[vhdl-200x-ft] numeric_bit package

From: David Bishop <dbishop_at_.....>
Date: Tue Mar 01 2005 - 08:56:08 PST
In numeric_bit (SIGNED and UNSIGNED types using BIT_VECTOR logic) we
have the following functions:

   -- Id: S.9
   function "sll" (ARG : UNSIGNED; COUNT: INTEGER) return UNSIGNED;
   -- Id: S.10
   function "sll" (ARG : SIGNED; COUNT: INTEGER) return SIGNED;
   -- Id: S.11
   function "srl" (ARG : UNSIGNED; COUNT: INTEGER) return UNSIGNED;
   -- Id: S.12
   function "srl" (ARG : SIGNED; COUNT: INTEGER) return SIGNED;
   -- Id: S.13
   function "rol" (ARG : UNSIGNED; COUNT: INTEGER) return UNSIGNED;
   -- Id: S.14
   function "rol" (ARG : SIGNED; COUNT: INTEGER) return SIGNED;
   -- Id: S.15
   function "ror" (ARG : UNSIGNED; COUNT: INTEGER) return UNSIGNED;
   -- Id: S.16
   function "ror" (ARG : SIGNED; COUNT: INTEGER) return SIGNED;

These functions are in the original 1076.3 specification.  According to
our conversation in the telecon last night, they are implicit.  Should
I comment them out?

Also, we have
   -- Id: E.1
   function RISING_EDGE (signal S: BIT) return BOOLEAN;
   -- Id: E.2
   function FALLING_EDGE (signal S: BIT) return BOOLEAN;

Since we have moved these functions into std.standard there will be
a conflict if these are visible.  I will comment them out.

-- 
David W. Bishop dbishop@vhdl.org       All standard disclaimers apply.
Received on Tue Mar 1 08:56:10 2005

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