Write a LEGv8 assembly code to compute the sum, mean, median, and range of EIGHT 64-bit sorted values. The eight values are sorted in ascending order and are stored in the memory as an array. The base address of the array is stored in X19. Find the sum, mean, median, and range and store the values in X20, X21, X22, and X23 respectively. Assume all values are 64-bits. Do not use divide and branch instructions in your code. Comment your assembly code.