For the record, you can work around the high bit issue without modifying the source by configuring the terminal for 7 data bits and mark parity. (This seems to have been one of the most common formats for serial ASCII transmission in the 1960s and 1970s, even after IC UARTs started to make the framing parameters more easily configurable. It became highly undesirable when 8-bit character sets began to proliferate in the 1980s.)

Last edited by AJR; 02/16/23 03:06 AM.