uk.co.javagear
Class ToneGenerator

java.lang.Object
  uk.co.javagear.ToneGenerator

public final class ToneGenerator
extends java.lang.Object

Texas SN76496 Tone Generator Emulation.

Version:

18th January 2003

Author:

Copyright (C) 2002-2003 Chris White

See Also:

"JavaGear Final Project Report"

Field Summary

private boolean	amplitudeFlipFlop Positive/Negative output.
private double	counter Counter for square waves.
private boolean	enabled Channel enabled.
private int	firstByte First byte of frequency.
private int	frequency Frequency of channel.
private double	psgCycles PSG cycles per sample.
private int	volume Volume of channel.

Constructor Summary

ToneGenerator(double clockSpeed, int sampleRate)
ToneGenerator Constructor.

Method Summary

int	getFirstByte() Getter for property firstByte.
int	getFrequency() Getter for property frequency.
int	getSample() Return a single sample from Tone Generator.
int	getVolume() Getter for property volume.
void	reset() Reset Tone Generator to Default Values.
void	setEnabled() Toggle Channel On/Off.
void	setFirstByte(int firstByte) Setter for property firstByte.
void	setFreqSigf(int value) Set significant bits of frequency.
void	setFrequency(int frequency) Setter for property frequency.
void	setVolume(int volume) Setter for property volume.

Methods inherited from class java.lang.Object

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

Field Detail

volume

private int volume

Volume of channel.

frequency

private int frequency

Frequency of channel.

firstByte

private int firstByte

First byte of frequency.

counter

private double counter

Counter for square waves.

amplitudeFlipFlop

private boolean amplitudeFlipFlop

Positive/Negative output.

psgCycles

private double psgCycles

PSG cycles per sample.

enabled

private boolean enabled

Channel enabled.

Constructor Detail

ToneGenerator

public ToneGenerator(double clockSpeed,
                     int sampleRate)

ToneGenerator Constructor.

Parameters:

clockSpeed - clock speed (Hz)

sampleRate - sample rate (Hz)

Method Detail

reset

public void reset()

Reset Tone Generator to Default Values.

setEnabled

public void setEnabled()

Toggle Channel On/Off.

setFreqSigf

public void setFreqSigf(int value)

Set significant bits of frequency.

Parameters:

value - high byte.

getSample

public int getSample()

Return a single sample from Tone Generator.

Returns:

Sample (-15 to +15)

getVolume

public int getVolume()

Getter for property volume. The channel's volume.

Returns:

Value of property volume. The channel's volume.

setVolume

public void setVolume(int volume)

Setter for property volume. The channel's volume.

Parameters:

volume - New value of property volume. The channel's volume.

getFrequency

public int getFrequency()

Getter for property frequency. The channel's frequency.

Returns:

Value of property frequency. The channel's frequency.

setFrequency

public void setFrequency(int frequency)

Setter for property frequency. The channel's frequency.

Parameters:

frequency - New value of property frequency. The channel's frequency.

getFirstByte

public int getFirstByte()

Getter for property firstByte. First byte of frequency.

Returns:

Value of property firstByte. First byte of frequency.

setFirstByte

public void setFirstByte(int firstByte)

Setter for property firstByte. First byte of frequency.

Parameters:

firstByte - New value of property firstByte. First byte of frequency.