Q. 43 An 8 KB direct-mapped write-back cache is organized as multiple blocks, each
of size 32-bytes. The processor generates 32-bit addresses. The cache controller
maintains the tag information for each cache block comprising of the following.
1 Valid bit
1 Modified bit
As many bits as the minimum needed to identify the memory block mapped in
the cache.
What is the total size of memory neeeded at the cache controller to store metadata
(tags) for the cache?
(A) 4864 bits
(B) 6144 bits
(C) 6656 bits
(D) 5376 bits
Answer: (D)
Explanation:
