公开(公告)号：EP0927937A1

公开(公告)日：1999-07-07

申请号：EP98310189.0

申请日：1998-12-11

Applicant: STMicroelectronics Limited

Inventor： McIntosh-Smith, Simon

IPC: G06F12/08

CPC classification number: G06F12/0848 ,  G06F12/0842 ,  Y10T74/1519 ,  Y10T74/1531

Abstract: A method and computer for processing an incoming data stream, for example of video or audio data is described. A system memory is divided into first and second memory spaces, the first memory space for holding a data stream and the second memory space for holding a set of program data. A cache has first and second partitions allocated exclusively respectively to the first and second memory spaces. In this manner, when the data stream is transferred between an execution unit and the main memory, program data is not evicted from the cache.

Abstract translation: 描述了用于处理输入数据流（例如视频或音频数据）的方法和计算机。 系统存储器分为第一和第二存储器空间，用于保存数据流的第一存储器空间和用于保存一组程序数据的第二存储器空间。 高速缓存具有分配给第一和第二存储器空间的第一和第二分区。 以这种方式，当数据流在执行单元和主存储器之间传送时，程序数据不会从高速缓存中逐出。