How can we design a full subtractor using two half-adders and an OR gate?

United Arab Emirates
January 19, 2007 3:58am CST
How can we design a full subtractor using two half-adders and an OR gate?
1 response
alaaeldinalex
@alaaeldinalex (48)
• Egypt
20 Jan 07
connect them as follows: ______ Ao --| | -- result 0 Bo --|____| -- borrow 0 (half adder) __ borrow 0 --} \__ temp 0 (or) B1 --}_/ _____ A1 --| | -- result 1 temp 0 --|___| -- sign bit