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Diffstat (limited to 'libraries/ieee2008/float_pkg.vhdl')
| -rw-r--r-- | libraries/ieee2008/float_pkg.vhdl | 52 |
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 0000000..e69697a --- /dev/null +++ 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 + ); |