Re: [vhdl-200x] Proposal for improved physical types

From: Tristan Gingold <tgingold@free.fr>
Date: Sat Jan 10 2015 - 21:26:05 PST
On 10/01/15 09:00, Daniel Kho wrote:
> Jan Decaluwe explains this clearly in one of his suggestions, and which
> I also agree:
>
> -- JanDecaluwe <http://www.eda-twiki.org/cgi-bin/view.cgi/Main/JanDecaluwe>
> - 2014-11-02 My suggestion is to implement this similar to vector types:
> allow unconstrained types (e.g. UNIVERSAL_INTEGER) in interfaces, but
> require finite constraints at elaboration time. This would provide the
> modeling advantages of arbitrary length integers while keeping the
> advantage of a compiled language: the elaborator/compiler could perform
> optimizations based on the constraints. This should address any
> performance concerns.

This is already supported by vhdl2008 generic types.

(I also think that the presence of UNIVERSAL_INTEGER pollutes the proposal.)

Tristan.


-- 
This message has been scanned for viruses and
dangerous content by MailScanner, and is
believed to be clean.
Received on Sat Jan 10 21:26:15 2015

This archive was generated by hypermail 2.1.8 : Sat Jan 10 2015 - 21:27:07 PST