This ( https://learn.microsoft.com/en-us/windows/arm/arm64ec-abi https://learn.microsoft.com/en-us/windows/arm/arm64ec-abi ) feels a lot like a modern rethinkin

This ( https://learn.microsoft.com/en-us/windows/arm/arm64ec-abi https://learn.microsoft.com/en-us/windows/arm/arm64ec-abi ) feels a lot like a modern rethinking of Universal Procedure Pointers (i.e., between PowerPC and the 68K emulator on Power Macintosh).