16:20 <xlg> hi I am new to amaranth. How to create a signal with the shape of an interface? I found Record as a promising solution but it was removed in the latest versions.

16:25 <xlg> by interface i mean wiring.Signature

19:24 <zyp[m]> an interface is not a single signal, but a collection of signals

19:28 <zyp[m]> you can call signature.create() to create an interface, but in practice you just mostly let the Component constructor do it for you

19:32 <xlg> how do I do then if I need to copy the data in the interface to registers? For now, I recreate the same layout of the interface as StructLayout then create a signal with that and copy the members one by one from the interface. This is tedious, error prone, difficult to refactor, etc

19:32 <zyp[m]> you might want a struct, not an interface

19:33 <zyp[m]> ref. https://amaranth-lang.org/docs/amaranth/latest/stdlib/data.html

19:43 <xlg> oh, if a group of fields are the same direction in the interface, I can create a struct for them, that seems to work. I think my fault was to not use struct because I was mixing in/out signals when grouping signals into struct, and I got confused and decided to do all the interface with signature.

19:43 <xlg> thank you

19:45 <zyp[m]> the reason Record was deprecated was that it tried doing two different things, so it was replaced with two different mechanisms for respectively dividing a signal into subfields and making a collection of signals with directions

19:48 <xlg> it is starting to make sense now

21:39 <_whitenotifier-a> [amaranth] AlanVek opened issue #1628: Reduce time in combinational cycle check by skipping duplicated checks - https://github.com/amaranth-lang/amaranth/issues/1628

22:39 <_whitenotifier-a> [amaranth] agrif commented on pull request #1590: sim: call `.aclose()` on `TickTrigger` in `.until()` and `.repeat()` - https://github.com/amaranth-lang/amaranth/pull/1590#issuecomment-3272498665