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I. Consider the following portion of a page table on a system with page size of 4096 bytes (212) In the table above, the physical
I. Consider the following portion of a page table on a system with page size of 4096 bytes (212) In the table above, the physical page refers to the physical frame in memory where the page is stored. The S bit indicates whether the page is supervisor page (kernel only) or not (user page). The W bit indicates whether the page is writeable (e.g., code pages or constant data pages are often marked as not writeable). A hex digit ( 0 -f) represents 4 binary digits, eg. (0x10f2 =0001000011110010). Explain what happens when the following memory references are executed from a program (i.e., in user mode). If possible, show the translation then explain what happens. (a) A store to address 0x000e0 ? (2 points) (b) A read from 0x01f0a (2 points) (c) A store to 0x0421f ( 2 points)
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