Program #4 implementing procedure

Program #4

Objectives
1. Designing and implementing procedures
2. Designing and implementing loops
3. Writing nested loops
4. Understanding data validation
Problem Definition
Write a program to calculate composite numbers. First, the user is instructed to enter the number of composites to be displayed, and is
prompted to enter an integer in the range [1 .. 300]. The user enters a number, n, and the program verifies that 1 ≤ n ≤ 300. If n is out of
range, the user is re-prompted until they enter a value in the specified range. The program then calculates and displays all of the
composite numbers up to and including the nth composite. The results should be displayed 10 composites per line with at least 3 spaces
between the numbers.
Requirements
1. The programmer’s name must appear in the output.
2. The counting loop (1 to n) must be implemented using the MASM loop instruction.
3. The main procedure must consist (mostly) of procedure calls. It should be a readable “list” of what the program will do.
4. Each procedure will implement a section of the program logic, i.e., each procedure will specify how the logic of its section is
implemented. The program must be modularized into at least the following procedures and sub-procedures:
introduction
getUserData
validate
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showComposites
isComposite
goodbye
5. The upper limit should be defined and used as a constant.
6. Data validation is required. If the user enters a number outside the range [1 .. 300] an error message should be displayed and the user
should be prompted to re-enter the number of composites.
7. Each procedure must have a procedure header that follows the format discussed during lecture.
8. The usual requirements regarding documentation, readability, user-friendliness, etc., apply.
Notes
1. For this program, you may use global variables instead of passing parameters. This is a one-time relaxation of the standards so that
you can get accustomed to using procedures. In future homework, global variables will not be allowed.
2. A number k is composite if it can be factored into a product of smaller integers. Every integer greater than one is either prime or
composite. Note that this implies that
1 is not composite.
The number must be positive.
3. If you choose to use the LOCAL directive while working on this program be sure to read section 8.2.9 in the Irvine textbook. LOCAL
variables will affect the contents of the system stack!
Example Program Operation
Welcome to the Composite Number Spreadsheet
Programmed by Author Name
This program is capable of generating a list of composite numbers.
Simply let me know how many you would like to see.
I’ll accept orders for up to 300 composites.
How many composites do you want to view? [1 .. 300]: 400
Out of range. Please try again.
How many composites do you want to view? [1 .. 300]: 0
Out of range. Please try again.
How many composites do you want to view? [1 .. 300]: 23
4 6 8 9 10 12 14 15 16 18
20 21 22 24 25 26 27 28 30 32
33 34 35
Thanks for using my program!
Extra Credit Option (original definition must be fulfilled)
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Program 4 Rubric
(2 pts) When the program runs, give the user the option to display only composite numbers that are also odd numbers. The user
should get a choice when the program first starts (e.g. enter 0 to view all composite numbers or enter 1 to view only odd composites).
For example, if the user chooses to view only odd composites, they would see the numbers 9, 15, 21, 25, 27, 33, 35, 39,
45...
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
1 pts
1 pts
1 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. Non-attempts which compile/link earn no points.
1 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.
1 pts
Full Marks
0 pts
No Marks
Documentation - Procedure Headers
Procedure headers describe functionality and implementation of program flow. Should
also list pre- and post-conditions and registers changed.
4 pts
Full
Marks
2 pts
Headers without Conditions
Descriptive headers but lacking
pre- and post-conditions and
'registers changed'
0 pts
No
Marks
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Criteria Ratings Pts
2 pts
3 pts
1 pts
1 pts
1 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.
2 pts
Full Marks
0 pts
No Marks
Verification - Program Executes
Program executes and makes some attempt at the assigned functionality.
3 pts
Full Marks
0 pts
No Marks
Completeness - Displays Title & Programmer Name
Program prints out the programmer's name and Program Title
1 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 - Prompts for Input (with Bounds)
Prompts user to enter data, specifying bounds of acceptable inputs.
1 pts
Full Marks
0 pts
No Marks
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Criteria Ratings Pts
1 pts
2 pts
2 pts
1 pts
4 pts
6 pts
Completeness - Gets data from User
Utilizes ReadInt or ReadDec 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.
2 pts
Full
Marks
1 pts
Partial validation
Neglects to check edge
cases.
0 pts
No
Marks
Completeness - Displays Results 2 pts
Full Marks
0 pts
No Marks
Completeness - Displays closing message 1 pts
Full Marks
0 pts
No Marks
Correctness - Displays correct number of composite numbers 4 pts
Full
Marks
3 pts
Mostly Correct
Edge cases are neglected or
display incorrectly.
0 pts
No
Marks
Correctness - Calculations are Correct
All displayed values are in fact composites, beginning with the number '4' (if running in
extra credit mode, the numbers should start with '9')
6 pts
Full Marks
0 pts
No Marks
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Criteria Ratings Pts
2 pts
1 pts
1 pts
10 pts
1 pts
Correctness - Numbers are displayed 10 per line 2 pts
Full Marks
0 pts
No Marks
Correctness - Partial lines displayed correctly 1 pts
Full Marks
0 pts
No Marks
Requirements - Limit is a CONSTANT
Max number allowable is defined and used as a CONSTANT.
1 pts
Full Marks
0 pts
No Marks
Requirements - Program is well-modularized
Program is divided into logical sections based on function. Program implements all
required procedures with good logical flow according to class lectures.
Note: as a reminder, the required procedures are introduction, getUserData, validate,
showComposites, isComposite, goodbye.
Adding extra procedure is allowed.
10 pts
Full
Marks
8 pts
Lacking some
Procedures
Well
modularized,
but lacking all
required
procedures
2 pts
No
procedures
Well
modularized,
but fails to
utilize
procedures
0 pts
No
Marks
Requirements - Counted loop uses LOOP instruction when displaying the correct number
of composite numbers
1 pts
Full Marks
0 pts
No Marks
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Total Points: 50
Criteria Ratings Pts
1 pts
1 pts
1 pts
0 pts
0 pts
Coding Style - Uses 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.
1 pts
Full Marks
0 pts
No Marks
Coding Style - Readability
Program uses readable white-space, indentation, and spacing as per the Indentation Style
Guide. Logical sections are separated by white space.
1 pts
Full Marks
0 pts
No Marks
Output Style - Readability
Program output is easy to read
1 pts
Full Marks
0 pts
No Marks
Extra Credit
Program has an extra mode that will only display composite numbers that are also odd
numbers (+2).
For example, if the user chooses to operate in extra credit mode and asks to view 3
composite numbers, they will see "9, 15, 21".
0 pts
Full Marks
0 pts
No Marks
Late Penalty
Remove points here for late assignments. (Enter negative point value)
0 pts
Full Marks
0 pts
No Marks
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