From: Dennis Marsa (drm@xilinx.com)
Date: Thu Aug 09 2001 - 15:09:57 PDT
Stefen Boyd wrote:
> Looks like we need a hierarchical parameter identifier.
>
> IS:
> param_assignment ::= parameter_identifier = constant_expression
>
> Proposed:
> param_assignment ::= hierarchical_parameter_identifier = constant_expression
>
> but we'll have to define hierarchical_parameter_identifier.
>
> Looks like this was also broken in 1364-1995.
<p>The above change would allow:
parameter a.b.c = 1;
localparam a.b.c = 1;
as well as the intended:
defparam a.b.c = 1;
ince param_assignment rule is reachable from the parameter_declaration and
local_parameter_declaration rules.
How about:
- leave "param_assignment" as is.
- add new rules:
defparam_assignment ::= hierarchical_parameter_identifier = constant_expression
list_of_defparam_assignments ::= defparam_assignment { , defparam_assignment }
- change:
parameter_override ::= "defparam" list_of_param_assignments
to:
parameter_override ::= "defparam" list_of_defparam_assignments
<p>Dennis Marsa
Xilinx, Inc.
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