X86MoveInstruction.java

/*
 * Copyright 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 class X86MoveInstruction extends X86Instruction
                          implements MoveInstruction, RTLOperations {
   private ImmediateOrRegister source;
   private X86Register destination;

   public X86MoveInstruction(String name, X86Register rd, ImmediateOrRegister oSrc, int size, int prefixes) {
      super(name, size, prefixes);
      this.source = oSrc;
      this.destination = rd;
   }
   public String asString(long currentPc, SymbolFinder symFinder) {
      StringBuffer buf = new StringBuffer();
      buf.append(getPrefixString());
      buf.append(getName());
      buf.append(spaces);
      buf.append(destination.toString());
      buf.append(comma);
      buf.append(getSourceString());
      return buf.toString();
   }

   protected String getSourceString() {
      StringBuffer buf = new StringBuffer();
      if ((source instanceof Register)) {
         buf.append(source.toString());
      } else {
         Number number = ((Immediate)source).getNumber();
         buf.append("0x");
         buf.append(Integer.toHexString(number.intValue()));
      }
      return buf.toString();
   }

   public ImmediateOrRegister getMoveSource() {
      return source;
   }

   public Register getMoveDestination() {
     return destination;
   }

   // for condition moves
   public boolean  isConditional() {
      return false;
   }

   public boolean isMove() {
      return true;
   }
}