Commodore BASIC .TXT listing out and in

This image shows a quick-reference for how to LIST out to a file, and have BASIC type in a listing from a file.  This is not original work except for fixing the port to plus/4 and similar.

Links:

• https://www.sx64.net/info/disk_commands.html
• https://www.scribd.com/document/1055555189/Twin-Cities-128-Issue-08

(plus/4,16,116 version is a careful and thoughtful port of the sx64.net version, meaning AI Gemini tried really hard, but kept getting confused by C64 knowledge.  AI got the 2035 and 810 addresses right, but I had to research the values to poke.  Informing AI of the correction, it kept trying to supplement the answer getting it more wrong, so I put an end to that!)