Ticking Time Bomb

Hello everyone! It seems that, yet again, I have forgotten to make a devlog for a few hours, so let’s dive in! Fortunately, not much has happened.

16 GB of VRAM

As I said in my last devlog, it was time to get started on graphical stuff. I set up a GPU struct with a separate VRAM, and set up the memory to write to that VRAM instead of the regular bus when it’s supposed to.

This was also the last part of the docs I’ve been following, so I’ve been on my own since this point. It’s a little pesky that my best resources on how the GB works are now Claude Code and a random opcode table, but what can you do?

Tick-Tock Goes the Clock

Different operations in the GB’s processor take different numbers of clock cycles to do, so I had to add this as a second return value to execute to add slowing in the future. This was the majority of the hours I logged, staring at the opcode table and trying to figure out the patterns in the timings.

Anyway, see y’all next time! These are some silly things that will probably land for at least some of you.