Using Nasm,Assembly language programming,(.ASM)

Exercise 4: Characters manipulation 2 (45 points) Your program asks user to enter a character (using getchar), If the character is from the English alphabet then If the character is lowercase, your program displays the character in UPPERCASE If instead the character entered is UPPERCASE your program displays it in lowercase. Otherwise If user enters "O" the program terminates else the program displays a message asking user to enter a character from a to z