PPT Slide

module mux4( z, Select, in0, in1, in2, in3);

input [1:0] Select;

input in0, in1, in2, in3;

output z;

reg z;

always @(Select or in0 or in1 or in2 or in3)

case (Select)

2'b00: z = in0;

2'b01: z = in1;

2'b10: z = in2;

2'b11: z = in3;

default: z = 1'bx;

endcase

endmodule

Note the multi-bit input

2-bit value

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