Assigned 17 September, 2001
Due 24 September, 2001

The goal of this assignment is to get familiar with the SPIM Simulator, by actually running a program written in the MIPS Assembly Language. Don’t worry if you’ve never seen an assembly program. An example program will be provided to you, and you will be asked to make a simple modification to it.

Install the SPIM Simulator on your personal machine or find a machine that already has it installed. (The ATN machines and the PCs in the PC Lab of Sitterson Hall (room 030) have it in the PCSpim program group.)

The instructions on installing the SPIM simulator can be found on the class discussion forum.

Now, save this program in a file and load it to the simulator. Run it! Do you see the output?

Use any text editor to modify the fourth line of the program, by changing the string 1234 to the last four digits of your student ID number. (Make sure they are inside the double-quote marks.) Run the modified program. Do you see a different output? Write down the output which will be part of your submitted answer.

If you’re interested in what the program is actually doing, you’re encouraged to browse Appendix A of the textbook.

Your answer will consist of two lines. In the first line, write your COMPLETE student ID number without the dash. (This will help me recording your grades in the future too!) In the second line, write down the output you saw AFTER YOU MODIFY the example program. Here is an example:

707054321
825373492

Submit your answer via EMAIL to fytsai@email.unc.edu by the beginning of class on the due date.

Please also put HW3 in the subject line of your mail.

September 18, 2001 12:10