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Super Disc Boot ROM

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Title Screen

Super Disc Boot ROM

Developer: Sony Corporation
Platform: SNES


CopyrightIcon.png This game has hidden developer credits.
DevTextIcon.png This game has hidden development-related text.
DebugIcon.png This game has debugging material.


We could only wish we were playing this right now... maybe...
This game was never completed and/or given a public release.
As a result of this, keep in mind that the developers might have used or deleted some of the content featured here, had the game actually reached store shelves.
So very stubbly.
This page is rather stubbly and could use some expansion.
Are you a bad enough dude to rescue this article?

The Super Disc Boot ROM would have been required to boot disc-based games on the ill-fated Nintendo Play Station, and came in the form of a separate cartridge that would have plugged into the console's cartridge slot. The fact that there is only one known working unit in existence makes this little more than a curiosity.

And now that the Super Disc prototype is finally working (HOORAY!!!), all that's needed is someone that can reverse-engineer it so that proper emulation of the Super NES CD add-on can happen.

Download.png Download Super Disc Boot ROM
File: Super Disc Boot ROM.rar (60 KB) (info)

Hidden Text

This string is located at the very beginning of the ROM:

Super Disc boot ROM ver.0.95 Jul. 14, 1992 by Tomomi Abe at SONY 

This string is located at 0x606B in the unheadered ROM:

Super Disc BIOS program ver.0.93 by Tomomi Abe. May. 26 1992 at SONY. 

MONITOR MENU

SuperDisc-MonitorMenu.png

Press A + X at the title screen to enter the debug menu.

SELF CHECK

SuperDisc-SelfCheck1.png SuperDisc-SelfCheck2.png
Basic Functions Expansion Functions
V-RAM EXPANSION RAM
CG-RAM BACKUP RAM
OAM CD-ROM DECODER
WORK RAM CD-PLAYER I/F
DMA
TIMER
VOLUME CHECK
Finished.

ADPCM

SuperDisc-ADPCM.png

  • Select — Return to main menu.
  • D-Pad — Set digits.
  • L / R — Select Previous / Next setting.

COMMUNICATION

SuperDisc-Communication.png

  • Select — Return to main menu.
  • D-Pad — Set digits.
  • B — Send command.
  • L / R — Select Previous / Next command.
  • X — Restore command during a command process.

CXD-1800

SuperDisc-CXD1800.png

  • Select — Return to main menu.
  • D-Pad — Set digits.
  • L / R — Select Previous / Next register.
  • B — Write/Read Byte to / from register.
  • Y — Set between Write / Read Mode.
  • X — Set between different IRQ modes (IRQ-1TIME, IRQ-IGNORE, IRQ-ALL)

BACKUP RAM

SuperDisc-BackupRAM.png
BACKUP RAM
There aren't any files.
Select Erase Return

Press Select at the title screen when the CD-ROM System is detected to access this menu.

  • D-Pad — Select Save.
  • B — Erase Save.
  • Y — Go Back.