Drum Machine OSes

[LoneStar81]

Here are some OS ROM dumps of various machines:

http://lonestar.madtracker.net/OSpack.rar

Contents:
Alesis HR-16, HR-16:B
Kawai R-100
Korg DDD-1, DDD-5
Roland R-8
Yamaha RX5

Filenames contrain EPROM type (i.e. 27C256) and sometimes part name/number.
Viewing them you will notice that all on-display text is stored unencrypted and unscrambled. which makes personalising the OSes easy.

[Gordonjcp]

Viewing them you will notice that all on-display text is stored unencrypted and unscrambled. which makes personalising the OSes easy.

Not in the HR16 family, they're not!  The ROM is scrambled due to a hardware peculiarity which I've detailed in the past.  To descramble it, you need to grab and build svn://www.nekosynth.co.uk/nekosynth/utils/hr16utils/ to flip the lower eight bits of the address.