RE: [sv-bc] part selects on arbitrary expressions

I agree that introducing selects on concatenations is a useful addition
that will provide some relief to the designers.

Unfortunately, this enhancement is limited to packed types, and thus
will solve only a part of the problem. Also, even for packed types, it
looks like a workaround to write a "unary" concatenation, just to be
able to apply a select on the given expression. I really hope that this
enhancement, if accepted, will not slow down the introduction of general
select operators to the language.

--Yulik.

-----Original Message-----
From: owner-sv-bc@server.eda.org [mailto:owner-sv-bc@server.eda.org] On
Behalf Of Bresticker, Shalom
Sent: Monday, November 05, 2007 8:58 AM
To: Brad Pierce; sv-bc@server.eda.org
Subject: RE: [sv-bc] part selects on arbitrary expressions

A concatenation should be treated as a packed vector [n-1:0]. There are
other cases of that in the LRM.

Shalom 

> BTW would {a+b}[0] return the right-most bit?  If we add 
> support for selects of concatenations, we should also make 
> sure that the result of
> type() applied to a concatenation is clearly defined.
---------------------------------------------------------------------
Intel Israel (74) Limited

This e-mail and any attachments may contain confidential material for
the sole use of the intended recipient(s). Any review or distribution
by others is strictly prohibited. If you are not the intended
recipient, please contact the sender and delete all copies.

-- 
This message has been scanned for viruses and
dangerous content by MailScanner, and is
believed to be clean.
---------------------------------------------------------------------
Intel Israel (74) Limited

This e-mail and any attachments may contain confidential material for
the sole use of the intended recipient(s). Any review or distribution
by others is strictly prohibited. If you are not the intended
recipient, please contact the sender and delete all copies.

-- 
This message has been scanned for viruses and
dangerous content by MailScanner, and is
believed to be clean.