Project 3 – Building a simple calculator
Now that we've gone over state machine basics and showed the core of our calculator, we need to look at how we'll actually implement the calculator. The first issue that will come up is how do we store our data in the design. Previously, we used BCD when we were incrementing our values. There was a simple solution presented for the BCD incrementor.
If we wanted to keep the internal data as BCD, we would need to develop a BCD adder, subtractor, and multiplier. This is a more complicated option than a simple incrementor. Alternatively, we can explore the possibility of keeping our internal representation as binary, but convert to decimal to display. This has the added advantage that we can use the SystemVerilog add, subtract, and multiply operators as-is on binary representation and then create a conversion function.
The project files can be found in the following locations:
- Nexys A7:
CH4/build/calculator/calculator...
