public override void Execute(PICController controller)
{
PICWatchDogTimer wdt = controller.GetWatchDog();
wdt.Reset();
if (controller.GetUnbankedRegisterBit(PICMemory.ADDR_OPTION, PICMemory.OPTION_BIT_PSA))
{
controller.SetUnbankedRegisterBit(PICMemory.ADDR_OPTION, PICMemory.OPTION_BIT_PS0, false);
controller.SetUnbankedRegisterBit(PICMemory.ADDR_OPTION, PICMemory.OPTION_BIT_PS1, false);
controller.SetUnbankedRegisterBit(PICMemory.ADDR_OPTION, PICMemory.OPTION_BIT_PS2, false);
}
controller.SetUnbankedRegisterBit(PICMemory.ADDR_STATUS, PICMemory.STATUS_BIT_TO, true);
controller.SetUnbankedRegisterBit(PICMemory.ADDR_STATUS, PICMemory.STATUS_BIT_PD, true);
}