ROM unscramblers

A set of python scripts for decoding and/or unscrambling various drum machine ROMs. 
They have been tested with python 3 in Windows.

TR-505 unscrambler assumes the ROM binary already has the address and data lines in the correct order.
It fixes the inverted address line, recombines the cymbals and separates the short, interleaved samples.

By special request, I've uploaded a 505 re-scrambler. Again, this doesn't take into account the jumbled address/data lines. You'll need to use a tool like EPROM pin swapper to reorganize things. Even then, the replacement EPROM will need to be rewired a bit. I touch on it in my TR-505 post.

TR-626 unscrambler accounts for the swapped address lines.
All interleaved samples are separated. All cymbals are recombined.

626 scrambler accepts a WAV file as a command line argument. Outputs a bin file ready to burn to an EEPROM.

DR 220 expander takes the 220's 8bit mu-law encoded ROM and converts it to a 16bit PCM binary: effectively a headerless WAV file.

Mu-Law expander takes most mu-law encoded ROMs (eg. DMX, Linn Drum, Drumtrax) and outputs a 16bit PCM binary.