/***
* Copyright 2002-2010 jamod development team
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
***/
package net.wimpi.modbus.procimg;
/**
* Abstract class for a register.
*
* @author Dieter Wimberger
* @version @version@ (@date@)
*/
public abstract class AbstractRegister implements Register {
/**
* The word (<tt>byte[2]</tt>) holding the register content.
*/
protected byte[] m_Register = new byte[2];
@Override
public int getValue() {
return ((m_Register[0] & 0xff) << 8 | (m_Register[1] & 0xff));
}// getValue
@Override
public final int toUnsignedShort() {
return ((m_Register[0] & 0xff) << 8 | (m_Register[1] & 0xff));
}// toUnsignedShort
@Override
public final void setValue(int v) {
m_Register[0] = (byte) (0xff & (v >> 8));
m_Register[1] = (byte) (0xff & v);
}// setValue
@Override
public final short toShort() {
return (short) ((m_Register[0] << 8) | (m_Register[1] & 0xff));
}// toShort
@Override
public final void setValue(short s) {
m_Register[0] = (byte) (0xff & (s >> 8));
m_Register[1] = (byte) (0xff & s);
}// setValue
@Override
public byte[] toBytes() {
return m_Register;
}// toBytes
@Override
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