[ros-diffs] [ion] 23695: - The last piece of the puzzle: we had to initialize the IDR in HalInitProcessor to set it to the default of 0xFFFFFFB so that we don't get IRQ 0 and IRQ 1 until we're ready to handle them, which was causing the clock interrupt to be called too early. - Remove irqhand.S and all other remaining pieces of deprecated code.