jjg@46: /*
xdono@54:  * Copyright 2007-2008 Sun Microsystems, Inc.  All Rights Reserved.
jjg@46:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
jjg@46:  *
jjg@46:  * This code is free software; you can redistribute it and/or modify it
jjg@46:  * under the terms of the GNU General Public License version 2 only, as
jjg@46:  * published by the Free Software Foundation.  Sun designates this
jjg@46:  * particular file as subject to the "Classpath" exception as provided
jjg@46:  * by Sun in the LICENSE file that accompanied this code.
jjg@46:  *
jjg@46:  * This code is distributed in the hope that it will be useful, but WITHOUT
jjg@46:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
jjg@46:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
jjg@46:  * version 2 for more details (a copy is included in the LICENSE file that
jjg@46:  * accompanied this code).
jjg@46:  *
jjg@46:  * You should have received a copy of the GNU General Public License version
jjg@46:  * 2 along with this work; if not, write to the Free Software Foundation,
jjg@46:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
jjg@46:  *
jjg@46:  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
jjg@46:  * CA 95054 USA or visit www.sun.com if you need additional information or
jjg@46:  * have any questions.
jjg@46:  */
jjg@46: 
jjg@46: package com.sun.tools.classfile;
jjg@46: 
jjg@46: import java.util.HashMap;
jjg@46: 
jjg@46: /**
jjg@46:  * See JVMS3, section 6.
jjg@46:  *
jjg@46:  *  <p><b>This is NOT part of any API supported by Sun Microsystems.  If
jjg@46:  *  you write code that depends on this, you do so at your own risk.
jjg@46:  *  This code and its internal interfaces are subject to change or
jjg@46:  *  deletion without notice.</b>
jjg@46:  */
jjg@46: public class OpCodes {
jjg@46: 
jjg@46:     public static int opcLength(int opc) throws IllegalArgumentException {
jjg@46:         switch (opc >> 8) {
jjg@46:             case 0:
jjg@46:                 return opcLengthsTab[opc];
jjg@46:             case opc_wide:
jjg@46:                 switch (opc & 0xFF) {
jjg@46:                     case opc_aload:
jjg@46:                     case opc_astore:
jjg@46:                     case opc_fload:
jjg@46:                     case opc_fstore:
jjg@46:                     case opc_iload:
jjg@46:                     case opc_istore:
jjg@46:                     case opc_lload:
jjg@46:                     case opc_lstore:
jjg@46:                     case opc_dload:
jjg@46:                     case opc_dstore:
jjg@46:                     case opc_ret:
jjg@46:                         return 4;
jjg@46:                     case opc_iinc:
jjg@46:                         return 6;
jjg@46:                     default:
jjg@46:                         throw new IllegalArgumentException();
jjg@46:                 }
jjg@46:             case opc_nonpriv:
jjg@46:             case opc_priv:
jjg@46:                 return 2;
jjg@46:             default:
jjg@46:                 throw new IllegalArgumentException();
jjg@46:         }
jjg@46:     }
jjg@46: 
jjg@46:     public static String opcName(int opc) {
jjg@46:         try {
jjg@46:             switch (opc >> 8) {
jjg@46:                 case 0:
jjg@46:                     return opcNamesTab[opc];
jjg@46:                 case opc_wide:
jjg@46:                     {
jjg@46:                         String mnem = opcNamesTab[opc & 0xFF] + "_w";
jjg@46:                         if (mnemocodes.get(mnem) == null) {
jjg@46:                             return null; // non-existent opcode
jjg@46:                         }
jjg@46:                         return mnem;
jjg@46:                     }
jjg@46:                 case opc_nonpriv:
jjg@46:                     return opcExtNamesTab[opc & 0xFF];
jjg@46:                 case opc_priv:
jjg@46:                     return opcPrivExtNamesTab[opc & 0xFF];
jjg@46:                 default:
jjg@46:                     return null;
jjg@46:             }
jjg@46:         } catch (ArrayIndexOutOfBoundsException e) {
jjg@46:             switch (opc) {
jjg@46:                 case opc_nonpriv:
jjg@46:                     return "nonpriv";
jjg@46:                 case opc_priv:
jjg@46:                     return "priv";
jjg@46:                 default:
jjg@46:                     return null;
jjg@46:             }
jjg@46:         }
jjg@46:     }
jjg@46: 
jjg@46:     /* Opcodes */
jjg@46:     public static final int opc_dead                     = -2;
jjg@46:     public static final int opc_label                    = -1;
jjg@46:     public static final int opc_nop                      = 0;
jjg@46:     public static final int opc_aconst_null              = 1;
jjg@46:     public static final int opc_iconst_m1                = 2;
jjg@46:     public static final int opc_iconst_0                 = 3;
jjg@46:     public static final int opc_iconst_1                 = 4;
jjg@46:     public static final int opc_iconst_2                 = 5;
jjg@46:     public static final int opc_iconst_3                 = 6;
jjg@46:     public static final int opc_iconst_4                 = 7;
jjg@46:     public static final int opc_iconst_5                 = 8;
jjg@46:     public static final int opc_lconst_0                 = 9;
jjg@46:     public static final int opc_lconst_1                 = 10;
jjg@46:     public static final int opc_fconst_0                 = 11;
jjg@46:     public static final int opc_fconst_1                 = 12;
jjg@46:     public static final int opc_fconst_2                 = 13;
jjg@46:     public static final int opc_dconst_0                 = 14;
jjg@46:     public static final int opc_dconst_1                 = 15;
jjg@46:     public static final int opc_bipush                   = 16;
jjg@46:     public static final int opc_sipush                   = 17;
jjg@46:     public static final int opc_ldc                      = 18;
jjg@46:     public static final int opc_ldc_w                    = 19;
jjg@46:     public static final int opc_ldc2_w                   = 20;
jjg@46:     public static final int opc_iload                    = 21;
jjg@46:     public static final int opc_lload                    = 22;
jjg@46:     public static final int opc_fload                    = 23;
jjg@46:     public static final int opc_dload                    = 24;
jjg@46:     public static final int opc_aload                    = 25;
jjg@46:     public static final int opc_iload_0                  = 26;
jjg@46:     public static final int opc_iload_1                  = 27;
jjg@46:     public static final int opc_iload_2                  = 28;
jjg@46:     public static final int opc_iload_3                  = 29;
jjg@46:     public static final int opc_lload_0                  = 30;
jjg@46:     public static final int opc_lload_1                  = 31;
jjg@46:     public static final int opc_lload_2                  = 32;
jjg@46:     public static final int opc_lload_3                  = 33;
jjg@46:     public static final int opc_fload_0                  = 34;
jjg@46:     public static final int opc_fload_1                  = 35;
jjg@46:     public static final int opc_fload_2                  = 36;
jjg@46:     public static final int opc_fload_3                  = 37;
jjg@46:     public static final int opc_dload_0                  = 38;
jjg@46:     public static final int opc_dload_1                  = 39;
jjg@46:     public static final int opc_dload_2                  = 40;
jjg@46:     public static final int opc_dload_3                  = 41;
jjg@46:     public static final int opc_aload_0                  = 42;
jjg@46:     public static final int opc_aload_1                  = 43;
jjg@46:     public static final int opc_aload_2                  = 44;
jjg@46:     public static final int opc_aload_3                  = 45;
jjg@46:     public static final int opc_iaload                   = 46;
jjg@46:     public static final int opc_laload                   = 47;
jjg@46:     public static final int opc_faload                   = 48;
jjg@46:     public static final int opc_daload                   = 49;
jjg@46:     public static final int opc_aaload                   = 50;
jjg@46:     public static final int opc_baload                   = 51;
jjg@46:     public static final int opc_caload                   = 52;
jjg@46:     public static final int opc_saload                   = 53;
jjg@46:     public static final int opc_istore                   = 54;
jjg@46:     public static final int opc_lstore                   = 55;
jjg@46:     public static final int opc_fstore                   = 56;
jjg@46:     public static final int opc_dstore                   = 57;
jjg@46:     public static final int opc_astore                   = 58;
jjg@46:     public static final int opc_istore_0                 = 59;
jjg@46:     public static final int opc_istore_1                 = 60;
jjg@46:     public static final int opc_istore_2                 = 61;
jjg@46:     public static final int opc_istore_3                 = 62;
jjg@46:     public static final int opc_lstore_0                 = 63;
jjg@46:     public static final int opc_lstore_1                 = 64;
jjg@46:     public static final int opc_lstore_2                 = 65;
jjg@46:     public static final int opc_lstore_3                 = 66;
jjg@46:     public static final int opc_fstore_0                 = 67;
jjg@46:     public static final int opc_fstore_1                 = 68;
jjg@46:     public static final int opc_fstore_2                 = 69;
jjg@46:     public static final int opc_fstore_3                 = 70;
jjg@46:     public static final int opc_dstore_0                 = 71;
jjg@46:     public static final int opc_dstore_1                 = 72;
jjg@46:     public static final int opc_dstore_2                 = 73;
jjg@46:     public static final int opc_dstore_3                 = 74;
jjg@46:     public static final int opc_astore_0                 = 75;
jjg@46:     public static final int opc_astore_1                 = 76;
jjg@46:     public static final int opc_astore_2                 = 77;
jjg@46:     public static final int opc_astore_3                 = 78;
jjg@46:     public static final int opc_iastore                  = 79;
jjg@46:     public static final int opc_lastore                  = 80;
jjg@46:     public static final int opc_fastore                  = 81;
jjg@46:     public static final int opc_dastore                  = 82;
jjg@46:     public static final int opc_aastore                  = 83;
jjg@46:     public static final int opc_bastore                  = 84;
jjg@46:     public static final int opc_castore                  = 85;
jjg@46:     public static final int opc_sastore                  = 86;
jjg@46:     public static final int opc_pop                      = 87;
jjg@46:     public static final int opc_pop2                     = 88;
jjg@46:     public static final int opc_dup                      = 89;
jjg@46:     public static final int opc_dup_x1                   = 90;
jjg@46:     public static final int opc_dup_x2                   = 91;
jjg@46:     public static final int opc_dup2                     = 92;
jjg@46:     public static final int opc_dup2_x1                  = 93;
jjg@46:     public static final int opc_dup2_x2                  = 94;
jjg@46:     public static final int opc_swap                     = 95;
jjg@46:     public static final int opc_iadd                     = 96;
jjg@46:     public static final int opc_ladd                     = 97;
jjg@46:     public static final int opc_fadd                     = 98;
jjg@46:     public static final int opc_dadd                     = 99;
jjg@46:     public static final int opc_isub                     = 100;
jjg@46:     public static final int opc_lsub                     = 101;
jjg@46:     public static final int opc_fsub                     = 102;
jjg@46:     public static final int opc_dsub                     = 103;
jjg@46:     public static final int opc_imul                     = 104;
jjg@46:     public static final int opc_lmul                     = 105;
jjg@46:     public static final int opc_fmul                     = 106;
jjg@46:     public static final int opc_dmul                     = 107;
jjg@46:     public static final int opc_idiv                     = 108;
jjg@46:     public static final int opc_ldiv                     = 109;
jjg@46:     public static final int opc_fdiv                     = 110;
jjg@46:     public static final int opc_ddiv                     = 111;
jjg@46:     public static final int opc_irem                     = 112;
jjg@46:     public static final int opc_lrem                     = 113;
jjg@46:     public static final int opc_frem                     = 114;
jjg@46:     public static final int opc_drem                     = 115;
jjg@46:     public static final int opc_ineg                     = 116;
jjg@46:     public static final int opc_lneg                     = 117;
jjg@46:     public static final int opc_fneg                     = 118;
jjg@46:     public static final int opc_dneg                     = 119;
jjg@46:     public static final int opc_ishl                     = 120;
jjg@46:     public static final int opc_lshl                     = 121;
jjg@46:     public static final int opc_ishr                     = 122;
jjg@46:     public static final int opc_lshr                     = 123;
jjg@46:     public static final int opc_iushr                    = 124;
jjg@46:     public static final int opc_lushr                    = 125;
jjg@46:     public static final int opc_iand                     = 126;
jjg@46:     public static final int opc_land                     = 127;
jjg@46:     public static final int opc_ior                      = 128;
jjg@46:     public static final int opc_lor                      = 129;
jjg@46:     public static final int opc_ixor                     = 130;
jjg@46:     public static final int opc_lxor                     = 131;
jjg@46:     public static final int opc_iinc                     = 132;
jjg@46:     public static final int opc_i2l                      = 133;
jjg@46:     public static final int opc_i2f                      = 134;
jjg@46:     public static final int opc_i2d                      = 135;
jjg@46:     public static final int opc_l2i                      = 136;
jjg@46:     public static final int opc_l2f                      = 137;
jjg@46:     public static final int opc_l2d                      = 138;
jjg@46:     public static final int opc_f2i                      = 139;
jjg@46:     public static final int opc_f2l                      = 140;
jjg@46:     public static final int opc_f2d                      = 141;
jjg@46:     public static final int opc_d2i                      = 142;
jjg@46:     public static final int opc_d2l                      = 143;
jjg@46:     public static final int opc_d2f                      = 144;
jjg@46:     public static final int opc_i2b                      = 145;
jjg@46:     public static final int opc_int2byte                 = 145;
jjg@46:     public static final int opc_i2c                      = 146;
jjg@46:     public static final int opc_int2char                 = 146;
jjg@46:     public static final int opc_i2s                      = 147;
jjg@46:     public static final int opc_int2short                = 147;
jjg@46:     public static final int opc_lcmp                     = 148;
jjg@46:     public static final int opc_fcmpl                    = 149;
jjg@46:     public static final int opc_fcmpg                    = 150;
jjg@46:     public static final int opc_dcmpl                    = 151;
jjg@46:     public static final int opc_dcmpg                    = 152;
jjg@46:     public static final int opc_ifeq                     = 153;
jjg@46:     public static final int opc_ifne                     = 154;
jjg@46:     public static final int opc_iflt                     = 155;
jjg@46:     public static final int opc_ifge                     = 156;
jjg@46:     public static final int opc_ifgt                     = 157;
jjg@46:     public static final int opc_ifle                     = 158;
jjg@46:     public static final int opc_if_icmpeq                = 159;
jjg@46:     public static final int opc_if_icmpne                = 160;
jjg@46:     public static final int opc_if_icmplt                = 161;
jjg@46:     public static final int opc_if_icmpge                = 162;
jjg@46:     public static final int opc_if_icmpgt                = 163;
jjg@46:     public static final int opc_if_icmple                = 164;
jjg@46:     public static final int opc_if_acmpeq                = 165;
jjg@46:     public static final int opc_if_acmpne                = 166;
jjg@46:     public static final int opc_goto                     = 167;
jjg@46:     public static final int opc_jsr                      = 168;
jjg@46:     public static final int opc_ret                      = 169;
jjg@46:     public static final int opc_tableswitch              = 170;
jjg@46:     public static final int opc_lookupswitch             = 171;
jjg@46:     public static final int opc_ireturn                  = 172;
jjg@46:     public static final int opc_lreturn                  = 173;
jjg@46:     public static final int opc_freturn                  = 174;
jjg@46:     public static final int opc_dreturn                  = 175;
jjg@46:     public static final int opc_areturn                  = 176;
jjg@46:     public static final int opc_return                   = 177;
jjg@46:     public static final int opc_getstatic                = 178;
jjg@46:     public static final int opc_putstatic                = 179;
jjg@46:     public static final int opc_getfield                 = 180;
jjg@46:     public static final int opc_putfield                 = 181;
jjg@46:     public static final int opc_invokevirtual            = 182;
jjg@46:     public static final int opc_invokenonvirtual         = 183;
jjg@46:     public static final int opc_invokespecial            = 183;
jjg@46:     public static final int opc_invokestatic             = 184;
jjg@46:     public static final int opc_invokeinterface          = 185;
jjg@46: //  public static final int opc_xxxunusedxxx             = 186;
jjg@46:     public static final int opc_new                      = 187;
jjg@46:     public static final int opc_newarray                 = 188;
jjg@46:     public static final int opc_anewarray                = 189;
jjg@46:     public static final int opc_arraylength              = 190;
jjg@46:     public static final int opc_athrow                   = 191;
jjg@46:     public static final int opc_checkcast                = 192;
jjg@46:     public static final int opc_instanceof               = 193;
jjg@46:     public static final int opc_monitorenter             = 194;
jjg@46:     public static final int opc_monitorexit              = 195;
jjg@46:     public static final int opc_wide                     = 196;
jjg@46:     public static final int opc_multianewarray           = 197;
jjg@46:     public static final int opc_ifnull                   = 198;
jjg@46:     public static final int opc_ifnonnull                = 199;
jjg@46:     public static final int opc_goto_w                   = 200;
jjg@46:     public static final int opc_jsr_w                    = 201;
jjg@46: 
jjg@46:     /* Pseudo-instructions */
jjg@46:     public static final int opc_bytecode                 = 203;
jjg@46:     public static final int opc_try                      = 204;
jjg@46:     public static final int opc_endtry                   = 205;
jjg@46:     public static final int opc_catch                    = 206;
jjg@46:     public static final int opc_var                      = 207;
jjg@46:     public static final int opc_endvar                   = 208;
jjg@46:     public static final int opc_localsmap                = 209;
jjg@46:     public static final int opc_stackmap                 = 210;
jjg@46: 
jjg@46:     /* PicoJava prefixes */
jjg@46:     public static final int opc_nonpriv                  = 254;
jjg@46:     public static final int opc_priv                     = 255;
jjg@46: 
jjg@46:     /* Wide instructions */
jjg@46:     public static final int opc_iload_w         = (opc_wide << 8 ) | opc_iload;
jjg@46:     public static final int opc_lload_w         = (opc_wide << 8 ) | opc_lload;
jjg@46:     public static final int opc_fload_w         = (opc_wide << 8 ) | opc_fload;
jjg@46:     public static final int opc_dload_w         = (opc_wide << 8 ) | opc_dload;
jjg@46:     public static final int opc_aload_w         = (opc_wide << 8 ) | opc_aload;
jjg@46:     public static final int opc_istore_w        = (opc_wide << 8 ) | opc_istore;
jjg@46:     public static final int opc_lstore_w        = (opc_wide << 8 ) | opc_lstore;
jjg@46:     public static final int opc_fstore_w        = (opc_wide << 8 ) | opc_fstore;
jjg@46:     public static final int opc_dstore_w        = (opc_wide << 8 ) | opc_dstore;
jjg@46:     public static final int opc_astore_w        = (opc_wide << 8 ) | opc_astore;
jjg@46:     public static final int opc_ret_w           = (opc_wide << 8 ) | opc_ret;
jjg@46:     public static final int opc_iinc_w          = (opc_wide << 8 ) | opc_iinc;
jjg@46: 
jjg@46:     /* Opcode Names */
jjg@46:     private static final String opcNamesTab[] = {
jjg@46:         "nop",
jjg@46:         "aconst_null",
jjg@46:         "iconst_m1",
jjg@46:         "iconst_0",
jjg@46:         "iconst_1",
jjg@46:         "iconst_2",
jjg@46:         "iconst_3",
jjg@46:         "iconst_4",
jjg@46:         "iconst_5",
jjg@46:         "lconst_0",
jjg@46:         "lconst_1",
jjg@46:         "fconst_0",
jjg@46:         "fconst_1",
jjg@46:         "fconst_2",
jjg@46:         "dconst_0",
jjg@46:         "dconst_1",
jjg@46:         "bipush",
jjg@46:         "sipush",
jjg@46:         "ldc",
jjg@46:         "ldc_w",
jjg@46:         "ldc2_w",
jjg@46:         "iload",
jjg@46:         "lload",
jjg@46:         "fload",
jjg@46:         "dload",
jjg@46:         "aload",
jjg@46:         "iload_0",
jjg@46:         "iload_1",
jjg@46:         "iload_2",
jjg@46:         "iload_3",
jjg@46:         "lload_0",
jjg@46:         "lload_1",
jjg@46:         "lload_2",
jjg@46:         "lload_3",
jjg@46:         "fload_0",
jjg@46:         "fload_1",
jjg@46:         "fload_2",
jjg@46:         "fload_3",
jjg@46:         "dload_0",
jjg@46:         "dload_1",
jjg@46:         "dload_2",
jjg@46:         "dload_3",
jjg@46:         "aload_0",
jjg@46:         "aload_1",
jjg@46:         "aload_2",
jjg@46:         "aload_3",
jjg@46:         "iaload",
jjg@46:         "laload",
jjg@46:         "faload",
jjg@46:         "daload",
jjg@46:         "aaload",
jjg@46:         "baload",
jjg@46:         "caload",
jjg@46:         "saload",
jjg@46:         "istore",
jjg@46:         "lstore",
jjg@46:         "fstore",
jjg@46:         "dstore",
jjg@46:         "astore",
jjg@46:         "istore_0",
jjg@46:         "istore_1",
jjg@46:         "istore_2",
jjg@46:         "istore_3",
jjg@46:         "lstore_0",
jjg@46:         "lstore_1",
jjg@46:         "lstore_2",
jjg@46:         "lstore_3",
jjg@46:         "fstore_0",
jjg@46:         "fstore_1",
jjg@46:         "fstore_2",
jjg@46:         "fstore_3",
jjg@46:         "dstore_0",
jjg@46:         "dstore_1",
jjg@46:         "dstore_2",
jjg@46:         "dstore_3",
jjg@46:         "astore_0",
jjg@46:         "astore_1",
jjg@46:         "astore_2",
jjg@46:         "astore_3",
jjg@46:         "iastore",
jjg@46:         "lastore",
jjg@46:         "fastore",
jjg@46:         "dastore",
jjg@46:         "aastore",
jjg@46:         "bastore",
jjg@46:         "castore",
jjg@46:         "sastore",
jjg@46:         "pop",
jjg@46:         "pop2",
jjg@46:         "dup",
jjg@46:         "dup_x1",
jjg@46:         "dup_x2",
jjg@46:         "dup2",
jjg@46:         "dup2_x1",
jjg@46:         "dup2_x2",
jjg@46:         "swap",
jjg@46:         "iadd",
jjg@46:         "ladd",
jjg@46:         "fadd",
jjg@46:         "dadd",
jjg@46:         "isub",
jjg@46:         "lsub",
jjg@46:         "fsub",
jjg@46:         "dsub",
jjg@46:         "imul",
jjg@46:         "lmul",
jjg@46:         "fmul",
jjg@46:         "dmul",
jjg@46:         "idiv",
jjg@46:         "ldiv",
jjg@46:         "fdiv",
jjg@46:         "ddiv",
jjg@46:         "irem",
jjg@46:         "lrem",
jjg@46:         "frem",
jjg@46:         "drem",
jjg@46:         "ineg",
jjg@46:         "lneg",
jjg@46:         "fneg",
jjg@46:         "dneg",
jjg@46:         "ishl",
jjg@46:         "lshl",
jjg@46:         "ishr",
jjg@46:         "lshr",
jjg@46:         "iushr",
jjg@46:         "lushr",
jjg@46:         "iand",
jjg@46:         "land",
jjg@46:         "ior",
jjg@46:         "lor",
jjg@46:         "ixor",
jjg@46:         "lxor",
jjg@46:         "iinc",
jjg@46:         "i2l",
jjg@46:         "i2f",
jjg@46:         "i2d",
jjg@46:         "l2i",
jjg@46:         "l2f",
jjg@46:         "l2d",
jjg@46:         "f2i",
jjg@46:         "f2l",
jjg@46:         "f2d",
jjg@46:         "d2i",
jjg@46:         "d2l",
jjg@46:         "d2f",
jjg@46:         "i2b",
jjg@46:         "i2c",
jjg@46:         "i2s",
jjg@46:         "lcmp",
jjg@46:         "fcmpl",
jjg@46:         "fcmpg",
jjg@46:         "dcmpl",
jjg@46:         "dcmpg",
jjg@46:         "ifeq",
jjg@46:         "ifne",
jjg@46:         "iflt",
jjg@46:         "ifge",
jjg@46:         "ifgt",
jjg@46:         "ifle",
jjg@46:         "if_icmpeq",
jjg@46:         "if_icmpne",
jjg@46:         "if_icmplt",
jjg@46:         "if_icmpge",
jjg@46:         "if_icmpgt",
jjg@46:         "if_icmple",
jjg@46:         "if_acmpeq",
jjg@46:         "if_acmpne",
jjg@46:         "goto",
jjg@46:         "jsr",
jjg@46:         "ret",
jjg@46:         "tableswitch",
jjg@46:         "lookupswitch",
jjg@46:         "ireturn",
jjg@46:         "lreturn",
jjg@46:         "freturn",
jjg@46:         "dreturn",
jjg@46:         "areturn",
jjg@46:         "return",
jjg@46:         "getstatic",
jjg@46:         "putstatic",
jjg@46:         "getfield",
jjg@46:         "putfield",
jjg@46:         "invokevirtual",
jjg@46:         "invokespecial",        //      was "invokenonvirtual",
jjg@46:         "invokestatic",
jjg@46:         "invokeinterface",
jjg@46:         "bytecode 186",         //"xxxunusedxxx",
jjg@46:         "new",
jjg@46:         "newarray",
jjg@46:         "anewarray",
jjg@46:         "arraylength",
jjg@46:         "athrow",
jjg@46:         "checkcast",
jjg@46:         "instanceof",
jjg@46:         "monitorenter",
jjg@46:         "monitorexit",
jjg@46:          null, // "wide",
jjg@46:         "multianewarray",
jjg@46:         "ifnull",
jjg@46:         "ifnonnull",
jjg@46:         "goto_w",
jjg@46:         "jsr_w",
jjg@46:         "bytecode 202",         // "breakpoint",
jjg@46:         "bytecode",
jjg@46:         "try",
jjg@46:         "endtry",
jjg@46:         "catch",
jjg@46:         "var",
jjg@46:         "endvar",
jjg@46:         "locals_map",
jjg@46:         "stack_map"
jjg@46:     };
jjg@46: 
jjg@46:     /* Opcode Lengths */
jjg@46:     private static final int opcLengthsTab[] = {
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         2,
jjg@46:         3,
jjg@46:         2,
jjg@46:         3,
jjg@46:         3,
jjg@46:         2,
jjg@46:         2,
jjg@46:         2,
jjg@46:         2,
jjg@46:         2,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         2,
jjg@46:         2,
jjg@46:         2,
jjg@46:         2,
jjg@46:         2,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         3,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         3,
jjg@46:         3,
jjg@46:         3,
jjg@46:         3,
jjg@46:         3,
jjg@46:         3,
jjg@46:         3,
jjg@46:         3,
jjg@46:         3,
jjg@46:         3,
jjg@46:         3,
jjg@46:         3,
jjg@46:         3,
jjg@46:         3,
jjg@46:         3,
jjg@46:         3,
jjg@46:         2,
jjg@46:         99,
jjg@46:         99,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         1,
jjg@46:         3,
jjg@46:         3,
jjg@46:         3,
jjg@46:         3,
jjg@46:         3,
jjg@46:         3,
jjg@46:         3,
jjg@46:         5,
jjg@46:         0,
jjg@46:         3,
jjg@46:         2,
jjg@46:         3,
jjg@46:         1,
jjg@46:         1,
jjg@46:         3,
jjg@46:         3,
jjg@46:         1,
jjg@46:         1,
jjg@46:         0, // wide
jjg@46:         4,
jjg@46:         3,
jjg@46:         3,
jjg@46:         5,
jjg@46:         5,
jjg@46:         1,
jjg@46:         1, 0, 0, 0, 0, 0 // pseudo
jjg@46:     };
jjg@46: 
jjg@46:     /* Type codes, used in newarray opcode */
jjg@46:     public static final int T_CLASS                      = 0x00000002;
jjg@46:     public static final int T_BOOLEAN                    = 0x00000004;
jjg@46:     public static final int T_CHAR                       = 0x00000005;
jjg@46:     public static final int T_FLOAT                      = 0x00000006;
jjg@46:     public static final int T_DOUBLE                     = 0x00000007;
jjg@46:     public static final int T_BYTE                       = 0x00000008;
jjg@46:     public static final int T_SHORT                      = 0x00000009;
jjg@46:     public static final int T_INT                        = 0x0000000a;
jjg@46:     public static final int T_LONG                       = 0x0000000b;
jjg@46: 
jjg@46:     private static HashMap<String,Integer> mnemocodes = new HashMap<String,Integer>(301, 0.5f);
jjg@46:     private static String opcExtNamesTab[]=new String[128];
jjg@46:     private static String opcPrivExtNamesTab[]=new String[128];
jjg@46: 
jjg@46:     private static void defineNonPriv(int opc, String mnem) {
jjg@46:         mnemocodes.put(opcExtNamesTab[opc] = mnem, opc_nonpriv * 256 + opc);
jjg@46:     }
jjg@46: 
jjg@46:     private static void definePriv(int opc, String mnem) {
jjg@46:         mnemocodes.put(opcPrivExtNamesTab[opc] = "priv_" + mnem, opc_priv * 256 + opc);
jjg@46:     }
jjg@46: 
jjg@46:     private static void defineExt(int opc, String mnem) {
jjg@46:         defineNonPriv(opc, mnem);
jjg@46:         definePriv(opc, mnem);
jjg@46:     }
jjg@46: 
jjg@46:     static {
jjg@46:         for (int i = 0; i < opc_wide; i++) {
jjg@46:             mnemocodes.put(opcNamesTab[i], i);
jjg@46:         }
jjg@46:         for (int i = opc_wide + 1; i < opcNamesTab.length; i++) {
jjg@46:             mnemocodes.put(opcNamesTab[i], i);
jjg@46:         }
jjg@46:         mnemocodes.put("invokenonvirtual", opc_invokespecial);
jjg@46: 
jjg@46:         mnemocodes.put("iload_w", opc_iload_w);
jjg@46:         mnemocodes.put("lload_w", opc_lload_w);
jjg@46:         mnemocodes.put("fload_w", opc_fload_w);
jjg@46:         mnemocodes.put("dload_w", opc_dload_w);
jjg@46:         mnemocodes.put("aload_w", opc_aload_w);
jjg@46:         mnemocodes.put("istore_w", opc_istore_w);
jjg@46:         mnemocodes.put("lstore_w", opc_lstore_w);
jjg@46:         mnemocodes.put("fstore_w", opc_fstore_w);
jjg@46:         mnemocodes.put("dstore_w", opc_dstore_w);
jjg@46:         mnemocodes.put("astore_w", opc_astore_w);
jjg@46:         mnemocodes.put("ret_w", opc_ret_w);
jjg@46:         mnemocodes.put("iinc_w", opc_iinc_w);
jjg@46: 
jjg@46:         mnemocodes.put("nonpriv", opc_nonpriv);
jjg@46:         mnemocodes.put("priv", opc_priv);
jjg@46: 
jjg@46:         defineExt(0, "load_ubyte");
jjg@46:         defineExt(1, "load_byte");
jjg@46:         defineExt(2, "load_char");
jjg@46:         defineExt(3, "load_short");
jjg@46:         defineExt(4, "load_word");
jjg@46:         defineExt(10, "load_char_oe");
jjg@46:         defineExt(11, "load_short_oe");
jjg@46:         defineExt(12, "load_word_oe");
jjg@46:         defineExt(16, "ncload_ubyte");
jjg@46:         defineExt(17, "ncload_byte");
jjg@46:         defineExt(18, "ncload_char");
jjg@46:         defineExt(19, "ncload_short");
jjg@46:         defineExt(20, "ncload_word");
jjg@46:         defineExt(26, "ncload_char_oe");
jjg@46:         defineExt(27, "ncload_short_oe");
jjg@46:         defineExt(28, "ncload_word_oe");
jjg@46:         defineExt(30, "cache_flush");
jjg@46:         defineExt(32, "store_byte");
jjg@46:         defineExt(34, "store_short");
jjg@46:         defineExt(36, "store_word");
jjg@46:         defineExt(42, "store_short_oe");
jjg@46:         defineExt(44, "store_word_oe");
jjg@46:         defineExt(48, "ncstore_byte");
jjg@46:         defineExt(50, "ncstore_short");
jjg@46:         defineExt(52, "ncstore_word");
jjg@46:         defineExt(58, "ncstore_short_oe");
jjg@46:         defineExt(60, "ncstore_word_oe");
jjg@46:         defineExt(62, "zero_line");
jjg@46:         defineNonPriv(5, "ret_from_sub");
jjg@46:         defineNonPriv(63, "enter_sync_method");
jjg@46:         definePriv(5, "ret_from_trap");
jjg@46:         definePriv(6, "read_dcache_tag");
jjg@46:         definePriv(7, "read_dcache_data");
jjg@46:         definePriv(14, "read_icache_tag");
jjg@46:         definePriv(15, "read_icache_data");
jjg@46:         definePriv(22, "powerdown");
jjg@46:         definePriv(23, "read_scache_data");
jjg@46:         definePriv(31, "cache_index_flush");
jjg@46:         definePriv(38, "write_dcache_tag");
jjg@46:         definePriv(39, "write_dcache_data");
jjg@46:         definePriv(46, "write_icache_tag");
jjg@46:         definePriv(47, "write_icache_data");
jjg@46:         definePriv(54, "reset");
jjg@46:         definePriv(55, "write_scache_data");
jjg@46:         for (int i = 0; i < 32; i++) {
jjg@46:             definePriv(i + 64, "read_reg_" + i);
jjg@46:         }
jjg@46:         for (int i = 0; i < 32; i++) {
jjg@46:             definePriv(i + 96, "write_reg_" + i);
jjg@46:         }
jjg@46:     }
jjg@46: }