please help with this problem I will rate asap!!!

2.) Convert the following code to ARM instructions. Assume a is in X0, b in X1, n in X2, and the result should go into X10. You may change the values in any of these registers. Implement the subroutine call by simply branching to the top of your code, but with the arguments updated appropriately. To end your program, call "BR X30" to return to the subroutine caller. Shorter and faster programs will be given more credit. int fib_iter (int a, int b, int n) f if (n== 0) return b; else return fib_iter (a+b, a, n-1)/