0 votes 0 votes Assume the operands are in 2’s Complement. To decrement A by 1, lines K,Cn and B should be : K = 1 , Cin = 1 , B = 1 K = 0 , Cin = 1 , B = 1 K = 0 , Cin = 1 , B = 0 K = 1 , Cin = 0 , B = 0 Digital Logic digital-logic circuit-output made-easy-test-series + – Na462 asked Jan 16, 2019 • edited Mar 3, 2019 by ajaysoni1924 Na462 1.5k views answer comment Share Follow See all 0 reply Please log in or register to add a comment.
0 votes 0 votes Answer is option C ? Yash4444 answered Jan 19, 2019 Yash4444 comment Share Follow See all 7 Comments See all 7 7 Comments reply Na462 commented Jan 19, 2019 reply Follow Share Explain brother 0 votes 0 votes Yash4444 commented Jan 19, 2019 reply Follow Share what is answer btw 0 votes 0 votes Na462 commented Jan 19, 2019 reply Follow Share Its Option D 0 votes 0 votes Na462 commented Jan 19, 2019 reply Follow Share This is the result i didn't understood last one 2 votes 2 votes Manas Mishra commented Jan 19, 2019 reply Follow Share do by logic , let A2A1 = 11 means -1 in 2s complement , so we should get the result -2 i.e S2S1 = 10 by applying the inputs now put all th inputs u will get D as the result 0 votes 0 votes Na462 commented Jan 19, 2019 reply Follow Share Brother please Elaborate your Example a little :) 0 votes 0 votes BASANT KUMAR commented Jul 30, 2019 reply Follow Share we can take any number like 11,10,01 it is in 2's complement number in the form of A2A1 now apply hit and trial for all option only option(d) is satisfy. 0 votes 0 votes Please log in or register to add a comment.