2 votes 2 votes The addition of 4 bits two complement binary numbers $1101$ and $0100$ results in 0001 and an overflow 1001 and no overflow 0001 and no overflow 1001 and an overflow Digital Logic digital-logic go-digital-logic-1 number-representation + – Bikram asked Sep 20, 2016 Bikram 408 views answer comment Share Follow See all 0 reply Please log in or register to add a comment.
3 votes 3 votes Overflow cannot occur when number under addition are of opposite sign Here one number is +ve and another is -ve Now we perform 2's compliment arithmetic 1101 + 0100 == 10001 discard carry as in 2's compliment rule Final answer 0001 no overflow Tesla! answered Jul 22, 2017 Tesla! comment Share Follow See all 2 Comments See all 2 2 Comments reply JAINchiNMay commented May 1, 2021 reply Follow Share how do you know whether it is 1’s compliment addition or 1’s compliment addition 0 votes 0 votes minimalist commented Dec 28, 2023 reply Follow Share adding 2’s complement number means 2’s complement additionadding 1’s complement number means 1’s complement additionIn 1’s complement addition, carry is added back to result.In 2’s complement addition, carry is discarded.Adding +ve and -ve number there is no overflow.Adding two +ve number or two -ve number may or may not overflow1101 //In 2’s complement as given in Question0100 //In 2’s complement0001 and carry =1 which will be discardedhttps://gateoverflow.in/3546/gate-it-2006-question-7-isro2009-41(same Question) 0 votes 0 votes Please log in or register to add a comment.