Midterm2007

# Midterm2007 - EECE Sections 101&102 midterm THE UNIVERSITY...

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Sections 101&102 - midterm Dr. Panos Nasiopoulos You can write on the back of each page if you need extra space 1 THE UNIVERSITY OF BRITISH COLUMBIA November 5, 2007 EECE 256 – Sections 101 & 102 Student name:____________________________ S#: ________________Section:________ Midterm – 50 minutes Closed book – No calculators are allowed 1. Consider number A of X bits stored in sign magnitude as shown in the figure below (most significant bit is the sign, X-1 bits magnitude). Design the digital circuit that can inform us (by turning a light on) that if the number stored in this location was to be multiplied by 2, it would result in a number that could still be stored in the X-1 bits (i.e., no overflow would result). Your can assume that in your design you may use “wires” connected directly to the bit locations. Use the MINIMUM number of gates. (20%) – show all your work. ? F equals to 1 if A*2 can still be

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Midterm2007 - EECE Sections 101&102 midterm THE UNIVERSITY...

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