Paolo Teti e0504ce54a Add few ARM DSP Intrinsics (#529)
* Add few ARM DSP Intrinsics

- Signed saturating add/sub
- Saturating four 8-bit integer add/sub
- Saturating two 8-bit integer add/sub

The intent is mainly to setup the module and to add all
the rest in the future.

Listed intrinsics are available on Cortex-M too (+dsp is required
on some model except for M4).

* Arm DSP: rebase and remove portable vector types

Rebase everything on top of master since the portable vector types
have been removed.
2018-07-20 11:54:52 -05:00
..
2018-07-19 00:10:44 +02:00
2018-07-19 00:10:44 +02:00