raquelwilliams5675 raquelwilliams5675
  • 18-12-2020
  • Computers and Technology
contestada

Using direct mapping, consider a 16-bit memory addresses, and a cache with 64 blocks, where each block is 8 bytes. What is the size of offset, block, and tag

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ajeigbeibraheem
ajeigbeibraheem ajeigbeibraheem
  • 20-12-2020

Answer:

Tag          Block             Offset

 7               6                   3

Explanation:

Using direct mapping hashing:

Memory address size = 16 bits

Number of cache blocks = 64

Size of each block = 8 bytes

Thus;

Offest field = size of each block = 2^{3} = 3 bits

Number of blocks = 64 = 2

Thus, the index field is = 2^{6} = 6 bits of block

Tag filed is of size = 16 - (3+6) = 7 bits of tag

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