with input select output <= 
"00" when "00000000",
"01" when "00000001",
"00" when "00000010",
"01" when "00000011",
"00" when "00000100",
"01" when "00000101",
"00" when "00000110",
"01" when "00000111",
"00" when "00001000",
"01" when "00001001",
.
.
.
"11" when "11110011",
"10" when "11110100",
"11" when "11110101",
"10" when "11110110",
"11" when "11110111",
"10" when "11111000",
"11" when "11111001",
"10" when "11111010",
"11" when "11111011",
"10" when "11111100",
"11" when "11111101",
"10" when "11111110",
"11" when "11111111",
"--" when OTHERS;