=> 0x7ff8a7774445 : cmp $0xfffffffffffff000,%rax 0x7ff8a777444b : ja 0x7ff8a777445f 0x7ff8a777444d : repz retq 0x7ff8a777444f : nop 0x7ff8a7774450 : test %eax,%eax 0x7ff8a7774452 : jg 0x7ff8a7774435 0x7ff8a7774454 : test $0x7fffffff,%eax 0x7ff8a7774459 : je 0x7ff8a7774470 0x7ff8a777445b : neg %eax 0x7ff8a777445d : jmp 0x7ff8a7774435 0x7ff8a777445f : mov 0x37f9ba(%rip),%rdx # 0x7ff8a7af3e20 0x7ff8a7774466 : neg %eax 0x7ff8a7774468 : mov %eax,%fs:(%rdx) 0x7ff8a777446b : or $0xffffffffffffffff,%rax 0x7ff8a777446f : retq 0x7ff8a7774470 : mov %esi,%eax