Program #3 data validation

Program #3

Objectives
1. Implementing data validation
2. Implementing an accumulator
3. Integer arithmetic
4. Defining variables (integer and string)
5. Using library procedures for I/O
6. Implementing control structures (decision, loop)
Problem Definition
Write a MASM program to perform the following tasks:
Display the program title and programmer’s name.
Get the user's name, and greet the user.
Display instructions for the user
Repeatedly prompt the user to enter the 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 non-negative number is discarded)
Calculate the (rounded integer) average of the negative numbers
Display:
the number of negative numbers entered (Note: if no negative numbers were entered, display a special message and display the
goodbye message with the user's name at the end)
the sum of negative numbers entered
the average, rounded to the nearest integer (e.g., -20.5 rounds to -21)
a goodbye message that includes the user’s name, and terminate the program.
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Requirements
1. The programmer’s name and the user’s name must appear in the output.
2. The main procedure must be modularized into commented logical sections (procedures are not required this time).
3. Recursive solutions are not acceptable for this assignment. This one is about iteration.
4. 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.
5. The lower limit must be defined and used as a constant.
6. The usual requirements regarding documentation, readability, user-friendliness, etc., apply.
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 and error detection/correction.
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 Program Operation
Welcome to the Integer Accumulator by Austin Miller
What’s your name? Roger
Hello, Roger
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: -200
Invalid number, please enter numbers in [-100, -1].
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!
Goodbye, Roger.
Extra Credit Option (original definition must be fulfilled)
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Program 3 Rubric
(1 pt) Calculate and display the average as a floating-point number, rounded to the nearest .001.
Remember, in order to ensure you receive credit for any extra credit work, you must add one print statement to your program output PER
EXTRA CREDIT which describes the extra credit you chose to work on. You will not receive extra credit points unless you do this. The
statement must be formatted as follows...
--Program Intro--
**EC: DESCRIPTION
--Program prompts, etc--
Please refer back to the documentation for Program 1 to see a sample of the extra credit format.
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Criteria Ratings Pts
1 pts
2 pts
1 pts
2 pts
4 pts
Files Correctly Submitted
Submitted file is correct assignment and is an individual .asm file.
1 pts
Full Marks
0 pts
No Marks
Program Assembles & Links
Submitted program assembles and links without need for clarifying work for
TA and/or messages to the student.
This assumes the program is actually an attempt at the assignment. Nonattempts which compile/link earn no points.
2 pts
Full Marks
0 pts
No Marks
Documentation - Identification Block - Header
Name, Date, Program number, etc as per syllabus are included in
Identification Block
1 pts
Full Marks
0 pts
No Marks
Documentation - Identification Block - Program Description
Description of functionality and purpose of program is included in
identification block.
2 pts
Full Marks
0 pts
No Marks
Documentation - Section Comments
Code section headers describe functionality and implementation of
program flow. Should mirror the style guide image.
4 pts
Full Marks
0 pts
No Marks
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Criteria Ratings Pts
1 pts
5 pts
1 pts
2 pts
1 pts
2 pts
Documentation - In-line Comments
In-line comments contribute to understanding of program flow (from section
comments) but are not line-by-line descriptions of moving memory to
registers.
1 pts
Full Marks
0 pts
No Marks
Verification - Program Executes
Program executes and makes some attempt at the assigned functionality.
5 pts
Full Marks
0 pts
No Marks
Completeness - Displays Programmer Name
Program prints out the programmer's name.
1 pts
Full Marks
0 pts
No Marks
Completeness - Gets / Uses User's name
Receives input with ReadString. Saves input in a null-terminated BYTE
array. Greets user (e.g. "Hello, Username")
2 pts
Full Marks
0 pts
No Marks
Completeness - Displays Introduction
Displays program introduction. Program introduction should describe
functionality of program.
1 pts
Full Marks
0 pts
No Marks
Completeness - Prompt for Input
Prompts user to enter data, specifying bounds of acceptable inputs.
2 pts
Full Marks
0 pts
No Marks
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Criteria Ratings Pts
1 pts
4 pts
4 pts
1 pts
2 pts
Completeness - Gets data from user
Utilizes ReadInt to receive user input. Saves values in appropriately-named
identifiers for validation.
1 pts
Full Marks
0 pts
No Marks
Completeness - Validates User Data
Validates that user-entered values are within the advertised limits.
4 pts
Full
Marks
2 pts
Partial validation
Validates only one end or neglects to check
edge cases.
0 pts
No
Marks
No
validation
Completeness - Displays Results (number of valid numbers, sum, and
rounded average)
display a special message if no negative numbers were entered (-2 if
missed)
4 pts
Full Marks
2 pts
Partial Display
0 pts
No Marks
Completeness - Displays Closing Message 1 pts
Full Marks
0 pts
No Marks
Correctness - Number of Valid Numbers
Correct number of valid numbers is displayed.
2 pts
Full
Marks
1 pts
Incorrect for small numbers
Correct number of valid numbers for values
greater than 2, but fails for one or more of the
following values (0, 1, 2)
0 pts
No
Marks
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Criteria Ratings Pts
3 pts
3 pts
1 pts
1 pts
4 pts
2 pts
Correctness - Calculation of rounded average is correct 3 pts
Full Marks
2 pts
Calculates average but not rounded
0 pts
No Marks
Correctness - Calculation of Sum is correct 3 pts
Full Marks
0 pts
No Marks
Requirements - Solution is non-recursive 1 pts
Full Marks
0 pts
No Marks
Lower limit is defined and used as a constant 1 pts
Full Marks
0 pts
No Marks
Requirements - Well-Modularized
Program is divided into logical sections, separated by Section Comment
blocks.
4 pts
Full Marks
0 pts
No Marks
Coding Style - Appropriately named identifiers
Identifiers named so that a person reading the code can intuit the purpose
of a variable, constant, or label just by reading its name.
2 pts
Full
Marks
1 pts
Partial
Some identifiers are named well, with others
having no relevance to their functionality.
0 pts
No
Marks
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Total Points: 50
Criteria Ratings Pts
2 pts
0 pts
0 pts
Coding Style - Readabilty
Program uses readable white-space, indentation, and spacing as per the
Indentation Style Guide. Logical sections are separated by white space.
2 pts
Full
Marks
1 pts
Marginally Readable
Program is marginally readable but lacks proper
alignment and white space.
0 pts
No
Marks
(1pt) Extra Credit for rounded average
Rounded average is rounded to the nearest .001.
0 pts
Full Marks
0 pts
No Marks
Late Penalty
Remove points here for late assignments. (Enter negative point value, 15%
of 'earned' points per day late)
0 pts
Full Marks
0 pts
No Marks
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