File list (Check if you may need any files):
DOS(仿真)
.........\DOS(双核V1.2).DSN
.........\_CODE
.........\.....\MAIN_CODE
.........\.....\.........\bios.h
.........\.....\.........\Calculater.h
.........\.....\.........\Calendar.h
.........\.....\.........\command.h
.........\.....\.........\doTime.h
.........\.....\.........\EOS.hex
.........\.....\.........\FileManage.h
.........\.....\.........\MusicCode.h
.........\.....\.........\MusicMould.h
.........\.....\.........\Operation.C
.........\.....\.........\Operation.Uv2
.........\.....\.........\PlayMusic.h
.........\.....\.........\test.h
.........\.....\.........\Words.h
.........\.....\MusicEncode.exe
.........\.....\MUSIC_CODE
.........\.....\..........\Bios.h
.........\.....\..........\fileManage.h
.........\.....\..........\MusicCode.h
.........\.....\..........\MusicSystem.hex
.........\.....\..........\MusicSystem.Uv2
.........\.....\..........\PlayMusic.c
.........\.....\..........\SoundPlay.h
.........\指令使用说明.txt