[Solved] CS271- Assignment 3

Write and test a MASM program to perform the following tasks:

1. Display the program title and programmers name.
2. Get the users name, and greet the user.
3. Display instructions for the user.
4. Repeatedly prompt the user to enter a number. Validate the user input to be in [-100, -1] (inclusive). Count and accumulate the valid user numbers until a non-negative number is entered. (The nonnegative number is discarded.)
5. Calculate the (rounded integer) average of the negative numbers.
6. Display:
   1. the number of negative numbers entered (Note: if no negative numbers were entered, display a special message and skip to )
   2. the sum of negative numbers entered

• the average, rounded to the nearest integer (e.g. -20.5 rounds to -20)

1. a parting message (with the users name)

Requirements:

1. The main procedure must be modularized into commented logical sections (procedures are not required this time)
2. The program must be fully documented. This includes a complete header block for identification, description, etc., and a comment outline to explain each section of code.
3. The lower limit should be defined as a constant.
4. The usual requirements regarding documentation, readability, user-friendliness, etc., apply.
5. Submit your text code file (.asm) to Canvas by the due date.

Notes:

1. There are no new concepts in this programming assignment. It is given for extra practice, to keep MASM fresh in your mind while we study internal/external data representation.
2. This is an integer program. Even though it would make more sense to use floating-point computations, you are required to do this one with integers.

Example (see next page)

page 1 of 2

Example (user input in italics):

Welcome to the Integer Accumulator by Austin Miller

What is your name? Caleb

Hello, Caleb

Please enter numbers in [-100, -1].

Enter a non-negative number when you are finished to see results.

Enter number: 15

Enter number: 100 Enter number: 36

Enter number: -10

Enter number: 0

You entered 4 valid numbers.

The sum of your valid numbers is -161

The rounded average is -40

Thank you for playing Integer Accumulator! Its been a pleasure to meet you, Caleb.

Extra-credit options (original definition must be fulfilled):

1. Number the lines during user input.
2. Calculate and display the average as a floating-point number, rounded to the nearest .001.
3. Do something astoundingly creative.