3. (15 points) Assume that the machine has a 128KB cache with a 32-bit address. Please be aware of block sizes. 3.1. (7 points) Show the address decomposition of a direct-mapped cache (assume 16 bytes per block). Show your work. Tag Index Offset 3.2. (8 points) Show the address decomposition of a 4-way associative cache (assume 32 bytes per block). Show your work. Tag Index Offset