Datasheet

ATmega48PA/88PA/168PA [DATASHEET]

9223F–AVR–04/14

• Bit 5 – H: Half Carry Flag

The half carry flag H indicates a half carry in some arithmetic operations. Half carry Is useful in BCD arithmetic.

See Section 32. “Instruction Set Summary” on page 317 for detailed information.

• Bit 4 – S: Sign Bit, S = N Å V

The S-bit is always an exclusive or between the negative flag N and the two’s complement overflow flag V.

See Section 32. “Instruction Set Summary” on page 317 for detailed information.

• Bit 3 – V: Two’s Complement Overflow Flag

The two’s complement overflow flag V supports two’s complement arithmetic. See

Section 32. “Instruction Set Summary” on page 317 for detailed information.

• Bit 2 – N: Negative Flag

The negative flag N indicates a negative result in an arithmetic or logic operation. See

Section 32. “Instruction Set Summary” on page 317 for detailed information.

• Bit 1 – Z: Zero Flag

The zero flag Z indicates a zero result in an arithmetic or logic operation. See

Section 32. “Instruction Set Summary” on page 317 for detailed information.

• Bit 0 – C: Carry Flag

The carry flag C indicates a carry in an arithmetic or logic operation. See Section 32. “Instruction Set Summary” on page 317

for detailed information.