0b1111 + 0b11010 = 0b101001 0b10110 + 0b101011 = 0b1000001 0b1100011 + 0b110111 = 0b10011010 0b1000101 + 0b1111 = 0b1010100 0b1001101 + 0b1000001 = 0b10001110 0b11110 + 0b11110 = 0b111100 0x2e + 0x5d = 0x8b 0x5c + 0x53 = 0xaf 0x32 + 0x32 = 0x64 0x48 + 0x29 = 0x71 0x3b + 0x47 = 0x82 0x24 + 0x17 = 0x3b Done with Karnaught maps in Dflip flop fpgas in alus