So, I once had a bootleg of the said game and noticed it was just a MMC3 board with an addtiional 74'161.
After checking the traces I came to this result:
So I got myself a TKROM board (MMC3 + PRG RAM + Battery) just to be sure.
I wired things up like I thought it would be with the bootleg but the game's not booting.
Connecting it like normal MMC3 I can dump the game fine and everything is equal when comparing both files (except iNES header, of course).
I tried wiring PRG A15-A18 ONLY to the '161 as well as MMC3 as well. Neither worked.
What am I missing or even doing wrong? Thanks in advance!
After checking the traces I came to this result:
Code:
74'161
__ __
VCC |01\/16| VCC
WRAM /CE |02 15| NC
PRG D4 |03 14| PRG A15
PRG D5 |04 13| PRG A16
PRG D6 |05 12| PRG A17
PRG D7 |06 11| PRG A18
GND |07 10| GND
GND |08 09| WRAM /WE
------
__ __
VCC |01\/16| VCC
WRAM /CE |02 15| NC
PRG D4 |03 14| PRG A15
PRG D5 |04 13| PRG A16
PRG D6 |05 12| PRG A17
PRG D7 |06 11| PRG A18
GND |07 10| GND
GND |08 09| WRAM /WE
------
So I got myself a TKROM board (MMC3 + PRG RAM + Battery) just to be sure.
I wired things up like I thought it would be with the bootleg but the game's not booting.
Connecting it like normal MMC3 I can dump the game fine and everything is equal when comparing both files (except iNES header, of course).
I tried wiring PRG A15-A18 ONLY to the '161 as well as MMC3 as well. Neither worked.
What am I missing or even doing wrong? Thanks in advance!