Status Register (SREG) and Boolean Formula

I	T	H	S	V	N	Z	C
–	–	–	–	–	–	–	–

R (Result) equals Rd after the operation.

Example:

 inc r1 ; Increment r1
 swap r1 ; Swap high and low nibble of r1
 inc r1 ; Increment high nibble of r1
 swap r1 ; Swap back