RE: [sv-bc] ansi interface port declarations

Yes, but I was thinking more along the lines that module interface ports cannot have default values.

Shalom

From: Greg Jaxon [mailto:Greg.Jaxon@synopsys.com]
Sent: Monday, August 22, 2011 11:38 PM
To: Bresticker, Shalom
Cc: SV-BC
Subject: Re: [sv-bc] ansi interface port declarations

That helps dispel the idea that there is some constant_expression of interface_type.
However, the list_of_port_connections syntax still calls all connections "expression"s.

Greg

On 8/21/2011 9:24 AM, Bresticker, Shalom wrote:
Hi,

I have returned to working on port declarations, particularly on integrating interface port declarations (i.e., port that is an interface, not a port of an interface), hoping we can approve something before the October 1 deadline, though I am in doubt whether I will be able to attend the September 12 meeting.

Anyway, Mantis 1619, which added default values to input net ports in ANSI style declarations changed the BNF from

ansi_port_declaration ::= [ net_port_header | interface_port_header ] port_identifier { unpacked_dimension } | ...

to

ansi_port_declaration ::= [ net_port_header | interface_port_header ] port_identifier { unpacked_dimension } [ = constant_expression ] | ...

The addition of the [= constant_expression] is appropriate for net_port_header, but does not seem so for interface_port_header. I think we should split them into two, like this:

ansi_port_declaration ::= [ net_port_header ] port_identifier { unpacked_dimension } [ = constant_expression ]
                                      | [ interface_port_header ] port_identifier { unpacked_dimension }
                                       | ...

Any comments?

Thanks,
Shalom

Shalom Bresticker
Intel LAD DA, Jerusalem, Israel
+972 2 589 6582 (office)
+972 54 721 1033 (cell)
http://www.linkedin.com/in/shalombresticker

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