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一般来说,Cache的功能(40)。某32位计算机的Cache容量为16kB,Cache块的大小为 16B,若主存与Cache的地址映射采用直接映射方式,则主存地址为1234E8F8(十六进制)的单元装入的Cache地址为(41)。在下列Cache替换算法中,平均命中率最高的是(42)。

  • A.全部由软件实现
  • B.全部由硬件实现
  • C.由硬件和软件相结合实现
  • D.有的计算机由硬件实现,有的计算机由软件实现
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