摘要:
A degeneration control device that controls degeneration of a cache having a plurality of ways based on an error that occurs in response to an access request, includes a cache line degeneration information memory unit, which stores cache line degeneration information that indicates whether a cache line constituting each of the plurality of ways is degenerated, and a degeneration control unit, which writes, when an error that occurs in response to the access request causes a predetermined condition to be met, cache line degeneration information that indicates a predetermined cache line where the error occurs is degenerated in the cache line degeneration information memory unit.
摘要:
A cache memory includes a first-level cache-memory unit that stores data; a second-level cache-memory unit that stores data that is same as the data stored in the first-level cache-memory unit; a storage unit that stores a part of information relating to the first-level cache-memory unit; and a coherence maintaining unit that maintains cache-coherence between the first-level cache-memory unit and the second-level cache-memory unit based on information stored in the storage unit.
摘要:
A circuit for driving and controlling a second cache that is incorporated in a processor and comprises a plurality of RAM. The circuit comprises a second-cache control unit 1A and a chip-enable control unit 61. The second-cache control unit 1A receives an access request for an access to the second cache and designates some of the RAMs, which need not operate, in accordance with the type or address of the access request, or both. The chip-enable control unit 61 outputs an intra-macro stop-instructing signal to the RAMs that have been designated by the second-cache control unit 1A.
摘要:
A cache controller controls at least one cache. The cache includes ways including a plurality of blocks that stores therein entry data. A writing unit writes degradation data to a failed block. The degradation data indicates that the failed block is in a degradation state. A reading unit reads entry data from a block. A determining unit determines, if the entry data obtained by the reading unit includes the degradation data, that the block is in the degradation state.
摘要:
A memory access control apparatus includes an MIB for storing information on a plurality of requests and processing the requests in parallel. Upon receipt of a memory access request, the MIB selects a request for a data block to be processed corresponding to the same set of a data block to be processed in response to the memory access request, and outputs a WAY assigned to the selected request to a replace-WAY selecting unit. The replace-WAY selecting unit excludes the WAY output from the MIB, and selects a WAY to be assigned to the memory access request based on a predetermined algorithm.
摘要:
A cache-memory control apparatus controls a level-1 (L1) cache and a level-2 (L2) cache having a cache line divided into a plurality of sub-lines for storing data from the L1 cache. The cache-memory control apparatus includes a control-flag adding unit, an L1 cache control unit, and an L2 cache control unit. The control-flag adding unit provides an SP flag to each of the sub-lines. The L1-cache control unit acquires an access virtual address, and, when there is no data at the access virtual address, outputs an L2 cache-access address to the L2-cache control unit. The L2-cache control unit switches the SP flag based on a virtual page number in an L1 index and a physical page number in an L2 index. Based on the SP flag, corresponding one of the sub-lines is written back to the L1 cache.
摘要:
By assigning presentation process information, which is used for changing a game screen or a game sound to a game screen or a game sound that is different from an ordinary game screen or game sound, to a player through an external storage medium when a predetermined condition is satisfied, a network game system and a client game device capable of increasing the attraction and strengthening the friendship between players are provided. In a network game system including game devices each including a unit that reads out a player ID from an external storage medium and a server terminal that is communicably connected to the game devices through a network, presentation process information used for performing a game presentation associated with a game presentation ID at the time of performing a game is stored in a managing section, the game presentation ID set to be used in the external storage medium based on the player ID is stored in the managing section in association with the player ID, and, when a predetermined condition is satisfied, information on the use permission setting of the game presentation ID that is stored in the managing section is updated.
摘要:
A network game system and a client game device increase the attraction and strengthening of friendships between players. The network game system includes game devices, each of which includes a unit that reads out a player ID from an external storage medium, and a server terminal that is communicably connected to the game devices through a network. Presentation process information is used for performing a game presentation associated with a game presentation ID at the time of performing a game and is stored in a managing section. The game presentation ID is set to be used in the external storage medium based on the player ID and is stored in the managing section in association with the player ID. When a predetermined condition is satisfied, information on the use permission setting of the game presentation ID that is stored in the managing section is updated.
摘要:
A degeneration control device that controls degeneration of a cache having a plurality of ways based on an error that occurs in response to an access request, includes a cache line degeneration information memory unit, which stores cache line degeneration information that indicates whether a cache line constituting each of the plurality of ways is degenerated, and a degeneration control unit, which writes, when an error that occurs in response to the access request causes a predetermined condition to be met, cache line degeneration information that indicates a predetermined cache line where the error occurs is degenerated in the cache line degeneration information memory unit.
摘要:
A cache-memory control apparatus controls a level-1 (L1) cache and a level-2 (L2) cache having a cache line divided into a plurality of sub-lines for storing data from the L1 cache. The cache-memory control apparatus includes a control-flag adding unit, an L1 cache control unit, and an L2 cache control unit. The control-flag adding unit provides an SP flag to each of the sub-lines. The L1-cache control unit acquires an access virtual address, and, when there is no data at the access virtual address, outputs an L2 cache-access address to the L2-cache control unit. The L2-cache control unit switches the SP flag based on a virtual page number in an L1 index and a physical page number in an L2 index. Based on the SP flag, corresponding one of the sub-lines is written back to the L1 cache.