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Discussion :: Microprocessors

  1. Which of the following flag is used in 8086 for string manipulation instructions
  2. A.
    DF
    B.
    AF
    C.
    OF
    D.
    PF

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    Answer : Option A

    Explanation :

    DF

    If Direction Flag is set then string manipulation instructions will auto-decrement the index registers. If cleared then the index registers will be auto-incremented.


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