=> 0x7fc9a6754037 : cmp $0xfffffffffffff000,%rax 0x7fc9a675403d : ja 0x7fc9a675405d 0x7fc9a675403f : repz retq 0x7fc9a6754041 : nopl 0x0(%rax) 0x7fc9a6754048 : test %ecx,%ecx 0x7fc9a675404a : jg 0x7fc9a6754027 0x7fc9a675404c : mov %ecx,%eax 0x7fc9a675404e : neg %eax 0x7fc9a6754050 : and $0x7fffffff,%ecx 0x7fc9a6754056 : mov %esi,%ecx 0x7fc9a6754058 : cmovne %eax,%ecx 0x7fc9a675405b : jmp 0x7fc9a6754027 0x7fc9a675405d : mov 0x389ddc(%rip),%rdx # 0x7fc9a6adde40 0x7fc9a6754064 : neg %eax 0x7fc9a6754066 : mov %eax,%fs:(%rdx) 0x7fc9a6754069 : or $0xffffffffffffffff,%rax