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>AmigaOS is small but everything runs in ring 0. Not accurate. In AmigaOS, everything runs in unprivileged mode, except for some specific critical code within
by snvzz 2y ago
>AmigaOS is small but everything runs in ring 0.
Not accurate.
In AmigaOS, everything runs in unprivileged mode, except for some specific critical code within exec.library which runs in supervisor mode or interrupt mode.
What's true is that exec.library does offer a call to run code as supervisor[0], and that there's no memory protection.
0. http://amigadev.elowar.com/read/ADCD_2.1/Includes_and_Autodocs_2._guide/node0386.html http://amigadev.elowar.com/read/ADCD_2.1/Includes_and_Autodo...
- lproven 2y agoOK, I concede. :-)
- snvzz 2y agoI would suggest a few hours of open source work on Amiga stuff as penance :^)
- lproven 2y agoOMG, please no! Look, I am writing a news story about the release of update 3 for Amiga OS 3.2.2 -- is that enough?
- snvzz 2y agoThat's just sad news, a reminder that AmigaOS still isn't Open Source, and that the ownership drama[0] isn't settled. 0. https://sites.google.com/site/amigadocuments/ https://sites.google.com/site/amigadocuments/
- lproven 2y agoIt really is. FWIW I am also linking to AmigaOS 4, MorphOS and AROS... I wish "Notch" Persson or some other billionaire nerd would just buy the things and declare the whole lot freeware. There surely cannot be much residual value to extract any more.