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The original was posted on /r/sbcgaming by /u/Key-Brilliant5623 on 2026-04-14 17:03:41+00:00.

Developer toruzz on X reveals a emulator project GB Bridge that aims to “port” Gameboy games to the GBA:

"For the longest time, I’ve been working on a way to port GB games to the GBA. What I ended up building is a modified GB>GBA emulator that targets a fantasy console instead - I call it the GB Bridge.

GB Bridge is basically a GBC with a different memory map, a bigger screen, and extra inputs. The real trick is that I use special registers to trigger native GBA routines from the emulator - meaning that, while very hard to pull off, I can push things as much as I want."

This enables romhackers/artists to port games to the GBA in the same way the DX hacks port GB games to the GBC.

This is done in two steps: 1. A romhack to port GB/GBC→ GB Bridge

1. A romhack that triggers calls to execute native code + that native code."