Hardware Calculator From Scratch

The Hardware Calculator From Scratch is a minimalistic project that utilizes only binary floating-point arithmetic for doing math. It does not support function evaluation.

However, for the sake of completeness, I've implemented a few side projects, that cover these additional topics separately. These are written in C++ instead of assembly, as we already know how to implement software floating-point emulation in assembly — so using assembly here would bring no additional educational value.

• Fixed-point arithmetic (binary, decimal): https://github.com/igor-240340/FixedPointArithmetic.
• Binary-coded decimal arithmetic (BCD): https://github.com/igor-240340/BCDArithmetic.
• Random number generation: https://github.com/igor-240340/RandomNumberGeneration.
• Elementary functions approximation (sin/cos/sqrt): https://github.com/igor-240340/FunctionApproximation.

So, if you understand binary floating point and the above topics, you’ll be able to implement an industrial-grade hardware calculator that uses BCD floating-point and can evaluate elementary functions — all on your own, without looking anything up.

You'll be able to implement even a graphing calculator! By the way, I've also written a simple software rasterizer which you can find and study here: https://github.com/igor-240340/SoftwareRenderer.

If you know how to juggle numbers and draw graphics on the low level, you can do some fun stuff.