Add ieee 2008 packages.

1 files changed, 52 insertions, 0 deletions

diff --git a/libraries/ieee2008/float_pkg.vhdl b/libraries/ieee2008/float_pkg.vhdl
new file mode 100644
index 000000000..e69697acf
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+++ b/libraries/ieee2008/float_pkg.vhdl
@@ -0,0 +1,52 @@
+-- --------------------------------------------------------------------
+--
+-- Copyright © 2008 by IEEE. All rights reserved.
+--
+-- This source file is an essential part of IEEE Std 1076-2008,
+-- IEEE Standard VHDL Language Reference Manual. This source file may not be
+-- copied, sold, or included with software that is sold without written 
+-- permission from the IEEE Standards Department. This source file may be 
+-- copied for individual use between licensed users. This source file is
+-- provided on an AS IS basis. The IEEE disclaims ANY WARRANTY EXPRESS OR
+-- IMPLIED INCLUDING ANY WARRANTY OF MERCHANTABILITY AND FITNESS FOR USE
+-- FOR A PARTICULAR PURPOSE. The user of the source file shall indemnify
+-- and hold IEEE harmless from any damages or liability arising out of the
+-- use thereof.
+--
+--   Title     :  Floating-point package (Instantiated package declaration)
+--             :
+--   Library   :  This package shall be compiled into a library
+--             :  symbolically named IEEE.
+--             :
+--   Developers:  Accellera VHDL-TC and IEEE P1076 Working Group
+--             :
+--   Purpose   :  This packages defines basic binary floating point
+--             :  arithmetic functions
+--             :
+--   Note      :  This package may be modified to include additional data
+--             :  required by tools, but it must in no way change the
+--             :  external interfaces or simulation behavior of the
+--             :  description. It is permissible to add comments and/or
+--             :  attributes to the package declarations, but not to change
+--             :  or delete any original lines of the package declaration.
+--             :  The package body may be changed only in accordance with
+--             :  the terms of Clause 16 of this standard.
+--             :
+-- --------------------------------------------------------------------
+-- $Revision: 1220 $
+-- $Date: 2008-04-10 17:16:09 +0930 (Thu, 10 Apr 2008) $
+-- --------------------------------------------------------------------
+
+library ieee;
+
+package float_pkg is new IEEE.float_generic_pkg
+  generic map (
+    float_exponent_width => 8,    -- float32'high
+    float_fraction_width => 23,   -- -float32'low
+    float_round_style    => IEEE.fixed_float_types.round_nearest,  -- round nearest algorithm
+    float_denormalize    => true,  -- Use IEEE extended floating
+    float_check_error    => true,  -- Turn on NAN and overflow processing
+    float_guard_bits     => 3,     -- number of guard bits
+    no_warning           => false, -- show warnings
+    fixed_pkg            => IEEE.fixed_pkg
+    );