Add support for `smlad` and `smlsd`.
- `smlad`: Dual 16-bit Signed Multiply with Addition and
32-bit accumulation
- `smlsd`: Dual 16-bit Signed Multiply with Subtraction and
32-bit accumulation
* ARM DSP: Add signed halving parallel sub.
Add:
- `shsub8`: Signed halving parallel byte-wise subtraction.
- `shsub16`: Signed halving parallel halfword-wise subtraction.
* ARM DSP: Signed halving parallel additions.
- `shadd8`: Signed halving parallel byte-wise add.
- `shadd16`: Signed halving parallel halfword-wise add.
* ARM DSP: Signed Dual Multiply Add and Signed Dual Multiply Sub.
- `SMUAD`: Signed Dual Multiply Add.
- `SMUADX`: Signed Dual Multiply Add Reversed.
- `SMUSD`: Signed Dual Multiply Subtract.
- `SMUSDX`: Signed Dual Multiply Subtract Reversed.
* ARM DSP: Restrict to Cortex-A and Cortex-R
Restrict everything to Cortex-A/R till We found a better way manage
thumb* targets.
Add 'dox' to generate docs.
* ARM DSP: fix Markdown documentation
Quote '[' and ']' where are not part of the Markdown syntax.
- Quad 8-bit addition/subtraction
- Double 8-bit addition/subtraction
- Saturating Add and Subtract with Exchange and
Saturating Subtract and Add with Exchange, signed
- Select bytes based on GE bits
This patch bump the `assert_instr` limit to 22 (from 20) instead of
add a lots of exception for all DSP intrinsics.
* 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.
