This is the code in the Apollo Guidance Computer for Apollo 11.
It's part of the LUMINARY sofware, which ran on the AGC on the Lunar Module. It's meant to check if the landing radar is pointed toward the lunar surface - because the LM went through several orientations, the landing radar could be pointed to the front or the side or down. You're landing on the Moon. Point it down.
Point is, you have to verify user input. Even if your users are the most meticulous and highly trained individuals in history. You have to see if they're lying. So you get to the BURNBABY.
Browse the code in GitHub - this code is in THE_LUNAR_LANDING.agc
I knew I should've waited until I hadn't just woken up before trying to understand the comment. ๐
I'll take the blame, I shortened the statements maybe a bit too much, assuming the references would work. But they were explained well by the other replies.
I was learning in the 90s from lessons on AOL how to sanitize inputs and salt passwords along with HTML 1.0. It baffles me how corporations let stupid things happen now.
No worries! Once I got the meaning, the brevity makes it funnier. ๐
Yeah, it's pretty baffling... One of my two life mottos is "hard hard could it be!"