Method and system for implementing store buffer allocation

Details Method and system for implementing store buffer allocation Method and system for implementing store buffer allocation

2011-01-11

2011-01-11

Kindred, Alford W (Department: 2181)

Electrical computers and digital data processing systems: input/

Input/output data processing

Input/output data buffering

C710S056000

Reexamination Certificate

active

07870314

ABSTRACT:
A method and system for implementing store buffer allocation for variable length store data operations are provided. The method includes receiving a store address request and at least one store data request and stepping through data operations for each of the store data requests and an address range for the store data requests to determine alignment and data steering information used to select a storage buffer destination for the data in the store data requests. The method further includes determining availability of the storage buffer by maintaining a reservation list for each storage buffer, maintaining a count of the number of available entries for each storage buffer, updating the reservation list to reflect a reservation acceptance for designated available entries, and clearing entries upon completion of the processing of store data operations. The method also includes reserving the selected storage buffer when the number of available entries meets or exceeds the number of entries required for the data.

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Z/Architecture, Principles of Operation, Sixth Edition, Apr. 2007, Publication No. SA22-7832-05, copyright IBM Corp. 1990-2007, pp. 1-1218.

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