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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 |
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date | Sat, 01 Dec 2007 00:00:00 +0000 |
parents | |
children | c18cbe5936b8 |
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-1:000000000000 | 0:a61af66fc99e |
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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 } |