This level sets the bare minimum requirements, where everything with the
exception of the `setvl` instruction may be software-emulated through
-JIT Translation or Illegal Instruction traps. SVSTATE joins MSR and PC
+JIT Translation or Illegal Instruction traps. SVSTATE, as effectively
+a Sub-Program-Counter, joins MSR and PC (CIA, NIA)
as direct peers and must be switched on any context-switch (Trap or
Exception)