[att.sys.pc6300] I/O Address Space Map

seorcutt@ihlpm.ATT.COM (Sam Orcutt) (11/16/88)

Sorry if this is well known data but I can't seem to find it.  I have
inherited some software for my PC that I'm trying to make work.  I've
just about got it figured out, from disassembly listings, but it insists
on doing a lot of IN and OUT instructions.  Does anybody out there have
a pointer to some documentation as to what is located at the various I/O
addresses and what the various reads and writes like for data?  Any help
would be greatly appreciated.
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