Write a program in ARM assembly language (which can be executed on ARMSim simulator) to calculate sum and mean of a series of integer numbers. Series of integer numbers are stored in a file named input.txt. Input file contains 0 or more integer numbers (see the sample file on Moodle). Your program should open the file for reading, read each of the numbers, calculate sum and mean. It should display the result using standard output. You may use the following subroutine to perform the division.

 ; R1 - dividend ; R2 - divisor ; R3 - quotient ; R4 - remainder ; if divisor is 0 then it will return 0 in R3 and R4 

divider:

 mov R3,#0 ; Initialize quotient to 0

 mov R4,#0 ; Initialize remainder to 0

 cmp R2,#0 ; Branch if divisor is 0  beq done

loop: cmp R1,R2 ; Compare divisor and dividend

 BLT endloop ; Branch if dividend is < divisor

 sub R1,R1,R2 ; Subtract divisor from dividend

 add R3,R3,#1 ; Increment quotient

 B loop ; Branch to top of the loop endloop: mov R4,R1 ; Move remainder to R4

done: mov pc,lr ; Return to the calling method

The above subroutine returns a quotient and remainder. You can ignore the remainder and

display the quotient as the mean of the given numbers.