Re: [myhdl-list] Would you ...

[Christopher F. <chr...@gm...>]

On 9/25/2012 10:56 AM, Tom Dillon wrote:
> My personal preference is named arguments.
>
> I also use signal arguments to pass some functionality as well.
>
> Such as:
>
> mymodule(clock=None,reset=None, a=sig1, b=sig2, c=sig3, UseFilt=False)
>
> Would make it asynchronous. The mymodule definition would have to check
> for clock==None and return the appropriate logic.
>
>

I agree, name arguments is what you usually want and your example is a 
perfect demonstration of creating very flexible IP.

The use of "interfaces" helps as well.

     mymodule(syssigs=None, datapath=datapath, UseFilt=False)

and in the module you can have

     def mymodule(...):
         (a,b,c) = datapath.GetSigs()
         if syssigs is not None:
             clock = syssigs.clock
             reset = syssigs.reset
             # ...
         else:
             # ...

where datapath is:
     class Datapath(object):
         def __init__(self):
             self.a,self.b,self.c = [Signal...]
         def GetSigs(self):
             return self.a,self.b,self.c


Regards,
Chris