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Diffstat (limited to 'testsuite/vests/vhdl-93/ashenden/compliant/ch_07_ch_07_03.vhd')
-rw-r--r-- | testsuite/vests/vhdl-93/ashenden/compliant/ch_07_ch_07_03.vhd | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/testsuite/vests/vhdl-93/ashenden/compliant/ch_07_ch_07_03.vhd b/testsuite/vests/vhdl-93/ashenden/compliant/ch_07_ch_07_03.vhd new file mode 100644 index 000000000..8cc3aa22b --- /dev/null +++ b/testsuite/vests/vhdl-93/ashenden/compliant/ch_07_ch_07_03.vhd @@ -0,0 +1,70 @@ + +-- 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_07_ch_07_03.vhd,v 1.3 2001-10-26 16:29:34 paw Exp $ +-- $Revision: 1.3 $ +-- +-- --------------------------------------------------------------------- + +entity ch_07_03 is +end entity ch_07_03; + +library bv_utilities; +use bv_utilities.bv_arithmetic.all; + +architecture test of ch_07_03 is + + constant T_delay_adder : delay_length := 10 ns; + + -- code from book: + + function bv_add ( bv1, bv2 : in bit_vector ) return bit_vector is + begin + -- . . . + -- not in book + return bv1 + bv2; + -- end not in book + end function bv_add; + + signal source1, source2, sum : bit_vector(0 to 31); + + -- end of code from book + +begin + + -- code from book: + + adder : sum <= bv_add(source1, source2) after T_delay_adder; + + -- end of code from book + + stimulus : process is + begin + wait for 50 ns; + source1 <= X"00000002"; source2 <= X"00000003"; wait for 50 ns; + source2 <= X"FFFFFFF0"; wait for 50 ns; + source1 <= X"00000010"; wait for 50 ns; + + wait; + end process stimulus; + + +end architecture test; |