=> 0x7f61c0fb3445 : cmp $0xfffffffffffff000,%rax 0x7f61c0fb344b : ja 0x7f61c0fb345f 0x7f61c0fb344d : repz retq 0x7f61c0fb344f : nop 0x7f61c0fb3450 : test %eax,%eax 0x7f61c0fb3452 : jg 0x7f61c0fb3435 0x7f61c0fb3454 : test $0x7fffffff,%eax 0x7f61c0fb3459 : je 0x7f61c0fb3470 0x7f61c0fb345b : neg %eax 0x7f61c0fb345d : jmp 0x7f61c0fb3435 0x7f61c0fb345f : mov 0x37d9ba(%rip),%rdx # 0x7f61c1330e20 0x7f61c0fb3466 : neg %eax 0x7f61c0fb3468 : mov %eax,%fs:(%rdx) 0x7f61c0fb346b : or $0xffffffffffffffff,%rax 0x7f61c0fb346f : retq 0x7f61c0fb3470 : mov %esi,%eax