{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

# t2 - d If the number B is stored in a switched-tail ring...

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

Engr 356 Basic Computer Architecture Test #2 (11-3-2010) ______________________________ Name NOTE: Be sure to label all signals Reduce the number of circuit elements used is always an implied requirement for all design problems 1. Design a full adder using a decoder and two logic gates, if needed. Show the interconnections of 4 such adders (you may use a simple box to represent a full adder here but make sure to show all inputs and outputs) to form a 4-bit ripple adder. 2. Implement the logic function, F = B’(A + C + D) + BC’, using only 4-input MUXs and one inverter, if needed.

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

View Full Document
3. Let A = -23 and B = +32 be two signed decimal numbers. a) Express A and B in signed binary number format (with negative numbers in the 2’s complete form) b) Perform A-B using binary addition [i.e., A + (-B)]. Is the result correct? c) Obtain the result of performing two arithmetic right shifts to the number A
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: d) If the number B is stored in a switched-tail ring counter, what is the content of this counter after 2 clocks? 4. The diagram below is a “typical stage i” of a register (with its neighboring stage i+1 shown in the dashed box). Analyze the circuit by going through sequential circuit analysis procedures including combinational analysis, state transition and state table, and state diagram. What operations can this register perform? I i 1 0 MUX s X clock D D i+1 i Q Q 5. Design a variable length counter using SR FFs and NAND gates. The control input, C, controls the length of the count: If C=1, the counting sequence is 0,1,0,1,…. If C=0, the sequence is 0,1,2,0,1,2,…. The next state of any unused state should be 0. Show all design steps starting with a state diagram....
View Full 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