b 9
r
echo # p/x $rdx\n
p/x $rdx
si
echo # p $rax\n
p $rax
echo # p $rdx\n
p $rdx
echo # 最初の%rdxが0xFFFFFFFFFFFFFFFF, %raxが-33, 2番目の%rdxが-9なら成功\n
quit