Re: [myhdl-list] MEP - keep hierarchy in conversion

[David H. <da...@ad...>]

On Wed, Oct 2, 2013 at 7:33 AM, Jan Decaluwe <ja...@ja...> wrote:

> <snip>
> I am not discussing the concept now, but David's proposed method.
> Let's make this practical. If I understand David's solution,
> one would define a desired output partition by significant,
> non-functional changes to the source code.
>

Nope, sorry but perhaps that is where the confusion lies.

The only change required to group a set of logic into a partition is to add:

    with partition('a_name'):
        # put your usual logic here ...


Suppose someone does this for his requirements, and later you
> inherit that IP block. Now suppose you need a different kind of
> partitioning - your only option would be to make significant,
> non-functional changes (hopefully) to the source code.
>

If I decide I don't like how my partitioning came out, then I move around 1
or 2 "with ..." statements, and I don't spend time sorting out port
declarations and other banal book keeping.  (But I will glance at the
output to verify the resulting port declarations are sane.)

As Per pointed out, this provides a "decoupling the design hierarchy from
the physical hierarchy".



> Do you really want that?


I did.  So, I created it, and I'm not forcing this patch on anyone.  I
offered it in case anyone else finds it useful, just as I found myhdl
useful.

- David