6 votes 6 votes A two- word instruction is stored in a location A. The operand part of instruction holds B. If the addressing mode is relative , the operand is available in location : A. A+B+2 B.A+B+1 C.B+1 D.A+B Explain with diagram. CO and Architecture co-and-architecture addressing-modes + – dragonball asked Dec 17, 2017 dragonball 3.8k views answer comment Share Follow See all 4 Comments See all 4 4 Comments reply Red_devil commented Dec 17, 2017 reply Follow Share A??? 0 votes 0 votes Ashwin Kulkarni commented Dec 17, 2017 reply Follow Share Here we use concept of effective address. EA = PC + operand part after fetching instruction PC will be incremented by 2 Hence PC = A+2 operand part = B. Hence effective address = A+B+2. 3 votes 3 votes priyanka manwani commented Sep 8, 2018 reply Follow Share why we are adding operand???since when did this started to happen?? can you please make a diagram of this 0 votes 0 votes Saloni27 commented Sep 14, 2019 reply Follow Share @ashwina can you plzz verify the ans for this question? 0 votes 0 votes Please log in or register to add a comment.
Best answer 1 votes 1 votes Since the addressing mode is relative therefore EA=A+PC where A is the address of current instruction being executed therefore during execution of instruction A the pc contains A+2 as it is a 2 word instruction as soon as it gets location B then operand will available at A+B+2 Saloni27 answered Sep 14, 2019 • selected Sep 15, 2019 by dragonball Saloni27 comment Share Follow See 1 comment See all 1 1 comment reply debasish paramanik commented Sep 25, 2020 reply Follow Share Please correct it EA=B+PC 1 votes 1 votes Please log in or register to add a comment.
