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- Simon's docs have a section on the timers for the legacy systems and the Prizm. Legacy section says 1-5 are system, 6-10 are user timers. 2 is used for syscall 0x0251 upon key presses and 4 is for USB using 0x04AE. For the Prizm, 4 is still USB using 0x1ECF. I will try to dig into these interrupt handlers and see what I can do with them.
- Ahelper (talk) 17:04, 23 November 2014 (EST)