Shared memory interface with conventional access and synchronization support

摘要: Disclosed is an apparatus and method for providing synchronization support in a multiprocessor environment using memory interface that supports atomic read-modify-write operation as well conventional read write access to memory. Selection of the made dependent on which ever address plurality addresses used reference single physical location there stored lock variable restrict shared resource. When particular corresponds operation, out modified version written back into condition resource available requesting processor. The executes operations by logic circuitry response processor operation. Through these or otherwise indivisible operations, precludes conflict.