[libre-riscv-dev] [Bug 132] SIMD-like nmigen signal for partitioning

[bugzilla-daemon at libre-riscv.org]

http://bugs.libre-riscv.org/show_bug.cgi?id=132

--- Comment #33 from Jacob Lifshay <programmerjake at gmail.com> ---
(In reply to Jacob Lifshay from comment #32)
> (In reply to Luke Kenneth Casson Leighton from comment #31)
> > 
> > can you think of a way to gain some confidence that this is going to work,
> > *before* going ahead with the whole lot?
> 
> try it on divcore, which is relatively small but is complex enough to fully
> utilise the operations we will need on partitioned signals.
> 
> the divcore tests can be adapted to work with partitioned signals relatively
> simply.

maybe copy divcore and divcore tests to a new directory and work on it there?

that way we can keep the working code separate in case we fail the first time.

if making a PartitionedValue class doesn't work, we could fall back on the
method used in the partitioned multiplier -- write the code explicitly and just
accept that it will be complex.

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