Mercurial > hg > truffle
view agent/src/share/classes/sun/jvm/hotspot/asm/x86/FloatGRPDecoder.java @ 210:05712c37c828
6676016: ParallelOldGC leaks memory
Summary: ensure that GCTask threads release resource and handle memory
Reviewed-by: jmasa, chrisphi
author | jcoomes |
---|---|
date | Wed, 18 Jun 2008 18:36:47 -0700 |
parents | a61af66fc99e |
children | c18cbe5936b8 |
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/* * Copyright 2002-2003 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.asm.x86; import sun.jvm.hotspot.asm.*; public class FloatGRPDecoder extends FPInstructionDecoder { final private int number; //Please refer to IA-32 Intel Architecture Software Developer's Manual Volume 2 //APPENDIX A - Escape opcodes private static final FPInstructionDecoder floatGRPMap[][] = { /* d9_2 */ { new FPInstructionDecoder("fnop"), null, null, null, null, null, null, null }, /* d9_4 */ { new FPInstructionDecoder("fchs"), new FPInstructionDecoder("fabs"), null, null, new FPInstructionDecoder("ftst"), new FPInstructionDecoder("fxam"), null, null }, /* d9_5 */ { new FPInstructionDecoder("fld1"), new FPInstructionDecoder("fldl2t"), new FPInstructionDecoder("fldl2e"), new FPInstructionDecoder("fldpi"), new FPInstructionDecoder("fldlg2"), new FPInstructionDecoder("fldln2"), new FPInstructionDecoder("fldz"), null }, /* d9_6 */ { new FPInstructionDecoder("f2xm1"), new FPInstructionDecoder("fyl2x"), new FPInstructionDecoder("fptan"), new FPInstructionDecoder("fpatan"), new FPInstructionDecoder("fxtract"), new FPInstructionDecoder("fprem1"), new FPInstructionDecoder("fdecstp"), new FPInstructionDecoder("fincstp") }, /* d9_7 */ { new FPInstructionDecoder("fprem"), new FPInstructionDecoder("fyl2xp1"), new FPInstructionDecoder("fsqrt"), new FPInstructionDecoder("fsincos"), new FPInstructionDecoder("frndint"), new FPInstructionDecoder("fscale"), new FPInstructionDecoder("fsin"), new FPInstructionDecoder("fcos") }, /* da_5 */ { null, new FPInstructionDecoder("fucompp"), null, null, null, null, null, null }, /* db_4 */ { new FPInstructionDecoder("feni(287 only)"), new FPInstructionDecoder("fdisi(287 only)"), new FPInstructionDecoder("fNclex"), new FPInstructionDecoder("fNinit"), new FPInstructionDecoder("fNsetpm(287 only)"), null, null, null }, /* de_3 */ { null, new FPInstructionDecoder("fcompp"), null, null, null, null, null, null }, /* df_4 */ { new FPInstructionDecoder("fNstsw"), null, null, null, null, null, null, null } }; public FloatGRPDecoder(String name, int number) { super(name); this.number = number; } public Instruction decode(byte[] bytesArray, int index, int instrStartIndex, int segmentOverride, int prefixes, X86InstructionFactory factory) { this.byteIndex = index; this.instrStartIndex = instrStartIndex; this.prefixes = prefixes; int ModRM = readByte(bytesArray, byteIndex); int rm = ModRM & 7; FPInstructionDecoder instrDecoder = null; instrDecoder = floatGRPMap[number][rm]; Instruction instr = null; if(instrDecoder != null) { instr = instrDecoder.decode(bytesArray, byteIndex, instrStartIndex, segmentOverride, prefixes, factory); byteIndex = instrDecoder.getCurrentIndex(); } else { instr = factory.newIllegalInstruction(); } return instr; } }