One last thought... do any of the TRS-80 Model I
emulators have serial
port support? Would this not solve your problem if they did, or is there
some real-world problem you're trying to solve?
It needs to run on the original TRS-80.
Ok, why? :)
For demo purposes ;)
Sellam Ismail Vintage Computer Festival
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International Man of Intrigue and Danger http://www.vintage.org