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※ 本文轉寄自 howar31.bbs@ptt.cc

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※ 引述《b76516 (阿聰)》之銘言：
: 請問 98交大計組第5題
: 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.
: 請問第一小題是問 用哪種方式mapping的cache嘛？
:     第二小題什麼是 aliasing problem？
:    第三跟第四小題考慮 physically addressed cache
:                    跟 virtually addressed cache 這兩種有什麼不同嘛？
: 謝謝

一、差不多，答案為Vitual。
二、aliasing 簡單來說就是可以經由兩個 virtual addr. 對應到一個相同的 physical
    addr.，答案同上。
三、這種是cache型態不同所造成的不同，
    共有三類：physical addressed、virtual addressed、
              virtual index physical tagged。



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