Date: Wed Jan 26 2011 - 03:21:30 PST
Hello,
I am trying to understand why in constant_primary there exists [constant_range_expression] after constant_concatenation ? or after specparam_identifier?
constant_primary ::=
primary_literal
| ps_parameter_identifier constant_select
| specparam_identifier [ [ constant_range_expression ] ]
| genvar_identifier35
| [ package_scope | class_scope ] enum_identifier
| constant_concatenation [ [ constant_range_expression ] ]
| constant_multiple_concatenation [ [ constant_range_expression ] ]
| constant_function_call
| constant_let_expression
| ( constant_mintypmax_expression )
| constant_cast
| constant_assignment_pattern_expression
| type_reference36
My immediate guess is to be able to write 4'b1100[2:1].
However, I am sure that there exists a better explanation, can you please help?
Thanks,
Laurence
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