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comparison graal/com.oracle.max.asmdis/src/com/sun/max/asm/gen/ImmediateArgument.java @ 3733:e233f5660da4

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Added Java files from Maxine project.
author Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
date Sat, 17 Dec 2011 19:59:18 +0100
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3732:3e2e8b8abdaf 3733:e233f5660da4
1 /*
2 * Copyright (c) 2007, 2011, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23 package com.sun.max.asm.gen;
24
25 import com.sun.max.asm.*;
26 import com.sun.max.lang.*;
27 import com.sun.max.program.*;
28
29 /**
30 */
31 public abstract class ImmediateArgument implements Argument {
32
33 public static ImmediateArgument create(long value, WordWidth width) {
34 switch (width) {
35 case BITS_8:
36 return new Immediate8Argument((byte) value);
37 case BITS_16:
38 return new Immediate16Argument((short) value);
39 case BITS_32:
40 return new Immediate32Argument((int) value);
41 case BITS_64:
42 return new Immediate64Argument(value);
43 default:
44 throw ProgramError.unknownCase();
45 }
46 }
47
48 public ImmediateArgument plus(ImmediateArgument addend) {
49 return create(asLong() + addend.asLong(), width());
50 }
51
52 public ImmediateArgument plus(long addend) {
53 return create(asLong() + addend, width());
54 }
55
56 public ImmediateArgument minus(ImmediateArgument addend) {
57 return create(asLong() - addend.asLong(), width());
58 }
59
60 public ImmediateArgument minus(long addend) {
61 return create(asLong() - addend, width());
62 }
63
64 public abstract WordWidth width();
65
66 public abstract String signedExternalValue();
67
68 public abstract Object boxedJavaValue();
69
70 @Override
71 public final String toString() {
72 return "<" + getClass().getSimpleName() + ": " + externalValue() + ">";
73 }
74
75 }