公开(公告)号：US20170046156A1

公开(公告)日：2017-02-16

申请号：US14826199

申请日：2015-08-14

Applicant: QUALCOMM Incorporated

Inventor： Eric Wayne MAHURIN ,  Lucian CODRESCU ,  Erich James PLONDKE ,  David HOYLE ,  Mao ZENG ,  Kim-Chyan GAN

IPC: G06F9/30

CPC classification number: G06F9/30036 ,  G06F9/30003 ,  G06F9/3004

Abstract: Systems and methods pertain to looking up entries of a table. A processor receives one or more single instruction multiple data (SIMD) instructions, including a first SIMD instruction which specifies a first subset of indices. A first subset of table entries is looked up, using a crossbar, with the first subset of indices. A first vector output of the first SIMD instruction is based on whether the outputs of the crossbar belong to a desired subset of table entries. Similarly, second, third, and fourth SIMD instructions specify corresponding second, third, and fourth subsets of indices to lookup the remaining table entries using the crossbar. The size of the crossbar is based on the number of indices in the subset of indices used to lookup table entries.

Abstract translation: 系统和方法属于查找表的条目。 处理器接收一个或多个单指令多数据（SIMD）指令，包括指定索引的第一子集的第一SIMD指令。 使用交叉开关查找表条目的第一个子集，并使用索引的第一个子集。 第一SIMD指令的第一矢量输出基于交叉开关的输出是否属于表条目的期望子集。 类似地，第二，第三和第四SIMD指令指定相应的第二，第三和第四索引子集，以使用横杠来查找剩余的表条目。 交叉开关的大小基于用于查找表条目的索引子集中的索引数。

公开(公告)号：US20250096937A1

公开(公告)日：2025-03-20

申请号：US18470172

申请日：2023-09-19

Applicant: QUALCOMM Incorporated

Inventor： Dinesh DHARMARAJU ,  Anthony FANOUS ,  David HOYLE

IPC: H04L1/00 ,  G06F7/58

Abstract: Aspects described herein relate to selecting a base representation for an advance offset of a shift register sequence, generating the shift register sequence corresponding to the advance offset based at least in part on the base representation, and processing a signal based at least in part on the shift register sequence.