SYSTEMS, DEVICES, AND METHODS FOR DUAL COMPLEX THROUGH COMPLEX CONJUGATION MULTIPLICATION OF SIGNATURE WORDS

摘要

Embodiments of systems, apparatus, and methods for a dual complex number by complex conjugate multiplication in a processor are described. For example, an execution circuit executes a decoded instruction for: multiplexing data values from a plurality of packed data item locations in the first and second packed data source operands to at least one multiplier circuit, the first and second packed data source operands comprising a plurality of Pairing complex numbers, each pair of complex numbers having data values at common positions of packed data elements in the first and second packed data source operands; Calculating a real part and an imaginary part of a product of a first complex number and a complex conjugation of a second complex number; and storing the real part in a first position of packed data elements in the destination operand and storing the imaginary part in a second position of packed data elements in the destination operand.