Sonic CD Disassembly

NOTE: This has been moved here.

This is a WIP disassembly of Sonic CD for the Sega CD. Builds a working ISO, as long as you provide the rest of the files.

Currently Contains

• Initial program
• System program
• Main program file (IPX)
• System program extension file (SPX)
• Backup RAM initialization file (BRAMINIT)
• Sub CPU Backup RAM functions file (BRAMSUB)
• Mega Drive initialization file (MDINIT)
• FM sound driver (SMPS Z80)
• SMPS-PCM
  • Palmtree Panic (SNCBNK1B)
  • Collision Chaos (SNCBNK3B)
  • Tidal Tempest (SNCBNK4B)
  • Quartz Quadrant (SNCBNK5B)
  • Wacky Workbench (SNCBNK6B)
  • Stardust Speedway (SNCBNK7B)
  • Metallic Madness (SNCBNK8B)
  • Boss (SNCBNKB1)
  • Final Boss (SNCBNKB2)
• Title screen (TITLEM and TITLES)
  • Secrets
    • Stage select (STSEL)
    • Sound test (SOSEL)
      • Prototype version (DUMMY5, DUMMY6, DUMMY7, DUMMY8, DUMMY9)
    • Easter eggs (NISI, DUMMY0, DUMMY1, DUMMY2, DUMMY3)
    • Best of staff times (DUMMY4)
    • Secret special stage credits (SPEEND)
• Level
  • Palmtree Panic Act 1 (R11A, R11B, R11C, R11D, DEMO11A)
  • Wacky Workbench Act 1 (R61A)
• Special Stage (SPMM and SPSS)
• Time warp cutscene (WARP)
• FMVs
  • Opening FMV (OPEN_M, OPEN_S, OPN.STM)
  • Good ending Sub CPU program (BADEND.BIN, not a typo)
  • Bad ending Sub CPU program (GOODEND.BIN, not a typo)
  • Pencil test Sub CPU program (PTEST.BIN)
• DA Garden (PLANET_M, PLANET_S, PLANET_D)
• Visual Mode menu (VM)

Special Thanks

Special thanks to flamewing and TheStoneBanana for helping out and contributing, especially for R11A in the disassembly's infancy stages back in 2015.