Assume function arguments are provided in x10 and x11 respectively.1. write three versions of the function where it is given an integer x and returns 4x, namely quadra_a, quadra_b, and quadra_c by using different risc-v instructions.2. write a function hex_abs in risc-v that, when given an integer x, returns |6x|. (use label hex_abs: to denote the start of your function)3. write a function power in risc-v that has two integer arguments x and n, and which returns x .assume that n ≥ 0 and that multiplication will always result in a 32-bit number since risc-v is a 32- bit emulator and we do not consider overflow here.