[libre-riscv-dev] [Bug 173] dynamic partitioned "shift"

[bugzilla-daemon at libre-riscv.org]

http://bugs.libre-riscv.org/show_bug.cgi?id=173

--- Comment #1 from Luke Kenneth Casson Leighton <lkcl at lkcl.net> ---
i've started adding in some tables which make it clear what the output is
in each partition.  it turns out that we'll need *three* variants of
partitioned shift:

* full dynamic (a and b are both PartitionedSignal)
* vector-scalar (a is PartitionedSignal but b is a "global" (ordinary Signal)
* vector-const.

this last one is much more straightforward than the others.  next order
of difficulty is the vector-scalar one, and the full dynamic one is a pig.

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