SIMD ARITHMETIC SYSTEM CAPABLE OF DESIGNATING PLURAL REGISTERS

摘要

PROBLEM TO BE SOLVED: To reduce a factor for preventing SIMD operation effects, such as data arrangement in a register in the acceleration of a SIMD processor. SOLUTION: Many pieces of data can be supplied to a data arrangement operation pipe 211 and a data arrangement operation can be fast carried out by dividing a register file into four banks so as to designate a plurality of registers with one operand to simultaneously access four registers. It is also possible to efficiently arrange a large amount of data to be supplied by defining a new data pack instruction/data unpack instruction/data rearrangement instruction. It is further possible to define a product-sum operation instruction by making the best use of the parallelism of a SIMD because of the above characteristic.