maindec-8e-d1bc-d	KM8E 4K Extended Memory Checkerboard
		maindec-8e-d1bc-pb	KM8E 4K Extended Memory Checkerboard
		maindec-8e-d1bb-d	KM8E 4K Extended Memory Checkerboard
		maindec-8e-d1bb-pb	KM8E 4K Extended Memory Checkerboard