发明名称 |
Logical cache memory storing logical and physical address information for resolving synonym problems |
摘要 |
Physical page information PA(a) corresponding to logical page information VA(a) as a cache tag address is retained in a logical cache memory 10 and in the event of a cache miss when a shared area is accessed, the physical page information PA (a) retained in the cache memory is compared with physical page information PA (b) resulting from the translation of a search address by TLB. When the result of the comparison is proved to be conformity, the cache entry is processes as a cache hit, so that the problem of a synonym arising from a case where the same physical address is assigned to different logical addresses is solved in such a manner that the number of times access is provided to TLB is halved as compared with the conventional arrangement.
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申请公布号 |
US5930833(A) |
申请公布日期 |
1999.07.27 |
申请号 |
US19970924551 |
申请日期 |
1997.08.21 |
申请人 |
HITACHI, LTD. |
发明人 |
YOSHIOKA, SHINICHI;KAWASAKI, SHUMPEI |
分类号 |
G06F12/08;G06F12/02;G06F12/10;(IPC1-7):G06F12/10 |
主分类号 |
G06F12/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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