_primary.vhd

<<精通VerilogHDL IC设计核心技术实例详解>>一书的附录源代码。

library verilog;
use verilog.vl_types.all;
entity stackc is
    port(
        clk             : in     vl_logic;
        nrst            : in     vl_logic;
        push            : in     vl_logic;
        pop             : in     vl_logic;
        wptr            : out    vl_logic_vector(3 downto 0);
        rptr            : out    vl_logic_vector(3 downto 0);
        pre_empty       : out    vl_logic;
        empty           : out    vl_logic;
        pre_full        : out    vl_logic;
        full            : out    vl_logic;
        overflow        : out    vl_logic
    );
end stackc;