Date   : Mon, 18 Mar 1985 09:51:30 pst
From   : Jordan Hayes on ttyp2 <jordan%ucbarpa@ucb-vax.ARPA>
Subject: Port I/O from MBASIC...

Does anyone know how to do port I/O in MBASIC (5.21 or similar) -- you
can't just open a device as a file... I have read the documentation for
OUT and IN, but how do you know which 'port-address' to use, or find
the status of the port ?

Any help appreciated...

/jordan
ARPA:  jordan@ucbvax.ARPA
UUCP:  ..!ucbvax!jordan