- <https://bugs.libre-soc.org/show_bug.cgi?id=663> implement SVP64 element-width overrides
- <https://bugs.libre-soc.org/show_bug.cgi?id=671> convert spec pseudocode to use XLEN width
+- <https://bugs.libre-soc.org/show_bug.cgi?id=723> implement standalone extsb/extsh/extsw tests
## Done not yet submitted