hexa counter to hexa display

states: 0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F bin: 4bits --> 16 combinations DEC/ BIN/ HEX/ 0 0000 0 1 0001 1 2 0010 2 3 0011 3 4 0100 4 5 0101 5 6 0110 6 7 0111 7 8 1000 8 9 1001 9 10 1010 A 11 1011 B 12 1100 C 13 1101 D 14 1110 E 15 1111 F