On 24 Aug 2015 at 17:58, Adam Klobukowski wrote: > #define etv_timer ((void (**)()) 0x400L) > > $000400|long |GEM Event timer vector > |etv_timer > > Are there apps that use it for anything, or is it internal to ROM AES? > I've used it myself in a program, and it's part of the published TOS API. Roger