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-- Copyright (C) 1996 Morgan Kaufmann Publishers, Inc
-- This file is part of VESTs (Vhdl tESTs).
-- VESTs 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.
-- VESTs 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 VESTs; if not, write to the Free Software Foundation,
-- Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-- ---------------------------------------------------------------------
--
-- $Id: ch_17_fg_17_14.vhd,v 1.2 2001-10-26 16:29:37 paw Exp $
-- $Revision: 1.2 $
--
-- ---------------------------------------------------------------------
-- not in book
entity test_bench is
end entity test_bench;
-- end not in book
library ieee; use ieee.std_logic_1164.all;
architecture initial_test of test_bench is
use work.stimulus_types.all;
-- . . . -- component and signal declarations
-- not in book
signal dut_signals : std_logic_vector(0 to stimulus_vector_length - 1);
-- end not in book
begin
-- . . . -- instantiate design under test
stimulus_generation : process is
use work.stimulus_element_ordered_collection_adt.all;
variable stimulus_list : ordered_collection := new_ordered_collection;
variable next_stimulus_position : position;
variable next_stimulus : stimulus_element;
variable position_is_null : boolean;
begin
insert(stimulus_list, stimulus_element'(0 ns, "0XXXXXXXXX"));
insert(stimulus_list, stimulus_element'(200 ns, "0000110110"));
insert(stimulus_list, stimulus_element'(300 ns, "10001ZZZZZ"));
insert(stimulus_list, stimulus_element'(50 ns, "1XXXXXXXXX"));
insert(stimulus_list, stimulus_element'(60 ns, "1ZZZZZZZZZ"));
-- . . .
-- not in book
insert(stimulus_list, stimulus_element'(100 ns, "----------"));
search(stimulus_list, 100 ns, next_stimulus_position);
delete(next_stimulus_position);
get_element(next_stimulus_position, next_stimulus);
-- end not in book
find_first(stimulus_list, next_stimulus_position);
loop
test_null_position(next_stimulus_position, position_is_null);
exit when position_is_null;
get_element(next_stimulus_position, next_stimulus);
wait for next_stimulus.application_time - now;
dut_signals <= next_stimulus.pattern;
advance(next_stimulus_position);
end loop;
wait;
end process stimulus_generation;
end architecture initial_test;
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