0
|
1 /*
|
|
2 * Copyright 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 class X86ShiftInstruction extends X86Instruction implements ShiftInstruction {
|
|
30 final private int operation;
|
|
31 final private Operand operand1;
|
|
32 final private ImmediateOrRegister operand2;
|
|
33
|
|
34 public X86ShiftInstruction(String name, int operation, Operand operand1, ImmediateOrRegister operand2, int size, int prefixes) {
|
|
35 super(name, size, prefixes);
|
|
36 this.operand1 = operand1;
|
|
37 this.operand2 = operand2;
|
|
38 this.operation = operation;
|
|
39 }
|
|
40
|
|
41 public String asString(long currentPc, SymbolFinder symFinder) {
|
|
42 StringBuffer buf = new StringBuffer();
|
|
43 buf.append(getPrefixString());
|
|
44 buf.append(getName());
|
|
45 buf.append(spaces);
|
|
46 buf.append(getOperandAsString(operand1));
|
|
47
|
|
48 if(operand2 != null) {
|
|
49 buf.append(comma);
|
|
50
|
|
51 if ((operand2 instanceof Register)) {
|
|
52 buf.append(operand2.toString());
|
|
53 }
|
|
54 else {
|
|
55 Number number = ((Immediate)operand2).getNumber();
|
|
56 buf.append("0x");
|
|
57 buf.append(Integer.toHexString(number.intValue()));
|
|
58 }
|
|
59 }
|
|
60 return buf.toString();
|
|
61 }
|
|
62
|
|
63 public int getOperation() {
|
|
64 return operation;
|
|
65 }
|
|
66
|
|
67 public Operand getShiftDestination() {
|
|
68 return operand1;
|
|
69 }
|
|
70
|
|
71 public Operand getShiftLength() {
|
|
72 return operand2;
|
|
73 }
|
|
74
|
|
75 public Operand getShiftSource() {
|
|
76 return operand1;
|
|
77 }
|
|
78
|
|
79 public boolean isShift() {
|
|
80 return true;
|
|
81 }
|
|
82
|
|
83 protected String getOperand2String() {
|
|
84 return operand2.toString();
|
|
85 }
|
|
86 }
|