[Libre-soc-dev] complex numbers as matrices

[Luke Kenneth Casson Leighton]

https://libre-soc.org/openpower/sv/sprs/

answer, yes.  SVSTATE of course has the subvector step.

* the main triple loop of an FFT can use srcstep and dststep hmm maybe only 2
* the complex number multiplies can use substep because there are only
4 of them, and substep can index 0-3

hmm have to think how to do the triple loop (including for DFT and DCT)

l.