a os kernel running on mcus ,for example 51 avr pic arm

os kernel_gongkong
..................\Keil
..................\....\Config.ini
..................\....\Init.__i
..................\....\Init.lst
..................\....\Init.obj
..................\....\MS3
..................\....\MS3.M51
..................\....\MS3.Opt
..................\....\MS3.Uv2
..................\....\MS3.hex
..................\....\MS3.lnp
..................\....\MS3.plg
..................\....\MS3_Opt.Bak
..................\....\MS3_Uv2.Bak
..................\....\STARTUP.A51
..................\....\STARTUP.LST
..................\....\STARTUP.OBJ
..................\....\boot.__i
..................\....\boot.lst
..................\....\boot.obj
..................\....\flash.__i
..................\....\flash.lst
..................\....\flash.obj
..................\....\interrupt.lst
..................\....\interrupt.obj
..................\....\key.__i
..................\....\key.lst
..................\....\key.obj
..................\....\mcu.__i
..................\....\mcu.lst
..................\....\mcu.obj
..................\....\mcu_ext.__i
..................\....\mcu_ext.lst
..................\....\mcu_ext.obj
..................\....\message.__i
..................\....\message.lst
..................\....\message.obj
..................\....\mmi.__i
..................\....\mmi.lst
..................\....\mmi.obj
..................\....\printf.lst
..................\....\printf.obj
..................\....\putchar.lst
..................\....\putchar.obj
..................\....\routine.__i
..................\....\routine.lst
..................\....\routine.obj
..................\....\rtc.__i
..................\....\rtc.lst
..................\....\rtc.obj
..................\....\system.__i
..................\....\system.lst
..................\....\system.obj
..................\....\timer.__i
..................\....\timer.lst
..................\....\timer.obj
..................\....\trace.__i
..................\....\trace.lst
..................\....\trace.obj
..................\....\uart.__i
..................\....\uart.lst
..................\....\uart.obj
..................\....\utility.__i
..................\....\utility.lst
..................\....\utility.obj
..................\MS3.IAB
..................\MS3.IAD
..................\MS3.IMB
..................\MS3.IMD
..................\MS3.PFI
..................\MS3.PO
..................\MS3.PR
..................\MS3.PRI
..................\MS3.PS
..................\MS3.SearchResults
..................\MS3.WK3
..................\SourceFile
..................\..........\README.TXT
..................\..........\REG52x2.h
..................\..........\boot.c
..................\..........\common.h
..................\..........\flash.c
..................\..........\flash.h
..................\..........\key.c
..................\..........\key.h
..................\..........\mcu.c
..................\..........\mcu.h
..................\..........\mcu_ext.c
..................\..........\mcu_ext.h
..................\..........\message.c
..................\..........\message.h
..................\..........\mmi.c
..................\..........\mmi.h
..................\..........\putchar.c
..................\..........\routine.c
..................\..........\routine.h
..................\..........\rtc.c
..................\..........\rtc.h
..................\..........\timer.c

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