Memory system including local and global caches for storing floating
point and integer data
    1.
    发明授权
    Memory system including local and global caches for storing floating point and integer data 失效
    内存系统包括用于存储浮点数和整型数据的本地和全局缓存

    公开(公告)号:US5510934A

    公开(公告)日:1996-04-23

    申请号:US168832

    申请日:1993-12-15

    IPC分类号: G06F12/08 G06F12/00 G06F13/00

    摘要: A split level cache memory system for a data processor includes a single chip integer unit, an army processor such as a floating point unit, an external main memory and a split level cache. The split level cache includes an on-chip, fast local cache with low latency for use by the integer unit for loads and stores of integer and address data and an off-chip, pipelined global cache for storing arrays of data such as floating point data for use by the array processor and integer and address data for refilling the local cache. Coherence between the local cache and global cache is maintained by writing through to the global cache during integer stores. Local cache words are invalidated when data is written to the global cache during an army processor store.

    摘要翻译: 用于数据处理器的分级高速缓冲存储器系统包括单个芯片整数单元,诸如浮点单元的陆军处理器,外部主存储器和分割级高速缓存。 分级高速缓存包括片上快速本地高速缓存,具有低延迟,用于整数单元用于整数和地址数据的加载和存储,以及用于存储诸如浮点数据的数据阵列的片外流水线全局高速缓存 供数组处理器使用,整数和地址数据用于重新填充本地缓存。 通过在整数存储期间写入全局缓存来维护本地缓存和全局缓存之间的一致性。 在陆军处理器存储期间将数据写入全局缓存时,本地缓存字无效。