Storage device and cache memory device in set associative system
AssigneeFujitsu Limited
InventorsMegumi Yokoi, Masaki Ukai
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Abstract
A storage device in a set associative system includes N-pieces (N is an integer of 2 or larger) of ways each having a plurality of entries containing at least replace flags and predetermined data, an acquisition unit acquiring the replace flags contained in the entries specified by the same address from the N-pieces of ways, and a selection unit selecting a replace target way on the basis of the replace flags acquired by the acquisition unit.
Claims14
A storage device in a set associative system, comprising:
- N-pieces (N is an integer of 2 or larger) of ways each having a plurality of entries containing at least replace flags and predetermined data;
- an acquisition unit acquiring the replace flags contained in the entries specified by the same address from said N-pieces of ways;
- and
- a selection unit selecting a replace target way on the basis of the replace flags acquired by said acquisition unit.
A cache memory device in a set associative system, comprising:
- N-pieces (N is an integer of 2 or larger) of ways each having a plurality of entries containing at least replace flags and predetermined data;
- an acquisition unit acquiring the replace flags contained in the entries specified by the same address from said N-pieces of ways;
- and
- a selection unit selecting a replace target way on the basis of the replace flags acquired by said acquisition unit.
A replace target way selection method in a storage device, in a set associative system, having N-pieces (N is an integer of 2 or larger) of ways each having a plurality of entries containing at least replace flags and predetermined data, said method comprising:
- acquiring the replace flags contained in the entries specified by the same address from said N-pieces of ways;
- and
- selecting a replace target way on the basis of the replace flags acquired by said acquisition.
Dependencies are inferred from the claim text.