openpower/sv/po9_encoding/discussion.mdwn

   1 # alternative 32-64 encoding
   2
   3 | 0-5 | 7 | 8-31      | 6 | 32|33-63|Description                        |
   4 |-----|---|-------|---|-----|-----------------------------------|
   5 | PO9 | x | xxxx  | 0 |  0 | xxxx|  `RESERVED2` (57-bit) |
   6 | PO9 | 0 | !zero | 0 |  1 | DWd | SVP64Single:EXT232-263, or `RESERVED3` |
   7 | PO9 | 0 | 0000  | 0 |  1 | DWd | Scalar EXT232-263               |
   8 | PO9 | 1 | nnnn  | 0 |  1 | DWd | SVP64:EXT232-263     |
   9 | PO9 | 0 | 0000  | 1 |  x | xxxx| `RESERVED1` (32-bit) |
  10 | PO9 | 0 | !zero | 1 |  n | DWd | SVP64Single:EXT000-063 or `RESERVED4` |
  11 | PO9 | 1 | nnnn  | 1 |  n | DWd | SVP64:EXT000-063       |