Line fill techniques

Details Line fill techniques Line fill techniques

2006-08-30

2009-06-23

Verbrugge, Kevin (Department: 2189)

Electrical computers and digital processing systems: memory

Storage accessing and control

Hierarchical memories

C711S118000

Reexamination Certificate

active

07552285

ABSTRACT:
A line fill method, line fill unit and data processing apparatus are disclosed. The line fill method, comprises the steps of: a) associating a line fill buffer with a unique identifier; b) initiating a line fill request to provide said line fill buffer with line fill data, said line fill request having said unique identifier associated therewith; and c) in the event that said line fill buffer is filled with said line fill data prior to said line fill data having been returned in response to said line fill request, associating said line fill buffer with a different unique identifier to enable a subsequent line fill request to be initiated. By enabling the line fill buffer to be associated with different unique identifiers, the line fill buffer can initiate a new request despite the previous request not having been completed without there being any concern that the returned data may be misallocated. This enables multiple line fill requests to be simultaneously pending and subsequent line fill requests to be initiated whilst previous line fill requests are outstanding. Accordingly, subsequent line fill requests may be initiated earlier than would have been possible had the line fill buffer had to wait for all of the line fill data associated with each line fill request to be returned.

REFERENCES:
patent: 5133061 (1992-07-01), Melton et al.
patent: 6792452 (2004-09-01), Philyaw

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