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- -- -----------------------------------------------------------------
- --
- -- Copyright 2019 IEEE P1076 WG Authors
- --
- -- See the LICENSE file distributed with this work for copyright and
- -- licensing information and the AUTHORS file.
- --
- -- This file to you under the Apache License, Version 2.0 (the "License").
- -- You may obtain a copy of the License at
- --
- -- http://www.apache.org/licenses/LICENSE-2.0
- --
- -- Unless required by applicable law or agreed to in writing, software
- -- distributed under the License is distributed on an "AS IS" BASIS,
- -- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
- -- implied. See the License for the specific language governing
- -- permissions and limitations under the License.
- --
- -- Title : Fixed Point and Floating Point types package
- --
- -- Library : This package shall be compiled into a library
- -- symbolically named IEEE.
- --
- -- Developers: Accellera VHDL-TC and IEEE P1076 Working Group
- --
- -- Purpose : Definitions for use in fixed point and floating point
- -- arithmetic packages
- --
- -- 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) $
- -- --------------------------------------------------------------------
-
- package fixed_float_types is
-
- -- Types used for generics of fixed_generic_pkg
-
- type fixed_round_style_type is (fixed_round, fixed_truncate);
-
- type fixed_overflow_style_type is (fixed_saturate, fixed_wrap);
-
- -- Type used for generics of float_generic_pkg
-
- -- These are the same as the C FE_TONEAREST, FE_UPWARD, FE_DOWNWARD,
- -- and FE_TOWARDZERO floating point rounding macros.
-
- type round_type is (round_nearest, -- Default, nearest LSB '0'
- round_inf, -- Round toward positive infinity
- round_neginf, -- Round toward negative infinity
- round_zero); -- Round toward zero (truncate)
-
- end package fixed_float_types;
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