[Libre-soc-bugs] [Bug 323] create POWER9 MUL pipeline

[bugzilla-daemon at libre-soc.org]

https://bugs.libre-soc.org/show_bug.cgi?id=323

--- Comment #4 from Luke Kenneth Casson Leighton <lkcl at lkcl.net> ---
i made a start on this, no multi stage, just to get at least something movibg
forward.

immediately found an issue with the simulator pseudocode.  mulli operands are
supposed to be signed and it alters the output considerably.

this will need alteration of the pseudocode, even to the extent of creating a
special MULS function.

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