Consider a system with 4-way set associative cache of 256 KB. The cache line size is 8 words (32 bits per word). The smallest addressable unit is a byte, and memory addresses are 64 bits long. (a) How many bits are used for TAG and INDEX fields of cache mapping?

Consider a system with 4-way set associative cache of 256 KB. The cache line size is 8 words (32 bits per word). The smallest addressable unit is a byte, and memory addresses are 64 bits long. (a) How many bits are used for TAG and INDEX fields of cache mapping?

Systems Architecture

7th Edition

ISBN:9781305080195

Author:Stephen D. Burd

Publisher:Stephen D. Burd

Chapter6: System Integration And Performance

Section: Chapter Questions

Problem 12RQ

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Q. Consider a system with 4-way set associative cache of 256 KB. The cache line size is 8 words (32 bits per word). The smallest addressable unit is a byte, and memory addresses are 64 bits long.

(a) How many bits are used for TAG and INDEX fields of cache mapping?

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