module dcalc_multidriver_test (clk,
    in1,
    in2,
    in3,
    in4,
    sel,
    out1,
    out2,
    out3);
 input clk;
 input in1;
 input in2;
 input in3;
 input in4;
 input sel;
 output out1;
 output out2;
 output out3;

 wire n1;
 wire n2;
 wire n3;
 wire n4;
 wire n5;
 wire n6;
 wire n7;
 wire n8;

 AND2_X1 and1 (.A1(n4),
    .A2(in3),
    .ZN(n5));
 BUF_X1 buf1 (.A(in1),
    .Z(n1));
 BUF_X2 buf2 (.A(n2),
    .Z(n3));
 BUF_X4 buf3 (.A(in2),
    .Z(n4));
 BUF_X1 buf_out (.A(n6),
    .Z(out3));
 INV_X1 inv1 (.A(n1),
    .ZN(n2));
 NAND2_X1 nand1 (.A1(n6),
    .A2(sel),
    .ZN(n7));
 NOR2_X1 nor1 (.A1(n6),
    .A2(in4),
    .ZN(n8));
 OR2_X1 or1 (.A1(n3),
    .A2(n5),
    .ZN(n6));
 DFF_X1 reg1 (.D(n7),
    .CK(clk),
    .Q(out1));
 DFF_X1 reg2 (.D(n8),
    .CK(clk),
    .Q(out2));
endmodule