RFC 53: Low-level I/O primitives.

[wanda-phi]

Rendered

[whitequark]

Is a deprecation period even necessary for Values as io ports? Arguably, all well-behaved code will continue to just work given that platform.request(dir='-') returns an IOPort.

After sleeping on it: we can probably do this right away. I don't think we have any uncursed way of obtaining a toplevel inout without a platform or the newly introduced undocumented ports= alternate API, do we?

Should we forbid mixing various ways of port creation?

Eventually probably, but I feel like this can be left until a later point when we improve the backend interface as a whole.

Traditional name bikeshedding.

I'm happy with IOValue/IOPort.

[wanda-phi]

Updated to make metadata per-bit.

[whitequark]

We have discussed this RFC on the 2024-03-11 Amaranth core meeting. The disposition was to merge.