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diff --git a/testsuite/vests/vhdl-93/ashenden/compliant/ch_19_join-b.vhd b/testsuite/vests/vhdl-93/ashenden/compliant/ch_19_join-b.vhd
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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_19_join-b.vhd,v 1.3 2001-10-26 16:29:36 paw Exp $
+-- $Revision: 1.3 $
+--
+-- ---------------------------------------------------------------------
+
+library qsim;
+
+architecture behavior of join is
+
+begin
+
+ joiner : process
+
+ use qsim.token_fifo_adt.all;
+
+ variable source : positive range in_arc'range;
+ variable token_fifo : fifo_type := new_fifo;
+ variable current_fifo_size : natural := 0;
+ variable head_token : token_type;
+ variable number_of_tokens_joined : natural := 0;
+ type counter_array is array (positive range in_arc'range) of natural;
+ variable number_joined_from_source : counter_array := (others => 0);
+
+ use std.textio.all;
+ file info_file : text;
+ variable L : line;
+
+-- Modeltech bug mt043 workaround
+ variable in_arc_last_value : arc_vector(in_arc'range) := in_arc;
+--
+
+ procedure write_summary is
+ begin
+ write(L, string'("Summary information for join "));
+ write(L, name);
+ write(L, string'(" up to time "));
+ write(L, now, unit => time_unit);
+ writeline(info_file, L);
+ write(L, string'(" Number of tokens joined = "));
+ write(L, natural(number_of_tokens_joined));
+ writeline(info_file, L);
+ for source in in_arc'range loop
+ write(L, string'(" Number from input("));
+ write(L, source);
+ write(L, string'(") = "));
+ write(L, natural(number_joined_from_source(source)));
+ write(L, string'(" ("));
+ write(L, real(number_joined_from_source(source))
+ / real(number_of_tokens_joined),
+ digits => 4);
+ write(L, ')');
+ writeline(info_file, L);
+ end loop;
+ writeline(info_file, L);
+ end write_summary;
+
+ procedure write_trace is
+ begin
+ write(L, string'("Join "));
+ write(L, name);
+ write(L, string'(": at "));
+ write(L, now, unit => time_unit);
+ write(L, string'(" joined from input "));
+ write(L, source);
+ write(L, ' ');
+ write(L, in_arc(source).token, time_unit);
+ writeline(info_file, L);
+ end write_trace;
+
+ procedure accept_new_tokens is
+ begin
+ for index in 1 to in_arc'length loop
+-- Modeltech bug mt043 workaround
+-- if in_arc(index).transaction /= in_arc'last_value(index).transaction then
+ if in_arc(index).transaction /= in_arc_last_value(index).transaction then
+--
+ source := index;
+ insert(token_fifo, in_arc(source).token);
+ current_fifo_size := current_fifo_size + 1;
+ number_of_tokens_joined := number_of_tokens_joined + 1;
+ number_joined_from_source(source) := number_joined_from_source(source) + 1;
+ if info_detail = trace then
+ write_trace;
+ end if;
+ end if;
+ end loop;
+-- Modeltech bug mt043 workaround
+ in_arc_last_value := in_arc;
+--
+ end procedure accept_new_tokens;
+
+ begin
+ file_open(info_file, info_file_name, write_mode);
+ loop
+ wait on info_detail'transaction, in_arc;
+ if info_detail'active and info_detail = summary then
+ write_summary;
+ end if;
+ if in_arc'event then
+ accept_new_tokens;
+ while current_fifo_size > 0 loop
+ remove(token_fifo, head_token);
+ current_fifo_size := current_fifo_size - 1;
+ out_arc <= arc_type'( transaction => not out_arc.transaction'driving_value,
+ token => head_token );
+ wait for 0 fs; -- delta delay before next output token
+ if info_detail'active and info_detail = summary then
+ write_summary;
+ end if;
+ if in_arc'event then
+ accept_new_tokens;
+ end if;
+ end loop;
+ end if;
+ end loop;
+ end process joiner;
+
+end behavior;