Format:
-hex name
-no-hex
Set the name of the generated HEX file to `name'. The default
is the program name with `.jal' replaced by `.hex', or `.hex'
appended if the program name doesn't end in `.jal'.
If '-no-hex' is used, no HEX file will be generated.
The HEX file is used by PIC programmers and bootloaders to load the program onto the microcontroller.