Flag Register in 8085 Microprocessor | Carry Flag | Sign Flag | Zero Flag | Types of Flag Register
The Flag register is a 5-bit register in the 8085 microprocessor that contains information about the status of the arithmetic and logic operations performed by the processor.
In 8085 microprocessor, the flags register can have a total of eight flags. Thus a flag can be represented by 1 bit of information. But only five flags are implemented in 8085. And they are:
Carry flag (Cy),
Auxiliary carry flag (AC),
Sign flag (S),
Parity flag (P), and
Zero flag (Z).
The respective position of these flag bits in flag register has been show the below figure. The positions marked by “x” are to be considered as don't care bits in the flags register. The user is not required to memorize the positions of these flags in the flags register.