is an optional condition code.
This is a hint instruction. It is optional whether it is implemented or not. If
it is not implemented, it executes as a
NOP. The assembler
produces a diagnostic message if the instruction executes as a
NOP on the target.
SEV causes an event to be signaled
to all cores within a multiprocessor system. If
SEV is implemented,
also be implemented.
This instruction is available in A32 and T32.