_primary.vhd

Xilinx的modelsim 仿真库！里面有许多库函数

library verilog;
use verilog.vl_types.all;
entity ram16x1d is
    generic(
        cds_action      : string  := "ignore";
        init            : integer := 0
    );
    port(
        dpo             : out    vl_logic;
        spo             : out    vl_logic;
        a0              : in     vl_logic;
        a1              : in     vl_logic;
        a2              : in     vl_logic;
        a3              : in     vl_logic;
        d               : in     vl_logic;
        dpra0           : in     vl_logic;
        dpra1           : in     vl_logic;
        dpra2           : in     vl_logic;
        dpra3           : in     vl_logic;
        wclk            : in     vl_logic;
        we              : in     vl_logic
    );
end ram16x1d;