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$\begingroup$ what do you mean by "memory address not related to any location in cache"? The book describes direct mapped cache in the previous sections and in that case we write to the cache by using certain bits of address for indexing and the remaining as a tag. Data can always be written to the location := (block address) mod (number of cache blocks). $\endgroup$

Jamāl
– Jamāl

2020-12-15 03:31:19 +00:00
Commented Dec 15, 2020 at 3:31

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