Mercurial > hg > truffle
view agent/src/share/classes/sun/jvm/hotspot/asm/sparc/V9CMoveDecoder.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) 2002, 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.sparc; import sun.jvm.hotspot.asm.*; import sun.jvm.hotspot.utilities.Assert; abstract class V9CMoveDecoder extends InstructionDecoder implements V9InstructionDecoder { static private final String iccConditionNames[] = { "n", "e", "le", "l", "leu", "cs", "neg", "vs", "a", "ne", "g", "ge", "gu", "cc", "pos", "vc" }; static private final String fccConditionNames[] = { "fn", "fne", "flg", "ful", "fl", "fug", "fg", "fu", "fa", "fe", "fue", "fge", "fuge", "fle", "fule", "fo" }; static String getConditionName(int conditionCode, int conditionFlag) { return (conditionFlag == icc || conditionFlag == xcc) ? iccConditionNames[conditionCode] : fccConditionNames[conditionCode]; } static int getMoveConditionCode(int instruction) { return (instruction & CMOVE_COND_MASK) >>> CMOVE_COND_START_BIT; } static int getRegisterConditionCode(int instruction) { return (instruction & CMOVE_RCOND_MASK) >>> CMOVE_RCOND_START_BIT; } static ImmediateOrRegister getCMoveSource(int instruction, int numBits) { ImmediateOrRegister source = null; if (isIBitSet(instruction)) { source = new Immediate(new Short((short) extractSignedIntFromNBits(instruction, numBits))); } else { source = SPARCRegisters.getRegister(getSourceRegister2(instruction)); } return source; } static String getFloatTypeCode(int dataType) { String result = null; switch(dataType) { case RTLDT_FL_SINGLE: result = "s"; break; case RTLDT_FL_DOUBLE: result = "d"; break; case RTLDT_FL_QUAD: result = "q"; break; default: if (Assert.ASSERTS_ENABLED) Assert.that(false, "should not reach here"); } return result; } }