Hardware IO

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First post, by phillipsrb

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1) I'm a newbe to VOGONS so sorry for any transgressions.
2) DOSBox has allowed me to keep several valuable, efficient DOS-based CAE tools such as OrCAD SDT386 going - thanks to everyone that contributed to that.
3) There is one more DOS CAE tool that I'd really like to get going under DOSBOX + W10 but this uses a printer port to provide a basic 8 bit IO .
Is there any way to emulate that frm within DOSBOX possibly just 2 bits, e.g. by using the handshake pins on a serial IO?
I have access to the source code for this tool, in fact I wrote most of it.

Thanks for any help!