EFFICIENT METHOD AND APPARATUS FOR EMPLOYING A MICRO-OP CACHE IN A PROCESSOR
    2.
    发明申请
    EFFICIENT METHOD AND APPARATUS FOR EMPLOYING A MICRO-OP CACHE IN A PROCESSOR 有权
    在处理器中使用微型高速缓存的有效方法和设备

    公开(公告)号:US20090249036A1

    公开(公告)日:2009-10-01

    申请号:US12060239

    申请日:2008-03-31

    IPC分类号: G06F9/30

    摘要: Methods and apparatus for using micro-op caches in processors are disclosed. A tag match for an instruction pointer retrieves a set of micro-op cache line access tuples having matching tags. The set is stored in a match queue. Line access tuples from the match queue are used to access cache lines in a micro-op cache data array to supply a micro-op queue. On a micro-op cache miss, a macroinstruction translation engine (MITE) decodes macroinstructions to supply the micro-op queue. Instruction pointers are stored in a miss queue for fetching macroinstructions from the MITE. The MITE may be disabled to conserve power when the miss queue is empty-likewise for the micro-op cache data array when the match queue is empty. Synchronization flags in the last micro-op from the micro-op cache on a subsequent micro-op cache miss indicate where micro-ops from the MITE merge with micro-ops from the micro-op cache.

    摘要翻译: 公开了在处理器中使用微操作高速缓存的方法和装置。 指令指针的标签匹配检索一组具有匹配标签的微操作高速缓存行访问元组。 该集合存储在匹配队列中。 来自匹配队列的线路访问元组用于访问微操作高速缓存数据阵列中的高速缓存行以提供微操作队列。 在微操作缓存未命中时,宏指令转换引擎(MITE)解码宏指令以提供微操作队列。 指令指针存储在从MITE获取宏指令的小队列中。 当缺席队列为空时,MITE可能会被禁用以节省电力,而当匹配队列为空时,也可以为微操作高速缓存数据阵列。 随后微操作高速缓存未命中的微操作高速缓存中的最后一个微操作中的同步标志指示来自MITE的微操作与微操作高速缓存的微操作合并。

    Efficient method and apparatus for employing a micro-op cache in a processor
    4.
    发明授权
    Efficient method and apparatus for employing a micro-op cache in a processor 有权
    在处理器中采用微操作高速缓存的高效方法和装置

    公开(公告)号:US08103831B2

    公开(公告)日:2012-01-24

    申请号:US12060239

    申请日:2008-03-31

    IPC分类号: G06F12/00

    摘要: Methods and apparatus for using micro-op caches in processors are disclosed. A tag match for an instruction pointer retrieves a set of micro-op cache line access tuples having matching tags. The set is stored in a match queue. Line access tuples from the match queue are used to access cache lines in a micro-op cache data array to supply a micro-op queue. On a micro-op cache miss, a macroinstruction translation engine (MITE) decodes macroinstructions to supply the micro-op queue. Instruction pointers are stored in a miss queue for fetching macroinstructions from the MITE. The MITE may be disabled to conserve power when the miss queue is empty-likewise for the micro-op cache data array when the match queue is empty. Synchronization flags in the last micro-op from the micro-op cache on a subsequent micro-op cache miss indicate where micro-ops from the MITE merge with micro-ops from the micro-op cache.

    摘要翻译: 公开了在处理器中使用微操作高速缓存的方法和装置。 指令指针的标签匹配检索一组具有匹配标签的微操作高速缓存行访问元组。 该集合存储在匹配队列中。 来自匹配队列的线路访问元组用于访问微操作高速缓存数据阵列中的高速缓存行以提供微操作队列。 在微操作缓存未命中时,宏指令转换引擎(MITE)解码宏指令以提供微操作队列。 指令指针存储在从MITE获取宏指令的小队列中。 当缺席队列为空时,MITE可能会被禁用以节省电力,而当匹配队列为空时,也可以为微操作高速缓存数据阵列。 随后微操作高速缓存未命中的微操作高速缓存中的最后一个微操作中的同步标志指示来自MITE的微操作与微操作高速缓存的微操作合并。