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

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

View Full Document Right Arrow Icon
Engr 356 Basic Computer Architecture Test #2 (11-3-2010) ______________________________ N a m e 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.
Background image of page 1

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

View Full DocumentRight Arrow Icon
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
Background image of page 2
Background image of page 3
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

This note was uploaded on 01/11/2011 for the course ENGR 356 taught by Professor Valverde during the Fall '08 term at S.F. State.

Page1 / 3

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

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online