dec3to8.v

// 3 to 8 decoder
module dec3to8 
     (
    output [7:0] out,
    input enb_,
    input [2:0] sel
);
    reg [7:0] out;
    always @ (enb_ or sel)
        if (enb_)
            out = 8'b11111111;
        else
            case (sel)
                3'b000: out = 8'b11111110;
                3'b001: out = 8'b11111101;
                3'b010: out = 8'b11111011;
                3'b011: out = 8'b11110111;
                3'b100: out = 8'b11101111;
                3'b101: out = 8'b11011111;
                3'b110: out = 8'b10111111;
                3'b111: out = 8'b01111111;
                default: out = 8'bx;
            endcase
endmodule