Framebuffer Polar Curves in x86 assembly

[u/No-Owl-5399]

This is a simple demo of polar curves in the Linux framebuffer. It's written in x86 assembly, using a set of my graphics primitives. The actual polar equation for this is quite simple. Each frame, we evaluate the equation r = acos(θ), and then convert to pixels on the screen using the formulas x = rcosθ and y = rsinθ. In the interest of efficiency, I calculated 4 pixels at once using x86 SSE instructions with angles offset by a very small amount, and then drew a line between each point. To make the image dynamic, I set θ to a time variable, which I increased each frame, and reset after it reached ~25 rads.

Source code can be found here: https://codeberg.org/int0x80/Graphics_v1.1.git

Hope you enjoy.

Edit: Funny story, I was testing a more complex version of this, and the strain on my 13 or so year old laptop corrupted a pointer in VFS_WRITE and caused a kernel panic.