Programming.
→ALUi1, Rr →ALUi2, perform subtraction Use ALU.Z to select the PC increment (1 or 2) What about the similar instructions? BRBS (and BRBC) test a bit in SREG, and if the bit is set (cleared), add k+1 to the PC, otherwise they add 1 to the PC. The ALU should simply perform a bit test operation