openieee: add support of vhdl 2008 (WIP)

1 files changed, 3 insertions, 8 deletions

diff --git a/libraries/openieee/std_logic_1164.v87 b/libraries/openieee/std_logic_1164.v87
index 841be73a4..1dc5252fd 100644
--- a/libraries/openieee/std_logic_1164.v87
+++ b/libraries/openieee/std_logic_1164.v87
@@ -16,14 +16,12 @@
 --  along with GCC; see the file COPYING2.  If not see
 --  <http://www.gnu.org/licenses/>.
 
---  This package is valid for VHDL version until but not including 2008.
---  For VHDL87, the functions xnor should be removed.
-
 package std_logic_1164 is
 
   --  Unresolved logic state.
   type std_ulogic is
-    ('U',  --  Uninitialized, this is also the default value.
+    (
+     'U',  --  Uninitialized, this is also the default value.
      'X',  --  Unknown / conflict value (forcing level).
      '0',  --  0 (forcing level).
      '1',  --  1 (forcing level).
@@ -32,7 +30,7 @@ package std_logic_1164 is
      'L',  --  0 (weak level).
      'H',  --  1 (weak level).
      '-'   --  Don't care.
-     );
+    );
 
   --  Vector of logic state.
   type std_ulogic_vector is array (natural range <>) of std_ulogic;
@@ -70,7 +68,6 @@ package std_logic_1164 is
   function "or"   (l : std_ulogic; r : std_ulogic) return UX01;
   function "nor"  (l : std_ulogic; r : std_ulogic) return UX01;
   function "xor"  (l : std_ulogic; r : std_ulogic) return UX01;
---function "xnor" (l : std_ulogic; r : std_ulogic) return UX01;
   function "not"  (l : std_ulogic) return UX01;
 
   --  Logical operators for vectors.
@@ -81,7 +78,6 @@ package std_logic_1164 is
   function "or"   (l, r : std_logic_vector) return std_logic_vector;
   function "nor"  (l, r : std_logic_vector) return std_logic_vector;
   function "xor"  (l, r : std_logic_vector) return std_logic_vector;
---function "xnor" (l, r : std_logic_vector) return std_logic_vector;
   function "not"  (l : std_logic_vector) return std_logic_vector;
 
   function "and"  (l, r : std_ulogic_vector) return std_ulogic_vector;
@@ -89,7 +85,6 @@ package std_logic_1164 is
   function "or"   (l, r : std_ulogic_vector) return std_ulogic_vector;
   function "nor"  (l, r : std_ulogic_vector) return std_ulogic_vector;
   function "xor"  (l, r : std_ulogic_vector) return std_ulogic_vector;
---function "xnor" (l, r : std_ulogic_vector) return std_ulogic_vector;
   function "not"  (l : std_ulogic_vector) return std_ulogic_vector;
 
   --  Conversion functions.