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 $00; 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)

Cycles

1