Packed rotate processors, methods, systems, and instructions

    公开(公告)号:US10324718B2

    公开(公告)日:2019-06-18

    申请号:US15864158

    申请日:2018-01-08

    Abstract: A method of an aspect includes receiving a masked packed rotate instruction. The instruction indicates a first source packed data including a plurality of packed data elements, a packed data operation mask having a plurality of mask elements, at least one rotation amount, and a destination storage location. A result packed data is stored in the destination storage location in response to the instruction. The result packed data includes result data elements that each correspond to a different one of the mask elements in a corresponding relative position. Result data elements that are not masked out by the corresponding mask element include one of the data elements of the first source packed data in a corresponding position that has been rotated. Result data elements that are masked out by the corresponding mask element include a masked out value. Other methods, apparatus, systems, and instructions are disclosed.

    Local power gate (LPG) interfaces for power-aware operations

    公开(公告)号:US10156884B2

    公开(公告)日:2018-12-18

    申请号:US15354018

    申请日:2016-11-17

    Abstract: Technologies for local power gate (LPG) interfaces for power-aware operations are described. A system on chip (SoC) includes a first functional unit, a second functional unit, and local power gate (LPG) hardware coupled to the first functional unit and the second functional unit. The LPG hardware is to power gate the first functional unit according to local power states of the LPG hardware. The second functional unit decodes a first instruction to perform a first power-aware operation of a specified length, including computing an execution code path for execution. The second functional unit monitors a current local power state of the LPG hardware, selects a code path based on the current local power state, the specified length, and a specified threshold, and issues a hint to the LPG hardware to power up the first functional unit and continues execution of the first power-aware operation without waiting for the first functional unit to be powered up.

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