PACKED FINITE IMPULSE RESPONSE (FIR) FILTER PROCESSORS, METHODS, SYSTEMS, AND INSTRUCTIONS

摘要

A processor includes a decode unit to decode a packed finite impulse response (FIR) filter instruction that indicates one or more source packed data operands, a plurality of FIR filter coefficients, and a destination storage location. The source operand(s) include a first number of data elements and a second number of additional data elements. The second number is one less than a number of FIR filter taps. An execution unit, in response to the packed FIR filter instruction being decoded, is to store a result packed data operand. The result packed data operand includes the first number of FIR filtered data elements that each is to be based on a combination of products of the plurality of FIR filter coefficients and a different corresponding set of data elements from the one or more source packed data operands, which is equal in number to the number of FIR filter taps.

主权项

1. A processor comprising:
a decode unit to decode a packed finite impulse response (FIR) filter instruction, the packed FIR filter instruction to indicate one or more source packed data operands, a plurality of FIR filter coefficients, and a destination storage location, the one or more source packed data operands to include a first number of data elements and a second number of additional data elements, the second number to be one less than a number of FIR filter taps; and an execution unit coupled with the decode unit, the execution unit, in response to the packed FIR filter instruction being decoded by the decode unit, to store a result packed data operand in the destination storage location, the result packed data operand to include the first number of FIR filtered data elements, each of the FIR filtered data elements to be based on a combination of products of the plurality of FIR filter coefficients and a different corresponding set of data elements from the one or more source packed data operands, which is equal in number to the number of FIR filter taps.