Why Do We Use Excess-3 In Binary Code?
Why Do We Use Excess-3 In Binary Code? Motivation. The primary advantage of excess-3 coding over non-biased coding is that a decimal number can be nines’ complemented (for subtraction) as easily as a binary number can be ones’ complemented: just by inverting all bits. What is the purpose of excess-3 code? The excess-3 code (or