Storage array tile supporting systolic movement operations

A method of operation of a storage tile for use in a storage array, the method comprising:

• first receiving a request specifying a first address for a first value;
• responsive to the request, determining whether or not the first value is present in the storage tile;
• responsive to determining that the first value is present in the storage tile, retrieving the first value from the storage tile and providing the first value at a first output of the storage tile;
• responsive to determining that the first value is not present in the storage tile, providing a copy of the request at the first output of the storage tile;
• second receiving a push-back second value and an address of the second value;
• responsive to the second receiving, determining whether or not the storage tile has an empty location;
• responsive to determining that the storage tile has an empty location, storing the push-back second value and the address of the second value;
• responsive to determining that the storage tile does not have an empty location, retrieving a push-back third value from a location in the storage tile and a corresponding address;
• further responsive to determining that the storage tile does not have an empty location, providing the push-back third value and the corresponding address at a second output of the storage tile;
• and
• further responsive to determining that the storage tile does not have an empty location, storing the push-back second value in the location previously occupied by the push-back third value.

A processing system, comprising:

• a processor for executing program instructions and operating on data values;
• and
• a cache memory for caching values including at least one of the program instructions or the data values, wherein the cache memory is formed by multiple storage tiles corresponding to a single level of storage access that provides for arbitrary access to any one of the multiple storage elements, wherein values stored within the cache memory are associated with unique corresponding ones of the multiple storage tiles, and wherein the tiles comprise at least one storage cell for storing one or more of the values, at least one input for receiving a request specifying a first address for a first value and receiving a push-back second value and an address of the second value, at least one output for providing the first value in response to the request or forwarding the request, and control logic responsive to the request such that, if the first value is present in the at least one storage cell, the first value is retrieved from the at least one storage cell and provided at the at least one output and if the first value is not present in the at least one storage cell, a copy of the request is provided at the at least one output, wherein the control logic is further responsive to the push-back second value, such that if one of the at least one storage cell is empty, the push-back second value and the address of the second value are stored, and if the at least one storage cell is full, the second value and the address of the second value are stored in the at least one storage cell and a value from the at least one storage cell is provided at the at least one output along with a corresponding address as a push-back third value and corresponding address.