module decoder_2_4(
    input  [ 1:0] in,
    output [ 3:0] out
);

genvar i;
generate for (i=0; i<4; i=i+1) begin : gen_for_dec_2_4
    assign out[i] = (in == i);
end endgenerate

endmodule


module decoder_4_16(
    input  [ 3:0] in,
    output [15:0] out
);

genvar i;
generate for (i=0; i<16; i=i+1) begin : gen_for_dec_4_16
    assign out[i] = (in == i);
end endgenerate

endmodule


module decoder_5_32(
    input  [ 4:0] in,
    output [31:0] out
);

genvar i;
generate for (i=0; i<32; i=i+1) begin : gen_for_dec_5_32
    assign out[i] = (in == i);
end endgenerate

endmodule


module decoder_6_64(
    input  [ 5:0] in,
    output [63:0] out
);

genvar i;
generate for (i=0; i<64; i=i+1) begin : gen_for_dec_6_64  //bug7
    assign out[i] = (in == i);
end endgenerate

endmodule