2026-02-09-GBC-Shaders

I put a real-time 3D shader on the Game Boy Color, Danny Spencer

Self-modifying code is a super-effective way to make code fast. But most modern developers don’t do this anymore, and there are good reasons: It’s difficult, rarely portable, and it’s hard to do it right without introducing serious security vulnerabilities. Modern developers are spoiled by an abundance of processing power, super-scalar processors that take optimal paths, and modern JIT (Just-In-Time) runtimes that generate code on the fly. But we’re on the Game Boy, baybeee, so we don’t have those options.