Glassfish example source code file (VMOp.java)

This example Glassfish source code file (VMOp.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

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a, d, f, i, i, ii, j, j, jj, noi18n, noi18n, string, vmop, vmop

The Glassfish VMOp.java source code

/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 1997-2010 Oracle and/or its affiliates. All rights reserved.
 *
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License.  You can
 * obtain a copy of the License at
 * https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
 * or packager/legal/LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
 *
 * When distributing the software, include this License Header Notice in each
 * file and include the License file at packager/legal/LICENSE.txt.
 *
 * GPL Classpath Exception:
 * Oracle designates this particular file as subject to the "Classpath"
 * exception as provided by Oracle in the GPL Version 2 section of the License
 * file that accompanied this code.
 *
 * Modifications:
 * If applicable, add the following below the License Header, with the fields
 * enclosed by brackets [] replaced by your own identifying information:
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 *
 * Contributor(s):
 * If you wish your version of this file to be governed by only the CDDL or
 * only the GPL Version 2, indicate your decision by adding "[Contributor]
 * elects to include this software in this distribution under the [CDDL or GPL
 * Version 2] license."  If you don't indicate a single choice of license, a
 * recipient has the option to distribute your version of this file under
 * either the CDDL, the GPL Version 2 or to extend the choice of license to
 * its licensees as provided above.  However, if you add GPL Version 2 code
 * and therefore, elected the GPL Version 2 license, then the option applies
 * only if the new code is made subject to such option by the copyright
 * holder.
 */

package com.sun.jdo.api.persistence.enhancer.classfile;

/**
 * Description of the VM opcodes
 */
public class VMOp implements VMConstants {
  /* The opcode value */
  private int opcodeValue;

  /* The name of the opcode */
  private String opcodeName;

  /* The number of stack argument words */
  private int stackArgs;

  /* The number of stack result words */
  private int stackResults;

    /* The "type" signature of the stack argument words *///NOI18N
  private String stackArgTypes;

    /* The "type" signature of the stack result words *///NOI18N
  private String stackResultTypes;

  /* public accessors */

  /**
   * Return the opcode value 
   */
  final public int opcode() {
    return opcodeValue;
  }

  /**
   * Return the opcode name
   */
  final public String name() {
    return opcodeName;
  }

  /**
   * Return the number of words of stack arguments expected by this operation.
   * If the number is not a fixed value, return -1;
   */
  final public int nStackArgs() {
    return stackArgs;
  }

  /**
   * Return the number of words of stack results produced by this operation.
   * If the number is not a fixed value, return -1;
   */
  final public int nStackResults() {
    return stackResults;
  }

  /**
   * Return the type descriptor for the stack arguments to the operation.
   */
  final public String argTypes() {
    return stackArgTypes;
  }

  /**
   * Return the type descriptor for the stack results of the operation.
   */
  final public String resultTypes() {
    return stackResultTypes;
  }

  /**
   * constructor for a VMOp
   */
   
  public VMOp(int theOpcode, String theOpcodeName, int nArgs, int nResults,
	      String argDescr, String resultDescr) {
    opcodeValue = theOpcode;
    opcodeName = theOpcodeName;
    stackArgs = nArgs;
    stackResults = nResults;
    stackArgTypes = argDescr;
    stackResultTypes = resultDescr;
  }

  /* package local methods */

  static VMOp[] ops =  {
    /* | no change*/
      new VMOp(opc_nop, "nop", 0, 0, "", ""),//NOI18N
    /* | ... -> ..., null */
      new VMOp(opc_aconst_null, "aconst_null", 0, 1, "", "A"),//NOI18N
    /* | ... -> ..., -1 */
      new VMOp(opc_iconst_m1, "iconst_m1", 0, 1, "", "I"),//NOI18N
    /* | ... -> ..., 0 */
      new VMOp(opc_iconst_0, "iconst_0", 0, 1, "", "I"),//NOI18N
    /* | ... -> ..., 1 */
      new VMOp(opc_iconst_1, "iconst_1", 0, 1, "", "I"),//NOI18N
    /* | ... -> ..., 2 */
      new VMOp(opc_iconst_2, "iconst_2", 0, 1, "", "I"),//NOI18N
    /* | ... -> ..., 3 */
      new VMOp(opc_iconst_3, "iconst_3", 0, 1, "", "I"),//NOI18N
    /* | ... -> ..., 4 */
      new VMOp(opc_iconst_4, "iconst_4", 0, 1, "", "I"),//NOI18N
    /* | ... -> ..., 5 */
      new VMOp(opc_iconst_5, "iconst_5", 0, 1, "", "I"),//NOI18N
    /* | ... -> ..., 0<high/low>, 0 */
      new VMOp(opc_lconst_0, "lconst_0", 0, 2, "", "J"),//NOI18N
    /* | ... -> ..., 1<high/low>, 1 */
      new VMOp(opc_lconst_1, "lconst_1", 0, 2, "", "J"),//NOI18N
    /* | ... -> ..., 0.0f */
      new VMOp(opc_fconst_0, "fconst_0", 0, 1, "", "F"),//NOI18N
    /* | ... -> ..., 1.0f */
      new VMOp(opc_fconst_1, "fconst_1", 0, 1, "", "F"),//NOI18N
    /* | ... -> ..., 2.0f */
      new VMOp(opc_fconst_2, "fconst_2", 0, 1, "", "F"),//NOI18N
    /* | ... -> ..., 0.0<high/low>, 0.0 */
      new VMOp(opc_dconst_0, "dconst_0", 0, 2, "", "D"),//NOI18N
    /* | ... -> ..., 1.0<high/low>, 1.0 */
      new VMOp(opc_dconst_1, "dconst_1", 0, 2, "", "D"),//NOI18N
    /* byte1 | ... => ..., value */
      new VMOp(opc_bipush, "bipush", 0, 1, "", "I"),//NOI18N
    /* byte1 byte2 | ... => ..., value */
      new VMOp(opc_sipush, "sipush", 0, 1, "", "I"),//NOI18N
    /* indexbyte1 | ... => ..., item */
      new VMOp(opc_ldc, "ldc", 0, 1, "", "W"),//NOI18N
    /* indexbyte1 indexbyte2 | ... => ..., item */
      new VMOp(opc_ldc_w, "ldc_w", 0, 1, "", "W"),//NOI18N
    /* indexbyte1 indexbyte2 | ... => ..., item1, item2 */
      new VMOp(opc_ldc2_w, "ldc2_w", 0, 2, "", "X"),//NOI18N
    /* vindex | ... => ..., value<vindex> */
      new VMOp(opc_iload, "iload", 0, 1, "", "I"),//NOI18N
    /* vindex | ... => ..., value<vindex>, value */
      new VMOp(opc_lload, "lload", 0, 2, "", "J"),//NOI18N
    /* vindex | ... => ..., value<vindex> */
      new VMOp(opc_fload, "fload", 0, 1, "", "F"),//NOI18N
    /* vindex | ... => ..., value<vindex>, value */
      new VMOp(opc_dload, "dload", 0, 2, "", "D"),//NOI18N
    /* vindex | ... => ..., value<vindex> */
      new VMOp(opc_aload, "aload", 0, 1, "", "A"),//NOI18N
    /* | ... => ..., value<0> */
      new VMOp(opc_iload_0, "iload_0", 0, 1, "", "I"),//NOI18N
    /* | ... => ..., value<1> */
      new VMOp(opc_iload_1, "iload_1", 0, 1, "", "I"),//NOI18N
    /* | ... => ..., value<2> */
      new VMOp(opc_iload_2, "iload_2", 0, 1, "", "I"),//NOI18N
    /* | ... => ..., value<3> */
      new VMOp(opc_iload_3, "iload_3", 0, 1, "", "I"),//NOI18N
    /* | ... => ..., value<0>, value<0> */
      new VMOp(opc_lload_0, "lload_0", 0, 2, "", "J"),//NOI18N
    /* | ... => ..., value<1>, value<1> */
      new VMOp(opc_lload_1, "lload_1", 0, 2, "", "J"),//NOI18N
    /* | ... => ..., value<2>, value<2> */
      new VMOp(opc_lload_2, "lload_2", 0, 2, "", "J"),//NOI18N
    /* | ... => ..., value<3>, value<3> */
      new VMOp(opc_lload_3, "lload_3", 0, 2, "", "J"),//NOI18N
    /* | ... => ..., value<0> */
      new VMOp(opc_fload_0, "fload_0", 0, 1, "", "F"),//NOI18N
    /* | ... => ..., value<1> */
      new VMOp(opc_fload_1, "fload_1", 0, 1, "", "F"),//NOI18N
    /* | ... => ..., value<2> */
      new VMOp(opc_fload_2, "fload_2", 0, 1, "", "F"),//NOI18N
    /* | ... => ..., value<3> */
      new VMOp(opc_fload_3, "fload_3", 0, 1, "", "F"),//NOI18N
    /* | ... => ..., value<0>, value<0> */
      new VMOp(opc_dload_0, "dload_0", 0, 2, "", "D"),//NOI18N
    /* | ... => ..., value<1>, value<1> */
      new VMOp(opc_dload_1, "dload_1", 0, 2, "", "D"),//NOI18N
    /* | ... => ..., value<2>, value<2> */
      new VMOp(opc_dload_2, "dload_2", 0, 2, "", "D"),//NOI18N
    /* | ... => ..., value<3>, value<3> */
      new VMOp(opc_dload_3, "dload_3", 0, 2, "", "D"),//NOI18N
    /* | ... => ..., value<0> */
      new VMOp(opc_aload_0, "aload_0", 0, 1, "", "A"),//NOI18N
    /* | ... => ..., value<1> */
      new VMOp(opc_aload_1, "aload_1", 0, 1, "", "A"),//NOI18N
    /* | ... => ..., value<2> */
      new VMOp(opc_aload_2, "aload_2", 0, 1, "", "A"),//NOI18N
    /* | ... => ..., value<3> */
      new VMOp(opc_aload_3, "aload_3", 0, 1, "", "A"),//NOI18N
    /* | ..., arrayref, index => ..., value */
      new VMOp(opc_iaload, "iaload", 2, 1, "AI", "I"),//NOI18N
    /* | ..., arrayref, index => ..., value<h/l>, value */
      new VMOp(opc_laload, "laload", 2, 2, "AI", "J"),//NOI18N
    /* | ..., arrayref, index => ..., value */
      new VMOp(opc_faload, "faload", 2, 1, "AI", "F"),//NOI18N
    /* | ..., arrayref, index => ..., value<h/l>, value */
      new VMOp(opc_daload, "daload", 2, 2, "AI", "D"),//NOI18N
    /* | ..., arrayref, index => ..., value */
      new VMOp(opc_aaload, "aaload", 2, 1, "AI", "A"),//NOI18N
    /* | ..., arrayref, index => ..., value */
      new VMOp(opc_baload, "baload", 2, 1, "AI", "I"),//NOI18N
    /* | ..., arrayref, index => ..., value */
      new VMOp(opc_caload, "caload", 2, 1, "AI", "I"),//NOI18N
    /* | ..., arrayref, index => ..., value */
      new VMOp(opc_saload, "saload", 2, 1, "AI", "I"),//NOI18N
    /* vindex | ..., value => ... */
      new VMOp(opc_istore, "istore", 1, 0, "I", ""),//NOI18N
    /* vindex | ..., value<h/l>, value => ... */
      new VMOp(opc_lstore, "lstore", 2, 0, "J", ""),//NOI18N
    /* vindex | ..., value => ... */
      new VMOp(opc_fstore, "fstore", 1, 0, "F", ""),//NOI18N
    /* vindex | ..., value<h/l>, value => ... */
      new VMOp(opc_dstore, "dstore", 2, 0, "D", ""),//NOI18N
    /* vindex | ..., value => ... */
      new VMOp(opc_astore, "astore", 1, 0, "A", ""),//NOI18N
    /* | ..., value => ... */
      new VMOp(opc_istore_0, "istore_0", 1, 0, "I", ""),//NOI18N
    /* | ..., value => ... */
      new VMOp(opc_istore_1, "istore_1", 1, 0, "I", ""),//NOI18N
    /* | ..., value => ... */
      new VMOp(opc_istore_2, "istore_2", 1, 0, "I", ""),//NOI18N
    /* | ..., value => ... */
      new VMOp(opc_istore_3, "istore_3", 1, 0, "I", ""),//NOI18N
    /* | ..., value<h/l>, value => ... */
      new VMOp(opc_lstore_0, "lstore_0", 2, 0, "J", ""),//NOI18N
    /* | ..., value<h/l>, value => ... */
      new VMOp(opc_lstore_1, "lstore_1", 2, 0, "J", ""),//NOI18N
    /* | ..., value<h/l>, value => ... */
      new VMOp(opc_lstore_2, "lstore_2", 2, 0, "J", ""),//NOI18N
    /* | ..., value<h/l>, value => ... */
      new VMOp(opc_lstore_3, "lstore_3", 2, 0, "J", ""),//NOI18N
    /* | ..., value => ... */
      new VMOp(opc_fstore_0, "fstore_0", 1, 0, "F", ""),//NOI18N
    /* | ..., value => ... */
      new VMOp(opc_fstore_1, "fstore_1", 1, 0, "F", ""),//NOI18N
    /* | ..., value => ... */
      new VMOp(opc_fstore_2, "fstore_2", 1, 0, "F", ""),//NOI18N
    /* | ..., value => ... */
      new VMOp(opc_fstore_3, "fstore_3", 1, 0, "F", ""),//NOI18N
    /* | ..., value<h/l>, value => ... */
      new VMOp(opc_dstore_0, "dstore_0", 2, 0, "D", ""),//NOI18N
    /* | ..., value<h/l>, value => ... */
      new VMOp(opc_dstore_1, "dstore_1", 2, 0, "D", ""),//NOI18N
    /* | ..., value<h/l>, value => ... */
      new VMOp(opc_dstore_2, "dstore_2", 2, 0, "D", ""),//NOI18N
    /* | ..., value<h/l>, value => ... */
      new VMOp(opc_dstore_3, "dstore_3", 2, 0, "D", ""),//NOI18N
    /* | ..., value => ... */
      new VMOp(opc_astore_0, "astore_0", 1, 0, "A", ""),//NOI18N
    /* | ..., value => ... */
      new VMOp(opc_astore_1, "astore_1", 1, 0, "A", ""),//NOI18N
    /* | ..., value => ... */
      new VMOp(opc_astore_2, "astore_2", 1, 0, "A", ""),//NOI18N
    /* | ..., value => ... */
      new VMOp(opc_astore_3, "astore_3", 1, 0, "A", ""),//NOI18N
    /* | ..., arrayref, index, value => ... */
      new VMOp(opc_iastore, "iastore", 3, 0, "AII", ""),//NOI18N
    /* | ..., arrayref, index, value<h/l>, value => ... */
      new VMOp(opc_lastore, "lastore", 4, 0, "AIJ", ""),//NOI18N
    /* | ..., arrayref, index, value => ... */
      new VMOp(opc_fastore, "fastore", 3, 0, "AIF", ""),//NOI18N
    /* | ..., arrayref, index, value<h/l>, value => ... */
      new VMOp(opc_dastore, "dastore", 4, 0, "AID", ""),//NOI18N
    /* | ..., arrayref, index, value => ... */
      new VMOp(opc_aastore, "aastore", 3, 0, "AIA", ""),//NOI18N
    /* | ..., arrayref, index, value => ... */
      new VMOp(opc_bastore, "bastore", 3, 0, "AII", ""),//NOI18N
    /* | ..., arrayref, index, value => ... */
      new VMOp(opc_castore, "castore", 3, 0, "AII", ""),//NOI18N
    /* | ..., arrayref, index, value => ... */
      new VMOp(opc_sastore, "sastore", 3, 0, "AII", ""),//NOI18N
    /* | ..., any => ... */
      new VMOp(opc_pop, "pop", 1, 0, "W", ""),//NOI18N
    /* | ..., any1, any2 => ... */
      new VMOp(opc_pop2, "pop2", 2, 0, "WW", ""),//NOI18N
    /* | ..., any => ..., any, any */
      new VMOp(opc_dup, "dup", 1, 2, "W", "WW"),//NOI18N
    /* | ..., any1, any2 => ..., any2, any1, any2 */
      new VMOp(opc_dup_x1, "dup_x1", 2, 3, "WW", "WWW"),//NOI18N
    /* | ..., any1, any2, any3 => ..., any3, any1, any2, any3 */
      new VMOp(opc_dup_x2, "dup_x2", 3, 4, "WWW", "WWWW"),//NOI18N
    /* | ..., any1, any2 => ..., any1, any2, any1, any2 */
      new VMOp(opc_dup2, "dup2", 2, 4, "WW", "WWWW"),//NOI18N
    /* | ..., any1, any2, any3 => ..., any2, any3, any1, any2, any3 */
      new VMOp(opc_dup2_x1, "dup2_x1", 3, 5, "WWW", "WWWWW"),//NOI18N
    /* | ..., any1, any2, any3, any4 => ..., any3, any4, any1, any2, any3, any4 */
      new VMOp(opc_dup2_x2, "dup2_x2", 4, 6, "WWWW", "WWWWWW"),//NOI18N
    /* | ..., any1, any2 => ..., any2, any1 */
      new VMOp(opc_swap, "swap", 2, 2, "WW", "WW"),//NOI18N
    /* | ..., value1, value2 => ..., result */
      new VMOp(opc_iadd, "iadd", 2, 1, "II", "I"),//NOI18N
    /* | ..., value1<h/l>, value1, value2, value2 => ..., result, result */
      new VMOp(opc_ladd, "ladd", 4, 2, "JJ", "J"),//NOI18N
    /* | ..., value1, value2 => ..., result */
      new VMOp(opc_fadd, "fadd", 2, 1, "FF", "F"),//NOI18N
    /* | ..., value1<h/l>, value1, value2, value2 => ..., result, result */
      new VMOp(opc_dadd, "dadd", 4, 2, "DD", "D"),//NOI18N
    /* | ..., value1, value2 => ..., result */
      new VMOp(opc_isub, "isub", 2, 1, "II", "I"),//NOI18N
    /* | ..., value1<h/l>, value1, value2, value2 => ..., result, result */
      new VMOp(opc_lsub, "lsub", 4, 2, "JJ", "J"),//NOI18N
    /* | ..., value1, value2 => ..., result */
      new VMOp(opc_fsub, "fsub", 2, 1, "FF", "F"),//NOI18N
    /* | ..., value1<h/l>, value1, value2, value2 => ..., result, result */
      new VMOp(opc_dsub, "dsub", 4, 2, "DD", "D"),//NOI18N
    /* | ..., value1, value2 => ..., result */
      new VMOp(opc_imul, "imul", 2, 1, "II", "I"),//NOI18N
    /* | ..., value1<h/l>, value1, value2, value2 => ..., result, result */
      new VMOp(opc_lmul, "lmul", 4, 2, "JJ", "J"),//NOI18N
    /* | ..., value1, value2 => ..., result */
      new VMOp(opc_fmul, "fmul", 2, 1, "FF", "F"),//NOI18N
    /* | ..., value1<h/l>, value1, value2, value2 => ..., result, result */
      new VMOp(opc_dmul, "dmul", 4, 2, "DD", "D"),//NOI18N
    /* | ..., value1, value2 => ..., result */
      new VMOp(opc_idiv, "idiv", 2, 1, "II", "I"),//NOI18N
    /* | ..., value1<h/l>, value1, value2, value2 => ..., result, result */
      new VMOp(opc_ldiv, "ldiv", 4, 2, "JJ", "J"),//NOI18N
    /* | ..., value1, value2 => ..., result */
      new VMOp(opc_fdiv, "fdiv", 2, 1, "FF", "F"),//NOI18N
    /* | ..., value1<h/l>, value1, value2, value2 => ..., result, result */
      new VMOp(opc_ddiv, "ddiv", 4, 2, "DD", "D"),//NOI18N
    /* | ..., value1, value2 => ..., result */
      new VMOp(opc_irem, "irem", 2, 1, "II", "I"),//NOI18N
    /* | ..., value1<h/l>, value1, value2, value2 => ..., result, result */
      new VMOp(opc_lrem, "lrem", 4, 2, "JJ", "J"),//NOI18N
    /* | ..., value1, value2 => ..., result */
      new VMOp(opc_frem, "frem", 2, 1, "FF", "F"),//NOI18N
    /* | ..., value1<h/l>, value1, value2, value2 => ..., result, result */
      new VMOp(opc_drem, "drem", 4, 2, "DD", "D"),//NOI18N
    /* | ..., value => ..., result */
      new VMOp(opc_ineg, "ineg", 1, 1, "I", "I"),//NOI18N
    /* | ..., value<h/l>, value => ..., result, result */
      new VMOp(opc_lneg, "lneg", 2, 2, "J", "J"),//NOI18N
    /* | ..., value => ..., result */
      new VMOp(opc_fneg, "fneg", 1, 1, "F", "F"),//NOI18N
    /* | ..., value<h/l>, value => ..., result, result */
      new VMOp(opc_dneg, "dneg", 2, 2, "D", "D"),//NOI18N
    /* | ..., value1, value2 => ..., result */
      new VMOp(opc_ishl, "ishl", 2, 1, "II", "I"),//NOI18N
    /* | ..., value1<h/l>, value1, value2 => ..., result */
      new VMOp(opc_lshl, "lshl", 3, 2, "JI", "J"),//NOI18N
    /* | ..., value1, value2 => ..., result */
      new VMOp(opc_ishr, "ishr", 2, 1, "II", "I"),//NOI18N
    /* | ..., value1<h/l>, value1, value2 => ..., result, result */
      new VMOp(opc_lshr, "lshr", 3, 2, "JI", "J"),//NOI18N
    /* | ..., value1, value2 => ..., result */
      new VMOp(opc_iushr, "iushr", 2, 1, "II", "I"),//NOI18N
    /* | ..., value1<h/l>, value1, value2 => ..., result, result */
      new VMOp(opc_lushr, "lushr", 3, 2, "JI", "J"),//NOI18N
    /* | ..., value1, value2 => ..., result */
      new VMOp(opc_iand, "iand", 2, 1, "II", "I"),//NOI18N
    /* | ..., value1<h/l>, value1, value2, value2 => ..., result, result */
      new VMOp(opc_land, "land", 4, 2, "JJ", "J"),//NOI18N
    /* | ..., value1, value2 => ..., result */
      new VMOp(opc_ior, "ior", 2, 1, "II", "I"),//NOI18N
    /* | ..., value1<h/l>, value1, value2, value2 => ..., result, result */
      new VMOp(opc_lor, "lor", 4, 2, "JJ", "J"),//NOI18N
    /* | ..., value1, value2 => ..., result */
      new VMOp(opc_ixor, "ixor", 2, 1, "II", "I"),//NOI18N
    /* | ..., value1<h/l>, value1, value2, value2 => ..., result, result */
      new VMOp(opc_lxor, "lxor", 4, 2, "JJ", "J"),//NOI18N
    /* vindex, const | no change */
      new VMOp(opc_iinc, "iinc", 0, 0, "", ""),//NOI18N
    /* | ..., value => ..., value<h/l>, value */
      new VMOp(opc_i2l, "i2l", 1, 2, "I", "J"),//NOI18N
    /* | ..., value => ..., value */
      new VMOp(opc_i2f, "i2f", 1, 1, "I", "F"),//NOI18N
    /* | ..., value => ..., value<h/l>, value */
      new VMOp(opc_i2d, "i2d", 1, 2, "I", "D"),//NOI18N
    /* | ..., value<h/l>, value => ..., value */
      new VMOp(opc_l2i, "l2i", 2, 1, "J", "I"),//NOI18N
    /* | ..., value<h/l>, value => ..., value */
      new VMOp(opc_l2f, "l2f", 2, 1, "J", "F"),//NOI18N
    /* | ..., value<h/l>, value => ..., value, value */
      new VMOp(opc_l2d, "l2d", 2, 2, "J", "D"),//NOI18N
    /* | ..., value => ..., value */
      new VMOp(opc_f2i, "f2i", 1, 1, "F", "I"),//NOI18N
    /* | ..., value => ..., value<h/l>, value */
      new VMOp(opc_f2l, "f2l", 1, 2, "F", "J"),//NOI18N
    /* | ..., value => ..., value<h/l>, value */
      new VMOp(opc_f2d, "f2d", 1, 2, "F", "D"),//NOI18N
    /* | ..., value<h/l>, value => ..., value */
      new VMOp(opc_d2i, "d2i", 2, 1, "D", "I"),//NOI18N
    /* | ..., value<h/l>, value => ..., value, value */
      new VMOp(opc_d2l, "d2l", 2, 2, "D", "J"),//NOI18N
    /* | ..., value<h/l>, value => ..., value */
      new VMOp(opc_d2f, "d2f", 2, 1, "D", "F"),//NOI18N
    /* | ..., value => ..., result */
      new VMOp(opc_i2b, "i2b", 1, 1, "I", "I"),//NOI18N
    /* | ..., value => ..., result */
      new VMOp(opc_i2c, "i2c", 1, 1, "I", "I"),//NOI18N
    /* | ..., value => ..., result */
      new VMOp(opc_i2s, "i2s", 1, 1, "I", "I"),//NOI18N
    /* | ..., v1<h/l>, v1, v2, v2 => ..., result */
      new VMOp(opc_lcmp, "lcmp", 4, 1, "JJ", "I"),//NOI18N
    /*  | ..., v1<h/l>, v1, v2, v2 => ..., result */
      new VMOp(opc_fcmpl, "fcmpl", 2, 1, "FF", "I"),//NOI18N
    /*  | ..., v1, v2 => ..., result */
      new VMOp(opc_fcmpg, "fcmpg", 2, 1, "FF", "I"),//NOI18N
    /* | ..., v1<h/l>, v1, v2, v2 => ..., result */
      new VMOp(opc_dcmpl, "dcmpl", 4, 1, "DD", "I"),//NOI18N
    /* | ..., v1<h/l>, v1, v2, v2 => ..., result */
      new VMOp(opc_dcmpg, "dcmpg", 4, 1, "DD", "I"),//NOI18N
    /* brbyte1, brbyte2 | ..., value => ... */
      new VMOp(opc_ifeq, "ifeq", 1, 0, "I", ""),//NOI18N
    /* brbyte1, brbyte2 | ..., value => ... */
      new VMOp(opc_ifne, "ifne", 1, 0, "I", ""),//NOI18N
    /* brbyte1, brbyte2 | ..., value => ... */
      new VMOp(opc_iflt, "iflt", 1, 0, "I", ""),//NOI18N
    /* brbyte1, brbyte2 | ..., value => ... */
      new VMOp(opc_ifge, "ifge", 1, 0, "I", ""),//NOI18N
    /* brbyte1, brbyte2 | ..., value => ... */
      new VMOp(opc_ifgt, "ifgt", 1, 0, "I", ""),//NOI18N
    /* brbyte1, brbyte2 | ..., value => ... */
      new VMOp(opc_ifle, "ifle", 1, 0, "I", ""),//NOI18N
    /* brbyte1, brbyte2 | ..., value1, value2 => ... */
      new VMOp(opc_if_icmpeq, "if_icmpeq", 2, 0, "II", ""),//NOI18N
    /* brbyte1, brbyte2 | ..., value1, value2 => ... */
      new VMOp(opc_if_icmpne, "if_icmpne", 2, 0, "II", ""),//NOI18N
    /* brbyte1, brbyte2 | ..., value1, value2 => ... */
      new VMOp(opc_if_icmplt, "if_icmplt", 2, 0, "II", ""),//NOI18N
    /* brbyte1, brbyte2 | ..., value1, value2 => ... */
      new VMOp(opc_if_icmpge, "if_icmpge", 2, 0, "II", ""),//NOI18N
    /* brbyte1, brbyte2 | ..., value1, value2 => ... */
      new VMOp(opc_if_icmpgt, "if_icmpgt", 2, 0, "II", ""),//NOI18N
    /* brbyte1, brbyte2 | ..., value1, value2 => ... */
      new VMOp(opc_if_icmple, "if_icmple", 2, 0, "II", ""),//NOI18N
    /* brbyte1, brbyte2 | ..., value1, value2 => ... */
      new VMOp(opc_if_acmpeq, "if_acmpeq", 2, 0, "AA", ""),//NOI18N
    /* brbyte1, brbyte2 | ..., value1, value2 => ... */
      new VMOp(opc_if_acmpne, "if_acmpne", 2, 0, "AA", ""),//NOI18N
    /* brbyte1, brbyte2 | no change */
      new VMOp(opc_goto, "goto", 0, 0, "", ""),//NOI18N
    /* brbyte1, brbyte2 | ... => ..., return_addr */
      new VMOp(opc_jsr, "jsr", 0, 1, "", "W"),//NOI18N
    /* vindex | no change */
      new VMOp(opc_ret, "ret", 0, 0, "", ""),//NOI18N
    /* ??? | ..., index => ... */
      new VMOp(opc_tableswitch, "tableswitch", 1, 0, "I", ""),//NOI18N
    /* ??? | ..., key => ... */
      new VMOp(opc_lookupswitch, "lookupswitch", 1, 0, "I", ""),//NOI18N
    /* | ..., value => [empty] */
      new VMOp(opc_ireturn, "ireturn", 1, 0, "I", ""),//NOI18N
    /* | ..., value<h/l>, value => [empty] */
      new VMOp(opc_lreturn, "lreturn", 2, 0, "J", ""),//NOI18N
    /* | ..., value => [empty] */
      new VMOp(opc_freturn, "freturn", 1, 0, "F", ""),//NOI18N
    /* | ..., value<h/l>, value => [empty] */
      new VMOp(opc_dreturn, "dreturn", 2, 0, "D", ""),//NOI18N
    /* | ..., value => [empty] */
      new VMOp(opc_areturn, "areturn", 1, 0, "A", ""),//NOI18N
    /* | ... => [empty] */
      new VMOp(opc_return, "return", 0, 0, "", ""),//NOI18N
    /* idxbyte1, idxbyte2 | ... => ..., value [ value2 ] */
      new VMOp(opc_getstatic, "getstatic", 0, -1, "", "?"),//NOI18N
    /* idxbyte1, idxbyte2 | ..., value [ value2 ] => ... */
      new VMOp(opc_putstatic, "putstatic", -1, 0, "?", ""),//NOI18N
    /* idxbyte1, idxbyte2 | ..., objectref => ..., value [ value2 ] */
      new VMOp(opc_getfield, "getfield", 1, -1, "A", "?"),//NOI18N
    /* idxbyte1, idxbyte2 | ..., objectref, value [ value2 ] => ... */
      new VMOp(opc_putfield, "putfield", -1, 0, "A?", ""),//NOI18N
    /* idxbyte1, idxbyte2 | ..., objectref, [args] => ... */
      new VMOp(opc_invokevirtual, "invokevirtual", -1, -1, "A?", "?"),//NOI18N
    /* idxbyte1, idxbyte2 | ..., objectref, [args] => ... */
      new VMOp(opc_invokespecial, "invokespecial", -1, -1, "A?", "?"),//NOI18N
    /* idxbyte1, idxbyte2 | ..., [args] => ... */
      new VMOp(opc_invokestatic, "invokestatic", -1, -1, "?", "?"),//NOI18N
    /* idxbyte1, idxbyte2, nargs, rsvd | ..., objectref, [args] => ... */
      new VMOp(opc_invokeinterface, "invokeinterface", -1, -1, "A?", "?"),//NOI18N
    /* */
      new VMOp(opc_xxxunusedxxx, "xxxunusedxxx", 0, 0, "", ""),//NOI18N
    /* idxbyte1, idxbyte2 | ... => ..., objectref */
      new VMOp(opc_new, "new", 0, 1, "", "A"),//NOI18N
    /* atype | ..., size => ..., result */
      new VMOp(opc_newarray, "newarray", 1, 1, "I", "A"),//NOI18N
    /* indexbyte1, indexbyte2 | ..., size => ..., result */
      new VMOp(opc_anewarray, "anewarray", 1, 1, "I", "A"),//NOI18N
    /* | ..., objectref => ..., length */
      new VMOp(opc_arraylength, "arraylength", 1, 1, "A", "I"),//NOI18N
    /* | ..., objectref => [undefined] */
      new VMOp(opc_athrow, "athrow", 1, 0, "A", "?"),//NOI18N
    /* idxbyte1, idxbyte2 | ..., objectref => ..., objectref */
      new VMOp(opc_checkcast, "checkcast", 1, 1, "A", "A"),//NOI18N
    /* idxbyte1, idxbyte2 | ..., objectref => ..., result */
      new VMOp(opc_instanceof, "instanceof", 1, 1, "A", "I"),//NOI18N
    /* | ..., objectref => ... */
      new VMOp(opc_monitorenter, "monitorenter", 1, 0, "A", ""),//NOI18N
    /* | ..., objectref => ... */
      new VMOp(opc_monitorexit, "monitorexit", 1, 0, "A", ""),//NOI18N
    /* an instruction | special */
      new VMOp(opc_wide, "wide", 0, 0, "", ""),//NOI18N
    /* indexbyte1, indexbyte2, dimensions | ..., size1, ..., sizen => ..., result*/
      new VMOp(opc_multianewarray, "multianewarray", -1, 1, "?", "A"),//NOI18N
    /* brbyte1, brbyte2 | ..., value => ... */
      new VMOp(opc_ifnull, "ifnull", 1, 0, "A", ""),//NOI18N
    /* brbyte1, brbyte2 | ..., value => ... */
      new VMOp(opc_ifnonnull, "ifnonnull", 1, 0, "A", ""),//NOI18N
    /* brbyte1, brbyte2, brbyte3, brbyte4 | no change */
      new VMOp(opc_goto_w, "goto_w", 0, 0, "", ""),//NOI18N
    /* brbyte1, brbyte2, brbyte3, brbyte4 | ... => ..., return_addr */
      new VMOp(opc_jsr_w, "jsr_w", 0, 1, "", "W") };//NOI18N

  /**
   * Check that each entry in the ops array has a valid VMOp entry
   */
  private static void check() {
    for (int i=0; i<=opc_jsr_w; i++) {
      VMOp op = ops[i];
      if (op == null)
          throw new InsnError ("null VMOp for " + i);//NOI18N
      if (op.opcode() != i)
          throw new InsnError ("bad opcode for " + i);//NOI18N

      if (1 == 0) {
	/* check arg/result data */
	checkTypes(op.argTypes(), op.nStackArgs(), op);
	checkTypes(op.resultTypes(), op.nStackResults(), op);
      }
    }
  }

  private static void checkTypes(String types, int n, VMOp op) {
    for (int i=0; i<types.length(); i++) {
      char c = types.charAt(i);
      if (c == '?')
	return;
      if (c == 'J' || c == 'X' || c == 'D')
	n -= 2;
      else
	n -= 1;
    }
    if (n != 0)
        throw new InsnError ("Bad arg/result for VMOp " + op.opcodeName);//NOI18N
  }

  static {
    check();
  }
}