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`timescale 1ns/1ns
module tb_aldffe();
reg clk = 0;
reg aload = 0;
reg [0:3] d = 4'b0000;
reg [0:3] ad = 4'b1010;
reg en = 0;
wire [0:3] q;
aldffe uut(.clk(clk),.d(d),.ad(ad),.aload(aload),.en(en),.q(q));
always
#(5) clk <= !clk;
initial
begin
$dumpfile("tb_aldffe");
$dumpvars(0,tb_aldffe);
#10
d = 4'b1100;
#10
d = 4'b0011;
#10
d = 4'b1100;
#10
d = 4'b0011;
#10
aload = 1;
#10
d = 4'b1100;
#10
d = 4'b0011;
#10
d = 4'b1100;
#10
d = 4'b0011;
#10
aload = 0;
#10
d = 4'b1100;
#10
d = 4'b0011;
#10
d = 4'b1100;
#10
d = 4'b0011;
#10
en = 1;
aload = 1;
#10
d = 4'b1100;
#10
d = 4'b0011;
#10
d = 4'b1100;
#10
d = 4'b0011;
#10
d = 4'b1100;
#10
d = 4'b0011;
#10
aload = 0;
#10
d = 4'b1100;
#10
d = 4'b0011;
#10
d = 4'b1100;
#10
d = 4'b0011;
#10
$finish;
end
endmodule
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