embly x86/A86 Problem to Solve?

We really need to know where the input/output is. It could be the OS or it could be coming over a serial line connected to a CRT terminal. embly does not have "standard" instructions for this type of thing. If you don't have an OS we need embly routines to do I/O directly to the ports. We would need to know what ports and what is connected to those ports.