A direct-mapped cache is designed to store four words per cache line. It has 256 cache lines. Assuming a word is 4 bytes long, what is the length of the tag required for comparison to test for a cache hit or a miss? O 6
A direct-mapped cache is designed to store four words per cache line. It has 256 cache lines. Assuming a word is 4 bytes long, what is the length of the tag required for comparison to test for a cache hit or a miss? O 6
Chapter6: System Integration And Performance
Section: Chapter Questions
Problem 22VE
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Question
![A direct-mapped cache is designed to store four words per cache line. It has 256
cache lines. Assuming a word is 4 bytes long, what is the length of the tag required
for comparison to test for a cache hit or a miss?
O 6
O 20
O 4
O 22](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F4b025172-f9df-4306-8698-1482023fdfeb%2F83336179-e70c-4d4b-9d0d-488a6307237b%2F99rhhkt_processed.png&w=3840&q=75)
Transcribed Image Text:A direct-mapped cache is designed to store four words per cache line. It has 256
cache lines. Assuming a word is 4 bytes long, what is the length of the tag required
for comparison to test for a cache hit or a miss?
O 6
O 20
O 4
O 22
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