yosys/tests/sim/tb/tb_dffe.v

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2022-02-15 02:35:53 -06:00
`timescale 1ns/1ns
module tb_dffe();
reg clk = 0;
reg en = 0;
reg d = 0;
wire q;
dffe uut(.clk(clk),.d(d),.en(en),.q(q));
always
#(5) clk <= !clk;
initial
begin
$dumpfile("tb_dffe");
$dumpvars(0,tb_dffe);
#10
d = 1;
#10
d = 0;
#10
d = 1;
#10
d = 0;
#10
en = 1;
#10
d = 1;
#10
d = 0;
#10
d = 1;
#10
d = 0;
#10
d = 1;
#10
d = 0;
#10
$finish;
end
endmodule