A system for controlling memory accesses in a memory device in a multi-processor computer system comprises a memory controller and a data storage. The data storage comprises a plurality of memory lines. Each memory line has a check field for storing a GONE code that indicates that the data is held in...http://www.google.de/patents/US5895496?utm_source=gb-gplus-sharePatent US5895496 - System for an method of efficiently controlling memory accesses in a multiprocessor computer system
