1. Dr. Clincy Professor of CS
CS Chapter 4
Dr. Clincy
Professor of CS
TODAY: Demo MARIE (recorded for (1) students in class to refer back to and (2) for students not in attendance)
Final Exam – Dec 11th – I will be in Europe (UK) – they will proctor and scan answer sheets to me
Multiple Choice Test (smile)
Irma Lecture Fragment Online (Lecture F20)
Next Week’s Lab will use MARIE
Dr. Clincy
Lecture
Slide 1 1

2. Installing and Using MARIE
Download the zip file and extract
Provided: Quick Guide, Full and Complete Guide, Marie Simulator, Marie DataPath Simulator, and four examples
With Java Virtual Machine (JVM) Version 5 or higher installed on your machine, No installation is required…. Simply run the simulators by clicking on them
Let’s see an example using the assembly code we covered in class
Let’s recap the code first
Dr. Clincy
Lecture

3. A Simple Program
A program that adds two numbers together, storing the sum in memory
Program
Data
Result
Assembly Language
Machine Language
Dr. Clincy
Lecture

4. Catering for MARIE Load X Add Y Store 106 Halt X, Hex 0023 Y, Hex FFE9
Instead of forcing the memory location for the variables, we could use labels in the following manner:
Load X
Add Y
Store 106
Halt
X, Hex 0023
Y, Hex FFE9
Let’s now play with Marie
Dr. Clincy
Lecture

5. Now Watch the Demo Recording
Dr. Clincy
Lecture