* 75% of one major opcode for xpermi fmvis fishmv bmrevi mv.swizzle etc.
(see also: [idea for reducing amount of opcode space needed by around 50%](https://bugs.libre-soc.org/show_bug.cgi?id=924#c1) which is irrelevant
-to the topic at hand, and should be entirely ignored 1005 for the purposes
+to the topic at hand, and should be entirely ignored 100% for the purposes
of this discussion)
the additional requirements are: