1 /*

     2  * Copyright (c) 2003, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    20  * or visit www.oracle.com if you need additional information or have any

    21  * 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 }