- added ieee_proposed

git-svn-id: http://moon:8086/svn/vhdl/trunk@1304 cc03376c-175c-47c8-b038-4cd826a8556b

Common/sim/ieee_proposed/modelsim/math_utility_pkg_c.vhdl

@@ -0,0 +1,38 @@
+-- --------------------------------------------------------------------
+-- "math_utility_pkg" package contains types used by the both the fixed
+-- and floating point packages.
+-- This package should be compiled into "ieee_proposed" and used as follows:
+-- use ieee.std_logic_1164.all;
+-- use ieee.numeric_std.all;
+-- use ieee_proposed.math_utility.all;
+-- use ieee_proposed.fixed_pkg.all;
+-- use ieee_proposed.float_pkg.all;
+--
+--  This verison is designed to work with the VHDL-93 compilers.  Please
+--  note the "%%%" comments.  These are where we diverge from the
+--  VHDL-200X LRM.
+--
+-- --------------------------------------------------------------------
+-- Version    : $Revision: 1.1 $
+-- Date       : $Date: 2007-04-04 14:00:18-04 $
+-- --------------------------------------------------------------------
+
+package math_utility_pkg 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 math_utility_pkg;