2-input multiplexer with 4-bit signals

Design a 2-input multiplexer in which the inputs are 4-bit wide. The selection signal is called sel, whereas the two inputs are called in0 and in1. The output will be in0 when sel=0 and in1 when sel=1.

Specification

module mux4(in0, in1, sel, out);
    input [3:0] in0, in1;
    input sel;
    output [3:0] out;

Input

in0 and in1 are the two 4-bit inputs.
sel is the selector.

Output

out is the 4-bit output.

Problem information

Author: Javier de San Pedro Martín and Marta Miralpeix Anglerill

Generation: 2026-02-03T12:17:11.018Z