Description: This is a 4.4FreeBSD time_out network on the ceiling function kern_clock.c file reconstruction, of course, I deleted some time_out functions is not part of, and to transplant it, and added a two-way linked list, this list is more suitable for low-end microcontroller to run.
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File list (Check if you may need any files):
Timer\Timer.dsw
.....\Timer.ncb
.....\Debug\Timer.sbr
.....\.....\main.sbr
.....\.....\Timer.bsc
.....\.....\vc60.idb
.....\.....\vc60.pdb
.....\.....\Timer.obj
.....\.....\Timer.pch
.....\.....\main.obj
.....\.....\Timer.pdb
.....\.....\Timer.ilk
.....\.....\Timer.exe
.....\Timer.plg
.....\Type.h
.....\Timer.h
.....\Timer.c
.....\main.c
.....\Timer.dsp
.....\Timer.opt
.....\Debug
Timer