PLURAL MULTIPORT REGISTER FILE TO ACCOMMODATE DATA OF DIFFERING LENGTHS

摘要

A multiport register file includes a first file unit having registers of a first width and a second file unit having registers of a second width. The second width being less than the first width. Data is written to both the first and second file unit in one write operation and independently readable separately from the first and second file units. The first file unit accommodates data destined to be operands for functional units of a VLIW processor, or result data from those functional units. The second file unit accommodates guard bits for conditioning operation of those functional units.