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In the 8085 microprocessor, which of the following flags are present in the flag register ?

  • A.Zero flag
  • B.Carry flag
  • C.Sign flag
  • D.All of the above

Answer: D

The answer is All of the above.

The 8085 flag register contains the Sign, Zero, Auxiliary Carry, Parity and Carry flags. The zero, carry and sign flags named in the options are all among them.

Choosing any single flag would leave out the other two, which are also present.

Each flag is a single bit set by the result of an operation: Zero when the result is 0, Carry on a carry out of bit 7, and Sign when bit 7 of the result is 1.

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