File list (Check if you may need any files):
my+C51+Calculator
.................\my C51 Calculator
.................\.................\cal.DSN
.................\.................\cal.PWI
.................\.................\calc
.................\.................\calc.c
.................\.................\Calc.h
.................\.................\calc.hex
.................\.................\calc.lnp
.................\.................\calc.LST
.................\.................\calc.M51
.................\.................\calc.OBJ
.................\.................\CALC.opt.bak
.................\.................\calc.plg
.................\.................\calc.PWI
.................\.................\CALC.Uv2.bak
.................\.................\CALC.uvopt
.................\.................\CALC.uvproj
.................\.................\CALC_Opt.Bak
.................\.................\CALC_Uv2.Bak
.................\.................\CALC_uvopt.bak
.................\.................\CALC_uvproj.bak
.................\.................\DS1302.c
.................\.................\DS1302.LST
.................\.................\DS1302.OBJ
.................\.................\KEYPAD.c
.................\.................\KEYPAD.LST
.................\.................\KEYPAD.OBJ
.................\.................\Last Loaded cal.DBK
.................\.................\Last Loaded calc.DBK
.................\.................\LCD.c
.................\.................\LCD.LST
.................\.................\LCD.OBJ