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-- This -*- vhdl -*- file is part of GHDL.
-- IEEE 1076.3 compliant numeric std package.
-- Copyright (C) 2015-2021 Tristan Gingold
--
-- This program 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 of the License, or
-- (at your option) any later version.
--
-- This program 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 this program. If not, see <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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