[alt.msdos.programmer] Changing bits in memory

DGH103@PSUVM.BITNET (12/06/89)

I need some help. I am trying to write a program for my Tandy 1400LT that will
switch between the modem and the com port (for some reason you can't use both
at the same time). I have the technical reference manual and it says to do that
 it is &0FCH bit number 4. I have tried to change that bit using BASIC and
PASCAL with no luck. Can anybody out there help me???
Thanks
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Darryl G. Hickson - Penn State University
761 Stratford Drive
State College, PA 16801
(814)867-2234