here we load hex file direct to our target chip (like we do when loading
the final programe in hex after succsesful and final hex fileis developed)
and observe all resisters ,accumalater etc. once again with some software
in a pc .
Have i understood right???

to take advantage of any emulator, you need to use not a .hex file, but a .omf (Keil, other brands may have different extensions) file. Otherwise you will have to work blindly from a dump.

Erik