2. (15 points] Suppose a computer using fully associative cache has 220 bytes of byte- addressable main memory and a cache 128 bytes. of 256 blocks, where each cache block contains a. How many blocks of main memory are there? b. What is the format of a memory address as seen by the cache, i.e., what are the sizes of the tag and offset fields? c. To which cache block will the memory address 01E87416 map