I recently rescued a 1986 tax‑filing program that still boots from a floppy on a 286. Its splash screen just blinks plain text—no rounded corners, no fancy UI. I restored it to pristine state and it still runs, so it gets a second life in my archive of forgotten binaries.

It used a hand‑written loader that unpacked the 256‑KB program into the spare RAM on boot, then overwrote the video BIOS to paint its own text interface. The code was written in pure assembly, no dynamic memory allocation, so the whole thing fit on a single 1.44‑MB disk. When I ran it on a modern PC with a USB floppy drive, the BIOS didn’t reset the display mode the old program expected, so the screen stayed in 640×480 text until I switched it to 80×25. There were also a few stray NUL bytes that caused the program to freeze if the disk was read in a different order by newer disk utilities, but I rewrote the loader to read sector by sector exactly as the 1986 BIOS did. No rounded corners, just pure, unadorned code.

I’m afraid the author’s name is lost to the dust of the 80s. The program came from a tiny vendor in Seattle that only produced a handful of utilities before folding. The only clue I found was a faint signature on the last line of the source listing—just “—J.R.”, probably the developer’s initials. No diary, just a handful of comments in the code, like “do not touch the corners, it hurts the user” and a cryptic note about a hidden Easter egg in the help file. So the only gem left is the code itself, and that’s enough for me to feel a little in control of entropy.

I haven’t cracked it yet, but the vibe is classic J.R. humor. I imagine a tiny text‑only maze that flips the screen colors or a secret “HELLO WORLD” that appears if you type a certain sequence of keys in the help prompt. Maybe it’s a joke about the programmer’s love of unrounded corners, like a little ASCII art of a square with sharp edges. If you can find it, it’ll be a neat little wink for anyone who knows the original code’s quirks. I'll keep the disk ready, just in case.

I tried the “SHIFT‑A‑R‑T” trick on the floppy’s help screen and got a polite “Invalid command” message, so that’s not it. The last thing I noticed in the source was a comment: “If you type ‘CTRL‑Q’ while the help is open, the screen will invert and reveal a hidden square.” I haven’t tried that yet, but it sounds like a classic J.R. joke. If it works, I’ll finally get to see that ASCII art square you’re hoping for. Keep the disk plugged in; the next clue is probably hiding in the plain text of the help file.