※ 引述《b76516 (阿聪)》之铭言： : 请问 98交大计组第5题 : 5. (08%) Virtually addressed cache is accessed with a virtual address, while : physically addressed cache is accessed with a physical address. : (i)(2%) Which kind of cache takes the TLB out of normal cache access path, : reducing cache latency? : (ii)(2%) Which kind of cache has aliasing problem? : (iii)(2%) Assume physically addressed cache is used, is it possible to have : TLB miss, but page table and cache hit for a data access? : (iv)(2%) Assume virtually addressed cache is used, is it possible to have TLB : miss, but page table and cache hit for a data access? Please explain your : answer. : 请问第一小题是问 用哪种方式mapping的cache嘛？ : 第二小题什麽是 aliasing problem？ : 第三跟第四小题考虑 physically addressed cache : 跟 virtually addressed cache 这两种有什麽不同嘛？ : 谢谢 一、差不多，答案为Vitual。 二、aliasing 简单来说就是可以经由两个 virtual addr. 对应到一个相同的 physical addr.，答案同上。 三、这种是cache型态不同所造成的不同， 共有三类：physical addressed、virtual addressed、 virtual index physical tagged。 --

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