On Sun, 16 Apr 2023 15:42:14 +0000, Farley, Peter wrote: >A question out of pure curiosity: In the z16 version of PoOP (SA22-7832-13) >there is mention in the "Summary of Changes in Fourteenth Edition" section of >this enhancement: > >Mapped-I/O-addressing facility [PCI ONLY] > >I can find no other reference to such a facility anywhere in that document. > >Does anyone know what that item refers to? > Could it be Single-level store <https://en.wikipedia.org/wiki/Single-level_store>? You can do a lot with 64-bit addressing.
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