=> 0x7ff4a6291390 : movzbl 0xe8(%rdi),%eax 0x7ff4a6291397 : shr $0x2,%al 0x7ff4a629139a : and $0x1,%eax 0x7ff4a629139d : retq 0x7ff4a629139e: xchg %ax,%ax 0x7ff4a62913a0 : push %rbp 0x7ff4a62913a1 : mov %rsi,%rbp 0x7ff4a62913a4 : push %rbx 0x7ff4a62913a5 : mov %rdi,%rbx 0x7ff4a62913a8 : sub $0x18,%rsp 0x7ff4a62913ac : movq $0x0,0x8(%rsp) 0x7ff4a62913b5 : callq 0x7ff4a628fae0 0x7ff4a62913ba : test %rbx,%rbx 0x7ff4a62913bd : je 0x7ff4a62913db 0x7ff4a62913bf : mov (%rbx),%rdx 0x7ff4a62913c2 : test %rdx,%rdx