Problem 1 A. For each of the following 16-bit memory address references, identify the binary address, the tag, and the index given a 64B direct-mapped cache with 4B blocks. Also list whether each reference is a hit or a miss, assuming the cache is initially empty. 0x03, Oxb4, 0x2b, 0x02, Oxbf, 0x58, Oxbe, 0x0e, Oxb5, 0x2c, Oxba, Oxfd B. Repeat A for a 64B direct-mapped cache with 8B blocks