be taken. None of them - at all - leverage the fact that nmigen
has two different inter-related abstraction levels.
-* **Explicit Code**. For every ALU, write code which is inherently
+* **Explicit Code**. For every ALU, write code (in nmigen 0.3
+ at the time of writing) which is inherently
parallel, rather than duplicated with a series of Switch/Case or
an if-elif-elif chain based on what the partition mask is set to.
* **Use a low-level class**. Rather than tie in to nmigen, write a