[Libre-soc-dev] FFT, DCT, REMAP

Luke Kenneth Casson Leighton lkcl at lkcl.net
Tue Jun 22 18:09:10 BST 2021


damnit i misremembered the RM Mode table for LDST. *indexed* mode (RA
RB) has free space, immediate LDST does not.

have to lose one bit of the "normal" mode, drop e.g. dz or sz as
appropriate, replace it with bitreverse mode.

or, if *both* dz and sz are 1, that's taken to be bitreverse mode.



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