RotateDecoder.java 1.9 KB
Newer Older
D
duke 已提交
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43
/*
 * 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 RotateDecoder extends InstructionDecoder {

   public RotateDecoder(String name, int addrMode1, int operandType1) {
      super(name, addrMode1, operandType1);
   }
   public RotateDecoder(String name, int addrMode1, int operandType1, int addrMode2, int operandType2) {
      super(name, addrMode1, operandType1, addrMode2, operandType2);
   }
   protected Instruction decodeInstruction(byte[] bytesArray, boolean operandSize, boolean addrSize, X86InstructionFactory factory) {
      Operand op1 = getOperand1(bytesArray, operandSize, addrSize);
      Operand op2 = getOperand2(bytesArray, operandSize, addrSize);
      int size = byteIndex - instrStartIndex;
      return factory.newRotateInstruction(name, op1, (ImmediateOrRegister)op2, size, prefixes);
   }
}