openpower/sv/rfc/ls012.mdwn

   1 # External RFC ls012: Discuss priorities of Libre-SOC Scalar(Vector) ops
   2
   3 * <https://git.openpower.foundation/isa/PowerISA/issues/121>
   4
   5 The purpose of this RFC is to give a full list of the upcoming Scalar
   6 opcodes developed by Libre-SOC, formally agree a priority order, which
   7 ones should be EXT022 Sandbox, and for IBM to get a clear picture of
   8 the Opcode Allocation needs. Worth bearing in mind that every "Defined
   9 Word" may or may not be Vectoriseable, but that every "Defined Word"
  10 should have merits on its own not just when Vectorised.  An example
  11 of a borderline Vectoriseable Defined Word is `mv.swizzle` which
  12 only really becomes high-priority for Vector GPU and HPC Workloads,
  13 but has less merit as a Scalar-only operation.
  14
  15