rol / ror gcc

rol_ror.c

inline int rol (int in, int x) {
        int res;
        __asm__ __volatile__("rol  %%eax, %%cl"  :"=a"(res) :"a"(in), "c"(x));
        return res;
}

inline int ror (int in, int x) {
        int res;
        __asm__ __volatile__("ror  %%eax, %%cl" :"=a"(res) :"a"(in), "c"(x));
        return res;
}