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/*
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Copyright 2011 Martin Schoeberl <masca@imm.dtu.dk>,
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Technical University of Denmark, DTU Informatics.
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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1. Redistributions of source code must retain the above copyright notice,
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this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER ``AS IS'' AND ANY EXPRESS
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OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
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NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY
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DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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The views and conclusions contained in the software and documentation are
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those of the authors and should not be interpreted as representing official
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policies, either expressed or implied, of the copyright holder.
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*/
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package com.muvium.leros;
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/**
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* Interface to low-level IO devices. Only IO devices are
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* accessible, not memory.
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*
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* Similar to the JOP native interface.
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* @author martin
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*
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*/
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public class Native {
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public final static int LED_PORT = 0;
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public final static int BUTTON_PORT = 0;
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public final static int UART_STATUS = 2;
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public final static int UART_DATA = 3;
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/**
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* Read from an IO device.
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* Only 8 bit address and 16 bit data are used.
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* @param address
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* @return
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*/
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public static native int rd(int address);
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/**
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* Write to an IO device.
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* Only 8 bit address and 16 bit data are used.
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* @param data
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* @param address
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*/
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public static native void wr(int data, int address);
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}
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