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comparison agent/src/share/classes/sun/jvm/hotspot/asm/x86/X86Instruction.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 2002-2003 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.x86;
26
27 import sun.jvm.hotspot.asm.*;
28
29 public abstract class X86Instruction implements Instruction, X86Opcodes {
30 final private String name;
31 final private int size;
32 final private int prefixes;
33
34 public X86Instruction(String name, int size, int prefixes) {
35 this.name = name;
36 this.size = size;
37 this.prefixes = prefixes;
38 }
39
40 public abstract String asString(long currentPc, SymbolFinder symFinder);
41
42 public String getName() {
43 return name;
44 }
45
46 public String getPrefixString() {
47 StringBuffer buf = new StringBuffer();
48 if ((prefixes & PREFIX_REPZ) != 0)
49 buf.append("repz ");
50 if ((prefixes & PREFIX_REPNZ) != 0)
51 buf.append("repnz ");
52 if ((prefixes & PREFIX_LOCK) != 0)
53 buf.append("lock ");
54
55 return buf.toString();
56 }
57
58 protected String getOperandAsString(Operand op) {
59 StringBuffer buf = new StringBuffer();
60 if ((op instanceof Register) || (op instanceof Address)) {
61 buf.append(op.toString());
62 } else {
63 Number number = ((Immediate)op).getNumber();
64 buf.append("0x");
65 buf.append(Integer.toHexString(number.intValue()));
66 }
67 return buf.toString();
68 }
69
70 public int getSize() {
71 return size;
72 }
73
74 public boolean isArithmetic() {
75 return false;
76 }
77
78 public boolean isBranch() {
79 return false;
80 }
81
82 public boolean isCall() {
83 return false;
84 }
85
86 public boolean isFloat() {
87 return false;
88 }
89
90 public boolean isIllegal() {
91 return false;
92 }
93
94 public boolean isLoad() {
95 return false;
96 }
97
98 public boolean isLogical() {
99 return false;
100 }
101
102 public boolean isMove() {
103 return false;
104 }
105
106 public boolean isReturn() {
107 return false;
108 }
109
110 public boolean isShift() {
111 return false;
112 }
113
114 public boolean isStore() {
115 return false;
116 }
117
118 public boolean isTrap() {
119 return false;
120 }
121
122 public boolean isNoop() {
123 return false;
124 }
125
126 protected static String comma = ", ";
127 protected static String spaces = "\t";
128 }