QUESTION $3$

A $8$MiB direct$-$mapped cache uses a $128-$bit address and $128$ bytes per block.

Answer the following questions, along with a brief explanation.

a$.$ How many bits are used for the byte offset?

$[3$ marks$]$

b$.$ How many blocks are there in this cache?

$[3$ marks$]$

c$.$ How many bits are used for the index field?

$[3$ marks$]$

d$.$ How many bits are used for the tag field?

$[3$ marks$]$

e$.$ How many total bits are required to implement this cache?

$[3$ marks$]$

f$.$ Draw a block diagram of this cache and explain its operation, specifically

focusing on a cache hit and cache miss?