=> 0x7f0fe35aed05 : cmp $0xfffffffffffff000,%rax 0x7f0fe35aed0b : ja 0x7f0fe35aed1f 0x7f0fe35aed0d : repz retq 0x7f0fe35aed0f : nop 0x7f0fe35aed10 : test %eax,%eax 0x7f0fe35aed12 : jg 0x7f0fe35aecf5 0x7f0fe35aed14 : test $0x7fffffff,%eax 0x7f0fe35aed19 : je 0x7f0fe35aed30 0x7f0fe35aed1b : neg %eax 0x7f0fe35aed1d : jmp 0x7f0fe35aecf5 0x7f0fe35aed1f : mov 0x35927a(%rip),%rdx # 0x7f0fe3907fa0 0x7f0fe35aed26 : neg %eax 0x7f0fe35aed28 : mov %eax,%fs:(%rdx) 0x7f0fe35aed2b : or $0xffffffffffffffff,%rax 0x7f0fe35aed2f : retq 0x7f0fe35aed30 : mov %esi,%eax