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Game Boy pixel pipeline explorer

Game Boy pixel pipeline explorer

by blueblazin·May 27, 2026·14 points·6 comments

AI Analysis

●●●BangerWizardryNiche GemBig Brain

Step-through PPU debugging with cycle-accurate pixel pipeline visualization for emulator devs.

Strengths
  • Cycle-accurate PPU stepping lets you watch pixel fetching happen in real time.
  • Full register state inspection alongside visual pipeline stages.
  • Pre-loaded test ROMs including dmg-acid2 and known glitch scenarios.
Weaknesses
  • Extremely niche audience - only matters if you're building a Game Boy emulator.
  • No apparent way to load your own ROMs for custom debugging sessions.
Target Audience

Game Boy emulator developers and retro computing enthusiasts

Similar To

SameBoy debugger · Gambatte debug tools

Post Description

I made a pixel pipeline explorer for the original Game Boy's Pixel Processing Unit (PPU). If you are implementing a Game Boy emulator or just interested in it then this might provide some help :)

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