Explain Briefly The Flag Register In The 8085 Microprocessor.?

1.	Explain Briefly The Flag Register In The 8085 Microprocessor.?
Answer» The flag register in 8085 is an 8-bit register which contains 5 bit positions. These five flags are of 1BIT F/F and are known as zero, sign, carry, PARITY and auxiliary carry. For sign flag if the result of an MSB operation is 1 then it is set else it is RESET. The zero flag is set of the result of an instruction is zero. The auxiliary carry flag is used for BCD operations, not FREE to the programmer. The carry flag is used for carrying and borrowing in case of addition and subtraction operations. The parity flag is used for results containing an even number of one's.

Answer»

The flag register in 8085 is an 8-bit register which contains 5 bit positions.
These five flags are of 1BIT F/F and are known as zero, sign, carry, PARITY and auxiliary carry.
For sign flag if the result of an MSB operation is 1 then it is set else it is RESET.
The zero flag is set of the result of an instruction is zero.
The auxiliary carry flag is used for BCD operations, not FREE to the programmer.
The carry flag is used for carrying and borrowing in case of addition and subtraction operations.
The parity flag is used for results containing an even number of one's.

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