6.73.2 Status Register (SREG) and Boolean Formula


I	T	H	S	V	N	Z	C
–	–	⇔	⇔	⇔	⇔	⇔	⇔

H

Rd3

S

N ⊕ V, for signed tests.

V

N ⊕ C, for N and C after the shift.

N

Set if MSB of the result is set; cleared otherwise.

Z

R7 ∧ R6 ∧ R5 ∧ R4 ∧ R3 ∧ R2 ∧ R1 ∧ R0

Set if the result is 0x00; cleared otherwise.

C

Rd7

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

R (Result) equals Rd after the operation.

Example:

      add   r0,r4  ; Add r4 to r0
      lsl   r0     ; Multiply r0 by 2