--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graal/com.oracle.max.base/src/com/sun/max/lang/Endianness.java	Sat Dec 17 19:59:18 2011 +0100
@@ -0,0 +1,366 @@
+/*
+ * Copyright (c) 2007, 2011, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+package com.sun.max.lang;
+
+import java.io.*;
+import java.nio.*;
+
+/**
+ * Enumerated type with values for the most common more ways to arrange bits, bytes, etc.
+ */
+public enum Endianness {
+
+    LITTLE {
+        @Override
+        public short readShort(InputStream stream) throws IOException {
+            final int low = readByte(stream) & 0xff;
+            final int high = readByte(stream);
+            return (short) ((high << 8) | low);
+        }
+
+        @Override
+        public int readInt(InputStream stream) throws IOException {
+            final int low = readShort(stream) & 0xffff;
+            final int high = readShort(stream);
+            return (high << 16) | low;
+        }
+
+        @Override
+        public long readLong(InputStream stream) throws IOException {
+            final long low = readInt(stream) & 0xffffffffL;
+            final long high = readInt(stream);
+            return (high << 32) | low;
+        }
+
+        @Override
+        public void writeShort(OutputStream stream, short value) throws IOException {
+            short v = value;
+            stream.write(v & 0xff);
+            v >>= 8;
+            stream.write(v & 0xff);
+        }
+
+        @Override
+        public void writeInt(OutputStream stream, int value) throws IOException {
+            int v = value;
+            stream.write(v & 0xff);
+            v >>= 8;
+            stream.write(v & 0xff);
+            v >>= 8;
+            stream.write(v & 0xff);
+            v >>= 8;
+            stream.write(v & 0xff);
+        }
+
+        @Override
+        public void writeLong(OutputStream stream, long value) throws IOException {
+            long v = value;
+            stream.write((int) v & 0xff);
+            v >>= 8;
+            stream.write((int) v & 0xff);
+            v >>= 8;
+            stream.write((int) v & 0xff);
+            v >>= 8;
+            stream.write((int) v & 0xff);
+            v >>= 8;
+            stream.write((int) v & 0xff);
+            v >>= 8;
+            stream.write((int) v & 0xff);
+            v >>= 8;
+            stream.write((int) v & 0xff);
+            v >>= 8;
+            stream.write((int) v & 0xff);
+        }
+
+        @Override
+        public byte[] toBytes(short value) {
+            short v = value;
+            final byte[] bytes = new byte[2];
+            bytes[0] = (byte) (v & 0xff);
+            v >>= 8;
+            bytes[1] = (byte) (v & 0xff);
+            return bytes;
+        }
+
+        @Override
+        public byte[] toBytes(int value) {
+            int v = value;
+            final byte[] bytes = new byte[4];
+            bytes[0] = (byte) (v & 0xff);
+            v >>= 8;
+            bytes[1] = (byte) (v & 0xff);
+            v >>= 8;
+            bytes[2] = (byte) (v & 0xff);
+            v >>= 8;
+            bytes[3] = (byte) (v & 0xff);
+            return bytes;
+        }
+
+        @Override
+        public byte[] toBytes(long value) {
+            long v = value;
+            final byte[] bytes = new byte[8];
+            bytes[0] = (byte) (v & 0xff);
+            v >>= 8;
+            bytes[1] = (byte) (v & 0xff);
+            v >>= 8;
+            bytes[2] = (byte) (v & 0xff);
+            v >>= 8;
+            bytes[3] = (byte) (v & 0xff);
+            v >>= 8;
+            bytes[4] = (byte) (v & 0xff);
+            v >>= 8;
+            bytes[5] = (byte) (v & 0xff);
+            v >>= 8;
+            bytes[6] = (byte) (v & 0xff);
+            v >>= 8;
+            bytes[7] = (byte) (v & 0xff);
+            return bytes;
+        }
+
+        @Override
+        public void toBytes(short value, byte[] result, int offset) {
+            short v = value;
+            for (int i = 0; i < Shorts.SIZE && i < result.length; i++) {
+                result[i + offset] = (byte) (v & 0xff);
+                v >>= 8;
+            }
+        }
+
+        @Override
+        public void toBytes(int value, byte[] result, int offset) {
+            int v = value;
+            for (int i = 0; i < Ints.SIZE && i < result.length; i++) {
+                result[i + offset] = (byte) (v & 0xff);
+                v >>= 8;
+            }
+        }
+
+        @Override
+        public void toBytes(long value, byte[] result, int offset) {
+            long v = value;
+            for (int i = 0; i < Longs.SIZE && i < result.length; i++) {
+                result[i + offset] = (byte) (v & 0xff);
+                v >>= 8;
+            }
+        }
+
+        @Override
+        public int offsetWithinWord(WordWidth wordWidth, WordWidth dataWidth) {
+            return 0;
+        }
+
+        @Override
+        public ByteOrder asByteOrder() {
+            return ByteOrder.LITTLE_ENDIAN;
+        }
+    },
+    BIG {
+        @Override
+        public short readShort(InputStream stream) throws IOException {
+            final int high = readByte(stream);
+            final int low = readByte(stream) & 0xff;
+            return (short) ((high << 8) | low);
+        }
+
+        @Override
+        public int readInt(InputStream stream) throws IOException {
+            final int high = readShort(stream);
+            final int low = readShort(stream) & 0xffff;
+            return (high << 16) | low;
+        }
+
+        @Override
+        public long readLong(InputStream stream) throws IOException {
+            final long high = readInt(stream);
+            final long low = readInt(stream) & 0xffffffffL;
+            return (high << 32) | low;
+        }
+
+        @Override
+        public void writeShort(OutputStream stream, short value) throws IOException {
+            stream.write((value >> 8) & 0xff);
+            stream.write(value & 0xff);
+        }
+
+        @Override
+        public void writeInt(OutputStream stream, int value) throws IOException {
+            stream.write((value >> 24) & 0xff);
+            stream.write((value >> 16) & 0xff);
+            stream.write((value >> 8) & 0xff);
+            stream.write(value & 0xff);
+        }
+
+        @Override
+        public void writeLong(OutputStream stream, long value) throws IOException {
+            stream.write((int) (value >> 56) & 0xff);
+            stream.write((int) (value >> 48) & 0xff);
+            stream.write((int) (value >> 40) & 0xff);
+            stream.write((int) (value >> 32) & 0xff);
+            stream.write((int) (value >> 24) & 0xff);
+            stream.write((int) (value >> 16) & 0xff);
+            stream.write((int) (value >> 8) & 0xff);
+            stream.write((int) value & 0xff);
+        }
+
+        @Override
+        public byte[] toBytes(short value) {
+            short v = value;
+            final byte[] bytes = new byte[2];
+            bytes[1] = (byte) (v & 0xff);
+            v >>= 8;
+            bytes[0] = (byte) (v & 0xff);
+            return bytes;
+        }
+
+        @Override
+        public byte[] toBytes(int value) {
+            int v = value;
+            final byte[] bytes = new byte[4];
+            bytes[3] = (byte) (v & 0xff);
+            v >>= 8;
+            bytes[2] = (byte) (v & 0xff);
+            v >>= 8;
+            bytes[1] = (byte) (v & 0xff);
+            v >>= 8;
+            bytes[0] = (byte) (v & 0xff);
+            return bytes;
+        }
+
+        @Override
+        public byte[] toBytes(long value) {
+            long v = value;
+            final byte[] bytes = new byte[8];
+            bytes[7] = (byte) (v & 0xff);
+            v >>= 8;
+            bytes[6] = (byte) (v & 0xff);
+            v >>= 8;
+            bytes[5] = (byte) (v & 0xff);
+            v >>= 8;
+            bytes[4] = (byte) (v & 0xff);
+            v >>= 8;
+            bytes[3] = (byte) (v & 0xff);
+            v >>= 8;
+            bytes[2] = (byte) (v & 0xff);
+            v >>= 8;
+            bytes[1] = (byte) (v & 0xff);
+            v >>= 8;
+            bytes[0] = (byte) (v & 0xff);
+            return bytes;
+        }
+
+        @Override
+        public void toBytes(short value, byte[] result, int offset) {
+            short v = value;
+            int toIndex = offset + Shorts.SIZE - 1;
+            for (int i = 1; i <= Shorts.SIZE && i <= result.length; i++) {
+                result[toIndex--] = (byte) (v & 0xff);
+                v >>= 8;
+            }
+        }
+
+        @Override
+        public void toBytes(int value, byte[] result, int offset) {
+            int v = value;
+            int toIndex = offset + Ints.SIZE - 1;
+            for (int i = 1; i <= Ints.SIZE && i <= result.length; i++) {
+                result[toIndex--] = (byte) (v & 0xff);
+                v >>= 8;
+            }
+        }
+
+        @Override
+        public void toBytes(long value, byte[] result, int offset) {
+            long v = value;
+            int toIndex = offset + Longs.SIZE - 1;
+            for (int i = 1; i <= Longs.SIZE && i <= result.length; i++) {
+                result[toIndex--] = (byte) (v & 0xff);
+                v >>= 8;
+            }
+        }
+
+        @Override
+        public int offsetWithinWord(WordWidth wordWidth, WordWidth dataWidth) {
+            assert wordWidth.numberOfBytes >= dataWidth.numberOfBytes;
+            return wordWidth.numberOfBytes - dataWidth.numberOfBytes;
+        }
+
+        @Override
+        public ByteOrder asByteOrder() {
+            return ByteOrder.BIG_ENDIAN;
+        }
+    };
+
+    @Override
+    public String toString() {
+        return name().toLowerCase();
+    }
+
+    public byte readByte(InputStream stream) throws IOException {
+        final int result = stream.read();
+        if (result < 0) {
+            throw new IOException();
+        }
+        return (byte) result;
+    }
+
+    public abstract short readShort(InputStream stream) throws IOException;
+
+    public abstract int readInt(InputStream stream) throws IOException;
+
+    public abstract long readLong(InputStream stream) throws IOException;
+
+    public abstract void writeShort(OutputStream stream, short value) throws IOException;
+
+    public abstract void writeInt(OutputStream stream, int value) throws IOException;
+
+    public abstract void writeLong(OutputStream stream, long value) throws IOException;
+
+    public byte[] toBytes(byte value) {
+        final byte[] bytes = new byte[1];
+        bytes[0] = value;
+        return bytes;
+    }
+
+    public abstract byte[] toBytes(short value);
+
+    public abstract byte[] toBytes(int value);
+
+    public abstract byte[] toBytes(long value);
+
+    public void toBytes(byte value, byte[] result, int offset) {
+        if (result.length > 0) {
+            result[0] = value;
+        }
+    }
+
+    public abstract void toBytes(short value, byte[] result, int offset);
+
+    public abstract void toBytes(int value, byte[] result, int offset);
+
+    public abstract void toBytes(long value, byte[] result, int offset);
+
+    public abstract int offsetWithinWord(WordWidth wordWith, WordWidth dataWidth);
+
+    public abstract ByteOrder asByteOrder();
+}