Tips and Hints

Review the Tips and Hints from the generator assignment: much of it applies to this assignment as well. In particular, the style and design sections are necessary.
Write tests before you implement the things they will test. The testing script provided is designed to handle failed test cases. You can reduce output in the testing tool by passing the -q flag.
As with the generator assignment, the ANTLR visitor pattern is best for implementing the interpreter.
The RISC-V, ARM, and x86 compilers can be built using either the visitor or the listener pattern. The listener may be more appropriate so it is the suggested method.
A single listener or visitor should be able to handle the x86, RISC-V, and ARM code generation. All that should change is the templated strings.
In addition to the previous tips, here’s how to stay stylish in this assignment:
- There is no specified syntax guide for use with inja, thus you could write your strings in any style that you choose. I suggest you use implicit string concatenation to delineate your strings. For example, this may be a format string for literal division:
```
std::string literalDivision =
  "\n  # Div.\n"
  "  addi  t0, zero, {{ dividend }} # Set dividend.\n"
  "  addi  t1, zero, {{ divisor }}  # Set divisor.\n"
  "  div   t2, t0, t1               # Divide.\n"
```
This assignment will be extended to build a calculator that handles vectors in the next assignment. For that assignment you will need to do type checking. Therefore you are advised to:
- Read that assignment now.
- Include type checking in this solution even though you are only required to handle integers in this assignment.
You are allowed to use RISC-V pseudo-instructions.