Pre-fetch control device, data processing apparatus and...

Details Pre-fetch control device, data processing apparatus and... Pre-fetch control device, data processing apparatus and...

2007-07-17

2007-07-17

Peugh, Brian R. (Department: 2187)

Electrical computers and digital processing systems: memory

Storage accessing and control

Hierarchical memories

C711S217000

Reexamination Certificate

active

10368751

ABSTRACT:
The present invention realizes pre-fetch based on a high-accuracy prediction. A plurality of address values are registered in advance in a pre-fetch address queue, based on previous memory accesses. If a request address from the processor unit of a request address register matches this address value, a pre-fetch address obtained by adding a block size to the request address is output to a secondary cache as a pre-fetch request. This pre-fetch address is written back into the pre-fetch address queue.

REFERENCES:
patent: 5345560 (1994-09-01), Miura et al.
patent: 5412786 (1995-05-01), Kusano
patent: 5623608 (1997-04-01), Ng
patent: 6173392 (2001-01-01), Shinozaki
patent: 6748463 (2004-06-01), Tsuboi et al.
patent: 6785772 (2004-08-01), Venkumahanti et al.
patent: A-6-28180 (1994-02-01), None
patent: A-6-75853 (1994-03-01), None
patent: A-6-168119 (1994-06-01), None
patent: A-11-167520 (1999-06-01), None

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