DerekChiou_EE306_Spring2009_Lecture4

DerekChiou_EE306_Spring2009_Lecture4 - 32b Floating Point S...

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© Derek Click to edit Master subtitle style 2/2/2009 © Derek Chiou : EE306: Lecture 4 306: Floating Point, ASCII, Logical Equations Prof. Derek Chiou University of Texas at Austin
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Administration l My office hours l M 5PM-6PM l T 5PM-6PM l Or by appointment
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l Recap l Converting between bases l Logical operations on bits. AND, OR, NOT. l Other representations l Bit vector l Floating point l Outline l Review floating point l Discuss ASCII l Subtracting l Logical Equations
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Unformatted text preview: 32b Floating Point S Exponent Mantissa (fraction) 1 8 23 N = (-1)S * 1.fraction * 2 exponent-127 normalized ASCII l American Standard Code for Information Interchange l Each keyboard key is identified by a unique ASCII code (integer) l ASCII(‘0’) = 0d48 l ASCII(‘1’) = 0d49 l ASCII(‘9’) = 0d57 l ASCII(‘a’) = 0d97 l ASCII(‘z’) = 0d122 l Etc. Logical Equations l A & B + C Logical Gates...
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