Status Register (SREG) and Boolean Formula

I	T	H	S	V	N	Z	C
–	–	–	–	–	–	⇔	⇔

C

R15

Z

R15 • R14 • R13 • R12 • R11 • R10 • R9 • R8R7 • R6 • R5 • R4 • R3 • R2 • R1 • R0

Set if the result is $0000; cleared otherwise.

R (Result) equals R1,R0 after the operation.

Example:

muls r21,r20 ; Multiply signed r21 and r20
mov w r20,r0 ; Copy result back in r21:r20