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A virtual memory system consists of 4KB pages, a four-entry fully-associative TLB, and true LRU replacement. If pages need to be brought in from
A virtual memory system consists of 4KB pages, a four-entry fully-associative TLB, and true LRU replacement. If pages need to be brought in from disk, the page that is one larger than the largest occupied physical page number is assigned. Following is a stream of virtual byte addresses: 0x123D, 0x08B3, 0x365C, 0x871B, 0xBEE6, 0x3140, 0xC049 The TLB content is as follows: Valid Tag Physical Page Number 12 4 6 9 1 1 1 0 OxB 0x7 0x3 0x4 Time Since Last Access 4 1 3 7 The page table content is as follows (assume all other entries are invalid): Index Valid Physical Page Number 5 4 0 1 2 3 4 5 6 7 8 9 A B 1 0 0 1 1 1 0 1 0 0 1 1 7 6 9 11 9 4 2 5 3 12 For each of the above accesses, list whether the access is: a TLB hit or miss, a page table hit or a page fault. Also list the final state of the TLB.
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