Question $4[50]$

Design a program in assembly language to read a number entered by the user. The program should determine whether or not the number is divisible by $3$ and display an appropriate message based on the results on the screen. The program should do the following:

Clear the screen and change the screen colour to white on blue.

Change the cursor position to row $10,$ column $0.$ Prompt the user to key in the number $(1-9).$ Read the number from the keyboard.

Convert the number to a numeric value and store in memory. Test whether the number is in the range $09.$ Display $**$ next to the number if the number is out of range and read again.

Divide the number by $3.$ If the remainder is equal to zero, we know that the number is divisible by $3,$ otherwise it is not.

If the number is divisible by $3,$ display the following message: $$Number is a multiple of $3$ otherwise display the message $$Number is not a multiple of $3.$

Terminate the program.

The following is an example of what the program should do$.$ The user input is displayed in italics, i$.$e$.9$ below.

Please enter the number you select: $8$

The number is not a multiple of $3$

NB: Submit three screen shots of different test runs performed.

Marks will be allocated as follows:

Clearing the screen and changing the screen colour $(3)$

Changing the cursor position $(2)$

Displaying the user prompt $(2)$

Reading the number $($ASCII character$)(2)$

Converting the number to a numeric value $(2)$

Testing the range and displaying an error message if the number is invalid $(4)$

Calculation $(4)$

A program listing submitted $(6)$

Three screen shots of test cases submitted $(3\backslash$times $5)(15)$

The program structure $(5)$

The program documentation $($comments$)(5)$