[libre-riscv-dev] [Bug 324] create POWER9 DIV pipeline

bugzilla-daemon at libre-soc.org bugzilla-daemon at libre-soc.org
Thu May 28 11:03:53 BST 2020


--- Comment #7 from Luke Kenneth Casson Leighton <lkcl at lkcl.net> ---
(In reply to Jacob Lifshay from comment #6)
> I added a Rust model for the div and rem instructions as well as converted
> the output format to JSON since that's waay easier to ingest than the custom
> output format I had before.


> This should make it easier to copy the behavior of POWER9 in the nmigen div
> pipeline.

ah fantastic.  yes, looking at microwatt, the synthesis of all the various
options is quite obtuse (and brilliant).

i've found it is essential to have some form of guide in a familiar language.
it's really useful that these are also binary-executable on native POWER9
as well as really clear documented actual implementations.

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