skyemu

Type	standalone + libretro
Classification	Official ports
Source	https://github.com/skylersaleh/SkyEmu/blob/v5/src/libretro.c
Upstream	https://github.com/skylersaleh/SkyEmu
Version	v5
Revision	skylersaleh/SkyEmu@01516d6798e3
Profiled	2026-03-25
Profile	YAML, JSON
Cores	skyemu
Systems	nintendo-gb, nintendo-gbc, nintendo-gba, nintendo-ds

Technical notes

Multi-system emulator by skylersaleh. Libretro core built from the upstream repo. All BIOS optional: bundles Cult-of-GBA BIOS (GBA), DraStic free BIOS (NDS ARM7/ARM9), stub firmware (NDS), and HLE boot skip (GB/GBC). BIOS loading controlled by core options (default: on). Files loaded from system_dir/SkyEmu/ subdirectory. Standalone validates exact BIOS file size, while libretro only rejects files exceeding buffer. .info missing gb_bios.bin (gb.h:1603).

6 files | 0 required, 6 optional | 6 in repo, 0 missing | 6 with HLE fallback

cgb_boot.bin optional in repo HLE fallback #
GBC boot ROM

• Path: SkyEmu/cgb_boot.bin
• Aliases: gbc_bios.bin, cgb0_boot.bin, cgb_agb_boot.bin
• Source: src/gb.h:1593-1596, src/gb.h:1605-1608
• Collection copy: bios/Nintendo/Game Boy Color/cgb_boot.bin
• Platforms: recalbox gbc/cgb_boot.bin

dmg_rom.bin optional in repo HLE fallback #
DMG boot ROM

• Path: SkyEmu/dmg_rom.bin
• Aliases: dmg0_rom.bin, gb_bios.bin
• Source: src/gb.h:1601-1603
• Collection copy: bios/Nintendo/Game Boy/GB_dmg.bin
• Platforms: batocera gb_bios.bin, bizhawk GB_dmg.bin, lakka dmg_boot.bin, dmg_rom.bin, gb_bios.bin, recalbox gb/gb_bios.bin, retroarch dmg_boot.bin, dmg_rom.bin, gb_bios.bin, retrobat gb_bios.bin, retrodeck bios/gb_bios.bin, retropie dmg_boot.bin, dmg_rom.bin, gb_bios.bin, rocknix gb_bios.bin, romm gb/dmg_boot.bin, gb/gb_bios.bin

gba_bios.bin optional in repo HLE fallback #
GBA BIOS

• Path: SkyEmu/gba_bios.bin
• Source: src/gba.h:1726-1730
• Collection copy: bios/Nintendo/Game Boy Advance/GBA_bios.rom
• Platforms: batocera gba_bios.bin, bizhawk GBA_bios.rom, lakka gba_bios.bin, misterfpga GBA/boot.rom, recalbox gba/gba_bios.bin, retroarch gba_bios.bin, retrobat gba_bios.bin, retrodeck bios/gba_bios.bin, retropie gba_bios.bin, rocknix gba_bios.bin, romm gba/gba_bios.bin

nds7.bin optional in repo HLE fallback #
NDS ARM7 BIOS

• Path: SkyEmu/nds7.bin
• Source: src/nds.h:3088-3089
• Collection copy: bios/Nintendo/DS/NDS_Bios7.bin
• Platforms: batocera bios7.bin, bizhawk NDS_Bios7.bin, emudeck bios7.bin, lakka bios7.bin, nds7.bin, recalbox nds/bios7.bin, retroarch bios7.bin, nds7.bin, retrobat bios7.bin, retrodeck bios/bios7.bin, retropie bios7.bin, nds7.bin, rocknix bios7.bin, romm nds/bios7.bin

nds9.bin optional in repo HLE fallback #
NDS ARM9 BIOS

• Path: SkyEmu/nds9.bin
• Source: src/nds.h:3091-3092
• Collection copy: bios/Nintendo/DS/NDS_Bios9.bin
• Platforms: batocera bios9.bin, bizhawk NDS_Bios9.bin, emudeck bios9.bin, lakka bios9.bin, nds9.bin, recalbox nds/bios9.bin, retroarch bios9.bin, nds9.bin, retrobat bios9.bin, retrodeck bios/bios9.bin, retropie bios9.bin, nds9.bin, rocknix bios9.bin, romm nds/bios9.bin

firmware.bin optional in repo HLE fallback #
NDS firmware

• Path: SkyEmu/firmware.bin
• Source: src/nds.h:3094, src/nds.h:3200-3268
• Collection copy: bios/Nintendo/Nintendo DS/firmware.bin
• Platforms: batocera firmware.bin, emudeck firmware.bin, lakka firmware.bin, retroarch firmware.bin, retrobat firmware.bin, retrodeck bios/firmware.bin, retropie firmware.bin, romm nds/firmware.bin

Generated on 2026-10-20T02:31:30Z