S A M P L E

CPS 1 (Ramm)			Spring 1998		      11 March 1998
	      			  Quiz #8

Name ___________________   Honor Code________________________    Section _____

A. Do a trace for the program shown below left using the column headings
shown below right.  Assume that the user enters  13, then  9, when input
is requested.   Show at least the statement # for each statement actually
executed.
loc	instruction	    #	ax	s	r	sum 	dif	Output

1	in	ax

2	copy	r, ax

3 	in	ax

4	copy	s, ax

5	add	ax, r

6	copy	sum, ax

7	copy	ax, r

8	sub	ax, s

9	copy	dif, ax 

10 	out	ax

11	halt

20 sum		0
21 r		0	
22 s		0
23 dif		0

B. Some true/false or short answer question(s) regarding sofware
engineering.

If you've read the chapter, you should be OK.