/*

 * Copyright 2002-2003 Sun Microsystems, Inc.  All Rights Reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

 * CA 95054 USA or visit www.sun.com if you need additional information or

 * have any questions.

 *

 */

package sun.jvm.hotspot.asm.x86;

import sun.jvm.hotspot.asm.*;

public abstract class X86Instruction implements Instruction, X86Opcodes {

   final private String name;

   final private int size;

   final private int prefixes;

   public X86Instruction(String name, int size, int prefixes) {

      this.name = name;

      this.size = size;

      this.prefixes = prefixes;

   }

   public abstract String asString(long currentPc, SymbolFinder symFinder);

   public String getName() {

      return name;

   }

   public String getPrefixString() {

      StringBuffer buf = new StringBuffer();

      if ((prefixes & PREFIX_REPZ) != 0)

         buf.append("repz ");

      if ((prefixes & PREFIX_REPNZ) != 0)

         buf.append("repnz ");

      if ((prefixes & PREFIX_LOCK) != 0)

         buf.append("lock ");

      return buf.toString();

   }

   protected String getOperandAsString(Operand op) {

      StringBuffer buf = new StringBuffer();

      if ((op instanceof Register) || (op instanceof Address)) {

         buf.append(op.toString());

      } else {

         Number number = ((Immediate)op).getNumber();

         buf.append("0x");

         buf.append(Integer.toHexString(number.intValue()));

      }

      return buf.toString();

   }

   public int getSize() {

      return size;

   }

   public boolean isArithmetic() {

      return false;

   }

   public boolean isBranch() {

      return false;

   }

   public boolean isCall() {

      return false;

   }

   public boolean isFloat() {

      return false;

   }

   public boolean isIllegal() {

      return false;

   }

   public boolean isLoad() {

      return false;

   }

   public boolean isLogical() {

      return false;

   }

   public boolean isMove() {

      return false;

   }

   public boolean isReturn() {

      return false;

   }

   public boolean isShift() {

      return false;

   }

   public boolean isStore() {

      return false;

   }

   public boolean isTrap() {

      return false;

   }

   public boolean isNoop() {

      return false;

   }

   protected static String comma = ", ";

   protected static String spaces = "\t";

}