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comparison agent/src/share/classes/sun/jvm/hotspot/asm/BaseIndexScaleDispAddress.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;
26
27 // address is calculated as (base + (index * scale) + displacement)
28 // optionally index is auto incremented or decremented
29
30 public abstract class BaseIndexScaleDispAddress extends IndirectAddress {
31 private final Register base, index;
32 private final int scale;
33 private final long disp;
34 private boolean isAutoIncr;
35 private boolean isAutoDecr;
36
37 public BaseIndexScaleDispAddress(Register base, Register index, long disp, int scale) {
38 this.base = base;
39 this.index = index;
40 this.disp = disp;
41 this.scale = scale;
42 }
43
44 public BaseIndexScaleDispAddress(Register base, Register index, long disp) {
45 this(base, index, disp, 1);
46 }
47
48 public BaseIndexScaleDispAddress(Register base, Register index) {
49 this(base, index, 0L, 1);
50 }
51
52 public BaseIndexScaleDispAddress(Register base, long disp) {
53 this(base, null, disp, 1);
54 }
55
56 public Register getBase() {
57 return base;
58 }
59
60 public Register getIndex() {
61 return index;
62 }
63
64 public int getScale() {
65 return scale;
66 }
67
68 public long getDisplacement() {
69 return disp;
70 }
71
72 // is the index auto decremented or incremented?
73 public boolean isAutoIncrement() {
74 return isAutoIncr;
75 }
76
77 public void setAutoIncrement(boolean value) {
78 isAutoIncr = value;
79 }
80
81 public boolean isAutoDecrement() {
82 return isAutoDecr;
83 }
84
85 public void setAutoDecrement(boolean value) {
86 isAutoDecr = value;
87 }
88 }