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    • 1. 发明申请
    • EFFICIENT MEMORY HIERARCHY MANAGEMENT
    • 有效的记忆层次管理
    • WO2007085011A3
    • 2007-10-04
    • PCT/US2007060815
    • 2007-01-22
    • QUALCOMM INCMORROW MICHAEL WILLIAMSARTORIUS THOMAS ANDREW
    • MORROW MICHAEL WILLIAMSARTORIUS THOMAS ANDREW
    • G06F9/38G06F12/08
    • G06F9/3802G06F12/0848
    • In a processor, there are situations where instructions and some parts of a program may reside in a data cache prior to execution of the program. Hardware and software techniques are provided for fetching an instruction in the data cache after having a miss in an instruction cache to improve the processor's performance. If an instruction is not present in the instruction cache, an instruction fetch address is sent as a data fetch address to the data cache. If there is valid data present in the data cache at the supplied instruction fetch address, the data actually is an instruction and the data cache entry is fetched and supplied as an instruction to the processor complex. An additional bit may be included in an instruction page table to indicate on a miss in the instruction cache that the data cache should be checked for the instruction.
    • 在处理器中,在执行程序之前,存在指令和程序的某些部分驻留在数据高速缓存中的情况。 提供了硬件和软件技术,用于在指令高速缓存中缺少提取处理器性能之后,在数据高速缓存中取指令。 如果指令高速缓存中不存在指令,则将指令提取地址作为数据提取地址发送到数据高速缓存。 如果在提供的指令获取地址处存在数据高速缓存中的有效数据,则数据实际上是指令,并且将数据高速缓存条目作为指令提取并提供给处理器复合体。 在指令页表中可以包括额外的位,以指示在指令高速缓存中不应该对该指令检查数据高速缓存。