File list (Check if you may need any files):
External interrupt\Debug\Exe\Demo.d51
..................\.....\...\Demo.hex
..................\.....\Obj\Demo.pbd
..................\.....\...\main.r51
..................\Demo.dep
..................\Demo.ewd
..................\Demo.ewp
..................\Demo.eww
..................\main.c
..................\settings\Demo.cspy.bat
..................\........\Demo.dbgdt
..................\........\Demo.dni
..................\........\Demo.wsdt
..................\Debug\Exe
..................\.....\List
..................\.....\Obj
..................\Debug
..................\settings
External interrupt