Complete disassembly of the MSX game by Konami, 1983-1984.
These sources produce bit-perfect binaries of four known official releases. They are known to be official because their checksum matches the database inside Konami's Game Master. The fourth version probably has some bad dumping data, and there is still one missing version, other than the late released SCC version.
Compile using sjasmplus.
| File | ROM variant | MD5 |
|---|---|---|
antarctic_1.asm |
First release (JP) | 97ee96f0 |
antarctic_2.asm |
Second release (JP) | 31620f84 |
antarctic_3.asm |
Third release (EU) | 4b1b0ab3 |
antarctic_4.asm |
Fourth release (EU) | 694b0479 |
The source has symbolic names for all routines and data. I tried to add semantic information using macros, in order to explain most magic numbers.
- Made in 1983, japanese market.
- Contains typo on opening screen ("KEYBOABD").
- All access to the hardware is made by I/O ports.
- Initial logo is black with message "VIDEO CARTRIDGE".
- Some debug code left over by the developers is still present.
- Made in 1984, japanese market.
- Fixed the typo.
- All access to the hardware is made using the BIOS.
- Initial logo is still the same black one.
- Debug code was removed.
- Made in 1984, european market.
- Based on the second release, with extensive changes.
- Initial logo is blue with message "KONAMI SOFTWARE".
- Replaced the New Zealand station with another USA one.
- Stage order is remixed, the South Pole arrives at stage 2 instead of stage 9.
- Graphics changes to spell "S. Pole" instead of 南極点.
- Some stages have day and night flipped.
- Copy protection to ensure the game only runs from cartridges.
- Game signature at the end.
- Made in 1984, south american market.
- A weird combination of the first and third release.
- All access to the hardware is made using the BIOS.
- Fixed the typo.
- Debug code at the end.
- Stage order is remixed.
- Initial logo is black with message "VIDEO CARTRIDGE".
- Graphics changes to spell "S. Pole" instead of 南極点.
- Some stages have day and night flipped.
- No copy protection.
- The only known dump has definitely bad bytes towards the end.
Disassembly and annotations by Ricardo Bittencourt (bluepenguin@gmail.com).
Presented for historic purposes only, if you are the owner of the IP please contact me.