Write an assembly program that takes marks of a student from user and assigns him letter grade according to following scheme

If Marks >= 90, Grade = A

If Marks >= 80, Grade = B

If Marks >= 70, Grade = C

If Marks >= 60, Grade =D

If Marks < 60, Grade = F

If marks entered are out of range [0,100] program will print an error message. Print letter grade on Screen