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Diffstat (limited to 'testsuite/vests/vhdl-93/ashenden/compliant/ch_11_ch_11_02.vhd')
-rw-r--r-- | testsuite/vests/vhdl-93/ashenden/compliant/ch_11_ch_11_02.vhd | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/testsuite/vests/vhdl-93/ashenden/compliant/ch_11_ch_11_02.vhd b/testsuite/vests/vhdl-93/ashenden/compliant/ch_11_ch_11_02.vhd new file mode 100644 index 000000000..9f4b2e771 --- /dev/null +++ b/testsuite/vests/vhdl-93/ashenden/compliant/ch_11_ch_11_02.vhd @@ -0,0 +1,58 @@ + +-- 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_11_ch_11_02.vhd,v 1.1.1.1 2001-08-22 18:20:48 paw Exp $ +-- $Revision: 1.1.1.1 $ +-- +-- --------------------------------------------------------------------- + +package ch_11_02 is + + -- code from book + + type std_ulogic is ('U', 'X', '0', '1', 'Z', 'W', 'L', 'H', '-'); + + type std_ulogic_vector is array ( natural range <> ) of std_ulogic; + + function resolved ( s : std_ulogic_vector ) return std_ulogic; + + subtype std_logic is resolved std_ulogic; + + type std_logic_vector is array ( natural range <>) of std_logic; + + subtype X01 is resolved std_ulogic range 'X' to '1'; -- ('X','0','1') + subtype X01Z is resolved std_ulogic range 'X' to 'Z'; -- ('X','0','1','Z') + subtype UX01 is resolved std_ulogic range 'U' to '1'; -- ('U','X','0','1') + subtype UX01Z is resolved std_ulogic range 'U' to 'Z'; -- ('U','X','0','1','Z') + + -- end code from book + +end package ch_11_02; + + + +package body ch_11_02 is + + function resolved ( s : std_ulogic_vector ) return std_ulogic is + begin + end function resolved; + +end package body ch_11_02; |