[hatari-devel] SCC-B support

[Eero Tamminen <oak@xxxxxxxxxxxxxx>]

Hi Thomas,

I've tried the Hatari SCC-B support a bit when testing EmuTOS
serial output support.

Some comments:
* SCC-B doesn't have separate files for input and output like
  normal MFP serial does (in case they're unidirectional pipes)
* Unlike MFP serial, SCC serial doesn't create the output file,
  instead it fails if it doesn't already exist
* Although SCC-B is TT / Falcon specific, it gets still
  initialized for other machine types

Last two items are together somewhat annoying.  One can't start
even ST emulation before one has either disabled SCC emulation
or created the file it wants to open.


	- Eero