OCW2_ILS
OCW2_ILS(irq & 7));
OCW2_SELECT | OCW2_EOI | OCW2_SL | OCW2_ILS(irq));
OCW2_ILS((isa_vector & 7)));
OCW2_SELECT | OCW2_EOI | OCW2_SL | OCW2_ILS(isa_vector));
OCW2_SELECT | OCW2_R | OCW2_SL OCW2_ILS(3 - 1));
OCW2_ILS(irq - 8));
OCW2_SELECT | OCW2_SL | OCW2_EOI | OCW2_ILS(irq));
OCW2_SELECT | OCW2_EOI | OCW2_SL | OCW2_ILS(bit & 7);
OCW2_SELECT | OCW2_EOI | OCW2_SL | OCW2_ILS(bit);
OCW2_ILS(irq & 7));
OCW2_SELECT | OCW2_EOI | OCW2_SL | OCW2_ILS(irq));
OCW2_ILS(3 - 1));