After spending an appreciable amount of time working with the Kestrel-3's components in a many-repo configuration (e.g., one for CGIA, one for the CPU, and so forth), I feel that juggling all these different components is more trouble than they're worth.

For this reason, I've decided to (over time) bring all these different components back under one repository. This includes:

• All Kestrel-2 components. This means I'll be discarding the GitHub kestrel2 repository once I bring it back under the mainline kestrel repository.
• The MGIA and GPIA are already in mainline project; but enhancements, such as CGIA, GPIA-2, and my up-coming SIA, currently exist either in ad-hoc locations or in separate repositories.
• The complete KCP53000 family of cores.

While this negatively impacts anyone trying to use open source hardware package managers like FuseSoC, it will make things significantly easier for me as a maintainer, and I think, probably for anyone wishing to contribute back to the project at a later time. If there's enough pressure to repackage components of the Kestrel via FuseSoC or similar tooling, I think the time is well-spent to make these tools mono-repo-aware, rather than having to cater to them.

As a consequence of this, I think the directory layout of the repository will necessarily have to change as well. Cores needn't be tied to specific Kestrel versions, for example, so the S16X4A or MGIA can be reused in other contexts.

I will probably get around to this in the next couple of days, or as I need various cores.