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comparison agent/src/share/classes/sun/jvm/hotspot/asm/sparc/SPARCV9MembarInstruction.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.SymbolFinder;
28 import java.util.Vector;
29
30 public class SPARCV9MembarInstruction extends SPARCInstruction
31 implements SPARCV9Instruction {
32 final private int mmask;
33 final private int cmask;
34 final private String description;
35
36 public SPARCV9MembarInstruction(int mmask, int cmask) {
37 super("membar");
38 this.mmask = mmask & 0xF;
39 this.cmask = cmask & 0x7;
40 description = initDescription();
41 }
42
43 private String initDescription() {
44 StringBuffer buf = new StringBuffer();
45 buf.append(getName());
46 buf.append(spaces);
47
48 Vector masks = new Vector();
49 if ((mmask & 0x1) != 0)
50 masks.add("#LoadLoad");
51 if ((mmask & 0x2) != 0)
52 masks.add("#StoreLoad");
53 if ((mmask & 0x4) != 0)
54 masks.add("#LoadStore");
55 if ((mmask & 0x8) != 0)
56 masks.add("#StoreStore");
57
58 if ((cmask & 0x1) != 0)
59 masks.add("#Lookaside");
60 if ((cmask & 0x2) != 0)
61 masks.add("#MemIssue");
62 if ((cmask & 0x4) != 0)
63 masks.add("#Sync");
64
65 // add all masks
66 Object[] tempMasks = masks.toArray();
67 for (int i=0; i < tempMasks.length - 1; i++) {
68 buf.append((String)tempMasks[i]);
69 buf.append("| ");
70 }
71 buf.append((String)tempMasks[tempMasks.length - 1]);
72
73 return buf.toString();
74 }
75
76 public int getMMask() {
77 return mmask;
78 }
79
80 public int getCMask() {
81 return cmask;
82 }
83
84 public String asString(long currentPc, SymbolFinder symFinder) {
85 return description;
86 }
87 }