[libre-riscv-dev] SV branch operation

[Jacob Lifshay]

Good.

On Tue, Oct 9, 2018 at 11:41 AM Luke Kenneth Casson Leighton <lkcl at lkcl.net>
wrote:

> ok that's working with a preliminary unit test that sets up 2
> predicated registers, does a vector-compare, and if all are true it
> will branch.  results are recorded in *rs2*'s predication (if one
> exists).
>
> the unit tests for this one need a lot more entries, i modified the
> existing test to check by hand that various combinations of input
> worked, needs to be a bit more formal than that, in principle it's
> good.
>
> i think the next main thing will be compressed branch, then, really,
> that's the majority of the work done: it'll just be about the
> corner-cases, check that zeroing works, check that vectors
> specifically of length 1 work: really it's about the unit tests,
> there.
>
> the next *really* major task would be to add in support for
> non-default element widths.  separate message about that.
>
> l.
>
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