Over the course of a few posts, I will be constructing an NES emulator that will allow you to play NES ROMs. Today’s post is the first in this series, where I will be walking through the process of emulating the CPU the NES used, the MOS 6502.
The 6502 has 6 primary registers we need to emulate in our program.
The A register is the accumulator, which is 1 byte long
The X register…
A 6502 is not a bad little machine, but it does require efficient coding to get decent real-time results. NESHacker dives into basic Mario-style platformer movement in a 10-minute video The main portion of the video goes into subpixel movement, a term you may have heard speedrunners use. Many NES platformer heroes don’t jump immediately … Continue reading "NESHacker on Basic NES Platformer…
Emulating a 6502 shouldn’t be that hard on a modern computer. Maybe that’s why [lasect] decided to make it a bit harder. The PG_6502 emulator uses PostgreSQL. All the CPU …read more
The KIM-1, 50 years old as of 2026, was the first 6502-based home computer, designed by the legendary Chuck Peddle and sold by MOS Technologies themselves. (Well, we’re not sure if the Apple I or the KIM-1 was first. Or maybe it was the JOLT? As I’ve said before, there’s always something you’ve never heard … Continue reading "The KIM-1 Programmer’s Guide to the MOS 6502"
Back in September 2025 we posted about Anders Nielsen's PhaseLoom, an SDR based on the MOS Technology 6502 chip - the chip behind the early age of home computing, powering iconic systems like the Apple I & II, Commodore 64, Atari, and Nintendo Entertainment System. Anders has now moved on and created PhaseLatch, which combines […]
Making your own laptop can be a challenging project, but a doable one, especially given the large number of options available today for computing. Of course nothing says you need …read more
Are you in the mood for a retrocomputing deep dive into the Scriptovision Super Micro Script? It was a Canadian-made vintage video titler from the 80s, and Cameron Kaiser] has […read more