Question $49$

$2$ pts

Consider a direct$-$mapped cache for a MIPS processor with the following characteristics:

The total cache size $($without counting the valid bits$)$ is $256MB(2^{28}$ bytes$)$:

The cache block size is eight words $(4$ bytes$/$word$)$;

The address is $32$ bits;

Questions:

How many blocks can the cache hold?

What is the size of the tag field?

When accessing the memory address with a hex format of OxFFFF$82$A$0,$

$($a$).$ Which cache block will this address be mapped to $?$

$($in hex format$)$

$($b$).$ What is the value of the tag field? $($in hex format$)$