Suppose that a computer using a direct mapping cache has a main memory size of 1M x 16 and a cache memory consisting of 256 lines where each cache line contains a block of 8 words along with a corresponding tag. a) Give the sizes of the tag, line and the word (offset) fields(in bits) Tag=Line=Word=b) To which cache line will the memory reference x3E6A5 map? What would be the corresponding tag value?2. Suppose that a computer using a fully associative cache has a main memory size of 1M x 16 and a cache memory consisting of 256 lines where each cache line contains a block of 8 words along with a corresponding tag. a) Give the sizes of the tag and the word fieldsTag=Word=b) To which cache line will the memory reference x3E6A5 map? Whatwould be the corresponding tag value?