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comparison agent/src/share/classes/sun/jvm/hotspot/asm/sparc/SPARCSethiInstruction.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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-1:000000000000 0:a61af66fc99e
1 /*
2 * Copyright 2002 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.sparc;
26
27 import sun.jvm.hotspot.asm.*;
28
29 public class SPARCSethiInstruction extends SPARCInstruction
30 implements MoveInstruction {
31 final private SPARCRegister register;
32 final private ImmediateOrRegister value;
33 final private String description;
34
35 public SPARCSethiInstruction(int value, SPARCRegister register) {
36 super("sethi");
37 this.register = register;
38 value <<= 10;
39 this.value = new Immediate(new Integer(value));
40 description = initDescription(value);
41 }
42
43 private String initDescription(int val) {
44 if (val == 0 && register == SPARCRegisters.G0) {
45 return "nop";
46 } else {
47 StringBuffer buf = new StringBuffer();
48 buf.append(getName());
49 buf.append(spaces);
50 buf.append("%hi(0x");
51 buf.append(Integer.toHexString(val));
52 buf.append(')');
53 buf.append(comma);
54 buf.append(register.toString());
55 return buf.toString();
56 }
57 }
58
59 public String asString(long currentPc, SymbolFinder symFinder) {
60 return description;
61 }
62
63 public Register getMoveDestination() {
64 return register;
65 }
66
67 public ImmediateOrRegister getMoveSource() {
68 return value;
69 }
70
71 public boolean isConditional() {
72 return false;
73 }
74 }