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# TGB Dual - RetroBIOS

Type | libretro
Classification | community_fork
Source | https://github.com/libretro/tgbdual-libretro
Upstream | http://gigo.retrogames.com/download.html#tgb-dual
Version | v0.8.3
Profiled | 2026-03-25
Cores | TGB Dual
Systems | nintendo-gb, nintendo-gbc

Technical notes

Game Boy / Game Boy Color emulator by GIGO and Hii with link cable support for two units side by side. Libretro port based on shinichiro.h's SDL port.

cpu::reset() initializes PC to 0x100 and sets post-boot register values (AF=0x01B0 DMG, 0x11B0 CGB), bypassing the boot ROM via HLE. No system directory access, no file I/O for firmware.

No BIOS or firmware files required. Generated on 2026-03-25T14:56:43Z