DOSBox using a serialport

In order to allow DOSBox to use the serial ports of the computer you need to change the settings.

I do this in the conf file to have it in one location

# serial1-4 -- set type of device connected to com port.
#              Can be disabled, dummy, modem, nullmodem, directserial.
#              for directserial: realport (required), rxdelay (optional).
serial1=directserial realport:com1
serial3=directserial realport:com34

So this example setting means that com1 of my computer (Windows) is com1 in DOSBox and com34 of my computer is com 3 in DOSBox

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