public PIC8259A() {
final SimpleResourceOwner owner = new SimpleResourceOwner("PIC8259A");
try {
final ResourceManager rm = InitialNaming.lookup(ResourceManager.NAME);
io8259_A = rm.claimIOResource(owner, 0x20, 1); // 0xA0
io8259_B = rm.claimIOResource(owner, 0xA0, 1);
} catch (NameNotFoundException ex) {
throw new Error("Cannot find ResourceManager", ex);
} catch (ResourceNotFreeException ex) {
throw new Error("Cannot claim PIC0-IO ports", ex);