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comparison agent/src/share/classes/sun/jvm/hotspot/asm/sparc/SPARCV9WriteInstruction.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 import sun.jvm.hotspot.utilities.Assert;
29
30 public class SPARCV9WriteInstruction extends SPARCV9SpecialRegisterInstruction {
31 final private int specialReg;
32 final private int asrRegNum;
33 final private SPARCRegister rs1;
34 final private ImmediateOrRegister operand2;
35
36 public SPARCV9WriteInstruction(int specialReg, int asrRegNum, SPARCRegister rs1, ImmediateOrRegister operand2) {
37 super("wr");
38 this.specialReg = specialReg;
39 this.asrRegNum = asrRegNum;
40 this.rs1 = rs1;
41 this.operand2 = operand2;
42 }
43
44 public int getSpecialRegister() {
45 return specialReg;
46 }
47
48 public int getAncillaryRegister() {
49 if (Assert.ASSERTS_ENABLED)
50 Assert.that(specialReg == ASR, "not an ancillary register");
51 return asrRegNum;
52 }
53
54 protected String getDescription() {
55 StringBuffer buf = new StringBuffer();
56 buf.append(getName());
57 buf.append(spaces);
58 buf.append(rs1.toString());
59 buf.append(comma);
60 if (operand2.isRegister()) {
61 buf.append(operand2.toString());
62 } else {
63 Number number = ((Immediate)operand2).getNumber();
64 buf.append("0x");
65 buf.append(Integer.toHexString(number.intValue()));
66 }
67 buf.append(comma);
68
69 if(specialReg == ASR)
70 buf.append("%asr" + asrRegNum);
71 else
72 buf.append(getSpecialRegisterName(specialReg));
73 return buf.toString();
74 }
75 }