* Subcircuit 2bitmul .subckt 2bitmul net-_u1-pad1_ net-_u1-pad2_ net-_u1-pad3_ net-_u1-pad4_ net-_u1-pad5_ net-_u1-pad6_ net-_u1-pad7_ net-_u1-pad8_ * c:\esim\esim\src\subcircuitlibrary\2bitmul\2bitmul.cir .include half_adder.sub * u5 net-_u1-pad1_ net-_u1-pad3_ net-_u1-pad5_ d_and * u4 net-_u1-pad2_ net-_u1-pad3_ net-_u4-pad3_ d_and * u3 net-_u1-pad1_ net-_u1-pad4_ net-_u3-pad3_ d_and * u2 net-_u1-pad2_ net-_u1-pad4_ net-_u2-pad3_ d_and x2 net-_u4-pad3_ net-_u3-pad3_ net-_u1-pad6_ net-_x1-pad1_ half_adder x1 net-_x1-pad1_ net-_u2-pad3_ net-_u1-pad7_ net-_u1-pad8_ half_adder a1 [net-_u1-pad1_ net-_u1-pad3_ ] net-_u1-pad5_ u5 a2 [net-_u1-pad2_ net-_u1-pad3_ ] net-_u4-pad3_ u4 a3 [net-_u1-pad1_ net-_u1-pad4_ ] net-_u3-pad3_ u3 a4 [net-_u1-pad2_ net-_u1-pad4_ ] net-_u2-pad3_ u2 * Schematic Name: d_and, NgSpice Name: d_and .model u5 d_and(fall_delay=1.0e-9 input_load=1.0e-12 rise_delay=1.0e-9 ) * Schematic Name: d_and, NgSpice Name: d_and .model u4 d_and(fall_delay=1.0e-9 input_load=1.0e-12 rise_delay=1.0e-9 ) * Schematic Name: d_and, NgSpice Name: d_and .model u3 d_and(fall_delay=1.0e-9 input_load=1.0e-12 rise_delay=1.0e-9 ) * Schematic Name: d_and, NgSpice Name: d_and .model u2 d_and(fall_delay=1.0e-9 input_load=1.0e-12 rise_delay=1.0e-9 ) * Control Statements .ends 2bitmul