CSC231 Homework 3 Fall 2017

--D. Thiebaut (talk) 17:26, 1 October 2017 (EDT)

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This assignment is due on Monday 10/9/17 at 11:55 p.m. You can work on this assignment in pairs, in which case you must include both your names in the header of the assembly language program you submit. Both members of a pair must submit a program and answer the quiz.

Problem 1

Assignment

• Using the 231Lib.asm library, write an assembly language program that prompts the user for an integer (positive) number of seconds, which it then translates in a number of days, hours, minutes and seconds.
• Call your program hw3.asm.
• The format of your output should be similar to the format illustrated in the examples shown below.

cs231a@aurora ~/ $ ./hw3sol 
> 1
0 days 0 hours 0 minutes 1 seconds 
cs231a@aurora ~/ $ ./hw3sol 
> 0
0 days 0 hours 0 minutes 0 seconds 
cs231a@aurora ~/ $ ./hw3sol  
> 3601
0 days 1 hours 0 minutes 1 seconds 
cs231a@aurora ~/ $ ./hw3sol 
> 8641
0 days 2 hours 24 minutes 1 seconds 
cs231a@aurora ~/ $ ./hw3sol  
> 86401
1 days 0 hours 0 minutes 1 seconds 
cs231a@aurora ~/ $ 864001
864001: command not found
cs231a@aurora ~/ $ ./hw3sol  
> 864001
10 days 0 hours 0 minutes 1 seconds 
cs231a@aurora ~/ $ 

Additional Information

• Use the DIV instruction
• Do not worry about whether words should be singular or plural. We do not know how to test quantities yet. Make your program output all the words in their plural form.
• Make your program output all the quantities on one line.
• You can use WolfranAlpha to convert seconds to day/hours/minutes/seconds, to test your program. WolframAlpha will correctly understand what to do if you enter something like "864001 seconds" in the search bar.

Submission

• Document your program well, and submit it on Moodle, in the Homework 3, Problem 1 section. Be careful as Moodle gives only 5-minute increments for the closing time, which means you have until 11:55 p.m. on Monday to submit the program.

Problem 2

• Answer the quiz on Moodle, in the Homework 3 Problem 2 section.