Suppose a computer using fully associative cache has 2^32 bytes of byte-addressable main memory, and a cache of 64 blocks, where each cache block contains 64 bytes. 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 reference 0xF8C9 map?