Excess_3 to BCD.v

module Excess_3_to_BCD(e,b);
input [3:0]e;
output [3:0] b;
assign b[3] = (e[3]&e[2])|(e[1]&e[0]&e[3]);
assign b[2] = (~e[1]&~e[2])| (~e[2]&~e[0])|(e[0]&e[1]&e[2]);
assign b[1] = (e[1]^e[0]);
assign b[0] = (~e[0]);
endmodule