Stairwell X89209

An open stairwell has four floors amd one switch per floor to control the light. If all switches are off, the light is off; any single change in the position of any switch changes the state of the light. Design a circuit the controls the light based on the position of the four switches.

Specification

module stairwell(switches, light); input [3:0] switches; output light;

Input

• switches represents the state of the four switches (1 when "on" and 0 when "off").

Output

• light controls the state of the light (1 when "on" and 0 when "off").