Write a program in ARM assembly machine language (using raspberry pi) that reads in a string from the user using a READ syscall

Process this string by writing a subroutine that turns the possible newline character (from the enter key) into a null character

Then run the input string through a version of strlwr() that you will create

Finally print out the string using a WRITE syscall with the help of the array counting code to ensure that you print the correct number of characters.

Your code will include at a minimum the following subroutines:

1. A subroutine to replace the terminating newline character from the keyboard buffer with a null character
2. A subroutine to make our string lower case
3. A subroutine that counts the number of values in an array of bytes. Your code must be assembled and linked using the dynamic linker and not GCC.