Problem 5: Caches (20 points) 1. Consider a machine with a direct mapped cache that has 8-sets and has a block size of 4-bytes Memory addresses are 13-bits and each memory access from a processor requests a byte from the cache. The contents of the cache are as follows, with all numbers in hexadecimal Cache Line Set Index Tag Valid Byte 0ByteByte 2 Byte 3 30 78 F4 3F 72 92 09 1 38 1 6E 0 060 C71 71 91 46 0 0 AB D4 C5 12 59 1F DA 40 D3 9A OB 5C 80 B3 (a) (2 points) Calculate the size of the cache in bytes (b) (3 points) Indicate the number of bits used to determine o the block offset: o set index: o tag