* [[discussion]]
* <https://github.com/riscv/riscv-v-spec/blob/master/v-spec.adoc#vector-register-gather-instructions>
* <https://lists.libre-soc.org/pipermail/libre-soc-dev/2022-May/004884.html>
+* <https://bugs.libre-soc.org/show_bug.cgi?id=865> implementation in simulator
* <https://bugs.libre-soc.org/show_bug.cgi?id=213>
* <https://bugs.libre-soc.org/show_bug.cgi?id=142> specialist vector ops
out of scope for this document [[openpower/sv/3d_vector_ops]]