Commit graph

6 commits

Author SHA1 Message Date
anonymous
6afa99d7a1
GNU 4.6 (consequently Xilinx 2019.1) is finally supported
- if GNU version is less than 6.2:
    * Catch2 is disabled, a custom unit test is used instead,
    * Constexpr keyword is largely removed and less used (performance
      loss),
    * Only ML Cordic/Roms are compiled and tested.
- Perfect compilation on g++ v4.6.4, should work on Vivado HLS (g++
  v4.6.3).
2022-05-13 15:53:14 +02:00
Camille Monière
4a0236baea
Just an auto-formatting correction 2022-03-14 14:19:42 +01:00
Camille Monière
f0035238bf
Correct the name and improve widely
- Fix the MC (Monte-Carlo) to the proper algoritm name, ML (maximum
  likelyhood) and remove HalfPi since the use of divider allow to
  theoretically support any pi / 2^k, k an integer. In reality, a too
  low rotation would require more stages than 7 but it is for futur
  improvements.
- Make use of `divider` template to provide rotation grain finer than pi
  / 2. Validated (unit-tested) with pi / 4 with the same margins than pi
  / 2 (2% of error with floating scaling, 3% with fixed scaling).
- Fix rom size which now use N_STAGES+1 bits instead of 8 regardless of
  N_STAGES. Simplify the cordic method implementation, which
  unexpectedly (and fortunately) improved its performance.
2022-03-14 14:07:10 +01:00
Camille Monière
5bc9c3eeb1
Big update, that compiles with Xilinx GCC 6.2
- Commit title implies possible Xilinx Vivado HLS 2019.1 support, thus support
  for e.g. all USRP Series 3 from Ettus.
- Add a new CORDIC version, Rom based and meta-programmed via CMake
  features, to be even compiled with earlier GCC (not quite tested, but
  by changing constexpr to const and using gcc 4.6 -sdt=c++0x, it
  worked).
- Class name modified, to be more explicit.
2022-02-18 21:33:59 +01:00
Camille Monière
9b83926968
Fix for GCC 9.4 support, formatting, and license addition. 2022-02-17 20:22:12 +01:00
Camille Monière
f2a7c0c886
Working AP template cordic 2022-02-11 18:17:13 +01:00