Editor's Note: This is the first article in a two-part series on decimal representations and decimal arithmetic in general, and on Binary Coded Decimal (BCD) in particular. In this first installment, ...

In the first column of this series, I introduced the concepts underlying BCD (binary-coded-decimal) representations. In my second column I discussed how we go about adding and subtracting unsigned BCD ...

While desktop computers have tons of computing power and storage, some small CPUs don’t have a lot of space to store things. What’s more is some CPUs don’t do multiplication and division very well.