CSc 310 Project 0:
		    Project Score Computation

		    (not collected; solution to be posted)

You are given a C++ program that computes the scores and
statistics for a class of students. The program reads in 
the number of projects for each student, and the project 
scores for each student. If the first project score for a 
student is less than zero, there are no more students,
and the program stops reading in scores. It computes the average 
score for each student, and counts the number of students that 
obtained each letter grade (90-100 A, 80-89 B, 70-79 C, < 70 F).
It also adds up all the scores for the entire class,
and computes the average score for the class. You may assume 
that the project score will always be in the range 0 to 100
(except when there are no more students to be entered). At 
the end, the program prints the number of students who obtained 
each letter grade, and the approximate average score for 
the class. A sample run for 3 students with 4 projects each
can be found in ~whsu/310/PROJECTS/p0.ex.

You may assume that all variables are integers, and you are 
using integer division only. The C++ program can be
found on libra in ~whsu/310/PROJECTS/p0.cc.

Translate this C++ program to MAL. Don't panic: part of the 
program is already translated for you and can be found 
in ~whsu/310/PROJECTS/p0.s. The location of most variables have 
been chosen for you; the more frequently used ones are in registers,
and the less frequently used ones are in memory. All you have to 
do is copy p0.s into your directory and fill in the missing parts.

Your program uses nested loops. A good idea is to use flow charts
to design your code first, and then write the assembly language 
program. You may also start by writing the inner loop,
making sure that works, and then writing the outer while loop.

Make sure your program produces the same prompts and output 
results as the C++ program.


Submission:

Do not submit your solution. This project is to help you prepare 
for Quiz 2 and will not be graded. A solution is available 
in ~whsu/310/PROJECTS/p0.soln.

Note that p0.soln is also documented according to the guidelines
given in Chapter 2 of your lecture notes. You will have to
document your MAL programs for the next project, so it's good
practice to start doing that for Project 0.

(Obviously, you should write p0.s yourself and get it to run,
before looking at p0.soln! Keep in mind that you'll have to
translate C++ code to MAL for Quiz 2, and this is your 
practice problem for it.)