[libre-riscv-dev] [Bug 208] implement CORDIC in a general way sufficient to do transcendentals

bugzilla-daemon at libre-soc.org bugzilla-daemon at libre-soc.org
Tue May 5 15:42:02 BST 2020


--- Comment #39 from Michael Nolan <mtnolan2640 at gmail.com> ---
(In reply to Luke Kenneth Casson Leighton from comment #37)
> ah excellent!  you did a FSM-based version as well, that's superb.
> if the pipelined version turns out to be insanely gate-hungry, or
> just not that important, we can use it.

Ooof, yeah. Running synthesis on the 32 bit pipelined version (4 cordic rounds
per pipeline stage) gives somewhere around 77k gates.

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