It works correctly with real hardware (use calctro.raw) and v41 emulator (there is problem with sound sync though)
No synthetic instructions.

Please respect original hardware! Use emulators for software development only.

If you don't have HP-41 + HP82106A, check out Youtube video: 
https://www.youtube.com/watch?v=fJzmQ0yoP8A

http://enlight.ru/roi
E-Mail: frog@enlight.ru
