Mercurial > hg > truffle

annotate graal/com.oracle.max.base/src/com/sun/max/lang/Endianness.java @ 4142:bc8527f3071c

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Adjust code base to new level of warnings.
author Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
date Sun, 18 Dec 2011 05:24:06 +0100
parents e233f5660da4
children
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1 /*
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2 * Copyright (c) 2007, 2011, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 */
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23 package com.sun.max.lang;
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24
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25 import java.io.*;
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26 import java.nio.*;
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27
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28 /**
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29 * Enumerated type with values for the most common more ways to arrange bits, bytes, etc.
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30 */
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31 public enum Endianness {
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32
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33 LITTLE {
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34 @Override
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35 public short readShort(InputStream stream) throws IOException {
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36 final int low = readByte(stream) & 0xff;
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37 final int high = readByte(stream);
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38 return (short) ((high << 8) | low);
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39 }
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40
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41 @Override
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42 public int readInt(InputStream stream) throws IOException {
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43 final int low = readShort(stream) & 0xffff;
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44 final int high = readShort(stream);
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45 return (high << 16) | low;
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46 }
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47
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48 @Override
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49 public long readLong(InputStream stream) throws IOException {
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50 final long low = readInt(stream) & 0xffffffffL;
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51 final long high = readInt(stream);
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52 return (high << 32) | low;
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53 }
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54
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55 @Override
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56 public void writeShort(OutputStream stream, short value) throws IOException {
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57 short v = value;
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58 stream.write(v & 0xff);
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59 v >>= 8;
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60 stream.write(v & 0xff);
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61 }
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62
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63 @Override
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64 public void writeInt(OutputStream stream, int value) throws IOException {
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65 int v = value;
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66 stream.write(v & 0xff);
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67 v >>= 8;
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68 stream.write(v & 0xff);
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69 v >>= 8;
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70 stream.write(v & 0xff);
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71 v >>= 8;
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72 stream.write(v & 0xff);
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73 }
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74
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75 @Override
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76 public void writeLong(OutputStream stream, long value) throws IOException {
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77 long v = value;
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78 stream.write((int) v & 0xff);
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79 v >>= 8;
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80 stream.write((int) v & 0xff);
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81 v >>= 8;
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82 stream.write((int) v & 0xff);
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83 v >>= 8;
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84 stream.write((int) v & 0xff);
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85 v >>= 8;
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86 stream.write((int) v & 0xff);
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87 v >>= 8;
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88 stream.write((int) v & 0xff);
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89 v >>= 8;
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90 stream.write((int) v & 0xff);
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91 v >>= 8;
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92 stream.write((int) v & 0xff);
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93 }
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94
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95 @Override
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96 public byte[] toBytes(short value) {
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97 short v = value;
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98 final byte[] bytes = new byte[2];
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99 bytes[0] = (byte) (v & 0xff);
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100 v >>= 8;
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101 bytes[1] = (byte) (v & 0xff);
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102 return bytes;
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103 }
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104
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105 @Override
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106 public byte[] toBytes(int value) {
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107 int v = value;
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108 final byte[] bytes = new byte[4];
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109 bytes[0] = (byte) (v & 0xff);
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110 v >>= 8;
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111 bytes[1] = (byte) (v & 0xff);
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112 v >>= 8;
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113 bytes[2] = (byte) (v & 0xff);
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114 v >>= 8;
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115 bytes[3] = (byte) (v & 0xff);
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116 return bytes;
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117 }
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118
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119 @Override
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120 public byte[] toBytes(long value) {
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121 long v = value;
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122 final byte[] bytes = new byte[8];
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123 bytes[0] = (byte) (v & 0xff);
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124 v >>= 8;
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125 bytes[1] = (byte) (v & 0xff);
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126 v >>= 8;
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127 bytes[2] = (byte) (v & 0xff);
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128 v >>= 8;
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129 bytes[3] = (byte) (v & 0xff);
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130 v >>= 8;
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131 bytes[4] = (byte) (v & 0xff);
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132 v >>= 8;
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133 bytes[5] = (byte) (v & 0xff);
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134 v >>= 8;
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135 bytes[6] = (byte) (v & 0xff);
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136 v >>= 8;
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137 bytes[7] = (byte) (v & 0xff);
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138 return bytes;
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139 }
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140
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141 @Override
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diff changeset
142 public void toBytes(short value, byte[] result, int offset) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
143 short v = value;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
144 for (int i = 0; i < Shorts.SIZE && i < result.length; i++) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
145 result[i + offset] = (byte) (v & 0xff);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
146 v >>= 8;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
147 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
148 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
149
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
150 @Override
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
151 public void toBytes(int value, byte[] result, int offset) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
152 int v = value;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
153 for (int i = 0; i < Ints.SIZE && i < result.length; i++) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
154 result[i + offset] = (byte) (v & 0xff);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
155 v >>= 8;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
156 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
157 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
158
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
159 @Override
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
160 public void toBytes(long value, byte[] result, int offset) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
161 long v = value;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
162 for (int i = 0; i < Longs.SIZE && i < result.length; i++) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
163 result[i + offset] = (byte) (v & 0xff);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
164 v >>= 8;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
165 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
166 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
167
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
168 @Override
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
169 public int offsetWithinWord(WordWidth wordWidth, WordWidth dataWidth) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
170 return 0;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
171 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
172
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
173 @Override
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
174 public ByteOrder asByteOrder() {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
175 return ByteOrder.LITTLE_ENDIAN;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
176 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
177 },
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
178 BIG {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
179 @Override
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
180 public short readShort(InputStream stream) throws IOException {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
181 final int high = readByte(stream);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
182 final int low = readByte(stream) & 0xff;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
183 return (short) ((high << 8) | low);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
184 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
185
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
186 @Override
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
187 public int readInt(InputStream stream) throws IOException {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
188 final int high = readShort(stream);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
189 final int low = readShort(stream) & 0xffff;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
190 return (high << 16) | low;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
191 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
192
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
193 @Override
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
194 public long readLong(InputStream stream) throws IOException {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
195 final long high = readInt(stream);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
196 final long low = readInt(stream) & 0xffffffffL;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
197 return (high << 32) | low;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
198 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
199
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
200 @Override
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
201 public void writeShort(OutputStream stream, short value) throws IOException {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
202 stream.write((value >> 8) & 0xff);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
203 stream.write(value & 0xff);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
204 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
205
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
206 @Override
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
207 public void writeInt(OutputStream stream, int value) throws IOException {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
208 stream.write((value >> 24) & 0xff);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
209 stream.write((value >> 16) & 0xff);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
210 stream.write((value >> 8) & 0xff);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
211 stream.write(value & 0xff);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
212 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
213
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
214 @Override
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
215 public void writeLong(OutputStream stream, long value) throws IOException {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
216 stream.write((int) (value >> 56) & 0xff);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
217 stream.write((int) (value >> 48) & 0xff);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
218 stream.write((int) (value >> 40) & 0xff);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
219 stream.write((int) (value >> 32) & 0xff);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
220 stream.write((int) (value >> 24) & 0xff);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
221 stream.write((int) (value >> 16) & 0xff);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
222 stream.write((int) (value >> 8) & 0xff);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
223 stream.write((int) value & 0xff);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
224 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
225
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
226 @Override
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
227 public byte[] toBytes(short value) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
228 short v = value;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
229 final byte[] bytes = new byte[2];
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
230 bytes[1] = (byte) (v & 0xff);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
231 v >>= 8;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
232 bytes[0] = (byte) (v & 0xff);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
233 return bytes;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
234 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
235
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
236 @Override
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
237 public byte[] toBytes(int value) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
238 int v = value;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
239 final byte[] bytes = new byte[4];
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
240 bytes[3] = (byte) (v & 0xff);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
241 v >>= 8;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
242 bytes[2] = (byte) (v & 0xff);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
243 v >>= 8;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
244 bytes[1] = (byte) (v & 0xff);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
245 v >>= 8;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
246 bytes[0] = (byte) (v & 0xff);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
247 return bytes;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
248 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
249
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
250 @Override
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
251 public byte[] toBytes(long value) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
252 long v = value;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
253 final byte[] bytes = new byte[8];
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
254 bytes[7] = (byte) (v & 0xff);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
255 v >>= 8;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
256 bytes[6] = (byte) (v & 0xff);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
257 v >>= 8;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
258 bytes[5] = (byte) (v & 0xff);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
259 v >>= 8;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
260 bytes[4] = (byte) (v & 0xff);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
261 v >>= 8;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
262 bytes[3] = (byte) (v & 0xff);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
263 v >>= 8;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
264 bytes[2] = (byte) (v & 0xff);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
265 v >>= 8;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
266 bytes[1] = (byte) (v & 0xff);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
267 v >>= 8;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
268 bytes[0] = (byte) (v & 0xff);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
269 return bytes;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
270 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
271
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
272 @Override
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
273 public void toBytes(short value, byte[] result, int offset) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
274 short v = value;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
275 int toIndex = offset + Shorts.SIZE - 1;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
276 for (int i = 1; i <= Shorts.SIZE && i <= result.length; i++) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
277 result[toIndex--] = (byte) (v & 0xff);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
278 v >>= 8;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
279 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
280 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
281
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
282 @Override
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
283 public void toBytes(int value, byte[] result, int offset) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
284 int v = value;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
285 int toIndex = offset + Ints.SIZE - 1;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
286 for (int i = 1; i <= Ints.SIZE && i <= result.length; i++) {
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287 result[toIndex--] = (byte) (v & 0xff);
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288 v >>= 8;
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289 }
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290 }
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291
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292 @Override
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293 public void toBytes(long value, byte[] result, int offset) {
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294 long v = value;
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295 int toIndex = offset + Longs.SIZE - 1;
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296 for (int i = 1; i <= Longs.SIZE && i <= result.length; i++) {
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297 result[toIndex--] = (byte) (v & 0xff);
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298 v >>= 8;
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299 }
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300 }
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301
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302 @Override
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303 public int offsetWithinWord(WordWidth wordWidth, WordWidth dataWidth) {
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304 assert wordWidth.numberOfBytes >= dataWidth.numberOfBytes;
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305 return wordWidth.numberOfBytes - dataWidth.numberOfBytes;
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306 }
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307
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308 @Override
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309 public ByteOrder asByteOrder() {
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310 return ByteOrder.BIG_ENDIAN;
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311 }
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312 };
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313
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314 @Override
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315 public String toString() {
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316 return name().toLowerCase();
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317 }
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318
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319 public byte readByte(InputStream stream) throws IOException {
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320 final int result = stream.read();
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321 if (result < 0) {
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322 throw new IOException();
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323 }
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324 return (byte) result;
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325 }
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326
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327 public abstract short readShort(InputStream stream) throws IOException;
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328
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329 public abstract int readInt(InputStream stream) throws IOException;
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330
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331 public abstract long readLong(InputStream stream) throws IOException;
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332
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333 public abstract void writeShort(OutputStream stream, short value) throws IOException;
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334
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335 public abstract void writeInt(OutputStream stream, int value) throws IOException;
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336
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337 public abstract void writeLong(OutputStream stream, long value) throws IOException;
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338
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339 public byte[] toBytes(byte value) {
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340 final byte[] bytes = new byte[1];
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341 bytes[0] = value;
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342 return bytes;
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343 }
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344
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diff changeset
345 public abstract byte[] toBytes(short value);
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346
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diff changeset
347 public abstract byte[] toBytes(int value);
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348
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349 public abstract byte[] toBytes(long value);
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diff changeset
350
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diff changeset
351 public abstract void toBytes(short value, byte[] result, int offset);
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diff changeset
352
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diff changeset
353 public abstract void toBytes(int value, byte[] result, int offset);
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diff changeset
354
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diff changeset
355 public abstract void toBytes(long value, byte[] result, int offset);
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diff changeset
356
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diff changeset
357 public abstract int offsetWithinWord(WordWidth wordWith, WordWidth dataWidth);
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diff changeset
358
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diff changeset
359 public abstract ByteOrder asByteOrder();
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360 }