=> 0x7ff68974f812:	cmp    0x80(%rdi),%rdi
   0x7ff68974f819:	sete   %al
   0x7ff68974f81c:	retq   
   0x7ff68974f81d:	nopl   (%rax)
   0x7ff68974f820:	push   %r13
   0x7ff68974f822:	push   %r12
   0x7ff68974f824:	mov    %rsi,%r12
   0x7ff68974f827:	push   %rbp
   0x7ff68974f828:	push   %rbx
   0x7ff68974f829:	sub    $0x8,%rsp
   0x7ff68974f82d:	test   %rdi,%rdi
   0x7ff68974f830:	je     0x7ff68974f8ce
   0x7ff68974f836:	mov    0x48(%rdi),%rbx
   0x7ff68974f83a:	lea    0x48(%rdi),%r13
   0x7ff68974f83e:	test   %rbx,%rbx
   0x7ff68974f841:	jne    0x7ff68974f850