Mercurial > hg > truffle
view agent/src/share/classes/sun/jvm/hotspot/runtime/Bytes.java @ 579:0fbdb4381b99
6814575: Update copyright year
Summary: Update copyright for files that have been modified in 2009, up to 03/09
Reviewed-by: katleman, tbell, ohair
author | xdono |
---|---|
date | Mon, 09 Mar 2009 13:28:46 -0700 |
parents | a61af66fc99e |
children | c18cbe5936b8 |
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/* * Copyright 2001 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, * CA 95054 USA or visit www.sun.com if you need additional information or * have any questions. * */ package sun.jvm.hotspot.runtime; import sun.jvm.hotspot.debugger.*; /** Encapsulates some byte-swapping operations defined in the VM */ public class Bytes { private boolean swap; public Bytes(MachineDescription machDesc) { swap = !machDesc.isBigEndian(); } /** Should only swap if the hardware's underlying byte order is different from Java's */ public short swapShort(short x) { if (!swap) return x; return (short) (((x >> 8) & 0xFF) | (x << 8)); } /** Should only swap if the hardware's underlying byte order is different from Java's */ public int swapInt(int x) { if (!swap) return x; return (swapShort((short) x) << 16) | (swapShort((short) (x >> 16)) & 0xFFFF); } /** Should only swap if the hardware's underlying byte order is different from Java's */ public long swapLong(long x) { if (!swap) return x; return (swapInt((int) x) << 32) | (swapInt((int) (x >> 32)) & 0xFFFFFFFF); } }