2 votes 2 votes Is the following instruction a no operation instruction? If yes, how? As R0 will now have 2*R0 as value so can it be really considered as NOP even if the value of register R0 changed? ADD R0,R0,R0 CO and Architecture easy + – shraddha priya asked Jun 9, 2017 shraddha priya 367 views answer comment Share Follow See all 0 reply Please log in or register to add a comment.