maindec-08-d1gb-d	PDP-8, 8/I, 8/S Extended Memory Control Test
		maindec-08-d1gb-pb	PDP-8, 8/I, 8/S Extended Memory Control Test
		maindec-08-d1gd-d	PDP-8, 8/I, 8/S Extended Memory Control Test
		maindec-08-d1gd-pb	PDP-8, 8/I, 8/S Extended Memory Control Test
		maindec-08-d1gd-dn1	PDP-8, 8/I, 8/S Extended Memory Control Test