=> 0x7f1f81beca75 : cmp $0xfffffffffffff000,%rax 0x7f1f81beca7b : ja 0x7f1f81beca92 0x7f1f81beca7d : repz retq 0x7f1f81beca7f : nop 0x7f1f81beca80 : test %eax,%eax 0x7f1f81beca82 : jg 0x7f1f81beca65 0x7f1f81beca84 : test $0x7fffffff,%eax 0x7f1f81beca89 : jne 0x7f1f81becaa2 0x7f1f81beca8b : mov %esi,%eax 0x7f1f81beca8d : nopl (%rax) 0x7f1f81beca90 : jmp 0x7f1f81beca65 0x7f1f81beca92 : mov 0x3484ff(%rip),%rdx # 0x7f1f81f34f98 0x7f1f81beca99 : neg %eax 0x7f1f81beca9b : mov %eax,%fs:(%rdx) 0x7f1f81beca9e : or $0xffffffffffffffff,%eax 0x7f1f81becaa1 : retq