I naturally went down a rabbit hole to see if I could find why those characters weren't printing properly. https://www.atarimania.com/mags/pdf/Antic_Vol_7_No_4

I naturally went down a rabbit hole to see if I could find why those characters weren't printing properly. https://www.atarimania.com/mags/pdf/Antic_Vol_7_No_4.pdf https://www.atarimania.com/mags/pdf/Antic_Vol_7_No_4.pdf On p. 31, you can see the intended characters. I now remember that Atari actually had their own variant of ASCII, called ATASCII: https://en.wikipedia.org/wiki/ATASCII https://en.wikipedia.org/wiki/ATASCII Atari 8-bits were actually really cool computers, in that they let you do things like redefine character sets entirely (to create custom character sets to effectively create tile-based displays), play with display-list interrupts, etc.