0x7f80423be05b : cmp $0xfffffffffffff000,%rax 0x7f80423be061 : ja 0x7f80423be065 0x7f80423be063 : repz retq 0x7f80423be065 : mov 0x207f14(%rip),%rdx # 0x7f80425c5f80 0x7f80423be06c : neg %eax 0x7f80423be06e : mov %eax,%fs:(%rdx) 0x7f80423be071 : or $0xffffffffffffffff,%eax 0x7f80423be074 : retq 0x7f80423be075: nop 0x7f80423be076: nop 0x7f80423be077: nop 0x7f80423be078: nop 0x7f80423be079: nop 0x7f80423be07a: nop 0x7f80423be07b: nop 0x7f80423be07c: nop