Question

Ihave a cache which is 8 mb in size each cache a line is 64 kb assume my pointers are 4 bytes how many bits are used to identify the cache a line​

Answer 1

Answer:

Concept:

The number of bits that are used to determine the byte within a cache line an address point is given by:

$N = log_{2}M$

Where M is the size of the cache lines

Calculation:

$log_{2}64=6$

Hence the last 6 bits determine the address bytes

The lower set of bits determine the address that the byte referres to and the line that it contains, whereas the higher bits is used to determine if a hit has occured

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