Sonic the Hedgehog (Mega Drive) Disassembly

Differences with the disassembly on the Sonic Retro Github page:

• dma macro - Replaces writeVRAM and writeCRAM macros.
• gmptr macro - Generates ids for game modes.
• index & ptr macros - Creates relative and absolute pointer lists; automatically generates id numbers.
• lsline macro - Allows level select menu strings to be stored as plain ascii.
• __sonic_sprites__ macro - The index for Sonic's mappings is reused for DPLCs, keeping them both congruous.
• filedef & incfile macros - Records the file name and decompressed size of graphics for VRAM management.
• objpos macro - Object placement in levels, also uses object ids instead of fixed numbers.
• plcm macro - Generates tile ids for VRAM addresses (e.g. tile_Nem_Ring). Automatically places graphics after previous graphics, if no VRAM address is specified.
• spritemap & piece macros - Creates sprite mappings.
• Z80 macros - See axm68k.
• Different labels used for object status table.
  • Constants used for render and status flags.
• Different labels used for some RAM addresses and routines.
  • Deprecated labels, as well as those from other games, are stored in a compatibility file.
• Automatic recompression of Kosinski and Nemesis-compressed data. Thanks to Clownacy for the Kosinski and Nemesis compressors.
• Automatic RAM management.
  • Prevents word/longword variables starting on an odd address.
  • Prevents accidental clearing of bytes after the end of a cleared section (which are always in multiples of 4 bytes).
  • Indicates how much RAM is used (and unused) in errors.txt.
• DAC driver is compiled, compressed and inserted seamlessly. Thanks to AuroraFields for the Dual PCM tool.