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Question :

Consider a system with 20 bit physical address and direct mapped cache with 64 blocks and block size of 16 bytes To what block number does byte address 1200 mapped??
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It will be mapped to block number 75 .

 

Division of PA : Tag = 10 bits , index =  6 bits , offset = 4 bits .

so from 1200 take the 6 bits from PA i.e bits from index and find the block number . .

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