https://blog.wongcw.com/2023/04/14/%e7%be%a4%e8%8a%af%e9%96%83%e8%80%80%e7%a7%91%e6%8a%80%e9%a6%96%e7%99%bc64%e6%a0%b8risc-v%e4%b8%bb%e6%9d%bf%e9%85%8d128gb%e5%85%a7%e5%ad%98%e5%94%ae%e5%83%b99999%e5%85%83/