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2026-10-17 16:21:02 UTC
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gloriouscow on Nostr: But does this make sense? It kinda does. The 386 has more destinations - it added a ...

But does this make sense?

It kinda does. The 386 has more destinations - it added a bunch of debug registers, the FS and GS segments, etc. So it would need a larger destination selector.

As for bus control, the picture is similar. The 286 doesn't need the 386's DWORD-sized transfer codes, nor SPCR or LPCR. That leaves us with 32 values for bus control. Oh hey, that fits in 5 bits.