1  unsigned char a, b;
       2  
       3  void baz (void)
       4  {
       5    if (b & 0x08)
       6      {
       7        int g = 0;
       8        int c = (b & 0x01);
       9        int d = a - g - c;
      10        int e = (a & 0x0f) - (g & 0x0f);
      11        int f = (a & 0xf0) - (g & 0xf0);
      12        int h = (a & 0x0f) - (g & 0x0f);
      13  
      14        if ((a ^ g) & (a ^ d) & 0x80) b |= 0x40;
      15        if ((d & 0xff00) == 0) b |= 0x01;
      16        if (!((a - h - c) & 0xff)) b |= 0x02;
      17        if ((a - g - c) & 0x80) b |= 0x80;
      18        a = (e & 0x0f) | (f & 0xf0);
      19      }
      20  }