AHDL

<rgroup> Syntax



<rgroup> ::=
     |  <rgroup> . <dot group>
     |  ! <rgroup>
     |  <number>
     |  <symbolic name>
     |  <symbolic name> [ ]
     |  <symbolic name> [ <range> ]
     |  <symbolic name> [ <range> ][ <range> ]
     |  VCC
     |  GND
     |  <rgroup> == <rgroup>
     |  <rgroup> >= <rgroup>
     |  <rgroup> > <rgroup>
     |  <rgroup> <= <rgroup>
     |  <rgroup> < <rgroup>
     |  <rgroup> != <rgroup>
     |  <rgroup> # <rgroup>
     |  <rgroup> !# <rgroup>
     |  <rgroup> & <rgroup>
     |  <rgroup> !& <rgroup>
     |  <rgroup> $ <rgroup>
     |  <rgroup> !$ <rgroup>
     |  <rgroup> + <rgroup>
     |  <rgroup> - <rgroup>
     |  - <rgroup>
     |  + <rgroup>
     |  <subdesign> ( <rgroup list> )
     |  <primitive> ( <rgroup list> )
     |  ( <rgroup list> )

NOTE You can name Boolean operators and comparators by prefixing them with a <symbolic name> followed by a colon (:). For example, tiger:& names the & operator as tiger.


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