=> 0x7fc207520c45 : cmp $0xfffffffffffff000,%rax 0x7fc207520c4b : ja 0x7fc207520c5f 0x7fc207520c4d : repz retq 0x7fc207520c4f : nop 0x7fc207520c50 : test %eax,%eax 0x7fc207520c52 : jg 0x7fc207520c35 0x7fc207520c54 : test $0x7fffffff,%eax 0x7fc207520c59 : je 0x7fc207520c70 0x7fc207520c5b : neg %eax 0x7fc207520c5d : jmp 0x7fc207520c35 0x7fc207520c5f : mov 0x36b1b2(%rip),%rdx # 0x7fc20788be18 0x7fc207520c66 : neg %eax 0x7fc207520c68 : mov %eax,%fs:(%rdx) 0x7fc207520c6b : or $0xffffffffffffffff,%rax 0x7fc207520c6f : retq 0x7fc207520c70 : mov %esi,%eax