[sv-bc] BNF error in configuration use_clause

Priya Khanna from Atrenta brought to my attention that there appears to be a BNF error in the syntax for use_clause parameter assignments in configurations.

All the examples show named parameter assignments enclosed in #(...), like this:

config cfgl;
design rtlLib.top;
instance top use #(.WIDTH(32));
instance top.a1 use #(.W(top.WIDTH));
endconfig

However, the BNF is

use_clause ::= use [ library_identifier . ] cell_identifier [ : config ]
| use named_parameter_assignment { , named_parameter_assignment } [ : config ]
| use [ library_identifier . ] cell_identifier named_parameter_assignment { , named_parameter_assignment } [ : config ]


and named_parameter_assignment is

named_parameter_assignment ::= . parameter_identifier ( [ param_expression ] )

It looks to me like the syntax used in use_clause should have been parameter_value_assignment:

parameter_value_assignment ::= # ( [ list_of_parameter_assignments ] )

list_of_parameter_assignments ::=
ordered_parameter_assignment { , ordered_parameter_assignment }
| named_parameter_assignment { , named_parameter_assignment }

ordered_parameter_assignment ::= param_expression
named_parameter_assignment ::= . parameter_identifier ( [ param_expression ] )

with maybe a footnote that only named_parameter_assignments are allowed in use_clauses and not ordered_parameter_assignments.

How did we miss that?

Shalom Bresticker
Communications & Storage Infrastructure Group Design Automation
Intel Jerusalem, Israel
+972  2 589 6582 (office)
+972 54 721 1033 (cell)
http://www.linkedin.com/in/shalombresticker
The devil is in the details.

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