Quote > > Does any one know if any current SG1000/SMS/GG software uses I/O ports 0xA0 through 0xAF? As far as I can tell, these ports are not defined in these machines.
> No they aren't used at my knowledge, even for SC-3000 stuff.
Thanks.
Quote > > Additionally, does any one know of any effects of writing to these ports (on the real systems or on any emulators)?
> No idea on a real system.
> I guess emulators will ignore write and return 0x00 or 0xFF on a read. (Meka return 0x00)
O.k.
Quote > > I'd like to define these ports as debug ports in my AGAMA machine specification (for my emulator MesaDX).
> Go on.
> (Although I still find that not so useful than a good debugger ;)
Thanks for the information.
Eric Quinn
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