页式虚拟存储系统的逻辑地址是由页号和页内地址两部分组成，地址变换过程如图2—8所示。假定页面的大小为8KB，图中所示的十进制逻辑地址9612经过地址变换后，形成的物理地址a应为十进制( )。
- A.42380
- B.25996
- C.9612
- D.8192
正确答案及解析
正确答案
解析
本题考查页式存储管理中的地址变换知识。在页式存储管理中，有效地址除页的大小，取整为页号，取余为页内地址。本题页面的大小为8KB，有效地址9612除8192，取整为1，取余为1420。我们先查页表得物理块号3，因此有效地址a为8192×3+1420=25996。
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