Import vests testsuite

1 files changed, 68 insertions, 0 deletions

diff --git a/testsuite/vests/vhdl-93/ashenden/compliant/ch_10_chkdiv.vhd b/testsuite/vests/vhdl-93/ashenden/compliant/ch_10_chkdiv.vhd
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+++ b/testsuite/vests/vhdl-93/ashenden/compliant/ch_10_chkdiv.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_10_chkdiv.vhd,v 1.3 2001-10-26 16:29:35 paw Exp $
+-- $Revision: 1.3 $
+--
+-- ---------------------------------------------------------------------
+
+entity check_div is
+end entity check_div;
+
+library bv_utilities;
+use bv_utilities.bv_arithmetic.all;
+
+architecture behav of check_div is
+
+begin
+
+  checker : process is
+
+                      variable bv_a, bv_b, bv_quotient, bv_remainder : bit_vector(3 downto 0);
+                    variable div_by_zero : boolean;
+
+  begin
+    for a in 0 to 15 loop
+      for b in 0 to 15 loop
+	bv_a := natural_to_bv(a, bv_a'length);
+        bv_b := natural_to_bv(b, bv_b'length);
+        bv_divu(bv_a, bv_b, bv_quotient, bv_remainder, div_by_zero);
+	if b = 0 then
+	  assert div_by_zero
+	    report integer'image(a) & '/' & integer'image(b)
+            & ": div_by_zero not true";
+	else
+	  assert not div_by_zero
+	    report integer'image(a) & '/' & integer'image(b)
+            & ": div_by_zero not false";
+	  assert bv_to_natural(bv_quotient) = a / b
+	    report integer'image(a) & '/' & integer'image(b)
+            & ": quotient = " & integer'image(bv_to_natural(bv_quotient));
+	  assert bv_to_natural(bv_remainder) = a rem b
+	    report integer'image(a) & '/' & integer'image(b)
+            & ": remainder = " & integer'image(bv_to_natural(bv_remainder));
+	end if;
+      end loop;
+    end loop;
+    wait;
+  end process checker;
+
+end architecture behav;