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Problem 4[10 pts]: Calculate the average access time (AMAT) for given C codes. Assume the following direct-mapped cache configuration. Also, cache is initially empty Cache size Cache block size Hit time Miss penalty 16KB 64 bytes 1 cycle 128 cycles (a) Calculate AMAT for this code. int array[8192);// Assume this array saves elements int i, num-0 for(i 0; 1 8192; i++) num += arravril; b) Calculate AMAT for this code. int array 8192);// Assume this array saves elements int i, j, num 0; fori 08192; i++) js (i*16)% 8192; num array[j