[sv-bc] RE: [sv-ec] Mantis 2929: ref_declaration should use list_of_variable_port_identifiers

I uploaded the attached proposal.

Shalom

From: owner-sv-ec@eda.org [mailto:owner-sv-ec@eda.org] On Behalf Of Bresticker, Shalom
Sent: Monday, November 08, 2010 11:31 AM
To: sv-bc@eda.org
Cc: sv-ec@eda.org
Subject: [sv-ec] Mantis 2929: ref_declaration should use list_of_variable_port_identifiers

Mantis 2929 requests to allow non-ANSI ref ports to be variable-size arrays.

In detail, the non-ANSI port declaration syntax currently looks like this:

inout_declaration ::= inout net_port_type list_of_port_identifiers

input_declaration ::=
  input net_port_type list_of_port_identifiers
| input variable_port_type list_of_variable_identifiers

output_declaration ::=
  output net_port_type list_of_port_identifiers
| output variable_port_type list_of_variable_port_identifiers

ref_declaration ::= ref variable_port_type list_of_port_identifiers

The difference between list_of_port_identifiers on the one hand, and list_of_variable_identifiers and list_of_variable_port_identifiers on the other, is that the former allows only fixed unpacked dimensions, whereas the latter two allow variable-sized unpacked dimensions.

So input and output port declarations already allow variable-sized dimensions.

(The difference between list_of_variable_identifiers and list_of_variable_port_identifiers is that the latter also allows an initializer.)

ANSI-style ref declarations also seem to allow ref ports to have variable-size dimensions.

Are there any objections to changing the ref_declaration syntax to use list_of_variable_identifiers (not list_of_variable_port_identifiers)?

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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