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2 2 . What is the function of the auxiliary carry flag ( AF ) in the flag register of the 8 0 8 6

22. What is the function of the auxiliary carry flag (AF) in the flag register of the 8086 microprocessor?
A) Indicates a carry out of the most significant bit
B) Indicates a carry into or borrow from bit 3 in arithmetic operations
C) Indicates an overflow in arithmetic operations
D) Indicates that the result of an arithmetic operation is zero

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