1 long f1(long a){return a&0xff000000L;}
2 long f2 (long a){return a&~0xff000000L;}
3 long f3(long a){return a&0x000000ffL;}
4 long f4(long a){return a&~0x000000ffL;}
5 long f5(long a){return a&0x0000ffffL;}
6 long f6(long a){return a&~0x0000ffffL;}
12 if (f1(a)!=0x89000000L||