6.3.5 Function calls are mapped to a unique Verilog function or task call
The converter analyzes function calls and function code to see if they
should be mapped to Verilog functions or to tasks. Python functions
are much more powerful than Verilog subprograms; for example, they are
inherently generic, and they can be called with named association. To
support this power in Verilog, a unique Verilog function or task is
generated per Python function call.
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