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Diffstat (limited to 'testsuite/vests/vhdl-ams/ashenden/compliant/components-and-configs/reg-1.vhd')
-rw-r--r-- | testsuite/vests/vhdl-ams/ashenden/compliant/components-and-configs/reg-1.vhd | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/testsuite/vests/vhdl-ams/ashenden/compliant/components-and-configs/reg-1.vhd b/testsuite/vests/vhdl-ams/ashenden/compliant/components-and-configs/reg-1.vhd new file mode 100644 index 0000000..445b888 --- /dev/null +++ b/testsuite/vests/vhdl-ams/ashenden/compliant/components-and-configs/reg-1.vhd @@ -0,0 +1,50 @@ + +-- Copyright (C) 2002 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 + +library ieee; use ieee.std_logic_1164.all; + +entity reg is + generic ( t_setup, t_hold, t_pd : delay_length; + width : positive ); + port ( clock : in std_logic; + reset_n : in std_logic := 'H'; + data_in : in std_logic_vector(0 to width - 1); + data_out : out std_logic_vector(0 to width - 1) ); +end entity reg; + + + +-- not in book + +architecture gate_level of reg is + +begin + + store : process (clock, reset_n) is + begin + if reset_n = '0' or reset_n = 'L' then + data_out <= (others => '0') after t_pd; + elsif rising_edge(clock) then + data_out <= data_in after t_pd; + end if; + end process store; + +end architecture gate_level; + +-- end not in book |