| 主权项 |
1. A reduced instruction set computer (RISC) processor comprising:
a register file, within the RISC processor, including a first packed data register and a second packed data register; register rename logic within the RISC processor; a decoder, within the RISC processor, to decode instructions, the instructions to include a first instruction; schedule logic, within the RISC processor, to queue operations that correspond to the instructions for execution; and execution logic, within the RISC processor, coupled to the decoder, the register rename logic, and the schedule logic, the execution logic to perform out-of-order execution of at least some of the instructions; wherein, responsive to a decode of the first instruction by the decoder, the execution logic is to convert a first plurality of packed signed data elements to be stored in the first packed data register to a second plurality of packed unsigned data elements in the second packed data register, one or more of the second plurality of packed unsigned data elements to be saturated; the first plurality of packed signed data elements to include floating point data elements and the second plurality of packed unsigned data elements to include integer data elements; at least one of the packed signed data elements to have a first number of bits, at least one of the packed unsigned data elements to have a second number of bits, wherein the second number of bits is one half the first number of bits. |
