6.44.2 Status Register (SREG) and Boolean Formula

S

N ⊕ V, for signed tests.

V

0

Cleared.

N

R7

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

1

Set.

R (Result) equals Rd after the operation.

Example:

      com   r4     ; Take one’s complement of r4
      breq  zero   ; Branch if zero
      ...
zero: nop          ; Branch destination (do nothing)

Words

1 (2 bytes)