Method and apparatus for efficiently providing data from a data

Details Method and apparatus for efficiently providing data from a data Method and apparatus for efficiently providing data from a data

1996-03-06

1998-12-08

Swann, Tod R.

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

711118, 711217, 711219, G06F 1200, G06F 1206

Patent

active

058484361

ABSTRACT:
A method and apparatus for causing a data line to be fetched in an order consistent with the data structure of a processor's modified little endian mode or big endian mode of operation is accomplished when the processor requests a particular word that is not currently stored in cache memory. The request includes an address of the particular word and an indication is provided as to whether the processor is operating in the modified little endian mode or the big endian mode. A memory manager, upon receiving the request, retrieves a line of data from memory (storage device) based on the address and the mode of operation. For example, when the big endian mode is used, the line of data is retrieved using a target word first ordering and when the modified little endian mode is used, the line of data is retrieved using a reverse target word first ordering.

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