UNIA_XOR

typedef union {
        unsigned char  BYTE;
        struct {
            unsigned char a : 2;
            unsigned char b : 3;
            unsigned char c : 3;
        }bits;
    }un_X;

    un_X x;

    x.BYTE = 0xAF; // 175(dec)
    ///UNIE
    // a.bits.b = a.bits.a ^ 3;
    //a.bits.c = a.bits.a^3;
    bitset<8> wynik(x.BYTE);
    cout << wynik<<endl;
    unsigned char wynik2;
    _asm {
        mov al, x.bits
        and al,0x03
        xor al,0x03
        mov bl,al
        shl al,3
        and al,0x18
        shl bl,5
        and bl,0x60
        or al,bl
        or x.bits,al
        mov wynik2,al
    }
    bitset<8> eldo(wynik2);
    cout << eldo<< endl;


    printf("BYTE: %d\n x.bits.a: %d\n x.bits.b: %d\n x.bits.c: %d\n", x.BYTE, x.bits.a, x.bits.b, x.bits.c);