4.2 Arithmetic Instructions. ADD, ADC. INC. AAA,DAA. Addition instructions: ADD, ADC, INC ,AAA, DAA. CF ? 0. AF ? 1. Initial AL: 0110 1001+. Initial BL: 0100 1000. Because: 1011>1001 AF=1. +. AL after ADD: 1011 0001. DAA: 0110 0110. CF ? 1. AL after DAA: 0001 0111. AF ?1.
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