1. Chapter 2 Guobao Jiang 11210240049@fudan.edu.cn

2. Outline 2.1 Information Storage 2.2 Integer Representations 2.3 Integer Arithmetic 2.4 Floating Point 2.5 Summary 2

3. 2.1 Information Storage Problem 2.1 (P29) A. 0x8F7A93 to binary3 8 F 7 A 9 3 1000 1111 0111 1010 1001 0011 D. Binary 1101011011011111100110 to hexadecimal 0011 0101 1011 0111 1110 0110 3 5 B 7 E 6 3

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5. Boolean Algebras and Rings Ring (Integer ring, Modular arithmetic) Boolean algebra Note :the operations are different! 5

6. Logical Operations and Bit-level Operations P49 LO: 1) nonzero argument as TRUE, 0 as FALSE 2) logical operators do not evaluate their second argument if what? 6