TimeTop

Every BIOS file for TimeTop machines, one card per file.

How to read a card

A card gives the file's fingerprints, the emulators that read it, the setups that list it and where to download it. A file can have several versions, one per region or revision: the main one comes first, the others under "Variants". To install the files of one console, open its "Install" box.

On the setup's list names the setups whose own BIOS list has the file, by the name each gives it. Packed for its emulators by names the setups whose pack adds it because one of their emulators reads it.

GameKing

Install the files of GameKing

Each platform names the system its own way.

Linux, macOS, Steam Deck:

Terminal

# MiSTer FPGA
curl -fsSL https://abdess.github.io/retrobios/i | sh -s -- --platform misterfpga --system gameking

Windows (PowerShell):

PowerShell

# MiSTer FPGA
&([scriptblock]::Create((irm https://abdess.github.io/retrobios/i.ps1))) --platform misterfpga --system gameking

boot.rom 512.0 KB Download

SHA1

e0d056f8ebfd

On the setup's list

GameKing/boot.rom: MiSTer FPGA

Hashes and collection path

SHA1

e0d056f8ebfdf52ef6796d0375eba7fcc4a6a9d3

MD5

1c7e3cb2df4af8ce3eff187c4155d1a7

CRC32

5a1ade3d

SHA256

7843fd082889cac046d446160f38755f7c8c4a8e4f9dd9d5104b185f0bc1dec4

Collection path

bios/TimeTop/GameKing/boot.rom

gm220.bin 512.0 KB No reader Download

SHA1

f9dcd3cb76bb

Hashes and collection path

SHA1

f9dcd3cb76bb7cb10565a1acb070ab375c082b4c

MD5

8a9dffb2baf0ee72fc53e1669bb84386

CRC32

1dc43bd5

SHA256

c9c5dc3141c9461717aa147adb4d0dda13c5ca0390b17e79bf7361c91fc4e230

Collection path

bios/TimeTop/GameKing/gm220.bin

Next steps

• Get your files, for the setup you play on
• When a game does not start
• Every emulator, and the files each one reads
• Every hash of these files, as JSON

Data as of 4 November 2026.