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			73 lines
		
	
	
	
		
			858 B
		
	
	
	
		
			Verilog
		
	
	
		
			Executable file
		
	
	
	
	
			
		
		
	
	
			73 lines
		
	
	
	
		
			858 B
		
	
	
	
		
			Verilog
		
	
	
		
			Executable file
		
	
	
	
	
| `timescale 1ns/1ns 
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| module tb_aldff();
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| 	reg clk = 0;
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| 	reg aload = 0;
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| 	reg [0:3] d  = 4'b0000;
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| 	reg [0:3] ad = 4'b1010;
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| 	wire [0:3] q;
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| 
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| 	aldff uut(.clk(clk),.d(d),.ad(ad),.aload(aload),.q(q));
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| 
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| 	always
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| 		#(5) clk <= !clk;
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| 
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| 	initial
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| 	begin
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| 		$dumpfile("tb_aldff");
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| 		$dumpvars(0,tb_aldff);
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| 		#10
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| 		d = 4'b1100;
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| 		#10
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| 		d = 4'b0011;
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| 		#10
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| 		d = 4'b1100;
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| 		#10
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| 		d = 4'b0011;
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| 		#10
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| 		aload = 1;
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| 		#10
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| 		d = 4'b1100;
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| 		#10
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| 		d = 4'b0011;
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| 		#10
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| 		d = 4'b1100;
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| 		#10
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| 		d = 4'b0011;
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| 		#10
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| 		aload = 0;
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| 		#10
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| 		d = 4'b1100;
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| 		#10
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| 		d = 4'b0011;
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| 		#10
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| 		d = 4'b1100;
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| 		#10
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| 		d = 4'b0011;
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| 		#10
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| 		aload = 1;
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| 		#10
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| 		d = 4'b1100;
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| 		#10
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| 		d = 4'b0011;
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| 		#10
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| 		d = 4'b1100;
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| 		#10
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| 		d = 4'b0011;
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| 		#10
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| 		d = 4'b1100;
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| 		#10
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| 		d = 4'b0011;
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| 		#10
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| 		aload = 0;
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| 		#10
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| 		d = 4'b1100;
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| 		#10
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| 		d = 4'b0011;
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| 		#10
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| 		d = 4'b1100;
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| 		#10
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| 		d = 4'b0011;
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| 		#10
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| 		$finish;
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| 	end
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| endmodule
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