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-- This -*- vhdl -*- file is part of GHDL.
-- IEEE 1076.3 compliant numeric std package.
-- Copyright (C) 2015 Tristan Gingold
--
-- GHDL is free software; you can redistribute it and/or modify it under
-- the terms of the GNU General Public License as published by the Free
-- Software Foundation; either version 2, or (at your option) any later
-- version.
--
-- GHDL is distributed in the hope that it will be useful, but WITHOUT ANY
-- WARRANTY; without even the implied warranty of MERCHANTABILITY or
-- FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
-- for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with GCC; see the file COPYING2. If not see
-- <http://www.gnu.org/licenses/>.
library IEEE;
use IEEE.STD_LOGIC_1164.all;
package NUMERIC_STD is
type UNSIGNED is array (natural range <>) of STD_LOGIC;
type SIGNED is array (natural range <>) of STD_LOGIC;
function TO_01 (S : SIGNED; XMAP : STD_LOGIC := '0') return SIGNED;
function TO_01 (S : UNSIGNED; XMAP : STD_LOGIC := '0') return UNSIGNED;
-- Convert 'H' and '1' to '1', 'L' and '0' to '0'.
-- If any other value is present, return (others => XMAP)
-- Issue a warning in that case, and if S is a null array.
-- Result index range is S'Length - 1 downto 0.
function std_match (l, r : std_ulogic) return boolean;
function std_match (l, r : std_ulogic_vector) return boolean;
function std_match (l, r : std_logic_vector) return boolean;
function std_match (l, r : UNSIGNED) return boolean;
function std_match (l, r : SIGNED) return boolean;
-- Return True iff L and R matches.
@COMMON
end NUMERIC_STD;
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