avrora.sim
Class State.RWIOReg

java.lang.Object
  avrora.sim.State.RWIOReg

All Implemented Interfaces:

State.IOReg

Direct Known Subclasses:

ATMega128L.SimImpl.DirectionRegister, ATMega128L.SimImpl.PortRegister, ATMega128L.SimImpl.Timer0.ControlRegister, avrora.sim.Simulator.IMRReg

Enclosing class:

State

public static class State.RWIOReg

extends java.lang.Object

implements State.IOReg

The RWIOReg class is an implementation of an IO register that has the simple, default behavior of being able to read and write just as a general purpose register or byte in SRAM.

Field Summary

protected byte

value

Constructor Summary

State.RWIOReg()

Method Summary

void	clearBit(int num) The clearBit() method clears a single bit in the IO register.
byte	read() The read() method reads the 8-bit value of the IO register as a byte.
boolean	readBit(int num) The readBit() method reads a single bit from the IO register.
void	setBit(int num) The setBit() method sets a single bit in the IO register.
void	write(byte val) The write() method writes an 8-bit value to the IO register as a byte.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

value

protected byte value

Constructor Detail

State.RWIOReg

public State.RWIOReg()

Method Detail

read

public byte read()

The read() method reads the 8-bit value of the IO register as a byte. For simple RWIOReg instances, this simply returns the internally stored value.

Specified by:

read in interface State.IOReg

Returns:

the value of the register as a byte

write

public void write(byte val)

The write() method writes an 8-bit value to the IO register as a byte. For simple RWIOReg instances, this simply writes the internally stored value.

Specified by:

write in interface State.IOReg

Parameters:

val - the value to write

readBit

public boolean readBit(int num)

The readBit() method reads a single bit from the IO register.

Specified by:

readBit in interface State.IOReg

Parameters:

num - the number of the bit to read

Returns:

the value of the bit as a boolean

clearBit

public void clearBit(int num)

The clearBit() method clears a single bit in the IO register.

Specified by:

clearBit in interface State.IOReg

Parameters:

num - the number of the bit to clear

setBit

public void setBit(int num)

The setBit() method sets a single bit in the IO register.

Specified by:

setBit in interface State.IOReg

Parameters:

num - the number of the bit to clear