6.74.2 Status Register (SREG) and Boolean Formula

S

N ⊕ V, for signed tests.

V

N ⊕ C, for N and C after the shift.

N

0

Z

R7 ∧ R6 ∧ R5 ∧ R4 ∧ R3 ∧ R2 ∧ R1 ∧ R0

Set if the result is 0x00; cleared otherwise.

C

Rd0

Set if, before the shift, the LSB of Rd was set; cleared otherwise.

R (Result) equals Rd after the operation.

Example:

      add   r0,r4  ; Add r4 to r0
      lsr   r0     ; Divide r0 by 2

Words

1 (2 bytes)