/* Description of a D-FF. */
module dff(clk,d,q);
input clk,d; output q; always @ (posedge clk) begin q <= d & ~rst; end
endmodule
/* Description of a D-FF. */
module dff(clk,d,q);
input clk,d; output q; always @ (posedge clk) begin q <= d & ~rst; end
endmodule