library ieee;
use ieee.std_logic_1164.all;
use ieee.numeric_std.all;
entity dpram2 is
port (raddr : std_logic_vector (3 downto 0);
rdat : out std_logic_vector (7 downto 0);
waddr : std_logic_vector (3 downto 0);
wdat : std_logic_vector (7 downto 0);
clk : std_logic);
end dpram2;
architecture behav of dpram2 is
begin
process (clk)
type memtype is array (15 downto 0) of std_logic_vector (7 downto 0);
variable mem : memtype;
begin
if rising_edge (clk) then
rdat <= mem (to_integer(unsigned (raddr)));
mem (to_integer(unsigned (waddr))) := wdat;
end if;
end process;
end behav;
