MIPS programming question

Problem 1: Write a program that asks the user to input a string (or no more than 50 characters). Your program should then output the length of the string. The string length should be determined using a separate function strlen that will accept the address of the string and return its length. For the purposes of this exercise, the length of a string will be defined as the number of non-null and non-newline characters until either the null character (ASCII 0) or the newline character (ASCII 10) is encountered.