Mercurial > hg > truffle
view agent/src/share/classes/sun/jvm/hotspot/asm/x86/X86SegmentRegisters.java @ 3945:8ed53447f690
Merge
author | iveresov |
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date | Thu, 15 Sep 2011 12:44:09 -0700 |
parents | c18cbe5936b8 |
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/* * Copyright (c) 2003, 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 sun.jvm.hotspot.asm.x86; import sun.jvm.hotspot.utilities.*; public class X86SegmentRegisters { public static final int NUM_SEGMENT_REGISTERS = 6; public static final X86SegmentRegister ES; public static final X86SegmentRegister CS; public static final X86SegmentRegister SS; public static final X86SegmentRegister DS; public static final X86SegmentRegister FS; public static final X86SegmentRegister GS; private static X86SegmentRegister segmentRegisters[]; static { //Segment registers ES = new X86SegmentRegister(0, "%es"); CS = new X86SegmentRegister(1, "%cs"); SS = new X86SegmentRegister(2, "%ss"); DS = new X86SegmentRegister(3, "%ds"); FS = new X86SegmentRegister(4, "%fs"); GS = new X86SegmentRegister(5, "%gs"); segmentRegisters = (new X86SegmentRegister[] { ES, CS, SS, DS, FS, GS }); } public static int getNumberOfRegisters() { return NUM_SEGMENT_REGISTERS; } public static X86SegmentRegister getSegmentRegister(int regNum) { if (Assert.ASSERTS_ENABLED) { Assert.that(regNum > -1 && regNum < NUM_SEGMENT_REGISTERS, "invalid segment register number!"); } return segmentRegisters[regNum]; } }