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The article's talking about running 32-bit applications in emulation, with a 64-bit native kernel. > Then a rewrite of RISC OS for 64-bit ARM chips would requi
by wk_end 6y ago
The article's talking about running 32-bit applications in emulation, with a 64-bit native kernel.
> Then a rewrite of RISC OS for 64-bit ARM chips would require a 32-bit emulation layer for old apps to run -- and very slowly at that, when ARM chips no longer execute 32-bit code directly. A software emulation of 32-bit ARM would be needed, with perhaps a 10x performance drop.
- Teongot 6y agoThe cost of simulating 32-bit ARM on 64-bit ARM is nothing like 10x if you try hard enough https://www.research.manchester.ac.uk/portal/files/56078084/pldi_16.pdf https://www.research.manchester.ac.uk/portal/files/56078084/...
- lproven 6y agoSo I have been informed, in some detail, over on Lobste.rs. I am glad to hear it. I like this little OS and I want to see it survive!