The datasheet for the device will give the timings. It looks like you would need 15x Address, 8x Data & 3x Control pins to program so an UNO will be no use without external components. You could use a HEX viewer to see contents of .rom file (If your using Windows then try HxD - Freeware Hex Editor and Disk Editor | mh-nexus) if it's not ASCII like the .hex files for Arduino. To decode the meaning of the .rom file you will need to know what processor the code is written for (assuming it's not just data)