Ok thanks for all suggestions, for
now I'll stick with IHEX format,
because I don't have much time for some
major changes.
I hacked it using 0xA5 undefined instruction, simply when parser finds 0xA5 byte as opCode it treats rest of
the code as data code.
I know it's ugly but for now it will work.

This question is off the subject,
can someone explain me how does add,
and addc instructions work.
I'm not very clear with this C, AC, OV
flags stuff.

Thanks in advance!!