//License
/***
* Java Modbus Library (jamod)
* Copyright (c) 2002-2004, jamod development team
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* Neither the name of the author nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER AND CONTRIBUTORS ``AS
* IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
***/
package net.wimpi.modbus.procimg;
/**
* Abstract class for a register.
*
* @author Dieter Wimberger
* @version 1.2rc2 (14/04/2014)
*/
public abstract class AbstractRegister
implements Register {
/**
* The word (<tt>byte[2]</tt>) holding the register content.
*/
protected byte[] m_Register = new byte[2];
public int getValue() {
return ((m_Register[0] & 0xff) << 8 | (m_Register[1] & 0xff));
}//getValue
public final int toUnsignedShort() {
return ((m_Register[0] & 0xff) << 8 | (m_Register[1] & 0xff));
}//toUnsignedShort
public final void setValue(int v) {
m_Register[0] = (byte) (0xff & (v >> 8));
m_Register[1] = (byte) (0xff & v);
}//setValue
public final short toShort() {
return (short) ((m_Register[0] << 8) | (m_Register[1] & 0xff));
}//toShort
public final void setValue(short s) {
m_Register[0] = (byte) (0xff & (s >> 8));
m_Register[1] = (byte) (0xff & s);
}//setValue
public byte[] toBytes() {
return m_Register;
}//toBytes
public final void setValue(byte[] bytes) {
if (bytes.length < 2) {
throw new IllegalArgumentException();
} else {
m_Register[0] = bytes[0];
m_Register[1] = bytes[1];
}
}//setValue
}//class AbstractRegister