=> 0x7f45f3cd0037 : cmp $0xfffffffffffff000,%rax 0x7f45f3cd003d : ja 0x7f45f3cd005d 0x7f45f3cd003f : repz retq 0x7f45f3cd0041 : nopl 0x0(%rax) 0x7f45f3cd0048 : test %ecx,%ecx 0x7f45f3cd004a : jg 0x7f45f3cd0027 0x7f45f3cd004c : mov %ecx,%eax 0x7f45f3cd004e : neg %eax 0x7f45f3cd0050 : and $0x7fffffff,%ecx 0x7f45f3cd0056 : mov %esi,%ecx 0x7f45f3cd0058 : cmovne %eax,%ecx 0x7f45f3cd005b : jmp 0x7f45f3cd0027 0x7f45f3cd005d : mov 0x389ddc(%rip),%rdx # 0x7f45f4059e40 0x7f45f3cd0064 : neg %eax 0x7f45f3cd0066 : mov %eax,%fs:(%rdx) 0x7f45f3cd0069 : or $0xffffffffffffffff,%rax