Re: [myhdl-list] fixbv to current version of myhdl

[Henry G. <he...@ca...>]

On 02/05/15 19:01, Christopher Felton wrote:
> On 5/2/15 11:27 AM, Henry Gomersall wrote:
>> >On 02/05/15 16:47, Christopher Felton wrote:
>>> >>On 5/2/15 8:55 AM, Edward Vidal wrote:
>>>>> >>>>Chris,
>>>>> >>>>Athttp://dev.myhdl.org/meps/mep-111.html
>>>>> >>>>Limitations no resize (function yet).
>>>>> >>>>Is this still true?
>>> >>There is a resize function but it is not convertible
>>> >>at this point.  I can make a convertible version but
>>> >>I didn't like how it worked out, been experimenting
>>> >>with other methods.  The existing resize function
>>> >>can be used for modeling and testing at this point.
>>> >>
>> >
>> >How does it work?
> Here is the `model` how I thought it should
> work:
> https://github.com/cfelton/myhdl/blob/mep111_fixbv/myhdl/_resize.py
>

So I was wondering about this. Is there not a problem in that the 
performance of any converted implementation is so sensitive to e.g. the 
number of pipeline registers?

In my mind, it would make perfect sense to have this as a convertible, 
parametrizable instance.

It would be lovely to have as a simple function, but it's hard to get 
away from the fact that there are design decisions intrinsic to a resize 
that have quite a bearing on the RTL model. If I'm wrong on this, I'm 
keen to be educated!

Cheers,

Henry