1 unsigned short code = 0x0000;
2 unsigned short  low = 0x4000;
3 unsigned short high = 0xb000;
4 
main(void)5 int main (void)
6 {
7   if (
8          (high & 0x8000) != (low & 0x8000)
9       && ( low & 0x4000) == 0x4000
10       && (high & 0x4000) == 0
11       )
12     {
13       code ^= 0x4000;
14       low  |= 0x4000;
15     }
16 
17   exit (0);
18 }
19