Read what software others recommended. Then get some example file for an 8086 processor and try decompiling it to see how good is the workflow in that soft. Then you will probably need to combine the two eeproms into a single file, unless the eeprom reader or software supports interleaved data.
I have not tried because i am wiating for your advice.
If you tell me MASM32 I`ll test. ¿How do I compose the final code i have to dissasemble (with MASM32) with the HIGH and LOW binary files read from both EPROMS?
One more time, thanks for your time and your Knowledge
This really depends on what eeprom programmer you use and how it outputs it's data. If you get two simle binary files, then I would simply write a C program to merge them - if you are attempting to dissassemble an embeddes system you should have no trouble with that.