The code is available at my github repository (link).

To compile the code it is necessary to have SDCC installed. When using SDCC in Linux it is necessary to generate the header files from the Microchip include files (link)

compile the code just type the following command:

sdcc --use-non-free -mpic14 -p16f628 main.c -o "dc10"

It will generate the "dc10.hex" file that can be then flashed on the microcontroller.