instruction unless this bit is set, in which case REMAP "persists".
Reset (cleared) on use of the `setvl` instruction if used to
alter VL or MVL.
+* Pack - if set then srcstep/substep VL/SUBVL loop-ordering is inverted.
+* UnPack - if set then dststep/substep VL/SUBVL loop-ordering is inverted.
* hphint - Horizontal Parallelism Hint. Indicates that
no Hazards exist between these elements. In Vertical First Mode
hardware **MUST** perform this many elements in parallel
| 38:39 | mo0 | REMAP RT SVSHAPE0-3 |
| 40:41 | mo1 | REMAP EA SVSHAPE0-3 |
| 42:46 | SVme | REMAP enable (RA-RT) |
-| 47:t4 | rsvd | reserved |
+| 47:52 | rsvd | reserved |
+| 53 | pack | PACK (srcstrp reorder) |
+| 54 | unpack | UNPACK (dststep order) |
| 55:61 | hphint | Horizontal Hint |
| 62 | RMpst | REMAP persistence |
| 63 | vfirst | Vertical First mode |