{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

fa08-sl-sf

# fa08-sl-sf - ECE 2030 12:00pm 5 problems 5 pages Problem...

This preview shows pages 1–3. Sign up to view the full content.

ECE 2030 12:00pm Computer Engineering Fall 2008 5 problems, 5 pages Final Exam Solutions 10 December 2008 1 Problem 1 (4 parts, 32 points) Implementation Bonanza For each part implement the specified device. Label all inputs and outputs . Part A (8 points) Implement the expression below using N and P type switches. ( ) E D C B A OUT X + + = B C A D E E OUT X A B C D Part B (8 points) Implement the expression in mixed logic notation using NOR gates. ( ) D C B A OUT Y + + = A B C D OUT Y Part B (8 points) Implement a 1 to 4 DEMUX using only pass gates and inverters. In O 0 O 1 O 2 O 3 S 1 S 0 Part D (8 points) Implement a full adder using AND, OR, NAND, NOR, NOT, & XOR gates. A C in B C out C in A B A B C in Sum

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
ECE 2030 12:00pm Computer Engineering Fall 2008 5 problems, 5 pages Final Exam Solutions 10 December 2008 2 Problem 2 (2 parts, 34 points) Even Average In this problem, you will write a subroutine that determines the average of even numbers in a variable length array in memory. Comments for each instruction and labels are already provided . Input parameters to this subroutine include a pointer to the first array element (\$1) and the number of elements in the array (\$2). The result (the average of even numbers) is returned in \$3. As always, the return address for this subroutine arrives in \$31. input parameters result working registers reg content reg content reg content reg content reg content reg content \$1 array pointer \$2 # array elements \$3 input / result \$4 running sum \$5 # even values \$6 predicate Part A (24 points) Write a subroutine that computes the average of even values in an array.
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

### What students are saying

• As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

Kiran Temple University Fox School of Business ‘17, Course Hero Intern

• I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

Dana University of Pennsylvania ‘17, Course Hero Intern

• The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

Jill Tulane University ‘16, Course Hero Intern