PinNoise.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plugin[<!ELEMENT plugin (instance, reference*, code)>
<!ATTLIST plugin version CDATA "1.0">
<!ELEMENT instance EMPTY>
<!ATTLIST instance class CDATA #REQUIRED>
<!ELEMENT reference EMPTY>
<!ATTLIST reference name CDATA #REQUIRED>
<!ELEMENT code (#PCDATA)>
<!ATTLIST code codeFileName CDATA #IMPLIED>]>
<plugin version="1.0">
  <instance class="PinNoise" />
  <code><![CDATA[//Assemblies needed for GEAR plugin system.
using Gear.EmulationCore;
using Gear.PluginSupport;

//Class declaration of plugin.
class PinNoise : PluginBase
{

	private int Drive;
	private bool Clock;
	private double last;

	//Constructor for plugin initialization.
	public PinNoise(PropellerCPU chip) : base(chip)
	{
		Drive = 0;
		Clock = false;
		last = 0.0;
	}

	//Title to be shown in tab.
	public override string Title
	{
		get { return "Pin Noise"; }
	}

	//Register the events to be notified to this plugin.
	public override void PresentChip()
	{
		NotifyOnPins();
		NotifyOnClock();
	}

	//Called every time a pin changes, only if it was registered on
	//method PresentChip() above.
	public override void OnPinChange(double time, PinState[] pinStates)
	{
		Drive++;
		if (Drive % 3 == 0)
		{
			// DrivePin(int pin_number, bool isFloating, bool isHigh)
			DrivePin(3, false, (Drive & 1) == 1);
		}
	}

	//Called every clock tick, only if it was registered on method
	//PresentChip() above.
	public override void OnClock(double time, uint sysCounter)
	{
		if (time - last >= 0.00001)
		{
			last += 0.00001;
			Clock = !Clock;
			DrivePin(2, false, Clock);
		}
	}
}
]]></code>
</plugin>