Hobby operating systems and Linux adopt FRED for simpler interrupt handling

hackaday.com

A new standard called Flexible Return and Event Delivery (FRED) is being adopted by hobby operating systems and Linux to simplify interrupt handling. FRED replaces the complex Interrupt Descriptor Table (IDT) by providing a consistent stack layout for all interrupts, addressing a major issue with the older system. This development allows for more straightforward interrupt management in custom operating systems, with a demonstration showing DOOM running on EvalynOS using FRED.


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Hobby operating systems and Linux adopt FRED for simpler interrupt handling | News Minimalist