[libre-riscv-dev] [Bug 132] SIMD-like nmigen signal for partitioning
bugzilla-daemon at libre-riscv.org
bugzilla-daemon at libre-riscv.org
Wed Aug 14 22:17:13 BST 2019
http://bugs.libre-riscv.org/show_bug.cgi?id=132
--- Comment #12 from Luke Kenneth Casson Leighton <lkcl at lkcl.net> ---
(In reply to Jacob Lifshay from comment #11)
> >
> > If the code is not doing single cycle results we cannot use it.
>
> yes we can, we just need to tell the pipeline API "this takes 3 stages
> instead of one, so insert extra registers on the control signals"
Which still does not take care of cancellation.
The multiplier code will now need to implement cancellation, which is a global
mask (not a register-propagated signal).
Have a look at MaskCancellable.
The predicate mask (which is register based) and the stop mask (which is global
per pipe) are opaque to the (combinatorial) Stage API.
--
You are receiving this mail because:
You are on the CC list for the bug.
More information about the libre-riscv-dev
mailing list