mirror of
https://github.com/steveicarus/iverilog.git
synced 2026-09-03 01:13:47 +02:00
Stephen Williams
cea237b407
By adding ivtest to the iverilog source tree, it is easier to keep the regression test synchronized with the source that is being tested. This should be especially helpful for PRs that add a new feature, and have a matching ivtest PR with the regression test for that feature.
60 lines
1.9 KiB
VHDL
60 lines
1.9 KiB
VHDL
-- Copyright (c) 2015 CERN
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-- Maciej Suminski <[email protected]>
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--
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-- This source code is free software; you can redistribute it
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-- and/or modify it in source code form under the terms of the GNU
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-- General Public License as published by the Free Software
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-- Foundation; either version 2 of the License, or (at your option)
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-- any later version.
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--
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-- This program is distributed in the hope that it will be useful,
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-- but WITHOUT ANY WARRANTY; without even the implied warranty of
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-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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-- GNU General Public License for more details.
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--
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-- You should have received a copy of the GNU General Public License
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-- along with this program; if not, write to the Free Software
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-- Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
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-- Test for constant arrays access
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library ieee;
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use ieee.std_logic_1164.all;
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use ieee.numeric_std.all;
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use work.constant_array_pkg.all;
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entity constant_array is
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port (index : in std_logic_vector(2 downto 0);
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output : out std_logic_vector(7 downto 0));
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end entity constant_array;
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architecture test of constant_array is
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type logic_array is array (integer range <>) of std_logic_vector(0 to 3);
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constant test_array : logic_array(0 to 5) :=
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(0 => "0010",
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1 => "1000",
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2 => "0100",
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3 => "0110",
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4 => "0101",
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5 => "1100");
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-- Check if constant vectors are not broken with the changes
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constant vector : std_logic_vector(5 downto 0) := "110011";
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signal test_a : unsigned(7 downto 0);
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signal test_b : std_logic_vector(3 downto 0);
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signal test_c : std_logic_vector(2 downto 0);
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signal test_d : std_logic;
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begin
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test_a <= const_array(3);
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test_b <= test_array(2);
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test_c <= vector(4 downto 2);
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test_d <= vector(5);
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process (index)
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begin
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output <= const_array(to_integer(unsigned(index)));
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end process;
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end architecture test;
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