0 votes 0 votes HOW to add 123+789 in bcd using auxiliary flag? Know how to use auuxiliary flag ad do 2 bit bcd addition but if 3 bits are there then can we use auxiliary here? Digital Logic digital-logic + – Tendua asked Dec 11, 2016 Tendua 575 views answer comment Share Follow See all 0 reply Please log in or register to add a comment.