Single Precision Vector Permute Immediate with "Word" Vector Write Mask
The present invention is generally related to integrated circuit devices, and more particularly, to methods, systems and design structures for the field of image processing, and more specifically to an instruction set for processing images. Vector processing may involve performing a plurality of permute operations to arrange vector operands in desired locations of a register prior to performing vector operation, for example, a cross product. The permute instructions may be dependent on one another and may require the use of temporary registers. Embodiments of the invention provide a permute instruction wherein a mask field may be used to specify a particular location of a target register in which to transfer data, thereby reducing the number of instructions for arranging data, reducing dependencies between instructions, and the usage of temporary registers.
1 . A design structure embodied in a machine readable storage medium for at least one of designing, manufacturing, and testing a design, the design structure comprising:
a system, comprising a plurality of processors communicably coupled with one another, wherein each processor comprises:
a register file comprising a plurality of registers; and
at least one vector unit, wherein the vector unit is configured to receive a permute instruction specifying at least one source register, a target register, and a write mask, the write mask identifying one or more locations in the target register, and execute the permute instruction by transferring data from at least one location of the at least one source register to the one or more locations of the target register identified by the write mask.
2 . The design structure of claim 1 , wherein the design structure comprises a netlist, which describes the system.
3 . The design structure of claim 1 , wherein the design structure resides on the storage medium as a data format used for the exchange of layout data of integrated circuits.
4 . The design structure of claim 1 , wherein the design structure includes at least one of test data files, characterization data, verification data, or design specifications.