* eeschema netlist version 1.1 (spice format) creation date: wed jun 24 12:24:33 2015 .include half_adder.sub x1 8 7 6 2 half_adder x2 5 6 4 3 half_adder * u1 8 7 5 4 1 port * u2 3 2 1 d_or a1 [3 2 ] 1 u2 * Schematic Name: d_or, NgSpice Name: d_or .model u2 d_or(fall_delay=1.0e-9 input_load=1.0e-12 rise_delay=1.0e-9 ) .ac lin 0 0Hz 0Hz * Control Statements .control run print allv > plot_data_v.txt print alli > plot_data_i.txt .endc .end