[Libre-soc-dev] [RFC] REMAP, SHAPE, complex (full) FFT

[Luke Kenneth Casson Leighton]

i think it might be possible, rather than swap the data, to swap the
redirection indices pointing *to* the data. (!!)

the next iteration round the loop would use the exact same
top-half-order-reversed data but without actually needing to move it.

of course this means that the data will be in the wrong final order
but that's what the pre-preparatory LD phase is for.

l.