[理工] [計組]98交大第4題
Consider a virtual memory system with the following properties:
12-bit virtual byte address
256-byte pages
65536 bytes of physical memory
The system uses a single level page table. The contents of the page table are
partially shown below (where VPN: Virtual page number and PPN: Physical page
number).
(i)(3%) What is the total size of the page table for each process on this
machine,assuming that the valid, protection, dirty, and use bits take a total of 4
bits and that all the virtual pages are in use?
解答是 2^4 * (8+4)/32 * 4
請想問(8+4)/32 * 4 這個數字是怎麼來的
爬文以後的解釋看不懂。麻煩板上的高手了
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