The command-line tool allows to upload your 6809-binaries to a Vectrex game console provided that you got the VecMulti card by Richard Hutchison.
Usage: vecmultiupload DEVICE BINARY
Example: ./vecmultiupload /dev/ttyUSB0 demo.bin
The vectrex test rom demo.bin is included. You are free to use the few lines of code for any purpose may it be private or commercial. Millitary usage however, is strictly forbidden :)
...Objective is to separate the user application from the tedious management of the device (eg. constant polling to prevent their reset function, USB interaction requirements).
A /dev device is created per chain through which applications can read/write status and commands. A command-line tool is included to assist with testing and to illustrate the /dev interface.
Built with information from various sample coding done by others over the years, who are referenced in the code comments - many thanks to those that have gone before me.