1 files changed, 139 insertions, 0 deletions
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
new file mode 100644
index 000000000..cef314e05
--- /dev/null
+++ b/testsuite/vests/vhdl-93/ashenden/compliant/ch_19_join-b.vhd
@@ -0,0 +1,139 @@
+
+-- 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;