jens
c229af0f71
git-svn-id: http://moon:8086/svn/vhdl/trunk@1304 cc03376c-175c-47c8-b038-4cd826a8556b
39 lines
1.5 KiB
VHDL
39 lines
1.5 KiB
VHDL
-- --------------------------------------------------------------------
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-- "math_utility_pkg" package contains types used by the both the fixed
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-- and floating point packages.
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-- This package should be compiled into "ieee_proposed" and used as follows:
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-- use ieee.std_logic_1164.all;
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-- use ieee.numeric_std.all;
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-- use ieee_proposed.math_utility.all;
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-- use ieee_proposed.fixed_pkg.all;
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-- use ieee_proposed.float_pkg.all;
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--
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-- This verison is designed to work with the VHDL-93 compilers. Please
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-- note the "%%%" comments. These are where we diverge from the
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-- VHDL-200X LRM.
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--
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-- --------------------------------------------------------------------
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-- Version : $Revision: 1.1 $
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-- Date : $Date: 2007-04-04 14:00:18-04 $
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-- --------------------------------------------------------------------
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package math_utility_pkg is
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-- Types used for generics of fixed_generic_pkg
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type fixed_round_style_type is (fixed_round, fixed_truncate);
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type fixed_overflow_style_type is (fixed_saturate, fixed_wrap);
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-- Type used for generics of float_generic_pkg
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-- These are the same as the C FE_TONEAREST, FE_UPWARD, FE_DOWNWARD,
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-- and FE_TOWARDZERO floating point rounding macros.
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type round_type is (round_nearest, -- Default, nearest LSB '0'
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round_inf, -- Round toward positive infinity
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round_neginf, -- Round toward negative infinity
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round_zero); -- Round toward zero (truncate)
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end package math_utility_pkg;
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