File list (Check if you may need any files):
4-4keyboard
...........\key.c
...........\key.cof
...........\key.dbg
...........\key.dp2
...........\key.hex
...........\key.i
...........\key.lis
...........\key.lk
...........\key.lst
...........\key.mak
...........\key.mp
...........\key.o
...........\key.prj
...........\key.s
...........\KEY.SRC
...........\key._c
...........\key._h
...........\main.c
...........\main.dp2
...........\main.lis
...........\main.o
...........\main.s
...........\main._c
...........\UART.C
...........\UART.dp2
...........\UART.i
...........\UART.lis
...........\UART.o
...........\UART.s
...........\UART._C