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comparison agent/src/share/classes/sun/jvm/hotspot/asm/x86/X86MoveInstruction.java @ 0:a61af66fc99e jdk7-b24

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author duke
date Sat, 01 Dec 2007 00:00:00 +0000
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children c18cbe5936b8
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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 }