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			22 lines
		
	
	
	
		
			289 B
		
	
	
	
		
			Systemverilog
		
	
	
	
	
	
			
		
		
	
	
			22 lines
		
	
	
	
		
			289 B
		
	
	
	
		
			Systemverilog
		
	
	
	
	
	
| module top(input i, output o);
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| 	A A();
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| 	B B();
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| 	assign A.i = i;
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| 	assign o = B.o;
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| 	always @* assert(o == i);
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| endmodule
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| 
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| module A;
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| 	wire i, y;
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| `ifdef FAIL
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| 	assign B.x = i;
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| `else
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| 	assign B.x = !i;
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| `endif
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| 	assign y = !B.y;
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| endmodule
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| 
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| module B;
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| 	wire x, y, o;
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| 	assign y = x, o = A.y;
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| endmodule
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