15-122 Principles of Imperative Computation
Lecture 2: Ints

• Reading: 02-ints.pdf
• Code: binplus.c0
• Concepts:
  • Binary representation of natural numbers
  • Modular arithmetic
  • Two's complement representation
  • Hexadecimal notation
  • Bit-wise operations on ints: and, or, xor (exclusive or)
  • Algorithm for binary addition
  • RGB color model
  • ARGB representation of pixels in ints
  • Shifting and masking
• Previous lecture: Overview
• Next lecture: Binary Search

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Frank Pfenning