Consider a cache (M1) and memory (M2) hierarchy with the following characteristics:
M1: 16K words, 50ns access time
M2: 1 M words, 400 ns access time
Assume 8 words cache blocks and a set size of 256 words with set associative mapping. In the mapping between M2 and M1, what is the length of TAG field in bits?Enter numerical value using the virtual keypad. Round off where necessary.