

US GOLD TAPE

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Found on... 720 Degrees, Bionic Commando, California Games, Choplifter, 
Crystal Castles, Gauntlet, Impossible Mission 2, Outrun, Rolling Thunder, Solomons Key, 
Thunderblade, Trailblazer, Trailblazer 2, Turbo Outrun, World Games etc..

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Threshold : $2D ($168 clock cycles).
Bit 0 : $25 
Bit 1 : $3F 
Endianess : MSbF 

Pilot byte : $20 (usually *64)
Sync byte  : $FF 

Then... 

16 bytes: Filename 
2 bytes : Start Address (LSBF) 
2 bytes : End Address (LSBF) 
n bytes : Data 
1 byte  : Checksum (XOR of all data bytes) 





