Implement a 3-input AND gate using SystemVerilog.

Sure, here’s an example of a 3-input AND gate implemented using SystemVerilog:

module and_gate_3input(
  input logic a,
  input logic b,
  input logic c,
  output logic out
);

  assign out = a & b & c;

endmodule

In this code, we define a module called `and_gate_3input` with three input ports `a`, `b`, and `c`, and an output port `out`. The `a`, `b`, and `c` inputs are single-bit binary values, and the `out` output is a single-bit binary value that represents the result of the AND operation.

The `assign` statement assigns the output signal `out` the result of the AND operation between the three input signals `a`, `b`, and `c`.

For example, if the `a`, `b`, and `c` signals are all set to 1, the output signal `out` will be set to 1.

You can instantiate this module in your top-level design hierarchy and connect it to other modules or input/output signals as needed. Note that you can modify the code to implement an AND gate with a different number of inputs by changing the number of input ports and modifying the AND operation accordingly.