PyHCL/docs/Semantic/Semantic.md

# Semantic

## Assignments
* `@=` and `@=` 
```python
# io.sum @= a_xor_b ^ io.cin
io.sum @= a_xor_b ^ io.cin
```

## Control Flow
* `with when()` `with elsewhen()` and `with otherwise`

* `Mux`
  
```python
io.o @= Mux(io.i, a, b)
```

## Rules