[Libre-soc-dev] [RFC] REMAP, SHAPE, complex (full) FFT
Luke Kenneth Casson Leighton
lkcl at lkcl.net
Mon Jul 19 14:35:57 BST 2021
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.
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