This document provides instructions for an assignment in a class on the MARIE assembly language. Students must complete 4 programming problems in groups of at most 2 people by writing MARIE programs, assembling them, and testing them using a MARIE simulator. They are to submit a zip file of their assembly code for each question, which includes writing loops to multiply numbers with repeated addition, an if/else statement to multiply or subtract values of variables x and y, adding the first 10 numbers, and subtracting 2 numbers input from the keyboard.

1. IS 139
Assignment 2
Instructions
● Assignment should be done by a group of maximum 2 people
● For each of the following questions write the MARIE program, assemble it and test it
using the provided MARIE simulator.
● Submit a zip file containing the MARIE assembly file(s) for each question
Questions
1. Write a MARIE program using a loop that multiplies two positive numbers by using repeated
addition. For example, to multiply 3 x 5, the program would add 3 five times, or 3 + 3 + 3 + 3 + 3
2. Write a MARIE assembly program to accomplish the following task
if x == y then
x = x * 2;
else
y = y ­ x;
where x & y can be any value. e.g. x = 15 & y = 20
3. Write a MARIE assembly program that adds the first ten numbers from 1 to 10
i.e. 1 + 2 + 3 + 4 + 5 + 6 +7 + 8 + 9 + 10
4. Write a MARIE assembly program that subtracts two numbers given as input from the
keyboard and displays the result as output.