Ross Nelson

167 Followers
294 Following
2.8K Posts

he/him. I like hugs and high-fives. Half merman (the top part). Developer, photographer, terrible musician, mostly okayish person on occasion.

#nobot

Pronounshe/him/his
LocationOmaha, NE
Webhttps://rnelson.omg.lol

I used this simple example, which shows how to copy the VGA font to RAM, then reprogram it using BIOS calls. When compiled with Turbo C 2.01, the font uploaded to the VGA card will be trashed.

VGA INT 10H call expects a far pointer to the new font set in register pair ES:BP.

See the screenshots for further information.

#msdos #retrocomputing

I involuntarily (cheers @root42!) spent my Saturday on tracing down an ancient Turbo C bug. ๐Ÿ˜…

The intr() function, used to call DOS/BIOS interrupts will pass the wrong BP register value to the interrupt. BP is heavily used in stack handling, so intr() generates a BP-reload-and-INT-trampoline on the stack, but the BP reload offset it creates is off-by-four.

Fix: Look for the sequence C6 46 F4 E2 in affected binaries, and change E2 to DE.

More details in reply. ๐Ÿงต

#msdos #retrocomputing

I don't know what it is about companies of a certain size, but do you ever get the feeling that Microsoft and Google would be happier if no one used their products?
A horror story in 8 words
Login:
Pride Beam โ 

Internet of Shit.

AI Poop Analysis App Offered to Sell Me Database of Its Users' Poops: The post was advertising exactly what it sounds like: A database of poop images, collected from an AI poop analyzing app that he had launched several years ago....
https://jwz.org/b/yk7R

My personal experience is that at minimum AI usage leads to skills regression, and for lack of better word, codependency.

The thing to be terrified about with AI is not supposed super intelligence, itโ€™s your labor being sold back to you.

www.404media.co/software-dev...
https://www.404media.co/software-developers-say-ai-is-rotting-their-brains/

Software Developers Say AI Is Rotting Their Brains

โ€œIt's making me dumber for sure.โ€

404 Media

There is a new, thoughtful comment on my "Inclusivity in Amateur Radio" post on the @kb6nu blog

https://www.kb6nu.com/inclusivity-in-amateur-radio/#comment-1045058

Thanks, K0BMM.

#hamradio
#amateurradio

Inclusivity in Amateur Radio

I will never understand how right-wingers think Star Wars is a movie that aligns with their politics.

The most right-wing aspect of Star Wars is when Leia kisses her brother.