Mercurial > hg > truffle
annotate graal/com.oracle.max.base/src/com/sun/max/lang/Endianness.java @ 4184:fa6b78681c54
Added copyright check to the gate.
author | Doug Simon <doug.simon@oracle.com> |
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date | Tue, 03 Jan 2012 12:37:31 +0100 |
parents | bc8527f3071c |
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rev | line source |
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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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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
126 v >>= 8; |
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Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
127 bytes[2] = (byte) (v & 0xff); |
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Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
128 v >>= 8; |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
129 bytes[3] = (byte) (v & 0xff); |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
130 v >>= 8; |
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Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
131 bytes[4] = (byte) (v & 0xff); |
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Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
132 v >>= 8; |
e233f5660da4
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
133 bytes[5] = (byte) (v & 0xff); |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
134 v >>= 8; |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
135 bytes[6] = (byte) (v & 0xff); |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
136 v >>= 8; |
e233f5660da4
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
137 bytes[7] = (byte) (v & 0xff); |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
138 return bytes; |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
139 } |
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Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
140 |
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Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
141 @Override |
e233f5660da4
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
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; |
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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; |
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Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
147 } |
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Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
148 } |
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Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
149 |
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Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
150 @Override |
e233f5660da4
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
151 public void toBytes(int value, byte[] result, int offset) { |
e233f5660da4
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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; |
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253 final byte[] bytes = new byte[8]; |
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254 bytes[7] = (byte) (v & 0xff); |
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255 v >>= 8; |
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256 bytes[6] = (byte) (v & 0xff); |
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257 v >>= 8; |
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258 bytes[5] = (byte) (v & 0xff); |
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259 v >>= 8; |
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260 bytes[4] = (byte) (v & 0xff); |
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261 v >>= 8; |
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262 bytes[3] = (byte) (v & 0xff); |
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263 v >>= 8; |
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264 bytes[2] = (byte) (v & 0xff); |
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265 v >>= 8; |
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266 bytes[1] = (byte) (v & 0xff); |
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267 v >>= 8; |
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268 bytes[0] = (byte) (v & 0xff); |
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269 return bytes; |
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270 } |
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271 |
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272 @Override |
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273 public void toBytes(short value, byte[] result, int offset) { |
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274 short v = value; |
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275 int toIndex = offset + Shorts.SIZE - 1; |
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276 for (int i = 1; i <= Shorts.SIZE && i <= result.length; i++) { |
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277 result[toIndex--] = (byte) (v & 0xff); |
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278 v >>= 8; |
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279 } |
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280 } |
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281 |
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282 @Override |
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283 public void toBytes(int value, byte[] result, int offset) { |
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284 int v = value; |
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285 int toIndex = offset + Ints.SIZE - 1; |
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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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changeset
|
341 bytes[0] = value; |
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|
342 return bytes; |
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parents:
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changeset
|
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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|
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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|
350 |
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|
351 public abstract void toBytes(short value, byte[] result, int offset); |
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|
352 |
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parents:
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changeset
|
353 public abstract void toBytes(int value, byte[] result, int offset); |
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|
354 |
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parents:
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|
355 public abstract void toBytes(long value, byte[] result, int offset); |
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parents:
diff
changeset
|
356 |
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parents:
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|
357 public abstract int offsetWithinWord(WordWidth wordWith, WordWidth dataWidth); |
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|
358 |
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|
359 public abstract ByteOrder asByteOrder(); |
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|
360 } |