公开(公告)号：US20140281391A1

公开(公告)日：2014-09-18

申请号：US13827867

申请日：2013-03-14

Applicant: QUALCOMM INCORPORATED

Inventor： James Norris Dieffenderfer ,  Michael William Morrow ,  Rodney Wayne Smith ,  Jeffery M. Schottmiller ,  Daniel S. Higdon ,  Michael Scott McIlvaine ,  Brian Michael Stempel ,  Kulin N. Kothari

IPC: G06F9/30

Abstract: A processor to a store constant value (immediate or literal) in a cache upon decoding a move immediate instruction in which the immediate is to be moved (copied or written) to an architected register. The constant value is stored in an entry in the cache. Each entry in the cache includes a field to indicate whether its stored constant value is valid, and a field to associate the entry with an architected register. Once a constant value is stored in the cache, it is immediately available for forwarding to a processor pipeline where a decoded instruction may need the constant value as an operand.

Abstract translation: 解码将立即数移动（复制或写入）到结构化寄存器的移动即时指令时，在缓存中存储恒定值（立即数或立即数）的处理器。 常量值存储在缓存中的条目中。 缓存中的每个条目包括一个字段，用于指示其存储的常量值是否有效，以及一个字段，用于将条目与架构化寄存器相关联。 一旦常数值被存储在高速缓存中，则立即可以转发到处理器流水线，其中解码的指令可能需要常数值作为操作数。