`include "ram_dual.v" module ram_dual_tb; localparam ADDRESS_BITS = 1; localparam DATA_BITS = 1; reg clock, reset, write; reg [ADDRESS_BITS-1:0] address_in, address_out; reg [DATA_BITS-1:0] data_in; wire [DATA_BITS-1:0] data_out; ram_dual #( .ADDRESS_BITS(ADDRESS_BITS), .DATA_BITS(DATA_BITS) ) top ( clock, reset, write, address_in, address_out, data_in, data_out ); initial begin $dumpfile("ram_dual_tb.vcd"); $dumpvars; /* Start. */ address_in = 0; address_out = 0; data_in = 0; clock = 0; reset = 0; write = 0; /* Reset. */ #2 reset = 1; #2 reset = 0; #2 write = 1; address_out = 1; address_in = 0; data_in = 1; #2 write = 0; address_out = 0; address_in = 1; data_in = 1; #2 $finish; end always begin #1 clock = ~clock; end endmodule