Synchronization, Debugging, and Verifying with Test ROMs

Tue, 05 May 2026 00:00:00 +0000

Introduction

Building a Game Boy emulator is a complex dance of interacting hardware components. The CPU, Picture Processing Unit (PPU), and Audio Processing Unit (APU) all operate at different speeds and rely on precise timing to function correctly. In this chapter, we’ll tackle the critical challenge of synchronization, ensuring these components work together harmoniously.

Beyond just making things run, we need to know why they run or, more importantly, why they fail. This is where debugging becomes indispensable. We’ll implement practical debugging tools—from logging to conditional breakpoints—to help us peer into the emulator’s internal state.

Test ROMs on AI VOID

Synchronization, Debugging, and Verifying with Test ROMs

Introduction