=> 0x7ffef42cb037 : cmp $0xfffffffffffff000,%rax 0x7ffef42cb03d : ja 0x7ffef42cb05d 0x7ffef42cb03f : repz retq 0x7ffef42cb041 : nopl 0x0(%rax) 0x7ffef42cb048 : test %ecx,%ecx 0x7ffef42cb04a : jg 0x7ffef42cb027 0x7ffef42cb04c : mov %ecx,%eax 0x7ffef42cb04e : neg %eax 0x7ffef42cb050 : and $0x7fffffff,%ecx 0x7ffef42cb056 : mov %esi,%ecx 0x7ffef42cb058 : cmovne %eax,%ecx 0x7ffef42cb05b : jmp 0x7ffef42cb027 0x7ffef42cb05d : mov 0x389ddc(%rip),%rdx # 0x7ffef4654e40 0x7ffef42cb064 : neg %eax 0x7ffef42cb066 : mov %eax,%fs:(%rdx) 0x7ffef42cb069 : or $0xffffffffffffffff,%rax