=> 0x7f83e4905445 : cmp $0xfffffffffffff000,%rax 0x7f83e490544b : ja 0x7f83e490545f 0x7f83e490544d : repz retq 0x7f83e490544f : nop 0x7f83e4905450 : test %eax,%eax 0x7f83e4905452 : jg 0x7f83e4905435 0x7f83e4905454 : test $0x7fffffff,%eax 0x7f83e4905459 : je 0x7f83e4905470 0x7f83e490545b : neg %eax 0x7f83e490545d : jmp 0x7f83e4905435 0x7f83e490545f : mov 0x37f9ba(%rip),%rdx # 0x7f83e4c84e20 0x7f83e4905466 : neg %eax 0x7f83e4905468 : mov %eax,%fs:(%rdx) 0x7f83e490546b : or $0xffffffffffffffff,%rax 0x7f83e490546f : retq 0x7f83e4905470 : mov %esi,%eax