1 /*
   2  * Copyright 2003 Sun Microsystems, Inc.  All Rights Reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
  20  * CA 95054 USA or visit www.sun.com if you need additional information or
  21  * have any questions.
  22  *
  23  */
  24 
  25 package sun.jvm.hotspot.asm.x86;
  26 
  27 import sun.jvm.hotspot.asm.*;
  28 
  29 public class X86MoveInstruction extends X86Instruction
  30                           implements MoveInstruction, RTLOperations {
  31    private ImmediateOrRegister source;
  32    private X86Register destination;
  33 
  34    public X86MoveInstruction(String name, X86Register rd, ImmediateOrRegister oSrc, int size, int prefixes) {
  35       super(name, size, prefixes);
  36       this.source = oSrc;
  37       this.destination = rd;
  38    }
  39    public String asString(long currentPc, SymbolFinder symFinder) {
  40       StringBuffer buf = new StringBuffer();
  41       buf.append(getPrefixString());
  42       buf.append(getName());
  43       buf.append(spaces);
  44       buf.append(destination.toString());
  45       buf.append(comma);
  46       buf.append(getSourceString());
  47       return buf.toString();
  48    }
  49 
  50    protected String getSourceString() {
  51       StringBuffer buf = new StringBuffer();
  52       if ((source instanceof Register)) {
  53          buf.append(source.toString());
  54       } else {
  55          Number number = ((Immediate)source).getNumber();
  56          buf.append("0x");
  57          buf.append(Integer.toHexString(number.intValue()));
  58       }
  59       return buf.toString();
  60    }
  61 
  62    public ImmediateOrRegister getMoveSource() {
  63       return source;
  64    }
  65 
  66    public Register getMoveDestination() {
  67      return destination;
  68    }
  69 
  70    // for condition moves
  71    public boolean  isConditional() {
  72       return false;
  73    }
  74 
  75    public boolean isMove() {
  76       return true;
  77    }
  78 }