=> 0x7ff9ca340445 : cmp $0xfffffffffffff000,%rax 0x7ff9ca34044b : ja 0x7ff9ca34045f 0x7ff9ca34044d : repz retq 0x7ff9ca34044f : nop 0x7ff9ca340450 : test %eax,%eax 0x7ff9ca340452 : jg 0x7ff9ca340435 0x7ff9ca340454 : test $0x7fffffff,%eax 0x7ff9ca340459 : je 0x7ff9ca340470 0x7ff9ca34045b : neg %eax 0x7ff9ca34045d : jmp 0x7ff9ca340435 0x7ff9ca34045f : mov 0x37f9ba(%rip),%rdx # 0x7ff9ca6bfe20 0x7ff9ca340466 : neg %eax 0x7ff9ca340468 : mov %eax,%fs:(%rdx) 0x7ff9ca34046b : or $0xffffffffffffffff,%rax 0x7ff9ca34046f : retq 0x7ff9ca340470 : mov %esi,%eax