CSE 370 Lecture 3 Wrapping up 2s Complement. Starting Boolean - - PDF document

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CSE 370 Lecture 3 Wrapping up 2s Complement. Starting Boolean - - PDF document

Sep 11, 2022 419 likes •504 views

4/3/2008 CSE 370 Lecture 3 Wrapping up 2s Complement. Starting Boolean Algebra. Lecture 2 Recap: Hexadecimal has 16 symbols, Decimal 10, Octal 8, Binary has 2 Learnt the kung-fu required to switch between bases Binary in digital

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CSE 370 Lecture 3

Wrapping up 2’s Complement. Starting Boolean Algebra. Lecture 2 Recap:

  • Hexadecimal has 16 symbols, Decimal 10, Octal 8, Binary has 2
  • Learnt the kung-fu required to switch between bases
  • Binary in digital systems:
  • Finite and Fixed word length
  • How do we decide on a word length for our system?
  • Log2 x = No. of bits we will need
  • What about Negative Numbers?
  • Sign Magnitude
  • One’s complement
  • 2’s complement

4/4/2008 1 CSE 370: Lecture 3

Some Observations about 2’s complement

  • Range: - 2N-1 to 2N-1 -1
  • The weird number: most negative number
  • Trick: Fast way to do 2’s complement

4/4/2008 2 CSE 370: Lecture 3

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4/4/2008 3 CSE 370: Lecture 3 4/4/2008 4 CSE 370: Lecture 3

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4/4/2008 5 CSE 370: Lecture 3 4/4/2008 6 CSE 370: Lecture 3

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4/4/2008 7 CSE 370: Lecture 3 4/4/2008 8 CSE 370: Lecture 3

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4/4/2008 CSE 370: Lecture 3 9 4/4/2008 10 CSE 370: Lecture 3

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4/4/2008 11 CSE 370: Lecture 3 4/4/2008 12 CSE 370: Lecture 3

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4/4/2008 13 CSE 370: Lecture 3