Archive for category Uncategorized

Zoom background #23

Zoom background #22


A flour windmill on the island of Leros, Greece.

Zoom background #21


This is what the sky looks like in the Bay Area this week. The orange glow is due to high altitude smoke from the fires that are ravaging the area. The air quality is actually not too bad because the smoke is much higher than usual.

Zoom background #20


Screen shot Flight Simulator 2020. The game receives real time weather data and this is a model of hurricane Laura as it was unfolding.

Zoom background #19

A Chip-8 emulator written in Kotlin

I’ve always wanted to write an emulator. First because I have a lot of interest in retrocomputing, and more particularly, in cracking old school Apple ][ games, but mostly because an emulator has always seemed to me to be a great mix of technical challenge with a very rewarding feeling as you make progress. So I made it my week end project to write a Chip-8 emulator.

Chip-8 is a very popular CPU to emulate and usually the first project people who are new to this exercise undertake, so it was an easy choice. The spec is short and except for a few tiny details, very clear on how to implement this CPU. It’s graphical too, which is important from a reward standpoint. I was absolutely thrilled when I saw the beginning of the welcome screen of Space Invaders appear on my screen after I had implemented just a few opcodes.

You can find the emulator on Github with all the technical details.

I am very tempted to work on a harder emulator now, from a real console. I am fluent in 6502 so maybe SNES, or even an Apple ][…

Zoom background #18


Screen shot from Assassin’s Creed: Odyssey

Interesting reads – 08/09/2020

Zoom background #17


Screen shot from Star Wars: Battlefront

Zoom background #15


“Operator”