[Libre-soc-dev] adding PartitionedSignal support to nmigen's If/Switch/Case

Jacob Lifshay programmerjake at gmail.com
Tue Sep 21 08:04:21 BST 2021

On Mon, Sep 20, 2021, 19:33 Jacob Lifshay <programmerjake at gmail.com> wrote:

> On Mon, Sep 20, 2021, 18:50 Luke Kenneth Casson Leighton <lkcl at lkcl.net>
> wrote:
>> by the time the m.If/Else and m.Switch/Case statements are
>> done, the entire AST is completely devoid of all evidence of
>> If/Else, and pure IR-level Mux and IR-level case/switch is
>> all that is left.
>> therefore, by providing an over-ride mechanism whereby
>> MUX, CAT and PART may redirect to kls.__MUX__,
>> kls.__CAT__ and kls.__PART__ respectively,
> nmigen isn't where that translation logic could be hooked into, so that
> approach won't work.

I asked on nmigen's chat, and vup was nice enough to verify:



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