×

Software prefetch system and method for predetermining amount of streamed data

  • US 6,574,712 B1
  • Filed: 04/14/2000
  • Issued: 06/03/2003
  • Est. Priority Date: 11/08/1999
  • Status: Expired due to Fees
First Claim
Patent Images

1. A data processing system comprising:

  • a processor having a load/store unit including a level one (L1) cache;

    a prefetch engine coupled to the load/store unit;

    a level two (L2) cache coupled to the L1 cache and the prefetch engine;

    a level three (L3) cache coupled to the L2 cache and to the prefetch engine; and

    circuitry operable for overriding the prefetch engine in response to a single instruction executed in the processor, wherein the overriding circuitry causes the prefetch engine to prefetch a predetermined stream of cache lines concurrently into the L1, L2, and L3 caches.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×