub = 102,
1.148 + dsub = 103,
1.149 + imul = 104,
1.150 + lmul = 105,
1.151 + fmul = 106,
1.152 + dmul = 107,
1.153 + idiv = 108,
1.154 + ldiv = 109,
1.155 + fdiv = 110,
1.156 + ddiv = 111,
1.157 + imod = 112,
1.158 + lmod = 113,
1.159 + fmod = 114,
1.160 + dmod = 115,
1.161 + ineg = 116,
1.162 + lneg = 117,
1.163 + fneg = 118,
1.164 + dneg = 119,
1.165 + ishl = 120,
1.166 + lshl = 121,
1.167 + ishr = 122,
1.168 + lshr = 123,
1.169 + iushr = 124,
1.170 + lushr = 125,
1.171 + iand = 126,
1.172 + land = 127,
1.173 + ior = 128,
1.174 + lor = 129,
1.175 + ixor = 130,
1.176 + lxor = 131,
1.177 + iinc = 132,
1.178 + i2l = 133,
1.179 + i2f = 134,
1.180 + i2d = 135,
1.181 + l2i = 136,
1.182 + l2f = 137,
1.183 + l2d = 138,
1.184 + f2i = 139,
1.185 + f2l = 140,
1.186 + f2d = 141,
1.187 + d2i = 142,
1.188 + d2l = 143,
1.189 + d2f = 144,
1.190 + int2byte = 145,
1.191 + int2char = 146,
1.192 + int2short = 147,
1.193 + lcmp = 148,
1.194 + fcmpl = 149,
1.195 + fcmpg = 150,
1.196 + dcmpl = 151,
1.197 + dcmpg = 152,
1.198 + ifeq = 153,
1.199 + ifne = 154,
1.200 + iflt = 155,
1.201 + ifge = 156,
1.202 + ifgt = 157,
1.203 + ifle = 158,
1.204 + if_icmpeq = 159,
1.205 + if_icmpne = 160,
1.206 + if_icmplt = 161,
1.207 + if_icmpge = 162,
1.208 + if_icmpgt = 163,
1.209 + if_icmple = 164,
1.210 + if_acmpeq = 165,
1.211 + if_acmpne = 166,
1.212 + goto_ = 167,
1.213 + jsr = 168,
1.214 + ret = 169,
1.215 + tableswitch = 170,
1.216 + lookupswitch = 171,
1.217 + ireturn = 172,
1.218 + lreturn = 173,
1.219 + freturn = 174,
1.220 + dreturn = 175,
1.221 + areturn = 176,
1.222 + return_ = 177,
1.223 + getstatic = 178,
1.224 + putstatic = 179,
1.225 + getfield = 180,
1.226 + putfield = 181,
1.227 + invokevirtual = 182,
1.228 + invokespecial = 183,
1.229 + invokestatic = 184,
1.230 + invokeinterface = 185,
1.231 + invokedynamic = 186,
1.232 + new_ = 187,
1.233 + newarray = 188,
1.234 + anewarray = 189,
1.235 + arraylength = 190,
1.236 + athrow = 191,
1.237 + checkcast = 192,
1.238 + instanceof_ = 193,
1.239 + monitorenter = 194,
1.240 + monitorexit = 195,
1.241 + wide = 196,
1.242 + multianewarray = 197,
1.243 + if_acmp_null = 198,
1.244 + if_acmp_nonnull = 199,
1.245 + goto_w = 200,
1.246 + jsr_w = 201,
1.247 + breakpoint = 202,
1.248 + ByteCodeCount = 203;
1.249 +
1.250 + /** Virtual instruction codes; used for constant folding.
1.251 + */
1.252 + int string_add = 256, // string +
1.253 + bool_not = 257, // boolean !
1.254 + bool_and = 258, // boolean &&
1.255 + bool_or = 259; // boolean ||
1.256 +
1.257 + /** Virtual opcodes; used for shifts with long shiftcount
1.258 + */
1.259 + int ishll = 270, // int shift left with long count
1.260 + lshll = 271, // long shift left with long count
1.261 + ishrl = 272, // int shift right with long count
1.262 + lshrl = 273, // long shift right with long count
1.263 + iushrl = 274, // int unsigned shift right with long count
1.264 + lushrl = 275; // long unsigned shift right with long count
1.265 +
1.266 + /** Virtual opcode for null reference checks
1.267 + */
1.268 + int nullchk = 276; // return operand if non-null,
1.269 + // otherwise throw NullPointerException.
1.270 +
1.271 + /** Virtual opcode for disallowed operations.
1.272 + */
1.273 + int error = 277;
1.274 +
1.275 + /** All conditional jumps come in pairs. To streamline the
1.276 + * treatment of jumps, we also introduce a negation of an
1.277 + * unconditional jump. That opcode happens to be jsr.
1.278 + */
1.279 + int dontgoto = jsr;
1.280 +
1.281 + /** Shift and mask constants for shifting prefix instructions.
1.282 + * a pair of instruction codes such as LCMP ; IFEQ is encoded
1.283 + * in Symtab as {@literal (LCMP << preShift) + IFEQ }.
1.284 + */
1.285 + int preShift = 9;
1.286 + int preMask = (1 << preShift) - 1;
1.287 +
1.288 + /** Type codes.
1.289 + */
1.290 + int INTcode = 0,
1.291 + LONGcode = 1,
1.292 + FLOATcode = 2,
1.293 + DOUBLEcode = 3,
1.294 + OBJECTcode = 4,
1.295 + BYTEcode = 5,
1.296 + CHARcode = 6,
1.297 + SHORTcode = 7,
1.298 + VOIDcode = 8,
1.299 + TypeCodeCount = 9;
1.300 +
1.301 + static final String[] typecodeNames = {
1.302 + "int",
1.303 + "long",
1.304 + "float",
1.305 + "double",
1.306 + "object",
1.307 + "byte",
1.308 + "char",
1.309 + "short",
1.310 + "void",
1.311 + "oops"
1.312 + };
1.313 +}
