ROM Cartridge Data
| 100h: | 'SEGA MEGA DRIVE ' |
| 110h: | '(C)SEGA 1988.JUL' |
| 120h: | GAME NAME (DOMESTIC) |
| 150h: | GAME NAME (OVERSEAS) |
| 180h: | 'GM XXXXXXX-XX' |
| 18Eh: | $XXXX |
| 190h: | CONTROL DATA |
| 1A0h: | $00000000, $XXXXXXXX |
| 1A8h: | $FF000000, $FFFFFFFF |
| 1B0h: | EXTERNAL RAM DATA |
| 1BCh: | MODEM DATA |
| 1C8h: | MEMO |
| 1F0h: | Country in which the product can be released. |
- 100h
- SEGA system name and TITLE in common with all ROMs
note: If SEGA isn't at the location then the game will not run on newer consoles.
- 110h
- Copyright notice and year/month of release
Firm name in 4 ASCII characters.
- 120h
- Domestic Game Name
- 150h
- Overseas Game Name
- 180h
- Cartridge Type
| TYPE | GAME | : GM |
| EDUCATION | : A1 |
| NO. | PRODUCT NO. |
| VER. | Data varies depending on the type of ROM or software version |
- 18Eh
- Check Sum
- 190h
- I/O use support data
| Joystick for Master System | : 0 | Tablet | : T |
| Joystick | : J | Control Ball | : B |
| Keyboard | : K | Paddle Controller | : V |
| Serial (RS232C) | : R | FDD | : F |
| Printer | : P | CDROM | : C |
- 1A0h
- ROM capacity Start Address, End Address
$00 00 00 00, $XX XX XX XX
- 1A8h
- RAM capacity Start Address, End Address
$FF 00 00 00, $FF FF FF FF
- 1B0h
- External RAM Data
When no external RAM is mounted, fill the address by a
space code and when it is mounted follow the following:
| 1B0h: | dc.b | 'RA', %1x1yz000, %00100000 |
| 1B4h: | dc.l | RAM start address |
| 1B8h: | dc.l | RAM end address |
x 1 for BACKUP and 0 If not BACKUP
yz 10 if even address only 11 if odd address only 00 if both even and odd address
- 1BCh
- Modem Data
If corresponding to MODEM, fill it by space code and
if not, follow the following:
- 1C8h
- Memo
ASCII scratch area?
- 1F0h
- Release Country
| JAPAN | J |
| USA | U |
| EUROPE | E |
| Be sure to input a space code in the unoccupied 1 ~ 7, 9 ~ 13 space. |
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