VECTOR FUNCTIONAL UNIT, METHOD, AND COMPUTING SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide a vector functional unit mounted on a semiconductor chip so as to execute an N-dimensional vector operation.SOLUTION: A vector functional unit includes: N functional units each of which includes a logic circuit; and a masking circuit that causes an output result to be presented from one that is selected out of the N functional units. Each of the logic circuits executes: a first integer multiply add instruction that presents a bit part on the most significant side of a first integer multiply add calculation but does not present a bit part on the least significant side; a second integer multiply add instruction that presents a bit part on the least significant side of a second integer multiply add calculation but does not present a bit part on the most significant side; and a floating-point multiply add instruction.