Sure, here’s an example of a 2:1 multiplexer implemented using gates in SystemVerilog:
module mux_2to1_using_gates( input logic a, input logic b, input logic sel, output logic out ); assign out = (
sel & a) | (sel & b);
endmodule
In this code, we define a module called `mux_2to1_using_gates` with three input ports `a`, `b`, and `sel`, and one output port `out`. The `a` and `b` inputs are single-bit binary values to be muxed, the `sel` input is a single-bit binary value representing the select signal, and the `out` output is a single-bit binary value representing the muxed output. The `assign` statement uses the logical operators `
` and `|` to implement the muxing functionality. If `sel` is 0, the output `out` will be set to `a`. If `sel` is 1, the output `out` will be set to `b`.
For example, if the input signals `a` and `b` are both 1 and the `sel` signal is 0, the output signal `out` will be set to 1 (since `sel` is 0, and `a` is 1). If `sel` is 1, the output signal `out` will be set to 1 (since `sel` is 1, and `b` is 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 a mux with a different number of inputs by changing the number of input signals and modifying the muxing logic accordingly.