File list (Check if you may need any files):
PIC18F452_Calculator\calc.c
....................\calc.cce
....................\Calc.cof
....................\CALC.H
....................\CALC.hex
....................\CALC.map
....................\CALC.mcp
....................\CALC.mcs
....................\calc.o
....................\kbdio.c
....................\kbdio.o
....................\Last Loaded PICCALC.DBK
....................\lcdio.c
....................\lcdio.o
....................\PICCALC.DSN
....................\PICCALC.PWI
PIC18F452_Calculator