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Merged
Created Jul 13, 2019 by Ben Avison@bavisonDeveloper

Access to IO above 4GB in physical address map

  • Overview 10
  • Commits 3
  • Changes 13

There are two parts to this: permanent and temporary mapping. Initial tests suggest these are working for me on a Pi 4, though no device drivers yet use them in anger. If anyone has chance, it would be useful to try this out on other platforms to ensure I haven't introduced any regressions (in particular, doubly-mapped IO isn't used on the Pi and so hasn't been tested).

Requires RiscOS/Sources/Programmer/HdrSrc!2 (merged)

Edited Aug 09, 2019 by Ben Avison
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Source branch: Supersections