in ARM assembly for Raspberry Pi. Please provide explanation and output

Write a recursive function that returns the sum of the elements of an int Also, and a program to output your function using the following interger array int list[10] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}.Use this set up

.text .global main

main:

#Save return to Os on stack

SUB sp,sp #4

STR lr, [sp,#0]

#Enter program here

#return to the OS

LDR lr, [sp,#0]

ADD sp,sp, #4

MOV pc, lr

.data