File list (Check if you may need any files):
一个执行效率很高的4x4键盘程序
.............................\4mul4 key.DSN
.............................\4mul4 key.PWI
.............................\keyscan
.............................\keyscan.c
.............................\keyscan.hex
.............................\keyscan.lnp
.............................\keyscan.LST
.............................\keyscan.M51
.............................\keyscan.OBJ
.............................\keyscan.Opt
.............................\keyscan.plg
.............................\keyscan.Uv2
.............................\keyscan_Opt.Bak
.............................\keyscan_Uv2.Bak
.............................\Last Loaded 4mul4 key.DBK
.............................\STARTUP.A51
.............................\STARTUP.LST
.............................\STARTUP.OBJ
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