Allen Baum, William R Bryg, Michael J Mahon, Ruby B Lee, Steven S Muchnick: Cache memory with variable fetch and replacement schemes. Hewlett Packard Company, Roland I Griffin, Alan H Haggard, May 22, 1990: US04928239 (58 worldwide citation)

An instruction is presented to the cache; the instruction includes a cache control specifier which identifies a type of data being requested. Based on the cache control specifier, one of a plurality of replacement schemes is selected for swapping a data block out of the cache.

Steven S Muchnick, Terrence C Miller, William S Worley Jr: Method for addressing a number of address spaces. Hewlett Packard Co, Palo Alto California Usa, KUANG SHAOBO HUANG XIANGYANG, December 24, 1986: CN86103710

A computer system has the ability to access a large number of address spaces using a long pointer or to access a limited number of address spaces using a short pointer comprising a space specifier in a memory reference instruction. The two bit space specifier identifies a space register containing t ...