The last calculator (8B02), introduced the subtraction but that made the calculator slower on crunching numbers. Someone named Sarnnox helped me to achieve faster calculations, he gave me his ALU design which I implemented into the calculator, his design made the calculator not only faster but more compact being around twice as small!

If you want to know how to use this calculator, there is a manual wall of signs that describe how to input and read in binary. There are two sections of the manual, "Binary Basics" and "How to Use". The binary Basics section basically describes how do you input in binary and what's 1 or 0. The How to Use Section gives 3 steps to how to use this calculator.

So far, the 8B03 is faster and smaller than it's predecessor (The 8B02). Also, a big thanks for Sarnnox for helping me make the calculator by giving me his ALU design to implement into the calculator.