Thoroughly labeled and commented disassembly of the Sega Mega Drive/Genesis Trademark Security System bootrom targeting ASM68K; reworked from the SNASM68k-based disassembly by moxniso: https://github.com/moxniso/tmss

Builds bit perfect to dumps of the ROM other than the 14 KB of zeros added as hardware padding. For explanation of TMSS, see https://segaretro.org/TradeMark_Security_System

Thanks to CVGHiveBrain for the VDP register constants and inspiration for the styling.